/* roulang page: index */
:root{
  --primary:#1D4E89;
  --primary-dark:#143A69;
  --primary-soft:#E8F0FA;
  --secondary:#12B39A;
  --accent:#F5A524;
  --bg:#F6F8FB;
  --line:#E6EAF2;
  --ink:#1F2937;
  --muted:#5B6B7F;
  --faint:#8A97A8;
  --card-shadow:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
  --card-shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
  --radius-card:16px;
  --radius-ctl:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{letter-spacing:-0.01em;font-weight:700;margin:0}
p{margin:0}
:focus-visible{outline:3px solid rgba(29,78,137,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media(min-width:1280px){.container{padding-left:40px;padding-right:40px}}

/* 双层导航 */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,42,76,.06)}
.nav-top{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:800;white-space:nowrap;letter-spacing:-0.01em}
.brand .b-main{color:var(--primary)}
.brand .b-sub{color:var(--secondary)}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex:none}
.nav-search{flex:1;max-width:420px;display:none}
@media(min-width:1024px){.nav-search{display:block}}
.nav-search form{position:relative}
.nav-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid transparent;background:#F2F5FA;
  padding:0 44px 0 18px;font-size:14px;transition:all .2s ease-out;
}
.nav-search input::placeholder{color:var(--faint)}
.nav-search input:focus{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,137,.18);outline:none}
.nav-search .s-icon{position:absolute;right:6px;top:4px;width:32px;height:32px;border:0;border-radius:999px;background:transparent;color:var(--faint);display:flex;align-items:center;justify-content:center;cursor:pointer}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

.channel-wrap{position:relative;border-top:1px solid #EDF1F7}
.channel-wrap::before,.channel-wrap::after{content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;z-index:2}
.channel-wrap::before{left:0;background:linear-gradient(to right,#fff,rgba(255,255,255,0))}
.channel-wrap::after{right:0;background:linear-gradient(to left,#fff,rgba(255,255,255,0))}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:none;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid #E2E8F0;background:transparent;color:#4A5568;font-size:14px;white-space:nowrap;
  transition:all .2s ease-out;
}
.pill:hover{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary)}
.pill[aria-current="page"]{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;
  border-radius:var(--radius-ctl);font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .2s ease-out;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:#fff;color:var(--primary);border-color:#C9D8E9}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{background:#F2F5FA;color:var(--primary);border-color:transparent}
.btn-ghost:hover{background:var(--primary-soft)}
.btn:disabled{background:#C9D2DE;color:#fff;box-shadow:none;cursor:not-allowed;transform:none}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}

.text-link{color:var(--secondary);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease-out}
.text-link:hover{color:var(--primary)}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--card-shadow);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.card-hover:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-2px)}
.card-hover:hover .card-title{color:var(--primary)}
.card-title{transition:color .2s ease-out}
.thumb{overflow:hidden;border-radius:12px}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.card-hover:hover .thumb img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:#FEF3E0;color:#B5730B}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* 指标 */
.stat-num{font-variant-numeric:tabular-nums;font-size:38px;line-height:1.1;font-weight:700;color:var(--primary)}
.stat-num.accent{color:var(--accent)}

/* 进度条 */
.bar{height:6px;border-radius:999px;background:#EDF1F7;overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px;background:var(--primary)}
.bar span.green{background:var(--secondary)}

/* 图标块 */
.icon-box{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex:none}
.icon-primary{background:var(--primary-soft);color:var(--primary)}
.icon-secondary{background:#E4F7F3;color:var(--secondary)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:background .2s ease-out}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--primary);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .plus{flex:none;width:24px;height:24px;color:var(--primary);transition:transform .2s ease-out}
.faq-item[open]{background:#F8FAFD}
.faq-item[open] .plus{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.8}

/* 表单 */
.field-label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.field{
  width:100%;height:48px;border:1px solid #DCE3EE;border-radius:var(--radius-ctl);background:#fff;
  padding:0 14px;font-size:15px;transition:all .2s ease-out;
}
textarea.field{height:auto;padding:12px 14px;line-height:1.7;resize:vertical}
.field:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,137,.18);outline:none}
.field::placeholder{color:var(--faint)}

/* 页脚 */
.site-footer{background:#0F2A47;color:#C7D3E3;margin-top:88px}
.site-footer a{color:#C7D3E3;transition:color .2s ease-out}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}

/* Hero 装饰 */
.hero-shot{position:relative}
.hero-shot::before{
  content:"";position:absolute;left:-14px;top:-14px;right:14px;bottom:14px;border-radius:16px;
  background:rgba(232,240,250,.75);z-index:0;
}
.hero-shot img{position:relative;z-index:1}

@media(max-width:640px){
  .brand{font-size:16px}
  .stat-num{font-size:30px}
}

/* roulang page: article */
:root{
  --primary:#1D4E89;
  --primary-dark:#143A69;
  --primary-light:#E8F0FA;
  --secondary:#12B39A;
  --accent:#F5A524;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --line:#E6EAF2;
  --ink:#1F2937;
  --muted:#5B6B7F;
  --weak:#8A97A8;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
  --shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
  --t:all .2s ease-out;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.page{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:#12203A}
p{margin:0 0 1em}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0}

body .container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){ body .container{padding-left:32px;padding-right:32px} }
@media (min-width:1280px){ body .container{padding-left:40px;padding-right:40px} }

/* ---------- 顶部双层导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.nav-top{
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#12203A;
  white-space:nowrap;
}
.brand-mark{
  flex:0 0 32px;
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:800;
}
.b-main{color:var(--primary)}
.b-sub{color:var(--secondary)}
.nav-search{flex:1;display:none;max-width:420px;margin:0 auto}
@media (min-width:768px){ .nav-search{display:block} }
.nav-search form{position:relative}
.nav-search input{
  width:100%;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:#F2F5FA;
  padding:0 46px 0 18px;
  font-size:14px;
  outline:none;
  transition:var(--t);
}
.nav-search input::placeholder{color:var(--weak)}
.nav-search input:focus{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(29,78,137,.18);
}
.s-icon{
  position:absolute;
  right:5px;
  top:50%;
  transform:translateY(-50%);
  width:32px;
  height:32px;
  border:0;
  border-radius:999px;
  background:transparent;
  color:var(--muted);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:var(--t);
}
.s-icon:hover{background:var(--primary-light);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto}

.channel-wrap{border-top:1px solid #EDF1F7;background:#fff}
.channel-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  padding-top:10px;
  padding-bottom:10px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid #E2E8F0;
  font-size:14px;
  color:#4A5568;
  white-space:nowrap;
  transition:var(--t);
}
.pill:hover{background:var(--primary-light);border-color:#D3E2F5;color:var(--primary)}
.pill[aria-current="page"]{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:var(--t);
}
.btn-sm{height:38px;min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(29,78,137,.85)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-primary:active{transform:none;filter:brightness(.96)}
.btn-ghost{background:#fff;border-color:#DCE3EE;color:var(--primary)}
.btn-ghost:hover{border-color:var(--secondary);color:var(--secondary);background:#F4FBF9}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--primary-light);transform:translateY(-1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35)}
.btn:disabled{background:#C9D2DE;color:#fff;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak)}
.breadcrumb a{color:var(--muted);transition:var(--t)}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb .sep{color:#C4CEDC}
.breadcrumb .cur{color:var(--weak)}

/* ---------- 文章主体 ---------- */
.article-shell{padding:20px 0 56px}
@media (min-width:1024px){ .article-shell{padding:28px 0 88px} }
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  padding:24px;
}
@media (min-width:768px){ .article-card{padding:40px} }
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--primary-light);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
}
.article-title{
  font-size:clamp(28px,4vw,40px);
  line-height:1.28;
  margin-top:16px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 18px;
  margin-top:16px;
  font-size:13px;
  color:var(--weak);
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.article-meta .dot{width:4px;height:4px;border-radius:999px;background:#C4CEDC;display:inline-block}
.article-cover{
  margin-top:24px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

.prose{
  max-width:760px;
  margin:0 auto;
  padding-top:32px;
  line-height:1.9;
  font-size:16px;
  color:var(--ink);
  word-break:break-word;
}
.prose h2{font-size:24px;line-height:1.4;margin:40px 0 16px}
.prose h3{font-size:19px;line-height:1.5;margin:28px 0 12px}
.prose h4{font-size:17px;margin:22px 0 10px}
.prose p{margin:0 0 1.1em}
.prose ul{list-style:disc;padding-left:1.4em;margin:0 0 1.1em}
.prose ol{list-style:decimal;padding-left:1.4em;margin:0 0 1.1em}
.prose li{margin:6px 0}
.prose a{color:var(--secondary);text-decoration:underline;text-underline-offset:2px;transition:var(--t)}
.prose a:hover{color:var(--primary)}
.prose img{border-radius:var(--radius-md);margin:20px auto}
.prose figure{margin:20px 0}
.prose figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px}
.prose blockquote{
  margin:20px 0;
  padding:14px 18px;
  background:#F8FAFD;
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--muted);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  margin:20px 0;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.prose th{
  background:var(--primary-light);
  color:var(--primary);
  text-align:left;
  font-weight:700;
  padding:10px 12px;
  border:1px solid var(--line);
}
.prose td{padding:10px 12px;border:1px solid var(--line)}
.prose code{background:#F2F5FA;padding:2px 6px;border-radius:6px;font-size:14px}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{
  text-align:center;
  padding:56px 16px;
  background:#F8FAFD;
  border:1px dashed #D8E2EF;
  border-radius:var(--radius-lg);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14px;margin-bottom:20px}
.empty-state .btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

.to-top-wrap{max-width:760px;margin:36px auto 0;display:flex;justify-content:center}

/* ---------- 相关推荐 ---------- */
.rec-section{padding:0 0 56px}
@media (min-width:1024px){ .rec-section{padding:8px 0 88px} }
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:24px;
}
.section-title{font-size:28px;line-height:1.35}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap;transition:var(--t)}
.link-more:hover{color:var(--secondary)}

.rec-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){ .rec-grid{grid-template-columns:1fr 1fr} }
@media (min-width:1024px){ .rec-grid{grid-template-columns:repeat(4,1fr)} }
.card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:var(--t);
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#EEF3FA}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px}
.card-title{font-size:17px;line-height:1.5;transition:var(--t)}
.card:hover .card-title{color:var(--primary)}
.card-text{font-size:14px;line-height:1.7;color:var(--muted);margin:8px 0 0}
.card-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--weak);margin-top:14px}

/* ---------- 底部转化条 ---------- */
.cta-band{
  background:#0F2A47;
  border-radius:var(--radius-lg);
  padding:32px 24px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px}
}
.cta-band h2{color:#fff;font-size:23px;line-height:1.4}
.cta-band p{color:#C7D3E3;font-size:14px;margin:8px 0 0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2A47;color:#C7D3E3;margin-top:24px}
.site-footer a{color:#C7D3E3;transition:var(--t)}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
#backTop:hover{color:#fff}

@media (max-width:519px){
  .article-card{padding:20px}
  .section-title{font-size:23px}
  .cta-band{padding:26px 20px}
  .cta-band h2{font-size:20px}
}

/* roulang page: category1 */
:root{
    --primary:#1D4E89;
    --primary-dark:#143A69;
    --primary-soft:#E8F0FA;
    --secondary:#12B39A;
    --accent:#F5A524;
    --bg:#F6F8FB;
    --card:#FFFFFF;
    --line:#E6EAF2;
    --ink:#1F2937;
    --muted:#5B6B7F;
    --weak:#8A97A8;
    --disabled:#C9D2DE;
    --radius-card:16px;
    --radius-input:10px;
    --radius-img:12px;
    --shadow-card:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
    --shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
  }

  *{box-sizing:border-box;}

  html{scroll-padding-top:132px;}

  html body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,h4{letter-spacing:-0.01em;font-weight:700;margin:0;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  img{display:block;max-width:100%;}
  a{color:inherit;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){ .container{padding-left:32px;padding-right:32px;} }
  @media (min-width:1280px){ .container{padding-left:40px;padding-right:40px;} }

  /* ---------- 双层导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .site-header.is-scrolled{ box-shadow:0 4px 16px rgba(16,42,76,.06); }

  .nav-top{
    display:flex;
    align-items:center;
    gap:16px;
    height:64px;
  }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    font-size:17px;
    font-weight:800;
    white-space:nowrap;
  }
  .brand-mark{
    width:32px;
    height:32px;
    border-radius:10px;
    background:var(--primary);
    color:#fff;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:15px;
    font-weight:800;
    letter-spacing:0;
    flex:0 0 auto;
  }
  .brand .b-main{color:var(--primary);}
  .brand .b-sub{color:var(--secondary);}

  .nav-search{flex:1 1 auto;display:flex;justify-content:center;}
  .nav-search form{position:relative;width:100%;max-width:420px;}
  .nav-search input{
    width:100%;
    height:40px;
    border-radius:999px;
    border:1px solid transparent;
    background:#F2F5FA;
    color:var(--ink);
    padding:0 46px 0 18px;
    font-size:14px;
    outline:none;
    transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .nav-search input::placeholder{color:var(--weak);}
  .nav-search input:focus{
    background:#fff;
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(29,78,137,.18);
  }
  .s-icon{
    position:absolute;
    right:5px;
    top:50%;
    transform:translateY(-50%);
    width:32px;
    height:32px;
    border:0;
    border-radius:999px;
    background:transparent;
    color:var(--muted);
    display:grid;
    place-items:center;
    cursor:pointer;
    transition:color .2s ease-out,background .2s ease-out;
  }
  .s-icon:hover{color:var(--primary);background:var(--primary-soft);}

  .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}

  @media (max-width:767px){
    .nav-search{flex:0 0 auto;}
    .nav-search form{width:40px;max-width:40px;height:40px;border-radius:999px;background:#F2F5FA;}
    .nav-search input{display:none;}
    .nav-search .s-icon{left:50%;right:auto;transform:translate(-50%,-50%);}
  }

  /* 按钮 */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 20px;
    border-radius:var(--radius-input);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1;
    text-decoration:none;
    cursor:pointer;
    transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
  }
  .btn-sm{height:40px;padding:0 16px;font-size:14px;}
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{background:#fff;color:var(--primary);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--secondary);color:var(--secondary);background:#F6FCFB;}
  .btn-ghost:active{transform:translateY(0);filter:brightness(.98);}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35);}
  .btn[disabled],.btn.is-disabled{background:var(--disabled);color:#fff;box-shadow:none;border-color:transparent;cursor:not-allowed;transform:none;}

  /* 频道行 */
  .channel-wrap{background:#fff;border-bottom:1px solid #EDF1F7;}
  .channel-scroll{
    display:flex;
    align-items:center;
    gap:8px;
    height:48px;
    overflow-x:auto;
    white-space:nowrap;
    scrollbar-width:none;
    -ms-overflow-style:none;
  }
  .channel-scroll::-webkit-scrollbar{display:none;}
  .pill{
    display:inline-flex;
    align-items:center;
    height:32px;
    padding:0 14px;
    border-radius:999px;
    border:1px solid #E2E8F0;
    color:#4A5568;
    font-size:14px;
    text-decoration:none;
    flex:0 0 auto;
    transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  }
  .pill:hover{background:var(--primary-soft);color:var(--primary);}
  .pill[aria-current="page"]{background:var(--primary);border-color:var(--primary);color:#fff;}
  .pill:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35);}

  /* 通用卡片 */
  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  }
  .card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#DCE6F3;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:24px;
    padding:0 10px;
    border-radius:999px;
    background:var(--primary-soft);
    color:var(--primary);
    font-size:12px;
    font-weight:700;
    letter-spacing:.04em;
  }
  .badge-accent{background:#FDF3E2;color:#9A6412;}

  .thumb{overflow:hidden;border-radius:var(--radius-img);}
  .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
  .card-hover:hover .thumb img{transform:scale(1.03);}

  .ico{
    width:44px;
    height:44px;
    border-radius:12px;
    display:grid;
    place-items:center;
    background:var(--primary-soft);
    color:var(--primary);
    flex:0 0 auto;
  }
  .ico-green{background:#E6F7F4;color:var(--secondary);}

  .tick{
    display:flex;
    gap:10px;
    align-items:flex-start;
    color:var(--muted);
    font-size:14px;
    line-height:1.7;
  }
  .tick::before{
    content:"";
    margin-top:8px;
    width:7px;
    height:7px;
    border-radius:50%;
    background:var(--secondary);
    flex:0 0 auto;
  }

  /* 侧栏 */
  .side-sticky{position:static;}
  @media (min-width:1024px){
    .side-sticky{position:sticky;top:132px;}
  }

  .side-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:11px 12px;
    border-radius:10px;
    color:var(--muted);
    font-size:14px;
    text-decoration:none;
    transition:background-color .2s ease-out,color .2s ease-out;
  }
  .side-link:hover{background:var(--primary-soft);color:var(--primary);}
  .side-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.28);}

  .prose-lead p + p{margin-top:14px;}

  /* FAQ */
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    overflow:hidden;
    transition:background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .faq-item + .faq-item{margin-top:14px;}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 20px;
    font-size:16.5px;
    font-weight:600;
    color:var(--primary);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.28);}
  .faq-plus{
    flex:0 0 auto;
    width:22px;
    height:22px;
    display:grid;
    place-items:center;
    color:var(--primary);
    font-size:20px;
    line-height:1;
    transition:transform .2s ease-out;
  }
  .faq-item[open]{background:#F8FAFD;box-shadow:var(--shadow-card);}
  .faq-item[open] .faq-plus{transform:rotate(45deg);}
  .faq-body{padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.85;}

  /* 链接 */
  .link-sec{color:var(--secondary);text-decoration:underline;text-underline-offset:2px;transition:color .2s ease-out;}
  .link-sec:hover{color:var(--primary);}

  /* 页脚 */
  .site-footer{background:#0F2A47;color:#C7D3E3;}
  .site-footer a{color:#C7D3E3;text-decoration:none;transition:color .2s ease-out;}
  .site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .site-footer a:focus-visible{outline:none;color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35);border-radius:6px;}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);}

  .sr-only{
    position:absolute !important;
    width:1px;height:1px;
    padding:0;margin:-1px;
    overflow:hidden;
    clip:rect(0,0,0,0);
    white-space:nowrap;
    border:0;
  }

/* roulang page: category2 */
:root{
  --primary:#1D4E89;
  --primary-deep:#143A69;
  --primary-soft:#E8F0FA;
  --secondary:#12B39A;
  --accent:#F5A524;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EAF2;
  --line-soft:#EDF1F7;
  --text:#1F2937;
  --text-sub:#5B6B7F;
  --text-weak:#8A97A8;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
  --shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:normal;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.35}
h1{font-size:clamp(28px,4vw,40px);line-height:1.28}
h2{font-size:clamp(22px,2.6vw,28px)}
h3{font-size:20px;line-height:1.5}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{padding-left:40px;padding-right:40px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,42,76,.06)}
.nav-top{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--primary);letter-spacing:-0.01em;white-space:nowrap}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;flex:0 0 auto}
.b-sub{color:var(--secondary)}
.nav-search{display:none;flex:1 1 auto;max-width:420px;margin:0 auto}
@media (min-width:1024px){.nav-search{display:block}}
.nav-search form{position:relative}
.nav-search input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  background:#F2F5FA;border:1px solid transparent;padding:0 46px 0 18px;font-size:14px;
  transition:all .2s ease-out;
}
.nav-search input::placeholder{color:var(--text-weak)}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,137,.18)}
.s-icon{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:34px;height:34px;border:0;background:transparent;border-radius:var(--radius-pill);display:flex;align-items:center;justify-content:center;color:var(--text-sub);cursor:pointer;transition:all .2s ease-out}
.s-icon:hover{color:var(--primary);background:var(--primary-soft)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

.channel-wrap{position:relative;background:#fff;border-bottom:1px solid var(--line-soft)}
.channel-wrap::before,.channel-wrap::after{content:"";position:absolute;top:0;bottom:0;width:16px;pointer-events:none;z-index:2}
.channel-wrap::before{left:0;background:linear-gradient(90deg,#fff,rgba(255,255,255,0))}
.channel-wrap::after{right:0;background:linear-gradient(270deg,#fff,rgba(255,255,255,0))}
.channel-scroll{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--radius-pill);font-size:14px;color:#4A5568;background:transparent;
  border:1px solid #E2E8F0;white-space:nowrap;transition:all .2s ease-out;
}
.pill:hover{background:var(--primary-soft);color:var(--primary);border-color:#C7DBF4}
.pill[aria-current="page"]{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .2s ease-out;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;color:#4A5568;border-color:#E2E8F0}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35)}
.btn[disabled]{background:#C9D2DE;color:#fff;border-color:#C9D2DE;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-pill);padding:5px 12px;display:inline-block}
.muted{color:var(--text-sub);font-size:14px;line-height:1.6}
.weak{color:var(--text-weak);font-size:12px}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);transition:all .2s ease-out;
}
.card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.card-hover:hover .card-title{color:var(--primary)}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-weak);padding-top:20px}
.crumb a{color:var(--text-sub);transition:color .2s ease-out}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#B4BECC}

/* ---------- Hero ---------- */
.hero-grid{display:grid;gap:32px;align-items:center;padding:32px 0 8px}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px;padding:40px 0 8px}}
.hero-media{position:relative;border-radius:var(--radius-pic);overflow:hidden}
.hero-media::after{content:"";position:absolute;inset:0;border-radius:var(--radius-pic);box-shadow:inset 0 0 0 1px rgba(16,42,76,.06)}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius-pic)}
.hero-blocks{position:absolute;left:-14px;bottom:-14px;width:110px;height:110px;background:var(--primary-soft);border-radius:var(--radius-card);z-index:-1}
.trust{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-sub)}
.trust-item svg{color:var(--secondary);flex:0 0 auto}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--primary);background:var(--primary-soft);border-radius:var(--radius-pill);padding:5px 12px}

/* ---------- Steps ---------- */
.steps{display:flex;gap:0;position:relative;padding-top:6px}
.step{flex:1 1 0;min-width:0;text-align:center;position:relative;padding:0 8px}
.step::after{content:"";position:absolute;top:20px;left:50%;width:100%;height:2px;background:var(--line);z-index:0}
.step:last-child::after{display:none}
.step-dot{
  position:relative;z-index:1;width:42px;height:42px;margin:0 auto 14px;border-radius:var(--radius-pill);
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--line);color:var(--primary);
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
}
.step.is-key .step-dot{background:var(--primary);border-color:var(--primary);color:#fff}
.step.is-alt .step-dot{background:var(--secondary);border-color:var(--secondary);color:#fff}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--text-sub);line-height:1.7}
@media (max-width:900px){
  .steps{flex-direction:column;gap:20px}
  .step{display:flex;gap:16px;text-align:left;padding:0}
  .step::after{display:none}
  .step-dot{margin:0;flex:0 0 auto}
}

/* ---------- Stats ---------- */
.stat-bar{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px;border-top:2px solid var(--line-soft)}
.stat-num{font-size:clamp(32px,4vw,42px);font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-num.accent{color:var(--accent)}
.stat-num.secondary{color:var(--secondary)}
.stat-label{font-size:14px;color:var(--text-sub);margin-top:8px}
.stat-note{font-size:12px;color:var(--secondary);margin-top:6px}
@media (max-width:640px){
  .stat-bar{grid-template-columns:1fr 1fr}
  .stat-bar .stat:last-child{grid-column:span 2}
}

/* ---------- Entry cards ---------- */
.entry-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.entry-card .thumb{overflow:hidden;border-radius:var(--radius-card) var(--radius-card) 0 0}
.entry-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease-out}
.entry-card:hover .thumb img{transform:scale(1.03)}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.entry-body .card-title{font-size:19px;transition:color .2s ease-out}
.line-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:12px;color:var(--text-weak)}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--primary-soft);border-radius:var(--radius-card);
  padding:32px 28px;display:grid;gap:24px;align-items:center;
}
@media (min-width:1024px){.cta-panel{grid-template-columns:1fr auto;padding:40px 44px}}
.cta-panel h2{color:var(--primary-deep)}

/* ---------- Footer ---------- */
.site-footer{background:#0F2A47;color:#C7D3E3;margin-top:24px}
.site-footer h3{color:#fff}
.site-footer a{color:#C7D3E3;transition:color .2s ease-out}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.pay-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.pay-badge{font-size:12px;color:#C7D3E3;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-pill);padding:5px 12px}

/* ---------- Utilities ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category3 */
:root{
  --primary:#1D4E89;
  --primary-dark:#143A69;
  --primary-light:#E8F0FA;
  --primary-soft:#F2F5FA;
  --secondary:#12B39A;
  --secondary-soft:#E7F7F4;
  --accent:#F5A524;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --line:#E6EAF2;
  --line-soft:#EDF1F7;
  --ink:#1F2937;
  --ink-2:#5B6B7F;
  --ink-3:#8A97A8;
  --disabled:#B4BECC;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:12px;
  --shadow-card:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
  --shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
  --ring:0 0 0 3px rgba(29,78,137,.18);
  --tr:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:120px;-webkit-text-size-adjust:100%;}
html body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35);border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1280px){.container{padding-left:40px;padding-right:40px;}}

/* ---------- 站点头部 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--tr);}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,42,76,.06);}
.nav-top{display:flex;align-items:center;gap:16px;min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:18px;font-weight:800;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:var(--primary);color:#fff;font-size:15px;font-weight:800;}
.b-main{color:var(--primary);}
.b-sub{color:var(--secondary);}
.nav-search{flex:1 1 auto;max-width:420px;margin:0 auto;}
.nav-search form{position:relative;display:flex;align-items:center;}
.nav-search input{width:100%;height:40px;border-radius:999px;border:1px solid transparent;background:var(--primary-soft);padding:0 46px 0 18px;font-size:14px;outline:none;transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{background:#fff;border-color:var(--primary);box-shadow:var(--ring);}
.s-icon{position:absolute;right:6px;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;color:var(--ink-2);border-radius:999px;cursor:pointer;transition:color var(--tr),background var(--tr);}
.s-icon:hover{color:var(--primary);background:var(--primary-light);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.channel-wrap{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;border:1px solid #E2E8F0;font-size:14px;color:#4A5568;background:transparent;transition:background var(--tr),color var(--tr),border-color var(--tr);}
.pill:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary-light);}
.pill[aria-current="page"]{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-sm);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr),filter var(--tr);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#DCE3EE;}
.btn-ghost:hover{border-color:var(--secondary);color:var(--primary-dark);background:#F8FAFD;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);filter:brightness(.98);}
.btn:disabled{background:#C9D2DE;color:#fff;border-color:#C9D2DE;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 页首区 ---------- */
.page-hero{position:relative;background:#fff;border-bottom:1px solid var(--line);padding:28px 0 44px;overflow:hidden;}
.page-hero::after{content:"";position:absolute;right:-120px;top:-60px;width:420px;height:320px;background:rgba(29,78,137,.04);transform:skewX(-14deg);border-radius:24px;pointer-events:none;}
.page-hero .container{position:relative;z-index:1;}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);}
.crumbs a{transition:color var(--tr);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#C4CEDC;}
.hero-title{font-size:clamp(28px,4vw,40px);line-height:1.28;margin-top:18px;color:var(--ink);max-width:900px;}
.hero-sub{margin-top:14px;font-size:18px;line-height:1.7;color:var(--ink-2);max-width:720px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;font-size:13px;color:var(--ink-2);}
.hero-points li{display:inline-flex;align-items:center;gap:8px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--secondary);flex:0 0 auto;}
.dot.amber{background:var(--accent);}
.dot.blue{background:var(--primary);}

/* ---------- 板块 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.section-tight{padding:40px 0;}
@media (min-width:768px){.section-tight{padding:56px 0;}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.sec-title{font-size:28px;line-height:1.35;color:var(--ink);}
.sec-desc{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:760px;}
.eyebrow{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.06em;}

/* ---------- 卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-card);transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);}
.card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}

/* 概览卡：左文右图 */
.overview{display:grid;grid-template-columns:1fr;gap:0;overflow:hidden;}
@media (min-width:1024px){.overview{grid-template-columns:7fr 5fr;}}
.overview-text{padding:28px 24px;}
@media (min-width:768px){.overview-text{padding:36px 32px;}}
.overview-text h2{font-size:28px;line-height:1.35;margin-top:16px;color:var(--ink);}
.overview-text p{margin-top:16px;font-size:16px;color:var(--ink-2);}
.overview-list{margin-top:22px;display:grid;gap:12px;}
.overview-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.check{flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--secondary-soft);color:var(--secondary);display:inline-flex;align-items:center;justify-content:center;margin-top:4px;}
.overview-media{position:relative;min-height:220px;background:var(--primary-light);}
.overview-media img{width:100%;height:100%;object-fit:cover;min-height:220px;}
@media (min-width:1024px){.overview-media img{min-height:100%;}}

/* ---------- 对照表 ---------- */
.cmp-table{display:none;}
.cmp-cards{display:grid;gap:16px;}
@media (min-width:1024px){
  .cmp-table{display:block;}
  .cmp-cards{display:none;}
}
.cmp-table table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.cmp-table th{background:var(--primary-light);color:var(--primary-dark);text-align:left;font-size:14px;font-weight:700;padding:15px 18px;border-bottom:1px solid var(--line);}
.cmp-table td{padding:16px 18px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line-soft);vertical-align:top;}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody tr{transition:background var(--tr);}
.cmp-table tbody tr:hover{background:#F8FAFD;}
.cmp-table td:first-child{color:var(--ink);font-weight:600;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap;}
.badge-priority{background:#FFF3DF;color:#A0670A;}
.badge-plan{background:var(--primary-light);color:var(--primary);}
.cmp-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-card);}
.cmp-card h3{font-size:17px;color:var(--ink);margin-top:10px;}
.cmp-line{margin-top:12px;font-size:14px;color:var(--ink-2);}
.cmp-line b{color:var(--ink);font-weight:600;}
.cmp-card .badge{margin-top:14px;}

/* ---------- 数据小结 ---------- */
.stats{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.stats{grid-template-columns:repeat(3,1fr);gap:24px;}}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:left;}
.stat-num{font-size:40px;font-weight:700;line-height:1.1;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-num.is-accent{color:var(--accent);}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-2);}
.stat-note{margin-top:6px;font-size:12px;color:var(--ink-3);}

/* ---------- 要点卡（非对称） ---------- */
.steps-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){.steps-grid{grid-template-columns:2fr 1fr;align-items:start;}}
.step-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-card);}
@media (min-width:768px){.step-main{padding:32px;}}
.step-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line);}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-item:first-child{padding-top:0;}
.step-idx{flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--primary-light);color:var(--primary);font-weight:700;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-variant-numeric:tabular-nums;}
.step-item:nth-child(2) .step-idx{background:var(--secondary-soft);color:var(--secondary);}
.step-item:nth-child(3) .step-idx{background:#FFF3DF;color:#A0670A;}
.step-body h3{font-size:18px;color:var(--ink);}
.step-body p{margin-top:8px;font-size:15px;color:var(--ink-2);}
.side-stack{display:grid;gap:24px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-card);transition:box-shadow var(--tr),transform var(--tr);}
.side-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.side-card h3{font-size:18px;color:var(--ink);margin-top:14px;}
.side-card p{margin-top:10px;font-size:14px;color:var(--ink-2);}
.side-card .tagline{margin-top:14px;font-size:13px;font-weight:600;color:var(--primary);}
.ico{width:28px;height:28px;color:var(--primary);}
.ico.teal{color:var(--secondary);}

/* ---------- 相关入口 ---------- */
.entry-list{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.entry-list{grid-template-columns:repeat(2,1fr);gap:24px;}}
.entry{display:flex;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-card);transition:box-shadow var(--tr),transform var(--tr),border-color var(--tr);}
.entry:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D8E3F2;}
.entry h3{font-size:17px;color:var(--ink);transition:color var(--tr);}
.entry:hover h3{color:var(--primary);}
.entry p{margin-top:6px;font-size:14px;color:var(--ink-2);}
.entry-arrow{margin-left:auto;color:var(--ink-3);font-size:18px;line-height:1;transition:transform var(--tr),color var(--tr);}
.entry:hover .entry-arrow{transform:translateX(3px);color:var(--primary);}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2A47;color:#C7D3E3;}
.site-footer a{transition:color var(--tr);}
.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.site-footer h3{letter-spacing:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}

/* ---------- 移动端导航 ---------- */
@media (max-width:767px){
  .nav-top{gap:10px;}
  .brand{font-size:16px;}
  .nav-search{flex:0 0 auto;max-width:none;margin:0;}
  .nav-search form{position:static;}
  .nav-search input{display:none;}
  .s-icon{position:static;width:40px;height:40px;background:var(--primary-soft);color:var(--primary);}
  .hero-sub{font-size:16px;}
}
@media (max-width:520px){
  .hero-cta .btn{width:100%;}
  .stat-num{font-size:36px;}
}

/* roulang page: category4 */
:root{
    --primary:#1D4E89;
    --primary-deep:#143A69;
    --primary-soft:#E8F0FA;
    --secondary:#12B39A;
    --accent:#F5A524;
    --bg:#F6F8FB;
    --card:#FFFFFF;
    --line:#E6EAF2;
    --line-soft:#EDF1F7;
    --ink:#1F2937;
    --muted:#5B6B7F;
    --weak:#8A97A8;
    --radius-card:16px;
    --radius-sm:10px;
    --radius-pill:999px;
    --shadow-card:0 1px 2px rgba(16,42,76,.04), 0 8px 24px -12px rgba(16,42,76,.12);
    --shadow-hover:0 12px 32px -12px rgba(16,42,76,.20);
    --t:200ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:-0.01em;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink)}
  h1{font-size:clamp(28px,4vw,40px);line-height:1.28}
  h2{font-size:28px;line-height:1.35}
  h3{font-size:20px;line-height:1.5}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media(min-width:768px){.container{padding-left:32px;padding-right:32px}}
  @media(min-width:1280px){.container{padding-left:40px;padding-right:40px}}

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
  .nav-top{display:flex;align-items:center;gap:16px;min-height:64px;padding:8px 0}
  .brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;white-space:nowrap}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#1D4E89,#12B39A);
    color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;flex:0 0 auto;
  }
  .b-main{color:var(--primary)}
  .b-sub{color:var(--secondary)}
  .brand:hover .b-main{color:var(--primary-deep)}
  .nav-search{flex:1 1 auto;max-width:420px;min-width:0}
  .nav-search form{
    position:relative;display:flex;align-items:center;background:#F2F5FA;
    border:1px solid transparent;border-radius:var(--radius-pill);height:40px;padding:0 6px 0 16px;
    transition:background-color var(--t),border-color var(--t),box-shadow var(--t);
  }
  .nav-search form:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,137,.18)}
  .nav-search input{
    flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px;
  }
  .nav-search input::placeholder{color:var(--weak)}
  .s-icon{
    width:32px;height:32px;border:0;background:transparent;color:var(--muted);cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-pill);
    transition:background-color var(--t),color var(--t);
  }
  .s-icon:hover{background:var(--primary-soft);color:var(--primary)}
  .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    min-height:44px;padding:0 20px;border-radius:var(--radius-sm);border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;transition:all var(--t);text-align:center;
  }
  .btn-sm{min-height:38px;padding:0 16px;font-size:14px}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px rgba(16,42,76,.08)}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96)}
  .btn-ghost{background:transparent;color:var(--primary);border-color:#CBD9EA}
  .btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:none;box-shadow:0 0 0 3px rgba(29,78,137,.35);border-radius:var(--radius-sm);
  }

  .channel-wrap{background:#fff;border-bottom:1px solid var(--line-soft)}
  .channel-scroll{
    display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
    position:relative;
  }
  .channel-scroll::-webkit-scrollbar{display:none}
  .pill{
    flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;
    font-size:14px;color:#4A5568;background:transparent;border:1px solid #E2E8F0;border-radius:var(--radius-pill);
    transition:all var(--t);white-space:nowrap;
  }
  .pill:hover{background:var(--primary-soft);border-color:#C9DEF5;color:var(--primary)}
  .pill[aria-current="page"]{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

  /* ---------- 通用 ---------- */
  .section{padding:56px 0}
  @media(min-width:1024px){.section{padding:88px 0}}
  .section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:32px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
    font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--primary);
    background:var(--primary-soft);border-radius:var(--radius-pill);padding:5px 12px;
  }
  .lead{font-size:16px;color:var(--muted);max-width:760px}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);transition:box-shadow var(--t),transform var(--t),border-color var(--t);
  }
  .card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--radius-pill);
    font-size:12px;font-weight:700;letter-spacing:.04em;background:var(--primary-soft);color:var(--primary);
  }
  .badge-accent{background:#FDF1DC;color:#A9670A}
  .badge-line{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:600}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--weak);padding-top:20px}
  .crumb a{color:var(--muted)}
  .crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
  .divider{height:1px;background:var(--line);border:0;margin:0}
  .link-inline{color:var(--secondary);text-decoration:underline;text-underline-offset:3px;font-weight:600}
  .link-inline:hover{color:var(--primary)}

  /* ---------- 首屏 ---------- */
  .hero{padding:32px 0 0}
  .hero-grid{display:grid;gap:28px;align-items:center}
  @media(min-width:1024px){
    .hero-grid{grid-template-columns:7fr 5fr;gap:48px}
    .hero{padding:48px 0 0}
  }
  .hero h1 span{color:var(--primary)}
  .hero-sub{margin-top:16px;font-size:18px;line-height:1.7;color:var(--muted);max-width:600px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
  .point-pill{
    display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:var(--radius-pill);
    background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--muted);
    transition:all var(--t);
  }
  .point-pill:hover{border-color:#BFD8F2;color:var(--primary);box-shadow:var(--shadow-card)}
  .point-dot{width:8px;height:8px;border-radius:50%;background:var(--secondary);flex:0 0 auto}
  .point-pill:nth-child(2) .point-dot{background:var(--primary)}
  .point-pill:nth-child(3) .point-dot{background:var(--accent)}
  .hero-media{position:relative}
  .hero-media::before{
    content:"";position:absolute;inset:18px -14px -14px 18px;background:var(--primary-soft);
    border-radius:var(--radius-img);z-index:0;
  }
  .hero-media img{position:relative;z-index:1;border-radius:var(--radius-img);width:100%;aspect-ratio:4/3;object-fit:cover}

  /* ---------- 快速定位卡 ---------- */
  .quick-grid{display:grid;gap:16px}
  @media(min-width:768px){.quick-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
  @media(min-width:1024px){.quick-grid{grid-template-columns:repeat(4,1fr)}}
  .quick-card{padding:24px;display:flex;flex-direction:column;gap:10px}
  .quick-card .idx{
    font-size:13px;font-weight:800;color:var(--primary);background:var(--primary-soft);
    width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
  }
  .quick-card h3{font-size:17px}
  .quick-card p{font-size:14px;color:var(--muted);line-height:1.7}
  .quick-card:hover h3{color:var(--primary)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:1080px;margin:0 auto}
  .faq-grid{display:grid;gap:16px}
  @media(min-width:1024px){.faq-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:12px;
    transition:background-color var(--t),border-color var(--t),box-shadow var(--t);
  }
  .faq-item[open]{background:#F8FAFD;border-color:#D8E5F4;box-shadow:var(--shadow-card)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
    padding:20px 22px;font-size:16px;font-weight:600;color:var(--primary);line-height:1.6;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary .plus{
    flex:0 0 auto;margin-left:auto;width:22px;height:22px;position:relative;
    transition:transform var(--t);
  }
  .faq-item summary .plus::before,
  .faq-item summary .plus::after{
    content:"";position:absolute;background:var(--secondary);border-radius:2px;
  }
  .faq-item summary .plus::before{left:0;right:0;top:10px;height:2px}
  .faq-item summary .plus::after{top:0;bottom:0;left:10px;width:2px}
  .faq-item[open] summary .plus{transform:rotate(45deg)}
  .faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85}
  .faq-body strong{color:var(--ink)}
  .faq-step{margin-top:10px;padding-left:0}
  .faq-step li{position:relative;padding-left:22px;margin-bottom:6px;font-size:14px;color:var(--muted)}
  .faq-step li::before{
    content:"";position:absolute;left:6px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--secondary);
  }

  /* ---------- 表单 ---------- */
  .form-shell{position:relative}
  .form-shell::before{
    content:"";position:absolute;left:-16px;bottom:-16px;width:220px;height:220px;border-radius:24px;
    background:rgba(29,78,137,.08);z-index:0;
  }
  @media(max-width:1023px){.form-shell::before{display:none}}
  .form-grid{display:grid;gap:32px;position:relative;z-index:1}
  @media(min-width:1024px){.form-grid{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
  .form-notes{margin-top:22px;display:grid;gap:12px}
  .form-notes li{display:flex;gap:10px;font-size:15px;color:var(--muted);line-height:1.7}
  .tick{
    flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--primary-soft);color:var(--primary);
    display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:4px;
  }
  .form-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}
  @media(min-width:768px){.form-card{padding:32px}}
  .field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
  .field label{font-size:14px;font-weight:600;color:var(--ink)}
  .field label .req{color:#D9534F;font-weight:700;margin-left:2px}
  .field input,.field select,.field textarea{
    width:100%;height:48px;padding:0 14px;border:1px solid #DCE3EE;border-radius:var(--radius-sm);
    background:#fff;font-size:15px;outline:none;transition:border-color var(--t),box-shadow var(--t),background-color var(--t);
  }
  .field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical}
  .field input::placeholder,.field textarea::placeholder{color:var(--weak)}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--primary);box-shadow:0 0 0 3px rgba(29,78,137,.15);
  }
  .field-row{display:grid;gap:18px}
  @media(min-width:768px){.field-row{grid-template-columns:1fr 1fr}}
  .radio-row{display:flex;flex-wrap:wrap;gap:10px}
  .radio-row label{
    display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 14px;
    border:1px solid #DCE3EE;border-radius:var(--radius-pill);font-size:14px;font-weight:500;color:var(--muted);
    cursor:pointer;transition:all var(--t);
  }
  .radio-row label:hover{border-color:#BFD8F2;background:var(--primary-soft);color:var(--primary)}
  .radio-row input{accent-color:var(--primary);width:15px;height:15px}
  .form-foot{display:flex;flex-direction:column;gap:12px;margin-top:6px}
  @media(min-width:640px){.form-foot{flex-direction:row;align-items:center;justify-content:space-between}}
  .form-tip{font-size:13px;color:var(--weak)}
  .form-status{
    display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);
    background:var(--primary-soft);color:var(--primary-deep);font-size:14px;font-weight:600;
  }
  .form-status.is-on{display:block}

  /* ---------- CTA 条 ---------- */
  .cta-band{background:#0F2A47;border-radius:var(--radius-card);padding:32px;color:#C7D3E3}
  @media(min-width:1024px){.cta-band{padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px}}
  .cta-band h2{color:#fff;font-size:24px}
  .cta-band p{margin-top:10px;font-size:15px;color:#C7D3E3;max-width:640px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
  @media(min-width:1024px){.cta-actions{margin-top:0;flex:0 0 auto}}
  .btn-light{background:#fff;color:var(--primary)}
  .btn-light:hover{background:#E8F0FA;transform:translateY(-1px)}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
  .btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#0F2A47;color:#C7D3E3;margin-top:24px}
  .site-footer h3{color:#fff}
  .site-footer a{color:#C7D3E3}
  .site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
  #backTop:hover{color:#fff}

  @media(max-width:639px){
    .nav-search{display:none}
    .brand{font-size:16px}
    .hero-media::before{inset:12px -8px -10px 12px}
  }