/* roulang page: index */
:root{
  --brand:#1B62D6;
  --brand-dark:#12439A;
  --brand-light:#E8F0FE;
  --teal:#12A594;
  --teal-light:#E4F6F3;
  --orange:#FF7A2F;
  --orange-dark:#E8661C;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --soft:#EEF3FA;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#93A2B8;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 6px 20px rgba(23,45,90,.06);
  --shadow-hover:0 14px 32px rgba(23,45,90,.12);
  --max:1200px;
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
h1{font-size:38px;line-height:1.28;font-weight:700;letter-spacing:.2px}
h2{font-size:28px;line-height:1.35;font-weight:700}
h3{font-size:19px;line-height:1.5;font-weight:600}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 40px}
.section{padding:104px 0}
.section.soft{background:var(--soft)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--text-2);font-size:15px;margin-top:14px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand);background:var(--brand-light);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;font-weight:600;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;padding:6px 14px;border-radius:999px;
  background:var(--teal-light);color:#0C7C70;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-weight:600;
}
.badge.teal{background:var(--teal-light);color:#0C7C70}
.badge.plain{background:#F1F5FB;color:var(--text-2)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(27,98,214,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(27,98,214,.3)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(27,98,214,.24)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7D8F5}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-accent{background:var(--orange);color:#fff;border-radius:999px;box-shadow:0 8px 18px rgba(255,122,47,.28)}
.btn-accent:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.link-more{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px;color:var(--brand-dark)}
.link-more i{transition:transform var(--ease)}
.btn[disabled],.btn.is-disabled{background:#AAB6C6;border-color:#AAB6C6;color:#fff;box-shadow:none;pointer-events:none}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 8px 22px rgba(23,45,90,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height var(--ease)}
.site-header.is-scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text);white-space:nowrap}
.logo:hover{color:var(--brand)}
.logo-ring{width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:var(--brand-light);display:inline-flex;align-items:center;justify-content:center}
.logo-ring svg{width:20px;height:20px}
.logo-short{display:none}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;font-size:14px;color:var(--text-2);padding:10px 12px;border-radius:10px;font-weight:500;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--brand);background:#F7FAFF}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);
}
.icon-btn:hover{color:var(--brand);border-color:#C7D8F5;background:#F7FAFF}

/* 移动端底部 Tab */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(23,45,90,.06);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.mobile-tab ul{display:flex;align-items:stretch;justify-content:space-between;margin:0}
.mobile-tab li{flex:1;text-align:center}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11px;color:var(--text-3);padding:6px 2px;border-radius:10px;
}
.mobile-tab a i{font-size:19px;line-height:1;color:inherit}
.mobile-tab a::before{
  content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:3px;border-radius:2px;background:var(--brand);transition:transform .18s ease;
}
.mobile-tab a:hover{color:var(--brand)}
.mobile-tab a.active{color:var(--brand);font-weight:600}
.mobile-tab a.active::before{transform:translateX(-50%) scaleX(1)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F7FAFF 0%,var(--bg) 100%)}
.hero::before{
  content:"";position:absolute;right:-160px;top:-140px;width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(27,98,214,.09);
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-20px;width:360px;height:360px;border-radius:50%;
  border:1px solid rgba(18,165,148,.1);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:88px 0 96px}
.hero h1{margin:18px 0 20px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 22px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px;box-shadow:var(--shadow);
}
.hero-stats .num{font-size:20px;font-weight:700;color:var(--brand-dark);line-height:1.3}
.hero-stats .lbl{font-size:12px;color:var(--text-3)}
.hero-stats .cell{text-align:center}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step{position:relative;padding:0 22px;text-align:left}
.step:first-child{padding-left:0}
.step:last-child{padding-right:0}
.step-node{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid #CBDCF7;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;position:relative;z-index:2;
}
.step.done .step-node{background:var(--teal);border-color:var(--teal);color:#fff}
.step-line{position:absolute;left:44px;right:-22px;top:22px;height:1px;border-top:1px dashed #C7D8F5;z-index:1}
.step:last-child .step-line{display:none}
.step h3{margin:18px 0 8px;font-size:17px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

/* 能力网格 */
.feature-grid{display:grid;grid-template-columns:1.5fr 1fr;grid-template-rows:auto auto;gap:24px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  box-shadow:var(--shadow);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:#CBDCF7}
.feature-card.wide{grid-row:span 2;gap:18px}
.feature-card.wide img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sm);margin-top:auto}
.feature-ico{
  width:46px;height:46px;border-radius:14px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;
}
.feature-card.teal .feature-ico{background:var(--teal-light);color:#0C7C70}
.feature-card h3{font-size:19px}
.feature-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* 权益横滑带 */
.reward-band{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.reward-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
  box-shadow:var(--shadow);transition:box-shadow var(--ease),transform var(--ease);
}
.reward-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.reward-card .lv{position:absolute;right:18px;top:18px}
.reward-value{font-size:34px;font-weight:700;color:var(--orange);line-height:1.2;letter-spacing:.5px}
.reward-value span{font-size:15px;color:var(--text-2);font-weight:500;margin-left:6px}
.reward-card h3{margin:8px 0 10px;font-size:18px}
.reward-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.reward-foot{display:flex;align-items:center;gap:16px;margin-top:28px;flex-wrap:wrap}
.reward-foot .hint{font-size:13px;color:var(--text-3)}

/* 进度里程碑 */
.progress-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.progress-bar{position:relative;height:8px;border-radius:999px;background:#E6EEFA;margin:38px 0 0}
.progress-bar span{position:absolute;left:0;top:0;bottom:0;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--orange))}
.milestones{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:-16px}
.milestone{text-align:center;position:relative}
.milestone .dot{
  width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid #C7D8F5;margin:0 auto 12px;
}
.milestone.done .dot{background:var(--teal);border-color:var(--teal)}
.milestone.current .dot{background:var(--orange);border-color:#FFD3BA;box-shadow:0 0 0 5px rgba(255,122,47,.14)}
.milestone .mt{font-size:13.5px;font-weight:600;color:var(--text)}
.milestone .ms{font-size:12px;color:var(--text-3)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px;padding-top:28px;border-top:1px solid var(--line)}
.stat-row .num{font-size:24px;font-weight:700;color:var(--brand-dark)}
.stat-row .lbl{font-size:13px;color:var(--text-2)}

/* 资讯列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.post-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:#CBDCF7}
.post-card h3{font-size:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .excerpt{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.post-meta .date{color:var(--text-2)}
.post-meta .arrow{margin-left:auto;color:var(--brand)}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);color:var(--text-2);font-size:14px;
}
.empty-ring{width:74px;height:74px;border-radius:50%;border:1px solid rgba(27,98,214,.18);position:relative;display:flex;align-items:center;justify-content:center;color:var(--brand);background:var(--brand-light)}
.empty-ring::after{content:"";position:absolute;inset:12px;border-radius:50%;border:1px dashed rgba(27,98,214,.28)}

/* 评价 */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.review-card p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.review-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-light);color:var(--brand-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 40px}
.avatar.t2{background:var(--teal-light);color:#0C7C70}
.avatar.t3{background:#FFF1E7;color:var(--orange-dark)}
.review-user .name{font-size:14px;font-weight:600}
.review-user .role{font-size:12px;color:var(--text-3)}
.stars{color:var(--orange);font-size:13px;letter-spacing:2px}
.avatar-group{display:flex;align-items:center;gap:-8px}
.avatar-group .avatar{margin-right:-10px;border:2px solid #fff}
.avatar-group .count{font-size:13px;color:var(--text-2);margin-left:20px}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq-item[open]{border-color:#CBDCF7}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:56px;padding:14px 22px;font-size:15.5px;font-weight:600;color:var(--text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:transparent;transition:background var(--ease)}
.faq-item[open] summary::before{background:var(--brand)}
.faq-item summary .sign{margin-left:auto;color:var(--brand);font-size:16px;transition:transform var(--ease)}
.faq-item[open] summary .sign{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-item summary:hover{color:var(--brand)}

/* CTA 条 */
.cta-band{
  background:#fff;border:1px solid #CBDCF7;border-radius:20px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;padding:44px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(27,98,214,.12);
}
.cta-band h2{font-size:26px;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:15px}
.cta-actions{display:flex;flex-direction:column;gap:16px;position:relative;z-index:2}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form input{
  flex:1;min-width:200px;height:46px;border-radius:var(--radius-sm);border:1px solid var(--line);
  padding:0 16px;font-size:14px;background:#fff;
}
.inline-form input::placeholder{color:var(--text-3)}
.inline-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,98,214,.14)}
.form-note{font-size:12.5px;color:var(--text-3)}
.required{color:var(--orange);margin-left:2px}

/* 页脚 */
.site-footer{background:var(--soft);border-top:1px solid var(--line);margin-top:0;position:relative;overflow:hidden}
.site-footer::after{
  content:"";position:absolute;left:-120px;bottom:-160px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(27,98,214,.08);
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:var(--text-2);max-width:280px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-col .contact-line{font-size:13.5px;color:var(--text-2);margin-bottom:10px;display:flex;gap:8px;align-items:flex-start}
.footer-col .contact-line i{color:var(--brand);margin-top:5px;font-size:13px}
.footer-bar{
  position:relative;z-index:2;border-top:1px solid var(--line);padding:18px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:var(--text-3);
}

@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .main-nav{display:none}
  .nav-actions .btn{display:none}
  .logo-full{display:none}
  .logo-short{display:inline}
  .logo{font-size:16px}
  .mobile-tab{display:block}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .steps{grid-template-columns:1fr 1fr;gap:28px}
  .step{padding:0}
  .step-line{display:none}
  .feature-grid{grid-template-columns:1fr 1fr}
  .feature-card.wide{grid-column:span 2;grid-row:auto}
  .reward-band{grid-template-columns:1fr 1fr;overflow-x:auto}
  .post-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:640px){
  h1{font-size:26px;line-height:1.35}
  h2{font-size:21px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero-inner{padding:40px 0 52px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr;gap:14px}
  .hero-stats .cell{display:flex;align-items:baseline;justify-content:space-between;text-align:left;padding-bottom:12px;border-bottom:1px solid var(--line)}
  .hero-stats .cell:last-child{border-bottom:none;padding-bottom:0}
  .steps{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.wide{grid-column:auto}
  .reward-band{grid-template-columns:1fr;overflow:visible}
  .milestones{grid-template-columns:1fr 1fr;gap:22px}
  .progress-bar{margin-top:24px}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bar{flex-direction:column;gap:8px}
  .cta-band{padding:26px 20px}
  .progress-block{padding:24px 20px}
}

/* roulang page: article */
:root{
  --blue:#1B62D6;
  --blue-deep:#12439A;
  --blue-light:#E8F0FE;
  --teal:#12A594;
  --teal-light:#E4F6F3;
  --orange:#FF7A2F;
  --orange-deep:#E8661C;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --block:#EEF3FA;
  --ink:#17233A;
  --ink-2:#5A6B85;
  --ink-3:#93A2B8;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:12px;
  --shadow-card:0 6px 20px rgba(23,45,90,.06);
  --shadow-hover:0 14px 32px rgba(23,45,90,.12);
  --t:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--blue)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.4}
p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:639px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(244,247,251,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 4px 16px rgba(23,45,90,.06);
}
.nav-wrap{display:flex;align-items:center;gap:32px;height:76px;transition:height var(--t)}
.site-header.is-scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-ring{width:30px;height:30px;flex:0 0 30px;display:inline-flex;align-items:center;justify-content:center;background:var(--blue-light);border-radius:50%}
.logo-ring svg{width:20px;height:20px}
.logo-short{display:none}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue);
  border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.main-nav a:hover{color:var(--blue)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--blue);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:all var(--t);
}
.icon-btn:hover{color:var(--blue);border-color:var(--blue);background:var(--blue-light);transform:translateY(-1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:10px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(27,98,214,.22)}
.btn-primary:hover{background:var(--blue-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(27,98,214,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn-ghost:hover{background:var(--blue-light);color:var(--blue-deep)}
.btn-accent{background:var(--orange);color:#fff;border-radius:999px;box-shadow:0 6px 16px rgba(255,122,47,.24)}
.btn-accent:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,122,47,.3)}
.btn-accent:active{transform:translateY(0)}

/* ============ 移动底部 Tab ============ */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(23,45,90,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr)}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 2px 8px;font-size:11px;color:var(--ink-3);transition:color var(--t);
}
.tabbar a i{font-size:19px;line-height:1}
.tabbar a::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--blue);transition:transform var(--t);
}
.tabbar a.active{color:var(--blue);font-weight:600}
.tabbar a.active::before{transform:translateX(-50%) scaleX(1)}

/* ============ 页面主体 ============ */
.page-main{padding:28px 0 96px}
.crumbs{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--blue)}
.crumbs .sep{color:#C6D2E3}
.crumbs .current{color:var(--ink-2)}

.article-shell{max-width:820px;margin:0 auto}
.article-head{margin-bottom:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--teal-light);color:var(--teal);
}
.article-head h1{
  font-size:40px;line-height:1.25;font-weight:700;margin:14px 0 16px;letter-spacing:-.2px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:13px;color:var(--ink-3)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row i{color:var(--blue);font-size:13px}

.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:48px;
}
.panel + .panel{margin-top:24px}

.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em;color:#2B3A55}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;margin:36px 0 16px;padding-left:14px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--blue);
}
.article-body h3{font-size:18px;font-weight:600;margin:26px 0 12px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:8px;color:#2B3A55}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--blue);
}
.article-body ol{counter-reset:ol}
.article-body ol li::before{
  counter-increment:ol;content:counter(ol);position:absolute;left:0;top:.35em;
  width:16px;height:16px;border-radius:50%;background:var(--blue-light);color:var(--blue-deep);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:0 0 1.1em;padding:16px 20px;background:var(--blue-light);border-left:3px solid var(--blue);
  border-radius:0 12px 12px 0;color:var(--blue-deep);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:20px 0;width:100%;border-radius:var(--radius-img)}
.article-body code{
  background:var(--block);padding:2px 7px;border-radius:6px;font-size:14px;
  font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--blue-deep);
}
.article-body pre{
  background:var(--block);border-radius:12px;padding:18px 20px;overflow-x:auto;margin:0 0 1.1em;
}
.article-body pre code{background:none;padding:0}
.article-body a{color:var(--blue);border-bottom:1px solid rgba(27,98,214,.32)}
.article-body a:hover{color:var(--blue-deep);border-bottom-color:var(--blue-deep)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.1em;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--block);font-weight:600}

.empty-state{text-align:center;padding:26px 0 8px}
.empty-ring{
  width:88px;height:88px;margin:0 auto 20px;border-radius:50%;
  background:var(--blue-light);display:flex;align-items:center;justify-content:center;
}
.empty-ring svg{width:52px;height:52px}
.empty-state h2{font-size:21px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:20px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--ink-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;background:var(--blue-light);color:var(--blue-deep);transition:all var(--t);
}
.tag:hover{background:var(--blue);color:#fff}

.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14px;font-weight:600;color:var(--blue);
}
.back-link:hover{gap:12px;color:var(--blue-deep)}

/* ============ 相关推荐 ============ */
.section{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:28px;line-height:1.35}
.section-head .more{font-size:14px;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--blue-deep);gap:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCF8;color:inherit}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--blue-light)}
.card-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--t)}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);
}
.card-meta .arrow{color:var(--blue);transition:transform var(--t)}
.card:hover .card-meta .arrow{transform:translateX(4px)}

/* ============ CTA ============ */
.cta-bar{
  margin-top:56px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  background-image:radial-gradient(circle at 100% 0,rgba(27,98,214,.07) 0,rgba(27,98,214,.07) 130px,transparent 131px);
}
.cta-bar h2{font-size:24px;margin-bottom:8px}
.cta-bar p{font-size:15px;color:var(--ink-2)}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{background:var(--block);border-top:1px solid var(--line);padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{font-size:16px;margin-bottom:14px}
.footer-brand p{font-size:13px;color:var(--ink-2);line-height:1.8;max-width:280px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13px;color:var(--ink-2)}
.footer-col ul li a:hover{color:var(--blue)}
.contact-line{font-size:13px;color:var(--ink-2);margin-bottom:10px;display:flex;align-items:flex-start;gap:8px}
.contact-line i{color:var(--blue);margin-top:5px}
.footer-bar{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .main-nav{display:none}
  .tabbar{display:block}
  .page-main{padding-bottom:96px}
  .panel{padding:32px 26px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .logo-full{display:none}
  .logo-short{display:inline}
  .article-head h1{font-size:27px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:30px}
  .section-head h2{font-size:21px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}
@media (max-width:639px){
  .page-main{padding-top:18px;padding-bottom:104px}
  .panel{padding:24px 18px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bar{flex-direction:column;gap:6px}
  .nav-actions .btn-accent{display:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B62D6;
  --c-primary-deep:#12439A;
  --c-primary-soft:#E8F0FE;
  --c-teal:#12A594;
  --c-teal-soft:#E4F6F3;
  --c-accent:#FF7A2F;
  --c-accent-deep:#E8661C;
  --c-bg:#F4F7FB;
  --c-surface:#FFFFFF;
  --c-block:#EEF3FA;
  --c-line:#E3EAF3;
  --c-text:#17233A;
  --c-text-sub:#5A6B85;
  --c-text-weak:#93A2B8;
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 6px 20px rgba(23,45,90,.06);
  --sh-card-hover:0 14px 32px rgba(23,45,90,.12);
  --sh-header:0 6px 18px rgba(23,45,90,.08);
  --gap-section:104px;
  --gap-section-m:60px;
  --maxw:1200px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;background:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
svg{display:block;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 40px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--c-line);
  transition:height var(--ease), box-shadow var(--ease), background var(--ease);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-header);background:rgba(255,255,255,.98);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--c-text);
  white-space:nowrap;
}
.logo:hover{color:var(--c-primary);}
.logo-ring{width:28px;height:28px;flex:0 0 28px;}
.logo-ring svg{width:28px;height:28px;}
.logo-short{display:none;}

.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
  justify-content:center;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--c-text-sub);
  border-radius:8px;
  line-height:1.4;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after,
.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  color:var(--c-text-sub);
  background:#fff;
  transition:all var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:#c7d9f5;background:var(--c-primary-soft);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-pill{border-radius:var(--r-pill);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(18,67,154,.22);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#c7d9f5;}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(232,102,28,.24);}
.btn-accent:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  font-size:12px;
  line-height:1;
  border-radius:var(--r-pill);
  background:var(--c-teal-soft);
  color:var(--c-teal);
  white-space:nowrap;
}
.badge-blue{background:var(--c-primary-soft);color:var(--c-primary);}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-text-sub);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--c-text-weak);
  margin-bottom:14px;
}
.crumb a{color:var(--c-text-weak);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:#c3cfdd;}
.crumb span.current{color:var(--c-text-sub);}

/* ============ 页面 Banner ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--c-block);
  border-bottom:1px solid var(--c-line);
}
.page-banner .banner-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.20;
}
.page-banner .banner-ring{
  position:absolute;
  right:-120px;
  top:-90px;
  width:460px;
  height:460px;
  border:1.5px solid rgba(27,98,214,.14);
  border-radius:50%;
  pointer-events:none;
}
.page-banner .banner-ring::after{
  content:"";
  position:absolute;
  inset:78px;
  border:1.5px solid rgba(18,165,148,.16);
  border-radius:50%;
}
.banner-inner{
  position:relative;
  padding:52px 0 56px;
  max-width:820px;
}
.page-banner h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.4px;
  margin-bottom:14px;
}
.page-banner .banner-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--c-text-sub);
  max-width:700px;
}
.page-banner .tag-row{margin-top:20px;}

/* ============ 区块通用 ============ */
.section{padding:var(--gap-section) 0;}
.section-tight{padding:64px 0;}
.section-block{background:var(--c-block);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  margin-bottom:12px;
}
.section-head p{color:var(--c-text-sub);font-size:16px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1.4px;
  color:var(--c-teal);
  font-weight:600;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;background:var(--c-teal);
}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.stat-item{background:#fff;padding:26px 24px;}
.stat-item .num{
  font-size:26px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.2;
  letter-spacing:-.5px;
}
.stat-item .num em{font-style:normal;font-size:15px;color:var(--c-text-sub);font-weight:600;margin-left:2px;}
.stat-item .label{margin-top:6px;font-size:13px;color:var(--c-text-sub);line-height:1.6;}

/* ============ 图文左右 ============ */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--c-line);
}
.feature-row:first-of-type{padding-top:0;}
.feature-row:last-of-type{border-bottom:0;padding-bottom:0;}
.feature-row.reverse .feature-media{order:2;}
.feature-row.reverse .feature-body{order:1;}
.feature-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
  background:rgba(27,98,214,.06);
}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform 220ms cubic-bezier(.4,0,.2,1);
}
.feature-media:hover img{transform:translateY(-4px);}
.feature-media .media-cap{
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(255,255,255,.92);
  border-radius:var(--r-pill);
  padding:6px 14px;
  font-size:12px;
  color:var(--c-text-sub);
}
.feature-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.5;
  margin-bottom:14px;
}
.feature-body p{color:var(--c-text-sub);font-size:15px;line-height:1.85;margin-bottom:16px;}
.check-list{display:grid;gap:10px;margin-bottom:20px;}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--c-text-sub);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:14px;height:14px;
  border-radius:50%;
  border:1.5px solid var(--c-teal);
  background:var(--c-teal-soft);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:5px;top:13px;
  width:4px;height:4px;
  border-radius:50%;
  background:var(--c-teal);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.text-link i{font-size:12px;transition:transform var(--ease);}
.text-link:hover i{transform:translateX(3px);}

/* ============ 步骤流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  position:relative;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 24px 26px;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:#c7d9f5;}
.step .step-no{
  width:38px;height:38px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-weight:700;
  font-size:15px;
  margin-bottom:16px;
}
.step h4{font-size:17px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-text-sub);line-height:1.75;}
.steps::before{
  content:"";
  position:absolute;
  left:6%;
  right:6%;
  top:49px;
  height:1px;
  background:repeating-linear-gradient(90deg,rgba(27,98,214,.35) 0 8px,transparent 8px 16px);
  z-index:0;
}
.steps .step{z-index:1;}

/* ============ FAQ ============ */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:#c7d9f5;box-shadow:var(--sh-card-hover);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 22px;
  min-height:58px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-primary);
  transform:scaleY(0);
  transition:transform var(--ease);
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item summary .pm{
  flex:0 0 22px;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid #c7d9f5;
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  line-height:1;
  transition:all var(--ease);
}
.faq-item[open] summary .pm{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.faq-item summary:hover{color:var(--c-primary);}
.faq-body{
  padding:0 44px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-sub);
  animation:fadeUp 200ms ease-out both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* ============ 延伸入口 ============ */
.entry-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.entry-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--c-primary-soft);
  border:1px solid #d5e3fa;
  border-radius:var(--r-card);
  padding:26px 24px;
  color:var(--c-text);
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.entry-card:hover{transform:translateY(-4px);background:#dde9fd;border-color:#bcd3f7;color:var(--c-text);}
.entry-card h4{font-size:17px;font-weight:700;}
.entry-card p{font-size:14px;color:var(--c-text-sub);line-height:1.75;}
.entry-card .go{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
}

/* ============ CTA ============ */
.cta-band{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-70px;bottom:-110px;
  width:280px;height:280px;
  border:1.5px solid rgba(27,98,214,.12);
  border-radius:50%;
  pointer-events:none;
}
.cta-band h2{font-size:24px;font-weight:700;margin-bottom:8px;line-height:1.4;}
.cta-band p{font-size:15px;color:var(--c-text-sub);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-block);
  border-top:1px solid var(--c-line);
  margin-top:0;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:-140px;top:-160px;
  width:380px;height:380px;
  border:1.5px solid rgba(27,98,214,.10);
  border-radius:50%;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding:60px 0 40px;
}
.footer-brand p{
  margin-top:14px;
  font-size:13px;
  line-height:1.85;
  color:var(--c-text-sub);
  max-width:280px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--c-text);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:13px;color:var(--c-text-sub);}
.footer-col a:hover{color:var(--c-primary);}
.contact-line{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:13px;
  color:var(--c-text-sub);
  line-height:1.7;
  margin-bottom:11px;
}
.contact-line i{color:var(--c-primary);margin-top:4px;font-size:13px;}
.footer-bar{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding:18px 0 22px;
  border-top:1px solid var(--c-line);
  font-size:12.5px;
  color:var(--c-text-weak);
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  background:#fff;
  border-top:1px solid var(--c-line);
  box-shadow:0 -6px 18px rgba(23,45,90,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar ul{
  display:grid;
  grid-template-columns:repeat(5,1fr);
}
.mobile-tabbar a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  padding:9px 2px 8px;
  font-size:11px;
  color:var(--c-text-weak);
  line-height:1.3;
  text-align:center;
}
.mobile-tabbar a i{font-size:19px;}
.mobile-tabbar a.active{color:var(--c-primary);}
.mobile-tabbar a.active::before{
  content:"";
  position:absolute;
  top:0;
  width:22px;height:3px;
  border-radius:0 0 3px 3px;
  background:var(--c-primary);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  :root{--gap-section:76px;}
  .main-nav{gap:0;}
  .main-nav a{padding:9px 8px;font-size:14px;}
  .logo-full{font-size:16px;}
  .page-banner h1{font-size:32px;}
  .banner-inner{padding:42px 0 46px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .feature-row{gap:36px;padding:36px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-band{padding:34px 30px;}
}

@media screen and (max-width:768px){
  :root{--gap-section:56px;}
  .main-nav{display:none;}
  .nav-actions .btn{display:none;}
  .logo-full{display:none;}
  .logo-short{display:inline;}
  .nav-wrap{height:60px;}
  .site-header.is-scrolled .nav-wrap{height:56px;}
  .mobile-tabbar{display:block;}
  body{padding-bottom:72px;}
  .page-banner h1{font-size:27px;line-height:1.35;}
  .page-banner .banner-sub{font-size:15px;}
  .banner-inner{padding:32px 0 36px;}
  .page-banner .banner-ring{width:280px;height:280px;right:-120px;top:-60px;}
  .section-head h2{font-size:21px;}
  .section-head{margin-bottom:28px;}
  .feature-row{grid-template-columns:1fr;gap:22px;padding:26px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-row.reverse .feature-body{order:0;}
  .faq-list{grid-template-columns:1fr;}
  .entry-cards{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:stretch;padding:28px 22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px;}
  .footer-bar{font-size:12px;padding:14px 0 18px;}
}

@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .stat-strip{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .page-banner h1{font-size:24px;}
  .stat-item{padding:20px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B62D6;
  --c-primary-dark:#12439A;
  --c-primary-light:#E8F0FE;
  --c-teal:#12A594;
  --c-teal-light:#E4F6F3;
  --c-accent:#FF7A2F;
  --c-accent-dark:#E8661C;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --band:#EEF3FA;
  --t1:#17233A;
  --t2:#5A6B85;
  --t3:#93A2B8;
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --sh1:0 6px 20px rgba(23,45,90,.06);
  --sh2:0 14px 32px rgba(23,45,90,.12);
  --max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.35;color:var(--t1);}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{max-width:var(--max);margin:0 auto;padding:0 40px;width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease),height .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,45,90,.08);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:76px;transition:height .2s var(--ease);}
.site-header.is-scrolled .nav-wrap{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--t1);letter-spacing:.2px;}
.logo:hover{color:var(--c-primary);}
.logo-ring{width:30px;height:30px;flex:0 0 30px;display:inline-flex;align-items:center;justify-content:center;background:var(--c-primary-light);border-radius:9px;}
.logo-ring svg{width:20px;height:20px;}
.logo-short{display:none;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--t2);border-radius:10px;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.main-nav a:hover{color:var(--c-primary);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;color:var(--t2);background:#fff;transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-light);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;transition:all .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,67,154,.22);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-accent{background:var(--c-accent);color:#fff;border-radius:999px;}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(232,102,28,.24);}
.btn-accent:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- Banner ---------- */
.cat-banner{
  position:relative;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(244,247,251,.88),rgba(244,247,251,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-banner::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.14);
}
.cat-banner::before{
  content:"";position:absolute;right:40px;bottom:-160px;width:280px;height:280px;border-radius:50%;
  border:1.5px solid rgba(18,165,148,.16);
}
.banner-inner{position:relative;z-index:2;padding:56px 0 60px;max-width:760px;}
.breadcrumb{font-size:13px;color:var(--t3);margin-bottom:12px;}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{margin:0 6px;color:var(--t3);}
.breadcrumb .current{color:var(--t2);}
.cat-banner h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.4px;}
.banner-sub{margin-top:16px;font-size:17px;line-height:1.85;color:var(--t2);max-width:640px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;background:var(--c-teal-light);color:#0C7F72;white-space:nowrap;
}
.tag-blue{background:var(--c-primary-light);color:var(--c-primary-dark);}
.tag-plain{background:#fff;color:var(--t2);border:1px solid var(--line);}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0;}
.sec-band{background:var(--band);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{font-size:28px;}
.sec-head p{margin-top:14px;color:var(--t2);font-size:16px;}
.sec-head-center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:1px;
  color:var(--c-primary);background:var(--c-primary-light);border-radius:999px;padding:5px 12px;margin-bottom:16px;
}

/* ---------- 话题分区卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  height:100%;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:#C9DCFA;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-light);}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .22s var(--ease);}
.card:hover .card-media img{transform:translateY(-4px);}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;}
.card-body p{margin-top:10px;font-size:14.5px;color:var(--t2);line-height:1.8;flex:1;}
.card-meta{margin-top:18px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t3);}
.card-link{margin-left:auto;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.card-link i{transition:transform .18s var(--ease);}
.card:hover .card-link i{transform:translateX(4px);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;top:19px;left:9%;right:9%;height:2px;background:var(--line);z-index:0;
}
.tl-item{position:relative;z-index:1;padding:0 14px;}
.tl-node{
  width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--t3);
  transition:all .18s var(--ease);
}
.tl-item.is-done .tl-node{background:var(--c-teal);border-color:var(--c-teal);color:#fff;}
.tl-item.is-active .tl-node{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 0 0 6px var(--c-primary-light);}
.tl-body{margin-top:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh1);min-height:170px;}
.tl-body h3{font-size:17px;}
.tl-body p{margin-top:10px;font-size:14px;color:var(--t2);line-height:1.8;}
.tl-state{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;margin-top:14px;background:var(--band);color:var(--t2);}
.tl-item.is-done .tl-state{background:var(--c-teal-light);color:#0C7F72;}
.tl-item.is-active .tl-state{background:var(--c-primary-light);color:var(--c-primary-dark);}

/* ---------- 统计条 ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh1);
}
.stat .num{font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat .num em{font-style:normal;font-size:15px;color:var(--t3);margin-left:4px;font-weight:500;}
.stat .lbl{margin-top:8px;font-size:14px;color:var(--t2);}

/* ---------- 排行列表 ---------- */
.rank-wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start;}
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;}
.rank-item{display:flex;align-items:center;gap:16px;padding:18px 22px;border-bottom:1px solid var(--line);transition:background .18s var(--ease);}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:#F9FBFE;}
.rank-no{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;background:var(--c-primary-light);color:var(--c-primary-dark);
}
.rank-item:nth-child(2) .rank-no{background:var(--c-teal-light);color:#0C7F72;}
.rank-main{flex:1;min-width:0;}
.rank-main h3{font-size:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.rank-main .sub{margin-top:4px;font-size:13px;color:var(--t3);}
.count-badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:999px;
  background:var(--band);color:var(--t2);font-size:12px;white-space:nowrap;
}
.tag-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh1);}
.tag-panel h3{font-size:18px;}
.tag-panel .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tag-panel p{margin-top:18px;font-size:14px;color:var(--t2);line-height:1.8;}

/* ---------- 参与步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh1);position:relative;transition:transform .18s var(--ease),box-shadow .18s var(--ease);}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.step .step-no{
  width:38px;height:38px;border-radius:50%;background:var(--c-primary-light);color:var(--c-primary-dark);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.step h3{margin-top:18px;font-size:18px;}
.step p{margin-top:10px;font-size:14.5px;color:var(--t2);line-height:1.8;}
.avatar-row{display:flex;align-items:center;gap:12px;margin-top:32px;flex-wrap:wrap;}
.avatars{display:flex;}
.avatar{
  width:38px;height:38px;border-radius:50%;border:2px solid #fff;margin-left:-10px;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:#fff;
  background:var(--c-primary);
}
.avatars .avatar:first-child{margin-left:0;}
.avatar:nth-child(2){background:var(--c-teal);}
.avatar:nth-child(3){background:#5A8DEE;}
.avatar:nth-child(4){background:#0F8E80;}
.avatar:nth-child(5){background:var(--c-primary-dark);}
.avatar-note{font-size:14px;color:var(--t2);}

/* ---------- 守则列表 ---------- */
.rules{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.rule{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.rule:hover{border-color:#C9DCFA;box-shadow:var(--sh2);}
.rule i{font-size:18px;color:var(--c-teal);margin-top:4px;}
.rule h3{font-size:16.5px;}
.rule p{margin-top:8px;font-size:14px;color:var(--t2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;
  box-shadow:var(--sh1);overflow:hidden;position:relative;transition:border-color .18s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .18s var(--ease);
}
.faq-item.open{border-color:#C9DCFA;}
.faq-item.open::before{background:var(--c-primary);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;gap:16px;padding:12px 22px;
  background:none;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
}
.faq-q .plus{
  margin-left:auto;flex:0 0 22px;width:22px;height:22px;position:relative;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.open .faq-q .plus::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--t2);}

/* ---------- 延伸入口 ---------- */
.next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.next-card{
  display:block;background:var(--c-primary-light);border:1px solid #D5E3FB;border-radius:var(--r-card);
  padding:24px;transition:background .18s var(--ease),transform .18s var(--ease);
}
.next-card:hover{background:#DCE9FD;transform:translateY(-3px);}
.next-card h3{font-size:17px;color:var(--c-primary-dark);}
.next-card p{margin-top:10px;font-size:14px;color:var(--t2);line-height:1.8;}
.next-card .go{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-primary-dark);}
.next-card:hover .go i{transform:translateX(4px);}
.next-card .go i{transition:transform .18s var(--ease);}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  display:flex;align-items:center;gap:32px;background:#fff;border:1px solid var(--line);
  border-radius:22px;padding:40px 44px;box-shadow:var(--sh1);position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:240px;height:240px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.14);
}
.cta-text{position:relative;z-index:2;flex:1;}
.cta-text h2{font-size:26px;}
.cta-text p{margin-top:12px;font-size:15px;color:var(--t2);}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--band);border-top:1px solid var(--line);padding:64px 0 0;position:relative;overflow:hidden;}
.site-footer::after{
  content:"";position:absolute;left:-120px;bottom:-140px;width:340px;height:340px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.10);
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px;}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--t2);line-height:1.8;max-width:280px;}
.footer-col h4{font-size:14px;color:var(--t1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13.5px;color:var(--t2);}
.footer-col ul li a:hover{color:var(--c-primary);}
.contact-line{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--t2);margin-bottom:10px;}
.contact-line i{color:var(--c-primary);font-size:13px;}
.footer-bar{
  position:relative;z-index:2;border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--t3);
}

/* ---------- 移动端底部 Tab ---------- */
.tab-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(23,45,90,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-bar .tab-inner{display:grid;grid-template-columns:repeat(5,1fr);}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 2px 8px;font-size:11px;color:var(--t3);
}
.tab-item i{font-size:18px;}
.tab-item.active{color:var(--c-primary);font-weight:600;}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:22px;height:3px;
  border-radius:0 0 3px 3px;background:var(--c-primary);
}

/* ---------- 栅格覆盖 ---------- */
.grid-x.gx-mid{margin-left:-12px;margin-right:-12px;}
.grid-x.gx-mid>.cell{padding-left:12px;padding-right:12px;}
.cell.mb{margin-bottom:24px;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .nav-wrap{gap:16px;height:64px;}
  .logo{font-size:16px;}
  .cat-banner h1{font-size:32px;}
  .sec{padding:64px 0;}
  .sec-head{margin-bottom:32px;}
  .sec-head h2{font-size:24px;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .timeline::before{left:19px;right:auto;top:20px;bottom:20px;width:2px;height:auto;}
  .tl-item{padding:0 0 24px 62px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-node{position:absolute;left:0;top:0;}
  .tl-body{margin-top:0;min-height:0;}
  .rank-wrap{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .rules{grid-template-columns:1fr;}
  .next-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px 28px;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .tab-bar{display:block;}
  body{padding-bottom:76px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .logo-full{display:none;}
  .logo-short{display:inline;}
  .nav-actions .btn-sm{display:none;}
  .banner-inner{padding:36px 0 42px;}
  .cat-banner h1{font-size:26px;line-height:1.35;}
  .banner-sub{font-size:15.5px;}
  .sec{padding:56px 0;}
  .sec-head h2{font-size:21px;}
  .cta-text h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bar{flex-direction:column;gap:6px;}
  .card-body{padding:20px;}
  .stat .num{font-size:26px;}
}

/* roulang page: category3 */
:root{
  --blue:#1B62D6;
  --blue-deep:#12439A;
  --blue-soft:#E8F0FE;
  --teal:#12A594;
  --teal-soft:#E4F6F3;
  --orange:#FF7A2F;
  --orange-deep:#E8661C;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --block:#EEF3FA;
  --text:#17233A;
  --text-2:#5A6B85;
  --text-3:#93A2B8;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 6px 20px rgba(23,45,90,.06);
  --shadow-hover:0 14px 32px rgba(23,45,90,.12);
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;border-radius:var(--radius-sm);}
a{color:var(--blue);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);}
a:hover{color:var(--blue-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:600;color:var(--text);letter-spacing:.2px;}
p{margin:0 0 16px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;transition:all var(--ease);
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(27,98,214,.22);}
.btn-primary:hover{background:var(--blue-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(27,98,214,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(27,98,214,.2);}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--blue);}
.btn-ghost:hover{background:var(--blue-soft);color:var(--blue-deep);}
.btn-accent{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(255,122,47,.24);}
.btn-accent:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,47,.3);}
.btn-accent:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(23,45,90,.08);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:76px;transition:height var(--ease);}
.site-header.scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.logo:hover{color:var(--blue);}
.logo-ring{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;flex:0 0 auto;}
.logo-ring svg{width:28px;height:28px;display:block;}
.logo-short{display:none;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--blue);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.main-nav a:hover{color:var(--blue);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--blue);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:16px;
}
.icon-btn:hover{color:var(--blue);border-color:var(--blue);background:var(--blue-soft);}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{display:none;}
.mobile-tab a{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 2px 8px;font-size:11px;color:var(--text-3);position:relative;
}
.mobile-tab a i{font-size:19px;line-height:1;}
.mobile-tab a::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--blue);transition:transform var(--ease);
}
.mobile-tab a.active{color:var(--blue);font-weight:600;}
.mobile-tab a.active::before{transform:translateX(-50%) scaleX(1);}

/* ============ 页面 Banner ============ */
.page-banner{
  position:relative;overflow:hidden;
  padding:34px 0 54px;
  background:
    linear-gradient(100deg,rgba(244,247,251,.97) 0%,rgba(244,247,251,.88) 46%,rgba(232,240,254,.72) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-banner::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.12);pointer-events:none;
}
.page-banner::before{
  content:"";position:absolute;right:30px;top:60px;width:220px;height:220px;border-radius:50%;
  border:1.5px solid rgba(18,165,148,.16);pointer-events:none;
}
.breadcrumb{position:relative;z-index:2;font-size:13px;color:var(--text-3);margin-bottom:14px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb span.sep{margin:0 8px;color:#C7D3E3;}
.breadcrumb .current{color:var(--text-2);}
.banner-inner{position:relative;z-index:2;max-width:820px;}
.banner-tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;margin-bottom:16px;
  border-radius:999px;background:var(--teal-soft);color:var(--teal);font-size:12px;font-weight:600;
}
.banner-inner h1{font-size:40px;line-height:1.25;font-weight:700;margin-bottom:16px;}
.banner-inner h1 em{font-style:normal;color:var(--blue);}
.banner-sub{font-size:17px;color:var(--text-2);line-height:1.8;margin-bottom:26px;max-width:720px;}
.banner-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 数据条 ============ */
.stat-bar{background:#fff;border-bottom:1px solid var(--line);}
.stat-bar .grid-x{padding:22px 0;}
.stat-item{display:flex;flex-direction:column;gap:2px;padding:0 4px;border-left:1px solid var(--line);padding-left:20px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:20px;font-weight:700;color:var(--blue);letter-spacing:.3px;}
.stat-label{font-size:13px;color:var(--text-3);}

/* ============ 区块通用 ============ */
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--block);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:1px;
  color:var(--teal);background:var(--teal-soft);padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:28px;line-height:1.4;margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--text-2);margin:0;}

/* ============ Foundation 栅格微调 ============ */
.grid-x{display:flex;flex-flow:row wrap;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.tile-cell{margin-bottom:24px;}

/* ============ 卡片墙 ============ */
.wall-grid .tile{
  height:100%;display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.wall-grid .tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6DAF8;}
.tile-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--blue-soft);}
.tile-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 320ms cubic-bezier(.4,0,.2,1);}
.tile:hover .tile-media img{transform:scale(1.03);}
.tile-media .tile-badge{
  position:absolute;left:12px;top:12px;height:24px;display:inline-flex;align-items:center;
  padding:0 10px;border-radius:999px;background:rgba(228,246,243,.95);color:var(--teal);
  font-size:12px;font-weight:600;
}
.tile-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.tile-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;}
.tile-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0 0 16px;}
.tile-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.tile-meta .meta-tag{color:var(--blue);font-weight:600;}
.tile-meta .arrow{color:var(--blue);font-size:13px;}

/* ============ 侧栏说明 ============ */
.side-panel{
  position:sticky;top:96px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 24px;overflow:hidden;
}
.side-panel::after{
  content:"";position:absolute;right:-70px;bottom:-70px;width:170px;height:170px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.08);pointer-events:none;
}
.side-panel h3{font-size:19px;margin-bottom:8px;}
.side-panel .side-desc{font-size:14px;color:var(--text-2);margin-bottom:18px;}
.side-list li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;
  padding:11px 0;border-bottom:1px solid var(--line);
}
.side-list li:last-child{border-bottom:0;}
.side-list li i{color:var(--teal);font-size:14px;margin-top:5px;flex:0 0 auto;}
.side-cta{margin-top:20px;display:flex;flex-direction:column;gap:10px;position:relative;z-index:2;}
.side-note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7;}

/* ============ 时间轴 / 步骤 ============ */
.steps{display:flex;gap:0;position:relative;margin-top:10px;}
.step{flex:1 1 0;position:relative;padding:0 18px;text-align:center;}
.step::before{
  content:"";position:absolute;top:23px;left:0;right:0;height:1.5px;
  background:repeating-linear-gradient(90deg,#C9DCF6 0 8px,transparent 8px 16px);
  z-index:0;
}
.step:first-child::before{left:50%;}
.step:last-child::before{right:50%;}
.step-node{
  position:relative;z-index:1;width:46px;height:46px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  background:#fff;border:2px solid var(--blue);color:var(--blue);
}
.step.done .step-node{background:var(--teal);border-color:var(--teal);color:#fff;}
.step h4{font-size:16px;margin-bottom:8px;}
.step p{font-size:13.5px;line-height:1.7;color:var(--text-2);margin:0;}

/* ============ 分区入口标签组 ============ */
.zone-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.zone-tabs button{
  border:1px solid var(--line);background:#fff;color:var(--text-2);
  padding:8px 16px;border-radius:999px;font-size:13.5px;cursor:pointer;transition:all var(--ease);
}
.zone-tabs button:hover{border-color:var(--blue);color:var(--blue);}
.zone-tabs button.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600;}
.zone-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);
}
.zone-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.zone-card .zone-icon{
  width:42px;height:42px;border-radius:12px;background:var(--blue-soft);color:var(--blue);
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:14px;
}
.zone-card h3{font-size:17px;margin-bottom:8px;}
.zone-card p{font-size:14px;color:var(--text-2);margin:0;}
.zone-panel{display:none;}
.zone-panel.active{display:block;}

/* ============ 提示条 ============ */
.notice-bar{
  display:flex;gap:14px;align-items:flex-start;background:var(--blue-soft);
  border:1px solid #CFE0FB;border-radius:var(--radius-sm);padding:16px 20px;margin-bottom:30px;
}
.notice-bar i{color:var(--blue);font-size:17px;margin-top:5px;}
.notice-bar p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--blue);
  transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--blue);}
.faq-q .faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{
  content:"";position:absolute;background:var(--blue);border-radius:2px;transition:transform var(--ease),opacity var(--ease);
}
.faq-q .faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-q .faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-q .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 200ms ease;}
.faq-a-inner{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-a-inner p:last-child{margin-bottom:0;}

/* ============ 延伸入口 ============ */
.related-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;height:100%;
  background:var(--blue-soft);border:1px solid #D6E4FB;border-radius:var(--radius);
  padding:20px 22px;transition:background var(--ease),transform var(--ease);
}
.related-card:hover{background:#DEEAFD;transform:translateY(-3px);}
.related-card strong{display:block;font-size:16px;color:var(--text);margin-bottom:4px;font-weight:600;}
.related-card span{font-size:13px;color:var(--text-2);}
.related-card i{color:var(--blue);font-size:15px;flex:0 0 auto;}

/* ============ CTA 条 ============ */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:240px;height:240px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.1);
}
.cta-band h2{font-size:24px;margin-bottom:8px;position:relative;z-index:2;}
.cta-band p{font-size:14.5px;color:var(--text-2);margin:0;position:relative;z-index:2;}
.cta-band .cta-actions{display:flex;gap:12px;flex:0 0 auto;position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-footer{background:var(--block);border-top:1px solid var(--line);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:36px;}
.footer-brand .logo{font-size:16px;margin-bottom:14px;}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.8;margin:0;max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13.5px;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--blue);}
.contact-line{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);margin-bottom:10px;line-height:1.6;}
.contact-line i{color:var(--blue);font-size:13px;flex:0 0 auto;}
.footer-bar{
  border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:12.5px;color:var(--text-3);flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav a{padding:8px 9px;font-size:14px;}
  .logo-full{font-size:15px;}
  .banner-inner h1{font-size:32px;}
  .section{padding:64px 0;}
  .side-panel{position:static;margin-top:8px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
}
@media screen and (max-width:768px){
  body{padding-bottom:76px;}
  .container{padding:0 16px;}
  .site-header .main-nav{display:none;}
  .nav-wrap{height:62px;}
  .site-header.scrolled .nav-wrap{height:58px;}
  .logo-full{display:none;}
  .logo-short{display:inline;font-size:16px;}
  .logo{font-size:16px;}
  .nav-actions .btn{display:none;}
  .mobile-tab{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -4px 18px rgba(23,45,90,.08);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .page-banner{padding:22px 0 40px;}
  .banner-inner h1{font-size:27px;line-height:1.35;}
  .banner-sub{font-size:15px;}
  .banner-actions .btn{flex:1 1 100%;}
  .section{padding:52px 0;}
  .section-head h2{font-size:21px;}
  .stat-item{border-left:0;padding-left:0;margin-bottom:16px;}
  .steps{flex-direction:column;gap:22px;}
  .step{padding:0 0 0 62px;text-align:left;}
  .step::before{display:none;}
  .step-node{position:absolute;left:0;top:0;margin:0;}
  .cta-band h2{font-size:20px;}
  .cta-band .cta-actions{width:100%;flex-direction:column;}
  .cta-band .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bar{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{padding:14px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
  .tile-body{padding:18px;}
}
@media screen and (max-width:520px){
  .banner-inner h1{font-size:24px;}
  .stat-num{font-size:18px;}
  .zone-tabs button{font-size:12.5px;padding:7px 13px;}
}

/* roulang page: category4 */
:root{
  --blue:#1B62D6;
  --blue-dark:#12439A;
  --blue-light:#E8F0FE;
  --teal:#12A594;
  --teal-light:#E4F6F3;
  --orange:#FF7A2F;
  --orange-dark:#E8661C;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --soft:#EEF3FA;
  --t1:#17233A;
  --t2:#5A6B85;
  --t3:#93A2B8;
  --r-card:16px;
  --r-btn:12px;
  --sh:0 6px 20px rgba(23,45,90,.06);
  --sh-hover:0 14px 32px rgba(23,45,90,.12);
  --max:1200px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--t1)}
h1{font-size:40px;line-height:1.25}
h2{font-size:28px}
h3{font-size:19px;line-height:1.5}
h4{font-size:16px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--blue);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--blue-dark)}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--blue-light);color:var(--blue-dark)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0;color:#fff}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-soft{background:var(--soft)}
.section-white{background:#fff}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease),background var(--ease);
}
.site-header.scrolled{background:#fff;box-shadow:0 8px 24px rgba(23,45,90,.08);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:76px;transition:height var(--ease)}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--t1);letter-spacing:.2px}
.logo:hover{color:var(--blue-dark)}
.logo-ring{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:50%;background:var(--blue-light);flex:0 0 auto}
.logo-ring svg{width:22px;height:22px}
.logo-short{display:none}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.main-nav a{position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--t2);border-radius:8px;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;background:var(--blue);transform:scaleX(0);transition:transform var(--ease)}
.main-nav a:hover{color:var(--blue)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--blue);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--t2)}
.icon-btn:hover{color:var(--blue);border-color:#C9DBF8;background:var(--blue-light)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:all var(--ease)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(27,98,214,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--blue);color:var(--blue)}
.btn-ghost:hover{background:var(--blue-light);color:var(--blue-dark)}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,47,.3)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-block{width:100%}
.btn:focus-visible,.icon-btn:focus-visible,.main-nav a:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-teal{background:var(--teal-light);color:#0E8377}
.badge-blue{background:var(--blue-light);color:var(--blue-dark)}
.badge-orange{background:#FFF1E7;color:#C9541A}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;color:var(--teal);margin-bottom:12px}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--soft);padding:52px 0 56px}
.page-hero .hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-3.png);background-size:cover;background-position:center;opacity:.14;pointer-events:none}
.page-hero .ring{position:absolute;border-radius:50%;border:1px solid rgba(27,98,214,.18);pointer-events:none}
.page-hero .ring-a{width:420px;height:420px;right:-120px;top:-140px}
.page-hero .ring-b{width:260px;height:260px;right:40px;top:60px;border-color:rgba(18,165,148,.22)}
.page-hero .ring-c{width:140px;height:140px;left:-50px;bottom:-50px;border-color:rgba(27,98,214,.14)}
.hero-inner{position:relative;z-index:2;max-width:820px}
.crumb{font-size:13px;color:var(--t3);margin-bottom:12px;display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--blue)}
.crumb .sep{color:#C4CFDE}
.crumb .now{color:var(--t2)}
.page-hero h1{margin-bottom:16px}
.hero-lead{font-size:18px;color:var(--t2);line-height:1.8;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ---------- 数据条 ---------- */
.stats-bar{margin-top:-34px;position:relative;z-index:5}
.stats-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:22px;font-weight:700;color:var(--blue-dark);letter-spacing:.4px}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--teal);margin-left:4px}
.stat-label{font-size:13px;color:var(--t2);margin-top:4px}

/* ---------- 板块标题 ---------- */
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-sub{font-size:16px;color:var(--t2);line-height:1.9}

/* ---------- 自查卡片 ---------- */
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#C9DBF8}
.check-media{position:relative;aspect-ratio:16/9;background:var(--blue-light);overflow:hidden}
.check-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.check-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px}
.check-body h3{font-size:18px}
.check-body p{font-size:14px;line-height:1.75;color:var(--t2)}
.check-list{margin-top:6px;display:flex;flex-direction:column;gap:6px}
.check-list li{position:relative;padding-left:18px;font-size:13px;color:var(--t2)}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--teal)}

/* ---------- 图文左右 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--sh)}
.split-media .ring-deco{position:absolute;width:160px;height:160px;border:1px solid rgba(27,98,214,.25);border-radius:50%;right:-40px;bottom:-40px;z-index:-1}
.split-body h2{margin-bottom:16px}
.split-body p{color:var(--t2);margin-bottom:16px}

/* ---------- 编号列表 ---------- */
.risk-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:8px 30px}
.risk-item{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.risk-item:last-child{border-bottom:0}
.risk-num{flex:0 0 auto;width:34px;height:34px;border-radius:50%;background:var(--blue-light);color:var(--blue-dark);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px}
.risk-body h3{font-size:17px;margin-bottom:6px}
.risk-body p{font-size:15px;color:var(--t2);line-height:1.8}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative}
.steps::before{content:"";position:absolute;left:10%;right:10%;top:26px;height:1px;background:repeating-linear-gradient(90deg,rgba(27,98,214,.35) 0 8px,transparent 8px 16px)}
.step{position:relative;background:transparent;text-align:center;padding:0 8px}
.step-dot{position:relative;z-index:2;width:54px;height:54px;margin:0 auto 18px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;color:var(--blue);box-shadow:var(--sh)}
.step.done .step-dot{background:var(--teal);border-color:var(--teal);color:#fff}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--t2);line-height:1.8}

/* ---------- 表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:36px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.form-field{margin-bottom:20px;display:flex;flex-direction:column}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:14px;font-weight:600;margin-bottom:8px}
.req{color:var(--orange);margin-left:2px}
.form-field input,.form-field select,.form-field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:border-color var(--ease),box-shadow var(--ease)}
.form-field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(27,98,214,.14)}
.form-hint{font-size:13px;color:var(--t3);margin-top:8px}
.form-note{background:var(--blue-light);border-radius:12px;padding:14px 16px;font-size:13px;color:var(--blue-dark);line-height:1.75;margin-bottom:22px}
.info-list{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-icon{flex:0 0 auto;width:38px;height:38px;border-radius:12px;background:var(--teal-light);color:#0E8377;display:flex;align-items:center;justify-content:center;font-size:15px}
.info-item h4{margin-bottom:3px}
.info-item p{font-size:14px;color:var(--t2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease)}
.faq-item[open]{border-color:#C9DBF8;box-shadow:var(--sh)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--blue)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:10px 22px;cursor:pointer;font-size:16px;font-weight:600;list-style:none;transition:color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--blue);font-size:20px;font-weight:400;line-height:1;flex:0 0 auto}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{color:var(--blue-dark)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--t2);line-height:1.85}

/* ---------- 延伸入口 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.link-card{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--blue-light);border:1px solid #D7E5FB;border-radius:14px;padding:22px 24px;transition:background-color var(--ease),transform var(--ease)}
.link-card:hover{background:#DCE9FD;transform:translateY(-2px)}
.link-card h3{font-size:16px;margin-bottom:4px;color:var(--t1)}
.link-card p{font-size:13px;color:var(--t2);line-height:1.7}
.link-card i{color:var(--blue);font-size:15px}

/* ---------- CTA ---------- */
.cta-band{background:#fff;border:1px solid #D7E5FB;border-radius:var(--r-card);box-shadow:var(--sh);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:26px;margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--t2)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--soft);border-top:1px solid var(--line);margin-top:0;padding:64px 0 26px;position:relative;overflow:hidden}
.site-footer .foot-ring{position:absolute;width:340px;height:340px;border:1px solid rgba(27,98,214,.12);border-radius:50%;right:-120px;top:-140px;pointer-events:none}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.footer-brand .logo{font-size:16px;margin-bottom:14px}
.footer-brand p{font-size:13px;color:var(--t2);line-height:1.8;max-width:280px}
.footer-col h4{font-size:15px;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13px;color:var(--t2)}
.footer-col a:hover{color:var(--blue)}
.contact-line{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--t2);margin-bottom:9px;line-height:1.7}
.contact-line i{color:var(--blue);margin-top:5px;font-size:12px}
.footer-bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:20px;font-size:12px;color:var(--t3)}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  h1{font-size:32px}
  h2{font-size:24px}
  .split{gap:32px;grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr;gap:32px}
  .stats-card{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .link-cards{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
}
@media (max-width:768px){
  .main-nav{display:none}
  .nav-actions .btn{display:none}
  .nav-wrap{height:62px}
  .site-header.scrolled .nav-wrap{height:58px}
  .logo-full{display:none}
  .logo-short{display:inline}
  .logo{font-size:16px}
  .container{padding:0 16px}
  h1{font-size:27px;line-height:1.35}
  h2{font-size:21px}
  .section{padding:56px 0}
  .page-hero{padding:36px 0 40px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .stats-bar{margin-top:-24px}
  .stat-item{padding:20px 18px}
  .steps{grid-template-columns:1fr;gap:22px}
  .steps::before{display:none}
  .step{text-align:left;display:flex;gap:16px;align-items:flex-start}
  .step-dot{margin:0;flex:0 0 auto}
  .risk-list{padding:6px 20px}
  .form-card{padding:24px 20px}
  .form-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .link-cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bar{flex-direction:column}
  body{padding-bottom:72px}
  .mobile-tab{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:90;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 18px rgba(23,45,90,.07);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-tab a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:8px 0 7px;font-size:11px;color:var(--t3);position:relative}
  .mobile-tab a i{font-size:17px;line-height:1}
  .mobile-tab a::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:22px;height:3px;border-radius:0 0 3px 3px;background:transparent}
  .mobile-tab a.active{color:var(--blue);font-weight:600}
  .mobile-tab a.active::before{background:var(--blue)}
}
@media (max-width:520px){
  h1{font-size:25px}
  .stats-card{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .hero-tags .badge{font-size:11px}
  .risk-item{gap:12px;padding:18px 0}
}