/* roulang page: index */
:root{
  --ink-900:#060B16;
  --ink-800:#0B1424;
  --ink-700:#111F33;
  --primary:#17C3D9;
  --primary-dark:#0E8FA6;
  --primary-light:#6DE3F2;
  --accent:#C8F53C;
  --accent-dark:#A6D124;
  --warm:#FF6B3D;
  --text:#E8F1F8;
  --text-2:#9FB2C6;
  --text-3:#6B7F94;
  --glass:rgba(255,255,255,.055);
  --glass-line:rgba(255,255,255,.10);
  --radius-card:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-hover:0 18px 40px -16px rgba(0,0,0,.75);
  --mono:ui-monospace,"JetBrains Mono","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;
  background:var(--ink-900);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:104px 0;position:relative}
.section-alt{background:var(--ink-800)}
.hairline{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.13),transparent)}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{font-size:34px;font-weight:600;line-height:1.3;color:#fff;letter-spacing:-.01em}
.section-desc{margin-top:16px;font-size:16px;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--radius-pill);border:1px solid rgba(23,195,217,.45);
  color:var(--primary-light);font-size:11px;letter-spacing:.14em;background:rgba(23,195,217,.08);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(200,245,60,.8)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(6,11,22,.88),rgba(6,11,22,0));
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(23,195,217,.25),rgba(200,245,60,.12));
  border:1px solid rgba(23,195,217,.42);
  box-shadow:inset 0 0 18px rgba(23,195,217,.18);
}
.brand-mark svg{width:24px;height:24px}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-main{font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-sub{font-size:11px;font-weight:500;color:var(--text-2);letter-spacing:.12em}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav-link{
  position:relative;padding:8px 11px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 10px rgba(200,245,60,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.search-wrap{position:relative}
.search-toggle{
  width:40px;height:40px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.search-toggle:hover{border-color:rgba(23,195,217,.55);color:var(--primary-light);background:rgba(23,195,217,.1)}
.search-toggle svg{width:18px;height:18px}
.nav-search{
  position:absolute;right:0;top:calc(100% + 12px);width:320px;padding:14px;
  border-radius:var(--radius-card);background:rgba(11,20,36,.96);
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-hover);display:none;
}
.search-wrap.open .nav-search{display:block}
.nav-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);
  color:var(--text);outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,195,217,.18)}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  place-items:center;cursor:pointer;transition:border-color .2s ease;
}
.menu-toggle:hover{border-color:rgba(23,195,217,.55)}
.menu-toggle svg{width:20px;height:20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .24s ease,background .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#06130A;
  box-shadow:0 0 0 1px rgba(200,245,60,.35),0 10px 30px -8px rgba(200,245,60,.45);
}
.btn-primary:hover{
  transform:translateY(-2px);filter:brightness(1.05);
  box-shadow:0 0 0 1px rgba(200,245,60,.5),0 18px 40px -10px rgba(200,245,60,.55);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(23,195,217,.07);border-color:rgba(23,195,217,.5);color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(23,195,217,.16);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary-light);
  font-size:14px;font-weight:600;transition:gap .22s ease,color .2s ease;
}
.link-arrow:hover{gap:12px;color:var(--accent)}
.link-arrow svg{width:15px;height:15px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 420px at 78% 4%,rgba(23,195,217,.18),transparent 62%),
    radial-gradient(620px 380px at 4% 66%,rgba(200,245,60,.07),transparent 60%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-title{
  font-size:clamp(34px,4.4vw,56px);line-height:1.18;font-weight:700;
  letter-spacing:-.015em;color:#fff;margin:20px 0 20px;
}
.hero-title .hl{color:var(--primary)}
.hero-sub{font-size:19px;line-height:1.8;color:var(--text-2);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}
.hero-stats li{font-size:13.5px;color:var(--text-2);display:flex;align-items:baseline;gap:6px}
.hero-stats b{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:18px;font-weight:700;color:var(--accent);
}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:16px;
  border:1px solid rgba(255,255,255,.12);box-shadow:0 30px 60px -30px rgba(0,0,0,.9);
}
.float-card{
  position:absolute;left:-44px;bottom:34px;width:286px;padding:20px;
  border-radius:var(--radius-card);background:rgba(255,255,255,.075);
  border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-hover);
}
.float-card h3{font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.08em;margin-bottom:14px}
.float-card .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.1);font-size:13.5px;color:var(--text-2)}
.float-card .row:last-child{border-bottom:none;padding-bottom:0}
.float-card .row .val{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--primary-light);font-weight:600}
.float-card .row .val.ok{color:var(--accent)}

/* ---------- 指标看板 ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric-card{
  position:relative;padding:26px 22px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.metric-card::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(23,195,217,.45);box-shadow:var(--shadow-hover)}
.metric-value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:700;line-height:1;color:var(--primary);
  transition:color .25s ease;
}
.metric-card:hover .metric-value{color:var(--accent)}
.metric-unit{font-size:14px;color:var(--text-2);margin-left:6px;letter-spacing:.02em}
.metric-label{margin-top:14px;font-size:13px;color:var(--text-2);letter-spacing:.03em}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.m-card{
  position:relative;display:flex;flex-direction:column;gap:14px;padding:28px;
  border-radius:var(--radius-card);background:var(--glass);
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.m-card:hover{transform:translateY(-4px);border-color:rgba(200,245,60,.35);box-shadow:var(--shadow-hover)}
.m-7{grid-column:span 7}
.m-5{grid-column:span 5}
.m-num{font-family:var(--mono);font-size:12px;color:var(--text-3);letter-spacing:.16em}
.m-icon{width:34px;height:34px;color:var(--primary)}
.m-title{font-size:22px;font-weight:600;color:#fff}
.m-text{font-size:15px;color:var(--text-2)}
.m-card.with-media{flex-direction:row;align-items:center;gap:26px}
.m-card.with-media .m-body{display:flex;flex-direction:column;gap:14px;flex:1;min-width:0}
.m-thumb{
  width:200px;flex-shrink:0;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.1);
}

/* ---------- 结果对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
  padding:28px 26px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.028);border:1px solid rgba(255,255,255,.09);
}
.compare-col.after{
  background:rgba(23,195,217,.075);border-color:rgba(23,195,217,.45);
  box-shadow:0 18px 40px -22px rgba(23,195,217,.45);
}
.compare-head{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:#fff;margin-bottom:16px}
.compare-head .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:11px;letter-spacing:.06em;
}
.compare-col .tag{background:rgba(255,255,255,.08);color:var(--text-2);border:1px solid rgba(255,255,255,.12)}
.compare-col.after .tag{background:var(--accent);color:#06130A;border-color:transparent;font-weight:700}
.compare-row{
  display:flex;align-items:flex-start;gap:12px;padding:15px 0;
  border-bottom:1px solid rgba(255,255,255,.07);font-size:15px;color:var(--text-2);
}
.compare-row:last-child{border-bottom:none;padding-bottom:0}
.compare-row .mark{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;line-height:1;margin-top:4px;
}
.compare-col .mark{background:rgba(255,255,255,.08);color:var(--text-3)}
.compare-col.after .mark{background:rgba(200,245,60,.18);color:var(--accent);border:1px solid rgba(200,245,60,.5)}
.compare-foot{margin-top:36px;display:flex;flex-wrap:wrap;align-items:center;gap:18px}

/* ---------- 内容卡片 ---------- */
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(23,195,217,.45);box-shadow:var(--shadow-hover)}
.post-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);border-radius:16px 16px 0 0}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{display:flex;flex-direction:column;gap:12px;padding:20px;flex:1}
.post-title{font-size:17px;font-weight:600;line-height:1.55;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-summary{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  font-size:11px;letter-spacing:.06em;border:1px solid rgba(23,195,217,.5);color:var(--primary-light);
  background:rgba(23,195,217,.07);white-space:nowrap;
}
.badge-accent{background:var(--accent);color:#06130A;border-color:transparent;font-weight:700}
.badge-time{border-color:rgba(255,255,255,.14);color:var(--text-3);background:rgba(255,255,255,.04)}
.empty-state{
  padding:56px 24px;border-radius:var(--radius-card);text-align:center;
  background:rgba(255,255,255,.03);border:1px dashed rgba(255,255,255,.16);
}
.empty-state svg{width:56px;height:56px;margin:0 auto 18px;color:var(--primary);opacity:.75}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-contact{
  margin-top:26px;padding:22px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.045);border:1px solid var(--glass-line);
}
.faq-contact p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.faq-list{border-top:1px solid rgba(255,255,255,.09)}
.faq-item{border-bottom:1px solid rgba(255,255,255,.09)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px 22px 18px;background:none;border:none;text-align:left;
  font-size:17px;font-weight:500;color:var(--text);cursor:pointer;
  transition:color .2s ease;min-height:64px;
}
.faq-q:hover{color:var(--primary-light)}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:var(--accent);opacity:0;transition:opacity .22s ease;
}
.faq-item.open .faq-q{color:#fff}
.faq-item.open .faq-q::before{opacity:1}
.faq-arrow{flex-shrink:0;color:var(--text-2);transition:transform .28s ease,color .22s ease}
.faq-arrow svg{width:18px;height:18px}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 24px 18px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:start}
.point-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.1);font-size:15px;color:var(--text-2)}
.point-list li:last-child{border-bottom:none}
.point-list .idx{font-family:var(--mono);font-size:13px;color:var(--accent);flex-shrink:0;padding-top:3px}
.form-card{
  padding:30px;border-radius:var(--radius-card);background:rgba(255,255,255,.055);
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;color:var(--text-2);letter-spacing:.04em}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.13);
  color:var(--text);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;min-height:118px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);background:rgba(23,195,217,.06);
  box-shadow:0 0 0 3px rgba(23,195,217,.18);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field select option{background:var(--ink-800);color:var(--text)}
.form-note{margin-top:14px;font-size:12px;line-height:1.7;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-800);border-top:1px solid rgba(255,255,255,.08);padding:68px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,195,217,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .brand-main{font-size:16px}
.footer-desc{font-size:14px;color:var(--text-2);max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-link{display:block;padding:7px 0;font-size:14px;color:var(--text-2);transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary-light);transform:translateX(3px)}
.footer-info{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-info strong{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.07);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
  font-size:13px;color:var(--text-2);cursor:pointer;transition:.22s ease;
}
.back-top:hover{border-color:rgba(23,195,217,.5);color:var(--primary-light);transform:translateY(-2px)}
.back-top svg{width:14px;height:14px}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;display:flex;flex-direction:column;
  padding:22px 20px 28px;background:rgba(6,11,22,.97);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transform:translateY(-102%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);cursor:pointer;
}
.drawer-link{
  display:block;padding:16px 4px;font-size:20px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.07);transition:color .2s ease,padding-left .2s ease;
}
.drawer-link:hover,.drawer-link.active{color:#fff;padding-left:10px}
.drawer-link.active{color:var(--accent)}
.drawer-foot{margin-top:auto;padding-top:28px;display:flex;flex-direction:column;gap:14px}
body.no-scroll{overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .section{padding:76px 0}
  .section-title{font-size:30px}
  .section-head{margin-bottom:40px}
  .hero{padding:48px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual img{aspect-ratio:16/10}
  .float-card{position:static;width:100%;margin-top:18px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .m-7,.m-5{grid-column:span 6}
  .m-card.with-media{flex-direction:column;align-items:flex-start}
  .m-thumb{width:100%;aspect-ratio:16/9;order:-1}
  .posts-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:34px}
  .faq-aside{position:static}
  .form-grid{grid-template-columns:1fr;gap:36px}
  .compare{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:36px 0 60px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:16.5px}
  .metric-value{font-size:34px}
  .m-7,.m-5{grid-column:span 12}
  .posts-grid{grid-template-columns:1fr}
  .compare-col{padding:22px 20px}
  .compare-row{padding:13px 0}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .btn{width:100%}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .nav-actions .btn{width:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-sub{display:none}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .metric-card{padding:20px 16px}
  .metric-value{font-size:28px}
  .faq-q{font-size:15.5px;padding-left:14px}
  .faq-a-inner{padding-left:14px}
}

/* roulang page: article */
:root{
  --ink-900:#060B16;
  --ink-800:#0B1424;
  --ink-700:#111F33;
  --primary:#17C3D9;
  --primary-deep:#0E8FA6;
  --primary-light:#6DE3F2;
  --accent:#C8F53C;
  --accent-deep:#A6D124;
  --warm:#FF6B3D;
  --text:#E8F1F8;
  --text-2:#9FB2C6;
  --text-3:#6B7F94;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.055);
  --radius-card:18px;
  --radius-sm:12px;
  --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-float:0 18px 40px -16px rgba(0,0,0,.75);
  --glow-accent:0 0 0 1px rgba(200,245,60,.35), 0 10px 30px -8px rgba(200,245,60,.45);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.site-body{
  margin:0;
  padding:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
ul,ol{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;}
p{margin:0;}
.mono{font-family:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-variant-numeric:tabular-nums;}
.num{font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;font-variant-numeric:tabular-nums;font-weight:700;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,11,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
@media (max-width:767px){.header-inner{height:56px;gap:12px;}}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:rgba(23,195,217,.12);
  border:1px solid rgba(23,195,217,.35);
  display:grid;place-items:center;
}
.brand-mark svg{width:24px;height:24px;}
.brand-text{display:block;}
.brand-main{display:block;font-size:17px;font-weight:700;letter-spacing:.01em;line-height:1.25;}
.brand-sub{display:block;font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--text-2);}
@media (max-width:520px){.brand-main{font-size:15px;}.brand-sub{font-size:10px;letter-spacing:.08em;}}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 12px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--accent);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-input{
  width:220px;height:38px;padding:0 36px 0 14px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:999px;
  color:var(--text);font-size:13px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,width .2s ease;
}
.search-input::placeholder{color:var(--text-3);}
.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,195,217,.18);width:280px;}
.search-icon{position:absolute;right:13px;color:var(--text-3);font-size:13px;pointer-events:none;}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text);align-items:center;justify-content:center;
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .search-wrap{display:none;}
  .hamburger{display:inline-flex;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-deep) 100%);
  color:#06130A;font-weight:700;box-shadow:var(--glow-accent);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,245,60,.4),0 14px 40px -8px rgba(200,245,60,.5);filter:brightness(1.05);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(23,195,217,.5);
  color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(23,195,217,.12);transform:translateY(-2px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary-light);
  font-size:14px;font-weight:600;transition:gap .2s ease,color .2s ease;
}
.btn-link:hover{gap:12px;color:var(--accent);}
.btn:focus-visible,.nav-link:focus-visible,.footer-link:focus-visible,.hamburger:focus-visible,.back-top:focus-visible,.drawer-link:focus-visible,.search-input:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;transform:none;pointer-events:none;}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  border-radius:999px;font-size:11px;letter-spacing:.06em;font-weight:600;
}
.badge-primary{color:var(--primary-light);border:1px solid rgba(23,195,217,.45);background:rgba(23,195,217,.08);}
.badge-time{color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);}
.badge-accent{color:#06130A;background:var(--accent);font-weight:700;}
.badge-warm{color:#2A0C02;background:var(--warm);}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(6,11,22,.92);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:88px 24px 32px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-link{
  font-size:20px;font-weight:600;color:var(--text);
  padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-link.active{color:var(--accent);}
.drawer-cta{margin-top:auto;padding-top:24px;}
body.drawer-open{overflow:hidden;}

/* ---------- hero / page head ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 40px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(6,11,22,.95) 0%,rgba(6,11,22,.78) 55%,rgba(6,11,22,.6) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,195,217,.55),transparent);
}
.page-hero .container{position:relative;z-index:1;}
@media (min-width:768px){.page-hero{padding:72px 0 52px;}}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-2);}

.article-title{
  font-size:28px;font-weight:700;line-height:1.28;letter-spacing:-.01em;
  max-width:900px;color:var(--text);
}
@media (min-width:768px){.article-title{font-size:36px;}}
@media (min-width:1024px){.article-title{font-size:40px;}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;padding-bottom:18px;
  font-size:13px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);}

/* ---------- article layout ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{margin-bottom:32px;}
.section-title{font-size:24px;font-weight:600;}
@media (min-width:768px){.section-title{font-size:30px;}}
.section-desc{margin-top:12px;color:var(--text-2);font-size:15px;max-width:720px;}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:56px;}
}

.article-body{
  max-width:780px;margin:0 auto;
  font-size:16px;line-height:1.9;color:#DCE7F2;
  overflow-wrap:break-word;word-break:break-word;
}
@media (min-width:768px){.article-body{font-size:17px;}}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:22px;font-weight:600;color:var(--text);
  margin:44px 0 16px;padding-left:14px;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
@media (min-width:768px){.article-body h2{font-size:26px;}}
.article-body h3{
  display:flex;align-items:center;gap:10px;
  font-size:19px;font-weight:600;color:var(--text);margin:32px 0 12px;
}
.article-body h3::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--accent);flex:0 0 auto;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--primary-light);margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-body li{margin:.5em 0;}
.article-body li::marker{color:var(--primary);}
.article-body a{color:var(--primary-light);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:var(--text);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  border-left:3px solid var(--accent);border-radius:0 14px 14px 0;
  background:var(--glass);color:var(--text-2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.article-body img{border-radius:16px;margin:26px 0;width:100%;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:-14px;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:rgba(23,195,217,.1);color:var(--text);font-weight:600;}
.article-body code{
  font-family:"JetBrains Mono",Consolas,monospace;font-size:.9em;
  background:rgba(23,195,217,.12);color:var(--primary-light);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:var(--ink-700);border:1px solid var(--line);border-radius:14px;
  padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:none;padding:0;color:var(--text-2);}
.article-body hr{border:none;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);margin:36px 0;}

.cms-empty{
  max-width:780px;margin:0 auto;
  padding:56px 28px;text-align:center;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
}
.cms-empty .empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
  display:grid;place-items:center;background:var(--ink-700);
  border:1px solid rgba(23,195,217,.35);
  background-image:repeating-linear-gradient(135deg,rgba(23,195,217,.12) 0 6px,transparent 6px 14px);
}
.cms-empty h2{font-size:20px;margin-bottom:10px;}
.cms-empty p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ---------- sidebar ---------- */
.side-card{
  position:sticky;top:100px;
  padding:22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title i{color:var(--primary);}
.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 rgba(255,255,255,.1);transition:color .2s ease,padding .2s ease;
}
.side-link:last-child{border-bottom:none;}
.side-link:hover{color:var(--primary-light);padding-left:4px;}
.side-note{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.7;}

/* ---------- cards ---------- */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-float);border-color:rgba(200,245,60,.35);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3);}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;padding:40px 28px;
  background:
    radial-gradient(120% 140% at 100% 0%,rgba(23,195,217,.22) 0%,transparent 55%),
    linear-gradient(150deg,var(--ink-800) 0%,var(--ink-700) 100%);
  border:1px solid rgba(23,195,217,.3);
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,245,60,.18),transparent 68%);
}
.cta-inner{position:relative;z-index:1;display:grid;gap:24px;align-items:center;}
@media (min-width:900px){.cta-inner{grid-template-columns:1.4fr 1fr;}}
.cta-title{font-size:24px;font-weight:700;}
@media (min-width:768px){.cta-title{font-size:30px;}}
.cta-text{margin-top:12px;color:var(--text-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-start;}
@media (min-width:900px){.cta-actions{justify-content:flex-end;}}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:20px;padding:56px 0 28px;
  background:var(--ink-800);
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,195,217,.5),transparent);
}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:420px;}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:16px;color:var(--text);}
.footer-link{
  display:block;padding:6px 0;font-size:14px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--primary-light);transform:translateX(3px);}
.footer-info{font-size:14px;color:var(--text-2);line-height:1.9;}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:13px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.back-top svg{width:15px;height:15px;}
.back-top:hover{color:var(--accent);border-color:rgba(200,245,60,.45);transform:translateY(-2px);}

/* roulang page: category1 */
:root{
  --ink-900:#060B16;
  --ink-800:#0B1424;
  --ink-700:#111F33;
  --primary:#17C3D9;
  --primary-deep:#0E8FA6;
  --primary-light:#6DE3F2;
  --accent:#C8F53C;
  --accent-deep:#A6D124;
  --warm:#FF6B3D;
  --text:#E8F1F8;
  --text-2:#9FB2C6;
  --text-3:#6B7F94;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --radius-card:18px;
  --radius-sm:12px;
  --radius-img:16px;
  --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-float:0 18px 40px -16px rgba(0,0,0,.75);
  --container:1240px;
  --mono:ui-monospace,"JetBrains Mono","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(--ink-900);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:600;letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,11,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:56px;display:flex;align-items:center;gap:16px;
}
@media (min-width:1024px){.header-inner{padding:0 32px;height:68px;gap:24px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(23,195,217,.20),rgba(200,245,60,.10));
  border:1px solid rgba(23,195,217,.35);
}
.brand-mark svg{width:26px;height:26px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.02em;}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--primary-light);}
.main-nav{display:none;}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);opacity:.95;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-search{display:none;}
@media (min-width:1280px){
  .nav-search{
    display:flex;align-items:center;gap:8px;width:320px;
    height:40px;padding:0 14px;border-radius:999px;
    background:var(--glass);border:1px solid var(--line);
  }
  .nav-search input{
    flex:1;background:transparent;border:0;outline:none;color:var(--text);font-size:14px;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .nav-search svg{width:16px;height:16px;color:var(--text-3);flex:0 0 16px;}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;min-height:44px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--accent),var(--accent-deep));
  color:#06130A;font-weight:700;
  box-shadow:0 0 0 1px rgba(200,245,60,.35),0 10px 30px -8px rgba(200,245,60,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(200,245,60,.5),0 14px 40px -8px rgba(200,245,60,.6);filter:brightness(1.05);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;border-color:rgba(23,195,217,.5);color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(23,195,217,.12);border-color:rgba(23,195,217,.75);color:var(--text);}
.btn-sm{padding:10px 18px;font-size:13.5px;min-height:40px;}
.nav-cta{display:none;}
@media (min-width:768px){.nav-cta{display:inline-flex;}}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* ---------- drawer ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(6,11,22,.92);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  padding:72px 24px 28px;
  transform:translateY(-100%);
  opacity:0;pointer-events:none;
  transition:transform .3s ease,opacity .3s ease;
}
.nav-drawer.open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:12px;}
.drawer-link{
  font-size:20px;font-weight:600;color:var(--text-2);
  padding:14px 12px;border-radius:14px;
  border-bottom:1px solid var(--line-soft);
}
.drawer-link.active{color:var(--text);background:rgba(23,195,217,.10);}
.drawer-cta{margin-top:auto;width:100%;}
.drawer-close{
  position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);color:var(--text);font-size:18px;
}

/* ---------- section base ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-alt{background:var(--ink-800);}
.section-line{border-top:1px solid var(--line-soft);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;letter-spacing:.14em;color:var(--primary-light);
  text-transform:uppercase;font-weight:600;
  padding:6px 12px;border-radius:999px;
  border:1px solid rgba(23,195,217,.35);background:rgba(23,195,217,.08);
}
.section-title{font-size:30px;font-weight:600;margin-top:16px;}
@media (min-width:1024px){.section-title{font-size:34px;}}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;max-width:760px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- hero ---------- */
.hero{padding:32px 0 48px;}
@media (min-width:1024px){.hero{padding:56px 0 88px;}}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .sep{color:var(--text-3);}
.hero-grid{display:grid;gap:32px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:56px;}
}
.hero h1{
  font-size:34px;font-weight:700;line-height:1.22;letter-spacing:.01em;
}
@media (min-width:640px){.hero h1{font-size:40px;}}
@media (min-width:1024px){.hero h1{font-size:48px;}}
.hero h1 .hl{color:var(--primary);}
.hero h1 .hl-accent{color:var(--accent);}
.hero-lead{margin-top:18px;color:var(--text-2);font-size:17px;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-mini{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:30px;
  padding-top:20px;border-top:1px solid var(--line-soft);
}
.hero-mini-item{font-size:13px;color:var(--text-3);}
.hero-mini-item strong{display:block;font-family:var(--mono);font-size:18px;color:var(--text);font-variant-numeric:tabular-nums;font-weight:700;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--radius-card);
}
@media (min-width:1024px){.hero-visual img{aspect-ratio:1/1;}}
.hero-float{
  position:absolute;left:16px;right:16px;bottom:-18px;
  background:rgba(11,20,36,.86);
  border:1px solid var(--line);border-radius:var(--radius-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-float);
  padding:16px 18px;
}
@media (min-width:768px){.hero-float{left:24px;right:auto;width:270px;bottom:-22px;}}
.hero-float .row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2);padding:5px 0;}
.hero-float .row span:last-child{font-family:var(--mono);color:var(--text);font-variant-numeric:tabular-nums;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 10px rgba(200,245,60,.8);}

/* ---------- metrics ---------- */
.metric-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr);margin-top:32px;}
@media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr);gap:20px;}}
.metric-card{
  position:relative;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px 20px;
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease;
}
.metric-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.metric-card:hover{border-color:rgba(200,245,60,.35);transform:translateY(-3px);}
.metric-num{
  font-family:var(--mono);font-size:34px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;transition:color .25s ease;
}
.metric-card:hover .metric-num{color:var(--accent);}
.metric-num .unit{font-size:14px;color:var(--text-2);margin-left:4px;font-weight:500;}
.metric-label{margin-top:8px;font-size:13px;color:var(--text-2);}
.metric-note{margin-top:6px;font-size:12px;color:var(--text-3);}

/* ---------- feature split rows ---------- */
.split-row{
  display:grid;gap:28px;align-items:center;
  padding:36px 0;border-bottom:1px solid var(--line-soft);
}
.split-row:last-child{border-bottom:0;}
@media (min-width:1024px){
  .split-row{grid-template-columns:5fr 7fr;gap:56px;padding:44px 0;}
  .split-row.reverse .split-media{order:2;}
  .split-row.reverse .split-text{order:1;}
}
.split-index{
  font-family:var(--mono);font-size:14px;color:var(--primary-light);
  letter-spacing:.16em;font-weight:700;
}
.split-title{font-size:22px;font-weight:600;margin-top:12px;}
@media (min-width:1024px){.split-title{font-size:22px;}}
.split-text p{margin-top:14px;color:var(--text-2);font-size:16px;}
.pt-list{margin-top:18px;display:grid;gap:10px;}
.pt-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);
  padding:10px 14px;
}
.pt-list li::before{
  content:"";flex:0 0 6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(23,195,217,.7);
}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}

/* ---------- scenario chips ---------- */
.chip-grid{display:grid;gap:14px;grid-template-columns:1fr;margin-top:32px;}
@media (min-width:768px){.chip-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.chip-grid{grid-template-columns:repeat(4,1fr);}}
.chip-card{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;
  transition:border-color .25s ease,transform .25s ease;
}
.chip-card:hover{border-color:rgba(23,195,217,.45);transform:translateY(-3px);}
.chip-card h3{font-size:16px;font-weight:600;}
.chip-card p{margin-top:8px;font-size:14px;color:var(--text-2);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:11px;letter-spacing:.06em;border-radius:999px;font-weight:600;
}
.badge-line{border:1px solid rgba(23,195,217,.5);color:var(--primary-light);}
.badge-solid{background:var(--accent);color:#06130A;}
.badge-soft{background:rgba(255,255,255,.07);color:var(--text-3);border:1px solid var(--line-soft);}

/* ---------- steps ---------- */
.steps{display:grid;gap:16px;margin-top:32px;grid-template-columns:1fr;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  position:relative;padding:24px 20px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.step-num{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  color:var(--accent);font-weight:700;
}
.step h3{font-size:17px;font-weight:600;margin-top:10px;}
.step p{margin-top:8px;font-size:14px;color:var(--text-2);}
.step::after{
  content:"";position:absolute;left:20px;top:0;width:34px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);border-radius:2px;
}

/* ---------- faq ---------- */
.faq-grid{display:grid;gap:32px;}
@media (min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;}}
.faq-aside p{margin-top:16px;color:var(--text-2);font-size:15px;}
.faq-aside .contact-box{
  margin-top:24px;padding:18px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--line);
}
.faq-aside .contact-box strong{color:var(--primary-light);font-weight:600;}
.faq-list{display:flex;flex-direction:column;}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px 20px 16px;background:transparent;border:0;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-light);}
.faq-q .chev{
  flex:0 0 20px;width:20px;height:20px;color:var(--text-3);
  transition:transform .25s ease,color .25s ease;
}
.faq-item{position:relative;}
.faq-item.open .faq-q{color:var(--primary-light);}
.faq-item.open .chev{transform:rotate(180deg);color:var(--accent);}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;
  background:var(--accent);border-radius:2px;
}
.faq-a{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .3s ease,opacity .2s ease;
}
.faq-item.open .faq-a{max-height:420px;opacity:1;}
.faq-a p{padding:0 4px 22px 16px;color:var(--text-2);font-size:15px;}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--ink-800),var(--ink-900) 65%);
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.cta-inner{
  display:grid;gap:24px;align-items:center;
  padding:48px 0;
}
@media (min-width:1024px){.cta-inner{grid-template-columns:7fr 5fr;padding:64px 0;}}
.cta-inner h2{font-size:26px;font-weight:600;}
@media (min-width:1024px){.cta-inner h2{font-size:30px;}}
.cta-inner p{margin-top:12px;color:var(--text-2);font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line-soft);
  padding:56px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,195,217,.5),transparent);
}
.footer-grid{display:grid;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-desc{margin-top:16px;color:var(--text-2);font-size:14px;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.04em;}
.footer-link{
  display:block;padding:6px 0;font-size:14px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--primary-light);transform:translateX(3px);}
.footer-info{font-size:14px;color:var(--text-2);line-height:2;}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);border-radius:999px;padding:8px 16px;font-size:13px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.back-top svg{width:14px;height:14px;}
.back-top:hover{color:var(--accent);border-color:rgba(200,245,60,.4);transform:translateY(-2px);}
@media (max-width:767px){
  .hero-float{position:static;margin-top:16px;left:auto;right:auto;box-shadow:var(--shadow-card);}
  .hero-visual img{aspect-ratio:16/10;}
}

/* roulang page: category3 */
:root{
  --ink-900:#060B16;
  --ink-800:#0B1424;
  --ink-700:#111F33;
  --primary:#17C3D9;
  --primary-deep:#0E8FA6;
  --primary-light:#6DE3F2;
  --accent:#C8F53C;
  --accent-deep:#A6D124;
  --warm:#FF6B3D;
  --text:#E8F1F8;
  --text-2:#9FB2C6;
  --text-3:#6B7F94;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --radius-card:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-hover:0 18px 40px -16px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(200,245,60,.35), 0 10px 30px -8px rgba(200,245,60,.45);
  --mono:ui-monospace,"JetBrains Mono","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(--ink-900);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 480px at 12% -6%, rgba(23,195,217,.16), transparent 62%),
    radial-gradient(760px 420px at 92% 4%, rgba(200,245,60,.09), transparent 60%),
    linear-gradient(180deg,rgba(6,11,22,0) 0%,rgba(6,11,22,.6) 100%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:16px;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(23,195,217,.20),rgba(255,255,255,.03));
  border:1px solid rgba(23,195,217,.35);
}
.brand-mark svg{width:24px;height:24px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--text-3);text-transform:uppercase;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:wrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  opacity:.95;
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-wrap{
  display:flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 6px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  transition:border-color .2s ease,background .2s ease;
}
.search-wrap.open{
  border-color:rgba(23,195,217,.45);
  background:rgba(255,255,255,.05);
}
.search-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:50%;
  color:var(--text-2);
  transition:color .18s ease,background .18s ease;
}
.search-btn:hover{color:var(--primary-light);background:rgba(23,195,217,.12);}
.search-btn svg{width:18px;height:18px;}
.search-input{
  width:0;
  height:32px;
  padding:0;
  border:none;
  background:transparent;
  color:var(--text);
  font-size:14px;
  opacity:0;
  transition:width .26s ease,opacity .26s ease,padding .26s ease;
}
.search-wrap.open .search-input{width:260px;opacity:1;padding:0 8px 0 2px;}
.search-input::placeholder{color:var(--text-3);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .2s ease;}
.btn-primary{
  background:linear-gradient(120deg,var(--accent),var(--accent-deep));
  color:#06130A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 0 0 1px rgba(200,245,60,.4),0 16px 40px -10px rgba(200,245,60,.5);}
.btn-primary:active{transform:translateY(0);filter:brightness(.97);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(23,195,217,.5);
  color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(23,195,217,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary-light);
}
.link-arrow svg{width:15px;height:15px;transition:transform .22s ease;}
.link-arrow:hover svg{transform:translateX(4px);}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  place-items:center;
  color:var(--text);
}
.menu-toggle svg{width:20px;height:20px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(6,11,22,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:74px 24px 28px;
  display:flex;
  flex-direction:column;
  gap:6px;
  transform:translateY(-8px);
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease,transform .24s ease;
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-drawer .drawer-link{
  font-size:20px;
  font-weight:600;
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.mobile-drawer .drawer-link.active{color:var(--accent);}
.mobile-drawer .drawer-cta{margin-top:auto;}
.drawer-close{
  position:absolute;
  top:16px;right:20px;
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  display:grid;place-items:center;
}
.drawer-close svg{width:18px;height:18px;}
body.no-scroll{overflow:hidden;}

/* ============ 通用板块 ============ */
.section{padding:104px 0;position:relative;}
.section--tight{padding:76px 0;}
.section--alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:52px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:24px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(23,195,217,.45);
  color:var(--primary-light);
  font-size:11px;
  letter-spacing:.06em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
h1{font-size:56px;line-height:1.14;font-weight:700;letter-spacing:-.01em;}
h2{font-size:34px;line-height:1.25;font-weight:600;letter-spacing:-.005em;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
.lead{font-size:17px;color:var(--text-2);line-height:1.85;}
.hl{color:var(--primary);}
.hl-accent{color:var(--accent);}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px;max-width:640px;}
.divider-fade{
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.16),rgba(255,255,255,0));
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--primary-light);}
.breadcrumb .sep{color:rgba(255,255,255,.25);}
.breadcrumb .current{color:var(--text-2);}

/* ============ Hero ============ */
.hero{
  padding:52px 0 88px;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.hero-copy h1{max-width:16em;}
.hero-sub{
  margin-top:22px;
  font-size:18px;
  color:var(--text-2);
  max-width:34em;
  line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(23,195,217,.45);
  color:var(--primary-light);
  font-size:11px;
  letter-spacing:.06em;
}
.tag--warm{border-color:rgba(255,107,61,.5);color:var(--warm);}
.tag--accent{background:var(--accent);border-color:var(--accent);color:#06130A;font-weight:700;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-figure img{
  width:100%;
  height:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border-radius:0;
  opacity:.9;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.05),rgba(6,11,22,.72));
}
.hero-card{
  position:absolute;
  left:-28px;
  bottom:34px;
  width:264px;
  padding:20px;
  border-radius:var(--radius-card);
  background:rgba(11,20,36,.82);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-hover);
}
.hero-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.08em;
  margin-bottom:14px;
}
.hero-card-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:9px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.hero-card-row:first-of-type{border-top:none;}
.hero-card-row .mono{color:var(--text);font-weight:700;font-size:14px;}
.hero-card-row .ok{color:var(--accent);}
.hero-glow{
  position:absolute;
  width:340px;height:340px;
  right:-100px;top:-80px;
  background:radial-gradient(circle,rgba(23,195,217,.22),transparent 66%);
  filter:blur(10px);
  pointer-events:none;
}

/* ============ 模块矩阵 ============ */
.module-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.module-card{
  display:flex;
  flex-direction:column;
  min-height:266px;
  padding:26px 24px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease;
  position:relative;
  overflow:hidden;
}
.module-card::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:.75;
}
.module-card:hover{
  transform:translateY(-4px);
  border-color:rgba(200,245,60,.35);
  box-shadow:var(--shadow-hover);
  background:rgba(255,255,255,.075);
}
.module-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.module-num{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.1em;
  color:var(--text-3);
}
.module-icon{
  width:40px;height:40px;
  border-radius:var(--radius-sm);
  display:grid;place-items:center;
  background:rgba(23,195,217,.12);
  border:1px solid rgba(23,195,217,.32);
  color:var(--primary-light);
}
.module-icon svg{width:20px;height:20px;}
.module-card h3{margin-bottom:10px;}
.module-card p{color:var(--text-2);font-size:15px;line-height:1.8;}
.module-foot{
  margin-top:auto;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.module-meta{font-size:12px;color:var(--text-3);letter-spacing:.05em;}

/* ============ 流程时间轴 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.flow::before{
  content:"";
  position:absolute;
  left:0;right:0;top:26px;
  height:1px;
  background:linear-gradient(90deg,rgba(23,195,217,.5),rgba(200,245,60,.4),rgba(255,255,255,.05));
}
.flow-item{position:relative;padding-top:64px;}
.flow-node{
  position:absolute;
  top:14px;left:0;
  width:24px;height:24px;
  border-radius:50%;
  background:var(--ink-900);
  border:2px solid var(--primary);
  display:grid;place-items:center;
}
.flow-node span{
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);
}
.flow-item:nth-child(3) .flow-node{border-color:var(--accent);}
.flow-item:nth-child(3) .flow-node span{background:var(--accent);}
.flow-step{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--text-3);
  margin-bottom:8px;
}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{font-size:14.5px;color:var(--text-2);}

/* ============ 数据指标 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-card{
  padding:24px 22px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
  transition:border-color .22s ease,transform .22s ease;
}
.stat-card:hover{border-color:rgba(23,195,217,.45);transform:translateY(-3px);}
.stat-card::before{
  content:"";
  position:absolute;
  left:0;top:0;
  height:3px;width:56px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.stat-value{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:var(--primary);
  transition:color .22s ease;
}
.stat-card:hover .stat-value{color:var(--accent);}
.stat-value .unit{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;}
.stat-label{margin-top:10px;font-size:13px;color:var(--text-2);}

/* ============ 组合建议 ============ */
.combo-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.combo-card{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  padding:28px;
  transition:border-color .22s ease,transform .22s ease;
}
.combo-card:hover{transform:translateY(-4px);}
.combo-card--primary{
  border-color:rgba(23,195,217,.5);
  background:linear-gradient(160deg,rgba(23,195,217,.10),rgba(255,255,255,.03));
}
.combo-head{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:18px;
}
.combo-head h3{font-size:19px;}
.combo-list{display:flex;flex-direction:column;gap:12px;}
.combo-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.7;
}
.combo-list li svg{width:16px;height:16px;flex-shrink:0;margin-top:6px;}
.check{color:var(--accent);}
.cross{color:var(--text-3);}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-side .lead{margin-top:16px;font-size:15.5px;}
.faq-contact{
  margin-top:26px;
  padding:20px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
}
.faq-contact p{font-size:14px;color:var(--text-2);}
.faq-contact strong{color:var(--text);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(23,195,217,.35);}
.faq-item.open{border-color:rgba(23,195,217,.5);background:rgba(255,255,255,.055);}
.faq-q{
  width:100%;
  min-height:64px;
  padding:18px 22px 18px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:2px;
  background:var(--accent);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q svg{
  width:18px;height:18px;
  flex-shrink:0;
  color:var(--primary-light);
  transition:transform .24s ease;
}
.faq-item.open .faq-q svg{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease,opacity .24s ease;
  opacity:0;
}
.faq-item.open .faq-a{opacity:1;}
.faq-a-inner{
  padding:0 22px 22px 24px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid rgba(23,195,217,.32);
  background:
    linear-gradient(120deg,rgba(11,20,36,.94),rgba(6,11,22,.86)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  padding:56px 52px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:36px;
  align-items:center;
}
.cta-band h2{font-size:30px;}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:16px;max-width:44em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-800);
  padding:76px 0 28px;
  position:relative;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.18),rgba(255,255,255,0));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:30em;line-height:1.85;}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text);margin-bottom:16px;}
.footer-link{
  display:block;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .18s ease,transform .18s ease;
}
.footer-link:hover{color:var(--primary-light);transform:translateX(3px);}
.footer-info{font-size:14px;color:var(--text-2);line-height:2;}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  color:var(--text-2);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.back-top:hover{border-color:rgba(200,245,60,.45);color:var(--accent);transform:translateY(-2px);}
.back-top svg{width:15px;height:15px;}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .main-nav{gap:0;}
  .nav-link{padding:0 9px;font-size:13.5px;}
  .search-wrap.open .search-input{width:180px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .menu-toggle{display:grid;}
  .search-wrap{display:none;}
  .nav-inner{height:60px;}
  h1{font-size:40px;}
  h2{font-size:30px;}
  .section{padding:76px 0;}
  .hero{padding:36px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-card{position:relative;left:0;bottom:0;width:100%;margin-top:18px;}
  .module-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px;}
  .flow::before{display:none;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .combo-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .hero-sub{font-size:16px;margin-top:16px;}
  .hero-actions .btn{width:100%;}
  .module-grid{grid-template-columns:1fr;}
  .module-card{min-height:auto;}
  .flow{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-value{font-size:32px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band h2{font-size:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:15.5px;padding:16px 18px 16px 20px;}
  .faq-a-inner{padding:0 18px 18px 20px;}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr;}
  .brand-sub{display:none;}
}

/* roulang page: category2 */
:root{
  --ink-900:#060B16;
  --ink-800:#0B1424;
  --ink-700:#111F33;
  --primary:#17C3D9;
  --primary-dark:#0E8FA6;
  --primary-light:#6DE3F2;
  --accent:#C8F53C;
  --accent-dark:#A6D124;
  --warm:#FF6B3D;
  --text:#E8F1F8;
  --text-2:#9FB2C6;
  --text-3:#6B7F94;
  --glass:rgba(255,255,255,.055);
  --glass-border:rgba(255,255,255,.10);
  --radius-card:18px;
  --radius-ctrl:12px;
  --radius-img:16px;
  --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lift:0 18px 40px -16px rgba(0,0,0,.75);
  --shell:1240px;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(1200px 620px at 10% -12%, rgba(23,195,217,.16), transparent 62%),
    radial-gradient(900px 520px at 102% 2%, rgba(200,245,60,.07), transparent 58%),
    var(--ink-900);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.no-scroll{overflow:hidden}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px}
@media (max-width:640px){ .shell{padding:0 20px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;height:68px;
  border-bottom:1px solid transparent;
  transition:background-color .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.scrolled{
  background:rgba(6,11,22,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:28px;height:100%}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{display:inline-flex;width:40px;height:40px;flex:none}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--text-3)}
.main-nav{display:flex;align-items:center;gap:24px}
.nav-link{
  position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--accent);transition:width .22s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:12px}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{width:18px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--glass-border);color:var(--text-2);transition:.2s;
}
.search-toggle:hover{color:var(--primary-light);border-color:rgba(23,195,217,.5)}
.search-toggle svg{width:17px;height:17px}
.search-box{width:0;opacity:0;overflow:hidden;transition:width .26s ease,opacity .26s ease}
.search-box.is-open{width:300px;opacity:1}
.search-box input{
  width:100%;height:40px;border-radius:12px;padding:0 14px;
  background:rgba(255,255,255,.05);border:1px solid var(--glass-border);
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,195,217,.16)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform .2s ease,box-shadow .24s ease,background-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:#06130A;
  box-shadow:0 0 0 1px rgba(200,245,60,.35),0 10px 30px -8px rgba(200,245,60,.45);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 0 0 1px rgba(200,245,60,.45),0 16px 40px -8px rgba(200,245,60,.55)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:rgba(23,195,217,.5);color:var(--primary-light);
}
.btn-ghost:hover{background:rgba(23,195,217,.12);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed}
.menu-toggle{
  display:none;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--glass-border);
}
.menu-toggle svg{width:20px;height:20px}
.drawer{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;
  padding:96px 24px 32px;background:rgba(6,11,22,.95);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transform:translateY(-100%);transition:transform .32s ease;visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  font-size:20px;font-weight:600;color:var(--text-2);padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.07);transition:color .2s;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--accent)}
.drawer-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--glass-border);
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.drawer-search input{
  width:100%;height:48px;border-radius:12px;padding:0 16px;font-size:15px;
  background:rgba(255,255,255,.05);border:1px solid var(--glass-border);color:var(--text);
}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:92px 0 84px}
.hero-bg{
  position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:180px;
  background:linear-gradient(180deg,rgba(6,11,22,0) 0%,var(--ink-900) 100%);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs a{color:var(--text-3);transition:color .2s}
.crumbs a:hover{color:var(--primary-light)}
.crumbs .cur{color:var(--text-2)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:11px;letter-spacing:.06em;font-weight:600;
}
.badge-primary{border:1px solid rgba(23,195,217,.55);color:var(--primary-light);background:rgba(23,195,217,.08)}
.badge-accent{background:var(--accent);color:#06130A}
.hero-copy .badge{margin-bottom:20px}
.hero-copy h1{
  margin:0 0 20px;font-size:clamp(30px,4.2vw,50px);line-height:1.24;font-weight:700;letter-spacing:-.01em;
}
.hero-copy h1 .hl{color:var(--primary-light)}
.hero-lead{margin:0 0 30px;font-size:18px;line-height:1.8;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{display:flex;flex-wrap:wrap;gap:30px;margin:36px 0 0;padding:0;list-style:none}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;color:var(--primary-light);line-height:1.3;
}
.hero-stats span{font-size:13px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:460px;object-fit:cover;border-radius:var(--radius-img);
  border:1px solid rgba(255,255,255,.10);box-shadow:var(--shadow-lift);
}
.float-card{
  position:absolute;right:-18px;bottom:-26px;width:252px;padding:18px 20px;
  border-radius:var(--radius-card);box-shadow:var(--shadow-lift);
}
.fc-label{display:block;font-size:11px;letter-spacing:.1em;color:var(--text-3);margin-bottom:10px}
.fc-row{display:flex;justify-content:space-between;align-items:center;margin:0;font-size:13px;color:var(--text-2);padding:4px 0}
.fc-row strong{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--text)}
.fc-row strong.ok{color:var(--accent)}

/* ---------- sections ---------- */
.section{padding:96px 0;position:relative}
.section + .section::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.12) 22%,rgba(255,255,255,.12) 78%,transparent);
}
.sec-head{max-width:680px;margin-bottom:48px}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--primary);
  font-family:var(--mono);margin-bottom:14px;
}
.sec-head h2{margin:0 0 14px;font-size:clamp(26px,2.6vw,34px);line-height:1.32;font-weight:600}
.sec-head p{margin:0;font-size:16px;color:var(--text-2);line-height:1.85}
.glass{
  background:var(--glass);border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}

/* ---------- timeline ---------- */
.timeline{position:relative;margin:0;padding:0 0 0 46px;list-style:none}
.timeline::before{
  content:"";position:absolute;left:15px;top:12px;bottom:22px;width:1px;
  background:linear-gradient(180deg,rgba(23,195,217,.65) 0%,rgba(23,195,217,.22) 62%,rgba(23,195,217,0) 100%);
}
.tl-item{position:relative;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:10px;width:13px;height:13px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--primary);
}
.tl-item.current::before{
  background:var(--accent);border-color:var(--accent);
  box-shadow:0 0 0 6px rgba(200,245,60,.14);
}
.tl-num{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.16em;color:var(--text-3);margin-bottom:8px;
}
.tl-item.current .tl-num{color:var(--accent)}
.tl-item h3{margin:0 0 10px;font-size:20px;font-weight:600;line-height:1.4}
.tl-item > p{margin:0 0 14px;color:var(--text-2);max-width:760px}
.tl-points{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.tl-points li{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:12px;
  background:rgba(23,195,217,.07);border:1px solid rgba(23,195,217,.28);
  font-size:13.5px;color:var(--text-2);
}
.tl-points li::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);flex:none;
}

/* ---------- security cards ---------- */
.sec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sec-card{
  position:relative;padding:28px 26px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.sec-card::after{
  content:"";position:absolute;top:0;left:26px;width:56px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.sec-card:hover{transform:translateY(-4px);border-color:rgba(23,195,217,.45);box-shadow:var(--shadow-lift)}
.card-index{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12px;letter-spacing:.16em;color:var(--primary);margin-bottom:14px;
}
.sec-card h3{margin:0 0 10px;font-size:20px;font-weight:600}
.sec-card p{margin:0;color:var(--text-2);font-size:15px}
.sec-card ul{margin:12px 0 0;padding:0;list-style:none}
.sec-card ul li{font-size:13.5px;color:var(--text-3);padding:4px 0 4px 16px;position:relative}
.sec-card ul li::before{
  content:"";position:absolute;left:0;top:13px;width:6px;height:1.5px;background:var(--primary);
}

/* ---------- compare ---------- */
.compare{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--glass-border)}
.cmp-head{display:grid;grid-template-columns:1fr 1fr;background:rgba(255,255,255,.04)}
.cmp-head span{padding:16px 24px;font-size:13px;letter-spacing:.1em;color:var(--text-3);font-family:var(--mono)}
.cmp-head span:last-child{color:var(--primary-light);border-left:1px solid var(--glass-border)}
.cmp-row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(255,255,255,.07)}
.cmp-cell{padding:20px 24px;font-size:15px;line-height:1.75}
.cmp-cell.before{color:var(--text-3)}
.cmp-cell.after{
  color:var(--text);border-left:1px solid var(--glass-border);
  background:rgba(23,195,217,.05);
  display:flex;align-items:flex-start;gap:10px;
}
.cmp-cell.after em{
  font-style:normal;color:var(--accent);font-size:14px;line-height:1.6;flex:none;
}
.cmp-tag{display:none}
.compare-foot{margin-top:26px}

/* ---------- note list ---------- */
.note-list{margin:0;padding:0;list-style:none;border-top:1px solid rgba(255,255,255,.08)}
.note-list li{
  display:grid;grid-template-columns:86px 1fr;gap:24px;padding:26px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);transition:background-color .2s;
}
.note-list li:hover{background:rgba(255,255,255,.03)}
.note-idx{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;
  letter-spacing:.16em;color:var(--primary);padding-top:5px;
}
.note-list h3{margin:0 0 8px;font-size:19px;font-weight:600}
.note-list p{margin:0;color:var(--text-2);font-size:15px;max-width:820px}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside h2{margin:0 0 14px;font-size:clamp(24px,2.4vw,32px);line-height:1.34;font-weight:600}
.faq-aside p{margin:0 0 22px;color:var(--text-2);font-size:15px}
.faq-panel{display:flex;flex-direction:column;gap:12px}
.faq-item{
  position:relative;padding:4px 22px 4px 20px;border-radius:var(--radius-ctrl);
  background:rgba(255,255,255,.045);border:1px solid var(--glass-border);
  transition:border-color .22s ease,background-color .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:transparent;transition:background-color .2s ease;
}
.faq-item[open]{border-color:rgba(200,245,60,.35);background:rgba(255,255,255,.06)}
.faq-item[open]::before{background:var(--accent)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{width:16px;height:16px;flex:none;color:var(--primary-light);transition:transform .24s ease}
.faq-item[open] summary svg{transform:rotate(180deg)}
.faq-body{padding:0 0 20px;color:var(--text-2);font-size:15px;line-height:1.9;animation:fadeIn .22s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ---------- cta ---------- */
.cta-section{background:var(--ink-800)}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.cta-grid h2{margin:0 0 16px;font-size:clamp(24px,2.4vw,32px);line-height:1.34;font-weight:600}
.cta-points{margin:0;padding:0;list-style:none}
.cta-points li{
  position:relative;padding:12px 0 12px 24px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.cta-points li:last-child{border-bottom:0}
.cta-points li::before{
  content:"";position:absolute;left:0;top:22px;width:8px;height:8px;border-radius:2px;
  background:var(--primary);
}
.access-form{padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;color:var(--text-2);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--glass-border);
  color:var(--text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,195,217,.18);
}
.field select option{background:var(--ink-800);color:var(--text)}
.form-note{grid-column:1 / -1;font-size:12.5px;color:var(--text-3);margin:0;line-height:1.7}
.form-msg{grid-column:1 / -1;font-size:13.5px;color:var(--accent);min-height:20px;margin:0}

/* ---------- footer ---------- */
.site-footer{position:relative;padding:72px 0 28px;background:var(--ink-800);border-top:1px solid rgba(255,255,255,.07)}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,195,217,.55),rgba(200,245,60,.32),transparent);
}
.site-footer > .container{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{margin:0;font-size:14px;color:var(--text-2);line-height:1.85;max-width:360px}
.footer-title{margin:0 0 16px;font-size:15px;font-weight:600;color:var(--text)}
.footer-link{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary-light);transform:translateX(3px)}
.footer-info{margin:0;font-size:14px;color:var(--text-2);line-height:2.1}
.footer-info strong{color:var(--text);font-weight:600}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--text-3);
}
.back-top{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  color:var(--text-2);font-size:13px;transition:.2s;
}
.back-top:hover{border-color:rgba(200,245,60,.5);color:var(--accent)}
.back-top svg{width:14px;height:14px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .main-nav{gap:18px}
  .nav-link{font-size:14px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .header-actions .btn{display:none}
  .search-wrap{display:none}
  .menu-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual img{height:340px}
  .float-card{position:static;width:100%;margin-top:16px}
  .section{padding:72px 0}
  .faq-grid{grid-template-columns:1fr;gap:36px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .page-hero{padding:56px 0 60px}
  .hero-stats{gap:20px}
  .sec-grid{grid-template-columns:1fr}
  .compare{border-radius:14px}
  .cmp-head{display:none}
  .cmp-row{grid-template-columns:1fr}
  .cmp-cell{padding:18px 20px}
  .cmp-cell.after{border-left:0;border-top:1px solid rgba(255,255,255,.08)}
  .cmp-cell.before{border-top:1px solid rgba(255,255,255,.08)}
  .cmp-tag{
    display:inline-block;font-size:11px;letter-spacing:.08em;color:var(--text-3);
    border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:1px 8px;margin-right:8px;
  }
  .cmp-cell.after .cmp-tag{color:var(--accent);border-color:rgba(200,245,60,.4);margin-right:0;margin-bottom:8px}
  .cmp-cell.after{flex-direction:column;align-items:flex-start}
  .note-list li{grid-template-columns:1fr;gap:8px;padding:22px 2px}
  .note-idx{padding-top:0}
  .access-form{grid-template-columns:1fr;padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:36px}
}
@media (max-width:520px){
  .hero-visual img{height:250px}
  .hero-actions .btn{width:100%}
  .drawer{padding:88px 20px 28px}
}
@media (max-width:640px){
  .timeline{padding-left:28px}
  .timeline::before{left:9px}
  .tl-item::before{left:-25px}
}

/* roulang page: category5 */
:root{
    --ink-900:#060B16;
    --ink-800:#0B1424;
    --ink-700:#111F33;
    --primary:#17C3D9;
    --primary-deep:#0E8FA6;
    --primary-light:#6DE3F2;
    --accent:#C8F53C;
    --accent-deep:#A6D124;
    --warm:#FF6B3D;
    --text:#E8F1F8;
    --text-2:#9FB2C6;
    --text-3:#6B7F94;
    --line:rgba(255,255,255,.10);
    --line-soft:rgba(255,255,255,.06);
    --glass:rgba(255,255,255,.055);
    --glass-2:rgba(255,255,255,.04);
    --r-card:18px;
    --r-ctrl:12px;
    --r-pill:999px;
    --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-float:0 18px 40px -16px rgba(0,0,0,.75);
    --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    --maxw:1240px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:
      radial-gradient(900px 520px at 82% -8%, rgba(23,195,217,.14), transparent 62%),
      radial-gradient(700px 420px at 6% 4%, rgba(200,245,60,.07), transparent 60%),
      var(--ink-900);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.78;
    letter-spacing:.005em;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:600;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
  ::selection{background:rgba(200,245,60,.28);color:#fff;}

  .container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){ .container{padding:0 32px;} }

  .mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
  .tnum{font-variant-numeric:tabular-nums;}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background-color .24s ease,border-color .24s ease,backdrop-filter .24s ease;
  }
  .site-header.is-scrolled{
    background:rgba(6,11,22,.72);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .header-inner{
    height:68px;display:flex;align-items:center;gap:24px;
  }
  @media (max-width:767px){ .header-inner{height:56px;gap:12px;} }

  .brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;border-radius:12px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,rgba(23,195,217,.20),rgba(200,245,60,.10));
    border:1px solid rgba(23,195,217,.35);
  }
  .brand-mark svg{width:24px;height:24px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;}
  .brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--text-3);}
  @media (max-width:400px){ .brand-sub{display:none;} }

  .main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
  .nav-link{
    position:relative;display:inline-block;
    padding:9px 12px;border-radius:10px;
    font-size:14.5px;color:var(--text-2);white-space:nowrap;
    transition:color .2s ease,background-color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;width:18px;
    background:var(--accent);border-radius:2px;opacity:0;transform:translateX(-4px);
    transition:opacity .2s ease,transform .2s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
  .nav-link.active{color:#fff;}
  .nav-link.active::after{opacity:1;transform:translateX(0);}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
  .search-wrap{position:relative;display:none;}
  @media (min-width:1200px){ .search-wrap{display:block;} }
  .search-input{
    width:320px;height:42px;padding:0 14px 0 40px;
    background:var(--glass-2);border:1px solid var(--line);
    border-radius:var(--r-ctrl);font-size:14px;color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .search-input::placeholder{color:var(--text-3);}
  .search-input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(23,195,217,.18);
    background:rgba(23,195,217,.06);
  }
  .search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--text-3);pointer-events:none;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-pill);
    font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease,color .2s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--accent),var(--accent-deep));
    color:#06130A;font-weight:700;
    box-shadow:0 0 0 1px rgba(200,245,60,.35),0 10px 30px -8px rgba(200,245,60,.45);
  }
  .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 0 0 1px rgba(200,245,60,.45),0 18px 40px -8px rgba(200,245,60,.5);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:var(--glass-2);border-color:rgba(23,195,217,.5);color:var(--primary-light);
  }
  .btn-ghost:hover{background:rgba(23,195,217,.12);border-color:var(--primary);color:#fff;transform:translateY(-2px);}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
  .btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;filter:none;}
  .btn-link{
    display:inline-flex;align-items:center;gap:8px;color:var(--primary-light);
    font-size:14px;font-weight:600;border:0;background:none;cursor:pointer;padding:0;
  }
  .btn-link svg{width:16px;height:16px;transition:transform .2s ease;}
  .btn-link:hover{color:var(--accent);}
  .btn-link:hover svg{transform:translateX(4px);}

  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--r-ctrl);
    background:var(--glass-2);border:1px solid var(--line);cursor:pointer;
  }
  .nav-toggle svg{width:20px;height:20px;color:var(--text);}
  @media (max-width:1099px){
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-actions .btn-primary{display:none;}
  }

  .drawer{
    position:fixed;inset:0;z-index:120;display:none;
    background:rgba(6,11,22,.94);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    flex-direction:column;padding:20px;
  }
  .drawer.is-open{display:flex;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;}
  .drawer-close{
    width:44px;height:44px;border-radius:var(--r-ctrl);background:var(--glass-2);
    border:1px solid var(--line);cursor:pointer;display:flex;align-items:center;justify-content:center;
  }
  .drawer-close svg{width:20px;height:20px;}
  .drawer-links{margin-top:28px;display:flex;flex-direction:column;gap:6px;}
  .drawer-links a{
    font-size:20px;font-weight:600;color:var(--text);padding:14px 12px;border-radius:12px;
    border-bottom:1px solid var(--line-soft);
  }
  .drawer-links a.active{color:var(--accent);}
  .drawer-links a:hover{background:rgba(255,255,255,.05);}
  .drawer-search{margin-top:22px;}
  .drawer-foot{margin-top:auto;padding-top:20px;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;padding:100px 0 72px;
    border-bottom:1px solid var(--line-soft);
    background-image:linear-gradient(180deg,rgba(6,11,22,.72),rgba(6,11,22,.94)),url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
  }
  @media (min-width:1024px){ .hero{padding:132px 0 96px;} }
  .hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
  @media (min-width:1024px){ .hero-grid{grid-template-columns:7fr 5fr;gap:56px;} }

  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
  .breadcrumb a:hover{color:var(--primary-light);}
  .breadcrumb span.sep{color:var(--text-3);}

  .hero-title{
    font-size:40px;font-weight:700;line-height:1.2;letter-spacing:-.015em;
  }
  @media (min-width:768px){ .hero-title{font-size:48px;} }
  @media (min-width:1024px){ .hero-title{font-size:56px;} }
  .hero-title .hl-primary{color:var(--primary);}
  .hero-title .hl-accent{color:var(--accent);}
  .hero-lead{margin-top:18px;font-size:17px;color:var(--text-2);max-width:36em;line-height:1.85;}
  @media (min-width:768px){ .hero-lead{font-size:19px;} }
  .hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
  .hero-metrics{margin-top:34px;display:flex;flex-wrap:wrap;gap:26px;font-size:14px;color:var(--text-2);}
  .hero-metrics b{display:block;font-family:var(--mono);font-size:20px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}

  .hero-visual{position:relative;}
  .hero-figure{
    position:relative;border-radius:16px;overflow:hidden;
    border:1px solid var(--line);box-shadow:var(--shadow-float);
    aspect-ratio:4/5;background:var(--ink-700);
  }
  @media (min-width:1024px){ .hero-figure{aspect-ratio:1/1;} }
  .hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.92;}
  .hero-float{
    position:absolute;left:-8px;bottom:-18px;right:12px;
    background:rgba(11,20,36,.82);
    border:1px solid rgba(23,195,217,.32);
    border-radius:16px;padding:16px 18px;
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:var(--shadow-float);
  }
  @media (min-width:1024px){ .hero-float{left:auto;right:-22px;bottom:26px;width:250px;} }
  .hero-float .row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-2);}
  .hero-float .row + .row{margin-top:9px;padding-top:9px;border-top:1px solid var(--line-soft);}
  .hero-float .val{font-family:var(--mono);font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;}

  /* ---------- Sections ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){ .section{padding:72px 0;} }
  @media (min-width:1024px){ .section{padding:104px 0;} }
  .section-alt{background:var(--ink-800);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
  .section-eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
    color:var(--primary);text-transform:uppercase;font-weight:600;margin-bottom:12px;
  }
  .section-eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px;}
  .section-title{font-size:30px;font-weight:600;}
  @media (min-width:768px){ .section-title{font-size:34px;} }
  .section-sub{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:52em;}

  /* ---------- Stats ---------- */
  .stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  @media (min-width:1024px){ .stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;} }
  .stat-card{
    position:relative;padding:22px 20px 20px;border-radius:var(--r-card);
    background:var(--glass);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  }
  .stat-card::before{
    content:"";position:absolute;top:0;left:20px;width:44px;height:3px;border-radius:3px;
    background:linear-gradient(90deg,var(--primary),var(--accent));
  }
  .stat-card:hover{border-color:rgba(200,245,60,.35);transform:translateY(-4px);box-shadow:var(--shadow-float);}
  .stat-value{
    font-family:var(--mono);font-size:34px;font-weight:700;color:var(--primary);
    font-variant-numeric:tabular-nums;line-height:1.1;transition:color .24s ease;
  }
  @media (min-width:1024px){ .stat-value{font-size:40px;} }
  .stat-card:hover .stat-value{color:var(--accent);}
  .stat-unit{font-size:14px;color:var(--text-2);margin-left:4px;font-family:inherit;}
  .stat-label{margin-top:8px;font-size:13px;color:var(--text-3);}

  /* ---------- Timeline / Log list ---------- */
  .log-layout{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:1024px){ .log-layout{grid-template-columns:8fr 4fr;gap:40px;align-items:start;} }

  .log-list{position:relative;padding-left:26px;}
  .log-list::before{
    content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;
    background:linear-gradient(180deg,var(--primary),rgba(23,195,217,.08));
  }
  @media (max-width:767px){ .log-list{padding-left:20px;} .log-list::before{left:3px;} }

  .log-item{
    position:relative;padding:20px 22px;border-radius:var(--r-card);
    background:var(--glass);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  }
  .log-item + .log-item{margin-top:18px;}
  .log-item:hover{border-color:rgba(23,195,217,.45);transform:translateY(-4px);box-shadow:var(--shadow-float);}
  .log-item::before{
    content:"";position:absolute;left:-26px;top:28px;width:11px;height:11px;border-radius:50%;
    background:var(--ink-900);border:2px solid var(--primary);
  }
  .log-item.is-current::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 4px rgba(200,245,60,.16);}
  @media (max-width:767px){ .log-item::before{left:-20px;} }

  .log-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;}
  .log-date{font-family:var(--mono);font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
  .log-ver{font-family:var(--mono);font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;}
  .log-title{font-size:20px;font-weight:600;}
  .log-text{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.85;}
  .log-points{margin-top:14px;display:grid;gap:8px;}
  .log-points li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);}
  .log-points li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;
    background:var(--primary);transform:rotate(45deg);
  }
  .log-foot{margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;}

  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:var(--r-pill);
    font-size:11px;font-weight:600;letter-spacing:.06em;white-space:nowrap;
  }
  .badge-update{background:var(--accent);color:#06130A;}
  .badge-notice{color:var(--primary-light);border:1px solid rgba(23,195,217,.5);background:rgba(23,195,217,.08);}
  .badge-maintain{color:var(--warm);border:1px solid rgba(255,107,61,.5);background:rgba(255,107,61,.08);}
  .badge-time{color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);}

  /* ---------- Side card ---------- */
  .side-stack{display:grid;gap:20px;}
  @media (min-width:1024px){ .side-stack{position:sticky;top:96px;} }
  .side-card{
    border-radius:var(--r-card);overflow:hidden;
    background:var(--glass);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
  }
  .side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .side-body{padding:20px;}
  .side-body h3{font-size:18px;font-weight:600;}
  .side-body p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8;}
  .side-list{margin-top:14px;display:grid;gap:10px;}
  .side-list li{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-2);}
  .side-list li svg{width:15px;height:15px;flex:0 0 15px;margin-top:4px;color:var(--accent);}

  /* ---------- Flow ---------- */
  .flow-grid{display:grid;grid-template-columns:1fr;gap:18px;}
  @media (min-width:768px){ .flow-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;} }
  .flow-card{
    position:relative;padding:26px 22px;border-radius:var(--r-card);
    background:var(--ink-700);border:1px solid var(--line);
    transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  }
  .flow-card:hover{border-color:rgba(23,195,217,.45);transform:translateY(-4px);box-shadow:var(--shadow-float);}
  .flow-num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.1em;}
  .flow-card h3{margin-top:14px;font-size:19px;font-weight:600;}
  .flow-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.85;}

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr;gap:28px;}
  @media (min-width:1024px){ .faq-grid{grid-template-columns:4fr 8fr;gap:48px;align-items:start;} }
  .faq-aside p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;}
  .faq-mail{
    margin-top:20px;display:inline-flex;align-items:center;gap:10px;
    padding:12px 16px;border-radius:var(--r-ctrl);
    background:var(--glass-2);border:1px solid var(--line);font-size:14px;color:var(--primary-light);
  }
  .faq-item{border-bottom:1px solid var(--line-soft);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px 20px 14px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:16.5px;font-weight:600;color:var(--text);position:relative;
    transition:color .2s ease;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;border-radius:2px;
    background:var(--accent);opacity:0;transition:opacity .2s ease;
  }
  .faq-item.is-open .faq-q::before{opacity:1;}
  .faq-q:hover{color:var(--primary-light);}
  .faq-q svg{width:18px;height:18px;flex:0 0 18px;color:var(--text-3);transition:transform .24s ease,color .24s ease;}
  .faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--accent);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a-inner{padding:0 40px 22px 14px;font-size:15px;color:var(--text-2);line-height:1.9;opacity:0;transition:opacity .2s ease;}
  .faq-item.is-open .faq-a-inner{opacity:1;}

  /* ---------- CTA / Form ---------- */
  .cta-band{
    border-radius:22px;padding:34px 26px;
    background:linear-gradient(135deg,rgba(23,195,217,.14),rgba(200,245,60,.07));
    border:1px solid rgba(23,195,217,.3);
    box-shadow:var(--shadow-float);
  }
  @media (min-width:1024px){ .cta-band{padding:48px 52px;} }
  .cta-grid{display:grid;grid-template-columns:1fr;gap:30px;}
  @media (min-width:1024px){ .cta-grid{grid-template-columns:7fr 5fr;gap:44px;align-items:center;} }
  .cta-band h2{font-size:26px;font-weight:600;}
  @media (min-width:768px){ .cta-band h2{font-size:32px;} }
  .cta-band p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85;}

  .subscribe-form{display:flex;flex-direction:column;gap:12px;}
  .field-label{font-size:13px;color:var(--text-2);margin-bottom:6px;display:block;}
  .input{
    width:100%;height:48px;padding:0 14px;border-radius:var(--r-ctrl);
    background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
    font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .input::placeholder{color:var(--text-3);}
  .input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(23,195,217,.18);
    background:rgba(23,195,217,.06);
  }
  .form-note{font-size:12px;color:var(--text-3);line-height:1.7;}
  .form-tip{font-size:13px;color:var(--warm);display:none;}
  .form-tip.show{display:block;}

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--ink-800);
    border-top:1px solid var(--line-soft);
    padding:56px 0 24px;margin-top:0;
  }
  @media (min-width:1024px){ .site-footer{padding:72px 0 28px;} }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
  @media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;} }
  .footer-brand{display:flex;align-items:center;gap:11px;}
  .footer-desc{margin-top:16px;font-size:14px;color:var(--text-2);line-height:1.85;max-width:34em;}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:16px;}
  .footer-link{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
  .footer-link:hover{color:var(--primary-light);}
  .footer-info{font-size:14px;color:var(--text-2);line-height:2;}
  .footer-info strong{color:var(--text);font-weight:600;}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line-soft);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
    font-size:13px;color:var(--text-3);
  }
  .back-top{
    display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
    border-radius:var(--r-pill);background:var(--glass-2);border:1px solid var(--line);
    color:var(--text-2);font-size:13px;cursor:pointer;
    transition:border-color .2s ease,color .2s ease,transform .2s ease;
  }
  .back-top svg{width:15px;height:15px;}
  .back-top:hover{color:var(--accent);border-color:rgba(200,245,60,.4);transform:translateY(-2px);}

  .fade-line{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);}

/* roulang page: category4 */
:root{
    --ink-900:#060B16;
    --ink-800:#0B1424;
    --ink-700:#111F33;
    --primary:#17C3D9;
    --primary-dark:#0E8FA6;
    --primary-light:#6DE3F2;
    --accent:#C8F53C;
    --accent-dark:#A6D124;
    --warm:#FF6B3D;
    --text:#E8F1F8;
    --text-2:#9FB2C6;
    --text-3:#6B7F94;
    --glass:rgba(255,255,255,.055);
    --glass-strong:rgba(255,255,255,.075);
    --glass-border:rgba(255,255,255,.10);
    --line:rgba(255,255,255,.08);
    --radius-card:18px;
    --radius-sm:12px;
    --radius-pill:999px;
    --shadow-card:0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-hover:0 18px 40px -16px rgba(0,0,0,.75);
    --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }

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

  html{scroll-behavior:smooth;}

  body{
    margin:0;
    background:var(--ink-900);
    color:var(--text);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background:
      radial-gradient(900px 520px at 12% -8%,rgba(23,195,217,.14),transparent 62%),
      radial-gradient(760px 460px at 96% 6%,rgba(200,245,60,.07),transparent 60%);
    z-index:0;
  }

  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:600;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 20px;
    position:relative;
    z-index:1;
  }

  .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:transparent;
    transition:background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
    border-bottom:1px solid transparent;
  }
  .site-header.scrolled{
    background:rgba(6,11,22,.72);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    height:68px;
    display:flex;
    align-items:center;
    gap:20px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:40px;height:40px;
    display:flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:linear-gradient(145deg,rgba(23,195,217,.18),rgba(200,245,60,.08));
    border:1px solid rgba(23,195,217,.28);
  }
  .brand-mark svg{width:26px;height:26px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-main{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);}
  .brand-sub{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--text-3);}

  .main-nav{display:flex;align-items:center;gap:2px;margin-left:8px;}
  .nav-link{
    position:relative;
    padding:9px 12px;
    font-size:14px;
    color:var(--text-2);
    border-radius:10px;
    transition:color .2s ease,background .2s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
  .nav-link.active{color:var(--text);}
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:50%;
    transform:translateX(-50%);
    bottom:1px;
    width:18px;height:2px;
    background:var(--accent);
    border-radius:2px;
    box-shadow:0 0 10px rgba(200,245,60,.7);
  }
  .nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

  .search-box{position:relative;display:flex;align-items:center;}
  .search-box input{
    width:0;
    opacity:0;
    padding:0;
    height:40px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.04);
    border-radius:var(--radius-pill);
    color:var(--text);
    font-size:14px;
    transition:width .28s ease,opacity .22s ease,padding .28s ease;
  }
  .search-box input::placeholder{color:var(--text-3);}
  .search-box.expanded input{width:320px;opacity:1;padding:0 44px 0 18px;}
  .search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(23,195,217,.18);}
  .search-toggle{
    width:40px;height:40px;
    display:flex;align-items:center;justify-content:center;
    border-radius:50%;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.04);
    color:var(--text-2);
    transition:.2s ease;
    position:absolute;
    right:0;
  }
  .search-box.expanded .search-toggle{background:rgba(23,195,217,.14);color:var(--primary-light);border-color:rgba(23,195,217,.4);}
  .search-toggle:hover{color:var(--primary-light);border-color:rgba(23,195,217,.5);}
  .search-toggle svg{width:18px;height:18px;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border:1px solid transparent;
    border-radius:var(--radius-pill);
    font-size:15px;
    font-weight:600;
    padding:13px 26px;
    min-height:44px;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
    cursor:pointer;
    white-space:nowrap;
  }
  .btn svg{width:16px;height:16px;transition:transform .22s ease;}
  .btn-primary{
    background:linear-gradient(120deg,var(--accent),var(--accent-dark));
    color:#06130A;
    font-weight:700;
    box-shadow:0 0 0 1px rgba(200,245,60,.35),0 10px 30px -8px rgba(200,245,60,.45);
  }
  .btn-primary:hover{
    transform:translateY(-2px);
    filter:brightness(1.05);
    box-shadow:0 0 0 1px rgba(200,245,60,.5),0 16px 40px -8px rgba(200,245,60,.55);
  }
  .btn-ghost{
    background:rgba(255,255,255,.03);
    border-color:rgba(23,195,217,.5);
    color:var(--primary-light);
  }
  .btn-ghost:hover{background:rgba(23,195,217,.12);transform:translateY(-2px);}
  .btn-ghost:hover svg{transform:translateX(4px);}
  .btn-link{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--primary-light);font-size:14px;font-weight:600;
    padding:4px 0;background:none;border:0;
  }
  .btn-link svg{width:16px;height:16px;transition:transform .22s ease;}
  .btn-link:hover svg{transform:translateX(5px);}
  .btn-sm{padding:10px 20px;font-size:14px;min-height:40px;}
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
  .btn:disabled{opacity:.45;box-shadow:none;transform:none;}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border-radius:12px;
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.04);
    color:var(--text);
  }
  .nav-toggle svg{width:22px;height:22px;}

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed;
    inset:0;
    z-index:80;
    background:rgba(6,11,22,.94);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    display:flex;
    flex-direction:column;
    padding:20px;
    transform:translateY(-100%);
    opacity:0;
    visibility:hidden;
    transition:transform .32s ease,opacity .32s ease,visibility .32s;
  }
  .drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;}
  .drawer-close{
    width:44px;height:44px;display:flex;align-items:center;justify-content:center;
    border-radius:12px;border:1px solid var(--glass-border);background:rgba(255,255,255,.04);color:var(--text);
  }
  .drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:28px;flex:1;}
  .drawer-nav a{
    font-size:20px;font-weight:500;color:var(--text-2);
    padding:14px 12px;border-radius:14px;border-bottom:1px solid rgba(255,255,255,.05);
  }
  .drawer-nav a.active{color:var(--accent);background:rgba(200,245,60,.06);}
  .drawer-cta{padding-top:16px;}
  .drawer-cta .btn{width:100%;}

  /* ============ Hero ============ */
  .page-hero{
    position:relative;
    padding:64px 0 72px;
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:linear-gradient(180deg,rgba(6,11,22,.86),rgba(6,11,22,.96)),url("/assets/images/backpic/back-2.png");
    background-size:cover;
    background-position:center;
    opacity:.55;
    z-index:0;
  }
  .hero-split{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:56px;
    align-items:center;
    position:relative;
    z-index:1;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:22px;
  }
  .breadcrumb a:hover{color:var(--primary-light);}
  .breadcrumb span.sep{color:rgba(255,255,255,.2);}

  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:26px;
    padding:0 12px;
    border-radius:var(--radius-pill);
    border:1px solid rgba(23,195,217,.45);
    color:var(--primary-light);
    font-size:11px;
    letter-spacing:.06em;
    margin-bottom:20px;
  }
  .hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;box-shadow:0 0 8px rgba(200,245,60,.9);}

  .page-hero h1{
    font-size:40px;
    font-weight:700;
    line-height:1.24;
    letter-spacing:-.01em;
  }
  .page-hero h1 em{font-style:normal;color:var(--primary-light);}
  .hero-lead{
    margin-top:20px;
    font-size:17px;
    color:var(--text-2);
    max-width:620px;
    line-height:1.85;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-meta{
    display:flex;
    flex-wrap:wrap;
    gap:26px;
    margin-top:34px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .hero-meta-item{display:flex;flex-direction:column;gap:2px;}
  .hero-meta-item b{font-size:20px;font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--accent);font-weight:700;}
  .hero-meta-item span{font-size:13px;color:var(--text-3);}

  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;
    aspect-ratio:1/1;
    object-fit:cover;
    border-radius:16px;
    border:1px solid var(--glass-border);
    box-shadow:var(--shadow-card);
  }
  .hero-float{
    position:absolute;
    left:-18px;
    bottom:-22px;
    width:min(300px,88%);
    padding:18px 20px;
    border-radius:16px;
    background:rgba(11,20,36,.82);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--glass-border);
    box-shadow:var(--shadow-hover);
  }
  .hero-float-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:10px;}
  .hero-float-row{
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--text-2);
    padding:7px 0;
    border-bottom:1px dashed rgba(255,255,255,.07);
  }
  .hero-float-row:last-child{border-bottom:0;}
  .hero-float-row b{font-family:var(--font-mono);color:var(--primary-light);font-weight:600;}

  /* ============ 通用板块 ============ */
  .section{padding:96px 0;position:relative;}
  .section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:760px;margin-bottom:48px;}
  .section-label{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.14em;color:var(--primary);
    font-family:var(--font-mono);
    margin-bottom:14px;
  }
  .section-label::before{content:"";width:22px;height:1px;background:var(--primary);display:block;}
  .section h2{font-size:30px;font-weight:600;}
  .section-head p{margin-top:14px;color:var(--text-2);font-size:16px;}

  /* 数据卡 */
  .stat-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
  }
  .stat-card{
    position:relative;
    overflow:hidden;
    padding:24px 22px 22px;
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--glass-border);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
  }
  .stat-card::before{
    content:"";
    position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,var(--primary),var(--accent));
    opacity:.85;
  }
  .stat-card:hover{border-color:rgba(200,245,60,.35);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .stat-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;color:var(--primary-light);transition:color .24s ease;line-height:1.15;}
  .stat-card:hover .stat-num{color:var(--accent);}
  .stat-num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px;font-family:inherit;}
  .stat-label{margin-top:8px;font-size:13px;color:var(--text-3);}
  .stat-desc{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:14px;color:var(--text-2);}

  /* 锚点索引 */
  .anchor-bar{
    display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;
  }
  .anchor-chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 16px;
    border-radius:var(--radius-pill);
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.035);
    color:var(--text-2);
    font-size:13px;
    transition:.22s ease;
  }
  .anchor-chip b{font-family:var(--font-mono);color:var(--primary);font-weight:600;}
  .anchor-chip:hover{color:var(--text);border-color:rgba(23,195,217,.5);background:rgba(23,195,217,.1);transform:translateY(-2px);}

  /* ============ 分组问答清单 ============ */
  .qa-group{
    display:grid;
    grid-template-columns:260px 1fr;
    gap:48px;
    padding:44px 0;
    border-top:1px solid var(--line);
  }
  .qa-group:first-of-type{border-top:0;padding-top:0;}
  .qa-group-head{position:relative;}
  .qa-group-num{
    font-family:var(--font-mono);
    font-size:13px;
    color:var(--accent);
    letter-spacing:.1em;
    margin-bottom:12px;
    display:block;
  }
  .qa-group-head h3{font-size:20px;color:var(--text);}
  .qa-group-head p{margin-top:12px;font-size:14px;color:var(--text-3);line-height:1.8;}
  .qa-group-count{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:18px;font-size:12px;color:var(--primary-light);
    border:1px solid rgba(23,195,217,.35);border-radius:var(--radius-pill);
    padding:4px 12px;height:24px;letter-spacing:.06em;
  }

  .qa-list{display:flex;flex-direction:column;gap:12px;}
  .qa-item{
    border-radius:var(--radius-sm);
    background:var(--glass);
    border:1px solid var(--glass-border);
    border-left:2px solid rgba(255,255,255,.14);
    transition:border-color .24s ease,background .24s ease,box-shadow .24s ease;
    overflow:hidden;
  }
  .qa-item:hover{border-color:rgba(23,195,217,.32);}
  .qa-item.open{
    border-color:rgba(23,195,217,.4);
    border-left-color:var(--accent);
    background:var(--glass-strong);
    box-shadow:var(--shadow-card);
  }
  .qa-q{
    width:100%;
    min-height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:16px 20px;
    background:none;border:0;
    text-align:left;
    color:var(--text);
    font-size:16px;
    font-weight:500;
    line-height:1.6;
  }
  .qa-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
  .qa-q .qa-icon{
    flex-shrink:0;
    width:28px;height:28px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    border:1px solid rgba(23,195,217,.4);
    color:var(--primary-light);
    transition:transform .3s ease,background .24s ease,color .24s ease;
  }
  .qa-q .qa-icon svg{width:14px;height:14px;}
  .qa-item.open .qa-icon{transform:rotate(180deg);background:rgba(200,245,60,.14);color:var(--accent);border-color:rgba(200,245,60,.5);}
  .qa-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .35s ease,opacity .3s ease;
    opacity:0;
  }
  .qa-item.open .qa-a{max-height:640px;opacity:1;}
  .qa-a-inner{padding:0 20px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}
  .qa-a-inner strong{color:var(--text);font-weight:600;}

  .step-mini{margin-top:16px;}
  .step-mini li{
    position:relative;
    padding-left:30px;
    margin-bottom:10px;
    font-size:14px;
    color:var(--text-2);
  }
  .step-mini li::before{
    counter-increment:mini;
    content:counter(mini);
    position:absolute;left:0;top:2px;
    width:20px;height:20px;
    border-radius:6px;
    background:rgba(23,195,217,.14);
    border:1px solid rgba(23,195,217,.35);
    color:var(--primary-light);
    font-family:var(--font-mono);
    font-size:11px;
    display:flex;align-items:center;justify-content:center;
    line-height:1;
  }
  .step-mini{counter-reset:mini;}

  .qa-note{
    margin-top:16px;
    padding:12px 16px;
    border-radius:10px;
    background:rgba(255,107,61,.07);
    border:1px solid rgba(255,107,61,.24);
    font-size:13px;
    color:#FFB79C;
    line-height:1.75;
  }
  .qa-note.is-info{
    background:rgba(23,195,217,.07);
    border-color:rgba(23,195,217,.28);
    color:var(--primary-light);
  }

  /* ============ 排查流程 ============ */
  .flow-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
    position:relative;
  }
  .flow-grid::before{
    content:"";
    position:absolute;
    top:26px;left:24px;right:24px;height:1px;
    background:linear-gradient(90deg,rgba(23,195,217,.6),rgba(200,245,60,.45),rgba(255,255,255,.06));
    z-index:0;
  }
  .flow-card{
    position:relative;
    z-index:1;
    padding:26px 22px;
    border-radius:var(--radius-card);
    background:var(--ink-700);
    border:1px solid var(--glass-border);
    box-shadow:var(--shadow-card);
    transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
  }
  .flow-card:hover{border-color:rgba(23,195,217,.45);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .flow-dot{
    width:44px;height:44px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-family:var(--font-mono);
    font-size:14px;font-weight:700;
    background:rgba(6,11,22,.9);
    border:1px solid rgba(23,195,217,.5);
    color:var(--primary-light);
    box-shadow:0 0 0 6px rgba(6,11,22,.9);
    margin-bottom:18px;
  }
  .flow-card:last-child .flow-dot{border-color:rgba(200,245,60,.6);color:var(--accent);}
  .flow-card h3{font-size:17px;margin-bottom:10px;}
  .flow-card p{font-size:14px;color:var(--text-2);line-height:1.8;}

  /* ============ 手风琴 FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
  .faq-side h2{font-size:30px;}
  .faq-side p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;}
  .faq-contact{
    margin-top:26px;
    padding:18px 20px;
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--glass-border);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
  }
  .faq-contact-title{font-size:12px;letter-spacing:.1em;color:var(--text-3);margin-bottom:8px;}
  .faq-contact b{font-family:var(--font-mono);font-size:15px;color:var(--primary-light);}
  .faq-contact .btn{margin-top:16px;width:100%;}

  .acc-item{
    border-bottom:1px solid var(--line);
  }
  .acc-item:first-child{border-top:1px solid var(--line);}
  .acc-q{
    width:100%;
    min-height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 4px 18px 16px;
    background:none;border:0;border-left:2px solid transparent;
    text-align:left;color:var(--text);font-size:16px;font-weight:500;
    transition:border-color .24s ease,color .24s ease;
  }
  .acc-q:hover{color:var(--primary-light);}
  .acc-item.open .acc-q{border-left-color:var(--accent);color:var(--text);padding-left:16px;}
  .acc-q svg{width:18px;height:18px;flex-shrink:0;color:var(--text-3);transition:transform .3s ease,color .24s ease;}
  .acc-item.open .acc-q svg{transform:rotate(180deg);color:var(--accent);}
  .acc-q:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
  .acc-a{max-height:0;overflow:hidden;transition:max-height .35s ease,opacity .3s ease;opacity:0;}
  .acc-item.open .acc-a{max-height:420px;opacity:1;}
  .acc-a-inner{padding:0 40px 22px 16px;color:var(--text-2);font-size:15px;line-height:1.9;}

  /* ============ CTA 表单 ============ */
  .cta-band{
    background:var(--ink-800);
    border-top:1px solid var(--line);
    padding:96px 0;
  }
  .cta-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
  .cta-points{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
  .cta-point{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
  .cta-point i{
    flex-shrink:0;
    width:22px;height:22px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:rgba(200,245,60,.14);
    border:1px solid rgba(200,245,60,.45);
    color:var(--accent);
    margin-top:5px;
  }
  .cta-point i svg{width:12px;height:12px;}
  .cta-contact{
    margin-top:30px;padding-top:24px;border-top:1px solid var(--line);
    font-size:14px;color:var(--text-3);line-height:2;
  }
  .cta-contact b{color:var(--primary-light);font-family:var(--font-mono);}

  .form-card{
    padding:32px;
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--glass-border);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .form-field{display:flex;flex-direction:column;gap:8px;}
  .form-field.full{grid-column:1 / -1;}
  .form-field label{font-size:13px;color:var(--text-2);}
  .form-field input,
  .form-field select,
  .form-field textarea{
    width:100%;
    min-height:48px;
    padding:12px 14px;
    border-radius:var(--radius-sm);
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.04);
    color:var(--text);
    font-size:15px;
    font-family:inherit;
    transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
  }
  .form-field textarea{min-height:112px;resize:vertical;line-height:1.75;}
  .form-field input::placeholder,
  .form-field textarea::placeholder{color:var(--text-3);}
  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(23,195,217,.18);
    background:rgba(255,255,255,.06);
  }
  .form-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6B7F94 50%),linear-gradient(135deg,#6B7F94 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
  .form-field select option{background:var(--ink-700);color:var(--text);}
  .form-hint{font-size:12px;color:var(--text-3);}
  .form-submit{width:100%;margin-top:22px;}
  .form-legal{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7;}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    background:var(--ink-900);
    padding:72px 0 28px;
    border-top:1px solid var(--line);
  }
  .site-footer::before{
    content:"";
    position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,195,217,.5),rgba(200,245,60,.35),transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:44px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
  .footer-brand .brand-mark{width:38px;height:38px;}
  .footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
  .footer-link{
    display:block;
    font-size:14px;
    color:var(--text-2);
    padding:6px 0;
    transition:color .2s ease,transform .2s ease;
  }
  .footer-link:hover{color:var(--primary-light);transform:translateX(4px);}
  .footer-info{font-size:14px;color:var(--text-2);line-height:2;}
  .footer-info strong{color:var(--text);font-weight:600;}
  .footer-bottom{
    margin-top:52px;
    padding-top:24px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-3);
  }
  .back-top{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 18px;
    border-radius:var(--radius-pill);
    border:1px solid var(--glass-border);
    background:rgba(255,255,255,.04);
    color:var(--text-2);
    font-size:13px;
    transition:.22s ease;
    min-height:40px;
  }
  .back-top svg{width:16px;height:16px;}
  .back-top:hover{color:var(--accent);border-color:rgba(200,245,60,.45);transform:translateY(-2px);}
  .back-top:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .main-nav .nav-link{padding:9px 9px;font-size:13.5px;}
  }

  @media (max-width:1023px){
    .main-nav{display:none;}
    .nav-toggle{display:flex;}
    .search-box{display:none;}
    .page-hero{padding:48px 0 56px;}
    .section{padding:72px 0;}
    .cta-band{padding:72px 0;}
    .hero-split{grid-template-columns:1fr;gap:44px;}
    .page-hero h1{font-size:34px;}
    .hero-visual img{aspect-ratio:16/10;}
    .hero-float{left:12px;bottom:-18px;}
    .stat-grid{grid-template-columns:repeat(2,1fr);}
    .qa-group{grid-template-columns:1fr;gap:24px;padding:36px 0;}
    .flow-grid{grid-template-columns:repeat(2,1fr);}
    .flow-grid::before{display:none;}
    .faq-layout{grid-template-columns:1fr;gap:36px;}
    .cta-layout{grid-template-columns:1fr;gap:40px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  }

  @media (max-width:767px){
    body{font-size:15.5px;}
    .container{padding:0 20px;}
    .header-inner{height:56px;}
    .brand-mark{width:36px;height:36px;}
    .brand-main{font-size:15.5px;}
    .brand-sub{font-size:10px;}
    .header-actions .btn{display:none;}
    .page-hero{padding:36px 0 48px;}
    .page-hero h1{font-size:28px;}
    .hero-lead{font-size:15.5px;}
    .hero-meta{gap:20px;margin-top:26px;}
    .hero-actions .btn{width:100%;}
    .section{padding:56px 0;}
    .section h2{font-size:24px;}
    .section-head{margin-bottom:32px;}
    .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
    .stat-num{font-size:30px;}
    .stat-card{padding:18px 16px;}
    .qa-group{padding:28px 0;gap:18px;}
    .qa-q{font-size:15px;padding:14px 16px;min-height:60px;}
    .qa-a-inner{padding:0 16px 18px;font-size:14.5px;}
    .flow-grid{grid-template-columns:1fr;}
    .faq-side h2{font-size:24px;}
    .acc-q{padding:16px 4px 16px 14px;font-size:15px;}
    .acc-a-inner{padding:0 20px 18px 14px;font-size:14.5px;}
    .form-card{padding:22px 18px;}
    .form-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:32px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .cta-band{padding:56px 0;}
  }

  @media (max-width:420px){
    .stat-grid{grid-template-columns:1fr;}
    .hero-meta-item b{font-size:18px;}
  }