/* roulang page: index */
:root {
  --primary: #0d2b4a;
  --primary-light: #1a4a6f;
  --primary-dark: #071b2e;
  --secondary: #f0b830;
  --secondary-light: #f5d060;
  --secondary-dark: #d49f1a;
  --bg-body: #f5f7fa;
  --bg-white: #ffffff;
  --bg-light: #f0f2f5;
  --bg-dark: #0d1b2a;
  --text: #1a1a2e;
  --text-light: #6c757d;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1200px;
  --header-height: 70px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }

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

/* Header & Nav */
.header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-height);
  background: rgba(13, 43, 74, 0.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(240, 184, 48, 0.15);
  z-index: 1000; box-shadow: 0 2px 20px rgba(0,0,0,0.2);
  transition: var(--transition);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-size: 24px; font-weight: 800; color: var(--text-white); letter-spacing: 1px; }
.logo span { color: var(--secondary); }
.logo:hover { color: var(--secondary); }
.logo i { margin-right: 8px; color: var(--secondary); }

.nav { display: flex; align-items: center; gap: 8px; }
.nav a { padding: 8px 18px; border-radius: var(--radius-sm); color: rgba(255,255,255,0.8);
  font-size: 15px; font-weight: 500; transition: var(--transition); white-space: nowrap; }
.nav a:hover { color: var(--secondary); background: rgba(240,184,48,0.12); }
.nav a.active { color: var(--secondary); background: rgba(240,184,48,0.15); font-weight: 600; }

.nav-toggle { display: none; background: none; border: none; color: var(--text-white);
  font-size: 26px; cursor: pointer; padding: 4px; }
.nav-toggle:focus { outline: 2px solid var(--secondary); outline-offset: 4px; border-radius: 4px; }

/* Hero */
.hero {
  padding: 140px 0 80px; margin-top: var(--header-height);
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  position: relative; overflow: hidden; text-align: center;
}
.hero::before { content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23f0b830' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.4; }
.hero-content { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; }
.hero h1 { font-size: 48px; font-weight: 800; color: var(--text-white); line-height: 1.2; margin-bottom: 16px; }
.hero h1 span { color: var(--secondary); }
.hero p { font-size: 20px; color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 620px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px;
  border-radius: var(--radius-sm); font-weight: 600; font-size: 16px; cursor: pointer;
  border: none; transition: var(--transition); white-space: nowrap; }
.btn-primary { background: var(--secondary); color: var(--primary-dark); }
.btn-primary:hover { background: var(--secondary-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(240,184,48,0.35); }
.btn-outline { background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { border-color: var(--secondary); color: var(--secondary); transform: translateY(-2px); }
.btn:focus { outline: 2px solid var(--secondary); outline-offset: 4px; }

/* Section common */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-white); }
.section-dark { background: var(--bg-dark); color: var(--text-white); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 34px; font-weight: 700; color: var(--primary); margin-bottom: 12px; letter-spacing: -0.5px; }
.section-header p { font-size: 18px; color: var(--text-light); max-width: 620px; margin: 0 auto; }
.section-dark .section-header h2 { color: var(--text-white); }
.section-dark .section-header p { color: rgba(255,255,255,0.7); }

/* Grid */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Cards */
.card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px; transition: var(--transition); border: 1px solid var(--border); }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.card-icon { width: 56px; height: 56px; border-radius: var(--radius-sm);
  background: rgba(13, 43, 74, 0.08); display: flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--primary); margin-bottom: 16px; }
.card h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.card p { color: var(--text-light); font-size: 15px; line-height: 1.6; }
.card .tag { display: inline-block; padding: 4px 12px; border-radius: 20px; font-size: 12px;
  font-weight: 600; background: rgba(240,184,48,0.15); color: var(--secondary-dark); margin-bottom: 12px; }

/* Category section */
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.category-card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 32px; transition: var(--transition); border: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: flex-start; }
.category-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.category-card .icon { font-size: 40px; color: var(--secondary); margin-bottom: 12px; }
.category-card h3 { font-size: 20px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
.category-card p { color: var(--text-light); font-size: 15px; margin-bottom: 16px; flex: 1; }
.category-card .btn-sm { padding: 8px 20px; font-size: 14px; border-radius: var(--radius-sm);
  background: var(--primary); color: var(--text-white); font-weight: 500; border: none; cursor: pointer; transition: var(--transition); }
.category-card .btn-sm:hover { background: var(--primary-light); transform: translateY(-2px); }

/* Latest posts / CMS list */
.post-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post-card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 24px; transition: var(--transition); border: 1px solid var(--border);
  display: flex; flex-direction: column; }
.post-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.post-card .meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.post-card .meta .cat { background: rgba(240,184,48,0.15); color: var(--secondary-dark);
  padding: 2px 12px; border-radius: 20px; font-weight: 600; font-size: 12px; }
.post-card h3 { font-size: 18px; font-weight: 600; color: var(--primary); margin-bottom: 8px;
  line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card h3 a { color: inherit; }
.post-card h3 a:hover { color: var(--secondary); }
.post-card p { color: var(--text-light); font-size: 14px; line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
.post-card .time { font-size: 13px; color: var(--text-light); margin-top: 12px; display: flex; align-items: center; gap: 6px; }

.empty-msg { text-align: center; padding: 48px 24px; color: var(--text-light); font-size: 16px; background: var(--bg-white);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px dashed var(--border); }
.empty-msg i { font-size: 40px; color: var(--border); display: block; margin-bottom: 12px; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 32px 16px; background: rgba(255,255,255,0.06);
  border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.08); transition: var(--transition); }
.stat-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.stat-item .num { font-size: 40px; font-weight: 800; color: var(--secondary); line-height: 1.2; }
.stat-item .label { font-size: 15px; color: rgba(255,255,255,0.7); margin-top: 6px; }

/* Features / Steps */
.feature-card { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 32px; transition: var(--transition); border: 1px solid var(--border); text-align: center; }
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card .step { width: 48px; height: 48px; border-radius: 50%; background: var(--secondary);
  color: var(--primary-dark); font-size: 20px; font-weight: 800; display: flex; align-items: center;
  justify-content: center; margin: 0 auto 16px; }
.feature-card h3 { font-size: 20px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
.feature-card p { color: var(--text-light); font-size: 15px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-q { padding: 20px 24px; font-weight: 600; font-size: 17px; color: var(--primary);
  cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  background: none; border: none; width: 100%; text-align: left; transition: var(--transition); }
.faq-q:hover { color: var(--secondary); }
.faq-q i { transition: var(--transition); font-size: 14px; color: var(--text-light); }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--secondary); }
.faq-a { padding: 0 24px 20px; color: var(--text-light); font-size: 15px; line-height: 1.7; display: none; }
.faq-item.open .faq-a { display: block; }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 80px 0; text-align: center; }
.cta-section h2 { font-size: 36px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.cta-section p { font-size: 18px; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 28px; }
.cta-section .btn-primary { background: var(--secondary); color: var(--primary-dark); font-size: 18px; padding: 16px 40px; }
.cta-section .btn-primary:hover { background: var(--secondary-light); box-shadow: 0 8px 30px rgba(240,184,48,0.4); }

/* Footer */
.footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-brand .logo { font-size: 22px; margin-bottom: 12px; display: inline-block; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; }
.footer h4 { font-size: 16px; font-weight: 600; color: var(--text-white); margin-bottom: 16px; }
.footer a { color: rgba(255,255,255,0.6); font-size: 14px; display: block; padding: 4px 0; }
.footer a:hover { color: var(--secondary); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; margin-top: 20px;
  text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom a { display: inline; color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--secondary); }
.footer .social { display: flex; gap: 12px; margin-top: 12px; }
.footer .social a { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
  color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer .social a:hover { background: var(--secondary); color: var(--primary-dark); }

/* Mobile */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 17px; }
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 28px; }
  .grid-2, .grid-3, .post-list { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .nav { position: fixed; top: var(--header-height); left: 0; width: 100%; background: var(--primary-dark);
    flex-direction: column; padding: 16px 24px; gap: 4px; display: none; box-shadow: var(--shadow-lg); }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
  .nav-toggle { display: block; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-item .num { font-size: 30px; }
  .section-header h2 { font-size: 24px; }
  .card, .feature-card, .post-card, .category-card { padding: 20px; }
  .container { padding: 0 16px; }
}

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --accent: #d4a84b;
            --accent-light: #e8c46a;
            --accent-dark: #b88e30;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-light: #eef1f5;
            --bg-dark: #0f1a2e;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-white: #f0f4f8;
            --border: #dce1e8;
            --border-light: #e8ecf2;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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 20px 48px rgba(0,0,0,0.08);
            --shadow-accent: 0 4px 16px rgba(212,168,75,0.25);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-height);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.2rem; }
        h2 { font-size: 1.75rem; }
        h3 { font-size: 1.35rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section { padding: 60px 0; }

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-sm); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.5rem; }
        .logo span { color: var(--accent); font-weight: 700; }
        .logo:hover { color: var(--primary); }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-light); }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav a i { font-size: 0.9rem; opacity: 0.7; }
        .nav a:hover {
            color: var(--primary);
            background: var(--bg-light);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(26,58,107,0.08);
            font-weight: 600;
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }

        /* ===== Article Detail ===== */
        .article-hero {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 48px 0 40px;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a { color: var(--text-muted); }
        .article-hero .breadcrumb a:hover { color: var(--primary); }
        .article-hero .breadcrumb .sep { color: var(--border); }
        .article-hero .breadcrumb .current { color: var(--text-secondary); font-weight: 500; }
        .article-hero .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .article-hero .meta .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(212,168,75,0.15);
            color: var(--accent-dark);
        }
        .article-hero .meta .date {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .meta .date i { font-size: 0.8rem; }
        .article-hero h1 {
            font-size: 2.4rem;
            line-height: 1.35;
            color: var(--primary-dark);
            margin-bottom: 12px;
            max-width: 900px;
        }
        .article-hero .excerpt {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 800px;
            border-left: 4px solid var(--accent);
            padding-left: 20px;
            background: var(--bg-light);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .article-body {
            background: var(--bg-white);
            padding: 48px 0 60px;
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body .content p { margin-bottom: 1.4rem; }
        .article-body .content h2, 
        .article-body .content h3 { margin-top: 2rem; margin-bottom: 1rem; }
        .article-body .content ul, 
        .article-body .content ol { margin-bottom: 1.4rem; padding-left: 1.6rem; list-style: disc; color: var(--text-secondary); }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content a { color: var(--primary-light); text-decoration: underline; }
        .article-body .content a:hover { color: var(--accent); }
        .article-body .content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            margin: 1.6rem 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-body .content img {
            border-radius: var(--radius-md);
            margin: 1.6rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content .wp-caption-text,
        .article-body .content figcaption {
            font-size: 0.9rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: -0.8rem;
            margin-bottom: 1.6rem;
        }
        .article-body .content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            font-size: 0.95rem;
        }
        .article-body .content th, 
        .article-body .content td {
            border: 1px solid var(--border);
            padding: 10px 16px;
            text-align: left;
        }
        .article-body .content th {
            background: var(--bg-light);
            font-weight: 600;
            color: var(--text-primary);
        }
        .article-body .content td { color: var(--text-secondary); }

        .article-body .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-body .not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            display: block;
        }
        .article-body .not-found h2 {
            font-size: 1.8rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .article-body .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-body .not-found .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== Article Footer / Share ===== */
        .article-footer-bar {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            padding: 32px 0;
        }
        .article-footer-bar .inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-footer-bar .tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-footer-bar .tags span {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .article-footer-bar .tags .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            background: var(--bg-light);
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .article-footer-bar .tags .tag:hover {
            background: var(--primary);
            color: var(--text-white);
        }
        .article-footer-bar .share {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-footer-bar .share span {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-footer-bar .share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-secondary);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .article-footer-bar .share a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== Related / CTA ===== */
        .related-section {
            background: var(--bg-light);
            padding: 56px 0;
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-section .section-title h2 {
            font-size: 1.8rem;
            color: var(--primary-dark);
        }
        .related-section .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .related-card .cat {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(212,168,75,0.12);
            display: inline-block;
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
        }
        .related-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card h3 a { color: var(--text-primary); }
        .related-card h3 a:hover { color: var(--primary); }
        .related-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .related-card .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 12px;
            display: block;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 56px 0;
            text-align: center;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            background: var(--accent);
            color: var(--primary-dark);
        }
        .btn i { font-size: 0.95rem; }
        .btn:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-accent);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.3);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: none;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer .logo { color: var(--text-white); }
        .footer .logo span { color: var(--accent); }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.55);
            margin: 16px 0 20px;
            line-height: 1.7;
        }
        .footer .social {
            display: flex;
            gap: 12px;
        }
        .footer .social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.5);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .footer .social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .footer h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer a {
            display: block;
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { display: inline; color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); padding-left: 0; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            body { padding-top: 64px; }
            :root { --header-height: 64px; }
            h1 { font-size: 1.7rem; }
            h2 { font-size: 1.4rem; }
            .container { padding: 0 16px; }
            section { padding: 40px 0; }

            .nav-toggle { display: block; }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 999;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav a.active::after { display: none; }
            .nav a.active { background: rgba(26,58,107,0.08); }

            .article-hero { padding: 32px 0 28px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .excerpt { font-size: 1rem; padding: 12px 16px; }
            .article-body { padding: 32px 0 40px; }
            .article-body .content { font-size: 1rem; }

            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .article-footer-bar .inner { flex-direction: column; align-items: flex-start; }
            .cta-section h2 { font-size: 1.4rem; }
            .btn { padding: 10px 24px; font-size: 0.95rem; }
        }

        @media (max-width: 520px) {
            .article-hero .meta { gap: 10px; }
            .article-hero .meta .badge { font-size: 0.75rem; padding: 3px 10px; }
            .article-hero h1 { font-size: 1.35rem; }
            .logo { font-size: 1.3rem; }
            .logo i { font-size: 1.2rem; }
            .container-narrow { padding: 0 12px; }
            .article-body .content blockquote { padding: 12px 16px; }
            .cta-section .btn-group { flex-direction: column; align-items: center; }
            .btn { width: 100%; justify-content: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mb-0 { margin-bottom: 0; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .gap-2 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9b;
            --primary-dark: #0f2440;
            --accent: #d4a843;
            --accent-light: #e8c56d;
            --accent-dark: #b8922e;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f2440;
            --bg-section-alt: #eef1f6;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-light: #7a8a9a;
            --text-white: #ffffff;
            --border: #e2e6ed;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.08);
            --shadow-md: 0 6px 24px rgba(26, 58, 107, 0.12);
            --shadow-lg: 0 12px 40px rgba(26, 58, 107, 0.18);
            --shadow-accent: 0 6px 24px rgba(212, 168, 67, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-height);
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            color: var(--text-primary);
            font-weight: 700;
        }
        h1 {
            font-size: 2.75rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.125rem;
        }
        p {
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.75rem;
        }
        .logo span {
            color: var(--accent);
            font-weight: 700;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav a i {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: color var(--transition);
        }
        .nav a:hover {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.06);
        }
        .nav a:hover i {
            color: var(--primary-light);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.08);
            font-weight: 600;
        }
        .nav a.active i {
            color: var(--accent);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 58, 107, 0.06);
        }

        /* ===== Hero ===== */
        .hero-category {
            padding: calc(var(--header-height) + 48px) 0 56px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-category h1 {
            color: var(--text-white);
            font-size: 2.75rem;
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        .hero-category h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .hero-category p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.15rem;
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 20px;
        }
        .hero-badges span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-badges span i {
            color: var(--accent);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 入口方式卡片 ===== */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .entry-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-align: center;
        }
        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .entry-card .icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.75rem;
            color: var(--text-white);
            box-shadow: 0 6px 16px rgba(26, 58, 107, 0.2);
        }
        .entry-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .entry-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .entry-card .tag {
            display: inline-block;
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent-dark);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== 安全指南 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .safety-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            padding: 24px 28px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .safety-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
        }
        .safety-item .num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .safety-item h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .safety-item p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .number span {
            color: var(--accent);
        }
        .stat-card .label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            text-align: left;
            gap: 16px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(26, 58, 107, 0.03);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.2rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M50 50v-6h-4v6h-6v4h6v6h4v-6h6v-4h-6zM50 10V4h-4v6h-6v4h6v6h4v-6h6v-4h-6zM10 50v-6H6v6H0v4h6v6h4v-6h6v-4H10zM10 10V4H6v6H0v4h6v6h4v-6h6v-4H10z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.4;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2rem;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-accent);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }
        .footer .logo {
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .footer .logo span {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-bottom: 16px;
            max-width: 320px;
        }
        .social {
            display: flex;
            gap: 12px;
        }
        .social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }
        .footer h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer a:not(.logo) {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer a:not(.logo):hover {
            color: var(--accent);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            display: inline !important;
            padding: 0 !important;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .hero-category h1 {
                font-size: 2rem;
            }
            .hero-category p {
                font-size: 1rem;
            }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
                border-bottom: 1px solid var(--border);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.active {
                background: rgba(26, 58, 107, 0.08);
            }
            .nav-toggle {
                display: block;
            }
            .entry-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card .number {
                font-size: 1.8rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .hero-category {
                padding: calc(var(--header-height) + 32px) 0 40px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .safety-item {
                padding: 18px 20px;
            }
            .entry-card {
                padding: 28px 20px 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .hero-category h1 {
                font-size: 1.6rem;
            }
            .hero-category h1 i {
                display: block;
                margin: 0 auto 8px;
            }
            .hero-badges span {
                font-size: 0.8rem;
                padding: 4px 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .number {
                font-size: 1.5rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title h2::after {
                width: 40px;
            }
        }

        /* ===== 滚动渐入辅助 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.in-view {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 焦点可访问性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }