/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0a0a1a;
            --color-primary-light: #1a1a3e;
            --color-secondary: #ffd700;
            --color-secondary-hover: #e6c200;
            --color-accent: #e94560;
            --color-accent-hover: #d63850;
            --color-bg-dark: #0a0a1a;
            --color-bg-light: #f5f5f0;
            --color-bg-card: #ffffff;
            --color-bg-card-dark: #12122a;
            --color-text-light: #ffffff;
            --color-text-muted: rgba(255, 255, 255, 0.7);
            --color-text-dark: #1a1a2e;
            --color-text-secondary: #555;
            --color-border: rgba(255, 255, 255, 0.12);
            --color-border-light: #e0e0d8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-top-height: 40px;
            --nav-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text-dark);
            background: var(--color-bg-light);
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-secondary); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== 顶部信息条 ===== */
        .header-top {
            background: var(--color-primary);
            height: var(--header-top-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--color-border);
        }
        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .header-top__info {
            color: var(--color-text-muted);
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-top__info i { color: var(--color-secondary); font-size: 0.75rem; }
        .header-top__actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-top__actions a {
            color: var(--color-text-muted);
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .header-top__actions a:hover { color: var(--color-secondary); }
        .header-top__actions .btn-ghost {
            color: var(--color-secondary);
            font-weight: 600;
        }
        .header-top__actions .btn-ghost:hover { color: #fff; }

        /* ===== 主导航 ===== */
        .main-nav {
            background: var(--color-primary);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--color-border);
        }
        .main-nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: 0.5px;
        }
        .nav-brand i {
            color: var(--color-secondary);
            font-size: 1.6rem;
        }
        .nav-brand span {
            background: linear-gradient(135deg, var(--color-secondary), #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-secondary);
            transition: var(--transition);
        }
        .nav-links a:hover { color: #fff; }
        .nav-links a:hover::after { width: 100%; }
        .nav-links a.active {
            color: var(--color-secondary);
        }
        .nav-links a.active::after {
            width: 100%;
            background: var(--color-secondary);
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50px;
            padding: 0 16px;
            height: 38px;
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--color-secondary);
            background: rgba(255, 255, 255, 0.12);
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: #fff;
            outline: none;
            width: 160px;
            font-size: 0.85rem;
            padding: 6px 0;
        }
        .nav-search input::placeholder { color: rgba(255, 255, 255, 0.4); }
        .nav-search button {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            padding: 4px 0 4px 8px;
            transition: var(--transition);
        }
        .nav-search button:hover { color: var(--color-secondary); }

        /* 移动端菜单按钮 */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
        }
        .nav-toggle span {
            width: 26px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: calc(var(--header-top-height) + var(--nav-height));
                left: 0;
                right: 0;
                background: var(--color-primary);
                flex-direction: column;
                padding: 24px 20px;
                gap: 16px;
                border-bottom: 2px solid var(--color-secondary);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-links a { font-size: 1rem; padding: 8px 0; }
            .nav-toggle { display: flex; }
            .nav-search { width: 100%; max-width: 200px; }
            .nav-search input { width: 100%; }
            .main-nav .container { gap: 12px; }
            .header-top__info span { display: none; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            overflow: hidden;
        }
        .hero__bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.5;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 26, 0.85) 0%, rgba(10, 10, 26, 0.4) 60%, rgba(10, 10, 26, 0.7) 100%);
        }
        .hero__content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            padding: 40px 24px;
        }
        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--color-secondary);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 20px;
            border-radius: 50px;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero__badge i { font-size: 0.75rem; }
        .hero__title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .hero__title span {
            background: linear-gradient(135deg, var(--color-secondary), #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero__desc {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--color-text-muted);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero__actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 50px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-secondary), #ff8c00);
            color: var(--color-primary);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.4);
            color: var(--color-primary);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
            transform: translateY(-3px);
        }
        .hero__stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--color-border);
        }
        .hero__stat {
            text-align: center;
        }
        .hero__stat-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--color-secondary);
            line-height: 1.2;
        }
        .hero__stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section--dark {
            background: var(--color-bg-dark);
            color: #fff;
        }
        .section--light {
            background: var(--color-bg-light);
        }
        .section--white {
            background: #fff;
        }
        .section__header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section__label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .section__title {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 800;
            color: var(--color-text-dark);
            margin-bottom: 12px;
        }
        .section--dark .section__title { color: #fff; }
        .section__sub {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section--dark .section__sub { color: var(--color-text-muted); }
        .section__divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
            margin: 16px auto 0;
            border-radius: 4px;
        }

        /* ===== 特色卡片网格 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--color-bg-card-dark);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(255, 215, 0, 0.2);
        }
        .feature-card:hover::before { opacity: 1; }
        .feature-card__icon {
            width: 52px;
            height: 52px;
            background: rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-secondary);
            margin-bottom: 18px;
        }
        .feature-card__title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .feature-card__desc {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--color-bg-card);
            box-shadow: var(--shadow-light);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .category-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .category-card__body {
            padding: 24px 22px;
        }
        .category-card__tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .category-card__title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
        }
        .category-card__desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--color-accent);
            font-size: 0.9rem;
        }
        .category-card__link i { font-size: 0.75rem; transition: var(--transition); }
        .category-card__link:hover i { transform: translateX(4px); }

        /* ===== 内容列表 / CMS 资讯 ===== */
        .content-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }
        .content-card {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .content-card__img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .content-card__body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            margin-bottom: 10px;
        }
        .content-card__meta .badge {
            background: rgba(233, 69, 96, 0.1);
            color: var(--color-accent);
            padding: 2px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.7rem;
        }
        .content-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .content-card__title a { color: inherit; }
        .content-card__title a:hover { color: var(--color-accent); }
        .content-card__excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .content-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            border-top: 1px solid var(--color-border-light);
            padding-top: 14px;
        }
        .content-card__footer a {
            color: var(--color-accent);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .content-card__footer a i { font-size: 0.7rem; }
        .empty-msg {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius);
            border: 1px dashed var(--color-border);
        }

        /* ===== 数据 / 流程 ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-bg-card-dark);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            position: relative;
            transition: var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 215, 0, 0.2);
        }
        .process-step__num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-secondary), #ff8c00);
            color: var(--color-primary);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .process-step__title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .process-step__desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* ===== 数据指标 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 215, 0, 0.06);
            border-color: rgba(255, 215, 0, 0.15);
        }
        .stat-item__value {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--color-secondary);
            line-height: 1.2;
        }
        .stat-item__label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: #ccc;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-dark);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 12px;
        }
        .faq-question i {
            color: var(--color-accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), #1a1a3e);
            padding: 72px 0;
            text-align: center;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-section__title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section__desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 16px 44px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--color-primary);
            color: var(--color-text-muted);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--color-border);
        }
        .footer__brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer__brand i { color: var(--color-secondary); }
        .footer__brand span {
            background: linear-gradient(135deg, var(--color-secondary), #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer__about {
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer__heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer__links a {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer__links a:hover { color: var(--color-secondary); }
        .footer__links a i { font-size: 0.7rem; }
        .footer__bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 0.82rem;
        }
        .footer__bottom a { color: var(--color-text-muted); }
        .footer__bottom a:hover { color: var(--color-secondary); }
        .footer__social {
            display: flex;
            gap: 12px;
        }
        .footer__social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            transition: var(--transition);
        }
        .footer__social a:hover {
            background: var(--color-secondary);
            color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer__grid {
                grid-template-columns: 1fr;
            }
            .hero__stats { gap: 20px; }
            .hero__stat-value { font-size: 1.4rem; }
        }

        /* ===== 通用工具 ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== 焦点状态 ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--color-primary); }
        ::-webkit-scrollbar-thumb { background: var(--color-secondary); border-radius: 4px; }

        /* ===== 响应式 Hero ===== */
        @media (max-width: 520px) {
            .hero { min-height: 70vh; }
            .hero__actions .btn { width: 100%; justify-content: center; }
            .hero__stats { flex-direction: column; gap: 16px; }
            .section { padding: 48px 0; }
            .features-grid, .category-grid, .content-list { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-dark: #e76f51;
            --bg-dark: #0a0e17;
            --bg-card: #111827;
            --bg-section: #0f1724;
            --bg-light: #1a2332;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: #1e293b;
            --border-light: #334155;
            --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 32px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 30px rgba(230,57,70,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            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; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        p:last-child { margin-bottom: 0; }

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

        /* ===== 导航 ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-brand span {
            background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            font-size: 0.95rem;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.05);
        }
        .nav-links a.active {
            color: var(--text-primary);
            background: rgba(230,57,70,0.15);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 8px 14px;
            color: var(--text-primary);
            width: 180px;
            font-size: 0.9rem;
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-search button {
            background: transparent;
            color: var(--text-muted);
            padding: 8px 14px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-search button:hover { color: var(--primary); }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== 文章页 Hero ===== */
        .article-hero {
            padding: calc(var(--header-height) + 60px) 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-section) 60%, rgba(230,57,70,0.08) 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230,57,70,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .article-breadcrumb a:hover { color: var(--primary-light); }
        .article-breadcrumb i { font-size: 0.7rem; }
        .article-hero__category {
            display: inline-block;
            background: rgba(230,57,70,0.15);
            color: var(--primary-light);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            border: 1px solid rgba(230,57,70,0.2);
        }
        .article-hero h1 {
            font-size: 2.6rem;
            max-width: 900px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary), #cbd5e1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.25;
        }
        .article-hero__meta {
            display: flex;
            align-items: center;
            gap: 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-hero__meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero__meta i { color: var(--primary); font-size: 0.9rem; }
        .article-hero__desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin-top: 20px;
            border-left: 3px solid var(--primary);
            padding-left: 20px;
        }

        /* ===== 文章正文 ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }
        .article-main .container {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-md);
        }
        .article-body .featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            border: 1px solid var(--border-color);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-body .content h2 {
            font-size: 1.7rem;
            margin: 40px 0 16px;
            color: var(--text-primary);
        }
        .article-body .content h3 {
            font-size: 1.3rem;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }
        .article-body .content p {
            margin-bottom: 1.2rem;
            color: var(--text-secondary);
        }
        .article-body .content ul,
        .article-body .content ol {
            margin: 16px 0 20px;
            padding-left: 24px;
            color: var(--text-secondary);
        }
        .article-body .content ul li,
        .article-body .content ol li {
            margin-bottom: 8px;
            position: relative;
        }
        .article-body .content ul li::marker {
            color: var(--primary);
        }
        .article-body .content ol li::marker {
            color: var(--primary);
            font-weight: 600;
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230,57,70,0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            border: 1px solid var(--border-color);
        }
        .article-body .content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover { color: var(--primary); }

        /* ===== 文章侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li {
            margin-bottom: 14px;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
        .sidebar-list li:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
        .sidebar-list a {
            display: flex;
            gap: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .sidebar-list a:hover { color: var(--text-primary); }
        .sidebar-list .thumb {
            width: 70px;
            height: 50px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }
        .sidebar-list .info .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            background: var(--bg-light);
            color: var(--text-secondary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            background: rgba(230,57,70,0.12);
            color: var(--primary-light);
            border-color: rgba(230,57,70,0.3);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--secondary), var(--bg-card));
            border: 1px solid var(--border-light);
            text-align: center;
            padding: 32px 24px;
        }
        .sidebar-cta h4 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 15px rgba(230,57,70,0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230,57,70,0.4);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            background: rgba(230,57,70,0.06);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        /* ===== 文章导航（上下篇） ===== */
        .article-nav {
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .article-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 45%;
            transition: var(--transition);
        }
        .article-nav a:hover { color: var(--primary-light); }
        .article-nav .prev i { margin-right: 4px; }
        .article-nav .next { text-align: right; }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.8rem;
            margin-bottom: 36px;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .body {
            padding: 20px;
        }
        .related-card .body .cat {
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .body h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .body h4 a { color: var(--text-primary); }
        .related-card .body h4 a:hover { color: var(--primary-light); }
        .related-card .body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 未找到文章 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .footer__brand i {
            color: var(--primary);
            font-size: 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer__brand span {
            background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer__about {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer__heading {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer__links a {
            color: var(--text-muted);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer__links a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer__links a i {
            font-size: 0.7rem;
            color: var(--primary);
        }
        .footer__bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer__bottom span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer__social {
            display: flex;
            gap: 12px;
        }
        .footer__social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer__social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-main .container {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10,14,23,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                border-bottom: 1px solid var(--border-color);
                gap: 4px;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 16px; width: 100%; }
            .nav-links a.active::after { display: none; }
            .nav-search { display: none; }
            .nav-toggle { display: flex; }
            .article-hero { padding: calc(var(--header-height) + 40px) 0 40px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero__desc { font-size: 1rem; }
            .article-body { padding: 24px; }
            .article-body .content { font-size: 1rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .related-card img { height: 200px; }
            .footer__grid { grid-template-columns: 1fr; gap: 28px; }
            .footer__bottom { flex-direction: column; text-align: center; }
            .article-nav { flex-direction: column; }
            .article-nav a { max-width: 100%; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero__meta { gap: 12px; font-size: 0.85rem; }
            .article-body { padding: 16px; border-radius: var(--radius-md); }
            .article-body .content h2 { font-size: 1.3rem; }
            .article-body .content h3 { font-size: 1.1rem; }
            .sidebar-card { padding: 20px; }
            .not-found-box { padding: 40px 16px; }
            .not-found-box h2 { font-size: 1.5rem; }
        }

        /* ===== 实用辅助 ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .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; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b2838;
            --primary-dark: #070d14;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --accent-glow: rgba(240, 165, 0, 0.15);
            --bg: #0a0e17;
            --bg-card: #111927;
            --bg-card-hover: #16202e;
            --bg-section: #0d1420;
            --text: #f0f4f8;
            --text-secondary: #c8d0dc;
            --text-muted: #8899aa;
            --border: #1e2d42;
            --border-light: #2a3d55;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 18px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.6);
            --shadow-accent: 0 4px 24px rgba(240, 165, 0, 0.2);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 80px;
            --topbar-h: 40px;
        }

        /* ===== 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);
            background: var(--bg);
            min-height: 100vh;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        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;
        }

        button {
            cursor: pointer;
        }
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }

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

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: var(--primary-dark);
            border-bottom: 1px solid var(--border);
            height: var(--topbar-h);
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .topbar__info {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar__info i {
            color: var(--accent);
            margin-right: 4px;
            font-size: 12px;
        }
        .topbar__info span {
            color: var(--text-secondary);
        }
        .topbar__cta a {
            color: var(--accent);
            font-weight: 600;
            font-size: 13px;
            padding: 4px 14px;
            border: 1px solid var(--accent);
            border-radius: 20px;
            transition: var(--transition);
        }
        .topbar__cta a:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: var(--primary);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            flex-shrink: 0;
        }
        .nav-brand i {
            color: var(--accent);
            font-size: 26px;
        }
        .nav-brand span {
            background: linear-gradient(135deg, var(--accent), #ffcc44);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-brand:hover span {
            -webkit-text-fill-color: var(--accent-hover);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text);
            background: var(--bg-card);
        }
        .nav-links a.active {
            color: var(--accent);
            background: var(--accent-glow);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 12px;
            height: 40px;
            flex-shrink: 0;
            min-width: 200px;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--accent-glow);
        }
        .nav-search input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text);
            min-width: 0;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search button {
            color: var(--text-muted);
            padding: 4px 0 4px 8px;
            transition: var(--transition);
        }
        .nav-search button:hover {
            color: var(--accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle:hover span {
            background: var(--accent);
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--primary-dark);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .page-hero__bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.7) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero__badge {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent-glow);
            border: 1px solid var(--accent);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 40%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .page-hero__actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-accent);
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(240, 165, 0, 0.1);
        }
        .btn-accent-ghost {
            background: var(--accent-glow);
            color: var(--accent);
            border-color: transparent;
        }
        .btn-accent-ghost:hover {
            background: rgba(240, 165, 0, 0.25);
            transform: translateY(-2px);
        }

        /* ===== 通用板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header__tag {
            display: inline-block;
            padding: 4px 16px;
            background: var(--accent-glow);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--bg-section);
        }
        .section-darker {
            background: var(--primary-dark);
        }

        /* ===== 攻略分类标签 ===== */
        .guide-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
        }
        .guide-tag {
            padding: 10px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }
        .guide-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-glow);
        }
        .guide-tag.active {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-glow);
        }
        .guide-tag i {
            margin-right: 6px;
            font-size: 13px;
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }
        .guide-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: var(--primary-light);
            transition: var(--transition);
        }
        .guide-card:hover .guide-card__img {
            transform: scale(1.02);
        }
        .guide-card__body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card__tag {
            display: inline-block;
            padding: 3px 12px;
            background: var(--accent-glow);
            border-radius: 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .guide-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.3;
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-card__meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-muted);
        }
        .guide-card__meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .guide-card__meta .rating {
            color: var(--accent);
            font-weight: 600;
        }
        .guide-card__link {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .guide-card__link:hover {
            gap: 10px;
            color: var(--accent-hover);
        }

        /* ===== 攻略流程 ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-accent);
            transform: translateY(-4px);
        }
        .process-step__num {
            width: 48px;
            height: 48px;
            background: var(--accent-glow);
            border: 2px solid var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            margin: 0 auto 18px;
            transition: var(--transition);
        }
        .process-step:hover .process-step__num {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .process-step h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .process-step__arrow {
            display: none;
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 18px;
            opacity: 0.5;
        }
        @media (min-width: 1024px) {
            .process-step__arrow {
                display: block;
            }
        }

        /* ===== 热门排行 ===== */
        .rank-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 18px 22px;
            transition: var(--transition);
        }
        .rank-item:hover {
            border-color: var(--accent);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .rank-item__num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: var(--accent);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-item__num {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .rank-item:nth-child(2) .rank-item__num {
            background: rgba(240, 165, 0, 0.6);
            color: var(--text);
        }
        .rank-item:nth-child(3) .rank-item__num {
            background: rgba(240, 165, 0, 0.3);
            color: var(--text-secondary);
        }
        .rank-item__info {
            flex: 1;
            min-width: 0;
        }
        .rank-item__info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
        }
        .rank-item__info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .rank-item__stat {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item__q {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: none;
            border: none;
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-item__q:hover {
            color: var(--accent);
        }
        .faq-item__q i {
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-item__q i {
            transform: rotate(180deg);
        }
        .faq-item__a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-item__a {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            text-align: center;
            background: var(--primary-dark);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 72px 0;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            font-size: 16px;
            padding: 14px 40px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer__brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
        }
        .footer__brand i {
            color: var(--accent);
            font-size: 24px;
        }
        .footer__brand span {
            background: linear-gradient(135deg, var(--accent), #ffcc44);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer__about {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer__heading {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer__heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer__links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer__links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer__links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer__links a i {
            font-size: 10px;
            color: var(--accent);
        }
        .footer__bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer__social {
            display: flex;
            gap: 12px;
        }
        .footer__social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer__social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 38px;
            }
            .section-header h2 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
                --topbar-h: 36px;
            }
            .topbar__info span {
                display: none;
            }
            .topbar__info i {
                margin-right: 0;
            }
            .topbar__cta a {
                font-size: 12px;
                padding: 2px 12px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--primary);
                border-bottom: 2px solid var(--border);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--accent-glow);
            }

            .nav-search {
                min-width: 140px;
                height: 36px;
            }
            .nav-search input {
                font-size: 13px;
            }

            .nav-toggle {
                display: flex;
            }

            .page-hero {
                min-height: 320px;
                padding: 60px 0 40px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero p {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }

            .guide-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .guide-card__img {
                height: 180px;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .process-step {
                padding: 24px 16px 20px;
            }
            .process-step h4 {
                font-size: 16px;
            }

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

            .footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .page-hero__actions .btn {
                width: 100%;
                max-width: 260px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .guide-tags {
                gap: 8px;
            }
            .guide-tag {
                padding: 6px 16px;
                font-size: 13px;
            }
            .nav-search {
                min-width: 100px;
                max-width: 140px;
            }
            .rank-item {
                padding: 14px 16px;
            }
            .rank-item__info h4 {
                font-size: 14px;
            }
        }

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