/* roulang page: index */
:root{
  --c-primary:#0E7BE0; --c-primary-600:#0A66BF; --c-primary-050:#EAF3FF;
  --c-accent:#F97316; --c-accent-600:#EA6A0A;
  --c-ok:#10B981; --c-warn:#F59E0B; --c-danger:#D93A3A;
  --c-ink:#0E1A2B; --c-body:#33415C; --c-muted:#6B7A90;
  --c-line:#E6EBF2; --c-line-strong:#D6E2F2;
  --c-bg:#F7FAFE; --c-surface:#FFFFFF; --c-bg-alt:#F0F6FF;
  --shadow-xs:0 1px 2px rgba(14,26,43,.05);
  --shadow-card:0 2px 4px rgba(14,26,43,.04),0 12px 28px -16px rgba(14,26,43,.18);
  --shadow-hover:0 4px 8px rgba(14,26,43,.06),0 20px 40px -18px rgba(14,26,43,.24);
  --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
  --r-card:16px; --r-wrap:20px; --r-img:12px; --r-btn:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-600)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--shadow-focus);border-radius:8px}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.side-nav{
  width:248px;flex:0 0 248px;position:sticky;top:0;height:100vh;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;padding:0 16px 20px;overflow-y:auto;z-index:40;
}
.content-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 侧栏品牌 ---------- */
.brand{display:flex;align-items:center;gap:12px;height:88px;flex:0 0 88px;padding:0 6px}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(140deg,var(--c-primary) 0%,#3E9BF0 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 16px -6px rgba(14,123,224,.65);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.35;letter-spacing:-.01em}

.nav-group-label{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted);padding:18px 14px 8px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--c-body);position:relative;transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:#F2F7FD;color:var(--c-primary-600)}
.nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--c-primary);
}
.nav-side-card{
  margin-top:auto;background:var(--c-bg-alt);border:1px solid var(--c-line);border-radius:14px;
  padding:16px;display:flex;flex-direction:column;gap:10px;
}
.nav-side-card p{font-size:13px;line-height:1.7;color:var(--c-muted)}
.nav-side-card strong{color:var(--c-ink);font-size:14px;display:block;margin-bottom:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -10px rgba(14,123,224,.9)}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 18px -10px rgba(249,115,22,.9)}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong);box-shadow:var(--shadow-xs)}
.btn-ghost:hover{background:var(--c-bg-alt);color:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-block{width:100%}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);text-transform:uppercase}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;color:var(--c-ink);margin-top:10px;letter-spacing:-.01em}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--c-body)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#EFF5FF 100%);border-bottom:1px solid var(--c-line)}
.hero::after{
  content:"";position:absolute;top:-140px;right:-100px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 32% 32%,rgba(14,123,224,.18),rgba(14,123,224,0) 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:96px 0 64px;position:relative;z-index:1}
.hero-copy{max-width:560px}
.hero-copy h1{
  font-size:clamp(30px,4vw,44px);line-height:1.2;font-weight:700;letter-spacing:-.01em;
  color:var(--c-ink);margin-top:18px;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--c-body)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:34px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted)}
.hero-meta li{display:flex;align-items:center;gap:14px}
.hero-meta li+li::before{content:"·";color:var(--c-line-strong);font-size:16px;letter-spacing:0}
.hero-media{border-radius:var(--r-wrap);overflow:hidden;box-shadow:var(--shadow-card);background:#fff}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease}
.hero-media:hover img{transform:scale(1.03)}

/* ---------- 概览条 ---------- */
.overview{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.overview-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:28px 0}
.overview-item{padding:0 24px;border-left:1px solid var(--c-line)}
.overview-item:first-child{border-left:0;padding-left:0}
.overview-item dt{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted)}
.overview-item dd{margin:8px 0 0;font-size:15px;color:var(--c-ink);font-weight:600;line-height:1.6}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:95px;top:24px;bottom:24px;width:2px;background:var(--c-line)}
.tl-item{display:grid;grid-template-columns:96px 1fr;gap:32px;position:relative;padding-bottom:20px}
.tl-item:last-child{padding-bottom:0}
.tl-time{text-align:right;font-size:14px;color:var(--c-muted);padding-top:22px;font-variant-numeric:tabular-nums;line-height:1.5}
.tl-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
.tl-card::before{
  content:"";position:absolute;left:-37px;top:28px;width:10px;height:10px;border-radius:50%;
  background:#fff;border:2px solid var(--c-primary);
}
.tl-item.is-now .tl-card::before{border-color:var(--c-accent);background:var(--c-accent)}
.tl-card-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;justify-content:space-between}
.tl-card h3{font-size:19px;font-weight:600;color:var(--c-ink);line-height:1.45}
.tl-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-body)}
.tl-foot{display:flex;flex-wrap:wrap;gap:16px;margin-top:14px;font-size:13px;color:var(--c-muted)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge-cat{background:var(--c-primary-050);color:var(--c-primary)}
.badge-ok{background:rgba(16,185,129,.12);color:#0B8F63}
.badge-warn{background:rgba(245,158,11,.14);color:#B87708}
.badge-off{background:#EEF1F6;color:var(--c-muted)}
.tl-more{display:grid;grid-template-columns:96px 1fr;gap:32px;margin-top:8px}

/* ---------- 主讲与嘉宾 ---------- */
.speaker-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.speaker-lead{
  grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.speaker-lead:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
.speaker-lead-img{overflow:hidden}
.speaker-lead-img img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.speaker-lead:hover .speaker-lead-img img{transform:scale(1.04)}
.speaker-lead-body{padding:26px;display:flex;flex-direction:column;justify-content:center;gap:8px}
.speaker-lead-body h3{font-size:20px;font-weight:600;color:var(--c-ink)}
.speaker-role{font-size:13px;color:var(--c-primary);font-weight:600}
.speaker-lead-body p{font-size:14.5px;line-height:1.8;color:var(--c-body)}
.speaker-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;
  display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.speaker-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
.speaker-avatar{width:72px;height:72px;border-radius:50%;overflow:hidden;border:2px solid var(--c-primary-050)}
.speaker-avatar img{width:100%;height:100%;object-fit:cover}
.speaker-card h3{font-size:17px;font-weight:600;color:var(--c-ink)}
.speaker-card p{font-size:13.5px;line-height:1.75;color:var(--c-muted)}

/* ---------- 票种对比 ---------- */
.plan-wrap{overflow-x:auto;padding-bottom:8px}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 24px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow-card);min-width:240px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
.plan-card.is-best{border:2px solid var(--c-primary);box-shadow:var(--shadow-hover)}
.plan-tag{
  position:absolute;top:-13px;right:20px;background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;
  height:26px;line-height:26px;padding:0 12px;border-radius:999px;
}
.plan-card h3{font-size:20px;font-weight:700;color:var(--c-ink)}
.plan-price{margin-top:10px;font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.plan-price span{font-size:13px;font-weight:500;color:var(--c-muted);margin-left:4px}
.plan-desc{margin-top:10px;font-size:14px;line-height:1.75;color:var(--c-muted);min-height:52px}
.plan-list{margin-top:20px;padding-top:20px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:12px;flex:1}
.plan-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--c-body)}
.plan-list li svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;color:var(--c-ok)}
.plan-list li.no{color:var(--c-muted)}
.plan-list li.no i{width:18px;flex:0 0 18px;text-align:center;color:#B6C2D2;font-style:normal;line-height:1.5}
.plan-card .btn{margin-top:24px}

/* ---------- 资讯卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
.post-thumb{display:block;overflow:hidden;background:var(--c-bg-alt)}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:inherit}
.post-body h3 a:hover{color:var(--c-primary)}
.post-excerpt{font-size:14px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line)}
.post-date{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.post-foot .link-arrow{font-size:13px}
.post-empty{
  background:var(--c-surface);border:1px dashed var(--c-line-strong);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;font-size:15px;color:var(--c-muted);
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:32px}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;color:var(--c-ink);margin-top:10px}
.faq-aside p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--c-body)}
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-btn{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;padding:18px 4px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;transition:color .2s ease;
}
.faq-btn:hover{color:var(--c-primary)}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-panel-inner{padding:0 4px 20px;background:transparent}
.faq-item.open .faq-panel-inner{background:transparent}
.faq-panel p{font-size:15px;line-height:1.85;color:var(--c-body)}

/* ---------- 报名 CTA ---------- */
.cta-band{
  background:var(--c-primary);border-radius:var(--r-wrap);padding:44px 48px;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  box-shadow:0 24px 50px -30px rgba(14,123,224,.9);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;bottom:-120px;left:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 70%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;color:#fff}
.cta-copy p{margin-top:14px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.86)}
.cta-form{position:relative;z-index:1;background:#fff;border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card)}
.form-row{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.form-row label{font-size:14px;font-weight:600;color:var(--c-ink)}
.form-row input,.form-row select{
  height:48px;border-radius:var(--r-btn);border:1px solid var(--c-line-strong);padding:0 14px;
  font-size:15px;color:var(--c-ink);background:#fff;width:100%;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input::placeholder{color:#9AA7B8}
.form-row input:focus,.form-row select:focus{outline:none;border-color:var(--c-primary);box-shadow:var(--shadow-focus)}
.form-row select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7A90' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-hint{font-size:12.5px;color:var(--c-muted);margin-top:12px;line-height:1.7}

/* ---------- 移动顶栏与抽屉 ---------- */
.mobile-header{
  display:none;position:sticky;top:0;z-index:60;height:64px;align-items:center;justify-content:space-between;
  padding:0 20px;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease,background .25s ease;
}
.mobile-header.scrolled{box-shadow:var(--shadow-card);background:rgba(255,255,255,.92);backdrop-filter:blur(10px)}
.burger{width:40px;height:40px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:none;border:0;cursor:pointer;border-radius:10px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .25s ease,opacity .25s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-overlay{position:fixed;inset:0;background:rgba(14,26,43,.45);opacity:0;visibility:hidden;transition:opacity .24s ease;z-index:70}
.drawer-overlay.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:100%;background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .24s ease;display:flex;flex-direction:column;
  padding:0 16px 24px;overflow-y:auto;box-shadow:-20px 0 50px -30px rgba(14,26,43,.5);
}
.drawer.open{transform:translateX(0)}
.drawer .nav-item{height:48px}
.drawer .nav-item.active::before{display:none}
.drawer-close{align-self:flex-end;margin-top:12px;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-muted);font-size:20px;line-height:1;cursor:pointer}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1B2D;color:#A9B6C9;margin-top:0;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#1E88E5 0%,#4EA3F5 100%)}
.footer-brand-text{font-size:15px;font-weight:700;color:#fff;line-height:1.35}
.site-footer p{font-size:14px;line-height:1.85;color:#A9B6C9}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:#A9B6C9;transition:color .2s ease,transform .2s ease}
.footer-list a:hover{color:#4EA3F5;transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:14px;font-size:14px}
.footer-contact span{color:#7C8CA3}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7C8CA3;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .speaker-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .mobile-header{display:flex}
  .container{padding:0 28px}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:56px 0 48px}
  .hero-copy{max-width:100%}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .overview-grid{grid-template-columns:repeat(2,1fr);gap:0}
  .overview-item{padding:16px 20px}
  .overview-item:nth-child(odd){border-left:0;padding-left:0}
  .overview-item:nth-child(3),.overview-item:nth-child(4){border-top:1px solid var(--c-line)}
  .speaker-grid{grid-template-columns:repeat(2,1fr)}
  .speaker-lead{grid-column:span 2}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta-band{grid-template-columns:1fr;padding:32px 28px}
  .plan-grid{grid-template-columns:repeat(3,minmax(240px,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .hero-meta{gap:10px}
  .speaker-grid{grid-template-columns:1fr}
  .speaker-lead{grid-column:span 1;grid-template-columns:1fr}
  .speaker-lead-img img{aspect-ratio:16/10}
  .post-grid{grid-template-columns:1fr}
  .timeline::before{left:6px;top:20px}
  .tl-item{grid-template-columns:1fr;gap:0;padding-left:28px;padding-bottom:18px}
  .tl-time{text-align:left;padding-top:0;font-size:13px;font-weight:600;color:var(--c-primary)}
  .tl-card{margin-top:8px;padding:18px 20px}
  .tl-card::before{left:-27px;top:22px}
  .tl-more{grid-template-columns:1fr;padding-left:28px;gap:0}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .overview-grid{grid-template-columns:1fr}
  .overview-item{border-left:0;padding:14px 0;border-top:1px solid var(--c-line)}
  .overview-item:first-child{border-top:0}
  .drawer{width:100%}
}

/* roulang page: article */
:root{
  --c-primary:#0E7BE0;
  --c-primary-600:#0A66BF;
  --c-primary-050:#EAF3FF;
  --c-accent:#F97316;
  --c-accent-600:#EA6A0A;
  --c-ok:#10B981;
  --c-warn:#F59E0B;
  --c-danger:#D93A3A;
  --c-ink:#0E1A2B;
  --c-body:#33415C;
  --c-muted:#6B7A90;
  --c-line:#E6EBF2;
  --c-line-strong:#D6E2F2;
  --c-bg:#F7FAFE;
  --c-surface:#FFFFFF;
  --c-bg-alt:#F0F6FF;
  --r-card:16px;
  --r-panel:20px;
  --r-pic:12px;
  --r-btn:10px;
  --shadow-xs:0 1px 2px rgba(14,26,43,.05);
  --shadow-card:0 2px 4px rgba(14,26,43,.04), 0 12px 28px -16px rgba(14,26,43,.18);
  --shadow-hover:0 4px 8px rgba(14,26,43,.06), 0 20px 40px -18px rgba(14,26,43,.24);
  --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-600);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
svg{flex:none;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;left:0;top:0;width:var(--nav-w);height:100vh;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;padding:0 16px 20px;z-index:60;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.side-nav .brand{height:88px;flex:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;flex:none;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{
  font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.3;
  letter-spacing:-.01em;
}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-group-label{
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted);
  padding:18px 14px 6px;
}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 14px;
  border-radius:10px;color:var(--c-body);font-size:15px;line-height:1.4;
  transition:background .18s ease,color .18s ease;
}
.nav-item:hover{background:#F2F7FD;color:var(--c-ink);}
.nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.side-cta{
  margin-top:auto;background:var(--c-bg-alt);border-radius:14px;padding:16px;
}
.side-cta p{font-size:13px;line-height:1.7;color:var(--c-body);margin-bottom:12px;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:64px;
  align-items:center;justify-content:space-between;
  padding:0 20px;background:var(--c-surface);border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.topbar.scrolled{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 6px 20px -12px rgba(14,26,43,.35);
}
.topbar .brand-text{font-size:15px;}
.hamburger{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;display:grid;place-content:center;gap:5px;cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.hamburger:hover{background:var(--c-bg-alt);border-color:var(--c-line-strong);}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,26,43,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;width:300px;max-width:100%;height:100%;
  background:var(--c-surface);z-index:90;padding:0 20px 24px;overflow-y:auto;
  transform:translateX(100%);transition:transform .24s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px;flex:none;}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
  color:var(--c-muted);font-size:18px;line-height:1;cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{background:var(--c-bg-alt);color:var(--c-ink);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:48px;
  color:var(--c-body);font-size:15px;border-bottom:1px solid var(--c-line);
}
.drawer-link.active{color:var(--c-primary);font-weight:600;}
.drawer-link:hover{color:var(--c-primary);}
.drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.drawer-contact{font-size:13px;color:var(--c-muted);line-height:1.8;}

/* ---------- 页面主体偏移 ---------- */
.page-wrap{margin-left:var(--nav-w);display:flex;flex-direction:column;min-height:100vh;}
main{flex:1;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--c-muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;}
.breadcrumb .sep{color:#B9C4D2;}
.breadcrumb .current{
  color:var(--c-body);max-width:460px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#EFF5FF 100%);
  border-bottom:1px solid var(--c-line);
  padding:40px 0 32px;
}
.article-title{
  font-size:clamp(26px,3.4vw,36px);font-weight:700;line-height:1.3;
  letter-spacing:-.01em;color:var(--c-ink);max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:14px;color:var(--c-muted);
  font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C6D2E0;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-cat{background:var(--c-primary-050);color:var(--c-primary);}
.badge-ok{background:#E7F8F1;color:#0B8F63;}
.badge-warn{background:#FEF4E4;color:#B4700B;}
.badge-mute{background:#EEF2F7;color:#6B7A90;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-align:center;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-xs);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--shadow-xs);}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong);}
.btn-secondary:hover{background:var(--c-bg-alt);color:var(--c-primary-600);border-color:#BFD8F5;transform:translateY(-1px);}
.btn:active{transform:translateY(0);box-shadow:var(--shadow-xs);}
.btn:focus-visible{outline:none;box-shadow:var(--shadow-focus);}
.btn-block{width:100%;}
.btn-lg{height:48px;padding:0 26px;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.text-link span{transition:transform .18s ease;display:inline-block;}
.text-link:hover{color:var(--c-primary-600);text-decoration:underline;}
.text-link:hover span{transform:translateX(4px);}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;padding-top:48px;padding-bottom:24px;
}
.article-main{min-width:0;}

/* ---------- 正文排版 ---------- */
.article-content{max-width:800px;font-size:17px;line-height:1.9;color:var(--c-body);}
.article-content p{margin:0 0 1.2em;}
.article-content h2{
  font-size:24px;font-weight:700;line-height:1.35;color:var(--c-ink);
  margin:40px 0 12px;
}
.article-content h3{
  font-size:19px;font-weight:600;line-height:1.45;color:var(--c-ink);
  margin:28px 0 10px;
}
.article-content h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:22px 0 8px;}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.4em;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:.5em;}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:#F5FAFF;border-radius:0 12px 12px 0;color:var(--c-body);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-pic);margin:24px 0;}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-content a{color:var(--c-primary);text-decoration:underline;}
.article-content a:hover{color:var(--c-primary-600);}
.article-content strong{color:var(--c-ink);font-weight:700;}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
.article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;line-height:1.7;
}
.article-content th,.article-content td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;
}
.article-content thead th{background:var(--c-bg-alt);color:var(--c-ink);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#FAFCFF;}
.article-content pre{
  background:#0F1B2D;color:#E6EEF8;padding:16px 18px;border-radius:12px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
}
.article-content p code,.article-content li code{
  background:var(--c-bg-alt);padding:2px 6px;border-radius:6px;color:var(--c-primary-600);
}

/* ---------- 空态 ---------- */
.article-empty{
  max-width:800px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:48px 32px;text-align:center;box-shadow:var(--shadow-card);
}
.article-empty h2{font-size:22px;color:var(--c-ink);margin-bottom:10px;}
.article-empty p{font-size:15px;color:var(--c-muted);margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:24px;align-self:start;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
}
.side-title{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px;letter-spacing:.01em;}
.side-links{display:flex;flex-direction:column;}
.side-links li+li{border-top:1px solid var(--c-line);}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14px;color:var(--c-body);
}
.side-links a:hover{color:var(--c-primary);}
.side-links a::after{content:"→";color:#B9C4D2;font-size:14px;transition:transform .18s ease,color .18s ease;}
.side-links a:hover::after{color:var(--c-primary);transform:translateX(3px);}
.side-signup{background:var(--c-bg-alt);border-color:#DCE9FA;}
.side-signup p{font-size:14px;line-height:1.75;color:var(--c-body);margin-bottom:16px;}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.75;}

/* ---------- 相关阅读 ---------- */
.related-section{padding:56px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:24px;
}
.section-head h2{font-size:clamp(20px,2vw,24px);font-weight:700;color:var(--c-ink);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.link-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow-hover);
  border-color:rgba(14,123,224,.35);color:inherit;
}
.link-card h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.link-card:hover h3{color:var(--c-primary);}
.link-card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;font-size:13px;color:var(--c-muted);
  font-variant-numeric:tabular-nums;
}
.link-card-foot .arrow{transition:transform .18s ease;color:var(--c-primary);font-weight:600;}
.link-card:hover .link-card-foot .arrow{transform:translateX(4px);}
.back-row{display:flex;justify-content:center;margin-top:36px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F1B2D;color:#A9B6C9;padding:64px 0 32px;margin-top:80px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .brand-mark{background:rgba(255,255,255,.10);color:#4EA3F5;}
.footer-brand-text{font-size:16px;font-weight:700;color:#fff;line-height:1.35;}
.site-footer p{font-size:14px;line-height:1.85;color:#93A4BC;margin:0;}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:#8296B0;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:#A9B6C9;transition:color .18s ease,transform .18s ease;display:inline-block;}
.footer-list a:hover{color:#4EA3F5;transform:translateX(-2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7C8DA6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{gap:40px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .topbar{display:flex;}
  .page-wrap{margin-left:0;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:36px;}
  .article-side{position:static;}
  .article-content{font-size:16px;max-width:100%;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding:56px 0 28px;margin-top:64px;}
}
@media (max-width:767px){
  .container{padding-left:28px;padding-right:28px;}
  .article-hero{padding:28px 0 24px;}
  .breadcrumb .current{max-width:220px;}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:639px){
  .container{padding-left:20px;padding-right:20px;}
  .drawer{width:100%;}
  .article-title{font-size:24px;}
  .meta-row{gap:10px;font-size:13px;}
  .article-content h2{font-size:21px;margin-top:32px;}
  .article-content h3{font-size:18px;}
  .side-card{padding:20px;}
  .link-card{padding:20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;gap:6px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .back-row .btn{width:auto;}
}

/* roulang page: category1 */
:root{
    --c-primary:#0E7BE0; --c-primary-600:#0A66BF; --c-primary-050:#EAF3FF;
    --c-accent:#F97316; --c-accent-600:#EA6A0A;
    --c-ok:#10B981; --c-warn:#F59E0B; --c-danger:#D93A3A;
    --c-ink:#0E1A2B; --c-body:#33415C; --c-muted:#6B7A90;
    --c-line:#E6EBF2; --c-line-strong:#D6E2F2;
    --c-bg:#F7FAFE; --c-surface:#FFFFFF; --c-bg-alt:#F0F6FF;
    --shadow-xs:0 1px 2px rgba(14,26,43,.05);
    --shadow-card:0 2px 4px rgba(14,26,43,.04),0 12px 28px -16px rgba(14,26,43,.18);
    --shadow-hover:0 4px 8px rgba(14,26,43,.06),0 20px 40px -18px rgba(14,26,43,.24);
    --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
    --r-card:16px; --r-lg:20px; --r-img:12px; --r-btn:10px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body.site{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px; line-height:1.8; color:var(--c-body);
    background:var(--c-bg);
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
  a:hover{color:var(--c-primary-600);text-decoration:underline;}
  button{font:inherit;}
  h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
  ul{list-style:none;}

  /* ---------- 布局骨架 ---------- */
  .layout{display:flex;align-items:flex-start;min-height:100vh;}
  .sidebar{
    flex:0 0 248px; width:248px; position:sticky; top:0; height:100vh;
    background:var(--c-surface); border-right:1px solid var(--c-line);
    display:flex; flex-direction:column; padding-bottom:20px; overflow-y:auto;
  }
  .content{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:640px){.container{padding:0 28px;}}
  @media (min-width:1024px){.container{padding:0 32px;}}

  /* ---------- 侧栏品牌 ---------- */
  .brand{
    display:flex;align-items:center;gap:12px;height:88px;padding:0 20px;
    text-decoration:none;flex:0 0 auto;
  }
  .brand:hover{text-decoration:none;}
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;border-radius:12px;
    background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;
  }
  .brand-mark svg{width:22px;height:22px;}
  .brand-text{font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.35;}
  .brand:hover .brand-text{color:var(--c-primary);}

  /* ---------- 侧栏导航 ---------- */
  .nav-list{display:flex;flex-direction:column;gap:4px;padding:12px 14px;}
  .nav-group-label{
    font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted);
    padding:18px 14px 6px;
  }
  .nav-item{
    position:relative;display:flex;align-items:center;height:44px;padding-left:14px;
    border-radius:10px;font-size:15px;color:var(--c-body);
    transition:background .2s ease,color .2s ease;
  }
  .nav-item:hover{background:#F2F7FD;color:var(--c-primary);text-decoration:none;}
  .nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:2px;background:var(--c-primary);
  }
  .side-card{
    margin:auto 14px 0;background:var(--c-bg-alt);border-radius:14px;padding:16px;
  }
  .side-card p{font-size:13px;line-height:1.7;color:var(--c-body);margin-bottom:12px;}

  /* ---------- 移动端顶栏与抽屉 ---------- */
  .mobile-header{
    display:none;position:sticky;top:0;z-index:40;height:64px;
    align-items:center;justify-content:space-between;padding:0 16px;
    background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);
    transition:box-shadow .2s ease,background .2s ease;
  }
  .mobile-header.scrolled{box-shadow:0 6px 18px -12px rgba(14,26,43,.35);background:rgba(255,255,255,.92);backdrop-filter:blur(8px);}
  .mobile-brand{display:flex;align-items:center;gap:10px;text-decoration:none;}
  .mobile-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;}
  .mobile-brand .brand-mark svg{width:18px;height:18px;}
  .mobile-brand span.mb-text{font-size:15px;font-weight:700;color:var(--c-ink);}
  .hamburger{
    width:44px;height:44px;border:0;background:transparent;border-radius:10px;
    display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
    cursor:pointer;padding:0;
  }
  .hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);}
  .hamburger:hover{background:#F2F7FD;}
  .drawer{
    position:fixed;top:0;right:0;width:300px;max-width:100%;height:100vh;background:#fff;
    z-index:60;transform:translateX(105%);transition:transform .24s ease;
    display:flex;flex-direction:column;overflow-y:auto;
    box-shadow:-8px 0 30px rgba(14,26,43,.14);
  }
  .drawer.open{transform:translateX(0);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(14,26,43,.45);z-index:55;
    opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer-nav{display:flex;flex-direction:column;padding:8px 14px 20px;}
  .drawer-item{
    display:flex;align-items:center;justify-content:space-between;height:48px;
    padding:0 14px;border-radius:10px;font-size:15px;color:var(--c-body);
  }
  .drawer-item:hover{background:#F2F7FD;color:var(--c-primary);text-decoration:none;}
  .drawer-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
  .drawer-item svg{width:16px;height:16px;opacity:.55;}
  .drawer-foot{padding:16px 20px 28px;border-top:1px solid var(--c-line);margin-top:auto;}
  .drawer-foot p{font-size:13px;color:var(--c-muted);margin-bottom:12px;}

  @media (max-width:1023px){
    .sidebar{display:none;}
    .mobile-header{display:flex;}
  }

  /* ---------- 按钮体系 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    text-decoration:none;
  }
  .btn:active{transform:translateY(0);}
  .btn:focus-visible{outline:none;box-shadow:var(--shadow-focus);}
  .btn.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-xs);}
  .btn.btn-primary:hover{background:var(--c-primary-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-card);}
  .btn.btn-accent{background:var(--c-accent);color:#fff;height:48px;padding:0 24px;}
  .btn.btn-accent:hover{background:var(--c-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-card);}
  .btn.btn-ghost{background:#fff;border-color:var(--c-line-strong);color:var(--c-primary);height:48px;padding:0 24px;}
  .btn.btn-ghost:hover{background:var(--c-bg-alt);color:var(--c-primary-600);text-decoration:none;}
  .btn.btn-block{width:100%;}
  .btn[disabled]{opacity:.4;cursor:not-allowed;}

  /* ---------- 文字链 ---------- */
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);}
  .text-link svg{width:16px;height:16px;transition:transform .2s ease;}
  .text-link:hover svg{transform:translateX(4px);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    position:relative;z-index:1;display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13px;color:var(--c-muted);
  }
  .breadcrumb a{color:var(--c-muted);}
  .breadcrumb a:hover{color:var(--c-primary);}
  .breadcrumb .sep{color:#C3CEDE;}
  .breadcrumb .current{color:var(--c-body);font-weight:600;}

  /* ---------- 分类页 Hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:linear-gradient(180deg,#FFFFFF 0%,#EFF5FF 100%);
    padding:36px 0 44px;
  }
  .page-hero::after{
    content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;
    border-radius:72px;transform:rotate(18deg);pointer-events:none;
    background:linear-gradient(135deg,rgba(14,123,224,.10),rgba(249,115,22,.06));
  }
  .hero-grid{
    position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;
    gap:48px;align-items:center;margin-top:26px;
  }
  .eyebrow{
    display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
    color:var(--c-primary);margin-bottom:10px;
  }
  .hero-copy h1{
    font-size:clamp(30px,4vw,42px);font-weight:700;line-height:1.2;
    letter-spacing:-.01em;color:var(--c-ink);
  }
  .hero-lead{font-size:16px;color:var(--c-body);margin-top:16px;max-width:560px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:24px;
    font-size:12px;letter-spacing:.06em;color:var(--c-muted);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:10px;}
  .hero-meta span+span::before{content:"·";color:#C3CEDE;margin-right:2px;}
  .hero-media{
    border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;
    box-shadow:var(--shadow-card);border:1px solid var(--c-line);background:#fff;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
  .hero-media:hover img{transform:scale(1.03);}

  .anchor-bar{
    position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;
  }
  .anchor-chip{
    display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
    font-size:14px;color:var(--c-body);background:rgba(255,255,255,.82);
    border:1px solid var(--c-line);transition:color .2s ease,border-color .2s ease,background .2s ease;
  }
  .anchor-chip:hover{color:var(--c-primary);border-color:rgba(14,123,224,.4);text-decoration:none;}
  .anchor-chip.active{
    color:var(--c-primary);font-weight:600;background:#fff;border-color:transparent;
    box-shadow:inset 0 -2px 0 var(--c-primary),var(--shadow-xs);
  }

  /* ---------- 概览条 ---------- */
  .section-tight{padding:28px 0 8px;}
  .facts{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-xs);overflow:hidden;
  }
  .fact{padding:20px 24px;}
  .fact+.fact{border-left:1px solid var(--c-line);}
  .fact-label{display:block;font-size:12px;letter-spacing:.06em;color:var(--c-muted);font-weight:600;}
  .fact-value{display:block;font-size:14px;color:var(--c-ink);margin-top:6px;font-weight:600;}

  /* ---------- 通用板块 ---------- */
  .section{padding:80px 0;}
  .section-head{max-width:760px;margin-bottom:36px;}
  .section-title{
    font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;
    letter-spacing:-.01em;color:var(--c-ink);
  }
  .section-desc{font-size:16px;color:var(--c-muted);margin-top:12px;}

  /* ---------- 交替图文 ---------- */
  .zigzag{
    display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
    padding:36px 0;
  }
  .zigzag+.zigzag{border-top:1px solid var(--c-line);}
  .zigzag.reverse .zig-media{order:2;}
  .zig-media{
    border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;
    border:1px solid var(--c-line);box-shadow:var(--shadow-card);background:#fff;
  }
  .zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
  .zig-media:hover img{transform:scale(1.03);}
  .zig-body h2{
    font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.35;
    letter-spacing:-.01em;color:var(--c-ink);
  }
  .zig-body p{font-size:16px;color:var(--c-body);margin-top:14px;}
  .check-list{display:flex;flex-direction:column;gap:10px;margin:20px 0 22px;}
  .check-list li{
    position:relative;padding-left:28px;font-size:15px;line-height:1.75;color:var(--c-body);
  }
  .check-list li::before{
    content:"";position:absolute;left:0;top:7px;width:18px;height:18px;border-radius:999px;
    background:var(--c-primary-050);border:1px solid rgba(14,123,224,.35);
  }
  .check-list li::after{
    content:"";position:absolute;left:6px;top:11px;width:5px;height:9px;
    border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
    transform:rotate(40deg);
  }
  .zig-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:32px;height:32px;border-radius:10px;background:var(--c-primary-050);
    color:var(--c-primary);font-size:14px;font-weight:700;margin-bottom:14px;
  }

  /* ---------- 卡片网格 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .post-card{
    display:flex;flex-direction:column;overflow:hidden;background:#fff;
    border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .post-card:hover{
    transform:translateY(-3px);box-shadow:var(--shadow-hover);
    border-color:rgba(14,123,224,.35);
  }
  .post-card a{text-decoration:none;}
  .post-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt);}
  .post-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
  .post-card:hover .post-media img{transform:scale(1.03);}
  .post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:600;background:var(--c-primary-050);color:var(--c-primary);
    width:fit-content;
  }
  .badge-ok{background:rgba(16,185,129,.12);color:#0B8A61;}
  .post-title{
    font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-card:hover .post-title{color:var(--c-primary);}
  .post-excerpt{
    font-size:14px;line-height:1.7;color:var(--c-muted);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .post-foot{
    margin-top:auto;padding-top:10px;display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--c-muted);
  }
  .post-foot svg{width:16px;height:16px;color:var(--c-primary);transition:transform .2s ease;}
  .post-card:hover .post-foot svg{transform:translateX(4px);}

  /* ---------- 报名 CTA 带 ---------- */
  .cta-band{padding:0 0 80px;}
  .cta-inner{
    display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
    background:var(--c-primary);border-radius:var(--r-lg);padding:40px;
    box-shadow:var(--shadow-hover);
  }
  .cta-copy h2{
    font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35;color:#fff;
  }
  .cta-copy p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);margin-top:12px;}
  .cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .cta-points span{
    display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
    font-size:12px;color:#fff;background:rgba(255,255,255,.16);
  }
  .cta-form{
    display:grid;grid-template-columns:1fr 1fr;gap:14px;
    background:#fff;border-radius:var(--r-card);padding:24px;
  }
  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:14px;font-weight:600;color:var(--c-ink);}
  .field input,.field select{
    width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
    border:1px solid var(--c-line-strong);background:#fff;color:var(--c-ink);font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease;
    appearance:none;
  }
  .field select{
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7A90' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 14px center;background-size:16px;
    padding-right:40px;
  }
  .field input::placeholder{color:#9AA7B8;}
  .field input:focus,.field select:focus{
    outline:none;border-color:var(--c-primary);box-shadow:var(--shadow-focus);
  }
  .form-tip{
    display:none;grid-column:1 / -1;font-size:13px;line-height:1.6;color:#0B8A61;
    background:rgba(16,185,129,.10);border-radius:10px;padding:10px 12px;
  }
  .form-tip.show{display:block;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#0F1B2D;color:#A9B6C9;padding:64px 0 32px;margin-top:auto;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;}
  .footer-brand .brand-mark svg{width:20px;height:20px;}
  .footer-brand-text{font-size:16px;font-weight:700;color:#fff;}
  .site-footer p{font-size:14px;line-height:1.8;color:#A9B6C9;}
  .footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:14px;font-size:13px;color:#8C9AB0;}
  .footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;}
  .footer-list a{
    display:inline-block;font-size:14px;color:#A9B6C9;
    transition:color .2s ease,transform .2s ease;
  }
  .footer-list a:hover{color:#4EA3F5;text-decoration:none;transform:translateX(-2px);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;color:#7C8AA0;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1199px){
    .zigzag{gap:36px;}
  }
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:28px;}
    .hero-media{aspect-ratio:16/10;}
    .zigzag{grid-template-columns:1fr;gap:24px;padding:28px 0;}
    .zigzag.reverse .zig-media{order:0;}
    .zig-media{aspect-ratio:16/10;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .cta-inner{grid-template-columns:1fr;gap:24px;padding:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .footer-brand-col{grid-column:1 / -1;}
    .facts{grid-template-columns:repeat(2,minmax(0,1fr));}
    .fact+.fact{border-left:0;border-top:1px solid var(--c-line);}
    .fact:nth-child(1),.fact:nth-child(2){border-top:1px solid var(--c-line);}
    .fact:nth-child(1),.fact:nth-child(2){border-top:0;}
    .section{padding:64px 0;}
    .cta-band{padding-bottom:64px;}
  }
  @media (max-width:767px){
    .section{padding:56px 0;}
    .cta-band{padding-bottom:56px;}
    .container{padding:0 20px;}
    .page-hero{padding:24px 0 32px;}
    .cta-form{grid-template-columns:1fr;padding:20px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-brand-col{grid-column:auto;}
    .cta-inner{padding:24px;}
    .fact{padding:16px 18px;}
  }
  @media (max-width:639px){
    .card-grid{grid-template-columns:1fr;}
    .hero-actions .btn{width:100%;}
    .drawer{width:100%;}
  }
  @media (max-width:520px){
    .facts{grid-template-columns:1fr;}
    .fact+.fact{border-top:1px solid var(--c-line);}
    .hero-meta{column-gap:8px;}
  }

/* roulang page: category3 */
:root{
    --c-primary:#0E7BE0; --c-primary-600:#0A66BF; --c-primary-050:#EAF3FF;
    --c-accent:#F97316; --c-accent-600:#EA6A0A;
    --c-ok:#10B981; --c-warn:#F59E0B; --c-danger:#D93A3A;
    --c-ink:#0E1A2B; --c-body:#33415C; --c-muted:#6B7A90;
    --c-line:#E6EBF2; --c-line-strong:#D6E2F2;
    --c-bg:#F7FAFE; --c-surface:#FFFFFF; --c-bg-alt:#F0F6FF;
    --r-card:16px; --r-band:20px; --r-img:12px; --r-btn:10px;
    --shadow-xs:0 1px 2px rgba(14,26,43,.05);
    --shadow-card:0 2px 4px rgba(14,26,43,.04), 0 12px 28px -16px rgba(14,26,43,.18);
    --shadow-hover:0 4px 8px rgba(14,26,43,.06), 0 20px 40px -18px rgba(14,26,43,.24);
    --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  html body{
    margin:0; padding:0;
    background:var(--c-bg);
    color:var(--c-body);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px; line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  #app img{max-width:100%; display:block;}
  #app a{color:var(--c-primary); text-decoration:none;}
  #app a:hover{color:var(--c-primary-600);}
  #app p{margin:0 0 1.2em;}
  #app ul{margin:0; padding:0; list-style:none;}
  #app h1,#app h2,#app h3,#app h4{margin:0; color:var(--c-ink); font-weight:700;}
  #app button,#app input,#app select{font-family:inherit;}
  #app table{border-collapse:separate; border-spacing:0;}
  .container{width:100%; max-width:1200px; margin:0 auto; padding-left:20px; padding-right:20px;}
  @media (min-width:640px){ .container{padding-left:28px; padding-right:28px;} }
  @media (min-width:1024px){ .container{padding-left:32px; padding-right:32px;} }
  @media (min-width:1280px){ html body{font-size:17px;} }

  /* ============ 布局骨架 ============ */
  .layout{display:block; min-height:100vh;}
  .content{width:100%; min-width:0;}
  @media (min-width:1024px){
    .layout{display:flex; align-items:flex-start;}
    .content{flex:1 1 auto; width:calc(100% - 248px);}
  }

  /* ============ 左侧竖向导航 ============ */
  .sidebar{display:none;}
  @media (min-width:1024px){
    .sidebar{
      display:flex; flex-direction:column;
      width:248px; flex:0 0 248px;
      height:100vh; position:sticky; top:0;
      background:#fff; border-right:1px solid var(--c-line);
      padding:0 16px 20px; overflow-y:auto;
    }
  }
  .side-brand{display:flex; align-items:center; gap:10px; min-height:88px; padding:12px 6px;}
  .brand-mark{
    width:40px; height:40px; flex:0 0 40px; border-radius:12px;
    background:linear-gradient(135deg,#0E7BE0,#3AA0FF); color:#fff;
    display:inline-flex; align-items:center; justify-content:center;
  }
  .brand-mark svg{width:22px; height:22px; display:block;}
  .brand-text{font-size:15px; font-weight:700; line-height:1.32; color:var(--c-ink);}
  .nav-list{display:flex; flex-direction:column; gap:4px;}
  .nav-group-label{font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--c-muted); margin:18px 0 6px; padding-left:14px;}
  #app .nav-item{
    display:flex; align-items:center; justify-content:space-between; gap:8px;
    min-height:44px; padding:0 12px 0 14px; border-radius:10px;
    font-size:14.5px; font-weight:500; color:var(--c-body);
    text-decoration:none; position:relative;
    transition:background .18s ease, color .18s ease;
  }
  #app .nav-item:hover{background:#F2F7FD; color:var(--c-primary-600); text-decoration:none;}
  #app .nav-item.active{background:var(--c-primary-050); color:var(--c-primary); font-weight:600;}
  #app .nav-item.active::before{
    content:""; position:absolute; left:0; top:10px; bottom:10px; width:3px;
    border-radius:3px; background:var(--c-primary);
  }
  .side-cta{
    margin-top:auto; background:var(--c-bg-alt); border-radius:14px;
    padding:16px; font-size:13px; line-height:1.7; color:var(--c-body);
  }
  .side-cta strong{display:block; color:var(--c-ink); font-size:14px; margin-bottom:6px;}

  /* ============ 移动端顶栏与抽屉 ============ */
  .topbar{
    position:sticky; top:0; z-index:60; height:64px;
    display:flex; align-items:center; justify-content:space-between;
    padding:0 16px 0 20px; background:#fff; border-bottom:1px solid var(--c-line);
    transition:box-shadow .22s ease, background .22s ease;
  }
  .topbar.scrolled{box-shadow:0 8px 22px -18px rgba(14,26,43,.45); background:rgba(255,255,255,.92); backdrop-filter:blur(10px);}
  @media (min-width:1024px){ .topbar{display:none;} }
  .topbar-brand{display:inline-flex; align-items:center; gap:10px; text-decoration:none;}
  .topbar-brand .brand-text{font-size:14.5px;}
  .hamburger{
    width:44px; height:44px; display:inline-flex; flex-direction:column;
    align-items:center; justify-content:center; gap:5px;
    background:transparent; border:0; border-radius:10px; cursor:pointer;
  }
  .hamburger span{display:block; width:20px; height:2px; border-radius:2px; background:var(--c-ink); transition:transform .2s ease, opacity .2s ease;}
  .hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .drawer-mask{
    position:fixed; inset:0; background:rgba(14,26,43,.45); z-index:80;
    opacity:0; pointer-events:none; transition:opacity .24s ease;
  }
  .drawer-mask.show{opacity:1; pointer-events:auto;}
  .drawer{
    position:fixed; top:0; right:0; height:100%; width:300px; max-width:88vw;
    background:#fff; z-index:90; padding:0 18px 24px; overflow-y:auto;
    display:flex; flex-direction:column;
    transform:translateX(100%); transition:transform .24s ease;
    box-shadow:-24px 0 48px -34px rgba(14,26,43,.55);
  }
  .drawer.open{transform:translateX(0);}
  @media (max-width:480px){ .drawer{width:100%; max-width:100%;} }
  @media (min-width:1024px){ .drawer,.drawer-mask{display:none;} }
  .drawer .nav-item{min-height:48px;}
  .drawer .nav-item::after{content:"›"; color:var(--c-muted); font-size:18px; line-height:1;}
  .drawer-foot{margin-top:auto; padding-top:20px;}

  /* ============ 按钮与徽章 ============ */
  #app .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 22px; border-radius:var(--r-btn);
    font-size:15px; font-weight:600; text-decoration:none; cursor:pointer;
    border:1px solid transparent;
    transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  }
  #app .btn:hover{transform:translateY(-1px); text-decoration:none;}
  #app .btn:active{transform:translateY(0);}
  #app .btn-primary{background:var(--c-primary); color:#fff; box-shadow:0 6px 16px -10px rgba(14,123,224,.75);}
  #app .btn-primary:hover{background:var(--c-primary-600); color:#fff; box-shadow:0 12px 24px -12px rgba(14,123,224,.8);}
  #app .btn-accent{background:var(--c-accent); color:#fff; box-shadow:0 6px 16px -10px rgba(249,115,22,.7);}
  #app .btn-accent:hover{background:var(--c-accent-600); color:#fff;}
  #app .btn-secondary{background:#fff; color:var(--c-primary); border-color:var(--c-line-strong);}
  #app .btn-secondary:hover{background:var(--c-bg-alt); border-color:var(--c-primary); color:var(--c-primary-600);}
  #app .btn-block{width:100%;}
  #app .btn-lg{height:48px; padding:0 26px;}
  #app .btn:focus-visible,#app a:focus-visible,#app button:focus-visible,#app input:focus-visible,#app select:focus-visible{
    outline:none; box-shadow:var(--shadow-focus);
  }
  .badge{display:inline-flex; align-items:center; height:24px; padding:0 10px; border-radius:999px; font-size:12px; font-weight:600; line-height:1;}
  .badge-rec{background:var(--c-accent); color:#fff;}
  .badge-cat{background:var(--c-primary-050); color:var(--c-primary);}
  .badge-ok{background:#E7F8F1; color:var(--c-ok);}
  .badge-warn{background:#FEF3E2; color:var(--c-warn);}

  /* ============ Hero ============ */
  .page-hero{
    position:relative; overflow:hidden;
    padding:40px 0 56px;
    background:linear-gradient(160deg,#FFFFFF 0%,#EFF5FF 100%);
    border-bottom:1px solid var(--c-line);
  }
  .page-hero::after{
    content:""; position:absolute; top:-120px; right:-80px; width:340px; height:340px;
    border-radius:36px; background:rgba(14,123,224,.07); transform:rotate(18deg);
    pointer-events:none;
  }
  @media (min-width:1024px){ .page-hero{padding:56px 0 72px;} }
  .breadcrumb{display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:14px; color:var(--c-muted); margin-bottom:20px;}
  .breadcrumb a{color:var(--c-muted); text-decoration:none;}
  .breadcrumb a:hover{color:var(--c-primary);}
  .breadcrumb .sep{color:#C4CFDD;}
  .breadcrumb .current{color:var(--c-body); font-weight:500;}
  .hero-grid{display:grid; gap:32px; position:relative; z-index:1;}
  @media (min-width:1024px){ .hero-grid{grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;} }
  .page-hero h1{font-size:clamp(30px,4vw,44px); line-height:1.2; letter-spacing:-.01em; margin-bottom:16px;}
  .hero-lead{font-size:16.5px; line-height:1.85; color:var(--c-body); max-width:560px; margin:0 0 18px;}
  .hero-facts{display:flex; flex-wrap:wrap; gap:10px 18px; font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--c-muted);}
  .hero-facts span{position:relative; padding-right:18px;}
  .hero-facts span:not(:last-child)::after{content:"·"; position:absolute; right:4px; color:#C4CFDD;}
  .hero-figure{margin:0; border-radius:var(--r-band); overflow:hidden; box-shadow:var(--shadow-card); background:#fff;}
  .hero-figure .ratio{position:relative; width:100%; aspect-ratio:16/11; overflow:hidden;}
  .hero-figure img{width:100%; height:100%; object-fit:cover; transition:transform .4s ease;}
  .hero-figure:hover img{transform:scale(1.03);}
  .anchor-tabs{display:flex; flex-wrap:wrap; gap:8px; margin-top:30px;}
  #app .anchor-tab{
    display:inline-flex; align-items:center; height:36px; padding:0 16px;
    border-radius:999px; border:1px solid var(--c-line); background:#fff;
    font-size:13.5px; font-weight:500; color:var(--c-body); text-decoration:none;
    transition:border-color .18s ease, color .18s ease, background .18s ease;
  }
  #app .anchor-tab:hover{border-color:rgba(14,123,224,.45); color:var(--c-primary); text-decoration:none;}
  #app .anchor-tab.active{
    background:var(--c-primary-050); border-color:rgba(14,123,224,.32); color:var(--c-primary);
    font-weight:600; text-decoration:underline; text-underline-offset:4px;
  }

  /* ============ 板块通用 ============ */
  .section{padding:56px 0;}
  @media (min-width:1024px){ .section{padding:80px 0;} }
  .section-alt{background:var(--c-bg-alt); border-top:1px solid var(--c-line); border-bottom:1px solid var(--c-line);}
  .section-head{max-width:760px; margin-bottom:32px;}
  @media (min-width:1024px){ .section-head{margin-bottom:40px;} }
  .eyebrow{font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--c-primary); margin-bottom:10px;}
  .section-title{font-size:clamp(24px,2.6vw,32px); line-height:1.3; margin-bottom:12px;}
  .section-sub{font-size:15.5px; line-height:1.85; color:var(--c-muted); margin:0;}
  section[id]{scroll-margin-top:88px;}

  /* ============ 对比表 ============ */
  .compare-card{
    background:#fff; border:1px solid var(--c-line); border-radius:var(--r-band);
    box-shadow:var(--shadow-card); overflow:hidden;
  }
  .compare-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch;}
  .compare-table{width:100%; min-width:860px; font-size:14.5px; line-height:1.7;}
  .compare-table th,.compare-table td{
    padding:16px 20px; text-align:left; vertical-align:middle;
    border-bottom:1px solid var(--c-line);
  }
  .compare-table thead th{
    background:#FAFCFF; padding-top:22px; padding-bottom:22px;
    border-bottom:1px solid var(--c-line-strong);
  }
  .compare-table thead th.is-rec{background:var(--c-primary-050); border-top:3px solid var(--c-primary);}
  .compare-table td.is-rec{background:#F5F9FF;}
  .compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0;}
  .col-benefit{
    width:210px; min-width:190px; font-size:14px; font-weight:600; color:var(--c-ink);
    background:#fff !important;
  }
  .compare-table thead .col-benefit{background:#FAFCFF !important;}
  .compare-table tbody .col-benefit{position:sticky; left:0; z-index:2; box-shadow:1px 0 0 var(--c-line);}
  .plan-name{display:block; font-size:17px; font-weight:700; color:var(--c-ink); margin-bottom:4px;}
  .plan-meta{display:block; font-size:13px; font-weight:600; color:var(--c-primary); margin-bottom:6px;}
  .plan-fit{display:block; font-size:13px; line-height:1.65; color:var(--c-muted); font-weight:400;}
  .plan-flag{display:inline-flex; margin-bottom:8px;}
  .mark-yes{color:var(--c-primary); font-weight:600;}
  .mark-no{color:#9AA7B8;}
  .compare-foot{
    display:flex; flex-wrap:wrap; gap:14px; align-items:center; justify-content:space-between;
    padding:20px 24px; background:#FAFCFF; border-top:1px solid var(--c-line);
  }
  .compare-foot p{margin:0; font-size:13.5px; color:var(--c-muted);}

  /* ============ 补充说明两卡 ============ */
  .note-grid{display:grid; gap:24px;}
  @media (min-width:768px){ .note-grid{grid-template-columns:repeat(2,1fr);} }
  .note-card{
    background:#fff; border:1px solid var(--c-line); border-radius:var(--r-card);
    padding:28px 24px; box-shadow:var(--shadow-card);
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  @media (min-width:1024px){ .note-card{padding:32px 30px;} }
  .note-card:hover{transform:translateY(-3px); box-shadow:var(--shadow-hover); border-color:rgba(14,123,224,.35);}
  .note-card h3{font-size:20px; line-height:1.45; margin-bottom:12px;}
  .note-card p{font-size:15px; line-height:1.85; color:var(--c-body); margin:0 0 18px;}
  .check-list{display:flex; flex-direction:column; gap:10px;}
  .check-list li{position:relative; padding-left:26px; font-size:14.5px; line-height:1.75; color:var(--c-body);}
  .check-list li::before{
    content:"✓"; position:absolute; left:0; top:0; color:var(--c-primary); font-weight:700;
  }

  /* ============ 流程步骤 ============ */
  .steps{display:grid; gap:20px;}
  @media (min-width:768px){ .steps{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .steps{grid-template-columns:repeat(4,1fr);} }
  .step{
    background:#fff; border:1px solid var(--c-line); border-radius:var(--r-card);
    padding:24px 22px 26px; box-shadow:var(--shadow-xs);
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .step:hover{transform:translateY(-3px); box-shadow:var(--shadow-card); border-color:rgba(14,123,224,.35);}
  .step-num{
    display:inline-flex; align-items:center; justify-content:center;
    width:34px; height:34px; border-radius:10px; margin-bottom:14px;
    background:var(--c-primary-050); color:var(--c-primary);
    font-size:14px; font-weight:700; font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:17px; line-height:1.5; margin-bottom:8px;}
  .step p{margin:0; font-size:14px; line-height:1.8; color:var(--c-muted);}

  /* ============ FAQ ============ */
  .faq-grid{display:grid; gap:28px;}
  @media (min-width:1024px){ .faq-grid{grid-template-columns:4fr 8fr; gap:56px;} }
  .faq-aside p{font-size:15px; line-height:1.85; color:var(--c-muted); margin-bottom:16px;}
  .faq-item{
    background:#fff; border:1px solid var(--c-line); border-radius:14px;
    margin-bottom:12px; overflow:hidden;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .faq-item:hover{border-color:rgba(14,123,224,.32);}
  .faq-item.open{box-shadow:var(--shadow-card); border-color:rgba(14,123,224,.32);}
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
    min-height:56px; padding:14px 20px; background:transparent; border:0;
    font-size:16px; font-weight:600; color:var(--c-ink); text-align:left; cursor:pointer;
    transition:background .18s ease;
  }
  .faq-q:hover{background:#FAFCFF;}
  .faq-icon{
    flex:0 0 20px; width:20px; height:20px; position:relative;
    transition:transform .25s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; background:var(--c-primary); border-radius:2px;
  }
  .faq-icon::before{left:0; top:9px; width:20px; height:2px;}
  .faq-icon::after{... }
  .faq-icon::after{left:9px; top:0; width:2px; height:20px;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease;}
  .faq-item.open .faq-a{max-height:320px;}
  .faq-a-inner{
    padding:16px 20px 20px; border-top:1px solid var(--c-line);
    background:#FAFCFF; font-size:15px; line-height:1.85; color:var(--c-body);
  }
  .faq-a-inner p{margin:0;}
  .screen-reader-only{position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap;}

  /* ============ 相关阅读 ============ */
  .read-grid{display:grid; gap:24px;}
  @media (min-width:768px){ .read-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .read-grid{grid-template-columns:repeat(3,1fr);} }
  #app .read-card{
    display:flex; flex-direction:column; background:#fff; border:1px solid var(--c-line);
    border-radius:var(--r-card); overflow:hidden; text-decoration:none; color:inherit;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  #app .read-card:hover{transform:translateY(-3px); box-shadow:var(--shadow-hover); border-color:rgba(14,123,224,.35); text-decoration:none; color:inherit;}
  .read-thumb{aspect-ratio:16/10; overflow:hidden;}
  .read-thumb img{width:100%; height:100%; object-fit:cover; transition:transform .4s ease;}
  #app .read-card:hover .read-thumb img{transform:scale(1.03);}
  .read-body{padding:20px 22px 22px; display:flex; flex-direction:column; gap:10px; flex:1;}
  .read-body h3{font-size:17px; font-weight:600; line-height:1.5;}
  .read-body p{margin:0; font-size:14px; line-height:1.7; color:var(--c-muted);}
  .read-meta{
    margin-top:auto; display:flex; align-items:center; justify-content:space-between;
    font-size:13px; color:var(--c-muted);
  }
  .read-arrow{color:var(--c-primary); font-weight:700; transition:transform .2s ease;}
  #app .read-card:hover .read-arrow{transform:translateX(4px);}

  /* ============ CTA 带 ============ */
  .cta-band{
    background:linear-gradient(135deg,#0E7BE0 0%,#0A66BF 100%);
    border-radius:var(--r-band); padding:32px 24px; color:#fff;
    display:grid; gap:28px; box-shadow:0 24px 48px -32px rgba(10,102,191,.65);
  }
  @media (min-width:768px){ .cta-band{padding:40px;} }
  @media (min-width:1024px){ .cta-band{grid-template-columns:1fr 1fr; align-items:center; gap:48px; padding:48px;} }
  .cta-band h2{color:#fff; font-size:clamp(22px,2.4vw,30px); line-height:1.32; margin-bottom:12px;}
  .cta-band p{color:rgba(255,255,255,.86); font-size:15px; line-height:1.85; margin:0 0 18px;}
  .cta-points{display:flex; flex-direction:column; gap:8px; font-size:14px; color:rgba(255,255,255,.92);}
  .cta-points li{position:relative; padding-left:22px;}
  .cta-points li::before{content:"✓"; position:absolute; left:0; color:#FFD9BC; font-weight:700;}
  .cta-form-card{background:#fff; border-radius:var(--r-card); padding:24px; box-shadow:0 30px 60px -40px rgba(4,16,34,.75);}
  @media (min-width:768px){ .cta-form-card{padding:28px;} }
  .cta-form{display:grid; gap:16px;}
  .form-row{display:grid; gap:16px;}
  @media (min-width:520px){ .form-row{grid-template-columns:repeat(2,1fr);} }
  .field label{display:block; font-size:14px; font-weight:600; color:var(--c-ink); margin-bottom:8px;}
  .field input,.field select{
    width:100%; height:48px; padding:0 14px; border-radius:var(--r-btn);
    border:1px solid var(--c-line-strong); background:#fff; color:var(--c-ink);
    font-size:15px; appearance:none; transition:border-color .18s ease, box-shadow .18s ease;
  }
  .field input::placeholder{color:#9AA7B8;}
  .field input:focus,.field select:focus{outline:none; border-color:var(--c-primary); box-shadow:var(--shadow-focus);}
  .field select{
    background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B7A90' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-position:right 14px center; padding-right:40px;
  }
  .form-tip{font-size:13px; line-height:1.7; color:var(--c-ok); min-height:20px; margin:0; opacity:0; transition:opacity .2s ease;}
  .form-tip.show{opacity:1;}
  .form-note{font-size:12.5px; line-height:1.7; color:var(--c-muted); margin:0;}

  /* ============ 页脚 ============ */
  .site-footer{background:#0F1B2D; color:#A9B6C9; padding:64px 0 32px;}
  .site-footer p{margin:0 0 14px; font-size:14px; line-height:1.8; color:#A9B6C9;}
  .footer-grid{display:grid; gap:36px;}
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:48px;} }
  .footer-brand{display:flex; align-items:center; gap:10px; margin-bottom:16px;}
  .footer-brand-text{color:#fff; font-size:15px; font-weight:700;}
  .footer-contact{display:flex; flex-direction:column; gap:6px; font-size:13.5px; color:#93A2B8;}
  .footer-title{color:#fff; font-size:14px; font-weight:600; margin:0 0 16px;}
  .footer-list{display:flex; flex-direction:column; gap:10px;}
  #app .footer-list a{color:#A9B6C9; font-size:14px; text-decoration:none; transition:color .18s ease, transform .18s ease;}
  #app .footer-list a:hover{color:#4EA3F5; transform:translateX(2px); text-decoration:none;}
  .footer-bottom{
    margin-top:48px; padding-top:24px; border-top:1px solid rgba(255,255,255,.08);
    display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between;
    font-size:13px; color:#8896AC;
  }

/* roulang page: category2 */
:root{
    --c-primary:#0E7BE0; --c-primary-600:#0A66BF; --c-primary-050:#EAF3FF;
    --c-accent:#F97316; --c-accent-600:#EA6A0A;
    --c-ok:#10B981; --c-warn:#F59E0B; --c-danger:#D93A3A;
    --c-ink:#0E1A2B; --c-body:#33415C; --c-muted:#6B7A90;
    --c-line:#E6EBF2; --c-line-strong:#D6E2F2;
    --c-bg:#F7FAFE; --c-surface:#FFFFFF; --c-bg-alt:#F0F6FF;
    --r-card:16px; --r-big:20px; --r-img:12px; --r-btn:10px;
    --shadow-xs:0 1px 2px rgba(14,26,43,.05);
    --shadow-card:0 2px 4px rgba(14,26,43,.04), 0 12px 28px -16px rgba(14,26,43,.18);
    --shadow-hover:0 4px 8px rgba(14,26,43,.06), 0 20px 40px -18px rgba(14,26,43,.24);
    --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;background:var(--c-bg);color:var(--c-body);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
  a:hover{color:var(--c-primary-600);text-decoration:underline}
  button,input,select{font:inherit;color:inherit}
  button{cursor:pointer;border:0;background:none}
  h1,h2,h3,p,ul,ol{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:none;box-shadow:var(--shadow-focus);border-radius:8px}
  .num{font-variant-numeric:tabular-nums}

  .container{max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:640px){.container{padding:0 28px}}
  @media (min-width:1024px){.container{padding:0 32px}}

  /* ---------- 骨架 ---------- */
  .app-shell{display:flex;min-height:100vh;align-items:flex-start}
  .main-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}
  main{flex:1 1 auto}

  /* ---------- 左侧导航 ---------- */
  .side-nav{
    width:248px;flex:0 0 248px;position:sticky;top:0;height:100vh;
    background:var(--c-surface);border-right:1px solid var(--c-line);
    display:flex;flex-direction:column;padding:22px 18px 18px;gap:6px;overflow-y:auto;
  }
  .side-brand{display:flex;align-items:center;gap:12px;padding:6px 6px 20px;border-bottom:1px solid var(--c-line)}
  .brand-mark{
    width:40px;height:40px;border-radius:12px;flex:0 0 40px;
    background:linear-gradient(140deg,#0E7BE0,#0A66BF);color:#fff;
    display:flex;align-items:center;justify-content:center;
  }
  .brand-mark svg{width:22px;height:22px}
  .brand-text{font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.35;max-width:140px}
  .nav-list{display:flex;flex-direction:column;gap:4px;margin-top:18px}
  .nav-group-label{
    font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted);
    padding:16px 14px 6px;
  }
  .nav-item{
    display:flex;align-items:center;height:44px;padding:0 14px;border-radius:10px;
    font-size:15px;color:var(--c-body);position:relative;transition:background .2s ease,color .2s ease;
  }
  .nav-item:hover{background:#F2F7FD;color:var(--c-primary);text-decoration:none}
  .nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--c-primary);
  }
  .side-cta{
    margin-top:auto;background:var(--c-bg-alt);border-radius:14px;padding:16px;border:1px solid var(--c-line);
  }
  .side-cta p{font-size:13px;line-height:1.7;color:var(--c-body);margin-bottom:12px}

  /* ---------- 移动顶栏 ---------- */
  .mobile-header{
    display:none;position:sticky;top:0;z-index:60;height:64px;
    background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);
    align-items:center;justify-content:space-between;padding:0 18px;
    transition:box-shadow .25s ease,background .25s ease;
  }
  .mobile-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(14,26,43,.35);background:rgba(255,255,255,.92);backdrop-filter:blur(8px)}
  .mobile-brand{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--c-ink)}
  .mobile-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px}
  .mobile-brand .brand-mark svg{width:18px;height:18px}
  .hamburger{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px}
  .hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink)}
  .hamburger:hover{background:#F2F7FD}

  .drawer-overlay{
    position:fixed;inset:0;background:rgba(14,26,43,.45);opacity:0;visibility:hidden;
    transition:opacity .24s ease,visibility .24s ease;z-index:70;
  }
  .drawer-overlay.is-open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:300px;max-width:100%;background:#fff;z-index:80;
    transform:translateX(100%);transition:transform .24s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;padding:22px 18px;overflow-y:auto;
    box-shadow:-16px 0 40px -24px rgba(14,26,43,.4);
  }
  .drawer.is-open{transform:translateX(0)}
  @media (max-width:479px){.drawer{width:100%}}
  .drawer-close{align-self:flex-end;width:40px;height:40px;border-radius:10px;color:var(--c-muted);font-size:22px;line-height:1}
  .drawer-close:hover{background:#F2F7FD}
  .drawer .nav-list{margin-top:12px}
  .drawer .nav-item{height:48px;justify-content:space-between}
  .drawer .nav-item::after{content:"›";color:var(--c-muted);font-size:18px}

  @media (min-width:1024px){
    .mobile-header{display:none}
    .drawer,.drawer-overlay{display:none !important}
  }
  @media (max-width:1023px){
    .side-nav{display:none}
    .mobile-header{display:flex}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
    border:1px solid transparent;text-decoration:none;
  }
  .btn:hover{text-decoration:none;transform:translateY(-1px)}
  .btn:active{transform:translateY(0);box-shadow:none}
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-xs)}
  .btn-primary:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--shadow-card)}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--shadow-xs)}
  .btn-accent:hover{background:var(--c-accent-600);color:#fff;box-shadow:var(--shadow-card)}
  .btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong)}
  .btn-ghost:hover{background:var(--c-bg-alt);color:var(--c-primary-600)}
  .btn-lg{height:48px;padding:0 26px}
  .btn-block{width:100%}
  .btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
  .link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
  .link-more::after{content:"→";transition:transform .2s ease}
  .link-more:hover::after{transform:translateX(4px)}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
  }
  .badge-cat{background:var(--c-primary-050);color:var(--c-primary)}
  .badge-ok{background:#E7F8F1;color:#0B7B57}
  .badge-warn{background:#FEF3E2;color:#A9600A}
  .badge-off{background:#EEF1F5;color:#66748A}
  .badge-live{background:#EAF3FF;color:#0A66BF}

  /* ---------- 面包屑 / 页头 ---------- */
  .page-head{padding:40px 0 8px}
  .breadcrumb{font-size:14px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .breadcrumb a{color:var(--c-muted)}
  .breadcrumb a:hover{color:var(--c-primary)}
  .breadcrumb .sep{color:#B8C3D4}
  .breadcrumb .current{color:var(--c-body)}
  h1{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.2;letter-spacing:-.01em;color:var(--c-ink);margin-top:16px}
  .page-lead{font-size:17px;color:var(--c-body);margin-top:14px;max-width:720px}
  .filter-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
  .tag{
    display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
    border:1px solid var(--c-line-strong);background:#fff;font-size:14px;color:var(--c-body);
    transition:all .2s ease;
  }
  .tag:hover{border-color:rgba(14,123,224,.45);color:var(--c-primary);text-decoration:none}
  .tag.is-active{background:var(--c-primary-050);border-color:rgba(14,123,224,.45);color:var(--c-primary);font-weight:600}

  /* ---------- 板块 ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:80px 0}}
  .section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
  .eyebrow{font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--c-primary);text-transform:uppercase}
  h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--c-ink);margin-top:10px}
  .section-sub{margin-top:12px;font-size:15px;color:var(--c-muted);max-width:680px}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

  /* ---------- 概览条 ---------- */
  .overview{
    display:grid;grid-template-columns:repeat(4,1fr);
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    overflow:hidden;
  }
  .overview-item{padding:20px 24px}
  .overview-item + .overview-item{border-left:1px solid var(--c-line)}
  .overview-value{font-size:18px;font-weight:700;color:var(--c-ink);line-height:1.4}
  .overview-label{font-size:12px;letter-spacing:.06em;color:var(--c-muted);margin-top:6px}
  @media (max-width:900px){
    .overview{grid-template-columns:repeat(2,1fr)}
    .overview-item:nth-child(3){border-left:0;border-top:1px solid var(--c-line)}
    .overview-item:nth-child(4){border-top:1px solid var(--c-line)}
  }
  @media (max-width:520px){
    .overview{grid-template-columns:1fr}
    .overview-item + .overview-item{border-left:0;border-top:1px solid var(--c-line)}
    .overview-item:nth-child(2),.overview-item:nth-child(3),.overview-item:nth-child(4){border-left:0}
  }

  /* ---------- 时间线 ---------- */
  .tl-group{margin-top:34px}
  .tl-date{
    font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--c-muted);
    padding-bottom:10px;border-bottom:1px solid var(--c-line);
  }
  .tl-date strong{color:var(--c-ink);font-weight:700;letter-spacing:.06em}
  .tl-list{position:relative;padding-left:28px;margin-top:16px}
  .tl-list::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--c-line)}
  .tl-item{position:relative;padding-bottom:14px}
  .tl-node{
    position:absolute;left:-28px;top:18px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:2px solid var(--c-primary);box-sizing:border-box;
  }
  .tl-node.is-accent{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(249,115,22,.14)}
  .tl-card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:16px 20px;box-shadow:var(--shadow-xs);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
  .tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px}
  .tl-no{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-primary)}
  .tl-time{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}
  .tl-card h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--c-ink)}
  .tl-meta{font-size:13px;color:var(--c-muted);margin-top:6px}
  .tl-desc{font-size:14px;line-height:1.7;color:var(--c-body);margin-top:8px}
  .tl-foot{margin-top:12px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
  .tl-foot .seats{font-size:13px;color:var(--c-body);font-weight:600}
  .tl-more{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:14px;font-weight:600}
  @media (max-width:640px){
    .tl-list{padding-left:16px}
    .tl-list::before{left:0}
    .tl-node{left:-20px;top:16px}
    .tl-card{padding:14px 16px}
    .tl-card h3{font-size:16px}
  }

  /* ---------- 流程步骤 ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:32px}
  .step{position:relative;padding-top:22px;border-top:2px solid var(--c-line)}
  .step::before{
    content:"";position:absolute;top:-5px;left:0;width:8px;height:8px;border-radius:50%;background:var(--c-primary);
  }
  .step-no{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary)}
  .step h3{font-size:17px;font-weight:600;color:var(--c-ink);margin-top:8px}
  .step p{font-size:14px;line-height:1.75;color:var(--c-body);margin-top:8px}
  @media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:520px){.steps{grid-template-columns:1fr}}

  /* ---------- 说明双卡 ---------- */
  .duo{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:32px}
  .card{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35)}
  .card h3{font-size:19px;font-weight:600;color:var(--c-ink)}
  .card p{font-size:14px;line-height:1.8;color:var(--c-body);margin-top:10px}
  .card ul{margin-top:12px;display:flex;flex-direction:column;gap:8px}
  .card ul li{position:relative;padding-left:22px;font-size:14px;line-height:1.7;color:var(--c-body)}
  .card ul li::before{
    content:"";position:absolute;left:4px;top:9px;width:6px;height:10px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(40deg);
  }
  @media (max-width:768px){.duo{grid-template-columns:1fr}}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:40px;margin-top:32px}
  .faq-list{border-top:1px solid var(--c-line)}
  .faq-item{border-bottom:1px solid var(--c-line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
    min-height:56px;padding:16px 4px;font-size:16px;font-weight:600;color:var(--c-ink);
    transition:color .2s ease;
  }
  .faq-q:hover{color:var(--c-primary)}
  .faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;transition:transform .24s ease}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
  .faq-icon::before{left:0;top:9px;width:20px;height:2px}
  .faq-icon::after{left:9px;top:0;width:2px;height:20px}
  .faq-item.is-open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
  .faq-a-inner{padding:2px 4px 20px;font-size:15px;line-height:1.85;color:var(--c-body);border-top:1px solid transparent}
  .faq-item.is-open .faq-a-inner{background:#FAFCFF}
  @media (max-width:768px){.faq-wrap{grid-template-columns:1fr;gap:20px}}

  /* ---------- 相关阅读 ---------- */
  .read-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
  .read-card{
    display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .read-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,123,224,.35);text-decoration:none}
  .read-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-alt)}
  .read-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
  .read-card:hover .read-thumb img{transform:scale(1.03)}
  .read-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
  .read-card h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .read-card .excerpt{font-size:14px;line-height:1.7;color:var(--c-body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .read-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);padding-top:6px}
  .read-foot .arrow{color:var(--c-primary);font-weight:700;transition:transform .2s ease}
  .read-card:hover .read-foot .arrow{transform:translateX(4px)}
  @media (max-width:1023px){.read-grid{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:768px){.read-grid{grid-template-columns:1fr}}

  /* ---------- 表单 ---------- */
  .field{display:flex;flex-direction:column;gap:8px}
  .field label{font-size:14px;font-weight:600;color:var(--c-ink)}
  .field input,.field select{
    height:48px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--c-line-strong);
    background:#fff;font-size:15px;color:var(--c-body);width:100%;
    transition:border-color .2s ease,box-shadow .2s ease;
    appearance:none;-webkit-appearance:none;
  }
  .field select{
    background-image:linear-gradient(45deg,transparent 50%,#6B7A90 50%),linear-gradient(135deg,#6B7A90 50%,transparent 50%);
    background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
    background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px;
  }
  .field input::placeholder{color:#9AA7B8}
  .field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:var(--shadow-focus);outline:none}
  .field.has-error input{border-color:var(--c-danger)}
  .field .err{font-size:13px;color:var(--c-danger);display:none}
  .field.has-error .err{display:block}

  .cta-band{
    background:linear-gradient(135deg,#0E7BE0 0%,#0A66BF 100%);
    border-radius:var(--r-big);padding:40px;color:#fff;
    display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;
    box-shadow:var(--shadow-card);
  }
  .cta-band h2{color:#fff;margin-top:0}
  .cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);margin-top:12px}
  .cta-form{background:#fff;border-radius:var(--r-card);padding:24px}
  .cta-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  .cta-grid .full{grid-column:1/-1}
  @media (max-width:1023px){
    .cta-band{grid-template-columns:1fr;padding:28px;gap:24px}
  }
  @media (max-width:520px){
    .cta-grid{grid-template-columns:1fr}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:#0F1B2D;color:#A9B6C9;margin-top:0;padding:64px 0 32px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
  .footer-brand .brand-mark{background:linear-gradient(140deg,#0E7BE0,#0A66BF)}
  .footer-brand-text{font-size:15px;font-weight:700;color:#fff}
  .site-footer p{font-size:14px;line-height:1.8;color:#A9B6C9}
  .footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:14px;color:#A9B6C9}
  .footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
  .footer-list{display:flex;flex-direction:column;gap:10px}
  .footer-list a{color:#A9B6C9;font-size:14px;transition:color .2s ease,transform .2s ease;display:inline-block}
  .footer-list a:hover{color:#4EA3F5;transform:translateX(-2px);text-decoration:none}
  .footer-bottom{
    margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8A99AE;
  }
  @media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:32px}.site-footer{padding:48px 0 24px}}

/* roulang page: category4 */
:root{
  --c-primary:#0E7BE0; --c-primary-600:#0A66BF; --c-primary-050:#EAF3FF;
  --c-accent:#F97316; --c-accent-600:#EA6A0A;
  --c-ok:#10B981; --c-warn:#F59E0B; --c-danger:#D93A3A;
  --c-ink:#0E1A2B; --c-body:#33415C; --c-muted:#6B7A90;
  --c-line:#E6EBF2; --c-line-strong:#D6E2F2;
  --c-bg:#F7FAFE; --c-surface:#FFFFFF; --c-bg-alt:#F0F6FF;
  --r-card:16px; --r-panel:20px; --r-img:12px; --r-btn:10px;
  --shadow-xs:0 1px 2px rgba(14,26,43,.05);
  --shadow-card:0 2px 4px rgba(14,26,43,.04), 0 12px 28px -16px rgba(14,26,43,.18);
  --shadow-hover:0 4px 8px rgba(14,26,43,.06), 0 20px 40px -18px rgba(14,26,43,.24);
  --shadow-focus:0 0 0 3px rgba(14,123,224,.28);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
.site-body{
  margin:0; background:var(--c-bg); color:var(--c-body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px; line-height:1.8; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
@media (min-width:1280px){ .site-body{font-size:17px;} }
img{max-width:100%; display:block;}
a{color:var(--c-primary); text-decoration:none; transition:color .2s ease;}
a:hover{color:var(--c-primary-600);}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-primary);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:99;}
.skip-link:focus{left:0;}

/* 布局骨架 */
.layout{display:flex; align-items:flex-start; min-height:100vh;}
.sidebar{
  flex:0 0 var(--sidebar-w); width:var(--sidebar-w); position:sticky; top:0; height:100vh;
  background:var(--c-surface); border-right:1px solid var(--c-line);
  display:flex; flex-direction:column; padding-bottom:20px; z-index:30;
}
.main-col{width:calc(100% - var(--sidebar-w)); min-width:0; display:flex; flex-direction:column; min-height:100vh;}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 20px;}
@media (min-width:640px){ .container{padding:0 28px;} }
@media (min-width:1024px){ .container{padding:0 32px;} }

/* 品牌与侧栏导航 */
.sidebar-brand{display:flex; align-items:center; gap:12px; padding:24px 20px 18px; min-height:88px;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow-xs);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.35;letter-spacing:.01em;}
.nav-list{display:flex; flex-direction:column; gap:4px; padding:0 16px; margin:0;}
.nav-group-label{
  display:block; font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--c-muted);
  padding:18px 14px 6px;
}
.nav-item{
  display:flex; align-items:center; height:44px; padding:0 14px; border-radius:10px;
  color:var(--c-body); font-size:15px; position:relative; transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:#F2F7FD; color:var(--c-primary-600);}
.nav-item.active{background:var(--c-primary-050); color:var(--c-primary); font-weight:600;}
.nav-item.active::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:3px; height:20px; border-radius:2px; background:var(--c-primary);
}
.nav-item:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
.sidebar-card{
  margin:20px 16px 0; padding:18px; border-radius:14px; background:var(--c-bg-alt);
  border:1px solid var(--c-line);
}
.sidebar-card p{margin:0 0 14px; font-size:13px; line-height:1.7; color:var(--c-body);}
.sidebar-spacer{flex:1 1 auto;}

/* 移动顶栏与抽屉 */
.mobile-header{
  display:none; position:sticky; top:0; z-index:40; height:64px; align-items:center; justify-content:space-between;
  padding:0 16px; background:#fff; border-bottom:1px solid var(--c-line); transition:box-shadow .25s ease, background .25s ease;
}
.mobile-header.scrolled{box-shadow:0 6px 18px -12px rgba(14,26,43,.35); background:rgba(255,255,255,.92); backdrop-filter:blur(8px);}
.mobile-brand{display:flex; align-items:center; gap:10px; font-size:15px; font-weight:700; color:var(--c-ink);}
.mobile-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;}
.mobile-brand .brand-mark svg{width:19px;height:19px;}
.hamburger{
  width:44px;height:44px;border:1px solid var(--c-line-strong);border-radius:10px;background:#fff;
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;transition:background .2s ease;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);}
.hamburger:hover{background:var(--c-bg-alt);}
.hamburger:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
.drawer-overlay{
  position:fixed; inset:0; background:rgba(14,26,43,.45); opacity:0; pointer-events:none;
  transition:opacity .24s ease; z-index:50;
}
.drawer-overlay.open{opacity:1; pointer-events:auto;}
.drawer{
  position:fixed; top:0; right:0; height:100%; width:300px; max-width:100%; background:#fff; z-index:60;
  transform:translateX(100%); transition:transform .24s cubic-bezier(.4,0,.2,1);
  display:flex; flex-direction:column; padding-bottom:20px; overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex; align-items:center; justify-content:space-between; padding:18px 16px 10px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line-strong);background:#fff;
  font-size:20px;line-height:1;color:var(--c-body);cursor:pointer;
}
.drawer-close:hover{background:var(--c-bg-alt);}
.drawer-close:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main-col{width:100%;}
  .mobile-header{display:flex;}
}
@media (max-width:479px){ .drawer{width:100%;} }

/* 通用板块与标题 */
.section{padding:56px 0;}
@media (min-width:1024px){ .section{padding:80px 0;} }
.section-head{margin-bottom:32px; max-width:760px;}
.section-kicker{
  display:block; font-size:12px; font-weight:600; letter-spacing:.08em; color:var(--c-primary);
  margin-bottom:10px;
}
.section-title{
  margin:0 0 12px; font-size:clamp(24px,2.6vw,32px); font-weight:700; line-height:1.3; color:var(--c-ink);
}
.section-sub{margin:0; font-size:15px; line-height:1.8; color:var(--c-muted);}

/* 按钮体系 */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; height:44px; padding:0 22px;
  border-radius:var(--r-btn); font-size:15px; font-weight:600; border:1px solid transparent; cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  text-decoration:none; white-space:nowrap;
}
.btn:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
.btn-primary{background:var(--c-primary); color:#fff; box-shadow:var(--shadow-xs);}
.btn-primary:hover{background:var(--c-primary-600); color:#fff; transform:translateY(-1px); box-shadow:var(--shadow-card);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent); color:#fff; box-shadow:var(--shadow-xs);}
.btn-accent:hover{background:var(--c-accent-600); color:#fff; transform:translateY(-1px); box-shadow:var(--shadow-card);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:#fff; color:var(--c-primary); border-color:var(--c-line-strong);}
.btn-ghost:hover{background:var(--c-bg-alt); color:var(--c-primary-600); transform:translateY(-1px);}
.btn-block{width:100%;}
.btn-cta{height:48px; padding:0 26px;}
.btn[disabled],.btn.is-disabled{opacity:.4; cursor:not-allowed; transform:none; box-shadow:none;}
.link-arrow{display:inline-flex; align-items:center; gap:6px; font-size:15px; font-weight:600;}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* 面包屑与 Hero */
.page-hero{
  position:relative; overflow:hidden; border-bottom:1px solid var(--c-line);
  background:linear-gradient(180deg,#FFFFFF 0%, #EFF5FF 100%);
  padding:40px 0 44px;
}
.page-hero::after{
  content:""; position:absolute; right:-70px; top:-90px; width:260px; height:260px; border-radius:52px;
  background:rgba(14,123,224,.07); transform:rotate(18deg);
}
.breadcrumb{position:relative; display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:14px; color:var(--c-muted); margin-bottom:20px;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#B8C4D4;}
.breadcrumb .current{color:var(--c-body); font-weight:600;}
.page-title{
  position:relative; margin:0 0 14px; font-size:clamp(30px,4vw,44px); font-weight:700; line-height:1.2;
  letter-spacing:-.01em; color:var(--c-ink);
}
.page-lead{position:relative; margin:0 0 26px; font-size:16px; line-height:1.8; color:var(--c-body); max-width:620px;}
.chip-row{position:relative; display:flex; flex-wrap:wrap; gap:8px 22px;}
.chip{
  position:relative; padding:6px 0; font-size:14px; font-weight:600; color:var(--c-muted);
  border-bottom:2px solid transparent; transition:color .2s ease, border-color .2s ease;
}
.chip:hover{color:var(--c-primary);}
.chip.active{color:var(--c-primary); border-color:var(--c-primary);}
.chip:focus-visible{outline:none; box-shadow:var(--shadow-focus); border-radius:6px;}

/* 搜索区 */
.search-band{padding:40px 0 0;}
.search-panel{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-panel);
  box-shadow:var(--shadow-card); padding:28px 24px;
}
@media (min-width:1024px){ .search-panel{padding:32px 36px;} }
.search-panel h2{margin:0 0 8px; font-size:20px; font-weight:700; color:var(--c-ink);}
.search-panel .search-tip{margin:0 0 18px; font-size:14px; color:var(--c-muted);}
.search-box{position:relative; max-width:640px;}
.search-box svg{position:absolute; left:16px; top:50%; transform:translateY(-50%); width:18px; height:18px; color:var(--c-muted);}
.search-input{
  width:100%; height:52px; padding:0 16px 0 46px; border-radius:var(--r-btn);
  border:1px solid var(--c-line-strong); background:#fff; color:var(--c-ink); font-size:15px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.search-input::placeholder{color:#9AA7B8;}
.search-input:focus{outline:none; border-color:var(--c-primary); box-shadow:var(--shadow-focus);}
.search-result{margin:14px 0 0; font-size:13px; color:var(--c-muted); min-height:20px;}

/* FAQ 布局 */
.faq-layout{display:grid; grid-template-columns:240px minmax(0,1fr); gap:44px; align-items:start;}
.faq-toc{
  position:sticky; top:32px; background:var(--c-surface); border:1px solid var(--c-line);
  border-radius:var(--r-card); box-shadow:var(--shadow-card); padding:18px;
}
.faq-toc h3{margin:0 0 10px; font-size:13px; font-weight:600; letter-spacing:.06em; color:var(--c-muted);}
.toc-list{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:2px;}
.toc-list a{
  display:block; padding:9px 10px; border-radius:10px; font-size:14px; color:var(--c-body);
  transition:background .2s ease,color .2s ease;
}
.toc-list a:hover{background:#F2F7FD; color:var(--c-primary-600);}
.toc-list a:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
.toc-note{margin:14px 0 0; padding-top:14px; border-top:1px solid var(--c-line); font-size:13px; line-height:1.7; color:var(--c-muted);}
.faq-groups{display:flex; flex-direction:column; gap:36px; min-width:0;}
.faq-group-title{
  margin:0 0 12px; font-size:20px; font-weight:600; line-height:1.45; color:var(--c-ink);
  padding-left:12px; border-left:3px solid var(--c-primary);
}
.faq-list{background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-card); box-shadow:var(--shadow-card); overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%; min-height:56px; display:flex; align-items:center; gap:16px; padding:16px 22px;
  background:transparent; border:0; text-align:left; cursor:pointer; font-size:16px; font-weight:600;
  color:var(--c-ink); line-height:1.6; transition:background .2s ease;
}
.faq-q:hover{background:#FAFCFF;}
.faq-q:focus-visible{outline:none; box-shadow:var(--shadow-focus);}
.faq-icon{position:relative; width:20px; height:20px; flex:0 0 20px; margin-left:auto; transition:transform .25s ease;}
.faq-icon::before,.faq-icon::after{content:""; position:absolute; background:var(--c-primary); border-radius:2px;}
.faq-icon::before{left:9px; top:2px; width:2px; height:16px;}
.faq-icon::after{left:2px; top:9px; width:16px; height:2px;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease; background:#FAFCFF; border-top:1px solid transparent;}
.faq-item.open .faq-a{border-top-color:var(--c-line);}
.faq-a p{margin:0; padding:16px 22px 20px; font-size:15px; line-height:1.85; color:var(--c-body);}
.faq-a strong{color:var(--c-ink);}

/* 联系卡 */
.contact-card{
  display:flex; flex-wrap:wrap; align-items:center; gap:20px; justify-content:space-between;
  background:var(--c-bg-alt); border:1px solid var(--c-line-strong); border-radius:var(--r-panel);
  padding:26px 28px;
}
.contact-left{display:flex; align-items:center; gap:16px; min-width:0;}
.contact-icon{
  width:48px; height:48px; flex:0 0 48px; border-radius:14px; background:#fff; color:var(--c-primary);
  display:inline-flex; align-items:center; justify-content:center; border:1px solid var(--c-line);
}
.contact-icon svg{width:24px; height:24px;}
.contact-left p{margin:0; font-size:15px; line-height:1.7; color:var(--c-body);}
.contact-left strong{color:var(--c-ink);}

/* 相关阅读 */
.card-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px;}
@media (max-width:1023px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (max-width:767px){ .card-grid{grid-template-columns:1fr;} }
.info-card{
  display:flex; flex-direction:column; background:var(--c-surface); border:1px solid var(--c-line);
  border-radius:var(--r-card); box-shadow:var(--shadow-card); overflow:hidden;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.info-card:hover{transform:translateY(-3px); box-shadow:var(--shadow-hover); border-color:rgba(14,123,224,.35);}
.card-media{position:relative; aspect-ratio:16/10; overflow:hidden; background:var(--c-bg-alt);}
.card-media img{width:100%; height:100%; object-fit:cover; transition:transform .3s ease;}
.info-card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px; display:flex; flex-direction:column; gap:10px; flex:1;}
.badge{
  display:inline-flex; align-items:center; height:24px; padding:0 10px; border-radius:999px;
  font-size:12px; font-weight:600; background:var(--c-primary-050); color:var(--c-primary-600); width:fit-content;
}
.badge-ok{background:rgba(16,185,129,.12); color:#0B8A61;}
.card-title{margin:0; font-size:17px; font-weight:600; line-height:1.55; color:var(--c-ink);}
.card-text{margin:0; font-size:14px; line-height:1.7; color:var(--c-muted);}
.card-foot{margin-top:auto; padding-top:12px; display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--c-muted);}
.card-foot svg{width:16px; height:16px; transition:transform .2s ease;}
.info-card:hover .card-foot svg{transform:translateX(4px);}

/* CTA 报名带 */
.cta-band{
  background:var(--c-primary); border-radius:var(--r-panel); color:#fff; padding:32px 24px;
  box-shadow:0 24px 50px -30px rgba(14,123,224,.75);
}
@media (min-width:1024px){ .cta-band{padding:44px 48px;} }
.cta-grid{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.05fr); gap:32px; align-items:center;}
@media (max-width:1023px){ .cta-grid{grid-template-columns:1fr; gap:26px;} }
.cta-band h2{margin:0 0 10px; font-size:clamp(22px,2.4vw,28px); font-weight:700; line-height:1.35; color:#fff;}
.cta-band p{margin:0; font-size:15px; line-height:1.8; color:rgba(255,255,255,.86);}
.signup-form{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px 16px;}
.form-row{display:flex; flex-direction:column; gap:8px; min-width:0;}
.form-row label{font-size:14px; font-weight:600; color:#fff;}
.form-row input,.form-row select{
  width:100%; height:48px; padding:0 14px; border-radius:var(--r-btn); font-size:15px;
  border:1px solid rgba(255,255,255,.4); background:rgba(255,255,255,.96); color:var(--c-ink);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.form-row input::placeholder{color:#9AA7B8;}
.form-row input:focus,.form-row select:focus{outline:none; border-color:#fff; box-shadow:0 0 0 3px rgba(255,255,255,.35);}
.form-row select{appearance:none; background-image:linear-gradient(45deg,transparent 50%,#6B7A90 50%),linear-gradient(135deg,#6B7A90 50%,transparent 50%); background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px; background-size:5px 5px,5px 5px; background-repeat:no-repeat;}
.form-submit{grid-column:1 / -1; display:flex; flex-wrap:wrap; align-items:center; gap:14px;}
.form-submit .btn-accent{height:48px;}
.form-hint{margin:0; font-size:13px; color:rgba(255,255,255,.9);}
@media (max-width:639px){
  .signup-form{grid-template-columns:1fr;}
  .form-submit .btn{width:100%;}
}

/* 页脚 */
.site-footer{background:#0F1B2D; color:#A9B6C9; margin-top:auto; padding:64px 0 32px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:36px;}
@media (max-width:1023px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px;} }
@media (max-width:639px){ .footer-grid{grid-template-columns:1fr;} }
.footer-brand{display:flex; align-items:center; gap:12px; margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-brand-text{font-size:16px; font-weight:700; color:#fff;}
.site-footer p{margin:0 0 14px; font-size:14px; line-height:1.8; color:#A9B6C9;}
.footer-contact{display:flex; flex-direction:column; gap:6px; font-size:14px; color:#8E9DB4;}
.footer-title{margin:0 0 16px; font-size:14px; font-weight:600; color:#fff;}
.footer-list{display:flex; flex-direction:column; gap:10px;}
.footer-list a{font-size:14px; color:#A9B6C9; transition:color .2s ease, transform .2s ease;}
.footer-list a:hover{color:#4EA3F5; transform:translateX(-2px);}
.footer-bottom{
  margin-top:40px; padding-top:22px; border-top:1px solid rgba(255,255,255,.08);
  display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between; font-size:13px; color:#808FA6;
}

/* 通用卡片容器 */
.panel{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-card);
  box-shadow:var(--shadow-card); padding:24px;
}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:minmax(0,1fr); gap:28px;}
  .faq-toc{position:static;}
}
@media (max-width:639px){
  .page-hero{padding:32px 0 36px;}
  .page-title{font-size:28px;}
  .card-body{padding:18px;}
  .faq-q{padding:14px 18px; font-size:15px;}
  .faq-a p{padding:14px 18px 18px;}
  .contact-card{padding:22px 20px;}
}