/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #00f0ff;
            --color-primary-glow: rgba(0, 240, 255, 0.35);
            --color-primary-dim: rgba(0, 240, 255, 0.12);
            --color-secondary: #8b5cf6;
            --color-secondary-glow: rgba(139, 92, 246, 0.30);
            --color-accent: #ff3860;
            --color-accent-glow: rgba(255, 56, 96, 0.30);
            --color-bg: #0a0a1a;
            --color-bg-alt: #0d0d2b;
            --color-bg-card: #12122a;
            --color-bg-card-hover: #181840;
            --color-bg-nav: #0b0b22;
            --color-text: #f0f0f8;
            --color-text-muted: #9090b8;
            --color-text-dim: #606088;
            --color-border: rgba(0, 240, 255, 0.15);
            --color-border-hover: rgba(0, 240, 255, 0.40);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.40);
            --shadow-md: 0 6px 28px rgba(0, 0, 0, 0.55);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.70);
            --shadow-glow: 0 0 30px var(--color-primary-glow);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: #fff;
            outline: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
        }
        h1 {
            font-size: clamp(2.2rem, 6vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 4vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        p {
            margin-bottom: 1rem;
            color: var(--color-text-muted);
        }
        p:last-child {
            margin-bottom: 0;
        }
        ::selection {
            background: var(--color-primary);
            color: #0a0a1a;
        }
        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 11, 34, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition), border-color var(--transition);
            height: var(--header-h);
        }
        .header.scrolled {
            background: rgba(11, 11, 34, 0.96);
            border-bottom-color: var(--color-border-hover);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.60);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
        }
        .header-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
            transition: color var(--transition);
        }
        .header-logo:hover {
            color: var(--color-primary);
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #0a0a1a;
            font-weight: 900;
            box-shadow: 0 0 20px var(--color-primary-glow);
        }
        .header-logo .logo-text {
            background: linear-gradient(90deg, #fff, var(--color-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--color-text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--color-primary-glow);
            transition: width var(--transition);
        }
        .header-nav a:hover {
            color: #fff;
            background: var(--color-primary-dim);
        }
        .header-nav a:hover::after {
            width: 60%;
        }
        .header-nav a.active {
            color: #fff;
            background: var(--color-primary-dim);
        }
        .header-nav a.active::after {
            width: 70%;
            box-shadow: 0 0 20px var(--color-primary-glow);
        }
        .header-nav a i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .header-nav .nav-cta {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #0a0a1a !important;
            font-weight: 700;
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px var(--color-primary-glow);
            transition: all var(--transition);
            margin-left: 8px;
        }
        .header-nav .nav-cta::after {
            display: none;
        }
        .header-nav .nav-cta:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 0 40px var(--color-primary-glow);
            background: linear-gradient(135deg, #00faff, #9d71ff);
            color: #0a0a1a !important;
        }
        .header-nav .nav-cta i {
            opacity: 1;
        }

        /* 移动端汉堡 */
        .header-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .header-toggle:hover {
            background: var(--color-primary-dim);
        }

        @media (max-width: 768px) {
            .header-toggle {
                display: block;
            }
            .header-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(11, 11, 34, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1.05rem;
                justify-content: center;
            }
            .header-nav a::after {
                bottom: 4px;
            }
            .header-nav .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
                width: 100%;
                padding: 12px 24px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(10, 10, 26, 0.60) 0%, rgba(10, 10, 26, 0.88) 70%, var(--color-bg) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, var(--color-bg) 0%, transparent 40%, transparent 70%, var(--color-bg) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            max-width: 920px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary-dim);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: 40px;
            padding: 6px 20px 6px 12px;
            font-size: 0.85rem;
            color: var(--color-primary);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-badge .pulse {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 16px var(--color-primary-glow);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        .hero h1 {
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #ffffff 40%, var(--color-primary) 80%, var(--color-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 2.2vw, 1.3rem);
            color: var(--color-text-muted);
            max-width: 700px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            letter-spacing: 0.3px;
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #0a0a1a !important;
            box-shadow: 0 0 28px var(--color-primary-glow);
        }
        .btn-primary:hover {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 0 50px var(--color-primary-glow);
            color: #0a0a1a !important;
        }
        .btn-secondary {
            background: transparent;
            color: #fff !important;
            border: 1.5px solid var(--color-border);
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-dim);
            transform: translateY(-2px);
            box-shadow: 0 0 20px var(--color-primary-glow);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--color-accent), #ff6b8a);
            color: #fff !important;
            box-shadow: 0 0 28px var(--color-accent-glow);
        }
        .btn-accent:hover {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 0 50px var(--color-accent-glow);
            color: #fff !important;
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid var(--color-border);
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .hero-stats .stat-number i {
            color: var(--color-primary);
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-dim);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 80vh;
                padding: 100px 16px 60px;
            }
            .hero-stats {
                gap: 24px;
                padding-top: 24px;
            }
            .hero-stats .stat-number {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: #08081a;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            max-width: 620px;
            margin: 0 auto;
            font-size: 1.05rem;
            color: var(--color-text-muted);
        }
        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--color-primary);
            background: var(--color-primary-dim);
            padding: 4px 16px;
            border-radius: 40px;
            margin-bottom: 12px;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 4px;
            margin: 16px auto 0;
            box-shadow: 0 0 20px var(--color-primary-glow);
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== 游戏简介 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 40px var(--color-primary-glow);
            border: 1px solid var(--color-border);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }
        .intro-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), transparent);
            pointer-events: none;
        }
        .intro-content h2 {
            margin-bottom: 16px;
        }
        .intro-content p {
            margin-bottom: 16px;
            font-size: 1.02rem;
        }
        .intro-content .intro-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .intro-content .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--color-text-muted);
            font-size: 0.98rem;
        }
        .intro-content .intro-list li i {
            color: var(--color-primary);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        @media (max-width: 900px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-image {
                order: -1;
            }
            .intro-image img {
                min-height: 240px;
            }
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover {
            background: var(--color-bg-card-hover);
            border-color: var(--color-border-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md), 0 0 30px var(--color-primary-glow);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--color-primary-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-primary);
            margin-bottom: 18px;
            transition: all var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: rgba(0, 240, 255, 0.20);
            box-shadow: 0 0 20px var(--color-primary-glow);
        }
        .feature-card h3 {
            margin-bottom: 10px;
            font-size: 1.15rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--color-text-dim);
            margin-bottom: 0;
        }

        @media (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 分类入口 ===== */
        .category-card {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 36px;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .category-card:hover {
            border-color: var(--color-border-hover);
            background: var(--color-bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md), 0 0 30px var(--color-primary-glow);
        }
        .category-card .cat-icon {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary-dim), rgba(139, 92, 246, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--color-primary);
            flex-shrink: 0;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        .category-card .cat-content {
            flex: 1;
        }
        .category-card .cat-content h3 {
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        .category-card .cat-content p {
            color: var(--color-text-dim);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .category-card .cat-arrow {
            font-size: 1.3rem;
            color: var(--color-text-dim);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .category-card:hover .cat-arrow {
            color: var(--color-primary);
            transform: translateX(6px);
        }

        @media (max-width: 640px) {
            .category-card {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
                gap: 16px;
            }
            .category-card .cat-arrow {
                display: none;
            }
        }

        /* ===== 最新资讯 (CMS 列表) ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-5px);
            box-shadow: var(--shadow-md), 0 0 20px var(--color-primary-glow);
            background: var(--color-bg-card-hover);
        }
        .post-card .post-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--color-border);
        }
        .post-card .post-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-dim);
            margin-bottom: 10px;
        }
        .post-card .post-meta .cat-tag {
            background: var(--color-primary-dim);
            color: var(--color-primary);
            padding: 2px 12px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.75rem;
            border: 1px solid rgba(0, 240, 255, 0.12);
        }
        .post-card .post-meta .post-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .post-card .post-meta .post-date i {
            font-size: 0.7rem;
        }
        .post-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }
        .post-card h3 a {
            color: #fff;
            transition: color var(--transition);
        }
        .post-card h3 a:hover {
            color: var(--color-primary);
        }
        .post-card .post-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-dim);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .post-readmore {
            font-size: 0.85rem;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            margin-top: auto;
            align-self: flex-start;
        }
        .post-card .post-readmore:hover {
            color: #fff;
        }
        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
            color: var(--color-text-dim);
            font-size: 1.05rem;
        }
        .posts-empty i {
            font-size: 2.4rem;
            color: var(--color-text-dim);
            margin-bottom: 16px;
            display: block;
            opacity: 0.5;
        }

        @media (max-width: 768px) {
            .posts-grid {
                grid-template-columns: 1fr;
            }
            .post-card .post-img {
                height: 180px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stats-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .stats-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md), 0 0 20px var(--color-primary-glow);
        }
        .stats-item .stats-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stats-item .stats-num i {
            color: var(--color-primary);
            font-size: 1.8rem;
            margin-right: 4px;
        }
        .stats-item .stats-label {
            font-size: 0.9rem;
            color: var(--color-text-dim);
            letter-spacing: 0.5px;
        }
        .stats-item .stats-icon {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-primary));
            opacity: 0.25;
            z-index: 0;
        }
        .step-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--color-border);
            text-align: center;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }
        .step-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md), 0 0 30px var(--color-primary-glow);
        }
        .step-item .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #0a0a1a;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 0 24px var(--color-primary-glow);
        }
        .step-item h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.92rem;
            color: var(--color-text-dim);
            margin-bottom: 0;
        }

        @media (max-width: 900px) {
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid::before {
                display: none;
            }
        }
        @media (max-width: 560px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-hover);
        }
        .faq-item.open {
            border-color: var(--color-border-hover);
            box-shadow: 0 0 20px var(--color-primary-glow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            border: none;
            cursor: pointer;
            transition: background var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            background: var(--color-primary-dim);
        }
        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--color-primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 100px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(10, 10, 26, 0.60) 0%, rgba(10, 10, 26, 0.92) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 4vw, 2.6rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 560px;
            margin: 0 auto 28px;
            color: var(--color-text-muted);
            font-size: 1.05rem;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        @media (max-width: 520px) {
            .cta-section .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .cta-actions .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #060612;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo i {
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-dim);
            max-width: 320px;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--color-text-dim);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-col ul li a i {
            font-size: 0.7rem;
            opacity: 0.5;
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--color-text-dim);
        }
        .footer-bottom a {
            color: var(--color-text-dim);
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }
        .footer-bottom .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-bottom .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-dim);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            font-size: 0.9rem;
        }
        .footer-bottom .footer-social a:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: var(--color-primary-dim);
            box-shadow: 0 0 16px var(--color-primary-glow);
            transform: translateY(-2px);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 面包屑 (内页用) ===== */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-dim);
            padding: 16px 0;
            margin-top: var(--header-h);
        }
        .breadcrumb a {
            color: var(--color-text-dim);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-text-dim);
            font-size: 0.7rem;
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--color-primary);
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #ff2d55;
            --primary-dark: #cc1e3f;
            --primary-light: #ff6b81;
            --primary-glow: rgba(255, 45, 85, 0.4);
            --secondary: #7c3aed;
            --secondary-light: #a78bfa;
            --accent: #f59e0b;
            --bg-dark: #0a0a0f;
            --bg-card: #12121a;
            --bg-card-hover: #1a1a28;
            --bg-section: #0e0e16;
            --bg-section-alt: #14141e;
            --text-primary: #f1f1f6;
            --text-secondary: #9ca3af;
            --text-muted: #6b7280;
            --border-color: #1f1f2e;
            --border-glow: rgba(255, 45, 85, 0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(255, 45, 85, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 10, 15, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .header-logo:hover {
            color: var(--primary-light);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .logo-text {
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a i {
            font-size: 0.85rem;
        }
        .header-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .header-nav a.active {
            color: var(--primary-light);
            background: rgba(255, 45, 85, 0.1);
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--primary-glow);
        }
        .header-nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px var(--primary-glow);
            margin-left: 8px;
        }
        .header-nav a.nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 30px var(--primary-glow);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .header-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 8px 12px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .header-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        /* ===== Article Page ===== */
        .article-page {
            padding-top: calc(var(--header-height) + 40px);
            padding-bottom: 60px;
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            padding: 60px 0 50px;
            background: var(--bg-section);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 15, 0.7) 0%, rgba(10, 10, 15, 0.95) 100%);
            z-index: 1;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--text-muted);
        }
        .article-breadcrumb a:hover {
            color: var(--primary-light);
        }
        .article-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .article-breadcrumb .current {
            color: var(--text-secondary);
        }
        .article-banner .article-category {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(255, 45, 85, 0.15);
            color: var(--primary-light);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
            border: 1px solid rgba(255, 45, 85, 0.2);
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            max-width: 800px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--primary-light);
            font-size: 0.85rem;
        }

        /* Article Content */
        .article-content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            margin-top: 40px;
        }
        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }
        .article-main .article-featured-image {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .article-main .article-body {
            padding: 36px 40px;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(255, 45, 85, 0.15);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 18px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 24px;
            color: var(--text-secondary);
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }
        .article-body strong {
            color: var(--text-primary);
            font-weight: 600;
        }
        .article-body blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: rgba(255, 45, 85, 0.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
        }
        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--primary);
        }
        .article-body .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-body .article-tags span {
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-body .article-tags span:hover {
            border-color: rgba(255, 45, 85, 0.3);
            color: var(--text-secondary);
        }

        /* Article Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 24px;
            transition: var(--transition);
        }
        .sidebar-card:hover {
            border-color: rgba(255, 45, 85, 0.2);
            box-shadow: var(--shadow-glow);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--primary-light);
        }
        .sidebar-card .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .sidebar-card .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-card .sidebar-list li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
            transition: var(--transition);
            display: block;
        }
        .sidebar-card .sidebar-list li a:hover {
            color: var(--primary-light);
        }
        .sidebar-card .sidebar-list li .list-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .sidebar-cta {
            text-align: center;
        }
        .sidebar-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px var(--primary-glow);
            transition: var(--transition);
            margin-top: 12px;
        }
        .sidebar-cta .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px var(--primary-glow);
            color: #fff;
        }
        .sidebar-card .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-cloud a {
            padding: 4px 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .sidebar-card .tag-cloud a:hover {
            border-color: rgba(255, 45, 85, 0.3);
            color: var(--primary-light);
            background: rgba(255, 45, 85, 0.06);
        }

        /* Article Navigation */
        .article-nav {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
            flex: 1;
            max-width: 48%;
        }
        .article-nav a:hover {
            border-color: rgba(255, 45, 85, 0.3);
            color: var(--text-primary);
            box-shadow: var(--shadow-glow);
        }
        .article-nav a span {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: block;
        }
        .article-nav a i {
            font-size: 1.2rem;
            color: var(--primary-light);
        }
        .article-nav .nav-next {
            text-align: right;
            flex-direction: row-reverse;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            margin-top: 40px;
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px var(--primary-glow);
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px var(--primary-glow);
            color: #fff;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo i {
            color: var(--primary-light);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul li a i {
            font-size: 0.65rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
        }
        .footer-col ul li a:hover i {
            color: var(--primary-light);
            transform: translateX(3px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .footer-social a:hover {
            background: rgba(255, 45, 85, 0.15);
            border-color: rgba(255, 45, 85, 0.3);
            color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-banner h1 {
                font-size: 2rem;
            }
            .article-content-wrapper {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 10, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: var(--shadow-lg);
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .header-nav a {
                padding: 12px 16px;
                width: 100%;
                font-size: 1rem;
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-nav a.nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
                justify-content: center;
            }
            .header-toggle {
                display: block;
            }

            .article-banner {
                padding: 40px 0 30px;
            }
            .article-banner h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }
            .article-main .article-body {
                padding: 24px 20px;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .article-nav {
                flex-direction: column;
            }
            .article-nav a {
                max-width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-banner h1 {
                font-size: 1.25rem;
            }
            .article-main .article-body {
                padding: 18px 14px;
            }
            .article-body h2 {
                font-size: 1.15rem;
            }
            .sidebar-card {
                padding: 18px;
            }
            .footer {
                padding: 40px 0 20px;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .article-banner .container>* {
            animation: fadeInUp 0.6s ease forwards;
        }
        .article-banner .container>*:nth-child(2) {
            animation-delay: 0.1s;
        }
        .article-banner .container>*:nth-child(3) {
            animation-delay: 0.2s;
        }
        .article-banner .container>*:nth-child(4) {
            animation-delay: 0.3s;
        }
        .article-main,
        .sidebar-card {
            animation: fadeInUp 0.5s ease forwards;
        }
        .sidebar-card:nth-child(2) {
            animation-delay: 0.1s;
        }
        .sidebar-card:nth-child(3) {
            animation-delay: 0.2s;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
        --primary: #6c3cf0;
        --primary-dark: #4a1fa8;
        --primary-light: #8b6cf7;
        --primary-glow: rgba(108, 60, 240, 0.35);
        --secondary: #ff3d7f;
        --secondary-glow: rgba(255, 61, 127, 0.3);
        --accent: #00d4ff;
        --accent-glow: rgba(0, 212, 255, 0.25);
        --bg-dark: #0b0a1a;
        --bg-card: #12102a;
        --bg-section: #0f0d22;
        --bg-elevated: #1a1738;
        --text-primary: #f0efff;
        --text-secondary: #b8b3e0;
        --text-muted: #7a75a8;
        --border-color: rgba(108, 60, 240, 0.18);
        --border-light: rgba(255, 255, 255, 0.06);
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
        --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
        --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
        --shadow-glow: 0 0 40px rgba(108, 60, 240, 0.15);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        --max-width: 1200px;
        --header-h: 72px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font-sans);
        background: var(--bg-dark);
        color: var(--text-primary);
        line-height: 1.7;
        font-size: 16px;
        min-height: 100vh;
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-light); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    ul, ol { list-style: none; }
    button, input, select, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
    button { cursor: pointer; background: none; }
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== 霓虹发光辅助 ===== */
    .neon-glow { text-shadow: 0 0 20px var(--primary-glow), 0 0 60px var(--primary-glow); }
    .neon-border { border: 1px solid var(--border-color); box-shadow: 0 0 20px var(--primary-glow); }

    /* ===== Header & Nav (暗色霓虹) ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: var(--header-h);
        background: rgba(11, 10, 26, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-color);
        transition: var(--transition);
    }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .header-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 1.35rem;
        letter-spacing: 0.5px;
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: var(--radius-sm);
        color: #fff;
        font-size: 1.2rem;
        font-weight: 800;
        box-shadow: 0 0 20px var(--primary-glow);
    }
    .logo-text {
        background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .header-nav {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .header-nav a {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        font-weight: 500;
        font-size: 0.95rem;
        color: var(--text-secondary);
        transition: var(--transition);
        position: relative;
    }
    .header-nav a i { font-size: 0.9rem; }
    .header-nav a:hover {
        color: var(--text-primary);
        background: rgba(108, 60, 240, 0.12);
    }
    .header-nav a.active {
        color: var(--text-primary);
        background: rgba(108, 60, 240, 0.18);
        box-shadow: inset 0 -2px 0 var(--primary), 0 0 20px var(--primary-glow);
    }
    .header-nav a.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 50%;
        transform: translateX(-50%);
        width: 60%;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        box-shadow: 0 0 12px var(--primary-glow);
    }
    .header-nav a.nav-cta {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        padding: 8px 22px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        box-shadow: 0 0 20px var(--primary-glow);
        margin-left: 6px;
    }
    .header-nav a.nav-cta:hover {
        transform: translateY(-2px) scale(1.02);
        box-shadow: 0 0 35px var(--primary-glow);
        background: linear-gradient(135deg, var(--primary-light), var(--primary));
    }
    .header-toggle {
        display: none;
        font-size: 1.5rem;
        color: var(--text-primary);
        padding: 6px 10px;
        border-radius: var(--radius-sm);
        background: rgba(108, 60, 240, 0.12);
        border: 1px solid var(--border-color);
    }
    .header-toggle:hover { background: rgba(108, 60, 240, 0.22); }

    /* ===== 移动端导航 ===== */
    @media (max-width: 768px) {
        .header-toggle { display: block; }
        .header-nav {
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            flex-direction: column;
            background: rgba(11, 10, 26, 0.98);
            backdrop-filter: blur(20px);
            padding: 18px 24px 24px;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            gap: 4px;
            transform: translateY(-120%);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }
        .header-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: all;
        }
        .header-nav a {
            padding: 12px 16px;
            font-size: 1.05rem;
            width: 100%;
            border-radius: var(--radius-sm);
        }
        .header-nav a.nav-cta {
            margin-left: 0;
            margin-top: 6px;
            text-align: center;
            justify-content: center;
        }
        .header-nav a.active::after { display: none; }
    }

    @media (max-width: 520px) {
        .header .container { padding: 0 16px; }
        .logo-text { font-size: 1.1rem; }
        .logo-icon { width: 32px; height: 32px; font-size: 1rem; }
    }

    /* ===== Page Banner (分类页头) ===== */
    .page-banner {
        padding: 140px 0 60px;
        background: linear-gradient(135deg, rgba(11,10,26,0.92), rgba(15,13,34,0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        border-bottom: 1px solid var(--border-color);
        position: relative;
    }
    .page-banner::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 80px;
        background: linear-gradient(to top, var(--bg-dark), transparent);
    }
    .page-banner .container { position: relative; z-index: 1; }
    .page-banner h1 {
        font-size: 2.8rem;
        font-weight: 800;
        letter-spacing: 1px;
        margin-bottom: 16px;
        background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .page-banner p {
        font-size: 1.15rem;
        color: var(--text-secondary);
        max-width: 680px;
        line-height: 1.8;
    }
    .page-banner .banner-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 24px;
        color: var(--text-muted);
        font-size: 0.95rem;
    }
    .page-banner .banner-meta i { color: var(--primary-light); margin-right: 6px; }

    @media (max-width: 768px) {
        .page-banner { padding: 120px 0 40px; }
        .page-banner h1 { font-size: 2rem; }
        .page-banner p { font-size: 1rem; }
    }
    @media (max-width: 520px) {
        .page-banner h1 { font-size: 1.6rem; }
        .page-banner p { font-size: 0.95rem; }
    }

    /* ===== 分类筛选 ===== */
    .filter-bar {
        padding: 24px 0 0;
        position: relative;
        z-index: 2;
    }
    .filter-bar .container {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 12px;
    }
    .filter-bar .filter-label {
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.95rem;
        margin-right: 6px;
    }
    .filter-bar .filter-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        font-size: 0.9rem;
        font-weight: 500;
        transition: var(--transition);
        cursor: pointer;
    }
    .filter-bar .filter-tag:hover {
        border-color: var(--primary);
        color: var(--text-primary);
        background: rgba(108, 60, 240, 0.12);
    }
    .filter-bar .filter-tag.active {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        box-shadow: 0 0 20px var(--primary-glow);
    }
    .filter-bar .filter-tag i { font-size: 0.85rem; }

    @media (max-width: 520px) {
        .filter-bar .container { gap: 8px; }
        .filter-bar .filter-tag { padding: 6px 14px; font-size: 0.85rem; }
    }

    /* ===== 攻略列表 ===== */
    .guide-section {
        padding: 40px 0 60px;
    }
    .section-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        margin-bottom: 32px;
    }
    .section-header h2 {
        font-size: 1.8rem;
        font-weight: 700;
        letter-spacing: 0.5px;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .section-header h2 i { color: var(--primary-light); font-size: 1.5rem; }
    .section-header .section-link {
        color: var(--primary-light);
        font-weight: 500;
        font-size: 0.95rem;
        display: flex;
        align-items: center;
        gap: 6px;
        transition: var(--transition);
    }
    .section-header .section-link:hover { color: var(--accent); gap: 10px; }

    .guide-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .guide-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .guide-card:hover {
        transform: translateY(-6px);
        border-color: rgba(108, 60, 240, 0.35);
        box-shadow: var(--shadow-md), 0 0 30px var(--primary-glow);
    }
    .guide-card .card-img {
        width: 100%;
        aspect-ratio: 16 / 9;
        object-fit: cover;
        display: block;
        background: var(--bg-elevated);
    }
    .guide-card .card-body {
        padding: 20px 22px 22px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .guide-card .card-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 10px;
    }
    .guide-card .card-tag {
        display: inline-block;
        padding: 3px 12px;
        border-radius: 20px;
        font-size: 0.75rem;
        font-weight: 600;
        background: rgba(108, 60, 240, 0.15);
        color: var(--primary-light);
        border: 1px solid rgba(108, 60, 240, 0.15);
    }
    .guide-card .card-tag.hot {
        background: rgba(255, 61, 127, 0.15);
        color: var(--secondary);
        border-color: rgba(255, 61, 127, 0.2);
    }
    .guide-card .card-tag.new {
        background: rgba(0, 212, 255, 0.12);
        color: var(--accent);
        border-color: rgba(0, 212, 255, 0.15);
    }
    .guide-card .card-title {
        font-size: 1.15rem;
        font-weight: 700;
        line-height: 1.5;
        margin-bottom: 10px;
        color: var(--text-primary);
        transition: var(--transition);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .guide-card:hover .card-title { color: var(--primary-light); }
    .guide-card .card-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.7;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        flex: 1;
    }
    .guide-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 0.85rem;
        color: var(--text-muted);
        padding-top: 14px;
        border-top: 1px solid var(--border-color);
    }
    .guide-card .card-meta i { margin-right: 4px; color: var(--primary-light); }
    .guide-card .card-meta .views i { color: var(--text-muted); }

    @media (max-width: 1024px) {
        .guide-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 620px) {
        .guide-grid { grid-template-columns: 1fr; }
        .section-header h2 { font-size: 1.4rem; }
        .guide-card .card-body { padding: 16px 18px 18px; }
        .guide-card .card-title { font-size: 1.05rem; }
    }

    /* ===== 热门攻略精选 ===== */
    .hot-section {
        padding: 60px 0;
        background: var(--bg-section);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    .hot-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .hot-card {
        display: flex;
        gap: 18px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 18px 20px;
        transition: var(--transition);
        align-items: flex-start;
    }
    .hot-card:hover {
        border-color: rgba(108, 60, 240, 0.3);
        box-shadow: var(--shadow-sm), 0 0 20px var(--primary-glow);
        transform: translateX(4px);
    }
    .hot-card .hot-num {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--primary);
        opacity: 0.5;
        line-height: 1;
        min-width: 40px;
        font-style: italic;
    }
    .hot-card .hot-info { flex: 1; }
    .hot-card .hot-info h4 {
        font-size: 1.05rem;
        font-weight: 700;
        margin-bottom: 6px;
        color: var(--text-primary);
        transition: var(--transition);
    }
    .hot-card:hover .hot-info h4 { color: var(--primary-light); }
    .hot-card .hot-info p {
        font-size: 0.88rem;
        color: var(--text-secondary);
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .hot-card .hot-stat {
        display: flex;
        align-items: center;
        gap: 14px;
        margin-top: 8px;
        font-size: 0.8rem;
        color: var(--text-muted);
    }
    .hot-card .hot-stat i { color: var(--primary-light); margin-right: 3px; }

    @media (max-width: 768px) {
        .hot-grid { grid-template-columns: 1fr; }
        .hot-card { padding: 14px 16px; }
        .hot-card .hot-num { font-size: 1.5rem; min-width: 32px; }
    }

    /* ===== 攻略专题 ===== */
    .topic-section {
        padding: 60px 0;
    }
    .topic-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .topic-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 28px 22px 22px;
        text-align: center;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .topic-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        opacity: 0;
        transition: var(--transition);
    }
    .topic-card:hover::before { opacity: 1; }
    .topic-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md), 0 0 25px var(--primary-glow);
        border-color: rgba(108, 60, 240, 0.3);
    }
    .topic-card .topic-icon {
        font-size: 2.2rem;
        color: var(--primary-light);
        margin-bottom: 14px;
        display: block;
        transition: var(--transition);
    }
    .topic-card:hover .topic-icon { transform: scale(1.1); color: var(--accent); }
    .topic-card h4 {
        font-size: 1.05rem;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--text-primary);
    }
    .topic-card p {
        font-size: 0.88rem;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: 14px;
    }
    .topic-card .topic-count {
        display: inline-block;
        font-size: 0.8rem;
        color: var(--text-muted);
        background: rgba(108, 60, 240, 0.1);
        padding: 4px 16px;
        border-radius: 20px;
        border: 1px solid var(--border-color);
    }

    @media (max-width: 1024px) {
        .topic-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 520px) {
        .topic-grid { grid-template-columns: 1fr; }
        .topic-card { padding: 20px 16px; }
    }

    /* ===== FAQ ===== */
    .faq-section {
        padding: 60px 0;
        background: var(--bg-section);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover { border-color: rgba(108, 60, 240, 0.25); }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 22px;
        font-weight: 600;
        font-size: 1.02rem;
        color: var(--text-primary);
        cursor: pointer;
        transition: var(--transition);
        gap: 12px;
    }
    .faq-question i { color: var(--primary-light); transition: var(--transition); font-size: 0.9rem; }
    .faq-question.open i { transform: rotate(180deg); color: var(--secondary); }
    .faq-question:hover { background: rgba(108, 60, 240, 0.05); }
    .faq-answer {
        padding: 0 22px 20px;
        color: var(--text-secondary);
        font-size: 0.95rem;
        line-height: 1.8;
        display: none;
    }
    .faq-answer.open { display: block; }
    .faq-answer a { color: var(--primary-light); text-decoration: underline; }
    .faq-answer a:hover { color: var(--accent); }

    @media (max-width: 520px) {
        .faq-question { padding: 14px 16px; font-size: 0.95rem; }
        .faq-answer { padding: 0 16px 16px; font-size: 0.9rem; }
    }

    /* ===== CTA ===== */
    .cta-section {
        padding: 70px 0;
        background: linear-gradient(135deg, rgba(108,60,240,0.12), rgba(255,61,127,0.08)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        border-bottom: 1px solid var(--border-color);
        text-align: center;
    }
    .cta-section h2 {
        font-size: 2.2rem;
        font-weight: 800;
        margin-bottom: 16px;
        letter-spacing: 1px;
    }
    .cta-section p {
        font-size: 1.1rem;
        color: var(--text-secondary);
        max-width: 580px;
        margin: 0 auto 32px;
        line-height: 1.8;
    }
    .cta-section .cta-buttons {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    .cta-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 36px;
        border-radius: var(--radius-sm);
        font-weight: 700;
        font-size: 1.05rem;
        transition: var(--transition);
    }
    .cta-btn.primary {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        box-shadow: 0 0 25px var(--primary-glow);
    }
    .cta-btn.primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 0 45px var(--primary-glow);
        background: linear-gradient(135deg, var(--primary-light), var(--primary));
    }
    .cta-btn.secondary {
        background: transparent;
        color: var(--text-primary);
        border: 2px solid var(--border-color);
    }
    .cta-btn.secondary:hover {
        border-color: var(--primary);
        background: rgba(108, 60, 240, 0.1);
        transform: translateY(-3px);
    }

    @media (max-width: 768px) {
        .cta-section h2 { font-size: 1.6rem; }
        .cta-section p { font-size: 1rem; }
        .cta-btn { padding: 12px 28px; font-size: 0.95rem; }
    }
    @media (max-width: 520px) {
        .cta-section { padding: 50px 0; }
        .cta-section h2 { font-size: 1.3rem; }
        .cta-buttons { flex-direction: column; align-items: center; }
        .cta-btn { width: 100%; max-width: 300px; justify-content: center; }
    }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-card);
        border-top: 1px solid var(--border-color);
        padding: 60px 0 30px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    .footer-brand .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.3rem;
        font-weight: 700;
        margin-bottom: 16px;
        color: var(--text-primary);
    }
    .footer-brand .footer-logo i { color: var(--primary-light); font-size: 1.5rem; }
    .footer-brand p {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.8;
        max-width: 320px;
    }
    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 18px;
        color: var(--text-primary);
        letter-spacing: 0.5px;
    }
    .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
    .footer-col ul li a {
        color: var(--text-secondary);
        font-size: 0.9rem;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }
    .footer-col ul li a i { font-size: 0.7rem; color: var(--primary-light); transition: var(--transition); }
    .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
    .footer-col ul li a:hover i { color: var(--accent); }

    .footer-bottom {
        border-top: 1px solid var(--border-color);
        padding-top: 24px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        font-size: 0.85rem;
        color: var(--text-muted);
    }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: var(--radius-sm);
        background: rgba(108, 60, 240, 0.1);
        color: var(--text-secondary);
        border: 1px solid var(--border-color);
        transition: var(--transition);
        font-size: 1.1rem;
    }
    .footer-social a:hover {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        transform: translateY(-3px);
        box-shadow: 0 0 20px var(--primary-glow);
    }

    @media (max-width: 1024px) {
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    }
    @media (max-width: 620px) {
        .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .footer-brand p { max-width: 100%; }
    }

    /* ===== 分页 ===== */
    .pagination {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
        margin-top: 40px;
        flex-wrap: wrap;
    }
    .pagination a, .pagination span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 42px;
        height: 42px;
        padding: 0 14px;
        border-radius: var(--radius-sm);
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        font-weight: 500;
        font-size: 0.9rem;
        transition: var(--transition);
    }
    .pagination a:hover {
        border-color: var(--primary);
        color: var(--text-primary);
        background: rgba(108, 60, 240, 0.1);
    }
    .pagination .active {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        box-shadow: 0 0 20px var(--primary-glow);
    }
    .pagination .disabled { opacity: 0.4; pointer-events: none; }

    /* ===== 回到顶部 ===== */
    .back-top {
        position: fixed;
        bottom: 30px;
        right: 30px;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: var(--primary);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        box-shadow: 0 0 25px var(--primary-glow);
        border: 1px solid rgba(255,255,255,0.1);
        transition: var(--transition);
        z-index: 99;
        opacity: 0;
        pointer-events: none;
        transform: translateY(20px);
    }
    .back-top.visible { opacity: 1; pointer-events: all; transform: translateY(0); }
    .back-top:hover { background: var(--primary-light); transform: translateY(-4px); box-shadow: 0 0 40px var(--primary-glow); }

    @media (max-width: 520px) {
        .back-top { bottom: 20px; right: 20px; width: 42px; height: 42px; font-size: 1rem; }
    }

    /* ===== 辅助 ===== */
    .text-center { text-align: center; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mb-16 { margin-bottom: 16px; }
    .gap-8 { gap: 8px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }