/* roulang page: index */
:root {
  --brand-1: #7C3AED;
  --brand-2: #C026D3;
  --brand-3: #F59E0B;
  --brand-4: #F43F5E;
  --grad-main: linear-gradient(135deg, #7C3AED 0%, #C026D3 58%, #F59E0B 130%);
  --grad-btn: linear-gradient(135deg, #7C3AED 0%, #C026D3 100%);
  --grad-btn-hover: linear-gradient(135deg, #8B5CF6 0%, #D946EF 100%);
  --grad-amber: linear-gradient(135deg, #F59E0B 0%, #F43F5E 100%);
  --deep: #150C28;
  --deep-2: #1C1030;
  --ink: #1F2430;
  --muted: #647089;
  --soft: #F5F6FA;
  --line: rgba(21, 12, 40, 0.06);
  --card-shadow: 0 12px 34px rgba(21, 12, 40, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-full: 999px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --container-w: 1200px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-stack);
  background: var(--soft);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a { text-decoration: none; color: inherit; transition: color 0.2s ease; }

button { font-family: inherit; cursor: pointer; }

.container {
  width: min(var(--container-w), calc(100% - 48px));
  margin: 0 auto;
}

.section-space { padding: 84px 0; }

.section-title-wrap { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 36px; gap: 20px; }

.section-title-wrap h2 { font-size: 32px; line-height: 1.3; font-weight: 800; letter-spacing: -0.5px; margin: 0; }

.section-title-wrap .section-desc { color: var(--muted); font-size: 15px; max-width: 600px; }

.eyebrow-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(124, 58, 237, 0.08); color: var(--brand-1); border-radius: var(--radius-full); padding: 6px 14px; font-size: 12px; font-weight: 700; letter-spacing: 0.4px; margin-bottom: 14px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-full); border: 0; font-weight: 700; font-size: 15px; line-height: 1; padding: 14px 28px; cursor: pointer; transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease; white-space: nowrap; }

.btn:focus-visible { outline: 3px solid rgba(124, 58, 237, 0.35); outline-offset: 2px; }

.btn-primary { background: var(--grad-btn); color: #fff; box-shadow: 0 12px 30px rgba(124, 58, 237, 0.3); }

.btn-primary:hover { background: var(--grad-btn-hover); transform: translateY(-2px); box-shadow: 0 16px 34px rgba(124, 58, 237, 0.38); }

.btn-primary:active { transform: translateY(0); }

.btn-secondary { background: #fff; color: var(--ink); border: 1px solid rgba(21, 12, 40, 0.1); box-shadow: 0 6px 18px rgba(21, 12, 40, 0.04); }

.btn-secondary:hover { color: var(--brand-1); border-color: rgba(124, 58, 237, 0.3); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(21, 12, 40, 0.08); }

.btn-secondary:active { transform: translateY(0); }

.btn-amber { background: var(--grad-amber); color: #fff; box-shadow: 0 12px 30px rgba(244, 63, 94, 0.22); }

.btn-amber:hover { filter: brightness(1.06); transform: translateY(-2px); }

.btn-white-outline { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.35); }

.btn-white-outline:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }

.btn-lg { padding: 16px 36px; font-size: 16px; }

/* Header */
.site-header { background: #fff; position: sticky; top: 0; z-index: 120; height: 72px; box-shadow: 0 1px 0 rgba(21, 12, 40, 0.04); }

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

.brand-logo { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }

.brand-icon { width: 44px; height: 44px; border-radius: 14px; background: var(--grad-main); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; box-shadow: 0 8px 18px rgba(124, 58, 237, 0.28); }

.brand-text { display: flex; flex-direction: column; line-height: 1.22; }

.brand-text .brand-name { font-weight: 800; font-size: 19px; color: var(--ink); letter-spacing: 0.2px; }

.brand-text .brand-sub { font-size: 11px; font-weight: 600; color: var(--muted); letter-spacing: 1px; }

.header-nav-wrap { display: flex; align-items: center; justify-content: space-between; flex: 1; gap: 20px; margin-left: 18px; }

.top-nav { display: flex; align-items: center; gap: 32px; }

.top-nav a { position: relative; font-size: 15px; font-weight: 600; color: #4b5468; padding: 9px 2px; }

.top-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 2px; height: 4px; border-radius: var(--radius-full); background: var(--grad-main); transition: right 0.24s ease; }

.top-nav a:hover { color: var(--brand-1); }

.top-nav a.active { color: var(--ink); }

.top-nav a.active::after { right: 0; }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.searchbox { position: relative; display: flex; align-items: center; }

.searchbox input { border: 1px solid rgba(21, 12, 40, 0.1); border-radius: var(--radius-full); background: var(--soft); padding: 9px 18px 9px 40px; height: 42px; width: 210px; color: var(--ink); font-size: 13px; outline: none; transition: border-color 0.2s, box-shadow 0.2s; }

.searchbox input::placeholder { color: #9aa3b5; }

.searchbox input:focus { border-color: rgba(124, 58, 237, 0.45); box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.1); }

.searchbox i { position: absolute; left: 15px; color: #959eb2; font-size: 14px; pointer-events: none; }

.header-nav-wrap .btn { padding: 10px 20px; font-size: 14px; }

.hamburger { display: none; width: 44px; height: 44px; border-radius: 12px; background: transparent; border: 1px solid rgba(21, 12, 40, 0.08); color: var(--ink); font-size: 18px; align-items: center; justify-content: center; }

.hamburger:focus-visible { outline: 3px solid rgba(124, 58, 237, 0.35); }

/* Hero */
.hero { background: linear-gradient(180deg, #F5F6FA 0%, #EDEAF8 55%, #F9F7FC 100%); border-bottom: 1px solid rgba(21, 12, 40, 0.04); }

.hero-inner { display: grid; grid-template-columns: 1.02fr 0.98fr; align-items: center; gap: 60px; padding: 80px 0 74px; min-height: 640px; }

.hero-copy h1 { font-size: 46px; line-height: 1.25; font-weight: 800; margin: 0 0 18px; letter-spacing: -0.6px; }

.hero-copy h1 em { font-style: normal; background: linear-gradient(135deg, #7C3AED, #C026D3 55%, #F59E0B); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero-copy .hero-sub { color: #576079; font-size: 17px; line-height: 1.9; max-width: 540px; margin: 0 0 34px; }

.hero-btns { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-bottom: 28px; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: 13px; }

.hero-meta i { color: var(--brand-2); margin-right: 4px; }

.hero-visual { position: relative; }

.hero-visual-panel { position: relative; border-radius: 30px; overflow: hidden; background: var(--deep); box-shadow: 0 32px 80px rgba(21, 12, 40, 0.25); transform: rotate(1.2deg); }

.hero-visual-panel::after { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(124, 58, 237, 0.52) 0%, rgba(192, 38, 211, 0.32) 55%, rgba(245, 158, 11, 0.18) 100%); }

.hero-visual-panel img { width: 100%; height: 440px; object-fit: cover; }

.hero-float { position: absolute; border-radius: 18px; background: rgba(255, 255, 255, 0.86); backdrop-filter: blur(12px); box-shadow: 0 18px 46px rgba(21, 12, 40, 0.18); padding: 12px 16px; font-size: 13px; color: var(--ink); display: flex; align-items: center; gap: 10px; border: 1px solid rgba(255, 255, 255, 0.6); }

.float-1 { top: 46px; left: -32px; animation: floatMove 4.4s infinite alternate ease-in-out; }

.float-1 .fi { color: var(--brand-3); }

.float-2 { right: -22px; bottom: 62px; animation: floatMove 5.2s infinite alternate-reverse ease-in-out; }

.float-2 .fi { color: var(--brand-1); }

.hero-chip-dot { color: #10B981; }

@keyframes floatMove {
  0% { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}

/* Stat band */
.stat-band { background: #fff; padding: 28px 0; box-shadow: 0 18px 45px rgba(21, 12, 40, 0.05); margin-bottom: 0; border-radius: 0 0 30px 30px; position: relative; z-index: 3; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.stat-item { display: flex; align-items: center; gap: 14px; padding: 8px 12px; border-radius: 20px; }

.stat-icon { width: 50px; height: 50px; border-radius: 18px; background: var(--grad-amber); color: #fff; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: 0 8px 18px rgba(245, 158, 11, 0.22); }

.stat-icon.purple { background: var(--grad-main); box-shadow: 0 8px 18px rgba(124, 58, 237, 0.2); }

.stat-icon.pink { background: linear-gradient(135deg, #f43f5e, #c026d3); box-shadow: 0 8px 18px rgba(244, 63, 94, 0.2); }

.stat-icon.green { background: linear-gradient(135deg, #10B981, #059669); box-shadow: 0 8px 18px rgba(16, 185, 129, 0.18); }

.stat-item .stat-num { font-size: 30px; font-weight: 800; line-height: 1.2; color: var(--ink); }

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

/* Section feature cards */
.showcase-section { background: #fff; }

.feature-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.feature-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; box-shadow: 0 6px 18px rgba(21, 12, 40, 0.04); scroll-snap-align: start; }

.feature-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow); }

.feature-card-img { aspect-ratio: 16/10.5; overflow: hidden; position: relative; background: #f1eff6; }

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

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

.feature-card-img::after { content: ""; position: absolute; inset: auto 0 0 0; height: 55%; background: linear-gradient(180deg, transparent, rgba(21, 12, 40, 0.07)); }

.feature-body { padding: 18px 20px 22px; }

.feature-body h3 { margin: 0 0 8px; font-size: 17px; font-weight: 800; }

.feature-body p { font-size: 14px; color: var(--muted); line-height: 1.7; margin: 0; }

/* news / cms */
.news-section { background: var(--soft); }

.news-section .link-soft { color: var(--brand-1); font-size: 14px; font-weight: 600; }

.news-section .link-soft:hover { color: var(--brand-2); }

.cms-list { display: flex; flex-direction: column; gap: 18px; }

.media-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 6px 18px rgba(21, 12, 40, 0.04); overflow: hidden; display: grid; grid-template-columns: 240px 1fr; gap: 0; transition: box-shadow 0.3s; }

.media-card:hover { box-shadow: var(--card-shadow); }

.media-thumb { position: relative; background: linear-gradient(150deg, #f3e8ff, #ede9fe); min-height: 170px; }

.media-thumb .mk { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(124, 58, 237, 0.22); font-size: 42px; }

.media-thumb .thumb-date { position: absolute; left: 16px; top: 16px; background: rgba(255, 255, 255, 0.9); border-radius: var(--radius-full); padding: 6px 12px; font-size: 12px; font-weight: 700; color: var(--ink); box-shadow: 0 8px 18px rgba(21, 12, 40, 0.12); }

.media-body { padding: 22px 26px 20px; }

.media-tag { display: inline-flex; align-items: center; background: rgba(124, 58, 237, 0.07); color: var(--brand-1); border: 1px solid rgba(124, 58, 237, 0.16); border-radius: var(--radius-full); padding: 4px 12px; font-size: 12px; font-weight: 700; margin-bottom: 12px; }

.media-body h3 { margin: 0 0 8px; font-size: 18px; font-weight: 800; line-height: 1.5; }

.media-body h3 a { color: var(--ink); }

.media-body h3 a:hover { color: var(--brand-1); }

.media-body p { margin: 0 0 12px; color: var(--muted); font-size: 14px; line-height: 1.8; }

.media-more { font-size: 13px; font-weight: 700; color: var(--brand-1); display: inline-flex; align-items: center; gap: 5px; }

.media-more:hover { color: var(--brand-2); }

.news-empty-wrap { border: 2px dashed rgba(21, 12, 40, 0.1); border-radius: var(--radius-lg); background: #f1f3f9; padding: 62px 20px; text-align: center; color: #7a8499; }

.news-empty-wrap i { display: block; font-size: 30px; margin-bottom: 10px; opacity: 0.5; }

/* system req */
.sys-section { background: linear-gradient(135deg, var(--deep) 0%, var(--deep-2) 50%, #211240 100%); color: #fff; }

.sys-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }

.sys-copy h2 { color: #fff; }

.sys-copy .sys-lead { color: rgba(255, 255, 255, 0.72); font-size: 16px; line-height: 1.95; margin-bottom: 20px; }

.sys-copy .sys-list { display: flex; flex-wrap: wrap; gap: 14px; padding: 0; margin: 22px 0 0; list-style: none; }

.sys-copy .sys-list li { background: rgba(255, 255, 255, 0.09); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: var(--radius-full); padding: 8px 18px; font-size: 13px; color: rgba(255, 255, 255, 0.9); font-weight: 600; }

.sys-panel { background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.15); border-radius: var(--radius-lg); backdrop-filter: blur(8px); padding: 18px 0 0; overflow: hidden; }

.sys-line { display: flex; justify-content: space-between; gap: 14px; padding: 19px 26px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); font-size: 14px; }

.sys-line:last-child { border-bottom: 0; }

.sys-line .label { color: rgba(255, 255, 255, 0.75); font-weight: 500; }

.sys-line .value { color: #fff; font-weight: 700; text-align: right; }

/* reviews */
.reviews-section { background: #fff; position: relative; overflow: hidden; }

.reviews-section::before { content: ""; position: absolute; left: -120px; top: 10%; width: 300px; height: 300px; border-radius: 50%; background: rgba(124, 58, 237, 0.05); filter: blur(20px); }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; align-items: start; position: relative; z-index: 1; }

.review-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px 26px 24px; box-shadow: 0 12px 34px rgba(21, 12, 40, 0.07); position: relative; }

.review-card.center { background: #f5f3ff; border-color: rgba(124, 58, 237, 0.14); transform: translateY(16px); box-shadow: 0 22px 44px rgba(124, 58, 237, 0.14); }

.review-stars { color: #F59E0B; font-size: 13px; margin-bottom: 16px; display: flex; gap: 3px; }

.review-text { color: #4b5563; font-size: 15px; line-height: 1.9; margin-bottom: 20px; min-height: 108px; }

.review-person { display: flex; align-items: center; gap: 12px; border-top: 1px solid rgba(21, 12, 40, 0.05); padding-top: 14px; }

.review-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--grad-main); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }

.review-person strong { display: block; font-size: 14px; color: var(--ink); }

.review-person span { font-size: 12px; color: var(--muted); }

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

.faq-two-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 44px; align-items: start; }

.faq-side .faq-hint { color: var(--muted); font-size: 16px; line-height: 1.9; margin-bottom: 20px; }

.faq-cta-note { background: #fff; border-radius: var(--radius-md); padding: 20px 22px; box-shadow: var(--card-shadow); border: 1px solid var(--line); }

.faq-cta-note strong { display: block; margin-bottom: 6px; }

.faq-cta-note p { margin: 0; color: var(--muted); font-size: 14px; }

.faq-panel { display: flex; flex-direction: column; gap: 14px; }

.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden; transition: box-shadow 0.2s; }

.faq-item.open { box-shadow: 0 12px 32px rgba(21, 12, 40, 0.06); }

.faq-q { padding: 0; border: 0; background: transparent; width: 100%; text-align: left; font-size: 16px; font-weight: 700; color: var(--ink); display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 20px; }

.faq-q .q-icon { color: var(--brand-1); transition: transform 0.25s ease; font-size: 14px; }

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

.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.34s ease; }

.faq-a p { padding: 0 20px 18px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }

/* bottom CTA */
.cta-final { background: linear-gradient(125deg, #170b2e 0%, #1f1538 60%, #281940 100%); border-radius: 30px; box-shadow: 0 28px 80px rgba(21, 12, 40, 0.32); }

.cta-banner { padding: 64px 40px; text-align: center; color: #fff; position: relative; overflow: hidden; }

.cta-banner::before { content: ""; position: absolute; right: -90px; top: -100px; width: 240px; height: 240px; background: rgba(124, 58, 237, 0.25); filter: blur(64px); border-radius: 50%; }

.cta-banner h2 { font-size: 34px; margin: 0 0 14px; line-height: 1.35; }

.cta-banner p { color: rgba(255, 255, 255, 0.74); max-width: 560px; margin: 0 auto 28px; }

.cta-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; position: relative; z-index: 2; }

/* Footer */
.footer { background: #12091f; color: rgba(255, 255, 255, 0.75); padding: 66px 0 0; font-size: 14px; }

.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 30px; padding-bottom: 48px; }

.footer-brand .brand-logo .brand-icon { background: var(--grad-main); }

.footer-brand .brand-logo .brand-text .brand-name { color: #fff; }

.footer-brand p { margin: 20px 0 22px; color: rgba(255, 255, 255, 0.64); max-width: 320px; line-height: 1.9; }

.footer-col h5 { color: #fff; margin: 0 0 20px; font-size: 15px; font-weight: 700; }

.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul a { color: rgba(255, 255, 255, 0.64); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }

.footer-col ul a:hover { color: #fff; }

.footer-copyright { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 21px 0; text-align: center; color: rgba(255, 255, 255, 0.48); font-size: 13px; }

/* Responsive */
@media (max-width: 1024px) {
  .header-nav-wrap { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 0; padding: 18px 24px; box-shadow: 0 20px 40px rgba(21, 12, 40, 0.12); display: none; z-index: 100; border-top: 1px solid var(--line); }

  body.nav-open .header-nav-wrap { display: flex; }

  .top-nav { flex-direction: column; align-items: flex-start; width: 100%; gap: 6px; }

  .top-nav a { width: 100%; padding: 12px 0; border-bottom: 1px solid rgba(21, 12, 40, 0.05); }

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

  .nav-actions { width: 100%; padding: 16px 0 4px; flex-direction: column; align-items: flex-start; gap: 12px; }

  .searchbox input { width: 100%; }

  .header-nav-wrap .btn { width: 100%; }

  .hamburger { display: inline-flex; }

  .hero-inner { grid-template-columns: 1fr; min-height: 0; padding: 48px 0 58px; gap: 42px; }

  .hero-visual-panel img { height: 300px; }

  .feature-grid-4 { grid-template-columns: repeat(2, 1fr); gap: 18px; }

  .sys-grid { grid-template-columns: 1fr; gap: 34px; }

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

  .review-card.center { transform: translateY(0); }

  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }

  .faq-two-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 32px); }

  .section-space { padding: 48px 0; }

  .section-title-wrap { flex-direction: column; align-items: flex-start; gap: 6px; }

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

  .hero-copy h1 { font-size: 31px; line-height: 1.3; }

  .hero-copy .hero-sub { font-size: 15px; }

  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }

  .feature-grid-4 { grid-template-columns: 1fr; }

  .cms-list { gap: 12px; }

  .media-card { grid-template-columns: 1fr; }

  .media-thumb { min-height: 118px; }

  .media-body { padding: 14px 16px 16px; }

  .media-body h3 { font-size: 16px; }

  .review-text { min-height: auto; }

  .cta-final { border-radius: 22px; }

  .cta-banner { padding: 40px 22px; }

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

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

  .sys-panel { padding: 10px 0 0; }

  .sys-line { flex-direction: column; gap: 4px; padding: 16px 20px; }

  .sys-line .value { text-align: left; }

  .stat-item .stat-num { font-size: 25px; }
}

@media (max-width: 480px) {
  .brand-text .brand-name { font-size: 17px; }

  .brand-icon { width: 38px; height: 38px; }

  .hero-visual-panel img { height: 220px; }

  .float-1 { left: 8px; }

  .float-2 { right: 8px; bottom: 28px; }

  .stat-icon { width: 42px; height: 42px; }

  .stat-item .stat-num { font-size: 21px; }

  .stat-item .stat-text { font-size: 12px; }
}

/* roulang page: article */
:root {
    --brand-1: #7C3AED;
    --brand-2: #C026D3;
    --brand-3: #F59E0B;
    --brand-4: #F43F5E;
    --ink: #1F2430;
    --muted: #647089;
    --body-bg: #F5F6FA;
    --card-bg: #FFFFFF;
    --orange-bg: #FFF8ED;
    --line: rgba(21, 12, 40, 0.06);
    --line-strong: rgba(21, 12, 40, 0.1);
    --dark: #150C28;
    --dark-2: #1C1030;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --radius-pill: 999px;
    --shadow-card: 0 12px 34px rgba(21, 12, 40, 0.08);
    --shadow-hover: 0 18px 46px rgba(124, 58, 237, 0.16);
    --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
    --grad-main: linear-gradient(135deg, #7C3AED 0%, #C026D3 58%, #F43F5E 130%);
    --grad-amber: linear-gradient(135deg, #F59E0B, #F97316);
    --header-h: 72px;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font);
    background: var(--body-bg);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
    transition: all 0.25s ease;
}
a:hover {
    color: var(--brand-1);
}
img {
    max-width: 100%;
    display: block;
}
button,
input {
    font-family: inherit;
    border: 0;
    outline: none;
}
ul,
ol {
    list-style: none;
}
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.btn i {
    font-size: 14px;
}
.btn-primary {
    background: var(--grad-main);
    color: #fff;
    box-shadow: 0 10px 24px rgba(124, 58, 237, 0.24);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(192, 38, 211, 0.3);
    color: #fff;
}
.btn-primary:active {
    transform: translateY(0);
}
.btn-ghost-light {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(6px);
}
.btn-ghost-light:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}
.btn-ghost-light:active {
    transform: translateY(1px);
}
.btn:focus-visible {
    outline: 3px solid rgba(124, 58, 237, 0.35);
    outline-offset: 2px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 30px rgba(21, 12, 40, 0.04);
}
.top-header {
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-right: 8px;
    flex-shrink: 0;
}
.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--grad-main);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    box-shadow: 0 10px 22px rgba(124, 58, 237, 0.26);
}
.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}
.brand-name {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #1b1430;
}
.brand-sub {
    font-size: 10px;
    letter-spacing: 0.08em;
    color: #8a8393;
    font-weight: 600;
    margin-top: 3px;
}
.top-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
}
.top-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 10px 12px;
    font-size: 15px;
    font-weight: 500;
    color: #42424c;
    border-radius: 10px;
    white-space: nowrap;
}
.top-nav a:hover {
    color: var(--brand-1);
    background: rgba(124, 58, 237, 0.05);
}
.top-nav a.active {
    color: var(--brand-1);
    font-weight: 600;
}
.top-nav a.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 0;
    height: 3px;
    border-radius: 99px;
    background: var(--grad-main);
}
.search-wrap {
    height: 40px;
    display: flex;
    align-items: center;
    background: #f3f1f7;
    border: 1px solid rgba(21, 12, 40, 0.04);
    border-radius: var(--radius-pill);
    padding-left: 16px;
    transition: box-shadow 0.25s ease, background 0.25s ease;
}
.search-wrap:focus-within {
    background: #fff;
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12);
}
.search-wrap i {
    color: #8a8593;
    font-size: 14px;
}
.search-wrap input {
    background: transparent;
    border: 0;
    font-size: 14px;
    color: var(--ink);
    width: 126px;
    padding: 0 8px;
}
.search-wrap input::placeholder {
    color: #aaa3b2;
}
.search-wrap button {
    background: transparent;
    color: var(--brand-1);
    width: 40px;
    height: 40px;
    border-radius: 0 99px 99px 0;
    cursor: pointer;
    font-size: 14px;
}
.header-cta {
    height: 42px;
    font-size: 14px;
    padding: 0 20px;
    flex-shrink: 0;
}
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(124, 58, 237, 0.08);
    color: var(--brand-1);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}
.menu-toggle i {
    font-size: 18px;
}

/* Mobile drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(86vw, 380px);
    height: 100vh;
    background: #fff;
    box-shadow: -10px 0 50px rgba(21, 12, 40, 0.2);
    transform: translateX(104%);
    transition: transform 0.35s cubic-bezier(0.22, 0.68, 0, 1);
    z-index: 220;
    overflow-y: auto;
    padding: 24px;
    visibility: hidden;
}
.mobile-drawer.is-open {
    transform: translateX(0);
    visibility: visible;
}
.mobile-drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}
.drawer-close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f2f0f6;
    color: #4b4254;
    cursor: pointer;
}
.mobile-drawer .top-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0 0 28px;
    width: 100%;
}
.mobile-drawer .top-nav a {
    padding: 14px 16px;
    font-size: 16px;
    border-radius: 14px;
}
.mobile-drawer .top-nav a.active {
    background: rgba(124, 58, 237, 0.08);
}
.mobile-drawer .top-nav a.active::after {
    display: none;
}
.mobile-drawer .btn {
    width: 100%;
}
.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(21, 12, 40, 0.44);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}
.drawer-backdrop.is-open {
    opacity: 1;
    visibility: visible;
}

/* Page main */
.page-section {
    padding: 64px 0 80px;
}
.article-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 38px;
}
.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 14px;
    color: var(--muted);
}
.breadcrumbs a {
    color: #55505f;
}
.breadcrumbs a:hover {
    color: var(--brand-1);
}
.breadcrumbs i {
    font-size: 12px;
    color: #b9b2c2;
}
.breadcrumbs .current {
    color: var(--ink);
    font-weight: 500;
    max-width: 420px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--brand-1);
    background: rgba(124, 58, 237, 0.07);
    border: 1px solid rgba(124, 58, 237, 0.08);
    padding: 9px 16px;
    border-radius: 999px;
    font-weight: 600;
    transition: all 0.25s ease;
    flex-shrink: 0;
}
.back-link:hover {
    background: rgba(124, 58, 237, 0.12);
    color: var(--brand-1);
    transform: translateX(-3px);
}

.post-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 44px 48px 50px;
    border: 1px solid rgba(255, 255, 255, 0.5);
}
.article-badge-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}
.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 13px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 999px;
    background: #f3efff;
    color: var(--brand-1);
    border: 1px solid rgba(124, 58, 237, 0.16);
}
.badge-pill.gold {
    background: #fff6e8;
    color: #b45309;
    border-color: rgba(245, 158, 11, 0.24);
}
.badge-pill i {
    font-size: 11px;
}
.post-card h1 {
    font-size: 34px;
    line-height: 1.38;
    font-weight: 800;
    color: #17101f;
    margin: 0 0 18px;
    letter-spacing: -0.01em;
}
.post-meta-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding-bottom: 28px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    font-size: 14px;
}
.post-meta-row span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}
.post-meta-row i {
    color: #b2abbf;
    font-size: 13px;
}

.article-content {
    font-size: 17px;
    line-height: 1.95;
    color: #2b2634;
    word-break: break-word;
}
.article-content p {
    margin-bottom: 22px;
}
.article-content h2 {
    font-size: 27px;
    font-weight: 800;
    color: #1b1430;
    line-height: 1.5;
    margin: 42px 0 18px;
    padding-left: 16px;
    border-left: 4px solid transparent;
    border-image: linear-gradient(180deg, #7C3AED, #F59E0B) 1;
}
.article-content h3 {
    font-size: 23px;
    font-weight: 800;
    color: #211a2c;
    margin: 34px 0 14px;
    line-height: 1.5;
}
.article-content h4 {
    font-size: 18px;
    font-weight: 700;
    color: #2c2536;
    margin: 26px 0 12px;
}
.article-content ul,
.article-content ol {
    margin: 0 0 24px;
    padding-left: 24px;
}
.article-content li {
    margin-bottom: 9px;
}
.article-content ul li {
    list-style: disc;
}
.article-content ol li {
    list-style: decimal;
}
.article-content ul li::marker,
.article-content ol li::marker {
    color: var(--brand-1);
}
.article-content a {
    color: var(--brand-1);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: rgba(124, 58, 237, 0.35);
}
.article-content a:hover {
    text-decoration-color: var(--brand-1);
}
.article-content strong {
    color: #211a2c;
    font-weight: 700;
}
.article-content blockquote {
    margin: 28px 0;
    padding: 22px 26px;
    background: linear-gradient(135deg, #f7f2ff, #fff8ef);
    border-radius: 18px;
    border-left: 4px solid var(--brand-2);
    color: #4c4056;
    font-size: 16px;
    line-height: 1.9;
}
.article-content img {
    border-radius: var(--radius-md);
    margin: 24px 0;
    box-shadow: var(--shadow-card);
}
.article-content pre {
    background: #150c28;
    color: #f0edf6;
    padding: 22px 24px;
    border-radius: 16px;
    overflow-x: auto;
    font-size: 14px;
    line-height: 1.7;
    margin: 24px 0;
}
.article-content code {
    background: rgba(124, 58, 237, 0.09);
    color: var(--brand-1);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 14px;
}
.article-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 26px 0;
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
}
.article-content table th,
.article-content table td {
    padding: 13px 18px;
    border: 1px solid rgba(21, 12, 40, 0.06);
    font-size: 15px;
}
.article-content table th {
    background: #f7f2ff;
    color: #2b1937;
    font-weight: 700;
}
.article-content table tr:nth-child(even) td {
    background: #fbfafd;
}

.article-tag-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 38px 0 0;
    padding: 20px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}
.article-tag-row .tag-label {
    font-size: 14px;
    color: #8d8794;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-right: 4px;
}
.tag-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 999px;
    background: #f6f4f9;
    border: 1px solid rgba(21, 12, 40, 0.05);
    color: #575060;
    font-size: 13px;
    font-weight: 500;
}
.tag-link:hover {
    background: rgba(124, 58, 237, 0.09);
    color: var(--brand-1);
    border-color: rgba(124, 58, 237, 0.18);
}

.post-nav-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}
.post-pager {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #f9f8fb;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px 20px;
    transition: all 0.25s ease;
}
.post-pager:hover {
    border-color: rgba(124, 58, 237, 0.2);
    background: #f5f1ff;
    transform: translateY(-3px);
}
.post-pager.next {
    text-align: right;
    align-items: flex-end;
}
.pager-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #9a93a5;
}
.pager-title {
    font-size: 15px;
    font-weight: 600;
    color: #2c2536;
    line-height: 1.5;
}

/* Sidebar */
.article-aside {
    padding-left: 8px;
}
.side-module {
    position: sticky;
    top: 96px;
    background: #fff;
    border-radius: 22px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    padding: 24px;
    margin-bottom: 24px;
}
.side-module__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.side-module__head h3 {
    font-size: 18px;
    font-weight: 800;
    color: #1b1430;
}
.side-module__head h3 i {
    color: var(--brand-2);
    margin-right: 8px;
    font-size: 15px;
}
.side-all {
    font-size: 13px;
    color: var(--brand-1);
}
.side-media-link {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 14px;
    padding: 13px 0;
    border-bottom: 1px solid rgba(21, 12, 40, 0.045);
}
.side-media-link:last-child {
    border-bottom: 0;
    padding-bottom: 4px;
}
.side-thumb {
    border-radius: 12px;
    overflow: hidden;
    width: 100px;
    height: 72px;
    flex-shrink: 0;
}
.side-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.side-media-link b {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #2c2536;
    line-height: 1.5;
    margin-bottom: 5px;
    transition: color 0.2s ease;
}
.side-media-link:hover b {
    color: var(--brand-1);
}
.side-media-link span {
    font-size: 12px;
    color: #9892a0;
}
.side-min-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 4px;
}
.side-min-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 6px;
    border-radius: 10px;
    font-size: 14px;
    color: #4c4560;
}
.side-min-nav a i {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: #f5f2ff;
    color: var(--brand-1);
    font-size: 11px;
}
.side-min-nav a:hover {
    background: #f7f3ff;
    color: var(--brand-1);
}

/* Not found */
.not-found-card {
    max-width: 780px;
    margin: 40px auto;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 80px 30px;
    text-align: center;
    border: 1px dashed rgba(124, 58, 237, 0.24);
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.not-found-card i {
    display: block;
    width: 84px;
    height: 84px;
    margin: 0 auto 22px;
    border-radius: 28px;
    background: linear-gradient(135deg, #f5eefe, #fff2df);
    color: var(--brand-2);
    font-size: 32px;
    line-height: 84px;
}
.not-found-card h1 {
    font-size: 26px;
    margin-bottom: 12px;
    color: #201b28;
}
.not-found-card p {
    color: var(--muted);
    margin-bottom: 24px;
}

/* CTA */
.cta-strip {
    background: linear-gradient(135deg, #150c28 0%, #2c1450 100%);
    border-radius: 28px;
    margin-bottom: 0;
    padding: 48px 24px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}
.cta-strip::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.12;
    z-index: -1;
}
.cta-strip h2 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
}
.cta-strip p {
    opacity: 0.78;
    margin-bottom: 24px;
    font-size: 15px;
}
.cta-btn-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
}

/* Related bottom */
.related-block {
    padding: 0 0 76px;
}
.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 26px;
}
.section-heading h2 {
    font-size: 25px;
    font-weight: 800;
    color: #1B1430;
}
.section-heading h2 i {
    color: var(--brand-2);
    margin-right: 8px;
}
.section-heading .more-link {
    font-size: 14px;
    color: var(--brand-1);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.rel-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 6px 20px rgba(21, 12, 40, 0.05);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.rel-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.rel-media {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    position: relative;
}
.rel-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.rel-card:hover .rel-media img {
    transform: scale(1.04);
}
.rel-body {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.rel-tag {
    display: inline-flex;
    align-self: flex-start;
    padding: 4px 12px;
    background: #f5efff;
    color: var(--brand-1);
    font-size: 12px;
    font-weight: 700;
    border-radius: 999px;
    margin-bottom: 12px;
}
.rel-body h3 {
    font-size: 17px;
    line-height: 1.55;
    font-weight: 700;
    color: #211a2c;
    margin-bottom: 10px;
}
.rel-body p {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rel-more {
    margin-top: auto;
    font-size: 13px;
    color: var(--brand-1);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: #d7d1e2;
    margin-top: 40px;
}
.footer a {
    color: #b9b1c7;
}
.footer a:hover {
    color: #fff;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: 36px;
    padding: 64px 0 44px;
}
.footer-brand .brand-name {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
}
.footer-brand .brand-icon {
    width: 42px;
    height: 42px;
}
.footer-brand p {
    margin-top: 18px;
    max-width: 320px;
    color: #8e87a0;
    font-size: 14px;
    line-height: 1.8;
}
.footer-col h5 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}
.footer-col ul li {
    margin-bottom: 11px;
}
.footer-col ul a {
    font-size: 14px;
    color: #9e96ad;
    transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col ul a:hover {
    color: #ffffff;
    padding-left: 5px;
}
.footer-copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    padding: 24px 20px;
    font-size: 13px;
    color: #837e92;
    letter-spacing: 0.02em;
}

/* Responsive */
@media (max-width: 1180px) {
    .top-nav a {
        padding-left: 9px;
        padding-right: 9px;
        font-size: 14px;
    }
    .search-wrap input {
        width: 96px;
    }
    .header-cta {
        padding: 0 16px;
    }
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    .footer-brand {
        grid-column: span 3;
    }
}
@media (max-width: 1024px) {
    .search-wrap {
        display: none;
    }
    .header-cta {
        padding: 0 18px;
        font-size: 14px;
    }
}
@media (max-width: 860px) {
    .top-nav {
        display: none;
    }
    .menu-toggle {
        display: inline-flex;
        margin-left: auto;
    }
    .header-cta {
        display: none;
    }
    .container {
        padding-left: 18px;
        padding-right: 18px;
    }
    .brand-name {
        font-size: 17px;
    }
    .post-card {
        padding: 28px 22px 32px;
    }
    .post-card h1 {
        font-size: 27px;
    }
    .article-content h2 {
        font-size: 23px;
    }
    .post-nav-row {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
        grid-column: span 2;
    }
}
@media (max-width: 640px) {
    .page-section {
        padding: 38px 0 64px;
    }
    .breadcrumbs {
        width: 100%;
    }
    .breadcrumbs .current {
        max-width: 100%;
        white-space: normal;
    }
    .article-top-bar {
        margin-bottom: 28px;
    }
    .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 15px;
    }
    .brand-sub {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        padding-top: 44px;
    }
    .footer-brand {
        grid-column: span 1;
    }
    .footer-copyright {
        line-height: 1.8;
    }
    .cta-btn-row .btn {
        width: 100%;
    }
}

/* roulang page: category1 */
:root {
      --brand-1: #7C3AED;
      --brand-2: #C026D3;
      --brand-3: #F59E0B;
      --brand-4: #F43F5E;
      --dark-1: #150C28;
      --dark-2: #1C1030;
      --bg: #F5F6FA;
      --card: #FFFFFF;
      --text: #1F2430;
      --muted: #647089;
      --border: rgba(21, 12, 40, 0.06);
      --primary-grad: linear-gradient(135deg, #7C3AED 0%, #C026D3 48%, #F59E0B 100%);
      --dark-grad: linear-gradient(135deg, #150C28 0%, #241238 100%);
      --shadow: 0 12px 34px rgba(21, 12, 40, 0.08);
      --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.2);
      --radius-card: 24px;
      --radius-inner: 16px;
      --radius-btn: 999px;
      --max-width: 1200px;
    }

    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.8;
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button,
    input {
      font-family: inherit;
    }
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }
    h1, h2, h3, h4 {
      margin-top: 0;
      color: inherit;
      line-height: 1.3;
    }
    h1 {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.3;
    }
    h2 {
      font-size: 28px;
      font-weight: 800;
    }
    h3 {
      font-size: 22px;
      font-weight: 700;
    }
    p {
      margin: 0 0 16px;
    }
    :focus-visible {
      outline: 3px solid rgba(124, 58, 237, 0.45);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.96);
      border-bottom: 1px solid rgba(21, 12, 40, 0.04);
      box-shadow: 0 1px 0 rgba(21, 12, 40, 0.03);
      backdrop-filter: saturate(180%) blur(10px);
    }
    .header-wrap {
      display: flex;
      align-items: center;
      gap: 24px;
      min-height: 72px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      margin-right: 14px;
    }
    .brand-icon {
      display: grid;
      place-items: center;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--primary-grad);
      color: #fff;
      font-size: 18px;
      box-shadow: 0 8px 18px rgba(124, 58, 237, 0.28);
    }
    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }
    .brand-name {
      font-size: 19px;
      font-weight: 800;
      background: linear-gradient(135deg, #7C3AED 0%, #C026D3 60%, #F59E0B 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: #7C3AED;
      white-space: nowrap;
    }
    .brand-sub {
      font-size: 11px;
      letter-spacing: 0.08em;
      color: var(--muted);
    }
    .top-nav {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 28px;
      margin: 0 auto;
      min-width: 0;
    }
    .top-nav a {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 72px;
      padding: 0 2px;
      font-size: 15px;
      font-weight: 500;
      color: #3A3F4D;
      transition: color 0.2s ease;
    }
    .top-nav a:hover {
      color: var(--brand-1);
    }
    .top-nav a.active {
      color: var(--brand-1);
      font-weight: 600;
    }
    .top-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 12px;
      height: 4px;
      border-radius: 999px;
      background: var(--primary-grad);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      height: 40px;
      padding: 0 16px;
      background: #F3F4F8;
      border-radius: 999px;
      border: 1px solid transparent;
      transition: border 0.2s ease, background 0.2s ease;
    }
    .search-box:focus-within {
      background: #fff;
      border-color: rgba(124, 58, 237, 0.3);
      box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
    }
    .search-box input {
      width: 108px;
      background: transparent;
      border: 0;
      outline: none;
      font-size: 14px;
      color: var(--text);
    }
    .search-box input::placeholder {
      color: #9AA1AF;
    }
    .search-box i {
      color: var(--muted);
      font-size: 14px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-btn);
      border: 1px solid transparent;
      padding: 11px 22px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }
    .btn i {
      font-size: 15px;
    }
    .btn-primary {
      background: var(--primary-grad);
      color: #fff;
      box-shadow: 0 8px 20px rgba(124, 58, 237, 0.25);
    }
    .btn-primary:hover {
      filter: brightness(1.05);
      transform: translateY(-1px);
      box-shadow: 0 12px 28px rgba(124, 58, 237, 0.32);
    }
    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 4px 10px rgba(124, 58, 237, 0.2);
    }
    .btn-light {
      background: #fff;
      color: var(--dark-1);
      border-color: rgba(255, 255, 255, 0.35);
      box-shadow: 0 8px 22px rgba(21, 12, 40, 0.16);
    }
    .btn-light:hover {
      background: rgba(255, 255, 255, 0.94);
      transform: translateY(-1px);
    }
    .btn-light:active {
      transform: translateY(1px);
    }
    .btn-ghost-light {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.32);
    }
    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, 0.16);
      border-color: rgba(255, 255, 255, 0.55);
    }
    .btn-ghost {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.18);
      color: rgba(255, 255, 255, 0.92);
    }
    .burger {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      border: 1px solid rgba(21, 12, 40, 0.1);
      background: #F7F7FB;
      color: var(--dark-1);
      align-items: center;
      justify-content: center;
      font-size: 18px;
      cursor: pointer;
    }

    .category-hero {
      position: relative;
      background:
        linear-gradient(115deg, rgba(245, 246, 250, 0.98) 10%, rgba(245, 246, 250, 0.88) 42%, rgba(124, 58, 237, 0.14) 100%),
        url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
      padding: 76px 0 64px;
      border-bottom: 1px solid rgba(21, 12, 40, 0.04);
    }
    .hero-copy {
      padding-left: 0;
    }
    .hero-crumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--muted);
      margin-bottom: 14px;
      flex-wrap: wrap;
    }
    .hero-crumb a {
      color: var(--muted);
      transition: color 0.2s ease;
    }
    .hero-crumb a:hover {
      color: var(--brand-1);
    }
    .hero-crumb span {
      color: var(--text);
    }
    .category-hero h1 {
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }
    .hero-lead {
      font-size: 17px;
      color: #52607A;
      max-width: 680px;
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 26px;
    }
    .pill-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid rgba(21, 12, 40, 0.08);
      font-size: 13px;
      font-weight: 600;
      color: #3A3F4D;
      box-shadow: 0 4px 12px rgba(21, 12, 40, 0.04);
      transition: border 0.2s ease, transform 0.2s ease;
    }
    .pill-tag:hover {
      border-color: var(--brand-1);
      color: var(--brand-1);
    }
    .hero-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }
    .hero-visual {
      position: relative;
      margin-top: 10px;
    }
    .hero-window {
      border-radius: 28px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(255, 255, 255, 0.85);
      box-shadow: 0 24px 60px rgba(21, 12, 40, 0.18);
      overflow: hidden;
      backdrop-filter: blur(16px);
    }
    .hero-window img {
      width: 100%;
      height: 270px;
      object-fit: cover;
    }
    .hero-window-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 18px;
      background: rgba(255, 255, 255, 0.9);
      font-size: 14px;
      color: var(--muted);
    }
    .hero-window-meta span {
      display: inline-flex;
      gap: 8px;
      align-items: center;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10B981;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.14);
    }
    .float-note {
      position: absolute;
      right: -12px;
      top: 32px;
      background: rgba(255, 255, 255, 0.94);
      border: 1px solid rgba(124, 58, 237, 0.12);
      border-radius: 16px;
      padding: 12px 16px;
      box-shadow: 0 14px 30px rgba(21, 12, 40, 0.14);
      font-size: 13px;
      font-weight: 600;
      color: var(--dark-1);
      backdrop-filter: blur(8px);
    }
    .float-note i {
      color: var(--brand-2);
      margin-right: 6px;
    }

    .page-main {
      padding: 68px 0 24px;
    }
    .content-panel {
      background: #fff;
      border-radius: 24px;
      box-shadow: var(--shadow);
      padding: 38px;
      margin-bottom: 34px;
      transition: box-shadow 0.2s ease;
    }
    .content-panel:hover {
      box-shadow: 0 14px 40px rgba(21, 12, 40, 0.09);
    }
    .section-kicker {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .kicker-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(192, 38, 211, 0.12));
      color: var(--brand-1);
      font-size: 13px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 999px;
    }
    .panel-head {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: flex-end;
      margin-bottom: 20px;
    }
    .panel-head p {
      color: var(--muted);
      margin: 8px 0 0;
      max-width: 640px;
    }
    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand-1);
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      transition: color 0.2s ease;
    }
    .text-link:hover {
      color: var(--brand-2);
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }
    .view-card {
      display: flex;
      flex-direction: column;
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid rgba(21, 12, 40, 0.05);
      background: #fff;
      box-shadow: 0 10px 24px rgba(21, 12, 40, 0.06);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .view-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 38px rgba(21, 12, 40, 0.11);
    }
    .entry-card.feature {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    }
    .entry-card.feature .card-cover {
      border-radius: 0;
    }
    .card-cover {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #eee9f5;
    }
    .entry-card.feature .card-cover {
      aspect-ratio: auto;
      min-height: 100%;
    }
    .card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .card-body {
      display: flex;
      flex-direction: column;
      padding: 22px;
      flex: 1;
    }
    .feature .card-body {
      justify-content: center;
      padding: 30px;
    }
    .card-body h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }
    .card-body p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 16px;
      flex: 1;
    }
    .card-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 13px;
    }
    .btn-soft {
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(192, 38, 211, 0.08));
      color: var(--brand-1);
      border-color: rgba(124, 58, 237, 0.12);
    }
    .btn-soft:hover {
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(192, 38, 211, 0.16));
      transform: translateY(-1px);
    }
    .btn-sm.btn-soft:active {
      transform: translateY(1px);
    }
    .btn-soft-outline {
      color: var(--dark-1);
      border-color: rgba(21, 12, 40, 0.14);
    }
    .btn-soft-outline:hover {
      border-color: var(--brand-1);
      color: var(--brand-1);
      background: rgba(124, 58, 237, 0.05);
    }

    .choice-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 4px;
    }
    .choice-row {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 18px 20px;
      border-radius: 16px;
      border: 1px solid rgba(21, 12, 40, 0.05);
      background: #FAFAFD;
      transition: border 0.2s ease, background 0.2s ease, transform 0.2s ease;
    }
    .choice-row:hover {
      border-color: rgba(124, 58, 237, 0.25);
      background: #fff;
      transform: translateX(3px);
    }
    .choice-mark {
      display: grid;
      place-items: center;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      flex-shrink: 0;
      background: rgba(124, 58, 237, 0.1);
      color: var(--brand-1);
      font-size: 18px;
    }
    .choice-main {
      flex: 1;
      min-width: 0;
    }
    .choice-main b {
      display: block;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 3px;
    }
    .choice-main p {
      margin: 0;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }
    .choice-link {
      font-size: 14px;
      color: var(--brand-1);
      font-weight: 600;
      flex-shrink: 0;
      transition: color 0.2s ease;
    }
    .choice-link:hover {
      color: var(--brand-2);
    }

    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      margin-top: 8px;
    }
    .step-item {
      position: relative;
      background: #FBFBFF;
      border: 1px solid rgba(21, 12, 40, 0.05);
      border-radius: 18px;
      padding: 22px 18px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .step-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 26px rgba(21, 12, 40, 0.08);
    }
    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 30px;
      height: 30px;
      padding: 0 8px;
      border-radius: 999px;
      background: var(--primary-grad);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .step-item b {
      display: block;
      font-size: 16px;
      margin-bottom: 6px;
    }
    .step-item span {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.7;
      display: block;
    }

    .compat-panel {
      background: var(--dark-grad);
      color: #fff;
      border-radius: 24px;
      padding: 34px;
      box-shadow: 0 20px 50px rgba(21, 12, 40, 0.2);
    }
    .compat-title {
      font-size: 23px;
      margin-bottom: 8px;
    }
    .compat-panel .lead-line {
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
      margin-bottom: 24px;
    }
    .compat-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .compat-line {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: center;
      padding: 14px 16px;
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .compat-name {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
      font-size: 15px;
    }
    .compat-name i {
      color: #F0B547;
    }
    .compat-value {
      color: rgba(255, 255, 255, 0.78);
      font-size: 14px;
      text-align: right;
    }

    .faq-item {
      background: #fff;
      border: 1px solid rgba(21, 12, 40, 0.07);
      border-radius: 16px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: border 0.2s ease, box-shadow 0.2s ease;
    }
    .faq-item:hover {
      border-color: rgba(124, 58, 237, 0.22);
    }
    .faq-item.active {
      border-color: rgba(124, 58, 237, 0.35);
      box-shadow: 0 12px 28px rgba(124, 58, 237, 0.08);
    }
    .faq-trigger {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      background: transparent;
      border: 0;
      padding: 18px 20px;
      text-align: left;
      cursor: pointer;
      color: var(--text);
      font-size: 16px;
      font-weight: 600;
    }
    .faq-trigger i {
      color: var(--muted);
      transition: transform 0.2s ease, color 0.2s ease;
      font-size: 15px;
    }
    .faq-item.active .faq-trigger i {
      transform: rotate(180deg);
      color: var(--brand-1);
    }
    .faq-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.2s ease;
      padding: 0 20px;
      font-size: 15px;
      color: var(--muted);
      line-height: 1.8;
    }
    .faq-item.active .faq-panel {
      max-height: 340px;
      padding: 0 20px 20px;
    }

    .side-card {
      background: #fff;
      border-radius: 24px;
      box-shadow: var(--shadow);
      padding: 24px;
      margin-bottom: 20px;
    }
    .side-card:first-child {
      position: sticky;
      top: 96px;
    }
    .side-card h4 {
      font-size: 17px;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }
    .side-card h4 i {
      color: var(--brand-1);
    }
    .toc-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .toc-links a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 8px 10px;
      border-radius: 10px;
      color: #3A3F4D;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease;
    }
    .toc-links a:hover {
      background: rgba(124, 58, 237, 0.06);
      color: var(--brand-1);
    }
    .toc-links i {
      font-size: 11px;
      color: #BBB4CB;
    }
    .aside-divider {
      height: 1px;
      background: rgba(21, 12, 40, 0.05);
      margin: 18px 0;
    }
    .aside-note {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.8;
    }
    .aside-btn {
      width: 100%;
      margin-top: 16px;
    }
    .service-info {
      display: flex;
      gap: 12px;
      margin-top: 16px;
      font-size: 13px;
      color: var(--muted);
    }
    .service-info i {
      color: var(--brand-3);
    }

    .cta-band {
      background: linear-gradient(115deg, #150C28, #300E50);
      border-radius: 28px;
      margin: 60px 0 80px;
      padding: 54px 40px;
      color: #fff;
      box-shadow: 0 24px 60px rgba(21, 12, 40, 0.3);
    }
    .cta-inner {
      max-width: 980px;
      margin: 0 auto;
      text-align: center;
    }
    .cta-inner h2 {
      font-size: 30px;
      margin-bottom: 12px;
    }
    .cta-inner p {
      color: rgba(255, 255, 255, 0.72);
      max-width: 720px;
      margin: 0 auto 28px;
    }
    .cta-btns {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer {
      background: var(--dark-1);
      color: rgba(255, 255, 255, 0.85);
      padding: 56px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
      gap: 30px;
      padding-bottom: 40px;
    }
    .footer-brand p {
      color: rgba(255, 255, 255, 0.55);
      font-size: 14px;
      line-height: 1.8;
      margin: 18px 0 0;
    }
    .footer-col h5 {
      font-size: 15px;
      color: #fff;
      margin: 0 0 16px;
      font-weight: 700;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: rgba(255, 255, 255, 0.58);
      font-size: 14px;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }
    .footer-col a:hover {
      color: #fff;
      padding-left: 3px;
    }
    .footer-copyright {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      text-align: center;
      padding: 18px 20px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.42);
    }

    @media (max-width: 1023px) {
      h1 {
        font-size: 30px;
      }
      h2 {
        font-size: 24px;
      }
      .top-nav {
        position: absolute;
        display: none;
        flex-direction: column;
        top: 72px;
        left: 0;
        right: 0;
        gap: 0;
        background: #fff;
        border-bottom: 1px solid rgba(21, 12, 40, 0.06);
        box-shadow: 0 16px 36px rgba(21, 12, 40, 0.1);
        padding: 10px 24px 18px;
        z-index: 50;
        align-items: stretch;
        justify-content: flex-start;
      }
      .menu-open .top-nav {
        display: flex;
      }
      .top-nav a {
        justify-content: flex-start;
        min-height: 44px;
        padding: 10px 2px;
        border-bottom: 1px solid rgba(21, 12, 40, 0.04);
      }
      .top-nav a:last-child {
        border-bottom: 0;
      }
      .top-nav a.active::after {
        left: 0;
        right: auto;
        top: 10px;
        bottom: 10px;
        width: 4px;
        height: auto;
      }
      .search-box {
        width: 38px;
        padding: 0;
        border-radius: 50%;
        justify-content: center;
      }
      .search-box input {
        display: none;
      }
      .burger {
        display: inline-flex;
      }
      .btn.nav-cta {
        padding: 10px 16px;
        font-size: 14px;
      }
      .category-hero {
        padding: 52px 0 44px;
      }
      .content-panel {
        padding: 24px;
      }
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 767px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .header-wrap {
        gap: 10px;
      }
      .brand-sub {
        display: none;
      }
      .btn.nav-cta {
        display: none;
      }
      .cta-band {
        margin: 40px 0 50px;
        padding: 36px 20px;
      }
    }

    @media (max-width: 639px) {
      .container {
        padding: 0 16px;
      }
      .entry-grid {
        grid-template-columns: 1fr;
      }
      .entry-card.feature {
        grid-column: auto;
        display: block;
      }
      .hero-vsual {
        margin-top: 14px;
      }
      .card-cover img {
        max-height: 240px;
      }
      .card-body {
        padding: 18px;
      }
      .step-grid {
        grid-template-columns: 1fr;
      }
      .choice-row {
        flex-wrap: wrap;
      }
      .choice-link {
        margin-left: 60px;
      }
      .compat-panel {
        padding: 24px 18px;
      }
      .compat-line {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      .compat-value {
        text-align: left;
      }
      .cta-btns .btn {
        width: 100%;
      }
      .hero-window img {
        height: 200px;
      }
    }

/* roulang page: category3 */
:root {
      --brand-1: #7C3AED;
      --brand-2: #C026D3;
      --brand-3: #F59E0B;
      --brand-4: #F43F5E;
      --bg: #F5F6FA;
      --card: #FFFFFF;
      --text: #1F2430;
      --muted: #647089;
      --border: rgba(21, 12, 40, 0.06);
      --dark: #150C28;
      --dark-2: #1C1030;
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow: 0 12px 34px rgba(21, 12, 40, 0.08);
      --shadow-hover: 0 18px 46px rgba(21, 12, 40, 0.12);
      --transition: all 0.25s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
      font-family: inherit;
    }

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

    .container-lg {
      max-width: 1280px;
    }

    section {
      display: block;
    }

    .section-title {
      margin: 0 0 12px;
      font-size: 28px;
      line-height: 1.4;
      font-weight: 800;
      color: var(--text);
      letter-spacing: -0.01em;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 18px;
    }

    .section-sub {
      max-width: 760px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 700;
      color: var(--brand-2);
      letter-spacing: 0.02em;
      margin-bottom: 10px;
    }

    .tag-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .tag-pills a {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      background: #FFFFFF;
      border: 1px solid rgba(124, 58, 237, 0.14);
      border-radius: 999px;
      font-size: 13px;
      color: #3F2D6B;
      box-shadow: 0 4px 12px rgba(21, 12, 40, 0.04);
    }

    .tag-pills a:hover {
      border-color: #7C3AED;
      color: var(--brand-1);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 22px;
      border: 0;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      line-height: 1;
      cursor: pointer;
      text-align: center;
      box-shadow: 0 10px 24px rgba(192, 38, 211, 0.22);
      transition: var(--transition);
    }

    .btn:hover {
      filter: brightness(1.08);
      box-shadow: 0 14px 32px rgba(192, 38, 211, 0.28);
      color: #fff;
    }

    .btn:active {
      transform: translateY(1px);
      filter: brightness(1);
    }

    .btn:focus-visible,
    .top-nav a:focus-visible,
    .menu-toggle:focus-visible,
    .header-search input:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(124, 58, 237, 0.35);
      outline-offset: 3px;
    }

    .btn-secondary {
      background: #FFFFFF;
      border: 1px solid rgba(124, 58, 237, 0.22);
      color: #4C1D95;
      box-shadow: none;
    }

    .btn-secondary:hover {
      background: #F7F5FF;
      color: var(--brand-1);
      box-shadow: var(--shadow);
    }

    .btn-dark {
      background: linear-gradient(135deg, #150C28, #2A1650);
      box-shadow: 0 14px 30px rgba(21, 12, 40, 0.28);
    }

    .btn-gold {
      background: linear-gradient(135deg, #D97706, #F59E0B);
      box-shadow: 0 10px 24px rgba(245, 158, 11, 0.25);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 1px 0 rgba(21, 12, 40, 0.02);
    }

    .header-inner {
      display: flex;
      align-items: center;
      height: 72px;
      gap: 24px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      white-space: nowrap;
    }

    .brand-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--brand-1), var(--brand-2) 50%, var(--brand-3));
      color: #fff;
      font-size: 20px;
      box-shadow: 0 10px 24px rgba(124, 58, 237, 0.25);
      flex: none;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .brand-name {
      font-weight: 800;
      font-size: 19px;
      color: #12081F;
      letter-spacing: 0.01em;
    }

    .brand-sub {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.18em;
      color: #8E83A8;
      margin-top: 4px;
    }

    .top-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      margin-left: 12px;
    }

    .top-nav a {
      display: inline-flex;
      align-items: center;
      height: 72px;
      font-size: 15px;
      color: #3D3A4F;
      position: relative;
      font-weight: 500;
    }

    .top-nav a:hover {
      color: var(--brand-1);
    }

    .top-nav a::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 0;
      width: 0;
      height: 4px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--brand-1), var(--brand-3));
      transform: translateX(-50%);
      transition: all 0.3s ease;
    }

    .top-nav a:hover::after,
    .top-nav a.active::after {
      width: 24px;
    }

    .top-nav a.active {
      color: var(--brand-1);
      font-weight: 700;
    }

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

    .header-search {
      display: flex;
      align-items: center;
      background: #F4F3F8;
      border-radius: 999px;
      padding: 0 8px 0 16px;
      min-width: 180px;
      height: 40px;
      border: 1px solid transparent;
      transition: var(--transition);
    }

    .header-search:focus-within {
      background: #FFFFFF;
      border-color: rgba(124, 58, 237, 0.25);
      box-shadow: 0 6px 18px rgba(21, 12, 40, 0.06);
    }

    .header-search input {
      border: 0;
      background: transparent;
      outline: none;
      width: 100%;
      font-size: 14px;
      color: var(--text);
    }

    .header-search input::placeholder {
      color: #9A94A8;
    }

    .header-search button {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      border: 0;
      background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
      color: #fff;
      cursor: pointer;
      flex: none;
      transition: var(--transition);
    }

    .header-search button:hover {
      transform: scale(1.05);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      margin-left: auto;
      border: 0;
      background: #F4F3F8;
      color: #1C1030;
      border-radius: 12px;
      font-size: 18px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .mobile-nav {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      z-index: 55;
      background: #fff;
      box-shadow: 0 24px 40px rgba(21, 12, 40, 0.12);
      border-radius: 0 0 24px 24px;
      padding: 12px 24px 24px;
    }

    .mobile-nav.open {
      display: block;
    }

    .mobile-nav a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 4px;
      border-bottom: 1px solid rgba(21, 12, 40, 0.05);
      font-weight: 500;
      color: var(--text);
    }

    .mobile-nav a:hover {
      color: var(--brand-1);
    }

    .mobile-nav a.active {
      color: var(--brand-1);
      font-weight: 700;
    }

    .mobile-nav .btn {
      margin-top: 20px;
      width: 100%;
    }

    .page-hero {
      background: linear-gradient(135deg, #F6F3FB 0%, #FFFFFF 58%, #FFF7F2 100%);
      position: relative;
      overflow: hidden;
      padding-top: 72px;
      padding-bottom: 64px;
      border-bottom: 1px solid var(--border);
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url("/assets/images/backpic/back-2.png");
      background-size: cover;
      background-position: center;
      opacity: 0.08;
      pointer-events: none;
    }

    .hero-halo {
      position: absolute;
      width: 480px;
      height: 480px;
      right: -180px;
      top: -220px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.16), transparent 66%);
      pointer-events: none;
    }

    .page-hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
      gap: 48px;
      align-items: center;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      font-size: 13px;
      color: #8A86A0;
      margin-bottom: 24px;
    }

    .breadcrumb a {
      color: #8A86A0;
    }

    .breadcrumb a:hover {
      color: var(--brand-1);
    }

    .hero-title h1 {
      font-size: 36px;
      line-height: 1.3;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin: 4px 0 16px;
      color: #160B24;
    }

    .hero-title h1 span {
      background: linear-gradient(90deg, var(--brand-1), var(--brand-3));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-title .lead {
      font-size: 16px;
      line-height: 1.9;
      color: #4C4860;
      max-width: 520px;
      margin-bottom: 20px;
    }

    .hero-note {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(124, 58, 237, 0.07);
      padding: 6px 14px;
      border-radius: 999px;
      color: #5A2FA0;
      font-size: 13px;
      font-weight: 600;
    }

    .hero-visual-card {
      position: relative;
      background: #FFFFFF;
      border-radius: 32px;
      box-shadow: var(--shadow-hover);
      border: 1px solid rgba(21, 12, 40, 0.06);
      overflow: hidden;
      padding: 12px;
    }

    .hero-visual-card img {
      width: 100%;
      height: 360px;
      object-fit: cover;
      border-radius: 22px;
    }

    .hero-visual-card .visual-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 18px 18px 12px;
      border-bottom: 1px solid var(--border);
    }

    .visual-meta p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .visual-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #F5F3FF;
      border-radius: 999px;
      padding: 6px 12px;
      font-size: 12px;
      font-weight: 700;
      color: var(--brand-1);
    }

    .float-card {
      position: absolute;
      left: -14px;
      bottom: 32px;
      background: rgba(255, 255, 255, 0.86);
      backdrop-filter: blur(12px);
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, 0.7);
      box-shadow: var(--shadow);
      padding: 12px 16px;
      font-size: 13px;
      color: var(--text);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .float-card i {
      color: var(--brand-3);
      font-size: 18px;
    }

    .category-metrics {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      padding: 28px 0;
    }

    .metric-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 16px;
      background: #F8F7FC;
      border-radius: var(--radius-md);
    }

    .metric-icon {
      width: 44px;
      height: 44px;
      flex: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: linear-gradient(135deg, #F59E0B, #F7B32B);
      color: #fff;
      font-size: 18px;
    }

    .metric-text strong {
      display: block;
      font-size: 17px;
      line-height: 1.3;
      color: #1A1028;
    }

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

    .library-section {
      padding: 80px 0 60px;
      background: #FFFFFF;
    }

    .library-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 40px;
      align-items: start;
    }

    .library-main {
      min-width: 0;
    }

    .library-head {
      display: flex;
      align-items: flex-end;
      gap: 14px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }

    .library-intro {
      color: var(--muted);
      font-size: 15px;
      margin-bottom: 34px;
      max-width: 700px;
    }

    .guide-card {
      display: grid;
      grid-template-columns: 210px 1fr;
      gap: 20px;
      background: #FFFFFF;
      border: 1px solid rgba(21, 12, 40, 0.06);
      border-radius: 22px;
      padding: 14px;
      box-shadow: 0 8px 24px rgba(21, 12, 40, 0.04);
      margin-bottom: 24px;
      transition: var(--transition);
    }

    .guide-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
      border-color: rgba(124, 58, 237, 0.16);
    }

    .guide-media {
      position: relative;
      border-radius: 16px;
      overflow: hidden;
      aspect-ratio: 4 / 3;
    }

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

    .guide-card:hover .guide-media img {
      transform: scale(1.04);
    }

    .guide-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 55%, rgba(21, 12, 40, 0.4));
    }

    .guide-cat {
      position: absolute;
      left: 10px;
      top: 10px;
      z-index: 2;
      background: rgba(255, 255, 255, 0.92);
      color: var(--brand-1);
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 11px;
      font-weight: 700;
    }

    .guide-body {
      padding: 8px 12px 8px 0;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 0;
    }

    .guide-body h3 {
      font-size: 21px;
      line-height: 1.4;
      font-weight: 800;
      margin: 0 0 10px;
      color: #160B24;
    }

    .guide-body p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
      margin: 0 0 14px;
    }

    .guide-list {
      list-style: none;
      margin: 0 0 14px;
      padding: 0;
      display: grid;
      gap: 6px;
    }

    .guide-list li {
      display: flex;
      align-items: center;
      gap: 8px;
      color: #4D4965;
      font-size: 13px;
    }

    .guide-list li i {
      color: #7C3AED;
      font-size: 12px;
    }

    .link-arrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand-1);
      font-weight: 600;
      font-size: 14px;
    }

    .link-arrow i {
      font-size: 12px;
      transition: transform 0.2s ease;
    }

    .guide-card:hover .link-arrow i {
      transform: translateX(4px);
    }

    .aside-wrap {
      position: sticky;
      top: 100px;
    }

    .aside-card {
      background: #F9F8FD;
      border: 1px solid rgba(21, 12, 40, 0.06);
      border-radius: 24px;
      padding: 22px;
      margin-bottom: 24px;
    }

    .aside-card h4 {
      font-size: 15px;
      margin: 0 0 8px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: #160B24;
      font-weight: 800;
    }

    .aside-index {
      list-style: none;
      margin: 14px 0 0;
      padding: 0;
      display: grid;
      gap: 4px;
    }

    .aside-index a {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 12px;
      border-radius: 12px;
      color: #4D4965;
      font-size: 14px;
      transition: var(--transition);
    }

    .aside-index a:hover {
      background: rgba(124, 58, 237, 0.07);
      color: var(--brand-1);
      padding-left: 18px;
    }

    .aside-index i {
      color: var(--brand-3);
      font-size: 11px;
    }

    .aside-contact {
      padding: 20px 22px;
    }

    .aside-contact h4 {
      font-size: 16px;
    }

    .aside-contact p {
      font-size: 13px;
      color: var(--muted);
      margin: 0 0 16px;
    }

    .scenario-area {
      background: #F5F6FA;
      padding: 76px 0 70px;
    }

    .scenario-cards {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 20px;
      margin-top: 32px;
    }

    .scenario-main {
      grid-column: span 7;
      background: linear-gradient(135deg, #FFFFFF, #F7F5FF);
      border-radius: 28px;
      border: 1px solid rgba(21, 12, 40, 0.06);
      padding: 28px;
      display: flex;
      align-items: center;
      gap: 24px;
      box-shadow: var(--shadow);
      min-height: 240px;
    }

    .scenario-main img {
      width: 46%;
      height: 180px;
      object-fit: cover;
      border-radius: 20px;
      flex: none;
    }

    .scenario-main h3,
    .scenario-card h3 {
      font-size: 19px;
      margin: 0 0 8px;
      color: #160B24;
      font-weight: 800;
    }

    .scenario-main p,
    .scenario-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .scenario-small {
      grid-column: span 5;
    }

    .scenario-small .scenario-card + .scenario-card {
      margin-top: 20px;
    }

    .scenario-card {
      background: #FFFFFF;
      border-radius: 20px;
      padding: 22px;
      box-shadow: 0 8px 24px rgba(21, 12, 40, 0.04);
      border: 1px solid rgba(21, 12, 40, 0.05);
      display: flex;
      gap: 16px;
      align-items: flex-start;
      transition: var(--transition);
    }

    .scenario-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-main:hover,
    .scenario-card:hover {
      border-color: rgba(124, 58, 237, 0.18);
    }

    .scenario-icon {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      flex: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
    }

    .scenario-card:nth-child(2) .scenario-icon {
      background: linear-gradient(135deg, #F59E0B, #F43F5E);
    }

    .process-area {
      background: #FFFFFF;
      padding: 76px 0;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 40px;
    }

    .step-item {
      background: #FBF9FE;
      border-radius: 24px;
      padding: 28px 22px;
      border: 1px solid rgba(21, 12, 40, 0.05);
      position: relative;
      transition: var(--transition);
    }

    .step-item:hover {
      background: #FFFFFF;
      box-shadow: var(--shadow);
      transform: translateY(-4px);
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-1), var(--brand-3));
      color: #fff;
      font-weight: 800;
      font-size: 15px;
      margin-bottom: 20px;
    }

    .step-item h3 {
      font-size: 16px;
      font-weight: 800;
      margin: 0 0 8px;
      color: #160B24;
    }

    .step-item p {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.8;
      margin: 0;
    }

    .faq-area {
      background: #F5F6FA;
      padding: 76px 0;
    }

    .faq-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 40px;
      align-items: start;
    }

    .faq-acc {
      background: #FFFFFF;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(21, 12, 40, 0.06);
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
      background: #fff;
    }

    .faq-item:last-child {
      border-bottom: 0;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      text-align: left;
      background: transparent;
      border: 0;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: #231A38;
      cursor: pointer;
      transition: var(--transition);
    }

    .faq-question:hover {
      color: var(--brand-1);
    }

    .faq-icon {
      width: 30px;
      height: 30px;
      flex: none;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #F3F0F8;
      color: #5E567A;
      font-size: 13px;
      transition: transform 0.3s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
      color: #fff;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 22px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.85;
      border-left: 4px solid transparent;
    }

    .faq-item.open {
      border-left: 4px solid transparent;
      border-left-color: var(--brand-1);
    }

    .faq-item.open .faq-answer {
      display: block;
      padding-left: 50px;
    }

    .faq-side {
      width: 320px;
      background: linear-gradient(155deg, #150C28, #38175C);
      border-radius: 28px;
      padding: 30px 26px;
      color: #fff;
      position: sticky;
      top: 100px;
    }

    .faq-side h4 {
      font-size: 19px;
      margin: 0 0 10px;
      color: #fff;
    }

    .faq-side p {
      font-size: 14px;
      line-height: 1.8;
      margin: 0 0 20px;
      color: rgba(255, 255, 255, 0.66);
    }

    .faq-side a {
      width: 100%;
      justify-content: center;
      margin-top: 4px;
    }

    .section-cta {
      background: linear-gradient(135deg, #150C28, #1F1137 50%, #250F37);
      padding: 70px 0;
      position: relative;
      overflow: hidden;
    }

    .section-cta::before {
      content: "";
      position: absolute;
      right: -140px;
      top: -180px;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(192, 38, 211, 0.24), transparent 65%);
    }

    .cta-inner {
      position: relative;
      text-align: center;
      max-width: 760px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      color: #FFFFFF;
      font-size: 28px;
      line-height: 1.4;
      font-weight: 800;
      margin: 0 0 16px;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, 0.7);
      font-size: 15px;
      margin: 0 auto 28px;
      max-width: 680px;
    }

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

    .footer {
      background: #150C28;
      color: rgba(255, 255, 255, 0.8);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.7fr 0.7fr 0.7fr 0.7fr;
      gap: 40px;
      padding: 60px 0 40px;
      align-items: start;
    }

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

    .footer-brand .brand-name {
      color: #fff;
    }

    .footer-brand p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      max-width: 320px;
      margin: 14px 0 0;
    }

    .footer-col h5 {
      font-size: 16px;
      color: #fff;
      margin: 0 0 14px;
      font-weight: 700;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-col li {
      margin-bottom: 8px;
    }

    .footer-col a {
      color: rgba(255, 255, 255, 0.57);
      font-size: 14px;
      line-height: 1.6;
    }

    .footer-col a:hover {
      color: #F5B047;
    }

    .footer-copyright {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 18px 0;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.46);
    }

    @media (max-width: 1024px) {
      .top-nav {
        display: none;
      }

      .header-search {
        display: none;
      }

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

      .page-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .hero-title h1 {
        font-size: 32px;
      }

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

      .library-layout,
      .faq-layout {
        grid-template-columns: 1fr;
      }

      .aside-wrap,
      .faq-side {
        position: relative;
        top: auto;
        width: 100%;
      }

      .faq-side {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
      }

      .scenario-main {
        grid-column: span 12;
        flex-direction: column;
        align-items: flex-start;
      }

      .scenario-main img {
        width: 100%;
        height: 220px;
      }

      .scenario-small {
        grid-column: span 12;
      }

      .scenario-small .scenario-card + .scenario-card {
        margin-top: 20px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }
    }

    @media (max-width: 640px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .site-header {
        height: auto;
      }

      .header-inner {
        height: 64px;
        gap: 10px;
      }

      .brand-name {
        font-size: 17px;
      }

      .brand-icon {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        font-size: 17px;
      }

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

      .page-hero {
        padding-top: 50px;
        padding-bottom: 44px;
      }

      .hero-title h1 {
        font-size: 28px;
        line-height: 1.35;
      }

      .hero-visual-card img {
        height: 200px;
      }

      .float-card {
        left: 8px;
        bottom: 14px;
      }

      .tag-pills {
        gap: 8px;
      }

      .tag-pills a {
        font-size: 12px;
        padding: 7px 12px;
      }

      .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 22px 0;
      }

      .metric-item {
        padding: 12px;
        gap: 10px;
      }

      .metric-icon {
        width: 36px;
        height: 36px;
        font-size: 15px;
      }

      .metric-text strong {
        font-size: 15px;
      }

      .metric-text span {
        font-size: 12px;
      }

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

      .library-section,
      .scenario-area,
      .process-area,
      .faq-area {
        padding: 52px 0 44px;
      }

      .guide-card {
        grid-template-columns: 1fr;
        padding: 10px;
      }

      .guide-media img {
        height: auto;
      }

      .guide-body {
        padding: 8px;
      }

      .guide-body p {
        font-size: 13px;
      }

      .scenario-main,
      .scenario-card {
        padding: 18px;
      }

      .scenario-main img {
        height: 160px;
      }

      .process-steps {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .step-item {
        padding: 20px 18px;
      }

      .faq-question {
        font-size: 15px;
        padding: 16px;
      }

      .faq-item.open .faq-answer {
        padding-left: 16px;
        padding-right: 16px;
        font-size: 14px;
      }

      .cta-inner h2 {
        font-size: 23px;
      }

      .cta-actions {
        flex-direction: column;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        padding: 44px 0 24px;
      }

      .footer-brand p {
        max-width: 100%;
      }
    }

/* roulang page: category2 */
:root {
  --brand-1: #7C3AED;
  --brand-2: #C026D3;
  --brand-3: #F59E0B;
  --brand-4: #F43F5E;
  --ink: #1F2430;
  --muted: #647089;
  --line: rgba(21, 12, 40, 0.07);
  --deep: #150C28;
  --deep-2: #1C1030;
  --bg-body: #F5F6FA;
  --white: #FFFFFF;
  --radius-card: 24px;
  --radius-sm: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 34px rgba(21, 12, 40, 0.08);
  --shadow-deep: 0 20px 50px rgba(0, 0, 0, 0.24);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg-body);
  color: var(--ink);
  line-height: 1.75;
  letter-spacing: 0.01em;
}

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

ul,
ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

button,
input {
  font-family: var(--font);
  font-size: inherit;
}

button {
  border: 0;
  cursor: pointer;
  background: transparent;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(124, 58, 237, 0.28);
  outline-offset: 3px;
  border-radius: 8px;
}

.container,
.grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-1);
  letter-spacing: 0.04em;
}

.section-overline {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-1);
}

.section-overline::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--brand-1), var(--brand-3));
}

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  font-weight: 800;
  color: var(--ink);
}

h1 {
  font-size: 42px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 28px;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

h3 {
  font-size: 21px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  height: 72px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(10px);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, var(--brand-1), var(--brand-2) 58%, var(--brand-3));
  box-shadow: 0 10px 20px rgba(124, 58, 237, 0.25);
  color: #fff;
  font-size: 20px;
  line-height: 1;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.brand-sub {
  font-size: 10px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.14em;
  transform: translateY(2px);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.top-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: #394050;
  padding: 26px 0 24px;
}

.top-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--brand-1), var(--brand-2), var(--brand-3));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease;
}

.top-nav a:hover,
.top-nav a.active {
  color: var(--brand-1);
}

.top-nav a.active::after {
  transform: scaleX(1);
}

.top-nav a:hover::after {
  transform: scaleX(0.6);
}

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

.search-form {
  display: flex;
  align-items: center;
  width: 218px;
  height: 42px;
  padding-left: 16px;
  border-radius: var(--radius-pill);
  background: #F5F6FA;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.search-form:focus-within {
  background: #fff;
  border-color: rgba(124, 58, 237, 0.16);
  box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.08);
}

.search-form input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: none;
  font-size: 14px;
  color: var(--ink);
}

.search-form input::placeholder {
  color: #A0A7B5;
}

.search-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 42px;
  border-radius: 50%;
  color: var(--brand-1);
  font-size: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 26px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  white-space: nowrap;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #7C3AED 0%, #C026D3 56%, #F59E0B 135%);
  box-shadow: 0 10px 24px rgba(124, 58, 237, 0.24);
}

.btn-primary:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(124, 58, 237, 0.3);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  color: var(--brand-1);
  background: #fff;
  border: 1px solid rgba(124, 58, 237, 0.28);
}

.btn-outline:hover {
  border-color: var(--brand-1);
  background: #F7F1FF;
  color: var(--brand-1);
  transform: translateY(-1px);
}

.btn-light {
  color: var(--deep);
  background: #fff;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.16);
}

.btn-light:hover {
  transform: translateY(-2px);
  background: #F7F1FF;
  color: var(--brand-1);
  box-shadow: 0 20px 38px rgba(0, 0, 0, 0.2);
}

.btn-outline-light {
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.38);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
}

.btn-sm {
  height: 42px;
  padding: 0 20px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

.mobile-nav-cta {
  display: none;
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: var(--ink);
  font-size: 20px;
  background: #F5F6FA;
  align-items: center;
  justify-content: center;
}

.cat-hero {
  position: relative;
  overflow: hidden;
  padding: 78px 0 72px;
  background: linear-gradient(120deg, #FFF6EE 0%, #F5EFFF 38%, #FFFFFF 100%);
  border-bottom: 1px solid var(--line);
}

.cat-hero__copy {
  position: relative;
  z-index: 2;
  padding-right: 28px;
}

.cat-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #7C3AED;
  margin-bottom: 16px;
}

.cat-kicker i {
  color: var(--brand-3);
}

.cat-hero h1 {
  margin-bottom: 18px;
  font-size: 46px;
}

.cat-subtitle {
  font-size: 17px;
  line-height: 1.9;
  color: #4A5064;
  max-width: 620px;
  margin-bottom: 24px;
}

.tag-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-pill);
  background: #fff;
  color: #556075 !important;
  border: 1px solid rgba(21, 12, 40, 0.09);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(21, 12, 40, 0.04);
}

.pill-tag:hover {
  color: var(--brand-1) !important;
  border-color: rgba(124, 58, 237, 0.45);
}

.cat-hero__visual {
  position: relative;
  min-height: 300px;
}

.visual-panel {
  position: relative;
  height: 330px;
  border-radius: 32px;
  background-color: #C4BDE8;
  background-size: cover;
  background-position: center;
  box-shadow: 0 30px 60px rgba(21, 12, 40, 0.2);
}

.visual-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 32px;
  background: linear-gradient(160deg, rgba(124, 58, 237, 0.18), rgba(192, 38, 211, 0.24) 50%, rgba(245, 158, 11, 0.1));
  pointer-events: none;
}

.visual-sticker {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 17px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 28px rgba(21, 12, 40, 0.14);
  backdrop-filter: blur(8px);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.visual-sticker i {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(140deg, var(--brand-1), var(--brand-2));
}

.sticker-1 {
  top: 28px;
  left: 8px;
}

.sticker-2 {
  right: -8px;
  bottom: 36px;
}

.sticker-2 i {
  background: linear-gradient(140deg, var(--brand-3), var(--brand-4));
}

.category-detail {
  padding: 64px 0 20px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 36px;
  align-items: start;
}

.section-panel {
  background: var(--white);
  border: 1px solid rgba(21, 12, 40, 0.055);
  border-radius: 26px;
  box-shadow: var(--shadow-card);
  padding: 38px;
  margin-bottom: 26px;
}

.section-panel h2 {
  font-size: 26px;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 34px;
  align-items: center;
  margin-top: 20px;
}

.intro-grid p {
  color: #3F4658;
  margin-bottom: 16px;
}

.list-tick {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.list-tick li {
  position: relative;
  padding-left: 28px;
  color: #454B5A;
}

.list-tick li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 1px;
  width: 19px;
  height: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #F7F1FF;
  color: var(--brand-1);
  font-size: 10px;
}

.intro-media figure {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(21, 12, 40, 0.12);
}

.intro-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.intro-media figcaption {
  padding: 15px 17px;
  background: #fff;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.channel-rows {
  margin-top: 16px;
}

.topic-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 20px 2px;
  border-bottom: 1px solid rgba(21, 12, 40, 0.06);
}

.topic-row:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.topic-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 17px;
  background: linear-gradient(140deg, #F7F1FF, #FFF8EE);
  color: var(--brand-1);
  font-size: 20px;
}

.topic-row:nth-child(2) .topic-icon {
  background: #FFF8EE;
  color: var(--brand-3);
}

.topic-row:nth-child(3) .topic-icon {
  background: #F4F6FF;
  color: #4F8DFE;
}

.topic-row:nth-child(4) .topic-icon {
  background: #FFF1F4;
  color: var(--brand-4);
}

.topic-main h3 {
  margin-bottom: 4px;
  font-size: 18px;
}

.topic-main p {
  margin-bottom: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.go-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-1) !important;
  white-space: nowrap;
  padding: 8px 6px;
}

.go-link i {
  transition: transform 0.2s ease;
}

.go-link:hover i {
  transform: translateX(4px);
}

.panel-deep {
  background: linear-gradient(140deg, #261047, #160928 80%);
  color: #fff;
  border-radius: 28px;
  box-shadow: var(--shadow-deep);
  padding: 42px;
  margin-bottom: 26px;
  border: 0;
}

.panel-deep h2 {
  color: #fff;
}

.panel-deep .section-overline {
  color: #FFD48A;
}

.panel-deep .section-overline::before {
  background: linear-gradient(90deg, #F59E0B, #F43F5E);
}

.panel-deep p {
  color: rgba(255, 255, 255, 0.7);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 28px;
}

.process-step {
  position: relative;
  padding: 28px 20px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--brand-3), var(--brand-4));
  font-weight: 800;
  color: #fff;
  font-size: 15px;
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.22);
}

.process-step h3 {
  color: #fff;
  font-size: 17px;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

.reference-flex {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 28px;
  margin-top: 22px;
}

.reference-copy {
  background: #F9FAFD;
  border-radius: 20px;
  padding: 22px;
}

.reference-copy h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.reference-copy p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 0;
}

.reference-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reference-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(21, 12, 40, 0.06);
  font-size: 15px;
}

.reference-list li:last-child {
  border-bottom: 0;
}

.reference-list strong {
  font-weight: 700;
}

.reference-list span {
  color: var(--muted);
  font-size: 14px;
}

.faq-block {
  background: #fff;
  border-radius: 28px;
  border: 1px solid rgba(21, 12, 40, 0.055);
  box-shadow: var(--shadow-card);
  padding: 38px;
  margin-bottom: 26px;
}

.faq-item {
  border-bottom: 1px solid rgba(21, 12, 40, 0.06);
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 19px 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  transition: color 0.2s ease;
}

.faq-q:hover {
  color: var(--brand-1);
}

.faq-q i {
  color: var(--brand-1);
  font-size: 14px;
  transition: transform 0.28s ease;
}

.faq-q::before {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f059";
  margin-right: 14px;
  color: #C4BFD8;
}

.faq-q span.faq-title-text {
  flex: 1;
}

.faq-a {
  display: none;
  padding: 0 4px 20px 34px;
  color: #4A5064;
}

.faq-item.is-open .faq-q {
  color: var(--brand-1);
}

.faq-item.is-open .faq-q i {
  transform: rotate(180deg);
}

.faq-item.is-open .faq-a {
  display: block;
}

.detail-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 96px;
}

.side-card {
  background: #fff;
  border: 1px solid rgba(21, 12, 40, 0.055);
  border-radius: 20px;
  box-shadow: 0 8px 26px rgba(21, 12, 40, 0.05);
  overflow: hidden;
}

.side-menu {
  padding: 24px;
}

.side-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.02em;
}

.side-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 2px;
  font-size: 14px;
  color: #4A5064;
  border-left: 3px solid transparent;
  padding-left: 8px;
}

.side-menu a:hover {
  color: var(--brand-1);
  border-left-color: var(--brand-1);
}

.side-card img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.side-panel-content {
  padding: 22px;
}

.side-panel-content h3 {
  font-size: 18px;
}

.side-panel-content p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
}

.status-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 99px;
  background: #F7F1FF;
  color: var(--brand-1);
  font-size: 12px;
  font-weight: 600;
}

.cta-band {
  position: relative;
  padding: 84px 0;
  background: linear-gradient(135deg, #150C28 0%, #241242 52%, #3B1767 100%);
  color: #fff;
}

.cta-band .section-overline {
  color: #FFD48A;
}

.cta-band .section-overline::before {
  background: linear-gradient(90deg, var(--brand-3), var(--brand-4));
}

.cta-band h2 {
  color: #fff;
  font-size: 32px;
  margin-bottom: 14px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  max-width: 620px;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 30px;
}

.footer {
  background: #150C28;
  color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 0.8fr 0.8fr;
  gap: 44px;
  padding: 62px 0 30px;
}

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

.footer-brand .brand-name {
  color: #fff;
}

.footer-brand .brand-sub {
  color: rgba(255, 255, 255, 0.5);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h5 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

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

.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.56);
}

.footer-col a:hover {
  color: #FFD48A;
  transform: translateX(3px);
}

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 28px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
  max-width: 1200px;
  margin: 0 auto;
}

@media (max-width: 1100px) {
  .top-nav {
    gap: 20px;
  }

  .header-actions .search-form {
    width: 170px;
  }

  .detail-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 26px;
  }

  .footer-grid {
    grid-template-columns: 1.1fr 0.9fr 0.9fr 0.9fr;
    row-gap: 36px;
  }
}

@media (max-width: 1024px) {
  h1 {
    font-size: 34px;
  }

  .cat-hero h1 {
    font-size: 38px;
  }

  .header-actions {
    display: none;
  }

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

  .top-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 80;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-radius: 0 0 22px 22px;
    box-shadow: 0 22px 48px rgba(21, 12, 40, 0.14);
    padding: 16px 22px 22px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .top-nav.is-open {
    display: flex;
  }

  .top-nav a {
    padding: 15px 8px;
    border-bottom: 1px solid var(--line);
    color: #273049;
  }

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

  .top-nav a.active {
    color: var(--brand-1);
    background: #F7F1FF;
    border-radius: 12px;
    border-bottom-color: transparent;
  }

  .mobile-nav-cta {
    display: inline-flex;
    margin-top: 18px;
    justify-content: center;
  }

  .site-header {
    height: 64px;
  }

  .header-inner {
    height: 64px;
  }

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

  .detail-aside {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto;
  }

  .side-card:last-child {
    grid-column: 1 / -1;
  }

  .cat-hero__visual {
    margin-top: 40px;
    max-width: 460px;
  }

  .visual-panel {
    height: 270px;
  }
}

@media (max-width: 800px) {
  .section-panel,
  .faq-block,
  .panel-deep {
    padding: 28px 22px;
    border-radius: 22px;
  }

  .intro-grid,
  .reference-flex {
    grid-template-columns: 1fr;
  }

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

  .process-step {
    padding: 22px 18px;
  }

  .topic-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
    padding: 18px 0;
  }

  .topic-icon {
    width: 48px;
    height: 48px;
  }

  .go-link {
    grid-column: 2;
    justify-self: start;
  }

  .cat-hero {
    padding: 56px 0 44px;
  }

  .cat-hero__visual {
    min-height: 0;
  }

  .visual-panel {
    height: 220px;
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  .container,
  .grid-container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .cat-hero h1 {
    font-size: 32px;
  }

  .cat-subtitle {
    font-size: 15px;
  }

  .detail-aside {
    grid-template-columns: 1fr;
  }

  .sticker-1,
  .sticker-2 {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    margin-bottom: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 44px;
  }

  .footer-copyright {
    text-align: left;
    padding: 20px 18px;
  }

  .cta-band {
    padding: 58px 0;
  }

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

/* roulang page: category4 */
:root{
  --brand-1:#7C3AED;
  --brand-2:#C026D3;
  --brand-3:#F59E0B;
  --brand-4:#F43F5E;
  --dark-1:#150C28;
  --dark-2:#1C1030;
  --bg-light:#F5F6FA;
  --surface:#ffffff;
  --text-main:#1F2430;
  --text-sub:#647089;
  --line:rgba(21,12,40,.07);
  --shadow-soft:0 12px 34px rgba(21,12,40,.08);
  --radius-card:24px;
  --radius-box:16px;
  --radius-pill:999px;
  --grad-main:linear-gradient(135deg,var(--brand-1),var(--brand-2));
  --grad-warm:linear-gradient(135deg,var(--brand-2),var(--brand-3));
  --font-cn:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,Source Han Sans SC,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--bg-light);color:var(--text-main);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease}
img{display:block;max-width:100%}
ul,ol,li{list-style:none}
button,input,textarea,select{font-family:inherit}
input:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid rgba(124,58,237,.35);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1240px;margin-left:auto;margin-right:auto;padding-left:28px;padding-right:28px}
.section-pad{padding:96px 0}

/* ===== Button ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;padding:0 24px;height:44px;border-radius:var(--radius-pill);border:0;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,filter .2s ease;white-space:nowrap}
.btn i{font-size:14px}
.btn-primary{background:linear-gradient(115deg,var(--brand-1),var(--brand-2) 55%,#A855F7);color:#fff;box-shadow:0 10px 24px rgba(124,58,237,.26)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 30px rgba(124,58,237,.34);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--dark-2);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--dark-2);box-shadow:0 12px 30px rgba(255,255,255,.15)}
.btn-light:hover{background:#F5F3FF;color:var(--brand-1);transform:translateY(-2px)}
.btn-warm{background:linear-gradient(115deg,var(--brand-3),#F59E0B);color:#1F2430;box-shadow:0 10px 26px rgba(245,158,11,.28)}
.btn-warm:hover{filter:brightness(1.05);transform:translateY(-2px);color:#1F2430}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 32px;font-size:16px}

/* ===== Tag pill ===== */
.tag-pill{display:inline-flex;align-items:center;height:30px;padding:0 16px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;background:#fff;border:1px solid rgba(255,255,255,.28);color:#fff;letter-spacing:.4px}
.tag-pill.light{background:#fff;border-color:rgba(21,12,40,.1);color:var(--text-main)}
.tag-pill.flat{background:#F5F3FF;border-color:rgba(124,58,237,.12);color:var(--brand-1)}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:999;height:74px;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(0,0,0,.04)}
.header-inner{display:flex;align-items:center;height:74px;gap:22px;position:relative}
.brand-logo{display:flex;align-items:center;gap:10px;margin-right:6px}
.brand-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--grad-main);color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(124,58,237,.24)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.4px;color:var(--dark-2)}
.brand-sub{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--text-sub)}
.top-nav{display:flex;align-items:center;gap:36px;margin-left:24px}
.top-nav a{position:relative;display:inline-flex;align-items:center;height:74px;font-size:15px;font-weight:500;color:var(--text-main);padding:0 2px}
.top-nav a:hover{color:var(--brand-1)}
.top-nav a.active{color:var(--brand-1);font-weight:700}
.top-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:4px;border-radius:var(--radius-pill);background:var(--grad-main)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-wrap{display:flex;align-items:center;background:#F2F3F7;border:1px solid transparent;border-radius:var(--radius-pill);height:40px;padding:0 6px 0 16px;width:220px;transition:border .2s}
.search-wrap:focus-within{border-color:var(--brand-1);background:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.08)}
.search-wrap i{color:#9AA1B2;font-size:13px}
.search-wrap input{border:0;background:transparent;outline:0;font-size:14px;color:var(--text-main);height:36px;width:calc(100% - 30px);padding-left:8px}
.search-wrap input::placeholder{color:#A3A9BB}
.header-cta{height:40px;padding:0 20px;font-size:14px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--dark-2);cursor:pointer;font-size:18px;margin-left:auto}
.mobile-panel{display:none;position:fixed;top:74px;right:0;width:min(85vw,340px);height:calc(100vh - 74px);background:#fff;z-index:998;box-shadow:-12px 0 34px rgba(21,12,40,.16);padding:28px 22px;overflow-y:auto}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:12px 10px;border-radius:12px;font-size:16px;font-weight:500;color:var(--text-main);margin-bottom:4px}
.mobile-panel a:hover{background:#F5F3FF;color:var(--brand-1)}
.mobile-panel a.active{background:var(--grad-main);color:#fff;font-weight:700;box-shadow:0 8px 20px rgba(124,58,237,.25)}
.mobile-panel .mobile-cta{margin-top:18px;display:flex}
.mobile-panel .mobile-cta .btn{width:100%}

/* ===== Category hero ===== */
.cat-hero{position:relative;background:#1A1232;overflow:hidden;padding:74px 0 78px}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;filter:saturate(.8)}
.cat-hero-mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(21,12,40,.94) 0%,rgba(124,58,237,.72) 45%,rgba(245,158,11,.22) 100%)}
.cat-hero-wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.72);font-size:14px;margin-bottom:38px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb-sep{color:rgba(255,255,255,.4)}
.crumb em{color:#fff;font-style:normal;font-weight:600}
.cat-hero-main h1{color:#fff;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.5px;margin-bottom:16px}
.cat-hero-main p{max-width:740px;color:rgba(255,255,255,.86);font-size:17px;line-height:1.9;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px}

/* ===== Category detail layout ===== */
.category-detail{background:#F5F6FA}
.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:36px;align-items:start}
.sidebar-panel{display:flex;flex-direction:column;gap:22px;position:sticky;top:98px}
.side-card{background:#fff;border-radius:var(--radius-card);border:1px solid var(--line);padding:24px;box-shadow:var(--shadow-soft)}
.side-nav-card h3{font-size:17px;font-weight:800;margin-bottom:14px;color:var(--dark-2)}
.side-nav-card li{margin-bottom:6px}
.side-nav-card li a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:12px;font-size:14px;font-weight:500;color:var(--text-main);transition:all .2s}
.side-nav-card li a::after{content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:#B6BCCB}
.side-nav-card li a:hover{background:#F5F3FF;color:var(--brand-1)}
.side-nav-card li.active a{background:linear-gradient(115deg,rgba(124,58,237,.1),rgba(192,38,211,.06));color:var(--brand-1);font-weight:700}
.side-nav-card li.active a::after{transform:rotate(180deg);color:var(--brand-1)}
.side-separator{height:1px;background:var(--line);margin:12px 0}
.side-cta .btn{width:100%}
.side-guide-card{background:linear-gradient(145deg,#F7F4FF,#FFF8EE)}
.side-guide-card .side-number{font-size:32px;line-height:1;font-weight:800;background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.side-guide-card h4{font-size:16px;margin:10px 0 6px;color:var(--dark-2)}
.side-guide-card p{color:var(--text-sub);font-size:13.5px;line-height:1.8}
.download-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-soft);border:1px solid var(--line);overflow:hidden}
.download-card img{width:100%;height:150px;object-fit:cover}
.download-card-content{padding:20px}
.download-card-content h4{font-size:16px;margin-bottom:6px;color:var(--dark-2)}
.download-card-content p{color:var(--text-sub);font-size:13px;border-bottom:1px dashed var(--line);padding-bottom:14px;margin-bottom:14px;line-height:1.8}
.download-card .btn{width:100%}
.to-top-link{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 20px;border-radius:16px;background:#F5F3FF;color:var(--brand-1);font-size:14px;font-weight:700;border:1px solid rgba(124,58,237,.12)}
.to-top-link:hover{background:#fff;border-color:var(--brand-1);transform:translateY(-2px)}
.content-zone{display:flex;flex-direction:column;gap:28px}

/* ===== About block ===== */
.block-card{background:#fff;border-radius:var(--radius-card);padding:38px;box-shadow:var(--shadow-soft);border:1px solid var(--line)}
.block-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.block-title i{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--grad-main);border-radius:12px;color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(124,58,237,.2)}
.block-title h2{font-size:26px;line-height:1.3;font-weight:800;color:var(--dark-2)}
.block-title small{font-size:12px;font-weight:600;color:#fff;background:linear-gradient(115deg,var(--brand-3),var(--brand-4));border-radius:var(--radius-pill);padding:3px 10px;letter-spacing:.6px}
.about-paragraph{color:#3E4456;font-size:15.5px;line-height:2;margin-bottom:18px}
.about-paragraph strong{color:var(--dark-2);font-weight:700}
.about-paragraph:last-child{margin-bottom:0}
.about-media{margin-top:22px;border-radius:20px;overflow:hidden;position:relative}
.about-media img{width:100%;max-height:360px;object-fit:cover}
.about-media-caption{position:absolute;left:14px;bottom:14px;color:#fff;font-size:13px;background:rgba(21,12,40,.58);backdrop-filter:blur(6px);padding:6px 14px;border-radius:12px}

/* ===== info grid ===== */
.about-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.info-mini{background:#F8F9FC;border:1px solid var(--line);border-radius:16px;padding:16px 18px}
.info-mini i{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:#fff;color:var(--brand-1);font-size:14px;margin-bottom:10px;box-shadow:0 4px 10px rgba(21,12,40,.06)}
.info-mini b{display:block;font-size:15px;color:var(--dark-2);font-weight:700}
.info-mini span{font-size:12.5px;color:var(--text-sub);line-height:1.6}

/* ===== Service module cards ===== */
.module-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-soft);border:1px solid var(--line);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}
.module-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(21,12,40,.12)}
.module-card-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:#EBEDF2}
.module-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.module-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 52%,rgba(21,12,40,.36))}
.module-card:hover .module-card-media img{transform:scale(1.04)}
.module-card-tag{position:absolute;top:12px;left:12px;z-index:2;background:rgba(21,12,40,.62);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);backdrop-filter:blur(6px)}
.module-card-tag.amber{background:linear-gradient(115deg,rgba(245,158,11,.92),rgba(244,63,94,.85));color:#fff}
.module-card-body{padding:24px 24px 22px}
.module-card-body h3{font-size:19px;font-weight:800;color:var(--dark-2);margin-bottom:10px}
.module-card-body p{font-size:14.5px;line-height:1.85;color:#4B536B}
.module-card-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:700;color:var(--brand-1)}
.module-card-link i{transition:transform .2s}
.module-card-link:hover i{transform:translateX(4px)}
.module-card-link:hover{color:var(--brand-2)}

/* ===== Value band ===== */
.band-mixed{position:relative;overflow:hidden;border-radius:var(--radius-card);padding:0;background:var(--dark-2);color:#fff}
.band-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.band-img-mask{position:absolute;inset:0;background:linear-gradient(105deg,rgba(21,12,40,.95) 0%,rgba(124,58,237,.7) 55%,rgba(245,158,11,.28) 100%)}
.band-content{position:relative;z-index:2;padding:46px}
.band-content h2{font-size:26px;font-weight:800;color:#fff;margin-bottom:18px;line-height:1.3}
.band-content h2 i{color:var(--brand-3);margin-right:6px}
.band-content .lead-inline{color:rgba(255,255,255,.8);font-size:15px;line-height:2;max-width:760px;margin-bottom:26px}
.highlight-list{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.highlight-list li{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:12px 16px;font-size:14px;font-weight:600;color:#fff;backdrop-filter:blur(4px)}
.highlight-list li i{color:var(--brand-3)}
.band-buttons{display:flex;gap:14px;flex-wrap:wrap}
.band-note{font-size:13px;color:rgba(255,255,255,.54);margin-top:20px}

/* ===== Data strip ===== */
.data-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.data-strip-item{background:#F8F9FC;border:1px solid var(--line);border-radius:18px;padding:22px 20px;display:flex;align-items:center;gap:14px}
.data-icon{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#FEF3C7,#FDE68A);color:#B45309;font-size:18px;flex-shrink:0}
.data-icon.violet{background:#EDE9FE;color:var(--brand-1)}
.data-icon.rose{background:#FFE4E6;color:#E11D48}
.data-strip-item b{display:block;font-size:17px;font-weight:800;color:var(--dark-2)}
.data-strip-item span{font-size:13px;color:var(--text-sub);line-height:1.6}

/* ===== Team/two side ===== */
.two-split{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}
.split-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow-soft)}
.split-panel h3{font-size:19px;font-weight:800;color:var(--dark-2);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.split-panel h3 i{color:var(--brand-1)}
.split-panel.primary-panel{background:linear-gradient(145deg,#F7F4FF,#FFFFFF)}
.plain-ul{display:flex;flex-direction:column;gap:15px}
.plain-ul li{position:relative;padding-left:28px;font-size:14.5px;color:#475069;line-height:1.9}
.plain-ul li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:4px;color:var(--brand-1);font-size:13px}
.plain-note{background:#F5F3FF;border-left:3px solid var(--brand-1);border-radius:10px;padding:12px 16px;color:#4C3B7D;font-size:14px;margin-top:20px;line-height:1.9}

/* ===== FAQ ===== */
.faq-wrap{margin-top:10px}
.faq-list-item{background:#fff;border:1px solid var(--line);border-radius:18px;margin-bottom:12px;overflow:hidden;box-shadow:0 4px 14px rgba(21,12,40,.03)}
.faq-list-item[open]{border-color:rgba(124,58,237,.4);box-shadow:var(--shadow-soft)}
.faq-list-item[open] summary::after{transform:rotate(180deg)}
.faq-list-item summary{display:flex;align-items:center;gap:16px;padding:18px 22px;cursor:pointer;list-style:none;font-size:16px;font-weight:700;color:var(--dark-2);transition:background .2s}
.faq-list-item summary::-webkit-details-marker{display:none}
.faq-list-item summary:hover{background:#FAF9FF}
.faq-list-item summary .faq-num{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:8px;font-size:12px;font-weight:800;color:var(--brand-1);background:#F5F3FF;flex-shrink:0}
.faq-list-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;margin-left:auto;font-size:12px;color:#A3A9BB;transition:transform .25s}
.faq-list-item[open] summary{border-bottom:1px solid var(--line)}
.faq-answer{padding:16px 52px 24px 66px;color:#4B536B;font-size:15px;line-height:2}
.faq-answer strong{color:var(--dark-2)}

/* ===== CTA band ===== */
.cta-band{background:linear-gradient(135deg,#1C1030 0%,#3D1760 44%,var(--brand-1) 100%);position:relative;overflow:hidden;padding:72px 0}
.cta-band::before{content:"";position:absolute;right:-120px;top:-180px;width:360px;height:360px;background:radial-gradient(circle,rgba(245,158,11,.4),transparent 67%);pointer-events:none}
.cta-band::after{content:"";position:absolute;left:-100px;bottom:-200px;width:440px;height:440px;background:radial-gradient(circle,rgba(192,38,211,.45),transparent 66%);pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center}
.cta-inner h2{color:#fff;font-size:32px;font-weight:800;line-height:1.35;letter-spacing:.4px;margin-bottom:16px}
.cta-inner p{color:rgba(255,255,255,.77);font-size:16px;line-height:1.9;max-width:720px;margin:0 auto 30px}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{background:var(--dark-1);color:#BFC6D4;padding-top:58px}
.footer .container{max-width:1240px}
.footer-grid{display:grid;grid-template-columns:2.1fr 1fr 1fr 1fr 1fr;gap:34px;padding-bottom:50px}
.footer-brand .brand-logo{margin-bottom:14px}
.footer-brand .brand-logo .brand-name{color:#fff}
.footer-brand .brand-logo .brand-sub{color:rgba(255,255,255,.48)}
.footer-brand p{font-size:14px;line-height:2;color:rgba(255,255,255,.62);max-width:330px}
.footer-col h5{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.6);transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--brand-3);padding-left:4px}
.footer-copyright{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:13.5px;color:rgba(255,255,255,.48);text-align:center;letter-spacing:.4px}
.footer-copyright a{color:rgba(255,255,255,.48)}
.footer-copyright a:hover{color:#fff}

/* ===== Responsive ===== */
@media (max-width:1100px){
  .top-nav{gap:22px;margin-left:8px}
  .header-inner{gap:12px}
  .search-wrap{width:170px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px;row-gap:42px}
}
@media (max-width:900px){
  .top-nav,.search-wrap,.header-cta{display:none}
  .nav-toggle{display:flex}
  .detail-grid{grid-template-columns:1fr}
  .sidebar-panel{position:static;order:2;grid-template-columns:1fr 1fr;display:grid}
  .sidebar-panel .side-card:last-child{grid-column:auto}
  .content-zone{order:1}
  .container{padding-left:20px;padding-right:20px}
  .block-card{padding:28px}
  .about-info-grid{grid-template-columns:repeat(2,1fr)}
  .data-strip{grid-template-columns:1fr}
  .two-split{grid-template-columns:1fr}
  .cat-hero-main h1{font-size:36px}
  .cta-inner h2{font-size:26px}
}
@media (max-width:640px){
  body{font-size:15px}
  .section-pad{padding:64px 0}
  .header-inner{height:64px}
  .site-header{height:64px}
  .brand-name{font-size:17px}
  .brand-icon{width:34px;height:34px;font-size:15px}
  .cat-hero{padding:54px 0 52px}
  .crumb{margin-bottom:26px}
  .cat-hero-main h1{font-size:30px}
  .cat-hero-main p{font-size:15px}
  .detail-grid{gap:24px}
  .sidebar-panel{grid-template-columns:1fr}
  .block-card{border-radius:18px}
  .block-title h2{font-size:22px}
  .block-title i{width:32px;height:32px;font-size:14px}
  .module-card-body{padding:20px}
  .about-info-grid{grid-template-columns:1fr}
  .band-content{padding:30px 22px}
  .band-content h2{font-size:22px}
  .cta-inner h2{font-size:23px}
  .cta-buttons .btn{width:100%}
  .faq-answer{padding:16px 20px 20px 44px}
  .faq-list-item summary{gap:10px;padding:15px 16px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;row-gap:30px;padding-bottom:36px}
  .btn-lg{height:48px;padding:0 24px;font-size:15px}
}