/* roulang page: index */
:root {
  --primary: #f0b90b;
  --primary-dark: #d4a30a;
  --primary-light: #fcd34d;
  --bg-dark: #0b1020;
  --bg-deep: #060b18;
  --surface: #131a2e;
  --surface-light: #1c2440;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255,255,255,0.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.4);
  --shadow-md: 0 10px 30px rgba(0,0,0,0.25);
  --transition: all 0.3s ease;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif; background:var(--bg-dark); color:var(--text-main); line-height:1.7; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
button { font-family:inherit; cursor:pointer; border:none; background:none; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
::selection { background:rgba(240,185,11,0.3); color:#fff; }

/* Header */
.site-header { position:fixed; top:0; left:0; right:0; z-index:100; background:rgba(11,16,32,0.85); backdrop-filter:blur(16px); border-bottom:1px solid var(--border); transition:var(--transition); }
.site-header.scrolled { background:rgba(6,11,24,0.95); box-shadow:0 10px 40px rgba(0,0,0,0.5); }
.header-inner { display:flex; align-items:center; justify-content:space-between; height:72px; gap:24px; }
.logo { font-size:1.25rem; font-weight:800; letter-spacing:1px; background:linear-gradient(135deg,var(--primary-light),var(--primary)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; white-space:nowrap; }
.logo i { margin-right:8px; font-size:1.4rem; }
.main-nav { display:flex; align-items:center; gap:4px; }
.nav-link { padding:8px 18px; border-radius:50px; font-size:0.95rem; font-weight:500; color:var(--text-muted); transition:var(--transition); position:relative; }
.nav-link:hover { color:var(--primary-light); background:rgba(240,185,11,0.08); }
.nav-link.active { color:var(--primary); background:rgba(240,185,11,0.12); }
.nav-cta { margin-left:8px; padding:8px 22px; border-radius:50px; background:linear-gradient(135deg,var(--primary),var(--primary-dark)); color:#0b1020; font-weight:700; font-size:0.9rem; transition:var(--transition); box-shadow:0 4px 20px rgba(240,185,11,0.25); }
.nav-cta:hover { transform:translateY(-2px); box-shadow:0 8px 30px rgba(240,185,11,0.35); }
.nav-toggle { display:none; width:44px; height:44px; border-radius:12px; background:var(--surface); color:var(--text-main); font-size:1.2rem; align-items:center; justify-content:center; transition:var(--transition); }
.nav-toggle:hover { background:var(--surface-light); }

/* Hero */
.hero { position:relative; min-height:100vh; display:flex; align-items:center; padding:120px 0 80px; overflow:hidden; }
.hero-bg { position:absolute; inset:0; background:url('/assets/images/backpic/back-1.png') center/cover no-repeat; z-index:0; }
.hero-overlay { position:absolute; inset:0; background:linear-gradient(135deg,rgba(6,11,24,0.95) 0%,rgba(11,16,32,0.75) 45%,rgba(6,11,24,0.6) 100%); z-index:1; }
.hero-content { position:relative; z-index:2; max-width:820px; }
.hero-badge { display:inline-flex; align-items:center; gap:8px; padding:8px 20px; border-radius:50px; background:rgba(240,185,11,0.12); border:1px solid rgba(240,185,11,0.3); color:var(--primary-light); font-size:0.85rem; font-weight:600; letter-spacing:1px; margin-bottom:28px; }
.hero-badge i { font-size:0.9rem; }
.hero h1 { font-size:clamp(2.4rem, 6vw, 4.2rem); font-weight:900; line-height:1.15; letter-spacing:2px; margin-bottom:24px; }
.hero h1 span { background:linear-gradient(135deg,var(--primary-light),var(--primary)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.hero-desc { font-size:1.1rem; color:rgba(248,250,252,0.75); max-width:640px; margin-bottom:40px; line-height:1.8; }
.hero-actions { display:flex; flex-wrap:wrap; gap:16px; }
.btn-primary { display:inline-flex; align-items:center; gap:10px; padding:14px 34px; border-radius:50px; background:linear-gradient(135deg,var(--primary),var(--primary-dark)); color:#0b1020; font-weight:800; font-size:1rem; transition:var(--transition); box-shadow:0 8px 30px rgba(240,185,11,0.3); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 12px 40px rgba(240,185,11,0.4); }
.btn-secondary { display:inline-flex; align-items:center; gap:10px; padding:14px 34px; border-radius:50px; background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.15); color:var(--text-main); font-weight:600; font-size:1rem; transition:var(--transition); backdrop-filter:blur(10px); }
.btn-secondary:hover { background:rgba(255,255,255,0.14); transform:translateY(-3px); }
.hero-scroll { position:absolute; bottom:30px; left:50%; transform:translateX(-50%); color:var(--text-muted); font-size:1.5rem; animation:bounce 2s infinite; z-index:2; }
@keyframes bounce { 0%,100% { transform:translateX(-50%) translateY(0); } 50% { transform:translateX(-50%) translateY(-12px); } }

/* Sections */
.section { padding:90px 0; position:relative; }
.section-label { display:inline-block; padding:6px 16px; border-radius:50px; background:rgba(240,185,11,0.1); border:1px solid rgba(240,185,11,0.25); color:var(--primary-light); font-size:0.8rem; font-weight:600; letter-spacing:2px; text-transform:uppercase; margin-bottom:16px; }
.section-title { font-size:clamp(1.8rem, 4vw, 2.6rem); font-weight:800; line-height:1.3; margin-bottom:16px; }
.section-subtitle { font-size:1.05rem; color:var(--text-muted); max-width:700px; margin-bottom:50px; line-height:1.7; }

/* Features */
.features-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.feature-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:36px 28px; transition:var(--transition); position:relative; overflow:hidden; }
.feature-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:linear-gradient(90deg,var(--primary),transparent); opacity:0; transition:var(--transition); }
.feature-card:hover { transform:translateY(-8px); border-color:rgba(240,185,11,0.3); box-shadow:var(--shadow-lg); background:var(--surface-light); }
.feature-card:hover::before { opacity:1; }
.feature-icon { width:58px; height:58px; border-radius:16px; background:linear-gradient(135deg,rgba(240,185,11,0.15),rgba(240,185,11,0.05)); display:flex; align-items:center; justify-content:center; font-size:1.5rem; color:var(--primary); margin-bottom:22px; border:1px solid rgba(240,185,11,0.2); }
.feature-card h3 { font-size:1.2rem; font-weight:700; margin-bottom:12px; }
.feature-card p { font-size:0.92rem; color:var(--text-muted); line-height:1.7; }

/* Category Cards */
.categories-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:28px; }
.category-card { position:relative; border-radius:var(--radius-lg); overflow:hidden; min-height:340px; display:flex; align-items:flex-end; transition:var(--transition); border:1px solid var(--border); }
.category-card img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:var(--transition); }
.category-card::after { content:''; position:absolute; inset:0; background:linear-gradient(to top, rgba(6,11,24,0.95) 0%, rgba(6,11,24,0.5) 50%, rgba(6,11,24,0.2) 100%); }
.category-card:hover img { transform:scale(1.06); }
.category-card:hover { box-shadow:var(--shadow-lg); transform:translateY(-4px); }
.category-content { position:relative; z-index:2; padding:36px 32px; width:100%; }
.category-tag { display:inline-block; padding:5px 14px; border-radius:50px; background:rgba(240,185,11,0.9); color:#0b1020; font-size:0.75rem; font-weight:800; letter-spacing:1px; margin-bottom:14px; }
.category-content h3 { font-size:1.5rem; font-weight:800; margin-bottom:10px; }
.category-content p { color:rgba(248,250,252,0.7); font-size:0.95rem; margin-bottom:18px; max-width:420px; }
.category-link { display:inline-flex; align-items:center; gap:8px; color:var(--primary-light); font-weight:600; font-size:0.95rem; transition:var(--transition); }
.category-link:hover { gap:14px; color:var(--primary); }

/* Stats */
.stats-section { background:var(--bg-deep); border-top:1px solid var(--border); border-bottom:1px solid var(--border); padding:70px 0; }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:32px; text-align:center; }
.stat-item h3 { font-size:clamp(2rem,4vw,3rem); font-weight:900; background:linear-gradient(135deg,var(--primary-light),var(--primary)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; margin-bottom:8px; }
.stat-item p { color:var(--text-muted); font-size:0.95rem; letter-spacing:1px; }

/* News */
.news-section { background:linear-gradient(180deg,var(--bg-dark),var(--bg-deep)); }
.news-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.news-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md); padding:28px; transition:var(--transition); display:flex; flex-direction:column; gap:12px; }
.news-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-md); border-color:rgba(240,185,11,0.25); background:var(--surface-light); }
.news-meta { display:flex; align-items:center; justify-content:space-between; font-size:0.8rem; color:var(--text-muted); }
.news-cat { padding:4px 12px; border-radius:50px; background:rgba(240,185,11,0.1); border:1px solid rgba(240,185,11,0.2); color:var(--primary-light); font-weight:600; font-size:0.75rem; }
.news-card h3 { font-size:1.15rem; font-weight:700; line-height:1.5; transition:var(--transition); }
.news-card:hover h3 { color:var(--primary-light); }
.news-card p { font-size:0.9rem; color:var(--text-muted); line-height:1.7; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.news-foot { display:flex; align-items:center; justify-content:space-between; margin-top:auto; padding-top:12px; border-top:1px solid var(--border); }
.news-time { font-size:0.8rem; color:var(--text-muted); }
.news-more { font-size:0.85rem; color:var(--primary); font-weight:600; display:inline-flex; align-items:center; gap:6px; transition:var(--transition); }
.news-card:hover .news-more { gap:10px; }
.empty-tip { grid-column:1/-1; text-align:center; padding:40px; color:var(--text-muted); font-size:1rem; background:var(--surface); border-radius:var(--radius-md); border:1px dashed var(--border); }

/* Showcase */
.showcase-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.showcase-block { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
.showcase-image { position:relative; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-lg); }
.showcase-image img { width:100%; height:300px; object-fit:cover; transition:var(--transition); }
.showcase-image:hover img { transform:scale(1.03); }
.showcase-image::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg,transparent 60%,rgba(6,11,24,0.6)); }
.showcase-content h3 { font-size:1.4rem; font-weight:800; margin-bottom:16px; }
.showcase-content p { font-size:0.95rem; color:var(--text-muted); margin-bottom:20px; line-height:1.8; }
.showcase-list { list-style:none; display:flex; flex-direction:column; gap:10px; }
.showcase-list li { display:flex; align-items:center; gap:10px; font-size:0.92rem; color:rgba(248,250,252,0.8); }
.showcase-list li i { color:var(--primary); font-size:0.8rem; }

/* Process */
.process-section { background:var(--bg-deep); }
.process-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:30px; position:relative; }
.process-grid::before { content:''; position:absolute; top:40px; left:15%; right:15%; height:2px; background:linear-gradient(90deg,transparent,rgba(240,185,11,0.4),transparent); }
.process-step { text-align:center; padding:0 20px; position:relative; }
.process-num { width:80px; height:80px; margin:0 auto 24px; border-radius:50%; background:var(--surface); border:2px solid rgba(240,185,11,0.4); display:flex; align-items:center; justify-content:center; font-size:1.8rem; font-weight:900; color:var(--primary); position:relative; z-index:1; box-shadow:0 0 30px rgba(240,185,11,0.15); }
.process-step h3 { font-size:1.3rem; font-weight:800; margin-bottom:12px; }
.process-step p { font-size:0.92rem; color:var(--text-muted); line-height:1.7; }

/* FAQ */
.faq-list { max-width:780px; margin:0 auto; display:flex; flex-direction:column; gap:16px; }
.faq-item { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; transition:var(--transition); }
.faq-item.open { border-color:rgba(240,185,11,0.3); box-shadow:var(--shadow-md); }
.faq-question { width:100%; padding:22px 28px; display:flex; align-items:center; justify-content:space-between; gap:16px; text-align:left; font-size:1.05rem; font-weight:600; color:var(--text-main); transition:var(--transition); }
.faq-question i { color:var(--primary); transition: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; }
.faq-answer-inner { padding:0 28px 22px; font-size:0.95rem; color:var(--text-muted); line-height:1.8; }

/* CTA */
.cta-section { position:relative; padding:90px 0; background:url('/assets/images/backpic/back-2.png') center/cover no-repeat; }
.cta-overlay { position:absolute; inset:0; background:linear-gradient(135deg,rgba(6,11,24,0.92),rgba(11,16,32,0.85)); }
.cta-content { position:relative; z-index:2; text-align:center; max-width:680px; margin:0 auto; }
.cta-content h2 { font-size:clamp(1.8rem,4vw,2.6rem); font-weight:900; margin-bottom:20px; }
.cta-content p { font-size:1.05rem; color:rgba(248,250,252,0.7); margin-bottom:36px; }

/* Footer */
.site-footer { background:var(--bg-deep); border-top:1px solid var(--border); padding:70px 0 30px; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; margin-bottom:50px; }
.footer-brand .logo { font-size:1.3rem; margin-bottom:16px; display:inline-block; }
.footer-brand p { font-size:0.9rem; color:var(--text-muted); line-height:1.8; max-width:300px; }
.footer-title { font-size:1rem; font-weight:700; margin-bottom:20px; position:relative; padding-bottom:10px; }
.footer-title::after { content:''; position:absolute; bottom:0; left:0; width:30px; height:2px; background:var(--primary); }
.footer-links { list-style:none; display:flex; flex-direction:column; gap:10px; }
.footer-links a { font-size:0.9rem; color:var(--text-muted); transition:var(--transition); }
.footer-links a:hover { color:var(--primary-light); padding-left:5px; }
.footer-bottom { border-top:1px solid var(--border); padding-top:24px; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:0.85rem; color:var(--text-muted); }
.footer-bottom a { color:var(--primary-light); }
.footer-contact { display:flex; align-items:center; gap:8px; font-size:0.9rem; color:var(--text-muted); }

/* Responsive */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns:repeat(2,1fr); }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .showcase-block { grid-template-columns:1fr; gap:30px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:30px; }
  .process-grid::before { display:none; }
}
@media (max-width: 768px) {
  .main-nav { display:none; position:absolute; top:72px; left:0; right:0; background:rgba(6,11,24,0.98); flex-direction:column; padding:20px; gap:8px; border-bottom:1px solid var(--border); backdrop-filter:blur(16px); }
  .main-nav.open { display:flex; }
  .nav-link { padding:12px 20px; text-align:center; font-size:1.05rem; }
  .nav-cta { margin:10px 0 0; text-align:center; justify-content:center; }
  .nav-toggle { display:flex; }
  .categories-grid { grid-template-columns:1fr; }
  .news-grid { grid-template-columns:1fr; }
  .process-grid { grid-template-columns:1fr; gap:40px; }
  .hero { padding:100px 0 60px; }
  .hero-actions { flex-direction:column; align-items:flex-start; }
  .btn-primary, .btn-secondary { width:100%; justify-content:center; }
  .footer-grid { grid-template-columns:1fr; }
}
@media (max-width: 520px) {
  .features-grid { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .container { padding:0 16px; }
  .section { padding:60px 0; }
  .logo { font-size:1.05rem; }
  .header-inner { height:60px; }
  .main-nav { top:60px; }
  .category-card { min-height:280px; }
}

/* roulang page: article */
:root {
      --bg-primary: #0b0e16;
      --bg-secondary: #111827;
      --bg-card: #1a2130;
      --bg-card-hover: #222c40;
      --accent: #f59e0b;
      --accent-strong: #d97706;
      --accent-light: #fbbf24;
      --text-primary: #f3f4f6;
      --text-secondary: #9ca3af;
      --text-muted: #6b7280;
      --border: rgba(255, 255, 255, 0.08);
      --radius-lg: 1.25rem;
      --radius-md: 0.875rem;
      --radius-sm: 0.5rem;
      --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
      --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.55);
      --transition: all 0.3s ease;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button {
      cursor: pointer;
      border: none;
      background: none;
      font-family: inherit;
    }

    input,
    textarea {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* ---------- Header ---------- */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(11, 14, 22, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: var(--transition);
    }

    .site-header.scrolled {
      background: rgba(11, 14, 22, 0.95);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 2rem;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--text-primary);
      white-space: nowrap;
      transition: var(--transition);
    }

    .logo i {
      color: var(--accent);
      font-size: 1.4rem;
    }

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

    .main-nav {
      display: flex;
      align-items: center;
      gap: 1.75rem;
    }

    .nav-link {
      position: relative;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 0.5rem 0.15rem;
      transition: var(--transition);
    }

    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      transition: width 0.3s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--accent-light);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
      width: 100%;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
      color: #111;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 0.55rem 1.4rem;
      border-radius: 999px;
      box-shadow: 0 4px 18px rgba(245, 158, 11, 0.3);
      transition: var(--transition);
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(245, 158, 11, 0.45);
      color: #111;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-primary);
      font-size: 1.2rem;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-toggle:hover {
      background: rgba(255, 255, 255, 0.12);
      color: var(--accent);
    }

    /* ---------- Article Hero ---------- */
    .article-hero {
      position: relative;
      padding: 160px 0 90px;
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      background-attachment: fixed;
    }

    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 14, 22, 0.55) 0%, rgba(11, 14, 22, 0.75) 50%, var(--bg-primary) 100%);
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 1.5rem;
      flex-wrap: wrap;
    }

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

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

    .breadcrumb .sep {
      color: rgba(255, 255, 255, 0.35);
    }

    .article-hero-title {
      font-size: clamp(1.75rem, 4vw, 2.75rem);
      font-weight: 800;
      line-height: 1.3;
      color: #fff;
      margin-bottom: 1.25rem;
      max-width: 820px;
      text-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
    }

    .article-hero-meta {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      flex-wrap: wrap;
      color: rgba(255, 255, 255, 0.78);
      font-size: 0.9rem;
    }

    .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }

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

    .meta-badge {
      display: inline-flex;
      align-items: center;
      padding: 0.3rem 0.9rem;
      background: rgba(245, 158, 11, 0.18);
      border: 1px solid rgba(245, 158, 11, 0.35);
      color: var(--accent-light);
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    /* ---------- Article Section ---------- */
    .article-section {
      padding: 80px 0;
      background: var(--bg-primary);
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 3rem;
    }

    .article-content {
      min-width: 0;
    }

    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
    }

    .article-card:hover {
      box-shadow: var(--shadow-lg);
      border-color: rgba(245, 158, 11, 0.15);
    }

    /* Article content typography for CMS output */
    .article-content-body {
      font-size: 1.05rem;
      color: var(--text-primary);
      line-height: 1.85;
    }

    .article-content-body p {
      margin-bottom: 1.5rem;
    }

    .article-content-body h2 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-primary);
      margin: 2.5rem 0 1.25rem;
      padding-left: 1rem;
      border-left: 4px solid var(--accent);
      line-height: 1.4;
    }

    .article-content-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      margin: 2rem 0 1rem;
      line-height: 1.4;
    }

    .article-content-body h4 {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--accent-light);
      margin: 1.75rem 0 0.85rem;
    }

    .article-content-body ul,
    .article-content-body ol {
      margin: 0 0 1.5rem 1.5rem;
      padding: 0;
    }

    .article-content-body ul li,
    .article-content-body ol li {
      margin-bottom: 0.65rem;
      position: relative;
      padding-left: 0.35rem;
    }

    .article-content-body ul {
      list-style: none;
    }

    .article-content-body ul li::before {
      content: "◆";
      color: var(--accent);
      font-size: 0.65rem;
      position: absolute;
      left: -1.2rem;
      top: 0.45em;
    }

    .article-content-body ol {
      list-style: decimal;
    }

    .article-content-body ol li::marker {
      color: var(--accent);
      font-weight: 700;
    }

    .article-content-body blockquote {
      margin: 1.5rem 0;
      padding: 1.25rem 1.5rem;
      background: rgba(245, 158, 11, 0.08);
      border-left: 4px solid var(--accent);
      border-radius: 0 0.75rem 0.75rem 0;
      color: var(--text-secondary);
      font-style: italic;
    }

    .article-content-body img {
      border-radius: var(--radius-md);
      margin: 1.5rem 0;
      box-shadow: var(--shadow-md);
    }

    .article-content-body a {
      color: var(--accent-light);
      border-bottom: 1px solid rgba(245, 158, 11, 0.3);
    }

    .article-content-body a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    .article-content-body strong {
      color: var(--text-primary);
      font-weight: 700;
    }

    .article-content-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 1.5rem 0;
      font-size: 0.95rem;
    }

    .article-content-body table th {
      background: rgba(245, 158, 11, 0.12);
      color: var(--accent-light);
      font-weight: 700;
      padding: 0.85rem 1rem;
      text-align: left;
      border: 1px solid var(--border);
    }

    .article-content-body table td {
      padding: 0.75rem 1rem;
      border: 1px solid var(--border);
      color: var(--text-secondary);
    }

    .article-content-body table tr:nth-child(even) {
      background: rgba(255, 255, 255, 0.02);
    }

    /* Tags & share */
    .article-tags {
      display: flex;
      align-items: flex-start;
      gap: 0.6rem;
      flex-wrap: wrap;
      padding-top: 1.75rem;
      margin-top: 2rem;
      border-top: 1px solid var(--border);
    }

    .tag-item {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      padding: 0.35rem 1rem;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      border-radius: 999px;
      font-size: 0.8rem;
      color: var(--text-secondary);
      transition: var(--transition);
    }

    .tag-item:hover {
      background: rgba(245, 158, 11, 0.1);
      border-color: rgba(245, 158, 11, 0.3);
      color: var(--accent-light);
    }

    .article-share {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      padding-top: 1.75rem;
      margin-top: 1.5rem;
      border-top: 1px solid var(--border);
    }

    .article-share span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .share-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--border);
      border-radius: 10px;
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .share-btn:hover {
      background: var(--accent);
      border-color: var(--accent);
      color: #111;
      transform: translateY(-2px);
    }

    /* Not found */
    .not-found-box {
      text-align: center;
      padding: 4rem 2rem;
    }

    .not-found-box i {
      font-size: 4rem;
      color: var(--accent);
      margin-bottom: 1.5rem;
    }

    .not-found-box h2 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 1rem;
    }

    .not-found-box p {
      color: var(--text-secondary);
      margin-bottom: 2rem;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
      color: #111;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 0.75rem 2rem;
      border-radius: 999px;
      box-shadow: 0 4px 18px rgba(245, 158, 11, 0.3);
      transition: var(--transition);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 28px rgba(245, 158, 11, 0.45);
      color: #111;
    }

    /* ---------- Sidebar ---------- */
    .article-sidebar {
      display: flex;
      flex-direction: column;
      gap: 1.75rem;
    }

    .sidebar-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.75rem;
      transition: var(--transition);
    }

    .sidebar-card:hover {
      border-color: rgba(245, 158, 11, 0.15);
      box-shadow: var(--shadow-md);
    }

    .sidebar-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.25rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

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

    .sidebar-list {
      list-style: none;
    }

    .sidebar-list li {
      padding: 0.55rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    .sidebar-list li:last-child {
      border-bottom: none;
    }

    .sidebar-list a {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.9rem;
      color: var(--text-secondary);
      transition: var(--transition);
    }

    .sidebar-list a i {
      font-size: 0.7rem;
      color: var(--accent);
    }

    .sidebar-list a:hover {
      color: var(--accent-light);
      padding-left: 0.35rem;
    }

    .sidebar-cta {
      background: linear-gradient(145deg, rgba(245, 158, 11, 0.16), rgba(217, 119, 6, 0.08));
      border: 1px solid rgba(245, 158, 11, 0.25);
    }

    .sidebar-cta h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--accent-light);
      margin-bottom: 0.75rem;
    }

    .sidebar-cta p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin-bottom: 1.25rem;
    }

    .sidebar-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      width: 100%;
      justify-content: center;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
      color: #111;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 0.7rem 1.5rem;
      border-radius: 12px;
      transition: var(--transition);
    }

    .sidebar-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(245, 158, 11, 0.35);
      color: #111;
    }

    /* ---------- Related Section ---------- */
    .related-section {
      padding: 70px 0;
      background: var(--bg-secondary);
      border-top: 1px solid var(--border);
    }

    .section-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .section-tagline {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--accent);
      background: rgba(245, 158, 11, 0.1);
      border: 1px solid rgba(245, 158, 11, 0.2);
      padding: 0.35rem 1.25rem;
      border-radius: 999px;
      margin-bottom: 1rem;
    }

    .section-title {
      font-size: clamp(1.5rem, 3vw, 2.25rem);
      font-weight: 800;
      color: var(--text-primary);
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-secondary);
      margin-top: 0.75rem;
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }

    .related-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition);
    }

    .related-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(245, 158, 11, 0.2);
    }

    .related-card-cover {
      position: relative;
      height: 180px;
      overflow: hidden;
    }

    .related-card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .related-card:hover .related-card-cover img {
      transform: scale(1.06);
    }

    .related-card-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(11, 14, 22, 0.85) 100%);
    }

    .related-card-body {
      padding: 1.5rem;
    }

    .related-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.45;
      margin-bottom: 0.75rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      transition: var(--transition);
    }

    .related-card:hover .related-card-title {
      color: var(--accent-light);
    }

    .related-card-meta {
      display: flex;
      align-items: center;
      gap: 1rem;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 0.9rem;
    }

    .related-card-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent);
      transition: var(--transition);
    }

    .related-card-btn:hover {
      color: var(--accent-light);
      gap: 0.7rem;
    }

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

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.25rem;
      max-width: 960px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(245, 158, 11, 0.2);
      box-shadow: var(--shadow-md);
    }

    .faq-question {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.6rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

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

    .faq-answer {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.75;
      padding-left: 1.45rem;
    }

    /* ---------- CTA Section ---------- */
    .cta-section {
      padding: 90px 0;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      background-attachment: fixed;
      position: relative;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11, 14, 22, 0.92) 0%, rgba(11, 14, 22, 0.78) 100%);
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 720px;
      margin: 0 auto;
    }

    .cta-title {
      font-size: clamp(1.75rem, 3.5vw, 2.5rem);
      font-weight: 800;
      color: #fff;
      line-height: 1.35;
      margin-bottom: 1rem;
    }

    .cta-title span {
      color: var(--accent);
    }

    .cta-desc {
      font-size: 1.05rem;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 2rem;
    }

    .cta-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .btn-gold {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
      color: #111;
      font-weight: 700;
      font-size: 1rem;
      padding: 0.9rem 2.4rem;
      border-radius: 999px;
      box-shadow: 0 6px 28px rgba(245, 158, 11, 0.35);
      transition: var(--transition);
    }

    .btn-gold:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 36px rgba(245, 158, 11, 0.5);
      color: #111;
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #fff;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.9rem 2rem;
      border-radius: 999px;
      transition: var(--transition);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(245, 158, 11, 0.4);
      color: var(--accent-light);
      transform: translateY(-3px);
    }

    /* ---------- Footer ---------- */
    .site-footer {
      background: #070a11;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding: 70px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 2.5rem;
      padding-bottom: 3rem;
    }

    .footer-brand .logo {
      margin-bottom: 1rem;
      font-size: 1.3rem;
      display: inline-flex;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 300px;
    }

    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.25rem;
      position: relative;
      padding-bottom: 0.75rem;
    }

    .footer-title::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.7rem;
    }

    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-secondary);
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--accent-light);
      padding-left: 0.35rem;
    }

    .footer-links .footer-contact {
      font-size: 0.9rem;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 0.5rem;
      transition: var(--transition);
    }

    .footer-links .footer-contact i {
      color: var(--accent);
      font-size: 0.85rem;
      width: 18px;
    }

    .footer-links .footer-contact a {
      color: var(--text-secondary);
    }

    .footer-links .footer-contact a:hover {
      color: var(--accent-light);
      padding-left: 0;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding: 1.5rem 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .footer-bottom a {
      color: var(--text-secondary);
    }

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

    /* ---------- Responsive ---------- */
    @media (max-width: 1024px) {
      .container {
        padding: 0 1.25rem;
      }

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

      .article-sidebar {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
      }

      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .main-nav {
        position: fixed;
        top: 72px;
        right: -100%;
        width: 280px;
        height: auto;
        max-height: calc(100vh - 72px);
        background: rgba(17, 24, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem 1.5rem;
        gap: 1.25rem;
        transition: right 0.35s ease;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 0 0 0 1.5rem;
        overflow-y: auto;
      }

      .main-nav.open {
        right: 0;
      }

      .main-nav .nav-link {
        font-size: 1.05rem;
        color: var(--text-secondary);
      }

      .main-nav .nav-cta {
        margin-top: 0.75rem;
        width: 100%;
        justify-content: center;
      }

      .nav-toggle {
        display: flex;
      }

      .article-hero {
        padding: 140px 0 70px;
        background-attachment: scroll;
      }

      .cta-section {
        background-attachment: scroll;
      }

      .article-card {
        padding: 1.5rem;
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
      }
    }

    @media (max-width: 520px) {
      .header-inner {
        height: 64px;
      }

      .main-nav {
        top: 64px;
      }

      .logo {
        font-size: 1.05rem;
      }

      .logo i {
        font-size: 1.1rem;
      }

      .article-hero {
        padding: 120px 0 60px;
      }

      .article-hero-title {
        font-size: 1.5rem;
      }

      .article-hero-meta {
        gap: 0.85rem;
        font-size: 0.82rem;
      }

      .article-section {
        padding: 50px 0;
      }

      .article-card {
        padding: 1.25rem;
        border-radius: 1rem;
      }

      .article-content-body {
        font-size: 0.98rem;
      }

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

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

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        padding-bottom: 2rem;
      }

      .footer-brand p {
        max-width: 100%;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem 0;
      }
    }

/* roulang page: category1 */
:root {
            --bg-dark: #0b1220;
            --bg-card: #131c30;
            --bg-section: #0f172a;
            --bg-deep: #081020;
            --gold: #d4a574;
            --gold-bright: #f0b97d;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --border-gold: rgba(212, 165, 116, 0.18);
            --border-strong: rgba(212, 165, 116, 0.32);
            --radius-lg: 20px;
            --radius-md: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.6);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 88px;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold);
            transition: box-shadow .3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 24px;
        }

        .logo {
            font-family: 'Noto Serif SC', serif;
            font-weight: 900;
            font-size: 1.35rem;
            letter-spacing: 1px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .logo i {
            color: var(--gold-bright);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 8px rgba(240, 185, 125, 0.45));
        }

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

        .nav-link {
            position: relative;
            display: inline-block;
            padding: 10px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            letter-spacing: .5px;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(212, 165, 116, 0.1);
        }

        .nav-link.active {
            color: var(--gold-bright);
            background: rgba(212, 165, 116, 0.14);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--gold), var(--gold-bright));
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: 8px;
            padding: 10px 26px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #0b1220;
            background: linear-gradient(135deg, var(--gold-bright), var(--gold));
            box-shadow: 0 6px 20px rgba(212, 165, 116, 0.35);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(212, 165, 116, 0.5);
            color: #0b1220;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            border: 1px solid var(--border-gold);
            color: var(--gold-bright);
            font-size: 1.2rem;
            background: rgba(212, 165, 116, 0.08);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(212, 165, 116, 0.18);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 190px 0 110px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.78) 0%, rgba(11, 18, 32, 0.65) 50%, rgba(11, 18, 32, 0.92) 100%);
            z-index: -1;
        }

        .hero-content {
            max-width: 800px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--gold-bright);
            background: rgba(212, 165, 116, 0.14);
            border: 1px solid var(--border-gold);
            margin-bottom: 28px;
            text-transform: uppercase;
        }

        .hero-content h1 {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: 2px;
            margin-bottom: 24px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
        }

        .hero-sub {
            font-size: 1.15rem;
            color: rgba(241, 245, 249, 0.85);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 0.98rem;
            letter-spacing: .5px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary {
            color: #0b1220;
            background: linear-gradient(135deg, var(--gold-bright), var(--gold));
            box-shadow: 0 8px 24px rgba(212, 165, 116, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 165, 116, 0.5);
            color: #0b1220;
        }

        .btn-ghost {
            color: var(--text-primary);
            border-color: var(--border-strong);
            background: rgba(212, 165, 116, 0.08);
        }

        .btn-ghost:hover {
            background: rgba(212, 165, 116, 0.16);
            border-color: var(--gold);
            transform: translateY(-3px);
        }

        /* ===== Sections ===== */
        .section {
            padding: 100px 0;
            position: relative;
        }

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

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 60px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--gold-bright);
            background: rgba(212, 165, 116, 0.12);
            border: 1px solid var(--border-gold);
            margin-bottom: 18px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(1.7rem, 3vw, 2.5rem);
            font-weight: 900;
            line-height: 1.35;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.8;
        }

        /* ===== Method Cards ===== */
        .method-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .method-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .method-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 2px solid var(--border-gold);
            transition: transform .5s ease;
        }

        .method-card:hover .method-img {
            transform: scale(1.04);
        }

        .method-body {
            padding: 28px 26px 30px;
            position: relative;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .method-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            font-size: 1.3rem;
            color: var(--gold-bright);
            background: rgba(212, 165, 116, 0.14);
            border: 1px solid var(--border-gold);
            margin-bottom: 20px;
            box-shadow: 0 6px 16px rgba(212, 165, 116, 0.12);
        }

        .method-body h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .method-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
            flex: 1;
        }

        .method-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--gold-bright);
            font-weight: 700;
            font-size: 0.92rem;
        }

        .method-link:hover {
            gap: 14px;
            color: var(--gold);
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            counter-reset: step;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 12%;
            right: 12%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
        }

        .step-item {
            text-align: center;
            padding: 32px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
        }

        .step-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .step-num {
            position: absolute;
            top: 16px;
            right: 20px;
            font-family: 'Noto Serif SC', serif;
            font-size: 2.6rem;
            font-weight: 900;
            color: rgba(212, 165, 116, 0.14);
            line-height: 1;
        }

        .step-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 20px;
            font-size: 1.6rem;
            color: var(--gold-bright);
            background: rgba(212, 165, 116, 0.14);
            border: 1px solid var(--border-gold);
            box-shadow: 0 8px 20px rgba(212, 165, 116, 0.15);
        }

        .step-item h3 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
        }

        /* ===== Tips ===== */
        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .tip-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--gold), var(--gold-bright), transparent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .4s ease;
        }

        .tip-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-strong);
        }

        .tip-card:hover::after {
            transform: scaleX(1);
        }

        .tip-card i {
            font-size: 1.8rem;
            color: var(--gold-bright);
            margin-bottom: 18px;
            display: block;
            filter: drop-shadow(0 0 8px rgba(240, 185, 125, 0.3));
        }

        .tip-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .tip-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-strong);
        }

        .faq-item[open] {
            border-color: var(--border-strong);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-weight: 700;
            font-size: 1.02rem;
            cursor: pointer;
            list-style: none;
            color: var(--text-primary);
            transition: var(--transition);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--gold-bright);
        }

        .faq-item summary i {
            color: var(--gold);
            font-size: 0.9rem;
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item summary::before {
            content: 'Q ';
            font-family: 'Noto Serif SC', serif;
            color: var(--gold-bright);
            font-weight: 900;
            font-size: 1.1rem;
        }

        .faq-item p {
            padding: 0 28px 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
            margin-top: -4px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 110px 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            isolation: isolate;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 18, 32, 0.82);
            z-index: -1;
        }

        .cta-inner {
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 900;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .cta-inner p {
            color: rgba(241, 245, 249, 0.85);
            font-size: 1.08rem;
            margin-bottom: 36px;
        }

        .btn-lg {
            padding: 18px 48px;
            font-size: 1.08rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-gold);
            padding: 70px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.1fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 1.3rem;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.9;
            max-width: 320px;
        }

        .footer-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding: 0;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.92rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--gold-bright);
            padding-left: 5px;
        }

        .footer-contact {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            word-break: break-all;
        }

        .footer-contact i {
            color: var(--gold);
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 0.85rem;
        }

        .footer-bottom a {
            color: var(--gold);
        }

        .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 36px;
            }
        }

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

            .logo {
                font-size: 1.1rem;
            }

            .main-nav {
                position: absolute;
                top: 68px;
                left: 16px;
                right: 16px;
                background: rgba(11, 18, 32, 0.98);
                border: 1px solid var(--border-gold);
                border-radius: 16px;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 8px;
                display: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
                backdrop-filter: blur(20px);
            }

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

            .nav-link {
                display: flex;
                align-items: center;
                padding: 14px 18px;
                border-radius: 12px;
            }

            .nav-link.active {
                background: rgba(212, 165, 116, 0.16);
            }

            .nav-link.active::after {
                bottom: auto;
                left: 12px;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 18px;
            }

            .nav-cta {
                margin: 8px 0 0;
                justify-content: center;
                padding: 14px 18px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .page-hero {
                padding: 150px 0 80px;
            }

            .section {
                padding: 70px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .steps-grid::before {
                display: none;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo {
                font-size: 1rem;
            }

            .hero-badge {
                font-size: 0.75rem;
            }

            .hero-content h1 {
                font-size: 1.8rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .method-body {
                padding: 22px 20px 24px;
            }

            .faq-item summary {
                padding: 18px 20px;
                font-size: 0.95rem;
            }

            .faq-item p {
                padding: 0 20px 20px;
            }

            .section-head h2 {
                font-size: 1.5rem;
            }

            .btn-lg {
                padding: 16px 36px;
                font-size: 1rem;
            }

            .footer-bottom {
                font-size: 0.8rem;
                line-height: 1.6;
            }
        }

/* roulang page: category2 */
:root {
  --bg-primary: #0b1020;
  --bg-secondary: #111a2e;
  --bg-card: #151f36;
  --accent: #f5b84b;
  --accent-deep: #e8961a;
  --text-main: #f0f3f8;
  --text-muted: #8b9bb4;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  --transition: 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-wide { max-width: 1440px; }

/*========== Header ==========*/
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.site-header.scrolled {
  background: rgba(11, 16, 32, 0.98);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.25rem; font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo i { color: var(--accent); font-size: 1.4rem; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.nav-link {
  color: var(--text-muted);
  font-size: 0.95rem; font-weight: 500;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.3s, border-color 0.3s;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--accent); border-bottom-color: var(--accent); }
.nav-cta {
  background: linear-gradient(135deg, #f5b84b, #d97706);
  color: #0b1020 !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 700; font-size: 0.9rem;
  transition: transform 0.3s, box-shadow 0.3s;
  display: inline-block;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 184, 75, 0.35); }
.nav-toggle {
  display: none; background: none; border: none;
  color: var(--text-main); font-size: 1.4rem;
  padding: 8px; border-radius: 8px;
}

/*========== Banner ==========*/
.cat-banner {
  position: relative;
  background-position: center;
  background-size: cover;
  padding: 150px 0 90px;
  margin-top: 72px;
}
.cat-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11, 16, 32, 0.75) 0%, rgba(11, 16, 32, 0.55) 40%, #0b1020 100%);
}
.cat-banner-content {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.breadcrumb {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; flex-wrap: wrap;
  font-size: 0.85rem; color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--accent); transition: opacity 0.3s; }
.breadcrumb a:hover { opacity: 0.8; }
.cat-banner h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: 1px;
  line-height: 1.2;
  margin-bottom: 16px;
}
.cat-banner .subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 720px;
  margin: 0 auto 40px;
}
.cat-stats {
  display: flex; justify-content: center;
  gap: 40px; flex-wrap: wrap;
}
.cat-stats .stat {
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 28px;
  backdrop-filter: blur(8px);
}
.cat-stats .stat strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}
.cat-stats .stat span { font-size: 0.85rem; color: var(--text-muted); }

/*========== Section ==========*/
.section { padding: 80px 0; position: relative; }
.section-dark {
  background: linear-gradient(180deg, #0d1428 0%, #111a2e 50%, #0d1428 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}
.section-head .head-tag {
  display: inline-block;
  background: rgba(245, 184, 75, 0.1);
  color: var(--accent);
  border: 1px solid rgba(245, 184, 75, 0.3);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

/*========== Topic Cards ==========*/
.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  height: 100%;
}
.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(245, 184, 75, 0.25);
}
.topic-img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.topic-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.topic-card:hover .topic-img img { transform: scale(1.05); }
.topic-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(11, 16, 32, 0.4) 100%);
}
.topic-tag {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: rgba(245, 184, 75, 0.95);
  color: #0b1020;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
}
.topic-body { padding: 20px; }
.topic-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.topic-body p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 16px;
}
.topic-link {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s;
}
.topic-link:hover { gap: 10px; }

/*========== Deep Cards ==========*/
.deep-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.deep-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}
.deep-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.deep-card:first-child {
  grid-column: 1 / -1;
  flex-direction: row;
}
.deep-card:first-child .deep-img {
  width: 50%;
  aspect-ratio: 16/10;
}
.deep-card .deep-img {
  position: relative;
  aspect-ratio: 16/12;
  overflow: hidden;
}
.deep-card .deep-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.deep-card:hover .deep-img img { transform: scale(1.03); }
.deep-card .deep-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11, 16, 32, 0.3) 100%);
}
.deep-content { padding: 28px; flex: 1; }
.deep-content .badge {
  display: inline-block;
  background: rgba(245, 184, 75, 0.12);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  border: 1px solid rgba(245, 184, 75, 0.25);
  margin-bottom: 14px;
}
.deep-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}
.deep-content > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: #c5d1e0;
}
.feature-list li i {
  color: var(--accent);
  font-size: 0.8rem;
  margin-top: 3px;
}

/*========== Tip Cards ==========*/
.tip-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
  height: 100%;
}
.tip-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 184, 75, 0.25);
  background: rgba(245, 184, 75, 0.04);
}
.tip-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(245, 184, 75, 0.2), rgba(245, 184, 75, 0.05));
  border: 1px solid rgba(245, 184, 75, 0.3);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--accent);
  margin-bottom: 18px;
}
.tip-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.tip-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/*========== Steps ==========*/
.steps-section {
  background-position: center;
  background-size: cover;
  position: relative;
}
.steps-section::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(11, 16, 32, 0.82);
}
.steps-section .container { position: relative; z-index: 2; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 34px 22px;
  transition: transform 0.3s, border-color 0.3s;
  backdrop-filter: blur(8px);
}
.step-item:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 184, 75, 0.3);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px; height: 54px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #0b1020;
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: 50%;
  margin-bottom: 18px;
}
.step-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.step-item p {
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

/*========== FAQ ==========*/
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item.active {
  border-color: rgba(245, 184, 75, 0.3);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  transition: color 0.3s;
}
.faq-question:hover { color: var(--accent); }
.faq-question i {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: transform 0.3s, color 0.3s;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/*========== CTA ==========*/
.cta-section {
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  position: relative;
  padding: 100px 0;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(11, 16, 32, 0.75);
}
.cta-inner {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-inner p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.6;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #f5b84b, #d97706);
  color: #0b1020;
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 50px;
  transition: transform 0.3s, box-shadow 0.3s;
}
.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(245, 184, 75, 0.4);
}

/*========== Footer ==========*/
.site-footer {
  background: #0a0e1a;
  border-top: 1px solid var(--border);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 340px;
}
.footer-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color 0.3s;
}
.footer-links a:hover { color: var(--accent); }
.footer-contact {
  color: var(--text-muted);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact i {
  width: 18px;
  text-align: center;
  color: var(--accent);
  font-size: 0.8rem;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }

/*========== Responsive ==========*/
@media (max-width: 1024px) {
  .main-nav { gap: 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .deep-card:first-child { flex-direction: column; }
  .deep-card:first-child .deep-img { width: 100%; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .cat-banner { padding: 120px 0 60px; }
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: #0b1020;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    transform: translateY(-130%);
    transition: transform 0.35s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-toggle { display: block; }
  .nav-cta { width: 100%; text-align: center; }
  .deep-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .cat-stats { gap: 16px; }
  .cat-stats .stat { padding: 14px 18px; }
  .cat-stats .stat strong { font-size: 1.2rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section { padding: 70px 0; }
}

@media (max-width: 520px) {
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
  .logo { font-size: 1.05rem; }
  .logo i { font-size: 1.15rem; }
  .cat-banner h1 { font-size: 1.6rem; }
  .section-head h2 { font-size: 1.4rem; }
  .deep-content { padding: 20px; }
  .topic-body { padding: 16px; }
  .footer-bottom { font-size: 0.78rem; }
}