/* roulang page: index */
:root {
            --primary: #1a1a2e;
            --primary-light: #262648;
            --accent: #d4a853;
            --accent-light: #e8c87a;
            --accent-dark: #b8903a;
            --bg: #f5f2ed;
            --bg-dark: #12121f;
            --white: #ffffff;
            --text: #2d2d2d;
            --text-light: #777;
            --border: rgba(0, 0, 0, .08);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow: 0 10px 30px rgba(0, 0, 0, .08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .14);
            --spacing: 90px;
            --transition: all .35s cubic-bezier(.4, 0, .2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; font-size: 16px; }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button, input { font-family: inherit; font-size: inherit; border: none; background: none; cursor: pointer; }
        ul, ol { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: rgba(18, 18, 31, .92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; max-width: 1280px; margin: 0 auto; padding: 0 28px; }
        .logo { font-size: 24px; font-weight: 800; color: var(--white); letter-spacing: 1px; display: flex; align-items: center; gap: 4px; }
        .logo span { color: var(--accent); }
        .main-nav { display: flex; align-items: center; gap: 8px; }
        .main-nav .nav-link { color: rgba(255, 255, 255, .72); font-size: 15px; font-weight: 500; padding: 8px 18px; border-radius: 999px; letter-spacing: .5px; }
        .main-nav .nav-link:hover { color: var(--white); background: rgba(255, 255, 255, .08); }
        .main-nav .nav-link.active { color: var(--primary); background: var(--accent); font-weight: 700; }
        .header-actions { display: flex; align-items: center; gap: 14px; }
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 999px; font-size: 15px; font-weight: 600; letter-spacing: .5px; transition: var(--transition); }
        .btn-primary { background: var(--accent); color: var(--primary); box-shadow: 0 6px 20px rgba(212, 168, 83, .35); }
        .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(212, 168, 83, .45); }
        .btn-secondary { background: transparent; color: var(--white); border: 1.5px solid rgba(255, 255, 255, .3); }
        .btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
        .btn-dark { background: var(--primary); color: var(--white); }
        .btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow); }
        .btn-sm { padding: 8px 20px; font-size: 14px; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; border-radius: 8px; background: rgba(255, 255, 255, .06); }
        .nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: var(--transition); }
        .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.open span:nth-child(2) { opacity: 0; }
        .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* Hero */
        .hero { position: relative; min-height: 100vh; display: flex; align-items: center; background: var(--bg-dark); padding-top: 72px; overflow: hidden; }
        .hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; opacity: .35; z-index: 1; }
        .hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(18, 18, 31, .97) 15%, rgba(18, 18, 31, .82) 45%, rgba(18, 18, 31, .45) 100%); }
        .hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; padding: 80px 0 90px; }
        .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(212, 168, 83, .15); border: 1px solid rgba(212, 168, 83, .3); color: var(--accent); font-size: 13px; font-weight: 600; padding: 7px 18px; border-radius: 999px; margin-bottom: 24px; letter-spacing: 1px; }
        .hero-badge i { font-size: 12px; }
        .hero h1 { font-size: 56px; line-height: 1.25; color: var(--white); font-weight: 800; margin-bottom: 24px; letter-spacing: 1px; }
        .hero h1 .highlight { color: var(--accent); position: relative; }
        .hero p.lead { color: rgba(255, 255, 255, .78); font-size: 17px; max-width: 540px; margin-bottom: 36px; line-height: 1.9; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
        .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 440px; }
        .hero-stat { text-align: center; padding: 18px 12px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08); border-radius: var(--radius-md); backdrop-filter: blur(10px); }
        .hero-stat .num { font-size: 32px; font-weight: 800; color: var(--accent); display: block; line-height: 1.2; }
        .hero-stat .label { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 4px; }
        .hero-visual { position: relative; display: flex; justify-content: center; }
        .hero-visual-main { width: 100%; max-width: 460px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); border: 1px solid rgba(255, 255, 255, .1); position: relative; }
        .hero-visual-main img { width: 100%; height: 400px; object-fit: cover; }
        .hero-visual-card { position: absolute; background: rgba(26, 26, 46, .92); backdrop-filter: blur(14px); border: 1px solid rgba(255, 255, 255, .12); border-radius: 16px; padding: 18px 22px; box-shadow: 0 15px 40px rgba(0, 0, 0, .4); }
        .hero-visual-card .vc-title { font-size: 13px; color: rgba(255, 255, 255, .6); margin-bottom: 4px; }
        .hero-visual-card .vc-value { font-size: 24px; font-weight: 800; color: var(--accent); }
        .vc-trend { top: 20px; right: -20px; animation: float 4s ease-in-out infinite; }
        .vc-analysis { bottom: 36px; left: -20px; animation: float 5s ease-in-out infinite .5s; }
        @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

        /* Section global */
        .section { padding: var(--spacing) 0; }
        .section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
        .section-header .tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--accent-dark); background: rgba(212, 168, 83, .1); padding: 6px 16px; border-radius: 999px; margin-bottom: 14px; letter-spacing: 1px; }
        .section-header h2 { font-size: 38px; font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 14px; letter-spacing: .5px; }
        .section-header p { color: var(--text-light); font-size: 16px; line-height: 1.8; }

        /* Intro */
        .intro-section { background: var(--white); border-bottom: 1px solid var(--border); }
        .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
        .intro-images { position: relative; }
        .intro-images .img-main { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
        .intro-images .img-main img { height: 380px; object-fit: cover; width: 100%; }
        .intro-images .img-float { position: absolute; bottom: -24px; right: -12px; width: 60%; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-lg); border: 4px solid var(--white); }
        .intro-images .img-float img { height: 180px; object-fit: cover; width: 100%; }
        .intro-content .lead { font-size: 17px; color: var(--text); margin-bottom: 20px; line-height: 1.9; }
        .intro-content p { color: var(--text-light); margin-bottom: 18px; }
        .intro-points { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
        .intro-point { display: flex; align-items: flex-start; gap: 12px; padding: 14px; background: var(--bg); border-radius: var(--radius-sm); }
        .intro-point i { color: var(--accent-dark); font-size: 18px; margin-top: 3px; }
        .intro-point .point-title { font-weight: 700; font-size: 14px; margin-bottom: 2px; }
        .intro-point .point-desc { font-size: 13px; color: var(--text-light); }

        /* Features cards */
        .features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .feature-card { background: var(--white); border-radius: var(--radius-lg); padding: 32px 26px; border: 1px solid var(--border); transition: var(--transition); position: relative; overflow: hidden; }
        .feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent), var(--accent-light)); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212, 168, 83, .3); }
        .feature-card:hover::before { transform: scaleX(1); }
        .feature-icon { width: 56px; height: 56px; background: linear-gradient(135deg, rgba(212, 168, 83, .15), rgba(212, 168, 83, .05)); border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--accent-dark); margin-bottom: 20px; }
        .feature-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
        .feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.75; }

        /* Category showcase */
        .category-section { background: var(--bg-dark); position: relative; overflow: hidden; }
        .category-section::before { content: ''; position: absolute; top: -100px; right: -100px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(212, 168, 83, .08), transparent 70%); }
        .category-section .section-header h2 { color: var(--white); }
        .category-section .section-header p { color: rgba(255, 255, 255, .6); }
        .category-section .section-header .tag { background: rgba(212, 168, 83, .15); color: var(--accent); }
        .category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 360px; display: flex; align-items: flex-end; box-shadow: 0 20px 50px rgba(0, 0, 0, .3); }
        .category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
        .category-card:hover img { transform: scale(1.06); }
        .category-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(18, 18, 31, .92) 100%); }
        .category-card-content { position: relative; z-index: 2; padding: 36px; width: 100%; }
        .category-card-content .cat-tag { display: inline-block; background: rgba(212, 168, 83, .2); color: var(--accent); font-size: 12px; font-weight: 700; padding: 5px 14px; border-radius: 999px; margin-bottom: 14px; letter-spacing: 1px; }
        .category-card-content h3 { color: var(--white); font-size: 28px; font-weight: 800; margin-bottom: 10px; }
        .category-card-content p { color: rgba(255, 255, 255, .7); font-size: 14px; margin-bottom: 20px; max-width: 480px; }
        .category-card-content .btn { background: var(--accent); color: var(--primary); font-size: 14px; font-weight: 700; padding: 10px 24px; }
        .category-card-content .btn:hover { background: var(--accent-light); transform: translateY(-2px); }

        /* News */
        .news-section { background: var(--bg); }
        .news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .news-card { background: var(--white); border-radius: var(--radius-md); padding: 28px; border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; gap: 12px; }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(212, 168, 83, .25); }
        .news-card .news-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--text-light); }
        .news-badge { display: inline-block; background: rgba(212, 168, 83, .12); color: var(--accent-dark); font-weight: 700; padding: 4px 12px; border-radius: 999px; font-size: 12px; }
        .news-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); line-height: 1.5; transition: var(--transition); }
        .news-card:hover h3 { color: var(--accent-dark); }
        .news-card p { font-size: 14px; color: var(--text-light); line-height: 1.75; flex: 1; }
        .news-card time { font-size: 12px; color: #999; display: flex; align-items: center; gap: 6px; }
        .news-card time i { font-size: 13px; }
        .news-empty { grid-column: 1/-1; text-align: center; padding: 60px 24px; background: var(--white); border-radius: var(--radius-md); color: var(--text-light); font-size: 15px; }

        /* Process */
        .process-section { background: var(--white); border-top: 1px solid var(--border); }
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
        .process-grid::before { content: ''; position: absolute; top: 44px; left: 8%; right: 8%; height: 2px; background: linear-gradient(90deg, var(--accent), rgba(212, 168, 83, .15)); z-index: 0; }
        .process-step { position: relative; z-index: 1; text-align: center; }
        .step-num { width: 88px; height: 88px; margin: 0 auto 20px; background: var(--bg-dark); border-radius: 50%; display: flex; align-items: center; justify-content: center; border: 3px solid var(--accent); box-shadow: 0 0 0 6px rgba(212, 168, 83, .1); }
        .step-num span { font-size: 28px; font-weight: 800; color: var(--accent); }
        .process-step h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .process-step p { font-size: 13px; color: var(--text-light); max-width: 180px; margin: 0 auto; line-height: 1.7; }

        /* FAQ */
        .faq-section { background: var(--bg); }
        .faq-list { max-width: 860px; margin: 0 auto; }
        .faq-item { background: var(--white); border-radius: var(--radius-md); margin-bottom: 16px; border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
        .faq-item:hover { border-color: rgba(212, 168, 83, .3); box-shadow: var(--shadow); }
        .faq-question { display: flex; align-items: center; justify-content: space-between; padding: 22px 28px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--primary); }
        .faq-question .faq-icon { width: 32px; height: 32px; border-radius: 50%; background: rgba(212, 168, 83, .1); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--accent-dark); transition: transform .3s; flex-shrink: 0; }
        .faq-item.open .faq-icon { transform: rotate(45deg); background: var(--accent); color: var(--white); }
        .faq-answer { display: none; padding: 0 28px 24px; color: var(--text-light); font-size: 14px; line-height: 1.9; }

        /* CTA */
        .cta-section { position: relative; padding: 90px 0; background: var(--bg-dark); overflow: hidden; text-align: center; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: .3; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 38px; font-weight: 800; color: var(--white); margin-bottom: 16px; letter-spacing: 1px; }
        .cta-section p { color: rgba(255, 255, 255, .75); font-size: 16px; max-width: 600px; margin: 0 auto 36px; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; }

        /* Footer */
        .site-footer { background: #0e0e1a; color: rgba(255, 255, 255, .6); padding: 64px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
        .footer-brand .footer-logo { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 12px; display: inline-block; }
        .footer-brand .footer-logo span { color: var(--accent); }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .5); max-width: 320px; }
        .footer-links h4, .footer-info h4 { color: var(--white); font-size: 16px; font-weight: 700; margin-bottom: 18px; }
        .footer-links a { display: block; color: rgba(255, 255, 255, .55); font-size: 14px; padding: 5px 0; }
        .footer-links a:hover { color: var(--accent); padding-left: 6px; }
        .footer-info p { font-size: 14px; color: rgba(255, 255, 255, .45); padding: 5px 0; display: flex; align-items: center; gap: 10px; }
        .footer-info p i { color: var(--accent); width: 18px; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, .06); padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, .35); }

        /* Responsive */
        @media (max-width: 1024px) {
            :root { --spacing: 64px; }
            .hero-grid { grid-template-columns: 1fr; gap: 40px; padding: 60px 0; text-align: center; }
            .hero p.lead { margin-left: auto; margin-right: auto; }
            .hero-actions, .hero-stats { margin-left: auto; margin-right: auto; justify-content: center; }
            .hero-stats { max-width: 480px; }
            .hero-visual { margin-top: 20px; }
            .vc-trend { right: 0; }
            .vc-analysis { left: 0; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .process-grid { gap: 20px; }
            .process-grid::before { display: none; }
            .intro-grid { grid-template-columns: 1fr; gap: 48px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .main-nav { position: fixed; top: 72px; left: 0; width: 100%; background: rgba(18, 18, 31, .98); flex-direction: column; padding: 24px; gap: 8px; transform: translateY(-130%); transition: transform .4s ease; border-bottom: 1px solid rgba(255, 255, 255, .06); box-shadow: 0 20px 40px rgba(0, 0, 0, .3); }
            .main-nav.open { transform: translateY(0); }
            .main-nav .nav-link { width: 100%; text-align: center; padding: 14px; font-size: 16px; }
            .header-actions .btn-sm { display: none; }
            .nav-toggle { display: flex; }
            .hero h1 { font-size: 38px; }
            .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
            .hero-stat .num { font-size: 24px; }
            .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .news-list { grid-template-columns: 1fr; }
            .section-header h2 { font-size: 30px; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .cta-section h2 { font-size: 30px; }
            .process-grid { grid-template-columns: 1fr 1fr; }
            .process-grid::before { display: none; }
            .process-step { padding: 16px; }
            .step-num { width: 72px; height: 72px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 18px; }
            .hero h1 { font-size: 32px; }
            .hero-stats { grid-template-columns: 1fr 1fr 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: 1fr; }
            .intro-points { grid-template-columns: 1fr; }
            .hero-visual-main img { height: 280px; }
            .btn { width: auto; }
            .hero-actions .btn { flex: 1; }
        }

/* roulang page: article */
:root {
            --primary: #1a2b4b;
            --primary-light: #2c4370;
            --accent: #d4a853;
            --accent-light: #f0d89a;
            --bg: #f5f7fb;
            --card-bg: #ffffff;
            --text: #1f2937;
            --text-weak: #6b7280;
            --border: #e5e9f0;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow: 0 12px 32px rgba(26, 43, 75, 0.08);
            --shadow-hover: 0 18px 40px rgba(26, 43, 75, 0.14);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 2;
        }

        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 4px 20px rgba(26, 43, 75, 0.04);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(26, 43, 75, 0.1);
            background: rgba(255, 255, 255, 0.96);
        }

        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }

        .logo {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--primary);
            display: flex;
            align-items: baseline;
            gap: 2px;
            white-space: nowrap;
        }

        .logo span {
            color: var(--accent);
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            padding: 9px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            background: rgba(212, 168, 83, 0.12);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(26, 43, 75, 0.22);
        }

        .nav-link.active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(26, 43, 75, 0.2);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(26, 43, 75, 0.28);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(26, 43, 75, 0.2);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn-gold {
            background: var(--accent);
            color: #1a2b4b;
            box-shadow: 0 8px 20px rgba(212, 168, 83, 0.3);
        }

        .btn-gold:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(212, 168, 83, 0.4);
            color: #1a2b4b;
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(26, 43, 75, 0.06);
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(26, 43, 75, 0.1);
        }

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

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

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

        /* Hero Banner */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 160px 0 110px;
            text-align: center;
            overflow: hidden;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 28, 48, 0.92), rgba(26, 43, 75, 0.72), rgba(26, 43, 75, 0.82));
            z-index: 1;
        }

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

        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            letter-spacing: 0.3px;
        }

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

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: rgba(212, 168, 83, 0.15);
            color: var(--accent-light);
            border: 1px solid rgba(212, 168, 83, 0.35);
            backdrop-filter: blur(6px);
            margin-bottom: 18px;
        }

        .page-hero h1 {
            font-size: clamp(30px, 5vw, 48px);
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            max-width: 800px;
            margin: 0 auto 20px;
            letter-spacing: 0.5px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            margin-top: 10px;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-meta i {
            color: var(--accent-light);
        }

        /* Article Main */
        .article-section {
            padding: 70px 0;
            position: relative;
        }

        .article-grid {
            display: flex;
            gap: 36px;
            align-items: flex-start;
        }

        .article-main {
            flex: 1 1 72%;
            min-width: 0;
        }

        .article-sidebar {
            flex: 1 1 28%;
            min-width: 280px;
            position: sticky;
            top: 100px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            padding: 40px;
        }

        .article-cover {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 28px;
        }

        .article-cover img {
            width: 100%;
            height: auto;
            transition: transform 0.5s ease;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            padding-bottom: 22px;
            margin-bottom: 26px;
            border-bottom: 1px solid var(--border);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            background: var(--bg);
            padding: 6px 14px;
            border-radius: 999px;
        }

        .meta-item i {
            color: var(--accent);
        }

        .article-content {
            font-size: 16px;
            line-height: 2;
            color: #2d3748;
        }

        .article-content h2 {
            font-size: 24px;
            color: var(--primary);
            margin: 36px 0 16px;
            font-weight: 700;
            line-height: 1.5;
            padding-left: 16px;
            border-left: 4px solid var(--accent);
        }

        .article-content h3 {
            font-size: 20px;
            color: var(--primary);
            margin: 28px 0 12px;
            font-weight: 600;
            line-height: 1.6;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
            box-shadow: var(--shadow);
        }

        .article-content ul {
            margin: 16px 0 22px;
            list-style: none;
        }

        .article-content ul li {
            padding-left: 26px;
            position: relative;
            margin-bottom: 10px;
        }

        .article-content ul li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--accent);
            font-size: 14px;
        }

        .article-tags {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(212, 168, 83, 0.1);
            color: #8a6420;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(212, 168, 83, 0.25);
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        /* Sidebar */
        .sidebar-widget {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            margin-bottom: 24px;
        }

        .widget-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .widget-title::after {
            content: "";
            flex: 1;
            height: 1px;
            background: var(--border);
        }

        .widget-title i {
            color: var(--accent);
        }

        .widget-info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-info-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--text);
            padding: 10px 14px;
            background: var(--bg);
            border-radius: var(--radius-sm);
        }

        .widget-info-list li i {
            color: var(--accent);
            margin-top: 3px;
            width: 18px;
            text-align: center;
        }

        .widget-guide-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius);
            padding: 28px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .widget-guide-card::after {
            content: "\f11b";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            right: -20px;
            bottom: -20px;
            font-size: 100px;
            opacity: 0.08;
            transform: rotate(-12deg);
        }

        .widget-guide-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .widget-guide-card p {
            font-size: 14px;
            opacity: 0.85;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .widget-guide-card .btn {
            position: relative;
            z-index: 2;
        }

        .guide-link-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .guide-link-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 15px 18px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .guide-link-item:hover {
            border-color: rgba(212, 168, 83, 0.4);
            background: rgba(212, 168, 83, 0.06);
            transform: translateX(4px);
            box-shadow: var(--shadow);
        }

        .guide-link-item img {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .guide-link-item .guide-link-text {
            min-width: 0;
        }

        .guide-link-item .guide-link-text strong {
            display: block;
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .guide-link-item .guide-link-text span {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* Not Found */
        .not-found-card {
            text-align: center;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 70px 40px;
            max-width: 640px;
            margin: 0 auto;
        }

        .not-found-card i {
            font-size: 56px;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .not-found-card h2 {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .not-found-card p {
            color: var(--text-weak);
            margin-bottom: 28px;
        }

        /* FAQ Section */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .section-head {
            text-align: center;
            margin-bottom: 46px;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 83, 0.12);
            color: #8a6420;
            font-size: 13px;
            font-weight: 600;
            padding: 7px 18px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-head h2 {
            font-size: clamp(28px, 4vw, 38px);
            color: var(--primary);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto;
        }

        .accordion {
            max-width: 860px;
            margin: 0 auto;
            background: transparent;
            border: none;
        }

        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(26, 43, 75, 0.04);
            transition: var(--transition);
        }

        .accordion-item:hover {
            box-shadow: var(--shadow);
        }

        .accordion-title {
            font-size: 15px;
            font-weight: 600;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            cursor: pointer;
            position: relative;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .accordion-content {
            display: none;
            padding: 0 22px 22px;
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.9;
            border-top: 1px solid var(--border);
            margin-top: 0;
            background: #fff;
        }

        .accordion-item.is-active .accordion-content {
            display: block;
            padding-top: 18px;
        }

        .accordion-content p {
            margin-bottom: 10px;
        }

        /* CTA Section */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            text-align: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(18, 28, 48, 0.92), rgba(26, 43, 75, 0.82));
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: clamp(28px, 4vw, 40px);
            color: #fff;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.9;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Footer */
        .site-footer {
            background: #0f1a2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 70px 0 0;
            position: relative;
            overflow: hidden;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 46px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            display: inline-flex;
            gap: 3px;
            margin-bottom: 18px;
        }

        .footer-brand .footer-logo span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            margin: 0;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-links h4,
        .footer-info h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-links h4::after,
        .footer-info h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .footer-links a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 8px;
        }

        .footer-info p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
        }

        .footer-info i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
            letter-spacing: 0.5px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid {
                flex-direction: column;
            }

            .article-sidebar {
                position: static;
                width: 100%;
                min-width: 0;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .sidebar-widget,
            .widget-guide-card {
                margin-bottom: 0;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 20px;
                height: 68px;
            }

            .main-nav {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 10px 20px 20px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(26, 43, 75, 0.12);
                display: none;
                border-radius: 0 0 20px 20px;
            }

            .main-nav.open {
                display: flex;
            }

            .nav-link {
                padding: 14px 20px;
                border-radius: 12px;
                text-align: center;
            }

            .header-actions .btn {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-hero {
                padding: 130px 0 80px;
            }

            .article-card {
                padding: 24px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-brand {
                grid-column: auto;
            }

            .cta-section {
                padding: 70px 0;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .header-inner {
                padding: 0 16px;
                gap: 10px;
            }

            .logo {
                font-size: 22px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .hero-meta {
                flex-direction: column;
                gap: 8px;
            }

            .article-meta {
                gap: 10px;
            }

            .meta-item {
                font-size: 12px;
                padding: 5px 10px;
            }

            .article-card {
                padding: 20px;
                border-radius: 14px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.95;
            }

            .article-content h2 {
                font-size: 21px;
                margin: 28px 0 14px;
            }

            .widget-guide-card {
                padding: 24px;
            }

            .section-head h2 {
                font-size: 28px;
            }

            .faq-section {
                padding: 60px 0;
            }

            .accordion-title {
                font-size: 14px;
                padding: 16px 18px;
            }

            .accordion-content {
                padding: 0 18px 18px;
            }

            .cta-section p {
                font-size: 15px;
            }

            .not-found-card {
                padding: 50px 24px;
            }

            .footer-grid {
                gap: 30px;
            }
        }

        :focus-visible {
            outline: 3px solid rgba(212, 168, 83, 0.55);
            outline-offset: 2px;
            border-radius: 6px;
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #123a5c;
            --primary-dark: #0b283f;
            --primary-light: #1d5685;
            --accent: #c9a45c;
            --accent-deep: #a9853f;
            --accent-light: #f0e2c8;
            --bg: #f6f3ee;
            --bg-white: #ffffff;
            --bg-light: #f0ece4;
            --text: #1b2631;
            --text-light: #64717e;
            --border: #e3ddd2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(18, 32, 50, 0.06);
            --shadow-md: 0 10px 30px rgba(18, 32, 50, 0.09);
            --shadow-lg: 0 24px 50px rgba(18, 32, 50, 0.13);
            --font-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ============ 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-base);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol,
        li {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        i,
        em {
            font-style: normal;
        }

        /* ============ 容器 ============ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
            width: 100%;
        }

        /* ============ Header 导航（分屏联动版式） ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 32px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            position: relative;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 1px;
            line-height: 1;
        }
        .logo span {
            color: var(--accent);
            font-weight: 800;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }
        .nav-link {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.94rem;
            font-weight: 600;
            color: var(--text-light);
            transition: all 0.25s;
            position: relative;
        }
        .nav-link:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(18, 58, 92, 0.22);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.95rem;
            border: 2px solid transparent;
            transition: all 0.28s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(18, 58, 92, 0.25);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.75);
            color: #fff;
        }
        .btn-outline:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 7px 18px;
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ============ Banner ============ */
        .category-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 130px 0 110px;
            color: #fff;
            overflow: hidden;
        }
        .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 28, 45, 0.92) 0%, rgba(18, 58, 92, 0.78) 60%, rgba(201, 164, 92, 0.3) 100%);
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 800;
            letter-spacing: 3px;
            margin-bottom: 20px;
            box-shadow: 0 4px 16px rgba(201, 164, 92, 0.4);
        }
        .category-banner h1 {
            font-size: 3.1rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .category-banner h1 em {
            color: var(--accent);
            font-style: normal;
        }
        .category-banner p {
            font-size: 1.12rem;
            max-width: 650px;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
        }
        .banner-meta {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }
        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            backdrop-filter: blur(6px);
        }
        .banner-meta i {
            color: var(--accent);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-wrap {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 0;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #c0b9ae;
            font-size: 0.75rem;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 700;
        }

        /* ============ 通用板块 ============ */
        .section {
            padding: 90px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 54px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 800;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 2.3rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: 1px;
        }
        .section-head p {
            color: var(--text-light);
            margin-top: 14px;
            font-size: 1.05rem;
        }
        .section-line {
            width: 52px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 18px auto 0;
        }

        /* ============ 分类介绍区 ============ */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 64px;
            align-items: center;
        }
        .intro-media {
            position: relative;
            border-radius: var(--radius);
        }
        .intro-media img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 1;
        }
        .intro-media::after {
            content: "";
            position: absolute;
            inset: 20px -20px -20px 20px;
            border: 3px solid var(--accent);
            border-radius: var(--radius);
            z-index: 0;
        }
        .intro-content h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .intro-content > p {
            color: var(--text-light);
            font-size: 1.02rem;
            margin-bottom: 24px;
        }
        .intro-list li {
            display: flex;
            gap: 14px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
        }
        .intro-list li:last-child {
            border-bottom: none;
        }
        .intro-list i {
            color: var(--accent);
            font-size: 1.1rem;
            margin-top: 4px;
            width: 22px;
            text-align: center;
        }
        .intro-list strong {
            color: var(--text);
            display: block;
        }
        .intro-list span {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 32px;
        }
        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 14px;
            text-align: center;
            transition: all 0.3s;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .num {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-card .label {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ============ 玩法要点卡片（Foundation Grid） ============ */
        .cards-section {
            background: var(--bg-white);
        }
        .guide-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .guide-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .guide-card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .guide-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .guide-card-cover img {
            transform: scale(1.07);
        }
        .guide-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 800;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .guide-card-body {
            padding: 26px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-body h3 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .guide-card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            flex: 1;
            line-height: 1.7;
        }
        .guide-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .guide-card-link {
            color: var(--primary);
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s;
        }
        .guide-card-link:hover {
            gap: 10px;
            color: var(--accent-deep);
        }

        /* ============ 深度内容列表 ============ */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            max-width: 960px;
            margin: 0 auto;
        }
        .article-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            display: flex;
            overflow: hidden;
            transition: all 0.3s;
        }
        .article-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(6px);
        }
        .article-thumb {
            width: 230px;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .article-item:hover .article-thumb img {
            transform: scale(1.06);
        }
        .article-body {
            padding: 26px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .article-body h3 a:hover {
            color: var(--primary);
        }
        .article-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .article-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .article-meta .tag {
            background: var(--bg-light);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.75rem;
        }

        /* ============ 学习路径时间线 ============ */
        .path-section {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }
        .path-section::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 164, 92, 0.15), transparent 65%);
            top: -80px;
            right: -80px;
        }
        .path-section .section-head h2 {
            color: #fff;
        }
        .path-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .path-section .section-tag {
            background: rgba(201, 164, 92, 0.2);
            color: var(--accent);
        }
        .path-section .section-line {
            background: var(--accent);
        }
        .path {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
            z-index: 1;
        }
        .path::before {
            content: "";
            position: absolute;
            left: 26px;
            top: 12px;
            bottom: 12px;
            width: 3px;
            background: linear-gradient(180deg, var(--accent), rgba(201, 164, 92, 0.25));
            border-radius: 3px;
        }
        .path-item {
            position: relative;
            padding-left: 82px;
            padding-bottom: 44px;
        }
        .path-item:last-child {
            padding-bottom: 0;
        }
        .path-item .step {
            position: absolute;
            left: 0;
            top: 0;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--primary-light);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            border: 3px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 6px rgba(201, 164, 92, 0.3);
            z-index: 1;
        }
        .path-item h3 {
            color: #fff;
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .path-item p {
            color: rgba(255, 255, 255, 0.68);
            font-size: 0.95rem;
            max-width: 600px;
        }

        /* ============ FAQ 手风琴 ============ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg-white);
            transition: box-shadow 0.3s, border-color 0.3s;
        }
        .accordion-item:hover {
            border-color: var(--accent);
        }
        .accordion-item.is-active {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .accordion-title {
            background: var(--bg-white);
            color: var(--text);
            padding: 20px 26px;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            transition: color 0.25s;
        }
        .accordion-title:hover {
            color: var(--primary);
        }
        .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--accent);
            transition: transform 0.3s;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
        }
        .accordion-content {
            background: var(--bg-white);
            padding: 0 26px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .accordion-content p {
            padding-bottom: 24px;
            font-size: 0.95rem;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light) 55%, var(--accent-deep));
            border-radius: 26px;
            padding: 70px 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 80px 0;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .cta-section::before {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            border: 40px solid rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            top: -100px;
            left: -80px;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            width: 200px;
            height: 200px;
            border: 30px solid rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            bottom: -80px;
            right: -40px;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 14px;
        }
        .cta-section p {
            max-width: 600px;
            margin: 0 auto 30px;
            color: rgba(255, 255, 255, 0.85);
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 72px 0 0;
            margin-top: 100px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1.2fr 1.2fr;
            gap: 54px;
            padding-bottom: 50px;
        }
        .footer-logo {
            font-size: 1.6rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-logo span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-links h4,
        .footer-info h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 800;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after,
        .footer-info h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .footer-links a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-info p {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 0.92rem;
        }
        .footer-info i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ============ Focus / Active 状态 ============ */
        a:focus-visible,
        button:focus-visible,
        .accordion-title:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
            border-radius: 6px;
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .section {
                padding: 70px 0;
            }
            .category-banner {
                padding: 100px 0 80px;
            }
            .category-banner h1 {
                font-size: 2.5rem;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 44px;
            }
            .intro-media {
                max-width: 620px;
                margin: 0 auto;
            }
            .article-thumb {
                width: 190px;
            }
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 34px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
                padding: 0 20px;
            }
            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 24px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
                margin-left: 0;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: 12px 20px;
                font-size: 1rem;
            }
            .nav-link.active {
                text-align: center;
            }
            .nav-toggle {
                display: flex;
            }
            .header-actions .btn-sm {
                display: none;
            }

            .category-banner {
                padding: 90px 0 70px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-banner p {
                font-size: 1rem;
            }
            .section-head h2 {
                font-size: 1.7rem;
            }
            .section {
                padding: 58px 0;
            }

            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .stat-card .num {
                font-size: 1.4rem;
            }

            .article-item {
                flex-direction: column;
            }
            .article-thumb {
                width: 100%;
                aspect-ratio: 16 / 7;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }

            .cta-section {
                padding: 50px 28px;
                border-radius: 20px;
                margin: 60px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .logo {
                font-size: 1.35rem;
            }
            .category-banner h1 {
                font-size: 1.7rem;
                letter-spacing: 1px;
            }
            .banner-meta {
                gap: 10px;
            }
            .banner-meta span {
                font-size: 0.78rem;
                padding: 5px 12px;
            }

            .intro-media::after {
                display: none;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-card:last-child {
                grid-column: 1 / -1;
            }

            .section-head h2 {
                font-size: 1.45rem;
            }
            .guide-card-body {
                padding: 20px;
            }
            .article-body {
                padding: 20px;
            }
            .path-item {
                padding-left: 68px;
            }
            .path-item .step {
                width: 44px;
                height: 44px;
                font-size: 0.95rem;
            }
            .path::before {
                left: 21px;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }