/* roulang page: index */
:root{
  --bg:#071512;
  --bg-2:#0B1E18;
  --bg-3:#0F2A22;
  --primary:#2FE0A5;
  --primary-deep:#17C08A;
  --amber:#F3B23C;
  --text:#E6F3EE;
  --muted:#9FB5AD;
  --weak:#6E837C;
  --line:rgba(120,230,190,.16);
  --line-strong:rgba(120,230,190,.34);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --radius-card:18px;
  --radius-big:24px;
  --radius-pill:999px;
  --shadow-soft:0 4px 16px rgba(0,0,0,.28);
  --shadow-mid:0 12px 36px rgba(0,0,0,.36);
  --shadow-glow:0 0 0 1px rgba(47,224,165,.35), 0 10px 34px rgba(47,224,165,.25);
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(47,224,165,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#06110E;}
::-webkit-scrollbar-thumb{background:rgba(47,224,165,.28);border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,165,.5);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;}
.section{padding:var(--space-section) 0;position:relative;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:.06em;
  color:var(--primary);
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(47,224,165,.07);
  margin-bottom:18px;
}
.h2{font-size:clamp(21px,2.2vw,28px);font-weight:700;letter-spacing:.01em;}
.h3{font-size:clamp(17px,1.6vw,20px);font-weight:600;}
.lead{color:var(--muted);font-size:16px;margin-top:14px;}
.text-amber{color:var(--amber);}
.text-brand{color:var(--primary);}
.mono-num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(7,21,18,.12);
  border-bottom:1px solid rgba(120,230,190,.08);
  transition:background .3s ease, backdrop-filter .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,30,24,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.34);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .site-header.is-scrolled{background:rgba(11,30,24,.94);}
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(150deg, var(--primary), var(--primary-deep));
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(47,224,165,.32);
  flex-shrink:0;
}
.brand-mark svg{width:19px;height:19px;display:block;}
.brand-name{
  font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;
  font-size:15px;color:var(--muted);
  padding:6px 2px;
  transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 12px rgba(47,224,165,.7);
  transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  cursor:pointer;transition:all .25s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(47,224,165,.08);}
.hamburger{display:none;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease, box-shadow .22s ease, filter .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  min-height:48px;
}
.btn-primary{
  background:linear-gradient(135deg, var(--primary), var(--primary-deep));
  color:#062119;
  box-shadow:0 8px 24px rgba(47,224,165,.26);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,165,.45), 0 14px 34px rgba(47,224,165,.34);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;border-color:rgba(47,224,165,.4);color:var(--text);
}
.btn-ghost:hover{background:rgba(47,224,165,.08);border-color:var(--line-strong);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(47,224,165,.14);}
.btn-sm{padding:11px 20px;font-size:14px;min-height:44px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:border-color .25s ease,color .25s ease;
}
.link-arrow span{transition:transform .25s ease;display:inline-block;}
.link-arrow:hover{border-bottom-color:rgba(47,224,165,.6);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--radius-pill);line-height:1.6;
}
.badge-outline{border:1px solid var(--line-strong);color:var(--primary);background:rgba(47,224,165,.06);}
.badge-amber{background:rgba(243,178,60,.14);color:var(--amber);border:1px solid rgba(243,178,60,.3);}
.badge-plain{border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.03);}

/* ---------- Glass card ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-soft);
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  position:relative;
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
  opacity:0;transition:opacity .3s ease;
}
.glass:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow-mid);}
.glass:hover::before{opacity:1;}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass{background:rgba(11,30,24,.92);}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 96px;
  overflow:hidden;
  background:
    radial-gradient(900px 520px at 78% 12%, rgba(47,224,165,.16), transparent 62%),
    radial-gradient(700px 420px at 12% 82%, rgba(243,178,60,.10), transparent 66%),
    var(--bg);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(230,243,238,.035) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(230,243,238,.035) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero h1{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;line-height:1.2;letter-spacing:.01em;margin:18px 0 0;
}
.hero-sub{color:var(--muted);font-size:17px;margin-top:18px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.trust-row li{
  font-size:13px;color:var(--muted);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:6px 14px;background:rgba(255,255,255,.03);
  display:inline-flex;align-items:center;gap:7px;
}
.trust-row li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(47,224,165,.9);
}
.hero-visual{position:relative;}
.hero-media{
  position:relative;
  border-radius:var(--radius-big);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-mid);
  aspect-ratio:4/3;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg, rgba(7,21,18,.28), rgba(7,21,18,.78));
}
.hero-float{
  position:absolute;left:-24px;bottom:-28px;
  width:290px;padding:18px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-glow);
  display:flex;gap:14px;align-items:center;
  animation:floatIn .8s ease both .3s;
}
.hero-float img{width:64px;height:64px;border-radius:14px;object-fit:cover;flex-shrink:0;}
.hero-float strong{display:block;font-size:14px;font-weight:700;color:var(--text);}
.hero-float small{display:block;font-size:12px;color:var(--muted);line-height:1.7;margin-top:2px;}
@keyframes floatIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}

/* ---------- Pain points ---------- */
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.pain-card{
  padding:30px 30px 30px 34px;
  display:flex;gap:22px;align-items:flex-start;
}
.pain-card:nth-child(2){margin-top:28px;}
.pain-card:nth-child(3){margin-top:-28px;}
.pain-num{
  font-size:34px;line-height:1;color:var(--amber);
  font-variant-numeric:tabular-nums;font-weight:700;
  opacity:.9;flex-shrink:0;
  border-left:2px solid rgba(243,178,60,.5);
  padding-left:16px;
}
.pain-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.pain-card p{color:var(--muted);font-size:15px;}

/* ---------- Solutions ---------- */
.solution-list{display:flex;flex-direction:column;gap:26px;}
.solution-card{
  display:grid;grid-template-columns:340px 1fr;gap:0;
  align-items:stretch;overflow:hidden;
}
.solution-card.reverse{grid-template-columns:1fr 340px;}
.solution-media{
  position:relative;min-height:230px;
  background-size:cover;background-position:center;
}
.solution-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg, rgba(7,21,18,.35), rgba(7,21,18,.72));
}
.solution-body{padding:34px 36px;display:flex;flex-direction:column;justify-content:center;}
.solution-idx{
  font-size:44px;font-weight:700;line-height:1;color:var(--amber);
  font-variant-numeric:tabular-nums;margin-bottom:14px;letter-spacing:.02em;
}
.solution-body h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.solution-body p{color:var(--muted);font-size:15px;max-width:640px;}
.solution-body .link-arrow{margin-top:20px;}
.solution-card.reverse .solution-media{order:2;}
.solution-card.reverse .solution-body{order:1;}

/* ---------- Stats band ---------- */
.stats-band{
  position:relative;
  padding:84px 0;
  background:var(--bg-2);
  overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 320px at 18% 20%, rgba(47,224,165,.18), transparent 66%),
    radial-gradient(520px 300px at 84% 78%, rgba(243,178,60,.14), transparent 68%);
}
.stats-grid{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{
  padding:6px 28px;border-left:1px solid rgba(120,230,190,.18);
}
.stat-item:first-child{border-left:none;padding-left:0;}
.stat-value{font-size:clamp(30px,4vw,44px);font-weight:700;line-height:1.1;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-item:nth-child(even) .stat-value{color:var(--amber);}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.02em;margin-top:8px;}
.stat-note{position:relative;text-align:center;color:var(--weak);font-size:13px;margin-top:44px;}

/* ---------- Testimonials ---------- */
.quote-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start;}
.quote-main{padding:38px 40px;}
.quote-mark{font-size:52px;line-height:1;color:rgba(47,224,165,.5);font-family:Georgia,serif;}
.quote-main p{font-size:18px;color:var(--text);margin-top:12px;}
.quote-side{display:flex;flex-direction:column;gap:24px;}
.quote-small{padding:26px 28px;}
.quote-small p{font-size:15px;color:var(--muted);}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:22px;}
.quote-person img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:1px solid var(--line-strong);}
.quote-person strong{display:block;font-size:14px;font-weight:700;}
.quote-person small{display:block;font-size:12px;color:var(--weak);}

/* ---------- CMS list ---------- */
.posts-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;align-items:start;}
.post-card{display:flex;flex-direction:column;overflow:hidden;}
.post-card-lg{grid-row:span 2;}
.post-thumb{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;background:var(--bg-3);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:17px;font-weight:600;transition:color .25s ease;line-height:1.5;}
.post-card:hover h3{color:var(--primary);}
.post-card p{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card-lg .post-body{padding:26px 28px 30px;}
.post-card-lg h3{font-size:21px;}
.post-meta{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--weak);margin-top:auto;padding-top:8px;
}
.post-meta svg{width:14px;height:14px;flex-shrink:0;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;padding:40px 24px;grid-column:1 / -1;
}
.empty-state svg{width:44px;height:44px;color:var(--weak);}
.empty-state p{color:var(--muted);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;transition:border-color .3s ease,background .3s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;font-size:16px;font-weight:600;
  transition:color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-plus{
  flex-shrink:0;width:26px;height:26px;position:relative;
  transition:transform .3s ease,color .3s ease;color:var(--muted);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-plus::before{left:5px;right:5px;top:12px;height:2px;}
.faq-plus::after{top:5px;bottom:5px;left:12px;width:2px;}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--primary);}
.faq-answer{
  padding:0 26px 24px 26px;color:var(--muted);font-size:15px;
  border-left:2px solid var(--primary);margin:0 0 4px 26px;
  padding-left:20px;
}

/* ---------- CTA band ---------- */
.cta-band{padding:0 0 var(--space-section);}
.cta-inner{
  position:relative;overflow:hidden;
  border-radius:var(--radius-big);
  border:1px solid var(--line-strong);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:
    radial-gradient(600px 260px at 12% 10%, rgba(47,224,165,.22), transparent 70%),
    radial-gradient(520px 240px at 88% 90%, rgba(243,178,60,.16), transparent 72%),
    linear-gradient(140deg, #0C241D, #081914);
  box-shadow:var(--shadow-glow);
}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;}
.cta-inner p{color:var(--muted);font-size:15px;margin-top:10px;max-width:600px;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--bg-2);
  padding:70px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg, var(--primary), rgba(47,224,165,0));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-list{display:flex;flex-direction:column;gap:11px;}
.footer-list a{
  font-size:14px;color:var(--muted);
  transition:color .25s ease, transform .25s ease;display:inline-block;
}
.footer-list a:hover{color:var(--primary);transform:translateX(3px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(120,230,190,.12);
  padding:24px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}
.footer-bottom a{color:var(--weak);}
.footer-bottom a:hover{color:var(--primary);}
.footer-group-toggle{display:none;}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,12,10,.6);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,380px);z-index:95;
  background:rgba(9,24,20,.94);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .34s cubic-bezier(.4,.05,.2,1);
  padding:24px 24px 34px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  min-height:44px;display:flex;align-items:center;
  font-size:16px;color:var(--muted);border-bottom:1px solid rgba(120,230,190,.1);
  transition:color .25s ease,padding-left .25s ease;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);padding-left:6px;}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot small{color:var(--weak);font-size:13px;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--space-section:72px;}
  .container{padding:0 28px;}
  .main-nav{display:none;}
  .hamburger{display:grid;}
  .nav-right .icon-btn.search{display:none;}
  .hero{padding:126px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-sub{max-width:none;}
  .hero-float{left:auto;right:16px;bottom:-24px;width:260px;}
  .pain-grid{grid-template-columns:1fr;}
  .pain-card:nth-child(2),.pain-card:nth-child(3){margin-top:0;}
  .solution-card,.solution-card.reverse{grid-template-columns:1fr;}
  .solution-card.reverse .solution-media{order:1;}
  .solution-card.reverse .solution-body{order:2;}
  .solution-media{min-height:200px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:32px 0;}
  .stat-item{border-left:none;padding:0 20px;}
  .stat-item:nth-child(odd){border-left:none;padding-left:0;}
  .stat-item:nth-child(even){border-left:1px solid rgba(120,230,190,.18);}
  .quote-layout{grid-template-columns:1fr;}
  .posts-grid{grid-template-columns:1fr 1fr;}
  .post-card-lg{grid-row:auto;grid-column:1 / -1;flex-direction:row;}
  .post-card-lg .post-thumb{width:44%;aspect-ratio:auto;min-height:220px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  .container{padding:0 20px;}
  body{font-size:15.5px;}
  .hero{padding:112px 0 62px;}
  .hero h1{font-size:26px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-float{position:static;width:100%;margin-top:18px;animation:none;}
  .hero-media{aspect-ratio:16/11;}
  .stats-grid{display:flex;overflow-x:auto;gap:14px;padding-bottom:8px;scroll-snap-type:x mandatory;}
  .stat-item{
    flex:0 0 78%;scroll-snap-align:start;padding:20px;border:1px solid var(--line) !important;
    border-radius:var(--radius-card);background:rgba(255,255,255,.03);
  }
  .stat-item:first-child{padding-left:20px;}
  .posts-grid{grid-template-columns:1fr;}
  .post-card-lg{flex-direction:column;}
  .post-card-lg .post-thumb{width:100%;aspect-ratio:16/9;min-height:0;}
  .cta-inner{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid rgba(120,230,190,.12);}
  .footer-group-toggle{
    display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;
    background:none;border:none;padding:16px 0;font-size:14px;font-weight:700;color:var(--text);cursor:pointer;
  }
  .footer-col .footer-list{padding-bottom:16px;}
  .footer-col.collapsed .footer-list{display:none;}
  .footer-brand{margin-bottom:24px;}
  .quote-main{padding:28px 24px;}
  .quote-small{padding:22px 22px;}
  .faq-item summary{padding:18px 20px;font-size:15px;}
  .faq-answer{margin-left:20px;padding-left:16px;padding-right:20px;}
}
@media (max-width:520px){
  .hero-float img{width:54px;height:54px;}
  .brand-name{font-size:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg:#071512;
  --bg-2:#0B1E18;
  --brand:#2FE0A5;
  --brand-deep:#17C08A;
  --amber:#F3B23C;
  --text:#E6F3EE;
  --text-2:#9FB5AD;
  --text-3:#6E837C;
  --line:rgba(120,230,190,.16);
  --line-soft:rgba(120,230,190,.10);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --danger:#FF7A6B;
  --r-card:18px;
  --r-big:24px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --sh-s:0 4px 16px rgba(0,0,0,.28);
  --sh-m:0 12px 36px rgba(0,0,0,.36);
  --sh-glow:0 0 0 1px rgba(47,224,165,.35), 0 10px 34px rgba(47,224,165,.25);
  --gap-section:96px;
  --mono-num:"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body.site-body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body.site-body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(47,224,165,.10), transparent 62%),
    radial-gradient(760px 460px at 96% 4%, rgba(243,178,60,.08), transparent 60%);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,opacity .25s ease;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 40px;
  position:relative;
  z-index:1;
}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(7,21,18,.62);
  border-bottom:1px solid rgba(120,230,190,.08);
  backdrop-filter:blur(6px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(11,30,24,.88);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.34);
}
@supports not (backdrop-filter:blur(1px)){
  .site-header{background:rgba(11,30,24,.92);}
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(47,224,165,.22),rgba(47,224,165,.04));
  border:1px solid var(--line);
  color:var(--brand);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:8px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(47,224,165,0));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(47,224,165,.7);}
.header-actions{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  transition:color .25s ease,border-color .25s ease,transform .25s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,224,165,.5);transform:translateY(-2px);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  line-height:1;
  min-height:44px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--brand-deep));
  color:#062119;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,165,.45),0 16px 40px rgba(47,224,165,.34);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(47,224,165,.4);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(47,224,165,.08);border-color:rgba(47,224,165,.7);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  border-bottom:1px solid rgba(47,224,165,.35);
  padding-bottom:2px;
}
.btn-text:hover{border-bottom-color:var(--brand);}
.btn-text .arrow{transition:transform .25s ease;}
.btn-text:hover .arrow{transform:translateX(3px);}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  color:var(--text);
}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  display:none;
}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(4,12,10,.72);backdrop-filter:blur(6px);}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(87vw,380px);
  height:100%;
  background:rgba(11,30,24,.96);
  border-left:1px solid var(--line);
  padding:24px 22px 32px;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
  animation:drawerIn .3s ease;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:0;}to{transform:translateX(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:14px;}
.drawer-brand{font-size:16px;font-weight:700;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);
}
.drawer-close:hover{color:var(--brand);border-color:rgba(47,224,165,.5);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 4px;
  min-height:44px;
  display:flex;
  align-items:center;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer-contact{font-size:13px;color:var(--text-3);letter-spacing:.02em;}
/* ---------- 通用区块 ---------- */
.section{padding:var(--gap-section) 0;}
.section-head{margin-bottom:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  color:var(--brand);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:6px 14px;
  background:rgba(47,224,165,.06);
  margin-bottom:16px;
}
.eyebrow.amber{color:var(--amber);background:rgba(243,178,60,.10);border-color:rgba(243,178,60,.28);}
h1{font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.01em;}
h2{font-size:28px;font-weight:700;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
.lead{font-size:17px;color:var(--text-2);line-height:1.9;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-s);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
@supports not (backdrop-filter:blur(1px)){
  .glass{background:rgba(11,30,24,.92);}
}
.glass:hover{border-color:rgba(47,224,165,.42);transform:translateY(-4px);box-shadow:var(--sh-m);}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  letter-spacing:.02em;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--brand);
  background:rgba(47,224,165,.07);
}
.badge-amber{
  background:var(--amber);
  color:#2A1B02;
  border-color:transparent;
}
/* ---------- 面包屑 ---------- */
.crumb-bar{padding-top:104px;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);letter-spacing:.02em;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.7;}
.breadcrumb .current{color:var(--text);max-width:min(52vw,460px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
/* ---------- 文章头 ---------- */
.article-head{padding:26px 0 0;}
.article-head .head-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.article-title{
  font-size:40px;
  font-weight:800;
  line-height:1.24;
  max-width:900px;
  letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:20px;
  font-size:13px;
  color:var(--text-2);
  letter-spacing:.02em;
}
.meta-row .dot{width:1px;height:13px;background:var(--line);display:inline-block;}
.cover-wrap{margin-top:34px;}
.cover-figure{
  position:relative;
  border-radius:var(--r-big);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-m);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.cover-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,21,18,0) 45%,rgba(7,21,18,.6) 100%);
  pointer-events:none;
}
.cover-caption{
  margin-top:12px;
  text-align:center;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
/* ---------- 阅读布局 ---------- */
.read-wrap{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:56px;
  align-items:start;
  padding-bottom:var(--gap-section);
}
.article-body{
  max-width:800px;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  font-size:26px;
  font-weight:700;
  line-height:1.4;
  margin-top:2em;
  padding-left:16px;
  position:relative;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(47,224,165,.15));
  box-shadow:0 0 14px rgba(47,224,165,.6);
}
.article-body h3{
  font-size:19px;
  font-weight:600;
  color:#CFE9E0;
  margin-top:1.7em;
}
.article-body p{color:#D8E9E3;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(47,224,165,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body ul{display:flex;flex-direction:column;gap:10px;}
.article-body ul li{position:relative;padding-left:22px;color:#D8E9E3;}
.article-body ul li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:8px;height:8px;
  border-radius:2px;
  background:rgba(47,224,165,.75);
  box-shadow:0 0 10px rgba(47,224,165,.45);
}
.article-body ol{counter-reset:item;display:flex;flex-direction:column;gap:10px;}
.article-body ol li{position:relative;padding-left:30px;counter-increment:item;color:#D8E9E3;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--mono-num);
  font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.04em;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 24px;
  background:var(--glass);
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  border-radius:var(--r-card);
  color:#DCEBE5;
  backdrop-filter:blur(10px);
}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.article-body .table-scroll{overflow-x:auto;border-radius:var(--r-card);}
.article-body th{
  position:sticky;top:0;
  background:rgba(11,30,24,.96);
  color:var(--brand);
  text-align:left;
  font-weight:600;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--line-soft);
  color:#D2E5DE;
}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
/* 空态 */
.empty-state{
  min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;
  text-align:center;
  padding:40px 24px;
  border-radius:var(--r-card);
  border:1px dashed var(--line);
  background:rgba(255,255,255,.02);
}
.empty-state svg{width:46px;height:46px;color:var(--brand);opacity:.8;}
.empty-state p{color:var(--text-2);font-size:15px;}
/* ---------- 侧栏 ---------- */
.aside-inner{
  position:sticky;
  top:104px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.panel{padding:22px;}
.panel-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
  margin-bottom:14px;
}
.panel-title::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 10px rgba(47,224,165,.7);
}
.toc-list{display:flex;flex-direction:column;gap:4px;max-height:320px;overflow-y:auto;}
.toc-list a{
  display:block;
  font-size:14px;
  color:var(--text-2);
  padding:7px 10px;
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.toc-list a:hover,.toc-list a.on{
  color:var(--brand);
  border-left-color:var(--brand);
  background:rgba(47,224,165,.06);
}
.toc-empty{font-size:13px;color:var(--text-3);}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,.02);
  transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.side-link:hover{color:var(--brand);border-color:rgba(47,224,165,.42);transform:translateX(3px);}
.side-link span.num{font-family:var(--mono-num);color:var(--amber);font-size:13px;font-weight:700;}
.cta-mini{
  padding:22px;
  border-radius:var(--r-card);
  background:linear-gradient(150deg,rgba(47,224,165,.16),rgba(47,224,165,.03));
  border:1px solid rgba(47,224,165,.3);
  box-shadow:0 10px 30px rgba(47,224,165,.14);
}
.cta-mini h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.cta-mini p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px;}
.cta-mini .btn{width:100%;}
/* ---------- 标签 / 上下篇 / 相关 ---------- */
.tag-block{margin-top:44px;}
.tag-block h2{font-size:15px;font-weight:700;color:var(--text-2);letter-spacing:.02em;margin-bottom:14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-list a{
  font-size:13px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.tag-list a:hover{color:var(--brand);border-color:rgba(47,224,165,.45);transform:translateY(-2px);}
.pager{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  margin-top:52px;
}
.pager-card{
  padding:20px 22px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.pager-card .dir{
  display:flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--text-3);font-weight:600;
}
.pager-card strong{font-size:16px;font-weight:700;color:var(--text);transition:color .25s ease;}
.pager-card:hover strong{color:var(--brand);}
.pager-card .dir .arrow{transition:transform .25s ease;}
.pager-card:hover .dir .arrow{transform:translateX(-3px);}
.pager-card.next:hover .dir .arrow{transform:translateX(3px);}
.related{margin-top:76px;}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:24px;}
.related-head h2{font-size:22px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.related-card{overflow:hidden;display:flex;flex-direction:column;}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.related-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;}
.related-card h3{font-size:17px;font-weight:600;transition:color .25s ease;}
.related-card:hover h3{color:var(--brand);}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.related-card .time{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:6px;letter-spacing:.02em;}
.back-row{margin-top:52px;}
/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-big);
  border:1px solid rgba(47,224,165,.28);
  background:linear-gradient(120deg,rgba(47,224,165,.18),rgba(11,30,24,.6) 55%,rgba(243,178,60,.14));
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  box-shadow:0 20px 60px rgba(47,224,165,.16);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,165,.35),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:27px;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;position:relative;z-index:1;}
/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--gap-section);
  padding-top:56px;
  position:relative;
  background:linear-gradient(180deg,rgba(11,30,24,.4),rgba(7,21,18,.95));
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(47,224,165,.7),rgba(47,224,165,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand-name{font-size:18px;font-weight:700;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-list{display:flex;flex-direction:column;gap:11px;}
.footer-list a{font-size:14px;color:var(--text-2);}
.footer-list a:hover{color:var(--brand);transform:translateX(2px);display:inline-block;}
.footer-group-toggle{display:none;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);animation:revealIn .5s ease forwards;}
@keyframes revealIn{to{opacity:1;transform:translateY(0);}}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--gap-section:72px;}
  .container{padding:0 28px;}
  .main-nav{gap:20px;}
  .nav-link{font-size:14px;}
  .read-wrap{grid-template-columns:1fr;gap:40px;}
  .aside-inner{position:static;}
  .aside-inner .panel, .aside-inner .cta-mini{max-width:100%;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  h1,.article-title{font-size:32px;}
  .article-body h2{font-size:24px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .cta-actions{flex-wrap:wrap;}
}
@media (max-width:768px){
  :root{--gap-section:56px;}
  .container{padding:0 20px;}
  .main-nav,.header-actions .btn{display:none;}
  .hamburger{display:flex;}
  .header-actions{margin-left:auto;}
  .crumb-bar{padding-top:96px;}
  h1,.article-title{font-size:26px;line-height:1.3;}
  h2{font-size:21px;}
  .lead{font-size:15.5px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;padding-left:12px;}
  .article-body h3{font-size:17px;}
  .pager{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;border-radius:20px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--line-soft);padding:4px 0;}
  .footer-title{display:none;}
  .footer-group-toggle{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;padding:16px 0;
    font-size:15px;font-weight:600;color:var(--text);
  }
  .footer-group-toggle span{transition:transform .25s ease;color:var(--brand);}
  .footer-col:not(.collapsed) .footer-group-toggle span{transform:rotate(45deg);}
  .footer-col .footer-list{display:none;padding-bottom:14px;}
  .footer-col:not(.collapsed) .footer-list{display:flex;}
  .footer-brand{margin-bottom:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .meta-row{font-size:12.5px;}
  .breadcrumb{font-size:12.5px;}
  .article-body{font-size:15.5px;}
}

/* roulang page: category2 */
:root{
  --bg:#071512;
  --bg2:#0B1E18;
  --primary:#2FE0A5;
  --primary-deep:#17C08A;
  --amber:#F3B23C;
  --text:#E6F3EE;
  --text2:#9FB5AD;
  --text3:#6E837C;
  --line:rgba(120,230,190,0.16);
  --line-soft:rgba(120,230,190,0.09);
  --glass:linear-gradient(160deg,rgba(255,255,255,0.07),rgba(255,255,255,0.02));
  --radius-card:18px;
  --radius-lg:24px;
  --radius-img:14px;
  --shadow-s:0 4px 16px rgba(0,0,0,0.28);
  --shadow-m:0 12px 36px rgba(0,0,0,0.36);
  --glow:0 0 0 1px rgba(47,224,165,0.35), 0 10px 34px rgba(47,224,165,0.25);
  --danger:#FF7A6B;
  --ease:0.3s cubic-bezier(0.22,0.61,0.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(47,224,165,0.28);color:#04140F;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:0.02em;
  color:var(--primary);
  padding:5px 14px;border-radius:999px;
  border:1px solid rgba(47,224,165,0.35);
  background:rgba(47,224,165,0.06);
}
.eyebrow.grain{color:var(--amber);border-color:rgba(243,178,60,0.4);background:rgba(243,178,60,0.08);}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:0.01em;}
h1{font-size:40px;font-weight:800;line-height:1.2;}
h2{font-size:28px;font-weight:700;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
p{margin:0;}
.lead{font-size:16px;line-height:1.9;color:var(--text2);}
.muted{color:var(--text2);}
.tiny{font-size:13px;font-weight:500;letter-spacing:0.02em;color:var(--text3);}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- Header ---------- */
.main-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(7,21,18,0.12);
  border-bottom:1px solid rgba(120,230,190,0.08);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.main-header.scrolled{
  background:rgba(11,30,24,0.92);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-m);
}
@supports((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .main-header.scrolled{
    background:rgba(11,30,24,0.78);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    backdrop-filter:blur(14px) saturate(120%);
  }
}
.header-inner{display:flex;align-items:center;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(47,224,165,0.22),rgba(243,178,60,0.12));
  border:1px solid rgba(47,224,165,0.35);
  box-shadow:0 6px 18px rgba(47,224,165,0.18);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:0.01em;color:var(--text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:12px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text2);
  padding:6px 2px;line-height:1.4;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,224,165,0));
  opacity:0;transform:scaleX(0.4);transform-origin:left;
  transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{opacity:0.5;transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(47,224,165,0.7);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;
  color:var(--text2);border:1px solid transparent;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line);background:rgba(47,224,165,0.06);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,0.03);
  place-items:center;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:3px auto;transition:transform var(--ease),opacity var(--ease);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;
  padding:13px 26px;min-height:44px;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{
  color:#062119;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,165,0.5),0 14px 40px rgba(47,224,165,0.35);}
.btn-primary:active{transform:translateY(0);filter:brightness(0.96);}
.btn-ghost{
  color:var(--text);
  border:1px solid rgba(47,224,165,0.4);
  background:transparent;
}
.btn-ghost:hover{background:rgba(47,224,165,0.08);border-color:rgba(47,224,165,0.7);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(47,224,165,0.14);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--primary);
  padding:6px 0;min-height:44px;
}
.btn-text .arrow{transition:transform var(--ease);}
.btn-text:hover .arrow{transform:translateX(3px);}
.btn-text:hover{color:#7BF2C8;}

/* ---------- Hero / channel head ---------- */
.page-hero{
  position:relative;
  padding:140px 0 72px;
  background-color:var(--bg2);
  background-image:
    radial-gradient(900px 420px at 12% 0%,rgba(47,224,165,0.16),transparent 62%),
    radial-gradient(700px 380px at 96% 18%,rgba(243,178,60,0.12),transparent 65%),
    linear-gradient(180deg,rgba(7,21,18,0.82),rgba(7,21,18,0.96)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover,cover,cover;
  background-position:center,center,center,center;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 30% 20%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000,transparent 78%);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text3);margin-bottom:22px;}
.crumb a{color:var(--text2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:rgba(110,131,124,0.7);}
.crumb .current{color:var(--text);}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy h1{margin:18px 0 18px;}
.hero-copy .lead{max-width:560px;font-size:17px;}
.hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-m);
  aspect-ratio:16/11;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(47,224,165,0.16),rgba(7,21,18,0.55) 68%);
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--text);
  background:rgba(7,21,18,0.72);border:1px solid var(--line);
}
.dot{width:7px;height:7px;border-radius:999px;background:var(--primary);box-shadow:0 0 10px rgba(47,224,165,0.9);display:inline-block;}

/* ---------- Anchor pills ---------- */
.anchor-bar{
  position:sticky;top:70px;z-index:50;
  background:rgba(11,30,24,0.92);
  border-bottom:1px solid var(--line-soft);
  transition:background var(--ease);
}
@supports((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .anchor-bar{-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);}
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:0.02em;color:var(--text2);
  border:1px solid var(--line);background:rgba(255,255,255,0.03);
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.pill:hover{color:var(--text);border-color:rgba(47,224,165,0.5);background:rgba(47,224,165,0.08);transform:translateY(-2px);}
.pill:active{transform:translateY(0);}

/* ---------- Cards ---------- */
.glass-card{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-s);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
@supports((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .glass-card{-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);}
}
.glass-card:hover{border-color:rgba(120,230,190,0.34);transform:translateY(-4px);box-shadow:var(--shadow-m);}
.card-pad{padding:26px;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:0.02em;
  padding:4px 12px;border-radius:999px;
}
.badge-mint{color:var(--primary);border:1px solid rgba(47,224,165,0.38);background:rgba(47,224,165,0.08);}
.badge-grain{color:#20160A;background:var(--amber);}
.badge-plain{color:var(--text2);border:1px solid var(--line);background:rgba(255,255,255,0.03);}

.section-head{margin-bottom:44px;max-width:760px;}
.section-head h2{margin:14px 0 12px;}
.section-head p{color:var(--text2);}

/* ---------- Split blocks ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-m);aspect-ratio:16/11;position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(47,224,165,0.14),rgba(7,21,18,0.5) 70%);}
.split-body h2{margin-bottom:16px;}
.split-body p + p{margin-top:16px;}
.feature-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px;}
.feature-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--text2);line-height:1.8;
}
.feature-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(47,224,165,0.6);
}

/* ---------- Compare card ---------- */
.compare{border-radius:var(--radius-lg);border:1px solid var(--line);overflow:hidden;background:rgba(255,255,255,0.02);box-shadow:var(--shadow-s);}
.compare-row{
  display:grid;grid-template-columns:1.05fr 1.35fr 1.35fr;
  gap:18px;padding:20px 26px;border-top:1px solid var(--line-soft);
  transition:background var(--ease);
}
.compare-row:first-child{border-top:0;}
.compare-row:hover{background:rgba(47,224,165,0.05);}
.compare-head{background:rgba(47,224,165,0.07);font-size:13px;font-weight:600;letter-spacing:0.02em;color:var(--primary);}
.compare-head:hover{background:rgba(47,224,165,0.07);}
.compare-name{font-size:15px;font-weight:700;color:var(--text);}
.compare-cell{font-size:15px;color:var(--text2);line-height:1.8;}
.compare-label{display:none;font-size:12px;font-weight:600;color:var(--text3);letter-spacing:0.02em;margin-bottom:4px;}

/* ---------- Data band ---------- */
.data-band{
  position:relative;overflow:hidden;
  background:var(--bg2);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
  padding:72px 0;
}
.data-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 260px at 8% 10%,rgba(47,224,165,0.2),transparent 66%),
    radial-gradient(520px 260px at 92% 90%,rgba(243,178,60,0.16),transparent 68%);
}
.data-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.data-item{padding:6px 28px;border-left:1px solid rgba(120,230,190,0.14);}
.data-item:first-child{border-left:0;padding-left:0;}
.data-value{font-size:44px;font-weight:700;line-height:1.1;color:var(--amber);font-variant-numeric:tabular-nums;}
.data-value em{font-style:normal;font-size:15px;font-weight:600;color:var(--text2);margin-left:8px;}
.data-label{font-size:13px;font-weight:500;letter-spacing:0.02em;color:var(--text2);margin-top:8px;line-height:1.7;}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;margin-top:8px;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:flex-start;
  padding:22px 24px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--glass);
  transition:border-color var(--ease),transform var(--ease);
}
.step:hover{border-color:rgba(120,230,190,0.34);transform:translateY(-3px);}
.step-no{
  font-size:22px;font-weight:800;color:var(--amber);font-variant-numeric:tabular-nums;
  line-height:1.3;
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:15px;color:var(--text2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(120,230,190,0.32);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  display:grid;place-items:center;font-size:16px;font-weight:700;line-height:1;
  color:var(--primary);border:1px solid rgba(47,224,165,0.4);
  transition:transform var(--ease),color var(--ease),border-color var(--ease);
}
.faq-item[open] .faq-plus{transform:rotate(45deg);color:var(--amber);border-color:rgba(243,178,60,0.5);}
.faq-answer{
  padding:0 24px 22px 24px;
  border-left:2px solid var(--primary);
  margin:0 0 4px 24px;
  padding-left:18px;
  font-size:15px;line-height:1.85;color:var(--text2);
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid rgba(47,224,165,0.3);
  background:linear-gradient(135deg,rgba(47,224,165,0.18),rgba(243,178,60,0.1) 70%,rgba(7,21,18,0.4));
  padding:48px 44px;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:var(--glow);
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:var(--text2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  background:var(--bg2);
  padding:72px 0 32px;
  border-top:1px solid transparent;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,224,165,0.9),rgba(47,224,165,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{display:block;font-size:20px;font-weight:700;margin-bottom:14px;}
.footer-brand p{font-size:15px;color:var(--text2);line-height:1.85;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:0.02em;}
.footer-list{display:flex;flex-direction:column;gap:10px;overflow:hidden;max-height:0;transition:max-height var(--ease),padding var(--ease);}
.footer-list a{font-size:15px;color:var(--text2);}
.footer-list a:hover{color:var(--primary);transform:translateX(2px);display:inline-block;}
.footer-group-toggle{
  display:flex;width:100%;align-items:center;justify-content:space-between;
  padding:12px 0;font-size:14px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line-soft);
}
.footer-group-toggle span{color:var(--primary);transition:transform var(--ease);}
.footer-col.open .footer-group-toggle span{transform:rotate(45deg);}
.footer-col.open .footer-list{max-height:320px;padding-top:14px;}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text3);letter-spacing:0.02em;
}

/* ---------- Drawer ---------- */
.drawer-backdrop{
  position:fixed;inset:0;z-index:70;background:rgba(4,12,10,0.7);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-backdrop.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(11,30,24,0.96);
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
  padding:22px 22px 32px;overflow-y:auto;
  display:flex;flex-direction:column;
}
@supports((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .mobile-drawer{-webkit-backdrop-filter:blur(16px) saturate(120%);backdrop-filter:blur(16px) saturate(120%);}
}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:12px 4px;font-size:16px;font-weight:600;color:var(--text2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a:hover{color:var(--primary);}
.drawer-nav a.active{color:var(--primary);}
.drawer-foot{margin-top:26px;display:grid;gap:14px;}
.drawer-tip{font-size:13px;color:var(--text3);letter-spacing:0.02em;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 28px;}
  .section{padding:72px 0;}
  .page-hero{padding:124px 0 56px;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .data-grid{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .data-item{padding:0 22px;border-left:1px solid rgba(120,230,190,0.14);}
  .data-item:nth-child(odd){border-left:0;padding-left:0;}
  .compare-row{grid-template-columns:1fr;gap:12px;padding:18px 20px;}
  .compare-head{display:none;}
  .compare-label{display:block;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  h1{font-size:26px;}
  h2{font-size:21px;}
  h3{font-size:17px;}
  body{font-size:15.5px;}
  .main-nav{display:none;}
  .header-actions .btn-primary{display:none;}
  .hamburger{display:grid;}
  .header-inner{height:62px;gap:16px;}
  .anchor-bar{top:62px;}
  .page-hero{padding:110px 0 48px;}
  .page-hero{background-image:
    radial-gradient(600px 300px at 20% 0%,rgba(47,224,165,0.16),transparent 66%),
    linear-gradient(180deg,rgba(7,21,18,0.86),rgba(7,21,18,0.97)),
    url('/assets/images/backpic/back-2.png');}
  .data-grid{grid-template-columns:1fr;row-gap:26px;}
  .data-item{border-left:0;padding-left:0;border-top:1px solid rgba(120,230,190,0.14);padding-top:22px;}
  .data-item:first-child{border-top:0;padding-top:0;}
  .data-value{font-size:36px;}
  .step{grid-template-columns:1fr;gap:8px;padding:20px;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .card-pad{padding:22px;}
}
@media (min-width:768px){
  .footer-group-toggle{display:none;}
  .footer-list{max-height:none;padding-top:0;overflow:visible;}
  .footer-col > .footer-title + .footer-list{margin-top:0;}
}

/* roulang page: category1 */
:root{
    --bg:#071512;
    --bg-2:#0B1E18;
    --jade:#2FE0A5;
    --jade-deep:#17C08A;
    --amber:#F3B23C;
    --text:#E6F3EE;
    --text-2:#9FB5AD;
    --text-3:#6E837C;
    --line:rgba(120,230,190,.16);
    --line-strong:rgba(47,224,165,.42);
    --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
    --glass-flat:rgba(11,30,24,.92);
    --r-card:18px;
    --r-lg:24px;
    --r-img:14px;
    --r-input:12px;
    --r-pill:999px;
    --sh-1:0 4px 16px rgba(0,0,0,.28);
    --sh-2:0 12px 36px rgba(0,0,0,.36);
    --sh-glow:0 0 0 1px rgba(47,224,165,.35), 0 10px 34px rgba(47,224,165,.25);
    --sec-pc:96px;
    --sec-tb:72px;
    --sec-mb:56px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.nav-open{overflow:hidden;}
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p,figure,blockquote{margin:0;}
  :focus-visible{outline:2px solid var(--jade);outline-offset:3px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 40px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:80;
    background:rgba(7,21,18,.12);
    border-bottom:1px solid rgba(120,230,190,.10);
    transition:background .3s ease, box-shadow .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  }
  .site-header.is-scrolled{
    background:rgba(7,21,18,.86);
    backdrop-filter:blur(14px) saturate(130%);
    -webkit-backdrop-filter:blur(14px) saturate(130%);
    border-bottom-color:rgba(120,230,190,.20);
    box-shadow:0 10px 30px rgba(0,0,0,.38);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:74px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:10px;
    background:linear-gradient(150deg, rgba(47,224,165,.22), rgba(47,224,165,.05));
    border:1px solid rgba(47,224,165,.40);
    box-shadow:0 0 18px rgba(47,224,165,.20);
  }
  .brand-mark svg{width:18px;height:18px;display:block;}
  .brand-text{
    font-size:17px;
    font-weight:700;
    letter-spacing:.01em;
    color:var(--text);
    white-space:nowrap;
  }
  .main-nav{display:flex;align-items:center;gap:30px;}
  .nav-link{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:var(--text-2);
    padding:6px 0;
    transition:color .25s ease;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--jade),rgba(47,224,165,0));
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .28s ease;
    box-shadow:0 0 12px rgba(47,224,165,.75);
  }
  .nav-link:hover{color:var(--text);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--text);font-weight:700;}
  .nav-link.active::after{transform:scaleX(1);}
  .header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
  .icon-btn{
    width:40px;height:40px;
    display:inline-grid;place-items:center;
    border-radius:var(--r-pill);
    border:1px solid rgba(120,230,190,.20);
    background:rgba(255,255,255,.03);
    color:var(--text-2);
    transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;
  }
  .icon-btn:hover{color:var(--jade);border-color:var(--line-strong);background:rgba(47,224,165,.10);transform:translateY(-1px);}
  .icon-btn:active{transform:translateY(0);}
  .icon-btn svg{width:18px;height:18px;display:block;}
  .nav-toggle{display:none;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--r-pill);
    font-weight:700;
    font-size:15px;
    padding:14px 26px;
    min-height:44px;
    transition:transform .25s ease, filter .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--jade),var(--jade-deep));
    color:#062119;
    box-shadow:var(--sh-glow);
  }
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,224,165,.55),0 16px 40px rgba(47,224,165,.32);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{
    background:transparent;
    border:1px solid rgba(47,224,165,.40);
    color:var(--text);
  }
  .btn-ghost:hover{background:rgba(47,224,165,.08);border-color:var(--jade);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-text{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-weight:700;
    font-size:15px;
    color:var(--jade);
    padding-bottom:2px;
    border-bottom:1px solid rgba(47,224,165,.35);
    transition:color .25s ease,border-color .25s ease;
  }
  .btn-text .arrow{transition:transform .25s ease;}
  .btn-text:hover{border-color:var(--jade);}
  .btn-text:hover .arrow{transform:translateX(4px);}
  .btn-sm{padding:10px 20px;font-size:14px;min-height:40px;}

  /* ---------- 移动端抽屉 ---------- */
  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(4,12,10,.62);
    backdrop-filter:blur(3px);
    -webkit-backdrop-filter:blur(3px);
    z-index:90;
    opacity:0;visibility:hidden;
    transition:opacity .3s ease,visibility .3s ease;
  }
  .drawer-mask.show{opacity:1;visibility:visible;}
  .mobile-drawer{
    position:fixed;
    top:0;right:0;
    width:100%;
    max-width:420px;
    height:100%;
    z-index:95;
    padding:22px 22px 32px;
    display:flex;
    flex-direction:column;
    gap:22px;
    background:linear-gradient(165deg, rgba(11,30,24,.98), rgba(7,21,18,.98));
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border-left:1px solid var(--line);
    transform:translateX(104%);
    transition:transform .34s cubic-bezier(.22,.61,.36,1);
    overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;}
  .drawer-nav{display:flex;flex-direction:column;}
  .drawer-nav a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:48px;
    padding:12px 4px;
    font-size:16px;
    color:var(--text-2);
    border-bottom:1px solid rgba(120,230,190,.12);
    transition:color .25s ease,padding-left .25s ease;
  }
  .drawer-nav a:hover,.drawer-nav a.active{color:var(--jade);padding-left:8px;}
  .drawer-nav a.active{font-weight:700;}
  .drawer-contact{font-size:13px;line-height:1.9;color:var(--text-3);}
  .w-full{width:100%;}

  /* ---------- 页面头 ---------- */
  .page-hero{
    position:relative;
    padding:148px 0 72px;
    overflow:hidden;
    background-image:
      radial-gradient(760px 420px at 12% 8%, rgba(47,224,165,.20), rgba(47,224,165,0) 70%),
      radial-gradient(620px 380px at 88% 22%, rgba(243,178,60,.14), rgba(243,178,60,0) 72%),
      linear-gradient(180deg, rgba(7,21,18,.72), rgba(7,21,18,.96)),
      url('/assets/images/backpic/back-1.webp');
    background-size:cover, cover, cover, cover;
    background-position:center, center, center, center;
    background-repeat:no-repeat;
  }
  .page-hero::after{
    content:"";
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(120,230,190,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(120,230,190,.05) 1px, transparent 1px);
    background-size:64px 64px;
    opacity:.35;
    pointer-events:none;
  }
  .page-hero .container{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    font-weight:500;
    letter-spacing:.02em;
    color:var(--text-3);
    margin-bottom:22px;
  }
  .breadcrumb a{color:var(--text-3);transition:color .25s ease;}
  .breadcrumb a:hover{color:var(--jade);}
  .breadcrumb .sep{color:rgba(110,131,124,.6);}
  .breadcrumb [aria-current="page"]{color:var(--text);}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.02em;
    padding:5px 14px;
    border-radius:var(--r-pill);
    line-height:1.6;
  }
  .badge-jade{color:var(--jade);border:1px solid rgba(47,224,165,.40);background:rgba(47,224,165,.07);}
  .badge-amber{color:#3B2A05;background:linear-gradient(135deg,#F3B23C,#E09A22);}
  .badge-soft{color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);}

  h1{
    font-size:40px;
    line-height:1.2;
    font-weight:800;
    letter-spacing:.005em;
    margin:20px 0 18px;
    max-width:860px;
  }
  .lead{
    font-size:17px;
    line-height:1.9;
    color:var(--text-2);
    max-width:720px;
  }
  .hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:500;
    color:var(--text-2);
    padding:8px 16px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:var(--glass);
  }
  .chip svg{width:15px;height:15px;color:var(--jade);flex-shrink:0;}

  /* ---------- 主体栅格 ---------- */
  .layout{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    gap:56px;
    padding-top:80px;
    padding-bottom:96px;
    align-items:start;
  }
  .toc{
    grid-column:span 3;
    position:sticky;
    top:104px;
    padding:22px 20px;
    border-radius:var(--r-card);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
  }
  .toc-title{
    font-size:13px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--text-3);
    margin-bottom:14px;
  }
  .toc-nav{display:flex;flex-direction:column;gap:2px;}
  .toc-link{
    display:block;
    font-size:14px;
    line-height:1.6;
    color:var(--text-2);
    padding:9px 10px;
    border-radius:10px;
    border-left:2px solid transparent;
    transition:color .25s ease,background .25s ease,border-color .25s ease,padding-left .25s ease;
  }
  .toc-link:hover{color:var(--text);background:rgba(47,224,165,.07);padding-left:14px;}
  .toc-link.active{color:var(--jade);border-left-color:var(--jade);background:rgba(47,224,165,.08);font-weight:600;}
  .toc-note{
    margin-top:16px;
    padding-top:14px;
    border-top:1px solid rgba(120,230,190,.14);
    font-size:13px;
    line-height:1.85;
    color:var(--text-3);
  }

  .content{grid-column:span 9;display:flex;flex-direction:column;gap:72px;min-width:0;}

  .sec{scroll-margin-top:104px;}
  .sec-title{
    font-size:28px;
    line-height:1.35;
    font-weight:700;
    letter-spacing:.005em;
    padding-left:16px;
    border-left:3px solid var(--jade);
    box-shadow:inset 1px 0 0 rgba(47,224,165,.0);
    margin-bottom:22px;
  }
  .sec-title::after{content:"";}
  .sec p{color:var(--text-2);font-size:16px;line-height:1.9;}
  .sec p + p{margin-top:16px;}
  .sec strong{color:var(--text);font-weight:700;}

  .media-row{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:32px;
    align-items:center;
  }
  .media-row.rev{grid-template-columns:.95fr 1.05fr;}
  .media-row.rev .media-text{order:2;}
  .media-row.rev .media-fig{order:1;}
  .media-fig{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--glass);
    box-shadow:var(--sh-2);
  }
  .media-fig img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:0;
  }
  .media-fig figcaption{
    font-size:13px;
    color:var(--text-3);
    padding:12px 16px;
    border-top:1px solid rgba(120,230,190,.12);
    line-height:1.7;
  }

  .check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
  .check-list li{
    position:relative;
    padding-left:22px;
    font-size:15.5px;
    line-height:1.85;
    color:var(--text-2);
  }
  .check-list li::before{
    content:"";
    position:absolute;
    left:0;top:11px;
    width:8px;height:8px;
    border-radius:2px;
    background:var(--jade);
    box-shadow:0 0 10px rgba(47,224,165,.6);
  }
  .check-list li b{color:var(--text);font-weight:700;}

  /* 时间轴 */
  .timeline{position:relative;padding-left:12px;display:flex;flex-direction:column;gap:26px;}
  .timeline::before{
    content:"";
    position:absolute;
    left:33px;top:14px;bottom:14px;
    width:1px;
    background:linear-gradient(180deg, rgba(47,224,165,.55), rgba(47,224,165,.06));
  }
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:56px 1fr;
    gap:18px;
    align-items:start;
    padding:20px 22px 20px 8px;
    border-radius:var(--r-card);
    transition:background .3s ease;
  }
  .tl-item:hover{background:rgba(255,255,255,.025);}
  .tl-num{
    width:44px;height:44px;
    display:grid;place-items:center;
    border-radius:var(--r-pill);
    font-variant-numeric:tabular-nums;
    font-weight:800;
    font-size:15px;
    color:#062119;
    background:linear-gradient(135deg,var(--jade),var(--jade-deep));
    box-shadow:0 0 0 6px rgba(47,224,165,.10);
    position:relative;
    z-index:2;
  }
  .tl-body h3{
    font-size:18px;
    font-weight:700;
    color:var(--text);
    margin-bottom:6px;
  }
  .tl-body p{font-size:15.5px;color:var(--text-2);line-height:1.85;}

  /* 要点玻璃卡 */
  .points-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:20px;
  }
  .point-card{
    padding:24px 22px;
    border-radius:var(--r-card);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--sh-1);
    transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  }
  .point-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
  .point-card h3{
    font-size:18px;
    font-weight:600;
    color:var(--text);
    margin-bottom:8px;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .point-card h3 span.dot{
    width:8px;height:8px;border-radius:50%;
    background:var(--amber);
    box-shadow:0 0 10px rgba(243,178,60,.7);
    flex-shrink:0;
  }
  .point-card p{font-size:15.5px;color:var(--text-2);line-height:1.85;}

  /* 有序说明 */
  .steps-list{display:flex;flex-direction:column;gap:14px;counter-reset:s;}
  .steps-list li{
    counter-increment:s;
    position:relative;
    padding:16px 20px 16px 58px;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:rgba(255,255,255,.028);
    font-size:15.5px;
    line-height:1.85;
    color:var(--text-2);
    transition:border-color .3s ease, background .3s ease;
  }
  .steps-list li:hover{border-color:var(--line-strong);background:rgba(47,224,165,.06);}
  .steps-list li::before{
    content:counter(s);
    position:absolute;
    left:18px;top:50%;
    transform:translateY(-50%);
    width:26px;height:26px;
    display:grid;place-items:center;
    border-radius:50%;
    font-size:13px;
    font-weight:700;
    font-variant-numeric:tabular-nums;
    color:var(--amber);
    border:1px solid rgba(243,178,60,.45);
    background:rgba(243,178,60,.08);
  }
  .steps-list li b{color:var(--text);font-weight:700;}

  .mini-cta{
    margin-top:26px;
    padding-top:18px;
    border-top:1px solid rgba(120,230,190,.12);
    font-size:15px;
    color:var(--text-2);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
  }

  /* 对比卡 */
  .compare{
    border-radius:var(--r-card);
    border:1px solid var(--line);
    overflow:hidden;
    background:rgba(255,255,255,.022);
  }
  .compare-row{
    display:grid;
    grid-template-columns:.9fr 1.1fr;
    gap:16px;
    padding:18px 22px;
    align-items:start;
    border-bottom:1px solid rgba(120,230,190,.10);
  }
  .compare-row:last-child{border-bottom:none;}
  .compare-row.head{background:rgba(47,224,165,.07);}
  .compare-row.head span{font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--jade);}
  .compare-row .k{font-size:15.5px;font-weight:600;color:var(--text);}
  .compare-row .v{font-size:15.5px;color:var(--text-2);line-height:1.85;}

  /* FAQ */
  .faq-list{display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:var(--glass);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    overflow:hidden;
    transition:border-color .3s ease, box-shadow .3s ease;
  }
  .faq-item:hover{border-color:var(--line-strong);box-shadow:var(--sh-1);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 22px;
    font-size:16.5px;
    font-weight:600;
    color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary .plus{
    flex-shrink:0;
    width:26px;height:26px;
    display:grid;place-items:center;
    border-radius:50%;
    border:1px solid rgba(120,230,190,.28);
    color:var(--jade);
    font-size:16px;
    line-height:1;
    transition:transform .3s ease, background .3s ease, border-color .3s ease;
  }
  .faq-item[open] summary .plus{transform:rotate(45deg);background:rgba(47,224,165,.12);border-color:var(--line-strong);}
  .faq-body{
    padding:0 22px 22px 24px;
    border-left:2px solid rgba(47,224,165,.55);
    margin:0 0 0 22px;
    font-size:15.5px;
    line-height:1.85;
    color:var(--text-2);
  }
  .faq-body p + p{margin-top:12px;}

  /* CTA 带 */
  .cta-band{
    position:relative;
    padding:64px 0;
    background:
      radial-gradient(620px 260px at 18% 20%, rgba(47,224,165,.20), rgba(47,224,165,0) 70%),
      radial-gradient(540px 240px at 82% 80%, rgba(243,178,60,.16), rgba(243,178,60,0) 72%),
      linear-gradient(120deg, rgba(47,224,165,.10), rgba(243,178,60,.06));
    border-top:1px solid rgba(120,230,190,.16);
    border-bottom:1px solid rgba(120,230,190,.16);
  }
  .cta-inner{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:26px;
  }
  .cta-band h2{font-size:26px;font-weight:700;line-height:1.35;}
  .cta-band p{color:var(--text-2);font-size:15.5px;margin-top:8px;max-width:600px;}
  .cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    padding:64px 0 30px;
    background:var(--bg-2);
    margin-top:0;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg, rgba(47,224,165,.85), rgba(47,224,165,0));
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:38px;
    border-bottom:1px solid rgba(120,230,190,.12);
  }
  .footer-brand .brand-name{
    display:block;
    font-size:18px;
    font-weight:700;
    margin-bottom:12px;
  }
  .footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:340px;}
  .footer-title{
    font-size:13px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--text-3);
    margin-bottom:14px;
  }
  .footer-group-toggle{
    display:flex;
    width:100%;
    align-items:center;
    justify-content:space-between;
    font-size:14px;
    font-weight:700;
    color:var(--text);
    padding:12px 0;
    border-bottom:1px solid rgba(120,230,190,.12);
    letter-spacing:.04em;
  }
  .footer-group-toggle span{color:var(--jade);font-size:16px;transition:transform .25s ease;}
  .footer-list{display:none;flex-direction:column;gap:10px;padding-top:12px;}
  .footer-col.open .footer-list{display:flex;}
  .footer-list a{
    font-size:14px;
    color:var(--text-2);
    transition:color .25s ease, transform .25s ease;
  }
  .footer-list a:hover{color:var(--jade);transform:translateX(2px);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:22px;
    font-size:13px;
    color:var(--text-3);
  }

  /* 入场动效 */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease, transform .5s ease;}
  .reveal.in{opacity:1;transform:none;}

  /* 滚动条 */
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#05100D;}
  ::-webkit-scrollbar-thumb{background:rgba(47,224,165,.28);border-radius:999px;border:2px solid #05100D;}
  ::-webkit-scrollbar-thumb:hover{background:rgba(47,224,165,.45);}

  /* backdrop-filter 降级 */
  @supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
    .toc,.point-card,.faq-item,.chip,.mobile-drawer{background:var(--glass-flat);}
    .site-header.is-scrolled{background:rgba(7,21,18,.96);}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .container{padding:0 28px;}
    h1{font-size:32px;}
    .layout{grid-template-columns:1fr;gap:32px;padding-top:56px;padding-bottom:72px;}
    .toc{grid-column:auto;position:static;top:auto;padding:14px 16px;border-radius:var(--r-card);}
    .toc-title{display:none;}
    .toc-nav{
      flex-direction:row;
      overflow-x:auto;
      gap:10px;
      padding-bottom:4px;
      scrollbar-width:none;
    }
    .toc-nav::-webkit-scrollbar{display:none;}
    .toc-link{
      white-space:nowrap;
      border-left:none;
      border:1px solid var(--line);
      border-radius:var(--r-pill);
      padding:8px 16px;
      font-size:13.5px;
      background:rgba(255,255,255,.03);
    }
    .toc-link:hover{padding-left:16px;background:rgba(47,224,165,.10);}
    .toc-link.active{border-color:var(--line-strong);background:rgba(47,224,165,.12);}
    .toc-note{display:none;}
    .content{grid-column:auto;gap:64px;}
    .media-row,.media-row.rev{grid-template-columns:1fr;gap:22px;}
    .media-row.rev .media-text{order:2;}
    .media-row.rev .media-fig{order:1;}
    .page-hero{padding:132px 0 60px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px 32px;}
  }

  @media (max-width:767px){
    .container{padding:0 20px;}
    body{font-size:15.5px;}
    h1{font-size:26px;margin:16px 0 14px;}
    .lead{font-size:15.5px;}
    .sec-title{font-size:21px;padding-left:12px;margin-bottom:18px;}
    .main-nav{display:none;}
    .nav-toggle{display:inline-grid;}
    .header-inner{height:66px;gap:12px;}
    .brand-text{font-size:16px;}
    .header-actions .btn-sm{display:none;}
    .content{gap:56px;}
    .layout{padding-top:44px;padding-bottom:56px;}
    .points-grid{grid-template-columns:1fr;}
    .timeline{padding-left:0;}
    .timeline::before{left:22px;}
    .tl-item{grid-template-columns:48px 1fr;gap:14px;padding:16px 12px 16px 0;}
    .tl-num{width:40px;height:40px;font-size:14px;}
    .compare-row,.compare-row.head{grid-template-columns:1fr;gap:6px;padding:16px 18px;}
    .cta-band{padding:48px 0;}
    .cta-band h2{font-size:21px;}
    .cta-inner{flex-direction:column;align-items:flex-start;}
    .cta-actions{width:100%;flex-direction:column;align-items:stretch;}
    .cta-actions .btn{width:100%;}
    .cta-actions .btn-text{justify-content:center;}
    .footer-grid{grid-template-columns:1fr;gap:4px;}
    .footer-brand{margin-bottom:24px;}
    .footer-title{display:none;}
    .footer-list{display:none;}
    .footer-col.open .footer-list{display:flex;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .page-hero{padding:118px 0 48px;}
    .sec,.toc{scroll-margin-top:84px;}
  }

  @media (min-width:768px){
    .footer-col .footer-list{display:flex;}
    .footer-group-toggle{display:none;}
  }