/* roulang page: index */
:root {
  --primary: #00E57A;
  --primary-hover: #10f58a;
  --accent: #FF6A2C;
  --dark: #0B0F0E;
  --dark-border: #262D29;
  --lightbg: #F6F7F4;
  --card-bg: #FFFFFF;
  --border: #E3E8E2;
  --text-ink: #1F2320;
  --text-sub: #5E6B63;
  --text-light: #F2F5F2;
  --text-light-sub: #A0AEA5;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow-card: 0 2px 8px rgba(15,23,20,0.06);
  --shadow-card-hover: 0 10px 28px rgba(15,23,20,0.12);
  --shadow-dark: 0 8px 24px rgba(0,0,0,0.3);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--lightbg);
  color: var(--text-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-alt { background: var(--lightbg); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head h2 { font-size: 32px; font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { color: var(--text-sub); font-size: 16px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #06231a; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 0 0 4px rgba(0,229,122,0.18), 0 6px 16px rgba(0,229,122,0.25); transform: translateY(-1px); }
.btn-outline-dark { border-color: var(--text-ink); color: var(--text-ink); background: transparent; }
.btn-outline-dark:hover { background: rgba(0,229,122,0.08); border-color: var(--primary); color: var(--text-ink); }
.btn-outline-light { border-color: rgba(255,255,255,0.6); color: var(--text-light); background: transparent; }
.btn-outline-light:hover { background: rgba(0,229,122,0.12); border-color: var(--primary); color: var(--primary); }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}
.badge-primary { background: rgba(0,229,122,0.15); color: #008f4c; }
.badge-accent { background: rgba(255,106,44,0.14); color: #d84c13; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  border-bottom: 1px solid var(--dark-border);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-light);
  line-height: 1;
}
.logo small {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.08em;
}
.logo-active-bar { display: none; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light-sub);
  transition: color 0.2s ease;
  position: relative;
  padding: 6px 0;
}
.nav-links a:hover { color: var(--text-light); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 14px; }
.menu-toggle { display: none; font-size: 22px; color: var(--text-light); padding: 6px; }

/* Hero */
.hero {
  position: relative;
  min-height: 80vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(5,10,8,0.92) 10%, rgba(5,10,8,0.72) 55%, rgba(5,10,8,0.45) 100%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0,229,122,0.12);
  border: 1px solid rgba(0,229,122,0.3);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}
.hero-content h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-light);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-content h1 .hl { color: var(--primary); }
.hero-content > p {
  font-size: 16px;
  color: var(--text-light-sub);
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.login-state-card {
  background: rgba(15,22,18,0.85);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-dark);
  backdrop-filter: blur(6px);
}
.lsc-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.lsc-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #06231a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 0 5px rgba(0,229,122,0.15);
}
.lsc-head h3 { font-size: 15px; color: var(--text-light); font-weight: 700; }
.lsc-head p { font-size: 13px; color: var(--text-light-sub); }
.login-state-card ul { border-top: 1px solid var(--dark-border); padding-top: 18px; margin-bottom: 22px; }
.login-state-card li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-light-sub);
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}
.login-state-card li strong { color: var(--text-light); font-family: "Roboto Mono", monospace; }

/* Timeline */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.timeline-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}
.timeline-item::before {
  content: "";
  position: absolute;
  top: 42px;
  right: -24px;
  width: 24px;
  height: 2px;
  background: var(--primary);
  opacity: 0.5;
}
.timeline-item:last-child::before { display: none; }
.timeline-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.tl-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255,106,44,0.12);
  color: var(--accent);
  font-family: "Roboto Mono", monospace;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 16px;
}
.timeline-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.timeline-item p { font-size: 14px; color: var(--text-sub); }

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.feature-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.feature-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .feature-thumb img { transform: scale(1.03); }
.feature-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,229,122,0.15) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.feature-card:hover .feature-thumb::after { opacity: 1; }
.feature-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.feature-body .badge { align-self: flex-start; margin-bottom: 12px; }
.feature-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.feature-body p { font-size: 14px; color: var(--text-sub); margin-top: auto; }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 30px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}
.pricing-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
.pricing-card.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 8px 30px rgba(0,229,122,0.12);
  transform: scale(1.02);
  z-index: 1;
}
.pricing-flag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #06231a;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.pricing-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.pricing-card .price {
  font-family: "Roboto Mono", monospace;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
  margin: 14px 0 4px;
  color: var(--text-ink);
}
.pricing-card .price span { font-size: 15px; font-weight: 500; color: var(--text-sub); }
.pricing-desc { font-size: 13px; color: var(--text-sub); margin-bottom: 22px; }
.pricing-card ul { margin-bottom: 26px; flex: 1; }
.pricing-card li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  font-size: 15px;
  color: var(--text-ink);
}
.pricing-card li i { color: var(--primary); font-size: 14px; margin-top: 4px; }
.pricing-card li i.fa-xmark { color: #b8c2bb; }

/* CTA band */
.cta-band {
  background: var(--dark);
  position: relative;
  padding: 72px 0;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,122,0.16) 0%, transparent 65%);
}
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 680px; }
.cta-inner h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cta-inner p { color: var(--text-light-sub); font-size: 16px; margin-bottom: 28px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.news-thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-body .badge { align-self: flex-start; margin-bottom: 12px; }
.news-body h3 { font-size: 18px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
.news-body h3 a { transition: color 0.2s ease; }
.news-body h3 a:hover { color: #008f4c; }
.news-body p {
  font-size: 14px;
  color: var(--text-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 13px;
  color: var(--text-sub);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.news-meta a { font-weight: 600; color: var(--text-ink); transition: color 0.2s ease; display: inline-flex; align-items: center; gap: 6px; }
.news-meta a:hover { color: #008f4c; }
.news-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 60px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
  background: var(--card-bg);
  color: var(--text-sub);
  font-size: 15px;
}
.news-empty i { font-size: 34px; color: #c2ccc5; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}
.faq-item.active { box-shadow: var(--shadow-card-hover); border-color: rgba(0,229,122,0.4); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-ink);
  text-align: left;
  transition: background 0.2s ease;
}
.faq-question:hover { background: rgba(0,229,122,0.04); }
.faq-question i {
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(45deg); color: var(--accent); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.75;
}

/* Footer */
.site-footer { background: var(--dark); color: var(--text-light-sub); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 40px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-light);
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 14px;
}
.footer-logo small { color: var(--primary); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; }
.footer-brand p { font-size: 14px; line-height: 1.75; max-width: 320px; }
.footer-grid h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 16px;
}
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul a { font-size: 14px; transition: color 0.2s ease; }
.footer-grid ul a:hover { color: var(--primary); }
.footer-contact li { font-size: 14px; margin-bottom: 10px; }
.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding: 20px 0;
  font-size: 13px;
  text-align: center;
  color: var(--text-light-sub);
}

/* Responsive */
@media (max-width: 1023px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-content h1 { font-size: 40px; }
  .timeline-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .timeline-item::before { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.featured { transform: scale(1); order: -1; grid-column: 1 / -1; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 26px; }
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--dark-border);
    box-shadow: 0 12px 24px rgba(0,0,0,0.3);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    z-index: 99;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 0; font-size: 16px; border-bottom: 1px solid rgba(255,255,255,0.05); }
  .nav-links a.active::after { display: none; }
  .nav-links a.active { color: var(--primary); }
  .menu-toggle { display: inline-flex; }
  .hero { min-height: auto; }
  .hero-content h1 { font-size: 32px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .login-state-card { padding: 24px; }
  .timeline-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { grid-column: auto; order: 0; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-inner h2 { font-size: 28px; }
  .cta-actions .btn { width: 100%; justify-content: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-wrap { height: 68px; }
  .nav-links { top: 68px; }
  .logo { font-size: 18px; }
  .logo small { font-size: 11px; }
  .btn { font-size: 14px; padding: 11px 20px; }
  .hero-content h1 { font-size: 28px; }
  .feature-body { padding: 20px; }
  .pricing-card { padding: 28px 22px; }
  .pricing-card .price { font-size: 34px; }
  .faq-question { font-size: 15px; padding: 18px 18px; }
  .faq-answer p { padding: 0 18px 18px; }
}

/* roulang page: category1 */
:root {
  --primary: #00E57A;
  --primary-hover: #00FF8C;
  --accent: #FF6A2C;
  --dark: #0B0F0E;
  --dark-2: #141A17;
  --light: #F6F7F4;
  --white: #FFFFFF;
  --border-light: #E3E8E2;
  --border-dark: #262D29;
  --text-main: #1F2320;
  --text-sub: #5E6B63;
  --text-on-dark: #F2F5F2;
  --text-on-dark-sub: #A0AEA5;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-lg: 20px;
  --shadow-card: 0 2px 8px rgba(15,23,20,0.06);
  --shadow-hover: 0 10px 28px rgba(15,23,20,0.14);
  --container: 1200px;
  --font-en: 'Inter', 'Roboto Mono', monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  background: var(--light);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--dark);
  border-bottom: 1px solid var(--border-dark);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 23px;
  letter-spacing: 0.02em;
  color: var(--white);
  line-height: 1;
}
.logo small {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.08em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}
.nav-links > li { position: relative; }
.nav-links a.nav-item {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-on-dark-sub);
  transition: color .2s;
  padding: 8px 2px;
  display: inline-block;
}
.nav-links a.nav-item:hover { color: var(--white); }
.nav-links a.nav-item.active { color: var(--primary); }
.nav-links a.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.menu-toggle {
  display: none;
  font-size: 20px;
  color: var(--white);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  transition: background .2s;
}
.menu-toggle:hover { background: rgba(255,255,255,0.08); }
.nav-mobile-cta { display: none; }
/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  line-height: 1.2;
  border-radius: var(--radius-btn);
  padding: 12px 26px;
  transition: all .2s ease;
  font-size: 15px;
  gap: 8px;
}
.btn-primary { background: var(--primary); color: var(--dark); }
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 0 0 4px rgba(0,229,122,0.22), 0 8px 20px rgba(0,229,122,0.32);
}
.btn-outline { border: 1px solid var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: rgba(0,229,122,0.1); }
.btn-outline-light { border: 1px solid rgba(255,255,255,0.4); color: var(--text-on-dark); }
.btn-outline-light:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,229,122,0.08); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 14px 34px; font-size: 16px; }
/* ========== 通用区块 ========== */
.section { padding: 84px 0; }
.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-sub { font-size: 16px; color: var(--text-sub); margin-bottom: 40px; max-width: 640px; }
/* ========== 分类 Hero ========== */
.cat-hero {
  background:
    linear-gradient(90deg, rgba(11,15,14,0.94) 0%, rgba(11,15,14,0.80) 55%, rgba(11,15,14,0.58) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 104px 0 96px;
  color: var(--text-on-dark);
  position: relative;
  border-bottom: 1px solid var(--border-dark);
}
.cat-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent 70%);
}
.cat-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0,229,122,0.12);
  border: 1px solid rgba(0,229,122,0.3);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cat-hero h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.cat-hero__desc {
  font-size: 17px;
  color: var(--text-on-dark-sub);
  max-width: 560px;
  margin-bottom: 34px;
}
.cat-hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
/* ========== 核心能力三卡 ========== */
.feature-section { background: var(--white); border-bottom: 1px solid var(--border-light); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  opacity: 0;
  transition: opacity .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--dark);
  background: rgba(0,229,122,0.15);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}
/* ========== 数据仪表 ========== */
.stats-section {
  background: var(--dark);
  color: var(--text-on-dark);
  border-bottom: 1px solid var(--border-dark);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  border-left: 1px solid var(--border-dark);
  padding-left: 24px;
}
.stat-item__num {
  font-family: var(--font-en);
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.stat-item__num span { font-size: 18px; color: var(--text-on-dark-sub); }
.stat-item__label {
  font-size: 14px;
  color: var(--text-on-dark-sub);
  margin-top: 8px;
}
/* ========== 资讯卡片网格 ========== */
.news-section { background: var(--light); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #E9EDE8;
}
.news-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-card:hover .news-card__media img { transform: scale(1.05); }
.news-card__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,15,14,0.35));
  pointer-events: none;
}
.news-card__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 12px;
  font-weight: 700;
  color: var(--dark);
  background: var(--primary);
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}
.news-card__body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-sub);
  margin-bottom: 10px;
  font-family: var(--font-en);
}
.news-card__body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card__body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  transition: color .2s;
}
.news-card__link i { color: var(--primary); transition: transform .2s; }
.news-card:hover .news-card__link { color: var(--primary); }
.news-card:hover .news-card__link i { transform: translateX(4px); }
/* ========== 时间线 ========== */
.timeline-section { background: var(--white); border-bottom: 1px solid var(--border-light); }
.timeline-wrap { position: relative; padding: 12px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.timeline-item { position: relative; padding-top: 52px; }
.timeline-item::before {
  content: '';
  position: absolute;
  top: 1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  opacity: 0.25;
}
.timeline-item::after {
  content: '';
  position: absolute;
  top: -5px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-item__num {
  position: absolute;
  top: 12px;
  left: 0;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.timeline-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.timeline-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}
/* ========== CTA ========== */
.cta-section {
  background:
    linear-gradient(110deg, rgba(11,15,14,0.95), rgba(11,15,14,0.82)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color: var(--text-on-dark);
  text-align: center;
  padding: 92px 0;
}
.cta-section h2 {
  font-size: 34px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cta-section p {
  font-size: 17px;
  color: var(--text-on-dark-sub);
  max-width: 560px;
  margin: 0 auto 30px;
}
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
/* ========== FAQ ========== */
.faq-section { background: var(--light); }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open { border-color: rgba(0,229,122,0.5); }
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  text-align: left;
  transition: background .2s;
}
.faq-item__question:hover { background: rgba(0,229,122,0.04); }
.faq-item__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary);
  background: rgba(0,229,122,0.12);
  transition: transform .3s ease;
}
.faq-item.open .faq-item__icon { transform: rotate(45deg); background: var(--primary); color: var(--dark); }
.faq-item__answer {
  display: none;
  padding: 0 24px 22px 68px;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}
.faq-item.open .faq-item__answer { display: block; }
/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark);
  color: var(--text-on-dark-sub);
  border-top: 1px solid var(--border-dark);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 60px 0 44px;
}
.footer-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 21px;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-logo small {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-links h4, .footer-contact h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-links ul li, .footer-contact ul li {
  margin-bottom: 12px;
  font-size: 14px;
}
.footer-links ul li a { transition: color .2s; color: var(--text-on-dark-sub); }
.footer-links ul li a:hover { color: var(--primary); }
.footer-contact ul li { color: var(--text-on-dark-sub); }
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-on-dark-sub);
}
.footer-bottom .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
/* ========== 响应式 ========== */
@media (max-width: 1023px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border-dark);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }
  .nav-links.open { display: flex; }
  .nav-links > li { width: 100%; }
  .nav-links a.nav-item { display: block; padding: 12px 0; font-size: 16px; width: 100%; }
  .nav-links a.nav-item.active::after { display: none; }
  .nav-links a.nav-item.active { color: var(--primary); }
  .nav-mobile-cta { display: block; padding-top: 12px; margin-top: 8px; border-top: 1px solid var(--border-dark); }
  .nav-mobile-cta .btn { width: 100%; }
  .nav-actions .btn-primary { display: none; }
  .menu-toggle { display: inline-flex; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .timeline-wrap { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .cat-hero h1 { font-size: 38px; }
  .section { padding: 64px 0; }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 27px; }
  .feature-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { padding-left: 16px; }
  .stat-item__num { font-size: 30px; }
  .timeline-wrap { grid-template-columns: 1fr; }
  .timeline-item { padding-top: 46px; }
  .cat-hero { padding: 72px 0 64px; }
  .cat-hero h1 { font-size: 32px; }
  .cat-hero__desc { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .cta-section { padding: 72px 0; }
  .cta-section h2 { font-size: 28px; }
  .faq-item__question { font-size: 15px; padding: 18px 16px; }
  .faq-item__answer { padding: 0 16px 18px 56px; }
  .btn-lg { padding: 13px 24px; font-size: 15px; }
}
@media (min-width: 1024px) {
  .nav-links { display: flex; }
}

/* roulang page: article */
:root {
  --primary: #00E57A;
  --primary-2: #1AF28B;
  --primary-glow: rgba(0, 229, 122, 0.16);
  --accent: #FF6A2C;
  --accent-glow: rgba(255, 106, 44, 0.16);
  --dark: #0B0F0E;
  --dark-2: #131A17;
  --light: #F6F7F4;
  --white: #FFFFFF;
  --line: #E3E8E2;
  --line-dark: #262D29;
  --text-main: #1F2320;
  --text-muted: #5E6B63;
  --text-on-dark: #F2F5F2;
  --text-muted-dark: #A0AEA5;
  --radius-card: 16px;
  --radius-lg: 20px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 20, 0.06);
  --shadow-md: 0 6px 20px rgba(15, 23, 20, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
  --font-main: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "Inter", "Roboto Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-main);
  background: var(--light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

input {
  font-family: inherit;
}

ul,
ol {
  list-style: none;
}

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

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

/* ===== Header / Nav ===== */
.site-header {
  background: var(--dark);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line-dark);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 22px;
  color: var(--primary);
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.logo small {
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-on-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav-links a {
  color: var(--text-muted-dark);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-on-dark);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  color: var(--text-on-dark);
  font-size: 22px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: all 0.25s;
  cursor: pointer;
  line-height: 1.2;
  white-space: nowrap;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--dark);
  padding: 12px 24px;
}

.btn-primary:hover {
  background: var(--primary-2);
  box-shadow: 0 0 0 4px var(--primary-glow), 0 4px 16px var(--primary-glow);
}

.btn-outline {
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 12px 24px;
  background: transparent;
}

.btn-outline:hover {
  background: var(--primary-glow);
  color: var(--primary-2);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn:focus-visible {
  outline: 3px solid var(--primary-glow);
  outline-offset: 2px;
}

/* ===== Article Breadcrumb ===== */
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  padding: 24px 0 0;
  flex-wrap: wrap;
}

.article-breadcrumb a {
  color: var(--primary);
  font-weight: 500;
}

.article-breadcrumb a:hover {
  text-decoration: underline;
}

.article-breadcrumb i {
  font-size: 10px;
  color: #9AA69F;
}

.article-breadcrumb .current {
  color: var(--text-muted);
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Article Layout ===== */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) 300px;
  gap: 48px;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 72px;
  align-items: start;
}

.article-body {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}

.article-title {
  font-size: 34px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta .badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  background: rgba(0, 229, 122, 0.12);
  color: #00A85A;
}

/* ===== Article Prose ===== */
.article-prose {
  font-size: 16px;
  line-height: 1.85;
  color: #3A423C;
}

.article-prose h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--line);
  color: var(--text-main);
}

.article-prose h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 12px;
  color: var(--text-main);
}

.article-prose p {
  margin-bottom: 20px;
}

.article-prose a {
  color: #00A85A;
  font-weight: 500;
  border-bottom: 1px solid rgba(0, 229, 122, 0.3);
  transition: border-color 0.2s;
}

.article-prose a:hover {
  border-color: var(--primary);
}

.article-prose blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: rgba(0, 229, 122, 0.06);
  border-left: 4px solid var(--primary);
  border-radius: 0 12px 12px 0;
  color: var(--text-muted);
}

.article-prose blockquote p:last-child {
  margin-bottom: 0;
}

.article-prose img {
  border-radius: 12px;
  margin: 24px auto;
  width: auto;
  max-height: 480px;
  object-fit: cover;
}

.article-prose figure {
  margin: 28px 0;
}

.article-prose figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

.article-prose ul {
  list-style: disc;
  padding-left: 1.5em;
  margin-bottom: 20px;
}

.article-prose ol {
  list-style: decimal;
  padding-left: 1.5em;
  margin-bottom: 20px;
}

.article-prose li {
  margin-bottom: 8px;
  line-height: 1.75;
}

.article-prose pre {
  background: var(--dark);
  color: var(--text-on-dark);
  padding: 16px 20px;
  border-radius: 12px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  margin: 24px 0;
  line-height: 1.6;
}

.article-prose code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: rgba(0, 229, 122, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.article-prose pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

/* ===== Prev / Next ===== */
.post-prev-next {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.post-prev-next a {
  flex: 1;
  padding: 16px 18px;
  background: var(--light);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: all 0.2s;
}

.post-prev-next a:hover {
  border-color: var(--primary);
  background: rgba(0, 229, 122, 0.06);
  box-shadow: var(--shadow-sm);
}

.post-prev-next .label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.post-prev-next .title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

.post-prev-next .next {
  text-align: right;
}

/* ===== Sidebar ===== */
.article-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card h3 i {
  color: var(--primary);
  font-size: 15px;
}

.sidebar-cat-list li {
  margin-bottom: 4px;
}

.sidebar-cat-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-main);
  transition: background 0.2s, color 0.2s;
}

.sidebar-cat-list a:hover {
  background: rgba(0, 229, 122, 0.08);
  color: #00A85A;
}

.sidebar-cat-list a i {
  color: var(--text-muted);
  font-size: 12px;
}

.hot-list-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.hot-list-item:last-child {
  border-bottom: none;
}

.hot-list-item img {
  width: 72px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

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

.hot-list-info h4 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hot-list-info h4 a:hover {
  color: #00A85A;
}

.hot-list-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== Related ===== */
.related-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.related-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.related-heading h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.related-heading h2 span {
  color: var(--primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  display: flex;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 16px;
  transition: all 0.3s;
  align-items: flex-start;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.related-card img {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: 10px;
  flex-shrink: 0;
}

.related-info h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-info h3 a:hover {
  color: #00A85A;
}

.related-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== CTA ===== */
.cta-section {
  background: var(--dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  opacity: 0.7;
}

.cta-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 0 24px;
}

.cta-inner h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-on-dark);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.cta-inner p {
  color: var(--text-muted-dark);
  margin-bottom: 28px;
  font-size: 16px;
}

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

.cta-actions .btn-outline {
  color: var(--text-on-dark);
  border-color: var(--line-dark);
}

.cta-actions .btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-glow);
  color: var(--primary-2);
}

/* ===== Not Found ===== */
.not-found-wrap {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

.not-found-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-sm);
}

.not-found-card i {
  font-size: 52px;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: block;
}

.not-found-card h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.not-found-card p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: var(--text-muted-dark);
  border-top: 1px solid var(--line-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding: 64px 24px 48px;
}

.footer-logo {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.footer-logo small {
  font-family: var(--font-main);
  font-size: 13px;
  color: var(--text-on-dark);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 360px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin-bottom: 16px;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 10px;
  font-size: 14px;
}

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

.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
    max-width: 760px;
  }

  .article-sidebar {
    display: none;
  }
}

@media (max-width: 900px) {
  .nav-links {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 16px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid var(--line-dark);
    box-shadow: var(--shadow-lg);
    margin-left: 0;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links a::after {
    display: none;
  }

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

  .article-layout {
    padding: 24px 16px 56px;
    gap: 32px;
  }

  .article-body {
    padding: 24px 20px;
  }

  .article-title {
    font-size: 26px;
  }

  .related-section {
    padding: 0 16px 56px;
  }

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

  .related-card {
    padding: 14px;
  }

  .cta-section {
    padding: 56px 0;
  }

  .cta-inner h2 {
    font-size: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 24px 32px;
  }

  .post-prev-next {
    flex-direction: column;
  }

  .post-prev-next .next {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 18px;
  }

  .logo small {
    font-size: 12px;
  }

  .nav-wrap {
    height: 64px;
  }

  .nav-links {
    top: 64px;
  }

  .btn-sm {
    padding: 7px 14px;
    font-size: 13px;
  }

  .article-breadcrumb {
    font-size: 12px;
    padding-top: 16px;
  }

  .article-breadcrumb .current {
    max-width: 160px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .article-title {
    font-size: 22px;
  }

  .article-meta {
    gap: 12px;
    font-size: 12px;
  }

  .article-prose h2 {
    font-size: 21px;
  }

  .article-prose h3 {
    font-size: 18px;
  }

  .related-card {
    flex-direction: row;
  }

  .related-card img {
    width: 96px;
    height: 72px;
  }

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

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

/* roulang page: category2 */
:root {
            --color-primary: #00E57A;
            --color-primary-hover: #1FF58E;
            --color-secondary: #FF6A2C;
            --color-dark: #0B0F0E;
            --color-dark-2: #141A17;
            --color-light: #F6F7F4;
            --color-white: #FFFFFF;
            --color-border: #E3E8E2;
            --color-border-dark: #262D29;
            --color-text: #1F2320;
            --color-text-sub: #5E6B63;
            --color-text-on-dark: #F2F5F2;
            --color-text-sub-dark: #A0AEA5;
            --font-main: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            --font-mono: Inter, "Roboto Mono", monospace;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 2px 8px rgba(15, 23, 20, 0.06);
            --shadow-card-hover: 0 10px 28px rgba(15, 23, 20, 0.12);
            --shadow-dark: 0 8px 24px rgba(0, 0, 0, 0.3);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: var(--color-light);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        button {
            border: none;
            cursor: pointer;
            font-family: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 15, 14, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border-dark);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 4px;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0.02em;
            color: var(--color-text-on-dark);
        }
        .logo small {
            font-family: var(--font-main);
            font-weight: 600;
            font-size: 13px;
            color: var(--color-primary);
            background: rgba(0, 229, 122, 0.12);
            padding: 2px 8px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-sub-dark);
            padding: 6px 2px;
            position: relative;
            transition: color 0.2s;
        }
        .nav-links a:hover {
            color: var(--color-text-on-dark);
        }
        .nav-links a.active {
            color: var(--color-text-on-dark);
        }
        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--color-primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .menu-toggle {
            display: none;
            background: transparent;
            color: var(--color-text-on-dark);
            font-size: 20px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1.2;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #071310;
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            box-shadow: 0 0 24px rgba(0, 229, 122, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: var(--color-text-on-dark);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-text-on-dark);
        }
        .btn-outline-dark {
            border: 1px solid rgba(31, 35, 32, 0.25);
            color: var(--color-text);
            background: transparent;
        }
        .btn-outline-dark:hover {
            background: rgba(0, 229, 122, 0.08);
            border-color: var(--color-primary);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* Hero */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 15, 14, 0.94) 20%, rgba(11, 15, 14, 0.72) 65%, rgba(11, 15, 14, 0.45) 100%);
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -30px;
            width: 300px;
            height: 180px;
            border: 2px dashed rgba(0, 229, 122, 0.25);
            border-radius: 50%;
            transform: rotate(-12deg);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 56px;
            align-items: center;
            padding: 80px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 229, 122, 0.12);
            border: 1px solid rgba(0, 229, 122, 0.3);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            color: var(--color-text-on-dark);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .hero h1 .accent {
            color: var(--color-primary);
        }
        .hero-desc {
            font-size: 16px;
            color: var(--color-text-sub-dark);
            max-width: 480px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* Hero status card */
        .login-status-card {
            background: rgba(20, 26, 23, 0.85);
            border: 1px solid var(--color-border-dark);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-dark);
        }
        .status-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .status-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 12px var(--color-primary);
        }
        .status-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-sub-dark);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .status-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 18px;
        }
        .status-row {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-sub-dark);
            padding: 8px 0;
            border-top: 1px solid var(--color-border-dark);
        }
        .status-row span:last-child {
            color: var(--color-text-on-dark);
            font-weight: 600;
            font-family: var(--font-mono);
        }

        /* Section */
        .section {
            padding: 88px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--color-secondary);
            letter-spacing: 0.1em;
            margin-bottom: 12px;
        }
        .section h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--color-text);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-sub);
            max-width: 640px;
            margin-bottom: 44px;
        }
        .section.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        .section.center {
            text-align: center;
        }

        /* Login method cards */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
            position: relative;
            overflow: hidden;
        }
        .method-card::after {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 72px;
            height: 72px;
            background: radial-gradient(circle at top right, rgba(0, 229, 122, 0.08), transparent 70%);
        }
        .method-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0, 229, 122, 0.4);
        }
        .method-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #071310;
            background: var(--color-primary);
            margin-bottom: 20px;
        }
        .method-icon.orange {
            background: var(--color-secondary);
        }
        .method-icon.dark {
            background: var(--color-dark);
            color: var(--color-primary);
        }
        .method-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .method-card p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.65;
        }
        .method-tag {
            display: inline-block;
            margin-top: 16px;
            font-size: 12px;
            font-weight: 700;
            color: var(--color-secondary);
            background: rgba(255, 106, 44, 0.1);
            padding: 3px 10px;
            border-radius: 999px;
        }

        /* Timeline */
        .timeline-section {
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .timeline-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            counter-reset: step;
            position: relative;
        }
        .timeline-grid::before {
            content: "";
            position: absolute;
            top: 28px;
            left: 6%;
            right: 6%;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--color-primary) 0 8px, transparent 8px 16px);
            opacity: 0.6;
        }
        .timeline-item {
            position: relative;
            padding-top: 20px;
        }
        .timeline-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-dark);
            border: 3px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 6px rgba(0, 229, 122, 0.08);
        }
        .timeline-item:nth-child(odd) .timeline-num {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
            box-shadow: 0 0 0 6px rgba(255, 106, 44, 0.08);
        }
        .timeline-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.6;
        }

        /* Security block */
        .security-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .security-img {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
        }
        .security-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .security-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .security-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 14px;
            padding: 18px 20px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .security-item:hover {
            border-color: rgba(0, 229, 122, 0.35);
            box-shadow: var(--shadow-card);
        }
        .security-item i {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: rgba(0, 229, 122, 0.12);
            color: #079A4E;
        }
        .security-item h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 3px;
        }
        .security-item p {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.55;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 820px;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 22px 0;
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-light);
            border: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-text-sub);
            transition: transform 0.3s, background 0.3s, color 0.3s;
        }
        .faq-question span {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            flex: 1;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #071310;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding-left: 50px;
            padding-right: 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--color-text-sub);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
            padding: 88px 0;
            text-align: center;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            left: -60px;
            width: 220px;
            height: 220px;
            border: 2px dashed rgba(0, 229, 122, 0.2);
            border-radius: 50%;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -30px;
            width: 260px;
            height: 260px;
            border: 2px dashed rgba(255, 106, 44, 0.18);
            border-radius: 50%;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text-on-dark);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .cta-content p {
            font-size: 16px;
            color: var(--color-text-sub-dark);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark);
            border-top: 1px solid var(--color-border-dark);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 56px;
            padding-bottom: 48px;
        }
        .footer-logo {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text-on-dark);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 14px;
        }
        .footer-logo small {
            font-family: var(--font-main);
            font-size: 13px;
            color: var(--color-primary);
            background: rgba(0, 229, 122, 0.12);
            padding: 2px 8px;
            border-radius: 999px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-sub-dark);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-links h4,
        .footer-contact h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 16px;
        }
        .footer-links ul,
        .footer-contact ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--color-text-sub-dark);
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-contact li {
            font-size: 14px;
            color: var(--color-text-sub-dark);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--color-text-sub-dark);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero {
                min-height: auto;
            }
            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .timeline-grid::before {
                display: none;
            }
            .security-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
            .nav-links {
                position: fixed;
                top: 72px;
                right: -280px;
                width: 280px;
                height: calc(100vh - 72px);
                background: var(--color-dark-2);
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 28px;
                gap: 22px;
                transition: right 0.3s ease;
                box-shadow: -8px 0 30px rgba(0, 0, 0, 0.4);
                border-left: 1px solid var(--color-border-dark);
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                font-size: 17px;
            }
            .nav-links a.active::after {
                bottom: -4px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-actions .btn-primary.btn-sm {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .hero h1 {
                font-size: 36px;
            }
            .hero-content {
                padding: 56px 16px;
            }
            .section {
                padding: 64px 0;
            }
            .section h2 {
                font-size: 28px;
            }
            .method-grid {
                grid-template-columns: 1fr;
            }
            .timeline-grid {
                grid-template-columns: 1fr;
            }
            .timeline-num {
                width: 48px;
                height: 48px;
                font-size: 16px;
            }
            .cta-content h2 {
                font-size: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }
            .status-row {
                font-size: 12px;
            }
        }
        @media (min-width: 1024px) {
            .hero h1 {
                font-size: 52px;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #00E57A;
  --primary-bright: #27F794;
  --accent: #FF6A2C;
  --dark: #0B0F0E;
  --dark-2: #131A16;
  --light: #F6F7F4;
  --white: #FFFFFF;
  --border-light: #E3E8E2;
  --border-dark: #262D29;
  --text-dark: #1F2320;
  --text-gray: #5E6B63;
  --text-light: #F2F5F2;
  --text-dim: #A0AEA5;
  --teal: #3E8376;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-lg: 20px;
  --shadow-card: 0 2px 8px rgba(15, 23, 20, 0.06);
  --shadow-hover: 0 8px 24px rgba(15, 23, 20, 0.10);
  --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "Inter", "Roboto Mono", "SFMono-Regular", monospace;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--light);
  color: var(--text-dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 84px 0;
}
.section-alt {
  background: var(--white);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-gray);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  padding: 13px 24px;
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #08130D;
}
.btn-primary:hover {
  background: var(--primary-bright);
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.35);
  transform: translateY(-2px);
}
.btn-outline {
  border: 1px solid rgba(0, 229, 122, 0.55);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(0, 229, 122, 0.10);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
}
.badge-outline {
  border: 1px solid rgba(0, 229, 122, 0.45);
  color: var(--primary);
  background: rgba(11, 15, 14, 0.5);
}
.badge-soft {
  background: rgba(0, 229, 122, 0.15);
  color: #008F4C;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 14, 0.97);
  border-bottom: 1px solid var(--border-dark);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: baseline;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.4px;
  color: var(--text-light);
  line-height: 1;
}
.logo small {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  margin-left: 6px;
  letter-spacing: 0.2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  display: block;
  padding: 9px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dim);
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav-links a:hover {
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.06);
}
.nav-links a.active {
  color: var(--primary);
  background: rgba(0, 229, 122, 0.12);
  font-weight: 700;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: var(--text-light);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-dark);
  transition: background 0.2s;
}
.menu-toggle:hover { background: rgba(255, 255, 255, 0.06); }

/* Page Hero */
.page-hero {
  position: relative;
  background-color: var(--dark);
  background-image: linear-gradient(180deg, rgba(11, 15, 14, 0.86) 0%, rgba(11, 15, 14, 0.94) 100%), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 108px 0 96px;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-dark);
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 60%, transparent 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
}
.hero-inner h1 {
  font-size: 48px;
  font-weight: 900;
  color: var(--text-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 18px 0 14px;
}
.hero-inner p {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* Stats Band */
.stats-band {
  position: relative;
  z-index: 3;
  margin-top: -36px;
  margin-bottom: 8px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.stat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.stat-number {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 13px;
  color: var(--text-gray);
  font-weight: 500;
}

/* Methods Section */
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.method-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.method-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0, 229, 122, 0.35);
}
.method-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 122, 0.12);
  color: #008F4C;
  font-size: 22px;
  margin-bottom: 20px;
}
.method-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
}
.method-card p {
  font-size: 14px;
  color: var(--text-gray);
}

/* Scenario Section */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scenario-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.scenario-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #E7EBE5;
}
.scenario-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.scenario-card:hover .scenario-img img {
  transform: scale(1.03);
}
.scenario-body {
  padding: 24px;
}
.scenario-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.scenario-body p {
  font-size: 14px;
  color: var(--text-gray);
}

/* Flow Section */
.flow-section {
  background: var(--dark);
  color: var(--text-light);
  border-top: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-dark);
}
.flow-section .section-head h2 {
  color: var(--text-light);
}
.flow-section .section-head p {
  color: var(--text-dim);
}
.flow-steps {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
}
.flow-step {
  flex: 1;
  max-width: 260px;
  text-align: center;
  padding: 36px 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-card);
  position: relative;
}
.flow-number {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  color: rgba(0, 229, 122, 0.55);
  display: block;
  margin-bottom: 16px;
}
.flow-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-light);
}
.flow-step p {
  font-size: 14px;
  color: var(--text-dim);
}
.flow-line {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  color: var(--primary);
  font-size: 22px;
  flex-shrink: 0;
}

/* Security Section */
.security-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  max-width: 860px;
  margin: 0 auto;
  overflow: hidden;
}
.security-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 26px 28px;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.2s;
}
.security-row:last-child {
  border-bottom: none;
}
.security-row:hover {
  background: #FAFBF8;
}
.security-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(0, 229, 122, 0.10);
  color: #008F4C;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.security-info {
  flex: 1;
}
.security-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 2px;
}
.security-info p {
  font-size: 14px;
  color: var(--text-gray);
}
.security-status {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(62, 131, 118, 0.10);
  color: var(--teal);
  border: 1px solid rgba(62, 131, 118, 0.25);
}

/* FAQ Section */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.faq-list {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--border-light);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  transition: background 0.2s;
}
.faq-question:hover {
  background: #FAFBF8;
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 229, 122, 0.12);
  color: #008F4C;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  transition: transform 0.25s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 260px;
}
.faq-answer p {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.75;
}

/* CTA Band */
.cta-band {
  background: var(--dark);
  padding: 90px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-dark);
}
.cta-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 70%, transparent 100%);
}
.cta-inner {
  position: relative;
  z-index: 2;
}
.cta-inner h2 {
  font-size: 34px;
  font-weight: 900;
  color: var(--text-light);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.cta-inner p {
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: var(--text-dim);
  border-top: 1px solid var(--border-dark);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding: 64px 24px 40px;
}
.footer-logo {
  display: flex;
  align-items: baseline;
  font-size: 22px;
  font-weight: 900;
  color: var(--text-light);
  margin-bottom: 14px;
}
.footer-logo small {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  margin-left: 6px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 320px;
}
.footer-grid h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 16px;
}
.footer-grid ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-grid ul li {
  font-size: 14px;
}
.footer-grid ul a {
  transition: color 0.2s;
}
.footer-grid ul a:hover {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-wrap { padding: 0 20px; }
  .method-grid, .scenario-grid, .stats-grid { gap: 16px; }
  .footer-grid { gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 28px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--dark);
    border-bottom: 1px solid var(--border-dark);
    padding: 12px 20px 20px;
    gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; font-size: 16px; }
  .menu-toggle { display: flex; }
  .nav-actions .btn { display: none; }
  .hero-inner h1 { font-size: 34px; }
  .hero-inner p { font-size: 15px; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-number { font-size: 26px; }
  .stat-card { padding: 20px 12px; }
  .method-grid, .scenario-grid { grid-template-columns: 1fr 1fr; }
  .flow-steps { flex-direction: column; align-items: center; gap: 16px; }
  .flow-step { width: 100%; max-width: 420px; }
  .flow-line { width: 100%; padding: 0; transform: rotate(90deg); height: 40px; }
  .security-row { flex-wrap: wrap; padding: 22px 20px; }
  .security-status { margin-left: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; padding: 48px 20px 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .cta-inner h2 { font-size: 28px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .nav-wrap { height: 60px; padding: 0 16px; }
  .nav-links { top: 60px; }
  .hero-inner h1 { font-size: 28px; }
  .hero-inner p { font-size: 14px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card:last-child { grid-column: 1 / -1; }
  .method-grid, .scenario-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .cta-inner h2 { font-size: 24px; }
}