/* roulang page: index */
:root {
  --primary: #7c5cff;
  --primary-light: #9d7fff;
  --primary-dark: #5b3fd6;
  --accent: #00d4ff;
  --accent-warm: #ffb86b;
  --bg-deep: #060816;
  --bg-body: #0a0e1f;
  --bg-card: #0f162e;
  --bg-card-hover: #141c3a;
  --bg-glass: rgba(10, 14, 31, 0.72);
  --bg-glass-strong: rgba(10, 14, 31, 0.92);
  --text-main: #e8eaf4;
  --text-body: #b6bdd4;
  --text-weak: #7c84a6;
  --border: rgba(124, 92, 255, 0.16);
  --border-light: rgba(255, 255, 255, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 18px 50px rgba(124, 92, 255, 0.18);
  --shadow-glow: 0 0 60px rgba(0, 212, 255, 0.15);
  --container-w: 1200px;
  --space-section: 110px;
  --font-head: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease, opacity .25s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; background: none; border: none; outline: none; }

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 28px; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: transparent;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: var(--bg-glass-strong);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,.35);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  white-space: nowrap;
}
.logo i {
  color: var(--accent);
  font-size: 24px;
  filter: drop-shadow(0 0 8px rgba(0,212,255,.7));
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  transition: background .25s, color .25s;
}
.nav-links a i { font-size: 14px; opacity: .8; }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,.06); }
.nav-links a.active { color: #fff; background: rgba(124,92,255,.18); box-shadow: inset 0 0 0 1px rgba(124,92,255,.25); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 20px rgba(124,92,255,.3);
  transition: transform .25s, box-shadow .25s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(124,92,255,.45); color: #fff; }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 6px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  background: 
    linear-gradient(180deg, rgba(6,8,22,.82) 0%, rgba(6,8,22,.55) 45%, var(--bg-body) 100%),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  overflow: hidden;
  padding: 140px 0 100px;
}
.hero::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(124,92,255,.18), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(0,212,255,.12), transparent 40%);
  pointer-events: none;
}
.stars {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(1px 1px at 25px 35px, #fff, transparent),
    radial-gradient(1px 1px at 150px 120px, rgba(255,255,255,.8), transparent),
    radial-gradient(1.5px 1.5px at 300px 80px, #fff, transparent),
    radial-gradient(1px 1px at 460px 180px, rgba(255,255,255,.6), transparent),
    radial-gradient(1px 1px at 580px 60px, #fff, transparent),
    radial-gradient(1.5px 1.5px at 700px 200px, rgba(255,255,255,.7), transparent),
    radial-gradient(1px 1px at 820px 90px, #fff, transparent),
    radial-gradient(1px 1px at 940px 160px, rgba(255,255,255,.5), transparent);
  background-size: 1000px 100%;
  animation: twinkle 6s ease-in-out infinite alternate;
  opacity: .6;
  pointer-events: none;
}
@keyframes twinkle {
  0% { opacity: .35; }
  100% { opacity: .8; }
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 800px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(124,92,255,.14);
  border: 1px solid rgba(124,92,255,.3);
  border-radius: 999px;
  padding: 6px 18px;
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge i { color: var(--accent); }
.hero h1 {
  font-size: 54px;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 2px;
  margin-bottom: 20px;
  background: linear-gradient(120deg, #fff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-body);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 24px rgba(124,92,255,.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(124,92,255,.5); color: #fff; }
.btn-ghost {
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.12);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.25); transform: translateY(-3px); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #00a8cc);
  color: #06121a;
  box-shadow: 0 6px 24px rgba(0,212,255,.3);
}
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(0,212,255,.45); color: #06121a; }
.hero-scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.4);
  font-size: 18px;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}

/* ===== Section common ===== */
.section { padding: var(--space-section) 0; position: relative; }
.section-alt { background: rgba(255,255,255,.015); border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 48px; gap: 24px; flex-wrap: wrap;
}
.section-title-wrap { max-width: 640px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title { font-size: 34px; font-weight: 800; line-height: 1.3; letter-spacing: .5px; }
.section-sub { color: var(--text-body); margin-top: 12px; font-size: 15px; line-height: 1.8; }
.section-link { color: var(--primary-light); font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.section-link:hover { color: var(--accent); }

/* ===== Features ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: linear-gradient(160deg, rgba(15,22,46,.9), rgba(10,14,31,.9));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(124,92,255,.25); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(124,92,255,.12);
  color: var(--primary-light);
  font-size: 24px;
  margin-bottom: 22px;
}
.feature-card:nth-child(2) .feature-icon { background: rgba(0,212,255,.1); color: var(--accent); }
.feature-card:nth-child(3) .feature-icon { background: rgba(255,184,107,.1); color: var(--accent-warm); }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-body); font-size: 14px; line-height: 1.7; }

/* ===== Categories ===== */
.cate-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cate-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-light);
  background: var(--bg-card);
  transition: transform .3s, box-shadow .3s;
}
.cate-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.cate-img { height: 210px; overflow: hidden; position: relative; }
.cate-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.cate-card:hover .cate-img img { transform: scale(1.06); }
.cate-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(6,8,22,.9) 100%); }
.cate-body { padding: 26px 26px 30px; position: relative; margin-top: -20px; z-index: 2; }
.cate-badge {
  display: inline-block;
  background: rgba(124,92,255,.2);
  border: 1px solid rgba(124,92,255,.3);
  color: var(--primary-light);
  font-size: 12px; font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.cate-card:nth-child(2) .cate-badge { background: rgba(0,212,255,.12); border-color: rgba(0,212,255,.3); color: var(--accent); }
.cate-card:nth-child(3) .cate-badge { background: rgba(255,184,107,.12); border-color: rgba(255,184,107,.3); color: var(--accent-warm); }
.cate-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.cate-body p { color: var(--text-body); font-size: 14px; line-height: 1.75; margin-bottom: 18px; }
.cate-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--accent);
}
.cate-link:hover { gap: 12px; color: #fff; }

/* ===== Content List ===== */
.news-wrapper { display: grid; grid-template-columns: 1.3fr 1fr; gap: 36px; align-items: start; }
.news-main-card {
  background: linear-gradient(140deg, rgba(124,92,255,.1), rgba(10,14,31,.8));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: transform .3s, box-shadow .3s;
}
.news-main-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-item {
  display: flex; gap: 18px; align-items: center;
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid transparent;
  transition: background .25s, border-color .25s, padding-left .25s;
}
.news-item:hover { background: rgba(15,22,46,.8); border-color: var(--border-light); padding-left: 30px; }
.news-cat {
  flex-shrink: 0;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(124,92,255,.12);
  border: 1px solid rgba(124,92,255,.2);
  color: var(--primary-light);
  white-space: nowrap;
}
.news-info { flex: 1; min-width: 0; }
.news-title {
  font-size: 15px; font-weight: 600;
  color: var(--text-main);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.news-title:hover { color: var(--accent); }
.news-meta { font-size: 12px; color: var(--text-weak); margin-top: 4px; display: flex; gap: 12px; }
.empty-tip { text-align: center; color: var(--text-weak); padding: 40px; font-size: 15px; background: rgba(255,255,255,.02); border-radius: var(--radius-md); }

/* ===== Stats ===== */
.stats-wrap {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  background: linear-gradient(135deg, rgba(124,92,255,.08), rgba(0,212,255,.05));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
}
.stat-item { text-align: center; }
.stat-num { font-size: 42px; font-weight: 900; background: linear-gradient(135deg, #fff, var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { color: var(--text-body); font-size: 14px; margin-top: 6px; letter-spacing: 1px; }

/* ===== Process ===== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { text-align: center; padding: 32px 20px; position: relative; }
.process-step::after {
  content: '';
  position: absolute; top: 64px; right: -16px;
  width: 30px; height: 2px;
  background: linear-gradient(90deg, rgba(124,92,255,.5), transparent);
}
.process-step:last-child::after { display: none; }
.step-num {
  width: 52px; height: 52px;
  margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(124,92,255,.14);
  color: var(--primary-light);
  font-size: 20px; font-weight: 700;
  border: 1px dashed rgba(124,92,255,.4);
}
.process-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.process-step p { color: var(--text-body); font-size: 13px; line-height: 1.7; }

/* ===== Featured / Ranking ===== */
.rank-wrap { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-items: stretch; }
.rank-img-card { border-radius: var(--radius-lg); overflow: hidden; position: relative; border: 1px solid var(--border-light); min-height: 340px; }
.rank-img-card img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.rank-img-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 35%, rgba(6,8,22,.95) 100%); }
.rank-img-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 30px; z-index: 2; }
.rank-img-content h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.rank-img-content p { color: var(--text-body); font-size: 13px; }
.rank-list { display: flex; flex-direction: column; gap: 12px; }
.rank-item {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px;
  background: rgba(15,22,46,.6);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: background .25s, transform .25s;
}
.rank-item:hover { background: rgba(20,28,58,.8); transform: translateX(4px); }
.rank-index { font-size: 22px; font-weight: 900; color: rgba(124,92,255,.5); min-width: 34px; font-style: italic; }
.rank-item:first-child .rank-index { color: var(--accent); }
.rank-item:nth-child(2) .rank-index { color: var(--primary-light); }
.rank-item:nth-child(3) .rank-index { color: var(--accent-warm); }
.rank-item-body { flex: 1; }
.rank-item-body h4 { font-size: 15px; font-weight: 600; }
.rank-item-body .rank-meta { font-size: 12px; color: var(--text-weak); margin-top: 4px; display: flex; gap: 14px; }
.rank-tag { font-size: 12px; color: var(--accent); background: rgba(0,212,255,.1); padding: 2px 10px; border-radius: 999px; white-space: nowrap; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  background: rgba(15,22,46,.5);
  overflow: hidden;
  transition: border-color .3s;
}
.faq-item.open { border-color: rgba(124,92,255,.35); }
.faq-q {
  width: 100%;
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 22px;
  font-size: 15px; font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
}
.faq-q i { color: var(--primary-light); transition: transform .35s ease; font-size: 14px; }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--accent); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .45s ease, padding .3s;
  padding: 0 22px;
  color: var(--text-body);
  font-size: 14px; line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 22px 22px; }

/* ===== CTA ===== */
.cta-section {
  background:
    linear-gradient(135deg, rgba(124,92,255,.2), rgba(0,212,255,.1)),
    url('/assets/images/backpic/back-2.png') center / cover;
  border-radius: var(--radius-lg);
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(6,8,22,.55);
  backdrop-filter: blur(4px);
}
.cta-inner { position: relative; z-index: 2; max-width: 560px; margin: 0 auto; }
.cta-inner h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; letter-spacing: 1px; }
.cta-inner p { color: var(--text-body); font-size: 15px; margin-bottom: 28px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-light);
  padding: 65px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 45px; }
.footer-about .logo { font-size: 20px; margin-bottom: 16px; }
.footer-about p { color: var(--text-weak); font-size: 14px; line-height: 1.8; max-width: 300px; }
.footer-col h4 { font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: .5px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--text-weak); font-size: 14px; }
.footer-col ul a:hover { color: var(--accent); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact span { color: var(--text-weak); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--primary-light); width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  color: var(--text-weak); font-size: 13px;
}
.footer-bottom a { color: var(--text-weak); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: rgba(124,92,255,.35); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(124,92,255,.55); }

/* ===== Focus ===== */
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .cate-grid { grid-template-columns: repeat(2, 1fr); }
  .news-wrapper { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .stats-wrap { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .rank-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 44px; }
  .section { --space-section: 80px; padding: var(--space-section) 0; }
  .process-step::after { display: none; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 16px 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-130%);
    transition: transform .35s ease;
    z-index: 999;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 20px; border-radius: 10px; justify-content: space-between; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .hero { min-height: 90vh; padding: 120px 0 80px; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .section-title { font-size: 27px; }
  .features-grid { grid-template-columns: 1fr; }
  .cate-grid { grid-template-columns: 1fr; }
  .faq-q { font-size: 14px; }
  .cta-section { padding: 50px 30px; }
  .cta-inner h2 { font-size: 25px; }
  .stats-wrap { padding: 36px 20px; }
  .stat-num { font-size: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .nav-wrap { height: 64px; }
  .logo { font-size: 18px; }
  .hero h1 { font-size: 28px; letter-spacing: 1px; }
  .hero-actions .btn { padding: 12px 22px; font-size: 14px; width: 100%; }
  .btn { width: 100%; }
  .process-grid { grid-template-columns: 1fr; }
  .rank-item { flex-wrap: wrap; }
  .stats-wrap { grid-template-columns: 1fr; gap: 28px; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 10px; }
  .news-title { white-space: normal; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --bg: #061120;
  --bg-deep: #030b16;
  --bg-soft: #0a1728;
  --card: rgba(16, 30, 50, 0.78);
  --card-solid: #101e33;
  --primary: #f0b84a;
  --primary-light: #ffd98a;
  --accent: #55bde8;
  --text: #d7e2ef;
  --text-muted: #8fa5bb;
  --text-dim: #62809d;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
  --gap: clamp(20px, 4vw, 44px);
  --header-h: 76px;
  --transition: all 0.3s cubic-bezier(0.2, 0.7, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  background-image: radial-gradient(ellipse at 20% 0%, rgba(64, 130, 200, 0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 20%, rgba(240, 184, 74, 0.05) 0%, transparent 45%);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button,
input {
  font: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

::selection {
  background: rgba(240, 184, 74, 0.3);
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(240, 184, 74, 0.10);
  border: 1px solid rgba(240, 184, 74, 0.25);
  color: var(--primary-light);
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 15px;
  font-weight: 500;
}

.section-title {
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
}

.section-title span {
  color: var(--primary);
}

.section-sub {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 16px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 999;
  background: rgba(6, 17, 32, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(5, 12, 24, 0.92);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  border-bottom-color: rgba(255, 255, 255, 0.10);
}

.nav-wrap {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.logo i {
  color: var(--primary);
  font-size: 22px;
  filter: drop-shadow(0 0 10px rgba(240, 184, 74, 0.5));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 100px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a i {
  font-size: 14px;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
  color: var(--primary-light);
  background: rgba(240, 184, 74, 0.12);
  border: 1px solid rgba(240, 184, 74, 0.2);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  color: #0b1220;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 100px;
  transition: var(--transition);
  box-shadow: 0 4px 18px rgba(240, 184, 74, 0.30);
  white-space: nowrap;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(240, 184, 74, 0.42);
  color: #0b1220;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
}

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

/* ===== 页头横幅 ===== */
.page-hero {
  position: relative;
  padding: 170px 0 100px;
  background-image: linear-gradient(180deg, rgba(3, 11, 22, 0.76) 0%, rgba(6, 17, 32, 0.92) 100%), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center 30%;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 160px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 26px;
}

.hero-breadcrumb a {
  color: var(--text-muted);
  transition: var(--transition);
}

.hero-breadcrumb a:hover {
  color: var(--primary-light);
}

.hero-breadcrumb i {
  font-size: 10px;
  color: var(--text-dim);
}

.hero-inner {
  max-width: 820px;
  position: relative;
  z-index: 2;
}

.hero-inner h1 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.18;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-inner h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: #c3d3e4;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 7px 15px;
  border-radius: 100px;
}

.hero-tags i {
  color: var(--primary);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 100px;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  color: #0b1220;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 6px 22px rgba(240, 184, 74, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(240, 184, 74, 0.45);
}

.btn-ghost {
  color: #d7e2ef;
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 44px;
  margin-top: 56px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-num {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
}

.stat-num i {
  color: var(--primary);
  font-size: 22px;
  margin-right: 4px;
  font-style: normal;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 概览区块 ===== */
.overview-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.overview-copy h2 {
  font-size: clamp(26px, 3.2vw, 36px);
  color: #fff;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 18px;
}

.overview-copy p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

.overview-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 12px;
}

.overview-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.overview-list li:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-strong);
  transform: translateX(4px);
}

.overview-list i {
  color: var(--primary);
  font-size: 18px;
  margin-top: 4px;
  flex-shrink: 0;
}

.overview-list strong {
  color: #e6edf5;
  font-weight: 600;
}

.overview-list span {
  color: var(--text-muted);
  font-size: 15px;
}

.overview-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.overview-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.overview-media:hover img {
  transform: scale(1.03);
}

.overview-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, transparent 50%, rgba(4, 12, 25, 0.65));
}

.overview-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 20, 34, 0.85);
  backdrop-filter: blur(10px);
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary-light);
  border: 1px solid rgba(240, 184, 74, 0.25);
}

/* ===== 核心模块 ===== */
.module-section {
  background: var(--bg-soft);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.module-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.module-card:hover {
  transform: translateY(-8px);
  border-color: rgba(240, 184, 74, 0.25);
  box-shadow: var(--shadow-lg);
}

.module-media {
  height: 210px;
  overflow: hidden;
  position: relative;
}

.module-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.module-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6, 17, 32, 0.55));
}

.module-body {
  padding: 26px 26px 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.module-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: rgba(240, 184, 74, 0.12);
  border: 1px solid rgba(240, 184, 74, 0.25);
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 18px;
}

.module-card h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.module-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  flex: 1;
}

.module-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  margin-top: 20px;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.module-link:hover {
  gap: 12px;
  border-bottom-color: rgba(240, 184, 74, 0.4);
}

/* ===== 观测流程 ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  position: relative;
  transition: var(--transition);
}

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

.step-num {
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(140deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 18px;
  display: block;
}

.step-card h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ===== 精选内容 ===== */
.articles-section {
  background: var(--bg-soft);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.content-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.content-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(85, 189, 232, 0.25);
}

.content-thumb {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.content-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.content-card:hover .content-thumb img {
  transform: scale(1.06);
}

.content-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(6, 17, 32, 0.45));
}

.content-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(6, 17, 32, 0.85);
  backdrop-filter: blur(6px);
  color: var(--primary-light);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid rgba(240, 184, 74, 0.2);
}

.content-body {
  padding: 22px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.content-meta i {
  margin-right: 4px;
  color: var(--accent);
}

.content-card h3 {
  font-size: 18px;
  color: #fff;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 10px;
  transition: var(--transition);
}

.content-card:hover h3 {
  color: var(--primary-light);
}

.content-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  flex: 1;
}

.content-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}

.content-cta:hover {
  gap: 12px;
  color: var(--primary-light);
}

/* ===== 热门目标 ===== */
.targets-section {
  background-image: linear-gradient(180deg, var(--bg-soft), var(--bg));
}

.targets-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: stretch;
}

.target-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 280px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.target-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.target-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.target-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 12, 24, 0.1) 30%, rgba(4, 12, 24, 0.85) 100%);
}

.target-card-content {
  position: relative;
  z-index: 2;
  padding: 28px;
  width: 100%;
}

.target-card-content h3 {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.target-card-content p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  line-height: 1.6;
}

.target-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.target-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 20px 22px;
  transition: var(--transition);
}

.target-item:hover {
  border-color: rgba(240, 184, 74, 0.25);
  transform: translateY(-4px);
  background: rgba(16, 30, 50, 0.95);
}

.target-rank {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(240, 184, 74, 0.1);
  border: 1px solid rgba(240, 184, 74, 0.2);
  padding: 3px 10px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 12px;
}

.target-item h4 {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.target-item p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-soft);
}

.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

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

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: #e6edf5;
  cursor: pointer;
  transition: var(--transition);
}

.faq-q i {
  color: var(--primary);
  font-size: 15px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-q i {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-a-inner {
  padding: 0 28px 22px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 100px 0;
  background-image: linear-gradient(180deg, rgba(6, 17, 32, 0.85), rgba(6, 17, 32, 0.95)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}

.cta-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(28px, 4vw, 42px);
  color: #fff;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-inner h2 span {
  color: var(--primary);
}

.cta-inner p {
  color: var(--text-muted);
  font-size: 17px;
  margin-bottom: 34px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.cta-note {
  margin-top: 22px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 66px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 46px;
}

.footer-about .logo {
  margin-bottom: 18px;
}

.footer-about p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin-top: 14px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul li a:hover {
  color: var(--primary-light);
  padding-left: 5px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact span {
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--primary);
  font-size: 13px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-dim);
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .module-grid,
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .targets-wrap {
    grid-template-columns: 1fr;
  }

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

  .overview-media img {
    height: 360px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: rgba(5, 12, 24, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 5%;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
  }

  .nav-cta {
    display: none;
  }

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

  .page-hero {
    padding: 140px 0 80px;
  }

  .module-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 64px 0;
  }

  .hero-stats {
    gap: 24px;
  }

  .target-list {
    grid-template-columns: 1fr;
  }

  .faq-q {
    padding: 18px 20px;
    font-size: 15px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 520px) {
  .logo {
    font-size: 17px;
  }

  .logo i {
    font-size: 18px;
  }

  .hero-inner h1 {
    font-size: 30px;
  }

  .hero-desc {
    font-size: 16px;
  }

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

  .overview-media img {
    height: 280px;
  }

  .module-media {
    height: 180px;
  }
}

/* roulang page: article */
:root {
            --bg-deep: #060912;
            --bg-dark: #0b1120;
            --bg-card: #111a2e;
            --bg-glass: rgba(17, 26, 46, 0.72);
            --bg-mist: rgba(255, 255, 255, 0.045);
            --border-glow: rgba(120, 160, 255, 0.16);
            --accent: #6ea8ff;
            --accent-deep: #3672e0;
            --violet: #9b7dff;
            --gold: #ffd27a;
            --text-main: #edf2fb;
            --text-secondary: #9fb0cc;
            --text-muted: #67748e;
            --radius: 14px;
            --radius-lg: 24px;
            --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 40px rgba(110, 168, 255, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-main);
            background: radial-gradient(ellipse at 50% -10%, #151f38 0%, var(--bg-deep) 55%) fixed;
            color: var(--text-main);
            line-height: 1.75;
            min-height: 100vh;
            overflow-x: hidden;
        }
        body.menu-open {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #8ab8ff;
        }
        ul,
        ol {
            padding-left: 1.4em;
        }
        button,
        input {
            font-family: inherit;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 28px;
        }
        .skip-link {
            position: fixed;
            top: -60px;
            left: 20px;
            background: var(--accent);
            color: #fff;
            z-index: 999;
            padding: 10px 20px;
            border-radius: 0 0 10px 10px;
            font-size: 14px;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 0;
            color: #fff;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(6, 9, 18, 0.62);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.055);
            transition: background 0.3s, box-shadow 0.3s, border-color 0.3s;
        }
        .site-header.scrolled {
            background: rgba(6, 9, 18, 0.92);
            border-bottom-color: rgba(255, 255, 255, 0.08);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-main);
            white-space: nowrap;
        }
        .logo i {
            color: var(--accent);
            font-size: 24px;
            filter: drop-shadow(0 0 12px rgba(110, 168, 255, 0.55));
        }
        .logo:hover {
            color: #fff;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .nav-links a i {
            font-size: 14px;
            opacity: 0.85;
        }
        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.05);
        }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.18), rgba(155, 125, 255, 0.14));
            border-color: rgba(110, 168, 255, 0.3);
            box-shadow: 0 0 24px rgba(110, 168, 255, 0.1);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--accent), var(--violet));
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 20px rgba(110, 168, 255, 0.35);
            white-space: nowrap;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .nav-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(110, 168, 255, 0.45);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            align-items: center;
            justify-content: center;
            font-size: 17px;
            transition: var(--transition);
        }
        .nav-toggle.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .article-hero {
            position: relative;
            padding: 168px 0 80px;
            background-image: linear-gradient(135deg, rgba(6, 9, 18, 0.94) 0%, rgba(10, 14, 30, 0.78) 50%, rgba(6, 9, 18, 0.88) 100%), url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center 30%;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            overflow: hidden;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(110, 168, 255, 0.16) 0%, transparent 70%);
            border-radius: 50%;
            top: -160px;
            right: -80px;
            pointer-events: none;
        }
        .article-hero::after {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(155, 125, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            bottom: -90px;
            left: 12%;
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            font-size: 10px;
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--accent);
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.16), rgba(155, 125, 255, 0.14));
            border: 1px solid rgba(110, 168, 255, 0.28);
            color: #aad0ff;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }
        .hero-badge i {
            font-size: 12px;
        }
        .article-title {
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.3px;
            color: #fff;
            max-width: 860px;
            margin-bottom: 18px;
            text-shadow: 0 2px 24px rgba(0, 0, 0, 0.3);
        }
        .article-lead {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-meta i {
            color: var(--accent);
            font-size: 13px;
        }
        .hero-meta .meta-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
        }
        .main-content {
            padding: 64px 0 20px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-glass);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(6px);
            font-size: 16px;
            line-height: 1.9;
            color: #c7d2e4;
            word-break: break-word;
        }
        .article-body>*+* {
            margin-top: 1.35em;
        }
        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            border-left: 4px solid var(--accent);
            padding-left: 18px;
            margin-top: 1.8em;
            line-height: 1.4;
            border-radius: 2px;
        }
        .article-body h3 {
            font-size: 21px;
            font-weight: 600;
            color: #e8edf6;
            margin-top: 1.6em;
            line-height: 1.4;
        }
        .article-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: #e8edf6;
            margin-top: 1.4em;
        }
        .article-body p {
            margin-top: 1em;
        }
        .article-body a {
            color: var(--accent);
            border-bottom: 1px solid rgba(110, 168, 255, 0.35);
        }
        .article-body a:hover {
            color: #aad0ff;
            border-bottom-color: var(--accent);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.5em;
            margin-top: 1em;
        }
        .article-body ul li,
        .article-body ol li {
            margin-top: 0.45em;
        }
        .article-body ul li::marker {
            color: var(--accent);
        }
        .article-body blockquote {
            border-left: 4px solid var(--gold);
            background: rgba(255, 210, 122, 0.06);
            padding: 18px 24px;
            border-radius: 0 12px 12px 0;
            color: #ecd9b8;
            font-style: italic;
            margin: 1.6em 0;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 1.5em 0;
            box-shadow: var(--shadow-soft);
        }
        .article-body pre {
            background: #0a0f1e;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 20px 24px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            color: #b8c6e2;
        }
        .article-body code {
            font-family: "Fira Code", "SF Mono", Consolas, monospace;
            font-size: 0.9em;
            background: rgba(255, 255, 255, 0.07);
            padding: 2px 7px;
            border-radius: 5px;
            color: #c9d4eb;
        }
        .article-body pre code {
            background: none;
            padding: 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            margin: 1.5em 0;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 16px;
            text-align: left;
        }
        .article-body table th {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-weight: 600;
            white-space: nowrap;
        }
        .article-body table tr:nth-child(even) {
            background: rgba(255, 255, 255, 0.025);
        }
        .article-body hr {
            border: none;
            height: 1px;
            background: rgba(255, 255, 255, 0.07);
            margin: 2em 0;
        }
        .article-body .aligncenter {
            text-align: center;
        }
        .article-not-found {
            background: var(--bg-glass);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 64px 44px;
            text-align: center;
            box-shadow: var(--shadow-soft);
            max-width: 720px;
            margin: 0 auto;
        }
        .article-not-found-icon {
            font-size: 60px;
            color: var(--accent);
            opacity: 0.7;
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--violet));
            color: #fff;
            box-shadow: 0 6px 24px rgba(110, 168, 255, 0.3);
        }
        .btn-primary:hover {
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(110, 168, 255, 0.45);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            background: rgba(110, 168, 255, 0.08);
            color: #fff;
            transform: translateY(-3px);
        }
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }
        .side-card {
            background: var(--bg-glass);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 24px 24px;
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(6px);
        }
        .side-card-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 9px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .side-card-title i {
            color: var(--accent);
            font-size: 15px;
        }
        .side-meta-list {
            list-style: none;
            padding: 0;
        }
        .side-meta-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
            font-size: 14px;
        }
        .side-meta-list li:last-child {
            border-bottom: none;
        }
        .side-meta-list .label {
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-meta-list .value {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .side-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .side-tags a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 13px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-secondary);
        }
        .side-tags a:hover {
            border-color: rgba(110, 168, 255, 0.4);
            color: var(--accent);
            background: rgba(110, 168, 255, 0.07);
        }
        .side-about {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .side-about strong {
            color: #fff;
            display: block;
            margin-bottom: 6px;
            font-size: 15px;
        }
        .side-about a {
            color: var(--accent);
            font-weight: 500;
        }
        .related-section {
            padding: 72px 0 40px;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 32px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            position: relative;
            padding-left: 18px;
        }
        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: linear-gradient(180deg, var(--accent), var(--violet));
            border-radius: 4px;
        }
        .section-head .more-link {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .section-head .more-link:hover {
            color: var(--accent);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .related-card {
            display: block;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform 0.35s, box-shadow 0.35s, border-color 0.35s;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 44px rgba(0, 0, 0, 0.45);
            border-color: rgba(110, 168, 255, 0.25);
        }
        .related-media {
            position: relative;
            height: 160px;
            overflow: hidden;
        }
        .related-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .related-card:hover .related-media img {
            transform: scale(1.06);
        }
        .related-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(11, 17, 32, 0.88) 100%);
            pointer-events: none;
        }
        .related-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(6, 9, 18, 0.78);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #cfe3ff;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.4px;
        }
        .related-info {
            padding: 16px 18px 18px;
        }
        .related-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: #e5ecf7;
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }
        .related-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .related-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .related-meta i {
            font-size: 11px;
        }
        .tools-section {
            padding: 64px 0;
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tool-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            text-align: center;
            transition: transform 0.35s, box-shadow 0.35s, border-color 0.35s;
            position: relative;
            overflow: hidden;
        }
        .tool-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--violet));
            opacity: 0;
            transition: opacity 0.3s;
        }
        .tool-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
            border-color: rgba(110, 168, 255, 0.22);
        }
        .tool-card:hover::before {
            opacity: 1;
        }
        .tool-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(110, 168, 255, 0.16), rgba(155, 125, 255, 0.14));
            border: 1px solid rgba(110, 168, 255, 0.22);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--accent);
        }
        .tool-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .tool-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .tool-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .tool-link:hover {
            color: #aad0ff;
        }
        .faq-section {
            padding: 72px 0 40px;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .faq-item.active {
            border-color: rgba(110, 168, 255, 0.25);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: background 0.3s;
        }
        .faq-q:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-q i {
            font-size: 13px;
            color: var(--accent);
            transition: transform 0.35s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }
        .faq-a {
            display: none;
            padding: 0 24px 22px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .faq-item.active .faq-a {
            display: block;
        }
        .cta-section {
            padding: 70px 0 80px;
        }
        .cta-box {
            position: relative;
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            background: linear-gradient(135deg, rgba(17, 26, 46, 0.9), rgba(10, 15, 30, 0.95)), url("/assets/images/backpic/back-3.png") center / cover;
            border: 1px solid rgba(110, 168, 255, 0.2);
            text-align: center;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 85% 10%, rgba(110, 168, 255, 0.18) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-box p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-btns {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .site-footer {
            background: #05070f;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 24px;
            position: relative;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-about .logo {
            margin-bottom: 14px;
            font-size: 20px;
        }
        .footer-about p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 17px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 26px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: color 0.25s, transform 0.25s;
        }
        .footer-col ul a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-contact span {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 15px;
            font-size: 13px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links a {
                padding: 8px 12px;
                font-size: 14px;
                gap: 5px;
            }
            .nav-links a i {
                display: none;
            }
            .nav-cta {
                padding: 9px 16px;
                font-size: 13px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .nav-wrap {
                height: 64px;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(6, 9, 18, 0.97);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 16px 20px 22px;
                gap: 6px;
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
                box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                padding: 13px 18px;
                font-size: 15px;
                border-radius: 12px;
                justify-content: flex-start;
            }
            .nav-links a i {
                display: inline-flex;
                width: 22px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .article-hero {
                padding: 124px 0 56px;
            }
            .article-title {
                font-size: 30px;
            }
            .article-lead {
                font-size: 15px;
            }
            .article-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .article-sidebar {
                position: static;
                order: -1;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .article-sidebar .side-card:last-child {
                grid-column: span 2;
            }
            .article-body {
                padding: 30px 24px;
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 22px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .related-media {
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 19px;
                gap: 7px;
            }
            .logo i {
                font-size: 20px;
            }
            .nav-links {
                top: 60px;
            }
            .nav-wrap {
                height: 60px;
            }
            .article-hero {
                padding: 108px 0 44px;
            }
            .article-title {
                font-size: 25px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
            .article-body {
                padding: 24px 18px;
                border-radius: 18px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .article-sidebar .side-card:last-child {
                grid-column: auto;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .related-media {
                height: 176px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                margin-bottom: 22px;
            }
            .section-head h2 {
                font-size: 23px;
            }
            .faq-q {
                padding: 17px 18px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .cta-btns .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root{
  --primary:#7c6cff;
  --primary-dark:#5b4bd6;
  --primary-soft:rgba(124,108,255,.12);
  --accent:#f5a623;
  --accent-soft:rgba(245,166,35,.14);
  --bg-deep:#0b0e1a;
  --bg-dark:#111527;
  --bg-card:#161b30;
  --bg-card-hover:#1b2140;
  --text-main:#e8eaf6;
  --text-soft:#a3abc4;
  --text-faint:#6d7592;
  --border:rgba(124,108,255,.16);
  --border-light:rgba(255,255,255,.07);
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --shadow:0 14px 44px rgba(0,0,0,.38);
  --shadow-hover:0 20px 54px rgba(124,108,255,.16);
  --spacer:120px;
  --font-scale:1.06;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg-deep);color:var(--text-main);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{width:min(1200px,92%);margin:0 auto}
section{position:relative}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--primary),var(--primary-dark));border-radius:20px}

/* ---------- Header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,14,26,.48);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06);transition:all .4s ease}
.site-header.scrolled{background:rgba(11,14,26,.92);box-shadow:0 8px 32px rgba(0,0,0,.35);border-bottom-color:rgba(124,108,255,.14)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:800;letter-spacing:.5px;color:var(--text-main);white-space:nowrap}
.logo i{color:var(--accent);font-size:1.35rem;filter:drop-shadow(0 0 10px rgba(245,166,35,.5))}
.logo:hover i{transform:rotate(18deg)}
.logo i{transition:transform .4s ease}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-links a{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:40px;font-size:.92rem;font-weight:500;color:var(--text-soft);transition:all .3s ease;border:1px solid transparent}
.nav-links a i{font-size:.85rem;opacity:.85}
.nav-links a:hover{color:var(--text-main);background:rgba(255,255,255,.07)}
.nav-links a.active{color:#fff;background:var(--primary-soft);border-color:rgba(124,108,255,.32);box-shadow:0 0 20px rgba(124,108,255,.15)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:40px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:.9rem;font-weight:600;box-shadow:0 6px 20px rgba(124,108,255,.3);transition:all .3s ease;white-space:nowrap}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(124,108,255,.4)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text-main);width:40px;height:40px;border-radius:10px;font-size:1rem;cursor:pointer;transition:all .3s ease}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-soft)}

/* ---------- Hero ---------- */
.category-hero{min-height:72vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:160px 0 100px;background:linear-gradient(rgba(11,14,26,.78),rgba(11,14,26,.9)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;position:relative;overflow:hidden}
.category-hero::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 70%,rgba(124,108,255,.16),transparent 60%),radial-gradient(circle at 75% 25%,rgba(245,166,35,.1),transparent 50%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;border-radius:40px;background:rgba(245,166,35,.12);border:1px solid rgba(245,166,35,.35);color:var(--accent);font-size:.85rem;font-weight:600;margin-bottom:22px;animation:fadeUp .7s ease .1s both}
.hero-badge i{animation:pulse 2.4s infinite}
.category-hero h1{font-size:clamp(2.2rem,5.2vw,3.6rem);font-weight:800;letter-spacing:1px;line-height:1.25;margin-bottom:20px;text-shadow:0 4px 30px rgba(0,0,0,.4);animation:fadeUp .7s ease .25s both}
.category-hero h1 span{background:linear-gradient(135deg,var(--accent),#ffd88a);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:1.08rem;color:var(--text-soft);line-height:1.9;margin-bottom:36px;animation:fadeUp .7s ease .4s both}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;animation:fadeUp .7s ease .55s both}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 26px;border-radius:50px;font-size:.95rem;font-weight:600;transition:all .3s ease;border:none;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 8px 26px rgba(124,108,255,.36)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(124,108,255,.5)}
.btn-outline{background:rgba(255,255,255,.06);color:var(--text-main);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(6px)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);background:rgba(245,166,35,.08)}
.hero-meta{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:40px;flex-wrap:wrap;color:var(--text-soft);font-size:.85rem}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta i{color:var(--accent)}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.08)}}

/* ---------- Live Stats ---------- */
.live-stats{padding:80px 0;margin-top:-40px;position:relative;z-index:3}
.stats-card{background:linear-gradient(145deg,rgba(22,27,48,.95),rgba(17,21,39,.95));border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px 40px;box-shadow:var(--shadow);backdrop-filter:blur(12px);display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center;padding:16px 8px;position:relative}
.stat-item + .stat-item::before{content:'';position:absolute;left:-16px;top:20%;height:60%;width:1px;background:linear-gradient(transparent,rgba(255,255,255,.14),transparent)}
.stat-num{font-size:2.6rem;font-weight:800;background:linear-gradient(135deg,#fff,var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;letter-spacing:1px}
.stat-num small{font-size:1rem;font-weight:600;color:var(--accent);margin-left:3px}
.stat-label{font-size:.9rem;color:var(--text-soft);margin-top:6px}

/* ---------- Live Types ---------- */
.live-types{padding:var(--spacer) 0 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.section-tag{display:inline-flex;align-items:center;gap:7px;padding:6px 16px;border-radius:40px;background:var(--primary-soft);border:1px solid rgba(124,108,255,.3);color:var(--primary);font-size:.82rem;font-weight:600;margin-bottom:16px}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;letter-spacing:.5px;margin-bottom:12px}
.section-head p{color:var(--text-soft);font-size:1rem;line-height:1.8}
.types-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.type-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:32px 26px;position:relative;overflow:hidden;transition:all .35s ease}
.type-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:all .4s ease}
.type-card:hover{transform:translateY(-8px);background:var(--bg-card-hover);border-color:rgba(124,108,255,.3);box-shadow:var(--shadow-hover)}
.type-card:hover::before{opacity:1}
.type-icon{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.35rem;margin-bottom:20px;background:linear-gradient(135deg,rgba(124,108,255,.18),rgba(245,166,35,.12));color:var(--primary);transition:transform .35s ease}
.type-card:hover .type-icon{transform:scale(1.1) rotate(-6deg)}
.type-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px}
.type-card p{font-size:.9rem;color:var(--text-soft);line-height:1.7}
.type-meta{display:flex;align-items:center;gap:14px;margin-top:18px;font-size:.8rem;color:var(--text-faint)}
.type-meta i{color:var(--accent)}

/* ---------- Featured Live ---------- */
.live-featured{padding:var(--spacer) 0;background:linear-gradient(180deg,transparent,rgba(124,108,255,.05),transparent)}
.live-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.live-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;transition:all .35s ease;position:relative;display:flex;flex-direction:column}
.live-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:rgba(124,108,255,.3)}
.live-thumb{position:relative;aspect-ratio:3/2;overflow:hidden}
.live-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.live-card:hover .live-thumb img{transform:scale(1.06)}
.live-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,14,26,0) 45%,rgba(11,14,26,.72) 100%)}
.live-live{position:absolute;top:12px;left:12px;z-index:2;display:inline-flex;align-items:center;gap:5px;background:rgba(232,55,55,.9);color:#fff;font-size:.7rem;font-weight:700;padding:4px 11px;border-radius:40px;letter-spacing:.5px}
.live-live i{animation:pulse 1.6s infinite}
.live-badge{position:absolute;top:12px;right:12px;z-index:2;background:rgba(11,14,26,.75);backdrop-filter:blur(8px);color:var(--accent);font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:40px;border:1px solid rgba(245,166,35,.3)}
.live-play{position:absolute;bottom:14px;right:14px;z-index:2;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.92);color:#111;display:flex;align-items:center;justify-content:center;font-size:.8rem;opacity:0;transform:scale(.6);transition:all .35s ease;box-shadow:0 4px 16px rgba(0,0,0,.3)}
.live-card:hover .live-play{opacity:1;transform:scale(1)}
.live-info{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.live-tags{display:flex;gap:7px;margin-bottom:10px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:30px;font-size:.72rem;font-weight:500;background:var(--primary-soft);color:var(--primary)}
.tag.gold{background:var(--accent-soft);color:var(--accent)}
.tag.green{background:rgba(46,204,113,.12);color:#51d88a}
.live-info h3{font-size:1rem;font-weight:700;line-height:1.5;margin-bottom:10px;transition:color .3s ease;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.live-card:hover .live-info h3{color:var(--primary)}
.live-stats{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid var(--border-light);font-size:.8rem;color:var(--text-faint)}
.live-stats span{display:inline-flex;align-items:center;gap:6px}
.live-stats i{color:var(--accent)}

/* ---------- Schedule ---------- */
.live-schedule{padding:var(--spacer) 0}
.schedule-wrap{display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:start}
.schedule-aside{background:linear-gradient(160deg,var(--bg-card),var(--bg-dark));border:1px solid var(--border);border-radius:var(--radius);padding:32px 26px;position:sticky;top:100px}
.schedule-aside h3{font-size:1.1rem;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.schedule-aside h3 i{color:var(--accent)}
.schedule-aside p{font-size:.85rem;color:var(--text-soft);margin-bottom:22px;line-height:1.7}
.schedule-time-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.schedule-time-list li{font-size:.85rem;color:var(--text-soft);display:flex;align-items:center;gap:10px;padding:7px 0}
.schedule-time-list li i{color:var(--primary);width:16px;font-size:.8rem}
.schedule-list{display:flex;flex-direction:column;gap:14px}
.schedule-item{display:flex;align-items:center;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:18px 24px;gap:20px;transition:all .3s ease;flex-wrap:wrap}
.schedule-item:hover{border-color:rgba(124,108,255,.35);background:var(--bg-card-hover);transform:translateX(6px)}
.schedule-time{background:var(--primary-soft);border:1px solid rgba(124,108,255,.25);color:var(--primary);font-weight:700;font-size:.85rem;padding:8px 14px;border-radius:10px;min-width:72px;text-align:center;letter-spacing:.5px}
.schedule-name{flex:1;font-weight:600;font-size:.98rem}
.schedule-name span{display:block;font-size:.8rem;color:var(--text-faint);font-weight:400;margin-top:2px}
.schedule-type{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;padding:4px 12px;border-radius:30px;background:rgba(245,166,35,.1);color:var(--accent);border:1px solid rgba(245,166,35,.2);white-space:nowrap}
.schedule-type.special{background:rgba(124,108,255,.12);color:var(--primary);border-color:rgba(124,108,255,.28)}

/* ---------- FAQ ---------- */
.live-faq{padding:var(--spacer) 0;background:linear-gradient(180deg,transparent,rgba(245,166,35,.03),transparent)}
.faq-grid{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);transition:all .3s ease;overflow:hidden}
.faq-item:hover{border-color:rgba(124,108,255,.25)}
.faq-item details::marker{content:''}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;list-style:none;padding:20px 24px;font-weight:600;font-size:.98rem;transition:background .3s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(124,108,255,.04)}
.faq-item summary i{color:var(--primary);font-size:1rem;transition:transform .3s ease;flex-shrink:0}
.faq-item details[open] summary{border-bottom:1px solid var(--border-light)}
.faq-item details[open] summary i{transform:rotate(45deg)}
.faq-answer{padding:18px 24px 22px;color:var(--text-soft);font-size:.92rem;line-height:1.8}
.faq-answer strong{color:var(--text-main)}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 var(--spacer)}
.cta-box{background:linear-gradient(135deg,rgba(124,108,255,.16),rgba(11,14,26,.9) 55%),url('/assets/images/backpic/back-3.png') center/cover no-repeat;border:1px solid rgba(124,108,255,.3);border-radius:calc(var(--radius-lg) + 6px);padding:64px 50px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.cta-box::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(245,166,35,.12),transparent 55%);pointer-events:none}
.cta-box h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;margin-bottom:14px;position:relative;z-index:2}
.cta-box p{color:var(--text-soft);font-size:1rem;margin-bottom:30px;max-width:520px;margin-left:auto;margin-right:auto;position:relative;z-index:2}
.cta-form{display:flex;gap:12px;justify-content:center;max-width:500px;margin:0 auto;flex-wrap:wrap;position:relative;z-index:2}
.cta-form input{flex:1;min-width:220px;padding:13px 20px;border-radius:50px;border:1px solid rgba(255,255,255,.16);background:rgba(11,14,26,.7);color:var(--text-main);font-size:.9rem;outline:none;transition:all .3s ease;backdrop-filter:blur(8px)}
.cta-form input::placeholder{color:var(--text-faint)}
.cta-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,108,255,.2)}
.cta-form .btn-primary{box-shadow:0 8px 26px rgba(245,166,35,.3)}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-dark);border-top:1px solid var(--border-light);padding:72px 0 0;position:relative;overflow:hidden}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),var(--accent),transparent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:50px}
.footer-about .logo{margin-bottom:16px}
.footer-about p{font-size:.88rem;color:var(--text-soft);line-height:1.8;max-width:300px}
.footer-col h4{font-size:.95rem;font-weight:700;margin-bottom:18px;color:var(--text-main);position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:26px;height:2px;background:var(--primary);border-radius:2px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:.88rem;color:var(--text-soft);transition:all .3s ease;display:inline-flex;align-items:center;gap:7px}
.footer-col ul a:hover{color:var(--accent);padding-left:5px}
.footer-col ul a i{font-size:.7rem;color:var(--primary)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:.85rem;color:var(--text-soft)}
.footer-contact span{display:flex;align-items:center;gap:10px}
.footer-contact i{color:var(--primary);font-size:.9rem}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:24px 0;border-top:1px solid var(--border-light);font-size:.8rem;color:var(--text-faint)}
.footer-bottom a{color:var(--text-faint);transition:color .3s ease}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .nav-links{display:flex;gap:2px}
  .nav-links a{padding:7px 11px;font-size:.85rem}
  .live-grid{grid-template-columns:repeat(2,1fr)}
  .types-grid{grid-template-columns:repeat(2,1fr)}
  .schedule-wrap{grid-template-columns:1fr}
  .schedule-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:72px;right:16px;background:rgba(11,14,26,.96);backdrop-filter:blur(20px);flex-direction:column;align-items:stretch;padding:14px;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow);gap:4px;min-width:200px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .3s ease}
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{padding:11px 16px;font-size:.92rem}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .stats-card{grid-template-columns:repeat(2,1fr);gap:20px;padding:30px}
  .stat-item + .stat-item::before{display:none}
  .types-grid{grid-template-columns:1fr}
  .live-grid{grid-template-columns:1fr;max-width:430px;margin:0 auto}
  .category-hero{padding-top:130px}
  .schedule-item{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-box{padding:42px 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:center;text-align:center}
  .hero-meta{gap:16px}
}
@media(max-width:520px){
  .container{width:90%}
  .stats-card{grid-template-columns:1fr 1fr;gap:16px;padding:20px;border-radius:var(--radius)}
  .stat-num{font-size:1.9rem}
  .hero-actions .btn{width:100%;justify-content:center}
  .cta-form{flex-direction:column}
  .cta-form input{width:100%}
  .cta-form .btn{width:100%;justify-content:center}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root {
      --primary: #7c5cff;
      --primary-dark: #5b3fe0;
      --accent: #00c9ff;
      --accent-soft: rgba(0, 201, 255, 0.12);
      --gold: #ffce54;
      --bg-deep: #0b0f1e;
      --bg-body: #0b1026;
      --bg-soft: #121833;
      --bg-card: #171f3d;
      --bg-glass: rgba(11, 15, 30, 0.72);
      --text: #eaeefb;
      --text-weak: #96a0c3;
      --text-mute: #6f7ba3;
      --border: rgba(255, 255, 255, 0.08);
      --border-light: rgba(255, 255, 255, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-sm: 0 6px 18px rgba(0, 0, 0, 0.22);
      --shadow-md: 0 16px 42px rgba(0, 0, 0, 0.32);
      --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);
      --shadow-primary: 0 12px 32px rgba(124, 92, 255, 0.28);
      --transition: 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
      --container: 1200px;
    }

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

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

    body {
      font-family: "Inter", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
      background: var(--bg-body);
      color: var(--text);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

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

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

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

    input,
    select,
    textarea {
      font-family: inherit;
      font-size: 14px;
    }

    ul,
    ol {
      list-style: none;
    }

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

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 44px;
      flex-wrap: wrap;
    }

    .section-head .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--accent);
      background: var(--accent-soft);
      border: 1px solid rgba(0, 201, 255, 0.2);
      padding: 6px 14px;
      border-radius: 40px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .section-head h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      line-height: 1.2;
      letter-spacing: -0.02em;
      font-weight: 800;
      max-width: 640px;
    }

    .section-head p {
      color: var(--text-weak);
      font-size: 15px;
      max-width: 560px;
    }

    .section-more a {
      color: var(--accent);
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .section-more a i {
      font-size: 12px;
      transition: transform 0.25s;
    }

    .section-more a:hover i {
      transform: translateX(4px);
    }

    /* ===== 导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: transparent;
      border-bottom: 1px solid transparent;
      transition: background 0.35s, border-color 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
      backdrop-filter: blur(0);
      -webkit-backdrop-filter: blur(0);
    }

    .site-header.scrolled {
      background: var(--bg-glass);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom-color: var(--border);
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.28);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      gap: 24px;
      padding: 16px 0;
      min-height: 76px;
    }

    .logo {
      font-size: 21px;
      font-weight: 800;
      letter-spacing: -0.01em;
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .logo i {
      font-size: 22px;
      color: var(--gold);
      background: linear-gradient(145deg, rgba(255, 206, 84, 0.15), rgba(255, 206, 84, 0.05));
      border: 1px solid rgba(255, 206, 84, 0.22);
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-left: auto;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.72);
      padding: 10px 16px;
      border-radius: 999px;
      transition: all 0.28s;
      white-space: nowrap;
    }

    .nav-links a i {
      font-size: 14px;
      opacity: 0.85;
    }

    .nav-links a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }

    .nav-links a.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(124, 92, 255, 0.25), rgba(0, 201, 255, 0.15));
      border: 1px solid rgba(124, 92, 255, 0.24);
      box-shadow: 0 4px 18px rgba(124, 92, 255, 0.15);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: 999px;
      box-shadow: var(--shadow-primary);
      transition: transform 0.28s, box-shadow 0.28s;
      flex-shrink: 0;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 40px rgba(124, 92, 255, 0.4);
      color: #fff;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.06);
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #fff;
      flex-shrink: 0;
    }

    @media (max-width: 1024px) {
      .nav-wrap {
        gap: 16px;
      }

      .nav-links {
        position: fixed;
        top: 76px;
        right: 16px;
        width: 320px;
        max-width: calc(100vw - 32px);
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        background: rgba(13, 18, 38, 0.96);
        border: 1px solid var(--border);
        border-radius: 18px;
        padding: 18px;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        box-shadow: var(--shadow-lg);
        transform: translateY(-16px);
        opacity: 0;
        pointer-events: none;
        transition: all 0.32s;
      }

      .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
      }

      .nav-links a {
        border-radius: 12px;
        padding: 13px 16px;
      }

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

      .nav-cta {
        margin-left: auto;
      }
    }

    @media (max-width: 640px) {
      .nav-cta {
        display: none;
      }

      .nav-wrap {
        justify-content: space-between;
      }
    }

    /* ===== Hero 区域 ===== */
    .tools-hero {
      position: relative;
      padding: 180px 0 120px;
      background:
        linear-gradient(180deg, rgba(11, 15, 30, 0.45) 0%, rgba(11, 15, 30, 0.72) 70%, var(--bg-body) 100%),
        url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      overflow: hidden;
    }

    .tools-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 15% 20%, rgba(124, 92, 255, 0.2), transparent 50%),
        radial-gradient(ellipse at 85% 30%, rgba(0, 201, 255, 0.15), transparent 50%);
      pointer-events: none;
    }

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

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(0, 201, 255, 0.1);
      border: 1px solid rgba(0, 201, 255, 0.22);
      padding: 7px 16px;
      border-radius: 999px;
      margin-bottom: 20px;
      backdrop-filter: blur(8px);
    }

    .tools-hero h1 {
      font-size: clamp(38px, 5.6vw, 64px);
      font-weight: 900;
      line-height: 1.1;
      letter-spacing: -0.03em;
      max-width: 700px;
      margin-bottom: 18px;
    }

    .tools-hero h1 span {
      background: linear-gradient(120deg, #fff 20%, var(--accent) 70%, var(--primary) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 17px;
      line-height: 1.8;
      color: rgba(234, 238, 251, 0.78);
      max-width: 600px;
      margin-bottom: 34px;
    }

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

    .btn-primary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 30px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      transition: all 0.3s;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      box-shadow: 0 14px 38px rgba(124, 92, 255, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 20px 50px rgba(124, 92, 255, 0.48);
      color: #fff;
    }

    .btn-ghost {
      border-color: rgba(255, 255, 255, 0.22);
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
      backdrop-filter: blur(10px);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.4);
      transform: translateY(-3px);
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-top: 56px;
      max-width: 760px;
    }

    .hero-stat {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 16px 18px;
      backdrop-filter: blur(8px);
    }

    .hero-stat b {
      font-size: 24px;
      font-weight: 800;
      display: block;
      line-height: 1.3;
      background: linear-gradient(120deg, #fff, var(--accent));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-stat span {
      font-size: 13px;
      color: var(--text-weak);
    }

    @media (max-width: 768px) {
      .tools-hero {
        padding: 150px 0 80px;
      }

      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 40px;
      }
    }

    /* ===== 工具分类 ===== */
    .categories-bar {
      padding: 60px 0 10px;
    }

    .category-tags {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }

    .category-tag {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      text-align: center;
      transition: all 0.28s;
    }

    .category-tag i {
      font-size: 26px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 10px;
    }

    .category-tag h3 {
      font-size: 14px;
      font-weight: 600;
    }

    .category-tag span {
      font-size: 12px;
      color: var(--text-mute);
    }

    .category-tag:hover {
      transform: translateY(-4px);
      border-color: rgba(124, 92, 255, 0.35);
      box-shadow: var(--shadow-sm);
    }

    @media (max-width: 1024px) {
      .category-tags {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 640px) {
      .category-tags {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    /* ===== 精选工具 ===== */
    .tools-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .tool-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      overflow: hidden;
      transition: all 0.32s;
      position: relative;
    }

    .tool-card:hover {
      transform: translateY(-6px);
      border-color: rgba(124, 92, 255, 0.4);
      box-shadow: var(--shadow-md);
    }

    .tool-card .tool-cover {
      height: 170px;
      overflow: hidden;
      position: relative;
    }

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

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

    .tool-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(13, 18, 38, 0.85) 100%);
    }

    .tool-badge {
      position: absolute;
      top: 12px;
      left: 12px;
      z-index: 2;
      font-size: 12px;
      font-weight: 600;
      background: rgba(0, 0, 0, 0.55);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 4px 10px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    .tool-body {
      padding: 18px 18px 20px;
    }

    .tool-meta {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      margin-bottom: 10px;
    }

    .tool-meta span {
      font-size: 12px;
      color: var(--text-weak);
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      padding: 2px 9px;
      border-radius: 8px;
    }

    .tool-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .tool-body p {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .tool-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }

    .tool-rating {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: var(--text-weak);
    }

    .tool-rating i {
      color: var(--gold);
    }

    .tool-download {
      font-size: 14px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .tool-download i {
      font-size: 12px;
      transition: transform 0.25s;
    }

    .tool-download:hover i {
      transform: translateY(2px);
    }

    @media (max-width: 1080px) {
      .tools-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .tools-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 热门排行 ===== */
    .rank-section {
      background: linear-gradient(180deg, var(--bg-body), var(--bg-soft), var(--bg-body));
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .rank-list {
      display: grid;
      gap: 12px;
    }

    .rank-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      display: flex;
      align-items: center;
      gap: 18px;
      transition: all 0.28s;
    }

    .rank-item:hover {
      border-color: rgba(124, 92, 255, 0.35);
      transform: translateX(4px);
      box-shadow: var(--shadow-sm);
    }

    .rank-num {
      font-size: 20px;
      font-weight: 900;
      min-width: 36px;
      text-align: center;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .rank-item:nth-child(1) .rank-num {
      color: var(--gold);
      -webkit-text-fill-color: var(--gold);
    }

    .rank-item:nth-child(2) .rank-num {
      color: #c8d6ff;
      -webkit-text-fill-color: #c8d6ff;
    }

    .rank-item:nth-child(3) .rank-num {
      color: #e3a98e;
      -webkit-text-fill-color: #e3a98e;
    }

    .rank-icon {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: var(--accent-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--accent);
      flex-shrink: 0;
    }

    .rank-info {
      flex: 1;
      min-width: 0;
    }

    .rank-info h3 {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.4;
    }

    .rank-info p {
      font-size: 13px;
      color: var(--text-mute);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .rank-tags {
      display: flex;
      gap: 6px;
      flex-shrink: 0;
    }

    .rank-tags span {
      font-size: 12px;
      color: var(--text-weak);
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      padding: 3px 10px;
      border-radius: 999px;
    }

    .rank-go {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(124, 92, 255, 0.12);
      color: var(--primary);
      flex-shrink: 0;
      transition: all 0.25s;
    }

    .rank-item:hover .rank-go {
      background: var(--primary);
      color: #fff;
    }

    @media (max-width: 768px) {
      .rank-tags {
        display: none;
      }

      .rank-info p {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
      }
    }

    @media (max-width: 480px) {
      .rank-item {
        gap: 12px;
        padding: 14px 16px;
      }

      .rank-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
      }
    }

    /* ===== 流程步骤 ===== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      counter-reset: step;
    }

    .step-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 28px 20px 22px;
      transition: all 0.28s;
    }

    .step-card::before {
      counter-increment: step;
      content: counter(step, decimal-leading-zero);
      position: absolute;
      top: -12px;
      left: 18px;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.05em;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      padding: 4px 10px;
      border-radius: 999px;
      box-shadow: 0 6px 16px rgba(124, 92, 255, 0.3);
    }

    .step-card:hover {
      transform: translateY(-5px);
      border-color: rgba(0, 201, 255, 0.3);
      box-shadow: var(--shadow-sm);
    }

    .step-card i {
      font-size: 28px;
      color: var(--accent);
      margin-bottom: 14px;
      margin-top: 6px;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-weak);
      line-height: 1.6;
    }

    @media (max-width: 1024px) {
      .steps-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 640px) {
      .steps-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== 推荐联动 ===== */
    .recommend-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .recommend-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 280px;
      display: flex;
      align-items: flex-end;
      border: 1px solid var(--border);
      transition: all 0.32s;
    }

    .recommend-card img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s;
    }

    .recommend-card::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 15, 30, 0.1) 20%, rgba(11, 15, 30, 0.92) 100%);
    }

    .recommend-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(124, 92, 255, 0.3);
    }

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

    .recommend-content {
      position: relative;
      z-index: 2;
      padding: 24px;
      width: 100%;
    }

    .recommend-content span {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(0, 0, 0, 0.4);
      backdrop-filter: blur(8px);
      padding: 4px 12px;
      border-radius: 999px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .recommend-content h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .recommend-content p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 12px;
    }

    .recommend-content a {
      font-size: 14px;
      font-weight: 600;
      color: #fff;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .recommend-content a i {
      font-size: 12px;
      transition: transform 0.25s;
    }

    .recommend-content a:hover i {
      transform: translateX(4px);
    }

    @media (max-width: 768px) {
      .recommend-grid {
        grid-template-columns: 1fr;
      }

      .recommend-card {
        height: 240px;
      }
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.3s;
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 22px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      list-style: none;
    }

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

    .faq-item summary i {
      flex-shrink: 0;
      color: var(--primary);
      font-size: 14px;
      transition: transform 0.3s;
    }

    .faq-item[open] {
      border-color: rgba(124, 92, 255, 0.3);
    }

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

    .faq-answer {
      padding: 0 22px 20px;
      color: var(--text-weak);
      font-size: 14px;
      line-height: 1.8;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 90px 0;
      position: relative;
      background:
        linear-gradient(180deg, rgba(11, 15, 30, 0.8), rgba(11, 15, 30, 0.9)),
        url('/assets/images/backpic/back-3.png') center/cover fixed;
      text-align: center;
    }

    .cta-section .container {
      position: relative;
      z-index: 2;
    }

    .cta-section h2 {
      font-size: clamp(28px, 4vw, 44px);
      font-weight: 900;
      margin-bottom: 14px;
    }

    .cta-section p {
      font-size: 16px;
      color: var(--text-weak);
      max-width: 540px;
      margin: 0 auto 32px;
    }

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

    /* ===== Footer ===== */
    .site-footer {
      background: #080c18;
      border-top: 1px solid var(--border);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 48px;
    }

    .footer-about .logo {
      margin-bottom: 14px;
    }

    .footer-about p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-mute);
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
      color: #fff;
    }

    .footer-col ul {
      display: grid;
      gap: 10px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: var(--text-weak);
      transition: all 0.25s;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .footer-col ul a:hover {
      color: var(--accent);
      transform: translateX(4px);
    }

    .footer-contact {
      display: grid;
      gap: 10px;
      font-size: 14px;
      color: var(--text-weak);
    }

    .footer-contact span {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-contact i {
      color: var(--primary);
      width: 16px;
      text-align: center;
    }

    .footer-bottom {
      border-top: 1px solid var(--border);
      padding: 22px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: var(--text-mute);
    }

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

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

    @media (max-width: 900px) {
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

    @media (max-width: 768px) {
      .section {
        padding: 64px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }
    }