/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
:root{
  --c-900:#16305A;
  --c-700:#1F4C87;
  --c-600:#2A66AE;
  --c-100:#E7EFF9;
  --c-050:#F5F8FC;
  --accent:#E1783A;
  --accent-dark:#C9631F;
  --txt:#2B3A50;
  --muted:#5D6E86;
  --ph:#93A1B5;
  --border:#E2E9F3;
  --divider:#EDF2F8;
  --card:#FFFFFF;
  --bg:#F5F8FC;
  --ok:#1E8E6A;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --sh:0 2px 8px rgba(22,48,90,.06),0 12px 28px rgba(22,48,90,.06);
  --sh-hover:0 8px 20px rgba(22,48,90,.10),0 20px 44px rgba(22,48,90,.08);
  --tr:200ms ease;
  --nav-h:68px;
}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--txt);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-700);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:saturate(1.4) blur(10px);
  backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--tr);
}
.site-header.scrolled{box-shadow:0 8px 24px rgba(22,48,90,.08)}
.nav-inner{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  align-items:center;
  height:var(--nav-h);
  gap:20px;
}
.nav-left{display:flex;align-items:center;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--c-900);letter-spacing:.2px;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--c-700),var(--c-600));
  display:grid;place-items:center;color:#fff;font-size:15px;
  box-shadow:0 4px 10px rgba(31,76,135,.28);position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.75) 1px,transparent 1px);
  background-size:9px 9px;opacity:.35;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:36px;min-width:0}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:var(--nav-h);
  font-size:15px;font-weight:500;color:var(--txt);white-space:nowrap;
  transition:color var(--tr);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:16px;width:0;height:2px;border-radius:2px;background:var(--c-700);
  transition:width 180ms ease;
}
.nav-links a:hover{color:var(--c-700)}
.nav-links a:hover::after{width:20px}
.nav-links a.active{color:var(--c-700);font-weight:600}
.nav-links a.active::after{width:20px}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:14px}
.nav-search{display:flex;align-items:center;gap:8px}
.search-input{
  width:0;opacity:0;padding:0;height:38px;border-radius:var(--r-sm);
  border:1px solid rgba(31,76,135,.3);background:#fff;font-size:14px;
  transition:width var(--tr),opacity var(--tr),padding var(--tr);
}
.nav-search.open .search-input{width:220px;opacity:1;padding:0 12px;outline:none}
.search-input:focus{border-color:var(--c-700);box-shadow:0 0 0 3px rgba(31,76,135,.12)}
.search-btn{
  width:36px;height:36px;border-radius:999px;border:0;flex:0 0 auto;
  background:var(--c-100);color:var(--c-700);display:grid;place-items:center;
  font-size:14px;transition:background var(--tr),color var(--tr);
}
.search-btn:hover{background:#d8e6f7}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--tr),color var(--tr),box-shadow var(--tr),transform var(--tr),border-color var(--tr);
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--c-700);color:#fff}
.btn-primary:hover{background:var(--c-600);box-shadow:0 8px 20px rgba(31,76,135,.24)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);box-shadow:0 10px 22px rgba(225,120,58,.28)}
.btn-ghost{background:#fff;color:var(--c-700);border-color:#C9D6E8}
.btn-ghost:hover{background:var(--c-100);border-color:var(--c-700)}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;color:var(--c-900);
  place-items:center;font-size:16px;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;z-index:120;
  transform:translateX(100%);transition:transform 260ms ease;
  padding:22px 0 28px;display:flex;flex-direction:column;overflow-y:auto;
  box-shadow:-12px 0 40px rgba(22,48,90,.14);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--divider)}
.drawer-title{font-size:16px;font-weight:700;color:var(--c-900)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--border);background:#fff;color:var(--c-900);display:grid;place-items:center}
.drawer nav a{
  display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;
  border-bottom:1px solid var(--divider);color:var(--txt);
}
.drawer nav a.active{color:var(--c-700);font-weight:600;background:var(--c-050)}
.drawer-foot{margin-top:auto;padding:20px}
.drawer-foot .btn{width:100%}
.mask{
  position:fixed;inset:0;background:rgba(22,48,90,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity 240ms ease,visibility 240ms ease;
}
.mask.open{opacity:1;visibility:visible}

/* ---------- Hero ---------- */
.hero{padding:52px 0 84px;background:
  radial-gradient(1100px 420px at 88% -10%,rgba(31,76,135,.07),transparent 62%),
  #fff;
  overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  color:var(--c-700);background:var(--c-100);border-radius:999px;padding:6px 14px;
  letter-spacing:.4px;margin-bottom:20px;
}
.eyebrow i{font-size:11px;color:var(--accent)}
.hero h1{font-size:46px;line-height:1.25;font-weight:700;color:var(--c-900);letter-spacing:.2px}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--muted);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:0;margin-top:36px;border-top:1px solid var(--divider);padding-top:22px}
.hero-point{padding:0 26px;border-left:1px solid var(--border)}
.hero-point:first-child{padding-left:0;border-left:0}
.hero-point b{display:block;font-size:24px;line-height:1.3;color:var(--c-700);font-variant-numeric:tabular-nums}
.hero-point span{font-size:13px;color:var(--muted)}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3.2;
  box-shadow:var(--sh);background:var(--c-100);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(31,76,135,.06),rgba(22,48,90,.20))}
.hero-float{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  background:#fff;border-radius:var(--r-md);padding:16px 18px;
  box-shadow:0 10px 28px rgba(22,48,90,.18);
}
.hero-float strong{display:block;font-size:15px;color:var(--c-900);font-weight:600;margin-bottom:8px}
.hero-float .tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-float .tags span{
  font-size:12px;color:var(--c-700);background:var(--c-100);border-radius:999px;padding:3px 10px;
}
.hero-dots{position:absolute;top:16px;right:16px;z-index:2;display:flex;gap:6px}
.hero-dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.75);display:block}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section.alt{background:var(--c-050)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--c-900)}
.section-title::after{content:"";display:block;width:24px;height:3px;border-radius:2px;background:var(--c-700);margin-top:16px}
.section-head.center .section-title::after{margin-left:auto;margin-right:auto}
.section-desc{margin-top:16px;font-size:15px;color:var(--muted);line-height:1.85}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}

/* ---------- 入口能力错落卡 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.cap-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:30px;box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3E0F1}
.cap-card:hover .cap-title{color:var(--c-700)}
.cap-card:hover .text-link i{transform:translateX(2px)}
.w7{grid-column:span 7}
.w5{grid-column:span 5}
.cap-num{font-size:32px;font-weight:700;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.cap-card.blue .cap-num{color:var(--c-700)}
.cap-title{margin-top:16px;font-size:20px;font-weight:600;color:var(--c-900);transition:color var(--tr)}
.cap-text{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}
.cap-media{margin-top:20px;border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/7;background:var(--c-100)}
.cap-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.cap-card:hover .cap-media img{transform:scale(1.03)}
.cap-foot{margin-top:auto;padding-top:20px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-700);
}
.text-link i{font-size:11px;transition:transform var(--tr)}
.text-link:hover{color:var(--accent)}
.text-link:hover i{transform:translateX(2px)}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--c-050);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);padding:48px 0}
.stat{padding:0 28px;border-left:1px solid var(--border);text-align:left}
.stat:first-child{border-left:0;padding-left:0}
.stat b{font-size:44px;line-height:1.1;font-weight:700;color:var(--c-700);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.stat b em{font-style:normal;font-size:20px;color:var(--accent);font-weight:600;margin-left:4px;letter-spacing:0}
.stat p{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- 场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.scene + .scene{margin-top:72px}
.scene.reverse .scene-media{order:2}
.scene-media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--sh);background:var(--c-100)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform 500ms ease}
.scene-media:hover img{transform:scale(1.03)}
.scene-body .pill{margin-bottom:14px}
.scene-body h3{font-size:24px;font-weight:700;color:var(--c-900);line-height:1.4}
.scene-body p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85}
.metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:22px}
.metric b{display:block;font-size:26px;color:var(--c-700);font-weight:700;font-variant-numeric:tabular-nums}
.metric span{font-size:13px;color:var(--muted)}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  color:var(--c-700);background:var(--c-100);border-radius:999px;padding:4px 12px;line-height:1.5;
}
.pill.accent{color:var(--accent-dark);background:rgba(225,120,58,.1);border:1px solid rgba(225,120,58,.3)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:38px}
.step::before{
  content:"";position:absolute;top:5px;left:0;width:12px;height:12px;border-radius:50%;
  background:var(--c-700);box-shadow:0 0 0 4px rgba(31,76,135,.1);
}
.step::after{content:"";position:absolute;top:10px;left:26px;right:-24px;height:1px;background:var(--border)}
.step:last-child::after{display:none}
.step h3{font-size:17px;font-weight:600;color:var(--c-900)}
.step p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
  display:flex;
}
.news-link{display:flex;flex-direction:column;width:100%}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3E0F1}
.news-item:hover .news-title{color:var(--c-700)}
.news-cover{aspect-ratio:16/9;background:var(--c-100);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.news-item:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body .pill{align-self:flex-start}
.news-title{
  margin-top:12px;font-size:18px;line-height:1.5;font-weight:600;color:var(--c-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--tr);
}
.news-excerpt{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--divider);font-size:13px;color:var(--ph);
}
.news-more{color:var(--c-700);font-weight:600}
.news-empty{
  grid-column:1 / -1;border:1px dashed #C9D6E8;border-radius:var(--r-md);
  padding:56px 24px;text-align:center;color:var(--muted);background:#fff;
}
.news-empty i{display:block;font-size:26px;color:#B9C9DE;margin-bottom:12px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:box-shadow var(--tr),border-color var(--tr);
}
.faq-item:hover{border-color:#D3E0F1}
.faq-item.open{box-shadow:inset 3px 0 0 0 var(--c-700),var(--sh)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 22px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-900);line-height:1.6;
}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;
  color:var(--c-700);font-size:13px;transition:transform 260ms ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA 表单 ---------- */
.cta-band{background:var(--c-900);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(#fff 1px,transparent 1px);background-size:22px 22px;
}
.cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start;padding:80px 0}
.cta-left h2{font-size:30px;line-height:1.4;font-weight:700;color:#fff}
.cta-left h2::after{content:"";display:block;width:24px;height:3px;border-radius:2px;background:var(--accent);margin-top:16px}
.cta-left p{margin-top:18px;font-size:15px;color:rgba(255,255,255,.76);line-height:1.85}
.contact-list{margin-top:28px}
.contact-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:14px;color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.1)}
.contact-list i{color:var(--accent);font-size:13px;margin-top:6px}
.form-card{
  background:#fff;border-radius:var(--r-lg);padding:30px;box-shadow:0 24px 60px rgba(8,22,44,.28);
}
.form-title{font-size:19px;font-weight:700;color:var(--c-900);margin-bottom:6px}
.form-tip{font-size:13px;color:var(--muted);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px}
.field input,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--r-sm);
  background:#fff;font-size:15px;padding:0 14px;height:44px;transition:border-color var(--tr),box-shadow var(--tr);
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ph)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-700);box-shadow:0 0 0 3px rgba(31,76,135,.12)}
.field.error input,.field.error textarea{border-color:#C0392B}
.field .err{display:none;margin-top:6px;font-size:12px;color:#C0392B}
.field.error .err{display:block}
.form-ok{
  display:none;margin-top:16px;background:rgba(30,142,106,.1);color:var(--ok);
  border:1px solid rgba(30,142,106,.3);border-radius:var(--r-sm);padding:12px 14px;font-size:14px;
}
.form-ok.show{display:block}
.form-card .btn{width:100%;margin-top:6px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-900);color:rgba(255,255,255,.72);position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:120px;opacity:.04;
  background-image:radial-gradient(#fff 1px,transparent 1px);background-size:20px 20px;
}
.footer-grid{position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-brand .brand-mark{box-shadow:none}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:26em}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--tr),box-shadow var(--tr)}
.footer-col a:hover{color:#fff;box-shadow:inset 0 -1px 0 0 var(--accent)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-bottom{
  position:relative;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:40px}
  .nav-links{gap:20px;margin-left:26px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-inner{grid-template-columns:1fr auto;height:56px}
  :root{--nav-h:56px}
  .nav-links,.nav-search{display:none}
  .burger{display:grid}
  .hero{padding:36px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .hero-media{aspect-ratio:16/9}
  .hero-media::after{background:linear-gradient(180deg,rgba(31,76,135,.06),rgba(22,48,90,.24))}
  .section{padding:64px 0}
  .section-title{font-size:26px}
  .cap-grid{grid-template-columns:1fr 1fr;gap:20px}
  .w7,.w5{grid-column:span 1}
  .stats{grid-template-columns:1fr 1fr;gap:0;padding:36px 0}
  .stat{padding:20px 24px;border-left:1px solid var(--border);border-top:1px solid var(--border)}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0}
  .scene{grid-template-columns:1fr;gap:28px}
  .scene.reverse .scene-media{order:0}
  .scene + .scene{margin-top:56px}
  .steps{grid-template-columns:1fr 1fr;gap:28px}
  .step::after{display:none}
  .news-list{grid-template-columns:1fr 1fr}
  .cta-grid{grid-template-columns:1fr;gap:36px;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .hero-points{gap:0;flex-direction:column;border-top:1px solid var(--divider)}
  .hero-point{padding:14px 0;border-left:0;border-bottom:1px solid var(--divider)}
  .hero-point:last-child{border-bottom:0}
  .cap-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;padding:18px 0}
  .stat + .stat{border-top:1px solid var(--border)}
  .steps{grid-template-columns:1fr;gap:26px}
  .news-list{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .section-title{font-size:23px}
  .scene-body h3{font-size:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  .brand{font-size:15px}
  .hero h1{font-size:25px}
  .cap-num{font-size:28px}
  .stat b{font-size:36px}
}

/* roulang page: article */
:root{
  --c-900:#16305A;
  --c-700:#1F4C87;
  --c-600:#2A66AE;
  --c-100:#E7EFF9;
  --c-050:#F5F8FC;
  --c-accent:#E1783A;
  --c-accent-d:#C9621F;
  --t-900:#2B3A50;
  --t-600:#5D6E86;
  --t-400:#93A1B5;
  --line:#E2E9F3;
  --line-2:#EDF2F8;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ok:#1E8E6A;
  --warn:#C98A16;
  --err:#C0392B;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-p:999px;
  --sh-1:0 2px 8px rgba(22,48,90,.06), 0 12px 28px rgba(22,48,90,.06);
  --sh-2:0 8px 20px rgba(22,48,90,.10), 0 20px 44px rgba(22,48,90,.08);
  --nav-h:68px;
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--t-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--c-900);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--c-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-700);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .12s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-700);color:#fff;}
.btn-primary:hover{background:var(--c-600);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-700);border-color:#C9D6E8;}
.btn-ghost:hover{background:var(--c-100);border-color:var(--c-700);color:var(--c-700);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-d);color:#fff;box-shadow:0 8px 20px rgba(225,120,58,.28);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(22,48,90,.06);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--c-900);letter-spacing:.2px;}
.brand:hover{color:var(--c-700);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(140deg,var(--c-700),var(--c-600));
  color:#fff;font-size:15px;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:var(--nav-h);
  font-size:15px;font-weight:500;color:var(--t-900);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  width:0;height:2px;background:var(--c-700);transition:width .18s ease;
}
.nav-links a:hover{color:var(--c-700);}
.nav-links a:hover::after{width:20px;}
.nav-links a.active{color:var(--c-700);font-weight:600;}
.nav-links a.active::after{width:20px;}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{display:flex;align-items:center;gap:10px;}
.search-input{
  width:0;opacity:0;padding:0;height:38px;
  border:1px solid rgba(31,76,135,.3);border-radius:var(--r-s);
  font-size:14px;color:var(--t-900);background:#fff;
  transition:width .22s ease,opacity .22s ease,padding .22s ease;
}
.nav-search.open .search-input{width:240px;opacity:1;padding:0 12px;}
.search-input::placeholder{color:var(--t-400);}
.search-btn{
  width:36px;height:36px;border-radius:var(--r-p);border:0;
  background:var(--c-100);color:var(--c-700);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.search-btn:hover{background:#D8E5F6;}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-s);
  border:1px solid var(--line);background:#fff;color:var(--c-900);
  font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.burger:hover{border-color:var(--c-600);color:var(--c-700);}

/* 抽屉 */
.nav-overlay{
  position:fixed;inset:0;background:rgba(22,48,90,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.nav-overlay.show{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;box-shadow:-12px 0 30px rgba(22,48,90,.12);
}
.nav-drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border:0;background:var(--c-050);border-radius:var(--r-s);color:var(--c-900);font-size:16px;cursor:pointer;}
.drawer-links{flex:1;overflow:auto;padding:8px 0;}
.drawer-links a{display:block;padding:0 20px;line-height:48px;font-size:15px;color:var(--t-900);border-bottom:1px solid var(--line-2);}
.drawer-links a:hover{background:var(--c-050);color:var(--c-700);}
.drawer-links a.active{color:var(--c-700);font-weight:600;background:var(--c-050);}
.drawer-search{padding:14px 20px 0;}
.drawer-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-s);padding:0 12px;font-size:14px;}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line);}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line-2);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--t-600);padding:14px 0;
}
.crumb a{color:var(--t-600);}
.crumb a:hover{color:var(--c-700);}
.crumb .sep{color:#C9D6E8;}
.crumb .current{color:var(--c-700);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章布局 ============ */
main{display:block;}
.article-wrap{padding:36px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;}
.article-head{padding-bottom:20px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-p);
  background:var(--c-100);color:var(--c-700);
  font-size:12.5px;font-weight:600;line-height:1.5;
}
.badge-accent{background:#fff;border:1px solid rgba(225,120,58,.45);color:var(--c-accent-d);}
.article-title{
  font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.3;
  margin:16px 0 14px;color:var(--c-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--t-600);
}
.article-meta .divider{width:1px;height:13px;background:var(--line);}
.article-meta i{color:var(--c-600);margin-right:4px;font-size:12px;}

.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--t-900);padding-top:26px;}
.article-body > * + *{margin-top:18px;}
.article-body p{margin:0;color:var(--t-900);}
.article-body h2{
  position:relative;font-size:22px;font-weight:700;color:var(--c-900);
  margin:38px 0 14px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:2px;background:var(--c-700);
}
.article-body h3{font-size:18px;font-weight:600;color:var(--c-900);margin:26px 0 10px;}
.article-body h4{font-size:16px;font-weight:600;color:var(--c-700);margin:20px 0 8px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;line-height:1.9;}
.article-body li::marker{color:var(--c-600);}
.article-body a{color:var(--c-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-accent);}
.article-body strong{color:var(--c-900);}
.article-body img{border-radius:var(--r-m);margin:22px auto;height:auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t-400);margin-top:8px;}
.article-body blockquote{
  margin:22px 0;padding:14px 20px;border-left:3px solid var(--c-700);
  background:var(--c-050);border-radius:0 var(--r-m) var(--r-m) 0;
  color:var(--t-600);font-size:16px;
}
.article-body blockquote p{color:var(--t-600);}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:20px 0;
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
}
.article-body thead th{background:var(--c-100);color:var(--c-900);font-weight:600;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body tbody tr:hover{background:var(--c-050);}
.article-body code{
  background:var(--c-050);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;font-size:14px;color:var(--c-900);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}

/* 空态 */
.empty-state{
  border:1px dashed #C9D6E8;border-radius:var(--r-l);
  background:#fff;padding:52px 28px;text-align:center;
}
.empty-state i{font-size:30px;color:var(--c-600);}
.empty-state p{margin:14px 0 20px;color:var(--t-600);font-size:15px;}

/* 文章尾部 */
.article-foot{max-width:800px;padding-top:34px;margin-top:34px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row .label{font-size:14px;color:var(--t-600);}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-p);
  background:var(--c-050);border:1px solid var(--line);
  font-size:13px;color:var(--t-600);transition:all .2s ease;
}
.tag:hover{border-color:var(--c-600);color:var(--c-700);background:var(--c-100);}

.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px;}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:18px 20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#C9D6E8;}
.pn-dir{display:block;font-size:12.5px;color:var(--t-400);margin-bottom:6px;}
.pn-title{display:block;font-size:16px;font-weight:600;color:var(--c-900);line-height:1.5;}
.pn-card:hover .pn-title{color:var(--c-700);}

.sec-title{font-size:22px;font-weight:700;color:var(--c-900);position:relative;padding-bottom:12px;margin-bottom:6px;}
.sec-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;background:var(--c-700);border-radius:2px;}
.sec-note{font-size:14px;color:var(--t-600);margin-bottom:18px;}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#C9D6E8;}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(31,76,135,.08);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rec-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--c-900);}
.rec-card:hover .rec-title{color:var(--c-700);}
.rec-text{font-size:14px;line-height:1.7;color:var(--t-600);}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--t-400);}
.rec-foot .more{color:var(--c-700);font-weight:600;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-700);}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover{color:var(--c-accent);}
.link-arrow:hover i{transform:translateX(2px);}

.back-row{margin-top:28px;}

/* 侧栏 */
.article-side{position:sticky;top:calc(var(--nav-h) + 24px);display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:20px;box-shadow:var(--sh-1);}
.side-card h2,.side-card h3{font-size:16px;font-weight:700;color:var(--c-900);margin:0 0 14px;padding-left:11px;position:relative;}
.side-card h2::before,.side-card h3::before{content:"";position:absolute;left:0;top:.2em;width:3px;height:1em;border-radius:2px;background:var(--c-700);}
.side-list li + li{border-top:1px solid var(--line-2);}
.side-list a{display:flex;align-items:flex-start;gap:8px;padding:11px 0;font-size:14.5px;color:var(--t-900);line-height:1.6;}
.side-list a i{color:var(--c-600);font-size:11px;margin-top:7px;}
.side-list a:hover{color:var(--c-700);}
.side-note{font-size:13.5px;color:var(--t-600);line-height:1.75;}
.side-cta{background:linear-gradient(160deg,#F7FAFF,#EDF3FB);border:1px solid var(--line);}
.side-cta .side-note{margin-bottom:14px;}

/* CTA 条 */
.cta-band{background:var(--c-050);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:25px;font-weight:700;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--t-600);max-width:62ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  position:relative;background:var(--c-900);color:#C7D6EC;padding:56px 0 0;margin-top:0;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:34px 34px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.35),transparent 60%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.35),transparent 60%);
}
.footer-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-about{font-size:14px;line-height:1.8;color:#A9BEDC;max-width:34ch;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:#A9BEDC;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:4px;}
.footer-col p{font-size:14px;color:#A9BEDC;margin-bottom:10px;line-height:1.75;}
.footer-bottom{
  position:relative;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:18px 0;font-size:13.5px;color:#8FA6C7;
}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-side .side-card{flex:1 1 300px;}
}
@media (max-width:1023px){
  .nav-links,.nav-search{display:none;}
  .burger{display:inline-flex;}
  .container{padding:0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .nav-right .btn-sm{display:none;}
  .nav-inner{height:56px;}
  :root{--nav-h:56px;}
  .brand span:last-child{font-size:16px;}
  .article-wrap{padding:24px 0 52px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;}
  .pn-grid,.rec-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:36px 0;}
  .cta-inner h2{font-size:21px;}
  .site-footer{padding-top:40px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .article-title{font-size:24px;}
  .crumb .current{max-width:22ch;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --c-900:#16305A;
  --c-700:#1F4C87;
  --c-600:#2A66AE;
  --c-100:#E7EFF9;
  --c-050:#F5F8FC;
  --accent:#E1783A;
  --text:#2B3A50;
  --text-2:#5D6E86;
  --text-3:#93A1B5;
  --border:#E2E9F3;
  --divider:#EDF2F8;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ok:#1E8E6A;
  --warn:#C98A16;
  --err:#C0392B;
  --r-sm:8px;
  --r:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh:0 2px 8px rgba(22,48,90,.06), 0 12px 28px rgba(22,48,90,.06);
  --sh-h:0 8px 20px rgba(22,48,90,.10), 0 20px 44px rgba(22,48,90,.08);
  --nav-h:68px;
  --maxw:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:#fff;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-700);text-decoration:none;transition:color .18s ease;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;color:var(--c-900);line-height:1.35;}
button{font:inherit;cursor:pointer;}
input,textarea{font:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-700);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:72px 0;}
.section-alt{background:var(--c-050);}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head h2{font-size:30px;font-weight:700;position:relative;padding-bottom:16px;}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;border-radius:2px;background:var(--c-700);}
.section-head p{margin-top:16px;font-size:15.5px;color:var(--text-2);line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.4px;
  color:var(--c-700);background:var(--c-100);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1.4;color:var(--c-700);
  background:var(--c-100);border-radius:var(--r-pill);padding:4px 11px;
}
.tag-outline{background:transparent;border:1px solid rgba(225,120,58,.5);color:#B85C24;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(180%) blur(8px);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(22,48,90,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.nav-left{display:flex;align-items:center;gap:28px;flex:7 1 auto;min-width:0;}
.nav-right{display:flex;align-items:center;gap:14px;flex:5 1 auto;justify-content:flex-end;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--c-900);white-space:nowrap;
}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 32px;
  background:linear-gradient(135deg,var(--c-700),var(--c-900));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:var(--nav-h);
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:20px;width:20px;height:2px;border-radius:2px;
  background:var(--c-700);transform:translateX(-50%) scaleX(0);transition:transform .18s ease;
}
.nav-links a:hover{color:var(--c-700);}
.nav-links a:hover::after,.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.active{color:var(--c-700);font-weight:600;}
.nav-search{
  display:flex;align-items:center;border-radius:var(--r-pill);
  background:var(--c-050);border:1px solid transparent;padding:3px;transition:background .2s ease,border-color .2s ease,padding .2s ease;
}
.search-input{
  width:0;opacity:0;border:0;background:transparent;height:34px;padding:0;
  font-size:14px;color:var(--text);transition:width .25s ease,opacity .2s ease;
}
.search-input::placeholder{color:var(--text-3);}
.nav-search.open{background:#fff;border-color:rgba(31,76,135,.3);padding-left:12px;}
.nav-search.open .search-input{width:230px;opacity:1;padding:0 8px 0 4px;}
.search-btn{
  width:36px;height:36px;flex:0 0 36px;border-radius:var(--r-pill);border:0;
  background:var(--c-100);color:var(--c-700);
  display:inline-flex;align-items:center;justify-content:center;transition:.2s ease;
}
.search-btn:hover{background:var(--c-700);color:#fff;}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;color:var(--c-900);
  align-items:center;justify-content:center;font-size:16px;
}
.burger:hover{background:var(--c-050);border-color:#C9D6E8;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .12s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-700);color:#fff;}
.btn-primary:hover{background:var(--c-600);color:#fff;box-shadow:var(--sh);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--c-700);border-color:#C9D6E8;}
.btn-ghost:hover{background:var(--c-100);border-color:var(--c-700);color:var(--c-700);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#CF6A2D;color:#fff;box-shadow:0 10px 22px rgba(225,120,58,.28);}
.btn-light{background:#fff;color:var(--c-900);}
.btn-light:hover{background:#EAF1FA;color:var(--c-900);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:14px;color:var(--text-2);display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--c-700);}
.crumb .sep{color:var(--text-3);}
.crumb .current{color:var(--c-700);font-weight:600;}

/* ---------- Page hero ---------- */
.page-hero{
  background:var(--c-050);
  border-bottom:1px solid var(--border);
  padding:28px 0 56px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,42%);
  gap:44px;align-items:center;margin-top:26px;
}
.hero-copy h1{font-size:36px;line-height:1.3;font-weight:700;margin-bottom:18px;}
.hero-copy .lead{font-size:16px;color:var(--text-2);line-height:1.9;max-width:600px;}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-anchors a{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:500;color:var(--c-700);
  background:#fff;border:1px solid var(--border);border-radius:var(--r-pill);
  padding:8px 15px;transition:.2s ease;
}
.hero-anchors a:hover{background:var(--c-100);border-color:var(--c-700);}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;box-shadow:var(--sh);background:var(--c-100);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 22% 28%, rgba(255,255,255,.28) 0 1px, transparent 1px),
    radial-gradient(circle at 68% 62%, rgba(255,255,255,.22) 0 1px, transparent 1px),
    rgba(31,76,135,.12);
  background-size:120px 120px, 160px 160px, auto;
}
.hero-float{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  background:#fff;border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh);
}
.hero-float strong{display:block;font-size:15px;color:var(--c-900);margin-bottom:8px;}
.hero-float .tags{display:flex;gap:8px;flex-wrap:wrap;}

/* ---------- Layout with side anchors ---------- */
.layout{
  display:grid;grid-template-columns:200px minmax(0,1fr);
  gap:36px;align-items:start;
}
.side-nav{
  position:sticky;top:calc(var(--nav-h) + 24px);
  border-left:1px solid var(--border);padding-left:16px;
}
.side-nav .side-title{
  font-size:12.5px;letter-spacing:.6px;color:var(--text-3);
  margin-bottom:10px;font-weight:600;
}
.side-nav a{
  display:block;font-size:14px;color:var(--text-2);
  padding:9px 0;border-radius:6px;transition:.2s ease;
}
.side-nav a:hover{color:var(--c-700);padding-left:6px;}
.side-nav a.active{color:var(--c-700);font-weight:600;}

/* ---------- Entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r);padding:22px;box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#D5E2F1;}
.entry-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-100);color:var(--c-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;
}
.entry-card:hover .entry-icon{background:var(--c-700);color:#fff;}
.entry-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.entry-card:hover h3{color:var(--c-700);}
.entry-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:14px;}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.entry-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-700);
}
.entry-link i{font-size:12px;transition:transform .2s ease;}
.entry-link:hover{color:var(--accent);}
.entry-link:hover i{transform:translateX(3px);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:32px;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  padding:22px;box-shadow:var(--sh);position:relative;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-h);}
.step-num{
  font-size:30px;font-weight:700;color:var(--c-700);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin:0;}
.step::before{
  content:"";position:absolute;left:0;top:22px;width:3px;height:34px;
  border-radius:0 3px 3px 0;background:var(--c-700);opacity:0;transition:opacity .2s ease;
}
.step:hover::before{opacity:1;}

/* ---------- Table ---------- */
.table-wrap{
  margin-top:28px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);
}
table{width:100%;border-collapse:collapse;min-width:660px;}
th,td{padding:15px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--divider);vertical-align:top;}
th{background:var(--c-100);color:var(--c-900);font-weight:600;font-size:14.5px;white-space:nowrap;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:var(--c-050);}
td strong{color:var(--c-900);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;margin-top:28px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh);}
.faq-item.open{border-left:3px solid var(--c-700);}
.faq-q{
  width:100%;height:56px;padding:0 20px;background:transparent;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16.5px;font-weight:600;color:var(--c-900);text-align:left;
}
.faq-q i{font-size:14px;color:var(--c-700);transition:transform .25s ease;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 20px;}
.faq-item.open .faq-a{max-height:380px;padding:0 20px 20px;}
.faq-a p{margin:0;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- Related links ---------- */
.related{margin-top:8px;border-top:1px solid var(--border);}
.related a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;border-bottom:1px solid var(--border);
  font-size:16px;font-weight:500;color:var(--c-900);
  transition:padding .2s ease,color .2s ease;
}
.related a span.hint{font-size:13.5px;font-weight:400;color:var(--text-3);}
.related a:hover{color:var(--c-700);padding-left:12px;}
.related a:hover span.hint{color:var(--c-700);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#16305A,#1F4C87);
  color:#fff;border-radius:var(--r-lg);padding:44px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.14) 0 1px, transparent 1px),
    radial-gradient(circle, rgba(255,255,255,.10) 0 1px, transparent 1px);
  background-size:140px 140px, 200px 200px;
  background-position:0 0, 60px 40px;
  opacity:.5;
}
.cta-band h2{color:#fff;font-size:28px;font-weight:700;margin-bottom:12px;position:relative;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0;position:relative;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;position:relative;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;background:var(--c-900);color:#C9D6E8;position:relative;
  padding:56px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:120px;pointer-events:none;
  background-image:radial-gradient(circle, rgba(255,255,255,.35) 0 1px, transparent 1px);
  background-size:150px 150px;opacity:.06;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:40px;position:relative;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.85;color:#A7B9D2;margin:0;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A7B9D2;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;}
.footer-col p{font-size:14px;color:#A7B9D2;margin:0 0 10px;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8FA4C0;
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,48,90,.45);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:80;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:90;
  background:#fff;box-shadow:-12px 0 32px rgba(22,48,90,.18);
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:18px 18px 24px;
}
.drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--border);}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--border);
  background:#fff;color:var(--c-900);display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-050);}
.drawer-nav{display:grid;margin-top:8px;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--divider);
}
.drawer-nav a.active{color:var(--c-700);font-weight:600;}
.drawer-nav a:hover{color:var(--c-700);}
.drawer-cta{margin-top:16px;}

/* ---------- Utilities ---------- */
.mt-20{margin-top:20px;}
.mt-28{margin-top:28px;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .section{padding:64px 0;}
}
@media (max-width:1023px){
  :root{--nav-h:56px;}
  .container{padding:0 24px;}
  .nav-links,.nav-search,.nav-right .btn{display:none;}
  .burger{display:inline-flex;}
  .nav-inner{gap:16px;}
  .nav-left,.nav-right{flex:0 1 auto;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-copy h1{font-size:30px;}
  .page-hero{padding:20px 0 44px;}
  .layout{grid-template-columns:1fr;gap:22px;}
  .side-nav{
    position:static;display:flex;gap:8px;overflow-x:auto;
    border-left:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
    padding:12px 0;background:transparent;scrollbar-width:none;
  }
  .side-nav::-webkit-scrollbar{display:none;}
  .side-nav .side-title{display:none;}
  .side-nav a{
    white-space:nowrap;padding:7px 14px;border-radius:var(--r-pill);
    background:#fff;border:1px solid var(--border);font-size:13px;
  }
  .side-nav a:hover{padding-left:14px;}
  .side-nav a.active{background:var(--c-100);border-color:var(--c-700);}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:24px;}
  .hero-copy h1{font-size:26px;}
  .entry-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .table-wrap{background:transparent;border:0;box-shadow:none;overflow:visible;margin-top:22px;}
  table{min-width:0;border-collapse:separate;border-spacing:0 12px;}
  thead{display:none;}
  tbody tr{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:4px 16px;box-shadow:var(--sh);}
  td{display:flex;gap:14px;border-bottom:1px dashed var(--divider);padding:12px 0;}
  td:last-child{border-bottom:0;}
  td::before{
    content:attr(data-label);flex:0 0 78px;color:var(--text-3);
    font-size:13px;line-height:1.8;
  }
  .cta-band{padding:28px 22px;border-radius:var(--r);}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:479px){
  .hero-copy h1{font-size:23px;}
  .brand span:last-child{font-size:16px;}
  .hero-anchors a{font-size:12.5px;padding:7px 12px;}
}

/* roulang page: category2 */
:root{
  --c-900:#16305A;
  --c-700:#1F4C87;
  --c-600:#2A66AE;
  --c-100:#E7EFF9;
  --c-050:#F5F8FC;
  --c-accent:#E1783A;
  --c-accent-dark:#C9662B;
  --t-main:#2B3A50;
  --t-sub:#5D6E86;
  --t-mute:#93A1B5;
  --line:#E2E9F3;
  --line-soft:#EDF2F8;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ok:#1E8E6A;
  --warn:#C98A16;
  --err:#C0392B;
  --r-card:12px;
  --r-lg:16px;
  --r-btn:8px;
  --r-pill:999px;
  --sh:0 2px 8px rgba(22,48,90,.06),0 12px 28px rgba(22,48,90,.06);
  --sh-hover:0 8px 20px rgba(22,48,90,.10),0 20px 44px rgba(22,48,90,.08);
  --nav-h:68px;
  --container:1200px;
  --tr:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--t-main);
  background:#fff;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-700);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--c-700);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr),transform var(--tr);
  white-space:nowrap;
  cursor:pointer;
}
.btn-primary{background:var(--c-700);color:#fff}
.btn-primary:hover{background:var(--c-600);color:#fff;box-shadow:var(--sh-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:#C9D6E8;color:var(--c-700)}
.btn-ghost:hover{background:var(--c-100);border-color:var(--c-700);color:var(--c-700)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;box-shadow:var(--sh-hover);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 标签 / 药丸 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:500;
  line-height:1.5;
  background:var(--c-100);
  color:var(--c-700);
}
.pill-accent{background:rgba(225,120,58,.10);color:#B85C1F;border:1px solid rgba(225,120,58,.35)}
.pill-outline{background:#fff;border:1px solid var(--line);color:var(--t-sub)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(8px);
  transition:box-shadow var(--tr);
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(22,48,90,.07)}
.nav-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  align-items:center;
  height:var(--nav-h);
}
.nav-left{display:flex;align-items:center;gap:32px;height:100%;min-width:0}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--c-900);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--c-700)}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--c-100);
  color:var(--c-700);
  font-size:15px;
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:28px;height:100%}
.nav-links a{
  position:relative;
  display:flex;
  align-items:center;
  height:100%;
  font-size:15px;
  font-weight:500;
  color:var(--t-main);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:22px;
  width:20px;
  height:2px;
  background:var(--c-700);
  border-radius:2px;
  transform:translateX(-50%) scaleX(0);
  transition:transform 180ms ease;
}
.nav-links a:hover{color:var(--c-700)}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-links a.active{color:var(--c-700);font-weight:600}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:16px}
.nav-search{display:flex;align-items:center;position:relative}
.search-input{
  width:0;
  height:36px;
  padding:0;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  background:#fff;
  font-size:14px;
  color:var(--t-main);
  opacity:0;
  transition:width 220ms ease,opacity 220ms ease,border-color var(--tr),padding 220ms ease;
}
.search-input::placeholder{color:var(--t-mute)}
.search-input:focus{outline:none;border-color:rgba(31,76,135,.3);box-shadow:0 0 0 3px rgba(31,76,135,.12)}
.nav-search.open .search-input{width:240px;opacity:1;padding:0 14px;border-color:rgba(31,76,135,.3)}
.search-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:var(--r-pill);
  background:var(--c-100);
  color:var(--c-700);
  font-size:14px;
  transition:background var(--tr),color var(--tr);
}
.search-btn:hover{background:#D8E5F6}
.burger{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:var(--r-btn);
  background:var(--c-100);
  color:var(--c-900);
  font-size:16px;
}
.drawer-cta{display:none}
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(22,48,90,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity var(--tr);
  z-index:110;
}
.nav-mask.show{opacity:1;pointer-events:auto}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:14px;
  color:var(--t-sub);
  padding-top:20px;
}
.crumb a{color:var(--t-sub)}
.crumb a:hover{color:var(--c-700)}
.crumb span{color:var(--t-mute)}
.crumb em{font-style:normal;color:var(--c-700);font-weight:600}

/* ---------- 页头 ---------- */
.page-hero{
  padding:calc(var(--nav-h) + 8px) 0 64px;
  background:linear-gradient(180deg,#F5F8FC 0%,#FFFFFF 100%);
}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:center;
  margin-top:28px;
}
.page-hero h1{
  font-size:36px;
  line-height:1.3;
  font-weight:700;
  color:var(--c-900);
  letter-spacing:.2px;
  margin-top:16px;
}
.hero-sub{
  margin-top:16px;
  font-size:16px;
  color:var(--t-sub);
  max-width:620px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
}
.hero-point{
  padding-left:16px;
  border-left:1px solid var(--line);
}
.hero-point:first-child{border-left:0;padding-left:0}
.hero-point b{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--c-700);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.hero-point b i{font-style:normal;font-size:14px;color:var(--c-accent);font-weight:600;margin-left:2px}
.hero-point span{font-size:13px;color:var(--t-sub)}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16 / 11;
  box-shadow:var(--sh);
  background:var(--c-100);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(31,76,135,.12);
  pointer-events:none;
}
.float-card{
  position:absolute;
  left:16px;
  right:16px;
  bottom:16px;
  z-index:2;
  background:#fff;
  border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--sh);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.float-card strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--c-900);
}
.float-tags{display:flex;gap:8px;flex-wrap:wrap}
.dot-deco{
  position:absolute;
  top:18px;
  right:20px;
  display:flex;
  gap:6px;
  z-index:2;
}
.dot-deco i{
  width:6px;
  height:6px;
  border-radius:50%;
  background:rgba(255,255,255,.85);
  display:block;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg)}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--c-900);
}
.section-head h2::after{
  content:"";
  display:block;
  width:24px;
  height:3px;
  border-radius:2px;
  background:var(--c-700);
  margin-top:16px;
}
.section-head p{
  margin-top:16px;
  font-size:15px;
  color:var(--t-sub);
}

/* ---------- 项目索引 ---------- */
.index-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh);
}
.index-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:600;
  color:var(--c-900);
  margin-bottom:18px;
}
.index-title i{color:var(--c-accent)}
.index-tags{display:flex;flex-wrap:wrap;gap:10px}
.index-tags a{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--c-050);
  font-size:14px;
  color:var(--t-main);
  transition:all var(--tr);
}
.index-tags a:hover{
  background:var(--c-100);
  border-color:var(--c-700);
  color:var(--c-700);
  transform:translateY(-2px);
}
.index-note{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  font-size:14px;
  color:var(--t-sub);
}

/* ---------- 图文交替长条 ---------- */
.alt-list{display:grid;gap:20px}
.alt-row{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:24px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh);
  transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);
}
.alt-row:hover{
  box-shadow:var(--sh-hover);
  transform:translateY(-4px);
  border-color:#D5E1F1;
}
.alt-row:nth-child(even){grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.alt-row:nth-child(even) .alt-media{order:2}
.alt-media{
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:var(--c-100);
  position:relative;
}
.alt-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 400ms ease;
}
.alt-row:hover .alt-media img{transform:scale(1.03)}
.alt-body{min-width:0}
.alt-index{
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:var(--c-700);
  font-variant-numeric:tabular-nums;
  letter-spacing:1px;
}
.alt-body h3{
  font-size:20px;
  font-weight:600;
  color:var(--c-900);
  margin-top:14px;
}
.alt-body p{
  margin-top:12px;
  font-size:15px;
  color:var(--t-sub);
}
.alt-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:var(--c-700);
}
.link-more i{font-size:12px;transition:transform var(--tr)}
.link-more:hover{color:var(--c-accent)}
.link-more:hover i{transform:translateX(2px)}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.flow-step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh);
  transition:box-shadow var(--tr),transform var(--tr);
}
.flow-step:hover{box-shadow:var(--sh-hover);transform:translateY(-4px)}
.flow-dot{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--c-100);
  color:var(--c-700);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{
  margin-top:14px;
  font-size:17px;
  font-weight:600;
  color:var(--c-900);
}
.flow-step p{
  margin-top:10px;
  font-size:14px;
  color:var(--t-sub);
}
.flow-line{
  height:1px;
  background:var(--line);
  margin:28px 0 0;
}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--bg);padding:56px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:0 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat-num{
  font-size:44px;
  font-weight:700;
  line-height:1.1;
  color:var(--c-700);
  font-variant-numeric:tabular-nums;
}
.stat-num i{font-style:normal;font-size:20px;color:var(--c-accent);margin-left:4px;font-weight:600}
.stat-label{margin-top:10px;font-size:14px;color:var(--t-sub)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:box-shadow var(--tr),border-color var(--tr);
}
.faq-item:hover{box-shadow:var(--sh)}
.faq-item.open{border-color:#D5E1F1;border-left:3px solid var(--c-700);box-shadow:var(--sh)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  min-height:56px;
  padding:12px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--c-900);
  text-align:left;
}
.faq-q:hover{color:var(--c-700)}
.faq-icon{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:20px;
  height:20px;
  color:var(--c-700);
  font-size:14px;
  transition:transform 260ms ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 300ms ease;
}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--t-sub);
}

/* ---------- 相关分类 ---------- */
.related-list{display:grid;gap:12px;max-width:920px}
.related-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color var(--tr),box-shadow var(--tr),transform var(--tr);
}
.related-item:hover{border-color:var(--c-700);box-shadow:var(--sh);transform:translateX(4px)}
.related-item strong{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--c-900);
}
.related-item span{
  display:block;
  margin-top:4px;
  font-size:14px;
  color:var(--t-sub);
}
.related-item i{color:var(--c-700);font-size:13px;transition:transform var(--tr)}
.related-item:hover i{transform:translateX(3px);color:var(--c-accent)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--c-900);
  color:#fff;
  padding:64px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.08;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}
.cta-inner p{
  margin-top:12px;
  font-size:15px;
  color:#B7C6DC;
  max-width:620px;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--c-900);
  color:#C6D2E4;
  padding-top:64px;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:120px;
  background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);
  background-size:28px 28px;
  opacity:.04;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:rgba(231,239,249,.14);color:#fff}
.footer-about{
  font-size:14px;
  line-height:1.9;
  color:#A9BBD3;
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9BBD3}
.footer-col a:hover{
  color:#fff;
  text-decoration:underline;
  text-decoration-color:var(--c-accent);
  text-underline-offset:4px;
}
.footer-col p{font-size:14px;color:#A9BBD3;margin-bottom:8px}
.footer-bottom{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:#8FA3BF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-inner{grid-template-columns:1fr auto;height:56px}
  .nav-links{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:280px;
    padding:76px 0 24px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    height:auto;
    background:#fff;
    box-shadow:-12px 0 32px rgba(22,48,90,.12);
    transform:translateX(100%);
    transition:transform 280ms ease;
    z-index:120;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-links a{
    height:48px;
    width:100%;
    padding:0 20px;
    border-bottom:1px solid var(--line-soft);
    font-size:15px;
  }
  .nav-links a::after{display:none}
  .drawer-cta{
    display:inline-flex;
    margin:20px 20px 0;
    width:calc(100% - 40px);
    border-bottom:0;
  }
  .burger{display:inline-flex}
  .nav-search{display:none}
  .nav-right .btn-primary{display:none}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .page-hero h1{font-size:30px}
  .alt-row,
  .alt-row:nth-child(even){grid-template-columns:1fr}
  .alt-row:nth-child(even) .alt-media{order:0}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0}
  .stat:nth-child(odd){border-left:0}
  .stat:nth-child(3),
  .stat:nth-child(4){padding-top:0}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero{padding:calc(56px + 8px) 0 48px}
  .page-hero h1{font-size:26px}
  .section-head h2{font-size:24px}
  .hero-sub{font-size:15px}
  .hero-points{gap:20px}
  .hero-point b{font-size:20px}
  .alt-row{padding:16px}
  .alt-index{font-size:26px}
  .alt-body h3{font-size:18px}
  .flow{grid-template-columns:1fr}
  .flow-line{display:none}
  .stat-num{font-size:36px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .float-card{left:12px;right:12px;bottom:12px;padding:12px 14px}
  .faq-q{font-size:15px;padding:12px 16px}
  .faq-a-inner{padding:0 16px 18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand{font-size:16px}
  .stats-grid{grid-template-columns:1fr;gap:24px 0}
  .stat{border-left:0;padding:0 0 0 14px;border-left:3px solid var(--c-100)}
  .stat:first-child{padding-top:0}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .hero-points{gap:16px}
  .hero-point{width:100%;padding-left:0;border-left:0}
  .related-item{padding:16px}
}

/* roulang page: category3 */
:root{
  --c-900:#16305A;
  --c-700:#1F4C87;
  --c-600:#2A66AE;
  --c-100:#E7EFF9;
  --c-050:#F5F8FC;
  --accent:#E1783A;
  --accent-dark:#C9631F;
  --text:#2B3A50;
  --muted:#5D6E86;
  --ph:#93A1B5;
  --border:#E2E9F3;
  --divide:#EDF2F8;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ok:#1E8E6A;
  --warn:#C98A16;
  --err:#C0392B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh:0 2px 8px rgba(22,48,90,.06), 0 12px 28px rgba(22,48,90,.06);
  --sh-hover:0 8px 20px rgba(22,48,90,.10), 0 20px 44px rgba(22,48,90,.08);
  --container:1200px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:#fff;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-900);font-weight:700;line-height:1.3}
h1{font-size:36px;line-height:1.25}
h2{font-size:28px}
h3{font-size:19px;line-height:1.5;font-weight:600}
h4{font-size:16px;line-height:1.5;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-700);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section-alt{background:var(--bg)}
.section-tight{padding:56px 0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(22,48,90,.08)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--nav-h);
}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0;flex:1 1 auto}
.nav-right{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--c-900);
  white-space:nowrap;
}
.brand:hover{color:var(--c-700)}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--c-700),var(--c-600));
  color:#fff;
  display:grid;place-items:center;
  font-size:15px;
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:var(--nav-h);
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:16px;
  width:20px;
  height:2px;
  background:var(--c-700);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--c-700)}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-links a.active{color:var(--c-700);font-weight:600}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-search{display:flex;align-items:center;gap:8px}
.search-input{
  width:0;
  height:40px;
  padding:0;
  border:1px solid rgba(31,76,135,.3);
  border-radius:var(--r-sm);
  background:#fff;
  opacity:0;
  pointer-events:none;
  transition:width .24s ease,opacity .2s ease,padding .24s ease;
  font-size:14px;
}
.search-input::placeholder{color:var(--ph)}
.nav-search.open .search-input{width:240px;padding:0 12px;opacity:1;pointer-events:auto}
.search-input:focus{outline:none;border-color:var(--c-700);box-shadow:0 0 0 3px rgba(31,76,135,.12)}
.search-btn{
  width:36px;height:36px;
  border-radius:50%;
  border:0;
  background:var(--c-100);
  color:var(--c-700);
  display:grid;place-items:center;
  font-size:14px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.search-btn:hover{background:var(--c-700);color:#fff}
.search-btn:active{transform:translateY(1px)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-700);color:#fff}
.btn-primary:hover{background:var(--c-600);color:#fff;box-shadow:0 8px 20px rgba(31,76,135,.22)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;border-color:#C9D6E8;color:var(--c-700)}
.btn-outline:hover{background:var(--c-100);border-color:var(--c-700);color:var(--c-700)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;box-shadow:0 8px 20px rgba(225,120,58,.26)}
.btn-accent:active{transform:translateY(1px)}
.btn[disabled],.btn.disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}
.burger{
  display:none;
  width:40px;height:40px;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#fff;
  color:var(--c-700);
  font-size:16px;
}
.burger:hover{background:var(--c-100)}
.nav-mask{
  position:fixed;inset:0;
  background:rgba(22,48,90,.45);
  opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
  z-index:90;
}
.nav-mask.show{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:280px;
  max-width:86vw;
  height:100%;
  background:#fff;
  box-shadow:-12px 0 32px rgba(22,48,90,.14);
  transform:translateX(100%);
  transition:transform .26s ease;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding:18px 0 24px;
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:0 18px 16px;border-bottom:1px solid var(--border);
}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:0;
  background:var(--c-100);color:var(--c-700);display:grid;place-items:center;
}
.drawer-close:hover{background:var(--c-700);color:#fff}
.drawer-links{display:flex;flex-direction:column;padding:6px 0}
.drawer-links a{
  display:flex;align-items:center;
  height:48px;padding:0 18px;
  border-bottom:1px solid var(--divide);
  color:var(--text);font-size:15px;font-weight:500;
}
.drawer-links a:hover{background:var(--c-050);color:var(--c-700)}
.drawer-links a.active{color:var(--c-700);font-weight:600;background:var(--c-050)}
.drawer-cta{margin:18px 18px 0}

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-100);
  color:var(--c-700);
  font-size:12px;font-weight:600;
  letter-spacing:.02em;
}
.eyebrow-accent{background:rgba(225,120,58,.12);color:var(--accent-dark)}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  background:var(--c-100);
  color:var(--c-700);
  font-size:12px;font-weight:600;
}
.badge-outline{background:transparent;border:1px solid rgba(225,120,58,.5);color:var(--accent-dark)}
.sec-head{max-width:760px;margin-bottom:28px}
.sec-head h2{position:relative;padding-bottom:14px}
.sec-head h2::after{
  content:"";position:absolute;left:0;bottom:0;
  width:24px;height:3px;border-radius:2px;background:var(--c-700);
}
.sec-sub{margin-top:14px;font-size:15px;color:var(--muted)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-700);
}
.link-arrow i{transition:transform .18s ease}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 页面头 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--c-700)}
.breadcrumb .sep{color:#B9C6D8}
.breadcrumb .cur{color:var(--c-700);font-weight:600}
.page-head{padding:9px 0 58px;background:linear-gradient(180deg,#FFFFFF 0%,var(--c-050) 100%)}
.page-head-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  margin-top:28px;
}
.page-head-copy h1{margin-top:16px;max-width:15em}
.page-head-copy .lead{margin-top:16px;font-size:16px;color:var(--muted);max-width:34em}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.anchor-link{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--border);
  color:var(--c-700);
  font-size:14px;font-weight:600;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.anchor-link:hover{border-color:var(--c-700);box-shadow:var(--sh);color:var(--c-700);transform:translateY(-2px)}
.page-head-media{position:relative}
.media-frame{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--sh);
  background:var(--c-100);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  background:rgba(31,76,135,.12);
  pointer-events:none;
}
.media-frame .dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.08;
  pointer-events:none;
}
.media-card{
  position:absolute;
  left:16px;bottom:16px;right:16px;
  background:#fff;
  border-radius:var(--r-md);
  box-shadow:var(--sh-hover);
  padding:16px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.media-card strong{font-size:15px;color:var(--c-900);display:block}
.media-card span{font-size:13px;color:var(--muted)}
.media-tags{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 步骤流程 ---------- */
.step-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
  margin-top:12px;
}
.step-track::before{
  content:"";
  position:absolute;
  top:22px;left:24px;right:24px;
  height:1px;
  background:var(--border);
}
.step-item{position:relative;padding-top:56px}
.step-num{
  position:absolute;top:0;left:0;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--c-100);
  color:var(--c-700);
  display:grid;place-items:center;
  font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  border:1px solid #D3E1F3;
}
.step-item h3{margin-bottom:8px;font-size:17px}
.step-item p{font-size:15px;color:var(--muted)}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.prep-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3E1F3}
.prep-card:hover h3{color:var(--c-700)}
.prep-icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-050);
  border:1px solid var(--border);
  color:var(--c-700);
  display:grid;place-items:center;
  font-size:16px;
  margin-bottom:14px;
}
.prep-card h3{margin-bottom:8px;font-size:18px}
.prep-card p{font-size:15px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  position:relative;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;background:var(--c-700);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .22s ease;
}
.faq-item:hover{border-color:#D3E1F3}
.faq-item.is-open{border-color:#C9D6E8;box-shadow:var(--sh)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:10px 20px;
  border:0;background:none;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--c-900);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-700)}
.faq-icon{
  flex:0 0 auto;
  width:24px;height:24px;
  border-radius:50%;
  background:var(--c-100);
  color:var(--c-700);
  display:grid;place-items:center;
  font-size:11px;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--c-700);color:#fff}
.faq-a{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-a[hidden]{display:none}

/* ---------- 对照表 ---------- */
.cmp-wrap{
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  background:#fff;
  overflow:hidden;
  box-shadow:var(--sh);
}
table.cmp{width:100%;border-collapse:collapse}
.cmp th,.cmp td{
  padding:14px 18px;
  text-align:left;
  font-size:15px;
  border-bottom:1px solid var(--divide);
  vertical-align:top;
}
.cmp thead th{
  background:var(--c-100);
  color:var(--c-900);
  font-size:14px;
  font-weight:600;
  border-bottom:1px solid #D3E1F3;
}
.cmp tbody tr:hover{background:#FAFCFF}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td:first-child{color:var(--c-900);font-weight:600}

/* ---------- 相关分类 ---------- */
.rel-links{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-item{
  display:flex;align-items:center;gap:14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:18px 20px;
  color:var(--text);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D3E1F3;color:var(--text)}
.rel-item i{margin-left:auto;color:var(--c-700);transition:transform .18s ease}
.rel-item:hover i{transform:translateX(3px);color:var(--accent)}
.rel-label{font-size:16px;font-weight:600;color:var(--c-900)}
.rel-desc{display:block;font-size:13px;color:var(--muted)}
.rel-item.active{border-color:var(--c-700);box-shadow:var(--sh)}
.rel-item.active .rel-label{color:var(--c-700)}

/* ---------- CTA / 表单 ---------- */
.cta-panel{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:36px;
  background:var(--c-050);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:40px;
}
.cta-copy h2{margin-top:14px}
.cta-copy p{margin-top:14px;font-size:15px;color:var(--muted)}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.cta-points i{color:var(--c-700);margin-top:5px}
.form-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh);
  padding:26px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:var(--muted)}
.field input,.field textarea{
  height:44px;
  padding:0 14px;
  border:1px solid var(--border);
  border-radius:var(--r-sm);
  background:#fff;
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ph)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-700);
  box-shadow:0 0 0 3px rgba(31,76,135,.12);
}
.field.full{grid-column:1 / -1}
.form-actions{margin-top:20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-hint{font-size:13px;color:var(--muted)}
.form-note{
  margin-top:16px;
  display:none;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:rgba(30,142,106,.1);
  color:var(--ok);
  font-size:14px;
}
.form-note.show{display:flex}
.form-note i{font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:8px;
  background:var(--c-900);
  color:#C7D6EC;
  padding:64px 0 0;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;inset:0 0 auto 0;height:220px;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:30px 30px;
  opacity:.04;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:#fff;
  margin-bottom:16px;
}
.footer-about{font-size:14px;line-height:1.85;color:#9FB6D4;max-width:32em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#9FB6D4}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px}
.footer-col p{font-size:14px;color:#9FB6D4;margin-bottom:8px}
.footer-bottom{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8FA7C6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .nav-links{gap:22px}
  .rel-links{grid-template-columns:1fr}
}
@media (max-width:1023px){
  .nav-links,.nav-search{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .nav-right .btn{display:none}
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .page-head-copy h1{max-width:none}
  .media-frame{aspect-ratio:16/9}
  .step-track{grid-template-columns:repeat(2,1fr);gap:28px}
  .step-track::before{display:none}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  h1{font-size:27px}
  h2{font-size:22px}
  h3{font-size:17px}
  .page-head{padding:6px 0 44px}
  .page-head-copy .lead{font-size:15px}
  .step-track{grid-template-columns:1fr;gap:26px}
  .prep-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .faq-q{font-size:15px;padding:10px 16px}
  .faq-a{padding:0 16px 18px;font-size:14.5px}
  .media-card{left:12px;right:12px;bottom:12px;padding:12px 14px;flex-direction:column;align-items:flex-start}
  .cmp-wrap{border:0;background:transparent;box-shadow:none;border-radius:0}
  table.cmp{display:block}
  .cmp thead{display:none}
  .cmp tbody{display:block}
  .cmp tr{
    display:block;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-md);
    padding:6px 4px;
    margin-bottom:14px;
    box-shadow:var(--sh);
  }
  .cmp td{
    display:flex;
    gap:12px;
    border-bottom:1px dashed var(--divide);
    padding:10px 14px;
    font-size:14.5px;
  }
  .cmp td:last-child{border-bottom:0}
  .cmp td::before{
    content:attr(data-label);
    flex:0 0 76px;
    color:var(--c-700);
    font-weight:600;
    font-size:13px;
    padding-top:2px;
  }
  .cta-panel{padding:22px;gap:24px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:479px){
  .anchor-row{gap:8px}
  .anchor-link{height:34px;padding:0 12px;font-size:13px}
  .btn{width:100%}
  .nav-right .btn{width:auto}
  .media-card{position:static;margin-top:12px;box-shadow:var(--sh)}
}