/* roulang page: index */
:root{
  --bs-primary:#00C2A8;
  --bs-body-bg:#070E1A;
  --bs-body-color:#E8F0F8;
  --bs-border-color:rgba(255,255,255,0.10);
  --bs-link-color:#4BE3CE;
  --bs-link-hover-color:#00C2A8;
  --bs-border-radius:16px;

  --ink:#070E1A;
  --ink-2:#0C1526;
  --brand:#00C2A8;
  --brand-deep:#069B87;
  --brand-soft:#4BE3CE;
  --pulse:#FF3D71;
  --txt:#E8F0F8;
  --txt-2:#93A6BC;
  --txt-3:#63748A;
  --line:rgba(255,255,255,0.08);
  --card-line:rgba(255,255,255,0.10);
  --glass:rgba(255,255,255,0.045);
  --glass-strong:rgba(255,255,255,0.07);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-hero:20px;
  --sh-card:0 8px 24px rgba(0,0,0,0.35);
  --sh-card-hover:0 16px 40px rgba(0,0,0,0.45);
  --sec-pad:96px;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.1px;
  overflow-x:hidden;
  padding-bottom:72px;
}
img{max-width:100%;display:block}
a{color:var(--brand-soft);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;color:#fff}
h1{font-size:44px;line-height:1.2;letter-spacing:-.5px}
h2{font-size:32px;line-height:1.3}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-soft);outline-offset:2px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.sec{padding:var(--sec-pad) 0;position:relative}
.sec-alt{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:block;border-radius:2px}
.sec-sub{color:var(--txt-2);font-size:15px;margin:12px 0 0;max-width:640px}
.num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}

/* ------- 顶部导航 ------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,14,26,0.72);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.10),0 1px 0 var(--line);
  transition:background .25s ease;
}
.site-header.is-solid{background:rgba(7,14,26,0.94)}
.nav-bar{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;white-space:nowrap}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#00C2A8,#1B9BD8);
  color:#04140F;font-size:15px;font-weight:800;flex:none;
}
.brand-txt small{display:block;font-size:11px;font-weight:400;color:var(--txt-3);letter-spacing:2px;line-height:1.1}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-main a{
  position:relative;display:inline-block;padding:8px 14px;font-size:15px;color:var(--txt-2);border-radius:10px;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:#fff}
.nav-main a.active::after{transform:scaleX(1)}
.nav-cta{margin-left:12px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;margin-left:auto;
  background:var(--glass);border:1px solid var(--card-line);border-radius:10px;color:#fff;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(0,194,168,.45);color:var(--brand-soft)}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:1060;pointer-events:none;
}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(320px,86vw);
  background:#0A1220;border-left:1px solid var(--card-line);
  padding:20px;transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,14,.62);opacity:0;transition:opacity .28s ease}
.drawer.is-open .drawer-mask{opacity:1}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{width:38px;height:38px;border-radius:10px;background:var(--glass);border:1px solid var(--card-line);color:#fff;cursor:pointer}
.drawer a.drawer-link{
  display:flex;align-items:center;gap:12px;height:52px;padding:0 14px;border-radius:12px;
  color:var(--txt-2);font-size:15px;border:1px solid transparent;
}
.drawer a.drawer-link:hover{background:var(--glass);color:#fff;border-color:var(--card-line)}
.drawer a.drawer-link.active{color:var(--brand);background:rgba(0,194,168,.08);border-color:rgba(0,194,168,.28)}
.drawer .btn-main{margin-top:14px;width:100%;justify-content:center}

/* ------- 按钮 ------- */
.btn-main,.btn-ghost,.btn-text{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-btn);font-weight:600;cursor:pointer;border:0;transition:all .22s ease}
.btn-main{
  padding:13px 26px;font-size:15px;color:#04140F;
  background:linear-gradient(135deg,#00C2A8,#1B9BD8);
}
.btn-main:hover{color:#04140F;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 10px 28px rgba(0,194,168,0.28)}
.btn-ghost{
  padding:13px 24px;font-size:15px;color:var(--txt);
  background:transparent;border:1px solid rgba(255,255,255,0.14);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-text{background:none;padding:0;color:var(--brand);font-size:14px;font-weight:600}
.btn-text i{transition:transform .22s ease}
.btn-text:hover i{transform:translateX(6px)}
.btn-text.back i{transition:transform .22s ease}
.btn-text.back:hover i{transform:translateX(-6px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ------- Hero ------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 80px;
  background:
    radial-gradient(720px 420px at 86% 12%,rgba(0,194,168,.08),transparent 70%),
    var(--ink);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.055;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(0,194,168,.10);border:1px solid rgba(0,194,168,.26);color:var(--brand);
  font-size:12px;margin-bottom:20px;
}
.hero h1{max-width:620px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--txt-2);font-size:17px;margin:18px 0 30px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-stats{display:flex;margin-top:44px;border-top:1px solid var(--line);padding-top:26px}
.hero-stats .hs{padding-right:28px;margin-right:28px;border-right:1px solid var(--line)}
.hero-stats .hs:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stats b{display:block;font-family:ui-monospace,monospace;font-variant-numeric:tabular-nums;font-size:26px;color:var(--brand);line-height:1.2}
.hero-stats span{font-size:13px;color:var(--txt-3)}
.hero-visual{position:relative;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--card-line);box-shadow:var(--sh-card);aspect-ratio:16/9}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,14,26,0.65),rgba(7,14,26,0) 72%);
}

/* ------- 服务 2+1 ------- */
.svc-grid{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px}
.card{
  position:relative;background:var(--glass);border:1px solid var(--card-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:24px;transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.10),var(--sh-card);
}
.card:hover{border-color:rgba(0,194,168,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,0.10),var(--sh-card-hover);transform:translateY(-2px)}
.card-media{border-radius:var(--r-img);overflow:hidden;margin:-24px -24px 20px;aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card p{color:var(--txt-2);font-size:14.5px;margin:10px 0 16px}
.svc-big{grid-row:span 2;display:flex;flex-direction:column}
.svc-big .card-media{aspect-ratio:16/10}
.svc-mini{display:flex;gap:18px;align-items:flex-start;padding:22px 24px}
.svc-ico{
  width:46px;height:46px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:rgba(0,194,168,.12);color:var(--brand);font-size:18px;border:1px solid rgba(0,194,168,.22);
}
.svc-mini h3{font-size:18px;margin-bottom:6px}
.svc-mini p{margin:0;font-size:14px}
.svc-list{margin-top:14px;display:grid;gap:10px}
.svc-list li{display:flex;gap:10px;font-size:14px;color:var(--txt-2)}
.svc-list li i{color:var(--brand);margin-top:5px;font-size:12px}

/* ------- 数据 ------- */
.stats-sec{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:8px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:ui-monospace,monospace;font-variant-numeric:tabular-nums;font-size:34px;color:var(--brand);line-height:1.15}
.stat h3{font-size:16px;margin:10px 0 6px;font-weight:600}
.stat p{font-size:13.5px;color:var(--txt-3);margin:0}

/* ------- 案例横滚 ------- */
.rail{display:flex;gap:24px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-item{flex:0 0 clamp(268px,30%,340px);scroll-snap-align:start}
.case-card{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--card-line);box-shadow:var(--sh-card);background:#0A1220}
.case-card .case-img{aspect-ratio:4/3;overflow:hidden}
.case-card .case-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.case-card:hover .case-img img{transform:scale(1.03)}
.case-card:hover{border-color:rgba(0,194,168,.35);box-shadow:var(--sh-card-hover)}
.case-bar{
  position:absolute;left:12px;right:12px;bottom:12px;padding:14px 16px;border-radius:12px;
  background:rgba(7,14,26,0.78);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.10);
}
.case-bar h3{font-size:16px;margin:8px 0 0}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;background:rgba(0,194,168,.12);color:var(--brand);border:1px solid rgba(0,194,168,.24);
}
.badge-mag{background:rgba(255,61,113,.14);color:#FF6E93;border-color:rgba(255,61,113,.3)}

/* ------- CMS 列表 ------- */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.post-card .pc-img{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--card-line)}
.post-card .pc-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .pc-img img{transform:scale(1.03)}
.pc-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.pc-body h3{
  font-size:17px;margin:12px 0 10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-body h3 a{color:#fff}
.pc-body h3 a:hover{color:var(--brand)}
.pc-sum{
  color:var(--txt-2);font-size:13.5px;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--txt-3)}
.empty-state{
  border:1px dashed rgba(255,255,255,0.14);border-radius:var(--r-card);
  min-height:180px;max-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;color:var(--txt-3);font-size:14px;text-align:center;padding:24px;
}
.empty-state i{font-size:26px;color:var(--txt-3)}

/* ------- 流程交替 ------- */
.flow-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.flow-row + .flow-row{margin-top:72px;padding-top:72px;border-top:1px solid var(--line)}
.flow-row.rev .flow-media{order:2}
.flow-media{border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--card-line);box-shadow:var(--sh-card);aspect-ratio:16/10}
.flow-media img{width:100%;height:100%;object-fit:cover}
.flow-copy{max-width:560px}
.flow-copy h3{font-size:24px;margin:14px 0 14px}
.flow-copy p{color:var(--txt-2);font-size:15px}
.flow-steps{margin-top:20px;display:grid;gap:12px}
.flow-steps li{display:flex;gap:12px;font-size:14px;color:var(--txt-2)}
.flow-steps .no{
  flex:none;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;font-size:12px;
  background:rgba(0,194,168,.12);color:var(--brand);border:1px solid rgba(0,194,168,.24);
  font-family:ui-monospace,monospace;
}

/* ------- FAQ ------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border:1px solid var(--card-line);border-left:3px solid var(--brand);border-radius:14px;
  background:var(--glass);margin-bottom:14px;overflow:hidden;transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:rgba(0,194,168,.28);border-left-color:var(--brand)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;color:#fff;font-size:16px;font-weight:600;cursor:pointer;
}
.faq-q i{color:var(--brand);transition:transform .2s ease;flex:none}
.faq-q[aria-expanded="true"]{background:rgba(255,255,255,0.05)}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg)}
.faq-a{padding:0 22px 20px;color:var(--txt-2);font-size:14.5px}

/* ------- 表单 ------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.form-card{padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--txt-2);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.12);
  border-radius:10px;padding:12px 14px;font-size:14.5px;color:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--txt-3)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(0,194,168,.18);
}
.field .hint{font-size:12px;color:var(--txt-3);margin-top:6px}
.form-tip{font-size:12.5px;color:var(--txt-3);margin-top:14px}
.info-card{padding:28px;display:flex;flex-direction:column;gap:18px}
.info-row{display:flex;gap:14px;align-items:flex-start;font-size:14px;color:var(--txt-2)}
.info-row i{color:var(--brand);width:20px;text-align:center;margin-top:4px}
.map-holder{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--card-line);aspect-ratio:16/9;margin-top:6px;
  position:relative;background:#0A1220;
}
.map-holder img{width:100%;height:100%;object-fit:cover;opacity:.72}
.map-holder span{
  position:absolute;left:14px;bottom:14px;font-size:12.5px;color:var(--txt-2);
  background:rgba(7,14,26,.78);padding:6px 12px;border-radius:999px;border:1px solid var(--card-line);
}

/* ------- CTA 带 ------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:var(--glass-strong);border:1px solid var(--card-line);border-radius:var(--r-card);
  padding:30px 32px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.cta-band h3{font-size:22px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--txt-2);font-size:14.5px}

/* ------- 页脚 ------- */
.site-footer{background:var(--ink-2);border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand .brand{margin-bottom:14px}
.foot-brand p{color:var(--txt-3);font-size:13px;max-width:320px}
.foot-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600}
.foot-col a,.foot-col li{display:block;font-size:13px;color:var(--txt-3);margin-bottom:10px}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--txt-3);
}
.foot-bottom a{color:var(--txt-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ------- 移动 Tab ------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(7,14,26,0.92);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(5,1fr);height:60px}
.tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--txt-3);position:relative;
}
.tabbar a i{font-size:17px}
.tabbar a.active{color:var(--brand)}
.tabbar a.active::before{content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--brand);border-radius:2px}

/* ------- 响应式 ------- */
@media (max-width:1199px){
  h1{font-size:38px}
  h2{font-size:28px}
  .hero-grid{gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:991px){
  :root{--sec-pad:72px}
  .nav-main,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero{padding:64px 0 60px}
  .hero-grid{grid-template-columns:1fr}
  .hero h1{max-width:none}
  .hero-visual{order:2;aspect-ratio:16/9;max-height:260px}
  .svc-grid{grid-template-columns:1fr}
  .svc-big{grid-row:auto}
  .list-grid{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:0}
  .stat{padding:22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .stat:nth-child(2n){border-right:0}
  .flow-row{grid-template-columns:1fr;gap:28px}
  .flow-row.rev .flow-media{order:0}
  .contact-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  body{padding-bottom:72px}
  .tabbar{display:block}
  :root{--sec-pad:56px}
  .wrap{padding:0 16px}
  h1{font-size:30px;line-height:1.25}
  h2{font-size:24px}
  h3{font-size:18px}
  body{font-size:15px}
  .hero{padding:52px 0 48px}
  .hero-sub{font-size:15.5px;margin:14px 0 24px}
  .hero-stats{flex-wrap:wrap;gap:14px 0;padding-top:22px;margin-top:32px}
  .hero-stats .hs{width:50%;border-right:0;padding-right:0;margin-right:0}
  .hero-stats .hs b{font-size:22px}
  .hero-visual{max-height:220px;border-radius:14px}
  .list-grid{grid-template-columns:1fr;gap:16px}
  .svc-grid{gap:16px}
  .card{padding:20px}
  .card-media{margin:-20px -20px 18px}
  .stats-row{grid-template-columns:1fr 1fr}
  .case-bar{left:10px;right:10px;bottom:10px;padding:12px 14px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;gap:8px}
  .form-card,.info-card{padding:22px}
  .cta-band{padding:22px}
  .sec-head{margin-bottom:32px}
}
@media (max-width:519px){
  .hero-stats .hs{width:100%}
  .stats-row{grid-template-columns:1fr}
  .stat{border-right:0}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;justify-content:center}
}

/* roulang page: article */
:root{
  --bs-primary:#00C2A8;
  --bs-body-bg:#070E1A;
  --bs-body-color:#E8F0F8;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-link-color:#4BE3CE;
  --bs-link-hover-color:#00C2A8;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;

  --bg:#070E1A;
  --bg-alt:#0C1526;
  --brand:#00C2A8;
  --brand-deep:#069B87;
  --brand-light:#4BE3CE;
  --magenta:#FF3D71;
  --text:#E8F0F8;
  --text-2:#93A6BC;
  --text-weak:#63748A;
  --line:rgba(255,255,255,.08);
  --card-border:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.045);
  --radius-card:16px;
  --radius-media:12px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid #4BE3CE;outline-offset:2px;border-radius:8px}
.num,.tabular{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.4px}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,14,26,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.site-header.is-scrolled{background:rgba(7,14,26,.95)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,#00C2A8,#1F9BD8);color:#04140F;font-weight:700;font-size:17px;
}
.brand-txt{display:flex;flex-direction:column;font-size:18px;font-weight:700;line-height:1.15;letter-spacing:-.3px}
.brand-txt small{font-size:10px;font-weight:500;letter-spacing:1.6px;color:var(--text-weak);margin-top:2px}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-main a{
  position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.nav-main a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);transition:width .2s ease;
}
.nav-main a:hover{color:var(--text)}
.nav-main a:hover::after{width:58%}
.nav-main a.active{color:var(--brand);font-weight:600}
.nav-main a.active::after{width:58%}
.header-cta{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--card-border);
  background:rgba(255,255,255,.04);color:var(--text);font-size:13px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,border-color .22s ease,color .22s ease,background .22s ease;
}
.btn-primary-brand{background:linear-gradient(135deg,#00C2A8,#1F9BD8);color:#04140F}
.btn-primary-brand:hover{color:#04140F;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 10px 28px rgba(0,194,168,.28)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-light)}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(6px)}
.link-back{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-2)}
.link-back span{transition:transform .2s ease}
.link-back:hover{color:var(--brand)}
.link-back:hover span{transform:translateX(-6px)}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;z-index:95;display:none;background:rgba(4,9,17,.72)}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;max-width:520px;margin:0 auto;
  background:#0A1424;border-bottom:1px solid var(--card-border);
  border-radius:0 0 20px 20px;padding:18px 20px 24px;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
.drawer-close{
  height:38px;padding:0 14px;border-radius:10px;border:1px solid var(--card-border);
  background:transparent;color:var(--text-2);font-size:13px;cursor:pointer;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);font-weight:600}
.drawer-cta{width:100%;margin-top:18px}

/* 文章头部 */
.article-hero{position:relative;padding:48px 0 40px;background:linear-gradient(180deg,#070E1A 0%,#0C1526 100%);overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 12% 8%,rgba(0,194,168,.08),transparent 46%),
    radial-gradient(circle at 88% 84%,rgba(31,155,216,.06),transparent 48%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.article-hero .wrap{position:relative;z-index:2}
.breadcrumb-line{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-weak);margin-bottom:24px}
.breadcrumb-line a{color:var(--text-2)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:var(--text-weak);opacity:.7}
.breadcrumb-line .current{
  color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.post-head{max-width:820px}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:rgba(0,194,168,.12);color:var(--brand-light);border:1px solid rgba(0,194,168,.28);
}
.post-head h1{
  margin:16px 0 0;font-size:44px;line-height:1.2;letter-spacing:-.5px;font-weight:700;
  overflow-wrap:anywhere;
}
.post-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-weak);
}
.post-meta .meta-item b{color:var(--text-2);font-weight:600}
.post-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-weak);opacity:.6}

/* 正文 */
.article-body{padding:56px 0 72px;background:var(--bg)}
.reading-col{max-width:760px;margin:0 auto}
.post-content{font-size:16px;line-height:1.85;color:var(--text-2);overflow-wrap:anywhere}
.post-content p{margin:0 0 20px}
.post-content h2{
  font-size:26px;line-height:1.35;color:var(--text);font-weight:700;
  margin:40px 0 16px;letter-spacing:-.3px;
}
.post-content h3{font-size:20px;line-height:1.4;color:var(--text);font-weight:600;margin:32px 0 14px}
.post-content h4{font-size:17px;line-height:1.4;color:var(--text);font-weight:600;margin:24px 0 12px}
.post-content ul,.post-content ol{margin:0 0 20px;padding-left:24px}
.post-content li{margin-bottom:8px}
.post-content li::marker{color:var(--brand)}
.post-content blockquote{
  margin:28px 0;padding:16px 20px;border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  background:rgba(0,194,168,.06);color:var(--text);font-size:15px;
}
.post-content blockquote p:last-child{margin-bottom:0}
.post-content img{border-radius:12px;margin:28px auto}
.post-content a{color:var(--brand-light);border-bottom:1px solid rgba(0,194,168,.45)}
.post-content a:hover{color:var(--brand)}
.post-content strong{color:var(--text);font-weight:600}
.post-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.post-content code{
  font-family:var(--font-mono);font-size:13px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:var(--brand-light);
}
.post-content pre{
  background:#0A1424;border:1px solid var(--card-border);border-radius:12px;padding:16px 18px;
  overflow:auto;margin:0 0 24px;
}
.post-content pre code{background:none;border:0;padding:0;color:var(--text-2)}
.post-content table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:14px}
.post-content th,.post-content td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.post-content th{background:rgba(255,255,255,.04);color:var(--text);font-weight:600}

/* 文末 */
.post-foot{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--text-2);background:rgba(255,255,255,.045);border:1px solid var(--card-border);
}
.tag:hover{color:var(--brand);border-color:rgba(0,194,168,.4)}

/* 空态 */
.empty-state{
  border:1px dashed rgba(255,255,255,.14);border-radius:16px;background:rgba(255,255,255,.02);
  padding:40px 24px;text-align:center;max-width:760px;margin:0 auto;
}
.empty-ico{
  width:44px;height:44px;margin:0 auto 16px;border-radius:999px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);color:var(--text-2);font-weight:700;
}
.empty-title{font-size:20px;font-weight:600;margin-bottom:10px}
.empty-desc{color:var(--text-2);font-size:14px;margin-bottom:20px}

/* CTA 带 */
.cta-band{padding:0 0 72px}
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--glass);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:28px 32px;
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);
}
.cta-panel h3{font-size:20px;font-weight:600;margin-bottom:6px}
.cta-panel p{color:var(--text-2);font-size:14px}

/* 相关推荐 */
.related{padding:72px 0 96px;background:var(--bg-alt);border-top:1px solid var(--line)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-post{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card-post:hover{transform:translateY(-3px);border-color:rgba(0,194,168,.35);box-shadow:var(--shadow-hover)}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:12px 12px 0 0;background:#0A1424}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-post:hover .card-thumb img{transform:scale(1.03)}
.card-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,14,26,0) 40%,rgba(7,14,26,.65) 100%)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45}
.card-body .excerpt{font-size:14px;color:var(--text-2);line-height:1.7}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-weak)}
.card-link{display:block;color:inherit}
.card-link:hover{color:inherit}

/* 页脚 */
.site-footer{background:#050A13;border-top:1px solid var(--line);padding:64px 0 28px;font-size:13px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{color:var(--text-2);line-height:1.8;max-width:360px}
.foot-col h4{font-size:13px;letter-spacing:1px;color:var(--text);margin-bottom:16px;text-transform:uppercase}
.foot-col a,.foot-col li{
  display:block;color:var(--text-2);padding:6px 0;list-style:none;font-size:13px;
}
.foot-col a:hover{color:var(--brand)}
.foot-col ul{margin:0;padding:0}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-weak);
}

/* 移动端底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;
  background:rgba(7,14,26,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;flex:1;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--text-weak);
}
.tab-item svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.active{color:var(--brand)}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--brand);
}
.tab-item:hover{color:var(--brand)}

@media (max-width:1199.98px){
  .nav-main a{padding:8px 9px;font-size:14px}
}
@media (max-width:991.98px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-cta .btn-primary-brand{display:none}
  .section{padding:72px 0}
  .section-head h2{font-size:28px}
  .post-head h1{font-size:36px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  body{padding-bottom:72px}
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:28px}
  .article-hero{padding:36px 0 32px}
  .post-head h1{font-size:30px;letter-spacing:-.2px}
  .post-meta{gap:8px;font-size:12px}
  .breadcrumb-line .current{max-width:180px}
  .article-body{padding:40px 0 56px}
  .post-content{font-size:15px}
  .post-content h2{font-size:22px;margin-top:32px}
  .post-content h3{font-size:18px}
  .cta-band{padding-bottom:56px}
  .cta-panel{padding:22px 20px}
  .related{padding:56px 0 72px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .site-footer{padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .tabbar{display:flex}
}
@media (max-width:575.98px){
  .post-head h1{font-size:28px}
  .btn{height:42px;padding:0 16px;font-size:14px}
  .cta-panel h3{font-size:18px}
}

/* roulang page: category1 */
:root{
  --ink:#070E1A;
  --ink-2:#0C1526;
  --brand:#00C2A8;
  --brand-d:#069B87;
  --brand-l:#4BE3CE;
  --magenta:#FF3D71;
  --text:#E8F0F8;
  --text-2:#93A6BC;
  --text-3:#63748A;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.045);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);

  --bs-primary:#00C2A8;
  --bs-body-bg:#070E1A;
  --bs-body-color:#E8F0F8;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-link-color:#4BE3CE;
  --bs-link-hover-color:#00C2A8;
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-l);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-l);outline-offset:2px;border-radius:6px;
}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.3px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,14,26,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .25s ease;
}
.site-header.is-scrolled{background:rgba(7,14,26,.94);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,#00C2A8,#1F9BD8);
  color:#04140F;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px rgba(0,194,168,.25);
}
.brand-txt{
  display:flex;flex-direction:column;line-height:1.15;
  font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.4px;
  white-space:nowrap;
}
.brand-txt small{
  font-size:10px;font-weight:500;letter-spacing:2px;color:var(--text-3);
  font-family:ui-monospace,monospace;
}
.nav-main{display:flex;align-items:center;gap:6px;margin-inline-start:auto;}
.nav-main a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:2px;background:var(--brand);
  transform:translateX(-50%);
  transition:width .2s ease;
  border-radius:2px;
}
.nav-main a:hover{color:var(--text);}
.nav-main a:hover::after{width:22px;}
.nav-main a.active{color:var(--brand-l);}
.nav-main a.active::after{width:22px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#00C2A8,#1F9BD8);
  color:#04140F;
  box-shadow:0 8px 22px rgba(0,194,168,.22);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 10px 28px rgba(0,194,168,.28);
  color:#04140F;
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.14);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand-l);
  transform:translateY(-1px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.header-cta{flex:none;margin-inline-start:12px;}
.nav-toggle{
  display:none;
  margin-inline-start:auto;
  width:42px;height:42px;
  border-radius:10px;
  background:var(--glass);
  border:1px solid var(--card-line);
  color:var(--text);font-size:18px;
  cursor:pointer;
}

/* 文字按钮 */
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:15px;color:var(--brand-l);
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(6px);}

/* ============ 卡片通用 ============ */
.card-surface{
  background:var(--glass);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow);
  padding:24px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-surface:hover{
  transform:translateY(-3px);
  border-color:rgba(0,194,168,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-hover);
}

.badge-soft{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(0,194,168,.12);
  color:var(--brand-l);
  border:1px solid rgba(0,194,168,.22);
}
.badge-magenta{
  background:rgba(255,61,113,.14);
  color:#FF8FAE;
  border-color:rgba(255,61,113,.28);
}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;
  min-height:260px;
  display:flex;align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero__bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,26,.78),rgba(7,14,26,.86)),
             linear-gradient(90deg,rgba(7,14,26,.9),rgba(7,14,26,.45));
}
.page-hero__dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.05;
  pointer-events:none;
}
.page-hero__glow{
  position:absolute;top:-120px;right:-80px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(0,194,168,.16),transparent 65%);
  pointer-events:none;
}
.page-hero__inner{position:relative;z-index:2;padding:56px 0;width:100%;}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand-l);}
.crumb .sep{color:var(--text-3);}
.crumb .cur{color:var(--brand-l);}
.page-hero h1{
  font-size:44px;line-height:1.2;letter-spacing:-.5px;
  margin-bottom:14px;
}
.page-hero h1 span{color:var(--brand-l);}
.hero-sub{
  font-size:16px;color:var(--text-2);max-width:640px;margin:0;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}

/* ============ 锚点胶囊 ============ */
.anchor-bar{
  position:sticky;top:68px;z-index:1010;
  background:rgba(7,14,26,.92);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;gap:10px;
  padding-top:14px;padding-bottom:14px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:none;
  display:inline-flex;align-items:center;
  padding:8px 18px;
  font-size:14px;font-weight:500;
  color:var(--text-2);
  border:1px solid var(--card-line);
  border-radius:999px;
  background:rgba(255,255,255,.03);
  white-space:nowrap;
}
.pill:hover{color:var(--text);border-color:rgba(255,255,255,.22);}
.pill.is-active{
  color:var(--brand-l);
  border-color:rgba(0,194,168,.55);
  background:rgba(0,194,168,.10);
}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--alt{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:2px;font-weight:600;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{font-size:32px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;margin:0;}

/* 图文左右交错 */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:80px;}
.split__media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--card-line);
  box-shadow:var(--shadow);
  background:var(--ink-2);
}
.split__media img{
  width:100%;height:100%;
  aspect-ratio:4/3;object-fit:cover;
  transition:transform .35s ease;
}
.split__media:hover img{transform:scale(1.03);}
.split__media .tag-float{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(7,14,26,.78);
  color:var(--brand-l);
  border:1px solid rgba(0,194,168,.35);
  backdrop-filter:blur(6px);
}
.split__body h3{font-size:24px;margin-bottom:14px;line-height:1.35;}
.split__body p{color:var(--text-2);font-size:16px;margin-bottom:14px;}
.split__body .mini-list{margin-top:18px;display:grid;gap:12px;}
.mini-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-2);
}
.mini-list li i{
  color:var(--brand);margin-top:4px;font-size:13px;flex:none;
}
.split--reverse .split__media{order:2;}

/* 规格列表 */
.spec-block{
  margin-top:80px;
  background:var(--glass);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow);
  overflow:hidden;
}
.spec-block__head{
  padding:26px 28px 22px;
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.spec-block__head h3{font-size:20px;}
.spec-block__head p{margin:6px 0 0;font-size:14px;color:var(--text-2);}
.spec-row{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:20px;
  padding:20px 28px;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.spec-row:last-child{border-bottom:0;}
.spec-row:hover{background:rgba(255,255,255,.03);}
.spec-key{
  font-size:14px;color:var(--text-2);
  display:flex;align-items:center;gap:8px;
}
.spec-key i{color:var(--brand);font-size:13px;}
.spec-val{font-size:15px;color:var(--text);line-height:1.75;}
.spec-val em{
  font-style:normal;color:var(--brand-l);
  font-family:ui-monospace,monospace;font-variant-numeric:tabular-nums;
}

/* 数据条 */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--glass);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:80px;
}
.metric{
  padding:32px 26px;
  border-right:1px solid var(--line);
}
.metric:last-child{border-right:0;}
.metric b{
  display:block;
  font-family:ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;
  color:var(--brand-l);
  line-height:1.2;margin-bottom:8px;
}
.metric span{font-size:14px;color:var(--text-2);line-height:1.6;display:block;}

/* CTA 条 */
.cta-band{
  margin:96px auto 0;
  background:var(--glass);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow);
  padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h3{font-size:22px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;}
.cta-band .btn{flex:none;}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;}
.acc-item{
  background:var(--glass);
  border:1px solid var(--card-line);
  border-left:3px solid var(--brand);
  border-radius:12px;
  margin-bottom:16px;
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease;
}
.acc-item:hover{border-color:rgba(0,194,168,.35);}
.acc-btn{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:transparent;border:0;
  color:var(--text);
  font-size:16px;font-weight:600;text-align:left;
  cursor:pointer;
  transition:background .2s ease;
}
.acc-btn:hover{background:rgba(255,255,255,.04);}
.acc-btn i{color:var(--brand-l);font-size:14px;transition:transform .2s ease;flex:none;}
.acc-btn:not(.collapsed){background:rgba(255,255,255,.05);}
.acc-btn:not(.collapsed) i{transform:rotate(180deg);}
.acc-body{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.8;}

/* 相关链接块 */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;}
.link-card{
  display:block;
  background:var(--glass);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.link-card:hover{
  transform:translateY(-3px);
  border-color:rgba(0,194,168,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-hover);
}
.link-card h4{font-size:18px;margin:14px 0 10px;color:var(--text);}
.link-card p{font-size:14px;color:var(--text-2);margin:0 0 16px;}
.link-card .go{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-l);
}
.link-card:hover .go i{transform:translateX(6px);}
.link-card .go i{transition:transform .2s ease;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:var(--ink-2);
  padding:64px 0 32px;
  font-size:13px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{color:var(--text-2);font-size:13px;line-height:1.8;margin:0;max-width:320px;}
.foot-col h4{
  font-size:14px;font-weight:700;color:var(--text);
  margin-bottom:16px;letter-spacing:0;
}
.foot-col a{
  display:block;
  color:var(--text-2);
  font-size:13px;
  padding:6px 0;
}
.foot-col a:hover{color:var(--brand-l);}
.foot-col li{
  color:var(--text-2);
  font-size:13px;
  padding:6px 0;
  line-height:1.7;
}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13px;
}

/* ============ 移动端底部 Tab ============ */
.m-tabbar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:rgba(7,14,26,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.m-tabbar a{
  flex:1;
  height:60px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--text-3);
  font-size:10px;
  position:relative;
}
.m-tabbar a svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.m-tabbar a.active{color:var(--brand-l);}
.m-tabbar a.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:28px;height:2px;border-radius:2px;background:var(--brand);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-main{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-main.is-open{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;left:0;right:0;top:100%;
    background:rgba(7,14,26,.98);
    border-bottom:1px solid var(--line);
    padding:12px 24px 20px;
    gap:0;
  }
  .nav-main.is-open a{
    line-height:52px;padding:0 4px;border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .nav-main.is-open a::after{display:none;}
  .header-inner{position:relative;}

  .page-hero{min-height:220px;}
  .page-hero h1{font-size:34px;}
  .section{padding:72px 0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .link-cards{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{padding-bottom:72px;}
  .m-tabbar{display:flex;}
  .anchor-bar{top:0;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split--reverse .split__media{order:0;}
  .split + .split{margin-top:56px;}
  .split__body h3{font-size:20px;}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px 20px;}
  .spec-row .spec-key{font-size:13px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;margin-top:64px;}
  .cta-band .btn{width:100%;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .page-hero{min-height:180px;}
  .page-hero__inner{padding:40px 0;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .card-surface{padding:20px;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .link-cards{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .brand-txt{font-size:16px;}
  .spec-block__head{padding:22px 20px;}
  .acc-btn{padding:18px 18px;font-size:15px;}
  .acc-body{padding:0 18px 20px;}
}

/* roulang page: category2 */
:root{
  --bs-primary:#00C2A8;
  --bs-body-bg:#070E1A;
  --bs-body-color:#E8F0F8;
  --bs-border-color:rgba(255,255,255,.10);
  --bs-link-color:#4BE3CE;
  --bs-link-hover-color:#00C2A8;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;

  --bg:#070E1A;
  --bg-2:#0C1526;
  --brand:#00C2A8;
  --brand-dark:#069B87;
  --brand-light:#4BE3CE;
  --accent:#FF3D71;
  --text:#E8F0F8;
  --text-2:#93A6BC;
  --text-3:#63748A;
  --line:rgba(255,255,255,.08);
  --card-border:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.045);
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45);
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(circle at 85% 0%,rgba(0,194,168,.08),transparent 45%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.3px;}
p{margin:0;}
ul{margin:0;padding:0;}
li{list-style:none;}
:focus-visible{outline:2px solid #4BE3CE;outline-offset:2px;border-radius:6px;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:32px;font-weight:700;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.2px;color:var(--brand);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);display:block;}
.num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,#00C2A8,#1E9BD8);color:#04140F;}
.btn-primary:hover{color:#04140F;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 10px 28px rgba(0,194,168,.28);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.14);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-light);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-light);font-size:15px;font-weight:600;}
.link-arrow span{transition:transform .2s ease;display:inline-block;}
.link-arrow:hover span{transform:translateX(6px);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;font-weight:600;
  background:rgba(0,194,168,.12);color:var(--brand-light);border:1px solid rgba(0,194,168,.28);
}
.badge--warn{background:rgba(255,61,113,.12);color:#FF7A9C;border-color:rgba(255,61,113,.3);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,14,26,.72);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .25s ease;
}
.site-header.is-stuck{background:rgba(7,14,26,.95);}
.site-header .wrap{display:flex;align-items:center;gap:24px;min-height:var(--header-h);position:relative;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,#00C2A8,#1E9BD8);color:#04140F;
  font-size:17px;font-weight:700;display:grid;place-items:center;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;font-size:18px;font-weight:700;letter-spacing:-.3px;}
.brand-txt small{font-size:9px;letter-spacing:1.6px;color:var(--brand);font-weight:600;margin-top:2px;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-main a{
  position:relative;color:var(--text-2);font-size:15px;padding:6px 0;text-decoration:none;
}
.nav-main a::after{
  content:"";position:absolute;left:50%;bottom:-2px;height:2px;width:0;
  background:var(--brand);transform:translateX(-50%);
  transition:width .2s ease;border-radius:2px;
}
.nav-main a:hover{color:var(--text);}
.nav-main a:hover::after{width:100%;}
.nav-main a.active{color:var(--brand-light);}
.nav-main a.active::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.14);background:transparent;color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-light);}

/* ---------- 分类页头图 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:260px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(7,14,26,.75),rgba(7,14,26,.75)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 20% 45%,rgba(0,194,168,.12),transparent 55%),
    radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:auto,24px 24px;
}
.cat-hero .wrap{position:relative;z-index:1;padding-top:56px;padding-bottom:56px;}
.cat-hero h1{font-size:40px;font-weight:700;line-height:1.2;letter-spacing:-.5px;margin:16px 0 14px;max-width:820px;}
.cat-hero p{color:var(--text-2);font-size:17px;max-width:640px;}
.cat-hero .hero-meta{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:26px;font-size:13px;color:var(--text-3);}
.cat-hero .hero-meta b{color:var(--brand-light);font-weight:600;}

/* ---------- 锚点导航 ---------- */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:40;
  background:rgba(12,21,38,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.anchor-bar .wrap{
  display:flex;gap:12px;padding-top:14px;padding-bottom:14px;
  overflow-x:auto;scrollbar-width:none;
}
.anchor-bar .wrap::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);color:var(--text-2);
  font-size:14px;text-decoration:none;transition:.2s ease;
}
.anchor-pill:hover{color:var(--text);border-color:rgba(0,194,168,.5);}
.anchor-pill.active{border-color:var(--brand);color:var(--brand-light);background:rgba(0,194,168,.08);}

/* ---------- 编号步骤卡 ---------- */
.step-list{display:flex;flex-direction:column;gap:20px;}
.step{
  display:grid;grid-template-columns:104px 1fr;gap:28px;align-items:start;
  padding:28px 30px;border-radius:var(--radius-card);
  border:1px solid var(--card-border);background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-2px);border-color:rgba(0,194,168,.35);box-shadow:var(--shadow-hover);}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:52px;font-weight:700;line-height:1;letter-spacing:-2px;
  background:linear-gradient(135deg,#4BE3CE,#069B87);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding-top:4px;
}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.step-body p{color:var(--text-2);font-size:15px;}
.step-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.step-tags span{
  font-size:13px;color:var(--text-2);padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}

/* ---------- 对比信息块 ---------- */
.cmp-wrap{overflow-x:auto;scrollbar-width:thin;}
.cmp-wrap::-webkit-scrollbar{height:6px;}
.cmp-wrap::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px;}
.cmp{
  min-width:760px;border:1px solid var(--card-border);border-radius:var(--radius-card);
  overflow:hidden;background:var(--glass);
}
.cmp-row{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;border-bottom:1px solid var(--line);}
.cmp-row:last-child{border-bottom:0;}
.cmp-cell{padding:16px 18px;font-size:14px;color:var(--text-2);border-right:1px solid var(--line);}
.cmp-cell:last-child{border-right:0;}
.cmp-row .cmp-cell:first-child{color:var(--text);font-weight:600;background:rgba(255,255,255,.025);}
.cmp-head .cmp-cell{
  color:var(--brand-light);font-weight:600;font-size:13px;letter-spacing:.5px;
  background:rgba(0,194,168,.07);
}
.cmp-head .cmp-cell:first-child{color:var(--brand-light);background:rgba(0,194,168,.07);}

/* ---------- CTA 带 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:30px 34px;border-radius:var(--radius-card);
  border:1px solid var(--card-border);background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10);
}
.cta-band h3{font-size:22px;font-weight:700;margin-bottom:8px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:640px;}

/* ---------- 折叠面板 ---------- */
.faq{max-width:860px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--card-border);border-left:3px solid var(--brand);
  border-radius:12px;background:rgba(255,255,255,.02);
  overflow:hidden;transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:rgba(0,194,168,.32);border-left-color:var(--brand);}
.faq-item.open{background:rgba(255,255,255,.05);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:18px 22px;background:none;border:0;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q svg{flex:0 0 auto;color:var(--brand);transition:transform .2s ease;}
.faq-item.open .faq-q svg{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.75;}

/* ---------- 链接卡 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.link-card{
  display:flex;flex-direction:column;gap:12px;
  padding:24px;border-radius:var(--radius-card);
  border:1px solid var(--card-border);background:var(--glass);
  color:var(--text);text-decoration:none;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.link-card:hover{color:var(--text);transform:translateY(-3px);border-color:rgba(0,194,168,.35);box-shadow:var(--shadow-hover);}
.link-card h3{font-size:18px;font-weight:600;}
.link-card p{color:var(--text-2);font-size:14px;line-height:1.7;}
.link-card .link-arrow{margin-top:auto;font-size:14px;}

/* ---------- 联系区 ---------- */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;}
.contact-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.contact-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.025);
}
.contact-list strong{display:block;font-size:15px;color:var(--text);font-weight:600;}
.contact-list span{font-size:13px;color:var(--text-2);}
.contact-dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto;margin-top:9px;
}
.contact-card{
  border-radius:var(--radius-card);border:1px solid var(--card-border);
  overflow:hidden;background:var(--glass);box-shadow:var(--shadow-card);
}
.contact-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.contact-card .contact-card-body{padding:24px;}
.contact-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.contact-card p{color:var(--text-2);font-size:14px;}
.notice{
  margin-top:18px;padding:14px 16px;border-radius:12px;font-size:13px;
  border:1px dashed rgba(255,61,113,.35);background:rgba(255,61,113,.06);color:#FF9AB4;
}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-2);
  padding:64px 0 28px;font-size:13px;color:var(--text-2);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:13px;line-height:1.85;color:var(--text-2);max-width:360px;}
.foot-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;}
.foot-col a{display:block;color:var(--text-2);line-height:2.1;}
.foot-col a:hover{color:var(--brand-light);}
.foot-col li{color:var(--text-2);line-height:2.1;}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-hero h1{font-size:36px;}
}
@media (max-width:991px){
  :root{--header-h:60px;}
  .section{padding:72px 0;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-cta{display:none;}
  .nav-main{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    padding:6px 24px 18px;
    background:rgba(7,14,26,.98);
    border-bottom:1px solid var(--line);
    display:none;
  }
  .nav-main.open{display:flex;}
  .nav-main a{line-height:52px;width:100%;border-bottom:1px solid var(--line);font-size:15px;}
  .nav-main a:last-child{border-bottom:0;}
  .nav-main a::after{display:none;}
  .nav-main a.active{color:var(--brand-light);}
  .cat-hero{min-height:230px;}
  .cat-hero h1{font-size:32px;}
  .step{grid-template-columns:80px 1fr;gap:20px;padding:24px;}
  .step-num{font-size:42px;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .link-cards{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{padding-bottom:72px;}
  .wrap{padding:0 16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .cat-hero{min-height:180px;}
  .cat-hero .wrap{padding-top:40px;padding-bottom:40px;}
  .cat-hero h1{font-size:26px;margin:12px 0 10px;}
  .cat-hero p{font-size:15px;}
  .cat-hero .hero-meta{gap:8px 18px;margin-top:18px;}
  .step{grid-template-columns:1fr;gap:14px;padding:22px 20px;border-radius:16px;}
  .step-num{font-size:38px;}
  .step-body h3{font-size:18px;}
  .link-cards{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px 22px;}
  .cta-band h3{font-size:19px;}
  .btn{width:100%;}
  .cta-band .btn{width:auto;}
  .foot-grid{grid-template-columns:1fr;gap:24px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .mobile-tab{
    display:grid;grid-template-columns:repeat(5,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:60px;padding-bottom:env(safe-area-inset-bottom);
    background:rgba(7,14,26,.92);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-top:1px solid var(--line);
  }
  .mobile-tab a{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10px;color:var(--text-3);text-decoration:none;
  }
  .mobile-tab a svg{width:18px;height:18px;stroke:currentColor;}
  .mobile-tab a.active{color:var(--brand-light);}
  .mobile-tab a.active::before{
    content:"";position:absolute;top:0;width:26px;height:2px;
    background:var(--brand);border-radius:0 0 2px 2px;
  }
}
@media (max-width:520px){
  .brand-txt{font-size:16px;}
  .brand-txt small{font-size:8px;letter-spacing:1.2px;}
  .cat-hero h1{font-size:23px;}
  .section-head h2{font-size:22px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .contact-card .contact-card-body{padding:20px;}
}