/* roulang page: index */
:root{
  --brand:#17427A;
  --brand-dark:#0E2E58;
  --brand-light:#EEF3FA;
  --amber:#E08A2E;
  --amber-dark:#C8761F;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --text:#16202E;
  --text-2:#5A6B82;
  --text-3:#8A97A8;
  --ok:#2E7D64;
  --muted:#B9C3D0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(20,40,80,.06);
  --shadow-hover:0 14px 32px rgba(20,40,80,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--page);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
  font-feature-settings:"tnum" 0;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding-top:96px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 顶部卡片化导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 20px 0;
}
.nav-panel{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:12px 18px;
  box-shadow:0 2px 12px rgba(20,40,80,.08);
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand__mark{
  width:34px;height:34px;flex:none;position:relative;
  border:2px solid var(--brand);
  border-radius:50%;
  transform:rotate(-24deg) scaleY(.82);
}
.brand__mark::after{
  content:"";position:absolute;inset:5px;
  border:2px solid var(--brand);border-radius:50%;
}
.brand__name{display:block;font-size:17px;font-weight:700;color:var(--brand);letter-spacing:.2px;line-height:1.3;}
.brand__sub{display:block;font-size:11px;color:var(--text-3);line-height:1.4;letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);
  white-space:nowrap;
  transition:all .2s ease;
}
.nav-item i{font-size:14px;color:var(--text-3);transition:color .2s ease;}
.nav-item:hover{background:var(--brand-light);color:var(--brand);border-color:#CBD9EC;}
.nav-item:hover i{color:var(--brand);}
.nav-item.is-active{
  background:var(--brand-light);
  color:var(--brand);
  border-color:#CBD9EC;
  box-shadow:inset 3px 0 0 var(--amber);
  font-weight:600;
}
.nav-item.is-active i{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:all .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(23,66,122,.24);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand);transform:translateY(-2px);}
.btn-amber{background:var(--amber);color:#fff;}
.btn-amber:hover{background:var(--amber-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(224,138,46,.26);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:active{transform:translateY(0);}

/* ---------- Hero ---------- */
.hero{padding:44px 0 0;}
.hero__grid{margin-bottom:0;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-light);color:var(--brand);
  border-radius:999px;padding:5px 14px;
  font-size:12px;font-weight:600;letter-spacing:.3px;margin-bottom:20px;
}
.hero__eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}
h1.hero__title{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  color:var(--text);margin-bottom:18px;
}
.hero__sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:34em;margin-bottom:14px;}
.hero__desc{font-size:15px;line-height:1.9;color:var(--text-2);max-width:36em;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;}
.stat__num{font-size:24px;font-weight:700;color:var(--brand);line-height:1.3;font-variant-numeric:tabular-nums;}
.stat__num small{font-size:13px;font-weight:600;margin-left:2px;}
.stat__label{font-size:13px;color:var(--text-2);line-height:1.6;margin-top:2px;}
.hero__figure{
  position:relative;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:16/10;background:var(--brand-light);
}
.hero__figure img{width:100%;height:100%;object-fit:cover;}
.hero__figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,0) 58%);
  pointer-events:none;
}
.hero__tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:8px 14px;font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--shadow);
}
.hero__tag-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-head__main{max-width:640px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;color:var(--text);
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{content:"";width:28px;height:3px;border-radius:2px;background:var(--amber);flex:none;}
.section-head__note{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.8;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.text-link i{transition:transform .2s ease;font-size:12px;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 卡片通用 ---------- */
.card{
  position:relative;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:all .2s ease;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1.4;font-weight:600;
}
.badge--blue{background:var(--brand-light);color:var(--brand);}
.badge--amber{background:#FCF1E3;color:var(--amber-dark);}
.badge--ok{background:#E8F3EF;color:var(--ok);}
.grid-row > .cell{margin-bottom:24px;}

/* ---------- 权益对比表 ---------- */
.compare-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  font-size:15px;overflow:visible;
}
.compare-table thead th{
  position:sticky;top:88px;z-index:6;
  background:var(--brand-light);color:var(--brand);
  font-size:14px;font-weight:700;
  padding:16px 18px;text-align:center;
  border-bottom:1px solid var(--line);
}
.compare-table thead th:first-child{text-align:left;border-top-left-radius:var(--radius);}
.compare-table thead th:last-child{border-top-right-radius:var(--radius);}
.compare-table thead th.col-rec{background:#E3ECF8;}
.compare-table tbody td{
  padding:14px 18px;border-bottom:1px solid var(--line);
  text-align:center;vertical-align:middle;
}
.compare-table tbody td:first-child{text-align:left;color:var(--text);font-weight:500;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover{background:#FAFCFF;}
.compare-table td.col-rec{background:rgba(224,138,46,.05);}
.th-inner{display:flex;flex-direction:column;align-items:center;gap:6px;}
.th-inner span:first-child{font-size:15px;}
.th-inner em{font-style:normal;font-size:12px;font-weight:500;color:var(--text-2);}
.mark{display:inline-block;position:relative;width:20px;height:20px;vertical-align:middle;}
.mark-yes::before{
  content:"";position:absolute;left:4px;top:5px;width:10px;height:5px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);
  transform:rotate(-45deg);border-radius:1px;
}
.mark-no::before{
  content:"";position:absolute;left:3px;top:9px;width:14px;height:2px;
  background:var(--muted);border-radius:2px;
}
.compare-foot{margin-top:24px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}
.benefit-cards{display:none;grid-template-columns:1fr;gap:20px;}
.benefit-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;}
.benefit-card.is-rec{border-color:#E8C79E;box-shadow:0 8px 24px rgba(224,138,46,.12);}
.benefit-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:14px;}
.benefit-card__name{font-size:18px;font-weight:700;color:var(--text);}
.benefit-card__price{font-size:13px;color:var(--text-2);}
.benefit-card ul{display:flex;flex-direction:column;gap:10px;}
.benefit-card li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.benefit-card li.off{color:var(--text-3);}

/* ---------- 等级亮点 ---------- */
.tier-card{padding:28px 26px 26px;position:relative;display:flex;flex-direction:column;height:100%;}
.tier-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;
  background:var(--amber);border-radius:0 4px 4px 0;
}
.tier-card__no{
  font-size:12px;font-weight:700;letter-spacing:1.6px;color:var(--text-3);
  text-transform:uppercase;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.tier-card__icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  font-size:18px;margin-bottom:16px;
}
.tier-card h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text);margin-bottom:10px;}
.tier-card__desc{font-size:14px;line-height:1.8;color:var(--text-2);min-height:50px;margin-bottom:16px;}
.tier-card__list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px;flex:1;}
.tier-card__list li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--text-2);}
.tier-card__list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  background:var(--brand);border-radius:1px;
}

/* ---------- 专属内容 ---------- */
.media-card{overflow:hidden;display:flex;flex-direction:column;height:100%;}
.media-card__thumb{position:relative;aspect-ratio:16/10;background:var(--brand-light);overflow:hidden;}
.media-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.media-card:hover .media-card__thumb img{transform:scale(1.03);}
.media-card__lock{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.95);border-radius:999px;
  padding:3px 10px;font-size:12px;font-weight:600;color:var(--amber-dark);
}
.media-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.media-card__body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--text);}
.media-card__body p{font-size:14px;line-height:1.8;color:var(--text-2);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.media-card__more{display:flex;align-items:center;justify-content:flex-end;gap:6px;font-size:13px;font-weight:600;color:var(--brand);}
.media-card__more i{transition:transform .2s ease;font-size:12px;}
.media-card:hover .media-card__more i{transform:translateX(4px);}

/* ---------- 最新信息 ---------- */
.news-card{overflow:hidden;display:flex;flex-direction:column;height:100%;}
.news-card__thumb{aspect-ratio:16/10;background:var(--brand-light);overflow:hidden;}
.news-card__thumb img{width:100%;height:100%;object-fit:cover;}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.news-card__date{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-card h3{
  font-size:17px;line-height:1.55;font-weight:700;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;line-height:1.75;color:var(--text-2);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__link{
  position:absolute;inset:0;z-index:1;border-radius:var(--radius);
  font-size:0;color:transparent;
}
.news-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line);}
.news-card__read{position:relative;z-index:2;font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.news-card__read i{font-size:11px;transition:transform .2s ease;}
.news-card:hover .news-card__read i{transform:translateX(4px);}
.empty-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow);
}
.empty-card i{font-size:42px;color:var(--muted);margin-bottom:14px;display:block;}
.empty-card p{font-size:15px;color:var(--text-2);margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px 8px;overflow:hidden;}
.faq-wrap ul.accordion{background:transparent;border:none;margin:0;}
.faq-wrap .accordion-item{border:none;border-bottom:1px solid var(--line);}
.faq-wrap .accordion-item:last-child{border-bottom:none;}
.faq-wrap .accordion-title{
  background:transparent;border:none;border-left:3px solid transparent;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  padding:20px 52px 20px 21px;position:relative;display:block;transition:all .2s ease;
}
.faq-wrap .accordion-title:hover{background:var(--brand-light);color:var(--brand);border-left-color:var(--amber);}
.faq-wrap .accordion-title::before{
  content:"";position:absolute;right:26px;top:50%;width:14px;height:2px;
  background:var(--brand);transform:translateY(-50%);border-radius:2px;
}
.faq-wrap .accordion-title::after{
  content:"";position:absolute;right:32px;top:50%;width:2px;height:14px;
  background:var(--brand);transform:translateY(-50%);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--brand);border-left-color:var(--amber);}
.faq-wrap .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) scaleY(0);opacity:0;}
.faq-wrap .accordion-content{
  border:none;background:#fff;padding:0 52px 22px 21px;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-light);border-radius:20px;
  padding:48px;display:grid;grid-template-columns:1.35fr 1fr;
  gap:36px;align-items:center;
}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--text);margin-bottom:14px;}
.cta-band p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:18px;}
.cta-points{display:flex;flex-direction:column;gap:9px;}
.cta-points li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.7;}
.cta-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.cta-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#fff;margin-top:96px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{border-color:#fff;}
.footer-brand .brand__mark::after{border-color:#fff;}
.footer-brand__name{font-size:18px;font-weight:700;color:#fff;letter-spacing:.2px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:26em;}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom span{display:inline-flex;align-items:center;gap:8px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding-top:72px;}
  h1.hero__title{font-size:34px;}
  .section-head h2{font-size:26px;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-actions .btn-ghost{display:none;}
}
@media (max-width:900px){
  .site-header{padding:12px 14px 0;}
  .nav-panel{flex-wrap:wrap;padding:10px 14px;gap:12px;}
  .nav-toggle{display:flex;order:3;margin-left:auto;}
  .nav-actions{order:2;margin-left:auto;}
  .nav-links{
    order:4;display:none;width:100%;
    flex-direction:column;align-items:stretch;gap:0;
    border-top:1px solid var(--line);padding-top:8px;margin-top:4px;
  }
  .nav-panel.is-open .nav-links{display:flex;}
  .nav-item{
    border:none;border-radius:0;border-bottom:1px solid var(--line);
    padding:0 8px;height:48px;justify-content:flex-start;gap:10px;font-size:15px;
  }
  .nav-item:last-child{border-bottom:none;}
  .nav-item::after{
    content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;
    margin-left:auto;color:var(--text-3);font-size:13px;
  }
  .nav-item.is-active{box-shadow:inset 3px 0 0 var(--amber);}
  .hero{padding:32px 0 0;}
  .hero__figure{margin-top:32px;}
  .hero__stats{grid-template-columns:1fr 1fr;}
  .compare-table thead th{top:76px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding-top:56px;}
  h1.hero__title{font-size:28px;letter-spacing:-.2px;}
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:24px;}
  .compare-table{display:none;}
  .benefit-cards{display:grid;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .faq-wrap .accordion-title{font-size:16px;padding:18px 48px 18px 17px;}
  .faq-wrap .accordion-content{padding:0 24px 20px 17px;font-size:14px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:600px){
  .hero__stats{grid-template-columns:1fr;}
  .hero__actions .btn{flex:1 1 100%;}
  .nav-actions .btn-sm{padding:0 12px;font-size:13px;}
  .brand__sub{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --primary:#17427A;
  --primary-dark:#0E2E58;
  --primary-light:#EEF3FA;
  --accent:#E08A2E;
  --accent-dark:#C8761F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --text:#16202E;
  --text-2:#5A6B82;
  --muted:#8A97A8;
  --ok:#2E7D64;
  --no:#B9C3D0;
  --radius-lg:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(20,40,80,.06);
  --shadow-hover:0 14px 32px rgba(20,40,80,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding-top:96px}
.section--tight{padding-top:72px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航面板 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px;
  background:rgba(246,248,252,.96);
}
.nav-panel{
  max-width:var(--container);margin:0 auto;
  display:flex;align-items:center;gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:12px 18px;
  box-shadow:0 2px 12px rgba(20,40,80,.08);
  transition:box-shadow .2s ease;
}
.nav-panel.is-open{box-shadow:0 14px 32px rgba(20,40,80,.12)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover .brand__name{color:var(--primary-dark)}
.brand__mark{position:relative;display:block;width:38px;height:38px;flex:0 0 38px}
.brand__mark::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--primary)}
.brand__mark::after{content:"";position:absolute;inset:9px;border-radius:50% / 38%;border:2px solid var(--accent)}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:-.2px;transition:color .2s ease}
.brand__sub{font-size:11px;color:var(--muted);letter-spacing:.4px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:wrap}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;font-size:14px;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--card);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-item i{font-size:13px;color:var(--primary);opacity:.82}
.nav-item:hover{background:var(--primary-light);color:var(--primary);border-color:#D5E1F1}
.nav-item:hover i{opacity:1}
.nav-item.is-active{
  background:var(--primary-light);color:var(--primary);font-weight:600;
  border-color:#D5E1F1;box-shadow:inset 3px 0 0 var(--accent);
}
.nav-item.is-active i{opacity:1}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:var(--radius-sm);background:var(--card);
  padding:0;margin-left:auto;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-align:center;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(20,40,80,.18)}
.btn-secondary{background:var(--card);color:var(--primary);border-color:var(--primary)}
.btn-secondary:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,118,31,.24)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ============ Hero ============ */
.hero{padding-top:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.6px;color:var(--primary);
  background:var(--primary-light);border-radius:999px;padding:6px 14px;
}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--accent);border-radius:2px}
.hero h1{
  margin-top:18px;
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;color:var(--text);
}
.hero__lead{margin-top:16px;font-size:18px;line-height:1.75;color:var(--text-2);font-weight:500;max-width:560px}
.hero__text{margin-top:12px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:600px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.stat-card{
  flex:1 1 140px;min-width:130px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;box-shadow:var(--shadow);
}
.stat-card strong{display:block;font-size:24px;line-height:1.2;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-card span{display:block;margin-top:4px;font-size:13px;color:var(--muted);line-height:1.5}
.hero__figure{position:relative;margin-top:8px}
.hero__figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero__tag{
  position:absolute;left:16px;bottom:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:10px 14px;font-size:13px;font-weight:600;color:var(--primary);
  box-shadow:var(--shadow);display:flex;align-items:center;gap:8px;
}
.hero__tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ============ 板块标题 ============ */
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;color:var(--text);letter-spacing:-.4px;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{content:"";width:22px;height:4px;border-radius:2px;background:var(--accent);flex:0 0 22px}
.section-head p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ============ 卡片 ============ */
.card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
  height:100%;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.card--bar::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;
  border-radius:0 4px 4px 0;background:var(--accent);
}
.card__img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.card__body{padding:24px 28px 28px}
.card__body--sm{padding:22px 24px 24px}
.card h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text)}
.card p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-2)}
.card__link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--primary)}
.card__link i{font-size:12px;transition:transform .2s ease}
.card:hover .card__link i{transform:translateX(4px)}
.card__index{
  display:block;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--accent);
  font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.card--mini .card__body--sm{padding:20px 22px 22px}
.card--mini h3{font-size:17px}
.card--mini p{font-size:14px;line-height:1.8}

/* 提示卡 */
.notice-card{
  background:var(--primary-light);border:1px solid #D5E1F1;border-radius:var(--radius-lg);
  padding:28px;height:100%;display:flex;flex-direction:column;justify-content:center;
}
.notice-card h3{font-size:20px;font-weight:700;color:var(--primary-dark)}
.notice-card ul{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.notice-card li{position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--text-2)}
.notice-card li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--primary)}

/* ============ 要点清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 40px;margin-top:8px}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 18px;box-shadow:var(--shadow);
}
.check-item .tick{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:var(--primary-light);position:relative;margin-top:3px;
}
.check-item .tick::after{
  content:"";position:absolute;left:7px;top:5px;width:6px;height:10px;
  border-right:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(45deg);
}
.check-item h3{font-size:16px;font-weight:700;line-height:1.6;color:var(--text)}
.check-item p{font-size:14px;line-height:1.8;color:var(--text-2);margin-top:2px}

/* ============ 对照表 ============ */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:8px 8px 0;overflow:hidden;
}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.compare-table thead th{
  font-size:14px;font-weight:700;color:var(--text-2);background:#FBFCFE;
  position:sticky;top:0;z-index:2;
}
.compare-table thead th:first-child{border-radius:10px 0 0 0}
.compare-table thead th:last-child{border-radius:0 10px 0 0}
.compare-table tbody th{font-weight:600;color:var(--text);text-align:left;font-size:15px}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:#FAFCFF}
.col-recommend{background:var(--primary-light)}
.compare-table thead th.col-recommend{color:var(--primary);position:relative}
.badge{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-tag{background:var(--primary-light);color:var(--primary)}
.badge-accent{background:#FDF2E5;color:var(--accent-dark)}
.flag{display:inline-block;position:relative;width:20px;height:20px;border-radius:50%;background:var(--primary-light);vertical-align:middle}
.flag.is-yes::after{
  content:"";position:absolute;left:7px;top:4px;width:6px;height:11px;
  border-right:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(45deg);
}
.flag.is-no{background:#F1F4F9}
.flag.is-no::after{content:"";position:absolute;left:6px;top:9px;width:8px;height:2px;background:var(--no);border-radius:2px}
.flag-text{margin-left:8px;font-size:14px;color:var(--text-2)}
.table-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 18px;border-top:1px solid var(--line);background:#FBFCFE;
}
.table-foot p{font-size:14px;color:var(--muted);line-height:1.7}
.table-foot .btn-group{display:flex;gap:12px;flex-wrap:wrap}

/* ============ FAQ ============ */
.faq-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:8px 28px;
}
.accordion{border:none;background:transparent;margin:0}
.accordion .accordion-item{border-bottom:1px solid var(--line)}
.accordion .accordion-item:last-child{border-bottom:none}
.accordion .accordion-title{
  padding:20px 40px 20px 18px;font-size:17px;font-weight:600;color:var(--text);
  border:none;background:transparent;position:relative;transition:color .2s ease;
}
.accordion .accordion-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:2px;background:var(--accent);opacity:0;transition:opacity .2s ease;
}
.accordion .accordion-title:hover{color:var(--primary);background:transparent}
.accordion .accordion-title:hover::before{opacity:1}
.accordion .accordion-title::after{
  content:"";position:absolute;right:14px;top:50%;width:12px;height:12px;
  margin-top:-6px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(45deg);transition:transform .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::after{transform:rotate(-135deg)}
.accordion .accordion-content{
  padding:0 40px 22px 18px;border:none;background:transparent;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--primary-light);border:1px solid #D5E1F1;border-radius:var(--radius-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--primary-dark);letter-spacing:-.4px}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.8;max-width:520px}
.cta-band ul{display:flex;gap:20px;flex-wrap:wrap;margin-top:14px}
.cta-band li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2)}
.cta-band li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--primary-dark);color:#fff;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand__mark::before{border-color:#fff}
.footer-brand .brand__mark::after{border-color:var(--accent)}
.footer-brand__name{font-size:17px;font-weight:700;color:#fff;letter-spacing:-.2px}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:280px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.4px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding-top:72px}
  .hero h1{font-size:34px}
  .section-head h2{font-size:26px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-panel{flex-wrap:wrap}
  .nav-panel.is-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    flex:1 1 100%;order:5;margin-top:14px;border-top:1px solid var(--line);padding-top:8px;
  }
  .nav-panel.is-open .nav-item{
    border:none;border-bottom:1px solid var(--line);border-radius:0;
    padding:0 4px;height:48px;justify-content:flex-start;font-size:15px;
  }
  .nav-panel.is-open .nav-item.is-active{box-shadow:inset 3px 0 0 var(--accent);background:var(--primary-light)}
  .nav-panel.is-open .nav-item::after{
    content:"\203A";margin-left:auto;color:var(--muted);font-size:18px;
  }
  .nav-actions{display:none}
  .nav-panel.is-open .nav-actions{
    display:flex;flex:1 1 100%;order:6;flex-direction:column;gap:10px;margin-top:14px;padding-top:14px;
    border-top:1px solid var(--line);
  }
  .nav-panel.is-open .nav-actions .btn{width:100%}
  .check-grid{grid-template-columns:1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:32px}
}
@media (max-width:768px){
  .hero h1{font-size:30px}
  .hero__lead{font-size:17px}
  .section-head h2{font-size:24px}
  .compare-table thead{display:none}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:100%}
  .compare-table tr{
    border:1px solid var(--line);border-radius:12px;margin-bottom:14px;padding:6px 14px;background:#fff;
  }
  .compare-table tbody th{border-bottom:1px solid var(--line);padding:12px 0;font-size:15px}
  .compare-table td{display:flex;align-items:center;justify-content:space-between;border-bottom:1px dashed var(--line);padding:12px 0}
  .compare-table td:last-child{border-bottom:none}
  .compare-table td::before{content:attr(data-label);font-size:13px;color:var(--muted);margin-right:12px}
  .table-wrap{background:transparent;border:none;box-shadow:none;padding:0}
  .table-foot{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);margin-top:4px}
  .table-foot .btn-group{width:100%;flex-direction:column}
  .table-foot .btn{width:100%}
  .cta-band h2{font-size:23px}
  .cta-band__actions{width:100%;flex-direction:column}
  .cta-band__actions .btn{width:100%}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .site-header{padding:12px}
  .section{padding-top:52px}
  .hero{padding-top:28px}
  .hero h1{font-size:27px;line-height:1.3}
  .section-head h2{font-size:22px}
  .card__body{padding:20px 22px 24px}
  .faq-card{padding:8px 18px}
  .accordion .accordion-title{font-size:16px;padding:18px 36px 18px 16px}
  .accordion .accordion-content{padding:0 36px 20px 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .hero__stats{gap:10px}
  .stat-card{flex:1 1 100%}
  .cta-band{padding:26px 22px}
}

/* roulang page: article */
:root{
  --brand:#17427A;
  --brand-dark:#0E2E58;
  --brand-light:#EEF3FA;
  --amber:#E08A2E;
  --amber-dark:#C8761F;
  --amber-light:#FDF2E4;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --ink:#16202E;
  --ink-2:#5A6B82;
  --ink-3:#8A97A8;
  --ok:#2E7D64;
  --off:#B9C3D0;
  --danger:#B8402F;
  --r-lg:16px;
  --r-sm:10px;
  --shadow:0 8px 24px rgba(20,40,80,.06);
  --shadow-md:0 14px 32px rgba(20,40,80,.10);
  --shadow-nav:0 2px 12px rgba(20,40,80,.08);
  --container:1200px;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,hr{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
a:hover{color:var(--brand-dark)}
button{font-family:inherit;cursor:pointer;border:0;background:none}
time,.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 导航面板 ---------- */
.site-header{position:sticky;top:0;z-index:90;padding:16px 16px 0}
.nav-panel{
  position:relative;
  max-width:var(--container);
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:12px 18px;
  display:flex;
  align-items:center;
  gap:18px;
  box-shadow:var(--shadow);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.nav-panel.is-scrolled{box-shadow:var(--shadow-nav);border-color:#D6E0EE}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand:hover{color:var(--brand)}
.brand__mark{
  position:relative;width:34px;height:34px;border-radius:50%;
  border:2px solid var(--brand);flex:0 0 auto;
  transition:transform var(--ease);
}
.brand__mark::before{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:2px solid var(--amber);
}
.brand:hover .brand__mark{transform:rotate(-12deg)}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-size:17px;font-weight:700;color:var(--brand);letter-spacing:.2px}
.brand__sub{font-size:11px;color:var(--ink-3);letter-spacing:.3px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 10px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;line-height:1;color:var(--ink-2);
  background:#fff;white-space:nowrap;
}
.nav-item i{font-size:14px;color:var(--ink-3);transition:color var(--ease)}
.nav-item:hover{background:var(--brand-light);color:var(--brand);border-color:#CFDCEE}
.nav-item:hover i{color:var(--brand)}
.nav-item.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;border-color:#CFDCEE}
.nav-item.is-active i{color:var(--brand)}
.nav-item.is-active::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--amber);
}
.nav-item:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 11px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;margin-left:auto;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--brand);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(20,40,80,.18)}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-secondary:hover{background:var(--brand-light);color:var(--brand);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand);border-color:#CFDCEE}
.btn-amber{background:var(--amber);color:#fff}
.btn-amber:hover{background:var(--amber-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,118,31,.26)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}

/* ---------- 主区 ---------- */
.site-main{padding-bottom:8px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:14px;line-height:1.7;color:var(--ink-2);
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline}
.breadcrumb .sep{color:var(--off)}
.breadcrumb .crumb-cat{color:var(--ink-2)}
.breadcrumb .current{
  color:var(--brand);font-weight:600;max-width:min(560px,100%);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-layout{padding-top:22px;padding-bottom:0}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:40px 42px 44px;
  box-shadow:var(--shadow);
}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;line-height:1.4;font-weight:600;
}
.article-badge i{font-size:11px}
.article-title{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  color:var(--ink);margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  font-size:14px;line-height:1.7;color:var(--ink-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{font-size:13px;color:var(--off)}
.article-divider{height:1px;background:var(--line);margin:26px 0 30px;border:0}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16px;line-height:1.9;color:var(--ink);word-break:break-word}
.article-body > * + *{margin-top:18px}
.article-body > p:first-child{font-size:17px;line-height:1.95;color:#243146}
.article-body p{max-width:42em}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;
  margin:42px 0 0;padding-left:14px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;
  width:4px;border-radius:2px;background:var(--amber);
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin:32px 0 0;color:var(--brand-dark)}
.article-body h4{font-size:17px;line-height:1.6;font-weight:700;margin:26px 0 0;color:var(--ink)}
.article-body ul,.article-body ol{padding-left:2px}
.article-body li{position:relative;padding-left:20px;margin:8px 0;max-width:42em}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.74em;
  width:7px;height:7px;border-radius:2px;background:var(--brand);opacity:.85;
}
.article-body ol{counter-reset:olc}
.article-body ol > li{counter-increment:olc}
.article-body ol > li::before{
  content:counter(olc) ".";position:absolute;left:0;top:0;
  font-size:14px;font-weight:700;line-height:1.9;color:var(--amber-dark);
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#2B3A4F;
}
.article-body blockquote p{max-width:none;font-size:15.5px}
.article-body blockquote p + p{margin-top:10px}
.article-body figure{margin:26px 0}
.article-body img{border-radius:12px;width:100%;height:auto}
.article-body figcaption{font-size:13px;line-height:1.7;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body .table-wrap{
  overflow-x:auto;margin:24px 0;border:1px solid var(--line);
  border-radius:var(--r-sm);background:#fff;
}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid var(--line);
  text-align:left;line-height:1.7;vertical-align:top;
}
.article-body th{background:var(--brand-light);color:var(--brand-dark);font-weight:700;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  background:#F1F4F9;border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;font-size:13.5px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--brand-dark);color:#EAF0FA;padding:18px 20px;
  border-radius:12px;overflow-x:auto;font-size:13.5px;line-height:1.7;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit}
.article-body strong{font-weight:700;color:var(--brand-dark)}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

/* ---------- 标签与结尾动作 ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.article-tags .tag-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;background:var(--brand-light);color:var(--brand);
  font-size:12px;line-height:1.4;font-weight:600;
}
.tag:hover{background:#E2EBF7;color:var(--brand-dark)}
.article-foot-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 20px;border-radius:16px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state h1{font-size:28px;line-height:1.35;font-weight:700;margin-bottom:12px}
.empty-state p{font-size:15px;line-height:1.85;color:var(--ink-2);max-width:460px;margin:0 auto 26px}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:104px}
.member-card{
  background:var(--card);border:1px solid var(--line);border-left:4px solid var(--amber);
  border-radius:var(--r-lg);padding:26px 26px 24px;box-shadow:var(--shadow);
}
.member-card__eyebrow{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:var(--amber-light);color:var(--amber-dark);
  font-size:12px;font-weight:600;line-height:1.4;
}
.member-card h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--ink);margin:14px 0 10px}
.member-card__desc{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:18px}
.member-points li{
  position:relative;padding-left:26px;margin-bottom:12px;
  font-size:14px;line-height:1.75;color:var(--ink-2);
}
.member-points li i{
  position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);font-size:9px;
  display:flex;align-items:center;justify-content:center;
}
.member-card__second{margin-top:12px}
.member-card__note{font-size:12.5px;line-height:1.75;color:var(--ink-3);margin-top:14px}
.side-note{
  margin-top:20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--shadow);
}
.side-note h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:12px}
.side-note ul li{
  font-size:13.5px;line-height:1.8;color:var(--ink-2);
  padding-bottom:10px;margin-bottom:10px;border-bottom:1px dashed var(--line);
}
.side-note ul li:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0}

/* ---------- 相关推荐 ---------- */
.related-section{padding:64px 0 88px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:24px;
}
.section-head h2{
  position:relative;font-size:28px;line-height:1.35;font-weight:700;
  letter-spacing:-.3px;padding-left:14px;color:var(--ink);
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;
  width:4px;border-radius:2px;background:var(--amber);
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.text-link i{font-size:12px;transition:transform var(--ease)}
.text-link:hover i{transform:translateX(4px)}
.info-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.info-card__media{aspect-ratio:16/10;background:var(--brand-light);overflow:hidden}
.info-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.info-card:hover .info-card__media img{transform:scale(1.03)}
.info-card__body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.info-card__title{
  font-size:17px;line-height:1.5;font-weight:700;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card__title a{color:inherit}
.info-card__title a::after{content:"";position:absolute;inset:0;z-index:1}
.info-card:hover .info-card__title a{color:var(--brand)}
.info-card__desc{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card__foot{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;
  justify-content:space-between;gap:12px;
  font-size:13px;line-height:1.6;color:var(--ink-3);
}
.info-card__link{
  position:relative;z-index:2;display:inline-flex;align-items:center;gap:4px;
  font-size:13.5px;font-weight:600;color:var(--brand);
}
.info-card__link i{font-size:11px;transition:transform var(--ease)}
.info-card:hover .info-card__link i{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:#D7E1F0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;padding:72px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand__name{font-size:17px;font-weight:700;color:#fff}
.site-footer .brand__mark{border-color:#8FA8C8}
.site-footer .brand__mark::before{border-color:var(--amber)}
.footer-desc{font-size:13.5px;line-height:1.85;color:#9CB1CC;max-width:300px}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px;color:#B9CBE3;font-size:14px;line-height:1.7}
.footer-col a{color:#B9CBE3;font-size:14px;line-height:1.7}
.footer-col a:hover{color:var(--amber)}
.footer-col a:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px;border-radius:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;line-height:1.7;color:#93A9C6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-panel{flex-wrap:wrap}
  .nav-links{order:3;width:100%;justify-content:flex-start;margin-top:10px}
  .nav-actions{margin-left:auto}
}
@media (max-width:1024px){
  .sidebar{position:static;margin-top:40px}
  .article-layout{padding-bottom:0}
  .related-section{padding:56px 0 72px}
}
@media (max-width:900px){
  .site-header{padding:10px 12px 0}
  .nav-panel{padding:10px 14px;gap:10px;flex-wrap:nowrap}
  .brand__sub{display:none}
  .nav-toggle{display:flex}
  .nav-links{display:none}
  .nav-actions{display:none;margin-left:0}
  .nav-panel.is-open .nav-links{
    display:flex;flex-direction:column;gap:0;
    position:absolute;left:-1px;right:-1px;top:calc(100% + 8px);
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:6px 10px;box-shadow:var(--shadow-md);
    margin-top:0;width:auto;
  }
  .nav-panel.is-open .nav-item{
    width:100%;height:48px;border:0;border-bottom:1px solid var(--line);
    border-radius:0;padding:0 6px;background:#fff;
    justify-content:flex-start;font-size:15px;
  }
  .nav-panel.is-open .nav-item i{font-size:15px}
  .nav-panel.is-open .nav-item:last-child{border-bottom:0}
  .nav-panel.is-open .nav-item::before{display:none}
  .nav-panel.is-open .nav-item::after{
    content:"\203A";margin-left:auto;color:var(--off);font-size:18px;line-height:1;
  }
  .nav-panel.is-open .nav-item.is-active{background:var(--brand-light)}
  .nav-panel.is-open .nav-actions{
    display:flex;flex-direction:column;gap:10px;width:100%;
    position:absolute;left:-1px;right:-1px;top:calc(100% + 8px);
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:14px;box-shadow:var(--shadow-md);margin-top:0;
  }
  .nav-panel.is-open .nav-actions .btn{width:100%}
  .nav-panel.is-open .nav-links{padding-bottom:6px}
  .nav-panel.is-open{padding-bottom:10px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
}
@media (max-width:768px){
  .article-card{padding:28px 22px 30px}
  .article-title{font-size:30px}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px;margin-top:26px}
  .article-body > p:first-child{font-size:16px}
  .section-head h2{font-size:23px}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .article-title{font-size:27px;line-height:1.3;letter-spacing:-.3px}
  .article-card{padding:24px 18px 26px;border-radius:14px}
  .article-meta{gap:6px 14px;font-size:13px}
  .article-body p,.article-body li{max-width:none}
  .breadcrumb{font-size:13px;padding-top:18px}
  .breadcrumb .current{white-space:normal;max-width:100%}
  .related-section{padding:44px 0 60px}
  .empty-state{padding:48px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 28px}
  .footer-bottom{font-size:12.5px}
  .member-card{padding:22px 20px}
  .article-foot-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink-blue:#17427A;
  --ink-blue-deep:#0E2E58;
  --ink-blue-soft:#EEF3FA;
  --amber:#E08A2E;
  --amber-deep:#C8761F;
  --amber-soft:#FDF3E6;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --line:#E2E8F1;
  --text:#16202E;
  --text-2:#5A6B82;
  --text-3:#8A97A8;
  --ok:#2E7D64;
  --na:#B9C3D0;
  --danger:#C0392B;
  --r-lg:16px;
  --r-sm:10px;
  --shadow:0 8px 24px rgba(20,40,80,.06);
  --shadow-hover:0 14px 32px rgba(20,40,80,.10);
  --ease:200ms ease;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--page);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--ink-blue);text-decoration:none;transition:color var(--ease)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px}
table{border-collapse:collapse}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn i{font-size:14px}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.btn-primary{background:var(--ink-blue);color:#fff;border-color:var(--ink-blue)}
.btn-primary:hover{background:var(--ink-blue-deep);border-color:var(--ink-blue-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(20,40,80,.20)}
.btn-ghost{background:#fff;color:var(--ink-blue);border-color:var(--ink-blue)}
.btn-ghost:hover{background:var(--ink-blue-soft);color:var(--ink-blue-deep);transform:translateY(-2px)}
.btn-accent{background:var(--amber);color:#fff;border-color:var(--amber)}
.btn-accent:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,118,31,.26)}
.btn-block{width:100%}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid rgba(224,138,46,.45);outline-offset:2px}

/* ===== 导航面板 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:16px 20px;
  background:var(--page);
}
.nav-panel{
  max-width:1200px;
  margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:12px 18px;
  display:flex;
  align-items:center;
  gap:16px;
  position:relative;
  transition:box-shadow var(--ease);
}
.nav-panel.is-stuck{box-shadow:0 2px 12px rgba(20,40,80,.08)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:50%;
  border:2px solid var(--ink-blue);position:relative;
}
.brand__mark::after{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:2px solid var(--amber);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:17px;font-weight:700;color:var(--ink-blue);letter-spacing:.3px}
.brand__sub{font-size:11px;color:var(--text-3);letter-spacing:.4px;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:wrap}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;color:var(--text-2);background:#fff;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-item i{font-size:14px;color:var(--text-3);transition:color var(--ease)}
.nav-item:hover{background:var(--ink-blue-soft);color:var(--ink-blue);border-color:#CFDDF0}
.nav-item:hover i{color:var(--ink-blue)}
.nav-item.is-active{background:var(--ink-blue-soft);color:var(--ink-blue);font-weight:600;border-color:#CFDDF0;box-shadow:inset 3px 0 0 var(--amber)}
.nav-item.is-active i{color:var(--ink-blue)}
.nav-actions{display:flex;gap:8px;align-items:center;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-blue);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle:hover{background:var(--ink-blue-soft);border-color:#CFDDF0}
.nav-panel.is-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-panel.is-open .nav-toggle span:nth-child(2){opacity:0}
.nav-panel.is-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 通用板块 ===== */
.section{padding:88px 0}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding-top:56px}
.section-head{max-width:760px;margin-bottom:40px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:var(--amber-deep);
}
.kicker::before{content:"";display:block;width:22px;height:2px;border-radius:2px;background:var(--amber)}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.3px;
  color:var(--text);margin:12px 0 12px;
}
.section-head p{font-size:16px;color:var(--text-2);line-height:1.9}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.4;white-space:nowrap;
}
.badge--soft{background:var(--ink-blue-soft);color:var(--ink-blue)}
.badge--amber{background:var(--amber-soft);color:var(--amber-deep)}

/* ===== Hero ===== */
.hero{padding:40px 0 80px;background:linear-gradient(180deg,#F8FAFD 0%,#EEF3FA 100%)}
.hero-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:48px;box-shadow:var(--shadow);
}
.hero-card::before{
  content:"";position:absolute;top:0;right:0;width:44%;height:100%;
  background-image:repeating-linear-gradient(90deg,rgba(23,66,122,.045) 0 1px,transparent 1px 40px);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ink-blue);
  background:var(--ink-blue-soft);border-radius:999px;padding:5px 14px;letter-spacing:.3px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.hero-title{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  color:var(--text);margin:18px 0 14px;
}
.hero-sub{font-size:17px;color:var(--text-2);line-height:1.8;max-width:520px}
.hero-sub strong{color:var(--ink-blue);font-weight:600}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px;max-width:560px}
.stat{background:var(--page);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat b{display:block;font-size:24px;line-height:1.2;color:var(--ink-blue);font-feature-settings:"tnum";font-weight:700}
.stat span{display:block;font-size:13px;color:var(--text-3);line-height:1.6;margin-top:4px}

/* 等级阶梯卡 */
.ladder{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow)}
.ladder-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.ladder-head h2{font-size:15px;font-weight:700;color:var(--text);margin:0;letter-spacing:.2px}
.ladder-head span{font-size:12px;color:var(--text-3)}
.ladder-row{
  display:flex;align-items:center;gap:14px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  padding:14px 16px;margin-bottom:12px;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.ladder-row:last-child{margin-bottom:0}
.ladder-row:hover{transform:translateX(2px)}
.ladder-row--featured{background:var(--ink-blue-soft);border-color:#CFDDF0}
.ladder-no{font-size:12px;font-weight:700;color:var(--text-3);letter-spacing:.6px;font-feature-settings:"tnum"}
.ladder-body{flex:1 1 auto;min-width:0}
.ladder-name{display:block;font-size:15px;font-weight:700;color:var(--text);line-height:1.4}
.ladder-desc{display:block;font-size:12px;color:var(--text-2);line-height:1.6;margin-top:2px}
.ladder-bar{width:6px;border-radius:999px;background:var(--ink-blue);flex:0 0 auto;opacity:.9}
.ladder-bar--sm{height:22px}
.ladder-bar--md{height:38px}
.ladder-bar--lg{height:54px}
.ladder-row--featured .ladder-bar{background:var(--amber)}
.ladder-foot{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-3);line-height:1.7;
}

/* ===== 等级阶梯列表 ===== */
.plan-item{display:flex;gap:22px;margin-bottom:24px}
.plan-rail{flex:0 0 60px;position:relative;display:flex;justify-content:flex-start}
.plan-num{
  width:52px;height:52px;border-radius:14px;flex:0 0 auto;
  background:var(--ink-blue-soft);border:1px solid #D7E3F3;color:var(--ink-blue);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;font-feature-settings:"tnum";
  position:relative;z-index:1;
}
.plan-rail::after{
  content:"";position:absolute;left:25px;top:62px;bottom:-24px;width:2px;
  background:var(--line);
}
.plan-item:last-child{margin-bottom:0}
.plan-item:last-child .plan-rail::after{display:none}
.plan-card{
  flex:1 1 auto;min-width:0;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--amber);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow);
  transition:box-shadow var(--ease),transform var(--ease);
}
.plan-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.plan-row-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.plan-row-top h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--text);margin:0}
.plan-lead{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:18px}
.plan-points{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin-bottom:22px}
.plan-points li{position:relative;padding-left:22px;font-size:14px;line-height:1.75;color:var(--text-2)}
.plan-points li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--ink-blue-soft);border:2px solid var(--ink-blue);
}
.plan-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.plan-meta{font-size:13px;color:var(--text-3);font-feature-settings:"tnum"}

/* ===== 选档参考 ===== */
.media-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:var(--ink-blue-soft);
}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-caption{font-size:13px;color:var(--text-3);margin-top:10px;text-align:center}
.check-list li{position:relative;padding-left:28px;margin-bottom:16px;font-size:15px;color:var(--text-2);line-height:1.8}
.check-list li::before{
  content:"";position:absolute;left:0;top:5px;width:17px;height:17px;border-radius:5px;
  background:var(--ink-blue-soft);border:1px solid #CFDDF0;
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:9px;width:7px;height:4px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg);
}
.check-list li strong{display:block;font-size:15px;color:var(--text);font-weight:700;margin-bottom:2px}

/* ===== 流程 ===== */
.step{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);
  transition:box-shadow var(--ease),transform var(--ease);
}
.step:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.step b{display:block;font-size:13px;font-weight:700;color:var(--amber-deep);letter-spacing:1.2px;font-feature-settings:"tnum";margin-bottom:10px}
.step h3{font-size:17px;line-height:1.5;font-weight:700;color:var(--text);margin:0 0 6px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ===== FAQ ===== */
.faq-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:8px 28px;box-shadow:var(--shadow);
}
.faq-card ul.accordion{border:0;background:transparent;margin:0;padding:0}
.faq-card .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq-card .accordion-item:last-child{border-bottom:0}
.faq-card .accordion-title{
  position:relative;display:block;border:0;background:transparent;
  padding:20px 44px 20px 18px;font-size:17px;font-weight:600;line-height:1.6;
  color:var(--text);transition:color var(--ease);
}
.faq-card .accordion-title::before{
  content:"";position:absolute;left:0;top:26px;width:3px;height:20px;border-radius:2px;
  background:var(--amber);opacity:0;transition:opacity var(--ease);
}
.faq-card .accordion-title:hover{color:var(--ink-blue)}
.faq-card .accordion-title:hover::before{opacity:1}
.faq-plus{position:absolute;right:12px;top:26px;width:14px;height:14px;pointer-events:none}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--ink-blue);border-radius:1px}
.faq-plus::before{left:0;top:6px;width:14px;height:2px}
.faq-plus::after{left:6px;top:0;width:2px;height:14px;transition:transform var(--ease),opacity var(--ease)}
.faq-card .accordion-item.is-active .faq-plus::after{opacity:0;transform:rotate(90deg)}
.faq-card .accordion-content{
  padding:0 44px 22px 18px;border:0;background:transparent;
  color:var(--text-2);font-size:15px;line-height:1.85;
}

/* ===== 开通申请 ===== */
.join-card{
  background:var(--ink-blue-soft);border:1px solid #D7E3F3;border-radius:20px;
  padding:40px;
}
.join-copy h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.3px;color:var(--text);margin:12px 0 14px}
.join-copy p{font-size:15px;color:var(--text-2);line-height:1.9;margin-bottom:18px}
.join-points li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.9;margin-bottom:6px}
.join-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--ink-blue)}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow)}
.form-card .field{margin-bottom:18px}
.form-card .field label{
  display:block;font-size:13px;font-weight:600;color:var(--text-2);
  margin-bottom:8px;line-height:1.6;
}
.form-card .field input,
.form-card .field select{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  font-family:inherit;font-size:15px;color:var(--text);background:#fff;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-card .field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235A6B82' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:36px;
}
.form-card .field input:focus,
.form-card .field select:focus{
  outline:none;border-color:var(--ink-blue);
  box-shadow:0 0 0 3px rgba(224,138,46,.45);
}
.form-card .field.has-error input,
.form-card .field.has-error select{border-color:var(--danger)}
.field-error{display:none;font-size:13px;color:var(--danger);line-height:1.6;margin-top:6px}
.field.has-error .field-error{display:block}
.form-card .field input:disabled,
.form-card .field select:disabled{opacity:.55;cursor:not-allowed}
.form-note{font-size:13px;color:var(--text-3);line-height:1.7;margin-top:14px}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--ink-blue-soft);color:var(--ink-blue);font-size:14px;line-height:1.7;
}
.form-ok.is-show{display:block}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-blue-deep);color:#fff;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand__mark{border-color:#fff}
.footer-brand__name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px}
.footer-desc{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px;letter-spacing:.3px}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;
}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero{padding:32px 0 64px}
  .hero-card{padding:36px}
  .hero-title{font-size:34px}
  .section-head h2{font-size:26px}
  .join-copy h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}

@media (max-width:900px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-panel{flex-wrap:wrap}
  .brand{order:1}
  .nav-toggle{order:2}
  .nav-links{order:3;width:100%;flex-direction:column;align-items:stretch;gap:0;margin-top:12px;border-top:1px solid var(--line);padding-top:8px}
  .nav-actions{order:4;width:100%;margin-top:10px}
  .nav-panel.is-open .nav-links{display:flex}
  .nav-panel.is-open .nav-actions{display:flex;gap:10px}
  .nav-panel.is-open .nav-actions .btn{flex:1 1 0;padding:0 10px}
  .nav-item{
    height:48px;border:0;border-bottom:1px solid var(--line);border-radius:0;
    padding:0 4px;font-size:15px;justify-content:flex-start;box-shadow:none;background:#fff;
  }
  .nav-item:last-child{border-bottom:0}
  .nav-item::after{content:"›";margin-left:auto;color:var(--text-3);font-size:18px;line-height:1}
  .nav-item.is-active{background:var(--ink-blue-soft);box-shadow:inset 3px 0 0 var(--amber);border-radius:6px}
  .hero-card::before{display:none}
  .plan-points{grid-template-columns:1fr}
}

@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero-card{padding:26px}
  .hero-title{font-size:30px;letter-spacing:-.2px}
  .hero-sub{font-size:16px}
  .hero-stats{grid-template-columns:1fr;gap:12px;max-width:100%}
  .stat{display:flex;align-items:center;gap:12px}
  .stat b{font-size:22px;margin:0}
  .stat span{margin-top:0}
  .section-head h2{font-size:23px}
  .plan-item{gap:14px}
  .plan-rail{flex:0 0 44px}
  .plan-num{width:44px;height:44px;border-radius:12px;font-size:15px}
  .plan-rail::after{left:21px;top:54px}
  .plan-card{padding:22px}
  .join-card{padding:24px}
  .join-copy h2{font-size:23px}
  .form-card{padding:22px}
  .faq-card{padding:6px 18px}
  .faq-card .accordion-title{font-size:16px;padding:18px 40px 18px 14px}
  .faq-card .accordion-title::before{top:24px}
  .faq-plus{top:24px;right:10px}
  .faq-card .accordion-content{padding:0 40px 20px 14px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
}

@media (max-width:600px){
  .hero-title{font-size:27px;line-height:1.3}
  .section-head h2{font-size:22px}
  .hero-actions .btn{width:100%}
  .plan-item{flex-direction:column;gap:12px}
  .plan-rail{flex:0 0 auto}
  .plan-rail::after{display:none}
  .plan-foot .btn{width:100%}
  .nav-panel{padding:10px 14px}
  .brand__name{font-size:16px}
}