/* roulang page: index */
:root {
  --primary: #00f5ff;
  --primary-dim: rgba(0, 245, 255, 0.15);
  --primary-glow: rgba(0, 245, 255, 0.35);
  --secondary: #ff2d95;
  --secondary-dim: rgba(255, 45, 149, 0.15);
  --accent: #ffd700;
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-elevated: #1a2332;
  --bg-surface: #0f1724;
  --text-primary: #e8edf5;
  --text-secondary: #8899b4;
  --text-muted: #5a6a82;
  --border: #1e2d45;
  --border-light: #2a3d5a;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--bg-dark); color: var(--text-primary); line-height: 1.6; font-size: 16px; overflow-x: hidden; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover, a:focus { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; }
button { cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
.section { padding: 80px 0; }
@media (max-width: 768px) { .section { padding: 56px 0; } }
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--primary); background: var(--primary-dim); padding: 4px 14px; border-radius: 20px; margin-bottom: 12px; }
.section-title { font-size: 2.25rem; font-weight: 700; line-height: 1.25; margin-bottom: 16px; color: var(--text-primary); }
.section-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 680px; line-height: 1.7; }
@media (max-width: 768px) { .section-title { font-size: 1.65rem; } .section-subtitle { font-size: 0.95rem; } }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; transition: all var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--primary); color: #0a0e17; border-color: var(--primary); }
.btn-primary:hover, .btn-primary:focus { background: transparent; color: var(--primary); box-shadow: 0 0 20px var(--primary-glow); }
.btn-secondary { background: transparent; color: var(--text-primary); border-color: var(--border-light); }
.btn-secondary:hover, .btn-secondary:focus { border-color: var(--primary); color: var(--primary); }
.btn-glow { box-shadow: 0 0 24px var(--primary-glow); }
@media (max-width: 520px) { .btn { padding: 10px 20px; font-size: 0.875rem; } }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all var(--transition); }
.card:hover { transform: translateY(-4px); border-color: var(--primary-dim); box-shadow: var(--shadow); }
.tag { display: inline-block; padding: 2px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; background: var(--primary-dim); color: var(--primary); }
.tag-secondary { background: var(--secondary-dim); color: var(--secondary); }
.badge { display: inline-block; padding: 2px 10px; border-radius: 4px; font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border); }
.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-template-columns: 1fr; } .grid-4 { grid-template-columns: 1fr 1fr; gap: 16px; } }
@media (max-width: 520px) { .grid-4 { grid-template-columns: 1fr; } }
header { position: sticky; top: 0; z-index: 100; background: rgba(10, 14, 23, 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.25rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--primary); font-size: 1.3rem; }
.logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo:hover { opacity: 0.9; }
nav { display: flex; align-items: center; gap: 8px; }
nav a { padding: 6px 16px; border-radius: 20px; font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); transition: all var(--transition); position: relative; }
nav a:hover, nav a:focus { color: var(--primary); background: var(--primary-dim); }
nav a.active { color: var(--primary); background: var(--primary-dim); box-shadow: inset 0 -2px 0 var(--primary), 0 0 16px var(--primary-glow); }
.nav-cta { background: var(--primary); color: #0a0e17 !important; font-weight: 600; padding: 6px 20px; border-radius: 20px; }
.nav-cta:hover { background: transparent !important; color: var(--primary) !important; box-shadow: 0 0 20px var(--primary-glow); }
.mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); background: none; border: none; padding: 4px; }
@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  nav { position: fixed; top: 64px; left: 0; right: 0; background: rgba(10,14,23,0.98); backdrop-filter: blur(16px); flex-direction: column; padding: 20px 24px; gap: 12px; border-bottom: 1px solid var(--border); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: all var(--transition); }
  nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  nav a { width: 100%; text-align: center; padding: 10px 16px; }
  .nav-cta { margin-top: 4px; }
}
.hero { position: relative; min-height: 90vh; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; z-index: 0; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(10,14,23,0.85) 0%, rgba(10,14,23,0.60) 50%, rgba(10,14,23,0.40) 100%); }
.hero-content { position: relative; z-index: 1; max-width: 720px; padding: 40px 0; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-dim); color: var(--primary); padding: 6px 18px; border-radius: 30px; font-size: 0.8rem; font-weight: 500; margin-bottom: 20px; border: 1px solid rgba(0,245,255,0.15); }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero h1 .highlight { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 1.15rem; color: var(--text-secondary); line-height: 1.8; max-width: 600px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.hero-stat h3 { font-size: 2rem; font-weight: 700; color: var(--primary); }
.hero-stat p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0; }
@media (max-width: 768px) {
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat h3 { font-size: 1.5rem; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; }
}
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.intro-image { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
.intro-image img { width: 100%; height: 400px; object-fit: cover; }
.intro-text h2 { font-size: 2rem; font-weight: 700; margin-bottom: 16px; }
.intro-text p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.intro-feature { display: flex; align-items: center; gap: 10px; color: var(--text-secondary); font-size: 0.95rem; }
.intro-feature i { color: var(--primary); font-size: 1rem; width: 20px; }
@media (max-width: 768px) { .intro-grid { grid-template-columns: 1fr; gap: 32px; } .intro-features { grid-template-columns: 1fr; } }
.features-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 24px; text-align: center; transition: all var(--transition); }
.feature-card:hover { transform: translateY(-6px); border-color: var(--primary-dim); box-shadow: var(--shadow); }
.feature-icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-dim); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 1.6rem; color: var(--primary); transition: all var(--transition); }
.feature-card:hover .feature-icon { background: var(--primary); color: #0a0e17; }
.feature-card h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; } }
.category-section { background: var(--bg-surface); }
.category-card { display: flex; align-items: center; gap: 32px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition); }
.category-card:hover { border-color: var(--primary-dim); transform: translateY(-2px); box-shadow: var(--shadow); }
.category-img { width: 240px; height: 160px; border-radius: var(--radius); overflow: hidden; flex-shrink: 0; border: 1px solid var(--border); }
.category-img img { width: 100%; height: 100%; object-fit: cover; }
.category-info h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.category-info p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; }
@media (max-width: 768px) { .category-card { flex-direction: column; align-items: stretch; } .category-img { width: 100%; height: 200px; } }
.posts-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
.post-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all var(--transition); }
.post-card:hover { transform: translateY(-4px); border-color: var(--primary-dim); box-shadow: var(--shadow); }
.post-card-image { height: 180px; overflow: hidden; background: var(--bg-elevated); }
.post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.post-card:hover .post-card-image img { transform: scale(1.05); }
.post-card-body { padding: 20px 24px 24px; }
.post-card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 10px; }
.post-card-meta .tag { font-size: 0.7rem; }
.post-card h3 { font-size: 1.05rem; font-weight: 600; line-height: 1.4; margin-bottom: 8px; }
.post-card h3 a { color: var(--text-primary); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card-empty { grid-column: 1 / -1; text-align: center; padding: 48px; color: var(--text-muted); font-size: 1rem; background: var(--bg-card); border-radius: var(--radius); border: 1px dashed var(--border); }
@media (max-width: 1024px) { .posts-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .posts-grid { grid-template-columns: 1fr; } }
.stats-section { background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-card) 100%); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 32px; text-align: center; }
.stat-item h3 { font-size: 2.6rem; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-item p { font-size: 0.95rem; color: var(--text-secondary); margin-top: 4px; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; } .stat-item h3 { font-size: 2rem; } }
@media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; } }
.steps-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }
.step-card { text-align: center; padding: 24px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); transition: all var(--transition); position: relative; }
.step-card:hover { border-color: var(--primary-dim); transform: translateY(-4px); }
.step-number { width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--primary-dim); color: var(--primary); font-weight: 700; font-size: 1.1rem; margin: 0 auto 16px; }
.step-card h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.step-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
@media (max-width: 1024px) { .steps-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps-grid { grid-template-columns: 1fr; } }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
.faq-question { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 1.05rem; font-weight: 500; color: var(--text-primary); background: none; border: none; width: 100%; text-align: left; padding: 4px 0; transition: color var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-question i { font-size: 1rem; color: var(--text-muted); transition: transform var(--transition); }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; color: var(--text-secondary); line-height: 1.7; font-size: 0.95rem; }
.faq-item.open .faq-answer { max-height: 300px; padding-top: 12px; }
.cta-section { background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%); border-top: 1px solid var(--border); text-align: center; }
.cta-section h2 { font-size: 2.2rem; font-weight: 700; margin-bottom: 12px; }
.cta-section p { color: var(--text-secondary); max-width: 540px; margin: 0 auto 28px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 520px) { .cta-section h2 { font-size: 1.6rem; } }
footer { background: var(--bg-dark); border-top: 1px solid var(--border); padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand .logo { font-size: 1.1rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: var(--bg-card); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--text-secondary); transition: all var(--transition); }
.footer-social a:hover { background: var(--primary-dim); color: var(--primary); border-color: var(--primary); }
.footer-col h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; color: var(--text-primary); }
.footer-col a { display: block; font-size: 0.875rem; color: var(--text-muted); padding: 4px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--text-muted); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }
@media (max-width: 520px) {
  .hero-stats { gap: 16px; }
  .hero-stat { flex: 1 1 40%; }
  .post-card-image { height: 160px; }
}
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
::selection { background: var(--primary-dim); color: var(--primary); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #f0c040;
  --primary-glow: rgba(240, 192, 64, 0.35);
  --primary-dim: rgba(240, 192, 64, 0.12);
  --secondary: #ff6b35;
  --secondary-glow: rgba(255, 107, 53, 0.3);
  --dark-bg: #0b0d12;
  --dark-surface: #13171f;
  --dark-card: #1a1f2b;
  --dark-border: #2a3040;
  --dark-hover: #222a3a;
  --text-primary: #f0f2f5;
  --text-secondary: #a8b2c8;
  --text-muted: #6a7590;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --shadow-card: 0 6px 24px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 30px var(--primary-glow);
  --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --container-max: 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);
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: #fcd870; text-shadow: 0 0 8px var(--primary-glow); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
::selection { background: var(--primary); color: #0b0d12; }

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
h4 { font-size: 1.15rem; }
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-dim);
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 12px;
  border: 1px solid rgba(240, 192, 64, 0.15);
}

/* ===== Header / Navigation ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(11, 13, 18, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dark-border);
  z-index: 1000;
  transition: var(--transition);
}
header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.6); }
nav#mainNav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 24px;
  max-width: var(--container-max);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.logo i { color: var(--primary); font-size: 1.5rem; filter: drop-shadow(0 0 8px var(--primary-glow)); }
.logo span { background: linear-gradient(135deg, var(--primary), #fcd870); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); background: var(--dark-hover); }
.nav-links a.active {
  color: var(--primary);
  background: var(--primary-dim);
  box-shadow: inset 0 0 0 1px rgba(240, 192, 64, 0.2);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  box-shadow: 0 0 12px var(--primary-glow);
}
.nav-cta {
  background: linear-gradient(135deg, var(--primary), #e6a800) !important;
  color: #0b0d12 !important;
  font-weight: 700 !important;
  padding: 8px 22px !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: 0 0 20px rgba(240, 192, 64, 0.2);
  transition: var(--transition);
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(240, 192, 64, 0.4) !important; color: #0b0d12 !important; }
.nav-cta i { margin-right: 6px; }
.mobile-toggle { display: none; background: none; color: var(--text-primary); font-size: 1.6rem; cursor: pointer; padding: 4px; }
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: var(--nav-height); left: 0; width: 100%; background: rgba(11,13,18,0.97); backdrop-filter: blur(20px); flex-direction: column; gap: 4px; padding: 16px 24px 24px; border-bottom: 1px solid var(--dark-border); }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; padding: 12px 16px; }
  .mobile-toggle { display: block; }
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 120px 0 40px;
  background: linear-gradient(160deg, #0b0d12 0%, #13171f 60%, #1a1f2b 100%);
  border-bottom: 1px solid var(--dark-border);
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(240,192,64,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.article-meta .badge {
  display: inline-block;
  background: var(--primary-dim);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid rgba(240,192,64,0.15);
}
.article-meta .date i { margin-right: 6px; }
.article-hero h1 {
  max-width: 900px;
  margin-bottom: 16px;
  line-height: 1.2;
}
.article-hero .lead {
  max-width: 720px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }

/* ===== Article Content ===== */
.article-main {
  padding: 60px 0 80px;
  background: var(--dark-bg);
}
.article-body {
  max-width: 800px;
  margin: 0 auto;
  background: var(--dark-surface);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  border: 1px solid var(--dark-border);
  box-shadow: var(--shadow-card);
}
.article-body .content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}
.article-body .content p { margin-bottom: 1.4em; }
.article-body .content h2, .article-body .content h3 { color: var(--text-primary); margin-top: 1.8em; margin-bottom: 0.6em; }
.article-body .content h2 { font-size: 1.6rem; }
.article-body .content h3 { font-size: 1.25rem; }
.article-body .content ul, .article-body .content ol { margin-bottom: 1.4em; padding-left: 1.6em; }
.article-body .content li { margin-bottom: 0.5em; list-style: disc; }
.article-body .content img { border-radius: var(--radius-md); margin: 1.5em 0; box-shadow: var(--shadow-card); }
.article-body .content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--dark-card);
  padding: 16px 24px;
  margin: 1.5em 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}
.article-body .content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body .content a:hover { color: #fcd870; }
.article-body .content .not-found {
  text-align: center;
  padding: 60px 20px;
  font-size: 1.2rem;
  color: var(--text-muted);
}
.article-body .content .not-found a { display: inline-block; margin-top: 16px; padding: 10px 28px; background: var(--primary); color: #0b0d12; border-radius: var(--radius-sm); font-weight: 600; text-decoration: none; }
.article-body .content .not-found a:hover { background: #fcd870; }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--dark-border);
}
.article-tags .tag {
  display: inline-block;
  background: var(--dark-card);
  color: var(--text-secondary);
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 0.82rem;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}
.article-tags .tag:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-dim); }
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--dark-border);
  flex-wrap: wrap;
}
.article-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--dark-card);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.92rem;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}
.article-nav a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-dim); }
@media (max-width: 768px) {
  .article-body { padding: 28px 20px; }
  .article-hero h1 { font-size: 1.8rem; }
  .article-hero .lead { font-size: 1rem; }
  .article-nav { flex-direction: column; align-items: stretch; }
}

/* ===== Related Section ===== */
.related-section {
  padding: 60px 0;
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
}
.related-section h2 { margin-bottom: 32px; text-align: center; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.related-card {
  background: var(--dark-card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}
.related-card:hover { border-color: var(--primary); box-shadow: var(--shadow-card); transform: translateY(-4px); }
.related-card .card-cat {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.related-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.related-card h3 a { color: var(--text-primary); }
.related-card h3 a:hover { color: var(--primary); }
.related-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.related-card .date { font-size: 0.8rem; color: var(--text-muted); margin-top: 12px; display: block; }

/* ===== CTA ===== */
.cta-section {
  padding: 70px 0;
  background: linear-gradient(160deg, #0b0d12, #13171f);
  text-align: center;
  border-top: 1px solid var(--dark-border);
}
.cta-section h2 { margin-bottom: 12px; }
.cta-section p { color: var(--text-secondary); max-width: 560px; margin: 0 auto 28px; font-size: 1.05rem; }
.cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--primary), #e6a800);
  color: #0b0d12 !important;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 25px rgba(240, 192, 64, 0.2);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 40px rgba(240, 192, 64, 0.35) !important; color: #0b0d12 !important; }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: transparent;
  color: var(--text-primary) !important;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--dark-border);
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary) !important; background: var(--primary-dim); }

/* ===== Footer ===== */
footer {
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; margin-bottom: 20px; max-width: 360px; }
.footer-social { display: flex; gap: 14px; }
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--dark-card);
  border-radius: 50%;
  color: var(--text-secondary);
  border: 1px solid var(--dark-border);
  transition: var(--transition);
  font-size: 1.1rem;
}
.footer-social a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-dim); transform: translateY(-3px); }
.footer-col h4 { font-size: 1rem; margin-bottom: 18px; color: var(--text-primary); }
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .article-body { padding: 24px 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-section .btn-group { flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
  .article-hero h1 { font-size: 1.5rem; }
  .article-meta { font-size: 0.8rem; gap: 8px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #00f0ff;
            --primary-dim: rgba(0, 240, 255, 0.15);
            --primary-glow: rgba(0, 240, 255, 0.4);
            --accent: #ff6b35;
            --accent-dim: rgba(255, 107, 53, 0.2);
            --bg-dark: #0b0e1a;
            --bg-card: #12162a;
            --bg-card-hover: #1a1f3a;
            --bg-section: #0f1322;
            --bg-section-alt: #0d1020;
            --text-main: #e8edf5;
            --text-secondary: #8a93b5;
            --text-weak: #5a6488;
            --border-color: rgba(0, 240, 255, 0.12);
            --border-glow: rgba(0, 240, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 56px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1240px;
            --header-h: 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-main);
            background: var(--bg-dark);
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header / Nav ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-h);
            transition: var(--transition);
        }
        header.scrolled {
            background: rgba(11, 14, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
            filter: drop-shadow(0 0 8px var(--primary-glow));
        }
        .logo span {
            background: linear-gradient(135deg, #fff 60%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover span {
            background: linear-gradient(135deg, var(--primary), #fff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        #mainNav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        #mainNav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        #mainNav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--primary-glow);
            transition: var(--transition);
        }
        #mainNav a:hover {
            color: #fff;
            background: var(--primary-dim);
        }
        #mainNav a:hover::after {
            width: 60%;
        }
        #mainNav a.active {
            color: #fff;
            background: var(--primary-dim);
        }
        #mainNav a.active::after {
            width: 60%;
        }

        #mainNav .nav-cta {
            background: linear-gradient(135deg, var(--accent), #e85a2a);
            color: #fff !important;
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
            transition: var(--transition);
            margin-left: 8px;
        }
        #mainNav .nav-cta::after {
            display: none;
        }
        #mainNav .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 107, 53, 0.45);
            background: linear-gradient(135deg, #ff7a4a, #d94d1a);
        }
        #mainNav .nav-cta i {
            margin-right: 6px;
            font-size: 13px;
        }

        /* mobile toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 28px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            margin-top: var(--header-h);
            min-height: 420px;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 26, 0.92) 40%, rgba(11, 14, 26, 0.6) 70%, transparent 100%);
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }
        .category-hero .breadcrumb a {
            color: var(--text-secondary);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--primary);
        }
        .category-hero .breadcrumb .sep {
            color: var(--text-weak);
        }
        .category-hero .breadcrumb .current {
            color: var(--primary);
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .category-hero h1 i {
            color: var(--primary);
            filter: drop-shadow(0 0 12px var(--primary-glow));
            margin-right: 12px;
        }
        .category-hero .subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .category-hero .hero-stats .stat-num {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat-num small {
            font-size: 16px;
            color: var(--primary);
            font-weight: 500;
            margin-left: 4px;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-alt2 {
            background: var(--bg-section-alt);
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        /* ===== 分类卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .sport-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .sport-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-md), var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .sport-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .sport-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .sport-card:hover .card-img img {
            transform: scale(1.05);
        }
        .sport-card .card-img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #0b0e1a;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .sport-card .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .sport-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .sport-card .card-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .sport-card .card-footer {
            padding: 0 20px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .sport-card .card-footer .tag {
            font-size: 13px;
            color: var(--text-weak);
            background: rgba(255, 255, 255, 0.04);
            padding: 4px 12px;
            border-radius: 50px;
        }
        .sport-card .card-footer .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .sport-card .card-footer .card-link i {
            font-size: 12px;
            transition: var(--transition);
        }
        .sport-card:hover .card-footer .card-link i {
            transform: translateX(4px);
        }

        /* ===== 赛事流程板块 ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .flow-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            text-align: center;
        }
        .flow-step:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .flow-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-dim);
            color: var(--primary);
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            border: 1px solid var(--border-glow);
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .flow-step h4 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== 数据/统计区块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .stat-card .stat-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .stat-card .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-card .stat-num small {
            font-size: 18px;
            color: var(--primary);
            font-weight: 500;
        }
        .stat-card .stat-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            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-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            transition: var(--transition);
            color: var(--text-weak);
            font-size: 14px;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-a {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            border: 1px solid var(--border-glow);
            box-shadow: var(--shadow-glow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cta-block .cta-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-block .cta-text p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 500px;
        }
        .cta-block .cta-btn {
            background: linear-gradient(135deg, var(--accent), #e85a2a);
            color: #fff;
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 17px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 6px 30px rgba(255, 107, 53, 0.35);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .cta-block .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255, 107, 53, 0.5);
            color: #fff;
        }
        .cta-block .cta-btn i {
            font-size: 16px;
        }

        /* ===== 内容列表 ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .content-list .list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .content-list .list-item:hover {
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .content-list .list-item .item-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-dim);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
        }
        .content-list .list-item .item-info {
            flex: 1;
        }
        .content-list .list-item .item-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
        }
        .content-list .list-item .item-info p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .content-list .list-item .item-meta {
            font-size: 13px;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        /* ===== 标签 ===== */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            background: var(--primary-dim);
            color: var(--primary);
            border: 1px solid var(--border-glow);
            transition: var(--transition);
            cursor: default;
        }
        .tag:hover {
            background: rgba(0, 240, 255, 0.2);
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .tag i {
            font-size: 12px;
        }

        /* ===== Footer ===== */
        footer {
            background: #080b16;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 16px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 18px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: var(--primary-dim);
            color: var(--primary);
            border-color: var(--border-glow);
            transform: translateY(-3px);
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom span {
            color: var(--text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            #mainNav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(11, 14, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            #mainNav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            #mainNav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            #mainNav .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }

            .category-hero {
                min-height: 320px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .subtitle {
                font-size: 16px;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .hero-stats .stat-num {
                font-size: 24px;
            }

            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-block {
                padding: 36px 24px;
                flex-direction: column;
                text-align: center;
            }
            .cta-block .cta-text p {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-block .cta-btn {
                padding: 14px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
        }