/* roulang page: index */
:root {
            --color-primary: #2563EB;
            --color-primary-hover: #1D4ED8;
            --color-primary-light: #3B82F6;
            --color-primary-bg: #F0F4FF;
            --color-primary-border: #BFDBFE;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --color-accent: #F59E0B;
            --color-accent-light: #FEF3C7;
            --color-success: #10B981;
            --color-success-light: #D1FAE5;
            --color-danger: #EF4444;
            --color-danger-light: #FEE2E2;
            --color-footer-bg: #1E293B;
            --color-footer-text: #CBD5E1;
            --color-footer-link: #93C5FD;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
            --shadow-lg: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
            --shadow-xl: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.05);
            --shadow-card-hover: 0 8px 20px rgba(0,0,0,0.10), 0 3px 8px rgba(0,0,0,0.06);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-full: 9999px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', monospace;
            --container-max: 1200px;
            --container-padding: 20px;
            --nav-height: 64px;
            --bottom-tab-height: 56px;
            --section-gap: 80px;
            --section-gap-mobile: 60px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            padding-top: var(--nav-height);
            padding-bottom: 0;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        ul, ol {
            list-style: none;
        }

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

        h1 { font-size: 28px; }
        h2 { font-size: 22px; }
        h3 { font-size: 18px; }
        h4 { font-size: 16px; }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-primary);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: var(--color-primary-bg);
        }
        .header-nav a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            background: var(--color-surface);
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-bg);
            border-color: var(--color-primary-hover);
            color: var(--color-primary-hover);
        }
        .btn-lg {
            padding: 12px 30px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }
        .btn-xl {
            padding: 14px 36px;
            font-size: 17px;
            border-radius: var(--radius-md);
            letter-spacing: 0.01em;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #1E293B;
            box-shadow: var(--shadow-sm);
        }
        .btn-accent:hover {
            background: #E5980B;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #1E293B;
        }
        .btn-block {
            width: 100%;
            display: flex;
        }

        /* ========== BOTTOM TAB NAV (MOBILE) ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--bottom-tab-height);
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            box-shadow: 0 -2px 8px rgba(0,0,0,0.04);
        }
        .bottom-tab-nav .tab-list {
            display: flex;
            height: 100%;
            align-items: stretch;
        }
        .bottom-tab-nav .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 10px;
            color: var(--color-text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
            cursor: pointer;
            -webkit-tap-highlight-color: transparent;
        }
        .bottom-tab-nav .tab-item .tab-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            transition: color var(--transition-fast);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--color-primary);
        }
        .bottom-tab-nav .tab-item:hover {
            color: var(--color-primary);
        }
        .bottom-tab-nav .tab-item.publish-tab .tab-icon {
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            border-radius: 50%;
            color: #fff;
            font-size: 22px;
            margin-top: -14px;
            box-shadow: var(--shadow-md);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #1E3A5F 0%, #1a2744 30%, #162032 60%, #1a1f2e 100%);
            color: #fff;
            padding: 70px 0 80px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,39,68,0.7) 0%, rgba(22,32,50,0.85) 100%);
            z-index: 1;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .hero-content {
            flex: 1;
            min-width: 300px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(245,158,11,0.25);
            color: #FDE68A;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            border: 1px solid rgba(245,158,11,0.35);
        }
        .hero-badge .pulse-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #F59E0B;
            border-radius: 50%;
            margin-right: 6px;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .hero-section h1 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .hero-section h1 .highlight {
            color: #FDE68A;
            position: relative;
        }
        .hero-section .hero-desc {
            font-size: 16px;
            color: #CBD5E1;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-visual {
            flex: 0 0 340px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .progress-ring-card {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-xl);
            padding: 36px 30px;
            text-align: center;
            width: 100%;
        }
        .progress-ring-wrapper {
            position: relative;
            width: 180px;
            height: 180px;
            margin: 0 auto 20px;
        }
        .progress-ring {
            transform: rotate(-90deg);
            width: 180px;
            height: 180px;
        }
        .progress-ring .bg-circle {
            fill: none;
            stroke: rgba(255,255,255,0.15);
            stroke-width: 10;
        }
        .progress-ring .fg-circle {
            fill: none;
            stroke: #F59E0B;
            stroke-width: 10;
            stroke-linecap: round;
            transition: stroke-dashoffset 1.2s ease;
        }
        .progress-ring-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: #fff;
        }
        .progress-ring-text .percent {
            font-size: 42px;
            font-weight: 800;
            color: #FDE68A;
            line-height: 1;
        }
        .progress-ring-text .label {
            font-size: 13px;
            color: #CBD5E1;
            margin-top: 4px;
        }
        .progress-ring-card .progress-info {
            color: #CBD5E1;
            font-size: 14px;
            margin-bottom: 6px;
        }
        .progress-ring-card .progress-info strong {
            color: #fff;
            font-size: 18px;
        }
        .progress-ring-card .progress-deadline {
            font-size: 12px;
            color: #94A3B8;
            margin-top: 4px;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-tag {
            display: inline-block;
            background: var(--color-primary-bg);
            color: var(--color-primary);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        /* ========== METRICS ROW ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 0 0 2px 2px;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .metric-card .metric-label {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-top: 6px;
            font-weight: 500;
        }
        .metric-card .metric-sub {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* ========== TIER CARDS ========== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .tier-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-md);
            border: 1.5px solid var(--color-border);
            transition: all var(--transition-normal);
            position: relative;
            display: flex;
            flex-direction: column;
            text-align: center;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-primary-border);
        }
        .tier-card.featured {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-lg), 0 0 0 4px rgba(37,99,235,0.08);
            background: linear-gradient(180deg, #FAFCFE 0%, #F0F4FF 100%);
        }
        .tier-card.featured .tier-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #1E293B;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 700;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .tier-card .tier-icon {
            width: 50px;
            height: 50px;
            background: var(--color-primary-bg);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 24px;
            color: var(--color-primary);
        }
        .tier-card.featured .tier-icon {
            background: var(--color-primary);
            color: #fff;
        }
        .tier-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .tier-card .tier-price {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .tier-card .tier-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--color-text-muted);
        }
        .tier-card .tier-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            line-height: 1.5;
        }
        .tier-card .tier-features {
            text-align: left;
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 2;
            margin-bottom: 20px;
            flex: 1;
        }
        .tier-card .tier-features li::before {
            content: '✓ ';
            color: var(--color-success);
            font-weight: 700;
        }
        .tier-card .btn {
            margin-top: auto;
        }

        /* ========== SUPPORTER WALL ========== */
        .supporter-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            align-items: center;
        }
        .supporter-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #E2E8F0, #CBD5E1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-muted);
            border: 2px solid var(--color-surface);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            cursor: default;
            flex-shrink: 0;
        }
        .supporter-avatar:hover {
            transform: scale(1.1);
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-border);
            z-index: 2;
        }
        .supporter-more {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            cursor: pointer;
            border: 2px dashed var(--color-primary-border);
            transition: all var(--transition-normal);
        }
        .supporter-more:hover {
            background: var(--color-primary);
            color: #fff;
            border-style: solid;
        }
        .supporter-count {
            text-align: center;
            font-size: 15px;
            color: var(--color-text-muted);
            margin-top: 14px;
        }
        .supporter-count strong {
            color: var(--color-primary);
            font-size: 20px;
        }

        /* ========== COMPARISON ========== */
        .comparison-duo {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .comparison-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-md);
            border: 1.5px solid var(--color-border);
            transition: all var(--transition-normal);
        }
        .comparison-card.before {
            border-left: 4px solid #E2E8F0;
            background: #FAFAFA;
        }
        .comparison-card.after {
            border-left: 4px solid var(--color-primary);
            background: #FAFCFE;
        }
        .comparison-card h3 {
            font-size: 18px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-card.before h3 {
            color: var(--color-text-muted);
        }
        .comparison-card.after h3 {
            color: var(--color-primary);
        }
        .comparison-card ul {
            list-style: none;
            font-size: 14px;
            line-height: 2.2;
            color: var(--color-text-secondary);
        }
        .comparison-card.before ul li::before {
            content: '✗ ';
            color: #CBD5E1;
            font-weight: 700;
            margin-right: 4px;
        }
        .comparison-card.after ul li::before {
            content: '✓ ';
            color: var(--color-success);
            font-weight: 700;
            margin-right: 4px;
        }

        /* ========== NEWS LIST ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 30px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: inherit;
            align-items: flex-start;
        }
        .news-item:hover {
            background: #FAFBFC;
            padding-left: 8px;
            border-radius: var(--radius-sm);
            margin: 0 -8px;
            padding-right: 8px;
        }
        .news-item .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #E2E8F0;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-excerpt {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 6px;
            display: flex;
            gap: 12px;
        }
        .news-sidebar {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .news-sidebar h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-primary);
            display: inline-block;
        }
        .hot-list {
            list-style: none;
        }
        .hot-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 14px;
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list a {
            color: var(--color-text);
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-list a:hover {
            color: var(--color-primary);
        }
        .hot-list .rank-num {
            width: 22px;
            height: 22px;
            background: var(--color-primary-bg);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .hot-list li:nth-child(1) .rank-num,
        .hot-list li:nth-child(2) .rank-num,
        .hot-list li:nth-child(3) .rank-num {
            background: var(--color-accent);
            color: #fff;
        }

        /* ========== CALENDAR ========== */
        .calendar-strip {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding: 8px 0 16px;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
        }
        .calendar-strip::-webkit-scrollbar {
            height: 4px;
        }
        .calendar-strip::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 2px;
        }
        .calendar-day {
            flex: 0 0 100px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 14px 10px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1.5px solid var(--color-border-light);
            transition: all var(--transition-normal);
            cursor: default;
            min-width: 90px;
        }
        .calendar-day:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-border);
        }
        .calendar-day.today {
            border-color: var(--color-primary);
            background: var(--color-primary-bg);
        }
        .calendar-day .day-date {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
        }
        .calendar-day .day-week {
            font-size: 12px;
            color: var(--color-text-muted);
            margin: 2px 0;
        }
        .calendar-day .day-event {
            font-size: 11px;
            color: var(--color-primary);
            margin-top: 4px;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: background var(--transition-fast);
            border: none;
            background: none;
        }
        .faq-question:hover {
            background: #FAFBFC;
        }
        .faq-question .faq-dot {
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 50%;
            flex-shrink: 0;
            margin-right: 8px;
        }
        .faq-question .faq-arrow {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            color: var(--color-text-muted);
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            background: #FAFBFC;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 6px 20px 18px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #1a2744 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0 50px;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 26px;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section .cta-desc {
            color: #CBD5E1;
            font-size: 15px;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 180px;
            height: 44px;
            padding: 0 14px;
            border: 1.5px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.1);
            color: #fff;
            font-size: 15px;
            transition: all var(--transition-fast);
            backdrop-filter: blur(4px);
        }
        .cta-form input::placeholder {
            color: rgba(255,255,255,0.5);
        }
        .cta-form input:focus {
            outline: none;
            border-color: #FDE68A;
            background: rgba(255,255,255,0.18);
            box-shadow: 0 0 0 3px rgba(245,158,11,0.15);
        }
        .cta-form .btn {
            height: 44px;
            white-space: nowrap;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-footer-bg);
            color: var(--color-footer-text);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-col p,
        .footer-col li {
            font-size: 13px;
            line-height: 2;
            color: var(--color-footer-text);
        }
        .footer-col a {
            color: var(--color-footer-link);
            font-size: 13px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 12px;
            color: #94A3B8;
        }
        .footer-bottom a {
            color: var(--color-footer-link);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .tier-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
                order: -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section .container {
                gap: 30px;
            }
            .hero-visual {
                flex: 0 0 280px;
            }
            .hero-section h1 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 50px;
                --nav-height: 56px;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-header {
                height: 56px;
            }
            .header-nav {
                display: none;
            }
            .header-cta .btn-outline {
                display: none;
            }
            .header-cta .btn-primary {
                padding: 8px 16px;
                font-size: 13px;
            }
            .header-logo {
                font-size: 15px;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 16px;
            }
            .bottom-tab-nav {
                display: block;
            }
            .hero-section {
                padding: 40px 0 50px;
                min-height: auto;
            }
            .hero-section .container {
                flex-direction: column;
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 300px;
            }
            .hero-section h1 {
                font-size: 24px;
            }
            .hero-section .hero-desc {
                font-size: 14px;
            }
            .tier-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .tier-card {
                padding: 20px 14px;
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card {
                padding: 16px 12px;
            }
            .metric-card .metric-value {
                font-size: 26px;
            }
            .comparison-duo {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 160px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .calendar-strip {
                gap: 8px;
            }
            .calendar-day {
                flex: 0 0 80px;
                min-width: 70px;
                padding: 10px 6px;
            }
            .calendar-day .day-date {
                font-size: 18px;
            }
            .btn-xl {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card .metric-value {
                font-size: 22px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .progress-ring-wrapper {
                width: 140px;
                height: 140px;
            }
            .progress-ring {
                width: 140px;
                height: 140px;
            }
            .progress-ring-text .percent {
                font-size: 32px;
            }
            .hero-section h1 {
                font-size: 21px;
            }
            .section {
                padding: 40px 0;
            }
        }