/* roulang page: index */
:root{
  --primary:#1560D6;
  --primary-deep:#0E3A82;
  --primary-soft:#E8F0FE;
  --accent:#FF8A1F;
  --accent-soft:#FFF2E2;
  --success:#12A87B;
  --ink:#14203A;
  --body:#4A5670;
  --muted:#8A94AB;
  --line:#E4E9F2;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,60,130,.06);
  --shadow-2:0 10px 26px rgba(20,60,130,.12);
  --shadow-3:0 16px 40px rgba(20,60,130,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

/* ============ 布局骨架 ============ */
.layout{
  display:flex;
  gap:40px;
  max-width:1560px;
  margin:0 auto;
  padding:0 40px;
  align-items:flex-start;
}
.content{
  flex:1;
  min-width:0;
  max-width:1200px;
  padding:36px 0 0;
}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  flex:0 0 236px;
  width:236px;
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:28px 0 20px;
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 18px 24px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  flex:0 0 40px;
  width:40px;height:40px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;
  font-size:18px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:15px;color:var(--ink);font-weight:700;letter-spacing:.01em;}
.brand-text em{font-size:12px;color:var(--muted);font-style:normal;}
.nav-list{padding:18px 12px;display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--body);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease;}
.nav-item::before{
  content:'';
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%) scaleY(0);
  width:3px;height:20px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  transition:transform .2s ease;
}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);}
.nav-item:hover i{color:var(--primary);transform:translateX(2px);}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.nav-item.active i{color:var(--primary);}
.nav-item.active::before{transform:translateY(-50%) scaleY(1);}
.sidebar-foot{
  margin-top:auto;
  padding:18px 18px 0;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  line-height:1.7;
}
.sidebar-foot a{color:var(--primary);font-weight:600;font-size:13px;display:inline-flex;align-items:center;gap:6px;}
.sidebar-foot a:hover{gap:9px;}
.sidebar-foot .copy{margin-top:8px;font-size:11.5px;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobilebar{
  display:none;
  position:sticky;
  top:0;
  z-index:50;
  height:56px;
  align-items:center;
  gap:10px;
  padding:0 14px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.mb-btn{
  width:38px;height:38px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:.2s;
}
.mb-btn:hover{border-color:var(--primary);color:var(--primary);}
.mb-brand{
  flex:1;
  font-size:13px;
  font-weight:700;
  color:var(--ink);
  line-height:1.2;
  text-align:center;
  letter-spacing:.01em;
}
.overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(14,58,130,.35);
  z-index:55;
}
.overlay.show{display:block;}

/* ============ 通用组件 ============ */
.section{margin-bottom:96px;}
.section-head{margin-bottom:28px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  padding:5px 12px;
  border-radius:999px;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.eyebrow.accent{color:#B85B00;background:var(--accent-soft);}
h1{font-size:clamp(28px,3.1vw,40px);font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:.01em;}
h2{font-size:clamp(21px,2.1vw,26px);font-weight:600;line-height:1.4;color:var(--ink);letter-spacing:.01em;}
h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--ink);}
.lead{font-size:16.5px;color:var(--body);line-height:1.8;}
.muted{color:var(--muted);font-size:14px;}
.num{font-variant-numeric:tabular-nums;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  background:var(--primary-soft);
  color:var(--primary);
  line-height:1.6;
}
.pill.accent{background:var(--accent-soft);color:#B85B00;}
.pill.success{background:rgba(18,168,123,.12);color:#0B7A59;}
.pill.line{background:#fff;border:1px solid var(--line);color:var(--body);font-weight:500;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  line-height:1.4;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:9px 16px;font-size:13.5px;}
.btn-xs{padding:7px 12px;font-size:12.5px;border-radius:8px;}
.btn[disabled],.btn.disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.4);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(3px);}

.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
  overflow:hidden;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D6E1F4;}
.card-cover{position:relative;overflow:hidden;background:var(--primary-soft);aspect-ratio:16/9;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;}

/* ============ Hero ============ */
.hero-media{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--primary-soft);
  box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(21,96,214,.05),rgba(14,58,130,.16));
  pointer-events:none;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.trust{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:36px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink);font-weight:500;}
.trust-item i{
  width:30px;height:30px;flex:0 0 30px;
  border-radius:9px;
  background:var(--primary-soft);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px;}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,transform .3s ease;
}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.step-num{
  width:40px;height:40px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:700;
  font-size:16px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.step:not(:last-child)::after{
  content:'';
  position:absolute;
  right:-24px;top:44px;
  width:24px;height:2px;
  background:linear-gradient(90deg,var(--primary-soft),var(--line));
}
.step h3{margin-bottom:8px;font-size:17px;}
.step p{font-size:14.5px;line-height:1.75;color:var(--body);}

/* ============ 非对称卡组 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;margin-top:32px;}
.feature-big{grid-column:span 8;}
.feature-side{grid-column:span 4;display:grid;gap:24px;}
.feature-big .card-cover{aspect-ratio:21/9;}
.feature-side .card-cover{aspect-ratio:16/9;}
.feature-text{padding:22px;}
.feature-text h3{margin-bottom:10px;}
.feature-text p{font-size:14.5px;line-height:1.8;color:var(--body);}

/* ============ 横向滚动主题卡 ============ */
.hscroll{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:6px 4px 18px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.hscroll::-webkit-scrollbar{height:8px;}
.hscroll::-webkit-scrollbar-track{background:var(--line);border-radius:999px;}
.hscroll::-webkit-scrollbar-thumb{background:#C3D2EA;border-radius:999px;}
.topic-card{
  flex:0 0 292px;
  scroll-snap-align:start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,transform .3s ease;
}
.topic-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.topic-card .topic-body{padding:18px 20px 20px;}
.topic-card h3{font-size:16px;margin-bottom:6px;}
.topic-card p{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ============ 奖励卡 ============ */
.reward-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px;}
.reward-card .card-body{padding:20px 22px 22px;}
.reward-card h3{font-size:17px;margin-bottom:8px;}
.reward-card p{font-size:14px;line-height:1.75;color:var(--body);}
.reward-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  padding:6px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:#B85B00;
  font-size:12.5px;
  font-weight:600;
}

/* ============ 里程碑 ============ */
.milestone{
  margin-top:34px;
  padding:30px 28px 26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.ms-track{
  height:8px;
  border-radius:999px;
  background:var(--line);
  overflow:hidden;
}
.ms-track span{
  display:block;
  height:100%;
  width:66%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--success));
}
.ms-nodes{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:-16px;
}
.ms-node{position:relative;padding-top:0;}
.ms-node::before{
  content:'';
  display:block;
  width:18px;height:18px;
  border-radius:999px;
  background:#fff;
  border:3px solid var(--primary);
  margin-bottom:14px;
  position:relative;
  z-index:1;
}
.ms-node.done::before{background:var(--success);border-color:var(--success);}
.ms-node.doing::before{border-color:var(--accent);background:#fff;box-shadow:0 0 0 5px rgba(255,138,31,.16);}
.ms-node.wait::before{border-color:#C9D5E8;}
.ms-node h4{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.ms-node .val{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.ms-node .badge{
  display:inline-flex;
  margin-bottom:8px;
  padding:2px 9px;
  border-radius:999px;
  font-size:11.5px;
  font-weight:600;
}
.badge-done{background:rgba(18,168,123,.12);color:#0B7A59;}
.badge-doing{background:var(--accent-soft);color:#B85B00;}
.badge-wait{background:#EEF2F9;color:var(--muted);}

/* ============ 数据条 ============ */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:30px;
}
.stat{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,transform .3s ease;
}
.stat:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.stat b{display:block;font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat span{font-size:13.5px;color:var(--muted);}

/* ============ 搜索框 ============ */
.search-box{display:flex;gap:10px;}
.search-box input{
  height:44px;
  flex:1;
  min-width:0;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  font-size:14.5px;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--muted);}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(21,96,214,.14);}
.search-box input.error{border-color:#D64545;box-shadow:0 0 0 3px rgba(214,69,69,.12);}
.form-tip{font-size:13px;color:#D64545;margin-top:8px;display:none;}
.form-tip.show{display:block;}

/* ============ 文章列表卡 ============ */
.post-card{display:flex;flex-direction:column;height:100%;}
.post-card h3{
  font-size:16.5px;
  margin:10px 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--body);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:49px;
}
.post-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.post-meta time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:52px 24px;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.empty-state i{font-size:30px;color:#C3D2EA;margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px;}

/* ============ CTA 横幅 ============ */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:40px 42px;
  border-radius:20px;
  background:linear-gradient(120deg,var(--primary-deep),var(--primary));
  color:#fff;
  box-shadow:var(--shadow-2);
}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px;}
.cta-band .btn-primary{background:#fff;color:var(--primary-deep);}
.cta-band .btn-primary:hover{background:var(--primary-soft);color:var(--primary-deep);}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* ============ FAQ ============ */
.faq-list{margin-top:30px;display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  border-radius:12px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .3s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  flex:0 0 24px;
  width:24px;height:24px;
  border-radius:8px;
  background:var(--primary-soft);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  transition:transform .28s ease,background .28s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);background:var(--primary);color:#fff;}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--body);
}

/* ============ 页脚 ============ */
.footer{
  margin-top:20px;
  background:var(--primary-deep);
  color:rgba(255,255,255,.72);
}
.footer-inner{max-width:1400px;margin:0 auto;padding:56px 40px 0;}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:32px;
  padding-bottom:40px;
}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer a:hover{color:#fff;transform:translateX(2px);}
.footer .footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer .footer-brand span.mark{
  width:32px;height:32px;border-radius:10px;
  background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
}
.footer .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer .footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .layout{padding:0 28px;gap:32px;}
  .reward-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .mobilebar{display:flex;}
  .layout{display:block;padding:0 20px;}
  .content{max-width:none;padding-top:28px;}
  .sidebar{
    position:fixed;
    left:0;top:0;
    height:100%;
    width:270px;
    flex:none;
    background:#fff;
    z-index:60;
    transform:translateX(-100%);
    transition:transform .3s ease;
    box-shadow:var(--shadow-3);
    border-right:1px solid var(--line);
  }
  .sidebar.open{transform:translateX(0);}
  .section{margin-bottom:56px;}
  .steps{grid-template-columns:1fr;}
  .step:not(:last-child)::after{display:none;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-big,.feature-side{grid-column:span 1;}
  .feature-big .card-cover{aspect-ratio:16/9;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-inner{padding:44px 20px 0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .ms-nodes{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:20px;}
  .ms-node::before{margin-bottom:10px;}
}
@media (max-width:767px){
  .trust{grid-template-columns:repeat(2,minmax(0,1fr));padding:18px;}
  .reward-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .topic-card{flex:0 0 250px;}
  .search-box{flex-direction:column;}
  .search-box .btn{width:100%;}
}
@media (max-width:519px){
  .trust{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .ms-nodes{grid-template-columns:1fr;gap:18px;}
  .milestone{padding:24px 18px;}
  .card-body{padding:18px;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px;}
}

/* roulang page: category1 */
:root{
  --primary:#1560D6;
  --primary-deep:#0E3A82;
  --primary-soft:#E8F0FE;
  --accent:#FF8A1F;
  --accent-soft:#FFF2E2;
  --success:#12A87B;
  --ink:#14203A;
  --body:#4A5670;
  --muted:#8A94AB;
  --line:#E4E9F2;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,60,130,.06);
  --shadow-2:0 10px 26px rgba(20,60,130,.12);
  --shadow-3:0 16px 40px rgba(20,60,130,.16);
}
*,*::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",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  width:236px;flex:0 0 236px;position:sticky;top:0;height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:28px 20px 22px;
}
.main{flex:1 1 auto;min-width:0}
.container{max-width:1200px;margin:0 auto;padding:0 40px}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{display:flex;gap:10px;align-items:flex-start;padding:0 6px 22px;border-bottom:1px solid var(--line);margin-bottom:20px}
.brand .mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
}
.brand-main{font-size:14px;font-weight:700;color:var(--ink);line-height:1.45;letter-spacing:.01em}
.brand-sub{font-size:11.5px;color:var(--muted);line-height:1.5;margin-top:2px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14px;font-weight:500;
  color:var(--body);transition:background .2s ease,color .2s ease;
}
.nav-item i{width:16px;text-align:center;font-size:13px;color:var(--muted);transition:color .2s ease,transform .2s ease}
.nav-item:hover{background:var(--primary-soft);color:var(--primary)}
.nav-item:hover i{color:var(--primary);transform:translateX(2px)}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.nav-item.active i{color:var(--primary)}
.nav-item.active::before{
  content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:var(--primary);
}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-help{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);
  background:var(--primary-soft);border-radius:10px;padding:10px 12px;transition:background .2s ease;
}
.side-help:hover{background:#D9E6FD}
.side-copy{font-size:11.5px;color:var(--muted);margin-top:12px;line-height:1.6}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:50;height:56px;align-items:center;gap:12px;
  padding:0 16px;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.burger{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
}
.mobile-brand{font-size:14px;font-weight:700;color:var(--ink);line-height:1.2;flex:1;min-width:0}
.mobile-brand small{display:block;font-size:11px;font-weight:400;color:var(--muted)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:282px;background:#fff;z-index:70;
  transform:translateX(-100%);transition:transform .28s ease;padding:24px 20px;
  overflow-y:auto;display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,58,130,.35);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer .nav-item{padding:14px 12px;min-height:48px}

/* ---------- 通用组件 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;line-height:1.6;
}
.pill-accent{background:var(--accent-soft);color:#B85C05}
.pill-ghost{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.btn-light{background:#fff;color:var(--primary-deep);border-color:transparent}
.btn-light:hover{background:var(--primary-soft);transform:translateY(-1px)}
.btn-text{background:none;border:0;padding:0;color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;cursor:pointer}
.btn-text i{transition:transform .22s ease}
.btn-text:hover i{transform:translateX(3px)}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:box-shadow .28s ease,transform .28s ease,border-color .28s ease;
}
.card-hover:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D3E0F5}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-title{font-size:26px;font-weight:600;color:var(--ink);letter-spacing:.01em;line-height:1.4}
.section-sub{font-size:15px;color:var(--muted);margin-top:10px}
.eyebrow{font-size:12.5px;font-weight:600;color:var(--primary);letter-spacing:.12em}
.h3{font-size:19px;font-weight:600;color:var(--ink)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:28px}
.crumb a{color:var(--muted);transition:color .2s ease}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#C3CCDE}
.crumb .now{color:var(--ink);font-weight:500}

/* ---------- Hero ---------- */
.hero{padding:34px 0 10px}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-media{grid-column:span 6}
.hero h1{
  font-size:clamp(28px,3.2vw,38px);font-weight:700;color:var(--ink);
  line-height:1.25;letter-spacing:.01em;margin:16px 0 16px;
}
.hero-lead{font-size:16px;color:var(--body);line-height:1.85;max-width:38em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-media-frame{
  position:relative;border-radius:20px;overflow:hidden;background:var(--primary-soft);
  border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.hero-media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.hero-media-frame::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(21,96,214,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(21,96,214,.06) 1px,transparent 1px);
  background-size:36px 36px;pointer-events:none;
}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:36px}
.hero-stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-1)}
.hero-stat b{display:block;font-size:20px;color:var(--primary);font-weight:700}
.hero-stat span{font-size:12.5px;color:var(--muted)}

/* ---------- 图文交错 ---------- */
.zig{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center}
.zig + .zig{margin-top:72px}
.zig-media{grid-column:span 6}
.zig-copy{grid-column:span 6}
.zig.reverse .zig-media{order:2}
.zig.reverse .zig-copy{order:1}
.zig-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.zig-copy h2{font-size:26px;font-weight:600;color:var(--ink);line-height:1.4;margin:12px 0 16px;letter-spacing:.01em}
.zig-copy p{font-size:16px;line-height:1.85;margin-bottom:14px}
.zig-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.zig-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--body)}
.zig-list i{color:var(--success);font-size:14px;margin-top:6px}
.zig-shot{
  display:flex;align-items:center;gap:10px;margin-top:20px;padding:14px 16px;
  background:var(--primary-soft);border-radius:12px;font-size:14px;color:var(--primary-deep);
}
.zig-shot i{color:var(--primary)}

/* ---------- 要点卡网格 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.point-card{padding:26px 24px;display:flex;gap:18px;align-items:flex-start}
.point-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.point-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px}
.point-card p{font-size:14.5px;line-height:1.8;color:var(--body)}
.point-card .tag{margin-top:12px;display:inline-flex}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:12px;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{color:var(--primary);font-size:15px;transition:transform .25s ease;flex:0 0 auto}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--body)}
.faq-answer strong{color:var(--ink);font-weight:600}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--primary-deep);border-radius:20px;padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-2);position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.06);pointer-events:none;
}
.cta-card h2{font-size:24px;font-weight:700;color:#fff;line-height:1.4;letter-spacing:.01em}
.cta-card p{font-size:14.5px;color:rgba(255,255,255,.78);margin-top:10px;max-width:56ch;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.72);margin-top:88px}
.footer-inner{max-width:1200px;margin:0 auto;padding:64px 40px 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .mark{
  width:30px;height:30px;border-radius:9px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:34ch}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-grid a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .2s ease}
.footer-grid a:hover{color:#fff}
.footer-note{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .footer-inner{padding:56px 32px 0}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .layout{display:block}
  .mobile-bar{display:flex}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .hero{padding:24px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-copy,.hero-media{grid-column:auto}
  .hero-media{order:-1}
  .hero h1{margin:14px 0 14px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .zig{grid-template-columns:1fr;gap:28px}
  .zig-media,.zig-copy{grid-column:auto;order:0!important}
  .zig + .zig{margin-top:52px}
  .point-grid{grid-template-columns:1fr}
  .cta-card{flex-direction:column;align-items:flex-start;padding:34px 26px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer{margin-top:56px}
  .footer-inner{padding:48px 20px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:639px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .section-title{font-size:22px}
  .zig-copy h2{font-size:22px}
  .faq-item summary{font-size:15px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px}
  .point-card{padding:22px 18px;gap:14px}
}

/* roulang page: article */
:root{
  --primary:#1560D6;
  --primary-deep:#0E3A82;
  --primary-soft:#E8F0FE;
  --accent:#FF8A1F;
  --accent-soft:#FFF2E2;
  --success:#12A87B;
  --ink:#14203A;
  --body:#4A5670;
  --muted:#8A94AB;
  --line:#E4E9F2;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --danger:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,60,130,.06);
  --shadow-2:0 10px 26px rgba(20,60,130,.12);
  --shadow-3:0 16px 40px rgba(20,60,130,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{display:block;max-width:100%;height:auto}
button{font:inherit;border:none;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ============ 骨架 ============ */
.site{display:flex;align-items:flex-start;min-height:100vh}
.content-col{flex:1 1 auto;min-width:0}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  width:236px;
  flex:0 0 236px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.brand{display:flex;gap:10px;align-items:flex-start}
.brand-mark{
  width:36px;height:36px;flex:none;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1.35}
.brand-sub{font-size:12px;color:var(--muted);line-height:1.5;margin-top:2px}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--body);
  line-height:1.5;
}
.nav-item i{color:var(--muted);font-size:14px;transition:transform .22s ease,color .22s ease}
.nav-item:hover{background:var(--primary-soft);color:var(--primary)}
.nav-item:hover i{color:var(--primary);transform:translateX(2px)}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.nav-item.active i{color:var(--primary)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--primary);
}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}
.side-help{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink);font-weight:600;
  padding:8px 10px;border-radius:9px;background:var(--bg);
}
.side-help:hover{background:var(--primary-soft);color:var(--primary)}
.side-copy{font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{display:none}
.drawer{display:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,58,130,.35);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:60;
}
.drawer-panel{
  position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;
  background:#fff;z-index:70;padding:20px 16px;
  transform:translateX(-102%);transition:transform .28s ease;
  box-shadow:var(--shadow-3);overflow-y:auto;
}
.drawer.open .drawer-mask{opacity:1;pointer-events:auto}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:36px;height:36px;border-radius:10px;background:var(--bg);color:var(--ink);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{background:var(--primary-soft);color:var(--primary)}
.drawer .nav-item{padding:13px 12px;font-size:15px}

/* ============ 主内容区 ============ */
.main{display:block;padding:0 40px 96px}
.main-inner{max-width:1200px}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:26px 0 18px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#C6CEE0}
.crumb .now{color:var(--ink);font-weight:600;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:38px 44px 42px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.5;
  background:var(--primary-soft);color:var(--primary);
}
.chip-accent{background:var(--accent-soft);color:#B75B00}
.chip-success{background:rgba(18,168,123,.12);color:var(--success)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:13px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C6CEE0}
.article-card h1{
  font-size:38px;font-weight:700;line-height:1.28;letter-spacing:.01em;
  color:var(--ink);margin-top:18px;
}
.lede{font-size:16.5px;color:var(--body);margin-top:14px;max-width:760px}
.cover{
  margin:30px 0 0;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:21/9;background:var(--bg);
}
.cover img{width:100%;height:100%;object-fit:cover}

/* ============ 正文排版 ============ */
.article-body{max-width:760px;margin:36px auto 0;font-size:17px;line-height:1.9;color:#3F4B64}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:26px;font-weight:600;color:var(--ink);line-height:1.4;
  margin:48px 0 20px;padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--ink);margin:32px 0 14px}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:4px}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--primary-soft);box-shadow:inset 0 0 0 2px var(--primary);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item;padding-left:26px}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  font-size:13px;font-weight:700;color:var(--primary);
  width:18px;text-align:center;
}
.article-body blockquote{
  background:var(--primary-soft);
  border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;
  padding:18px 20px;margin:0 0 1.4em;color:#2C3A57;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.5em;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--primary-soft);color:var(--ink);font-weight:600}
.article-body a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(21,96,214,.3)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:var(--ink)}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0}
.table-scroll{overflow-x:auto;margin-bottom:1.5em}
.empty-state{
  max-width:760px;margin:34px auto 0;text-align:center;
  background:var(--bg);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:52px 24px;
}
.empty-state i{font-size:32px;color:var(--muted)}
.empty-state h1{font-size:24px;color:var(--ink);font-weight:700;margin-top:14px}
.empty-state p{font-size:15px;color:var(--body);margin-top:10px}

/* ============ 文末推荐 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:88px 0 24px}
.section-head h2{font-size:26px;font-weight:600;color:var(--ink);line-height:1.35}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more i{transition:transform .22s ease}
.link-more:hover i{transform:translateX(3px)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D3DEF2}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--body);line-height:1.75;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.card-foot .time{font-size:12px;color:var(--muted)}

/* ============ 翻页 / 返回 ============ */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.pager-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);transition:box-shadow .3s ease,transform .3s ease;
}
.pager-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.pager-item span{font-size:12.5px;color:var(--muted);display:block}
.pager-item strong{display:block;font-size:16px;color:var(--ink);font-weight:600;margin-top:8px;line-height:1.55}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:12px;box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--primary);flex:none;
  transition:transform .25s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-answer{padding:0 22px 20px;font-size:15px;color:var(--body);line-height:1.8}

/* ============ CTA 横幅 ============ */
.cta-band{
  margin-top:88px;border-radius:20px;padding:40px 44px;
  background:linear-gradient(120deg,var(--primary-deep),var(--primary));
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-2);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;line-height:1.4}
.cta-band p{font-size:15px;color:rgba(255,255,255,.82);margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn i{font-size:13px;transition:transform .22s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--primary-deep)}
.btn-light:hover{background:var(--primary-soft);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.btn[disabled],.btn.is-disabled{opacity:.45;filter:grayscale(.4);pointer-events:none}

/* ============ 页脚 ============ */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.74);margin-top:0}
.footer-inner{max-width:1200px;margin:0 auto;padding:64px 40px 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff}
.footer-brand .mark{
  width:30px;height:30px;border-radius:9px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;flex:none;
}
.footer-desc{font-size:14px;line-height:1.85;margin-top:14px;max-width:330px;color:rgba(255,255,255,.66)}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-grid a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0}
.footer-grid a:hover{color:#fff}
.footer-note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.14);margin-top:48px;padding-top:20px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .main{padding:0 32px 80px}
  .footer-inner{padding:56px 32px 24px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .mobile-bar{
    display:block;position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);
  }
  .mobile-bar-inner{height:56px;display:flex;align-items:center;gap:12px;padding:0 16px}
  .hamb{width:38px;height:38px;border-radius:10px;background:var(--bg);color:var(--ink);display:flex;align-items:center;justify-content:center}
  .hamb:hover{background:var(--primary-soft);color:var(--primary)}
  .m-brand{display:flex;flex-direction:column;min-width:0;line-height:1.25}
  .m-brand strong{font-size:13.5px;color:var(--ink);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .m-brand span{font-size:11px;color:var(--muted)}
  .m-cta{margin-left:auto;padding:10px 15px;font-size:13.5px}
  .main{padding:0 20px 64px}
  .article-card{padding:28px 22px 32px}
  .article-card h1{font-size:28px}
  .cover{aspect-ratio:16/9}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head{margin-top:64px}
  .cta-band{margin-top:64px;padding:32px 26px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-inner{padding:48px 20px 22px}
}
@media (max-width:767px){
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body img{margin-left:-6px;margin-right:-6px;max-width:calc(100% + 12px);width:calc(100% + 12px);border-radius:10px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .article-card h1{font-size:25px}
  .article-card{padding:24px 16px 28px}
  .section-head h2{font-size:22px}
  .cta-band{padding:26px 18px}
  .cta-actions{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --primary:#1560D6;
  --primary-deep:#0E3A82;
  --primary-soft:#E8F0FE;
  --accent:#FF8A1F;
  --accent-soft:#FFF2E2;
  --success:#12A87B;
  --danger:#D64545;
  --ink:#14203A;
  --body:#4A5670;
  --muted:#8A94AB;
  --line:#E4E9F2;
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,60,130,.06);
  --sh-2:0 10px 26px rgba(20,60,130,.12);
  --sh-3:0 16px 40px rgba(20,60,130,.16);
  --sp:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 布局骨架 ============ */
.page{display:flex;gap:40px;max-width:1440px;margin:0 auto;padding:28px 40px 0;align-items:flex-start;}
.sidebar{
  width:236px;flex:0 0 236px;position:sticky;top:28px;align-self:flex-start;
  max-height:calc(100vh - 56px);overflow-y:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--sh-1);padding:22px 16px;display:flex;flex-direction:column;gap:22px;
}
.brand{display:flex;gap:10px;align-items:center;padding:4px 6px 14px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:17px;box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;min-width:0;}
.brand-text strong{color:var(--ink);font-size:15px;font-weight:700;}
.brand-text em{font-style:normal;color:var(--muted);font-size:12px;letter-spacing:.02em;}
.nav-list{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:11px;
  padding:11px 12px;border-radius:10px;font-size:15px;color:var(--body);
  transition:background .25s ease,color .25s ease;
}
.nav-item i{width:18px;text-align:center;color:var(--muted);font-size:14px;transition:transform .25s ease,color .25s ease;}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--primary);transition:height .25s ease;
}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);}
.nav-item:hover i{color:var(--primary);transform:translateX(2px);}
.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.nav-item.active i{color:var(--primary);}
.nav-item.active::before{height:22px;}
.side-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;}
.side-mail{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);word-break:break-all;}
.side-mail i{font-size:12px;}
.side-copy{font-size:12px;color:var(--muted);line-height:1.7;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:60;height:56px;align-items:center;gap:10px;
  padding:0 16px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);
}
.hamburger{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;color:var(--ink);transition:.25s;
}
.hamburger:hover{border-color:var(--primary);color:var(--primary);}
.m-brand{flex:1 1 auto;min-width:0;font-size:14px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.m-cta{
  flex:0 0 auto;background:var(--primary);color:#fff;font-size:13px;font-weight:600;
  padding:9px 14px;border-radius:10px;transition:.25s;
}
.m-cta:hover{background:var(--primary-deep);}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:284px;max-width:84vw;background:#fff;z-index:80;
  transform:translateX(-102%);transition:transform .3s ease;padding:20px 16px;overflow-y:auto;
  box-shadow:var(--sh-3);
}
.drawer.open{transform:none;}
.drawer .nav-item{padding:14px 12px;min-height:48px;}
.overlay{
  position:fixed;inset:0;background:rgba(14,58,130,.35);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.overlay.show{opacity:1;visibility:visible;}

/* ============ 内容区 ============ */
.content{flex:1 1 auto;min-width:0;max-width:1200px;padding-bottom:40px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:14px;}
.crumb a{transition:color .2s;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C7D0E0;}

.compact-head{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--sh-1);padding:28px 30px;
}
.compact-head .eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:var(--primary-soft);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}
.compact-head h1{font-size:clamp(26px,3vw,36px);line-height:1.28;font-weight:700;}
.compact-head .lead{margin-top:10px;font-size:15px;color:var(--body);}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);background:#F1F5FC;color:var(--body);border:1px solid var(--line);
}
.tag.blue{background:var(--primary-soft);color:var(--primary);border-color:transparent;}
.tag.orange{background:var(--accent-soft);color:#B9630F;border-color:transparent;}
.tag.green{background:rgba(18,168,123,.12);color:#0E8A64;border-color:transparent;}

.layout-2{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:24px;margin-top:24px;align-items:start;}
.main-col{display:flex;flex-direction:column;gap:24px;min-width:0;}
.side-col{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px;min-width:0;}

.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;transition:box-shadow .3s ease,border-color .3s ease;
}
.panel:hover{box-shadow:var(--sh-2);border-color:#D9E3F5;}
.panel h2{font-size:24px;line-height:1.4;display:flex;gap:12px;align-items:flex-start;}
.panel h2::before{
  content:"";width:4px;border-radius:4px;background:var(--primary);flex:0 0 4px;
  height:22px;margin-top:6px;
}
.panel h3{font-size:18px;line-height:1.5;}
.panel p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--body);}
.panel p.note{font-size:14px;color:var(--muted);}

.check{margin-top:18px;display:grid;gap:12px;}
.check li{position:relative;padding-left:28px;font-size:15px;color:var(--body);}
.check li::before{
  content:"✓";position:absolute;left:0;top:0;width:19px;height:19px;border-radius:50%;
  background:rgba(18,168,123,.12);color:var(--success);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.check li strong{color:var(--ink);font-weight:600;}

.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px;}
.cmp-card{
  background:#FBFCFE;border:1px solid var(--line);border-radius:14px;padding:22px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.cmp-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D9E3F5;}
.cmp-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.cmp-card ul{margin-top:14px;display:grid;gap:9px;}
.cmp-card li{position:relative;padding-left:16px;font-size:14.5px;color:var(--body);}
.cmp-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.cmp-card.alt li::before{background:var(--accent);}
.cmp-flow{margin-top:16px;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);}
.cmp-flow span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 10px;}
.cmp-flow i{font-size:10px;}

.figure{margin-top:22px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#EEF3FB;}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.figure:hover img{transform:scale(1.03);}
.figure figcaption{font-size:12px;color:var(--muted);text-align:center;padding:10px 14px;background:#fff;border-top:1px solid var(--line);}

/* 里程碑 */
.milestone{position:relative;margin-top:30px;}
.ms-rail{position:absolute;left:12%;right:12%;top:9px;height:8px;border-radius:8px;background:var(--line);}
.ms-fill{display:block;height:100%;width:52%;border-radius:8px;background:var(--primary);}
.ms-nodes{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.ms-node{text-align:center;}
.ms-dot{
  width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--line);
  margin:0 auto;position:relative;z-index:1;
}
.ms-node.done .ms-dot{border-color:var(--success);background:var(--success);}
.ms-node.now .ms-dot{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(21,96,214,.15);}
.ms-card{margin-top:14px;background:#FBFCFE;border:1px solid var(--line);border-radius:14px;padding:16px;text-align:left;}
.ms-card strong{display:block;color:var(--ink);font-size:15px;font-weight:600;}
.ms-card span{display:block;margin-top:6px;font-size:13px;color:var(--muted);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 11px;border-radius:var(--r-pill);background:var(--primary-soft);color:var(--primary);}
.badge.ok{background:rgba(18,168,123,.12);color:#0E8A64;}
.badge.wait{background:#EEF1F7;color:var(--muted);}
.ms-card .badge{margin-top:10px;}

/* FAQ */
.faq{display:grid;gap:12px;margin-top:20px;}
.faq details{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);
  border-radius:12px;overflow:hidden;transition:box-shadow .3s ease;
}
.faq details:hover{box-shadow:var(--sh-1);}
.faq summary{
  list-style:none;cursor:pointer;padding:16px 20px;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary i{color:var(--primary);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq details[open] summary i{transform:rotate(45deg);}
.faq .ans{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--body);}

/* 侧栏组件 */
.toc-card,.quick-card,.tip-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px;
}
.toc-card h3,.quick-card h3,.tip-card h3{font-size:15px;font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.toc-card h3 i,.quick-card h3 i,.tip-card h3 i{color:var(--primary);font-size:13px;}
.toc{display:flex;flex-direction:column;gap:4px;}
.toc a{
  display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--body);
  border-left:2px solid transparent;transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.toc a:hover{background:var(--primary-soft);color:var(--primary);}
.toc a.active{background:var(--primary-soft);color:var(--primary);font-weight:600;border-left-color:var(--primary);}
.quick-card{background:linear-gradient(180deg,#FBFCFE,#FFFFFF);}
.quick-list{display:flex;flex-direction:column;gap:10px;}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;
  padding:11px 14px;border:1px solid var(--line);border-radius:10px;color:var(--ink);
  transition:background .25s ease,border-color .25s ease,color .25s ease,transform .25s ease;
}
.quick-list a:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.quick-list a i{font-size:11px;color:var(--muted);transition:transform .25s ease,color .25s ease;}
.quick-list a:hover i{color:var(--primary);transform:translateX(3px);}
.tip-card{background:var(--primary-soft);border-color:#CFDEF9;}
.tip-card p{font-size:13.5px;color:#2C4A80;line-height:1.8;}
.tip-card p+p{margin-top:10px;}
.data-strip{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px;}
.data-cell{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center;}
.data-cell b{display:block;color:var(--primary);font-size:20px;font-weight:700;line-height:1.3;}
.data-cell span{font-size:12px;color:var(--muted);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:var(--sh-1);}
.btn-white{background:#fff;color:var(--primary-deep);}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);}
.btn-text{color:var(--primary);padding:0;font-size:14px;}
.btn-text i{font-size:12px;transition:transform .25s ease;}
.btn-text:hover i{transform:translateX(3px);}
.btn-block{width:100%;}

/* 底部横幅 CTA */
.banner{
  margin-top:8px;background:var(--primary-deep);border-radius:20px;padding:34px 36px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--sh-2);
}
.banner h2{color:#fff;font-size:24px;line-height:1.4;}
.banner p{margin-top:8px;font-size:14.5px;color:#C6D6F2;max-width:560px;}
.banner .actions{display:flex;gap:12px;flex:0 0 auto;}

/* 页脚 */
.footer{background:var(--primary-deep);color:#C9D6EE;margin-top:72px;}
.footer-inner{max-width:1440px;margin:0 auto;padding:56px 40px 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer a{display:block;font-size:14px;color:#C9D6EE;padding:5px 0;transition:color .2s ease,padding-left .2s ease;}
.footer a:hover{color:#fff;padding-left:3px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:12px;}
.footer-brand .mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:16px;
}
.footer-desc{font-size:14px;color:#A9BAD8;line-height:1.85;max-width:330px;}
.footer-note{font-size:14px;color:#A9BAD8;line-height:1.9;}
.footer-bottom{
  margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#9FB0CE;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .page{padding:24px 28px 0;gap:28px;}
  .footer-inner{padding:48px 28px 22px;}
  .compact-head{padding:24px;}
}
@media (max-width:1023px){
  .page{display:block;padding:0;}
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .content{max-width:none;padding:20px 22px 0;}
  .layout-2{grid-template-columns:1fr;}
  .side-col{position:static;}
  .compact-head{border-radius:16px;}
  .banner{padding:28px 24px;}
  .footer-inner{padding:44px 22px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:767px){
  .compact-head{padding:22px;}
  .compact-head h1{font-size:26px;}
  .compact-head .lead{font-size:14.5px;}
  .panel{padding:20px;border-radius:14px;}
  .panel h2{font-size:20px;}
  .panel h2::before{height:18px;margin-top:5px;}
  .compare{grid-template-columns:1fr;}
  .ms-rail{display:none;}
  .ms-nodes{grid-template-columns:1fr;gap:10px;}
  .ms-node{display:flex;gap:12px;align-items:flex-start;text-align:left;}
  .ms-dot{margin:6px 0 0;}
  .ms-card{margin-top:0;flex:1;}
  .banner{flex-direction:column;align-items:stretch;gap:18px;}
  .banner .actions{flex-direction:column;}
  .banner .btn{width:100%;}
  .footer{margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .data-strip{grid-template-columns:1fr 1fr;}
}
@media (max-width:519px){
  .content{padding:16px 16px 0;}
  .m-brand{font-size:13px;}
  .drawer{width:264px;}
  .faq summary{font-size:15px;padding:14px 16px;}
  .faq .ans{padding:0 16px 16px;font-size:14.5px;}
  .toc-card,.quick-card,.tip-card{padding:16px;}
}