/* roulang page: index */
:root{
  --ink-900:#120E2A;
  --ink-700:#1C1740;
  --paper:#F6F7FB;
  --card:#FFFFFF;
  --soft:#EEF0F7;
  --teal:#12B5A6;
  --teal-dark:#0B8C80;
  --amber:#FFB020;
  --amber-soft:#FFF3DC;
  --amber-text:#7A4A00;
  --violet:#7C5CFF;
  --text-900:#14122B;
  --text-600:#5A5872;
  --text-400:#8B89A3;
  --line:#E6E6F0;
  --success:#16A34A;
  --danger:#E5484D;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:24px;
  --sh1:0 1px 2px rgba(20,18,43,.06);
  --sh2:0 8px 24px rgba(20,18,43,.08);
  --sh3:0 20px 48px rgba(20,18,43,.12);
  --sec:112px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-dark)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.3;color:var(--text-900);font-weight:700}
h1{font-size:clamp(30px,4.2vw,52px);letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:21px;font-weight:600}
h4{font-size:17px;font-weight:600}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- Foundation 覆盖 ---------- */
.button,.button.primary,.button.secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--teal);color:#fff;border:1px solid var(--teal);
  border-radius:var(--r-btn);padding:13px 24px;font-weight:600;font-size:15px;
  line-height:1.2;transition:all .18s ease;margin:0;cursor:pointer;
}
.button:hover,.button:focus{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-1px)}
.button:active{transform:translateY(0)}
.callout{
  background:var(--card);border:1px solid var(--line);border-left:4px solid var(--teal);
  border-radius:var(--r-md);padding:16px 18px;margin:0;box-shadow:var(--sh1);
}
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{border:0}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;width:calc(100% - 0px)}
.grid-x{margin-left:0;margin-right:0}

/* ---------- 容器与通用 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--teal-dark);background:rgba(18,181,166,.1);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;letter-spacing:.02em;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head p{color:var(--text-600);font-size:15px;margin:12px 0 0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.link-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more svg{transition:transform .18s ease}
.link-more:hover svg{transform:translateX(4px)}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--teal);box-shadow:var(--sh2)}
.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:var(--r-pill);background:var(--soft);color:var(--text-600);
}
.badge-teal{background:rgba(18,181,166,.12);color:var(--teal-dark)}
.badge-amber{background:var(--amber-soft);color:var(--amber-text)}
.badge-violet{background:rgba(124,92,255,.12);color:#4A2FBF}
.starfield{
  background-color:var(--ink-900);
  background-image:
    radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px),
    radial-gradient(rgba(255,255,255,.09) 1px, transparent 1px);
  background-size:64px 64px,42px 42px;
  background-position:0 0,18px 26px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh2)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--ink-900);
  display:flex;align-items:center;justify-content:center;flex:0 0 36px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text-900);white-space:nowrap}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-400);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-600);padding:20px 12px;
  display:inline-flex;align-items:center;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--teal);border-radius:2px;transform:scaleX(0);transition:transform .18s ease;
}
.nav-link:hover{color:var(--text-900)}
.nav-link.is-active{color:var(--text-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;width:230px;height:40px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);
  transition:border-color .18s ease,background .18s ease;
}
.command-search:focus-within{border-color:var(--teal);background:#fff}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;
}
.command-search input::placeholder{color:var(--text-400)}
.command-search kbd{
  font-family:var(--font);font-size:11px;color:var(--text-400);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;background:#fff;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-600);transition:all .18s ease;
}
.icon-btn:hover{color:var(--text-900);border-color:var(--teal);background:#F1F3F9}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:13px 24px;
  border:1px solid transparent;transition:all .18s ease;cursor:pointer;line-height:1.2;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-amber{background:var(--amber);color:#3B2A00}
.btn-amber:hover{background:#FFBB3D;color:#3B2A00;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text-900)}
.btn-ghost:hover{background:#F1F3F9;color:var(--text-900)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-block{width:100%}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle span:nth-child(2){margin-top:0}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.is-open{display:block}
.mobile-nav .container{padding-top:12px;padding-bottom:20px}
.mobile-nav a{display:block;padding:13px 4px;font-size:16px;color:var(--text-900);border-bottom:1px solid var(--line)}
.mobile-nav .btn{margin-top:16px;width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;padding:88px 0 96px;overflow:hidden}
.hero::after{
  content:"";position:absolute;left:-10%;top:-40%;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(124,92,255,.22);pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-grid{align-items:center}
.hero h1{color:#fff;margin-bottom:20px}
.hero-sub{font-size:17px;color:#B9B6D6;max-width:560px;margin-bottom:22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:30px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#E6E5F5}
.hero-points svg{flex:0 0 16px;color:var(--teal)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh3)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px}
.hero-media .hero-tag{
  position:absolute;top:14px;right:14px;background:var(--amber);color:#3B2A00;
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:var(--r-pill);
}

/* ---------- 数据条 ---------- */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:32px 0}
.stat{padding:0 24px;border-left:1px solid var(--line);text-align:center}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:28px;font-weight:700;color:var(--text-900);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:13px;color:var(--text-400)}

/* ---------- 权益阶梯 ---------- */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:end}
.tier{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;
  box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tier:hover{transform:translateY(-2px);border-color:var(--teal);box-shadow:var(--sh2)}
.tier-2{position:relative;padding-top:36px;border-top:6px solid var(--amber);transform:translateY(-14px)}
.tier-2:hover{transform:translateY(-16px)}
.tier-name{font-size:13px;font-weight:700;color:var(--text-400);letter-spacing:.06em;margin-bottom:10px}
.tier h3{margin-bottom:6px}
.tier-price{display:flex;align-items:baseline;gap:8px;margin:14px 0 18px}
.tier-price strong{font-size:30px;font-weight:700;color:var(--text-900)}
.tier-price span{font-size:13px;color:var(--text-400)}
.tier-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.tier-list li{display:flex;gap:9px;font-size:14px;color:var(--text-600);line-height:1.6}
.tier-list svg{flex:0 0 16px;margin-top:4px;color:var(--teal)}
.tier-badge{position:absolute;top:-14px;right:20px;background:var(--amber);color:#3B2A00;font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--r-pill)}

/* ---------- 对比矩阵 ---------- */
.compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh1)}
table.compare{width:100%;min-width:720px;border-collapse:collapse}
table.compare th,table.compare td{padding:16px 18px;text-align:center;border-bottom:1px solid var(--line);font-size:14px}
table.compare thead th{background:var(--soft);font-weight:600;color:var(--text-900);font-size:14px}
table.compare th:first-child,table.compare td:first-child{text-align:left;font-weight:600;color:var(--text-900);background:#fff;width:34%}
table.compare tbody tr:last-child td{border-bottom:0}
.yes,.no{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%}
.yes{background:rgba(22,163,74,.14);color:var(--success)}
.no{background:var(--soft);color:var(--text-400)}

/* ---------- 限时入口 ---------- */
.limit-block{
  border-radius:var(--r-block);padding:56px;color:#fff;position:relative;overflow:hidden;
}
.limit-block h2{color:#fff}
.limit-block p{color:#B9B6D6;margin:0}
.countdown{display:flex;gap:12px;margin-top:26px}
.countdown div{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);
  min-width:78px;padding:12px 10px;text-align:center;
}
.countdown b{display:block;font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2}
.countdown span{font-size:12px;color:#B9B6D6}
.limit-side{display:flex;align-items:center;justify-content:flex-end}

/* ---------- 内容列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;overflow:hidden;height:100%}
.post-cover{aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:17px;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14px;color:var(--text-600);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums}
.post-more{font-size:13px;font-weight:600;color:var(--teal)}
.empty-state{
  grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
  padding:56px 24px;text-align:center;color:var(--text-600);
}
.empty-state .empty-mark{
  width:56px;height:56px;border-radius:50%;background:var(--soft);margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;color:var(--text-400);
}
.empty-state p{margin-bottom:18px}

/* ---------- 入口快捷区 ---------- */
.quick-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:22px}
.quick-card{
  display:block;padding:34px 32px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:#fff;box-shadow:var(--sh1);transition:all .18s ease;
}
.quick-card:hover{transform:translateY(-2px);border-color:var(--teal);box-shadow:var(--sh2)}
.quick-card .badge{margin-bottom:14px}
.quick-card h3{margin-bottom:10px;font-size:22px}
.quick-card p{color:var(--text-600);font-size:15px;margin-bottom:18px}
.quick-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px}
.quick-arrow svg{transition:transform .18s ease}
.quick-card:hover .quick-arrow svg{transform:translateX(4px)}
.quick-card.is-dark{color:#fff;border-color:transparent}
.quick-card.is-dark h3{color:#fff}
.quick-card.is-dark p{color:#B9B6D6}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.accordion-item.is-open{border-color:var(--teal);box-shadow:var(--sh1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text-900);text-align:left;
  border-left:3px solid transparent;transition:border-color .18s ease,background .18s ease;
}
.accordion-item.is-open .faq-q{border-left-color:var(--teal)}
.faq-q:hover{background:#FAFBFE}
.faq-icon{position:relative;flex:0 0 18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-400);border-radius:2px;transition:transform .2s ease,background .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.accordion-item.is-open .faq-icon::after{transform:scaleY(0)}
.accordion-item.is-open .faq-icon::before{background:var(--teal)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 20px;color:var(--text-600);font-size:15px}

/* ---------- 表单 ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh1)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-900)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px;
  font-size:15px;background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,166,.14);
}
.field textarea{min-height:120px;resize:vertical}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-600);margin-bottom:20px}
.check-row input{width:18px;height:18px;margin-top:3px;flex:0 0 18px;accent-color:var(--teal)}
.form-note{margin-top:14px;font-size:13px;color:var(--text-400)}
.form-msg{display:none;margin-top:14px;border-radius:var(--r-md);padding:12px 14px;font-size:14px;background:rgba(18,181,166,.1);color:var(--teal-dark)}
.form-msg.is-show{display:block}
.contact-card{background:var(--ink-900);color:#fff;border-radius:var(--r-lg);padding:32px;height:100%}
.contact-card h3{color:#fff}
.contact-card p{color:#B9B6D6;font-size:14px}
.contact-list{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.contact-list li{display:flex;gap:12px;font-size:14px;color:#E6E5F5}
.contact-list svg{flex:0 0 18px;margin-top:4px;color:var(--teal)}
.contact-list b{display:block;font-size:13px;color:#B9B6D6;font-weight:500}

/* ---------- 底部 CTA ---------- */
.cta-block{
  background:var(--ink-900);border-radius:var(--r-block);padding:52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-block h2{color:#fff;margin-bottom:8px}
.cta-block p{color:#B9B6D6;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#B9B6D6;padding:64px 0 28px;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08)}
.footer-brand strong{color:#fff;font-size:16px}
.footer-brand em{font-style:normal;font-size:12px;color:#B9B6D6}
.site-footer p{font-size:14px;line-height:1.8}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#B9B6D6;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8B89A3;
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:88px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .command-search{width:180px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .quick-grid{grid-template-columns:1fr 1fr}
  .tiers{grid-template-columns:1fr;align-items:stretch}
  .tier-2{transform:none;padding-top:32px}
  .tier-2:hover{transform:translateY(-2px)}
}
@media (max-width:900px){
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .command-search{display:none}
  .hero{padding:64px 0 72px}
  .hero-grid{gap:36px}
  .limit-block{padding:40px 28px}
  .limit-side{justify-content:flex-start;margin-top:28px}
}
@media (max-width:767px){
  .post-grid{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat:nth-child(3){border-left:0}
  .cta-block{padding:36px 24px}
  .form-card,.contact-card{padding:24px}
  .brand-text em{display:none}
}
@media (max-width:639px){
  :root{--sec:56px}
  .container{padding:0 18px}
  .header-inner{height:56px;gap:14px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .countdown div{min-width:64px;padding:10px 8px}
  .countdown b{font-size:22px}
  .section-head{margin-bottom:30px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink-900:#120E2A;
  --ink-700:#1C1740;
  --paper:#F6F7FB;
  --card:#FFFFFF;
  --soft:#EEF0F7;
  --star-teal:#12B5A6;
  --star-teal-dark:#0B8C80;
  --amber:#FFB020;
  --amber-soft:#FFF3DC;
  --amber-text:#7A4A00;
  --violet:#7C5CFF;
  --text-900:#14122B;
  --text-600:#5A5872;
  --text-400:#8B89A3;
  --line:#E6E6F0;
  --success:#16A34A;
  --warn:#E5484D;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:24px;
  --sh-1:0 1px 2px rgba(20,18,43,.06);
  --sh-2:0 8px 24px rgba(20,18,43,.08);
  --sh-3:0 20px 48px rgba(20,18,43,.12);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--star-teal);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--star-teal-dark)}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--star-teal);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-900)}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--ink-900);display:grid;place-items:center;flex:0 0 auto}
.brand-text strong{display:block;font-size:16px;font-weight:700;line-height:1.15;letter-spacing:.2px;color:var(--text-900)}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--text-400);line-height:1.3;font-weight:400}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;font-size:15px;font-weight:500;color:var(--text-600)}
.nav-link:hover{color:var(--text-900)}
.nav-link.is-active{color:var(--text-900);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--star-teal)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.command-search{display:flex;align-items:center;gap:8px;width:230px;height:38px;padding:0 10px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);transition:border-color .18s ease,background .18s ease}
.command-search:focus-within{border-color:var(--star-teal);background:#fff}
.command-search svg{flex:0 0 auto;color:var(--text-400)}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text-900)}
.command-search input::placeholder{color:var(--text-400)}
.kbd{font-size:11px;color:var(--text-400);background:#fff;border:1px solid var(--line);border-radius:6px;padding:1px 5px;line-height:1.5;font-variant-numeric:tabular-nums}
.icon-btn{width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--text-600);display:grid;place-items:center;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease}
.icon-btn:hover{background:#F1F3F9;color:var(--text-900)}
.nav-toggle{display:none;width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--text-900);cursor:pointer;place-items:center}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 20px}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-nav{display:grid;gap:4px;margin-bottom:14px}
.mobile-drawer .drawer-nav a{display:block;padding:11px 12px;border-radius:var(--r-md);font-size:15px;color:var(--text-900);background:var(--paper)}
.mobile-drawer .drawer-nav a.is-active{background:rgba(18,181,166,.1);color:var(--star-teal-dark);font-weight:600}
.mobile-drawer .drawer-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);margin-bottom:12px}
.mobile-drawer .drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease}
.btn-primary{background:var(--star-teal);color:#fff}
.btn-primary:hover{background:var(--star-teal-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-secondary{background:#fff;color:var(--text-900);border-color:var(--line)}
.btn-secondary:hover{background:#F1F3F9;color:var(--text-900)}
.btn-amber{background:var(--amber);color:#3B2A00}
.btn-amber:hover{background:#FFC043;color:#3B2A00;transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- page shell ---------- */
.page-main{padding:28px 0 96px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--text-400);margin-bottom:20px}
.breadcrumb a{color:var(--text-400)}
.breadcrumb a:hover{color:var(--star-teal)}
.breadcrumb .sep{color:#C9C7D8}
.breadcrumb .current{color:var(--text-600);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:340px}

/* ---------- article head ---------- */
.article-head{margin-bottom:26px;max-width:820px}
.article-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--star-teal-dark);background:rgba(18,181,166,.1);border-radius:var(--r-pill);padding:6px 12px}
.article-title{margin:16px 0 14px;font-size:clamp(26px,3.4vw,40px);line-height:1.3;font-weight:700;letter-spacing:-.2px;color:var(--text-900)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums}
.article-meta a{color:var(--text-600)}
.article-meta a:hover{color:var(--star-teal)}
.article-meta .divider{width:1px;height:12px;background:var(--line)}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:32px;align-items:start}
.article-body{max-width:720px;width:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:48px;box-shadow:var(--sh-1);min-width:0}
.article-body p{margin:0 0 1.25em;font-size:16px;line-height:1.9;color:var(--text-900)}
.article-body h2{position:relative;margin:2em 0 1em;padding-left:16px;font-size:26px;line-height:1.35;font-weight:700;color:var(--text-900)}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--star-teal)}
.article-body h3{margin:1.8em 0 .8em;font-size:21px;line-height:1.4;font-weight:600;color:var(--text-900)}
.article-body h4{margin:1.6em 0 .6em;font-size:17px;line-height:1.5;font-weight:600;color:var(--text-900)}
.article-body ul{list-style:none;margin:0 0 1.5em;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--star-teal);opacity:.85}
.article-body ol{list-style:none;counter-reset:olc;margin:0 0 1.5em;padding:0}
.article-body ol li{counter-increment:olc;position:relative;padding-left:34px;margin-bottom:.7em;line-height:1.85}
.article-body ol li::before{content:counter(olc);position:absolute;left:0;top:.35em;width:21px;height:21px;border-radius:var(--r-pill);background:var(--soft);color:var(--star-teal-dark);font-size:12px;font-weight:700;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.article-body blockquote{margin:1.6em 0;padding:16px 20px;background:var(--soft);border-left:3px solid var(--violet);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-600);font-size:15px;line-height:1.85}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.6em 0}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-400)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.article-body th{background:var(--soft);color:var(--text-900);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);line-height:1.7}
.article-body tr:last-child td{border-bottom:0}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px;background:var(--soft);border-radius:6px;padding:2px 6px;color:#3B3A55}
.article-body pre{background:var(--ink-900);color:#EDEBFA;border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;margin:1.6em 0}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body a{color:var(--star-teal);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(18,181,166,.45)}
.article-body a:hover{color:var(--star-teal-dark);text-decoration-color:var(--star-teal-dark)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

.empty-state{text-align:center;padding:48px 20px;border:1px dashed var(--line);border-radius:var(--r-md);background:var(--paper)}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:10px;padding-left:0}
.empty-state h2::before{content:none}
.empty-state p{color:var(--text-600);margin-bottom:20px}

/* ---------- sidebar ---------- */
.article-side{min-width:0}
.side-sticky{position:sticky;top:88px;display:grid;gap:16px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{margin:0 0 12px;font-size:15px;font-weight:600;color:var(--text-900)}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text-600)}
.side-list a:hover{background:var(--paper);color:var(--star-teal-dark)}
.side-list a span{color:var(--text-400);font-size:12px}
.notice-amber{background:var(--amber-soft);border:1px solid rgba(255,176,32,.4);border-radius:var(--r-md);padding:14px 16px;font-size:13px;line-height:1.75;color:var(--amber-text)}
.side-cta{background:var(--ink-900);border-radius:var(--r-lg);padding:22px;color:#fff}
.side-cta strong{display:block;font-size:16px;font-weight:600;margin-bottom:8px}
.side-cta p{font-size:13px;line-height:1.7;color:#B9B6D6;margin-bottom:16px}

/* ---------- article foot ---------- */
.article-foot{margin-top:26px;max-width:720px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh-1)}
.foot-label{font-size:13px;color:var(--text-400);margin-bottom:12px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--soft);color:var(--text-600);font-size:13px}
.tag:hover{background:var(--star-teal);color:#fff}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
.post-nav a{display:flex;flex-direction:column;gap:6px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;color:var(--text-900);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-nav a:hover{border-color:var(--star-teal);transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--text-900)}
.post-nav .dir{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-400)}
.post-nav .t{font-size:15px;font-weight:600;line-height:1.5}
.post-nav a.next{text-align:right;align-items:flex-end}
.foot-back{margin-top:20px}

/* ---------- related ---------- */
.section{margin-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:26px;font-weight:700;line-height:1.35;color:var(--text-900)}
.section-head p{font-size:14px;color:var(--text-600);margin-top:6px}
.section-head .more{font-size:14px;font-weight:600;white-space:nowrap}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--star-teal)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--ink-700);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media .badge{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--amber);color:#3B2A00}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text-900);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--star-teal-dark)}
.card-text{font-size:14px;line-height:1.7;color:var(--text-600);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums}
.card-foot .go{color:var(--star-teal);font-weight:600}

/* ---------- cta banner ---------- */
.cta-banner{position:relative;margin-top:64px;background:var(--ink-900);border-radius:var(--r-block);overflow:hidden;padding:52px}
.cta-banner::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;opacity:.26}
.cta-banner::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:28px 28px;opacity:.05}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:#fff;margin-bottom:10px}
.cta-inner p{font-size:15px;line-height:1.8;color:#B9B6D6;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink-900);color:#B9B6D6;padding:64px 0 28px;overflow:hidden;margin-top:96px}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.45) 1px,transparent 1px);background-size:30px 30px;opacity:.05;pointer-events:none}
.site-footer .container{position:relative;z-index:2}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;background:rgba(255,255,255,.08);display:grid;place-items:center}
.footer-brand strong{display:block;font-size:17px;font-weight:700;color:#fff;line-height:1.2}
.footer-brand em{display:block;font-style:normal;font-size:12px;color:#8B89A3;line-height:1.4}
.site-footer p{font-size:14px;line-height:1.85;color:#B9B6D6;max-width:420px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:#B9B6D6}
.footer-col a:hover{color:var(--star-teal)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8B89A3}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:26px}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{display:none}
  .article-body{max-width:none;padding:36px}
  .section{margin-top:64px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .command-search{display:none}
  .header-actions .btn{display:none}
  .header-actions .icon-btn{display:none}
  .nav-toggle{display:grid}
  .header-inner{height:60px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-banner{padding:40px 32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (min-width:901px){
  .mobile-drawer{display:none!important}
}
@media (max-width:767px){
  .section{margin-top:56px}
  .article-body{padding:28px 20px}
  .article-title{font-size:clamp(24px,6.4vw,30px)}
  .article-foot{padding:22px 20px}
  .post-nav{grid-template-columns:1fr}
  .post-nav a.next{text-align:left;align-items:flex-start}
  .breadcrumb .current{max-width:200px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .brand-text strong{font-size:15px}
  .related-grid{grid-template-columns:1fr}
  .cta-banner{padding:32px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:8px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --ink-900:#120E2A;
  --ink-700:#1C1740;
  --paper:#F6F7FB;
  --card:#FFFFFF;
  --soft:#EEF0F7;
  --teal:#12B5A6;
  --teal-dark:#0B8C80;
  --amber:#FFB020;
  --amber-soft:#FFF3DC;
  --amber-text:#7A4A00;
  --violet:#7C5CFF;
  --text-900:#14122B;
  --text-600:#5A5872;
  --text-400:#8B89A3;
  --line:#E6E6F0;
  --ok:#16A34A;
  --warn:#E5484D;
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-block:24px;
  --sh-1:0 1px 2px rgba(20,18,43,.06);
  --sh-2:0 8px 24px rgba(20,18,43,.08);
  --sh-3:0 20px 48px rgba(20,18,43,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--teal);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-dark)}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.3;color:var(--text-900)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
button{font-family:inherit;font-size:inherit}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
::selection{background:rgba(18,181,166,.22)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:56px 0}
.block-head{margin-bottom:32px;max-width:720px}
.block-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:10px}
.block-head p{margin:0;color:var(--text-600);font-size:15px}
.grid-margin-x{margin-left:0;margin-right:0}
.grid-margin-x > .cell{padding-left:0;padding-right:0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--ink-900);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;color:var(--text-900);letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-400)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  padding:0 14px;font-size:15px;color:var(--text-600);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--text-900)}
.nav-link.is-active{color:var(--text-900);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--teal);border-radius:2px;
}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;width:230px;height:40px;
  padding:0 10px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(18,181,166,.14)}
.command-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--text-900);
}
.command-search input::placeholder{color:var(--text-400)}
.command-search .kbd{
  font-size:11px;color:var(--text-400);border:1px solid var(--line);
  border-radius:6px;padding:1px 5px;background:var(--soft);white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--text-600);display:inline-flex;align-items:center;
  justify-content:center;transition:all .18s ease;
}
.icon-btn:hover{background:#F1F3F9;color:var(--text-900);border-color:#D9D9E6}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--text-900);
  align-items:center;justify-content:center;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px}
.mobile-panel.is-open{display:block}
.mobile-panel .command-search{width:100%;margin-bottom:14px}
.mobile-nav{display:flex;flex-direction:column;margin-bottom:16px}
.mobile-nav .nav-link{height:auto;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.mobile-nav .nav-link.is-active::after{left:0;right:auto;width:22px;bottom:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn.btn-primary{background:var(--teal);color:#fff}
.btn.btn-primary:hover{background:var(--teal-dark);color:#fff;transform:translateY(-1px)}
.btn.btn-primary:active{transform:translateY(0)}
.btn.btn-secondary{background:#fff;border-color:var(--line);color:var(--text-900)}
.btn.btn-secondary:hover{background:#F1F3F9;color:var(--text-900)}
.btn.btn-amber{background:var(--amber);color:#3B2A00}
.btn.btn-amber:hover{background:#FFBE45;color:#3B2A00}
.btn.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 面包屑 / Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--ink-900);
  background-image:linear-gradient(100deg,rgba(18,14,42,.95) 0%,rgba(28,23,64,.86) 52%,rgba(18,14,42,.93) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:44px 0 42px;min-height:224px;display:flex;align-items:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:radial-gradient(rgba(255,255,255,.85) 1px,transparent 1px);
  background-size:26px 26px;
}
.page-banner::before{
  content:"";position:absolute;right:-70px;top:-90px;width:300px;height:300px;
  border:1px solid rgba(124,92,255,.35);border-radius:50%;pointer-events:none;
}
.page-banner .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:12px;color:rgba(255,255,255,.62);margin-bottom:14px}
.crumbs a{color:rgba(255,255,255,.74)}
.crumbs a:hover{color:#fff}
.page-banner h1{font-size:clamp(28px,3.8vw,44px);color:#fff;margin-bottom:12px}
.banner-sub{max-width:660px;color:#B9B6D6;font-size:15.5px;margin:0}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;color:#fff;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  font-variant-numeric:tabular-nums;
}
.pill svg{flex:0 0 auto}

/* ---------- 筛选条 ---------- */
.filter-bar{background:#fff;border-bottom:1px solid var(--line)}
.filter-bar .container{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding-top:16px;padding-bottom:16px}
.filter-label{font-size:13px;color:var(--text-400);margin-right:2px}
.chip{
  height:34px;padding:0 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--text-600);
  font-size:14px;cursor:pointer;transition:all .18s ease;
}
.chip:hover{border-color:#CFCFDE;color:var(--text-900)}
.chip.is-active{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:600}

/* ---------- 主布局 8/4 ---------- */
.layout-8-4{row-gap:36px;align-items:flex-start}
.entry-grid{display:flex;flex-wrap:wrap;row-gap:20px}
.entry-card{
  display:flex;gap:16px;height:100%;padding:22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);color:inherit;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:var(--teal);box-shadow:var(--sh-2);color:inherit}
.entry-icon{
  width:48px;height:48px;border-radius:14px;background:#F1EFFB;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.entry-body{flex:1;min-width:0}
.entry-body h3{font-size:18px;margin-bottom:6px}
.entry-body p{font-size:14px;color:var(--text-600);margin:0 0 14px;line-height:1.7}
.entry-foot{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.entry-arrow{margin-left:auto;color:var(--text-400);display:inline-flex;transition:transform .18s ease,color .18s ease}
.entry-card:hover .entry-arrow{transform:translateX(4px);color:var(--teal)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;white-space:nowrap;
}
.badge-free{background:#E4F7F4;color:#0B8C80}
.badge-login{background:#EFEDFF;color:#4A3AB8}
.badge-info{background:var(--soft);color:var(--text-600)}
.badge-time{background:var(--amber-soft);color:var(--amber-text)}

.empty-state{
  margin-top:20px;padding:44px 24px;text-align:center;background:#fff;
  border:1px dashed #CFCFDE;border-radius:var(--r-lg);
}
.empty-state h3{font-size:17px;margin-bottom:8px}
.empty-state p{color:var(--text-600);font-size:14px;margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px}
.quick-list{list-style:none}
.quick-list li + li{border-top:1px dashed var(--line)}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--text-900);
}
.quick-list a:hover{color:var(--teal)}
.quick-list svg{flex:0 0 auto;color:var(--text-400)}
.quick-list a:hover svg{color:var(--teal)}
.callout.amber-note{
  margin:0 0 20px;display:flex;gap:10px;align-items:flex-start;
  background:var(--amber-soft);border:1px solid #F3DFB6;border-radius:var(--r-md);
  padding:14px 16px;color:var(--amber-text);font-size:13.5px;line-height:1.7;
}
.callout.amber-note strong{font-weight:600}
.cta-card{background:var(--ink-900);border-color:var(--ink-900);color:#fff;position:relative;overflow:hidden}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.cta-card h3{color:#fff;position:relative;z-index:2}
.cta-card p{color:#B9B6D6;font-size:14px;margin-bottom:16px;position:relative;z-index:2}
.cta-card .btn{position:relative;z-index:2}
@media(min-width:1024px){
  .layout-8-4{column-gap:32px;align-items:flex-start}
  .layout-8-4 > .cell.large-8{flex:8 1 0;max-width:none}
  .layout-8-4 > .cell.large-4{flex:4 1 0;max-width:none}
  .sidebar-inner{position:sticky;top:88px}
}
@media(min-width:768px){
  .entry-grid{column-gap:20px}
  .entry-grid > .cell{flex:0 0 calc(50% - 10px);max-width:calc(50% - 10px)}
}

/* ---------- 设备选择区块 ---------- */
.device-grid{display:grid;grid-template-columns:1fr;gap:20px}
.device-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.device-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--teal)}
.device-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--soft)}
.device-body{padding:24px}
.device-body h3{font-size:20px;margin:12px 0 8px}
.device-body p{font-size:14.5px;color:var(--text-600);margin-bottom:14px}
.tick-list{list-style:none}
.tick-list li{position:relative;padding-left:24px;font-size:14px;color:var(--text-600);margin-bottom:8px}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:12px;height:12px;
  border-radius:50%;background:#E4F7F4;border:2px solid var(--teal);
}
.device-card--side{background:var(--ink-700);border-color:var(--ink-700)}
.device-card--side .device-body h3{color:#fff}
.device-card--side .device-body p{color:#B9B6D6}
.device-card--side .tick-list li{color:#B9B6D6}
.device-card--side .tick-list li::before{background:transparent;border-color:var(--violet)}
@media(min-width:768px){
  .device-grid{grid-template-columns:1.45fr 1fr}
}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
table.params{min-width:560px;font-size:14.5px}
table.params th,table.params td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.params thead th{background:var(--soft);color:var(--text-900);font-weight:600;font-size:14px}
table.params tbody tr:last-child td{border-bottom:0}
table.params td{color:var(--text-600)}

/* ---------- FAQ ---------- */
.acc{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-head{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text-900);
  transition:background-color .18s ease;
}
.acc-head:hover{background:#FAFBFE}
.acc-item.is-open .acc-head{color:var(--teal-dark)}
.acc-sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-600);
  transition:transform .2s ease,border-color .2s ease,color .2s ease;
}
.acc-item.is-open .acc-sign{transform:rotate(45deg);border-color:var(--teal);color:var(--teal)}
.acc-body{display:none;padding:0 22px 22px 60px;font-size:15px;color:var(--text-600)}
.acc-item.is-open .acc-body{display:block}
.acc-item.is-open{box-shadow:inset 3px 0 0 var(--teal)}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  position:relative;overflow:hidden;background:var(--ink-900);color:#fff;
  border-radius:var(--r-block);padding:44px 28px;
  display:grid;gap:26px;align-items:center;
}
.cta-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-banner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-banner p{color:#B9B6D6;font-size:15px;margin:0}
.cta-banner > *{position:relative;z-index:2}
@media(min-width:900px){
  .cta-banner{grid-template-columns:8fr 4fr;padding:56px 52px}
  .cta-banner .cta-action{justify-self:end}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:24px}
.footer-brand{display:flex;align-items:flex-start;gap:12px}
.footer-brand strong{display:block;font-size:16px}
.footer-brand em{display:block;font-style:normal;font-size:12.5px;color:var(--text-400);margin-top:2px}
.site-footer p{font-size:14px;color:var(--text-600);margin:16px 0 0;max-width:430px}
.footer-col h4{font-size:14px;margin-bottom:14px;color:var(--text-900)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--text-600)}
.footer-col a:hover{color:var(--teal)}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-400);
}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .section{padding:88px 0}
}
@media(max-width:1023px){
  .section{padding:72px 0}
  .nav-tools .command-search,.nav-tools .icon-btn{display:none}
  .main-nav{margin-left:0}
  .nav-link{padding:0 11px;font-size:14px}
}
@media(max-width:767px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{height:56px;gap:12px}
  .brand-text strong{font-size:16px}
  .nav-tools .btn{padding:0 14px;height:40px;font-size:14px}
  .section{padding:56px 0}
  .block-head{margin-bottom:24px}
  .entry-grid > .cell{flex:0 0 100%;max-width:100%}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .page-banner{padding:34px 0 32px;min-height:200px}
  .banner-sub{font-size:14.5px}
  .entry-card{padding:18px;gap:14px}
  .entry-body h3{font-size:17px}
  .acc-body{padding:0 18px 20px 18px}
  .cta-banner{padding:36px 22px}
  .footer-bottom{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --ink-900:#120E2A;
  --ink-700:#1C1740;
  --paper:#F6F7FB;
  --card:#FFFFFF;
  --soft:#EEF0F7;
  --star-teal:#12B5A6;
  --star-teal-dark:#0B8C80;
  --amber:#FFB020;
  --amber-soft:#FFF3DC;
  --amber-text:#7A4A00;
  --violet:#7C5CFF;
  --text-900:#14122B;
  --text-600:#5A5872;
  --text-400:#8B89A3;
  --line:#E6E6F0;
  --success:#16A34A;
  --danger:#E5484D;
  --dark-text:#FFFFFF;
  --dark-sub:#B9B6D6;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-block:24px;
  --shadow-1:0 1px 2px rgba(20,18,43,.06);
  --shadow-2:0 8px 24px rgba(20,18,43,.08);
  --shadow-3:0 20px 48px rgba(20,18,43,.12);
  --container:1200px;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--star-teal);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--star-teal-dark)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;color:var(--text-900)}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--star-teal);outline-offset:2px;border-radius:4px}
button:focus:not(:focus-visible),a:focus:not(:focus-visible){outline:none}
section[id]{scroll-margin-top:92px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn svg{flex:0 0 auto}
.btn-primary{background:var(--star-teal);color:#fff}
.btn-primary:hover{background:var(--star-teal-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--text-900)}
.btn-secondary:hover{background:#F1F3F9;color:var(--text-900)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-amber{background:var(--amber);color:#3B2A00}
.btn-amber:hover{background:#FFC calendar;background:#FFC44D;color:#3B2A00}
.btn-sm{height:38px;padding:0 14px;font-size:14px}
.btn-block{width:100%}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1}
.badge-teal{background:rgba(18,181,166,.12);color:#0B8C80}
.badge-amber{background:var(--amber-soft);color:var(--amber-text)}
.badge-violet{background:rgba(124,92,255,.12);color:#5B3EE0}
.starfield{
  background-image:
    radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px),
    radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:46px 46px,28px 28px;
  background-position:0 0,14px 14px;
}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-900)}
.brand:hover{color:var(--text-900)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(150deg,#1C1740 0%,#120E2A 100%);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-text strong{display:block;font-size:16px;font-weight:700;letter-spacing:.2px;line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--text-400);line-height:1.3}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:12px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  font-size:15px;font-weight:500;color:var(--text-600);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:transparent;
  transition:background-color .18s ease;
}
.nav-link:hover{color:var(--text-900)}
.nav-link.is-active{color:var(--text-900);font-weight:600}
.nav-link.is-active::after{background:var(--star-teal)}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;width:232px;height:38px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.command-search:focus-within{border-color:var(--star-teal);box-shadow:0 0 0 3px rgba(18,181,166,.14)}
.command-search svg{flex:0 0 auto;color:var(--text-400)}
.command-search input{
  width:100%;border:0;outline:0;background:transparent;font-size:14px;color:var(--text-900);
}
.command-search input::placeholder{color:var(--text-400)}
.kbd{
  flex:0 0 auto;font-size:11px;color:var(--text-400);border:1px solid var(--line);
  border-radius:6px;padding:1px 5px;background:var(--soft);
}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-600);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:#F1F3F9;color:var(--text-900);border-color:#D9DAE8}
.hamburger{display:none;width:40px;height:38px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--text-900)}
.mobile-search{display:none;border-top:1px solid var(--line);padding:10px 0;background:#fff}
.mobile-search .command-search{width:100%;}
.nav-drawer{
  position:fixed;inset:0;z-index:120;background:rgba(18,14,42,.42);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;background:#fff;
  padding:20px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .24s ease;box-shadow:var(--shadow-3);
}
.nav-drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-head strong{font-size:15px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:var(--text-900);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--star-teal);font-weight:600}
.drawer-cta{margin-top:18px}
/* ---------- Banner ---------- */
.page-banner{
  position:relative;background:var(--ink-900);color:#fff;overflow:hidden;
  padding:34px 0 44px;
}
.banner-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.34;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,14,42,.96) 0%,rgba(18,14,42,.82) 55%,rgba(28,23,64,.78) 100%);
}
.banner-inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--dark-sub);margin-bottom:16px}
.breadcrumb a{color:var(--dark-sub)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.6}
.page-banner h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:700;color:#fff;line-height:1.2;
  max-width:820px;
}
.banner-sub{
  margin-top:16px;font-size:16px;line-height:1.8;color:var(--dark-sub);max-width:680px;
}
.banner-points{
  list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13px;color:var(--dark-sub);
}
.banner-points li{display:inline-flex;align-items:center;gap:7px}
.banner-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--star-teal);flex:0 0 auto;
}
/* ---------- 锚点条（移动端目录） ---------- */
.anchor-bar{
  display:none;gap:8px;overflow-x:auto;padding:14px 0 4px;margin-bottom:8px;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-chip{
  flex:0 0 auto;height:34px;padding:0 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;color:var(--text-600);
  font-size:14px;display:inline-flex;align-items:center;
}
.anchor-chip.is-active{background:var(--star-teal);border-color:var(--star-teal);color:#fff;font-weight:600}
/* ---------- 文档布局 ---------- */
.docs-layout{padding-top:56px;padding-bottom:8px}
.docs-aside{position:relative}
.toc-card{
  position:sticky;top:88px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;font-weight:600;color:var(--text-400);letter-spacing:.4px;margin-bottom:12px}
.toc-list{list-style:none;display:grid;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-600);
  border-left:2px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--soft);color:var(--text-900)}
.toc-list a.is-active{color:var(--star-teal);font-weight:600;border-left-color:var(--star-teal);background:rgba(18,181,166,.07)}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.toc-note p{font-size:13px;color:var(--text-400);margin-top:10px;line-height:1.7;font-variant-numeric:tabular-nums}
.docs-main{max-width:760px}
.doc-section{margin-bottom:80px}
.doc-section:last-child{margin-bottom:64px}
.doc-h2{
  position:relative;font-size:28px;font-weight:700;padding-left:16px;margin-bottom:20px;line-height:1.35;
}
.doc-h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--star-teal);
}
.doc-h3{font-size:20px;font-weight:600;margin-bottom:10px}
.lead{font-size:17px;line-height:1.9;color:var(--text-600)}
.doc-section p{color:var(--text-600);font-size:16px;line-height:1.9}
.doc-section p + p{margin-top:14px}
.doc-figure{
  margin:26px 0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  box-shadow:var(--shadow-1);
}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.doc-figure figcaption{font-size:13px;color:var(--text-400);text-align:center;padding:12px 16px;border-top:1px solid var(--line)}
.callout-amber{
  display:flex;gap:14px;align-items:flex-start;margin-top:24px;padding:18px 20px;
  background:var(--amber-soft);border-radius:var(--radius-lg);border:1px solid rgba(255,176,32,.4);
}
.callout-amber svg{flex:0 0 auto;color:var(--amber-text);margin-top:2px}
.callout-amber p{color:var(--amber-text);font-size:14.5px;line-height:1.8;margin:0}
.stat-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
}
.stat{padding:20px 22px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-size:28px;font-weight:700;color:var(--text-900);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:13px;color:var(--text-400);margin-top:4px}
/* ---------- 步骤时间轴 ---------- */
.step-list{list-style:none;position:relative;margin-top:8px}
.step-item{position:relative;padding:0 0 28px 60px}
.step-item::before{
  content:"";position:absolute;left:17px;top:40px;bottom:0;width:1px;background:var(--line);
}
.step-item:last-child{padding-bottom:0}
.step-item:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:36px;height:36px;border-radius:var(--radius-pill);
  background:var(--star-teal);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;box-shadow:0 0 0 6px rgba(18,181,166,.12);
}
.step-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 24px;box-shadow:var(--shadow-1);transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.step-body:hover{border-color:rgba(18,181,166,.5);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.step-body p{margin-top:8px;font-size:15px;line-height:1.85}
.point-list{list-style:none;margin-top:14px;display:grid;gap:8px}
.point-list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--text-600);line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--violet);opacity:.8;
}
.step-meta{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;color:var(--text-400);font-variant-numeric:tabular-nums}
/* ---------- 表格 ---------- */
.table-wrap{
  margin-top:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow-x:auto;box-shadow:var(--shadow-1);
}
.data-table{width:100%;min-width:680px;border-collapse:collapse}
.data-table th{
  background:var(--soft);text-align:left;font-size:13px;font-weight:600;color:var(--text-600);
  padding:13px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table td{
  padding:15px 18px;font-size:14.5px;color:var(--text-600);line-height:1.75;
  border-bottom:1px solid var(--line);vertical-align:top;
}
.data-table tr:last-child td{border-bottom:0}
.data-table td strong{color:var(--text-900);font-weight:600}
.data-table .nowrap{white-space:nowrap;font-variant-numeric:tabular-nums}
/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;padding:20px 0;display:flex;align-items:flex-start;
  justify-content:space-between;gap:16px;text-align:left;font-size:17px;font-weight:600;color:var(--text-900);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--star-teal-dark)}
.faq-item.is-open .faq-q{color:var(--star-teal)}
.faq-chev{flex:0 0 auto;margin-top:4px;transition:transform .22s ease;color:var(--text-400)}
.faq-item.is-open .faq-chev{transform:rotate(180deg);color:var(--star-teal)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.is-open .faq-a{max-height:620px}
.faq-a-inner{
  padding:0 0 22px 14px;border-left:3px solid transparent;font-size:15px;color:var(--text-600);line-height:1.85;
}
.faq-item.is-open .faq-a-inner{border-left-color:var(--star-teal)}
.faq-a-inner p{font-size:15px;line-height:1.85;color:var(--text-600)}
.faq-a-inner p + p{margin-top:10px}
/* ---------- 相关链接 ---------- */
.link-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.link-card:hover{border-color:var(--star-teal);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.link-card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.link-card-cover img{width:100%;height:100%;object-fit:cover}
.link-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.link-card-body h3{font-size:18px;font-weight:600}
.link-card-body p{font-size:14.5px;color:var(--text-600);line-height:1.8}
.link-card-foot{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--star-teal);
}
.link-card-foot svg{transition:transform .18s ease}
.link-card:hover .link-card-foot svg{transform:translateX(4px)}
/* ---------- CTA ---------- */
.cta-band{padding-top:8px}
.cta-inner{
  position:relative;background:var(--ink-900);border-radius:var(--radius-block);overflow:hidden;
  padding:48px 56px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:var(--shadow-3);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;opacity:.9;
  background-image:
    radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px),
    radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:46px 46px,28px 28px;background-position:0 0,14px 14px;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:28px;font-weight:700;color:#fff;line-height:1.35}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--dark-sub);line-height:1.85;max-width:640px}
.cta-action{position:relative;z-index:2}
.cta-action .btn{height:48px;padding:0 26px;font-size:16px}
/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 26px;margin-top:96px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px}
.footer-brand strong{display:block;font-size:17px;font-weight:700;line-height:1.3}
.footer-brand em{display:block;font-style:normal;font-size:12px;color:var(--text-400)}
.site-footer p{font-size:14px;color:var(--text-600);line-height:1.85;max-width:420px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-600)}
.footer-col a:hover{color:var(--star-teal)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-400);
}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .doc-section{margin-bottom:88px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .command-search{display:none}
  .hamburger{display:inline-flex}
  .anchor-bar{display:flex}
  .docs-aside{display:none}
  .docs-layout{padding-top:24px}
  .docs-main{max-width:100%}
  .doc-section{margin-bottom:72px}
  .cta-inner{padding:40px 36px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .nav-wrap{height:56px;gap:12px}
  .brand-mark{width:30px;height:30px}
  .brand-text strong{font-size:15px}
  .brand-text em{font-size:11px}
  .nav-tools .icon-btn{display:none}
  .nav-tools .btn{height:36px;padding:0 14px;font-size:14px}
  .page-banner{padding:26px 0 34px}
  .banner-sub{font-size:15px}
  .banner-points{gap:8px 16px;font-size:12.5px}
  .doc-section{margin-bottom:56px}
  .doc-h2{font-size:23px;padding-left:13px}
  .lead{font-size:16px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(3){border-bottom:0;grid-column:span 2}
  .step-item{padding-left:0;padding-bottom:24px}
  .step-item::before{display:none}
  .step-num{position:static;margin-bottom:12px;box-shadow:none}
  .step-body{padding:18px 18px}
  .faq-q{font-size:16px;padding:18px 0}
  .cta-inner{grid-template-columns:1fr;padding:32px 24px;gap:22px}
  .cta-copy h2{font-size:22px}
  .cta-action .btn{width:100%}
  .site-footer{padding:48px 0 22px;margin-top:64px}
  .site-footer p{max-width:100%}
  .footer-col h4{padding-bottom:10px;border-bottom:1px solid var(--line)}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:32px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}