/* roulang page: index */
:root {
  --primary: #1a56db;
  --primary-dark: #0f3a8e;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-light: #fbbf24;
  --dark: #0f172a;
  --dark-soft: #1e293b;
  --text: #1e293b;
  --text-soft: #475569;
  --text-muted: #94a3b8;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 48px rgba(0,0,0,0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --container: 1200px;
  --header-h: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; border: none; }
button { cursor: pointer; background: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
.section { padding: 80px 0; }
.section-title { font-size: 32px; font-weight: 800; line-height: 1.25; margin-bottom: 12px; color: var(--dark); }
.section-subtitle { font-size: 18px; color: var(--text-soft); max-width: 640px; line-height: 1.6; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .section-subtitle { margin: 0 auto; }
.tag { display: inline-block; padding: 4px 14px; font-size: 13px; font-weight: 600; border-radius: 20px; background: var(--bg-gray); color: var(--text-soft); transition: var(--transition); }
.tag-primary { background: rgba(26,86,219,0.1); color: var(--primary); }
.tag-accent { background: rgba(245,158,11,0.12); color: var(--accent-dark); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; font-size: 16px; font-weight: 600; border-radius: var(--radius-md); transition: var(--transition); border: 2px solid transparent; line-height: 1.4; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.3); }
.btn-accent { background: var(--accent); color: var(--dark); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.3); }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 18px; border-radius: var(--radius-lg); }
.card { background: var(--bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); overflow: hidden; }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.card-body { padding: 24px; }
.card-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--dark); line-height: 1.4; }
.card-text { font-size: 15px; color: var(--text-soft); line-height: 1.6; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
@media (max-width: 1024px) { .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; } }

/* Header */
.header { position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h); background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(226,232,240,0.6); z-index: 1000; transition: var(--transition); }
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { font-size: 24px; font-weight: 800; color: var(--dark); display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--primary); font-size: 28px; }
.logo:hover { color: var(--primary); }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { padding: 8px 18px; font-size: 15px; font-weight: 500; color: var(--text-soft); border-radius: var(--radius-sm); transition: var(--transition); position: relative; }
.nav a:hover { color: var(--primary); background: rgba(26,86,219,0.06); }
.nav a.active { color: var(--primary); font-weight: 600; background: rgba(26,86,219,0.08); }
.nav a.nav-cta { background: var(--primary); color: #fff; padding: 10px 22px; border-radius: var(--radius-md); font-weight: 600; }
.nav a.nav-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26,86,219,0.3); }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav { position: fixed; top: var(--header-h); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 24px 24px; gap: 4px; border-bottom: 1px solid var(--border); transform: translateY(-110%); opacity: 0; transition: var(--transition); pointer-events: none; }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav a { width: 100%; padding: 12px 16px; font-size: 16px; }
  .nav a.nav-cta { text-align: center; margin-top: 8px; }
}

/* Hero */
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; background: var(--dark); overflow: hidden; margin-top: var(--header-h); }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.35; transform: scale(1.05); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.6) 60%, rgba(26,86,219,0.25) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 800px; padding: 80px 0; }
.hero-tag { display: inline-block; padding: 6px 18px; font-size: 14px; font-weight: 600; border-radius: 20px; background: rgba(245,158,11,0.15); color: var(--accent); margin-bottom: 20px; border: 1px solid rgba(245,158,11,0.2); }
.hero h1 { font-size: 52px; font-weight: 900; line-height: 1.15; color: #fff; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 20px; color: rgba(255,255,255,0.75); max-width: 600px; line-height: 1.7; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; margin-top: 48px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); }
.hero-stat h3 { font-size: 36px; font-weight: 800; color: #fff; }
.hero-stat h3 i { color: var(--accent); font-size: 28px; margin-right: 4px; }
.hero-stat p { font-size: 14px; color: rgba(255,255,255,0.5); margin-top: 2px; }
@media (max-width: 768px) {
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 17px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat h3 { font-size: 28px; }
}

/* Features */
.features { background: var(--bg); }
.feature-card { text-align: center; padding: 40px 28px; background: var(--bg); border-radius: var(--radius-lg); border: 1px solid var(--border); transition: var(--transition); }
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); border-color: var(--primary-light); }
.feature-icon { width: 64px; height: 64px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; border-radius: 16px; font-size: 28px; color: #fff; background: var(--primary); }
.feature-icon.gold { background: var(--accent); color: var(--dark); }
.feature-icon.green { background: #10b981; }
.feature-icon.purple { background: #8b5cf6; }
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
.feature-card p { font-size: 15px; color: var(--text-soft); line-height: 1.7; }

/* Advantages */
.advantages { background: var(--bg-soft); }
.advantage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.advantage-img { border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); }
.advantage-img img { width: 100%; height: 400px; object-fit: cover; }
.advantage-text h2 { font-size: 34px; font-weight: 800; margin-bottom: 16px; color: var(--dark); line-height: 1.2; }
.advantage-text p { font-size: 17px; color: var(--text-soft); margin-bottom: 24px; line-height: 1.7; }
.advantage-list { display: flex; flex-direction: column; gap: 16px; }
.advantage-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 16px; color: var(--text); }
.advantage-list li i { color: var(--primary); font-size: 20px; margin-top: 2px; flex-shrink: 0; }
@media (max-width: 768px) {
  .advantage-grid { grid-template-columns: 1fr; gap: 24px; }
  .advantage-text h2 { font-size: 26px; }
  .advantage-img img { height: 240px; }
}

/* Category Section */
.category-section { background: var(--bg); }
.category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; height: 280px; display: flex; align-items: flex-end; }
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.category-card:hover img { transform: scale(1.05); }
.category-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.15) 60%, transparent 100%); }
.category-info { position: relative; z-index: 2; padding: 32px 28px; width: 100%; }
.category-info h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.category-info p { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 12px; }
.category-info .btn { padding: 8px 20px; font-size: 14px; }

/* Latest News */
.news-section { background: var(--bg-soft); }
.news-card { display: flex; flex-direction: column; }
.news-card .card-img { aspect-ratio: 16/9; }
.news-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-muted); margin-bottom: 8px; }
.news-meta .tag { font-size: 12px; padding: 2px 10px; }
.news-card .card-title { font-size: 17px; }
.news-card .card-text { font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Process */
.process { background: var(--dark); }
.process .section-title { color: #fff; }
.process .section-subtitle { color: rgba(255,255,255,0.6); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-grid::before { content: ''; position: absolute; top: 40px; left: 15%; right: 15%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary)); opacity: 0.3; }
.process-step { text-align: center; position: relative; z-index: 2; }
.process-step .step-num { width: 80px; height: 80px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-size: 28px; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-light)); box-shadow: 0 8px 24px rgba(26,86,219,0.3); }
.process-step:nth-child(2) .step-num { background: linear-gradient(135deg, var(--accent), var(--accent-light)); box-shadow: 0 8px 24px rgba(245,158,11,0.3); }
.process-step:nth-child(3) .step-num { background: linear-gradient(135deg, #10b981, #34d399); box-shadow: 0 8px 24px rgba(16,185,129,0.3); }
.process-step:nth-child(4) .step-num { background: linear-gradient(135deg, #8b5cf6, #a78bfa); box-shadow: 0 8px 24px rgba(139,92,246,0.3); }
.process-step h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.6; }
@media (max-width: 768px) {
  .process-grid { grid-template-columns: 1fr 1fr; gap: 32px 16px; }
  .process-grid::before { display: none; }
}
@media (max-width: 520px) {
  .process-grid { grid-template-columns: 1fr; }
}

/* FAQ */
.faq { background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--primary-light); }
.faq-question { width: 100%; padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; font-size: 17px; font-weight: 600; color: var(--dark); background: none; text-align: left; transition: var(--transition); }
.faq-question i { font-size: 14px; color: var(--text-muted); transition: var(--transition); }
.faq-question[aria-expanded="true"] i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 24px; }
.faq-answer.open { max-height: 300px; padding: 0 24px 20px; }
.faq-answer p { font-size: 15px; color: var(--text-soft); line-height: 1.7; }

/* CTA */
.cta { position: relative; padding: 100px 0; background: var(--dark); overflow: hidden; }
.cta-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.2; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(26,86,219,0.3) 100%); }
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; }
.cta-content h2 { font-size: 38px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta-content p { font-size: 18px; color: rgba(255,255,255,0.65); margin-bottom: 32px; line-height: 1.7; }

/* Footer */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,0.06); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand .logo i { color: var(--accent); }
.footer-brand p { font-size: 15px; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.5); font-size: 16px; transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; padding: 6px 0; font-size: 15px; color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 14px; color: rgba(255,255,255,0.35); }
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-content h2 { font-size: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Placeholder for empty CMS */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 16px; background: var(--bg); border-radius: var(--radius-md); border: 1px dashed var(--border); }

/* roulang page: article */
/* ===== Design Variables ===== */
  :root {
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --primary-dark: #5b21b6;
    --secondary: #f97316;
    --secondary-light: #fb923c;
    --secondary-dark: #ea580c;
    --accent: #10b981;
    --dark: #1e1b4b;
    --dark-light: #312e81;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --white: #ffffff;
    --text: #1e293b;
    --text-weak: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
    --shadow-hover: 0 20px 48px rgba(0,0,0,0.12);
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    --max-width: 1200px;
    --nav-height: 72px;
  }

  /* ===== Reset & Base ===== */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
  body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
  }
  a { color: var(--primary); text-decoration: none; transition: var(--transition); }
  a:hover { color: var(--primary-dark); }
  img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
  ul, ol { list-style: none; }
  .container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== Typography ===== */
  h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--dark); font-weight: 700; }
  h1 { font-size: 2.6rem; }
  h2 { font-size: 2rem; margin-bottom: 1rem; }
  h3 { font-size: 1.4rem; margin-bottom: 0.6rem; }
  h4 { font-size: 1.15rem; }
  p { margin-bottom: 1rem; color: var(--text); }
  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(124,58,237,0.10);
    padding: 4px 14px;
    border-radius: 50px;
    letter-spacing: 0.3px;
    margin-bottom: 12px;
    text-transform: uppercase;
  }
  .section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 0.5rem;
  }
  .section-sub {
    font-size: 1.05rem;
    color: var(--text-weak);
    max-width: 640px;
  }

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(124,58,237,0.30);
  }
  .btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(124,58,237,0.35); color: var(--white); }
  .btn:active { transform: translateY(0); }
  .btn-secondary { background: var(--secondary); box-shadow: 0 4px 14px rgba(249,115,22,0.30); }
  .btn-secondary:hover { background: var(--secondary-dark); box-shadow: 0 8px 28px rgba(249,115,22,0.35); }
  .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); box-shadow: none; }
  .btn-outline:hover { background: var(--primary); color: var(--white); box-shadow: 0 4px 14px rgba(124,58,237,0.25); }
  .btn-white { background: var(--white); color: var(--primary); box-shadow: 0 4px 14px rgba(0,0,0,0.08); }
  .btn-white:hover { background: var(--bg-alt); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.10); }
  .btn-sm { padding: 8px 18px; font-size: 0.85rem; }

  /* ===== Header & Nav ===== */
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(30,27,75,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    height: var(--nav-height);
    transition: var(--transition);
  }
  .header.scrolled { background: rgba(30,27,75,0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.25); }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
  }
  .logo i { color: var(--secondary); font-size: 1.6rem; }
  .logo:hover { color: var(--white); opacity: 0.92; }
  .nav { display: flex; align-items: center; gap: 8px; }
  .nav a {
    color: rgba(255,255,255,0.75);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 50px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .nav a:hover { color: var(--white); background: rgba(255,255,255,0.10); }
  .nav a.active { color: var(--white); background: rgba(124,58,237,0.35); }
  .nav .nav-cta {
    background: var(--secondary);
    color: var(--white);
    padding: 8px 22px;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(249,115,22,0.25);
  }
  .nav .nav-cta:hover { background: var(--secondary-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(249,115,22,0.35); }
  .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; background: none; border: none; }
  .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--white); border-radius: 4px; transition: var(--transition); }
  .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
  .hamburger.active span:nth-child(2) { opacity: 0; }
  .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

  /* ===== Article Banner ===== */
  .article-banner {
    position: relative;
    padding: 120px 0 60px;
    background: var(--dark);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    margin-top: var(--nav-height);
  }
  .article-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30,27,75,0.88) 0%, rgba(30,27,75,0.70) 50%, rgba(124,58,237,0.55) 100%);
  }
  .article-banner .container { position: relative; z-index: 2; }
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.60);
    margin-bottom: 20px;
  }
  .breadcrumb a { color: rgba(255,255,255,0.70); }
  .breadcrumb a:hover { color: var(--white); }
  .breadcrumb span { color: rgba(255,255,255,0.90); }
  .article-banner h1 {
    font-size: 2.4rem;
    color: var(--white);
    max-width: 820px;
    margin-bottom: 16px;
    line-height: 1.3;
  }
  .article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    color: rgba(255,255,255,0.70);
    font-size: 0.92rem;
  }
  .article-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .article-meta .meta-item i { font-size: 0.8rem; color: var(--secondary); }
  .article-meta .category-badge {
    display: inline-block;
    background: rgba(249,115,22,0.20);
    color: var(--secondary-light);
    padding: 2px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
  }

  /* ===== Article Content ===== */
  .article-section { padding: 60px 0; }
  .article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
  }
  .article-body {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px 44px;
    box-shadow: var(--shadow);
  }
  .article-body .content {
    font-size: 1.04rem;
    line-height: 1.85;
    color: var(--text);
  }
  .article-body .content h2 { font-size: 1.5rem; margin-top: 2rem; margin-bottom: 0.8rem; }
  .article-body .content h3 { font-size: 1.2rem; margin-top: 1.6rem; margin-bottom: 0.5rem; }
  .article-body .content p { margin-bottom: 1.2rem; }
  .article-body .content ul, .article-body .content ol { padding-left: 1.4rem; margin-bottom: 1.2rem; }
  .article-body .content ul { list-style: disc; }
  .article-body .content ol { list-style: decimal; }
  .article-body .content li { margin-bottom: 0.4rem; }
  .article-body .content img { border-radius: var(--radius-sm); margin: 1.5rem 0; box-shadow: var(--shadow); }
  .article-body .content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--bg-alt);
    padding: 16px 24px;
    margin: 1.5rem 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-weak);
    font-style: italic;
  }
  .article-body .content a { color: var(--primary); text-decoration: underline; }
  .article-body .content a:hover { color: var(--primary-dark); }
  .article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }
  .article-tags .tag {
    display: inline-block;
    background: var(--bg-alt);
    color: var(--text-weak);
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    transition: var(--transition);
  }
  .article-tags .tag:hover { background: var(--primary); color: var(--white); }
  .article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
  }
  .article-share span { font-size: 0.9rem; color: var(--text-weak); font-weight: 500; }
  .article-share a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-alt);
    color: var(--text-weak);
    font-size: 1rem;
    transition: var(--transition);
  }
  .article-share a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }

  /* ===== Sidebar ===== */
  .article-sidebar { position: sticky; top: calc(var(--nav-height) + 24px); align-self: start; }
  .sidebar-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
  }
  .sidebar-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .sidebar-card h3 i { color: var(--secondary); }
  .sidebar-list li { margin-bottom: 12px; }
  .sidebar-list a {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.4;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
  }
  .sidebar-list a:hover { color: var(--primary); padding-left: 6px; }
  .sidebar-list a i { color: var(--primary-light); font-size: 0.7rem; margin-top: 4px; flex-shrink: 0; }
  .sidebar-list a span { display: block; color: var(--text-light); font-size: 0.78rem; margin-top: 2px; }
  .sidebar-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 28px;
    border-radius: var(--radius);
    text-align: center;
  }
  .sidebar-cta h4 { color: var(--white); font-size: 1.1rem; margin-bottom: 8px; }
  .sidebar-cta p { color: rgba(255,255,255,0.80); font-size: 0.88rem; margin-bottom: 16px; }
  .sidebar-cta .btn { background: var(--white); color: var(--primary); box-shadow: 0 4px 14px rgba(0,0,0,0.15); }
  .sidebar-cta .btn:hover { background: var(--bg-alt); transform: translateY(-2px); }

  /* ===== Related Posts ===== */
  .related-section { background: var(--bg-alt); padding: 60px 0; }
  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
  }
  .related-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }
  .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
  .related-card .card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
  }
  .related-card .card-body { padding: 20px 22px; }
  .related-card .card-body h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; color: var(--dark); }
  .related-card .card-body h4 a { color: var(--dark); }
  .related-card .card-body h4 a:hover { color: var(--primary); }
  .related-card .card-body p { font-size: 0.88rem; color: var(--text-weak); margin-bottom: 0; }
  .related-card .card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 10px;
  }
  .related-card .card-meta i { font-size: 0.7rem; }

  /* ===== FAQ ===== */
  .faq-section { padding: 60px 0; background: var(--white); }
  .faq-list { max-width: 800px; margin: 32px auto 0; display: flex; flex-direction: column; gap: 12px; }
  .faq-item {
    background: var(--bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
  }
  .faq-item:hover { border-color: var(--primary-light); }
  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--dark);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition: var(--transition);
    gap: 12px;
  }
  .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.85rem; flex-shrink: 0; }
  .faq-question.active i { transform: rotate(180deg); }
  .faq-answer {
    padding: 0 24px 18px;
    font-size: 0.95rem;
    color: var(--text-weak);
    line-height: 1.7;
    display: none;
  }
  .faq-answer.show { display: block; }

  /* ===== CTA ===== */
  .cta-section {
    padding: 80px 0;
    background: var(--dark);
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    position: relative;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30,27,75,0.90) 0%, rgba(124,58,237,0.75) 100%);
  }
  .cta-section .container { position: relative; z-index: 2; text-align: center; }
  .cta-section h2 { color: var(--white); font-size: 2.2rem; margin-bottom: 12px; }
  .cta-section p { color: rgba(255,255,255,0.80); font-size: 1.1rem; max-width: 600px; margin: 0 auto 28px; }
  .cta-section .btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

  /* ===== Footer ===== */
  .footer {
    background: var(--dark);
    color: rgba(255,255,255,0.75);
    padding: 60px 0 0;
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .footer-brand .logo { font-size: 1.4rem; margin-bottom: 16px; color: var(--white); }
  .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.60); line-height: 1.7; margin-bottom: 18px; max-width: 360px; }
  .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(255,255,255,0.08);
    color: rgba(255,255,255,0.65);
    font-size: 1.1rem;
    transition: var(--transition);
  }
  .footer-social a:hover { background: var(--primary); color: var(--white); transform: translateY(-3px); }
  .footer-col h4 { color: var(--white); font-size: 1rem; font-weight: 600; margin-bottom: 18px; }
  .footer-col a {
    display: block;
    color: rgba(255,255,255,0.55);
    font-size: 0.88rem;
    margin-bottom: 10px;
    transition: var(--transition);
  }
  .footer-col a:hover { color: var(--white); padding-left: 4px; }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.40);
    flex-wrap: wrap;
    gap: 8px;
  }
  .footer-bottom a { color: rgba(255,255,255,0.50); }
  .footer-bottom a:hover { color: var(--white); }

  /* ===== Not Found ===== */
  .not-found-page { min-height: 60vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 60px 24px; }
  .not-found-page .nf-icon { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
  .not-found-page h2 { font-size: 1.8rem; color: var(--dark); margin-bottom: 12px; }
  .not-found-page p { color: var(--text-weak); max-width: 420px; margin: 0 auto 24px; }

  /* ===== Empty State ===== */
  .empty-state { text-align: center; padding: 40px 24px; color: var(--text-light); }
  .empty-state i { font-size: 2.4rem; margin-bottom: 12px; color: var(--border); }
  .empty-state p { font-size: 0.95rem; }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }

  @media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    .section-title { font-size: 1.5rem; }
    .article-banner { padding: 100px 0 40px; }
    .article-banner h1 { font-size: 1.6rem; }
    .article-body { padding: 24px 20px; }
    .article-layout { gap: 24px; }
    .article-sidebar { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .nav { display: none; }
    .nav.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: rgba(30,27,75,0.98); padding: 20px 24px; gap: 6px; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .hamburger { display: flex; }
    .cta-section h2 { font-size: 1.6rem; }
    .cta-section .btn-group { flex-direction: column; align-items: center; }
  }

  @media (max-width: 520px) {
    .container { padding: 0 16px; }
    .article-banner h1 { font-size: 1.3rem; }
    .article-meta { gap: 10px; font-size: 0.8rem; }
    .article-body { padding: 16px; }
    .article-body .content { font-size: 0.95rem; }
    .related-card .card-img { height: 140px; }
    .faq-question { padding: 14px 16px; font-size: 0.92rem; }
    .faq-answer { padding: 0 16px 14px; }
    .sidebar-card { padding: 20px; }
    .logo { font-size: 1.2rem; }
    .logo i { font-size: 1.3rem; }
  }

  /* ===== Utility ===== */
  .text-center { text-align: center; }
  .mt-1 { margin-top: 1rem; }
  .mt-2 { margin-top: 2rem; }
  .mb-1 { margin-bottom: 1rem; }
  .gap-1 { gap: 1rem; }
  .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
        --primary: #6c3bf1;
        --primary-dark: #5228c9;
        --primary-light: #8b5cf7;
        --primary-gradient: linear-gradient(135deg, #6c3bf1 0%, #a855f7 100%);
        --secondary: #f59e0b;
        --secondary-dark: #d97706;
        --accent: #10b981;
        --bg-dark: #0f0e1a;
        --bg-card: #1a1833;
        --bg-section: #14122a;
        --bg-light: #f8f7ff;
        --text-white: #ffffff;
        --text-light: #e2dff7;
        --text-muted: #9a94b8;
        --text-dark: #1a1a2e;
        --border-color: rgba(108, 59, 241, 0.2);
        --border-light: rgba(255, 255, 255, 0.08);
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --shadow-sm: 0 4px 12px rgba(108, 59, 241, 0.15);
        --shadow-md: 0 8px 30px rgba(108, 59, 241, 0.2);
        --shadow-lg: 0 20px 60px rgba(108, 59, 241, 0.25);
        --shadow-glow: 0 0 40px rgba(108, 59, 241, 0.3);
        --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        --max-width: 1200px;
        --nav-height: 72px;
    }

    /* ===== Reset / Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
    }

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-light);
        background: var(--bg-dark);
        overflow-x: hidden;
    }

    a {
        color: var(--primary-light);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--secondary);
    }

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

    button,
    input,
    textarea,
    select {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: none;
        color: inherit;
    }

    ul,
    ol {
        list-style: none;
    }

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

    @media (max-width: 768px) {
        .container {
            padding: 0 16px;
        }
    }

    /* ===== Header / Nav ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background: rgba(15, 14, 26, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-light);
        height: var(--nav-height);
        transition: var(--transition);
    }

    .header.scrolled {
        background: rgba(15, 14, 26, 0.98);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }

    .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--nav-height);
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
        gap: 12px;
    }

    .nav .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.35rem;
        font-weight: 800;
        color: var(--text-white);
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        letter-spacing: -0.5px;
        white-space: nowrap;
    }
    .nav .logo i {
        -webkit-text-fill-color: initial;
        color: var(--primary-light);
        font-size: 1.5rem;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .nav-links a {
        color: var(--text-muted);
        padding: 8px 18px;
        border-radius: 100px;
        font-weight: 500;
        font-size: 0.9rem;
        transition: var(--transition);
        position: relative;
        white-space: nowrap;
    }

    .nav-links a i {
        margin-right: 6px;
        font-size: 0.85rem;
    }

    .nav-links a:hover {
        color: var(--text-white);
        background: rgba(108, 59, 241, 0.12);
    }

    .nav-links a.active {
        color: var(--text-white);
        background: var(--primary-gradient);
        box-shadow: var(--shadow-sm);
    }

    .nav-links a.nav-cta {
        background: var(--secondary);
        color: #1a1a2e;
        font-weight: 700;
        padding: 8px 24px;
        box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
    }
    .nav-links a.nav-cta:hover {
        background: var(--secondary-dark);
        box-shadow: 0 6px 30px rgba(245, 158, 11, 0.4);
        transform: translateY(-2px);
    }

    /* Mobile menu toggle */
    .menu-toggle {
        display: none;
        background: none;
        border: none;
        color: var(--text-white);
        font-size: 1.6rem;
        cursor: pointer;
        padding: 4px 8px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .menu-toggle:hover {
        background: rgba(255, 255, 255, 0.06);
    }

    @media (max-width: 768px) {
        .nav-links {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(15, 14, 26, 0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 20px 24px;
            gap: 8px;
            border-bottom: 1px solid var(--border-light);
            transform: translateY(-120%);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            box-shadow: var(--shadow-lg);
        }
        .nav-links.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .nav-links a {
            width: 100%;
            padding: 12px 18px;
            font-size: 1rem;
        }
        .nav-links a.nav-cta {
            text-align: center;
        }
        .menu-toggle {
            display: block;
        }
        .nav .logo {
            font-size: 1.15rem;
        }
    }

    @media (max-width: 480px) {
        .nav {
            padding: 0 12px;
        }
        .nav .logo {
            font-size: 1rem;
        }
        .nav .logo i {
            font-size: 1.2rem;
        }
    }

    /* ===== Hero ===== */
    .hero {
        padding-top: calc(var(--nav-height) + 20px);
        min-height: 70vh;
        display: flex;
        align-items: center;
        position: relative;
        overflow: hidden;
        background: linear-gradient(160deg, #0f0e1a 0%, #1a1833 40%, #14122a 100%);
    }

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        opacity: 0.18;
        z-index: 0;
        animation: heroParallax 20s ease-in-out infinite alternate;
    }

    @keyframes heroParallax {
        0% {
            transform: scale(1.02) translateX(0);
        }
        100% {
            transform: scale(1.08) translateX(-10px);
        }
    }

    .hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 30% 50%, rgba(108, 59, 241, 0.2) 0%, transparent 70%),
            radial-gradient(ellipse at 70% 30%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
        z-index: 1;
    }

    .hero .container {
        position: relative;
        z-index: 2;
        text-align: center;
        padding: 60px 24px;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(108, 59, 241, 0.15);
        border: 1px solid rgba(108, 59, 241, 0.25);
        padding: 6px 20px;
        border-radius: 100px;
        font-size: 0.85rem;
        color: var(--primary-light);
        margin-bottom: 28px;
        letter-spacing: 0.3px;
    }

    .hero h1 {
        font-size: 3.6rem;
        font-weight: 900;
        line-height: 1.15;
        color: var(--text-white);
        margin-bottom: 20px;
        letter-spacing: -1px;
    }

    .hero h1 span {
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .hero p {
        font-size: 1.2rem;
        color: var(--text-muted);
        max-width: 680px;
        margin: 0 auto 36px;
        line-height: 1.8;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        justify-content: center;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 34px;
        border-radius: 100px;
        font-weight: 700;
        font-size: 0.95rem;
        cursor: pointer;
        transition: var(--transition);
        border: none;
        position: relative;
        overflow: hidden;
    }

    .btn-primary {
        background: var(--primary-gradient);
        color: var(--text-white);
        box-shadow: var(--shadow-md);
    }
    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-lg);
        color: var(--text-white);
    }

    .btn-secondary {
        background: rgba(255, 255, 255, 0.06);
        color: var(--text-light);
        border: 1px solid var(--border-light);
    }
    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.12);
        color: var(--text-white);
        transform: translateY(-3px);
    }

    .btn-gold {
        background: var(--secondary);
        color: #1a1a2e;
        box-shadow: 0 4px 20px rgba(245, 158, 11, 0.25);
    }
    .btn-gold:hover {
        background: var(--secondary-dark);
        transform: translateY(-3px);
        box-shadow: 0 8px 35px rgba(245, 158, 11, 0.35);
        color: #1a1a2e;
    }

    .btn-sm {
        padding: 10px 22px;
        font-size: 0.85rem;
    }

    @media (max-width: 768px) {
        .hero h1 {
            font-size: 2.2rem;
        }
        .hero p {
            font-size: 1rem;
        }
        .hero {
            min-height: 60vh;
        }
        .hero .container {
            padding: 40px 16px;
        }
    }

    @media (max-width: 480px) {
        .hero h1 {
            font-size: 1.7rem;
        }
        .hero-actions {
            flex-direction: column;
            align-items: center;
        }
        .btn {
            width: 100%;
            justify-content: center;
            padding: 12px 24px;
        }
    }

    /* ===== 板块通用 ===== */
    .section {
        padding: 80px 0;
        position: relative;
    }

    .section-dark {
        background: var(--bg-section);
    }

    .section-card {
        background: var(--bg-card);
    }

    .section-divider {
        background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-section) 100%);
    }

    .section-header {
        text-align: center;
        margin-bottom: 56px;
    }

    .section-header h2 {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--text-white);
        margin-bottom: 14px;
        letter-spacing: -0.5px;
    }

    .section-header h2 i {
        color: var(--primary-light);
        margin-right: 8px;
    }

    .section-header p {
        color: var(--text-muted);
        font-size: 1.05rem;
        max-width: 600px;
        margin: 0 auto;
        line-height: 1.8;
    }

    .section-header .badge-group {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        margin-bottom: 18px;
    }

    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 16px;
        border-radius: 100px;
        font-size: 0.8rem;
        font-weight: 600;
        background: rgba(108, 59, 241, 0.12);
        color: var(--primary-light);
        border: 1px solid rgba(108, 59, 241, 0.15);
    }
    .badge-gold {
        background: rgba(245, 158, 11, 0.12);
        color: var(--secondary);
        border-color: rgba(245, 158, 11, 0.2);
    }
    .badge-green {
        background: rgba(16, 185, 129, 0.12);
        color: var(--accent);
        border-color: rgba(16, 185, 129, 0.2);
    }

    @media (max-width: 768px) {
        .section {
            padding: 56px 0;
        }
        .section-header h2 {
            font-size: 1.7rem;
        }
        .section-header p {
            font-size: 0.95rem;
        }
        .section-header {
            margin-bottom: 36px;
        }
    }

    @media (max-width: 480px) {
        .section {
            padding: 40px 0;
        }
        .section-header h2 {
            font-size: 1.4rem;
        }
    }

    /* ===== 网格 ===== */
    .grid-2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .grid-3 {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 32px;
    }
    .grid-4 {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 28px;
    }

    @media (max-width: 1024px) {
        .grid-4 {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 768px) {
        .grid-2,
        .grid-3,
        .grid-4 {
            grid-template-columns: 1fr;
            gap: 24px;
        }
    }

    /* ===== 卡片 ===== */
    .card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        padding: 28px 24px;
        transition: var(--transition);
        overflow: hidden;
        position: relative;
    }

    .card:hover {
        border-color: rgba(108, 59, 241, 0.3);
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }

    .card-img {
        border-radius: var(--radius-sm);
        overflow: hidden;
        margin: -28px -24px 20px -24px;
        position: relative;
    }

    .card-img img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        transition: var(--transition);
    }

    .card:hover .card-img img {
        transform: scale(1.05);
    }

    .card-img .card-tag {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--primary-gradient);
        color: #fff;
        padding: 4px 14px;
        border-radius: 100px;
        font-size: 0.75rem;
        font-weight: 600;
        box-shadow: var(--shadow-sm);
    }

    .card h3 {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 10px;
    }

    .card p {
        color: var(--text-muted);
        font-size: 0.9rem;
        line-height: 1.7;
        margin-bottom: 14px;
    }

    .card .meta {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.8rem;
        color: var(--text-muted);
        margin-bottom: 14px;
    }
    .card .meta i {
        color: var(--primary-light);
        margin-right: 4px;
    }

    .card .card-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary-light);
        font-weight: 600;
        font-size: 0.9rem;
    }
    .card .card-link i {
        transition: var(--transition);
    }
    .card:hover .card-link i {
        transform: translateX(4px);
    }

    @media (max-width: 768px) {
        .card {
            padding: 20px 16px;
        }
        .card-img {
            margin: -20px -16px 16px -16px;
        }
        .card-img img {
            height: 160px;
        }
        .card h3 {
            font-size: 1.05rem;
        }
    }

    /* ===== 游戏分类卡 (特殊) ===== */
    .cat-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        padding: 32px 24px;
        text-align: center;
        transition: var(--transition);
        cursor: pointer;
    }

    .cat-card:hover {
        border-color: rgba(108, 59, 241, 0.35);
        box-shadow: var(--shadow-md);
        transform: translateY(-6px);
    }

    .cat-card .icon-wrap {
        width: 64px;
        height: 64px;
        margin: 0 auto 18px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.8rem;
        background: rgba(108, 59, 241, 0.12);
        color: var(--primary-light);
        transition: var(--transition);
    }

    .cat-card:hover .icon-wrap {
        background: var(--primary-gradient);
        color: #fff;
        box-shadow: var(--shadow-glow);
    }

    .cat-card h4 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 8px;
    }

    .cat-card p {
        font-size: 0.85rem;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 14px;
    }

    .cat-card .count {
        font-size: 0.8rem;
        color: var(--primary-light);
        font-weight: 600;
    }

    /* ===== 特色区块 ===== */
    .feature-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .feature-item {
        display: flex;
        gap: 18px;
        padding: 24px 20px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        transition: var(--transition);
    }

    .feature-item:hover {
        border-color: rgba(108, 59, 241, 0.25);
        box-shadow: var(--shadow-sm);
        transform: translateY(-2px);
    }

    .feature-item .fi-icon {
        flex-shrink: 0;
        width: 52px;
        height: 52px;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.4rem;
        background: rgba(108, 59, 241, 0.12);
        color: var(--primary-light);
    }

    .feature-item .fi-text h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 4px;
    }

    .feature-item .fi-text p {
        font-size: 0.85rem;
        color: var(--text-muted);
        line-height: 1.6;
    }

    @media (max-width: 768px) {
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .feature-item {
            padding: 18px 16px;
        }
    }

    /* ===== 数据统计 ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .stat-item {
        text-align: center;
        padding: 32px 16px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        transition: var(--transition);
    }

    .stat-item:hover {
        border-color: rgba(108, 59, 241, 0.3);
        box-shadow: var(--shadow-sm);
    }

    .stat-item .num {
        font-size: 2.8rem;
        font-weight: 900;
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.2;
    }

    .stat-item .label {
        font-size: 0.9rem;
        color: var(--text-muted);
        margin-top: 6px;
        font-weight: 500;
    }

    @media (max-width: 1024px) {
        .stats-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 480px) {
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .stat-item {
            padding: 20px 12px;
        }
        .stat-item .num {
            font-size: 2rem;
        }
    }

    /* ===== 评价 ===== */
    .review-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-light);
        padding: 28px 24px;
        transition: var(--transition);
    }

    .review-card:hover {
        border-color: rgba(108, 59, 241, 0.25);
        box-shadow: var(--shadow-sm);
    }

    .review-card .stars {
        color: var(--secondary);
        font-size: 0.95rem;
        margin-bottom: 12px;
        letter-spacing: 2px;
    }

    .review-card blockquote {
        font-size: 0.95rem;
        color: var(--text-light);
        line-height: 1.8;
        font-style: italic;
        margin-bottom: 16px;
    }

    .review-card .reviewer {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .review-card .reviewer .avatar {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: var(--primary-gradient);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 1rem;
        color: #fff;
        flex-shrink: 0;
    }

    .review-card .reviewer .name {
        font-weight: 600;
        color: var(--text-white);
        font-size: 0.9rem;
    }
    .review-card .reviewer .title {
        font-size: 0.8rem;
        color: var(--text-muted);
    }

    @media (max-width: 768px) {
        .review-card {
            padding: 20px 16px;
        }
        .review-card blockquote {
            font-size: 0.88rem;
        }
    }

    /* ===== 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-light);
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(108, 59, 241, 0.2);
    }

    .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 22px;
        cursor: pointer;
        font-weight: 600;
        color: var(--text-white);
        font-size: 0.95rem;
        transition: var(--transition);
        user-select: none;
    }

    .faq-question i {
        color: var(--primary-light);
        transition: var(--transition);
        font-size: 0.85rem;
    }

    .faq-item.active .faq-question i {
        transform: rotate(180deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.3s ease;
        padding: 0 22px;
        color: var(--text-muted);
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .faq-item.active .faq-answer {
        max-height: 300px;
        padding: 0 22px 20px 22px;
    }

    @media (max-width: 768px) {
        .faq-question {
            padding: 14px 16px;
            font-size: 0.88rem;
        }
        .faq-answer {
            padding: 0 16px;
            font-size: 0.84rem;
        }
        .faq-item.active .faq-answer {
            padding: 0 16px 16px 16px;
        }
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(160deg, #1a1833 0%, #0f0e1a 100%);
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        opacity: 0.08;
        z-index: 0;
    }

    .cta-section .container {
        position: relative;
        z-index: 1;
        text-align: center;
        padding: 80px 24px;
    }

    .cta-section h2 {
        font-size: 2.6rem;
        font-weight: 900;
        color: var(--text-white);
        margin-bottom: 16px;
    }

    .cta-section p {
        font-size: 1.1rem;
        color: var(--text-muted);
        max-width: 560px;
        margin: 0 auto 32px;
    }

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

    @media (max-width: 768px) {
        .cta-section .container {
            padding: 56px 16px;
        }
        .cta-section h2 {
            font-size: 1.8rem;
        }
        .cta-section p {
            font-size: 0.95rem;
        }
        .cta-section .cta-actions {
            flex-direction: column;
            align-items: center;
        }
    }

    /* ===== Footer ===== */
    .footer {
        background: #0a0a14;
        border-top: 1px solid var(--border-light);
        padding: 60px 0 30px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-brand .logo {
        font-size: 1.3rem;
        font-weight: 800;
        color: var(--text-white);
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-brand .logo i {
        color: var(--primary-light);
    }

    .footer-brand p {
        color: var(--text-muted);
        font-size: 0.88rem;
        line-height: 1.8;
        margin-bottom: 18px;
        max-width: 360px;
    }

    .footer-social {
        display: flex;
        gap: 12px;
    }

    .footer-social a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.05);
        color: var(--text-muted);
        font-size: 1.1rem;
        transition: var(--transition);
        border: 1px solid var(--border-light);
    }

    .footer-social a:hover {
        background: var(--primary-gradient);
        color: #fff;
        border-color: transparent;
        transform: translateY(-3px);
        box-shadow: var(--shadow-glow);
    }

    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 18px;
    }

    .footer-col a {
        display: block;
        color: var(--text-muted);
        font-size: 0.88rem;
        padding: 5px 0;
        transition: var(--transition);
    }

    .footer-col a:hover {
        color: var(--primary-light);
        padding-left: 4px;
    }

    .footer-bottom {
        border-top: 1px solid var(--border-light);
        padding-top: 24px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
    }

    .footer-bottom p {
        color: var(--text-muted);
        font-size: 0.82rem;
    }

    .footer-bottom a {
        color: var(--primary-light);
    }
    .footer-bottom a:hover {
        color: var(--secondary);
    }

    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
    }

    @media (max-width: 768px) {
        .footer {
            padding: 40px 0 24px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-brand p {
            max-width: 100%;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    @media (max-width: 480px) {
        .footer-social {
            justify-content: center;
        }
        .footer-col {
            text-align: center;
        }
        .footer-col a:hover {
            padding-left: 0;
        }
        .footer-brand .logo {
            justify-content: center;
        }
    }

    /* ===== 通用辅助 ===== */
    .text-center {
        text-align: center;
    }
    .mt-16 {
        margin-top: 16px;
    }
    .mt-24 {
        margin-top: 24px;
    }
    .mt-32 {
        margin-top: 32px;
    }
    .mb-16 {
        margin-bottom: 16px;
    }
    .mb-24 {
        margin-bottom: 24px;
    }

    .divider {
        width: 60px;
        height: 4px;
        background: var(--primary-gradient);
        border-radius: 4px;
        margin: 16px auto 20px;
    }

    /* ===== 响应式微调 ===== */
    @media (max-width: 520px) {
        .hero h1 {
            font-size: 1.4rem;
        }
        .hero-badge {
            font-size: 0.75rem;
            padding: 4px 14px;
        }
        .badge {
            font-size: 0.7rem;
            padding: 3px 12px;
        }
        .btn {
            font-size: 0.85rem;
            padding: 10px 20px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.78rem;
        }
        .section-header h2 {
            font-size: 1.25rem;
        }
        .stat-item .num {
            font-size: 1.6rem;
        }
        .cat-card .icon-wrap {
            width: 48px;
            height: 48px;
            font-size: 1.4rem;
        }
        .feature-item {
            flex-direction: column;
            align-items: flex-start;
        }
    }