/* roulang page: index */
:root{
  --bg-0:#060910;
  --bg-1:#0A111C;
  --bg-2:#101B2A;
  --primary:#12D9A6;
  --primary-deep:#0E9C8A;
  --accent:#FF8A3D;
  --accent-soft:#FFC44D;
  --text-1:#EAF2F7;
  --text-2:#9FB3C4;
  --text-3:#6B7E90;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --glow-primary:0 0 0 1px rgba(18,217,166,.35),0 0 24px -4px rgba(18,217,166,.45);
  --glow-accent:0 0 0 1px rgba(255,138,61,.35),0 0 22px -6px rgba(255,138,61,.5);
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.75),0 1px 0 rgba(255,255,255,.04) inset;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --t:200ms cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text-2);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:'';position:fixed;top:-18%;left:50%;transform:translateX(-50%);
  width:1100px;height:620px;z-index:0;pointer-events:none;
  background:radial-gradient(circle,rgba(18,217,166,.11),transparent 66%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-family:'Barlow','DIN Alternate',ui-monospace,monospace;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section.tight{padding:72px 0;}
.divider{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(18,217,166,.3),transparent);}

/* header */
.site-header{position:sticky;top:0;z-index:60;border-bottom:1px solid transparent;transition:background var(--t),border-color var(--t),backdrop-filter var(--t);}
.site-header.scrolled{background:rgba(6,9,16,.72);backdrop-filter:blur(14px);border-bottom-color:var(--line);}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap;}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{content:'';position:absolute;left:0;bottom:-2px;width:16px;height:2px;border-radius:2px;background:var(--primary);}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-size:20px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.logo span.sub{font-size:12px;font-weight:600;color:var(--primary);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}
.burger{display:none;width:44px;height:44px;border:1px solid var(--glass-border);border-radius:10px;background:rgba(255,255,255,.04);align-items:center;justify-content:center;cursor:pointer;}
.burger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:'';position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* drawer */
.drawer{position:fixed;top:0;right:0;width:min(88vw,340px);height:100%;z-index:90;background:rgba(8,13,22,.98);backdrop-filter:blur(16px);border-left:1px solid var(--line);transform:translateX(102%);transition:transform 220ms cubic-bezier(.22,.61,.36,1);display:flex;flex-direction:column;padding:20px;}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--glass-border);background:transparent;color:var(--text-1);cursor:pointer;font-size:18px;}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{height:52px;display:flex;align-items:center;color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--primary);}
.drawer-foot{margin-top:auto;padding-top:16px;}
.drawer-foot .btn{width:100%;}
.mask{position:fixed;inset:0;background:rgba(3,6,10,.6);z-index:80;opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);}
.mask.open{opacity:1;visibility:visible;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);}
.btn svg{width:16px;height:16px;}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140F;box-shadow:0 0 0 1px rgba(18,217,166,.25),0 0 18px -6px rgba(18,217,166,.6);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--glow-primary);color:#04140F;}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.35);}
.btn-ghost{background:transparent;border-color:var(--glass-border);color:var(--text-1);}
.btn-ghost:hover{border-color:rgba(18,217,166,.6);background:rgba(18,217,166,.08);color:var(--text-1);transform:translateY(-1px);}
.btn-accent{background:linear-gradient(135deg,var(--accent),#E8681F);color:#1A0C02;box-shadow:0 0 0 1px rgba(255,138,61,.3),0 0 20px -6px rgba(255,138,61,.6);}
.btn-accent:hover{transform:translateY(-1px);box-shadow:var(--glow-accent);color:#1A0C02;}
.btn[disabled]{opacity:.55;cursor:not-allowed;box-shadow:none;transform:none;filter:saturate(.6);}
.link{color:var(--primary-deep);font-weight:600;}
.link:hover{color:var(--primary);text-decoration:underline;}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,9,16,.74),rgba(6,9,16,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 320px;align-items:center;gap:48px;padding:88px 0 80px;min-height:580px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);padding:6px 14px;border-radius:999px;background:rgba(18,217,166,.10);border:1px solid rgba(18,217,166,.25);}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;color:var(--text-1);margin:22px 0 0;letter-spacing:.01em;}
.hero p.lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:640px;margin:20px 0 0;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;color:var(--text-2);font-size:14px;}
.trust-row span{display:inline-flex;align-items:center;gap:8px;}
.trust-row svg{width:18px;height:18px;color:var(--primary);}
.anchor-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--r-card);backdrop-filter:blur(14px);box-shadow:var(--shadow-card);padding:22px;}
.anchor-card .ac-head{font-size:13px;color:var(--text-2);display:flex;align-items:center;justify-content:space-between;}
.anchor-card .ac-value{font-size:40px;font-weight:800;color:#fff;line-height:1.1;margin-top:10px;}
.anchor-card .ac-value small{font-size:14px;font-weight:500;color:var(--text-2);margin-left:6px;}
.anchor-card .ac-sub{font-size:13px;color:var(--text-3);margin-top:6px;}
.ac-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:18px;overflow:hidden;}
.ac-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));}
.ac-split{display:flex;justify-content:space-between;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.ac-split b{display:block;color:var(--text-1);font-size:20px;font-weight:700;}

/* section head */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--text-1);margin:12px 0 0;line-height:1.35;}
.section-desc{font-size:15px;color:var(--text-2);margin:10px 0 0;max-width:640px;}

/* cards */
.card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--r-card);backdrop-filter:blur(14px);box-shadow:var(--shadow-card);padding:24px;transition:transform var(--t),border-color var(--t),box-shadow var(--t);}
.card:hover{transform:translateY(-2px);border-color:rgba(18,217,166,.35);box-shadow:var(--shadow-card),0 0 30px -14px rgba(18,217,166,.5);}
.card h3{font-size:19px;font-weight:600;color:var(--text-1);margin:14px 0 8px;line-height:1.45;}
.card p{font-size:15px;color:var(--text-2);margin:0;}
.icon-box{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(18,217,166,.10);border:1px solid rgba(18,217,166,.25);color:var(--primary);}
.icon-box svg{width:22px;height:22px;}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--primary-deep);}
.card-link:hover{color:var(--primary);text-decoration:underline;}

/* metrics */
.metrics-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.metric-main{grid-column:span 6;display:flex;flex-direction:column;justify-content:space-between;}
.metric-small{grid-column:span 2;}
.metric-value{font-size:clamp(36px,5vw,56px);font-weight:800;color:var(--primary);line-height:1.05;margin-top:12px;}
.metric-small .metric-value{font-size:34px;color:var(--text-1);}
.metric-label{font-size:14px;color:var(--text-2);margin-top:8px;}
.metric-note{font-size:13px;color:var(--text-3);margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:16px;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));}
.bar.alt i{background:linear-gradient(90deg,#B4791F,var(--accent-soft));}

/* bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento-main{grid-column:span 7;padding:0;overflow:hidden;display:flex;flex-direction:column;}
.bento-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0;}
.bento-main .bm-body{padding:26px;}
.bento-side{grid-column:span 5;display:grid;gap:24px;}
.bento-row{grid-column:span 12;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px;}
.feature-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);}
.feature-list li::before{content:'';flex:0 0 6px;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--primary);}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.cat-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cat-card .cc-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;color:var(--primary);background:rgba(18,217,166,.12);border:1px solid rgba(18,217,166,.25);}
.badge.neutral{color:var(--text-2);background:rgba(255,255,255,.06);border-color:var(--line);}

/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{padding:26px;}
.compare-col.recommend{border-color:rgba(18,217,166,.35);box-shadow:var(--shadow-card),0 0 34px -18px rgba(18,217,166,.6);}
.compare-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.compare-head h3{margin:0;font-size:19px;color:var(--text-1);font-weight:600;}
.compare-row{padding:14px 0;border-top:1px solid var(--line);}
.compare-row .cr-top{display:flex;justify-content:space-between;font-size:14px;color:var(--text-2);}
.compare-row .cr-top b{color:var(--text-1);font-weight:600;}
.track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:10px;}
.track i{display:block;height:100%;border-radius:999px;background:rgba(159,179,196,.45);}
.track.on i{background:linear-gradient(90deg,var(--primary-deep),var(--primary));}

/* news */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.news-main{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.news-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-main .nm-body{padding:24px;}
.news-main h3{font-size:20px;}
.news-list{display:flex;flex-direction:column;}
.news-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);align-items:center;}
.news-item:first-child{border-top:1px solid var(--line);}
.news-item img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:0 0 96px;}
.news-item h4{margin:0;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .meta{font-size:13px;color:var(--text-3);margin-top:6px;display:flex;gap:10px;align-items:center;}
.news-item:hover h4{color:var(--primary);}
.empty-state{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;border:1px dashed var(--glass-border);border-radius:var(--r-card);background:rgba(255,255,255,.02);text-align:center;padding:32px;}
.empty-state svg{width:48px;height:48px;color:var(--primary);}
.empty-state p{margin:0;color:var(--text-2);font-size:15px;}

/* evidence */
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote{font-size:15px;color:var(--text-2);margin:16px 0 0;}
.quote-author{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.avatar{width:36px;height:36px;border-radius:50%;background:rgba(18,217,166,.14);border:1px solid rgba(18,217,166,.3);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:14px;}
.stars{display:flex;gap:3px;color:var(--accent-soft);}
.stars svg{width:15px;height:15px;}

/* faq */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{border:1px solid var(--glass-border);border-radius:var(--r-card);background:var(--glass-bg);backdrop-filter:blur(14px);overflow:hidden;transition:border-color var(--t),background var(--t);}
.faq-item.open{border-color:rgba(18,217,166,.35);background:rgba(18,217,166,.05);}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;min-height:56px;padding:16px 22px;background:transparent;border:0;cursor:pointer;text-align:left;color:var(--text-1);font-size:16px;font-weight:600;}
.faq-q .idx{font-size:13px;color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums;}
.faq-q .sign{margin-left:auto;color:var(--primary);font-size:20px;line-height:1;transition:transform var(--t);}
.faq-item.open .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.22,.61,.36,1);}
.faq-a p{margin:0;padding:0 22px 20px 60px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* form */
.contact-layout{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start;}
.form-panel{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--r-panel);backdrop-filter:blur(14px);box-shadow:var(--shadow-card);padding:32px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:8px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-2);font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--glass-border);border-radius:10px;
  color:var(--text-1);padding:12px 14px;min-height:48px;transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field select option{background:#0A111C;color:var(--text-1);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(18,217,166,.14);background:rgba(255,255,255,.06);}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);}
.check-row input{width:18px;height:18px;min-height:18px;margin-top:4px;accent-color:var(--primary);}
.form-msg{font-size:13px;color:#FF5C5C;display:none;}
.form-msg.show{display:block;}
.form-success{display:none;flex-direction:column;align-items:flex-start;gap:12px;padding:8px 0;}
.form-success.show{display:flex;}
.form-success svg{width:40px;height:40px;color:var(--primary);}
.form-success h3{margin:0;color:var(--text-1);font-size:20px;}
.form-success p{margin:0;color:var(--text-2);font-size:15px;}
.side-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:16px;}
.side-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
.side-list svg{width:20px;height:20px;color:var(--primary);flex:0 0 20px;margin-top:5px;}
.contact-meta{margin-top:26px;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--text-2);display:grid;gap:10px;}
.contact-meta b{color:var(--text-1);font-weight:600;}

/* footer */
.site-footer{position:relative;z-index:1;border-top:1px solid var(--line);background:var(--bg-0);margin-top:0;}
.site-footer::before{content:'';position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(18,217,166,.35),transparent);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px;}
.footer-grid h4{font-size:14px;color:var(--text-1);margin:0 0 16px;font-weight:600;}
.footer-links{display:grid;gap:10px;font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-brand p{font-size:14px;color:var(--text-2);margin:16px 0 0;max-width:320px;}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--text-3);}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms ease,transform 520ms cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

@media (max-width:1024px){
  .nav-side{display:none;}
  .burger{display:flex;}
  .nav-grid{grid-template-columns:1fr auto 1fr;}
  .nav-grid .nav-cta{display:none;}
  .hero-inner{grid-template-columns:1fr;min-height:0;padding:64px 0 56px;gap:32px;}
  .metric-main{grid-column:span 12;}
  .metric-small{grid-column:span 4;}
  .bento-main{grid-column:span 12;}
  .bento-side{grid-column:span 12;}
  .bento-row{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .contact-layout{grid-template-columns:1fr;}
  .evidence-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section.tight{padding:56px 0;}
  .compare{grid-template-columns:1fr;}
  .metric-small{grid-column:span 6;}
  .bento-row{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .evidence-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:14px;font-size:13px;}
  .section-head{margin-bottom:32px;}
  .faq-a p{padding-left:22px;}
  .form-panel{padding:22px;}
}

/* roulang page: article */
:root{
  --bg-0:#060910;
  --bg-1:#0A111C;
  --bg-2:#101B2A;
  --primary:#12D9A6;
  --primary-deep:#0E9C8A;
  --primary-soft:#5CF0C6;
  --accent:#FF8A3D;
  --accent-soft:#FFC44D;
  --text-1:#EAF2F7;
  --text-2:#9FB3C4;
  --text-3:#6B7E90;
  --text-body:#C9D7E3;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --glow-primary:0 0 0 1px rgba(18,217,166,.35), 0 0 24px -4px rgba(18,217,166,.45);
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.75), 0 1px 0 rgba(255,255,255,.04) inset;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text-2);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-18vh;
  left:50%;
  width:min(1100px,120vw);
  height:60vh;
  transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(18,217,166,.12),rgba(18,217,166,0));
  filter:blur(40px);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-1);letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background 200ms var(--ease),border-color 200ms var(--ease),backdrop-filter 200ms var(--ease);
}
.site-header.scrolled{
  background:rgba(6,9,16,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  position:relative;
}
.nav-side{display:flex;align-items:center;gap:24px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end;gap:20px}
.nav-link{
  position:relative;
  font-size:14.5px;
  color:var(--text-2);
  padding:6px 0;
  transition:color 200ms var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-6px;
  width:16px;
  height:2px;
  transform:translateX(-50%);
  background:var(--primary);
  border-radius:2px;
}
.logo{
  font-size:19px;
  font-weight:800;
  color:var(--text-1);
  white-space:nowrap;
  display:inline-flex;
  align-items:baseline;
  line-height:1.2;
}
.logo .sub{
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  margin-left:6px;
  letter-spacing:.06em;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease),filter 200ms var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(18,217,166,.22),0 0 18px -6px rgba(18,217,166,.6);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(18,217,166,.4),0 0 26px -4px rgba(18,217,166,.7)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.35)}
.btn-ghost{
  border:1px solid var(--glass-border);
  color:var(--text-1);
  background:transparent;
}
.btn-ghost:hover{border-color:rgba(18,217,166,.6);background:rgba(18,217,166,.08)}
.nav-cta{height:40px;padding:0 18px;font-size:14px}
.burger{
  display:none;
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--glass-border);
}
.burger span,
.burger span::before,
.burger span::after{
  content:"";
  display:block;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform 200ms var(--ease),opacity 200ms var(--ease);
  position:relative;
}
.burger span::before{position:absolute;top:-6px}
.burger span::after{position:absolute;top:6px}
.burger.open span{background:transparent}
.burger.open span::before{transform:rotate(45deg);top:0;background:var(--primary)}
.burger.open span::after{transform:rotate(-45deg);top:0;background:var(--primary)}

.mask{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  opacity:0;
  pointer-events:none;
  transition:opacity 220ms var(--ease);
  z-index:50;
}
.mask.show{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;
  top:72px;
  left:0;
  right:0;
  z-index:55;
  background:rgba(6,9,16,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:8px 16px 22px;
  transform:translateY(-12px);
  opacity:0;
  pointer-events:none;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
  max-height:calc(100vh - 72px);
  overflow-y:auto;
}
.mobile-drawer.open{opacity:1;transform:none;pointer-events:auto}
.mobile-drawer a{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 8px;
  border-bottom:1px solid var(--line);
  color:var(--text-1);
  font-size:15px;
}
.mobile-drawer a.active{color:var(--primary)}
.mobile-drawer .drawer-cta{margin-top:18px;width:100%;border-bottom:0}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:18px 0 6px;
  font-size:13.5px;
  color:var(--text-2);
}
.breadcrumb a{transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-1);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头区 ---------- */
.article-head{max-width:880px;margin:0 auto;padding:18px 0 30px}
.badge{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.5;
}
.badge-cat{
  color:var(--primary);
  background:rgba(18,217,166,.12);
  border:1px solid rgba(18,217,166,.25);
}
.badge-time{
  color:var(--text-2);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  font-weight:500;
}
.article-title{
  margin-top:18px;
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;
  line-height:1.28;
  color:var(--text-1);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--text-2);
}
.meta-dot{color:var(--text-3)}
.article-cover{
  max-width:920px;
  margin:6px auto 0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card);
  background:rgba(18,217,166,.08);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 正文布局 ---------- */
.article-shell{padding-top:40px}
.article-main{min-width:0}
.toc-card{
  display:none;
  position:sticky;
  top:96px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:20px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.toc-card h2{
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.toc-card dl{margin:0 0 16px}
.toc-card dt{font-size:12.5px;color:var(--text-3);margin-top:12px}
.toc-card dd{margin:2px 0 0;font-size:14px;color:var(--text-1)}
.toc-links{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:16px}
.toc-links a{font-size:14px;color:var(--text-2);transition:color 200ms var(--ease)}
.toc-links a:hover{color:var(--primary)}

.article-content{
  max-width:780px;
  color:var(--text-body);
  font-size:16.5px;
  line-height:1.85;
  overflow-wrap:break-word;
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:24px;
  font-weight:700;
  line-height:1.4;
  color:var(--text-1);
  margin:40px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--primary);
}
.article-content h3{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-1);
  margin:32px 0 12px;
}
.article-content p{margin:0 0 1.1em}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.1em}
.article-content li{margin-bottom:8px}
.article-content li::marker{color:var(--primary)}
.article-content blockquote{
  margin:26px 0;
  padding:16px 20px;
  border-left:3px solid var(--primary);
  background:rgba(255,255,255,.03);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:12px;margin:26px auto}
.article-content figure{margin:26px 0}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
}
.article-content th{
  background:rgba(255,255,255,.05);
  color:var(--text-1);
  font-weight:600;
  text-align:left;
}
.article-content th,.article-content td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.article-content code{
  background:rgba(18,217,166,.12);
  color:var(--primary);
  padding:2px 6px;
  border-radius:6px;
  font-family:ui-monospace,'DIN Alternate',Menlo,Consolas,monospace;
  font-size:.92em;
}
.article-content pre{
  background:rgba(0,0,0,.35);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  margin:24px 0;
}
.article-content pre code{background:none;color:var(--text-1);padding:0}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary-soft)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* 空态 */
.empty-state{
  max-width:780px;
  min-height:280px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  text-align:center;
  padding:44px 28px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
}
.empty-state svg{stroke:var(--primary)}
.empty-state h3{font-size:19px;font-weight:600}
.empty-state p{font-size:14.5px;color:var(--text-2);max-width:44ch}

/* 标签与返回 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:40px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(255,255,255,.045);
  border:1px solid var(--glass-border);
  transition:color 200ms var(--ease),border-color 200ms var(--ease);
}
.tag:hover{color:var(--primary);border-color:rgba(18,217,166,.4)}
.article-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}

/* ---------- 相关推荐 ---------- */
.related{margin-top:88px}
.section-head{max-width:640px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  letter-spacing:.08em;
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:32px;
}
.card-post{
  display:flex;
  flex-direction:column;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.card-post:hover{transform:translateY(-2px);border-color:rgba(18,217,166,.35)}
.card-post .thumb{overflow:hidden;background:rgba(18,217,166,.08)}
.card-post .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:filter 200ms var(--ease)}
.card-post:hover .thumb img{filter:brightness(1.08)}
.card-post .body{padding:20px 22px 24px}
.card-post h3{font-size:17px;font-weight:600;line-height:1.5;transition:color 200ms var(--ease)}
.card-post:hover h3{color:var(--primary)}
.card-post p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.card-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- CTA 条 ---------- */
.cta-strip{
  margin-top:88px;
  padding:34px 36px;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(18,217,166,.14),rgba(255,138,61,.07));
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.4}
.cta-strip p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  padding:64px 0 28px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,217,166,.3),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand p{
  margin-top:14px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
  max-width:340px;
}
.site-footer h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-links a{transition:color 200ms var(--ease)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 浮动返回顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:45;
  width:46px;
  height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:rgba(10,17,28,.85);
  border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  color:var(--text-1);
  opacity:0;
  pointer-events:none;
  transition:opacity 200ms var(--ease),transform 200ms var(--ease),border-color 200ms var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:rgba(18,217,166,.5);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .article-shell{
    display:grid;
    grid-template-columns:210px minmax(0,1fr) 180px;
    gap:36px;
    align-items:start;
  }
  .toc-card{display:block}
}
@media (max-width:1023px){
  .nav-side{display:none}
  .burger{display:flex}
  .related{margin-top:64px}
  .cta-strip{margin-top:64px}
  .site-footer{margin-top:72px;padding-top:48px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-head{padding-top:12px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .related-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .cta-strip{padding:26px 22px}
  .related{margin-top:56px}
  .cta-strip{margin-top:56px}
  .site-footer{margin-top:64px;padding:40px 0 24px}
  .footer-bottom{margin-top:32px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .btn{width:100%;padding:0 18px}
  .nav-cta{width:auto}
  .article-actions .btn{width:100%}
  .cta-actions{width:100%}
  .to-top{right:16px;bottom:16px}
  .breadcrumb .current{max-width:100%;white-space:normal}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .btn-primary:hover{transform:none}
  .card-post:hover{transform:none}
  .to-top:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#060910;
  --bg-1:#0A111C;
  --bg-2:#101B2A;
  --primary:#12D9A6;
  --primary-deep:#0E9C8A;
  --accent:#FF8A3D;
  --accent-soft:#FFC44D;
  --text-1:#EAF2F7;
  --text-2:#9FB3C4;
  --text-3:#6B7E90;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --glow-primary:0 0 0 1px rgba(18,217,166,.35),0 0 24px -4px rgba(18,217,166,.45);
  --glow-accent:0 0 0 1px rgba(255,138,61,.35),0 0 22px -6px rgba(255,138,61,.5);
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.75),0 1px 0 rgba(255,255,255,.04) inset;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::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','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background-color:var(--bg-1);
  background-image:linear-gradient(180deg,var(--bg-1) 0%,var(--bg-0) 100%);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 60%,transparent);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 60%,transparent);
}
body::after{
  content:"";
  position:fixed;
  top:0;left:50%;
  transform:translateX(-50%);
  width:1200px;height:38vh;
  max-width:150vw;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(closest-side,rgba(18,217,166,.12),transparent 72%);
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;letter-spacing:.01em;}
h1{font-size:28px;line-height:1.25;}
h2{font-size:23px;line-height:1.35;}
h3{font-size:18px;line-height:1.45;font-weight:600;}
h4{font-size:15px;line-height:1.5;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--primary);}
img{max-width:100%;display:block;border-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-family:'Barlow','DIN Alternate',ui-monospace,monospace;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--primary);
  margin-bottom:12px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--text-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background-image:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04140F;
  box-shadow:0 0 0 1px rgba(18,217,166,.35),0 0 16px -6px rgba(18,217,166,.45);
}
.btn-primary:hover{
  color:#04140F;
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:var(--glow-primary);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35);}
.btn-ghost{
  background-color:rgba(255,255,255,.02);
  border:1px solid var(--glass-border);
  color:var(--text-1);
}
.btn-ghost:hover{
  color:var(--text-1);
  border-color:rgba(18,217,166,.6);
  background-color:rgba(18,217,166,.08);
  transform:translateY(-1px);
}
.btn-accent{
  background-image:linear-gradient(135deg,var(--accent) 0%,#E4701F 100%);
  color:#1B0C02;
  box-shadow:var(--glow-accent);
}
.btn-accent:hover{color:#1B0C02;transform:translateY(-1px);filter:brightness(1.05);}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary-deep);
  border-bottom:1px solid transparent;
}
.link-more:hover{color:var(--primary);border-bottom-color:rgba(18,217,166,.6);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background-color:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header.scrolled{
  background-color:rgba(6,9,16,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-side{display:flex;align-items:center;gap:30px;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:0;
  height:2px;
  background-image:linear-gradient(90deg,var(--primary),var(--primary-deep));
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.active::after{width:16px;}
.nav-link.active{color:var(--text-1);}
.logo{
  display:inline-flex;
  align-items:baseline;
  justify-content:center;
  grid-column:2;
  font-size:20px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.01em;
}
.logo:hover{color:var(--text-1);}
.logo .sub{
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  margin-left:6px;
  letter-spacing:.08em;
}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--glass-border);
  background-color:rgba(255,255,255,.04);
  align-items:center;
  justify-content:center;
}
.burger span{
  display:block;
  width:18px;height:2px;
  background-color:var(--text-1);
  position:relative;
  border-radius:2px;
}
.burger span::before,.burger span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background-color:var(--text-1);
  border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.nav-backdrop{
  position:fixed;
  inset:0;
  background-color:rgba(4,7,12,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
  z-index:70;
}
.nav-backdrop.show{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background-color:rgba(8,13,22,.98);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  border-radius:0 0 20px 20px;
  transform:translateY(-105%);
  transition:transform .22s var(--ease);
  padding:16px 0 24px;
}
.nav-drawer.open{transform:translateY(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 24px 12px;
}
.drawer-close{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--glass-border);
  color:var(--text-2);
  font-size:20px;
  line-height:1;
}
.drawer-close:hover{color:var(--text-1);border-color:rgba(18,217,166,.5);}
.drawer-links{display:flex;flex-direction:column;padding:0 12px;}
.drawer-links a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 12px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--primary);}
.drawer-cta{margin:16px 24px 0;width:calc(100% - 48px);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  min-height:44px;
  font-size:13px;
  color:var(--text-2);
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-1);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-2);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.35;
}
.hero-mask{
  position:absolute;
  inset:0;
  background-image:linear-gradient(90deg,rgba(6,9,16,.94) 0%,rgba(6,9,16,.80) 55%,rgba(6,9,16,.66) 100%);
}
.hero-inner{position:relative;z-index:2;padding:22px 0 56px;}
.hero h1{margin:20px 0 16px;max-width:720px;}
.hero .lead{
  max-width:660px;
  font-size:16px;
  color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  background-color:rgba(18,217,166,.12);
  border:1px solid rgba(18,217,166,.25);
}
.badge.neutral{
  color:var(--text-2);
  background-color:rgba(255,255,255,.06);
  border-color:var(--line);
}
.badge.accent{
  color:var(--accent);
  background-color:rgba(255,138,61,.12);
  border-color:rgba(255,138,61,.28);
}

/* ---------- 图文交替 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  margin-bottom:80px;
}
.split:last-child{margin-bottom:0;}
.split.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card);
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-body h2{margin-bottom:16px;}
.split-body p{font-size:16px;margin-bottom:20px;}

.tick-list{display:flex;flex-direction:column;gap:12px;}
.tick-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--text-2);
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:12px;height:12px;
  border-radius:4px;
  border:1px solid rgba(18,217,166,.6);
  background-color:rgba(18,217,166,.14);
}

/* ---------- 编号步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.steps li{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background-color:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.steps li:hover{transform:translateY(-2px);border-color:rgba(18,217,166,.3);}
.step-no{
  display:block;
  font-family:'Barlow','DIN Alternate',ui-monospace,monospace;
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:var(--text-3);
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.steps h3{margin-bottom:8px;}
.steps p{font-size:14px;}

/* ---------- 功能卡 2×2 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.feature-card{
  padding:28px;
  border-radius:var(--radius-card);
  border:1px solid var(--glass-border);
  background-color:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.feature-card:hover{
  transform:translateY(-2px);
  border-color:rgba(18,217,166,.35);
  box-shadow:var(--shadow-card),0 0 28px -14px rgba(18,217,166,.55);
}
.feature-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background-color:rgba(18,217,166,.10);
  border:1px solid rgba(18,217,166,.25);
  color:var(--primary);
  margin-bottom:18px;
}
.feature-icon svg{width:22px;height:22px;}
.feature-card h3{margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--text-2);}

/* ---------- 数据表样式行 ---------- */
.data-table{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background-color:rgba(255,255,255,.03);
  overflow:hidden;
}
.data-row{
  display:grid;
  grid-template-columns:1.3fr 1.9fr 1fr;
  gap:20px;
  align-items:center;
  padding:18px 24px;
  border-bottom:1px solid var(--line);
  font-size:15px;
}
.data-row:last-child{border-bottom:0;}
.data-row.head{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--text-3);
  background-color:rgba(255,255,255,.04);
  font-weight:600;
}
.data-row .cell-strong{color:var(--text-1);font-weight:600;}
.data-row .cell-time{color:var(--accent-soft);font-variant-numeric:tabular-nums;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-side h2{margin-bottom:14px;}
.faq-side p{font-size:15px;margin-bottom:20px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  background-color:rgba(255,255,255,.035);
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item.open{
  border-color:rgba(18,217,166,.35);
  background-color:rgba(18,217,166,.05);
}
.faq-head{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:60px;
  padding:14px 22px;
  text-align:left;
}
.faq-no{
  font-family:'Barlow','DIN Alternate',ui-monospace,monospace;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  flex:0 0 auto;
}
.faq-q{flex:1;font-size:16px;font-weight:600;color:var(--text-1);}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background-color:var(--text-2);
  border-radius:2px;
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-icon::before{left:4px;top:10px;width:14px;height:2px;}
.faq-icon::after{left:10px;top:4px;width:2px;height:14px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);}
.faq-item.open .faq-icon::before{background-color:var(--primary);}
.faq-body{
  display:none;
  padding:0 22px 20px 56px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-item.open .faq-body{display:block;}

/* ---------- CTA ---------- */
.cta-band{
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:center;
  padding:40px 44px;
  border-radius:var(--radius-panel);
  border:1px solid rgba(18,217,166,.25);
  background-image:linear-gradient(120deg,rgba(18,217,166,.10) 0%,rgba(16,27,42,.7) 60%);
  box-shadow:var(--shadow-card);
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{font-size:15px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 内链 ---------- */
.link-panel{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.link-item{
  display:block;
  padding:22px 24px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background-color:rgba(255,255,255,.03);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.link-item:hover{transform:translateY(-2px);border-color:rgba(18,217,166,.3);}
.link-item strong{display:block;color:var(--text-1);font-size:16px;margin-bottom:6px;font-weight:600;}
.link-item span{display:block;font-size:14px;color:var(--text-2);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:40px;
  background-color:rgba(6,9,16,.6);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;
  height:1px;
  background-image:linear-gradient(90deg,transparent,rgba(18,217,166,.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 40px;
}
.footer-brand .logo{display:inline-flex;margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px;}
.site-footer h4{color:var(--text-1);margin-bottom:16px;font-size:15px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding:18px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .split{gap:40px;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .burger{display:flex;grid-column:3;justify-self:end;}
  .logo{grid-column:2;justify-self:center;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .link-panel{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  h1{font-size:28px;}
  h2{font-size:22px;}
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .split{grid-template-columns:1fr;gap:28px;margin-bottom:56px;}
  .split.reverse .split-media{order:0;}
  .steps{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .data-row{grid-template-columns:1fr;gap:6px;padding:16px 18px;}
  .data-row.head{display:none;}
  .data-row .cell-time{padding-top:2px;}
  .link-panel{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .hero-inner{padding:16px 0 44px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-head{padding:14px 16px;gap:12px;}
  .faq-body{padding:0 16px 18px 48px;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:auto;}
  .cta-actions .btn, .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .btn:hover,.feature-card:hover,.steps li:hover,.link-item:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060910;
  --bg-1:#0A111C;
  --bg-2:#101B2A;
  --primary:#12D9A6;
  --primary-deep:#0E9C8A;
  --accent:#FF8A3D;
  --accent-soft:#FFC44D;
  --text-1:#EAF2F7;
  --text-2:#9FB3C4;
  --text-3:#6B7E90;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.75), 0 1px 0 rgba(255,255,255,.04) inset;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text-1);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";
  position:fixed;
  top:-240px;
  left:50%;
  transform:translateX(-50%);
  width:1100px;
  height:620px;
  z-index:0;
  pointer-events:none;
  background:radial-gradient(closest-side,rgba(18,217,166,.12),transparent 72%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(18,217,166,.3);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header.scrolled{
  background:rgba(6,9,16,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  font-size:20px;
  font-weight:700;
  color:#fff;
  justify-self:center;
  white-space:nowrap;
}
.logo .sub{
  font-size:12px;
  font-weight:600;
  color:var(--primary);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04140F;
  box-shadow:0 0 0 1px rgba(18,217,166,.25),0 0 20px -8px rgba(18,217,166,.55);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(18,217,166,.45),0 0 28px -6px rgba(18,217,166,.75);
}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 10px rgba(0,0,0,.35);}
.btn-ghost{
  border:1px solid var(--glass-border);
  color:var(--text-1);
  background:transparent;
}
.btn-ghost:hover{
  border-color:rgba(18,217,166,.6);
  background:rgba(18,217,166,.08);
  transform:translateY(-1px);
}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.burger{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--glass-border);
  justify-self:end;
}
.burger span{position:relative;display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;}
.burger span::before,.burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .2s var(--ease);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.nav-overlay{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(6,9,16,.72);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
}
.nav-overlay.open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:80;
  background:rgba(10,17,28,.97);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transform:translateY(-100%);
  transition:transform .22s var(--ease);
  padding:16px 16px 22px;
}
.nav-drawer.open{transform:translateY(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:8px 8px 14px;
}
.drawer-close{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--glass-border);
  color:var(--text-2);
  font-size:20px;
  line-height:1;
}
.drawer-close:hover{color:var(--text-1);border-color:rgba(18,217,166,.5);}
.drawer-links a{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 10px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--text-1);}
.drawer-links a.active{color:var(--primary);}
.drawer-cta{margin-top:18px;}
.drawer-cta .btn{width:100%;}

/* ============ 页面小 Hero ============ */
.page-hero{
  position:relative;
  isolation:isolate;
  min-height:300px;
  display:flex;
  align-items:center;
  padding:36px 0 46px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  z-index:-2;
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.page-hero-mask{
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(180deg,rgba(6,9,16,.86) 0%,rgba(10,17,28,.95) 100%);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  min-height:40px;
  font-size:13.5px;
  color:var(--text-2);
  margin-bottom:14px;
}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-1);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--primary);
  opacity:.75;
}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
  margin-bottom:16px;
}
.hero-desc{
  max-width:660px;
  font-size:16.5px;
  color:var(--text-2);
  margin-bottom:24px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.chip i{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  display:block;
}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section.tight{padding-top:0;}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(22px,3vw,30px);
  line-height:1.35;
  margin-bottom:12px;
}
.section-sub{
  font-size:15.5px;
  color:var(--text-2);
  max-width:640px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  background:rgba(18,217,166,.12);
  border:1px solid rgba(18,217,166,.25);
}
.badge-muted{
  color:var(--text-2);
  background:rgba(255,255,255,.06);
  border-color:var(--line);
}

/* ============ 数据指标条 ============ */
.stat-strips{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.stat-strip{
  display:flex;
  align-items:flex-start;
  gap:18px;
  padding:22px 24px;
  border-radius:var(--radius-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.stat-strip:hover{
  border-color:rgba(18,217,166,.35);
  transform:translateY(-2px);
}
.stat-icon{
  flex:0 0 44px;
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:rgba(18,217,166,.12);
  border:1px solid rgba(18,217,166,.25);
  color:var(--primary);
}
.stat-icon svg{width:22px;height:22px;}
.stat-body{flex:1;min-width:0;}
.stat-num{
  font-size:30px;
  font-weight:800;
  line-height:1.15;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-num small{
  font-size:13px;
  font-weight:600;
  color:var(--text-2);
  margin-left:6px;
}
.stat-label{
  font-size:14px;
  color:var(--text-2);
  margin-top:2px;
}
.stat-bar{
  height:6px;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
  margin-top:10px;
}
.stat-bar i{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary-deep),var(--primary));
}
.stat-bar.accent i{background:linear-gradient(90deg,var(--accent),var(--accent-soft));}

/* ============ 数据表样式行 ============ */
.data-table{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:rgba(255,255,255,.03);
}
.data-head{
  display:grid;
  grid-template-columns:1.5fr 2.4fr 1fr 1.2fr;
  gap:18px;
  padding:16px 24px;
  font-size:13px;
  color:var(--text-3);
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);
}
.data-row{
  display:grid;
  grid-template-columns:1.5fr 2.4fr 1fr 1.2fr;
  gap:18px;
  align-items:center;
  padding:18px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.data-row:last-child{border-bottom:0;}
.data-row:hover{background:rgba(18,217,166,.05);}
.data-row .name{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
}
.data-row .name i{
  flex:0 0 8px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(18,217,166,.7);
}
.data-row .desc{font-size:14.5px;color:var(--text-2);}
.data-row .time{
  font-size:14px;
  color:var(--accent-soft);
  font-variant-numeric:tabular-nums;
}
.data-row .scope{font-size:14px;color:var(--text-2);}
.data-note{
  margin-top:16px;
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 图集 ============ */
.gallery{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.gallery-item{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:var(--glass-bg);
  box-shadow:var(--shadow-card);
}
.gallery-item img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .3s var(--ease),filter .3s var(--ease);
}
.gallery-item:hover img{transform:scale(1.03);filter:brightness(1.08);}
.gallery-cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:38px 16px 14px;
  font-size:14px;
  color:var(--text-1);
  background:linear-gradient(180deg,transparent,rgba(6,9,16,.92));
}
.tag-hot{
  position:absolute;
  top:12px;
  left:12px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#04140F;
  background:linear-gradient(135deg,var(--accent),var(--accent-soft));
  box-shadow:0 0 18px -6px rgba(255,138,61,.7);
}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:40px;
  align-items:start;
}
.faq-intro h2{
  font-size:clamp(22px,3vw,30px);
  margin-bottom:12px;
}
.faq-intro p{
  font-size:15px;
  color:var(--text-2);
  max-width:320px;
  margin-bottom:16px;
}
.text-link{
  color:var(--primary-deep);
  font-size:14.5px;
  font-weight:600;
  border-bottom:1px solid rgba(18,217,166,.35);
  padding-bottom:2px;
}
.text-link:hover{color:var(--primary);border-bottom-color:var(--primary);}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.03);
  margin-bottom:12px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item.open{
  border-color:rgba(18,217,166,.35);
  background:rgba(18,217,166,.05);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  min-height:56px;
  padding:14px 20px;
  text-align:left;
  font-size:16.5px;
  color:var(--text-1);
}
.faq-idx{
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.faq-sign{
  margin-left:auto;
  font-size:20px;
  line-height:1;
  color:var(--text-2);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-item.open .faq-sign{transform:rotate(45deg);color:var(--primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s var(--ease);
}
.faq-a p{
  padding:0 20px 18px 60px;
  font-size:15px;
  color:var(--text-2);
}
.faq-item.open .faq-a{max-height:360px;}

/* ============ 内链列表 ============ */
.link-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px;
}
.link-item{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:20px 22px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:16px;
  font-weight:600;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.link-item span{
  font-size:14px;
  font-weight:400;
  color:var(--text-2);
}
.link-item:hover{
  border-color:rgba(18,217,166,.35);
  background:rgba(18,217,166,.06);
  transform:translateY(-2px);
}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  padding:38px 40px;
  border-radius:var(--radius-lg);
  border:1px solid var(--glass-border);
  background:linear-gradient(135deg,rgba(18,217,166,.10),rgba(255,138,61,.06)),rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
}
.cta-band h2{
  font-size:clamp(20px,2.6vw,26px);
  margin-bottom:8px;
}
.cta-band p{
  font-size:15px;
  color:var(--text-2);
  max-width:520px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:2;
  margin-top:24px;
  padding:56px 0 28px;
  background:var(--bg-0);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,217,166,.45),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:34px;
  border-bottom:1px solid var(--line);
}
.footer-brand .logo{
  font-size:19px;
  justify-self:start;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-2);
  max-width:340px;
}
.site-footer h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a,.footer-links span{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:20px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-grid{grid-template-columns:44px 1fr 44px;height:64px;}
  .nav-side{display:none;}
  .logo{grid-column:2;justify-self:center;font-size:18px;}
  .burger{display:inline-flex;grid-column:3;justify-self:end;}
  .stat-strips{grid-template-columns:1fr;}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .faq-intro p{max-width:none;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .section{padding:56px 0;}
  .page-hero{min-height:auto;padding:28px 0 40px;}
}
@media (max-width:768px){
  .data-head{display:none;}
  .data-row{
    grid-template-columns:1fr;
    gap:8px;
    padding:18px;
  }
  .data-row > div::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--text-3);
    margin-bottom:2px;
  }
  .data-row .name::before{margin-bottom:4px;}
  .link-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .hero-desc{font-size:15.5px;}
  .gallery{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .nav-cta,.drawer-cta .btn{width:auto;}
  .hero-actions .btn{width:100%;}
  .stat-strip{padding:20px;}
  .faq-a p{padding:0 16px 16px 48px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060910;--bg-1:#0A111C;--bg-2:#101B2A;
  --primary:#12D9A6;--primary-deep:#0E9C8A;
  --accent:#FF8A3D;--accent-soft:#FFC44D;
  --text-1:#EAF2F7;--text-2:#9FB3C4;--text-3:#6B7E90;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --radius-card:16px;--radius-lg:20px;--radius-btn:10px;
  --shadow-card:0 18px 40px -18px rgba(0,0,0,.75),0 1px 0 rgba(255,255,255,.04) inset;
  --glow-primary:0 0 0 1px rgba(18,217,166,.35),0 0 24px -4px rgba(18,217,166,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-1);color:var(--text-1);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:.01em;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";position:fixed;top:-8%;left:50%;transform:translateX(-50%);width:min(1100px,120vw);height:38vh;
  pointer-events:none;z-index:0;background:radial-gradient(closest-side,rgba(18,217,166,.12),transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
main,header,footer,.float-bar{position:relative;z-index:1}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease),filter 200ms var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#12D9A6 0%,#0E9C8A 100%);
  color:#04140F;box-shadow:0 0 0 1px rgba(18,217,166,.30),0 0 20px -6px rgba(18,217,166,.42);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:var(--glow-primary)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn-ghost{background:transparent;border-color:var(--glass-border);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(18,217,166,.6);background:rgba(18,217,166,.08);transform:translateY(-1px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid transparent;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease),backdrop-filter 200ms var(--ease);
}
.site-header.scrolled{
  background:rgba(6,9,16,.74);backdrop-filter:blur(14px);border-bottom-color:var(--line);
}
.nav-grid{position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px}
.nav-side{display:flex;align-items:center;gap:24px}
.nav-side.right{justify-content:flex-end;gap:20px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  font-size:15px;color:var(--text-2);transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:8px;width:0;height:2px;border-radius:2px;
  background:var(--primary);transition:width 200ms var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{width:16px}
.logo{
  display:inline-flex;align-items:baseline;gap:6px;justify-self:center;
  font-size:20px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;
}
.logo .sub{font-size:12px;font-weight:600;color:var(--primary);letter-spacing:.02em}
.nav-cta{min-height:42px;padding:0 20px;font-size:14px}
.burger{
  display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border:1px solid var(--glass-border);border-radius:12px;background:var(--glass-bg);
  cursor:pointer;padding:0;
}
.burger span{display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:var(--text-1);transition:transform 200ms var(--ease),opacity 200ms var(--ease)}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,10,.6);opacity:0;pointer-events:none;
  transition:opacity 220ms var(--ease);z-index:54;
}
.nav-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;left:0;right:0;top:72px;z-index:56;padding:16px 24px 22px;
  background:rgba(6,9,16,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  transform:translateY(-14px);opacity:0;pointer-events:none;
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-link{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color 200ms var(--ease);
}
.drawer-link:hover,.drawer-link.active{color:var(--primary)}
.drawer-cta{width:100%;margin-top:18px}

/* ============ 分类页顶部 ============ */
.page-hero{
  position:relative;padding:60px 0 56px;
  background-image:linear-gradient(180deg,rgba(6,9,16,.86) 0%,rgba(10,17,28,.95) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:20px}
.crumbs a{color:var(--text-2);transition:color 200ms var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--text-3)}
.crumbs .current{color:var(--text-1)}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.25;max-width:820px;
  letter-spacing:.01em;
}
.page-hero .hero-sub{margin-top:16px;max-width:720px;color:var(--text-2);font-size:16.5px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  background:rgba(18,217,166,.12);border:1px solid rgba(18,217,166,.28);
}
.badge-neutral{color:var(--text-2);background:rgba(255,255,255,.06);border-color:var(--glass-border)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;font-size:14px;
  color:var(--text-1);background:rgba(18,217,166,.09);border:1px solid rgba(18,217,166,.24);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.tag:hover{transform:translateY(-2px);border-color:rgba(18,217,166,.55);background:rgba(18,217,166,.16)}

/* ============ 区块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0 0}
.section-head{max-width:780px;margin-bottom:40px}
.eyebrow{display:block;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.06em;text-transform:uppercase}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin:12px 0 12px}
.section-head p{color:var(--text-2);font-size:16px}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(18,217,166,.3),transparent)}

/* ============ 双列文字段落 ============ */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.prose-card{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-card);
  padding:28px;backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  transition:border-color 200ms var(--ease),transform 200ms var(--ease);
}
.prose-card:hover{border-color:rgba(18,217,166,.35);transform:translateY(-2px)}
.prose-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:12px}
.prose-card p{color:var(--text-2);font-size:15.5px}
.prose-card p + p{margin-top:12px}
.mini-list{margin-top:18px;display:grid;gap:10px}
.mini-list li{position:relative;padding-left:18px;color:var(--text-2);font-size:14.5px}
.mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 3px rgba(18,217,166,.12);
}
.figure-card{
  margin-bottom:28px;border:1px solid var(--glass-border);border-radius:var(--radius-card);
  overflow:hidden;background:var(--glass-bg);box-shadow:var(--shadow-card);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-card figcaption{padding:14px 20px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:30px;max-width:900px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(18,217,166,.14);
}
.tl-time{display:block;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.tl-title{font-size:17px;font-weight:600;line-height:1.5;margin:6px 0 6px;transition:color 200ms var(--ease)}
.tl-item:hover .tl-title{color:var(--primary)}
.tl-desc{color:var(--text-2);font-size:14.5px;max-width:720px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 2fr;gap:44px;align-items:start}
.faq-aside h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin:12px 0 12px}
.faq-aside p{color:var(--text-2);font-size:15.5px}
.text-link{
  display:inline-block;margin-top:16px;color:var(--primary);font-size:14.5px;font-weight:600;
  border-bottom:1px solid rgba(18,217,166,.4);transition:color 200ms var(--ease),border-color 200ms var(--ease);
}
.text-link:hover{color:#5CF0C6;border-color:#5CF0C6}
.faq-item{
  border:1px solid var(--glass-border);border-radius:14px;background:var(--glass-bg);
  margin-bottom:12px;overflow:hidden;backdrop-filter:blur(14px);
  transition:border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.faq-item.open{border-color:rgba(18,217,166,.35);background:rgba(18,217,166,.05)}
.faq-head{
  display:flex;align-items:center;gap:14px;width:100%;min-height:56px;padding:16px 20px;
  background:none;border:0;text-align:left;cursor:pointer;color:var(--text-1);font-size:16.5px;font-weight:500;
}
.faq-num{flex:none;font-size:13px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.faq-icon{position:relative;flex:none;margin-left:auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);transition:transform 200ms var(--ease),opacity 200ms var(--ease)}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;border-radius:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;border-radius:2px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-body{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease)}
.faq-body-inner{padding:0 20px 20px 46px;color:var(--text-2);font-size:14.8px}

/* ============ 内链列表 ============ */
.link-rows{display:grid;gap:14px;max-width:900px}
.link-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;border:1px solid var(--glass-border);border-radius:14px;background:var(--glass-bg);
  backdrop-filter:blur(14px);transition:transform 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);
}
.link-row:hover{transform:translateX(2px);border-color:rgba(18,217,166,.4);background:rgba(18,217,166,.06)}
.link-row .lr-title{font-size:16.5px;font-weight:600}
.link-row .lr-desc{display:block;margin-top:4px;font-size:14px;color:var(--text-2);font-weight:400}
.link-row .lr-arrow{flex:none;width:20px;height:20px;color:var(--primary);transition:transform 200ms var(--ease)}
.link-row:hover .lr-arrow{transform:translateX(3px)}

/* ============ CTA ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px;border-radius:var(--radius-lg);border:1px solid var(--glass-border);
  background:linear-gradient(135deg,rgba(18,217,166,.14) 0%,rgba(255,138,61,.10) 100%);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:96px;padding:64px 0 32px;background:var(--bg-0);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,217,166,.3),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{justify-self:start;font-size:19px}
.footer-brand p{margin-top:16px;color:var(--text-2);font-size:14.5px;max-width:320px}
.site-footer h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{color:var(--text-2);font-size:14px;transition:color 200ms var(--ease)}
.footer-links a:hover{color:var(--primary)}
.footer-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);
}

/* ============ 浮动操作条 ============ */
.float-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:50;
  padding:12px 16px;background:rgba(6,9,16,.92);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.float-bar .btn{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-side{display:none}
  .burger{display:block}
  .nav-grid{grid-template-columns:1fr auto 1fr}
  .two-col{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0 0}
  .page-hero{padding:44px 0 44px}
  .cta-band{padding:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:48px 0 26px;margin-top:64px}
  .faq-body-inner{padding-left:20px}
  .float-bar{display:block}
  body{padding-bottom:76px}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .link-row{flex-direction:column;align-items:flex-start;gap:10px}
  .link-row .lr-arrow{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:1ms !important;animation-duration:1ms !important}
  html{scroll-behavior:auto}
}