/* roulang page: index */
:root{
  --bg:#071113;
  --bg-2:#0A181B;
  --panel:#0C1C1F;
  --panel-2:#122A2E;
  --line:#1E3D42;
  --line-weak:#24494E;
  --primary:#34F5D0;
  --primary-deep:#0FA88F;
  --primary-soft:#8DFFE9;
  --coral:#FF7A4D;
  --coral-hover:#FF946E;
  --warn:#FFD166;
  --danger:#FF6B6B;
  --text:#E8FFFB;
  --text-2:#B7D8D3;
  --text-3:#93B7B2;
  --invert:#061012;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-xl:20px;
  --shadow:0 12px 40px rgba(0,0,0,.28);
  --ease:200ms cubic-bezier(.4,0,.2,1);
}
*,*::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:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-soft)}
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(--primary);outline-offset:2px;border-radius:4px}
.shell{width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}
.section{padding:84px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);
  background:rgba(52,245,208,.08);
  border:1px solid rgba(52,245,208,.24);
  border-radius:6px;
  padding:6px 13px;
  margin-bottom:18px;
}
.sec-title{
  font-size:clamp(1.75rem,3vw,2.5rem);
  font-weight:700;line-height:1.25;letter-spacing:.01em;
  color:var(--text);
}
.sec-desc{color:var(--text-2);font-size:16px;line-height:1.85;margin-top:16px;max-width:70ch}
.hairline{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--primary),rgba(52,245,208,.06) 55%,transparent)}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:11px;
  font-size:15px;font-weight:700;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--coral);color:var(--invert);box-shadow:0 6px 20px rgba(255,122,77,.22)}
.btn-primary:hover{background:var(--coral-hover);color:var(--invert);transform:translateY(-1px);box-shadow:0 8px 26px rgba(255,122,77,.4)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(52,245,208,.4)}
.btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.7);color:var(--primary-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{padding:15px 28px;font-size:16px;min-height:52px}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,17,19,.96);backdrop-filter:blur(12px)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--primary),rgba(52,245,208,.1) 62%,transparent)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(52,245,208,.22),rgba(255,122,77,.18));
  border:1px solid rgba(52,245,208,.34);
  color:var(--primary);font-size:16px;
  box-shadow:0 0 18px rgba(52,245,208,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.24}
.brand-top{font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-bottom{font-size:11.5px;font-weight:500;letter-spacing:.06em;color:var(--text-3)}
.main-nav{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color var(--ease);
}
.nav-link:hover{color:var(--primary-soft)}
.nav-link:hover::after{content:"";position:absolute;left:0;right:0;bottom:22px;height:1px;background:rgba(52,245,208,.55)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(52,245,208,.85);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.header-cta{min-height:42px;padding:10px 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(52,245,208,.08);border:1px solid rgba(52,245,208,.3);
  color:var(--primary);font-size:17px;cursor:pointer;
  transition:background var(--ease),border-color var(--ease);
}
.nav-toggle:hover{background:rgba(52,245,208,.16);border-color:rgba(52,245,208,.6)}
.mobile-menu{
  position:absolute;left:0;right:0;top:72px;
  background:#08171A;border-bottom:1px solid var(--line);
  padding:20px 20px 26px;
  box-shadow:0 24px 50px rgba(0,0,0,.55);
}
.mobile-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-bottom:18px}
.mobile-nav a{
  display:flex;align-items:center;min-height:46px;padding:0 14px;
  border-radius:10px;border:1px solid var(--line-weak);
  color:var(--text-2);font-size:15px;font-weight:500;
  background:rgba(12,28,31,.7);
}
.mobile-nav a:hover{color:var(--primary);border-color:rgba(52,245,208,.5);background:rgba(52,245,208,.08)}
.mobile-nav a.is-active{color:var(--primary);border-color:rgba(52,245,208,.6);box-shadow:0 0 0 1px rgba(52,245,208,.25) inset}
.mobile-cta{width:100%}
/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#071113 0%,#0A181B 55%,#0B2124 100%)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.hero-veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(7,17,19,.94) 8%,rgba(7,17,19,.72) 48%,rgba(7,17,19,.86) 100%)}
.scales{
  position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:
    radial-gradient(circle at 12px 12px, #34F5D0 1px, transparent 1.7px),
    radial-gradient(circle at 0 0, #34F5D0 .8px, transparent 1.5px);
  background-size:24px 24px,24px 24px;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-top:78px;padding-bottom:86px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--primary);
  border:1px solid rgba(52,245,208,.32);background:rgba(52,245,208,.09);
  border-radius:6px;padding:7px 14px;margin-bottom:22px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.hero h1{
  font-size:clamp(2.25rem,4.6vw,3.65rem);
  font-weight:800;line-height:1.18;letter-spacing:.01em;
  color:var(--text);
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:58ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:32px}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-3)}
.hero-points i{color:var(--primary);font-size:12px}
.guide-card{
  background:rgba(12,28,31,.92);
  border:1px solid rgba(36,73,78,.95);
  border-radius:var(--r-xl);
  padding:26px;
  box-shadow:0 18px 50px rgba(0,0,0,.5),0 0 0 1px rgba(52,245,208,.07) inset;
  backdrop-filter:blur(6px);
}
.guide-head{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:6px}
.guide-dot{width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary)}
.guide-head span:nth-child(2){font-size:15px;font-weight:700;color:var(--text)}
.guide-tag{margin-left:auto;font-size:12px;font-weight:600;color:var(--warn);border:1px solid rgba(255,209,102,.35);background:rgba(255,209,102,.1);border-radius:5px;padding:2px 9px}
.guide-steps{display:flex;flex-direction:column}
.guide-steps li{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed rgba(30,61,66,.9)}
.guide-steps li:last-child{border-bottom:0}
.g-num{
  flex-shrink:0;width:34px;height:34px;border-radius:9px;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  color:var(--text-3);background:rgba(18,42,46,.9);border:1px solid var(--line-weak);
}
.guide-steps li.is-current .g-num{color:var(--invert);background:var(--primary);border-color:var(--primary);box-shadow:0 0 16px rgba(52,245,208,.45)}
.guide-steps b{display:block;font-size:15px;font-weight:700;color:var(--text);line-height:1.5}
.guide-steps li.is-current b{color:var(--primary)}
.guide-steps p{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-top:4px}
.guide-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--primary);
}
.guide-link i{transition:transform var(--ease)}
.guide-link:hover i{transform:translateX(4px)}
/* ---------- cards ---------- */
.card{
  background:var(--panel);border:1px solid var(--line-weak);border-radius:var(--r-l);
  padding:24px;box-shadow:var(--shadow);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card:hover{border-color:rgba(52,245,208,.45);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(52,245,208,.35),0 18px 44px rgba(0,0,0,.4)}
/* ---------- pain ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.pain-card{position:relative;padding:28px}
.pain-card:nth-child(2){margin-top:26px}
.pain-card:nth-child(4){margin-top:-26px}
.pain-index{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--coral)}
.pain-card h3{font-size:1.22rem;font-weight:700;line-height:1.45;margin-top:12px;color:var(--text)}
.pain-card p{font-size:15px;line-height:1.8;color:var(--text-2);margin-top:10px}
.pain-icon{
  position:absolute;right:24px;top:24px;font-size:18px;
  color:rgba(52,245,208,.5);
}
/* ---------- steps ---------- */
.step-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:64px}
.step-row:last-child{margin-bottom:0}
.step-row.is-reverse .step-media{order:2}
.step-media{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line-weak);box-shadow:var(--shadow)}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 240ms ease}
.step-media:hover img{transform:scale(1.03)}
.step-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,17,19,.05),rgba(7,17,19,.55))}
.step-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.18em;
  color:var(--coral);margin-bottom:12px;
}
.step-copy h3{font-size:clamp(1.3rem,2.2vw,1.65rem);font-weight:700;line-height:1.35;color:var(--text)}
.step-copy p{font-size:16px;line-height:1.85;color:var(--text-2);margin-top:14px;max-width:56ch}
.step-list{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.step-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-3);line-height:1.7}
.step-list li::before{content:"";flex-shrink:0;width:16px;height:1px;background:var(--primary);margin-top:14px}
/* ---------- metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
}
.metric{background:var(--panel);padding:32px 22px;text-align:center}
.metric b{display:block;font-size:2.1rem;font-weight:800;line-height:1.15;color:var(--primary);letter-spacing:.01em}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--text-3)}
/* ---------- testimonial ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote-card{position:relative;padding:28px 24px 24px}
.quote-card:nth-child(2){margin-top:30px}
.quote-card:nth-child(3){margin-top:14px}
.quote-mark{font-size:44px;line-height:1;color:rgba(52,245,208,.14);font-weight:800;font-family:Georgia,serif}
.quote-card p{font-size:15.5px;line-height:1.85;color:var(--text-2);margin-top:-6px}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;font-size:15px;font-weight:800;
  background:linear-gradient(135deg,rgba(52,245,208,.24),rgba(255,122,77,.2));
  border:1px solid rgba(52,245,208,.35);color:var(--primary-soft);
}
.quote-who b{display:block;font-size:14.5px;font-weight:700;color:var(--text)}
.quote-who span{display:block;font-size:12.5px;color:var(--text-3)}
/* ---------- CMS list ---------- */
.news-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:32px}
.news-main{display:flex;flex-direction:column;overflow:hidden;padding:0}
.news-main .thumb{position:relative;overflow:hidden;border-radius:var(--r-l) var(--r-l) 0 0}
.news-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 240ms ease}
.news-main:hover .thumb img{transform:scale(1.03)}
.news-main .body{padding:26px}
.news-main h3{font-size:1.35rem;font-weight:700;line-height:1.45;color:var(--text);margin-top:14px}
.news-main:hover h3{color:var(--primary-soft)}
.news-main p{font-size:15px;line-height:1.8;color:var(--text-2);margin-top:12px}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--primary);
  background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.28);
  border-radius:5px;padding:3px 10px;
}
.badge-coral{color:var(--coral);background:rgba(255,122,77,.1);border-color:rgba(255,122,77,.3)}
.news-side{display:flex;flex-direction:column;gap:14px}
.news-item{display:block;padding:20px;color:var(--text)}
.news-item h4{font-size:16px;font-weight:600;line-height:1.55;color:var(--text);margin-bottom:10px;transition:color var(--ease)}
.news-item:hover h4{color:var(--primary-soft)}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-3)}
.news-foot i{color:var(--primary);transition:transform var(--ease)}
.news-item:hover .news-foot i{transform:translateX(4px)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  gap:14px;padding:64px 28px;
  background:var(--panel);border:1px dashed var(--line-weak);border-radius:var(--r-l);
}
.empty-state i{font-size:26px;color:rgba(52,245,208,.55)}
.empty-state p{font-size:15px;color:var(--text-3)}
/* ---------- faq ---------- */
.faq-wrap{max-width:940px}
.faq-item{
  background:var(--panel);border:1px solid var(--line-weak);
  border-radius:var(--r-m);margin-bottom:10px;overflow:hidden;
  transition:background var(--ease),border-color var(--ease);
}
.faq-item:hover{border-color:rgba(52,245,208,.4)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary-soft)}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:22px;font-weight:400;line-height:1;
  color:var(--primary);transition:transform var(--ease);
}
.faq-item[open]{background:var(--panel-2);border-color:rgba(52,245,208,.45)}
.faq-item[open] summary{box-shadow:inset 2px 0 0 var(--primary);color:var(--primary-soft)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border:1px solid var(--line-weak);border-radius:22px;
  background:linear-gradient(135deg,#0A181B 0%,#0D2428 60%,#082024 100%);
  padding:64px 56px;text-align:center;
  box-shadow:var(--shadow);
}
.cta-panel .scales{opacity:.07}
.cta-panel h2{position:relative;font-size:clamp(1.75rem,3vw,2.4rem);font-weight:700;line-height:1.3;color:var(--text)}
.cta-panel p{position:relative;margin-top:16px;font-size:16px;line-height:1.8;color:var(--text-2)}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px}
/* ---------- footer ---------- */
.site-footer{position:relative;background:#050C0D;padding:64px 0 28px;margin-top:0}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,var(--primary),rgba(52,245,208,.08) 60%,transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.footer-brand .brand-text{margin-top:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-3);margin-top:16px;max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-3);transition:color var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
/* ---------- mobile sticky cta ---------- */
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  padding:9px 16px calc(9px + env(safe-area-inset-bottom));
  background:rgba(7,17,19,.97);border-top:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.mobile-cta-bar .btn{width:100%}
/* ---------- responsive ---------- */
@media (max-width:1279px){
  .nav-list{gap:20px}
  .header-cta{padding:9px 14px;font-size:13.5px}
}
@media (max-width:1199px){
  .main-nav{display:none}
  .nav-toggle{display:grid;place-items:center}
  .header-cta{display:none}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding-top:60px;padding-bottom:64px}
  .hero-sub{max-width:none}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .shell{padding-left:24px;padding-right:24px}
  .mobile-cta-bar{display:block}
  body{padding-bottom:76px}
  .step-row{gap:32px;margin-bottom:48px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr 1fr}
  .quote-card:nth-child(3){margin-top:0}
  .cta-panel{padding:48px 32px}
}
@media (max-width:767px){
  .pain-grid{grid-template-columns:1fr;gap:18px}
  .pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:0}
  .step-row{grid-template-columns:1fr}
  .step-row.is-reverse .step-media{order:0}
  .quote-grid{grid-template-columns:1fr}
  .quote-card:nth-child(2),.quote-card:nth-child(3){margin-top:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero h1{font-size:clamp(1.9rem,7vw,2.5rem)}
  .hero-actions .btn{width:100%}
  .mobile-nav{grid-template-columns:1fr}
  .cta-panel{padding:40px 22px;border-radius:18px}
  .cta-actions .btn{width:100%}
  .faq-item summary{font-size:16px;padding:17px 18px}
  .faq-body{padding:0 18px 18px;font-size:15px}
}
@media (max-width:639px){
  .shell{padding-left:20px;padding-right:20px}
  .header-inner{height:66px}
  .mobile-menu{top:66px}
  .brand-mark{width:34px;height:34px;font-size:14px}
  .brand-top{font-size:13px}
  .brand-bottom{font-size:10.5px}
  .metrics{grid-template-columns:1fr 1fr}
  .metric{padding:24px 16px}
  .metric b{font-size:1.7rem}
  .section{padding:52px 0}
  .sec-head{margin-bottom:32px}
}
@media (max-width:419px){
  .footer-grid{grid-template-columns:1fr}
  .news-main .body{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#071113;
  --bg-2:#0A181B;
  --panel:#0C1C1F;
  --panel-2:#122A2E;
  --line:#1E3D42;
  --line-soft:#24494E;
  --primary:#34F5D0;
  --primary-dark:#0FA88F;
  --primary-light:#8DFFE9;
  --coral:#FF7A4D;
  --coral-light:#FF946E;
  --warn:#FFD166;
  --err:#FF6B6B;
  --text:#E8FFFB;
  --text-2:#B7D8D3;
  --text-3:#93B7B2;
  --ink:#061012;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --shadow:0 12px 40px rgba(0,0,0,.28);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::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:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:.01em}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}
::selection{background:rgba(52,245,208,.26);color:#fff}

.shell{width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 24px;border-radius:12px;
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 24px rgba(255,122,77,.22)}
.btn-primary:hover{background:var(--coral-light);transform:translateY(-1px);box-shadow:0 12px 30px rgba(255,122,77,.34)}
.btn-primary:active{transform:translateY(0);background:var(--coral);box-shadow:0 6px 16px rgba(255,122,77,.24)}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid rgba(52,245,208,.4)}
.btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.72);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:rgba(52,245,208,.14)}
.btn-sm{min-height:42px;padding:10px 18px;font-size:14px;border-radius:10px}

.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700;font-size:14px;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;transition:color .2s ease}
.link-arrow:hover{color:var(--primary-light)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,17,19,.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,.85),rgba(52,245,208,.18) 55%,rgba(52,245,208,0));
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(135deg,rgba(52,245,208,.2),rgba(255,122,77,.14));
  border:1px solid rgba(52,245,208,.35);
  color:var(--primary);font-size:16px;
  box-shadow:0 0 18px rgba(52,245,208,.12);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-top{font-size:15px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-bottom{font-size:12px;font-weight:600;color:var(--primary);letter-spacing:.09em}

.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 13px;
  font-size:14.5px;font-weight:500;color:var(--text-2);border-radius:10px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(52,245,208,.06)}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(52,245,208,.8);
}
.header-cta{flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-soft);color:var(--text);
  align-items:center;justify-content:center;font-size:17px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(52,245,208,.6);color:var(--primary);background:rgba(52,245,208,.07)}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:52px 0 68px;background:linear-gradient(135deg,#071113 0%,#0A181B 55%,#0C1C1F 100%)}
.page-hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.26}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(75% 60% at 18% 12%,rgba(52,245,208,.12),transparent 62%),
    linear-gradient(180deg,rgba(7,17,19,.55),rgba(7,17,19,.94));
}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:52px;align-items:center}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--text-3);transition:color .2s ease}
.crumbs a:hover{color:var(--primary)}
.crumbs span[aria-hidden]{color:var(--line-soft)}
.crumbs .current{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(1.95rem,3.7vw,3.05rem);
  line-height:1.2;
  letter-spacing:.01em;
  color:var(--text);
}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.2;
  color:var(--primary);background:rgba(52,245,208,.08);
  border:1px solid rgba(52,245,208,.24);
}
.tag i{font-size:11px}
.tag-warn{color:var(--warn);background:rgba(255,209,102,.09);border-color:rgba(255,209,102,.28)}
.tag-coral{color:var(--coral);background:rgba(255,122,77,.1);border-color:rgba(255,122,77,.3)}

.hero-media{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(7,17,19,.05),rgba(7,17,19,.6))}
.hero-media:hover img{transform:scale(1.03)}
.hero-media figcaption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-2);line-height:1.6;
}

/* ============ 通用板块 ============ */
.section{padding:76px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:800;letter-spacing:.16em;
  color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--primary),rgba(52,245,208,0))}
.section-head h2{font-size:clamp(1.6rem,2.7vw,2.25rem);color:var(--text)}
.section-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:70ch}

.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(52,245,208,.55),rgba(52,245,208,.06) 60%,rgba(52,245,208,0))}

/* ============ 步骤时间线 ============ */
.timeline{position:relative;display:grid;gap:16px;max-width:940px}
.tl-item{
  position:relative;
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:22px;
  padding:24px 26px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.tl-item:hover{border-color:rgba(52,245,208,.45);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(52,245,208,.3),var(--shadow)}
.tl-num{
  display:grid;place-items:center;
  width:56px;height:56px;border-radius:14px;
  font-size:18px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--primary);
  background:rgba(52,245,208,.07);
  border:1px solid rgba(52,245,208,.28);
  letter-spacing:.03em;
}
.tl-item.is-current{background:linear-gradient(135deg,rgba(52,245,208,.08),rgba(12,28,31,.9))}
.tl-item.is-current .tl-num{color:var(--ink);background:var(--primary);border-color:var(--primary);box-shadow:0 0 22px rgba(52,245,208,.5)}
.tl-body h3{font-size:19px;color:var(--text);font-weight:700}
.tl-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:72ch}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-tags .tag{font-size:12px;padding:6px 11px}

/* ============ 状态核对区 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}
.split-copy h2{font-size:clamp(1.6rem,2.7vw,2.25rem);color:var(--text)}
.split-copy p{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:56ch}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;font-size:15px;line-height:1.8;color:var(--text-2)}
.check-list li i{color:var(--primary);font-size:14px;margin-top:7px}

.status-card{
  background:linear-gradient(150deg,var(--panel-2),var(--panel));
  border:1px solid var(--line-soft);
  border-radius:var(--r-xl);
  padding:26px;
  box-shadow:var(--shadow);
}
.status-card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.status-card-head h3{font-size:17px;color:var(--text)}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;
  color:var(--primary);background:rgba(52,245,208,.1);
  border:1px solid rgba(52,245,208,.3);
}
.status-pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(52,245,208,.9)}
.status-row{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;padding:16px 0;border-bottom:1px dashed rgba(36,73,78,.85)}
.status-row:last-child{border-bottom:0;padding-bottom:0}
.status-row dt{font-size:13.5px;font-weight:700;color:var(--text-3);letter-spacing:.04em;padding-top:1px}
.status-row dd{margin:0;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.status-row dd strong{color:var(--primary-light);font-weight:700}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-list{display:grid;gap:10px;margin-top:8px}
.faq-item{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(52,245,208,.4)}
.faq-item.is-open{background:var(--panel-2);border-color:rgba(52,245,208,.45);box-shadow:0 0 0 1px rgba(52,245,208,.2)}
.faq-item.is-open::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--primary);border-radius:2px}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-light)}
.faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  border:1px solid rgba(52,245,208,.3);color:var(--primary);font-size:12px;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary);color:var(--ink);border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:72ch}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid rgba(52,245,208,.28);
  background:linear-gradient(135deg,#0A181B 0%,#0C1C1F 55%,#122A2E 100%);
  padding:56px 52px;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(52,245,208,.5) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.06;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,77,.2),transparent 68%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(1.5rem,2.5vw,2.1rem);color:var(--text)}
.cta-inner p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:62ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:#050C0D;
  padding:64px 0 28px;
  margin-top:8px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,.8),rgba(52,245,208,.15) 60%,rgba(52,245,208,0));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:38ch}
.footer-col h4{font-size:14px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:.05em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-3);transition:color .2s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(36,73,78,.7);
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);line-height:1.7;
}

/* ============ 移动端固定 CTA ============ */
.mobile-cta{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(7,17,19,.97);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.mobile-cta .btn{flex:1;min-height:46px;font-size:14px}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .shell{padding-left:24px;padding-right:24px}
  .nav-toggle{display:flex;margin-left:auto}
  .header-cta{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;
    margin-left:0;
    background:rgba(7,17,19,.99);
    border-bottom:1px solid var(--line);
    padding:16px 24px 22px;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{
    height:50px;justify-content:flex-start;padding:0 14px;
    border-bottom:1px solid rgba(30,61,66,.7);border-radius:0;
    font-size:15px;
  }
  .nav-link.is-active::after{left:0;right:auto;width:3px;height:20px;bottom:auto;top:50%;transform:translateY(-50%);border-radius:2px}
  .nav-link.is-active{padding-left:22px;background:rgba(52,245,208,.07)}
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .split{grid-template-columns:minmax(0,1fr);gap:34px}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:60px 0}
}

@media (max-width:767px){
  .section{padding:48px 0}
  .page-hero{padding:36px 0 52px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1;min-width:150px}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:16px;padding:22px}
  .tl-num{width:48px;height:48px;font-size:16px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 20px}
  .cta-panel{padding:36px 24px}
  .status-card{padding:22px}
  .status-row{grid-template-columns:minmax(0,1fr);gap:6px}
  .footer-bottom{flex-direction:column;gap:8px}
  .mobile-cta{display:flex}
  body{padding-bottom:76px}
}

@media (max-width:519px){
  .shell{padding-left:18px;padding-right:18px}
  .header-inner{height:66px}
  .brand-mark{width:34px;height:34px}
  .brand-top{font-size:13.5px}
  .brand-bottom{font-size:10.5px}
  .main-nav{top:66px}
  .footer-grid{grid-template-columns:1fr}
  .hero-tags .tag{font-size:12px;padding:6px 10px}
  .cta-actions .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#071113;
  --bg-2:#0A181B;
  --panel:#0C1C1F;
  --panel-2:#122A2E;
  --line:#1E3D42;
  --line-soft:#24494E;
  --main:#34F5D0;
  --main-dark:#0FA88F;
  --main-light:#8DFFE9;
  --coral:#FF7A4D;
  --coral-light:#FF946E;
  --warn:#FFD166;
  --error:#FF6B6B;
  --text:#E8FFFB;
  --text-2:#B7D8D3;
  --text-3:#93B7B2;
  --ink:#061012;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --radius-xl:22px;
  --shadow:0 12px 40px rgba(0,0,0,.28);
  --ring:0 0 0 1px rgba(52,245,208,.35);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::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:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--main);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--main-light)}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.25;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,17,19,.96);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,.85),rgba(52,245,208,.16) 55%,rgba(52,245,208,0));
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(135deg,var(--main-dark),var(--main));
  color:var(--ink);font-size:18px;
  box-shadow:var(--ring),0 8px 24px rgba(52,245,208,.18);
  transition:box-shadow .2s ease,transform .2s ease;
}
.brand:hover .brand-mark{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(52,245,208,.7),0 10px 28px rgba(52,245,208,.3)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-top{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text)}
.brand-bottom{font-size:12px;letter-spacing:.06em;color:var(--text-3);font-weight:500}
.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 13px;
  border-radius:8px;font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--main-light);background:rgba(52,245,208,.07)}
.nav-link.is-active{color:var(--main)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--main);box-shadow:0 0 10px rgba(52,245,208,.85);
}
.nav-link.is-active::before{
  content:"";position:absolute;top:9px;right:9px;width:4px;height:4px;border-radius:50%;
  background:var(--main);box-shadow:0 0 8px var(--main);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 20px;border-radius:var(--radius);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 24px rgba(255,122,77,.22)}
.btn-primary:hover{background:var(--coral-light);color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 30px rgba(255,122,77,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,122,77,.26)}
.btn-ghost{background:transparent;border-color:rgba(52,245,208,.4);color:var(--main)}
.btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.72);color:var(--main-light)}
.btn-ghost:active{background:rgba(52,245,208,.16)}
.header-cta{min-height:42px;padding:10px 18px;font-size:14px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--main);outline-offset:2px;border-radius:6px;
}

/* ---------- 移动菜单 ---------- */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-soft);background:transparent;color:var(--text);
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(52,245,208,.5);background:rgba(52,245,208,.08)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:rgba(5,12,13,.985);overflow-y:auto;
  padding:24px 20px calc(96px + env(safe-area-inset-bottom));
}
.mobile-menu[hidden]{display:none}
.mobile-menu-title{font-size:12px;letter-spacing:.18em;color:var(--text-3);margin-bottom:14px;font-weight:700}
.mobile-menu ul{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mobile-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:12px;border:1px solid var(--line);background:var(--panel);
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.mobile-link:hover{color:var(--main-light);border-color:rgba(52,245,208,.4);background:var(--panel-2)}
.mobile-menu-cta{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.mobile-menu-cta .btn{width:100%}

/* ---------- 文章头部 ---------- */
.article-hero{padding:40px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--main)}
.breadcrumb .sep{width:1px;height:10px;background:var(--line-soft);display:inline-block;transform:rotate(14deg)}
.breadcrumb [aria-current="page"]{color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
  background:rgba(255,122,77,.12);border:1px solid rgba(255,122,77,.34);
  color:var(--coral);font-size:12.5px;font-weight:700;letter-spacing:.06em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral);box-shadow:0 0 10px rgba(255,122,77,.9)}
.article-title{
  font-size:clamp(1.85rem,3.6vw,2.95rem);
  font-weight:800;line-height:1.28;letter-spacing:.01em;
  margin:18px 0 16px;max-width:960px;
}
.article-title-tail{color:var(--main-light)}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13.5px;color:var(--text-3);
  padding-bottom:24px;border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--main);font-size:12.5px}
.meta-item strong{color:var(--text-2);font-weight:600}

/* ---------- 封面 ---------- */
.cover-figure{
  margin:28px 0 0;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.cover-figure:hover img{transform:scale(1.02)}
.cover-caption{
  padding:12px 20px;font-size:13px;color:var(--text-3);
  border-top:1px solid var(--line);background:var(--panel);
  display:flex;align-items:center;gap:8px;
}
.cover-caption i{color:var(--main)}

/* ---------- 正文与侧栏 ---------- */
.content-section{padding:48px 0 0}
.content-grid{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(0,1fr);gap:44px;align-items:start}
.article-body{min-width:0}
.prose{max-width:72ch;font-size:17px;line-height:1.9;color:var(--text-2)}
.prose > * + *{margin-top:1.15em}
.prose h2{
  font-size:clamp(1.35rem,2.2vw,1.75rem);color:var(--text);
  margin-top:2.1em;padding-left:14px;border-left:3px solid var(--main);
  line-height:1.45;letter-spacing:.01em;
}
.prose h3{font-size:1.22rem;color:var(--text);margin-top:1.9em;line-height:1.5}
.prose h4{font-size:1.05rem;color:var(--text);margin-top:1.6em}
.prose p{margin:0}
.prose ul,.prose ol{padding-left:1.35em;margin-top:1em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.45em 0;padding-left:.15em}
.prose li::marker{color:var(--main)}
.prose a{color:var(--main);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--main-light)}
.prose strong{color:var(--text);font-weight:700}
.prose blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--coral);
  background:var(--panel);border-radius:0 var(--radius) var(--radius) 0;
  color:var(--text-2);font-size:16.5px;
}
.prose blockquote p{margin:0}
.prose img{border-radius:var(--radius-lg);border:1px solid var(--line);margin:1.5em 0}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.prose thead th{background:var(--panel-2);color:var(--text);font-weight:700}
.prose tbody tr:nth-child(even){background:rgba(18,42,46,.4)}
.prose code{background:var(--panel-2);padding:2px 6px;border-radius:6px;font-size:.92em;color:var(--main-light)}
.prose hr{border:0;height:1px;background:linear-gradient(90deg,var(--main),rgba(52,245,208,0));margin:2.2em 0}

.empty-state{
  border:1px solid var(--line);background:var(--panel);border-radius:var(--radius-lg);
  padding:48px 32px;text-align:center;max-width:560px;
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;display:grid;place-items:center;
  background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.3);color:var(--main);font-size:22px;
}
.empty-state h2{font-size:1.4rem;margin-bottom:10px}
.empty-state p{color:var(--text-3);font-size:15px;margin-bottom:22px}

.article-aside{position:sticky;top:96px;display:grid;gap:18px}
.aside-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;transition:border-color .2s ease}
.aside-card:hover{border-color:rgba(52,245,208,.32)}
.aside-card h3{font-size:15.5px;display:flex;align-items:center;gap:9px;margin-bottom:14px;letter-spacing:.02em}
.aside-card h3 i{color:var(--main);font-size:14px}
.aside-list{display:grid;gap:4px}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:8px 11px;border-radius:10px;border:1px solid transparent;
  color:var(--text-2);font-size:14.5px;transition:all .2s ease;
}
.aside-list a i{font-size:11px;color:var(--text-3);transition:transform .2s ease,color .2s ease}
.aside-list a:hover{background:rgba(52,245,208,.08);border-color:rgba(52,245,208,.28);color:var(--main-light)}
.aside-list a:hover i{color:var(--main);transform:translateX(3px)}
.tip-list{display:grid;gap:12px}
.tip-list li{display:flex;gap:10px;font-size:13.8px;line-height:1.7;color:var(--text-3)}
.tip-list li i{color:var(--warn);margin-top:5px;font-size:12px}
.aside-note{
  font-size:13px;color:var(--text-3);line-height:1.75;
  border-top:1px dashed var(--line);padding-top:14px;margin-top:16px;
}

/* ---------- 通用板块头 ---------- */
.section-kicker{
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--main);
}
.section-kicker::before{content:"";width:24px;height:1px;background:linear-gradient(90deg,var(--main),rgba(52,245,208,0))}
.section-title{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-top:10px;letter-spacing:.01em}
.section-desc{color:var(--text-3);font-size:15px;margin-top:10px;max-width:62ch}

/* ---------- 相关推荐 ---------- */
.related-section{padding:64px 0 0}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:28px}
.card{
  display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover,.card:focus-visible{
  transform:translateY(-2px);
  border-color:rgba(52,245,208,.45);
  box-shadow:var(--shadow),var(--ring);
}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.3);color:var(--main-light);
}
.badge-coral{background:rgba(255,122,77,.12);border-color:rgba(255,122,77,.34);color:var(--coral)}
.card-title{font-size:17px;line-height:1.5;color:var(--text)}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-3)}
.card-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:700;color:var(--main);
}
.card-more i{transition:transform .2s ease}
.card:hover .card-more i{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-section{padding:72px 0 84px}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(52,245,208,.26);
  background:linear-gradient(135deg,#0A181B 0%,#122A2E 58%,#0C1C1F 100%);
  padding:52px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(52,245,208,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,77,.22),rgba(255,122,77,0) 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(1.5rem,2.8vw,2.1rem);line-height:1.35}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin-top:12px;max-width:56ch}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn{min-width:170px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:#050C0D;color:var(--text-3);padding:56px 0 0;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,0),var(--main),rgba(52,245,208,0));
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;padding-bottom:42px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-3);max-width:36ch}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-3);display:inline-flex;align-items:center;min-height:26px;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--main);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.5px;color:#6f8f8b;line-height:1.7;
}

/* ---------- 移动底栏 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:45;
  display:none;gap:10px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(5,12,13,.96);
  border-top:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.mobile-bar .btn{flex:1;min-height:46px;font-size:14.5px;padding:10px 12px}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:0 10px;font-size:14px}
  .header-inner{gap:18px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .content-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .article-aside{position:static;grid-template-columns:1fr 1fr;display:grid}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-panel{padding:40px 32px}
  .mobile-bar{display:flex}
  body{padding-bottom:78px}
}
@media (max-width:768px){
  .shell{padding:0 20px}
  .header-inner{height:68px}
  .mobile-menu{top:68px}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:16px}
  .brand-top{font-size:14px}
  .brand-bottom{font-size:11px}
  .article-hero{padding-top:28px}
  .article-title{font-size:1.8rem;margin:16px 0 14px}
  .content-section{padding-top:34px}
  .article-aside{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .related-section{padding-top:48px}
  .cta-section{padding:52px 0 64px}
  .cta-panel{padding:32px 22px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:0}
  .cover-figure{margin-top:22px;border-radius:16px}
  .prose{font-size:16.5px;line-height:1.9}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .mobile-menu ul{grid-template-columns:1fr}
}
@media (max-width:520px){
  .shell{padding:0 16px}
  .article-title{font-size:1.62rem}
  .meta-row{font-size:12.5px;gap:8px 14px;padding-bottom:18px}
  .breadcrumb{font-size:12px;gap:8px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .aside-card{padding:18px}
  .cta-actions{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg:#071113;--bg-2:#0A181B;--panel:#0C1C1F;--panel-2:#122A2E;
  --line:#1E3D42;--line-weak:#24494E;
  --primary:#34F5D0;--primary-deep:#0FA88F;--primary-soft:#8DFFE9;
  --coral:#FF7A4D;--coral-hover:#FF946E;--warn:#FFD166;--danger:#FF6B6B;
  --text:#E8FFFB;--muted:#B7D8D3;--weak:#93B7B2;--ink:#061012;
  --r-sm:8px;--r-md:12px;--r-card:16px;--r-hero:20px;
  --shadow:0 12px 40px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(52,245,208,.35), 0 12px 40px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--primary-soft);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.shell{width:100%;max-width:1260px;margin:0 auto;padding:0 32px;}
.section{padding:80px 0;position:relative;}
.section--tight{padding:56px 0;}
.rule-line{height:1px;background:linear-gradient(90deg,var(--primary),rgba(52,245,208,0));border:0;margin:0;}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,17,19,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,.85),rgba(52,245,208,.15) 45%,rgba(52,245,208,0));
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:12px;color:var(--ink);font-size:18px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 18px rgba(52,245,208,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-top{font-size:16px;font-weight:800;letter-spacing:.02em;}
.brand-bottom{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.06em;}
.main-nav{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;color:var(--muted);
}
.nav-link:hover{color:var(--text);background:rgba(52,245,208,.07);}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:1px;
  background:transparent;transition:background-color .2s ease;
}
.nav-link:hover::after{background:rgba(52,245,208,.45);}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-link.is-active::after{background:var(--primary);height:2px;box-shadow:0 0 10px rgba(52,245,208,.9);}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-weak);border-radius:var(--r-sm);
  color:var(--text);font-size:18px;
}
.nav-toggle:hover{border-color:rgba(52,245,208,.6);color:var(--primary);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:46px;padding:12px 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;line-height:1.2;border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 24px rgba(255,122,77,.22);}
.btn-primary:hover{background:var(--coral-hover);color:var(--ink);transform:translateY(-1px);box-shadow:0 10px 30px rgba(255,122,77,.32);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(52,245,208,.4);}
.btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.7);color:var(--primary-soft);}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}
.header-cta{flex:0 0 auto;}

/* hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%,rgba(52,245,208,.12),transparent 62%),
    linear-gradient(135deg,#071113 0%,#0A1F22 55%,#071113 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(52,245,208,.18) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;padding:64px 0 72px;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px;}
.crumbs a{color:var(--weak);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--line-weak);}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;
  background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.3);
  color:var(--primary);font-size:13px;font-weight:600;
}
.badge i{font-size:11px;}
.hero h1{
  font-size:clamp(2.25rem,4.4vw,3.6rem);font-weight:800;line-height:1.18;
  margin:20px 0 18px;
}
.hero h1 .hl{color:var(--primary);display:block;font-size:.62em;font-weight:800;letter-spacing:.02em;margin-top:10px;color:var(--primary-soft);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.metric-num{font-size:24px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric-label{font-size:13px;color:var(--weak);}

.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:var(--r-hero);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-figure img{width:100%;height:340px;object-fit:cover;opacity:.85;}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,17,19,.2),rgba(7,17,19,.82));}
.guide-card{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  background:rgba(12,28,31,.94);border:1px solid var(--line-weak);
  border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--shadow);
}
.guide-title{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.08em;margin-bottom:12px;}
.guide-steps{display:flex;flex-direction:column;gap:10px;}
.guide-step{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);}
.guide-step b{
  width:22px;height:22px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:6px;font-size:11px;font-weight:800;
  background:rgba(52,245,208,.12);color:var(--primary);border:1px solid rgba(52,245,208,.28);
  font-variant-numeric:tabular-nums;
}
.guide-step.is-current{color:var(--text);font-weight:600;}
.guide-step.is-current b{background:var(--coral);color:var(--ink);border-color:transparent;}

/* generic block */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);display:inline-block;}
.block-title{font-size:clamp(1.75rem,2.8vw,2.4rem);font-weight:700;line-height:1.3;margin:14px 0 14px;}
.block-lead{color:var(--muted);font-size:16.5px;max-width:64ch;}

/* checklist */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.check-item{
  display:flex;gap:14px;padding:20px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(52,245,208,.45);box-shadow:var(--glow);}
.check-item:nth-child(even){margin-top:0;}
.check-grid .check-item:nth-child(2),
.check-grid .check-item:nth-child(4),
.check-grid .check-item:nth-child(6){transform:translateY(14px);}
.check-grid .check-item:nth-child(2):hover,
.check-grid .check-item:nth-child(4):hover,
.check-grid .check-item:nth-child(6):hover{transform:translateY(12px);}
.check-icon{
  width:30px;height:30px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:8px;background:rgba(52,245,208,.12);color:var(--primary);font-size:13px;
  border:1px solid rgba(52,245,208,.25);
}
.check-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.check-item p{margin:0;font-size:14.5px;line-height:1.75;color:var(--muted);}

.risk-card{
  background:linear-gradient(150deg,var(--panel-2),var(--panel));
  border:1px solid rgba(255,122,77,.35);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.risk-card h3{font-size:19px;margin-bottom:6px;}
.risk-card .risk-note{font-size:13.5px;color:var(--weak);margin-bottom:18px;}
.risk-list{display:flex;flex-direction:column;gap:14px;}
.risk-item{display:flex;gap:12px;padding-bottom:14px;border-bottom:1px dashed var(--line);}
.risk-item:last-child{border-bottom:0;padding-bottom:0;}
.risk-item i{color:var(--coral);font-size:15px;margin-top:5px;}
.risk-item strong{display:block;font-size:15px;margin-bottom:4px;}
.risk-item span{font-size:14px;color:var(--muted);line-height:1.7;}
.risk-foot{
  margin-top:20px;padding:12px 14px;border-radius:10px;
  background:rgba(255,209,102,.1);border:1px solid rgba(255,209,102,.3);
  color:#FFE7A8;font-size:13.5px;line-height:1.7;
}

/* timeline */
.timeline{position:relative;display:flex;flex-direction:column;gap:18px;padding-left:6px;}
.timeline::before{content:"";position:absolute;left:27px;top:16px;bottom:16px;width:1px;background:linear-gradient(180deg,var(--primary),rgba(52,245,208,.06));}
.tl-item{position:relative;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;}
.tl-num{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--panel-2);border:1px solid var(--line);color:var(--coral);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.tl-item.is-current .tl-num{background:var(--coral);color:var(--ink);border-color:transparent;box-shadow:0 0 0 4px rgba(255,122,77,.16);}
.tl-body{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.tl-body:hover{border-color:rgba(52,245,208,.4);transform:translateY(-2px);box-shadow:var(--glow);}
.tl-body h3{font-size:17px;margin-bottom:8px;}
.tl-body p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--primary-soft);
  background:rgba(52,245,208,.09);border:1px solid rgba(52,245,208,.22);
}

/* alert strip */
.alert-strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;
  padding:22px 26px;border-radius:var(--r-card);
  background:linear-gradient(100deg,rgba(255,122,77,.16),rgba(255,122,77,.04));
  border:1px solid rgba(255,122,77,.4);
}
.alert-strip .alert-text{display:flex;gap:14px;align-items:flex-start;max-width:70ch;}
.alert-strip i{color:var(--coral);font-size:20px;margin-top:3px;}
.alert-strip strong{display:block;font-size:16.5px;margin-bottom:4px;}
.alert-strip span{font-size:14.5px;color:var(--muted);}

/* scenario cards */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.scene-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(52,245,208,.45);box-shadow:var(--glow);}
.scene-card img{width:100%;height:200px;object-fit:cover;transition:transform .3s ease;}
.scene-card:hover img{transform:scale(1.03);}
.scene-body{padding:22px 24px;}
.scene-body h3{font-size:19px;margin-bottom:8px;}
.scene-body p{font-size:14.5px;color:var(--muted);margin-bottom:14px;}
.scene-body ul{display:flex;flex-direction:column;gap:8px;}
.scene-body li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);}
.scene-body li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.8;}

/* faq */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  margin-bottom:10px;overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{background:var(--panel-2);border-color:rgba(52,245,208,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .2s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-body{
  padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--muted);
  border-left:2px solid var(--primary);margin-left:22px;padding-left:16px;
}
.faq-item summary:hover{color:var(--primary-soft);}

/* cta panel */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  border:1px solid var(--line-weak);
  background:linear-gradient(135deg,#0A1F22 0%,#071113 60%,#08262A 100%);
  padding:56px 48px;box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(52,245,208,.22) 1px,transparent 1px);
  background-size:20px 20px;opacity:.3;pointer-events:none;
}
.cta-panel h2{font-size:clamp(1.65rem,2.6vw,2.2rem);margin-bottom:12px;}
.cta-panel p{color:var(--muted);max-width:62ch;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;}

/* footer */
.site-footer{background:#050C0D;border-top:1px solid var(--line);position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(52,245,208,.9),rgba(52,245,208,.1) 60%,transparent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;}
.footer-brand p{font-size:14px;color:var(--weak);line-height:1.85;margin-top:18px;max-width:38ch;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--weak);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--weak);
}
.mobile-cta-bar{display:none;}

@media (max-width:1279px){
  .hero-inner{gap:36px;}
}
@media (max-width:1023px){
  .shell{padding:0 24px;}
  .section{padding:60px 0;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:73px;bottom:0;z-index:90;
    background:rgba(7,17,19,.98);border-top:1px solid var(--line);
    padding:20px 20px 110px;margin:0;display:none;overflow-y:auto;
  }
  .main-nav.is-open{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;}
  .nav-link{justify-content:flex-start;padding:14px 12px;font-size:16px;border-radius:10px;background:rgba(255,255,255,.02);}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(52,245,208,.1);box-shadow:inset 2px 0 0 var(--primary);}
  .header-cta{display:none;}
  .hero-inner{grid-template-columns:1fr;padding:44px 0 56px;}
  .hero-figure img{height:280px;}
  .hero-visual{order:2;}
  .check-grid,.scene-grid{grid-template-columns:1fr;}
  .check-grid .check-item:nth-child(2),
  .check-grid .check-item:nth-child(4),
  .check-grid .check-item:nth-child(6){transform:none;}
  .check-grid .check-item:nth-child(2):hover,
  .check-grid .check-item:nth-child(4):hover,
  .check-grid .check-item:nth-child(6):hover{transform:translateY(-2px);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
  .cta-panel{padding:40px 28px;}
  .mobile-cta-bar{
    display:flex;align-items:center;justify-content:center;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;
    padding:0 16px calc(env(safe-area-inset-bottom,0px));
    background:rgba(5,12,13,.96);border-top:1px solid var(--line-weak);
    backdrop-filter:blur(10px);
  }
  .mobile-cta-bar .btn{flex:1;min-height:44px;}
  body{padding-bottom:60px;}
}
@media (max-width:767px){
  .hero h1{font-size:clamp(1.9rem,7vw,2.4rem);}
  .hero-sub{font-size:16px;}
  .block-lead{font-size:15.5px;}
  .scene-card img{height:170px;}
  .alert-strip{padding:18px 20px;}
  .brand-top{font-size:15px;}
  .brand-bottom{font-size:11px;}
}
@media (max-width:519px){
  .shell{padding:0 20px;}
  .section{padding:48px 0;}
  .hero-metrics{gap:20px;}
  .metric-num{font-size:21px;}
  .check-item{padding:16px;}
  .tl-body{padding:16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-panel{padding:32px 22px;}
  .hero-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .scene-card:hover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#071113;
  --bg-2:#0A181B;
  --panel:#0C1C1F;
  --panel-2:#122A2E;
  --line:#1E3D42;
  --line-weak:#24494E;
  --primary:#34F5D0;
  --primary-dark:#0FA88F;
  --primary-light:#8DFFE9;
  --coral:#FF7A4D;
  --coral-light:#FF946E;
  --warn:#FFD166;
  --error:#FF6B6B;
  --text:#E8FFFB;
  --text-2:#B7D8D3;
  --text-3:#93B7B2;
  --ink:#061012;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --shadow-card:0 12px 40px rgba(0,0,0,.28);
  --shadow-glow:0 0 0 1px rgba(52,245,208,.35);
  --shell:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body.page-faq{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.page-faq img{max-width:100%;display:block;}
body.page-faq h1,body.page-faq h2,body.page-faq h3,body.page-faq h4{margin:0;}
body.page-faq p{margin:0;}
body.page-faq ul,body.page-faq ol{margin:0;}
body.page-faq a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
body.page-faq a:hover{color:var(--primary-light);}
body.page-faq button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
body.page-faq :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px;}
@media (max-width:1024px){.shell{padding:0 24px;}}
@media (max-width:640px){.shell{padding:0 20px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,17,19,.96);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(52,245,208,.85),rgba(52,245,208,.15) 45%,transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;display:grid;place-items:center;
  border-radius:12px;font-size:16px;color:var(--primary);
  background:linear-gradient(135deg,rgba(52,245,208,.2),rgba(255,122,77,.16));
  border:1px solid var(--line-weak);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-top{font-weight:800;font-size:15px;letter-spacing:.02em;}
.brand-bottom{font-size:11px;color:var(--text-3);letter-spacing:.08em;}
.main-nav{display:flex;}
.nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:14.5px;color:var(--text-2);border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(52,245,208,.06);}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:1px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);padding-left:22px;}
.nav-link.is-active::before{
  content:"";position:absolute;left:10px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.nav-link.is-active::after{transform:scaleX(1);height:2px;box-shadow:0 0 10px rgba(52,245,208,.7);}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;border-radius:12px;
  background:var(--coral);color:var(--ink);font-weight:700;font-size:14.5px;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{background:var(--coral-light);color:var(--ink);transform:translateY(-1px);box-shadow:0 0 22px rgba(255,122,77,.42);}
.header-cta:active{transform:translateY(1px);}
.menu-btn{
  display:none;width:44px;height:44px;place-items:center;
  border:1px solid var(--line-weak);border-radius:12px;color:var(--text-2);
  background:var(--panel);transition:border-color .2s ease,color .2s ease;
}
.menu-btn:hover{border-color:rgba(52,245,208,.55);color:var(--primary);}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-cta{display:none;}
  .menu-btn{display:grid;}
}
.mobile-panel{
  display:none;position:fixed;inset:73px 0 0;z-index:55;
  background:var(--bg-2);padding:24px 20px 40px;overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-panel.is-open{display:block;}
.mobile-nav-list{list-style:none;margin:0 0 20px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  color:var(--text-2);font-size:15px;
}
.mobile-link.is-active{color:var(--primary);border-color:rgba(52,245,208,.5);box-shadow:var(--shadow-glow);}
.mobile-cta{display:flex;width:100%;align-items:center;justify-content:center;min-height:48px;border-radius:12px;background:var(--coral);color:var(--ink);font-weight:700;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 20px;border-radius:12px;
  font-weight:700;font-size:15px;line-height:1.2;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--coral);color:var(--ink);}
.btn-primary:hover{background:var(--coral-light);color:var(--ink);transform:translateY(-1px);box-shadow:0 0 24px rgba(255,122,77,.42);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border:1px solid rgba(52,245,208,.4);color:var(--primary);}
.btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.7);color:var(--primary-light);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--primary);}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.55;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(135deg,rgba(7,17,19,.95) 0%,rgba(10,24,27,.84) 52%,rgba(18,42,46,.66) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(circle at 14px 14px,rgba(52,245,208,.07) 1.4px,transparent 1.5px);
  background-size:28px 28px;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start;
  padding:60px 0 68px;
}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:44px 0 52px;}
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{width:1px;height:12px;background:var(--line-weak);display:inline-block;}
.hero-title{
  font-size:clamp(2rem,4.2vw,3.35rem);
  font-weight:800;line-height:1.18;letter-spacing:.01em;
  margin-bottom:18px;
}
.hero-title .accent{color:var(--primary);}
.hero-sub{
  font-size:16.5px;color:var(--text-2);line-height:1.85;max-width:60ch;margin-bottom:24px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:8px;font-size:13px;
  background:rgba(52,245,208,.09);border:1px solid rgba(52,245,208,.28);color:var(--primary-light);
}
.chip-coral{background:rgba(255,122,77,.1);border-color:rgba(255,122,77,.32);color:var(--coral-light);}
.anchor-tabs{display:flex;gap:10px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin;}
.anchor-tabs::-webkit-scrollbar{height:4px;}
.anchor-tabs::-webkit-scrollbar-thumb{background:var(--line-weak);border-radius:4px;}
.anchor-tab{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  min-height:40px;padding:0 14px;border-radius:10px;
  background:rgba(12,28,31,.85);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;transition:.2s ease;
}
.anchor-tab:hover{border-color:rgba(52,245,208,.6);background:rgba(52,245,208,.08);color:var(--primary);}
.hero-card{
  background:rgba(12,28,31,.88);
  border:1px solid var(--line-weak);
  border-radius:var(--r-xl);
  padding:24px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(6px);
}
.hero-card-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.hero-card-head h2{font-size:19px;font-weight:700;}
.hero-card-head .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.hero-card p.tip{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-bottom:16px;}
.quick-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.quick-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 14px;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.quick-item:hover{border-color:rgba(52,245,208,.45);transform:translateY(-2px);}
.quick-item i{color:var(--primary);font-size:14px;margin-top:4px;}
.quick-item strong{display:block;font-size:14.5px;color:var(--text);font-weight:700;}
.quick-item span{font-size:13.5px;color:var(--text-3);line-height:1.65;}
.hero-card-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}

/* ---------- Sections ---------- */
.section{padding:72px 0;}
@media (max-width:767px){.section{padding:48px 0;}}
.section-head{margin-bottom:32px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--primary);margin-bottom:10px;
}
.sec-title{font-size:clamp(1.6rem,2.9vw,2.4rem);font-weight:700;line-height:1.28;margin-bottom:12px;}
.sec-desc{color:var(--text-2);font-size:15.6px;max-width:72ch;line-height:1.85;}

/* symptom cards */
.symptom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media (max-width:1024px){.symptom-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.symptom-grid{grid-template-columns:1fr;}}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.card:hover{
  border-color:rgba(52,245,208,.45);
  transform:translateY(-2px);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.card h3{font-size:17.5px;font-weight:700;margin-bottom:8px;line-height:1.45;}
.card p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.card-icon{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  color:var(--primary);background:rgba(52,245,208,.1);
  border:1px solid rgba(52,245,208,.24);margin-bottom:14px;font-size:15px;
}
.card-tag{
  display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;
  color:var(--coral-light);letter-spacing:.04em;
}

/* FAQ layout */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:32px;align-items:start;}
@media (max-width:1023px){.faq-layout{grid-template-columns:1fr;gap:28px;}}
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  scroll-margin-top:96px;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(52,245,208,.4);}
.faq-item.is-open{
  background:var(--panel-2);
  border-color:rgba(52,245,208,.45);
  box-shadow:var(--shadow-glow);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);min-height:56px;line-height:1.55;
}
.faq-q:hover{color:var(--primary-light);}
.faq-plus{
  flex:0 0 auto;width:26px;height:26px;display:grid;place-items:center;
  border:1px solid var(--line-weak);border-radius:8px;color:var(--primary);
  font-size:13px;transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.faq-item.is-open .faq-plus{transform:rotate(45deg);background:rgba(52,245,208,.16);border-color:rgba(52,245,208,.5);}
.faq-a{display:none;position:relative;padding:0 20px 20px 34px;}
.faq-item.is-open .faq-a{display:block;}
.faq-item.is-open .faq-a::before{
  content:"";position:absolute;left:20px;top:4px;bottom:20px;width:2px;
  background:var(--primary);border-radius:2px;
}
.faq-a p{font-size:15.2px;color:var(--text-2);line-height:1.88;}
.faq-a p + p{margin-top:10px;}
.faq-a ul{margin:10px 0 0;padding-left:18px;color:var(--text-2);font-size:14.8px;line-height:1.85;}
.faq-a li{margin-bottom:6px;}

/* help card */
.help-card{
  position:sticky;top:96px;
  background:var(--panel);
  border:1px solid var(--line-weak);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--shadow-card);
}
@media (max-width:1023px){.help-card{position:static;}}
.help-card h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.help-card > p{font-size:14px;color:var(--text-3);line-height:1.75;margin-bottom:16px;}
.help-list{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:10px;}
.help-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);
  color:var(--text-2);font-size:14.2px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.help-list a:hover{border-color:rgba(52,245,208,.5);color:var(--primary);transform:translateY(-2px);}
.help-list a i{font-size:12px;color:var(--text-3);}
.help-list a:hover i{color:var(--primary);}
.help-note{
  margin-top:16px;padding:12px 14px;border-radius:var(--r-md);
  background:rgba(255,209,102,.08);border:1px solid rgba(255,209,102,.3);
  font-size:13px;color:#FFE1A3;line-height:1.7;
}

/* steps + image */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center;}
@media (max-width:1023px){.split{grid-template-columns:1fr;gap:28px;}}
.figure{
  border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  background:var(--panel);
}
.figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .25s ease;}
.figure:hover img{transform:scale(1.03);}
.figure figcaption{font-size:12.8px;color:var(--text-3);padding:12px 16px;border-top:1px solid var(--line);}
.steps{display:grid;gap:14px;margin-top:22px;}
.step{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:rgba(52,245,208,.45);transform:translateY(-2px);}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:800;color:var(--coral);letter-spacing:.1em;flex:0 0 auto;padding-top:3px;
}
.step h4{font-size:16px;font-weight:700;margin-bottom:4px;}
.step p{font-size:14.2px;color:var(--text-2);line-height:1.75;}

/* notice */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 24px;border-radius:var(--r-lg);
  background:rgba(255,122,77,.08);border:1px solid rgba(255,122,77,.34);
}
.notice i{color:var(--coral);font-size:18px;margin-top:3px;}
.notice h4{font-size:16px;font-weight:700;margin-bottom:4px;color:#FFC7B0;}
.notice p{font-size:14.4px;color:var(--text-2);line-height:1.8;}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:56px 40px;
  text-align:center;
  background:linear-gradient(135deg,#0A181B 0%,#122A2E 100%);
  border:1px solid var(--line-weak);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 16px 16px,rgba(52,245,208,.1) 1.6px,transparent 1.7px);
  background-size:32px 32px;
  opacity:.75;
}
.cta-panel > *{position:relative;z-index:1;}
.cta-panel h2{font-size:clamp(1.5rem,2.7vw,2.2rem);font-weight:700;line-height:1.3;margin-bottom:12px;}
.cta-panel p{color:var(--text-2);font-size:15.6px;max-width:60ch;margin:0 auto 26px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
@media (max-width:640px){
  .cta-panel{padding:40px 22px;}
  .cta-actions .btn{width:100%;}
}

/* footer */
.site-footer{background:#050C0D;border-top:1px solid rgba(52,245,208,.32);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding:56px 0 40px;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 32px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:38ch;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:18px 0 28px;
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:12.6px;color:var(--text-3);line-height:1.7;
}

/* mobile bottom bar */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:50;
  background:rgba(7,17,19,.97);
  border-top:1px solid rgba(52,245,208,.32);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  backdrop-filter:blur(10px);
}
.mobile-bar .btn{width:100%;}
@media (max-width:1023px){
  .mobile-bar{display:block;}
  body.page-faq{padding-bottom:76px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
    --bg:#071113;
    --bg-2:#0A181B;
    --panel:#0C1C1F;
    --panel-2:#122A2E;
    --line:#1E3D42;
    --line-soft:#24494E;
    --primary:#34F5D0;
    --primary-deep:#0FA88F;
    --primary-light:#8DFFE9;
    --coral:#FF7A4D;
    --coral-light:#FF946E;
    --warn:#FFD166;
    --error:#FF6B6B;
    --text:#E8FFFB;
    --text-2:#B7D8D3;
    --text-3:#93B7B2;
    --ink:#061012;
    --radius-sm:8px;
    --radius-md:12px;
    --radius-lg:16px;
    --radius-xl:20px;
    --shadow:0 12px 40px rgba(0,0,0,.28);
    --shadow-glow:0 0 0 1px rgba(52,245,208,.35), 0 12px 40px rgba(0,0,0,.32);
    --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"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:1.8;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:var(--primary);text-decoration:none;transition:color .2s ease}
  a:hover{color:var(--primary-light)}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

  .shell{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
  @media (max-width:1023px){.shell{padding:0 24px}}
  @media (max-width:639px){.shell{padding:0 20px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(7,17,19,.96);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }
  .site-header::after{
    content:"";display:block;height:1px;
    background:linear-gradient(90deg,rgba(52,245,208,.85),rgba(52,245,208,.05) 70%,transparent);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
  .brand:hover{color:var(--text)}
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;
    border-radius:11px;color:var(--ink);font-size:17px;
    background:linear-gradient(140deg,var(--primary-light),var(--primary) 45%,var(--primary-deep));
    box-shadow:0 0 18px rgba(52,245,208,.32);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.14}
  .brand-top{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text)}
  .brand-bottom{font-size:11.5px;font-weight:500;letter-spacing:.14em;color:var(--primary)}
  .main-nav{margin-left:auto}
  .nav-list{display:flex;align-items:center;gap:2px}
  .nav-link{
    display:inline-flex;align-items:center;position:relative;
    padding:10px 12px;border-radius:8px;
    font-size:14.5px;font-weight:500;color:var(--text-2);
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--primary-light);background:rgba(52,245,208,.06)}
  .nav-link.is-active{color:var(--primary);font-weight:700}
  .nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 12px rgba(52,245,208,.85);
  }
  .header-cta{
    display:inline-flex;align-items:center;gap:8px;
    padding:11px 18px;border-radius:11px;
    background:var(--coral);color:var(--ink);font-size:14.5px;font-weight:700;
    white-space:nowrap;transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  }
  .header-cta:hover{background:var(--coral-light);color:var(--ink);transform:translateY(-1px);box-shadow:0 0 22px rgba(255,122,77,.4)}
  .header-cta:active{transform:translateY(0)}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line-soft);background:transparent;
    color:var(--primary);font-size:18px;cursor:pointer;
    align-items:center;justify-content:center;
  }
  .nav-toggle:hover{background:rgba(52,245,208,.08);border-color:rgba(52,245,208,.5)}
  .mobile-panel{
    display:none;border-top:1px solid var(--line);
    background:#08171A;
  }
  .mobile-panel.open{display:block}
  .mobile-panel .shell{padding-top:14px;padding-bottom:20px}
  .mobile-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .mobile-nav a{
    display:flex;align-items:center;min-height:46px;padding:10px 14px;
    border:1px solid var(--line);border-radius:10px;
    background:var(--panel);color:var(--text-2);font-size:14.5px;font-weight:500;
  }
  .mobile-nav a:hover{border-color:rgba(52,245,208,.5);color:var(--primary)}
  .mobile-nav a.is-active{color:var(--primary);border-color:rgba(52,245,208,.55);background:rgba(52,245,208,.08)}
  .mobile-cta{
    display:flex;align-items:center;justify-content:center;gap:8px;
    margin-top:14px;padding:13px 18px;border-radius:11px;
    background:var(--coral);color:var(--ink);font-weight:700;font-size:15px;
  }
  .mobile-cta:hover{background:var(--coral-light);color:var(--ink)}
  @media (max-width:1023px){
    .main-nav{display:none}
    .header-cta{display:none}
    .nav-toggle{display:inline-flex}
    .header-inner{height:66px}
  }
  @media (max-width:420px){
    .brand-bottom{letter-spacing:.08em;font-size:10.5px}
    .brand-top{font-size:14px}
  }

  /* ---------- hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    background:
      linear-gradient(135deg,rgba(7,17,19,.94) 0%,rgba(10,24,27,.9) 52%,rgba(18,42,46,.86) 100%),
      url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
    border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(52,245,208,.5) 1px,transparent 1px);
    background-size:22px 22px;opacity:.06;
  }
  .page-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
    background:linear-gradient(90deg,rgba(52,245,208,.7),transparent 65%);
  }
  .hero-inner{position:relative;z-index:2;padding:52px 0 64px}
  .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-3)}
  .crumbs a:hover{color:var(--primary)}
  .crumbs .sep{color:var(--line-soft)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    border:1px solid rgba(52,245,208,.35);background:rgba(52,245,208,.08);
    color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.06em;
    margin-bottom:20px;
  }
  .hero-title{
    font-size:clamp(2.1rem,4.6vw,3.5rem);
    font-weight:800;line-height:1.2;letter-spacing:.01em;
    max-width:20ch;
  }
  .hero-title .hl{
    color:var(--primary);
    text-shadow:0 0 24px rgba(52,245,208,.35);
  }
  .hero-sub{
    margin-top:22px;max-width:64ch;
    font-size:16.5px;line-height:1.85;color:var(--text-2);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    min-height:48px;padding:13px 24px;border-radius:11px;
    font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  }
  .btn-primary{background:var(--coral);color:var(--ink)}
  .btn-primary:hover{background:var(--coral-light);color:var(--ink);transform:translateY(-1px);box-shadow:0 0 24px rgba(255,122,77,.42)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:transparent;color:var(--primary);border-color:rgba(52,245,208,.4)}
  .btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.7);color:var(--primary-light)}
  .hero-facts{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
    margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
    max-width:760px;
  }
  .fact-num{
    font-size:26px;font-weight:800;color:var(--primary);
    font-variant-numeric:tabular-nums;line-height:1.2;
  }
  .fact-label{font-size:13px;color:var(--text-3);margin-top:4px}
  @media (max-width:639px){
    .hero-inner{padding:36px 0 46px}
    .hero-actions .btn{width:100%}
    .hero-facts{grid-template-columns:1fr 1fr;gap:14px}
  }

  /* ---------- sections ---------- */
  .section{padding:76px 0}
  .section.tight{padding:60px 0}
  .section-head{max-width:760px;margin-bottom:40px}
  .kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--primary);
    margin-bottom:14px;
  }
  .kicker::before{content:"";width:26px;height:1px;background:var(--primary);box-shadow:0 0 10px rgba(52,245,208,.8)}
  .h2{font-size:clamp(1.6rem,2.6vw,2.25rem);font-weight:700;line-height:1.28;letter-spacing:.01em}
  .section-lead{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.85;max-width:70ch}
  .divider{height:1px;background:linear-gradient(90deg,rgba(52,245,208,.55),rgba(52,245,208,.08) 55%,transparent);border:0;margin:0}
  @media (max-width:639px){.section{padding:48px 0}.section.tight{padding:40px 0}.section-head{margin-bottom:28px}}

  /* ---------- device matrix ---------- */
  .device-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  @media (max-width:1023px){.device-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media (max-width:639px){.device-grid{grid-template-columns:1fr}}
  .device-card{
    background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:24px;display:flex;flex-direction:column;gap:12px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .device-card:hover{transform:translateY(-2px);border-color:rgba(52,245,208,.45);box-shadow:var(--shadow-glow)}
  .device-icon{
    width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
    background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.28);
    color:var(--primary);font-size:18px;
  }
  .device-card h3{font-size:18px;font-weight:700;line-height:1.4}
  .device-card p{font-size:14.5px;line-height:1.75;color:var(--text-2)}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;
    border:1px solid var(--line-soft);color:var(--text-2);background:var(--bg-2);
    font-variant-numeric:tabular-nums;
  }
  .tag.ok{color:var(--primary);border-color:rgba(52,245,208,.35);background:rgba(52,245,208,.08)}
  .tag.warn{color:var(--warn);border-color:rgba(255,209,102,.35);background:rgba(255,209,102,.08)}
  .tag.coral{color:var(--coral);border-color:rgba(255,122,77,.38);background:rgba(255,122,77,.1)}

  /* ---------- compatibility table ---------- */
  .table-wrap{
    border:1px solid var(--line);border-radius:var(--radius-lg);
    background:var(--panel);overflow:hidden;
  }
  .compat-table{width:100%;border-collapse:collapse;font-size:14.5px}
  .compat-table caption{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .compat-table thead th{
    text-align:left;padding:16px 20px;font-size:13px;font-weight:700;letter-spacing:.08em;
    color:var(--primary);background:rgba(52,245,208,.06);
    border-bottom:1px solid var(--line);white-space:nowrap;
  }
  .compat-table tbody td{
    padding:16px 20px;border-bottom:1px solid rgba(30,61,66,.75);
    color:var(--text-2);vertical-align:middle;line-height:1.7;
  }
  .compat-table tbody tr:nth-child(even){background:rgba(18,42,46,.28)}
  .compat-table tbody tr:last-child td{border-bottom:0}
  .compat-table tbody tr:hover{background:rgba(52,245,208,.05)}
  .compat-table td strong{color:var(--text);font-weight:600}
  .compat-table td .num{font-variant-numeric:tabular-nums;color:var(--primary-light)}
  .compat-mobile{display:none}
  @media (max-width:767px){
    .table-wrap{display:none}
    .compat-mobile{display:grid;gap:12px}
    .compat-item{
      border:1px solid var(--line);border-radius:var(--radius-md);
      background:var(--panel);padding:16px 16px 14px;
    }
    .compat-item h4{font-size:15.5px;font-weight:700;margin-bottom:8px;color:var(--text)}
    .compat-item dl{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:0;font-size:13.5px}
    .compat-item dt{color:var(--text-3)}
    .compat-item dd{margin:0;color:var(--text-2)}
  }

  /* ---------- steps ---------- */
  .steps{display:grid;gap:0;border-left:1px solid var(--line);margin-left:6px}
  .step{position:relative;padding:0 0 30px 28px}
  .step:last-child{padding-bottom:0}
  .step::before{
    content:"";position:absolute;left:-6px;top:8px;width:11px;height:11px;border-radius:50%;
    background:var(--bg);border:2px solid var(--line-soft);
  }
  .step.is-now::before{border-color:var(--primary);background:var(--primary);box-shadow:0 0 12px rgba(52,245,208,.8)}
  .step-no{
    font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--coral);
    font-variant-numeric:tabular-nums;display:block;margin-bottom:6px;
  }
  .step h3{font-size:17.5px;font-weight:700;line-height:1.45;margin-bottom:6px}
  .step p{font-size:14.8px;line-height:1.8;color:var(--text-2);max-width:66ch}

  /* ---------- layout split ---------- */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
  @media (max-width:1023px){.split{grid-template-columns:1fr;gap:32px}}

  .panel{
    background:var(--panel);border:1px solid var(--line);
    border-radius:var(--radius-lg);padding:26px;
  }
  .panel-2{background:var(--panel-2)}
  .panel h3{font-size:19px;font-weight:700;margin-bottom:14px}
  .panel-note{font-size:14px;color:var(--text-3);line-height:1.75}

  .check-list{display:grid;gap:12px;margin-top:6px}
  .check-item{display:flex;gap:12px;align-items:flex-start}
  .check-item i{color:var(--primary);font-size:14px;margin-top:6px}
  .check-item span{font-size:15px;color:var(--text-2);line-height:1.75}
  .check-item strong{color:var(--text);font-weight:600}

  .figure-card{
    overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line);
    background:var(--panel);box-shadow:var(--shadow);
  }
  .figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
  .figure-card:hover img{transform:scale(1.03)}
  .figure-body{padding:20px 22px}
  .figure-body h3{font-size:17px;font-weight:700;margin-bottom:8px}
  .figure-body p{font-size:14.5px;color:var(--text-2);line-height:1.75}

  .alert-bar{
    display:flex;gap:14px;align-items:flex-start;
    margin-top:22px;padding:18px 20px;border-radius:var(--radius-md);
    background:rgba(255,122,77,.1);border:1px solid rgba(255,122,77,.42);
  }
  .alert-bar i{color:var(--coral);font-size:16px;margin-top:4px}
  .alert-bar p{font-size:14.5px;line-height:1.8;color:#FFD9CB}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:960px}
  .faq-list{display:grid;gap:10px;margin-top:26px}
  .faq-item{
    border:1px solid var(--line);border-radius:var(--radius-md);
    background:var(--panel);overflow:hidden;
    transition:border-color .2s ease,background .2s ease;
  }
  .faq-item:hover{border-color:rgba(52,245,208,.35)}
  .faq-item.open{background:var(--panel-2);border-color:rgba(52,245,208,.45)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
    position:relative;
  }
  .faq-q:hover{color:var(--primary-light)}
  .faq-q .plus{
    flex:0 0 22px;width:22px;height:22px;display:grid;place-items:center;
    color:var(--primary);font-size:15px;transition:transform .22s ease;
  }
  .faq-item.open .faq-q .plus{transform:rotate(45deg)}
  .faq-a{display:none;padding:0 20px 20px 20px;border-left:2px solid var(--primary);margin-left:20px}
  .faq-item.open .faq-a{display:block}
  .faq-a p{font-size:14.8px;line-height:1.85;color:var(--text-2)}

  /* ---------- CTA ---------- */
  .cta-panel{
    position:relative;overflow:hidden;
    border:1px solid rgba(52,245,208,.28);border-radius:var(--radius-xl);
    padding:52px 44px;text-align:center;
    background:
      linear-gradient(135deg,rgba(12,28,31,.97),rgba(18,42,46,.94));
  }
  .cta-panel::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(52,245,208,.6) 1px,transparent 1px);
    background-size:20px 20px;opacity:.05;
  }
  .cta-panel::after{
    content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
    width:60%;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent);
    opacity:.6;
  }
  .cta-panel h2{font-size:clamp(1.5rem,2.6vw,2.05rem);font-weight:700;line-height:1.3;position:relative;z-index:2}
  .cta-panel p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8;max-width:62ch;margin-left:auto;margin-right:auto;position:relative;z-index:2}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;position:relative;z-index:2}
  @media (max-width:639px){.cta-panel{padding:36px 22px}.cta-actions .btn{width:100%}}

  /* ---------- footer ---------- */
  .site-footer{
    background:#050C0D;border-top:1px solid transparent;
    position:relative;margin-top:0;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,rgba(52,245,208,.7),rgba(52,245,208,.1) 60%,transparent);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
    padding:60px 0 46px;
  }
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 34px}}
  @media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:26px;padding:40px 0 28px}}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-3);max-width:36ch}
  .footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{font-size:14px;color:var(--text-3)}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    padding:20px 0 26px;border-top:1px solid rgba(30,61,66,.8);
    font-size:12.5px;color:#7A9C98;font-variant-numeric:tabular-nums;
  }
  @media (max-width:639px){.footer-bottom{flex-direction:column;gap:8px;font-size:12px}}

  /* ---------- mobile sticky cta ---------- */
  .mobile-bar{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(7,17,19,.97);border-top:1px solid rgba(52,245,208,.35);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    backdrop-filter:blur(10px);
  }
  .mobile-bar a{
    display:flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;border-radius:11px;background:var(--coral);color:var(--ink);
    font-weight:700;font-size:15px;
  }
  @media (max-width:1023px){
    .mobile-bar{display:block}
    body{padding-bottom:72px}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category5 */
:root{
    --bg:#071113;
    --bg-2:#0A181B;
    --panel:#0C1C1F;
    --panel-2:#122A2E;
    --line:#1E3D42;
    --line-soft:#24494E;
    --neon:#34F5D0;
    --neon-deep:#0FA88F;
    --neon-light:#8DFFE9;
    --coral:#FF7A4D;
    --coral-light:#FF946E;
    --warn:#FFD166;
    --err:#FF6B6B;
    --text:#E8FFFB;
    --text-2:#B7D8D3;
    --text-3:#93B7B2;
    --ink:#061012;
    --r-sm:8px;
    --r-btn:12px;
    --r-card:16px;
    --r-hero:20px;
    --shadow:0 12px 40px rgba(0,0,0,.28);
    --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  ::selection{background:rgba(52,245,208,.28);color:#E8FFFB}
  .shell{width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}
  .num{font-variant-numeric:tabular-nums}

  /* ---------- 通用排版 ---------- */
  .h1{font-size:clamp(2.25rem,5vw,3.6rem);font-weight:800;line-height:1.18;letter-spacing:.01em;margin:0}
  .h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:700;line-height:1.28;margin:0}
  .h3{font-size:1.22rem;font-weight:700;line-height:1.45;margin:0}
  .lead{font-size:clamp(1rem,1.4vw,1.12rem);color:var(--text-2);line-height:1.85;margin:0}
  .muted{color:var(--text-2)}
  .faint{color:var(--text-3)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
    color:var(--neon);font-weight:700;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--neon),rgba(52,245,208,0))}
  .rule{height:1px;border:0;background:linear-gradient(90deg,var(--neon),rgba(52,245,208,0));opacity:.55;margin:0}
  .section{padding-top:76px;padding-bottom:76px}
  .section-tight{padding-top:56px;padding-bottom:56px}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,17,19,.96);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }
  .site-header::after{
    content:"";display:block;height:1px;
    background:linear-gradient(90deg,var(--neon),rgba(52,245,208,.25) 45%,rgba(52,245,208,0));
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
  .brand-mark{
    width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
    color:var(--neon);font-size:17px;
    background:linear-gradient(140deg,rgba(52,245,208,.18),rgba(52,245,208,.04));
    border:1px solid rgba(52,245,208,.42);
    box-shadow:0 0 18px rgba(52,245,208,.18);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.2}
  .brand-top{font-size:.95rem;font-weight:800;color:var(--text);letter-spacing:.02em}
  .brand-bottom{font-size:.68rem;font-weight:600;color:var(--text-3);letter-spacing:.16em}
  .main-nav{margin-left:auto}
  .nav-list{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
  .nav-link{
    position:relative;display:block;padding:10px 13px;border-radius:8px;
    font-size:.94rem;font-weight:500;color:var(--text-2);
    transition:color .18s ease,background-color .18s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(52,245,208,.07)}
  .nav-link:focus-visible{outline:2px solid var(--neon);outline-offset:3px}
  .nav-link.is-active{color:var(--neon)}
  .nav-link.is-active::after{
    content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
    background:var(--neon);box-shadow:0 0 10px rgba(52,245,208,.85);
  }
  .header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;cursor:pointer;
    border:1px solid var(--line-soft);background:rgba(12,28,31,.9);color:var(--text);
    align-items:center;justify-content:center;font-size:18px;
    transition:border-color .18s ease,color .18s ease;
  }
  .nav-toggle:hover{border-color:rgba(52,245,208,.6);color:var(--neon)}
  .nav-toggle:focus-visible{outline:2px solid var(--neon);outline-offset:2px}

  .mobile-nav{padding-bottom:20px;border-bottom:1px solid var(--line)}
  .mobile-nav[hidden]{display:none}
  .mobile-nav-list{list-style:none;margin:0;padding:16px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .mobile-link{
    display:block;padding:12px 14px;border-radius:10px;
    border:1px solid var(--line);background:rgba(12,28,31,.86);
    font-size:.95rem;color:var(--text-2);
  }
  .mobile-link:hover{color:var(--text);border-color:rgba(52,245,208,.45)}
  .mobile-link.is-active{color:var(--neon);border-color:rgba(52,245,208,.55);box-shadow:0 0 0 1px rgba(52,245,208,.2) inset}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    padding:13px 22px;border-radius:var(--r-btn);
    font-size:.95rem;font-weight:700;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  }
  .btn-sm{padding:10px 18px;font-size:.88rem}
  .btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 24px rgba(255,122,77,.22)}
  .btn-primary:hover{background:var(--coral-light);transform:translateY(-1px);box-shadow:0 0 0 4px rgba(255,122,77,.18),0 10px 26px rgba(255,122,77,.24)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:transparent;color:var(--neon);border-color:rgba(52,245,208,.4)}
  .btn-ghost:hover{background:rgba(52,245,208,.1);border-color:rgba(52,245,208,.72)}
  .btn-ghost:active{background:rgba(52,245,208,.16)}
  .btn:focus-visible{outline:2px solid var(--neon);outline-offset:3px}

  .link-more{
    display:inline-flex;align-items:center;gap:8px;color:var(--neon);
    font-weight:600;font-size:.92rem;text-decoration:underline;text-underline-offset:4px;
    text-decoration-color:rgba(52,245,208,.4);transition:color .18s ease,text-decoration-color .18s ease;
  }
  .link-more:hover{color:var(--neon-light);text-decoration-color:rgba(141,255,233,.8)}

  /* ---------- 标签 / 徽章 ---------- */
  .tag{
    display:inline-flex;align-items:center;gap:7px;
    padding:5px 11px;border-radius:999px;
    font-size:.76rem;font-weight:700;letter-spacing:.03em;
    background:rgba(52,245,208,.1);color:var(--neon);
    border:1px solid rgba(52,245,208,.35);
  }
  .tag-coral{background:rgba(255,122,77,.12);color:var(--coral-light);border-color:rgba(255,122,77,.4)}
  .tag-warn{background:rgba(255,209,102,.1);color:var(--warn);border-color:rgba(255,209,102,.35)}

  /* ---------- 卡片 ---------- */
  .card{
    background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-card);
    padding:24px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  }
  .card:hover{transform:translateY(-2px);border-color:rgba(52,245,208,.45);box-shadow:0 0 0 1px rgba(52,245,208,.35),var(--shadow)}
  .card-flat:hover{transform:none;box-shadow:none;border-color:var(--line-soft)}
  .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line)}
  .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
  .card:hover .thumb img{transform:scale(1.03)}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#071113 0%,#0A181B 58%,#0C1C1F 100%)}
  .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.42}
  .hero::after{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(circle at 18% 22%,rgba(52,245,208,.14),transparent 55%),
      linear-gradient(115deg,rgba(7,17,19,.94) 0%,rgba(7,17,19,.78) 46%,rgba(7,17,19,.9) 100%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding-top:56px;padding-bottom:72px}
  .crumb{display:flex;align-items:center;gap:9px;font-size:.82rem;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
  .crumb a:hover{color:var(--neon)}
  .crumb .sep{color:rgba(147,183,178,.5)}
  .hero h1{marign:0}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;padding-top:22px;border-top:1px solid rgba(36,73,78,.7)}
  .hero-meta div{display:flex;flex-direction:column;gap:2px}
  .hero-meta b{font-size:1.05rem;color:var(--neon);font-weight:800}
  .hero-meta span{font-size:.82rem;color:var(--text-3)}

  .entry-card{
    position:relative;background:rgba(12,28,31,.92);
    border:1px solid rgba(52,245,208,.28);border-radius:var(--r-hero);
    padding:24px;box-shadow:var(--shadow);
    backdrop-filter:blur(6px);
  }
  .entry-card::before{
    content:"";position:absolute;inset:0;border-radius:var(--r-hero);pointer-events:none;
    background:radial-gradient(circle at 100% 0%,rgba(52,245,208,.12),transparent 60%);
  }
  .entry-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
  .step-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
  .step{display:flex;gap:14px;padding:14px;border-radius:12px;border:1px solid transparent;transition:background-color .2s ease,border-color .2s ease}
  .step.is-current{background:rgba(52,245,208,.07);border-color:rgba(52,245,208,.32);box-shadow:inset 2px 0 0 var(--neon)}
  .step-no{font-size:.78rem;font-weight:800;letter-spacing:.1em;color:var(--coral);padding-top:3px}
  .step h3{font-size:.98rem;font-weight:700;margin:0 0 3px}
  .step p{margin:0;font-size:.84rem;line-height:1.7;color:var(--text-2)}
  .entry-foot{margin-top:18px;padding-top:16px;border-top:1px dashed rgba(36,73,78,.9)}

  /* ---------- 核验清单 ---------- */
  .split{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
  .check-list{list-style:none;margin:0;padding:0}
  .check-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px dashed rgba(36,73,78,.85)}
  .check-list li:last-child{border-bottom:0;padding-bottom:0}
  .check-icon{
    flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:rgba(52,245,208,.1);border:1px solid rgba(52,245,208,.34);color:var(--neon);font-size:.85rem;
  }
  .check-list h3{font-size:1.02rem;font-weight:700;margin:0 0 4px}
  .check-list p{margin:0;font-size:.9rem;line-height:1.78;color:var(--text-2)}

  /* ---------- 信息卡 ---------- */
  .info-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}
  .info-stack{display:grid;gap:24px}
  .kv{display:flex;flex-direction:column;gap:6px;font-size:.86rem;color:var(--text-3)}
  .kv b{color:var(--text);font-size:.95rem;font-weight:700}
  .pin{
    display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:8px;
    font-size:.8rem;font-weight:700;color:var(--warn);
    background:rgba(255,209,102,.08);border:1px solid rgba(255,209,102,.3);
  }

  /* ---------- 表单 ---------- */
  .form-panel{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-hero);padding:30px;box-shadow:var(--shadow)}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:.88rem;font-weight:600;color:var(--text-2)}
  .field .req{color:var(--coral);margin-left:3px}
  .field input,.field select,.field textarea{
    width:100%;background:var(--bg-2);color:var(--text);
    border:1px solid var(--line-soft);border-radius:10px;
    padding:13px 14px;font-size:.95rem;line-height:1.5;font-family:inherit;
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .field textarea{min-height:132px;resize:vertical}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3);opacity:.85}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--neon);background:#0B1E21;
    box-shadow:0 0 0 3px rgba(52,245,208,.18);
  }
  .field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(255,107,107,.14)}
  .field.is-ok input,.field.is-ok select,.field.is-ok textarea{border-color:rgba(52,245,208,.7)}
  .field-msg{font-size:.8rem;color:var(--err);min-height:18px;line-height:1.5}
  .form-note{
    margin-top:18px;padding:14px 16px;border-radius:12px;font-size:.88rem;line-height:1.7;
    border:1px solid rgba(52,245,208,.35);background:rgba(52,245,208,.08);color:var(--neon-light);
  }
  .form-note[hidden]{display:none}
  .form-note.is-err{border-color:rgba(255,107,107,.45);background:rgba(255,107,107,.1);color:#FFB3B3}
  .help-aside{background:linear-gradient(160deg,rgba(18,42,46,.9),rgba(12,28,31,.9));border:1px solid var(--line);border-radius:var(--r-card);padding:24px}
  .aside-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:12px}
  .aside-list li{display:flex;gap:10px;font-size:.88rem;line-height:1.7;color:var(--text-2)}
  .aside-list i{color:var(--neon);font-size:.78rem;padding-top:6px}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:920px;margin:0 auto;display:grid;gap:10px}
  .faq-item{border:1px solid var(--line);border-radius:12px;background:rgba(12,28,31,.75);transition:background-color .2s ease,border-color .2s ease}
  .faq-item:hover{border-color:rgba(52,245,208,.35)}
  .faq-item.open{background:var(--panel-2);border-color:rgba(52,245,208,.45);box-shadow:inset 2px 0 0 var(--neon)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:1rem;font-weight:600;color:var(--text);line-height:1.6;
  }
  .faq-q:focus-visible{outline:2px solid var(--neon);outline-offset:-2px;border-radius:12px}
  .faq-icon{
    flex:0 0 24px;width:24px;height:24px;display:grid;place-items:center;border-radius:50%;
    border:1px solid rgba(52,245,208,.45);color:var(--neon);font-size:.72rem;
    transition:transform .22s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.open .faq-a{max-height:340px}
  .faq-a p{margin:0;padding:0 20px 20px;font-size:.93rem;line-height:1.85;color:var(--text-2)}

  /* ---------- CTA ---------- */
  .cta-panel{
    position:relative;overflow:hidden;border-radius:var(--r-hero);
    border:1px solid rgba(52,245,208,.28);
    background:linear-gradient(135deg,#0C1C1F 0%,#122A2E 100%);
    padding:48px 44px;text-align:center;box-shadow:var(--shadow);
  }
  .cta-panel::before{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
    background-image:radial-gradient(circle at 12px 12px,rgba(141,255,233,.9) 1.4px,transparent 1.6px);
    background-size:26px 26px;
  }
  .cta-panel > *{position:relative;z-index:2}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#050C0D;border-top:1px solid rgba(52,245,208,.28);padding-top:56px;margin-top:8px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  .footer-brand .brand{margin-bottom:16px}
  .footer-brand p{margin:0;font-size:.88rem;line-height:1.8;color:var(--text-3);max-width:34ch}
  .footer-col h4{font-size:.86rem;font-weight:700;color:var(--text);letter-spacing:.06em;margin:0 0 14px}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
  .footer-col a{font-size:.87rem;color:var(--text-3);transition:color .18s ease}
  .footer-col a:hover{color:var(--neon)}
  .footer-col a:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:4px}
  .footer-bottom{
    margin-top:44px;padding:20px 0 26px;border-top:1px solid rgba(36,73,78,.8);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:.78rem;color:var(--text-3);line-height:1.6;
  }

  /* ---------- 移动端固定 CTA ---------- */
  .mobile-cta{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:55;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(7,17,19,.97);border-top:1px solid rgba(52,245,208,.32);
    backdrop-filter:blur(8px);
  }
  .mobile-cta .btn{width:100%;min-height:44px}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .shell{padding-left:24px;padding-right:24px}
    .main-nav{display:none}
    .nav-toggle{display:inline-flex}
    .header-actions .btn{display:none}
    .hero-inner{grid-template-columns:1fr;gap:36px;padding-top:40px;padding-bottom:56px}
    .split{grid-template-columns:1fr;gap:28px}
    .info-grid{grid-template-columns:1fr}
    .form-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .section{padding-top:56px;padding-bottom:56px}
  }
  @media (max-width:767px){
    .shell{padding-left:20px;padding-right:20px}
    .header-inner{height:64px;gap:12px}
    .brand-mark{width:36px;height:36px;border-radius:10px;font-size:15px}
    .brand-top{font-size:.86rem}
    .brand-bottom{font-size:.62rem;letter-spacing:.12em}
    .hero-inner{padding-bottom:44px}
    .hero-actions .btn{width:100%}
    .hero-meta{gap:16px}
    .cta-panel{padding:34px 22px}
    .cta-actions .btn{width:100%}
    .form-panel{padding:22px}
    .footer-grid{grid-template-columns:1fr;gap:26px}
    .footer-bottom{flex-direction:column;gap:8px}
    .mobile-cta{display:block}
    body{padding-bottom:76px}
    .section{padding-top:44px;padding-bottom:44px}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  }