/* roulang page: index */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.08);
  --text-1:#E9EFFA;
  --text-2:#A7B3C8;
  --text-3:#6C7A93;
  --brand:#2FE3C4;
  --brand-deep:#17B79C;
  --accent:#FFB84D;
  --spark:#7A5CFF;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(47,227,196,.45);
  --r-btn:12px;
  --r-card:16px;
  --r-panel:20px;
  --r-pill:999px;
  --container:1200px;
  --shadow:0 0 0 1px rgba(255,255,255,.04), 0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 22px rgba(47,227,196,.18);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 46%,var(--bg-0) 100%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:740px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);letter-spacing:2px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(47,227,196,.26);background:rgba(47,227,196,.07);
}
.eyebrow i{font-size:11px;}
.section-head h2{font-size:clamp(24px,3vw,36px);margin:16px 0 14px;}
.section-head p{color:var(--text-2);font-size:16px;}
.hl{color:var(--brand);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease, filter .25s ease;
  white-space:nowrap;
}
.btn i{font-size:13px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04231F;box-shadow:var(--glow);
}
.btn-primary:hover{box-shadow:0 0 32px rgba(47,227,196,.42);filter:brightness(1.06);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(255,255,255,.05);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;}
.link-arrow i{transition:transform .25s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,20,.74);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .3s ease, box-shadow .3s ease, border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,10,20,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.header-top-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;
}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:19px;font-weight:700;letter-spacing:.3px;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04231F;font-weight:800;font-size:17px;
  box-shadow:0 0 18px rgba(47,227,196,.35);
}
.brand-text{background:linear-gradient(90deg,#FFFFFF,#BFEFE4);-webkit-background-clip:text;background-clip:text;color:transparent;}
.header-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:9px;
  padding:0 16px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--panel);transition:.25s;
}
.search-box i{color:var(--text-3);font-size:13px;}
.search-box input{
  background:transparent;border:0;outline:none;color:var(--text-1);
  font-size:14px;width:196px;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--line-hover);box-shadow:0 0 0 4px rgba(47,227,196,.14);}
.hamburger{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--line);background:var(--panel);color:var(--text-1);cursor:pointer;
}
.header-nav{border-top:1px solid var(--line);}
.nav-scroll{display:flex;align-items:center;gap:6px;height:54px;overflow-x:auto;scrollbar-width:none;}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;transition:.22s;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--brand);background:rgba(47,227,196,.1);}
.nav-link.is-active::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px var(--brand);
}
.nav-link .nav-tip{
  font-size:11px;color:var(--text-3);border:1px solid var(--line);
  padding:0 6px;border-radius:var(--r-pill);line-height:16px;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(8,13,24,.98);padding:14px 0 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;gap:10px;
  padding:13px 24px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.is-active{color:var(--brand);}
.mobile-drawer a.is-active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px var(--brand);
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 68px;
  background:
    radial-gradient(880px 520px at 84% 6%,rgba(47,227,196,.16),transparent 62%),
    radial-gradient(660px 420px at 6% 0%,rgba(122,92,255,.13),transparent 62%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1));
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  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(720px 460px at 62% 28%,#000,transparent 78%);
  mask-image:radial-gradient(720px 460px at 62% 28%,#000,transparent 78%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;margin:20px 0 18px;
  background:linear-gradient(120deg,#FFFFFF 32%,#9DF3E2 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:560px;}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-stats{display:flex;margin-top:48px;padding-top:26px;border-top:1px solid var(--line);}
.stat{flex:1;padding-right:20px;}
.stat + .stat{border-left:1px solid var(--line);padding-left:22px;}
.stat-num{
  display:block;font-family:var(--mono);font-size:32px;font-weight:700;
  color:var(--brand);line-height:1.15;letter-spacing:.5px;
}
.stat-label{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}
.hero-media{position:relative;}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-panel);
  background:linear-gradient(190deg,rgba(6,10,20,0) 40%,rgba(6,10,20,.82) 100%);
  pointer-events:none;
}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-panel);border:1px solid var(--line);
  box-shadow:var(--shadow),0 0 40px rgba(47,227,196,.14);
}
.hero-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(6,10,20,.72);border:1px solid rgba(47,227,196,.32);
  backdrop-filter:blur(10px);font-size:13px;color:var(--text-1);
}
.hero-badge i{color:var(--brand);}

/* ---------- 品牌主张 ---------- */
.statement{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.statement-copy p{color:var(--text-2);margin-bottom:16px;}
.statement-copy p:last-child{margin-bottom:0;}
.ability-list{display:grid;gap:14px;}
.ability{
  display:flex;gap:16px;padding:20px 22px;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--panel);
  position:relative;overflow:hidden;transition:.28s;
}
.ability::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),transparent);opacity:.6;
}
.ability:hover{transform:translateY(-3px);border-color:var(--line-hover);background:var(--panel-strong);}
.ability-icon{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,227,196,.1);border:1px solid rgba(47,227,196,.24);color:var(--brand);
}
.ability-icon.spark{background:rgba(122,92,255,.12);border-color:rgba(122,92,255,.3);color:#A895FF;}
.ability-icon.gold{background:rgba(255,184,77,.12);border-color:rgba(255,184,77,.3);color:var(--accent);}
.ability h3{font-size:17px;margin-bottom:4px;}
.ability p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- 时间线 ---------- */
.timeline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.tl-item{
  padding:26px 24px;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  position:relative;transition:.28s;
}
.tl-item:hover{transform:translateY(-3px);border-color:var(--line-hover);}
.tl-index{
  display:grid;place-items:center;width:52px;height:52px;border-radius:15px;
  font-family:var(--mono);font-size:17px;color:var(--brand);
  background:rgba(47,227,196,.08);border:1px solid rgba(47,227,196,.26);
  margin-bottom:18px;
}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ---------- 精选内容 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.fcard{
  grid-column:span 2;position:relative;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  padding:22px;display:flex;flex-direction:column;gap:12px;
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.fcard-lg{grid-column:span 4;padding:0;}
.fcard:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:0 14px 40px rgba(0,0,0,.42);}
.fcard-media{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;}
.fcard-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.fcard:hover .fcard-media img{transform:scale(1.04);}
.fcard-lg .fcard-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;
  background:rgba(47,227,196,.12);color:var(--brand);border:1px solid rgba(47,227,196,.26);
}
.tag.spark{background:rgba(122,92,255,.14);color:#A895FF;border-color:rgba(122,92,255,.3);}
.tag.gold{background:rgba(255,184,77,.13);color:var(--accent);border-color:rgba(255,184,77,.3);}
.fcard h3{font-size:18px;line-height:1.45;}
.fcard-lg h3{font-size:24px;}
.fcard p{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.fcard-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--text-3);}
.fcard-sm{padding:20px;}
.fcard-sm .mini-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(122,92,255,.12);border:1px solid rgba(122,92,255,.28);color:#A895FF;
}

/* ---------- 最新信息（CMS） ---------- */
.news-wrap{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  padding:30px;box-shadow:var(--shadow);
}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.news-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(255,255,255,.028);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.news-item:hover{transform:translateY(-2px);border-color:var(--line-hover);background:rgba(47,227,196,.05);}
.news-thumb{
  flex:0 0 54px;width:54px;height:54px;border-radius:14px;
  display:grid;place-items:center;font-size:13px;font-weight:600;text-align:center;
  background:linear-gradient(150deg,rgba(47,227,196,.2),rgba(122,92,255,.16));
  border:1px solid rgba(47,227,196,.28);color:var(--brand);line-height:1.25;
}
.news-body{flex:1;min-width:0;}
.news-body h3{font-size:16px;line-height:1.5;margin-bottom:6px;}
.news-body p{
  font-size:13px;color:var(--text-2);line-height:1.65;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3);}
.news-foot .cat{
  padding:2px 10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text-2);
}
.news-arrow{color:var(--brand);font-size:13px;transition:transform .25s ease;}
.news-item:hover .news-arrow{transform:translateX(4px);}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:52px 20px;text-align:center;color:var(--text-2);
}
.news-empty i{font-size:34px;color:var(--text-3);}

/* ---------- 信任背书 ---------- */
.logo-strip{
  display:flex;gap:12px;overflow-x:auto;padding:20px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:44px;scrollbar-width:none;
}
.logo-strip::-webkit-scrollbar{display:none;}
.logo-item{
  flex:0 0 auto;padding:10px 22px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-3);font-size:14px;
  filter:grayscale(1);opacity:.75;transition:.28s;
}
.logo-item:hover{filter:none;opacity:1;color:var(--brand);border-color:var(--line-hover);}
.trust-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:24px;align-items:stretch;}
.quote-card{
  padding:26px;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  display:flex;flex-direction:column;gap:16px;transition:.28s;
}
.quote-card:hover{transform:translateY(-3px);border-color:var(--line-hover);}
.quote-card.featured{
  padding:34px;border-color:rgba(47,227,196,.3);
  background:radial-gradient(420px 220px at 10% 0%,rgba(47,227,196,.14),transparent 70%),linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
}
.quote-card .quote-mark{font-size:26px;color:var(--brand);opacity:.7;line-height:1;}
.quote-card p{color:var(--text-2);font-size:15px;line-height:1.8;}
.quote-card.featured p{color:var(--text-1);font-size:16px;}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-weight:700;font-size:15px;color:#04231F;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
}
.avatar.gold{background:linear-gradient(140deg,var(--accent),#E0952F);color:#2A1A02;}
.avatar.spark{background:linear-gradient(140deg,#9C86FF,#6A48F5);color:#F3F0FF;}
.quote-person strong{display:block;font-size:15px;}
.quote-person span{display:block;font-size:12px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.035);transition:border-color .25s,background .25s;
}
.faq-item[open]{border-color:rgba(47,227,196,.3);background:rgba(255,255,255,.055);}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-plus{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--brand);font-size:12px;
  transition:transform .3s ease,border-color .3s ease;
}
.faq-item[open] .faq-plus{transform:rotate(45deg);border-color:rgba(47,227,196,.45);}
.faq-answer{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);border:1px solid rgba(47,227,196,.28);
  background:
    radial-gradient(620px 320px at 10% 0%,rgba(47,227,196,.18),transparent 66%),
    radial-gradient(520px 300px at 96% 100%,rgba(122,92,255,.16),transparent 68%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  padding:46px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  background-size:200% 100%;animation:flow 3.6s linear infinite;
}
@keyframes flow{0%{background-position:-120% 0}100%{background-position:220% 0}}
.cta-panel h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px;}
.cta-panel p{color:var(--text-2);font-size:15px;}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 220px;height:50px;padding:0 18px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.045);
  color:var(--text-1);outline:none;transition:.25s;
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,227,196,.16);}
.sub-note{font-size:12px;color:var(--text-3);margin-top:12px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;padding-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-0),#03060D);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.85;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:18px;letter-spacing:.4px;}
.footer-col a{display:block;padding:7px 0;color:var(--text-2);font-size:14px;transition:color .22s,transform .22s;}
.footer-col a:hover{color:var(--brand);transform:translateX(3px);}
.footer-contact li{display:flex;gap:10px;padding:7px 0;color:var(--text-2);font-size:14px;}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero-grid{gap:40px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .hero{padding:56px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-media img{aspect-ratio:16/9;}
  .search-box{display:none;}
  .statement{grid-template-columns:1fr;gap:36px;}
  .timeline-grid{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .fcard{grid-column:span 1;}
  .fcard-lg{grid-column:span 2;}
  .news-list{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr 1fr;}
  .quote-card.featured{grid-column:span 2;}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .header-top-inner{height:64px;}
  .brand{font-size:16px;}
  .brand-mark{width:32px;height:32px;border-radius:9px;font-size:15px;}
  .header-actions .btn{display:none;}
  .hamburger{display:grid;place-items:center;}
  .nav-scroll{height:48px;}
  .nav-link{font-size:14px;padding:8px 12px;}
  .hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-stats{flex-direction:column;gap:16px;padding-top:20px;}
  .stat{padding-right:0;}
  .stat + .stat{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:16px;}
  .timeline-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .fcard,.fcard-lg{grid-column:span 1;}
  .fcard-lg h3{font-size:19px;}
  .news-wrap{padding:18px;}
  .trust-grid{grid-template-columns:1fr;}
  .quote-card.featured{grid-column:span 1;padding:26px;}
  .cta-panel{padding:28px 20px;}
  .sub-form input{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.08);
  --text-1:#E9EFFA;
  --text-2:#A7B3C8;
  --text-3:#6C7A93;
  --brand:#2FE3C4;
  --brand-deep:#17B79C;
  --accent:#FFB84D;
  --spark:#7A5CFF;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(47,227,196,.45);
  --radius-btn:12px;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-pill:999px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06), 0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 22px rgba(47,227,196,.18);
  --glow-strong:0 0 32px rgba(47,227,196,.32);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:Inter,ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(47,227,196,.10), transparent 60%),
    radial-gradient(700px 420px at 88% 4%, rgba(122,92,255,.10), transparent 62%),
    linear-gradient(180deg,var(--bg-0) 0%, var(--bg-1) 45%, var(--bg-2) 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, rgba(0,0,0,.9), transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, rgba(0,0,0,.9), transparent 78%);
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.25}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn i{font-size:13px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#04231D;box-shadow:0 0 18px rgba(47,227,196,.22);
}
.btn-primary:hover{box-shadow:var(--glow-strong);filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.03);border-color:var(--line);color:var(--text-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(47,227,196,.07)}
.btn-pill{border-radius:var(--radius-pill)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;
}
.btn-text i{transition:transform .2s ease;font-size:12px}
.btn-text:hover i{transform:translateX(3px)}

/* ============ 顶部进度条 ============ */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 12px rgba(47,227,196,.5);
  transition:width .12s linear;
}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.82);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-top{
  display:flex;align-items:center;gap:18px;
  padding-top:16px;padding-bottom:14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04231D;font-weight:800;font-size:18px;
  box-shadow:0 0 16px rgba(47,227,196,.28);
}
.brand-text{color:var(--text-1);font-size:17px;font-weight:700;letter-spacing:.4px}
.nav-search{
  margin-left:auto;display:flex;align-items:center;gap:10px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:9px 16px;max-width:300px;flex:1 1 200px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,227,196,.16)}
.nav-search i{color:var(--text-3);font-size:13px}
.nav-search input{
  background:transparent;border:0;outline:0;color:var(--text-1);
  font-size:14px;width:100%;font-family:inherit;
}
.nav-search input::placeholder{color:var(--text-3)}
.header-cta{flex-shrink:0}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-1);font-size:16px;
}
.header-nav{border-top:1px solid var(--line)}
.nav-scroll{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;padding:13px 16px;font-size:14.5px;color:var(--text-2);
  white-space:nowrap;font-weight:500;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(47,227,196,0));
  box-shadow:0 0 10px rgba(47,227,196,.6);
}
.drawer{display:none}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:26px 24px 0;font-size:13.5px;color:var(--text-3);
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{padding:26px 0 34px;position:relative}
.article-hero::after{
  content:"";position:absolute;left:24px;right:24px;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(47,227,196,.55),rgba(255,184,77,.28),transparent);
}
.article-hero .container{max-width:920px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;
  background:rgba(47,227,196,.10);color:var(--brand);border:1px solid rgba(47,227,196,.28);
}
.tag.tag-amber{background:rgba(255,184,77,.10);color:var(--accent);border-color:rgba(255,184,77,.28)}
.tag.tag-violet{background:rgba(122,92,255,.12);color:#A794FF;border-color:rgba(122,92,255,.3)}
.article-hero h1{
  font-size:clamp(26px,3.6vw,42px);line-height:1.22;letter-spacing:.3px;
  margin-bottom:20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand);font-size:12.5px}
.share-row{display:flex;align-items:center;gap:10px;margin-top:22px}
.share-label{font-size:13px;color:var(--text-3)}
.share-btn{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:all .22s ease;
}
.share-btn:hover{color:var(--brand);border-color:var(--line-hover);transform:translateY(-2px);box-shadow:var(--glow)}

/* ============ 正文布局 ============ */
.article-main{padding:48px 0 96px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,780px) 300px;
  gap:56px;justify-content:center;align-items:start;
}
.article-column{min-width:0}
.article-body{
  font-size:16px;line-height:1.95;color:var(--text-2);
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:1.2em 0}
.article-body > p:first-of-type{color:var(--text-1);font-weight:500}
.article-body h2{
  position:relative;padding-left:16px;margin:2.4em 0 1em;
  font-size:clamp(20px,2.3vw,26px);color:var(--text-1);line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 16px rgba(47,227,196,.4);
}
.article-body h3{
  display:flex;align-items:baseline;gap:10px;
  margin:1.9em 0 .8em;font-size:19px;color:var(--text-1);
}
.article-body h3::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);
  flex-shrink:0;transform:translateY(-2px);
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--brand);
  background:rgba(255,255,255,.04);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--text-1);
}
.article-body blockquote p{margin:.4em 0}
.article-body ul,.article-body ol{padding-left:1.5em;margin:1.2em 0}
.article-body ul li{list-style:disc;margin:.55em 0}
.article-body ol li{list-style:decimal;margin:.55em 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--accent);font-family:var(--mono);font-weight:600}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--shadow-card)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  border-radius:12px;overflow:hidden;border:1px solid var(--line);
}
.article-body th{
  background:rgba(47,227,196,.10);color:var(--text-1);font-weight:600;
  text-align:left;padding:12px 16px;
}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);color:var(--text-2)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-body code{
  font-family:var(--mono);font-size:14px;padding:2px 7px;border-radius:6px;
  background:rgba(122,92,255,.14);color:#B9A8FF;
}

/* ============ 侧栏 ============ */
.article-sidebar{position:sticky;top:110px;display:grid;gap:20px}
.sidebar-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:22px;backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.sidebar-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(47,227,196,.5),transparent 70%);
}
.sidebar-title{
  display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  color:var(--text-1);padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.sidebar-title i{color:var(--brand);font-size:13px}
.toc-list li{margin:2px 0}
.toc-list a{
  display:block;padding:7px 10px;font-size:13.8px;color:var(--text-2);border-radius:8px;
  border-left:2px solid transparent;line-height:1.6;
}
.toc-list a:hover{color:var(--brand);background:rgba(47,227,196,.07);border-left-color:var(--brand)}
.toc-list .toc-sub a{padding-left:22px;font-size:13.2px;color:var(--text-3)}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--text-2);border-bottom:1px dashed var(--line);
}
.side-link:last-child{border-bottom:0}
.side-link:hover{color:var(--brand)}
.side-link i{font-size:11px;color:var(--text-3)}
.side-link:hover i{color:var(--brand)}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:64px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-panel);background:var(--panel);
}
.empty-state i{font-size:34px;color:var(--text-3);margin-bottom:16px;display:block}
.empty-state p{color:var(--text-2);font-size:16px;margin-bottom:20px}

/* ============ 文末标签 + 作者 ============ */
.article-foot{margin-top:52px;padding-top:32px;border-top:1px solid var(--line)}
.foot-block{margin-bottom:34px}
.foot-label{
  font-size:13px;color:var(--text-3);margin-bottom:14px;letter-spacing:1px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  padding:7px 15px;border-radius:var(--radius-pill);font-size:13px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-2);
}
.chip:hover{border-color:var(--line-hover);color:var(--brand)}
.author-card{
  display:flex;gap:18px;align-items:center;
  background:linear-gradient(135deg,rgba(47,227,196,.08),rgba(122,92,255,.06));
  border:1px solid var(--line);border-radius:var(--radius-panel);padding:22px 24px;
  box-shadow:var(--shadow-card);
}
.author-avatar{
  width:54px;height:54px;border-radius:16px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#04231D;font-weight:800;font-size:22px;
}
.author-info h4{font-size:16px;margin-bottom:6px}
.author-info p{font-size:13.5px;color:var(--text-3);line-height:1.7}

/* ============ 上下篇 ============ */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px}
.post-nav-card{
  display:block;padding:20px 22px;border-radius:var(--radius-card);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-nav-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--glow)}
.post-nav-label{font-size:12px;color:var(--brand);letter-spacing:1px;font-weight:600}
.post-nav-card strong{display:block;color:var(--text-1);font-size:15.5px;margin:8px 0 6px}
.post-nav-card span{font-size:13px;color:var(--text-3)}

/* ============ 相关推荐 ============ */
.recommend{padding:0 0 96px}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);display:flex;align-items:center;gap:12px}
.section-head h2::before{
  content:"";width:4px;height:24px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));box-shadow:0 0 14px rgba(47,227,196,.45);
}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--text-3)}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;border-radius:var(--radius-card);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--glow)}
.rec-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(255,255,255,.04)}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rec-card:hover .rec-media img{transform:scale(1.05)}
.rec-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(6,10,20,.72));
}
.rec-body{padding:20px 22px 22px}
.rec-body h3{font-size:16.5px;line-height:1.5;margin-bottom:10px}
.rec-card:hover .rec-body h3{color:var(--brand)}
.rec-body p{font-size:13.5px;color:var(--text-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;font-size:12.5px;color:var(--text-3);
}
.rec-meta i{font-size:11px;color:var(--brand)}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-panel);
  border:1px solid rgba(47,227,196,.28);
  background:linear-gradient(120deg,rgba(47,227,196,.10),rgba(122,92,255,.08) 55%,rgba(255,184,77,.06));
  padding:52px 48px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  box-shadow:0 0 40px rgba(47,227,196,.12);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  animation:energy 4.5s linear infinite;
}
@keyframes energy{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-panel p{font-size:15px;color:var(--text-2);max-width:520px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;min-width:0;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:13px 16px;color:var(--text-1);font-size:14.5px;font-family:inherit;outline:0;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,227,196,.16)}
.cta-hint{margin-top:14px;font-size:12.5px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,10,20,.4),rgba(6,10,20,.95));
  padding:64px 0 28px;margin-top:0;position:relative;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:13.8px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14.5px;margin-bottom:18px;color:var(--text-1)}
.footer-col a{
  display:block;font-size:13.8px;color:var(--text-3);padding:6px 0;
}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-3);
  padding:6px 0;line-height:1.7;
}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:5px;flex-shrink:0}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding-top:24px;font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:1023px){
  .nav-search,.header-cta{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .header-nav{display:none}
  .drawer{display:block;overflow:hidden;max-height:0;transition:max-height .32s ease}
  .drawer.is-open{max-height:420px}
  .drawer-inner{
    padding:8px 24px 22px;display:grid;gap:6px;
    border-top:1px solid var(--line);
  }
  .drawer .nav-link{padding:13px 12px;border-radius:10px;font-size:15px}
  .drawer .nav-link.is-active{background:rgba(47,227,196,.08)}
  .drawer .nav-link.is-active::after{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-sidebar{position:static;order:-1;margin-bottom:32px;grid-template-columns:1fr}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .breadcrumb{padding:20px 18px 0}
  .article-main{padding:34px 0 64px}
  .article-hero{padding:20px 0 26px}
  .article-hero::after{left:18px;right:18px}
  .article-body{font-size:15.5px;line-height:1.9}
  .post-nav{grid-template-columns:1fr}
  .rec-grid{grid-template-columns:1fr}
  .recommend{padding-bottom:64px}
  .cta-panel{padding:34px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .author-card{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px}
  .article-meta{gap:8px 16px;font-size:13px}
  .cta-form input{flex:1 1 100%}
  .cta-form .btn{width:100%}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px 12px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --panel:rgba(255,255,255,.05);
  --panel-2:rgba(255,255,255,.03);
  --text-1:#E9EFFA;
  --text-2:#A7B3C8;
  --text-3:#6C7A93;
  --brand:#2FE3C4;
  --brand-deep:#17B79C;
  --accent:#FFB84D;
  --spark:#7A5CFF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(47,227,196,.45);
  --r-btn:12px;
  --r-card:16px;
  --r-panel:20px;
  --r-pill:999px;
  --shadow:0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 22px rgba(47,227,196,.18);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:linear-gradient(180deg,#060A14 0%,#0B1220 42%,#060A14 100%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,10,20,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.94);
  border-bottom-color:var(--line);
  box-shadow:0 8px 30px rgba(0,0,0,.5);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  letter-spacing:.4px;
  white-space:nowrap;
}
.brand-mark{
  width:36px;
  height:36px;
  flex:0 0 36px;
  border-radius:11px;
  display:grid;
  place-items:center;
  font-family:var(--mono);
  font-size:18px;
  font-weight:800;
  color:#04140F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 18px rgba(47,227,196,.35);
}
.brand-text{font-size:18px;color:var(--text-1)}
.header-actions{display:flex;align-items:center;gap:12px}
.header-search{
  display:flex;
  align-items:center;
  gap:9px;
  min-width:210px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .25s ease,background .25s ease;
}
.header-search:focus-within{border-color:var(--line-strong);background:rgba(255,255,255,.07)}
.header-search i{font-size:13px;color:var(--text-3)}
.header-search input{
  width:100%;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--text-1);
}
.header-search input::placeholder{color:var(--text-3)}

.header-nav{border-top:1px solid var(--line);background:rgba(11,18,32,.5)}
.nav-scroll{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
  mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;
  flex:0 0 auto;
  padding:13px 16px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:6px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(.5)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:6px;
  top:50%;
  width:5px;
  height:5px;
  margin-top:1px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px var(--brand);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text-1);
  cursor:pointer;
  place-items:center;
  transition:border-color .25s ease,background .25s ease;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(47,227,196,.1)}
.mobile-drawer{
  display:none;
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.mobile-drawer a{
  display:block;
  padding:14px 24px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--brand);background:rgba(47,227,196,.07)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04140F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 18px rgba(47,227,196,.22);
}
.btn-primary:hover{
  box-shadow:0 0 32px rgba(47,227,196,.42);
  filter:brightness(1.06);
}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  color:var(--text-1);
  background:transparent;
  border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(47,227,196,.08)}
.btn-ghost:active{transform:scale(.98)}
.btn-pill{border-radius:var(--r-pill)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.btn-text i{transition:transform .25s ease}
.btn-text:hover i{transform:translateX(3px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.3px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-2);
}
.tag-brand{color:var(--brand);background:rgba(47,227,196,.1);border-color:rgba(47,227,196,.3)}
.tag-accent{color:var(--accent);background:rgba(255,184,77,.1);border-color:rgba(255,184,77,.28)}
.tag-spark{color:#B3A4FF;background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.32)}

/* ============ 通用板块 ============ */
.section{position:relative;z-index:1;padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
  font-size:13px;
  letter-spacing:1.4px;
  color:var(--brand);
  font-family:var(--mono);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:linear-gradient(90deg,var(--brand),transparent);
}
.h2{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  padding-left:16px;
  border-left:4px solid var(--brand);
}
.section-lead{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.9}

/* ============ 分类 Hero ============ */
.page-hero{
  position:relative;
  z-index:1;
  padding:72px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.22;
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%);
  z-index:-1;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-140px;
  left:-80px;
  width:520px;
  height:420px;
  background:radial-gradient(circle,rgba(47,227,196,.16),transparent 68%);
  filter:blur(10px);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;
  margin-bottom:20px;
}
.hero-copy .hero-sub{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-media{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--glow);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  opacity:.92;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,0) 40%,rgba(6,10,20,.82) 100%);
}
.hero-media .media-cap{
  position:absolute;
  left:20px;
  right:20px;
  bottom:18px;
  z-index:2;
  font-size:14px;
  color:var(--text-2);
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-stats .stat{
  flex:1 1 180px;
  padding-right:28px;
  margin-right:28px;
  border-right:1px solid var(--line);
}
.hero-stats .stat:last-child{border-right:0;margin-right:0;padding-right:0}
.stat-num{
  font-family:var(--mono);
  font-size:clamp(26px,3vw,38px);
  font-weight:700;
  color:var(--brand);
  letter-spacing:-.5px;
  line-height:1.2;
}
.stat-num small{font-size:15px;color:var(--text-2);margin-left:4px;font-weight:500}
.stat-label{font-size:14px;color:var(--text-3);margin-top:2px}

/* ============ 频道标签条 ============ */
.channel-bar{position:relative;z-index:1;padding:22px 0;border-bottom:1px solid var(--line);background:rgba(11,18,32,.55)}
.channel-bar .container{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.channel-bar .bar-label{font-size:13px;color:var(--text-3);letter-spacing:1px;font-family:var(--mono)}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 18px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  background:var(--panel);
  border:1px solid var(--line);
  transition:color .22s ease,border-color .22s ease,background .22s ease,transform .22s ease;
}
.chip:hover{color:var(--text-1);border-color:var(--line-strong);transform:translateY(-1px)}
.chip.is-current{
  color:#04140F;
  font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-color:transparent;
  box-shadow:0 0 18px rgba(47,227,196,.25);
}

/* ============ 主体双栏 ============ */
.layout{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:44px;
  align-items:start;
  padding:72px 0 96px;
}
.toc{
  position:sticky;
  top:132px;
  padding:24px 22px;
  border-radius:var(--r-panel);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.toc::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:120px;
  height:120px;
  border-radius:var(--r-panel) 0 60% 0;
  background:radial-gradient(circle at 0 0,rgba(47,227,196,.16),transparent 70%);
  pointer-events:none;
}
.toc h3{
  position:relative;
  font-size:14px;
  letter-spacing:1.4px;
  color:var(--text-3);
  font-family:var(--mono);
  margin-bottom:16px;
  padding-left:12px;
  border-left:3px solid var(--brand);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease,transform .2s ease;
}
.toc-list a::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--text-3);
  transition:background .2s ease,box-shadow .2s ease;
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.05);transform:translateX(3px)}
.toc-list a.is-current{color:var(--brand);background:rgba(47,227,196,.09)}
.toc-list a.is-current::before{background:var(--brand);box-shadow:0 0 10px var(--brand)}
.toc-foot{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 条目分组 ============ */
.group{margin-bottom:56px;scroll-margin-top:132px}
.group:last-child{margin-bottom:0}
.group-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:22px}
.group-head h2{font-size:22px;padding-left:14px;border-left:4px solid var(--brand)}
.group-head span{font-size:14px;color:var(--text-3)}
.entry-list{display:flex;flex-direction:column;gap:14px}
.entry-card{
  display:grid;
  grid-template-columns:196px minmax(0,1fr);
  gap:22px;
  padding:18px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.entry-card:hover{
  transform:translateX(4px);
  border-color:var(--line-strong);
  background:rgba(255,255,255,.06);
  box-shadow:var(--shadow),0 0 22px rgba(47,227,196,.12);
}
.entry-media{
  position:relative;
  border-radius:12px;
  overflow:hidden;
  background:linear-gradient(135deg,#101A2C,#0B1220);
}
.entry-media img{
  width:100%;
  height:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  opacity:.88;
  transition:transform .4s ease,opacity .3s ease;
}
.entry-card:hover .entry-media img{transform:scale(1.05);opacity:1}
.entry-body{display:flex;flex-direction:column;justify-content:center;min-width:0}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px}
.entry-time{font-size:13px;color:var(--text-3);font-family:var(--mono)}
.entry-body h3{font-size:18px;margin-bottom:8px;color:var(--text-1)}
.entry-body p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.8;
  margin-bottom:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.entry-link i{transition:transform .25s ease}
.entry-card:hover .entry-link i{transform:translateX(4px)}

/* ============ 参数速查 ============ */
.spec-wrap{
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:var(--panel);
  overflow:hidden;
  box-shadow:var(--shadow);
  scroll-margin-top:132px;
}
.spec-head{
  padding:22px 24px;
  border-bottom:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.spec-head h2{font-size:20px}
.spec-head span{font-size:13.5px;color:var(--text-3)}
.table-scroll{overflow-x:auto}
.spec-table{width:100%;border-collapse:collapse;min-width:620px}
.spec-table th{
  text-align:left;
  padding:14px 24px;
  font-size:13px;
  letter-spacing:.8px;
  font-weight:600;
  color:var(--brand);
  background:rgba(47,227,196,.07);
  white-space:nowrap;
}
.spec-table td{
  padding:15px 24px;
  font-size:14.5px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  vertical-align:top;
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.spec-table tbody tr:hover{background:rgba(47,227,196,.05)}
.spec-table td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap}

/* ============ 适用场景 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  scroll-margin-top:132px;
}
.scene-card{
  padding:24px 22px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow),0 0 20px rgba(47,227,196,.14);
}
.scene-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  display:grid;
  place-items:center;
  margin-bottom:16px;
  color:var(--brand);
  background:rgba(47,227,196,.1);
  border:1px solid rgba(47,227,196,.26);
  font-size:17px;
}
.scene-card h3{font-size:16.5px;margin-bottom:8px}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;scroll-margin-top:132px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{background:rgba(255,255,255,.06);border-color:var(--line-strong)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:19px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  transition:color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  line-height:1;
  color:var(--brand);
  transition:transform .28s ease;
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:42px 44px;
  border-radius:var(--r-panel);
  border:1px solid var(--line-strong);
  background:linear-gradient(135deg,rgba(47,227,196,.12),rgba(122,92,255,.08) 70%,rgba(255,184,77,.06));
  box-shadow:var(--shadow),var(--glow);
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  background-size:220% 100%;
  animation:energy 4.5s linear infinite;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-90px;
  bottom:-120px;
  width:340px;
  height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,196,.15),transparent 70%);
  pointer-events:none;
}
@keyframes energy{
  0%{background-position:0 0}
  100%{background-position:220% 0}
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-copy p{font-size:15px;color:var(--text-2);line-height:1.9;margin:0}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:40px;
  padding:72px 0 28px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(6,10,20,.92));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.9;max-width:340px;margin:0}
.footer-col h4{
  font-size:14px;
  letter-spacing:1.2px;
  color:var(--text-1);
  margin-bottom:18px;
  padding-left:12px;
  border-left:3px solid var(--brand);
}
.footer-col a{
  display:block;
  padding:6px 0;
  font-size:14.5px;
  color:var(--text-2);
  transition:color .22s ease,transform .22s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:6px 0;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.75;
}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:620px}
  .layout{grid-template-columns:1fr;gap:36px;padding:56px 0 80px}
  .toc{position:static;top:auto}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .toc-list a{background:rgba(255,255,255,.04);border:1px solid var(--line)}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:860px){
  .nav-toggle{display:grid}
  .header-nav{display:none}
  .header-search{display:none}
  .mobile-drawer{display:block}
  .site-header.is-open .mobile-drawer{max-height:280px}
  .site-header.is-open .nav-toggle{border-color:var(--line-strong);background:rgba(47,227,196,.12)}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .page-hero{padding:52px 0 44px}
  .cta-panel{padding:32px 26px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .brand-text{font-size:16.5px}
  .hero-stats{flex-direction:column;gap:18px}
  .hero-stats .stat{
    border-right:0;
    border-bottom:1px solid var(--line);
    margin:0;
    padding:0 0 16px;
    flex:1 1 auto;
  }
  .hero-stats .stat:last-child{border-bottom:0;padding-bottom:0}
  .entry-card{grid-template-columns:1fr;gap:16px;padding:16px}
  .entry-media img{aspect-ratio:16/9}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .group-head h2{font-size:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1220;
  --bg-2:#101A2C;
  --panel:rgba(255,255,255,.05);
  --panel-strong:rgba(255,255,255,.09);
  --text-1:#E9EFFA;
  --text-2:#A7B3C8;
  --text-3:#6C7A93;
  --brand:#2FE3C4;
  --brand-deep:#17B79C;
  --accent:#FFB84D;
  --spark:#7A5CFF;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(47,227,196,.45);
  --r-btn:12px;
  --r-pill:999px;
  --r-card:16px;
  --r-panel:20px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06), 0 8px 30px rgba(0,0,0,.45);
  --glow-brand:0 0 22px rgba(47,227,196,.18);
  --glow-brand-lg:0 0 32px rgba(47,227,196,.28);
  --fs-h1:clamp(30px,4.6vw,54px);
  --fs-h2:clamp(24px,3vw,36px);
  --fs-h3:clamp(18px,1.6vw,22px);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 45%,var(--bg-0) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--brand)}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 通用区块 ---------- */
.section{padding:104px 0;position:relative;z-index:1}
.section--tight{padding:76px 0}
.section-head{max-width:760px;margin-bottom:52px}
.section-head h2{font-size:var(--fs-h2);margin-bottom:16px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;font-family:var(--font-num)}
.section-head p{color:var(--text-2);font-size:16.5px}
h2.bar-left{position:relative;padding-left:16px}
h2.bar-left::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--brand-deep))}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line) 20%,var(--line) 80%,transparent);border:0;margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#03130F;
  box-shadow:var(--glow-brand);
}
.btn-primary:hover{color:#03130F;box-shadow:var(--glow-brand-lg);filter:brightness(1.06)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(47,227,196,.07);color:var(--text-1)}
.btn-ghost:active{transform:scale(.98)}
.btn-pill{border-radius:var(--r-pill)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text i{transition:transform .22s ease}
.btn-text:hover i{transform:translateX(3px)}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(47,227,196,.12);
  color:var(--brand);
  border:1px solid rgba(47,227,196,.22);
}
.tag--gold{background:rgba(255,184,77,.12);color:var(--accent);border-color:rgba(255,184,77,.22)}
.tag--violet{background:rgba(122,92,255,.14);color:#B7A6FF;border-color:rgba(122,92,255,.26)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(6,10,20,.92),rgba(6,10,20,.62));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(8,13,24,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 34px rgba(0,0,0,.45);
}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--text-1);font-weight:700;font-size:18px;letter-spacing:.01em}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:18px;color:#03130F;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow-brand);
}
.brand-sub{display:block;font-size:11.5px;color:var(--text-3);font-weight:400;letter-spacing:.16em;margin-top:2px;font-family:var(--font-num)}
.header-tools{display:flex;align-items:center;gap:14px}
.header-search{
  display:flex;align-items:center;gap:9px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:9px 16px;min-width:200px;
  transition:border-color .25s ease,background .25s ease;
}
.header-search i{color:var(--text-3);font-size:13px}
.header-search input{background:transparent;border:0;outline:none;color:var(--text-1);font-size:14px;width:100%}
.header-search input::placeholder{color:var(--text-3)}
.header-search:focus-within{border-color:var(--line-hover);background:rgba(47,227,196,.06)}
.header-cta{padding:11px 22px;font-size:14.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--panel);color:var(--text-1);
  font-size:17px;place-items:center;
}
.header-nav{border-top:1px solid var(--line)}
.nav-scroll{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding-top:2px;padding-bottom:2px;
}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:13px 16px;font-size:15px;font-weight:500;color:var(--text-2);
  white-space:nowrap;border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-deep));
  transform:scaleX(0);transform-origin:center;transition:transform .28s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.035)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(47,227,196,.55)}
.nav-drawer{display:none}

/* ---------- Hero（宽幅） ---------- */
.hero-wide{
  position:relative;overflow:hidden;
  min-height:520px;display:flex;align-items:flex-end;
  padding:120px 0 0;
}
.hero-wide__bg{position:absolute;inset:0;z-index:0}
.hero-wide__bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-wide__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.86) 0%,rgba(6,10,20,.55) 34%,rgba(11,18,32,.94) 78%,var(--bg-1) 100%);
}
.hero-wide__glow{
  position:absolute;left:-8%;top:-18%;width:640px;height:640px;z-index:0;
  background:radial-gradient(circle,rgba(47,227,196,.20) 0%,transparent 66%);
  pointer-events:none;
}
.hero-wide__inner{position:relative;z-index:2;width:100%;padding-bottom:96px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.hero-wide h1{font-size:var(--fs-h1);max-width:900px;margin-bottom:22px}
.hero-wide h1 em{font-style:normal;color:var(--brand);text-shadow:0 0 30px rgba(47,227,196,.35)}
.hero-lead{max-width:660px;color:var(--text-2);font-size:17.5px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 悬浮分类标签带 */
.float-chips{
  position:relative;z-index:5;margin-top:-38px;
}
.float-chips__inner{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:rgba(16,26,44,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:14px 18px;
  box-shadow:var(--shadow-card);
}
.float-chips__label{font-size:13px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.12em;margin-right:6px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 17px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-2);
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  transition:all .25s ease;
}
.chip:hover{color:var(--text-1);border-color:var(--line-hover);background:rgba(47,227,196,.08)}
.chip.is-active{
  color:#03130F;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-color:transparent;box-shadow:var(--glow-brand);
}

/* ---------- 卡片墙（三栏不等宽） ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.wall-card{
  position:relative;grid-column:span 4;
  background:linear-gradient(180deg,rgba(255,255,255,.062),rgba(255,255,255,.022));
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.wall-card::before{
  content:"";position:absolute;left:0;top:0;width:160px;height:160px;pointer-events:none;
  background:radial-gradient(circle at 0 0,rgba(47,227,196,.16),transparent 70%);
}
.wall-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--shadow-card),var(--glow-brand)}
.wall-card h3{font-size:var(--fs-h3);margin-bottom:12px;position:relative}
.wall-card p{color:var(--text-2);font-size:14.8px;position:relative}
.wall-card--hero{grid-column:span 6;display:flex;flex-direction:column;gap:20px;padding:0}
.wall-card--hero .cover{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;aspect-ratio:16/8}
.wall-card--hero .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.wall-card--hero:hover .cover img{transform:scale(1.04)}
.wall-card--hero .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,10,20,.88))}
.wall-card--hero .body{padding:0 28px 28px}
.wall-card--sm{grid-column:span 3}
.wall-card--sm .icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(47,227,196,.12);color:var(--brand);font-size:17px;
  border:1px solid rgba(47,227,196,.24);
}
.wall-card--sm.gold .icon{background:rgba(255,184,77,.12);color:var(--accent);border-color:rgba(255,184,77,.24)}
.wall-card .meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.point-list{margin-top:16px;display:grid;gap:9px}
.point-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.point-list li i{color:var(--brand);font-size:12px;margin-top:7px}

/* ---------- 步骤流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{
  position:relative;padding:28px 22px 26px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);
  transition:border-color .3s ease,transform .3s ease;
}
.step:hover{border-color:var(--line-hover);transform:translateY(-2px)}
.step__num{
  font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--brand);
  opacity:.9;line-height:1;margin-bottom:16px;display:block;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--text-2)}
.step:not(:last-child)::after{
  content:"";position:absolute;right:-16px;top:52px;width:26px;height:2px;
  background:linear-gradient(90deg,var(--brand),rgba(47,227,196,.08));
  border-radius:2px;
}

/* ---------- 数据指标条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;
}
.stat{padding:34px 26px;border-right:1px solid var(--line);transition:background .3s ease}
.stat:last-child{border-right:0}
.stat:hover{background:rgba(47,227,196,.05)}
.stat__num{font-family:var(--font-num);font-size:clamp(30px,3.4vw,44px);font-weight:700;color:var(--text-1);line-height:1.1}
.stat__num span{font-size:.5em;color:var(--brand);margin-left:4px}
.stat__label{margin-top:10px;font-size:14px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:360px 1fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:132px}
.faq-side h2{font-size:var(--fs-h2);margin-bottom:16px}
.faq-side p{color:var(--text-2);font-size:15.5px;margin-bottom:22px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .25s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q .plus{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;
  border:1px solid var(--line);color:var(--brand);
  transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);border-color:var(--line-hover);background:rgba(47,227,196,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a__inner{padding:0 4px 24px;color:var(--text-2);font-size:15.3px;line-height:1.85}
.faq-item.is-open{background:rgba(255,255,255,.028);border-radius:12px}

/* ---------- 互链卡 ---------- */
.cross-link{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  padding:30px;border-radius:var(--r-panel);
  background:linear-gradient(120deg,rgba(122,92,255,.12),rgba(47,227,196,.07) 60%,transparent);
  border:1px solid var(--line);
  transition:border-color .3s ease,transform .3s ease;
}
.cross-link:hover{border-color:var(--line-hover);transform:translateY(-2px);color:inherit}
.cross-link__thumb{width:118px;height:78px;border-radius:12px;overflow:hidden;flex:0 0 auto;border:1px solid var(--line)}
.cross-link__thumb img{width:100%;height:100%;object-fit:cover}
.cross-link__body{flex:1 1 260px}
.cross-link__body h3{font-size:20px;margin-bottom:8px}
.cross-link__body p{color:var(--text-2);font-size:14.8px}
.cross-link__go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:8px}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(47,227,196,.13),rgba(11,18,32,.9) 55%,rgba(122,92,255,.12));
  padding:56px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  animation:energy 4.5s linear infinite;
  background-size:200% 100%;
}
@keyframes energy{0%{background-position:0% 0}100%{background-position:200% 0}}
.cta-panel h2{font-size:var(--fs-h2);margin-bottom:14px}
.cta-panel p{color:var(--text-2);font-size:16px}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 210px;min-width:0;
  padding:14px 18px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.sub-form input::placeholder{color:var(--text-3)}
.sub-form input:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,227,196,.18)}
.form-hint{margin-top:14px;font-size:13px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,24,.6),rgba(6,10,20,.98));
  padding-top:72px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-3);font-size:14.5px;max-width:330px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1);position:relative;padding-left:12px}
.footer-col h4::before{content:"";position:absolute;left:0;top:.25em;bottom:.25em;width:3px;border-radius:3px;background:var(--brand)}
.footer-col a{display:block;font-size:14.5px;color:var(--text-3);padding:6px 0}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-contact li{display:flex;gap:11px;font-size:14.5px;color:var(--text-3);padding:6px 0;line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:24px 0 32px;font-size:13.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:76px 0}
  .header-search{display:none}
  .nav-toggle{display:grid}
  .header-nav{display:none}
  .nav-drawer{
    display:block;max-height:0;overflow:hidden;
    border-top:1px solid transparent;
    transition:max-height .38s ease,border-color .3s ease;
    background:rgba(8,13,24,.98);
  }
  .nav-drawer.is-open{max-height:340px;border-top-color:var(--line)}
  .nav-drawer__inner{display:flex;flex-direction:column;padding:12px 0 20px}
  .nav-drawer .nav-link{padding:14px 4px;border-radius:8px}
  .nav-drawer .nav-link::after{left:4px;right:auto;width:34px}
  .wall-card,.wall-card--hero{grid-column:span 6}
  .wall-card--sm{grid-column:span 6}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:not(:last-child)::after{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .cta-panel{grid-template-columns:1fr;padding:42px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-wide{padding-top:88px;min-height:auto}
  .hero-wide__inner{padding-bottom:78px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .header-top{padding:13px 0}
  .brand{font-size:16.5px}
  .header-cta{display:none}
  .hero-wide h1{font-size:clamp(26px,7vw,34px)}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%;justify-content:center}
  .float-chips{margin-top:-26px}
  .float-chips__inner{padding:12px 14px}
  .float-chips__label{width:100%;margin-bottom:2px}
  .wall{grid-template-columns:1fr}
  .wall-card,.wall-card--hero,.wall-card--sm{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .cta-panel{padding:32px 22px}
  .sub-form input{flex:1 1 100%}
  .sub-form .btn{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .cross-link{padding:22px}
  .cross-link__thumb{width:100%;height:150px}
}