/* roulang page: index */
:root{
  --primary:#1B5AA6;
  --primary-700:#14467F;
  --primary-050:#EDF3FA;
  --cyan:#2FB6A8;
  --cyan-050:#E7F7F5;
  --ember:#E4632A;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --ink:#101828;
  --ink-2:#5A6779;
  --ink-3:#8A94A6;
  --line:#E3E8EF;
  --dark:#0E2A4A;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(16,24,40,.04),0 12px 24px -12px rgba(16,24,40,.12);
  --sh-2:0 2px 4px rgba(16,24,40,.06),0 20px 32px -16px rgba(16,24,40,.18);
  --sh-3:0 8px 24px rgba(16,24,40,.10);
}
*,*::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","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.4;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:40px;line-height:1.3}
h2{font-size:28px}
h3{font-size:20px;line-height:1.5}
h4{font-size:16px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-700)}
img{display:block;max-width:100%;border:0}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.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}
section[id]{scroll-margin-top:132px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;cursor:pointer;
}
.btn-primary{background:linear-gradient(180deg,var(--primary),var(--primary-700));color:#fff}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px -10px rgba(27,90,166,.65)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700)}
.btn-outline:active{background:#E0EAF6}
.btn-ember{background:var(--ember);border-color:var(--ember);color:#fff}
.btn-ember:hover{background:#C9511F;border-color:#C9511F;color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px -12px rgba(228,99,42,.8)}
.btn-ember:active{transform:translateY(0)}
.btn-member{
  height:40px;padding:0 18px;font-size:14px;
  background:var(--primary-050);border-color:var(--ember);color:var(--ember);
}
.btn-member:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;line-height:1;background:var(--primary-050);color:var(--primary);
}
.chip-cyan{background:var(--cyan-050);color:#1E8C81}
.badge-ember{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;background:var(--ember);color:#fff;
}
.meta-line{font-size:13px;color:var(--ink-3)}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-3)}
.topbar{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-700));
  color:#fff;font-size:15px;font-weight:700;display:grid;place-items:center;letter-spacing:0;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:-.01em}
.brand:hover .brand-text{color:var(--primary)}
.site-search{position:relative;flex:1;max-width:320px;margin-left:auto}
.site-search input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:var(--primary-050);padding:0 42px 0 18px;font-size:14px;color:var(--ink);
  outline:none;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.site-search input::placeholder{color:var(--ink-3)}
.site-search input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(27,90,166,.16)}
.site-search svg{position:absolute;right:15px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-3);pointer-events:none}
.topbar-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.link-login{font-size:15px;font-weight:500;color:var(--ink-2)}
.link-login:hover{color:var(--primary)}
.icon-btn{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);align-items:center;justify-content:center;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary)}

.channelbar{
  height:52px;display:flex;align-items:center;gap:6px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  border-top:1px solid #F1F4F9;background:#FBFCFE;
}
.channelbar::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  font-size:14.5px;color:var(--ink-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.channel:hover{background:var(--primary-050);color:var(--primary)}
.channel.active{
  background:var(--primary-050);color:var(--primary);font-weight:600;
  box-shadow:inset 0 -2px 0 0 var(--primary);
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.07;
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;
  align-items:center;padding:64px 0 48px;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;background:var(--cyan-050);color:#1E8C81;font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.hero h1{max-width:16em}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:34em}
.hero-points{margin-top:24px;display:grid;gap:12px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15.5px;color:var(--ink-2)}
.tick{
  flex-shrink:0;width:18px;height:18px;border-radius:50%;background:var(--cyan-050);
  position:relative;margin-top:4px;
}
.tick::after{
  content:"";position:absolute;left:6px;top:3px;width:5px;height:9px;
  border:2px solid var(--cyan);border-top:0;border-left:0;transform:rotate(45deg);
}
.hero-cta{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:360px;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.hero-float{
  position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:12px;padding:12px 16px;box-shadow:var(--sh-3);
  font-size:13px;color:var(--ink-2);line-height:1.5;
}
.hero-float strong{display:block;font-size:15px;color:var(--ink);font-weight:600}
.trustbar{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;
  border-top:1px solid var(--line);padding:18px 0 26px;gap:0 28px;
}
.trustbar li{
  font-size:14px;color:var(--ink-2);padding:6px 0;position:relative;padding-right:28px;
}
.trustbar li:not(:last-child)::after{
  content:"";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  width:1px;height:16px;background:var(--line);
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-white{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary);
}
.section-lead{margin-top:10px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:62em}
.section-head .head-side{flex-shrink:0;padding-bottom:6px}

/* ============ 快捷入口 ============ */
.quickbar{display:flex;flex-wrap:wrap;gap:12px}
.quickbar a{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14.5px;color:var(--ink-2);box-shadow:0 1px 2px rgba(16,24,40,.03);
  transition:all .18s ease;
}
.quickbar a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-050);transform:translateY(-1px)}
.quickbar a i{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:block}

/* ============ 对比表 ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  background:#fff;box-shadow:var(--sh-1);overflow-x:auto;
}
.compare-table{width:100%;border-collapse:collapse;min-width:720px}
.compare-table th,.compare-table td{padding:0 20px;text-align:center;font-size:15px;color:var(--ink)}
.compare-table thead th{
  height:78px;background:var(--primary-050);font-weight:600;font-size:15px;
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.compare-table thead th .lv-name{display:block;font-size:16px;color:var(--primary-700);font-weight:600}
.compare-table thead th .lv-price{display:block;font-size:12.5px;color:var(--ink-3);font-weight:400;margin-top:2px}
.compare-table thead th.col-feature{
  text-align:left;font-size:14px;color:var(--ink-2);font-weight:600;width:200px;
}
.compare-table thead th.col-hot{
  background:#E4EEF9;border-top:3px solid var(--primary);position:relative;padding-top:8px;
}
.compare-table thead th.col-hot .badge-ember{position:absolute;top:-11px;left:50%;transform:translateX(-50%)}
.compare-table tbody th{
  text-align:left;font-weight:400;font-size:15px;color:var(--ink-2);height:56px;
  border-bottom:1px solid #F1F4F9;
}
.compare-table tbody td{height:56px;border-bottom:1px solid #F1F4F9}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody td.col-hot{background:rgba(237,243,250,.72)}
.compare-table tbody tr:hover td:not(.col-hot){background:var(--primary-050)}
.compare-table tbody tr:hover th{background:var(--primary-050)}
.mark-yes{
  display:inline-block;width:20px;height:20px;border-radius:50%;background:var(--cyan);position:relative;
}
.mark-yes::after{
  content:"";position:absolute;left:6px;top:3px;width:5px;height:10px;
  border:2px solid #fff;border-top:0;border-left:0;transform:rotate(45deg);
}
.mark-no{display:inline-block;width:16px;height:2px;border-radius:2px;background:var(--ink-3)}
.cell-text{font-size:14px;color:var(--ink-2)}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-3)}
.level-switch{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;display:none}

/* ============ 阶梯等级 ============ */
.steps{margin-top:-18px}
.step{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);position:relative;
}
.step:first-child{border-top:0}
.step:nth-child(even) .step-body{order:2}
.step-num{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);
  display:grid;place-items:center;font-size:15px;font-weight:600;margin-bottom:16px;
  font-variant-numeric:tabular-nums;background:#fff;
}
.step-body h3{margin-bottom:12px}
.tick-list{display:grid;gap:10px;margin-bottom:16px}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.step-media img{
  width:100%;height:230px;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}

/* ============ 内容预览卡 ============ */
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(27,90,166,.35)}
.pcard-cover{position:relative;overflow:hidden}
.pcard-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.pcard:hover .pcard-cover img{transform:scale(1.03)}
.pcard-chip{position:absolute;left:12px;top:12px}
.pcard-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.pcard-body h3{font-size:18px;line-height:1.5}
.pcard-sum{
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pcard-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);padding-top:12px;border-top:1px solid #F1F4F9;
}

/* ============ 最新信息 ============ */
.latest-layout{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start}
.post-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.post-row{
  display:grid;grid-template-columns:120px 1fr 130px;gap:18px;align-items:center;
  padding:18px 20px;border-bottom:1px solid #F1F4F9;position:relative;
  transition:background .18s ease;
}
.post-row:last-child{border-bottom:0}
.post-row::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);opacity:0;transition:opacity .18s ease;
}
.post-row:hover{background:var(--primary-050)}
.post-row:hover::before{opacity:1}
.post-thumb img{width:120px;height:80px;object-fit:cover;border-radius:var(--r-sm);background:var(--primary-050)}
.post-title{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5}
.post-row:hover .post-title{color:var(--primary)}
.post-sum{
  margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.post-meta time{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  min-height:180px;padding:32px;text-align:center;color:var(--ink-3);font-size:14.5px;
}
.empty-state .empty-icon{
  width:44px;height:44px;border-radius:50%;border:1.5px dashed var(--line);
  display:grid;place-items:center;color:var(--ink-3);
}
.sidebar{
  position:sticky;top:136px;display:grid;gap:20px;
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-list{display:grid;gap:14px}
.side-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.65}
.side-list li b{
  flex-shrink:0;width:20px;height:20px;border-radius:6px;background:var(--primary-050);
  color:var(--primary);font-size:12px;font-weight:600;display:grid;place-items:center;margin-top:2px;
}
.side-list a{color:var(--ink-2)}
.side-list a:hover{color:var(--primary)}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.7;border-top:1px solid #F1F4F9;padding-top:14px;margin-top:16px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--primary);
  position:relative;transition:transform .22s ease,background .18s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:background .18s ease;
}
.faq-icon::before{left:6px;right:6px;top:50%;height:1.5px;transform:translateY(-50%)}
.faq-icon::after{top:6px;bottom:6px;left:50%;width:1.5px;transform:translateX(-50%)}
.faq-item.open .faq-icon{background:var(--primary);transform:rotate(180deg)}
.faq-item.open .faq-icon::before{background:#fff}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 0 24px;font-size:16px;line-height:1.75;color:var(--ink-2);max-width:64em}

/* ============ 深色 CTA ============ */
.cta-section{padding:0 0 96px}
.cta-band{
  background:var(--dark);border-radius:var(--r-lg);padding:56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:36px 36px;opacity:.55;
}
.cta-left{position:relative}
.cta-band h2{color:#fff;font-size:28px}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.72);max-width:44em;line-height:1.75}
.cta-actions{position:relative;display:flex;align-items:center;gap:20px;flex-shrink:0}
.cta-actions .link-arrow{color:#fff}
.cta-actions .link-arrow:hover{color:var(--cyan)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:26em}
.footer-domain{margin-top:14px;font-size:13px;color:rgba(255,255,255,.42);letter-spacing:.02em}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-inner{gap:36px}
  .preview-grid{gap:20px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  h1{font-size:32px}
  h2{font-size:24px}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:48px 0 40px}
  .hero-media img{height:280px}
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .latest-layout{grid-template-columns:1fr}
  .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
  .step{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .step:nth-child(even) .step-body{order:0}
  .step-media img{height:200px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  h1{font-size:28px}
  h2{font-size:22px}
  .topbar{height:60px;gap:12px}
  .site-search{display:none}
  .icon-btn{display:inline-flex}
  .link-login{display:none}
  .channelbar{height:48px;gap:4px}
  .post-row{grid-template-columns:96px 1fr;gap:14px;padding:16px}
  .post-thumb img{width:96px;height:64px}
  .post-meta{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:flex-start;gap:12px}
  .sidebar{grid-template-columns:1fr}
  .preview-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px 0}
  .table-wrap{border-radius:12px}
  .compare-table th[scope="row"],.compare-table thead th.col-feature{
    position:sticky;left:0;background:#fff;z-index:2;box-shadow:1px 0 0 var(--line);
  }
  .compare-table thead th.col-feature{background:var(--primary-050)}
  .level-switch{display:flex}
}
@media (max-width:479px){
  h1{font-size:26px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --primary:#1B5AA6;
  --primary-700:#14467F;
  --primary-050:#EDF3FA;
  --cyan:#2FB6A8;
  --ember:#E4632A;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --ink:#101828;
  --ink-2:#5A6779;
  --ink-3:#8A94A6;
  --line:#E3E8EF;
  --dark:#0E2A4A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(16,24,40,.04), 0 12px 24px -12px rgba(16,24,40,.12);
  --shadow-2:0 2px 4px rgba(16,24,40,.06), 0 20px 32px -16px rgba(16,24,40,.18);
  --shadow-3:0 8px 24px rgba(16,24,40,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--primary-700);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.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 32px;}
.num,.article-meta,.breadcrumb,.footer-bottom{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.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-3);}
.topbar{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(180deg,var(--primary),var(--primary-700));
  color:#fff;font-weight:600;font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:600;white-space:nowrap;}
.site-search{
  position:relative;flex:1 1 auto;max-width:320px;
  display:flex;align-items:center;
}
.site-search input{
  width:100%;height:40px;border-radius:999px;
  border:1px solid var(--line);background:var(--primary-050);
  padding:0 42px 0 18px;font-size:14px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.site-search input::placeholder{color:var(--ink-3);}
.site-search input:focus{
  outline:none;background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(27,90,166,.18);
}
.site-search svg{
  position:absolute;right:14px;width:18px;height:18px;color:var(--ink-3);pointer-events:none;
}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.icon-btn{
  display:none;width:40px;height:40px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--ink-2);
  border:1px solid var(--line);background:#fff;transition:all .18s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(27,90,166,.35);background:var(--primary-050);}
.link-login{font-size:14px;color:var(--ink-2);}
.link-login:hover{color:var(--primary);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-member{
  height:40px;padding:0 18px;font-size:14px;
  color:var(--ember);background:var(--primary-050);
  border:1.5px solid var(--ember);
}
.btn-member:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-member:active{transform:translateY(0);}
.btn-primary{background:var(--primary);color:#fff;border:1px solid var(--primary);}
.btn-primary:hover{background:var(--primary-700);border-color:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:#fff;color:var(--primary);border:1.5px solid var(--primary);}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-ember{background:var(--ember);color:#fff;border:1px solid var(--ember);}
.btn-ember:hover{background:#c9531f;border-color:#c9531f;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-link{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.btn-link:hover{text-decoration:underline;text-underline-offset:3px;}
.btn-link:hover .arrow{transform:translateX(2px);}
.arrow{transition:transform .18s ease;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.channelbar{
  display:flex;align-items:center;gap:8px;height:52px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  border-top:1px solid var(--line);
}
.channelbar::-webkit-scrollbar{display:none;}
.channel{
  position:relative;flex:0 0 auto;
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;font-size:14px;color:var(--ink-2);
  transition:all .18s ease;
}
.channel:hover{color:var(--primary);background:var(--primary-050);}
.channel.active{color:var(--primary);background:var(--primary-050);font-weight:600;}
.channel.active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:#FBFCFE;border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;height:44px;
  font-size:13px;color:var(--ink-3);overflow:hidden;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--ink-3);}
.breadcrumb .current{
  color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%;
}

/* ---------- article ---------- */
.article-wrap{padding:48px 0 8px;}
.article-head{max-width:800px;margin:0 auto 28px;}
.article-head h1{font-size:40px;line-height:1.3;letter-spacing:-.01em;}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--ink-3);
}
.article-meta .dot{color:var(--line);}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:13px;line-height:1;white-space:nowrap;
}
.chip-cat{background:var(--primary-050);color:var(--primary);font-weight:600;}
.chip-status{background:var(--cyan);color:#fff;}
.chip-ember{background:var(--ember);color:#fff;}
.lead-block{
  max-width:800px;margin:0 auto 32px;
  background:var(--primary-050);border-left:4px solid var(--primary);
  border-radius:var(--radius-sm);padding:18px 22px;
  font-size:17px;line-height:1.8;color:var(--ink-2);
}
.article-body{max-width:800px;margin:0 auto;font-size:17px;line-height:1.85;color:var(--ink);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;margin:2.2em 0 .9em;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;margin:1.8em 0 .7em;}
.article-body h4{font-size:17px;margin:1.5em 0 .6em;}
.article-body ul{margin:0 0 1.2em;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--cyan);
}
.article-body ol{padding-left:1.4em;margin:0 0 1.2em;list-style:decimal;}
.article-body ol li{margin-bottom:.5em;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:600;}
.article-body img{border-radius:var(--radius-md);margin:1.4em auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;background:var(--primary-050);
  border-left:4px solid var(--primary);border-radius:var(--radius-sm);color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  font-size:15px;margin:1.4em 0;
  border:1px solid var(--line);border-radius:14px;
}
.article-body th{background:var(--primary-050);color:var(--primary-700);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap;}
.article-body tr:last-child td{border-bottom:0;}
.article-body pre{
  background:#F1F4F9;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{background:#F1F4F9;border-radius:6px;padding:1px 6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.empty-state{
  max-width:800px;margin:0 auto;padding:56px 24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);text-align:center;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);margin-bottom:22px;}
.article-foot{max-width:800px;margin:40px auto 0;border-top:1px solid var(--line);padding-top:28px;}
.post-nav{
  max-width:800px;margin:32px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.post-nav-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:18px 20px;box-shadow:var(--shadow-1);transition:all .18s ease;
}
.post-nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,90,166,.35);}
.post-nav-card .label{font-size:13px;color:var(--ink-3);display:block;margin-bottom:6px;}
.post-nav-card .title{font-size:15px;color:var(--ink);font-weight:600;}
.post-nav-card a{display:block;color:var(--ink);}
.post-nav-card a:hover{color:var(--primary);}
.article-actions{max-width:800px;margin:28px auto 0;}

/* ---------- section ---------- */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:28px;position:relative;padding-left:14px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--primary);
}
.section-head p{font-size:15px;color:var(--ink-2);margin:8px 0 0 14px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(27,90,166,.35);}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-050);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-thumb .chip{position:absolute;left:12px;top:12px;}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;}
.card-body p{
  font-size:14px;color:var(--ink-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);}

/* ---------- cta ---------- */
.cta-band{
  margin-top:72px;
  background:var(--dark);border-radius:var(--radius-lg);
  padding:56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:40px 40px,40px 40px;
}
.cta-band h2{font-size:28px;color:#fff;}
.cta-band p{color:rgba(255,255,255,.72);margin:10px 0 0;font-size:15px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;background:var(--dark);color:rgba(255,255,255,.7);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:56px 0 36px;
}
.site-footer .brand{color:#fff;}
.site-footer .logo-mark{background:linear-gradient(180deg,#2E74C6,var(--primary-700));}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 0;max-width:340px;}
.footer-domain{color:rgba(255,255,255,.45) !important;font-size:13px !important;letter-spacing:.02em;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .article-head h1{font-size:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .site-search{display:none;}
  .site-search.is-open{
    display:flex;position:absolute;left:16px;right:16px;top:calc(100% + 8px);
    max-width:none;z-index:70;
  }
  .site-search.is-open input{background:#fff;box-shadow:var(--shadow-3);}
  .icon-btn{display:inline-flex;}
  .link-login{display:none;}
  .topbar{gap:12px;}
  .brand-text{font-size:16px;}
  .article-wrap{padding:32px 0 0;}
  .article-head h1{font-size:28px;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .lead-block{font-size:16px;padding:16px 18px;}
  .breadcrumb .current{max-width:40%;}
  .section{padding:48px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;margin-top:48px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:479px){
  .btn{width:100%;}
  .topbar-actions .btn-member{width:auto;}
  .cta-actions{width:100%;}
}

/* roulang page: category1 */
:root{
  --primary:#1B5AA6;
  --primary-700:#14467F;
  --primary-050:#EDF3FA;
  --accent-cyan:#2FB6A8;
  --accent-ember:#E4632A;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --ink:#101828;
  --ink-2:#5A6779;
  --ink-3:#8A94A6;
  --line:#E3E8EF;
  --dark:#0E2A4A;
  --r-lg:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,24,40,.04),0 12px 24px -12px rgba(16,24,40,.12);
  --shadow-2:0 2px 4px rgba(16,24,40,.06),0 20px 32px -16px rgba(16,24,40,.18);
  --shadow-3:0 8px 24px rgba(16,24,40,.10);
  --header-h:116px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
a:hover{color:var(--primary-700)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600}
p{margin:0 0 1em}
.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{max-width:1200px;margin:0 auto;padding:0 32px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;white-space:nowrap;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 20px -12px rgba(27,90,166,.7)}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ember{background:var(--accent-ember);color:#fff}
.btn-ember:hover{background:#c9531f;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ember:active{transform:translateY(0);box-shadow:none}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.text-link::after{content:"→";transition:transform .18s ease-out}
.text-link:hover::after{transform:translateX(2px)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease-out;
}
.site-header.is-stuck{box-shadow:var(--shadow-3)}
.topbar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(180deg,var(--primary),var(--primary-700));
  color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 8px 16px -10px rgba(20,70,127,.9);
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.site-search{position:relative;margin-left:auto;width:320px;max-width:38vw}
.site-search input{
  width:100%;height:40px;padding:0 42px 0 16px;
  border-radius:var(--r-pill);border:1px solid transparent;
  background:var(--primary-050);font-size:14px;color:var(--ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.site-search input::placeholder{color:var(--ink-3)}
.site-search input:hover{background:#E4EDF8}
.site-search input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,90,166,.16)}
.site-search svg{position:absolute;right:14px;top:50%;width:18px;height:18px;transform:translateY(-50%);color:var(--ink-3);pointer-events:none}
.topbar-actions{display:flex;align-items:center;gap:14px}
.icon-btn{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--ink-2);place-items:center}
.icon-btn:hover{color:var(--primary);border-color:rgba(27,90,166,.35);background:var(--primary-050)}
.link-login{font-size:14px;color:var(--ink-2)}
.link-login:hover{color:var(--primary)}
.btn-member{
  height:40px;padding:0 18px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;font-size:14px;font-weight:600;
  background:var(--primary-050);color:var(--primary-700);
  border:1.5px solid var(--accent-ember);
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-member:hover{background:var(--primary);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-member:active{transform:translateY(0);box-shadow:none}
.channelbar{
  display:flex;align-items:center;gap:6px;height:52px;
  background:#FBFCFE;border-top:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.channelbar::-webkit-scrollbar{display:none}
.channel{
  position:relative;flex:0 0 auto;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-2);white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.channel:hover{background:var(--primary-050);color:var(--primary)}
.channel.active{background:var(--primary-050);color:var(--primary);font-weight:600}
.channel.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;
  height:2px;border-radius:2px;background:var(--primary);
}

/* ============ 面包屑 ============ */
.crumbs{background:#FBFCFE;border-bottom:1px solid var(--line)}
.crumbs .container{display:flex;align-items:center;gap:8px;height:44px;font-size:13px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#C4CDDA}
.crumbs .current{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  background:
    linear-gradient(100deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 52%,rgba(237,243,250,.78) 100%),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:center;padding-top:56px;padding-bottom:56px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:var(--primary-050);border-radius:var(--r-pill);
  padding:6px 14px;margin:0 0 18px;
}
.page-hero h1{font-size:40px;line-height:1.3;letter-spacing:-.01em;margin-bottom:16px}
.hero-lead{font-size:17px;line-height:1.75;color:var(--ink-2);max-width:34em;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.hero-meta{margin:0;font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:320px;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--primary-050);
}
.hero-float{
  position:absolute;right:18px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-2);padding:12px 16px;
}
.hero-float strong{display:block;font-size:20px;color:var(--primary);line-height:1.2}
.hero-float span{font-size:13px;color:var(--ink-3)}

/* ============ 主体两栏 ============ */
.page-main{padding:72px 0 0}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;align-items:start}
.toc{
  position:sticky;top:calc(var(--header-h) + 24px);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 10px 20px 0;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:600;color:var(--ink-3);padding:0 0 10px 20px;letter-spacing:.04em}
.toc ul li a{
  display:block;position:relative;
  padding:9px 16px 9px 20px;font-size:14px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,padding-left .18s ease-out;
}
.toc ul li a:hover{color:var(--primary);background:var(--primary-050)}
.toc ul li a.active{color:var(--primary);font-weight:600;background:var(--primary-050);border-left-color:var(--primary)}

.doc{min-width:0;padding-bottom:8px}
.doc-block{
  scroll-margin-top:calc(var(--header-h) + 24px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 34px;box-shadow:var(--shadow-1);margin-bottom:28px;
}
.doc-block:last-child{margin-bottom:0}
.doc h2{position:relative;font-size:28px;line-height:1.4;padding-left:16px;margin-bottom:18px}
.doc h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:var(--primary)}
.doc h3{font-size:20px;line-height:1.5;margin-bottom:12px}
.doc p{font-size:17px;line-height:1.85;color:var(--ink-2);margin-bottom:1.1em}
.doc p:last-child{margin-bottom:0}
.block-lead{font-size:17px;line-height:1.75;color:var(--ink-2);margin-bottom:20px}
.doc-figure{margin:24px 0;background:var(--primary-050);border-radius:12px;padding:0;overflow:hidden;border:1px solid var(--line)}
.doc-figure img{width:100%;height:280px;object-fit:cover;border-radius:12px}
.doc-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;padding:10px 16px;background:#fff}
.group{border-top:1px solid var(--line);padding-top:22px;margin-top:22px}
.group:first-of-type{border-top:0;padding-top:0;margin-top:0}
.check-list{margin:0}
.check-list li{position:relative;padding-left:26px;font-size:16px;line-height:1.8;color:var(--ink-2);margin-bottom:10px}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"✓";position:absolute;left:2px;top:0;
  color:var(--accent-cyan);font-weight:700;font-size:15px;
}

/* ============ 表格 ============ */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:14px;
  background:#fff;box-shadow:var(--shadow-1);margin-bottom:14px;
}
table{width:100%;min-width:720px;border-collapse:collapse;font-size:15px}
thead th{
  background:var(--primary-050);color:var(--primary-700);
  font-size:14px;font-weight:600;text-align:left;
  padding:16px 18px;white-space:nowrap;
}
thead th .th-sub{display:block;font-weight:400;font-size:12px;color:var(--ink-3);margin-top:2px}
thead th.col-rec{position:relative;background:#E4EDF8;border-left:2px solid var(--primary);border-right:2px solid var(--primary);padding-top:22px}
thead th.col-rec .tag-rec{
  position:absolute;top:-11px;left:18px;
  background:var(--accent-ember);color:#fff;font-size:12px;font-weight:600;
  border-radius:var(--r-pill);padding:3px 12px;
}
tbody td{padding:0 18px;height:56px;border-top:1px solid var(--line);color:var(--ink-2)}
tbody td.col-rec{background:rgba(237,243,250,.85);border-left:2px solid rgba(27,90,166,.35);border-right:2px solid rgba(27,90,166,.35)}
tbody tr:nth-child(even) td{background:rgba(16,24,40,.02)}
tbody tr:nth-child(even) td.col-rec{background:rgba(228,237,248,.9)}
tbody tr:hover td{background:rgba(237,243,250,.7)}
tbody td:first-child{color:var(--ink);font-weight:500}
.check{color:var(--accent-cyan);font-weight:700}
.dash{color:var(--ink-3)}
.table-note{font-size:13px;color:var(--ink-3);margin:0}

/* ============ 提示块 ============ */
.note{
  background:var(--primary-050);border-left:4px solid var(--primary);
  border-radius:var(--r-sm);padding:20px 22px;
  font-size:16px;line-height:1.8;color:var(--ink-2);
}
.note strong{color:var(--ink)}
.note-cyan{background:#EAF8F6;border-left-color:var(--accent-cyan)}

/* ============ 疑问速查 ============ */
.qa-list{margin:0}
.qa-list .qa-item{border-top:1px solid var(--line);padding:20px 0}
.qa-list .qa-item:first-child{border-top:0;padding-top:0}
.qa-list dt{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px}
.qa-list dd{margin:0;font-size:16px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-band{
  margin-top:28px;
  background:var(--dark);border-radius:var(--r-lg);
  padding:40px 44px;color:#fff;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:8px;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;margin:0;position:relative;z-index:1}
.cta-actions{display:flex;align-items:center;gap:18px;position:relative;z-index:1}
.cta-actions .text-link{color:#fff}
.cta-actions .text-link:hover{color:var(--accent-cyan)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);margin-top:88px;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-bottom:12px;max-width:34em}
.footer-domain{color:rgba(255,255,255,.45)!important;font-size:13px;letter-spacing:.02em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul li{margin-bottom:4px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.7);line-height:2}
.footer-col ul li a:hover{color:var(--accent-cyan)}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:32px}
}
@media (max-width:1023px){
  .page-hero .hero-grid{grid-template-columns:1fr;gap:32px;padding-top:40px;padding-bottom:44px}
  .page-hero h1{font-size:32px}
  .hero-visual img{height:240px}
  .hero-float{bottom:12px;right:12px}
  .layout{grid-template-columns:1fr;gap:24px}
  .toc{
    position:static;display:flex;gap:8px;overflow-x:auto;
    background:transparent;border:0;box-shadow:none;padding:0;border-radius:0;
    scrollbar-width:none;
  }
  .toc::-webkit-scrollbar{display:none}
  .toc-title{display:none}
  .toc ul{display:flex;gap:8px}
  .toc ul li a{
    white-space:nowrap;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-pill);padding:9px 16px;
  }
  .toc ul li a.active{border-color:transparent}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar{gap:12px}
  .brand-text{font-size:16px}
  .site-search{display:none}
  .icon-btn{display:grid;margin-left:auto}
  .link-login{display:none}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-visual img{height:200px}
  .page-main{padding-top:44px}
  .doc-block{padding:24px 18px;border-radius:14px;margin-bottom:20px}
  .doc h2{font-size:22px}
  .doc h3{font-size:18px}
  .doc p{font-size:16px;line-height:1.8}
  .doc-figure img{height:200px}
  .cta-band{grid-template-columns:1fr;padding:30px 22px;gap:20px}
  .cta-band h2{font-size:21px}
  .site-footer{padding:48px 0 22px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:520px){
  .btn,.btn-member{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .topbar-actions .icon-btn{width:40px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --primary:#1B5AA6;
  --primary-700:#14467F;
  --primary-050:#EDF3FA;
  --cyan:#2FB6A8;
  --ember:#E4632A;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --ink:#101828;
  --ink-2:#5A6779;
  --ink-3:#8A94A6;
  --line:#E3E8EF;
  --dark:#0E2A4A;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(16,24,40,.04),0 12px 24px -12px rgba(16,24,40,.12);
  --shadow-2:0 2px 4px rgba(16,24,40,.06),0 20px 32px -16px rgba(16,24,40,.18);
  --shadow-3:0 8px 24px rgba(16,24,40,.10);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-700)}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.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 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-3)}
.topbar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:18px;letter-spacing:-.01em;flex:none}
.brand:hover{color:var(--ink)}
.logo-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:17px;background:linear-gradient(135deg,var(--primary),var(--primary-700))}
.brand-text{white-space:nowrap}
.site-search{position:relative;flex:0 1 320px;margin-left:auto}
.site-search input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--primary-050);padding:0 42px 0 16px;font-size:14px;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.site-search input::placeholder{color:var(--ink-3)}
.site-search input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,90,166,.14)}
.site-search svg{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--ink-3);pointer-events:none}
.topbar-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);align-items:center;justify-content:center;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease}
.icon-btn:hover{border-color:rgba(27,90,166,.35);color:var(--primary);background:var(--primary-050)}
.link-login{font-size:14px;color:var(--ink-2);padding:8px 4px}
.link-login:hover{color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn:active{transform:translateY(0)}
.btn-member{height:40px;padding:0 18px;font-size:14px;background:var(--primary-050);color:var(--primary);border-color:var(--ember)}
.btn-member:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-700));color:#fff}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700)}
.btn-ember{background:var(--ember);color:#fff}
.btn-ember:hover{background:#c9531f;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.channelbar{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channelbar::-webkit-scrollbar{display:none}
.channel{position:relative;flex:none;padding:8px 16px;border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:background .18s ease,color .18s ease}
.channel:hover{background:#F1F5FA;color:var(--primary)}
.channel.active{background:var(--primary-050);color:var(--primary);font-weight:600}
.channel.active::after{content:"";position:absolute;left:16px;right:16px;bottom:-9px;height:2px;border-radius:2px;background:var(--primary)}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#FBFCFE;border-bottom:1px solid var(--line)}
.crumb-bar .container{display:flex;align-items:center;min-height:44px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);flex-wrap:wrap}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb .now{color:var(--ink-3);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- page head ---------- */
.page-head{background:var(--primary-050);border-bottom:1px solid var(--line);padding:56px 0}
.page-head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid rgba(27,90,166,.2);color:var(--primary);font-size:13px;font-weight:600}
.page-head h1{margin:16px 0 0;font-size:40px;line-height:1.3;letter-spacing:-.01em}
.lead{margin-top:14px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:620px}
.filter{margin-top:26px;max-width:420px}
.filter label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.filter input{width:100%;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;padding:0 16px;font-size:15px;color:var(--ink);transition:border-color .18s ease,box-shadow .18s ease}
.filter input::placeholder{color:var(--ink-3)}
.filter input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,90,166,.14)}
.filter .hint{margin-top:8px;font-size:13px;color:var(--ink-3)}
.filter .hint b{color:var(--primary);font-variant-numeric:tabular-nums}
.head-figure{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);overflow:hidden}
.head-figure img{width:100%;height:268px;object-fit:cover}
.head-figure .fig-cap{padding:14px 18px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}

/* ---------- section base ---------- */
.section{padding:76px 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:32px}
.section-head h2{font-size:28px;display:flex;align-items:center;gap:12px}
.section-head h2::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--primary)}
.section-head .desc{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:760px}

/* ---------- accordion groups ---------- */
.acc-group{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);margin-bottom:16px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.acc-group:hover{border-color:rgba(27,90,166,.35)}
.acc-group-head{width:100%;display:flex;align-items:center;gap:14px;padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;color:var(--ink)}
.acc-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:var(--primary-050);color:var(--primary);flex:none}
.acc-icon svg{width:19px;height:19px}
.acc-title{font-size:18px;font-weight:600}
.badge-count{height:24px;padding:0 10px;border-radius:999px;display:inline-flex;align-items:center;font-size:13px;background:var(--primary-050);color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums}
.acc-sign{margin-left:auto;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--primary);position:relative;flex:none;transition:transform .22s ease,background .22s ease}
.acc-sign::before,.acc-sign::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:opacity .22s ease,background .22s ease}
.acc-sign::before{left:6px;right:6px;top:11.2px;height:1.8px}
.acc-sign::after{top:6px;bottom:6px;left:11.2px;width:1.8px}
.acc-group.open .acc-sign{background:var(--primary)}
.acc-group.open .acc-sign::before{background:#fff}
.acc-group.open .acc-sign::after{opacity:0}
.acc-group-body{display:none;padding:0 22px 18px;border-top:1px solid var(--line)}
.acc-group.open .acc-group-body{display:block}
.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;gap:16px;padding:18px 0;background:none;border:0;cursor:pointer;text-align:left;color:var(--ink);font-size:17px;font-weight:600;line-height:1.6;transition:color .18s ease}
.faq-q:hover{color:var(--primary)}
.faq-mark{margin-left:auto;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);display:grid;place-items:center;font-size:15px;flex:none;line-height:1;transition:background .22s ease,color .22s ease;font-weight:600}
.faq-item.open .faq-mark{background:var(--primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.open .faq-a{max-height:460px}
.faq-a p{padding:0 44px 20px 0;font-size:16px;line-height:1.75;color:var(--ink-2)}
.acc-empty{display:none;padding:28px 22px;text-align:center;color:var(--ink-3);font-size:15px}

/* ---------- timeline ---------- */
.timeline{margin-top:8px}
.tl-list{display:grid;grid-template-columns:repeat(5,1fr)}
.tl-item{position:relative;padding-right:24px}
.tl-item::before{content:"";position:absolute;top:13px;left:34px;right:0;height:2px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-item.done::before{background:var(--cyan)}
.tl-dot{position:relative;z-index:1;width:28px;height:28px;border-radius:50%;border:2px solid var(--primary);background:#fff;color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:600;font-variant-numeric:tabular-nums}
.tl-item.done .tl-dot{background:var(--cyan);border-color:var(--cyan);color:#fff}
.tl-item.current .tl-dot{background:var(--primary);border-color:var(--primary);color:#fff}
.tl-body{margin-top:16px}
.tl-body h3{font-size:17px}
.tl-body p{margin-top:6px;font-size:14px;color:var(--ink-2)}

/* ---------- help strip ---------- */
.help-strip{background:var(--primary-050);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.help-strip h2{font-size:22px}
.help-strip p{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:640px}
.help-actions{display:flex;align-items:center;gap:16px;flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand .brand{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:320px}
.footer-domain{margin-top:12px;font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.02em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;transition:color .18s ease}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55)}
.footer-grid,.footer-bottom{padding-left:0;padding-right:0}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .head-figure img{height:220px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px}
  .tl-list{grid-template-columns:repeat(3,1fr);row-gap:36px}
  .tl-item:nth-child(3)::before{display:none}
}
@media (max-width:768px){
  .container{padding:0 24px}
  .site-search{display:none}
  .icon-btn{display:inline-flex}
  .link-login{display:none}
  .site-header.search-open .site-search{display:block;position:absolute;left:0;right:0;top:64px;padding:12px 24px;background:#fff;border-bottom:1px solid var(--line);margin:0;flex:none;box-shadow:var(--shadow-3);z-index:60}
  .page-head{padding:40px 0}
  .page-head h1{font-size:28px}
  .lead{font-size:16px}
  .section{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:24px}
  .section-head h2{font-size:23px}
  .help-strip{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .help-actions{width:100%;flex-wrap:wrap}
  .tl-list{grid-template-columns:1fr}
  .tl-item{padding:0 0 26px 48px}
  .tl-item::before{top:32px;bottom:0;left:13px;right:auto;width:2px;height:auto}
  .tl-item:last-child::before{display:none}
  .tl-item:nth-child(3)::before{display:block}
  .tl-dot{position:absolute;left:0;top:0}
  .tl-body{margin-top:0}
  .tl-body p{font-size:15px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:16px}
  .btn{padding:0 18px}
  .btn-member{height:38px;padding:0 14px;font-size:13px}
  .faq-q{font-size:16px}
  .faq-a p{padding-right:0}
  .acc-group-body{padding:0 16px 14px}
  .acc-group-head{padding:16px 16px;gap:10px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .help-actions .btn{width:100%}
}