/* roulang page: index */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 88px;
            --section-gap-mobile: 56px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        ul,
        ol {
            list-style: none;
        }

        /* ========== 布局骨架 ========== */
        .site-shell {
            display: flex;
            min-height: 100vh;
        }

        /* 桌面端左侧竖向导航 */
        .site-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-smooth);
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }

        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            transition: var(--transition-base);
            min-width: 22px;
        }

        .sidebar-nav a.nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .sidebar-nav a.nav-link:hover .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .sidebar-nav a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold-light);
        }

        .sidebar-nav a.nav-link.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: var(--color-accent-gold);
            border-radius: 0 4px 4px 0;
        }

        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--color-text-light-weak);
            line-height: 1.6;
        }

        /* 移动端顶部导航 */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--color-primary);
            z-index: 1000;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.4px;
        }

        .mobile-brand .brand-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            color: #fff;
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-primary);
            z-index: 999;
            flex-direction: column;
            padding: 16px 20px 32px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: var(--transition-smooth);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 10px;
            font-size: 16px;
            color: var(--color-text-light-weak);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-weight: 500;
            transition: var(--transition-base);
        }

        .mobile-drawer a.nav-link:hover,
        .mobile-drawer a.nav-link.active {
            color: var(--color-accent-gold-light);
        }

        .mobile-drawer a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            color: var(--color-accent-gold);
            opacity: 0.7;
            min-width: 22px;
        }

        /* 内容区 */
        .site-main {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--color-bg-warm);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--container-padding-desktop);
            width: 100%;
        }

        /* ========== Hero ========== */
        .hero-section {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.62) 55%, rgba(227, 167, 47, 0.18) 100%);
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .hero-text {
            color: var(--color-text-light);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(227, 167, 47, 0.18);
            border: 1px solid rgba(227, 167, 47, 0.35);
            color: var(--color-accent-gold-light);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .hero-badge::before {
            content: '';
            width: 7px;
            height: 7px;
            background: var(--color-accent-gold);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }

        .hero-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.3px;
            margin-bottom: 18px;
            color: #fff;
        }

        .hero-title .highlight {
            color: var(--color-accent-gold);
            position: relative;
            white-space: nowrap;
        }

        .hero-title .highlight-red {
            color: var(--color-accent-red);
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            max-width: 520px;
            margin-bottom: 30px;
            letter-spacing: 0.2px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.4px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent-red);
            color: #fff;
            box-shadow: 0 4px 16px rgba(229, 72, 58, 0.35);
        }

        .btn-primary:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(229, 72, 58, 0.45);
        }

        .btn-gold {
            background: var(--color-accent-gold);
            color: #1C1E22;
            box-shadow: 0 4px 16px rgba(227, 167, 47, 0.35);
        }

        .btn-gold:hover {
            background: var(--color-accent-gold-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(227, 167, 47, 0.45);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }

        .btn-outline-dark {
            background: transparent;
            border: 1px solid rgba(23, 25, 30, 0.25);
            color: var(--color-text-main);
        }

        .btn-outline-dark:hover {
            background: rgba(229, 72, 58, 0.06);
            border-color: var(--color-accent-red);
            color: var(--color-accent-red);
            transform: translateY(-1px);
        }

        .hero-data-panel {
            background: var(--color-card-dark);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            color: var(--color-text-light);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .hero-data-panel .panel-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-gold-light);
            letter-spacing: 0.8px;
            margin-bottom: 16px;
            text-transform: uppercase;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-data-panel .panel-title::after {
            content: '';
            flex: 1;
            height: 1px;
            background: rgba(227, 167, 47, 0.3);
        }

        .hero-rank-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-rank-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .hero-rank-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(227, 167, 47, 0.25);
        }

        .hero-rank-item .rank-num {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-accent-gold);
            min-width: 32px;
            text-align: center;
        }

        .hero-rank-item .rank-info {
            flex: 1;
            color: var(--color-text-light-weak);
            font-size: 13px;
        }

        .hero-rank-item .rank-info strong {
            color: var(--color-text-light);
            font-weight: 600;
            display: block;
            font-size: 14px;
        }

        .hero-rank-item .rank-value {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 16px;
            color: var(--color-accent-gold-light);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--color-accent-red);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-main);
            line-height: 1.4;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text-weak);
            max-width: 640px;
            letter-spacing: 0.2px;
        }

        /* ========== 指标看板 ========== */
        .metrics-section {
            background: var(--color-bg-warm-light);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            opacity: 0;
            transition: var(--transition-base);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-border-gold);
        }

        .metric-card:hover::before {
            opacity: 1;
        }

        .metric-value {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent-red);
            line-height: 1.1;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .metric-value.gold {
            color: var(--color-accent-gold);
        }

        .metric-value.dark {
            color: var(--color-text-main);
        }

        .metric-label {
            font-size: 13px;
            color: var(--color-text-weak);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* ========== 服务矩阵 ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
            transform: translateY(-2px);
        }

        .service-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #e8e5df;
        }

        .service-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .service-card:hover .card-image img {
            transform: scale(1.05);
        }

        .service-card .card-image .image-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(23, 25, 30, 0.75);
            color: var(--color-accent-gold-light);
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 1px;
        }

        .service-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .service-card:hover .card-title {
            color: var(--color-accent-red);
        }

        .service-card .card-text {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }

        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-red);
            transition: var(--transition-base);
        }

        .service-card .card-link .arrow {
            transition: var(--transition-base);
        }

        .service-card .card-link:hover {
            color: var(--color-accent-red-dark);
        }

        .service-card .card-link:hover .arrow {
            transform: translateX(4px);
        }

        .service-card.featured {
            grid-column: span 2;
            flex-direction: row;
            background: var(--color-card-dark);
            border-color: rgba(227, 167, 47, 0.3);
        }

        .service-card.featured .card-image {
            aspect-ratio: auto;
            width: 45%;
            min-height: 220px;
        }

        .service-card.featured .card-body {
            padding: 24px 26px;
            justify-content: center;
        }

        .service-card.featured .card-title {
            color: var(--color-text-light);
            font-size: 19px;
        }

        .service-card.featured:hover .card-title {
            color: var(--color-accent-gold-light);
        }

        .service-card.featured .card-text {
            color: var(--color-text-light-weak);
        }

        .service-card.featured .card-link {
            color: var(--color-accent-gold-light);
        }

        /* ========== 场景演示 ========== */
        .scenario-section {
            background: var(--color-primary);
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .scenario-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: linear-gradient(135deg, transparent 0%, rgba(227, 167, 47, 0.06) 100%);
            pointer-events: none;
        }

        .scenario-section .section-title {
            color: #fff;
        }

        .scenario-section .section-desc {
            color: var(--color-text-light-weak);
        }

        .scenario-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .scenario-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            transition: var(--transition-base);
            position: relative;
        }

        .scenario-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(227, 167, 47, 0.3);
            transform: translateY(-2px);
        }

        .scenario-step .step-num {
            font-family: var(--font-num);
            font-size: 38px;
            font-weight: 800;
            color: rgba(227, 167, 47, 0.4);
            line-height: 1;
            margin-bottom: 12px;
        }

        .scenario-step .step-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .scenario-step .step-text {
            font-size: 13px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
        }

        /* ========== 结果对比 ========== */
        .compare-section {
            background: var(--color-bg-warm-light);
        }

        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-light);
            background: var(--color-card-white);
            box-shadow: var(--shadow-card);
        }

        .compare-table {
            width: 100%;
            min-width: 680px;
            border-collapse: collapse;
            font-size: 15px;
        }

        .compare-table thead th {
            background: var(--color-primary);
            color: var(--color-text-light);
            padding: 16px 18px;
            text-align: left;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.4px;
            white-space: nowrap;
        }

        .compare-table thead th.highlight-col {
            background: var(--color-accent-gold);
            color: #1C1E22;
            position: relative;
        }

        .compare-table thead th.highlight-col .rec-badge {
            display: inline-block;
            background: var(--color-accent-red);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 3px;
            margin-left: 8px;
            letter-spacing: 0.5px;
        }

        .compare-table tbody td {
            padding: 15px 18px;
            border-top: 1px solid var(--color-border-light);
            color: var(--color-text-main);
            font-size: 14px;
            vertical-align: middle;
        }

        .compare-table tbody td.highlight-col {
            background: rgba(227, 167, 47, 0.08);
            border-left: 2px solid var(--color-accent-gold);
            font-weight: 600;
        }

        .compare-table tbody tr:hover td {
            background: rgba(227, 167, 47, 0.04);
        }

        .compare-table tbody tr:hover td.highlight-col {
            background: rgba(227, 167, 47, 0.12);
        }

        .compare-table .compare-label {
            font-weight: 600;
            color: var(--color-text-main);
            white-space: nowrap;
        }

        .compare-check {
            color: var(--color-accent-teal);
            font-weight: 700;
            font-size: 16px;
        }

        .compare-dash {
            color: var(--color-text-weak);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(227, 167, 47, 0.3);
        }

        .faq-item.open {
            border-color: var(--color-border-gold);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            letter-spacing: 0.3px;
            position: relative;
            transition: var(--transition-base);
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: var(--color-accent-red);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-weak);
            transition: var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent-gold);
            border-color: var(--color-accent-gold);
            color: #1C1E22;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition-smooth);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.85;
            letter-spacing: 0.2px;
            padding-left: 14px;
            border-left: 3px solid var(--color-accent-gold);
            padding-top: 4px;
            padding-bottom: 4px;
        }

        /* ========== 转化表单 ========== */
        .form-section {
            background: var(--color-primary);
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .form-section::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent-gold) 0%, var(--color-accent-red) 50%, var(--color-accent-gold) 100%);
        }

        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .form-info .form-title {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .form-info .form-text {
            font-size: 15px;
            color: var(--color-text-light-weak);
            line-height: 1.9;
            margin-bottom: 24px;
        }

        .form-info .form-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .form-info .form-point {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
        }

        .form-info .form-point .point-dot {
            width: 6px;
            height: 6px;
            background: var(--color-accent-gold);
            border-radius: 50%;
            margin-top: 8px;
            flex-shrink: 0;
        }

        .form-card {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
        }

        .form-card .form-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 18px;
        }

        .form-field {
            margin-bottom: 14px;
        }

        .form-field label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-main);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-field input,
        .form-field select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            background: var(--color-bg-warm-light);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.2);
            outline: none;
            background: #fff;
        }

        .form-field-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 20px;
            background: var(--color-accent-red);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
            transition: var(--transition-base);
            margin-top: 6px;
            cursor: pointer;
        }

        .form-submit-btn:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(229, 72, 58, 0.4);
        }

        .form-submit-btn:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(229, 72, 58, 0.3);
        }

        .form-trust {
            font-size: 12px;
            color: var(--color-text-weak);
            text-align: center;
            margin-top: 12px;
            letter-spacing: 0.2px;
            line-height: 1.6;
        }

        /* ========== 资讯区 ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .news-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .news-list-item:hover {
            padding-left: 8px;
        }

        .news-list-item .news-date {
            font-family: var(--font-num);
            font-size: 13px;
            color: var(--color-text-weak);
            min-width: 70px;
            letter-spacing: 0.5px;
        }

        .news-list-item .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-main);
            letter-spacing: 0.2px;
            flex: 1;
            transition: var(--transition-base);
        }

        .news-list-item:hover .news-title {
            color: var(--color-accent-red);
        }

        .news-list-item .news-tag {
            font-size: 12px;
            color: var(--color-accent-red);
            font-weight: 600;
            padding: 3px 10px;
            background: rgba(229, 72, 58, 0.08);
            border-radius: 20px;
            white-space: nowrap;
        }

        .news-featured {
            background: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .news-featured:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-border-gold);
        }

        .news-featured .news-featured-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #e8e5df;
        }

        .news-featured .news-featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .news-featured:hover .news-featured-img img {
            transform: scale(1.05);
        }

        .news-featured .news-featured-body {
            padding: 18px 20px;
        }

        .news-featured .news-featured-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .news-featured:hover .news-featured-title {
            color: var(--color-accent-red);
        }

        .news-featured .news-featured-text {
            font-size: 13px;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-light-weak);
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--color-text-light-weak);
            padding: 6px 0;
            transition: var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--color-accent-gold-light);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.3px;
            line-height: 1.6;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--color-accent-gold-light);
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1199px) {
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-card.featured {
                grid-column: span 2;
            }
            .scenario-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 1023px) {
            .site-sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .site-main {
                margin-left: 0;
                padding-top: 60px;
            }
            .hero-section .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 28px;
            }
            .form-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-layout {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 var(--container-padding-mobile);
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card.featured {
                grid-column: span 1;
                flex-direction: column;
            }
            .service-card.featured .card-image {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .scenario-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 21px;
            }
            .form-card {
                padding: 20px 16px;
            }
            .form-field-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .footer-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .compare-table-wrap {
                margin: 0 -4px;
            }
        }

        @media (max-width: 480px) {
            .hero-title {
                font-size: 22px;
            }
            .hero-section {
                min-height: 460px;
            }
            .metric-value {
                font-size: 26px;
            }
            .section-title {
                font-size: 19px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
            .faq-question {
                font-size: 14px;
                padding: 15px 14px;
            }
            .faq-answer p {
                font-size: 13px;
            }
            .news-list-item {
                flex-wrap: wrap;
                gap: 6px;
            }
            .news-list-item .news-date {
                min-width: 60px;
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 80px;
            --section-gap-mobile: 48px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--container-padding-desktop);
            padding-right: var(--container-padding-desktop);
        }

        /* ===== 左侧竖向导航（桌面端） ===== */
        .sidebar-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-primary);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }

        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            min-width: 22px;
        }

        .sidebar-nav a.nav-link:hover {
            background-color: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .sidebar-nav a.nav-link.active {
            background-color: rgba(227, 167, 47, 0.12);
            color: var(--color-text-light);
            border-left: 3px solid var(--color-accent-gold);
            padding-left: 11px;
        }

        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .sidebar-nav a.nav-link.active::after {
            content: '';
            position: absolute;
            right: 12px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent-gold);
        }

        .sidebar-bottom {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-bottom .version-tip {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.5px;
            line-height: 1.6;
        }

        .sidebar-bottom .version-tip strong {
            color: var(--color-text-light);
            font-weight: 600;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background-color: var(--color-primary);
            z-index: 1001;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-header .mobile-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
        }

        .mobile-header .mobile-brand .brand-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .hamburger-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: none;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .hamburger-btn:hover span {
            background-color: var(--color-accent-gold);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--color-primary);
            z-index: 1000;
            padding: 20px 16px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-text-light-weak);
            padding: 12px 8px 8px;
            font-weight: 500;
        }

        .mobile-drawer a.nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 12px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .mobile-drawer a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            opacity: 0.6;
        }

        .mobile-drawer a.nav-link:hover {
            background-color: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .mobile-drawer a.nav-link.active {
            background-color: rgba(227, 167, 47, 0.12);
            color: var(--color-text-light);
            border-left: 3px solid var(--color-accent-gold);
        }

        .mobile-drawer a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        /* ===== 主内容区 ===== */
        .page-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

        /* ===== Hero 区域（分类页简化版） ===== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.55) 60%, rgba(227, 167, 47, 0.18) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding: 72px 0 48px;
            width: 100%;
        }

        .page-hero .hero-left {
            flex: 1;
            min-width: 280px;
            max-width: 680px;
        }

        .page-hero .hero-left .hero-badge {
            display: inline-block;
            background-color: rgba(227, 167, 47, 0.18);
            border: 1px solid rgba(227, 167, 47, 0.4);
            color: var(--color-accent-gold-light);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .page-hero .hero-left h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .page-hero .hero-left h1 .highlight {
            color: var(--color-accent-gold);
        }

        .page-hero .hero-left .hero-sub {
            font-size: 16px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            max-width: 560px;
        }

        .page-hero .hero-right {
            flex-shrink: 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
            background-color: rgba(23, 25, 30, 0.6);
            padding: 10px 16px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .breadcrumb a {
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-accent-gold);
        }

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb .current {
            color: var(--color-accent-gold);
            font-weight: 500;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }

        .section.bg-white {
            background-color: var(--color-card-white);
        }

        .section.bg-dark {
            background-color: var(--color-primary);
        }

        .section.bg-warm {
            background-color: var(--color-bg-warm);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--color-accent-red);
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-main);
            line-height: 1.35;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }

        .section-header .section-desc {
            font-size: 15px;
            color: var(--color-text-weak);
            max-width: 640px;
            line-height: 1.8;
        }

        .section.bg-dark .section-header h2 {
            color: var(--color-text-light);
        }

        .section.bg-dark .section-header .section-desc {
            color: var(--color-text-light-weak);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            line-height: 1.4;
            text-align: center;
        }

        .btn-primary {
            background-color: var(--color-accent-red);
            color: #fff;
            box-shadow: 0 4px 16px rgba(229, 72, 58, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(229, 72, 58, 0.35);
        }

        .btn-gold {
            background-color: var(--color-accent-gold);
            color: var(--color-primary);
            box-shadow: 0 4px 16px rgba(227, 167, 47, 0.25);
        }

        .btn-gold:hover {
            background-color: var(--color-accent-gold-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(227, 167, 47, 0.35);
        }

        .btn-outline {
            background-color: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: var(--color-text-light);
        }

        .btn-outline:hover {
            border-color: var(--color-accent-gold);
            color: var(--color-accent-gold);
            background-color: rgba(227, 167, 47, 0.08);
        }

        .btn-outline-dark {
            background-color: transparent;
            border: 1.5px solid rgba(23, 25, 30, 0.25);
            color: var(--color-text-main);
        }

        .btn-outline-dark:hover {
            border-color: var(--color-accent-red);
            color: var(--color-accent-red);
            background-color: rgba(229, 72, 58, 0.05);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        /* ===== 指标规则列表 ===== */
        .rules-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .rule-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: var(--transition-base);
        }

        .rule-item:last-child {
            border-bottom: none;
        }

        .rule-item:hover {
            padding-left: 12px;
        }

        .rule-item .rule-number {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background-color: var(--color-primary);
            color: var(--color-accent-gold);
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .rule-item .rule-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .rule-item .rule-content p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
            max-width: 680px;
        }

        .rule-item .rule-content .rule-meta {
            display: flex;
            gap: 16px;
            margin-top: 10px;
            flex-wrap: wrap;
        }

        .rule-item .rule-content .rule-meta span {
            font-size: 13px;
            color: var(--color-text-weak);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .rule-item .rule-content .rule-meta .meta-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent-gold);
            flex-shrink: 0;
        }

        /* ===== 数据卡 2x2 ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .data-card {
            background-color: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            opacity: 0;
            transition: var(--transition-base);
        }

        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .data-card:hover::before {
            opacity: 1;
        }

        .data-card .data-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-weak);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .data-card .data-value {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .data-card .data-value.gold {
            color: var(--color-accent-gold);
        }

        .data-card .data-value.red {
            color: var(--color-accent-red);
        }

        .data-card .data-value.teal {
            color: var(--color-accent-teal);
        }

        .data-card .data-unit {
            font-size: 14px;
            color: var(--color-text-weak);
            font-weight: 400;
        }

        .data-card .data-note {
            font-size: 13px;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin-top: 8px;
            padding-top: 10px;
            border-top: 1px solid var(--color-border-light);
        }

        /* ===== 小型对比条纹 ===== */
        .compare-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
        }

        .compare-strip .compare-col {
            padding: 24px 28px;
            background-color: var(--color-card-white);
            border-right: 1px solid var(--color-border-light);
            transition: var(--transition-base);
        }

        .compare-strip .compare-col:last-child {
            border-right: none;
        }

        .compare-strip .compare-col.featured {
            background-color: var(--color-primary);
            border-top: 3px solid var(--color-accent-gold);
            position: relative;
        }

        .compare-strip .compare-col.featured::after {
            content: '热门档';
            position: absolute;
            top: 12px;
            right: 12px;
            font-size: 11px;
            font-weight: 600;
            background-color: var(--color-accent-gold);
            color: var(--color-primary);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.5px;
        }

        .compare-strip .compare-col:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .compare-strip .compare-tier {
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--color-text-weak);
            margin-bottom: 6px;
        }

        .compare-strip .compare-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 10px;
        }

        .compare-strip .compare-col.featured .compare-tier,
        .compare-strip .compare-col.featured .compare-name {
            color: var(--color-text-light);
        }

        .compare-strip .compare-amount {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-accent-red);
            margin-bottom: 4px;
        }

        .compare-strip .compare-col.featured .compare-amount {
            color: var(--color-accent-gold);
        }

        .compare-strip .compare-detail {
            font-size: 13px;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        .compare-strip .compare-col.featured .compare-detail {
            color: var(--color-text-light-weak);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 820px;
        }

        .faq-item {
            background-color: var(--color-card-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

        .faq-item.active {
            border-left: 4px solid var(--color-accent-gold);
            box-shadow: var(--shadow-gold-glow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            line-height: 1.5;
            transition: var(--transition-base);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

        .faq-question:hover {
            color: var(--color-accent-red);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background-color: var(--color-bg-warm);
            color: var(--color-text-weak);
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition-base);
        }

        .faq-item.active .faq-icon {
            background-color: var(--color-primary);
            color: var(--color-accent-gold);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
        }

        /* ===== CTA 表单 ===== */
        .cta-section {
            background-color: var(--color-primary);
            padding: var(--section-gap-desktop) 0;
        }

        .cta-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-light);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .cta-left p {
            font-size: 15px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            max-width: 480px;
        }

        .cta-left .cta-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 20px;
        }

        .cta-left .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-light-weak);
            list-style: none;
        }

        .cta-left .cta-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent-gold);
            flex-shrink: 0;
        }

        .cta-form-card {
            background-color: var(--color-card-white);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card-hover);
        }

        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-main);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm-light);
            transition: var(--transition-base);
            font-family: var(--font-sans);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.15);
            outline: none;
            background-color: #fff;
        }

        .form-group input::placeholder {
            color: var(--color-text-weak);
            opacity: 0.7;
        }

        .form-tip {
            font-size: 12px;
            color: var(--color-text-weak);
            margin-top: 12px;
            text-align: center;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background-color: var(--color-primary);
            padding: 48px 0 24px;
            color: var(--color-text-light-weak);
        }

        .footer-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-light);
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .site-footer .footer-layout a {
            display: block;
            font-size: 14px;
            color: var(--color-text-light-weak);
            padding: 6px 0;
            transition: var(--transition-base);
        }

        .site-footer .footer-layout a:hover {
            color: var(--color-accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .copyright {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--color-accent-gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .sidebar-nav-wrapper {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .page-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }

            .container {
                padding-left: var(--container-padding-mobile);
                padding-right: var(--container-padding-mobile);
            }

            .page-hero .hero-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .page-hero .hero-left {
                max-width: 100%;
            }

            .page-hero .hero-left h1 {
                font-size: 28px;
            }

            .section {
                padding: var(--section-gap-mobile) 0;
            }

            .cta-section {
                padding: var(--section-gap-mobile) 0;
            }

            .cta-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .data-card .data-value {
                font-size: 32px;
            }

            .compare-strip {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .compare-strip .compare-col {
                border-right: none;
                border-bottom: 1px solid var(--color-border-light);
            }

            .compare-strip .compare-col:last-child {
                border-bottom: none;
            }

            .footer-layout {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                min-height: 280px;
            }

            .page-hero .hero-content {
                padding: 56px 0 32px;
            }

            .page-hero .hero-left h1 {
                font-size: 26px;
            }

            .page-hero .hero-left .hero-sub {
                font-size: 15px;
            }

            .breadcrumb {
                font-size: 12px;
                padding: 8px 12px;
                flex-wrap: wrap;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .data-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .data-card {
                padding: 20px;
            }

            .data-card .data-value {
                font-size: 30px;
            }

            .rule-item {
                flex-direction: row;
                gap: 14px;
                padding: 18px 0;
            }

            .rule-item .rule-number {
                width: 34px;
                height: 34px;
                font-size: 17px;
            }

            .rule-item .rule-content h3 {
                font-size: 16px;
            }

            .faq-question {
                font-size: 15px;
                padding: 15px 16px;
            }

            .cta-form-card {
                padding: 24px 20px;
            }

            .footer-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .page-hero .hero-left h1 {
                font-size: 24px;
                line-height: 1.35;
            }

            .page-hero .hero-left .hero-sub {
                font-size: 14px;
            }

            .breadcrumb {
                font-size: 11px;
                gap: 5px;
            }

            .btn {
                width: 100%;
                padding: 12px 20px;
                font-size: 14px;
            }

            .btn-sm {
                width: auto;
            }

            .section-header {
                margin-bottom: 28px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .data-card .data-value {
                font-size: 26px;
            }

            .compare-strip .compare-col {
                padding: 18px 20px;
            }

            .compare-strip .compare-amount {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 88px;
            --section-gap-mobile: 56px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-primary);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }

        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            transition: var(--transition-base);
        }

        .sidebar-nav a.nav-link:hover {
            background-color: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .sidebar-nav a.nav-link:hover .nav-num {
            opacity: 1;
            color: var(--color-accent-gold);
        }

        .sidebar-nav a.nav-link.active {
            background-color: rgba(227, 167, 47, 0.12);
            color: var(--color-text-light);
        }

        .sidebar-nav a.nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--color-accent-gold);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .sidebar-bottom {
            padding: 16px 24px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--color-text-light-weak);
            line-height: 1.6;
        }

        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            height: 56px;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .mobile-header .mobile-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .mobile-brand .brand-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
        }

        .hamburger {
            width: 36px;
            height: 36px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--color-primary);
            z-index: 999;
            padding: 20px 16px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a.mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .mobile-menu a.mobile-nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            color: var(--color-text-light-weak);
            opacity: 0.6;
        }

        .mobile-menu a.mobile-nav-link:hover,
        .mobile-menu a.mobile-nav-link.active {
            background-color: rgba(227, 167, 47, 0.12);
            color: var(--color-text-light);
        }

        .mobile-menu a.mobile-nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .container {
            max-width: 1280px;
            width: 100%;
            margin: 0 auto;
            padding-left: var(--container-padding-desktop);
            padding-right: var(--container-padding-desktop);
        }

        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            padding: 48px 0 40px;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.55) 60%, rgba(227, 167, 47, 0.2) 100%);
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--color-accent-gold);
        }

        .breadcrumb a:hover {
            color: var(--color-accent-gold-light);
            text-decoration: underline;
        }

        .breadcrumb .sep {
            color: var(--color-text-light-weak);
            opacity: 0.6;
        }

        .banner-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .banner-title .highlight {
            color: var(--color-accent-gold);
        }

        .banner-subtitle {
            font-size: 17px;
            color: var(--color-text-light-weak);
            max-width: 720px;
            line-height: 1.8;
        }

        .main-content {
            padding: 48px 0 var(--section-gap-desktop);
        }

        .entry-layout {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 32px;
            align-items: start;
        }

        .entry-tabs {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            position: sticky;
            top: 24px;
        }

        .entry-tabs .tab-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-weak);
            letter-spacing: 0.8px;
            padding: 8px 12px 12px;
            border-bottom: 1px solid var(--color-border-light);
            margin-bottom: 8px;
        }

        .entry-tab-btn {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-main);
            text-align: left;
            transition: var(--transition-base);
            position: relative;
        }

        .entry-tab-btn .tab-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-text-weak);
            opacity: 0.4;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .entry-tab-btn:hover {
            background-color: var(--color-bg-warm-light);
        }

        .entry-tab-btn.active {
            background-color: rgba(227, 167, 47, 0.12);
            color: var(--color-primary);
            box-shadow: inset 3px 0 0 var(--color-accent-gold);
        }

        .entry-tab-btn.active .tab-dot {
            background: var(--color-accent-gold);
            opacity: 1;
        }

        .entry-cards-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .entry-card {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

        .entry-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .entry-card .entry-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .entry-card:hover .entry-card-img {
            transform: scale(1.03);
        }

        .entry-card .entry-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .entry-card .entry-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent-teal);
            background: rgba(31, 163, 143, 0.1);
            padding: 4px 10px;
            border-radius: 20px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .entry-card .entry-card-tag.gold {
            color: var(--color-accent-gold);
            background: rgba(227, 167, 47, 0.12);
        }

        .entry-card .entry-card-tag.red {
            color: var(--color-accent-red);
            background: rgba(229, 72, 58, 0.1);
        }

        .entry-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .entry-card p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .entry-card .entry-card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-red);
            transition: var(--transition-base);
        }

        .entry-card .entry-card-link .arrow {
            transition: var(--transition-base);
        }

        .entry-card .entry-card-link:hover {
            color: var(--color-accent-red-dark);
        }

        .entry-card .entry-card-link:hover .arrow {
            transform: translateX(4px);
        }

        .entry-card.featured {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 2px solid var(--color-border-gold);
        }

        .entry-card.featured .entry-card-img {
            width: 100%;
            height: 100%;
            aspect-ratio: auto;
            object-fit: cover;
        }

        .entry-card.featured .entry-card-body {
            padding: 28px 30px;
            justify-content: center;
        }

        .entry-card.featured h3 {
            font-size: 22px;
        }

        .entry-points {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .entry-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        .entry-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent-gold);
            margin-top: 10px;
            flex-shrink: 0;
        }

        .faq-section {
            margin-top: var(--section-gap-desktop);
        }

        .section-heading {
            font-size: 26px;
            font-weight: 800;
            color: var(--color-text-main);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-subheading {
            font-size: 16px;
            color: var(--color-text-weak);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
        }

        .faq-item {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            text-align: left;
            background: none;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-warm-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-text-weak);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-icon {
            background: rgba(227, 167, 47, 0.15);
            color: var(--color-accent-gold);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
            border-left: 3px solid var(--color-accent-gold);
            padding-left: 14px;
        }

        .cta-section {
            margin-top: var(--section-gap-desktop);
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 48px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(227, 167, 47, 0.08);
            pointer-events: none;
        }

        .cta-info {
            position: relative;
            z-index: 1;
        }

        .cta-info h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .cta-info h2 .highlight {
            color: var(--color-accent-gold);
        }

        .cta-info p {
            font-size: 16px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-trust-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .cta-trust-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
        }

        .cta-trust-list li .check-icon {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(31, 163, 143, 0.2);
            color: var(--color-accent-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            flex-shrink: 0;
        }

        .cta-form-card {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            box-shadow: var(--shadow-gold-glow);
            position: relative;
            z-index: 1;
        }

        .cta-form-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 18px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-bottom: 14px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-main);
        }

        .form-group input,
        .form-group select {
            padding: 12px 14px;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            font-size: 15px;
            background: var(--color-bg-warm-light);
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.12);
            outline: none;
            background: #fff;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--color-accent-red);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(229, 72, 58, 0.3);
        }

        .btn-gold {
            background: var(--color-accent-gold);
            color: #141518;
        }

        .btn-gold:hover {
            background: var(--color-accent-gold-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(227, 167, 47, 0.35);
        }

        .btn-block {
            width: 100%;
        }

        .form-hint {
            font-size: 12px;
            color: var(--color-text-weak);
            text-align: center;
            margin-top: 10px;
            line-height: 1.5;
        }

        .site-footer {
            background: var(--color-primary);
            padding: 48px 0 28px;
            margin-top: var(--section-gap-desktop);
        }

        .footer-layout {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
        }

        .site-footer a {
            display: block;
            font-size: 14px;
            color: var(--color-text-light-weak);
            margin-bottom: 10px;
            transition: var(--transition-base);
        }

        .site-footer a:hover {
            color: var(--color-accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .copyright {
            font-size: 12px;
            color: var(--color-text-light-weak);
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 12px;
            color: var(--color-text-light-weak);
            margin-bottom: 0;
        }

        .footer-links a:hover {
            color: var(--color-accent-gold);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }

            .mobile-header {
                display: flex;
            }

            .container {
                padding-left: var(--container-padding-mobile);
                padding-right: var(--container-padding-mobile);
            }

            .banner-title {
                font-size: 30px;
            }

            .entry-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .entry-tabs {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }

            .entry-tabs .tab-title {
                width: 100%;
                margin-bottom: 4px;
                padding-bottom: 8px;
            }

            .entry-tab-btn {
                flex: 1;
                min-width: 140px;
                justify-content: center;
            }

            .cta-section {
                grid-template-columns: 1fr;
                padding: 36px 28px;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .banner-title {
                font-size: 26px;
            }

            .banner-subtitle {
                font-size: 15px;
            }

            .entry-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .entry-card.featured {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }

            .entry-card.featured .entry-card-img {
                aspect-ratio: 16/9;
            }

            .form-row {
                grid-template-columns: 1fr;
            }

            .footer-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-links {
                justify-content: center;
            }

            .cta-section {
                padding: 28px 20px;
            }

            .cta-form-card {
                padding: 22px 20px;
            }
        }

        @media (max-width: 520px) {
            .banner-title {
                font-size: 24px;
            }

            .entry-tab-btn {
                min-width: 100%;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .section-heading {
                font-size: 22px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 88px;
            --section-gap-mobile: 56px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--container-padding-desktop);
        }

        /* ============ 桌面端左侧导航 ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            color: var(--color-text-light);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: 2px 0 16px rgba(23, 25, 30, 0.25);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }

        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }

        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }

        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            min-width: 22px;
        }

        .sidebar-nav a.nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .sidebar-nav a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold);
        }

        .sidebar-nav a.nav-link.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 32px;
            background: var(--color-accent-gold);
            border-radius: 0 4px 4px 0;
        }

        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        .sidebar-footer {
            padding: 16px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.5px;
        }

        .sidebar-footer .sidebar-status {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 6px;
        }

        .sidebar-footer .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent-teal);
            flex-shrink: 0;
            animation: pulse-dot 2.2s ease infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        /* ============ 移动端顶部导航 ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--color-primary);
            z-index: 1001;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            box-shadow: 0 2px 12px rgba(23, 25, 30, 0.3);
        }

        .mobile-header .mobile-brand {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .mobile-brand .brand-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
        }

        .hamburger-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            z-index: 1002;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-smooth);
            transform-origin: center;
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-primary);
            z-index: 1000;
            padding: 20px 18px;
            flex-direction: column;
            gap: 4px;
            transform: translateY(-100%);
            transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateY(0);
        }

        .mobile-drawer .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }

        .mobile-drawer a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-nav);
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .mobile-drawer a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            opacity: 0.6;
            min-width: 22px;
        }

        .mobile-drawer a.nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }

        .mobile-drawer a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold);
        }

        .mobile-drawer a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        /* ============ 主内容区 ============ */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ Hero 简化版 ============ */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
            padding: 90px 0 48px;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.55) 55%, rgba(227, 167, 47, 0.18) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .category-hero .breadcrumb a {
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }

        .category-hero .breadcrumb a:hover {
            color: var(--color-accent-gold);
        }

        .category-hero .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.35);
        }

        .category-hero .breadcrumb .current {
            color: var(--color-accent-gold);
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text-light);
            max-width: 700px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .category-hero h1 .highlight-gold {
            color: var(--color-accent-gold);
        }

        .category-hero .hero-subtitle {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(245, 243, 238, 0.78);
            max-width: 580px;
        }

        .category-hero .hero-data-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 22px;
            padding: 10px 18px;
            background: rgba(227, 167, 47, 0.13);
            border: 1px solid rgba(227, 167, 47, 0.35);
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--color-accent-gold);
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        /* ============ 通用板块样式 ============ */
        .section {
            padding: var(--section-gap-desktop) 0;
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-accent-red);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: var(--color-text-main);
            letter-spacing: 0.4px;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-weak);
            max-width: 620px;
            margin-bottom: 36px;
        }

        /* ============ 大对比表 ============ */
        .compare-table-section {
            background: var(--color-bg-warm);
        }

        .compare-table-wrapper {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
        }

        .compare-table-scroll {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .compare-table {
            width: 100%;
            min-width: 840px;
            border-collapse: collapse;
            font-size: 15px;
            line-height: 1.7;
        }

        .compare-table th {
            background: var(--color-primary);
            color: var(--color-text-light);
            font-weight: 600;
            padding: 18px 20px;
            text-align: left;
            letter-spacing: 0.4px;
            white-space: nowrap;
            position: sticky;
            top: 0;
            z-index: 3;
        }

        .compare-table th .th-sub {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--color-text-light-weak);
            letter-spacing: 0.3px;
            margin-top: 2px;
        }

        .compare-table th.recommended-col {
            background: linear-gradient(180deg, #1D2026 0%, #24272E 100%);
            border-bottom: 3px solid var(--color-accent-gold);
            position: relative;
        }

        .compare-table th.recommended-col .rec-badge {
            display: inline-block;
            background: var(--color-accent-gold);
            color: var(--color-primary);
            font-size: 11px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 1px;
            margin-left: 8px;
            vertical-align: middle;
        }

        .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-main);
            vertical-align: top;
        }

        .compare-table td.dimension {
            font-weight: 600;
            color: var(--color-text-main);
            background: var(--color-bg-warm-light);
            white-space: nowrap;
            min-width: 110px;
        }

        .compare-table td.recommended-cell {
            background: rgba(227, 167, 47, 0.06);
            border-left: 1px solid rgba(227, 167, 47, 0.2);
            border-right: 1px solid rgba(227, 167, 47, 0.2);
        }

        .compare-table td .cell-value {
            font-weight: 500;
        }

        .compare-table td .cell-note {
            display: block;
            font-size: 13px;
            color: var(--color-text-weak);
            margin-top: 3px;
        }

        .compare-table td .cell-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .cell-tag.tag-red {
            background: rgba(229, 72, 58, 0.1);
            color: var(--color-accent-red);
        }

        .cell-tag.tag-gold {
            background: rgba(227, 167, 47, 0.14);
            color: #B8860B;
        }

        .cell-tag.tag-teal {
            background: rgba(31, 163, 143, 0.12);
            color: var(--color-accent-teal);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table tr:hover td {
            background: rgba(244, 241, 234, 0.6);
        }

        .compare-table tr:hover td.dimension {
            background: #EDE9E0;
        }

        .compare-table tr:hover td.recommended-cell {
            background: rgba(227, 167, 47, 0.09);
        }

        /* ============ 左右对比卡 ============ */
        .compare-cards-section {
            background: var(--color-primary);
            padding: var(--section-gap-desktop) 0;
        }

        .compare-cards-section .section-title {
            color: var(--color-text-light);
        }

        .compare-cards-section .section-desc {
            color: var(--color-text-light-weak);
        }

        .compare-cards-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 20px;
        }

        .compare-card {
            background: var(--color-card-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            transition: var(--transition-smooth);
            overflow: hidden;
        }

        .compare-card:hover {
            border-color: rgba(227, 167, 47, 0.35);
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .compare-card.recommended-card {
            border-color: rgba(227, 167, 47, 0.5);
            background: linear-gradient(160deg, #1D2026 0%, #23272E 100%);
        }

        .compare-card.recommended-card::before {
            content: '推荐路径';
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--color-accent-gold);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 1px;
        }

        .compare-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .compare-card .card-icon.icon-gold {
            background: rgba(227, 167, 47, 0.14);
            color: var(--color-accent-gold);
        }

        .compare-card .card-icon.icon-red {
            background: rgba(229, 72, 58, 0.12);
            color: var(--color-accent-red);
        }

        .compare-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }

        .compare-card .card-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-light-weak);
            margin-bottom: 20px;
        }

        .compare-card .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 22px;
        }

        .compare-card .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.65;
            color: rgba(245, 243, 238, 0.8);
        }

        .compare-card .compare-list li .list-icon {
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            margin-top: 3px;
        }

        .compare-card .compare-list li .list-icon.icon-check {
            color: var(--color-accent-teal);
        }

        .compare-card .compare-list li .list-icon.icon-arrow {
            color: var(--color-accent-gold);
        }

        .compare-card .compare-list li strong {
            color: var(--color-text-light);
            font-weight: 600;
        }

        .compare-card .card-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 20px;
            aspect-ratio: 16 / 9;
        }

        .compare-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .compare-card:hover .card-image img {
            transform: scale(1.04);
        }

        /* ============ 窄版转化表单 ============ */
        .cta-form-section {
            background: var(--color-bg-warm);
            padding: var(--section-gap-desktop) 0;
        }

        .cta-form-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 48px;
            position: relative;
            overflow: hidden;
        }

        .cta-form-wrapper::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(227, 167, 47, 0.12) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-form-left {
            position: relative;
            z-index: 2;
        }

        .cta-form-left .cta-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--color-accent-gold);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .cta-form-left h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-light);
            line-height: 1.45;
            margin-bottom: 14px;
            letter-spacing: 0.4px;
        }

        .cta-form-left p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-light-weak);
            max-width: 400px;
        }

        .cta-form-left .cta-trust {
            display: flex;
            gap: 20px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .cta-form-left .trust-item {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--color-text-light-weak);
        }

        .cta-form-left .trust-item .trust-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent-gold);
            flex-shrink: 0;
        }

        .cta-form-right {
            position: relative;
            z-index: 2;
            background: var(--color-card-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-card);
            padding: 28px;
        }

        .cta-form-right .form-row {
            margin-bottom: 16px;
        }

        .cta-form-right label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-light);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .cta-form-right input,
        .cta-form-right select {
            width: 100%;
            padding: 12px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            color: var(--color-text-light);
            font-size: 15px;
            transition: var(--transition-base);
            appearance: none;
            -webkit-appearance: none;
        }

        .cta-form-right input::placeholder {
            color: rgba(245, 243, 238, 0.4);
        }

        .cta-form-right input:focus,
        .cta-form-right select:focus {
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.15);
            outline: none;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-form-right select {
            cursor: pointer;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A8ABB3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: var(--transition-base);
            text-align: center;
            white-space: nowrap;
            border: none;
        }

        .btn-primary {
            background: var(--color-accent-red);
            color: #fff;
            padding: 14px 28px;
            font-size: 16px;
            width: 100%;
        }

        .btn-primary:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(229, 72, 58, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(229, 72, 58, 0.2);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
        }

        .form-tip {
            font-size: 12px;
            color: var(--color-text-light-weak);
            margin-top: 12px;
            text-align: center;
            letter-spacing: 0.3px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-primary);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer .container {
            max-width: 1280px;
            margin: 0 auto;
        }

        .footer-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-light-weak);
            max-width: 280px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.4px;
        }

        .site-footer .footer-layout a {
            display: block;
            font-size: 14px;
            color: var(--color-text-light-weak);
            padding: 6px 0;
            transition: var(--transition-base);
        }

        .site-footer .footer-layout a:hover {
            color: var(--color-accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: rgba(245, 243, 238, 0.45);
            letter-spacing: 0.3px;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            font-size: 12px;
            color: rgba(245, 243, 238, 0.45);
            transition: var(--transition-base);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--color-accent-gold);
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-drawer {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }

            .container {
                padding: 0 var(--container-padding-mobile);
            }

            .category-hero {
                min-height: 320px;
                padding: 70px 0 36px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .compare-cards-grid {
                grid-template-columns: 1fr;
            }

            .cta-form-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 32px 24px;
            }

            .footer-layout {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .section {
                padding: var(--section-gap-mobile) 0;
            }

            .compare-cards-section {
                padding: var(--section-gap-mobile) 0;
            }

            .cta-form-section {
                padding: var(--section-gap-mobile) 0;
            }
        }

        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero .hero-subtitle {
                font-size: 15px;
            }

            .section-title {
                font-size: 22px;
            }

            .compare-card {
                padding: 20px;
            }

            .compare-card.recommended-card::before {
                position: static;
                display: inline-block;
                margin-bottom: 12px;
            }

            .cta-form-right {
                padding: 20px;
            }

            .footer-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }

            .category-hero {
                min-height: 280px;
                padding: 60px 0 28px;
            }

            .category-hero h1 {
                font-size: 24px;
                line-height: 1.45;
            }

            .category-hero .hero-data-badge {
                font-size: 12px;
                padding: 8px 14px;
            }

            .section-title {
                font-size: 20px;
            }

            .cta-form-wrapper {
                padding: 24px 16px;
                border-radius: var(--radius-card);
            }

            .cta-form-left h3 {
                font-size: 22px;
            }

            .compare-table th,
            .compare-table td {
                padding: 12px 14px;
                font-size: 13px;
            }

            .btn-primary {
                padding: 12px 20px;
                font-size: 15px;
            }

            .section {
                padding: 44px 0;
            }

            .compare-cards-section {
                padding: 44px 0;
            }

            .cta-form-section {
                padding: 44px 0;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 var(--container-padding-desktop);
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 var(--container-padding-mobile);
            }
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--color-primary);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 2px 0 16px rgba(0, 0, 0, 0.08);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }
        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }
        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            min-width: 22px;
        }
        .sidebar-nav a.nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }
        .sidebar-nav a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold);
        }
        .sidebar-nav a.nav-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--color-accent-gold);
            border-radius: 2px;
        }
        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }
        .sidebar-bottom {
            padding: 16px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.5px;
        }
        .sidebar-bottom .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent-teal);
            margin-right: 6px;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* ========== MOBILE HEADER ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--color-primary);
            z-index: 1001;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .mobile-header .mobile-brand {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-brand .brand-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
        }
        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-primary);
            z-index: 1000;
            padding: 16px 20px 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            transform: translateX(-100%);
            transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }
        .mobile-drawer a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-nav);
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }
        .mobile-drawer a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 600;
            opacity: 0.6;
            min-width: 24px;
        }
        .mobile-drawer a.nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
        }
        .mobile-drawer a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold);
        }
        .mobile-drawer a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }

        /* ========== MAIN CONTENT ========== */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }
        @media (max-width: 1023px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.65) 55%, rgba(227, 167, 47, 0.2) 100%);
        }
        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 56px 0;
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .page-hero .breadcrumb a {
            color: var(--color-accent-gold);
            transition: var(--transition-base);
        }
        .page-hero .breadcrumb a:hover {
            color: var(--color-accent-gold-light);
        }
        .page-hero .breadcrumb .sep {
            color: var(--color-text-light-weak);
            opacity: 0.6;
        }
        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--color-text-light);
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .page-hero h1 .highlight {
            color: var(--color-accent-gold);
        }
        .page-hero .hero-subtitle {
            font-size: 17px;
            color: var(--color-text-light-weak);
            line-height: 1.75;
            max-width: 560px;
            letter-spacing: 0.3px;
        }
        .page-hero .hero-play-btn {
            position: absolute;
            right: 48px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 3;
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(227, 167, 47, 0.15);
            border: 2px solid var(--color-accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-smooth);
        }
        .page-hero .hero-play-btn:hover {
            background: rgba(227, 167, 47, 0.3);
            box-shadow: 0 0 32px rgba(227, 167, 47, 0.35);
            transform: translateY(-50%) scale(1.05);
        }
        .page-hero .hero-play-btn .play-icon {
            width: 0;
            height: 0;
            border-style: solid;
            border-width: 12px 0 12px 20px;
            border-color: transparent transparent transparent var(--color-accent-gold);
            margin-left: 4px;
        }
        @media (max-width: 768px) {
            .page-hero {
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-subtitle {
                font-size: 15px;
            }
            .page-hero .hero-play-btn {
                display: none;
            }
        }

        /* ========== SECTION TITLES ========== */
        .section-title-group {
            margin-bottom: 36px;
        }
        .section-title-group .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-red);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-title-group .section-tag::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--color-accent-red);
            display: inline-block;
        }
        .section-title-group h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-main);
            line-height: 1.35;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }
        .section-title-group .section-desc {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.75;
            max-width: 640px;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .section-title-group h2 {
                font-size: 24px;
            }
        }

        /* ========== RANKING SECTION ========== */
        .ranking-section {
            padding: var(--section-gap-desktop) 0;
            background: var(--color-bg-warm);
        }
        .ranking-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 24px;
            align-items: start;
        }
        @media (max-width: 1024px) {
            .ranking-layout {
                grid-template-columns: 1fr;
            }
        }

        /* Ranking list */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .rank-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: transparent;
            transition: var(--transition-base);
        }
        .rank-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-border-gold);
        }
        .rank-item:hover::before {
            background: var(--color-accent-gold);
        }
        .rank-item.top-1::before {
            background: var(--color-accent-gold);
        }
        .rank-item.top-2::before {
            background: #C0C0C0;
        }
        .rank-item.top-3::before {
            background: #CD7F32;
        }
        .rank-num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            min-width: 48px;
            text-align: center;
            color: var(--color-text-weak);
            letter-spacing: 0.5px;
        }
        .rank-item.top-1 .rank-num {
            color: var(--color-accent-gold);
            font-size: 32px;
        }
        .rank-item.top-2 .rank-num {
            color: #A0A0A0;
            font-size: 30px;
        }
        .rank-item.top-3 .rank-num {
            color: #C0864F;
            font-size: 29px;
        }
        .rank-avatar {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--color-border-light);
        }
        .rank-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info .rank-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            letter-spacing: 0.3px;
            margin-bottom: 2px;
        }
        .rank-info .rank-id {
            font-size: 12px;
            color: var(--color-text-weak);
            letter-spacing: 0.5px;
        }
        .rank-stats {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-shrink: 0;
        }
        .rank-stats .stat-item {
            text-align: right;
        }
        .rank-stats .stat-label {
            font-size: 11px;
            color: var(--color-text-weak);
            letter-spacing: 0.5px;
            display: block;
            margin-bottom: 2px;
        }
        .rank-stats .stat-value {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-main);
            letter-spacing: 0.5px;
        }
        .rank-stats .stat-value.gold {
            color: var(--color-accent-gold);
        }
        .rank-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.3px;
        }
        .rank-trend.up {
            color: var(--color-accent-teal);
            background: rgba(31, 163, 143, 0.1);
        }
        .rank-trend.down {
            color: var(--color-accent-red);
            background: rgba(229, 72, 58, 0.1);
        }
        .rank-trend.stable {
            color: var(--color-text-weak);
            background: rgba(106, 110, 118, 0.1);
        }
        @media (max-width: 768px) {
            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .rank-num {
                min-width: 36px;
                font-size: 22px;
            }
            .rank-item.top-1 .rank-num { font-size: 26px; }
            .rank-item.top-2 .rank-num { font-size: 24px; }
            .rank-item.top-3 .rank-num { font-size: 23px; }
            .rank-stats {
                width: 100%;
                justify-content: flex-end;
                gap: 14px;
            }
            .rank-stats .stat-value {
                font-size: 15px;
            }
        }

        /* Side data cards */
        .side-data-cards {
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: sticky;
            top: 24px;
        }
        @media (max-width: 1024px) {
            .side-data-cards {
                position: static;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
                gap: 16px;
            }
        }
        .data-card {
            background: var(--color-card-dark);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            border: 1px solid var(--color-border-dark);
            color: var(--color-text-light);
            transition: var(--transition-base);
        }
        .data-card:hover {
            border-color: var(--color-border-gold);
            box-shadow: var(--shadow-gold-glow);
        }
        .data-card .data-card-label {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 6px;
            font-weight: 500;
        }
        .data-card .data-card-value {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent-gold);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .data-card .data-card-sub {
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }
        .data-card .data-card-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            margin-top: 8px;
            color: var(--color-accent-teal);
        }
        .data-card .mini-divider {
            height: 1px;
            background: rgba(255, 255, 255, 0.1);
            margin: 14px 0;
        }
        .data-card .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--color-text-light-weak);
            padding: 4px 0;
            letter-spacing: 0.3px;
        }
        .data-card .data-row .row-value {
            font-family: var(--font-num);
            font-weight: 600;
            color: var(--color-text-light);
        }

        /* ========== RULES STRIP ========== */
        .rules-strip {
            padding: 48px 0;
            background: var(--color-primary);
            color: var(--color-text-light);
        }
        .rules-strip .rules-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .rules-strip .rule-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .rules-strip .rule-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            background: rgba(227, 167, 47, 0.15);
            color: var(--color-accent-gold);
        }
        .rules-strip .rule-text {
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
            letter-spacing: 0.3px;
        }
        .rules-strip .rule-text strong {
            color: var(--color-text-light);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-gap-desktop) 0;
            background: var(--color-bg-warm);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border-gold);
        }
        .faq-item.open {
            border-left: 4px solid var(--color-accent-gold);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-accent-red);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--color-text-weak);
            transition: var(--transition-base);
        }
        .faq-item.open .faq-icon {
            background: var(--color-accent-gold);
            color: var(--color-primary);
            border-color: var(--color-accent-gold);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.8;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-answer p {
                font-size: 14px;
            }
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            padding: var(--section-gap-desktop) 0;
            background: var(--color-primary);
            color: var(--color-text-light);
        }
        .cta-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .cta-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .cta-info .cta-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-gold);
            letter-spacing: 1.5px;
            margin-bottom: 10px;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-light);
            line-height: 1.35;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }
        .cta-info p {
            font-size: 15px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            letter-spacing: 0.3px;
            max-width: 440px;
        }
        .cta-form-card {
            background: var(--color-card-dark);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--color-border-dark);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }
        .cta-form-card .form-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text-light);
            font-size: 15px;
            transition: var(--transition-base);
        }
        .form-group input::placeholder {
            color: var(--color-text-light-weak);
            opacity: 0.6;
        }
        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.15);
        }
        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A8ABB3' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
            cursor: pointer;
        }
        .form-group select option {
            background: var(--color-primary-light);
            color: var(--color-text-light);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        @media (max-width: 480px) {
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 14px 24px;
            border-radius: var(--radius-md);
            background: var(--color-accent-red);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: var(--transition-base);
            border: none;
        }
        .btn-primary:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(229, 72, 58, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
        }
        .form-trust-tip {
            font-size: 12px;
            color: var(--color-text-light-weak);
            margin-top: 10px;
            letter-spacing: 0.3px;
            text-align: center;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-light);
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-layout {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .footer-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            letter-spacing: 0.3px;
            max-width: 360px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-layout .footer-col a,
        .footer-layout a[data-slug] {
            display: block;
            font-size: 14px;
            color: var(--color-text-light-weak);
            padding: 5px 0;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }
        .footer-layout .footer-col a:hover,
        .footer-layout a[data-slug]:hover {
            color: var(--color-accent-gold);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.3px;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--color-accent-gold);
        }
        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
        }

        /* ========== UTILITY ========== */
        .text-gold {
            color: var(--color-accent-gold);
        }
        .text-red {
            color: var(--color-accent-red);
        }
        .text-teal {
            color: var(--color-accent-teal);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

/* roulang page: category5 */
:root {
            --color-primary: #17191E;
            --color-primary-light: #1D2026;
            --color-accent-red: #E5483A;
            --color-accent-red-dark: #C93A2E;
            --color-accent-gold: #E3A72F;
            --color-accent-gold-light: #F0C15A;
            --color-accent-teal: #1FA38F;
            --color-bg-warm: #F4F1EA;
            --color-bg-warm-light: #F7F5F0;
            --color-card-white: #FFFFFF;
            --color-card-dark: #1D2026;
            --color-text-main: #1C1E22;
            --color-text-weak: #6A6E76;
            --color-text-light: #F5F3EE;
            --color-text-light-weak: #A8ABB3;
            --color-border-light: rgba(23, 25, 30, 0.08);
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-gold: rgba(227, 167, 47, 0.45);
            --color-disabled-bg: #E5E2DA;
            --color-disabled-text: #9A9EA6;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-card: 14px;
            --radius-nav: 4px;
            --shadow-card: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --shadow-gold-glow: 0 0 0 1px rgba(227, 167, 47, 0.3), 0 8px 24px rgba(227, 167, 47, 0.15);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
            --font-num: 'Oswald', 'DIN Condensed', 'Roboto Condensed', 'PingFang SC', sans-serif;
            --nav-width: 240px;
            --section-gap-desktop: 88px;
            --section-gap-mobile: 56px;
            --container-padding-desktop: 32px;
            --container-padding-mobile: 18px;
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background-color: var(--color-bg-warm);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        button {
            font-family: var(--font-sans);
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: var(--container-padding-desktop);
            padding-right: var(--container-padding-desktop);
        }
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-primary);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-text-light);
            line-height: 1.3;
        }
        .sidebar-brand .brand-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 12px 12px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1.8px;
            color: var(--color-text-light-weak);
            padding: 16px 12px 8px;
            font-weight: 500;
        }
        .sidebar-nav a.nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-nav);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            position: relative;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
        }
        .sidebar-nav a.nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            min-width: 24px;
            transition: var(--transition-base);
        }
        .sidebar-nav a.nav-link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text-light);
        }
        .sidebar-nav a.nav-link:hover .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }
        .sidebar-nav a.nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold-light);
            font-weight: 600;
        }
        .sidebar-nav a.nav-link.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: var(--color-accent-gold);
            border-radius: 0 3px 3px 0;
        }
        .sidebar-nav a.nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }
        .sidebar-bottom {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.4px;
        }
        .sidebar-bottom .sidebar-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-accent-teal);
        }
        .sidebar-bottom .sidebar-status .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent-teal);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.55;
                transform: scale(0.85);
            }
        }
        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--color-primary);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-header .mobile-brand {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
        }
        .mobile-header .mobile-brand .brand-mark {
            display: inline-flex;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-red) 100%);
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            margin-right: 8px;
            vertical-align: middle;
        }
        .mobile-header .hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-header .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .mobile-header .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-header .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-header .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-primary);
            z-index: 998;
            flex-direction: column;
            padding: 16px 18px 24px;
            transform: translateX(-100%);
            transition: transform 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer a.mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 12px;
            border-radius: var(--radius-nav);
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-light-weak);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-base);
        }
        .mobile-drawer a.mobile-nav-link .nav-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-light-weak);
            opacity: 0.6;
            min-width: 24px;
        }
        .mobile-drawer a.mobile-nav-link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--color-text-light);
        }
        .mobile-drawer a.mobile-nav-link.active {
            background: rgba(227, 167, 47, 0.12);
            color: var(--color-accent-gold-light);
            font-weight: 600;
        }
        .mobile-drawer a.mobile-nav-link.active .nav-num {
            color: var(--color-accent-gold);
            opacity: 1;
        }
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 64px;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 25, 30, 0.92) 0%, rgba(23, 25, 30, 0.68) 55%, rgba(227, 167, 47, 0.18) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }
        .breadcrumb a {
            color: var(--color-text-light-weak);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-gold-light);
        }
        .breadcrumb .crumb-sep {
            opacity: 0.5;
        }
        .breadcrumb .crumb-current {
            color: var(--color-accent-gold-light);
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .page-hero h1 .highlight {
            color: var(--color-accent-gold);
            background: linear-gradient(135deg, rgba(227, 167, 47, 0.18) 0%, rgba(227, 167, 47, 0.05) 100%);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
        }
        .page-hero .hero-sub {
            font-size: 17px;
            color: var(--color-text-light-weak);
            max-width: 620px;
            line-height: 1.9;
        }
        .hero-tag-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            font-size: 13px;
            color: var(--color-text-light);
            letter-spacing: 0.4px;
        }
        .hero-tag .tag-icon {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent-gold);
        }
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-red);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-head .section-kicker::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--color-accent-red);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-main);
            letter-spacing: 0.4px;
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--color-text-weak);
            max-width: 680px;
            line-height: 1.9;
        }
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .guide-item {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 28px;
            background: var(--color-card-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: var(--transition-smooth);
        }
        .guide-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
            transform: translateY(-2px);
        }
        .guide-item .guide-image {
            position: relative;
            min-height: 200px;
            background-size: cover;
            background-position: center;
        }
        .guide-item .guide-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(23, 25, 30, 0.12) 0%, rgba(23, 25, 30, 0.04) 100%);
        }
        .guide-item .guide-body {
            padding: 24px 24px 24px 0;
            display: flex;
            flex-direction: column;
        }
        .guide-item .guide-number {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            color: rgba(23, 25, 30, 0.08);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }
        .guide-item h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
            line-height: 1.5;
        }
        .guide-item p {
            font-size: 15px;
            color: var(--color-text-weak);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .guide-item .guide-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }
        .guide-item .guide-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-weak);
        }
        .guide-item .guide-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-accent-teal);
        }
        .guide-item .guide-meta .meta-dot.gold {
            background: var(--color-accent-gold);
        }
        .guide-item .guide-meta .meta-dot.red {
            background: var(--color-accent-red);
        }
        .data-strip {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            overflow: hidden;
        }
        .data-strip::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 24px solid rgba(227, 167, 47, 0.08);
            pointer-events: none;
        }
        .data-strip .data-cell {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .data-strip .data-cell .data-value {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-accent-gold);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .data-strip .data-cell .data-label {
            font-size: 13px;
            color: var(--color-text-light-weak);
            margin-top: 4px;
            letter-spacing: 0.6px;
        }
        .data-strip .data-divider {
            width: 1px;
            background: rgba(255, 255, 255, 0.1);
            align-self: stretch;
        }
        .form-section {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }
        .form-section .form-intro {
            padding: 48px 40px;
            background: linear-gradient(135deg, rgba(227, 167, 47, 0.12) 0%, rgba(23, 25, 30, 0.6) 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .form-section .form-intro h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 16px;
            letter-spacing: 0.4px;
            line-height: 1.4;
        }
        .form-section .form-intro h2 .highlight {
            color: var(--color-accent-gold);
        }
        .form-section .form-intro p {
            font-size: 15px;
            color: var(--color-text-light-weak);
            line-height: 1.9;
            margin-bottom: 20px;
            max-width: 420px;
        }
        .form-section .form-intro .intro-points {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .form-section .form-intro .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.7;
        }
        .form-section .form-intro .intro-points li .point-icon {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(31, 163, 143, 0.25);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: var(--color-accent-teal);
            flex-shrink: 0;
            margin-top: 3px;
        }
        .form-section .form-card {
            padding: 48px 40px;
            background: var(--color-card-white);
        }
        .form-section .form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-main);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            background: #fff;
            font-size: 15px;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--color-accent-gold);
            box-shadow: 0 0 0 3px rgba(227, 167, 47, 0.15);
            outline: none;
        }
        .form-group input::placeholder {
            color: #B0B4BA;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.4px;
            transition: var(--transition-smooth);
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--color-accent-red);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 58, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-accent-red-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(229, 72, 58, 0.4);
        }
        .btn-gold {
            background: var(--color-accent-gold);
            color: var(--color-primary);
            box-shadow: 0 4px 14px rgba(227, 167, 47, 0.3);
        }
        .btn-gold:hover {
            background: var(--color-accent-gold-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(227, 167, 47, 0.4);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--color-text-light);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }
        .btn-full {
            width: 100%;
        }
        .form-note {
            font-size: 12px;
            color: var(--color-text-weak);
            margin-top: 12px;
            line-height: 1.7;
            letter-spacing: 0.3px;
        }
        .site-footer {
            background: var(--color-primary);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-layout {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--color-text-light-weak);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-light);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .site-footer .footer-layout a {
            display: block;
            font-size: 14px;
            color: var(--color-text-light-weak);
            padding: 6px 0;
            transition: var(--transition-base);
        }
        .site-footer .footer-layout a:hover {
            color: var(--color-accent-gold-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--color-text-light-weak);
            letter-spacing: 0.4px;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--color-text-light-weak);
            transition: var(--transition-base);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--color-accent-gold-light);
        }
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }
            .page-hero {
                min-height: 260px;
                padding: 56px 0 40px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .guide-item {
                grid-template-columns: 220px 1fr;
                gap: 20px;
            }
            .form-section {
                grid-template-columns: 1fr;
            }
            .form-section .form-intro {
                padding: 36px 28px;
            }
            .form-section .form-card {
                padding: 36px 28px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 24px 20px;
            }
            .data-strip .data-divider {
                display: none;
            }
            .footer-layout {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding-left: var(--container-padding-mobile);
                padding-right: var(--container-padding-mobile);
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .guide-item {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .guide-item .guide-image {
                min-height: 180px;
            }
            .guide-item .guide-body {
                padding: 20px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px 16px;
            }
            .data-strip .data-cell .data-value {
                font-size: 28px;
            }
            .btn {
                width: 100%;
                padding: 12px 20px;
                font-size: 15px;
            }
            .footer-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .hero-tag-row {
                gap: 6px;
            }
            .hero-tag {
                font-size: 12px;
                padding: 4px 10px;
            }
            .section-head h2 {
                font-size: 20px;
            }
            .form-section .form-intro,
            .form-section .form-card {
                padding: 28px 20px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 16px 12px;
            }
            .data-strip .data-cell .data-value {
                font-size: 24px;
            }
        }