/* roulang page: index */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --brand-primary-2:#12513F;
  --accent:#FF5A1F;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --success:#2F7D5B;
  --warn:#B4531B;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-num:"Inter","Manrope","PingFang SC",system-ui,-apple-system,Arial,sans-serif;

  --bs-primary:#0B3B31;
  --bs-primary-rgb:11,59,49;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B1F1D;
  --bs-border-color:#E4E1D9;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-border-radius-pill:999px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#0B3B31;
  --bs-link-hover-color:#FF5A1F;
  --bs-emphasis-color:#0F1A17;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container{padding:0 32px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-primary);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;z-index:2000;}
.skip-link:focus{left:0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);
  font-size:12px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}
.section{padding:56px 0;}
@media (min-width:1200px){.section{padding:96px 0;}}
.section-head{max-width:780px;margin-bottom:32px;}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--brand-ink);margin-top:14px;}
.section-desc{color:var(--muted);margin-top:14px;font-size:15px;}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-x svg{flex:0 0 auto;}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:#E64A12;color:#fff;transform:translateY(-1px);}
.btn-x--ghost{background:transparent;border-color:var(--line);color:var(--brand-ink);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-x--dark{background:var(--brand-primary);color:#fff;}
.btn-x--dark:hover{background:var(--brand-primary-2);color:#fff;transform:translateY(-1px);}
.btn-x--sm{padding:9px 18px;font-size:14px;}

.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.7;
}
.tag--line{background:transparent;border:1px solid var(--line);color:var(--muted);}

.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 8px 24px rgba(15,26,23,.04);}
.header-top-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:block;width:32px;height:32px;flex:0 0 32px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--brand-ink);letter-spacing:-.01em;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.1em;font-family:var(--font-num);}
.nav-search{position:relative;flex:1 1 auto;max-width:360px;margin-left:auto;}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none;}
.nav-search input{
  width:100%;height:40px;padding:0 16px 0 40px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:#fff;color:var(--text);font-size:14px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search input::placeholder{color:#9AA39F;}
.nav-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.12);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;color:var(--brand-ink);
}
.header-nav{background:rgba(255,255,255,.6);border-top:1px solid var(--line);}
.nav-scroll{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand-ink);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;}
.nav-pill.active:hover{color:#fff;}

/* ============ hero ============ */
.hero{padding:40px 0 0;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero h1{
  font-size:clamp(30px,5vw,56px);font-weight:800;line-height:1.12;
  letter-spacing:-.02em;color:var(--brand-ink);margin-top:18px;
}
.hero-sub{font-size:17px;color:var(--muted);margin-top:20px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;}
.hero-visual{
  position:relative;border-radius:var(--radius-card);
  aspect-ratio:4/3;overflow:hidden;background:var(--brand-primary);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-card);
  box-shadow:inset 0 0 0 1px rgba(15,26,23,.16);pointer-events:none;
}
.hero-note{
  position:absolute;left:18px;bottom:18px;right:18px;
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:var(--radius-card);
  background:rgba(15,26,23,.78);color:#fff;
  font-size:13px;line-height:1.6;
  backdrop-filter:blur(4px);
}
.hero-note strong{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--accent);letter-spacing:-.01em;line-height:1;}

.hero-strip{margin-top:48px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.72);}
.hero-strip-inner{display:flex;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.hero-strip-inner::-webkit-scrollbar{display:none;}
.strip-item{
  flex:1 0 auto;min-width:196px;
  display:flex;align-items:center;gap:12px;
  padding:18px 20px;border-right:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--brand-ink);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.strip-item:last-child{border-right:0;}
.strip-item:hover{background:var(--accent-soft);color:var(--accent);}
.strip-mark{width:8px;height:8px;border-radius:2px;background:var(--accent);flex:0 0 8px;transform:rotate(45deg);}
.strip-item .arrow{margin-left:auto;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);}
.strip-item:hover .arrow{color:var(--accent);transform:translateX(3px);}

/* ============ quick entries ============ */
.quick-grid{display:grid;grid-template-columns:220px 1fr;gap:48px;align-items:start;}
.quick-index{position:sticky;top:132px;}
.quick-index .idx{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:600;}
.quick-index strong{display:block;font-size:24px;font-weight:700;line-height:1.4;color:var(--brand-ink);margin-top:10px;}
.quick-index p{font-size:14px;color:var(--muted);margin-top:12px;}
.quick-row{
  display:flex;align-items:flex-start;gap:20px;
  padding:24px 8px;border-bottom:1px solid var(--line);
  transition:transform .2s var(--ease);
}
.quick-row:first-child{border-top:1px solid var(--line);}
.quick-row:hover{transform:translateX(4px);}
.quick-row .num{
  font-family:var(--font-num);font-size:14px;font-weight:700;
  letter-spacing:.08em;color:var(--accent);width:42px;flex:0 0 42px;line-height:1.8;
}
.quick-row h3{font-size:18px;font-weight:700;color:var(--brand-ink);transition:color .2s var(--ease);}
.quick-row:hover h3{color:var(--accent);}
.quick-row p{font-size:14px;color:var(--muted);margin-top:6px;}
.quick-row .arrow{margin-left:auto;flex:0 0 auto;color:var(--muted);align-self:center;transition:transform .2s var(--ease),color .2s var(--ease);}
.quick-row:hover .arrow{color:var(--accent);transform:translateX(3px);}

/* ============ compare table ============ */
.compare-shell{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;}
.compare-table thead th{
  position:sticky;top:112px;z-index:3;
  background:var(--brand-primary);color:#fff;
  font-family:var(--font-num);font-size:13px;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;
}
.compare-table thead th:first-child{color:rgba(255,255,255,.72);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover{background:#FCFAF6;}
.compare-table td:first-child{font-weight:600;color:var(--brand-ink);}
.compare-table .cell{display:inline-flex;align-items:center;gap:8px;color:var(--text);}
.ic-yes{color:var(--success);}
.ic-no{color:#B9BFBC;}
.compare-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:20px;font-size:13px;color:var(--muted);}

/* ============ level steps ============ */
.level-steps{border-top:1px solid var(--line);}
.level-step{
  display:grid;grid-template-columns:150px 1fr;gap:36px;
  padding:36px 0;border-bottom:1px solid var(--line);
}
.level-num{
  font-family:var(--font-num);font-size:clamp(44px,7vw,76px);font-weight:800;
  line-height:1;letter-spacing:-.04em;color:var(--accent);
}
.level-body h3{font-size:22px;font-weight:700;color:var(--brand-ink);}
.level-body>p{color:var(--muted);margin-top:10px;max-width:720px;}
.level-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.level-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:13px;color:var(--muted);background:var(--surface);
}

/* ============ preview grid ============ */
.locked-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.preview-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.preview-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.preview-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEDE7;}
.preview-media img{width:100%;height:100%;object-fit:cover;}
.preview-mask{
  position:absolute;left:0;right:0;bottom:0;height:70%;
  background:linear-gradient(to top,rgba(255,255,255,.94) 8%,rgba(255,255,255,0));
  pointer-events:none;
}
.lock-badge{
  position:absolute;top:12px;right:12px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(15,26,23,.82);color:#fff;font-size:12px;font-weight:600;
}
.preview-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.preview-body h3{font-size:17px;font-weight:700;color:var(--brand-ink);line-height:1.5;}
.preview-body p{font-size:14px;color:var(--muted);}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  padding:24px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.news-card .head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-card h3{
  font-size:17px;font-weight:700;line-height:1.5;color:var(--brand-ink);margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-card:hover h3{color:var(--accent);}
.news-card p{
  font-size:14px;color:var(--muted);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.news-meta .more{margin-left:auto;color:var(--accent);font-weight:600;}
.empty-state{
  padding:52px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);
}
.empty-state .glyph{
  width:44px;height:44px;margin:0 auto 16px;border-radius:10px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.empty-state p{color:var(--muted);font-size:15px;}

/* ============ faq ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--brand-ink);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q .sign{
  position:relative;flex:0 0 22px;width:22px;height:22px;margin-top:4px;
  color:var(--brand-primary);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
}
.faq-q .sign::before{width:16px;height:2px;transform:translate(-50%,-50%);}
.faq-q .sign::after{width:2px;height:16px;transform:translate(-50%,-50%);transition:transform .22s var(--ease);}
.faq-item.open .faq-q .sign{transform:rotate(90deg);color:var(--accent);}
.faq-item.open .faq-q .sign::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:820px;}

/* ============ cta ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-ink);border-radius:16px;
  padding:52px 40px;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;border:1px solid rgba(255,90,31,.32);pointer-events:none;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:#fff;}
.cta-band p{color:rgba(255,255,255,.72);margin-top:16px;max-width:640px;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cta-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.cta-badge{
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.88);font-size:13px;
}

/* ============ footer ============ */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.7);margin-top:56px;padding:64px 0 0;}
@media (min-width:1200px){.site-footer{margin-top:96px;}}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.1);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700;}
.footer-col h4{
  font-family:var(--font-num);font-size:12px;font-weight:600;letter-spacing:.13em;
  text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:18px;
}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ responsive ============ */
@media (max-width:1199px){
  .locked-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-visual{max-width:620px;}
  .quick-grid{grid-template-columns:1fr;gap:24px;}
  .quick-index{position:static;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:40px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:nth-child(odd){border-left:0;padding-left:0;}
  .footer-col:nth-child(even){padding-right:0;}
  .footer-col:nth-child(n+3){border-top:1px solid rgba(255,255,255,.1);padding-top:32px;}
  .compare-table thead th{top:112px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .nav-search{display:none;}
  .header-top-inner{height:60px;}
  .cta-band{padding:40px 24px;}
  .level-step{grid-template-columns:1fr;gap:12px;padding:28px 0;}
  .compare-table thead{display:none;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tr{
    border:1px solid var(--line);border-radius:var(--radius-card);
    margin:0 0 16px;padding:16px 18px;background:var(--surface);
  }
  .compare-table td{border:0;padding:8px 0;display:flex;justify-content:space-between;gap:14px;font-size:14px;}
  .compare-table td::before{
    content:attr(data-label);color:var(--muted);font-size:13px;flex:0 0 auto;
  }
  .compare-table td:first-child{
    font-size:16px;border-bottom:1px solid var(--line);
    margin-bottom:8px;padding-bottom:12px;display:block;
  }
  .compare-table td:first-child::before{display:none;}
}
@media (max-width:575.98px){
  .brand-text em{display:none;}
  .brand-text strong{font-size:15px;}
  .nav-toggle{display:inline-flex;}
  .header-nav{display:none;}
  .site-header.nav-open .header-nav{display:block;}
  .header-nav .nav-scroll{
    flex-direction:column;align-items:stretch;height:auto;gap:8px;
    padding:12px 0 16px;overflow:visible;
  }
  .header-nav .nav-pill{text-align:left;}
  .locked-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{padding:24px 0;border-left:0;border-top:1px solid rgba(255,255,255,.1);}
  .footer-col:first-child{padding-top:0;border-top:0;}
  .hero-cta .btn-x{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --brand-primary-600:#0E4A3D;
  --accent:#FF5A1F;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --ok:#2F7D5B;
  --warn:#B4531B;

  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:200ms;
  --container-w:1200px;

  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius-card);
  --bs-primary:#0B3B31;
  --bs-primary-rgb:11,59,49;
  --bs-link-color:#0B3B31;
  --bs-link-hover-color:#FF5A1F;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}

.container{max-width:var(--container-w);margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:992px){ .container{padding:0 32px;} }

.num,.eyebrow,.tag,.pill-label{
  font-family:Inter,Manrope,"Helvetica Neue",Arial,var(--bs-font-sans-serif);
  text-transform:uppercase;
  letter-spacing:0.12em;
  font-weight:600;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 8px 24px rgba(11,59,49,.05);}
.header-top-inner{
  min-height:64px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;line-height:0;border-radius:9px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--brand-ink);letter-spacing:-0.01em;}
.brand-text em{
  font-style:normal;font-size:11px;color:var(--muted);
  letter-spacing:.10em;text-transform:uppercase;font-weight:600;
}
.nav-search{
  flex:1 1 auto;max-width:420px;margin-left:auto;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:8px 16px;color:var(--muted);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.14);}
.nav-search input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:#9AA19E;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search + .header-actions{margin-left:0;}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 20px;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-x:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:#E84D14;color:#fff;transform:translateY(-1px);}
.btn-x--dark{background:var(--brand-primary);color:#fff;}
.btn-x--dark:hover{background:var(--brand-primary-600);color:#fff;transform:translateY(-1px);}
.btn-x--ghost{background:transparent;color:var(--brand-primary);border-color:var(--line);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
.btn-x--sm{padding:9px 16px;font-size:14px;}
.btn-x--lg{padding:15px 28px;font-size:16px;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--radius-btn);
  background:var(--surface);border:1px solid var(--line);color:var(--brand-primary);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

.header-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.5);}
.nav-scroll{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;scrollbar-width:none;
  scroll-snap-type:x proximity;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:32px;padding:0 16px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--surface);color:var(--brand-primary);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;}
.nav-pill.active:hover{background:var(--brand-primary);color:#fff;}

/* ---------- page hero ---------- */
.page-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:40px 0 44px;
}
.crumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#C4C0B6;}
.crumb .current{color:var(--brand-ink);font-weight:600;}

.hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;}
@media (min-width:768px){ .hero-grid{grid-template-columns:1.15fr .85fr;gap:40px;} }
.eyebrow{
  display:inline-block;font-size:12px;color:var(--accent);
  background:var(--accent-soft);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.page-hero h1{
  font-size:clamp(28px,4.4vw,44px);line-height:1.15;font-weight:800;letter-spacing:-0.02em;
  margin-bottom:16px;
}
.page-hero h1 span{color:var(--accent);}
.hero-sub{font-size:16px;color:var(--muted);max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-figure{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:4/3;background:var(--surface);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{content:"";position:absolute;inset:0;border:1px solid rgba(15,26,23,.10);border-radius:var(--radius-card);pointer-events:none;}

/* ---------- quick facts ---------- */
.facts{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;margin-top:36px;
}
@media (min-width:768px){ .facts{grid-template-columns:repeat(4,1fr);} }
.fact{background:var(--surface);padding:20px 22px;}
.fact b{display:block;font-size:26px;font-weight:800;color:var(--brand-primary);letter-spacing:-0.02em;line-height:1.2;}
.fact span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- section base ---------- */
.section{padding:56px 0;}
@media (min-width:1200px){ .section{padding:88px 0;} }
.section-head{max-width:70ch;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.25;margin-bottom:12px;}
.section-head p{color:var(--muted);}

/* ---------- step layout with sticky toc ---------- */
.step-wrap{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:992px){ .step-wrap{grid-template-columns:250px 1fr;gap:56px;align-items:start;} }
.toc{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 18px;
}
@media (min-width:992px){ .toc{position:sticky;top:132px;} }
.toc h3{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:14px;}
.toc ol{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:var(--radius-btn);
  font-size:14px;color:var(--text);border-left:2px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.toc a .n{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.06em;}
.toc a:hover{background:var(--accent-soft);color:var(--brand-primary);}
.toc a.is-active{background:var(--accent-soft);border-left-color:var(--accent);color:var(--brand-primary);font-weight:600;}

.steps{display:flex;flex-direction:column;gap:24px;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;scroll-margin-top:132px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
@media (min-width:768px){ .step{padding:32px 34px;} }
.step-head{display:flex;gap:18px;align-items:flex-start;}
.step-num{
  flex:0 0 auto;font-size:34px;font-weight:800;line-height:1;
  color:var(--accent);letter-spacing:-0.03em;
  font-family:Inter,Manrope,Arial,sans-serif;
}
@media (min-width:768px){ .step-num{font-size:42px;} }
.step-head h3{font-size:20px;margin-bottom:6px;}
.step-kicker{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.step p{margin-top:16px;color:#39413E;}
.step-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.step-list li{
  position:relative;padding-left:20px;font-size:15px;color:#39413E;
}
.step-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
.note{
  margin-top:20px;background:var(--accent-soft);border-left:3px solid var(--accent);
  border-radius:0 var(--radius-btn) var(--radius-btn) 0;
  padding:14px 18px;font-size:14px;color:#7A3413;
}

/* ---------- entry cards (2 columns staggered) ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:768px){ .entry-grid{grid-template-columns:1.2fr .8fr;} }
.entry-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.entry-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-hover);}
.entry-media{aspect-ratio:16/9;overflow:hidden;background:#EFEDE7;}
.entry-media img{width:100%;height:100%;object-fit:cover;}
.entry-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;}
.entry-card--tall .entry-media{aspect-ratio:16/10;}
.entry-body h3{font-size:19px;}
.entry-body p{font-size:15px;color:var(--muted);}
.entry-meta{display:flex;align-items:center;gap:10px;margin-top:auto;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  background:var(--accent-soft);color:var(--accent);
  border-radius:var(--radius-pill);font-size:11px;
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-primary);}
.link-arrow svg{transition:transform var(--dur) var(--ease);}
.entry-card:hover .link-arrow{color:var(--accent);}
.entry-card:hover .link-arrow svg{transform:translateX(4px);}

/* ---------- faq ---------- */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;}
.faq details{border-top:1px solid var(--line);}
.faq details:first-child{border-top:0;}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--brand-ink);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--accent);background:#FCFBF8;}
.faq summary .ico{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform var(--dur) var(--ease);
}
.faq summary .ico::before,.faq summary .ico::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:background var(--dur) var(--ease);
}
.faq summary .ico::before{left:2px;right:2px;top:10px;height:2px;}
.faq summary .ico::after{top:2px;bottom:2px;left:10px;width:2px;}
.faq details[open] summary{color:var(--accent);}
.faq details[open] summary .ico::after{transform:scaleY(0);}
.faq .answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:#39413E;}

/* ---------- cta ---------- */
.cta{
  background:var(--brand-ink);border-radius:var(--radius-card);
  padding:40px 26px;color:#fff;
}
@media (min-width:768px){ .cta{padding:56px 56px;} }
.cta h2{color:#fff;font-size:clamp(22px,3vw,32px);line-height:1.25;margin-bottom:14px;}
.cta p{color:rgba(255,255,255,.72);max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta .btn-x--ghost{color:#fff;border-color:rgba(255,255,255,.28);}
.cta .btn-x--ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.5);}
.cta-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);}
.cta-badges span{
  font-size:13px;color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-pill);
  padding:6px 14px;
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.72);margin-top:0;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0;} }
@media (min-width:768px){
  .footer-col{padding:0 26px;border-left:1px solid rgba(255,255,255,.10);}
  .footer-col:first-child{padding-left:0;border-left:0;}
  .footer-col:last-child{padding-right:0;}
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-col h4{
  color:#fff;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:16px;font-family:Inter,Manrope,Arial,sans-serif;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 240ms var(--ease),transform 240ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .site-header .header-nav{display:none;}
  .site-header .header-nav.is-open{display:block;}
  .nav-scroll{height:auto;flex-direction:column;align-items:stretch;padding:12px 20px 16px;}
  .nav-pill{height:38px;justify-content:center;border-radius:var(--radius-btn);}
}
@media (max-width:575px){
  .header-top-inner{gap:12px;}
  .brand-text strong{font-size:14px;}
  .brand-text em{display:none;}
  .btn-x--lg{width:100%;}
  .cta-actions .btn-x{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --brand-primary-soft:#12503F;
  --accent:#FF5A1F;
  --accent-hover:#E64A10;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --ok:#2F7D5B;
  --warn:#B4531B;
  --radius-card:10px;
  --radius-btn:8px;
  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","Manrope","PingFang SC",system-ui,sans-serif;

  --bs-primary:#0B3B31;
  --bs-primary-rgb:11,59,49;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B1F1D;
  --bs-border-color:#E4E1D9;
  --bs-border-radius:10px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#0B3B31;
  --bs-link-hover-color:#FF5A1F;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.btn:focus,.btn:active:focus,.form-control:focus,.accordion-button:focus{box-shadow:none;outline:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container{padding:0 32px;}}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);}
.btn-x--ghost{background:transparent;border-color:var(--line);color:var(--brand-primary);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
.btn-x--light{background:#fff;color:var(--brand-primary);}
.btn-x--light:hover{background:var(--accent-soft);color:var(--accent);}
.btn-x--sm{padding:9px 16px;font-size:14px;}
.btn-x:active{transform:translateY(0);}

/* ---------- 双层导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 6px 20px rgba(15,26,23,.05);}
.header-top-inner{
  display:flex;align-items:center;gap:20px;min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--brand-ink);}
.brand:hover{color:var(--brand-ink);}
.brand-mark{display:inline-flex;flex-shrink:0;line-height:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.08em;}
.nav-search{
  flex:1;display:flex;align-items:center;gap:8px;
  max-width:420px;margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 16px;color:var(--muted);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,90,31,.10);}
.nav-search input{
  flex:1;border:0;outline:none;background:transparent;
  font-size:14px;color:var(--text);font-family:inherit;
}
.nav-search input::placeholder{color:#9AA29F;}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--line);color:var(--brand-primary);cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.header-nav{border-top:1px solid var(--line);}
.nav-scroll{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;overflow-y:hidden;
  scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  display:inline-flex;align-items:center;flex-shrink:0;
  padding:7px 15px;border-radius:999px;border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--brand-primary);
  background:transparent;scroll-snap-align:start;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);background:#fff;}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;}
.nav-pill.active:hover{color:#fff;background:var(--brand-primary-soft);}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:26px 0 38px;}
.breadcrumb-x{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb-x a{color:var(--muted);}
.breadcrumb-x a:hover{color:var(--accent);}
.breadcrumb-x .sep{color:#C3C7C4;}
.breadcrumb-x .current{color:var(--muted);}
.article-head{max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:.06em;margin-bottom:16px;
}
.article-title{
  font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.22;letter-spacing:-.02em;
  color:var(--brand-ink);margin-bottom:16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
}
.article-meta .dot{color:#C3C7C4;}
.article-meta .pill{
  padding:3px 10px;border-radius:999px;border:1px solid var(--line);
  background:#fff;font-size:12px;font-weight:600;color:var(--brand-primary);
}

/* ---------- 正文 ---------- */
.article-main{padding:48px 0 64px;}
@media (min-width:768px){.article-main{padding:64px 0 88px;}}
.article-col{max-width:760px;margin:0 auto;}
.article-body{
  font-size:16.5px;line-height:1.85;color:var(--text);
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;font-size:clamp(20px,2.6vw,26px);font-weight:700;line-height:1.35;
  margin:2.2em 0 .9em;padding-left:14px;scroll-margin-top:130px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;
  background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:18px;font-weight:700;margin:1.8em 0 .7em;scroll-margin-top:130px;}
.article-body h4{font-size:16.5px;font-weight:700;margin:1.4em 0 .5em;}
.article-body a{
  color:var(--brand-primary);font-weight:600;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .2s var(--ease),color .18s var(--ease);
}
.article-body a:hover{color:var(--accent);background-size:100% 1px;}
.article-body strong{font-weight:700;color:var(--brand-ink);}
.article-body img{width:100%;height:auto;border-radius:10px;margin:1.8em 0;border:1px solid var(--line);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--accent-soft);
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:#3A423F;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--accent);
}
.article-body ol{counter-reset:artol;}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:.6em;counter-increment:artol;}
.article-body ol li::before{
  content:counter(artol);position:absolute;left:0;top:.28em;
  width:18px;height:18px;border-radius:50%;background:var(--accent-soft);
  color:var(--accent);font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);
}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:#FBF9F5;font-weight:700;color:var(--brand-ink);font-size:13.5px;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body code{
  background:#F1EFE9;border-radius:5px;padding:2px 6px;font-size:14px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;color:#2C3833;
}
.article-body pre{
  background:var(--brand-ink);color:#E8EDEA;padding:18px 20px;border-radius:10px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.6em 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}

/* ---------- 文末操作 ---------- */
.article-foot{
  max-width:760px;margin:40px auto 0;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.article-foot .note{font-size:13.5px;color:var(--muted);max-width:460px;}
.article-empty{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
}
.article-empty .ico{
  width:52px;height:52px;border-radius:14px;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;
}
.article-empty h2{font-size:20px;margin-bottom:8px;}
.article-empty p{color:var(--muted);font-size:14.5px;margin-bottom:20px;}

/* ---------- 相关推荐 ---------- */
.relate-sec{padding:0 0 64px;}
@media (min-width:768px){.relate-sec{padding:0 0 88px;}}
.sec-head{max-width:720px;margin-bottom:28px;}
.sec-head .kicker{
  display:inline-block;font-family:var(--font-num);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:10px;
}
.sec-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;margin-bottom:10px;}
.sec-head p{color:var(--muted);font-size:15px;}
.relate-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){
  .relate-grid{grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
  .relate-grid .relate-card:first-child{grid-row:span 1;}
}
.relate-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.relate-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.relate-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEAE3;}
.relate-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.relate-card:hover .thumb img{transform:scale(1.03);}
.relate-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.relate-card .tagx{
  align-self:flex-start;padding:3px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.relate-card h3{font-size:17px;font-weight:700;line-height:1.45;}
.relate-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.relate-card .more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand-primary);display:inline-flex;align-items:center;gap:6px;}
.relate-card:hover .more{color:var(--accent);}
.relate-card .more i{font-size:12px;transition:transform .2s var(--ease);}
.relate-card:hover .more i{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-primary);color:#fff;border-radius:14px;
  padding:40px 28px;margin:0 auto 64px;max-width:1200px;
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
}
@media (min-width:992px){
  .cta-band{grid-template-columns:1.4fr 1fr;padding:52px 48px;margin-bottom:88px;}
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:700;margin-bottom:12px;line-height:1.3;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:560px;}
.cta-band .cta-side{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
@media (min-width:992px){.cta-band .cta-side{align-items:flex-end;}}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;}
.cta-tags span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  font-size:12.5px;color:rgba(255,255,255,.86);
}

/* ---------- FAQ ---------- */
.faq-sec{padding:0 0 72px;}
.faq-wrap{max-width:860px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;font-size:16.5px;font-weight:700;color:var(--brand-ink);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary .ic{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--brand-primary);font-size:14px;line-height:1;
  transition:transform .22s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item[open] summary .ic{transform:rotate(90deg);color:var(--accent);border-color:var(--accent);}
.faq-a{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:720px;}
.faq-a p{margin-bottom:.7em;}
.faq-a p:last-child{margin-bottom:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:576px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:0;}}
@media (min-width:992px){
  .footer-col{padding:0 26px;}
  .footer-col:first-child{padding-left:0;}
  .footer-col:last-child{padding-right:0;}
  .footer-col+.footer-col{border-left:1px solid rgba(255,255,255,.12);}
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:16px;font-family:var(--font-num);
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.in{opacity:1;transform:none;}

@media (max-width:991.98px){
  .nav-search{max-width:none;}
}
@media (max-width:575.98px){
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .header-top-inner{gap:12px;}
  .brand-text strong{font-size:14.5px;}
  .brand-text em{display:none;}
  .header-nav{display:none;}
  .site-header.nav-open .header-nav{display:block;border-top:1px solid var(--line);}
  .site-header.nav-open .nav-scroll{
    flex-direction:column;align-items:stretch;height:auto;
    overflow:visible;padding:10px 0 14px;gap:6px;
  }
  .site-header.nav-open .nav-pill{width:100%;justify-content:flex-start;padding:10px 14px;border-radius:8px;}
  .article-hero{padding:20px 0 28px;}
  .cta-band{padding:32px 20px;border-radius:12px;margin-bottom:48px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --brand-primary-600:#0E4A3D;
  --accent:#FF5A1F;
  --accent-600:#E64A12;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F2EFE8;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --success:#2F7D5B;
  --warn:#B4531B;
  --r-card:10px;
  --r-btn:8px;
  --r-pill:999px;
  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:200ms;

  --bs-primary:#0B3B31;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B1F1D;
  --bs-border-color:#E4E1D9;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-link-color:#0B3B31;
  --bs-link-hover-color:#FF5A1F;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--brand-ink);margin:0;font-weight:700;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;box-shadow:none !important;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container{padding:0 32px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-btn) 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,240,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 6px 18px rgba(15,26,23,.05);}
.header-top{border-bottom:1px solid var(--line);}
.header-top-inner{
  min-height:64px;display:flex;align-items:center;gap:18px;
  padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--brand-ink);letter-spacing:-.01em;}
.brand-text em{
  font-style:normal;font-size:11px;color:var(--muted);
  letter-spacing:.14em;text-transform:uppercase;font-weight:600;
}
.nav-search{
  flex:1 1 auto;display:flex;align-items:center;gap:8px;max-width:420px;
  background:var(--surface-2);border:1px solid transparent;border-radius:var(--r-pill);
  padding:8px 16px;color:var(--muted);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);background:var(--surface);}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:#9AA19D;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-weight:700;font-size:15px;line-height:1;
  padding:13px 22px;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-x--sm{padding:10px 18px;font-size:14px;}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);}
.btn-x--dark{background:var(--brand-primary);color:#fff;}
.btn-x--dark:hover{background:var(--brand-primary-600);color:#fff;transform:translateY(-1px);}
.btn-x--ghost{background:transparent;color:var(--brand-primary);border-color:var(--line);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-x--light{background:#fff;color:var(--brand-primary);}
.btn-x--light:hover{background:var(--accent-soft);color:var(--accent);}
.btn-x--onDark{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-x--onDark:hover{border-color:var(--accent);color:var(--accent);}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);color:var(--brand-primary);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

.header-nav{background:rgba(247,245,240,.92);}
.nav-scroll{
  display:flex;align-items:center;gap:10px;
  min-height:48px;overflow-x:auto;
  scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;
  font-size:14px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:all var(--dur) var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;}

/* ============ HERO ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%, rgba(255,90,31,.10), rgba(255,90,31,0) 68%);
  pointer-events:none;
}
.page-hero-inner{
  display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;
  padding:64px 0 56px;position:relative;
}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb span{color:#A9AFA9;margin:0 6px;}
.crumb b{font-weight:600;color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:var(--accent);
  border-radius:var(--r-pill);padding:5px 14px;
  font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.14;letter-spacing:-.02em;font-weight:800;
  margin-bottom:16px;
}
.page-hero .lead{
  font-size:16px;color:var(--muted);max-width:560px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  background:var(--accent-soft);color:var(--accent);
  border-radius:var(--r-pill);padding:4px 12px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.tag--plain{background:var(--surface-2);color:var(--muted);}
.hero-figure{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:4/3;background:var(--surface-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(15,26,23,.72);color:#fff;
  border-radius:var(--r-btn);padding:10px 14px;font-size:13px;line-height:1.6;
}
.kpi-strip{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.7);
}
.kpi-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.kpi{padding:22px 24px;border-right:1px solid var(--line);}
.kpi:last-child{border-right:0;}
.kpi b{
  display:block;font-size:clamp(22px,2.4vw,30px);font-weight:800;color:var(--brand-primary);
  letter-spacing:-.02em;line-height:1.2;
}
.kpi span{font-size:13px;color:var(--muted);}

/* ============ SECTIONS ============ */
.section{padding:56px 0;}
@media (min-width:1200px){.section{padding:88px 0;}}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head .kicker{
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  display:block;margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,3vw,34px);line-height:1.25;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;}
[id]{scroll-margin-top:140px;}

/* ============ LAYOUT: TOC + CONTENT ============ */
.split{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;align-items:start;
}
.toc{
  position:sticky;top:136px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;
}
.toc h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;}
.toc ol{counter-reset:toc;}
.toc li{counter-increment:toc;border-bottom:1px solid var(--line);}
.toc li:last-child{border-bottom:0;}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:10px 0;font-size:14px;font-weight:600;color:var(--text);
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);
  font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.08em;
}
.toc a:hover{color:var(--accent);}
.toc-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ============ MATRIX ============ */
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;margin-bottom:26px;
}
.panel:last-child{margin-bottom:0;}
.panel > h3{font-size:20px;margin-bottom:10px;}
.panel > .hint{font-size:14px;color:var(--muted);margin-bottom:20px;}
.matrix-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);}
table.matrix{width:100%;border-collapse:separate;border-spacing:0;min-width:640px;font-size:15px;background:var(--surface);}
table.matrix th,table.matrix td{
  padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;
}
table.matrix thead th{
  position:sticky;top:0;z-index:2;background:var(--surface-2);
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand-ink);
}
table.matrix thead th:first-child{color:var(--muted);}
table.matrix tbody tr td:first-child{font-weight:600;color:var(--text);width:26%;}
table.matrix tbody tr:hover{background:#FBFAF7;}
table.matrix tbody tr:last-child td{border-bottom:0;}
.tier-name{display:block;font-weight:800;color:var(--brand-primary);font-size:14px;}
.tier-sub{display:block;font-size:12px;color:var(--muted);font-weight:500;letter-spacing:.04em;}
.mark{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text);}
.mark--yes svg{color:var(--success);}
.mark--no{color:#A9AFA9;}
.mark--no svg{color:#C9CDC8;}
.mark small{display:block;color:var(--muted);font-size:12px;}

/* ============ TIER TIMELINE ============ */
.timeline{display:flex;flex-direction:column;gap:0;}
.tl-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:24px;
  padding:26px 0;border-top:1px solid var(--line);
}
.tl-item:first-child{border-top:0;padding-top:4px;}
.tl-num{
  font-size:44px;font-weight:800;line-height:1;color:var(--accent);
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.tl-body h4{font-size:18px;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:15px;margin-bottom:10px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;}
.tl-meta span{
  font-size:12px;font-weight:600;color:var(--brand-primary);
  background:var(--surface-2);border-radius:var(--r-pill);padding:4px 12px;
}

/* ============ STEPS ============ */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.step{
  counter-increment:step;position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 22px 24px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.step::before{
  content:counter(step,decimal-leading-zero);
  display:block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:10px;
}
.step h4{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}

/* ============ SCENE CARDS (staggered 2 col) ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.scene-grid > .scene:nth-child(2){margin-top:34px;}
.scene-grid > .scene:nth-child(3){margin-top:-10px;}
.scene{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.scene:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.scene-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.scene-thumb img{width:100%;height:100%;object-fit:cover;}
.scene-body{padding:20px 22px 24px;}
.scene-body h4{font-size:17px;margin-bottom:8px;}
.scene-body p{font-size:14px;color:var(--muted);}

/* ============ ENTRY CARDS ============ */
.entry-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch;}
.entry{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  border-radius:var(--r-card);padding:28px 26px;border:1px solid var(--line);
  background:var(--surface);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.entry:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.entry--dark{
  background:var(--brand-primary);border-color:rgba(255,255,255,.14);color:#fff;
}
.entry--dark h4{color:#fff;}
.entry--dark p{color:rgba(255,255,255,.78);}
.entry h4{font-size:19px;margin-bottom:8px;}
.entry p{font-size:14px;color:var(--muted);}
.entry-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--accent);
}
.entry--dark .entry-arrow{color:#FFB694;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 4px;font-size:16px;font-weight:700;color:var(--brand-ink);cursor:pointer;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q .fx{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:4px;
  transition:transform var(--dur) var(--ease);
}
.faq-q .fx::before,.faq-q .fx::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-q .fx::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .fx::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-q{color:var(--accent);}
.faq-item.open .faq-q .fx{transform:rotate(90deg);}
.faq-a{display:none;padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:840px;}
.faq-item.open .faq-a{display:block;}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-ink);color:#fff;border-radius:14px;
  padding:44px 36px;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr .9fr;gap:32px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.28),rgba(255,90,31,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,32px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.75);font-size:15px;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:1;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-tags span{
  border:1px solid rgba(255,255,255,.2);border-radius:var(--r-pill);
  padding:5px 14px;font-size:12px;font-weight:600;letter-spacing:.06em;color:rgba(255,255,255,.85);
}

/* ============ FOOTER ============ */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.72);margin-top:56px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:0;}
.footer-col{padding:0 26px;border-left:1px solid rgba(255,255,255,.08);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800;}
.footer-col p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-col h4{
  color:#fff;font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px;font-weight:700;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 240ms var(--ease),transform 240ms var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .split{grid-template-columns:220px minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:32px;}
  .footer-col:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:991px){
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding:44px 0 40px;}
  .hero-figure{max-width:640px;aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;}
  .toc{position:static;top:auto;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .kpi{border-bottom:1px solid var(--line);}
  .kpi:nth-child(2n){border-right:0;}
  .kpi:nth-last-child(-n+2){border-bottom:0;}
  .cta-band{grid-template-columns:1fr;padding:36px 26px;}
  .cta-actions{justify-content:flex-start;}
  .entry-grid{grid-template-columns:1fr;}
  .scene-grid > .scene:nth-child(2),
  .scene-grid > .scene:nth-child(3){margin-top:0;}
}
@media (max-width:767px){
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-nav{display:none;}
  .header-nav.is-open{display:block;}
  .nav-scroll{flex-direction:column;align-items:stretch;padding-bottom:14px;min-height:0;}
  .nav-pill{text-align:center;padding:10px 14px;}
  .scene-grid,.steps{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:1fr;gap:10px;}
  .tl-num{font-size:36px;}
  .panel{padding:20px 18px;}

  .matrix-wrap{border:0;overflow:visible;}
  table.matrix{min-width:0;}
  table.matrix thead{display:none;}
  table.matrix tbody tr{
    display:block;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);margin-bottom:14px;padding:6px 16px;
  }
  table.matrix tbody tr:hover{background:var(--surface);}
  table.matrix tbody td{
    display:flex;justify-content:space-between;gap:16px;align-items:center;
    padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
  }
  table.matrix tbody td:last-child{border-bottom:0;}
  table.matrix tbody td::before{
    content:attr(data-label);font-size:12px;font-weight:700;color:var(--muted);
    letter-spacing:.04em;flex:0 0 auto;
  }
  table.matrix tbody td[data-label="权益项"]{
    display:block;font-size:15px;font-weight:800;color:var(--brand-primary);
    padding-top:14px;padding-bottom:4px;border-bottom:1px solid var(--line);
  }
  table.matrix tbody td[data-label="权益项"]::before{content:none;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .kpi-grid{grid-template-columns:1fr;}
  .kpi{border-right:0;}
  .kpi:last-child{border-bottom:0;}
  .hero-actions .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{border-left:0;padding:0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --accent:#FF5A1F;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --success:#2F7D5B;
  --warn:#B4531B;
  --r-card:10px;
  --r-btn:8px;
  --r-pill:999px;
  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-latin:"Inter","Manrope","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#0B3B31;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B1F1D;
  --bs-border-color:#E4E1D9;
  --bs-border-radius:10px;
  --bs-border-radius-sm:8px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#0B3B31;
  --bs-link-hover-color:#FF5A1F;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);}
p{margin:0 0 1.1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:992px){
  .container{padding-left:32px;padding-right:32px;}
}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14px;font-weight:600;line-height:1.2;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:#EA4C12;color:#fff;transform:translateY(-1px);}
.btn-x--ghost{background:transparent;border-color:rgba(11,59,49,.35);color:var(--brand-primary);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-x--dark{background:var(--brand-primary);color:#fff;}
.btn-x--dark:hover{background:#092C25;color:#fff;transform:translateY(-1px);}
.btn-x--light{background:#fff;color:var(--brand-ink);border-color:rgba(255,255,255,.24);}
.btn-x--light:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-x--sm{padding:8px 15px;font-size:13px;}
.btn-x--lg{padding:14px 26px;font-size:15px;}
.btn-x:focus{outline:2px solid var(--accent);outline-offset:2px;box-shadow:none;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 8px 24px rgba(15,26,23,.06);}
.header-top-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text strong{display:block;font-size:15px;font-weight:800;color:var(--brand-ink);letter-spacing:-.01em;line-height:1.25;}
.brand-text em{display:block;font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.1em;line-height:1.4;}
.nav-search{
  flex:1 1 auto;max-width:400px;display:flex;align-items:center;gap:8px;
  background:#EFEDE6;border:1px solid transparent;border-radius:var(--r-pill);
  padding:8px 15px;color:var(--muted);
  transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);background:#fff;color:var(--text);}
.nav-search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);font-family:inherit;
}
.nav-search input::placeholder{color:#9AA29E;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--brand-primary);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.header-nav{border-top:1px solid var(--line);}
.nav-scroll{
  display:flex;align-items:center;gap:10px;
  padding-top:9px;padding-bottom:9px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  scroll-snap-type:x proximity;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;scroll-snap-align:start;
  padding:7px 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;color:#44504C;
  background:#fff;border:1px solid var(--line);text-decoration:none;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.12;pointer-events:none;
}
.page-hero-inner{
  position:relative;display:grid;grid-template-columns:1.3fr .8fr;
  gap:48px;align-items:center;padding-top:56px;padding-bottom:52px;
}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:16px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs span{margin:0 6px;color:#B6B4AC;}
.crumbs .current{color:#3C4744;}
.hero-kw{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-latin);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-primary);background:var(--accent-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);font-weight:800;line-height:1.12;
  letter-spacing:-.02em;margin-bottom:16px;
}
.hero-lead{font-size:16.5px;color:#3C4744;max-width:560px;margin-bottom:24px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag-x{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--accent);background:var(--accent-soft);
  border-radius:var(--r-pill);padding:5px 12px;
}
.hero-visual{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;
  border:1px solid rgba(15,26,23,.12);background:var(--surface);
  box-shadow:0 10px 30px rgba(11,59,49,.08);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}

/* ---------- kpi ---------- */
.kpi-strip{background:var(--surface);border-bottom:1px solid var(--line);}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.kpi-item{padding:22px 26px;border-right:1px solid var(--line);}
.kpi-item:last-child{border-right:0;}
.kpi-num{
  font-family:var(--font-latin);font-size:29px;font-weight:800;
  color:var(--brand-primary);letter-spacing:-.02em;line-height:1.15;
}
.kpi-num small{font-size:14px;font-weight:700;margin-left:2px;}
.kpi-label{font-size:13px;color:var(--muted);margin-top:4px;}

/* ---------- sections ---------- */
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:1200px){.section{padding-top:88px;padding-bottom:88px;}}
.section-head{max-width:720px;margin-bottom:32px;}
.section-label{
  font-family:var(--font-latin);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(24px,3.2vw,34px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;margin-bottom:12px;
}
.section-head p{color:var(--muted);font-size:15px;margin:0;}

/* ---------- doc layout ---------- */
.doc-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:48px;align-items:start;}
.doc-toc{
  position:sticky;top:132px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;
}
.doc-toc h2{
  font-family:var(--font-latin);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  margin-bottom:12px;
}
.doc-toc nav{display:flex;flex-direction:column;gap:2px;}
.doc-toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:#3C4744;
  border-left:2px solid transparent;text-decoration:none;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.doc-toc a:hover,.doc-toc a.is-current{background:var(--accent-soft);color:var(--brand-primary);border-left-color:var(--accent);}
.doc-toc .toc-idx{
  font-family:var(--font-latin);font-size:12px;font-weight:700;
  color:var(--accent);letter-spacing:.06em;
}
.doc-toc .toc-note{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);line-height:1.7;
}

.doc-content{max-width:840px;}
.doc-section{
  padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line);
  scroll-margin-top:140px;
}
.doc-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.sec-head{display:flex;gap:14px;align-items:baseline;margin-bottom:14px;}
.sec-idx{
  font-family:var(--font-latin);font-size:13px;font-weight:800;
  letter-spacing:.1em;color:var(--accent);flex:0 0 auto;
}
.doc-section h2{font-size:clamp(21px,2.5vw,28px);font-weight:700;line-height:1.3;}
.doc-section h3{font-size:17px;font-weight:700;margin:22px 0 10px;}
.doc-section p{color:#3C4744;font-size:15.5px;}
.doc-section p:last-child{margin-bottom:0;}

.split-row{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin:22px 0 6px;}
.split-row--reverse .split-media{order:-1;}
.split-media{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);background:var(--surface);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body{min-width:0;}

.list-check{list-style:none;margin:6px 0 0;}
.list-check li{
  position:relative;padding:9px 0 9px 26px;
  font-size:15px;color:#3C4744;border-bottom:1px dashed var(--line);
}
.list-check li:last-child{border-bottom:0;}
.list-check li::before{
  content:"";position:absolute;left:3px;top:17px;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}

.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px;}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.mini-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.mini-card h4{font-size:14.5px;font-weight:700;margin-bottom:6px;}
.mini-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7;}

.step-line{list-style:none;margin-top:20px;counter-reset:st;display:grid;gap:14px;}
.step-line li{
  position:relative;padding:14px 18px 14px 58px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  font-size:14.5px;color:#3C4744;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step-line li:hover{border-color:var(--accent);transform:translateX(3px);}
.step-line li::before{
  counter-increment:st;content:counter(st,decimal-leading-zero);
  position:absolute;left:18px;top:15px;
  font-family:var(--font-latin);font-size:15px;font-weight:800;
  color:var(--accent);letter-spacing:.04em;
}
.step-line strong{color:var(--brand-ink);}

/* ---------- entries ---------- */
.entry-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start;}
.entry-stack{display:grid;gap:24px;}
.entry-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;text-decoration:none;height:100%;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.entry-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.entry-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDEAE3;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;}
.entry-card--tall .entry-thumb{aspect-ratio:4/3;}
.entry-body{padding:18px 20px 20px;}
.entry-kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--accent);background:var(--accent-soft);border-radius:var(--r-pill);
  padding:4px 11px;margin-bottom:10px;
}
.entry-body h3{font-size:16.5px;font-weight:700;line-height:1.45;margin-bottom:8px;color:var(--brand-ink);}
.entry-card:hover .entry-body h3{color:var(--accent);}
.entry-body p{font-size:13.8px;color:var(--muted);margin:0;}
.entry-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--brand-primary);
}
.entry-card:hover .entry-more{color:var(--accent);}

/* ---------- notice ---------- */
.notice-band{
  background:var(--accent-soft);border:1px solid #F7D6C4;border-radius:var(--r-card);
  padding:26px 28px;
}
.notice-band h3{font-size:16px;font-weight:700;margin-bottom:12px;color:#8A3210;}
.notice-band ul{list-style:none;display:grid;gap:10px;}
.notice-band li{
  position:relative;padding-left:24px;font-size:14.5px;color:#5C3A2A;line-height:1.75;
}
.notice-band li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-primary);color:#EAF0ED;
  border-radius:var(--r-card);padding:44px 48px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,90,31,.14);
}
.cta-band h2{
  color:#fff;font-size:clamp(22px,2.8vw,30px);font-weight:700;
  line-height:1.3;margin-bottom:12px;
}
.cta-band p{color:#B9C7C1;font-size:15px;margin:0 0 22px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:1;}
.cta-badges span{
  font-size:12.5px;font-weight:600;letter-spacing:.04em;color:#DCE6E1;
  border:1px solid rgba(255,255,255,.22);border-radius:var(--r-pill);
  padding:7px 14px;background:rgba(255,255,255,.05);
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-ink);color:#C9D2CE;margin-top:64px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;}
.footer-col{padding:0 28px;border-left:1px solid rgba(255,255,255,.09);}
.footer-col:first-child{border-left:0;padding-left:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:15px;font-weight:700;}
.footer-col p{font-size:13.5px;line-height:1.8;color:#9FA9A5;margin:0;}
.footer-col h4{
  font-family:var(--font-latin);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:#8A948F;margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#C9D2CE;font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.09);
  padding:18px 0 28px;display:flex;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:13px;color:#8A948F;
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .doc-layout{gap:32px;grid-template-columns:230px minmax(0,1fr);}
}
@media (max-width:991px){
  .page-hero-inner{grid-template-columns:1fr;gap:30px;padding-top:44px;padding-bottom:44px;}
  .hero-visual{max-width:520px;}
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .doc-toc{position:static;}
  .doc-toc nav{flex-direction:row;flex-wrap:wrap;}
  .doc-toc a{border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);}
  .doc-toc a.is-current{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary);}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .kpi-item:nth-child(2){border-right:0;}
  .kpi-item:nth-child(1),.kpi-item:nth-child(2){border-bottom:1px solid var(--line);}
  .entry-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0;}
  .footer-col:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:767px){
  .brand-text em{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-nav{display:none;}
  .header-nav.is-open{display:block;}
  .nav-scroll{flex-direction:column;align-items:stretch;gap:6px;overflow:visible;padding-top:12px;padding-bottom:14px;}
  .nav-pill{width:100%;text-align:center;padding:10px 16px;}
  .split-row{grid-template-columns:1fr;gap:22px;}
  .split-row--reverse .split-media{order:0;}
  .mini-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:23px;}
  .section{padding-top:48px;padding-bottom:48px;}
  .site-footer{padding-top:44px;}
}
@media (max-width:575px){
  .kpi-grid{grid-template-columns:1fr;}
  .kpi-item{border-right:0;border-bottom:1px solid var(--line);}
  .kpi-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-col{padding:0;border-left:0;}
  .doc-toc{padding:16px 14px;}
  .cta-band{padding:28px 20px;}
  .notice-band{padding:22px 20px;}
}

/* roulang page: category4 */
:root{
  --brand-ink:#0F1A17;
  --brand-primary:#0B3B31;
  --brand-primary-2:#124C40;
  --accent:#FF5A1F;
  --accent-soft:#FFEDE4;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E4E1D9;
  --text:#1B1F1D;
  --muted:#6B7370;
  --ok:#2F7D5B;
  --warn:#B4531B;

  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;

  --shadow-hover:0 10px 30px rgba(11,59,49,.08);
  --sp-section:96px;
  --sp-section-sm:56px;
  --ease:cubic-bezier(.2,.7,.2,1);

  --bs-primary:#0B3B31;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B1F1D;
  --bs-border-color:#E4E1D9;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--accent-soft);color:var(--brand-ink);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:992px){.container{padding:0 32px;}}

.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--accent);
  background:var(--accent-soft);
  border-radius:var(--radius-pill);
  padding:5px 12px;
}
.num-label{
  font-family:Inter,Manrope,"PingFang SC",system-ui,sans-serif;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  white-space:nowrap;
}
.btn-x--primary{background:var(--accent);color:#fff;}
.btn-x--primary:hover{background:#E84B12;color:#fff;transform:translateY(-2px);}
.btn-x--ghost{background:transparent;color:var(--brand-primary);border-color:rgba(11,59,49,.28);}
.btn-x--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-x--light{background:#fff;color:var(--brand-primary);}
.btn-x--light:hover{background:var(--accent-soft);color:var(--brand-ink);transform:translateY(-2px);}
.btn-x--sm{padding:9px 16px;font-size:14px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(247,245,240,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(0,0,0,.04),0 8px 24px rgba(11,59,49,.05);}
.header-top{border-bottom:1px solid var(--line);}
.header-top-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:64px;
  padding-top:10px;
  padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{display:inline-flex;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--brand-ink);letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.06em;margin-top:2px;}

.nav-search{
  display:none;
  flex:1 1 auto;
  max-width:420px;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:8px 16px;
  color:var(--muted);
  transition:border-color .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--accent);}
.nav-search input{
  flex:1;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--text);
  min-width:0;
}
.nav-search input::placeholder{color:#9AA19E;}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand-primary);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

.header-nav{background:rgba(255,255,255,.6);}
.nav-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
  padding-top:8px;
  padding-bottom:8px;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  padding:7px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:500;
  color:var(--brand-primary);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-pill:hover{border-color:var(--accent);color:var(--accent);}
.nav-pill.active{background:var(--brand-primary);border-color:var(--brand-primary);color:#fff;font-weight:600;}

@media (min-width:860px){
  .nav-search{display:flex;}
  .nav-toggle{display:none;}
}
@media (max-width:859px){
  .site-header:not(.nav-open) .header-nav{display:none;}
  .site-header.nav-open .header-nav{display:block;background:#fff;border-top:1px solid var(--line);}
  .site-header.nav-open .nav-scroll{flex-direction:column;align-items:stretch;overflow:visible;padding:12px 20px;}
  .site-header.nav-open .nav-pill{justify-content:flex-start;}
}

/* ---------- Hero 条 ---------- */
.hero-band{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2EFE8 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 40px;
}
.hero-band-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:26px;
  align-items:center;
}
.hero-band h1{
  font-size:clamp(28px,4.4vw,46px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  margin:14px 0 14px;
}
.hero-band .sub{
  font-size:16px;
  color:var(--muted);
  max-width:620px;
}
.hero-visual{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 1px 0 rgba(11,59,49,.04);
  aspect-ratio:16/10;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.fact-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:7px 14px;
  font-size:13px;
  color:var(--brand-primary);
}
.fact-chip b{font-weight:700;color:var(--brand-ink);}
@media (min-width:900px){
  .hero-band{padding:56px 0 52px;}
  .hero-band-inner{grid-template-columns:1fr 400px;gap:48px;}
}

/* ---------- 主体布局 ---------- */
.page-body{padding:var(--sp-section-sm) 0 0;}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;}
.article-col{max-width:800px;}

.toc{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
}
.toc h2{
  font-size:13px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:600;
  margin-bottom:12px;
}
.toc ol{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:block;
  padding:8px 10px;
  border-radius:6px;
  font-size:14px;
  color:var(--brand-primary);
  border-left:2px solid transparent;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.toc a:hover{background:var(--accent-soft);border-left-color:var(--accent);color:var(--brand-ink);}
@media (min-width:992px){
  .page-body{padding:var(--sp-section) 0 0;}
  .content-layout{grid-template-columns:264px minmax(0,1fr);gap:56px;}
  .toc{position:sticky;top:132px;}
}

.block{margin-bottom:56px;scroll-margin-top:132px;}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:22px;}
.block-head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.3;
  padding-left:14px;
  border-left:3px solid var(--accent);
}
.block-head p{margin-top:10px;color:var(--muted);font-size:15px;}

/* 自查步骤（编号非对称版式） */
.step-list{border-top:1px solid var(--line);}
.step{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:16px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:transform .2s var(--ease);
}
.step:hover{transform:translateX(4px);}
.step-no{
  font-family:Inter,Manrope,"PingFang SC",system-ui,sans-serif;
  font-size:30px;
  font-weight:800;
  line-height:1;
  color:var(--accent);
  letter-spacing:.02em;
}
.step h3{font-size:18px;margin-bottom:6px;}
.step p{font-size:15px;color:var(--muted);}
.step .inl{
  display:inline-block;
  margin-top:10px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-primary);
  border-bottom:1px solid rgba(11,59,49,.25);
}
.step .inl:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* 图文块 */
.media-block{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.media-block:hover{box-shadow:var(--shadow-hover);border-color:var(--accent);transform:translateY(-2px);}
.media-block img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:8px;
}
.media-block h3{font-size:19px;margin-bottom:8px;}
.media-block p{font-size:15px;color:var(--muted);}
@media (min-width:768px){
  .media-block{grid-template-columns:300px minmax(0,1fr);gap:26px;align-items:center;padding:22px;}
  .media-block.reverse{grid-template-columns:minmax(0,1fr) 300px;}
  .media-block.reverse .media-block-media{order:2;}
}

.check-list{display:flex;flex-direction:column;gap:10px;margin-top:14px;}
.check-list li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  color:var(--text);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand-primary);
}

/* 风险对照 */
.risk-table-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--surface);
}
.risk-table{width:100%;border-collapse:collapse;font-size:15px;}
.risk-table thead th{
  position:sticky;
  top:0;
  background:#F2EFE8;
  color:var(--brand-ink);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  text-align:left;
  padding:14px 18px;
  border-bottom:1px solid var(--line);
}
.risk-table td{
  padding:16px 18px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  color:var(--muted);
}
.risk-table tbody tr:last-child td{border-bottom:0;}
.risk-table td:first-child{color:var(--brand-ink);font-weight:600;}
.tag-warn{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  background:var(--accent-soft);
  color:var(--accent);
}
.tag-ok{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  background:rgba(47,125,91,.1);
  color:var(--ok);
}

/* FAQ */
.qa-list{border-top:1px solid var(--line);}
.qa-item{border-bottom:1px solid var(--line);}
.qa-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  background:transparent;
  border:0;
  text-align:left;
  padding:20px 2px;
  font-size:17px;
  font-weight:600;
  color:var(--brand-ink);
  cursor:pointer;
  transition:color .18s var(--ease);
}
.qa-q:hover{color:var(--accent);}
.qa-icon{
  flex:0 0 auto;
  position:relative;
  width:20px;height:20px;
  margin-top:4px;
  transition:transform .22s var(--ease);
}
.qa-icon::before,.qa-icon::after{
  content:"";
  position:absolute;
  background:var(--accent);
  border-radius:2px;
}
.qa-icon::before{left:0;top:9px;width:20px;height:2px;}
.qa-icon::after{left:9px;top:0;width:2px;height:20px;transition:opacity .2s var(--ease);}
.qa-item.open .qa-icon{transform:rotate(90deg);}
.qa-item.open .qa-icon::after{opacity:0;}
.qa-a{
  display:none;
  padding:0 2px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:760px;
}
.qa-item.open .qa-a{display:block;}

/* 关联入口卡 */
.entry-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;}
.entry-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.entry-card:hover{box-shadow:var(--shadow-hover);border-color:var(--accent);transform:translateY(-2px);}
.entry-card h3{font-size:19px;}
.entry-card p{font-size:15px;color:var(--muted);}
.entry-card .entry-link{
  margin-top:auto;
  font-size:14px;
  font-weight:600;
  color:var(--brand-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.entry-card .entry-link:hover{color:var(--accent);}
.entry-card--wide{background:#F2EFE8;}
@media (min-width:768px){
  .entry-grid{grid-template-columns:1.35fr 1fr;}
  .entry-grid .entry-card:nth-child(3){grid-column:1 / -1;}
}

/* 提示条 */
.notice{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--accent-soft);
  border:1px solid rgba(255,90,31,.22);
  border-radius:var(--radius-card);
  padding:20px 22px;
}
.notice svg{flex:0 0 auto;margin-top:3px;color:var(--accent);}
.notice strong{display:block;color:var(--brand-ink);font-size:15px;margin-bottom:4px;}
.notice p{font-size:14px;color:#7A431F;}

/* CTA */
.cta-block{
  background:var(--brand-ink);
  color:#fff;
  border-radius:14px;
  padding:40px 24px;
  margin-top:var(--sp-section-sm);
}
.cta-block h2{color:#fff;font-size:clamp(22px,2.8vw,32px);line-height:1.3;}
.cta-block p{color:rgba(255,255,255,.72);margin-top:12px;font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-tags span{
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:rgba(255,255,255,.86);
  border:1px solid rgba(255,255,255,.24);
  border-radius:var(--radius-pill);
  padding:6px 14px;
}
@media (min-width:992px){
  .cta-block{padding:56px;margin-top:var(--sp-section);}
}

/* 滚动进场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s var(--ease),transform .24s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-ink);
  color:rgba(255,255,255,.72);
  margin-top:72px;
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
}
.footer-col{position:relative;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:800;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-col h4{
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.55);
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px;}
  .footer-col + .footer-col{padding-left:28px;}
  .footer-col + .footer-col::before{
    content:"";
    position:absolute;
    left:0;top:4px;bottom:4px;
    width:1px;
    background:rgba(255,255,255,.12);
  }
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}