/* roulang page: index */
:root {
  --bg: #F6F3EC; 
  --surface: #FFFFFF;
  --primary: #21463C;
  --primary-hover: #17362E;
  --accent: #B4835A;
  --accent-hover: #946747;
  --text: #202B27;
  --text-weak: #65756F;
  --line: #E4DDD0;
  --dark: #102A24;
  --danger: #B4492C;
  --radius-sm: 2px;
  --radius-md: 5px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(32,43,39,.05);
  --shadow-md: 0 6px 24px rgba(32,43,39,.08);
  --space: 1.5rem;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px; line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
ul, ol { list-style: none; }
p { text-align: left; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 40px; }
.section { padding: 88px 0; }
.section-tight { padding: 64px 0; }
h1,h2,h3,h4 { color: var(--text); line-height: 1.3; }
h1 { font-size: clamp(36px, 5vw, 60px); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: clamp(16px, 1.6vw, 20px); font-weight: 600; }
.sec-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 40px; gap: 1rem; flex-wrap: wrap; }
.sec-overline {
  font-size: 12px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
  display: block; margin-bottom: 8px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius-md); border: 1px solid transparent;
  cursor: pointer; transition: all .3s ease-out; line-height: 1.2;
  gap: 8px; white-space: nowrap;
}
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid rgba(180,131,90,.4); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(33,70,60,.15); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-dark { background: var(--dark); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(180,131,90,.24); }
.btn-outline { background: transparent; border-color: var(--line); color: var(--primary); }
.btn-outline:hover { border-color: var(--primary); background: rgba(33,70,60,.03); }
.btn-white { background: #fff; color: var(--dark); }
.btn-white:hover { background: rgba(255,255,255,.92); }
.btn-disabled, .btn[disabled] { opacity: .45; cursor: not-allowed; pointer-events: none; }
.btn .arr { transition: transform .3s ease; display: inline-block; }
.btn:hover .arr { transform: translateX(4px); }
.tag {
  display: inline-flex; align-items: center;
  font-size: 12px; letter-spacing: .06em;
  padding: 4px 12px; border-radius: 999px;
  background: rgba(33,70,60,.06); color: var(--primary);
  font-weight: 600; line-height: 1.4;
}
.tag::before { content: ""; display:none; }
.badge { display: inline-block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--text-weak); background: #faf9f6; }
.pill { display: inline-flex; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; color: var(--text-weak); background: transparent; transition: .2s; }
.pill:hover { border-color: var(--accent); color: var(--primary); }

/* ---------- Header ---------- */
.header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 1000;
}
.header-top {
  display: flex; justify-content: space-between; align-items: center;
  height: 68px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo {
  width: 38px; height: 38px; border-radius: var(--radius-md);
  background: var(--primary); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px; letter-spacing: -.2px;
}
.brand-name { font-size: 20px; font-weight: 700; color: var(--dark); letter-spacing: 0; }
.brand-sub { font-size: 11px; color: var(--text-weak); font-weight: 400; letter-spacing: .08em; text-transform: uppercase; line-height: 1.2; margin-top: 1px; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-btn {
  width: 40px; height: 40px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--line);
  transition: .2s; cursor: pointer; color: var(--text);
}
.search-btn:hover { border-color: var(--primary); color: var(--primary); }
.nav-tabs {
  display: flex; align-items: center; gap: 4px;
  height: 52px; border-top: 1px solid #f2eee6;
  overflow-x: auto; scrollbar-width: none;
  white-space: nowrap;
}
.nav-tabs::-webkit-scrollbar { display: none; }
.tab {
  position: relative; padding: 12px 18px;
  font-size: 15px; font-weight: 500; color: var(--text-weak);
  transition: color .22s ease; cursor: pointer;
}
.tab:hover { color: var(--primary); }
.tab.active {
  color: var(--primary); font-weight: 700;
}
.tab.active::after {
  content: ""; position: absolute; bottom: -1px; left: 14px; right: 14px;
  height: 3px; border-radius: 3px 3px 0 0;
  background: var(--accent);
}
.nav-tabs .tab:focus-visible { outline-offset: -2px; }
.search-panel {
  display:none; background:#fff; border-bottom: 1px solid var(--line);
  padding: 16px 0;
}
.search-panel.open { display:block; }
.search-form { display: flex; gap: 8px; }
.search-input {
  flex: 1; height: 44px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 0 16px; background: var(--bg); font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
}
.search-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(33,70,60,.12); background: #fff; }
.search-submit { display: flex; align-items: center; gap: 6px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--dark);
  background-image: linear-gradient(90deg, rgba(16,42,36,.94) 0%, rgba(16,42,36,.76) 55%, rgba(16,42,36,.72) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover; background-position: center;
  color: #fff; padding: 92px 0 94px;
  border-bottom: 1px solid #2b4a41;
}
.hero-inner { display: flex; justify-content: space-between; gap: 50px; align-items: flex-end; }
.hero-content { max-width: 768px; }
.hero-overline {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .16em; color: rgba(255,255,255,.55);
  text-transform: uppercase; font-weight: 500;
}
.hero-overline span.dash { width: 30px; height: 1px; background: var(--accent); display: inline-block; }
.hero h1 { color: #fff; margin: 23px 0 18px; }
.hero h1 .hl { color: var(--accent); position: relative; }
.hero-desc { font-size: 17px; color: rgba(255,255,255,.76); max-width: 620px; line-height: 1.8; }
.hero-actions { margin-top: 36px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.link-underline {
  color: rgba(255,255,255,.9); font-size: 15px; font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,.45); transition: .3s;
  padding-bottom: 3px; display: inline-flex; gap: 6px; align-items: center;
}
.link-underline:hover { color: #fff; border-color: var(--accent); }
.hero-meta { margin-top: 48px; display: flex; gap: 26px; flex-wrap: wrap; }
.hm-item {
  display:flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .08em;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
}
.hm-item i { color: var(--accent); }
.hero-stats { margin-top: 56px; display: flex; flex-wrap: wrap; gap: 28px; border-top: 1px solid rgba(255,255,255,.15); padding-top: 26px; max-width: 680px; }
.stat-num { font-size: 28px; font-weight: 700; color: #fff; }
.stat-num span.accent { color: var(--accent); }
.stat-label { font-size: 13px; color: rgba(255,255,255,.55); letter-spacing: .03em; line-height: 1.7; }

/* ---------- Table of contents ---------- */
.toc { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-bottom: 1px solid var(--line); }
.toc-item {
  padding: 28px 20px 28px 0; border-bottom: 1px solid var(--line);
  transition: background .3s; border-right: 1px solid transparent;
  cursor: pointer; display: block;
}
.toc-item:not(:last-child) { border-right: 0; border-bottom: 1px solid var(--line); }
.toc-num-top { display:flex; align-items:center; justify-content:space-between; margin-bottom: 16px; }
.toc-num { font-size: 24px; font-weight: 600; color: var(--accent); line-height:1; }
.toc-item:hover { background: var(--surface); }
.toc-item h3 { margin-bottom: 8px; font-size: 17px; }
.toc-item p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
.toc-arrow { color: var(--accent); font-size: 17px; transition: .3s; }
.toc-item:hover .toc-arrow { transform: translateX(5px); }

/* ---------- Section module header ---------- */
.module-eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
  display: inline-flex; align-items: center; gap: 8px;
}
.module-eyebrow::before { content:''; width: 20px; height: 2px; background: var(--accent); display:inline-block; border-radius: 2px; }
.sec-bottom-link a { font-size: 14px; color: var(--text-weak); display: inline-flex; gap: 8px; font-weight: 500; transition: .2s; }
.sec-bottom-link a:hover { color: var(--primary); }

/* ---------- Featured collection ---------- */
.featured-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: stretch; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-md); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card-media { aspect-ratio: 16/9; overflow: hidden; background: var(--primary); position: relative; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.card:hover .card-media img { transform: scale(1.03); }
.card-media .tag {
  position: absolute; top: 14px; left: 14px; background: rgba(16,42,36,.82);
  color: #e8e2d5; backdrop-filter: blur(4px);
}
.card-body { display: flex; flex-direction: column; flex: 1; padding: 26px 24px 24px; }
.card-body h3 { margin: 12px 0 8px; }
.card-body p { font-size: 14px; color: var(--text-weak); overflow: hidden; }
.card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-weak);
  margin-top: auto; padding-top: 18px;
}
.card-link { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; gap: 6px; align-items:center; transition: .2s; }
.card-link:hover .arr { transform: translateX(4px); }
.card-large .card-media { aspect-ratio: 16/10; }
.col-stack { display:grid; gap: 16px; }
.col-stack .card { flex-direction: row; align-items: stretch; border-radius: var(--radius-sm); }
.col-stack .card .card-media { width: 46%; aspect-ratio: 5/5; flex:none; }
.col-stack .card .card-body { padding: 18px; justify-content: flex-start; }
.col-stack .card .card-body h3 { font-size: 17px; }
.col-stack .card .card-body p { font-size:13px; margin:8px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient:vertical; overflow:hidden; gap: 6px; }
.col-stack .card .card-meta { padding-top: 12px; }

/* List row */
.list-panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-md); overflow: hidden;
}
.list-item { display: flex; align-items: center; gap: 26px; padding: 18px 26px; border-bottom: 1px solid #f0eae1; transition: background .2s; }
.list-item:last-child { border-bottom: none; }
.list-item:hover { background: #faf7f0; }
.list-date { flex: none; width: 86px; }
.list-date .d { font-size: 20px; font-weight: 700; color: var(--primary); font-variant-numeric: tabular-nums; line-height: 1.1;}
.list-date .m { font-size: 12px; color: var(--text-weak); text-transform: uppercase; letter-spacing: .05em; }
.list-main { flex: 1; min-width: 0; }
.list-main h4 { font-size: 17px; font-weight: 600; margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); transition: .2s; }
.list-item:hover .list-main h4 { color: var(--primary); }
.list-main .list-excerpt { font-size: 14px; color: var(--text-weak); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 90%; }
.list-arrow { flex: none; color: var(--accent); font-size: 18px; transition: .3s; }
.list-item:hover .list-arrow { transform: translateX(4px); }

/* Empty state */
.no-data {
  padding: 30px 24px; text-align: center; color: var(--text-weak);
  border: 1px dashed var(--line); border-radius: var(--radius-md); background: #fbfaf6;
  font-size: 14px;
}
.no-data i { font-size: 28px; display:block; margin-bottom: 8px; opacity:.6; }

/* ---------- Explore / info modules ---------- */
.info-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; }
.info-item { display:flex; flex-direction: column; gap: 10px; background: transparent; padding: 22px 10px; border-bottom: 1px solid var(--line); }
.info-num { color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: .04em; }
.info-title { font-weight: 700; font-size: 16px; color: var(--text); transition: .2s; }
.info-item:hover .info-title { color: var(--primary); }
.info-meta { font-size: 13px; color: var(--text-weak); }
.data-block { background: var(--surface);  border: 1px solid var(--line); border-radius: var(--radius-md); padding: 44px 0; }
.data-row { display: flex; text-align:center; justify-content: space-around; flex-wrap: wrap; gap: 30px 0; }
.data-cell { flex: 1; min-width: 180px; padding: 0 12px; }
.data-cell h2 { font-size: 36px; color: var(--primary); margin-bottom: 6px; }
.data-cell h2 span { color: var(--accent); font-size: .7em; vertical-align: top; margin-left: 4px; }
.data-cell p { font-size: 13px; color: var(--text-weak); }

/* ---------- Diagram / story ---------- */
.split-section { background: var(--surface); border-bottom: 1px solid var(--line); }
.split-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: center; }
.split-img { border-radius: var(--radius-sm); overflow: hidden; position: relative; background: var(--dark); }
.split-img img { width: 100%; height: 100%; min-height:280px; object-fit: cover; }
.split-content h2 { margin-bottom: 12px; }
.split-content p { color: var(--text-weak); margin-bottom: 20px; }
.flow-line { display: grid; grid-template-columns: 2.4fr 1fr 2.4fr 1fr 2.4fr; gap: 4px; align-items: center; margin-top: 24px; }
.flow-item { padding: 20px 16px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); text-align: center; }
.flow-item b { display: block; margin-bottom: 8px; font-size: 16px; color: var(--primary); }
.flow-item em { font-style: normal; font-size:14px; color: var(--text-weak); }
.flow-sep { text-align: center; color: var(--accent); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin:0 auto; }
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
.faq-q { display:flex; justify-content: space-between; align-items:center; padding: 12px 0; color: var(--text); font-size: 18px; font-weight: 600; cursor: pointer; transition:.25s; }
.faq-q:hover { color: var(--primary); }
.faq-icon { width: 34px; height: 34px; flex:none; border-radius:999px; display:flex; align-items:center; justify-content:center; font-size:20px; border:1px solid var(--line); transition:.3s; font-family: sans-serif; background:#fff; color: var(--primary); font-weight:400; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color:#fff; border-color: var(--primary); }
.faq-a {
  max-height: 0; opacity: 0; overflow: hidden; transition: max-height .4s ease-out, opacity .3s ease, margin 0.2s;
  color: var(--text-weak); font-size:15px;
}
.faq-item.open .faq-a { max-height: 260px; opacity: 1; margin-bottom: 22px; transition: max-height .5s ease-out, opacity .3s ease, margin .3s; }
.faq-a p { color: var(--text-weak); }

/* ---------- CTA ---------- */
.cta-block { background: var(--dark); border-radius: 3px; padding: 64px 40px; color:#fff; position: relative; overflow: hidden; }
.cta-block::after {
  content:""; position:absolute; inset:0; background-image:
   radial-gradient(circle at 80% 20%, rgba(180,131,90,.25) 0%, transparent 40%),
   linear-gradient(135deg, rgba(255,255,255,.02) 0%, transparent 70%);
}
.cta-content { position: relative; z-index: 2; display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; align-items:center; }
.cta-text h2 { color:#fff; margin-bottom: 10px; }
.cta-text p { color: rgba(255,255,255,.75); max-width: 600px; }
.cta-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* star/quote */
.quote-block { background: rgba(255,255,255,.45); border-left: 4px solid var(--accent); padding: 24px 28px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.quote-block p { font-size: 18px; color: var(--text); font-weight: 500; }
.quote-block b { display:block; margin-top: 12px; color: var(--text-weak); font-weight: 300; font-size:13px; letter-spacing:.02em; }

/* partner wall */
.partner-wall { display: flex; flex-wrap: wrap; align-items: center; gap: 22px 6px; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 26px; }
.pw-item { font-size: 15px; color: #98A69F; font-weight: 600; letter-spacing: .06em; opacity:.8; transition: .3s; padding: 0 6px; white-space: nowrap; }

/* footer */
footer { background: var(--dark); color: rgba(255,255,255,.7); }
.footer-inner { padding: 64px 0 22px; }
.footer-grid { display:grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 52px; }
footer h3 { color:#fff; font-size: 16px; margin-bottom: 13px; font-weight:600}
footer a { color: rgba(255,255,255,.52); transition: .2s; font-size: 14px; line-height:2.2; }
footer a:hover { color: #fff; }
.footer-brand .brand-name { color:#fff; }
.footer-brand-desc { font-size: 14px; color: rgba(255,255,255,.5); margin: 20px 0 22px; line-height: 1.8; }
.footer-contact { display:flex; gap: 8px; font-size: 14px; color: rgba(255,255,255,.5); }
.footer-dash { margin: 38px 0 20px; height: 1px; background: rgba(255,255,255,.1); }
.footer-bottom { display:flex; justify-content:space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: rgba(255,255,255,.38); }
.footer-bottom a { font-size: 12.5px; }

/* media query */
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: repeat(2,1fr); }
  .toc { grid-template-columns: 1fr; }
  .split-inner { grid-template-columns: 1fr; gap:30px; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; grid-template-areas: "a b c" "a d d"; padding-bottom: 20px;}
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .header-top { height: 60px; }
  .header-actions .btn-primary { display: inline-flex; padding: 10px 16px; font-size:13px }
  .hero { padding: 60px 0 56px; }
  .hero h1 { font-size: 34px; }
  .hero-desc { font-size: 15px; }
  .hero-meta { gap: 14px; }
  .col-stack .card { flex-direction: column; }
  .col-stack .card .card-media { width: 100%; aspect-ratio: 16/8; }
  .data-block { padding: 30px 0; }
  .cta-block { padding: 48px 24px; }
  .cta-content { display:block; }
  .cta-btns { margin-top: 24px; }
  .tabs-container { overflow-x:auto; }
  .nav-tabs { height: auto; padding-bottom: 0; }
  .footer-grid { display:block; }
  .footer-brand { padding: 20px 0; }
  .footer-grid > div { margin: 0; padding: 12px 0; }
}
@media (max-width: 520px) {
  body { font-size: 14px; }
  .container { padding: 0 16px; }
  .brand-name { font-size: 19px; }
  .brand-logo { width: 34px; height: 34px; }
  .header-actions .btn-primary { display: none; }
  .featured-grid { gap: 20px; }
  .card-body { padding: 18px 18px; }
  .toc-item { padding: 18px 0; }
  .list-item { padding: 14px 14px; gap: 12px; }
  .list-date { width:auto; text-align:left; }
  .list-main h4 { font-size: 15px; }
  .list-main .list-excerpt { display:none; }
  .faq-q { font-size: 15px; }
  .data-row { display:grid; grid-template-columns: repeat(2,1fr); }
  .button-block { padding: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after { animation: none !important; transition: none !important; }
}

/* roulang page: category1 */
:root{
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --primary:#21463C;
  --primary-dark:#17362E;
  --accent:#B4835A;
  --accent-dark:#946747;
  --ink:#202B27;
  --muted:#65756F;
  --line:#E4DDD0;
  --dark:#102A24;
  --danger:#B4492C;
  --radius:4px;
  --radius-lg:8px;
  --shadow-sm:0 4px 14px rgba(16,42,36,.06);
  --shadow-hover:0 10px 24px rgba(16,42,36,.10);
  --transition:.25s ease-out;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:none;background:none;}
input,textarea{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}

.header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 16px rgba(32,43,39,.04);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:70px;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-logo{
  flex:0 0 auto;
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--primary);
  color:#fff;
  font-size:21px;
  font-weight:800;
  border-radius:4px;
  letter-spacing:.02em;
}
.brand-name{
  font-family:inherit;
  display:block;
  font-size:21px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.05em;
  line-height:1.2;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
}
.search-btn{
  width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  color:var(--primary);
  font-size:16px;
  transition:var(--transition);
}
.search-btn:hover{border-color:var(--primary);color:var(--accent-dark);}
.search-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--radius);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{background:var(--primary-dark);}
.btn-primary:active{transform:translateY(1px);background:var(--dark);}
.btn-primary:focus-visible{outline:3px solid rgba(33,70,60,.35);outline-offset:2px;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);}
.btn-accent:active{transform:translateY(1px);}
.btn-light{border:1px solid rgba(255,255,255,.55);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-outline{border:1px solid var(--line);color:var(--primary);background:transparent;}
.btn-outline:hover{border-color:var(--primary);background:rgba(33,70,60,.06);}

.nav-tabs{
  border-top:1px solid var(--line);
  background:#fffdf8;
  position:relative;
}
.nav-tabs .container{
  display:flex;
  align-items:center;
  gap:0;
  min-height:50px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-tabs .container::-webkit-scrollbar{display:none;}
.tab{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:50px;
  padding:0 26px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:var(--transition);
  border-bottom:2px solid transparent;
}
.tab:first-child{padding-left:0;}
.tab::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  height:2px;
  width:100%;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease-out;
}
.tab:hover{color:var(--primary);}
.tab:hover::after{transform:scaleX(1);}
.tab.active{color:var(--primary);font-weight:700;}
.tab.active::after{transform:scaleX(1);background:var(--primary);}
.tab:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:-2px;
  border-radius:2px;
}

.search-panel{
  position:absolute;
  top:100%;
  left:0;
  right:0;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:16px 0;
  display:none;
  z-index:99;
}
.search-panel.open{display:block;animation:fadeDown .3s ease-out;}
.search-form{
  display:flex;
  align-items:center;
  gap:10px;
}
.search-input{
  flex:1;
  min-height:46px;
  padding:0 18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  font-size:15px;
  color:var(--ink);
  transition:var(--transition);
}
.search-input::placeholder{color:#9aa69f;}
.search-input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(33,70,60,.12);
}
@keyframes fadeDown{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:translateY(0);}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

.hero{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  background-image:
    linear-gradient(83deg, rgba(16,42,36,.94) 0%, rgba(16,42,36,.72) 55%, rgba(16,42,36,.45) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:108px 0 120px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero-inner{
  max-width:740px;
  position:relative;
  z-index:2;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#E8DCCB;
  font-size:13px;
  letter-spacing:.12em;
  margin-bottom:20px;
  padding-left:14px;
  border-left:2px solid var(--accent);
}
.hero h1{
  color:#fff;
  font-size:58px;
  line-height:1.1;
  letter-spacing:-.01em;
  margin-bottom:24px;
}
.hero p.lead{
  color:rgba(255,255,255,.86);
  font-size:17px;
  line-height:1.85;
  max-width:640px;
  margin-bottom:36px;
}
.hero-actions{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
}
.link-underline{
  color:#fff;
  font-size:15px;
  font-weight:500;
  border-bottom:1px solid rgba(255,255,255,.4);
  padding-bottom:2px;
  transition:var(--transition);
}
.link-underline:hover{border-color:var(--accent);color:var(--accent);}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:42px;
}
.pill{
  display:inline-flex;
  align-items:center;
  min-height:28px;
  padding:0 13px;
  border:1px solid rgba(255,255,255,.35);
  border-radius:999px;
  color:#fff;
  font-size:13px;
  letter-spacing:.04em;
}

.section{
  padding:96px 0;
}
.section-head{
  max-width:680px;
  margin-bottom:48px;
}
.eyebrow{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--accent-dark);
  letter-spacing:.12em;
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:34px;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
}

.intro-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.intro-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.intro-media img{
  width:100%;
  height:520px;
  object-fit:cover;
  transition:transform .6s ease-out;
}
.intro-media:hover img{transform:scale(1.02);}
.intro-media::after{
  content:"";
  position:absolute;
  inset:0;
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  pointer-events:none;
}
.intro-content .eyebrow{color:var(--accent-dark);}
.intro-content h2{font-size:32px;margin-bottom:20px;}
.intro-content p{
  font-size:16px;
  color:var(--muted);
  margin-bottom:24px;
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--ink);
}
.check-list li:last-child{border-bottom:none;}
.check-list i{
  color:var(--primary);
  width:20px;
  margin-top:4px;
  flex:0 0 auto;
}
.intro-note{
  margin-top:24px;
  padding:16px 20px;
  background:rgba(180,131,90,.08);
  border-left:3px solid var(--accent);
  color:var(--ink);
  font-size:14px;
}

.pillar-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.pillar-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  display:flex;
  flex-direction:column;
  min-height:280px;
  transition:var(--transition);
  position:relative;
}
.pillar-card:hover{
  transform:translateY(-5px);
  border-color:rgba(33,70,60,.4);
  box-shadow:var(--shadow-hover);
}
.pillar-tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius);
  font-size:16px;
  font-weight:700;
  margin-bottom:28px;
}
.pillar-card h3{font-size:20px;margin-bottom:12px;}
.pillar-card p{
  color:var(--muted);
  font-size:15px;
  flex:1;
}
.pillar-card .link-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:26px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:var(--transition);
}
.pillar-card:hover .link-chip{color:var(--accent-dark);gap:11px;}

.dark-band{
  background:var(--dark);
  background-image:
    linear-gradient(rgba(16,42,36,.92), rgba(16,42,36,.92)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:88px 0;
}
.dark-band .eyebrow{color:var(--accent);}
.dark-band h2{color:#fff;}
.dark-band .muted-ct{color:rgba(255,255,255,.75);}

.four-col{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  margin-top:40px;
}
.feature-panel{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-lg);
  padding:26px 22px;
}
.feature-panel h3{
  color:#fff;
  font-size:17px;
  margin-bottom:10px;
}
.feature-panel p{
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1.7;
}
.feature-topline{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:14px;
}
.feature-topline i{color:var(--accent);font-size:20px;}
.feature-topline span{
  color:#F0C8A8;
  font-size:13px;
  letter-spacing:.08em;
}

.process-wrap{
  margin-top:16px;
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  counter-reset:steps;
}
.step-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:38px 28px;
  position:relative;
  overflow:hidden;
  transition:var(--transition);
}
.step-item:hover{
  border-color:rgba(33,70,60,.45);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.step-num{
  font-size:50px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:1px var(--primary);
  line-height:1;
  margin-bottom:22px;
  font-family:Georgia,"Times New Roman",serif;
  opacity:.75;
}
.step-item h3{font-size:19px;margin-bottom:14px;}
.step-item p{color:var(--muted);font-size:15px;}
.step-item .step-guide{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  color:var(--accent-dark);
  font-size:14px;
  font-weight:600;
  transition:var(--transition);
}
.step-item:hover .step-guide{gap:13px;color:var(--primary);}

.picks-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.pick-card{
  background:#fff;
  border:1px solid var(--line);
  overflow:hidden;
  border-radius:var(--radius-lg);
  transition:var(--transition);
}
.pick-card:hover{
  border-color:rgba(33,70,60,.35);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.pick-image{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:#d7d2c3;
}
.pick-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease-out;
}
.pick-card:hover .pick-image img{transform:scale(1.03);}
.pick-image .cat-flag{
  position:absolute;
  left:16px;
  top:16px;
  background:rgba(16,42,36,.86);
  color:#fff;
  font-size:12px;
  letter-spacing:.05em;
  padding:5px 10px;
  border-radius:999px;
}
.pick-body{
  padding:24px 24px 28px;
}
.pick-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
}
.pick-body p{
  color:var(--muted);
  font-size:14px;
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pick-body .link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:var(--transition);
}
.pick-card:hover .link-more{color:var(--accent-dark);gap:10px;}

.faq-block{
  max-width:900px;
  margin:0 auto;
  border-top:1px solid var(--line);
}
.faq-item{
  border-bottom:1px solid var(--line);
  background:transparent;
  transition:background .25s ease;
}
.faq-item.open{background:rgba(255,255,255,.6);}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:24px 8px;
  color:var(--ink);
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-question:hover{color:var(--primary);}
.faq-question:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:-2px;
  border-radius:4px;
}
.faq-icon{
  flex:0 0 auto;
  width:30px;
  height:30px;
  border:1px solid var(--line);
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  position:relative;
  background:#fff;
  transition:var(--transition);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  width:12px;
  height:1.5px;
  background:var(--primary);
  border-radius:2px;
}
.faq-icon::after{transform:rotate(90deg);transition:var(--transition);}
.faq-item.open .faq-icon{border-color:var(--primary);background:var(--primary);}
.faq-item.open .faq-icon::before{background:#fff;}
.faq-item.open .faq-icon::after{background:#fff;transform:rotate(0);}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease-out;
}
.faq-answer-inner{
  padding:0 42px 24px 8px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}

.cta{
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius-lg);
  margin:0 40px 120px;
  padding:72px 64px;
  position:relative;
  overflow:hidden;
}
.cta::before{
  content:"";
  position:absolute;
  width:320px;
  height:320px;
  border-radius:50%;
  background:rgba(180,131,90,.22);
  right:-80px;
  top:-100px;
}
.cta .cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
}
.cta h2{
  font-size:30px;
  color:#fff;
  margin-bottom:10px;
}
.cta p{
  color:rgba(255,255,255,.78);
  max-width:560px;
}
.cta-actions{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
}

footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-inner{
  padding-bottom:30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:48px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand .brand-name{
  color:#fff;
  font-size:20px;
}
.footer-brand .brand-logo{
  background:var(--accent);
  color:#102A24;
}
.footer-brand-desc{
  color:rgba(255,255,255,.5);
  font-size:14px;
  line-height:1.8;
  max-width:280px;
  margin-top:12px;
}
.footer-links h3,
.footer-contact h3{
  color:#fff;
  font-size:15px;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-links a{
  display:block;
  color:rgba(255,255,255,.58);
  font-size:14px;
  padding:6px 0;
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--accent);}
.footer-contact h3{margin-bottom:12px;}
.footer-contact p{
  font-size:13px;
  color:rgba(255,255,255,.4);
  line-height:1.8;
}
.footer-dash{
  border-top:1px solid rgba(255,255,255,.12);
  margin:40px 0 24px;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.34);
}
.footer-bottom a{
  color:rgba(255,255,255,.4);
  transition:color .2s ease;
}
.footer-bottom a:hover{color:#fff;}

@media (max-width: 1024px){
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .intro-media img{height:400px;}
  .pillar-grid{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .picks-grid{grid-template-columns:repeat(2,1fr);}
  .four-col{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .cta{margin:0 24px 90px;padding:56px 36px;}
}
@media (max-width: 768px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .hero{padding:84px 0 90px;}
  .hero h1{font-size:40px;}
  .hero p.lead{font-size:16px;}
  .section-head h2{font-size:28px;}
  .intro-content h2{font-size:26px;}
  .pillar-grid,
  .steps-grid,
  .picks-grid{grid-template-columns:1fr;}
  .four-col{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
  .cta{padding:44px 28px;margin:0 0 72px;border-radius:0;}
  .cta h2{font-size:25px;}
  .cta-actions{width:100%;}
  .header-top{min-height:64px;}
  .header-actions{gap:8px;}
  .btn{padding:0 16px;font-size:14px;}
}
@media (max-width: 520px){
  .container{padding:0 16px;}
  .hero h1{font-size:34px;}
  .hero p.lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .link-underline{padding:8px 0;}
  .hero-meta{gap:8px;}
  .intro-media img{height:300px;}
  .tab{padding:0 16px;font-size:14px;}
  .pillar-card{padding:24px 22px;}
  .step-item{padding:28px 20px;}
  .picks-grid{gap:16px;}
  .header-top .btn-primary{min-height:38px;padding:0 14px;font-size:13px;}
  .btn-accent{width:100%;}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
  :root {
    --bg: #F6F3EC;
    --surface: #FFFFFF;
    --primary: #21463C;
    --primary-dark: #17362E;
    --accent: #B4835A;
    --accent-dark: #946747;
    --ink: #202B27;
    --ink-weak: #65756F;
    --muted: #889690;
    --line: #E4DDD0;
    --line-soft: #EFE9DE;
    --deep: #102A24;
    --mark: #B4492C;
    --radius: 6px;
    --shadow-sm: 0 1px 2px rgba(18, 32, 28, .03), 0 10px 30px rgba(18, 32, 28, .04);
    --shadow-md: 0 2px 6px rgba(18, 32, 28, .05), 0 18px 44px rgba(18, 32, 28, .08);
    --container: 1280px;
    --space-block: 96px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  }

  /* ============ Reset ============ */
  *, *::before, *::after {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
  }
  body.nav-open {
    overflow: hidden;
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease;
  }
  button, input, textarea {
    font-family: inherit;
    font-size: inherit;
  }
  button {
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
  }
  ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  p, h1, h2, h3, h4, h5, h6 {
    margin: 0;
  }
  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }
  ::selection {
    background: rgba(180, 131, 90, .22);
    color: var(--ink);
  }

  .skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--deep);
    color: #fff;
    padding: 10px 18px;
    z-index: 9999;
    border-radius: 0 0 6px 0;
  }
  .skip-link:focus {
    left: 0;
    color: #fff;
  }

  .container {
    width: 100%;
    max-width: var(--container);
    margin-left: auto;
    margin-right: auto;
    padding-left: 40px;
    padding-right: 40px;
  }

  h1, h2, h3, h4 {
    color: var(--ink);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.01em;
  }

  /* ============ 双栏页眉 ============ */
  .header {
    background: #FBFAF5;
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .header-top {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
  }
  .brand-logo {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -.02em;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(33, 70, 60, .18);
  }
  .brand-name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .01em;
    color: var(--ink);
    line-height: 1.3;
    white-space: nowrap;
  }
  .brand-tag {
    display: block;
    font-size: 10px;
    color: var(--ink-weak);
    letter-spacing: .1em;
    font-weight: 400;
  }
  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .search-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    background: #fff;
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
  }
  .search-btn:hover {
    border-color: var(--accent);
    background: #fffdf8;
    transform: translateY(-1px);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
  }
  .btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(32, 73, 61, .15);
  }
  .btn-accent {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }
  .btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(180, 131, 90, .14);
  }
  .btn-outline {
    background: transparent;
    border-color: var(--line);
    color: var(--ink);
  }
  .btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
  }
  .btn-light {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
  }
  .btn-light:hover {
    background: #F0EEE7;
    border-color: #F0EEE7;
    transform: translateY(-1px);
  }
  .btn-block {
    width: 100%;
  }
  .btn.disabled,
  .btn:disabled {
    opacity: .45;
    pointer-events: none;
    box-shadow: none;
    filter: grayscale(.2);
  }

  .nav-tabs {
    border-top: 1px solid var(--line-soft);
    background: #FFFFFF;
  }
  .nav-tabs .container {
    display: flex;
    align-items: center;
    gap: 4px;
    min-height: 48px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav-tabs .container::-webkit-scrollbar {
    display: none;
  }
  .tab {
    position: relative;
    padding: 13px 14px 11px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-weak);
    white-space: nowrap;
    flex: 0 0 auto;
    transition: color .2s ease;
  }
  .tab::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 2px 2px 0 0;
    transform: scaleX(.2);
    opacity: 0;
    transition: transform .3s ease, opacity .3s ease;
  }
  .tab:hover {
    color: var(--primary);
  }
  .tab.active {
    color: var(--primary);
    font-weight: 700;
    background: #F2EFE7;
  }
  .tab.active::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .search-panel {
    display: none;
    border-top: 1px solid var(--line-soft);
    background: #FFFFFF;
    padding: 16px 0;
  }
  .search-panel.open {
    display: block;
  }
  .search-form {
    display: flex;
    gap: 10px;
  }
  .search-input {
    flex: 1;
    height: 44px;
    border: 1px solid var(--line);
    background: var(--bg);
    border-radius: var(--radius);
    padding: 0 16px;
    font-size: 14px;
    color: var(--ink);
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  }
  .search-input::placeholder {
    color: var(--muted);
  }
  .search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(33, 70, 60, .08);
  }

  /* ============ 文章页区 ============ */
  .article-page {
    background: var(--bg);
    padding: 48px 0 0;
  }

  .crumbs {
    max-width: 900px;
    margin: 0 auto 32px;
    font-size: 13px;
    color: var(--ink-weak);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    padding: 0 20px;
  }
  .crumbs a {
    color: var(--ink-weak);
    border-bottom: 1px solid transparent;
    transition: color .2s, border-color .2s;
  }
  .crumbs a:hover {
    color: var(--primary);
    border-color: var(--accent);
  }
  .crumbs i {
    font-size: 10px;
    color: var(--line-soft);
  }
  .crumb-here {
    color: var(--ink);
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .article-shell {
    max-width: 900px;
    margin: 0 auto;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    padding: 64px 72px 72px;
    position: relative;
  }

  .article-head {
    max-width: 760px;
    margin: 0 auto 48px;
    text-align: left;
    border-bottom: 1px solid var(--line-soft);
    padding-bottom: 32px;
  }
  .head-kicker {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
  }
  .pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px 3px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink-weak);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .06em;
    border-radius: 999px;
    line-height: 1.5;
  }
  .pill-accent {
    border-color: transparent;
    background: rgba(214, 187, 155, .25);
    color: #7A5335;
    font-weight: 600;
  }
  .article-head h1 {
    font-size: clamp(28px, 4.3vw, 42px);
    line-height: 1.28;
    letter-spacing: -0.015em;
    margin-bottom: 18px;
    font-weight: 750;
  }
  .article-lead {
    font-size: 15px;
    line-height: 1.9;
    color: var(--ink-weak);
    margin: 0 0 26px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .byline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    color: var(--muted);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
  }
  .byline .split {
    color: var(--line);
  }
  .byline-brand {
    color: var(--primary);
    font-weight: 600;
  }
  .byline i {
    color: var(--accent);
  }

  .article-body {
    max-width: 760px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.9;
    color: #25332E;
    word-wrap: break-word;
  }
  .article-body > * + * {
    margin-top: 1.2em;
  }
  .article-body h2,
  .article-body h3,
  .article-body h4 {
    line-height: 1.4;
  }
  .article-body h2 {
    font-size: 25px;
    margin: 2.2em 0 .8em;
    padding-bottom: .35em;
    border-bottom: 1px solid var(--line-soft);
  }
  .article-body h3 {
    font-size: 20px;
    margin-top: 2em;
    color: var(--primary);
  }
  .article-body h4 {
    font-size: 17px;
    margin-top: 1.8em;
  }
  .article-body p {
    margin-bottom: 1.2em;
  }
  .article-body a:not(.btn) {
    color: var(--primary);
    border-bottom: 1px solid rgba(33, 70, 60, .35);
    transition: border-color .2s, color .2s;
  }
  .article-body a:not(.btn):hover {
    color: var(--accent-dark);
    border-color: var(--accent);
  }
  .article-body ul,
  .article-body ol {
    padding-left: 1.4em;
    margin-bottom: 1.4em;
  }
  .article-body ul li {
    list-style: disc;
    padding-left: .2em;
    margin-bottom: .45em;
  }
  .article-body ol li {
    list-style: decimal;
    padding-left: .2em;
    margin-bottom: .5em;
  }
  .article-body blockquote {
    margin: 2em 0;
    padding: 20px 24px;
    background: #FAF7F1;
    border-left: 3px solid var(--accent);
    color: #4E5D58;
    font-size: 15px;
    line-height: 1.85;
    border-radius: 0 var(--radius) var(--radius) 0;
  }
  .article-body blockquote p {
    margin-bottom: .6em;
  }
  .article-body blockquote cite {
    display: block;
    font-style: normal;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: .04em;
  }
  .article-body img {
    width: auto;
    max-width: 100%;
    margin: 2em auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
  }
  .article-body figure {
    margin: 2em 0;
  }
  .article-body figure img {
    margin-bottom: 8px;
  }
  .article-body figcaption {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    line-height: 1.7;
  }
  .article-body hr {
    border: none;
    height: 1px;
    background: var(--line-soft);
    margin: 3em auto;
    max-width: 320px;
  }
  .article-body strong {
    color: var(--ink);
    font-weight: 700;
  }
  .article-body code {
    background: #EFEDE6;
    border-radius: 4px;
    padding: .1em .4em;
    font-size: .9em;
  }
  .article-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin: 2em 0;
  }
  .article-body th,
  .article-body td {
    border: 1px solid var(--line-soft);
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
  }
  .article-body th {
    background: #F7F4ED;
    color: var(--ink);
    font-weight: 600;
  }

  .article-after {
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid var(--line-soft);
  }
  .article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }
  .article-tags .tag-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .08em;
    color: var(--ink-weak);
  }
  .tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--ink-weak);
    background: #F7F4EE;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 4px 12px;
    transition: all .2s ease;
  }
  a.tag-chip:hover {
    color: var(--primary);
    border-color: var(--accent);
    background: #FFFDF8;
  }

  .article-tools {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--line-soft);
  }
  .article-origin {
    font-size: 13px;
    color: var(--muted);
  }
  .article-origin strong {
    color: var(--ink);
    font-weight: 600;
  }
  .tool-actions {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .icon-btn {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    color: var(--ink-weak);
    transition: all .2s ease;
  }
  .icon-btn:hover {
    color: var(--accent-dark);
    border-color: var(--accent);
  }

  /* 文章下方延伸推荐 */
  .channel-promo {
    max-width: 900px;
    margin: 56px auto 96px;
    padding: 0 20px;
  }
  .promo-card {
    background:
      radial-gradient(ellipse at 80% 10%, rgba(180, 131, 90, .2) 0%, transparent 40%),
      linear-gradient(135deg, #14332B, var(--deep));
    color: #fff;
    border-radius: 10px;
    padding: 44px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(16, 42, 36, .18);
  }
  .promo-card::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 50%;
    pointer-events: none;
  }
  .promo-copy {
    position: relative;
    z-index: 2;
    flex: 1 1 auto;
  }
  .promo-eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: .12em;
    color: rgba(255, 255, 255, .68);
    text-transform: none;
    margin-bottom: 12px;
  }
  .promo-eyebrow::before {
    content: "";
    width: 22px;
    height: 1px;
    background: var(--accent);
    display: inline-block;
  }
  .promo-card h2 {
    font-size: clamp(20px, 2.2vw, 27px);
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: .01em;
  }
  .promo-card p {
    font-size: 14px;
    line-height: 1.85;
    color: rgba(255, 255, 255, .72);
    max-width: 540px;
    margin-bottom: 24px;
  }
  .promo-media {
    display: block;
    width: 180px;
    height: 210px;
    flex: 0 0 180px;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .2);
    border: 1px solid rgba(255, 255, 255, .18);
  }
  .promo-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s ease;
  }
  .promo-card:hover .promo-media img {
    transform: scale(1.03);
  }

  /* ============ 未找到 ============ */
  .article-missing {
    min-height: 54vh;
    padding: 80px 20px 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  .missing-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    max-width: 640px;
    width: 100%;
    padding: 72px 40px;
  }
  .missing-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 28px;
    border-radius: 50%;
    background: #F2EFE7;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-dark);
    font-size: 24px;
  }
  .missing-card h1 {
    font-size: 30px;
    margin-bottom: 14px;
  }
  .missing-card p {
    color: var(--ink-weak);
    font-size: 15px;
    max-width: 440px;
    margin: 0 auto 32px;
    line-height: 1.8;
  }

  /* ============ 页脚 ============ */
  footer {
    background: var(--deep);
    color: rgba(255, 255, 255, .7);
    padding-top: 64px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
  }
  .footer-brand {
    max-width: 320px;
  }
  .footer-brand .brand-name {
    color: #fff;
  }
  .footer-brand-desc {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, .58);
    margin: 18px 0 0;
  }
  .footer-links h3 {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    letter-spacing: .06em;
    text-transform: none;
    margin: 0 0 16px;
  }
  .footer-links a {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, .55);
    padding: 5px 0;
    transition: color .2s ease, padding-left .2s ease;
  }
  .footer-links a:hover {
    color: #fff;
    padding-left: 4px;
  }
  .footer-contact p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .55);
  }
  .footer-dash {
    height: 1px;
    background: rgba(255, 255, 255, .12);
  }
  .footer-bottom {
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, .35);
  }
  .footer-bottom a {
    color: rgba(255, 255, 255, .45);
    transition: color .2s ease;
  }
  .footer-bottom a:hover {
    color: #fff;
  }

  /* 共用的响应式 */
  @media (max-width: 1024px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    .promo-card {
      padding: 36px 32px;
    }
  }

  @media (max-width: 768px) {
    .container {
      padding-left: 20px;
      padding-right: 20px;
    }
    .header-top {
      height: 64px;
    }
    .brand-name {
      font-size: 16px;
    }
    .brand-logo {
      width: 34px;
      height: 34px;
      font-size: 16px;
    }
    .article-page {
      padding-top: 24px;
    }
    .article-shell {
      padding: 40px 24px 48px;
      border-radius: 0;
      border-left: none;
      border-right: none;
    }
    .article-head {
      margin-bottom: 36px;
    }
    .article-head h1 {
      font-size: 28px;
    }
    .article-body {
      font-size: 15px;
    }
    .article-body h2 {
      font-size: 21px;
    }
    .article-body h3 {
      font-size: 18px;
    }
    .crumbs {
      margin-bottom: 20px;
    }
    .promo-card {
      flex-direction: column;
      padding: 32px 26px;
      gap: 24px;
    }
    .promo-media {
      width: 100%;
      height: 200px;
      flex: none;
    }
    .article-tools {
      align-items: flex-start;
    }
    .footer-bottom {
      justify-content: center;
      text-align: center;
      padding: 20px 0;
    }
  }

  @media (max-width: 560px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }
    .header-top {
      height: 60px;
      gap: 8px;
    }
    .header-actions .btn {
      padding: 0 12px;
      font-size: 13px;
      height: 38px;
    }
    .tab {
      padding: 12px 12px 9px;
      font-size: 13px;
    }
    .nav-tabs .container {
      padding-left: 12px;
    }
    .brand-logo {
      width: 30px;
      height: 30px;
      font-size: 14px;
    }
    .brand-name {
      font-size: 15px;
    }
    .article-shell {
      padding: 48px 15px 44px;
    }
    .article-head {
      padding-bottom: 24px;
    }
    .article-head h1 {
      font-size: 25px;
    }
    .article-lead {
      font-size: 14px;
    }
    .byline {
      gap: 6px 12px;
    }
    .article-body {
      font-size: 15px;
      line-height: 1.85;
    }
    .article-after {
      margin-top: 36px;
    }
    .search-form {
      flex-direction: column;
    }
    .search-form .btn {
      width: 100%;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 36px;
    }
    .promo-card {
      padding: 32px 20px;
    }
    .promo-media {
      height: 180px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation: none !important;
      transition: none !important;
      scroll-behavior: auto !important;
    }
  }

/* roulang page: category2 */
:root{
  --paper:#f6f3ec;
  --card:#ffffff;
  --green:#21463c;
  --green-deep:#17362e;
  --green-dark:#102a24;
  --copper:#b4835a;
  --copper-deep:#946747;
  --ink:#202b27;
  --ink-soft:#65756f;
  --line:#e4ddd0;
  --red:#b4492c;
  --radius-xs:2px;
  --radius-sm:5px;
  --radius-md:10px;
  --shadow-sm:0 6px 20px rgba(16,42,36,.06);
  --shadow-md:0 14px 38px rgba(16,42,36,.10);
  --transition:all .32s cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::selection{background:rgba(180,131,90,.28)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
input{font-family:inherit;border:0;outline:0}
ul,ol{list-style:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:10px 22px;
  border-radius:5px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  white-space:nowrap;transition:var(--transition);
}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 6px 18px rgba(33,70,60,.14)}
.btn-primary:hover{background:var(--green-deep);transform:translateY(-1px);box-shadow:0 10px 24px rgba(33,70,60,.20)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-copper{background:var(--copper);color:#fff}
.btn-copper:hover{background:var(--copper-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.07)}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green)}
.btn-outline:hover{background:var(--green);color:#fff}
.btn:focus-visible,.text-link:focus-visible,a:focus-visible{
  outline:3px solid rgba(180,131,90,.5);outline-offset:3px;border-radius:3px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--green);font-size:15px;transition:var(--transition)}
.text-link i{transition:transform .3s ease}
.text-link:hover{color:var(--copper-deep)}
.text-link:hover i{transform:translateX(5px)}
.text-link.light{color:#fff}
.text-link.light:hover{color:var(--copper)}
.tag{
  display:inline-flex;align-items:center;min-height:26px;padding:2px 12px;
  border:1px solid var(--line);border-radius:100px;
  background:transparent;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink-soft);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--copper);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--copper);flex:none}
.card{border:1px solid var(--line);background:var(--card);border-radius:var(--radius-sm);transition:var(--transition)}
:where(h1,h2,h3,h4,h5){line-height:1.25;color:var(--ink);font-weight:700;text-wrap:balance}
:where(h1,h2,h3,h4,h5,p){overflow-wrap:break-word}

/* header */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,243,236,.97);
  border-bottom:1px solid var(--line);
  transition:var(--transition);
}
.header-top{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;text-decoration:none}
.brand-logo{
  width:38px;height:38px;flex:none;display:grid;place-items:center;
  background:var(--green);color:#fff;font-size:20px;font-weight:800;
  border-radius:4px;letter-spacing:-.02em;
}
.brand-name{
  font-size:19px;font-weight:800;color:var(--green);
  letter-spacing:-.01em;white-space:nowrap;
}
.brand-sub{display:block;font-size:10px;letter-spacing:.16em;color:var(--ink-soft);margin-top:2px;font-weight:500}
.header-actions{display:flex;align-items:center;gap:14px;flex:none}
.search-btn{
  display:inline-flex;align-items:center;gap:9px;
  height:42px;padding:0 16px;border:1px solid var(--line);border-radius:100px;
  background:#fff;color:var(--green);transition:var(--transition);font-size:14px;
}
.search-btn i{font-size:15px}
.search-btn:hover{border-color:var(--copper);color:var(--copper-deep)}
.search-btn.active{background:var(--green);color:#fff;border-color:var(--green)}
.nav-tabs{
  position:relative;border-top:1px solid rgba(228,221,208,.8);
}
.nav-tabs-list{
  display:flex;gap:2px;overflow-x:auto;align-items:center;
  padding:0;scrollbar-width:none;height:52px;
}
.nav-tabs-list::-webkit-scrollbar{display:none}
.tab{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  height:52px;padding:0 18px;margin-right:8px;
  font-size:15px;font-weight:600;color:#4d5b55;flex:none;
  border-bottom:2px solid transparent;transition:var(--transition);white-space:nowrap;
}
.tab:hover{color:var(--green);background:rgba(33,70,60,.05)}
.tab:focus-visible{outline:3px solid rgba(180,131,90,.4);outline-offset:-3px}
.tab.active{
  color:var(--green);font-weight:800;
  border-bottom-color:var(--green);background:rgba(33,70,60,.06);
}
.tab.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;
  background:var(--copper);border-radius:3px 3px 0 0;
}
.tab .tab-dot{width:5px;height:5px;border-radius:50%;background:var(--copper);opacity:.8}
.search-panel{
  position:absolute;left:0;right:0;top:calc(122px);
  display:none;background:var(--card);
  border-bottom:1px solid var(--line);
  padding:18px 0;box-shadow:var(--shadow-md);z-index:-1;
}
.search-panel.open{display:block;animation:menuIn .24s ease-out}
.search-form{display:flex;gap:10px;max-width:760px;width:100%;margin:0 auto}
.search-input{
  flex:1;min-width:0;height:48px;padding:0 18px;
  background:var(--paper);border:1px solid var(--line);border-radius:5px;color:var(--ink);
  font-size:15px;transition:var(--transition);
}
.search-input:focus{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px rgba(33,70,60,.1)}
.search-input::placeholder{color:#9a9f99}
@keyframes menuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

/* hero */
.hero{
  position:relative;display:flex;align-items:center;
  padding:108px 0 102px;color:#fff;overflow:hidden;
  background:linear-gradient(90deg,rgba(16,42,36,.93) 0%,rgba(16,42,36,.78) 42%,rgba(16,42,36,.35) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to bottom,rgba(16,42,36,.2),rgba(16,42,36,.42));
}
.hero-inner{position:relative;z-index:2;max-width:740px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  color:#cfd9d3;font-size:13px;font-weight:600;letter-spacing:.14em;
  margin-bottom:20px;text-transform:uppercase;
}
.hero-eyebrow i{color:var(--copper);font-size:14px}
.hero h1{
  font-size:62px;line-height:1.08;color:#fff;font-weight:800;
  letter-spacing:-.04em;margin-bottom:22px;text-shadow:0 2px 18px rgba(0,0,0,.12)
}
.hero h1 small{display:block;font-size:20px;font-weight:500;line-height:1.6;letter-spacing:.04em;color:#d6dfda;margin-top:18px}
.hero-desc{
  margin-top:24px;font-size:17px;line-height:1.9;color:#e9eeeb;max-width:620px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.hero-tags .tag{
  color:#dfe6e2;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.05);
  letter-spacing:.04em;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:42px;align-items:center}
.hero-note{margin-top:26px;font-size:13px;color:rgba(255,255,255,.58);letter-spacing:.04em}
.hero-badge{position:absolute;right:40px;bottom:40px;z-index:2;color:#fff;text-align:right}
@media(max-width:1280px){
  .hero-badge{display:none}
}
.hero-ticker{
  display:flex;gap:26px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  color:#ccd6d1;font-size:13px;flex-wrap:wrap;
}
.hero-ticker strong{color:#fff;font-weight:700;margin-right:6px}

/* sections */
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{max-width:780px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:34px;margin:16px 0 12px;letter-spacing:-.03em}
.section-head .lead{color:var(--ink-soft);font-size:16px;line-height:1.85}
.section-sub-line{margin-top:16px;font-size:15px;color:var(--ink-soft);max-width:740px}
.grid{display:grid;gap:24px}

/* intro */
.intro-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:center}
.intro-copy h2{font-size:34px;line-height:1.3;margin:16px 0 16px;letter-spacing:-.03em}
.intro-copy p{color:var(--ink-soft);line-height:2;font-size:16px}
.intro-copy p+p{margin-top:14px}
.intro-list{display:grid;grid-template-columns:1fr;border-top:1px solid var(--line)}
.intro-list li{
  display:flex;gap:24px;border-bottom:1px solid var(--line);padding:26px 4px;align-items:flex-start;
  background:#fffdf8;transition:var(--transition)
}
.intro-list li:hover{background:#fff;box-shadow:var(--shadow-sm)}
.intro-list .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--copper);font-size:17px;font-weight:700;flex:none;padding-top:4px;
}
.intro-list b{display:block;font-size:17px;color:var(--ink);margin-bottom:5px}
.intro-list span{font-size:14px;color:var(--ink-soft);line-height:1.8;display:block}

/* topic lead mixed */
.mix-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:stretch}
.mix-main{
  position:relative;overflow:hidden;display:flex;flex-direction:column;
  min-height:440px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-sm);transition:var(--transition);
}
.mix-main:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.mix-main .mix-img-wrap{height:210px;overflow:hidden;position:relative}
.mix-main img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.mix-main:hover img{transform:scale(1.025)}
.mix-main .mix-body{padding:30px 34px 26px;flex:1;display:flex;flex-direction:column}
.pill{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--copper-deep);
  padding:4px 11px;border:1px solid rgba(180,131,90,.35);border-radius:100px;width:fit-content;
}
.mix-main h3{font-size:24px;line-height:1.45;margin:14px 0 12px;transition:color .2s}
.mix-main:hover h3{color:var(--green)}
.mix-main p{color:var(--ink-soft);font-size:14px;line-height:1.8;flex:1}
.mix-main .mix-foot{padding:14px 32px 20px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f1ecdf;color:var(--ink-soft);font-size:13px}
.mix-side{display:flex;flex-direction:column;gap:0;background:#f9f6ef;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mix-row{
  display:flex;gap:20px;align-items:center;padding:25px 12px;border-bottom:1px solid var(--line);
  transition:var(--transition);position:relative;background:transparent;
}
.mix-row:last-child{border-bottom:0}
.mix-row:hover{background:#fff;padding-left:19px;box-shadow:inset 3px 0 0 var(--copper)}
.mix-row .num{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;color:var(--copper);font-weight:700}
.mix-row .row-title{flex:1;min-width:0}
.mix-row b{display:block;font-size:16px;font-weight:700;color:var(--ink);margin-bottom:5px;line-height:1.4}
.mix-row span{display:block;font-size:13px;color:var(--ink-soft);line-height:1.7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.mix-row .go{color:var(--copper);opacity:0;transform:translateX(-8px);transition:var(--transition)}
.mix-row:hover .go{opacity:1;transform:translateX(0)}

/* scene cards */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:34px 26px 26px;position:relative;transition:var(--transition);overflow:hidden;
}
.scene-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--copper);opacity:0;transition:var(--transition);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.scene-card:hover::before{opacity:1}
.scene-card .icon{
  width:48px;height:48px;display:grid;place-items:center;background:rgba(33,70,60,.09);
  color:var(--green);font-size:20px;border-radius:8px;margin-bottom:20px;
}
.scene-card h3{font-size:20px;margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--ink-soft);line-height:1.85}
.scene-card .tag{position:absolute;top:20px;right:18px;font-size:10px;min-height:22px;padding:0 8px;background:rgba(180,131,90,.08);border-color:rgba(180,131,90,.22);color:var(--copper-deep)}

/* reading strip */
.reading-list{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.reading-row{display:grid;grid-template-columns:150px 1fr 90px;gap:10px;align-items:center;
  padding:22px 8px;border-bottom:1px solid #f0ebdf;transition:var(--transition)}
.reading-row:last-child{border-bottom:0}
.reading-row:hover{background:#faf7f0;padding-left:19px}
.reading-row .meta{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--copper-deep);font-size:13px;font-weight:700}
.reading-row .info b{color:var(--ink);font-size:17px;font-weight:700;transition:color .2s}
.reading-row:hover .info b{color:var(--green)}
.reading-row .info span{display:block;font-size:13px;color:var(--ink-soft);max-width:700px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.reading-row .arrow{color:var(--ink-soft);text-align:right;font-size:18px;transition:var(--transition)}
.reading-row:hover .arrow{color:var(--copper);transform:translateX(5px)}

/* method */
.method-wrap{background:var(--green-dark);border-radius:14px;padding:62px 50px;color:#fff;position:relative;overflow:hidden}
.method-wrap::after{content:"";position:absolute;bottom:-130px;right:-70px;width:280px;height:280px;border:1px solid rgba(255,255,255,.1);border-radius:50%}
.method-top{max-width:680px;position:relative;z-index:2}
.method-top h2{color:#fff;font-size:34px;margin:16px 0 18px;letter-spacing:-.03em}
.method-top p{color:#c8d3cf;line-height:1.9;font-size:15px}
.method-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:50px;position:relative;z-index:2}
.method-steps .step{padding:26px;border:1px solid rgba(255,255,255,.16);border-radius:10px;background:rgba(255,255,255,.04);transition:var(--transition)}
.method-steps .step:hover{background:rgba(255,255,255,.09);transform:translateY(-4px);border-color:rgba(255,255,255,.32)}
.method-steps .step b{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;margin-bottom:12px}
.method-steps .step b em{font-style:normal;color:var(--copper);font-family:ui-monospace,monospace;font-weight:700;font-size:14px}
.method-steps .step p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78)}

/* FAQ */
.faq-grid{max-width:1080px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;
  padding:24px 8px;color:var(--ink);font-size:18px;font-weight:700;transition:var(--transition);
}
.faq-q:hover{color:var(--green)}
.faq-q .faq-icon{
  flex:none;width:34px;height:34px;display:grid;place-items:center;font-size:22px;
  border-radius:50%;background:rgba(33,70,60,.08);color:var(--green);transition:var(--transition);
}
.faq-item.open .faq-icon{background:var(--green);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 30px 28px 8px;color:var(--ink-soft);font-size:15px;line-height:2}
.faq-item.open .faq-a{display:block;animation:fadeIn .3s ease-out}
.faq-a strong{color:var(--ink);font-weight:700}
@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* CTA */
.cta-deep{
  padding:72px 0;
  background:linear-gradient(110deg,#17362e 0%,#102a24 55%,#17362e 100%);
  color:#fff;position:relative;overflow:hidden;
}
.cta-deep::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 90% 20%,rgba(180,131,90,.18),transparent)}
.cta-inner{position:relative;z-index:2;display:flex;justify-content:space-between;gap:44px;align-items:flex-end;flex-wrap:wrap}
.cta-copy h2{color:#fff;font-size:34px;letter-spacing:-.03em;line-height:1.35;max-width:660px;margin-bottom:12px}
.cta-copy p{color:#c9d6d0;font-size:15px;line-height:1.9;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-note{width:100%;font-size:12px;color:rgba(255,255,255,.35);margin-top:20px;letter-spacing:.04em}

/* footer */
footer{background:#0d211c;color:rgba(255,255,255,.66);padding:72px 0 26px;font-size:14px}
.footer-inner{}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand a.brand{margin-bottom:16px}
.footer-brand-desc{margin-top:14px;line-height:1.9;color:rgba(255,255,255,.55);font-size:14px;max-width:340px}
.footer-links h3{color:#fff;font-size:15px;margin-bottom:20px;font-weight:700}
.footer-links a{display:block;color:rgba(255,255,255,.6);padding:5px 0;transition:var(--transition);font-size:14px}
.footer-links a:hover{color:var(--copper);padding-left:5px}
.footer-contact h3{color:#fff;font-size:15px;margin-bottom:20px;font-weight:700}
.footer-dash{border-top:1px solid rgba(255,255,255,.1);margin:46px 0 24px}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px}
.footer-bottom a{color:rgba(255,255,255,.7);transition:var(--transition)}
.footer-bottom a:hover{color:#fff}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
  html{scroll-behavior:auto}
}

/* tablet / mobile */
@media(max-width:1180px){
  .scene-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .method-steps{grid-template-columns:repeat(2,1fr)}
  .intro-grid{gap:44px}
}
@media(max-width:1024px){
  .container{padding:0 30px}
  .nav-tabs-list{padding:0 10px}
  .mix-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero{padding:82px 0}
  .hero h1{font-size:50px}
  .section{padding:70px 0}
  .method-wrap{padding:42px 30px}
}
@media(max-width:768px){
  .header-top{height:62px}
  .brand-name{font-size:17px}
  .search-btn{padding:0 14px}
  .search-btn span{display:none}
  .nav-tabs-list{height:46px}
  .nav-tabs-list{padding:0 18px}
  .tab{height:46px;padding:0 14px}
  .search-panel{top:110px;padding:14px}
  .search-form{width:100%}
  .hero{padding:72px 0}
  .hero h1{font-size:40px;letter-spacing:-.02em}
  .hero h1 small{font-size:16px}
  .hero-desc{font-size:15px}
  .hero-cta .btn{width:100%}
  .container{padding:0 20px}
  .intro-grid,.foot-grid{grid-template-columns:1fr}
  .section-head h2{font-size:27px}
  .reading-row{grid-template-columns:92px 1fr 40px}
  .method-steps{grid-template-columns:1fr}
  .scene-card{padding:26px}
  .cta-inner{align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media(max-width:520px){
  .header-top .btn-primary{padding:0 13px;min-height:38px;font-size:13px}
  .brand-name{font-size:16px}
  .brand-logo{width:34px;height:34px;font-size:17px}
  .hero h1{font-size:34px}
  .hero h1 small{font-size:14px;margin-top:14px}
  .hero-ticker{gap:14px}
  .btn{min-height:44px;padding:8px 15px;font-size:14px;width:auto}
  .mix-main .mix-img-wrap{height:180px}
  .mix-main .mix-body{padding:22px 20px}
  .mix-main h3{font-size:20px}
  .reading-row{grid-template-columns:1fr}
  .reading-row .meta{font-size:11px}
  .reading-row .arrow{display:none}
  .method-wrap{padding:40px 20px;border-radius:8px}
  .faq-q{padding:18px 4px;font-size:16px}
  .cta-deep{padding:48px 0}
  .cta-deep h2{font-size:25px}
  .footer-inner{padding:0 20px}
}

/* roulang page: category3 */
:root{
  --paper:#F6F3EC;
  --card:#ffffff;
  --ink:#202B27;
  --muted:#65756F;
  --line:#E4DDD0;
  --green:#21463C;
  --green-dark:#17362E;
  --copper:#B4835A;
  --copper-dark:#946747;
  --night:#102A24;
  --night-2:#15352D;
  --danger:#B4492C;
  --radius:6px;
  --radius-lg:10px;
  --shadow:0 12px 30px rgba(28,51,44,.08);
  --shadow-soft:0 4px 14px rgba(28,51,44,.06);
  --space-section:96px;
  --space-section-mobile:60px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
p{margin:0}
.container{
  width:min(100% - 48px,1280px);
  margin-left:auto;
  margin-right:auto;
}
@media(max-width:640px){
  .container{width:min(100% - 32px,1280px)}
}
.header{
  position:sticky;
  top:0;
  z-index:200;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-flex{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-logo{
  width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--green);
  color:#fff;
  font-size:21px;
  font-weight:800;
  border-radius:5px;
  letter-spacing:-.05em;
}
.brand-name{
  font-size:21px;
  font-weight:800;
  color:var(--ink);
  line-height:1.2;
  white-space:nowrap;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-btn{
  width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:6px;
  background:#fff;
  color:var(--green);
  font-size:16px;
  transition:border-color .25s ease,background .25s ease,color .25s ease;
}
.search-btn:hover{border-color:var(--copper);color:var(--copper-dark);background:#FCFAF4}
.search-btn:focus-visible,.btn:focus-visible,input:focus-visible,button:focus-visible{
  outline:3px solid rgba(180,131,90,.35);
  outline-offset:2px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  border-radius:6px;
  font-size:14px;
  font-weight:600;
  transition:background .25s ease,border-color .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--green);
  color:#fff;
}
.btn-primary:hover{background:var(--green-dark)}
.btn-primary:active{background:#12322a;transform:scale(.98)}
.btn-copper{
  background:var(--copper);
  color:#fff;
}
.btn-copper:hover{background:var(--copper-dark)}
.btn-copper:active{background:#7a543a;transform:scale(.98)}
.btn-line{
  border-color:rgba(255,255,255,.32);
  color:#fff;
  background:transparent;
}
.btn-line:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-light{
  background:#fff;
  color:var(--green);
}
.btn-light:hover{background:#F3EFE6}
.nav-tabs{
  background:#fff;
  border-top:1px solid var(--paper);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  white-space:nowrap;
  padding:10px 0 12px;
}
.nav-inner::-webkit-scrollbar{display:none}
.tab{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  border-radius:999px;
  position:relative;
  transition:background .25s ease,color .25s ease;
}
.tab:hover{color:var(--green);background:rgba(33,70,60,.06)}
.tab.active{
  color:var(--green);
  font-weight:700;
  background:rgba(33,70,60,.09);
}
.tab.active::after{
  content:'';
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  background:var(--copper);
  border-radius:2px;
}
.search-panel{
  display:none;
  background:#FCFAF4;
  border-bottom:1px solid var(--line);
}
.search-panel.open{display:block}
.search-form{
  display:flex;
  gap:12px;
  padding:16px 0;
}
.search-input{
  flex:1;
  height:46px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:0 16px;
  color:var(--ink);
  font-size:14px;
  transition:border-color .25s ease,background .25s ease;
}
.search-input:focus{outline:none;border-color:var(--green);background:#fff}
.search-input::placeholder{color:var(--muted)}
.page-hero{
  color:#fff;
  background:
    linear-gradient(100deg,rgba(16,42,36,.95) 8%,rgba(16,42,36,.78) 55%,rgba(16,42,36,.45) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.12);
  padding:86px 0 92px;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.88);
  background:rgba(255,255,255,.06);
}
.hero-title{
  font-size:52px;
  font-weight:800;
  line-height:1.18;
  margin:24px 0 18px;
  letter-spacing:-.01em;
  max-width:740px;
}
.hero-title .copper-text{color:var(--copper)}
.hero-desc{
  font-size:17px;
  line-height:1.9;
  color:rgba(255,255,255,.82);
  max-width:680px;
  margin:0 0 32px;
}
.hero-actions{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:rgba(255,255,255,.9);
  font-size:14px;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.35);
  padding-bottom:3px;
  transition:border-color .25s ease,color .25s ease;
}
.text-link:hover{border-color:#fff;color:#fff}
.section{
  padding:var(--space-section) 0;
}
.section-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-kicker{
  display:inline-block;
  color:var(--copper);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  margin-bottom:6px;
}
.section-title{
  font-size:34px;
  font-weight:800;
  line-height:1.3;
  color:var(--ink);
  margin:0;
}
.section-title.light{color:#fff}
.section-desc{
  max-width:620px;
  color:var(--muted);
  font-size:15px;
  margin:14px 0 0;
}
.section-desc.light{color:rgba(255,255,255,.62)}
.section-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--green);
  white-space:nowrap;
  padding-bottom:4px;
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,color .25s ease;
}
.section-link i{transition:transform .25s ease}
.section-link:hover{border-color:var(--copper);color:var(--copper-dark)}
.section-link:hover i{transform:translateX(4px)}
.focus-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.focus-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 22px;
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
  min-height:250px;
  display:flex;
  flex-direction:column;
}
.focus-card:hover{
  border-color:rgba(33,70,60,.3);
  box-shadow:var(--shadow);
  transform:translateY(-3px);
}
.focus-number{
  font-size:13px;
  font-weight:700;
  color:var(--copper);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.focus-icon{
  width:46px;
  height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(33,70,60,.08);
  color:var(--green);
  border-radius:10px;
  font-size:18px;
  margin-bottom:16px;
  transition:background .3s ease,color .3s ease;
}
.focus-card:hover .focus-icon{background:var(--green);color:#fff}
.focus-card h3{
  font-size:18px;
  font-weight:700;
  margin:0 0 10px;
  color:var(--ink);
  line-height:1.45;
}
.focus-card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
}
.focus-tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:auto;
  padding-top:16px;
}
.pill{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:12px;
  color:var(--muted);
  background:#fff;
}
.split-feature{
  background:var(--night);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  box-shadow:0 10px 26px rgba(16,42,36,.16);
}
.feature-media{
  position:relative;
  min-height:430px;
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
}
.media-label{
  position:absolute;
  top:22px;
  left:22px;
  background:rgba(16,42,36,.78);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  font-size:12px;
  padding:6px 12px;
  border-radius:999px;
  letter-spacing:.05em;
  backdrop-filter:blur(4px);
}
.feature-body{
  padding:48px 46px;
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.feature-intro{
  color:var(--copper);
  font-size:13px;
  font-weight:700;
  letter-spacing:.09em;
}
.feature-body h3{
  font-size:27px;
  font-weight:800;
  line-height:1.45;
  margin:12px 0 16px;
  letter-spacing:-.01em;
}
.feature-copy{
  color:rgba(255,255,255,.72);
  font-size:15px;
  line-height:1.9;
  margin-bottom:24px;
}
.check-list{
  display:grid;
  gap:12px;
  margin-bottom:30px;
}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  list-style:none;
  font-size:14px;
  color:rgba(255,255,255,.82);
}
.check-list i{
  color:var(--copper);
  margin-top:5px;
  font-size:13px;
}
.feature-actions{display:flex;flex-wrap:wrap;gap:10px}
.scenario-wrapper{
  border-top:1px solid var(--line);
}
.scenario-item{
  display:grid;
  grid-template-columns:70px minmax(0,1fr) minmax(0,1.2fr) 30px;
  gap:26px;
  align-items:center;
  padding:30px 0;
  border-bottom:1px solid var(--line);
  transition:padding-left .3s ease,background .3s ease;
}
.scenario-item:hover{
  padding-left:10px;
  background:rgba(255,255,255,.35);
}
.scenario-index{
  color:var(--copper);
  font-weight:700;
  font-size:13px;
  letter-spacing:.08em;
}
.scenario-item h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  margin:0;
}
.scenario-desc{
  color:var(--muted);
  font-size:14px;
  line-height:1.75;
}
.scenario-arrow{
  color:var(--copper);
  font-size:18px;
}
.faq-section{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:30px 44px;
}
.faq-item{
  border-bottom:1px solid var(--line);
  padding:8px 0 4px;
}
.faq-question{margin:0}
.faq-toggle{
  display:flex;
  width:100%;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  padding:14px 0;
  text-align:left;
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  background:transparent;
  transition:color .2s ease;
}
.faq-toggle:hover{color:var(--green)}
.faq-toggle-icon{
  color:var(--copper);
  font-size:22px;
  font-weight:300;
  line-height:1;
  flex-shrink:0;
  transition:transform .3s ease;
}
.faq-item.open .faq-toggle-icon{transform:rotate(135deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding-bottom:18px;
  color:var(--muted);
  font-size:14px;
  opacity:0;
  transform:translateY(-4px);
  transition:opacity .3s ease,transform .3s ease;
}
.faq-item.open .faq-answer-inner{
  opacity:1;
  transform:translateY(0);
}
.cta-section{
  padding:var(--space-section) 0;
}
.cta-panel{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:
    linear-gradient(100deg,rgba(16,42,36,.96) 20%,rgba(16,42,36,.7) 70%,rgba(16,42,36,.35)),
    url('/assets/images/backpic/back-2.webp') center/cover;
  color:#fff;
  padding:56px 60px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:46px;
  align-items:center;
}
.cta-title{
  font-size:30px;
  font-weight:800;
  line-height:1.4;
  margin:10px 0 16px;
}
.cta-copy{color:rgba(255,255,255,.75);font-size:15px;line-height:1.85}
.cta-form-box{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:26px;
}
.form-label{
  display:block;
  color:#fff;
  font-size:14px;
  font-weight:600;
  margin-bottom:12px;
}
.input-group{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}
.email-input{
  flex:1;
  min-width:190px;
  height:44px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  border-radius:6px;
  padding:0 14px;
  color:#fff;
  transition:border-color .25s ease,background .25s ease;
}
.email-input:focus{
  outline:none;
  background:rgba(255,255,255,.16);
  border-color:var(--copper);
}
.email-input::placeholder{color:rgba(255,255,255,.45)}
.form-note{
  margin-top:12px;
  font-size:12px;
  color:rgba(255,255,255,.46);
}
.form-msg{
  font-size:13px;
  color:rgba(255,255,255,.85);
  background:rgba(180,131,90,.2);
  border:1px solid rgba(180,131,90,.4);
  padding:8px 12px;
  border-radius:6px;
  display:none;
  margin-top:12px;
}
.form-msg.show{display:block}
footer{
  background:var(--night);
  color:#fff;
  padding:64px 0 20px;
}
.footer-inner{}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:44px;
  padding-bottom:32px;
}
.footer-brand-desc{
  color:rgba(255,255,255,.52);
  font-size:14px;
  line-height:1.85;
  margin-top:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  color:rgba(255,255,255,.56);
  font-size:14px;
}
.footer-links h3,.footer-contact h3{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin:0 0 8px;
}
.footer-links a{transition:color .25s ease}
.footer-links a:hover{color:#fff}
.footer-contact{
  color:rgba(255,255,255,.56);
  font-size:14px;
}
.footer-dash{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:14px;
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:22px 0 8px;
  color:rgba(255,255,255,.35);
  font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:#fff}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    transition-duration:.01ms!important;
  }
  html{scroll-behavior:auto}
}
@media(max-width:1100px){
  .focus-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .split-feature{grid-template-columns:1fr}
  .feature-media{min-height:300px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-panel{grid-template-columns:1fr;padding:44px}
  .hero-title{font-size:46px}
}
@media(max-width:860px){
  .section-title{font-size:28px}
  .faq-grid{grid-template-columns:1fr}
  .scenario-item{
    grid-template-columns:44px 1fr 24px;
    row-gap:8px;
  }
  .scenario-desc{grid-column:2/4}
  .header-flex{min-height:66px}
  .brand-name{font-size:18px}
}
@media(max-width:640px){
  .section{padding:var(--space-section-mobile) 0}
  .header-flex{min-height:64px}
  .brand-logo{width:38px;height:38px;font-size:19px}
  .brand-name{font-size:17px}
  .btn{padding:0 13px;height:40px}
  .page-hero{padding:58px 0 64px}
  .hero-title{font-size:35px;margin-top:18px}
  .hero-desc{font-size:15px}
  .container{width:min(100% - 32px,1280px)}
  .section-header{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:30px}
  .section-title{font-size:26px}
  .focus-grid{grid-template-columns:1fr}
  .grid-full-card{}
  .feature-body{padding:30px 22px}
  .feature-body h3{font-size:22px}
  .feature-actions .btn{width:100%}
  .scenario-item{grid-template-columns:36px 1fr;padding:22px 0}
  .scenario-desc{grid-column:2}
  .scenario-arrow{display:none}
  .cta-panel{padding:34px 22px}
  .cta-title{font-size:22px}
  .cta-form-box{padding:20px}
  .form-note{font-size:11px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-contact p{font-size:13px}
  .nav-inner{
    gap:6px;
    padding:10px 2px 12px;
  }
  .tab{
    font-size:13px;
    padding:7px 11px;
  }
}