/* roulang page: index */
:root{
  --brand:#1769C9;
  --brand-dark:#0F4E9B;
  --brand-light:#E8F1FC;
  --accent:#F97316;
  --accent-dark:#E2620A;
  --accent-light:#FFF1E6;
  --mint:#12A594;
  --mint-light:#E6F6F4;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#101B2B;
  --ink-2:#55657A;
  --ink-3:#97A4B4;
  --dark:#0B2238;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 2px 4px rgba(16,27,43,.04),0 12px 28px rgba(16,27,43,.06);
  --shadow-hover:0 4px 8px rgba(16,27,43,.06),0 18px 40px rgba(16,27,43,.10);
  --nav-w:232px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-style:none}
a{color:var(--brand);text-decoration:none;background-color:transparent}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--ink);margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;line-height:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
table{border-collapse:collapse;width:100%}
::selection{background:var(--brand-light);color:var(--brand-dark)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,105,201,.25)}

/* ---------- 侧边导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:20px;
  padding:22px 16px 18px;z-index:60;overflow-y:auto;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:2px 4px 16px;border-bottom:1px solid var(--line)}
.side-brand .mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.side-brand .txt{display:flex;flex-direction:column;line-height:1.3}
.side-brand .txt strong{font-size:15px;font-weight:700;color:var(--ink)}
.side-brand .txt span{font-size:12px;color:var(--ink-3)}
.nav-group-title{
  font-size:13px;font-weight:600;color:var(--ink-3);
  letter-spacing:.02em;padding:0 10px 8px;
}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:flex;align-items:center;gap:10px;min-height:44px;
  padding:0 12px;border-radius:10px;font-size:15px;font-weight:500;
  color:var(--ink-2);position:relative;transition:background .18s,color .18s;
}
.nav-item i{font-size:15px;width:18px;text-align:center;color:var(--ink-3);transition:color .18s}
.nav-item:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-item:hover i{color:var(--brand)}
.nav-item.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.nav-item.is-active i{color:var(--brand)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.side-tips{
  background:#F8FAFD;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 14px;font-size:13px;color:var(--ink-2);line-height:1.7;
}
.side-tips strong{display:block;font-size:13px;color:var(--ink);margin-bottom:6px}
.side-tips li{position:relative;padding-left:14px;margin-top:2px}
.side-tips li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--mint)}
.side-promo{
  margin-top:auto;background:var(--accent-light);border-radius:var(--r-md);
  padding:16px 14px;border:1px solid #FFE2CC;
}
.side-promo .tag{
  display:inline-block;font-size:12px;font-weight:600;color:var(--accent-dark);
  background:#fff;border-radius:999px;padding:2px 9px;margin-bottom:8px;
}
.side-promo p{font-size:13px;color:#8A4A17;line-height:1.6;margin-bottom:10px}
.side-promo a{
  display:flex;align-items:center;justify-content:center;gap:6px;
  height:38px;border-radius:9px;background:var(--accent);color:#fff;
  font-size:14px;font-weight:600;transition:background .18s,transform .18s;
}
.side-promo a:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}

/* ---------- 顶栏（移动端） ---------- */
.topbar{display:none}
.drawer,.drawer-backdrop{display:none}

/* ---------- 主体壳层 ---------- */
.shell{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{margin-left:12px;margin-right:12px}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;transition:background .18s,color .18s,transform .18s,box-shadow .18s,border-color .18s;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);border-radius:var(--r-sm)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:rgba(23,105,201,.28)}
.btn:active{transform:translateY(0)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);white-space:nowrap;
}
.link-more i{transition:transform .18s}
.link-more:hover i{transform:translateX(2px)}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:13px;font-weight:600;border-radius:999px;padding:3px 11px;line-height:1.6;
}
.badge-cat{background:var(--brand-light);color:var(--brand-dark)}
.badge-mint{background:var(--mint-light);color:#0B7A6C}
.badge-soft{background:#F1F5FA;color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border-radius:999px;padding:5px 14px;
}
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:32px}
.section-head .sub{margin-top:10px;font-size:16px;color:var(--ink-2);max-width:640px}
.section-head p.sub{line-height:1.7}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:#fff;border-bottom:1px solid var(--line);
  padding:72px 0 88px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(23,105,201,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(23,105,201,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(80% 70% at 30% 30%,#000 0%,transparent 100%);
  mask-image:radial-gradient(80% 70% at 30% 30%,#000 0%,transparent 100%);
}
.hero-inner{position:relative;z-index:1}
.hero h1{font-size:44px;letter-spacing:0;margin:18px 0 16px}
.hero .lead{font-size:18px;color:var(--ink-2);max-width:560px;line-height:1.8}
.hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:28px}
.stat-row{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;padding-top:28px;border-top:1px dashed var(--line)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat b{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--ink)}
.stat span{font-size:13px;color:var(--ink-2)}
.stat i{font-size:13px;color:var(--brand);margin-right:6px}
.hero-visual{position:relative;margin-top:8px}
.hero-visual .shot{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  border:1px solid var(--line);background:#fff;
}
.hero-visual .shot img{width:100%;height:340px;object-fit:cover}
.hero-float{
  position:absolute;left:-22px;bottom:26px;width:236px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);padding:14px;
  box-shadow:var(--shadow);
}
.hero-float .inner{display:flex;align-items:center;gap:10px}
.hero-float img{width:44px;height:44px;border-radius:9px;object-fit:cover;flex:0 0 44px}
.hero-float strong{display:block;font-size:14px;color:var(--ink)}
.hero-float small{font-size:12px;color:var(--ink-3)}
.hero-float .pill{margin-top:10px}

/* ---------- 登录流程 ---------- */
.step-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 24px;transition:transform .2s,box-shadow .2s,border-color .2s;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(23,105,201,.28)}
.step-card .no{
  font-size:28px;font-weight:700;color:rgba(23,105,201,.22);
  font-variant-numeric:tabular-nums;line-height:1;
}
.step-card h3{font-size:19px;margin:10px 0 8px}
.step-card p{font-size:15px;color:var(--ink-2);line-height:1.75}
.status-panel{
  margin-top:20px;background:var(--dark);border-radius:var(--r-lg);
  padding:24px 26px;color:#C7D6E6;display:flex;flex-wrap:wrap;gap:24px;align-items:center;
}
.status-panel .title{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:#fff;white-space:nowrap}
.status-panel .title .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(18,165,148,.22)}
.status-list{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14px;min-width:0}
.status-list li{display:flex;align-items:center;gap:8px}
.status-list i{color:var(--mint);font-size:13px}

/* ---------- 福利阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:end;position:relative}
.ladder-item{
  background:#fff;border:1px solid var(--line);border-top:4px solid #BFD8F3;
  border-radius:var(--r-lg);padding:24px 20px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s,box-shadow .2s;
}
.ladder-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.ladder-item:nth-child(1){min-height:262px}
.ladder-item:nth-child(2){min-height:294px;border-top-color:#7FB2E8;background:#FCFDFF}
.ladder-item:nth-child(3){min-height:326px;border-top-color:#3A8AD9;background:#FAFCFF}
.ladder-item:nth-child(4){min-height:358px;border-top-color:var(--brand);background:#F4F9FF}
.ladder-item .no{font-size:28px;font-weight:700;color:rgba(23,105,201,.24);font-variant-numeric:tabular-nums;line-height:1}
.ladder-item h3{font-size:18px}
.ladder-item .cond{font-size:14px;color:var(--ink-2);line-height:1.7}
.ladder-item ul{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.ladder-item li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.7}
.ladder-item li::before{
  content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;
  border-radius:2px;background:var(--mint);
}
.ladder-item .badge{align-self:flex-start;margin-top:auto}

/* ---------- 套餐对比 ---------- */
.compare{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
}
.compare-head,.compare-row{display:grid;grid-template-columns:200px repeat(3,1fr)}
.compare-head{position:sticky;top:0;z-index:3;background:#fff;border-bottom:1px solid var(--line)}
.compare-row{border-top:1px dashed var(--line)}
.compare-row:first-of-type{border-top:0}
.compare-cell{padding:16px 20px;display:flex;align-items:center;font-size:15px}
.compare-dim{color:var(--ink-2);font-size:14px;font-weight:600;background:#FBFCFE}
.compare-plan{
  flex-direction:column;align-items:flex-start;gap:8px;padding:24px 20px;
  border-left:1px solid var(--line);position:relative;
}
.compare-plan.is-pro{background:var(--brand-light);box-shadow:inset 0 4px 0 var(--brand)}
.compare-plan .plan-name{font-size:17px;font-weight:700;color:var(--ink)}
.compare-plan .plan-price{font-size:24px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.compare-plan .plan-price small{font-size:13px;font-weight:500;color:var(--ink-2);margin-left:4px}
.compare-plan .plan-note{font-size:13px;color:var(--ink-2)}
.corner-tag{
  position:absolute;top:0;right:0;background:var(--accent);color:#fff;
  font-size:12px;font-weight:600;padding:3px 12px;border-bottom-left-radius:10px;
}
.compare-cell .val{font-variant-numeric:tabular-nums}
.compare-cell .check{color:var(--mint);font-weight:700}
.compare-cell .mute{color:var(--ink-3)}
.compare-row:nth-child(even) .compare-plan{background:#FCFDFF}
.compare-row:nth-child(even) .compare-plan.is-pro{background:#E8F1FC}
.compare-mobile{display:none}

/* ---------- 资讯列表 ---------- */
.news-grid{margin-bottom:-24px}
.news-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s,box-shadow .2s,border-color .2s;margin-bottom:24px;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(23,105,201,.28)}
.news-thumb{height:180px;overflow:hidden;background:#EAF0F8}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--brand)}
.news-sum{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
  display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state .pic{
  width:96px;height:96px;border-radius:20px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:34px;
}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ---------- 限时入口 ---------- */
.countdown-bar{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;
}
.countdown{display:flex;align-items:center;gap:8px}
.cd-block{display:flex;flex-direction:column;align-items:center;gap:4px}
.cd-block b{
  display:block;min-width:64px;text-align:center;padding:6px 8px;
  background:var(--accent-light);border-radius:8px;color:var(--accent-dark);
  font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.25;
}
.cd-block span{font-size:12px;color:var(--ink-3)}
.cd-sep{font-size:22px;font-weight:700;color:var(--accent);padding-bottom:18px}
.countdown-text{flex:1;min-width:220px}
.countdown-text strong{display:block;font-size:17px;margin-bottom:4px}
.countdown-text span{font-size:14px;color:var(--ink-2)}
.countdown-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}

/* ---------- 咨询表单 ---------- */
.consult-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;min-height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;color:var(--ink);background:#fff;
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:120px;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);box-shadow:0 0 0 3px rgba(23,105,201,.25);
}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath fill='%2355657A' d='M7 9 0 .8h14z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.6}
.check-row input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand);flex:0 0 16px}
.form-msg{display:none;margin-top:14px;font-size:14px;border-radius:var(--r-sm);padding:12px 14px}
.form-msg.ok{display:block;background:var(--mint-light);color:#0B7A6C;border:1px solid #BFE7E2}
.form-msg.err{display:block;background:#FDECEE;color:#B4232A;border:1px solid #F7C9CD}
.info-block{display:flex;flex-direction:column;gap:16px}
.info-row{
  display:flex;gap:14px;align-items:flex-start;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;
}
.info-row .ico{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;background:var(--brand-light);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;
}
.info-row h3{font-size:16px;margin-bottom:4px}
.info-row p{font-size:14px;color:var(--ink-2);line-height:1.7}
.info-dark{
  background:var(--dark);border-radius:var(--r-lg);padding:24px;color:#C7D6E6;
}
.info-dark h3{color:#fff;font-size:16px;margin-bottom:10px}
.info-dark ul{display:flex;flex-direction:column;gap:8px;font-size:14px}
.info-dark li{display:flex;gap:10px;align-items:flex-start}
.info-dark i{color:var(--mint);margin-top:5px;font-size:12px}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:16px 24px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:background .18s,color .18s;
}
.faq-q:hover{background:#FAFCFE;color:var(--brand-dark)}
.faq-q .ico{
  flex:0 0 22px;width:22px;height:22px;display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:15px;transition:transform .3s;
}
.faq-item.is-open .faq-q{color:var(--brand-dark)}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-item.is-open .faq-a{max-height:520px}
.faq-a .inner{padding:0 24px 20px;font-size:15px;color:var(--ink-2);line-height:1.8}
.faq-a .inner p+p{margin-top:10px}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:linear-gradient(120deg,#0F4E9B 0%,#1769C9 100%);
  border-radius:var(--r-lg);padding:36px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-strip h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-strip p{color:rgba(255,255,255,.86);font-size:15px;max-width:620px}
.cta-strip .btn-accent:hover{background:#fff;color:var(--brand-dark)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D6E6;margin-top:auto}
.footer-main{padding:64px 0 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-line{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.footer-brand strong{color:#fff;font-size:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB4C9;max-width:320px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:#9FB4C9}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E93A8;
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .hero h1{font-size:38px}
  .section-head h2{font-size:28px}
}
@media screen and (max-width:1024px){
  .side-nav{display:none}
  .shell{margin-left:0;padding-top:56px}
  .topbar{
    display:flex;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
    background:#fff;border-bottom:1px solid var(--line);padding:0 16px;
  }
  .topbar .brand-mini{
    display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);
    min-width:0;flex:1;
  }
  .topbar .brand-mini .mark{
    width:30px;height:30px;border-radius:9px;flex:0 0 30px;
    background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
  }
  .topbar .brand-mini span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .topbar .page-name{font-size:13px;color:var(--ink-3);white-space:nowrap}
  .nav-toggle{
    width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;
    color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:16px;
  }
  .nav-toggle:hover{background:var(--brand-light);color:var(--brand-dark)}
  .drawer{
    display:block;position:fixed;top:0;left:0;bottom:0;width:286px;max-width:86vw;
    background:#fff;z-index:90;padding:20px 16px;overflow-y:auto;
    transform:translateX(-100%);transition:transform .28s ease;
    display:flex;flex-direction:column;gap:20px;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-backdrop{
    display:block;position:fixed;inset:0;background:rgba(16,27,43,.45);
    z-index:80;opacity:0;visibility:hidden;transition:opacity .28s,visibility .28s;
  }
  .drawer-backdrop.is-open{opacity:1;visibility:visible}
  .hero{padding:48px 0 56px}
  .hero h1{font-size:34px}
  .hero-visual{margin-top:32px}
  .hero-visual .shot img{height:300px}
  .hero-float{left:16px;bottom:16px}
  .step-flow{grid-template-columns:1fr 1fr}
  .ladder{grid-template-columns:1fr 1fr;align-items:stretch}
  .ladder-item{min-height:0 !important}
  .compare-head,.compare-row{grid-template-columns:170px repeat(3,1fr)}
  .consult-wrap{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .hero{padding:36px 0 44px}
  .hero h1{font-size:28px;margin:14px 0 12px}
  .hero .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch;gap:10px}
  .link-more{align-self:flex-start}
  .stat-row{gap:22px;margin-top:28px;padding-top:22px}
  .step-flow{grid-template-columns:1fr}
  .status-panel{flex-direction:column;align-items:flex-start;gap:14px}
  .status-list{flex-direction:column;gap:10px}
  .ladder{grid-template-columns:1fr;gap:0;position:relative;padding-left:26px}
  .ladder::before{
    content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--line);
  }
  .ladder-item{
    border-radius:var(--r-md);margin-bottom:14px;position:relative;border-top-width:1px;
    border-left:4px solid var(--brand);min-height:0 !important;
  }
  .ladder-item:nth-child(1){border-left-color:#BFD8F3}
  .ladder-item:nth-child(2){border-left-color:#7FB2E8}
  .ladder-item:nth-child(3){border-left-color:#3A8AD9}
  .ladder-item:nth-child(4){border-left-color:var(--brand)}
  .ladder-item::before{
    content:"";position:absolute;left:-34px;top:26px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:3px solid var(--brand);
  }
  .compare{display:none}
  .compare-mobile{display:block}
  .plan-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:20px;margin-bottom:16px;box-shadow:0 1px 2px rgba(16,27,43,.04);
  }
  .plan-card.is-pro{border:2px solid var(--brand);background:#F7FAFE}
  .plan-card .head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
  .plan-card .head .plan-name{font-size:17px;font-weight:700}
  .plan-card .head .plan-price{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--accent-dark)}
  .plan-card details{border-top:1px dashed var(--line);padding-top:12px;margin-top:12px}
  .plan-card summary{font-size:14px;font-weight:600;color:var(--brand);cursor:pointer}
  .plan-card ul{display:flex;flex-direction:column;gap:8px;margin-top:12px;font-size:14px;color:var(--ink-2)}
  .plan-card ul li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:8px}
  .news-thumb{height:200px}
  .countdown-bar{flex-direction:column;align-items:flex-start;gap:20px;padding:22px 20px}
  .countdown{width:100%;justify-content:space-between}
  .cd-block b{min-width:0;width:100%;font-size:22px}
  .cd-block{flex:1}
  .cd-sep{padding-bottom:16px}
  .countdown-actions{width:100%}
  .countdown-actions .btn{width:100%}
  .form-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .cta-strip{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .cta-strip .btn{width:100%}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a .inner{padding:0 18px 18px}
}
@media screen and (max-width:520px){
  .hero h1{font-size:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:24px}
  .hero-visual .shot img{height:220px}
  .hero-float{position:static;width:100%;margin-top:12px}
  .cd-block b{font-size:20px}
}

/* roulang page: article */
:root{
  --brand:#1769C9;
  --brand-deep:#0F4E9B;
  --brand-soft:#E8F1FC;
  --accent:#F97316;
  --accent-deep:#E2620A;
  --accent-soft:#FFF1E6;
  --mint:#12A594;
  --mint-soft:#E4F6F3;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#101B2B;
  --ink-2:#55657A;
  --ink-3:#97A4B4;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --sh-1:0 2px 4px rgba(16,27,43,.04), 0 12px 28px rgba(16,27,43,.06);
  --sh-2:0 4px 8px rgba(16,27,43,.06), 0 18px 40px rgba(16,27,43,.10);
  --sidebar:232px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Inter,Helvetica,system-ui,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding-left:1.15em;}
img{display:block;max-width:100%;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(23,105,201,.25);outline-offset:2px;}
.tabular{font-variant-numeric:tabular-nums;}

/* ---------- 壳层 ---------- */
.app-main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column;}
main{flex:1;padding:32px 0 72px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:22px;
  padding:22px 16px;overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand .mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;
  box-shadow:0 6px 14px rgba(23,105,201,.28);
}
.brand-text{font-size:15px;font-weight:700;line-height:1.35;}
.nav-group{display:flex;flex-direction:column;gap:8px;}
.nav-group-title{font-size:13px;color:var(--ink-3);letter-spacing:.02em;padding-left:12px;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;border-left:3px solid transparent;
  color:var(--ink-2);font-size:15px;line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-item i{width:18px;font-size:15px;text-align:center;color:inherit;}
.nav-item:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand);font-weight:600;}
.side-promo{
  margin-top:auto;background:var(--accent-soft);border:1px solid #FFE0C7;
  border-radius:14px;padding:16px;
}
.side-promo .promo-title{font-size:15px;font-weight:700;color:#8A3D06;}
.side-promo .promo-text{font-size:13px;color:#9A5A24;line-height:1.65;margin:6px 0 12px;}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{display:none;}
.hamburger{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;color:var(--ink);display:grid;place-items:center;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,27,43,.45);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:55;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(23,105,201,.22);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(249,115,22,.24);}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(23,105,201,.28);color:var(--brand-deep);}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:15px;font-weight:600;min-height:44px;
}
.btn-link i{transition:transform .18s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-2);margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--ink-3);}
.breadcrumb .current{color:var(--ink);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:600;
}
.article-title{
  font-size:44px;font-weight:700;line-height:1.35;margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  word-break:break-word;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:16px;
  padding-top:16px;border-top:1px dashed var(--line);
  color:var(--ink-2);font-size:14px;
}
.meta-row i{color:var(--ink-3);margin-right:6px;}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start;margin-top:24px;}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.panel-pad{padding:28px;}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:#1B2739;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;font-size:22px;font-weight:700;line-height:1.4;
  margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.2em;width:4px;
  border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.45;margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:#243348;}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em;}
.article-body li{margin:.35em 0;}
.article-body img{border-radius:12px;margin:22px 0;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:22px 0;padding:14px 18px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:#243348;
}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(23,105,201,.4);}
.article-body a:hover{border-bottom-width:2px;color:var(--brand-deep);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#EEF2F7;padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body pre{
  background:#F1F5F9;border:1px solid var(--line);border-radius:12px;
  padding:16px;overflow:auto;margin:0 0 1.1em;
}
.article-body pre code{background:none;padding:0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.2em;}
.article-body th,.article-body td{padding:10px 12px;border:1px solid var(--line);text-align:left;}
.article-body th{background:#F7FAFE;font-weight:600;color:#243348;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{text-align:center;padding:56px 24px;max-width:760px;}
.empty-art{
  width:96px;height:96px;margin:0 auto 18px;border-radius:24px;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:36px;
}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px;}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:20px;border-top:1px solid var(--line);}
.tag-row .label{font-size:13px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:#F1F5F9;color:var(--ink-2);font-size:13px;transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-deep);}

/* ---------- 双卡续读 ---------- */
.next-prev{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:24px;}
.np-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.np-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(23,105,201,.28);}
.np-card .np-label{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:6px;}
.np-card .np-title{font-size:16px;font-weight:600;color:var(--ink);margin-top:8px;line-height:1.5;}
.np-card:hover .np-title{color:var(--brand-deep);}

/* ---------- 相关推荐 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:44px 0 18px;}
.section-head h2{font-size:22px;font-weight:700;}
.section-head p{font-size:14px;color:var(--ink-2);margin-top:4px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(23,105,201,.28);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{
  font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover .rel-body h3{color:var(--brand-deep);}
.rel-body .summary{
  font-size:14px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-3);margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:44px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:48px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--brand);
  transition:transform .22s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--brand-deep);}
.faq-answer{padding:0 22px 18px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- 侧栏 ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:24px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.side-card h3{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);}
.check-list{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-direction:column;gap:12px;}
.check-list li{position:relative;padding-left:22px;font-size:14px;line-height:1.7;color:var(--ink-2);}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;
  border-radius:3px;background:var(--mint);
}
.side-links{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-direction:column;}
.side-links li + li{border-top:1px solid var(--line);}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;font-size:14px;color:var(--ink-2);}
.side-links a:hover{color:var(--brand-deep);}
.side-links a i{color:var(--ink-3);font-size:12px;transition:transform .18s ease;}
.side-links a:hover i{transform:translateX(3px);color:var(--brand);}
.side-dark{background:#0B2238;border-color:#0B2238;color:#C7D6E6;}
.side-dark h3{color:#fff;}
.side-dark p{font-size:13px;line-height:1.7;color:#9FB4CC;margin-top:10px;}
.side-dark .num{font-size:26px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;}
.side-dark .num small{font-size:13px;font-weight:400;color:#9FB4CC;margin-left:6px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B2238;color:#C7D6E6;margin-top:72px;padding:56px 0 28px;}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.brand-line{display:flex;align-items:center;gap:10px;color:#fff;}
.brand-line .mark{
  width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#3E8CE0);
  display:grid;place-items:center;font-weight:700;font-size:16px;color:#fff;
}
.brand-line strong{font-size:16px;font-weight:700;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB4CC;margin-top:14px;max-width:34em;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col li,.footer-col a{font-size:14px;color:#C7D6E6;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(199,214,230,.18);margin-top:40px;padding-top:20px;
  font-size:13px;color:#8FA6BF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;}
}
@media (max-width:1024px){
  .side-nav{
    width:272px;transform:translateX(-100%);
    transition:transform .28s ease;box-shadow:0 18px 40px rgba(16,27,43,.18);
  }
  .side-nav.is-open{transform:translateX(0);}
  .app-main{margin-left:0;}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;
    background:#fff;border-bottom:1px solid var(--line);padding:0 16px;z-index:50;
  }
  .mobile-bar .brand-text{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  main{padding-top:84px;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-stack{position:static;}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .article-head{padding:20px;}
  .article-title{font-size:28px;-webkit-line-clamp:4;}
  .panel-pad{padding:20px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .next-prev{grid-template-columns:minmax(0,1fr);}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;margin-top:36px;}
  .footer-main{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .site-footer{padding:40px 0 24px;margin-top:56px;}
}
@media (max-width:520px){
  main{padding-top:76px;}
  .article-title{font-size:26px;}
  .meta-row{gap:6px 16px;font-size:13px;}
  .btn{width:100%;}
  .btn-link{width:auto;justify-content:flex-start;}
  .breadcrumb .current{max-width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#1769C9;
  --brand-dark:#0F4E9B;
  --brand-light:#E8F1FC;
  --accent:#F97316;
  --accent-dark:#E2620A;
  --accent-light:#FFF1E6;
  --mint:#12A594;
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#101B2B;
  --muted:#55657A;
  --faint:#97A4B4;
  --dark:#0B2238;
  --dark-2:#123255;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 2px 4px rgba(16,27,43,.04),0 12px 28px rgba(16,27,43,.06);
  --shadow-2:0 4px 8px rgba(16,27,43,.06),0 18px 40px rgba(16,27,43,.10);
  --sidebar-w:232px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:0;color:var(--text);}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:3px solid rgba(23,105,201,.25);outline-offset:2px;}

/* ============ 布局骨架 ============ */
.layout{display:flex;min-height:100vh;width:100%;}
.content{margin-left:var(--sidebar-w);flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ============ 左侧固定导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  padding:22px 16px 20px;display:flex;flex-direction:column;
  overflow-y:auto;z-index:60;
}
.brand-block{display:flex;align-items:center;gap:10px;padding:2px 6px 18px;border-bottom:1px solid var(--line);}
.mark{
  width:38px;height:38px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,#1769C9,#0F4E9B);
  color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;
}
.brand-text strong{display:block;font-size:14px;line-height:1.35;font-weight:700;color:var(--text);}
.brand-text span{display:block;font-size:12px;color:var(--faint);line-height:1.5;}
.nav-group{margin-top:18px;}
.nav-group-title{font-size:13px;color:var(--faint);padding:0 10px;margin-bottom:8px;line-height:1.6;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;color:var(--muted);font-size:15px;position:relative;
  transition:background-color .18s ease,color .18s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--faint);transition:color .18s ease;}
.nav-item:hover{background:var(--bg);color:var(--brand);}
.nav-item:hover i{color:var(--brand);}
.nav-item.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-item.is-active i{color:var(--brand);}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--brand);
}
.sidebar-promo{
  margin-top:auto;background:var(--accent-light);border:1px solid #FFE0C7;
  border-radius:14px;padding:16px;display:block;
}
.sidebar-promo strong{display:block;font-size:14px;color:#8A3B04;margin-bottom:6px;font-weight:700;}
.sidebar-promo p{font-size:13px;color:#A2500F;line-height:1.65;margin-bottom:10px;}
.sidebar-promo .promo-link{font-size:13px;font-weight:600;color:var(--accent-dark);}
.sidebar-promo .promo-link:hover{color:#B84C04;}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);align-items:center;gap:12px;
  padding:0 16px;z-index:70;
}
.topbar .mark{width:32px;height:32px;border-radius:10px;font-size:15px;}
.topbar-title{font-size:15px;font-weight:700;flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);display:grid;place-items:center;font-size:17px;
}
.nav-toggle:hover{background:var(--brand-light);border-color:rgba(23,105,201,.28);}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(16,27,43,.45);z-index:55;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}

/* ============ 页头 ============ */
.page-head{
  position:relative;background:#fff;border-bottom:1px solid var(--line);
  padding:44px 0 40px;overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.15;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(23,105,201,.055) 0 2px,transparent 2px 11px);
}
.page-head .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--faint);}
.breadcrumb .current{color:var(--text);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:999px;background:var(--brand-light);color:var(--brand);
  font-size:14px;font-weight:600;margin-bottom:18px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);}
.page-head h1{font-size:44px;max-width:900px;margin-bottom:16px;}
.page-head .lead{font-size:17px;color:var(--muted);max-width:820px;line-height:1.9;}
.head-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;}
.head-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px;padding-top:24px;border-top:1px dashed var(--line);}
.stat{display:flex;align-items:center;gap:10px;}
.stat i{color:var(--brand);font-size:18px;width:20px;text-align:center;}
.stat b{
  font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";margin-right:6px;
}
.stat span{font-size:14px;color:var(--muted);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;border-radius:999px;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-light);border-color:rgba(23,105,201,.28);color:var(--brand);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);}
.link-arrow i{font-size:13px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(2px);}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section--first{padding-top:64px;}
.section--light{background:#fff;}
.section-head{margin-bottom:36px;max-width:820px;}
.section-head h2{font-size:32px;margin-bottom:10px;}
.section-head .sub{font-size:16px;color:var(--muted);line-height:1.8;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* Foundation 栅格间距覆盖 */
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}

/* ============ 图文分栏 ============ */
.split-figure{
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);
  border:1px solid var(--line);background:#fff;
}
.split-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;}
.split-caption{
  padding:14px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);background:#FBFDFF;
}
.feature-list{display:flex;flex-direction:column;gap:18px;}
.feature-row{
  display:flex;gap:16px;padding:20px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.feature-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(23,105,201,.28);}
.feature-ico{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;background:var(--brand-light);
  color:var(--brand);display:grid;place-items:center;font-size:17px;
}
.feature-row h3{font-size:19px;margin-bottom:6px;}
.feature-row p{font-size:15px;color:var(--muted);line-height:1.8;}
.feature-meta{display:flex;align-items:center;gap:8px;margin-top:10px;font-size:13px;color:var(--faint);}
.feature-meta .tag-mini{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:#F1F6FD;color:var(--brand);font-size:12px;font-weight:600;
}

/* ============ 深色流程面板 ============ */
.flow-panel{
  background:var(--dark);border-radius:20px;padding:40px 36px;
  box-shadow:0 18px 40px rgba(11,34,56,.20);color:#C7D6E6;
}
.flow-panel h2{color:#fff;font-size:30px;margin-bottom:10px;}
.flow-panel .sub{color:#9FB6CD;font-size:15px;line-height:1.85;max-width:760px;}
.flow-steps{margin-top:30px;display:flex;flex-direction:column;gap:14px;}
.flow-steps li{
  display:flex;align-items:flex-start;gap:18px;padding:20px 22px;border-radius:14px;
  background:rgba(255,255,255,.045);border:1px solid rgba(199,214,230,.16);
  transition:background-color .2s ease,border-color .2s ease;
}
.flow-steps li:hover{background:rgba(255,255,255,.08);border-color:rgba(199,214,230,.3);}
.step-no{
  font-size:26px;font-weight:700;color:rgba(199,214,230,.42);
  font-variant-numeric:tabular-nums;line-height:1;min-width:44px;padding-top:4px;
}
.flow-steps h3{color:#fff;font-size:18px;margin-bottom:6px;}
.flow-steps p{font-size:15px;color:#A9BFD4;line-height:1.8;}
.step-state{
  margin-left:auto;align-self:center;flex:0 0 auto;
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(18,165,148,.16);color:#5FDCCB;
}
.step-state.is-warn{background:rgba(249,115,22,.16);color:#FFB27A;}
.flow-bar{margin-top:24px;height:6px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden;}
.flow-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,#12A594,#1769C9);}

/* ============ 内容卡网格 ============ */
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;height:100%;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.info-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:rgba(23,105,201,.28);}
.info-card .card-link{display:block;height:100%;color:inherit;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.info-card:hover .card-media img{transform:scale(1.03);}
.badge{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.94);color:var(--brand);box-shadow:0 2px 6px rgba(16,27,43,.10);
}
.badge.is-accent{background:var(--accent);color:#fff;}
.card-body{padding:22px 22px 20px;}
.card-body h3{font-size:20px;margin-bottom:10px;line-height:1.4;}
.card-body p{
  font-size:15px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;gap:14px;margin-top:16px;padding-top:14px;
  border-top:1px dashed var(--line);font-size:12px;color:var(--faint);
}
.card-meta i{margin-right:5px;}

/* ============ FAQ ============ */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:0;}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:16px 22px;min-height:56px;background:transparent;border:0;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background-color .18s ease,color .18s ease;
}
.faq-q:hover{background:#FAFCFF;color:var(--brand);}
.faq-q .q-ico{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .25s ease;
}
.faq-q .q-ico::before,.faq-q .q-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .q-ico::before{width:14px;height:2px;}
.faq-q .q-ico::after{width:2px;height:14px;transition:opacity .2s ease;}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .q-ico{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a .faq-a-inner{padding:0 22px 22px 22px;font-size:15px;color:var(--muted);line-height:1.9;}
.faq-item.is-open .faq-a{max-height:360px;}

/* ============ CTA 条 ============ */
.cta-bar{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--radius);box-shadow:var(--shadow-1);
  padding:30px 32px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
}
.cta-bar .cta-text{flex:1 1 420px;min-width:260px;}
.cta-bar h2{font-size:24px;margin-bottom:8px;}
.cta-bar p{font-size:15px;color:var(--muted);line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C7D6E6;padding:56px 0 0;margin-top:80px;}
.footer-main{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:32px;}
.footer-brand .brand-line{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-line .mark{width:36px;height:36px;border-radius:11px;}
.footer-brand .brand-line strong{color:#fff;font-size:16px;}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB6CD;max-width:380px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#C7D6E6;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-col li{font-size:14px;color:#9FB6CD;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(199,214,230,.16);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:#8AA2BA;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .sidebar{
    width:288px;transform:translateX(-100%);
    transition:transform .28s ease;box-shadow:0 18px 40px rgba(16,27,43,.20);
  }
  body.nav-open .sidebar{transform:translateX(0);}
  .nav-mask{display:block;}
  body.nav-open .nav-mask{opacity:1;visibility:visible;}
  .content{margin-left:0;padding-top:56px;}
  .topbar{display:flex;}
  .page-head h1{font-size:34px;}
  .page-head{padding:32px 0 32px;}
  .section{padding:56px 0;}
  .section--first{padding-top:44px;}
  .section-head h2{font-size:26px;}
  .flow-panel{padding:32px 26px;}
  .flow-panel h2{font-size:24px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .page-head h1{font-size:28px;}
  .section-head h2{font-size:24px;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:12px;}
  .head-stats{gap:18px;}
  .split-figure img{aspect-ratio:16/10;}
  .flow-steps li{flex-wrap:wrap;gap:12px;}
  .step-state{margin-left:56px;}
  .cta-bar{padding:24px 20px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-head h1{font-size:26px;}
  .head-actions .btn{width:100%;}
  .head-actions{flex-direction:column;align-items:stretch;gap:10px;}
  .head-actions .link-arrow{justify-content:center;height:44px;}
  .footer-main{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .feature-row{padding:18px;}
  .card-body{padding:18px;}
  .faq-q{padding:14px 16px;}
  .faq-a .faq-a-inner{padding:0 16px 18px 16px;}
}

/* roulang page: category2 */
:root{
  --primary:#1769C9;
  --primary-deep:#0F4E9B;
  --primary-soft:#E8F1FC;
  --accent:#F97316;
  --accent-deep:#E2620A;
  --accent-soft:#FFF1E6;
  --mint:#12A594;
  --danger:#E5484D;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#101B2B;
  --ink-2:#55657A;
  --ink-3:#97A4B4;
  --dark:#0B2238;
  --dark-2:#0E2C46;
  --rail-w:232px;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 2px 4px rgba(16,27,43,.04),0 12px 28px rgba(16,27,43,.06);
  --shadow-2:0 4px 8px rgba(16,27,43,.06),0 18px 40px rgba(16,27,43,.10);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-left:var(--rail-w);
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-deep)}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(23,105,201,.25);outline-offset:2px}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
section[id]{scroll-margin-top:90px}

/* ---------- 左侧竖向导航 ---------- */
.side-rail{
  position:fixed;left:0;top:0;bottom:0;width:var(--rail-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:8px;
  padding:24px 16px 18px;z-index:60;overflow-y:auto;
}
.rail-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.3;color:var(--ink);max-width:132px}
.nav-group{margin-bottom:6px}
.nav-group-title{
  font-size:13px;font-weight:600;color:var(--ink-3);
  letter-spacing:.01em;margin:0 0 10px;padding-left:12px;
}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);transition:background .18s ease,color .18s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:var(--ink-3);transition:color .18s ease}
.nav-item:hover{background:#F4F7FB;color:var(--primary)}
.nav-item:hover i{color:var(--primary)}
.nav-item.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600;padding-left:16px}
.nav-item.is-active i{color:var(--primary)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--primary);
}
.rail-promo{
  margin-top:auto;background:var(--accent-soft);
  border:1px solid rgba(249,115,22,.22);border-radius:14px;padding:14px;
}
.promo-tag{
  display:inline-block;font-size:12px;font-weight:600;color:#fff;
  background:var(--accent);border-radius:999px;padding:3px 10px;margin-bottom:10px;
}
.rail-promo p{font-size:13px;line-height:1.7;color:#8A4A17}
.rail-promo .btn{margin-top:12px;width:100%}

/* ---------- 移动顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  align-items:center;justify-content:space-between;gap:10px;
  padding:0 14px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);
}
.mobile-bar .brand-mini{display:flex;align-items:center;gap:8px;min-width:0}
.mobile-bar .brand-mini .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:15px}
.mobile-bar .brand-mini span{font-size:14px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:190px}
.mobile-page-name{font-size:13px;color:var(--ink-3);white-space:nowrap}
.menu-toggle{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
}
.menu-toggle:hover{border-color:rgba(23,105,201,.28);color:var(--primary)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:272px;max-width:84vw;z-index:90;
  background:#fff;padding:20px 16px;overflow-y:auto;
  transform:translateX(-102%);transition:transform .28s ease;
  box-shadow:0 18px 40px rgba(16,27,43,.16);
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(16,27,43,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(23,105,201,.22)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(249,115,22,.24)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:rgba(23,105,201,.28);color:var(--primary-deep);transform:translateY(-1px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow i{font-size:13px;transition:transform .2s ease}
.link-arrow:hover{color:var(--primary-deep)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 分类页头（紧凑标题条 + 标签行） ---------- */
.cat-head{
  position:relative;overflow:hidden;background:#fff;
  border-bottom:1px solid var(--line);padding:26px 0 34px;
}
.cat-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:repeating-linear-gradient(135deg,var(--primary) 0 1px,transparent 1px 13px);
}
.cat-head .grid-container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb i{font-size:10px;color:var(--ink-3)}
.crumb .current{color:var(--ink);font-weight:600}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  font-size:14px;color:var(--ink-2);transition:all .18s ease;
}
.chip:hover{border-color:rgba(23,105,201,.32);color:var(--primary)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.chip i{font-size:12px}
.cat-head h1{font-size:44px;margin-top:20px;max-width:960px}
.cat-intro{margin-top:14px;max-width:820px;font-size:17px;line-height:1.85;color:var(--ink-2)}
.cat-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}
.cat-actions .link-arrow{padding-left:4px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px}
.section-head h2{font-size:32px}
.section-head p{margin-top:10px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:780px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ---------- 四步自查（深色信息面板） ---------- */
.ops-panel{
  position:relative;overflow:hidden;background:var(--dark);color:#C7D6E6;
  border-radius:20px;padding:34px;box-shadow:var(--shadow-1);
}
.ops-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--mint),var(--accent));
}
.ops-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ops-step{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
  border-radius:14px;padding:20px;transition:background .2s ease,border-color .2s ease;
}
.ops-step:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2)}
.ops-step .num{
  font-family:var(--mono);font-size:28px;font-weight:700;line-height:1;
  color:rgba(255,255,255,.26);font-variant-numeric:tabular-nums;
}
.ops-step h3{color:#fff;font-size:18px;margin-top:12px}
.ops-step p{margin-top:8px;font-size:14px;line-height:1.75;color:#9FB3C8}
.ops-status{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
}
.status-line{display:inline-flex;align-items:center;gap:9px;font-size:14px;color:#C7D6E6}
.status-dot{width:8px;height:8px;flex:0 0 8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(18,165,148,.18)}
.status-dot.warn{background:var(--accent);box-shadow:0 0 0 4px rgba(249,115,22,.18)}
.status-dot.alert{background:var(--danger);box-shadow:0 0 0 4px rgba(229,72,77,.2)}
.ops-status .link-arrow{color:#8FC3FF}
.ops-status .link-arrow:hover{color:#fff}

/* ---------- 卡片网格 ---------- */
.card-grid{margin-left:-12px;margin-right:-12px}
.card-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;display:flex}
.p-card{
  display:flex;flex-direction:column;width:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.p-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(23,105,201,.28)}
.p-card-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--primary-soft)}
.p-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.p-card:hover .p-card-media img{transform:scale(1.03)}
.p-card-badge{
  position:absolute;top:12px;left:12px;padding:4px 11px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--primary);font-size:12px;font-weight:600;
  box-shadow:0 2px 6px rgba(16,27,43,.08);
}
.p-card-body{display:flex;flex-direction:column;flex:1;padding:20px 22px 22px}
.p-card-body h3{
  font-size:19px;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-card-body p{
  margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-card-link{margin-top:16px}
.p-card-meta{
  margin-top:auto;padding-top:14px;margin-bottom:0;
  border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.p-card-link{margin-top:16px}
.p-card-link + .p-card-meta{margin-top:16px}

/* ---------- 对比要点两栏 ---------- */
.compare{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:32px;box-shadow:var(--shadow-1);
}
.compare-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.compare h3{font-size:22px;margin-bottom:6px}
.compare .lead{font-size:15px;color:var(--ink-2);line-height:1.8}
.check-list{margin-top:18px}
.check-list li{
  display:flex;gap:12px;padding:13px 0;font-size:15px;line-height:1.75;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list .dot{
  flex:0 0 8px;width:8px;height:8px;border-radius:2px;background:var(--mint);margin-top:9px;
}
.compare-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img)}
.stat-row{display:flex;gap:12px;margin-top:18px}
.stat{flex:1;background:var(--primary-soft);border-radius:12px;padding:14px 16px}
.stat b{display:block;font-size:24px;line-height:1.2;color:var(--primary-deep);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;min-height:48px;padding:18px 24px;border:0;background:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);text-align:left;cursor:pointer;
  transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--primary);background:#FAFCFF}
.faq-q i{font-size:14px;color:var(--primary);transition:transform .25s ease}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:480px}
.faq-a p{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA 条 ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  background:var(--dark);border-radius:20px;padding:30px 34px;color:#C7D6E6;
}
.cta-bar::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--primary),var(--mint));
}
.cta-bar h2{color:#fff;font-size:24px}
.cta-bar p{margin-top:8px;font-size:15px;line-height:1.75;color:#9FB3C8;max-width:640px}
.cta-bar .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 精简表单 ---------- */
.mini-form{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:30px;box-shadow:var(--shadow-1);margin-top:24px;
}
.mini-form h3{font-size:22px}
.mini-form .form-sub{margin-top:8px;font-size:15px;color:var(--ink-2)}
.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input,.field select{
  width:100%;height:44px;margin:0;padding:0 14px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--ink-3)}
.field select{
  appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:38px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2355657A' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px 16px;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,105,201,.15);
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px}
.form-tip{font-size:14px;line-height:1.6}
.form-tip.is-error{color:var(--danger)}
.form-tip.is-ok{color:var(--mint)}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D6E6;padding-top:60px}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand-line{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--primary);
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:16px;
}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB3C8;max-width:420px}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:#C7D6E6}
.footer-col a{color:#C7D6E6}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:14px;font-size:13px;color:#8FA6BC;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .ops-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:1024px){
  body{padding-left:0;padding-top:56px}
  .side-rail{display:none}
  .mobile-bar{display:flex}
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .cat-head{padding:22px 0 28px}
  .cat-head h1{font-size:32px}
  .section-head h2{font-size:26px}
  .compare-grid{grid-template-columns:1fr;gap:26px}
  .form-row{grid-template-columns:repeat(2,1fr)}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:20px;padding:26px}
  .cta-bar .cta-actions{width:100%}
  .footer-main{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:48px 0}
  .section-head{margin-bottom:26px}
  .section-head h2{font-size:24px}
  .cat-head h1{font-size:28px;margin-top:16px}
  .cat-intro{font-size:15.5px}
  .ops-panel{padding:24px 20px}
  .ops-grid{grid-template-columns:1fr;gap:14px}
  .compare{padding:22px 20px}
  .compare h3{font-size:20px}
  .p-card-body{padding:18px}
  .p-card-body h3{font-size:18px}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 20px;font-size:15px}
  .mini-form{padding:22px 20px}
  .form-row{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .stat-row{flex-direction:column}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  .cat-actions{flex-direction:column;align-items:stretch}
  .cat-actions .btn{width:100%}
  .cat-actions .link-arrow{justify-content:center}
  .chip{height:34px;padding:0 13px;font-size:13px}
  .cta-bar .cta-actions .btn{width:100%}
}