/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#101829;
  --bg-panel:#0D1424;
  --light-0:#F2F5F9;
  --light-1:#F7F9FC;
  --light-line:#E2E8F0;
  --accent:#4FE0D8;
  --accent-deep:#2BB8B1;
  --accent-soft:rgba(79,224,216,0.12);
  --accent-line:rgba(79,224,216,0.45);
  --gold:#E9C07A;
  --gold-soft:rgba(233,192,122,0.14);
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A94;
  --ink:#101829;
  --ink-mid:#4A566B;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --ok:#57D6A2;
  --err:#FF7A7A;
  --glass-a:rgba(255,255,255,0.07);
  --glass-b:rgba(255,255,255,0.02);
  --shadow-deep:0 24px 60px rgba(0,0,0,0.55);
  --shadow-light:0 12px 32px rgba(16,24,41,0.10);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-xs:10px;
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--text-hi);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:600;letter-spacing:-0.01em;line-height:1.28;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
::selection{background:rgba(79,224,216,0.28);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:72px;
  background:rgba(5,7,15,0.28);
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,0.72);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
}
.nav-inner{height:72px;display:flex;align-items:center;gap:32px;}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0;}
.brand-mark{
  font-size:17px;font-weight:700;letter-spacing:-0.01em;color:var(--text-hi);
  white-space:nowrap;
}
.brand-mark em{font-style:normal;color:var(--accent);}
.brand-sub{
  font-size:12px;color:var(--text-low);letter-spacing:0.04em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-link{
  position:relative;font-size:14px;letter-spacing:0.02em;color:var(--text-mid);
  padding:6px 0;transition:color .2s ease-out;min-height:32px;display:inline-flex;align-items:center;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-hi);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-size:14px;letter-spacing:0.02em;
  padding:0 20px;height:44px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  color:#04211F;font-weight:600;
  box-shadow:0 0 0 1px var(--accent-line),0 10px 30px rgba(79,224,216,0.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px var(--accent-line),0 12px 34px rgba(79,224,216,0.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px var(--accent-line),0 6px 16px rgba(79,224,216,0.16);}
.btn-ghost{
  border:1px solid var(--line-strong);color:var(--text-hi);background:rgba(255,255,255,0.02);
}
.btn-ghost:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:10px;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-hi);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text-hi);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* mobile drawer */
.drawer{
  position:fixed;inset:72px 0 0 0;z-index:110;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:24px;
  display:none;
  overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:19px;color:var(--text-hi);
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link span{font-size:13px;color:var(--text-low);}
.drawer-cta{margin-top:28px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 96px;
  background:var(--bg-0);
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.75;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:rgba(5,7,15,0.78);
}
.hero-stars{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 14% 22%, rgba(242,246,255,.75), transparent 60%),
    radial-gradient(1.2px 1.2px at 32% 68%, rgba(79,224,216,.65), transparent 60%),
    radial-gradient(1.6px 1.6px at 58% 18%, rgba(242,246,255,.55), transparent 60%),
    radial-gradient(1.2px 1.2px at 74% 52%, rgba(233,192,122,.55), transparent 60%),
    radial-gradient(1.4px 1.4px at 88% 30%, rgba(242,246,255,.6), transparent 60%),
    radial-gradient(1.1px 1.1px at 46% 86%, rgba(79,224,216,.45), transparent 60%),
    radial-gradient(1.2px 1.2px at 8% 74%, rgba(242,246,255,.45), transparent 60%),
    radial-gradient(1.1px 1.1px at 92% 82%, rgba(242,246,255,.4), transparent 60%);
  opacity:.85;
}
.hero-inner{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start;}
.hero-copy{animation:riseIn .6s ease-out both;}
@keyframes riseIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:var(--accent-soft);border:1px solid var(--accent-line);
  color:var(--accent);font-size:12.5px;letter-spacing:0.06em;
}
.badge-pill i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.hero h1{
  margin-top:22px;
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.22;font-weight:700;letter-spacing:-0.01em;
  color:var(--text-hi);
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-mid);max-width:520px;
}
.hero-actions{display:flex;align-items:center;gap:24px;margin-top:34px;flex-wrap:wrap;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--text-mid);min-height:44px;
  border-bottom:1px solid transparent;transition:color .2s ease-out,border-color .2s ease-out;
}
.link-arrow b{font-weight:400;transition:transform .2s ease-out;}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent-line);}
.link-arrow:hover b{transform:translateX(4px);}
.hero-metrics{
  display:flex;gap:0;margin-top:44px;border-top:1px solid var(--line);padding-top:22px;flex-wrap:wrap;
}
.hero-metrics li{
  display:flex;flex-direction:column;gap:2px;padding-right:26px;margin-right:26px;
  border-right:1px solid var(--line);
}
.hero-metrics li:last-child{border-right:none;margin-right:0;padding-right:0;}
.hero-metrics b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:20px;color:var(--text-hi);font-weight:500;}
.hero-metrics span{font-size:12.5px;color:var(--text-low);letter-spacing:0.04em;}

/* glass panel */
.panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,0.08);
  padding:28px;
}
.login-panel{animation:riseIn .7s ease-out both;}
.login-panel h2{font-size:16px;font-weight:600;color:var(--text-hi);}
.login-panel p.hint{margin-top:8px;font-size:13px;color:var(--text-low);line-height:1.7;}
.field{margin-top:18px;}
.field label{display:block;font-size:12.5px;color:var(--text-mid);letter-spacing:0.04em;margin-bottom:8px;}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-xs);
  background:#0A1020;border:1px solid var(--line-strong);color:var(--text-hi);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input::placeholder{color:#54627A;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,224,216,0.18);
}
.login-panel .btn{margin-top:22px;}
.login-links{display:flex;align-items:center;justify-content:space-between;margin-top:16px;gap:12px;flex-wrap:wrap;}
.login-links a{font-size:12.5px;color:var(--text-mid);border-bottom:1px solid transparent;transition:color .2s ease-out,border-color .2s ease-out;}
.login-links a:hover{color:var(--accent);border-bottom-color:var(--accent-line);}
.privacy-note{margin-top:14px;font-size:12px;color:var(--text-low);line-height:1.7;}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.section-title{font-size:34px;line-height:1.3;font-weight:600;}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-mid);max-width:640px;line-height:1.85;}
.eyebrow{font-size:12.5px;letter-spacing:0.14em;color:var(--accent);text-transform:uppercase;margin-bottom:14px;font-family:var(--font-mono);}
.divider{height:1px;background:var(--line);border:none;margin:0;}

/* B2 questions */
.questions{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.q-list li{padding:22px 0;border-bottom:1px solid var(--line);}
.q-list li:first-child{padding-top:0;}
.q-list h3{font-size:16px;color:var(--text-hi);font-weight:600;display:flex;gap:12px;align-items:flex-start;}
.q-list h3 em{font-style:normal;font-family:var(--font-mono);font-size:13px;color:var(--accent);line-height:1.9;flex-shrink:0;}
.q-list p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--text-mid);padding-left:32px;}

/* B3 solutions */
.solution-top{display:grid;grid-template-columns:6fr 3fr 3fr;gap:24px;}
.solution-bottom{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px;}
.sol-card{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--bg-1);padding:26px;display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.sol-card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--bg-2);}
.sol-card h3{font-size:19px;font-weight:600;color:var(--text-hi);}
.sol-card p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--text-mid);}
.sol-card .link-arrow{margin-top:auto;padding-top:18px;font-size:13.5px;}
.sol-card--lead{overflow:hidden;}
.sol-card--lead .cover{
  margin:-26px -26px 22px;border-radius:0;overflow:hidden;
}
.sol-card--lead .cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out;}
.sol-card--lead:hover .cover img{transform:scale(1.03);}
.corner-tag{
  position:absolute;top:16px;right:16px;z-index:3;
  font-size:11.5px;letter-spacing:0.08em;color:var(--gold);
  border:1px solid rgba(233,192,122,0.5);border-radius:999px;
  padding:4px 12px;background:rgba(5,7,15,0.6);
}
.icon-slot{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--accent);
  margin-bottom:18px;font-size:13px;font-family:var(--font-mono);
}
.icon-slot.gold{background:var(--gold-soft);border-color:rgba(233,192,122,0.45);color:var(--gold);}

/* B4 stats */
.stats-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-1);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat{
  padding:52px 32px;border-right:1px solid var(--line);
}
.stat:last-child{border-right:none;}
.stat-value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4vw,50px);line-height:1.1;color:var(--gold);font-weight:500;
  display:flex;align-items:baseline;gap:6px;
}
.stat-value small{font-size:14px;color:var(--text-mid);font-family:var(--font-sans);}
.stat-label{margin-top:12px;font-size:13.5px;color:var(--text-mid);line-height:1.7;}
.stats-foot{
  padding:16px 0 20px;font-size:12px;color:var(--text-low);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.track-line{flex:1;height:1px;background:linear-gradient(90deg,rgba(79,224,216,0.35),rgba(233,192,122,0.18),transparent);min-width:80px;}

/* B5 news light band */
.band-light{background:var(--light-0);color:var(--ink);padding:96px 0;}
.band-light .section-title{color:var(--ink);}
.band-light .section-desc{color:var(--ink-mid);}
.band-light .eyebrow{color:var(--accent-deep);}
.band-light .divider{background:var(--light-line);}
.light-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:22px;border-bottom:1px solid var(--light-line);}
.light-head .link-arrow{color:var(--ink-mid);}
.light-head .link-arrow:hover{color:var(--accent-deep);border-bottom-color:var(--accent-deep);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--light-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-light);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(43,184,177,0.4);box-shadow:0 18px 40px rgba(16,24,41,0.14);}
.news-card:hover .news-title{color:var(--accent-deep);}
.news-thumb{overflow:hidden;background:var(--light-1);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.news-tag{
  align-self:flex-start;font-size:12px;letter-spacing:0.04em;
  color:var(--accent-deep);background:var(--accent-soft);
  border-radius:999px;padding:4px 12px;border:1px solid rgba(43,184,177,0.22);
}
.news-title{
  margin-top:14px;font-size:17px;line-height:1.55;color:var(--ink);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease-out;
}
.news-desc{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--light-line);
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px;color:#7A879C;
}
.news-empty{
  margin-top:36px;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;background:#fff;border:1px dashed var(--light-line);border-radius:var(--r-lg);
  color:var(--ink-mid);font-size:14px;padding:32px;
}
.news-empty svg{width:40px;height:40px;color:#9AA7BC;}
.news-empty .btn-ghost{border-color:#CFD8E5;color:var(--ink);background:#fff;}
.news-empty .btn-ghost:hover{border-color:var(--accent-deep);color:var(--accent-deep);background:var(--accent-soft);}

/* B6 FAQ */
.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:24px;
  text-align:left;padding:24px 0;font-size:16px;color:var(--text-hi);font-weight:600;
  transition:color .2s ease-out;min-height:56px;
}
.faq-q:hover{color:var(--accent);}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px;}
.faq-icon::after{left:8px;top:0;width:1.5px;height:18px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .25s ease-out;
}
.faq-a p{padding:0 0 26px;font-size:14px;line-height:1.9;color:var(--text-mid);max-width:820px;}

/* B7 CTA */
.cta-wrap{padding:96px 0;}
.cta-panel{
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,0.08);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-panel h2{font-size:28px;line-height:1.4;color:var(--text-hi);max-width:620px;}
.cta-panel p{margin-top:14px;font-size:14.5px;color:var(--text-mid);max-width:560px;line-height:1.85;}
.cta-foot{margin-top:22px;font-size:12px;color:var(--text-low);}
.cta-foot a{color:var(--text-mid);border-bottom:1px solid var(--line-strong);transition:color .2s ease-out,border-color .2s ease-out;}
.cta-foot a:hover{color:var(--accent);border-bottom-color:var(--accent-line);}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;}
.footer-brand .brand-mark{font-size:18px;}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--text-mid);line-height:1.85;max-width:280px;}
.footer-brand .kw{margin-top:14px;font-size:12px;color:var(--text-low);letter-spacing:0.06em;}
.footer-col h4{font-size:13px;color:var(--text-hi);letter-spacing:0.1em;font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:13.5px;color:var(--text-mid);transition:color .2s ease-out;}
.footer-col a:hover{color:var(--accent);}
.footer-legal{font-size:13px;color:var(--text-mid);line-height:1.9;}
.footer-legal strong{display:block;color:var(--text-hi);font-size:13.5px;margin-bottom:10px;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;flex-wrap:wrap;
  font-size:12px;color:var(--text-low);
}

/* ---------- Modal ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(5,7,15,0.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.modal.is-open{display:flex;}
.modal-panel{
  position:relative;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;
  border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b)),var(--bg-panel);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,0.08);
  padding:32px;
}
.modal-panel h3{font-size:20px;color:var(--text-hi);}
.modal-panel .hint{margin-top:10px;font-size:13px;color:var(--text-low);line-height:1.75;}
.modal-close{
  position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--text-mid);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out;
}
.modal-close:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft);}
.chip-group{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px;}
.chip{
  border:1px solid var(--line-strong);border-radius:999px;padding:8px 16px;font-size:13px;
  color:var(--text-mid);transition:all .2s ease-out;min-height:38px;
}
.chip:hover{border-color:var(--accent-line);color:var(--accent);}
.chip.is-checked{background:var(--accent);border-color:var(--accent);color:#04211F;font-weight:600;}
.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-xs);resize:vertical;min-height:104px;
  background:#0A1020;border:1px solid var(--line-strong);color:var(--text-hi);line-height:1.7;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea::placeholder{color:#54627A;}
.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,224,216,0.18);}
.checkline{display:flex;align-items:flex-start;gap:10px;margin-top:18px;font-size:12px;color:var(--text-low);line-height:1.7;}
.checkline input{margin-top:3px;width:15px;height:15px;accent-color:var(--accent);}
.modal-panel .btn-primary{margin-top:20px;}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .hero-grid{gap:40px;}
}
@media (max-width:1024px){
  .hero{padding:130px 0 76px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .questions{grid-template-columns:1fr;gap:32px;}
  .solution-top{grid-template-columns:1fr 1fr;}
  .solution-top .sol-card--lead{grid-column:1 / -1;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat{border-right:none;border-bottom:1px solid var(--line);padding:36px 24px;}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .news-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .section,.band-light,.cta-wrap{padding:72px 0;}
  .nav-links{gap:22px;}
  .brand-sub{display:none;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-ghost{display:none;}
  .hero{padding:112px 0 60px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:18px 0;}
  .hero-metrics li{padding-right:18px;margin-right:18px;}
  .section,.band-light,.cta-wrap{padding:52px 0;}
  .section-title{font-size:24px;}
  .solution-top,.solution-bottom,.news-grid,.footer-grid{grid-template-columns:1fr;}
  .solution-bottom{margin-top:24px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat{padding:28px 18px;}
  .cta-panel{padding:28px;}
  .cta-panel h2{font-size:22px;}
  .panel{padding:22px;}
  .q-list p{padding-left:0;}
  .modal-panel{padding:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .hero h1{font-size:26px;}
  .hero-metrics li{flex:1 1 100%;border-right:none;margin-right:0;padding-right:0;padding-bottom:12px;border-bottom:1px solid var(--line);}
  .hero-metrics li:last-child{border-bottom:none;}
  .btn{width:100%;}
  .nav-actions{width:auto;}
  .stat-value{font-size:34px;}
  .news-body{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#101829;
  --bg-panel:#0D1424;
  --light-0:#F2F5F9;
  --light-1:#F7F9FC;
  --light-line:#E2E8F0;
  --accent:#4FE0D8;
  --accent-deep:#2BB8B1;
  --accent-soft:rgba(79,224,216,0.12);
  --accent-line:rgba(79,224,216,0.45);
  --gold:#E9C07A;
  --gold-soft:rgba(233,192,122,0.14);
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A94;
  --ink:#101829;
  --ink-mid:#4A566B;
  --line:rgba(255,255,255,0.08);
  --line-strong:rgba(255,255,255,0.16);
  --ok:#57D6A2;
  --warn:#E9C07A;
  --err:#FF7A7A;
  --glass-a:rgba(255,255,255,0.07);
  --glass-b:rgba(255,255,255,0.02);
  --shadow-deep:0 24px 60px rgba(0,0,0,.55);
  --shadow-light:0 12px 32px rgba(16,24,41,.10);
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --mono:'JetBrains Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-hi);
  font-family:'Noto Sans SC','HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button{font:inherit;color:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  height:72px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background:rgba(5,7,15,.55);
  transition:background .25s ease-out,backdrop-filter .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.78);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0}
.brand-mark{font-size:19px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap}
.brand-mark em{font-style:normal;color:var(--accent)}
.brand-sub{font-size:12px;color:var(--text-low);letter-spacing:.06em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:auto;margin-right:8px}
.nav-link{
  position:relative;font-size:14px;letter-spacing:.02em;color:var(--text-mid);
  padding:6px 0;white-space:nowrap;transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-cta{
  height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line-strong);background:transparent;
  color:var(--text-hi);font-size:14px;letter-spacing:.02em;
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out;
}
.nav-cta:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-hi);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-drawer{
  position:fixed;inset:72px 0 0 0;z-index:75;
  background:var(--bg-1);
  padding:28px 24px 40px;display:none;flex-direction:column;
  border-top:1px solid var(--line);
}
.nav-drawer.is-open{display:flex}
.nav-drawer a{
  font-size:19px;font-weight:600;padding:18px 0;
  border-bottom:1px solid var(--line);color:var(--text-hi);
}
.nav-drawer a:hover{color:var(--accent)}
.nav-drawer .btn{margin-top:28px}

/* ============ 通用按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:all .2s ease-out;text-align:center;
}
.btn-primary{
  background:linear-gradient(180deg,#5FE9E1,#2BB8B1);
  color:#04211F;
  box-shadow:0 0 0 1px var(--accent-line),0 10px 30px rgba(79,224,216,.22);
}
.btn-primary:hover{box-shadow:0 0 0 1px var(--accent-line),0 14px 34px rgba(79,224,216,.34);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px var(--accent-line),0 6px 16px rgba(79,224,216,.16)}
.btn-ghost{
  border-color:var(--line-strong);background:transparent;color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);
  transition:gap .2s ease-out,color .2s ease-out;
}
.link-arrow:hover{gap:10px;color:#7BEDE6}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;letter-spacing:.04em;
  background:var(--accent-soft);color:var(--accent);
  border:1px solid rgba(79,224,216,.24);
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--text-low)}
.breadcrumb a{color:var(--text-low)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .current{color:var(--text-mid)}
.breadcrumb span{color:var(--text-low);opacity:.6}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;padding:26px 0 0;
  background:
    radial-gradient(900px 420px at 78% -10%,rgba(79,224,216,.10),transparent 62%),
    radial-gradient(700px 360px at 8% 0%,rgba(233,192,122,.07),transparent 60%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(255,255,255,.55),transparent),
    radial-gradient(1.2px 1.2px at 34% 64%,rgba(255,255,255,.35),transparent),
    radial-gradient(1.6px 1.6px at 62% 18%,rgba(255,255,255,.45),transparent),
    radial-gradient(1.1px 1.1px at 82% 48%,rgba(255,255,255,.35),transparent),
    radial-gradient(1.3px 1.3px at 92% 76%,rgba(255,255,255,.3),transparent),
    radial-gradient(1.2px 1.2px at 48% 88%,rgba(255,255,255,.28),transparent);
  opacity:.75;
}
.article-hero .container{position:relative;z-index:1}
.article-hero-head{max-width:880px;padding:30px 0 0}
.article-hero-head h1{
  font-size:clamp(28px,3.6vw,42px);line-height:1.28;margin:16px 0 18px;
  letter-spacing:-0.01em;
}
.meta-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}
.meta-row time,.meta-row .num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}
.hero-figure{
  margin:34px 0 0;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-deep);
  aspect-ratio:21/9;background:var(--bg-1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ============ 正文区 ============ */
.article-main{padding:56px 0 0}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:44px;align-items:start}
.article-card{
  background:var(--light-1);color:var(--ink);
  border-radius:var(--radius);padding:clamp(24px,4vw,52px);
  box-shadow:var(--shadow-light);
  max-width:860px;
}
.article-body{font-size:16px;line-height:1.95;color:var(--ink)}
.article-body p{margin:0 0 1.1em}
.article-body p:last-child{margin-bottom:0}
.article-body h2{
  font-size:23px;line-height:1.45;margin:2.2em 0 .8em;
  padding-left:14px;border-left:3px solid var(--accent-deep);
  color:var(--ink);font-weight:700;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:1.7em 0 .6em;color:var(--ink);font-weight:700}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.35em;line-height:1.9}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.35em}
.article-body li::marker{color:var(--accent-deep)}
.article-body blockquote{
  margin:1.5em 0;padding:15px 20px;
  border-left:3px solid var(--accent-deep);
  background:var(--light-0);border-radius:0 12px 12px 0;
  color:var(--ink-mid);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:14px;margin:1.5em 0;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--ink-mid);text-align:center;margin-top:9px;line-height:1.7}
.article-body a{color:var(--accent-deep);border-bottom:1px solid rgba(43,184,177,.35)}
.article-body a:hover{border-bottom-color:var(--accent-deep)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th{
  background:var(--bg-2);color:var(--text-hi);font-weight:600;
  padding:12px 16px;border:1px solid var(--light-line);text-align:left;
}
.article-body td{padding:12px 16px;border:1px solid var(--light-line);color:var(--ink-mid);white-space:normal}
.article-body code{
  font-family:var(--mono);font-size:14px;
  background:var(--bg-2);color:var(--accent);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:var(--bg-2);color:#D9E4F5;
  padding:18px 20px;border-radius:12px;overflow-x:auto;
  margin:1.5em 0;font-size:14px;line-height:1.8;
}
.article-body pre code{background:none;color:inherit;padding:0;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--light-line);margin:2em 0}

.article-empty{padding:24px 0 8px;text-align:center}
.article-empty h2{font-size:22px;color:var(--ink);margin-bottom:12px}
.article-empty p{font-size:15px;color:var(--ink-mid);max-width:420px;margin:0 auto 24px;line-height:1.9}
.article-empty .btn{background:var(--bg-2);color:var(--text-hi);border-color:var(--bg-2)}
.article-empty .btn:hover{color:var(--accent)}

/* 标签 + 相关推荐 */
.article-foot{margin-top:36px}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px solid var(--line)}
.tag-label{font-size:13px;color:var(--text-low);letter-spacing:.06em}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line-strong);
  font-size:13px;color:var(--text-mid);
  transition:all .2s ease-out;
}
.tag:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft)}
.related-block{padding:32px 0 0}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}
.related-head h2{font-size:20px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.related-card{
  display:flex;flex-direction:column;gap:10px;
  padding:18px 18px 20px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--bg-panel);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.related-card:hover{transform:translateY(-2px);border-color:var(--accent-line);background:var(--bg-2)}
.related-card strong{font-size:15px;line-height:1.6;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover strong{color:var(--accent)}
.related-card time{font-family:var(--mono);font-size:12px;color:var(--text-low);font-variant-numeric:tabular-nums}
.back-link{margin-top:26px}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:96px}
.aside-block{border-left:1px solid var(--line);padding-left:22px}
.aside-block h3{font-size:13px;letter-spacing:.14em;color:var(--text-low);font-weight:600;margin-bottom:14px}
.toc-list li + li{margin-top:2px}
.toc-link{
  display:block;font-size:14px;color:var(--text-mid);
  padding:7px 0 7px 14px;border-left:2px solid transparent;
  margin-left:-23px;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.toc-link:hover{color:var(--text-hi)}
.toc-link.is-active{color:var(--accent);border-left-color:var(--accent)}
.aside-cta{
  margin-top:28px;padding:22px 20px;border-radius:var(--radius-sm);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.aside-cta strong{display:block;font-size:15px;line-height:1.6;margin-bottom:8px}
.aside-cta p{font-size:13px;color:var(--text-low);line-height:1.8;margin-bottom:16px}
.aside-cta .btn{height:42px;font-size:14px;padding:0 16px}
@supports not (backdrop-filter: blur(4px)){
  .aside-cta{background:var(--bg-panel)}
}

/* ============ 转化面板 ============ */
.cta-band{padding:88px 0}
.cta-panel{
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;
  padding:clamp(26px,4vw,44px);
  border-radius:var(--radius);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-deep);
}
@supports not (backdrop-filter: blur(4px)){
  .cta-panel{background:var(--bg-panel)}
}
.cta-panel h2{font-size:clamp(22px,2.6vw,28px);line-height:1.45;margin-bottom:10px}
.cta-panel p{font-size:14px;color:var(--text-mid);max-width:640px}
.cta-note{margin-top:16px;font-size:12px;color:var(--text-low)}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-0);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-mark{display:inline-block;margin-bottom:14px;font-size:18px}
.footer-brand p{font-size:13px;color:var(--text-low);line-height:1.85;max-width:280px}
.footer-brand .kw{margin-top:14px;font-size:12px;color:var(--text-low);letter-spacing:.04em}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:var(--text-low);margin-bottom:16px;font-weight:600}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--text-mid);transition:color .2s ease-out}
.footer-col a:hover{color:var(--accent)}
.footer-legal{font-size:13px;color:var(--text-low);line-height:1.9}
.footer-legal strong{display:block;color:var(--text-mid);font-size:13px;letter-spacing:.12em;margin-bottom:14px;font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:22px 0 30px;
  font-size:12px;color:var(--text-low);
}

/* ============ 弹层 ============ */
.modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.modal.is-open{display:flex}
.modal-panel{
  position:relative;width:100%;max-width:480px;border-radius:20px;
  padding:32px;background:var(--bg-panel);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-deep);
  max-height:88vh;overflow-y:auto;
}
.modal-panel h3{font-size:20px;margin-bottom:8px}
.modal-panel .modal-sub{font-size:13px;color:var(--text-low);line-height:1.8;margin-bottom:22px}
.modal-close{
  position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);background:transparent;color:var(--text-mid);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:all .2s ease-out;
}
.modal-close:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-mid);margin-bottom:7px}
.field input,.field textarea{
  width:100%;border-radius:10px;border:1px solid var(--line);
  background:var(--bg-1);color:var(--text-hi);
  padding:11px 13px;font-size:14px;line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input{height:46px;padding:0 13px}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(79,224,216,.16);
}
.chip-group{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  font-size:13px;color:var(--text-mid);transition:all .2s ease-out;
}
.chip:hover{border-color:var(--accent-line);color:var(--text-hi)}
.chip.is-active{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent)}
.modal-note{font-size:12px;color:var(--text-low);line-height:1.8;margin:14px 0 18px}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .article-aside{display:none}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:22px}
  .cta-panel .btn{width:100%}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .brand-sub{display:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .article-main{padding-top:36px}
  .hero-figure{aspect-ratio:16/9;margin-top:26px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding:52px 0}
  .site-footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-brand p{max-width:none}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .article-body table{font-size:14px}
}
@media (max-width:520px){
  .nav-cta{display:none}
  .article-hero-head h1{font-size:26px}
  .meta-row{font-size:12px;gap:10px}
  .btn{width:100%}
  .modal-panel{padding:24px 20px;border-radius:16px}
  .related-head{flex-direction:column;gap:8px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#101829;
  --bg-panel:#0D1424;
  --light-0:#F2F5F9;
  --light-1:#F7F9FC;
  --light-line:#E2E8F0;
  --accent:#4FE0D8;
  --accent-deep:#2BB8B1;
  --accent-soft:rgba(79,224,216,.12);
  --accent-line:rgba(79,224,216,.45);
  --gold:#E9C07A;
  --gold-soft:rgba(233,192,122,.14);
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A94;
  --ink:#101829;
  --ink-mid:#4A566B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ok:#57D6A2;
  --warn:#E9C07A;
  --err:#FF7A7A;
  --glass-a:rgba(255,255,255,.07);
  --glass-b:rgba(255,255,255,.02);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.55);
  --shadow-light:0 12px 32px rgba(16,24,41,.10);
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--accent-soft);color:var(--text-hi);}

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

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;background:transparent;color:var(--text-hi);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  color:#04120F;
  box-shadow:0 0 0 1px var(--accent-line),0 10px 30px rgba(79,224,216,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px var(--accent-line),0 14px 34px rgba(79,224,216,.34);color:#04120F;}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px var(--accent-line),0 6px 16px rgba(79,224,216,.18);}
.btn-ghost{border-color:var(--line-strong);color:var(--text-hi);background:rgba(255,255,255,.02);}
.btn-ghost:hover{border-color:var(--accent-line);color:var(--accent);background:var(--accent-soft);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--accent);}
.text-link .arrow{transition:transform var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:500;letter-spacing:.02em;
  background:var(--accent-soft);color:var(--accent);
  border:1px solid rgba(79,224,216,.22);
}
.badge-gold{background:var(--gold-soft);color:var(--gold);border-color:rgba(233,192,122,.26);}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  height:72px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background:rgba(5,7,15,.55);
  backdrop-filter:blur(12px) saturate(120%);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(5,7,15,.82);border-bottom-color:var(--line-strong);}
.header-inner{display:flex;align-items:center;gap:40px;width:100%;}
.brand{display:inline-flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.brand-mark{
  font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text-hi);
  white-space:nowrap;
}
.brand-mark em{font-style:normal;color:var(--accent);}
.brand-note{font-size:12px;color:var(--text-low);letter-spacing:.04em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-link{
  position:relative;font-size:14px;letter-spacing:.02em;color:var(--text-mid);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-hi);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);background:transparent;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-hi);transition:background var(--ease);}
.nav-toggle:hover{border-color:var(--accent-line);background:var(--accent-soft);}
.nav-toggle:hover span{background:var(--accent);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(5,7,15,.96);
  backdrop-filter:blur(14px);
  padding:24px;
  display:flex;flex-direction:column;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);background:transparent;color:var(--text-hi);
  font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--accent-line);color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:18px 0;font-size:19px;font-weight:600;color:var(--text-hi);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--accent);}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:14px;}
.drawer-cta .btn{width:100%;}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-0);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.86) 0%,rgba(5,7,15,.92) 60%,rgba(5,7,15,.97) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.2px 1.2px at 18% 26%,rgba(242,246,255,.55) 50%,transparent 51%),
    radial-gradient(1px 1px at 66% 58%,rgba(79,224,216,.5) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 42% 78%,rgba(233,192,122,.42) 50%,transparent 51%),
    radial-gradient(1px 1px at 86% 18%,rgba(242,246,255,.4) 50%,transparent 51%);
  background-size:240px 240px,320px 320px,400px 400px,280px 280px;
  opacity:.55;
}
.hero-inner{position:relative;z-index:1;padding:38px 0 62px;max-width:860px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-low);margin-bottom:26px;flex-wrap:wrap;}
.crumbs a{color:var(--text-low);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.crumbs .current{color:var(--text-mid);}
.hero h1{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;
  margin:18px 0 0;
  letter-spacing:-.015em;
}
.hero .hero-lead{
  margin-top:18px;font-size:16px;line-height:1.9;color:var(--text-mid);max-width:620px;
}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:30px;flex-wrap:wrap;}
.hero-meta{
  display:flex;align-items:center;gap:0;margin-top:34px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:20px;max-width:620px;
}
.hero-meta span{
  font-size:13px;color:var(--text-low);padding:0 18px;
  border-left:1px solid var(--line);
}
.hero-meta span:first-child{padding-left:0;border-left:0;}
.hero-meta b{color:var(--gold);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;}

/* ---------- 主体两栏 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.guide-layout{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;
  align-items:start;
}
.guide-side{position:sticky;top:100px;}
.side-title{
  font-size:12px;letter-spacing:.14em;color:var(--text-low);
  text-transform:uppercase;margin-bottom:16px;
}
.side-list{border-left:1px solid var(--line);}
.side-list a{
  display:block;position:relative;
  padding:11px 14px;font-size:14px;color:var(--text-mid);
  border-radius:0 8px 8px 0;
  transition:color var(--ease),background var(--ease);
}
.side-list a::before{
  content:"";position:absolute;left:-1px;top:6px;bottom:6px;width:2px;
  background:transparent;border-radius:2px;transition:background var(--ease);
}
.side-list a:hover{color:var(--text-hi);background:rgba(255,255,255,.03);}
.side-list a.is-current{color:var(--text-hi);background:var(--accent-soft);font-weight:600;}
.side-list a.is-current::before{background:var(--accent);}
.side-cta{
  margin-top:28px;padding:20px;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .side-cta{background:var(--bg-panel);}
}
.side-cta h3{font-size:15px;line-height:1.5;margin-bottom:8px;}
.side-cta p{font-size:13px;color:var(--text-mid);line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* 内容流 */
.flow-head{margin-bottom:8px;}
.flow-head h2{font-size:30px;line-height:1.35;}
.flow-head p{margin-top:12px;font-size:15px;color:var(--text-mid);max-width:640px;}
.guide-row{
  display:grid;grid-template-columns:230px minmax(0,1fr);gap:28px;
  padding:32px 0;border-bottom:1px solid var(--line);
  align-items:start;
  scroll-margin-top:96px;
}
.guide-row:first-of-type{border-top:1px solid var(--line);margin-top:28px;}
.guide-thumb{
  position:relative;border-radius:var(--radius-md);overflow:hidden;
  aspect-ratio:4/3;border:1px solid var(--line);background:var(--bg-2);
}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.guide-row:hover .guide-thumb img{transform:scale(1.03);}
.guide-num{
  position:absolute;left:10px;top:10px;z-index:1;
  padding:2px 9px;border-radius:var(--radius-pill);
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:12px;color:#04120F;background:rgba(79,224,216,.92);
}
.guide-body h3{
  font-size:20px;line-height:1.45;margin:12px 0 10px;
  transition:color var(--ease);
}
.guide-row:hover .guide-body h3{color:var(--accent);}
.guide-body p{font-size:14px;line-height:1.9;color:var(--text-mid);}
.guide-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px;flex-wrap:wrap;}
.guide-foot time{font-size:13px;color:var(--text-low);font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* 检查清单 */
.checklist-panel{
  margin-top:64px;padding:34px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--bg-panel);
  scroll-margin-top:96px;
}
.checklist-panel h2{font-size:24px;}
.checklist-panel > p{margin-top:10px;font-size:14px;color:var(--text-mid);max-width:640px;}
.checklist{margin-top:22px;border-top:1px solid var(--line);}
.checklist li{
  display:grid;grid-template-columns:32px minmax(0,1fr);gap:14px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.checklist .mark{
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(79,224,216,.3);background:var(--accent-soft);
  color:var(--accent);font-size:13px;font-family:var(--font-mono);
  margin-top:3px;
}
.checklist h4{font-size:15px;margin-bottom:4px;}
.checklist p{font-size:14px;color:var(--text-mid);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-block{max-width:840px;}
.faq-block .sec-head{margin-bottom:26px;}
.faq-block h2{font-size:30px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--text-hi);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:24px;text-align:center;
  font-size:20px;font-weight:400;color:var(--accent);
  transition:transform var(--ease),color var(--ease);
}
.faq-item summary:hover{color:var(--accent);}
.faq-item[open] summary{color:var(--accent);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .answer{
  padding:0 0 22px;font-size:14px;line-height:1.9;color:var(--text-mid);max-width:760px;
}

/* ---------- 转化面板 ---------- */
.cta-band{padding:0 0 96px;}
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  padding:40px 44px;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  scroll-margin-top:96px;
}
@supports not ((backdrop-filter:blur(14px)) or (-webkit-backdrop-filter:blur(14px))){
  .cta-panel{background:var(--bg-panel);}
}
.cta-panel h2{font-size:26px;line-height:1.4;}
.cta-panel p{margin-top:10px;font-size:14px;color:var(--text-mid);max-width:560px;}
.cta-privacy{
  margin-top:14px;font-size:12px;color:var(--text-low);line-height:1.8;
}
.cta-privacy a{color:var(--text-mid);border-bottom:1px solid var(--line-strong);}
.cta-privacy a:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);background:var(--bg-0);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-mark{font-size:18px;}
.footer-brand p{
  margin-top:14px;font-size:13px;line-height:1.85;color:var(--text-low);max-width:280px;
}
.footer-brand .kw{margin-top:12px;font-size:12px;color:var(--text-mid);letter-spacing:.02em;}
.footer-col h4{font-size:13px;color:var(--text-hi);margin-bottom:16px;letter-spacing:.06em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:13px;color:var(--text-low);}
.footer-col a:hover{color:var(--accent);}
.footer-legal{font-size:12px;line-height:1.9;color:var(--text-low);}
.footer-legal strong{display:block;font-size:13px;color:var(--text-mid);margin-bottom:10px;font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid var(--line);
  font-size:12px;color:var(--text-low);
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:300;
  display:flex;align-items:center;justify-content:center;padding:24px;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.modal.is-open{opacity:1;visibility:visible;}
.modal-panel{
  position:relative;width:100%;max-width:480px;
  border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-deep),inset 0 1px 0 rgba(255,255,255,.08);
  padding:30px;max-height:calc(100vh - 48px);overflow:auto;
  transform:translateY(10px);transition:transform var(--ease);
}
@supports not ((backdrop-filter:blur(16px)) or (-webkit-backdrop-filter:blur(16px))){
  .modal-panel{background:var(--bg-panel);}
}
.modal.is-open .modal-panel{transform:translateY(0);}
.modal-close{
  position:absolute;right:16px;top:16px;
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);background:transparent;color:var(--text-mid);
  font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.modal-close:hover{color:var(--accent);border-color:var(--accent-line);background:var(--accent-soft);}
.modal-panel h3{font-size:19px;padding-right:36px;}
.modal-panel .modal-sub{margin-top:8px;font-size:13px;color:var(--text-mid);line-height:1.8;}
.field{margin-top:18px;}
.field label{display:block;font-size:13px;color:var(--text-mid);margin-bottom:7px;letter-spacing:.02em;}
.field input[type="text"],
.field input[type="tel"],
.field textarea{
  width:100%;min-height:46px;padding:10px 14px;
  border-radius:10px;border:1px solid var(--line-strong);
  background:#0A1020;color:var(--text-hi);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(79,224,216,.16);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--text-mid);
  border:1px solid var(--line-strong);background:transparent;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.chip:hover{border-color:var(--accent-line);color:var(--text-hi);}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip.is-checked{background:var(--accent);border-color:var(--accent);color:#04120F;font-weight:600;}
.field .consent{display:flex;align-items:flex-start;gap:9px;font-size:12px;color:var(--text-low);line-height:1.7;}
.field .consent input{margin-top:4px;accent-color:var(--accent);width:15px;height:15px;}
.modal-actions{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.modal-actions .btn{width:100%;}
.modal-note{font-size:12px;color:var(--text-low);line-height:1.8;}
.form-tip{
  display:none;margin-top:14px;padding:10px 14px;border-radius:10px;
  font-size:13px;color:var(--ok);background:rgba(87,214,162,.1);
  border:1px solid rgba(87,214,162,.28);
}
.form-tip.is-visible{display:block;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .guide-side{position:static;}
  .side-list{display:flex;flex-wrap:wrap;gap:8px;border-left:0;}
  .side-list a{
    border:1px solid var(--line);border-radius:var(--radius-pill);
    padding:8px 15px;font-size:13px;
  }
  .side-list a::before{display:none;}
  .side-list a.is-current{background:var(--accent);color:#04120F;border-color:var(--accent);}
  .side-cta{display:none;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-legal{grid-column:1 / -1;}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:34px;}
  .cta-panel .btn{width:100%;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:16px;}
  .brand-note{display:none;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .hero-inner{padding:28px 0 44px;}
  .hero-actions{gap:16px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .text-link{justify-content:center;width:100%;}
  .hero-meta{flex-direction:column;align-items:flex-start;gap:8px;}
  .hero-meta span{padding:0;border-left:0;}
  .guide-row{grid-template-columns:minmax(0,1fr);gap:18px;padding:26px 0;}
  .guide-thumb{aspect-ratio:16/9;}
  .flow-head h2{font-size:24px;}
  .guide-body h3{font-size:18px;}
  .checklist-panel{padding:24px;margin-top:44px;}
  .checklist-panel h2{font-size:20px;}
  .faq-block h2{font-size:24px;}
  .cta-band{padding:0 0 52px;}
  .cta-panel{padding:26px;}
  .cta-panel h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:34px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .modal{padding:16px;}
  .modal-panel{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .guide-num{font-size:11px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A1020;
  --bg-2:#101829;
  --bg-panel:#0D1424;
  --light-0:#F2F5F9;
  --light-1:#F7F9FC;
  --light-line:#E2E8F0;
  --accent:#4FE0D8;
  --accent-deep:#2BB8B1;
  --accent-soft:rgba(79,224,216,.12);
  --accent-line:rgba(79,224,216,.45);
  --gold:#E9C07A;
  --gold-soft:rgba(233,192,122,.14);
  --text-hi:#F2F6FF;
  --text-mid:#A9B6CC;
  --text-low:#6C7A94;
  --ink:#101829;
  --ink-mid:#4A566B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ok:#57D6A2;
  --warn:#E9C07A;
  --err:#FF7A7A;
  --glass-a:rgba(255,255,255,.07);
  --glass-b:rgba(255,255,255,.02);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.55);
  --shadow-light:0 12px 32px rgba(16,24,41,.10);
  --font-sans:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ease:200ms ease-out;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-hi);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.28;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text-hi);background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-xs);padding:12px 14px;width:100%;transition:border-color var(--ease),box-shadow var(--ease);}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,224,216,.16);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#04110F;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip:focus{left:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  height:var(--header-h);
  background:rgba(5,7,15,.55);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:baseline;gap:10px;min-width:0;}
.brand-mark{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.brand-mark em{font-style:normal;color:var(--accent);}
.brand-sub{font-size:12px;color:var(--text-low);letter-spacing:.02em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-link{
  position:relative;font-size:14px;letter-spacing:.02em;color:var(--text-mid);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-hi);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-hi);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(160deg,rgba(79,224,216,.98),var(--accent-deep));
  color:#03130F;
  box-shadow:0 0 0 1px var(--accent-line),0 10px 30px rgba(79,224,216,.22);
}
.btn-primary:hover{color:#03130F;transform:translateY(-2px);box-shadow:0 0 0 1px var(--accent-line),0 14px 34px rgba(79,224,216,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px var(--accent-line),0 6px 16px rgba(79,224,216,.14);}
.btn-ghost{
  border-color:var(--line-strong);color:var(--text-hi);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--accent-line);color:var(--accent);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;border-radius:10px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);font-weight:500;
}
.link-arrow::after{content:"→";transition:transform var(--ease);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ============ HERO ============ */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  background-image:linear-gradient(rgba(5,7,15,.78),rgba(5,7,15,.88)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.75;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%,rgba(255,255,255,.6) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 27% 68%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1.8px 1.8px at 44% 18%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(1.3px 1.3px at 61% 52%,rgba(255,255,255,.42) 50%,transparent 51%),
    radial-gradient(1.7px 1.7px at 78% 30%,rgba(255,255,255,.5) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 88% 72%,rgba(255,255,255,.38) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 34% 88%,rgba(255,255,255,.34) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 70% 84%,rgba(255,255,255,.44) 50%,transparent 51%);
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--text-low);margin-bottom:22px;}
.breadcrumb a{color:var(--text-low);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span[aria-current]{color:var(--text-mid);}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--accent);
  background:var(--accent-soft);border:1px solid var(--accent-line);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.cat-hero h1{
  margin:20px 0 16px;
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.3;max-width:860px;
}
.hero-desc{max-width:720px;color:var(--text-mid);font-size:16px;line-height:1.95;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:22px;}

/* ============ FILTER BAR ============ */
.filter-bar{
  position:sticky;top:var(--header-h);z-index:70;
  background:rgba(5,7,15,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.filter-inner{display:flex;align-items:center;gap:18px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.filter-label{font-size:12px;letter-spacing:.08em;color:var(--text-low);white-space:nowrap;}
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  min-height:36px;padding:0 16px;border-radius:999px;
  font-size:13px;letter-spacing:.02em;color:var(--text-mid);
  border:1px solid var(--line-strong);background:transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.tag:hover{color:var(--text-hi);border-color:var(--accent-line);}
.tag:active{transform:translateY(1px);}
.tag.is-active{background:var(--accent);border-color:var(--accent);color:#03130F;font-weight:600;}

/* ============ SECTIONS ============ */
.section{padding:96px 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:34px;margin-bottom:14px;}
.section-head p{color:var(--text-mid);font-size:15px;}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--gold);margin-bottom:14px;display:block;}

/* ============ CASE GRID ============ */
.case-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;
}
.case-card{
  display:flex;flex-direction:column;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.case-card:hover{
  border-color:rgba(79,224,216,.4);
  transform:translateY(-2px);
  box-shadow:0 20px 46px rgba(0,0,0,.45);
}
.case-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.case-card:hover .case-media img{transform:scale(1.03);}
.case-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.55));
}
.case-body{padding:26px 26px 24px;display:flex;flex-direction:column;gap:14px;flex:1;}
.case-body h3{font-size:20px;line-height:1.4;}
.case-body p{font-size:14px;line-height:1.85;color:var(--text-mid);}
.case-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-low);
}
.case-meta .badge{
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:var(--accent-soft);color:var(--accent-deep);border:1px solid var(--accent-line);
}
.case-link{font-size:14px;color:var(--accent);font-weight:500;display:inline-flex;align-items:center;gap:6px;}
.case-link::after{content:"→";transition:transform var(--ease);}
.case-card:hover .case-link::after{transform:translateX(4px);}
.case-card.is-hidden{display:none;}

/* ============ STEPS ============ */
.step-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);}
.step{
  padding:34px 26px 30px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.step:last-child{border-right:0;}
.step:hover{background:rgba(255,255,255,.02);}
.step-no{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--gold);letter-spacing:.08em;}
.step h3{font-size:18px;margin:12px 0 10px;}
.step p{font-size:14px;color:var(--text-mid);line-height:1.85;}

/* ============ TABLE ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);}
.qtable{width:100%;border-collapse:collapse;min-width:620px;}
.qtable th,.qtable td{
  text-align:left;padding:16px 22px;font-size:14px;line-height:1.8;
  border-bottom:1px solid var(--line);
}
.qtable thead th{background:var(--bg-2);color:var(--text-hi);font-weight:600;font-size:13px;letter-spacing:.04em;}
.qtable tbody tr:last-child td{border-bottom:0;}
.qtable tbody td:first-child{color:var(--text-hi);font-weight:600;white-space:nowrap;}
.qtable tbody td{color:var(--text-mid);}
.qtable tbody tr:hover td{background:rgba(255,255,255,.02);}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:24px 0;text-align:left;font-size:16px;font-weight:600;line-height:1.7;color:var(--text-hi);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:4px;
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out;}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 0 26px;font-size:14px;line-height:1.9;color:var(--text-mid);max-width:900px;}
.faq-item.is-open .faq-q{color:var(--accent);}

/* ============ CTA PANEL ============ */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-copy{max-width:640px;}
.cta-copy h2{font-size:30px;margin-bottom:14px;}
.cta-copy p{color:var(--text-mid);font-size:15px;}
.cta-note{margin-top:26px;font-size:12px;color:var(--text-low);}
.cta-note a{color:var(--text-mid);text-decoration:underline;text-underline-offset:3px;}
.cta-note a:hover{color:var(--accent);}

/* ============ FOOTER ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr .8fr .8fr 1.2fr;gap:48px;
  padding-bottom:56px;
}
.footer-brand .brand-mark{font-size:18px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-mid);line-height:1.85;max-width:320px;}
.footer-brand .kw{margin-top:14px;font-size:12px;color:var(--text-low);letter-spacing:.04em;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-low);margin-bottom:18px;font-weight:600;}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--text-mid);}
.footer-col a:hover{color:var(--accent);}
.footer-legal{font-size:13px;color:var(--text-low);line-height:1.9;}
.footer-legal strong{display:block;color:var(--text-mid);font-size:13px;letter-spacing:.06em;margin-bottom:12px;font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-low);
}

/* ============ DRAWER ============ */
.drawer{
  position:fixed;inset:0;z-index:95;
  background:var(--bg-0);
  padding:96px 24px 40px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a.drawer-link{
  display:block;padding:20px 0;font-size:20px;font-weight:600;
  border-bottom:1px solid var(--line);color:var(--text-hi);
}
.drawer a.drawer-link.is-active{color:var(--accent);}
.drawer-foot{margin-top:auto;padding-top:28px;}
.drawer-foot .btn{width:100%;}

/* ============ MODAL ============ */
.modal{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  padding:24px;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.modal.is-open{opacity:1;visibility:visible;}
.modal-mask{position:absolute;inset:0;background:rgba(5,7,15,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);}
.modal-panel{
  position:relative;z-index:2;width:100%;max-width:480px;
  background:var(--bg-panel);border:1px solid var(--line-strong);border-radius:20px;
  padding:34px;box-shadow:var(--shadow-deep);
  max-height:calc(100vh - 48px);overflow:auto;
  transform:translateY(10px);transition:transform var(--ease);
}
.modal.is-open .modal-panel{transform:translateY(0);}
.modal-close{
  position:absolute;right:20px;top:20px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--text-mid);font-size:18px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:border-color var(--ease),color var(--ease);
}
.modal-close:hover{border-color:var(--accent-line);color:var(--accent);}
.modal-panel h3{font-size:19px;margin-bottom:10px;padding-right:36px;}
.modal-panel > p{font-size:13px;color:var(--text-mid);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-mid);margin-bottom:8px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:8px 14px;border-radius:999px;font-size:13px;color:var(--text-mid);
  border:1px solid var(--line-strong);transition:all var(--ease);
}
.chip.is-active{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent);}
.chip:hover{border-color:var(--accent-line);color:var(--text-hi);}
.check{display:flex;align-items:flex-start;gap:10px;font-size:12px;color:var(--text-low);line-height:1.7;margin:6px 0 18px;}
.check input{width:16px;height:16px;margin-top:3px;flex:0 0 auto;accent-color:var(--accent);border-radius:4px;}

/* ============ RESPONSIVE ============ */
@media (max-width:1280px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
  .footer-legal{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .step-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step:nth-child(2n){border-right:0;}
  .section{padding:72px 0;}
  .section-head h2{font-size:28px;}
  .cta-panel{padding:40px 32px;}
  .cta-copy h2{font-size:26px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .brand-sub{display:none;}
  .cat-hero{padding:40px 0 48px;}
  .hero-desc{font-size:15px;}
  .hero-actions{gap:16px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{width:100%;justify-content:flex-start;}
  .section{padding:52px 0;}
  .case-grid{grid-template-columns:1fr;gap:20px;}
  .step-list{grid-template-columns:1fr;}
  .step{border-right:0;padding:26px 20px;}
  .filter-inner{padding-top:12px;padding-bottom:12px;gap:12px;}
  .filter-tags{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;-webkit-overflow-scrolling:touch;}
  .tag{white-space:nowrap;}
  .faq-q{font-size:15px;padding:20px 0;}
  .cta-panel{padding:32px 22px;gap:24px;}
  .cta-panel .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-bottom:40px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px;}
  .section-head h2{font-size:24px;}
  .case-body{padding:20px 18px;}
  .modal{padding:16px;}
  .modal-panel{padding:24px 20px;}
  .breadcrumb{font-size:11px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}