/* roulang page: index */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEDE7;
  --mint:#12A594;
  --mint-100:#E4F6F3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(18,60,110,.08);
  --shadow-lg:0 14px 36px rgba(18,60,110,.12);
  --container:1200px;
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:64px;
  --sp-8:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.nums{font-variant-numeric:tabular-nums;}

/* ---------- 公告条 ---------- */
.announce{
  background:var(--brand-100);
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.announce-inner{
  display:flex;align-items:center;gap:18px;
  min-height:40px;padding:6px 24px;max-width:var(--container);margin:0 auto;
}
.announce-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);color:var(--brand-700);
  border-radius:var(--radius-pill);padding:2px 12px;font-size:12.5px;font-weight:600;white-space:nowrap;
}
.announce-pill i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.announce-text{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.announce-count{margin-left:auto;display:flex;align-items:center;gap:10px;}
.cd-group{display:flex;align-items:center;gap:6px;}
.cd-cell{
  width:34px;height:34px;border-radius:8px;background:#fff;border:1px solid var(--line);
  display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1;
}
.cd-num{font-size:14px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.cd-label{font-size:9px;color:var(--ink-3);margin-top:2px;line-height:1;}
.announce-link{font-size:13.5px;font-weight:600;white-space:nowrap;}
.announce-close{
  border:0;background:transparent;color:var(--ink-3);font-size:18px;line-height:1;
  padding:2px 4px;border-radius:6px;
}
.announce-close:hover{color:var(--ink);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(18,60,110,.08);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.logo:hover{color:var(--brand-700);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:19px;height:19px;stroke:#fff;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.main-nav a:hover{color:var(--brand-600);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand-600);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 12px;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;box-shadow:0 0 0 3px var(--mint-100);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  line-height:1.2;white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:14px 30px;font-size:16px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-600);}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(23,104,196,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.55;pointer-events:none;
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;
  align-items:center;padding:72px 24px 80px;max-width:var(--container);margin:0 auto;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--radius-pill);padding:5px 14px;font-size:12.5px;font-weight:600;margin-bottom:20px;
}
.hero h1{font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;color:var(--ink);}
.hero-sub{margin-top:18px;font-size:16px;color:var(--ink-2);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.metric{
  display:inline-flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:7px 14px;font-size:13px;color:var(--ink-2);
}
.metric svg{width:16px;height:16px;stroke:var(--brand-600);flex:0 0 auto;}
.hero-visual{position:relative;}
.hero-img{
  position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-lg);aspect-ratio:16/10;background:var(--brand-100);
}
.hero-img img{width:100%;height:100%;object-fit:cover;}
.hero-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,35,68,0) 45%,rgba(9,35,68,.55) 100%);
}
.hero-img-cap{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;color:#fff;
}
.hero-img-cap strong{display:block;font-size:16px;font-weight:700;}
.hero-img-cap span{font-size:13px;opacity:.85;}
.float-card{
  position:absolute;left:-22px;bottom:-24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-lg);padding:16px 20px;min-width:196px;
}
.float-card .fc-label{font-size:12.5px;color:var(--ink-3);}
.float-card .fc-value{font-size:22px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;margin-top:2px;}
.float-card .fc-line{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--mint);margin-top:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--brand-600);text-transform:uppercase;
}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-top:10px;}
.section-desc{margin-top:14px;color:var(--ink-2);font-size:15.5px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}

/* ---------- 优惠阶梯 ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start;}
.ladder-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px 24px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  border-top:3px solid var(--brand-100);
}
.ladder-card:nth-child(1){border-top-color:#8FB6E4;}
.ladder-card:nth-child(2){border-top-color:#4F91D8;}
.ladder-card:nth-child(3){border-top-color:var(--brand-600);}
.ladder-card:nth-child(4){border-top-color:var(--brand-700);}
.ladder-card:nth-child(2),.ladder-card:nth-child(4){margin-top:12px;}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE1F5;}
.ladder-num{
  display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);background:var(--accent-100);color:var(--accent);font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.ladder-card h3{font-size:19px;font-weight:600;margin-top:16px;}
.ladder-for{font-size:13.5px;color:var(--ink-3);margin-top:6px;}
.ladder-list{margin-top:18px;display:grid;gap:10px;}
.ladder-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.ladder-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:2px;border-radius:2px;background:var(--brand-600);
}
.ladder-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);}

/* ---------- 套餐对比 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:stretch;}
.plan-card{
  position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE1F5;}
.plan-card.featured{background:var(--brand-100);border-color:#BCD8F3;}
.plan-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--brand-600);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 14px;border-radius:var(--radius-pill);white-space:nowrap;
}
.plan-card h3{font-size:19px;font-weight:600;}
.plan-price{margin-top:14px;font-size:26px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.plan-price span{font-size:13.5px;font-weight:500;color:var(--ink-3);margin-left:6px;}
.plan-note{font-size:13.5px;color:var(--ink-2);margin-top:8px;min-height:44px;}
.plan-features{margin-top:18px;display:grid;gap:10px;flex:1;}
.plan-features li{display:flex;gap:9px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.plan-features svg{width:17px;height:17px;flex:0 0 auto;margin-top:5px;stroke:var(--mint);}
.plan-features li.muted svg{stroke:var(--ink-3);}
.plan-features li.muted{color:var(--ink-3);}
.plan-foot{margin-top:24px;display:grid;gap:10px;}
.compare-note{
  margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 24px;
}
.compare-note p{font-size:14px;color:var(--ink-2);}

/* ---------- 限时横幅 ---------- */
.banner{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  padding:30px 32px;display:flex;align-items:center;gap:28px;justify-content:space-between;flex-wrap:wrap;
}
.banner h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;}
.banner p{margin-top:8px;color:var(--ink-2);font-size:14.5px;}
.banner-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.banner-cd{
  display:flex;align-items:center;gap:8px;background:var(--accent-100);border-radius:var(--radius-pill);padding:7px 16px;
  font-size:13.5px;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums;
}
.banner-cd svg{width:16px;height:16px;stroke:var(--accent);}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#CFE1F5;}
.post-media{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden;}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-media img{transform:scale(1.04);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--radius-pill);padding:3px 12px;font-size:12.5px;font-weight:600;
}
.post-title{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-title{color:var(--brand-600);}
.post-excerpt{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3);
}
.post-meta svg{width:16px;height:16px;stroke:var(--brand-600);}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;color:var(--ink-3);font-size:14.5px;
}
.empty-state svg{width:26px;height:26px;stroke:var(--ink-3);margin:0 auto 12px;}

/* ---------- 信任条 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.trust-item{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
}
.section-alt .trust-item{background:var(--bg);}
.trust-item .ti-num{font-size:24px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.trust-item h3{font-size:16px;font-weight:600;margin-top:10px;}
.trust-item p{font-size:14px;color:var(--ink-2);margin-top:8px;}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item[open] summary{color:var(--brand-600);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- 咨询表单 ---------- */
.consult-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-sm);
}
.form-card h3{font-size:20px;font-weight:600;}
.form-card > p{margin-top:8px;font-size:14.5px;color:var(--ink-2);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px;}
.field{display:grid;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:500;color:var(--ink);}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 14px;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,196,.12);
}
.check{display:flex;align-items:flex-start;gap:10px;grid-column:1/-1;font-size:13.5px;color:var(--ink-2);}
.check input{width:16px;height:16px;height:16px;margin-top:4px;flex:0 0 auto;accent-color:var(--brand-600);}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:4px;}
.side-stack{display:grid;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-sm);}
.side-card h3{font-size:17px;font-weight:600;}
.side-list{margin-top:16px;display:grid;gap:14px;}
.side-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.side-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;stroke:var(--mint);}
.side-card .resp{
  margin-top:18px;padding:14px 16px;background:var(--brand-100);border-radius:var(--radius-btn);
  font-size:13.5px;color:var(--brand-700);
}
.side-card.dark{background:var(--ink);border-color:var(--ink);color:#fff;}
.side-card.dark h3{color:#fff;}
.side-card.dark p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.72);}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-2);max-width:280px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand-600);}
.footer-col li span{font-size:14px;color:var(--ink-2);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom .fb-links{display:flex;gap:18px;flex-wrap:wrap;}
.back-top{display:inline-flex;align-items:center;gap:6px;color:var(--ink-2);font-size:13px;}
.back-top svg{width:15px;height:15px;stroke:currentColor;transition:transform .2s ease;}
.back-top:hover{color:var(--brand-600);}
.back-top:hover svg{transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .post-grid{grid-template-columns:repeat(3,1fr);}
  .ladder-grid{grid-template-columns:repeat(2,1fr);}
  .ladder-card:nth-child(2),.ladder-card:nth-child(4){margin-top:0;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:56px 24px 72px;}
  .hero-sub{max-width:none;}
  .hero-visual{max-width:660px;}
  .float-card{left:16px;bottom:16px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .consult-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-header.nav-open .main-nav{
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    padding:12px 24px 20px;box-shadow:var(--shadow-lg);
  }
  .site-header.nav-open .main-nav a{width:100%;padding:12px 0;border-bottom:1px solid var(--line);}
  .site-header.nav-open .main-nav a::after{display:none;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .container{padding:0 16px;}
  .announce-text{display:none;}
  .announce-inner{padding:6px 16px;gap:10px;}
  .announce-link{display:none;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .ladder-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .banner{padding:24px;}
  .banner-right{width:100%;justify-content:space-between;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .form-actions{justify-content:stretch;}
  .form-actions .btn{width:100%;}
  .status-badge{display:none;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .post-grid{grid-template-columns:1fr;}
  .hero-inner{padding:44px 16px 60px;}
  .hero-cta .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .nav-inner{height:60px;}
  .logo{font-size:17px;}
  .cd-cell{width:30px;height:30px;}
  .cd-num{font-size:13px;}
  .section-head{margin-bottom:32px;}
}

/* roulang page: article */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEDE7;
  --mint:#12A594;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 6px 18px rgba(18,60,110,.08);
  --shadow-lg:0 14px 36px rgba(18,60,110,.12);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部公告条 ---------- */
.topbar{background:var(--brand-100);border-bottom:1px solid var(--line);font-size:13.5px}
.topbar-inner{display:flex;align-items:center;gap:16px;min-height:40px;padding:6px 24px}
.topbar-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--accent-100);color:#C6451F;font-size:12.5px;font-weight:600;white-space:nowrap;
}
.topbar-text{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.countdown{display:flex;align-items:center;gap:6px}
.cd-box{
  width:34px;height:34px;border-radius:8px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
  font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.cd-unit{font-size:12.5px;color:var(--ink-3);margin-right:2px}
.topbar-link{color:var(--brand-600);font-weight:600;white-space:nowrap}
.topbar-link:hover{color:var(--brand-700)}
.topbar-close{
  width:26px;height:26px;line-height:1;border:1px solid var(--line);background:#fff;color:var(--ink-3);
  border-radius:8px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;
  transition:.2s;
}
.topbar-close:hover{color:var(--brand-600);border-color:var(--brand-600)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px;stroke:var(--brand-600)}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .2s;
}
.main-nav a:hover{color:var(--brand-600)}
.main-nav a.active{color:var(--brand-600);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand-600);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:#F1FAF8;color:#0E7F72;font-size:12.5px;font-weight:500;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:14.5px;
}
.link-arrow svg{width:16px;height:16px;stroke:var(--brand-600);transition:transform .2s}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 面包屑 ---------- */
.crumb-wrap{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);
  padding:14px 0;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C6D2DE}
.breadcrumb .current{color:var(--ink);font-weight:500;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{background:#fff;padding:40px 0 8px}
.article-head{max-width:860px}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12.5px;font-weight:600;
}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.3;margin:16px 0 16px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:13.5px;color:var(--ink-3);
  padding-bottom:26px;border-bottom:1px solid var(--line);
}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row svg{width:16px;height:16px;stroke:var(--ink-3)}
.cover-figure{margin:28px 0 0}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line)}
.cover-figure figcaption{font-size:13px;color:var(--ink-3);margin-top:10px}

/* ---------- 正文 ---------- */
.article-main{padding:44px 0 72px}
.article-body{
  max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:44px 48px;font-size:16px;line-height:1.9;color:#26323F;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(20px,2.2vw,24px);font-weight:700;line-height:1.4;margin:40px 0 16px;
  padding-left:14px;border-left:3px solid var(--brand-600);
}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;color:var(--ink)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--brand-600)}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-700)}
.article-body blockquote{
  margin:0 0 20px;padding:16px 20px;background:var(--brand-100);border-left:3px solid var(--brand-600);
  border-radius:0 10px 10px 0;color:var(--ink-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:6px 0 10px;border:1px solid var(--line)}
.article-body figure{margin:0 0 22px}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body table{
  width:100%;display:block;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:0 0 22px;
}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#F7FAFD;font-weight:600;color:var(--brand-700)}
.article-body code{background:#EEF3F9;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-700)}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:680px;margin:0 auto;text-align:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:64px 32px;
}
.empty-state svg{width:44px;height:44px;stroke:var(--ink-3);margin:0 auto 16px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--ink-2);margin-bottom:22px}

/* ---------- 文章尾部 ---------- */
.article-foot{max-width:820px;margin:32px auto 0}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13px;transition:.2s;
}
.tag:hover{border-color:var(--brand-600);color:var(--brand-600)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0 0}
.post-nav-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-sm);transition:.2s;
}
.post-nav-item:hover{border-color:var(--brand-600);box-shadow:var(--shadow-lg);transform:translateY(-1px)}
.pn-label{display:block;font-size:12.5px;color:var(--ink-3);margin-bottom:6px}
.pn-title{display:block;font-size:15px;font-weight:600;color:var(--ink)}
.post-nav-item.next{text-align:right}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(21px,2.4vw,30px);font-weight:700}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:.2s;
}
.card:hover{border-color:#BBD6F2;box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body .pill{align-self:flex-start}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover h3{color:var(--brand-600)}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.7;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.card-meta svg{width:16px;height:16px;stroke:var(--brand-600);transition:transform .2s}
.card:hover .card-meta svg{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta{background:var(--brand-700);border-radius:18px;padding:44px 48px;color:#fff;display:grid;
  grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.cta h2{color:#fff;font-size:clamp(21px,2.4vw,28px);line-height:1.35;margin-bottom:12px}
.cta p{color:#CFE2F7;margin:0;font-size:15px}
.cta-points{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}
.cta-points span{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#E4EFFB;
  background:rgba(255,255,255,.12);border-radius:999px;padding:6px 14px;
}
.cta-points i{width:6px;height:6px;border-radius:50%;background:#7FE3D6;display:inline-block}
.form-card{background:#fff;border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-lg)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:500;color:var(--ink)}
.field label em{color:var(--accent);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  height:46px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:0 14px;
  background:#fff;color:var(--ink);transition:.2s;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,196,.12);
}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;flex-wrap:wrap}
.form-note{font-size:13px;color:var(--ink-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{font-size:14px;color:var(--ink-2);margin:14px 0 0;max-width:300px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2);transition:color .2s}
.footer-col a:hover{color:var(--brand-600)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}
.fb-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.fb-links a{color:var(--ink-3)}
.fb-links a:hover{color:var(--brand-600)}
.back-top{display:inline-flex;align-items:center;gap:6px}
.back-top svg{width:15px;height:15px;stroke:var(--ink-3)}
.back-top:hover svg{stroke:var(--brand-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
  .status-badge{display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta{grid-template-columns:1fr;padding:36px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-body{padding:36px 32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar-text,.topbar-link{display:none}
  .topbar-inner{padding:6px 16px}
  .topbar-right{margin-left:auto}
  .nav-inner{min-height:60px;gap:12px}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 16px 16px;
    box-shadow:var(--shadow-sm);display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{width:100%;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
  .main-nav a:last-child{border-bottom:0}
  .main-nav a.active::after{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13.5px}
  .site-header{position:relative}
  .section{padding:52px 0}
  .article-main{padding:32px 0 52px}
  .article-hero{padding:28px 0 4px}
  .article-body{padding:24px 20px;font-size:15.5px;border-radius:12px}
  .card-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left}
  .cta{padding:28px 20px;border-radius:14px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .cd-box{width:30px;height:30px;font-size:13px}
  .breadcrumb .current{max-width:180px}
  .section-head{flex-direction:column;align-items:flex-start}
  .btn{padding:11px 18px;font-size:14.5px}
}

/* roulang page: category1 */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEEE8;
  --mint:#12A594;
  --mint-100:#E4F6F3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --deep:#0E2B4C;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 6px 18px rgba(18,60,110,.08);
  --shadow-2:0 14px 36px rgba(18,60,110,.12);
  --container:1200px;
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:64px;
  --sp-8:96px;
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{padding:0;list-style:none}
svg{stroke:currentColor;fill:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sp-8) 0}
.section-tight{padding:var(--sp-7) 0}
.section-head{max-width:780px;margin-bottom:var(--sp-6)}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;color:var(--ink);
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.hl{color:var(--brand-600)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(18,60,110,.08)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--brand-100);color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px;stroke-width:1.6}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.main-nav{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--brand-600);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform var(--ease);
}
.main-nav a:hover{color:var(--brand-600)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--brand-600);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--ink-2);
  background:var(--bg);border:1px solid var(--line);
  border-radius:999px;padding:6px 12px;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;transition:border-color var(--ease),color var(--ease);
}
.nav-toggle svg{width:22px;height:22px;stroke-width:1.6}
.nav-toggle:hover{border-color:var(--brand-600);color:var(--brand-600)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,.nav-toggle:focus-visible{
  outline:2px solid var(--brand-600);outline-offset:2px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-600);
}
.link-arrow svg{width:16px;height:16px;stroke-width:1.8;transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,32,60,.90) 0%,rgba(10,42,78,.72) 48%,rgba(10,42,78,.38) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
  padding:78px 0 84px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.hero-badges span{
  font-size:12.5px;color:#fff;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);border-radius:999px;padding:5px 13px;
}
.hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;
  letter-spacing:-.01em;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:600px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:rgba(255,255,255,.9)}
.hero-points svg{width:18px;height:18px;stroke-width:1.6;color:#7FD9CF}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid rgba(255,255,255,.22);
  box-shadow:0 24px 60px rgba(4,20,40,.38);
}
.float-card{
  position:absolute;left:-18px;bottom:-20px;width:240px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:16px 18px;color:var(--ink);
}
.float-card strong{display:block;font-size:15px;font-weight:700}
.float-card span{display:block;margin-top:4px;font-size:13px;color:var(--ink-2);line-height:1.6}
.float-card .mini-bar{margin-top:12px;height:6px;border-radius:999px;background:var(--brand-100);overflow:hidden}
.float-card .mini-bar i{display:block;height:100%;width:72%;background:var(--brand-600);border-radius:999px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding:14px 0;flex-wrap:wrap}
.crumb a{color:var(--ink-3);transition:color var(--ease)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink);font-weight:500}

/* ---------- facts ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.fact{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.fact:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE1F4}
.fact .ico{
  width:40px;height:40px;border-radius:10px;background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.fact .ico svg{width:20px;height:20px;stroke-width:1.6}
.fact h3{font-size:17px;font-weight:600;line-height:1.4}
.fact p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---------- split rows ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;border-top:1px solid var(--line);
}
.split:first-of-type{border-top:none;padding-top:0}
.split.reverse .split-media{order:-1}
.split-body .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;color:var(--accent);
  background:var(--accent-100);border-radius:999px;padding:5px 12px;margin-bottom:16px;
}
.split-body h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.32;letter-spacing:-.01em}
.split-body > p{margin-top:14px;color:var(--ink-2);font-size:16px}
.point-list{margin-top:22px;display:grid;gap:14px}
.point-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink);line-height:1.7}
.point-list .tick{
  flex:0 0 auto;margin-top:5px;width:18px;height:18px;border-radius:50%;
  background:var(--mint-100);color:var(--mint);
  display:flex;align-items:center;justify-content:center;
}
.point-list .tick svg{width:12px;height:12px;stroke-width:2}
.split-body .link-arrow{margin-top:24px}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.media-plate{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:14px;box-shadow:var(--shadow-1);
}
.media-plate .plate-tag{
  position:absolute;left:26px;bottom:26px;background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  font-size:12.5px;font-weight:600;color:var(--brand-700);
}

/* ---------- flow ---------- */
.flow{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.step{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 18px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.step:hover{transform:translateY(-3px);background:#fff;box-shadow:var(--shadow-2)}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:16px;font-weight:600}
.step p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.7}

/* ---------- trust dark ---------- */
.trust{background:var(--deep);color:#fff}
.trust .section-head h2{color:#fff}
.trust .section-head p{color:rgba(255,255,255,.74)}
.trust .eyebrow{background:rgba(255,255,255,.12);color:#9FD0FF}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.trust-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-card);padding:24px;
  transition:background var(--ease),transform var(--ease);
}
.trust-card:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.trust-card h3{font-size:17px;font-weight:600;color:#fff}
.trust-card p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.74);line-height:1.75}
.trust-card .dot{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;
  color:#7FD9CF;margin-bottom:14px;
}
.trust-card .dot i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-600)}
.faq-item[open] summary{color:var(--brand-600)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transition:transform var(--ease);
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:720px}

/* ---------- cta ---------- */
.cta-band{padding:var(--sp-7) 0}
.cta-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  padding:40px;display:grid;grid-template-columns:1.4fr .9fr;gap:36px;align-items:center;
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.32;letter-spacing:-.01em}
.cta-card p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.cta-side{display:grid;gap:14px;justify-items:start}
.cta-side .meta{font-size:13.5px;color:var(--ink-3)}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);line-height:1.75;max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--ink)}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2);transition:color var(--ease)}
.footer-col a:hover{color:var(--brand-600)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}
.fb-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.fb-links a{color:var(--ink-3);transition:color var(--ease)}
.fb-links a:hover{color:var(--brand-600)}
.back-top{display:inline-flex;align-items:center;gap:6px}
.back-top svg{width:15px;height:15px;stroke-width:1.8}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .nav-inner{gap:18px}
  .main-nav{gap:18px}
  .main-nav a{font-size:14.5px}
  .status-badge{display:none}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:60px 0 68px}
  .hero-media{max-width:620px}
  .float-card{position:static;width:100%;margin-top:16px;box-shadow:var(--shadow-1)}
  .facts{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .trust-grid{grid-template-columns:1fr;gap:16px}
  .cta-card{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:880px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 12px 28px rgba(18,60,110,.1);
    padding:8px 24px 18px;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:15.5px}
  .main-nav a::after{display:none}
  .main-nav a:last-child{border-bottom:none}
  .split{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .split.reverse .split-media{order:0}
}
@media (max-width:768px){
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-points{gap:14px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  body{font-size:15px}
  .logo-text{font-size:17px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .flow-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-card{padding:24px}
  .cta-side{justify-items:stretch}
  .cta-side .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEFE9;
  --mint:#12A594;
  --mint-100:#E4F6F4;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 6px 18px rgba(18,60,110,.08);
  --shadow-md:0 14px 36px rgba(18,60,110,.12);
  --container:1200px;
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:64px;
  --sp-8:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-0.01em;}
h1{font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;}
h3{font-size:20px;font-weight:600;line-height:1.4;}
h4{font-size:17px;font-weight:600;line-height:1.45;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
svg{width:100%;height:100%;stroke:currentColor;fill:none;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--sp-4);}
.section{padding:var(--sp-8) 0;}
.section-tight{padding:var(--sp-7) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-5);}
.section-head .lead{max-width:720px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--radius-pill);
  padding:5px 12px;margin-bottom:var(--sp-3);
}
.section-sub{color:var(--ink-2);font-size:15.5px;margin-top:var(--sp-2);max-width:760px;}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand-600);}
.card-link svg{width:16px;height:16px;transition:transform .2s ease;}
.card-link:hover svg{transform:translateX(3px);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(18,60,110,.08);}
.nav-inner{display:flex;align-items:center;gap:var(--sp-4);height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;flex:none;border-radius:9px;
  background:var(--brand-600);color:#fff;
  display:flex;align-items:center;justify-content:center;padding:6px;
}
.logo-text{font-size:18px;letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.main-nav a:hover{color:var(--brand-600);}
.main-nav a.active{color:var(--brand-600);}
.main-nav a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:var(--sp-3);}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--ink-2);
  background:var(--mint-100);border-radius:var(--radius-pill);
  padding:5px 12px;white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:9px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;padding:9px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand-600);color:var(--brand-600);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:12px 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible,.main-nav a:focus-visible,.nav-toggle:focus-visible,a:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-600);outline-offset:2px;
}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background:#fff;border-bottom:1px solid var(--line);
  padding:var(--sp-7) 0 var(--sp-6);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(23,104,196,.05) 1px,transparent 1px),
                   linear-gradient(180deg,rgba(23,104,196,.05) 1px,transparent 1px);
  background-size:56px 56px;opacity:.7;pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:var(--sp-6);align-items:center;}
.cat-hero h1{margin:var(--sp-4) 0 var(--sp-3);}
.cat-hero .hero-lead{font-size:17px;color:var(--ink-2);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5);}
.hero-meta{display:flex;flex-wrap:wrap;gap:var(--sp-4);margin-top:var(--sp-5);}
.hero-meta div{font-size:13.5px;color:var(--ink-2);display:flex;align-items:center;gap:7px;}
.hero-meta .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-600);}
.hero-figure{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);aspect-ratio:16/10;background:var(--brand-100);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:var(--sp-4);bottom:var(--sp-4);
  background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow-md);
  padding:12px 16px;display:flex;align-items:center;gap:10px;
  font-size:13.5px;color:var(--ink);
}
.hero-float strong{color:var(--brand-600);font-variant-numeric:tabular-nums;}

/* ---------- ladder ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);align-items:start;}
.ladder-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  padding:var(--sp-5) var(--sp-4) var(--sp-4);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.ladder-item::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;border-radius:var(--radius-card) var(--radius-card) 0 0;background:var(--brand-600);opacity:.4;}
.ladder-item:nth-child(2){transform:translateY(12px);}
.ladder-item:nth-child(2)::before{opacity:.65;}
.ladder-item:nth-child(3){transform:translateY(24px);}
.ladder-item:nth-child(3)::before{opacity:.85;}
.ladder-item:nth-child(4){transform:translateY(36px);}
.ladder-item:nth-child(4)::before{opacity:1;}
.ladder-item:hover{box-shadow:var(--shadow-md);border-color:#CFE1F5;}
.ladder-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:32px;height:32px;padding:0 10px;border-radius:var(--radius-pill);
  background:var(--brand-100);color:var(--brand-600);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:var(--sp-3);
}
.ladder-item h3{margin-bottom:6px;}
.ladder-fit{font-size:13.5px;color:var(--ink-3);margin-bottom:var(--sp-3);}
.check-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);margin-bottom:8px;}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--mint);border-bottom:2px solid var(--mint);
  transform:rotate(-45deg);border-radius:1px;
}
.ladder-item .card-link{margin-top:var(--sp-3);}
.ladder-note{
  margin-top:var(--sp-8);font-size:13.5px;color:var(--ink-3);
  border-left:3px solid var(--brand-100);padding-left:14px;
}

/* ---------- compare table ---------- */
.table-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.compare-table th,.compare-table td{padding:15px 18px;text-align:left;vertical-align:top;}
.compare-table thead th{
  position:sticky;top:0;z-index:2;
  background:#FBFDFF;border-bottom:1px solid var(--line);
  font-size:14px;font-weight:700;color:var(--ink);
}
.compare-table tbody tr{border-bottom:1px solid var(--line);}
.compare-table tbody tr:last-child{border-bottom:0;}
.compare-table tbody tr:hover{background:#FAFCFF;}
.compare-table th[scope="row"]{font-weight:600;color:var(--ink);width:170px;background:#FCFDFF;}
.compare-table td{color:var(--ink-2);}
.compare-table .is-reco{background:var(--brand-100);color:var(--brand-700);position:relative;}
.compare-table td.is-reco{font-weight:600;color:var(--brand-700);}
.tag-reco{
  display:inline-block;margin-left:8px;vertical-align:2px;
  font-size:11.5px;font-weight:700;color:#fff;background:var(--brand-600);
  border-radius:var(--radius-pill);padding:2px 9px;
}
.cell-yes{color:var(--mint);font-weight:700;}
.cell-no{color:var(--ink-3);}
.compare-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--sp-3);margin-top:var(--sp-4);}
.compare-foot p{font-size:13.5px;color:var(--ink-3);max-width:680px;}

/* ---------- cost notes ---------- */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4);}
.note-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:var(--sp-4);box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.note-icon{
  width:40px;height:40px;border-radius:11px;background:var(--brand-100);color:var(--brand-600);
  padding:9px;margin-bottom:var(--sp-3);
}
.note-card h3{font-size:17px;margin-bottom:8px;}
.note-card p{font-size:14.5px;color:var(--ink-2);}
.inline-note{
  margin-top:var(--sp-4);display:flex;gap:10px;align-items:flex-start;
  background:var(--accent-100);border-radius:12px;padding:14px 16px;
  font-size:13.5px;color:#8C3A1D;
}
.inline-note svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--accent);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);counter-reset:step;}
.step{position:relative;padding-top:var(--sp-5);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:0;left:0;
  font-size:13px;font-weight:700;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--radius-pill);padding:3px 11px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--ink-2);}
.step-line{border-top:1px dashed var(--line);padding-top:var(--sp-4);}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{position:relative;width:18px;height:18px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] summary{color:var(--brand-600);}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-body{padding:0 0 20px;color:var(--ink-2);font-size:15px;line-height:1.8;}

/* ---------- cta ---------- */
.cta-band{
  background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:var(--sp-7) 0;
}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-6);align-items:start;}
.cta-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);margin-bottom:10px;}
.cta-list li::before{
  content:"";position:absolute;left:0;top:12px;width:4px;height:4px;border-radius:50%;background:var(--brand-600);
}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:var(--sp-5);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-3);}
.field{margin-bottom:var(--sp-3);}
.field label{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:6px;}
.field .req{color:var(--accent);}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 14px;height:46px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,196,.12);
}
.agree{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--ink-2);margin:var(--sp-2) 0 var(--sp-4);}
.agree input{width:16px;height:16px;margin-top:3px;flex:none;accent-color:var(--brand-600);}
.form-foot{display:flex;justify-content:flex-end;}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:var(--sp-7) 0 var(--sp-4);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-5);}
.footer-brand .logo{margin-bottom:var(--sp-3);}
.footer-brand p{font-size:14px;color:var(--ink-2);max-width:280px;}
.footer-col h4{font-size:15px;margin-bottom:var(--sp-3);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li span{font-size:14px;color:var(--ink-2);}
.footer-col ul li a:hover{color:var(--brand-600);}
.footer-bottom{
  margin-top:var(--sp-6);padding-top:var(--sp-4);border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--sp-3);
  font-size:13.5px;color:var(--ink-3);
}
.fb-links{display:flex;flex-wrap:wrap;align-items:center;gap:var(--sp-4);}
.fb-links a{color:var(--ink-3);}
.fb-links a:hover{color:var(--brand-600);}
.back-top{display:inline-flex;align-items:center;gap:6px;}
.back-top svg{width:15px;height:15px;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 var(--sp-4);}
}
@media (max-width:1024px){
  .section{padding:var(--sp-7) 0;}
  .cat-hero-grid{grid-template-columns:1fr;gap:var(--sp-5);}
  .ladder-grid{grid-template-columns:repeat(2,1fr);}
  .ladder-item,.ladder-item:nth-child(2),.ladder-item:nth-child(3),.ladder-item:nth-child(4){transform:none;}
  .ladder-note{margin-top:var(--sp-5);}
  .note-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);gap:var(--sp-5);}
  .cta-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5);}
  .compare-table thead{display:none;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:100%;}
  .compare-table tbody tr{
    border:1px solid var(--line);border-radius:var(--radius-card);
    margin:var(--sp-3);background:#fff;padding:6px 0;
  }
  .compare-table tbody tr:last-child{margin-bottom:var(--sp-3);}
  .compare-table th[scope="row"]{
    background:var(--brand-100);color:var(--brand-700);
    border-radius:10px;margin:6px 14px;padding:10px 14px;width:auto;font-size:14.5px;
  }
  .compare-table td{padding:10px 14px;border-bottom:1px dashed var(--line);}
  .compare-table tr td:last-child{border-bottom:0;}
  .compare-table td::before{
    content:attr(data-label);display:block;
    font-size:12.5px;color:var(--ink-3);font-weight:500;margin-bottom:2px;
  }
  .compare-table td.is-reco{background:var(--brand-100);border-radius:10px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:52px 0;}
  .cat-hero{padding:var(--sp-6) 0 var(--sp-5);}
  .nav-inner{height:60px;}
  .main-nav{
    position:absolute;left:0;right:0;top:60px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 12px 28px rgba(18,60,110,.10);
    max-height:0;overflow:hidden;transition:max-height .25s ease;
  }
  .main-nav.open{max-height:360px;}
  .main-nav a{padding:14px var(--sp-4);border-bottom:1px solid var(--line);font-size:15px;}
  .main-nav a.active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .status-badge{display:none;}
  .hero-actions .btn{width:100%;}
  .ladder-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .form-foot .btn{width:100%;}
  .step-line{padding-top:var(--sp-3);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-float{left:var(--sp-3);right:var(--sp-3);bottom:var(--sp-3);}
}
@media (max-width:520px){
  .container{padding:0 var(--sp-3);}
  .logo-text{font-size:16.5px;}
  h1{font-size:26px;}
  .cat-hero .hero-lead{font-size:15.5px;}
  .compare-table th[scope="row"]{margin:6px 10px;}
  .compare-table td{padding:10px;}
  .form-card{padding:var(--sp-4);}
}

/* roulang page: category3 */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEDE6;
  --mint:#12A594;
  --mint-100:#E4F6F3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh:0 6px 18px rgba(18,60,110,.08);
  --sh-h:0 14px 36px rgba(18,60,110,.12);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;
  --sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-600);outline-offset:2px;
}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-0.01em}
h1{font-size:clamp(28px,4vw,44px);font-weight:700}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700}
h3{font-size:20px;font-weight:600;line-height:1.4}
h4{font-size:17px;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* 顶部公告条 */
.announce{
  background:var(--brand-100);
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.announce-inner{
  display:flex;align-items:center;gap:var(--sp-3);
  min-height:40px;padding:6px 0;
}
.announce-tag{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;color:var(--brand-700);
  border:1px solid #CFE1F6;border-radius:var(--r-pill);
  padding:2px 12px;font-size:12.5px;white-space:nowrap;
}
.announce-tag i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block}
.announce-text{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.announce-right{margin-left:auto;display:flex;align-items:center;gap:var(--sp-3)}
.countdown{display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.cd-box{
  width:34px;height:34px;border-radius:8px;background:#fff;border:1px solid #CFE1F6;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-weight:700;font-size:14px;
}
.cd-sep{color:var(--ink-3)}
.announce-link{color:var(--brand-600);font-weight:500;white-space:nowrap}
.announce-link:hover{color:var(--brand-700)}
.announce-close{
  border:0;background:transparent;cursor:pointer;color:var(--ink-3);
  width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;
}
.announce-close:hover{background:#fff;color:var(--ink)}
.announce-close svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(18,60,110,.07)}
.nav-inner{display:flex;align-items:center;gap:var(--sp-5);height:72px;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px;stroke:#fff;fill:none}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:0}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.main-nav a{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;
}
.main-nav a:hover{color:var(--brand-600);background:var(--brand-100)}
.main-nav a.active{color:var(--brand-600);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--brand-600);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:var(--sp-3);flex:0 0 auto}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);
  background:var(--mint-100);border-radius:var(--r-pill);padding:4px 12px;white-space:nowrap;
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink);fill:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-h);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);
  font-size:14px;font-weight:600;
}
.link-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;transition:transform .2s ease}
.link-arrow:hover{color:var(--brand-700)}
.link-arrow:hover svg{transform:translateX(3px)}

/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);padding:20px 0 0;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#B9C6D3}
.breadcrumb .current{color:var(--ink);font-weight:500}

/* 内页 Hero */
.page-hero{
  background:#fff;
  background-image:radial-gradient(rgba(23,104,196,.06) 1px, transparent 1px);
  background-size:22px 22px;
  border-bottom:1px solid var(--line);
  padding:0 0 64px;
}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:var(--sp-6);
  align-items:center;padding-top:var(--sp-6);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--r-pill);padding:5px 14px;font-size:12.5px;font-weight:600;margin-bottom:var(--sp-3);
}
.hero-copy h1{margin-bottom:var(--sp-3)}
.hero-copy .lead{color:var(--ink-2);font-size:16px;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5)}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:var(--sp-4)}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 12px;
}
.chip svg{width:14px;height:14px;stroke:var(--mint);fill:none;stroke-width:1.8}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh);border:1px solid var(--line);aspect-ratio:16/10;background:#fff;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;display:flex;align-items:center;gap:12px;box-shadow:var(--sh);
}
.hero-float .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.hero-float strong{font-size:14px;font-weight:600}
.hero-float span{font-size:12.5px;color:var(--ink-2)}

/* 通用区块 */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:var(--sp-6);max-width:760px}
.section-head .kicker{
  color:var(--brand-600);font-size:12.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;display:block;margin-bottom:10px;
}
.section-head h2{margin-bottom:var(--sp-2)}
.section-head p{color:var(--ink-2);font-size:15.5px}

/* 指标条 */
.metrics{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:-40px;position:relative;z-index:2;overflow:hidden;
}
.metric{padding:var(--sp-5) var(--sp-4);border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric .num{
  font-size:28px;font-weight:700;color:var(--brand-600);line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.metric .num em{font-style:normal;font-size:16px;margin-left:2px}
.metric .label{font-size:13.5px;color:var(--ink-2);margin-top:6px}

/* 不对称网格 */
.scene-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:var(--sp-4)}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.feature-card:hover{box-shadow:var(--sh-h);border-color:#CFE1F6;transform:translateY(-2px)}
.feature-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-100)}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover}
.feature-body{padding:var(--sp-5);display:flex;flex-direction:column;gap:var(--sp-2);flex:1}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:var(--r-pill);padding:3px 12px;font-size:12.5px;font-weight:600;
}
.tag.accent{background:var(--accent-100);color:var(--accent)}
.feature-body p{color:var(--ink-2);font-size:14.5px}
.stack{display:grid;gap:var(--sp-4)}
.mini-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:var(--sp-4);display:grid;grid-template-columns:120px 1fr;
  gap:var(--sp-4);align-items:center;transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.mini-card:hover{box-shadow:var(--sh-h);border-color:#CFE1F6;transform:translateY(-2px)}
.mini-card .thumb{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:var(--brand-100);
}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover}
.mini-card h3{font-size:17px;margin:8px 0 6px}
.mini-card p{font-size:13.5px;color:var(--ink-2)}

/* 三列卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4)}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.scene-card:hover{box-shadow:var(--sh-h);border-color:#CFE1F6;transform:translateY(-2px)}
.scene-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover}
.scene-card .body{padding:var(--sp-4);display:flex;flex-direction:column;gap:10px;flex:1}
.scene-card h3{font-size:18px}
.scene-card p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--sp-4)}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-5) var(--sp-4);box-shadow:var(--sh);position:relative;
}
.step::before{
  content:"";position:absolute;top:34px;right:-24px;width:24px;height:1px;
  background:var(--line);
}
.step:last-child::before{display:none}
.step .idx{
  width:36px;height:36px;border-radius:10px;background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;margin-bottom:var(--sp-3);
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--ink-2)}

/* 反馈摘录 */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4)}
.quote{
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand-600);
  border-radius:var(--r-card);padding:var(--sp-5);box-shadow:var(--sh);
}
.quote .mark{color:var(--brand-100);font-size:40px;line-height:1;font-weight:700}
.quote p{font-size:15px;color:var(--ink);margin:6px 0 var(--sp-3)}
.quote .who{font-size:13px;color:var(--ink-3)}

/* 相关阅读 */
.related-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-5);box-shadow:var(--sh);
}
.related-head{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);margin-bottom:var(--sp-4)}
.related-head h2{font-size:22px}
.empty-box{
  border:1px dashed #CFE1F6;background:var(--brand-100);border-radius:var(--r-img);
  padding:var(--sp-6);text-align:center;color:var(--ink-2);font-size:14.5px;
}
.empty-box svg{width:26px;height:26px;stroke:var(--brand-600);fill:none;stroke-width:1.5;margin:0 auto 10px}
.empty-box .link-arrow{margin-top:var(--sp-3)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open] summary::after{content:"–";background:var(--brand-100);transform:rotate(180deg)}
.faq-item .answer{padding:0 0 20px;color:var(--ink-2);font-size:15px;line-height:1.8}

/* CTA + 表单 */
.cta-section{
  background:#fff;border-top:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-6);align-items:start}
.cta-copy h2{margin-bottom:var(--sp-3)}
.cta-copy p{color:var(--ink-2);font-size:15.5px}
.cta-points{margin-top:var(--sp-5);display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.cta-points svg{width:18px;height:18px;stroke:var(--mint);fill:none;stroke-width:1.8;flex:0 0 auto;margin-top:4px}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:var(--sp-5);
}
.form-card h3{margin-bottom:6px}
.form-card .form-hint{font-size:13.5px;color:var(--ink-3);margin-bottom:var(--sp-4)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-3)}
.field{margin-bottom:var(--sp-3)}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--ink)}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,196,.12);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235A6B7C' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:18px;padding-right:38px;
}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2);margin:6px 0 var(--sp-4)}
.checkbox input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-600)}
.form-footer{display:flex;align-items:center;justify-content:flex-end;gap:14px}
.form-msg{font-size:13.5px;color:var(--mint);display:none}
.form-msg.show{display:inline}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:var(--sp-7) 0 var(--sp-4);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--sp-5)}
.footer-brand p{font-size:14px;color:var(--ink-2);margin-top:var(--sp-3);max-width:280px}
.footer-col h4{font-size:15px;margin-bottom:var(--sp-3)}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--brand-600)}
.footer-bottom{
  margin-top:var(--sp-6);padding-top:var(--sp-4);border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}
.fb-links{display:flex;align-items:center;gap:var(--sp-4);flex-wrap:wrap}
.fb-links a{color:var(--ink-3)}
.fb-links a:hover{color:var(--brand-600)}
.back-top{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600)}
.back-top svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6}

/* 响应式 */
@media (max-width:1024px){
  .nav-inner{height:68px;gap:var(--sp-3)}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 24px 18px;border-bottom:1px solid var(--line);
    box-shadow:var(--sh);display:none;margin:0;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 10px}
  .main-nav a.active::after{left:10px;right:auto;width:24px}
  .nav-toggle{display:flex}
  .status-badge{display:none}
  .hero-grid{grid-template-columns:1fr;gap:var(--sp-5);padding-top:var(--sp-5)}
  .scene-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step::before{display:none}
  .quotes{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5)}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .announce-text{display:none}
  .page-hero{padding-bottom:52px}
  .hero-chips{display:none}
  .grid-3{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .mini-card{grid-template-columns:1fr}
  .mini-card .thumb{aspect-ratio:16/9}
  .section{padding:52px 0}
  .section-head{margin-bottom:var(--sp-5)}
  .metrics{margin-top:-24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  body{font-size:15px}
  .container{padding:0 16px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr}
  .form-footer{flex-direction:column;align-items:stretch}
  .form-footer .btn{width:100%}
  .cd-box{width:30px;height:30px;font-size:13px}
}

/* roulang page: category4 */
:root{
  --brand-600:#1768C4;
  --brand-700:#0F5199;
  --brand-100:#E8F1FB;
  --accent:#F2683C;
  --accent-100:#FDEEE8;
  --mint:#12A594;
  --mint-100:#E4F6F3;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#16212E;
  --ink-2:#5A6B7C;
  --ink-3:#8A99A8;
  --line:#E3EBF3;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 6px 18px rgba(18,60,110,.08);
  --sh-2:0 14px 36px rgba(18,60,110,.12);
  --container:1200px;
  --gutter:24px;
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:64px;
  --sp-8:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans CN",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--sp-8) 0}
.section--tight{padding:var(--sp-6) 0}
.section--alt{background:#fff}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;height:72px;gap:var(--sp-4)}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);border:1px solid #D3E4F7;
}
.logo-mark svg{width:20px;height:20px}
.logo-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:var(--sp-5);flex:1}
.main-nav a{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;
  color:var(--ink-2);border-radius:var(--r-btn);transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:var(--brand-600);background:var(--brand-100)}
.main-nav a.active{color:var(--brand-600)}
.main-nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand-600);
}
.nav-actions{display:flex;align-items:center;gap:var(--sp-2);margin-left:auto}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1;
  color:var(--ink-2);background:var(--mint-100);padding:7px 11px;border-radius:var(--r-pill);
}
.status-badge i{width:6px;height:6px;border-radius:50%;background:var(--mint);display:block}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;color:var(--ink)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(23,104,196,.22)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 12px 26px rgba(23,104,196,.26)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:#B9D5F1}
.btn-ghost:hover{border-color:var(--brand-600);background:var(--brand-100);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-600);padding:0;
}
.btn-link svg{width:16px;height:16px;transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-600);
  font-weight:600;
}
.badge.accent{background:var(--accent-100);color:var(--accent)}
.badge.mint{background:var(--mint-100);color:var(--mint)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);
  letter-spacing:.06em;margin-bottom:var(--sp-2);
}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--ink-3);margin-bottom:var(--sp-5)}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb span{color:var(--ink-3)}
.breadcrumb em{font-style:normal;color:var(--ink)}

/* ============ Hero ============ */
.page-hero{
  padding:var(--sp-7) 0 var(--sp-8);
  background:
    radial-gradient(circle at 1px 1px, rgba(23,104,196,.10) 1px, transparent 0) 0 0/22px 22px,
    linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-7);align-items:center}
.hero-copy h1{font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25}
.hero-sub{margin-top:var(--sp-3);font-size:17px;color:var(--ink-2);max-width:34em}
.search-bar{
  display:flex;align-items:center;gap:var(--sp-2);margin-top:var(--sp-5);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:8px 8px 8px 16px;box-shadow:var(--sh-1);max-width:560px;
}
.search-bar svg{width:20px;height:20px;color:var(--ink-3);flex:0 0 20px}
.search-bar input{
  flex:1;min-width:0;border:0;outline:none;height:44px;font-size:15px;background:transparent;
  color:var(--ink);
}
.search-bar input::placeholder{color:var(--ink-3)}
.hero-tags{display:flex;flex-wrap:wrap;gap:var(--sp-2);margin-top:var(--sp-4)}
.hero-art{
  aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-100);box-shadow:var(--sh-2);
}
.hero-art img{width:100%;height:100%;object-fit:cover}

/* ============ 板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-5)}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700}
.section-head p{margin-top:var(--sp-1);color:var(--ink-2);font-size:15px;max-width:52em}

/* ============ 主题入口 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4)}
.topic-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-4);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:var(--ink);
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#BFD9F4}
.topic-card:hover h3{color:var(--brand-600)}
.topic-icon{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);margin-bottom:var(--sp-3);
}
.topic-icon svg{width:20px;height:20px}
.topic-card h3{font-size:17px;font-weight:600;transition:color .2s ease}
.topic-card p{margin-top:var(--sp-2);font-size:14px;color:var(--ink-2);min-height:3.4em}
.topic-card .btn-link{margin-top:var(--sp-3)}

/* ============ 信息条 ============ */
.fact-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-5);box-shadow:var(--sh-1);
}
.fact{padding-left:var(--sp-3);border-left:3px solid var(--brand-100)}
.fact strong{display:block;font-size:19px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.fact span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-2)}

/* ============ FAQ 主区 ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:var(--sp-6);align-items:start}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:var(--sp-3);
  background:transparent;border:0;padding:20px var(--sp-4);cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--brand-600);background:#FAFCFF}
.faq-item.open .faq-q{color:var(--brand-600)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;margin-top:6px;color:currentColor}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:1.6px}
.faq-icon::after{width:1.6px;height:14px;transition:transform .22s ease}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 var(--sp-4) 20px;font-size:15px;color:var(--ink-2);line-height:1.85}

.aside-stack{display:flex;flex-direction:column;gap:var(--sp-4);position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-4);box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;font-weight:600;margin-bottom:var(--sp-3)}
.link-list li+li{border-top:1px solid var(--line)}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-2);
  padding:12px 0;font-size:14.5px;color:var(--ink-2);transition:color .2s ease;
}
.link-list a:hover{color:var(--brand-600)}
.link-list a svg{width:16px;height:16px;flex:0 0 16px;color:var(--ink-3);transition:transform .2s ease,color .2s ease}
.link-list a:hover svg{transform:translateX(3px);color:var(--brand-600)}
.side-card--cta{background:linear-gradient(180deg,#FFFFFF 0%,var(--brand-100) 100%);border-color:#CFE2F7}
.side-card--cta p{font-size:14px;color:var(--ink-2);margin-bottom:var(--sp-3)}
.side-note{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-top:var(--sp-3)}
.side-note i{width:6px;height:6px;border-radius:50%;background:var(--mint);flex:0 0 6px}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--sp-3);counter-reset:step}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-4);box-shadow:var(--sh-1);border-top:3px solid var(--brand-100);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-top-color:var(--brand-600)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;
  border-radius:var(--r-pill);background:var(--accent-100);color:var(--accent);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:var(--sp-2);
}
.step h3{font-size:16px;font-weight:600}
.step p{margin-top:var(--sp-2);font-size:13.5px;color:var(--ink-2)}

/* ============ 图片图文条 ============ */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-6);align-items:center}
.media-row .ratio{aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--brand-100)}
.media-row .ratio img{width:100%;height:100%;object-fit:cover}
.media-row h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.media-row p{margin-top:var(--sp-3);color:var(--ink-2);font-size:15.5px}
.check-list{margin-top:var(--sp-4);display:grid;gap:var(--sp-2)}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2)}
.check-list li svg{width:18px;height:18px;flex:0 0 18px;color:var(--mint);margin-top:5px}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-card);overflow:hidden;color:#fff;
  background:linear-gradient(rgba(15,81,153,.93),rgba(15,81,153,.93)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:var(--sp-7) var(--sp-6);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-6);flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.cta-band p{margin-top:var(--sp-2);font-size:15px;color:rgba(255,255,255,.86);max-width:46em}
.cta-actions{display:flex;gap:var(--sp-2);flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:var(--sp-8) 0 var(--sp-4);margin-top:var(--sp-8)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-6)}
.footer-brand p{margin-top:var(--sp-3);font-size:14px;color:var(--ink-2);max-width:22em}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:var(--sp-3)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand-600)}
.footer-col span{font-size:14px;color:var(--ink-2)}
.footer-bottom{
  margin-top:var(--sp-6);padding-top:var(--sp-4);border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3);flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);
}
.fb-links{display:flex;align-items:center;gap:var(--sp-4);flex-wrap:wrap}
.fb-links a{display:inline-flex;align-items:center;gap:6px;color:var(--ink-2);font-size:13.5px}
.fb-links a:hover{color:var(--brand-600)}
.fb-links svg{width:15px;height:15px}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--gutter:24px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:var(--sp-6)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .fact-bar{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr}
  .aside-stack{position:static}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-5)}
}
@media (max-width:768px){
  .section{padding:52px 0}
  :root{--gutter:16px}
  .nav-inner{height:60px;gap:var(--sp-2)}
  .nav-toggle{display:inline-flex}
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;margin-left:0;
    background:#fff;padding:12px 16px 16px;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-1);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px;font-size:15px}
  .main-nav a.active::after{display:none}
  .status-badge{display:none}
  .page-hero{padding:var(--sp-6) 0 52px}
  .hero-sub{font-size:15.5px}
  .search-bar{max-width:100%;flex-wrap:wrap;padding:10px 10px 10px 14px}
  .search-bar input{width:100%;flex:1 1 60%}
  .search-bar .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start}
  .topic-grid{grid-template-columns:1fr}
  .fact-bar{grid-template-columns:1fr;padding:var(--sp-4)}
  .steps{grid-template-columns:1fr}
  .media-row{grid-template-columns:1fr;gap:var(--sp-5)}
  .cta-band{padding:var(--sp-6) var(--sp-4);flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-5)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  body{font-size:15px}
  .hero-copy h1{font-size:28px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
}