/* roulang page: index */
:root{
  --brand:#0F3B36;
  --brand-deep:#0B2A26;
  --night:#0B1518;
  --accent:#FF6A2B;
  --accent-600:#E85A1E;
  --glow:#5FD3C6;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#11161A;
  --muted:#6E6A63;
  --line:#E3E0D9;
  --radius:4px;
  --radius-sm:2px;
  --shadow:0 8px 24px rgba(11,21,24,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.site-body.drawer-open{overflow:hidden}
.site-body img{max-width:100%;display:block;border:0}
.site-body a{color:inherit;text-decoration:none}
.site-body button{font:inherit;color:inherit;background:none;border:0}
.site-body ul{list-style:none;margin:0;padding:0}
.site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p{margin:0}
.site-body :focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container-x{padding-left:32px;padding-right:32px}}
@media(min-width:1024px){.container-x{padding-left:48px;padding-right:48px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{background:#fff;box-shadow:0 4px 18px rgba(11,21,24,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:70px}
.brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0}
.brand-mark{color:var(--accent);font-size:15px;line-height:1;transform:translateY(-1px)}
.brand-text{font-weight:800;letter-spacing:-.01em;font-size:19px;color:var(--brand)}
.main-nav{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink);
  position:relative;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.caret{font-size:9px;color:var(--muted);transition:transform .2s var(--ease)}
.nav-item:hover .caret{transform:rotate(180deg)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--brand);
  background:#fff;cursor:pointer;transition:all .2s var(--ease);
}
.icon-btn:hover{border-color:var(--glow);color:var(--accent);transform:translateY(-1px)}
.nav-toggle{display:inline-flex}
@media(min-width:1024px){.nav-toggle{display:none}}

/* mega */
.mega{
  position:absolute;top:calc(100% + 14px);left:-120px;width:860px;
  background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
  border-radius:var(--radius);padding:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  box-shadow:var(--shadow);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.1fr 1fr 1.2fr;gap:26px}
.mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:12px}
.mega-list li+li{border-top:1px solid var(--line)}
.mega-list a{display:flex;align-items:center;justify-content:space-between;padding:10px 0;font-size:14px;transition:color .2s var(--ease)}
.mega-list a span{font-size:12px;color:var(--muted)}
.mega-list a:hover{color:var(--accent)}
.mega-mini li{padding:8px 0;border-bottom:1px solid var(--line)}
.mega-mini a{font-size:14px;line-height:1.5;display:block;transition:color .2s var(--ease)}
.mega-mini a:hover{color:var(--accent)}
.mega-mini time{font-size:12px;color:var(--muted)}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.mega-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.mega-card div{padding:12px 14px}
.mega-card strong{display:block;font-size:15px;font-weight:700}
.mega-card span{font-size:12.5px;color:var(--muted)}
.mega-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:rgba(11,21,24,.55);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--paper);padding:26px 22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s var(--ease);
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:12px 4px;font-size:16px;font-weight:600;
  border-bottom:1px solid var(--line);transition:color .2s var(--ease);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--accent)}
.drawer-foot{margin-top:26px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-600)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-on-dark{border-color:rgba(255,255,255,.28);color:#fff}
.btn-on-dark:hover{background:#fff;color:var(--night);border-color:#fff}
.btn-sm{padding:11px 18px;font-size:14px}

.badge{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:700;
  padding:4px 10px;border-radius:var(--radius-sm);
  background:rgba(15,59,54,.08);color:var(--brand);
}
.badge-accent{background:rgba(255,106,43,.12);color:var(--accent-600)}
.badge-light{background:rgba(255,255,255,.14);color:#fff}
.link-underline{position:relative;display:inline-block;font-weight:600;color:var(--brand)}
.link-underline::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);
  transition:width .2s var(--ease);
}
.link-underline:hover::after{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  padding:140px 0 76px;background-color:var(--night);color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,21,24,.9) 0%,rgba(11,21,24,.72) 55%,rgba(11,21,24,.9) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:26px 26px;opacity:.55;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-grid{display:grid;grid-template-columns:1fr;gap:44px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--glow);border:1px solid rgba(95,211,198,.42);border-radius:var(--radius-sm);padding:6px 12px;
}
.hero-title{
  font-size:clamp(34px,4.2vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.08;
  margin:22px 0 18px;max-width:16em;
}
.hero-sub{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.78);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.stat-num{font-size:26px;font-weight:800;letter-spacing:-.01em;display:block;line-height:1.2}
.stat-label{font-size:13px;color:rgba(255,255,255,.66)}
.hero-card{
  position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);overflow:hidden;
}
.hero-card-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  background:var(--accent);color:#fff;font-weight:800;font-size:13px;
  padding:5px 10px;border-radius:var(--radius-sm);letter-spacing:.04em;
}
.hero-card-img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-card-body{padding:20px 22px 24px;background:rgba(11,21,24,.72)}
.hero-card-title{font-size:20px;font-weight:700;margin:12px 0 8px;line-height:1.4}
.hero-card-body p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.74)}

/* ---------- sections ---------- */
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:104px 0}}
.section-tight{padding:52px 0}
@media(min-width:1024px){.section-tight{padding:72px 0}}
.eyebrow{font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--accent-600);margin-bottom:12px}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.25}
.section-desc{font-size:15.5px;color:var(--muted);margin-top:12px;max-width:44em}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head .section-desc{margin-top:10px}
.hairline{height:1px;background:var(--line);border:0;margin:0}

/* trust strip */
.trust-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:768px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.trust-grid{grid-template-columns:repeat(4,1fr)}}
.trust-cell{padding:26px 4px;border-bottom:1px solid var(--line)}
@media(min-width:768px){
  .trust-cell{border-bottom:0;border-right:1px solid var(--line);padding:30px 26px}
  .trust-cell:last-child{border-right:0}
}
.trust-cell strong{display:block;font-size:15px;font-weight:700;margin-bottom:6px}
.trust-cell span{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- index rows ---------- */
.index-grid{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:1024px){
  .index-grid{grid-template-columns:7fr 5fr;gap:0 56px;align-items:start}
  .index-col-right{margin-top:56px}
}
.index-row{
  display:grid;grid-template-columns:44px 1fr auto 20px;align-items:center;gap:14px;
  padding:20px 14px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.index-row:hover{background:#fff}
.row-num{font-size:18px;font-weight:800;color:var(--accent);letter-spacing:-.02em}
.row-title{display:block;font-size:17px;font-weight:700;line-height:1.4;transition:color .2s var(--ease)}
.index-row:hover .row-title{color:var(--brand)}
.row-desc{display:block;font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:4px}
.row-meta{font-size:12.5px;color:var(--muted);white-space:nowrap}
.row-arrow{color:var(--muted);font-size:13px;transition:transform .22s var(--ease),color .22s var(--ease)}
.index-row:hover .row-arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- cards ---------- */
.card-entry{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card-entry:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.card-media{overflow:hidden;background:#EDEAE3}
.card-entry:hover .card-media img{transform:scale(1.03)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.card-media-tall img{aspect-ratio:4/3}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.card-title-lg{font-size:22px}
.card-text{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted);margin-top:auto}
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){
  .feature-grid{grid-template-columns:7fr 5fr;gap:24px}
  .feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
  .feature-strip{grid-column:1 / -1}
}
.strip-card{
  display:grid;grid-template-columns:1fr;gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
@media(min-width:768px){.strip-card{grid-template-columns:220px 1fr;align-items:center}}
.strip-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.strip-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.strip-card:hover img{transform:scale(1.03)}
.strip-body{padding:22px 24px}
.strip-card:hover .card-title{color:var(--brand)}

/* ---------- cms list ---------- */
.cms-lead{
  display:grid;grid-template-columns:1fr;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
@media(min-width:900px){.cms-lead{grid-template-columns:5fr 7fr}}
.cms-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.cms-lead-media{overflow:hidden}
.cms-lead-media img{width:100%;height:100%;min-height:230px;object-fit:cover;transition:transform .4s var(--ease)}
.cms-lead:hover .cms-lead-media img{transform:scale(1.03)}
.cms-lead-body{padding:28px 30px;display:flex;flex-direction:column;gap:12px}
.cms-list{margin-top:8px;border-top:1px solid var(--line)}
.cms-row{
  display:grid;grid-template-columns:1fr;gap:6px;padding:20px 12px;
  border-bottom:1px solid var(--line);transition:background .22s var(--ease);
}
@media(min-width:768px){.cms-row{grid-template-columns:1fr auto;align-items:center;gap:24px}}
.cms-row:hover{background:#fff}
.cms-row-title{font-size:16.5px;font-weight:700;line-height:1.5}
.cms-row-title span{background-image:linear-gradient(var(--accent),var(--accent));background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .25s var(--ease)}
.cms-row:hover .cms-row-title span{background-size:100% 1px}
.cms-row-text{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:4px}
.cms-row-meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--muted);white-space:nowrap}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);background:#fff;
  padding:52px 24px;text-align:center;
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- rail ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.rail-nav{display:flex;gap:8px}
.rail-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:82%;
  gap:20px;overflow-x:auto;scroll-behavior:smooth;padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
@media(min-width:640px){.rail-track{grid-auto-columns:46%}}
@media(min-width:1024px){.rail-track{grid-auto-columns:31%}}
@media(min-width:1280px){.rail-track{grid-auto-columns:23.5%}}
.rail-track::-webkit-scrollbar{display:none}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);background:transparent;transition:background .22s var(--ease)}
.faq-item[open]{background:#fff}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 14px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:13px;transition:transform .2s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 14px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:60em}

/* ---------- subscribe ---------- */
.subscribe-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 26px;display:grid;grid-template-columns:1fr;gap:28px;
}
@media(min-width:900px){.subscribe-panel{grid-template-columns:1fr 1fr;padding:44px 46px;gap:48px;align-items:center}}
.form-label{display:block;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--muted);margin-bottom:8px}
.form-row{display:flex;flex-wrap:wrap;gap:12px}
.form-input{
  flex:1;min-width:220px;height:48px;padding:0 16px;font-size:15px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-input::placeholder{color:#A6A199}
.form-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,43,.14)}
.form-hint{font-size:13px;color:var(--muted);margin-top:12px}
.form-error{font-size:13px;color:#D9481F;margin-top:10px}

/* ---------- cta bar ---------- */
.cta-bar{background:var(--night);color:#fff;padding:56px 0}
.cta-inner{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:900px){.cta-inner{grid-template-columns:1fr auto;gap:48px}}
.cta-text{font-size:clamp(20px,2.4vw,28px);font-weight:700;letter-spacing:-.015em;line-height:1.4;max-width:28em}
.cta-sub{font-size:14.5px;color:rgba(255,255,255,.66);margin-top:12px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-icon{
  display:inline-flex;align-items:center;gap:10px;padding:13px 18px;font-size:14px;font-weight:600;
  border:1px solid rgba(255,255,255,.24);border-radius:var(--radius-sm);color:#fff;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.cta-icon:hover{color:var(--accent);border-color:var(--accent);background:rgba(255,106,43,.08)}
.cta-icon i{font-size:14px}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{font-size:19px;font-weight:800;color:#fff;display:inline-flex;align-items:center;gap:9px}
.footer-brand .brand-mark{color:var(--accent)}
.footer-about{font-size:14px;line-height:1.85;margin-top:14px;max-width:30em}
.footer-title{font-size:12px;letter-spacing:.08em;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;position:relative;display:inline-block;transition:color .2s var(--ease)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);transition:width .2s var(--ease)}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{width:100%}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-note{display:flex;flex-wrap:wrap;gap:18px}

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

/* roulang page: article */
:root{
  --brand:#0F3B36;
  --brand-deep:#0A2B27;
  --night:#0B1518;
  --accent:#FF6A2B;
  --accent-dark:#E5561A;
  --glow:#5FD3C6;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#11161A;
  --ink-soft:#232A2E;
  --muted:#6E6A63;
  --line:#E3E0D9;
  --line-strong:#D2CEC4;
  --r-card:4px;
  --r-badge:2px;
  --shadow-hover:0 8px 24px rgba(11,21,24,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::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(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container-x{padding-left:48px;padding-right:48px}}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);border-bottom:1px solid var(--line);transition:background .3s var(--ease),box-shadow .3s var(--ease)}
.site-header.is-solid{background:#fff;box-shadow:0 6px 24px rgba(11,21,24,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--brand);white-space:nowrap}
.brand-mark{color:var(--accent);font-size:15px;line-height:1;transform:translateY(-1px)}
.main-nav{display:none;align-items:center;gap:4px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;display:inline-block;padding:10px 13px;font-size:15px;color:var(--muted);border-radius:2px;transition:color .2s var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;background:var(--accent)}
.nav-item{position:relative}
.mega{
  position:absolute;top:calc(100% + 12px);left:50%;width:740px;
  background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-hover);
  opacity:0;visibility:hidden;transform:translate(-50%,6px);z-index:90;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px}
.mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin-bottom:12px}
.mega-list li+li,.mega-mini li+li{border-top:1px solid var(--line)}
.mega-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;font-size:14px;color:var(--ink-soft);transition:color .2s var(--ease)}
.mega-list a:hover{color:var(--accent)}
.mega-list .num{font-size:12px;color:var(--muted)}
.mega-mini a{display:block;padding:9px 0 2px;font-size:14px;line-height:1.5;color:var(--ink-soft);transition:color .2s var(--ease)}
.mega-mini a:hover{color:var(--accent)}
.mega-mini time{display:block;font-size:12px;color:var(--muted);padding-bottom:9px}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--paper);transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.mega-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-card div{padding:12px 14px 14px}
.mega-card strong{display:block;font-size:15px;color:var(--brand)}
.mega-card span{display:block;font-size:13px;color:var(--muted);line-height:1.6;margin-top:2px}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-card);color:var(--muted);transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.icon-btn svg{width:17px;height:17px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;border-radius:var(--r-badge);letter-spacing:.01em;transition:background .2s var(--ease),transform .2s var(--ease)}
.btn-primary:hover{background:var(--accent-dark)}
.btn-primary .arrow{display:inline-block;transition:transform .2s var(--ease)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.menu-toggle{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-card);padding:0 11px}
.menu-toggle span{display:block;height:2px;background:var(--brand);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.menu-toggle{display:none}}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line);padding:8px 0 20px}
.mobile-drawer.is-open{display:block}
@media (min-width:1024px){.mobile-drawer{display:none !important}}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:14px 0;font-size:16px;color:var(--ink-soft);border-bottom:1px solid var(--line);min-height:48px}
.drawer-link.is-active{color:var(--brand);font-weight:600}
.drawer-link .num{font-size:13px;color:var(--muted)}
.drawer-cta{margin-top:18px;width:100%;justify-content:center}

/* ============ article head ============ */
.article-top{padding:36px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);min-width:0}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{display:inline-block;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom;color:var(--muted)}
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--line);margin-bottom:36px}
.badge{display:inline-block;padding:4px 10px;font-size:12px;letter-spacing:.08em;color:var(--brand);background:rgba(15,59,54,.07);border:1px solid rgba(15,59,54,.16);border-radius:var(--r-badge)}
.article-title{
  font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1.16;letter-spacing:-.02em;
  color:var(--ink);margin:16px 0 20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--muted)}
.article-meta .meta-tag{padding:3px 9px;font-size:12px;letter-spacing:.06em;border:1px solid var(--line-strong);border-radius:var(--r-badge);color:var(--muted)}
.article-meta .dot{width:4px;height:4px;background:var(--line-strong);border-radius:50%}

/* ============ layout ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;padding-bottom:72px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;justify-content:space-between;gap:52px}
}
.article-main{min-width:0;max-width:760px;overflow-wrap:break-word}

/* ============ article body ============ */
.article-body{font-size:17px;line-height:1.85;color:var(--ink-soft)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  color:var(--ink);margin:2.2em 0 .8em;padding-left:16px;border-left:4px solid var(--accent);
  scroll-margin-top:96px;
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--ink);margin:1.8em 0 .6em;scroll-margin-top:96px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:#F1F0EA;border-left:3px solid var(--accent);
  color:var(--muted);font-size:16px;border-radius:0 var(--r-card) var(--r-card) 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body ul li{position:relative;margin:.42em 0;padding-left:6px}
.article-body ul li::marker{color:var(--accent)}
.article-body ol{list-style:decimal}
.article-body ol li{margin:.42em 0}
.article-body ol li::marker{color:var(--accent);font-weight:600}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(15,59,54,.35);text-underline-offset:3px;transition:text-decoration-color .2s var(--ease)}
.article-body a:hover{text-decoration-color:var(--accent)}
.article-body img{margin:1.6em auto;border-radius:var(--r-card)}
.article-body figure{margin:1.8em 0;max-width:100%}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);display:block;overflow-x:auto;
}
.article-body th{background:var(--night);color:#fff;font-weight:600;text-align:left;white-space:nowrap}
.article-body th,.article-body td{padding:10px 14px;border:1px solid var(--line);vertical-align:top}
.article-body tbody tr:nth-child(even){background:#FBFAF7}
.article-body code{font-family:var(--font-num);font-size:14px;background:#F1F0EA;padding:2px 6px;border-radius:2px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body iframe,.article-body video{max-width:100%;border-radius:var(--r-card)}

.article-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;background:#fff;
}
.empty-title{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px}
.empty-desc{font-size:15px;color:var(--muted);max-width:420px;margin:0 auto 20px}

/* ============ article foot ============ */
.article-foot{margin-top:52px;padding-top:32px;border-top:1px solid var(--line)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.tag{display:inline-block;padding:6px 14px;font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-badge);background:#fff;transition:color .2s var(--ease),border-color .2s var(--ease)}
.tag:hover{color:var(--accent);border-color:var(--accent)}
.prev-next{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:28px}
@media (min-width:640px){.prev-next{grid-template-columns:1fr 1fr}}
.pn-card{display:block;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease)}
.pn-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:var(--line-strong)}
.pn-label{font-size:12px;letter-spacing:.08em;color:var(--muted);display:block;margin-bottom:8px}
.pn-card strong{display:block;font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .2s var(--ease)}
.pn-card:hover strong{color:var(--brand)}
.pn-card time{display:block;margin-top:10px;font-size:13px;color:var(--muted)}
.back-cat{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--brand);font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease)}
.back-cat:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ============ sidebar ============ */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0}
@media (min-width:1024px){.article-side{position:sticky;top:96px;align-self:start}}
.side-block{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px}
.side-title{font-size:13px;letter-spacing:.08em;color:var(--muted);padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:14px}
.toc-item a{display:block;padding:7px 0;font-size:14px;line-height:1.55;color:var(--ink-soft);border-left:2px solid transparent;padding-left:10px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.toc-item a:hover{color:var(--accent);border-left-color:var(--accent)}
.toc-item.is-sub a{padding-left:22px;font-size:13px;color:var(--muted)}
.share-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.share-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:10px 12px;font-size:14px;color:var(--muted);border:1px solid var(--line);border-radius:var(--r-card);background:#fff;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.share-btn:hover{color:var(--accent);border-color:var(--accent);background:#FFF7F2}
.share-btn.is-done{color:var(--brand);border-color:var(--glow);background:#F0FBF9}
.share-btn svg{width:16px;height:16px}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{display:flex;gap:12px;padding:14px 0;align-items:flex-start}
.side-list img{width:72px;height:54px;object-fit:cover;border-radius:var(--r-badge);flex:0 0 auto;transition:transform .4s var(--ease)}
.side-list a:hover img{transform:scale(1.03)}
.side-list strong{display:block;font-size:14px;font-weight:600;line-height:1.5;color:var(--ink);transition:color .2s var(--ease)}
.side-list a:hover strong{color:var(--accent)}
.side-list span{display:block;font-size:12px;color:var(--muted);margin-top:5px}

/* ============ related cards ============ */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.25}
.section-head p{font-size:14px;color:var(--muted);max-width:520px}
.card-grid-4{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.card-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}}
.card-entry{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease)}
.card-entry:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:var(--line-strong)}
.card-media{overflow:hidden;background:#EDEBE5}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.card-entry:hover .card-media img{transform:scale(1.03)}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.badge-soft{align-self:flex-start;font-size:12px;letter-spacing:.08em;color:var(--brand);background:rgba(15,59,54,.07);padding:3px 9px;border-radius:var(--r-badge);margin-bottom:10px}
.card-body h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease)}
.card-entry:hover .card-body h3{color:var(--brand)}
.card-body p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body time{margin-top:14px;font-size:13px;color:var(--muted)}

/* ============ CTA band ============ */
.cta-band{background:var(--night);color:#fff;padding:38px 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px}
.cta-text{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em;line-height:1.35;max-width:520px}
.cta-text small{display:block;font-size:14px;font-weight:400;color:rgba(255,255,255,.6);margin-top:8px;letter-spacing:0}
.cta-icons{display:flex;flex-wrap:wrap;gap:10px}
.cta-icon{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:11px 16px;font-size:14px;color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.22);border-radius:var(--r-card);transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.cta-icon:hover{color:var(--accent);border-color:var(--accent);background:rgba(255,106,43,.08)}
.cta-icon svg{width:16px;height:16px}

/* ============ footer ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:34px;border-bottom:1px solid var(--line)}
@media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;color:var(--brand);letter-spacing:-.01em}
.footer-about{margin-top:14px;font-size:14px;line-height:1.8;color:var(--muted);max-width:340px}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--ink);font-weight:600;margin-bottom:14px}
.footer-links li+li{margin-top:10px}
.footer-links a,.footer-links span{font-size:14px;color:var(--muted);display:inline-block;position:relative;transition:color .2s var(--ease)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease)}
.footer-links a:hover{color:var(--ink)}
.footer-links a:hover::after{width:100%}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;font-size:13px;color:var(--muted)}
.footer-note{display:flex;flex-wrap:wrap;gap:18px}

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

/* roulang page: category1 */
:root{
    --brand:#0F3B36;
    --brand-deep:#0B2C28;
    --night:#0B1518;
    --accent:#FF6A2B;
    --accent-dark:#E85A1C;
    --mint:#5FD3C6;
    --paper:#F7F6F2;
    --card:#FFFFFF;
    --ink:#11161A;
    --muted:#6E6A63;
    --line:#E3E0D9;
    --radius:4px;
    --radius-sm:2px;
    --shadow-hover:0 8px 24px rgba(11,21,24,.08);
    --ease:cubic-bezier(.2,.7,.3,1);
    --container:1240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.8;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  .num,.tabular{font-family:"Inter","Helvetica Neue",Arial,sans-serif;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1,"lnum" 1;}
  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
  :focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

  /* ————— Header / Nav ————— */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:28px;height:72px;}
  .brand{
    display:flex;align-items:center;gap:8px;
    font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;
    color:var(--ink);
    transition:color .2s var(--ease);
  }
  .brand:hover{color:var(--brand);}
  .brand-mark{color:var(--accent);font-size:13px;line-height:1;}
  .brand-sub{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.08em;}

  .main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
  .nav-item{position:relative;}
  .nav-link{
    position:relative;display:inline-block;
    font-size:15px;font-weight:500;color:var(--muted);
    padding:6px 0;
    transition:color .2s var(--ease);
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link.is-active{color:var(--brand);font-weight:600;}
  .nav-link.is-active::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
    background:var(--accent);border-radius:1px;
  }
  .mega{
    position:absolute;top:calc(100% + 16px);left:50%;
    width:760px;
    transform:translate(-50%,6px);
    background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
    border-radius:var(--radius);padding:24px;
    box-shadow:0 14px 36px rgba(11,21,24,.10);
    opacity:0;visibility:hidden;
    transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
    z-index:70;
  }
  .nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0);}
  .mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;}
  .mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:12px;}
  .mega-list li a{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:9px 0;font-size:14px;border-bottom:1px solid var(--line);
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .mega-list li a:hover{color:var(--accent);padding-left:4px;}
  .mega-mini li{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:9px 0;font-size:14px;border-bottom:1px solid var(--line);
  }
  .mega-mini li a{transition:color .2s var(--ease);}
  .mega-mini li a:hover{color:var(--brand);}
  .mega-list .num,.mega-mini .num{font-size:12px;color:var(--muted);white-space:nowrap;}
  .mega-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
  .mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
  .mega-card:hover img{transform:scale(1.03);}
  .mega-card div{padding:12px 14px;}
  .mega-card strong{display:block;font-size:15px;}
  .mega-card span{font-size:13px;color:var(--muted);}

  .header-actions{display:flex;align-items:center;gap:12px;}
  .icon-btn{
    width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--muted);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .icon-btn:hover{color:var(--brand);border-color:var(--brand);background:#fff;}
  .nav-toggle{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);border-radius:var(--radius-sm);}
  .nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease);}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .nav-drawer{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:#fff;padding:20px 32px 48px;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
    z-index:55;
  }
  .nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .drawer-link{display:flex;align-items:center;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .drawer-link.is-active{color:var(--brand);font-weight:600;}
  .drawer-sub{padding:6px 0 14px;}
  .drawer-sub a{display:block;padding:10px 0;font-size:15px;color:var(--muted);}
  .drawer-note{font-size:13px;color:var(--muted);padding-top:18px;}

  /* ————— Buttons / Tags ————— */
  .btn-primary{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--accent);color:#fff;
    padding:14px 26px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;letter-spacing:.01em;
    transition:background .2s var(--ease),transform .2s var(--ease);
  }
  .btn-primary:hover{background:var(--accent-dark);}
  .btn-primary .arw{transition:transform .2s var(--ease);}
  .btn-primary:hover .arw{transform:translateX(4px);}
  .btn-primary.btn-sm{padding:10px 18px;font-size:14px;}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 26px;border:1px solid rgba(255,255,255,.42);
    border-radius:var(--radius-sm);color:#fff;font-size:15px;font-weight:600;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn-ghost:hover{background:#fff;color:var(--night);border-color:#fff;}
  .btn-line{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 22px;border:1px solid var(--line);border-radius:var(--radius-sm);
    color:var(--brand);font-size:14px;font-weight:600;background:#fff;
    transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
  }
  .btn-line:hover{border-color:var(--brand);background:var(--brand);color:#fff;}

  .tag{
    display:inline-block;padding:4px 10px;
    border:1px solid var(--line);border-radius:var(--radius-sm);
    font-size:12px;letter-spacing:.08em;color:var(--muted);background:#fff;
  }
  .tag--accent{color:var(--accent);border-color:rgba(255,106,43,.38);}
  .tag--dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);color:rgba(255,255,255,.86);}

  .link-underline{position:relative;color:var(--brand);font-weight:600;font-size:14px;}
  .link-underline::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease);}
  .link-underline:hover::after{width:100%;}

  /* ————— Hero ————— */
  .hero{
    position:relative;color:#fff;
    padding:92px 0 76px;
    background-color:var(--night);
    background-image:linear-gradient(180deg,rgba(11,21,24,.70),rgba(11,21,24,.90)),url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center 28%;
  }
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
    background-size:4px 4px;
  }
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.45fr 1fr;gap:56px;align-items:center;}
  .hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--mint);margin-bottom:20px;}
  .hero-eyebrow::before{content:"";width:22px;height:1px;background:var(--mint);display:block;}
  .hero h1{
    font-size:clamp(34px,4.2vw,56px);font-weight:800;letter-spacing:-.02em;line-height:1.08;
    margin-bottom:20px;
  }
  .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:640px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
  .hero-stat-num{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
  .hero-stat-label{font-size:13px;color:rgba(255,255,255,.6);}

  .hero-panel{
    background:#fff;color:var(--ink);
    border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    box-shadow:0 18px 46px rgba(11,21,24,.22);
  }
  .hero-panel-media{position:relative;}
  .hero-panel-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
  .hero-panel:hover .hero-panel-media img{transform:scale(1.03);}
  .hero-panel-badge{
    position:absolute;left:12px;top:12px;
    background:rgba(11,21,24,.84);color:#fff;
    font-size:12px;letter-spacing:.08em;padding:5px 10px;border-radius:var(--radius-sm);
  }
  .hero-panel-body{padding:22px 24px 24px;}
  .hero-panel-body h2{font-size:19px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px;}
  .hero-panel-body p{font-size:14.5px;color:var(--muted);line-height:1.75;}
  .hero-panel-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}

  /* ————— Sections ————— */
  .section{padding:88px 0;}
  .section--tight{padding:64px 0;}
  .section--paper{background:var(--paper);}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px;}
  .section-title{font-size:clamp(24px,2.7vw,32px);font-weight:700;letter-spacing:-.015em;line-height:1.25;}
  .section-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:560px;line-height:1.8;}
  .section-index{font-size:13px;letter-spacing:.14em;color:var(--accent);font-weight:700;}

  /* ————— Filter bar ————— */
  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding-bottom:26px;border-bottom:1px solid var(--line);}
  .chip{
    display:inline-flex;align-items:center;height:38px;padding:0 18px;
    border:1px solid var(--line);border-radius:999px;background:#fff;
    font-size:13.5px;color:var(--muted);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .chip:hover{border-color:var(--brand);color:var(--brand);}
  .chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}
  .filter-note{font-size:13px;color:var(--muted);padding-top:14px;}

  /* ————— Timeline ————— */
  .timeline{margin-top:6px;}
  .tl-item{display:grid;grid-template-columns:120px 1fr;border-bottom:1px solid var(--line);}
  .tl-date{position:relative;padding:30px 28px 30px 0;border-right:1px solid var(--line);}
  .tl-date::after{
    content:"";position:absolute;right:-4.5px;top:38px;
    width:8px;height:8px;border-radius:50%;background:var(--accent);
  }
  .tl-day{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.1;}
  .tl-mon{display:block;font-size:13px;color:var(--muted);margin-top:2px;}
  .tl-year{display:block;font-size:12px;color:var(--muted);letter-spacing:.08em;}
  .tl-body{padding:30px 0 30px 28px;}
  .tl-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 26px;
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .tl-item:hover .tl-card{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D8D4CB;}
  .tl-card h3{font-size:20px;font-weight:600;letter-spacing:-.01em;margin-bottom:10px;}
  .tl-card p{font-size:15.5px;color:var(--muted);line-height:1.78;margin-bottom:16px;}
  .tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
  .tl-meta .link-underline{margin-left:auto;}

  /* ————— Metrics ————— */
  .metric-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line);
    border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  }
  .metric{background:#fff;padding:30px 26px;transition:background .2s var(--ease);}
  .metric:hover{background:#FCFBF8;}
  .metric-num{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1.1;}
  .metric-label{font-size:13px;color:var(--muted);margin-top:8px;}
  .metric-hint{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7;}

  /* ————— Feature / Points ————— */
  .feat{display:grid;grid-template-columns:1.45fr 1fr;gap:44px;align-items:start;}
  .feat-media{overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:#fff;}
  .feat-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
  .feat-media:hover img{transform:scale(1.03);}
  .feat-body{padding-top:6px;}
  .feat-body h3{font-size:24px;font-weight:700;letter-spacing:-.015em;line-height:1.3;margin:16px 0 14px;}
  .feat-body p{font-size:15.5px;color:var(--muted);line-height:1.85;}
  .point{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);}
  .point:first-child{padding-top:0;}
  .point-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;padding-top:5px;}
  .point h4{font-size:16.5px;font-weight:600;margin-bottom:6px;}
  .point p{font-size:14.5px;color:var(--muted);line-height:1.75;}

  /* ————— Data table ————— */
  .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
  table.data-table{width:100%;border-collapse:collapse;min-width:720px;}
  .data-table th,.data-table td{
    padding:15px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);
  }
  .data-table th{background:var(--night);color:#fff;font-weight:600;font-size:13px;letter-spacing:.06em;border-bottom:0;}
  .data-table tbody tr:last-child td{border-bottom:0;}
  .data-table tbody tr{transition:background .2s var(--ease);}
  .data-table tbody tr:hover{background:#FCFBF8;}
  .data-table .cell-strong{font-weight:600;}

  /* ————— Related cards ————— */
  .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
  .card-entry{
    display:flex;flex-direction:column;
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .card-entry:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D8D4CB;}
  .card-media{overflow:hidden;}
  .card-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease);}
  .card-entry:hover .card-media img{transform:scale(1.03);}
  .card-body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column;}
  .card-body h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin:12px 0 10px;}
  .card-body p{font-size:14.5px;color:var(--muted);line-height:1.75;flex:1;}
  .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}

  /* ————— CTA band ————— */
  .cta-band{
    background:var(--night);color:#fff;padding:64px 0;
    position:relative;
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:4px 4px;
  }
  .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
  .cta-title{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.015em;}
  .cta-note{font-size:14.5px;color:rgba(255,255,255,.6);margin-top:8px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .cta-icon{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 18px;border:1px solid rgba(255,255,255,.24);border-radius:var(--radius-sm);
    font-size:14px;color:rgba(255,255,255,.86);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
    min-height:44px;
  }
  .cta-icon:hover{color:var(--accent);border-color:var(--accent);background:rgba(255,106,43,.08);}

  /* ————— Footer ————— */
  .site-footer{background:var(--night);color:#fff;padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.08);}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:8px;font-size:19px;font-weight:800;letter-spacing:-.01em;}
  .footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.58);margin-top:16px;max-width:380px;}
  .footer-title{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.5);margin-bottom:16px;}
  .footer-links li{margin-bottom:11px;font-size:14px;color:rgba(255,255,255,.72);}
  .footer-links a{position:relative;color:rgba(255,255,255,.72);transition:color .2s var(--ease);}
  .footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--mint);transition:width .2s var(--ease);}
  .footer-links a:hover{color:#fff;}
  .footer-links a:hover::after{width:100%;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.5);
  }
  .footer-note{display:flex;gap:22px;flex-wrap:wrap;}

  /* ————— Responsive ————— */
  @media (max-width:1279px){
    .mega{width:620px;}
    .mega-grid{grid-template-columns:1fr 1fr;}
    .mega-card{display:none;}
  }
  @media (max-width:1023px){
    .container-x{padding:0 24px;}
    .main-nav{display:none;}
    .nav-toggle{display:flex;}
    .hero{padding:72px 0 60px;}
    .hero-inner{grid-template-columns:1fr;gap:40px;}
    .hero-stats{gap:32px;}
    .section{padding:64px 0;}
    .feat{grid-template-columns:1fr;gap:32px;}
    .metric-grid{grid-template-columns:repeat(2,1fr);}
    .rel-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767px){
    body{font-size:16px;}
    .container-x{padding:0 20px;}
    .header-inner{height:64px;gap:16px;}
    .nav-drawer{top:64px;padding:16px 20px 40px;}
    .brand{font-size:17px;}
    .brand-sub{display:none;}
    .header-actions .btn-primary{display:none;}
    .hero{padding:56px 0 48px;}
    .hero-sub{font-size:15.5px;}
    .hero-stats{gap:24px;padding-top:22px;margin-top:28px;}
    .hero-stat-num{font-size:23px;}
    .section{padding:56px 0;}
    .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
    .tl-item{grid-template-columns:1fr;}
    .tl-date{border-right:0;border-bottom:1px solid var(--line);padding:20px 0 14px;display:flex;align-items:baseline;gap:10px;}
    .tl-date::after{display:none;}
    .tl-day{font-size:22px;}
    .tl-mon,.tl-year{margin-top:0;}
    .tl-body{padding:20px 0 26px;}
    .tl-card{padding:20px;}
    .tl-card h3{font-size:18px;}
    .metric-grid{grid-template-columns:1fr;}
    .rel-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .cta-band{padding:48px 0;}
    .cta-inner{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:519px){
    .hero h1{font-size:32px;}
    .hero-tags{gap:8px;}
    .chip{height:36px;padding:0 14px;font-size:13px;}
    .feat-body h3{font-size:20px;}
    .btn-line,.btn-primary{width:100%;justify-content:center;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
  }

/* roulang page: category2 */
:root{
  --brand:#0F3B36;
  --brand-dark:#0A2C28;
  --night:#0B1518;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --glow:#5FD3C6;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#11161A;
  --muted:#6E6A63;
  --line:#E3E0D9;
  --radius:4px;
  --radius-sm:2px;
  --shadow:0 8px 24px rgba(11,21,24,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.num,time,.tabular{font-family:"Inter","Noto Sans SC",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1024px){.container-x{padding:0 48px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
  backdrop-filter:blur(6px);
}
.site-header.is-scrolled{background:#fff;box-shadow:0 8px 24px rgba(11,21,24,.06)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{color:var(--accent);font-size:14px;line-height:1}
.main-nav{display:none}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
}
.nav-link{
  display:inline-block;padding:10px 12px;font-size:14.5px;color:#2C3237;position:relative;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-item{position:relative}
.mega{
  position:absolute;top:calc(100% + 12px);left:50%;
  width:min(760px,calc(100vw - 64px));
  transform:translate(-50%,6px);
  background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
  box-shadow:var(--shadow);padding:24px;
  opacity:0;visibility:hidden;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:1fr 1.15fr .95fr;gap:24px}
.mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:12px}
.mega-list li a,.mega-mini li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;padding:7px 0;color:#2C3237;border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.mega-list li a:hover,.mega-mini li a:hover{color:var(--accent);border-color:var(--line)}
.mega-list .num,.mega-mini .num{font-size:12px;color:var(--muted);white-space:nowrap}
.mega-mini li{display:flex;flex-direction:column}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.mega-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-card div{padding:12px 14px}
.mega-card strong{display:block;font-size:14px}
.mega-card span{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:4px}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media (min-width:1024px){.header-actions{margin-left:12px}}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{display:inline-flex}
@media (min-width:1024px){.menu-toggle{display:none}}
.header-cta{display:none}
@media (min-width:768px){.header-cta{display:inline-flex}}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;min-height:44px;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-primary .arrow{transition:transform .2s var(--ease)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:var(--brand)}
.btn-sm{padding:11px 18px;font-size:13.5px;min-height:40px}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--glow);color:var(--night)}

/* mega drawer (mobile) */
.mobile-drawer{
  position:fixed;top:72px;left:0;right:0;bottom:0;background:#fff;z-index:55;
  padding:24px 20px 48px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:700;margin:20px 0 8px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:14px 0;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--accent)}
@media (min-width:1024px){.mobile-drawer{display:none}}

/* ---------- hero ---------- */
.cat-hero{position:relative}
.cat-hero-band{
  position:relative;height:280px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center 38%;
}
.cat-hero-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,21,24,.90) 0%,rgba(11,21,24,.66) 48%,rgba(15,59,54,.58) 100%);
}
.cat-hero-band::before{
  content:"";position:absolute;inset:0;z-index:1;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:18px 18px;
}
.cat-hero-inner{position:relative;z-index:2;margin-top:-170px}
.cat-hero-grid{display:grid;grid-template-columns:1fr;gap:20px;align-items:start}
@media (min-width:1024px){.cat-hero-grid{grid-template-columns:1fr 320px;gap:24px}}
.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 26px;box-shadow:0 8px 24px rgba(11,21,24,.06);
}
@media (min-width:768px){.hero-card{padding:44px 40px}}
.hero-band-line{width:56px;height:2px;background:var(--accent);margin-bottom:20px}
h1{font-size:clamp(34px,4.2vw,56px);font-weight:800;line-height:1.08;letter-spacing:-.02em}
.hero-desc{margin-top:20px;font-size:16.5px;line-height:1.85;color:#333A3F;max-width:64ch}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tag{
  font-size:12px;letter-spacing:.06em;padding:6px 12px;border-radius:var(--radius-sm);
  border:1px solid var(--line);color:var(--muted);background:#FBFBF8;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{color:var(--brand);border-color:var(--glow);background:#fff}
.hero-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.panel-title{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:700}
.stat-list{margin-top:16px}
.stat-item{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.stat-item:last-child{border-bottom:0}
.stat-num{font-size:28px;font-weight:800;letter-spacing:-.02em}
.stat-num .unit{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px}
.stat-label{font-size:13px;color:var(--muted);text-align:right}

/* ---------- sections ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-tight{padding-top:0}
.section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:36px}
@media (min-width:768px){
  .section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
}
.eyebrow{font-size:12px;letter-spacing:.1em;font-weight:700;color:var(--accent)}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.22;letter-spacing:-.01em;margin-top:10px}
.section-sub{font-size:14.5px;color:var(--muted);max-width:52ch;line-height:1.8}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media (min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:48px}}
.split-media{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-media figcaption{padding:12px 16px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line)}
.split-body p{color:#333A3F;font-size:16px;line-height:1.85;margin-bottom:18px}
.split-point{border-top:1px solid var(--line);padding-top:18px;margin-top:18px}
.split-point h3{font-size:19px;font-weight:700;margin-bottom:8px}
.split-point p{margin:0;color:var(--muted);font-size:15px}

/* ---------- steps ---------- */
.steps{border-top:1px solid var(--line)}
.step{
  display:grid;grid-template-columns:1fr;gap:8px;
  padding:26px 4px;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease),padding-left .25s var(--ease);
}
@media (min-width:768px){.step{grid-template-columns:110px 1fr;gap:32px;align-items:start;padding:30px 12px}}
.step:hover{background:#FBF9F5}
.step-num{font-size:30px;font-weight:800;color:var(--accent);letter-spacing:-.02em;line-height:1}
.step h3{font-size:20px;font-weight:700;margin-bottom:8px}
.step p{color:var(--muted);font-size:15.5px;max-width:70ch}

/* ---------- matrix ---------- */
.matrix{
  display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
@media (min-width:640px){.matrix{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.matrix{grid-template-columns:repeat(4,1fr)}}
.matrix-cell{background:#fff;padding:26px 22px;transition:background .25s var(--ease)}
.matrix-cell:hover{background:#FBFBF8}
.matrix-cell .cell-k{font-size:12px;letter-spacing:.08em;color:var(--accent);font-weight:700}
.matrix-cell .cell-v{font-size:30px;font-weight:800;letter-spacing:-.02em;margin-top:12px;line-height:1.1}
.matrix-cell .cell-v small{display:block;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0;margin-top:6px}
.matrix-cell p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
  transition:color .2s var(--ease);
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"";flex:0 0 12px;width:12px;height:12px;margin-top:2px;
  background:
    linear-gradient(var(--accent),var(--accent)) center/12px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) center/1.5px 12px no-repeat;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-a{padding:0 4px 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:74ch}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card-media{overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  align-self:flex-start;font-size:12px;letter-spacing:.06em;padding:4px 10px;
  border-radius:var(--radius-sm);background:rgba(15,59,54,.06);color:var(--brand);font-weight:600;
}
.card h3{font-size:18px;font-weight:700;line-height:1.45}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.card-foot .go{color:var(--accent);font-weight:700}

/* ---------- cta ---------- */
.cta-band{
  position:relative;background:var(--night);color:#fff;border-radius:var(--radius);
  padding:36px 26px;display:flex;flex-direction:column;gap:24px;
}
@media (min-width:768px){.cta-band{padding:48px 44px;flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-band::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius);pointer-events:none;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:6px 6px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.72);font-size:15px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#F2F0EA;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;letter-spacing:-.01em}
.footer-about{margin-top:14px;font-size:14px;color:var(--muted);max-width:38ch;line-height:1.85}
.footer-title{font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer-links li{margin-bottom:10px;font-size:14px;color:var(--muted)}
.footer-links a{position:relative;display:inline-block;transition:color .2s var(--ease)}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:currentColor;
  transition:width .2s var(--ease);
}
.footer-links a:hover{color:var(--brand)}
.footer-links a:hover::after{width:100%}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--muted);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-note{display:flex;flex-wrap:wrap;gap:16px}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --brand:#0F3B36;
  --night:#0B1518;
  --accent:#FF6A2B;
  --glow:#5FD3C6;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#11161A;
  --muted:#6E6A63;
  --line:#E3E0D9;
  --r-card:4px;
  --r-badge:2px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-hover:0 8px 24px rgba(11,21,24,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;font-family:Inter,"Noto Sans SC",system-ui,sans-serif}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1024px){.container-x{padding:0 48px}}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:19px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{color:var(--accent);font-size:13px;line-height:1}
.main-nav{display:none}
.nav-item{position:relative}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 13px;font-size:15px;color:var(--muted);transition:color .2s var(--ease)}
.nav-link:hover{color:var(--brand)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:15px;height:2px;background:var(--accent)}
.mega{position:absolute;top:100%;left:-32px;width:780px;background:var(--card);border:1px solid var(--line);border-top:2px solid var(--accent);padding:24px;opacity:0;visibility:hidden;transform:translateY(6px);box-shadow:var(--shadow-hover);transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);z-index:90}
.nav-item:hover .mega,.nav-item:focus-within .mega,.nav-item.is-pinned .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1fr .9fr;gap:26px}
.mega-title{font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}
.mega-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 0;font-size:14px;border-bottom:1px solid var(--line);transition:color .2s var(--ease)}
.mega-list a:hover{color:var(--accent)}
.mega-list .num{font-size:12px;color:var(--muted)}
.mega-mini li{padding:6px 0;border-bottom:1px solid var(--line)}
.mega-mini a{display:block;font-size:14px;transition:color .2s var(--ease)}
.mega-mini a:hover{color:var(--accent)}
.mega-mini time{display:block;font-size:12px;color:var(--muted)}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--card);transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-card div{padding:10px 12px}
.mega-card strong{display:block;font-size:14px;font-weight:700}
.mega-card span{font-size:12px;color:var(--muted)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r-badge);color:var(--muted);transition:color .2s var(--ease),border-color .2s var(--ease)}
.icon-btn:hover{color:var(--accent);border-color:var(--glow)}
.btn-primary{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;border-radius:var(--r-badge);transition:background .22s var(--ease),transform .22s var(--ease)}
.btn-primary:hover{background:#e85c20}
.btn-primary .arw{transition:transform .22s var(--ease)}
.btn-primary:hover .arw{transform:translateX(4px)}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border:1px solid var(--line);border-radius:var(--r-badge);font-size:14px;font-weight:600;color:var(--brand);transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease)}
.btn-ghost:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.menu-toggle{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-badge);color:var(--brand)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--paper);padding:8px 0 18px}
.site-header.is-open .mobile-drawer{display:block}
.mobile-drawer a{display:block;padding:13px 2px;font-size:15px;border-bottom:1px solid var(--line);color:var(--ink)}
.mobile-drawer a.is-active{color:var(--accent);font-weight:700}
@media (max-width:639px){.header-cta{display:none}}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:2px;margin-left:18px}
  .menu-toggle{display:none}
  .mobile-drawer{display:none!important}
}

/* ---------- hero band ---------- */
.hero-band{position:relative;background:var(--night);color:#fff;overflow:hidden}
.band-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center 74%;opacity:.4}
.hero-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);background-size:24px 24px;opacity:.5;pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:40px;padding:64px 0 60px}
@media (min-width:1024px){.hero-inner{grid-template-columns:minmax(0,1fr) 336px;gap:56px;padding:88px 0 76px}}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--glow);border:1px solid rgba(95,211,198,.34);padding:5px 10px;border-radius:var(--r-badge)}
.hero-inner h1{font-size:clamp(34px,4.6vw,58px);font-weight:800;letter-spacing:-.02em;line-height:1.08;margin-top:22px}
.hero-lead{margin-top:20px;max-width:640px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.76)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-tags span{font-size:12px;letter-spacing:.06em;padding:5px 10px;border:1px solid rgba(255,255,255,.2);border-radius:var(--r-badge);color:rgba(255,255,255,.78)}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:34px}
.stat b{display:block;font-size:28px;font-weight:800;line-height:1.15;letter-spacing:-.02em}
.stat span{font-size:13px;color:rgba(255,255,255,.6)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-actions .btn-outline{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border:1px solid rgba(255,255,255,.28);border-radius:var(--r-badge);font-size:14px;font-weight:600;color:#fff;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease)}
.hero-actions .btn-outline:hover{background:#fff;color:var(--night);border-color:#fff}
.hero-side{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;align-self:start}
.hero-side img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-side .side-body{padding:18px 20px 20px}
.side-label{font-size:12px;letter-spacing:.08em;color:var(--muted)}
.side-body h2{font-size:18px;font-weight:700;margin-top:6px;line-height:1.45}
.side-list{margin-top:14px;border-top:1px solid var(--line)}
.side-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.side-list b{font-weight:700;color:var(--ink)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:92px 0}}
.section-dark{background:var(--night);color:#fff}
.sec-head{display:flex;flex-direction:column;gap:14px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:36px}
@media (min-width:768px){.sec-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:28px}}
.sec-head h2{font-size:clamp(24px,2.9vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.25}
.sec-head p{font-size:14px;color:var(--muted);max-width:540px}
.section-dark .sec-head{border-bottom-color:rgba(255,255,255,.16)}
.section-dark .sec-head p{color:rgba(255,255,255,.62)}

/* ---------- gallery 2x2 ---------- */
.gallery-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.gallery-grid{grid-template-columns:repeat(2,1fr);gap:28px}}
.g-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.g-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.g-item figure{overflow:hidden}
.g-item img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.g-item:hover img{transform:scale(1.03)}
.g-body{padding:20px 22px 24px}
.badge{display:inline-flex;align-items:center;font-size:12px;letter-spacing:.08em;padding:3px 9px;border:1px solid var(--line);border-radius:var(--r-badge);color:var(--muted)}
.badge-accent{color:var(--accent);border-color:rgba(255,106,43,.36);background:rgba(255,106,43,.06)}
.g-body h3{font-size:20px;font-weight:600;margin-top:12px;line-height:1.4}
.g-body p{font-size:15px;color:var(--muted);margin-top:10px}
.g-meta{display:flex;gap:18px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);letter-spacing:.04em}

/* ---------- data table ---------- */
.table-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow-x:auto}
table.data-table{width:100%;min-width:660px;border-collapse:collapse;font-size:15px}
.data-table th,.data-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.data-table thead th{background:var(--night);color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;border-bottom:0}
.data-table tbody tr{transition:background .2s var(--ease)}
.data-table tbody tr:hover{background:#FBFAF7}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td:first-child{color:var(--muted);font-size:14px}
.table-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* ---------- flow steps ---------- */
.flow{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.flow{grid-template-columns:repeat(3,1fr);gap:30px}}
.flow-step{border-top:2px solid var(--brand);padding-top:18px}
.flow-step .idx{font-size:28px;font-weight:800;color:var(--accent);line-height:1;letter-spacing:-.02em}
.flow-step h3{font-size:20px;font-weight:600;margin-top:14px}
.flow-step p{font-size:15px;color:var(--muted);margin-top:10px}
.flow-step ul{margin-top:14px}
.flow-step li{position:relative;padding-left:16px;font-size:14px;color:var(--muted);margin-bottom:6px}
.flow-step li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;background:var(--accent)}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;transition:color .2s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:24px;height:24px;display:grid;place-items:center;color:var(--accent);font-size:18px;line-height:1;transition:transform .2s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:860px}

/* ---------- related categories ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr);gap:28px}}
.rel-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.rel-card figure{overflow:hidden}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover img{transform:scale(1.03)}
.rel-body{padding:18px 20px 22px}
.rel-body strong{display:block;font-size:18px;font-weight:700;margin-top:10px}
.rel-body p{font-size:14px;color:var(--muted);margin-top:8px}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;font-weight:600;color:var(--brand)}
.rel-card:hover .rel-more{color:var(--accent)}

/* ---------- cta band ---------- */
.cta-band{position:relative;background:var(--night);color:#fff;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.1) 1px,transparent 1px);background-size:22px 22px;opacity:.45;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;gap:24px;padding:48px 0}
@media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding:58px 0}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-inner p{font-size:14px;color:rgba(255,255,255,.62);margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.share-btn{width:46px;height:46px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.22);border-radius:var(--r-badge);color:rgba(255,255,255,.8);transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.share-btn:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ---------- footer ---------- */
.site-footer{background:var(--card);border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800}
.footer-about{font-size:14px;color:var(--muted);margin-top:12px;max-width:380px}
.footer-title{font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}
.footer-links li{margin-bottom:9px;font-size:14px;color:var(--muted)}
.footer-links a{position:relative;transition:color .2s var(--ease)}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .2s var(--ease)}
.footer-links a:hover{color:var(--ink)}
.footer-links a:hover::after{width:100%}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted)}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-note{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- motion ---------- */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.reveal{animation:rise .6s var(--ease) both}
.reveal-2{animation-delay:.08s}
.reveal-3{animation-delay:.16s}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category4 */
:root{
  --brand:#0F3B36;
  --night:#0B1518;
  --accent:#FF6A2B;
  --accent-dark:#E85A1C;
  --glow:#5FD3C6;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --ink:#11161A;
  --muted:#6E6A63;
  --line:#E3E0D9;
  --radius:4px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-hover:0 8px 24px rgba(11,21,24,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
time{display:inline-block}
.num{font-family:"Inter","Noto Sans SC",system-ui,sans-serif;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:2px}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1024px){.container-x{padding:0 48px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,246,242,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:72px;flex-wrap:wrap;padding:8px 0}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);flex:0 0 auto}
.brand-mark{color:var(--accent);font-size:13px;line-height:1}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-link{
  position:relative;display:inline-block;padding:9px 12px;font-size:15px;color:#2B3236;
  white-space:nowrap;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.mega{
  position:absolute;left:-10px;top:calc(100% + 12px);width:780px;padding:22px;z-index:90;
  background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
  box-shadow:0 18px 40px rgba(11,21,24,.1);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 220px;gap:26px}
.mega-title{margin:0 0 10px;font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600}
.mega-list li a,.mega-mini li a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 0;font-size:14px;color:#2B3236;border-bottom:1px solid var(--line);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.mega-list li:last-child a,.mega-mini li:last-child a{border-bottom:0}
.mega-list li a:hover,.mega-mini li a:hover{color:var(--accent);padding-left:4px}
.mega-list .num,.mega-mini time{font-size:12px;color:var(--muted);white-space:nowrap}
.mega-card{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:box-shadow .25s var(--ease),transform .25s var(--ease)}
.mega-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-card div{padding:12px 14px}
.mega-card strong{display:block;font-size:15px;margin-bottom:4px}
.mega-card span{font-size:13px;color:var(--muted);line-height:1.6}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:2px;color:#2B3236;background:#fff;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{color:var(--accent);border-color:var(--accent)}
.icon-btn svg{width:18px;height:18px}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:2px;
  font-size:15px;font-weight:600;line-height:1;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-primary span,.btn-ghost span{display:inline-block;transition:transform .2s var(--ease)}
.btn-primary:hover span,.btn-ghost:hover span{transform:translateX(4px)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:76px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-plain{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--accent);font-weight:600;margin-bottom:12px}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
.section-lead{margin-top:12px;font-size:16px;color:var(--muted);max-width:680px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;background:var(--night);color:#F2F4F3;overflow:hidden}
.cat-hero .hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-3.webp);background-size:cover;background-position:center 38%;opacity:.32}
.cat-hero .hero-veil{position:absolute;inset:0;background:rgba(11,21,24,.72)}
.cat-hero .hero-inner{position:relative;padding:64px 0 60px}
@media (min-width:1024px){.cat-hero .hero-inner{padding:96px 0 88px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:8fr 4fr;gap:56px}}
.hero-label{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--glow);font-weight:600;margin-bottom:16px}
.cat-hero h1{font-size:clamp(34px,4.2vw,56px);font-weight:800;line-height:1.08;letter-spacing:-.02em;color:#fff}
.hero-sub{margin-top:18px;font-size:clamp(17px,1.6vw,20px);line-height:1.7;color:#DDE4E2;max-width:640px}
.hero-desc{margin-top:16px;font-size:15px;line-height:1.85;color:#A9B4B1;max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-tags .tag{border-color:rgba(255,255,255,.22);color:#DDE4E2}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.stat-item strong{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.02em;color:#fff}
.stat-item span{font-size:13px;color:#98A4A1}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);border:1px solid rgba(255,255,255,.14)}
.hero-figure .fig-no{position:absolute;top:14px;right:14px;background:#fff;color:var(--ink);font-size:12px;letter-spacing:.08em;padding:6px 10px;border-radius:2px;font-weight:600}
.fig-caption{margin-top:12px;font-size:12px;color:#8E9A97;letter-spacing:.04em}

/* ---------- 标签与徽章 ---------- */
.tag{display:inline-block;font-size:12px;letter-spacing:.08em;padding:5px 10px;border:1px solid var(--line);border-radius:2px;color:var(--muted);background:#fff}
.badge{display:inline-block;font-size:12px;letter-spacing:.06em;padding:4px 9px;border-radius:2px;background:rgba(15,59,54,.08);color:var(--brand);font-weight:600}

/* ---------- 精选主访谈 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.feature-grid{grid-template-columns:7fr 5fr;gap:48px}}
.card-entry{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.card-entry:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.entry-cover{display:block;overflow:hidden}
.entry-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease)}
.card-entry:hover .entry-cover img{transform:scale(1.03)}
.entry-body{padding:22px}
.entry-title{margin-top:12px;font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.35}
.entry-title a{background-image:linear-gradient(var(--brand),var(--brand));background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;transition:background-size .25s var(--ease)}
.entry-title a:hover{background-size:100% 1px}
.entry-summary{margin-top:10px;font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ---------- 条目行 ---------- */
.index-list{border-top:1px solid var(--line)}
.index-row{display:grid;grid-template-columns:44px 1fr 24px;align-items:start;gap:14px;padding:20px 12px;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.index-row:hover{background:rgba(15,59,54,.045)}
.row-no{font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.02em;padding-top:4px}
.row-title{font-size:17px;font-weight:600;line-height:1.5}
.row-summary{margin-top:6px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row-time{display:block;margin-top:8px;font-size:12px;color:var(--muted)}
.row-arrow{align-self:center;font-size:16px;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease)}
.index-row:hover .row-arrow{transform:translateX(4px);color:var(--accent)}

/* ---------- 人物卡 ---------- */
.person-list{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:1024px){.person-list{grid-template-columns:1fr 1fr;gap:22px}}
.person-card{
  display:flex;gap:20px;padding:22px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);
}
.person-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(15,59,54,.28)}
.person-avatar{flex:0 0 auto;width:84px;height:84px;border-radius:var(--radius);overflow:hidden;background:#EDEBE5}
.person-avatar img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.person-card:hover .person-avatar img{transform:scale(1.03)}
.person-body{min-width:0}
.person-quote{font-size:clamp(17px,1.8vw,20px);line-height:1.65;font-weight:500;color:var(--ink)}
.person-quote::before{content:"「";color:var(--accent)}
.person-quote::after{content:"」";color:var(--accent)}
.person-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.person-name{font-size:14px;font-weight:600;color:var(--brand)}
.person-role{font-size:13px;color:var(--muted)}

/* ---------- 访谈做法 ---------- */
.split-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:1024px){.split-grid{grid-template-columns:4fr 8fr;gap:56px}}
.split-left h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.split-left p{margin-top:14px;font-size:15px;color:var(--muted)}
.step-list{border-top:1px solid var(--line)}
.step-item{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.step-no{font-size:15px;font-weight:800;color:var(--accent);letter-spacing:.02em;padding-top:3px}
.step-item h3{font-size:19px;font-weight:600;line-height:1.4}
.step-item p{margin-top:8px;font-size:15px;color:var(--muted)}

/* ---------- FAQ ---------- */
.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;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:16px;font-weight:600;cursor:pointer;transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .2s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--accent);border-radius:1px}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:720px}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.rel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.rel-card:hover img{transform:scale(1.03)}
.rel-body{padding:18px 20px 20px}
.rel-body h3{font-size:18px;font-weight:700}
.rel-body p{margin-top:8px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;color:var(--brand);font-weight:600}
.rel-more span{transition:transform .2s var(--ease)}
.rel-card:hover .rel-more span{transform:translateX(4px)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--night);color:#F2F4F3;position:relative;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:4px 4px}
.cta-inner{display:flex;flex-direction:column;gap:24px;padding:44px 0}
@media (min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:52px 0}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-inner p{margin-top:8px;font-size:14px;color:#A9B4B1;max-width:560px}
.cta-icons{display:flex;gap:10px;flex-wrap:wrap}
.cta-icon{
  width:46px;height:46px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.2);border-radius:2px;color:#E6ECEA;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.cta-icon:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px)}
.cta-icon svg{width:20px;height:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-size:17px;font-weight:800}
.footer-about{margin-top:14px;font-size:14px;color:var(--muted);max-width:360px}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--muted);font-weight:600;margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-links span{font-size:14px;color:#2B3236;background-image:linear-gradient(var(--brand),var(--brand));background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;transition:background-size .25s var(--ease),color .2s var(--ease)}
.footer-links a:hover{color:var(--brand);background-size:100% 1px}
.footer-bottom{display:flex;flex-direction:column;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-note{display:flex;flex-wrap:wrap;gap:18px}

/* ---------- 响应式：导航 ---------- */
@media (max-width:1023px){
  .nav-wrap{gap:12px}
  .main-nav{order:3;width:100%;flex:1 0 100%;overflow-x:auto;gap:0;padding-bottom:4px;scrollbar-width:none}
  .main-nav::-webkit-scrollbar{display:none}
  .mega{display:none}
  .nav-link{padding:8px 10px;font-size:14px}
  .header-actions .search-btn{display:none}
  .header-actions{gap:8px}
}
@media (max-width:639px){
  .person-card{flex-direction:row;gap:14px;padding:18px}
  .person-avatar{width:64px;height:64px}
  .step-item{grid-template-columns:42px 1fr;gap:14px}
  .index-row{grid-template-columns:34px 1fr 18px;gap:10px;padding:18px 8px}
  .hero-stats{gap:14px 26px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}