/* roulang page: index */
:root{
  --brand-900:#0E4A41;
  --brand-700:#14655A;
  --brand-600:#1C7C6C;
  --brand-400:#4FA394;
  --brand-100:#E3F0EC;
  --sand-600:#B9703A;
  --sand-400:#DE9A5E;
  --sand-100:#F7EBDD;
  --accent:#A8442C;
  --bg:#FAF8F4;
  --bg-alt:#F1EDE5;
  --surface:#FFFFFF;
  --ink:#16211E;
  --ink-2:#4A5551;
  --ink-3:#7D8884;
  --line:#E4DED2;
  --line-2:#D6CFC0;
  --ok:#2F7A55;
  --warn:#B9703A;
  --err:#A8442C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,74,65,.06), 0 8px 22px rgba(14,74,65,.06);
  --sh-2:0 12px 32px rgba(14,74,65,.13);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,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:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-900);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;overflow-wrap:anywhere;}
p{margin:0;overflow-wrap:anywhere;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--surface);border-bottom:1px solid var(--line);}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(14,74,65,.08);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-900));
  color:#fff;font-family:var(--font-serif);font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;line-height:1.2;}
.brand-sub{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:6px;}
.search-box{
  position:relative;flex:1;max-width:400px;height:44px;
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r-md);
  padding:0 14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(28,124,108,.15);}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{flex:1;border:0;background:transparent;height:100%;outline:none;color:var(--ink);min-width:0;}
.search-box input::placeholder{color:var(--ink-3);}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:var(--r-md);
  background:var(--surface);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-bar{border-top:1px solid var(--line);background:var(--surface);}
.channel-inner{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity;}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border:1px solid var(--line-2);border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--ink-2);background:transparent;white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.pill:hover{background:var(--brand-100);color:var(--brand-900);border-color:var(--brand-400);}
.pill.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}
.pill.active:hover{background:var(--brand-700);color:#fff;}

.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 0 18px;}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:block;padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:last-child{border-bottom:0;}
.nav-drawer a.active{color:var(--brand-700);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-solid{background:var(--brand-600);color:#fff;border-color:var(--brand-600);}
.btn-solid:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-700);border-color:#fff;}
.btn-light:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

.ghost-link{
  font-size:14px;font-weight:600;color:var(--brand-700);position:relative;padding-bottom:2px;
}
.ghost-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-400);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.ghost-link:hover::after{transform:scaleX(1);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:1;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,55,48,.94) 0%,rgba(12,66,57,.86) 40%,rgba(250,248,244,.92) 76%,var(--bg) 100%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;padding:76px 24px 80px;}
.hero-copy{max-width:560px;}
.hero-eyebrow{
  display:inline-block;margin-bottom:16px;padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.hero h1{font-size:38px;line-height:1.28;color:#fff;letter-spacing:.2px;}
.hero-sub{margin-top:14px;font-size:17px;color:rgba(255,255,255,.86);max-width:460px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-chips li{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.92);font-size:13px;
}
.hero-chips strong{font-family:var(--font-serif);font-size:16px;color:#fff;}
.hero-card{
  background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  overflow:hidden;border:1px solid var(--line);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--brand-100);}
.hero-card-body{padding:18px 22px 20px;}
.hero-card-body h2{font-size:17px;margin-bottom:6px;}
.hero-card-body p{font-size:14px;color:var(--ink-3);line-height:1.7;}
.hero-card-meta{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;}

/* ---------- Sections ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.section-head h2{font-size:26px;}
.section-head .section-desc{margin-top:8px;font-size:15px;color:var(--ink-3);max-width:680px;}
.section-head .head-action{flex-shrink:0;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:var(--brand-100);color:var(--brand-700);
}
.badge-sand{background:var(--sand-100);color:var(--sand-600);}
.badge-accent{background:var(--accent);color:#fff;}

/* ---------- Catalog ---------- */
.catalog-list{border-top:1px solid var(--line);}
.catalog-row{
  position:relative;display:flex;align-items:center;gap:26px;
  padding:22px 18px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.catalog-row::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:var(--brand-600);transform:scaleY(0);transition:transform .18s ease;
}
.catalog-row:hover{background:var(--brand-100);}
.catalog-row:hover::before{transform:scaleY(1);}
.catalog-num{
  font-family:var(--font-serif);font-size:30px;color:var(--ink-3);min-width:66px;
  font-variant-numeric:tabular-nums;transition:color .18s ease;
}
.catalog-row:hover .catalog-num{color:var(--brand-600);}
.catalog-body{flex:1;min-width:0;}
.catalog-body h3{font-size:19px;margin-bottom:4px;transition:color .18s ease;}
.catalog-row:hover .catalog-body h3{color:var(--brand-700);}
.catalog-body p{font-size:14px;color:var(--ink-3);line-height:1.7;}
.catalog-arrow{
  flex-shrink:0;width:44px;height:44px;border-radius:var(--r-pill);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-size:16px;transition:transform .18s ease,background .18s ease;
}
.catalog-row:hover .catalog-arrow{transform:translateX(4px);background:#fff;}

/* ---------- Feature ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card:hover .card-title{color:var(--brand-700);}
.card-thumb{position:relative;background:var(--brand-100);overflow:hidden;display:block;}
.card-thumb img{width:100%;height:100%;object-fit:cover;}
.ratio-16-9{aspect-ratio:16/9;}
.ratio-3-2{aspect-ratio:3/2;}
.ratio-4-3{aspect-ratio:4/3;}
.card-badge{position:absolute;left:14px;top:14px;}
.card-body{padding:20px 22px 22px;}
.card-title{font-size:19px;margin-bottom:8px;transition:color .18s ease;}
.card-text{font-size:14px;color:var(--ink-3);line-height:1.75;}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:14px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.card-link{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.card-link i{transition:transform .18s ease;}
.card:hover .card-link i{transform:translateX(4px);}
.feature-side{display:grid;gap:24px;}

/* ---------- Latest / CMS ---------- */
.latest-layout{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:18px;}
.news-card{
  display:flex;gap:18px;padding:16px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-400);}
.news-thumb{flex:0 0 200px;width:200px;height:125px;border-radius:var(--r-md);overflow:hidden;background:var(--brand-100);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-main{flex:1;min-width:0;display:flex;flex-direction:column;}
.news-top{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.news-title{font-size:18px;line-height:1.45;margin-bottom:6px;transition:color .18s ease;}
.news-card:hover .news-title{color:var(--brand-700);}
.news-summary{font-size:14px;color:var(--ink-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.news-foot .more{font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:var(--surface);border:1px dashed var(--line-2);border-radius:var(--r-lg);
}
.empty-state i{font-size:30px;color:var(--brand-400);}
.empty-state p{font-size:15px;color:var(--ink-3);}

.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:20px 22px;}
.side-card + .side-card{margin-top:22px;}
.side-card h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.rank-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);}
.rank-list li:last-child{border-bottom:0;}
.rank-list .rk{font-family:var(--font-serif);font-size:16px;color:var(--brand-400);min-width:22px;font-variant-numeric:tabular-nums;}
.rank-list a{font-size:14px;line-height:1.6;color:var(--ink-2);}
.rank-list a:hover{color:var(--brand-700);}

/* ---------- Recommend ---------- */
.reco-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.reco-card .card-body{padding:16px 18px 18px;}
.reco-card .card-title{font-size:16px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--brand-100);border:1px solid var(--brand-400);border-radius:var(--r-lg);
  padding:32px 34px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.cta-band:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.cta-band h2{font-size:23px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-2);}
.cta-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-round{
  width:44px;height:44px;border-radius:var(--r-pill);border:1.5px solid var(--brand-600);
  background:transparent;color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease;
}
.icon-round:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);margin-bottom:14px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.faq-item.open{border-color:var(--brand-400);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;cursor:pointer;padding:20px 22px;position:relative;
}
.faq-q .idx{font-family:var(--font-serif);font-size:17px;color:var(--ink-3);min-width:28px;font-variant-numeric:tabular-nums;}
.faq-q .qtext{flex:1;font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;transition:color .18s ease;}
.faq-q:hover .qtext{color:var(--brand-700);}
.faq-q .tog{flex-shrink:0;width:30px;height:30px;border-radius:var(--r-pill);border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;color:var(--brand-700);transition:transform .22s ease,background .18s ease;}
.faq-item.open .tog{transform:rotate(180deg);background:var(--brand-100);border-color:var(--brand-400);}
.faq-a{display:none;padding:0 22px 22px 66px;position:relative;font-size:15px;color:var(--ink-2);line-height:1.85;}
.faq-a p + p{margin-top:10px;}
.faq-item.open .faq-a{display:block;}
.faq-item.open .faq-a::before{content:"";position:absolute;left:22px;top:0;bottom:22px;width:3px;border-radius:3px;background:var(--brand-600);}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:60px 24px 44px;}
.brand-light .brand-text{color:#fff;}
.brand-light .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px;}
.search-box-dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);margin-top:18px;max-width:320px;}
.search-box-dark input{color:#fff;}
.search-box-dark input::placeholder{color:rgba(255,255,255,.55);}
.search-box-dark i{color:rgba(255,255,255,.6);}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.74);}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:56px 24px 60px;}
  .hero-bg::after{background:linear-gradient(180deg,rgba(10,55,48,.93) 0%,rgba(12,66,57,.85) 55%,rgba(18,80,69,.9) 100%);}
  .hero-copy{max-width:640px;}
  .hero-card{max-width:640px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-columns:1fr 1fr;}
  .latest-layout{grid-template-columns:1fr;}
  .reco-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .channel-bar{display:none;}
  .topbar-inner{height:56px;}
  .section{padding:56px 0;}
  .hero h1{font-size:31px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{flex-wrap:wrap;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .feature-side{grid-template-columns:1fr;}
  .news-card{flex-direction:column;}
  .news-thumb{flex:none;width:100%;height:auto;aspect-ratio:16/9;}
  .catalog-row{gap:16px;padding:18px 12px;}
  .catalog-num{font-size:24px;min-width:44px;}
  .catalog-body h3{font-size:17px;}
  .faq-a{padding-left:22px;}
  .faq-item.open .faq-a::before{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:575px){
  .hero h1{font-size:27px;}
  .hero-sub{font-size:16px;}
  .btn{height:44px;padding:0 18px;}
  .hero-cta .btn{width:100%;}
  .reco-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px 20px;}
  .card-body{padding:16px;}
  .brand-text{font-size:16px;}
  .brand-sub{display:none;}
}

/* roulang page: article */
:root{
  --brand-900:#0E4A41; --brand-700:#14655A; --brand-600:#1C7C6C; --brand-400:#4FA394; --brand-100:#E3F0EC;
  --sand-600:#B9703A; --sand-400:#DE9A5E; --sand-100:#F7EBDD;
  --accent:#A8442C;
  --bg:#FAF8F4; --bg-alt:#F1EDE5; --surface:#FFFFFF;
  --ink:#16211E; --ink-2:#4A5551; --ink-3:#7D8884;
  --line:#E4DED2; --line-2:#D6CFC0;
  --ok:#2F7A55; --warn:#B9703A; --err:#A8442C;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,74,65,.06), 0 8px 22px rgba(14,74,65,.06);
  --sh-2:0 12px 32px rgba(14,74,65,.13);
  --container:1200px;
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); 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:1.75; letter-spacing:.01em;
  word-break:normal; overflow-wrap:anywhere;
}
img{max-width:100%; height:auto; display:block}
a{color:var(--brand-700); text-decoration:none; transition:color var(--t), border-color var(--t), background var(--t)}
a:hover{color:var(--brand-600)}
h1,h2,h3,h4{font-family:"Noto Serif SC","Noto Sans SC",serif; color:var(--ink); margin:0; line-height:1.35}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em; padding-left:1.2em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600); outline-offset:2px; border-radius:4px}
.container{width:100%; max-width:var(--container); margin:0 auto; padding:0 20px}
@media (min-width:1400px){ .container{max-width:1280px} }

/* ---------- header ---------- */
.site-header{position:sticky; top:0; z-index:1040; background:var(--surface); border-bottom:1px solid var(--line)}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(14,74,65,.08)}
.topbar{background:var(--surface)}
.topbar-inner{display:flex; align-items:center; gap:18px; height:64px}
.brand{display:inline-flex; align-items:center; gap:10px; color:var(--ink); flex:0 0 auto}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:34px; height:34px; border-radius:10px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-900));
  color:#fff; font-weight:700; font-family:"Noto Serif SC",serif; font-size:17px;
}
.brand-text{font-weight:700; font-size:19px; letter-spacing:.02em}
.brand-sub{font-size:12px; font-weight:500; color:var(--ink-3); margin-left:6px; letter-spacing:.04em}
.search-box{
  flex:1 1 auto; max-width:400px; position:relative; display:flex; align-items:center;
  height:44px; border:1px solid var(--line-2); border-radius:var(--r-md); background:var(--bg);
  padding:0 14px; transition:border-color var(--t), box-shadow var(--t), background var(--t);
}
.search-box i{color:var(--ink-3); font-size:14px}
.search-box input{
  border:0; background:transparent; outline:none; width:100%; margin-left:10px;
  font-size:15px; color:var(--ink); height:100%;
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{border-color:var(--brand-600); background:#fff; box-shadow:0 0 0 4px rgba(28,124,108,.15)}
.topbar-actions{display:flex; align-items:center; gap:10px; margin-left:auto}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:46px; padding:0 22px; border-radius:var(--r-md); font-size:15px; font-weight:600;
  border:1.5px solid transparent; cursor:pointer; transition:all var(--t); text-align:center;
}
.btn-primary{background:var(--brand-600); color:#fff; border-color:var(--brand-600)}
.btn-primary:hover{background:var(--brand-700); border-color:var(--brand-700); color:#fff; transform:translateY(-1px)}
.btn-outline{background:transparent; color:var(--brand-700); border-color:var(--brand-600)}
.btn-outline:hover{background:var(--brand-100); color:var(--brand-700)}
.btn-ghost{background:transparent; color:var(--brand-700); border-color:transparent; padding:0 6px; height:auto}
.btn-ghost span{border-bottom:2px solid var(--brand-400); padding-bottom:2px; transition:border-color var(--t)}
.btn-ghost:hover span{border-color:var(--brand-700)}
.btn-sm{height:38px; padding:0 16px; font-size:14px}
.btn-block{width:100%}
.nav-toggle{
  display:none; width:44px; height:44px; border:1px solid var(--line-2); background:#fff;
  border-radius:var(--r-md); color:var(--brand-700); font-size:17px; cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-100)}
.channel-bar{background:var(--bg-alt); border-top:1px solid var(--line)}
.channel-inner{display:flex; align-items:center; gap:10px; height:48px; overflow-x:auto; scrollbar-width:none; -ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto; display:inline-flex; align-items:center; height:34px; padding:0 16px;
  border-radius:var(--r-pill); border:1px solid var(--line-2); color:var(--ink-2);
  font-size:14px; font-weight:500; background:transparent; white-space:nowrap; transition:all var(--t);
}
.pill:hover{background:var(--brand-100); border-color:var(--brand-400); color:var(--brand-700)}
.pill.active{background:var(--brand-600); border-color:var(--brand-600); color:#fff}
.pill.active:hover{background:var(--brand-700); border-color:var(--brand-700); color:#fff}
.mobile-drawer{display:none; border-top:1px solid var(--line); background:var(--surface); padding:12px 0 18px}
.mobile-drawer a{
  display:block; padding:13px 4px; font-size:16px; font-weight:600; color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.active{color:var(--brand-700)}
.mobile-drawer.open{display:block}

/* ---------- breadcrumb ---------- */
.crumb-wrap{padding:20px 0 0}
.crumb{
  display:inline-flex; align-items:center; flex-wrap:wrap; gap:8px;
  background:var(--brand-100); border-radius:var(--r-pill); padding:7px 16px; font-size:13px;
}
.crumb a{color:var(--brand-700); font-weight:500}
.crumb a:hover{text-decoration:underline; text-underline-offset:3px}
.crumb .sep{color:var(--brand-400)}
.crumb .now{color:var(--ink-2); max-width:320px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:26px 0 30px; border-bottom:1px solid var(--line)}
.article-head .tagline{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px}
.badge{
  display:inline-flex; align-items:center; gap:6px; height:26px; padding:0 12px;
  border-radius:var(--r-pill); font-size:12px; font-weight:600; letter-spacing:.02em;
}
.badge-brand{background:var(--brand-100); color:var(--brand-700)}
.badge-sand{background:var(--sand-100); color:var(--sand-600)}
.badge-accent{background:var(--accent); color:#fff}
.article-title{font-size:38px; line-height:1.28; font-weight:700; max-width:900px}
.article-lead{margin-top:14px; max-width:820px; color:var(--ink-2); font-size:16.5px; line-height:1.85}
.article-meta{display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-top:18px; font-size:13.5px; color:var(--ink-3)}
.article-meta .dot{color:var(--line-2)}
.article-meta i{color:var(--brand-400); margin-right:5px}

/* ---------- layout ---------- */
.layout{display:grid; grid-template-columns:minmax(0,1fr); gap:36px; padding:44px 0 64px}
@media (min-width:1200px){ .layout{grid-template-columns:minmax(0,1fr) 300px} }
.article-main{min-width:0}
.article-body{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--sh-1); padding:38px 40px 30px;
}
@media (max-width:767px){ .article-body{padding:24px 20px} }
.article-body h2{font-size:27px; margin:1.7em 0 .6em; padding-left:14px; border-left:4px solid var(--brand-600)}
.article-body h3{font-size:20px; margin:1.5em 0 .5em}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body p{font-size:16.5px; line-height:1.9; color:var(--ink-2); margin:0 0 1em}
.article-body strong{color:var(--ink)}
.article-body ul,.article-body ol{padding-left:0; list-style:none; margin:0 0 1.2em}
.article-body ul>li,.article-body ol>li{position:relative; padding-left:22px; margin-bottom:.55em; font-size:16.5px; line-height:1.85; color:var(--ink-2)}
.article-body ul>li::before{content:""; position:absolute; left:2px; top:12px; width:8px; height:8px; border-radius:2px; background:var(--brand-400)}
.article-body ol{counter-reset:oli}
.article-body ol>li{counter-increment:oli}
.article-body ol>li::before{
  content:counter(oli); position:absolute; left:0; top:1px; font-family:"Noto Serif SC",serif;
  font-size:14px; font-weight:700; color:var(--brand-600);
}
.article-body blockquote{
  margin:1.4em 0; padding:16px 20px; background:var(--brand-100); border-left:3px solid var(--brand-600);
  border-radius:0 var(--r-md) var(--r-md) 0; color:var(--ink-2); font-size:16px; line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md); margin:1.2em 0 .6em; width:100%}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px; color:var(--ink-3); text-align:center; margin-top:8px}
.article-body table{width:100%; border-collapse:collapse; margin:1.4em 0; font-size:15px}
.article-body th,.article-body td{border:0; border-bottom:1px solid var(--line); padding:12px 14px; text-align:left}
.article-body th{background:var(--brand-100); color:var(--brand-700); font-weight:600}
.article-body tr:hover td{background:var(--bg-alt)}
.article-body hr{border:0; border-top:1px solid var(--line); margin:2.2em 0}
.article-body a{font-weight:500; border-bottom:1px solid rgba(28,124,108,.4)}
.article-body a:hover{border-bottom-color:var(--brand-700)}
.article-body code{background:var(--bg-alt); padding:2px 6px; border-radius:var(--r-sm); font-size:14px}

.empty-state{
  background:var(--surface); border:1px dashed var(--line-2); border-radius:var(--r-lg);
  padding:56px 28px; text-align:center;
}
.empty-state i{font-size:34px; color:var(--brand-400)}
.empty-state h2{font-size:22px; margin:16px 0 8px}
.empty-state p{color:var(--ink-3); margin-bottom:20px}

/* ---------- sidebar ---------- */
.sidebar{display:flex; flex-direction:column; gap:20px}
@media (min-width:1200px){ .sidebar{position:sticky; top:132px; align-self:start} }
.side-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); box-shadow:var(--sh-1); padding:20px}
.side-card h3{font-size:16px; display:flex; align-items:center; gap:8px; margin-bottom:14px}
.side-card h3 i{color:var(--brand-600); font-size:14px}
.toc{list-style:none; margin:0; padding:0; counter-reset:toc}
.toc li{margin-bottom:2px}
.toc a{
  display:block; padding:8px 10px; border-radius:var(--r-sm); font-size:14px; color:var(--ink-2);
  border-left:2px solid transparent; transition:all var(--t);
}
.toc a:hover{background:var(--brand-100); color:var(--brand-700); border-left-color:var(--brand-400)}
.toc a.lvl-3{padding-left:22px; font-size:13.5px; color:var(--ink-3)}
.reco-list{list-style:none; margin:0; padding:0}
.reco-list li{padding:12px 0; border-bottom:1px solid var(--line)}
.reco-list li:last-child{border-bottom:0; padding-bottom:0}
.reco-list a{font-size:14.5px; font-weight:500; color:var(--ink); display:block; line-height:1.65}
.reco-list a:hover{color:var(--brand-700)}
.reco-list .meta{font-size:12.5px; color:var(--ink-3); margin-top:4px}
.side-note{background:var(--brand-900); color:#D9E8E3; border:0}
.side-note h3{color:#fff}
.side-note p{font-size:14px; line-height:1.8; color:#BFD8D1; margin-bottom:16px}
.side-note .btn-outline{color:#fff; border-color:rgba(255,255,255,.55)}
.side-note .btn-outline:hover{background:rgba(255,255,255,.12); color:#fff}

/* ---------- sections ---------- */
.section{padding:64px 0}
.section-alt{background:var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:26px}
.section-head h2{font-size:26px}
.section-head .sub{font-size:14px; color:var(--ink-3); margin-top:6px}
.grid-3{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px}
@media (max-width:991px){ .grid-3{grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px} }
@media (max-width:575px){ .grid-3{grid-template-columns:1fr; gap:14px} }
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--sh-1); overflow:hidden; display:flex; flex-direction:column;
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.card:hover{transform:translateY(-2px); box-shadow:var(--sh-2); border-color:var(--line-2)}
.card:hover .card-title{color:var(--brand-700)}
.card-media{position:relative; aspect-ratio:16/9; background:var(--brand-100); overflow:hidden}
.card-media img{width:100%; height:100%; object-fit:cover}
.card-media .float-badge{position:absolute; left:12px; top:12px}
.card-body{padding:20px; display:flex; flex-direction:column; gap:10px; flex:1}
.card-title{font-size:18px; line-height:1.5; transition:color var(--t)}
.card-text{font-size:14.5px; color:var(--ink-2); line-height:1.8; margin:0;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}
.card-foot{margin-top:auto; display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--ink-3)}
.card-foot i{transition:transform var(--t)}
.card:hover .card-foot i{transform:translateX(4px); color:var(--brand-600)}

/* cta strip */
.cta-strip{
  background:var(--brand-100); border:1px solid var(--brand-400); border-radius:var(--r-lg);
  padding:28px 30px; display:flex; align-items:center; justify-content:space-between; gap:24px;
  transition:transform var(--t), box-shadow var(--t);
}
.cta-strip:hover{transform:translateY(-2px); box-shadow:var(--sh-2)}
.cta-strip h3{font-size:21px; margin-bottom:6px}
.cta-strip p{margin:0; color:var(--ink-2); font-size:14.5px}
.cta-actions{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
.icon-btn{
  width:44px; height:44px; border-radius:var(--r-pill); border:1.5px solid var(--brand-600);
  background:#fff; color:var(--brand-700); display:grid; place-items:center; cursor:pointer; transition:all var(--t);
}
.icon-btn:hover{background:var(--brand-600); color:#fff; transform:translateY(-1px)}
@media (max-width:767px){ .cta-strip{flex-direction:column; align-items:flex-start; padding:22px} }

/* faq */
.faq-list{display:flex; flex-direction:column; gap:12px}
.faq-item{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; transition:border-color var(--t), box-shadow var(--t)}
.faq-item.open{border-color:var(--brand-400); box-shadow:var(--sh-1)}
.faq-q{
  width:100%; display:flex; align-items:center; gap:14px; padding:18px 20px; background:transparent;
  border:0; cursor:pointer; text-align:left; font-size:16px; font-weight:600; color:var(--ink);
}
.faq-q .num{font-family:"Noto Serif SC",serif; color:var(--brand-400); font-size:15px; flex:0 0 auto}
.faq-q .qi{margin-left:auto; color:var(--brand-600); transition:transform var(--t); flex:0 0 auto}
.faq-item.open .qi{transform:rotate(180deg)}
.faq-item.open .faq-q{border-left:3px solid var(--brand-600); padding-left:17px}
.faq-a{display:none; padding:0 20px 20px 54px; color:var(--ink-2); font-size:15px; line-height:1.9}
.faq-item.open .faq-a{display:block}
@media (max-width:575px){ .faq-a{padding:0 18px 18px 18px} }

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900); color:#C7DCD6; margin-top:0}
.footer-grid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:32px; padding:60px 0 40px}
@media (max-width:991px){ .footer-grid{grid-template-columns:1fr 1fr; gap:28px; padding:44px 0 30px} }
@media (max-width:575px){ .footer-grid{grid-template-columns:1fr; gap:24px} }
.brand-light{color:#fff}
.brand-light .brand-text{color:#fff}
.brand-light .brand-sub{color:#8FB6AD}
.footer-brand p{font-size:14px; line-height:1.85; color:#A9C6BF; margin:16px 0 18px; max-width:340px}
.search-box-dark{background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.22); max-width:320px}
.search-box-dark i{color:#8FB6AD}
.search-box-dark input{color:#fff}
.search-box-dark input::placeholder{color:#8FB6AD}
.search-box-dark:focus-within{background:rgba(255,255,255,.14); border-color:var(--brand-400); box-shadow:0 0 0 4px rgba(79,163,148,.2)}
.footer-col h3{font-size:15px; color:#fff; margin-bottom:16px; font-family:"Noto Sans SC",sans-serif}
.footer-col ul{list-style:none; margin:0; padding:0}
.footer-col li{margin-bottom:11px; font-size:14px; color:#A9C6BF}
.footer-col a{color:#C7DCD6; font-size:14px}
.footer-col a:hover{color:#fff; text-decoration:underline; text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; padding:18px 20px; font-size:13px; color:#8FB6AD}

/* back to top */
.to-top{
  position:fixed; right:22px; bottom:24px; width:46px; height:46px; border-radius:var(--r-pill);
  background:var(--brand-600); color:#fff; border:0; display:grid; place-items:center; cursor:pointer;
  box-shadow:var(--sh-2); opacity:0; visibility:hidden; transition:all var(--t); z-index:1030;
}
.to-top.show{opacity:1; visibility:visible}
.to-top:hover{background:var(--brand-700); transform:translateY(-2px)}

@media (max-width:767px){
  .topbar-inner{height:56px; gap:12px}
  .brand-text{font-size:16px}
  .brand-sub{display:none}
  .search-box{display:none}
  .nav-toggle{display:grid; place-items:center}
  .channel-bar{display:none}
  .article-title{font-size:28px}
  .article-head{padding:20px 0 24px}
  .section{padding:40px 0}
  .section-head h2{font-size:22px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0E4A41;
  --brand-700:#14655A;
  --brand-600:#1C7C6C;
  --brand-400:#4FA394;
  --brand-100:#E3F0EC;
  --sand-600:#B9703A;
  --sand-400:#DE9A5E;
  --sand-100:#F7EBDD;
  --accent:#A8442C;
  --bg:#FAF8F4;
  --bg-alt:#F1EDE5;
  --surface:#FFFFFF;
  --ink:#16211E;
  --ink-2:#4A5551;
  --ink-3:#7D8884;
  --line:#E4DED2;
  --line-2:#D6CFC0;
  --ok:#2F7A55;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,74,65,.06),0 8px 22px rgba(14,74,65,.06);
  --sh-2:0 12px 32px rgba(14,74,65,.13);
  --container:1200px;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-wrap:anywhere;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out,transform .18s ease-out;}
a:hover{color:var(--brand-900);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.32;letter-spacing:.005em;}
p{margin:0;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 顶部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(14,74,65,.08);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand-600),var(--brand-900));
  color:#fff;font-family:var(--serif);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-weight:500;font-size:13px;color:var(--ink-3);margin-left:4px;}
.brand-light .brand-text{color:#F4F1E9;}
.brand-light .brand-sub{color:rgba(244,241,233,.6);}

.search-box{
  flex:0 1 400px;
  min-width:200px;
  display:flex;align-items:center;gap:10px;
  height:44px;
  padding:0 16px;
  background:var(--surface);
  border:1px solid var(--line-2);
  border-radius:var(--r-md);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{
  flex:1;border:0;background:none;outline:none;height:100%;
  font-size:15px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(28,124,108,.15);}

.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}

.btn-solid,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-solid{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1);}
.btn-solid:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-line{border:1.5px solid var(--brand-600);color:var(--brand-700);background:transparent;}
.btn-line:hover{background:var(--brand-100);color:var(--brand-900);}
.btn-ghost{color:var(--brand-700);padding:0 4px;height:auto;}
.btn-ghost span{border-bottom:2px solid rgba(79,163,148,.45);padding-bottom:2px;transition:border-color .18s ease-out;}
.btn-ghost:hover span{border-color:var(--brand-600);}

.burger{
  display:none;
  width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line-2);background:var(--surface);
  color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;
}
.burger:hover{background:var(--brand-100);border-color:var(--brand-400);}

.channel-bar{border-top:1px solid var(--line);background:var(--bg);}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:48px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;align-items:center;
  height:32px;padding:0 15px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-2);
  font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.pill:hover{background:var(--brand-100);border-color:var(--brand-400);color:var(--brand-900);}
.pill.active{background:var(--brand-600);border-color:var(--brand-600);color:#FBF9F4;font-weight:600;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,33,30,.45);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--bg);border-left:1px solid var(--line);
  z-index:1060;padding:20px;
  transform:translateX(100%);
  transition:transform .24s ease-out;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.drawer-close:hover{background:var(--brand-100);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;padding-top:14px;}
.drawer-nav a{
  padding:14px 12px;border-radius:var(--r-md);
  font-size:17px;font-weight:600;color:var(--ink);
}
.drawer-nav a:hover{background:var(--brand-100);color:var(--brand-900);}
.drawer-nav a.active{background:var(--brand-600);color:#FBF9F4;}
.drawer .search-box{margin-top:18px;flex:1 1 auto;min-width:0;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:34px 0 36px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(250,248,244,.94),rgba(250,248,244,.99)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:16px;flex-wrap:wrap;}
.crumb a{
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:var(--r-pill);
  padding:4px 12px;
  font-weight:500;
}
.crumb a:hover{background:var(--brand-600);color:#FBF9F4;}
.crumb i{font-size:10px;color:var(--ink-3);}
.crumb .current{color:var(--ink-2);font-weight:600;}

.page-head h1{
  font-size:38px;
  line-height:1.26;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.page-head h1 em{
  font-style:normal;
  color:var(--brand-700);
  font-family:var(--serif);
}
.lead-line{
  font-size:16.5px;
  color:var(--ink-2);
  max-width:760px;
  line-height:1.8;
}
.meta-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
}
.chip i{color:var(--brand-600);font-size:12px;}
.chip strong{color:var(--brand-900);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:26px;}
.section-head p{color:var(--ink-3);font-size:14px;margin-top:6px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-700);text-transform:uppercase;
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand-400);}

/* ---------- 档案分栏 ---------- */
.archive-grid{
  display:grid;
  grid-template-columns:minmax(240px,26%) 1fr;
  gap:36px;
  align-items:start;
}
.index-card{
  position:sticky;
  top:132px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:22px 20px;
}
.index-card h2{font-size:15px;letter-spacing:.06em;color:var(--ink-2);font-weight:700;margin-bottom:14px;}
.index-list{display:flex;flex-direction:column;}
.index-list li a{
  display:flex;align-items:baseline;gap:10px;
  padding:11px 10px;
  border-radius:var(--r-sm);
  font-size:14.5px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.index-list li a .num{
  font-family:var(--serif);
  font-size:13px;color:var(--brand-400);font-weight:700;
  font-variant-numeric:tabular-nums;
}
.index-list li a:hover{background:var(--brand-100);color:var(--brand-900);border-left-color:var(--brand-600);}
.index-list li a.on{background:var(--brand-100);color:var(--brand-900);border-left-color:var(--brand-600);font-weight:600;}
.index-count{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}

.stream-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding-bottom:14px;border-bottom:1px solid var(--line);
  margin-bottom:6px;
}
.stream-head h2{font-size:21px;}
.stream-head span{font-size:13px;color:var(--ink-3);}

.entry-row{
  position:relative;
  display:grid;
  grid-template-columns:200px 1fr;
  gap:22px;
  padding:24px 20px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.entry-row::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--brand-600);border-radius:3px;
  transform:scaleY(0);transition:transform .18s ease-out;
}
.entry-row:hover{background:var(--brand-100);}
.entry-row:hover::before{transform:scaleY(1);}
.entry-thumb{
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--brand-100);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.entry-row:hover .entry-thumb img{transform:scale(1.04);}
.entry-body h3{font-size:19px;margin-bottom:8px;}
.entry-body h3 a{color:var(--ink);}
.entry-body h3 a:hover{color:var(--brand-700);}
.entry-body p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.entry-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:12px;font-size:13px;color:var(--ink-3);}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;
}
.badge-sand{background:var(--sand-100);color:var(--sand-600);}
.badge-accent{background:var(--accent);color:#fff;}

/* ---------- 四件确认 ---------- */
.points-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center;}
.points-figure{margin:0;}
.points-figure .frame{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
  background:var(--brand-100);
}
.points-figure img{width:100%;height:100%;object-fit:cover;}
.points-figure figcaption{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7;}
.points-body h2{font-size:26px;margin-bottom:12px;}
.points-body > p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px;}
.num-list{display:flex;flex-direction:column;gap:2px;}
.num-list li{
  display:grid;grid-template-columns:44px 1fr;gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.num-list li:last-child{border-bottom:0;}
.num-list .n{
  font-family:var(--serif);font-size:22px;font-weight:700;
  color:var(--brand-400);font-variant-numeric:tabular-nums;line-height:1.2;
}
.num-list h3{font-size:17px;margin-bottom:4px;}
.num-list p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- 步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px 20px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-400);}
.step-card .s-index{
  font-family:var(--serif);font-size:28px;font-weight:700;
  color:var(--brand-100);
  -webkit-text-stroke:1px var(--brand-400);
  line-height:1;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:16.5px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.step-card::after{
  content:"";position:absolute;top:44px;right:-11px;width:11px;height:1px;background:var(--line-2);
}
.step-card:last-child::after{display:none;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:var(--line-2);
}
.tl-item{position:relative;padding:0 0 26px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;
  width:11px;height:11px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-400);
}
.tl-item:hover::before{background:var(--brand-600);border-color:var(--brand-600);}
.tl-date{
  font-family:var(--serif);font-size:13px;font-weight:700;
  color:var(--sand-600);font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.tl-item h3{font-size:17px;margin:4px 0 6px;}
.tl-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75;max-width:720px;}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.scene-card{
  display:flex;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.scene-icon{
  flex:0 0 46px;width:46px;height:46px;border-radius:var(--r-md);
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.scene-card h3{font-size:17px;margin-bottom:6px;}
.scene-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:var(--brand-400);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  position:relative;
}
.faq-q .q-num{
  font-family:var(--serif);font-size:14px;font-weight:700;
  color:var(--brand-400);font-variant-numeric:tabular-nums;flex:0 0 26px;
}
.faq-q .q-txt{flex:1;}
.faq-q .q-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-2);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .24s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.faq-item.open .faq-q .q-icon{transform:rotate(45deg);background:var(--brand-600);color:#fff;border-color:var(--brand-600);}
.faq-item.open{border-color:var(--brand-400);box-shadow:var(--sh-1);}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--brand-600);border-radius:3px;
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease-out;
}
.faq-a-inner{
  padding:0 22px 22px 64px;
  font-size:15px;color:var(--ink-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-100);
  border:1px solid var(--brand-400);
  border-radius:var(--r-lg);
  padding:32px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.cta-band:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.cta-band h2{font-size:23px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-2);max-width:640px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.icon-btn{
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--brand-400);background:var(--surface);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{background:var(--brand-600);color:#fff;border-color:var(--brand-600);transform:translateY(-2px);}

.back-line{margin-top:28px;font-size:14.5px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(244,241,233,.8);margin-top:20px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding:58px 20px 42px;
}
.footer-brand p{font-size:14px;line-height:1.8;margin:14px 0 18px;color:rgba(244,241,233,.72);}
.search-box-dark{
  background:rgba(255,255,255,.06);
  border-color:rgba(244,241,233,.24);
  flex:1 1 auto;min-width:0;
}
.search-box-dark input{color:#F4F1E9;}
.search-box-dark input::placeholder{color:rgba(244,241,233,.5);}
.search-box-dark i{color:rgba(244,241,233,.6);}
.search-box-dark:focus-within{border-color:var(--brand-400);box-shadow:0 0 0 4px rgba(79,163,148,.2);}
.footer-col h3{font-size:14px;color:#F4F1E9;letter-spacing:.08em;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(244,241,233,.75);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{border-top:1px solid rgba(244,241,233,.16);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 20px;font-size:13px;color:rgba(244,241,233,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-head h1{font-size:34px;}
  .archive-grid{grid-template-columns:minmax(220px,28%) 1fr;gap:28px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step-card::after{display:none;}
  .points-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:991px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .page-head h1{font-size:30px;}
  .archive-grid{grid-template-columns:1fr;}
  .index-card{position:static;}
  .scene-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 20px 32px;}
}
@media (max-width:767px){
  .topbar-inner{height:56px;gap:12px;}
  .search-box{display:none;}
  .burger{display:inline-flex;}
  .topbar-actions .btn-sm{display:none;}
  .channel-inner{height:46px;gap:8px;}
  .pill{height:30px;padding:0 13px;font-size:13.5px;}
  .section{padding:40px 0;}
  .page-head{padding:24px 0 28px;}
  .page-head h1{font-size:27px;}
  .lead-line{font-size:15.5px;}
  .entry-row{grid-template-columns:1fr;gap:14px;padding:20px 14px;}
  .entry-thumb{aspect-ratio:16/9;}
  .faq-q{padding:16px;font-size:15.5px;gap:12px;}
  .faq-a-inner{padding:0 16px 18px 54px;font-size:14.5px;}
  .cta-band{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-solid,.cta-actions .btn-line{flex:1 1 auto;}
  .steps{grid-template-columns:1fr;}
  .num-list li{grid-template-columns:34px 1fr;gap:10px;}
  .num-list .n{font-size:19px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:38px 16px 26px;}
  .footer-bottom-inner{padding:16px;font-size:12.5px;}
  .brand-text{font-size:16.5px;}
  .meta-chips .chip{height:30px;font-size:12.5px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0E4A41;
  --brand-700:#14655A;
  --brand-600:#1C7C6C;
  --brand-400:#4FA394;
  --brand-100:#E3F0EC;
  --sand-600:#B9703A;
  --sand-400:#DE9A5E;
  --sand-100:#F7EBDD;
  --accent:#A8442C;
  --bg:#FAF8F4;
  --bg-alt:#F1EDE5;
  --surface:#FFFFFF;
  --ink:#16211E;
  --ink-2:#4A5551;
  --ink-3:#7D8884;
  --line:#E4DED2;
  --line-2:#D6CFC0;
  --ok:#2F7A55;
  --warn:#B9703A;
  --err:#A8442C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,74,65,.06),0 8px 22px rgba(14,74,65,.06);
  --sh-2:0 12px 32px rgba(14,74,65,.13);
  --container:1200px;
  --serif:"Noto Serif SC","Songti SC",Georgia,"Times New Roman",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  word-break:normal;
  overflow-wrap:anywhere;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-600);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,button{font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(14,74,65,.08);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex:0 0 auto;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand-600);
  color:#fff;
  display:grid;place-items:center;
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.5px;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--ink-3);
  margin-left:6px;
  letter-spacing:0;
}
.search-box{
  position:relative;
  flex:1 1 auto;
  max-width:400px;
  min-width:140px;
}
.search-box i{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  color:var(--ink-3);
  font-size:14px;
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:44px;
  padding:0 14px 0 38px;
  border:1px solid var(--line-2);
  border-radius:var(--r-md);
  background:var(--bg);
  color:var(--ink);
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box input:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand-600);
  box-shadow:0 0 0 4px rgba(28,124,108,.15);
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:0;
  border-radius:var(--r-md);
  background:var(--brand-600);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-main:active{transform:translateY(0);}
.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border:1.5px solid var(--brand-600);
  border-radius:var(--r-md);
  background:transparent;
  color:var(--brand-700);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand-700);
  font-size:15px;
  font-weight:600;
  background:none;
  border:0;
  padding:6px 0;
  position:relative;
}
.btn-ghost::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--brand-400);
  transition:width .2s ease;
}
.btn-ghost:hover::after{width:100%;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line-2);
  border-radius:var(--r-md);
  background:var(--surface);
  color:var(--ink);
  font-size:17px;
  transition:background .18s ease,border-color .18s ease;
}
.menu-toggle:hover{background:var(--brand-100);border-color:var(--brand-400);}

/* ---------- 频道 Tabs ---------- */
.channel-bar{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border:1px solid var(--line-2);
  border-radius:var(--r-pill);
  background:var(--surface);
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.pill:hover{background:var(--brand-100);border-color:var(--brand-400);color:var(--brand-700);}
.pill.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;}
.pill.active:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;}

.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:8px 0 16px;
}
.drawer.open{display:block;}
.drawer a{
  display:block;
  padding:14px 2px;
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer a:last-child{border-bottom:0;}
.drawer a:hover{color:var(--brand-700);}
.drawer a.active{color:var(--brand-700);font-weight:700;}

/* ---------- 页面头部横幅 ---------- */
.page-hero{
  position:relative;
  color:#fff;
  padding:52px 0 48px;
  background-image:
    linear-gradient(100deg,rgba(14,74,65,.94) 0%,rgba(14,74,65,.82) 48%,rgba(28,124,108,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{color:rgba(255,255,255,.45);}
.crumb .now{color:#fff;font-weight:600;}
.page-hero h1{
  color:#fff;
  font-size:38px;
  line-height:1.28;
  letter-spacing:.4px;
  max-width:860px;
  margin-bottom:14px;
}
.hero-lead{
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  color:rgba(255,255,255,.94);
  font-size:13px;
}
.chip i{font-size:12px;color:var(--brand-400);}
.chip b{font-family:var(--serif);font-size:15px;font-weight:700;}

/* ---------- 板块 ---------- */
.section{padding:68px 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
  flex-wrap:wrap;
}
.sec-title{font-size:26px;line-height:1.35;}
.sec-desc{
  font-size:14px;
  color:var(--ink-3);
  margin-top:6px;
  max-width:640px;
}

/* ---------- 筛选行 ---------- */
.filter-row{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:2px 0 18px;
  scrollbar-width:none;
}
.filter-row::-webkit-scrollbar{display:none;}
.fpill{
  flex:0 0 auto;
  height:34px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-2);
  background:var(--surface);
  color:var(--ink-2);
  font-size:14px;
  font-weight:500;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.fpill:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-400);}
.fpill.active{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-600);font-weight:600;}

/* ---------- 磁贴网格 ---------- */
.tile-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:start;
}
.tile{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-400);}
.tile-media{
  position:relative;
  overflow:hidden;
  background:var(--brand-100);
}
.tile-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.tile:hover .tile-media img{transform:scale(1.04);}
.tile-tag{
  position:absolute;
  left:14px;top:14px;
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);
  color:var(--brand-700);
  font-size:12px;
  font-weight:600;
  letter-spacing:.2px;
}
.tile-tag.hot{background:var(--accent);color:#fff;}
.tile-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.tile-title{font-size:19px;line-height:1.45;transition:color .18s ease;}
.tile:hover .tile-title{color:var(--brand-700);}
.tile-text{font-size:14px;line-height:1.75;color:var(--ink-2);}
.tile-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-3);
}
.tile-foot .num{font-family:var(--serif);letter-spacing:.04em;}
.t-1{grid-column:span 7;}
.t-2{grid-column:span 5;}
.t-3{grid-column:span 5;}
.t-4{grid-column:span 7;}
.t-5{grid-column:span 6;}
.t-6{grid-column:span 6;}
.t-1 .tile-media{height:300px;}
.t-2 .tile-media{height:196px;}
.t-3 .tile-media{height:220px;}
.t-4 .tile-media{height:268px;}
.t-5 .tile-media{height:190px;}
.t-6 .tile-media{height:190px;}
.tile-grid.filtered .tile{grid-column:span 6;}

/* ---------- 时间轴 ---------- */
.timeline-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}
.timeline{max-width:860px;}
.tl-item{
  position:relative;
  padding:0 0 30px 34px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:3px;top:7px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--brand-600);
  box-shadow:0 0 0 3px rgba(28,124,108,.12);
  z-index:1;
}
.tl-item::after{
  content:"";
  position:absolute;
  left:8px;top:26px;bottom:0;
  width:1px;
  background:var(--line);
}
.tl-item:last-child{padding-bottom:4px;}
.tl-item:last-child::after{display:none;}
.tl-date{
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--brand-700);
  font-weight:700;
}
.tl-title{
  font-size:17px;
  line-height:1.5;
  margin:5px 0 5px;
}
.tl-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
  margin:0;
}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--surface);
  box-shadow:var(--sh-1);
}
table.param{
  width:100%;
  border-collapse:collapse;
  min-width:680px;
}
table.param th,
table.param td{
  text-align:left;
  padding:15px 18px;
  border-bottom:1px solid var(--line);
  font-size:15px;
  line-height:1.7;
}
table.param thead th{
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
  font-size:14px;
  letter-spacing:.2px;
  white-space:nowrap;
}
table.param tbody tr:last-child td{border-bottom:0;}
table.param tbody tr:hover{background:#FBF9F5;}
table.param td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}
.tag-state{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  background:var(--sand-100);
  color:var(--sand-600);
}
.tag-state.good{background:var(--brand-100);color:var(--brand-700);}

/* ---------- 相关推荐 ---------- */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.rec-card{
  display:flex;
  gap:14px;
  align-items:center;
  padding:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  color:var(--ink);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-400);color:var(--ink);}
.rec-thumb{
  flex:0 0 88px;
  height:66px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--brand-100);
}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body{min-width:0;}
.rec-kicker{
  font-size:12px;
  font-weight:600;
  color:var(--sand-600);
  letter-spacing:.2px;
}
.rec-title{
  font-size:15px;
  line-height:1.5;
  margin-top:3px;
  font-weight:600;
  transition:color .18s ease;
}
.rec-card:hover .rec-title{color:var(--brand-700);}
.rec-meta{font-size:12px;color:var(--ink-3);margin-top:4px;}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  padding:28px 32px;
  background:var(--brand-100);
  border:1px solid var(--brand-400);
  border-radius:var(--r-lg);
  transition:transform .18s ease,box-shadow .18s ease;
}
.cta-band:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.cta-band h2{font-size:22px;line-height:1.4;}
.cta-band p{font-size:14px;color:var(--ink-2);margin-top:6px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.btn-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border:0;
  border-radius:var(--r-md);
  background:var(--brand-600);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .18s ease,transform .18s ease;
}
.btn-solid:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border:1.5px solid var(--brand-600);
  border-radius:var(--r-md);
  background:transparent;
  color:var(--brand-700);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .18s ease,transform .18s ease;
}
.btn-outline:hover{background:rgba(255,255,255,.7);color:var(--brand-700);transform:translateY(-1px);}
.icon-round{
  width:44px;height:44px;
  display:inline-grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--brand-400);
  background:var(--surface);
  color:var(--brand-700);
  font-size:15px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.icon-round:hover{background:var(--brand-600);color:#fff;border-color:var(--brand-600);transform:translateY(-2px);}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:6px 24px;
  box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  transition:color .18s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:-24px;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--brand-600);
  opacity:0;
  transition:opacity .18s ease;
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q:hover{color:var(--brand-700);}
.faq-q .idx{
  font-family:var(--serif);
  font-size:15px;
  color:var(--brand-400);
  flex:0 0 30px;
  letter-spacing:.04em;
}
.faq-q .txt{flex:1 1 auto;}
.faq-q .sign{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-2);
  color:var(--brand-700);
  font-size:12px;
  transition:transform .22s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.faq-item.open .faq-q .sign{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
  transform:rotate(180deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  padding:0 46px 22px 46px;
  margin:0;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding-top:56px;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand-light{color:#fff;}
.footer-brand .brand-light:hover{color:#fff;}
.footer-brand .brand-mark{background:var(--brand-600);}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  margin:16px 0 18px;
  max-width:360px;
}
.search-box-dark input{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.22);
  color:#fff;
}
.search-box-dark input::placeholder{color:rgba(255,255,255,.6);}
.search-box-dark i{color:rgba(255,255,255,.7);}
.search-box-dark input:focus{
  background:rgba(255,255,255,.14);
  border-color:var(--brand-400);
  box-shadow:0 0 0 4px rgba(79,163,148,.22);
}
.footer-col h3{
  font-size:15px;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.4px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{
  font-size:14px;
  color:rgba(255,255,255,.74);
  line-height:1.7;
}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:18px 0;
}
.footer-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:34px;}
  .t-1,.t-2,.t-3,.t-4,.t-5,.t-6{grid-column:span 6;}
  .t-1 .tile-media,.t-4 .tile-media{height:240px;}
}
@media (max-width:991px){
  .section{padding:52px 0;}
  .page-hero{padding:44px 0 40px;}
  .page-hero h1{font-size:30px;}
  .search-box{display:none;}
  .menu-toggle{display:inline-flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .rec-grid{grid-template-columns:1fr;}
  .faq-a p{padding:0 0 20px 46px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-text{font-size:15px;}
  .brand-sub{display:none;}
  .channel-bar{display:none;}
  .btn-main{height:40px;padding:0 16px;font-size:14px;}
  .page-hero{padding:34px 0 32px;}
  .page-hero h1{font-size:26px;line-height:1.34;}
  .hero-lead{font-size:15px;}
  .section{padding:40px 0;}
  .sec-title{font-size:22px;}
  .tile-grid{gap:16px;}
  .t-1,.t-2,.t-3,.t-4,.t-5,.t-6{grid-column:span 12;}
  .t-1 .tile-media,.t-2 .tile-media,.t-3 .tile-media,
  .t-4 .tile-media,.t-5 .tile-media,.t-6 .tile-media{height:200px;}
  .tile-body{padding:16px;}
  .tile-title{font-size:17px;}
  .tile-grid.filtered .tile{grid-column:span 12;}
  .cta-band{padding:22px 18px;}
  .cta-band h2{font-size:19px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-solid,
  .cta-actions .btn-outline{flex:1 1 auto;}
  .faq-list{padding:4px 18px;}
  .faq-q{font-size:16px;gap:12px;}
  .faq-q::before{left:-18px;}
  .faq-a p{padding:0 0 18px 42px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:6px;}
  .rec-card{padding:14px;}
  .rec-thumb{flex:0 0 76px;height:58px;}
}
@media (max-width:400px){
  .page-hero h1{font-size:23px;}
  .icon-round{width:40px;height:40px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0E4A41;
  --brand-700:#14655A;
  --brand-600:#1C7C6C;
  --brand-400:#4FA394;
  --brand-100:#E3F0EC;
  --sand-600:#B9703A;
  --sand-400:#DE9A5E;
  --sand-100:#F7EBDD;
  --accent:#A8442C;
  --bg:#FAF8F4;
  --bg-alt:#F1EDE5;
  --surface:#FFFFFF;
  --ink:#16211E;
  --ink-2:#4A5551;
  --ink-3:#7D8884;
  --line:#E4DED2;
  --line-2:#D6CFC0;
  --ok:#2F7A55;
  --warn:#B9703A;
  --err:#A8442C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,74,65,.06), 0 8px 22px rgba(14,74,65,.06);
  --sh-2:0 12px 32px rgba(14,74,65,.13);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
  word-break:normal;
  overflow-wrap:anywhere;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--brand-900)}
p{margin:0 0 1em}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;font-weight:700;letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:26px;line-height:1.35;margin-bottom:8px}
.section-head p{margin:0;color:var(--ink-2);font-size:15px}
.head-link{font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:1px solid rgba(20,101,90,.35);padding-bottom:2px;white-space:nowrap}
.head-link:hover{border-color:var(--brand-700)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(250,248,244,.96);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(14,74,65,.09)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:.01em}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--brand-600),var(--brand-900));color:#fff;font-family:var(--font-serif);font-size:18px;display:grid;place-items:center;flex:none;box-shadow:0 6px 14px rgba(14,74,65,.22)}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;white-space:nowrap}
.brand-sub{font-size:12.5px;font-weight:500;color:var(--ink-3)}
.search-box{display:flex;align-items:center;gap:10px;height:44px;width:100%;max-width:400px;margin-left:auto;padding:0 16px;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-md);transition:box-shadow .18s ease,border-color .18s ease}
.search-box i{color:var(--ink-3);font-size:14px}
.search-box input{flex:1;border:0;background:transparent;font-size:14.5px;color:var(--ink);outline:none}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(28,124,108,.15)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.topbar-actions .search-box{margin-left:0}
.nav-toggle{width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line-2);background:var(--surface);color:var(--brand-700);display:none;place-items:center;font-size:17px;cursor:pointer}
.nav-toggle:hover{background:var(--brand-100);border-color:var(--brand-400)}

/* buttons */
.btn-brand,.btn-outline-brand,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-md);font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:all .18s ease-out;white-space:nowrap}
.btn-brand{background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(14,74,65,.2)}
.btn-outline-brand{background:transparent;color:var(--brand-700);border-color:var(--brand-600)}
.btn-outline-brand:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand-700);padding:0 4px;height:auto;position:relative}
.btn-ghost::after{content:"";position:absolute;left:0;right:100%;bottom:-4px;height:2px;background:var(--brand-400);transition:right .2s ease-out}
.btn-ghost:hover::after{right:0}
.btn-sm{height:40px;padding:0 16px;font-size:14px}

/* channel bar */
.channel-bar{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.pill{flex:none;scroll-snap-align:start;display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-pill);border:1px solid var(--line-2);background:transparent;color:var(--ink);font-size:14px;font-weight:500;line-height:1.4;transition:all .18s ease}
.pill:hover{background:var(--brand-100);border-color:var(--brand-400);color:var(--brand-900)}
.pill.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.pill.active:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff}

/* offcanvas */
.offcanvas.side-nav{background:var(--bg);width:320px;border-left:1px solid var(--line)}
.side-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.side-nav .offcanvas-body{padding:18px 20px 40px}
.side-nav .btn-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line-2);background:transparent;opacity:1;display:grid;place-items:center}
.side-nav .btn-close:hover{background:var(--brand-100)}
.mnav-item{display:block;padding:14px 12px;border-radius:var(--r-md);font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.mnav-item:hover{background:var(--brand-100);color:var(--brand-900)}
.mnav-item.active{background:var(--brand-600);color:#fff;border-color:transparent}

/* breadcrumb */
.crumb-bar{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:14px 0}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--ink-3)}
.crumb a{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);font-weight:500}
.crumb a:hover{background:var(--brand-600);color:#fff}
.crumb .sep{color:var(--line-2)}
.crumb .current{padding:4px 12px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--line);color:var(--ink-2)}

/* page head */
.page-head{position:relative;background:#0E4A41 url("/assets/images/backpic/back-2.webp") center/cover no-repeat;padding:56px 0 60px;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(250,248,244,.97) 0%,rgba(250,248,244,.93) 40%,rgba(250,248,244,.72) 68%,rgba(227,240,236,.55) 100%)}
.page-head .container{position:relative;z-index:2}
.head-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;letter-spacing:.02em}
.tag-brand{background:var(--brand-100);color:var(--brand-700)}
.tag-sand{background:var(--sand-100);color:var(--sand-600)}
.tag-accent{background:var(--accent);color:#fff}
.page-head h1{font-size:38px;line-height:1.28;margin-bottom:16px}
.page-head h1 .kw{color:var(--brand-700)}
.lead{font-size:16.5px;color:var(--ink-2);max-width:620px;margin-bottom:26px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.meta-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:var(--r-pill);background:rgba(255,255,255,.85);border:1px solid var(--line);font-size:13px;color:var(--ink-2)}
.chip b{font-family:var(--font-serif);color:var(--brand-700);font-size:14px}
.head-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.6)}
.head-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* scene */
.scene-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.scene-stack{display:grid;gap:24px}
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:26px;transition:transform .18s ease-out,box-shadow .18s ease-out}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scene-card h3{font-size:19px;line-height:1.5;margin:14px 0 10px;transition:color .18s ease}
.scene-card:hover h3{color:var(--brand-700)}
.scene-card p{color:var(--ink-2);font-size:15px;margin-bottom:14px}
.check-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-bottom:8px}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--brand-400)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:8px}
.step{position:relative;padding:24px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-400)}
.step-no{font-family:var(--font-serif);font-size:26px;color:var(--brand-400);line-height:1;display:block;margin-bottom:12px}
.step h4{font-size:16px;margin-bottom:8px;font-family:var(--font-sans);font-weight:700}
.step p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.75}

/* accordion */
.main-grid{display:grid;grid-template-columns:1.9fr 1fr;gap:40px;align-items:start}
.acc-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:8px 26px}
.safe-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.safe-accordion .accordion-item:last-child{border-bottom:0}
.safe-accordion .accordion-header{margin:0}
.safe-accordion .accordion-button{display:flex;align-items:center;gap:16px;width:100%;padding:22px 0;background:transparent;border:0;box-shadow:none;text-align:left;color:var(--ink);font-size:16.5px;font-weight:600;line-height:1.6;transition:background-color .18s ease,color .18s ease,padding .18s ease,box-shadow .18s ease}
.safe-accordion .accordion-button::after{display:none}
.safe-accordion .accordion-button:hover{color:var(--brand-700)}
.safe-accordion .accordion-button:not(.collapsed){color:var(--brand-900);background:var(--brand-100);box-shadow:inset 3px 0 0 var(--brand-600);padding-left:16px;padding-right:16px}
.safe-accordion .accordion-button:focus{box-shadow:none;outline:none}
.safe-accordion .accordion-button:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.acc-no{font-family:var(--font-serif);font-size:15px;color:var(--brand-400);font-variant-numeric:tabular-nums;flex:none;width:30px}
.acc-icon{flex:none;margin-left:auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-2);display:grid;place-items:center;font-size:11px;color:var(--brand-700);transition:transform .22s ease,background-color .18s ease,border-color .18s ease}
.accordion-button:not(.collapsed) .acc-icon{transform:rotate(45deg);background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.safe-accordion .accordion-body{padding:16px 18px 24px 62px;font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.safe-accordion .accordion-body strong{color:var(--ink);font-weight:700}

/* sidebar */
.side-col{display:grid;gap:24px;position:sticky;top:96px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--brand-400);font-size:14px}
.side-list li{border-bottom:1px solid var(--line);padding:11px 0}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list a{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--ink-2);font-weight:500}
.side-list a i{font-size:11px;color:var(--brand-400);transition:transform .18s ease}
.side-list a:hover{color:var(--brand-700)}
.side-list a:hover i{transform:translateX(3px)}
.pill-cloud{display:flex;flex-wrap:wrap;gap:9px}
.pill-cloud a,.pill-cloud span{display:inline-flex;padding:6px 13px;border-radius:var(--r-pill);font-size:13px;border:1px solid var(--line-2);color:var(--ink-2);background:var(--bg)}
.pill-cloud a:hover{background:var(--brand-100);border-color:var(--brand-400);color:var(--brand-900)}
.pill-cloud span.current{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.side-card .btn-outline-brand{width:100%}
.side-note{font-size:13px;color:var(--ink-3);margin:12px 0 0;line-height:1.7}

/* related cards */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.mini-card .thumb{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.mini-card:hover .thumb img{transform:scale(1.04)}
.mini-card .body{padding:20px}
.mini-card h3{font-size:16.5px;line-height:1.5;margin:12px 0 0;transition:color .18s ease}
.mini-card:hover h3{color:var(--brand-700)}
.badge-sand{background:var(--sand-100);color:var(--sand-600)}

/* cta band */
.cta-band{background:var(--brand-100);border:1px solid var(--brand-400);border-radius:var(--r-lg);padding:34px 36px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;transition:transform .18s ease,box-shadow .18s ease}
.cta-band:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.cta-band h2{font-size:23px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--ink-2);font-size:15px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.icon-btn{width:46px;height:46px;border-radius:50%;border:1.5px solid var(--brand-600);background:transparent;color:var(--brand-700);display:grid;place-items:center;font-size:15px;transition:all .18s ease-out;cursor:pointer}
.icon-btn:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px)}

/* footer */
.site-footer{background:var(--brand-900);color:#CFE3DE;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-brand .brand-light{color:#fff}
.footer-brand .brand-light .brand-sub{color:#9DBDB6}
.footer-brand p{margin:18px 0 20px;font-size:14px;line-height:1.85;color:#A9C6C0;max-width:360px}
.search-box-dark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);max-width:320px;margin-left:0}
.search-box-dark i{color:#9DBDB6}
.search-box-dark input{color:#fff}
.search-box-dark input::placeholder{color:#9DBDB6}
.search-box-dark:focus-within{border-color:var(--brand-400);box-shadow:0 0 0 4px rgba(79,163,148,.25)}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--font-sans);font-weight:700;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a{color:#A9C6C0}
.footer-col ul li a:hover{color:#fff;border-bottom:1px solid var(--brand-400)}
.footer-col ul li span{color:#A9C6C0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding:18px 0}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8FB0AA}

/* responsive */
@media (max-width:1199px){
  .head-grid{grid-template-columns:1.3fr .9fr;gap:32px}
  .page-head h1{font-size:34px}
  .steps{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991px){
  .section{padding:56px 0}
  .head-grid{grid-template-columns:1fr;gap:28px}
  .head-visual img{aspect-ratio:16/9}
  .scene-grid{grid-template-columns:1fr}
  .main-grid{grid-template-columns:1fr;gap:32px}
  .side-col{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-head h1{font-size:31px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:40px 0}
  .channel-bar{display:none}
  .nav-toggle{display:grid}
  .topbar-actions .search-box{display:none}
  .topbar-inner{height:56px;gap:12px}
  .search-box{max-width:none}
  .page-head{padding:36px 0 40px}
  .page-head h1{font-size:27px}
  .lead{font-size:15.5px}
  .cta-row .btn-brand,.cta-row .btn-outline-brand{flex:1 1 100%}
  .steps{grid-template-columns:1fr}
  .acc-wrap{padding:6px 18px}
  .safe-accordion .accordion-button{font-size:15.5px;gap:12px}
  .safe-accordion .accordion-body{padding:14px 14px 22px 14px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .meta-chips{gap:8px}
  .chip{font-size:12.5px;padding:7px 12px}
  .scene-card{padding:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}