/* roulang page: index */
:root{
  --bg-0:#05070D;
  --bg-1:#0A0F1A;
  --bg-2:#0E1524;
  --brand:#17E0B2;
  --brand-deep:#12C79A;
  --brand-2:#4C7DFF;
  --accent:#FFB020;
  --text-1:#E9F1FF;
  --text-2:#9FB0C9;
  --text-3:#64748B;
  --line:rgba(140,190,255,.12);
  --glass-bg:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --glass-border:1px solid rgba(255,255,255,.08);
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8);
  --r-card:18px;
  --r-input:12px;
  --r-tag:10px;
  --font: "PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(920px 640px at 78% 22%, rgba(23,224,178,.14), transparent 64%),
    linear-gradient(rgba(140,190,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,255,.05) 1px, transparent 1px);
  background-size:auto,32px 32px,32px 32px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{padding-left:40px;padding-right:40px}}

/* ---------- 通用组件 ---------- */
.glass{
  background:var(--glass-bg);
  border:var(--glass-border);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.card{
  background:var(--glass-bg);
  border:var(--glass-border);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(23,224,178,.34);box-shadow:0 26px 52px -26px rgba(0,0,0,.9)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-input);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04160F;
  box-shadow:0 8px 28px -6px rgba(23,224,178,.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 36px -6px rgba(23,224,178,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px -10px rgba(23,224,178,.6)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:42px;font-size:15px;padding:0 18px}
.link-more{color:var(--brand);font-size:15px;font-weight:600;border-bottom:1px solid rgba(23,224,178,.4);padding-bottom:2px;text-underline-offset:4px;transition:color .2s ease,border-color .2s ease}
.link-more:hover{color:#7CF7DC;border-color:#7CF7DC}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:7px 12px;border-radius:999px;
  color:var(--brand);background:rgba(23,224,178,.08);
  border:1px solid rgba(23,224,178,.35);
}
.pill-num{color:var(--accent);border-color:rgba(255,176,32,.4);background:rgba(255,176,32,.1)}
.tag{
  display:inline-block;font-size:13px;color:var(--text-2);
  padding:5px 10px;border-radius:var(--r-tag);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.icon-badge{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,rgba(23,224,178,.18),rgba(76,125,255,.14));
  border:1px solid rgba(23,224,178,.28);color:var(--brand);font-size:20px;flex:0 0 auto;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.sec-title{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.015em}
.sec-sub{color:var(--text-2);font-size:16px;margin-top:12px;max-width:640px}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:76px 0}}
@media (min-width:1024px){.section{padding:100px 0}}
.row{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
[class*="col-"]{grid-column:span 12}
@media (min-width:640px){
  .col-4{grid-column:span 6}
  .col-6{grid-column:span 12}
}
@media (min-width:1024px){
  .col-4{grid-column:span 4}
  .col-5{grid-column:span 5}
  .col-6{grid-column:span 6}
  .col-7{grid-column:span 7}
  .col-8{grid-column:span 8}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(23,224,178,.8)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,16,.78);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));
  position:relative;box-shadow:0 8px 22px -10px rgba(23,224,178,.9);
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:5px;
  background:rgba(5,7,13,.86);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:18px;font-weight:700;letter-spacing:-.01em}
.logo-sub{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav-links{display:none;align-items:center;gap:32px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;opacity:0;transition:transform .24s ease,opacity .24s ease;
}
.nav-link::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:0;transition:opacity .24s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1);opacity:.55}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1);opacity:1}
.nav-link.active::before{opacity:1}
.nav-actions{display:none;align-items:center;gap:12px}
@media (min-width:1024px){.nav-actions{display:flex}}
.burger{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:46px;height:46px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);cursor:pointer;align-items:center;
}
@media (min-width:1024px){.burger{display:none}}
.burger span{display:block;width:18px;height:1px;background:var(--text-1)}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(5,7,13,.94);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .32s ease,opacity .32s ease;
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-inner{display:flex;flex-direction:column;height:100%;padding:20px}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--text-1);font-size:20px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:18px}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand)}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- Hero ---------- */
.hero{padding-top:44px;padding-bottom:56px}
@media (min-width:1024px){.hero{padding-top:72px;padding-bottom:96px}}
.hero-title{
  font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;
}
.hero-lead{color:var(--text-2);font-size:17px;margin-top:20px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px;max-width:560px}
.stat-num{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-label{font-size:13px;color:var(--text-3);margin-top:2px}
.hero-media{position:relative;border-radius:20px;overflow:hidden;border:var(--glass-border);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,transparent,rgba(5,7,13,.92));
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:14px;
  background:rgba(10,15,26,.72);border:var(--glass-border);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  font-size:13px;color:var(--text-2);
}
.hero-chip b{color:var(--text-1);font-weight:600;font-size:14px}

/* ---------- 价值主张 ---------- */
.gap-grid{display:grid;gap:24px}
@media (min-width:1024px){.gap-grid{grid-template-columns:5fr 7fr}}
.mini-grid{display:grid;gap:24px}
@media (min-width:640px){.mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.mini-grid .mini-wide{grid-column:span 2}}
.card h3{font-size:19px;font-weight:600;letter-spacing:-.01em}
.card p{color:var(--text-2);font-size:15.5px;margin-top:12px}
.card-link{display:inline-block;margin-top:18px;font-size:15px;font-weight:600;color:var(--brand)}
.card-link:hover{color:#7CF7DC}

/* ---------- 功能分组 ---------- */
.sticky-col{position:sticky;top:104px;align-self:start}
.func-grid{display:grid;gap:24px}
@media (min-width:640px){.func-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.func-card h3{font-size:18px;font-weight:600;margin-top:18px}
.func-card p{font-size:15px;color:var(--text-2);margin-top:10px}

/* ---------- 时间线 ---------- */
.timeline{display:grid;gap:26px;counter-reset:step}
@media (min-width:768px){.timeline{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.step{position:relative;padding-top:26px;border-top:1px solid var(--line)}
.step-idx{
  font-variant-numeric:tabular-nums;font-size:20px;font-weight:700;color:var(--brand);
  letter-spacing:.02em;
}
.step h3{font-size:18px;font-weight:600;margin-top:10px}
.step p{font-size:14.5px;color:var(--text-2);margin-top:8px}
.timeline-figure{margin-top:40px;border-radius:18px;overflow:hidden;border:var(--glass-border);box-shadow:var(--shadow-card)}
.timeline-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.timeline-figure figcaption{font-size:13px;color:var(--text-3);padding:12px 18px;background:rgba(5,7,13,.6)}

/* ---------- 案例 ---------- */
.case-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
.metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:24px}
.metric-num{font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.metric-label{font-size:13px;color:var(--text-3);margin-top:2px}
.quote-card{position:relative}
.quote-card::before{
  content:"“";position:absolute;top:6px;right:20px;font-size:56px;line-height:1;
  color:rgba(23,224,178,.22);font-family:Georgia,serif;
}
.quote-card p{color:var(--text-1);font-size:15.5px;margin-top:0}
.quote-src{margin-top:16px;font-size:13px;color:var(--text-3)}

/* ---------- 价格 ---------- */
.plan-grid{display:grid;gap:24px}
@media (min-width:1024px){.plan-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}}
.plan{display:flex;flex-direction:column;position:relative}
.plan h3{font-size:19px;font-weight:600}
.plan-price{display:flex;align-items:baseline;gap:4px;margin-top:16px;font-variant-numeric:tabular-nums}
.plan-price .cur{font-size:18px;color:var(--text-2)}
.plan-price .val{font-size:32px;font-weight:700;letter-spacing:-.02em}
.plan-price .unit{font-size:14px;color:var(--text-3)}
.plan-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.plan-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.6}
.plan-list li::before{
  content:"✓";color:var(--brand);font-size:14px;font-weight:700;flex:0 0 auto;line-height:1.6;
}
.plan-btn{margin-top:26px;width:100%}
.plan-featured{border-color:rgba(23,224,178,.45);box-shadow:0 26px 60px -30px rgba(23,224,178,.5)}
@media (min-width:1024px){.plan-featured{transform:translateY(-12px)}}
.plan-flag{
  position:absolute;top:-13px;left:26px;
  font-size:12px;padding:6px 12px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#04160F;font-weight:700;
}

/* ---------- 资讯 ---------- */
.news-hero{display:grid;gap:0;overflow:hidden;padding:0}
@media (min-width:768px){.news-hero{grid-template-columns:1fr 1fr}}
.news-hero-media{overflow:hidden;border-radius:18px 18px 0 0}
@media (min-width:768px){.news-hero-media{border-radius:18px 0 0 18px}}
.news-hero-media img{width:100%;height:100%;min-height:220px;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.news-hero:hover .news-hero-media img{transform:scale(1.04)}
.news-hero-body{padding:26px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.news-hero-body h3{font-size:21px;font-weight:600;line-height:1.45}
.news-hero-body p{font-size:15px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list{margin-top:24px;display:flex;flex-direction:column;gap:16px}
.news-item{display:flex;gap:18px;padding:16px;align-items:center}
.news-thumb{width:120px;height:80px;flex:0 0 auto;border-radius:12px;overflow:hidden;border:var(--glass-border)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-item:hover .news-thumb img{transform:scale(1.06)}
.news-item-body{min-width:0;flex:1}
.news-item-title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-item:hover .news-item-title{color:var(--brand)}
.news-item-sum{
  font-size:14px;color:var(--text-2);margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.empty-state{
  text-align:center;padding:52px 24px;border-radius:var(--r-card);
  border:1px dashed var(--line);background:rgba(255,255,255,.02);
}
.empty-icon{font-size:40px;line-height:1;color:var(--text-3);margin-bottom:14px}
.empty-main{font-size:15px;color:var(--text-1)}
.empty-sub{font-size:13px;color:var(--text-3);margin-top:8px}
.empty-state .btn{margin-top:22px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;background:transparent;border:0;color:var(--text-1);
  font-size:17px;font-weight:600;text-align:left;cursor:pointer;transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .28s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .28s ease}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 0 24px;color:var(--text-2);font-size:15.5px;max-width:720px}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:22px;padding:44px 32px;text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(23,224,178,.22);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 28px 60px -34px rgba(23,224,178,.5);
}
@media (min-width:768px){.cta-band{padding:56px 48px}}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.015em}
.cta-band p{color:var(--text-2);font-size:16px;margin-top:14px}
.cta-band .btn{margin-top:26px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:rgba(8,11,19,.7)}
.footer-grid{display:grid;gap:32px;padding:56px 0 40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.3fr}}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:16px;max-width:320px}
.footer-anchor{display:inline-block;margin-top:14px;color:var(--brand);font-size:14.5px;font-weight:600}
.footer-anchor:hover{color:#7CF7DC}
.footer-title{font-size:14px;color:var(--text-3);letter-spacing:.06em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:15px;color:var(--text-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand);transform:translateX(4px)}
.footer-qr{
  width:96px;height:96px;border-radius:14px;border:var(--glass-border);
  background:linear-gradient(150deg,rgba(23,224,178,.16),rgba(76,125,255,.1));
  display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:12px;text-align:center;line-height:1.4;
}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0}
.footer-bottom .container{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* roulang page: article */
:root{
  --bg-0:#05070D;
  --bg-1:#0A0F1A;
  --bg-2:#0E1524;
  --brand:#17E0B2;
  --brand-2:#4C7DFF;
  --accent:#FFB020;
  --text-1:#E9F1FF;
  --text-2:#9FB0C9;
  --text-3:#64748B;
  --line:rgba(140,190,255,.12);
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --glass-border:1px solid rgba(255,255,255,.08);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-brand:0 8px 28px -6px rgba(23,224,178,.55);
  --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 560px at 82% -8%, rgba(23,224,178,.14), transparent 62%),
    linear-gradient(180deg,var(--bg-0) 0%, var(--bg-1) 55%, var(--bg-0) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(140,190,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,255,.05) 1px, transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, rgba(0,0,0,.45) 45%, transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, rgba(0,0,0,.45) 45%, transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
input,textarea,select{font:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(23,224,178,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0 40px}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(6,9,16,.72);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:26px;height:26px;border-radius:8px;position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#12C79A);
  box-shadow:0 0 0 1px rgba(23,224,178,.35), 0 6px 18px -8px rgba(23,224,178,.8);
}
.logo-mark::after{
  content:"";position:absolute;inset:7px 7px auto auto;width:8px;height:8px;border-radius:3px;
  background:rgba(5,7,13,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:18px;font-weight:700;letter-spacing:-.01em}
.logo-sub{font-size:12px;color:var(--text-3);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:16px;font-weight:500;color:var(--text-2);padding:6px 0;transition:color .22s ease;
}
.nav-link::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  opacity:0;transform:scale(.4);transition:.22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::before{opacity:1;transform:scale(1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .24s ease,filter .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#12C79A);
  color:#04140F;box-shadow:var(--shadow-brand);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 12px 34px -8px rgba(23,224,178,.72)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px -8px rgba(23,224,178,.6)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:var(--radius-md);border:1px solid var(--line);
}
.burger span{display:block;height:1px;width:20px;margin:0 auto;background:var(--text-1);transition:.22s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1024px){
  .nav-links,.nav-actions{display:none}
  .burger{display:flex}
}
.nav-drawer{
  position:fixed;inset:0;z-index:80;
  display:flex;flex-direction:column;gap:8px;padding:22px 20px 28px;
  background:rgba(5,7,13,.94);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease;
}
.nav-drawer.open{opacity:1;visibility:visible;transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-md);border:1px solid var(--line);
  font-size:20px;line-height:1;color:var(--text-1);
}
.drawer-links{display:flex;flex-direction:column;margin-top:8px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;font-weight:500;color:var(--text-2);
  height:56px;border-bottom:1px solid var(--line);transition:color .2s ease,padding .2s ease;
}
.drawer-links a:hover{color:var(--brand);padding-left:4px}
.drawer-cta{margin-top:auto;width:100%}
body.lock{overflow:hidden}

/* ---------- 通用组件 ---------- */
.glass{
  background:var(--glass);
  border:var(--glass-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:999px;
  border:1px solid rgba(23,224,178,.35);
  color:var(--brand);background:rgba(23,224,178,.08);
}
.badge-amber{
  border-color:rgba(255,176,32,.4);color:var(--accent);background:rgba(255,176,32,.08);
}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.meta-sep{width:1px;height:12px;background:var(--line)}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1280px){.section{padding:104px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.02em}
.lead{font-size:16px;color:var(--text-2)}

/* ---------- 文章头 ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--text-3);padding:28px 0 0;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .crumb-current{color:var(--text-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb-sep{color:var(--text-3);opacity:.6}
.post-shell{max-width:900px;margin:0 auto}
.post-card{padding:32px 22px 40px;margin-top:24px}
@media (min-width:768px){.post-card{padding:48px 44px 56px}}
.post-title{
  font-size:clamp(26px,4vw,40px);line-height:1.3;font-weight:800;letter-spacing:-.02em;
  margin:16px 0 18px;
}
.post-head{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:28px}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}

/* ---------- 阅读要点 ---------- */
.keypoints{padding:22px;margin-top:24px}
.keypoints h2{font-size:17px;font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.keypoints ul{list-style:none;display:grid;gap:10px}
.keypoints li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2);line-height:1.8}
.keypoints li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),#12C79A);
}

/* ---------- 正文 ---------- */
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text-1)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:20px 0;color:var(--text-1)}
.article-body h2{
  font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.02em;
  margin:48px 0 16px;padding-top:6px;
}
.article-body h3{font-size:19px;line-height:1.45;font-weight:600;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--text-2)}
.article-body ul,.article-body ol{margin:18px 0;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0;line-height:1.9}
.article-body li::marker{color:var(--brand)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{filter:brightness(1.12)}
.article-body strong{color:#fff;font-weight:600}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;
  border-left:2px solid var(--brand);
  border-radius:0 14px 14px 0;
  background:var(--glass);
  border-top:var(--glass-border);border-right:var(--glass-border);border-bottom:var(--glass-border);
  color:var(--text-2);
}
.article-body img{
  display:block;max-width:100%;margin:26px auto;border-radius:16px;
  border:var(--glass-border);box-shadow:var(--shadow-card);
}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.06);border:var(--glass-border);color:var(--brand);
}
.article-body pre{
  margin:24px 0;padding:18px 20px;overflow-x:auto;border-radius:14px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:var(--glass-border);font-size:14px;line-height:1.75;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--text-1)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:var(--text-2);font-weight:600;background:rgba(255,255,255,.03)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:48px 20px;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state .empty-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(23,224,178,.35);color:var(--brand);background:rgba(23,224,178,.08);font-size:18px;
}
.empty-state .empty-main{font-size:15px;font-weight:600}
.empty-state .empty-sub{font-size:13px;color:var(--text-3)}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  font-size:12px;padding:5px 12px;border-radius:999px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--brand);border-color:rgba(23,224,178,.45);transform:translateY(-1px)}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:768px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.related-card{
  display:block;padding:18px;border-radius:var(--radius-lg);
  background:var(--glass);border:var(--glass-border);box-shadow:var(--shadow-card);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(23,224,178,.4);box-shadow:0 24px 48px -26px rgba(0,0,0,.9)}
.related-card .thumb{
  width:100%;aspect-ratio:16/10;overflow:hidden;border-radius:14px;border:var(--glass-border);
  position:relative;background:var(--bg-2);
}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-card h3{font-size:17px;font-weight:600;line-height:1.5;margin:16px 0 8px;letter-spacing:-.01em;transition:color .2s ease}
.related-card:hover h3{color:var(--brand)}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px}
.related-foot .read{font-size:13px;color:var(--brand)}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:32px 24px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:var(--glass-border);box-shadow:var(--shadow-card);
}
@media (min-width:768px){.cta-band{padding:44px 44px;min-height:180px}}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:700;letter-spacing:-.02em;line-height:1.3}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:56ch}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(5,7,13,0));
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;gap:32px;padding:56px 20px 40px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);padding:64px 32px 44px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;padding:72px 40px 48px}}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;margin:16px 0 14px;max-width:38ch}
.footer-anchor{font-size:14px;color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand);transform:translateX(4px)}
.footer-qr{
  width:118px;height:118px;border-radius:14px;display:grid;place-items:center;text-align:center;
  font-size:13px;color:var(--text-3);line-height:1.6;
  border:1px dashed rgba(140,190,255,.28);background:rgba(255,255,255,.03);
}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding-top:18px;padding-bottom:18px;font-size:13px;color:var(--text-3);
}

/* roulang page: category1 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A0F1A;
  --bg-2:#0E1524;
  --brand:#17E0B2;
  --brand-2:#4C7DFF;
  --accent:#FFB020;
  --text-1:#E9F1FF;
  --text-2:#9FB0C9;
  --text-3:#64748B;
  --line:rgba(140,190,255,.12);
  --glass:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  --glass-border:1px solid rgba(255,255,255,.08);
  --radius-card:18px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-brand:0 8px 28px -6px rgba(23,224,178,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  min-height:100vh;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 560px at 78% 4%, rgba(23,224,178,.13), transparent 62%),
    linear-gradient(rgba(140,190,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,190,255,.045) 1px, transparent 1px);
  background-size:auto,32px 32px,32px 32px;
  background-attachment:fixed;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;letter-spacing:-.015em;line-height:1.25;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
::selection{background:rgba(23,224,178,.28)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:rgba(23,224,178,.28);border-radius:999px;border:2px solid var(--bg-1)}
::-webkit-scrollbar-thumb:hover{background:rgba(23,224,178,.45)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0 40px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,13,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,7,13,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-mark{
  position:relative;width:30px;height:30px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#12C79A);
  box-shadow:0 10px 26px -10px rgba(23,224,178,.8);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border:2px solid rgba(5,7,13,.6);border-radius:4px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-name{font-size:18px;font-weight:700;letter-spacing:-.01em}
.logo-sub{font-size:12px;color:var(--text-3);letter-spacing:.02em}
.nav-links{display:none;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  font-size:16px;font-weight:500;color:var(--text-2);
  padding:24px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(.6)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(23,224,178,.9);
}
.nav-actions{display:none;align-items:center;gap:12px;flex:0 0 auto}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border-radius:12px;border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease;
}
.burger span{display:block;height:1px;background:var(--text-1);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.burger:hover{border-color:rgba(23,224,178,.4);background:rgba(23,224,178,.06)}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-actions{display:flex}
  .burger{display:none}
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(5,7,13,.96);
  backdrop-filter:blur(14px) saturate(140%);
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  display:flex;flex-direction:column;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:72px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);font-size:18px;color:var(--text-2)}
.drawer-nav{padding:12px 0;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 20px;font-size:18px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer-nav a i{color:var(--text-3);font-size:14px}
.drawer-nav a.active{color:var(--brand)}
.drawer-cta{padding:20px;margin-top:auto;border-top:1px solid var(--line)}
.drawer-cta .btn{width:100%;justify-content:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{
  color:#04120E;
  background:linear-gradient(135deg,var(--brand),#12C79A);
  box-shadow:var(--shadow-brand);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 12px 34px -6px rgba(23,224,178,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px -8px rgba(23,224,178,.6)}
.btn-ghost{
  color:var(--text-1);background:transparent;border:1px solid var(--line);
}
.btn-ghost:hover{border-color:rgba(23,224,178,.55);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
@media (max-width:767px){
  .btn{min-height:44px}
  .btn-sm{min-height:44px;padding:0 16px}
}

/* ---------- 通用板块 ---------- */
main{display:block}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1280px){.section{padding:104px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand)}
.h2{font-size:clamp(24px,3.2vw,34px)}
.h3{font-size:19px;font-weight:600}
.lead{color:var(--text-2);font-size:16px;margin-top:14px}
.text-2{color:var(--text-2)}
.text-3{color:var(--text-3)}
.divider{height:1px;background:var(--line);border:0;margin:0}

.card{
  border-radius:var(--radius-card);
  background:var(--glass);
  border:var(--glass-border);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  padding:24px;
}
.card-hover:hover{transform:translateY(-3px);border-color:rgba(23,224,178,.32);box-shadow:0 24px 48px -26px rgba(0,0,0,.9)}
.card:focus-within{outline:2px solid var(--brand);outline-offset:2px}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:7px 12px;border-radius:999px;
  color:var(--brand);background:rgba(23,224,178,.08);
  border:1px solid rgba(23,224,178,.35);
}
.pill-muted{color:var(--text-2);background:rgba(140,190,255,.06);border-color:var(--line)}
.icon-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;font-size:17px;
  color:var(--brand);background:rgba(23,224,178,.09);
  border:1px solid rgba(23,224,178,.25);
}
.icon-badge.blue{color:var(--brand-2);background:rgba(76,125,255,.1);border-color:rgba(76,125,255,.28)}
.icon-badge.amber{color:var(--accent);background:rgba(255,176,32,.1);border-color:rgba(255,176,32,.28)}

.link-underline{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-1);font-weight:600;font-size:14px;
  border-bottom:1px solid rgba(140,190,255,.32);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease,gap .2s ease;
}
.link-underline:hover{color:var(--brand);border-color:var(--brand);gap:10px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);padding-top:28px}
.crumb a{color:var(--text-2);transition:color .2s ease}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px;color:var(--text-3)}
.crumb .current{color:var(--text-3)}

/* ---------- Hero ---------- */
.page-hero{padding:32px 0 0}
.page-hero-grid{display:grid;gap:24px}
@media (min-width:1024px){
  .page-hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:40px}
}
.page-h1{font-size:clamp(28px,4.4vw,46px);line-height:1.18;font-weight:800}
.page-sub{color:var(--text-2);font-size:17px;margin-top:18px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.metric-num{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.metric-label{font-size:13px;color:var(--text-3);margin-top:4px}
.hero-visual{
  position:relative;border-radius:20px;overflow:hidden;
  border:var(--glass-border);box-shadow:var(--shadow-card);
  height:200px;
}
@media (min-width:1024px){.hero-visual{height:320px}}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.15),rgba(5,7,13,.78));
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  background:rgba(10,15,26,.72);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(12px);
  font-size:13px;color:var(--text-1);
}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(23,224,178,.9)}

/* ---------- 时间线步骤 ---------- */
.timeline{position:relative;max-width:880px;margin:0 auto}
.tl-item{position:relative;padding-left:84px;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:27px;top:68px;bottom:6px;width:1px;
  background:linear-gradient(to bottom,rgba(23,224,178,.4),rgba(140,190,255,.06));
}
.tl-item:last-child::before{display:none}
.tl-num{
  position:absolute;left:0;top:0;
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--brand);background:rgba(23,224,178,.09);
  border:1px solid rgba(23,224,178,.32);
  box-shadow:0 12px 26px -18px rgba(23,224,178,.9);
}
.tl-card{padding:22px 24px}
.tl-title{font-size:19px;font-weight:600}
.tl-desc{color:var(--text-2);font-size:15px;margin-top:10px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
@media (max-width:520px){
  .tl-item{padding-left:66px}
  .tl-num{width:46px;height:46px;border-radius:13px;font-size:15px}
  .tl-item::before{left:23px;top:58px}
  .tl-card{padding:18px}
}

/* ---------- 图文区 ---------- */
.split{display:grid;gap:24px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:6fr 6fr;gap:40px}}
.img-frame{
  border-radius:18px;overflow:hidden;border:var(--glass-border);
  box-shadow:var(--shadow-card);position:relative;
}
.img-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.img-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.06),rgba(5,7,13,.42))}

/* ---------- 准备事项卡 ---------- */
.prep-grid{display:grid;gap:20px}
@media (min-width:640px){.prep-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.prep-grid{grid-template-columns:repeat(3,1fr)}}

/* ---------- 键值列表 ---------- */
.kv-list{border-radius:var(--radius-card);background:var(--glass);border:var(--glass-border);backdrop-filter:blur(14px);overflow:hidden}
.kv-row{display:grid;gap:6px;padding:18px 22px;border-bottom:1px solid var(--line)}
.kv-row:last-child{border-bottom:0}
@media (min-width:768px){.kv-row{grid-template-columns:220px 1fr;gap:24px;align-items:start}}
.kv-key{font-size:15px;font-weight:600;color:var(--text-1)}
.kv-val{font-size:15px;color:var(--text-2)}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:16px;padding:18px 20px;border-radius:14px;
  background:rgba(255,176,32,.06);
  border:1px solid rgba(255,176,32,.22);
  border-left:3px solid var(--accent);
}
.notice i{color:var(--accent);font-size:18px;margin-top:3px}
.notice p{font-size:15px;color:var(--text-2)}
.notice strong{color:var(--text-1)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  border-radius:16px;background:var(--glass);border:var(--glass-border);
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease;
}
.faq-item.open{border-color:rgba(23,224,178,.3)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
  min-height:44px;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:12px;
  transition:transform .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand);border-color:rgba(23,224,178,.4)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 22px 22px;color:var(--text-2);font-size:15px}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:20px;padding:34px 26px;
  background:linear-gradient(135deg,rgba(23,224,178,.12),rgba(76,125,255,.08));
  border:1px solid rgba(23,224,178,.24);
  backdrop-filter:blur(14px);
  display:flex;flex-direction:column;gap:22px;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;min-height:180px}
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:var(--text-2);margin-top:12px;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 相关阅读 ---------- */
.read-list{border-radius:var(--radius-card);background:var(--glass);border:var(--glass-border);overflow:hidden}
.read-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;border-bottom:1px solid var(--line);
  color:var(--text-1);font-size:16px;transition:color .2s ease,background .2s ease,padding .2s ease;
  min-height:44px;
}
.read-list a:last-child{border-bottom:0}
.read-list a:hover{color:var(--brand);background:rgba(23,224,178,.04);padding-left:26px}
.read-list a span.meta{font-size:13px;color:var(--text-3);white-space:nowrap}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:24px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,15,26,.6),rgba(5,7,13,.95))}
.footer-grid{display:grid;gap:32px;padding:56px 0 40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px}
.footer-anchor{display:inline-block;margin-top:14px;font-size:14px;color:var(--brand);border-bottom:1px solid rgba(23,224,178,.4);padding-bottom:2px}
.footer-anchor:hover{color:var(--text-1);border-color:var(--text-1)}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand);transform:translateX(4px)}
.footer-qr{
  width:112px;height:112px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:rgba(140,190,255,.05);border:1px dashed rgba(140,190,255,.22);
}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{
  display:flex;flex-direction:column;gap:6px;padding-top:18px;padding-bottom:18px;
  font-size:13px;color:var(--text-3);
}
@media (min-width:768px){
  .footer-bottom .container{flex-direction:row;align-items:center;justify-content:space-between}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A0F1A;
  --bg-2:#0E1524;
  --brand:#17E0B2;
  --brand-2:#4C7DFF;
  --accent:#FFB020;
  --text-1:#E9F1FF;
  --text-2:#9FB0C9;
  --text-3:#64748B;
  --line:rgba(140,190,255,.12);
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --radius:18px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.8);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding-top:72px;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text-1);
  background-color:var(--bg-0);
  background-image:linear-gradient(180deg,#05070D 0%,#080D16 45%,#05070D 100%);
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(140,190,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";position:fixed;z-index:0;pointer-events:none;
  top:-180px;right:-160px;width:760px;height:620px;
  background:radial-gradient(closest-side,rgba(23,224,178,.14),transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{padding:0 40px}}
.site-header,.site-footer,main{position:relative;z-index:2}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;height:72px;
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(5,7,13,.74);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:26px;height:26px;border-radius:9px;position:relative;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 22px -10px rgba(23,224,178,.9);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;background:#04231C;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:18px;font-weight:700;letter-spacing:-.01em}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:none;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:6px 0;font-size:16px;font-weight:500;color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link.active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(23,224,178,.9);
}
.nav-actions{display:none;align-items:center;gap:12px}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;align-items:center;border-radius:12px;
  border:1px solid var(--line);transition:border-color .2s ease;
}
.burger span{display:block;width:20px;height:1px;background:var(--text-1);transition:background .2s}
.burger:hover{border-color:var(--brand)}
.burger:hover span{background:var(--brand)}
@media (min-width:1024px){
  .nav-links,.nav-actions{display:flex}
  .burger{display:none}
}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  display:flex;flex-direction:column;padding:24px 20px 28px;
  background:rgba(5,7,13,.96);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  font-size:20px;color:var(--text-2);line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-links{margin-top:8px}
.drawer-links a{
  display:flex;align-items:center;gap:10px;
  line-height:56px;font-size:18px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color .2s ease,padding-left .2s ease;
}
.drawer-links a:hover{color:var(--brand);padding-left:4px}
.drawer-links a.active{color:var(--text-1)}
.drawer-links a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.drawer-cta{margin-top:auto;width:100%;height:52px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,
             color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#12C79A);
  color:#04231C;box-shadow:0 8px 28px -6px rgba(23,224,178,.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 34px -8px rgba(23,224,178,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px -8px rgba(23,224,178,.6)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(23,224,178,.4);padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.link-more:hover{border-color:var(--brand);color:#5CF0CC}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- section basics ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:32px}
@media (min-width:1024px){.section-head{margin-bottom:48px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--brand);
  border:1px solid rgba(23,224,178,.35);background:rgba(23,224,178,.08);
  border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.015em}
h3{font-size:18px;line-height:1.45;font-weight:600}
.lead{font-size:16px;color:var(--text-2);margin-top:14px}
@media (min-width:768px){.lead{font-size:17px}}
.muted{color:var(--text-3);font-size:13px}

/* ---------- page head ---------- */
.page-head{padding:32px 0 0}
@media (min-width:1024px){.page-head{padding:48px 0 0}}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumb a{color:var(--text-2);transition:color .2s}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .current{color:var(--text-3)}
.head-visual{position:relative;margin-top:32px;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.head-visual img{width:100%;height:200px;object-fit:cover}
@media (min-width:768px){.head-visual img{height:220px}}
.head-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.42),rgba(5,7,13,.62) 60%,rgba(5,7,13,.88));
}
.head-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:13px;color:var(--text-1);
  background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}
.head-tag i{color:var(--brand)}
.stat-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:24px}
.stat-item .stat-num{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-item .stat-label{font-size:13px;color:var(--text-3)}

/* ---------- cards ---------- */
.card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card-hover:hover{transform:translateY(-3px);border-color:rgba(23,224,178,.35);box-shadow:0 26px 50px -26px rgba(0,0,0,.9)}
.matrix-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.matrix-grid{grid-template-columns:repeat(2,1fr)}}
.matrix-card{padding:24px}
@media (min-width:768px){.matrix-card{padding:28px}}
.card-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.icon-badge{
  width:40px;height:40px;flex-shrink:0;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--brand);
  background:linear-gradient(180deg,rgba(23,224,178,.16),rgba(23,224,178,.05));
  border:1px solid rgba(23,224,178,.28);
}
.icon-badge.blue{color:#9DB6FF;background:linear-gradient(180deg,rgba(76,125,255,.18),rgba(76,125,255,.05));border-color:rgba(76,125,255,.3)}
.icon-badge.amber{color:var(--accent);background:linear-gradient(180deg,rgba(255,176,32,.18),rgba(255,176,32,.05));border-color:rgba(255,176,32,.3)}
.card-desc{font-size:14px;color:var(--text-2);min-height:52px}
.spec-list{margin-top:18px;border-top:1px solid var(--line)}
.spec-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.spec-list li:last-child{border-bottom:0}
.spec-key{color:var(--text-3)}
.spec-val{color:var(--text-1);font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;
  padding:3px 10px;border-radius:999px;
  color:var(--brand);background:rgba(23,224,178,.08);
  border:1px solid rgba(23,224,178,.35);
}
.tag.amber{color:var(--accent);background:rgba(255,176,32,.08);border-color:rgba(255,176,32,.32)}
.tag.blue{color:#9DB6FF;background:rgba(76,125,255,.1);border-color:rgba(76,125,255,.32)}

/* ---------- split / alternating ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){
  .split{grid-template-columns:1fr 1fr;gap:48px}
  .split.reverse .split-media{order:2}
}
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.08);position:relative}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.split-media:hover img{transform:scale(1.04)}
.split-body .lead{font-size:15px}
.mini-list{margin-top:20px;display:grid;gap:12px}
.mini-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.mini-list i{color:var(--brand);font-size:13px;margin-top:6px}

/* ---------- device cards ---------- */
.three-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.three-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.three-grid{grid-template-columns:repeat(3,1fr)}}
.device-card{padding:24px}
.device-card h3{margin-bottom:8px}
.device-card p{font-size:14px;color:var(--text-2)}
.device-meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;justify-content:space-between;gap:12px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:0;margin-top:8px}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
.step{position:relative;padding:20px 0 20px 46px}
@media (min-width:1024px){
  .step{padding:0 0 0 0;border-left:1px solid var(--line);padding-left:22px}
  .step:first-child{border-left:0;padding-left:0}
}
.step-num{
  position:absolute;left:0;top:16px;
  font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
}
@media (min-width:1024px){.step-num{position:static;display:block;margin-bottom:10px;font-size:22px}}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14px;color:var(--text-2)}
.step::before{
  content:"";position:absolute;left:14px;top:46px;bottom:8px;width:1px;background:var(--line);
}
@media (min-width:1024px){.step::before{display:none}}
.step:last-child::before{display:none}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--text-2);max-width:720px}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  border-radius:20px;
  box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  padding:32px 24px;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 40px}
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px)}
.cta-band p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:560px}

/* ---------- related ---------- */
.related-list{border-top:1px solid var(--line)}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease;
}
.related-list a:hover{color:var(--brand);padding-left:6px}
.related-list i{font-size:12px;color:var(--text-3)}
.related-list a:hover i{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{margin-top:56px;border-top:1px solid var(--line);background:rgba(5,7,13,.6)}
@media (min-width:1024px){.site-footer{margin-top:96px}}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 32px;
}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:64px 0 40px}}
.footer-brand p{font-size:14px;color:var(--text-2);margin-top:16px;max-width:340px}
.footer-anchor{
  display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(23,224,178,.4);padding-bottom:2px;
}
.footer-anchor:hover{color:#5CF0CC;border-color:var(--brand)}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  font-size:14px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--brand);transform:translateX(4px)}
.footer-qr{
  width:120px;height:120px;border-radius:14px;
  border:1px dashed rgba(140,190,255,.25);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;color:var(--text-3);line-height:1.6;
}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* roulang page: category3 */
:root{
  --bg-0:#05070D;
  --bg-1:#0A0F1A;
  --bg-2:#0E1524;
  --brand:#17E0B2;
  --brand-deep:#12C79A;
  --brand-2:#4C7DFF;
  --accent:#FFB020;
  --text-1:#E9F1FF;
  --text-2:#9FB0C9;
  --text-3:#64748B;
  --line:rgba(140,190,255,.12);
  --glass:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.8);
  --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","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg-0);
  color:var(--text-1);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 78% 10%,rgba(23,224,178,.13),transparent 46%),
    linear-gradient(rgba(140,190,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.05) 1px,transparent 1px);
  background-size:auto,32px 32px,32px 32px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.22;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(23,224,178,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:rgba(140,190,255,.18);border-radius:999px;border:2px solid var(--bg-0)}
::-webkit-scrollbar-thumb:hover{background:rgba(23,224,178,.42)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 40px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(5,7,13,.74);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,background .3s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(5,7,13,.9)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:24px;height:24px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 20px -4px rgba(23,224,178,.75);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:#05070D;opacity:.85;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:18px;font-weight:700;color:var(--text-1)}
.logo-sub{font-size:12px;color:var(--text-3);font-weight:400;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:32px}
.nav-drawer-cta{display:none}
.burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:rgba(255,255,255,.03);
  cursor:pointer;
  padding:0;
  place-items:center;
  gap:5px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
}
.burger span{display:block;width:18px;height:1px;background:var(--text-1);transition:transform .25s ease,opacity .25s ease}
body.nav-open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,filter .22s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04241C;
  box-shadow:0 8px 28px -6px rgba(23,224,178,.55);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 14px 34px -8px rgba(23,224,178,.7)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px -4px rgba(23,224,178,.55)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-1);font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(23,224,178,.5);
  padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 通用板块 ---------- */
main{position:relative;z-index:1}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1280px){.section{padding:104px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;padding:6px 12px;border-radius:999px;
  border:1px solid rgba(23,224,178,.35);
  background:rgba(23,224,178,.08);
  color:var(--brand);
}
.glass{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 页头 ---------- */
.page-head{padding-top:36px}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);margin-bottom:28px;
}
.crumbs a{color:var(--text-2);transition:color .2s ease}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-3);opacity:.7}
.crumbs .current{color:var(--text-3)}
.head-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){
  .head-grid{grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:48px;align-items:start}
}
.head-grid h1{
  font-size:clamp(30px,5vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  margin:18px 0 16px;
}
.head-lead{font-size:17px;color:var(--text-2);max-width:640px}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:34px}
.stat{border-left:2px solid rgba(23,224,178,.5);padding-left:14px}
.stat-num{
  font-size:22px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.stat-label{font-size:13px;color:var(--text-3)}
.facts{padding:26px;border-radius:var(--radius)}
.facts h3{font-size:16px;font-weight:600;margin-bottom:16px;color:var(--text-1)}
.facts li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-top:1px solid var(--line);font-size:14px;color:var(--text-2);
}
.facts li:first-of-type{border-top:0;padding-top:0}
.facts .dot{
  width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;margin-top:9px;
  box-shadow:0 0 10px rgba(255,176,32,.6);
}
.head-banner{
  position:relative;margin-top:40px;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.head-banner img{width:100%;height:200px;object-fit:cover}
.head-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,13,.35),rgba(5,7,13,.72));
}
.head-banner figcaption{
  position:absolute;left:24px;bottom:20px;z-index:2;
  font-size:14px;color:var(--text-1);letter-spacing:.02em;
}

/* ---------- 安全提示条 ---------- */
.alert-stack{display:grid;gap:20px}
.alert{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px;
  border-radius:16px;
  border:1px solid rgba(255,176,32,.26);
  border-left:3px solid var(--accent);
  background:linear-gradient(180deg,rgba(255,176,32,.08),rgba(255,255,255,.02));
  box-shadow:var(--shadow);
}
@media(min-width:1024px){
  .alert-stack .alert:nth-child(1){max-width:100%}
  .alert-stack .alert:nth-child(2){max-width:94%;margin-left:28px}
  .alert-stack .alert:nth-child(3){max-width:97%;margin-left:12px}
}
.alert-icon{
  width:38px;height:38px;flex:none;border-radius:11px;
  display:grid;place-items:center;
  background:rgba(255,176,32,.15);color:var(--accent);
  font-size:16px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.alert h3{font-size:17px;font-weight:600;margin-bottom:6px}
.alert p{font-size:15px;color:var(--text-2)}

/* ---------- 问答卡 ---------- */
.qa-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){.qa-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.qa-card{
  padding:28px;border-radius:var(--radius);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.qa-card:hover{transform:translateY(-3px);border-color:rgba(23,224,178,.35)}
.qa-card:focus-within{border-color:rgba(23,224,178,.5)}
.qa-num{
  font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.1em;
}
.qa-card h3{font-size:19px;font-weight:600;margin:10px 0 12px;letter-spacing:-.01em}
.qa-card p{font-size:15px;color:var(--text-2)}
.qa-steps{margin-top:16px;display:grid;gap:10px}
.qa-steps li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);
  padding-top:10px;border-top:1px solid var(--line);
}
.qa-steps li span{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;flex:none}

/* ---------- 左标题右清单 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:1024px){.split{grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:56px;align-items:start}}
.split-side{position:relative}
@media(min-width:1024px){.split-side{position:sticky;top:104px}}
.split-side h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25}
.split-side p{margin-top:14px;color:var(--text-2);font-size:16px}
.check-list{counter-reset:ck;display:grid;gap:0}
.check-list li{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.check-list li:first-child{border-top:1px solid var(--line)}
.check-list .idx{
  font-size:20px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.5;flex:none;width:38px;
}
.check-list h3{font-size:17px;font-weight:600;margin-bottom:4px}
.check-list p{font-size:15px;color:var(--text-2)}

/* ---------- 图文区 ---------- */
.media-row{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.media-row{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px}}
.media-row figure{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.media-row figure img{width:100%;height:280px;object-fit:cover}
@media(min-width:768px){.media-row figure img{height:340px}}
.media-row figure::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,13,.15),rgba(5,7,13,.5));
}
.media-row h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;margin-bottom:16px}
.media-row p{color:var(--text-2);font-size:16px}
.issue-list{margin-top:24px;display:grid;gap:14px}
.issue-list li{
  padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.issue-list strong{display:block;color:var(--text-1);font-size:16px;font-weight:600;margin-bottom:4px}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;gap:24px;
  align-items:center;justify-content:space-between;
  padding:36px 32px;border-radius:20px;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
@media(min-width:768px){.cta-band{padding:44px 48px}}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.3}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 相关阅读 ---------- */
.read-list{border-top:1px solid var(--line)}
.read-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.read-list a:hover{color:var(--brand);transform:translateX(4px)}
.read-list a span{font-size:13px;color:var(--text-3);flex:none}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:40px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding-top:56px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:48px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}}
.footer-title{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:15px;margin-top:16px;max-width:340px}
.footer-anchor{
  display:inline-block;margin-top:16px;color:var(--brand);font-size:15px;
  border-bottom:1px solid rgba(23,224,178,.5);padding-bottom:2px;
}
.footer-anchor:hover{border-color:var(--brand)}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--text-2);font-size:15px;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--brand);transform:translateX(4px)}
.footer-qr{
  width:112px;height:112px;border-radius:14px;
  border:1px dashed rgba(140,190,255,.28);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:rgba(255,255,255,.02);
}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动端导航 ---------- */
@media(max-width:1023px){
  .nav-links{
    position:fixed;inset:0;z-index:60;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:96px 24px 32px;
    background:rgba(5,7,13,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  body.nav-open{overflow:hidden}
  .nav-link{
    font-size:18px;line-height:56px;width:100%;
    border-bottom:1px solid var(--line);padding:0;
  }
  .nav-link::after{display:none}
  .nav-link.active::before{left:auto;right:0}
  .nav-drawer-cta{
    display:inline-flex;margin-top:28px;width:100%;min-height:52px;
  }
  .nav-actions{display:none}
  .burger{display:flex;margin-left:auto;z-index:70}
  .logo-sub{display:none}
}
@media(max-width:519px){
  .head-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .alert{padding:20px}
  .qa-card{padding:22px}
  .facts{padding:22px}
}