/* roulang page: index */
:root {
  --primary: #2B6CB0;
  --primary-hover: #1E4E79;
  --secondary: #D69E2E;
  --bg: #F7F9FC;
  --surface: #FFFFFF;
  --text: #1A202C;
  --text-secondary: #4A5568;
  --text-helper: #A0AEC0;
  --border: #E2E8F0;
  --error: #E53E3E;
  --success: #38A169;
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.1);
  --transition: 0.2s ease;
  --container: 1200px;
  --section-gap: 80px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  padding-bottom: 56px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea { font-family: inherit; }

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

/* Header */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  height: 64px;
}

.header-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  height: 64px; display: flex; align-items: center; gap: 32px;
}

.logo {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}

.logo-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
}

.logo-text {
  font-size: 24px; font-weight: 800; color: var(--primary);
  letter-spacing: 0.5px; white-space: nowrap;
}

.nav { flex: 1; display: flex; align-items: center; gap: 28px; justify-content: center; }

.nav a {
  font-size: 16px; font-weight: 500; color: var(--text-secondary);
  padding: 6px 2px; position: relative; white-space: nowrap;
}

.nav a:hover { color: var(--primary); }
.nav a.active { color: var(--primary); font-weight: 600; }
.nav a.active::after {
  content: ""; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--primary); border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 16px; margin-left: auto; }

.search-box {
  width: 220px; height: 38px; display: flex; align-items: center;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-btn);
  padding: 0 12px; gap: 8px; transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,108,176,0.15);
}

.search-box input {
  flex: 1; border: none; background: transparent; outline: none;
  font-size: 14px; color: var(--text); height: 100%;
}

.search-box input::placeholder { color: var(--text-helper); }
.search-box i { color: var(--text-helper); font-size: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: var(--radius-btn);
  font-size: 16px; font-weight: 600; transition: all var(--transition);
  cursor: pointer; line-height: 1.2;
}

.btn-primary {
  background: var(--primary); color: #fff; border: 2px solid var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover); border-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(43,108,176,0.3);
}

.btn-primary:active { transform: translateY(1px); }

.btn-outline {
  background: transparent; color: var(--primary); border: 1.5px solid var(--primary);
}

.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-outline:active { transform: translateY(1px); }

.btn-cta { height: 38px; padding: 0 20px; font-size: 14px; flex-shrink: 0; }

/* Section spacing */
main { overflow: hidden; }
.section { padding: var(--section-gap) 0; }
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 48px; gap: 24px; flex-wrap: wrap;
}

.section-title {
  font-size: 28px; font-weight: 800; color: var(--text);
  line-height: 1.3; position: relative; padding-left: 18px;
}

.section-title::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 4px; border-radius: 4px; background: var(--secondary);
}

.section-desc {
  font-size: 16px; color: var(--text-secondary); max-width: 560px;
  margin-top: 8px; line-height: 1.7;
}

/* Hero */
.hero {
  position: relative; min-height: 85vh; display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  margin-top: -1px;
}

.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.75) 50%, rgba(255,255,255,0.15) 100%);
}

.hero-inner {
  position: relative; z-index: 2; max-width: var(--container);
  margin: 0 auto; padding: 0 24px; width: 100%;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(43,108,176,0.1); color: var(--primary);
  border-radius: 999px; padding: 6px 16px; font-size: 14px; font-weight: 500;
  margin-bottom: 24px;
}

.hero-badge i { font-size: 14px; }

.hero h1 {
  font-size: 44px; font-weight: 800; color: var(--text);
  line-height: 1.25; margin-bottom: 20px; max-width: 720px;
}

.hero-sub {
  font-size: 18px; color: var(--text-secondary); line-height: 1.8;
  max-width: 640px; margin-bottom: 40px; font-weight: 400;
}

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

.hero-bg-note {
  position: absolute; right: 24px; bottom: 24px; z-index: 2;
  font-size: 14px; color: rgba(26,32,44,0.5); background: rgba(255,255,255,0.7);
  padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px);
}

/* Features */
.features .container { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; align-items: stretch; }

.feature-card {
  background: var(--surface); border-radius: var(--radius-card);
  box-shadow: var(--shadow-card); padding: 32px;
  border: 1px solid var(--border); position: relative;
  display: flex; flex-direction: column; transition: all var(--transition);
}

.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }

.feature-card.center {
  transform: scale(1.02);
}

.feature-card.center::before {
  content: ""; position: absolute; top: 0; left: 24px; right: 24px;
  height: 3px; background: var(--secondary); border-radius: 0 0 4px 4px;
}

.feature-card:hover.center { box-shadow: var(--shadow-hover); transform: scale(1.02) translateY(-4px); }

.feature-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(214,158,46,0.12); color: var(--secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 24px; transition: color var(--transition);
}

.feature-card:hover .feature-icon { color: var(--secondary); }

.feature-card h3 { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 12px; }

.feature-card p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 24px; flex: 1; }

.feature-link {
  font-size: 14px; color: var(--primary); font-weight: 600; align-self: flex-end;
  display: inline-flex; align-items: center; gap: 6px;
}

.feature-link:hover { text-decoration: underline; }

/* Scene Section */
.scene-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.scene-grid { display: grid; gap: 80px; }

.scene-item {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}

.scene-item:nth-child(even) .scene-image { order: 2; }
.scene-item:nth-child(even) .scene-content { order: 1; }

.scene-tag {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--secondary);
  background: rgba(214,158,46,0.1); padding: 4px 12px; border-radius: 999px;
  margin-bottom: 16px; letter-spacing: 1px;
}

.scene-content h2 { font-size: 26px; font-weight: 800; color: var(--text); margin-bottom: 16px; line-height: 1.4; }

.scene-content p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px; }

.scene-content .btn { padding: 10px 24px; font-size: 14px; }

.scene-image img {
  width: 100%; height: 360px; object-fit: cover;
  border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

/* Stats */
.stats-bar {
  background: var(--surface); border-radius: var(--radius-card);
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
  padding: 40px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-bottom: 48px;
}

.stat-item { text-align: center; }

.stat-number {
  font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.2;
}

.stat-label { font-size: 16px; color: var(--text-secondary); margin-top: 8px; }

.testimonials { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.testimonial-card {
  background: var(--surface); border-radius: var(--radius-card);
  border: 1px solid var(--border); padding: 32px;
  transition: all var(--transition);
}

.testimonial-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }

.stars { color: var(--secondary); font-size: 14px; margin-bottom: 16px; display: flex; gap: 4px; }

.testimonial-text { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 20px; }

.testimonial-author { font-size: 14px; color: var(--text); font-weight: 600; }

/* News list */
.news-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.news-list { display: grid; gap: 16px; max-width: 960px; margin: 0 auto; }

.news-item {
  display: flex; gap: 20px; align-items: center;
  background: var(--surface); border-radius: var(--radius-card);
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
  padding: 20px; transition: all var(--transition);
}

.news-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }

.news-thumb {
  width: 120px; height: 80px; border-radius: 8px; object-fit: cover; flex-shrink: 0;
  background: var(--bg);
}

.news-content { flex: 1; min-width: 0; }

.news-title {
  font-size: 18px; font-weight: 600; color: var(--text);
  margin-bottom: 8px; line-height: 1.4;
}

.news-excerpt {
  font-size: 14px; color: var(--text-secondary); line-height: 1.6;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.news-meta { display: flex; align-items: center; gap: 12px; margin-top: 8px; }

.news-cat {
  background: var(--secondary); color: #fff; font-size: 12px;
  padding: 2px 10px; border-radius: 999px; font-weight: 500;
}

.news-date { font-size: 14px; color: var(--text-helper); }

.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-helper);
  border: 1px dashed var(--border); border-radius: var(--radius-card);
  background: var(--bg);
}

.empty-state i { font-size: 32px; margin-bottom: 16px; }
.empty-state p { font-size: 16px; }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); margin-bottom: 16px;
  overflow: hidden; transition: all var(--transition);
}

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

.faq-item.active { border-color: var(--primary); }

.faq-question {
  padding: 24px 28px; display: flex; justify-content: space-between; align-items: center;
  font-size: 20px; font-weight: 600; color: var(--text); cursor: pointer;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--primary); }

.faq-icon {
  font-size: 24px; color: var(--primary); transition: transform var(--transition);
  font-weight: 300; line-height: 1;
}

.faq-item.active .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  padding: 0 28px; line-height: 1.8;
}

.faq-item.active .faq-answer {
  padding: 20px 28px 24px; max-height: 400px;
  border-top: 1px dashed var(--border);
}

.faq-answer p { font-size: 16px; color: var(--text-secondary); }

/* CTA */
.cta-section { background: var(--surface); }

.cta-block {
  background: var(--bg); border-radius: 16px;
  padding: 64px 48px; text-align: center;
  border: 1px solid var(--border);
}

.cta-block h2 { font-size: 28px; font-weight: 800; margin-bottom: 16px; color: var(--text); }
.cta-block p { font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 32px; line-height: 1.8; }
.cta-block .btn { padding: 14px 36px; font-size: 16px; }

/* Contact form */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px;
}

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label { font-size: 14px; font-weight: 500; color: var(--text); }

.form-group input, .form-group textarea {
  height: 42px; border: 1px solid var(--border); border-radius: var(--radius-btn);
  padding: 0 14px; font-size: 15px; background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group textarea { height: 120px; padding: 12px 14px; resize: vertical; }

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(43,108,176,0.15);
}

.form-group input.error, .form-group textarea.error { border-color: var(--error); }
.error-msg { color: var(--error); font-size: 13px; display: none; }
.form-group.has-error .error-msg { display: block; }
.success-msg { color: var(--success); font-size: 14px; text-align: center; display: none; padding: 8px; }
.success-msg.show { display: block; }

.contact-form .btn { width: 100%; }

/* Footer */
.footer { background: var(--bg); border-top: 1px solid var(--border); padding-top: 64px; }

.footer-top {
  max-width: var(--container); margin: 0 auto; padding: 0 24px 48px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
}

.footer-brand .logo { margin-bottom: 16px; }

.footer-brand p {
  font-size: 14px; color: var(--text-secondary); line-height: 1.7;
  max-width: 300px; margin-bottom: 20px;
}

.social-links { display: flex; gap: 12px; }

.social-links a {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); font-size: 14px;
  transition: all var(--transition);
}

.social-links a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.footer-col h4 {
  font-size: 16px; font-weight: 600; color: var(--text);
  margin-bottom: 16px;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a { font-size: 14px; color: var(--text-secondary); }

.footer-col ul li a:hover { color: var(--primary); }

.footer-bottom {
  border-top: 1px solid var(--border); padding: 24px 0;
  font-size: 14px; color: var(--text-helper); text-align: center;
}

/* Fixed bottom bar */
.fixed-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  background: var(--surface); border-top: 1px solid var(--border);
  box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
  height: 56px; display: flex; align-items: center;
}

.fixed-bar-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; width: 100%;
}

.fixed-bar p { font-size: 14px; color: var(--text-secondary); }
.fixed-bar .btn { height: 36px; padding: 0 24px; font-size: 14px; }

/* Mobile nav */
.mobile-toggle { display: none; font-size: 20px; color: var(--text); padding: 8px; }

.mobile-menu {
  position: fixed; top: 0; right: -300px; width: 280px; height: 100vh;
  background: var(--surface); z-index: 200; padding: 32px; display: flex;
  flex-direction: column; gap: 20px; transition: right 0.3s ease;
  border-left: 1px solid var(--border);
}

.mobile-menu.open { right: 0; }

.mobile-menu a { font-size: 16px; color: var(--text-secondary); font-weight: 500; padding: 8px 0; border-bottom: 1px solid var(--border); }
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .btn { margin-top: 16px; }

.mobile-menu-close { align-self: flex-end; font-size: 20px; padding: 8px; color: var(--text); }

.mobile-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 150;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}

.mobile-overlay.show { opacity: 1; pointer-events: auto; }

/* Responsive */
@media (max-width: 1024px) {
  .nav { gap: 16px; }
  .nav a { font-size: 14px; }
  .search-box { width: 160px; }
  .hero h1 { font-size: 36px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 48px; }

  .header-inner { gap: 16px; padding: 0 16px; }
  .logo-text { font-size: 20px; }
  .nav { display: none; }
  .header-actions .search-box { display: none; }
  .header-actions .btn-cta { display: none; }
  .mobile-toggle { display: block; }

  .hero { min-height: 60vh; }
  .hero h1 { font-size: 30px; line-height: 1.3; }
  .hero-sub { font-size: 16px; }

  .features .container { grid-template-columns: 1fr; }
  .feature-card.center { transform: none; }
  .feature-card.center::before { left: 12px; right: 12px; }
  .feature-card:hover.center { transform: translateY(-4px); }

  .scene-item { grid-template-columns: 1fr; gap: 24px; }
  .scene-item:nth-child(even) .scene-image { order: 0; }
  .scene-item:nth-child(even) .scene-content { order: 1; }
  .scene-image img { height: 240px; }
  .scene-grid { gap: 48px; }

  .stats-bar { grid-template-columns: 1fr 1fr; padding: 24px; }
  .testimonials { grid-template-columns: 1fr; }

  .news-item { flex-direction: column; align-items: flex-start; }
  .news-thumb { width: 100%; height: 180px; }

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

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

  .fixed-bar p { display: none; }
  .fixed-bar-inner { justify-content: center; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .section-title { font-size: 24px; }
  .cta-block { padding: 40px 24px; }
  .cta-block h2 { font-size: 24px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .feature-card { padding: 24px; }
  .testimonial-card { padding: 24px; }
  .news-item { padding: 16px; }
  .faq-question { padding: 18px 20px; font-size: 17px; }
  .faq-answer, .faq-item.active .faq-answer { padding-left: 20px; padding-right: 20px; }
  .footer-top { padding-bottom: 24px; }
  .fixed-bar .btn { width: 100%; margin: 0 16px; }
  .fixed-bar-inner { padding: 0; }
}

/* Accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 2px;
}

/* Breadcrumb style for inner pages (reference) */
.breadcrumb { font-size: 14px; color: var(--text-helper); display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--text-helper); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 12px; }

/* Image placeholder bg */
.placeholder-bg { background: var(--bg); }

/* roulang page: category1 */
:root {
    --primary: #2B6CB0;
    --primary-hover: #1E4E79;
    --primary-light: #EBF4FF;
    --secondary: #D69E2E;
    --secondary-light: #FDF6E3;
    --bg: #F7F9FC;
    --surface: #FFFFFF;
    --text: #1A202C;
    --text-secondary: #4A5568;
    --text-helper: #A0AEC0;
    --border: #E2E8F0;
    --success: #38A169;
    --error: #E53E3E;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
    --transition: all 0.2s ease;
    --max-width: 1200px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }

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

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

  ul,
  ol {
    list-style: none;
  }

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

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

  /* ---- Header & Nav ---- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    height: 64px;
  }

  .header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 24px;
    padding-right: 24px;
    gap: 20px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }

  .logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
  }

  .nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: 20px;
  }

  .nav a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 2px;
    position: relative;
    white-space: nowrap;
  }

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

  .nav a.active {
    color: var(--primary);
    font-weight: 600;
  }

  .nav a.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
  }

  .search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    height: 38px;
    padding: 0 12px;
    width: 220px;
    gap: 8px;
  }

  .search-box i {
    color: var(--text-helper);
    font-size: 14px;
  }

  .search-box input {
    background: transparent;
    border: none;
    flex: 1;
    font-size: 14px;
    color: var(--text);
    height: 100%;
  }

  .search-box input::placeholder {
    color: var(--text-helper);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid transparent;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
  }

  .btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
  }

  .btn-primary:active {
    transform: translateY(1px);
  }

  .btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
  }

  .btn-outline:hover {
    background: var(--primary);
    color: #fff;
  }

  .btn-header {
    height: 38px;
    padding: 0 18px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
  }

  .btn-header:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
  }

  /* 汉堡菜单 */
  .menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text);
    cursor: pointer;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
  }

  .mobile-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    padding: 20px 24px 28px;
    flex-direction: column;
    gap: 16px;
    z-index: 99;
  }

  body.mobile-open .mobile-menu {
    display: flex;
  }

  .mobile-menu a {
    font-size: 16px;
    color: var(--text);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
  }

  .mobile-menu a.active {
    color: var(--primary);
    font-weight: 600;
  }

  .mobile-menu .search-box {
    width: 100%;
    margin-top: 8px;
  }

  .mobile-menu .btn {
    margin-top: 8px;
  }

  body.mobile-open {
    overflow: hidden;
  }

  body.mobile-open .site-header {
    box-shadow: none;
  }

  /* ---- Page Hero / Banner ---- */
  .page-hero {
    background: linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.65)), url('/assets/images/backpic/back-1.webp') center center / cover;
    padding: 72px 0 56px;
    border-bottom: 1px solid var(--border);
  }

  .page-hero .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    margin-bottom: 16px;
  }

  .page-hero h1 {
    font-size: 36px;
    line-height: 1.2;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
  }

  .page-hero .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 720px;
    line-height: 1.7;
  }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
  }

  .hero-tag {
    border-radius: 999px;
    padding: 6px 18px;
    font-size: 14px;
    transition: var(--transition);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
  }

  .hero-tag.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
  }

  .hero-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
  }

  .hero-tag.active:hover {
    background: var(--primary-hover);
    color: #fff;
  }

  .hero-actions {
    margin-top: 32px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* ---- Section ---- */
  .section {
    padding: 80px 0;
  }

  .section-alt {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
  }

  .section-header h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
  }

  .section-header h2::before {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -14px;
    width: 40px;
    height: 3px;
    background: var(--secondary);
    border-radius: 4px;
  }

  .section-header p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
  }

  /* ---- 卖点卡片 ---- */
  .features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: stretch;
  }

  .feature-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
  }

  .feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
  }

  .feature-card.center-feature {
    transform: scale(1.02);
    border-top: 3px solid var(--secondary);
  }

  .feature-card.center-feature:hover {
    transform: scale(1.02) translateY(-4px);
  }

  .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: var(--secondary-light);
    color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
  }

  .feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
  }

  .feature-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
  }

  .feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    margin-top: 20px;
    font-size: 15px;
  }

  .feature-link:hover {
    color: var(--primary-hover);
    gap: 10px;
  }

  /* ---- 场景模块 ---- */
  .scene-modules {
    display: flex;
    flex-direction: column;
    gap: 48px;
  }

  .scene-block {
    display: flex;
    align-items: center;
    gap: 48px;
  }

  .scene-block.reverse {
    flex-direction: row-reverse;
  }

  .scene-image {
    flex: 1;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--border);
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .scene-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 280px;
  }

  .scene-content {
    flex: 1;
  }

  .scene-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .scene-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
  }

  .scene-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
  }

  .scene-content a {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .scene-content a:hover {
    color: var(--primary-hover);
    gap: 10px;
  }

  /* ---- 数据条 ---- */
  .stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 40px 32px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    text-align: center;
  }

  .stat-item .stat-num {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
  }

  .stat-item .stat-label {
    font-size: 15px;
    color: var(--text-helper);
    margin-top: 4px;
    letter-spacing: 0.5px;
  }

  /* ---- 内容卡片网格 ---- */
  .content-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

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

  .content-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
  }

  .content-cover {
    height: 180px;
    background: var(--border);
    overflow: hidden;
  }

  .content-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .content-body {
    padding: 24px 24px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .content-tag {
    display: inline-block;
    background: var(--secondary);
    color: #fff;
    font-size: 12px;
    padding: 3px 12px;
    border-radius: 999px;
    font-weight: 600;
    margin-bottom: 10px;
    width: fit-content;
    letter-spacing: 0.3px;
  }

  .content-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 8px;
  }

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

  .content-card .card-meta {
    font-size: 13px;
    color: var(--text-helper);
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  /* ---- 流程 ---- */
  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    counter-reset: step;
  }

  .process-step {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 32px 24px;
    border: 1px solid var(--border);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
  }

  .process-step:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
  }

  .process-step .step-num {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    margin: 0 auto 16px;
  }

  .process-step h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
  }

  .process-step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
  }

  /* ---- FAQ ---- */
  .faq-wrap {
    max-width: 800px;
    margin: 0 auto;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
  }

  .faq-item.open {
    box-shadow: var(--shadow-sm);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
  }

  .faq-question .faq-icon {
    font-size: 20px;
    color: var(--primary);
    transition: transform 0.2s ease;
    flex-shrink: 0;
    margin-left: 16px;
  }

  .faq-item.open .faq-question .faq-icon {
    transform: rotate(45deg);
    color: var(--secondary);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .faq-item.open .faq-answer {
    max-height: 300px;
  }

  .faq-answer-inner {
    padding: 4px 24px 20px;
    border-top: 1px dashed var(--border);
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
    padding-top: 14px;
  }

  /* ---- CTA ---- */
  .cta-section {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 56px 0;
  }

  .cta-box {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    border: 1px solid var(--border);
  }

  .cta-box h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
  }

  .cta-box p {
    color: var(--text-secondary);
    font-size: 16px;
  }

  /* ---- Footer ---- */
  .footer {
    background: #F7F9FC;
    border-top: 1px solid var(--border);
    padding-top: 40px;
  }

  .footer-top {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
  }

  .footer-brand .logo {
    margin-bottom: 12px;
  }

  .footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
  }

  .social-links {
    display: flex;
    gap: 10px;
    margin-top: 16px;
  }

  .social-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 15px;
    transition: var(--transition);
  }

  .social-links a:hover {
    background: var(--primary);
    color: #fff;
  }

  .footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
  }

  .footer-col ul li {
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-secondary);
  }

  .footer-col ul li a {
    font-size: 14px;
    color: var(--text-secondary);
  }

  .footer-col ul li a:hover {
    color: var(--primary);
  }

  .footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    background: #fff;
  }

  .footer-bottom .container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    text-align: center;
  }

  .footer-bottom p {
    font-size: 13px;
    color: var(--text-helper);
  }

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

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

  /* ---- 表单 ---- */
  .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .form-group.full {
    grid-column: 1 / -1;
  }

  .form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
  }

  .form-group input,
  .form-group textarea {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0 14px;
    height: 42px;
    background: var(--surface);
    font-size: 14px;
    color: var(--text);
    transition: var(--transition);
  }

  .form-group textarea {
    height: 120px;
    padding: 12px 14px;
    resize: vertical;
  }

  .form-group input:focus,
  .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
  }

  .form-error {
    color: var(--error);
    font-size: 12px;
  }

  .form-success {
    color: var(--success);
    font-size: 14px;
  }

  .btn-block {
    width: 100%;
    margin-top: 8px;
  }

  .contact-section {
    padding: 80px 0;
  }

  .contact-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 40px;
    max-width: 720px;
    margin: 0 auto;
  }

  .contact-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 24px;
    text-align: center;
  }

  /* ---- 响应式 ---- */
  @media (max-width: 1024px) {
    .features-grid {
      gap: 20px;
    }

    .feature-card {
      padding: 28px 24px;
    }

    .scene-block,
    .scene-block.reverse {
      flex-direction: column;
      gap: 24px;
    }

    .scene-image,
    .scene-content {
      width: 100%;
      flex: none;
    }

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

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

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

    .nav {
      display: none;
    }

    .header-actions .search-box {
      display: none;
    }

    .header-actions .btn-header {
      display: none;
    }

    .menu-toggle {
      display: flex;
      align-items: center;
      justify-content: center;
      background: none;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 18px;
      color: var(--text);
      width: 38px;
      height: 38px;
      cursor: pointer;
    }

    .mobile-menu {
      display: none;
    }

    body.mobile-open .mobile-menu {
      display: flex;
    }

    .page-hero {
      padding: 56px 0 40px;
    }

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

    .page-hero .subtitle {
      font-size: 16px;
    }

    .section {
      padding: 56px 0;
    }

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

    .feature-card.center-feature {
      transform: none;
    }

    .feature-card.center-feature:hover {
      transform: translateY(-4px);
    }

    .stats-bar {
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

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

    .cta-box {
      flex-direction: column;
      text-align: center;
      padding: 32px 24px;
    }

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

    .footer-brand {
      grid-column: 1 / -1;
    }

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

    .contact-card {
      padding: 28px 20px;
    }
  }

  @media (max-width: 520px) {
    .header-inner {
      padding-left: 12px;
      padding-right: 12px;
    }

    .logo-text {
      font-size: 20px;
    }

    .section-header h2 {
      font-size: 24px;
    }

    .page-hero h1 {
      font-size: 26px;
    }

    .page-hero .hero-actions {
      flex-direction: column;
      gap: 12px;
    }

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

    .stats-bar {
      grid-template-columns: 1fr;
    }

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

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

    .container {
      padding-left: 16px;
      padding-right: 16px;
    }

    .hero-tags {
      overflow-x: auto;
      flex-wrap: nowrap;
      padding-bottom: 8px;
      -webkit-overflow-scrolling: touch;
    }

    .hero-tag {
      flex-shrink: 0;
    }
  }

  /* 焦点可见性 */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
  }

/* roulang page: article */
:root {
            --primary: #2B6CB0;
            --primary-dark: #1E4E79;
            --secondary: #D69E2E;
            --bg: #F7F9FC;
            --surface: #FFFFFF;
            --text: #1A202C;
            --text-secondary: #4A5568;
            --text-helper: #A0AEC0;
            --border: #E2E8F0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);
            --font: "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);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

        ul {
            list-style: none;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 16px;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all .2s ease;
            font-family: var(--font);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.30);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            height: 38px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(43, 108, 176, 0.30);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
        }

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

        .nav a {
            padding: 8px 18px;
            font-size: 16px;
            color: var(--text-secondary);
            border-radius: 6px;
            position: relative;
            font-weight: 400;
        }

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

        .nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav a.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 38px;
            width: 220px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
        }

        .search-box i {
            color: var(--text-helper);
            font-size: 14px;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            color: var(--text);
            width: 100%;
            font-family: var(--font);
        }

        .search-box input::placeholder {
            color: var(--text-helper);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
        }

        .menu-toggle:hover {
            background: var(--bg);
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 20px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a.link-item {
            padding: 10px 0;
            font-size: 16px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu a.link-item:hover {
            color: var(--primary);
        }

        .mobile-menu a.link-item.active {
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            height: 40px;
            margin-top: 8px;
        }

        .mobile-search input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 14px;
            font-family: var(--font);
        }

        .mobile-search i {
            color: var(--text-helper);
            margin-right: 8px;
            font-size: 14px;
        }

        .mobile-menu .btn {
            margin-top: 12px;
            width: 100%;
        }

        /* ===== 面包屑 ===== */
        .article-main {
            padding: 40px 0 80px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-helper);
            margin-bottom: 40px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb .sep {
            color: var(--text-helper);
            font-size: 12px;
        }

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

        .breadcrumb .back-link {
            margin-left: auto;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
        }

        .breadcrumb .back-link:hover {
            text-decoration: underline;
        }

        /* ===== 文章主体 ===== */
        .article-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }

        .article-header {
            margin-bottom: 8px;
        }

        .article-header h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            font-size: 14px;
            color: var(--text-helper);
            padding: 0 0 24px;
            border-bottom: 1px solid var(--border);
        }

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

        .article-meta i {
            color: var(--primary);
            font-size: 14px;
        }

        .article-meta .cat-tag {
            background: var(--secondary);
            color: #fff;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
        }

        /* 正文排版 */
        .article-content {
            padding: 36px 0 20px;
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 100%;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 36px 0 16px;
            line-height: 1.5;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin: 30px 0 14px;
            line-height: 1.5;
        }

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

        .article-content img {
            border-radius: var(--radius);
            margin: 28px 0;
            width: 100%;
            height: auto;
        }

        .article-content blockquote {
            border-left: 3px solid var(--secondary);
            background: var(--bg);
            padding: 16px 22px;
            margin: 28px 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin: 20px 0;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
        }

        .article-content a:hover {
            color: var(--primary-dark);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content table th {
            background: var(--bg);
            font-weight: 600;
        }

        /* 空状态 */
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }

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

        .not-found p {
            color: var(--text-helper);
            margin-bottom: 24px;
            font-size: 18px;
        }

        /* CTA */
        .article-cta {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
            margin: 40px 0 60px;
            border: 1px solid var(--border);
        }

        .article-cta p {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 20px;
        }

        .article-cta .btn {
            min-width: 160px;
        }

        /* ===== 相关阅读 ===== */
        .related-section {
            max-width: 820px;
            margin: 0 auto;
        }

        .related-section h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section h2::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all .2s ease;
            display: block;
            box-shadow: var(--shadow-sm);
        }

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

        .related-card:active {
            transform: translateY(-2px);
        }

        .related-card .thumb {
            height: 120px;
            background-size: cover;
            background-position: center;
            background-color: var(--bg);
        }

        .related-card .info {
            padding: 16px 16px 20px;
        }

        .related-card .info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .info .date {
            font-size: 13px;
            color: var(--text-helper);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .info .date i {
            font-size: 12px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding-top: 64px;
        }

        .footer-top {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px 48px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-top: 12px;
        }

        .social-links {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .social-links a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--surface);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all .2s ease;
        }

        .social-links a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

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

        .footer-bottom p {
            font-size: 14px;
            color: var(--text-helper);
        }

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

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-actions .search-box {
                display: none;
            }

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

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

        @media (max-width: 768px) {
            .nav,
            .header-actions {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 40px;
            }

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

            .article-header h1 {
                font-size: 26px;
            }

            .article-cta {
                padding: 28px 24px;
            }

            .breadcrumb .back-link {
                display: none;
            }

            .container {
                padding: 0 20px;
            }

            .article-main {
                padding: 24px 0 60px;
            }

            .article-content {
                font-size: 16px;
            }

            .footer {
                padding-top: 48px;
            }
        }

        @media (max-width: 520px) {
            .article-header h1 {
                font-size: 22px;
                line-height: 1.45;
            }

            .article-meta {
                flex-direction: column;
                gap: 10px;
            }

            .article-content {
                font-size: 16px;
                line-height: 1.75;
            }

            .article-cta p {
                font-size: 16px;
            }

            .related-card .thumb {
                height: 100px;
            }

            .footer-top {
                padding: 0 20px 36px;
            }

            .breadcrumb {
                margin-bottom: 24px;
                font-size: 13px;
            }

            .seed-none {
                display: none;
            }
        }

/* roulang page: category2 */
:root{
  --primary:#2B6CB0;
  --primary-dark:#1E4E79;
  --secondary:#D69E2E;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --text-main:#1A202C;
  --text-sub:#4A5568;
  --text-helper:#A0AEC0;
  --border:#E2E8F0;
  --error:#E53E3E;
  --success:#38A169;
  --radius-card:12px;
  --radius-btn:8px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover:0 8px 24px rgba(0,0,0,0.10);
  --transition:0.2s ease;
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.75;
  color:var(--text-main);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--transition);}
img{max-width:100%;display:block;}
ul{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;
}

/* ===== Header / Nav ===== */
.header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 4px rgba(0,0,0,0.04);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-icon{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  box-shadow:0 2px 8px rgba(43,108,176,0.25);
}
.logo-text{
  font-size:24px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:0.5px;
}
.nav{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1;
  justify-content:center;
}
.nav a{
  font-size:16px;
  font-weight:500;
  color:var(--text-sub);
  padding:6px 2px;
  position:relative;
  white-space:nowrap;
}
.nav a:hover{color:var(--primary);}
.nav a.active{
  color:var(--primary);
  font-weight:700;
}
.nav a.active::after{
  content:"";
  position:absolute;
  bottom:-2px;left:0;
  width:100%;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-shrink:0;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  padding:0 12px;
  height:38px;
  width:220px;
  transition:border-color var(--transition), box-shadow var(--transition);
}
.search-box input{
  border:none;
  outline:none;
  background:transparent;
  font-size:14px;
  width:100%;
  color:var(--text-main);
}
.search-box i{color:var(--text-helper);margin-right:8px;font-size:14px;}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(43,108,176,0.15);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-btn);
  padding:12px 28px;
  font-size:16px;
  font-weight:600;
  transition:all var(--transition);
  text-align:center;
  line-height:1.2;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
  box-shadow:0 4px 12px rgba(43,108,176,0.3);
}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  background:var(--surface);
  color:var(--primary);
  border:1.5px solid var(--primary);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 22px;font-size:14px;}

/* ===== Page Hero ===== */
.page-hero{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  padding:72px 0 80px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg, rgba(255,255,255,0.94) 20%, rgba(255,255,255,0.78) 55%, rgba(255,255,255,0.55) 80%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero .badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(43,108,176,0.10);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:38px;
  font-weight:800;
  color:var(--text-main);
  line-height:1.2;
  margin-bottom:16px;
}
.page-hero h1 span{color:var(--primary);}
.page-hero .subtitle{
  font-size:18px;
  color:var(--text-sub);
  max-width:680px;
  line-height:1.7;
}

/* ===== Sub Tags ===== */
.sub-tags{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:16px 0;
}
.sub-tags-inner{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.sub-tag{
  display:inline-block;
  padding:6px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  background:var(--surface);
  border:1px solid var(--border);
  color:var(--text-sub);
  transition:all var(--transition);
  cursor:pointer;
}
.sub-tag:hover{border-color:var(--primary);color:var(--primary);}
.sub-tag.active{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  font-weight:600;
}

/* ===== Section Base ===== */
.section{padding:80px 0;}
.section-head{
  text-align:center;
  margin-bottom:48px;
}
.section-head .section-title{
  font-size:30px;
  font-weight:800;
  color:var(--text-main);
  position:relative;
  display:inline-block;
  padding-bottom:14px;
}
.section-head .section-title::after{
  content:"";
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%);
  width:56px;height:3px;
  background:var(--secondary);
  border-radius:3px;
}
.section-head .section-desc{
  font-size:16px;
  color:var(--text-sub);
  margin-top:14px;
  max-width:720px;
  margin-left:auto;
  margin-right:auto;
}

/* ===== Feature Cards ===== */
.features-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.feature-card{
  background:var(--surface);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  padding:32px;
  position:relative;
  transition:transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.feature-card.center{
  transform:scale(1.02);
  border-top:3px solid var(--secondary);
}
.feature-card.center:hover{transform:scale(1.02) translateY(-4px);}
.feature-card .icon-wrap{
  width:52px;height:52px;
  border-radius:14px;
  background:rgba(214,158,46,0.12);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  color:var(--secondary);
  margin-bottom:20px;
}
.feature-card h3{
  font-size:20px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:12px;
}
.feature-card p{
  font-size:16px;
  color:var(--text-sub);
  line-height:1.7;
  margin-bottom:16px;
}
.feature-card .more-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.feature-card .more-link:hover{color:var(--primary-dark);gap:10px;}

/* ===== Showcase ===== */
.showcase-block{
  display:flex;
  align-items:center;
  gap:48px;
  margin-bottom:80px;
}
.showcase-block:last-child{margin-bottom:0;}
.showcase-block.reverse{flex-direction:row-reverse;}
.showcase-media{
  flex:1;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:0 8px 24px rgba(0,0,0,0.08);
}
.showcase-media img{
  width:100%;
  height:320px;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.showcase-block:hover .showcase-media img{transform:scale(1.03);}
.showcase-content{flex:1;}
.showcase-content .step-num{
  font-size:14px;
  font-weight:700;
  color:var(--secondary);
  letter-spacing:1px;
  margin-bottom:10px;
}
.showcase-content h3{
  font-size:26px;
  font-weight:800;
  color:var(--text-main);
  margin-bottom:14px;
}
.showcase-content p{
  font-size:16px;
  color:var(--text-sub);
  line-height:1.75;
  margin-bottom:20px;
}
.showcase-content .text-link{
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.showcase-content .text-link:hover{color:var(--primary-dark);}

/* ===== Content Cards ===== */
.content-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.content-card{
  background:var(--surface);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--transition), box-shadow var(--transition);
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.content-card .card-media{
  height:190px;
  overflow:hidden;
  background:var(--bg);
}
.content-card .card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.content-card:hover .card-media img{transform:scale(1.04);}
.content-card .card-body{
  padding:24px;
}
.content-card .tag{
  display:inline-block;
  background:var(--secondary);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:3px 12px;
  border-radius:999px;
  margin-bottom:12px;
}
.content-card h4{
  font-size:19px;
  font-weight:700;
  color:var(--text-main);
  line-height:1.4;
  margin-bottom:10px;
  transition:color var(--transition);
}
.content-card h4:hover{color:var(--primary);}
.content-card .card-desc{
  font-size:15px;
  color:var(--text-sub);
  line-height:1.65;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.content-card .card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  color:var(--text-helper);
}

/* ===== Process ===== */
.process-section{
  background:var(--surface);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.process-item{
  text-align:center;
  padding:24px 16px;
  border-radius:var(--radius-card);
  transition:background var(--transition);
}
.process-item:hover{background:var(--bg);}
.process-item .num{
  width:48px;height:48px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:20px;
  font-weight:800;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;
  box-shadow:0 4px 12px rgba(43,108,176,0.25);
}
.process-item h4{
  font-size:18px;
  font-weight:700;
  margin-bottom:8px;
}
.process-item p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.6;
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:800px;
  margin:0 auto;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow-hover);}
.faq-item.open{border-color:var(--primary);}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 24px;
  gap:16px;
  text-align:left;
  font-size:18px;
  font-weight:600;
  color:var(--text-main);
  transition:color var(--transition);
}
.faq-question:hover{color:var(--primary);}
.faq-icon{
  width:28px;height:28px;
  border-radius:50%;
  border:1.5px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  color:var(--primary);
  transition:transform 0.3s ease, background var(--transition), color var(--transition);
  flex-shrink:0;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease;
}
.faq-answer-inner{
  padding:4px 24px 20px;
  border-top:1px dashed var(--border);
}
.faq-answer-inner p{
  font-size:16px;
  color:var(--text-sub);
  line-height:1.75;
  padding-top:14px;
}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  top:-60px;right:-40px;
  width:240px;height:240px;
  background:rgba(255,255,255,0.06);
  border-radius:50%;
}
.cta-section::after{
  content:"";
  position:absolute;
  bottom:-80px;left:10%;
  width:200px;height:200px;
  background:rgba(214,158,46,0.10);
  border-radius:50%;
}
.cta-inner{
  text-align:center;
  position:relative;
  z-index:2;
}
.cta-inner h2{
  font-size:30px;
  font-weight:800;
  color:#fff;
  margin-bottom:12px;
}
.cta-inner p{
  font-size:16px;
  color:rgba(255,255,255,0.85);
  margin-bottom:28px;
  max-width:600px;
  margin-left:auto;
  margin-right:auto;
}
.cta-inner .btn-outline{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,0.7);
}
.cta-inner .btn-outline:hover{
  background:#fff;
  color:var(--primary);
}

/* ===== Footer ===== */
.footer{
  background:var(--bg);
  border-top:1px solid var(--border);
}
.footer-top{
  max-width:1200px;
  margin:0 auto;
  padding:56px 24px 40px;
  display:grid;
  grid-template-columns:2fr 1fr 1.4fr 1fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.7;
  margin-bottom:18px;
}
.social-links{
  display:flex;
  gap:10px;
}
.social-links a{
  width:34px;height:34px;
  border-radius:8px;
  background:var(--surface);
  border:1px solid var(--border);
  color:var(--text-sub);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  transition:all var(--transition);
}
.social-links a:hover{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}
.footer-col h4{
  font-size:16px;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:16px;
}
.footer-col ul li{
  margin-bottom:10px;
  font-size:14px;
  color:var(--text-sub);
}
.footer-col ul li a{color:var(--text-sub);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0;
  text-align:center;
  font-size:14px;
  color:var(--text-helper);
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav{gap:18px;}
  .search-box{width:160px;}
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media (max-width:768px){
  .header-inner{height:60px;}
  .nav{
    display:none;
    position:absolute;
    top:60px;left:0;right:0;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:0 8px 20px rgba(0,0,0,0.06);
    flex-direction:column;
    align-items:flex-start;
    padding:16px 24px;
    gap:12px;
  }
  .nav.open{display:flex;}
  .search-box{display:none;}
  .header-actions .btn{display:none;}
  .mobile-menu-btn{
    display:flex !important;
    width:40px;height:40px;
    align-items:center;
    justify-content:center;
    font-size:20px;
    color:var(--text-main);
    border:1px solid var(--border);
    border-radius:8px;
    background:var(--surface);
  }
  .page-hero{padding:48px 0 56px;}
  .page-hero h1{font-size:28px;}
  .page-hero .subtitle{font-size:16px;}
  .section{padding:56px 0;}
  .section-head .section-title{font-size:26px;}
  .features-grid{grid-template-columns:1fr;}
  .feature-card.center{transform:none;}
  .feature-card.center:hover{transform:translateY(-4px);}
  .showcase-block, .showcase-block.reverse{
    flex-direction:column;
    gap:24px;
  }
  .showcase-media img{height:220px;}
  .content-grid{grid-template-columns:1fr;}
  .process-grid{grid-template-columns:1fr 1fr;}
  .faq-question{font-size:16px;padding:18px 20px;}
  .cta-inner h2{font-size:26px;}
  .footer-top{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:24px;}
  .page-hero .badge{font-size:13px;}
  .section-head .section-title{font-size:22px;}
  .process-grid{grid-template-columns:1fr;}
  .btn{padding:10px 20px;font-size:15px;}
  .header-actions{gap:8px;}
}

.mobile-menu-btn{
  display:none;
  width:40px;
  height:40px;
  align-items:center;
  justify-content:center;
  font-size:18px;
  color:var(--text-main);
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--surface);
}