/* roulang page: index */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-1:#EAF6F6;
  --text-2:#D7E7E8;
  --text-3:#A6BFC3;
  --text-4:#6E8A90;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --paper:#F2F7F7;
  --paper-text:#0B2A30;
  --paper-text-2:#41616A;
  --r-card:16px;
  --r-img:12px;
  --r-pill:999px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--tone-glow);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--text-1);}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text-1);font-weight:700;line-height:1.3;letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--tone-glow);outline-offset:3px;border-radius:6px;}
.grid-container{max-width:1200px;width:100%;margin:0 auto;padding-left:40px;padding-right:40px;}
.grid-x.gutter{margin-left:-12px;margin-right:-12px;}
.grid-x.gutter > .cell{padding-left:12px;padding-right:12px;}
.section{padding:96px 0;position:relative;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--tone-glow);margin-bottom:14px;text-transform:uppercase;}
.section h2{font-size:32px;line-height:1.3;margin-bottom:16px;}
.section h3{font-size:20px;line-height:1.4;}
.lead-text{color:var(--text-3);font-size:16px;max-width:620px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:14px 26px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{background:var(--tone-accent);color:#25110A;box-shadow:0 10px 26px -12px rgba(255,122,69,.65);}
.btn-primary:hover{background:#FF9163;color:#25110A;transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(255,122,69,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(255,122,69,.6);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(14,165,160,.55);color:var(--tone-glow);}
.btn-ghost:hover{border-color:var(--tone-glow);color:#CFFFF6;transform:translateY(-2px);box-shadow:inset 0 0 18px rgba(94,234,212,.18),0 0 0 1px rgba(94,234,212,.32);}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 0 10px rgba(94,234,212,.14);}
.btn-sm{padding:10px 20px;font-size:14px;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--tone-glow);font-size:14px;font-weight:600;transition:gap .18s var(--ease),color .18s var(--ease);}
.link-more:hover{gap:11px;color:#CFFFF6;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  background:rgba(4,22,28,.55);border-bottom:1px solid transparent;
  transition:background-color .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-stuck{
  background:rgba(4,22,28,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100%;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);flex:0 0 auto;}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--tone-glow),var(--tone-primary-deep));
  box-shadow:0 8px 20px -10px rgba(14,165,160,.9);flex:0 0 auto;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.5px;white-space:nowrap;color:var(--text-1);}
.brand-text b{color:var(--tone-glow);font-weight:700;}
.brand-text span{color:var(--text-1);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:15px;color:var(--text-3);border-radius:8px;}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--tone-glow);opacity:0;transform:translateY(3px);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{opacity:.35;transform:translateY(0);}
.nav-link.is-active{color:var(--text-1);font-weight:600;}
.nav-link.is-active::after{opacity:1;transform:translateY(0);box-shadow:0 0 10px rgba(94,234,212,.7);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-1);
  font-size:18px;line-height:1;cursor:pointer;transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(94,234,212,.4);background:rgba(94,234,212,.08);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(2,10,13,.62);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,320px);z-index:90;
  background:var(--ink-800);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;margin-bottom:10px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text-1);cursor:pointer;font-size:16px;line-height:1;
}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-2);font-size:15px;border:1px solid transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text-1);}
.drawer-link.is-active{color:var(--tone-glow);border-color:rgba(94,234,212,.3);background:rgba(94,234,212,.08);}
.drawer-cta{margin-top:14px;}

/* ---------- hero ---------- */
.hero{position:relative;padding:80px 0 72px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 380px at 88% 6%,rgba(14,165,160,.20),transparent 70%),
    radial-gradient(520px 320px at 4% 92%,rgba(94,234,212,.10),transparent 72%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 18%,transparent 76%);
  mask-image:radial-gradient(circle at 50% 40%,#000 18%,transparent 76%);
}
.hero .grid-container{position:relative;z-index:2;}
.hero-title{font-size:clamp(30px,4vw,52px);line-height:1.15;margin-bottom:18px;}
.hero-title .hl{color:var(--tone-glow);}
.hero-sub{font-size:17px;color:var(--text-3);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--text-3);font-size:14px;}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--tone-primary);}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow);
  background:linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.hero-media img{width:100%;height:420px;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,22,28,.08),rgba(4,22,28,.74));}
.hero-pills{position:absolute;right:16px;bottom:16px;display:flex;flex-wrap:wrap;gap:8px;z-index:2;}
.pill{
  display:inline-flex;align-items:center;font-size:12px;padding:7px 13px;border-radius:var(--r-pill);
  background:rgba(4,22,28,.72);border:1px solid rgba(94,234,212,.28);color:var(--text-1);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}

/* ---------- trust bar ---------- */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);padding:18px 0;}
.trust-track{display:flex;align-items:center;gap:12px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;}
.trust-track::-webkit-scrollbar{display:none;}
.trust-label{flex:0 0 auto;font-size:12px;letter-spacing:3px;color:var(--tone-glow);padding-right:16px;border-right:1px solid var(--line);}
.trust-chip{
  flex:0 0 auto;font-size:13px;color:var(--text-3);padding:8px 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.trust-chip:hover{color:var(--text-1);border-color:rgba(94,234,212,.32);}

/* ---------- pain ---------- */
.pain-list{list-style:none;display:grid;}
.pain-item{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:22px 0;border-top:1px solid var(--line);}
.pain-item:last-child{border-bottom:1px solid var(--line);}
.pain-num{font-family:Inter,Barlow,"PingFang SC",sans-serif;font-weight:700;font-size:15px;letter-spacing:1px;color:var(--tone-primary);padding-top:3px;}
.pain-item h3{font-size:18px;margin-bottom:6px;}
.pain-item p{margin:0;color:var(--text-3);font-size:15px;line-height:1.7;}

/* ---------- solution ---------- */
.glass-card{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:var(--glass);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);}
.sol-media,.news-media{
  aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(140deg,var(--ink-700),var(--ink-900));
}
.sol-media img,.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.glass-card:hover .sol-media img,.glass-card:hover .news-media img{transform:scale(1.03);}
.sol-body{padding:28px;}
.sol-body h3{font-size:20px;margin:12px 0 10px;}
.sol-body p{color:var(--text-3);font-size:15px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;font-size:12px;padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);border:1px solid rgba(94,234,212,.25);color:var(--tone-glow);letter-spacing:.5px;
}
.sol-side{display:grid;gap:24px;}
.sol-mini{padding:28px;}
.sol-mini h3{font-size:18px;margin-bottom:10px;}
.sol-mini p{font-size:14px;color:var(--text-3);margin-bottom:14px;}
.sol-mini.offset{margin-left:24px;}

/* ---------- stats ---------- */
.stats{background:var(--paper);color:var(--paper-text-2);}
.stats .eyebrow{color:var(--tone-primary-deep);}
.stats h2{color:#08262C;}
.stats .lead-text{color:#41616A;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:34px;
  background:rgba(11,42,48,.12);border-radius:14px;overflow:hidden;border:1px solid rgba(11,42,48,.10);
}
.stat-cell{background:var(--paper);padding:26px 22px;}
.stat-num{font-family:Inter,Barlow,"PingFang SC",sans-serif;font-weight:700;font-size:42px;line-height:1;letter-spacing:-1px;color:#0A2E38;}
.stat-num small{font-size:14px;font-weight:600;letter-spacing:0;margin-left:4px;color:var(--tone-primary-deep);}
.stat-label{margin-top:10px;font-size:14px;color:#41616A;}
.stats-note{margin-top:18px;font-size:13px;color:#5A7A82;}

/* ---------- testimonials ---------- */
.quote-big{
  margin:0;padding:34px;border-radius:var(--r-card);
  background:var(--ink-700);border:1px solid var(--line);position:relative;overflow:hidden;
}
.quote-big::before{
  content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(94,234,212,.16),transparent 70%);
}
.quote-mark{font-family:Inter,Georgia,serif;font-size:44px;line-height:1;color:rgba(94,234,212,.45);display:block;margin-bottom:8px;}
.quote-big p{font-size:19px;line-height:1.8;color:var(--text-1);margin-bottom:20px;position:relative;z-index:1;}
.quote-meta{font-size:13px;color:var(--text-4);}
.quote-list{display:grid;gap:16px;}
.quote-small{padding:22px 24px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);}
.quote-small p{font-size:15px;color:var(--text-2);margin-bottom:12px;}

/* ---------- news ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-lead{display:block;color:inherit;}
.news-lead:hover{color:inherit;}
.news-lead-body{padding:26px 28px;}
.news-lead-body h3{font-size:21px;margin:12px 0 10px;}
.news-lead-body p{color:var(--text-3);font-size:15px;margin-bottom:14px;}
.news-list{display:grid;gap:14px;}
.news-row{
  display:grid;grid-template-columns:160px 1fr;gap:18px;padding:16px;color:inherit;
  border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:transform .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.news-row:hover{color:inherit;border-color:rgba(94,234,212,.3);background:rgba(255,255,255,.055);transform:translateY(-2px);}
.news-thumb{border-radius:10px;overflow:hidden;background:linear-gradient(140deg,var(--ink-700),var(--ink-900));min-height:96px;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-row-body h4{
  font-size:16px;margin:8px 0 6px;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-row-body p{
  font-size:13px;color:var(--text-4);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{font-size:12px;color:var(--text-4);}
.empty-state{
  text-align:center;padding:48px 24px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.18);background:rgba(255,255,255,.03);
}
.empty-state svg{margin:0 auto 6px;color:var(--tone-primary);}
.empty-state p{color:var(--text-3);margin:10px 0 20px;font-size:15px;}

/* ---------- faq ---------- */
.faq{background:var(--paper);color:var(--paper-text-2);}
.faq .eyebrow{color:var(--tone-primary-deep);}
.faq h2{color:#08262C;}
.faq .lead-text{color:#41616A;}
.faq-list{display:grid;gap:12px;margin-top:30px;}
.faq-item{background:#fff;border:1px solid rgba(11,42,48,.10);border-radius:14px;overflow:hidden;transition:box-shadow .18s var(--ease);}
.faq-item.is-open{box-shadow:0 14px 30px -22px rgba(11,42,48,.55);}
.faq-q{
  position:relative;display:flex;align-items:flex-start;gap:14px;width:100%;
  background:none;border:0;padding:20px 22px;text-align:left;cursor:pointer;
  color:#0B2A30;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q .idx{font-family:Inter,Barlow,sans-serif;font-weight:700;font-size:13px;color:var(--tone-primary-deep);padding-top:3px;flex:0 0 auto;}
.faq-q .plus{margin-left:auto;font-size:18px;line-height:1;color:var(--tone-primary-deep);transition:transform .2s var(--ease);flex:0 0 auto;}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--tone-primary);border-radius:0 3px 3px 0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a-inner{padding:0 22px 20px 49px;color:#41616A;font-size:15px;line-height:1.8;}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:20px;padding:44px;
  border:1px solid rgba(94,234,212,.18);
  background:linear-gradient(150deg,rgba(10,46,56,.95),rgba(4,22,28,.98));
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;top:-120px;right:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,165,160,.24),transparent 70%);pointer-events:none;
}
.cta-panel h2{font-size:30px;position:relative;z-index:1;}
.cta-panel .lead-text{position:relative;z-index:1;color:var(--text-3);}
.cta-benefits{list-style:none;display:grid;gap:12px;margin-top:22px;position:relative;z-index:1;}
.cta-benefits li{display:flex;gap:10px;color:var(--text-3);font-size:15px;line-height:1.7;}
.cta-benefits li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--tone-glow);margin-top:10px;flex:0 0 auto;}
.form-card{position:relative;z-index:1;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:26px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:13px 14px;color:var(--text-1);font-size:15px;
  font-family:inherit;line-height:1.6;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-4);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--tone-glow);background:rgba(255,255,255,.08);box-shadow:0 0 0 3px rgba(94,234,212,.14);}
.field.has-error input,.field.has-error textarea{border-color:var(--tone-accent);box-shadow:0 0 0 3px rgba(255,122,69,.14);}
.field-error{display:none;font-size:12px;color:var(--tone-accent);margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-tip{font-size:13px;color:var(--text-4);margin-top:12px;}
.form-msg{display:none;margin-top:12px;font-size:13px;color:var(--tone-glow);}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink-800);border-top:1px solid var(--line);padding:64px 0 24px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-title{font-size:14px;font-weight:600;color:var(--tone-glow);letter-spacing:1px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px;margin-top:16px;}
.footer-links{list-style:none;display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--tone-glow);}
.footer-contact{list-style:none;display:grid;gap:10px;font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-contact a{color:var(--text-3);}
.footer-contact a:hover{color:var(--tone-glow);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-4);
}
.to-top{color:var(--text-3);display:inline-flex;align-items:center;gap:6px;}
.to-top:hover{color:var(--tone-glow);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .grid-container{padding-left:32px;padding-right:32px;}
  .hero-media img{height:360px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .hero{padding:56px 0 56px;}
  .hero-media{margin-top:36px;}
  .hero-media img{height:300px;}
  .sol-side{grid-template-columns:1fr;gap:20px;}
  .sol-mini.offset{margin-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section h2{font-size:28px;}
  .cta-panel{padding:32px;}
  .stat-num{font-size:34px;}
}
@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .glass-card{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(255,255,255,.07);}
  .hero-title{margin-bottom:14px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-media img{height:220px;}
  .hero-pills{left:12px;right:12px;bottom:12px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat-cell{padding:20px 16px;}
  .stat-num{font-size:30px;}
  .quote-big{padding:24px;}
  .quote-big p{font-size:17px;}
  .news-row{grid-template-columns:96px 1fr;gap:14px;padding:14px;}
  .news-lead-body{padding:20px;}
  .news-lead-body h3{font-size:18px;}
  .cta-panel{padding:24px;border-radius:16px;}
  .cta-panel h2{font-size:24px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{font-size:12px;}
  .pain-item{grid-template-columns:40px 1fr;gap:12px;}
  .section h2{font-size:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-sub:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.07);
  --paper:#F2F7F7;
  --paper-ink:#0B2A31;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(94,234,212,.45), 0 10px 30px -8px rgba(14,165,160,.45);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-body);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:-10% -10% auto -10%;
  height:620px;
  background:radial-gradient(60% 60% at 22% 0%,rgba(14,165,160,.20),transparent 70%),
             radial-gradient(50% 50% at 88% 8%,rgba(94,234,212,.12),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--tone-glow);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease);}
a:hover{color:#9FF7E9;}
h1,h2,h3,h4{margin:0;color:var(--text-title);font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--tone-glow);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;position:relative;z-index:1;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--tone-glow);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--tone-glow);opacity:.7;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:32px;line-height:1.3;margin:14px 0 12px;}
.section-head p{color:var(--text-sub);font-size:16px;line-height:1.8;margin:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(4,22,28,.72);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.is-stuck{background:rgba(4,22,28,.90);box-shadow:0 12px 30px -22px rgba(0,0,0,.9);}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.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(14,165,160,.30),rgba(94,234,212,.10));
  border:1px solid rgba(94,234,212,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;color:var(--text-title);letter-spacing:.4px;white-space:nowrap;}
.brand-text .brand-sub{color:var(--tone-glow);font-weight:700;margin-left:5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  font-size:14px;
  color:var(--text-sub);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--tone-glow),var(--tone-primary));
  opacity:0;transition:opacity var(--ease);
}
.nav-link:hover{color:var(--text-title);}
.nav-link:hover::after{opacity:.55;}
.nav-link.is-active{color:var(--text-title);}
.nav-link.is-active::after{opacity:1;box-shadow:0 0 12px rgba(94,234,212,.7);}
.nav-cta{flex:0 0 auto;margin-left:8px;}
.nav-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-title);border-radius:2px;margin:3px auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;line-height:1;letter-spacing:.4px;
  padding:13px 22px;border-radius:var(--radius-pill);
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:var(--tone-accent);color:#20130C;
  box-shadow:0 10px 26px -12px rgba(255,122,69,.85);
}
.btn-primary:hover{background:#FF9163;color:#20130C;transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(255,122,69,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(255,122,69,.9);}
.btn-ghost{
  background:var(--glass);color:var(--tone-glow);
  border-color:rgba(14,165,160,.55);
}
.btn-ghost:hover{color:#CFFFF7;border-color:var(--tone-glow);box-shadow:inset 0 0 22px rgba(94,234,212,.18);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 16px;font-size:13px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,46,56,.55),rgba(4,22,28,0));
}
.crumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;margin:0;padding:16px 0;
  font-size:13px;color:var(--text-weak);
}
.crumb-list li{display:inline-flex;align-items:center;gap:8px;}
.crumb-list li + li::before{content:"/";color:rgba(255,255,255,.22);}
.crumb-list a{color:var(--text-sub);}
.crumb-list a:hover{color:var(--tone-glow);}
.crumb-list .is-current{color:var(--tone-glow);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article hero ---------- */
.article-hero{padding:56px 0 0;}
.article-hero .pill{
  display:inline-flex;align-items:center;
  padding:6px 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.06em;color:var(--tone-glow);
  background:var(--glass);border:1px solid rgba(94,234,212,.28);
}
.article-hero h1{
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.2;
  margin:18px 0 18px;
  max-width:900px;
  letter-spacing:.3px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--text-weak);
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24);}
.cover-frame{
  margin:32px 0 0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:linear-gradient(140deg,rgba(10,46,56,.9),rgba(4,22,28,.9));
}
.cover-frame img{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:0;transition:transform 400ms cubic-bezier(.2,.7,.3,1);}
.cover-frame:hover img{transform:scale(1.02);}
.cover-frame figcaption{font-size:12px;color:var(--text-weak);padding:10px 16px;border-top:1px solid var(--line);}

/* ---------- article body ---------- */
.article-shell{padding:56px 0 24px;}
.article-body{
  width:100%;max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--text-body);
  overflow-wrap:break-word;
}
.article-body h2{
  font-size:26px;line-height:1.35;margin:44px 0 16px;
  padding-left:14px;border-left:3px solid var(--tone-primary);
}
.article-body h3{font-size:20px;line-height:1.45;margin:32px 0 12px;color:#DCEEEF;}
.article-body h4{font-size:17px;margin:24px 0 10px;color:#CFE6E8;}
.article-body p{margin:0 0 18px;}
.article-body a{color:var(--tone-glow);border-bottom:1px solid rgba(94,234,212,.4);}
.article-body a:hover{border-bottom-color:var(--tone-glow);}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 20px;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--tone-primary);}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;
  background:var(--glass);border-left:3px solid var(--tone-glow);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:#CFE9EA;font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:22px 0;border-radius:var(--radius-img);border:1px solid var(--line);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--text-weak);margin-top:8px;text-align:center;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{
  padding:11px 14px;border:1px solid var(--line);text-align:left;
}
.article-body th{background:rgba(14,165,160,.16);color:var(--text-title);font-weight:600;white-space:nowrap;}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.03);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-size:14px;}
.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  padding:64px 28px;border-radius:var(--radius-card);
  background:var(--glass);border:1px dashed rgba(94,234,212,.32);
}
.empty-state svg{width:54px;height:54px;margin:0 auto 18px;opacity:.8;}
.empty-state h2{font-size:22px;margin-bottom:10px;border:0;padding:0;}
.empty-state p{color:var(--text-sub);margin-bottom:22px;}

/* ---------- tags & share ---------- */
.article-foot-bar{
  max-width:760px;margin:16px auto 0;padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px;
  justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag-row .tag-label{font-size:13px;color:var(--text-weak);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--text-sub);
  background:var(--glass);border:1px solid var(--line);
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.tag:hover{color:var(--tone-glow);border-color:rgba(94,234,212,.45);background:rgba(94,234,212,.08);}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row .share-label{font-size:13px;color:var(--text-weak);}
.share-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-sub);cursor:pointer;font-size:13px;
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.share-btn:hover{color:var(--tone-glow);border-color:rgba(94,234,212,.5);transform:translateY(-2px);}
.share-btn svg{width:16px;height:16px;}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:0;overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);box-shadow:var(--shadow-card);background:rgba(255,255,255,.08);}
.rel-card .rel-thumb{aspect-ratio:16/9;overflow:hidden;}
.rel-card .rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 400ms cubic-bezier(.2,.7,.3,1);}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-card .rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card .rel-cat{font-size:12px;color:var(--tone-glow);letter-spacing:.06em;}
.rel-card h3{font-size:17px;line-height:1.5;}
.rel-card p{font-size:14px;color:var(--text-sub);line-height:1.75;margin:0;flex:1;}
.rel-card .rel-more{font-size:13px;color:var(--tone-glow);display:inline-flex;gap:6px;align-items:center;}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:40px;
  padding:44px;
  border-radius:22px;
  background:linear-gradient(140deg,rgba(10,46,56,.92),rgba(4,22,28,.96));
  border:1px solid rgba(94,234,212,.24);
  box-shadow:var(--shadow-card);
}
.cta-left h2{font-size:30px;line-height:1.3;margin:12px 0 14px;}
.cta-left p{color:var(--text-sub);font-size:15px;line-height:1.8;}
.cta-points{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px;}
.cta-points li{position:relative;padding-left:22px;font-size:14px;color:var(--text-sub);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--tone-glow);box-shadow:0 0 10px rgba(94,234,212,.7);
}
.form-grid{display:grid;gap:16px;}
.field label{display:block;font-size:13px;color:var(--text-sub);margin-bottom:7px;letter-spacing:.04em;}
.field input,.field textarea{
  width:100%;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text-title);
  font-size:14px;
  padding:12px 14px;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(166,191,195,.55);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--tone-glow);
  box-shadow:0 0 0 3px rgba(94,234,212,.16);
  background:rgba(255,255,255,.08);
}
.field.is-error input,.field.is-error textarea{border-color:var(--tone-accent);}
.field .err-msg{display:none;font-size:12px;color:var(--tone-accent);margin-top:6px;}
.field.is-error .err-msg{display:block;}
.form-note{font-size:12px;color:var(--text-weak);margin:2px 0 0;}
.form-ok{
  display:none;font-size:13px;color:var(--tone-glow);
  background:rgba(94,234,212,.10);border:1px solid rgba(94,234,212,.35);
  border-radius:12px;padding:10px 14px;
}
.form-ok.is-visible{display:block;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:20px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,46,56,.42),rgba(4,22,28,.98));
  padding-top:60px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-sub);line-height:1.8;margin:0 0 10px;max-width:320px;}
.footer-col h3{
  font-size:14px;color:var(--tone-glow);font-weight:600;
  letter-spacing:.08em;margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-sub);}
.footer-col a:hover{color:var(--text-title);}
.footer-col .contact-line{font-size:14px;color:var(--text-sub);margin-bottom:8px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-weak);
}
.footer-bottom a{color:var(--text-sub);}
.footer-bottom a:hover{color:var(--tone-glow);}
.to-top{display:inline-flex;align-items:center;gap:6px;}

/* ---------- off canvas ---------- */
.oc-overlay{
  position:fixed;inset:0;background:rgba(2,10,13,.72);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  z-index:80;
}
.oc-overlay.is-open{opacity:1;visibility:visible;}
.off-canvas-panel{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;
  background:var(--ink-800);
  border-left:1px solid rgba(94,234,212,.22);
  transform:translateX(102%);
  transition:transform 240ms cubic-bezier(.2,.7,.3,1);
  z-index:90;
  padding:22px;
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.off-canvas-panel.is-open{transform:translateX(0);}
.oc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.oc-title{font-size:14px;color:var(--text-sub);letter-spacing:.1em;}
.oc-close{
  width:38px;height:38px;border-radius:10px;background:var(--glass);
  border:1px solid var(--line);color:var(--text-title);font-size:18px;cursor:pointer;line-height:1;
}
.oc-nav{display:grid;gap:6px;}
.oc-nav a{
  display:flex;align-items:center;min-height:44px;padding:10px 14px;
  border-radius:12px;font-size:15px;color:var(--text-body);
  border:1px solid transparent;
}
.oc-nav a:hover,.oc-nav a.is-active{background:var(--glass);border-color:rgba(94,234,212,.28);color:var(--text-title);}
.oc-cta{margin-top:20px;display:grid;gap:10px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .wrap{padding:0 32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:1023px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:grid;}
  .header-inner{height:66px;}
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  body::before{height:420px;}
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .article-hero{padding:36px 0 0;}
  .article-hero h1{font-size:26px;}
  .article-meta{gap:8px 14px;padding-bottom:20px;}
  .cover-frame img{aspect-ratio:16/10;}
  .article-shell{padding:36px 0 12px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:34px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-panel{padding:26px;border-radius:18px;}
  .cta-left h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-foot-bar{flex-direction:column;align-items:flex-start;}
  .rel-card:hover{transform:none;}
}
@media (max-width:519px){
  .brand-text{font-size:15px;}
  .brand-text .brand-sub{margin-left:3px;}
  .article-hero h1{font-size:23px;}
  .crumb-list .is-current{max-width:210px;}
  .btn{padding:12px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category1 */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-sub:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.06);
  --paper:#F2F7F7;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-soft:0 10px 30px -18px rgba(0,0,0,.6);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",sans-serif;
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --header-h:72px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-body);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-cn);
  color:var(--text-title);
  margin:0 0 12px;
  font-weight:700;
  letter-spacing:.2px;
}
h1{ font-size:clamp(30px,4vw,52px); line-height:1.15; }
h2{ font-size:32px; line-height:1.3; }
h3{ font-size:20px; line-height:1.4; }
p{ margin:0 0 14px; }
ul,ol{ margin:0 0 16px; padding-left:20px; }
li{ margin-bottom:6px; }

a{
  color:var(--tone-glow);
  text-decoration:none;
  transition:color var(--ease), opacity var(--ease);
}
a:hover,a:focus{ color:var(--text-title); }

img{ display:block; max-width:100%; height:auto; border:0; }
button{ font-family:inherit; }

:focus-visible{
  outline:2px solid var(--tone-glow);
  outline-offset:3px;
  border-radius:6px;
}

::selection{ background:rgba(14,165,160,.35); color:#fff; }

/* ============ 容器 ============ */
.grid-container{
  max-width:1200px;
  padding-left:40px;
  padding-right:40px;
  margin-left:auto;
  margin-right:auto;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--tone-accent);
  color:#260F06;
  box-shadow:0 10px 26px -12px rgba(255,122,69,.7);
}
.btn-primary:hover,
.btn-primary:focus{
  background:#FF8E60;
  color:#260F06;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,122,69,.45), 0 16px 34px -12px rgba(255,122,69,.75);
}
.btn-primary:active{ transform:translateY(0); box-shadow:0 6px 16px -10px rgba(255,122,69,.8); }
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(94,234,212,.45);
  color:var(--tone-glow);
}
.btn-ghost:hover,
.btn-ghost:focus{
  border-color:var(--tone-glow);
  color:#EAF6F6;
  transform:translateY(-2px);
  box-shadow:inset 0 0 18px rgba(94,234,212,.18), 0 0 0 1px rgba(94,234,212,.25);
}
.btn-ghost:active{ transform:translateY(0); box-shadow:inset 0 0 14px rgba(94,234,212,.2); }
.btn-sm{ padding:10px 20px; font-size:14px; }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(4,22,28,.55);
  border-bottom:1px solid transparent;
  transition:background var(--ease), border-color var(--ease), box-shadow var(--ease);
  backdrop-filter:blur(6px);
}
.site-header.is-scrolled{
  background:rgba(4,22,28,.82);
  border-bottom-color:var(--line);
  box-shadow:0 8px 30px -22px rgba(0,0,0,.9);
  backdrop-filter:blur(12px);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-title);
  flex:0 0 auto;
}
.brand:hover{ color:var(--text-title); }
.brand-mark{
  width:36px;
  height:36px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(150deg,rgba(14,165,160,.32),rgba(94,234,212,.10));
  border:1px solid rgba(94,234,212,.35);
  color:var(--tone-glow);
  font-size:16px;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.3px;
  color:var(--text-title);
  display:inline-flex;
  align-items:baseline;
  gap:6px;
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--tone-glow);
  letter-spacing:.5px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-sub);
  border-radius:8px;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--tone-glow);
  opacity:0;
  box-shadow:0 0 10px rgba(94,234,212,.8);
  transition:opacity var(--ease);
}
.nav-link:hover{ color:var(--text-title); }
.nav-link:hover::after{ opacity:.45; }
.nav-link.is-active{ color:var(--text-title); font-weight:600; }
.nav-link.is-active::after{ opacity:1; }
.header-actions{ display:flex; align-items:center; gap:12px; flex:0 0 auto; }
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text-title);
  font-size:17px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:border-color var(--ease), background var(--ease);
}
.nav-toggle:hover{ border-color:rgba(94,234,212,.5); background:rgba(94,234,212,.10); }

/* ============ 移动抽屉 ============ */
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(2,10,13,.72);
  backdrop-filter:blur(3px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease), visibility var(--ease);
  z-index:70;
}
.drawer-overlay.is-open{ opacity:1; visibility:visible; }
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(320px,86vw);
  height:100%;
  background:var(--ink-800);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform 240ms cubic-bezier(.2,.7,.3,1);
  z-index:80;
  padding:22px 20px 32px;
  overflow-y:auto;
}
.mobile-drawer.is-open{ transform:translateX(0); }
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.drawer-title{ font-size:15px; font-weight:700; color:var(--text-title); }
.drawer-close{
  width:36px;height:36px;border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text-title);cursor:pointer;font-size:15px;
}
.drawer-nav{ display:flex; flex-direction:column; gap:4px; }
.drawer-link{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-sub);
  font-size:15px;
  border:1px solid transparent;
  transition:background var(--ease), color var(--ease), border-color var(--ease);
}
.drawer-link:hover,.drawer-link:focus{ background:rgba(255,255,255,.06); color:var(--text-title); }
.drawer-link.is-active{
  color:var(--text-title);
  border-color:rgba(94,234,212,.35);
  background:rgba(94,234,212,.08);
  font-weight:600;
}
.drawer-cta{ margin-top:18px; }

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  overflow:hidden;
  background:
    radial-gradient(620px 320px at 88% 12%, rgba(14,165,160,.16), transparent 72%),
    radial-gradient(520px 320px at 6% 90%, rgba(94,234,212,.10), transparent 70%),
    var(--ink-900);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 50% 40%, #000 20%, transparent 78%);
  opacity:.5;
  pointer-events:none;
}
.hero-grid{ position:relative; z-index:1; row-gap:36px; }
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:18px;
}
.crumb a{ color:var(--text-weak); }
.crumb a:hover{ color:var(--tone-glow); }
.crumb .sep{ color:rgba(255,255,255,.22); }
.crumb .current{ color:var(--tone-primary); font-weight:600; }
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid rgba(94,234,212,.28);
  color:var(--tone-glow);
  font-size:12px;
  letter-spacing:.6px;
  margin-bottom:18px;
}
.hero-title{ margin-bottom:16px; }
.hero-title .accent{ color:var(--tone-glow); }
.hero-sub{
  font-size:17px;
  line-height:1.8;
  color:var(--text-sub);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom:20px; }
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-size:13px;
  color:var(--text-sub);
}
.hero-points span{ display:inline-flex; align-items:center; gap:7px; }
.hero-points span::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--tone-glow);
  box-shadow:0 0 8px rgba(94,234,212,.9);
}
.hero-visual{ position:relative; }
.hero-img-wrap{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.hero-img-wrap img{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.9) brightness(.82);
}
.hero-img-wrap::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(155deg, rgba(4,22,28,.18) 0%, rgba(4,22,28,.72) 100%);
  pointer-events:none;
}
.hero-stats{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  z-index:2;
}
.stat-chip{
  background:rgba(6,33,41,.72);
  border:1px solid rgba(94,234,212,.24);
  border-radius:12px;
  padding:10px 10px;
  text-align:center;
  backdrop-filter:blur(8px);
}
.stat-chip b{
  display:block;
  font-family:var(--font-num);
  font-size:19px;
  font-weight:700;
  letter-spacing:-.4px;
  color:var(--tone-glow);
  line-height:1.2;
}
.stat-chip span{ font-size:11px; color:var(--text-sub); line-height:1.4; }

/* ============ 通用板块 ============ */
.section{ padding:88px 0; }
.section--tight{ padding:72px 0; }
.section-head{ max-width:720px; margin-bottom:44px; }
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  letter-spacing:1.4px;
  color:var(--tone-primary);
  font-weight:600;
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-kicker::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--tone-primary),transparent);
}
.section-title{ font-size:32px; line-height:1.3; margin-bottom:14px; }
.section-desc{ font-size:16px; color:var(--text-sub); line-height:1.8; margin:0; max-width:660px; }
.section--paper{ background:var(--paper); }
.section--paper .section-title,
.section--paper h2,
.section--paper h3{ color:#0A2E38; }
.section--paper .section-desc{ color:#4B686E; }
.section--paper .section-kicker{ color:var(--tone-primary-deep); }

/* ============ 能力卡 ============ */
.value-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.value-card{
  position:relative;
  padding:28px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18), var(--shadow-soft);
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.value-card:hover{
  transform:translateY(-4px);
  border-color:rgba(94,234,212,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), 0 26px 48px -28px rgba(0,0,0,.85);
}
.value-top{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.value-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  border:1px solid rgba(94,234,212,.3);
  background:rgba(14,165,160,.12);
  color:var(--tone-glow);
  font-size:17px;
}
.value-num{
  margin-left:auto;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:rgba(255,255,255,.22);
  letter-spacing:1px;
}
.value-card h3{ margin-bottom:8px; }
.value-card p{ margin:0; font-size:15px; color:var(--text-sub); line-height:1.8; }
.value-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  font-size:12px;
  border-radius:var(--radius-pill);
  background:rgba(94,234,212,.10);
  border:1px solid rgba(94,234,212,.24);
  color:var(--tone-glow);
}

/* ============ 组合方案 图文分栏 ============ */
.solution-list{ display:flex; flex-direction:column; gap:32px; }
.solution-block{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:center;
  padding:24px;
  border-radius:var(--radius-card);
  background:var(--ink-800);
  border:1px solid var(--line);
  transition:border-color var(--ease), transform var(--ease);
}
.solution-block:hover{ border-color:rgba(94,234,212,.3); transform:translateY(-3px); }
.solution-block.is-reverse .sol-media{ order:2; }
.sol-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,var(--ink-700),var(--ink-900));
}
.sol-media img{ width:100%; height:100%; object-fit:cover; transition:transform 320ms cubic-bezier(.2,.7,.3,1); }
.solution-block:hover .sol-media img{ transform:scale(1.03); }
.sol-body h3{ margin-bottom:10px; }
.sol-body p{ font-size:15px; color:var(--text-sub); margin-bottom:12px; }
.sol-list{ list-style:none; padding:0; margin:0; display:grid; gap:8px; }
.sol-list li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--text-body);
  margin:0;
}
.sol-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:3px;
  border:1.5px solid var(--tone-glow);
  transform:rotate(45deg);
}

/* ============ 场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.scene-item{
  display:flex;
  gap:16px;
  padding:24px;
  border-radius:var(--radius-card);
  background:var(--ink-800);
  border:1px solid var(--line);
  transition:border-color var(--ease), background var(--ease), transform var(--ease);
}
.scene-item:hover{ border-color:rgba(94,234,212,.32); background:var(--ink-700); transform:translateY(-3px); }
.scene-num{
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--tone-accent);
  line-height:1;
  letter-spacing:-.5px;
  padding-top:4px;
  min-width:44px;
}
.scene-item h3{ font-size:17px; margin-bottom:6px; }
.scene-item p{ margin:0; font-size:14px; color:var(--text-sub); line-height:1.75; }

/* ============ 流程 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  counter-reset:flow;
}
.flow-step{
  position:relative;
  padding:26px 22px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16);
  transition:transform var(--ease), border-color var(--ease);
}
.flow-step:hover{ transform:translateY(-4px); border-color:rgba(94,234,212,.35); }
.flow-step::after{
  content:"";
  position:absolute;
  top:38px;
  right:-12px;
  width:12px;
  height:1px;
  background:linear-gradient(90deg,rgba(94,234,212,.7),transparent);
}
.flow-step:last-child::after{ display:none; }
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:10px;
  background:rgba(14,165,160,.16);
  border:1px solid rgba(94,234,212,.32);
  color:var(--tone-glow);
  font-family:var(--font-num);
  font-weight:700;
  font-size:14px;
  margin-bottom:14px;
}
.flow-step h3{ font-size:17px; margin-bottom:8px; }
.flow-step p{ margin:0 0 10px; font-size:14px; color:var(--text-sub); line-height:1.75; }
.flow-time{ font-size:12px; color:var(--text-weak); letter-spacing:.4px; }

/* ============ FAQ ============ */
.faq-wrap{ display:grid; grid-template-columns:4fr 8fr; gap:40px; align-items:start; }
.faq-aside h2{ color:#0A2E38; }
.faq-aside p{ color:#4B686E; font-size:15px; line-height:1.8; }
.faq-aside .btn-ghost{ border-color:rgba(11,124,121,.45); color:var(--tone-primary-deep); }
.faq-aside .btn-ghost:hover{ color:#0A2E38; border-color:var(--tone-primary-deep); box-shadow:none; }
.faq-list{ display:flex; flex-direction:column; gap:12px; }
.faq-item{
  background:#FFFFFF;
  border:1px solid rgba(10,46,56,.10);
  border-radius:14px;
  padding:4px 20px;
  transition:box-shadow var(--ease), border-color var(--ease);
  position:relative;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--tone-primary);
  opacity:0;
  transition:opacity var(--ease);
}
.faq-item.is-open{ box-shadow:0 16px 34px -26px rgba(10,46,56,.6); border-color:rgba(14,165,160,.35); }
.faq-item.is-open::before{ opacity:1; }
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 0;
  background:none;
  border:0;
  text-align:left;
  cursor:pointer;
  color:#0A2E38;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{ color:var(--tone-primary-deep); }
.faq-item.is-open .faq-q{ color:var(--tone-primary-deep); }
.faq-num{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:rgba(10,46,56,.35);
  letter-spacing:.5px;
  min-width:22px;
}
.faq-item.is-open .faq-num{ color:var(--tone-accent); }
.faq-icon{
  margin-left:auto;
  width:22px;height:22px;
  flex:0 0 auto;
  border-radius:50%;
  border:1px solid rgba(10,46,56,.18);
  display:grid;place-items:center;
  font-size:11px;
  color:#0A2E38;
  transition:transform var(--ease), background var(--ease), color var(--ease);
}
.faq-item.is-open .faq-icon{ background:var(--tone-primary); color:#fff; border-color:var(--tone-primary); transform:rotate(180deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 300ms cubic-bezier(.2,.7,.3,1);
}
.faq-a p{
  margin:0;
  padding:0 0 18px 36px;
  font-size:15px;
  line-height:1.85;
  color:#41595F;
}

/* ============ 相关入口 ============ */
.related-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.related-card{
  display:block;
  padding:24px 22px;
  border-radius:var(--radius-card);
  background:var(--ink-800);
  border:1px solid var(--line);
  color:var(--text-body);
  transition:transform var(--ease), border-color var(--ease), background var(--ease);
}
.related-card:hover{
  transform:translateY(-4px);
  border-color:rgba(94,234,212,.35);
  background:var(--ink-700);
  color:var(--text-title);
}
.related-card i{ color:var(--tone-glow); font-size:18px; margin-bottom:14px; display:block; }
.related-card h3{ font-size:17px; margin-bottom:8px; }
.related-card p{ margin:0 0 14px; font-size:14px; color:var(--text-sub); line-height:1.7; }
.related-more{ font-size:13px; color:var(--tone-glow); display:inline-flex; align-items:center; gap:6px; }
.related-card:hover .related-more{ color:#EAF6F6; }

/* ============ CTA 表单 ============ */
.cta-section{
  padding:88px 0;
  background:
    radial-gradient(560px 300px at 82% 20%, rgba(255,122,69,.12), transparent 70%),
    radial-gradient(520px 320px at 10% 80%, rgba(14,165,160,.14), transparent 72%),
    var(--ink-900);
  border-top:1px solid var(--line);
}
.cta-panel{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  padding:40px;
  border-radius:22px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18), var(--shadow-card);
  backdrop-filter:blur(14px) saturate(120%);
}
.cta-copy h2{ font-size:28px; line-height:1.35; margin-bottom:14px; }
.cta-copy p{ color:var(--text-sub); font-size:15px; line-height:1.8; }
.cta-points{ list-style:none; padding:0; margin:20px 0 0; display:grid; gap:10px; }
.cta-points li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  color:var(--text-body);
  margin:0;
}
.cta-points li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;top:1px;
  font-size:11px;
  color:var(--tone-glow);
}
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ display:flex; flex-direction:column; gap:7px; }
.field.full{ grid-column:1 / -1; }
.field label{ font-size:13px; color:var(--text-sub); letter-spacing:.3px; }
.field input,
.field textarea{
  width:100%;
  padding:12px 15px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  color:var(--text-title);
  font-size:15px;
  font-family:inherit;
  line-height:1.6;
  transition:border-color var(--ease), box-shadow var(--ease), background var(--ease);
}
.field input::placeholder,
.field textarea::placeholder{ color:rgba(166,191,195,.6); }
.field input:hover,
.field textarea:hover{ border-color:rgba(255,255,255,.24); }
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--tone-glow);
  background:rgba(94,234,212,.06);
  box-shadow:0 0 0 3px rgba(94,234,212,.16);
}
.field textarea{ min-height:104px; resize:vertical; }
.form-note{ grid-column:1 / -1; font-size:12px; color:var(--text-weak); margin:0; }
.form-note a{ color:var(--tone-glow); }
.form-actions{ grid-column:1 / -1; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.form-actions .btn-primary{ min-width:170px; }

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:56px 0 24px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.55),transparent);
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
}
.footer-brand .brand{ margin-bottom:14px; }
.footer-intro{ font-size:14px; color:var(--text-sub); line-height:1.85; max-width:320px; margin:0; }
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--tone-primary);
  letter-spacing:.8px;
  margin-bottom:16px;
}
.footer-list{ list-style:none; padding:0; margin:0; display:grid; gap:10px; }
.footer-list li{ margin:0; }
.footer-list a{ font-size:14px; color:var(--text-sub); }
.footer-list a:hover{ color:var(--text-title); }
.footer-list span{ font-size:14px; color:var(--text-sub); line-height:1.7; display:block; }
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-weak);
}
.footer-bottom .copy{ margin:0; }
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-sub);
  padding:8px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  transition:color var(--ease), border-color var(--ease), background var(--ease);
}
.to-top:hover{ color:var(--tone-glow); border-color:rgba(94,234,212,.45); background:rgba(94,234,212,.08); }

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .grid-container{ padding-left:32px; padding-right:32px; }
  .main-nav{ gap:0; }
  .nav-link{ padding:10px 10px; font-size:14px; }
  .section{ padding:72px 0; }
  .cta-panel{ padding:32px; gap:28px; }
}

@media screen and (max-width:1023px){
  .main-nav{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .header-actions .btn-primary{ display:none; }
  .hero-grid{ row-gap:32px; }
  .hero-visual{ width:100%; }
  .value-grid{ grid-template-columns:1fr; }
  .solution-block{ grid-template-columns:1fr; gap:20px; }
  .solution-block.is-reverse .sol-media{ order:0; }
  .scene-grid{ grid-template-columns:1fr; }
  .flow{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .flow-step:nth-child(2)::after{ display:none; }
  .faq-wrap{ grid-template-columns:1fr; gap:24px; }
  .related-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .cta-panel{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
}

@media screen and (max-width:767px){
  .grid-container{ padding-left:20px; padding-right:20px; }
  .page-hero{ padding:36px 0 48px; }
  .hero-img-wrap{ aspect-ratio:16/10; }
  .hero-stats{ position:static; margin-top:14px; left:auto; right:auto; bottom:auto; }
  .hero-sub{ font-size:16px; }
  h2,.section-title{ font-size:24px; }
  .section{ padding:48px 0; }
  .section--tight{ padding:44px 0; }
  .section-head{ margin-bottom:28px; }
  .value-card{ padding:20px; backdrop-filter:none; background:rgba(255,255,255,.07); }
  .solution-block{ padding:16px; }
  .scene-item{ padding:18px; }
  .flow{ grid-template-columns:1fr; }
  .flow-step::after{ display:none; }
  .related-grid{ grid-template-columns:1fr; }
  .cta-section{ padding:48px 0; }
  .cta-panel{ padding:22px; backdrop-filter:none; background:rgba(255,255,255,.07); }
  .form-grid{ grid-template-columns:1fr; }
  .faq-q{ font-size:15px; gap:10px; }
  .faq-a p{ padding-left:0; }
  .footer-grid{ grid-template-columns:1fr; gap:24px; padding-bottom:26px; }
  .footer-intro{ max-width:none; }
  .footer-bottom{ justify-content:flex-start; }
}

@media screen and (max-width:520px){
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .hero-actions .btn{ width:100%; }
  .hero-stats{ grid-template-columns:repeat(3,1fr); gap:8px; }
  .stat-chip b{ font-size:16px; }
  .stat-chip span{ font-size:10px; }
  .brand-text{ font-size:15px; }
  .brand-sub{ font-size:11px; }
  .form-actions .btn-primary{ width:100%; }
}

/* roulang page: category2 */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-muted:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.06);
  --glass-solid:rgba(255,255,255,.07);
  --paper:#F2F7F7;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(94,234,212,.45),0 10px 30px -8px rgba(14,165,160,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--tone-glow);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:#FFFFFF;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;color:var(--text-title);font-weight:700;letter-spacing:.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 2px var(--ink-900),0 0 0 4px var(--tone-glow);border-radius:8px;}
.grid-container{max-width:var(--container);margin-left:auto;margin-right:auto;padding-left:40px;padding-right:40px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:32px;line-height:1.3;margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--text-muted);line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;text-transform:uppercase;
  color:var(--tone-glow);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--tone-glow);display:inline-block;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--tone-accent);color:#20120B;box-shadow:0 12px 26px -14px rgba(255,122,69,.85);}
.btn-primary:hover{background:#FF9163;color:#20120B;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,69,.5),0 18px 34px -14px rgba(255,122,69,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,122,69,.45),0 8px 18px -12px rgba(255,122,69,.7);}
.btn-ghost{background:var(--glass);color:var(--tone-glow);border-color:rgba(94,234,212,.45);}
.btn-ghost:hover{color:#FFFFFF;border-color:var(--tone-glow);transform:translateY(-2px);box-shadow:inset 0 0 22px -8px rgba(94,234,212,.65),0 0 0 1px rgba(94,234,212,.32);}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 0 16px -8px rgba(94,234,212,.5);}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--tone-glow);}
.link-more:hover{color:#FFFFFF;gap:10px;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(4,22,28,.72);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,22,28,.94);
  border-bottom-color:var(--line);
  box-shadow:0 18px 34px -28px #000;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-title);font-weight:700;font-size:19px;letter-spacing:.3px;}
.brand:hover{color:var(--text-title);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(14,165,160,.35),rgba(94,234,212,.10));
  border:1px solid rgba(94,234,212,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
}
.brand-mark svg{width:20px;height:20px;}
.brand-sep{color:var(--text-weak);font-weight:400;margin:0 2px;}
.brand-sub{color:var(--tone-glow);}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{position:relative;display:inline-flex;align-items:center;color:var(--text-muted);font-size:15px;padding:6px 0;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;
  background:var(--tone-glow);opacity:0;transition:opacity .18s var(--ease);
}
.nav-link:hover{color:var(--text-title);}
.nav-link:hover::after{opacity:.42;}
.nav-link.is-active{color:var(--text-title);font-weight:600;}
.nav-link.is-active::after{opacity:1;box-shadow:0 0 12px rgba(94,234,212,.75);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--text-title);align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(94,234,212,.45);background:rgba(94,234,212,.08);}
.nav-toggle svg{width:20px;height:20px;}

/* ============ MOBILE DRAWER ============ */
.off-canvas-wrapper{overflow:visible;}
.off-canvas-content{overflow:visible;}
.off-canvas.position-right{
  position:fixed;top:0;right:0;bottom:auto;
  height:100%;width:min(340px,86vw);
  background:var(--ink-800);
  border-left:1px solid var(--line-strong);
  transform:translateX(105%);
  transition:transform .28s var(--ease);
  z-index:1200;
  padding:0;overflow-y:auto;display:block;
  box-shadow:-24px 0 60px -30px #000;
}
.off-canvas.position-right.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-head .brand{font-size:16px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text-title);cursor:pointer;
  display:grid;place-items:center;font-size:18px;line-height:1;
}
.drawer-close:hover{border-color:rgba(94,234,212,.45);}
.drawer-nav{padding:12px 10px 24px;}
.drawer-nav .nav-link{
  display:flex;align-items:center;min-height:44px;padding:0 16px;
  border-radius:10px;font-size:16px;color:var(--text-body);
}
.drawer-nav .nav-link::after{display:none;}
.drawer-nav .nav-link:hover{background:rgba(255,255,255,.05);color:var(--text-title);}
.drawer-nav .nav-link.is-active{background:rgba(94,234,212,.10);color:var(--tone-glow);font-weight:600;}
.drawer-foot{padding:16px 20px 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-weak);line-height:1.9;}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(2,10,13,.68);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:1100;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}

/* ============ HERO ============ */
.page-hero{position:relative;padding:76px 0 88px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(14,165,160,.20) 0%,rgba(14,165,160,0) 68%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  pointer-events:none;
}
.hero-row{position:relative;z-index:2;row-gap:36px;}
.hero-copy h1{
  font-size:clamp(30px,4vw,52px);line-height:1.15;font-weight:700;
  margin-bottom:20px;letter-spacing:.5px;
}
.hero-copy h1 .hl{color:var(--tone-glow);}
.hero-lead{font-size:18px;line-height:1.75;color:var(--text-body);margin-bottom:14px;max-width:560px;}
.hero-desc{font-size:15px;line-height:1.85;color:var(--text-muted);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--text-muted);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--tone-primary);display:inline-block;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  background:linear-gradient(160deg,var(--ink-700),var(--ink-800));
}
.hero-figure img{width:100%;height:100%;aspect-ratio:4/3.4;object-fit:cover;opacity:.92;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,22,28,.06) 0%,rgba(4,22,28,.55) 62%,rgba(4,22,28,.88) 100%);
  pointer-events:none;
}
.hero-figure-caption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  background:rgba(6,33,41,.66);border:1px solid rgba(94,234,212,.22);
  border-radius:14px;padding:14px 16px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.hero-figure-caption strong{display:block;color:var(--text-title);font-size:14px;margin-bottom:4px;}
.hero-figure-caption span{display:block;font-size:12px;color:var(--text-muted);line-height:1.7;}
.hero-chips{
  position:absolute;left:20px;top:20px;z-index:2;display:flex;flex-direction:column;gap:10px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(6,33,41,.78);border:1px solid rgba(94,234,212,.28);
  font-size:13px;color:var(--text-title);font-weight:600;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.chip b{color:var(--tone-accent);font-size:15px;font-weight:700;letter-spacing:-.4px;}
.chip small{color:var(--text-muted);font-weight:400;font-size:12px;}

/* ============ TRUST STRIP ============ */
.trust-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);padding:22px 0;}
.trust-inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.trust-label{font-size:13px;color:var(--text-weak);letter-spacing:1px;white-space:nowrap;margin-right:8px;}
.trust-badges{display:flex;gap:12px;flex-wrap:wrap;overflow-x:auto;padding-bottom:2px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--glass);font-size:13px;color:var(--text-muted);white-space:nowrap;
}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--tone-primary);display:inline-block;}

/* ============ SCENE CARDS ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);box-shadow:var(--shadow-card);}
.scene-card.is-glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-color:rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
}
.scene-card h3{font-size:20px;line-height:1.4;}
.scene-card p{font-size:15px;line-height:1.8;color:var(--text-muted);}
.icon-line{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(94,234,212,.42);color:var(--tone-glow);
  background:rgba(94,234,212,.06);
}
.icon-line svg{width:22px;height:22px;}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.tag{
  display:inline-block;padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:12px;color:var(--text-muted);letter-spacing:.2px;
}
.scene-card .link-more{margin-top:auto;padding-top:8px;}

/* ============ STEPS ============ */
.steps-wrap{position:relative;}
.steps-line{position:absolute;left:0;right:0;top:26px;height:1px;background:linear-gradient(90deg,rgba(94,234,212,.45),rgba(94,234,212,.06));}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step{padding-top:0;}
.step-num{
  display:inline-flex;align-items:baseline;gap:4px;
  font-size:34px;font-weight:700;letter-spacing:-1.2px;color:rgba(94,234,212,.38);
  margin-bottom:16px;position:relative;z-index:2;
  background:var(--ink-900);padding-right:12px;
}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{font-size:14px;line-height:1.8;color:var(--text-muted);}
.step-meta{margin-top:12px;font-size:12px;color:var(--tone-glow);letter-spacing:.6px;}

/* ============ TABLE ============ */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--ink-800);}
table.fit-table{width:100%;min-width:820px;border-collapse:collapse;font-size:15px;}
table.fit-table th{
  background:rgba(255,255,255,.045);color:var(--text-title);font-weight:600;
  text-align:left;padding:16px 22px;font-size:14px;letter-spacing:.4px;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
table.fit-table td{padding:16px 22px;border-top:1px solid var(--line);color:var(--text-body);line-height:1.7;}
table.fit-table tbody tr:first-child td{border-top:none;}
table.fit-table tbody tr:hover td{background:rgba(94,234,212,.045);}
table.fit-table td:first-child{color:var(--text-title);font-weight:600;}
.table-note{margin-top:14px;font-size:13px;color:var(--text-weak);}

/* ============ VOICE ============ */
.voice-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.voice-main{
  background:linear-gradient(150deg,var(--ink-700),var(--ink-800));
  border:1px solid var(--line-strong);border-radius:22px;padding:40px;
  box-shadow:var(--shadow-card);
}
.voice-main blockquote{
  margin:0 0 22px;font-size:21px;line-height:1.65;color:var(--text-title);font-weight:600;
}
.voice-main blockquote::before{content:"“";display:block;font-size:44px;line-height:.6;color:var(--tone-primary);margin-bottom:14px;}
.voice-meta{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-muted);}
.voice-avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(94,234,212,.12);border:1px solid rgba(94,234,212,.35);
  color:var(--tone-glow);font-size:14px;font-weight:700;
}
.voice-side{display:grid;gap:16px;}
.voice-item{
  background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:22px;
  font-size:14px;line-height:1.8;color:var(--text-muted);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.voice-item:hover{border-color:rgba(94,234,212,.32);transform:translateY(-3px);}
.voice-item strong{display:block;color:var(--text-title);font-size:15px;margin-bottom:6px;font-weight:600;}
.voice-item span{display:block;margin-top:10px;font-size:12px;color:var(--text-weak);}

/* ============ FAQ ============ */
.faq-section{background:var(--paper);color:#20403F;padding:96px 0;}
.faq-section .eyebrow{color:var(--tone-primary-deep);}
.faq-section .eyebrow::before{background:var(--tone-primary-deep);}
.faq-section h2{color:#04161C;font-size:32px;line-height:1.3;margin-bottom:16px;}
.faq-section .section-head p{color:#3D565B;}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:96px;}
.faq-aside .faq-hint{
  margin-top:24px;padding:22px;background:#FFFFFF;border:1px solid rgba(4,22,28,.08);
  border-radius:16px;font-size:14px;line-height:1.8;color:#3D565B;
  box-shadow:0 18px 34px -30px rgba(4,22,28,.55);
}
.faq-aside .faq-hint strong{display:block;color:#04161C;margin-bottom:6px;}
.faq-aside .faq-hint a{color:var(--tone-primary-deep);font-weight:600;}
.faq-section .accordion{border:none;background:transparent;margin:0;}
.faq-section .accordion-item{
  border:1px solid rgba(4,22,28,.10);border-radius:14px;background:#FFFFFF;
  margin-bottom:14px;overflow:hidden;position:relative;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-section .accordion-item:hover{border-color:rgba(14,165,160,.32);}
.faq-section .accordion-item.is-active{
  border-color:rgba(14,165,160,.5);
  box-shadow:0 18px 36px -30px rgba(4,22,28,.7);
}
.faq-section .accordion-title{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:20px 60px 20px 24px;border:none;background:#FFFFFF;
  font-size:17px;font-weight:600;color:#04161C;line-height:1.5;
}
.faq-section .accordion-title:hover{background:#F7FBFB;color:#0B7C79;}
.faq-section .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;margin:0;border:none;background:none;
  font-size:22px;line-height:1;font-weight:400;color:#0B7C79;
}
.faq-section .accordion-item.is-active .accordion-title::before{content:"–";}
.faq-section .accordion-item.is-active .accordion-title{color:#0B7C79;}
.faq-section .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--tone-primary);
}
.faq-num{
  flex:0 0 auto;font-size:13px;font-weight:700;letter-spacing:1px;color:#0B7C79;
  background:rgba(14,165,160,.10);border-radius:var(--radius-pill);
  padding:3px 10px;line-height:1.6;
}
.faq-section .accordion-content{
  border:none;border-top:1px solid rgba(4,22,28,.08);
  padding:18px 24px 22px;background:#FFFFFF;
  font-size:15px;line-height:1.85;color:#3D565B;
}

/* ============ RELATED ============ */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  padding:26px 24px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--line);
  color:var(--text-body);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);box-shadow:var(--shadow-card);color:var(--text-body);}
.related-tag{
  display:inline-block;width:fit-content;padding:4px 10px;border-radius:var(--radius-pill);
  background:rgba(94,234,212,.10);border:1px solid rgba(94,234,212,.26);
  font-size:12px;color:var(--tone-glow);letter-spacing:.5px;
}
.related-card h3{font-size:18px;line-height:1.4;}
.related-card p{font-size:14px;line-height:1.75;color:var(--text-muted);}
.related-card .link-more{margin-top:auto;padding-top:6px;}

/* ============ CTA ============ */
.cta-section{padding:96px 0 104px;}
.cta-panel{
  display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;padding:46px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-140px;bottom:-180px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(14,165,160,.22),transparent 70%);
  pointer-events:none;
}
.cta-copy h2{font-size:30px;line-height:1.32;margin-bottom:16px;}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--text-muted);margin-bottom:22px;}
.cta-list{display:grid;gap:12px;}
.cta-list li{display:flex;gap:10px;font-size:14px;color:var(--text-body);line-height:1.7;}
.cta-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:4px;border-radius:50%;
  background:rgba(94,234,212,.14);border:1px solid rgba(94,234,212,.45);
}
.form-panel{position:relative;z-index:2;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:8px;letter-spacing:.3px;}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);border-radius:12px;
  padding:12px 14px;font-size:15px;color:var(--text-title);
  font-family:inherit;line-height:1.6;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#5F7C82;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--tone-glow);background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(94,234,212,.16);
}
.form-tip{
  display:none;margin-top:12px;font-size:13px;color:var(--tone-glow);
  padding:10px 14px;border-radius:10px;background:rgba(94,234,212,.10);
  border:1px solid rgba(94,234,212,.28);
}
.form-tip.is-show{display:block;}
.form-note{margin-top:12px;font-size:12px;color:var(--text-weak);line-height:1.7;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);position:relative;padding:64px 0 0;}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{font-size:17px;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-muted);max-width:320px;}
.footer-title{font-size:14px;color:var(--tone-primary);font-weight:600;margin-bottom:18px;letter-spacing:.6px;}
.footer-link{display:block;font-size:14px;color:var(--text-muted);margin-bottom:12px;line-height:1.6;}
.footer-link:hover{color:var(--text-title);}
.footer-info{font-size:14px;color:var(--text-muted);line-height:1.9;}
.footer-info span{display:block;}
.footer-info strong{color:var(--text-body);font-weight:600;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;font-size:13px;color:var(--text-weak);flex-wrap:wrap;
}
.footer-bottom a{color:var(--text-weak);}
.footer-bottom a:hover{color:var(--tone-glow);}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .grid-container{padding-left:32px;padding-right:32px;}
  .section,.faq-section,.cta-section{padding-top:80px;padding-bottom:80px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:100%;}
}
@media (max-width:1024px){
  .main-nav{gap:20px;}
  .nav-link{font-size:14px;}
  .hero-figure img{aspect-ratio:16/10;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:36px;}
  .steps-line{display:none;}
  .voice-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:66px;}
}
@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section,.faq-section,.cta-section{padding-top:48px;padding-bottom:48px;}
  .page-hero{padding:44px 0 52px;}
  .hero-copy h1{font-size:clamp(26px,7.4vw,36px);}
  .hero-lead{font-size:16px;}
  .hero-desc{font-size:14px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-figure img{aspect-ratio:auto;height:220px;}
  .hero-chips{position:static;flex-direction:row;flex-wrap:wrap;margin-top:14px;}
  .hero-figure-caption{position:static;margin-top:14px;left:auto;right:auto;bottom:auto;}
  .hero-figure::after{background:linear-gradient(180deg,rgba(4,22,28,.02) 0%,rgba(4,22,28,.35) 100%);}
  .section-head h2,.faq-section h2,.cta-copy h2{font-size:24px;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:28px;}
  .step-num{background:transparent;}
  .related-grid{grid-template-columns:1fr;}
  .voice-main{padding:28px;}
  .voice-main blockquote{font-size:18px;}
  .cta-panel{padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .scene-card{padding:22px;}
  .badge{font-size:12px;padding:7px 13px;}
}
@media (max-width:520px){
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;}
  .brand-mark svg{width:18px;height:18px;}
  .btn{height:44px;padding:0 20px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .trust-badges{flex-wrap:nowrap;}
  .faq-section .accordion-title{font-size:15px;padding:16px 52px 16px 18px;gap:10px;}
  .faq-section .accordion-content{padding:16px 18px 20px;font-size:14px;}
  table.fit-table th,table.fit-table td{padding:13px 16px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-muted:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --paper:#F2F7F7;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(94,234,212,.45), 0 10px 30px -8px rgba(14,165,160,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Inter",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 82% -10%, rgba(14,165,160,.20), transparent 62%),
    radial-gradient(760px 440px at -6% 14%, rgba(94,234,212,.10), transparent 64%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text-title);font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(30px,4vw,52px);line-height:1.15;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
a{color:var(--tone-glow);text-decoration:none;transition:color 180ms var(--ease);}
a:hover,a:focus{color:var(--text-title);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--tone-glow);outline-offset:3px;border-radius:6px;}

.grid-container{
  max-width:var(--container);
  padding-left:40px;
  padding-right:40px;
  margin-left:auto;
  margin-right:auto;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform 180ms var(--ease), background 180ms var(--ease), box-shadow 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--tone-accent);
  color:#20140E;
  box-shadow:0 12px 26px -14px rgba(255,122,69,.85);
}
.btn-primary:hover,.btn-primary:focus{
  background:#FF8F62;
  color:#20140E;
  transform:translateY(-2px);
  box-shadow:0 18px 34px -14px rgba(255,122,69,.9);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(255,122,69,.9);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(14,165,160,.6);
  color:var(--tone-glow);
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:var(--tone-glow);
  color:var(--text-title);
  background:rgba(94,234,212,.10);
  box-shadow:inset 0 0 0 1px rgba(94,234,212,.35), 0 0 22px -6px rgba(94,234,212,.5);
  transform:translateY(-2px);
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(4,22,28,.55);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease), border-color 240ms var(--ease), backdrop-filter 240ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,22,28,.86);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--text-title);
  letter-spacing:.3px;
}
.brand:hover{color:var(--text-title);}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--tone-primary),var(--tone-primary-deep));
  color:#03181C;
  font-size:15px;
  font-weight:800;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35), 0 8px 18px -12px rgba(14,165,160,.9);
}
.logo-hl{color:var(--tone-glow);}
.logo-dot{color:var(--text-weak);margin:0 2px;font-weight:400;}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 13px;
  font-size:15px;
  color:var(--text-muted);
  border-radius:9px;
  transition:color 180ms var(--ease), opacity 180ms var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--tone-glow);
  opacity:0;
  transform:scaleX(.4);
  transition:opacity 180ms var(--ease), transform 180ms var(--ease);
}
.nav-link:hover,.nav-link:focus{color:var(--text-title);}
.nav-link:hover::after{opacity:.55;transform:scaleX(1);}
.nav-link.is-active{color:var(--text-title);}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(94,234,212,.8);}

.header-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:11px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-title);
  font-size:16px;
  cursor:pointer;
  transition:background 180ms var(--ease), border-color 180ms var(--ease);
}
.nav-toggle:hover{border-color:rgba(94,234,212,.45);background:rgba(94,234,212,.10);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(2,12,16,.7);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease), visibility 220ms var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(320px,86vw);
  background:var(--ink-800);
  border-left:1px solid var(--line);
  padding:22px 20px 32px;
  transform:translateX(104%);
  transition:transform 260ms var(--ease);
  z-index:95;
  display:flex;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
}
.drawer-panel.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:10px;
  border-bottom:1px solid var(--line);
  color:var(--text-title);font-weight:700;
}
.drawer-close{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);
  background:transparent;color:var(--text-body);
  cursor:pointer;
}
.drawer-link{
  display:flex;align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-muted);
  font-size:15px;
  transition:background 180ms var(--ease), color 180ms var(--ease);
}
.drawer-link:hover{background:rgba(255,255,255,.06);color:var(--text-title);}
.drawer-link.is-active{color:var(--tone-glow);background:rgba(94,234,212,.10);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:70px 0 84px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-160px;right:-120px;
  width:520px;height:520px;
  background:radial-gradient(circle, rgba(14,165,160,.22), transparent 68%);
  pointer-events:none;
}
.hero-grid{row-gap:40px;position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-weak);}
.breadcrumb a:hover{color:var(--tone-glow);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--tone-primary);}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid rgba(94,234,212,.28);
  color:var(--tone-glow);
  font-size:12px;
  letter-spacing:.4px;
  backdrop-filter:blur(10px);
}
.badge i{font-size:11px;}
.hero-copy h1{margin:18px 0 16px;}
.hero-copy h1 .h1-sub{display:block;font-size:clamp(15px,1.6vw,19px);color:var(--tone-glow);font-weight:600;margin-top:10px;letter-spacing:.5px;}
.hero-sub{
  font-size:17px;
  color:var(--text-muted);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  font-size:13.5px;
  color:var(--text-weak);
}
.hero-points span{display:inline-flex;align-items:center;gap:7px;}
.hero-points i{color:var(--tone-primary);font-size:11px;}

.hero-figure{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-card);
  background:linear-gradient(160deg,var(--ink-700),var(--ink-900));
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(4,22,28,.10) 0%, rgba(4,22,28,.72) 100%);
}
.hero-stats{
  position:absolute;
  left:16px;right:16px;bottom:16px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  z-index:3;
}
.stat-pill{
  background:rgba(4,22,28,.68);
  border:1px solid rgba(255,255,255,.14);
  border-radius:12px;
  padding:10px 12px;
  backdrop-filter:blur(10px);
}
.stat-pill strong{
  display:block;
  font-family:"Inter","Barlow",sans-serif;
  font-size:18px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--tone-glow);
  line-height:1.2;
}
.stat-pill span{display:block;font-size:11.5px;color:var(--text-muted);margin-top:3px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:rgba(6,33,41,.72);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-muted);font-size:16px;}
.eyebrow{
  display:inline-block;
  font-family:"Inter",sans-serif;
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--tone-primary);
  margin-bottom:12px;
}

/* ---------- 支持范围 ---------- */
.scope-aside{padding-right:20px;}
.scope-aside h2{margin-bottom:16px;}
.scope-aside p{color:var(--text-muted);}
.scope-note{
  margin-top:22px;
  padding:16px 18px;
  border-radius:var(--radius-img);
  background:var(--glass);
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-muted);
}
.scope-list{display:grid;grid-template-columns:1fr;gap:14px;}
.scope-item{
  display:flex;
  gap:16px;
  padding:20px 22px;
  border-radius:var(--radius-img);
  background:var(--ink-700);
  border:1px solid var(--line);
  transition:border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}
.scope-item:hover{
  border-color:rgba(94,234,212,.35);
  transform:translateY(-3px);
  box-shadow:var(--shadow-card);
}
.scope-num{
  font-family:"Inter",sans-serif;
  font-size:15px;
  font-weight:700;
  color:var(--tone-primary);
  letter-spacing:1px;
  padding-top:2px;
  min-width:28px;
}
.scope-item h3{font-size:17px;margin-bottom:6px;}
.scope-item p{font-size:14.5px;color:var(--text-muted);margin:0;}

/* ---------- 服务级别表 ---------- */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  box-shadow:var(--shadow-card);
}
table.sla{
  width:100%;
  min-width:720px;
  border-collapse:collapse;
  margin:0;
  background:transparent;
  color:var(--text-body);
  font-size:14.5px;
}
table.sla caption{
  caption-side:top;
  text-align:left;
  padding:16px 20px 4px;
  color:var(--text-weak);
  font-size:13px;
}
table.sla thead th{
  background:rgba(14,165,160,.14);
  color:var(--text-title);
  font-weight:600;
  font-size:14px;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.sla tbody td{
  padding:15px 20px;
  border-bottom:1px solid rgba(255,255,255,.07);
  vertical-align:middle;
}
table.sla tbody tr:last-child td{border-bottom:none;}
table.sla tbody tr:hover td{background:rgba(94,234,212,.06);}
table.sla tbody td:first-child{color:var(--text-title);font-weight:600;}
.sla-tip{
  margin-top:18px;
  font-size:13.5px;
  color:var(--text-weak);
}
.hl{color:var(--tone-accent);font-weight:700;font-family:"Inter",sans-serif;}

/* ---------- 处理流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:flow;}
.flow-item{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--radius-card);
  background:linear-gradient(165deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:border-color 180ms var(--ease), transform 180ms var(--ease);
}
.flow-item:hover{border-color:rgba(94,234,212,.35);transform:translateY(-4px);}
.flow-item::before{
  counter-increment:flow;
  content:"0" counter(flow);
  display:block;
  font-family:"Inter",sans-serif;
  font-size:12px;
  font-weight:700;
  letter-spacing:1.5px;
  color:var(--tone-primary);
  margin-bottom:14px;
}
.flow-item::after{
  content:"";
  position:absolute;
  top:38px;right:-12px;
  width:24px;height:1px;
  background:rgba(94,234,212,.35);
}
.flow-item:last-child::after{display:none;}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--text-muted);margin:0;}

/* ---------- 图文交付 ---------- */
.split-figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:linear-gradient(160deg,var(--ink-700),var(--ink-900));
}
.split-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.split-copy h2{margin-bottom:16px;}
.split-copy p{color:var(--text-muted);}
.check-list{margin:24px 0 28px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;
  font-size:15px;
  color:var(--text-body);
  padding-bottom:12px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list i{color:var(--tone-glow);font-size:13px;margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-section{
  background:var(--paper);
  color:#0A2E38;
  padding:88px 0;
}
.faq-section h2{color:#062129;}
.faq-section .section-head p{color:#4B6870;}
.faq-list{display:grid;gap:12px;margin-top:8px;}
.faq-item{
  background:#FFFFFF;
  border:1px solid rgba(6,33,41,.08);
  border-radius:14px;
  overflow:hidden;
  transition:box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}
.faq-item.is-open{
  border-color:rgba(14,165,160,.35);
  box-shadow:0 18px 34px -26px rgba(6,33,41,.55);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 22px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  color:#0A2E38;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  position:relative;
  transition:color 180ms var(--ease), background 180ms var(--ease);
}
.faq-q:hover{background:rgba(14,165,160,.05);}
.faq-item.is-open .faq-q{color:var(--tone-primary-deep);}
.faq-q .faq-idx{
  font-family:"Inter",sans-serif;
  font-size:12px;
  font-weight:700;
  letter-spacing:1px;
  color:#8FA7AC;
  min-width:24px;
}
.faq-item.is-open .faq-q .faq-idx{color:var(--tone-primary);}
.faq-q .faq-icon{
  margin-left:auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(6,33,41,.12);
  color:#4B6870;
  font-size:12px;
  transition:transform 220ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}
.faq-item.is-open .faq-q .faq-icon{
  transform:rotate(180deg);
  color:var(--tone-primary-deep);
  border-color:rgba(14,165,160,.45);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px 60px;
  font-size:15px;
  line-height:1.8;
  color:#3D5A62;
}
.faq-item.is-open .faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--tone-primary);
}

/* ---------- 相关入口 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.related-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  transition:transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.related-card:hover{
  transform:translateY(-4px);
  border-color:rgba(94,234,212,.35);
  box-shadow:var(--shadow-card);
}
.related-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform 300ms var(--ease);
}
.related-card:hover img{transform:scale(1.03);}
.related-body{padding:18px 20px 22px;}
.related-body h3{font-size:16px;margin-bottom:8px;}
.related-body p{font-size:13.5px;color:var(--text-muted);margin-bottom:14px;}
.related-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;
  font-weight:600;
  color:var(--tone-glow);
}
.related-link:hover{gap:10px;color:var(--text-title);}

/* ---------- CTA 表单 ---------- */
.cta-section{padding:0 0 96px;}
.cta-panel{
  border-radius:22px;
  padding:44px 44px 42px;
  background:
    linear-gradient(150deg, rgba(14,165,160,.16), rgba(4,22,28,.2) 55%),
    var(--ink-800);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-100px;bottom:-140px;
  width:420px;height:420px;
  background:radial-gradient(circle, rgba(94,234,212,.18), transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{color:var(--text-muted);max-width:420px;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--text-body);}
.cta-points i{color:var(--tone-accent);font-size:12px;margin-top:6px;}

.form-grid{position:relative;z-index:2;display:grid;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;color:var(--text-muted);letter-spacing:.3px;}
.field input,.field textarea{
  width:100%;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:11px;
  padding:12px 14px;
  color:var(--text-title);
  font-size:15px;
  font-family:inherit;
  line-height:1.6;
  transition:border-color 180ms var(--ease), box-shadow 180ms var(--ease), background 180ms var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-weak);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--tone-glow);
  box-shadow:0 0 0 3px rgba(94,234,212,.18);
  background:rgba(255,255,255,.08);
}
.field.has-error input,.field.has-error textarea{
  border-color:var(--tone-accent);
  box-shadow:0 0 0 3px rgba(255,122,69,.16);
}
.field .err-text{display:none;font-size:12px;color:var(--tone-accent);}
.field.has-error .err-text{display:block;}
.form-tip{font-size:12.5px;color:var(--text-weak);}
.form-note{
  display:none;
  margin-top:4px;
  padding:12px 14px;
  border-radius:10px;
  background:rgba(94,234,212,.10);
  border:1px solid rgba(94,234,212,.35);
  color:var(--tone-glow);
  font-size:13.5px;
}
.form-note.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:50%;
  transform:translateX(-50%);
  width:min(720px,80%);
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(94,234,212,.45), transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand .brand{font-size:16px;margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-muted);line-height:1.8;margin-bottom:8px;}
.footer-col h4{
  font-size:14px;
  color:var(--tone-primary);
  margin-bottom:16px;
  letter-spacing:.5px;
  font-weight:600;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:var(--text-muted);}
.footer-col a:hover{color:var(--text-title);}
.footer-contact li{display:flex;gap:9px;font-size:13.5px;color:var(--text-muted);line-height:1.7;}
.footer-contact i{color:var(--tone-primary);font-size:12px;margin-top:6px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 22px;
  font-size:13px;
  color:var(--text-weak);
}
.footer-bottom .dot{opacity:.4;}
.back-top{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  color:var(--text-muted);
  font-size:13px;
  transition:border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}
.back-top:hover{border-color:rgba(94,234,212,.5);color:var(--text-title);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .grid-container{padding-left:32px;padding-right:32px;}
  .main-nav{gap:0;}
  .nav-link{padding:0 10px;font-size:14px;}
  .nav-link::after{left:10px;right:10px;}
  .header-actions .btn-sm{padding:9px 16px;font-size:13.5px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .flow-item::after{display:none;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{padding:36px 32px;}
}

@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .page-hero{padding:52px 0 64px;}
  .hero-figure{margin-top:8px;}
  .section{padding:76px 0;}
  .faq-section{padding:72px 0;}
  .scope-aside{padding-right:0;margin-bottom:8px;}
}

@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px;}
  h2{font-size:24px;}
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:15.5px;}
  .logo-mark{width:30px;height:30px;font-size:14px;border-radius:9px;}
  .header-actions .btn{display:none;}
  .page-hero{padding:40px 0 52px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-figure img{aspect-ratio:16/10;max-height:230px;}
  .hero-stats{position:static;grid-template-columns:repeat(3,1fr);margin-top:14px;left:auto;right:auto;bottom:auto;}
  .hero-figure::after{background:linear-gradient(180deg, rgba(4,22,28,.05) 0%, rgba(4,22,28,.45) 100%);}
  .stat-pill{padding:9px 10px;}
  .stat-pill strong{font-size:15px;}
  .stat-pill span{font-size:11px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:30px;}
  .flow-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .faq-section{padding:52px 0;}
  .faq-a-inner{padding-left:22px;}
  .cta-section{padding:0 0 56px;}
  .cta-panel{padding:28px 20px 30px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .site-footer{padding-top:48px;}
  .back-top{margin-left:0;}
  .scope-item{padding:18px 16px;}
  .table-wrap{border-radius:12px;}
}

@media (max-width:519px){
  h1{font-size:26px;}
  .hero-points{font-size:12.5px;gap:6px 14px;}
  .hero-stats{grid-template-columns:1fr;}
  .faq-q{padding:16px 16px;font-size:15px;gap:10px;}
  .faq-a-inner{padding:0 16px 18px 50px;font-size:14.5px;}
  .btn{padding:12px 20px;font-size:14px;}
}

/* roulang page: category4 */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-muted:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.06);
  --glass-solid:rgba(255,255,255,.07);
  --paper:#F2F7F7;
  --paper-ink:#062129;
  --paper-body:#3C5A60;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-glow:0 0 0 1px rgba(94,234,212,.45),0 10px 30px -8px rgba(14,165,160,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background:var(--ink-900);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 420px at 82% -6%,rgba(14,165,160,.16),transparent 68%),
    radial-gradient(520px 380px at 6% 24%,rgba(94,234,212,.08),transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--tone-glow);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:#A9FFF4}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;color:var(--text-title);font-weight:700;letter-spacing:.2px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 2px var(--tone-glow);border-radius:6px}
.grid-container{max-width:1200px;padding-left:40px;padding-right:40px}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.site-main{position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s var(--ease),border-color .2s var(--ease),backdrop-filter .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,22,28,.82);
  backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(14,165,160,.9),rgba(11,124,121,.55));
  box-shadow:0 0 0 1px rgba(94,234,212,.35),0 8px 18px -10px rgba(14,165,160,.8);
  flex-shrink:0;
}
.brand-mark svg{display:block;width:20px;height:20px}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--text-title);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-text i{font-style:normal;color:var(--text-weak);margin:0 4px;font-weight:400}
.brand-text em{font-style:normal;color:var(--tone-glow)}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-muted);
  padding:8px 0;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--tone-glow);
  box-shadow:0 0 10px rgba(94,234,212,.85);
  opacity:0;
  transform:translateY(3px);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--text-title)}
.nav-link:hover::after{opacity:.5;transform:translateY(0)}
.nav-link.is-active{color:var(--text-title);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:translateY(0)}
.header-cta{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:var(--tone-accent);
  color:#25130A;
  box-shadow:0 12px 26px -14px rgba(255,122,69,.85);
}
.btn-primary:hover{
  background:#FF9463;
  color:#25130A;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,122,69,.5),0 16px 32px -12px rgba(255,122,69,.7);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(255,122,69,.9)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  color:var(--tone-glow);
  border-color:rgba(14,165,160,.55);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  color:#B8FFF5;
  border-color:var(--tone-glow);
  box-shadow:inset 0 0 18px rgba(94,234,212,.22),0 0 0 1px rgba(94,234,212,.35);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 0 12px rgba(94,234,212,.2)}
.btn-sm{padding:10px 18px;font-size:14px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text-title);
  cursor:pointer;
}
.nav-toggle i{font-size:16px}

/* ---------- mobile drawer ---------- */
.m-nav{position:fixed;inset:0;z-index:200;visibility:hidden;pointer-events:none}
.m-nav.is-open{visibility:visible;pointer-events:auto}
.m-nav-overlay{
  position:absolute;inset:0;
  background:rgba(2,10,13,.72);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.m-nav.is-open .m-nav-overlay{opacity:1}
.m-nav-panel{
  position:absolute;
  top:0;right:0;
  width:82%;
  max-width:330px;
  height:100%;
  background:var(--ink-800);
  border-left:1px solid var(--line);
  padding:22px 22px 32px;
  display:flex;
  flex-direction:column;
  gap:6px;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.m-nav.is-open .m-nav-panel{transform:translateX(0)}
.m-nav-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.m-nav-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text-title);
  cursor:pointer;
}
.m-nav-link{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-muted);
  font-size:15px;
  border:1px solid transparent;
}
.m-nav-link:hover,.m-nav-link.is-active{
  color:var(--text-title);
  background:rgba(255,255,255,.06);
  border-color:rgba(94,234,212,.25);
}
.m-nav .btn{margin-top:16px;width:100%}

/* ---------- shared section ---------- */
.sec{padding:96px 0;position:relative}
.sec-tight{padding:72px 0}
.sec-head{max-width:640px}
.sec-head h2{font-size:32px;line-height:1.3}
.sec-head p{margin-top:14px;color:var(--text-muted);font-size:15px;line-height:1.8}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid var(--line-strong);
  color:var(--tone-glow);
  font-size:12px;
  letter-spacing:1px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--tone-glow);
  box-shadow:0 0 8px rgba(94,234,212,.9);
}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}

/* ---------- hero ---------- */
.hero{padding:56px 0 84px;position:relative}
.hero h1{
  font-size:clamp(30px,4vw,52px);
  line-height:1.15;
  font-weight:700;
  margin-bottom:20px;
}
.hero h1 span{color:var(--tone-glow)}
.hero-sub{
  font-size:17px;
  color:var(--text-muted);
  max-width:520px;
  line-height:1.8;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:var(--text-weak);
}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points span::after{content:"·";color:var(--text-weak)}
.hero-points span:last-child::after{content:""}
.hero-visual{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;border-radius:0;transform:scale(1.01)}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(4,22,28,.15),rgba(4,22,28,.78) 78%);
  pointer-events:none;
}
.hero-pills{
  position:absolute;
  right:16px;bottom:16px;
  display:flex;
  flex-direction:column;
  gap:8px;
  z-index:2;
}
.hero-pill{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  background:rgba(6,33,41,.72);
  border:1px solid rgba(94,234,212,.28);
  backdrop-filter:blur(10px);
  font-size:12px;
  color:var(--text-muted);
  white-space:nowrap;
}
.hero-pill b{
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  color:var(--tone-glow);
  letter-spacing:-.2px;
}

/* ---------- release system ---------- */
.sys-card{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-card);
  padding:28px;
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
  height:100%;
}
.sys-card h3{font-size:20px;line-height:1.4;margin-bottom:12px}
.sys-card p{color:var(--text-muted);font-size:15px;margin:0}
.sys-list{margin-top:8px}
.sys-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:18px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:transform .18s var(--ease);
}
.sys-item:hover{transform:translateX(4px)}
.sys-item:last-child{border-bottom:none;padding-bottom:0}
.sys-item:first-child{padding-top:0}
.sys-num{
  font-family:var(--font-num);
  font-weight:700;
  font-size:20px;
  color:var(--tone-primary);
  letter-spacing:-.5px;
  padding-top:2px;
}
.sys-item h3{font-size:18px;margin-bottom:8px}
.sys-item p{color:var(--text-muted);font-size:15px;margin:0}

/* ---------- timeline ---------- */
.timeline{margin-top:44px;position:relative}
.tl-item{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:32px;
  padding:28px 0;
  border-top:1px solid var(--line);
  position:relative;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:0;top:-1px;
  width:0;height:1px;
  background:var(--tone-glow);
  box-shadow:0 0 12px rgba(94,234,212,.8);
  transition:width .4s var(--ease);
}
.tl-item:hover::before{width:96px}
.tl-stage{
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  color:var(--tone-glow);
  letter-spacing:.6px;
  padding-top:3px;
}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{color:var(--text-muted);font-size:15px;margin:0 0 14px;max-width:760px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:rgba(14,165,160,.12);
  border:1px solid rgba(14,165,160,.32);
  color:var(--tone-glow);
  font-size:12px;
  letter-spacing:.2px;
}

/* ---------- release cards ---------- */
.card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  box-shadow:var(--shadow-card);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(94,234,212,.35);
  box-shadow:0 24px 46px -26px rgba(0,0,0,.8),0 0 0 1px rgba(94,234,212,.18);
}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(160deg,#0A2E38,#04161C)}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:14px;top:14px}
.badge{
  display:inline-flex;
  align-items:center;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  background:rgba(4,22,28,.72);
  border:1px solid rgba(94,234,212,.35);
  color:var(--tone-glow);
  font-size:12px;
  line-height:1.2;
  backdrop-filter:blur(8px);
}
.card-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;line-height:1.45}
.card-body p{color:var(--text-muted);font-size:15px;margin:0}
.card-link{
  margin-top:auto;
  font-size:14px;
  color:var(--tone-glow);
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
}
.card-link i{transition:transform .18s var(--ease)}
.card-link:hover i{transform:translateX(4px)}

/* ---------- stats (paper) ---------- */
.sec-paper{background:var(--paper);color:var(--paper-body)}
.sec-paper h2,.sec-paper h3{color:var(--paper-ink)}
.sec-paper .sec-head p{color:#4E6E74}
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:44px;
  border-top:1px solid rgba(6,33,41,.14);
}
.stat{
  padding:30px 22px 8px 0;
  border-right:1px solid rgba(6,33,41,.12);
}
.stat:last-child{border-right:none}
.stat-num{
  font-family:var(--font-num);
  font-weight:700;
  font-size:clamp(30px,3.4vw,42px);
  line-height:1.1;
  color:var(--tone-primary-deep);
  letter-spacing:-1px;
}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;letter-spacing:0}
.stat p{margin:10px 0 0;font-size:14px;color:#4E6E74;line-height:1.7}
.stats-note{
  margin-top:26px;
  font-size:13px;
  color:#5C7C82;
  padding-top:18px;
  border-top:1px solid rgba(6,33,41,.12);
}

/* ---------- media & partner ---------- */
.media-card{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
}
.media-card img{width:100%;height:100%;object-fit:cover;border-radius:0}
.media-card figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:18px 20px;
  font-size:13px;
  color:var(--text-body);
  background:linear-gradient(to top,rgba(4,22,28,.92),rgba(4,22,28,0));
}
.panel{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  height:100%;
}
.panel h3{font-size:18px;margin-bottom:14px}
.panel ul li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:9px 0;
  font-size:15px;
  color:var(--text-muted);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.panel ul li:last-child{border-bottom:none}
.panel ul li i{color:var(--tone-primary);font-size:12px;margin-top:7px}
.panel + .panel{margin-top:24px}

/* ---------- faq ---------- */
.faq-list{margin-top:40px;border-top:1px solid rgba(6,33,41,.14)}
.faq-item{border-bottom:1px solid rgba(6,33,41,.14)}
.faq-q{
  width:100%;
  display:grid;
  grid-template-columns:48px 1fr 24px;
  align-items:center;
  gap:14px;
  padding:22px 0;
  background:transparent;
  border:none;
  text-align:left;
  cursor:pointer;
  color:var(--paper-ink);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-num{
  font-family:var(--font-num);
  font-weight:700;
  font-size:14px;
  color:#7E9BA1;
  transition:color .18s var(--ease);
}
.faq-icon{
  position:relative;
  width:16px;height:16px;
  justify-self:end;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--tone-primary-deep);
  border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item.is-open .faq-q{color:var(--tone-primary-deep)}
.faq-item.is-open .faq-num{color:var(--tone-primary-deep)}
.faq-a{padding:0 0 24px 62px;color:var(--paper-body);font-size:15px;line-height:1.85}
.faq-a p{margin:0}
.faq-item{position:relative}
.faq-item::before{
  content:"";
  position:absolute;
  left:-14px;top:20px;
  width:3px;height:0;
  border-radius:3px;
  background:var(--tone-primary);
  transition:height .22s var(--ease);
}
.faq-item.is-open::before{height:24px}

/* ---------- related ---------- */
.rel-card{
  display:block;
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-card);
  padding:24px;
  height:100%;
  transition:transform .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(94,234,212,.35);
  background:rgba(255,255,255,.09);
}
.rel-card h3{font-size:17px;margin-bottom:8px;color:var(--text-title)}
.rel-card p{margin:0;font-size:14px;color:var(--text-muted);line-height:1.7}
.rel-card span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:13px;
  color:var(--tone-glow);
  font-weight:600;
}

/* ---------- cta form ---------- */
.cta-wrap{
  background:linear-gradient(160deg,rgba(10,46,56,.9),rgba(6,33,41,.92));
  border:1px solid var(--line-strong);
  border-radius:24px;
  padding:44px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-card);
}
.cta-wrap h2{font-size:30px;line-height:1.3;margin-bottom:16px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--text-muted);
}
.cta-points li i{color:var(--tone-glow);font-size:12px;margin-top:7px}
.form-row{margin-bottom:18px}
.form-row label{
  display:block;
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:8px;
}
.form-row input,
.form-row textarea{
  width:100%;
  padding:13px 16px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text-title);
  font-size:15px;
  font-family:inherit;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.form-row input::placeholder,
.form-row textarea::placeholder{color:var(--text-weak)}
.form-row input:focus,
.form-row textarea:focus{
  outline:none;
  border-color:var(--tone-glow);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(94,234,212,.16);
}
.form-row textarea{min-height:104px;resize:vertical}
.form-tip{font-size:12px;color:var(--text-weak);margin-top:14px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  padding-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,33,41,.55),rgba(4,22,28,1));
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:10%;right:10%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.55),transparent);
}
.footer-brand p{color:var(--text-muted);font-size:14px;line-height:1.8;margin:16px 0 0;max-width:280px}
.footer-col h4{
  font-size:14px;
  color:var(--tone-primary);
  letter-spacing:.6px;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-muted)}
.footer-col ul li a:hover{color:var(--text-title)}
.footer-col p{font-size:14px;color:var(--text-muted);line-height:1.8;margin:0 0 8px}
.footer-bottom{
  margin-top:52px;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-weak);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-muted);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  padding:8px 16px;
  background:rgba(255,255,255,.04);
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{color:var(--text-title);border-color:rgba(94,234,212,.4);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-visual{aspect-ratio:16/10;margin-top:32px}
  .sec{padding:72px 0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:none;border-bottom:1px solid rgba(6,33,41,.12);padding-right:0}
  .stat:nth-child(odd){padding-right:24px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-cta .btn{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .cta-wrap{padding:32px}
  .tl-item{grid-template-columns:96px 1fr;gap:20px}
}
@media (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px}
  .hero{padding:32px 0 56px}
  .hero h1{margin-bottom:16px}
  .hero-sub{font-size:16px}
  .hero-visual{aspect-ratio:auto;height:220px}
  .hero-pills{right:12px;bottom:12px;gap:6px}
  .hero-pill{padding:6px 10px;font-size:11px}
  .sec{padding:48px 0}
  .sec-head h2{font-size:24px}
  .sys-card{padding:20px;backdrop-filter:none;background:var(--glass-solid)}
  .card-body{padding:20px}
  .tl-item{grid-template-columns:1fr;gap:8px}
  .tl-stage{padding-top:0}
  .faq-q{grid-template-columns:34px 1fr 20px;gap:10px;font-size:15px;padding:18px 0}
  .faq-a{padding-left:44px;font-size:14px}
  .cta-wrap{padding:24px;border-radius:18px}
  .cta-wrap h2{font-size:23px}
  .site-footer{margin-top:56px;padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:36px}
  .stats{margin-top:28px}
  .stat-num{font-size:28px}
}
@media (max-width:519px){
  .brand-text{font-size:16px}
  .brand-mark{width:30px;height:30px}
  .hero-actions .btn{width:100%}
  .panel{padding:20px}
  .rel-card{padding:20px}
}

/* roulang page: category5 */
:root{
  --ink-900:#04161C;
  --ink-800:#062129;
  --ink-700:#0A2E38;
  --tone-primary:#0EA5A0;
  --tone-primary-deep:#0B7C79;
  --tone-accent:#FF7A45;
  --tone-glow:#5EEAD4;
  --text-title:#EAF6F6;
  --text-body:#D7E7E8;
  --text-muted:#A6BFC3;
  --text-weak:#6E8A90;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.06);
  --glass-solid:rgba(255,255,255,.07);
  --paper:#F2F7F7;
  --paper-line:rgba(4,22,28,.12);
  --paper-text:#0A2E38;
  --paper-muted:#4A6970;
  --radius-card:16px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.65);
  --shadow-soft:0 12px 28px -20px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
  --space-section:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background:var(--ink-900);
  background-image:
    radial-gradient(900px 420px at 82% -6%, rgba(14,165,160,.16), transparent 66%),
    radial-gradient(680px 320px at 4% 22%, rgba(94,234,212,.08), transparent 70%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--text-title);font-weight:700;line-height:1.3;letter-spacing:0}
p{margin:0}
a{color:var(--tone-glow);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:#ffffff}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
::selection{background:rgba(14,165,160,.4);color:#fff}
:focus-visible{outline:2px solid var(--tone-glow);outline-offset:3px}
.grid-container{max-width:1200px;width:100%;padding-left:40px;padding-right:40px;margin-left:auto;margin-right:auto}
.grid-container.align-center{justify-content:center}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px;min-width:0}
.section{padding:var(--space-section) 0;position:relative}
.section--divide{border-top:1px solid var(--line)}
.section--paper{background:var(--paper);color:var(--paper-text)}
.section--paper h2,.section--paper h3{color:var(--paper-text)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--tone-glow);margin-bottom:14px}
.section--paper .section-head .eyebrow{color:var(--tone-primary-deep)}
h2{font-size:32px;line-height:1.3}
h3{font-size:20px;line-height:1.4}
.section-head p{margin-top:14px;color:var(--text-muted);font-size:16px;max-width:66ch}
.section--paper .section-head p{color:var(--paper-muted)}
.lead{font-size:17px;line-height:1.8;color:var(--text-body)}
small,.text-small{font-size:13px;line-height:1.6}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform 180ms var(--ease),background-color 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.btn-primary{
  background:var(--tone-accent);color:#1A0B04;
  box-shadow:0 10px 30px -14px rgba(255,122,69,.7);
}
.btn-primary:hover{background:#ff8f61;color:#1A0B04;transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(255,122,69,.8)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -10px rgba(255,122,69,.75)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--tone-glow);border-color:rgba(14,165,160,.85);
  box-shadow:inset 0 0 0 0 rgba(94,234,212,0);
}
.btn-ghost:hover{color:#ffffff;border-color:var(--tone-glow);transform:translateY(-2px);box-shadow:inset 0 0 18px 0 rgba(94,234,212,.18),0 0 0 1px rgba(94,234,212,.35)}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 0 12px 0 rgba(94,234,212,.16)}
.btn-sm{padding:10px 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--tone-glow)}
.link-arrow:hover{gap:10px;color:#fff}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--radius-pill);
  font-size:12px;line-height:1.4;letter-spacing:.02em;
  background:rgba(94,234,212,.10);border:1px solid rgba(94,234,212,.28);
  color:var(--tone-glow);
}
.badge--accent{background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.35);color:#FFB08A}
.section--paper .badge{background:rgba(14,165,160,.10);border-color:rgba(11,124,121,.32);color:var(--tone-primary-deep)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(4,22,28,.72);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{background:rgba(4,22,28,.94);box-shadow:0 18px 34px -26px rgba(0,0,0,.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-title);letter-spacing:.01em}
.brand:hover{color:var(--text-title)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--tone-glow),var(--tone-primary) 55%,var(--tone-primary-deep));
  color:#04161C;font-size:15px;font-weight:800;
  box-shadow:0 0 0 1px rgba(94,234,212,.35),0 10px 24px -14px rgba(14,165,160,.9);
}
.brand-name em{font-style:normal;color:var(--tone-glow)}
.brand-name .sep{color:var(--text-weak);margin:0 2px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text-muted);border-radius:10px;
  transition:color 180ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
  background:var(--tone-glow);opacity:0;transform:scaleX(.6);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease);
  box-shadow:0 0 12px rgba(94,234,212,.85);
}
.nav-link:hover{color:var(--text-title)}
.nav-link:hover::after{opacity:.55;transform:scaleX(1)}
.nav-link.is-active{color:var(--text-title);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-cta{margin-left:10px}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);color:var(--text-title);cursor:pointer;
}
.menu-toggle:hover{border-color:rgba(94,234,212,.5);color:var(--tone-glow)}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(2,10,13,.7);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:95;
  background:var(--ink-800);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 260ms var(--ease);
  padding:22px 20px 30px;display:flex;flex-direction:column;gap:6px;
  box-shadow:-30px 0 60px -40px rgba(0,0,0,.95);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);
  background:transparent;color:var(--text-muted);cursor:pointer;font-size:18px;line-height:1;
}
.drawer-close:hover{color:var(--tone-glow);border-color:rgba(94,234,212,.4)}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-body);font-size:15px;border:1px solid transparent;
}
.drawer-link:hover{background:rgba(255,255,255,.06);color:var(--text-title)}
.drawer-link.is-active{color:var(--tone-glow);border-color:rgba(94,234,212,.3);background:rgba(94,234,212,.08)}
.drawer-cta{margin-top:16px}
.drawer-cta .btn{width:100%}

/* ===== 页头区 ===== */
.page-hero{padding:72px 0 0;position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:auto -10% 0 40%;height:420px;
  background:radial-gradient(closest-side,rgba(14,165,160,.20),transparent 72%);
  opacity:.85;pointer-events:none;
}
.page-hero-grid{position:relative;z-index:2;padding-bottom:56px}
.page-hero h1{font-size:clamp(30px,4vw,52px);line-height:1.15;font-weight:700;max-width:16em}
.page-hero h1 .hl{color:var(--tone-glow)}
.page-hero .hero-sub{margin-top:20px;font-size:18px;line-height:1.7;color:var(--text-body);max-width:34em}
.hero-points{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin-top:24px;color:var(--text-muted);font-size:14px}
.hero-points .dot{width:4px;height:4px;border-radius:50%;background:var(--tone-primary);display:inline-block}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/11;
  background:linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.82}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,22,28,.10),rgba(4,22,28,.72));
}
.hero-media-caption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:3;
  display:flex;flex-wrap:wrap;gap:8px;
}
.hero-media-caption span{
  font-size:12px;color:#DFF7F4;padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(4,22,28,.62);border:1px solid rgba(94,234,212,.28);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.hero-strip{margin-top:34px;height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}

/* ===== 联系渠道卡 ===== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.channel-card{
  position:relative;padding:28px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16),var(--shadow-soft);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  display:flex;flex-direction:column;
}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 26px 46px -28px rgba(0,0,0,.9)}
.channel-num{
  font-family:Inter,"Barlow",var(--font-cn);font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--tone-primary);margin-bottom:16px;
}
.channel-card h3{margin-bottom:12px}
.channel-card p{color:var(--text-muted);font-size:15px;line-height:1.75}
.channel-meta{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);display:grid;gap:8px;font-size:14px;color:var(--text-body)}
.channel-meta .k{color:var(--text-weak);font-size:13px}
.channel-card .link-arrow{margin-top:auto;padding-top:20px}

/* ===== 流程时间线 ===== */
.flow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;margin-top:8px}
.flow-item{
  position:relative;padding:26px 22px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--line);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease);
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.3)}
.flow-item::before{
  content:"";position:absolute;left:22px;top:0;width:44px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--tone-glow),var(--tone-primary));
}
.flow-step{font-family:Inter,"Barlow",var(--font-cn);font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--tone-glow);margin-bottom:12px}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--text-muted)}
.flow-time{display:inline-block;margin-top:14px;font-size:12px;color:#CFEFEC;background:rgba(14,165,160,.14);border:1px solid rgba(14,165,160,.3);padding:4px 10px;border-radius:var(--radius-pill)}

/* ===== 响应时限表 ===== */
.table-title{font-size:20px;margin:56px 0 18px;color:var(--text-title)}
.table-scroll{overflow-x:auto;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--ink-800)}
table.sla-table{width:100%;border-collapse:collapse;min-width:720px;font-size:14px}
table.sla-table caption{caption-side:top;text-align:left;padding:16px 20px 0;color:var(--text-weak);font-size:13px}
table.sla-table th,table.sla-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.sla-table thead th{
  font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--tone-glow);
  background:rgba(14,165,160,.08);white-space:nowrap;
}
table.sla-table tbody td{color:var(--text-body)}
table.sla-table tbody td:first-child{color:var(--text-title);font-weight:600;white-space:nowrap}
table.sla-table tbody tr:last-child td{border-bottom:none}
table.sla-table tbody tr:hover{background:rgba(255,255,255,.03)}

/* ===== 服务网络（图文分栏） ===== */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;background:linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,22,28,0),rgba(4,22,28,.45))}
.stat-pill{
  position:absolute;left:16px;bottom:16px;z-index:3;
  display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:var(--radius-pill);
  background:rgba(4,22,28,.7);border:1px solid rgba(94,234,212,.28);
  font-size:13px;color:#DFF7F4;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.stat-pill b{font-family:Inter,"Barlow",var(--font-cn);font-size:16px;color:var(--tone-accent);font-weight:700}
.feature-list{display:grid;gap:16px;margin-top:24px}
.feature-list li{
  display:flex;gap:14px;padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.feature-list li:hover{border-color:rgba(94,234,212,.28);background:rgba(255,255,255,.06)}
.feature-list .fi{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(94,234,212,.35);color:var(--tone-glow);
  font-family:Inter,"Barlow",var(--font-cn);font-size:13px;font-weight:700;
}
.feature-list h3{font-size:16px;margin-bottom:4px}
.feature-list p{font-size:14px;color:var(--text-muted);line-height:1.7}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#FFFFFF;border:1px solid var(--paper-line);border-radius:14px;
  overflow:hidden;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--tone-primary);
  transform:scaleY(0);transform-origin:top;transition:transform 200ms var(--ease);
}
.faq-item.is-open{border-color:rgba(14,165,160,.5);box-shadow:0 16px 30px -26px rgba(4,22,28,.6)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--paper-text);line-height:1.7;
  transition:color 180ms var(--ease);
}
.faq-q:hover{color:var(--tone-primary-deep)}
.faq-item.is-open .faq-q{color:var(--tone-primary-deep)}
.faq-q .no{
  flex:0 0 auto;font-family:Inter,"Barlow",var(--font-cn);font-size:13px;font-weight:700;
  color:var(--tone-primary-deep);letter-spacing:.08em;padding-top:3px;
}
.faq-q .ico{
  margin-left:auto;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(4,22,28,.22);display:grid;place-items:center;
  font-size:12px;color:var(--paper-muted);transition:transform 200ms var(--ease),background-color 200ms var(--ease),color 200ms var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);background:var(--tone-primary-deep);border-color:var(--tone-primary-deep);color:#fff}
.faq-a{padding:0 22px 20px 58px;font-size:15px;line-height:1.8;color:var(--paper-muted);display:none}
.faq-item.is-open .faq-a{display:block}

/* ===== 相关入口卡片 ===== */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  display:flex;gap:20px;align-items:center;padding:20px;border-radius:var(--radius-card);
  background:var(--ink-800);border:1px solid var(--line);text-decoration:none;
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(94,234,212,.35);background:var(--ink-700);color:inherit}
.entry-thumb{
  flex:0 0 112px;width:112px;aspect-ratio:4/3;border-radius:10px;overflow:hidden;
  background:linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms var(--ease)}
.entry-card:hover .entry-thumb img{transform:scale(1.05)}
.entry-body h3{font-size:17px;margin-bottom:6px}
.entry-body p{font-size:14px;color:var(--text-muted);line-height:1.7}
.entry-body .link-arrow{margin-top:10px;font-size:13px}

/* ===== CTA 表单 ===== */
.cta-panel{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(680px 280px at 8% 0%,rgba(14,165,160,.22),transparent 68%),
    radial-gradient(520px 240px at 92% 100%,rgba(255,122,69,.14),transparent 70%),
    var(--ink-800);
  box-shadow:var(--shadow-card);
  padding:44px;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.cta-copy h2{margin-bottom:16px}
.cta-copy p{color:var(--text-muted);font-size:15px;line-height:1.8;max-width:34em}
.cta-benefits{display:grid;gap:12px;margin-top:24px}
.cta-benefits li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-body)}
.cta-benefits .tick{
  flex:0 0 18px;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(94,234,212,.16);border:1px solid rgba(94,234,212,.4);color:var(--tone-glow);
  font-size:11px;margin-top:4px;
}
.form-grid{display:grid;gap:18px}
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--text-muted);letter-spacing:.02em}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  color:var(--text-title);line-height:1.6;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease),background-color 180ms var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-weak)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--tone-glow);background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(94,234,212,.16);
}
.field textarea{min-height:112px;resize:vertical}
.field.has-error input,.field.has-error textarea{border-color:var(--tone-accent);box-shadow:0 0 0 3px rgba(255,122,69,.14)}
.field .err{display:none;font-size:12px;color:#FFB08A}
.field.has-error .err{display:block}
.form-note{font-size:12px;color:var(--text-weak);line-height:1.7}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-alert{
  display:none;padding:12px 16px;border-radius:12px;font-size:13px;
  background:rgba(94,234,212,.10);border:1px solid rgba(94,234,212,.35);color:#CFF7F2;
}
.form-alert.is-visible{display:block}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;margin-top:0;padding:72px 0 28px;
  border-top:1px solid var(--line);
  background:
    radial-gradient(720px 260px at 50% 0%,rgba(14,165,160,.12),transparent 72%),
    var(--ink-900);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h4{font-size:14px;color:var(--tone-primary);letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-col p{font-size:14px;color:var(--text-muted);line-height:1.8;max-width:32em}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--text-muted)}
.footer-col a{color:var(--text-muted);font-size:14px}
.footer-col a:hover{color:var(--tone-glow)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:0 0 0 1px rgba(94,234,212,.3)}
.footer-contact li{display:flex;gap:8px;align-items:flex-start;color:var(--text-body)}
.footer-contact .k{color:var(--text-weak);flex:0 0 auto}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-weak);
}
.footer-bottom .to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-muted);font-size:13px}
.footer-bottom .to-top:hover{color:var(--tone-glow)}

/* ===== 响应式 ===== */
@media screen and (max-width:1199px){
  :root{--space-section:72px}
  .grid-container{padding-left:32px;padding-right:32px}
  .flow-wrap{grid-template-columns:repeat(2,1fr)}
  .split{gap:40px}
  .cta-panel{padding:36px}
  .cta-grid{gap:36px}
}
@media screen and (max-width:1023px){
  .main-nav,.header-cta{display:none}
  .menu-toggle{display:inline-flex}
  .page-hero{padding-top:52px}
  .page-hero-grid{padding-bottom:40px}
  .page-hero .hero-sub{font-size:17px}
  .hero-media{aspect-ratio:16/9;margin-top:36px}
  .channel-grid{grid-template-columns:1fr 1fr}
  .entry-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{aspect-ratio:16/10}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  :root{--space-section:48px}
  .grid-container{padding-left:20px;padding-right:20px}
  body{font-size:16px}
  h2{font-size:24px}
  .header-inner{height:64px}
  .page-hero h1{font-size:clamp(26px,7.4vw,36px)}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .channel-grid{grid-template-columns:1fr}
  .channel-card{padding:20px}
  .flow-wrap{grid-template-columns:1fr}
  .entry-card{flex-direction:column;align-items:flex-start;gap:14px}
  .entry-thumb{width:100%;flex:none;aspect-ratio:16/9}
  .cta-panel{padding:24px 20px;border-radius:16px}
  .faq-q{padding:16px 16px;font-size:15px;gap:10px}
  .faq-a{padding:0 16px 16px 46px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head{margin-bottom:28px}
}
@media screen and (max-width:519px){
  .hero-points{font-size:13px}
  .hero-media{aspect-ratio:4/3}
  .table-scroll{border-radius:12px}
  table.sla-table{min-width:640px}
  .brand{font-size:15px}
  .brand-mark{width:30px;height:30px;flex-basis:30px;font-size:13px;border-radius:9px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
@media screen and (max-width:767px){
  .channel-card,.modal-glass{-webkit-backdrop-filter:none;backdrop-filter:none;background:var(--glass-solid)}
}