/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --bg: #0b0b10;
            --surface: #14141c;
            --surface-raised: #1d1d27;
            --text-1: #f2eee7;
            --text-2: #a3a3b0;
            --text-3: #6e6e7d;
            --accent: #d9a24b;
            --accent-hover: #e9b866;
            --accent-soft: rgba(217, 162, 75, 0.12);
            --success: #3ecf8e;
            --danger: #e1674c;
            --border: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-1: 0 20px 60px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 30px 70px rgba(0, 0, 0, 0.5);
            --transition: 280ms cubic-bezier(0.22, 1, 0.36, 1);
            --container: 1200px;
            --font-main: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text-1);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: var(--font-main);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-main);
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
            position: relative;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
        }

        /* ========== 滚动显现动效 ========== */
        .reveal {
            opacity: 0;
            transform: translateY(14px);
            transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
        }
        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            background: var(--accent);
            color: #0b0b10;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(217, 162, 75, 0.25);
            color: #0b0b10;
        }
        .btn-primary:focus {
            outline: 3px solid rgba(217, 162, 75, 0.4);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            background: transparent;
            color: var(--accent);
            font-size: 0.95rem;
            font-weight: 500;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(217, 162, 75, 0.6);
            transition: background var(--transition), transform var(--transition), border-color var(--transition);
        }
        .btn-secondary:hover {
            background: var(--accent-soft);
            border-color: var(--accent);
            transform: translateY(-2px);
            color: var(--accent-hover);
        }
        .btn-secondary:focus {
            outline: 3px solid rgba(217, 162, 75, 0.3);
            outline-offset: 2px;
        }

        .ghost-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-1);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color var(--transition), gap var(--transition);
        }
        .ghost-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ========== 徽章 / 标签 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(217, 162, 75, 0.35);
            color: var(--accent);
            background: var(--accent-soft);
            line-height: 1.5;
        }

        .badge-hot {
            border-color: rgba(225, 103, 76, 0.4);
            color: var(--danger);
            background: rgba(225, 103, 76, 0.1);
        }

        .badge-4k {
            border-color: rgba(62, 207, 142, 0.4);
            color: var(--success);
            background: rgba(62, 207, 142, 0.08);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.82rem;
            color: var(--text-2);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: default;
        }
        .tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-soft);
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 72px;
            background: rgba(11, 11, 16, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(11, 11, 16, 0.94);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            max-width: var(--container);
            height: 72px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent), #b8862f);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 12px rgba(217, 162, 75, 0.3);
        }
        .logo-icon svg {
            width: 14px;
            height: 14px;
            fill: #0b0b10;
        }
        .logo-text {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-menu > li {
            position: relative;
        }
        .nav-menu a {
            color: var(--text-2);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition);
            line-height: 1.4;
        }
        .nav-menu a:hover {
            color: #fff;
        }
        .nav-menu a.active {
            color: #fff;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-menu a .nav-badge {
            position: absolute;
            top: -10px;
            right: -16px;
            font-size: 0.65rem;
            font-weight: 600;
            padding: 1px 6px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(217, 162, 75, 0.4);
            color: var(--accent);
            background: rgba(11, 11, 16, 0.8);
            line-height: 1.4;
            white-space: nowrap;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            transition: border-color var(--transition);
        }
        .menu-toggle:hover {
            border-color: var(--accent);
        }
        .menu-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text-1);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        @media (max-width: 1024px) {
            .nav-menu {
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 72px;
                right: 0;
                left: 0;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                background: rgba(11, 11, 16, 0.95);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-12px);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu a {
                display: flex;
                align-items: center;
                height: 48px;
                font-size: 1rem;
                padding: 0 8px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-menu a:hover {
                background: rgba(255, 255, 255, 0.04);
            }
            .nav-menu a.active::after {
                left: 12px;
                transform: none;
                width: 4px;
                height: 20px;
                border-radius: 2px;
            }
        }

        /* ========== Hero ========== */
        .hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            position: relative;
            background-image: linear-gradient(90deg, rgba(11, 11, 16, 0.95) 0%, rgba(11, 11, 16, 0.78) 55%, rgba(11, 11, 16, 0.5) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding: 120px 0 60px;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(217, 162, 75, 0.06) 0%, transparent 70%);
            top: 20%;
            right: 10%;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-2);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 24px;
        }
        .hero-badge-dot {
            width: 6px;
            height: 6px;
            background: var(--success);
            border-radius: 50%;
        }
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.6rem);
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-1);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero h1 .accent-text {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: clamp(1rem, 1.4vw, 1.15rem);
            color: var(--text-2);
            max-width: 540px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 24px;
        }
        .hero-play {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(217, 162, 75, 0.12);
            border: 1px solid rgba(217, 162, 75, 0.4);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .hero-play:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: scale(1.06);
        }
        .hero-play svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
            transition: fill var(--transition);
            margin-left: 2px;
        }
        .hero-play:hover svg {
            fill: #0b0b10;
        }
        .hero-note {
            font-size: 0.82rem;
            color: var(--text-3);
            margin-top: 8px;
        }

        .hero-stats {
            display: flex;
            gap: 0;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
            max-width: 600px;
        }
        .hero-stat {
            flex: 1;
            padding: 0 20px;
            position: relative;
        }
        .hero-stat:first-child {
            padding-left: 0;
        }
        .hero-stat:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background: rgba(255, 255, 255, 0.08);
        }
        .hero-stat .num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }
        .hero-stat .label {
            font-size: 0.8rem;
            color: var(--text-3);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 40px;
                min-height: auto;
            }
            .hero-stats {
                flex-wrap: wrap;
                margin-top: 40px;
            }
            .hero-stat {
                flex: 0 0 50%;
                padding: 12px 0;
            }
            .hero-stat:not(:last-child)::after {
                display: none;
            }
        }

        /* ========== 痛点区 ========== */
        .pain-section {
            background: var(--bg);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-header .eyebrow {
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: inline-block;
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 3.6vw, 2.8rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-1);
            margin-bottom: 16px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-2);
            line-height: 1.8;
        }

        .pain-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            height: 100%;
            transition: all var(--transition);
        }
        .pain-card:hover {
            transform: translateY(-6px);
            border-color: rgba(217, 162, 75, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .pain-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .pain-card .icon-wrap svg {
            width: 24px;
            height: 24px;
            stroke: var(--accent);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .pain-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 10px;
        }
        .pain-card p {
            font-size: 0.92rem;
            color: var(--text-2);
            line-height: 1.7;
        }

        .transition-hint {
            text-align: center;
            margin-top: 48px;
            color: var(--text-3);
            font-size: 0.9rem;
        }
        .scroll-arrow {
            display: flex;
            justify-content: center;
            margin-top: 12px;
            color: var(--text-3);
        }
        .scroll-arrow svg {
            width: 20px;
            height: 20px;
            animation: bounce 2s infinite;
        }
        @keyframes bounce {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(6px);
            }
        }

        /* ========== 解决方案区 ========== */
        .solution-section {
            background: linear-gradient(180deg, var(--bg) 0%, #0e0e16 50%, var(--bg) 100%);
            position: relative;
            overflow: hidden;
        }
        .solution-section::before {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(217, 162, 75, 0.04) 0%, transparent 70%);
            top: 30%;
            left: -10%;
            pointer-events: none;
        }

        .feature-row {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 96px;
        }
        .feature-row:last-child {
            margin-bottom: 0;
        }
        .feature-row.reverse {
            flex-direction: row-reverse;
        }
        .feature-media {
            flex: 1;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-1);
            border: 1px solid var(--border);
        }
        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 10;
            transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .feature-media:hover img {
            transform: scale(1.04);
        }
        .feature-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11, 11, 16, 0.2) 0%, transparent 50%, rgba(217, 162, 75, 0.05) 100%);
            pointer-events: none;
        }
        .feature-body {
            flex: 1;
        }
        .feature-body h3 {
            font-size: clamp(1.4rem, 2.4vw, 1.8rem);
            font-weight: 600;
            color: var(--text-1);
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .feature-body p.desc {
            font-size: 0.96rem;
            color: var(--text-2);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .feature-list {
            margin-bottom: 24px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.92rem;
            color: var(--text-2);
            padding: 7px 0;
            line-height: 1.6;
        }
        .feature-list li::before {
            content: '';
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 8px;
            box-shadow: 0 0 8px rgba(217, 162, 75, 0.5);
        }

        .feature-divider {
            width: 60px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            margin: 0 auto 96px;
            border-radius: 2px;
        }
        .feature-row.reverse + .feature-divider {
            margin-top: 0;
        }

        @media (max-width: 900px) {
            .feature-row,
            .feature-row.reverse {
                flex-direction: column;
                gap: 32px;
                margin-bottom: 64px;
            }
            .feature-divider {
                margin-bottom: 64px;
            }
        }

        /* ========== 数据成果区 ========== */
        .stats-section {
            position: relative;
            background-image: linear-gradient(180deg, rgba(11, 11, 16, 0.9) 0%, rgba(11, 11, 16, 0.7) 50%, rgba(11, 11, 16, 0.92) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 96px 0;
        }
        @media (max-width: 768px) {
            .stats-section {
                background-attachment: scroll;
                padding: 56px 0;
            }
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }
        .stats-grid .stat-item {
            text-align: center;
            padding: 24px;
            position: relative;
        }
        .stats-grid .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: rgba(255, 255, 255, 0.08);
        }
        .stat-number {
            font-size: clamp(2.4rem, 4vw, 3.4rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            display: block;
            margin-bottom: 6px;
        }
        .stat-number .suffix {
            font-size: 0.6em;
            font-weight: 600;
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-2);
            font-weight: 400;
        }
        .stat-desc {
            font-size: 0.8rem;
            color: var(--text-3);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 0;
            }
            .stats-grid .stat-item:nth-child(2)::after {
                display: none;
            }
            .stats-grid .stat-item:nth-child(4)::after {
                display: none;
            }
        }

        /* ========== 热门内容区 ========== */
        .featured-section {
            background: var(--bg);
        }
        .featured-list {
            margin-top: 48px;
        }
        .featured-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            margin-bottom: 20px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .featured-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
            transform: scaleY(0);
            transition: transform var(--transition);
        }
        .featured-item:hover {
            background: rgba(217, 162, 75, 0.04);
            border-color: rgba(217, 162, 75, 0.25);
            transform: translateX(4px);
        }
        .featured-item:hover::before {
            transform: scaleY(1);
        }
        .featured-thumb {
            flex-shrink: 0;
            width: 220px;
            height: 130px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .featured-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s var(--transition);
        }
        .featured-item:hover .featured-thumb img {
            transform: scale(1.05);
        }
        .featured-info {
            flex: 1;
            min-width: 0;
        }
        .featured-info h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 6px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .featured-info p {
            font-size: 0.88rem;
            color: var(--text-2);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
            margin-bottom: 10px;
        }
        .featured-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .featured-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 14px;
            }
            .featured-thumb {
                width: 100%;
                height: 180px;
            }
        }

        /* ========== 资讯清单区 ========== */
        .news-section {
            background: linear-gradient(0deg, #0d0d14 0%, var(--bg) 100%);
        }
        .news-layout {
            display: flex;
            gap: 48px;
            margin-top: 48px;
        }
        .news-list-col {
            flex: 1.2;
            min-width: 0;
        }
        .news-item {
            display: flex;
            align-items: baseline;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
            position: relative;
        }
        .news-item:hover {
            padding-left: 12px;
        }
        .news-item .news-date {
            flex-shrink: 0;
            font-size: 0.78rem;
            color: var(--text-3);
            font-variant-numeric: tabular-nums;
            width: 52px;
            text-align: right;
        }
        .news-item a {
            color: var(--text-2);
            font-size: 0.94rem;
            line-height: 1.5;
            transition: color var(--transition);
            flex: 1;
        }
        .news-item a:hover {
            color: var(--accent);
        }
        .news-badge-wrapper {
            flex-shrink: 0;
        }
        .news-item .badge {
            font-size: 0.7rem;
        }

        .news-side-col {
            flex: 0.8;
            max-width: 360px;
        }
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            margin-bottom: 20px;
        }
        .news-card img {
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            object-fit: cover;
            height: 150px;
            width: 100%;
        }
        .news-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 0.86rem;
            color: var(--text-2);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .news-card .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        @media (max-width: 900px) {
            .news-layout {
                flex-direction: column;
                gap: 32px;
            }
            .news-side-col {
                max-width: 100%;
            }
        }

        /* ========== 用户证言区 ========== */
        .testimonials-section {
            background: var(--bg);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            transition: all var(--transition);
            position: relative;
        }
        .testimonial-card:nth-child(2) {
            transform: translateY(16px);
        }
        .testimonial-card:hover {
            transform: translateY(0);
            border-color: rgba(217, 162, 75, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-stars {
            display: flex;
            gap: 3px;
            margin-bottom: 16px;
        }
        .testimonial-stars svg {
            width: 16px;
            height: 16px;
            fill: var(--accent);
        }
        .testimonial-text {
            font-size: 0.92rem;
            color: var(--text-2);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-soft);
            border: 1px solid rgba(217, 162, 75, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            overflow: hidden;
        }
        .testimonial-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .testimonial-user .name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-1);
        }
        .testimonial-user .role {
            font-size: 0.78rem;
            color: var(--text-3);
        }

        @media (max-width: 900px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .testimonial-card:nth-child(2) {
                transform: translateY(0);
            }
        }

        /* ========== FAQ区 ========== */
        .faq-section {
            background: linear-gradient(0deg, var(--bg) 0%, #0e0e16 50%, var(--bg) 100%);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 32px;
            margin-top: 48px;
        }
        .accordion-item-custom {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .accordion-item-custom.is-active {
            border-color: rgba(217, 162, 75, 0.4);
        }
        .accordion-item-custom .accordion-title-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text-1);
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .accordion-item-custom .accordion-title-custom:hover {
            color: var(--accent);
        }
        .accordion-item-custom.is-active .accordion-title-custom {
            color: var(--accent);
        }
        .accordion-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            position: relative;
        }
        .accordion-icon::before,
        .accordion-icon::after {
            content: '';
            position: absolute;
            background: var(--text-2);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .accordion-icon::before {
            width: 12px;
            height: 2px;
            top: 9px;
            left: 4px;
        }
        .accordion-icon::after {
            width: 2px;
            height: 12px;
            top: 4px;
            left: 9px;
        }
        .accordion-item-custom.is-active .accordion-icon::before {
            background: var(--accent);
            transform: rotate(180deg);
        }
        .accordion-item-custom.is-active .accordion-icon::after {
            background: var(--accent);
            transform: scaleY(0);
        }
        .accordion-content-custom {
            padding: 0 22px 20px;
            font-size: 0.9rem;
            color: var(--text-2);
            line-height: 1.8;
            display: none;
        }
        .accordion-item-custom.is-active .accordion-content-custom {
            display: block;
        }

        @media (max-width: 900px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 最终CTA ========== */
        .cta-section {
            padding: 0;
        }
        .cta-banner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 80px 48px;
            text-align: center;
            background-image: linear-gradient(rgba(11, 11, 16, 0.8), rgba(11, 11, 16, 0.85)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            border-radius: 24px;
            border: 1px solid rgba(217, 162, 75, 0.25);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(217, 162, 75, 0.08) 0%, transparent 70%);
            top: -50px;
            right: -50px;
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: clamp(1.8rem, 3.6vw, 2.8rem);
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .cta-banner h2 .accent-text {
            color: var(--accent);
        }
        .cta-banner p {
            font-size: 1rem;
            color: var(--text-2);
            margin-bottom: 32px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .cta-banner .btn-primary {
            font-size: 1rem;
            height: 52px;
            padding: 0 36px;
        }

        @media (max-width: 768px) {
            .cta-banner {
                border-radius: 0;
                padding: 56px 24px;
                margin: 0;
                border-left: none;
                border-right: none;
                border-radius: 0;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #08080c;
            border-top: 1px solid rgba(217, 162, 75, 0.2);
            padding: 64px 0 28px;
            margin-top: 96px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-3);
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col h3 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-2);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-newsletter p {
            font-size: 0.88rem;
            color: var(--text-3);
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .newsletter-form {
            display: flex;
            gap: 8px;
        }
        .newsletter-form input[type="email"] {
            flex: 1;
            height: 44px;
            padding: 0 14px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            color: var(--text-1);
            font-size: 0.88rem;
            outline: none;
            transition: all var(--transition);
            min-width: 0;
        }
        .newsletter-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(217, 162, 75, 0.15);
        }
        .newsletter-form input[type="email"]::placeholder {
            color: var(--text-3);
        }
        .newsletter-form .btn-primary {
            height: 44px;
            padding: 0 22px;
            font-size: 0.88rem;
            flex-shrink: 0;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 0.8rem;
            color: var(--text-3);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--text-3);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-3);
            transition: all var(--transition);
        }
        .footer-social a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-soft);
        }
        .footer-social svg {
            width: 16px;
            height: 16px;
            fill: currentColor;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== Foundation 降噪 ========== */
        .top-bar,
        .accordion,
        .menu {
            background: transparent;
        }
        .menu > li > a {
            color: var(--text-2);
            background: transparent;
            padding: 0;
            line-height: 1.4;
        }
        .menu > li > a:hover {
            background: transparent;
            color: #fff;
        }
        .top-bar {
            padding: 0;
        }
        .row {
            max-width: var(--container);
        }
        .accordion {
            margin-bottom: 0;
        }
        .accordion-title {
            border: none;
            color: var(--text-1);
            background: transparent;
        }
        .accordion-content {
            border: none;
            background: transparent;
            color: var(--text-2);
        }
        .clearfix::before,
        .clearfix::after {
            display: none;
        }

        /* ========== 后台光斑氛围（轻量） ========== */
        .glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(40px);
            pointer-events: none;
            z-index: 0;
        }
        .glow-orb.orb-1 {
            width: 400px;
            height: 400px;
            background: rgba(217, 162, 75, 0.04);
            top: 20%;
            right: -100px;
        }
        .glow-orb.orb-2 {
            width: 300px;
            height: 300px;
            background: rgba(217, 162, 75, 0.03);
            bottom: 10%;
            left: -80px;
        }

/* roulang page: category1 */
:root {
  --bg: #0b0b10;
  --surface: #14141c;
  --surface-raised: #1d1d27;
  --text-1: #f2eee7;
  --text-2: #a3a3b0;
  --text-3: #6e6e7d;
  --accent: #d9a24b;
  --accent-hover: #e9b866;
  --accent-soft: rgba(217, 162, 75, 0.12);
  --success: #3ecf8e;
  --danger: #e1674c;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-1: 0 20px 60px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 30px 70px rgba(0, 0, 0, 0.5);
  --transition: 280ms cubic-bezier(0.22, 1, 0.36, 1);
  --container: 1200px;
  --font-main: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  background: none;
}

input {
  font-family: var(--font-main);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

/* ========== 按钮 ========== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: var(--accent);
  color: #0b0b10;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(217, 162, 75, 0.25);
  color: #0b0b10;
}

.btn-primary:focus {
  outline: 3px solid rgba(217, 162, 75, 0.4);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: transparent;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(217, 162, 75, 0.6);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.btn-secondary:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--accent-hover);
}

.btn-secondary:focus {
  outline: 3px solid rgba(217, 162, 75, 0.3);
  outline-offset: 2px;
}

/* ========== 徽章 / 标签 ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(217, 162, 75, 0.35);
  color: var(--accent);
  background: var(--accent-soft);
  line-height: 1.5;
}

.badge-hot {
  border-color: rgba(225, 103, 76, 0.4);
  color: var(--danger);
  background: rgba(225, 103, 76, 0.1);
}

.badge-4k {
  border-color: rgba(62, 207, 142, 0.4);
  color: var(--success);
  background: rgba(62, 207, 142, 0.08);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  color: var(--text-2);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: default;
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  background: rgba(11, 11, 16, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(11, 11, 16, 0.94);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-inner {
  max-width: var(--container);
  height: 72px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.logo:hover {
  color: var(--accent-hover);
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 10px;
}

.logo-icon svg {
  width: 18px;
  height: 18px;
  fill: #0b0b10;
}

.logo-text {
  font-size: 1.2rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border);
  transition: border-color var(--transition);
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle:hover {
  border-color: var(--accent);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  color: var(--text-2);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color var(--transition);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

.nav-menu a:hover {
  color: #fff;
}

.nav-menu a.active {
  color: var(--accent);
}

.nav-menu a.active::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 20px;
  background: var(--accent);
  color: #0b0b10 !important;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  color: #0b0b10 !important;
}

.nav-cta::after {
  display: none !important;
}

/* ========== 分类页横幅 ========== */
.cat-hero {
  position: relative;
  padding: 120px 0 64px;
  min-height: 40vh;
  display: flex;
  align-items: center;
  background-image: linear-gradient(rgba(11, 11, 16, 0.82), rgba(11, 11, 16, 0.92)), url('/assets/images/coverpic/cover-1.webp');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border);
}

.cat-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(217, 162, 75, 0.06), transparent 60%);
  pointer-events: none;
}

.cat-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-2);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb span.sep {
  color: var(--text-3);
  margin: 0 4px;
}

.cat-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-1);
  max-width: 720px;
  margin-bottom: 16px;
}

.cat-hero h1 span {
  color: var(--accent);
}

.cat-hero .hero-desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
}

/* ========== 板块标题 ========== */
.section-head {
  margin-bottom: 48px;
  max-width: 640px;
}

.section-head .badge {
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-2);
  font-size: 1rem;
  line-height: 1.7;
}

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

/* ========== 大分类卡片区 ========== */
.cat-cards-section {
  padding: 96px 0;
  background: var(--bg);
  position: relative;
}

.cat-cards-section::before {
  content: "";
  position: absolute;
  top: 120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(217, 162, 75, 0.05), transparent 70%);
  pointer-events: none;
}

.cat-grid {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -16px;
  row-gap: 32px;
}

.cat-card-col {
  padding: 0 16px;
  flex: 0 0 50%;
  max-width: 50%;
}

.cat-card {
  display: flex;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.cat-card:hover {
  transform: translateY(-6px);
  border-color: rgba(217, 162, 75, 0.4);
  box-shadow: var(--shadow-hover);
}

.cat-card-cover {
  width: 40%;
  min-width: 180px;
  flex: 0 0 40%;
  position: relative;
  overflow: hidden;
}

.cat-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.cat-card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 11, 16, 0.15), transparent 60%);
  pointer-events: none;
}

.cat-card-info {
  flex: 1;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.cat-card-info h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 4px;
}

.cat-card-info p {
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 4px;
}

.video-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.cat-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.ghost-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 8px;
  transition: gap var(--transition), color var(--transition);
}

.ghost-link:hover {
  color: var(--accent-hover);
  gap: 10px;
}

.ghost-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ========== 热门标签区 ========== */
.cat-tags-section {
  padding: 80px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tags-cloud .tag {
  font-size: 0.9rem;
  padding: 8px 22px;
}

/* ========== 推荐列表区 ========== */
.cat-recommend-section {
  padding: 96px 0;
  background: var(--bg);
}

.recommend-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.recommend-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.recommend-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition);
}

.recommend-item:hover {
  background: rgba(217, 162, 75, 0.05);
  border-color: rgba(217, 162, 75, 0.3);
  transform: translateX(4px);
  box-shadow: var(--shadow-1);
}

.recommend-item:hover::before {
  transform: scaleY(1);
}

.recommend-thumb {
  width: 180px;
  min-width: 180px;
  height: 110px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

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

.recommend-item:hover .recommend-thumb img {
  transform: scale(1.05);
}

.recommend-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.recommend-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.4;
}

.recommend-info p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.recommend-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.recommend-meta .badge {
  font-size: 0.72rem;
}

.duration {
  font-size: 0.8rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

.rating {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.rating-score {
  color: var(--accent);
}

/* ========== 底部CTA ========== */
.cat-cta {
  padding: 72px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.cat-cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 320px;
  background: radial-gradient(ellipse, rgba(217, 162, 75, 0.06), transparent 70%);
  pointer-events: none;
}

.cat-cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.cat-cta-inner h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 24px;
}

.cat-cta-inner .btn-primary {
  min-width: 160px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #08080c;
  border-top: 1px solid rgba(217, 162, 75, 0.3);
  padding: 72px 0 0;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
  font-size: 1.2rem;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 0.88rem;
  color: var(--text-2);
  transition: color var(--transition), padding-left var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-newsletter p {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 16px;
  line-height: 1.6;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  max-width: 320px;
}

.newsletter-form input[type="email"] {
  flex: 1;
  height: 46px;
  padding: 0 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-1);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--text-3);
}

.newsletter-form input[type="email"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(217, 162, 75, 0.15);
}

.newsletter-form .btn-primary {
  height: 46px;
  padding: 0 20px;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 0.82rem;
  color: var(--text-3);
}

.footer-bottom a {
  color: var(--text-3);
}

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

/* ========== 动画 ========== */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .cat-grid {
    row-gap: 24px;
  }
  .cat-card-cover {
    min-width: 160px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .newsletter-form {
    max-width: 100%;
  }
}

@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 11, 16, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-menu.open {
    max-height: 360px;
    opacity: 1;
    visibility: visible;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu li a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 12px;
    font-size: 1rem;
    border-radius: 8px;
    border-bottom: 1px solid transparent;
    color: var(--text-2);
  }

  .nav-menu li a::after {
    left: 12px;
    width: 20px;
  }

  .nav-menu li a:hover {
    background: var(--accent-soft);
    color: var(--accent);
  }

  .nav-menu li a.active {
    color: var(--accent);
    background: rgba(217, 162, 75, 0.06);
  }

  .nav-menu li a.nav-cta {
    display: inline-flex;
    justify-content: center;
    margin-top: 16px;
    height: 44px;
    border-radius: var(--radius-pill);
  }

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

  .cat-card-cover {
    width: 100%;
    min-width: 0;
    flex: 0 0 140px;
  }

  .cat-card-cover::after {
    background: linear-gradient(0deg, rgba(11, 11, 16, 0.2), transparent 60%);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .cat-hero {
    min-height: auto;
    padding: 100px 0 48px;
  }

  .cat-hero h1 {
    font-size: 1.9rem;
  }

  .cat-card-col {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .cat-cards-section {
    padding: 56px 0;
  }

  .cat-recommend-section {
    padding: 56px 0;
  }

  .tags-cloud {
    gap: 8px;
  }

  .tags-cloud .tag {
    padding: 6px 16px;
    font-size: 0.82rem;
  }

  .recommend-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
  }

  .recommend-thumb {
    width: 100%;
    min-width: 100%;
    height: 160px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .cat-hero {
    padding: 96px 0 40px;
  }

  .cat-hero h1 {
    font-size: 1.6rem;
  }

  .cat-hero .hero-desc {
    font-size: 0.95rem;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .section-head h2 {
    font-size: 1.5rem;
  }

  .cat-card-info {
    padding: 20px;
  }

  .cat-card-info h3 {
    font-size: 1.2rem;
  }

  .recommend-meta {
    gap: 6px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form .btn-primary {
    width: 100%;
  }

  .cat-cta-inner h2 {
    font-size: 1.6rem;
  }
}