/* roulang page: index */
:root{
  --primary:#1657A8;
  --primary-dark:#0E3F7E;
  --primary-soft:#E8F1FC;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#10203A;
  --muted:#4A5B72;
  --line:#E3E9F2;
  --white:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#1F9D6B;
  --radius-card:16px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow-sm:0 6px 20px rgba(16,32,58,.06);
  --shadow-md:0 14px 32px rgba(16,32,58,.10);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.85;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:3px solid rgba(22,87,168,.18);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-input);
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  transition:.25s ease;white-space:nowrap;border:1px solid transparent;
}
.btn-main{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(22,87,168,.22);}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,87,168,.28);}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(22,87,168,.38);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.6;filter:saturate(60%);cursor:not-allowed;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
.link-arrow::after{content:"→";transition:transform .25s ease;}
.link-arrow:hover::after{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark);
}
.tag-accent{background:var(--accent-soft);color:#C4531A;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section{padding:88px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px;}
.section-soft{background:var(--bg-soft);}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.head-row .link-arrow{white-space:nowrap;padding-bottom:6px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;height:76px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(16,32,58,.06);
  box-shadow:0 4px 24px rgba(16,32,58,.06);
  transition:height .3s ease,background-color .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{height:64px;background:rgba(255,255,255,.96);box-shadow:0 6px 24px rgba(16,32,58,.09);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(22,87,168,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:block;padding:9px 14px;font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform .28s ease;
}
.main-nav a:hover{color:var(--primary);background:rgba(232,241,252,.6);}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--primary);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.7);transition:.25s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.7);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.search-panel{
  position:fixed;top:76px;left:0;right:0;z-index:1020;background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(16,32,58,.08);
  padding:20px 0;display:none;
}
.search-panel.is-open{display:block;}
.search-row{display:flex;gap:12px;align-items:center;}
.search-row input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:0 16px;background:var(--bg-soft);transition:.25s ease;
}
.search-row input:focus{background:#fff;border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(22,87,168,.12);}
.search-hint{margin-top:12px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.search-hint a{font-size:13px;padding:4px 12px;border-radius:var(--radius-pill);background:var(--primary-soft);color:var(--primary-dark);}
.search-hint a:hover{background:var(--primary);color:#fff;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:158px 0 92px;min-height:640px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(247,250,254,.92) 44%,rgba(232,241,252,.72) 100%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-brandline{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--primary-dark);background:var(--primary-soft);border-radius:var(--radius-pill);padding:6px 16px;margin-bottom:20px;}
.hero-brandline .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.18);}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:18px;line-height:1.75;color:var(--muted);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--primary-dark);background:rgba(255,255,255,.86);
  border:1px solid var(--line);border-radius:var(--radius-pill);padding:7px 15px;
}
.hero-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}
.hero-card{
  background:#fff;border-radius:20px;padding:28px;
  box-shadow:0 22px 48px rgba(16,32,58,.12);
  border:1px solid rgba(227,233,242,.9);
}
.hero-card-top{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ok);margin-bottom:16px;}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(31,157,107,.16);}
.hero-card-title{font-size:17px;font-weight:700;margin-bottom:18px;}
.step-list li{display:flex;gap:14px;padding:13px 0;border-top:1px dashed var(--line);}
.step-list li:first-child{border-top:0;padding-top:0;}
.step-list li span.no{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.step-list strong{display:block;font-size:15px;margin-bottom:2px;}
.step-list p{font-size:13.5px;line-height:1.7;color:var(--muted);margin:0;}
.hero-card-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:14px;}
.hero-card-foot strong{display:block;font-size:20px;color:var(--primary-dark);letter-spacing:-.01em;}
.hero-card-foot span{font-size:13px;color:var(--muted);}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px 24px 30px;box-shadow:var(--shadow-sm);transition:.28s ease;
}
.pain-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:0 3px 3px 0;background:var(--primary);}
.pain-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.pain-card h3{margin-bottom:10px;}
.pain-card p{color:var(--muted);font-size:15px;margin-bottom:14px;}

/* ---------- 方案 ---------- */
.solution-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start;}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:.3s ease;}
.feature-card:hover{box-shadow:var(--shadow-md);}
.feature-media{position:relative;aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden;}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-card:hover .feature-media img{transform:scale(1.03);}
.feature-body{padding:28px;}
.feature-body h3{margin:14px 0 12px;}
.feature-body>p{color:var(--muted);font-size:15px;}
.check-list{margin:18px 0 20px;display:grid;gap:10px;}
.check-list li{position:relative;padding-left:22px;font-size:15px;color:var(--ink);}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--accent);}
.side-cards{display:grid;gap:24px;}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);transition:.28s ease;}
.mini-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.mini-icon{width:46px;height:46px;border-radius:13px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.mini-card h3{font-size:18px;margin-bottom:10px;}
.mini-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;}

/* ---------- 数据 ---------- */
.stats-panel{
  background:var(--primary-soft);border-radius:24px;padding:56px 48px;position:relative;overflow:hidden;
}
.stats-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--primary);}
.stats-head{margin-bottom:36px;max-width:640px;}
.stats-head h2{margin-bottom:10px;}
.stats-head p{color:var(--muted);font-size:15.5px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.stat-num{
  font-size:clamp(32px,4vw,52px);line-height:1;font-weight:800;color:var(--primary-dark);
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:5px;letter-spacing:-.02em;
}
.stat-num span{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:0;}
.stat p{font-size:14px;color:var(--muted);margin:12px 0 14px;}
.stat-bar{height:5px;border-radius:5px;background:rgba(22,87,168,.16);overflow:hidden;}
.stat-bar i{display:block;height:100%;border-radius:5px;background:var(--primary);}

/* ---------- 咨询表单 ---------- */
.consult-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
.consult-text h2{margin-bottom:16px;}
.consult-text>p{color:var(--muted);font-size:16px;}
.consult-points{margin-top:26px;display:grid;gap:14px;}
.consult-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink);}
.consult-points li::before{
  content:"";flex:0 0 20px;width:20px;height:20px;margin-top:4px;border-radius:6px;
  background:var(--accent-soft);
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FF7A2F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E");
  background-size:13px;background-position:center;background-repeat:no-repeat;
}
.consult-form{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow-sm);
}
.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 i{color:var(--accent);font-style:normal;margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:12px 14px;background:var(--bg-soft);transition:.25s ease;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,87,168,.12);
}
.form-foot{margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.form-note{font-size:13px;color:var(--muted);}
.form-note.is-ok{color:var(--ok);font-weight:600;}

/* ---------- 隐私说明 ---------- */
.privacy-note{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;}
.privacy-inner{display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap;justify-content:space-between;}
.check-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);}
.check-line input{width:16px;height:16px;accent-color:var(--primary);}
.privacy-inner p{font-size:13.5px;color:var(--muted);max-width:620px;}
.privacy-inner p a{text-decoration:underline;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:.3s ease;color:var(--ink);
}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);color:var(--ink);}
.news-media{aspect-ratio:16/9;background:var(--bg-soft);overflow:hidden;}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:18px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body time{font-size:13px;color:var(--muted);margin-top:auto;display:block;padding-top:6px;border-top:1px solid var(--line);}
.badge-soft{
  align-self:flex-start;display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary-dark);font-size:12.5px;font-weight:600;
}
.empty-state{
  grid-column:1 / -1;min-height:220px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--bg-soft);padding:32px;
}
.empty-state p{color:var(--muted);font-size:15px;}
.empty-icon{width:52px;height:52px;border-radius:16px;background:#fff;display:flex;align-items:center;justify-content:center;color:var(--primary);box-shadow:var(--shadow-sm);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s ease;}
.faq-item.is-open{border-color:rgba(22,87,168,.34);box-shadow:var(--shadow-sm);}
.faq-h{margin:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  position:relative;transition:.25s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);transform:scaleY(0);transition:transform .28s ease;transform-origin:center;
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:.28s ease;}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--primary-soft);border-radius:24px;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.20) 0%,rgba(255,122,47,0) 70%);
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15.5px;max-width:620px;}
.cta-band .btn{position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1B33;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);margin-top:18px;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-col li span{font-size:14px;color:rgba(255,255,255,.62);}
.qr-box{
  margin-top:16px;width:96px;height:96px;border-radius:12px;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.14) 0 8px,rgba(255,255,255,.05) 8px 16px);
  border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;
  font-size:12px;color:rgba(255,255,255,.6);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;
}
.footer-bottom p{color:rgba(255,255,255,.55);margin:0;}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 浮动与弹层 ---------- */
.float-stack{position:fixed;right:22px;bottom:24px;z-index:1040;display:flex;flex-direction:column;align-items:flex-end;gap:12px;}
.float-consult{
  display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;
  padding:13px 22px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;
  box-shadow:0 12px 26px rgba(22,87,168,.3);transition:.25s ease;
}
.float-consult:hover{background:var(--primary-dark);transform:translateY(-2px);}
.float-top{
  width:46px;height:46px;border-radius:50%;background:#fff;color:var(--primary);
  border:1px solid var(--line);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:.25s ease;
}
.float-top.is-show{opacity:1;visibility:visible;}
.float-top:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.modal-layer{position:fixed;inset:0;z-index:1050;display:none;}
.modal-layer.is-open{display:block;}
.modal-mask{position:absolute;inset:0;background:rgba(16,32,58,.45);}
.modal-box{
  position:relative;z-index:1;max-width:480px;margin:8vh auto;background:#fff;border-radius:18px;
  padding:32px;box-shadow:0 28px 60px rgba(16,32,58,.24);animation:pop .28s ease;
}
@keyframes pop{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.modal-box h3{font-size:20px;margin-bottom:8px;}
.modal-box>p{font-size:14.5px;color:var(--muted);margin-bottom:20px;}
.modal-close{position:absolute;right:16px;top:14px;width:34px;height:34px;border-radius:50%;font-size:20px;color:var(--muted);line-height:1;display:flex;align-items:center;justify-content:center;}
.modal-close:hover{background:var(--bg-soft);color:var(--primary);}
.modal-note{font-size:12.5px;color:var(--muted);margin-top:16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px;}
  .hero-inner{gap:40px;}
  .stats-grid{gap:24px;}
}
@media (max-width:991.98px){
  .container{max-width:100%;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:0 18px 34px rgba(16,32,58,.12);
    padding:12px 20px 22px;display:none;
  }
  .main-nav.is-open{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .main-nav a{padding:0 12px;height:48px;line-height:48px;font-size:16px;border-radius:10px;}
  .main-nav a::after{left:12px;right:12px;bottom:8px;}
  .nav-actions .btn-main{display:none;}
  .hero{padding:130px 0 72px;min-height:auto;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .section{padding:64px 0;}
  .pain-grid{grid-template-columns:1fr;}
  .solution-layout{grid-template-columns:1fr;}
  .side-cards{grid-template-columns:1fr 1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stats-panel{padding:40px 30px;}
  .consult-wrap{grid-template-columns:1fr;gap:36px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text strong{font-size:15px;}
  .brand-text em{display:none;}
  .hero{padding:118px 0 56px;}
  .hero-sub{font-size:16.5px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{width:100%;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .head-row{flex-direction:column;align-items:flex-start;gap:12px;}
  .side-cards{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .stats-panel{padding:32px 20px;border-radius:18px;}
  .consult-form{padding:24px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;}
  .cta-band{padding:32px 20px;border-radius:18px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-stack{right:14px;bottom:18px;}
  .float-consult{padding:11px 18px;font-size:14px;}
  .modal-box{margin:auto;position:absolute;left:12px;right:12px;bottom:12px;top:auto;border-radius:18px;padding:26px 20px;}
}

/* roulang page: category1 */
:root{
  --brand:#1657A8;
  --brand-dark:#0E3F7E;
  --brand-soft:#E8F1FC;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#10203A;
  --muted:#4A5B72;
  --line:#E3E9F2;
  --bg:#FFFFFF;
  --surface:#F5F8FC;
  --ok:#1F9D6B;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --r-modal:18px;
  --sh:0 6px 20px rgba(16,32,58,.06);
  --sh-hover:0 14px 32px rgba(16,32,58,.10);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0 0 12px;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{margin:0 0 14px;}
ul,ol{margin:0 0 14px;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,87,168,.18);border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 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);border:1px solid transparent;cursor:pointer;
  text-decoration:none;transition:all .25s ease;white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(22,87,168,.22);}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,87,168,.30);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(22,87,168,.38);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.6;filter:saturate(60%);cursor:not-allowed;}

.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.link-more span{transition:transform .25s ease;}
.link-more:hover span{transform:translateX(4px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.55);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(16,32,58,.06);
  box-shadow:0 4px 24px rgba(16,32,58,.06);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{background:rgba(255,255,255,.96);box-shadow:0 8px 28px rgba(16,32,58,.10);}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px;transition:height .3s ease;}
.site-header.is-stuck .nav-inner{height:64px;}

.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(22,87,168,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.06em;}

.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:28px;margin:0;}
.main-nav a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink);}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--brand);
  transition:left .25s ease,right .25s ease;
}
.main-nav a:hover::after,.main-nav a.is-active::after{left:0;right:0;}
.main-nav a.is-active{color:var(--brand);font-weight:600;}
.main-nav a:hover{color:var(--brand);}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s ease;}

.search-panel{
  position:absolute;top:100%;left:0;right:0;display:none;
  background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);
  box-shadow:0 12px 28px rgba(16,32,58,.08);padding:16px 0;
}
.search-panel.is-open{display:block;}
.search-panel form{display:flex;gap:10px;}
.search-panel input{
  flex:1;height:46px;border-radius:var(--r-btn);border:1px solid var(--line);padding:0 16px;font-size:15px;color:var(--ink);
}
.search-panel input:focus{border-color:var(--brand);}

/* ============ 内页小首屏 ============ */
.page-hero{
  position:relative;
  padding:126px 0 52px;
  background:#F5F8FC url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 52%,rgba(232,241,252,.92) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:#B9C4D4;}
.crumb .current{color:var(--brand);font-weight:600;}
.page-hero h1{margin-bottom:12px;}
.page-hero .lead{font-size:17px;color:var(--muted);max-width:720px;margin:0;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-surface{background:var(--surface);}
.section-title{margin-bottom:36px;max-width:760px;}
.section-title .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.12em;
  background:var(--brand-soft);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.section-title p{color:var(--muted);margin:0;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-num{
  font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.1;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--brand);}
.stat-desc{font-size:14px;color:var(--muted);margin:6px 0 0;}

/* ============ 交替图文行 ============ */
.alt-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center;}
.alt-row.is-reverse .alt-media{order:2;}
.alt-row.is-reverse .alt-body{order:1;}
.alt-media{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);background:var(--surface);
  aspect-ratio:4/3;
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.alt-media:hover img{transform:scale(1.03);}
.tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;
}
.tag.is-accent{color:#C24E0C;background:var(--accent-soft);}
.alt-body p{color:var(--muted);}
.tick-list{margin:16px 0 20px;}
.tick-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--ink);font-size:15px;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.65em;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.rule{border:0;border-top:1px solid var(--line);margin:64px 0;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease;height:100%;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);}
.step-index{
  width:36px;height:36px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);margin:0;}

/* ============ 相关链接区 ============ */
.num-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.num-link{
  position:relative;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 22px;box-shadow:var(--sh);transition:all .25s ease;height:100%;
}
.num-link:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(22,87,168,.35);}
.num-link .num{
  display:block;font-size:30px;font-weight:800;line-height:1;color:var(--brand-soft);
  letter-spacing:-.03em;margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.num-link h3{font-size:17px;margin-bottom:6px;color:var(--ink);}
.num-link p{font-size:14px;color:var(--muted);margin:0;}
.num-link:hover h3{color:var(--brand);}

/* ============ 引用块 ============ */
.quote-box{
  background:var(--brand-soft);border-left:3px solid var(--brand);border-radius:12px;
  padding:20px 24px;margin:0 0 24px;
}
.quote-box p{margin:0;font-size:15px;color:var(--brand-dark);}

/* ============ 底部 CTA 条 ============ */
.cta-band{background:var(--brand-soft);padding:64px 0;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{margin-bottom:8px;font-size:clamp(22px,2.6vw,30px);}
.cta-inner p{margin:0;color:var(--muted);max-width:640px;}

/* ============ 浮动组件 ============ */
.float-stack{position:fixed;right:22px;bottom:26px;z-index:1040;display:flex;flex-direction:column;gap:12px;}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;border:none;font-size:14px;font-weight:600;cursor:pointer;
  box-shadow:0 10px 26px rgba(22,87,168,.30);transition:transform .22s ease,background .22s ease;
}
.float-btn:hover{background:var(--brand-dark);transform:translateY(-2px);color:#fff;}
.float-btn.is-ghost{width:48px;height:48px;padding:0;justify-content:center;background:#fff;color:var(--brand);border:1px solid var(--line);box-shadow:var(--sh);}
.float-btn.is-ghost:hover{background:var(--brand-soft);}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:1080;background:rgba(16,32,58,.45);
  display:none;align-items:center;justify-content:center;padding:20px;
}
.modal-mask.is-open{display:flex;}
.modal-card{
  position:relative;width:100%;max-width:480px;background:#fff;border-radius:var(--r-modal);
  padding:28px;box-shadow:0 24px 60px rgba(16,32,58,.24);max-height:90vh;overflow:auto;
}
.modal-card h3{margin-bottom:6px;}
.modal-card .modal-sub{font-size:14px;color:var(--muted);margin-bottom:18px;}
.modal-close{
  position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--muted);cursor:pointer;font-size:16px;line-height:1;
}
.modal-close:hover{color:var(--brand);border-color:var(--brand);}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;}
.field label .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);padding:11px 14px;
  font-size:15px;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,168,.14);outline:none;
}
.form-note{font-size:13px;color:var(--muted);margin:10px 0 0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand p{font-size:14px;color:var(--muted);margin:16px 0 0;max-width:300px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;}
.qr-box{
  margin-top:14px;width:104px;height:104px;border:1px dashed #C6D3E6;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted);background:#fff;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0;}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .alt-row{gap:36px;}
  .num-links{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;margin:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:0 16px 30px rgba(16,32,58,.12);
    padding:8px 24px 22px;display:none;
  }
  .main-nav.is-open{display:block;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav a{line-height:48px;font-size:16px;border-bottom:1px solid var(--line);display:block;}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--brand);}
  .site-header .btn-main.btn-sm{display:none;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .alt-row{grid-template-columns:1fr;gap:24px;}
  .alt-row.is-reverse .alt-media{order:1;}
  .alt-row.is-reverse .alt-body{order:2;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:1fr;border-radius:var(--r-card);}
  .stat-item{border-right:none;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:none;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  .page-hero{padding:112px 0 40px;}
  .page-hero .lead{font-size:15.5px;}
  .brand-text em{display:none;}
  .steps{grid-template-columns:1fr;}
  .num-links{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .section-sm{padding:40px 0;}
  .alt-media{aspect-ratio:16/10;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-stack{right:14px;bottom:16px;}
  .float-btn span{display:none;}
  .float-btn{padding:0 16px;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal-card{border-radius:18px 18px 0 0;max-height:88vh;}
}

/* roulang page: article */
:root{
  --primary:#1657A8;
  --primary-dark:#0E3F7E;
  --primary-soft:#E8F1FC;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#10203A;
  --muted:#4A5B72;
  --line:#E3E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --success:#1F9D6B;
  --radius-card:16px;
  --radius-input:10px;
  --radius-pill:999px;
  --radius-pop:18px;
  --shadow:0 6px 20px rgba(16,32,58,.06);
  --shadow-hover:0 14px 32px rgba(16,32,58,.10);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:3px solid rgba(22,87,168,.35);outline-offset:2px;border-radius:6px}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:76px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(16,32,58,.06);
  box-shadow:0 4px 24px rgba(16,32,58,.06);
  transition:height .3s ease, background .3s ease, box-shadow .3s ease;
}
.site-header.is-stuck{
  height:64px;
  background:rgba(255,255,255,.96);
  box-shadow:0 8px 26px rgba(16,32,58,.10);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  box-shadow:0 6px 16px rgba(22,87,168,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:-.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.06em}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--ink);
  border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;transition:left .25s ease,right .25s ease;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after,.main-nav a.is-active::after{left:12px;right:12px}
.main-nav a.is-active{color:var(--primary);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  color:var(--muted);border:1px solid var(--line);background:#fff;transition:.2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,87,168,.35);box-shadow:var(--shadow)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:var(--radius-input);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-main{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(22,87,168,.24)}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,87,168,.30)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid rgba(22,87,168,.45)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary)}
.btn-line{background:transparent;color:var(--primary);border:1px solid var(--line);padding:9px 18px;font-size:14px}
.btn-line:hover{border-color:var(--primary);background:var(--primary-soft)}
.btn-block{width:100%}
.btn-lg{padding:14px 26px;font-size:16px}
.btn:disabled,.btn.is-disabled{opacity:.6;filter:saturate(.6);pointer-events:none}
.text-link{font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.text-link svg{transition:transform .2s ease}
.text-link:hover svg{transform:translateX(4px)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;background:var(--ink);border-radius:2px;transition:.25s ease}
.search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 28px rgba(16,32,58,.08);
  padding:16px 0;
  display:none;
}
.search-panel.is-open{display:block}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1;height:44px;border-radius:var(--radius-input);border:1px solid var(--line);
  padding:0 14px;color:var(--ink);background:var(--bg-soft);
}
.search-form input:focus{outline:none;border-color:var(--primary);background:#fff}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:14px 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary);text-decoration:underline}
.crumb .sep{color:#B9C4D4}
.crumb .now{color:var(--primary);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- post hero ---------- */
.post-hero{
  position:relative;
  padding:128px 0 48px;
  background-color:#EFF4FB;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
}
.post-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(245,248,252,.96) 62%,#FFFFFF 100%);
}
.post-hero .container{position:relative;z-index:2}
.post-tagline{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(22,87,168,.14);
}
.chip-accent{color:#B24A0C;background:var(--accent-soft);border-color:rgba(255,122,47,.22)}
.post-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.25;
  font-weight:700;
  max-width:900px;
  margin-bottom:18px;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--muted)}
.post-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.post-meta .meta-item + .meta-item{padding-left:18px;border-left:1px solid var(--line)}
.post-meta a{color:var(--primary);font-weight:600}
.hero-figure{
  margin-top:34px;border-radius:var(--radius-card);overflow:hidden;
  background:var(--bg-soft);box-shadow:var(--shadow);aspect-ratio:21/9;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- layout ---------- */
.page-main{padding:56px 0 72px}
.layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-shell{max-width:820px}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:#1B2C48}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;
  margin:2.2em 0 .9em;
  padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.5;margin:1.8em 0 .7em}
.article-body h4{font-size:17px;font-weight:600;margin:1.5em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.85}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.18em;
  width:18px;height:18px;border-radius:6px;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--primary);
  background:var(--primary-soft);border-radius:0 var(--radius-input) var(--radius-input) 0;
  color:#22375A;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.6em 0;box-shadow:var(--shadow)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--primary-soft);font-weight:600;color:var(--primary-dark)}
.article-body tr:nth-child(even) td{background:#FAFCFF}
.article-body code{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--primary-dark);
}
.article-body pre{
  background:#F5F8FC;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body strong{font-weight:700;color:var(--primary-dark)}
.article-body h2 + p,.article-body h3 + p{margin-top:.2em}

.notice-box{
  margin-top:40px;padding:22px 24px;border-radius:var(--radius-card);
  background:var(--accent-soft);border:1px solid rgba(255,122,47,.24);
}
.notice-box h3{font-size:16px;margin-bottom:8px;color:#B24A0C}
.notice-box p{margin:0;font-size:14px;color:#7A4620;line-height:1.8}
.empty-state{
  padding:56px 24px;text-align:center;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--bg-soft);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:20px}

.post-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.post-foot .tags{display:flex;flex-wrap:wrap;gap:8px}
.post-foot .btns{display:flex;flex-wrap:wrap;gap:10px}

.comment-slot{
  margin-top:32px;padding:20px 22px;border:1px solid var(--line);
  border-radius:var(--radius-card);background:#fff;
}
.comment-slot h3{font-size:15px;color:var(--muted);font-weight:600;margin-bottom:6px}
.comment-slot p{font-size:14px;color:var(--muted);margin:0}

/* ---------- related ---------- */
.related-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:clamp(22px,2.6vw,28px)}
.section-head p{font-size:14px;color:var(--muted);margin:6px 0 0}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.mini-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease, box-shadow .25s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.mini-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.mini-card:hover .thumb img{transform:scale(1.04)}
.mini-card .body{padding:16px 18px}
.mini-card h3{font-size:16px;line-height:1.5;margin-bottom:8px;color:var(--ink)}
.mini-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 10px}
.mini-card .meta{font-size:12px;color:var(--muted)}

/* ---------- sidebar ---------- */
.side-col{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-card .side-desc{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 14px}
.side-list li + li{border-top:1px solid var(--line)}
.side-list a{display:block;padding:12px 0;font-size:14px;color:var(--ink);line-height:1.6}
.side-list a:hover{color:var(--primary)}
.side-list .side-time{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.side-form .field{margin-bottom:12px}
.side-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.side-form input,.side-form select,.side-form textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:10px 12px;font-size:14px;color:var(--ink);background:var(--bg-soft);
  transition:border-color .2s ease, background .2s ease;
}
.side-form input:focus,.side-form select:focus,.side-form textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;
}
.form-tip{font-size:12px;color:var(--muted);margin-top:10px}
.form-tip a{text-decoration:underline}
.form-ok{
  display:none;margin-top:12px;padding:10px 12px;border-radius:10px;
  background:#E9F7F1;color:#12684A;font-size:13px;border:1px solid rgba(31,157,107,.25);
}
.form-ok.is-show{display:block}

/* ---------- CTA band ---------- */
.cta-band{padding:56px 0 72px}
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#E8F1FC 0%,#F5F8FC 100%);
  border:1px solid rgba(22,87,168,.14);
  border-radius:24px;
  padding:44px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.cta-panel p{color:var(--muted);font-size:15px;margin:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:#0E1C31;color:#C6D2E4;padding:64px 0 0;margin-top:0}
.site-footer a{color:#C6D2E4}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#8FA3BF}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB0C8;margin:0;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:#A9B9D0}
.qr-box{
  margin-top:14px;width:104px;height:104px;border-radius:12px;
  display:grid;place-items:center;font-size:12px;color:#0E1C31;
  background:repeating-linear-gradient(45deg,#E8F1FC,#E8F1FC 6px,#D6E5F8 6px,#D6E5F8 12px);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA3BF;
}
.footer-bottom p{margin:0}

/* ---------- floating ---------- */
.float-stack{position:fixed;right:22px;bottom:24px;z-index:900;display:grid;gap:12px;justify-items:end}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:#fff;background:var(--primary);
  box-shadow:0 10px 26px rgba(22,87,168,.30);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.float-btn:hover{transform:translateY(-2px);background:var(--primary-dark);color:#fff;box-shadow:0 16px 32px rgba(22,87,168,.34)}
.float-btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--line);box-shadow:var(--shadow)}
.float-btn.ghost:hover{background:var(--primary-soft);color:var(--primary-dark)}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:1200;display:none;
  background:rgba(16,32,58,.45);
  align-items:center;justify-content:center;padding:24px;
}
.modal-mask.is-open{display:flex}
.modal-card{
  width:100%;max-width:480px;background:#fff;border-radius:var(--radius-pop);
  padding:28px;box-shadow:0 24px 60px rgba(16,32,58,.22);
  max-height:90vh;overflow:auto;
}
.modal-card h2{font-size:20px;margin-bottom:8px}
.modal-card .modal-sub{font-size:14px;color:var(--muted);margin-bottom:18px}
.modal-close{
  position:absolute;top:18px;right:18px;width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;color:var(--muted);background:var(--bg-soft);
}
.modal-wrap{position:relative;width:100%;max-width:480px}
.modal-wrap .modal-close{top:-6px;right:-6px;background:#fff;box-shadow:var(--shadow)}
.field-row{margin-bottom:14px}
.field-row label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field-row input,.field-row select,.field-row textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:11px 13px;font-size:15px;background:var(--bg-soft);color:var(--ink);
}
.field-row input:focus,.field-row select:focus,.field-row textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;
}
.privacy-line{font-size:13px;color:var(--muted);background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--radius-input);padding:12px 14px;margin-top:14px;line-height:1.7}
.privacy-line a{text-decoration:underline}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .layout-grid{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;top:76px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(16,32,58,.12);
    padding:10px 16px 18px;
    display:none;
  }
  .site-header.is-stuck .main-nav{top:64px}
  .site-header.nav-open .main-nav{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{padding:0 6px;line-height:48px;border-radius:10px;font-size:15px}
  .main-nav a::after{display:none}
  .main-nav a.is-active{background:var(--primary-soft)}
  .nav-actions .btn-main{display:none}
  .layout-grid{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-hero{padding-top:112px}
  .hero-figure{aspect-ratio:16/9}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text strong{font-size:15px}
  .brand-text em{font-size:11px}
  .crumb .now{max-width:180px}
  .post-hero{padding:100px 0 36px}
  .post-meta{gap:8px 12px}
  .post-meta .meta-item + .meta-item{padding-left:12px}
  .page-main{padding:40px 0 56px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-panel{padding:28px 22px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;padding-bottom:32px}
  .float-stack{right:14px;bottom:16px}
  .float-btn{padding:10px 16px;font-size:13px}
  .modal-mask{padding:0;align-items:flex-end}
  .modal-card{border-radius:18px 18px 0 0;max-width:100%;max-height:88vh}
  .modal-wrap .modal-close{top:12px;right:16px;z-index:2}
  .article-body{font-size:16px}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .search-form{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#1657A8;
  --brand-dark:#0E3F7E;
  --brand-soft:#E8F1FC;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#10203A;
  --ink-2:#4A5B72;
  --line:#E3E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#1F9D6B;
  --r-card:16px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(16,32,58,.06);
  --sh-2:0 14px 32px rgba(16,32,58,.10);
  --nav-h:76px;
  --nav-h-stuck:64px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px;color:var(--ink);line-height:1.3;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(22,87,168,.28);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px !important;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:1030;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(16,32,58,.06);
  box-shadow:0 4px 24px rgba(16,32,58,.06);
  transition:background-color .3s ease,box-shadow .3s ease,height .3s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.96);
  box-shadow:0 10px 30px rgba(16,32,58,.10);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--nav-h);
  transition:height .3s ease;
}
.site-header.is-stuck .nav-inner{height:var(--nav-h-stuck);}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(22,87,168,.28);
  flex-shrink:0;
}
.brand-text strong{
  display:block;font-size:16px;font-weight:700;color:var(--ink);
  line-height:1.25;letter-spacing:-.4px;white-space:nowrap;
}
.brand-text em{
  display:block;font-style:normal;font-size:12px;color:var(--ink-2);
  letter-spacing:.5px;line-height:1.4;white-space:nowrap;
}

.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a{
  position:relative;
  display:block;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:8px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
  transition:left .28s ease,right .28s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{left:14px;right:14px;}
.main-nav a.is-active{color:var(--brand);font-weight:600;}
.main-nav a.is-active::after{left:14px;right:14px;}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-input);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:.25s ease;cursor:pointer;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-input);padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-cta-mobile{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-input);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(22,87,168,.22);}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,87,168,.3);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(22,87,168,.38);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.6;filter:saturate(.6);cursor:not-allowed;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-weight:600;font-size:14.5px;
}
.link-arrow i{transition:transform .25s ease;font-size:12px;}
.link-arrow:hover{color:var(--brand-dark);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:130px 0 52px;
  background-image:
    linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 42%,rgba(245,248,252,.78) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-min{min-height:190px;display:flex;flex-direction:column;justify-content:center;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);margin-bottom:14px;
}
.crumb a:hover{color:var(--brand);text-decoration:underline;}
.crumb .sep{color:#B9C5D6;}
.crumb .current{color:var(--brand);font-weight:600;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.25;
  margin-bottom:14px;
  max-width:840px;
}
.page-hero .hero-sub{
  font-size:17px;color:var(--ink-2);max-width:700px;margin:0;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);
}
.tag i{color:var(--brand);font-size:11px;}
.tag-accent{background:var(--accent-soft);border-color:#FFD9BF;color:#B04E12;}
.tag-accent i{color:var(--accent);}

/* ---------- section base ---------- */
.section{padding:76px 0;}
.section-soft{background:var(--bg-soft);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--brand);margin-bottom:10px;
}
.section-head h2{font-size:clamp(23px,2.9vw,32px);margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ---------- two column layout ---------- */
.two-col{
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:52px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:96px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 16px;
  box-shadow:var(--sh-1);
}
.anchor-nav h2{
  font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--ink-2);
  padding:0 6px;margin-bottom:12px;
}
.anchor-nav ul{display:flex;flex-direction:column;gap:2px;}
.anchor-nav a{
  display:flex;align-items:center;gap:8px;
  padding:10px 12px;font-size:14px;color:var(--ink-2);
  border-radius:10px;border-left:3px solid transparent;
  transition:.25s ease;
}
.anchor-nav a i{font-size:6px;color:#B9C5D6;transition:.25s ease;}
.anchor-nav a:hover{background:var(--bg-soft);color:var(--brand);}
.anchor-nav a:hover i{color:var(--brand);}
.anchor-nav a.is-current{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;border-left-color:var(--brand);}
.anchor-nav a.is-current i{color:var(--brand);}
.anchor-nav .nav-help{
  margin-top:16px;padding:14px;border-radius:12px;background:var(--bg-soft);
  font-size:13px;color:var(--ink-2);line-height:1.7;
}
.anchor-nav .nav-help strong{display:block;color:var(--ink);font-size:13.5px;margin-bottom:4px;}

.doc-col{min-width:0;}
.doc-block{margin-bottom:52px;scroll-margin-top:112px;}
.doc-block:last-child{margin-bottom:0;}
.doc-block h2{
  position:relative;padding-left:16px;
  font-size:clamp(21px,2.3vw,27px);margin-bottom:14px;
}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  border-radius:4px;background:var(--brand);
}
.doc-block h3{font-size:17px;margin:24px 0 8px;}
.doc-block p{color:var(--ink-2);font-size:15.5px;}
.lead{color:var(--ink) !important;font-size:16.5px !important;}

.check-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 22px;margin:18px 0 0;
}
.check-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;
  border-radius:2px;background:var(--brand);
}

.steps{display:flex;flex-direction:column;gap:14px;margin-top:20px;}
.steps li{
  position:relative;padding:18px 22px 18px 62px;
  background:var(--bg-soft);border:1px solid var(--line);
  border-radius:14px;margin:0;
}
.steps li::before{
  counter-increment:step;
  content:counter(step);
  position:absolute;left:20px;top:19px;
  width:26px;height:26px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.steps{counter-reset:step;}
.steps h3{margin:0 0 4px;font-size:16.5px;color:var(--ink);}
.steps p{font-size:14.8px;color:var(--ink-2);margin:0;}

.note{
  margin-top:20px;padding:16px 20px;
  background:var(--accent-soft);
  border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;
  font-size:14.8px;color:var(--ink-2);
}
.note strong{color:var(--ink);}

.wide-shot{
  margin:26px 0 0;border-radius:18px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--bg-soft);
}
.wide-shot img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.shot-caption{
  padding:12px 18px;font-size:13.5px;color:var(--ink-2);
  background:#fff;border-top:1px solid var(--line);
}

.data-strip{
  position:relative;margin-top:22px;padding:30px 28px;
  background:var(--brand-soft);border-radius:18px;overflow:hidden;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.data-strip::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);
}
.data-item .num{
  font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1;
  color:var(--brand-dark);font-variant-numeric:tabular-nums;letter-spacing:-1px;
  display:flex;align-items:baseline;gap:4px;
}
.data-item .num small{font-size:14px;font-weight:600;letter-spacing:0;color:var(--brand);}
.data-item p{margin:10px 0 0;font-size:13.8px;color:var(--ink-2);line-height:1.6;}
.data-bar{height:3px;border-radius:3px;background:rgba(22,87,168,.18);margin-top:12px;overflow:hidden;}
.data-bar span{display:block;height:100%;background:var(--brand);border-radius:3px;}

.issue-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px;}
.issue-card{
  position:relative;padding:20px 20px 20px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  transition:.28s ease;
}
.issue-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.issue-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.issue-card h3{font-size:16px;margin:0 0 6px;}
.issue-card p{font-size:14.5px;color:var(--ink-2);margin:0;}

.related-band{
  border-top:1px solid var(--line);
  padding-top:34px;
  margin-top:8px;
}
.related-band h2{font-size:20px;margin-bottom:6px;}
.related-band p{color:var(--ink-2);font-size:14.5px;margin:0;}
.tag-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;}
.tag-links a{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  font-size:14.5px;color:var(--ink);
  transition:.28s ease;
}
.tag-links a i{font-size:12px;color:var(--brand);transition:transform .28s ease;}
.tag-links a:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.tag-links a:hover i{transform:translateX(3px);}

/* ---------- consult ---------- */
.consult-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;align-items:start;
}
.consult-intro h2{font-size:clamp(23px,2.9vw,32px);margin-bottom:14px;}
.consult-intro p{color:var(--ink-2);font-size:15.6px;}
.consult-points{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.consult-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.consult-points i{
  width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0;margin-top:3px;
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:28px;box-shadow:var(--sh-1);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-tip{font-size:13.5px;color:var(--ink-2);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.field .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;font-size:15px;font-family:inherit;
  color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-input);
  transition:.25s ease;
}
.field textarea{resize:vertical;min-height:104px;}
.field input::placeholder,.field textarea::placeholder{color:#A5B2C4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,168,.18);
}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);margin:6px 0 18px;}
.agree input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand);flex-shrink:0;}
.agree a{color:var(--brand);text-decoration:underline;}
.form-status{margin-top:14px;font-size:14px;color:var(--ok);display:none;}
.form-status.is-show{display:block;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-soft);border-radius:24px;
  padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(22,87,168,.08);
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);color:var(--brand-dark);margin-bottom:8px;position:relative;}
.cta-band p{color:var(--ink-2);font-size:15.4px;margin:0;position:relative;max-width:620px;}
.cta-band .btn{position:relative;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{
  background:#fff;border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:8px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-2);margin:0;max-width:290px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:var(--ink-2);}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;}
.qr-box{
  margin-top:16px;width:104px;height:104px;border-radius:12px;
  border:1px dashed #C6D3E4;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink-2);
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--ink-2);
}
.footer-bottom a{color:var(--ink-2);}
.footer-bottom a:hover{color:var(--brand);text-decoration:underline;}

/* ---------- floating ---------- */
.float-actions{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
}
.float-consult{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 12px 26px rgba(22,87,168,.32);
  transition:.25s ease;
}
.float-consult:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.float-top{
  width:44px;height:44px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);transition:.25s ease;
}
.float-top:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:960px !important;}
  .two-col{grid-template-columns:230px minmax(0,1fr);gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:991px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:var(--nav-h);left:0;right:0;
    margin:0;padding:10px 16px 22px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(16,32,58,.12);
    max-height:calc(100vh - var(--nav-h));overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-14px);
    transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
  }
  .site-header.is-stuck .main-nav{top:var(--nav-h-stuck);}
  .main-nav.is-open{opacity:1;visibility:visible;transform:none;}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav a{
    padding:15px 12px;font-size:16px;border-radius:0;
    border-bottom:1px solid #F0F4FA;
  }
  .main-nav a::after{display:none;}
  .main-nav a.is-active{background:var(--brand-soft);border-radius:10px;}
  .nav-cta-mobile{display:inline-flex;margin-top:16px;}
  .nav-actions .btn-main{display:none;}
  .two-col{grid-template-columns:minmax(0,1fr);gap:32px;}
  .anchor-nav{position:static;}
  .anchor-nav ul{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .anchor-nav a{border-left:none;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 14px;}
  .anchor-nav a.is-current{border-color:var(--brand);}
  .anchor-nav .nav-help{display:none;}
  .consult-wrap{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 2;}
  .section{padding:60px 0;}
  .page-hero{padding:118px 0 44px;}
}
@media (max-width:767px){
  .section{padding:52px 0;}
  .page-hero{padding:110px 0 40px;}
  .page-hero .hero-min{min-height:0;}
  .data-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:26px 22px;}
  .issue-grid{grid-template-columns:minmax(0,1fr);}
  .check-list{grid-template-columns:minmax(0,1fr);}
  .form-card{padding:22px;}
  .cta-band{padding:32px 24px;border-radius:20px;}
  .cta-band .btn{width:100%;}
  .float-actions{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:14.6px;}
  .data-strip{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-col:last-child{grid-column:span 1;}
  .steps li{padding:16px 18px 16px 56px;}
  .wide-shot img{aspect-ratio:16/9;}
}

/* roulang page: category3 */
:root{
  --brand:#1657A8;
  --brand-dark:#0E3F7E;
  --brand-soft:#E8F1FC;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --ink:#10203A;
  --muted:#4A5B72;
  --line:#E3E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --ok:#1F9D6B;
  --radius-card:16px;
  --radius-input:10px;
  --radius-pill:999px;
  --shadow:0 6px 20px rgba(16,32,58,.06);
  --shadow-lg:0 14px 32px rgba(16,32,58,.10);
  --sp-block:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5,h6{margin:0 0 .55em;font-weight:700;letter-spacing:-.01em;line-height:1.3;color:var(--ink);}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(22,87,168,.28);outline-offset:2px;}

.container{max-width:1200px;width:100%;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-input);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;white-space:nowrap;
  text-decoration:none;transition:all .25s ease;
}
.btn-main{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(22,87,168,.22);}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(22,87,168,.28);}
.btn-ghost{background:#fff;border-color:rgba(22,87,168,.35);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.6;filter:saturate(60%);cursor:not-allowed;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);}
.link-arrow svg{transition:transform .25s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:76px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(16,32,58,.06);
  box-shadow:0 4px 24px rgba(16,32,58,.06);
  transition:height .3s ease,background .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{height:64px;background:rgba(255,255,255,.96);box-shadow:0 6px 22px rgba(16,32,58,.10);}
.nav-inner{display:flex;align-items:center;gap:28px;height:100%;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(22,87,168,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.main-nav{margin-left:auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;
  color:var(--ink);font-weight:500;border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;
  transition:transform .28s ease;
}
.main-nav a:hover{color:var(--brand);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--brand);font-weight:600;}
.main-nav a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-pill);border:1px solid var(--line);
  background:#fff;color:var(--muted);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .22s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(22,87,168,.4);background:var(--brand-soft);}
.nav-toggle{
  display:none;width:40px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0 10px;flex-direction:column;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:.25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 小 Hero ============ */
.page-hero{
  position:relative;padding:120px 0 46px;
  background:
    linear-gradient(180deg,rgba(255,255,255,.93),rgba(255,255,255,.88)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3CCD9;}
.crumb .current{color:var(--brand);font-weight:600;}
.hero-line{font-size:17px;color:var(--muted);max-width:760px;margin:0;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 15px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark);
}
.pill.accent{background:var(--accent-soft);color:#B8480E;}
.pill.line{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500;}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-block) 0;}
.section.soft{background:var(--bg-soft);}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);margin-bottom:10px;
}
.section-head p{color:var(--muted);margin:0;}

/* ============ 概览图文 ============ */
.overview{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.overview-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-lg);}
.overview-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list{margin-top:22px;display:grid;gap:14px;}
.check-list li{position:relative;padding-left:26px;color:var(--muted);font-size:15.5px;}
.check-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:10px;height:10px;border-radius:3px;
  background:var(--brand);transform:rotate(45deg);
}
.check-list li strong{color:var(--ink);font-weight:600;}

/* ============ 非等宽卡片网格 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.scene-card{
  grid-column:span 3;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D3E1F4;}
.scene-card h3{margin:14px 0 8px;font-size:18px;}
.scene-card p{color:var(--muted);font-size:14.5px;margin-bottom:16px;}
.scene-card .link-arrow{margin-top:auto;}
.scene-card.lg{
  grid-column:span 6;padding:0;overflow:hidden;
}
.scene-card.lg .media{position:relative;overflow:hidden;}
.scene-card.lg .media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.scene-card.lg:hover .media img{transform:scale(1.03);}
.scene-card.lg .body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.scene-card.lg h3{font-size:22px;margin:0 0 10px;}
.scene-card.lg p{font-size:15.5px;}
.mini-list{margin:6px 0 18px;display:grid;gap:10px;}
.mini-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);}
.mini-list li::before{
  content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:2px;
  background:var(--accent);transform:rotate(45deg);
}
.scene-tag{
  align-self:flex-start;display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;background:var(--brand-soft);color:var(--brand-dark);
}

/* ============ 数据条 ============ */
.metrics{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px 28px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.metrics::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.metric{text-align:left;}
.metric .num{
  font-size:clamp(30px,3.6vw,44px);font-weight:800;line-height:1;
  color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric .num small{font-size:.42em;font-weight:700;margin-left:6px;color:var(--muted);letter-spacing:0;}
.metric .label{font-size:14px;color:var(--muted);margin-top:10px;}
.metric .bar{height:6px;border-radius:999px;background:var(--brand-soft);margin-top:14px;overflow:hidden;}
.metric .bar i{display:block;height:100%;border-radius:999px;background:var(--brand);}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
  box-shadow:var(--shadow);transition:transform .28s ease,box-shadow .28s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.step .no{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:12px;background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:16px;
}
.step h3{margin:16px 0 8px;font-size:17.5px;}
.step p{color:var(--muted);font-size:14.5px;margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#D3E1F4;box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 56px 18px 20px;border-left:3px solid transparent;
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary h3{margin:0;font-size:16.5px;font-weight:600;display:inline;}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;background:var(--bg-soft);color:var(--brand);
  font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;
  transition:background .25s ease,color .25s ease;
}
.faq-item[open] summary{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);}
.faq-item[open] summary h3{color:var(--brand);}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff;}
.faq-body{padding:6px 24px 22px 23px;color:var(--muted);font-size:15px;border-left:3px solid var(--brand-soft);}
.faq-body p:last-child{margin-bottom:0;}

/* ============ CTA + 表单 ============ */
.cta-panel{
  background:linear-gradient(180deg,#F2F7FE,#E8F1FC);
  border:1px solid #D8E6F8;border-radius:20px;padding:48px 44px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-panel h2{margin-bottom:14px;}
.cta-panel .lead{color:var(--muted);font-size:15.5px;margin-bottom:24px;}
.cta-points{display:grid;gap:12px;margin-bottom:24px;}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--muted);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.68em;width:10px;height:10px;border-radius:3px;
  background:var(--accent);transform:rotate(45deg);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-lg);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .hint{font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px;}
.field .req{color:var(--accent);}
.form-control,.form-select{
  width:100%;padding:12px 14px;font-size:15px;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-input);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#9AA8BC;}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,168,.14);
}
.privacy-note{font-size:13px;color:var(--muted);background:var(--bg-soft);border-radius:10px;padding:12px 14px;margin-top:16px;}
.privacy-note a{font-weight:600;}

/* ============ 相关链接 ============ */
.rel-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
.rel-links a{
  display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);font-size:14.5px;font-weight:600;
  transition:all .25s ease;
}
.rel-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.rel-note{margin-top:18px;font-size:14.5px;color:var(--muted);max-width:760px;}

/* ============ 浮动咨询 ============ */
.float-consult{
  position:fixed;right:24px;bottom:24px;z-index:900;
  display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:var(--radius-pill);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 12px 28px rgba(22,87,168,.32);transition:all .25s ease;
}
.float-consult:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(22,87,168,.38);}

/* ============ 页脚 ============ */
.site-footer{background:#0B1B33;color:#C7D3E4;padding:68px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#8DA0BC;}
.footer-brand p{color:#93A5C0;font-size:14px;margin-top:18px;max-width:320px;}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;font-weight:700;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col li{font-size:14px;color:#93A5C0;}
.footer-col a{color:#C7D3E4;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.qr-box{
  margin-top:16px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;
  font-size:13px;color:#8DA0BC;background:rgba(255,255,255,.04);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#8DA0BC;
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:#C7D3E4;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .overview{gap:40px;}
}
@media (max-width:991px){
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:0;right:0;width:286px;height:100vh;margin:0;
    background:#fff;padding:94px 22px 28px;overflow-y:auto;
    box-shadow:-12px 0 40px rgba(16,32,58,.14);
    transform:translateX(102%);transition:transform .3s ease;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav a{display:block;padding:0;line-height:48px;border-bottom:1px solid var(--line);border-radius:0;font-size:15.5px;}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--brand);}
  .nav-actions .btn-main{display:none;}
  .overview{grid-template-columns:1fr;}
  .overview-media{order:-1;}
  .scene-card{grid-column:span 6;}
  .scene-card.lg{grid-column:span 12;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;padding:36px 26px;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  :root{--sp-block:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{padding:104px 0 38px;}
  .hero-line{font-size:15.5px;}
  .scene-card,.scene-card.lg{grid-column:span 12;}
  .metrics-grid{grid-template-columns:1fr;gap:20px;}
  .steps{grid-template-columns:1fr;}
  .section-head{margin-bottom:28px;}
  .faq-item summary{padding:16px 50px 16px 16px;}
  .cta-panel{padding:28px 18px;border-radius:16px;}
  .form-card{padding:22px 18px;}
  .brand-text em{display:none;}
  .float-consult{right:16px;bottom:16px;padding:11px 18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text strong{font-size:15px;}
  .btn{padding:12px 20px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;}
}