/* roulang page: index */
:root {
  --primary: #1a3c6e;
  --primary-light: #2a5a9e;
  --primary-dark: #0f2444;
  --accent: #e8a838;
  --accent-light: #f0c06a;
  --accent-dark: #c88a1e;
  --bg: #f7f9fc;
  --bg-card: #ffffff;
  --bg-alt: #eef2f7;
  --text: #1e293b;
  --text-light: #64748b;
  --text-inverse: #ffffff;
  --border: #dce2ec;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 20px rgba(26, 60, 110, 0.08);
  --shadow-lg: 0 12px 40px rgba(26, 60, 110, 0.14);
  --shadow-hover: 0 12px 36px rgba(26, 60, 110, 0.18);
  --transition: 0.3s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }
button, input, select, textarea { font-family: inherit; font-size: 1rem; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }

/* Header & Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  display: flex; align-items: center;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 700; color: var(--primary); flex-shrink: 0; }
.logo i { font-size: 1.6rem; color: var(--accent); }
.logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.main-nav { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.main-nav a {
  padding: 8px 18px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 500; color: var(--text-light);
  transition: all var(--transition); position: relative;
}
.main-nav a:hover { color: var(--primary); background: rgba(26,60,110,0.06); }
.main-nav a.active { color: var(--primary); background: rgba(26,60,110,0.10); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box {
  display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border);
  border-radius: 40px; padding: 0 16px; transition: all var(--transition);
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,60,110,0.12); }
.search-box input { border: none; background: transparent; padding: 8px 8px; outline: none; width: 140px; font-size: 0.9rem; color: var(--text); }
.search-box input::placeholder { color: var(--text-light); }
.search-box button { background: none; border: none; color: var(--text-light); cursor: pointer; padding: 6px 0 6px 8px; font-size: 1rem; transition: color var(--transition); }
.search-box button:hover { color: var(--primary); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px; border-radius: 40px; font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,60,110,0.25); }
.btn-accent { background: var(--accent); color: #1a1a1a; }
.btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.35); }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 6px 16px; font-size: 0.85rem; }
.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px; }
@media (max-width: 900px) {
  .main-nav { display: none; position: absolute; top: var(--nav-height); left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); gap: 4px; }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
  .mobile-toggle { display: block; }
  .search-box input { width: 100px; }
  .nav-actions .btn span { display: none; }
}

/* Hero */
.hero {
  position: relative; min-height: 88vh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  overflow: hidden; padding: 80px 0;
}
.hero-bg {
  position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; opacity: 0.18;
  mix-blend-mode: overlay;
}
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 50%, rgba(232,168,56,0.12) 0%, transparent 60%); }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { max-width: 600px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.10); backdrop-filter: blur(8px);
  color: #fff; padding: 6px 18px; border-radius: 40px; font-size: 0.85rem; font-weight: 500; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.15);
}
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 3.2rem; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 1.15rem; color: rgba(255,255,255,0.80); line-height: 1.8; margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-actions .btn-accent { padding: 14px 36px; font-size: 1.05rem; }
.hero-actions .btn-outline { border-color: rgba(255,255,255,0.50); color: #fff; }
.hero-actions .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-card {
  background: rgba(255,255,255,0.08); backdrop-filter: blur(16px); border-radius: var(--radius-lg);
  padding: 40px; border: 1px solid rgba(255,255,255,0.12); width: 100%; max-width: 440px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.20);
}
.hero-card-icon { width: 64px; height: 64px; border-radius: 16px; background: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 2rem; color: #1a1a1a; margin-bottom: 20px; }
.hero-card h3 { color: #fff; font-size: 1.4rem; margin-bottom: 12px; }
.hero-card p { color: rgba(255,255,255,0.75); font-size: 0.95rem; line-height: 1.7; }
.hero-card-steps { margin-top: 20px; display: flex; flex-direction: column; gap: 12px; }
.hero-step { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,0.85); font-size: 0.95rem; }
.hero-step-num { width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: var(--accent); flex-shrink: 0; }
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-card { margin: 0 auto; }
  .hero h1 { font-size: 2.6rem; }
}
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 60px 0; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .hero-card { padding: 28px; }
}

/* Section Common */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 2.2rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; letter-spacing: -0.01em; }
.section-header p { font-size: 1.1rem; color: var(--text-light); max-width: 640px; margin: 0 auto; line-height: 1.7; }
.section-header .badge { display: inline-block; background: rgba(232,168,56,0.15); color: var(--accent-dark); padding: 4px 16px; border-radius: 40px; font-size: 0.85rem; font-weight: 600; margin-bottom: 16px; }
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 1.7rem; }
}

/* Intro cards */
.intro-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.intro-card { background: var(--bg-card); border-radius: var(--radius); padding: 36px 28px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all var(--transition); text-align: center; }
.intro-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.intro-card-icon { width: 56px; height: 56px; border-radius: 16px; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: var(--primary); margin: 0 auto 18px; transition: background var(--transition); }
.intro-card:hover .intro-card-icon { background: var(--primary); color: #fff; }
.intro-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; color: var(--text); }
.intro-card p { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }
@media (max-width: 900px) { .intro-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .intro-grid { grid-template-columns: 1fr; } }

/* Categories / Channels */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cat-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px 20px;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  text-align: center; transition: all var(--transition); cursor: pointer;
  position: relative; overflow: hidden;
}
.cat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--primary); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.cat-card:hover::before { transform: scaleX(1); }
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.cat-card-icon { font-size: 2.2rem; color: var(--primary); margin-bottom: 14px; }
.cat-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.cat-card p { font-size: 0.85rem; color: var(--text-light); }
.cat-card .tag { display: inline-block; margin-top: 12px; background: var(--bg-alt); padding: 2px 14px; border-radius: 20px; font-size: 0.75rem; color: var(--text-light); }
@media (max-width: 1024px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cat-grid { grid-template-columns: 1fr; } }

/* News / CMS List */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--bg-card); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  transition: all var(--transition); display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.news-card-img { width: 100%; height: 200px; object-fit: cover; background: var(--bg-alt); }
.news-card-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.news-card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--text-light); margin-bottom: 10px; }
.news-card-meta .cat-tag { background: rgba(26,60,110,0.08); color: var(--primary); padding: 2px 12px; border-radius: 20px; font-weight: 500; }
.news-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.news-card h3 a { color: var(--text); }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; flex: 1; }
.news-card .read-more { margin-top: 14px; font-size: 0.85rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-card .read-more:hover { gap: 10px; }
.empty-news { grid-column: 1 / -1; text-align: center; padding: 48px 24px; color: var(--text-light); font-size: 1.05rem; background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border); }
@media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .news-grid { grid-template-columns: 1fr; } }

/* Process / Steps */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-grid::before { content: ''; position: absolute; top: 40px; left: 10%; right: 10%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary)); opacity: 0.20; }
.process-step { text-align: center; position: relative; z-index: 2; }
.process-num { width: 56px; height: 56px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; font-weight: 700; margin: 0 auto 18px; box-shadow: 0 6px 20px rgba(26,60,110,0.18); }
.process-step h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
.process-step p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; }
@media (max-width: 1024px) { .process-grid { grid-template-columns: repeat(2, 1fr); } .process-grid::before { display: none; } }
@media (max-width: 520px) { .process-grid { grid-template-columns: 1fr; } }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--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 { padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 600; font-size: 1rem; color: var(--text); background: none; border: none; width: 100%; text-align: left; gap: 12px; transition: color var(--transition); }
.faq-question i { font-size: 1.1rem; color: var(--primary); transition: transform var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 24px; color: var(--text-light); font-size: 0.95rem; line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 400px; padding: 0 24px 20px; }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: 0.08; mix-blend-mode: overlay; }
.cta-content { position: relative; z-index: 2; text-align: center; padding: 60px 0; }
.cta-content h2 { font-size: 2.4rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.cta-content p { font-size: 1.1rem; color: rgba(255,255,255,0.80); max-width: 560px; margin: 0 auto 32px; }
.cta-content .btn-accent { padding: 16px 44px; font-size: 1.1rem; }
@media (max-width: 768px) { .cta-content h2 { font-size: 1.7rem; } }

/* Footer */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.70); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,0.60); font-size: 0.9rem; padding: 4px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; }
.footer-bottom a { color: rgba(255,255,255,0.50); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

/* Badge / Tag */
.badge { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-alt); padding: 4px 14px; border-radius: 40px; font-size: 0.8rem; color: var(--text-light); font-weight: 500; }
.badge-primary { background: rgba(26,60,110,0.10); color: var(--primary); }

/* Utility */
.text-center { text-align: center; }
.mt-24 { margin-top: 24px; }
.mt-48 { margin-top: 48px; }
.gap-16 { gap: 16px; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* Scroll animation helper */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c88a1e;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-light: #edf1f7;
            --bg-dark: #0f1a2e;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #7a8a9a;
            --text-white: #f0f4f8;
            --border: #dce2ec;
            --border-light: #e8edf4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 58, 92, 0.08);
            --shadow-lg: 0 16px 48px rgba(26, 58, 92, 0.12);
            --shadow-xl: 0 24px 64px rgba(26, 58, 92, 0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-h);
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--primary-dark); font-weight: 700; }

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .header-inner { padding: 0 16px; }
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary-dark);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i { color: var(--accent); font-size: 26px; }
        .logo span { background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .main-nav::-webkit-scrollbar { display: none; }
        .main-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .main-nav a i { font-size: 14px; }
        .main-nav a:hover { color: var(--primary); background: var(--bg-light); border-color: var(--border); }
        .main-nav a.active { color: var(--primary-dark); background: rgba(232, 168, 56, 0.18); border-color: var(--accent); font-weight: 600; box-shadow: 0 0 0 1px rgba(232, 168, 56, 0.2); }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 0 14px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232, 168, 56, 0.12); }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 6px;
            font-size: 14px;
            color: var(--text-primary);
            outline: none;
            width: 120px;
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .search-box button { color: var(--text-muted); padding: 6px; font-size: 15px; transition: var(--transition); }
        .search-box button:hover { color: var(--accent); }
        .btn-login {
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            background: transparent;
            border: 1.5px solid var(--border);
            transition: var(--transition);
        }
        .btn-login:hover { border-color: var(--primary-light); color: var(--primary-light); background: var(--bg-light); }
        .btn-primary {
            padding: 10px 26px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 4px 14px rgba(232, 168, 56, 0.3);
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 168, 56, 0.35); color: #fff; }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(232, 168, 56, 0.2); }
        .menu-toggle { display: none; font-size: 24px; color: var(--primary-dark); padding: 6px; }
        @media (max-width: 820px) {
            .main-nav { display: none; }
            .main-nav.open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); padding: 16px 24px 24px; border-bottom: 1px solid var(--border); gap: 4px; box-shadow: var(--shadow-lg); overflow-y: auto; max-height: calc(100vh - var(--header-h)); }
            .main-nav.open a { width: 100%; justify-content: center; padding: 12px 18px; font-size: 16px; }
            .menu-toggle { display: block; }
            .search-box input { width: 80px; }
            .search-box { display: none; }
            .nav-actions .btn-login { display: none; }
        }
        @media (max-width: 480px) {
            .logo { font-size: 18px; gap: 6px; }
            .logo i { font-size: 20px; }
            .btn-primary { padding: 8px 16px; font-size: 13px; }
        }

        /* ===== Article Page ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            margin-top: 0;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-banner .breadcrumb a:hover { color: var(--accent); }
        .article-banner .breadcrumb i { font-size: 12px; color: rgba(255,255,255,0.4); }
        .article-banner .cat-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .article-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            max-width: 860px;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: rgba(255,255,255,0.8);
            font-size: 14px;
        }
        .article-meta i { margin-right: 5px; color: var(--accent); }
        .article-meta span { display: flex; align-items: center; }
        @media (max-width: 768px) {
            .article-banner { padding: 50px 0 40px; }
            .article-banner h1 { font-size: 28px; }
            .article-meta { gap: 12px; font-size: 13px; }
        }
        @media (max-width: 480px) {
            .article-banner h1 { font-size: 22px; }
        }

        .article-main {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 40px; }
        }

        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        @media (max-width: 768px) {
            .article-body { padding: 24px 20px; }
        }

        .article-body .featured-image {
            width: 100%;
            border-radius: var(--radius-md);
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--bg-light);
        }

        .article-content {
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content p { margin-bottom: 1.4em; }
        .article-content h2 { font-size: 26px; margin: 1.6em 0 0.6em; color: var(--primary-dark); }
        .article-content h3 { font-size: 21px; margin: 1.4em 0 0.5em; color: var(--primary); }
        .article-content ul, .article-content ol { margin-bottom: 1.4em; padding-left: 24px; }
        .article-content ul li { list-style: disc; margin-bottom: 6px; }
        .article-content ol li { list-style: decimal; margin-bottom: 6px; }
        .article-content a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
        .article-content a:hover { color: var(--accent); }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-light);
            padding: 16px 22px;
            margin: 1.4em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.2em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .highlight-box {
            background: linear-gradient(135deg, var(--bg-light), #fff);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 1.4em 0;
        }
        .article-content .highlight-box strong { color: var(--accent-dark); }

        .article-footer-bar {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            padding: 4px 14px;
            background: var(--bg-light);
            border-radius: 40px;
            font-size: 13px;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-share a:hover { background: var(--accent); color: #fff; border-color: var(--accent); transform: translateY(-2px); }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--accent); font-size: 18px; }
        .sidebar-card .related-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-card .related-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-card .related-item img {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .sidebar-card .related-item .info { flex: 1; min-width: 0; }
        .sidebar-card .related-item .info h4 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; line-height: 1.4; }
        .sidebar-card .related-item .info h4 a { color: var(--text-primary); }
        .sidebar-card .related-item .info h4 a:hover { color: var(--accent); }
        .sidebar-card .related-item .info .date { font-size: 12px; color: var(--text-muted); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            border: none;
        }
        .sidebar-cta h3 { color: #fff; }
        .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 14px; margin-bottom: 16px; }
        .sidebar-cta .btn-primary { background: var(--accent); color: var(--primary-dark); box-shadow: 0 4px 16px rgba(232,168,56,0.3); width: 100%; justify-content: center; }
        .sidebar-cta .btn-primary:hover { background: var(--accent-light); }

        @media (max-width: 1024px) {
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        }
        @media (max-width: 600px) {
            .article-sidebar { grid-template-columns: 1fr; }
        }

        /* ===== Related Posts Section ===== */
        .related-section {
            padding: 50px 0 70px;
            background: var(--bg-body);
        }
        .related-section .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-section .section-title i { color: var(--accent); margin-right: 10px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 560px) {
            .related-grid { grid-template-columns: 1fr; }
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: var(--bg-light);
        }
        .related-card .card-body { padding: 18px 20px 22px; }
        .related-card .card-body .cat-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(232, 168, 56, 0.15);
            color: var(--accent-dark);
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .related-card .card-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
        .related-card .card-body h3 a { color: var(--primary-dark); }
        .related-card .card-body h3 a:hover { color: var(--accent); }
        .related-card .card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .related-card .card-body .date { font-size: 13px; color: var(--text-muted); margin-top: 10px; display: block; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .not-found-box i { font-size: 56px; color: var(--text-muted); margin-bottom: 16px; }
        .not-found-box h2 { font-size: 28px; color: var(--text-primary); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-box .btn-primary { text-decoration: none; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 30px;
            border-top: 3px solid var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
        }
        .footer-brand .logo { color: #fff; margin-bottom: 14px; }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand .logo i { color: var(--accent); }
        .footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; color: rgba(255,255,255,0.6); }
        .footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.3px; }
        .footer-col a { display: block; color: rgba(255,255,255,0.6); font-size: 14px; padding: 5px 0; transition: var(--transition); }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: var(--accent); }
        .footer-bottom a:hover { text-decoration: underline; }
        @media (max-width: 520px) {
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-light); }
        ::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 480px) {
            .article-body { padding: 16px 14px; }
            .article-content { font-size: 15px; }
            .article-content h2 { font-size: 21px; }
            .article-content h3 { font-size: 18px; }
            .related-section .section-title { font-size: 22px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c48a28;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-soft: #eef1f5;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-white: #ffffff;
            --border-color: #dce1e8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: 0.25s ease;
            --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-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;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--accent-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }
        .logo i {
            color: var(--accent);
            font-size: 26px;
        }
        .logo span {
            color: var(--primary);
        }
        .logo:hover {
            opacity: 0.9;
        }

        /* 主导航 */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
        }
        .main-nav a i {
            font-size: 15px;
        }
        .main-nav a:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .main-nav a.active:hover {
            background: var(--primary-light);
        }

        /* 导航右区 */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-soft);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            width: 200px;
            transition: box-shadow var(--transition);
        }
        .nav-search:focus-within {
            box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.15);
        }
        .nav-search input {
            background: transparent;
            border: none;
            padding: 8px 0;
            width: 100%;
            font-size: 14px;
            color: var(--text-primary);
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search i {
            color: var(--text-muted);
            margin-right: 8px;
            font-size: 14px;
        }
        .nav-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .nav-btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .nav-btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-btn-outline {
            border: 1.5px solid var(--border-color);
            color: var(--text-secondary);
        }
        .nav-btn-outline:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--bg-soft);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            font-size: 24px;
            color: var(--primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: var(--bg-soft);
        }

        /* ===== Banner / 首屏 ===== */
        .category-banner {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-banner h1 {
            font-size: 42px;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: 1px;
        }
        .category-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .category-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .banner-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            color: var(--text-white);
            font-size: 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .banner-tags span i {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .category-banner {
                padding: 60px 0 50px;
                min-height: 240px;
            }
            .category-banner h1 {
                font-size: 28px;
            }
            .category-banner p {
                font-size: 16px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-soft {
            background: var(--bg-soft);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .section-title h2 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .section-title p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            font-size: 17px;
        }
        .section-title .divider {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 14px auto 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .section-title p {
                font-size: 15px;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== 登录方式卡片网格 ===== */
        .login-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .login-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
            text-align: center;
        }
        .login-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .login-card .icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 28px;
            color: var(--primary);
            transition: background var(--transition), color var(--transition);
        }
        .login-card:hover .icon-circle {
            background: var(--primary);
            color: var(--text-white);
        }
        .login-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .login-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }
        .login-card .badge {
            display: inline-block;
            margin-top: 12px;
            padding: 3px 14px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: var(--accent);
            color: var(--primary-dark);
        }

        /* ===== 步骤流程 ===== */
        .steps-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 200px;
            max-width: 260px;
            text-align: center;
            position: relative;
            counter-increment: step;
        }
        .step-item::after {
            content: '→';
            position: absolute;
            top: 40px;
            right: -22px;
            font-size: 28px;
            color: var(--accent);
            font-weight: 300;
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.25);
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .steps-wrap {
                gap: 24px;
            }
            .step-item {
                flex: 1 1 140px;
                max-width: 180px;
            }
            .step-item::after {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .step-item {
                flex: 1 1 100%;
                max-width: 100%;
            }
        }

        /* ===== 内容卡片 (图文区块) ===== */
        .content-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .content-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            border-radius: 0;
        }
        .content-card .card-body {
            padding: 22px 24px 26px;
        }
        .content-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .content-card .card-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .content-card .card-meta i {
            margin-right: 4px;
        }
        .content-card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 40px;
            background: var(--bg-soft);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        @media (max-width: 520px) {
            .content-cards {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 安全提示区块 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }
        .safety-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .safety-item:hover {
            box-shadow: var(--shadow-md);
        }
        .safety-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .safety-item h4 i {
            color: var(--accent);
        }
        .safety-item p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            background: var(--bg-white);
            transition: background var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            background: var(--bg-soft);
        }
        .faq-question i {
            color: var(--accent);
            transition: transform var(--transition);
            font-size: 18px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            color: var(--text-white);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 18px;
            font-weight: 700;
            background: var(--accent);
            color: var(--primary-dark);
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.4);
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232, 168, 56, 0.5);
            color: var(--primary-dark);
        }
        .cta-btn i {
            font-size: 20px;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-btn {
                padding: 14px 30px;
                font-size: 16px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .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, 0.1);
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand .logo span {
            color: var(--text-white);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            padding: 4px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: var(--accent);
        }
        .footer-bottom a:hover {
            text-decoration: underline;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.35s ease;
                pointer-events: none;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                gap: 4px;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .nav-search {
                width: 160px;
            }
            .menu-toggle {
                display: block;
            }
            .nav-actions .nav-btn-outline {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .nav-search {
                width: 120px;
            }
            .nav-btn-primary span {
                display: none;
            }
        }

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

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            padding: 16px 0 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            font-size: 12px;
            color: var(--text-muted);
        }
        .breadcrumb span {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 16px;
        }
        .stat-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .stat-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num i {
            color: var(--accent);
            font-size: 28px;
            margin-right: 6px;
        }
        .stat-item .label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
        }