/* roulang page: index */
:root{
  --brand-600:#1E56C8;
  --brand-500:#2F6FEA;
  --brand-700:#16409B;
  --brand-100:#DCE8FF;
  --brand-50:#F1F6FF;
  --accent-600:#F08A24;
  --accent-50:#FFF4E6;
  --teal:#0FA3A3;
  --teal-deep:#0B7C7C;
  --ink-900:#101B2B;
  --ink-700:#2C3E57;
  --ink-500:#5B6B80;
  --line:#E4EAF3;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --ph:#E9EFF8;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-rest:0 1px 2px rgba(16,34,64,.04), 0 8px 24px rgba(16,34,64,.06);
  --shadow-hover:0 12px 32px rgba(16,34,64,.10);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;}
button{font-family:inherit;}
.wrap{max-width:1240px;margin:0 auto;padding:0 40px;}

/* ---------- 左侧导航 ---------- */
.app{display:flex;min-height:100vh;}
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:20px 16px;z-index:60;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;height:64px;padding:0 8px;text-decoration:none;}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:11px;
  background:var(--brand-600);color:#fff;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-text strong{font-size:14px;font-weight:700;color:var(--ink-900);line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-text small{font-size:11px;color:var(--ink-500);line-height:1.4;}
.side-divider{height:1px;background:var(--line);margin:16px 8px;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:flex;align-items:center;height:44px;padding:0 16px;border-radius:var(--radius-btn);
  position:relative;font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--bg);color:var(--ink-900);}
.nav-item.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:999px;background:var(--brand-600);
}
.side-foot{margin-top:auto;padding-top:20px;}
.side-note{font-size:12px;line-height:1.7;color:var(--ink-500);padding:0 8px 14px;}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:55;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink-900);}
.topbar-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:11px;}
.hamburger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.hamburger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink-900);}
.scrim{
  position:fixed;inset:0;background:rgba(16,27,43,.4);z-index:58;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.scrim.show{opacity:1;pointer-events:auto;}

/* ---------- 主区 ---------- */
.app-main{margin-left:var(--sidebar-w);flex:1;min-width:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,86,200,.24);}
.btn-primary:active{background:var(--brand-700);transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);}
.btn-ghost:active{background:var(--brand-100);}
.btn-block{width:100%;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.link-cta{font-weight:600;font-size:14px;text-decoration:underline;text-underline-offset:3px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700);}
.badge-accent{background:var(--accent-50);color:var(--accent-600);}
.badge-teal{background:rgba(15,163,163,.13);color:var(--teal-deep);}
.badge-muted{background:#EEF2F8;color:var(--ink-500);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-700);font-size:13px;font-weight:600;
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#F1F6FF 0%,rgba(241,246,255,0) 92%);
  padding:64px 0 80px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{
  font-size:40px;line-height:1.22;font-weight:700;color:var(--ink-900);
  letter-spacing:-.5px;margin-top:18px;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-700);max-width:580px;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:42px;padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats .stat{padding-right:20px;border-right:1px solid var(--line);}
.hero-stats .stat:last-child{border-right:0;padding-right:0;}
.stat-num{
  display:block;font-size:24px;font-weight:700;color:var(--accent-600);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-label{display:block;font-size:13px;color:var(--ink-500);margin-top:6px;line-height:1.5;}
.hero-media{
  border-radius:var(--radius-card);overflow:hidden;background:var(--ph);
  box-shadow:var(--shadow-rest);aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--brand-50);}
.sec-head{max-width:780px;margin-bottom:44px;}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:28px;line-height:1.35;font-weight:600;color:var(--ink-900);
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;
  border-radius:2px;background:var(--brand-600);
}
.sec-head p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--ink-500);}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.sec-head-row .sec-head{margin-bottom:0;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{
  width:44px;height:44px;border-radius:12px;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{margin:18px 0 8px;font-size:18px;font-weight:600;color:var(--ink-900);}
.step p{font-size:14px;line-height:1.75;color:var(--ink-700);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.card-thumb{aspect-ratio:4/3;background:var(--ph);overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.card:hover .card-thumb img{transform:scale(1.02);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-900);transition:color .2s ease;}
.card:hover .card-body h3{color:var(--brand-600);}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-700);}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;}

/* ---------- 进度 / 任务 ---------- */
.progress-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-rest);
}
.progress-top{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;}
.progress-top h3{font-size:20px;font-weight:600;color:var(--ink-900);}
.progress-top span{font-size:13px;color:var(--ink-500);}
.progress-track{
  position:relative;height:8px;border-radius:999px;background:#EEF2F8;
  margin-top:20px;overflow:hidden;
}
.progress-fill{height:100%;width:62%;border-radius:999px;background:var(--brand-600);}
.progress-mark{
  position:absolute;left:62%;top:50%;transform:translate(-50%,-50%);
  width:14px;height:14px;border-radius:999px;background:var(--accent-600);
  border:3px solid #fff;box-shadow:0 2px 6px rgba(16,34,64,.18);
}
.progress-scale{display:flex;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--ink-500);}
.task-list{margin-top:26px;display:flex;flex-direction:column;}
.task{
  display:flex;align-items:center;gap:14px;min-height:56px;padding:0 8px;
  border-bottom:1px solid var(--line);transition:background .2s ease;
}
.task:last-child{border-bottom:0;}
.task:hover{background:#FAFCFF;}
.dot{width:10px;height:10px;border-radius:999px;flex:none;}
.dot-done{background:var(--teal);}
.dot-doing{background:var(--brand-600);}
.dot-todo{background:#C6D0DE;}
.task-name{font-size:15px;color:var(--ink-900);flex:1;min-width:0;}
.task-note{font-size:13px;color:var(--ink-500);}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.news-thumb{
  width:132px;flex:none;aspect-ratio:16/10;border-radius:var(--radius-img);
  overflow:hidden;background:var(--ph);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{min-width:0;display:flex;flex-direction:column;gap:8px;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink-900);transition:color .2s ease;}
.news-card:hover .news-body h3{color:var(--brand-600);}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-500);}
.empty{max-width:420px;margin:0 auto;text-align:center;padding:40px 24px;}
.empty-icon{
  width:72px;height:72px;border-radius:20px;background:#EEF2F8;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
}
.empty-icon span{width:28px;height:3px;border-radius:2px;background:#C6D0DE;display:block;position:relative;}
.empty-icon span::after{content:"";position:absolute;left:0;top:8px;width:18px;height:3px;border-radius:2px;background:#D6DEEA;}
.empty p{font-size:15px;color:var(--ink-500);margin-bottom:20px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--line);border-radius:16px;
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-rest);
}
.cta-band h2{font-size:24px;line-height:1.4;font-weight:600;color:var(--ink-900);}
.cta-band p{margin-top:10px;font-size:15px;color:var(--ink-700);}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-img);
  overflow:hidden;transition:border-color .2s ease;
}
.faq-item.open{border-left:3px solid var(--brand-600);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;min-height:52px;background:transparent;border:0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink-900);text-align:left;line-height:1.5;
}
.faq-q:hover{color:var(--brand-600);}
.faq-sign{
  position:relative;width:16px;height:16px;flex:none;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand-600);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ---------- 页脚 ---------- */
.footer{background:var(--surface);border-top:1px solid var(--line);margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:56px 0 0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:15px;font-weight:700;color:var(--ink-900);}
.footer p{font-size:14px;line-height:1.8;color:var(--ink-500);}
.footer h4{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:16px;}
.footer li{margin-bottom:10px;}
.footer li a{font-size:14px;color:var(--ink-700);}
.footer li a:hover{color:var(--brand-600);}
.footer-bottom{
  margin-top:40px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:200px;}
  .wrap{padding:0 32px;}
  .hero h1{font-size:34px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .app-sidebar{
    width:280px;transform:translateX(-100%);
    transition:transform .25s ease;box-shadow:0 12px 32px rgba(16,34,64,.16);
  }
  .app-sidebar.open{transform:translateX(0);}
  .app-main{margin-left:0;padding-top:56px;}
  .topbar{display:flex;}
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;aspect-ratio:16/9;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .section{padding:64px 0;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .hero h1{font-size:27px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;border-top:0;padding-top:0;margin-top:32px;}
  .hero-stats .stat{border-right:0;padding:14px 0;border-bottom:1px solid var(--line);}
  .hero-stats .stat:last-child{border-bottom:0;}
  .sec-head h2,.section h2{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .card-body{padding:16px;}
  .card-body h3{font-size:16px;}
  .section{padding:48px 0;}
  .progress-panel{padding:22px;}
  .news-card{flex-direction:column;gap:14px;}
  .news-thumb{width:100%;aspect-ratio:16/9;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-band .btn{width:100%;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;padding-top:40px;}
  .footer{margin-top:56px;}
}
@media (max-width:359px){
  body{font-size:15px;}
  .wrap{padding:0 16px;}
  .hero h1{font-size:25px;}
  .card-grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --brand-600:#1E56C8;
  --brand-500:#2F6FEA;
  --brand-700:#16409B;
  --brand-100:#DCE8FF;
  --brand-50:#F1F6FF;
  --accent-600:#F08A24;
  --accent-50:#FFF4E6;
  --teal-600:#0FA3A3;
  --teal-50:#E4F7F7;
  --ink-900:#101B2B;
  --ink-700:#2C3E57;
  --ink-500:#5B6B80;
  --line:#E4EAF3;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,34,64,.04),0 8px 24px rgba(16,34,64,.06);
  --sh-2:0 12px 32px rgba(16,34,64,.10);
  --sidebar-w:240px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:600;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;flex:0 0 38px;
  border-radius:11px;background:var(--brand-600);color:#fff;
  font-weight:700;font-size:13px;letter-spacing:.6px;
}
.container{width:100%;max-width:1240px;margin:0 auto}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;z-index:60;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--surface);
  border-bottom:1px solid transparent;transition:box-shadow .2s ease,border-color .2s ease;
}
.topbar.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 18px rgba(16,34,64,.06)}
.topbar-brand{display:flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:600;font-size:15px}
.topbar-brand:hover{color:var(--brand-600)}
.hamburger{
  width:42px;height:42px;border-radius:10px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:.2s ease}
.hamburger:hover{background:var(--brand-50);border-color:var(--brand-100)}

/* ---------- 左侧 App Shell ---------- */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:70;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:20px 16px;
}
.side-brand{display:flex;align-items:center;flex-wrap:wrap;gap:8px 10px;padding:4px 8px 18px;color:var(--ink-900)}
.side-brand-text{font-weight:700;font-size:15px;color:var(--ink-900)}
.side-brand-sub{width:100%;font-size:12px;line-height:1.5;color:var(--ink-500);padding-left:48px}
.side-nav{display:flex;flex-direction:column;gap:4px;padding-top:14px;border-top:1px solid var(--line)}
.nav-link{
  position:relative;display:flex;align-items:center;height:44px;
  padding:0 16px;border-radius:var(--r-btn);
  font-size:15px;color:var(--ink-700);font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--bg);color:var(--ink-900)}
.nav-link.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--brand-600);
}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-foot p{font-size:12px;line-height:1.7;color:var(--ink-500);margin-bottom:14px}
.overlay{
  display:none;position:fixed;inset:0;z-index:65;background:rgba(16,27,43,.4);
  opacity:0;transition:opacity .2s ease;
}
.overlay.is-open{display:block;opacity:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(30,86,200,.22)}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(30,86,200,.26)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--brand-600);border:1px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);border-color:var(--brand-700)}
.btn-block{width:100%}
.link-more{color:var(--brand-600);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.link-more:hover{color:var(--brand-700)}

/* ---------- 主体 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;padding:36px 40px 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:20px}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:#B7C2D4}
.crumb .current{color:var(--ink-900);font-weight:500}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}

.panel{background:var(--surface);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:40px}
.article-head{margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:var(--accent-50);color:var(--accent-600)}
.badge-teal{background:var(--teal-50);color:var(--teal-600)}
.article-head h1{font-size:34px;line-height:1.35;margin:16px 0 14px;font-weight:700;max-width:22em}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.meta-row .dot{color:#C3CCDB}

.dark-strip{
  display:flex;align-items:center;gap:10px;margin-top:22px;
  background:#101B2B;border-radius:var(--r-img);padding:14px 18px;
  color:#C6D4EA;font-size:13px;line-height:1.7;
}
.dark-strip strong{color:#fff;font-weight:600}
.dark-strip .pin{width:8px;height:8px;border-radius:50%;background:var(--accent-600);flex:0 0 8px}

/* 正文排版 */
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--ink-700)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:24px;line-height:1.5;font-weight:600;color:var(--ink-900);
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--brand-600);
}
.article-body h3{font-size:19px;line-height:1.6;font-weight:600;color:var(--ink-900);margin:30px 0 12px}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink-900);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.45em}
.article-body ul li{list-style:disc;margin:.5em 0}
.article-body ol li{list-style:decimal;margin:.5em 0}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--brand-50);
  border-left:3px solid var(--brand-600);border-radius:0 var(--r-img) var(--r-img) 0;
  font-size:15px;line-height:1.9;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;width:auto;max-width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-500);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th{background:var(--brand-50);color:var(--ink-900);font-weight:600;text-align:left;padding:12px 14px}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-700)}
.article-body strong{color:var(--ink-900);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

.article-foot{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between}
.empty-state{text-align:center;padding:56px 24px;max-width:420px;margin:0 auto}
.empty-state .empty-ico{
  width:96px;height:96px;margin:0 auto 20px;border-radius:20px;
  background:var(--brand-50) url('/assets/images/coverpic/cover-6.png') center/cover no-repeat;
  border:1px solid var(--line);
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--ink-500);margin-bottom:22px}

/* 右侧目录 */
.article-aside{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px}
.aside-card{background:var(--surface);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px}
.aside-card h3{font-size:15px;font-weight:600;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-700);
  padding:8px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--brand-50);color:var(--brand-600);border-left-color:var(--brand-600)}
.toc-list a.is-sub{padding-left:22px;font-size:13px;color:var(--ink-500)}
.toc-empty{font-size:13px;color:var(--ink-500)}
.reco-mini{display:flex;flex-direction:column;gap:14px}
.reco-mini a{display:flex;gap:12px;align-items:flex-start;color:var(--ink-900)}
.reco-mini img{width:76px;height:52px;flex:0 0 76px;border-radius:10px;background:#E9EFF8}
.reco-mini span{font-size:14px;line-height:1.55;font-weight:500}
.reco-mini a:hover span{color:var(--brand-600)}
.reco-mini em{display:block;font-style:normal;font-size:12px;color:var(--ink-500);margin-top:4px}

/* 相关推荐 */
.section{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:24px;position:relative;padding-bottom:12px}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:3px;border-radius:3px;background:var(--brand-600)}
.reco-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  background:var(--surface);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-media{aspect-ratio:16/10;background:#E9EFF8;overflow:hidden}
.card-media img{width:100%;height:100%;transition:transform .25s ease}
.card:hover .card-media img{transform:scale(1.02)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;font-weight:600}
.card:hover .card-body h3{color:var(--brand-600)}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-700)}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500)}

/* CTA 通栏 */
.cta-band{
  margin-top:72px;background:var(--surface);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:36px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background-image:linear-gradient(90deg,var(--brand-50),rgba(241,246,255,0));
}
.cta-band h2{font-size:24px;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--ink-700);max-width:52em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{margin-left:var(--sidebar-w);margin-top:88px;background:var(--surface);border-top:1px solid var(--line);padding:56px 40px 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:var(--ink-900);font-size:16px}
.footer h4{font-size:15px;margin-bottom:14px;color:var(--ink-900)}
.footer p{font-size:14px;line-height:1.85;color:var(--ink-500);max-width:32em}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:14px;color:var(--ink-700)}
.footer ul a:hover{color:var(--brand-600)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--ink-500);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:200px}
  .main{padding:32px 32px 0}
  .footer{padding:48px 32px 24px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;order:2}
  .article-body{max-width:720px}
  .reco-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .app-sidebar{
    width:280px;transform:translateX(100%);
    transition:transform .25s ease;box-shadow:-8px 0 32px rgba(16,34,64,.12);
    padding-top:24px;
  }
  .app-sidebar.is-open{transform:translateX(0)}
  .main{margin-left:0;padding:76px 24px 0}
  .footer{margin-left:0;padding:44px 24px 22px}
  .article-head h1{font-size:28px}
  .panel{padding:26px 22px}
}
@media (max-width:767px){
  body{font-size:15px}
  .main{padding:72px 16px 0}
  .footer{padding:40px 16px 22px}
  .article-head h1{font-size:24px;line-height:1.45}
  .article-body{font-size:15px;line-height:1.85}
  .article-body h2{font-size:20px;margin:32px 0 14px}
  .article-body h3{font-size:17px}
  .section{margin-top:48px}
  .section-head h2{font-size:20px}
  .reco-grid{grid-template-columns:1fr}
  .cta-band{padding:26px 22px;margin-top:48px}
  .cta-band h2{font-size:20px}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .topbar-brand span:last-child{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-layout{gap:22px}
  .aside-card{padding:18px}
}
@media (max-width:360px){
  body{font-size:14px}
  .main{padding:70px 12px 0}
  .panel{padding:20px 16px}
}

/* roulang page: category1 */
:root{
  --brand-600:#1E56C8;
  --brand-500:#2F6FEA;
  --brand-700:#16409B;
  --brand-100:#DCE8FF;
  --brand-50:#F1F6FF;
  --accent-600:#F08A24;
  --accent-50:#FFF4E6;
  --teal:#0FA3A3;
  --teal-50:#E4F7F7;
  --ink-900:#101B2B;
  --ink-700:#2C3E57;
  --ink-500:#5B6B80;
  --line:#E4EAF3;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --img-bg:#E9EFF8;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,34,64,.04), 0 8px 24px rgba(16,34,64,.06);
  --sh-2:0 12px 32px rgba(16,34,64,.10);
  --sidebar-w:240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-700);}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

/* ---------- 侧栏 / 顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.topbar.is-scrolled{box-shadow:0 4px 16px rgba(16,34,64,.08);}
.topbar-brand{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ink-900);
}
.topbar-brand:hover{color:var(--brand-600);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 9px;border-radius:8px;
  background:var(--brand-600);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.hamburger{
  width:40px;height:40px;border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-btn);display:flex;flex-direction:column;gap:4px;
  align-items:center;justify-content:center;transition:background .2s ease,border-color .2s ease;
}
.hamburger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink-700);}
.hamburger:hover{background:var(--brand-50);border-color:var(--brand-100);}

.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;gap:20px;
  padding:18px 16px 20px;background:var(--surface);
  border-right:1px solid var(--line);overflow-y:auto;
}
.sidebar-brand{
  display:flex;align-items:center;gap:10px;min-height:64px;
  padding-bottom:16px;border-bottom:1px solid var(--line);
}
.sidebar-brand-text{display:flex;flex-direction:column;line-height:1.3;}
.sidebar-brand-text strong{font-size:15px;font-weight:700;color:var(--ink-900);}
.sidebar-brand-text em{font-style:normal;font-size:12px;color:var(--ink-500);margin-top:2px;}
.sidebar-nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;
  padding:0 16px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--bg);color:var(--ink-900);}
.nav-item.is-active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:var(--r-pill);background:var(--brand-600);
}
.sidebar-cta{
  margin-top:auto;padding:16px;border-radius:var(--r-card);
  background:var(--brand-50);border:1px solid var(--brand-100);
}
.sidebar-cta p{font-size:13px;line-height:1.6;color:var(--ink-500);margin-bottom:12px;}
.drawer-mask{
  position:fixed;inset:0;z-index:55;background:rgba(16,27,43,.4);
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

.site-main{margin-left:var(--sidebar-w);}

/* ---------- 通用容器与按钮 ---------- */
.wrap{max-width:1240px;margin:0 auto;padding:0 40px;}
.section{padding:78px 0;}
.section--tight{padding-top:56px;}
.section--tint{background:var(--brand-50);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;
}
h1{font-size:40px;line-height:1.2;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
h2.section-title{
  position:relative;padding-left:14px;
  font-size:28px;line-height:1.32;font-weight:600;color:var(--ink-900);
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:var(--r-pill);background:var(--brand-600);
}
h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink-900);}
.lead{font-size:16px;line-height:1.8;color:var(--ink-700);max-width:720px;}
.muted{font-size:13px;line-height:1.7;color:var(--ink-500);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{background:var(--brand-700);transform:translateY(0);}
.btn-ghost{background:var(--surface);color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-600);transform:translateY(-1px);}
.btn-ghost:active{background:var(--brand-100);transform:translateY(0);}
.btn-block{width:100%;}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand-600);border-bottom:1px solid var(--brand-600);padding-bottom:2px;
}
.link-cta:hover{color:var(--brand-700);border-color:var(--brand-700);}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700);}
.badge-accent{background:var(--accent-50);color:var(--accent-600);}
.badge-teal{background:var(--teal-50);color:var(--teal);}
.badge-danger{background:#FDECEC;color:#C6362F;}

/* ---------- Hero ---------- */
.cat-hero{padding:64px 0 56px;background:linear-gradient(180deg,var(--brand-50) 0%,rgba(241,246,255,0) 78%);}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero-brandline{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap;}
.hero-brandline span.name{font-size:14px;font-weight:600;color:var(--brand-700);}
.cat-hero h1{margin-bottom:18px;}
.cat-hero .hero-sub{font-size:17px;line-height:1.85;color:var(--ink-700);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.hero-points{display:flex;gap:0;margin-top:36px;flex-wrap:wrap;}
.hero-points .point{padding-right:28px;margin-right:28px;border-right:1px solid var(--line);}
.hero-points .point:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-points .num{font-size:24px;font-weight:700;color:var(--accent-600);line-height:1.2;}
.hero-points .lab{font-size:13px;color:var(--ink-500);margin-top:2px;}
.media{
  background:var(--img-bg);border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.media:hover img{transform:scale(1.02);}
.media-16-9{aspect-ratio:16/9;}
.media-4-3{aspect-ratio:4/3;}
.media-21-9{aspect-ratio:21/9;}

/* ---------- 图文交错 ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.feature-row + .feature-row{margin-top:80px;}
.feature-row.is-reverse .feature-text{order:2;}
.feature-row.is-reverse .feature-media{order:1;}
.feature-text h3{margin-bottom:14px;}
.feature-text p{max-width:520px;margin-bottom:20px;}
.point-list li{
  position:relative;padding-left:24px;margin-bottom:12px;
  font-size:15px;line-height:1.75;color:var(--ink-700);max-width:520px;
}
.point-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:8px;height:8px;
  border-radius:50%;background:var(--brand-600);
}

/* ---------- 核验速查面板 ---------- */
.panel-dark{
  background:var(--ink-900);border-radius:var(--r-card);
  padding:32px 32px 20px;box-shadow:var(--sh-1);color:#fff;
}
.panel-dark h2{color:#fff;}
.panel-dark .panel-note{font-size:14px;line-height:1.7;color:rgba(255,255,255,.68);margin-top:12px;max-width:620px;}
.check-rows{margin-top:24px;border-top:1px solid rgba(255,255,255,.12);}
.check-row{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:56px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);
}
.check-row:last-child{border-bottom:0;}
.check-row .cond{font-size:15px;color:rgba(255,255,255,.86);}
.check-row .verdict{
  flex:0 0 auto;display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
}
.verdict-ok{background:rgba(15,163,163,.18);color:#5FE0D6;}
.verdict-slow{background:rgba(240,138,36,.18);color:#FFC07A;}
.verdict-stop{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- 风险卡片 ---------- */
.risk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.risk-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.risk-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-100);}
.risk-card h3{font-size:18px;margin-bottom:10px;}
.risk-card p{font-size:14px;line-height:1.72;color:var(--ink-700);}
.risk-card .badge{margin-bottom:14px;}

/* ---------- 汇总卡 ---------- */
.summary-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;box-shadow:var(--sh-1);
}
.summary-card h3{margin-bottom:8px;}
.summary-list{margin-top:22px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;}
.summary-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;border-radius:var(--r-img);background:#FAFCFF;
  font-size:15px;line-height:1.7;color:var(--ink-700);
}
.summary-list li .step-no{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--brand-600);color:#fff;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-left:3px solid var(--brand-600);box-shadow:var(--sh-1);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .sign{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;transition:background .2s ease;
}
.faq-item summary:hover .sign{background:var(--brand-50);}
.faq-item[open] summary .sign{background:var(--brand-100);}
.faq-item .faq-body{padding:0 22px 18px 22px;font-size:15px;line-height:1.8;color:var(--ink-700);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-1);
}
.cta-band h3{font-size:24px;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--ink-700);max-width:620px;}

/* ---------- 页脚 ---------- */
.footer{background:var(--surface);border-top:1px solid var(--line);padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:16px;color:var(--ink-900);}
.footer p{font-size:14px;line-height:1.8;color:var(--ink-700);max-width:360px;}
.footer h4{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:14px;}
.footer li{margin-bottom:10px;}
.footer li a{font-size:14px;color:var(--ink-700);}
.footer li a:hover{color:var(--brand-600);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-500);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 32px;}
  h1{font-size:34px;}
  .risk-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  :root{--sidebar-w:280px;}
  .app-sidebar{
    left:auto;right:0;top:0;bottom:0;width:280px;
    transform:translateX(100%);transition:transform .25s ease;
    box-shadow:var(--sh-2);z-index:60;
  }
  .app-sidebar.is-open{transform:translateX(0);}
  .site-main{margin-left:0;padding-top:56px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero h1{font-size:32px;}
  .feature-row{grid-template-columns:1fr;gap:28px;}
  .feature-row.is-reverse .feature-text{order:1;}
  .feature-row.is-reverse .feature-media{order:2;}
  .feature-row + .feature-row{margin-top:56px;}
  .risk-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .summary-list{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (min-width:1024px){
  .topbar{display:none;}
  .drawer-mask{display:none;}
}
@media (max-width:767px){
  .wrap{padding:0 18px;}
  .section{padding:52px 0;}
  h1{font-size:26px;}
  h2.section-title{font-size:22px;}
  h3{font-size:18px;}
  body{font-size:15px;line-height:1.75;}
  .cat-hero{padding:40px 0 36px;}
  .cat-hero .hero-sub{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-points .point{
    flex:1 1 100%;border-right:0;margin-right:0;padding-right:0;
    padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line);
  }
  .hero-points .point:last-child{border-bottom:0;padding-bottom:0;margin-bottom:0;}
  .risk-grid{grid-template-columns:1fr;}
  .panel-dark{padding:24px 20px 12px;}
  .check-row{flex-direction:column;align-items:flex-start;gap:8px;}
  .summary-card{padding:22px 18px;}
  .faq-item summary{font-size:16px;min-height:52px;padding:14px 18px;}
  .faq-item .faq-body{padding:0 18px 16px 18px;}
  .cta-band{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:360px){
  body{font-size:14px;}
  .wrap{padding:0 16px;}
  h1{font-size:24px;}
}

/* roulang page: category2 */
:root{
  --brand-600:#1E56C8;
  --brand-500:#2F6FEA;
  --brand-700:#16409B;
  --brand-100:#DCE8FF;
  --brand-50:#F1F6FF;
  --accent-600:#F08A24;
  --accent-50:#FFF4E6;
  --teal:#0FA3A3;
  --ink-900:#101B2B;
  --ink-700:#2C3E57;
  --ink-500:#5B6B80;
  --line:#E4EAF3;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --placeholder:#E9EFF8;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,34,64,.04),0 8px 24px rgba(16,34,64,.06);
  --shadow-2:0 12px 32px rgba(16,34,64,.10);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}

/* 顶部导航 */
.topbar{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1240px;
  margin:0 auto;
  padding:0 40px;
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.topbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--ink-900);
  white-space:nowrap;
}
.topbar-brand:hover{color:var(--brand-600)}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:32px;
  padding:0 10px;
  border-radius:8px;
  background:var(--brand-600);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.5px;
}
.topnav{margin-left:auto;display:flex;align-items:center;gap:6px}
.topnav a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
}
.topnav a:hover{background:var(--brand-50);color:var(--brand-600)}
.topnav a.active{
  background:var(--brand-50);
  color:var(--brand-600);
  font-weight:600;
  box-shadow:inset 3px 0 0 var(--brand-600);
}
.hamburger{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.hamburger:hover{border-color:var(--brand-500)}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(16,27,43,.4);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:70;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:280px;
  max-width:86vw;
  background:#fff;
  border-left:1px solid var(--line);
  padding:24px 20px;
  transform:translateX(100%);
  transition:transform .25s ease;
  z-index:80;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink-900)}
.drawer-nav{margin-top:16px;display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:44px;
  padding:0 16px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-700);
}
.drawer-nav a:hover{background:var(--bg);color:var(--ink-900)}
.drawer-nav a.active{
  background:var(--brand-50);
  color:var(--brand-600);
  font-weight:600;
  box-shadow:inset 3px 0 0 var(--brand-600);
}
.drawer-cta{margin-top:24px}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;border:1px solid var(--brand-600)}
.btn-primary:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(30,86,200,.24)}
.btn-primary:active{background:var(--brand-700);border-color:var(--brand-700);transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand-600);border:1px solid var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:var(--brand-100)}
.btn-block{width:100%}

/* 徽章与标签 */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  white-space:nowrap;
}
.badge-brand{background:var(--brand-100);color:var(--brand-700)}
.badge-accent{background:var(--accent-50);color:var(--accent-600)}
.badge-teal{background:#E4F6F6;color:#0B7C7C}

/* 面包屑 */
.crumb{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-500);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-600)}
.crumb .current{color:var(--ink-900)}

/* Hero */
.hero{
  position:relative;
  padding:52px 0 56px;
  background:var(--brand-50);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-position:center right;
  background-size:cover;
  background-repeat:no-repeat;
  opacity:.16;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(241,246,255,.97) 0%,rgba(241,246,255,.82) 46%,rgba(241,246,255,.58) 100%);
}
.hero .wrap{position:relative;z-index:2;text-align:center}
.hero h1{
  font-size:40px;
  line-height:48px;
  font-weight:700;
  max-width:880px;
  margin:0 auto;
}
.hero-sub{
  margin:16px auto 0;
  max-width:720px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
}
.hero-actions{
  margin-top:28px;
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
.hero-stats{
  margin:40px auto 0;
  max-width:820px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
}
.hero-stat{
  padding:0 20px;
  border-left:1px solid rgba(30,86,200,.16);
  text-align:center;
}
.hero-stat:first-child{border-left:none}
.hero-stat strong{
  display:block;
  font-size:28px;
  line-height:36px;
  font-weight:700;
  color:var(--accent-600);
}
.hero-stat span{
  display:block;
  margin-top:4px;
  font-size:13px;
  line-height:20px;
  color:var(--ink-500);
}

/* 板块 */
.section{padding:72px 0}
.section-plain{background:transparent}
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-title{
  position:relative;
  padding-left:16px;
  font-size:28px;
  line-height:36px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  bottom:5px;
  width:4px;
  border-radius:2px;
  background:var(--brand-600);
}
.sec-desc{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-500)}
.sec-head-center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head-center .sec-title{padding-left:0}
.sec-head-center .sec-title::before{display:none}

/* 纵向步骤 */
.timeline{margin-top:8px}
.step{position:relative;padding:0 0 36px 76px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";
  position:absolute;
  left:23px;
  top:54px;
  bottom:2px;
  width:2px;
  background:linear-gradient(180deg,var(--brand-100),var(--line));
}
.step:last-child::before{display:none}
.step-num{
  position:absolute;
  left:0;
  top:0;
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--brand-600);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(30,86,200,.22);
}
.step-body{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-body h3{font-size:20px;line-height:28px;margin-bottom:10px}
.step-body p{font-size:15px;line-height:1.85;color:var(--ink-700)}
.step-figure{
  margin-top:18px;
  max-width:460px;
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--placeholder);
  aspect-ratio:4/3;
}
.step-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.step-body:hover .step-figure img{transform:scale(1.02)}

/* 规格清单 */
.spec{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.spec-row{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:16px;
  align-items:center;
  min-height:44px;
  padding:10px 24px;
  border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:none}
.spec-row:nth-child(even){background:#FAFCFF}
.spec-key{font-size:14px;color:var(--ink-500)}
.spec-val{font-size:15px;color:var(--ink-900);font-weight:500}

/* 横向小卡 */
.mini-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.mini{
  display:grid;
  grid-template-columns:112px 1fr;
  gap:16px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.mini-thumb{
  aspect-ratio:16/10;
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--placeholder);
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.mini:hover .mini-thumb img{transform:scale(1.02)}
.mini h3{font-size:16px;line-height:24px;margin-bottom:6px;color:var(--ink-900)}
.mini:hover h3{color:var(--brand-600)}
.mini p{font-size:13px;line-height:22px;color:var(--ink-500)}

/* 提示条 */
.notice{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--accent-50);
  border:1px solid #F6DFC4;
  border-radius:var(--radius-card);
  padding:20px 24px;
  margin-top:32px;
}
.notice strong{display:block;font-size:15px;color:#A65B10;margin-bottom:4px}
.notice p{font-size:14px;line-height:1.8;color:#8A5A22}

/* FAQ */
.faq{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item[open]{border-left:3px solid var(--brand-600);box-shadow:var(--shadow-1)}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:18px 24px;
  min-height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--brand-600);
  flex-shrink:0;
}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--brand-600)}
.faq-answer{padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--ink-700)}

/* CTA 通栏 */
.cta-band{
  background:var(--brand-50);
  border:1px solid var(--line);
  border-radius:18px;
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:24px;line-height:32px;margin-bottom:8px}
.cta-band p{font-size:15px;line-height:1.8;color:var(--ink-700)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:16px;color:var(--ink-900)}
.footer h4{font-size:15px;margin-bottom:14px}
.footer li{margin-bottom:10px}
.footer li a{font-size:14px;color:var(--ink-700)}
.footer li a:hover{color:var(--brand-600)}
.footer p{font-size:14px;line-height:1.85;color:var(--ink-500)}
.footer-grid > div > p{max-width:340px}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-500);
}

/* 响应式 */
@media (max-width:1279px){
  .wrap{padding:0 32px}
  .topbar-inner{padding:0 32px}
  .mini-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:1023px){
  .topnav{display:none}
  .hamburger{display:flex}
  .hero h1{font-size:32px;line-height:42px}
  .hero-stat strong{font-size:24px;line-height:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-grid > div > p{max-width:none}
}
@media (max-width:767px){
  .wrap{padding:0 24px}
  .topbar-inner{padding:0 24px;gap:12px}
  .topbar-brand span:last-child{font-size:15px}
  .section{padding:48px 0}
  .hero{padding:36px 0 40px}
  .hero h1{font-size:28px;line-height:38px}
  .hero-actions .btn{flex:1 1 180px}
  .hero-stats{grid-template-columns:1fr;gap:16px;margin-top:28px}
  .hero-stat{border-left:none;border-top:1px solid rgba(30,86,200,.16);padding-top:14px}
  .hero-stat:first-child{border-top:none;padding-top:0}
  .sec-title{font-size:22px;line-height:32px}
  .step{padding-left:56px;padding-bottom:28px}
  .step-num{width:38px;height:38px;font-size:13px}
  .step::before{left:18px;top:44px}
  .step-body{padding:18px 18px}
  .step-body h3{font-size:18px;line-height:26px}
  .spec-row{grid-template-columns:1fr;gap:2px;padding:12px 18px}
  .mini-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 160px}
  .footer{padding:40px 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .topbar-inner{padding:0 16px}
  .topbar-brand span:last-child{font-size:14px}
  body{font-size:15px;line-height:1.75}
  .hero h1{font-size:26px;line-height:36px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .mini{grid-template-columns:96px 1fr;gap:12px;padding:14px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px}
  .section{padding:40px 0}
}
@media (max-width:360px){
  .wrap{padding:0 14px}
  .topbar-inner{padding:0 14px}
  .brand-mark{height:28px;padding:0 8px;font-size:12px}
  .step{padding-left:50px}
  .step-num{width:34px;height:34px}
  .step::before{left:16px}
}