/* roulang page: index */
:root{
  --p:#1D5BD8;
  --p-dark:#10367F;
  --p-soft:rgba(29,91,216,.08);
  --orange:#FF7A45;
  --teal:#12A594;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6ECF6;
  --ink:#14213D;
  --muted:#5A6B87;
  --disabled:#A9B6CA;
  --input-line:#D8E1F0;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(23,58,116,.06);
  --sh-hover:0 16px 36px rgba(23,58,116,.12);
  --sh-float:0 24px 48px rgba(16,54,127,.16);
  --sec:clamp(56px,7vw,104px);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--p);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--p);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding-left:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.wrap{padding-left:32px;padding-right:32px;}}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 通用区块 ---------- */
.section{padding-top:var(--sec);padding-bottom:var(--sec);}
.section-tight{padding-top:calc(var(--sec) * .72);padding-bottom:calc(var(--sec) * .72);}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.sec-title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--p-dark);letter-spacing:.2px;}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px;max-width:780px;}
.sec-link{font-size:14.5px;font-weight:500;color:var(--p);border-bottom:2px solid rgba(29,91,216,.28);padding-bottom:2px;}
.sec-link:hover{color:var(--p-dark);border-bottom-color:var(--p-dark);}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;line-height:1;font-weight:500;letter-spacing:.2px;white-space:nowrap;
}
.badge-blue{background:rgba(29,91,216,.12);color:var(--p-dark);}
.badge-orange{background:rgba(255,122,69,.14);color:#C24E1C;}
.badge-teal{background:rgba(18,165,148,.14);color:#0C7A6D;}
.badge-gray{background:rgba(90,107,135,.12);color:var(--muted);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.3px;
  border:1.5px solid transparent;transition:all .22s ease;
}
.btn-primary{background:var(--p);color:#fff;box-shadow:0 10px 22px rgba(29,91,216,.22);}
.btn-primary:hover{background:#1A4FBC;color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(29,91,216,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--p);border-color:var(--p);}
.btn-ghost:hover{background:var(--p-soft);color:var(--p-dark);border-color:var(--p-dark);}
.btn-link{display:inline-block;font-size:14.5px;font-weight:500;color:var(--p);border-bottom:2px solid rgba(29,91,216,.3);padding-bottom:1px;}
.btn-link:hover{color:var(--p-dark);border-bottom-color:var(--p-dark);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.32);box-shadow:var(--sh-hover);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);transition:height .22s ease,box-shadow .22s ease;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .22s ease;}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,58,116,.07);}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--p),var(--p-dark));color:#fff;font-size:16px;
  box-shadow:0 8px 18px rgba(29,91,216,.26);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.4px;color:var(--p-dark);}
.main-nav{display:none;align-items:center;gap:6px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink);transition:all .2s ease;
}
.nav-link:hover{color:var(--p);background:var(--p-soft);}
.nav-link.is-active{color:var(--p);background:var(--p-soft);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:999px;background:var(--p);
}
.nav-cta{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;margin-left:8px;border-radius:var(--r-btn);
  background:var(--p);color:#fff;font-size:15px;font-weight:600;box-shadow:0 8px 18px rgba(29,91,216,.22);
  transition:all .22s ease;
}
.nav-cta:hover{background:#1A4FBC;color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px rgba(29,91,216,.3);}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);color:var(--p-dark);
  display:grid;place-items:center;font-size:18px;background:#fff;
}
@media (min-width:1024px){.nav-toggle{display:none;}}

.nav-overlay{
  position:fixed;inset:0;background:rgba(16,35,63,.5);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:90;
}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;box-shadow:var(--sh-float);
}
body.drawer-open .nav-overlay{opacity:1;visibility:visible;}
body.drawer-open .nav-drawer{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:18px;color:var(--p-dark);background:var(--bg);}
.drawer-body{flex:1;overflow-y:auto;padding:8px 0;}
.drawer-link{display:block;padding:16px 22px;font-size:17px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-link:hover{color:var(--p);background:var(--p-soft);}
.drawer-link.is-active{color:var(--p);background:var(--p-soft);}
.drawer-foot{padding:20px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.78) 52%,rgba(255,255,255,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding-top:clamp(48px,6vw,84px);padding-bottom:clamp(48px,6vw,84px);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(29,91,216,.14) 1px,transparent 1px);
  background-size:22px 22px;
}
.hero .wrap{position:relative;z-index:2;}
.hero-grid{align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(29,91,216,.1);color:var(--p-dark);font-size:13px;font-weight:500;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;color:var(--p-dark);letter-spacing:.3px;
  max-width:660px;
}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:560px;}
.hero-points{margin-top:24px;display:grid;gap:12px;max-width:560px;}
.hero-points li{display:flex;align-items:center;gap:10px;font-size:15.5px;color:var(--ink);}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 8px;}
.dot-teal{background:var(--teal);box-shadow:0 0 0 4px rgba(18,165,148,.14);}
.dot-orange{background:var(--orange);box-shadow:0 0 0 4px rgba(255,122,69,.16);}
.dot-blue{background:var(--p);box-shadow:0 0 0 4px rgba(29,91,216,.14);}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;margin-top:40px;}
@media (min-width:1024px){.hero-visual{margin-top:0;}}
.hero-photo{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#fff;
  box-shadow:var(--sh-float);
}
.hero-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
.float-card{
  position:absolute;left:-8px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-hover);display:flex;align-items:center;gap:12px;
}
@media (min-width:1024px){.float-card{left:-28px;}}
.float-card i{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:rgba(18,165,148,.14);color:var(--teal);font-size:16px;}
.float-card strong{display:block;font-size:15px;color:var(--p-dark);font-family:var(--font-num);}
.float-card span{font-size:12.5px;color:var(--muted);}

.metrics{
  margin-top:clamp(40px,5vw,64px);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:8px 0;
}
.metrics-grid{display:grid;grid-template-columns:repeat(2,1fr);}
@media (min-width:768px){.metrics-grid{grid-template-columns:repeat(4,1fr);}}
.metric{padding:20px 22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
.metric:nth-child(2n){border-right:0;}
.metric:nth-child(n+3){border-bottom:0;}
@media (min-width:768px){
  .metric{border-bottom:0;}
  .metric:nth-child(2n){border-right:1px solid var(--line);}
  .metric:last-child{border-right:0;}
}
.metric b{display:block;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--p);line-height:1.2;}
.metric span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);}

/* ---------- 四步流程 ---------- */
.steps-row{margin-top:8px;}
.step-card{
  --offset:0;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-card);transform:translateY(var(--offset));
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
@media (min-width:1024px){.step-card:nth-child(even){--offset:22px;}}
.step-card:hover{transform:translateY(calc(var(--offset) - 5px));border-color:rgba(29,91,216,.34);box-shadow:var(--sh-hover);}
.step-no{
  display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;
  background:var(--p-soft);color:var(--p);font-family:var(--font-num);font-weight:700;font-size:16px;
}
.step-card h3{margin-top:18px;font-size:19px;font-weight:600;color:var(--p-dark);}
.step-card p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.step-arrow{margin-top:18px;color:var(--p);font-size:14px;display:inline-flex;align-items:center;gap:8px;font-weight:500;}
.grid-steps{padding-bottom:24px;}

/* ---------- 奖励预览 ---------- */
.reward-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.reward-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.reward-grid{grid-template-columns:repeat(3,1fr);}}
.reward-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.32);box-shadow:var(--sh-hover);}
.reward-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.reward-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reward-body h3{font-size:17.5px;font-weight:600;color:var(--p-dark);line-height:1.5;}
.reward-body p{font-size:14.5px;color:var(--muted);}
.reward-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px;}
.reward-feature{grid-column:span 1;}
@media (min-width:1024px){
  .reward-feature{grid-column:span 2;grid-row:span 2;}
  .reward-feature img{aspect-ratio:16/9;}
  .reward-feature .reward-body{padding:28px 30px 30px;}
  .reward-feature .reward-body h3{font-size:22px;}
  .reward-feature .reward-body p{font-size:15.5px;max-width:520px;}
}

/* ---------- 进度模块 ---------- */
.progress-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);
  padding:clamp(24px,3vw,40px);
}
.progress-top{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.progress-main{flex:1 1 380px;min-width:260px;}
.progress-label{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;color:var(--muted);margin-bottom:10px;}
.progress-label b{font-family:var(--font-num);font-size:22px;color:var(--p-dark);font-weight:700;}
.bar{height:8px;border-radius:999px;background:var(--line);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--p),var(--teal));}
.nodes{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:22px;}
@media (min-width:768px){.nodes{grid-template-columns:repeat(4,1fr);}}
.node{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);}
.node i{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:10px;flex:0 0 20px;}
.node.done i{background:rgba(18,165,148,.16);color:var(--teal);}
.node.doing i{background:rgba(255,122,69,.16);color:var(--orange);}
.node.todo i{background:rgba(169,182,202,.2);color:var(--disabled);}
.node.done{color:var(--ink);}
.ring-wrap{display:flex;align-items:center;gap:20px;}
.ring{
  width:118px;height:118px;border-radius:50%;position:relative;display:grid;place-items:center;
  background:conic-gradient(var(--p) 0 68%,var(--orange) 68% 82%,var(--line) 82% 100%);
  box-shadow:0 10px 24px rgba(23,58,116,.08);
}
.ring::after{content:"";position:absolute;inset:13px;background:#fff;border-radius:50%;}
.ring b{position:relative;z-index:2;font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--p-dark);}
.ring-note{font-size:13.5px;color:var(--muted);line-height:1.7;}
.ring-note strong{display:block;color:var(--p-dark);font-size:15px;margin-bottom:4px;}
.stage-cards{display:grid;gap:24px;margin-top:28px;}
@media (min-width:768px){.stage-cards{grid-template-columns:repeat(2,1fr);}}
.stage-card{padding:24px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--bg);}
.stage-card h3{font-size:17px;font-weight:600;color:var(--p-dark);margin-top:12px;}
.stage-card p{margin-top:8px;font-size:14.5px;color:var(--muted);}

/* ---------- 最新信息 ---------- */
.news-grid{margin-bottom:-24px;}
.news-cell{margin-bottom:24px;}
.news-card{
  display:flex;flex-direction:column;gap:12px;height:100%;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);color:var(--ink);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.32);box-shadow:var(--sh-hover);color:var(--ink);}
.news-title{
  font-size:17.5px;font-weight:600;line-height:1.55;color:var(--p-dark);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);
}
.news-meta .more{color:var(--p);font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.empty-card{
  background:#fff;border:1px dashed var(--input-line);border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;box-shadow:var(--sh-card);
}
.empty-card i{font-size:26px;color:var(--disabled);}
.empty-card p{margin-top:14px;color:var(--muted);font-size:15px;}
.empty-card .btn{margin-top:20px;}

/* ---------- 反馈 ---------- */
.feedback-card{padding:26px;height:100%;display:flex;flex-direction:column;gap:14px;}
.feedback-card p{font-size:15px;color:var(--ink);}
.feedback-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.avatar{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:0 0 40px;
  background:var(--p-soft);color:var(--p);font-weight:700;font-size:15px;
}
.feedback-user strong{display:block;font-size:14.5px;color:var(--p-dark);}
.feedback-user span{font-size:12.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(29,91,216,.3);box-shadow:var(--sh-hover);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:4px;border-radius:0 4px 4px 0;background:var(--p);
}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:var(--p-soft);color:var(--p);font-size:18px;font-weight:500;line-height:1;
  transition:transform .22s ease,background-color .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);background:rgba(255,122,69,.16);color:var(--orange);}
.faq-item .faq-a{padding:0 26px 22px 22px;font-size:15px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(29,91,216,.09),rgba(18,165,148,.07)),#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);
  padding:clamp(30px,4vw,56px);display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--p-dark);line-height:1.35;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--muted);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
@media (max-width:479px){.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:#10233F;color:#BFCCE2;padding-top:clamp(48px,6vw,76px);}
.site-footer a{color:#BFCCE2;}
.site-footer a:hover{color:#fff;text-decoration:underline;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;}}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{font-size:18px;font-weight:700;color:#fff;letter-spacing:.4px;}
.footer-desc{font-size:14px;line-height:1.85;color:#93A4BF;max-width:330px;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-col li{margin-bottom:11px;font-size:14px;}
.footer-note{font-size:13.5px;color:#93A4BF;line-height:1.9;}
.footer-bottom{
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:#93A4BF;
}
.search-form{display:flex;gap:10px;margin-top:16px;}
.search-form input{
  flex:1;height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.search-form input::placeholder{color:#7F91AE;}
.search-form input:focus{outline:none;border-color:var(--p);box-shadow:0 0 0 4px rgba(29,91,216,.35);}
.search-form button{
  height:44px;padding:0 18px;border-radius:var(--r-btn);background:var(--p);color:#fff;font-size:14px;font-weight:600;
}
.search-form button:hover{background:#1A4FBC;}

@media (max-width:519px){
  .hero-actions .btn{width:100%;}
  .sec-head{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#1D5BD8;
  --brand-dark:#10367F;
  --brand-deep:#10233F;
  --orange:#FF7A45;
  --teal:#12A594;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6ECF6;
  --ink:#14213D;
  --muted:#5A6B87;
  --disabled:#A9B6CA;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(23,58,116,.06);
  --sh-hover:0 16px 36px rgba(23,58,116,.12);
  --sh-float:0 24px 48px rgba(16,54,127,.16);
  --sec:clamp(56px,7vw,104px);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  font-variant-numeric:tabular-nums;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.15em}
h1{font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.01em}
h3{font-size:19px;line-height:1.5;font-weight:600}
p{color:var(--muted)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.wrap{padding:0 32px}}
.section{padding:var(--sec) 0}
.section--tight{padding:calc(var(--sec) * .62) 0}
.reading{max-width:780px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;line-height:1.4;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:rgba(29,91,216,.1);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(29,91,216,.22)}
.btn-primary:hover{background:#1749b5;color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(29,91,216,.3)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(29,91,216,.08);color:var(--brand-dark);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark);box-shadow:var(--sh-card)}
.btn-light:hover{color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-underline{font-weight:600;border-bottom:2px solid rgba(29,91,216,.35);padding-bottom:2px}
.link-underline:hover{border-bottom-color:var(--brand)}

/* ---------- tags / badges ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;line-height:1;font-weight:600;white-space:nowrap;
}
.tag-blue{background:rgba(29,91,216,.12);color:#1749b5}
.tag-orange{background:rgba(255,122,69,.14);color:#c9501f}
.tag-teal{background:rgba(18,165,148,.14);color:#0c7d70}
.tag-grey{background:rgba(90,107,135,.12);color:var(--muted)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  transition:height .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(23,58,116,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px}
.brand:hover{color:var(--brand-dark)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:16px;box-shadow:0 8px 18px rgba(29,91,216,.28);
}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(29,91,216,.07)}
.nav-link.is-active{color:var(--brand);background:rgba(29,91,216,.1)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--brand);
}
.nav-cta{
  margin-left:10px;display:inline-flex;align-items:center;height:42px;padding:0 20px;
  border-radius:var(--r-btn);background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 20px rgba(29,91,216,.22);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-cta:hover{background:#1749b5;color:#fff;transform:translateY(-2px);box-shadow:0 16px 28px rgba(29,91,216,.3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:18px;align-items:center;justify-content:center;
}
@media(max-width:1023px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:0;right:0;z-index:80;
    width:min(84vw,340px);height:100vh;
    flex-direction:column;align-items:stretch;gap:0;
    padding:78px 20px 28px;
    background:#fff;box-shadow:var(--sh-float);
    transform:translateX(102%);transition:transform .26s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{height:auto;padding:16px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:17px}
  .nav-link.is-active::after{display:none}
  .nav-cta{margin:22px 0 0;justify-content:center}
  .nav-backdrop{
    position:fixed;inset:0;background:rgba(16,35,63,.42);z-index:70;
    opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
  }
  .nav-backdrop.is-open{opacity:1;visibility:visible}
}
@media(min-width:1024px){.nav-backdrop{display:none}}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--disabled)}
.crumb .now{color:var(--brand-dark);font-weight:600}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(255,255,255,.88) 0%,rgba(255,255,255,.7) 52%,rgba(246,248,252,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero__tex{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(29,91,216,.16) 1px,transparent 1px);
  background-size:20px 20px;opacity:.35;pointer-events:none;
}
.cat-hero__inner{position:relative;padding:clamp(44px,6vw,76px) 0 clamp(40px,5vw,64px)}
.cat-hero h1{max-width:820px;color:var(--brand-dark)}
.cat-hero h1 .hl{color:var(--brand)}
.cat-hero .lede{margin-top:18px;max-width:720px;font-size:17px;color:#3b4c6b}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags .tag{height:28px;padding:0 14px;font-size:13px}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:34px}
@media(min-width:768px){.stats{grid-template-columns:repeat(4,1fr)}}
.stat{
  background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-card);
}
.stat b{display:block;font-size:clamp(22px,3vw,28px);font-weight:700;color:var(--brand);line-height:1.2}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}

/* ---------- section head ---------- */
.sec-head{max-width:760px;margin-bottom:clamp(30px,4vw,52px)}
.sec-head p{margin-top:14px;font-size:16.5px}
.sec-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none;flex-wrap:wrap}

/* ---------- feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr;gap:clamp(24px,4vw,52px);align-items:center;
  padding:clamp(26px,3.4vw,38px);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
}
.feature-row + .feature-row{margin-top:clamp(22px,3vw,32px)}
@media(min-width:900px){
  .feature-row{grid-template-columns:1fr 1fr}
  .feature-row.is-flip .feature-media{order:2}
  .feature-row.is-flip .feature-body{order:1}
}
.feature-media{position:relative;border-radius:var(--r-img);overflow:hidden}
.feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);transition:transform .4s ease}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-index{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:32px;padding:0 12px;border-radius:999px;
  background:rgba(16,35,63,.78);color:#fff;font-size:14px;font-weight:700;letter-spacing:.04em;
}
.feature-body h3{margin-bottom:12px;color:var(--brand-dark)}
.feature-body p + p{margin-top:12px}
.check-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--muted)}
.check-list i{color:var(--teal);margin-top:5px;font-size:14px}
.feature-actions{margin-top:22px}

/* ---------- checklist band ---------- */
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.band-grid{grid-template-columns:1.05fr .95fr}}
.check-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(22px,2.6vw,30px);box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(29,91,216,.4)}
.check-card h3{margin-bottom:8px;color:var(--brand-dark)}
.check-card .card-cap{font-size:14px;color:var(--muted);margin-bottom:16px}
.mini-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:12px;border-bottom:1px dashed var(--line);font-size:15.5px;color:var(--muted);
}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list .idx{
  flex:0 0 26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(29,91,216,.1);color:var(--brand);font-size:13px;font-weight:700;
}
.warn-list .idx{background:rgba(255,122,69,.16);color:#c9501f}

/* ---------- QA ---------- */
.qa-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.qa-grid{grid-template-columns:repeat(3,1fr)}}
.qa-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(29,91,216,.35)}
.qa-card .q{display:flex;gap:10px;align-items:flex-start;font-size:17px;font-weight:600;color:var(--brand-dark);margin-bottom:12px}
.qa-card .q span{
  flex:0 0 6px;width:6px;height:20px;border-radius:999px;background:var(--brand);margin-top:4px;
}
.qa-card p{font-size:15.5px}

/* ---------- CTA ---------- */
.cta-band{padding-bottom:var(--sec)}
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(29,91,216,.12),rgba(18,165,148,.1));
  border:1px solid rgba(29,91,216,.2);border-radius:var(--r-lg);
  padding:clamp(30px,4vw,56px);text-align:center;
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(16,54,127,.16) 1px,transparent 1px);
  background-size:18px 18px;opacity:.3;
}
.cta-card > *{position:relative;z-index:2}
.cta-card h2{color:var(--brand-dark);margin-bottom:14px}
.cta-card p{max-width:640px;margin:0 auto 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-note{margin-top:18px;font-size:14px;color:var(--muted)}
@media(max-width:479px){
  .cta-actions .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#c8d3e6;margin-top:0}
.site-footer .wrap{padding-top:clamp(46px,5vw,72px);padding-bottom:26px}
.site-footer::before{content:"";display:block;height:1px;background:rgba(255,255,255,.14)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand),var(--teal))}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.75;color:#93A4BF;max-width:340px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{color:#c8d3e6;font-size:14.5px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-note{font-size:14px;color:#93A4BF;margin-bottom:14px;line-height:1.7}
.search-form{display:flex;gap:0;max-width:100%}
.search-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;
  border:1px solid #2c4a75;border-right:0;border-radius:10px 0 0 10px;
  background:rgba(255,255,255,.06);color:#fff;font-size:14.5px;font-family:inherit;
}
.search-form input::placeholder{color:#8fa1bd}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(29,91,216,.18)}
.search-form button{
  height:44px;padding:0 18px;border:0;border-radius:0 10px 10px 0;
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background .18s ease;
}
.search-form button:hover{background:#1749b5}
.footer-bottom{
  margin-top:clamp(30px,4vw,48px);padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#93A4BF;
}

/* roulang page: article */
:root{
  --brand:#1D5BD8;
  --brand-deep:#10367F;
  --orange:#FF7A45;
  --teal:#12A594;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6ECF6;
  --ink:#14213D;
  --muted:#5A6B87;
  --disabled:#A9B6CA;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(23,58,116,.06);
  --sh-hover:0 16px 36px rgba(23,58,116,.12);
  --sh-float:0 24px 48px rgba(16,54,127,.16);
  --gap-section:clamp(56px,7vw,104px);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Noto Sans SC","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-deep)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--brand-deep);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.grid-container,.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.grid-container{padding-left:20px;padding-right:20px}
@media screen and (min-width:1024px){
  .grid-container,.wrap{padding-left:32px;padding-right:32px}
}
.grid-x{display:flex;flex-wrap:wrap}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.cell{flex:0 0 auto;min-width:0;width:100%}
@media screen and (min-width:640px){
  .medium-6{width:50%}
}
@media screen and (min-width:1024px){
  .large-4{width:33.3333%}
  .large-5{width:41.6667%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid transparent;
  backdrop-filter:saturate(150%) blur(6px);
  transition:box-shadow .22s ease,border-color .22s ease,height .22s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px rgba(23,58,116,.07);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:72px;
  transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--brand-deep);
  font-weight:700;
  font-size:17px;
  letter-spacing:.3px;
}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,#3B7BEA 100%);
  color:#fff;
  font-size:17px;
  box-shadow:0 8px 18px rgba(29,91,216,.28);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(29,91,216,.07)}
.nav-link.is-active{color:var(--brand);background:rgba(29,91,216,.1)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  transform:translateX(-50%);
  width:22px;
  height:3px;
  border-radius:3px;
  background:var(--brand);
}
.nav-cta{
  margin-left:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 8px 18px rgba(29,91,216,.24);
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:#1A50C0;color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px rgba(29,91,216,.3)}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media screen and (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    width:min(320px,84vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:88px 20px 28px;
    box-shadow:var(--sh-float);
    transform:translateX(102%);
    transition:transform .26s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{
    border-radius:12px;
    padding:14px 12px;
    font-size:17px;
    border-bottom:1px solid var(--line);
  }
  .nav-link.is-active::after{display:none}
  .nav-cta{margin:22px 0 0;width:100%;min-height:48px;font-size:16px}
  body.nav-open::before{
    content:"";
    position:fixed;
    inset:0;
    background:rgba(16,35,63,.45);
    z-index:55;
  }
}

/* ---------- hero strip ---------- */
.page-strip{
  position:relative;
  padding:44px 0 40px;
  background-image:linear-gradient(90deg,rgba(255,255,255,.86) 0%,rgba(255,255,255,.66) 55%,rgba(255,255,255,.52) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-strip::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(29,91,216,.08) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.5;
  pointer-events:none;
}
.page-strip .wrap{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--disabled)}
.breadcrumb .here{
  max-width:min(420px,60vw);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--brand-deep);
  font-weight:600;
}
.strip-h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;
  max-width:900px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:18px;
  font-size:14px;
  color:var(--muted);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.4;
  font-family:var(--font-cn);
}
.badge-blue{background:rgba(29,91,216,.12);color:var(--brand-deep)}
.badge-orange{background:rgba(255,122,69,.14);color:#C64A17}
.badge-teal{background:rgba(18,165,148,.14);color:#0B7A6D}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--disabled)}

/* ---------- article layout ---------- */
.article-section{padding:clamp(32px,4vw,52px) 0 var(--gap-section)}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
  padding:clamp(22px,3.2vw,44px);
}
.article-body{
  max-width:780px;
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
}
.article-body>*+*{margin-top:18px}
.article-body h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  margin-top:40px;
  padding-left:14px;
  position:relative;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  bottom:8px;
  width:4px;
  border-radius:4px;
  background:var(--brand);
}
.article-body h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin-top:28px;
  color:var(--brand-deep);
}
.article-body p{margin-top:18px}
.article-body ul,.article-body ol{margin-top:16px;padding-left:0}
.article-body li{
  position:relative;
  padding-left:22px;
  margin-top:10px;
}
.article-body ul>li::before{
  content:"";
  position:absolute;
  left:4px;
  top:12px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--teal);
}
.article-body ol{counter-reset:olnum}
.article-body ol>li{counter-increment:olnum}
.article-body ol>li::before{
  content:counter(olnum);
  position:absolute;
  left:0;
  top:5px;
  width:20px;
  height:20px;
  border-radius:6px;
  background:rgba(29,91,216,.12);
  color:var(--brand-deep);
  font-size:12px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  border-left:3px solid var(--brand);
  background:#F2F6FF;
  border-radius:0 12px 12px 0;
  color:var(--brand-deep);
}
.article-body blockquote p{margin:0}
.article-body img{margin:22px 0;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{
  margin-top:8px;
  font-size:13.5px;
  color:var(--muted);
  text-align:center;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  border-radius:12px;
  overflow:hidden;
  box-shadow:0 0 0 1px var(--line);
}
.article-body th,.article-body td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.article-body th{background:#F2F6FF;color:var(--brand-deep);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFBFF}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--brand-deep)}
.article-body strong{color:var(--brand-deep)}

.empty-state{
  max-width:780px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:32px;
  background:#FAFBFF;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:18px}

/* ---------- sidebar ---------- */
.side-col{position:relative}
.side-stack{
  position:sticky;
  top:96px;
  display:grid;
  gap:20px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.side-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.35);box-shadow:var(--sh-hover)}
.side-card h3{
  font-size:16px;
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h3 i{color:var(--brand)}
.side-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;
  color:var(--muted);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list i{color:var(--teal);margin-top:6px;font-size:12px}
.side-card .btn{width:100%;margin-top:16px}
.rec-mini{
  display:block;
  border-radius:12px;
  overflow:hidden;
  margin-bottom:12px;
}
.rec-mini img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;transition:transform .3s ease}
.rec-mini:hover img{transform:scale(1.04)}
.rec-mini span{display:block;margin-top:8px;font-size:14.5px;font-weight:600;color:var(--brand-deep);line-height:1.5}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15.5px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:0 10px 22px rgba(29,91,216,.24);
}
.btn-primary:hover{background:#1A50C0;color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(29,91,216,.3)}
.btn-ghost{
  border-color:var(--brand);
  color:var(--brand);
  background:transparent;
}
.btn-ghost:hover{background:rgba(29,91,216,.08);color:var(--brand-deep);transform:translateY(-2px)}
.btn-soft{
  background:rgba(29,91,216,.1);
  color:var(--brand-deep);
}
.btn-soft:hover{background:rgba(29,91,216,.18);color:var(--brand-deep)}
.btn:focus-visible,.nav-link:focus-visible,.nav-cta:focus-visible,.nav-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:var(--r-btn);
}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- tail blocks ---------- */
.tail-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:40px}
@media screen and (min-width:768px){.tail-grid{grid-template-columns:repeat(2,1fr)}}
@media screen and (min-width:1024px){.tail-grid{grid-template-columns:repeat(3,1fr)}}
.tail-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tail-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.35);box-shadow:var(--sh-hover)}
.tail-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.tail-card .tail-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.tail-card h3{font-size:17.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tail-card p{
  font-size:14.5px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:#F2F6FF;
  color:var(--brand-deep);
  font-size:13px;
  border:1px solid var(--line);
  transition:background-color .18s ease,transform .18s ease;
}
.tag:hover{background:rgba(29,91,216,.12);transform:translateY(-2px)}
.nav-pair{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-top:32px;
}
@media screen and (min-width:640px){.nav-pair{grid-template-columns:1fr 1fr}}
.pair-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pair-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.35);box-shadow:var(--sh-hover)}
.pair-card small{font-size:13px;color:var(--muted)}
.pair-card strong{font-size:16.5px;color:var(--brand-deep);font-weight:600}
.pair-card.next{text-align:right;align-items:flex-end}

.faq-block{margin-top:var(--gap-section)}
.section-head{max-width:720px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.section-head p{margin-top:10px;color:var(--muted);font-size:15.5px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:20px 56px 20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--brand-deep);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;
  top:16px;
  width:4px;
  height:22px;
  border-radius:0 4px 4px 0;
  background:var(--brand);
}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  color:var(--brand);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item .faq-body{
  padding:0 24px 22px 24px;
  color:var(--muted);
  font-size:15.5px;
}
.faq-item .faq-body p+p{margin-top:10px}

.cta-band{
  margin-top:var(--gap-section);
  position:relative;
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,52px);
  background:linear-gradient(135deg,#EAF1FF 0%,#F4F8FF 100%);
  border:1px solid #DCE7FA;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:240px;
  height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(29,91,216,.18) 0%,rgba(29,91,216,0) 70%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-inner h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35}
.cta-inner p{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-note{margin-top:14px;font-size:13.5px;color:var(--muted)}

/* ---------- footer ---------- */
.site-footer{
  background:#10233F;
  color:#C7D3E6;
  padding:clamp(48px,6vw,72px) 0 28px;
  margin-top:var(--gap-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding-bottom:32px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
@media screen and (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media screen and (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.4fr}}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:700;
  font-size:17px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.12);
  box-shadow:none;
}
.footer-desc{margin-top:14px;font-size:14.5px;color:#93A4BF;max-width:340px}
.footer-col h3{
  color:#fff;
  font-size:15.5px;
  margin-bottom:14px;
  font-weight:600;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C7D3E6;font-size:14.5px}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-note{font-size:14px;color:#93A4BF;margin-bottom:14px}
.search-form{display:flex;gap:0;max-width:340px}
.search-form input{
  flex:1;
  height:44px;
  padding:0 14px;
  border:1px solid #2C4160;
  border-right:0;
  border-radius:10px 0 0 10px;
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14.5px;
}
.search-form input::placeholder{color:#7E90AC}
.search-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(29,91,216,.22);
  background:rgba(255,255,255,.1);
}
.search-form button{
  height:44px;
  padding:0 18px;
  border:0;
  border-radius:0 10px 10px 0;
  background:var(--brand);
  color:#fff;
  font-size:14.5px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease;
}
.search-form button:hover{background:#1A50C0}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding-top:22px;
  font-size:13px;
  color:#93A4BF;
}
@media screen and (max-width:520px){
  .btn{width:100%}
  .cta-actions{width:100%}
  .brand{font-size:16px}
  .strip-h1{font-size:26px}
}

/* roulang page: category3 */
:root{
  --blue:#1D5BD8;
  --blue-deep:#10367F;
  --blue-soft:rgba(29,91,216,.08);
  --orange:#FF7A45;
  --orange-soft:rgba(255,122,69,.12);
  --teal:#12A594;
  --teal-soft:rgba(18,165,148,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6ECF6;
  --ink:#14213D;
  --muted:#5A6B87;
  --disabled:#A9B6CA;
  --footer:#10233F;
  --r-card:16px;
  --r-big:20px;
  --r-img:14px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(23,58,116,.06);
  --sh-hover:0 16px 36px rgba(23,58,116,.12);
  --sh-float:0 24px 48px rgba(16,54,127,.16);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-num:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--blue);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--blue-deep);}
button,input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--blue-deep);font-weight:700;letter-spacing:.005em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.wrap{padding:0 32px;}}
.section{padding:clamp(56px,7vw,104px) 0;}
.section-tight{padding:clamp(40px,5vw,72px) 0;}
.sec-head{max-width:780px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12.5px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--blue);background:var(--blue-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(29,91,216,.22);}
.btn-primary:hover{background:#1749B4;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(29,91,216,.3);}
.btn-ghost{background:transparent;color:var(--blue);border-color:var(--blue);}
.btn-ghost:hover{background:var(--blue-soft);color:var(--blue-deep);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--blue);box-shadow:var(--sh-card);}
.btn-light:hover{color:var(--blue-deep);transform:translateY(-2px);box-shadow:var(--sh-hover);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--blue);border-bottom:2px solid rgba(29,91,216,.28);padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--blue);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-blue{background:var(--blue-soft);color:var(--blue-deep);}
.badge-orange{background:var(--orange-soft);color:#B84513;}
.badge-teal{background:var(--teal-soft);color:#0B7568;}
.badge-plain{background:#EEF2FA;color:var(--muted);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:height .2s ease,box-shadow .2s ease;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;}
.site-header.is-scrolled .header-inner{height:64px;}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,58,116,.07);}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--blue-deep);font-weight:700;font-size:17px;}
.brand:hover{color:var(--blue-deep);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue),#2E7BE8);
  color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(29,91,216,.26);
}
.brand-text{letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink);
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--blue);background:#F1F5FD;}
.nav-link.is-active{color:var(--blue);background:var(--blue-soft);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--blue);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 20px;margin-left:10px;border-radius:var(--r-btn);
  background:var(--blue);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(29,91,216,.22);
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:#1749B4;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(29,91,216,.3);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--blue-deep);font-size:17px;cursor:pointer;
}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(16,35,63,.42);z-index:70;opacity:0;transition:opacity .2s ease;
}
.nav-mask.is-open{display:block;opacity:1;}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:84px 20px 28px;z-index:80;
    transform:translateX(102%);transition:transform .24s ease;
    box-shadow:var(--sh-float);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{font-size:17px;padding:16px 12px;border-radius:12px;border-bottom:1px solid var(--line);}
  .nav-link.is-active::after{display:none;}
  .nav-cta{margin:20px 0 0;min-height:48px;font-size:16px;}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:13.5px;color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--blue);}
.crumb .sep{opacity:.55;}
.crumb .now{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.78),rgba(246,248,252,.9));
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(29,91,216,.14) 1px,transparent 1px);
  background-size:18px 18px;
}
.hero-inner{position:relative;z-index:2;padding:clamp(48px,6vw,84px) 0 clamp(44px,6vw,72px);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px;align-items:center;}}
.hero-title{font-size:clamp(28px,4vw,42px);line-height:1.25;}
.hero-title span{color:var(--blue);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted);line-height:1.85;max-width:620px;}
.hero-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.hero-points li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--ink);}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 8px;}
.dot-teal{background:var(--teal);}
.dot-orange{background:var(--orange);}
.dot-blue{background:var(--blue);}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:479px){.hero-actions .btn{width:100%;}}

.hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-big);
  padding:26px;box-shadow:var(--sh-card);
}
.hero-panel h2{font-size:18px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.node-list{display:flex;flex-direction:column;gap:14px;}
.node{display:flex;align-items:center;gap:12px;font-size:14.5px;}
.node-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;
}
.node-done .node-ico{background:var(--teal-soft);color:var(--teal);}
.node-now .node-ico{background:var(--orange-soft);color:#B84513;}
.node-next .node-ico{background:#EEF2FA;color:var(--disabled);}
.node-text{flex:1;color:var(--ink);}
.node-state{font-size:12.5px;font-weight:600;font-family:var(--font-num);}
.node-done .node-state{color:var(--teal);}
.node-now .node-state{color:#B84513;}
.node-next .node-state{color:var(--disabled);}
.panel-track{margin-top:22px;}
.track{height:8px;border-radius:999px;background:var(--line);overflow:hidden;}
.track-fill{height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--teal));}
.track-meta{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-size:13.5px;color:var(--muted);}
.track-meta b{font-family:var(--font-num);font-size:14px;color:var(--blue-deep);}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.layout{grid-template-columns:8fr 4fr;gap:40px;align-items:start;}}
.read-col{max-width:780px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(29,91,216,.35),rgba(29,91,216,.08));
}
.tl-item{position:relative;display:flex;gap:20px;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-index{
  position:relative;z-index:2;flex:0 0 48px;width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-card);
  font-family:var(--font-num);font-size:16px;font-weight:700;color:var(--blue);
  font-variant-numeric:tabular-nums;
}
.tl-item.is-done .tl-index{background:var(--teal);border-color:var(--teal);color:#fff;}
.tl-item.is-now .tl-index{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 10px 22px rgba(29,91,216,.28);}
.tl-body{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFDDF7;}
.tl-body h3{font-size:19px;line-height:1.5;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:15.5px;line-height:1.8;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tl-figure{margin-top:16px;border-radius:var(--r-img);overflow:hidden;}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);}

/* ---------- 数据指标行 ---------- */
.stats{
  margin:clamp(40px,5vw,64px) 0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-big);
  padding:clamp(24px,3vw,36px);box-shadow:var(--sh-card);
}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media (min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr);}}
.stat{text-align:left;border-left:3px solid var(--blue-soft);padding-left:16px;}
.stat:nth-child(2){border-left-color:var(--orange-soft);}
.stat:nth-child(3){border-left-color:var(--teal-soft);}
.stat-num{
  font-family:var(--font-num);font-size:clamp(24px,3vw,32px);font-weight:700;
  color:var(--blue);line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat:nth-child(2) .stat-num{color:#B84513;}
.stat:nth-child(3) .stat-num{color:#0B7568;}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.scene-grid{grid-template-columns:repeat(3,1fr);}}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFDDF7;}
.scene-ico{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--blue-soft);color:var(--blue);font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:17px;margin-bottom:10px;}
.scene-card p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:24px;}
@media (min-width:1024px){.side-col{position:sticky;top:96px;}}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-card);
}
.side-card h3{font-size:17px;margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;gap:14px;}
.side-list li{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;font-size:14.5px;color:var(--muted);border-bottom:1px dashed var(--line);padding-bottom:12px;}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list b{color:var(--ink);font-weight:600;font-family:var(--font-num);font-variant-numeric:tabular-nums;white-space:nowrap;}
.side-card .btn{width:100%;margin-top:20px;}
.side-note{margin-top:12px;font-size:13px;color:var(--muted);line-height:1.7;text-align:center;}
.side-entrance{background:linear-gradient(180deg,#F4F8FF,#FFFFFF);}
.side-entrance ul{display:flex;flex-direction:column;gap:12px;margin-top:6px;}
.side-entrance li a{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--ink);padding:12px 14px;border-radius:12px;background:#fff;border:1px solid var(--line);transition:all .18s ease;}
.side-entrance li a:hover{border-color:#CFDDF7;color:var(--blue);transform:translateY(-2px);box-shadow:var(--sh-card);}
.side-entrance li i{color:var(--blue);font-size:14px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#CFDDF7;box-shadow:var(--sh-hover);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 60px 20px 30px;font-size:17px;font-weight:600;color:var(--blue-deep);line-height:1.6;
}
.faq-item summary::before{
  content:"";position:absolute;left:14px;top:24px;width:4px;height:18px;border-radius:4px;background:var(--blue);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--blue-soft);color:var(--blue);font-size:16px;font-weight:600;line-height:1;
  transition:transform .22s ease,background-color .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);background:var(--blue);color:#fff;}
.faq-body{padding:0 30px 22px;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#EAF1FF,#F7FAFF 60%,#FFFFFF);
  border:1px solid var(--line);border-radius:var(--r-big);
  padding:clamp(32px,4vw,56px);box-shadow:var(--sh-card);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(29,91,216,.12),rgba(29,91,216,0) 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
@media (min-width:1024px){.cta-inner{grid-template-columns:2fr 1fr;}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.cta-inner p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
@media (max-width:479px){.cta-actions .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C7D3E6;padding:clamp(48px,6vw,72px) 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.8;color:#93A4BF;max-width:340px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#C7D3E6;font-size:14px;transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-note{font-size:13.5px;color:#93A4BF;line-height:1.8;margin-bottom:14px;}
.search-form{display:flex;gap:0;max-width:340px;}
.search-form input{
  flex:1;height:44px;padding:0 14px;border:1px solid #26456F;border-right:0;
  border-radius:10px 0 0 10px;background:#0C1B33;color:#fff;font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input::placeholder{color:#7A8CA8;}
.search-form input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(29,91,216,.18);}
.search-form button{
  height:44px;padding:0 18px;border:0;border-radius:0 10px 10px 0;
  background:var(--blue);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease;
}
.search-form button:hover{background:#1749B4;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#93A4BF;
}

/* ---------- 通用覆盖 Foundation ---------- */
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.grid-container{padding-left:32px;padding-right:32px;}}
.button,button{font-family:var(--font);}

/* roulang page: category2 */
:root{
    --brand:#1D5BD8;
    --brand-dark:#10367F;
    --brand-deep:#10233F;
    --accent:#FF7A45;
    --teal:#12A594;
    --bg:#F6F8FC;
    --card:#FFFFFF;
    --line:#E6ECF6;
    --ink:#14213D;
    --muted:#5A6B87;
    --disabled:#A9B6CA;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-img:14px;
    --radius-btn:10px;
    --shadow-card:0 8px 24px rgba(23,58,116,.06);
    --shadow-card-hover:0 16px 36px rgba(23,58,116,.12);
    --shadow-pop:0 24px 48px rgba(16,54,127,.16);
    --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    --font-num:"Inter","Noto Sans SC",system-ui,sans-serif;
    --gap-section:clamp(56px,7vw,104px);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16.5px;
    line-height:1.8;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--radius-img);}
  a{color:inherit;text-decoration:none;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
  }
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  .num{font-family:var(--font-num);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;}

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

  .grid-x.gap-24{margin-left:-12px;margin-right:-12px;margin-bottom:-24px;}
  .grid-x.gap-24 > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15.5px;
    font-weight:600;
    line-height:1;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--brand);
    color:#fff;
    box-shadow:0 10px 22px rgba(29,91,216,.22);
  }
  .btn-primary:hover{
    background:#1a51c2;
    transform:translateY(-2px);
    box-shadow:0 16px 30px rgba(29,91,216,.3);
    color:#fff;
  }
  .btn-ghost{
    border:1.5px solid var(--brand);
    color:var(--brand);
    background:transparent;
  }
  .btn-ghost:hover{background:rgba(29,91,216,.08);transform:translateY(-2px);color:var(--brand-dark);}
  .btn-link{
    color:var(--brand);
    font-weight:600;
    border-bottom:2px solid rgba(29,91,216,.28);
    padding-bottom:2px;
    border-radius:0;
    min-height:auto;
    transition:border-color .18s ease,color .18s ease;
  }
  .btn-link:hover{border-color:var(--brand);color:var(--brand-dark);}
  .btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

  /* ============ 徽章 ============ */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:24px;
    padding:0 10px;
    border-radius:999px;
    font-size:12.5px;
    line-height:1.4;
    font-weight:600;
  }
  .badge-blue{background:rgba(29,91,216,.12);color:var(--brand-dark);}
  .badge-orange{background:rgba(255,122,69,.14);color:#C24A18;}
  .badge-teal{background:rgba(18,165,148,.14);color:#0B7A6C;}

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid transparent;
    transition:height .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    height:72px;
    transition:height .22s ease;
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    box-shadow:0 6px 20px rgba(23,58,116,.07);
  }
  .site-header.is-scrolled .header-inner{height:64px;}

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:38px;height:38px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:linear-gradient(140deg,#1D5BD8,#10367F);
    color:#fff;
    font-size:16px;
    box-shadow:0 8px 18px rgba(29,91,216,.24);
  }
  .brand-text{
    font-size:18px;
    font-weight:700;
    color:var(--brand-dark);
    letter-spacing:.2px;
  }

  .main-nav{display:flex;align-items:center;gap:6px;}
  .nav-link{
    position:relative;
    padding:8px 14px;
    border-radius:999px;
    font-size:15px;
    font-weight:500;
    color:var(--ink);
    transition:color .18s ease,background-color .18s ease;
  }
  .nav-link:hover{color:var(--brand);background:rgba(29,91,216,.06);}
  .nav-link.is-active{
    color:var(--brand);
    background:rgba(29,91,216,.1);
  }
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:50%;bottom:1px;
    transform:translateX(-50%);
    width:20px;height:3px;
    border-radius:999px;
    background:var(--brand);
  }
  .nav-cta{
    margin-left:10px;
    display:inline-flex;
    align-items:center;
    min-height:40px;
    padding:0 18px;
    border-radius:var(--radius-btn);
    background:var(--brand);
    color:#fff;
    font-size:14.5px;
    font-weight:600;
    transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
    box-shadow:0 8px 18px rgba(29,91,216,.2);
  }
  .nav-cta:hover{background:#1a51c2;transform:translateY(-2px);box-shadow:0 14px 26px rgba(29,91,216,.28);color:#fff;}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    border-radius:12px;
    background:rgba(29,91,216,.08);
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:4px;
  }
  .nav-toggle span{
    display:block;
    width:18px;height:2px;
    border-radius:2px;
    background:var(--brand-dark);
    transition:transform .2s ease,opacity .2s ease;
  }
  .nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle.is-open span:nth-child(2){opacity:0;}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .nav-scrim{
    position:fixed;inset:0;
    background:rgba(16,35,63,.4);
    opacity:0;
    pointer-events:none;
    transition:opacity .22s ease;
    z-index:70;
  }
  .nav-scrim.is-show{opacity:1;pointer-events:auto;}

  .nav-drawer{
    position:fixed;
    top:0;right:0;
    height:100%;
    width:min(84vw,340px);
    background:#fff;
    z-index:80;
    transform:translateX(102%);
    transition:transform .26s ease;
    display:flex;
    flex-direction:column;
    padding:22px 20px 26px;
    box-shadow:var(--shadow-pop);
  }
  .nav-drawer.is-open{transform:translateX(0);}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:16px;
    border-bottom:1px solid var(--line);
    margin-bottom:8px;
  }
  .drawer-close{
    width:40px;height:40px;border-radius:10px;
    background:rgba(29,91,216,.08);
    color:var(--brand-dark);
    font-size:16px;
  }
  .drawer-links{flex:1;overflow-y:auto;}
  .drawer-links a{
    display:block;
    padding:15px 4px;
    font-size:17px;
    font-weight:500;
    color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer-links a.is-active{color:var(--brand);font-weight:700;}
  .drawer-cta{margin-top:18px;}
  .drawer-cta .btn{width:100%;}

  @media (max-width:1023px){
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
  }
  @media (min-width:1024px){
    .nav-drawer,.nav-scrim{display:none;}
  }

  /* ============ 面包屑 ============ */
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:14px;
    color:var(--muted);
    padding:18px 0 0;
  }
  .breadcrumb a{color:var(--muted);transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--brand);}
  .crumb-current{color:var(--brand-dark);font-weight:600;}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;
    padding:0 0 clamp(40px,5vw,64px);
    background-color:#F2F6FD;
    background-image:
      linear-gradient(rgba(255,255,255,.80),rgba(255,255,255,.88)),
      url("/assets/images/backpic/back-1.webp");
    background-size:cover,cover;
    background-position:center,center;
    overflow:hidden;
  }
  .page-hero::after{
    content:"";
    position:absolute;inset:0;
    background-image:radial-gradient(rgba(29,91,216,.14) 1px,transparent 1px);
    background-size:18px 18px;
    opacity:.35;
    pointer-events:none;
  }
  .page-hero .wrap{position:relative;z-index:2;}
  .hero-grid{padding-top:clamp(26px,4vw,46px);}
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:28px;
    padding:0 14px;
    border-radius:999px;
    background:rgba(29,91,216,.1);
    color:var(--brand-dark);
    font-size:12.5px;
    font-weight:600;
    margin-bottom:16px;
  }
  .page-hero h1{
    font-size:clamp(28px,4vw,42px);
    line-height:1.25;
    font-weight:700;
    color:var(--brand-dark);
    max-width:15em;
  }
  .hero-sub{
    margin-top:14px;
    font-size:18px;
    font-weight:600;
    color:var(--ink);
  }
  .hero-desc{
    margin-top:14px;
    max-width:42em;
    color:var(--muted);
    font-size:16px;
    line-height:1.85;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:26px;
  }
  .hero-points{
    display:flex;
    flex-wrap:wrap;
    gap:10px 22px;
    margin-top:22px;
  }
  .hero-points li{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--muted);
  }
  .dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto;}
  .dot-teal{background:var(--teal);}
  .dot-orange{background:var(--accent);}
  .dot-blue{background:var(--brand);}

  .hero-figure{
    position:relative;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:12px;
    box-shadow:var(--shadow-card);
  }
  .hero-figure img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:var(--radius-img);
  }
  .hero-figure-tag{
    position:absolute;
    left:24px;bottom:24px;
    background:rgba(255,255,255,.94);
    border:1px solid var(--line);
    color:var(--brand-dark);
    font-size:12.5px;
    font-weight:600;
    padding:6px 12px;
    border-radius:999px;
    box-shadow:0 8px 18px rgba(23,58,116,.1);
  }

  /* ============ 通用板块 ============ */
  .section{padding:var(--gap-section) 0 0;}
  .section-xl{padding:var(--gap-section) 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:32px;
  }
  .section-title{
    font-size:clamp(22px,2.6vw,30px);
    line-height:1.35;
    font-weight:700;
    color:var(--brand-dark);
  }
  .section-desc{
    margin-top:10px;
    max-width:42em;
    color:var(--muted);
    font-size:15.5px;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12.5px;
    font-weight:700;
    letter-spacing:.08em;
    color:var(--brand);
    text-transform:uppercase;
    margin-bottom:12px;
  }

  /* ============ 标签筛选外观 ============ */
  .filter-bar{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    padding:18px 20px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    align-items:center;
  }
  .filter-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:36px;
    padding:0 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#F7F9FE;
    color:var(--muted);
    font-size:14px;
    font-weight:500;
    transition:color .18s ease,border-color .18s ease,background-color .18s ease;
  }
  .filter-chip.is-active{
    background:var(--brand);
    border-color:var(--brand);
    color:#fff;
    font-weight:600;
    box-shadow:0 8px 18px rgba(29,91,216,.22);
  }
  .filter-hint{
    margin-left:auto;
    font-size:13.5px;
    color:var(--disabled);
  }
  @media (max-width:767px){
    .filter-hint{margin-left:0;width:100%;}
  }

  /* ============ 玩法卡片 ============ */
  .game-card{
    height:100%;
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .game-card:hover{
    transform:translateY(-4px);
    border-color:rgba(29,91,216,.35);
    box-shadow:var(--shadow-card-hover);
  }
  .game-card img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    border-radius:var(--radius-img);
    margin-bottom:18px;
  }
  .game-card h3{
    font-size:19px;
    line-height:1.5;
    font-weight:600;
    color:var(--brand-dark);
  }
  .game-card p{
    margin-top:10px;
    color:var(--muted);
    font-size:15px;
    line-height:1.75;
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:16px;
    padding-top:16px;
    border-top:1px solid var(--line);
  }
  .card-index{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:26px;height:26px;
    border-radius:8px;
    background:rgba(29,91,216,.1);
    color:var(--brand);
    font-size:12.5px;
    font-weight:700;
    font-family:var(--font-num);
    margin-right:8px;
  }
  .card-title-row{display:flex;align-items:flex-start;}

  /* ============ 指标行 ============ */
  .metrics{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:28px;
    box-shadow:var(--shadow-card);
  }
  .metric-num{
    font-family:var(--font-num);
    font-variant-numeric:tabular-nums;
    font-size:clamp(26px,3vw,34px);
    font-weight:700;
    color:var(--brand);
    line-height:1.2;
  }
  .metric-num small{font-size:15px;font-weight:600;margin-left:2px;}
  .metric-label{
    margin-top:6px;
    font-size:14px;
    color:var(--muted);
  }
  @media (max-width:1023px){
    .metrics{grid-template-columns:repeat(2,1fr);}
  }
  @media (max-width:479px){
    .metrics{grid-template-columns:1fr;padding:22px;}
  }

  /* ============ 表格 ============ */
  .table-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .table-scroll{overflow-x:auto;}
  table.spec-table{
    width:100%;
    min-width:720px;
    border-collapse:collapse;
    font-size:15px;
  }
  table.spec-table thead th{
    background:#EEF3FD;
    color:var(--brand-dark);
    font-weight:600;
    font-size:14.5px;
    text-align:left;
    padding:16px 20px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  table.spec-table td{
    padding:16px 20px;
    border-bottom:1px solid var(--line);
    color:var(--ink);
    vertical-align:top;
  }
  table.spec-table tbody tr:nth-child(even){background:#F9FBFF;}
  table.spec-table tbody tr:last-child td{border-bottom:0;}
  table.spec-table tbody tr:hover{background:#F2F6FD;}
  .cell-strong{font-weight:600;color:var(--brand-dark);}
  .cell-soft{color:var(--muted);}
  .table-note{
    padding:16px 20px;
    border-top:1px solid var(--line);
    background:#FBFCFE;
    color:var(--muted);
    font-size:13.5px;
  }

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item.is-open{border-color:rgba(29,91,216,.32);box-shadow:var(--shadow-card-hover);}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    text-align:left;
    padding:20px 24px 20px 28px;
    font-size:17px;
    font-weight:600;
    color:var(--brand-dark);
    position:relative;
  }
  .faq-q::before{
    content:"";
    position:absolute;
    left:14px;top:50%;
    transform:translateY(-50%);
    width:4px;height:22px;
    border-radius:999px;
    background:var(--brand);
  }
  .faq-icon{
    flex:0 0 auto;
    width:28px;height:28px;
    border-radius:50%;
    background:rgba(29,91,216,.1);
    color:var(--brand);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
    transition:transform .22s ease,background-color .22s ease,color .22s ease;
  }
  .faq-item.is-open .faq-icon{
    transform:rotate(45deg);
    background:var(--brand);
    color:#fff;
  }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .22s ease;
  }
  .faq-a-inner{
    padding:0 24px 22px 28px;
    color:var(--muted);
    font-size:15.5px;
    line-height:1.8;
  }

  /* ============ CTA ============ */
  .cta-band{
    position:relative;
    background:#EEF3FD;
    border:1px solid rgba(29,91,216,.16);
    border-radius:var(--radius-lg);
    padding:clamp(28px,4vw,48px);
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;top:-60px;
    width:240px;height:240px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(29,91,216,.14),transparent 70%);
  }
  .cta-band h2{
    font-size:clamp(22px,2.6vw,28px);
    font-weight:700;
    color:var(--brand-dark);
    line-height:1.35;
  }
  .cta-band p{
    margin-top:12px;
    max-width:42em;
    color:var(--muted);
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:24px;
    align-items:center;
  }
  .cta-note{font-size:13.5px;color:var(--muted);}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:var(--gap-section);
    background:var(--brand-deep);
    color:#C6D2E6;
    padding:clamp(40px,5vw,64px) 0 26px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.3fr;
    gap:36px;
    padding-bottom:34px;
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:700;
    color:#fff;
    margin-bottom:14px;
  }
  .footer-brand .brand-mark{
    background:linear-gradient(140deg,#2C6BE6,#10367F);
    box-shadow:none;
  }
  .footer-desc{
    font-size:14px;
    line-height:1.8;
    color:#93A4BF;
    max-width:34em;
  }
  .footer-col h3{
    font-size:15px;
    font-weight:600;
    color:#fff;
    margin-bottom:16px;
  }
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul a{
    font-size:14px;
    color:#93A4BF;
    transition:color .18s ease;
  }
  .footer-col ul a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
  .footer-note{
    font-size:13.5px;
    line-height:1.8;
    color:#93A4BF;
    margin-bottom:14px;
  }
  .search-form{
    display:flex;
    align-items:center;
    background:#fff;
    border-radius:var(--radius-btn);
    overflow:hidden;
    max-width:340px;
  }
  .search-form input{
    flex:1;
    height:44px;
    border:1px solid #D8E1F0;
    border-right:0;
    border-radius:var(--radius-btn) 0 0 var(--radius-btn);
    padding:0 14px;
    font-size:14px;
    font-family:inherit;
    color:var(--ink);
    background:#fff;
    min-width:0;
  }
  .search-form input::placeholder{color:var(--disabled);}
  .search-form input:focus{
    outline:none;
    border-color:var(--brand);
    box-shadow:0 0 0 4px rgba(29,91,216,.12);
  }
  .search-form button{
    height:44px;
    padding:0 16px;
    background:var(--brand);
    color:#fff;
    font-size:14px;
    font-weight:600;
    border-radius:0 var(--radius-btn) var(--radius-btn) 0;
    transition:background-color .18s ease;
  }
  .search-form button:hover{background:#1a51c2;}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px;
    padding-top:20px;
    font-size:13px;
    color:#93A4BF;
  }

  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:639px){
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
    .hero-actions .btn{width:100%;}
    .cta-actions .btn{width:100%;}
  }

  /* 通用小组件 */
  .mini-list li{
    display:flex;
    gap:10px;
    align-items:flex-start;
    font-size:15px;
    color:var(--muted);
    padding:10px 0;
    border-bottom:1px dashed var(--line);
  }
  .mini-list li:last-child{border-bottom:0;}
  .mini-list i{color:var(--teal);margin-top:5px;}
  .panel{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px;
    box-shadow:var(--shadow-card);
  }
  .panel h3{
    font-size:19px;
    font-weight:600;
    color:var(--brand-dark);
    margin-bottom:12px;
  }
  .panel p{color:var(--muted);font-size:15px;}

/* roulang page: category4 */
:root{
  --brand:#1D5BD8;
  --brand-dark:#1748AC;
  --brand-deep:#10367F;
  --orange:#FF7A45;
  --teal:#12A594;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6ECF6;
  --ink:#14213D;
  --muted:#5A6B87;
  --disabled:#A9B6CA;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-btn:10px;
  --sh-1:0 8px 24px rgba(23,58,116,.06);
  --sh-2:0 16px 36px rgba(23,58,116,.12);
  --sh-3:0 24px 48px rgba(16,54,127,.16);
  --sp:clamp(56px,7vw,104px);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;color:var(--brand-deep);font-weight:700;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
input{outline:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* 容器 */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.wrap{padding:0 32px}}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(23,58,116,.08)}
.header-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:11px;color:var(--brand-deep);font-weight:700;font-size:17px;letter-spacing:.01em}
.brand:hover{color:var(--brand-deep)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 6px 16px rgba(29,91,216,.28);
}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink);
}
.nav-link:hover{color:var(--brand);background:#EFF4FE}
.nav-link.is-active{color:var(--brand);background:#EFF4FE;font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:20px;height:3px;border-radius:3px;background:var(--brand);
}
.nav-cta{
  margin-left:10px;display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(29,91,216,.22);transition:all .22s ease;
}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px rgba(29,91,216,.28)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand-deep);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{background:#EFF4FE;color:var(--brand)}

.nav-drawer{
  position:fixed;top:0;right:0;z-index:120;
  width:min(86vw,360px);height:100%;
  background:#fff;transform:translateX(102%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 22px 28px;
  box-shadow:var(--sh-3);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:700;color:var(--brand-deep)}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--brand-deep);font-size:16px;cursor:pointer;
}
.drawer-close:hover{background:#EFF4FE}
.drawer-links{display:flex;flex-direction:column;padding:10px 0;flex:1}
.drawer-links a{
  font-size:17px;font-weight:500;color:var(--ink);
  padding:15px 4px;border-bottom:1px solid var(--line);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--brand)}
.drawer-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:48px;border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:16px;font-weight:600;
}
.drawer-cta:hover{background:var(--brand-dark);color:#fff}
.drawer-mask{
  position:fixed;inset:0;z-index:110;background:rgba(16,35,63,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:all .22s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(29,91,216,.22)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(29,91,216,.3)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:#EFF4FE;color:var(--brand-deep);transform:translateY(-2px)}
.btn-block{width:100%}
.link-underline{font-weight:600;box-shadow:inset 0 -2px 0 rgba(29,91,216,.3);padding-bottom:2px}
.link-underline:hover{box-shadow:inset 0 -2px 0 var(--brand)}

/* Hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(255,255,255,.93))}
.hero-bg::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(29,91,216,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;
}
.hero-inner{position:relative;padding:clamp(40px,5.5vw,76px) 0 clamp(44px,6vw,84px)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#B9C5D8}
.crumbs .now{color:var(--brand-deep);font-weight:600}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:rgba(29,91,216,.1);
  color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-badge i{font-size:12px}
.hero-title{
  font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;
  max-width:880px;margin-bottom:18px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:660px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:479px){
  .hero-actions .btn{width:100%}
}

/* 指标条 */
.metric-strip{padding:0 0 var(--sp)}
.metric-grid{
  display:grid;grid-template-columns:1fr;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);margin-top:-34px;position:relative;z-index:2;
}
@media (min-width:640px){.metric-grid{grid-template-columns:repeat(2,1fr);gap:20px 24px}}
@media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr);padding:30px 34px}}
.metric-item{display:flex;flex-direction:column;gap:4px;padding-left:16px;border-left:3px solid rgba(29,91,216,.16)}
.metric-item:nth-child(2){border-left-color:rgba(255,122,69,.35)}
.metric-item:nth-child(3){border-left-color:rgba(18,165,148,.35)}
.metric-item:nth-child(4){border-left-color:rgba(29,91,216,.16)}
.metric-num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.2}
.metric-label{font-size:14px;color:var(--muted)}

/* 通用板块 */
.section{padding:0 0 var(--sp)}
.section-head{max-width:780px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:rgba(29,91,216,.1);
  color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.05em;margin-bottom:14px;
}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;margin-bottom:12px}
.section-desc{font-size:16px;color:var(--muted);max-width:720px}

/* 速查卡片 */
.qa-card{
  height:100%;display:flex;flex-direction:column;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.qa-card:hover{transform:translateY(-4px);border-color:rgba(29,91,216,.35);box-shadow:var(--sh-2)}
.qa-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.qa-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(29,91,216,.1);color:var(--brand);font-size:17px;
}
.qa-card:nth-child(2) .qa-icon{background:rgba(255,122,69,.12);color:#E2611F}
.qa-card:nth-child(3) .qa-icon{background:rgba(18,165,148,.12);color:var(--teal)}
.qa-card h3{font-size:19px;line-height:1.5}
.qa-card p{font-size:15px;color:var(--muted);line-height:1.75}
.qa-card .qa-link{margin-top:auto;font-size:14.5px;font-weight:600}

.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
  background:rgba(29,91,216,.1);color:var(--brand);
}
.tag-orange{background:rgba(255,122,69,.14);color:#D9551B}
.tag-teal{background:rgba(18,165,148,.14);color:#0D8175}

/* 双栏长文 */
.layout-2col{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start}
@media (min-width:1024px){
  .layout-2col{grid-template-columns:minmax(0,7.6fr) minmax(0,4.4fr);gap:40px}
}
.prose{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,3vw,40px);box-shadow:var(--sh-1);
}
.prose-block{padding-top:34px;margin-top:34px;border-top:1px solid var(--line);scroll-margin-top:110px}
.prose-block:first-child{padding-top:0;margin-top:0;border-top:0}
.prose h2{font-size:clamp(20px,2.2vw,25px);line-height:1.4;margin-bottom:16px;display:flex;gap:12px;align-items:flex-start}
.prose h2 .idx{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--brand);
  background:rgba(29,91,216,.1);border-radius:8px;padding:3px 9px;margin-top:4px;
  letter-spacing:.04em;
}
.prose h3{font-size:19px;line-height:1.5;margin:26px 0 12px}
.prose p{font-size:16.5px;line-height:1.85;color:var(--muted);margin-bottom:18px;max-width:780px}
.prose p strong{color:var(--ink);font-weight:600}
.prose .lead{color:var(--ink);font-size:17px}

.tick-list{margin:0 0 20px;max-width:780px}
.tick-list li{
  position:relative;padding-left:28px;margin-bottom:10px;
  font-size:15.5px;color:var(--muted);line-height:1.8;
}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:8px;height:8px;border-radius:50%;background:var(--teal);
}
.tick-list li strong{color:var(--ink);font-weight:600}

.prose-figure{margin:26px 0 30px;max-width:780px}
.prose-figure img{width:100%;border-radius:var(--r-img);border:1px solid var(--line)}
.prose-figure figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px}

.quote{
  max-width:780px;border-left:3px solid var(--brand);background:#F3F7FE;
  border-radius:0 14px 14px 0;padding:16px 20px;margin:0 0 22px;
  font-size:15.5px;color:var(--brand-deep);line-height:1.8;
}

/* 侧栏 */
.side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side{position:sticky;top:96px}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--brand);font-size:14px}
.toc{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--muted);
}
.toc a:hover{background:#EFF4FE;color:var(--brand)}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:#C6D3E8;transition:background .2s ease}
.toc a:hover::before{background:var(--brand)}
.side-entry{background:linear-gradient(180deg,#F5F9FF,#FFFFFF)}
.side-entry p{font-size:14.5px;color:var(--muted);margin:10px 0 18px}
.side-hint{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-top:14px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto}

/* 时间线 */
.timeline{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.timeline{grid-template-columns:repeat(2,1fr);gap:20px}}
.tl-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(29,91,216,.3)}
.tl-num{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(29,91,216,.1);color:var(--brand);font-size:16px;font-weight:700;
}
.tl-item:nth-child(2) .tl-num{background:rgba(255,122,69,.14);color:#D9551B}
.tl-item:nth-child(3) .tl-num{background:rgba(18,165,148,.14);color:#0D8175}
.tl-item h3{font-size:17.5px;margin-bottom:8px}
.tl-item p{font-size:15px;color:var(--muted);line-height:1.75}

/* FAQ */
.faq-list{max-width:900px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item:hover{border-color:rgba(29,91,216,.3);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:22px 24px;font-size:17px;font-weight:600;color:var(--brand-deep);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";flex:0 0 4px;align-self:stretch;min-height:22px;border-radius:3px;background:var(--brand);margin-top:3px;
}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--brand);
  line-height:1;transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 24px 24px 42px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:780px}
.faq-body p{margin-bottom:12px}
.faq-body p:last-child{margin-bottom:0}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;
  background:
    radial-gradient(560px 260px at 88% 12%,rgba(29,91,216,.12),transparent 70%),
    radial-gradient(420px 220px at 6% 88%,rgba(255,122,69,.1),transparent 70%),
    #EAF1FE;
  border:1px solid #D9E4F8;border-radius:var(--r-lg);
  padding:clamp(30px,5vw,56px);
  display:flex;flex-direction:column;gap:24px;
}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{font-size:16px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
@media (max-width:479px){.cta-actions .btn{width:100%}}

/* 页脚 */
.site-footer{background:#10233F;color:#C7D3E6;padding:64px 0 0;margin-top:var(--sp)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.5fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;font-size:14px;box-shadow:none}
.footer-desc{font-size:14.5px;color:#93A4BF;line-height:1.8;max-width:330px}
.footer-col h3{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#C7D3E6;font-size:14.5px}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-note{font-size:14px;color:#93A4BF;line-height:1.8}
.search-form{display:flex;margin-top:16px;max-width:340px}
.search-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;font-size:14.5px;
  background:#16294A;border:1px solid #2A3E60;border-right:0;
  border-radius:10px 0 0 10px;color:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:#7C8DAE}
.search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(29,91,216,.2)}
.search-form button{
  height:44px;padding:0 18px;border:0;border-radius:0 10px 10px 0;
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease;
}
.search-form button:hover{background:var(--brand-dark)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#93A4BF;
}

@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
}
@media (min-width:1024px){
  .nav-drawer,.drawer-mask{display:none}
}