/* roulang page: index */
:root{
  --brand:#2159C9;
  --brand-deep:#123A82;
  --brand-light:#E8EFFE;
  --teal:#12B3A0;
  --coral:#FF5A3C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6EBF4;
  --text:#1B2436;
  --muted:#5A6B85;
  --faint:#93A1B8;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(20,45,90,.08);
  --sh-hover:0 16px 36px rgba(20,45,90,.14);
  --sh-float:0 6px 20px rgba(20,45,90,.08);
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-deep);text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding-left:0;list-style:none;}
:focus-visible{outline:3px solid rgba(33,89,201,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1180px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:sticky;top:0;z-index:1050;padding:16px 0 0;}
.nav-pill{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  box-shadow:var(--sh-float);
  border-radius:var(--r-pill);
  padding:8px 10px 8px 18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:17px;font-weight:700;
  display:grid;place-items:center;
  box-shadow:0 6px 14px rgba(33,89,201,.28);
}
.brand-text{font-size:16px;font-weight:700;color:var(--brand-deep);letter-spacing:.2px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--muted);
  white-space:nowrap;transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-light);color:var(--brand);text-decoration:none;}
.nav-link.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:500;font-size:15px;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn-main:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 28px rgba(33,89,201,.28);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 14px rgba(33,89,201,.22);}
.nav-cta{padding:11px 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  font-weight:500;font-size:15px;line-height:1.2;cursor:pointer;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:var(--sh);}
.btn-ghost:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--brand-deep);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}

/* ---------- 首屏 ---------- */
.hero{padding:44px 0 0;}
.hero .row{--bs-gutter-x:1.5rem;}
.hero-left{display:flex;flex-direction:column;gap:20px;}
.hero-cover{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  box-shadow:var(--sh);aspect-ratio:16/9;background:var(--brand-light);
}
.hero-cover img{width:100%;height:100%;object-fit:cover;}
.cover-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,22,45,.28),rgba(9,22,45,.05) 45%,rgba(9,22,45,.32));}
.cover-badge{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--coral);color:#fff;font-size:13px;font-weight:600;letter-spacing:.4px;
}
.cover-badge .dot{width:7px;height:7px;border-radius:50%;background:#fff;animation:breath 1.6s ease-in-out infinite;}
@keyframes breath{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.7);}}
.cover-play{
  position:absolute;right:16px;bottom:16px;
  width:56px;height:56px;border-radius:50%;
  background:#fff;color:var(--brand);display:grid;place-items:center;font-size:17px;
  box-shadow:0 12px 26px rgba(9,22,45,.30);transition:transform var(--ease);
}
.cover-play:hover{transform:scale(1.06);color:var(--brand-deep);}
.countdown{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 24px;box-shadow:var(--sh);}
.cd-caption{font-size:14px;color:var(--muted);margin-bottom:12px;}
.cd-blocks{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.cd-block{background:var(--brand-light);border-radius:12px;padding:12px 6px;text-align:center;}
.cd-num{display:block;font-size:clamp(32px,4vw,48px);font-weight:700;color:var(--brand-deep);line-height:1.1;font-variant-numeric:tabular-nums;}
.cd-num.tick{animation:fadeTick 200ms ease;}
@keyframes fadeTick{from{opacity:.35;}to{opacity:1;}}
.cd-unit{display:block;font-size:12px;color:var(--muted);margin-top:4px;}
.subscribe{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 24px;box-shadow:var(--sh);}
.sub-title{font-size:15px;font-weight:600;margin-bottom:12px;}
.sub-row{display:flex;gap:10px;}
.form-input{
  flex:1 1 auto;height:48px;border-radius:var(--r-btn);
  border:1px solid #D8E1F0;padding:0 16px;font-size:15px;color:var(--text);
  background:#fff;transition:border-color var(--ease),box-shadow var(--ease);width:100%;
}
.form-input::placeholder{color:var(--faint);}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(33,89,201,.14);}
.sub-note{font-size:13px;color:var(--faint);margin-top:10px;}
.sub-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.sub-ok{
  display:flex;align-items:center;gap:10px;
  background:#E6F7F3;border:1px solid rgba(18,179,160,.35);
  color:#0B6B5F;border-radius:var(--r-btn);padding:13px 16px;font-size:14px;
}
.sub-err{font-size:13px;color:var(--coral);margin-top:6px;display:none;}
.replay-wrap{margin-top:2px;}
.replay-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:12px;}
.replay-head h3{font-size:16px;font-weight:600;}
.replay-head a{font-size:13px;}
.replay-scroll{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin;}
.replay-card{flex:0 0 168px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease);}
.replay-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);text-decoration:none;}
.replay-thumb{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:16/9;background:var(--brand-light);margin-bottom:8px;}
.replay-thumb img{width:100%;height:100%;object-fit:cover;}
.replay-time{
  position:absolute;right:6px;bottom:6px;background:rgba(9,22,45,.68);color:#fff;
  font-size:11px;padding:2px 6px;border-radius:6px;font-variant-numeric:tabular-nums;
}
.replay-card h4{font-size:13px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:39px;}
.replay-card time{display:block;font-size:12px;color:var(--faint);margin-top:6px;font-variant-numeric:tabular-nums;}

.hero-right{display:flex;flex-direction:column;gap:20px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:600;
}
.hero-title{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;color:var(--brand-deep);letter-spacing:-.2px;}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.7;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;}
.point-list{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.point{display:flex;gap:14px;padding:15px 2px;border-bottom:1px solid var(--line);}
.point-idx{
  flex:0 0 26px;height:26px;border-radius:8px;background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:4px;font-variant-numeric:tabular-nums;
}
.point h3{font-size:17px;font-weight:600;line-height:1.5;}
.point p{font-size:14px;color:var(--muted);line-height:1.65;}
.hero-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:var(--muted);}
.hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-meta i{color:var(--teal);font-size:12px;}
.hero-meta .sep{color:var(--line);}

/* ---------- 信息条 ---------- */
.stat-strip{padding:56px 0 0;}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:28px 0;
}
.stat-item{display:flex;flex-direction:column;gap:4px;}
.stat-num{font-size:clamp(24px,2.4vw,32px);font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{font-size:14px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--teal);letter-spacing:.6px;margin-bottom:8px;}
.sec-title{font-size:clamp(24px,2.8vw,32px);font-weight:700;color:var(--brand-deep);line-height:1.35;}
.sec-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:720px;}
.link-arrow{position:relative;display:inline-flex;align-items:center;font-size:15px;font-weight:500;white-space:nowrap;}
.link-arrow::after{content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;margin-left:6px;transition:transform var(--ease);}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover::after{transform:translateX(3px);}

/* 能力区：左右交错 */
.cap-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.cap-row + .cap-row{margin-top:80px;}
.cap-media{border-radius:var(--r-hero);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--sh);background:var(--brand-light);}
.cap-media img{width:100%;height:100%;object-fit:cover;}
.cap-row.reverse .cap-media{order:2;}
.cap-body h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--brand-deep);line-height:1.4;margin-bottom:14px;}
.cap-body p{font-size:16px;color:var(--muted);line-height:1.85;}
.cap-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.cap-list li{display:flex;gap:12px;font-size:15px;color:var(--text);}
.cap-list i{color:var(--teal);margin-top:6px;font-size:13px;}
.cap-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:500;
}
.tag-teal{background:#E6F7F3;color:#0B6B5F;}

/* 场景流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:22px;height:2px;
  background:linear-gradient(90deg,rgba(33,89,201,.28),rgba(18,179,160,.28));
}
.flow-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease);}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.flow-idx{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-step h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.7;}
.cloud{margin-top:32px;display:flex;flex-wrap:wrap;gap:10px;}
.cloud .tag{padding:8px 16px;font-size:14px;}

/* 最新信息 */
.post-feature{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);margin-bottom:24px;
  transition:transform var(--ease),box-shadow var(--ease);
}
.post-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);text-decoration:none;}
.post-feature .pf-media{aspect-ratio:16/10;background:var(--brand-light);}
.post-feature .pf-media img{width:100%;height:100%;object-fit:cover;}
.post-feature .pf-body{padding:32px;display:flex;flex-direction:column;gap:12px;justify-content:center;}
.post-feature h3{font-size:22px;font-weight:700;color:var(--text);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-feature:hover h3{color:var(--brand);}
.post-feature p{font-size:15px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-card{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh);height:100%;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);text-decoration:none;border-color:rgba(33,89,201,.22);}
.post-thumb{flex:0 0 132px;border-radius:12px;overflow:hidden;background:var(--brand-light);aspect-ratio:4/3;align-self:flex-start;}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-body{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1 1 auto;}
.badge-cat{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;
}
.badge-teal{background:var(--teal);color:#fff;}
.post-card h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--brand);}
.post-card p{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--faint);margin-top:auto;font-variant-numeric:tabular-nums;}
.post-meta .more{margin-left:auto;color:var(--brand);font-weight:500;}
.empty-state{
  background:#fff;border:1px dashed #D8E1F0;border-radius:var(--r-card);
  padding:64px 24px;text-align:center;box-shadow:var(--sh);
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 16px;border-radius:20px;
  background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:24px;
}
.empty-state .t{font-size:16px;font-weight:600;margin-bottom:6px;}
.empty-state .d{font-size:14px;color:var(--faint);margin-bottom:18px;}

/* FAQ */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);padding:8px 24px;height:100%;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{
  padding:20px 0;font-size:17px;font-weight:600;color:var(--text);
  background:transparent;box-shadow:none;border-radius:0;
  display:flex;align-items:center;gap:12px;
}
.accordion-button::after{
  margin-left:auto;flex:0 0 auto;
  background-image:none;content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  color:var(--faint);width:auto;height:auto;
  transition:transform var(--ease),color var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand);}
.accordion-button:hover{color:var(--brand);}
.accordion-button:focus{box-shadow:none;}
.accordion-body{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;}
.accordion-item.open-bar{border-left:3px solid var(--brand);padding-left:16px;}
.accordion-item:not(.open-bar){padding-left:0;}

/* CTA 条 */
.cta-band{
  margin-top:88px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-radius:var(--r-hero);
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 20px 44px rgba(18,58,130,.22);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:#fff;line-height:1.4;margin-bottom:8px;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--r-btn);background:#fff;color:var(--brand-deep);
  font-weight:600;font-size:15px;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease);
}
.btn-white:hover{color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 30px rgba(6,18,40,.28);}

/* 页脚 */
.site-footer{background:#0C1B33;color:#fff;margin-top:88px;padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:16px;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;max-width:320px;}
.footer-contact{margin-top:18px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.9;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color var(--ease),transform var(--ease);}
.footer-col a:hover{color:#8FB6FF;text-decoration:none;transform:translateX(-2px);}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.28);
  display:grid;place-items:center;color:rgba(255,255,255,.8);font-size:14px;
  transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.socials a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:none;}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-link{padding:8px 10px;font-size:14px;}
  .brand-text{font-size:15px;}
}
@media (max-width:991.98px){
  .section{padding-top:64px;}
  .cta-band{margin-top:64px;}
  .site-footer{margin-top:64px;}
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-radius:20px;padding:12px;box-shadow:var(--sh-hover);
    border:1px solid var(--line);margin-left:0;
  }
  .nav-pill.is-open .nav-menu{display:flex;}
  .nav-menu .nav-link{height:48px;padding:0 16px;font-size:15px;border-radius:12px;}
  .nav-toggle{display:inline-flex;}
  .hero{padding-top:32px;}
  .hero-left{gap:18px;}
  .cap-row{grid-template-columns:1fr;gap:28px;}
  .cap-row.reverse .cap-media{order:0;}
  .cap-row + .cap-row{margin-top:56px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .post-feature{grid-template-columns:1fr;}
  .post-feature .pf-body{padding:24px;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding-top:48px;}
  .nav-cta{padding:10px 14px;font-size:13px;}
  .brand-text{font-size:14px;}
  .btn-main,.btn-ghost{width:100%;}
  .hero-cta{flex-direction:column;}
  .sub-row{flex-direction:column;}
  .cd-num{font-size:44px;}
  .stat-row{grid-template-columns:1fr;gap:16px;}
  .flow{grid-template-columns:1fr;}
  .post-card{flex-direction:column;}
  .post-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;}
  .post-feature .pf-body{padding:20px;}
  .cta-band{padding:28px 20px;margin-top:48px;}
  .site-footer{margin-top:48px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bs-primary:#2159C9;
  --bs-body-bg:#F6F8FC;
  --bs-body-color:#1B2436;
  --bs-border-color:#E6EBF4;
  --bs-link-color:#2159C9;
  --bs-link-hover-color:#123A82;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --c-primary:#2159C9;
  --c-deep:#123A82;
  --c-soft:#E8EFFE;
  --c-teal:#12B3A0;
  --c-coral:#FF5A3C;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E6EBF4;
  --c-text:#1B2436;
  --c-sub:#5A6B85;
  --c-mute:#93A1B8;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,45,90,.08);
  --sh-2:0 16px 36px rgba(20,45,90,.14);
  --sh-nav:0 6px 20px rgba(20,45,90,.08);
  --tr:180ms ease;
  --foot:#0C1B33;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--c-deep)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--c-text)}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.25em}
:focus-visible{outline:3px solid rgba(33,89,201,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1180px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:sticky;top:0;z-index:1030;padding-top:16px}
.nav-pill{
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-nav);
  padding:10px 12px 10px 16px;
  position:relative;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.nav-link{
  font-size:15px;font-weight:500;color:var(--c-sub);
  padding:8px 14px;border-radius:var(--r-pill);white-space:nowrap;
  transition:background var(--tr),color var(--tr);
}
.nav-link:hover{background:var(--c-soft);color:var(--c-primary)}
.nav-link.is-active{background:var(--c-soft);color:var(--c-primary);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-size:15px;font-weight:500;
  padding:12px 26px;border-radius:var(--r-btn);border:0;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr);
  box-shadow:0 6px 16px rgba(33,89,201,.22);
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(33,89,201,.30)}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 16px rgba(33,89,201,.22)}
.nav-cta{padding:10px 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--c-primary);
  border:1px solid var(--c-primary);
  font-size:15px;font-weight:500;
  padding:11px 24px;border-radius:var(--r-btn);
  transition:background var(--tr),color var(--tr),transform var(--tr);
}
.btn-ghost:hover{background:var(--c-soft);color:var(--c-deep);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);font-size:16px;
  align-items:center;justify-content:center;
}
@media (max-width:991.98px){
  .nav-pill{flex-wrap:wrap;border-radius:22px;padding:10px 12px}
  .nav-menu{
    order:3;display:none;width:100%;flex-direction:column;align-items:stretch;
    gap:4px;margin:8px 0 4px;background:#fff;border-radius:20px;padding:8px;
    box-shadow:var(--sh-1);
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:0 16px;height:48px;display:flex;align-items:center;border-radius:14px}
  .nav-actions{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{margin-top:24px}
.breadcrumb-cms{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-mute);margin:0;padding:0;list-style:none}
.breadcrumb-cms a{color:var(--c-mute)}
.breadcrumb-cms a:hover{color:var(--c-primary)}
.breadcrumb-cms li+li::before{content:"/";margin-right:8px;color:#C4CFE1}
.breadcrumb-cms .current{color:var(--c-mute);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{
  background:#fff;border-radius:var(--r-hero);box-shadow:var(--sh-1);
  padding:40px 40px 32px;margin-top:20px;
  border:1px solid var(--c-line);
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-soft);color:var(--c-primary);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.badge-soft:hover{background:#DCE8FF;color:var(--c-deep)}
.badge-live{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-coral);color:#fff;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:var(--r-pill);
}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:breath 1.6s ease-in-out infinite}
@keyframes breath{0%,100%{opacity:1}50%{opacity:.35}}
.badge-data{background:var(--c-teal);color:#fff;font-size:12px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill)}
.article-title{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;
  margin:18px 0 0;word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:20px;font-size:13px;color:var(--c-mute);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.article-meta i{color:var(--c-primary);font-size:12px}
.share-row{display:flex;gap:10px;margin-left:auto}
.share-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-sub);display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--tr);cursor:pointer;
}
.share-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-soft);transform:translateY(-2px)}
.share-tip{font-size:13px;color:var(--c-teal);margin-top:10px;display:none}
.share-tip.show{display:block}

/* ---------- 正文区 ---------- */
.layout-gap{margin-top:32px}
.article-body-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px;
}
.article-body{max-width:780px;font-size:17px;line-height:1.9;color:var(--c-text)}
.article-body p{margin:0 0 1.2em;text-align:left}
.article-body h2{
  font-size:28px;font-weight:700;margin:2em 0 .8em;padding-left:14px;
  border-left:4px solid var(--c-primary);line-height:1.35;
}
.article-body h3{font-size:20px;font-weight:600;margin:1.6em 0 .7em;color:var(--c-deep)}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .6em}
.article-body img{border-radius:12px;margin:1.4em auto;box-shadow:var(--sh-1)}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--c-mute);text-align:center;margin-top:10px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-deep)}
.article-body blockquote{
  margin:1.4em 0;padding:18px 22px;background:var(--c-soft);
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-deep);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body ul{list-style:none;padding-left:1.2em}
.article-body ul>li{position:relative;padding-left:6px;margin-bottom:.5em}
.article-body ul>li::before{
  content:"";position:absolute;left:-14px;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--c-primary);
}
.article-body ol>li{margin-bottom:.5em}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;display:block;overflow-x:auto}
.article-body table th{background:var(--c-soft);color:var(--c-deep);font-weight:600;text-align:left}
.article-body table th,.article-body table td{border:1px solid var(--c-line);padding:10px 14px;white-space:nowrap}
.article-body code{background:#F1F5FD;color:var(--c-deep);padding:2px 6px;border-radius:6px;font-size:15px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-primary);font-size:14px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px solid var(--c-line);font-size:14px;line-height:1.6}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{color:var(--c-sub);font-weight:500}
.side-list a:hover{color:var(--c-primary);text-decoration:underline}
.side-list .idx{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--c-soft);
  color:var(--c-primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.info-line{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--c-line)}
.info-line:last-child{border-bottom:0}
.info-line .k{color:var(--c-mute)}
.info-line .v{color:var(--c-text);font-weight:500;text-align:right;word-break:break-all}
@media (max-width:991.98px){
  .side-sticky{position:static;margin-top:28px}
  .article-head{padding:28px 22px 24px}
  .article-body-wrap{padding:24px 20px}
  .article-body{font-size:16px}
}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 20px;
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  background:var(--c-soft);color:var(--c-primary);font-size:26px;
  display:flex;align-items:center;justify-content:center;
}
.empty-state h3{font-size:19px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--c-sub);margin-bottom:22px}

/* ---------- 文末操作 ---------- */
.post-actions{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:32px;
}
.link-arrow{
  color:var(--c-primary);font-weight:500;font-size:15px;position:relative;padding-right:16px;
  transition:transform var(--tr),color var(--tr);display:inline-block;
}
.link-arrow::after{content:"›";position:absolute;right:0;top:-1px;transition:transform var(--tr)}
.link-arrow:hover{color:var(--c-deep);text-decoration:underline;transform:translateX(2px)}
.link-arrow:hover::after{transform:translateX(2px)}

/* ---------- 相关推荐 ---------- */
.section{margin-top:88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:700}
.section-head h2 em{font-style:normal;color:var(--c-primary)}
.section-head p{font-size:14px;color:var(--c-sub);margin:8px 0 0}
.card-news{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card-news:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5E1FB}
.card-news:hover .card-title{color:var(--c-primary)}
.card-thumb{
  aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--c-soft);
  margin-bottom:16px;position:relative;
}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease}
.card-news:hover .card-thumb img{transform:scale(1.03)}
.card-title{font-size:20px;font-weight:600;line-height:1.45;margin:12px 0 8px;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;color:var(--c-sub);line-height:1.75;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-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-mute);padding-top:14px;border-top:1px solid var(--c-line)}
.card-foot .num{font-variant-numeric:tabular-nums}

/* ---------- CTA / 订阅 ---------- */
.cta-band{
  margin-top:88px;background:linear-gradient(135deg,#2159C9,#123A82);
  border-radius:var(--r-hero);padding:48px;color:#fff;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.form-control-cms{
  flex:1 1 220px;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.14);color:#fff;padding:0 16px;font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.form-control-cms::placeholder{color:rgba(255,255,255,.62)}
.form-control-cms:focus{
  outline:none;background:#fff;color:var(--c-text);
  border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.24);
}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:12px;border:0;
  background:#fff;color:var(--c-primary);font-weight:600;font-size:15px;
  transition:transform var(--tr),box-shadow var(--tr);
}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22)}
.form-msg{font-size:13px;margin-top:10px;width:100%}
.form-msg.ok{color:#9BE7D8}
.form-msg.err{color:#FFC2B4}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:32px 24px;gap:24px}
  .section{margin-top:64px}
  .section-head h2{font-size:24px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .cta-band{margin-top:48px}
  .sub-form .btn-white{width:100%}
  .article-title{font-size:26px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--foot);color:#fff;margin-top:96px;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2159C9,#12B3A0)}
.footer-brand .brand-text{color:#fff;font-size:16px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:16px}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin:0 0 18px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:6px 0;transition:color var(--tr),transform var(--tr);
}
.footer-col a:hover{color:#8FB6FF;transform:translateX(2px)}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.24);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.78);font-size:14px;transition:all var(--tr);
}
.socials a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .card-news:hover,.btn-main:hover,.btn-ghost:hover,.btn-white:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#2159C9;
  --brand-deep:#123A82;
  --brand-light:#E8EFFE;
  --accent:#12B3A0;
  --hot:#FF5A3C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6EBF4;
  --text:#1B2436;
  --muted:#5A6B85;
  --faint:#93A1B8;
  --footer-bg:#0C1B33;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:12px;
  --shadow:0 8px 24px rgba(20,45,90,.08);
  --shadow-hover:0 16px 36px rgba(20,45,90,.14);
  --shadow-float:0 6px 20px rgba(20,45,90,.08);
  --ease:200ms ease;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --bs-primary:#2159C9;
  --bs-primary-rgb:33,89,201;
  --bs-body-color:#1B2436;
  --bs-body-bg:#F6F8FC;
  --bs-border-color:#E6EBF4;
  --bs-link-color:#2159C9;
  --bs-link-hover-color:#123A82;
  --bs-body-font-family:var(--font-cn);
  --bs-font-sans-serif:var(--font-cn);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline}
button,input{font-family:inherit}
:focus-visible{outline:3px solid rgba(33,89,201,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.nav-wrap{position:sticky;top:16px;z-index:1040;padding-top:16px}
.nav-pill{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  border-radius:999px;
  padding:8px 10px 8px 18px;
  box-shadow:var(--shadow-float);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:15px;font-weight:700;color:var(--brand-deep);white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;font-size:15px;font-weight:500;color:var(--muted);
  border-radius:999px;white-space:nowrap;transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}
.nav-link.is-active{background:var(--brand-light);color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:16px;
  align-items:center;justify-content:center;
}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:500;line-height:1.2;
  color:#fff;background:linear-gradient(135deg,#2159C9,#123A82);
  border:1px solid transparent;border-radius:var(--radius-btn);
  box-shadow:0 6px 16px rgba(33,89,201,.22);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  cursor:pointer;
}
.btn-main:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(33,89,201,.30)}
.btn-main:active{transform:translateY(0);box-shadow:0 4px 12px rgba(33,89,201,.22)}
.nav-cta{padding:10px 20px;font-size:14px;box-shadow:none}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(33,89,201,.24)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:500;line-height:1.2;
  color:var(--brand);background:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);transition:background var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);text-decoration:none;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:600;line-height:1.2;
  color:var(--brand-deep);background:#fff;border:1px solid #fff;
  border-radius:var(--radius-btn);transition:transform var(--ease),box-shadow var(--ease);
}
.btn-light:hover{color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--brand);
}
.link-arrow::after{content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;transition:transform var(--ease)}
.link-arrow:hover{text-decoration:underline}
.link-arrow:hover::after{transform:translateX(3px)}

/* ============ 徽章 ============ */
.pill-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.data-badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:600;
}
.live-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--hot);color:#fff;font-size:12px;font-weight:600;
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin:24px 0 20px;font-size:13px;color:var(--faint);
}
.crumb a{color:var(--faint)}
.crumb a:hover{color:var(--brand);text-decoration:none}
.crumb .sep{color:#C6D1E4}
.crumb .current{color:var(--faint)}

/* ============ 分类 Hero ============ */
.cat-hero{
  background:var(--brand-light);
  border-radius:var(--radius-hero);
  padding:40px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cat-hero::after{
  content:"";position:absolute;right:-80px;bottom:-120px;
  width:320px;height:320px;border-radius:50%;
  background:linear-gradient(160deg,rgba(33,89,201,.14),rgba(255,255,255,0));
  pointer-events:none;
}
.cat-hero-inner{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  position:relative;z-index:1;
}
.cat-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;font-weight:700;color:var(--brand-deep);
  margin:16px 0 12px;letter-spacing:-.01em;
}
.cat-hero-sub{font-size:14px;color:var(--muted);margin:0 0 24px}
.cat-hero-media{
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);background:#fff;
}
.cat-hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin:0 0 40px}
.section-head h2{
  font-size:clamp(24px,3vw,31px);line-height:1.3;font-weight:700;
  color:var(--text);margin:12px 0 14px;
}
.section-head p{font-size:16px;color:var(--muted);margin:0;max-width:42em}
.text-accent{color:var(--brand-deep);font-weight:700}

/* ============ 交错图文 ============ */
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split-row + .split-row{margin-top:72px}
.split-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-row.reverse .split-media{order:2}
.split-row.reverse .split-body{order:1}
.split-body h3{font-size:22px;font-weight:600;margin:0 0 16px;color:var(--text);line-height:1.4}
.split-body p{font-size:16px;color:var(--muted);margin:0 0 16px}
.split-body p:last-child{margin-bottom:0}
.dot-list{list-style:none;margin:20px 0 0;padding:0}
.dot-list li{
  position:relative;padding-left:22px;margin-bottom:12px;
  font-size:15px;color:var(--muted);line-height:1.8;
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;background:var(--brand);
}
.dot-list li strong{color:var(--text);font-weight:600}
.step-inline{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:22px;
}
.step-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;color:var(--muted);
}
.step-chip b{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;font-weight:700;
}

/* ============ 要点卡片 ============ */
.point-card{
  height:100%;background:var(--card);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);border:1px solid rgba(230,235,244,.9);
  transition:transform var(--ease),box-shadow var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.point-icon{
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:18px;margin-bottom:16px;
}
.point-card h3{font-size:19px;font-weight:600;margin:0 0 10px;color:var(--text)}
.point-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}

/* ============ FAQ ============ */
.faq-acc{max-width:860px;margin:0 auto}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);
}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--text);
  background:#fff;padding:20px 24px;box-shadow:none;border-radius:0;
  transition:color var(--ease),background var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-deep);background:#fff}
.faq-acc .accordion-button::after{
  background-image:none;content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:15px;color:var(--brand);
  transition:transform var(--ease);margin-left:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:3px solid rgba(33,89,201,.28);outline-offset:-3px}
.faq-acc .accordion-body{
  font-size:15px;line-height:1.85;color:var(--muted);
  padding:0 24px 22px;border-top:1px solid transparent;
}
.faq-acc .accordion-collapse.show .accordion-body{position:relative}
.faq-acc .accordion-collapse.show .accordion-body::before{
  content:"";position:absolute;left:0;top:2px;bottom:22px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.faq-acc .accordion-collapse.show .accordion-body{padding-left:28px}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,#2159C9,#123A82);
  border-radius:var(--radius-hero);
  padding:48px;
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 18px 40px rgba(18,58,130,.24);
}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;margin:0 0 10px;color:#fff;line-height:1.35}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.82)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;background:var(--footer-bg);color:#fff;
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px}
.footer-brand .brand-text{color:#fff;font-size:15px;font-weight:700}
.footer-desc{font-size:14px;color:rgba(255,255,255,.68);margin:0 0 18px;line-height:1.85;max-width:34em}
.footer-contact{font-size:14px;color:rgba(255,255,255,.68);line-height:1.9;margin-bottom:20px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin:0 0 18px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  margin-bottom:12px;transition:color var(--ease),transform var(--ease);
}
.footer-col a:hover{color:#8FB6FF;text-decoration:none;transform:translateX(-2px)}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.24);
  color:rgba(255,255,255,.8);font-size:14px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.socials a:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{max-width:1180px}
}
@media (max-width:1199px){
  .section{padding:72px 0}
  .cat-hero{padding:32px}
}
@media (max-width:991px){
  .nav-pill{position:relative;justify-content:space-between;padding:8px 10px 8px 14px}
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
    background:#fff;border-radius:20px;padding:12px;
    box-shadow:var(--shadow-hover);border:1px solid var(--line);
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-link{height:48px;font-size:16px;padding:0 16px;border-radius:14px}
  .nav-cta{display:none}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px}
  .cat-hero-media img{aspect-ratio:16/9}
  .split-row{grid-template-columns:1fr;gap:28px}
  .split-row.reverse .split-media{order:0}
  .split-row.reverse .split-body{order:0}
  .split-row + .split-row{margin-top:56px}
  .section{padding:64px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .nav-wrap{top:10px;padding-top:10px}
  .brand-text{font-size:14px}
  .section{padding:48px 0}
  .cat-hero{padding:24px;border-radius:16px}
  .section-head{margin-bottom:28px}
  .btn-main,.btn-ghost,.btn-light{width:100%}
  .cta-band{padding:28px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .step-chip{width:100%;justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --brand:#2159C9;
  --brand-deep:#123A82;
  --brand-soft:#E8EFFE;
  --accent:#12B3A0;
  --alert:#FF5A3C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6EBF4;
  --text:#1B2436;
  --text-2:#5A6B85;
  --text-3:#93A1B8;
  --ink:#0C1B33;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --shadow:0 8px 24px rgba(20,45,90,.08);
  --shadow-hover:0 16px 36px rgba(20,45,90,.14);
  --shadow-float:0 6px 20px rgba(20,45,90,.08);
  --ease:180ms ease;
  --bs-primary:#2159C9;
  --bs-primary-rgb:33,89,201;
  --bs-body-color:#1B2436;
  --bs-body-bg:#F6F8FC;
  --bs-border-color:#E6EBF4;
  --bs-link-color:#2159C9;
  --bs-link-hover-color:#123A82;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(33,89,201,.45);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1180px}}
@media(max-width:575.98px){.container{padding:0 16px}}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{position:sticky;top:0;z-index:1030;padding-top:16px}
.nav-pill{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  padding:8px 10px 8px 16px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  border-radius:999px;
  box-shadow:var(--shadow-float);
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-weight:700;font-size:16px;
  flex:0 0 auto;
}
.brand-text{font-size:15.5px;font-weight:700;color:var(--brand-deep);white-space:nowrap;letter-spacing:.2px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.nav-pill .nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--text-2);
  white-space:nowrap;line-height:1.2;
  transition:background var(--ease),color var(--ease);
}
.nav-pill .nav-link:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.nav-pill .nav-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}
.nav-menu + .nav-actions{margin-left:0}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:var(--r-btn);border:0;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;text-decoration:none;
  box-shadow:0 6px 16px rgba(33,89,201,.22);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn-main:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(33,89,201,.30)}
.btn-main:active{transform:translateY(0)}
.nav-cta{padding:10px 20px;font-size:14.5px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;text-decoration:none;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  border:1px solid rgba(33,89,201,.16);background:#fff;color:var(--brand);
  font-size:17px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft)}

/* ---------- 面包屑 ---------- */
.crumb{padding:24px 0 0}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb-list li{display:inline-flex;align-items:center;gap:8px}
.crumb-list li+li::before{content:"/";color:var(--text-3)}
.crumb-list a{color:var(--text-2)}
.crumb-list a:hover{color:var(--brand)}
.crumb-list .current{color:var(--text-3);cursor:default}

/* ---------- 分类 Hero ---------- */
.cat-hero{padding:32px 0 0}
.cat-hero-inner{
  background:var(--brand-soft);
  border-radius:var(--r-hero);
  padding:40px;
  position:relative;
  overflow:hidden;
}
.cat-hero-inner::after{
  content:"";
  position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,89,201,.14),rgba(33,89,201,0) 70%);
  pointer-events:none;
}
.cat-hero h1{font-size:clamp(26px,3.2vw,38px);line-height:1.3;margin:14px 0 12px;color:var(--brand-deep)}
.cat-sub{font-size:14.5px;color:var(--text-2);max-width:520px;margin-bottom:22px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;
  background:#fff;color:var(--brand);font-size:12.5px;font-weight:600;
  border:1px solid rgba(33,89,201,.16);
}
.badge-soft i{font-size:11px;color:var(--accent)}
.cat-cover{
  margin:0;border-radius:var(--r-hero);overflow:hidden;
  box-shadow:var(--shadow);aspect-ratio:16/9;background:#DCE7FB;
}
.cat-cover img{width:100%;height:100%;object-fit:cover}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;
  font-size:13.5px;color:var(--text-2);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--brand)}
.hero-meta b{font-variant-numeric:tabular-nums;color:var(--brand-deep);font-weight:700}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.6vw,31px);color:var(--brand-deep)}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:1px;margin-bottom:10px;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15.5px}
.lead-block{max-width:800px;font-size:16px;color:var(--text-2)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:21px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,#2159C9,#BBD0F7 70%,rgba(232,239,254,0));
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 30px 68px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  box-shadow:0 4px 12px rgba(33,89,201,.14);
}
.tl-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFDDF7}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--text-2)}
.tl-tag{
  display:inline-block;margin-top:12px;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;
}

/* ---------- 要点卡片 ---------- */
.tip-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.tip-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:19px;margin-bottom:16px;
}
.tip-card h3{font-size:19px;margin-bottom:8px}
.tip-card p{font-size:14.6px;color:var(--text-2)}
.tip-card ul{margin-top:12px;display:flex;flex-direction:column;gap:7px}
.tip-card li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);
}
.tip-card li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);opacity:.6;
}

/* ---------- 表格 ---------- */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:680px}
thead th{
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:14px;font-weight:600;text-align:left;
  padding:15px 20px;white-space:nowrap;
}
tbody td{
  padding:16px 20px;font-size:14.6px;color:var(--text-2);
  border-top:1px solid var(--line);vertical-align:top;
}
tbody tr{transition:background var(--ease)}
tbody tr:hover{background:#F2F7FF}
tbody td:first-child{color:var(--text);font-weight:600}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-cell .num{
  font-size:30px;font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-cell .num small{font-size:15px;font-weight:600;margin-left:2px}
.stat-cell .lbl{margin-top:8px;font-size:13.5px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--card);border:1px solid var(--line)!important;
  border-radius:var(--r-card)!important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--shadow);
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--text);background:#fff;
  padding:20px 24px;border-radius:0!important;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--brand-deep);background:#F5F9FF}
.accordion-button::after{
  width:14px;height:14px;background-size:14px;
  filter:invert(28%) sepia(78%) saturate(2200%) hue-rotate(210deg) brightness(88%) contrast(92%);
  transition:transform var(--ease);
}
.accordion-body{padding:6px 24px 22px;font-size:15px;color:var(--text-2);line-height:1.85}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand)!important}

/* ---------- 底部 CTA ---------- */
.cta-band{margin-top:88px}
.cta-inner{
  background:linear-gradient(135deg,#2159C9,#123A82);
  border-radius:var(--r-hero);
  padding:52px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 18px 40px rgba(18,58,130,.24);
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,28px)}
.cta-inner p{color:rgba(255,255,255,.78);font-size:14.8px;margin-top:10px;max-width:560px}
.cta-inner .btn-light-main{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 32px;border-radius:var(--r-btn);background:#fff;color:var(--brand-deep);
  font-weight:700;font-size:15.5px;text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease);
  box-shadow:0 8px 22px rgba(0,0,0,.16);
}
.cta-inner .btn-light-main:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.24);text-decoration:none;color:var(--brand-deep)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--ink);color:#fff;
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2159C9,#12B3A0)}
.footer-brand .brand-text{color:#fff;font-size:15.5px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px}
.footer-contact{margin-top:18px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6)}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.82);font-size:14px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.socials a:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:5px 0;transition:color var(--ease),transform var(--ease);
}
.footer-col a:hover{color:#8FB6FF;transform:translateX(2px);text-decoration:none}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media(max-width:1199.98px){
  .cat-hero-inner{padding:34px}
}
@media(max-width:991.98px){
  .nav-pill{padding:8px 10px 8px 14px}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-radius:20px;padding:12px;
    box-shadow:var(--shadow-hover);border:1px solid var(--line);
  }
  .nav-pill.is-open .nav-menu{display:flex}
  .nav-pill .nav-link{height:48px;padding:0 16px;font-size:15.5px}
  .nav-toggle{display:inline-flex}
  .section{padding-top:64px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell:nth-child(1),
  .stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-band{margin-top:64px}
  .cta-inner{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:64px;padding-top:48px}
}
@media(max-width:767.98px){
  body{font-size:15.5px}
  .cat-hero-inner{padding:26px 20px;border-radius:16px}
  .cat-cover{margin-top:20px}
  .btn-main,.btn-ghost{width:100%}
  .nav-cta{width:auto;padding:10px 16px;font-size:14px}
  .cta-inner .btn-light-main{width:100%}
  .timeline::before{left:15px}
  .tl-item{padding-left:56px}
  .tl-num{width:34px;height:34px;font-size:14px}
  .tl-body{padding:18px 20px}
}
@media(max-width:575.98px){
  .section{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .stat-bar{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
  .stat-cell:last-child{border-bottom:0}
  .cta-inner{padding:32px 22px}
  .nav-pill .nav-link{height:48px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --brand:#2159C9;
  --brand-deep:#123A82;
  --brand-soft:#E8EFFE;
  --teal:#12B3A0;
  --coral:#FF5A3C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6EBF4;
  --text:#1B2436;
  --muted:#5A6B85;
  --faint:#93A1B8;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:12px;
  --shadow:0 8px 24px rgba(20,45,90,.08);
  --shadow-hover:0 16px 36px rgba(20,45,90,.14);
  --shadow-nav:0 6px 20px rgba(20,45,90,.08);
  --gutter:24px;
  --bs-primary:#2159C9;
  --bs-primary-rgb:33,89,201;
  --bs-body-color:#1B2436;
  --bs-body-bg:#F6F8FC;
  --bs-border-color:#E6EBF4;
  --bs-link-color:#2159C9;
  --bs-link-hover-color:#123A82;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);text-decoration:underline;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;font-weight:600;line-height:1.4;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(33,89,201,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
@media (min-width:1400px){.container{max-width:1180px;}}
@media (max-width:575.98px){.container{padding:0 16px;}}

/* ---------- 导航 ---------- */
.nav-wrap{
  position:sticky;
  top:0;
  z-index:1030;
  padding:16px 0 0;
  background:linear-gradient(180deg,rgba(246,248,252,.96) 55%,rgba(246,248,252,0));
}
.nav-pill{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  border-radius:999px;
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,#2159C9,#123A82);
  color:#fff;font-size:17px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(33,89,201,.28);
}
.brand-text{font-size:16px;font-weight:700;color:var(--brand-deep);white-space:nowrap;letter-spacing:.2px;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:6px;flex-wrap:nowrap;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;font-size:15px;font-weight:500;color:var(--muted);
  border-radius:999px;white-space:nowrap;text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none;}
.nav-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:500;
  color:#fff;background:linear-gradient(135deg,#2159C9,#123A82);
  border:1px solid transparent;border-radius:var(--radius-btn);
  box-shadow:0 6px 16px rgba(33,89,201,.22);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  cursor:pointer;
}
.btn-main:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(33,89,201,.3);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 16px rgba(33,89,201,.22);}
.nav-cta{padding:10px 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:500;
  color:var(--brand);background:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost:active{transform:translateY(0);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;
  background:var(--brand-soft);border:1px solid rgba(33,89,201,.14);
  color:var(--brand);font-size:17px;cursor:pointer;
}

/* ---------- 面包屑 ---------- */
.crumb{padding:24px 0 0;font-size:13px;color:var(--faint);}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:0;margin:0;list-style:none;}
.crumb li{display:flex;align-items:center;gap:6px;}
.crumb a{color:var(--faint);}
.crumb a:hover{color:var(--brand);text-decoration:none;}
.crumb .sep{color:#C6D0E2;}
.crumb .current{color:var(--muted);}

/* ---------- 分类 Hero ---------- */
.cat-hero{padding:24px 0 0;}
.cat-hero-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;
  background:linear-gradient(135deg,#E8EFFE 0%,#F4F8FF 62%,#FFFFFF 100%);
  border:1px solid rgba(33,89,201,.10);
  border-radius:var(--radius-hero);
  padding:36px 36px;
  min-height:240px;
  box-shadow:var(--shadow);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:16px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:#fff;border:1px solid rgba(33,89,201,.16);border-radius:999px;
}
.cat-hero h1{max-width:640px;margin-bottom:14px;}
.cat-hero .lead{font-size:15px;color:var(--muted);max-width:520px;margin-bottom:24px;}
.cat-hero-media{
  border-radius:var(--radius-hero);overflow:hidden;background:var(--brand-soft);
  aspect-ratio:16/10;box-shadow:var(--shadow);
}
.cat-hero-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 板块通用 ---------- */
main{padding-bottom:8px;}
.section{padding:88px 0 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head .kicker{
  display:inline-block;margin-bottom:10px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:var(--teal);
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 版本对照表 ---------- */
.table-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:8px;overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.ver-table{width:100%;min-width:640px;border-collapse:separate;border-spacing:0;font-size:15px;}
table.ver-table th{
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:14px;font-weight:600;text-align:left;white-space:nowrap;
  padding:14px 16px;
}
table.ver-table th:first-child{border-radius:12px 0 0 12px;}
table.ver-table th:last-child{border-radius:0 12px 12px 0;}
table.ver-table td{
  padding:16px;border-bottom:1px solid var(--line);color:var(--muted);
  font-variant-numeric:tabular-nums;
}
table.ver-table tbody tr{transition:background .18s ease;}
table.ver-table tbody tr:hover{background:#F2F6FF;}
table.ver-table tbody tr:last-child td{border-bottom:none;}
table.ver-table td:first-child{color:var(--text);font-weight:600;}
.tag{
  display:inline-block;padding:3px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.7;white-space:nowrap;
}
.tag-new{background:rgba(18,179,160,.14);color:#0B8C7D;}
.tag-safe{background:var(--brand-soft);color:var(--brand);}
.tag-opt{background:#F1F3F8;color:var(--muted);}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:24px;height:100%;
}
.side-card h3{margin-bottom:14px;font-size:19px;}
.side-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--muted);line-height:1.7;
}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list i{color:var(--teal);margin-top:5px;font-size:13px;}
.side-list strong{display:block;color:var(--text);font-size:15px;font-weight:600;margin-bottom:2px;}

/* ---------- 更新内容卡片 ---------- */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start;}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:24px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(33,89,201,.22);}
.info-card .icon-chip{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;margin-bottom:16px;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.info-card h3{margin-bottom:10px;font-size:19px;}
.info-card p{font-size:15px;color:var(--muted);}
.info-card .meta{margin-top:14px;font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;}

/* ---------- 自检数据条 ---------- */
.check-band{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:28px 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
}
.check-item{padding:0 18px;border-right:1px solid var(--line);}
.check-item:last-child{border-right:none;}
.check-item .num{
  font-size:26px;font-weight:700;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.check-item .label{font-size:14px;font-weight:600;color:var(--text);margin-top:4px;}
.check-item .hint{font-size:13px;color:var(--faint);margin-top:2px;}

/* ---------- 说明段落 ---------- */
.notes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.note{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);
}
.note h3{font-size:18px;margin-bottom:10px;}
.note p{font-size:15px;color:var(--muted);}
.note .bar{width:36px;height:4px;border-radius:999px;background:var(--teal);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden;
  transition:box-shadow .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-hover);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:none;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);cursor:pointer;
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .2s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
  padding:0 24px;border-left:3px solid transparent;
}
.faq-item.is-open .faq-a{max-height:320px;padding-bottom:22px;border-left:3px solid var(--brand);}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- 底部 CTA ---------- */
.cta-section{padding:88px 0 0;}
.cta-band{
  background:linear-gradient(135deg,#2159C9 0%,#123A82 100%);
  border-radius:var(--radius-hero);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(18,58,130,.24);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;font-size:15px;font-weight:600;white-space:nowrap;
  color:var(--brand-deep);background:#fff;border:1px solid #fff;border-radius:var(--radius-btn);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-light:hover{color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18);}
.btn-light:active{transform:translateY(0);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:#0C1B33;color:#fff;
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.7);line-height:1.85;max-width:320px;}
.footer-contact{margin-top:16px;font-size:14px;color:rgba(255,255,255,.6);line-height:1.9;}
.socials{display:flex;gap:12px;margin-top:20px;}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.8);font-size:14px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.socials a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);text-decoration:none;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.72);
  padding:5px 0;transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:#8FB6FF;transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  margin-top:40px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .split{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:991.98px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--shadow-hover);padding:12px;
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{height:48px;padding:0 16px;border-radius:12px;font-size:15px;}
  .nav-toggle{display:inline-flex;}
  .cat-hero-inner{grid-template-columns:1fr;padding:28px;}
  .cat-hero-media{order:-1;aspect-ratio:16/9;}
  .check-band{grid-template-columns:repeat(2,1fr);gap:20px 0;}
  .check-item:nth-child(2){border-right:none;}
  .check-item{padding:0 16px;}
  .notes{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0 0;}
  .cta-section{padding:64px 0 0;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767.98px){
  .card-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:575.98px){
  .nav-cta{display:none;}
  .cat-hero-inner{padding:22px;}
  .brand-text{font-size:15px;}
  .btn-main,.btn-ghost{width:100%;}
  .check-band{grid-template-columns:1fr;}
  .check-item{border-right:none;padding:10px 0;border-bottom:1px dashed var(--line);}
  .check-item:last-child{border-bottom:none;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:48px 0 0;}
  .cta-section{padding:48px 0 0;}
  .faq-q{padding:18px;font-size:16px;}
  .faq-a{padding:0 18px;}
  .site-footer{padding-top:48px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category4 */
:root{
  --brand:#2159C9;
  --brand-deep:#123A82;
  --brand-light:#E8EFFE;
  --accent:#12B3A0;
  --alert:#FF5A3C;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E6EBF4;
  --text:#1B2436;
  --text-2:#5A6B85;
  --text-3:#93A1B8;
  --footer-bg:#0C1B33;
  --r-card:16px;
  --r-hero:20px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-1:0 8px 24px rgba(20,45,90,.08);
  --shadow-2:0 16px 36px rgba(20,45,90,.14);
  --shadow-nav:0 6px 20px rgba(20,45,90,.08);
  --t:180ms ease;
  --bs-primary:#2159C9;
  --bs-primary-rgb:33,89,201;
  --bs-body-color:#1B2436;
  --bs-body-bg:#F6F8FC;
  --bs-border-color:#E6EBF4;
  --bs-link-color:#2159C9;
  --bs-link-hover-color:#123A82;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-size:16px;
  --bs-border-radius:.75rem;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background-color var(--t),transform var(--t),box-shadow var(--t);}
a:hover{color:var(--brand-deep);text-decoration:underline;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;}
input{font:inherit;}
:focus-visible{outline:3px solid rgba(33,89,201,.35);outline-offset:2px;border-radius:8px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container{max-width:1180px;}}

/* ============ 导航 ============ */
.nav-wrap{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:0;
  margin-bottom:8px;
}
.nav-pill{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  width:fit-content;
  max-width:100%;
  margin:0 auto;
  padding:8px 10px 8px 14px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(33,89,201,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-nav);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:700;font-size:17px;
  flex:0 0 auto;
}
.brand-text{font-size:16px;font-weight:700;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;
  font-size:15px;font-weight:500;
  color:var(--text-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  text-decoration:none;
}
.nav-link:hover{background:var(--brand-light);color:var(--brand);text-decoration:none;}
.nav-link.is-active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;font-weight:500;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-radius:var(--r-btn);
  box-shadow:0 6px 16px rgba(33,89,201,.22);
  text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
}
.btn-main:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(33,89,201,.30);}
.btn-main:active{transform:translateY(0);box-shadow:0 6px 16px rgba(33,89,201,.22);}
.nav-cta{padding:10px 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;font-weight:500;
  color:var(--brand);
  background:#fff;
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  text-decoration:none;
  transition:background-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);text-decoration:none;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  color:var(--brand);
  background:var(--brand-light);
  border-radius:var(--r-pill);
  font-size:16px;
}
.nav-toggle:hover{background:#D9E6FE;}

/* ============ 面包屑 ============ */
.crumb{
  font-size:13px;
  color:var(--text-3);
  padding-top:28px;
  margin-bottom:18px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);text-decoration:none;}
.crumb .cur{color:var(--text-2);}

/* ============ 分类 Hero ============ */
.page-hero{
  background:linear-gradient(180deg,var(--brand-light) 0%,#F2F6FE 70%,var(--bg) 100%);
  padding-bottom:40px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .95fr;
  gap:40px;
  align-items:center;
  min-height:250px;
}
.hero-copy .pill{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  font-size:13px;font-weight:500;
  color:var(--brand);
  background:#fff;
  border:1px solid rgba(33,89,201,.16);
  border-radius:var(--r-pill);
  margin-bottom:16px;
}
.hero-copy h1{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.28;
  letter-spacing:.2px;
  margin-bottom:14px;
}
.hero-sub{
  font-size:14px;
  color:var(--text-2);
  margin-bottom:22px;
  max-width:560px;
}
.hero-media{
  border-radius:var(--r-hero);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  background:var(--brand-light);
  aspect-ratio:16/9;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}

/* ============ 数据条 ============ */
.stat-strip{padding:0 0 8px;}
.stat-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0 34px;
  padding:22px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat{display:flex;align-items:baseline;gap:10px;}
.stat-num{
  font-size:26px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-label{font-size:14px;color:var(--text-2);}
.stat + .stat{border-left:1px solid var(--line);padding-left:34px;}
@media (max-width:575.98px){
  .stat + .stat{border-left:0;padding-left:0;}
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--accent);
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(22px,2.5vw,30px);
  margin-bottom:12px;
}
.section-head p{font-size:15px;color:var(--text-2);margin:0;}

/* ============ 2×2 图文卡片网格 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.feature-card{
  background:var(--card);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.feature-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;}
.feature-card .body{padding:24px;}
.feature-card h3{
  font-size:20px;font-weight:600;
  margin-bottom:10px;
}
.feature-card:hover h3{color:var(--brand);}
.feature-card p{font-size:15px;color:var(--text-2);margin:0 0 14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  font-size:12px;font-weight:500;
  color:var(--brand);
  background:var(--brand-light);
  border-radius:var(--r-pill);
}
.tag.tag-accent{background:rgba(18,179,160,.12);color:#0E8C7E;}

/* ============ 排查清单 ============ */
.checklist-block{background:#fff;}
.checklist-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:48px;
  align-items:start;
}
.checklist-aside{
  position:sticky;
  top:104px;
  background:var(--brand-light);
  border-radius:var(--r-hero);
  padding:32px;
}
.checklist-aside h2{font-size:24px;margin-bottom:14px;}
.checklist-aside p{font-size:15px;color:var(--text-2);margin-bottom:20px;}
.checklist{margin:0;}
.checklist li{
  display:flex;gap:18px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.checklist li:first-child{padding-top:4px;}
.checklist li:last-child{border-bottom:0;padding-bottom:0;}
.checklist .idx{
  flex:0 0 auto;
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand-light);
  color:var(--brand);
  font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;
}
.checklist h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.checklist p{font-size:14px;color:var(--text-2);margin:0;}

/* ============ 图文段落节点 ============ */
.node{padding:88px 0;}
.node:nth-of-type(even){background:#fff;}
.node-media{
  border-radius:var(--r-hero);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:16/9;
  background:var(--brand-light);
  margin-bottom:32px;
}
.node-media img{width:100%;height:100%;object-fit:cover;}
.node-cols{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:40px;
}
.node-cols h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.node-cols p{font-size:16px;color:var(--text-2);}
.node-cols .mini-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
  margin-bottom:8px;
}
.node-cols .mini-list li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
}
.quote{
  margin-top:20px;
  padding:18px 22px;
  background:var(--brand-light);
  border-left:4px solid var(--brand);
  border-radius:10px;
  font-size:15px;
  color:var(--brand-deep);
}

/* ============ FAQ ============ */
.faq-block{background:#fff;}
.faq-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item.is-open{border-color:rgba(33,89,201,.28);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:17px;font-weight:600;
  color:var(--text);
  text-align:left;
  position:relative;
}
.faq-q:hover{color:var(--brand);}
.faq-item.is-open .faq-q{color:var(--brand-deep);}
.faq-q .chev{
  flex:0 0 auto;
  color:var(--brand);
  font-size:14px;
  transition:transform var(--t);
}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);}
.faq-a{
  display:none;
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  border-left:3px solid var(--brand);
  margin-left:24px;
  padding-left:19px;
}
.faq-item.is-open .faq-a{display:block;}

/* ============ 底部 CTA ============ */
.cta-band{padding:0 0 88px;}
.cta-inner{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-radius:var(--r-hero);
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;margin:0;}
.cta-inner .btn-light-solid{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;
  background:#fff;
  color:var(--brand-deep);
  font-weight:600;font-size:15px;
  border-radius:var(--r-btn);
  box-shadow:0 10px 24px rgba(9,24,56,.22);
  text-decoration:none;
  transition:transform var(--t),box-shadow var(--t);
}
.cta-inner .btn-light-solid:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(9,24,56,.30);color:var(--brand-deep);text-decoration:none;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--footer-bg);
  color:#fff;
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#3E7BEA,#2159C9);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;}
.footer-brand .brand-text{color:#fff;font-size:16px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0 0 16px;max-width:340px;}
.footer-contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.56);margin-bottom:20px;}
.socials{display:flex;gap:10px;}
.socials a{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.24);
  border-radius:50%;
  color:rgba(255,255,255,.78);
  font-size:14px;
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.socials a:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none;}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:12px;
  text-decoration:none;
  transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:#8FB6FF;transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.56);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section,.node{padding:64px 0;}
  .checklist-grid{gap:32px;}
}
@media (max-width:991.98px){
  .nav-pill{padding:8px 10px;width:100%;justify-content:space-between;}
  .nav-menu{
    display:none;
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-left:0;
    padding:10px;
    background:#fff;
    border-radius:20px;
    box-shadow:var(--shadow-2);
    border:1px solid var(--line);
  }
  .nav-pill.is-open .nav-menu{display:flex;}
  .nav-menu .nav-link{
    height:48px;
    padding:0 16px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-media{order:-1;}
  .feature-grid{grid-template-columns:1fr;}
  .checklist-grid{grid-template-columns:1fr;}
  .checklist-aside{position:static;}
  .node-cols{grid-template-columns:1fr;gap:28px;}
  .faq-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:40px 28px;}
}
@media (max-width:767.98px){
  .section,.node{padding:48px 0;}
  .container{padding-left:16px;padding-right:16px;}
  .footer-grid{grid-template-columns:1fr;}
  .stat-row{gap:14px 24px;padding:18px 0;}
  .stat + .stat{padding-left:0;border-left:0;}
  .feature-card .body,.checklist-aside{padding:20px;}
  .cta-band{padding:0 0 64px;}
  .cta-inner{padding:32px 20px;}
  .cta-inner .btn-light-solid{width:100%;justify-content:center;}
}
@media (max-width:575.98px){
  .hero-copy h1{font-size:26px;}
  .btn-main,.btn-ghost{width:100%;}
  .hero-copy .btn-main{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}