/* roulang page: index */
:root {
  --primary: #e8a83e;
  --primary-dark: #c98a2a;
  --primary-light: #f5d48a;
  --secondary: #1a1f36;
  --secondary-light: #2a2f4a;
  --bg-dark: #0b0d1a;
  --bg-card: #12152a;
  --bg-light: #f7f8fc;
  --text-primary: #f0f2f8;
  --text-secondary: #a8b0cc;
  --text-dark: #1a1f36;
  --text-muted: #6b7294;
  --border-color: #2a2f4a;
  --border-light: #e2e5f0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-light: 0 4px 20px rgba(0,0,0,0.08);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container: 1200px;
  --gap: 32px;
  --gap-sm: 20px;
}
*, *::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;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gap); }
@media (max-width: 768px) { .container { padding: 0 var(--gap-sm); } }

/* header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 13, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(42, 47, 74, 0.5);
  transition: var(--transition);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
}
.logo i { font-size: 26px; color: var(--primary); }
.logo span { background: linear-gradient(135deg, var(--primary), #f7c948); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.nav a:hover { color: var(--text-primary); background: rgba(232, 168, 62, 0.1); }
.nav a.active { color: var(--primary); background: rgba(232, 168, 62, 0.15); }
.nav a i { margin-right: 6px; font-size: 14px; }
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-cta .btn {
  padding: 8px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--bg-dark);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.header-cta .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,62,0.35); }
.menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; padding: 8px; }
@media (max-width: 768px) {
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: rgba(11,13,26,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px var(--gap-sm); border-bottom: 1px solid var(--border-color); gap: 4px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 20px; width: 100%; border-radius: var(--radius-sm); }
  .menu-toggle { display: block; }
  .header-cta .btn { padding: 8px 16px; font-size: 13px; }
  .logo { font-size: 18px; }
}

/* hero */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background: var(--bg-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.25;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(232,168,62,0.08) 0%, transparent 70%),
              linear-gradient(180deg, rgba(11,13,26,0.9) 0%, rgba(11,13,26,0.3) 50%, rgba(11,13,26,0.95) 100%);
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { max-width: 620px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 100px;
  background: rgba(232,168,62,0.12);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 20px;
  border: 1px solid rgba(232,168,62,0.2);
}
.hero-badge i { font-size: 14px; }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-actions .btn-primary {
  padding: 14px 36px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--bg-dark);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero-actions .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(232,168,62,0.4); }
.hero-actions .btn-outline {
  padding: 14px 36px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero-actions .btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(232,168,62,0.06); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.hero-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-visual img { width: 100%; max-width: 500px; border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid var(--border-color); }
.hero-visual .float-card {
  position: absolute;
  bottom: -10px;
  left: -10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.hero-visual .float-card .label { font-size: 12px; color: var(--text-muted); }
.hero-visual .float-card .value { font-size: 20px; font-weight: 700; color: var(--primary); }
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero p { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual img { max-width: 400px; }
}
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 16px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .hero-stat .num { font-size: 24px; }
  .hero-visual img { max-width: 100%; }
  .hero-visual .float-card { display: none; }
}

/* section通用 */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { font-size: 34px; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 12px; background: linear-gradient(135deg, #fff 30%, var(--primary) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-header p { font-size: 16px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; line-height: 1.7; }
.section-header .tag { display: inline-block; padding: 4px 14px; border-radius: 100px; background: rgba(232,168,62,0.1); color: var(--primary); font-size: 12px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 12px; border: 1px solid rgba(232,168,62,0.15); }

/* features板块 */
.features { background: var(--bg-card); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: rgba(11,13,26,0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}
.feature-card:hover { border-color: rgba(232,168,62,0.3); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.feature-card .icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(232,168,62,0.12); display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary); margin-bottom: 18px; }
.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; color: #fff; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr; gap: 16px; } }

/* categories板块 */
.categories { background: var(--bg-dark); }
.categories-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.category-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  align-items: center;
  padding: 28px 32px;
  gap: 24px;
}
.category-card:hover { border-color: rgba(232,168,62,0.3); transform: translateY(-3px); box-shadow: var(--shadow); }
.category-card .icon { flex-shrink: 0; width: 56px; height: 56px; border-radius: 14px; background: rgba(232,168,62,0.1); display: flex; align-items: center; justify-content: center; font-size: 24px; color: var(--primary); }
.category-card .info h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.category-card .info p { font-size: 13px; color: var(--text-muted); }
.category-card .arrow { margin-left: auto; color: var(--text-muted); font-size: 18px; transition: var(--transition); }
.category-card:hover .arrow { color: var(--primary); transform: translateX(4px); }
@media (max-width: 768px) { .categories-grid { grid-template-columns: 1fr; gap: 16px; } .category-card { padding: 20px 24px; } }

/* latest板块（CMS列表） */
.latest { background: var(--bg-card); }
.latest-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post-card {
  background: rgba(11,13,26,0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.post-card:hover { border-color: rgba(232,168,62,0.25); transform: translateY(-3px); box-shadow: var(--shadow); }
.post-card .thumb { width: 100%; height: 180px; object-fit: cover; background: var(--secondary-light); }
.post-card .body { padding: 20px 24px 24px; }
.post-card .cat { display: inline-block; padding: 2px 12px; border-radius: 100px; background: rgba(232,168,62,0.1); color: var(--primary); font-size: 12px; font-weight: 600; margin-bottom: 10px; border: 1px solid rgba(232,168,62,0.15); }
.post-card h3 { font-size: 17px; font-weight: 600; color: #fff; margin-bottom: 8px; line-height: 1.4; }
.post-card h3 a { color: #fff; }
.post-card h3 a:hover { color: var(--primary); }
.post-card .excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; }
.post-card .meta { display: flex; align-items: center; gap: 16px; font-size: 12px; color: var(--text-muted); }
.post-card .meta i { margin-right: 4px; }
.latest-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 16px;
  background: rgba(11,13,26,0.3);
  border-radius: var(--radius);
  border: 1px dashed var(--border-color);
}
.latest-empty i { font-size: 40px; display: block; margin-bottom: 16px; color: var(--text-muted); opacity: 0.5; }
@media (max-width: 768px) { .latest-grid { grid-template-columns: 1fr; gap: 16px; } .post-card .thumb { height: 140px; } }

/* data板块（数据/流程） */
.data-section { background: var(--bg-dark); }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.data-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.data-card:hover { border-color: rgba(232,168,62,0.25); transform: translateY(-3px); }
.data-card .num { font-size: 36px; font-weight: 800; color: var(--primary); line-height: 1.2; }
.data-card .num span { font-size: 18px; font-weight: 400; color: var(--text-muted); }
.data-card .label { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }
.data-card .desc { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
@media (max-width: 768px) { .data-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; } .data-card .num { font-size: 28px; } }

/* faq板块 */
.faq { background: var(--bg-card); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: rgba(11,13,26,0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item summary {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--primary); font-size: 14px; transition: var(--transition); }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item[open] summary { background: rgba(232,168,62,0.05); }
.faq-item .answer { padding: 0 24px 18px; color: var(--text-secondary); font-size: 15px; line-height: 1.7; }
@media (max-width: 768px) { .faq-item summary { padding: 14px 18px; font-size: 15px; } .faq-item .answer { padding: 0 18px 14px; } }

/* cta板块 */
.cta-section {
  background: var(--bg-dark);
  padding: 80px 0;
}
.cta-box {
  background: linear-gradient(135deg, rgba(232,168,62,0.08), rgba(26,31,54,0.8));
  border: 1px solid rgba(232,168,62,0.2);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(232,168,62,0.05) 0%, transparent 60%);
  pointer-events: none;
}
.cta-box h2 { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-box p { font-size: 16px; color: var(--text-secondary); max-width: 500px; margin: 0 auto 28px; line-height: 1.7; }
.cta-box .btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 40px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--bg-dark);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.cta-box .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(232,168,62,0.35); }
.cta-box .btn-cta i { font-size: 16px; }
@media (max-width: 768px) { .cta-box { padding: 36px 24px; } .cta-box h2 { font-size: 24px; } }

/* footer */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; max-width: 300px; }
.footer-col h4 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col a { display: block; font-size: 14px; color: var(--text-muted); padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-col a i { margin-right: 8px; font-size: 12px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } .footer-brand p { max-width: 100%; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 20px; } .footer-bottom { flex-direction: column; text-align: center; } }

/* 通用工具 */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.gap-16 { gap: 16px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
@media (max-width: 520px) { .section { padding: 48px 0; } .section-header h2 { font-size: 26px; } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
      --primary: #0f1f3d;
      --primary-light: #1a2f57;
      --primary-dark: #0a1528;
      --secondary: #e74c3c;
      --secondary-hover: #c0392b;
      --accent: #f0a830;
      --accent-hover: #d49220;
      --bg: #f5f7fa;
      --bg-white: #ffffff;
      --bg-dark: #0f1f3d;
      --text: #1a1a2e;
      --text-light: #5a6a7e;
      --text-white: #ffffff;
      --text-muted: #8a9aae;
      --border: #e0e5ec;
      --radius: 12px;
      --radius-sm: 8px;
      --radius-lg: 20px;
      --shadow: 0 8px 30px rgba(15, 31, 61, 0.10);
      --shadow-lg: 0 20px 50px rgba(15, 31, 61, 0.15);
      --shadow-hover: 0 14px 40px rgba(15, 31, 61, 0.18);
      --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
      --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      --max-width: 1200px;
      --nav-height: 72px;
    }

    /* ===== Reset / Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; transition: var(--transition); }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text); }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.15rem; }
    p { margin-bottom: 0.75rem; color: var(--text-light); }
    .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
    .section { padding: 80px 0; }
    .section-title { text-align: center; margin-bottom: 48px; }
    .section-title h2 { font-size: 2.2rem; margin-bottom: 12px; position: relative; display: inline-block; }
    .section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: var(--accent); border-radius: 4px; margin: 12px auto 0; }
    .section-title p { font-size: 1.1rem; max-width: 620px; margin: 12px auto 0; color: var(--text-light); }
    .text-center { text-align: center; }
    .text-accent { color: var(--accent); }
    .text-secondary { color: var(--secondary); }

    /* ===== 导航 ===== */
    .header {
      position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
      background: rgba(15, 31, 61, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255,255,255,0.06);
      height: var(--nav-height);
      transition: var(--transition);
    }
    .header .container {
      display: flex; align-items: center; justify-content: space-between;
      height: var(--nav-height);
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      font-size: 1.35rem; font-weight: 700; color: var(--text-white);
      letter-spacing: -0.3px;
    }
    .logo i { color: var(--accent); font-size: 1.5rem; }
    .logo span { background: linear-gradient(135deg, #ffffff, #e0e5ec); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .nav { display: flex; align-items: center; gap: 6px; }
    .nav a {
      display: flex; align-items: center; gap: 6px;
      padding: 10px 20px; border-radius: 50px;
      font-size: 0.95rem; font-weight: 500; color: rgba(255,255,255,0.75);
      transition: var(--transition); position: relative;
    }
    .nav a i { font-size: 0.9rem; }
    .nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
    .nav a.active {
      color: #fff; background: var(--secondary);
      box-shadow: 0 4px 16px rgba(231,76,60,0.35);
    }
    .nav a.active:hover { background: var(--secondary-hover); }
    .nav-toggle { display: none; background: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px 8px; border-radius: var(--radius-sm); }
    .nav-toggle:hover { background: rgba(255,255,255,0.08); }

    /* ===== Hero / Banner ===== */
    .page-banner {
      padding: 140px 0 80px;
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #162a50 100%);
      position: relative; overflow: hidden;
      min-height: 360px;
      display: flex; align-items: center;
    }
    .page-banner::before {
      content: ''; position: absolute; inset: 0;
      background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      opacity: 0.18; mix-blend-mode: overlay;
    }
    .page-banner::after {
      content: ''; position: absolute; inset: 0;
      background: radial-gradient(ellipse at 20% 50%, rgba(240,168,48,0.10) 0%, transparent 70%);
    }
    .page-banner .container { position: relative; z-index: 2; }
    .page-banner h1 { color: var(--text-white); font-size: 3rem; margin-bottom: 16px; }
    .page-banner h1 i { color: var(--accent); margin-right: 12px; }
    .page-banner p { color: rgba(255,255,255,0.75); font-size: 1.15rem; max-width: 640px; line-height: 1.7; }
    .page-banner .breadcrumb {
      display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
      margin-bottom: 20px; font-size: 0.9rem; color: rgba(255,255,255,0.55);
    }
    .page-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
    .page-banner .breadcrumb a:hover { color: var(--accent); }
    .page-banner .breadcrumb .sep { color: rgba(255,255,255,0.3); }

    /* ===== 概述板块 ===== */
    .intro-section { background: var(--bg-white); }
    .intro-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
    }
    .intro-text h2 { font-size: 2rem; margin-bottom: 20px; }
    .intro-text h2 i { color: var(--secondary); margin-right: 8px; }
    .intro-text p { font-size: 1.05rem; line-height: 1.8; margin-bottom: 16px; }
    .intro-text .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
    .intro-text .tags span {
      background: rgba(231,76,60,0.08); color: var(--secondary);
      padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 500;
    }
    .intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
    .intro-image img { width: 100%; height: 380px; object-fit: cover; transition: var(--transition); }
    .intro-image:hover img { transform: scale(1.03); }

    /* ===== 赛事类型卡片 ===== */
    .types-section { background: var(--bg); }
    .types-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
    }
    .type-card {
      background: var(--bg-white); border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow);
      transition: var(--transition); cursor: default;
    }
    .type-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
    .type-card .card-img { height: 200px; overflow: hidden; }
    .type-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .type-card:hover .card-img img { transform: scale(1.05); }
    .type-card .card-body { padding: 24px 20px; }
    .type-card .card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
    .type-card .card-body h3 i { color: var(--secondary); margin-right: 6px; font-size: 1rem; }
    .type-card .card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }
    .type-card .card-body .badge {
      display: inline-block; margin-top: 12px;
      background: rgba(240,168,48,0.12); color: var(--accent-hover);
      padding: 4px 14px; border-radius: 50px; font-size: 0.78rem; font-weight: 600;
    }

    /* ===== 热门赛事 ===== */
    .hot-section { background: var(--bg-white); }
    .hot-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
    }
    .hot-card {
      background: var(--bg); border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow);
      transition: var(--transition); display: flex; flex-direction: column;
    }
    .hot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .hot-card .hot-img { height: 180px; overflow: hidden; position: relative; }
    .hot-card .hot-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
    .hot-card:hover .hot-img img { transform: scale(1.04); }
    .hot-card .hot-tag {
      position: absolute; top: 12px; left: 12px;
      background: var(--secondary); color: #fff;
      padding: 4px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 600;
    }
    .hot-card .hot-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
    .hot-card .hot-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
    .hot-card .hot-body p { font-size: 0.9rem; color: var(--text-light); flex: 1; }
    .hot-card .hot-meta {
      display: flex; align-items: center; justify-content: space-between;
      margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border);
      font-size: 0.85rem; color: var(--text-muted);
    }
    .hot-card .hot-meta i { margin-right: 4px; }
    .hot-card .hot-meta .btn-small {
      background: var(--primary); color: #fff; padding: 6px 18px; border-radius: 50px;
      font-size: 0.8rem; font-weight: 600; cursor: pointer;
    }
    .hot-card .hot-meta .btn-small:hover { background: var(--primary-light); }

    /* ===== 流程步骤 ===== */
    .process-section {
      background: var(--bg-dark);
      position: relative; overflow: hidden;
    }
    .process-section::before {
      content: ''; position: absolute; inset: 0;
      background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
      opacity: 0.06;
    }
    .process-section .container { position: relative; z-index: 2; }
    .process-section .section-title h2 { color: var(--text-white); }
    .process-section .section-title h2::after { background: var(--accent); }
    .process-section .section-title p { color: rgba(255,255,255,0.6); }
    .process-steps {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
    }
    .process-step {
      background: rgba(255,255,255,0.06); backdrop-filter: blur(6px);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius); padding: 32px 24px; text-align: center;
      transition: var(--transition); position: relative;
    }
    .process-step:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
    .process-step .step-num {
      width: 48px; height: 48px; border-radius: 50%;
      background: var(--accent); color: var(--primary-dark);
      display: flex; align-items: center; justify-content: center;
      font-size: 1.3rem; font-weight: 800; margin: 0 auto 18px;
    }
    .process-step h4 { color: var(--text-white); font-size: 1.1rem; margin-bottom: 10px; }
    .process-step p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-bottom: 0; }

    /* ===== 数据统计 ===== */
    .stats-section { background: var(--bg); }
    .stats-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
    }
    .stat-card {
      background: var(--bg-white); border-radius: var(--radius);
      padding: 36px 24px; text-align: center;
      box-shadow: var(--shadow); transition: var(--transition);
    }
    .stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .stat-card .stat-icon { font-size: 2.2rem; color: var(--secondary); margin-bottom: 12px; }
    .stat-card .stat-num { font-size: 2.6rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
    .stat-card .stat-num span { color: var(--accent); }
    .stat-card .stat-label { font-size: 0.95rem; color: var(--text-light); margin-top: 6px; }

    /* ===== FAQ ===== */
    .faq-section { background: var(--bg-white); }
    .faq-list { max-width: 800px; margin: 0 auto; }
    .faq-item {
      border-bottom: 1px solid var(--border); padding: 20px 0;
      cursor: pointer; transition: var(--transition);
    }
    .faq-item:first-child { border-top: 1px solid var(--border); }
    .faq-item .faq-q {
      display: flex; align-items: center; justify-content: space-between;
      font-weight: 600; font-size: 1.05rem; color: var(--text);
    }
    .faq-item .faq-q i { color: var(--secondary); transition: var(--transition); font-size: 0.9rem; }
    .faq-item.open .faq-q i { transform: rotate(180deg); }
    .faq-item .faq-a {
      max-height: 0; overflow: hidden;
      transition: max-height 0.40s ease, padding 0.30s ease;
      color: var(--text-light); font-size: 0.95rem; line-height: 1.7;
    }
    .faq-item.open .faq-a { max-height: 300px; padding-top: 14px; }

    /* ===== CTA ===== */
    .cta-section {
      background: linear-gradient(135deg, var(--primary) 0%, #162a50 100%);
      padding: 72px 0; text-align: center; position: relative; overflow: hidden;
    }
    .cta-section::before {
      content: ''; position: absolute; inset: 0;
      background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
      opacity: 0.08;
    }
    .cta-section .container { position: relative; z-index: 2; }
    .cta-section h2 { color: var(--text-white); font-size: 2rem; margin-bottom: 16px; }
    .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 560px; margin: 0 auto 32px; }
    .cta-btn {
      display: inline-flex; align-items: center; gap: 10px;
      background: var(--accent); color: var(--primary-dark);
      padding: 16px 40px; border-radius: 50px; font-size: 1.05rem; font-weight: 700;
      transition: var(--transition); cursor: pointer; border: none;
    }
    .cta-btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(240,168,48,0.35); }
    .cta-btn i { font-size: 1rem; }

    /* ===== 页脚（沿用首页片段） ===== */
    .footer {
      background: var(--primary-dark); color: rgba(255,255,255,0.75);
      padding: 60px 0 30px;
    }
    .footer .footer-grid {
      display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
      margin-bottom: 40px;
    }
    .footer .logo { font-size: 1.3rem; margin-bottom: 16px; }
    .footer .logo span { background: linear-gradient(135deg, #ffffff, #c0c8d8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .footer-brand p { color: rgba(255,255,255,0.55); font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
    .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; font-weight: 600; }
    .footer-col a {
      display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem;
      padding: 5px 0; transition: var(--transition);
    }
    .footer-col a i { font-size: 0.65rem; margin-right: 8px; color: var(--accent); }
    .footer-col a:hover { color: var(--accent); padding-left: 4px; }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 24px; display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.4);
    }
    .footer-bottom a { color: var(--accent); }
    .footer-bottom a:hover { text-decoration: underline; }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .types-grid { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .footer .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav a { padding: 8px 14px; font-size: 0.85rem; }
      .nav a span { display: none; }
      .nav a i { font-size: 1.1rem; }
      .page-banner { padding: 120px 0 60px; min-height: 280px; }
      .page-banner h1 { font-size: 2rem; }
      .page-banner p { font-size: 1rem; }
      .intro-grid { grid-template-columns: 1fr; gap: 32px; }
      .intro-image img { height: 260px; }
      .hot-grid { grid-template-columns: 1fr; }
      .types-grid { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; }
      .section { padding: 56px 0; }
      .section-title h2 { font-size: 1.6rem; }
      .footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }
    @media (max-width: 520px) {
      .nav { gap: 4px; }
      .nav a { padding: 6px 10px; font-size: 0.78rem; }
      .nav a i { font-size: 0.9rem; }
      .logo { font-size: 1.05rem; gap: 6px; }
      .logo i { font-size: 1.2rem; }
      .page-banner h1 { font-size: 1.5rem; }
      .page-banner h1 i { display: none; }
      .stats-grid { grid-template-columns: 1fr; }
      .process-step { padding: 24px 16px; }
      .cta-section h2 { font-size: 1.4rem; }
      .cta-btn { padding: 14px 28px; font-size: 0.95rem; }
    }

    /* ===== 辅助动画 ===== */
    @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
    .anim-fade-up { animation: fadeUp 0.6s ease forwards; }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    .delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #1a56db;
  --primary-dark: #0f3a9e;
  --primary-light: #3b7af7;
  --primary-gradient: linear-gradient(135deg, #1a56db 0%, #0f3a9e 100%);
  --secondary: #f59e0b;
  --secondary-light: #fbbf24;
  --accent: #10b981;
  --accent-dark: #059669;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --dark-3: #334155;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
  --shadow-primary: 0 8px 30px rgba(26,86,219,0.25);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}
/* ===== 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-primary);
  background: var(--bg-white);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 1rem; outline: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
/* ===== Container ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
}
/* ===== Header & Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo i { font-size: 1.5rem; color: var(--secondary); }
.logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav a i { font-size: 0.85rem; }
.nav a:hover { color: var(--primary); background: var(--gray-100); }
.nav a.active {
  color: var(--primary);
  background: rgba(26,86,219,0.08);
  font-weight: 600;
}
.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: 3px 3px 0 0;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--primary-gradient);
  color: var(--text-white) !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: var(--shadow-primary);
  transition: var(--transition);
  margin-left: 8px;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(26,86,219,0.35); color: #fff !important; background: linear-gradient(135deg, #0f3a9e 0%, #1a56db 100%); }
.mobile-toggle { display: none; font-size: 1.5rem; color: var(--text-primary); padding: 8px; cursor: pointer; background: none; border: none; }
@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav a { width: 100%; padding: 12px 16px; font-size: 1rem; }
  .nav a.active::after { display: none; }
  .nav a.active { background: rgba(26,86,219,0.08); border-radius: var(--radius-sm); }
  .nav-cta { margin-left: 0; margin-top: 8px; justify-content: center; }
}
/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 120px 0 60px;
  background: var(--bg-dark);
  overflow: hidden;
  min-height: 280px;
  display: flex;
  align-items: center;
}
.page-banner-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.2;
  mix-blend-mode: overlay;
}
.page-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.7) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-bottom: 16px;
}
.page-banner-breadcrumb a { color: var(--gray-400); }
.page-banner-breadcrumb a:hover { color: var(--secondary); }
.page-banner-breadcrumb .sep { color: var(--gray-500); }
.page-banner h1 {
  font-size: 2.4rem;
  color: var(--text-white);
  max-width: 800px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.page-banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 18px;
  color: var(--gray-300);
  font-size: 0.9rem;
}
.page-banner-meta span { display: flex; align-items: center; gap: 6px; }
.page-banner-meta i { color: var(--secondary); width: 16px; }
@media (max-width: 768px) {
  .page-banner { padding: 100px 0 40px; min-height: 220px; }
  .page-banner h1 { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .page-banner h1 { font-size: 1.3rem; }
  .page-banner-meta { font-size: 0.8rem; gap: 10px; }
}
/* ===== Article Content ===== */
.article-section {
  padding: 60px 0 80px;
  background: var(--bg-white);
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}
.article-body {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.article-body .content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-primary);
}
.article-body .content p { margin-bottom: 1.2em; }
.article-body .content h2 {
  font-size: 1.5rem;
  margin-top: 2em;
  margin-bottom: 0.6em;
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--border);
  color: var(--dark);
}
.article-body .content h3 {
  font-size: 1.2rem;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--dark-2);
}
.article-body .content ul, .article-body .content ol {
  margin: 1em 0;
  padding-left: 1.5em;
}
.article-body .content ul { list-style: disc; }
.article-body .content ol { list-style: decimal; }
.article-body .content li { margin-bottom: 0.4em; }
.article-body .content a { color: var(--primary); text-decoration: underline; }
.article-body .content a:hover { color: var(--primary-dark); }
.article-body .content blockquote {
  margin: 1.5em 0;
  padding: 16px 24px;
  border-left: 4px solid var(--primary);
  background: var(--bg-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-body .content img {
  border-radius: var(--radius-md);
  margin: 1.5em auto;
  box-shadow: var(--shadow-md);
  max-width: 100%;
}
.article-body .content code {
  background: var(--gray-100);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--primary-dark);
}
/* ===== Sidebar ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.sidebar-card {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}
.sidebar-card h3 {
  font-size: 1.05rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dark);
}
.sidebar-card h3 i { color: var(--primary); }
.sidebar-list { display: flex; flex-direction: column; gap: 12px; }
.sidebar-list a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.sidebar-list a:hover {
  background: var(--bg-white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.sidebar-list a i { color: var(--secondary); font-size: 0.8rem; margin-top: 3px; flex-shrink: 0; }
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sidebar-tags a {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.sidebar-tags a:hover {
  background: var(--primary);
  color: var(--text-white);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.sidebar-cta {
  background: var(--primary-gradient);
  border: none;
  color: var(--text-white);
  text-align: center;
}
.sidebar-cta h3 { color: var(--text-white); border-color: rgba(255,255,255,0.2); }
.sidebar-cta h3 i { color: var(--secondary); }
.sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.9rem; margin-bottom: 16px; }
.sidebar-cta .btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--text-white);
  color: var(--primary) !important;
  padding: 10px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}
.sidebar-cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr 280px; gap: 32px; }
}
@media (max-width: 768px) {
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .article-sidebar { order: -1; }
}
/* ===== Not Found ===== */
.not-found-box {
  text-align: center;
  padding: 60px 20px;
}
.not-found-box i { font-size: 4rem; color: var(--gray-300); margin-bottom: 20px; }
.not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; color: var(--dark); }
.not-found-box p { color: var(--text-secondary); margin-bottom: 24px; font-size: 1.05rem; }
.not-found-box .btn-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--primary-gradient);
  color: var(--text-white) !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  box-shadow: var(--shadow-primary);
  transition: var(--transition);
}
.not-found-box .btn-home:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(26,86,219,0.35); }
/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: var(--gray-300);
  padding: 60px 0 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .logo { color: var(--text-white); margin-bottom: 16px; }
.footer-brand .logo span { -webkit-text-fill-color: #fff; background: none; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; color: var(--gray-400); max-width: 360px; }
.footer-col h4 { font-size: 1rem; font-weight: 600; color: var(--text-white); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gray-400);
  font-size: 0.9rem;
  padding: 5px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--secondary); padding-left: 4px; }
.footer-col a i { font-size: 0.65rem; color: var(--primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 0.85rem;
  color: var(--gray-500);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a { color: var(--gray-400); }
.footer-bottom a:hover { color: var(--secondary); }
@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; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }
/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
/* ===== Back to Top ===== */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  transform: translateY(20px);
}
.back-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
/* ===== Breadcrumb fix ===== */
.breadcrumb-link { color: var(--gray-400) !important; }
.breadcrumb-link:hover { color: var(--secondary) !important; }