/* roulang page: index */
:root{
  --c-primary:#1657D6;
  --c-primary-hover:#0F46B4;
  --c-primary-active:#0C3A96;
  --c-primary-tint:#E8F0FE;
  --c-accent:#12B3A0;
  --c-accent-tint:#E4F7F4;
  --c-cta:#FF7A2F;
  --c-cta-hover:#F06A1E;
  --c-ink:#0E1726;
  --c-sub:#5A6B80;
  --c-weak:#8C9AAF;
  --c-line:#E3E9F2;
  --c-bg:#F5F7FB;
  --c-card:#FFFFFF;
  --c-deep:#0D1F3C;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,60,.05), 0 8px 20px -10px rgba(13,31,60,.12);
  --sh-2:0 2px 4px rgba(13,31,60,.06), 0 18px 36px -14px rgba(13,31,60,.20);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:0;
}
h1,h2,h3,h4,p,figure,ul,ol,li,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease;}
a:hover{color:var(--c-primary-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(22,87,214,.30);outline-offset:2px;border-radius:6px;
}
img{max-width:100%;display:block;border-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-ink);}
.font-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--bg{background:var(--c-bg);}
.section--white{background:var(--c-card);}
.section--tint{background:var(--c-primary-tint);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-deep);color:#fff;height:38px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{font-family:var(--font-num);font-size:12.5px;color:rgba(255,255,255,.72);letter-spacing:.02em;}
.topbar-tip{font-size:12.5px;color:rgba(255,255,255,.88);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:16px;}
.topbar-link{color:rgba(255,255,255,.82);font-size:12.5px;}
.topbar-link:hover{color:#fff;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-cta{background:var(--c-cta);color:#fff;box-shadow:0 6px 16px -8px rgba(255,122,47,.75);}
.btn-cta:hover{background:var(--c-cta-hover);color:#fff;transform:translateY(-1px);}
.btn-cta:active{background:#DE5F16;transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;}
.btn-primary:active{background:var(--c-primary-active);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-hover);border-color:var(--c-primary-hover);}
.btn-sm{height:36px;padding:0 18px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;text-decoration:underline;text-underline-offset:3px;}
.link-more:hover{gap:9px;}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(13,31,60,.28);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary),#2B7BF0);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;letter-spacing:-.02em;
  box-shadow:0 8px 18px -12px rgba(22,87,214,.9);
}
.brand-name{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.brand:hover .brand-name{color:var(--c-primary);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:68px;padding:0 14px;font-size:15px;font-weight:500;color:var(--c-sub);
  transition:color .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;
  transition:transform .16s ease;border-radius:2px;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-sub);border:1px solid var(--c-line);background:#fff;
}
.icon-btn:hover{color:var(--c-primary);border-color:#C9D9F5;background:var(--c-primary-tint);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ============ Hero ============ */
.hero{
  background:linear-gradient(180deg,#F5F7FB 0%,#EAF1FC 100%);
  padding:72px 0 80px;
  border-bottom:1px solid var(--c-line);
}
.hero-grid{align-items:center;}
.hero-copy{max-width:620px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #D8E4F8;color:var(--c-primary);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;}
.hero h1{
  font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);margin-bottom:18px;
}
.hero-sub{font-size:17px;line-height:1.7;color:var(--c-sub);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-primary-tint);color:var(--c-primary);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
}
.tag--accent{background:var(--c-accent-tint);color:#0B8A7C;}
.hero-note{font-size:12px;color:var(--c-weak);letter-spacing:.01em;}
.hero-note b{color:var(--c-primary);font-family:var(--font-num);font-weight:600;}
.hero-media{
  border:1px solid var(--c-line);border-radius:16px;overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ============ 数据条 ============ */
.stats{background:#fff;border-bottom:1px solid var(--c-line);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:36px 0;}
.stat-item{text-align:left;border-left:3px solid var(--c-primary-tint);padding-left:18px;}
.stat-item:nth-child(2){border-left-color:#BEE3DE;}
.stat-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;}
.stat-label{font-size:12px;color:var(--c-sub);letter-spacing:.02em;margin-top:4px;}

/* ============ 通用板块头 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head-text{max-width:720px;}
.sec-title{font-size:28px;line-height:1.3;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;margin-bottom:10px;}
.sec-desc{font-size:15px;color:var(--c-sub);line-height:1.75;}

/* ============ 权益对比表 ============ */
.compare-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.compare-scroll{overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:640px;}
table.compare thead th{
  position:sticky;top:0;z-index:2;background:#F8FAFE;
  font-size:14px;font-weight:600;color:var(--c-sub);
  text-align:left;padding:16px 24px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
table.compare thead th.col-member{color:var(--c-primary);background:var(--c-primary-tint);position:relative;}
table.compare thead th.col-member::before{
  content:"推荐";position:absolute;top:-11px;left:24px;
  background:var(--c-cta);color:#fff;font-size:11px;font-weight:600;line-height:1;
  padding:5px 10px;border-radius:var(--r-pill);
}
table.compare tbody td{padding:0 24px;height:52px;font-size:15px;color:var(--c-ink);border-bottom:1px solid var(--c-line);vertical-align:middle;}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody td:first-child{color:var(--c-ink);font-weight:500;}
table.compare tbody td.col-member{background:rgba(232,240,254,.55);}
table.compare tbody tr:hover td{background:#F8FAFE;}
table.compare tbody tr:hover td.col-member{background:rgba(232,240,254,.9);}
.cell-icon{display:inline-flex;width:16px;height:16px;margin-right:10px;vertical-align:-2px;}
.mark{display:inline-flex;align-items:center;gap:6px;font-size:14px;}
.mark-yes{color:var(--c-primary);font-weight:600;}
.mark-no{color:var(--c-weak);}
.compare-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border-top:1px solid var(--c-line);background:#FBFCFE;
}
.compare-foot p{font-size:13px;color:var(--c-sub);}

/* ============ 等级阶梯卡 ============ */
.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start;}
.level-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px 24px;position:relative;overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.level-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-primary);}
.level-card:nth-child(2){margin-top:14px;}
.level-card:nth-child(2)::before{background:#2B7BF0;}
.level-card:nth-child(3){margin-top:28px;}
.level-card:nth-child(3)::before{background:var(--c-accent);}
.level-card:nth-child(4){margin-top:42px;}
.level-card:nth-child(4)::before{background:var(--c-cta);}
.level-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.level-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--c-primary-tint);line-height:1;margin-bottom:12px;}
.level-card:nth-child(3) .level-num{color:#D3F1EC;}
.level-card:nth-child(4) .level-num{color:#FFE2CF;}
.level-name{font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:6px;}
.level-badge{
  display:inline-block;font-size:12px;font-weight:600;color:#0B8A7C;background:var(--c-accent-tint);
  padding:3px 10px;border-radius:var(--r-pill);margin-bottom:14px;
}
.level-card:nth-child(4) .level-badge{color:#B5521A;background:#FFEDE2;}
.level-list li{font-size:14px;color:var(--c-sub);line-height:1.7;padding-left:18px;position:relative;margin-bottom:8px;}
.level-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:#C6D6F2;
}

/* ============ 内容卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.content-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card-media{position:relative;overflow:hidden;background:var(--c-primary-tint);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease;}
.content-card:hover .card-media img{transform:scale(1.04);}
.badge{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-tint);padding:3px 10px;border-radius:var(--r-pill);
}
.badge-float{position:absolute;top:12px;left:12px;z-index:2;background:rgba(255,255,255,.94);}
.lock-badge{
  position:absolute;right:12px;bottom:12px;z-index:3;
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:600;color:#fff;background:rgba(13,31,60,.72);
  padding:5px 10px;border-radius:var(--r-pill);
}
.is-locked .card-media::after{
  content:"";position:absolute;inset:0;z-index:2;background:rgba(13,31,60,.30);
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-title a{color:inherit;}
.card-title a:hover{color:var(--c-primary);}
.card-desc{font-size:14px;line-height:1.75;color:var(--c-sub);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-weak);
}
.card-foot .time{font-family:var(--font-num);}
.card-foot a{font-weight:600;font-size:13px;}

/* ============ 最新信息（CMS 区） ============ */
.news-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.news-lead{grid-row:span 3;}
.news-lead .card-media img{aspect-ratio:16/10;}
.news-lead .card-title{font-size:21px;-webkit-line-clamp:3;}
.news-lead .card-desc{-webkit-line-clamp:4;font-size:15px;}
.news-side{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;grid-column:1 / -1;}
.empty-state{
  min-height:220px;border:1.5px dashed #C9D9F5;border-radius:var(--r-card);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:32px;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--c-primary-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;font-family:var(--font-num);
}
.empty-state p{font-size:14px;color:var(--c-sub);}

/* ============ FAQ ============ */
.faq-wrap{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 28px;max-width:900px;margin:0 auto;}
.faq-accordion{background:transparent;border:none;margin:0;}
.faq-accordion .accordion-item{border:none;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-accordion .accordion-item:last-child{border-bottom:none;}
.faq-accordion .accordion-title{
  padding:22px 48px 22px 20px;font-size:17px;font-weight:600;color:var(--c-ink);
  background:transparent;border:none;position:relative;border-left:3px solid transparent;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.faq-accordion .accordion-title::before{display:none;}
.faq-accordion .accordion-title::after{
  content:"";position:absolute;right:20px;top:50%;width:8px;height:8px;
  border-right:2px solid var(--c-weak);border-bottom:2px solid var(--c-weak);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);border-left-color:var(--c-primary);background:#FBFCFE;}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--c-primary);}
.faq-accordion .accordion-content{padding:0 48px 22px 20px;border:none;background:transparent;}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.8;color:var(--c-sub);}

/* ============ CTA 区块 ============ */
.cta-box{
  background:var(--c-primary-tint);border-radius:16px;padding:48px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;
}
.cta-copy h2{font-size:28px;line-height:1.3;font-weight:700;color:var(--c-ink);margin-bottom:14px;}
.cta-copy p{font-size:15px;color:var(--c-sub);line-height:1.8;margin-bottom:22px;}
.cta-points li{font-size:14px;color:var(--c-sub);padding-left:22px;position:relative;margin-bottom:10px;}
.cta-points li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:12px;border-radius:50%;
  background:rgba(22,87,214,.16);box-shadow:inset 0 0 0 3px var(--c-primary);
}
.cta-form{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:28px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;background:#fff;transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:84px;padding:12px 14px;resize:vertical;line-height:1.6;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,87,214,.14);outline:none;
}
.field input::placeholder,.field textarea::placeholder{color:var(--c-weak);}
.form-note{font-size:12px;color:var(--c-weak);margin-top:12px;text-align:center;}
.form-msg{
  display:none;margin-top:12px;font-size:13px;font-weight:600;color:#0B8A7C;
  background:var(--c-accent-tint);border-radius:8px;padding:10px 14px;text-align:center;
}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.7);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .domain{font-family:var(--font-num);color:rgba(255,255,255,.72);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:32px;}
  .level-grid{grid-template-columns:repeat(2,1fr);}
  .level-card:nth-child(2),.level-card:nth-child(3),.level-card:nth-child(4){margin-top:0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .news-layout{grid-template-columns:1fr;}
  .news-lead{grid-row:auto;}
  .cta-box{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;display:none;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:6px 24px 14px;
    border-bottom:1px solid var(--c-line);box-shadow:0 18px 30px -20px rgba(13,31,60,.35);
    justify-content:flex-start;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:auto;min-height:48px;padding:12px 4px;border-bottom:1px solid var(--c-line);font-size:15px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-cta{display:none;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .topbar-tip{display:none;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .sec-title{font-size:22px;}
  .card-grid{grid-template-columns:1fr;}
  .news-side{grid-template-columns:1fr;}
  .level-grid{grid-template-columns:1fr;}
  .faq-wrap{padding:4px 18px;}
  .faq-accordion .accordion-title{font-size:16px;padding:18px 40px 18px 14px;}
  .faq-accordion .accordion-content{padding:0 40px 18px 14px;}
  .cta-box{padding:26px;border-radius:14px;}
  .cta-copy h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .compare-scroll{overflow:visible;}
  table.compare{min-width:0;display:block;}
  table.compare thead{display:none;}
  table.compare tbody{display:block;}
  table.compare tbody tr{
    display:block;border:1px solid var(--c-line);border-radius:12px;
    background:#fff;margin:0 0 16px;padding:6px 0;box-shadow:var(--sh-1);
  }
  table.compare tbody td{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    height:auto;padding:11px 16px;border-bottom:1px dashed var(--c-line);font-size:14px;
  }
  table.compare tbody tr td:last-child{border-bottom:none;}
  table.compare tbody td::before{
    content:attr(data-label);font-size:13px;color:var(--c-weak);font-weight:500;flex:0 0 auto;
  }
  table.compare tbody td.col-member{background:rgba(232,240,254,.5);}
  .compare-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-media img{height:220px;object-fit:cover;}
  .brand-name{font-size:16px;}
  .cta-form{padding:20px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1657D6;
  --c-primary-hover:#0F46B4;
  --c-primary-active:#0C3A96;
  --c-primary-tint:#E8F0FE;
  --c-accent:#12B3A0;
  --c-cta:#FF7A2F;
  --c-cta-hover:#F06A1E;
  --c-ink:#0E1726;
  --c-ink-2:#5A6B80;
  --c-ink-3:#8C9AAF;
  --c-border:#E3E9F2;
  --c-page:#F5F7FB;
  --c-card:#FFFFFF;
  --c-dark:#0D1F3C;
  --c-danger:#D93A3A;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,60,.05),0 8px 20px -10px rgba(13,31,60,.12);
  --sh-2:0 2px 4px rgba(13,31,60,.06),0 18px 36px -14px rgba(13,31,60,.20);
  --container:1200px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;background:transparent}
a:hover{color:var(--c-primary-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(22,87,214,.30);outline-offset:2px}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{padding:0;list-style:none}
.font-num{font-family:var(--font-num);font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 覆盖 Foundation 默认外观 ============ */
.button,.button:hover,.button:focus{font-family:var(--font-sans)}
.accordion,.accordion-title,.accordion-content,.callout,.label{font-family:var(--font-sans)}
.foundation-anchor{display:none}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-dark);color:#fff;font-size:12.5px;height:38px;display:flex;align-items:center}
.topbar-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:14px;color:rgba(255,255,255,.78)}
.topbar-left .domain{font-family:var(--font-num);letter-spacing:.02em;color:#fff;opacity:.92}
.topbar-left .tip{color:rgba(255,255,255,.72)}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:rgba(255,255,255,.86);font-size:12.5px}
.topbar-right a:hover{color:#fff}
.topbar-cta{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:8px;background:var(--c-cta);color:#fff !important;font-weight:600;font-size:12.5px}
.topbar-cta:hover{background:var(--c-cta-hover)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-border);transition:box-shadow .2s}
.site-header.is-stuck{box-shadow:0 6px 20px -12px rgba(13,31,60,.28)}
.nav-inner{display:flex;align-items:center;height:68px;gap:22px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--c-ink);flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#1657D6 0%,#12B3A0 100%);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:14px;letter-spacing:-.02em;
}
.brand-text{font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;color:var(--c-ink-2);text-decoration:none;transition:color .16s;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transition:transform .16s;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-border);background:#fff;
  color:var(--c-ink-2);display:grid;place-items:center;cursor:pointer;transition:all .16s;
}
.nav-search:hover{color:var(--c-primary);border-color:#C7D7F3;background:var(--c-primary-tint)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:transform .18s,box-shadow .18s,background-color .18s,color .18s,border-color .18s;
}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 10px 22px -12px rgba(255,122,47,.75)}
.btn-primary:hover{background:var(--c-cta-hover);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,122,47,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-hover);transform:translateY(-2px)}
.btn-soft{background:var(--c-primary-tint);color:var(--c-primary)}
.btn-soft:hover{background:#D8E5FD;color:var(--c-primary-hover)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink);font-size:17px;cursor:pointer;
}
.mobile-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--c-border);
  box-shadow:0 18px 30px -22px rgba(13,31,60,.45);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;min-height:48px;padding:0 24px;font-size:15px;
  color:var(--c-ink);border-bottom:1px solid var(--c-border);
}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-primary-tint)}

/* ============ 通用板块与标题 ============ */
.section{padding:var(--section-y) 0}
.section-tight{padding:64px 0}
.section-white{background:#fff}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:13px;font-weight:600;margin-bottom:16px;
}
.h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--c-ink-2);font-size:16px}
.h3{font-size:20px;line-height:1.4;font-weight:600}

/* ============ 面包屑 ============ */
.breadcrumb{padding:18px 0 0;font-size:13px;color:var(--c-ink-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#C4CED9}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--c-ink);max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 分类页 Hero ============ */
.cat-hero{
  background:linear-gradient(180deg,#F5F7FB 0%,#EAF1FC 100%);
  border-bottom:1px solid var(--c-border);
  padding:40px 0 56px;
}
.cat-hero-grid{display:flex;align-items:center;gap:48px}
.cat-hero-copy{flex:1 1 58%;min-width:0}
.cat-hero-copy h1{
  font-size:40px;line-height:1.2;font-weight:700;letter-spacing:0;margin-top:18px;
}
.cat-hero-copy .lead{margin-top:16px;font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-border);
  font-size:13px;color:var(--c-ink-2);
}
.tag i{color:var(--c-accent);font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cat-hero-media{flex:1 1 42%;min-width:0}
.cat-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;
  border:1px solid var(--c-border);box-shadow:var(--sh-1);
}

/* ============ 分栏 ============ */
.layout-split{display:flex;gap:28px;align-items:flex-start}
.layout-main{flex:1 1 66%;min-width:0}
.layout-side{flex:0 0 320px;position:sticky;top:96px}

/* ============ 图文块 ============ */
.feature-block{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;margin-bottom:28px;
  transition:box-shadow .2s,transform .2s;
}
.feature-block:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.feature-block img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.feature-body{padding:26px 28px 28px}
.feature-body h3{font-size:20px;font-weight:600;line-height:1.4}
.feature-body p{margin-top:12px;color:var(--c-ink-2);font-size:15.5px}
.check-list{margin-top:18px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-2);line-height:1.7}
.check-list i{color:var(--c-accent);margin-top:5px;font-size:13px}

/* ============ 侧栏卡片 ============ */
.side-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;margin-bottom:20px;
}
.side-card h3{font-size:16px;font-weight:600;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-primary);font-size:14px}
.side-list{margin-top:16px;display:grid;gap:10px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:10px;background:var(--c-page);
  font-size:14px;color:var(--c-ink);transition:all .16s;
}
.side-list a:hover{background:var(--c-primary-tint);color:var(--c-primary);transform:translateX(2px)}
.side-list a i{font-size:12px;color:var(--c-ink-3)}
.side-list a:hover i{color:var(--c-primary)}
.side-points{margin-top:16px;display:grid;gap:14px}
.side-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.65}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-top:9px;flex:0 0 auto}
.side-stats{display:flex;gap:14px;margin-top:16px}
.side-stat{flex:1;background:var(--c-page);border-radius:12px;padding:14px 12px;text-align:center}
.side-stat b{display:block;font-family:var(--font-num);font-size:22px;color:var(--c-primary);line-height:1.2}
.side-stat span{font-size:12px;color:var(--c-ink-3)}

/* ============ 时间轴 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.step{
  position:relative;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px 24px;transition:box-shadow .2s,transform .2s;
}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.step::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--c-primary);border-radius:var(--r-card) var(--r-card) 0 0}
.step:nth-child(2)::before{background:var(--c-accent)}
.step-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--c-primary);line-height:1}
.step:nth-child(2) .step-num{color:var(--c-accent)}
.step h3{margin-top:14px;font-size:17px;font-weight:600}
.step p{margin-top:10px;font-size:14.5px;color:var(--c-ink-2)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border:0;background:transparent;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-ink);position:relative;transition:color .16s;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--c-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-q i{font-size:14px;color:var(--c-ink-3);transition:transform .2s}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* ============ CTA ============ */
.cta-band{
  background:var(--c-primary-tint);border-radius:16px;padding:48px 40px;
  display:flex;gap:48px;align-items:center;
}
.cta-copy{flex:1 1 52%;min-width:0}
.cta-copy h2{font-size:28px;line-height:1.3;font-weight:700}
.cta-copy p{margin-top:14px;color:var(--c-ink-2);font-size:16px;max-width:520px}
.cta-form{flex:1 1 48%;min-width:0;background:#fff;border:1px solid var(--c-border);border-radius:14px;box-shadow:var(--sh-1);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select{
  width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;font-size:14.5px;font-family:inherit;color:var(--c-ink);transition:border-color .16s,box-shadow .16s;
}
.field input::placeholder{color:var(--c-ink-3)}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,87,214,.14);outline:none}
.form-note{margin-top:12px;font-size:12.5px;color:var(--c-ink-3);line-height:1.6}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#1657D6 0%,#12B3A0 100%);display:grid;place-items:center;color:#fff;font-family:var(--font-num);font-size:13px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.70)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.02em}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--section-y:72px}
  .cat-hero-grid{flex-direction:column;gap:32px;align-items:stretch}
  .cat-hero-copy h1{font-size:34px}
  .cat-hero-media img{aspect-ratio:16/9}
  .layout-split{flex-direction:column}
  .layout-side{position:static;width:100%;flex:1 1 auto}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:stretch;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-tools .btn{display:none}
}
@media (max-width:640px){
  :root{--section-y:56px}
  .container{padding:0 18px}
  .topbar-left .tip{display:none}
  .topbar-inner{font-size:12px}
  .nav-inner{height:60px;gap:12px}
  .brand-text{font-size:15px}
  .cat-hero{padding:28px 0 40px}
  .cat-hero-copy h1{font-size:28px;margin-top:14px}
  .cat-hero-copy .lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .h2{font-size:22px}
  .steps{grid-template-columns:1fr}
  .feature-body{padding:22px 20px 24px}
  .cta-band{padding:32px 22px;border-radius:14px}
  .cta-copy h2{font-size:22px}
  .cta-form{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .side-stats{flex-direction:column}
}

/* roulang page: article */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#1657D6;
  --c-primary-hover:#0F46B4;
  --c-primary-active:#0C3A96;
  --c-primary-tint:#E8F0FE;
  --c-accent:#12B3A0;
  --c-cta:#FF7A2F;
  --c-cta-hover:#F06A1E;
  --c-ink:#0E1726;
  --c-ink-2:#5A6B80;
  --c-ink-3:#8C9AAF;
  --c-border:#E3E9F2;
  --c-bg:#F5F7FB;
  --c-card:#FFFFFF;
  --c-dark:#0D1F3C;
  --c-danger:#D93A3A;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,-apple-system,sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(13,31,60,.05), 0 8px 20px -10px rgba(13,31,60,.12);
  --sh-2:0 2px 4px rgba(13,31,60,.06), 0 18px 36px -14px rgba(13,31,60,.20);
  --sh-3:0 10px 30px -12px rgba(13,31,60,.28);
  --gutter:24px;
  --sec-pad:88px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(22,87,214,.30);border-radius:8px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
::selection{background:rgba(22,87,214,.16);}

/* ===================== 容器 & 通用 ===================== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
.font-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.section{padding:var(--sec-pad) 0;}
.section--tight{padding:56px 0;}
.section--soft{background:linear-gradient(180deg,#F5F7FB 0%,#EAF1FC 100%);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
.section-head h2{font-size:28px;line-height:1.3;}
.section-head p{margin-top:8px;font-size:15px;color:var(--c-ink-2);}
.section-more{font-size:15px;font-weight:600;white-space:nowrap;}
.section-more i{margin-left:6px;font-size:12px;}

/* ===================== 顶部信息条 ===================== */
.topbar{background:var(--c-dark);color:#fff;font-size:12.5px;}
.topbar-inner{display:flex;align-items:center;gap:16px;height:38px;}
.topbar-domain{font-family:var(--font-num);letter-spacing:.04em;color:#fff;opacity:.92;}
.topbar-note{color:rgba(255,255,255,.68);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:18px;}
.topbar-actions a{color:rgba(255,255,255,.82);font-size:12.5px;}
.topbar-actions a:hover{color:#fff;}
.topbar-cta{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  background:var(--c-cta);color:#fff !important;border-radius:6px;font-weight:600;
}
.topbar-cta:hover{background:var(--c-cta-hover);color:#fff;}

/* ===================== 主导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);flex:0 0 auto;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),#3B7BEC);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;letter-spacing:-.02em;
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;color:var(--c-ink-2);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:transparent;transition:background-color .18s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{background:rgba(22,87,214,.35);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{background:var(--c-primary);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:#C9DCFB;background:var(--c-primary-tint);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:all .18s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-cta{background:var(--c-cta);color:#fff;}
.btn-cta:hover{background:var(--c-cta-hover);color:#fff;transform:translateY(-1px);}
.btn-cta:active{background:#DE5C14;transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);color:var(--c-primary-hover);border-color:var(--c-primary-hover);}
.btn-block{width:100%;}

/* ===================== 面包屑 ===================== */
.crumbs-bar{padding:18px 0 4px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.crumbs a{color:var(--c-ink-2);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:#C3CCD9;}
.crumbs .current{color:var(--c-ink-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===================== 文章外壳 ===================== */
.article-section{padding:16px 0 72px;}
.article-shell{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:48px;
}
.article-head{max-width:780px;margin:0 auto;padding-bottom:28px;border-bottom:1px solid var(--c-border);}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:13px;font-weight:600;
}
.badge--accent{background:rgba(18,179,160,.14);color:#0E8E7F;}
.article-title{font-size:32px;line-height:1.35;font-weight:700;margin:16px 0 18px;letter-spacing:-.01em;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD4E0;}
.article-meta .meta-strong{color:var(--c-ink-2);}

/* ===================== 文章布局 + 目录 ===================== */
.article-layout{display:grid;grid-template-columns:248px minmax(0,1fr);gap:48px;align-items:start;padding-top:40px;}
.toc{position:sticky;top:104px;border:1px solid var(--c-border);border-radius:var(--r-card);background:#fff;padding:20px 18px;box-shadow:var(--sh-1);}
.toc-title{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;font-weight:700;color:var(--c-ink);margin-bottom:12px;
}
.toc-title i{color:var(--c-primary);font-size:13px;}
.toc-toggle{display:none;border:1px solid var(--c-border);background:#fff;border-radius:8px;width:30px;height:30px;color:var(--c-ink-2);}
.toc-list{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc-list a{
  display:block;padding:8px 10px 8px 14px;font-size:14px;line-height:1.5;color:var(--c-ink-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:all .16s ease;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.toc-list a.is-current{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);background:var(--c-primary-tint);}
.toc-tip{margin-top:14px;padding-top:14px;border-top:1px dashed var(--c-border);font-size:12.5px;line-height:1.7;color:var(--c-ink-3);}

/* ===================== 正文排版 ===================== */
.article-main{min-width:0;}
.article-body{max-width:780px;margin:0 auto;font-size:16px;line-height:1.9;color:#22303F;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--c-ink);
  margin:40px 0 16px;padding-left:14px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;color:var(--c-ink);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;color:var(--c-ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;padding-left:2px;}
.article-body ul li::marker{color:var(--c-primary);}
.article-body ol li::marker{color:var(--c-primary);font-family:var(--font-num);font-weight:600;}
.article-body strong{color:var(--c-ink);font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-primary-tint);
  border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:#3A4759;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:22px 0;width:100%;}
.article-body a{font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.article-table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--c-border);border-radius:var(--r-img);}
.article-body table{width:100%;min-width:520px;border-collapse:collapse;font-size:15px;}
.article-body thead th{background:#F1F5FC;color:var(--c-ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-border);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0;}

/* 空态 */
.article-empty{
  max-width:780px;margin:0 auto;padding:64px 24px;text-align:center;
  border:1.5px dashed #C9D6E8;border-radius:var(--r-card);background:#FBFCFE;
}
.article-empty .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:var(--c-primary-tint);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px;
}
.article-empty h2{font-size:20px;margin-bottom:10px;}
.article-empty p{font-size:15px;color:var(--c-ink-2);margin-bottom:22px;}

/* ===================== 标签行 ===================== */
.tag-block{max-width:780px;margin:40px auto 0;padding-top:26px;border-top:1px solid var(--c-border);}
.tag-block .tag-label{font-size:13px;color:var(--c-ink-3);margin-right:6px;}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:13px;font-weight:500;
  transition:all .16s ease;
}
.tag:hover{background:var(--c-primary);color:#fff;}

/* ===================== 上下篇 ===================== */
.pager{max-width:780px;margin:32px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.pager-card{
  display:block;padding:20px 22px;border:1px solid var(--c-border);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--sh-1);transition:all .2s ease;min-width:0;
}
.pager-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#CFE0FA;}
.pager-card .pager-key{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--c-ink-3);margin-bottom:8px;}
.pager-card .pager-title{
  font-size:15px;font-weight:600;color:var(--c-ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pager-card:hover .pager-title{color:var(--c-primary);}
.pager-card--next{text-align:right;}
.pager-card--next .pager-key{justify-content:flex-end;}

/* ===================== 相关推荐 ===================== */
.related-grid{display:flex;flex-wrap:wrap;gap:28px;}
.card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;height:100%;min-width:0;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFE0FA;}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8F0FE;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);box-shadow:var(--sh-1);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-title{
  font-size:17px;line-height:1.55;font-weight:700;color:var(--c-ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-title{color:var(--c-primary);}
.card-text{
  font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-3);}
.card-foot .read-link{font-weight:600;color:var(--c-primary);}
.card-foot .read-link i{font-size:11px;margin-left:4px;}

/* ===================== 会员 CTA ===================== */
.member-cta{background:var(--c-primary-tint);border-radius:16px;padding:48px;}
.member-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.member-cta h2{font-size:28px;line-height:1.35;margin-bottom:14px;}
.member-cta .cta-desc{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin-bottom:22px;}
.cta-points{display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#37465B;}
.cta-points i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.cta-form{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);border:1px solid #D8E5FA;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink-2);margin-bottom:8px;}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--c-border);border-radius:10px;
  background:#FBFCFE;color:var(--c-ink);transition:all .18s ease;
}
.form-field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.6;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(22,87,214,.14);outline:none;
}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin-top:12px;text-align:center;}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;color:rgba(255,255,255,.92);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.70);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.04em;color:rgba(255,255,255,.7);}

/* ===================== 响应式 ===================== */
@media (max-width:1024px){
  :root{--sec-pad:64px;--gutter:20px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--c-border);box-shadow:var(--sh-2);
    padding:8px 20px 16px;display:none;margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{height:48px;width:100%;padding:0 4px;}
  .nav-link::after{left:4px;right:4px;}
  .nav-wrap{gap:12px;}
  .nav-actions .icon-btn{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .toc{position:static;top:auto;padding:14px 16px;}
  .toc-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .toc-list{display:none;}
  .toc.is-open .toc-list{display:flex;}
  .toc-tip{display:none;}
  .article-shell{padding:32px;}
  .member-cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .related-grid{gap:20px;}
}
@media (max-width:768px){
  :root{--sec-pad:52px;--gutter:18px;}
  .topbar-note{display:none;}
  .brand-text{font-size:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:26px;}
  .section-head h2{font-size:22px;}
  .article-shell{padding:22px;border-radius:12px;}
  .article-title{font-size:24px;margin:12px 0 14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .pager{grid-template-columns:1fr;}
  .pager-card--next{text-align:left;}
  .pager-card--next .pager-key{justify-content:flex-start;}
  .member-cta{padding:28px 20px;border-radius:14px;}
  .member-cta h2{font-size:22px;}
  .cta-form{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding-top:48px;margin-top:64px;}
}
@media (max-width:520px){
  .article-shell{padding:18px;border-radius:12px;}
  .article-title{font-size:22px;}
  .card-body{padding:18px;}
  .crumbs .current{max-width:180px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .topbar-actions{gap:12px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1657D6;
  --c-primary-hover:#0F46B4;
  --c-primary-active:#0C3A96;
  --c-primary-tint:#E8F0FE;
  --c-accent:#12B3A0;
  --c-accent-tint:#E4F7F4;
  --c-cta:#FF7A2F;
  --c-cta-hover:#F06A1E;
  --c-ink:#0E1726;
  --c-ink-2:#5A6B80;
  --c-ink-3:#8C9AAF;
  --c-border:#E3E9F2;
  --c-page:#F5F7FB;
  --c-card:#FFFFFF;
  --c-dark:#0D1F3C;
  --c-danger:#D93A3A;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(13,31,60,.05),0 8px 20px -10px rgba(13,31,60,.12);
  --sh-2:0 2px 4px rgba(13,31,60,.06),0 18px 36px -14px rgba(13,31,60,.20);
  --space-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease}
a:hover,a:focus{color:var(--c-primary-hover)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--c-ink)}
::selection{background:var(--c-primary-tint);color:var(--c-primary-active)}
:focus-visible{outline:3px solid rgba(22,87,214,.30);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.font-num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#fff;height:38px;display:flex;align-items:center;font-size:12.5px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;color:rgba(255,255,255,.72)}
.topbar-domain{font-family:var(--font-num);letter-spacing:.02em;color:#fff}
.topbar-hint{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:16px;flex-shrink:0}
.topbar-right a{color:rgba(255,255,255,.82);font-size:12.5px}
.topbar-right a:hover{color:#fff}
.btn-mini{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-cta);color:#fff;font-size:12.5px;font-weight:600;
}
.btn-mini:hover,.btn-mini:focus{background:var(--c-cta-hover);color:#fff}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 6px 24px -14px rgba(13,31,60,.28)}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--c-primary),#2E7BEE);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 6px 14px -8px rgba(22,87,214,.75);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:68px;padding:0 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color .16s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:center;
  transition:transform .16s ease;
}
.nav-link:hover,.nav-link:focus{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-ink-2);border:1px solid var(--c-border);background:#fff;transition:all .16s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(22,87,214,.4);background:var(--c-primary-tint)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-border);color:var(--c-ink);align-items:center;justify-content:center}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
  white-space:nowrap;
}
.btn-cta{background:var(--c-cta);color:#fff;box-shadow:0 10px 22px -14px rgba(255,122,47,.9)}
.btn-cta:hover,.btn-cta:focus{background:var(--c-cta-hover);color:#fff;transform:translateY(-2px)}
.btn-cta:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-tint);color:var(--c-primary-hover)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.link-more:hover{gap:10px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space-sec) 0}
.section-tint{background:var(--c-page)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--c-primary);
  background:var(--c-primary-tint);border-radius:999px;padding:5px 12px;margin-bottom:16px;
}
h1{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:600}
.section-head p{margin-top:14px;color:var(--c-ink-2);font-size:16px}
.text-sub{color:var(--c-ink-2);font-size:15px}

/* ---------- Hero ---------- */
.page-hero{
  background:linear-gradient(180deg,#F5F7FB 0%,#EAF1FC 100%);
  padding:52px 0 64px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span[aria-current]{color:var(--c-ink);font-weight:500}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.page-hero h1{margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.lede{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--c-primary);
  background:#fff;border:1px solid rgba(22,87,214,.18);
  border-radius:999px;padding:6px 13px;
}
.pill.accent{color:#0A7F72;border-color:rgba(18,179,160,.24);background:var(--c-accent-tint)}
.hero-figure{
  border-radius:16px;overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--sh-1);background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.hero-figure figcaption{
  font-size:12.5px;color:var(--c-ink-3);padding:10px 14px;border-top:1px solid var(--c-border);background:#fff;
}

/* ---------- 权益说明图文块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split-media{border-radius:16px;overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-1);background:#fff}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--c-ink-2)}
.check-list i{color:var(--c-accent);margin-top:5px;font-size:14px}
.check-list strong{color:var(--c-ink);font-weight:600}

/* ---------- 权益对照表 ---------- */
.table-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{width:100%;overflow-x:auto}
.compare-table{width:100%;border-collapse:collapse;min-width:720px}
.compare-table th,.compare-table td{
  padding:0 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--c-border);
}
.compare-table thead th{
  height:56px;font-size:14px;font-weight:600;color:var(--c-ink-2);
  background:#FBFCFE;position:sticky;top:0;z-index:2;white-space:nowrap;
}
.compare-table thead th.is-member{color:var(--c-primary);background:var(--c-primary-tint)}
.compare-table tbody tr{height:52px}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover td{background:#FAFCFF}
.compare-table tbody tr:hover td.is-member{background:#E2EDFD}
.compare-table td:first-child{color:var(--c-ink);font-weight:600}
.compare-table td{color:var(--c-ink-2)}
.compare-table td.is-member{background:#F2F7FE;color:var(--c-primary-active);font-weight:600}
.rec-badge{
  display:inline-flex;align-items:center;height:20px;padding:0 9px;margin-left:8px;
  border-radius:999px;background:var(--c-cta);color:#fff;font-size:11.5px;font-weight:600;
}
.table-note{margin-top:18px;font-size:13.5px;color:var(--c-ink-3)}

/* ---------- 等级阶梯卡（两列错位） ---------- */
.level-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.level-card{
  position:relative;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.level-card::before{content:"";position:absolute;left:0;top:0;right:0;height:4px;background:var(--c-primary)}
.level-card.tone-accent::before{background:var(--c-accent)}
.level-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.level-card:nth-child(even){margin-top:26px}
.level-top{display:flex;align-items:baseline;gap:12px;margin-bottom:6px}
.level-num{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--c-primary);line-height:1}
.level-card.tone-accent .level-num{color:var(--c-accent)}
.level-name{font-size:19px;font-weight:700}
.level-need{font-size:13px;color:var(--c-ink-3);margin-bottom:18px}
.level-list{display:grid;gap:11px}
.level-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.level-list i{color:var(--c-accent);font-size:13px;margin-top:6px}
.level-flag{
  position:absolute;right:18px;top:18px;font-size:12px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-tint);border-radius:999px;padding:4px 11px;
}
.level-card.tone-accent .level-flag{color:#0A7F72;background:var(--c-accent-tint)}

/* ---------- 流程时间轴 ---------- */
.step-list{display:grid;gap:0;counter-reset:step}
.step-item{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:26px 0;border-bottom:1px dashed var(--c-border);
}
.step-item:first-child{padding-top:0}
.step-item:last-child{border-bottom:0;padding-bottom:0}
.step-num{
  width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:16px;
  background:var(--c-primary-tint);color:var(--c-primary);
}
.step-body h3{margin-bottom:8px}
.step-body p{font-size:15px;color:var(--c-ink-2)}

/* ---------- 数值条 ---------- */
.stat-strip{background:var(--c-page);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:38px 0}
.stat-item{text-align:left}
.stat-value{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-primary)}
.stat-label{font-size:13px;color:var(--c-ink-2);margin-top:4px}

/* ---------- FAQ ---------- */
.faq-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.accordion{margin:0;border:0;background:transparent}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--c-border)}
.accordion .accordion-item:last-child{border-bottom:0}
.accordion .accordion-title{
  display:block;position:relative;padding:22px 60px 22px 24px;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;
  border:0;border-left:3px solid transparent;background:#fff;transition:background-color .16s ease,border-color .16s ease,color .16s ease;
}
.accordion .accordion-title:hover{background:#FAFCFF;color:var(--c-primary)}
.accordion .accordion-title::before{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--c-ink-3);transition:transform .2s ease,color .16s ease;
}
.accordion .accordion-item.is-active .accordion-title{border-left-color:var(--c-primary);color:var(--c-primary)}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg);color:var(--c-primary)}
.accordion .accordion-content{padding:0 24px 24px 27px;border:0;background:#fff}
.accordion .accordion-content p{font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- CTA 表单 ---------- */
.cta-panel{
  background:var(--c-primary-tint);border-radius:16px;padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-panel h2{margin-bottom:16px}
.cta-panel .cta-points{display:grid;gap:12px;margin-top:24px}
.cta-panel .cta-points li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-2)}
.cta-panel .cta-points i{color:var(--c-primary);margin-top:5px;font-size:14px}
.member-form{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field:last-of-type{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  background:#fff;transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:88px;padding:12px 14px;line-height:1.6;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--c-ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,87,214,.14);
}
.field.has-error input{border-color:var(--c-danger);box-shadow:0 0 0 4px rgba(217,58,58,.12)}
.field .err{display:none;font-size:12.5px;color:var(--c-danger);margin-top:6px}
.field.has-error .err{display:block}
.form-tip{font-size:12.5px;color:var(--c-ink-3);margin-top:14px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--c-primary),#2E7BEE);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;box-shadow:none;
}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:rgba(255,255,255,.9);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover,.footer-col a:focus{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.02em}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--space-sec:72px}
  h1{font-size:32px}
  h2{font-size:24px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure img{aspect-ratio:16/9}
  .split{grid-template-columns:1fr;gap:30px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;padding:32px 0}
  .menu-toggle{display:inline-flex}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;margin:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--c-border);
    box-shadow:0 18px 30px -20px rgba(13,31,60,.4);
    padding:8px 16px 14px;display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{height:48px;padding:0 12px;border-radius:10px;font-size:15.5px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--c-primary-tint)}
  .site-header{position:relative}
  .nav-inner{height:64px;gap:16px}
}
@media (max-width:640px){
  :root{--space-sec:56px}
  .container{padding:0 18px}
  h1{font-size:26px}
  h2{font-size:22px}
  h3{font-size:18px}
  .lede{font-size:15.5px}
  .page-hero{padding:32px 0 44px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-figure img{height:220px;object-fit:cover}
  .level-grid{grid-template-columns:1fr}
  .level-card:nth-child(even){margin-top:0}
  .level-card{padding:22px}
  .step-item{grid-template-columns:48px 1fr;gap:16px;padding:20px 0}
  .step-num{width:40px;height:40px;border-radius:12px;font-size:14px}
  .cta-panel{padding:24px;border-radius:14px}
  .member-form{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-value{font-size:24px}
  .accordion .accordion-title{padding:18px 48px 18px 18px;font-size:16px}
  .accordion .accordion-title::before{right:18px}
  .accordion .accordion-content{padding:0 18px 20px}
  .topbar-hint{display:none}
  .topbar{font-size:12px}
  /* 移动端对照表转堆叠卡 */
  .table-scroll{overflow:visible}
  .compare-table{min-width:0;display:block}
  .compare-table thead{display:none}
  .compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%}
  .compare-table tbody tr{
    height:auto;background:#fff;border:1px solid var(--c-border);
    border-radius:var(--r-card);margin-bottom:14px;padding:6px 0 10px;box-shadow:var(--sh-1);
  }
  .compare-table tbody tr:hover td{background:transparent}
  .compare-table td{
    border-bottom:1px dashed var(--c-border);
    padding:9px 18px;display:flex;justify-content:space-between;gap:16px;align-items:baseline;
    background:transparent;
  }
  .compare-table td::before{content:attr(data-label);font-size:13px;color:var(--c-ink-3);flex-shrink:0}
  .compare-table td:first-child{
    display:block;padding:10px 18px 12px;font-size:16px;font-weight:700;
    border-bottom:1px solid var(--c-border);
  }
  .compare-table td:first-child::before{display:none}
  .compare-table td:last-child{border-bottom:0}
  .compare-table td.is-member{background:var(--c-primary-tint);border-radius:0;font-weight:600}
  .rec-badge{margin-left:6px}
}
@media (min-width:1441px){
  .container{max-width:1200px}
}

/* roulang page: category3 */
:root{
  --c-primary:#1657D6;
  --c-primary-h:#0F46B4;
  --c-primary-a:#0C3A96;
  --c-tint:#E8F0FE;
  --c-accent:#12B3A0;
  --c-cta:#FF7A2F;
  --c-cta-h:#F06A1E;
  --c-ink:#0E1726;
  --c-ink2:#5A6B80;
  --c-ink3:#8C9AAF;
  --c-line:#E3E9F2;
  --c-bg:#F5F7FB;
  --c-card:#FFFFFF;
  --c-dark:#0D1F3C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(13,31,60,.05),0 8px 20px -10px rgba(13,31,60,.12);
  --sh-2:0 2px 4px rgba(13,31,60,.06),0 18px 36px -14px rgba(13,31,60,.20);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-h)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{list-style:none;padding:0}
.num,.font-num{font-family:var(--font-num)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--c-bg)}
.section-head{margin-bottom:40px}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--c-ink)}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--c-ink2);max-width:760px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* 顶部信息条 */
.topbar{background:var(--c-dark);color:#fff;font-size:12.5px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{font-family:var(--font-num);letter-spacing:.02em;color:rgba(255,255,255,.88);white-space:nowrap}
.topbar-note{color:rgba(255,255,255,.62);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.topbar-link{color:rgba(255,255,255,.78);font-size:12.5px}
.topbar-link:hover{color:#fff}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-align:center;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-cta{background:var(--c-cta);color:#fff}
.btn-cta:hover{background:var(--c-cta-h);color:#fff}
.btn-cta:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-tint);color:var(--c-primary-h)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-xs{height:30px;padding:0 14px;font-size:12.5px;border-radius:8px}
.btn-lg{height:50px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,87,214,.30)}

/* 头部与导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(13,31,60,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-size:18px;font-weight:700;flex:0 0 auto}
.brand:hover{color:var(--c-primary)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#3E7BEA);
  color:#fff;font-family:var(--font-num);font-size:15px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;letter-spacing:.02em;
}
.brand-text{letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;color:var(--c-ink2);font-size:15px;font-weight:500}
.nav-link:hover{color:var(--c-primary)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:#C9D8F5;background:var(--c-tint)}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,87,214,.25)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(22,87,214,.25)}
.nav-drawer{display:none;border-top:1px solid var(--c-line);background:#fff}
.nav-drawer.is-open{display:block}
.nav-drawer a{display:block;padding:15px 24px;border-bottom:1px solid var(--c-line);color:var(--c-ink2);font-size:16px}
.nav-drawer a:hover{background:var(--c-bg);color:var(--c-primary)}
.nav-drawer a.is-active{color:var(--c-primary);font-weight:600;background:#F8FAFF}

/* Hero */
.page-hero{
  position:relative;overflow:hidden;padding:76px 0 68px;
  background-color:#EEF4FF;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center right;background-repeat:no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 48%,rgba(245,247,251,.62) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{max-width:780px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--c-tint);color:var(--c-primary);font-size:13px;font-weight:600;
}
.page-hero h1{margin-top:18px;font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.01em;color:var(--c-ink)}
.hero-lead{margin-top:18px;font-size:16px;line-height:1.85;color:var(--c-ink2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:26px;margin-top:30px;font-size:13px;color:var(--c-ink3)}
.hero-meta b{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--c-ink);margin-right:6px}
.hero-chips{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px}

/* 胶囊标签 */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;
  background:var(--c-tint);color:var(--c-primary);font-size:13.5px;font-weight:500;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.chip:hover{background:#D8E5FD;color:var(--c-primary-h);transform:translateY(-1px)}
.chip-accent{background:rgba(18,179,160,.13);color:#0E8E7E}
.chip-accent:hover{background:rgba(18,179,160,.2);color:#0B7A6C}

/* 栅格与卡片 */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-14px;margin-right:-14px;margin-bottom:-28px}
.grid-x > .cell{display:flex;flex-direction:column;padding-left:14px;padding-right:14px;margin-bottom:28px}
.grid-x > .cell > *{width:100%}

.tile{
  display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tile:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tile-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-tint)}
.tile-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tile:hover .tile-thumb img{transform:scale(1.04)}
.tile-thumb.is-portrait{aspect-ratio:3/4}
.tile-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;padding:4px 12px;border-radius:999px;
  background:var(--c-tint);color:var(--c-primary);font-size:12.5px;font-weight:600;
}
.badge-accent{background:rgba(18,179,160,.13);color:#0E8E7E}
.tile-title{margin-top:14px;font-size:19px;line-height:1.45;font-weight:600;color:var(--c-ink);transition:color .18s ease}
.tile:hover .tile-title{color:var(--c-primary)}
.tile-excerpt{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-ink2);flex:1}
.tile-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink3);
}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:13.5px;font-weight:600}
.link-more:hover{color:var(--c-primary-h);text-decoration:underline;text-underline-offset:3px}
.tile-feature .tile-title{font-size:24px;line-height:1.4}
.tile-feature .tile-excerpt{font-size:15px}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:12px;flex:1}
.mini-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.7;color:var(--c-ink2)}
.mini-list li i{color:var(--c-accent);margin-top:5px;font-size:12px}

/* 时间线 */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.tl-item{
  background:#fff;border:1px solid var(--c-line);border-top:4px solid var(--c-primary);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tl-step{font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--c-primary)}
.tl-item h3{margin-top:12px;font-size:18px;font-weight:600;color:var(--c-ink)}
.tl-item p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--c-ink2)}

/* 热度榜 */
.rank-list{display:flex;flex-direction:column;gap:14px}
.rank-item{
  display:flex;align-items:center;gap:18px;padding:18px 22px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rank-item:hover{transform:translateX(4px);box-shadow:var(--sh-2)}
.rank-no{flex:0 0 40px;text-align:center;font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-ink3)}
.rank-item:nth-child(1) .rank-no,
.rank-item:nth-child(2) .rank-no,
.rank-item:nth-child(3) .rank-no{color:var(--c-cta)}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:16px;font-weight:600;color:var(--c-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-sub{margin-top:6px;font-size:13px;color:var(--c-ink3)}
.rank-bar{margin-top:10px;height:6px;border-radius:999px;background:var(--c-bg);overflow:hidden}
.rank-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}
.rank-score{flex:0 0 auto;font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--c-primary)}

/* 看点卡 */
.point-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.point-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-tint);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
}
.point-card h3{margin-top:18px;font-size:18px;font-weight:600;color:var(--c-ink)}
.point-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-ink2)}

/* 入口卡 */
.entry-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:12px;height:100%;
  padding:28px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C9D8F5}
.entry-card h3{font-size:18px;font-weight:600;color:var(--c-ink)}
.entry-card p{font-size:14.5px;line-height:1.8;color:var(--c-ink2);flex:1}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:box-shadow .2s ease,border-left-color .2s ease;border-left:3px solid transparent;
}
.faq-item.is-open{box-shadow:var(--sh-1);border-left-color:var(--c-primary)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(22,87,214,.20)}
.faq-q i{color:var(--c-ink3);font-size:14px;transition:transform .2s ease,color .2s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink2)}

/* CTA */
.cta-panel{
  background:var(--c-tint);border-radius:16px;padding:48px 40px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.cta-panel h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--c-ink)}
.cta-panel .cta-text p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-ink2);max-width:520px}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--c-ink2)}
.cta-points li i{color:var(--c-primary);margin-top:5px;font-size:12px}
.cta-form{background:#fff;border-radius:14px;padding:26px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:8px;font-size:13.5px;font-weight:600;color:var(--c-ink)}
.field input{
  width:100%;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:10px;
  font-size:15px;font-family:inherit;color:var(--c-ink);background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:var(--c-ink3)}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,87,214,.14)}
.form-note{margin-top:12px;font-size:12.5px;color:var(--c-ink3);line-height:1.7}
.form-tip{display:none;margin-top:12px;font-size:13.5px;font-weight:600;color:#0E8E7E}

/* 页脚 */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.7);font-size:14px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h3{margin-bottom:16px;font-size:15px;font-weight:600;color:rgba(255,255,255,.92)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .domain{font-family:var(--font-num);letter-spacing:.02em}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:72px 0}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-hero h1{font-size:32px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .grid-x{margin-left:-9px;margin-right:-9px}
  .grid-x > .cell{padding-left:9px;padding-right:9px;margin-bottom:18px}
  .grid-x{margin-bottom:-18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:22px}
  .topbar-note{display:none}
  .topbar-right{gap:10px}
  .header-inner{gap:12px}
  .header-actions .btn-sm{display:none}
  .icon-btn{display:none}
  .page-hero{padding:48px 0 42px}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:16px;font-size:12.5px}
  .hero-meta b{font-size:18px}
  .timeline{grid-template-columns:1fr;gap:16px}
  .rank-item{gap:12px;padding:16px}
  .rank-no{flex:0 0 30px;font-size:18px}
  .rank-main h3{white-space:normal}
  .cta-panel{padding:28px 20px}
  .cta-panel h2{font-size:22px}
  .cta-form{padding:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}