/* roulang page: index */
:root {
            --primary: #1F6F9F;
            --primary-dark: #185A85;
            --primary-light: #EAF2F8;
            --primary-fade: rgba(31, 111, 159, 0.12);
            --primary-fade-strong: rgba(31, 111, 159, 0.18);
            --bg: #F5F8FB;
            --bg-alt: #EEF4F9;
            --surface: #FFFFFF;
            --text-main: #1B2B3A;
            --text-secondary: #5C6F7E;
            --text-muted: #8A9AA8;
            --accent: #C59B6A;
            --border: #DCE6EE;
            --border-focus: rgba(31, 111, 159, 0.25);
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow-card: 0 10px 30px rgba(28, 54, 80, 0.08);
            --shadow-card-hover: 0 18px 40px rgba(28, 54, 80, 0.16);
            --shadow-nav: 0 8px 28px rgba(28, 54, 80, 0.1);
            --shadow-btn: 0 6px 18px rgba(31, 111, 159, 0.22);
            --font-cn: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, sans-serif;
            --font-en: 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
            --section-pad-desktop: 96px;
            --section-pad-tablet: 72px;
            --section-pad-mobile: 56px;
            --gap-xl: 32px;
            --gap-lg: 24px;
            --gap-md: 18px;
            --gap-sm: 12px;
            --gap-xs: 8px;
            --transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 110px;
        }

        body {
            font-family: var(--font-cn);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary);
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: none;
        }

        section {
            position: relative;
            padding: var(--section-pad-desktop) 0;
        }

        section:nth-child(even) {
            background-color: var(--bg);
        }

        section:nth-child(odd) {
            background-color: var(--surface);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-narrow {
            max-width: 960px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-fade);
            padding: 6px 16px;
            border-radius: var(--radius-btn);
            letter-spacing: 0.3px;
            margin-bottom: 16px;
            border: 1px solid rgba(31, 111, 159, 0.15);
        }

        .section-label .accent-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }

        .section-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .section-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 6px;
            background: var(--primary-fade);
            border-radius: 3px;
            z-index: -1;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

        .section-desc-center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-head-center {
            text-align: center;
        }

        .section-head-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1050;
            width: min(1200px, calc(100% - 32px));
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(220, 230, 238, 0.7);
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-nav);
            padding: 8px 20px;
            transition: var(--transition);
        }

        .site-header .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: nowrap;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .navbar-brand-custom .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .navbar-brand-custom .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .navbar-brand-custom .brand-text .brand-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
        }

        .navbar-brand-custom .brand-text .brand-sub {
            font-size: 10px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        .navbar-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .navbar-menu li {
            position: relative;
        }

        .navbar-menu .nav-link-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .navbar-menu .nav-link-custom:hover {
            color: var(--primary);
            background: var(--primary-fade);
        }

        .navbar-menu .nav-link-custom.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
            border: 1px solid rgba(31, 111, 159, 0.15);
        }

        .nav-separator {
            width: 1px;
            height: 20px;
            background: var(--border);
            margin: 0 6px;
            flex-shrink: 0;
        }

        .nav-cta-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 14px;
        }

        .nav-search-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(31, 111, 159, 0.28);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(31, 111, 159, 0.2);
        }

        .btn-primary-custom:focus-visible {
            box-shadow: 0 0 0 4px var(--border-focus);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-outline-custom:active {
            transform: translateY(0);
        }

        .btn-outline-custom:focus-visible {
            box-shadow: 0 0 0 4px var(--border-focus);
        }

        /* Mobile bottom dock */
        .mobile-dock {
            display: none;
            position: fixed;
            bottom: 14px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1060;
            width: min(560px, calc(100% - 28px));
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(220, 230, 238, 0.75);
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-nav);
            padding: 6px 14px;
        }

        .mobile-dock .dock-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 6px;
        }

        .mobile-dock .dock-brand {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .mobile-dock .dock-brand .mini-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        .mobile-dock .dock-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .mobile-dock .dock-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .mobile-dock .dock-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .mobile-dock .dock-link:hover {
            color: var(--primary);
            background: var(--primary-fade);
        }

        /* ========== HERO / SECTION 1 ========== */
        .hero-section {
            padding: 140px 0 72px;
            background: var(--primary-light);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/0172e0ca8b853dea.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
            z-index: 0;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 44px;
            align-items: center;
        }

        .hero-content .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--surface);
            padding: 7px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(31, 111, 159, 0.2);
            margin-bottom: 18px;
            box-shadow: 0 2px 8px rgba(28, 54, 80, 0.06);
        }

        .hero-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.18;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

        .hero-title .hl {
            color: var(--primary);
            position: relative;
            white-space: nowrap;
        }

        .hero-title .hl::after {
            content: '';
            position: absolute;
            bottom: 3px;
            left: 0;
            right: 0;
            height: 8px;
            background: var(--primary-fade);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            text-align: left;
        }

        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-focus);
        }

        .stat-card .stat-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 10px;
        }

        .stat-card .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.1;
            letter-spacing: -0.5px;
        }

        .stat-card .stat-num .stat-unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-left: 2px;
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 4px;
        }

        /* ========== SECTION 2: CORE ENTRY ========== */
        .entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .entry-card {
            display: flex;
            align-items: stretch;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
            position: relative;
        }

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

        .entry-card .entry-img {
            width: 44%;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
            min-height: 200px;
        }

        .entry-card .entry-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        .entry-card .entry-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: var(--radius-btn);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .entry-card .entry-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .entry-card .entry-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .entry-card .entry-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            align-self: flex-start;
        }

        .entry-card .entry-arrow i {
            transition: transform 0.3s ease;
        }

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

        /* ========== SECTION 3: SERVICE MATRIX ========== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .matrix-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }

        .matrix-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-focus);
        }

        .matrix-item .matrix-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 14px;
        }

        .matrix-item .matrix-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 12px;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .matrix-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .matrix-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== SECTION 4: COMPARISON ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            max-width: 900px;
            margin: 0 auto;
        }

        .compare-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .compare-card.compare-bad {
            border-left: 4px solid #D8A0A0;
        }

        .compare-card.compare-good {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            border-color: rgba(31, 111, 159, 0.18);
        }

        .compare-card .compare-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .compare-card .compare-head .compare-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .compare-bad .compare-icon {
            background: #F5E6E6;
            color: #B86B6B;
        }

        .compare-good .compare-icon {
            background: var(--primary);
            color: #fff;
        }

        .compare-card .compare-head h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 0;
        }

        .compare-bad .compare-head h3 {
            color: #8B5E5E;
        }

        .compare-good .compare-head h3 {
            color: var(--primary-dark);
        }

        .compare-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .compare-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
        }

        .compare-card ul li:last-child {
            border-bottom: none;
        }

        .compare-card ul li i {
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .compare-bad ul li i {
            color: #C98282;
        }

        .compare-good ul li i {
            color: var(--primary);
        }

        /* ========== SECTION 5: TIMELINE ========== */
        .timeline-wrap {
            position: relative;
            padding-left: 0;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            top: 8px;
            bottom: 8px;
            left: 50%;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-fade-strong), var(--primary));
            transform: translateX(-50%);
            border-radius: 2px;
        }

        .timeline {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: relative;
        }

        .timeline-item {
            display: grid;
            grid-template-columns: 1fr 48px 1fr;
            align-items: start;
            position: relative;
        }

        .timeline-item .tl-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--primary-light);
            box-shadow: 0 0 0 3px var(--primary-fade);
            position: relative;
            z-index: 2;
            margin: 0 auto;
        }

        .timeline-item .tl-content {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .timeline-item .tl-content:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .timeline-item .tl-content.left {
            text-align: right;
        }

        .timeline-item .tl-phase {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            display: block;
            margin-bottom: 4px;
        }

        .timeline-item .tl-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .timeline-item .tl-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== SECTION 6: SCENARIO ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }

        .scenario-img-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .scenario-img-card img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .scenario-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            cursor: pointer;
        }

        .scenario-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-focus);
        }

        .scenario-item .sc-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .scenario-item .sc-body h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .scenario-item .sc-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== SECTION 7: NEWS LIST ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
        }

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

        .news-item:hover {
            background: var(--primary-light);
            color: inherit;
        }

        .news-item .news-date {
            flex-shrink: 0;
            width: 70px;
            text-align: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-fade);
            border-radius: var(--radius-xs);
            padding: 8px 6px;
            line-height: 1.3;
        }

        .news-item .news-date .d {
            font-size: 20px;
            font-weight: 800;
            display: block;
        }

        .news-item .news-tag {
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(197, 155, 106, 0.12);
            padding: 4px 12px;
            border-radius: var(--radius-btn);
        }

        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-item .news-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item .news-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item .news-link-icon {
            flex-shrink: 0;
            color: var(--text-muted);
            font-size: 14px;
        }

        .news-more {
            display: flex;
            justify-content: center;
            padding: 16px;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
        }

        .news-more .btn-outline-custom {
            font-size: 13px;
            padding: 8px 20px;
        }

        /* ========== SECTION 8: GUARANTEE ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .guarantee-item {
            text-align: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 18px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .guarantee-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-focus);
        }

        .guarantee-item .g-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin: 0 auto 14px;
        }

        .guarantee-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== SECTION 9: QUICK STEPS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-focus);
        }

        .step-item .step-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary-fade-strong);
            line-height: 1;
            letter-spacing: -1px;
            margin-bottom: 10px;
            display: block;
        }

        .step-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== SECTION 10: RANKING ========== */
        .ranking-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: start;
        }

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

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            box-shadow: 0 2px 8px rgba(28, 54, 80, 0.04);
            transition: var(--transition);
            cursor: pointer;
        }

        .ranking-item:hover {
            transform: translateX(3px);
            border-color: var(--border-focus);
            background: var(--primary-light);
        }

        .ranking-item .rank-num {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-muted);
            width: 30px;
            text-align: center;
            flex-shrink: 0;
        }

        .ranking-item.rank-top .rank-num {
            color: var(--accent);
            font-size: 22px;
        }

        .ranking-item .rank-img {
            width: 60px;
            height: 48px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            flex-shrink: 0;
        }

        .ranking-item .rank-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .ranking-item .rank-body {
            flex: 1;
            min-width: 0;
        }

        .ranking-item .rank-body h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-item .rank-body .rank-tag {
            font-size: 11px;
            color: var(--primary);
            font-weight: 500;
        }

        .ranking-item .rank-score {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }

        .ranking-featured {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .ranking-featured img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

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

        .ranking-featured .rf-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .ranking-featured .rf-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== SECTION 11: FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            background: var(--surface);
            box-shadow: 0 2px 8px rgba(28, 54, 80, 0.04);
            overflow: hidden;
        }

        .accordion-custom .accordion-header {
            margin: 0;
        }

        .accordion-custom .accordion-button {
            background: var(--surface);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 600;
            padding: 16px 20px;
            border-radius: var(--radius-sm) !important;
            box-shadow: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
            border-radius: var(--radius-sm) var(--radius-sm) 0 0 !important;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px var(--border-focus);
        }

        .accordion-custom .accordion-button::after {
            background-size: 14px;
            width: 14px;
            height: 14px;
            flex-shrink: 0;
        }

        .accordion-custom .accordion-button .faq-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-fade);
            border-radius: 50%;
            width: 26px;
            height: 26px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .accordion-custom .accordion-body {
            padding: 16px 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            background: var(--surface);
        }

        /* ========== SECTION 12: FORM ========== */
        .form-section {
            background: var(--primary-light) !important;
        }

        .form-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            max-width: 640px;
            margin: 0 auto;
        }

        .form-card .form-head {
            text-align: center;
            margin-bottom: 24px;
        }

        .form-card .form-head h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .form-card .form-head p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .form-control-custom {
            width: 100%;
            padding: 12px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #F7FAFC;
            font-size: 14px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .form-control-custom:focus {
            border-color: var(--primary);
            background: var(--surface);
            box-shadow: 0 0 0 4px var(--border-focus);
        }

        .form-control-custom::placeholder {
            color: var(--text-muted);
        }

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

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

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

        .form-submit-btn {
            width: 100%;
            padding: 13px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-btn);
            letter-spacing: 0.3px;
        }

        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(31, 111, 159, 0.28);
        }

        .form-submit-btn:focus-visible {
            box-shadow: 0 0 0 4px var(--border-focus);
        }

        .form-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 10px;
            margin-bottom: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #162633;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-name .fb-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            margin-bottom: 0;
        }

        .footer-bottom .footer-tech {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad-desktop: 72px;
            }

            section {
                padding: var(--section-pad-tablet) 0;
            }

            .hero-title {
                font-size: 34px;
            }

            .section-title {
                font-size: 26px;
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .timeline-wrap::before {
                left: 22px;
                transform: none;
            }

            .timeline-item {
                grid-template-columns: 32px 1fr;
                gap: 12px;
            }

            .timeline-item .tl-dot {
                margin-left: 0;
                margin-right: 0;
            }

            .timeline-item .tl-content.left {
                text-align: left;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad-desktop: 56px;
            }

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

            .site-header {
                display: none;
                top: 10px;
            }

            .mobile-dock {
                display: block;
            }

            body {
                padding-bottom: 80px;
            }

            .hero-section {
                padding: 96px 0 48px;
            }

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

            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .hero-title {
                font-size: 28px;
            }

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

            .entry-grid {
                grid-template-columns: 1fr;
            }

            .entry-card {
                flex-direction: column;
            }

            .entry-card .entry-img {
                width: 100%;
                min-height: 160px;
                max-height: 200px;
            }

            .entry-card .entry-body {
                padding: 18px;
            }

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

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .scenario-img-card img {
                height: 240px;
            }

            .ranking-wrap {
                grid-template-columns: 1fr;
            }

            .ranking-featured img {
                height: 180px;
            }

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

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

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

            .form-card {
                padding: 24px 18px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-title {
                font-size: 24px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .stat-card {
                padding: 14px 12px;
            }

            .stat-card .stat-num {
                font-size: 24px;
            }

            .stat-card .stat-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }

            .section-desc {
                font-size: 14px;
            }

            .news-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }

            .news-item .news-date {
                width: 50px;
                font-size: 11px;
                padding: 6px 4px;
            }

            .news-item .news-date .d {
                font-size: 16px;
            }

            .news-item .news-tag {
                font-size: 11px;
                padding: 3px 10px;
            }

            .timeline-item {
                grid-template-columns: 24px 1fr;
                gap: 8px;
            }

            .timeline-item .tl-dot {
                width: 12px;
                height: 12px;
                border-width: 2px;
            }

            .timeline-item .tl-content {
                padding: 14px 16px;
            }

            .ranking-item {
                flex-wrap: wrap;
                padding: 10px 12px;
                gap: 10px;
            }

            .ranking-item .rank-img {
                width: 48px;
                height: 40px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #1F6F9F;
  --primary-dark: #185A85;
  --primary-light: #EAF2F8;
  --primary-fade: rgba(31, 111, 159, 0.12);
  --primary-fade-strong: rgba(31, 111, 159, 0.18);
  --bg: #F5F8FB;
  --bg-alt: #EEF4F9;
  --surface: #FFFFFF;
  --text-main: #1B2B3A;
  --text-secondary: #5C6F7E;
  --text-muted: #8A9AA8;
  --accent: #C59B6A;
  --border: #DCE6EE;
  --border-focus: rgba(31, 111, 159, 0.25);
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-card: 0 10px 30px rgba(28, 54, 80, 0.08);
  --shadow-card-hover: 0 18px 40px rgba(28, 54, 80, 0.16);
  --shadow-nav: 0 8px 28px rgba(28, 54, 80, 0.1);
  --shadow-btn: 0 6px 18px rgba(31, 111, 159, 0.22);
  --font-cn: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, sans-serif;
  --font-en: 'Inter', 'SF Pro Display', 'Segoe UI', sans-serif;
  --section-pad-desktop: 72px;
  --section-pad-tablet: 56px;
  --section-pad-mobile: 48px;
  --gap-xl: 32px;
  --gap-lg: 24px;
  --gap-md: 18px;
  --gap-sm: 12px;
  --gap-xs: 8px;
  --transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}
body {
  font-family: var(--font-cn);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
a:hover {
  color: var(--primary);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}
button:focus, input:focus, textarea:focus, select:focus {
  outline: none;
}
section {
  position: relative;
  padding: var(--section-pad-desktop) 0;
}
.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}
.container-narrow {
  max-width: 960px;
  padding-left: 24px;
  padding-right: 24px;
  margin: 0 auto;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-fade);
  padding: 6px 16px;
  border-radius: var(--radius-btn);
  letter-spacing: 0.3px;
  margin-bottom: 16px;
  border: 1px solid rgba(31, 111, 159, 0.15);
}
.section-label .accent-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.2px;
}
.section-title .highlight {
  color: var(--primary);
  position: relative;
}
.section-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--primary-fade);
  border-radius: 3px;
  z-index: -1;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 720px;
}
.section-desc-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-head-center {
  text-align: center;
}
.section-head-center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ========== NAVIGATION ========== */
.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1050;
  width: min(1200px, calc(100% - 32px));
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(220, 230, 238, 0.7);
  border-radius: var(--radius-btn);
  box-shadow: var(--shadow-nav);
  padding: 8px 20px;
  transition: var(--transition);
}
.site-header .navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.navbar-brand-custom {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.2px;
}
.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.brand-short {
  display: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}
.navbar-menu {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 12px;
}
.navbar-menu li {
  display: flex;
  align-items: center;
}
.nav-separator {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}
.nav-link-custom {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-btn);
  transition: var(--transition);
}
.nav-link-custom:hover {
  color: var(--primary);
  background: var(--primary-fade);
}
.nav-link-custom.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.nav-cta-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-search-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}
.nav-search-btn:hover {
  color: var(--primary);
  border-color: var(--primary-fade);
  background: var(--primary-light);
}
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-btn);
}
.btn-primary-custom:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-primary-custom:focus {
  box-shadow: 0 0 0 4px var(--border-focus);
}
.btn-secondary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-secondary-custom:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}
/* mobile bottom dock */
.mobile-dock {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1040;
  width: min(92%, 420px);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(220, 230, 238, 0.7);
  border-radius: var(--radius-btn);
  box-shadow: 0 12px 30px rgba(28, 54, 80, 0.16);
  padding: 8px;
}
.mobile-dock ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: space-around;
}
.mobile-dock li a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: var(--radius-btn);
}
.mobile-dock li a.active {
  color: var(--primary);
  background: var(--primary-light);
}

/* ========== CATEGORY HERO ========== */
.category-hero {
  background: var(--primary-light);
  padding-top: 140px;
  padding-bottom: 72px;
  overflow: hidden;
}
.category-hero .hero-grid {
  display: flex;
  align-items: center;
  gap: 48px;
}
.category-hero .hero-copy {
  flex: 1;
}
.category-hero .hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.category-hero .hero-breadcrumb a {
  color: var(--primary);
}
.category-hero .hero-breadcrumb .sep {
  color: var(--text-muted);
}
.category-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 16px;
}
.category-hero h1 .highlight {
  color: var(--primary);
}
.category-hero .hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
}
.category-hero .hero-visual {
  flex-shrink: 0;
  width: 320px;
  height: 220px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
}
.category-hero .hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
}

/* ========== FILTER PILLS ========== */
.filter-section {
  background: var(--surface);
  padding: 40px 0;
}
.filter-pills-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}
.filter-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.filter-pill.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ========== LISTING ========== */
.listing-section {
  background: var(--bg);
}
.listing-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
}
.sidebar-filters {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.sidebar-filters h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}
.sidebar-filters ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-filters ul li {
  margin-bottom: 10px;
}
.sidebar-filters ul li a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.sidebar-filters ul li a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.sidebar-filters ul li a.active {
  color: var(--primary);
  background: var(--primary-fade);
  font-weight: 600;
}
.sidebar-filters ul li a i {
  font-size: 14px;
  width: 18px;
  color: var(--primary);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.listing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.listing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(31, 111, 159, 0.25);
}
.listing-card .card-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
}
.listing-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.listing-card:hover .card-cover img {
  transform: scale(1.03);
}
.listing-card .card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.listing-card .card-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.listing-card .card-tags span {
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-fade);
  padding: 4px 12px;
  border-radius: var(--radius-btn);
}
.listing-card .card-tags .tag-date {
  color: var(--text-muted);
  background: var(--bg-alt);
}
.listing-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text-main);
}
.listing-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.listing-card .card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.listing-card .card-link i {
  transition: transform 0.2s ease;
}
.listing-card .card-link:hover i {
  transform: translateX(4px);
}
.listing-more {
  margin-top: 32px;
  text-align: center;
}

/* ========== RANKING ========== */
.ranking-section {
  background: var(--surface);
}
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  transition: var(--transition);
}
.ranking-item:hover {
  background: var(--primary-light);
  border-color: var(--primary-fade);
}
.ranking-num {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  width: 48px;
  text-align: center;
  flex-shrink: 0;
}
.ranking-info {
  flex: 1;
}
.ranking-info h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}
.ranking-info .rank-tag {
  font-size: 12px;
  color: var(--text-muted);
}
.ranking-heat {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}

/* ========== TIMELINE ========== */
.timeline-section {
  background: var(--bg);
}
.timeline-wrapper {
  position: relative;
  padding-left: 32px;
}
.timeline-wrapper::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--primary-fade));
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 28px;
}
.timeline-item:last-child {
  margin-bottom: 0;
}
.timeline-dot {
  position: absolute;
  left: -28px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 1px var(--border);
}
.timeline-date {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}
.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}
.timeline-content h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

/* ========== TOPICS ========== */
.topics-section {
  background: var(--surface);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.topic-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}
.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--primary-fade);
}
.topic-card .topic-cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.topic-card .topic-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.topic-card:hover .topic-cover img {
  transform: scale(1.04);
}
.topic-card .topic-body {
  padding: 20px;
}
.topic-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.topic-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.topic-card a {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg);
}
.faq-list .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-card) !important;
  margin-bottom: 14px;
  background: #fff;
  overflow: hidden;
}
.faq-list .accordion-button {
  background: #fff;
  color: var(--text-main);
  font-weight: 600;
  font-size: 16px;
  padding: 18px 22px;
  border: none;
  outline: none;
  box-shadow: none;
  border-radius: var(--radius-card);
}
.faq-list .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.faq-list .accordion-button:focus {
  box-shadow: 0 0 0 3px var(--border-focus);
}
.faq-list .accordion-body {
  padding: 18px 22px;
  background: #fff;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
}

/* ========== SUBSCRIBE ========== */
.subscribe-section {
  background: var(--primary-light);
  padding: 56px 0;
}
.subscribe-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.subscribe-card .sub-title {
  flex: 1;
}
.subscribe-card h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.subscribe-card p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
}
.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.subscribe-form .form-control-custom {
  min-width: 240px;
  padding: 12px 18px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  background: #F7FAFC;
  color: var(--text-main);
  transition: var(--transition);
}
.subscribe-form .form-control-custom:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--border-focus);
  background: #fff;
}
.subscribe-form .btn-primary-custom {
  padding: 12px 24px;
  white-space: nowrap;
}

/* ========== FOOTER ========== */
.site-footer {
  background: #162633;
  color: #AEC0CF;
  padding: 56px 0 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand .brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.fb-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: #9FB2C1;
  line-height: 1.8;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: #AEC0CF;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom .copyright {
  font-size: 13px;
  color: #8EA2B3;
  margin: 0;
}
.footer-bottom .footer-tech {
  font-size: 13px;
  color: #8EA2B3;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991.98px) {
  .site-header {
    width: calc(100% - 28px);
    padding: 8px 16px;
  }
  .navbar-menu {
    display: none;
  }
  .brand-sub {
    display: none;
  }
  .brand-name {
    font-size: 16px;
  }
  .category-hero .hero-grid {
    flex-direction: column;
    gap: 28px;
    align-items: flex-start;
  }
  .category-hero .hero-visual {
    width: 100%;
    height: 220px;
  }
  .listing-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .sidebar-filters {
    padding: 20px;
  }
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}
@media (max-width: 767.98px) {
  .site-header {
    top: auto;
    bottom: 16px;
    transform: none;
    left: 50%;
    transform: translateX(-50%);
    width: min(92%, 420px);
    border-radius: var(--radius-btn);
    padding: 6px;
  }
  .site-header .navbar-inner {
    justify-content: space-between;
  }
  .navbar-brand-custom .brand-name {
    display: none;
  }
  .brand-short {
    display: inline;
  }
  .navbar-brand-custom .brand-sub {
    display: none;
  }
  .nav-cta-wrap .nav-search-btn {
    display: none;
  }
  .nav-cta-wrap .btn-primary-custom {
    padding: 8px 16px;
    font-size: 13px;
  }
  .navbar-menu {
    display: none;
  }
  .mobile-dock {
    display: block;
    bottom: 76px;
  }
  section {
    padding: var(--section-pad-mobile) 0;
  }
  .category-hero {
    padding-top: 100px;
    padding-bottom: 48px;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .filter-pills-wrapper {
    gap: 8px;
  }
  .filter-pill {
    padding: 8px 16px;
    font-size: 13px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .subscribe-card {
    flex-direction: column;
    align-items: stretch;
    padding: 28px;
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-form .form-control-custom {
    width: 100%;
    min-width: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 575.98px) {
  .container, .container-narrow {
    padding-left: 16px;
    padding-right: 16px;
  }
  .section-title {
    font-size: 24px;
  }
  .category-hero h1 {
    font-size: 24px;
  }
  .ranking-item {
    padding: 14px 16px;
    gap: 12px;
  }
  .ranking-num {
    font-size: 24px;
    width: 40px;
  }
  .timeline-wrapper {
    padding-left: 24px;
  }
  .timeline-dot {
    left: -22px;
  }
}