/* roulang page: index */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:12px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-deep);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",Inter,"Segoe UI",ui-sans-serif,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  top:-220px;
  right:-180px;
  width:720px;
  height:720px;
  z-index:-1;
  background:radial-gradient(circle at center,rgba(23,184,201,.18),rgba(111,123,255,.10) 45%,transparent 70%);
  pointer-events:none;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid rgba(23,184,201,.22);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .3s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:28px;height:28px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  box-shadow:0 8px 22px -10px rgba(23,184,201,.9);
}
.logo-mark svg{width:17px;height:17px;}
.logo-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
  background:linear-gradient(90deg,#ffffff 20%,var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;}
.nav-link{
  position:relative;
  font-size:16px;
  color:var(--ink-2);
  padding:6px 2px;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.pill{
  border:1px solid var(--stroke);
  border-radius:999px;
  padding:6px 14px;
  color:var(--brand-2);
  font-size:15px;
}
.nav-link.pill::after{display:none;}
.nav-link.pill:hover{background:rgba(23,184,201,.10);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  min-height:44px;
  padding:0 20px;
  font-size:15px;
}
.btn svg{width:16px;height:16px;transition:transform .2s ease;}
.btn:hover svg{transform:translateX(3px);}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(23,184,201,.5),0 12px 34px -10px rgba(23,184,201,.65);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.55),0 16px 46px -12px rgba(23,184,201,.8);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,184,201,.4),0 6px 18px -10px rgba(23,184,201,.6);}
.btn-outline{
  background:transparent;
  color:var(--accent);
  box-shadow:inset 0 0 0 1px rgba(255,178,102,.75);
}
.btn-outline:hover{background:rgba(255,178,102,.12);box-shadow:inset 0 0 0 1px rgba(255,178,102,1);transform:translateY(-2px);}
.btn-ghost{
  background:transparent;color:var(--ink-2);padding:0 6px;min-height:40px;
}
.btn-ghost:hover{color:var(--brand-2);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;pointer-events:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  border-radius:12px;
  color:var(--ink);
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:3px 0;border-radius:2px;}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:80;
  visibility:hidden;
  opacity:0;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer.is-open{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,12,.7);backdrop-filter:blur(4px);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:linear-gradient(180deg,#0b1524,#080e18);
  border-left:1px solid var(--stroke);
  padding:24px 20px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .32s cubic-bezier(.22,.8,.3,1);
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-close{
  margin-left:auto;
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--stroke);
  color:var(--ink);cursor:pointer;font-size:18px;
}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin:20px 0;}
.drawer-links a{
  padding:13px 14px;border-radius:12px;color:var(--ink-2);font-size:16px;
  border:1px solid transparent;transition:.2s;
}
.drawer-links a:hover{background:rgba(23,184,201,.08);color:var(--ink);border-color:var(--stroke);}
.drawer-links a.is-active{color:var(--brand-2);background:rgba(23,184,201,.10);border-color:var(--stroke);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:12px;}
.drawer-actions .btn{width:100%;}

/* ---------- hero ---------- */
.hero{position:relative;padding:88px 0 88px;}
.hero-title{
  font-size:clamp(32px,5vw,56px);
  font-weight:900;
  line-height:1.24;
  letter-spacing:-.01em;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand-2),var(--brand) 45%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:22px;font-size:18px;color:var(--ink-2);max-width:560px;}
.badge-line{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand-2);
  background:rgba(23,184,201,.10);
  border:1px solid var(--stroke);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:22px;
}
.badge-line i{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 3px rgba(44,224,200,.18);}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.trust-row li svg{width:15px;height:15px;color:var(--brand);flex-shrink:0;}
.hero-visual{position:relative;}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(6,11,20,.42) 0%,rgba(6,11,20,.16) 46%,rgba(23,184,201,.24) 100%);
  pointer-events:none;z-index:1;
}
.hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid var(--stroke);
  filter:saturate(1.05);
}
.hero-float{
  position:absolute;right:-14px;bottom:-26px;z-index:3;
  width:min(300px,88%);
  padding:20px 22px;
}
@media (max-width:1023px){
  .hero-float{right:12px;bottom:-18px;}
}

/* ---------- glass ---------- */
.glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);
  border-top-color:rgba(255,255,255,.10);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
}
@supports not (backdrop-filter: blur(4px)){
  .glass{background:#111f31;}
}
@media (prefers-reduced-transparency: reduce){
  .glass{background:#111f31;backdrop-filter:none;}
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-raised{background:linear-gradient(180deg,rgba(13,23,38,0) 0%,rgba(13,23,38,.55) 22%,rgba(13,23,38,.55) 78%,rgba(13,23,38,0) 100%);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-title{font-size:clamp(26px,3.2vw,38px);font-weight:800;}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16px;}
.h-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}

/* ---------- pain ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.pain-card{
  background:rgba(9,16,27,.72);
  border:1px solid rgba(23,184,201,.16);
  border-radius:var(--radius-card);
  padding:26px;
  display:flex;gap:18px;
  transition:border-color .25s ease,transform .25s ease;
}
.pain-card:hover{border-color:var(--stroke);transform:translateY(-2px);}
.pain-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,178,102,.12);
  color:var(--accent);
}
.pain-icon svg{width:20px;height:20px;}
.pain-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.pain-card p{font-size:14.5px;color:var(--ink-2);}

/* ---------- solution ---------- */
.solution-grid{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start;}
.steps{position:relative;padding-left:8px;}
.step-item{display:flex;gap:18px;padding-bottom:34px;position:relative;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;width:1px;
  background:linear-gradient(180deg,var(--brand),rgba(23,184,201,0));
}
.step-item:last-child::before{display:none;}
.step-num{
  width:40px;height:40px;flex-shrink:0;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,ui-sans-serif;font-weight:700;font-size:14px;
  color:var(--brand-2);
  background:rgba(23,184,201,.10);
  border:1px solid var(--stroke);
}
.step-item h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.step-item p{font-size:14.5px;color:var(--ink-2);}
.solution-card{padding:30px;}
.solution-card img{border-radius:14px;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--stroke);}
.solution-list{margin-top:24px;display:grid;gap:14px;}
.solution-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);}
.solution-list li svg{width:18px;height:18px;color:var(--brand);flex-shrink:0;margin-top:5px;}

/* ---------- stats ---------- */
.stat-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat-item{padding:8px 24px;text-align:center;border-right:1px solid rgba(255,255,255,.08);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:clamp(30px,4vw,40px);font-weight:800;font-family:Inter,ui-sans-serif;font-variant-numeric:tabular-nums;}
.stat-num.c-brand{color:var(--brand-2);}
.stat-num.c-accent{color:var(--accent);}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-3);}
.stat-note{margin-top:26px;font-size:13.5px;color:var(--ink-3);}

/* ---------- testimonial ---------- */
.testi-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.testi-main{position:relative;padding:38px 34px;overflow:hidden;}
.testi-main::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:240px;height:240px;
  border-radius:50%;border:1px solid rgba(255,178,102,.22);
}
.quote-mark{font-family:Georgia,serif;font-size:60px;line-height:1;color:rgba(23,184,201,.5);}
.testi-main p{margin-top:6px;font-size:20px;line-height:1.75;color:var(--ink);}
.testi-person{display:flex;align-items:center;gap:14px;margin-top:26px;}
.avatar{
  width:48px;height:48px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  color:#04121a;font-weight:800;font-size:16px;
}
.testi-person strong{display:block;font-size:15px;}
.testi-person span{font-size:13.5px;color:var(--ink-3);}
.testi-side{display:grid;gap:24px;}
.testi-small{padding:26px;font-size:15px;color:var(--ink-2);}
.testi-small .testi-person{margin-top:18px;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.post-card{
  display:flex;gap:20px;
  padding:20px;
  align-items:center;
  transition:transform .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:var(--brand);}
.post-card:hover .post-title{color:var(--brand-2);}
.post-thumb{
  width:160px;height:110px;flex-shrink:0;border-radius:12px;object-fit:cover;
  border:1px solid rgba(255,255,255,.07);
}
.post-body{min-width:0;flex:1;}
.post-title{
  font-size:18px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.post-desc{
  margin-top:8px;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1;
  padding:6px 11px;border-radius:999px;
  background:rgba(23,184,201,.12);
  color:var(--brand-2);
  border:1px solid rgba(23,184,201,.22);
}
.time{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.empty-card{
  min-height:180px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  text-align:center;padding:32px;
}
.empty-card svg{width:34px;height:34px;color:var(--ink-3);}
.empty-card p{font-size:15px;color:var(--ink-2);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{overflow:hidden;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  background:transparent;border:none;color:var(--ink);
  font-size:17px;font-weight:600;text-align:left;cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-2);}
.faq-icon{
  width:24px;height:24px;flex-shrink:0;position:relative;
  transition:transform .3s ease;color:var(--brand-2);
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a-inner{
  padding:0 24px 22px 24px;
  font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;
  margin-left:0;
}
.faq-item.is-open .faq-a-inner{border-left-color:var(--brand);}
.faq-item.is-open{background:rgba(19,32,50,.72);}
.faq-item.is-open{border-color:var(--stroke);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  padding:52px 44px;
  overflow:hidden;
  text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 20%,rgba(23,184,201,.20),transparent 55%),
             radial-gradient(circle at 82% 78%,rgba(111,123,255,.20),transparent 55%);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(24px,3vw,34px);}
.cta-band p{position:relative;margin-top:16px;color:var(--ink-2);max-width:640px;margin-left:auto;margin-right:auto;}
.cta-btns{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:24px;
  border-top:1px solid rgba(255,255,255,.06);
  background:linear-gradient(180deg,rgba(13,23,38,.7),rgba(6,11,20,.95));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand) 22%,var(--violet) 62%,transparent);
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1.2fr 1.2fr;gap:36px;
  padding:66px 0 44px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--ink-2);max-width:330px;}
.footer-title{font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:var(--ink-3);transition:color .2s ease;}
.footer-links a:hover{color:var(--brand-2);}
.footer-contact li{font-size:14.5px;color:var(--ink-3);display:flex;gap:10px;margin-bottom:12px;}
.footer-contact svg{width:16px;height:16px;color:var(--brand);flex-shrink:0;margin-top:5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13.5px;color:var(--ink-3);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);
  backdrop-filter:blur(14px);
  border:1px solid var(--stroke);
  color:var(--brand-2);
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,box-shadow .3s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{box-shadow:0 0 0 1px rgba(23,184,201,.5),0 14px 38px -12px rgba(23,184,201,.8);}
.to-top svg{width:20px;height:20px;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-outline{display:none;}
  .solution-grid{grid-template-columns:1fr;}
  .testi-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero{padding:64px 0 72px;}
  .hero-visual{margin-top:40px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .container,.container-wide{padding:0 20px;}
  .pain-grid{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px;}
  .stat-item{border-right:none;padding:4px 12px;}
  .stat-item:nth-child(odd){border-right:1px solid rgba(255,255,255,.08);}
  .post-card{flex-direction:column;align-items:flex-start;}
  .post-thumb{width:100%;height:170px;}
  .cta-band{padding:38px 22px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
  .to-top{width:44px;height:44px;right:18px;bottom:18px;}
  .testi-main p{font-size:17px;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-btns .btn{width:100%;}
  .trust-row{gap:14px;}
}

/* roulang page: article */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
  --font-cn:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,"Segoe UI",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink);
  text-align:left;
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(23,184,201,.18), rgba(111,123,255,.12) 45%, rgba(6,11,20,0) 72%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, 24px 24px, 24px 24px;
  background-repeat:no-repeat, repeat, repeat;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
::selection{background:rgba(23,184,201,.35);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .2s ease}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(23,184,201,.5),0 12px 34px -10px rgba(23,184,201,.65);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.6),0 16px 46px -10px rgba(23,184,201,.8)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,184,201,.5),0 6px 18px -8px rgba(23,184,201,.6)}
.btn-outline{background:transparent;color:var(--accent);border-color:rgba(255,178,102,.55)}
.btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.9);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink-2);padding:0 6px}
.btn-ghost:hover{color:var(--brand)}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-sm{height:38px;font-size:14px;padding:0 16px;border-radius:10px}
.btn-lg{height:50px;font-size:16px;padding:0 26px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.88);
  border-bottom-color:rgba(23,184,201,.22);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-wrap{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 20px -8px rgba(23,184,201,.9);
}
.logo-mark svg{width:17px;height:17px}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.pill{
  border:1px solid var(--stroke);border-radius:999px;padding:7px 14px;
  background:rgba(23,184,201,.08);color:var(--brand-2);
}
.nav-link.pill::after{display:none}
.nav-link.pill:hover{background:rgba(23,184,201,.16);border-color:rgba(23,184,201,.5)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--stroke);background:rgba(19,32,50,.6);
  flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle:hover{border-color:rgba(23,184,201,.55)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,13,.66);z-index:79;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
  background:rgba(9,16,28,.97);
  border-left:1px solid var(--stroke);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:26px 22px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--stroke);
  background:transparent;cursor:pointer;font-size:18px;line-height:1;color:var(--ink-2);
}
.drawer-close:hover{color:var(--ink);border-color:rgba(23,184,201,.5)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-link{
  display:block;padding:12px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
}
.drawer-link:hover{background:rgba(23,184,201,.1);color:var(--ink)}
.drawer-link.is-active{background:rgba(23,184,201,.14);color:var(--brand-2);font-weight:600}
.drawer-actions{display:flex;flex-direction:column;gap:12px}
.drawer-actions .btn{width:100%}

/* ============ 文章页主体 ============ */
.crumbs{margin:26px 0 0;font-size:14px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumbs a{color:var(--ink-3);transition:color .2s ease}
.crumbs a:hover{color:var(--brand-2)}
.crumbs .sep{color:rgba(109,130,150,.7)}
.crumbs .current{color:var(--ink)}

.article-hero{padding:26px 0 0}
.article-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-2);background:rgba(23,184,201,.12);
  border:1px solid var(--stroke);border-radius:999px;padding:5px 13px;
}
.article-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2)}
.article-title{
  margin:18px 0 0;
  font-size:clamp(28px,3.4vw,38px);
  font-weight:900;line-height:1.32;letter-spacing:-.005em;color:var(--ink);
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:18px;font-size:14px;color:var(--ink-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(109,130,150,.6)}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.article-divider{
  height:1px;margin:26px 0 0;
  background:linear-gradient(90deg,rgba(23,184,201,.8),rgba(111,123,255,.45) 45%,rgba(6,11,20,0));
}

.article-wrap{position:relative;padding-top:44px;padding-bottom:20px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:40px;max-width:760px;margin:0 auto;
}
.article-layout.has-toc{grid-template-columns:minmax(0,1fr) 220px;max-width:1044px}
.article-toc{display:none}
.article-layout.has-toc .article-toc{
  display:block;align-self:start;position:sticky;top:96px;
  background:var(--glass);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.1);
  border-radius:var(--r-md);padding:18px 16px;box-shadow:var(--shadow-card);
}
.toc-title{font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.06em;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:12px;line-height:1.6;color:var(--ink-3);
  padding:6px 8px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc-list a:hover{color:var(--brand-2);border-left-color:var(--brand);background:rgba(23,184,201,.08)}

.article-body{font-size:16px;line-height:1.8;color:var(--ink-2)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:24px;font-weight:800;line-height:1.42;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--brand);
  scroll-margin-top:100px;
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;color:var(--ink);margin:32px 0 14px;scroll-margin-top:100px}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0;padding-left:2px}
.article-body li::marker{color:var(--brand)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body a{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:3px solid var(--brand);
  background:rgba(23,184,201,.07);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-style:italic;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;background:rgba(23,184,201,.12);color:var(--brand-2);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  margin:24px 0;padding:18px;border-radius:var(--r-sm);
  background:#08111d;border:1px solid rgba(255,255,255,.08);
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:var(--ink-2);padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{border:1px solid rgba(255,255,255,.09);padding:10px 14px;text-align:left}
.article-body th{background:rgba(23,184,201,.12);color:var(--ink);font-weight:700}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body hr{margin:36px 0;border:none;height:1px;background:rgba(255,255,255,.09)}

.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  min-height:220px;padding:40px 28px;text-align:center;
  background:var(--glass);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.1);
  border-radius:var(--r-lg);box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(23,184,201,.12);border:1px solid var(--stroke);
}
.empty-state .empty-icon svg{width:24px;height:24px;stroke:var(--brand)}
.empty-state p{color:var(--ink-2);font-size:15px}

.article-footer{margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.08)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag{
  font-size:12px;color:var(--brand-2);background:rgba(23,184,201,.1);
  border:1px solid var(--stroke);border-radius:999px;padding:5px 13px;
  transition:background .2s ease,border-color .2s ease;
}
.tag:hover{background:rgba(23,184,201,.2);border-color:rgba(23,184,201,.55)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px}
.copy-tip{font-size:13px;color:var(--brand-2);min-height:18px}

.section-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-title{font-size:26px;font-weight:800;color:var(--ink);line-height:1.4}
.section-sub{margin-top:8px;font-size:14px;color:var(--ink-3)}

.rel-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--glass);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.1);
  border-radius:var(--r-md);padding:14px;
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  transition:transform .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,184,201,.6)}
.rel-thumb{width:100%;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;position:relative;background:var(--bg-raised)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.15),rgba(6,11,20,.6))}
.rel-title{font-size:16px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-title{color:var(--brand-2)}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);font-family:var(--font-num);font-variant-numeric:tabular-nums}
.rel-cat{font-family:var(--font-cn);font-size:12px;color:var(--brand-2);background:rgba(23,184,201,.12);border-radius:999px;padding:3px 10px}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* ============ 页脚 ============ */
.site-footer{position:relative;margin-top:88px;background:rgba(8,14,24,.86)}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(23,184,201,.85),rgba(111,123,255,.7) 55%,rgba(6,11,20,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
  padding:60px 0 40px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-3);max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--ink-3);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--brand-2);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-3);line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:4px;stroke:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;
  font-size:13px;color:var(--ink-3);
}
.footer-bottom p{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--stroke);color:var(--ink-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease,box-shadow .26s ease,color .2s ease;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{color:var(--brand-2);box-shadow:0 0 0 1px rgba(23,184,201,.5),0 16px 40px -12px rgba(23,184,201,.75)}
.back-top svg{width:20px;height:20px}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .article-layout.has-toc{grid-template-columns:minmax(0,1fr);max-width:760px}
  .article-toc{display:none !important}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-outline.btn-sm{display:none}
  .container,.container-wide{padding:0 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:48px 0 32px}
  .rel-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .section-block{margin-top:48px}
  .section-title{font-size:22px}
  .article-title{font-size:26px}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .rel-list{grid-template-columns:minmax(0,1fr)}
  .back-row{flex-direction:column}
  .back-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .back-top{width:44px;height:44px;right:16px;bottom:16px}
  .article-meta{gap:8px 14px;font-size:13px}
}
@media (prefers-reduced-transparency:reduce){
  .rel-card,.article-toc,.empty-state,.back-top,.mobile-drawer{
    -webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(13,23,38,.96);
  }
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .rel-card,.article-toc,.empty-state,.back-top,.mobile-drawer{background:rgba(13,23,38,.96)}
}

/* roulang page: category1 */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:12px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
  --maxw:1200px;
  --maxw-wide:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-deep);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(760px 520px at 88% -6%,rgba(23,184,201,.18),rgba(111,123,255,.10) 42%,transparent 70%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.container-wide{max-width:var(--maxw-wide)}
.num{font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.88);
  border-bottom-color:rgba(23,184,201,.22);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-wrap{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:.01em;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-2),var(--brand));
  box-shadow:0 8px 22px -10px rgba(23,184,201,.9);
}
.logo-mark svg{width:18px;height:18px}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-link{position:relative;color:var(--ink-2);font-size:16px;padding:6px 2px;transition:color .2s ease;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.pill{
  padding:7px 16px;border:1px solid var(--stroke);border-radius:999px;
  color:var(--brand-2);background:rgba(23,184,201,.08);
}
.nav-link.pill::after{display:none}
.nav-link.pill:hover{background:rgba(23,184,201,.16);color:#fff}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn-md{height:48px;padding:0 24px;font-size:16px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(23,184,201,.5),0 12px 34px -10px rgba(23,184,201,.65);
}
.btn-primary:hover{
  transform:translateY(-2px);filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(23,184,201,.6),0 16px 46px -10px rgba(23,184,201,.85);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 0 0 1px rgba(23,184,201,.45),0 6px 18px -10px rgba(23,184,201,.6);
}
.btn-outline{border-color:var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.9)}
.btn-ghost{color:var(--brand-2);background:transparent;padding:0 4px;height:auto}
.btn-ghost svg{transition:transform .22s ease}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-ghost:hover{color:#fff}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;filter:none;transform:none}
.w-full{width:100%}

/* ---------- 移动端抽屉 ---------- */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--stroke);background:rgba(255,255,255,.04);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
  transition:background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle:hover{background:rgba(23,184,201,.14)}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(360px,86vw);
  background:linear-gradient(180deg,rgba(13,23,38,.98),rgba(6,11,20,.99));
  border-left:1px solid var(--stroke);z-index:90;padding:24px;
  display:flex;flex-direction:column;gap:20px;overflow-y:auto;
  transform:translateX(104%);transition:transform .32s cubic-bezier(.4,0,.2,1);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head .logo-text{font-size:15px;font-weight:800}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--stroke);
  background:rgba(255,255,255,.04);color:var(--ink);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:rgba(23,184,201,.16)}
.drawer-links{display:grid;gap:4px}
.drawer-links a{
  display:block;padding:13px 14px;border-radius:12px;color:var(--ink-2);font-size:16px;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer-links a:hover{background:rgba(23,184,201,.10);color:var(--ink);border-color:var(--stroke)}
.drawer-links a.is-active{color:var(--brand-2);background:rgba(23,184,201,.12);border-color:var(--stroke);font-weight:600}
.drawer-actions{display:grid;gap:12px;margin-top:auto}
.nav-overlay{
  position:fixed;inset:0;background:rgba(3,7,12,.62);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:28px 0 4px}
.breadcrumb a{color:var(--ink-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:rgba(109,130,150,.7)}
.breadcrumb .current{color:var(--ink)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;z-index:1}
.section-tight{padding:56px 0}
.section-head{max-width:780px;margin-bottom:44px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;
  color:var(--brand-2);background:rgba(23,184,201,.12);border:1px solid var(--stroke);
  border-radius:999px;padding:6px 14px;
}
.section-head h2{font-size:clamp(26px,3.4vw,38px);margin:16px 0 12px}
.section-head p{color:var(--ink-2);font-size:16px}
.lead{max-width:900px;color:var(--ink-2);font-size:17px;line-height:1.9}
.divider{height:1px;border:0;background:linear-gradient(90deg,rgba(23,184,201,.5),rgba(111,123,255,.25),transparent);margin:0}

/* ---------- Hero ---------- */
.page-hero{padding:24px 0 72px;position:relative;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;
  color:var(--brand-2);background:rgba(23,184,201,.12);border:1px solid var(--stroke);
  border-radius:999px;padding:6px 14px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2)}
.hero-title{font-size:clamp(30px,4.2vw,46px);font-weight:900;margin:20px 0 16px;line-height:1.22}
.hero-sub{color:var(--ink-2);font-size:17px;max-width:560px;margin-bottom:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;list-style:none}
.trust-row li{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.trust-row li svg{width:14px;height:14px;color:var(--brand-2)}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,11,20,.35),rgba(6,11,20,.15) 45%,rgba(23,184,201,.28) 100%);
}
.hero-media figcaption{
  position:absolute;left:18px;bottom:14px;z-index:2;font-size:13px;color:rgba(234,242,248,.85);
}
.hero-float{
  position:absolute;right:-8px;bottom:-24px;z-index:3;padding:18px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--stroke);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;gap:22px;
}
.hero-float .kv{min-width:78px}
.hero-float .kv b{display:block;font-size:22px;color:var(--accent);font-family:Inter,ui-sans-serif;font-variant-numeric:tabular-nums}
.hero-float .kv span{font-size:12px;color:var(--ink-3)}

/* ---------- 玻璃卡 ---------- */
.glass-card{
  position:relative;background:var(--glass);border:1px solid var(--stroke);
  border-radius:var(--radius-card);padding:28px;
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;border-radius:16px 16px 0 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass-card,.hero-float,.stat-bar,.nav-drawer{background:#0f1c2c}
}

/* ---------- 图文交替 ---------- */
.feature-row{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;margin-bottom:88px}
.feature-row:last-child{margin-bottom:0}
.feature-body h3{font-size:clamp(20px,2.4vw,26px);margin-bottom:14px}
.feature-body p{color:var(--ink-2);font-size:15.5px;margin-bottom:20px}
.feature-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);background:var(--bg-raised);
}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,11,20,.2),rgba(6,11,20,.55) 68%,rgba(6,11,20,.88));
}
.feature-media figcaption{position:absolute;left:18px;bottom:14px;z-index:2;font-size:13px;color:var(--ink-2)}
.check-list{list-style:none;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--ink-2);font-size:15.5px}
.check-list li svg{flex:0 0 18px;width:18px;height:18px;margin-top:6px;color:var(--brand-2)}
.step-list{list-style:none;display:grid;gap:16px;counter-reset:step}
.step-list li{position:relative;padding-left:56px;color:var(--ink-2);font-size:15.5px}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;background:rgba(23,184,201,.12);border:1px solid var(--stroke);
  color:var(--brand-2);font-size:13px;font-weight:700;font-family:Inter,ui-monospace,monospace;
}
.step-list li b{color:var(--ink);display:block;font-weight:700;margin-bottom:2px}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(3,1fr);border-radius:var(--radius-lg);overflow:hidden;
  background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.stat-item{padding:36px 28px;text-align:center}
.stat-item + .stat-item{border-left:1px solid rgba(23,184,201,.18)}
.stat-num{font-size:40px;font-weight:800;line-height:1.1;color:var(--accent);font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-num.teal{color:var(--brand-2)}
.stat-label{font-size:14px;color:var(--ink-2);margin-top:8px}
.stat-note{margin-top:16px;font-size:14px;color:var(--ink-3)}

/* ---------- 自查清单 ---------- */
.audit-list{display:grid;gap:14px}
.audit-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;
  padding:20px 24px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.03);border:1px solid rgba(23,184,201,.16);
  transition:border-color .22s ease,transform .22s ease,background .22s ease;
}
.audit-item:hover{border-color:rgba(23,184,201,.45);transform:translateY(-3px);background:rgba(23,184,201,.06)}
.audit-item .idx{font-family:Inter,ui-monospace,monospace;font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.audit-item h4{font-size:17px;font-weight:700;margin-bottom:4px;color:var(--ink)}
.audit-item p{font-size:14.5px;color:var(--ink-3);margin:0}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--stroke);
  background:linear-gradient(135deg,rgba(13,23,38,.94),rgba(19,32,50,.78));
  padding:64px 48px;text-align:center;box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;left:-10%;right:-10%;top:-60%;height:620px;pointer-events:none;
  background:radial-gradient(circle at 28% 42%,rgba(23,184,201,.30),transparent 58%),
             radial-gradient(circle at 74% 34%,rgba(111,123,255,.26),transparent 60%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);margin-bottom:14px}
.cta-band p{color:var(--ink-2);max-width:640px;margin:0 auto 28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;margin-top:40px;background:rgba(8,14,24,.86);border-top:1px solid rgba(23,184,201,.16)}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,184,201,.7),rgba(111,123,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px}
.footer-brand p{color:var(--ink-3);font-size:14px;margin-top:18px;max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--ink-3);font-size:14.5px;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--brand-2)}
.footer-contact{list-style:none;display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-3);font-size:14px}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:6px;color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.06);padding:22px 0 34px;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--ink-3)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;z-index:70;
  background:var(--glass);border:1px solid var(--stroke);color:var(--brand-2);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,box-shadow .25s ease,color .25s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:#fff;box-shadow:0 0 0 1px rgba(23,184,201,.5),0 14px 40px -12px rgba(23,184,201,.85)}
.to-top:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.to-top svg{width:20px;height:20px}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .feature-row{grid-template-columns:1fr 1fr;gap:64px}
  .feature-row.reverse .feature-media{order:2}
  .feature-row.reverse .feature-body{order:1}
}
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
}
@media (min-width:1081px){
  .nav-drawer{display:none}
}
@media (max-width:980px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:820px){
  .nav-actions .btn-outline{display:none}
  .section{padding:56px 0}
  .page-hero{padding:16px 0 48px}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto;justify-content:space-between}
  .cta-band{padding:44px 24px}
}
@media (max-width:768px){
  .stat-bar{grid-template-columns:1fr}
  .stat-item + .stat-item{border-left:0;border-top:1px solid rgba(23,184,201,.18)}
  .stat-num{font-size:34px}
  .audit-item{grid-template-columns:1fr;gap:6px}
  .to-top{width:44px;height:44px;right:16px;bottom:16px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .logo-text{font-size:15px}
  .logo-mark{width:26px;height:26px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .trust-row{gap:14px}
  .feature-row{margin-bottom:56px}
}

/* roulang page: category2 */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:12px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
  --font-cn:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-num:Inter,"Segoe UI",ui-sans-serif,system-ui;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.8;letter-spacing:.01em;
  color:var(--ink);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(23,184,201,.18), rgba(111,123,255,.10) 45%, transparent 72%),
    linear-gradient(to right, rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,24px 24px,24px 24px;
  background-repeat:no-repeat,repeat,repeat;
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,opacity .2s ease}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);line-height:1.28;color:var(--ink)}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{max-width:1280px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,height .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--stroke);background:rgba(6,11,20,.9)}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-wrap{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;
  box-shadow:0 8px 22px -10px rgba(23,184,201,.9);
}
.logo-mark svg{width:18px;height:18px}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:9px 11px;border-radius:10px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.pill{
  border:1px solid var(--stroke);border-radius:999px;color:var(--brand-2);
  padding:7px 14px;background:rgba(23,184,201,.07);
}
.nav-link.pill::after{display:none}
.nav-link.pill:hover{background:rgba(23,184,201,.15);color:var(--brand-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:0 0 16px;transition:transform .22s ease}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(23,184,201,.5),0 12px 34px -10px rgba(23,184,201,.65);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.6),0 16px 46px -10px rgba(23,184,201,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,184,201,.45),0 8px 20px -12px rgba(23,184,201,.6)}
.btn-outline{border-color:var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.85);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink-2);padding:0 6px}
.btn-ghost:hover{color:var(--brand)}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}
.btn-lg{min-height:52px;padding:0 26px;font-size:16px}

.nav-toggle{
  display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border:1px solid var(--stroke);border-radius:12px;background:rgba(255,255,255,.03);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s 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)}

/* ---------- 通用组件 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--brand-2);text-transform:uppercase;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--stroke);background:rgba(23,184,201,.08);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(23,184,201,.9)}
h1.display{
  font-size:clamp(32px,5vw,56px);font-weight:900;letter-spacing:-.01em;line-height:1.18;
}
h2.h-sec{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.005em}
h3.h-card{font-size:22px;font-weight:700}
h4.h-mini{font-size:18px;font-weight:700}
.lead{color:var(--ink-2);font-size:17px;line-height:1.8}
.muted{color:var(--ink-3);font-size:14px}
.glass-card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);
  border-top-color:rgba(255,255,255,.10);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:28px;
}
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .glass-card{background:rgba(13,23,38,.94)}
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--brand-2);background:rgba(23,184,201,.12);
  border-radius:999px;padding:5px 12px;
}
.chip-accent{color:var(--accent);background:rgba(255,178,102,.12)}
.divider{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(23,184,201,.45),rgba(111,123,255,.3),transparent)}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:24px 0 0}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(109,130,150,.8)}
.breadcrumb .current{color:var(--ink)}

/* ---------- Hero ---------- */
.hero{padding:48px 0 72px}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center}
.hero-copy .display{margin:20px 0 18px}
.hero-sub{font-size:18px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 26px}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--ink-3)}
.trust-row span{display:inline-flex;align-items:center;gap:7px}
.trust-row i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow-card)}
.hero-visual img{width:100%;height:420px;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.42) 0%,rgba(6,11,20,.18) 42%,rgba(6,11,20,.88) 100%);
}
.float-card{
  position:absolute;right:-14px;bottom:-18px;z-index:2;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.12);
  border-radius:16px;padding:16px 18px;box-shadow:var(--shadow-card);
  min-width:300px;
}
.float-card .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:800;color:var(--accent);line-height:1.1}
.float-card .lbl{font-size:12px;color:var(--ink-3);margin-top:4px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:38px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:13px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(111,123,255,.4),rgba(111,123,255,0));
}
.tl-item{position:relative;padding:0 0 30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:8px;width:26px;height:26px;border-radius:50%;
  background:var(--bg-raised);border:2px solid var(--brand);
  box-shadow:0 0 0 5px rgba(23,184,201,.10);
}
.tl-item .tl-step{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);display:block;margin-bottom:6px;
}
.tl-item h3{font-size:19px;font-weight:700;margin-bottom:6px}
.tl-item p{font-size:15px;color:var(--ink-2);line-height:1.75}

.sticky-card{position:sticky;top:96px}
.aside-img{border-radius:14px;overflow:hidden;border:1px solid var(--stroke);margin-bottom:20px}
.aside-img img{width:100%;height:190px;object-fit:cover}
.point-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:14px;margin:0}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.75}
.point-list .idx{
  flex:0 0 24px;width:24px;height:24px;border-radius:8px;margin-top:3px;
  background:linear-gradient(135deg,rgba(23,184,201,.9),rgba(44,224,200,.85));
  color:#04121a;font-family:var(--font-num);font-size:12px;font-weight:800;
  display:grid;place-items:center;
}

/* ---------- 自查卡 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.check-card{background:rgba(13,23,38,.72);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.08);border-radius:var(--radius-card);padding:26px;transition:transform .25s ease,border-color .25s ease}
.check-card:hover{transform:translateY(-3px);border-color:var(--brand)}
.check-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(23,184,201,.12);border:1px solid var(--stroke);color:var(--brand-2);
}
.check-icon svg{width:20px;height:20px}
.check-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.check-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--glass);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.10);
  border-radius:var(--radius-card);overflow:hidden;transition:border-color .22s ease;
}
.faq-item:hover{border-color:rgba(23,184,201,.5)}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q .plus{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;
  border:1px solid var(--stroke);color:var(--brand-2);font-size:16px;line-height:1;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] .faq-q .plus{transform:rotate(45deg);background:rgba(23,184,201,.14)}
.faq-a{
  padding:0 22px 22px 25px;font-size:15.5px;color:var(--ink-2);line-height:1.8;
  border-left:3px solid var(--brand);margin-left:22px;
  animation:fadeUp .3s ease both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:52px 44px;text-align:center;
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.12);box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto -10%;height:320px;
  background:radial-gradient(closest-side,rgba(23,184,201,.28),rgba(111,123,255,.16),transparent 72%);
  pointer-events:none;
}
.cta-band > *{position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:72px;
  background:linear-gradient(180deg,rgba(13,23,38,.6),rgba(6,11,20,.96));
  border-top:1px solid var(--stroke);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,184,201,.9),rgba(111,123,255,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px}
.footer-brand p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-top:16px;max-width:340px}
.footer-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-2)}
.footer-links a:hover{color:var(--brand-2)}
.footer-contact{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.65}
.footer-contact svg{width:18px;height:18px;flex:0 0 18px;color:var(--brand);margin-top:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding:20px 0 34px;border-top:1px solid rgba(168,188,205,.14);
  font-size:13px;color:var(--ink-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
  background:var(--glass);backdrop-filter:blur(14px);border:1px solid var(--stroke);
  color:var(--brand-2);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,box-shadow .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{box-shadow:0 0 0 1px rgba(23,184,201,.6),0 14px 40px -12px rgba(23,184,201,.8)}
.to-top svg{width:20px;height:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container-wide{max-width:1200px}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:72px;right:0;bottom:0;width:min(84vw,340px);
    margin-left:0;flex-direction:column;align-items:stretch;gap:4px;
    padding:22px;background:rgba(8,15,26,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-left:1px solid var(--stroke);
    transform:translateX(104%);transition:transform .28s ease;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link:hover,.nav-link.is-active{background:rgba(23,184,201,.10)}
  .nav-link.pill{margin-top:8px;text-align:center}
  .nav-toggle{display:flex}
  .nav-actions .btn-outline{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual img{height:340px}
  .float-card{right:14px;bottom:14px;min-width:0;width:calc(100% - 28px);grid-template-columns:repeat(3,minmax(0,1fr))}
  .check-grid{grid-template-columns:1fr;gap:18px}
  .sticky-card{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .hero{padding:32px 0 52px}
  .hero-sub{font-size:16.5px}
  .glass-card{padding:22px}
  .cta-band{padding:36px 22px}
  .timeline{padding-left:32px}
  .tl-item::before{left:-32px;width:22px;height:22px}
  .timeline::before{left:10px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a{margin-left:16px;padding:0 16px 18px 18px;font-size:15px}
}
@media (max-width:639px){
  .container,.container-wide{padding:0 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .hero-visual img{height:240px}
  .float-card{grid-template-columns:1fr 1fr;gap:12px}
  .btn{width:100%}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .nav-actions .btn-primary{width:auto;padding:0 14px}
  .to-top{width:44px;height:44px;right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-glow:0 0 0 1px rgba(23,184,201,.5), 0 12px 34px -10px rgba(23,184,201,.65);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(23,184,201,.18), rgba(111,123,255,.10) 44%, transparent 72%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, 24px 24px, 24px 24px;
  background-attachment:fixed;
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",Inter,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
h1{font-size:clamp(32px,5vw,52px);font-weight:900;line-height:1.22;letter-spacing:-.01em;}
h2{font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.3;}
h3{font-size:22px;font-weight:700;line-height:1.45;}
h4{font-size:18px;font-weight:700;line-height:1.5;}
::selection{background:rgba(23,184,201,.35);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:56px 0;}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-2);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px;}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:2px;}
.section-head p.lead{color:var(--ink-2);max-width:760px;margin-top:12px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(16px) saturate(130%);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.95);
  border-bottom-color:rgba(23,184,201,.18);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;padding-top:10px;padding-bottom:10px;}
.logo{display:inline-flex;align-items:center;gap:10px;min-width:0;}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px -8px rgba(23,184,201,.8);
}
.logo-mark svg{width:18px;height:18px;}
.logo-text{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 10px;border-radius:10px;
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:color .22s ease, background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.pill{
  border:1px solid var(--stroke);border-radius:999px;padding:7px 14px;
  color:var(--brand-2);
}
.nav-link.pill::after{display:none;}
.nav-link.pill:hover{border-color:rgba(23,184,201,.5);background:rgba(23,184,201,.08);}
.nav-actions{display:flex;align-items:center;gap:10px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  padding:14px 22px;min-height:44px;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease, filter .22s ease;
}
.btn svg{width:16px;height:16px;}
.btn-sm{padding:11px 18px;font-size:14px;min-height:38px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.5),0 16px 46px -10px rgba(23,184,201,.8);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(23,184,201,.4),0 8px 20px -10px rgba(23,184,201,.6);}
.btn-outline{border:1px solid var(--accent);color:var(--accent);background:transparent;}
.btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.9);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink-2);padding:10px 0;}
.btn-ghost svg{transition:transform .22s ease;}
.btn-ghost:hover{color:var(--brand-2);}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:10px;}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:22px 0 0;}
.crumb a:hover{color:var(--brand-2);}
.crumb .sep{color:rgba(109,130,150,.7);}
.crumb .now{color:var(--ink);}

/* ============ Hero ============ */
.hero{padding:52px 0 72px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;color:var(--brand-2);
  background:rgba(23,184,201,.10);border:1px solid var(--stroke);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2);}
.hero h1 span.hl{
  background:linear-gradient(120deg,var(--brand),var(--brand-2) 55%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .sub{color:var(--ink-2);font-size:17px;margin-top:20px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--ink-2);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  padding:6px 12px;border-radius:999px;
}
.tag i{color:var(--brand-2);font-size:12px;}

.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--stroke);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.42),rgba(6,11,20,.15) 45%,rgba(6,11,20,.85)),
             linear-gradient(0deg,rgba(23,184,201,.28),transparent 55%);
}
.hero-float{
  position:absolute;right:-14px;bottom:-22px;width:min(268px,80%);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.10);
  border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--shadow-card);
}
.hero-float .row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;}
.hero-float .num{font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;font-size:26px;font-weight:800;color:var(--accent);}
.hero-float .lbl{font-size:12.5px;color:var(--ink-3);}
.hero-float .div{height:1px;background:rgba(255,255,255,.08);margin:12px 0;}

/* ============ 玻璃卡通用 ============ */
.glass{
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.10);
  border-radius:var(--r-md);box-shadow:var(--shadow-card);
}

/* ============ 筛选徽章行 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:16px 18px;margin-bottom:34px;
}
.filter-bar .label{font-size:13px;color:var(--ink-3);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--ink-2);
  border:1px solid rgba(255,255,255,.10);border-radius:999px;
  padding:8px 16px;background:rgba(255,255,255,.03);
  transition:all .22s ease;cursor:default;
}
.chip:hover{color:var(--ink);border-color:rgba(23,184,201,.45);background:rgba(23,184,201,.08);}
.chip.is-on{
  color:#04121a;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border-color:transparent;box-shadow:0 10px 26px -12px rgba(23,184,201,.9);
}

/* ============ 卡片墙 ============ */
.wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.wall-card{
  display:flex;flex-direction:column;gap:14px;
  padding:26px 24px 24px;
  transition:transform .26s ease, border-color .26s ease, box-shadow .26s ease;
}
.wall-card:hover{transform:translateY(-4px);border-color:rgba(23,184,201,.55);}
.wall-ico{
  width:44px;height:44px;border-radius:13px;flex:0 0 44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(23,184,201,.12);border:1px solid var(--stroke);
  color:var(--brand-2);font-size:18px;
}
.wall-card h3{font-size:19px;}
.wall-card p{font-size:14.5px;color:var(--ink-2);}
.wall-card .meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;}
.pill-badge{
  font-size:12px;color:var(--brand-2);
  background:rgba(23,184,201,.12);border-radius:999px;padding:4px 11px;
}
.wall-media{
  border-radius:var(--r-sm);overflow:hidden;height:146px;position:relative;
  border:1px solid rgba(255,255,255,.07);
}
.wall-media img{width:100%;height:100%;object-fit:cover;}
.wall-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.15),rgba(6,11,20,.72));}
.wall-card:nth-child(2),
.wall-card:nth-child(5){padding:30px 26px 28px;}
.wall-card:nth-child(2) .wall-media,
.wall-card:nth-child(5) .wall-media{height:206px;}
.wall-card:nth-child(2) .wall-ico,
.wall-card:nth-child(5) .wall-ico{background:rgba(255,178,102,.14);border-color:rgba(255,178,102,.35);color:var(--accent);}
.wall-card:nth-child(4){border-top-color:rgba(111,123,255,.35);}

/* ============ 提示对照 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{padding:28px;}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:19px;}
.compare-col h3 i{font-size:15px;}
.compare-col.warn h3 i{color:var(--danger);}
.compare-col.ok h3 i{color:var(--brand-2);}
.line-item{
  display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.07);
  font-size:14.5px;color:var(--ink-2);
}
.line-item:last-child{border-bottom:0;}
.line-item .k{flex:0 0 96px;color:var(--ink);font-weight:600;font-size:14px;}
.line-item .v{flex:1;}

/* ============ 步骤带 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step{
  padding:24px 22px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);
  transition:border-color .24s ease, transform .24s ease;
}
.step:hover{border-color:rgba(23,184,201,.45);transform:translateY(-3px);}
.step .no{
  font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--brand-2);letter-spacing:.14em;
}
.step h4{margin:12px 0 8px;font-size:17px;}
.step p{font-size:14px;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;}
.faq-item{overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brand-2);}
.faq-q .sign{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--stroke);transition:transform .3s ease, background .3s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--brand-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .sign::before{width:10px;height:2px;}
.faq-q .sign::after{width:2px;height:10px;transition:opacity .3s ease;}
.faq-item.open .faq-q .sign{transform:rotate(135deg);background:rgba(23,184,201,.14);}
.faq-item.open .faq-q .sign::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-item.open{position:relative;}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.faq-a-inner{padding:0 24px 22px 24px;color:var(--ink-2);font-size:15px;animation:fadeUp .34s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:52px 44px;
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.10);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:520px;height:520px;
  background:radial-gradient(circle at 60% 40%, rgba(23,184,201,.30), rgba(111,123,255,.16) 45%, transparent 70%);
  pointer-events:none;
}
.cta-band .inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);max-width:620px;}
.cta-band p{color:var(--ink-2);margin-top:12px;max-width:560px;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;position:relative;
  background:linear-gradient(180deg,rgba(13,23,38,.85),rgba(6,11,20,.98));
  border-top:1px solid rgba(23,184,201,.18);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,184,201,.85),rgba(111,123,255,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 44px;}
.footer-brand p{color:var(--ink-2);font-size:14px;margin-top:18px;max-width:340px;}
.footer-title{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--ink);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:var(--brand-2);transform:translateX(3px);}
.footer-contact{display:flex;flex-direction:column;gap:13px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0 34px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--ink-3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid var(--stroke);color:var(--brand-2);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .28s ease;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{box-shadow:0 0 0 1px rgba(23,184,201,.6),0 16px 40px -12px rgba(23,184,201,.85);}

/* ============ 移动导航 ============ */
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--stroke);background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .26s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:1100px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(340px,86vw);
    background:rgba(9,16,27,.97);backdrop-filter:blur(18px);
    border-left:1px solid var(--stroke);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:92px 24px 32px;z-index:65;
    transform:translateX(102%);transition:transform .32s ease;
    box-shadow:-24px 0 60px -30px rgba(0,0,0,.9);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{font-size:16px;padding:14px 12px;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link:hover{background:rgba(23,184,201,.08);}
  .nav-link.pill{border-radius:12px;text-align:center;justify-content:center;}
  .nav-actions .btn-outline{display:none;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-float{right:14px;bottom:-18px;}
  .wall{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .container,.container-wide{padding:0 20px;}
  .hero{padding:32px 0 56px;}
  .compare{grid-template-columns:1fr;}
  .wall{grid-template-columns:1fr;}
  .wall-card:nth-child(2) .wall-media,.wall-card:nth-child(5) .wall-media{height:176px;}
  .cta-band{padding:34px 24px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .to-top{width:44px;height:44px;right:16px;bottom:16px;}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-float{position:static;width:100%;margin-top:18px;}
  .btn{width:100%;}
  .hero-cta .btn,.cta-actions .btn{width:100%;}
}
@media (prefers-reduced-transparency:reduce){
  .glass,.hero-float,.cta-band,.to-top,.site-header.is-scrolled{backdrop-filter:none;background:#0d1726;}
}

/* roulang page: category4 */
:root{
  --bg-deep:#060b14;
  --bg-raised:#0d1726;
  --glass:rgba(19,32,50,.55);
  --stroke:rgba(23,184,201,.26);
  --brand:#17b8c9;
  --brand-2:#2ce0c8;
  --accent:#ffb266;
  --violet:#6f7bff;
  --ink:#eaf2f8;
  --ink-2:#a8bccd;
  --ink-3:#6d8296;
  --danger:#ff7a7a;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.ly-body{
  margin:0;
  padding:0;
  background:var(--bg-deep);
  color:var(--ink);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.ly-body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
}
.ly-body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(760px 540px at 86% -10%,rgba(23,184,201,.18),rgba(111,123,255,.10) 46%,transparent 72%);
}
.site-header,.site-main,.site-footer,.back-top{position:relative;z-index:1}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,11,20,.74);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom:1px solid rgba(23,184,201,.16);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(6,11,20,.9);border-bottom-color:rgba(23,184,201,.3)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-wrap{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 24px -8px rgba(23,184,201,.85);
}
.logo-mark svg{width:18px;height:18px}
.logo-text{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:9px 12px;
  border-radius:10px;
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.pill{
  border-color:var(--stroke);
  color:var(--brand-2);
  background:rgba(23,184,201,.08);
}
.nav-link.pill:hover{background:rgba(23,184,201,.16);border-color:rgba(23,184,201,.5)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:12px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
  line-height:1;padding:14px 24px;font-size:15px;
}
.btn svg{width:16px;height:16px;flex:0 0 16px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121a;
  box-shadow:0 0 0 1px rgba(23,184,201,.5),0 12px 34px -10px rgba(23,184,201,.65);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.62),0 16px 46px -8px rgba(23,184,201,.72)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 0 0 1px rgba(23,184,201,.4),0 6px 18px -10px rgba(23,184,201,.5)}
.btn-outline{border-color:var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.9);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{color:var(--brand-2);background:transparent;padding:14px 6px}
.btn-ghost svg{transition:transform .2s ease}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-ghost:hover{color:var(--brand)}
.btn-sm{padding:11px 18px;font-size:14px;border-radius:11px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--stroke);
  background:rgba(23,184,201,.08);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-2);transition:transform .25s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 通用组件 ============ */
.glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);
  border-top-color:rgba(255,255,255,.10);
  border-radius:16px;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:6px 12px;border-radius:999px;
  background:rgba(23,184,201,.12);
  color:var(--brand-2);
  border:1px solid rgba(23,184,201,.24);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px 2px rgba(44,224,200,.7)}
.badge-accent{background:rgba(255,178,102,.12);color:var(--accent);border-color:rgba(255,178,102,.28)}
.badge-accent .dot{background:var(--accent);box-shadow:0 0 10px 2px rgba(255,178,102,.6)}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;
  padding:5px 11px;border-radius:999px;color:var(--ink-2);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
}
.eyebrow{font-size:13px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.35;margin:0}
.section-sub{color:var(--ink-2);font-size:16px;margin:14px 0 0;max-width:760px}
.divider{height:1px;border:0;background:linear-gradient(90deg,rgba(23,184,201,.5),rgba(111,123,255,.25),transparent)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);padding:20px 0 0}
.breadcrumb a{color:var(--ink-3);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:rgba(109,130,150,.6)}
.breadcrumb .current{color:var(--ink)}

/* ============ Hero ============ */
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.hero-title{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:900;line-height:1.22;letter-spacing:-.01em;margin:20px 0 0;
}
.hero-title em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--ink-2);font-size:17px;margin:20px 0 0;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;font-size:13px;color:var(--ink-2)}
.hero-meta i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);margin-right:8px;vertical-align:middle}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--stroke);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3.1;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.42) 0%,rgba(6,11,20,.20) 45%,rgba(6,11,20,.88) 100%);
}
.hero-float{
  position:absolute;right:-16px;bottom:-22px;
  padding:18px 20px;border-radius:16px;min-width:210px;
  background:rgba(13,23,38,.86);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--stroke);
  border-top-color:rgba(255,255,255,.12);
  box-shadow:var(--shadow-card);
}
.mini-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.08)}
.mini-row:last-child{border-bottom:none}
.mini-row b{font-size:18px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;font-family:Inter,"Segoe UI",ui-sans-serif}
.mini-row span{font-size:13px;color:var(--ink-2)}

/* ============ 主体两栏 ============ */
.layout-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.panel{padding:26px 26px 24px}
.panel-title{font-size:18px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:10px}
.panel-title::before{content:"";width:3px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--brand-2))}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:10px;
  color:var(--ink-2);font-size:14px;line-height:1.6;
  transition:background .2s ease,color .2s ease;
}
.toc-list a:hover{background:rgba(23,184,201,.10);color:var(--brand-2)}
.toc-list a .idx{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:var(--brand);line-height:1.8;flex:0 0 22px}

.feature-block{padding:28px 30px;margin-bottom:24px;border-radius:16px;scroll-margin-top:96px}
.feature-head{display:flex;align-items:flex-start;gap:14px}
.feature-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;font-weight:700;
  color:#04121a;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 26px -12px rgba(23,184,201,.9);
}
.feature-block h3{font-size:22px;font-weight:700;margin:0;line-height:1.45}
.feature-block p{color:var(--ink-2);margin:16px 0 0;font-size:15.5px}
.point-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.point-list li{position:relative;padding-left:22px;color:var(--ink-2);font-size:15px}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;
  width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 10px rgba(23,184,201,.5);
}
.point-list li b{color:var(--ink);font-weight:600}
.feature-media{margin-top:22px;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.08);position:relative}
.feature-media img{width:100%;height:220px;object-fit:cover}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.16),rgba(6,11,20,.55))}
.feature-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 16px;
  font-size:13px;color:var(--ink-2);z-index:2;
}

/* ============ 表单 ============ */
.field{display:block;margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;color:var(--ink);
  padding:12px 14px;font-size:15px;font-family:inherit;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;outline:none;
}
.field textarea{resize:vertical;min-height:88px}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,184,201,.16)}
.field.is-error input,.field.is-error textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,122,122,.14)}
.field .err{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.field.is-error .err{display:block}
.form-tip{font-size:13px;color:var(--ink-3);margin:12px 0 0;min-height:20px}
.form-tip.ok{color:var(--brand-2)}

/* ============ 数据组 ============ */
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-radius:16px;overflow:hidden}
.metric{padding:26px 24px;text-align:center;border-right:1px solid rgba(255,255,255,.07)}
.metric:last-child{border-right:none}
.metric b{display:block;font-size:30px;font-weight:800;font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric.alt b{background:linear-gradient(120deg,var(--accent),#ffd7ab);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric span{display:block;font-size:14px;color:var(--ink-2);margin-top:8px}
.metric small{display:block;font-size:12px;color:var(--ink-3);margin-top:6px}

/* ============ 对照表 ============ */
.table-scroll{overflow-x:auto;border-radius:16px;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;font-size:15px;margin:0}
.cmp-table thead th{
  background:rgba(23,184,201,.14);
  color:var(--brand-2);
  font-weight:700;font-size:14px;letter-spacing:.03em;
  text-align:left;padding:16px 20px;
  border-bottom:1px solid var(--stroke);
  white-space:nowrap;
}
.cmp-table tbody td{
  padding:18px 20px;
  border-bottom:1px solid rgba(255,255,255,.07);
  color:var(--ink-2);vertical-align:top;font-size:15px;
}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table tbody tr{transition:background .2s ease}
.cmp-table tbody tr:hover td{background:rgba(255,255,255,.025)}
.cmp-table td strong{display:block;color:var(--ink);font-weight:600;margin-bottom:4px}
.cmp-table td .tag{margin-top:2px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:52px 48px;
  background:linear-gradient(135deg,rgba(23,184,201,.16),rgba(111,123,255,.12) 55%,rgba(19,32,50,.6));
  border:1px solid var(--stroke);
  border-top-color:rgba(255,255,255,.12);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:520px;height:520px;
  background:radial-gradient(circle,rgba(23,184,201,.28),rgba(111,123,255,.12) 45%,transparent 70%);
  pointer-events:none;
}
.cta-band h2{position:relative;font-size:clamp(24px,3.2vw,34px);font-weight:800;margin:0}
.cta-band p{position:relative;color:var(--ink-2);margin:16px 0 0;max-width:640px}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  border-top:1px solid rgba(255,255,255,.06);
  background:linear-gradient(180deg,rgba(13,23,38,.72),rgba(6,11,20,.94));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--violet) 55%,transparent);
  opacity:.85;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand p{color:var(--ink-2);font-size:14px;margin:18px 0 0;max-width:360px;line-height:1.85}
.footer-title{font-size:15px;font-weight:700;margin:0 0 16px;color:var(--ink);letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .2s ease,transform .2s ease;width:fit-content}
.footer-links a:hover{color:var(--brand-2);transform:translateX(3px)}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 34px;border-top:1px solid rgba(255,255,255,.07);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--ink-3)}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(19,32,50,.72);backdrop-filter:blur(14px);
  border:1px solid var(--stroke);color:var(--brand-2);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s,box-shadow .25s ease;
  z-index:80;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{box-shadow:0 0 0 1px rgba(23,184,201,.5),0 14px 36px -12px rgba(23,184,201,.8);color:var(--ink)}
.back-top svg{width:20px;height:20px}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(340px,86vw);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;
    background:rgba(9,16,28,.97);
    backdrop-filter:blur(18px) saturate(120%);
    border-left:1px solid var(--stroke);
    transform:translateX(105%);
    transition:transform .3s ease;
    z-index:70;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:14px 14px;font-size:16px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link.pill{background:rgba(23,184,201,.10)}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-float{position:static;margin-top:18px;right:auto;bottom:auto;min-width:0}
  .layout-grid{grid-template-columns:1fr;gap:28px}
  .side-sticky{position:static;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;padding:52px 0 32px}
  .section{padding:68px 0}
}
@media (max-width:767px){
  .container,.container-wide{padding:0 20px}
  .nav-wrap{height:64px}
  .site-header.is-scrolled .nav-wrap{height:58px}
  .logo-text{font-size:16px}
  .metrics{grid-template-columns:1fr 1fr}
  .metric{border-right:none;border-bottom:1px solid rgba(255,255,255,.07);padding:20px 16px}
  .metric:nth-child(odd){border-right:1px solid rgba(255,255,255,.07)}
  .metric:last-child{border-bottom:none}
  .cta-band{padding:36px 24px}
  .feature-block{padding:22px 20px}
  .feature-block h3{font-size:19px}
  .panel{padding:22px 20px}
  .section{padding:56px 0}
  .hero-visual .frame{aspect-ratio:4/3.4}
  .back-top{width:44px;height:44px;right:16px;bottom:16px}
}
@media (max-width:520px){
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .nav-actions .btn-outline{display:none}
  .hero-title{font-size:30px}
}
@media (prefers-reduced-transparency: reduce){
  .glass,.hero-float,.back-top,.site-header{backdrop-filter:none;background:rgba(13,23,38,.96)}
}

/* roulang page: category5 */
:root{
    --bg-deep:#060b14;
    --bg-raised:#0d1726;
    --glass:rgba(19,32,50,0.55);
    --stroke:rgba(23,184,201,0.26);
    --brand:#17b8c9;
    --brand-2:#2ce0c8;
    --accent:#ffb266;
    --violet:#6f7bff;
    --ink:#eaf2f8;
    --ink-2:#a8bccd;
    --ink-3:#6d8296;
    --danger:#ff7a7a;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-btn:12px;
    --shadow-card:0 20px 60px -24px rgba(0,0,0,.8);
    --shadow-inset:inset 0 1px 0 rgba(255,255,255,.06);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background-color:var(--bg-deep);
    background-image:
      radial-gradient(920px 540px at 88% -10%, rgba(23,184,201,.18), rgba(111,123,255,.10) 46%, transparent 72%),
      linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:auto, 24px 24px, 24px 24px;
    background-attachment:fixed;
    color:var(--ink);
    font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
  .container{max-width:1200px;margin:0 auto;padding:0 24px;}
  .container-wide{max-width:1280px;margin:0 auto;padding:0 24px;}
  .num{font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(6,11,20,.72);
    border-bottom:1px solid transparent;
    transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  }
  .site-header.is-scrolled{
    background:rgba(6,11,20,.86);
    backdrop-filter:blur(16px) saturate(130%);
    border-bottom-color:rgba(23,184,201,.22);
  }
  .nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height .3s ease;}
  .site-header.is-scrolled .nav-wrap{height:60px;}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    box-shadow:0 10px 24px -10px rgba(23,184,201,.85);
  }
  .logo-mark svg{width:18px;height:18px;}
  .logo-text{font-size:18px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
  .nav-link{
    position:relative;font-size:15.5px;color:var(--ink-2);
    padding:6px 0;transition:color .22s ease;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--brand),var(--brand-2));
    transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--ink);}
  .nav-link.pill{
    border:1px solid rgba(23,184,201,.45);
    padding:7px 14px;border-radius:999px;color:var(--brand-2);
  }
  .nav-link.pill::after{display:none;}
  .nav-link.pill:hover{background:rgba(23,184,201,.12);color:var(--ink);}
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px;}
  .drawer-actions{display:none;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
    transition:transform .2s ease,box-shadow .25s ease,background .22s ease,color .22s ease,border-color .22s ease,filter .22s ease;
  }
  .btn svg{width:16px;height:16px;transition:transform .22s ease;}
  .btn-primary{
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    color:#04121a;
    box-shadow:0 0 0 1px rgba(23,184,201,.5), 0 12px 34px -10px rgba(23,184,201,.65);
  }
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(23,184,201,.6),0 16px 46px -10px rgba(23,184,201,.8);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 0 0 1px rgba(23,184,201,.45),0 8px 22px -12px rgba(23,184,201,.6);}
  .btn-outline{
    background:transparent;border:1px solid rgba(255,178,102,.62);color:var(--accent);
  }
  .btn-outline:hover{background:rgba(255,178,102,.12);border-color:rgba(255,178,102,.9);transform:translateY(-2px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-ghost{
    height:auto;padding:4px 0;color:var(--ink-2);background:none;font-weight:600;
  }
  .btn-ghost svg{width:15px;height:15px;}
  .btn-ghost:hover{color:var(--brand-2);}
  .btn-ghost:hover svg{transform:translateX(4px);}
  .btn-sm{height:36px;padding:0 16px;font-size:14px;}
  .btn-sm.btn-primary{box-shadow:0 0 0 1px rgba(23,184,201,.5),0 10px 26px -12px rgba(23,184,201,.7);}
  .btn-block{width:100%;}
  .btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(23,184,201,.28);
    flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .25s ease,opacity .25s ease,background .25s ease;}
  .nav-toggle:hover span{background:var(--brand-2);}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section-tight{padding:56px 0;}
  .section-head{max-width:760px;margin-bottom:32px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
    color:var(--brand-2);
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
  .h2{font-size:38px;font-weight:800;line-height:1.28;margin-top:14px;}
  .h3{font-size:22px;font-weight:700;line-height:1.4;}
  .h4{font-size:18px;font-weight:700;line-height:1.5;}
  .lead{color:var(--ink-2);margin-top:14px;font-size:16px;}
  .muted{color:var(--ink-3);font-size:14px;}

  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:14px;color:var(--ink-3);padding:22px 0 0;
  }
  .breadcrumb a:hover{color:var(--brand-2);}
  .breadcrumb .sep{color:var(--ink-3);}
  .breadcrumb .current{color:var(--ink);}

  .glass{
    background:var(--glass);
    backdrop-filter:blur(14px) saturate(120%);
    border:1px solid var(--stroke);
    border-top-color:rgba(255,255,255,.10);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card),var(--shadow-inset);
  }

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:600;
    background:rgba(23,184,201,.12);color:var(--brand-2);
    border:1px solid rgba(23,184,201,.28);
  }
  .badge-amber{background:rgba(255,178,102,.12);color:var(--accent);border-color:rgba(255,178,102,.3);}
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;}

  /* ---------- 页头 ---------- */
  .page-hero{position:relative;padding:34px 0 8px;}
  .page-hero .glow{
    position:absolute;inset:-40px 0 auto auto;width:560px;height:360px;pointer-events:none;
    background:radial-gradient(closest-side,rgba(23,184,201,.20),rgba(111,123,255,.10) 60%,transparent 78%);
    filter:blur(6px);
  }
  .page-title{
    font-size:clamp(32px,4.4vw,50px);font-weight:900;line-height:1.24;
    margin-top:18px;letter-spacing:-.01em;
  }
  .page-sub{color:var(--ink-2);max-width:820px;margin-top:18px;font-size:17px;}
  .quick-jump{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

  /* ---------- FAQ 手风琴 ---------- */
  .faq-list{display:flex;flex-direction:column;gap:16px;max-width:920px;margin:0 auto;}
  .faq-item{
    position:relative;overflow:hidden;
    background:var(--glass);
    backdrop-filter:blur(14px) saturate(120%);
    border:1px solid var(--stroke);
    border-top-color:rgba(255,255,255,.10);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card),var(--shadow-inset);
    transition:border-color .25s ease,transform .25s ease;
  }
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
    background:linear-gradient(180deg,var(--brand),var(--brand-2));
    opacity:0;transition:opacity .25s ease;
  }
  .faq-item:hover{border-color:rgba(23,184,201,.45);transform:translateY(-2px);}
  .faq-item.is-open{border-color:rgba(23,184,201,.55);}
  .faq-item.is-open::before{opacity:1;}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:16px;
    padding:22px 26px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  }
  .faq-q .idx{
    font-family:Inter,"Segoe UI",ui-sans-serif;font-variant-numeric:tabular-nums;
    font-size:13px;font-weight:700;color:var(--brand-2);
    min-width:26px;
  }
  .faq-q .txt{flex:1;}
  .faq-icon{
    flex-shrink:0;width:26px;height:26px;border-radius:8px;
    display:grid;place-items:center;
    border:1px solid rgba(23,184,201,.35);color:var(--brand-2);
    transition:transform .3s ease,background .25s ease,color .25s ease;
  }
  .faq-icon svg{width:14px;height:14px;}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(23,184,201,.16);}
  .faq-a{
    max-height:0;opacity:0;overflow:hidden;
    transition:max-height .38s ease,opacity .3s ease,padding .3s ease;
    padding:0 26px;
  }
  .faq-item.is-open .faq-a{max-height:640px;opacity:1;padding:0 26px 24px;}
  .faq-a p{color:var(--ink-2);font-size:15.5px;}
  .faq-a p + p{margin-top:12px;}
  .faq-a .steps{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
  .faq-a .steps li{
    display:flex;gap:10px;color:var(--ink-2);font-size:15px;
    padding-left:2px;
  }
  .faq-a .steps li span.dot{
    flex-shrink:0;width:20px;height:20px;border-radius:6px;margin-top:4px;
    display:grid;place-items:center;font-size:11px;font-weight:700;color:#04121a;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
  }
  .faq-a .tips{
    margin-top:16px;padding:14px 16px;border-radius:12px;
    background:rgba(255,178,102,.08);
    border:1px solid rgba(255,178,102,.24);
    color:var(--accent);font-size:14px;
  }

  /* ---------- 证言 ---------- */
  .quote-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
  .quote-main{
    position:relative;padding:40px 38px;border-radius:var(--radius-lg);overflow:hidden;
    background:var(--glass);border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.10);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-card),var(--shadow-inset);
  }
  .quote-main::after{
    content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;border-radius:50%;
    border:1px solid rgba(23,184,201,.22);
    background:radial-gradient(closest-side,rgba(23,184,201,.10),transparent 72%);
  }
  .quote-mark{font-family:Georgia,serif;font-size:60px;line-height:.8;color:rgba(23,184,201,.5);}
  .quote-main blockquote{
    margin:16px 0 0;font-size:20px;line-height:1.7;color:var(--ink);
  }
  .quote-person{display:flex;align-items:center;gap:12px;margin-top:26px;position:relative;z-index:1;}
  .avatar{
    width:48px;height:48px;border-radius:50%;flex-shrink:0;
    display:grid;place-items:center;font-weight:800;font-size:16px;color:#04121a;
    background:linear-gradient(135deg,var(--accent),#ffd7a8);
  }
  .quote-side{display:flex;flex-direction:column;gap:20px;}
  .quote-mini{
    padding:26px 24px;border-radius:var(--radius-card);
    background:rgba(13,23,38,.72);border:1px solid rgba(255,255,255,.06);
    border-top-color:rgba(255,255,255,.10);
    box-shadow:var(--shadow-card),var(--shadow-inset);
    transition:transform .25s ease,border-color .25s ease;
  }
  .quote-mini:hover{transform:translateY(-3px);border-color:rgba(23,184,201,.4);}
  .quote-mini blockquote{font-size:15.5px;color:var(--ink-2);margin-top:10px;}

  /* ---------- 图文说明 ---------- */
  .split{display:grid;grid-template-columns:6fr 6fr;gap:32px;align-items:center;}
  .figure-card{
    position:relative;border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--stroke);
    box-shadow:var(--shadow-card);
    background:var(--bg-raised);
  }
  .figure-card img{width:100%;height:100%;min-height:320px;object-fit:cover;filter:saturate(1.05);}
  .figure-card::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,11,20,.34),rgba(6,11,20,.06) 42%,rgba(23,184,201,.24));
  }
  .figure-caption{
    position:absolute;left:20px;bottom:16px;right:20px;z-index:2;
    font-size:13px;color:rgba(234,242,248,.86);
  }
  .step-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
  .step-item{
    display:flex;gap:16px;padding:20px 22px;border-radius:14px;
    background:rgba(13,23,38,.6);border:1px solid rgba(255,255,255,.06);
    transition:border-color .25s ease,background .25s ease,transform .25s ease;
  }
  .step-item:hover{border-color:rgba(23,184,201,.4);background:rgba(19,32,50,.72);transform:translateY(-2px);}
  .step-no{
    flex-shrink:0;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
    font-family:Inter,"Segoe UI",ui-sans-serif;font-weight:800;font-size:14px;color:#04121a;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
  }
  .step-item h4{font-size:17px;font-weight:700;}
  .step-item p{color:var(--ink-2);font-size:15px;margin-top:6px;}

  /* ---------- CTA ---------- */
  .cta-wrap{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    padding:56px 48px;
    background:var(--glass);
    border:1px solid var(--stroke);border-top-color:rgba(255,255,255,.12);
    backdrop-filter:blur(16px) saturate(130%);
    box-shadow:var(--shadow-card),var(--shadow-inset);
    text-align:center;
  }
  .cta-wrap::before{
    content:"";position:absolute;inset:-120px -80px auto auto;width:520px;height:380px;pointer-events:none;
    background:radial-gradient(closest-side,rgba(23,184,201,.26),rgba(111,123,255,.16) 56%,transparent 78%);
  }
  .cta-wrap h2{position:relative;font-size:34px;font-weight:800;line-height:1.3;}
  .cta-wrap p{position:relative;color:var(--ink-2);margin-top:14px;}
  .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;}
  .ghost-group{
    display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
    padding-top:8px;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;margin-top:40px;
    background:linear-gradient(180deg,rgba(13,23,38,.7),rgba(6,11,20,.95));
    border-top:1px solid rgba(23,184,201,.18);
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,184,201,.85),rgba(111,123,255,.7),transparent);
    box-shadow:0 0 14px rgba(23,184,201,.6);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;
    padding:64px 0 40px;
  }
  .footer-brand p{color:var(--ink-2);font-size:14.5px;margin-top:16px;max-width:340px;}
  .footer-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{color:var(--ink-2);font-size:14.5px;transition:color .22s ease,transform .22s ease;display:inline-block;}
  .footer-links a:hover{color:var(--brand-2);transform:translateX(3px);}
  .footer-contact{display:flex;flex-direction:column;gap:13px;}
  .footer-contact li{display:flex;gap:10px;color:var(--ink-2);font-size:14.5px;}
  .footer-contact svg{width:17px;height:17px;flex-shrink:0;margin-top:5px;color:var(--brand-2);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    padding:22px 0 34px;border-top:1px solid rgba(255,255,255,.08);
    color:var(--ink-3);font-size:13.5px;
  }

  .to-top{
    position:fixed;right:24px;bottom:24px;z-index:80;
    width:56px;height:56px;border-radius:50%;
    display:grid;place-items:center;
    background:var(--glass);border:1px solid var(--stroke);
    backdrop-filter:blur(14px);
    color:var(--brand-2);
    box-shadow:var(--shadow-card);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .3s ease,transform .3s ease,visibility .3s,box-shadow .3s ease,border-color .3s ease;
  }
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{border-color:var(--brand);box-shadow:0 0 0 1px rgba(23,184,201,.4),0 18px 42px -16px rgba(23,184,201,.9);}
  .to-top svg{width:20px;height:20px;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .section{padding:64px 0;}
    .h2{font-size:28px;}
    .quote-grid{grid-template-columns:1fr;}
    .split{grid-template-columns:1fr;gap:26px;}
    .figure-card img{min-height:260px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .cta-wrap{padding:44px 28px;}
    .cta-wrap h2{font-size:27px;}
    body{background-attachment:scroll;}
  }
  @media (max-width:899px){
    .nav-links{
      position:fixed;top:0;right:0;height:100vh;width:min(340px,86vw);
      flex-direction:column;align-items:flex-start;gap:6px;
      padding:96px 24px 32px;margin:0;
      background:rgba(8,15,26,.97);
      backdrop-filter:blur(16px) saturate(130%);
      border-left:1px solid var(--stroke);
      transform:translateX(102%);transition:transform .34s ease;
      z-index:90;overflow-y:auto;
    }
    .nav-links.is-open{transform:translateX(0);}
    .nav-link{font-size:16px;width:100%;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06);}
    .nav-link.pill{width:auto;border-bottom:1px solid rgba(23,184,201,.45);}
    .nav-actions .btn{display:none;}
    .nav-toggle{display:flex;}
    .drawer-actions{display:flex;flex-direction:column;gap:12px;width:100%;margin-top:22px;}
    .drawer-actions .btn{display:inline-flex;width:100%;}
  }
  @media (max-width:639px){
    .container,.container-wide{padding:0 20px;}
    body{font-size:15.5px;}
    .section{padding:56px 0;}
    .page-title{font-size:32px;}
    .h2{font-size:26px;}
    .h3{font-size:19px;}
    .faq-q{font-size:16px;padding:18px 18px;gap:12px;}
    .faq-item.is-open .faq-a{padding:0 18px 20px;}
    .faq-a{padding:0 18px;}
    .quote-main{padding:28px 22px;}
    .quote-main blockquote{font-size:17px;}
    .cta-wrap{padding:36px 20px;}
    .cta-wrap h2{font-size:23px;}
    .cta-actions .btn{width:100%;}
    .ghost-group{flex-direction:column;align-items:center;}
    .footer-grid{grid-template-columns:1fr;gap:24px;padding:48px 0 32px;}
    .to-top{width:44px;height:44px;right:18px;bottom:18px;}
    .logo-text{font-size:16px;}
  }
  @supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
    .glass,.faq-item,.quote-main,.cta-wrap,.to-top{background:rgba(13,23,38,.94);}
  }