/* roulang page: index */
:root{
  --brand:#0F8F7A;
  --brand-deep:#0B7C6B;
  --brand-soft:#19B39A;
  --brand-tint:rgba(15,143,122,.08);
  --accent:#F4A261;
  --accent-deep:#E07B2C;
  --ink:#14201E;
  --muted:#55635F;
  --bg:#F6F8F7;
  --line:#E3EAE7;
  --line-strong:#D9E3DF;
  --card:#FFFFFF;
  --dark:#0C2B26;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(20,32,30,.06);
  --shadow-md:0 10px 30px rgba(15,143,122,.10), 0 2px 8px rgba(20,32,30,.06);
  --shadow-lg:0 18px 44px rgba(15,143,122,.18), 0 4px 14px rgba(20,32,30,.08);
  --grad:linear-gradient(135deg,#0B7C6B 0%,#19B39A 56%,#F4A261 120%);
  --container:1200px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow","Inter",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-deep);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--brand-soft);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:3px solid rgba(25,179,154,.35);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:.2px;}
h1{font-size:42px;}
h2{font-size:30px;}
h3{font-size:22px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
::selection{background:rgba(25,179,154,.25);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand-deep);text-transform:uppercase;margin-bottom:14px;}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(20,32,30,.08);border-bottom-color:var(--line);}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:76px;gap:16px;}
.nav-left{display:flex;justify-content:flex-end;align-items:center;gap:6px;}
.nav-right{display:flex;justify-content:flex-start;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--muted);
  white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-tint);}
.nav-link.active{color:var(--brand-deep);font-weight:700;background:var(--brand-tint);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--grad);
}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
  box-shadow:0 6px 16px rgba(15,143,122,.28);flex:none;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
}
.mobile-cta{display:none;}
.mobile-drawer{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  cursor:pointer;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(15,143,122,.26);}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(15,143,122,.34);}
.btn-primary:active{transform:translateY(0) scale(.995);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.66);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff;}
.btn-outline{background:#fff;border-color:var(--brand);color:var(--brand-deep);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;pointer-events:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(11,124,107,.94) 0%,rgba(25,179,154,.80) 54%,rgba(244,162,97,.68) 120%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  min-height:600px;padding-top:64px;padding-bottom:64px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  font-size:14px;font-weight:600;letter-spacing:.5px;margin-bottom:22px;
}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(244,162,97,.28);}
.hero h1{color:#fff;margin-bottom:18px;text-shadow:0 2px 18px rgba(6,42,36,.28);}
.hero-sub{font-size:18px;line-height:1.7;color:rgba(255,255,255,.94);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;}
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
  font-size:13px;color:rgba(255,255,255,.92);
}
.stat-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.stat-badge strong{font-family:var(--font-num);font-size:17px;color:#fff;letter-spacing:.5px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:24px;box-shadow:0 26px 60px rgba(6,42,36,.32);
  border:1px solid rgba(255,255,255,.28);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:14px;
  background:#fff;border-radius:18px;padding:14px 20px;
  box-shadow:var(--shadow-lg);color:var(--ink);
}
.hero-float i{font-size:20px;color:var(--brand);}
.hero-float .num{font-family:var(--font-num);font-size:22px;font-weight:700;line-height:1.1;color:var(--ink);}
.hero-float .txt{font-size:13px;color:var(--muted);}

/* ---------- 信任条 ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line);padding:22px 0;}
.trust-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px 14px;}
.trust-inner .label{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1px;margin-right:6px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--brand-tint);color:var(--brand-deep);
  font-size:14px;font-weight:600;border:1px solid rgba(15,143,122,.14);
}
.chip i{font-size:13px;color:var(--brand);}

/* ---------- 三步上手 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:36px 28px 30px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#BFE3D9;}
.step-num{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:16px;display:block;
}
.step-icon{
  width:52px;height:52px;border-radius:16px;background:var(--brand-tint);
  display:flex;align-items:center;justify-content:center;color:var(--brand-deep);
  font-size:20px;margin-bottom:18px;
}
.step-card h3{font-size:20px;margin-bottom:12px;}
.step-card p{font-size:15px;color:var(--muted);margin-bottom:18px;}
.step-link{font-size:14px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.step-link i{transition:transform .2s ease;}
.step-link:hover i{transform:translateX(4px);}
.step-connector{
  display:flex;align-items:center;justify-content:center;
  color:#B6CFC8;font-size:18px;padding-top:8px;
}

/* ---------- 案例证明 ---------- */
.cases{background:#fff;}
.case-grid{display:grid;grid-template-columns:1.32fr 1fr;grid-template-rows:auto auto;gap:24px;}
.case-card{
  position:relative;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#BFE3D9;}
.case-card--lead{grid-row:span 2;}
.case-media{position:relative;overflow:hidden;}
.case-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.case-card--lead .case-media{flex:1;min-height:300px;}
.case-card--lead .case-media img{aspect-ratio:auto;height:100%;}
.case-card:not(.case-card--lead) .case-media img{aspect-ratio:16/7;}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,124,107,0) 40%,rgba(11,124,107,.42) 100%);
}
.case-media .scene-tag{
  position:absolute;left:18px;top:18px;z-index:2;
  padding:6px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.94);
  font-size:13px;font-weight:700;color:var(--brand-deep);
}
.case-body{padding:26px 26px 28px;}
.case-card--lead .case-body{padding:30px;}
.case-body h3{font-size:21px;margin-bottom:12px;}
.case-card--lead .case-body h3{font-size:25px;}
.case-body p{font-size:15px;color:var(--muted);margin-bottom:18px;}
.case-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.mini-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--brand-tint);font-size:13px;color:var(--brand-deep);font-weight:600;
}
.mini-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.mini-badge b{font-family:var(--font-num);font-size:15px;}
.case-quote{
  border-left:3px solid var(--brand);padding:4px 0 4px 14px;
  font-size:14px;color:var(--muted);line-height:1.75;
}

/* ---------- 最新信息 ---------- */
.latest{background:var(--bg);}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  display:grid;grid-template-columns:170px 1fr;gap:20px;align-items:stretch;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--shadow-sm);color:var(--ink);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#BFE3D9;color:var(--ink);}
.news-cover{border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#E8F4F1,#F7EFE6);}
.news-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.news-main{display:flex;flex-direction:column;min-width:0;}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.news-cat{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(244,162,97,.16);color:var(--accent-deep);font-size:12px;font-weight:700;
}
.news-time{font-size:13px;color:var(--muted);font-family:var(--font-num);}
.news-main h3{
  font-size:18px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-main p{
  font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-more i{transform:translateX(4px);}
.news-more i{transition:transform .2s ease;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
}
.empty-state i{font-size:34px;color:#B6CFC8;margin-bottom:16px;display:block;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq{background:#fff;}
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--line);
  border-radius:var(--r-md);padding:0 24px;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.faq-item:hover{border-color:#BFE3D9;border-left-color:#BFE3D9;}
.faq-item[open]{border-left-color:var(--brand);box-shadow:var(--shadow-md);background:#fff;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--brand);flex:none;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(90deg);}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.8;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;}

/* ---------- 立即开通 ---------- */
.cta-section{padding:96px 0;background:var(--bg);}
.cta-card{
  border-radius:var(--r-lg);background:var(--grad);color:#fff;
  padding:56px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  box-shadow:0 24px 60px rgba(15,143,122,.26);position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.14);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:32px;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.94);font-size:16px;margin-bottom:26px;max-width:460px;}
.cta-points{display:grid;gap:10px;margin-bottom:30px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:rgba(255,255,255,.95);}
.cta-points i{color:var(--accent);font-size:14px;}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-md);
  padding:30px;box-shadow:0 18px 40px rgba(6,42,36,.18);
}
.cta-form h3{font-size:20px;margin-bottom:6px;}
.cta-form .form-hint{font-size:14px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;font-weight:500;}
.field input,.field select{
  width:100%;height:48px;padding:0 16px;border-radius:14px;
  border:1px solid var(--line-strong);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#9AA8A4;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(25,179,154,.18);
}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;text-align:center;}
.form-msg{margin-top:12px;font-size:14px;color:var(--brand-deep);font-weight:600;text-align:center;min-height:22px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:72px 0 48px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin-top:18px;max-width:320px;}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:20px;letter-spacing:.5px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--brand-soft);}
.footer-col .plain{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  h1{font-size:38px;}
  .hero-inner{gap:40px;}
}
@media (max-width:991px){
  .container{max-width:720px;}
  h1{font-size:34px;}
  h2{font-size:27px;}
  .section{padding:80px 0;}
  .hero-inner{grid-template-columns:1fr;min-height:auto;gap:36px;}
  .hero-sub{max-width:none;}
  .hero-visual{order:-1;}
  .steps-grid{grid-template-columns:1fr;gap:20px;}
  .step-connector{display:none;}
  .case-grid{grid-template-columns:1fr;grid-template-rows:auto;}
  .case-card--lead{grid-row:auto;}
  .case-card--lead .case-media{min-height:220px;}
  .news-grid{grid-template-columns:1fr;}
  .cta-card{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 20px;}
  .nav-inner{grid-template-columns:auto 1fr auto;height:66px;gap:10px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:flex;}
  .mobile-cta{display:inline-flex;height:38px;padding:0 16px;font-size:13px;}
  .brand{justify-self:center;}
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:15px;}
  .mobile-drawer{
    display:none;background:#fff;border-top:1px solid var(--line);
    padding:14px 20px 22px;box-shadow:0 14px 26px rgba(20,32,30,.08);
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer a{
    display:block;padding:14px 8px;font-size:17px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a:last-of-type{border-bottom:0;}
  .mobile-drawer a.active{color:var(--brand-deep);}
  .mobile-drawer .btn{margin-top:14px;width:100%;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .section-head{margin-bottom:32px;}
  .section-head p{font-size:15px;}
  .hero-inner{padding-top:40px;padding-bottom:52px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-float{left:12px;bottom:12px;padding:12px 16px;}
  .hero-float .num{font-size:18px;}
  .trust-inner{justify-content:flex-start;}
  .trust-inner .label{width:100%;margin-bottom:4px;}
  .news-card{grid-template-columns:1fr;gap:14px;}
  .news-cover img{aspect-ratio:16/9;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .cta-section{padding:56px 0;}
  .cta-card{padding:30px 22px;border-radius:22px;}
  .cta-copy h2{font-size:24px;}
  .cta-form{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  h1{font-size:28px;}
  .step-card{padding:28px 20px 24px;}
  .case-body{padding:20px;}
  .stat-badge{font-size:12px;}
  .stat-badge strong{font-size:15px;}
}

/* roulang page: article */
:root{
  --brand:#0F8F7A;
  --brand-deep:#0B7C6B;
  --brand-light:#19B39A;
  --brand-soft:rgba(15,143,122,.08);
  --brand-soft-2:rgba(15,143,122,.16);
  --accent:#F4A261;
  --accent-deep:#E5813A;
  --ink:#14201E;
  --ink-2:#2C3A37;
  --muted:#55635F;
  --muted-2:#7C8A86;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --line:#E3EAE7;
  --line-2:#D9E3DF;
  --footer:#0E211D;
  --radius-sm:14px;
  --radius:20px;
  --radius-lg:28px;
  --shadow-sm:0 2px 8px rgba(20,32,30,.06);
  --shadow:0 10px 30px rgba(15,143,122,.10), 0 2px 8px rgba(20,32,30,.06);
  --shadow-lg:0 18px 46px rgba(15,143,122,.16), 0 4px 12px rgba(20,32,30,.08);
  --grad:linear-gradient(135deg,#0B7C6B 0%,#19B39A 56%,#F4A261 120%);
  --grad-soft:linear-gradient(135deg,rgba(11,124,107,.06) 0%,rgba(25,179,154,.10) 56%,rgba(244,162,97,.12) 120%);
  --font:"-apple-system","PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow","Inter",system-ui,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-deep);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid rgba(15,143,122,.35);outline-offset:2px;border-radius:6px;}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  box-shadow:0 6px 24px rgba(20,32,30,.08);
  border-bottom-color:var(--line);
  background:rgba(255,255,255,.98);
}
.nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-left{display:flex;align-items:center;justify-content:flex-end;gap:26px;}
.nav-right{display:flex;align-items:center;justify-content:flex-start;gap:22px;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-deep);font-weight:600;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;color:var(--ink);justify-self:center;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 6px 16px rgba(15,143,122,.28);
}
.brand-text{font-size:18px;letter-spacing:.3px;white-space:nowrap;}
.nav-toggle{
  display:none;justify-self:end;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  cursor:pointer;align-items:center;justify-content:center;font-size:18px;
  transition:border-color .2s ease,color .2s ease,transform .15s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-deep);}
.nav-toggle:active{transform:scale(.97);}
.mobile-cta{display:none;}
.mobile-drawer{
  display:none;flex-direction:column;gap:4px;
  border-top:1px solid var(--line);
  background:#fff;padding:14px 24px 24px;
}
.mobile-drawer a{
  font-size:17px;color:var(--ink-2);padding:12px 4px;border-bottom:1px dashed var(--line);
}
.mobile-drawer a.active{color:var(--brand-deep);font-weight:600;}
.mobile-drawer a.btn{border-bottom:0;margin-top:14px;}
.mobile-drawer.is-open{display:flex;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px) scale(.995);}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px rgba(15,143,122,.28);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 32px rgba(15,143,122,.34);}
.btn-ghost{
  background:#fff;color:var(--brand-deep);border-color:var(--brand-soft-2);
}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ Badges / Chips ============ */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.badge-amber{background:rgba(244,162,97,.16);color:var(--accent-deep);}
.badge-amber::before{background:var(--accent);}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);}
.badge-line::before{background:var(--muted-2);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.stat{
  display:flex;flex-direction:column;gap:2px;
  padding:14px 20px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.stat-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand-deep);line-height:1.1;}
.stat-label{font-size:13px;color:var(--muted);}

/* ============ Article layout ============ */
.page-head{
  background:var(--grad-soft);
  border-bottom:1px solid var(--line);
  padding:26px 0 30px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:16px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .current{color:var(--brand-deep);font-weight:600;}
.article-head h1{
  font-size:38px;line-height:1.28;margin:14px 0 16px;color:var(--ink);
  max-width:900px;
}
.article-lead{
  max-width:820px;color:var(--muted);font-size:16px;line-height:1.9;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:18px;font-size:14px;color:var(--muted-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--brand);}

.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:40px;
  align-items:start;
  padding:44px 0 72px;
}
.reader{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px 44px;box-shadow:var(--shadow);
}
.article-body{font-size:16px;line-height:1.95;color:var(--ink-2);}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  font-size:26px;color:var(--ink);
  padding-left:14px;border-left:4px solid var(--brand);
  margin-top:2em;position:relative;border-radius:2px;
}
.article-body h3{font-size:20px;color:var(--ink);margin-top:1.6em;font-weight:700;}
.article-body h4{font-size:17px;color:var(--ink);margin-top:1.4em;}
.article-body p{margin:0;line-height:1.95;}
.article-body a{color:var(--brand-deep);border-bottom:1px solid var(--brand-soft-2);}
.article-body a:hover{color:var(--accent-deep);border-bottom-color:var(--accent);}
.article-body ul,.article-body ol{padding-left:1.4em;margin:1em 0;list-style:revert;}
.article-body li{margin:.45em 0;line-height:1.85;}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:rgba(15,143,122,.07);
  border-left:4px solid var(--brand-light);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-2);font-size:15.5px;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:16px;margin:1.4em auto;box-shadow:var(--shadow-sm);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;color:var(--muted-2);text-align:center;margin-top:10px;line-height:1.7;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:rgba(15,143,122,.07);color:var(--ink);font-weight:600;white-space:nowrap;}
.article-body code{
  background:rgba(20,32,30,.06);padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* Sidebar */
.side{display:flex;flex-direction:column;gap:22px;position:sticky;top:104px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-card h3{font-size:16px;margin-bottom:14px;color:var(--ink);display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);}
.toc-list{display:flex;flex-direction:column;gap:6px;font-size:14px;}
.toc-list a{
  display:block;color:var(--muted);padding:7px 10px;border-radius:10px;border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-deep);border-left-color:var(--brand);}
.toc-empty{font-size:14px;color:var(--muted-2);line-height:1.8;}
.mini-link{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2);
}
.mini-link:last-child{border-bottom:0;padding-bottom:0;}
.mini-link i{color:var(--brand);font-size:12px;transition:transform .2s ease;}
.mini-link:hover{color:var(--brand-deep);}
.mini-link:hover i{transform:translateX(3px);}
.cta-card{
  background:var(--grad);color:#fff;border:0;
  box-shadow:0 16px 36px rgba(15,143,122,.28);
}
.cta-card h3{color:#fff;}
.cta-card h3 i{color:#fff;}
.cta-card p{font-size:14.5px;color:rgba(255,255,255,.92);line-height:1.85;}
.cta-card .btn{
  background:#fff;color:var(--brand-deep);box-shadow:0 8px 20px rgba(0,0,0,.14);
}
.cta-card .btn:hover{background:#fff;color:var(--brand-deep);}

/* Related */
.related{margin-top:56px;}
.section-head{margin-bottom:24px;}
.section-head h2{font-size:24px;color:var(--ink);}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(15,143,122,.35);}
.post-card .thumb{
  aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#EAF3F0,#F7F1EA);
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:17px;line-height:1.5;}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand-deep);}
.post-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.post-card .foot{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted-2);
}
.nav-post{
  margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;
}
.nav-post a{
  flex:1 1 240px;display:flex;align-items:center;gap:10px;
  padding:16px 20px;border-radius:var(--radius-sm);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:15px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-post a:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.nav-post i{color:var(--brand);}

/* Empty state */
.empty{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:14px;padding:64px 24px;
  background:#fff;border:1px dashed var(--line-2);border-radius:var(--radius-lg);
}
.empty i{font-size:38px;color:var(--brand);opacity:.7;}
.empty h2{font-size:22px;}
.empty p{color:var(--muted);font-size:15px;}

/* CTA band */
.cta-band{
  background:var(--grad);border-radius:var(--radius-lg);
  padding:44px 46px;color:#fff;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  box-shadow:0 20px 50px rgba(15,143,122,.24);
  margin-bottom:72px;
}
.cta-band h2{font-size:26px;line-height:1.35;color:#fff;}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.9);font-size:15px;line-height:1.9;}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-band .btn-light{background:#fff;color:var(--brand-deep);}
.cta-band .btn-light:hover{color:var(--brand-deep);transform:translateY(-1px);}
.cta-band .btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ============ Footer ============ */
.site-footer{background:var(--footer);color:#C9D6D2;margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;padding:64px 24px 46px;
}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14.5px;line-height:1.9;color:#9FB2AD;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#9FB2AD;font-size:14.5px;}
.footer-col a:hover{color:var(--brand-light);}
.footer-col .plain{color:#9FB2AD;font-size:14.5px;line-height:1.7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:20px 24px;font-size:13.5px;color:#89A09A;
}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .layout{grid-template-columns:minmax(0,1fr) 290px;gap:30px;}
  .reader{padding:34px 32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .nav-left,.nav-right{display:none;}
  .nav-inner{grid-template-columns:auto 1fr auto;gap:12px;min-height:68px;}
  .brand{justify-self:start;}
  .nav-toggle{display:inline-flex;}
  .mobile-cta{display:inline-flex;height:40px;padding:0 16px;font-size:14px;justify-self:end;}
  .article-head h1{font-size:30px;}
  .layout{grid-template-columns:1fr;padding:32px 0 56px;}
  .side{position:static;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .cta-band{grid-template-columns:1fr;padding:34px 28px;}
  .cta-band .actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 24px 34px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .brand-text{font-size:16px;}
  .article-head h1{font-size:26px;}
  .page-head{padding:20px 0 24px;}
  .reader{padding:24px 20px;border-radius:var(--radius);}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18.5px;}
  .related-grid{grid-template-columns:1fr;}
  .nav-post a{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;}
  .mobile-cta{display:none;}
  .nav-inner{grid-template-columns:auto 1fr auto;}
}
@media (max-width:479px){
  .article-head h1{font-size:23px;}
  .stat-num{font-size:26px;}
  .reader{padding:20px 16px;}
  .btn{height:48px;padding:0 20px;}
}

/* roulang page: category1 */
:root{
  --primary:#0F8F7A;
  --primary-dark:#0B7C6B;
  --primary-light:#19B39A;
  --primary-soft:rgba(15,143,122,.08);
  --primary-softer:rgba(15,143,122,.04);
  --accent:#F4A261;
  --accent-soft:rgba(244,162,97,.14);
  --ink:#14201E;
  --muted:#55635F;
  --faint:#8A9691;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --line:#E3EAE7;
  --line-soft:#EEF3F1;
  --gradient:linear-gradient(135deg,#0B7C6B 0%,#19B39A 56%,#F4A261 120%);
  --radius-sm:14px;
  --radius:20px;
  --radius-lg:28px;
  --shadow:0 10px 30px rgba(15,143,122,.10), 0 2px 8px rgba(20,32,30,.06);
  --shadow-hover:0 18px 42px rgba(15,143,122,.18), 0 4px 12px rgba(20,32,30,.08);
  --shadow-soft:0 6px 18px rgba(20,32,30,.05);
  --container:1200px;
  --font-cn:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow","Inter",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(15,143,122,.28);outline-offset:2px;border-radius:6px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 26px;
  border-radius:999px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--gradient);
  color:#fff;
  box-shadow:0 10px 24px rgba(15,143,122,.28);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 32px rgba(15,143,122,.34);}
.btn-primary:active{transform:translateY(0) scale(.99);box-shadow:0 6px 14px rgba(15,143,122,.24);}
.btn-outline{
  background:#fff;
  color:var(--primary-dark);
  border:1.5px solid rgba(15,143,122,.45);
}
.btn-outline:hover{background:rgba(15,143,122,.08);border-color:var(--primary);}
.btn-ghost{
  background:rgba(255,255,255,.16);
  color:#fff;
  border:1.5px solid rgba(255,255,255,.5);
}
.btn-ghost:hover{background:rgba(255,255,255,.26);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:54px;padding:0 32px;font-size:17px;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 15px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:600;
  line-height:1.4;
}
.badge i{color:var(--primary);font-size:13px;}
.badge-accent{background:var(--accent-soft);color:#A25B18;}
.badge-accent i{color:var(--accent);}
.badge-line{
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-weight:500;
}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--primary);display:inline-block;}
.dot-accent{background:var(--accent);}

.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:8px;
  background:var(--primary-softer);
  border:1px solid var(--line-soft);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:500;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,30,.07);border-color:var(--line);}
.nav-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:76px;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:3px;
  border-radius:3px;
  background:var(--gradient);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary-dark);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-self:center;
}
.brand-mark{
  width:40px;height:40px;
  border-radius:13px;
  background:var(--gradient);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  box-shadow:0 8px 18px rgba(15,143,122,.28);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.4px;
  color:var(--ink);
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--primary-dark);
  font-size:18px;
  align-items:center;
  justify-content:center;
  justify-self:start;
}
.mobile-cta{display:none;}
.mobile-drawer{
  display:none;
  flex-direction:column;
  gap:4px;
  padding:10px 24px 24px;
  border-top:1px solid var(--line-soft);
  background:#fff;
}
.mobile-drawer a{
  padding:13px 6px;
  font-size:17px;
  color:var(--ink);
  border-bottom:1px solid var(--line-soft);
}
.mobile-drawer a.active{color:var(--primary-dark);font-weight:600;}
.mobile-drawer a.btn{border-bottom:none;margin-top:12px;}
.site-header.drawer-open .mobile-drawer{display:flex;}

/* ============ 分类横幅 ============ */
.cat-banner{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(9,96,84,.94) 0%,rgba(15,143,122,.86) 48%,rgba(244,162,97,.72) 120%);
}
.cat-banner .container{position:relative;z-index:2;padding-top:52px;padding-bottom:52px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.82);
  margin-bottom:22px;
}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:#fff;font-weight:700;}
.cat-banner h1{
  font-size:44px;
  line-height:1.25;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
  max-width:820px;
}
.cat-banner .lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.9);
  max-width:680px;
}
.cat-banner .badge-row{margin-top:26px;}
.cat-banner .badge{
  background:rgba(255,255,255,.16);
  color:#fff;
  border:1px solid rgba(255,255,255,.32);
}
.cat-banner .badge i{color:#FFE1C4;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  letter-spacing:1.4px;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow .dot{width:6px;height:6px;}
.section-head h2{
  font-size:31px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
}
.section-head p{
  margin-top:14px;
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
}

/* ============ 概览条 ============ */
.overview-strip{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.overview-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line-soft);
}
.overview-item{
  background:#fff;
  padding:26px 22px;
  display:flex;
  align-items:center;
  gap:14px;
}
.overview-item i{
  width:44px;height:44px;
  border-radius:14px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  flex:0 0 auto;
}
.overview-item strong{display:block;font-size:15px;font-weight:600;}
.overview-item span{font-size:13px;color:var(--faint);}

/* ============ 左目录 + 右内容 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:268px 1fr;
  gap:44px;
  align-items:start;
}
.side-nav{
  position:sticky;
  top:104px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 20px;
  box-shadow:var(--shadow-soft);
}
.side-nav h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:14px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);
}
.side-nav ul{display:flex;flex-direction:column;gap:2px;}
.side-nav a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:12px;
  font-size:15px;
  color:var(--muted);
}
.side-nav a i{font-size:12px;color:var(--primary);opacity:.7;}
.side-nav a:hover{background:var(--primary-softer);color:var(--primary-dark);}
.side-nav a.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600;}
.side-nav a.active i{opacity:1;}
.side-note{
  margin-top:20px;
  padding:18px;
  border-radius:var(--radius-sm);
  background:linear-gradient(135deg,rgba(15,143,122,.08),rgba(244,162,97,.10));
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.side-note strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px;}

.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px;
}
.info-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-soft);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(15,143,122,.35);}
.info-card figure{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(135deg,#E8F3F0,#F6EFE6);
}
.info-card figure img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.info-card:hover figure img{transform:scale(1.045);}
.info-card figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(20,32,30,0) 45%,rgba(20,32,30,.42) 100%);
}
.card-tagline{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:20px;font-weight:700;line-height:1.45;}
.card-body p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8;flex:1;}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:18px;
  padding-top:18px;
  border-top:1px dashed var(--line);
}
.metric{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
}
.metric b{font-family:var(--font-num);font-size:16px;font-weight:700;letter-spacing:.3px;}
.metric-amber{background:var(--accent-soft);color:#A25B18;}
.card-link{
  margin-left:auto;
  font-size:14px;
  font-weight:600;
  color:var(--primary-dark);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-link i{transition:transform .22s ease;}
.card-link:hover i{transform:translateX(4px);}

/* ============ 流程 ============ */
.steps-band{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.step-card{
  position:relative;
  padding:32px 26px 28px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  border-radius:20px 20px 0 0;
  background:var(--gradient);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(15,143,122,.35);background:#fff;}
.step-num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:700;
  line-height:1;
  background:var(--gradient);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.step-card h3{margin-top:14px;font-size:19px;font-weight:700;}
.step-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;}
.step-card .card-link{margin-top:16px;margin-left:0;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item[open]{border-left-color:var(--primary);box-shadow:var(--shadow-soft);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 22px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-icon{
  margin-left:auto;
  width:30px;height:30px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary-dark);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  transition:transform .26s ease,background-color .26s ease;
}
.faq-item[open] summary .faq-icon{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-item .faq-answer{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}

/* ============ CTA ============ */
.cta-band{padding:0 0 96px;}
.cta-card{
  position:relative;
  border-radius:var(--radius-lg);
  background:var(--gradient);
  overflow:hidden;
  padding:56px;
  display:grid;
  grid-template-columns:1.25fr 1fr;
  gap:48px;
  align-items:center;
  box-shadow:0 26px 60px rgba(11,124,107,.28);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-card::before{
  content:"";
  position:absolute;
  right:60px;bottom:-120px;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:32px;line-height:1.35;color:#fff;font-weight:700;}
.cta-copy p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.92);max-width:520px;}
.cta-copy .badge-row{margin-top:24px;}
.cta-copy .badge{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.32);}
.cta-copy .badge i{color:#FFE1C4;}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.cta-form{
  position:relative;
  z-index:2;
  background:#fff;
  border-radius:var(--radius);
  padding:30px 28px 32px;
  box-shadow:0 18px 40px rgba(20,32,30,.16);
}
.cta-form h3{font-size:20px;font-weight:700;}
.cta-form .hint{margin-top:8px;font-size:14px;color:var(--muted);}
.field{margin-top:18px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;font-weight:500;}
.field input,.field select{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid #D9E3DF;
  background:#fff;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
  appearance:none;
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,143,122,.16);}
.field.is-error input,.field.is-error select{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.14);}
.field-msg{margin-top:7px;font-size:13px;color:#D9534F;display:none;}
.field.is-error .field-msg{display:block;}
.field.is-ok input,.field.is-ok select{border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,143,122,.14);}
.field-ok-msg{margin-top:7px;font-size:13px;color:var(--primary-dark);display:none;}
.field.is-ok .field-ok-msg{display:block;}
.cta-form .btn{width:100%;margin-top:26px;}
.form-note{margin-top:14px;font-size:13px;color:var(--faint);line-height:1.7;text-align:center;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0F1F1C;
  color:#C7D3D0;
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:56px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand p{
  margin-top:20px;
  font-size:14px;
  line-height:1.85;
  color:#9FB0AC;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#9FB0AC;}
.footer-col a:hover{color:var(--primary-light);}
.footer-col .plain{font-size:14px;color:#9FB0AC;line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0;
}
.footer-bottom .container{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#7E8F8B;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .cat-layout{grid-template-columns:240px 1fr;gap:32px;}
  .nav-left,.nav-right{gap:20px;}
  .brand-text{font-size:18px;}
}
@media (max-width:991px){
  .nav-inner{grid-template-columns:auto 1fr auto;height:70px;gap:12px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-cta{display:inline-flex;justify-self:end;height:38px;padding:0 16px;font-size:14px;}
  .cat-banner h1{font-size:36px;}
  .cat-layout{grid-template-columns:1fr;}
  .side-nav{position:static;}
  .card-grid{grid-template-columns:1fr;}
  .overview-grid{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:1fr;gap:18px;}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:60px 0;}
  .section-tight{padding:48px 0;}
  .cat-banner{min-height:auto;}
  .cat-banner .container{padding-top:44px;padding-bottom:44px;}
  .cat-banner h1{font-size:30px;}
  .cat-banner .lead{font-size:15px;}
  .section-head h2{font-size:25px;}
  .cta-card{padding:32px 22px;border-radius:22px;}
  .cta-copy h2{font-size:25px;}
  .card-body{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding-top:56px;}
  .footer-bottom .container{flex-direction:column;}
  .brand-text{font-size:16px;}
  .brand-mark{width:36px;height:36px;font-size:15px;}
}
@media (max-width:519px){
  .nav-inner{height:66px;}
  .mobile-cta{display:none;}
  .cat-banner h1{font-size:26px;}
  .overview-grid{grid-template-columns:1fr;}
  .badge{font-size:13px;padding:6px 12px;}
  .step-card{padding:26px 20px 22px;}
  .cta-form{padding:24px 18px 26px;}
  .card-meta{gap:8px;}
  .card-link{margin-left:0;}
}

/* roulang page: category2 */
:root{
  --primary:#0F8F7A;
  --primary-dark:#0B7C6B;
  --primary-light:#19B39A;
  --primary-soft:rgba(15,143,122,.08);
  --primary-line:rgba(15,143,122,.22);
  --accent:#F4A261;
  --accent-deep:#E2843A;
  --ink:#14201E;
  --muted:#55635F;
  --muted-2:#7C8A86;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --line:#E3EAE7;
  --line-soft:#EEF3F1;
  --grad:linear-gradient(135deg,#0B7C6B 0%,#19B39A 56%,#F4A261 120%);
  --radius-sm:12px;
  --radius:20px;
  --radius-lg:28px;
  --shadow-s:0 2px 8px rgba(20,32,30,.06);
  --shadow:0 10px 30px rgba(15,143,122,.10),0 2px 8px rgba(20,32,30,.06);
  --shadow-h:0 18px 42px rgba(15,143,122,.16),0 4px 12px rgba(20,32,30,.08);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Barlow","Inter",system-ui,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink);}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;border-radius:16px;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(15,143,122,.35);outline-offset:2px;border-radius:8px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:999px;
  font-size:16px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 24px rgba(15,143,122,.28);
}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px rgba(15,143,122,.34);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  background:transparent;color:var(--primary-dark);border-color:var(--primary-line);
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.btn-ghost:active{transform:scale(.99);}
.btn-light{
  background:#fff;color:var(--primary-dark);border-color:transparent;
  box-shadow:0 10px 26px rgba(11,60,52,.18);
}
.btn-light:hover{transform:translateY(-1px);color:var(--primary-dark);box-shadow:0 16px 32px rgba(11,60,52,.24);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;font-weight:600;line-height:1.5;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
.badge-amber{background:rgba(244,162,97,.16);color:#9B5A1C;}
.badge-amber::before{background:var(--accent-deep);}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-soft{background:var(--line-soft);border-color:transparent;color:var(--muted);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(20,32,30,.08);border-bottom-color:var(--line);}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  min-height:76px;gap:16px;
}
.nav-left{display:flex;justify-content:flex-end;align-items:center;gap:6px;}
.nav-right{display:flex;justify-content:flex-start;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--muted);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;
  background:var(--grad);opacity:0;transform:scaleX(.4);transition:opacity .2s ease,transform .25s ease;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-soft);}
.nav-link.active{color:var(--primary-dark);background:var(--primary-soft);}
.nav-link.active::after{opacity:1;transform:scaleX(1);}
.nav-right .nav-link{margin-right:2px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:14px;
  background:var(--grad);color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(15,143,122,.28);
}
.brand-text{font-size:17px;letter-spacing:.01em;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle:hover{background:var(--primary-soft);color:var(--primary-dark);}
.mobile-cta{display:none;height:40px;padding:0 16px;font-size:14px;}
.mobile-drawer{
  display:none;flex-direction:column;gap:4px;
  padding:14px 24px 24px;background:#fff;border-top:1px solid var(--line-soft);
}
.mobile-drawer a{
  display:block;padding:13px 14px;border-radius:14px;
  font-size:17px;font-weight:600;color:var(--muted);
}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--primary-soft);color:var(--primary-dark);}
.mobile-drawer .btn{margin-top:10px;justify-content:center;color:#fff;}
.mobile-drawer.is-open{display:flex;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  background:
    linear-gradient(140deg,rgba(15,143,122,.14) 0%,rgba(25,179,154,.08) 42%,rgba(244,162,97,.12) 100%),
    var(--bg);
  border-bottom:1px solid var(--line-soft);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(15,143,122,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,143,122,.07) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(circle at 50% 34%,#000 0%,rgba(0,0,0,.55) 52%,transparent 88%);
  -webkit-mask-image:radial-gradient(circle at 50% 34%,#000 0%,rgba(0,0,0,.55) 52%,transparent 88%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.hero-center{max-width:880px;margin:0 auto;text-align:center;}
.crumbs{
  display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--muted-2);margin-bottom:22px;
}
.crumbs a{color:var(--muted);font-weight:600;}
.crumbs a:hover{color:var(--primary-dark);}
.crumbs .sep{color:#C6D2CE;}
.crumbs .current{color:var(--primary-dark);font-weight:700;}
.cat-hero h1{
  font-size:46px;line-height:1.22;letter-spacing:-.01em;
  margin-bottom:18px;
}
.cat-hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:18px;line-height:1.85;color:var(--muted);
  max-width:720px;margin:0 auto 30px;
}
.hero-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.badge-row{
  display:flex;justify-content:center;flex-wrap:wrap;gap:12px;
}
.stat-chip{
  display:inline-flex;align-items:center;gap:12px;
  padding:12px 20px;border-radius:999px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);
}
.stat-chip i{color:var(--primary);font-size:16px;}
.stat-chip b{
  font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--ink);
  letter-spacing:.01em;line-height:1;
}
.stat-chip span{font-size:13px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:740px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--primary-dark);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.section-head.center .eyebrow::after{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.section-head h2{font-size:31px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 时间线 / 步骤轴 ---------- */
.timeline{position:relative;display:grid;gap:0;}
.timeline::before{
  content:"";position:absolute;left:27px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,rgba(15,143,122,.45),rgba(244,162,97,.35));
  border-radius:2px;
}
.tl-item{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;
  padding:0 0 34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:relative;z-index:1;
  width:56px;height:56px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);
  font-family:var(--font-num);font-size:19px;font-weight:700;color:var(--primary-dark);
  box-shadow:var(--shadow-s);
}
.tl-item:hover .tl-dot{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 12px 26px rgba(15,143,122,.26);}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-item:hover .tl-body{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--primary-line);}
.tl-body h3{font-size:19px;margin-bottom:8px;}
.tl-body p{font-size:15px;color:var(--muted);margin:0 0 10px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 双列大卡 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.big-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-s);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.big-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:var(--primary-line);}
.card-index{
  position:absolute;top:22px;right:26px;
  font-family:var(--font-num);font-size:44px;font-weight:700;
  color:rgba(15,143,122,.10);line-height:1;letter-spacing:-.02em;
}
.big-card h3{font-size:21px;margin-bottom:10px;padding-right:56px;}
.big-card p{font-size:15px;color:var(--muted);margin-bottom:18px;}
.card-cover{
  position:relative;border-radius:var(--radius);overflow:hidden;margin-bottom:20px;
  aspect-ratio:16/10;background:var(--line-soft);
}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.big-card:hover .card-cover img{transform:scale(1.03);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,124,107,0) 45%,rgba(11,124,107,.28) 100%);
}
.card-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:16px;margin-bottom:18px;
  background:var(--primary-soft);color:var(--primary-dark);font-size:20px;
}
.big-card:hover .card-icon{background:var(--grad);color:#fff;}
.card-list{display:grid;gap:10px;margin:0 0 18px;}
.card-list li{
  position:relative;padding-left:24px;font-size:15px;color:var(--muted);line-height:1.75;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:10px;height:2px;border-radius:2px;background:var(--primary);
}
.card-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}

/* ---------- 提示条 ---------- */
.notice-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow-s);
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.notice-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;}
.notice-item i{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-dark);font-size:15px;
}
.notice-item h4{font-size:16px;margin-bottom:4px;}
.notice-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--line);
  border-radius:var(--radius-sm);overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:var(--line);border-left-color:var(--primary-line);box-shadow:var(--shadow-s);}
.faq-item[open]{border-left-color:var(--primary);box-shadow:var(--shadow-s);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 58px 20px 24px;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--primary);transition:transform .28s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(90deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-body p{margin:0;}

/* ---------- 相关分类互链 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.related-card{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;
  padding:24px 26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--primary-line);}
.related-card .rc-icon{
  width:50px;height:50px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-dark);font-size:19px;
}
.related-card h4{font-size:17px;margin-bottom:4px;color:var(--ink);}
.related-card p{font-size:14px;color:var(--muted);margin:0;}
.related-card .rc-arrow{color:var(--primary);font-size:15px;}

/* ---------- CTA 横条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--grad);
  padding:44px 46px;color:#fff;
  display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;
  box-shadow:0 24px 50px rgba(15,143,122,.24);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;font-size:29px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;margin:0;max-width:640px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:7px;font-weight:600;}
.field input,.field select{
  width:100%;height:48px;padding:0 15px;border-radius:14px;
  border:1px solid #D9E3DF;background:#fff;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#A6B3AF;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,143,122,.16);
}
.field input:disabled,.field select:disabled{background:var(--line-soft);opacity:.7;}
.field .hint{font-size:13px;color:var(--muted-2);margin-top:6px;}
.field.is-error input{border-color:#D9534F;box-shadow:0 0 0 3px rgba(217,83,79,.14);}
.field.is-error .hint{color:#C1443F;}
.field.is-ok input{border-color:var(--primary);}
.field.is-ok .hint{color:var(--primary-dark);}
.form-foot{font-size:13px;color:var(--muted-2);margin-top:14px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0E211D;color:#C7D6D2;margin-top:0;
  padding-top:72px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB2AD;margin:0;max-width:340px;}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:#A9BCB7;}
.footer-col a:hover{color:var(--primary-light);}
.footer-col .plain{font-size:14px;color:#A9BCB7;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0;
}
.footer-bottom .container{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8CA09B;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .cat-hero h1{font-size:40px;}
}
@media (max-width:991px){
  .container{max-width:720px;}
  .nav-inner{grid-template-columns:auto 1fr auto;gap:12px;}
  .nav-left{display:none;}
  .nav-right{display:none;}
  .nav-toggle{display:inline-flex;order:3;}
  .mobile-cta{display:inline-flex;order:2;justify-self:end;}
  .brand{order:1;justify-self:start;}
  .grid-2{grid-template-columns:1fr;gap:22px;}
  .notice-band{grid-template-columns:1fr;gap:20px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px 30px;text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-hero{padding:76px 0 68px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 20px;}
  .cat-hero{padding:56px 0 52px;}
  .cat-hero h1{font-size:31px;}
  .hero-sub{font-size:16px;margin-bottom:24px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .section-head h2{font-size:25px;}
  .big-card{padding:24px;border-radius:24px;}
  .card-index{font-size:36px;top:18px;right:20px;}
  .timeline::before{left:22px;}
  .tl-item{grid-template-columns:46px 1fr;gap:16px;}
  .tl-dot{width:46px;height:46px;border-radius:15px;font-size:16px;}
  .tl-body{padding:18px 18px;}
  .cta-band h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:38px;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;gap:8px;}
  .form-card{padding:22px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .cat-hero h1{font-size:28px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:36px;height:36px;border-radius:12px;font-size:15px;}
  .stat-chip{padding:10px 16px;gap:9px;}
  .stat-chip b{font-size:18px;}
  .big-card{padding:18px;}
  .faq-item summary{font-size:16px;padding:18px 52px 18px 18px;}
  .faq-body{padding:0 18px 18px;}
  .notice-band{padding:20px;}
}