/* roulang page: index */
:root {
            --bg-primary: #0a0e1a;
            --bg-secondary: #0b1020;
            --bg-nav: rgba(8, 12, 24, 0.8);
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-bg-strong: rgba(10, 30, 60, 0.3);
            --glass-border: rgba(255, 255, 255, 0.15);
            --text-primary: #ffffff;
            --text-heading: #e0f0ff;
            --text-body: #b0c8e0;
            --text-muted: #8a9bb5;
            --text-small: #6a7d96;
            --accent-blue: #00c8ff;
            --accent-blue-deep: #3b82f6;
            --accent-gold: #c9a050;
            --accent-purple: #8b5cf6;
            --glow-blue: rgba(0, 200, 255, 0.5);
            --glow-soft: rgba(0, 200, 255, 0.2);
            --radius-card: 20px;
            --radius-btn: 12px;
            --radius-sm: 10px;
            --nav-width: 220px;
            --section-gap: 88px;
            --card-gap: 24px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 40%, #0c1228 70%, var(--bg-primary) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        :focus-visible {
            outline: 2px solid var(--accent-blue);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ========== App Shell Layout ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ========== Left Sidebar Navigation ========== */
        .sidebar-nav {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--bg-nav);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid rgba(0, 200, 255, 0.2);
            box-shadow: 4px 0 30px rgba(0, 200, 255, 0.06);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 32px 18px 24px;
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .sidebar-logo {
            text-align: center;
            margin-bottom: 42px;
            padding: 0 6px;
        }

        .sidebar-logo .logo-main {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 1px;
            line-height: 1.4;
            text-shadow: 0 0 12px rgba(0, 200, 255, 0.35);
        }

        .sidebar-logo .logo-main span {
            color: var(--accent-blue);
        }

        .sidebar-logo .logo-sub {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 2px;
            margin-top: 6px;
            text-transform: uppercase;
        }

        .nav-list {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition-base);
            position: relative;
            cursor: pointer;
        }

        .nav-item i {
            font-size: 16px;
            width: 20px;
            text-align: center;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .nav-item:hover {
            color: var(--accent-blue);
            background: rgba(0, 200, 255, 0.08);
        }

        .nav-item:hover i {
            color: var(--accent-blue);
        }

        .nav-item.active {
            color: var(--accent-blue);
            background: rgba(0, 200, 255, 0.12);
            box-shadow: inset 0 0 0 1px rgba(0, 200, 255, 0.25);
        }

        .nav-item.active i {
            color: var(--accent-blue);
        }

        .nav-item.active::after {
            content: '';
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent-blue);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--glow-blue);
        }

        .sidebar-footer {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 11px;
            color: var(--text-small);
            text-align: center;
            letter-spacing: 0.5px;
        }

        /* ========== Mobile Top Bar ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(8, 12, 24, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 200, 255, 0.2);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-header .mobile-logo {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.5px;
        }

        .mobile-header .mobile-logo span {
            color: var(--accent-blue);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            z-index: 1002;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-heading);
            border-radius: 2px;
            transition: all 0.3s ease;
            transform-origin: center;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
            background: var(--accent-blue);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
            background: var(--accent-blue);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.visible {
            opacity: 1;
        }

        /* ========== Main Content Area ========== */
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            width: calc(100% - var(--nav-width));
        }

        /* ========== Hero Section ========== */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 80px 32px;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.5) 0%, rgba(10, 14, 26, 0.7) 40%, var(--bg-primary) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(0, 200, 255, 0.12) 0%, transparent 60%), radial-gradient(ellipse at 70% 60%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-particle {
            position: absolute;
            border-radius: 50%;
            background: var(--accent-blue);
            opacity: 0.3;
            animation: floatParticle 12s infinite ease-in-out;
            pointer-events: none;
        }
        .hero-particle:nth-child(1) { width: 3px; height: 3px; top: 20%; left: 15%; animation-delay: 0s; }
        .hero-particle:nth-child(2) { width: 5px; height: 5px; top: 35%; left: 75%; animation-delay: 2s; opacity: 0.2; }
        .hero-particle:nth-child(3) { width: 2px; height: 2px; top: 60%; left: 45%; animation-delay: 4s; }
        .hero-particle:nth-child(4) { width: 4px; height: 4px; top: 70%; left: 85%; animation-delay: 6s; opacity: 0.18; }
        .hero-particle:nth-child(5) { width: 3px; height: 3px; top: 15%; left: 55%; animation-delay: 8s; opacity: 0.25; }
        .hero-particle:nth-child(6) { width: 6px; height: 6px; top: 50%; left: 8%; animation-delay: 3s; opacity: 0.12; }

        @keyframes floatParticle {
            0%, 100% { transform: translateY(0) translateX(0); }
            25% { transform: translateY(-30px) translateX(12px); }
            50% { transform: translateY(-12px) translateX(-8px); }
            75% { transform: translateY(-24px) translateX(6px); }
        }

        .hero-glass {
            position: relative;
            z-index: 2;
            max-width: 720px;
            width: 100%;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 24px;
            padding: 48px 44px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 200, 255, 0.08);
            text-align: center;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            background: rgba(0, 200, 255, 0.1);
            border: 1px solid rgba(0, 200, 255, 0.3);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-blue);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .hero-badge i {
            font-size: 11px;
        }

        .hero-badge.gold {
            background: rgba(201, 160, 80, 0.1);
            border-color: rgba(201, 160, 80, 0.3);
            color: var(--accent-gold);
        }

        .hero-badge.purple {
            background: rgba(139, 92, 246, 0.1);
            border-color: rgba(139, 92, 246, 0.3);
            color: var(--accent-purple);
        }

        .hero-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero-title .accent {
            color: var(--accent-blue);
            text-shadow: 0 0 18px rgba(0, 200, 255, 0.5);
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-qualify {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 30px;
            letter-spacing: 0.3px;
        }

        .hero-qualify strong {
            color: var(--text-heading);
            font-weight: 600;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 32px;
            background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-deep) 100%);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            box-shadow: 0 0 15px rgba(0, 200, 255, 0.5), 0 8px 25px rgba(0, 200, 255, 0.25);
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
        }

        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 200, 255, 0.65), 0 10px 32px rgba(0, 200, 255, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 12px rgba(0, 200, 255, 0.4);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 32px;
            background: transparent;
            color: var(--accent-blue);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: 1px solid var(--accent-blue);
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
        }

        .btn-ghost:hover {
            background: rgba(0, 200, 255, 0.1);
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.25);
            color: var(--accent-blue);
            transform: translateY(-2px);
        }

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

        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
            border-radius: 8px;
        }

        /* ========== Section Base ========== */
        .section {
            padding: 0 32px;
            margin-bottom: var(--section-gap);
        }

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

        .section-header h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-heading);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .section-header h2 .accent {
            color: var(--accent-blue);
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 580px;
            line-height: 1.8;
        }

        /* ========== Horizontal Track (片库轨道) ========== */
        .track-scroll {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding: 8px 4px 24px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 200, 255, 0.35) transparent;
        }

        .track-scroll::-webkit-scrollbar {
            height: 5px;
        }
        .track-scroll::-webkit-scrollbar-track {
            background: transparent;
        }
        .track-scroll::-webkit-scrollbar-thumb {
            background: rgba(0, 200, 255, 0.35);
            border-radius: 10px;
        }

        .track-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25), 0 0 12px rgba(0, 200, 255, 0.06);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .track-card:hover {
            border-color: rgba(0, 200, 255, 0.45);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35), 0 0 22px rgba(0, 200, 255, 0.18);
            transform: translateY(-4px);
        }

        .track-card-img {
            position: relative;
            height: 150px;
            overflow: hidden;
        }

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

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

        .track-hot-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(10, 14, 26, 0.75);
            backdrop-filter: blur(6px);
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            color: var(--accent-blue);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .track-card-body {
            padding: 16px 18px 18px;
        }

        .track-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .track-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .track-card-meta i {
            font-size: 11px;
        }

        /* ========== Hot Recommendations (热播推荐) ========== */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }

        .hot-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .hot-card:hover {
            border-color: rgba(0, 200, 255, 0.45);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35), 0 0 20px rgba(0, 200, 255, 0.15);
            transform: translateY(-4px);
        }

        .hot-card.large {
            grid-column: span 2;
            grid-row: span 2;
        }
        .hot-card.large .hot-card-img {
            height: 300px;
        }

        .hot-card-img {
            height: 140px;
            overflow: hidden;
        }

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

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

        .hot-card-body {
            padding: 16px 18px 18px;
        }

        .hot-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .hot-card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(0, 200, 255, 0.1);
            color: var(--accent-blue);
            border: 1px solid rgba(0, 200, 255, 0.25);
        }
        .hot-card-tag.gold {
            background: rgba(201, 160, 80, 0.1);
            color: var(--accent-gold);
            border-color: rgba(201, 160, 80, 0.25);
        }

        /* ========== Selling Points (卖点三连) ========== */
        .points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .point-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px 26px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22), 0 0 18px rgba(0, 200, 255, 0.05);
            transition: all var(--transition-base);
            text-align: center;
        }

        .point-card:hover {
            border-color: rgba(0, 200, 255, 0.45);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3), 0 0 26px rgba(0, 200, 255, 0.18);
            transform: translateY(-4px);
        }

        .point-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: rgba(0, 200, 255, 0.12);
            border: 1px solid rgba(0, 200, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent-blue);
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.15);
        }

        .point-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 10px;
        }

        .point-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== Forum Sections (片单分区) ========== */
        .sections-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .section-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22);
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .section-card:hover {
            border-color: rgba(0, 200, 255, 0.45);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.32), 0 0 22px rgba(0, 200, 255, 0.15);
            transform: translateY(-4px);
        }

        .section-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle at top right, rgba(0, 200, 255, 0.08), transparent 70%);
            pointer-events: none;
        }

        .section-card.tall {
            grid-row: span 2;
        }
        .section-card.tall .section-card-icon {
            font-size: 36px;
            margin-bottom: 20px;
        }

        .section-card-icon {
            font-size: 28px;
            color: var(--accent-blue);
            margin-bottom: 16px;
            text-shadow: 0 0 14px rgba(0, 200, 255, 0.35);
        }

        .section-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .section-card .post-count {
            font-size: 12px;
            color: var(--accent-blue);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== Vertical Feed (竖屏种草) ========== */
        .vertical-feed {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 8px 4px 24px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: rgba(0, 200, 255, 0.35) transparent;
        }
        .vertical-feed::-webkit-scrollbar {
            height: 5px;
        }
        .vertical-feed::-webkit-scrollbar-thumb {
            background: rgba(0, 200, 255, 0.35);
            border-radius: 10px;
        }

        .vertical-card {
            flex: 0 0 200px;
            scroll-snap-align: start;
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .vertical-card:hover {
            border-color: rgba(0, 200, 255, 0.45);
            box-shadow: 0 8px 26px rgba(0, 0, 0, 0.35), 0 0 20px rgba(0, 200, 255, 0.15);
            transform: translateY(-4px);
        }

        .vertical-card-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

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

        .vertical-card:hover .vertical-card-img img {
            transform: scale(1.06);
        }

        .vertical-card-body {
            padding: 16px 16px 18px;
        }

        .vertical-card-body h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .vertical-card-body p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .vertical-card-cta {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-blue);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }
        .vertical-card:hover .vertical-card-cta {
            gap: 9px;
        }

        /* ========== News Area (资讯区) ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
        }

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

        .news-list-col .news-section-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-base);
            cursor: pointer;
            border-radius: 8px;
        }
        .news-item:hover {
            background: rgba(0, 200, 255, 0.05);
            padding-left: 18px;
        }

        .news-item .news-index {
            font-size: 20px;
            font-weight: 700;
            color: rgba(0, 200, 255, 0.4);
            min-width: 32px;
            text-align: center;
            font-style: italic;
        }

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

        .news-item .news-info h4 {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            line-height: 1.6;
            transition: color var(--transition-base);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item:hover .news-info h4 {
            color: var(--accent-blue);
        }

        .news-item .news-info .news-date {
            font-size: 12px;
            color: var(--text-small);
            margin-top: 2px;
        }

        .news-recommend-col {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .news-recommend-col .news-section-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .news-recommend-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-recommend-card:hover {
            border-color: rgba(0, 200, 255, 0.4);
            box-shadow: 0 6px 22px rgba(0, 0, 0, 0.3), 0 0 16px rgba(0, 200, 255, 0.12);
            transform: translateY(-3px);
        }

        .news-recommend-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }

        .news-recommend-card .news-recommend-body {
            padding: 14px 16px;
        }
        .news-recommend-card .news-recommend-body h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.5;
        }

        /* ========== Pricing Contrast (票种对比) ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
            margin-bottom: 32px;
        }

        .pricing-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22);
            transition: all var(--transition-base);
            text-align: center;
            position: relative;
        }
        .pricing-card:hover {
            border-color: rgba(0, 200, 255, 0.4);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3), 0 0 22px rgba(0, 200, 255, 0.12);
            transform: translateY(-4px);
        }

        .pricing-card.featured {
            border-color: rgba(0, 200, 255, 0.5);
            box-shadow: 0 0 30px rgba(0, 200, 255, 0.2), 0 8px 28px rgba(0, 0, 0, 0.3);
            transform: translateY(-6px);
        }
        .pricing-card.featured:hover {
            transform: translateY(-10px);
            box-shadow: 0 0 38px rgba(0, 200, 255, 0.28), 0 12px 36px rgba(0, 0, 0, 0.35);
        }

        .pricing-card .pricing-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 16px;
            background: rgba(0, 200, 255, 0.1);
            color: var(--accent-blue);
            border: 1px solid rgba(0, 200, 255, 0.3);
        }
        .pricing-card .pricing-tag.gold {
            background: rgba(201, 160, 80, 0.1);
            color: var(--accent-gold);
            border-color: rgba(201, 160, 80, 0.3);
        }

        .pricing-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }

        .pricing-card .pricing-price {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-blue);
            margin-bottom: 16px;
            text-shadow: 0 0 18px rgba(0, 200, 255, 0.35);
        }
        .pricing-card .pricing-price.gold {
            color: var(--accent-gold);
            text-shadow: 0 0 18px rgba(201, 160, 80, 0.35);
        }

        .pricing-card ul {
            text-align: left;
            margin-bottom: 20px;
        }
        .pricing-card ul li {
            font-size: 13px;
            color: var(--text-muted);
            padding: 7px 0;
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .pricing-card ul li i {
            color: var(--accent-blue);
            font-size: 12px;
        }

        .pricing-cta-wrap {
            text-align: center;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            position: relative;
            padding: 64px 32px;
            background: linear-gradient(135deg, rgba(0, 200, 255, 0.12) 0%, rgba(59, 130, 246, 0.1) 40%, rgba(139, 92, 246, 0.08) 100%);
            border-top: 1px solid rgba(0, 200, 255, 0.25);
            border-bottom: 1px solid rgba(0, 200, 255, 0.25);
            box-shadow: 0 -10px 40px rgba(0, 200, 255, 0.08), 0 10px 40px rgba(0, 200, 255, 0.08);
            text-align: center;
            margin-bottom: 0;
        }

        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .cta-section h2 .accent {
            color: var(--accent-blue);
            text-shadow: 0 0 18px rgba(0, 200, 255, 0.5);
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 480px;
            margin: 0 auto 26px;
            line-height: 1.8;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(0, 200, 255, 0.3);
        }
        .faq-item.open {
            border-color: rgba(0, 200, 255, 0.5);
            box-shadow: 0 0 18px rgba(0, 200, 255, 0.12);
        }

        .faq-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-heading);
            letter-spacing: 0.3px;
            transition: color var(--transition-base);
        }
        .faq-trigger:hover {
            color: var(--accent-blue);
        }

        .faq-trigger .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-trigger .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-blue);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-content {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ========== Footer ========== */
        .site-footer {
            padding: 48px 32px 32px;
            background: #070a14;
            border-top: 1px solid rgba(0, 200, 255, 0.15);
            margin-left: 0;
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: space-between;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .footer-brand h3 span {
            color: var(--accent-blue);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 300px;
        }

        .footer-links {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .footer-links .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-links .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-links .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .footer-links .footer-col ul li a:hover {
            color: var(--accent-blue);
        }

        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-small);
        }

        .footer-bottom .copyright span {
            color: var(--text-muted);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hot-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .hot-card.large {
                grid-column: span 2;
                grid-row: span 1;
            }
            .hot-card.large .hot-card-img {
                height: 180px;
            }

            .sections-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-card.tall {
                grid-row: span 1;
            }

            .pricing-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .pricing-card {
                padding: 24px 18px;
            }
            .pricing-card .pricing-price {
                font-size: 26px;
            }
        }

        @media (max-width: 820px) {
            :root {
                --section-gap: 64px;
                --card-gap: 16px;
            }

            .sidebar-nav {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.5);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }
            .mobile-overlay {
                display: block;
            }

            .main-content {
                margin-left: 0;
                width: 100%;
                padding-top: 56px;
            }

            .hero-section {
                min-height: 72vh;
                padding: 40px 20px;
            }
            .hero-glass {
                padding: 32px 24px;
                border-radius: 18px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 14px;
            }

            .section {
                padding: 0 20px;
                margin-bottom: var(--section-gap);
            }

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

            .hot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-card.large {
                grid-column: span 2;
                grid-row: span 1;
            }

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

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

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

            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .pricing-card.featured {
                transform: translateY(0);
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }

            .cta-section {
                padding: 48px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }

            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .footer-links {
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 48px;
                --radius-card: 14px;
            }

            .hero-section {
                min-height: 65vh;
                padding: 28px 14px;
            }
            .hero-glass {
                padding: 24px 16px;
                border-radius: 14px;
            }
            .hero-title {
                font-size: 20px;
                letter-spacing: 0;
            }
            .hero-desc {
                font-size: 13px;
                line-height: 1.7;
            }
            .hero-badge {
                font-size: 10px;
                padding: 5px 10px;
                gap: 4px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary, .btn-ghost {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                font-size: 14px;
            }

            .section {
                padding: 0 14px;
                margin-bottom: var(--section-gap);
            }
            .section-header {
                margin-bottom: 24px;
            }
            .section-header h2 {
                font-size: 18px;
            }
            .section-header p {
                font-size: 13px;
            }

            .track-card {
                flex: 0 0 220px;
            }
            .track-card-img {
                height: 120px;
            }
            .track-card-body h3 {
                font-size: 13px;
            }

            .hot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hot-card.large {
                grid-column: span 1;
            }
            .hot-card.large .hot-card-img {
                height: 140px;
            }
            .hot-card-img {
                height: 140px;
            }

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

            .vertical-card {
                flex: 0 0 160px;
            }
            .vertical-card-img {
                height: 180px;
            }

            .news-item {
                padding: 12px 8px;
                gap: 10px;
            }
            .news-item .news-index {
                font-size: 16px;
                min-width: 24px;
            }
            .news-item .news-info h4 {
                font-size: 13px;
            }

            .faq-trigger {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-content p {
                font-size: 13px;
            }

            .cta-section {
                padding: 36px 16px;
            }
            .cta-section h2 {
                font-size: 19px;
            }

            .site-footer {
                padding: 32px 16px 20px;
            }
            .footer-brand h3 {
                font-size: 16px;
            }
        }