/* roulang page: index */
:root {
            --primary: #0B1E3B;
            --primary-light: #1A3560;
            --primary-dark: #060F20;
            --accent: #00D4FF;
            --accent-glow: rgba(0, 212, 255, 0.45);
            --accent-soft: rgba(0, 212, 255, 0.08);
            --surface: #FFFFFF;
            --surface-alt: #F7F9FC;
            --surface-dark: #0B1220;
            --text-primary: #1A1A2E;
            --text-secondary: #4A5B72;
            --text-muted: #7A8BA3;
            --text-on-dark: #FFFFFF;
            --text-on-accent: #0B1E3B;
            --border: #E5EAF2;
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(11, 30, 59, 0.06);
            --shadow-md: 0 4px 24px rgba(11, 30, 59, 0.08);
            --shadow-lg: 0 12px 48px rgba(11, 30, 59, 0.12);
            --shadow-glow: 0 0 32px rgba(0, 212, 255, 0.25);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--surface-alt);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        a:focus,
        button:focus,
        input:focus,
        textarea:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        p {
            margin: 0 0 1em;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }

        /* ========== NAVBAR ========== */
        .site-navbar {
            background: var(--surface-dark);
            border-bottom: 2px solid rgba(0, 212, 255, 0.25);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.28);
        }

        .site-navbar .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 4px 0;
        }

        .site-navbar .navbar-brand:hover {
            color: var(--accent);
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent) 0%, #0090FF 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text-on-dark);
            flex-shrink: 0;
            box-shadow: 0 0 16px var(--accent-glow);
        }

        .site-navbar .nav-link {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .site-navbar .nav-link:hover {
            color: var(--text-on-dark);
            background: rgba(255, 255, 255, 0.06);
        }

        .site-navbar .nav-link.active {
            color: var(--accent);
            background: rgba(0, 212, 255, 0.1);
            text-shadow: 0 0 12px var(--accent-glow);
        }

        .site-navbar .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--accent-glow);
        }

        .nav-cta-btn {
            background: var(--accent);
            color: var(--text-on-accent) !important;
            font-weight: 600;
            padding: 8px 20px !important;
            border-radius: 24px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 0 20px var(--accent-glow);
        }

        .nav-cta-btn:hover {
            background: #00E5FF !important;
            box-shadow: 0 0 32px var(--accent-glow);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .site-navbar .navbar-collapse {
                background: var(--surface-dark);
                border-radius: var(--radius-md);
                padding: var(--spacing-sm);
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .site-navbar .nav-link.active::after {
                display: none;
            }
            .nav-cta-btn {
                display: inline-block;
                margin-top: 8px;
                text-align: center;
            }
        }

        /* ========== HERO ========== */
        .hero-coupon-wall {
            background-image: linear-gradient(135deg, rgba(6, 15, 32, 0.92) 0%, rgba(11, 30, 59, 0.88) 40%, rgba(11, 30, 59, 0.94) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            position: relative;
            color: var(--text-on-dark);
            min-height: 600px;
            display: flex;
            align-items: center;
        }

        .hero-coupon-wall::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent 0%, var(--accent) 40%, var(--accent) 60%, transparent 100%);
            opacity: 0.8;
        }

        .hero-coupon-wall .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-coupon-wall .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.12);
            border: 1px solid rgba(0, 212, 255, 0.35);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 24px;
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.04em;
        }

        .hero-coupon-wall h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }

        .hero-coupon-wall .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            margin-bottom: var(--spacing-lg);
            line-height: 1.8;
        }

        .hero-coupon-wall .hero-meta-stats {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
        }

        .hero-coupon-wall .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-coupon-wall .hero-stat .stat-number {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent);
            text-shadow: 0 0 16px var(--accent-glow);
        }

        .hero-coupon-wall .hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* Coupon Wall */
        .coupon-wall-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: var(--spacing-md);
            align-items: stretch;
        }

        .main-coupon {
            background: linear-gradient(135deg, #0B1E3B 0%, #16325B 50%, #0B1E3B 100%);
            border: 2px solid rgba(0, 212, 255, 0.4);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow);
            transition: var(--transition-slow);
            cursor: pointer;
        }

        .main-coupon::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .main-coupon::after {
            content: '';
            position: absolute;
            top: 16px;
            right: -20px;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--surface-dark);
            border: 2px dashed var(--accent);
            opacity: 0.5;
        }

        .main-coupon:hover {
            transform: translateY(-4px);
            box-shadow: 0 0 48px rgba(0, 212, 255, 0.35);
            border-color: var(--accent);
        }

        .main-coupon .coupon-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--text-on-accent);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: var(--spacing-sm);
        }

        .main-coupon .coupon-amount {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
            text-shadow: 0 0 24px var(--accent-glow);
        }

        .main-coupon .coupon-amount .currency {
            font-size: 1.4rem;
            vertical-align: top;
            font-weight: 600;
        }

        .main-coupon .coupon-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-on-dark);
            margin-bottom: 4px;
        }

        .main-coupon .coupon-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: var(--spacing-sm);
        }

        .main-coupon .coupon-code {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px dashed rgba(0, 212, 255, 0.5);
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-sm);
        }

        .main-coupon .btn-coupon {
            background: var(--accent);
            color: var(--text-on-accent);
            border: none;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 28px;
            transition: var(--transition);
            box-shadow: 0 0 24px var(--accent-glow);
            width: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .main-coupon .btn-coupon:hover {
            background: #00E5FF;
            transform: translateY(-2px);
            box-shadow: 0 0 36px var(--accent-glow);
        }

        .side-coupons {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .side-coupon {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            transition: var(--transition);
            cursor: pointer;
        }

        .side-coupon:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 212, 255, 0.4);
            transform: translateX(4px);
        }

        .side-coupon .sc-icon {
            width: 42px;
            height: 42px;
            min-width: 42px;
            border-radius: var(--radius-sm);
            background: rgba(0, 212, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
        }

        .side-coupon .sc-info {
            flex: 1;
            min-width: 0;
        }

        .side-coupon .sc-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-on-dark);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .side-coupon .sc-desc {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
        }

        .side-coupon .sc-btn {
            background: transparent;
            border: 1px solid rgba(0, 212, 255, 0.4);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 16px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .side-coupon .sc-btn:hover {
            background: var(--accent);
            color: var(--text-on-accent);
        }

        @media (max-width: 991.98px) {
            .coupon-wall-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .hero-coupon-wall {
                padding: var(--spacing-xl) 0 var(--spacing-lg);
                min-height: auto;
            }
            .main-coupon .coupon-amount {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-coupon-wall h1 {
                font-size: 1.5rem;
            }
            .hero-coupon-wall .hero-desc {
                font-size: 0.92rem;
            }
            .main-coupon {
                padding: var(--spacing-md);
            }
            .main-coupon .coupon-amount {
                font-size: 2.2rem;
            }
            .side-coupon {
                flex-wrap: wrap;
            }
            .side-coupon .sc-btn {
                width: 100%;
                text-align: center;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-block {
            padding: var(--spacing-xl) 0;
        }

        .section-block.section-alt {
            background: var(--surface);
        }

        .section-block.section-dark {
            background: var(--surface-dark);
            color: var(--text-on-dark);
        }

        .section-block.section-dark h2,
        .section-block.section-dark h3,
        .section-block.section-dark p {
            color: var(--text-on-dark);
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
        }

        .section-header .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-xs);
        }

        .section-header h2 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
            margin-bottom: var(--spacing-xs);
        }

        .section-header .section-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0;
        }

        .section-dark .section-header .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ========== PROGRESS SECTION ========== */
        .progress-section .progress-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: var(--transition);
        }

        .progress-section .progress-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .progress-card .pc-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .progress-card .pc-number .pc-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .progress-card .pc-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }

        .progress-card .progress {
            height: 8px;
            border-radius: 4px;
            background: #EDF1F7;
            overflow: hidden;
        }

        .progress-card .progress-bar {
            background: linear-gradient(90deg, var(--accent) 0%, #0090FF 100%);
            border-radius: 4px;
            transition: width 1.2s ease;
        }

        /* ========== TIER / REWARD SECTION ========== */
        .tier-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-lg);
            height: 100%;
            transition: var(--transition);
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .tier-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(0, 212, 255, 0.3);
        }

        .tier-card.tier-featured {
            background: linear-gradient(135deg, #0B1E3B 0%, #16325B 100%);
            border: 2px solid var(--accent);
            box-shadow: var(--shadow-glow);
            color: var(--text-on-dark);
        }

        .tier-card.tier-featured h3,
        .tier-card.tier-featured .tier-price,
        .tier-card.tier-featured ul li {
            color: var(--text-on-dark);
        }

        .tier-card .tier-flag {
            display: inline-block;
            background: var(--accent);
            color: var(--text-on-accent);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 14px;
            letter-spacing: 0.06em;
            margin-bottom: var(--spacing-sm);
        }

        .tier-card h3 {
            font-size: 1.15rem;
            margin-bottom: var(--spacing-xs);
        }

        .tier-card .tier-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: var(--spacing-sm);
        }

        .tier-card .tier-price .period {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .tier-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-md);
        }

        .tier-card ul li {
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .tier-card ul li i {
            color: var(--accent);
            margin-top: 4px;
            flex-shrink: 0;
        }

        .btn-tier {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            transition: var(--transition);
            width: 100%;
        }

        .btn-tier.btn-outline-tier {
            background: transparent;
            border: 1.5px solid var(--border);
            color: var(--text-primary);
        }

        .btn-tier.btn-outline-tier:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-soft);
        }

        .btn-tier.btn-solid-tier {
            background: var(--accent);
            color: var(--text-on-accent);
            box-shadow: 0 0 20px var(--accent-glow);
        }

        .btn-tier.btn-solid-tier:hover {
            background: #00E5FF;
            transform: translateY(-2px);
        }

        @media (max-width: 767.98px) {
            .tier-card {
                margin-bottom: var(--spacing-sm);
            }
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-section .compare-table-wrap {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .compare-table-wrap .table {
            margin: 0;
        }

        .compare-table-wrap .table thead th {
            background: var(--surface-dark);
            color: var(--text-on-dark);
            font-weight: 600;
            font-size: 0.88rem;
            padding: 14px 16px;
            border-bottom: none;
            white-space: nowrap;
        }

        .compare-table-wrap .table thead th.highlight-col {
            background: var(--primary-light);
            color: var(--accent);
            border-bottom: 2px solid var(--accent);
        }

        .compare-table-wrap .table tbody td {
            padding: 14px 16px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }

        .compare-table-wrap .table tbody td.highlight-col {
            background: rgba(0, 212, 255, 0.04);
            color: var(--text-primary);
            font-weight: 500;
        }

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

        .compare-check {
            color: #10B981;
            font-weight: 600;
        }

        .compare-cross {
            color: #EF4444;
            font-weight: 600;
        }

        .compare-partial {
            color: #F59E0B;
            font-weight: 600;
        }

        @media (max-width: 767.98px) {
            .compare-table-wrap {
                overflow-x: auto;
            }
            .compare-table-wrap .table {
                min-width: 560px;
            }
        }

        /* ========== SUPPORTERS WALL ========== */
        .supporter-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: 100%;
            transition: var(--transition);
        }

        .supporter-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .supporter-card .supporter-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: var(--spacing-sm);
        }

        .supporter-card .supporter-avatar {
            width: 44px;
            height: 44px;
            min-width: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .supporter-card .supporter-name {
            font-size: 0.92rem;
            font-weight: 600;
            margin: 0;
            color: var(--text-primary);
        }

        .supporter-card .supporter-location {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin: 0;
        }

        .supporter-card .supporter-quote {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .supporter-card .supporter-stars {
            color: #F59E0B;
            font-size: 0.78rem;
            margin-bottom: 6px;
        }

        /* ========== NEWS / INFO SECTION ========== */
        .news-section {
            background: var(--surface-alt);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: var(--spacing-lg);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
            transition: var(--transition);
            border: 1px solid transparent;
            margin-bottom: var(--spacing-xs);
        }

        .news-list-item:hover {
            border-color: rgba(0, 212, 255, 0.25);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .news-list-item .news-icon {
            width: 38px;
            height: 38px;
            min-width: 38px;
            border-radius: var(--radius-sm);
            background: var(--accent-soft);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

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

        .news-list-item .news-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .news-list-item .news-summary {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin: 0 0 4px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-list-item .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }

        .news-recommend {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .news-reco-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .news-reco-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-reco-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .news-reco-card .reco-body {
            padding: var(--spacing-sm) var(--spacing-md);
        }

        .news-reco-card .reco-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 2px 8px;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 4px;
        }

        .news-reco-card .reco-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.4;
        }

        @media (max-width: 991.98px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .news-reco-card img {
                height: 200px;
            }
        }

        /* ========== FAQ ========== */
        .faq-section .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: var(--spacing-xs);
            overflow: hidden;
            background: var(--surface);
            transition: var(--transition);
        }

        .faq-section .accordion-item:hover {
            border-color: rgba(0, 212, 255, 0.3);
        }

        .faq-section .accordion-button {
            background: var(--surface);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 16px 20px;
            border: none;
            transition: var(--transition);
        }

        .faq-section .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-section .accordion-button:focus {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
            box-shadow: none;
        }

        .faq-section .accordion-button::after {
            filter: brightness(0.4);
        }

        .faq-section .accordion-body {
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 16px 20px;
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background-image: linear-gradient(135deg, rgba(6, 15, 32, 0.94) 0%, rgba(11, 30, 59, 0.92) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-xl) 0;
            color: var(--text-on-dark);
            text-align: center;
        }

        .cta-section h2 {
            color: var(--text-on-dark);
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto var(--spacing-md);
            font-size: 0.95rem;
        }

        .cta-section .btn-cta-main {
            background: var(--accent);
            color: var(--text-on-accent);
            border: none;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: 32px;
            transition: var(--transition);
            box-shadow: 0 0 32px var(--accent-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .cta-section .btn-cta-main:hover {
            background: #00E5FF;
            transform: translateY(-3px);
            box-shadow: 0 0 48px var(--accent-glow);
        }

        .cta-section .cta-note {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: var(--spacing-sm);
            margin-bottom: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--surface-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            border-top: 2px solid rgba(0, 212, 255, 0.2);
        }

        .site-footer .footer-brand {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: var(--spacing-xs);
        }

        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 420px;
            line-height: 1.7;
            margin-bottom: var(--spacing-sm);
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .site-footer .footer-bottom {
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
        }

        @media (max-width: 575.98px) {
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== BACK TO TOP ========== */
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-on-dark);
            border: 2px solid rgba(0, 212, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            z-index: 900;
            opacity: 0;
            visibility: hidden;
            box-shadow: var(--shadow-md);
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }

/* 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}