/* roulang page: index */
:root{
  --primary:#0E6470;
  --primary-700:#0A4C56;
  --primary-50:#EAF4F5;
  --accent:#F4772E;
  --accent-50:rgba(244,119,46,.10);
  --ink:#101828;
  --body:#475467;
  --muted:#98A2B3;
  --line:#E4E7EC;
  --bg:#F6F8FA;
  --white:#FFFFFF;
  --success:#12A150;
  --success-50:rgba(18,161,80,.10);
  --warning:#D98A00;
  --danger:#D92D20;
  --danger-50:rgba(217,45,32,.08);
  --r-pill:999px;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:8px;
  --sh-card:0 4px 16px rgba(16,24,40,.06);
  --sh-hover:0 12px 28px rgba(14,100,112,.12);
  --sh-modal:0 24px 60px rgba(16,24,40,.20);
  --sec:88px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--primary-700);}
button,input,select,textarea{font-family:inherit;font-size:100%;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.3px;}
h1{font-size:44px;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section-tint{background:var(--white);}
.section-mint{background:var(--primary-50);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-50);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;letter-spacing:.4px;}
.section-head h2{margin-bottom:12px;}
.section-head p{margin:0;font-size:16px;color:var(--body);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;pointer-events:none;}
.nav-shell{
  pointer-events:auto;
  width:100%;max-width:1200px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:0 4px 16px rgba(16,24,40,.06);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease,transform .25s ease;
}
.site-header.is-scrolled .nav-shell{
  box-shadow:0 12px 28px rgba(16,24,40,.12);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.2px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--body);white-space:nowrap;transition:.18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-50);}
.nav-link.is-active{color:var(--primary);background:var(--primary-50);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:.2s ease;}
.mobile-panel{
  pointer-events:auto;
  position:fixed;top:84px;left:16px;right:16px;z-index:59;
  background:var(--white);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--sh-modal);padding:14px;
  display:none;
}
.mobile-panel.is-open{display:block;animation:dropIn .22s ease;}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:12px;
  font-size:16px;color:var(--body);
}
.mobile-panel a:hover,.mobile-panel a.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.mobile-panel .btn{width:100%;margin-top:10px;justify-content:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  min-height:44px;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(244,119,46,.28);}
.btn-primary:hover{background:#E0651C;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(244,119,46,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(244,119,46,.24);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-50);color:var(--primary-700);}
.btn-sm{padding:10px 20px;font-size:15px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);
}
.link-more::after{content:"→";transition:transform .18s ease;}
.link-more:hover{color:var(--primary-700);text-decoration:underline;text-underline-offset:4px;}
.link-more:hover::after{transform:translateX(2px);}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:150px 0 72px;
  background-image:linear-gradient(115deg,rgba(255,255,255,.94) 0%,rgba(234,244,245,.88) 55%,rgba(14,100,112,.18) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 16px;font-size:13px;font-weight:600;color:var(--primary);margin-bottom:20px;
  box-shadow:var(--sh-card);
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);}
.hero h1{margin-bottom:16px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:18px;line-height:1.8;color:var(--body);max-width:560px;margin-bottom:28px;font-weight:500;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:12px 28px;padding-top:24px;border-top:1px solid var(--line);
}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:15px;color:var(--body);}
.hero-points .tick{
  width:20px;height:20px;border-radius:50%;background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex:0 0 auto;
}
.hero-visual{position:relative;}
.hero-visual .shot{
  width:100%;aspect-ratio:4/3.1;object-fit:cover;border-radius:20px;
  box-shadow:0 24px 60px rgba(16,24,40,.16);
  border:5px solid rgba(255,255,255,.9);
}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-hover);padding:16px 20px;min-width:200px;
}
.hero-visual .float-card strong{display:block;font-size:26px;color:var(--accent);line-height:1.2;}
.hero-visual .float-card span{font-size:13px;color:var(--muted);}

/* ---------- pain ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-card{
  display:flex;gap:16px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.pain-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;background:var(--primary-50);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.pain-card h3{margin-bottom:6px;font-size:18px;}
.pain-card p{margin:0;font-size:15px;color:var(--body);}

/* ---------- solutions ---------- */
.sol-grid{display:grid;grid-template-columns:5fr 3.5fr 3.5fr;gap:24px;align-items:start;}
.sol-main{
  grid-row:span 1;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease;height:100%;
  display:flex;flex-direction:column;
}
.sol-main:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.sol-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.sol-main .body{padding:26px;display:flex;flex-direction:column;gap:14px;flex:1;}
.sol-tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:13px;font-weight:600;color:var(--accent);background:var(--accent-50);
  border-radius:var(--r-badge);padding:4px 10px;
}
.sol-main ul{display:flex;flex-direction:column;gap:8px;}
.sol-main ul li{position:relative;padding-left:20px;font-size:15px;color:var(--body);}
.sol-main ul li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.sol-side{display:flex;flex-direction:column;gap:24px;}
.sol-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;gap:10px;height:100%;
}
.sol-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.sol-card .idx{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1px;}
.sol-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);margin-bottom:4px;}
.sol-card h3{font-size:18px;}
.sol-card p{margin:0;font-size:14.5px;color:var(--body);}

/* ---------- stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat-item{padding:8px 32px;border-left:1px solid rgba(14,100,112,.16);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:44px;font-weight:700;color:var(--accent);line-height:1.15;letter-spacing:-1px;}
.stat-num small{font-size:18px;font-weight:600;margin-left:4px;color:var(--accent);}
.stat-item p{margin:8px 0 0;font-size:14px;color:var(--body);}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.steps::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;height:1px;background:var(--line);
}
.step{position:relative;text-align:left;}
.step-num{
  position:relative;z-index:1;width:44px;height:44px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);border:1px solid rgba(14,100,112,.16);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{margin:0;font-size:14.5px;color:var(--body);}

/* ---------- posts ---------- */
.posts-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.posts-head .section-head{margin-bottom:0;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.post-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--primary-50);}
.post-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-chip{
  align-self:flex-start;font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-50);border-radius:var(--r-badge);padding:4px 10px;
}
.post-body h3{
  font-size:18px;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body h3 a{color:var(--ink);}
.post-body h3 a:hover{color:var(--primary);}
.post-body p{
  margin:0;font-size:14px;color:var(--body);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.empty-state{
  background:var(--white);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state .ico{
  width:56px;height:56px;border-radius:50%;background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;
}
.empty-state p{margin:0;color:var(--body);font-size:15px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item.is-open{box-shadow:var(--sh-hover);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  min-height:44px;
}
.faq-q .sign{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;transition:transform .2s ease;
}
.faq-item.is-open .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a .inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--body);}

/* ---------- form / cta ---------- */
.form-section{padding:var(--sec) 0;background:var(--primary-700);color:#fff;}
.form-section h2,.form-section h3{color:#fff;}
.form-hero{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.form-hero .intro p{color:rgba(255,255,255,.82);font-size:16px;margin-bottom:18px;}
.form-hero .intro ul{display:flex;flex-direction:column;gap:10px;}
.form-hero .intro li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.86);}
.form-hero .intro li::before{
  content:"";position:absolute;left:4px;top:10px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.form-card{
  background:var(--white);border-radius:20px;padding:32px;box-shadow:var(--sh-modal);color:var(--body);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field .req{color:var(--danger);margin-left:2px;}
.input{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-input);
  background:var(--white);color:var(--ink);font-size:15px;line-height:1.5;transition:.18s ease;
}
.input::placeholder{color:var(--muted);}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(14,100,112,.14);}
textarea.input{resize:vertical;min-height:110px;}
.field.has-error .input{border-color:var(--danger);box-shadow:0 0 0 4px var(--danger-50);}
.err{display:none;font-size:13px;color:var(--danger);line-height:1.4;}
.field.has-error .err{display:block;}
.form-actions{grid-column:1/-1;display:flex;flex-direction:column;gap:12px;}
.privacy-line{font-size:14px;color:var(--muted);line-height:1.7;}
.form-success{
  display:none;align-items:flex-start;gap:12px;background:var(--success-50);
  border:1px solid rgba(18,161,80,.28);border-radius:var(--r-card);padding:16px 18px;margin-bottom:18px;
}
.form-success.is-visible{display:flex;}
.form-success .ok{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;background:var(--success);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.form-success p{margin:0;font-size:14.5px;color:#0B6B36;line-height:1.6;}
.modal-hint{
  margin-top:18px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between:flex-start;gap:14px;flex-wrap:wrap;
}
.modal-hint span{font-size:14px;color:var(--muted);}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:90;background:rgba(16,24,40,.5);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.is-open{display:flex;animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal-box{
  position:relative;background:var(--white);border-radius:24px;padding:32px;
  width:100%;max-width:460px;box-shadow:var(--sh-modal);
}
.modal-box h3{margin-bottom:8px;font-size:22px;}
.modal-box .sub{font-size:14px;color:var(--muted);margin-bottom:20px;}
.modal-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:var(--white);color:var(--body);font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.18s ease;
}
.modal-close:hover{background:var(--primary-50);color:var(--primary);}
.modal-box .field{margin-bottom:16px;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-700);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;font-weight:600;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand span{color:#fff;font-weight:700;font-size:17px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.76);}
.footer-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.7);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  h1{font-size:40px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  .nav-list,.nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-shell{padding:10px 12px 10px 16px;}
  .hero{padding:132px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual .shot{aspect-ratio:16/9;}
  .hero-visual .float-card{left:auto;right:18px;bottom:-18px;padding:12px 16px;min-width:0;}
  .sol-grid{grid-template-columns:1fr 1fr;}
  .sol-main{grid-column:1/-1;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .stats-grid .stat-item{border-left:1px solid rgba(14,100,112,.16);}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .steps::before{display:none;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .form-hero{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  h2{font-size:26px;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  h1{font-size:30px;letter-spacing:-.2px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .container{padding:0 20px;}
  .hero{padding:120px 0 48px;}
  .hero-lead{font-size:16px;}
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .hero-points{gap:12px 20px;}
  .pain-grid{grid-template-columns:1fr;}
  .sol-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-num{font-size:34px;}
  .stat-item{padding:0 16px 0 0;border-left:0 !important;}
  .stat-item:nth-child(even){padding-left:16px;}
  .steps{grid-template-columns:1fr;}
  .posts-head{flex-direction:column;align-items:flex-start;}
  .post-grid{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  body{font-size:15px;}
  h1{font-size:27px;}
  .brand-text{font-size:16px;}
  .btn{padding:13px 22px;font-size:15px;}
  .stat-num{font-size:30px;}
  .hero-visual .float-card{position:static;margin-top:16px;width:100%;}
}

/* roulang page: article */
:root{
  --primary:#0E6470;
  --primary-700:#0A4C56;
  --primary-50:#EAF4F5;
  --accent:#F4772E;
  --accent-soft:rgba(244,119,46,.10);
  --text:#101828;
  --body:#475467;
  --muted:#98A2B3;
  --line:#E4E7EC;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --success:#12A150;
  --warning:#D98A00;
  --danger:#D92D20;
  --radius-card:16px;
  --radius-img:12px;
  --radius-field:10px;
  --radius-badge:8px;
  --radius-pill:999px;
  --shadow-1:0 4px 16px rgba(16,24,40,.06);
  --shadow-2:0 12px 28px rgba(14,100,112,.12);
  --shadow-3:0 24px 60px rgba(16,24,40,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-700);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-.3px;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px;background:linear-gradient(180deg,rgba(246,248,250,.96),rgba(246,248,250,.72) 70%,rgba(246,248,250,0));}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-1);
  padding:10px 14px 10px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  backdrop-filter:blur(10px);
}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);white-space:nowrap;}
.brand:hover{color:var(--primary);}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;flex:0 0 auto;}
.nav-main{flex:1 1 auto;display:flex;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:6px;list-style:none;}
.nav-link{display:inline-block;padding:10px 16px;border-radius:var(--radius-pill);font-size:15px;color:var(--body);white-space:nowrap;transition:background .2s ease,color .2s ease;}
.nav-link:hover{background:var(--primary-50);color:var(--primary);}
.nav-link.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:14px;cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;text-align:center;line-height:1.2;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(244,119,46,.24);}
.btn-primary:hover{background:#e2661c;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(244,119,46,.30);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(244,119,46,.22);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary-700);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- badges & tags ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);background:var(--primary-50);color:var(--primary);font-size:13px;font-weight:600;line-height:1.4;}
.badge-accent{background:var(--accent-soft);color:#C4551A;}

/* ---------- hero (article head) ---------- */
.article-hero{position:relative;overflow:hidden;border-radius:24px;margin-top:12px;background:var(--primary-700);}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.38;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.94) 0%,rgba(234,244,245,.88) 45%,rgba(14,100,112,.20) 100%);
}
.hero-inner{position:relative;z-index:2;padding:52px 48px 48px;max-width:960px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--body);margin-bottom:18px;}
.crumb a{color:var(--body);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--muted);}
.crumb .current{color:var(--muted);}
.article-hero h1{font-size:44px;line-height:1.25;letter-spacing:-.5px;margin-bottom:16px;word-break:break-word;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--body);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--muted);display:inline-block;}
.hero-note{margin-top:20px;font-size:15px;color:var(--body);max-width:720px;}

/* ---------- layout ---------- */
main{padding-bottom:8px;}
section{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--body);margin:0;}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:44px 48px 36px;}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.85;color:var(--body);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{font-size:26px;line-height:1.4;margin:36px 0 14px;}
.article-body h3{font-size:19px;line-height:1.5;margin:24px 0 10px;font-weight:600;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px;}
.article-body li{margin-bottom:8px;line-height:1.8;}
.article-body blockquote{margin:0 0 20px;padding:16px 18px;background:var(--primary-50);border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--body);}
.article-body img{border-radius:var(--radius-img);margin:20px auto;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 20px;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:var(--primary-50);color:var(--primary);font-weight:600;}
.article-body code{background:var(--primary-50);color:var(--primary-700);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:28px 0;}

.empty-state{max-width:640px;margin:0 auto;text-align:center;padding:64px 20px;}
.empty-icon{width:64px;height:64px;border-radius:20px;background:var(--primary-50);color:var(--primary);display:grid;place-items:center;margin:0 auto 18px;font-size:26px;font-weight:700;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{margin-bottom:22px;color:var(--body);}

/* ---------- tip cards ---------- */
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.tip-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.tip-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.tip-icon{width:44px;height:44px;border-radius:14px;background:var(--primary-50);color:var(--primary);display:grid;place-items:center;font-size:18px;font-weight:700;margin-bottom:14px;}
.tip-card h3{font-size:18px;margin-bottom:8px;}
.tip-card p{font-size:15px;margin:0;color:var(--body);}

/* ---------- related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.rel-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.rel-body h3{font-size:17px;line-height:1.5;}
.rel-body p{font-size:14px;color:var(--body);margin:0;}
.rel-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}

/* ---------- cta ---------- */
.cta-band{background:var(--primary-700);border-radius:24px;padding:48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.png");background-size:cover;background-position:center;opacity:.20;}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-copy h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.86);font-size:15px;margin:0 0 14px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.privacy-note{font-size:14px;color:var(--muted);margin:16px 0 0;}
.cta-band .privacy-note{color:rgba(255,255,255,.72);margin:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--primary-700);color:rgba(255,255,255,.86);margin-top:24px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);margin:0;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:14px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-links a{color:rgba(255,255,255,.82);}
.footer-links a:hover{color:var(--accent);text-decoration:underline;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:40px;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.66);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .nav-main{position:absolute;left:0;right:0;top:calc(100% + 10px);display:none;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-2);padding:12px;}
  .nav-shell{position:relative;flex-wrap:wrap;}
  .nav-shell.is-open .nav-main{display:block;}
  .nav-shell.is-open .nav-cta{display:flex;width:100%;}
  .nav-shell .nav-cta .btn{width:100%;}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{display:block;padding:13px 16px;font-size:16px;min-height:48px;line-height:22px;}
  .nav-cta{display:none;}
  .article-hero h1{font-size:32px;}
  .hero-inner{padding:40px 32px 36px;}
  .article-card{padding:36px 32px 28px;}
  .tip-grid,.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  section{padding:48px 0;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 20px;}
  .site-header{padding:12px 0 6px;}
  .nav-shell{padding:8px 10px 8px 12px;}
  .brand{font-size:16px;}
  .article-hero{border-radius:18px;}
  .article-hero h1{font-size:26px;line-height:1.35;}
  .hero-inner{padding:32px 22px 28px;}
  .section-head h2,.cta-copy h2{font-size:23px;}
  .article-card{padding:26px 20px 20px;border-radius:14px;}
  .article-body h2{font-size:21px;margin-top:28px;}
  .article-body h3{font-size:18px;}
  .tip-grid,.rel-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
}
@media (max-width:520px){
  .article-hero h1{font-size:23px;}
  .meta-row{font-size:13px;gap:10px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --primary:#0E6470;
  --primary-700:#0A4C56;
  --primary-50:#EAF4F5;
  --accent:#F4772E;
  --accent-soft:rgba(244,119,46,.10);
  --title:#101828;
  --text:#475467;
  --muted:#98A2B3;
  --line:#E4E7EC;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --success:#12A150;
  --warning:#D98A00;
  --error:#D92D20;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-card:0 4px 16px rgba(16,24,40,.06);
  --shadow-hover:0 12px 28px rgba(14,100,112,.12);
  --shadow-modal:0 24px 60px rgba(16,24,40,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-700);}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;}
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(--title);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 0 0;
}
.nav-shell{
  max-width:var(--container);
  margin:0 auto;
  padding:10px 12px 10px 18px;
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:0 8px 24px rgba(16,24,40,.06);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--title);
  white-space:nowrap;
}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#fff;
  border-radius:10px;
  font-size:17px;font-weight:700;
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.2px;}
.nav-main{margin-left:auto;flex:1 1 auto;display:flex;justify-content:flex-end;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;
  height:40px;padding:0 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text);
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--primary-50);color:var(--primary);}
.nav-link.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.nav-cta{
  flex:0 0 auto;
  height:40px;
  padding:0 20px;
  display:inline-flex;align-items:center;
  font-size:15px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-pill);
  padding:0;
  align-items:center;justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-nav{
  display:none;
  max-width:var(--container);
  margin:10px auto 0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  padding:10px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 16px;
  border-radius:12px;
  color:var(--text);
  font-size:15px;
}
.mobile-nav a.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.mobile-nav .mobile-cta{
  margin-top:8px;
  justify-content:center;
  background:var(--accent);
  color:#fff;
  font-weight:600;
}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(244,119,46,.24);}
.btn-primary:hover{background:#e0651c;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(244,119,46,.30);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(244,119,46,.22);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:600;font-size:15px;
}
.text-link i{font-size:12px;transition:transform .2s ease;}
.text-link:hover{text-decoration:underline;}
.text-link:hover i{transform:translateX(2px);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:var(--primary-50);
  color:var(--primary);
  font-size:13px;line-height:1.4;font-weight:600;
}
.badge-accent{background:var(--accent-soft);color:#C8551A;}
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--primary);
  background:var(--primary-50);
  padding:6px 14px;border-radius:var(--radius-pill);
  margin-bottom:16px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:28px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:14px;
  color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--muted);}

/* ============ Hero ============ */
.hero{
  position:relative;
  margin-top:24px;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(115deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.80) 46%,rgba(14,100,112,.20) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  padding:56px 48px;
}
.hero h1{
  font-size:44px;
  line-height:1.25;
  letter-spacing:-.5px;
}
.hero h1 .hl{color:var(--primary);}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  color:var(--text);
  max-width:560px;
}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:300px;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-visual .float-tag{
  position:absolute;
  left:-14px;bottom:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow-card);
  padding:10px 16px;
  font-size:13px;
  color:var(--primary);
  font-weight:600;
  display:flex;align-items:center;gap:8px;
}
.hero-points{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.86);
}
.hero-points div{
  display:flex;align-items:center;gap:10px;
  padding:18px 24px;
  font-size:15px;
  color:var(--title);
  font-weight:500;
}
.hero-points div + div{border-left:1px solid var(--line);}
.hero-points i{color:var(--primary);}

/* ============ 定义说明（左文右图） ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split h2{font-size:30px;line-height:1.35;}
.split p{margin-top:16px;}
.split img{
  width:100%;height:340px;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;
  color:var(--text);
}
.check-list i{color:var(--success);margin-top:6px;}

/* ============ 横向宽卡（图文交错） ============ */
.wide-card{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease;
}
.wide-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.wide-card + .wide-card{margin-top:24px;}
.wide-card.reverse{grid-template-columns:7fr 5fr;}
.wide-card .wide-media{position:relative;min-height:260px;}
.wide-card .wide-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.wide-card .wide-body{padding:34px 36px;}
.wide-card .wide-body h3{font-size:20px;margin-bottom:10px;}
.wide-card .wide-body p{font-size:15px;}
.wide-card .wide-body .mini-list{margin:16px 0 20px;display:grid;gap:8px;}
.wide-card .wide-body .mini-list li{
  font-size:14px;color:var(--text);
  display:flex;gap:10px;align-items:flex-start;
}
.wide-card .wide-body .mini-list i{color:var(--primary);margin-top:5px;font-size:12px;}
.wide-card.reverse .wide-media{order:2;}
.wide-card.reverse .wide-body{order:1;}

/* ============ 场景 / 要点卡 ============ */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card h3{font-size:20px;margin-bottom:10px;}
.feature-card p{font-size:15px;}
.icon-box{
  width:46px;height:46px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--primary-50);
  color:var(--primary);
  font-size:18px;
  margin-bottom:16px;
}
.icon-box.accent{background:var(--accent-soft);color:#C8551A;}

/* ============ 流程步骤 ============ */
.steps{position:relative;margin-top:8px;}
.steps::before{
  content:"";
  position:absolute;
  left:23px;top:12px;bottom:12px;
  width:1px;background:var(--line);
}
.step{
  position:relative;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:22px;
  padding-bottom:28px;
}
.step:last-child{padding-bottom:0;}
.step-num{
  width:48px;height:48px;
  border-radius:50%;
  background:var(--primary-50);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;
  border:1px solid var(--line);
  z-index:1;
}
.step-body{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px 26px;
}
.step-body h3{font-size:18px;margin-bottom:8px;}
.step-body p{font-size:15px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.faq-question{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:none;border:none;
  font-size:16px;font-weight:600;color:var(--title);
  text-align:left;
}
.faq-question i{color:var(--primary);font-size:14px;transition:transform .2s ease;}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease;
}
.faq-answer p{
  padding:0 24px 22px;
  font-size:15px;line-height:1.8;color:var(--text);
}
.faq-item.is-open .faq-answer{max-height:340px;}
.faq-item.is-open .faq-question i{transform:rotate(45deg);}

/* ============ CTA 引导区 ============ */
.cta-band{
  background:var(--primary-700);
  border-radius:24px;
  padding:56px 48px;
  color:#fff;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:36px;
  align-items:center;
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.35;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.82);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-note{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ============ 表单精简 ============ */
.mini-form{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:28px;
  max-width:520px;
}
.mini-form h3{font-size:19px;margin-bottom:6px;}
.mini-form .form-tip{font-size:14px;color:var(--muted);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:14px;font-weight:600;color:var(--title);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(14,100,112,.12);
}
.field textarea{min-height:92px;resize:vertical;}
.privacy-note{
  margin-top:14px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--primary-700);
  color:rgba(255,255,255,.78);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(255,255,255,.78);font-size:14px;}
.footer-links a:hover{color:var(--accent);text-decoration:underline;}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:38px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-main,.nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-shell{border-radius:28px;padding:10px 12px;}
  .hero-inner{grid-template-columns:1fr;padding:40px 32px;gap:28px;}
  .hero h1{font-size:32px;}
  .hero-visual img{height:240px;}
  .hero-points{grid-template-columns:1fr;}
  .hero-points div + div{border-left:none;border-top:1px solid var(--line);}
  .split{grid-template-columns:1fr;gap:28px;}
  .split img{height:280px;}
  .wide-card,
  .wide-card.reverse{grid-template-columns:1fr;}
  .wide-card .wide-media,
  .wide-card.reverse .wide-media{order:1;height:230px;min-height:0;}
  .wide-card .wide-body,
  .wide-card.reverse .wide-body{order:2;padding:26px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .section-head h2,.split h2{font-size:23px;}
  .hero{border-radius:18px;}
  .hero-inner{padding:32px 22px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .hero-visual img{height:220px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .card{padding:22px;}
  .cta-band{padding:32px 22px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:479px){
  .container{padding:0 20px;}
  .brand-name{font-size:16px;}
  .hero h1{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .btn{padding:14px 22px;}
  .hero-points div{padding:14px 18px;font-size:14px;}
}

/* roulang page: category2 */
:root{
  --primary:#0E6470;
  --primary-700:#0A4C56;
  --primary-50:#EAF4F5;
  --accent:#F4772E;
  --accent-700:#D9601C;
  --ink:#101828;
  --body:#475467;
  --muted:#98A2B3;
  --line:#E4E7EC;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --ok:#12A150;
  --warn:#D98A00;
  --err:#D92D20;
  --radius-pill:999px;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --radius-badge:8px;
  --shadow-card:0 4px 16px rgba(16,24,40,.06);
  --shadow-hover:0 12px 28px rgba(14,100,112,.12);
  --shadow-pop:0 24px 60px rgba(16,24,40,.20);
  --font:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --sect:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--primary-700)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
h1{font-size:44px;line-height:1.25;letter-spacing:-.5px}
h2{font-size:30px;line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:16px;line-height:1.6}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sect) 0}
.section--tight{padding:56px 0}
.section--plain{background:var(--card)}
.section--tint{background:var(--primary-50)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-50);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;letter-spacing:.2px;
}
.section-head p{margin-top:12px;font-size:16px;color:var(--body)}
.muted{color:var(--muted)}
.small{font-size:14px;line-height:1.7}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:16px;z-index:80;margin-top:16px}
.nav-shell{
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:0 12px 28px rgba(16,24,40,.08);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled .nav-shell{box-shadow:0 16px 36px rgba(16,24,40,.14)}
.nav-inner{display:flex;align-items:center;gap:20px;padding:10px 12px 10px 18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700;font-size:18px;white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:700;
  box-shadow:0 6px 14px rgba(14,100,112,.28);
}
.nav-main{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;
  height:40px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--body);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{color:var(--primary);background:#F2F6F7}
.nav-link.is-active{background:var(--primary-50);color:var(--primary);font-weight:600}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 18px rgba(244,119,46,.28);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px rgba(244,119,46,.32)}
.nav-cta:active{transform:translateY(0);box-shadow:0 6px 14px rgba(244,119,46,.24)}
.nav-toggle{
  display:none;margin-left:auto;
  width:46px;height:46px;border:1px solid var(--line);background:#fff;
  border-radius:var(--radius-pill);cursor:pointer;
  align-items:center;justify-content:center;gap:4px;flex-direction:column;
  transition:background .18s ease;
}
.nav-toggle:hover{background:var(--primary-50)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-drawer{display:none}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-top:28px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#D0D5DD}
.breadcrumb .current{color:var(--body)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 72px}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.72),rgba(14,100,112,.18));
  z-index:0;
}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 16px;font-size:13px;font-weight:600;color:var(--primary);
  box-shadow:var(--shadow-card);margin-bottom:20px;
}
.hero h1{margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:17px;line-height:1.9;color:var(--body);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-figure{
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-pop);border:1px solid rgba(255,255,255,.7);
}
.hero-figure img{width:100%;height:340px;object-fit:cover;border-radius:0}
.hero-points{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:44px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-card);
}
.hero-point{display:flex;align-items:flex-start;gap:12px}
.hero-point .dot{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:15px;font-weight:700;
}
.hero-point strong{display:block;color:var(--ink);font-size:15px}
.hero-point span{font-size:14px;color:var(--body)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(244,119,46,.26)}
.btn-primary:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px rgba(244,119,46,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(244,119,46,.22)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary-700);border-color:var(--primary-700)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}
.link-more svg{transition:transform .18s ease}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 步骤时间轴 ---------- */
.steps{position:relative;margin-top:8px}
.steps::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:1px;background:var(--line)}
.step{position:relative;padding:0 0 26px 68px}
.step:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:0;width:46px;height:46px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
  border:1px solid #D3E6E8;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
  z-index:1;
}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-card h3{margin-bottom:10px}
.step-card p{font-size:15px;line-height:1.85}
.step-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:1.4;padding:5px 12px;
  border-radius:var(--radius-badge);background:var(--primary-50);color:var(--primary);font-weight:600;
}
.tag--accent{background:rgba(244,119,46,.1);color:var(--accent-700)}

/* ---------- 对照表 ---------- */
.table-wrap{
  overflow-x:auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px}
thead th{
  background:var(--primary-50);color:var(--primary);
  text-align:left;font-weight:700;font-size:14px;
  padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:16px 22px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.75}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:#FAFCFC}
td.cell-ok{color:var(--ink);font-weight:600}
td.cell-warn{color:var(--body)}

/* ---------- 风险信号卡 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.signal{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.signal:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.signal-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;font-size:20px;
  background:rgba(217,138,0,.1);color:var(--warn);
}
.signal h3{font-size:17px;margin-bottom:6px}
.signal p{font-size:14.5px;line-height:1.8}

/* ---------- 结果说明 ---------- */
.result-layout{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.result-figure{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--line)}
.result-figure img{width:100%;height:320px;object-fit:cover;border-radius:0}
.result-list{display:grid;gap:16px}
.result-item{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.result-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.result-item .marker{
  flex:0 0 auto;width:10px;height:10px;border-radius:50%;margin-top:10px;
}
.marker--ok{background:var(--ok)}
.marker--warn{background:var(--warn)}
.marker--err{background:var(--err)}
.result-item h3{font-size:17px;margin-bottom:6px}
.result-item p{font-size:14.5px;line-height:1.8}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-card);
  padding:48px;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
}
.cta-panel h2{margin-bottom:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.cta-side{
  background:var(--primary-50);border-radius:var(--radius-card);
  padding:26px;border:1px solid #DCEAEC;
}
.cta-side h3{font-size:17px;margin-bottom:10px;color:var(--primary-700)}
.cta-side ul{display:grid;gap:10px}
.cta-side li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--body)}
.cta-side li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:10px}
.privacy-note{margin-top:18px;font-size:14px;line-height:1.7;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-700);color:rgba(255,255,255,.78);margin-top:24px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.76);max-width:340px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.78);font-size:14.5px}
.footer-links a:hover{color:var(--accent);text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.66);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sect:64px}
  .container{padding:0 24px}
  .nav-list,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{
    display:block;max-height:0;overflow:hidden;
    transition:max-height .28s ease;
    background:rgba(255,255,255,.96);
    border-top:1px solid transparent;
  }
  .nav-drawer.is-open{max-height:520px;border-top-color:var(--line)}
  .nav-drawer ul{padding:8px 12px 16px}
  .nav-drawer li{border-bottom:1px solid var(--line)}
  .nav-drawer li:last-child{border-bottom:0}
  .nav-drawer a{
    display:flex;align-items:center;min-height:48px;
    padding:0 12px;font-size:16px;color:var(--body);
  }
  .nav-drawer a.is-active{color:var(--primary);font-weight:600}
  .nav-drawer .drawer-cta{margin:0 12px 16px}
  .nav-drawer .drawer-cta a{
    background:var(--accent);color:#fff;justify-content:center;border-radius:var(--radius-pill);font-weight:600;
  }
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure img{height:280px}
  .hero-points{grid-template-columns:1fr;gap:16px}
  .grid-2,.grid-3{grid-template-columns:repeat(2,1fr)}
  .result-layout{grid-template-columns:1fr;gap:28px}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--sect:56px}
  .container{padding:0 20px}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:18px}
  .site-header{top:10px;margin-top:10px}
  .nav-inner{padding:8px 10px 8px 14px}
  .brand{font-size:16px}
  .grid-2,.grid-3{grid-template-columns:1fr;gap:16px}
  .hero{padding:32px 0 48px}
  .hero-figure img{height:220px}
  .hero-actions .btn{width:100%}
  .step{padding-left:0;padding-bottom:20px}
  .steps::before{display:none}
  .step-num{position:static;margin-bottom:12px}
  .step-card{padding:20px}
  .signal{padding:20px}
  .result-figure img{height:200px}
  .table-wrap{background:transparent;border:0;box-shadow:none}
  table{min-width:0;display:block}
  thead{display:none}
  tbody,tr,td{display:block;width:100%}
  tbody tr{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:16px 18px;margin-bottom:14px;box-shadow:var(--shadow-card);
  }
  tbody tr:hover{background:var(--card)}
  tbody td{border-bottom:0;padding:6px 0}
  tbody td::before{
    content:attr(data-label);display:block;
    font-size:13px;font-weight:700;color:var(--primary);margin-bottom:4px;
  }
  .cta-panel{padding:24px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:479px){
  body{font-size:15px}
  h1{font-size:26px}
  .hero-lead{font-size:15.5px}
  .btn{padding:13px 22px;font-size:15px}
}

/* roulang page: category3 */
:root{
  --primary:#0E6470;
  --primary-700:#0A4C56;
  --primary-50:#EAF4F5;
  --accent:#F4772E;
  --accent-50:#FEF1E8;
  --title:#101828;
  --text:#475467;
  --muted:#98A2B3;
  --line:#E4E7EC;
  --bg:#F6F8FA;
  --white:#FFFFFF;
  --success:#12A150;
  --warning:#D98A00;
  --error:#D92D20;
  --radius-sm:8px;
  --radius-md:10px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-1:0 4px 16px rgba(16,24,40,.06);
  --shadow-2:0 12px 28px rgba(14,100,112,.12);
  --shadow-3:0 24px 60px rgba(16,24,40,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-700);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:-.2px;}
h1{font-size:44px;line-height:1.25;letter-spacing:-.5px;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:16px;line-height:1.5;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--plain{background:var(--white);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.4;font-weight:600;color:var(--primary);
  background:var(--primary-50);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- Header ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:120;}
.header-inner{
  max-width:var(--container);
  width:calc(100% - 64px);
  margin:0 auto;
  padding:10px 14px 10px 20px;
  display:flex;align-items:center;gap:24px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled .header-inner{box-shadow:0 10px 30px rgba(16,24,40,.12);background:rgba(255,255,255,.97);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;flex-shrink:0;
}
.brand-text{font-size:18px;font-weight:700;color:var(--title);white-space:nowrap;}
.nav-main{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-flex;align-items:center;
  height:40px;padding:0 16px;
  font-size:15px;color:var(--text);
  border-radius:var(--radius-pill);
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-50);}
.nav-link.is-active{color:var(--primary);background:var(--primary-50);font-weight:600;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;margin-left:8px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  border-radius:var(--radius-pill);white-space:nowrap;
  box-shadow:0 6px 16px rgba(244,119,46,.28);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-cta:hover{background:#e2661d;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(244,119,46,.34);}
.nav-cta:active{transform:translateY(0);box-shadow:0 4px 12px rgba(244,119,46,.24);}
.nav-toggle{
  display:none;width:44px;height:44px;flex-shrink:0;
  background:var(--primary-50);border:1px solid var(--line);
  border-radius:14px;align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-nav{
  display:none;max-width:var(--container);width:calc(100% - 64px);
  margin:12px auto 0;padding:12px;
  background:rgba(255,255,255,.98);
  border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-3);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;height:48px;padding:0 16px;
  font-size:16px;color:var(--text);border-radius:14px;
}
.mobile-nav a:hover{background:var(--primary-50);color:var(--primary);}
.mobile-nav a.is-active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.mobile-nav .mobile-cta{
  margin-top:8px;justify-content:center;background:var(--accent);color:#fff;font-weight:600;
}
.mobile-nav .mobile-cta:hover{background:#e2661d;color:#fff;}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  padding:140px 0 72px;
  background-image:linear-gradient(115deg,rgba(255,255,255,.94) 0%,rgba(234,244,245,.88) 52%,rgba(14,100,112,.24) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero h1{max-width:900px;}
.page-hero .lede{
  margin-top:20px;max-width:720px;font-size:17px;line-height:1.9;color:var(--text);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:1.4;font-weight:600;
  color:var(--primary);background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 14px;
}
.chip--accent{color:var(--accent);background:var(--accent-50);border-color:rgba(244,119,46,.2);}
.breadcrumb{
  margin-top:28px;font-size:14px;color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumb a{color:var(--text);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .sep{color:var(--muted);}
.breadcrumb .current{color:var(--muted);}

/* ---------- Compare cards ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  border-radius:var(--radius-lg);
  padding:36px 32px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.compare-card--a{background:var(--primary-50);border-color:rgba(14,100,112,.14);}
.compare-card--b{background:var(--accent-50);border-color:rgba(244,119,46,.18);}
.compare-card h3{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.compare-card .card-note{font-size:14px;color:var(--text);margin-bottom:20px;}
.mark{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#fff;
}
.compare-card--a .mark{background:var(--primary);}
.compare-card--b .mark{background:var(--accent);}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-top:1px solid rgba(16,24,40,.06);
  font-size:15px;line-height:1.75;
}
.compare-list li:first-child{border-top:none;padding-top:4px;}
.compare-list .dot{
  width:8px;height:8px;border-radius:50%;margin-top:9px;flex-shrink:0;
}
.compare-card--a .dot{background:var(--primary);}
.compare-card--b .dot{background:var(--accent);}
.compare-list strong{color:var(--title);font-weight:600;}

/* ---------- Tag bar ---------- */
.tag-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;margin-bottom:32px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-pill);box-shadow:var(--shadow-1);
}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 18px;
  font-size:14px;font-weight:600;color:var(--text);
  background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-pill);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(14,100,112,.3);transform:translateY(-1px);}
.tag.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}
.tag .count{
  font-size:12px;font-weight:600;padding:1px 8px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.24);color:inherit;
}
.tag:not(.is-active) .count{background:var(--primary-50);color:var(--primary);}

/* ---------- Checklist ---------- */
.checklist-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(14,100,112,.22);}
.check-icon{
  width:44px;height:44px;border-radius:14px;flex-shrink:0;
  background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;
}
.check-item h3{margin-bottom:6px;}
.check-item p{font-size:14px;line-height:1.7;color:var(--text);}
.check-item .link-mini{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:10px;font-size:14px;font-weight:600;
}
.check-item .link-mini::after{content:"→";transition:transform .2s ease;}
.check-item .link-mini:hover::after{transform:translateX(3px);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item.is-open{border-color:rgba(14,100,112,.28);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;background:none;border:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--title);line-height:1.6;
}
.faq-icon{
  width:30px;height:30px;flex-shrink:0;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:600;transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a-inner{padding:0 26px 24px;font-size:15px;line-height:1.8;color:var(--text);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--white);
  border-top:1px solid var(--line);
  padding:72px 0;
}
.cta-box{
  background:linear-gradient(120deg,var(--primary-50) 0%,#FFFFFF 68%);
  border:1px solid rgba(14,100,112,.16);
  border-radius:24px;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-1);
}
.cta-box h2{font-size:26px;}
.cta-box p{margin-top:10px;font-size:15px;color:var(--text);max-width:560px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;
  font-size:15px;font-weight:600;
  border-radius:var(--radius-pill);border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(244,119,46,.28);}
.btn-primary:hover{background:#e2661d;color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(244,119,46,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(244,119,46,.24);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary-700);}
.privacy-note{font-size:14px;line-height:1.7;color:var(--muted);max-width:420px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-700);color:rgba(255,255,255,.82);padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:18px;font-weight:700;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.82);font-size:14px;}
.footer-links a:hover{color:var(--accent);text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 24px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .header-inner{width:calc(100% - 40px);}
  .mobile-nav{width:calc(100% - 40px);}
}
@media (max-width:1023px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .page-hero{padding:128px 0 56px;}
  .nav-main,.nav-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .compare-grid,.checklist-grid{grid-template-columns:1fr;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  h1{font-size:30px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .container{padding:0 20px;}
  .header-inner{width:calc(100% - 32px);padding:8px 10px 8px 14px;gap:12px;}
  .mobile-nav{width:calc(100% - 32px);}
  .brand-text{font-size:16px;}
  .page-hero{padding:118px 0 48px;}
  .page-hero .lede{font-size:16px;}
  .compare-card{padding:28px 22px;}
  .check-item{padding:22px 20px;}
  .faq-q{padding:18px 20px;font-size:15px;}
  .faq-a-inner{padding:0 20px 20px;}
  .cta-box{padding:32px 22px;border-radius:20px;}
  .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  h1{font-size:26px;}
  h2{font-size:21px;}
  .tag{flex:1 1 auto;justify-content:center;}
  .footer-bottom{flex-direction:column;gap:6px;}
}