/* roulang page: index */
:root {
  --bg-body: #0A0E17;
  --bg-panel: #111822;
  --bg-panel-2: #1A2332;
  --bg-input: #0D1420;
  --primary: #8B5CF6;
  --primary-strong: #A78BFA;
  --primary-soft: rgba(139, 92, 246, .12);
  --accent: #2DD4BF;
  --accent-soft: rgba(45, 212, 191, .12);
  --warning: #F59E0B;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(148, 163, 184, .14);
  --radius-card: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, .25);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, .4);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-1);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-strong); }
button, input, select { font-family: inherit; font-size: inherit; }
button { cursor: pointer; }
input, select { font-variant-numeric: tabular-nums; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section-title {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.5px;
  margin-bottom: 12px;
}
.section-sub { color: var(--text-2); font-size: 15px; max-width: 680px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  padding: 0 28px;
  height: 44px;
  border: 1px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(139, 92, 246, .25);
}
.btn-primary:hover {
  background: var(--primary-strong);
  color: #fff;
  box-shadow: 0 6px 28px rgba(139, 92, 246, .4);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(139, 92, 246, .3); }
.btn-secondary {
  background: transparent;
  color: var(--text-1);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: rgba(139, 92, 246, .1);
  color: var(--text-1);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, .2);
}
.btn-secondary:active { background: rgba(139, 92, 246, .18); }
.btn-lg { height: 48px; padding: 0 34px; font-size: 16px; }
.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; box-shadow: none; transform: none; }

/* Header / Nav */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 16px;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(17, 24, 34, .85);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .2px;
  flex-shrink: 0;
}
.logo:hover { color: var(--text-1); }
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(139, 92, 246, .35);
}
.logo-text { white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  position: relative;
  transition: background .2s ease, color .2s ease;
}
.nav-link svg { flex-shrink: 0; opacity: .8; }
.nav-link:hover { background: var(--primary-soft); color: var(--text-1); }
.nav-link.active { background: var(--primary-soft); color: var(--primary-strong); }
.nav-link.active::after {
  content: '';
  position: absolute;
  top: 7px;
  right: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(45, 212, 191, .6);
}
.nav-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  color: var(--text-1);
  align-items: center;
  justify-content: center;
  margin-left: auto;
  flex-shrink: 0;
  transition: all .2s ease;
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary-strong); }
.nav-toggle:focus-visible, .nav-link:focus-visible, .btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(45, 212, 191, .25);
}
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  z-index: 99;
  font-weight: 700;
}

/* Hero */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--bg-body) url('/assets/images/backpic/back-1.webp') no-repeat center / cover;
  overflow: hidden;
  text-align: center;
  padding: 90px 0 70px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(139, 92, 246, .28), transparent 62%);
  z-index: 1;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -120px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(45, 212, 191, .16), transparent 62%);
  z-index: 1;
  pointer-events: none;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(148, 163, 184, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .045) 1px, transparent 1px);
  background-size: 60px 60px;
  background-color: rgba(10, 14, 23, .58);
  z-index: 1;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  padding: 0 20px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  border: 1px solid rgba(139, 92, 246, .25);
  color: var(--primary-strong);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 28px;
  letter-spacing: .3px;
}
.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(45, 212, 191, .7);
}
.hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.5px;
  color: #fff;
  margin-bottom: 20px;
}
.hero h1 .text-gradient {
  background: linear-gradient(100deg, #fff 20%, var(--primary-strong) 55%, var(--accent) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: clamp(32px, 6vw, 72px);
  justify-content: center;
  margin-top: clamp(44px, 6vw, 68px);
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  display: block;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.stat-label { font-size: 13px; color: var(--text-2); margin-top: 4px; display: block; }

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 44px;
}
.step-card {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 34px 28px 28px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, .4);
  box-shadow: var(--shadow-hover);
}
.step-num {
  display: block;
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text-1); }
.step-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }
@media (min-width: 992px) {
  .step-card:not(:last-child)::before {
    content: '';
    position: absolute;
    right: -24px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    border-top: 2px dashed rgba(148, 163, 184, .4);
    z-index: 2;
  }
  .step-card:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -26px;
    top: calc(50% - 6px);
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left: 7px solid var(--primary);
    z-index: 2;
  }
}

/* Cases */
.cases { background: var(--bg-panel); }
.cases-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 48px;
  align-items: center;
}
.cases-intro .section-sub { margin-bottom: 24px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.case-tags li {
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(139, 92, 246, .2);
}
.cases-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case-card {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 22px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(139, 92, 246, .3);
}
.case-logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 14px;
  border: 1px solid var(--border);
}
.case-logo img { width: 100%; height: 100%; object-fit: cover; }
.case-card h3 { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 6px; }
.case-card > p { font-size: 13px; color: var(--text-2); line-height: 1.65; margin-bottom: 14px; }
.case-data { display: flex; gap: 16px; margin-bottom: 12px; }
.case-data span { font-size: 12px; color: var(--text-3); }
.case-data big {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.case-meta {
  display: block;
  font-size: 12px;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

/* News */
.news-layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 24px;
  margin-top: 44px;
  align-items: start;
}
.news-feature {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(139, 92, 246, .3);
}
.news-feature-media { position: relative; overflow: hidden; }
.news-feature-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .3s ease;
}
.news-feature:hover .news-feature-media img { transform: scale(1.03); }
.news-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(139, 92, 246, .85);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.news-feature-body { padding: 24px; }
.news-feature-body h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-1);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}
.news-feature:hover .news-feature-body h3 { color: var(--primary-strong); }
.news-feature-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.news-meta { font-size: 13px; color: var(--text-3); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  display: flex;
  gap: 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  align-items: center;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(139, 92, 246, .35);
}
.news-thumb {
  width: 120px;
  height: 84px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-item-body { min-width: 0; }
.news-item-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 6px;
  transition: color .2s ease;
}
.news-item:hover .news-item-body h4 { color: var(--primary-strong); }
.news-tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}
.news-time { font-size: 12px; color: var(--text-3); vertical-align: middle; }
.news-empty {
  margin-top: 44px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 64px 24px;
  text-align: center;
}
.news-empty-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.news-empty p:first-of-type { font-size: 15px; font-weight: 600; color: var(--text-2); }
.news-empty p:last-of-type { font-size: 13px; color: var(--text-3); margin-top: 6px; }

/* FAQ */
.faq-panel {
  margin-top: 44px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text-1);
  font-size: 15px;
  font-weight: 600;
  padding: 0 24px;
  text-align: left;
  transition: background .2s ease, color .2s ease;
}
.faq-question:hover { background: var(--primary-soft); color: var(--text-1); }
.faq-icon {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform .25s ease, border-color .25s ease;
  flex-shrink: 0;
  margin-top: -4px;
}
.faq-item.open .faq-icon {
  transform: rotate(-135deg);
  margin-top: 4px;
  border-color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
}

/* CTA */
.cta { position: relative; overflow: hidden; }
.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(139, 92, 246, .14), transparent 55%),
    radial-gradient(ellipse at 80% 20%, rgba(45, 212, 191, .10), transparent 50%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  background: rgba(17, 24, 34, .9);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px 48px;
  text-align: center;
  backdrop-filter: blur(10px);
}
.cta-inner .section-sub { margin: 0 auto; }
.apply-form {
  max-width: 680px;
  margin: 36px auto 0;
  text-align: left;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 6px;
}
.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-1);
  font-size: 15px;
  transition: all .2s ease;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input::placeholder { color: var(--text-3); }
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, .15);
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 44px;
  cursor: pointer;
}
.form-error { display: none; font-size: 13px; color: #F43F5E; margin-top: 6px; }
.form-group.has-error input { border-color: #F43F5E; }
.form-group.has-error .form-error { display: block; }
.form-group.success input { border-color: rgba(45, 212, 191, .6); }
.apply-form .btn { margin-top: 8px; }

/* Footer */
.site-footer {
  background: #060910;
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand .logo-mark { width: 32px; height: 32px; font-size: 15px; border-radius: 9px; }
.footer-brand .logo-text { font-size: 16px; }
.footer-brand p { font-size: 13px; color: var(--text-3); line-height: 1.7; max-width: 280px; }
.footer-copy { margin-top: 18px; font-size: 12px; color: var(--text-3); }
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 16px;
  letter-spacing: .3px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  padding: 5px 0;
  transition: color .2s ease;
}
.footer-col a:hover { color: var(--primary-strong); }
.footer-col p { font-size: 13px; color: var(--text-2); padding: 5px 0; line-height: 1.7; }

/* Responsive */
@media (max-width: 1200px) {
  .container { padding: 0 20px; }
}
@media (max-width: 992px) {
  .news-layout { grid-template-columns: 1fr; }
  .cases-layout { grid-template-columns: 1fr; gap: 36px; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .site-header { top: 10px; padding: 0 12px; }
  .nav-wrap { height: 58px; padding: 0 14px; }
  .logo-text { font-size: 15px; }
  .logo-mark { width: 32px; height: 32px; font-size: 15px; }
  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--bg-body);
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 12px;
    padding: 40px 32px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-link {
    height: 54px;
    font-size: 16px;
    padding: 0 24px;
    border-radius: 12px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
  }
  .nav-link.active { background: var(--primary-soft); }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-cta { display: inline-flex; }
  .cta-inner { padding: 40px 28px; }
  .form-row { grid-template-columns: 1fr; gap: 16px; margin-bottom: 16px; }
  .form-group { margin-bottom: 0; }
  .steps-grid { grid-template-columns: 1fr; gap: 20px; }
  .step-card { padding: 28px 24px; }
  .cases-grid { grid-template-columns: 1fr; gap: 16px; }
  .hero { min-height: 92vh; padding: 80px 0 60px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; }
  .hero-stats { gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-item { align-items: flex-start; }
  .news-thumb { width: 100px; height: 72px; }
  body { padding-bottom: 72px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 14px; }
  .nav-wrap { padding: 0 12px; gap: 10px; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 26px; }
  .news-feature-body { padding: 18px; }
  .news-feature-body h3 { font-size: 18px; }
  .cta-inner { padding: 32px 20px; border-radius: 18px; }
  .faq-question { padding: 0 18px; font-size: 14px; }
  .faq-answer p { padding: 0 18px 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand p { max-width: 100%; }
}

/* roulang page: category1 */
:root {
  --bg-body: #0A0E17;
  --bg-panel: #111822;
  --bg-panel-2: #1A2332;
  --bg-input: #0D1420;
  --primary: #8B5CF6;
  --primary-strong: #A78BFA;
  --primary-soft: rgba(139, 92, 246, 0.12);
  --accent: #2DD4BF;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --warning: #F59E0B;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(148, 163, 184, 0.14);
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.4);
  --shadow-primary: 0 4px 20px rgba(139, 92, 246, 0.25);
  --shadow-primary-hover: 0 6px 28px rgba(139, 92, 246, 0.4);
  --transition: 0.2s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-body);
  color: var(--text-1);
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-strong); }
img { max-width: 100%; display: block; }
button, input, select { font-family: inherit; font-size: inherit; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: clamp(56px, 8vw, 96px) 0; }

/*========== Buttons ==========*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 24px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover { background: var(--primary-strong); color: #fff; box-shadow: var(--shadow-primary-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(139, 92, 246, 0.3); }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; box-shadow: 0 0 0 3px var(--accent-soft); }
.btn-secondary {
  background: transparent;
  border-color: var(--primary);
  color: var(--text-1);
}
.btn-secondary:hover { background: var(--primary-soft); color: #fff; }
.btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 15px 34px; font-size: 16px; height: 48px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; box-shadow: none; transform: none; }
.btn[disabled]:hover { background: var(--primary); box-shadow: none; transform: none; }

/*========== Header / Nav ==========*/
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 20px;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(17, 24, 34, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-1);
  flex-shrink: 0;
}
.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #6D28D9 100%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}
.logo-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-1);
}
.logo:hover .logo-text { color: var(--primary-strong); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  position: relative;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link svg { flex-shrink: 0; opacity: 0.9; }
.nav-link:hover { background: var(--primary-soft); color: var(--text-1); }
.nav-link.active { background: var(--primary-soft); color: var(--primary-strong); }
.nav-link.active::after {
  content: "";
  position: absolute;
  top: 5px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.nav-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-1);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary-strong); }
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/*========== Breadcrumb ==========*/
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-3); }
.breadcrumb a:hover { color: var(--primary-strong); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--text-1); }

/*========== Cat Hero ==========*/
.cat-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 60px 0 70px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.cat-hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to bottom, rgba(10, 14, 23, 0.78), rgba(10, 14, 23, 0.92)),
    url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
}
.cat-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 85% 10%, rgba(139, 92, 246, 0.28), transparent 70%),
    radial-gradient(500px 260px at 10% 90%, rgba(45, 212, 191, 0.16), transparent 70%);
  pointer-events: none;
}
.cat-hero-inner { position: relative; z-index: 2; width: 100%; }
.cat-hero h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  color: var(--text-1);
}
.cat-hero-sub {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
  max-width: 620px;
}

/*========== Section Head ==========*/
.section-head { margin-bottom: 42px; }
.section-head h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 10px;
}
.section-head p { color: var(--text-2); font-size: 15px; max-width: 640px; }

/*========== Cap Cards ==========*/
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.cap-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.cap-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: var(--shadow-hover);
}
.cap-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.cap-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.cap-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
}

/*========== Policy Section ==========*/
.policy-section {
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.policy-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.policy-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  position: relative;
  aspect-ratio: 4/3;
  background: var(--bg-panel-2);
}
.policy-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.policy-media:hover img { transform: scale(1.03); }
.policy-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.35), transparent 50%);
  pointer-events: none;
}
.policy-content h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}
.policy-content > p {
  color: var(--text-2);
  font-size: 15px;
  margin-bottom: 28px;
}
.policy-points { display: flex; flex-direction: column; gap: 22px; }
.policy-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.point-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.policy-point h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.policy-point p { font-size: 14px; color: var(--text-2); line-height: 1.75; }

/*========== Banner CTA ==========*/
.banner-cta {
  position: relative;
  background: var(--bg-panel-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.banner-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(500px 220px at 15% 50%, rgba(139, 92, 246, 0.22), transparent 70%),
    radial-gradient(420px 200px at 90% 50%, rgba(45, 212, 191, 0.12), transparent 70%);
  pointer-events: none;
}
.banner-inner {
  position: relative;
  padding: 56px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.banner-inner h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin-bottom: 6px;
}
.banner-inner p { color: var(--text-2); font-size: 14px; }

/*========== FAQ ==========*/
.faq-wrap { max-width: 900px; margin: 0 auto; }
.faq-list {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 16px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition), color var(--transition);
  min-height: 56px;
}
.faq-q:hover { background: var(--bg-panel-2); color: var(--primary-strong); }
.faq-q:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.faq-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform var(--transition), border-color var(--transition);
  flex-shrink: 0;
  margin-top: -6px;
}
.faq-item.open .faq-arrow {
  transform: rotate(225deg);
  border-color: var(--accent);
  margin-top: 6px;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  border-top: 0 solid var(--border);
}
.faq-item.open .faq-a { max-height: 300px; border-top-width: 1px; }
.faq-a p {
  padding: 18px 24px 22px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/*========== Apply Form ==========*/
.apply-section {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0;
  background:
    radial-gradient(600px 260px at 20% 50%, rgba(139, 92, 246, 0.15), transparent 70%),
    radial-gradient(500px 240px at 85% 30%, rgba(45, 212, 191, 0.1), transparent 70%);
  border-top: 1px solid var(--border);
}
.apply-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(26px, 4vw, 44px);
  box-shadow: var(--shadow-card);
  max-width: 860px;
  margin: 0 auto;
}
.apply-head { text-align: center; margin-bottom: 34px; }
.apply-head h2 { font-size: clamp(24px, 3.2vw, 32px); font-weight: 700; margin-bottom: 8px; }
.apply-head p { color: var(--text-2); font-size: 14px; }
.apply-form { display: flex; flex-direction: column; gap: 20px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; color: var(--text-2); }
.form-group input,
.form-group select {
  height: 44px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 0 14px;
  font-size: 15px;
  color: var(--text-1);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 42px;
  cursor: pointer;
}
.form-group select option { background: var(--bg-panel-2); color: var(--text-1); }
.form-group input::placeholder { color: var(--text-3); }
.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-group input.error {
  border-color: #F43F5E;
  box-shadow: 0 0 0 3px rgba(244, 63, 94, 0.15);
}
.form-error {
  display: none;
  font-size: 13px;
  color: #F43F5E;
  margin-top: 2px;
}
.apply-form .btn {
  align-self: center;
  min-width: 160px;
  margin-top: 8px;
}

/*========== Footer ==========*/
.site-footer {
  background: #060910;
  border-top: 1px solid var(--border);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  margin-top: 14px;
}
.footer-copy {
  color: var(--text-3) !important;
  font-size: 13px !important;
  margin-top: 22px !important;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 18px;
}
.footer-col a,
.footer-col p {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 10px;
  line-height: 1.7;
}
.footer-col a:hover { color: var(--primary-strong); }

/*========== Responsive ==========*/
@media (max-width: 1200px) {
  .nav-wrap { max-width: 100%; }
}
@media (max-width: 992px) {
  .policy-wrap { grid-template-columns: 1fr; gap: 36px; }
  .policy-media { max-width: 560px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .site-header { top: 10px; }
  .nav-wrap { height: 60px; padding: 0 14px; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 78px;
    left: 16px;
    right: 16px;
    background: rgba(17, 24, 34, 0.98);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px;
    gap: 6px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    margin: 0;
    z-index: 99;
  }
  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-link {
    height: 44px;
    width: 100%;
    padding: 0 16px;
    font-size: 14px;
    border-radius: 10px;
  }
  .form-row { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .banner-inner { flex-direction: column; align-items: flex-start; }
  .banner-inner .btn { width: 100%; }
  .cat-hero { min-height: 280px; padding: 48px 0 56px; }
}
@media (min-width: 769px) {
  .main-nav { display: flex !important; opacity: 1 !important; visibility: visible !important; transform: none !important; position: static; background: none; border: none; box-shadow: none; padding: 0; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-brand p { margin-top: 10px; }
  .logo-text { font-size: 15px; }
  .cap-card { padding: 20px 18px; }
  .apply-card { padding: 22px 18px; }
  .faq-q { padding: 14px 18px; font-size: 14px; }
  .faq-a p { padding: 16px 18px 18px; }
}

/* roulang page: article */
:root {
  --bg-body: #0A0E17;
  --bg-panel: #111822;
  --bg-panel-2: #1A2332;
  --bg-input: #0D1420;
  --primary: #8B5CF6;
  --primary-strong: #A78BFA;
  --primary-soft: rgba(139,92,246,0.12);
  --accent: #2DD4BF;
  --accent-soft: rgba(45,212,191,0.12);
  --warning: #F59E0B;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(148,163,184,0.14);
  --radius-card: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,.25);
  --shadow-hover: 0 16px 40px rgba(0,0,0,.4);
  --container-w: 1200px;
  --transition: all .2s ease;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-body);
  color: var(--text-1);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-strong); text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: 14px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }
::selection { background: rgba(139,92,246,.35); color: #fff; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: var(--transition);
  text-decoration: none;
  border-radius: var(--radius-pill);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 12px 24px;
  font-size: 16px;
  box-shadow: 0 4px 20px rgba(139,92,246,.25);
}
.btn-primary:hover {
  background: var(--primary-strong);
  box-shadow: 0 6px 28px rgba(139,92,246,.4);
  transform: translateY(-1px);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid var(--primary);
  padding: 12px 24px;
  font-size: 16px;
}
.btn-secondary:hover {
  background: rgba(139,92,246,.1);
  color: #fff;
  transform: translateY(-1px);
}
.btn-sm { height: 36px; padding: 0 18px; font-size: 13px; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; box-shadow: 0 0 0 3px rgba(45,212,191,.2); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 20px;
}
.nav-wrap {
  max-width: var(--container-w);
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(17,24,34,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 22px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(139,92,246,.35);
}
.logo-text { font-size: 18px; font-weight: 700; color: var(--text-1); letter-spacing: .5px; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 13px;
  border-radius: 10px;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav-link svg { flex-shrink: 0; opacity: .8; }
.nav-link:hover { background: var(--primary-soft); color: var(--text-1); }
.nav-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nav-link.active { color: var(--primary-strong); background: var(--primary-soft); }
.nav-link.active::after {
  content: '';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(45,212,191,.6);
}
.nav-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-1);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  padding: 0;
}
.nav-toggle:hover { background: var(--primary-soft); border-color: var(--primary); }
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 28px;
}
.breadcrumb a { color: var(--text-3); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); margin: 0 2px; }
.breadcrumb .current { color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 320px; }

.article-header {
  position: relative;
  padding: clamp(32px, 6vw, 64px) 0 24px;
  overflow: hidden;
}
.article-header::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(139,92,246,.16), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.article-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: .06;
  -webkit-mask-image: radial-gradient(ellipse at top, black, transparent 75%);
  mask-image: radial-gradient(ellipse at top, black, transparent 75%);
  pointer-events: none;
}
.article-header .inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}
.article-title {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-1);
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-3); }

.article-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}
.article-body {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(28px, 4vw, 44px);
  box-shadow: var(--shadow-card);
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-1);
}
.article-body h1, .article-body h2, .article-body h3 { color: var(--text-1); }
.article-body h2 { font-size: 28px; font-weight: 700; margin: 1.4em 0 .6em; }
.article-body h3 { font-size: 22px; font-weight: 700; margin: 1.2em 0 .6em; }
.article-body h4 { font-size: 19px; font-weight: 700; margin: 1.1em 0 .5em; }
.article-body p { font-size: 17px; line-height: 1.85; color: var(--text-1); margin-bottom: 1em; }
.article-body a { color: var(--primary-strong); border-bottom: 1px solid rgba(167,139,250,.3); }
.article-body a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.article-body img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow-card); height: auto; }
.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--primary-soft);
  padding: 16px 22px;
  border-radius: 0 10px 10px 0;
  margin: 24px 0;
  color: var(--text-2);
  font-size: 15px;
}
.article-body ul, .article-body ol { margin: 0 0 1em 1.4em; color: var(--text-1); font-size: 16px; line-height: 1.8; }
.article-body li { margin-bottom: .4em; }
.article-body code { background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 2px 8px; font-size: 14px; font-family: "SF Mono", "Cascadia Code", Consolas, monospace; }
.article-body pre { background: var(--bg-input); border: 1px solid var(--border); border-radius: 12px; padding: 20px; overflow-x: auto; margin: 24px 0; }
.article-body pre code { background: none; border: none; padding: 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-body th { background: var(--bg-panel-2); font-weight: 600; }
.article-body hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }

.article-footer {
  max-width: 760px;
  margin: 24px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 0 20px;
}
.tags-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-radius: var(--radius-pill);
  font-size: 12px;
  transition: var(--transition);
}
.tag:hover { background: rgba(139,92,246,.22); color: var(--text-1); }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
  font-size: 14px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
  background: transparent;
}
.back-link:hover {
  color: var(--primary-strong);
  border-color: var(--primary);
  background: var(--primary-soft);
  text-decoration: none;
}
.back-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.article-empty {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 32px;
  text-align: center;
  background: var(--bg-panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
}
.article-empty .empty-icon { font-size: 48px; margin-bottom: 16px; line-height: 1; }
.article-empty h1 { font-size: 26px; font-weight: 800; color: var(--text-1); margin-bottom: 10px; }
.article-empty p { font-size: 14px; color: var(--text-3); margin-bottom: 28px; line-height: 1.6; }

.related-section { padding: clamp(56px, 8vw, 88px) 0 0; }
.related-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.related-title { font-size: clamp(24px, 3.2vw, 32px); font-weight: 700; color: var(--text-1); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.related-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(139,92,246,.35);
}
.related-card .thumb { aspect-ratio: 16/9; overflow: hidden; position: relative; background: var(--bg-panel-2); }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.related-card:hover .thumb img { transform: scale(1.04); }
.related-card .card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.related-card .badge { align-self: flex-start; margin-bottom: 10px; }
.related-card .card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}
.related-card:hover .card-title { color: var(--primary-strong); }
.related-card .card-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}
.related-card .card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-3); }

.site-footer {
  background: #060910;
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  margin-top: clamp(56px, 8vw, 96px);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr 1.2fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-2); line-height: 1.7; max-width: 340px; }
.footer-copy { font-size: 13px; color: var(--text-3); margin-top: 16px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 6px;
  letter-spacing: .3px;
}
.footer-col a { font-size: 14px; color: var(--text-2); transition: var(--transition); }
.footer-col a:hover { color: var(--primary-strong); }
.footer-col p { font-size: 13px; color: var(--text-2); line-height: 1.6; margin-bottom: 4px; }

.mobile-cta {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  height: 50px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(139,92,246,.45);
  z-index: 90;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.mobile-cta:hover { background: var(--primary-strong); color: #fff; box-shadow: 0 6px 32px rgba(139,92,246,.55); }
.mobile-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.article-header .inner { animation: fadeUp .5s ease both; }
.article-main { animation: fadeUp .6s ease .08s both; }
.related-section { animation: fadeUp .6s ease .15s both; }

@media (max-width: 992px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .nav-link { padding: 0 10px; }
}

@media (max-width: 768px) {
  body { padding-bottom: 78px; }
  .site-header { padding: 0 12px; top: 12px; }
  .nav-wrap { height: 58px; padding: 0 14px; }
  .logo-text { font-size: 16px; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 80px 20px 24px;
    gap: 6px;
    transition: right .3s ease;
    box-shadow: -8px 0 30px rgba(0,0,0,.4);
    z-index: 200;
  }
  .main-nav.open { right: 0; }
  .nav-link { width: 100%; height: 48px; font-size: 15px; padding: 0 14px; border-radius: 12px; }
  .nav-link::after { top: 8px; right: 8px; }
  .mobile-cta { display: flex; }
  .article-header .inner { padding: 0 16px; }
  .article-main { padding: 0 16px; }
  .article-body { padding: 24px 18px; }
  .article-footer { padding: 0 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .related-header { margin-bottom: 20px; }
}

@media (max-width: 520px) {
  .breadcrumb .current { max-width: 180px; }
  .article-title { font-size: 28px; }
  .article-body { font-size: 16px; }
  .article-body p { font-size: 16px; }
  .footer-grid { gap: 20px; }
  .footer-col { gap: 8px; }
  .related-grid { gap: 16px; }
  .related-card .card-body { padding: 16px; }
}

/* roulang page: category2 */
:root {
  --bg-body: #0A0E17;
  --bg-panel: #111822;
  --bg-panel-2: #1A2332;
  --bg-input: #0D1420;
  --primary: #8B5CF6;
  --primary-strong: #A78BFA;
  --primary-soft: rgba(139,92,246,0.12);
  --accent: #2DD4BF;
  --accent-soft: rgba(45,212,191,0.12);
  --warning: #F59E0B;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(148,163,184,0.14);
  --radius-lg: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(0,0,0,.25);
  --shadow-lg: 0 16px 40px rgba(0,0,0,.4);
  --transition: all .2s ease;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-body);
  color: var(--text-1);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width:100%; display:block; }
a { color: var(--primary); text-decoration:none; transition: var(--transition); }
a:hover { color: var(--primary-strong); }
button { font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input, select, textarea { font-family:inherit; font-size:15px; }
ul, ol { list-style:none; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }
section { padding: clamp(56px, 8vw, 96px) 0; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 20px;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(17,24,34,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 16px 0 20px;
  box-shadow: var(--shadow);
}
.logo { display:flex; align-items:center; gap:10px; color:var(--text-1); flex-shrink:0; }
.logo:hover { color:var(--text-1); }
.logo-mark {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff; font-weight: 800; font-size: 18px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(139,92,246,.3);
}
.logo-text { font-size: 17px; font-weight: 700; letter-spacing: .4px; white-space: nowrap; }
.main-nav {
  display: flex; align-items: center; gap: 4px;
  margin-left: auto;
}
.nav-link {
  display: flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 12px;
  border-radius: 10px;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover { background: var(--primary-soft); color: var(--primary-strong); }
.nav-link.active { background: var(--primary-soft); color: var(--primary-strong); }
.nav-link.active::after {
  content: "";
  position: absolute; top: 6px; right: 6px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
}
.nav-cta { margin-left: 8px; flex-shrink: 0; }
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border-radius: 10px;
  color: var(--text-1);
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
  margin-left: auto;
  flex-shrink: 0;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); color: var(--primary-strong); }
.nav-overlay {
  position: fixed; inset: 0;
  background: rgba(10,14,23,.6);
  z-index: 98;
  opacity: 0; visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.nav-overlay.show { opacity: 1; visibility: visible; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 15px; font-weight: 600;
  line-height: 1.2;
  transition: var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 20px rgba(139,92,246,.25); }
.btn-primary:hover { background: var(--primary-strong); color: #fff; box-shadow: 0 6px 28px rgba(139,92,246,.4); transform: translateY(-2px); }
.btn-secondary { background: transparent; border-color: var(--primary); color: var(--text-1); }
.btn-secondary:hover { background: var(--primary-soft); color: var(--primary-strong); border-color: var(--primary-strong); transform: translateY(-2px); }
.btn-sm { height: 32px; padding: 0 16px; font-size: 13px; }
.btn-lg { height: 48px; padding: 0 32px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:active { transform: translateY(0) scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; transform: none; }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 80px 0;
  overflow: hidden;
  background:
    linear-gradient(rgba(10,14,23,.72), rgba(10,14,23,.86)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before {
  content: "";
  position: absolute; top: -140px; right: -120px;
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(139,92,246,.32), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute; bottom: -180px; left: -100px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(45,212,191,.16), transparent 68%);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero-inner { position: relative; z-index: 2; text-align: center; }
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(139,92,246,.15);
  border: 1px solid rgba(139,92,246,.3);
  color: var(--primary-strong);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .3px;
  margin-bottom: 18px;
}
.page-hero h1 {
  font-size: clamp(34px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.hero-sub {
  font-size: 16px;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Section Head ===== */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto clamp(40px, 5vw, 64px);
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: .4px;
}
.section-head h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-2); font-size: 15px; }

/* ===== Feature Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(139,92,246,.4);
}
.feature-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-soft);
  border: 1px solid rgba(139,92,246,.2);
  border-radius: 12px;
  color: var(--primary-strong);
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ===== Split Section ===== */
.split-section { background: var(--bg-panel); }
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.split-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.split-content .section-tag { margin-bottom: 14px; }
.split-content h2 { font-size: clamp(24px, 3.2vw, 34px); line-height: 1.3; margin-bottom: 16px; }
.split-content > p { color: var(--text-2); margin-bottom: 20px; }
.split-list { margin-bottom: 28px; }
.split-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text-1);
  margin-bottom: 10px;
  font-size: 15px;
}
.split-list li::before {
  content: "";
  position: absolute; left: 4px; top: 9px;
  width: 14px; height: 8px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* ===== Process ===== */
.process-section { background: var(--bg-body); }
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.process-step {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 18px;
  text-align: center;
  position: relative;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(139,92,246,.4);
  box-shadow: var(--shadow);
}
.process-step::before {
  content: "";
  position: absolute; top: 50%; left: -16px;
  width: 16px;
  border-top: 2px dashed var(--border);
}
.process-step:first-child::before { display: none; }
.step-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.process-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-2); line-height: 1.6; }

/* ===== CTA Banner ===== */
.cta-banner {
  position: relative;
  padding: 60px 0;
  background:
    linear-gradient(rgba(10,14,23,.45), rgba(10,14,23,.72)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow: hidden;
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  z-index: 2;
}
.cta-banner h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 700; margin-bottom: 8px; }
.cta-banner p { color: var(--text-2); font-size: 15px; }

/* ===== FAQ ===== */
.faq-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  height: 56px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-1);
  text-align: left;
  transition: background .2s ease;
}
.faq-question:hover { background: var(--bg-panel-2); }
.faq-arrow {
  width: 10px; height: 10px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform .2s ease, border-color .2s ease;
  flex-shrink: 0;
  margin-top: -4px;
}
.faq-item.open .faq-arrow { transform: rotate(-135deg); border-color: var(--accent); margin-top: 4px; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
  padding: 0 24px;
  background: var(--bg-panel-2);
  border-left: 3px solid transparent;
}
.faq-item.open .faq-answer { max-height: 240px; padding: 4px 24px 20px; border-left-color: var(--primary); }

/* ===== Apply ===== */
.apply-section {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0;
  background:
    linear-gradient(rgba(10,14,23,.5), rgba(10,14,23,.82)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.apply-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.apply-info h2 { font-size: clamp(24px, 3.2vw, 34px); line-height: 1.3; margin-bottom: 14px; }
.apply-info > p { color: var(--text-2); margin-bottom: 24px; }
.apply-info li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  color: var(--text-1);
  font-size: 15px;
}
.apply-info li::before {
  content: "";
  position: absolute; left: 0; top: 7px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid rgba(45,212,191,.3);
}
.apply-info li::after {
  content: "";
  position: absolute; left: 7px; top: 14px;
  width: 7px; height: 4px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.apply-form {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
  appearance: none;
  -webkit-appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 42px;
}
.form-group select option { background: var(--bg-panel-2); color: var(--text-1); }
.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45,212,191,.15);
}
.form-group input.error { border-color: #F43F5E; box-shadow: 0 0 0 3px rgba(244,63,94,.12); }
.form-error { font-size: 13px; color: #F43F5E; margin-top: 6px; display: none; }
.form-error.show { display: block; }
.select-wrap { position: relative; }

/* ===== Footer ===== */
.site-footer {
  background: #060910;
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { font-size: 14px; color: var(--text-3); max-width: 320px; line-height: 1.7; }
.footer-copy { margin-top: 18px; font-size: 13px; color: var(--text-3); }
.footer-col h4 { font-size: 14px; color: var(--text-1); margin-bottom: 14px; font-weight: 600; }
.footer-col a { display: block; font-size: 14px; color: var(--text-2); padding: 4px 0; transition: var(--transition); }
.footer-col a:hover { color: var(--primary-strong); padding-left: 4px; }
.footer-col p { font-size: 13px; color: var(--text-2); margin-bottom: 6px; }

/* ===== Focus states ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(45,212,191,.25);
  border-radius: 4px;
}
.nav-link:focus-visible, .btn:focus-visible { outline-offset: 2px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .process-step::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}

@media (max-width: 768px) {
  .nav-wrap { padding: 0 14px; }
  .logo-text { font-size: 15px; }
  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 78%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: var(--bg-panel);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 84px 20px 24px;
    transition: right .3s ease;
    z-index: 99;
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
    gap: 6px;
  }
  .main-nav.open { right: 0; }
  .nav-link { height: 46px; padding: 0 14px; font-size: 15px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero-actions .btn { width: 100%; max-width: 280px; }
  .split-grid, .apply-grid { grid-template-columns: 1fr; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .cta-banner-inner .btn { width: 100%; max-width: 260px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .page-hero { min-height: auto; padding: 60px 0; }
  .apply-form { padding: 24px; }
}

@media (max-width: 520px) {
  .logo-text { font-size: 14px; letter-spacing: .2px; }
  .page-hero h1 { font-size: 30px; }
  .hero-sub { font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 22px 18px; }
  .footer-brand p { max-width: 100%; }
}

/* roulang page: category3 */
:root {
  --bg-body: #0A0E17;
  --bg-panel: #111822;
  --bg-panel-2: #1A2332;
  --bg-input: #0D1420;
  --primary: #8B5CF6;
  --primary-strong: #A78BFA;
  --primary-soft: rgba(139, 92, 246, 0.12);
  --accent: #2DD4BF;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --warning: #F59E0B;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border: rgba(148, 163, 184, 0.14);
  --radius-card: 16px;
  --radius-sm: 10px;
  --radius-round: 999px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.4);
  --shadow-primary: 0 4px 20px rgba(139, 92, 246, 0.25);
  --transition: 0.2s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-body);
  color: var(--text-1);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-strong);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
input, select, textarea {
  font-family: inherit;
  font-size: 14px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 20px;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(17, 24, 34, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #6D28D9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.35);
}
.logo-text {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.logo:hover .logo-text {
  color: var(--primary-strong);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
  min-width: 0;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 13px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  position: relative;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.nav-link svg {
  flex-shrink: 0;
  opacity: 0.85;
}
.nav-link:hover {
  background: var(--primary-soft);
  color: var(--text-1);
}
.nav-link.active {
  background: var(--primary-soft);
  color: var(--primary-strong);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(45, 212, 191, 0.6);
}
.nav-cta {
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-2);
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.nav-toggle:hover {
  background: var(--primary-soft);
  color: var(--text-1);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-round);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 12px 24px;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-strong);
  color: #fff;
  box-shadow: 0 6px 28px rgba(139, 92, 246, 0.4);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  background: transparent;
  border-color: var(--primary);
  color: #fff;
}
.btn-secondary:hover {
  background: rgba(139, 92, 246, 0.1);
  color: #fff;
  border-color: var(--primary-strong);
}
.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}
.btn-lg {
  height: 48px;
  padding: 0 32px;
  font-size: 16px;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(45, 212, 191, 0.2);
}
.page-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 72px 0;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.22), transparent 65%);
  pointer-events: none;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: -140px;
  left: -100px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.14), transparent 60%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-round);
  margin-bottom: 18px;
}
.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(45, 212, 191, 0.6);
}
.page-hero h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}
.page-hero p {
  max-width: 680px;
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.8;
}
section {
  padding: clamp(56px, 8vw, 96px) 0;
}
.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--primary-strong);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
}
.policy-section {
  background: var(--bg-body);
}
.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.policy-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.policy-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.policy-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: var(--shadow-hover);
}
.policy-card:hover::before {
  opacity: 1;
}
.policy-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-strong);
  margin-bottom: 18px;
}
.policy-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.policy-card p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.75;
}
.compare-section {
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.compare-wrap {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 48px;
  align-items: center;
}
.compare-media {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  aspect-ratio: 4 / 3;
  background: var(--bg-panel-2);
}
.compare-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.compare-media:hover img {
  transform: scale(1.03);
}
.media-float {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.media-float span {
  font-size: 12px;
  color: var(--text-2);
}
.media-float strong {
  font-size: 16px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.table-wrap {
  overflow-x: auto;
  margin-top: 8px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  background: var(--bg-body);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  font-size: 14px;
}
.compare-table th,
.compare-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums;
}
.compare-table th {
  background: var(--bg-panel-2);
  color: var(--text-1);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.compare-table th:first-child {
  border-top-left-radius: 16px;
}
.compare-table th:last-child {
  border-top-right-radius: 16px;
}
.compare-table td:first-child {
  color: var(--text-2);
  font-weight: 500;
  white-space: nowrap;
}
.compare-table td {
  color: var(--text-2);
  line-height: 1.6;
}
.compare-table tr:nth-child(even) td {
  background: rgba(148, 163, 184, 0.03);
}
.compare-table tr:last-child td {
  border-bottom: none;
}
.compare-table td.highlight {
  color: var(--accent);
  font-weight: 600;
}
.cta-banner {
  background: var(--bg-panel-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  left: -90px;
  top: 0;
  width: 360px;
  height: 100%;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.2), transparent);
  pointer-events: none;
}
.cta-banner::after {
  content: "";
  position: absolute;
  right: -90px;
  top: 0;
  width: 360px;
  height: 100%;
  background: linear-gradient(270deg, rgba(45, 212, 191, 0.14), transparent);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-text h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 8px;
}
.cta-text p {
  color: var(--text-2);
  font-size: 15px;
}
.faq-section {
  background: var(--bg-body);
}
.faq-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  min-height: 56px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-1);
  text-align: left;
  transition: background var(--transition);
}
.faq-question:hover {
  background: var(--primary-soft);
}
.faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--text-2);
  border-radius: 2px;
  transition: background var(--transition);
}
.faq-icon::before {
  width: 16px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  width: 2px;
  height: 16px;
  transform: translate(-50%, -50%);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after {
  background: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
  padding: 0 24px;
  border-top: 0 solid var(--border);
}
.faq-item.active .faq-answer {
  max-height: 240px;
  padding: 16px 24px 20px;
  border-top-width: 1px;
  border-top-color: rgba(139, 92, 246, 0.2);
}
.faq-answer p {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
}
.site-footer {
  background: #060910;
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand p {
  color: var(--text-3);
  font-size: 14px;
  line-height: 1.75;
  max-width: 290px;
  margin-bottom: 16px;
}
.footer-copy {
  font-size: 13px;
  color: var(--text-3);
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-3);
  font-size: 14px;
  padding: 5px 0;
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--primary-strong);
}
.footer-col p {
  color: var(--text-3);
  font-size: 14px;
  padding: 5px 0;
  margin: 0;
}
@media (max-width: 992px) {
  .compare-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .compare-media {
    max-width: 600px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .policy-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}
@media (max-width: 768px) {
  .site-header {
    top: 10px;
    padding: 0 12px;
  }
  .nav-wrap {
    height: 56px;
    padding: 0 12px;
    gap: 10px;
  }
  .logo-text {
    font-size: 15px;
  }
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px 24px 120px;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    z-index: 200;
  }
  .main-nav.open {
    transform: translateY(0);
  }
  .main-nav.open + .nav-cta {
    display: flex;
  }
  .nav-link {
    width: min(320px, 100%);
    height: 52px;
    justify-content: center;
    font-size: 16px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
  }
  .nav-link.active {
    border-color: var(--primary);
  }
  .nav-toggle {
    position: relative;
    z-index: 300;
  }
  body.nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 150;
  }
  .page-hero {
    min-height: 320px;
    padding: 56px 0;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .page-hero p {
    font-size: 15px;
  }
  .compare-wrap {
    grid-template-columns: 1fr;
  }
  .compare-table th,
  .compare-table td {
    padding: 12px 14px;
    font-size: 13px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  .cta-inner .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .faq-question {
    padding: 0 18px;
    font-size: 14px;
  }
  .faq-item.active .faq-answer {
    padding: 14px 18px 18px;
  }
}
@media (max-width: 480px) {
  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  .logo-text {
    font-size: 14px;
  }
  .policy-grid {
    grid-template-columns: 1fr;
  }
  .policy-card {
    padding: 22px 18px;
  }
  .section-head h2 {
    font-size: 24px;
  }
}