/* roulang page: index */
:root {
            --primary: #2D6CDF;
            --primary-dark: #1F5ACB;
            --primary-light: #E8F0FE;
            --deep: #0F2B52;
            --deep-2: #1A3E6E;
            --bg-light: #F0F4F8;
            --bg-white: #FFFFFF;
            --gold: #C9A96A;
            --gold-light: #E8D9BC;
            --text-main: #22344A;
            --text-body: #33475B;
            --text-muted: #6B7A8F;
            --border: #E6EDF5;
            --success: #1FA971;
            --warning: #C0563B;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-tag: 8px;
            --radius-input: 10px;
            --shadow-card: 0 4px 20px rgba(15,43,82,0.06);
            --shadow-card-hover: 0 12px 32px rgba(15,43,82,0.12);
            --transition: 200ms ease;
            --font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container-main { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 575px) {
            .container-main { padding: 0 16px; }
        }
        .section-space { padding: 72px 0; }
        @media (max-width: 767px) {
            .section-space { padding: 48px 0; }
        }
        .section-heading { margin-bottom: 40px; }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .gold-line {
            width: 48px;
            height: 3px;
            background: var(--gold);
            border-radius: 4px;
            margin-bottom: 16px;
        }
        .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
        }
        .btn-primary-custom {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
            border: 1px solid var(--primary);
        }
        .btn-primary-custom:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
        .btn-primary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-secondary-custom {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
        }
        .btn-secondary-custom:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
        .btn-secondary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-gold-outline {
            display: inline-block;
            background: transparent;
            color: var(--gold);
            border: 1px solid var(--gold);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
        }
        .btn-gold-outline:hover { background: var(--gold); color: #fff; transform: translateY(-2px); }
        .bg-light-gray { background: var(--bg-light); }
        .bg-deep { background: var(--deep); }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .card-base:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        /* Top Bar */
        .topbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .topbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .topbar-logo span {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep);
            letter-spacing: 0.5px;
        }
        .topbar-logo:hover span { color: var(--primary); }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn .bar {
            width: 27px;
            height: 2.5px;
            background: var(--deep);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .hamburger-btn:hover .bar { background: var(--primary); }
        .hamburger-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
        .topbar-cta {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            border: 1px solid var(--primary);
            transition: all var(--transition);
        }
        .topbar-cta:hover { background: var(--primary-dark); color: #fff; }
        .topbar-cta:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        @media (max-width: 575px) {
            .topbar-cta { padding: 6px 14px; font-size: 13px; }
            .topbar-logo span { font-size: 17px; }
        }
        /* Side Drawer */
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 1060;
            opacity: 0;
            visibility: hidden;
            transition: all 300ms ease;
        }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .side-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 360px;
            max-width: 85vw;
            height: 100vh;
            background: var(--deep);
            z-index: 1070;
            transform: translateX(-100%);
            transition: transform 300ms ease;
            display: flex;
            flex-direction: column;
        }
        .side-drawer.active { transform: translateX(0); }
        .drawer-header {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            border-bottom: 1px solid rgba(201,169,106,0.3);
            flex-shrink: 0;
        }
        .drawer-logo {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .drawer-close {
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            transition: color var(--transition);
        }
        .drawer-close:hover { color: var(--gold); }
        .drawer-close:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 6px; }
        .drawer-nav {
            flex: 1;
            overflow-y: auto;
            padding: 24px 0;
        }
        .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 24px;
            color: #fff;
            font-size: 16px;
            font-weight: 500;
            text-decoration: none;
            border-left: 3px solid transparent;
            transition: all var(--transition);
        }
        .drawer-nav a:hover { background: rgba(255,255,255,0.06); border-left-color: var(--gold); color: #fff; }
        .drawer-nav a.active { background: rgba(255,255,255,0.06); border-left-color: var(--gold); }
        .drawer-nav a i { width: 24px; text-align: center; color: var(--gold); }
        .drawer-footer {
            padding: 20px 24px;
            border-top: 1px solid rgba(201,169,106,0.3);
            flex-shrink: 0;
        }
        .drawer-footer a {
            display: block;
            color: #fff;
            padding: 8px 0;
            font-size: 14px;
            text-decoration: none;
        }
        .drawer-footer a:hover { color: var(--gold); }
        .drawer-footer .drawer-contact { color: #C0CFE0; margin-bottom: 12px; font-size: 13px; }
        /* Hero Section */
        .hero-section {
            background: linear-gradient(135deg, #fff 0%, var(--bg-light) 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 500px;
            background: url('/assets/images/f90dbccb24a43533.jpg') no-repeat center/cover;
            opacity: 0.04;
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-left .hero-title {
            font-size: 38px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.35;
            margin-bottom: 20px;
        }
        .hero-left .hero-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 32px;
        }
        .hero-badge {
            background: #fff;
            border: 1px solid var(--gold);
            border-radius: var(--radius-tag);
            padding: 8px 16px;
            font-size: 13px;
            color: var(--deep);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 2px 8px rgba(15,43,82,0.06);
        }
        .hero-badge i { color: var(--gold); }
        .hero-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .portal-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }
        .portal-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .portal-card .portal-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 20px;
        }
        .portal-card .portal-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--deep);
        }
        @media (max-width: 991px) {
            .hero-grid { grid-template-columns: 1fr; gap: 32px; }
            .hero-left .hero-title { font-size: 30px; }
            .hero-right { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 767px) {
            .hero-right { grid-template-columns: repeat(2, 1fr); }
            .hero-left .hero-title { font-size: 26px; }
            .hero-left .hero-desc { font-size: 15px; }
        }
        @media (max-width: 575px) {
            .hero-left .hero-title { font-size: 22px; }
            .hero-right { grid-template-columns: 1fr 1fr; gap: 12px; }
            .portal-card { padding: 18px 14px; }
        }
        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            grid-column: span 2;
        }
        .case-card.wide { grid-column: span 3; }
        .case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .case-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .case-card.wide img { height: 260px; }
        .case-card-body { padding: 20px; }
        .case-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--deep);
            margin-bottom: 8px;
        }
        .case-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .case-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            margin-right: 8px;
        }
        .case-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
        }
        .case-link:hover { color: var(--primary-dark); }
        @media (max-width: 991px) {
            .case-card, .case-card.wide { grid-column: span 3; }
        }
        @media (max-width: 767px) {
            .case-card, .case-card.wide { grid-column: span 6; }
        }
        @media (max-width: 575px) {
            .case-grid { gap: 14px; }
        }
        /* Stat Blocks */
        .stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            position: relative;
        }
        .stat-item::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 3px;
            background: var(--gold);
            border-radius: 0 0 4px 4px;
        }
        .stat-number {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-unit { font-size: 15px; color: var(--primary); font-weight: 500; }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 767px) {
            .stat-row { grid-template-columns: repeat(2, 1fr); }
            .stat-number { font-size: 26px; }
        }
        /* Ability Matrix */
        .ability-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .ability-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition);
            grid-column: span 1;
            position: relative;
        }
        .ability-card.wide { grid-column: span 2; }
        .ability-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .ability-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }
        .ability-card h3 { font-size: 17px; font-weight: 600; color: var(--deep); margin-bottom: 8px; }
        .ability-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
        .ability-link { font-size: 13px; font-weight: 500; color: var(--primary); text-decoration: none; }
        .ability-link:hover { color: var(--primary-dark); }
        .ability-slot {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 28px;
            height: 28px;
            border: 1px solid var(--gold);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--gold);
            background: #fff;
        }
        @media (max-width: 991px) {
            .ability-card, .ability-card.wide { grid-column: span 2; }
        }
        @media (max-width: 575px) {
            .ability-card, .ability-card.wide { grid-column: span 4; }
        }
        /* Compare Section */
        .compare-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .compare-card {
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid var(--border);
            background: #fff;
        }
        .compare-card.legacy {
            background: #F8FAFC;
            border-color: #E6EDF5;
        }
        .compare-card.modern {
            background: var(--primary-light);
            border-color: var(--primary);
        }
        .compare-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .compare-card.legacy h3 { color: var(--text-muted); }
        .compare-card.modern h3 { color: var(--primary-dark); }
        .compare-card ul { list-style: none; padding: 0; margin: 0; }
        .compare-card ul li {
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .compare-card.legacy ul li i { color: var(--text-muted); }
        .compare-card.modern ul li i { color: var(--primary); }
        @media (max-width: 767px) {
            .compare-row { grid-template-columns: 1fr; }
        }
        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px 20px;
            text-align: center;
            position: relative;
        }
        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--deep);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto 12px;
            position: relative;
            z-index: 2;
        }
        .step-card::before {
            content: '';
            position: absolute;
            top: 44px;
            right: -18px;
            width: 36px;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
            z-index: 0;
        }
        .step-card:last-child::before { display: none; }
        .step-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--deep);
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 991px) {
            .steps-row { grid-template-columns: 1fr; gap: 12px; }
            .step-card::before { display: none; }
            .step-card { display: flex; align-items: center; text-align: left; gap: 16px; }
            .step-number { margin: 0; flex-shrink: 0; }
        }
        /* Sell Cards */
        .sell-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .sell-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 28px;
            text-align: center;
            transition: all var(--transition);
        }
        .sell-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .sell-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 14px;
        }
        .sell-card h3 { font-size: 19px; font-weight: 700; color: var(--deep); margin-bottom: 10px; }
        .sell-card p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }
        @media (max-width: 767px) {
            .sell-row { grid-template-columns: 1fr; }
        }
        /* News Section */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }
        .news-item:hover { background: var(--bg-light); box-shadow: var(--shadow-card); }
        .news-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--deep);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-meta .news-tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
        }
        .news-empty {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
        }
        .news-empty i {
            font-size: 36px;
            display: block;
            margin-bottom: 16px;
            color: #C0CFE0;
        }
        @media (max-width: 767px) {
            .news-layout { grid-template-columns: 1fr; }
        }
        /* Review Bubbles */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-bubble {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            position: relative;
        }
        .review-bubble::before {
            content: '\201C';
            font-size: 40px;
            color: var(--gold);
            line-height: 1;
            display: block;
            margin-bottom: 8px;
        }
        .review-bubble p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .review-author span {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }
        @media (max-width: 767px) {
            .review-grid { grid-template-columns: 1fr; }
        }
        /* Partner Logos */
        .partner-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .partner-item {
            background: #F8FAFC;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px 28px;
            font-size: 14px;
            color: #9AABBD;
            font-weight: 500;
            text-align: center;
            transition: all var(--transition);
            text-decoration: none;
            min-width: 140px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .partner-item:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }
        /* Resource Cards */
        .resource-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .resource-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }
        .resource-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .resource-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 12px;
        }
        .resource-card h4 { font-size: 15px; font-weight: 600; color: var(--deep); margin-bottom: 6px; }
        .resource-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 0; }
        @media (max-width: 991px) {
            .resource-row { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 575px) {
            .resource-row { grid-template-columns: 1fr; }
        }
        /* Media Scroll */
        .media-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .media-scroll::-webkit-scrollbar { height: 6px; }
        .media-scroll::-webkit-scrollbar-thumb { background: #C0CFE0; border-radius: 3px; }
        .media-card {
            flex: 0 0 280px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            scroll-snap-align: start;
            transition: all var(--transition);
        }
        .media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .media-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .media-card-body { padding: 16px; }
        .media-card-body h4 { font-size: 15px; font-weight: 600; color: var(--deep); margin-bottom: 6px; }
        .media-card-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--deep);
            transition: all var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: var(--bg-light); }
        .faq-question .faq-indicator {
            width: 12px;
            height: 12px;
            background: var(--gold);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question { border-left: 3px solid var(--primary); }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 300ms ease;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer { padding: 0 20px 16px; max-height: 300px; }
        /* Guarantee */
        .guarantee-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .guarantee-item {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            color: #fff;
            transition: all var(--transition);
        }
        .guarantee-item:hover { background: rgba(255,255,255,0.12); }
        .guarantee-icon {
            font-size: 24px;
            color: var(--gold);
            margin-bottom: 10px;
        }
        .guarantee-item span {
            font-size: 14px;
            font-weight: 500;
            display: block;
            line-height: 1.5;
        }
        @media (max-width: 991px) {
            .guarantee-row { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 575px) {
            .guarantee-row { grid-template-columns: 1fr; }
        }
        /* Contact Section */
        .contact-section {
            background: var(--deep);
            padding: 72px 0;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .contact-info h3 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .contact-info p {
            color: #C0CFE0;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .contact-list li {
            color: #fff;
            padding: 8px 0;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .contact-list li i { color: var(--gold); width: 20px; text-align: center; }
        .contact-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.15);
        }
        .contact-form-card h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 20px;
        }
        .form-control-custom {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text-body);
            background: #fff;
            transition: border-color var(--transition);
            margin-bottom: 14px;
        }
        .form-control-custom:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(45,108,223,0.12);
        }
        .form-control-custom::placeholder { color: #A0B0C4; }
        textarea.form-control-custom { min-height: 100px; resize: vertical; }
        .btn-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            padding: 13px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-submit:hover { background: var(--primary-dark); transform: translateY(-2px); }
        @media (max-width: 767px) {
            .contact-grid { grid-template-columns: 1fr; gap: 32px; }
        }
        /* Footer */
        .site-footer {
            background: #0A1F3D;
            color: #C0CFE0;
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #C0CFE0;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: #C0CFE0;
            font-size: 14px;
            padding: 6px 0;
            text-decoration: none;
            transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--gold); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            font-size: 13px;
            color: #9AABBD;
            text-align: center;
        }
        @media (max-width: 767px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        }
        /* Utility */
        .text-primary-custom { color: var(--primary); }
        .text-deep { color: var(--deep); }
        .mb-0 { margin-bottom: 0; }
        .w-100 { width: 100%; }
        .d-flex { display: flex; }
        .align-items-center { align-items: center; }
        .gap-2 { gap: 8px; }

/* roulang page: article */
:root {
            --primary: #2D6CDF;
            --primary-dark: #1F5ACB;
            --primary-light: #E8F0FE;
            --deep: #0F2B52;
            --deep-2: #1A3E6E;
            --bg-light: #F0F4F8;
            --bg-white: #FFFFFF;
            --gold: #C9A96A;
            --gold-light: #E8D9BC;
            --text-main: #22344A;
            --text-body: #33475B;
            --text-muted: #6B7A8F;
            --border: #E6EDF5;
            --success: #1FA971;
            --warning: #C0563B;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-tag: 8px;
            --radius-input: 10px;
            --shadow-card: 0 4px 20px rgba(15,43,82,0.06);
            --shadow-card-hover: 0 12px 32px rgba(15,43,82,0.12);
            --transition: 200ms ease;
            --font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container-main { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 820px; margin: 0 auto; padding: 0 24px; }
        .section-space { padding: 72px 0; }
        .section-heading { margin-bottom: 40px; }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
        }
        .btn-primary-custom {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
            border: 1px solid var(--primary);
        }
        .btn-primary-custom:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
        .btn-primary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-secondary-custom {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
        }
        .btn-secondary-custom:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
        .btn-secondary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-gold-outline {
            display: inline-block;
            background: transparent;
            color: var(--gold);
            border: 1px solid var(--gold);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
        }
        .btn-gold-outline:hover { background: var(--gold); color: #fff; transform: translateY(-2px); }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .card-base:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }

        /* Top Bar */
        .topbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .topbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .topbar-logo span {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep);
            letter-spacing: 0.5px;
        }
        .topbar-logo:hover span { color: var(--primary); }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn .bar {
            width: 27px;
            height: 2.5px;
            background: var(--deep);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .hamburger-btn:hover .bar { background: var(--primary); }
        .hamburger-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
        .topbar-cta {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--primary);
            transition: all var(--transition);
        }
        .topbar-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }
        .topbar-cta:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

        /* Side Drawer */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15,43,82,0.5);
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition), visibility var(--transition);
        }
        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .side-drawer {
            position: fixed;
            top: 0;
            left: -360px;
            width: 360px;
            max-width: 100%;
            height: 100%;
            background: var(--deep);
            color: #fff;
            z-index: 2100;
            transition: left var(--transition);
            display: flex;
            flex-direction: column;
        }
        .side-drawer.active { left: 0; }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            border-bottom: 1px solid var(--gold);
            min-height: 80px;
        }
        .drawer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .drawer-close {
            background: none;
            border: none;
            color: #fff;
            font-size: 28px;
            cursor: pointer;
            padding: 4px 8px;
            transition: color var(--transition);
        }
        .drawer-close:hover { color: var(--gold); }
        .drawer-close:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 4px; }
        .drawer-nav {
            flex: 1;
            padding: 20px 0;
            overflow-y: auto;
        }
        .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 24px;
            color: rgba(255,255,255,0.9);
            font-size: 16px;
            font-weight: 500;
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .drawer-nav a i {
            width: 24px;
            text-align: center;
            font-size: 18px;
        }
        .drawer-nav a:hover {
            background: rgba(255,255,255,0.06);
            color: #fff;
        }
        .drawer-nav a.active {
            border-left: 3px solid var(--gold);
            background: rgba(201,169,106,0.08);
            color: #fff;
        }
        .drawer-footer {
            padding: 20px 24px;
            border-top: 1px solid rgba(255,255,255,0.1);
            background: rgba(0,0,0,0.2);
        }
        .drawer-contact {
            font-size: 13px;
            color: var(--gold-light);
            margin-bottom: 12px;
        }
        .drawer-footer a {
            display: block;
            color: #fff;
            margin-bottom: 8px;
            font-size: 14px;
        }
        .drawer-footer a i { margin-right: 8px; }
        .drawer-footer a:hover { color: var(--gold); }

        /* Article Header */
        .article-header-section {
            background: var(--bg-light);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-custom {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-custom a:hover { color: var(--primary); }
        .breadcrumb-custom .separator { color: #B0BECD; }
        .article-title-h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i { color: var(--primary); }
        .article-gold-line {
            width: 80px;
            height: 3px;
            background: var(--gold);
            margin-top: 20px;
            border-radius: 2px;
        }

        /* Article Body */
        .article-body-section {
            background: #fff;
            padding: 48px 0 60px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--deep);
            margin: 24px 0 16px;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--deep);
            margin: 20px 0 12px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul, .article-content ol {
            margin: 0 0 20px 0;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-light);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 8px;
            color: var(--text-main);
        }
        .article-content img {
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }
        .article-content code {
            background: #F4F7FA;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: #C0563B;
        }
        .article-content pre {
            background: #0F2B52;
            color: #EAEDF2;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 20px 0;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-card);
        }
        .article-not-found p {
            font-size: 20px;
            font-weight: 600;
            color: var(--deep);
            margin-bottom: 20px;
        }
        .btn-home {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-home:hover { background: var(--primary-dark); color: #fff; }

        /* Prev Next */
        .prev-next-section {
            background: var(--bg-light);
            padding: 40px 0;
        }
        .prev-next-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .prev-next-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .prev-next-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .prev-next-label {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
        }
        .prev-next-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--deep);
            line-height: 1.5;
        }
        .prev-next-title a {
            color: var(--deep);
            text-decoration: none;
        }
        .prev-next-title a:hover { color: var(--primary); }

        /* Related */
        .related-section {
            background: #fff;
            padding: 60px 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px;
        }
        .related-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--deep);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .related-card-title a {
            color: var(--deep);
            text-decoration: none;
        }
        .related-card-title a:hover { color: var(--primary); }
        .related-card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
        }

        /* Subscribe CTA */
        .subscribe-section {
            background: var(--deep);
            padding: 60px 0;
        }
        .subscribe-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .subscribe-text {
            flex: 1;
            min-width: 280px;
        }
        .subscribe-text h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .subscribe-text p {
            color: rgba(255,255,255,0.8);
            font-size: 15px;
            margin-bottom: 0;
        }
        .subscribe-form {
            flex: 1;
            min-width: 300px;
            display: flex;
            gap: 12px;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 14px 20px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.1);
            color: #fff;
            outline: none;
            transition: border-color var(--transition);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255,255,255,0.6);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--gold);
        }
        .subscribe-form button {
            background: var(--gold);
            border: none;
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
        }
        .subscribe-form button:hover {
            background: var(--gold-light);
            color: var(--deep);
            transform: translateY(-2px);
        }

        /* Toolbar */
        .toolbar-section {
            background: var(--bg-light);
            padding: 30px 0;
            border-top: 1px solid var(--border);
        }
        .toolbar-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }
        .toolbar-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--deep);
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
        }
        .toolbar-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .toolbar-btn i {
            font-size: 16px;
        }

        /* Return entry */
        .return-entry-section {
            background: #fff;
            padding: 40px 0;
        }
        .return-entry-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-outline-light-custom {
            display: inline-block;
            background: transparent;
            color: var(--deep);
            border: 1px solid var(--border);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
        }
        .btn-outline-light-custom:hover {
            background: var(--bg-light);
            color: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline-light-custom i {
            margin-right: 8px;
        }

        /* Footer */
        .site-footer {
            background: var(--deep);
            color: #fff;
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: rgba(255,255,255,0.8);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--gold-light);
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.8);
            margin-bottom: 10px;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }
        .footer-col a:hover {
            color: var(--gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 20px 0;
            text-align: center;
            color: rgba(255,255,255,0.6);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767.98px) {
            .container-main, .container-narrow { padding: 0 16px; }
            .section-space { padding: 48px 0; }
            .article-title-h1 { font-size: 28px; }
            .prev-next-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .topbar-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .topbar-logo span { font-size: 18px; }
            .article-title-h1 { font-size: 24px; }
            .article-meta {
                gap: 12px;
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2D6CDF;
            --primary-dark: #1F5ACB;
            --primary-light: #E8F0FE;
            --deep: #0F2B52;
            --deep-2: #1A3E6E;
            --bg-light: #F0F4F8;
            --bg-white: #FFFFFF;
            --gold: #C9A96A;
            --gold-light: #E8D9BC;
            --text-main: #22344A;
            --text-body: #33475B;
            --text-muted: #6B7A8F;
            --border: #E6EDF5;
            --success: #1FA971;
            --warning: #C0563B;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-tag: 8px;
            --radius-input: 10px;
            --shadow-card: 0 4px 20px rgba(15, 43, 82, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(15, 43, 82, 0.12);
            --transition: 200ms ease;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container-main { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
        .section-space { padding: 72px 0; }
        .section-heading { margin-bottom: 40px; }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
        }
        .btn-primary-custom {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
        }
        .btn-primary-custom:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
        .btn-primary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-secondary-custom {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
        }
        .btn-secondary-custom:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
        .btn-secondary-custom:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        .btn-gold-outline {
            display: inline-block;
            background: transparent;
            color: var(--gold);
            border: 1px solid var(--gold);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
        }
        .btn-gold-outline:hover { background: var(--gold); color: #fff; transform: translateY(-2px); }
        .card-base {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .card-base:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }

        /* Top Bar */
        .topbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            box-shadow: 0 1px 6px rgba(15, 43, 82, 0.04);
        }
        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .topbar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .topbar-logo span {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .topbar-logo:hover span { color: var(--primary); }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn .bar {
            width: 27px;
            height: 2.5px;
            background: var(--deep);
            border-radius: 3px;
            transition: all var(--transition);
        }
        .hamburger-btn:hover .bar { background: var(--primary); }
        .hamburger-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
        .topbar-cta {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .topbar-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-card); }
        .topbar-cta:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

        /* Side Drawer */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 43, 82, 0.45);
            z-index: 1090;
            opacity: 0;
            visibility: hidden;
            transition: all 300ms ease;
        }
        .drawer-overlay.active { opacity: 1; visibility: visible; }
        .side-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 360px;
            max-width: 88vw;
            height: 100%;
            background: var(--deep);
            z-index: 1100;
            transform: translateX(-100%);
            transition: transform 300ms ease;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            box-shadow: 4px 0 40px rgba(15, 43, 82, 0.25);
        }
        .side-drawer.open { transform: translateX(0); }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            min-height: 80px;
            flex-shrink: 0;
        }
        .drawer-logo {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .drawer-close {
            background: none;
            border: none;
            color: #fff;
            font-size: 32px;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
            transition: color var(--transition);
        }
        .drawer-close:hover { color: var(--gold); }
        .drawer-close:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; border-radius: 6px; }
        .drawer-nav {
            flex: 1;
            padding: 16px 0;
        }
        .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 24px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition);
            border-left: 3px solid transparent;
            position: relative;
        }
        .drawer-nav a i {
            width: 24px;
            text-align: center;
            font-size: 18px;
            color: var(--gold-light);
        }
        .drawer-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .drawer-nav a.active {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-left-color: var(--gold);
        }
        .drawer-nav a.active i { color: var(--gold); }
        .drawer-footer {
            padding: 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            flex-shrink: 0;
        }
        .drawer-contact {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }
        .drawer-footer a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            padding: 6px 0;
            transition: color var(--transition);
        }
        .drawer-footer a:hover { color: var(--gold); }
        .drawer-footer a i { width: 20px; text-align: center; }

        /* Category Banner */
        .category-banner {
            background: linear-gradient(135deg, #F0F4F8 0%, #E8F0FE 55%, #FFFFFF 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/f90dbccb24a43533.jpg') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .category-banner .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .category-banner .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .category-banner .breadcrumb-nav a:hover { color: var(--primary); }
        .category-banner .breadcrumb-nav .separator { color: #B0BEC9; }
        .category-banner .breadcrumb-nav .current { color: var(--primary); font-weight: 500; }
        .category-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--deep);
            line-height: 1.35;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .category-banner .banner-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
            margin-bottom: 0;
        }

        /* Category Intro */
        .cat-intro-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cat-intro-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--deep);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .cat-intro-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .cat-intro-text p:last-child { margin-bottom: 0; }
        .cat-intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .cat-intro-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* Static List Cards */
        .cat-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .cat-list-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cat-list-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .cat-list-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .cat-list-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 300ms ease;
        }
        .cat-list-card:hover .card-img-wrap img { transform: scale(1.04); }
        .cat-list-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cat-list-card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .cat-list-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .cat-list-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .cat-list-card .card-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            align-self: flex-start;
        }
        .cat-list-card .card-link:hover { color: var(--primary-dark); gap: 10px; }
        .list-more-btn-wrap {
            text-align: center;
            margin-top: 36px;
        }

        /* Stats */
        .cat-stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cat-stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .cat-stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--gold));
            opacity: 0.7;
        }
        .cat-stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .cat-stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .cat-stat-number .unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-muted);
            margin-left: 4px;
        }
        .cat-stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Resource Cards */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .resource-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 24px 20px;
            transition: all var(--transition);
            text-align: left;
        }
        .resource-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .resource-card .resource-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .resource-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .resource-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            gap: 12px;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
            border-left: 2px solid var(--primary);
        }
        .faq-accordion .accordion-button:focus {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            display: none;
        }
        .faq-accordion .accordion-button .faq-icon {
            width: 24px;
            height: 24px;
            background: var(--gold-light);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--gold);
            flex-shrink: 0;
        }
        .faq-accordion .accordion-button .faq-arrow {
            margin-left: auto;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed) .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-accordion .accordion-body {
            padding: 16px 20px 20px 56px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.85;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/9627838fa409ff53.webp') center/cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-gold-outline {
            position: relative;
            z-index: 1;
            color: var(--gold);
            border-color: var(--gold);
            font-size: 16px;
            padding: 13px 32px;
        }
        .cta-section .btn-gold-outline:hover { background: var(--gold); color: #fff; }

        /* Footer */
        .site-footer {
            background: var(--deep);
            color: rgba(255, 255, 255, 0.85);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            padding: 6px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--gold); }
        .footer-col a i { width: 18px; text-align: center; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* Responsive */
        @media (min-width: 768px) {
            .container-main { padding: 0 24px; }
            .section-space { padding: 72px 0; }
        }
        @media (min-width: 1200px) {
            .section-space { padding: 80px 0; }
        }
        @media (max-width: 991px) {
            .cat-intro-wrapper { grid-template-columns: 1fr; gap: 32px; }
            .cat-intro-image img { height: 220px; }
            .cat-list-grid { grid-template-columns: 1fr 1fr; }
            .resource-grid { grid-template-columns: 1fr 1fr; }
            .section-title { font-size: 24px; }
            .category-banner h1 { font-size: 26px; }
        }
        @media (max-width: 767px) {
            .section-space { padding: 48px 0; }
            .cat-list-grid { grid-template-columns: 1fr; }
            .cat-stats-grid { grid-template-columns: 1fr 1fr; }
            .cat-stat-card:last-child { grid-column: span 2; }
            .resource-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .category-banner { padding: 36px 0 32px; min-height: auto; }
            .category-banner h1 { font-size: 22px; }
            .category-banner .banner-desc { font-size: 14px; }
            .topbar-cta { padding: 7px 14px; font-size: 13px; }
            .topbar-logo span { font-size: 16px; }
            .cta-section h2 { font-size: 22px; }
            .faq-accordion .accordion-body { padding: 14px 16px 18px 16px; }
        }
        @media (max-width: 520px) {
            .topbar { height: 56px; }
            .topbar-logo span { font-size: 14px; letter-spacing: 0; }
            .topbar-cta { padding: 6px 12px; font-size: 12px; }
            .hamburger-btn .bar { width: 22px; }
            .cat-stats-grid { grid-template-columns: 1fr; gap: 16px; }
            .cat-stat-card:last-child { grid-column: auto; }
            .cat-stat-number { font-size: 32px; }
            .resource-grid { grid-template-columns: 1fr; }
            .section-title { font-size: 21px; }
            .category-banner h1 { font-size: 19px; }
            .cat-intro-image img { height: 180px; }
            .cat-list-card .card-img-wrap { height: 160px; }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}