/* roulang page: index */
:root{
  --brand:#00E3C2;
  --brand-2:#8B5CF6;
  --accent:#FF6A3D;
  --bg:#12101C;
  --panel:#1A1729;
  --panel-3:#221E33;
  --text:#F2F0FA;
  --text-2:#A9A3C2;
  --text-3:#6F6989;
  --line:rgba(255,255,255,.08);
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --sp:8px;
  --maxw:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--text);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text);}
h1{font-size:40px;font-weight:800;letter-spacing:-.5px;}
h2{font-size:28px;font-weight:700;}
h3{font-size:19px;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.band-deep{background:#0D0B16;}

.sub{color:var(--text-2);font-size:16px;}
.mute{color:var(--text-3);font-size:13px;}
.mono{font-variant-numeric:tabular-nums;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:13px;color:var(--text-3);}

.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head h2{position:relative;padding-left:18px;}
.sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--brand-2));}
.sec-head .sub{margin-top:12px;}

.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-btn);font-size:16px;font-weight:600;padding:12px 22px;border:1px solid transparent;transition:transform .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;cursor:pointer;}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--brand);color:#06231F;}
.btn-primary:hover{background:var(--brand);filter:brightness(1.08);color:#06231F;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);}
.btn-ghost:hover{border-color:rgba(0,227,194,.6);color:var(--brand);}
.btn-accent{background:var(--accent);color:#2A0F05;}
.btn-accent:hover{background:var(--accent);filter:brightness(1.08);color:#2A0F05;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;justify-content:center;}

.badge-tag{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(0,227,194,.45);color:var(--brand);border-radius:999px;font-size:12px;padding:3px 12px;background:transparent;}
.badge-purple{border-color:rgba(139,92,246,.5);color:#C4B5FD;}

/* header */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(18,16,28,.92);border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#0B0A12;font-weight:800;font-size:15px;letter-spacing:.5px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--text);}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.4px;}
.nav-collapse{flex:1 1 auto;}
.nav-list{display:flex;align-items:center;gap:8px;}
.nav-list a{display:inline-block;padding:8px 14px;border-radius:8px;font-size:15px;color:var(--text-2);position:relative;}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-list a.active{color:var(--brand);}
.nav-list a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.mega{position:relative;}
.mega-btn{background:transparent;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-btn);color:var(--text-2);font-size:14px;padding:9px 14px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;transition:border-color .22s ease,color .22s ease;}
.mega-btn:hover{border-color:rgba(0,227,194,.6);color:var(--brand);}
.mega-panel{position:absolute;right:0;top:calc(100% + 14px);width:560px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .22s ease,transform .22s ease,visibility .22s;}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:13px;color:var(--text-3);letter-spacing:.6px;margin-bottom:12px;}
.mega-links li+li{margin-top:6px;}
.mega-links a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.mega-links a:hover{color:var(--brand);}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:0;}
.mega-post span{display:block;font-size:14px;color:var(--text-2);line-height:1.5;}
.mega-post .mono{margin-top:4px;}
.nav-burger{background:transparent;border:1px solid rgba(255,255,255,.16);border-radius:10px;color:var(--text);width:42px;height:38px;display:grid;place-items:center;margin-left:auto;cursor:pointer;}
.nav-mobile-extra{display:none;}

/* hero */
.hero{position:relative;overflow:hidden;padding:88px 0 80px;background:
  radial-gradient(900px 480px at 12% -10%,rgba(139,92,246,.18),transparent 60%),
  radial-gradient(760px 420px at 92% 8%,rgba(0,227,194,.14),transparent 62%),
  var(--bg);}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{margin:16px 0 18px;}
.hero .lead{font-size:17px;color:var(--text-2);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 0;}
.hero-stats{display:flex;gap:40px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap;}
.hero-stats .num{font-size:26px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}
.hero-stats .lbl{font-size:13px;color:var(--text-3);margin-top:2px;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;height:400px;object-fit:cover;border:1px solid var(--line);box-shadow:var(--shadow);}
.hero-visual .cut{position:absolute;left:-14px;bottom:-14px;width:120px;height:120px;background:linear-gradient(45deg,var(--brand),var(--brand-2));opacity:.85;clip-path:polygon(0 100%,100% 100%,100% 42%);border-radius:var(--r-img);}
.hero-visual .chip{position:absolute;right:18px;top:18px;background:rgba(13,11,22,.86);border:1px solid rgba(0,227,194,.4);border-radius:999px;font-size:12px;color:var(--brand);padding:6px 14px;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;}
.steps::before{content:"";position:absolute;left:8%;right:8%;top:26px;height:1px;background:repeating-linear-gradient(90deg,rgba(0,227,194,.5) 0 8px,transparent 8px 16px);}
.step{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;transition:transform .24s ease,border-color .24s ease;}
.step:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);}
.step .no{font-family:"SFMono-Regular",Consolas,monospace;font-size:22px;font-weight:700;color:var(--brand);}
.step .ico{width:40px;height:40px;border-radius:10px;background:rgba(139,92,246,.18);color:#C4B5FD;display:grid;place-items:center;margin:14px 0 16px;font-size:17px;}
.step h3{margin-bottom:8px;}
.step p{font-size:15px;color:var(--text-2);}

/* metrics band */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;}
.metric .k{font-size:13px;color:var(--text-3);}
.metric .v{font-size:28px;font-weight:800;color:var(--text);margin-top:6px;font-variant-numeric:tabular-nums;}
.metric .bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);margin-top:16px;overflow:hidden;}
.metric .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-2));}

/* cases */
.case{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:56px;}
.case:last-child{margin-bottom:0;}
.case.reverse .case-media{order:2;}
.case-media img{width:100%;height:300px;object-fit:cover;border:1px solid var(--line);box-shadow:var(--shadow);}
.case h3{margin-bottom:12px;font-size:21px;}
.case p{font-size:15px;color:var(--text-2);margin-bottom:14px;}
.case ul li{font-size:15px;color:var(--text-2);padding-left:18px;position:relative;margin-bottom:6px;}
.case ul li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--brand);}
.case .stat{margin-top:18px;}
.case .stat .rowv{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3);margin-bottom:8px;}
.case .stat .rowv b{color:var(--brand);font-variant-numeric:tabular-nums;}
.case .stat .track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.case .stat .track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-2));}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);box-shadow:var(--shadow);}
.cat-card img{width:100%;height:170px;object-fit:cover;border-radius:0;}
.cat-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cat-card h3 a:hover{color:var(--brand);}
.cat-card p{font-size:14px;color:var(--text-2);}
.cat-card .more{margin-top:auto;font-size:14px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}

/* cms list */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .24s ease,border-color .24s ease;}
.info-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);}
.info-card .thumb{display:block;aspect-ratio:16/9;overflow:hidden;}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .26s ease;}
.info-card:hover .thumb img{transform:scale(1.04);}
.info-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.info-card h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card h3 a:hover{color:var(--brand);}
.info-card .ex{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card .meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);}
.empty-state{grid-column:1/-1;border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-card);padding:48px 24px;text-align:center;color:var(--text-3);font-size:15px;}
.empty-state i{display:block;font-size:26px;color:var(--text-3);margin-bottom:12px;}

/* faq */
.faq-grid{display:grid;grid-template-columns:1.6fr .9fr;gap:32px;align-items:start;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);overflow:hidden;margin-bottom:12px;transition:border-color .22s ease;}
.faq-item.open{border-color:rgba(0,227,194,.35);}
.faq-q{width:100%;background:transparent;border:0;color:var(--text);text-align:left;font-size:16px;font-weight:600;padding:18px 20px;display:flex;justify-content:space-between;gap:16px;align-items:center;cursor:pointer;}
.faq-q i{color:var(--text-3);transition:transform .22s ease,color .22s ease;font-size:14px;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--brand);}
.faq-a{display:none;padding:0 20px 20px 20px;font-size:15px;color:var(--text-2);border-left:3px solid var(--brand);background:var(--panel-3);}
.faq-item.open .faq-a{display:block;}
.faq-side{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;}
.faq-side h3{margin-bottom:10px;}
.faq-side p{font-size:14px;color:var(--text-2);margin-bottom:20px;}

/* cta band */
.cta-band{position:relative;overflow:hidden;background:#0D0B16;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:80px 0;}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;
  background:repeating-linear-gradient(45deg,rgba(0,227,194,.07) 0 2px,transparent 2px 14px);}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{margin-bottom:10px;}
.cta-inner .sub{max-width:620px;}

/* form */
.form-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;color:var(--text-2);}
.field input,.field select,.field textarea{background:var(--panel);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:12px 14px;font-size:15px;font-family:inherit;transition:border-color .22s ease;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);outline:none;}
.field .hint{font-size:12px;color:var(--text-3);}
.field .err{font-size:12px;color:var(--accent);}

/* footer */
.site-footer{background:#0D0B16;border-top:1px solid var(--line);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-3);max-width:280px;}
.foot-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.foot-links li+li{margin-top:10px;}
.foot-links a{font-size:14px;color:var(--text-3);}
.foot-links a:hover{color:var(--brand);}
.foot-contact li{font-size:14px;color:var(--text-3);margin-bottom:10px;}
.foot-contact li i{color:var(--brand);margin-right:8px;width:16px;}
.foot-bottom{margin-top:48px;border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}

@media (max-width:1199px){
  h1{font-size:34px;}
  h2{font-size:25px;}
  .hero-visual img{height:360px;}
  .mega-panel{width:480px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  h1{font-size:31px;}
  .nav-collapse.collapse{display:none !important;}
  .nav-collapse.collapse.show{display:block !important;}
  .nav-collapse{flex:1 1 100%;border-top:1px solid var(--line);margin-top:12px;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;padding:12px 0;}
  .nav-list a{padding:12px 8px;}
  .nav-list a.active::after{display:none;}
  .nav-list a.active{background:rgba(0,227,194,.08);border-radius:8px;}
  .nav-mobile-extra{display:block;padding:8px 0 20px;}
  .nav-mobile-extra .btn{width:100%;justify-content:center;margin-top:10px;}
  .nav-mobile-group{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);}
  .nav-mobile-group .mega-title{margin-bottom:8px;}
  .nav-mobile-group a{display:block;font-size:14px;color:var(--text-2);padding:8px 0;}
  .nav-mobile-group a:hover{color:var(--brand);}
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;}
  .hero-visual img{height:280px;}
  .steps{grid-template-columns:1fr 1fr;gap:24px;}
  .steps::before{display:none;}
  .metrics{grid-template-columns:1fr 1fr;}
  .case{grid-template-columns:1fr;gap:24px;}
  .case.reverse .case-media{order:0;}
  .cat-grid{grid-template-columns:1fr 1fr;}
  .info-grid{grid-template-columns:1fr 1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  h1{font-size:27px;}
  h2{font-size:22px;}
  h3{font-size:17px;}
  .container,.wrap{padding:0 16px;}
  .hero-stats{gap:24px;}
  .hero-stats .num{font-size:22px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;justify-content:center;}
}
@media (max-width:575px){
  h1{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .cat-grid,.info-grid,.metrics{grid-template-columns:1fr;}
  .hero-visual img{height:220px;}
  .hero-cta .btn{width:100%;justify-content:center;}
  .brand-text em{display:none;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --bg:#12101C;
  --panel:#1A1729;
  --panel-2:#221E33;
  --line:rgba(255,255,255,.08);
  --text:#F2F0FA;
  --text-2:#A9A3C2;
  --text-3:#6F6989;
  --brand:#00E3C2;
  --brand-2:#8B5CF6;
  --accent:#FF6A3D;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px; --s7:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm);}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,opacity .22s ease;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:ui-monospace,"SFMono-Regular","JetBrains Mono",Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;cursor:pointer;
  transition:transform .22s ease,filter .22s ease,border-color .22s ease,background-color .22s ease,color .22s ease;
}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-lg{padding:17px 34px;font-size:17px;}
.btn-primary{background:var(--brand);color:#0B1017;}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#0B1017;}
.btn-accent{background:var(--accent);color:#1A0B05;}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-2px);color:#1A0B05;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);}
.btn-ghost:hover{border-color:rgba(0,227,194,.6);color:var(--brand);transform:translateY(-2px);}
.btn:active{transform:translateY(0);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#12101C;border-bottom:1px solid var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;position:relative;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#0B0A12;font-weight:800;font-size:15px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text);}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.4px;}
.nav-collapse{flex:1;display:flex;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:30px;}
.nav-list a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--text-2);font-weight:500;
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-list a:hover{color:var(--text);}
.nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1);}
.nav-list a.active{color:var(--brand);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-burger{
  width:42px;height:42px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--panel);color:var(--text);font-size:17px;cursor:pointer;
}
.nav-burger:hover{border-color:rgba(0,227,194,.5);color:var(--brand);}
.nav-mobile-extra{display:none;}
.mega{position:relative;}
.mega-btn{
  display:inline-flex;align-items:center;gap:7px;
  background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text-2);
  border-radius:var(--radius-btn);padding:11px 16px;font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .22s ease,color .22s ease;
}
.mega-btn:hover,.mega:focus-within .mega-btn{border-color:rgba(0,227,194,.6);color:var(--brand);}
.mega-btn i{font-size:11px;}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:580px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:grid;grid-template-columns:1fr 1.35fr;gap:24px;
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-panel::before{content:"";position:absolute;top:-14px;right:0;left:0;height:14px;}
.mega-title{font-size:12px;color:var(--text-3);letter-spacing:1px;margin-bottom:12px;}
.mega-links li{margin-bottom:8px;}
.mega-links a{display:block;font-size:14px;color:var(--text-2);padding:7px 10px;border-radius:8px;}
.mega-links a:hover{background:var(--panel-2);color:var(--brand);}
.mega-post{display:block;padding:12px;border-radius:10px;border:1px solid var(--line);margin-bottom:10px;}
.mega-post:hover{border-color:rgba(0,227,194,.4);background:var(--panel-2);}
.mega-post span:first-child{display:block;font-size:14px;color:var(--text);line-height:1.5;margin-bottom:6px;}
.mega-post .mono{font-size:12px;color:var(--text-3);}
@media (min-width:992px){
  .nav-collapse.collapse{display:flex !important;}
}
@media (max-width:991.98px){
  .nav-wrap{height:60px;}
  .nav-collapse.show{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;top:60px;left:-24px;right:-24px;
    background:#151223;border-bottom:1px solid var(--line);
    padding:18px 24px 26px;max-height:calc(100vh - 60px);overflow-y:auto;
    box-shadow:var(--shadow);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-list a{padding:13px 4px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-list a::after{display:none;}
  .nav-list a.active{color:var(--brand);}
  .nav-mobile-extra{display:block;margin-top:18px;}
  .nav-mobile-extra .btn{width:100%;}
  .nav-mobile-group{margin-top:20px;}
  .nav-mobile-group a{display:block;padding:11px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
}

/* ============ 面包屑 ============ */
.crumb-wrap{padding:22px 0;border-bottom:1px solid var(--line);background:#100E19;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--text-3);}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs li[aria-current]{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.article-shell{padding:56px 0 8px;}
.article-head{max-width:860px;margin:0 auto;text-align:left;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.5px;
  color:var(--brand);border:1px solid rgba(0,227,194,.45);
  border-radius:999px;padding:5px 14px;background:rgba(0,227,194,.06);
}
.article-head h1{
  font-size:40px;line-height:1.35;font-weight:800;margin:20px 0 18px;letter-spacing:.4px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-3);}
.meta-row i{margin-right:6px;color:var(--text-3);}
.meta-row .dot{color:var(--text-3);}
.article-cover{margin:32px 0 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel);}
.article-cover img{border-radius:0;width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ============ 正文 ============ */
.article-body{padding:48px 0 0;}
.article-content{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:#DAD6EC;}
.article-content h2{
  position:relative;font-size:26px;line-height:1.5;font-weight:700;color:var(--text);
  margin:48px 0 18px;padding-left:14px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;
  background:var(--brand);
}
.article-content h3{font-size:19px;font-weight:600;color:var(--text);margin:32px 0 12px;}
.article-content h4{font-size:17px;font-weight:600;color:var(--text);margin:24px 0 10px;}
.article-content p{margin:0 0 20px;}
.article-content a{color:var(--brand);border-bottom:1px solid rgba(0,227,194,.4);}
.article-content a:hover{border-bottom-color:var(--brand);}
.article-content strong{color:var(--text);font-weight:600;}
.article-content ul,.article-content ol{margin:0 0 22px;padding-left:24px;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:10px;}
.article-content img{margin:26px auto;border-radius:var(--radius-sm);}
.article-content figure{margin:28px 0;}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-content blockquote{
  margin:28px 0;padding:18px 24px;background:var(--panel);
  border-left:4px solid var(--brand-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;line-height:1.7;
}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left;}
.article-content thead th{background:var(--panel-2);color:var(--text);font-weight:600;}
.article-content tbody tr:nth-child(odd){background:rgba(255,255,255,.02);}
.article-content code{
  font-family:ui-monospace,Consolas,monospace;font-size:14px;color:var(--brand);
  background:var(--panel-2);padding:2px 6px;border-radius:6px;
}
.article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ============ 空状态 ============ */
.empty-state{
  max-width:780px;margin:0 auto;text-align:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:64px 32px;box-shadow:var(--shadow);
}
.empty-state i{font-size:40px;color:var(--text-3);margin-bottom:18px;display:block;}
.empty-state strong{display:block;font-size:22px;font-weight:700;color:var(--text);margin-bottom:10px;}
.empty-tip{font-size:15px;color:var(--text-2);margin-bottom:26px;}

/* ============ 文末操作 ============ */
.article-foot{
  max-width:780px;margin:48px auto 0;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-foot .tip{font-size:13px;color:var(--text-3);}
.article-foot .actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 相关推荐 ============ */
.related{padding:88px 0;}
.section-head{max-width:680px;margin-bottom:36px;}
.section-head h2{font-size:28px;font-weight:700;line-height:1.45;}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:20px;border-radius:2px;
  background:var(--brand);margin-right:12px;vertical-align:-3px;
}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);box-shadow:var(--shadow);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.rel-body{padding:20px 22px 24px;}
.badge-line{
  display:inline-block;font-size:12px;color:var(--brand-2);
  border:1px solid rgba(139,92,246,.45);border-radius:999px;padding:3px 11px;margin-bottom:12px;
}
.rel-body h3{font-size:18px;line-height:1.55;font-weight:600;margin-bottom:10px;}
.rel-body p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ============ CTA ============ */
.cta-band{
  background-color:#0D0B16;
  background-image:repeating-linear-gradient(45deg,rgba(0,227,194,.06) 0 12px,transparent 12px 24px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:80px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:30px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--text-2);max-width:620px;}

/* ============ 页脚 ============ */
.site-footer{background:#0D0B16;border-top:1px solid var(--line);padding:68px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand p{margin-top:18px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px;}
.foot-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:18px;}
.foot-links li,.foot-contact li{margin-bottom:12px;font-size:14px;color:var(--text-2);}
.foot-links a{color:var(--text-2);}
.foot-links a:hover{color:var(--brand);}
.foot-contact i{width:18px;color:var(--brand);margin-right:8px;}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-head h1{font-size:34px;}
  .rel-grid{gap:20px;}
  .mega-panel{width:520px;}
}
@media (max-width:991.98px){
  body{font-size:16px;}
  .article-shell{padding:40px 0 0;}
  .article-head h1{font-size:30px;}
  .article-content{font-size:16.5px;line-height:1.85;}
  .article-content h2{font-size:22px;}
  .related{padding:64px 0;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner h2{font-size:24px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .article-head h1{font-size:26px;line-height:1.42;}
  .article-cover img{aspect-ratio:16/10;}
  .article-content h2{font-size:20px;margin:36px 0 14px;}
  .article-content h3{font-size:17px;}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:60px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .article-foot .actions{width:100%;}
  .article-foot .actions .btn{flex:1;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .crumbs li[aria-current]{max-width:180px;}
  .article-head h1{font-size:23px;}
  .article-content{font-size:16px;}
  .rel-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .rel-body{padding:18px 18px 22px;}
}

/* roulang page: category1 */
:root{
  --elec:#00E3C2;
  --elec-soft:rgba(0,227,194,.14);
  --elec-line:rgba(0,227,194,.4);
  --neon:#8B5CF6;
  --neon-soft:rgba(139,92,246,.16);
  --warm:#FF6A3D;
  --bg:#12101C;
  --panel:#1A1729;
  --panel-2:#221E33;
  --foot:#0D0B16;
  --text:#F2F0FA;
  --text-2:#A9A3C2;
  --text-3:#6F6989;
  --line:rgba(255,255,255,.08);
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --container:1200px;
  --sec-pad:96px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",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:var(--font);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,transform .22s ease;}
a:hover{color:var(--elec);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--elec);outline-offset:2px;}
.container{max-width:var(--container);width:100%;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(18,16,28,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--mono);font-weight:700;font-size:16px;color:#0B0A12;
  background:linear-gradient(135deg,var(--elec),var(--neon));
  box-shadow:0 6px 18px rgba(0,227,194,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text);}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.4px;}
.nav-burger{
  margin-left:auto;background:transparent;border:1px solid var(--line);color:var(--text);
  width:42px;height:42px;border-radius:var(--r-btn);font-size:17px;
}
.nav-collapse{flex:1;}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-list a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;display:inline-block;
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--elec);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-list a:hover{color:var(--text);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.active{color:var(--text);font-weight:600;}
.nav-list a.active::after{transform:scaleX(1);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-mobile-extra{display:none;}

/* Mega 面板 */
.mega{position:relative;}
.mega-btn{
  background:transparent;border:1px solid var(--line);color:var(--text-2);
  border-radius:var(--r-btn);padding:8px 14px;font-size:14px;display:inline-flex;align-items:center;gap:8px;
}
.mega-btn:hover,.mega.open .mega-btn{border-color:var(--elec-line);color:var(--text);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:540px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:24px;display:grid;grid-template-columns:1fr 1.15fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.mega:hover .mega-panel,.mega.open .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:13px;color:var(--text-3);letter-spacing:1px;margin-bottom:12px;}
.mega-links li{margin-bottom:10px;}
.mega-links a{font-size:15px;color:var(--text-2);}
.mega-links a:hover{color:var(--elec);}
.mega-post{
  display:block;padding:12px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;
  background:var(--panel-2);
}
.mega-post span:first-child{display:block;font-size:14px;color:var(--text);line-height:1.6;}
.mega-post .mono{display:block;font-family:var(--mono);font-size:12px;color:var(--text-3);margin-top:6px;}
.mega-post:hover{border-color:var(--elec-line);transform:translateY(-2px);}

/* ============ 按钮 ============ */
.btn-elec,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,filter .2s ease,border-color .2s ease,background-color .2s ease;
}
.btn-elec{background:var(--elec);color:#08201C;}
.btn-elec:hover{filter:brightness(1.08);transform:translateY(-2px);color:#08201C;}
.btn-ghost{background:transparent;border-color:var(--elec-line);color:var(--elec);}
.btn-ghost:hover{background:var(--elec-soft);color:var(--elec);transform:translateY(-2px);}
.btn-accent{background:var(--warm);color:#210C05;}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-2px);color:#210C05;}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ============ 分类首屏 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  padding:72px 0 80px;
  background-image:linear-gradient(90deg,rgba(18,16,28,.96) 0%,rgba(18,16,28,.86) 48%,rgba(18,16,28,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;opacity:.7;
}
.cat-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--elec);}
.crumbs span.sep{color:var(--text-3);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--elec);
  border:1px solid var(--elec-line);background:var(--elec-soft);
  padding:5px 14px;border-radius:999px;margin-bottom:20px;
}
.cat-hero h1{font-size:40px;line-height:1.3;font-weight:800;max-width:820px;}
.cat-hero h1 .hl{color:var(--elec);}
.hero-sub{color:var(--text-2);font-size:17px;max-width:720px;margin-top:18px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.hero-stats .num{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--elec);line-height:1.2;}
.hero-stats .lab{font-size:13px;color:var(--text-2);margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;}
.section-alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{font-size:28px;position:relative;padding-left:16px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--elec),var(--neon));
}
.sec-head p{color:var(--text-2);font-size:16px;margin-top:14px;}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:2px;color:var(--text-3);margin-bottom:12px;}

/* ============ 资源列表 + 筛选栏 ============ */
.layout-8-4{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.intro-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;margin-bottom:24px;
}
.intro-card p{color:var(--text-2);font-size:16px;}
.intro-card p + p{margin-top:12px;}
.res-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.res-head h3{font-size:19px;}
.res-head .count{font-family:var(--mono);font-size:13px;color:var(--text-3);}
.res-list{display:flex;flex-direction:column;gap:14px;}
.res-item{
  position:relative;display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:18px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px 20px 26px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.res-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;
  background:var(--elec);opacity:0;transition:opacity .22s ease;
}
.res-item:hover{transform:translateY(-4px);border-color:var(--elec-line);box-shadow:var(--shadow);}
.res-item:hover::before{opacity:1;}
.res-ico{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:20px;
  color:var(--elec);background:var(--elec-soft);border:1px solid var(--elec-line);
}
.res-body h4{font-size:17px;font-weight:600;margin-bottom:6px;}
.res-body p{font-size:14px;color:var(--text-2);line-height:1.7;}
.res-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;}
.tag{
  display:inline-flex;align-items:center;font-size:12px;line-height:1;
  padding:6px 11px;border-radius:999px;border:1px solid var(--line);color:var(--text-2);
}
.tag-elec{border-color:var(--elec-line);color:var(--elec);background:var(--elec-soft);}
.tag-neon{border-color:rgba(139,92,246,.5);color:#C4B5FD;background:var(--neon-soft);}
.res-action{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
.res-action .size{font-family:var(--mono);font-size:12px;color:var(--text-3);}

/* 筛选栏 */
.filter-card{
  position:sticky;top:92px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
}
.filter-card h3{font-size:17px;margin-bottom:6px;}
.filter-card .hint{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.filter-block{padding-top:18px;margin-top:18px;border-top:1px solid var(--line);}
.filter-block:first-of-type{border-top:0;padding-top:0;margin-top:0;}
.filter-block .ft{font-size:13px;color:var(--text-3);letter-spacing:.6px;margin-bottom:12px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;font-size:13px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;padding:6px 13px;cursor:pointer;
  background:transparent;transition:all .22s ease;
}
.chip:hover{border-color:var(--elec-line);color:var(--text);}
.chip.on{background:var(--elec-soft);border-color:var(--elec-line);color:var(--elec);}
.filter-search{position:relative;}
.filter-search input{
  width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text);font-size:14px;padding:11px 14px 11px 38px;
}
.filter-search input::placeholder{color:var(--text-3);}
.filter-search input:focus{outline:none;border-color:var(--elec);}
.filter-search i{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:13px;}
.filter-note{
  margin-top:20px;padding:16px;border-radius:12px;background:var(--panel-2);
  border:1px solid var(--line);font-size:13px;color:var(--text-2);line-height:1.7;
}
.filter-note strong{color:var(--elec);font-weight:600;}

/* ============ 适配参数 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.spec-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:transform .22s ease,border-color .22s ease;
}
.spec-card:hover{transform:translateY(-4px);border-color:var(--elec-line);}
.spec-card .sp-ico{font-size:20px;color:var(--neon);margin-bottom:14px;}
.spec-card h3{font-size:16px;margin-bottom:10px;}
.spec-card p{font-size:14px;color:var(--text-2);}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;}
.split-media{position:relative;}
.split-media img{border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media .badge-float{
  position:absolute;left:-14px;top:24px;
  background:var(--panel);border:1px solid var(--elec-line);border-radius:12px;
  padding:12px 16px;font-size:13px;color:var(--elec);box-shadow:var(--shadow);
}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:14px;color:var(--text-2);font-size:15px;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:6px;
  display:grid;place-items:center;background:var(--elec-soft);color:var(--elec);
}
.check-list li strong{color:var(--text);font-weight:600;}

/* ============ 安装流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative;}
.flow::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;height:1px;
  border-top:1px dashed rgba(0,227,194,.35);
}
.flow-step{position:relative;padding:0 18px;text-align:center;}
.flow-step .dot{
  width:52px;height:52px;margin:0 auto 20px;border-radius:16px;display:grid;place-items:center;
  font-family:var(--mono);font-weight:700;font-size:16px;color:var(--elec);
  background:var(--panel-2);border:1px solid var(--elec-line);position:relative;z-index:2;
}
.flow-step h3{font-size:17px;margin-bottom:10px;}
.flow-step p{font-size:14px;color:var(--text-2);}
.flow-step .ico{font-size:16px;color:var(--neon);display:block;margin-bottom:10px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.accordion-item{
  background:var(--panel);border:1px solid var(--line) !important;border-radius:var(--r-card) !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none !important;border-radius:var(--r-card) !important;
}
.accordion-button:not(.collapsed){background:var(--panel-2);color:var(--elec);}
.accordion-button::after{filter:invert(78%) sepia(38%) saturate(640%) hue-rotate(120deg);}
.accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.8;background:var(--panel-2);}
.faq-item-open{position:relative;}
.faq-item-open::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--elec);
}
.ask-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
}
.ask-card h3{font-size:18px;margin-bottom:12px;}
.ask-card p{font-size:14px;color:var(--text-2);margin-bottom:18px;}
.ask-card .line{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:10px;}
.ask-card .line i{color:var(--elec);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--panel);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(0,227,194,.055) 0 2px,transparent 2px 14px);
}
.cta-inner{position:relative;z-index:2;padding:72px 0;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;margin-bottom:12px;}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:620px;}
.cta-tip{font-size:13px;color:var(--text-3);margin-top:10px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--foot);border-top:1px solid var(--line);padding-top:64px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px;line-height:1.8;}
.foot-brand .brand{margin-bottom:0;}
.foot-title{font-size:14px;color:var(--text);font-weight:600;margin-bottom:18px;letter-spacing:.4px;}
.foot-links li{margin-bottom:12px;}
.foot-links a{font-size:14px;color:var(--text-2);}
.foot-links a:hover{color:var(--elec);}
.foot-contact li{font-size:14px;color:var(--text-2);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start;}
.foot-contact i{color:var(--elec);margin-top:4px;}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 26px;font-size:13px;color:var(--text-3);font-family:var(--mono);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .cat-hero h1{font-size:34px;}
  .layout-8-4{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:24px;}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec-pad:72px;}
  .nav-collapse{
    position:absolute;left:0;right:0;top:68px;background:var(--panel);
    border-bottom:1px solid var(--line);padding:18px 24px 24px;max-height:calc(100vh - 68px);overflow-y:auto;
  }
  .nav-collapse.show{display:block;}
  .nav-list{flex-direction:column;align-items:flex-start;gap:0;}
  .nav-list li{width:100%;border-bottom:1px solid var(--line);}
  .nav-list a{display:block;padding:14px 0;font-size:16px;}
  .nav-list a::after{display:none;}
  .nav-list a.active{color:var(--elec);}
  .nav-mobile-extra{display:block;margin-top:20px;}
  .nav-mobile-extra .btn-accent{width:100%;}
  .nav-mobile-group{margin-top:22px;}
  .nav-mobile-group .mega-title{margin-bottom:10px;}
  .nav-mobile-group a{display:block;padding:10px 0;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
  .layout-8-4{grid-template-columns:minmax(0,1fr);}
  .filter-card{position:static;order:-1;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px;}
  .flow::before{display:none;}
  .faq-layout{grid-template-columns:minmax(0,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:56px 0;}
}
@media (max-width:767.98px){
  :root{--sec-pad:56px;}
  body{font-size:16px;}
  .section{padding:56px 0;}
  .cat-hero{padding:48px 0 56px;}
  .cat-hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-elec,.hero-actions .btn-ghost{flex:1 1 100%;}
  .hero-stats{gap:24px;}
  .hero-stats .num{font-size:22px;}
  .sec-head h2{font-size:22px;}
  .split{grid-template-columns:minmax(0,1fr);}
  .split-media{order:-1;}
  .split-media .badge-float{left:12px;top:12px;font-size:12px;padding:9px 13px;}
  .res-item{grid-template-columns:44px minmax(0,1fr);padding:18px;}
  .res-action{grid-column:1 / -1;align-items:stretch;flex-direction:row;justify-content:space-between;}
  .res-action .btn-ghost{flex:1;justify-content:center;}
  .flow{grid-template-columns:minmax(0,1fr);row-gap:28px;text-align:left;}
  .flow-step{padding-left:44px;text-align:left;}
  .flow-step .dot{position:absolute;left:0;top:0;margin:0;width:34px;height:34px;border-radius:11px;font-size:13px;}
  .cta-inner h2{font-size:22px;}
  .cta-inner .btn-accent{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .container{padding:0 16px;}
  .brand-text em{display:none;}
  .cat-hero h1{font-size:24px;}
  .spec-grid{grid-template-columns:minmax(0,1fr);}
  .foot-grid{grid-template-columns:minmax(0,1fr);}
  .mega-panel{width:min(92vw,340px);grid-template-columns:1fr;padding:18px;}
  .intro-card{padding:20px;}
}

/* roulang page: category2 */
:root{
  --brand:#00E3C2;
  --brand-2:#8B5CF6;
  --accent:#FF6A3D;
  --bg:#12101C;
  --panel:#1A1729;
  --panel-2:#221E33;
  --text:#F2F0FA;
  --muted:#A9A3C2;
  --weak:#6F6989;
  --line:rgba(255,255,255,.08);
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand)}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-x:hover{transform:translateY(-2px)}
.btn-brand{background:var(--brand);color:#0B1018}
.btn-brand:hover{background:#3DF0D6;color:#0B1018}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:rgba(0,227,194,.65);color:var(--brand);background:rgba(0,227,194,.06)}
.btn-accent{background:var(--accent);color:#180C06}
.btn-accent:hover{filter:brightness(1.08);color:#180C06}
.btn-sm-x{padding:9px 16px;font-size:14px}

/* ---------- 徽章 ---------- */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid rgba(0,227,194,.42);color:var(--brand);background:rgba(0,227,194,.07);
}
.badge-purple{border-color:rgba(139,92,246,.5);color:#BFA8FF;background:rgba(139,92,246,.12)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#12101C;border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#0B1018;
  font-weight:800;font-size:16px;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--text)}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--weak)}
.nav-collapse{align-items:center;gap:8px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list a{
  position:relative;display:block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--muted);
}
.nav-list a::after{
  content:'';position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.045)}
.nav-list a.active{color:var(--brand)}
.nav-list a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-burger{
  width:42px;height:42px;border-radius:10px;background:transparent;
  border:1px solid var(--line);color:var(--text);font-size:17px;
}
.nav-mobile-extra{display:none}
/* Mega 面板 */
.mega{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;font-size:14.5px;font-weight:600;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--text);
  transition:border-color .22s ease,color .22s ease;
}
.mega-btn:hover{border-color:rgba(0,227,194,.6);color:var(--brand)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:520px;padding:22px;
  display:grid;grid-template-columns:1fr 1fr;gap:22px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--weak);margin-bottom:12px}
.mega-links li{margin-bottom:2px}
.mega-links a{display:block;padding:8px 10px;border-radius:10px;font-size:14.5px;color:var(--muted)}
.mega-links a:hover{background:var(--panel-2);color:var(--brand)}
.mega-post{display:block;padding:12px;border-radius:12px;border:1px solid var(--line);margin-bottom:10px;transition:border-color .22s ease,transform .22s ease}
.mega-post:hover{border-color:rgba(0,227,194,.4);transform:translateY(-2px);color:var(--text)}
.mega-post span:first-child{display:block;font-size:14px;color:var(--text);margin-bottom:6px}
.mega-post span:last-child{font-size:12px;color:var(--weak)}

/* ---------- 页首横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:76px 0 62px;
  background:#15121F url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,9,19,.95) 0%,rgba(11,9,19,.88) 46%,rgba(11,9,19,.66) 100%);
}
.page-hero::after{
  content:'';position:absolute;inset:0;opacity:.45;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 52px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 52px);
}
.hero-slash{
  position:absolute;right:-70px;top:-46px;width:290px;height:230px;
  background:linear-gradient(135deg,rgba(0,227,194,.26),rgba(139,92,246,.2));
  transform:skewX(-18deg);border-radius:22px;
}
.hero-inner{position:relative;z-index:2;max-width:790px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px}
.hero-inner h1{
  font-size:40px;line-height:1.32;font-weight:800;letter-spacing:-.5px;margin:14px 0 16px;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stat strong{display:block;font-size:26px;font-weight:800;color:var(--brand);letter-spacing:-.5px}
.hero-stat span{font-size:13.5px;color:var(--weak)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.sec-title{position:relative;padding-left:18px;font-size:28px;font-weight:700;line-height:1.4;letter-spacing:-.3px}
.sec-title::before{
  content:'';position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.sec-desc{margin-top:14px;color:var(--muted);font-size:15.5px}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--brand);margin-bottom:12px}

/* ---------- 评分卡（速览） ---------- */
.fact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.fact-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 22px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.fact-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);box-shadow:var(--shadow)}
.fact-icon{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(139,92,246,.16);color:#BFA8FF;font-size:16px;margin-bottom:16px;
}
.fact-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.fact-card p{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 步骤流 ---------- */
.step-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;
}
.step-row + .step-row{margin-top:72px}
.step-row:nth-child(odd){padding-right:24px}
.step-row:nth-child(even){padding-left:24px}
.step-row:nth-child(even) .step-media{order:2}
.step-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.step-media img{width:100%;height:300px;object-fit:cover;transition:transform .3s ease}
.step-media:hover img{transform:scale(1.03)}
.step-badge{
  position:absolute;left:14px;top:14px;padding:6px 12px;border-radius:999px;
  background:rgba(11,9,19,.78);border:1px solid rgba(0,227,194,.45);
  font-size:12.5px;font-weight:700;color:var(--brand);
}
.step-body{padding:6px 0}
.step-num{
  font-size:34px;font-weight:800;color:var(--brand);letter-spacing:-1px;line-height:1;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:14px;line-height:1.5}
.point-list li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15px;color:var(--muted)}
.point-list li::before{
  content:'';position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--brand);
}
.point-list li strong{color:var(--text);font-weight:600}

/* ---------- 投入节奏 ---------- */
.pace-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.pace-list li{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
}
.pace-list li:last-child{border-bottom:0}
.pace-idx{
  flex:none;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--panel-2);border:1px solid var(--line);color:var(--brand);font-weight:700;font-size:14px;
}
.pace-list h3{font-size:17px;font-weight:600;margin-bottom:6px}
.pace-list p{font-size:14.5px;color:var(--muted)}
.pace-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.pace-figure img{width:100%;height:360px;object-fit:cover}

/* ---------- 分配要点（数据卡） ---------- */
.alloc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.alloc-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  transition:transform .24s ease,border-color .24s ease;
}
.alloc-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.35)}
.alloc-card h3{font-size:18px;font-weight:600;margin-bottom:20px}
.bar-item{margin-bottom:18px}
.bar-item:last-child{margin-bottom:0}
.bar-top{display:flex;justify-content:space-between;font-size:14px;color:var(--muted);margin-bottom:8px}
.bar-top b{color:var(--text);font-weight:600}
.bar-track{height:6px;border-radius:999px;background:var(--panel-2);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.w-40{width:40%}.w-35{width:35%}.w-25{width:25%}
.w-70{width:70%}.w-55{width:55%}.w-45{width:45%}
.w-60{width:60%}.w-30{width:30%}.w-20{width:20%}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1.55fr .95fr;gap:32px;align-items:start}
.faq-acc .accordion-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--panel-2);color:var(--brand);box-shadow:inset 3px 0 0 var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand)}
.faq-acc .accordion-button::after{filter:brightness(0) invert(1);opacity:.65}
.faq-acc .accordion-body{padding:16px 20px 20px;color:var(--muted);font-size:14.8px;line-height:1.8}
.ask-card{
  background:linear-gradient(160deg,var(--panel-2),var(--panel));
  border:1px solid rgba(139,92,246,.32);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--shadow);
}
.ask-card h3{font-size:18px;font-weight:600;margin-bottom:12px}
.ask-card p{font-size:14.5px;color:var(--muted);margin-bottom:20px}
.ask-card ul{margin-bottom:22px}
.ask-card li{font-size:14px;color:var(--muted);padding-left:18px;position:relative;margin-bottom:8px}
.ask-card li::before{content:'';position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:72px 0;
  background:#0D0B16;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:'';position:absolute;inset:0;opacity:.14;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(0,227,194,.7) 0 2px,transparent 2px 22px);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:27px;font-weight:700;line-height:1.45;max-width:640px}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0D0B16;border-top:1px solid var(--line);padding:66px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--weak);max-width:300px;line-height:1.8}
.foot-title{font-size:13.5px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.foot-links li{margin-bottom:10px}
.foot-links a,.foot-contact li{font-size:14px;color:var(--weak)}
.foot-links a:hover{color:var(--brand)}
.foot-contact li{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.foot-contact i{color:var(--brand)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--weak);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-inner h1{font-size:34px}
  .alloc-grid{gap:18px}
  .mega-panel{width:460px}
}
@media (max-width:991.98px){
  .container{padding:0 20px}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center}
  .nav-collapse{
    position:absolute;left:0;right:0;top:60px;padding:18px 20px 26px;
    background:var(--panel);border-bottom:1px solid var(--line);
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-list a{padding:12px 12px;font-size:15.5px}
  .nav-list a::after{display:none}
  .nav-list a.active{background:rgba(0,227,194,.08)}
  .nav-mobile-extra{display:block;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
  .nav-mobile-extra .btn-x{width:100%;margin-bottom:20px}
  .nav-mobile-group .mega-title{margin-bottom:10px}
  .nav-mobile-group a{display:block;padding:10px 0;font-size:14.5px;color:var(--muted);border-bottom:1px solid var(--line)}
  .nav-mobile-group a:last-child{border-bottom:0}
  .nav-wrap{height:60px}
  .section{padding:68px 0}
  .sec-title{font-size:23px}
  .hero-inner h1{font-size:29px;line-height:1.4}
  .page-hero{padding:52px 0 46px}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:38px}
  .hero-stat strong{font-size:22px}
  .fact-grid{grid-template-columns:repeat(2,1fr)}
  .step-row{grid-template-columns:1fr;gap:24px;padding:0!important}
  .step-row:nth-child(even) .step-media{order:0}
  .step-media img{height:240px}
  .pace-wrap{grid-template-columns:1fr;gap:30px}
  .pace-figure img{height:280px}
  .alloc-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767.98px){
  .cta-inner h2{font-size:23px}
  .section{padding:58px 0}
  .step-row + .step-row{margin-top:48px}
  .alloc-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px}
  .hero-stat:nth-child(3){grid-column:span 2}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .brand-text em{display:none}
  .hero-inner h1{font-size:25px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn-x{width:100%}
  .fact-grid{grid-template-columns:1fr}
  .sec-title{font-size:21px}
  .step-media img{height:200px}
  .pace-figure img{height:220px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
  --bg:#12101C;
  --panel:#1A1729;
  --panel-2:#221E33;
  --panel-3:#0D0B16;
  --brand:#00E3C2;
  --violet:#8B5CF6;
  --accent:#FF6A3D;
  --text:#F2F0FA;
  --muted:#A9A3C2;
  --weak:#6F6989;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --container:1200px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);letter-spacing:.02em}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:transform .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-cyan{background:var(--brand);border-color:var(--brand);color:#06110F}
.btn-cyan:hover{background:#2BF0D3;border-color:#2BF0D3;color:#06110F;transform:translateY(-2px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#1B0B04}
.btn-accent:hover{background:#FF8158;border-color:#FF8158;color:#1B0B04;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(0,227,194,.06);transform:translateY(-2px)}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line-strong);border-radius:999px;
  padding:3px 12px;font-size:13px;color:var(--muted);background:transparent;
}
.tag-cyan{border-color:rgba(0,227,194,.45);color:var(--brand)}
.tag-violet{border-color:rgba(139,92,246,.5);color:#C4B5FD}
.tag-orange{border-color:rgba(255,106,61,.5);color:#FF9B79}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(13,11,22,.97);
  border-bottom:1px solid var(--line);
}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  color:#0B0A12;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:17px;font-weight:700;white-space:nowrap}
.brand-text em{font-style:normal;font-size:12px;color:var(--weak);white-space:nowrap}
.nav-burger{
  width:42px;height:42px;border-radius:10px;background:transparent;
  border:1px solid var(--line-strong);color:var(--text);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-burger:hover{border-color:var(--brand);color:var(--brand)}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list a{position:relative;display:block;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted)}
.nav-list a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-list a.active{color:var(--text);font-weight:600}
.nav-list a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:12px}
.mega{position:relative}
.mega-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid var(--line-strong);color:var(--muted);
  padding:9px 14px;border-radius:10px;font-size:14px;transition:.22s ease;
}
.mega-btn:hover{border-color:var(--brand);color:var(--brand)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:580px;padding:24px;
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,border-color .24s ease;
  z-index:60;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);border-color:rgba(0,227,194,.35)}
.mega-title{font-size:13px;color:var(--weak);letter-spacing:.08em;margin-bottom:12px}
.mega-links li+li{margin-top:8px}
.mega-links a{font-size:15px;color:var(--muted);display:block;padding:6px 0;border-bottom:1px solid transparent}
.mega-links a:hover{color:var(--brand)}
.mega-post{
  display:flex;flex-direction:column;gap:4px;
  padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  transition:.22s ease;margin-bottom:8px;
}
.mega-post:hover{border-color:rgba(0,227,194,.4);transform:translateY(-2px)}
.mega-post span:first-child{font-size:14px;color:var(--text);line-height:1.55}
.mega-post .mono{font-size:12px;color:var(--weak)}
.nav-mobile-extra{display:none}
.nav-mobile-group{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.nav-mobile-group a{display:block;padding:8px 0;color:var(--muted);font-size:15px}

@media (min-width:992px){
  .nav-collapse{display:flex !important;align-items:center;gap:20px;flex:1;justify-content:flex-end}
  .nav-mobile-extra{display:none !important}
}
@media (max-width:991.98px){
  .nav-wrap{height:60px}
  .nav-collapse{
    position:absolute;left:0;right:0;top:100%;
    background:#12101C;border-bottom:1px solid var(--line);
    padding:16px 20px 26px;max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-list a{padding:12px 10px;font-size:16px}
  .nav-list a.active::after{left:10px;right:auto;width:22px;bottom:8px}
  .nav-mobile-extra{display:block;margin-top:16px}
  .nav-mobile-extra .btn{width:100%}
  .brand-text strong{font-size:16px}
  .brand-text em{display:none}
}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:72px 0 72px;
  background:var(--panel-3) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(13,11,22,.97) 0%,rgba(13,11,22,.88) 48%,rgba(18,16,28,.72) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:44px 44px;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:22px}
.crumb a{color:var(--weak)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px}
.hero-tagline{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.page-hero h1{font-size:40px;font-weight:800;letter-spacing:.01em;max-width:820px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:700px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.metric{
  display:flex;flex-direction:column;gap:2px;
  min-width:168px;padding:14px 18px;
  background:rgba(26,23,41,.82);border:1px solid var(--line);border-radius:12px;
}
.metric b{font-size:19px;font-weight:700;color:var(--brand);font-family:var(--mono)}
.metric span{font-size:13px;color:var(--muted)}

/* ============ 板块通用 ============ */
.sec{padding:96px 0}
.sec-alt{background:var(--panel-3);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-title{position:relative;padding-left:16px;font-size:28px;font-weight:700}
.sec-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--violet));
}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:660px}

/* ============ 公告类型卡 ============ */
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.type-card{
  position:relative;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.type-card::after{
  content:"";position:absolute;right:-34px;top:-34px;width:76px;height:76px;
  background:linear-gradient(135deg,rgba(0,227,194,.18),rgba(139,92,246,.14));
  transform:rotate(45deg);
}
.type-card:hover{transform:translateY(-4px);border-color:rgba(0,227,194,.4);box-shadow:var(--shadow)}
.type-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(139,92,246,.14);border:1px solid rgba(139,92,246,.35);color:var(--brand);font-size:17px;
  margin-bottom:16px;
}
.type-card h3{font-size:18px;margin-bottom:10px}
.type-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ============ 时间线 ============ */
.timeline{margin-top:8px}
.tl-item{display:grid;grid-template-columns:150px 1fr;gap:26px}
.tl-time{
  font-family:var(--mono);font-size:14px;color:var(--brand);
  text-align:right;padding-top:14px;white-space:nowrap;
}
.tl-body{
  position:relative;padding:0 0 34px 28px;border-left:1px solid var(--line);
}
.tl-item:last-child .tl-body{padding-bottom:6px}
.tl-body::before{
  content:"";position:absolute;left:-6px;top:18px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
}
.tl-card{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(0,227,194,.4);box-shadow:var(--shadow)}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{font-size:15px;color:var(--muted)}
.tl-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);margin-top:14px}
.tl-link:hover{color:#2BF0D3}

/* ============ 图文说明区 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;height:auto;border-radius:var(--r-img);border:1px solid var(--line)}
.split-media::before{
  content:"";position:absolute;left:-14px;top:-14px;width:88px;height:88px;border-radius:14px;
  background:linear-gradient(135deg,rgba(0,227,194,.24),rgba(139,92,246,.1));
}
.split-body{position:relative;z-index:2}
.step-row{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.step-row:last-child{border-bottom:0}
.step-no{
  font-family:var(--mono);font-size:15px;color:var(--brand);
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,227,194,.08);border:1px solid rgba(0,227,194,.28);
}
.step-row h3{font-size:18px;margin-bottom:6px}
.step-row p{font-size:14px;color:var(--muted)}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:12px}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--violet))}
.bar-row{display:flex;justify-content:space-between;font-size:12px;color:var(--weak);margin-top:8px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr 1fr 340px;gap:22px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:background .24s ease,border-color .24s ease;
}
.faq-item[open]{background:var(--panel-2);border-color:rgba(0,227,194,.3)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:17px 20px 17px 17px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;color:var(--brand);font-size:19px;line-height:1.2;font-weight:400}
.faq-item[open] summary{border-left:3px solid var(--brand);padding-left:14px}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 20px 20px;font-size:14.5px;color:var(--muted)}
.faq-side{
  background:linear-gradient(160deg,rgba(139,92,246,.14),rgba(0,227,194,.08));
  border:1px solid rgba(139,92,246,.3);border-radius:var(--r-card);
  padding:26px 22px;
}
.faq-side h3{font-size:19px;margin-bottom:12px}
.faq-side p{font-size:14px;color:var(--muted)}
.faq-side .btn{margin-top:20px}
.faq-side ul{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.faq-side li{font-size:13px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.faq-side li i{color:var(--brand);font-size:12px;margin-top:6px}

/* ============ CTA ============ */
.cta-band{
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:52px 40px;text-align:center;
  background:repeating-linear-gradient(135deg,#1A1729 0 12px,#171423 12px 24px);
}
.cta-band h2{font-size:28px}
.cta-band p{margin-top:14px;color:var(--muted);font-size:15px;max-width:620px;margin-left:auto;margin-right:auto}
.cta-actions{margin-top:28px;display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:16px;font-size:13px;color:var(--weak)}

/* ============ 页脚 ============ */
.site-footer{background:var(--panel-3);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand p{margin-top:18px;font-size:14px;color:var(--muted);max-width:320px}
.foot-title{font-size:14px;color:var(--weak);letter-spacing:.06em;margin-bottom:16px}
.foot-links li+li{margin-top:10px}
.foot-links a{font-size:14.5px;color:var(--muted)}
.foot-links a:hover{color:var(--brand)}
.foot-contact li{font-size:14px;color:var(--muted);display:flex;gap:10px;align-items:flex-start}
.foot-contact li+li{margin-top:12px}
.foot-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--weak);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:34px}
  .sec{padding:80px 0}
  .faq-layout{grid-template-columns:1fr 1fr 300px}
}
@media (max-width:991.98px){
  .type-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:34px}
  .split-media{order:-1}
  .faq-layout{grid-template-columns:1fr;gap:20px}
  .faq-col{gap:12px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .sec{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{padding:40px 24px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding:0 18px}
  .page-hero{padding:52px 0 56px}
  .page-hero h1{font-size:27px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 auto}
  .metric{flex:1 1 100%;min-width:0}
  .sec-title{font-size:22px}
  .sec{padding:56px 0}
  .tl-item{grid-template-columns:1fr;gap:8px}
  .tl-time{text-align:left;padding-top:0}
  .tl-body{padding-left:22px}
  .tl-body::before{left:-6px}
  .tl-card{padding:18px}
  .tl-card h3{font-size:17px}
  .cta-band h2{font-size:22px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .type-grid{grid-template-columns:1fr}
  .hero-tagline .tag{font-size:12px}
  .btn{padding:11px 18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .step-row{grid-template-columns:38px 1fr;gap:14px}
  .step-no{width:38px;height:38px;border-radius:10px}
}