/* roulang page: index */
:root{
  --brand-900:#08291F;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --dark-text:#ECEFE9;
  --dark-muted:#A9B5AC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(11,59,46,.06),0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:#F6F4EE;
  --bs-body-color:#14181C;
  --bs-primary:#14684F;
  --bs-primary-rgb:20,104,79;
  --bs-border-color:#E1DED3;
  --bs-border-radius:10px;
  --bs-link-color:#14684F;
  --bs-link-hover-color:#0B3B2E;
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;color:var(--brand-700);line-height:1.25;margin:0;}
h1{font-size:clamp(30px,4.4vw,52px);}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:clamp(19px,2vw,23px);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:32px;padding-right:32px;margin:0 auto;}
.section{padding:110px 0;}
.section-sm{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-500);margin-bottom:14px;
}
.section-head p{color:var(--ink-600);font-size:16px;margin:14px 0 0;max-width:620px;}
.num-tag{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:8px;background:var(--brand-700);color:var(--accent-400);
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;flex:0 0 auto;
}
/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  background:rgba(8,41,31,.16);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .24s var(--ease),height .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  height:64px;background:var(--brand-700);border-bottom-color:rgba(255,255,255,.08);box-shadow:var(--shadow-nav);
}
.nav-wrap{display:flex;align-items:center;gap:28px;width:100%;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:11px;background:var(--accent-400);color:var(--brand-900);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{color:#fff;font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand-sub{color:var(--accent-400);font-size:12px;letter-spacing:.22em;font-weight:600;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  color:var(--dark-text);font-size:15px;font-weight:500;letter-spacing:.02em;
  padding:9px 13px;border-radius:9px;transition:background .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.nav-link:hover,.nav-link:focus-visible{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;}
.nav-link.active{background:rgba(198,242,78,.16);color:var(--accent-400);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.icon-btn{
  width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:var(--dark-text);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.14);color:#fff;}
.nav-search-input{
  width:0;opacity:0;padding:0;border:1px solid rgba(255,255,255,.24);border-radius:10px;height:42px;
  background:rgba(255,255,255,.10);color:#fff;font-size:14px;
  transition:width .26s var(--ease),opacity .26s var(--ease),padding .26s var(--ease);
}
.nav-search.is-open .nav-search-input{width:190px;opacity:1;padding:0 14px;margin-left:8px;}
.nav-search-input::placeholder{color:rgba(236,239,233,.65);}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.btn-brand{
  background:var(--accent-400);color:var(--brand-900);border:1px solid var(--accent-400);
  border-radius:var(--radius-btn);padding:12px 24px;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:9px;
  transition:background .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-brand:hover{background:var(--accent-600);border-color:var(--accent-600);color:var(--brand-900);transform:translateY(-1px);text-decoration:none;}
.btn-brand.btn-sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  background:transparent;border:1px solid rgba(255,255,255,.28);color:var(--dark-text);
  border-radius:var(--radius-btn);padding:12px 24px;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:9px;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-1px);text-decoration:none;}
.btn-outline-ink{
  background:transparent;border:1px solid var(--line);color:var(--brand-700);
  border-radius:var(--radius-btn);padding:12px 24px;font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;gap:9px;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-outline-ink:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-1px);text-decoration:none;}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--brand-500);}
.btn-text i{transition:transform .22s var(--ease);}
.btn-text:hover i{transform:translateX(3px);}
.mobile-drawer{
  position:fixed;top:64px;left:0;right:0;background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.08);
  padding:10px 0 20px;display:none;z-index:1029;
  max-height:calc(100vh - 64px);overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;color:var(--dark-text);font-size:16px;line-height:44px;padding:0 24px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--accent-400);text-decoration:none;background:rgba(255,255,255,.04);}
.mobile-drawer .drawer-cta{margin:18px 24px 0;}
.drawer-cta .btn-brand{width:100%;justify-content:center;}
/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--brand-900);color:var(--dark-text);
  padding:172px 0 96px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(8,41,31,.94) 0%,rgba(8,41,31,.78) 48%,rgba(8,41,31,.55) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:.08em;color:var(--accent-400);
  border:1px solid rgba(198,242,78,.38);border-radius:999px;padding:7px 16px;margin-bottom:26px;
  background:rgba(198,242,78,.08);
}
.hero h1{color:#fff;max-width:16em;}
.hero h1 .hl{color:var(--accent-400);}
.hero-lead{
  font-size:18px;line-height:1.9;color:var(--dark-text);max-width:640px;margin:22px 0 34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:52px;}
.trust-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  border-top:1px solid rgba(255,255,255,.14);padding-top:30px;max-width:920px;
}
.trust-item{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--dark-text);}
.trust-item i{color:var(--accent-400);font-size:17px;}
/* ---------- cards ---------- */
.card-soft{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card-soft:hover{transform:translateY(-3px);border-color:#d5d1c2;}
.card-dark{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-card);padding:28px;color:var(--dark-text);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.card-soft img,.card-dark img{border-radius:var(--radius-img);}
.pill{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700;
  border-radius:999px;padding:5px 14px;border:1px solid rgba(20,104,79,.28);
  background:rgba(20,104,79,.06);color:var(--brand-500);
}
.pill-accent{border-color:rgba(198,242,78,.55);background:rgba(198,242,78,.18);color:#3c5410;}
.pill-warn{border-color:rgba(255,122,47,.45);background:rgba(255,122,47,.12);color:#b34a10;}
.feature-main img{aspect-ratio:16/9;object-fit:cover;width:100%;margin-bottom:20px;}
.feature-list{display:flex;flex-direction:column;gap:22px;}
.feature-item{display:flex;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line);}
.feature-item:last-child{border-bottom:0;padding-bottom:0;}
.feature-item h3{font-size:20px;margin-bottom:8px;}
.feature-item p{color:var(--ink-600);font-size:15px;line-height:1.8;margin:0;}
/* ---------- demo ---------- */
.demo-frame{
  border:1px solid rgba(11,59,46,.28);border-radius:var(--radius-card);padding:14px;background:#fff;
  box-shadow:var(--shadow-card);
}
.demo-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);}
.demo-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:26px;}
.demo-note{display:flex;gap:12px;font-size:15px;color:var(--ink-600);}
.demo-note i{color:var(--brand-500);margin-top:5px;}
/* ---------- proof ---------- */
.proof{background:var(--brand-900);color:var(--dark-text);}
.proof h2,.proof h3{color:#fff;}
.proof .section-head p{color:var(--dark-muted);}
.stat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.stat-block{border-left:2px solid rgba(198,242,78,.5);padding-left:18px;}
.stat-num{
  font-size:clamp(30px,4vw,44px);font-weight:800;color:var(--accent-400);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-num small{font-size:15px;color:var(--dark-text);font-weight:600;margin-left:4px;}
.stat-block p{font-size:14px;color:var(--dark-muted);margin:8px 0 0;line-height:1.8;}
.timeline{position:relative;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:rgba(255,255,255,.2);}
.timeline-item{position:relative;padding-bottom:24px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-26px;top:9px;width:11px;height:11px;border-radius:50%;
  background:var(--brand-900);border:2px solid var(--accent-400);
}
.timeline-year{font-variant-numeric:tabular-nums;font-weight:800;color:var(--accent-400);font-size:15px;}
.timeline-item p{font-size:14px;color:var(--dark-muted);margin:4px 0 0;line-height:1.8;}
/* ---------- news ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;height:100%;
  box-shadow:var(--shadow-card);transition:transform .24s var(--ease),border-color .24s var(--ease);display:flex;flex-direction:column;}
.news-card:hover{transform:translateY(-3px);border-color:#d5d1c2;}
.news-cover{display:block;overflow:hidden;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.news-title{font-size:19px;line-height:1.5;font-weight:800;color:var(--brand-700);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card-lg .news-title{font-size:24px;}
.news-summary{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:var(--ink-600);
  font-variant-numeric:tabular-nums;}
.news-side{display:flex;flex-direction:column;gap:20px;height:100%;}
.news-row{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;align-items:center;transition:transform .24s var(--ease),border-color .24s var(--ease);}
.news-row:hover{transform:translateY(-3px);border-color:#d5d1c2;}
.news-row img{width:132px;height:88px;object-fit:cover;border-radius:12px;flex:0 0 auto;}
.news-row .news-title{font-size:17px;}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;color:var(--ink-600);
}
.news-empty i{font-size:34px;color:#c9c4b3;margin-bottom:18px;display:block;}
.news-empty h3{font-size:19px;margin-bottom:10px;}
.news-empty p{font-size:15px;margin:0 0 6px;}
/* ---------- channels ---------- */
.channel-card{
  display:flex;gap:20px;background:var(--paper-50);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;height:100%;
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.channel-card:hover{transform:translateY(-3px);border-color:var(--brand-500);background:#fff;text-decoration:none;}
.channel-card img{width:150px;height:112px;object-fit:cover;border-radius:var(--radius-img);flex:0 0 auto;}
.channel-card h3{font-size:19px;margin-bottom:8px;}
.channel-card p{font-size:14px;color:var(--ink-600);line-height:1.8;margin:0 0 10px;}
.channel-card .link-hint{font-size:14px;font-weight:700;color:var(--brand-500);display:inline-flex;align-items:center;gap:7px;}
/* ---------- pricing ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:30px 26px;
  box-shadow:var(--shadow-card);position:relative;transition:transform .24s var(--ease),border-color .24s var(--ease);}
.price-card:hover{transform:translateY(-3px);}
.price-card.is-featured{border-color:var(--brand-500);transform:translateY(-8px);}
.price-card.is-featured:hover{transform:translateY(-11px);}
.price-badge{position:absolute;top:-14px;right:22px;background:var(--warn-500);color:#fff;font-size:13px;
  font-weight:700;border-radius:999px;padding:5px 14px;}
.price-name{font-size:19px;font-weight:800;color:var(--brand-700);}
.price-value{font-size:34px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;margin:14px 0 4px;}
.price-value small{font-size:14px;font-weight:600;color:var(--ink-600);margin-left:6px;}
.price-desc{font-size:14px;color:var(--ink-600);margin:0 0 20px;}
.price-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;border-top:1px solid var(--line);padding-top:20px;}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-600);line-height:1.7;}
.price-list i{color:var(--brand-500);margin-top:5px;font-size:13px;}
/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);background:var(--paper-50);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:18px;background:transparent;border:0;cursor:pointer;
  padding:22px 18px;text-align:left;transition:background .22s var(--ease);
}
.faq-q:hover{background:var(--paper-100);}
.faq-item.is-open .faq-q{background:var(--paper-100);}
.faq-q .q-index{font-variant-numeric:tabular-nums;font-weight:800;color:var(--brand-500);font-size:14px;flex:0 0 auto;}
.faq-q .q-text{font-size:18px;font-weight:700;color:var(--brand-700);flex:1 1 auto;line-height:1.6;}
.faq-q .q-icon{color:var(--brand-500);transition:transform .24s var(--ease);flex:0 0 auto;}
.faq-item.is-open .q-icon{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{padding:0 18px 24px 62px;margin:0;color:var(--ink-600);font-size:15px;line-height:1.9;}
/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--brand-900);color:var(--dark-text);overflow:hidden;padding:88px 0;}
.cta-band::before{content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.22;}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,41,31,.92),rgba(8,41,31,.62));}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;max-width:16em;}
.cta-band p{color:var(--dark-muted);max-width:560px;margin:16px 0 28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-mini{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);padding:26px;}
.cta-mini h3{color:#fff;font-size:18px;margin-bottom:14px;}
.field-row{margin-bottom:14px;}
.field-row label{display:block;font-size:14px;color:var(--dark-muted);margin-bottom:7px;}
.field-row input,.field-row textarea{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:10px;color:#fff;font-size:15px;padding:0 14px;height:48px;font-family:inherit;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field-row textarea{height:92px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field-row input:focus,.field-row textarea:focus{
  outline:none;border-color:var(--accent-400);box-shadow:0 0 0 4px rgba(198,242,78,.14);
}
.form-tip{font-size:13px;color:var(--dark-muted);margin:12px 0 0;}
/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:var(--dark-muted);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{width:38px;height:38px;font-size:16px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2;}
.footer-brand-text span:first-child{color:#fff;font-weight:800;font-size:16px;}
.footer-brand-text span:last-child{color:var(--accent-400);font-size:12px;letter-spacing:.2em;}
.footer-col h4{color:var(--dark-text);font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col p{font-size:14px;line-height:1.8;margin:0 0 10px;}
.footer-col a{display:block;color:var(--dark-muted);font-size:14px;line-height:2;transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--accent-400);text-decoration:none;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);padding:24px 0;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;
}
.footer-bottom a{color:var(--dark-muted);}
.footer-bottom a:hover{color:var(--accent-400);}
/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;height:48px;padding:0 22px;border-radius:999px;
  background:var(--accent-400);color:var(--brand-900);font-size:14px;font-weight:800;
  box-shadow:0 10px 26px -12px rgba(8,41,31,.6);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),background .22s var(--ease);
}
.float-cta:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{padding-left:26px;padding-right:26px;}
  .nav-links{gap:2px;}
  .nav-link{padding:9px 10px;font-size:14px;}
}
@media (max-width:991.98px){
  .nav-links,.nav-search{display:none;}
  .section{padding:76px 0;}
  .hero{padding:140px 0 72px;}
  .trust-row{grid-template-columns:repeat(2,1fr);}
  .pricing-grid{grid-template-columns:1fr;}
  .price-card.is-featured{transform:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .channel-card{flex-direction:column;}
  .channel-card img{width:100%;height:180px;}
  .stat-list{gap:20px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:58px 0;}
  .hero{padding:120px 0 60px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .demo-notes{grid-template-columns:1fr;}
  .stat-list{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .news-row img{width:104px;height:74px;}
  .faq-a p{padding-left:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .float-cta{right:14px;bottom:14px;padding:0 16px;}
}
@media (max-width:520px){
  .trust-row{grid-template-columns:1fr;}
  .brand-main{font-size:15px;}
  .float-cta span{font-size:13px;}
}

/* roulang page: article */
:root{
  --brand-900:#08291F;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --soft:#ECEFE9;
  --soft-dim:#A9B5AC;
  --shadow-card:0 1px 2px rgba(11,59,46,.06), 0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#14684F;
  --bs-primary-rgb:20,104,79;
  --bs-body-bg:#F6F4EE;
  --bs-body-color:#14181C;
  --bs-border-color:#E1DED3;
  --bs-border-radius:16px;
  --bs-link-color:#14684F;
  --bs-link-hover-color:#0B3B2E;
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--paper-50);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease)}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:2px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;color:var(--brand-700)}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:32px}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  background:rgba(8,41,31,.18);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:height .24s var(--ease),background-color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{height:64px;background:var(--brand-700);border-bottom-color:rgba(255,255,255,.08);box-shadow:var(--shadow-nav)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;
  background:var(--accent-400);color:var(--brand-900);
  border-radius:12px;font-size:17px;
  box-shadow:0 0 0 1px rgba(255,255,255,.16) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:17px;font-weight:800;color:#ECEFE9;letter-spacing:.04em}
.brand-sub{font-size:11px;color:var(--accent-400);letter-spacing:.32em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:#ECEFE9;letter-spacing:.02em;border-radius:10px;
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-link:hover{color:var(--accent-400);background:rgba(255,255,255,.08);text-decoration:none}
.nav-link.active{color:var(--brand-900);background:var(--accent-400);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  color:#ECEFE9;cursor:pointer;transition:background-color .22s var(--ease),color .22s var(--ease)
}
.icon-btn:hover{background:rgba(255,255,255,.20);color:var(--accent-400)}
.nav-search-input{
  width:0;padding:0;height:40px;border:0;border-radius:10px;background:rgba(255,255,255,.94);
  color:var(--ink-900);font-size:14px;opacity:0;transition:width .26s var(--ease),opacity .26s var(--ease),padding .26s var(--ease)
}
.nav-search.is-open .nav-search-input{width:190px;padding:0 12px;opacity:1}
.nav-toggle{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);color:#ECEFE9;cursor:pointer
}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-400);color:var(--brand-900);
  border:1px solid var(--accent-400);border-radius:var(--radius-btn);
  padding:13px 24px;font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.btn-brand:hover{background:var(--accent-600);border-color:var(--accent-600);color:var(--brand-900);text-decoration:none;transform:translateY(-1px)}
.btn-brand.btn-sm{padding:10px 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:#ECEFE9;border:1px solid rgba(255,255,255,.28);
  border-radius:var(--radius-btn);padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .2s var(--ease)
}
.btn-ghost:hover{border-color:var(--accent-400);color:var(--accent-400);text-decoration:none;transform:translateY(-1px)}
.btn-ghost.on-light{color:var(--brand-700);border-color:var(--line)}
.btn-ghost.on-light:hover{color:var(--brand-500);border-color:var(--brand-500)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand-500);background:none;border:0;padding:0;cursor:pointer}
.btn-text i{transition:transform .2s var(--ease)}
.btn-text:hover{color:var(--brand-700);text-decoration:none}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:150px 0 72px;overflow:hidden;
  background:var(--brand-900);color:var(--soft);
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,41,31,.78) 0%,rgba(8,41,31,.72) 55%,rgba(8,41,31,.94) 100%);
}
.page-hero__inner{position:relative;z-index:2;max-width:860px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--soft-dim);margin-bottom:20px}
.crumbs a{color:#ECEFE9}
.crumbs a:hover{color:var(--accent-400)}
.crumbs .sep{color:rgba(255,255,255,.35)}
.crumbs .now{color:var(--accent-400)}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4vw,50px);line-height:1.25;letter-spacing:-.01em;
  max-width:860px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;margin-top:26px;font-size:14px;color:var(--soft-dim)}
.meta-row i{color:var(--accent-400);margin-right:6px}
.meta-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:14px;font-weight:600;
  background:rgba(198,242,78,.14);border:1px solid rgba(198,242,78,.45);color:var(--accent-400);
}

/* ---------- article layout ---------- */
.article-section{padding:72px 0 88px;background:var(--paper-50)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;
  gap:56px;justify-content:center;align-items:start;
}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:44px 48px;
}
.rich-text{font-size:17px;line-height:1.9;color:var(--ink-900);letter-spacing:.01em}
.rich-text > *:first-child{margin-top:0}
.rich-text p{margin:0 0 1.2em}
.rich-text h2{
  position:relative;font-size:28px;line-height:1.35;color:var(--brand-700);
  margin:40px 0 16px;padding-left:16px;
}
.rich-text h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--accent-400);
}
.rich-text h3{font-size:21px;color:var(--brand-700);margin:28px 0 12px}
.rich-text ul,.rich-text ol{padding-left:1.35em}
.rich-text li{margin:.4em 0;line-height:1.9}
.rich-text blockquote{
  margin:24px 0;padding:16px 20px;background:var(--paper-100);
  border-left:1px solid var(--brand-500);border-radius:0 12px 12px 0;color:var(--ink-600);
}
.rich-text blockquote p:last-child{margin-bottom:0}
.rich-text img{border-radius:var(--radius-img);margin:22px 0}
.rich-text figure{margin:22px 0}
.rich-text figcaption{font-size:13px;color:var(--ink-600);text-align:center;margin-top:10px}
.rich-text table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.rich-text th{background:var(--brand-700);color:#ECEFE9;font-weight:600;text-align:left;padding:12px 14px;border:1px solid var(--line)}
.rich-text td{padding:12px 14px;border:1px solid var(--line);vertical-align:top}
.rich-text a{color:var(--brand-500);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:2px}
.rich-text a:hover{color:var(--brand-700)}
.rich-text code{background:var(--paper-100);border-radius:6px;padding:2px 6px;font-size:15px}
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper-50);
}
.empty-state .ico{font-size:30px;color:var(--brand-500);margin-bottom:16px}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--ink-600);font-size:15px;margin-bottom:22px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .label{font-size:14px;color:var(--ink-600);margin-right:4px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:14px;
  background:var(--paper-50);border:1px solid var(--line);color:var(--brand-700);
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-500);text-decoration:none}
.chip.warn{background:rgba(255,122,47,.10);border-color:rgba(255,122,47,.40);color:#B24A12}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:17px;margin-bottom:14px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:15px;color:var(--brand-700);
}
.side-list a i{color:var(--accent-600);font-size:13px;transition:transform .2s var(--ease)}
.side-list a:hover{color:var(--brand-500);text-decoration:none}
.side-list a:hover i{transform:translateX(3px)}
.side-note{font-size:14px;line-height:1.8;color:var(--ink-600);margin:0}
.side-card.dark{background:var(--brand-900);border-color:transparent;color:var(--soft)}
.side-card.dark h3{color:#fff}
.side-card.dark .side-note{color:var(--soft-dim)}
.side-card.dark a{color:var(--accent-400)}
.side-card.dark a:hover{color:#fff}

/* ---------- related ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:38px}
.section-head h2{font-size:clamp(24px,2.6vw,34px)}
.section-head p{margin:10px 0 0;color:var(--ink-600);font-size:16px;max-width:640px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-soft{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.card-soft:hover{transform:translateY(-3px);border-color:var(--brand-500)}
.card-soft .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--paper-100)}
.card-soft .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.card-soft .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-soft h3{font-size:19px;line-height:1.4}
.card-soft p{margin:0;font-size:15px;line-height:1.8;color:var(--ink-600)}
.card-soft .go{margin-top:auto;font-size:15px;font-weight:700;color:var(--brand-500);display:inline-flex;align-items:center;gap:6px}
.card-soft:hover .go i{transform:translateX(3px)}
.card-soft .go i{transition:transform .2s var(--ease)}

/* ---------- faq ---------- */
.faq-wrap{background:var(--paper-100);border-radius:var(--radius-card);border:1px solid var(--line);overflow:hidden}
.faq-acc .accordion-item{background:transparent;border:0;border-top:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:0}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;
  background:transparent;color:var(--brand-700);font-size:18px;font-weight:700;
  padding:22px 26px;box-shadow:none;border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--paper-50);color:var(--brand-700)}
.faq-acc .accordion-button::after{
  margin-left:auto;width:14px;height:14px;background-size:14px;
  transition:transform .24s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(90deg)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-400);outline-offset:-2px}
.faq-no{
  flex:0 0 40px;font-size:14px;font-weight:700;letter-spacing:.06em;
  font-variant-numeric:tabular-nums;color:var(--brand-500);
}
.faq-acc .accordion-body{padding:0 26px 24px 82px;font-size:16px;line-height:1.9;color:var(--ink-600);background:var(--paper-50)}
.faq-acc .accordion-body p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:var(--soft);padding:92px 0}
.cta-band__bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.30;
}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,41,31,.92),rgba(11,59,46,.86))}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,34px);margin-bottom:16px}
.cta-inner p{color:var(--soft-dim);font-size:16px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-panel{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-card);padding:28px;
}
.cta-panel h3{color:#fff;font-size:18px;margin-bottom:14px}
.cta-panel ul{list-style:none;margin:0;padding:0}
.cta-panel li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--soft-dim);padding:8px 0}
.cta-panel li i{color:var(--accent-400);margin-top:6px;font-size:13px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:var(--soft-dim);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.15}
.footer-brand-text span:first-child{font-size:17px;font-weight:800;color:#ECEFE9;letter-spacing:.04em}
.footer-brand-text span:last-child{font-size:11px;color:var(--accent-400);letter-spacing:.32em;margin-top:3px}
.footer-col h4{font-size:15px;color:#ECEFE9;margin-bottom:16px;font-weight:700}
.footer-col p{font-size:14px;line-height:1.8;margin:0 0 10px}
.footer-col a{display:block;font-size:14px;line-height:1.8;color:var(--soft-dim);margin-bottom:8px}
.footer-col a:hover{color:var(--accent-400);text-decoration:none}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:13px;color:rgba(236,239,233,.55)}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px;
  background:var(--accent-400);color:var(--brand-900);border-radius:999px;
  font-size:14px;font-weight:700;box-shadow:0 10px 26px -12px rgba(8,41,31,.75);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease),background-color .2s var(--ease);
}
.float-cta:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;transform:translateY(-1px)}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:64px;right:0;width:min(78vw,340px);
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:var(--brand-900);border-left:1px solid rgba(255,255,255,.08);
    padding:12px 0 22px;transform:translateX(105%);
    transition:transform .26s var(--ease);max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{height:44px;border-radius:0;padding:0 22px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-link.active{background:rgba(198,242,78,.14);color:var(--accent-400)}
  .nav-links .nav-cta-mobile{display:inline-flex;margin:18px 22px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:132px 0 60px}
  .article-card{padding:32px 28px}
}
@media (min-width:992px){
  .nav-links .nav-cta-mobile{display:none!important}
}
@media (max-width:767px){
  .container{padding-inline:20px}
  body{font-size:16px}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .page-hero{padding:120px 0 48px}
  .article-card{padding:26px 20px;border-radius:14px}
  .rich-text{font-size:16px}
  .rich-text h2{font-size:23px;margin-top:32px}
  .rich-text h3{font-size:19px}
  .faq-acc .accordion-button{font-size:16px;padding:18px 18px;gap:12px}
  .faq-acc .accordion-body{padding:0 18px 20px 60px;font-size:15px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-cta{height:46px;padding:0 16px;font-size:13px;max-width:45vw;overflow:hidden;white-space:nowrap}
}
@media (max-width:519px){
  .meta-row{gap:10px 16px}
  .float-cta span{display:none}
  .float-cta{width:46px;padding:0;justify-content:center}
  .cta-band{padding:64px 0}
}

/* roulang page: category1 */
:root{
  --brand-900:#08291F;
  --brand-800:#0A3126;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --surface:#FFFDF9;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --light-text:#ECEFE9;
  --light-muted:#A9B5AC;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(11,59,46,.06), 0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#0B3B2E;
  --bs-primary-rgb:11,59,46;
  --bs-body-bg:#F6F4EE;
  --bs-body-color:#14181C;
  --bs-border-color:#E1DED3;
  --bs-border-radius:16px;
  --bs-link-color:#14684F;
  --bs-link-hover-color:#0B3B2E;
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--paper-50);
  color:var(--ink-900);
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:var(--brand-500); text-decoration:none; transition:color 200ms var(--ease); }
a:hover{ color:var(--brand-700); }
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--accent-400);
  outline-offset:2px;
}
h1,h2,h3,h4{ margin:0; letter-spacing:-.01em; color:var(--brand-900); }
p{ margin:0 0 1.2em; }
ul{ margin:0; }
.container{ width:100%; max-width:1200px; margin:0 auto; padding-left:32px; padding-right:32px; }

/* ---------- header / nav ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1030;
  background:rgba(8,41,31,.16);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background 240ms var(--ease), box-shadow 240ms var(--ease), border-color 240ms var(--ease);
}
.site-header.is-solid{
  background:var(--brand-700);
  box-shadow:var(--shadow-nav);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav-wrap{ display:flex; align-items:center; gap:20px; height:76px; transition:height 240ms var(--ease); }
.site-header.is-solid .nav-wrap{ height:64px; }
.brand{ display:inline-flex; align-items:center; gap:10px; flex-shrink:0; }
.brand-mark{
  width:38px; height:38px; border-radius:11px;
  background:var(--accent-400); color:var(--brand-900);
  display:inline-flex; align-items:center; justify-content:center; font-size:16px;
}
.brand-text{ display:flex; flex-direction:column; line-height:1.12; }
.brand-main{ font-size:17px; font-weight:800; color:var(--light-text); letter-spacing:.02em; }
.brand-sub{ font-size:11px; letter-spacing:.24em; color:var(--accent-400); }
.nav-links{ display:flex; align-items:center; gap:2px; margin-left:auto; }
.nav-link{
  position:relative; display:inline-flex; align-items:center; height:44px; padding:0 13px;
  font-size:15px; color:var(--light-text); border-radius:8px; letter-spacing:.02em; white-space:nowrap;
  transition:color 200ms var(--ease), background 200ms var(--ease);
}
.nav-link:hover{ color:var(--accent-400); background:rgba(255,255,255,.08); }
.nav-link.active{ color:var(--accent-400); }
.nav-link.active::after{
  content:""; position:absolute; left:13px; right:13px; bottom:6px; height:2px;
  border-radius:2px; background:var(--accent-400);
}
.nav-actions{ display:flex; align-items:center; gap:10px; }
.icon-btn{
  width:44px; height:44px; border-radius:10px;
  border:1px solid rgba(255,255,255,.22); background:transparent; color:var(--light-text);
  display:inline-flex; align-items:center; justify-content:center; cursor:pointer;
  transition:all 200ms var(--ease);
}
.icon-btn:hover{ border-color:var(--accent-400); color:var(--accent-400); }
.nav-search{ display:flex; align-items:center; }
.nav-search-input{
  width:0; opacity:0; padding:0; border:1px solid rgba(255,255,255,.22); border-radius:10px;
  background:rgba(255,255,255,.08); color:var(--light-text); font-size:14px; height:44px;
  font-family:inherit; transition:all 240ms var(--ease);
}
.nav-search-input::placeholder{ color:rgba(236,239,233,.55); }
.nav-search.is-open .nav-search-input{ width:200px; opacity:1; padding:0 14px; margin-left:8px; }
.nav-toggle{
  width:44px; height:44px; border-radius:10px; border:1px solid rgba(255,255,255,.22);
  background:transparent; color:var(--light-text); display:inline-flex; align-items:center;
  justify-content:center; cursor:pointer; font-size:17px; transition:all 200ms var(--ease);
}
.nav-toggle:hover{ border-color:var(--accent-400); color:var(--accent-400); }

/* ---------- buttons ---------- */
.btn-brand{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--radius-btn); border:1px solid transparent;
  background:var(--accent-400); color:var(--brand-900); font-size:15px; font-weight:700;
  cursor:pointer; white-space:nowrap;
  transition:background 200ms var(--ease), transform 200ms var(--ease), color 200ms var(--ease);
}
.btn-brand:hover{ background:var(--accent-600); color:var(--brand-900); transform:translateY(-1px); }
.btn-brand.btn-sm{ height:40px; padding:0 18px; font-size:14px; }
.btn-brand.btn-lg{ height:50px; padding:0 28px; font-size:16px; }
.btn-ghost{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:44px; padding:0 22px; border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28); background:transparent; color:var(--light-text);
  font-size:15px; font-weight:600; white-space:nowrap;
  transition:all 200ms var(--ease);
}
.btn-ghost:hover{ border-color:var(--accent-400); color:var(--accent-400); transform:translateY(-1px); }
.btn-ghost.btn-lg{ height:50px; padding:0 28px; font-size:16px; }
.btn-outline{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:50px; padding:0 26px; border-radius:var(--radius-btn);
  border:1px solid var(--line); background:var(--surface); color:var(--brand-700);
  font-size:16px; font-weight:700; white-space:nowrap;
  transition:all 200ms var(--ease);
}
.btn-outline:hover{ border-color:var(--brand-500); color:var(--brand-500); transform:translateY(-1px); }
.link-arrow{
  display:inline-flex; align-items:center; gap:8px; font-size:15px; font-weight:700; color:var(--brand-500);
}
.link-arrow i{ transition:transform 200ms var(--ease); }
.link-arrow:hover{ color:var(--brand-700); }
.link-arrow:hover i{ transform:translateX(3px); }

/* ---------- hero ---------- */
.cat-hero{
  position:relative; overflow:hidden;
  padding:158px 0 92px;
  color:var(--light-text);
  background:
    linear-gradient(115deg, rgba(8,41,31,.96) 0%, rgba(11,59,46,.84) 52%, rgba(8,41,31,.90) 100%),
    url('/assets/images/backpic/back-1.webp') center 30%/cover no-repeat;
}
.cat-hero::after{
  content:""; position:absolute; left:32px; right:32px; bottom:0; height:1px; pointer-events:none;
  background:linear-gradient(90deg, rgba(198,242,78,0), rgba(198,242,78,.5), rgba(198,242,78,0));
}
.crumb{ display:flex; flex-wrap:wrap; align-items:center; gap:9px; font-size:14px; color:var(--light-muted); margin-bottom:24px; }
.crumb a{ color:var(--light-muted); }
.crumb a:hover{ color:var(--accent-400); }
.crumb .sep{ color:rgba(169,181,172,.6); }
.crumb .current{ color:var(--accent-400); }
.cat-hero h1{
  font-size:clamp(30px,4.2vw,54px);
  line-height:1.22; font-weight:800; color:var(--light-text);
  margin:0 0 22px; max-width:900px;
}
.hero-lead{
  font-size:18px; line-height:1.9; color:#D8E0D8; max-width:760px; margin:0 0 8px;
}
.hero-points{ display:flex; flex-wrap:wrap; gap:12px; list-style:none; padding:0; margin:26px 0 32px; }
.hero-points li{
  display:inline-flex; align-items:center; gap:9px; padding:9px 16px; border-radius:999px;
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.16);
  font-size:14px; color:var(--light-text);
}
.hero-points li i{ color:var(--accent-400); font-size:12px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; }
.hero-stat{
  display:flex; flex-wrap:wrap; gap:36px; margin-top:52px; padding-top:32px;
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stat div{ min-width:120px; }
.hero-stat strong{
  display:block; font-size:26px; font-weight:800; color:var(--accent-400);
  font-variant-numeric:tabular-nums; line-height:1.3;
}
.hero-stat span{ font-size:14px; color:var(--light-muted); }

/* ---------- sections ---------- */
.section{ padding:96px 0; }
.section--tint{ background:var(--surface); }
.section-head{ max-width:780px; margin-bottom:44px; }
.section-tag{
  display:inline-flex; align-items:center; gap:9px; font-size:13px; font-weight:700;
  letter-spacing:.18em; color:var(--brand-500); margin-bottom:14px;
}
.section-tag::before{ content:""; width:22px; height:1px; background:var(--brand-500); }
.section-title{ font-size:clamp(24px,3vw,36px); line-height:1.3; font-weight:800; margin:0 0 16px; }
.section-desc{ font-size:17px; line-height:1.9; color:var(--ink-600); margin:0; max-width:700px; }

/* ---------- alternating rows ---------- */
.alt-section{ padding:0; background:var(--paper-50); }
.alt-row{ padding:76px 0; border-bottom:1px solid var(--line); }
.alt-row:last-child{ border-bottom:0; }
.alt-index{
  font-variant-numeric:tabular-nums; font-size:14px; font-weight:800; letter-spacing:.16em;
  color:var(--brand-500); display:block; margin-bottom:14px;
}
.alt-row h2{ font-size:clamp(23px,2.4vw,31px); line-height:1.34; margin:0 0 18px; }
.alt-row p{ color:var(--ink-600); }
.media-frame{
  border-radius:var(--radius-card); overflow:hidden; border:1px solid var(--line);
  box-shadow:var(--shadow-card); background:var(--surface);
}
.media-frame img{ width:100%; aspect-ratio:3/2; object-fit:cover; }
.media-note{ font-size:13px; color:var(--ink-600); line-height:1.7; margin:14px 0 0; }
.check-list{ list-style:none; padding:0; margin:0; display:grid; gap:13px; }
.check-list li{ display:flex; gap:12px; font-size:16px; line-height:1.8; color:var(--ink-600); }
.check-list li i{ color:var(--brand-500); font-size:13px; margin-top:7px; }
.pill-row{ display:flex; flex-wrap:wrap; gap:10px; margin-top:22px; }
.pill{
  display:inline-flex; align-items:center; gap:7px; padding:7px 15px; border-radius:999px;
  border:1px solid var(--line); background:var(--surface); font-size:14px; color:var(--brand-500);
}
.pill--accent{ border-color:rgba(155,211,26,.6); color:var(--brand-700); }

/* ---------- checklist cards ---------- */
.step-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:22px; }
.step-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card);
  padding:30px 28px; box-shadow:var(--shadow-card);
  transition:transform 220ms var(--ease), border-color 220ms var(--ease);
}
.step-card:hover{ transform:translateY(-3px); border-color:rgba(20,104,79,.32); }
.step-num{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:11px; margin-bottom:18px;
  background:rgba(198,242,78,.22); color:var(--brand-700);
  font-size:14px; font-weight:800; font-variant-numeric:tabular-nums;
}
.step-card h3{ font-size:20px; line-height:1.45; margin:0 0 12px; }
.step-card p{ font-size:15px; line-height:1.85; color:var(--ink-600); margin:0; }

/* ---------- faq ---------- */
.faq-wrap{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card); overflow:hidden; }
.accordion-item{ border:0; background:transparent; }
.accordion-item + .accordion-item{ border-top:1px solid var(--line); }
.accordion-button{
  display:flex; align-items:center; gap:18px; width:100%;
  padding:24px 26px; background:transparent; border:0; box-shadow:none;
  font-size:18px; font-weight:700; color:var(--ink-900); line-height:1.6; text-align:left;
  transition:background 220ms var(--ease), color 220ms var(--ease);
}
.accordion-button:not(.collapsed){ background:var(--paper-100); color:var(--brand-900); box-shadow:none; }
.accordion-button:hover{ background:var(--paper-50); }
.accordion-button::after{ display:none; }
.faq-num{
  font-size:14px; font-weight:800; letter-spacing:.1em; color:var(--brand-500);
  font-variant-numeric:tabular-nums; flex-shrink:0;
}
.faq-chev{ margin-left:auto; color:var(--brand-500); font-size:14px; flex-shrink:0; transition:transform 240ms var(--ease); }
.accordion-button:not(.collapsed) .faq-chev{ transform:rotate(90deg); }
.accordion-body{ padding:4px 26px 26px 74px; font-size:16px; line-height:1.85; color:var(--ink-600); }
.accordion-body p:last-child{ margin-bottom:0; }

/* ---------- cta band ---------- */
.cta-panel{
  position:relative; overflow:hidden; border-radius:20px; padding:64px 56px;
  color:var(--light-text);
  background:
    linear-gradient(110deg, rgba(8,41,31,.95) 0%, rgba(11,59,46,.82) 60%, rgba(8,41,31,.92) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-panel h2{ color:var(--light-text); font-size:clamp(23px,2.6vw,33px); line-height:1.35; margin:0 0 16px; }
.cta-panel p{ color:#CFD8CF; font-size:16px; margin:0 0 26px; max-width:620px; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }
.cta-side{
  border-radius:var(--radius-card); padding:26px;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12);
}
.cta-side h3{ color:var(--light-text); font-size:17px; margin:0 0 14px; }
.cta-side ul{ list-style:none; padding:0; margin:0; display:grid; gap:10px; }
.cta-side li{ display:flex; gap:10px; font-size:14px; color:#C6D0C6; line-height:1.75; }
.cta-side li i{ color:var(--accent-400); font-size:12px; margin-top:6px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--brand-900); color:var(--light-muted); padding:72px 0 0; }
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.3fr; gap:40px; }
.footer-brand{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.footer-brand-text{ display:flex; flex-direction:column; line-height:1.2; font-size:15px; font-weight:800; color:var(--light-text); }
.footer-col h4{ font-size:15px; color:var(--light-text); margin:0 0 18px; font-weight:700; }
.footer-col p{ font-size:14px; line-height:1.8; margin:0 0 10px; color:var(--light-muted); }
.footer-col a{ display:block; font-size:14px; line-height:1.9; color:var(--light-muted); margin-bottom:6px; }
.footer-col a:hover{ color:var(--accent-400); }
.footer-bottom{
  margin-top:52px; border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0; display:flex; flex-wrap:wrap; justify-content:space-between; gap:12px;
  font-size:13px; color:rgba(169,181,172,.85);
}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed; right:20px; bottom:20px; z-index:1040;
  display:inline-flex; align-items:center; gap:9px;
  height:48px; padding:0 22px; border-radius:999px;
  background:var(--accent-400); color:var(--brand-900);
  font-size:14px; font-weight:800; white-space:nowrap;
  box-shadow:0 12px 26px -12px rgba(8,41,31,.6);
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity 240ms var(--ease), transform 240ms var(--ease), visibility 240ms var(--ease), background 200ms var(--ease);
}
.float-cta.show{ opacity:1; visibility:visible; transform:translateY(0); }
.float-cta:hover{ background:var(--accent-600); color:var(--brand-900); }

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-link{ padding:0 10px; font-size:14px; }
  .nav-link.active::after{ left:10px; right:10px; }
}
@media (max-width:991.98px){
  .nav-links{
    position:fixed; left:0; right:0; top:64px; bottom:0;
    display:none; flex-direction:column; align-items:stretch; gap:0;
    margin:0; padding:14px 20px 32px; overflow-y:auto;
    background:var(--brand-900);
  }
  .nav-links.is-open{ display:flex; }
  .nav-link{
    height:52px; padding:0 12px; font-size:16px; border-radius:8px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-link.active::after{ display:none; }
  .nav-link.active{ background:rgba(198,242,78,.10); }
  .site-header{ background:rgba(8,41,31,.86); }
  .nav-wrap{ height:64px; }
  .site-header.is-solid .nav-wrap{ height:64px; }
  .nav-search.is-open .nav-search-input{ width:150px; }
  .section{ padding:72px 0; }
  .alt-row{ padding:56px 0; }
  .cta-panel{ padding:48px 32px; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:34px; }
  .cat-hero{ padding:132px 0 72px; }
}
@media (max-width:767.98px){
  body{ font-size:16px; }
  .container{ padding-left:20px; padding-right:20px; }
  .cat-hero{ padding:120px 0 60px; }
  .hero-lead{ font-size:16px; }
  .hero-stat{ gap:24px; margin-top:38px; padding-top:26px; }
  .hero-stat strong{ font-size:22px; }
  .section{ padding:60px 0; }
  .alt-row{ padding:46px 0; }
  .step-grid{ grid-template-columns:1fr; }
  .accordion-button{ padding:20px 18px; font-size:16px; gap:12px; }
  .accordion-body{ padding:2px 18px 22px 18px; }
  .cta-panel{ padding:40px 22px; border-radius:16px; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; }
}
@media (max-width:575.98px){
  .float-cta{ right:14px; bottom:14px; height:46px; padding:0 16px; font-size:13px; max-width:46vw; }
  .hero-points li{ font-size:13px; padding:8px 13px; }
  .btn-brand.btn-lg, .btn-ghost.btn-lg, .btn-outline{ width:100%; }
  .hero-actions{ gap:10px; }
}

/* roulang page: category2 */
:root{
  --brand-900:#08291F;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --dark-text:#ECEFE9;
  --dark-muted:#A9B5AC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(11,59,46,.06),0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:#F6F4EE;
  --bs-body-color:#14181C;
  --bs-primary:#0B3B2E;
  --bs-primary-rgb:11,59,46;
  --bs-border-color:#E1DED3;
  --bs-border-radius:10px;
  --bs-link-color:#14684F;
  --bs-link-hover-color:#0B3B2E;
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--paper-50);
  color:var(--ink-900);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;color:var(--brand-700);line-height:1.28;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding:0 32px;margin:0 auto;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(8,41,31,.20);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--brand-700);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:var(--shadow-nav);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:76px;transition:height .24s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--dark-text);text-decoration:none;flex:0 0 auto;}
.brand:hover{color:var(--dark-text);text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--accent-400);color:var(--brand-900);font-size:17px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:800;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--dark-muted);letter-spacing:.22em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  color:var(--dark-text);font-size:14.5px;letter-spacing:.02em;padding:10px 14px;border-radius:9px;
  transition:background .22s var(--ease),color .22s var(--ease);white-space:nowrap;
}
.nav-link:hover{background:rgba(255,255,255,.10);color:#fff;text-decoration:none;}
.nav-link.active{background:rgba(198,242,78,.16);color:var(--accent-400);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{display:flex;align-items:center;position:relative;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.20);
  background:rgba(255,255,255,.06);color:var(--dark-text);cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.34);}
.nav-search-input{
  position:absolute;right:48px;top:50%;transform:translateY(-50%);
  width:0;opacity:0;pointer-events:none;
  height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:rgba(8,41,31,.72);color:var(--dark-text);padding:0 14px;font-size:14px;
  transition:width .26s var(--ease),opacity .26s var(--ease);
}
.nav-search.is-open .nav-search-input{width:210px;opacity:1;pointer-events:auto;}
.nav-search-input::placeholder{color:var(--dark-muted);}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--accent-400);color:var(--brand-900);font-weight:700;font-size:14px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  transition:background .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);
  cursor:pointer;
}
.btn-brand:hover{background:var(--accent-600);color:var(--brand-900);transform:translateY(-1px);text-decoration:none;}
.btn-brand.btn-sm{padding:9px 16px;font-size:13.5px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:transparent;color:var(--dark-text);border:1px solid rgba(255,255,255,.28);
  padding:12px 22px;border-radius:var(--radius-btn);font-weight:600;font-size:14px;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-1px);text-decoration:none;}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:transparent;color:var(--brand-700);border:1px solid var(--line);
  padding:12px 22px;border-radius:var(--radius-btn);font-weight:600;font-size:14px;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-line:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-1px);text-decoration:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);font-weight:700;font-size:14.5px;
  background:none;border:none;padding:6px 0;cursor:pointer;
}
.btn-text i{transition:transform .22s var(--ease);}
.btn-text:hover i{transform:translateX(3px);}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.07);color:var(--dark-text);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,.16);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--brand-900);color:var(--dark-text);
  padding:158px 0 88px;
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(8,41,31,.94) 0%,rgba(8,41,31,.78) 48%,rgba(11,59,46,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--dark-muted);margin-bottom:26px;}
.crumb a{color:var(--dark-muted);}
.crumb a:hover{color:var(--accent-400);text-decoration:none;}
.crumb .sep{color:rgba(255,255,255,.32);}
.crumb .current{color:var(--dark-text);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--accent-400);border:1px solid rgba(198,242,78,.42);background:rgba(198,242,78,.10);
  margin-bottom:22px;
}
.page-hero h1{
  color:#fff;font-size:50px;line-height:1.2;letter-spacing:-.015em;max-width:880px;
  margin-bottom:20px;
}
.page-hero .hero-lead{
  font-size:19px;color:var(--dark-text);max-width:700px;margin-bottom:16px;line-height:1.8;
}
.page-hero .hero-desc{
  font-size:15.5px;color:var(--dark-muted);max-width:720px;margin-bottom:34px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-points{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  max-width:900px;
}
.hero-point{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);padding:18px 20px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.02);
}
.hero-point strong{display:block;font-size:15px;color:#fff;margin-bottom:6px;}
.hero-point span{font-size:13.5px;color:var(--dark-muted);line-height:1.8;display:block;}

/* ---------- 通用区块 ---------- */
.section{padding:104px 0;}
.section.tight{padding:80px 0;}
.section.on-paper{background:var(--paper-50);}
.section.on-white{background:#fff;}
.section.on-dark{background:var(--brand-900);color:var(--dark-text);}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.18em;
  color:var(--brand-500);margin-bottom:14px;text-transform:uppercase;
}
.section.on-dark .section-head .eyebrow{color:var(--accent-400);}
.section-head h2{font-size:34px;margin-bottom:14px;}
.section.on-dark .section-head h2{color:#fff;}
.section-head p{font-size:16px;color:var(--ink-600);margin:0;}
.section.on-dark .section-head p{color:var(--dark-muted);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 时间线 ---------- */
.timeline-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:56px;align-items:start;}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:15px;top:8px;bottom:8px;width:1px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:38px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:-34px;top:2px;width:32px;height:32px;border-radius:9px;
  background:var(--brand-700);color:var(--accent-400);
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.02em;
}
.tl-item h3{font-size:21px;margin-bottom:10px;}
.tl-item p{font-size:15.5px;color:var(--ink-600);margin-bottom:12px;}
.tl-item .tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid rgba(20,104,79,.28);background:rgba(20,104,79,.07);color:var(--brand-500);
}
.chip.warn{border-color:rgba(255,122,47,.34);background:rgba(255,122,47,.08);color:#C4550F;}
.sticky-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.sticky-card img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:0;}
.sticky-card .sc-body{padding:24px 26px 28px;}
.sticky-card h3{font-size:19px;margin-bottom:12px;}
.sticky-card p{font-size:14.5px;color:var(--ink-600);margin-bottom:16px;}
.check-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-600);line-height:1.8;padding:8px 0;
  border-top:1px solid var(--line);
}
.check-list li:first-child{border-top:0;}
.check-list i{color:var(--brand-500);margin-top:6px;font-size:12px;}
.sticky-card .sc-cta{margin-top:18px;}

/* ---------- 指标带 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
}
.metric{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);padding:26px 24px;
}
.metric .val{
  font-size:36px;font-weight:800;color:var(--accent-400);letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.metric .val small{font-size:15px;font-weight:600;margin-left:4px;color:var(--dark-muted);}
.metric .label{font-size:14.5px;color:var(--dark-text);margin-top:10px;font-weight:600;}
.metric .note{font-size:13px;color:var(--dark-muted);margin-top:4px;}

/* ---------- 功能模块 ---------- */
.feature-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:stretch;}
.info-card{
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-card);height:100%;
}
.info-card img{border-radius:var(--radius-img);aspect-ratio:16/9;object-fit:cover;margin-bottom:20px;}
.info-card h3{font-size:22px;margin-bottom:12px;}
.info-card p{font-size:15.5px;color:var(--ink-600);margin-bottom:16px;}
.plain-list li{
  font-size:15px;color:var(--ink-600);padding:9px 0 9px 24px;position:relative;border-bottom:1px dashed var(--line);
}
.plain-list li:last-child{border-bottom:0;}
.plain-list li::before{
  content:"";position:absolute;left:0;top:18px;width:8px;height:8px;border-radius:3px;background:var(--accent-600);
}
.stack-cards{display:grid;gap:24px;}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-card);transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(20,104,79,.34);}
.mini-card .mc-head{display:flex;align-items:center;gap:12px;margin-bottom:10px;}
.mini-card .mc-idx{
  width:30px;height:30px;border-radius:8px;background:var(--paper-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:12.5px;font-weight:800;flex:0 0 auto;
}
.mini-card h3{font-size:19px;}
.mini-card p{font-size:14.5px;color:var(--ink-600);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--paper-50);border:1px solid var(--line)!important;border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:var(--paper-50);color:var(--brand-700);font-size:18px;font-weight:700;
  padding:20px 22px;gap:14px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){background:var(--paper-100);color:var(--brand-700);}
.accordion-button::after{
  background-image:none;content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;width:auto;height:auto;transition:transform .24s var(--ease);color:var(--brand-500);
}
.accordion-button:not(.collapsed)::after{transform:rotate(90deg);color:var(--brand-700);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-idx{
  font-variant-numeric:tabular-nums;font-size:14px;font-weight:800;color:var(--brand-500);
  border:1px solid rgba(20,104,79,.28);border-radius:8px;padding:2px 9px;flex:0 0 auto;
}
.accordion-body{padding:4px 22px 22px;font-size:15.5px;color:var(--ink-600);background:var(--paper-100);}

/* ---------- CTA 区 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);color:var(--dark-text);
  padding:96px 0;
}
.cta-band .cta-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band .container{position:relative;z-index:2;}
.cta-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:56px;align-items:center;}
.cta-grid h2{color:#fff;font-size:34px;margin-bottom:16px;}
.cta-grid p{color:var(--dark-muted);font-size:16px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.form-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);padding:28px 26px;backdrop-filter:blur(8px);
}
.form-card h3{color:#fff;font-size:19px;margin-bottom:18px;}
.form-card .field{margin-bottom:16px;}
.form-card label{display:block;font-size:13.5px;color:var(--dark-muted);margin-bottom:8px;}
.form-card .form-control{
  width:100%;height:48px;border-radius:10px;border:1px solid rgba(255,255,255,.20);
  background:rgba(8,41,31,.55);color:#fff;font-size:14.5px;padding:0 14px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-card textarea.form-control{height:auto;padding:12px 14px;resize:vertical;min-height:96px;line-height:1.7;}
.form-card .form-control::placeholder{color:rgba(169,181,172,.75);}
.form-card .form-control:focus{
  border-color:var(--accent-400);box-shadow:0 0 0 4px rgba(198,242,78,.16);outline:none;background:rgba(8,41,31,.75);
}
.form-card .btn-brand{width:100%;padding:14px 20px;font-size:15px;}
.form-note{font-size:12.5px;color:var(--dark-muted);margin:12px 0 0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--dark-muted);padding:78px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:52px;}
.footer-col h4{font-size:15px;color:var(--dark-text);margin-bottom:18px;font-weight:700;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:10px;}
.footer-col a{display:block;color:var(--dark-muted);font-size:14px;line-height:1.8;padding:5px 0;transition:color .22s var(--ease);}
.footer-col a:hover{color:var(--accent-400);text-decoration:none;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2;color:var(--dark-text);}
.footer-brand-text span:first-child{font-size:16px;font-weight:800;}
.footer-brand-text span:last-child{font-size:11px;letter-spacing:.22em;color:var(--dark-muted);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(169,181,172,.9);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--accent-400);color:var(--brand-900);font-size:14px;font-weight:700;
  box-shadow:0 10px 26px -12px rgba(8,41,31,.55);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .26s var(--ease),transform .26s var(--ease),background .22s var(--ease);
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:44px;}
  .timeline-layout{gap:40px;}
}
@media (max-width:991.98px){
  html{scroll-padding-top:80px;}
  .container{padding:0 24px;}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--brand-900);padding:14px 22px 40px;
    overflow-y:auto;display:none;margin-left:0;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .nav-links.open{display:flex;}
  .nav-link{font-size:16px;line-height:44px;padding:0 8px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;}
  .nav-link.active{background:transparent;color:var(--accent-400);}
  .nav-search-input{position:static;transform:none;width:100%;opacity:1;pointer-events:auto;margin-left:8px;}
  .nav-search{flex:1 1 auto;}
  .nav-search-input{display:none;}
  .nav-search.is-open .nav-search-input{display:block;width:100%;}
  .site-header{background:var(--brand-700);}
  .page-hero{padding:132px 0 72px;}
  .page-hero h1{font-size:34px;}
  .page-hero .hero-lead{font-size:17px;}
  .hero-points{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding:72px 0;}
  .section.tight{padding:60px 0;}
  .section-head h2{font-size:27px;}
  .timeline-layout{grid-template-columns:1fr;gap:36px;}
  .sticky-card{position:static;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .nav-wrap{gap:14px;}
  .brand-main{font-size:15.5px;}
  .page-hero{padding:122px 0 60px;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-desc{font-size:14.5px;}
  .hero-points{grid-template-columns:1fr;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .metrics{grid-template-columns:1fr;}
  .metric .val{font-size:30px;}
  .tl-item h3{font-size:19px;}
  .accordion-button{font-size:16px;padding:18px 16px;}
  .accordion-body{padding:4px 16px 20px;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .float-cta{max-width:46vw;padding:0 16px;font-size:13px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --brand-900:#08291F;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --dark-text:#ECEFE9;
  --dark-text-soft:#A9B5AC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(11,59,46,.06), 0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:var(--paper-50);
  --bs-body-color:var(--ink-900);
  --bs-primary:var(--brand-500);
  --bs-primary-rgb:20,104,79;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius-btn);
  --bs-link-color:var(--brand-500);
  --bs-link-hover-color:var(--brand-700);
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--paper-50);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
p{margin:0 0 1.2em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--brand-700);letter-spacing:-.01em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  background:rgba(8,41,31,.18);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.scrolled{
  height:64px;
  background:var(--brand-700);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:var(--shadow-nav);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-400);color:var(--brand-900);font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:18px;font-weight:700;color:var(--dark-text);letter-spacing:.02em;}
.brand-sub{font-size:11px;letter-spacing:.22em;color:var(--accent-400);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--radius-btn);
  font-size:15px;letter-spacing:.02em;color:var(--dark-text);
  transition:color .22s var(--ease),background-color .22s var(--ease);
}
.nav-link:hover{color:var(--accent-400);background:rgba(255,255,255,.06);text-decoration:none;}
.nav-link.active{color:var(--accent-400);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--accent-400);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--dark-text);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:var(--accent-400);border-color:rgba(198,242,78,.5);}
.nav-search-input{
  width:0;opacity:0;padding:0;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:var(--dark-text);height:40px;border-radius:var(--radius-btn);font-size:14px;
  transition:width .26s var(--ease),opacity .26s var(--ease),padding .26s var(--ease);
}
.nav-search-input::placeholder{color:rgba(236,239,233,.65);}
.nav-search.open .nav-search-input{width:190px;opacity:1;padding:0 12px;}
.nav-toggle{
  width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.22);
  background:transparent;color:var(--dark-text);cursor:pointer;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(255,255,255,.12);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent-400);color:var(--brand-900);
  border:1px solid var(--accent-400);border-radius:var(--radius-btn);
  padding:14px 28px;font-size:15px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;text-decoration:none;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),color .22s var(--ease);
}
.btn-brand:hover{background:var(--accent-600);border-color:var(--accent-600);color:var(--brand-900);transform:translateY(-1px);text-decoration:none;}
.btn-brand.btn-sm{padding:10px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand-700);border:1px solid var(--line);
  border-radius:var(--radius-btn);padding:13px 26px;font-size:15px;font-weight:600;
  cursor:pointer;text-decoration:none;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-1px);text-decoration:none;}
.btn-ghost.on-dark{color:var(--dark-text);border-color:rgba(255,255,255,.28);}
.btn-ghost.on-dark:hover{color:var(--accent-400);border-color:var(--accent-400);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-500);
  background:none;border:0;padding:6px 0;cursor:pointer;
}
.btn-text i{transition:transform .22s var(--ease);}
.btn-text:hover i{transform:translateX(3px);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;padding:170px 0 92px;color:var(--dark-text);
  background:linear-gradient(105deg,rgba(8,41,31,.92),rgba(11,59,46,.72)),
             url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.12);
}
.page-hero .eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.16em;
  color:var(--accent-400);text-transform:uppercase;margin-bottom:18px;
}
.page-hero .eyebrow::before{content:"";width:34px;height:1px;background:var(--accent-400);}
.page-hero h1{
  font-size:52px;line-height:1.22;color:#fff;letter-spacing:-.01em;margin-bottom:18px;max-width:16em;
}
.page-hero h1 em{font-style:normal;color:var(--accent-400);}
.page-hero p{max-width:760px;color:var(--dark-text-soft);font-size:17px;margin-bottom:0;}
.breadcrumb-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--dark-text-soft);margin-bottom:26px;
}
.breadcrumb-bar a{color:var(--dark-text-soft);}
.breadcrumb-bar a:hover{color:var(--accent-400);}
.breadcrumb-bar .sep{color:rgba(236,239,233,.45);}
.breadcrumb-bar .current{color:var(--dark-text);}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;}
.hero-meta .meta-item{display:flex;align-items:baseline;gap:8px;}
.hero-meta .num{font-size:26px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;}
.hero-meta .lbl{font-size:14px;color:var(--dark-text-soft);}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--paper-100);}
.section-head{max-width:800px;margin-bottom:40px;}
.section-head h2{font-size:34px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--ink-600);font-size:16px;margin:0;}
.section-tag{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);margin-bottom:12px;
}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start;}
.intro-lead p{font-size:17px;color:var(--ink-600);}
.intro-lead p:last-child{margin-bottom:0;}
.intro-points{display:grid;gap:14px;}
.point-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
}
.point-card .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;background:var(--brand-700);color:var(--accent-400);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.point-card h3{font-size:19px;margin-bottom:6px;}
.point-card p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0;}

/* ---------- Filter chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
}
.chip.is-active{background:var(--accent-400);border-color:var(--accent-400);color:var(--brand-900);}
.chip.ghost-accent{border-color:rgba(155,211,26,.6);color:var(--brand-500);background:rgba(198,242,78,.16);}

/* ---------- Channel cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.channel-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.channel-card:hover{transform:translateY(-3px);border-color:rgba(20,104,79,.28);box-shadow:0 1px 2px rgba(11,59,46,.06),0 18px 34px -20px rgba(11,59,46,.42);}
.channel-card .thumb{aspect-ratio:16/9;overflow:hidden;}
.channel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.channel-card:hover .thumb img{transform:scale(1.03);}
.channel-card .body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.channel-card .badge-pill{
  align-self:flex-start;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(198,242,78,.2);border:1px solid rgba(155,211,26,.5);color:var(--brand-700);
  margin-bottom:14px;
}
.channel-card h3{font-size:21px;line-height:1.45;margin-bottom:10px;}
.channel-card p{font-size:15px;line-height:1.8;color:var(--ink-600);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.channel-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);}
.channel-card .meta-time{font-size:13px;color:var(--ink-600);font-variant-numeric:tabular-nums;}
.channel-card.featured{grid-column:1 / -1;flex-direction:row;}
.channel-card.featured .thumb{flex:0 0 46%;aspect-ratio:auto;min-height:320px;}
.channel-card.featured .body{padding:36px 40px;}
.channel-card.featured h3{font-size:26px;}
.channel-card.featured p{-webkit-line-clamp:3;font-size:16px;}
.card-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--brand-500);}
.card-arrow i{transition:transform .22s var(--ease);}
.channel-card:hover .card-arrow i{transform:translateX(3px);}

/* ---------- Stat strip ---------- */
.stat-strip{
  background:var(--brand-900);color:var(--dark-text);
  border-radius:var(--radius-card);padding:52px 44px;
  background-image:linear-gradient(rgba(8,41,31,.94),rgba(8,41,31,.94)),
                   url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
}
.stat-strip h2{color:#fff;font-size:30px;margin-bottom:12px;}
.stat-strip .sub{color:var(--dark-text-soft);font-size:16px;max-width:660px;margin-bottom:36px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-item{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;}
.stat-item .val{font-size:38px;font-weight:700;color:var(--accent-400);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-item .val small{font-size:16px;margin-left:4px;color:var(--dark-text-soft);font-weight:600;}
.stat-item .desc{font-size:14px;color:var(--dark-text-soft);line-height:1.75;margin:8px 0 0;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;color:var(--dark-text);border-radius:var(--radius-card);overflow:hidden;
  padding:60px 48px;
  background-image:linear-gradient(100deg,rgba(8,41,31,.94),rgba(11,59,46,.78)),
                   url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cta-band .cta-inner{display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:center;}
.cta-band h2{color:#fff;font-size:32px;line-height:1.32;margin-bottom:14px;}
.cta-band p{color:var(--dark-text-soft);font-size:16px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-side{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);padding:24px 26px;}
.cta-side h4{color:#fff;font-size:17px;margin-bottom:10px;}
.cta-side p{font-size:14px;color:var(--dark-text-soft);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-accordion .accordion-item{
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-card)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:none;
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--brand-700);font-size:18px;font-weight:700;
  padding:22px 26px;display:flex;align-items:center;gap:16px;box-shadow:none;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--paper-100);color:var(--brand-700);}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-400);outline-offset:-2px;}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-500);width:auto;height:auto;transition:transform .26s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(90deg);color:var(--brand-500);}
.faq-num{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--brand-500);letter-spacing:.06em;}
.faq-accordion .accordion-body{
  padding:8px 26px 24px 66px;font-size:16px;line-height:1.9;color:var(--ink-600);background:var(--paper-50);
}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:var(--dark-text);padding:76px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.15;}
.footer-brand-text span:first-child{font-size:18px;font-weight:700;color:var(--dark-text);}
.footer-brand-text span:last-child{font-size:11px;letter-spacing:.22em;color:var(--accent-400);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em;}
.footer-col p{font-size:14px;line-height:1.85;color:var(--dark-text-soft);margin:0 0 10px;}
.footer-col a{display:block;font-size:14px;line-height:1.9;color:var(--dark-text-soft);padding:3px 0;}
.footer-col a:hover{color:var(--accent-400);text-decoration:none;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--dark-text-soft);
}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--accent-400);color:var(--brand-900);font-size:14px;font-weight:700;
  box-shadow:0 12px 26px -12px rgba(8,41,31,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s,background-color .22s var(--ease);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:46px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
}
@media (max-width:991.98px){
  .container{padding:0 24px;}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;z-index:1029;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--brand-900);padding:10px 20px 22px;
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 18px 32px -18px rgba(8,41,31,.7);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{min-height:48px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;padding:0 4px;}
  .nav-link.active::after{left:4px;right:auto;width:22px;bottom:10px;}
  .nav-links .btn-brand{margin-top:16px;width:100%;}
  .section{padding:72px 0;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .card-grid{grid-template-columns:1fr;}
  .channel-card.featured{flex-direction:column;}
  .channel-card.featured .thumb{flex:none;min-height:0;aspect-ratio:16/9;}
  .channel-card.featured .body{padding:26px;}
  .cta-band{padding:44px 28px;}
  .cta-band .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .site-header{height:64px;}
  .brand-main{font-size:16px;}
  .page-hero{padding:140px 0 68px;}
  .page-hero h1{font-size:31px;}
  .page-hero p{font-size:15px;}
  .hero-meta{gap:20px;}
  .hero-meta .num{font-size:22px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:25px;}
  .stat-strip{padding:36px 24px;}
  .stat-strip h2{font-size:24px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item .val{font-size:32px;}
  .cta-band h2{font-size:23px;}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 18px;gap:10px;}
  .faq-accordion .accordion-body{padding:4px 18px 20px 50px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .float-cta{height:46px;padding:0 16px;font-size:13px;}
  .nav-search.open .nav-search-input{width:130px;}
}

/* roulang page: category4 */
:root{
  --brand-900:#08291F;
  --brand-700:#0B3B2E;
  --brand-500:#14684F;
  --accent-400:#C6F24E;
  --accent-600:#9BD31A;
  --warn-500:#FF7A2F;
  --paper-50:#F6F4EE;
  --paper-100:#EDEAE0;
  --ink-900:#14181C;
  --ink-600:#4E574F;
  --line:#E1DED3;
  --dark-text:#ECEFE9;
  --dark-muted:#A9B5AC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(11,59,46,.06),0 12px 28px -18px rgba(11,59,46,.28);
  --shadow-nav:0 8px 24px -12px rgba(8,41,31,.35);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-body-bg:var(--paper-50);
  --bs-body-color:var(--ink-900);
  --bs-primary:var(--brand-500);
  --bs-primary-rgb:20,104,79;
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius-btn);
  --bs-link-color:var(--brand-500);
  --bs-link-hover-color:var(--brand-700);
  --bs-font-sans-serif:system-ui,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--paper-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28;color:inherit;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-400);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:32px;padding-right:32px;}
.nums{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  background:rgba(8,41,31,.16);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.18);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:var(--brand-700);
  box-shadow:var(--shadow-nav);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-400);color:var(--brand-900);font-size:17px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{color:var(--accent-400);font-size:11px;letter-spacing:.24em;font-weight:600;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;color:var(--dark-text);font-size:15px;letter-spacing:.02em;
  padding:6px 0;white-space:nowrap;
}
.nav-link:hover{color:#fff;text-decoration:none;}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--accent-400);transition:right .24s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{right:0;}
.nav-link.active{color:var(--accent-400);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;align-items:center;}
.icon-btn{
  width:40px;height:40px;border:1px solid rgba(255,255,255,.22);background:transparent;
  color:var(--dark-text);border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.38);}
.nav-search-input{
  width:0;opacity:0;padding:0;border:1px solid transparent;height:40px;border-radius:999px;
  background:rgba(255,255,255,.12);color:#fff;font-size:14px;
  transition:width .24s var(--ease),opacity .2s var(--ease),padding .24s var(--ease);
}
.nav-search-input::placeholder{color:rgba(255,255,255,.6);}
.nav-search-input:focus{outline:none;border-color:var(--accent-400);background:rgba(255,255,255,.18);}
.nav-search.is-open .nav-search-input{width:176px;opacity:1;padding:0 16px;margin-left:8px;}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-400);color:var(--brand-900);
  border:0;border-radius:var(--radius-btn);padding:14px 28px;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-brand:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}
.btn-brand.btn-sm{padding:10px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--dark-text);
  border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-btn);
  padding:14px 28px;font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--accent-400);color:var(--accent-400);text-decoration:none;transform:translateY(-1px);}
.link-btn{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);
  font-weight:600;font-size:15px;
}
.link-btn i{transition:transform .22s var(--ease);}
.link-btn:hover{color:var(--brand-700);text-decoration:none;}
.link-btn:hover i{transform:translateX(3px);}
.nav-toggle{
  width:44px;height:44px;border:1px solid rgba(255,255,255,.22);background:transparent;
  color:#fff;border-radius:11px;font-size:18px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(8,41,31,.55);z-index:1035;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
body.nav-open .nav-backdrop{opacity:1;visibility:visible;}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:var(--dark-text);
  background:var(--brand-900);
  padding:158px 0 88px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,41,31,.78) 0%,rgba(8,41,31,.62) 55%,rgba(11,59,46,.92) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--dark-muted);margin-bottom:22px;}
.crumb a{color:var(--dark-muted);}
.crumb a:hover{color:var(--accent-400);text-decoration:none;}
.crumb-sep{opacity:.6;}
.crumb-cur{color:var(--accent-400);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);
  color:#fff;line-height:1.22;letter-spacing:-.01em;
  max-width:16em;
}
.hero-sub{
  margin-top:18px;font-size:clamp(16px,1.6vw,19px);
  color:var(--dark-text);opacity:.94;max-width:32em;line-height:1.8;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(198,242,78,.42);background:rgba(198,242,78,.10);
  color:var(--accent-400);border-radius:999px;padding:8px 16px;font-size:14px;letter-spacing:.01em;
}

/* ============ 通用板块 ============ */
.section{padding:104px 0;}
.section.alt{background:var(--paper-100);}
.section.dark{background:var(--brand-900);color:var(--dark-text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:16px;
}
.section.dark .eyebrow{color:var(--accent-400);}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
.section-lead{margin-top:14px;color:var(--ink-600);font-size:16px;line-height:1.9;}
.section.dark .section-lead{color:var(--dark-muted);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 引导列 ============ */
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{
  position:relative;padding-left:34px;font-size:16px;color:var(--ink-600);line-height:1.85;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:3px;width:22px;height:22px;border-radius:7px;
  background:var(--accent-400);color:var(--brand-900);font-size:11px;
  display:flex;align-items:center;justify-content:center;
}
.check-list strong{color:var(--ink-900);font-weight:600;}
.guide-figure{
  margin:32px 0 0;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);background:#fff;
}
.guide-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ============ FAQ 手风琴 ============ */
.faq-panel{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:10px 26px;box-shadow:var(--shadow-card);
}
.faq-panel .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);}
.faq-panel .accordion-item:first-child{border-top:0;}
.faq-panel .accordion-button{
  background:transparent;box-shadow:none;border-radius:0;
  display:flex;align-items:center;gap:16px;
  padding:22px 0;font-size:18px;font-weight:600;color:var(--ink-900);
  transition:background .22s var(--ease),color .22s var(--ease),padding .22s var(--ease);
}
.faq-panel .accordion-button:not(.collapsed){
  background:var(--paper-100);color:var(--brand-700);
  padding-left:14px;padding-right:14px;border-radius:10px;
}
.faq-panel .accordion-button:focus{box-shadow:none;border-color:transparent;}
.acc-num{
  flex:0 0 30px;font-size:13px;font-weight:700;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.faq-panel .accordion-button:not(.collapsed) .acc-num{color:var(--brand-700);}
.acc-title{flex:1;}
.faq-panel .accordion-button::after{
  content:"";width:9px;height:9px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  background-image:none;transform:rotate(45deg);
  transition:transform .24s var(--ease);
}
.faq-panel .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-panel .accordion-body{
  padding:0 14px 24px 46px;color:var(--ink-600);font-size:15.5px;line-height:1.9;
}

/* ============ 对比表 ============ */
.table-frame{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-card);}
.table-scroll{overflow-x:auto;}
.compare-table{width:100%;min-width:640px;border-collapse:collapse;}
.compare-table th{
  background:var(--brand-700);color:var(--dark-text);
  font-size:15px;font-weight:600;letter-spacing:.04em;
  padding:18px 24px;text-align:left;white-space:nowrap;
}
.compare-table td{
  padding:18px 24px;border-top:1px solid var(--line);
  font-size:15px;color:var(--ink-600);line-height:1.8;vertical-align:top;
}
.compare-table td:first-child{width:38%;color:var(--ink-900);font-weight:600;}
.compare-table tbody tr{transition:background .2s var(--ease);}
.compare-table tbody tr:hover{background:rgba(198,242,78,.10);}
.warn-dot{color:var(--warn-500);margin-right:8px;}

/* ============ 情形卡 ============ */
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;display:flex;gap:20px;align-items:flex-start;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.case-card + .case-card{margin-top:18px;}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:#D3D0C4;}
.case-icon{
  flex:0 0 46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:var(--paper-100);color:var(--brand-700);font-size:17px;
}
.case-card:hover .case-icon{background:var(--accent-400);color:var(--brand-900);}
.case-card h3{font-size:19px;margin-bottom:8px;}
.case-card p{font-size:15px;color:var(--ink-600);line-height:1.85;}
.side-card{
  background:var(--brand-900);color:var(--dark-text);border-radius:var(--radius-card);
  padding:30px 28px;box-shadow:0 0 0 1px rgba(255,255,255,.10) inset;
}
.side-card h3{color:#fff;font-size:20px;margin-bottom:14px;}
.side-card p{color:var(--dark-muted);font-size:15px;line-height:1.85;}
.side-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.side-list li{
  display:flex;gap:12px;font-size:15px;color:var(--dark-text);line-height:1.75;
}
.side-list i{color:var(--accent-400);margin-top:6px;font-size:12px;}
.side-mail{
  margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;color:var(--accent-400);font-variant-numeric:tabular-nums;
}

/* ============ 页内目录 ============ */
.toc-wrap{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.toc-item{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:12px 20px;font-size:15px;color:var(--ink-900);font-weight:600;
  transition:border-color .22s var(--ease),background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.toc-item:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;transform:translateY(-1px);}
.toc-item i{color:var(--brand-500);font-size:13px;}
.toc-item:hover i{color:var(--accent-600);}

/* ============ CTA ============ */
.cta-section{position:relative;padding:0 0 104px;}
.cta-box{
  position:relative;overflow:hidden;border-radius:22px;
  background:var(--brand-900);color:var(--dark-text);
  padding:64px 56px;
}
.cta-box::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-box::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,41,31,.94) 0%,rgba(8,41,31,.72) 60%,rgba(11,59,46,.86) 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:34px;align-items:center;justify-content:space-between;}
.cta-copy{flex:1 1 420px;}
.cta-copy h2{font-size:clamp(22px,2.5vw,30px);color:#fff;line-height:1.35;}
.cta-copy p{margin-top:12px;color:var(--dark-muted);font-size:15.5px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:20px;bottom:20px;z-index:1050;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--accent-400);color:var(--brand-900);
  font-size:14px;font-weight:700;white-space:nowrap;
  box-shadow:0 12px 28px -12px rgba(8,41,31,.55);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),background .22s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--accent-600);color:var(--brand-900);text-decoration:none;transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:var(--dark-muted);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.2;}
.footer-brand-text span:first-child{color:#fff;font-size:17px;font-weight:700;letter-spacing:.02em;}
.footer-brand-text span:last-child{color:var(--accent-400);font-size:11px;letter-spacing:.24em;font-weight:600;}
.footer-col h4{font-size:15px;color:var(--dark-text);margin-bottom:18px;letter-spacing:.04em;font-weight:600;}
.footer-col p{font-size:14px;line-height:1.85;margin-bottom:12px;}
.footer-col a{display:block;font-size:14px;color:var(--dark-muted);line-height:1.8;padding:5px 0;}
.footer-col a:hover{color:var(--accent-400);text-decoration:none;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13.5px;color:var(--dark-muted);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    background:var(--brand-900);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;
    transform:translateX(100%);transition:transform .28s var(--ease);
    overflow-y:auto;z-index:1040;border-left:1px solid rgba(255,255,255,.08);
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-link{padding:0;height:48px;display:flex;align-items:center;font-size:15.5px;border-bottom:1px solid rgba(255,255,255,.08);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--accent-400);}
  .nav-toggle{display:inline-flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:80px 0;}
  .page-hero{padding:134px 0 68px;}
  .cta-box{padding:48px 34px;}
  .cta-section{padding-bottom:80px;}
}
@media (max-width:767.98px){
  .container{padding-left:22px;padding-right:22px;}
  body{font-size:16px;}
  .nav-search{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:118px 0 56px;}
  .hero-sub{font-size:16px;}
  .faq-panel{padding:6px 18px;}
  .faq-panel .accordion-button{font-size:16.5px;padding:18px 0;gap:12px;}
  .faq-panel .accordion-body{padding:0 6px 20px 42px;font-size:15px;}
  .compare-table th,.compare-table td{padding:14px 16px;}
  .case-card{padding:22px 20px;gap:16px;}
  .side-card{padding:26px 22px;}
  .cta-box{padding:38px 24px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-main{font-size:15.5px;}
  .brand-sub{font-size:10px;letter-spacing:.2em;}
  .brand-mark{width:34px;height:34px;flex-basis:34px;font-size:15px;}
  .btn-brand,.btn-ghost{padding:13px 22px;font-size:14.5px;width:100%;justify-content:center;}
  .cta-actions{width:100%;}
  .float-cta{max-width:46vw;padding:0 14px;font-size:13px;height:46px;}
  .hero-tag{font-size:13px;padding:7px 13px;}
  .toc-item{width:100%;justify-content:space-between;}
}