/* roulang page: index */
:root{
  --primary:#2F6BDF;
  --primary-dark:#1E4FAF;
  --primary-light:#EAF2FF;
  --teal:#17A89A;
  --orange:#F28C28;
  --orange-light:#FFF4E8;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --ink:#0E1B2C;
  --ink-2:#5A6B80;
  --border:#E3EAF3;
  --success:#1E9E6A;
  --error:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 10px 30px rgba(16,42,84,.08);
  --shadow-hover:0 16px 40px rgba(16,42,84,.12);
  --shadow-nav:0 8px 24px rgba(16,42,84,.06);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section--alt{background:#FFFFFF;}
.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:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-light);
  border:1px solid #D7E5FF;border-radius:999px;
  padding:5px 14px;margin-bottom:16px;
}
.eyebrow--teal{color:var(--teal);background:#E8F7F5;border-color:#C9EDE8;}
.eyebrow--orange{color:#B9670F;background:var(--orange-light);border-color:#FBDDBC;}
h1{font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(26px,4vw,40px);line-height:1.2;font-weight:800;letter-spacing:-.01em;}
h3{font-size:21px;line-height:1.35;font-weight:700;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px;}
.muted{color:var(--ink-2);}
.text-orange{color:#C86D12;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,107,223,.24);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,79,175,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(30,79,175,.24);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C7DAFB;}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--primary);padding:14px 8px;}
.btn-ghost:hover{color:var(--primary-dark);}
.btn-ghost i{transition:transform .18s ease;}
.btn-ghost:hover i{transform:translateX(3px);}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(242,140,40,.26);}
.btn-orange:hover{background:#DB7A16;color:#fff;transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14.5px;}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--primary-light);color:var(--primary-dark);
  border:1px solid #D7E5FF;
}
.badge--teal{background:#E8F7F5;color:#0E7C71;border-color:#C9EDE8;}
.badge--orange{background:var(--orange-light);color:#B9670F;border-color:#FBDDBC;}
.badge--soft{background:#F1F5FB;color:var(--ink-2);border-color:var(--border);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:74px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
  justify-self:center;
}
.brand:hover{color:var(--primary-dark);}
.brand__mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#3E8BE8);
  color:#fff;font-size:14px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(47,107,223,.28);
}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-left{justify-self:end;margin-right:22px;}
.nav-right{justify-self:start;margin-left:22px;}
.nav-link{
  display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:9px 13px;border-radius:9px;
  transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.nav-link.is-active{color:var(--primary-dark);font-weight:700;background:var(--primary-light);}
.nav-cta-wrap{display:inline-flex;align-items:center;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--border);background:#fff;
  align-items:center;justify-content:center;
  color:var(--ink);font-size:17px;cursor:pointer;
  justify-self:start;
}
.nav-toggle:hover{border-color:#C7DAFB;color:var(--primary);}
.mobile-nav{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--border);
}
.mobile-nav a:last-of-type{border-bottom:none;}
.mobile-nav a.is-active{color:var(--primary-dark);font-weight:700;}
.mobile-nav a i{color:#B8C6DA;font-size:13px;}
.mobile-nav .mobile-nav__cta{
  margin-top:14px;background:var(--primary);color:#fff;
  border-radius:var(--radius-btn);justify-content:center;
  border-bottom:none;font-weight:600;
}
.header-cta{justify-self:end;display:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 64px;
  background:
    radial-gradient(900px 420px at 8% -10%,rgba(47,107,223,.14),transparent 62%),
    radial-gradient(700px 380px at 96% 4%,rgba(23,168,154,.12),transparent 60%),
    linear-gradient(180deg,#F4F8FF 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,223,.16) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  pointer-events:none;
}
.hero__inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:56px;
  align-items:center;
  min-height:600px;
}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{
  position:relative;color:var(--primary-dark);
  background:linear-gradient(180deg,transparent 62%,rgba(47,107,223,.18) 62%);
}
.hero__sub{font-size:18px;color:var(--ink-2);max-width:560px;margin-bottom:30px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero__badges span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:7px 14px;box-shadow:0 4px 14px rgba(16,42,84,.05);
}
.hero__badges i{color:var(--teal);font-size:12px;}
.hero__visual{position:relative;}
.hero__frame{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 24px 60px rgba(16,42,84,.16);
  border:1px solid #DFE9F7;
  background:linear-gradient(140deg,#E9F1FE,#F7FAFD);
  aspect-ratio:4/3;
}
.hero__frame img{width:100%;height:100%;object-fit:cover;}
.hero__float{
  position:absolute;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:14px 18px;box-shadow:0 14px 34px rgba(16,42,84,.12);
  display:flex;align-items:center;gap:12px;
}
.hero__float strong{display:block;font-size:19px;line-height:1.2;}
.hero__float span{font-size:12.5px;color:var(--ink-2);}
.hero__float i{font-size:18px;}
.hero__float--a{bottom:22px;left:-26px;}
.hero__float--b{top:26px;right:-22px;}
.hero__float--a i{color:var(--primary);}
.hero__float--b i{color:var(--orange);}

/* ---------- Trust bar ---------- */
.trustbar{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:26px 0;
}
.trustbar__grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.trust-item{display:flex;align-items:center;gap:14px;}
.trust-item i{
  width:42px;height:42px;border-radius:12px;flex:0 0 42px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:16px;
}
.trust-item strong{display:block;font-size:20px;line-height:1.25;letter-spacing:-.01em;}
.trust-item span{font-size:13.5px;color:var(--ink-2);}

/* ---------- Ladder (优惠阶梯) ---------- */
.ladder{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;
  align-items:start;
}
.ladder::before{
  content:"";position:absolute;left:2%;right:2%;top:38px;height:2px;
  background:linear-gradient(90deg,#D7E5FF,#9FC2F7,#D7E5FF);z-index:0;
}
.ladder-card{
  position:relative;z-index:1;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  margin-top:0;
}
.ladder-card:nth-child(2){margin-top:20px;}
.ladder-card:nth-child(3){margin-top:40px;}
.ladder-card:nth-child(4){margin-top:60px;}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.ladder-card.is-featured{border-color:#B9D2FB;background:linear-gradient(180deg,#F6FAFF,#FFFFFF);}
.ladder-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid #C7DAFB;color:var(--primary-dark);
  font-weight:800;font-size:16px;margin-bottom:18px;
  box-shadow:0 6px 16px rgba(47,107,223,.14);
}
.ladder-card.is-featured .ladder-step{background:var(--primary);border-color:var(--primary);color:#fff;}
.ladder-card h3{font-size:19px;margin-bottom:10px;}
.ladder-card p{color:var(--ink-2);font-size:14.5px;min-height:48px;margin-bottom:16px;}
.ladder-list{margin-bottom:20px;}
.ladder-list li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:14.5px;color:var(--ink);padding:5px 0;
}
.ladder-list i{color:var(--teal);font-size:13px;margin-top:5px;}
.ladder-threshold{
  font-size:13px;font-weight:600;color:var(--primary-dark);
  background:var(--primary-light);border-radius:8px;
  padding:8px 12px;margin-bottom:16px;display:block;
}
.ladder-card.is-featured .ladder-threshold{background:#DCEAFF;}

/* ---------- Compare matrix ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.compare-scroll{overflow-x:auto;}
.compare-scroll::-webkit-scrollbar{height:8px;}
.compare-scroll::-webkit-scrollbar-thumb{background:#D7E2F0;border-radius:999px;}
table.compare{
  width:100%;min-width:820px;border-collapse:collapse;background:#fff;
}
table.compare th,table.compare td{
  padding:18px 22px;text-align:left;border-bottom:1px solid var(--border);
  font-size:15px;vertical-align:middle;
}
table.compare thead th{
  font-size:16px;font-weight:700;background:#FBFDFF;
  border-bottom:1px solid var(--border);white-space:nowrap;
}
table.compare thead th:first-child{color:var(--ink-2);font-weight:600;font-size:14.5px;}
table.compare tbody td:first-child{color:var(--ink-2);font-weight:500;background:#FCFDFF;}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare td.col-featured{background:#F4F9FF;position:relative;}
table.compare thead th.col-featured{
  background:linear-gradient(180deg,#E4EFFF,#F4F9FF);
  border-top:3px solid var(--primary);
}
table.compare .plan-name{font-size:17px;font-weight:800;display:block;color:var(--ink);}
table.compare .plan-price{font-size:13.5px;color:var(--ink-2);font-weight:500;}
table.compare .yes{color:var(--success);font-weight:700;}
table.compare .no{color:#A9B6C8;}
table.compare i.fa-check{color:var(--success);margin-right:7px;}
table.compare i.fa-minus{color:#C3CEDD;margin-right:7px;}

/* ---------- Flash bar ---------- */
.flash{
  background:linear-gradient(90deg,#FFF7EE,#FFF1E0);
  border:1px solid #F9DFC0;
  border-radius:var(--radius-card);
  padding:30px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 10px 30px rgba(242,140,40,.10);
}
.flash__left h3{font-size:24px;margin-bottom:8px;}
.flash__left p{color:#8A6327;font-size:15px;}
.flash__right{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.countdown{display:flex;gap:10px;}
.countdown span{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:62px;padding:9px 8px;border-radius:12px;
  background:#fff;border:1px solid #F9DFC0;
  font-size:22px;font-weight:800;color:#B9670F;line-height:1.1;
}
.countdown span small{font-size:11.5px;font-weight:500;color:#A98A62;margin-top:4px;letter-spacing:.05em;}

/* ---------- News grid ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.news-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.news-card--lead{grid-column:span 2;}
.news-card__thumb{
  aspect-ratio:16/9;background:linear-gradient(140deg,#E9F1FE,#F4F8FF);overflow:hidden;
}
.news-card--lead .news-card__thumb{aspect-ratio:21/9;}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-card__thumb img{transform:scale(1.04);}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-card__meta{
  display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap;
}
.news-card__meta time{font-size:13px;color:var(--ink-2);}
.news-card h3{font-size:18px;margin-bottom:10px;line-height:1.45;}
.news-card--lead h3{font-size:22px;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--primary-dark);}
.news-card__excerpt{
  color:var(--ink-2);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.news-card--lead .news-card__excerpt{-webkit-line-clamp:3;}
.news-card__more{
  margin-top:auto;font-size:14.5px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:7px;
}
.news-card__more i{transition:transform .18s ease;}
.news-card:hover .news-card__more i{transform:translateX(4px);}
.news-empty{
  grid-column:1/-1;
  background:#fff;border:1px dashed #CEDAEC;border-radius:var(--radius-card);
  padding:52px 24px;text-align:center;color:var(--ink-2);font-size:15px;
}
.news-empty i{display:block;font-size:26px;color:#B9C9E0;margin-bottom:12px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#C7DAFB;box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16.5px;font-weight:700;color:var(--ink);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open] summary{color:var(--primary-dark);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
}
.faq-item summary i{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:12px;
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item[open] summary i{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-item .faq-answer{
  padding:0 24px 22px 24px;color:var(--ink-2);font-size:15.5px;line-height:1.8;
}
.faq-item .faq-answer p+p{margin-top:12px;}

/* ---------- Contact form ---------- */
.contact{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;
}
.contact__aside{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:34px 30px;box-shadow:var(--shadow-card);
}
.contact__aside h2{font-size:clamp(24px,3.2vw,32px);margin-bottom:14px;}
.contact__aside>p{color:var(--ink-2);font-size:15.5px;margin-bottom:26px;}
.contact-points li{
  display:flex;gap:14px;align-items:flex-start;padding:14px 0;
  border-top:1px solid var(--border);
}
.contact-points li:first-child{border-top:none;padding-top:0;}
.contact-points i{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:15px;
}
.contact-points strong{display:block;font-size:15px;margin-bottom:2px;}
.contact-points span{font-size:13.8px;color:var(--ink-2);}
.form-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:34px 32px;box-shadow:var(--shadow-card);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:14.5px;font-weight:600;color:var(--ink);}
.field label .req{color:var(--error);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 15px;
  font-size:15px;font-family:inherit;color:var(--ink);
  background:#FCFDFF;border:1px solid var(--border);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{height:auto;min-height:118px;padding:13px 15px;line-height:1.7;resize:vertical;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%235A6B80'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:14px;}
.field input::placeholder,.field textarea::placeholder{color:#A6B3C4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 3px rgba(47,107,223,.14);
}
.form-note{font-size:13px;color:var(--ink-2);margin-top:14px;}
.form-actions{margin-top:24px;display:flex;justify-content:flex-end;gap:12px;}

/* ---------- Footer ---------- */
.site-footer{
  background:#FFFFFF;border-top:1px solid var(--border);
  padding:60px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand .brand{justify-self:start;margin-bottom:16px;}
.footer-brand p{color:var(--ink-2);font-size:14.5px;max-width:300px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--ink-2);}
.footer-col a:hover{color:var(--primary-dark);}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);margin-bottom:12px;line-height:1.6;}
.footer-contact i{color:var(--primary);font-size:14px;margin-top:5px;}
.footer-bottom{
  border-top:1px solid var(--border);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom a{font-size:13.5px;color:#8B99AC;}
.footer-bottom a:hover{color:var(--primary-dark);}
.footer-tags{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{max-width:1040px;}
  .hero__inner{gap:40px;min-height:560px;}
  .hero__float--a{left:-10px;}
  .hero__float--b{right:-8px;}
  .ladder{grid-template-columns:repeat(2,1fr);}
  .ladder::before{display:none;}
  .ladder-card:nth-child(2),.ladder-card:nth-child(3),.ladder-card:nth-child(4){margin-top:0;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:inline-flex;}
  .header-inner{grid-template-columns:auto 1fr auto;height:66px;}
  .brand{font-size:18px;justify-self:center;}
  .hero{padding:52px 0 48px;}
  .hero__inner{grid-template-columns:1fr;min-height:auto;gap:36px;}
  .hero__visual{order:-1;}
  .hero__frame{aspect-ratio:16/10;}
  .hero__float--a{bottom:14px;left:10px;}
  .hero__float--b{top:14px;right:10px;}
  .trustbar__grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--lead{grid-column:span 2;}
  .contact{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .hero{padding:40px 0 40px;}
  .hero__sub{font-size:16.5px;margin-bottom:24px;}
  .hero__actions{gap:12px;}
  .hero__actions .btn{flex:1 1 auto;}
  .hero__badges span{font-size:12.5px;padding:6px 12px;}
  .trustbar__grid{grid-template-columns:1fr;gap:16px;}
  .trust-item strong{font-size:18px;}
  .ladder{grid-template-columns:1fr;gap:18px;}
  .compare-wrap{border-radius:14px;}
  table.compare th,table.compare td{padding:14px 16px;font-size:14.5px;}
  .flash{flex-direction:column;align-items:flex-start;padding:24px 22px;gap:20px;}
  .flash__right{width:100%;justify-content:space-between;}
  .countdown span{min-width:56px;font-size:19px;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .news-grid{grid-template-columns:1fr;gap:18px;}
  .news-card--lead{grid-column:span 1;}
  .news-card--lead .news-card__thumb{aspect-ratio:16/9;}
  .news-card--lead h3{font-size:19px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-item .faq-answer{padding:0 18px 18px 18px;font-size:14.8px;}
  .form-card{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;gap:16px;}
  .form-actions{flex-direction:column-reverse;}
  .form-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  .brand{font-size:16.5px;}
  .brand__mark{width:30px;height:30px;font-size:12px;}
  .hero__float{padding:11px 14px;}
  .hero__float strong{font-size:16px;}
  .hero__float span{font-size:11.5px;}
  .countdown span{min-width:50px;padding:8px 6px;font-size:17px;}
}

/* roulang page: article */
:root{
  --primary:#2F6BDF;
  --primary-dark:#1E4FAF;
  --primary-light:#EAF2FF;
  --teal:#17A89A;
  --orange:#F28C28;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --ink:#0E1B2C;
  --muted:#5A6B80;
  --border:#E3EAF3;
  --success:#1E9E6A;
  --danger:#D64545;
  --radius:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 10px 30px rgba(16,42,84,.08);
  --shadow-hover:0 16px 40px rgba(16,42,84,.12);
  --shadow-nav:0 8px 24px rgba(16,42,84,.06);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  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 .2s ease,background-color .2s ease,box-shadow .2s ease,transform .2s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.2;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1280px){.container{max-width:1280px;}}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:74px;
  gap:12px;
}
.nav-side{display:flex;align-items:center;gap:4px;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--muted);
  white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.is-active{color:var(--primary);background:var(--primary-light);}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);}
.brand__mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(47,107,223,.28);
}
.brand__text{letter-spacing:-.01em;}
.nav-cta{margin-left:8px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:46px;border:1px solid transparent;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  cursor:pointer;background:none;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,107,223,.24);}
.btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,79,175,.28);}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(30,79,175,.24);}
.btn--ghost{background:#fff;color:var(--primary);border-color:#C8D9F8;}
.btn--ghost:hover{background:var(--primary-light);border-color:var(--primary);transform:translateY(-2px);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn--wide{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}

.mobile-bar{display:none;align-items:center;justify-content:space-between;height:62px;gap:10px;}
.menu-toggle{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--border);
  background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:17px;
}
.menu-toggle:hover{border-color:var(--primary);color:var(--primary);}
.mobile-menu{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:10px 0 18px;
}
.mobile-menu.is-open{display:block;}
.mobile-menu ul{display:flex;flex-direction:column;gap:2px;}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px dashed var(--border);
}
.mobile-menu a:last-child{border-bottom:none;}
.mobile-menu a.is-active{color:var(--primary);}
.mobile-menu .m-cta{margin-top:14px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:52px 0 44px;
  background-image:linear-gradient(180deg,rgba(234,242,255,.92) 0%,rgba(247,250,253,.98) 82%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,223,.14) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);margin-bottom:16px;
}
.breadcrumb a{color:var(--primary);font-weight:600;}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;}
.breadcrumb .sep{color:#B6C4D6;}
.breadcrumb .crumb-current{color:var(--muted);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.24;max-width:24ch;color:var(--ink);
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;}
.meta-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.meta-item i{color:var(--primary);}
.meta-tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:#fff;color:var(--primary);border:1px solid #C8D9F8;
}

/* ---------- article layout ---------- */
.article-main{padding:56px 0 20px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;align-items:start;}
.article-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.article-cover{margin:0;background:linear-gradient(180deg,#EAF2FF,#F7FAFD);}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover;}
.article-body{
  max-width:860px;margin:0 auto;padding:40px 46px 30px;
  font-size:17px;line-height:1.85;color:#17263A;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);margin:1.9em 0 .8em;
  padding-left:14px;border-left:4px solid var(--primary);line-height:1.35;
}
.article-body h3{font-size:20px;margin:1.6em 0 .6em;color:var(--ink);}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--primary-dark);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--primary);opacity:.85;
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:6px;background:var(--primary-light);
  color:var(--primary);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.article-body a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(47,107,223,.35);}
.article-body a:hover{color:var(--primary-dark);border-bottom-color:var(--primary-dark);}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--primary);
  background:#F4F8FF;border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:1.4em auto;box-shadow:var(--shadow);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.6em 0;
  font-size:15px;border:1px solid var(--border);border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--primary-light);color:var(--primary-dark);
  font-weight:700;text-align:left;padding:12px 16px;
}
.article-body td{padding:12px 16px;border-top:1px solid var(--border);color:#22334A;}
.article-body tbody tr:nth-child(even) td{background:#FAFCFF;}
.article-body pre{
  background:#F4F7FB;border:1px solid var(--border);border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.5em 0;
}
.article-body code{
  background:#F1F5FA;border-radius:6px;padding:2px 6px;font-size:.92em;color:var(--primary-dark);
}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body hr{border:none;border-top:1px solid var(--border);margin:2.2em 0;}

.article-foot{
  border-top:1px solid var(--border);
  padding:24px 46px 34px;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  background:#FCFDFF;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--primary-light);color:var(--primary-dark);
}
.tag--muted{background:#F1F5FA;color:var(--muted);}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);}
.share-btn{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--border);
  background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.share-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light);}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:98px;display:flex;flex-direction:column;gap:20px;}
.aside-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px 22px;
}
.aside-title{
  font-size:16px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.aside-title i{color:var(--primary);}
.aside-links li + li{margin-top:6px;}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;font-weight:600;color:#22334A;
}
.aside-links a:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateX(2px);}
.aside-links i{font-size:12px;color:#B6C4D6;}
.aside-note{background:linear-gradient(160deg,#EAF2FF 0%,#F7FAFD 100%);}
.aside-note p{font-size:14px;color:var(--muted);margin-top:8px;}
.aside-note .badge-online{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--success);
}
.aside-note .badge-online::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--success);
  box-shadow:0 0 0 4px rgba(30,158,106,.14);
}

/* ---------- empty state ---------- */
.empty-state{
  max-width:620px;margin:0 auto;padding:70px 30px;text-align:center;
}
.empty-state i{font-size:40px;color:#B6C4D6;}
.empty-state h2{margin:18px 0 10px;font-size:24px;}
.empty-state p{color:var(--muted);margin-bottom:24px;}

/* ---------- related ---------- */
.section{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--primary);
  background:var(--primary-light);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(23px,3vw,32px);}
.section-head p{color:var(--muted);margin-top:12px;font-size:15.5px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.post-card__media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(180deg,#EAF2FF,#F7FAFD);}
.post-card__media img{width:100%;height:100%;object-fit:cover;}
.post-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card__meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);}
.post-card__meta .chip{
  padding:3px 10px;border-radius:999px;background:var(--primary-light);
  color:var(--primary-dark);font-weight:700;font-size:12px;
}
.post-card h3{font-size:17.5px;line-height:1.45;}
.post-card h3 a:hover{color:var(--primary);}
.post-card p{font-size:14px;color:var(--muted);line-height:1.7;}
.post-card__link{
  margin-top:auto;font-size:14px;font-weight:700;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.post-card__link i{transition:transform .2s ease;}
.post-card:hover .post-card__link i{transform:translateX(4px);}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{
  border-radius:var(--radius);
  background:linear-gradient(120deg,#2F6BDF 0%,#1E4FAF 100%);
  color:#fff;padding:40px 44px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 18px 44px rgba(30,79,175,.22);
}
.cta-inner h2{font-size:clamp(21px,2.6vw,28px);color:#fff;}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.86);font-size:15px;max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn--light{background:#fff;color:var(--primary-dark);}
.btn--light:hover{background:#F1F6FF;transform:translateY(-2px);}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn--outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{
  background:#FFFFFF;border-top:1px solid var(--border);
  padding:56px 0 26px;margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:34px;border-bottom:1px solid var(--border);
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:38ch;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink);}
.footer-col ul li + li{margin-top:9px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);align-items:flex-start;}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding-top:22px;font-size:13.5px;color:var(--muted);
}
.footer-tags{display:flex;flex-wrap:wrap;gap:16px;}
.footer-tags a{font-size:13.5px;color:var(--muted);}
.footer-tags a:hover{color:var(--primary);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:26px;}
  .article-body{padding:36px 34px 26px;}
  .article-foot{padding:22px 34px 30px;}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-aside .aside-card{flex:1 1 280px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-inner{padding:34px 30px;}
}
@media (max-width:767px){
  .nav-wrap{display:none;}
  .mobile-bar{display:flex;}
  .page-hero{padding:38px 0 34px;}
  .page-hero h1{max-width:none;}
  .breadcrumb .crumb-current{max-width:100%;white-space:normal;}
  .article-main{padding:34px 0 10px;}
  .article-body{padding:28px 20px 20px;font-size:16px;line-height:1.8;}
  .article-body h2{font-size:20px;}
  .article-foot{padding:20px 20px 26px;flex-direction:column;align-items:flex-start;}
  .article-cover img{aspect-ratio:16/9;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .cta-band{padding:0 0 52px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:42px 0 22px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .brand__text{font-size:17px;}
  .btn{padding:0 18px;height:44px;font-size:14.5px;}
  .article-aside{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --primary:#2F6BDF;
  --primary-dark:#1E4FAF;
  --primary-light:#EAF2FF;
  --teal:#17A89A;
  --orange:#F28C28;
  --orange-light:#FFF3E4;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --ink:#0E1B2C;
  --ink-soft:#5A6B80;
  --border:#E3EAF3;
  --success:#1E9E6A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-card:0 10px 30px rgba(16,42,84,.08);
  --shadow-hover:0 16px 40px rgba(16,42,84,.12);
  --shadow-nav:0 8px 24px rgba(16,42,84,.06);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,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:16.5px;
  line-height:1.75;
  color:var(--ink);
  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-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-light);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;text-transform:uppercase;
}
h2.h2{font-size:clamp(26px,4vw,40px);line-height:1.2;}
.section-head p{color:var(--ink-soft);font-size:16.5px;margin-top:14px;}
.text-orange{color:var(--orange);}
.tabular{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,107,223,.24);}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,223,.3);}
.btn--ghost{background:#fff;color:var(--primary);border-color:#C9DBF9;}
.btn--ghost:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);}
.btn--orange{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(242,140,40,.26);}
.btn--orange:hover{background:#DE7A16;color:#fff;transform:translateY(-2px);}
.btn--sm{padding:11px 20px;font-size:14.5px;}
.btn--block{width:100%;}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,button:focus-visible{
  outline:2.5px solid var(--primary);outline-offset:2px;
}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-left{justify-content:flex-end;flex:1 1 0;}
.nav-right{justify-content:flex-start;flex:1 1 0;gap:10px;}
.nav-link{
  position:relative;display:inline-block;
  font-size:15.5px;font-weight:600;color:var(--ink-soft);
  padding:9px 14px;border-radius:9px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2.5px;
  border-radius:2px;background:var(--primary);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;
  padding:6px 4px;flex:0 0 auto;
}
.brand:hover{color:var(--primary);}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),#3F86F0);
  color:#fff;font-size:15px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(47,107,223,.28);
}
.brand__text{white-space:nowrap;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}
.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-panel{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:10px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:block;padding:13px 24px;font-weight:600;color:var(--ink-soft);
  border-bottom:1px solid #F1F5FA;
}
.mobile-panel a:hover,.mobile-panel a.is-active{color:var(--primary);background:var(--primary-light);}
.mobile-panel .btn{margin:16px 24px 0;width:calc(100% - 48px);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(255,255,255,.96) 0%,rgba(234,242,255,.9) 58%,rgba(234,242,255,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero::after{
  content:"";position:absolute;inset:auto -80px -120px auto;width:360px;height:360px;
  background:radial-gradient(circle,rgba(47,107,223,.14),transparent 68%);pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-soft);padding:22px 0 0;
}
.breadcrumb a{color:var(--primary);font-weight:600;}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;}
.breadcrumb .sep{color:#B7C5D8;}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;
  padding:44px 0 76px;
}
.hero h1{font-size:clamp(34px,5vw,54px);line-height:1.15;margin-bottom:18px;}
.hero h1 .accent{color:var(--primary);}
.hero-sub{font-size:17.5px;color:var(--ink-soft);max-width:560px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink-soft);
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:8px 15px;box-shadow:0 4px 14px rgba(16,42,84,.05);
}
.hero-badge i{color:var(--teal);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;}
.hero-media img{
  border-radius:var(--radius-img);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;object-fit:cover;width:100%;background:#E8EFF9;
}
.hero-float{
  position:absolute;left:-22px;bottom:-24px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:16px 20px;box-shadow:var(--shadow-card);max-width:250px;
}
.hero-float .num{font-size:26px;font-weight:800;color:var(--primary);line-height:1.1;}
.hero-float .lbl{font-size:13.5px;color:var(--ink-soft);}

/* ---------- process steps ---------- */
.process-rail{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
  margin-bottom:44px;position:relative;
}
.rail-item{position:relative;text-align:center;padding:22px 12px 18px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:0 6px 18px rgba(16,42,84,.05);}
.rail-item::after{
  content:"";position:absolute;top:38px;right:-18px;width:18px;height:2px;background:#D6E3F7;
}
.rail-item:last-child::after{display:none;}
.rail-step{
  width:34px;height:34px;margin:0 auto 12px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-weight:800;font-size:14.5px;
}
.rail-item.is-key .rail-step{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(47,107,223,.28);}
.rail-item h3{font-size:16.5px;margin-bottom:6px;}
.rail-item p{font-size:13.5px;color:var(--ink-soft);line-height:1.6;}
.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.detail-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.detail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.detail-card .k{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.06em;margin-bottom:10px;}
.detail-card h3{font-size:19px;margin-bottom:10px;}
.detail-card p{font-size:15px;color:var(--ink-soft);}
.detail-card ul{margin-top:14px;display:grid;gap:8px;}
.detail-card li{font-size:14.5px;color:var(--ink-soft);padding-left:20px;position:relative;}
.detail-card li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--teal);
}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:60px;}
.scene:last-child{margin-bottom:0;}
.scene.reverse .scene-media{order:2;}
.scene-media img{border-radius:var(--radius-img);box-shadow:var(--shadow-card);aspect-ratio:16/11;object-fit:cover;width:100%;background:#E8EFF9;}
.scene-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;
  color:var(--teal);background:#E6F7F5;border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.scene-body h3{font-size:clamp(21px,2.6vw,26px);margin-bottom:14px;}
.scene-body p{color:var(--ink-soft);font-size:16px;}
.scene-list{margin-top:18px;display:grid;gap:10px;}
.scene-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--ink-soft);}
.scene-list li i{position:absolute;left:0;top:.28em;color:var(--primary);font-size:14px;}

/* ---------- checklist ---------- */
.checklist-wrap{
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:44px 44px;box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;
}
.checklist-wrap h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px;}
.checklist-wrap .lead{color:var(--ink-soft);font-size:16px;}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:18px 20px;
}
.check-item i{color:var(--primary);font-size:17px;margin-top:4px;}
.check-item h4{font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14px;color:var(--ink-soft);}

/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:box-shadow .2s ease;}
.faq-item.is-open{box-shadow:var(--shadow-card);border-left:3px solid var(--primary);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--primary);}
.faq-q i{color:var(--primary);transition:transform .22s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{display:none;padding:0 24px 22px;color:var(--ink-soft);font-size:15.5px;line-height:1.75;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- contact ---------- */
.contact{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;}
.contact h2{font-size:clamp(26px,3.6vw,36px);margin-bottom:16px;}
.contact .lead{color:var(--ink-soft);font-size:16.5px;margin-bottom:26px;}
.contact-points{display:grid;gap:16px;}
.contact-point{display:flex;gap:14px;align-items:flex-start;}
.contact-point .ico{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:17px;
}
.contact-point h4{font-size:16px;margin-bottom:3px;}
.contact-point p{font-size:14.5px;color:var(--ink-soft);margin:0;}
.form-card{
  background:var(--bg);border:1px solid var(--border);border-radius:18px;
  padding:32px 30px;box-shadow:var(--shadow-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;display:flex;flex-direction:column;}
.field label{font-size:14.5px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-input);
  background:#fff;font-size:15.5px;font-family:inherit;color:var(--ink);
  padding:0 15px;height:48px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:118px;padding:13px 15px;resize:vertical;line-height:1.6;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,107,223,.14);
}
.form-note{font-size:13.5px;color:var(--ink-soft);margin-top:14px;}
.alert-ok{
  display:none;margin-bottom:18px;padding:14px 18px;border-radius:12px;
  background:#E7F7F1;border:1px solid #BEE7D8;color:#146B4A;font-size:15px;font-weight:600;
}
.alert-ok.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:#F2F6FC;border-top:1px solid var(--border);padding:60px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14.5px;color:var(--ink-soft);max-width:330px;}
.footer-col h4{font-size:15.5px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--ink-soft);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-soft);align-items:flex-start;}
.footer-contact i{color:var(--primary);margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:14px;color:var(--ink-soft);margin:0;}
.footer-tags{display:flex;flex-wrap:wrap;gap:16px;}
.footer-tags a{font-size:14px;color:var(--ink-soft);}
.footer-tags a:hover{color:var(--primary);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .hero-grid{gap:40px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{min-height:66px;}
  .hero-grid{grid-template-columns:1fr;padding:34px 0 60px;}
  .hero-float{position:static;margin-top:16px;max-width:none;}
  .process-rail{grid-template-columns:repeat(2,1fr);}
  .rail-item::after{display:none;}
  .detail-grid{grid-template-columns:1fr 1fr;}
  .scene{grid-template-columns:1fr;gap:26px;margin-bottom:44px;}
  .scene.reverse .scene-media{order:0;}
  .checklist-wrap{grid-template-columns:1fr;padding:32px 26px;gap:28px;}
  .contact-grid{grid-template-columns:1fr;gap:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .hero h1{font-size:clamp(30px,7vw,40px);}
  .hero-sub{font-size:16px;}
  .hero-cta .btn{flex:1 1 100%;}
  .process-rail{grid-template-columns:1fr;}
  .detail-grid{grid-template-columns:1fr;}
  .check-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a{padding:0 18px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .brand{font-size:17px;}
  .brand__mark{width:34px;height:34px;border-radius:10px;font-size:13.5px;}
  .btn{padding:13px 20px;font-size:15px;}
}

/* roulang page: category2 */
:root{
  --brand:#2F6BDF;
  --brand-dark:#1E4FAF;
  --brand-light:#EAF2FF;
  --teal:#17A89A;
  --orange:#F28C28;
  --orange-light:#FFF4E8;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --ink:#0E1B2C;
  --ink-2:#5A6B80;
  --line:#E3EAF3;
  --success:#1E9E6A;
  --error:#D64545;
  --r-card:16px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --sh:0 10px 30px rgba(16,42,84,.08);
  --sh-hover:0 16px 40px rgba(16,42,84,.12);
  --sh-nav:0 8px 24px rgba(16,42,84,.06);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,dl,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:80px 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:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-dark);background:var(--brand-light);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;color:var(--teal);}
h1{font-size:clamp(34px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(26px,4vw,40px);line-height:1.2;font-weight:800;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
.lead{font-size:17px;color:var(--ink-2);line-height:1.8;}
.muted{color:var(--ink-2);font-size:14px;}
.num{font-variant-numeric:tabular-nums;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;border-radius:var(--r-btn);
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn i{font-size:13px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,223,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,223,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9DBFB;}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px);}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(242,140,40,.24);}
.btn-orange:hover{background:#DE7A18;color:#fff;transform:translateY(-2px);}
.btn-text{color:var(--brand);padding:6px 0;font-weight:600;}
.btn-text:hover{color:var(--brand-dark);}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(4px);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
}
.tag--teal{background:rgba(23,168,154,.12);color:#0F7A70;}
.tag--orange{background:var(--orange-light);color:#B9660F;}
.tag--line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.nav-bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.brand-wrap{display:flex;justify-content:center;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
}
.brand:hover{color:var(--ink);}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#4C86EE);
  color:#fff;font-size:15px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(47,107,223,.28);
}
.nav-right .btn{padding:11px 20px;font-size:14px;margin-left:8px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);
}
.nav-toggle:hover{background:var(--brand-light);color:var(--brand);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 18px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.is-active{color:var(--brand);background:var(--brand-light);}
.mobile-panel a i{color:var(--ink-2);font-size:13px;}

/* 面包屑 */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;font-size:13px;color:var(--ink-2);
}
.crumb a{color:var(--brand);font-weight:600;}
.crumb a:hover{color:var(--brand-dark);text-decoration:underline;}
.crumb i{font-size:10px;color:#A9B8CB;}
.crumb .current{color:var(--ink-2);}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% 8%, rgba(23,168,154,.10), transparent 62%),
    linear-gradient(180deg,#F2F7FF 0%,#F7FAFD 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,223,.16) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
  padding:72px 0 76px;
}
.hero h1 span{color:var(--brand);}
.hero .lead{margin-top:20px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-points .tag{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.hero-points .tag i{color:var(--teal);}
.hero-visual{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--sh-hover);
  background:#E8F0FB;
  border:1px solid #DCE7F6;
}
.hero-visual img{
  width:100%;height:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:20px;
}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.95);
  border:1px solid var(--line);
  border-radius:14px;
  padding:16px 18px;
  box-shadow:var(--sh);
  display:flex;align-items:center;gap:14px;
}
.hero-float .dot{
  width:10px;height:10px;border-radius:50%;background:var(--teal);
  box-shadow:0 0 0 4px rgba(23,168,154,.16);
  flex:0 0 auto;
}
.hero-float strong{display:block;font-size:14px;}
.hero-float span{font-size:13px;color:var(--ink-2);}

/* 步骤概览条 */
.steps-strip{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  margin-top:-40px;
  position:relative;
  z-index:5;
}
.steps-strip__item{
  padding:22px 20px;
  border-right:1px solid var(--line);
}
.steps-strip__item:last-child{border-right:0;}
.steps-strip__item b{
  display:block;font-size:13px;color:var(--brand);font-weight:700;margin-bottom:6px;
  font-variant-numeric:tabular-nums;
}
.steps-strip__item span{font-size:14px;color:var(--ink-2);line-height:1.6;}

/* 场景左右交替 */
.scene-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  align-items:stretch;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
  margin-bottom:28px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.scene-row:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);}
.scene-row:last-child{margin-bottom:0;}
.scene-media{background:#E8F0FB;min-height:280px;}
.scene-media img{width:100%;height:100%;min-height:280px;object-fit:cover;}
.scene-body{padding:44px;display:flex;flex-direction:column;justify-content:center;}
.scene-body h3{margin:14px 0 12px;font-size:22px;}
.scene-body p{color:var(--ink-2);font-size:15.5px;}
.scene-list{margin-top:20px;display:grid;gap:10px;}
.scene-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.scene-list i{color:var(--teal);font-size:13px;margin-top:6px;}
.scene-row.is-reverse .scene-media{order:2;}
.scene-row.is-reverse .scene-body{order:1;}

/* 时间轴 */
.timeline{
  position:relative;
  max-width:900px;
  margin:0 auto;
  padding-left:8px;
}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand),#B9D2FA);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding:0 0 30px 76px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item__dot{
  position:absolute;left:0;top:2px;
  width:56px;height:56px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:var(--brand);
  box-shadow:var(--sh);
  font-variant-numeric:tabular-nums;
}
.tl-item__card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--sh);
  transition:box-shadow .25s ease,transform .25s ease;
}
.tl-item__card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.tl-item__card h3{font-size:19px;margin-bottom:8px;}
.tl-item__card p{color:var(--ink-2);font-size:15.5px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tl-meta .tag--line{font-weight:600;}

/* 准备清单 */
.check-panel{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh);
}
.check-card h3{margin-bottom:8px;}
.check-card > p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.check-list{display:grid;gap:14px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:12px;background:var(--bg);
  border:1px solid var(--line);
}
.check-list .ico{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:12px;
}
.check-list b{display:block;font-size:15px;margin-bottom:2px;}
.check-list span{font-size:14px;color:var(--ink-2);line-height:1.65;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-item[open]{box-shadow:var(--sh-hover);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;font-size:16.5px;font-weight:700;color:var(--ink);
  border-left:4px solid transparent;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item[open] summary{border-left-color:var(--brand);color:var(--brand-dark);}
.faq-item summary i{
  color:var(--brand);font-size:13px;transition:transform .25s ease;flex:0 0 auto;
}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-body{
  padding:0 26px 24px 30px;color:var(--ink-2);font-size:15.5px;line-height:1.8;
  border-top:1px solid var(--line);padding-top:20px;
}
.faq-body p + p{margin-top:12px;}

/* 咨询表单 */
.contact-band{
  background:linear-gradient(180deg,#FFFFFF 0%,#F3F8FF 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.contact-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:56px;
  align-items:start;
}
.contact-info h2{margin-bottom:16px;}
.contact-info .lead{max-width:460px;}
.contact-ways{margin-top:30px;display:grid;gap:14px;}
.contact-ways li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;box-shadow:var(--sh);
}
.contact-ways .ico{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:14px;
}
.contact-ways b{display:block;font-size:15px;}
.contact-ways span{font-size:14px;color:var(--ink-2);}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px;box-shadow:var(--sh-hover);
}
.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 label .req{color:var(--error);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#FBFDFF;
  padding:0 14px;
  height:48px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9FB0C4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(47,107,223,.14);
}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form-actions .muted{font-size:13px;}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--ink-2);}

/* CTA 返回条 */
.back-band{
  background:#fff;border-top:1px solid var(--line);
}
.back-grid{
  display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
  padding:44px 0;
}
.back-grid h3{font-size:22px;margin-bottom:6px;}
.back-grid p{color:var(--ink-2);font-size:15px;}
.back-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  background:#F2F6FC;
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  color:var(--ink-2);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px;}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:5px;flex:0 0 auto;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-2);}
.footer-tags{display:flex;gap:18px;flex-wrap:wrap;}
.footer-tags a{font-size:13px;color:var(--ink-2);font-weight:600;}
.footer-tags a:hover{color:var(--brand);}

/* 响应式 */
@media screen and (max-width:1199px){
  .container{padding:0 20px;}
  .hero-inner{gap:40px;}
  .contact-grid{gap:40px;}
}
@media screen and (max-width:1023px){
  .section{padding:64px 0;}
  .nav-link{padding:10px 10px;font-size:14px;}
  .hero-inner{grid-template-columns:1fr;padding:56px 0 64px;}
  .hero-visual img{aspect-ratio:16/9;}
  .steps-strip{grid-template-columns:repeat(3,1fr);margin-top:-28px;}
  .steps-strip__item{border-bottom:1px solid var(--line);}
  .steps-strip__item:nth-child(3n){border-right:0;}
  .scene-body{padding:32px;}
  .check-panel{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  .section{padding:48px 0;}
  .nav-bar{grid-template-columns:auto 1fr auto;min-height:64px;gap:12px;}
  .nav-side,.nav-right .nav-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-wrap{justify-content:center;}
  .nav-right{justify-content:flex-end;}
  .nav-right .btn{margin-left:0;padding:10px 16px;font-size:14px;}
  .hero-inner{padding:44px 0 56px;}
  .hero .lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .steps-strip{grid-template-columns:1fr;margin-top:0;}
  .steps-strip__item{border-right:0;}
  .scene-row{grid-template-columns:1fr;}
  .scene-row.is-reverse .scene-media{order:0;}
  .scene-row.is-reverse .scene-body{order:0;}
  .scene-media,.scene-media img{min-height:220px;}
  .scene-body{padding:26px;}
  .timeline::before{left:19px;}
  .tl-item{padding-left:56px;}
  .tl-item__dot{width:40px;height:40px;font-size:14px;}
  .tl-item__card{padding:20px;}
  .check-card{padding:24px;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .back-grid{grid-template-columns:1fr;padding:36px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:479px){
  .container{padding:0 16px;}
  .brand{font-size:17px;}
  .brand__mark{width:34px;height:34px;font-size:14px;}
  .hero-float{position:static;margin:16px;left:auto;right:auto;bottom:auto;}
  .hero-visual img{border-radius:0;}
}

/* roulang page: category3 */
:root{
  --primary:#2F6BDF;
  --primary-dark:#1E4FAF;
  --primary-light:#EAF2FF;
  --teal:#17A89A;
  --orange:#F28C28;
  --orange-light:#FFF3E4;
  --bg:#F7FAFD;
  --card:#FFFFFF;
  --ink:#0E1B2C;
  --muted:#5A6B80;
  --line:#E3EAF3;
  --success:#1E9E6A;
  --danger:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:10px;
  --shadow-card:0 10px 30px rgba(16,42,84,.08);
  --shadow-hover:0 16px 40px rgba(16,42,84,.12);
  --shadow-nav:0 8px 24px rgba(16,42,84,.06);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{
  margin:0 0 .6em;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
h1{font-size:clamp(34px,5vw,52px);line-height:1.15;font-weight:800;}
h2{font-size:clamp(26px,4vw,38px);line-height:1.2;font-weight:800;}
h3{font-size:21px;line-height:1.35;font-weight:700;}
h4{font-size:17px;line-height:1.4;font-weight:700;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input,textarea,select{font-family:inherit;font-size: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 24px;
}
@media (min-width:1280px){
  .container{max-width:1280px;}
}

.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-head p{color:var(--muted);font-size:17px;margin:12px 0 0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:15.5px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(47,107,223,.24);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(47,107,223,.3);
}
.btn-outline{
  background:#fff;
  color:var(--primary);
  border-color:rgba(47,107,223,.4);
}
.btn-outline:hover{
  background:var(--primary-light);
  color:var(--primary-dark);
  border-color:var(--primary);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  padding:10px 4px;
  border-radius:8px;
}
.btn-ghost:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm{padding:10px 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  background:var(--primary-light);
  color:var(--primary-dark);
  line-height:1.4;
}
.tag--teal{background:rgba(23,168,154,.12);color:#0F7D72;}
.tag--orange{background:var(--orange-light);color:#B4600E;}
.tag--line{background:#fff;border:1px solid var(--line);color:var(--muted);}
.badge-hot{
  display:inline-flex;
  align-items:center;
  gap:5px;
  background:var(--orange);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:4px 10px;
  border-radius:999px;
  letter-spacing:.02em;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-left{justify-self:end;}
.nav-right{justify-self:start;}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:9px;
  transition:color .2s ease, background-color .2s ease;
}
.nav-link:hover{color:var(--primary-dark);background:var(--primary-light);}
.nav-link.is-active{color:var(--primary-dark);font-weight:700;background:var(--primary-light);}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:800;
  color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--primary-dark);}
.brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary),#4C86EC);
  color:#fff;
  font-size:15px;
  font-weight:800;
  letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(47,107,223,.28);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:11px;
  color:var(--ink);
  cursor:pointer;
  font-size:17px;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.mobile-cta{display:none;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:13px 4px;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.is-active{color:var(--primary-dark);font-weight:700;}
.mobile-panel .btn{margin-top:16px;border-bottom:0;color:#fff;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(120deg, rgba(234,242,255,.94) 0%, rgba(255,255,255,.96) 55%, rgba(255,243,228,.7) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(47,107,223,.14) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:56px;
  align-items:center;
  padding:64px 0 68px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--primary);font-weight:500;}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb span.sep{color:#B8C6D8;}
.hero-title{font-size:clamp(32px,4.4vw,50px);line-height:1.14;margin-bottom:18px;font-weight:800;}
.hero-title em{
  font-style:normal;
  color:var(--primary);
  background:linear-gradient(180deg,transparent 62%, rgba(47,107,223,.18) 62%);
  padding:0 2px;
}
.hero-sub{
  font-size:17.5px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  max-width:560px;
}
.metric{
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  box-shadow:0 6px 18px rgba(16,42,84,.05);
}
.metric strong{
  display:block;
  font-size:22px;
  font-weight:800;
  color:var(--primary-dark);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:18px;
  box-shadow:0 22px 50px rgba(16,42,84,.16);
  background:#E8EFF9;
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 18px;
  box-shadow:0 16px 36px rgba(16,42,84,.14);
  min-width:210px;
}
.hero-float strong{display:block;font-size:14px;color:var(--ink);font-weight:700;}
.hero-float span{font-size:13px;color:var(--muted);}
.hero-float .dot{
  display:inline-block;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--teal);
  margin-right:7px;
  vertical-align:middle;
}

/* ---------- 通用卡片 ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D4E1F5;}

/* ---------- 案例交错网格 ---------- */
.case-list{display:flex;flex-direction:column;gap:44px;}
.case-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:46px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:box-shadow .25s ease, transform .25s ease;
}
.case-row:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.case-row:nth-child(even) .case-media{order:2;}
.case-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:12px;
  background:#E8EFF9;
}
.case-body .case-kicker{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:14px;
}
.case-body h3{margin-bottom:12px;}
.case-body p{color:var(--muted);font-size:15.5px;}
.case-points{
  margin-top:18px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.case-points li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--ink);
}
.case-points i{color:var(--teal);margin-top:5px;font-size:13px;}
.case-note{
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
  background:var(--bg);
  border-radius:10px;
  padding:10px 14px;
}

/* ---------- 对比矩阵 ---------- */
.compare-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;scrollbar-width:thin;}
.table-scroll::-webkit-scrollbar{height:8px;}
.table-scroll::-webkit-scrollbar-thumb{background:#D3E0F1;border-radius:999px;}
table.compare{
  width:100%;
  min-width:820px;
  border-collapse:separate;
  border-spacing:0;
  margin:0;
  background:#fff;
}
table.compare th,
table.compare td{
  padding:16px 18px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-size:15px;
  vertical-align:top;
}
table.compare thead th{
  background:#F4F8FE;
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.compare thead th.col-head{
  font-size:16px;
  line-height:1.4;
}
table.compare thead th small{display:block;font-size:12.5px;font-weight:500;color:var(--muted);margin-top:4px;}
table.compare tbody th{
  font-weight:600;
  color:var(--muted);
  background:#FBFDFF;
  width:180px;
  white-space:nowrap;
}
table.compare td{color:var(--ink);}
table.compare .col-hot{background:rgba(234,242,255,.72);}
table.compare thead .col-hot{background:var(--primary-light);}
table.compare tbody tr:last-child th,
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td .cell-tick{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
table.compare td .cell-tick i{color:var(--teal);font-size:13px;}
table.compare td .cell-tick.muted i{color:#B8C6D8;}
.compare-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:#FBFDFF;
  border-top:1px solid var(--line);
}
.compare-foot p{font-size:14px;color:var(--muted);margin:0;}
.compare-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 差异速览 ---------- */
.pick-list{display:flex;flex-direction:column;gap:16px;}
.pick-item{
  display:grid;
  grid-template-columns:56px 1fr auto;
  gap:20px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px 24px;
  box-shadow:0 6px 18px rgba(16,42,84,.05);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.pick-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D4E1F5;}
.pick-num{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-weight:800;
  font-size:17px;
  font-variant-numeric:tabular-nums;
}
.pick-item h3{font-size:18px;margin-bottom:6px;}
.pick-item p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:0 6px 18px rgba(16,42,84,.05);
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open]{border-color:#C9DCF8;box-shadow:0 12px 28px rgba(16,42,84,.09);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 54px 20px 22px;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  position:relative;
  border-left:3px solid transparent;
  transition:color .2s ease, border-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary-dark);}
.faq-item[open] summary{border-left-color:var(--primary);color:var(--primary-dark);}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--primary);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq-answer{padding:0 24px 22px 24px;color:var(--muted);font-size:15.5px;line-height:1.8;}
.faq-answer p{margin-bottom:.9em;}

/* ---------- 表单 ---------- */
.contact-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.contact-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:52px;
  align-items:start;
}
.contact-intro h2{margin-bottom:16px;}
.contact-intro p{color:var(--muted);font-size:16px;}
.contact-facts{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.contact-facts li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  font-size:15px;
  color:var(--ink);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;
  padding:14px 16px;
}
.contact-facts i{
  color:var(--primary);
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);
  border-radius:10px;
  flex:0 0 auto;
}
.contact-facts strong{display:block;font-size:14.5px;}
.contact-facts span{font-size:14px;color:var(--muted);}
.form-card{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.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 label .req{color:var(--danger);margin-left:3px;}
.field input,
.field select,
.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,
.field textarea::placeholder{color:#9AABC0;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,107,223,.14);
}
.field select{appearance:none;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;}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:6px;}
.form-hint{font-size:13px;color:var(--muted);margin:0;max-width:330px;}

/* ---------- 返回入口 ---------- */
.back-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  background:linear-gradient(135deg,var(--primary-light),#fff);
  border:1px solid #D6E4FA;
  border-radius:var(--radius-card);
  padding:26px 30px;
}
.back-strip h3{margin:0 0 6px;font-size:19px;}
.back-strip p{margin:0;color:var(--muted);font-size:14.5px;}
.back-links{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--muted);max-width:330px;}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--ink);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--muted);
  align-items:flex-start;
}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.footer-bottom p{font-size:13.5px;color:var(--muted);margin:0;}
.footer-tags{display:flex;gap:18px;flex-wrap:wrap;}
.footer-tags a{font-size:13.5px;color:var(--muted);}
.footer-tags a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px;padding:56px 0 60px;}
  .contact-grid{gap:40px;}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:30px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{grid-template-columns:auto 1fr auto;min-height:66px;}
  .brand{justify-self:center;font-size:18px;}
  .mobile-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:10px 15px;
    font-size:14px;
    font-weight:600;
    color:#fff;
    background:var(--primary);
    border-radius:10px;
    box-shadow:0 6px 16px rgba(47,107,223,.24);
  }
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:44px 0 52px;}
  .hero-sub{max-width:none;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-float{left:16px;bottom:16px;}
  .case-row{grid-template-columns:1fr;gap:24px;padding:20px;}
  .case-row:nth-child(even) .case-media{order:0;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .container{padding:0 18px;}
  .section-head{margin-bottom:32px;}
  .hero-metrics{grid-template-columns:1fr;gap:10px;max-width:none;}
  .metric{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 16px;}
  .metric strong{font-size:20px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;}
  .case-list{gap:24px;}
  .pick-item{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .pick-item .btn-ghost{grid-column:1 / -1;justify-self:start;padding-left:0;}
  .pick-num{width:42px;height:42px;font-size:15px;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:20px;}
  .form-actions{flex-direction:column;align-items:stretch;}
  .form-actions .btn{width:100%;}
  .compare-foot{padding:18px;flex-direction:column;align-items:flex-start;}
  .compare-actions{width:100%;}
  .compare-actions .btn{flex:1 1 auto;}
  .back-strip{padding:22px;flex-direction:column;align-items:flex-start;}
  .back-links{width:100%;}
  .back-links .btn{flex:1 1 auto;}
  .faq-item summary{padding:18px 48px 18px 18px;font-size:15.5px;}
  .faq-answer{padding:0 18px 20px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-footer{padding:48px 0 24px;}
}
@media (max-width:479px){
  h1{font-size:30px;}
  .brand{font-size:16.5px;}
  .brand__mark{width:34px;height:34px;font-size:13px;}
  .mobile-cta{padding:9px 12px;font-size:13px;}
  .hero-tags{gap:8px;}
  .tag{font-size:12.5px;padding:5px 10px;}
}