/* roulang page: index */
/* ===== Design Variables ===== */
    :root {
        --primary: #2d6a4f;
        --primary-light: #40916c;
        --primary-dark: #1b4332;
        --secondary: #d4a373;
        --secondary-light: #e9c9a0;
        --accent: #f4845f;
        --bg-body: #f8faf7;
        --bg-white: #ffffff;
        --bg-light: #edf2ef;
        --bg-dark: #1b4332;
        --text-dark: #1a2e24;
        --text-main: #2d3e34;
        --text-light: #5a6e62;
        --text-white: #f0f7f3;
        --text-muted: #8a9e92;
        --border: #d0dfd6;
        --border-light: #e4ede8;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
        --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
        --shadow-lg: 0 20px 50px rgba(0,0,0,0.10);
        --shadow-xl: 0 30px 70px rgba(0,0,0,0.14);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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);
        font-size: 16px;
        line-height: 1.6;
        color: var(--text-main);
        background: var(--bg-body);
    }
    a { color: var(--primary); 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); }
    button, input, textarea { font-family: inherit; font-size: inherit; }
    ul { list-style: none; }
    .container {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }
    .section-pad { padding: 80px 0; }
    .section-title {
        font-size: 2.2rem;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 12px;
        letter-spacing: -0.02em;
    }
    .section-sub {
        font-size: 1.1rem;
        color: var(--text-light);
        max-width: 640px;
        margin-bottom: 48px;
        line-height: 1.7;
    }
    .text-center { text-align: center; }
    .mx-auto { margin-left: auto; margin-right: auto; }

    /* ===== Header / Nav ===== */
    header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: var(--header-h);
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-light);
        z-index: 1000;
        transition: var(--transition);
    }
    header.scrolled { box-shadow: var(--shadow-sm); }
    .header-inner {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--primary-dark);
        letter-spacing: -0.02em;
    }
    .logo i { font-size: 1.6rem; color: var(--primary); }
    .logo span { background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .nav-main { display: flex; align-items: center; gap: 32px; }
    .nav-main a {
        position: relative;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-main);
        padding: 4px 0;
        transition: var(--transition);
    }
    .nav-main a::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        transition: var(--transition);
    }
    .nav-main a:hover { color: var(--primary); }
    .nav-main a:hover::after { width: 100%; }
    .nav-main a.active { color: var(--primary); font-weight: 600; }
    .nav-main a.active::after { width: 100%; }
    .nav-actions {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg-light);
        border-radius: 100px;
        padding: 0 16px;
        border: 1px solid transparent;
        transition: var(--transition);
    }
    .search-box:focus-within { border-color: var(--primary-light); background: var(--bg-white); box-shadow: 0 0 0 4px rgba(45,106,79,0.08); }
    .search-box i { color: var(--text-muted); font-size: 0.9rem; }
    .search-box input {
        border: none;
        background: transparent;
        padding: 8px 10px;
        font-size: 0.9rem;
        color: var(--text-main);
        outline: none;
        width: 160px;
    }
    .search-box input::placeholder { color: var(--text-muted); }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 24px;
        border-radius: 100px;
        font-weight: 600;
        font-size: 0.95rem;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        text-decoration: none;
        line-height: 1.2;
    }
    .btn-primary {
        background: var(--primary);
        color: var(--text-white);
    }
    .btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(45,106,79,0.30); }
    .btn-outline {
        background: transparent;
        color: var(--primary);
        border: 2px solid var(--border);
    }
    .btn-outline:hover { border-color: var(--primary); background: rgba(45,106,79,0.05); transform: translateY(-2px); }
    .btn-accent {
        background: var(--accent);
        color: #fff;
    }
    .btn-accent:hover { background: #e07050; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(244,132,95,0.35); }
    .btn-lg { padding: 14px 36px; font-size: 1.05rem; }
    .hamburger { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-dark); cursor: pointer; }

    /* ===== Hero ===== */
    .hero {
        padding: 140px 0 100px;
        background: linear-gradient(135deg, rgba(27,66,50,0.92), rgba(45,106,79,0.80)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        color: var(--text-white);
        position: relative;
        overflow: hidden;
    }
    .hero::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 120px;
        background: linear-gradient(to top, var(--bg-body), transparent);
    }
    .hero-content { position: relative; z-index: 2; max-width: 760px; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255,255,255,0.15);
        backdrop-filter: blur(8px);
        padding: 6px 18px;
        border-radius: 100px;
        font-size: 0.85rem;
        font-weight: 500;
        color: var(--text-white);
        margin-bottom: 24px;
        border: 1px solid rgba(255,255,255,0.20);
    }
    .hero h1 {
        font-size: 3.6rem;
        font-weight: 800;
        line-height: 1.15;
        letter-spacing: -0.03em;
        margin-bottom: 20px;
    }
    .hero h1 .highlight { background: linear-gradient(135deg, var(--secondary-light), #fff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .hero p {
        font-size: 1.2rem;
        line-height: 1.7;
        opacity: 0.92;
        margin-bottom: 36px;
        max-width: 600px;
    }
    .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
    .hero-actions .btn { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.25); }
    .hero-actions .btn:hover { background: rgba(255,255,255,0.25); transform: translateY(-2px); }
    .hero-actions .btn-primary { background: var(--secondary); color: var(--text-dark); border: none; }
    .hero-actions .btn-primary:hover { background: var(--secondary-light); }

    /* ===== Features / 核心说明 ===== */
    .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 32px;
    }
    .feature-card {
        background: var(--bg-white);
        border-radius: var(--radius-md);
        padding: 36px 28px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
    .feature-icon {
        width: 56px;
        height: 56px;
        border-radius: 16px;
        background: var(--bg-light);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.6rem;
        color: var(--primary);
        margin-bottom: 20px;
    }
    .feature-card h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-dark); margin-bottom: 10px; }
    .feature-card p { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }

    /* ===== Category Entry / 分类入口 ===== */
    .category-card-wrap {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 28px;
    }
    .category-card {
        position: relative;
        border-radius: var(--radius-md);
        overflow: hidden;
        background: var(--bg-white);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .category-card .card-img {
        height: 200px;
        background: var(--bg-light);
        overflow: hidden;
    }
    .category-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .category-card:hover .card-img img { transform: scale(1.05); }
    .category-card .card-body { padding: 24px 24px 28px; flex: 1; display: flex; flex-direction: column; }
    .category-card .card-body h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; }
    .category-card .card-body p { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; flex: 1; }
    .category-card .card-footer { display: flex; align-items: center; gap: 8px; font-weight: 500; color: var(--primary); font-size: 0.9rem; }
    .category-card .card-footer i { transition: var(--transition); }
    .category-card:hover .card-footer i { transform: translateX(4px); }

    /* ===== Latest Posts / 最新信息 ===== */
    .posts-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 28px;
    }
    .post-card {
        background: var(--bg-white);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
    .post-card .post-img {
        height: 180px;
        background: var(--bg-light);
        overflow: hidden;
    }
    .post-card .post-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .post-card:hover .post-img img { transform: scale(1.04); }
    .post-card .post-body { padding: 20px 22px 24px; }
    .post-card .post-cat {
        display: inline-block;
        padding: 2px 12px;
        border-radius: 100px;
        background: var(--bg-light);
        color: var(--primary);
        font-size: 0.78rem;
        font-weight: 500;
        margin-bottom: 10px;
    }
    .post-card .post-body h3 { font-size: 1.05rem; font-weight: 600; color: var(--text-dark); margin-bottom: 8px; line-height: 1.4; }
    .post-card .post-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; margin-bottom: 14px; }
    .post-card .post-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8rem; color: var(--text-muted); }
    .post-card .post-meta i { margin-right: 4px; }
    .empty-posts {
        grid-column: 1 / -1;
        text-align: center;
        padding: 48px 24px;
        color: var(--text-muted);
        font-size: 1.05rem;
        background: var(--bg-white);
        border-radius: var(--radius-md);
        border: 1px dashed var(--border);
    }

    /* ===== Stats / 数据统计 ===== */
    .stats-section {
        background: var(--bg-dark);
        color: var(--text-white);
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 32px;
        text-align: center;
    }
    .stat-item { padding: 20px 0; }
    .stat-item .num { font-size: 2.8rem; font-weight: 800; color: var(--secondary-light); line-height: 1.2; }
    .stat-item .label { font-size: 0.95rem; color: rgba(255,255,255,0.7); margin-top: 8px; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 800px; margin: 0 auto; }
    .faq-item {
        border-bottom: 1px solid var(--border-light);
        padding: 20px 0;
    }
    .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
        font-size: 1.05rem;
        font-weight: 600;
        color: var(--text-dark);
        gap: 16px;
    }
    .faq-question i { color: var(--primary); font-size: 1.1rem; transition: var(--transition); }
    .faq-item.active .faq-question i { transform: rotate(180deg); }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.3s ease;
        color: var(--text-light);
        line-height: 1.7;
    }
    .faq-item.active .faq-answer { max-height: 300px; padding-top: 12px; }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        color: var(--text-white);
        border-radius: var(--radius-lg);
        padding: 64px 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle at 30% 50%, rgba(212,163,115,0.15), transparent 60%);
        pointer-events: none;
    }
    .cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; position: relative; }
    .cta-section p { font-size: 1.05rem; opacity: 0.88; margin-bottom: 28px; max-width: 540px; margin-left: auto; margin-right: auto; position: relative; }
    .cta-section .btn { position: relative; }

    /* ===== Footer ===== */
    footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.75);
        padding: 48px 0 32px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }
    .footer-brand .logo { color: var(--text-white); margin-bottom: 12px; }
    .footer-brand p { font-size: 0.9rem; line-height: 1.7; opacity: 0.8; max-width: 320px; }
    .footer-col h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 16px; }
    .footer-col a { display: block; font-size: 0.9rem; color: rgba(255,255,255,0.65); padding: 4px 0; }
    .footer-col a:hover { color: var(--secondary-light); }
    .footer-social { display: flex; gap: 12px; margin-top: 16px; }
    .footer-social a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255,255,255,0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .footer-social a:hover { background: var(--primary); transform: translateY(-3px); }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.10);
        padding-top: 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 0.85rem;
        opacity: 0.7;
        flex-wrap: wrap;
        gap: 12px;
    }
    .footer-bottom a { color: rgba(255,255,255,0.7); }
    .footer-bottom a:hover { color: var(--secondary-light); }

    /* ===== Mobile ===== */
    @media (max-width: 1024px) {
        .nav-main { gap: 20px; }
        .hero h1 { font-size: 2.8rem; }
        .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
        .header-inner { padding: 0 16px; }
        .nav-main { display: none; }
        .nav-actions .search-box { display: none; }
        .hamburger { display: block; }
        .nav-main.open {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: var(--header-h);
            left: 0;
            width: 100%;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 20px 24px;
            gap: 16px;
            box-shadow: var(--shadow-md);
        }
        .hero { padding: 120px 0 80px; }
        .hero h1 { font-size: 2.2rem; }
        .hero p { font-size: 1rem; }
        .section-title { font-size: 1.8rem; }
        .section-pad { padding: 56px 0; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .cta-section { padding: 40px 24px; }
        .cta-section h2 { font-size: 1.5rem; }
        .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
        .stat-item .num { font-size: 2rem; }
    }
    @media (max-width: 520px) {
        .hero h1 { font-size: 1.8rem; }
        .hero-actions { flex-direction: column; }
        .hero-actions .btn { width: 100%; justify-content: center; }
        .features-grid { grid-template-columns: 1fr; }
        .posts-grid { grid-template-columns: 1fr; }
        .category-card-wrap { grid-template-columns: 1fr; }
        .stats-grid { grid-template-columns: 1fr 1fr; }
        .btn-lg { padding: 12px 28px; font-size: 0.95rem; }
    }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a8a5c;
            --primary-dark: #0f6a44;
            --primary-light: #e8f5ee;
            --accent: #f5a623;
            --accent-dark: #d48f1a;
            --bg-body: #f6f9f7;
            --bg-white: #ffffff;
            --bg-light: #eaf3ee;
            --text-primary: #1a2a1e;
            --text-secondary: #3d5544;
            --text-muted: #7a8f7e;
            --border-color: #dce6e0;
            --shadow-sm: 0 2px 8px rgba(26, 138, 92, 0.08);
            --shadow-md: 0 6px 24px rgba(26, 138, 92, 0.12);
            --shadow-lg: 0 12px 40px rgba(26, 138, 92, 0.16);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container: 1200px;
            --nav-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-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .nav-main {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            display: flex;
            align-items: center;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .nav-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-main .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .nav-main .logo i {
            font-size: 26px;
            color: var(--accent);
        }
        .nav-main .logo span {
            color: var(--text-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(26, 138, 92, 0.12);
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 6px 8px;
            font-size: 14px;
            color: var(--text-primary);
            width: 140px;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search button {
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 16px;
            padding: 4px;
            transition: var(--transition);
        }
        .nav-search button:hover {
            color: var(--primary);
        }
        .nav-btn {
            padding: 10px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary);
            color: #fff;
            border: none;
            white-space: nowrap;
        }
        .nav-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .nav-btn-light {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
        }
        .nav-btn-light:hover {
            background: var(--bg-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            font-size: 26px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-light);
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            margin-top: var(--nav-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f2a1e 0%, #1a4a34 50%, #0f3a26 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        .article-banner .breadcrumb a:hover {
            color: #fff;
        }
        .article-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }
        .article-banner .article-category {
            display: inline-block;
            padding: 4px 14px;
            background: var(--accent);
            color: #1a2a1e;
            font-size: 13px;
            font-weight: 600;
            border-radius: 40px;
            margin-bottom: 16px;
        }
        .article-banner h1 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            max-width: 860px;
            line-height: 1.25;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
            margin-bottom: 16px;
        }
        .article-banner .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            flex-wrap: wrap;
        }
        .article-banner .article-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
        }
        .article-body .featured-image {
            margin: -40px -44px 32px;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            overflow: hidden;
            max-height: 480px;
        }
        .article-body .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: 0;
        }
        .article-body .content {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-body .content p {
            margin-bottom: 20px;
        }
        .article-body .content h2,
        .article-body .content h3,
        .article-body .content h4 {
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .article-body .content h2 {
            font-size: 26px;
        }
        .article-body .content h3 {
            font-size: 21px;
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content ul,
        .article-body .content ol {
            margin: 16px 0 20px 24px;
            padding-left: 8px;
        }
        .article-body .content li {
            margin-bottom: 8px;
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--primary-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover {
            color: var(--primary-dark);
        }
        .article-tags {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .article-tags .label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .article-tags .tag {
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            border-radius: 40px;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary);
            color: #fff;
        }
        .article-share {
            margin-top: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-share .label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-secondary);
            font-size: 18px;
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 侧栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 26px;
            border: 1px solid var(--border-color);
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
        }
        .sidebar-card .side-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-card .side-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        .sidebar-card .side-list a:last-child {
            border-bottom: none;
        }
        .sidebar-card .side-list a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .sidebar-card .side-list a .num {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sidebar-card .side-list a .num.top {
            background: var(--accent);
            color: #1a2a1e;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 28px 26px;
            text-align: center;
            border: none;
        }
        .sidebar-cta h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.2);
        }
        .sidebar-cta h3 i {
            color: var(--accent);
        }
        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 18px;
            line-height: 1.6;
        }
        .sidebar-cta .btn-cta {
            display: inline-block;
            padding: 12px 32px;
            background: var(--accent);
            color: #1a2a1e;
            font-weight: 700;
            border-radius: 40px;
            font-size: 15px;
            transition: var(--transition);
        }
        .sidebar-cta .btn-cta:hover {
            background: #fff;
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        /* ===== 相关资讯 ===== */
        .related-section {
            padding: 60px 0 70px;
            background: var(--bg-white);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .related-section .section-title h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-primary);
        }
        .related-section .section-title p {
            color: var(--text-muted);
            font-size: 16px;
            margin-top: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .related-card .card-img {
            height: 200px;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 20px 22px 24px;
        }
        .related-card .card-body .cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 12px;
            border-radius: 40px;
            margin-bottom: 10px;
        }
        .related-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h3 a {
            color: var(--text-primary);
        }
        .related-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #0f2a1e 0%, #1a4a34 50%, #0f3a26 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            padding: 14px 36px;
            background: var(--accent);
            color: #1a2a1e;
            font-weight: 700;
            font-size: 16px;
            border-radius: 40px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-primary:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
        }
        .cta-section .btn-outline {
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border-radius: 40px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: var(--transition);
            cursor: pointer;
        }
        .cta-section .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        footer {
            background: #0f1a14;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        footer .footer-brand .logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        footer .footer-brand .logo i {
            color: var(--accent);
        }
        footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 18px;
        }
        footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 20px;
            transition: var(--transition);
        }
        footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        footer .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        footer .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 4px 0;
            transition: var(--transition);
        }
        footer .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .not-found-box i {
            font-size: 56px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 24px;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box .btn-back {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .nav-btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .article-banner {
                padding: 60px 0 40px;
                min-height: 280px;
            }
            .article-banner h1 {
                font-size: 26px;
            }
            .article-banner .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-body {
                padding: 24px 20px;
            }
            .article-body .featured-image {
                margin: -24px -20px 24px;
                max-height: 280px;
            }
            .article-body .content {
                font-size: 16px;
            }
            .article-layout {
                gap: 28px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .related-section .section-title h2 {
                font-size: 24px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-banner h1 {
                font-size: 22px;
            }
            .article-body {
                padding: 18px 14px;
            }
            .article-body .featured-image {
                margin: -18px -14px 18px;
                max-height: 200px;
            }
            .article-body .content {
                font-size: 15px;
            }
            .article-body .content h2 {
                font-size: 20px;
            }
            .article-body .content h3 {
                font-size: 18px;
            }
            .nav-main .logo span {
                font-size: 16px;
            }
            .nav-main .logo i {
                font-size: 20px;
            }
            .nav-btn {
                padding: 6px 14px;
                font-size: 12px;
            }
            .related-card .card-img {
                height: 160px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section .btn-primary,
            .cta-section .btn-outline {
                padding: 10px 24px;
                font-size: 14px;
                width: 100%;
            }
        }

        /* ===== 辅助 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1B4332;
            --primary-light: #2D6A4F;
            --primary-lighter: #40916C;
            --accent: #F4A261;
            --accent-light: #F8C291;
            --bg: #F8F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #1B4332;
            --text: #1A1A2E;
            --text-light: #4A4A5A;
            --text-lighter: #8A8A9A;
            --text-white: #FFFFFF;
            --border: #E8ECEF;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; transition: var(--transition); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.35rem; }
        h4 { font-size: 1.1rem; }
        p { color: var(--text-light); margin-bottom: 0.8rem; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { margin-bottom: 12px; }
        .section-title p { max-width: 640px; margin: 0 auto; color: var(--text-lighter); font-size: 1.05rem; }
        .text-center { text-align: center; }

        /* ===== Header & Navigation (创作者平台风格) ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-h); background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0,0,0,0.02);
        }
        .header-inner {
            max-width: var(--container); margin: 0 auto; padding: 0 24px;
            height: 100%; display: flex; align-items: center; justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.3rem; font-weight: 800; color: var(--primary);
            white-space: nowrap; flex-shrink: 0;
        }
        .logo i { font-size: 1.5rem; color: var(--primary-lighter); }
        .logo span { letter-spacing: 0.3px; }
        .nav-main {
            display: flex; align-items: center; gap: 8px;
            flex: 1; justify-content: center;
        }
        .nav-main a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; color: var(--text-light);
            transition: var(--transition); position: relative; white-space: nowrap;
        }
        .nav-main a:hover { color: var(--primary); background: rgba(27,67,50,0.06); }
        .nav-main a.active {
            color: var(--primary); background: rgba(27,67,50,0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; border-radius: 3px; background: var(--primary-lighter);
        }
        .header-actions {
            display: flex; align-items: center; gap: 12px; flex-shrink: 0;
        }
        .header-actions .search-wrap {
            display: flex; align-items: center; background: var(--bg);
            border: 1px solid var(--border); border-radius: 50px;
            padding: 0 14px; height: 40px; width: 200px;
            transition: var(--transition);
        }
        .header-actions .search-wrap:focus-within {
            border-color: var(--primary-lighter); box-shadow: 0 0 0 3px rgba(64,145,108,0.12);
        }
        .header-actions .search-wrap i { color: var(--text-lighter); font-size: 0.9rem; }
        .header-actions .search-wrap input {
            background: transparent; border: none; padding: 0 8px;
            height: 100%; width: 100%; font-size: 0.9rem; color: var(--text);
        }
        .header-actions .search-wrap input::placeholder { color: var(--text-lighter); }
        .header-actions .btn-primary {
            padding: 8px 22px; border-radius: 50px; background: var(--primary);
            color: #fff; font-weight: 600; font-size: 0.9rem;
            transition: var(--transition); cursor: pointer; white-space: nowrap;
        }
        .header-actions .btn-primary:hover {
            background: var(--primary-light); transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(27,67,50,0.25);
        }
        .mobile-toggle { display: none; background: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px; }

        /* ===== Hero Banner ===== */
        .hero-banner {
            position: relative; padding: 100px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 380px; display: flex; align-items: center;
        }
        .hero-banner::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(27,67,50,0.65) 0%, rgba(27,67,50,0.3) 100%);
        }
        .hero-banner .container { position: relative; z-index: 2; text-align: center; }
        .hero-banner h1 {
            color: #fff; font-size: 3.2rem; font-weight: 800;
            text-shadow: 0 2px 20px rgba(0,0,0,0.15); margin-bottom: 16px;
        }
        .hero-banner p {
            color: rgba(255,255,255,0.9); font-size: 1.2rem; max-width: 600px;
            margin: 0 auto 24px; line-height: 1.6;
        }
        .hero-banner .search-box {
            display: inline-flex; align-items: center; background: rgba(255,255,255,0.95);
            border-radius: 50px; padding: 4px 4px 4px 20px; max-width: 480px; width: 100%;
            box-shadow: 0 8px 32px rgba(0,0,0,0.12);
        }
        .hero-banner .search-box i { color: var(--text-lighter); }
        .hero-banner .search-box input {
            flex: 1; background: transparent; padding: 0 12px; height: 48px;
            font-size: 1rem; color: var(--text); border: none;
        }
        .hero-banner .search-box input::placeholder { color: var(--text-lighter); }
        .hero-banner .search-box button {
            height: 44px; padding: 0 28px; border-radius: 50px; background: var(--primary);
            color: #fff; font-weight: 600; font-size: 0.95rem; cursor: pointer;
            transition: var(--transition); white-space: nowrap;
        }
        .hero-banner .search-box button:hover {
            background: var(--primary-light); transform: scale(1.02);
        }

        /* ===== 热门话题标签 ===== */
        .topic-tags { text-align: center; padding: 32px 0 16px; }
        .topic-tags .tags-wrap {
            display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
            max-width: 720px; margin: 0 auto;
        }
        .topic-tags .tag {
            padding: 8px 22px; border-radius: 50px; background: var(--bg-card);
            border: 1px solid var(--border); font-size: 0.9rem; font-weight: 500;
            color: var(--text-light); cursor: pointer; transition: var(--transition);
        }
        .topic-tags .tag:hover, .topic-tags .tag.active {
            background: var(--primary); color: #fff; border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(27,67,50,0.2);
            transform: translateY(-2px);
        }

        /* ===== 资讯卡片网格 ===== */
        .card-grid {
            display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .card-news {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow-sm); overflow: hidden;
            transition: var(--transition); border: 1px solid var(--border);
            display: flex; flex-direction: column;
        }
        .card-news:hover {
            box-shadow: var(--shadow-md); transform: translateY(-4px);
            border-color: rgba(27,67,50,0.12);
        }
        .card-news .card-img {
            height: 200px; overflow: hidden; position: relative;
        }
        .card-news .card-img img {
            width: 100%; height: 100%; object-fit: cover;
            transition: var(--transition);
        }
        .card-news:hover .card-img img { transform: scale(1.05); }
        .card-news .card-badge {
            position: absolute; top: 14px; left: 14px;
            padding: 4px 14px; border-radius: 50px; font-size: 0.75rem;
            font-weight: 600; background: rgba(27,67,50,0.85); color: #fff;
            backdrop-filter: blur(4px);
        }
        .card-news .card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
        .card-news .card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .card-news .card-body h3 a { color: var(--text); }
        .card-news .card-body h3 a:hover { color: var(--primary-lighter); }
        .card-news .card-body p { font-size: 0.95rem; color: var(--text-lighter); flex: 1; }
        .card-news .card-meta {
            display: flex; justify-content: space-between; align-items: center;
            padding-top: 14px; margin-top: 10px; border-top: 1px solid var(--border);
            font-size: 0.85rem; color: var(--text-lighter);
        }
        .card-news .card-meta i { margin-right: 4px; }

        /* ===== 数据看板 ===== */
        .stats-board {
            background: var(--primary); border-radius: var(--radius-lg);
            padding: 60px 48px; color: #fff;
            background: linear-gradient(135deg, #1B4332 0%, #2D6A4F 100%);
        }
        .stats-board .stats-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px; text-align: center;
        }
        .stats-board .stat-item { padding: 12px 0; }
        .stats-board .stat-number {
            font-size: 2.8rem; font-weight: 800; line-height: 1.2;
            color: var(--accent); margin-bottom: 6px;
        }
        .stats-board .stat-label { font-size: 1rem; opacity: 0.85; font-weight: 400; }

        /* ===== 专题推荐 ===== */
        .feature-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow-sm); padding: 28px 24px;
            border: 1px solid var(--border); transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md); transform: translateY(-4px);
            border-color: rgba(27,67,50,0.12);
        }
        .feature-card .icon-wrap {
            width: 64px; height: 64px; border-radius: 50%;
            background: rgba(27,67,50,0.08); display: flex; align-items: center;
            justify-content: center; margin: 0 auto 18px;
            font-size: 1.8rem; color: var(--primary-lighter);
        }
        .feature-card h3 { margin-bottom: 8px; }
        .feature-card p { font-size: 0.95rem; color: var(--text-lighter); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card); border-radius: var(--radius-sm);
            border: 1px solid var(--border); margin-bottom: 12px;
            overflow: hidden; transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(27,67,50,0.15); }
        .faq-item .faq-q {
            padding: 18px 24px; font-weight: 600; font-size: 1.05rem;
            cursor: pointer; display: flex; justify-content: space-between;
            align-items: center; color: var(--text); user-select: none;
            background: rgba(27,67,50,0.02);
        }
        .faq-item .faq-q i { color: var(--text-lighter); transition: var(--transition); font-size: 1rem; }
        .faq-item.active .faq-q i { transform: rotate(180deg); color: var(--primary-lighter); }
        .faq-item .faq-a {
            padding: 0 24px; max-height: 0; overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light); font-size: 0.98rem; line-height: 1.7;
        }
        .faq-item.active .faq-a {
            max-height: 300px; padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-card); border-radius: var(--radius-lg);
            padding: 56px 48px; text-align: center;
            border: 1px solid var(--border); box-shadow: var(--shadow-sm);
        }
        .cta-section h2 { margin-bottom: 12px; }
        .cta-section p { max-width: 520px; margin: 0 auto 24px; color: var(--text-lighter); }
        .cta-section .cta-form {
            display: flex; max-width: 480px; margin: 0 auto;
            border-radius: 50px; overflow: hidden;
            border: 1px solid var(--border); background: var(--bg);
        }
        .cta-section .cta-form input {
            flex: 1; padding: 0 20px; height: 52px; background: transparent;
            font-size: 1rem; color: var(--text); border: none;
        }
        .cta-section .cta-form input::placeholder { color: var(--text-lighter); }
        .cta-section .cta-form button {
            height: 52px; padding: 0 32px; background: var(--primary);
            color: #fff; font-weight: 600; font-size: 1rem; cursor: pointer;
            transition: var(--transition); white-space: nowrap;
        }
        .cta-section .cta-form button:hover {
            background: var(--primary-light); transform: scale(1.02);
        }

        /* ===== Footer (沿用首页) ===== */
        footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.8);
            padding: 56px 0 0;
        }
        footer .footer-grid {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        footer .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        footer .footer-brand .logo i { color: var(--accent); }
        footer .footer-brand p { font-size: 0.95rem; opacity: 0.7; max-width: 320px; line-height: 1.6; }
        footer .footer-social { display: flex; gap: 14px; margin-top: 20px; }
        footer .footer-social a {
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(255,255,255,0.08); display: flex; align-items: center;
            justify-content: center; color: rgba(255,255,255,0.7); font-size: 1.2rem;
            transition: var(--transition);
        }
        footer .footer-social a:hover {
            background: var(--accent); color: var(--primary); transform: translateY(-2px);
        }
        footer .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
        footer .footer-col a {
            display: block; color: rgba(255,255,255,0.6); font-size: 0.92rem;
            padding: 4px 0; transition: var(--transition);
        }
        footer .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        footer .footer-bottom {
            padding: 24px 0; display: flex; justify-content: space-between;
            align-items: center; flex-wrap: wrap; gap: 12px;
            font-size: 0.88rem; opacity: 0.6;
        }
        footer .footer-bottom a { color: var(--accent); opacity: 0.9; }
        footer .footer-bottom a:hover { opacity: 1; text-decoration: underline; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-banner h1 { font-size: 2.6rem; }
            .card-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
            footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 768px) {
            body { padding-top: 64px; }
            :root { --header-h: 64px; }
            .header-inner { padding: 0 16px; }
            .nav-main { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: 16px 24px; gap: 4px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); }
            .nav-main.open { display: flex; }
            .nav-main a { padding: 12px 16px; width: 100%; text-align: center; }
            .nav-main a.active::after { display: none; }
            .mobile-toggle { display: block; }
            .header-actions .search-wrap { width: 140px; }
            .hero-banner { padding: 60px 0 50px; min-height: 300px; }
            .hero-banner h1 { font-size: 2rem; }
            .hero-banner p { font-size: 1rem; }
            .hero-banner .search-box { flex-direction: column; background: transparent; padding: 0; gap: 8px; }
            .hero-banner .search-box input { width: 100%; border-radius: 50px; background: rgba(255,255,255,0.95); padding: 0 20px; }
            .hero-banner .search-box button { width: 100%; }
            .section { padding: 48px 0; }
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.6rem; }
            .card-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-board { padding: 40px 24px; }
            .stats-board .stat-number { font-size: 2.2rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .cta-section { padding: 40px 24px; }
            .cta-section .cta-form { flex-direction: column; border-radius: var(--radius-sm); border: none; gap: 8px; }
            .cta-section .cta-form input { border-radius: 50px; border: 1px solid var(--border); background: var(--bg-card); }
            .cta-section .cta-form button { border-radius: 50px; }
            footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            footer .footer-bottom { flex-direction: column; text-align: center; }
            .topic-tags .tag { font-size: 0.85rem; padding: 6px 16px; }
        }
        @media (max-width: 520px) {
            .header-actions .search-wrap { display: none; }
            .hero-banner h1 { font-size: 1.6rem; }
            .hero-banner p { font-size: 0.95rem; }
            .card-news .card-img { height: 160px; }
            .stats-board .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
            .faq-item .faq-q { padding: 14px 18px; font-size: 0.98rem; }
        }

        /* ===== 工具类 ===== */
        .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-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }