/* roulang page: index */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --panel-2:#111C33;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --primary:#22D3EE;
  --primary-soft:#7DE9F7;
  --accent:#F5A524;
  --ok:#2FD6A8;
  --text:#E9F1FB;
  --text-2:#A7B6CC;
  --text-3:#6E7F99;
  --radius-card:20px;
  --radius-sm:16px;
  --radius-btn:999px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.8);
  --font-title:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font-title);font-size:16.5px;line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out,transform .18s ease-out}
a:hover{color:#fff}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(34,211,238,.28);color:#fff}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:600;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:104px 0;position:relative}
.section--tight{padding:80px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(34,211,238,.12);color:var(--primary);font-size:12.5px;letter-spacing:.02em;margin-bottom:16px;
}
.sec-tag--accent{background:rgba(245,165,36,.12);color:var(--accent)}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.3}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:15.5px;max-width:62ch}
.sec-link{color:var(--primary);font-size:14.5px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.sec-link:hover{color:var(--primary-soft);gap:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:all .2s ease-out;white-space:nowrap;border:1px solid transparent;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-primary{
  background:var(--primary);color:#04131A;
  box-shadow:0 0 0 1px rgba(34,211,238,.35),0 8px 30px -8px rgba(34,211,238,.45);
}
.btn-primary:hover{background:var(--primary-soft);color:#04131A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(125,233,247,.5),0 14px 38px -8px rgba(34,211,238,.55)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line);color:var(--text-2);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(34,211,238,.45);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
  font-size:12.5px;background:rgba(34,211,238,.12);color:var(--primary);line-height:1;
}
.badge--accent{background:rgba(245,165,36,.13);color:var(--accent)}
.badge--ok{background:rgba(47,214,168,.13);color:var(--ok)}
.dot-sep{color:var(--text-3);margin:0 8px}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:18px;left:0;right:0;z-index:80;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;max-width:1080px;margin:0 auto;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 14px 0 16px;border-radius:999px;
  background:rgba(12,20,36,.62);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 20px 40px -24px rgba(0,0,0,.85);
  transition:background-color .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.dock.is-scrolled{background:rgba(8,14,26,.9);border-color:rgba(34,211,238,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 24px 48px -26px rgba(0,0,0,.95)}
.dock-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#0E9AB8);color:#04131A;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:-.02em;
  box-shadow:0 6px 18px -8px rgba(34,211,238,.8);
}
.brand-text{font-size:15.5px;font-weight:600;letter-spacing:-.01em}
.dock-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.dock-link{
  position:relative;padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.dock-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transform:translateY(3px);transition:opacity .18s ease-out,transform .18s ease-out;
}
.dock-link:hover{color:#fff;background:rgba(255,255,255,.04)}
.dock-link:hover::after{opacity:.65;transform:translateY(0)}
.dock-link.active{color:#fff;background:rgba(34,211,238,.1)}
.dock-link.active::after{opacity:1;transform:translateY(0)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.dock-search{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);transition:all .18s ease-out;
}
.dock-search:hover{color:#fff;border-color:rgba(34,211,238,.4)}
.dock-toggle{display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);place-items:center;color:var(--text-2)}
.dock-toggle:hover{color:#fff;border-color:rgba(34,211,238,.4)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(6,10,20,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:88px 24px 32px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{padding:18px 6px;font-size:21px;font-weight:600;border-bottom:1px solid var(--line);color:var(--text-2)}
.drawer-link.active{color:var(--primary)}
.drawer-link:hover{color:#fff;padding-left:12px}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-close{
  position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);
}
.drawer-close:hover{color:#fff;border-color:rgba(34,211,238,.4)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:158px 0 96px;overflow:hidden}
.grid-tex::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 20%,transparent 78%);
}
.glow-corner::after{
  content:"";position:absolute;top:-180px;right:-140px;width:620px;height:620px;pointer-events:none;
  background:radial-gradient(circle,rgba(34,211,238,.08),transparent 62%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);color:var(--primary-soft);
  font-size:13px;letter-spacing:.02em;margin-bottom:22px;
}
.eyebrow .pulse{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(47,214,168,.16)}
.hero-title{font-size:clamp(30px,4.4vw,52px);line-height:1.18;font-weight:700;letter-spacing:-.02em}
.hero-title em{font-style:normal;color:var(--primary);position:relative}
.hero-sub{margin-top:22px;color:var(--text-2);font-size:17px;max-width:56ch;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.trust{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:32px;color:var(--text-3);font-size:13.5px}
.trust span{color:var(--text-2)}
.trust i{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;margin:0 10px}

.hero-visual{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.hero-visual img{width:100%;aspect-ratio:4/3.4;object-fit:cover;filter:saturate(.9) brightness(.72)}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.15),rgba(6,10,20,.72))}
.float-card{
  position:absolute;z-index:3;padding:14px 16px;border-radius:16px;min-width:170px;
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 20px 40px -24px rgba(0,0,0,.9);
}
.float-card .fc-label{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.float-card .fc-value{font-family:var(--font-mono);font-size:16px;font-weight:600;margin-top:4px;font-variant-numeric:tabular-nums}
.float-a{left:20px;top:26px}
.float-b{right:20px;bottom:26px}
.fc-value.ok{color:var(--ok)}
.fc-value.accent{color:var(--accent)}

/* ---------- 服务编号板块 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.svc-card{
  position:relative;padding:30px 28px 28px;border-radius:var(--radius-card);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  border:1px solid var(--line);transition:all .22s ease-out;overflow:hidden;
}
.svc-card:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.32);box-shadow:0 24px 48px -30px rgba(34,211,238,.5)}
.svc-card.big{grid-column:span 3;padding:36px 32px}
.svc-card.small{grid-column:span 2}
.svc-num{font-family:var(--font-mono);font-size:13px;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.svc-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin:18px 0 16px;
  background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.18);color:var(--primary);
}
.svc-card h3{font-size:20px;margin-bottom:10px}
.svc-card.big h3{font-size:23px}
.svc-card p{color:var(--text-2);font-size:15px}

/* ---------- 数据带 ---------- */
.stat-band{
  position:relative;background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;overflow:hidden;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);position:relative;z-index:2}
.stat-item{padding:0 26px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;
  font-size:clamp(36px,4.4vw,56px);line-height:1;letter-spacing:-.03em;color:var(--text);
}
.stat-num .unit{font-size:.42em;color:var(--primary);margin-left:6px;font-weight:600}
.stat-label{margin-top:14px;color:var(--text-2);font-size:14.5px}

/* ---------- 案例马赛克 ---------- */
.case-mosaic{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
.case-card{
  grid-column:span 2;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  background:var(--panel);transition:all .22s ease-out;display:flex;flex-direction:column;
}
.case-card.wide{grid-column:span 3}
.case-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.3);box-shadow:var(--shadow-card)}
.case-media{overflow:hidden;position:relative}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease-out;filter:brightness(.85)}
.case-card:hover .case-media img{transform:scale(1.03)}
.case-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-body h3{font-size:18px;line-height:1.5}
.case-meta{margin-top:auto;color:var(--text-3);font-size:13px;display:flex;align-items:center;gap:8px}

/* ---------- 方案时间线 ---------- */
.tl-wrap{display:grid;grid-template-columns:5fr 7fr;gap:60px;align-items:start}
.tl-sticky{position:sticky;top:120px}
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(34,211,238,0));
}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item .tl-idx{font-family:var(--font-mono);font-size:12.5px;color:var(--accent);letter-spacing:.08em;margin-bottom:6px;display:block}
.tl-item p{color:var(--text-2);font-size:15px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:22px;align-items:start}
.news-main{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--panel);
  transition:all .22s ease-out;display:block;
}
.news-main:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.3);box-shadow:var(--shadow-card)}
.news-main img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.86);transition:transform .35s ease-out}
.news-main:hover img{transform:scale(1.03)}
.news-main .nm-body{padding:26px 26px 28px}
.news-main h3{font-size:21px;line-height:1.5;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-main p{color:var(--text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:flex;gap:16px;padding:14px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.025);transition:all .2s ease-out;align-items:flex-start;
}
.news-item:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.3);background:rgba(34,211,238,.04)}
.news-item img{width:96px;height:96px;border-radius:12px;object-fit:cover;flex-shrink:0;filter:brightness(.85)}
.news-item h4{font-size:15.5px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-item .ni-meta{color:var(--text-3);font-size:12.5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.empty-state{
  border-radius:var(--radius-card);border:1px dashed rgba(34,211,238,.24);background:var(--glass);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{color:var(--primary)}
.empty-state p{color:var(--text-2);font-size:15px}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:5fr 7fr;gap:60px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item::before{
  content:"";position:absolute;left:-18px;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .2s ease-out;
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);transition:color .18s ease-out;
}
.faq-q:hover{color:var(--primary-soft)}
.faq-icon{flex-shrink:0;width:22px;height:22px;position:relative;margin-top:4px;transition:transform .22s ease-out;color:var(--primary)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out}
.faq-a p{padding:0 44px 24px 4px;color:var(--text-2);font-size:15px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.form-card,.info-card{
  border-radius:var(--radius-card);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-card);
}
.form-card{padding:34px}
.info-card{padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:12px;
  background:rgba(6,10,20,.6);border:1px solid var(--line);color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:112px;padding:12px 14px;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 4px rgba(34,211,238,.14);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236E7F99' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent);box-shadow:0 0 0 4px rgba(245,165,36,.12)}
.form-note{margin-top:14px;color:var(--text-3);font-size:12.5px}
.info-row{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.info-row:last-of-type{border-bottom:0}
.info-row .k{color:var(--text-3)}
.info-row .v{color:var(--text);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:14px}
.qr-box{
  margin-top:22px;border-radius:16px;border:1px dashed var(--line);padding:20px;text-align:center;
  color:var(--text-3);font-size:13px;
}
.qr-box .qr-mark{
  width:88px;height:88px;margin:0 auto 12px;border-radius:12px;
  background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(245,165,36,.14));
  border:1px solid var(--line);display:grid;place-items:center;color:var(--primary-soft);
}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.cta-band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.42)}
.cta-inner{position:relative;z-index:2;padding:64px 40px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px)}
.cta-inner p{color:var(--text-2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;justify-content:center}

/* ---------- 页脚 ---------- */
.footer{margin-top:40px;border-top:1px solid transparent;border-image:linear-gradient(90deg,transparent,rgba(34,211,238,.5),transparent) 1;background:var(--panel);padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-desc{color:var(--text-2);font-size:14.5px;max-width:34ch}
.foot-social{display:flex;gap:10px;margin-top:20px}
.foot-social span{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-3)
}
.foot-title{font-size:14px;color:var(--text);font-weight:600;margin-bottom:18px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{color:var(--text-2);font-size:14.5px}
.foot-links a:hover{color:var(--primary)}
.foot-contact{display:flex;flex-direction:column;gap:12px;color:var(--text-2);font-size:14.5px}
.foot-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:var(--text-3);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:80px 0}
  .hero{padding:132px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .svc-card.big,.svc-card.small{grid-column:span 3}
  .case-card,.case-card.wide{grid-column:span 3}
  .tl-wrap,.faq-wrap,.contact-grid,.news-grid{grid-template-columns:1fr;gap:40px}
  .tl-sticky{position:static}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat-item:nth-child(2){border-right:0}
  .stat-item{padding:0 20px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .dock-nav{display:none}
  .dock-toggle{display:grid}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding:118px 0 56px}
  .dock-wrap{top:12px;padding:0 14px}
  .dock{height:58px;padding:0 10px 0 12px}
  .dock-actions .btn{display:none}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:34px}
  .svc-card.big,.svc-card.small{grid-column:span 6}
  .case-card,.case-card.wide{grid-column:span 6}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{padding:0 14px}
  .stat-item:nth-child(odd){border-right:1px solid var(--line)}
  .stat-item:nth-child(even){border-right:0}
  .form-card,.info-card{padding:22px}
  .cta-inner{padding:44px 22px}
  .btn{width:100%}
  .hero-cta .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .news-item img{width:80px;height:80px}
  .float-card{min-width:140px;padding:11px 13px}
  .float-card .fc-value{font-size:14px}
}

/* roulang page: category1 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --panel-2:#111C33;
    --line:rgba(255,255,255,.08);
    --glass:rgba(255,255,255,.05);
    --primary:#22D3EE;
    --primary-soft:#7DE9F7;
    --accent:#F5A524;
    --ok:#2FD6A8;
    --text:#E9F1FB;
    --text-2:#A7B6CC;
    --text-3:#6E7F99;
    --radius:16px;
    --radius-lg:20px;
    --pill:999px;
    --shadow-card:0 20px 40px -24px rgba(0,0,0,.8);
    --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    top:-200px;right:-160px;
    width:620px;height:620px;
    background:radial-gradient(circle,rgba(34,211,238,.08),transparent 68%);
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block}
  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(--primary);outline-offset:2px;border-radius:6px}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 20px;
    position:relative;
    z-index:1;
  }
  @media (min-width:1024px){
    .container{padding:0 32px}
  }

  .grid-tex{
    background-image:
      linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
    background-size:48px 48px;
  }

  /* ---------- Dock 导航 ---------- */
  .site-head{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    padding:16px 16px 0;
  }
  .dock{
    max-width:1080px;
    margin:0 auto;
    height:64px;
    display:flex;
    align-items:center;
    gap:16px;
    padding:0 14px 0 16px;
    border-radius:var(--pill);
    background:rgba(12,20,36,.72);
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:0 20px 40px -24px rgba(0,0,0,.8);
    transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  }
  .site-head.scrolled .dock{
    background:rgba(9,15,28,.92);
    border-color:rgba(255,255,255,.12);
    box-shadow:0 24px 48px -26px rgba(0,0,0,.95);
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:30px;height:30px;
    display:grid;place-items:center;
    border-radius:9px;
    background:linear-gradient(135deg,var(--primary),#0E7490);
    color:#04121A;
    font-family:var(--mono);
    font-size:13px;
    font-weight:700;
    letter-spacing:0;
  }
  .brand-text{
    font-size:16px;
    font-weight:600;
    color:var(--text);
    white-space:nowrap;
  }
  .dock-nav{
    display:none;
    align-items:center;
    gap:4px;
    margin:0 auto;
  }
  .dock-link{
    position:relative;
    padding:8px 14px;
    font-size:14px;
    color:var(--text-2);
    border-radius:var(--pill);
    transition:color .18s ease-out,background-color .18s ease-out;
    white-space:nowrap;
  }
  .dock-link::after{
    content:"";
    position:absolute;
    left:50%;bottom:2px;
    width:0;height:3px;
    border-radius:var(--pill);
    background:var(--primary);
    transform:translateX(-50%);
    opacity:0;
    transition:width .2s ease-out,opacity .2s ease-out;
  }
  .dock-link:hover{color:#fff;background:rgba(255,255,255,.05)}
  .dock-link:hover::after{width:18px;opacity:.6}
  .dock-link.active{color:#fff;background:rgba(34,211,238,.1)}
  .dock-link.active::after{width:22px;opacity:1}
  .dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
  .icon-btn{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:var(--pill);
    background:transparent;
    border:1px solid var(--line);
    color:var(--text-2);
    cursor:pointer;
    transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
  }
  .icon-btn:hover{color:#fff;border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.08)}
  .burger{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:var(--pill);
    background:transparent;
    border:1px solid var(--line);
    color:var(--text);
    cursor:pointer;
  }
  .burger:hover{border-color:rgba(34,211,238,.4)}
  @media (min-width:1024px){
    .dock-nav{display:flex}
    .burger{display:none}
  }

  .drawer{
    display:none;
    position:fixed;
    inset:0;
    z-index:70;
    background:rgba(6,10,20,.96);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:96px 24px 32px;
    flex-direction:column;
    gap:6px;
  }
  .drawer.open{display:flex}
  .drawer a.drawer-link{
    font-size:22px;
    font-weight:600;
    padding:14px 4px;
    color:var(--text-2);
    border-bottom:1px solid var(--line);
  }
  .drawer a.drawer-link.active{color:var(--primary)}
  .drawer .drawer-cta{margin-top:auto}
  .drawer-close{
    position:absolute;
    top:20px;right:20px;
    width:42px;height:42px;
    display:grid;place-items:center;
    border-radius:var(--pill);
    border:1px solid var(--line);
    background:transparent;
    color:var(--text);
    cursor:pointer;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 26px;
    border:1px solid transparent;
    border-radius:var(--pill);
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .2s ease-out;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn-primary{
    background:var(--primary);
    color:#03151B;
    box-shadow:0 0 0 1px rgba(34,211,238,.35),0 8px 30px -8px rgba(34,211,238,.45);
  }
  .btn-primary:hover{background:var(--primary-soft);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 14px 38px -10px rgba(34,211,238,.6)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{
    background:transparent;
    border-color:var(--line);
    color:var(--text-2);
  }
  .btn-ghost:hover{color:#fff;border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.06)}
  .btn-ghost:active{transform:translateY(1px)}

  /* ---------- 主体 ---------- */
  main{padding-top:104px}
  .crumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:18px;
  }
  .crumb a{color:var(--text-2);transition:color .18s ease-out}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{color:var(--text-3)}
  .crumb .cur{color:var(--text-2)}

  .hero-bar{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--line);
    min-height:212px;
    display:flex;
    align-items:flex-end;
    margin-bottom:56px;
  }
  .hero-bar .hero-bg{
    position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-1.png");
    background-size:cover;
    background-position:center;
  }
  .hero-bar .hero-bg::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(6,10,20,.92),rgba(6,10,20,.6));
  }
  .hero-bar .hero-tex{
    position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(34,211,238,.06) 1px,transparent 1px),
      linear-gradient(90deg,rgba(34,211,238,.06) 1px,transparent 1px);
    background-size:48px 48px;
  }
  .hero-inner{
    position:relative;
    z-index:2;
    padding:30px 26px;
    max-width:760px;
  }
  @media (min-width:768px){
    .hero-bar{min-height:236px}
    .hero-inner{padding:38px 40px}
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:26px;
    padding:0 12px;
    border-radius:var(--pill);
    background:rgba(34,211,238,.12);
    color:var(--primary-soft);
    font-size:12px;
    font-weight:600;
    margin-bottom:14px;
  }
  .hero-inner h1{
    font-size:clamp(30px,4.4vw,52px);
    font-weight:700;
    letter-spacing:-.02em;
    line-height:1.16;
    margin-bottom:12px;
  }
  .hero-inner p{
    font-size:16px;
    color:var(--text-2);
    max-width:640px;
  }
  .hero-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px 20px;
    margin-top:18px;
    font-size:13px;
    color:var(--text-3);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:6px}
  .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}

  section.band{padding:64px 0}
  @media (min-width:1024px){
    section.band{padding:96px 0}
  }
  .sec-head{margin-bottom:36px;max-width:760px}
  .sec-head h2{
    font-size:clamp(24px,3vw,34px);
    font-weight:600;
    line-height:1.3;
    margin-bottom:12px;
  }
  .sec-head p{color:var(--text-2);font-size:16px}
  .sec-kicker{
    font-family:var(--mono);
    font-size:13px;
    color:var(--accent);
    letter-spacing:.06em;
    margin-bottom:10px;
    display:block;
  }

  /* ---------- 数据带 ---------- */
  .stat-band{
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    position:relative;
    overflow:hidden;
  }
  .stat-band .grid-tex{
    position:absolute;inset:0;
    opacity:.8;
  }
  .stat-grid{
    position:relative;z-index:1;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:1px;
    background:var(--line);
    border-radius:var(--radius);
    overflow:hidden;
  }
  @media (min-width:1024px){
    .stat-grid{grid-template-columns:repeat(4,1fr)}
  }
  .stat-cell{
    background:var(--panel);
    padding:28px 22px;
  }
  @media (min-width:1024px){
    .stat-cell{padding:34px 28px}
  }
  .stat-num{
    font-family:var(--mono);
    font-variant-numeric:tabular-nums;
    font-size:clamp(36px,4.6vw,56px);
    font-weight:700;
    line-height:1;
    color:var(--text);
    display:flex;
    align-items:baseline;
    gap:6px;
  }
  .stat-num small{font-size:14px;font-weight:500;color:var(--text-3);font-family:inherit}
  .stat-cell .stat-label{margin-top:12px;font-size:14px;color:var(--text-2)}

  /* ---------- 卡片网格 ---------- */
  .card-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
  }
  @media (min-width:768px){
    .card-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media (min-width:1024px){
    .card-grid{grid-template-columns:repeat(3,1fr)}
  }
  .q-card{
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    display:flex;
    flex-direction:column;
    transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .q-card:hover{
    transform:translateY(-2px);
    border-color:rgba(34,211,238,.3);
    box-shadow:0 26px 44px -28px rgba(0,0,0,.9);
  }
  .q-card .thumb{
    aspect-ratio:16/9;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .q-card .thumb img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .3s ease-out;
  }
  .q-card:hover .thumb img{transform:scale(1.03)}
  .q-card .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
  .tag{
    display:inline-flex;
    align-items:center;
    height:26px;
    padding:0 12px;
    border-radius:var(--pill);
    font-size:12px;
    font-weight:600;
    background:rgba(34,211,238,.12);
    color:var(--primary-soft);
    width:fit-content;
  }
  .tag.accent{background:rgba(245,165,36,.14);color:#F7C871}
  .tag.ok{background:rgba(47,214,168,.14);color:#7BE7C6}
  .q-card h3{font-size:19px;font-weight:600;line-height:1.5}
  .q-card p{font-size:14px;color:var(--text-2);line-height:1.75}
  .q-card .foot{
    margin-top:auto;
    padding-top:14px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    font-size:13px;
    color:var(--text-3);
  }
  .q-card .foot a{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);
    font-weight:600;
    transition:gap .18s ease-out,color .18s ease-out;
  }
  .q-card .foot a:hover{gap:10px;color:var(--primary-soft)}

  /* ---------- 时间线 ---------- */
  .timeline{
    position:relative;
    padding-left:34px;
    display:flex;
    flex-direction:column;
    gap:28px;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:9px;top:6px;bottom:6px;
    width:2px;
    background:linear-gradient(180deg,rgba(34,211,238,.9),rgba(34,211,238,.08));
  }
  .tl-item{position:relative}
  .tl-item::before{
    content:"";
    position:absolute;
    left:-30px;top:8px;
    width:10px;height:10px;
    border-radius:50%;
    background:var(--bg);
    border:2px solid var(--primary);
  }
  .tl-item .tl-num{
    font-family:var(--mono);
    font-variant-numeric:tabular-nums;
    font-size:13px;
    color:var(--accent);
    display:block;
    margin-bottom:6px;
  }
  .tl-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
  .tl-item p{font-size:15px;color:var(--text-2)}

  /* ---------- 对比卡 ---------- */
  .compare-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
  }
  @media (min-width:1024px){
    .compare-grid{grid-template-columns:1fr 1fr}
  }
  .compare-card{
    border-radius:var(--radius-lg);
    border:1px solid var(--line);
    background:var(--panel);
    padding:26px;
  }
  .compare-card.warn{
    border-color:rgba(245,165,36,.28);
    background:linear-gradient(180deg,rgba(245,165,36,.07),rgba(12,20,36,.6));
  }
  .compare-card.good{
    border-color:rgba(34,211,238,.3);
    background:linear-gradient(180deg,rgba(34,211,238,.07),rgba(12,20,36,.6));
  }
  .compare-card h3{
    font-size:20px;
    font-weight:600;
    margin-bottom:16px;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .compare-card ul{display:flex;flex-direction:column;gap:14px}
  .compare-card li{
    display:flex;
    gap:12px;
    font-size:15px;
    color:var(--text-2);
    padding-bottom:14px;
    border-bottom:1px solid var(--line);
  }
  .compare-card li:last-child{border-bottom:0;padding-bottom:0}
  .compare-card li span.idx{
    font-family:var(--mono);
    font-size:13px;
    color:var(--text-3);
    flex:0 0 auto;
    padding-top:3px;
  }

  /* ---------- FAQ ---------- */
  .faq-wrap{
    display:grid;
    grid-template-columns:1fr;
    gap:30px;
  }
  @media (min-width:1024px){
    .faq-wrap{grid-template-columns:360px 1fr;gap:56px}
    .faq-side{position:sticky;top:110px;align-self:start}
  }
  .faq-side h2{
    font-size:clamp(24px,3vw,32px);
    font-weight:600;
    line-height:1.3;
    margin-bottom:14px;
  }
  .faq-side p{color:var(--text-2);font-size:15px}
  .faq-list{display:flex;flex-direction:column;gap:14px}
  .faq-item{
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:var(--glass);
    overflow:hidden;
    transition:border-color .2s ease-out,background-color .2s ease-out;
  }
  .faq-item:hover{border-color:rgba(34,211,238,.24)}
  .faq-item.open{
    border-color:rgba(34,211,238,.4);
    box-shadow:inset 2px 0 0 var(--primary);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 22px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--text);
    cursor:pointer;
  }
  .faq-q .faq-icon{
    flex:0 0 auto;
    width:24px;height:24px;
    display:grid;place-items:center;
    color:var(--primary);
    transition:transform .24s ease-out;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .24s ease-out;
  }
  .faq-a p{
    padding:0 22px 20px;
    font-size:15px;
    color:var(--text-2);
  }

  /* ---------- CTA 条 ---------- */
  .cta-band{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    border:1px solid var(--line);
    padding:56px 26px;
    text-align:center;
  }
  @media (min-width:768px){
    .cta-band{padding:72px 40px}
  }
  .cta-band .cta-bg{
    position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-2.png");
    background-size:cover;
    background-position:center;
  }
  .cta-band .cta-bg::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,10,20,.72),rgba(6,10,20,.9));
  }
  .cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
  .cta-inner h2{
    font-size:clamp(24px,3vw,34px);
    font-weight:600;
    line-height:1.3;
    margin-bottom:14px;
  }
  .cta-inner p{color:var(--text-2);margin-bottom:26px;font-size:16px}
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:center;
  }
  .cta-actions .btn{flex:1 1 200px}
  @media (min-width:768px){
    .cta-actions .btn{flex:0 0 auto}
  }

  /* ---------- 页脚 ---------- */
  .footer{
    margin-top:80px;
    padding-top:64px;
    border-top:1px solid var(--line);
    position:relative;
    background:linear-gradient(180deg,rgba(17,28,51,.5),rgba(6,10,20,1));
  }
  .footer::before{
    content:"";
    position:absolute;
    top:-1px;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(34,211,238,.7),transparent);
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:44px;
  }
  @media (min-width:768px){
    .foot-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media (min-width:1024px){
    .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
  }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .foot-brand .brand-mark{width:28px;height:28px;font-size:12px}
  .foot-brand .brand-text{font-size:16px;font-weight:600}
  .foot-desc{font-size:14px;color:var(--text-2);max-width:320px}
  .foot-social{display:flex;gap:10px;margin-top:18px}
  .foot-social span{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:10px;
    border:1px solid var(--line);
    color:var(--text-3);
    transition:color .18s ease-out,border-color .18s ease-out;
  }
  .foot-social span:hover{color:var(--primary);border-color:rgba(34,211,238,.4)}
  .foot-title{
    font-size:14px;
    font-weight:600;
    color:var(--text);
    margin-bottom:16px;
  }
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-links a{
    font-size:14px;
    color:var(--text-2);
    width:fit-content;
    transition:color .18s ease-out,transform .18s ease-out;
  }
  .foot-links a:hover{color:var(--primary);transform:translateX(2px)}
  .foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
  .foot-bottom{
    border-top:1px solid var(--line);
    padding:22px 0 32px;
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:13px;
    color:var(--text-3);
  }

/* roulang page: article */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --panel-2:#111C33;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.05);
  --primary:#22D3EE;
  --primary-soft:#7DE9F7;
  --accent:#F5A524;
  --ok:#2FD6A8;
  --text:#E9F1FB;
  --text-2:#A7B6CC;
  --text-3:#6E7F99;
  --radius:16px;
  --radius-lg:20px;
  --pill:999px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.8);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(680px 420px at 88% -6%, rgba(34,211,238,.10), transparent 62%),
    radial-gradient(520px 380px at 6% 12%, rgba(245,165,36,.05), transparent 66%);
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
@media (min-width:1024px){
  .container{padding:0 32px;}
}

/* ============ Dock 导航 ============ */
.site-head{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:60;
  display:flex;
  justify-content:center;
  padding:0 16px;
}
.dock{
  width:100%;
  max-width:1040px;
  min-height:64px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:8px 10px 8px 14px;
  border-radius:var(--pill);
  background:rgba(12,20,36,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow);
  transition:background .22s ease-out, border-color .22s ease-out, backdrop-filter .22s ease-out;
}
.dock.is-scrolled{
  background:rgba(6,10,20,.9);
  border-color:rgba(34,211,238,.22);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.dock-brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding-right:14px;
  border-right:1px solid var(--line);
  min-height:44px;
}
.brand-mark{
  width:30px;
  height:30px;
  flex:0 0 30px;
  display:grid;
  place-items:center;
  border-radius:9px;
  background:linear-gradient(150deg,var(--primary),#0E7490);
  color:#04212A;
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(34,211,238,.35), 0 8px 22px -10px rgba(34,211,238,.7);
}
.brand-text{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
}
.dock-nav{
  display:none;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
}
.dock-link{
  position:relative;
  padding:9px 14px;
  border-radius:var(--pill);
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .18s ease-out, background .18s ease-out;
}
.dock-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  opacity:0;
  transition:width .2s ease-out, opacity .2s ease-out;
}
.dock-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.dock-link:hover::after{width:18px;opacity:.7;}
.dock-link.active{color:#fff;background:rgba(34,211,238,.12);}
.dock-link.active::after{width:22px;opacity:1;}
.dock-side{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  flex:0 0 auto;
}
.dock-search{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  cursor:pointer;
  transition:color .18s ease-out, border-color .18s ease-out, background .18s ease-out;
}
.dock-search:hover{color:#fff;border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.08);}
.dock-toggle{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:transparent;
  color:var(--text);
  cursor:pointer;
  transition:border-color .18s ease-out, background .18s ease-out;
}
.dock-toggle:hover{border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.08);}
@media (min-width:1024px){
  .dock-nav{display:flex;}
  .dock-toggle{display:none;}
}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:70;
  background:rgba(6,10,20,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:96px 24px 28px;
  display:flex;
  flex-direction:column;
  gap:6px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer a.drawer-link{
  font-size:20px;
  font-weight:600;
  color:var(--text);
  padding:14px 4px;
  border-bottom:1px solid var(--line);
  transition:color .18s ease-out, padding-left .18s ease-out;
}
.drawer a.drawer-link:hover{color:var(--primary-soft);padding-left:10px;}
.drawer .drawer-cta{margin-top:auto;}
.drawer-close{
  position:absolute;
  top:22px;
  right:22px;
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:var(--pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background .18s ease-out, border-color .18s ease-out, color .18s ease-out;
}
.btn-primary{
  background:var(--primary);
  color:#03212A;
  box-shadow:0 0 0 1px rgba(34,211,238,.35), 0 8px 30px -8px rgba(34,211,238,.45);
}
.btn-primary:hover{background:var(--primary-soft);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,211,238,.5), 0 14px 38px -10px rgba(34,211,238,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text-2);
}
.btn-ghost:hover{border-color:rgba(34,211,238,.4);color:#fff;background:rgba(34,211,238,.06);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--pill);
  font-size:12.5px;
  font-weight:500;
  background:rgba(34,211,238,.12);
  color:var(--primary-soft);
  border:1px solid rgba(34,211,238,.2);
  white-space:nowrap;
}
.badge-accent{background:rgba(245,165,36,.12);color:#F7C46A;border-color:rgba(245,165,36,.22);}
.badge-ok{background:rgba(47,214,168,.12);color:#6FE6C3;border-color:rgba(47,214,168,.22);}

/* ============ 主内容 ============ */
main{position:relative;z-index:1;padding-top:112px;}
@media (min-width:1024px){main{padding-top:132px;}}

.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-3);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--primary-soft);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{
  position:relative;
  padding:38px 0 32px;
  border-bottom:1px solid var(--line);
}
.article-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(34,211,238,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34,211,238,.05) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(600px 260px at 20% 20%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(600px 260px at 20% 20%, #000 20%, transparent 78%);
  pointer-events:none;
  z-index:-1;
}
.article-head h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:700;
  letter-spacing:-.02em;
  margin:16px 0 18px;
  max-width:22ch;
  color:var(--text);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6;}
.article-meta time{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* 正文布局 */
.article-wrap{padding:64px 0 72px;}
@media (min-width:1024px){.article-wrap{padding:84px 0 96px;}}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:44px;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:56px;align-items:start;}
}

.prose{max-width:800px;min-width:0;}
.prose > *:first-child{margin-top:0;}
.prose p{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  margin:0 0 1.2em;
}
.prose h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  font-weight:600;
  color:var(--text);
  margin:2.1em 0 .8em;
  padding-left:15px;
  line-height:1.4;
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.18em;
  bottom:.18em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(34,211,238,0));
}
.prose h3{
  font-size:19px;
  font-weight:600;
  color:var(--text);
  margin:1.7em 0 .55em;
}
.prose h4{font-size:17px;font-weight:600;color:var(--text);margin:1.4em 0 .5em;}
.prose a{color:var(--primary-soft);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(125,233,247,.4);}
.prose a:hover{color:#fff;text-decoration-color:var(--primary);}
.prose ul,.prose ol{margin:0 0 1.35em;padding-left:1.35em;color:var(--text-2);}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin-bottom:.55em;line-height:1.8;}
.prose li::marker{color:var(--primary);}
.prose blockquote{
  margin:1.7em 0;
  padding:16px 20px;
  border-left:3px solid var(--primary);
  background:rgba(34,211,238,.06);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img,
.prose figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:16px;
  border:1px solid var(--line);
  margin:1.6em 0;
}
.prose figure{margin:1.6em 0;}
.prose figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  margin-top:10px;
}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:1.7em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
}
.prose th{
  background:var(--panel-2);
  color:var(--text);
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.prose td{
  padding:12px 14px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  line-height:1.7;
}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
.prose tbody tr:last-child td{border-bottom:0;}
.prose code{
  font-family:var(--mono);
  font-size:.92em;
  background:rgba(34,211,238,.1);
  color:var(--primary-soft);
  padding:2px 6px;
  border-radius:6px;
}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

/* 目录 */
.toc{display:none;}
@media (min-width:1024px){
  .toc{
    display:block;
    position:sticky;
    top:112px;
    padding:20px;
    border-radius:var(--radius-lg);
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08), var(--shadow);
  }
}
.toc-title{
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--text-3);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.toc-title::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(34,211,238,.14);
}
.toc-list li{border-bottom:1px solid var(--line);}
.toc-list li:last-child{border-bottom:0;}
.toc-list a{
  display:block;
  padding:10px 0;
  font-size:14px;
  color:var(--text-2);
  transition:color .18s ease-out, padding-left .18s ease-out;
}
.toc-list a:hover{color:var(--primary-soft);padding-left:6px;}
.toc-note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
  line-height:1.7;
}

/* 空态 */
.empty-state{
  padding:56px 24px;
  text-align:center;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.empty-state .icon{
  width:52px;height:52px;
  margin:0 auto 18px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1px solid var(--line);
  color:var(--text-3);
  background:rgba(255,255,255,.03);
}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:8px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* 结尾操作条 */
.article-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  margin-top:48px;
  padding:20px 22px;
  border-radius:var(--radius-lg);
  background:var(--panel);
  border:1px solid var(--line);
}
.article-actions .tip{font-size:14px;color:var(--text-3);}
.article-actions .group{display:flex;flex-wrap:wrap;gap:12px;}

/* 相关推荐 */
.related{padding:0 0 96px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:600;
}
.section-head .sub{font-size:14px;color:var(--text-3);margin-top:6px;}
.section-head .more{
  font-size:14px;
  color:var(--primary-soft);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color .18s ease-out, gap .18s ease-out;
  white-space:nowrap;
}
.section-head .more:hover{color:#fff;gap:10px;}

.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}

.card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-lg);
  background:var(--panel);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .22s ease-out, border-color .22s ease-out, box-shadow .22s ease-out;
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(34,211,238,.3);
  box-shadow:0 22px 42px -26px rgba(0,0,0,.9), 0 0 0 1px rgba(34,211,238,.12);
}
.card-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel-2);
}
.card-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card:hover .card-body h3{color:var(--primary-soft);}
.card-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  padding-top:12px;
  border-top:1px solid var(--line);
}
.card-meta time{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* 页脚 */
.footer{
  position:relative;
  z-index:1;
  background:var(--panel);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.6),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-desc{font-size:14px;color:var(--text-2);line-height:1.75;max-width:34ch;}
.foot-social{display:flex;gap:10px;margin-top:18px;}
.foot-social span{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--text-3);
  background:rgba(255,255,255,.03);
  transition:color .18s ease-out, border-color .18s ease-out;
}
.foot-social span:hover{color:var(--primary-soft);border-color:rgba(34,211,238,.35);}
.foot-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--text-2);transition:color .18s ease-out, padding-left .18s ease-out;}
.foot-links a:hover{color:var(--primary-soft);padding-left:4px;}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2);}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  justify-content:space-between;
  align-items:center;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* roulang page: category2 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --panel-2:#111C33;
    --line:rgba(255,255,255,.08);
    --glass:rgba(255,255,255,.05);
    --primary:#22D3EE;
    --primary-soft:#7DE9F7;
    --accent:#F5A524;
    --ok:#2FD6A8;
    --text:#E9F1FB;
    --text-2:#A7B6CC;
    --text-3:#6E7F99;
    --r-card:20px;
    --r-sm:16px;
    --r-pill:999px;
    --shadow-card:0 20px 40px -24px rgba(0,0,0,.8);
    --ease:cubic-bezier(.22,.61,.36,1);
    --font-title:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    --font-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(--bg);
    color:var(--text);
    font-family:var(--font-title);
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
    background-image:
      linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
    background-size:48px 48px;
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95),rgba(0,0,0,.15) 70%,transparent);
    mask-image:linear-gradient(180deg,rgba(0,0,0,.95),rgba(0,0,0,.15) 70%,transparent);
  }
  body::after{
    content:"";position:fixed;top:-200px;right:-160px;width:640px;height:640px;border-radius:50%;z-index:-1;pointer-events:none;
    background:radial-gradient(circle,rgba(34,211,238,.08),transparent 68%);
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.28;-0:;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
  .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

  /* ---------- 浮动 Dock 导航 ---------- */
  .dock-wrap{position:fixed;top:18px;left:0;right:0;z-index:80;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
  .dock{
    pointer-events:auto;width:100%;max-width:1024px;height:64px;
    display:flex;align-items:center;gap:14px;padding:0 10px 0 14px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:rgba(12,20,36,.62);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    box-shadow:0 20px 40px -24px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,255,255,.06);
    transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .dock.scrolled{background:rgba(9,15,28,.92);border-color:rgba(34,211,238,.18);box-shadow:0 24px 50px -26px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.06)}
  .dock-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding-right:6px}
  .logo-mark{
    width:32px;height:32px;border-radius:10px;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,var(--primary),#0E7C8F);
    color:#04121A;font-family:var(--font-mono);font-weight:700;font-size:13px;
    box-shadow:0 6px 18px -8px rgba(34,211,238,.7);
  }
  .logo-text{font-size:15.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
  .dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
  .dock-link{position:relative;padding:9px 14px;border-radius:var(--r-pill);font-size:14.5px;color:var(--text-2);white-space:nowrap;transition:color .18s var(--ease)}
  .dock-link::after{
    content:"";position:absolute;left:50%;bottom:2px;width:18px;height:3px;border-radius:3px;
    background:var(--primary);opacity:0;transform:translateX(-50%) scaleX(.3);
    transition:opacity .2s var(--ease),transform .2s var(--ease);
  }
  .dock-link:hover{color:#fff}
  .dock-link:hover::after{opacity:.5;transform:translateX(-50%) scaleX(1)}
  .dock-link.active{color:#fff}
  .dock-link.active::after{opacity:1;transform:translateX(-50%) scaleX(1)}
  .dock-right{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .dock-icon{
    width:38px;height:38px;border-radius:var(--r-pill);display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);
    transition:all .2s var(--ease);cursor:pointer;
  }
  .dock-icon:hover{color:#fff;border-color:rgba(34,211,238,.4)}
  .dock-burger{display:none}
  .dock-cta{display:inline-flex}

  .drawer{
    position:fixed;inset:0;z-index:90;background:rgba(6,10,20,.96);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    display:flex;flex-direction:column;padding:24px 24px 32px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  .drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
  .drawer-links{display:flex;flex-direction:column;gap:6px}
  .drawer-links a{
    padding:16px 4px;font-size:20px;font-weight:600;color:var(--text-2);
    border-bottom:1px solid var(--line);transition:color .18s var(--ease);
  }
  .drawer-links a.active,.drawer-links a:hover{color:#fff}
  .drawer-foot{margin-top:auto;padding-top:24px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-pill);
    font-size:14.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:all .2s var(--ease);white-space:nowrap;
  }
  .btn-primary{
    background:var(--primary);color:#04121A;
    box-shadow:0 0 0 1px rgba(34,211,238,.35),0 8px 30px -8px rgba(34,211,238,.45);
  }
  .btn-primary:hover{background:var(--primary-soft);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(34,211,238,.5),0 14px 38px -10px rgba(34,211,238,.6)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
  .btn-ghost:hover{border-color:rgba(34,211,238,.4);color:#fff;transform:translateY(-1px)}
  .btn-sm{height:40px;padding:0 16px;font-size:13.5px}

  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
    font-size:12.5px;line-height:1;letter-spacing:.02em;
    background:rgba(34,211,238,.12);color:var(--primary-soft);border:1px solid rgba(34,211,238,.22);
  }
  .badge-amber{background:rgba(245,165,36,.12);color:#F7C46A;border-color:rgba(245,165,36,.24)}
  .badge-ok{background:rgba(47,214,168,.12);color:#7BE7C7;border-color:rgba(47,214,168,.24)}
  .badge-plain{background:rgba(255,255,255,.04);color:var(--text-2);border-color:var(--line)}

  .glass{
    background:var(--glass);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  }

  /* ---------- 面包屑 & Hero ---------- */
  .page-top{padding-top:118px}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
  .crumb a{color:var(--text-2);transition:color .18s var(--ease)}
  .crumb a:hover{color:var(--primary-soft)}
  .crumb .sep{color:var(--text-3);opacity:.7}

  .cat-hero{position:relative;border-radius:24px;overflow:hidden;min-height:236px;display:flex;align-items:flex-end;border:1px solid var(--line)}
  .cat-hero > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
  .cat-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(6,10,20,.92),rgba(6,10,20,.66) 55%,rgba(6,10,20,.5))}
  .cat-hero-inner{position:relative;z-index:2;padding:28px 32px 30px;width:100%}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
    font-size:12.5px;color:var(--primary-soft);letter-spacing:.14em;
  }
  .eyebrow::before{content:"";width:20px;height:1px;background:var(--primary);display:inline-block}
  .cat-hero h1{font-size:clamp(30px,4.4vw,50px);font-weight:700;letter-spacing:-.02em}
  .cat-hero .hero-sub{margin-top:14px;max-width:660px;color:var(--text-2);font-size:16px;line-height:1.8}
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

  /* ---------- 通用区块 ---------- */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
  .section-head h2{font-size:clamp(24px,3vw,34px);font-weight:600}
  .section-head p{color:var(--text-2);font-size:15.5px;max-width:620px;margin-top:12px}
  .section-link{font-size:14px;color:var(--primary-soft);display:inline-flex;align-items:center;gap:6px;transition:gap .2s var(--ease)}
  .section-link:hover{gap:10px}

  /* ---------- 指标带 ---------- */
  .metrics{
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,rgba(17,28,51,.72),rgba(12,20,36,.5));
    position:relative;overflow:hidden;
  }
  .metrics::before{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
    background-image:linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
    background-size:48px 48px;
  }
  .metrics-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr)}
  .metric{padding:44px 26px;border-left:1px solid var(--line)}
  .metric:first-child{border-left:0}
  .metric-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:clamp(36px,5vw,54px);font-weight:700;line-height:1;color:var(--text)}
  .metric-num .unit{font-size:.42em;color:var(--primary);margin-left:6px;font-weight:600}
  .metric-label{margin-top:14px;font-size:14px;color:var(--text-2)}
  .metric-extra{margin-top:6px;font-size:12.5px;color:var(--text-3)}

  /* ---------- 主区：粘性目录 + 分组列表 ---------- */
  .route-layout{display:grid;grid-template-columns:272px 1fr;gap:34px;align-items:start}
  .route-toc{position:sticky;top:104px}
  .toc-panel{padding:20px 16px}
  .toc-title{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);margin-bottom:14px;padding:0 8px}
  .toc-link{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:11px 12px;border-radius:12px;font-size:14.5px;color:var(--text-2);
    border:1px solid transparent;transition:all .18s var(--ease);margin-bottom:2px;
  }
  .toc-link span.num{font-family:var(--font-mono);font-size:12px;color:var(--text-3)}
  .toc-link:hover{color:#fff;background:rgba(255,255,255,.04)}
  .toc-link.active{color:#fff;background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.28)}
  .toc-link.active span.num{color:var(--primary)}
  .toc-note{margin-top:16px;padding:16px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
  .toc-note .k{font-size:12px;color:var(--text-3)}
  .toc-note .v{font-size:14px;color:var(--text);margin-top:4px}

  .route-group{
    border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
    background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
    margin-bottom:24px;transition:border-color .22s var(--ease);
  }
  .route-group:hover{border-color:rgba(34,211,238,.22)}
  .group-head{padding:24px 24px 20px;border-bottom:1px solid var(--line);display:flex;gap:16px;align-items:flex-start}
  .group-index{
    flex:0 0 auto;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--accent);
    background:rgba(245,165,36,.1);border:1px solid rgba(245,165,36,.2);
  }
  .group-head h3{font-size:19px}
  .group-head p{margin-top:8px;color:var(--text-2);font-size:14.5px}

  .route-rows{display:block}
  .route-row{
    display:grid;grid-template-columns:110px 1fr 150px 20px;gap:18px;align-items:center;
    padding:18px 24px;border-bottom:1px solid var(--line);transition:all .18s var(--ease);
  }
  .route-rows .route-row:last-child{border-bottom:0}
  .route-row:hover{background:rgba(34,211,238,.05);transform:translateX(3px)}
  .route-row .row-main strong{display:block;font-size:15.5px;font-weight:600}
  .route-row .row-main em{display:block;font-style:normal;font-size:13.5px;color:var(--text-2);margin-top:4px}
  .route-row .row-meta{font-family:var(--font-mono);font-size:12.5px;color:var(--text-3);text-align:right}
  .route-row .row-arrow{color:var(--text-3);transition:color .18s var(--ease),transform .18s var(--ease)}
  .route-row:hover .row-arrow{color:var(--primary);transform:translateX(3px)}
  .route-tag{
    display:inline-flex;align-items:center;justify-content:center;height:26px;padding:0 10px;border-radius:8px;
    font-size:12px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);white-space:nowrap;
  }

  /* ---------- 线路对比卡 ---------- */
  .compare-wrap{position:relative}
  .compare-wrap::after{
    content:"";position:absolute;top:0;right:0;bottom:20px;width:90px;pointer-events:none;
    background:linear-gradient(90deg,transparent,rgba(6,10,20,.92));
  }
  .compare-track{
    display:flex;gap:22px;overflow-x:auto;padding:4px 0 20px;
    scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
  }
  .compare-track::-webkit-scrollbar{display:none}
  .compare-card{
    flex:0 0 318px;scroll-snap-align:start;
    border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
    background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
    transition:transform .22s var(--ease),border-color .22s var(--ease);
  }
  .compare-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.3)}
  .compare-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
  .compare-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
  .compare-card:hover .compare-cover img{transform:scale(1.03)}
  .compare-cover .badge{position:absolute;left:14px;top:14px}
  .compare-body{padding:20px}
  .compare-body h3{font-size:18px}
  .compare-body p{margin-top:10px;font-size:14px;color:var(--text-2)}
  .spec-list{margin-top:16px;border-top:1px solid var(--line)}
  .spec-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13.5px}
  .spec-row:last-child{border-bottom:0}
  .spec-row .k{color:var(--text-3)}
  .spec-row .v{color:var(--text);font-family:var(--font-mono);font-size:13px}

  /* ---------- 步骤时间线 ---------- */
  .timeline{position:relative;padding-left:30px;margin-top:8px}
  .timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--primary),rgba(34,211,238,0))}
  .tl-item{position:relative;padding-bottom:30px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{
    content:"";position:absolute;left:-30px;top:7px;width:14px;height:14px;border-radius:50%;
    background:var(--panel);border:2px solid var(--primary);box-shadow:0 0 0 4px rgba(34,211,238,.12);
  }
  .tl-step{font-family:var(--font-mono);font-size:12.5px;color:var(--accent);letter-spacing:.08em}
  .tl-item h3{font-size:17px;margin-top:6px}
  .tl-item p{margin-top:8px;color:var(--text-2);font-size:14.5px;max-width:660px}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:start}
  .faq-side{position:sticky;top:108px}
  .faq-side h2{font-size:clamp(24px,3vw,32px)}
  .faq-side p{margin-top:14px;color:var(--text-2);font-size:15px}
  .faq-list{display:flex;flex-direction:column;gap:12px}
  .faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.02);overflow:hidden;transition:border-color .2s var(--ease),background .2s var(--ease)}
  .faq-item:hover{border-color:rgba(34,211,238,.24)}
  .faq-item.open{border-color:rgba(34,211,238,.32);background:rgba(34,211,238,.04)}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
    padding:18px 20px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:16px;font-weight:600;color:var(--text);transition:box-shadow .2s var(--ease);
  }
  .faq-item.open .faq-q{box-shadow:inset 2px 0 0 var(--primary)}
  .faq-icon{flex:0 0 auto;color:var(--text-2);transition:transform .22s var(--ease),color .22s var(--ease)}
  .faq-item.open .faq-icon{transform:rotate(45deg);color:var(--primary)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-2);line-height:1.8}

  /* ---------- 通栏 CTA ---------- */
  .cta-band{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--line);min-height:270px;display:flex;align-items:center;justify-content:center;text-align:center;padding:52px 24px}
  .cta-band > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
  .cta-band::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(6,10,20,.74),rgba(6,10,20,.88))}
  .cta-inner{position:relative;z-index:2;max-width:640px}
  .cta-inner h2{font-size:clamp(24px,3.2vw,34px)}
  .cta-inner p{margin-top:14px;color:var(--text-2);font-size:15.5px}
  .cta-actions{display:flex;gap:14px;justify-content:center;margin-top:26px;flex-wrap:wrap}

  /* ---------- 页脚 ---------- */
  .footer{margin-top:96px;padding:64px 0 28px;position:relative;background:linear-gradient(180deg,rgba(12,20,36,.5),rgba(6,10,20,0))}
  .footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,238,.55),transparent)}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .brand-mark{
    width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,var(--primary),#0E7C8F);color:#04121A;
    font-family:var(--font-mono);font-weight:700;font-size:13px;
  }
  .brand-text{font-size:15.5px;font-weight:600}
  .foot-desc{color:var(--text-2);font-size:14px;max-width:340px}
  .foot-social{display:flex;gap:10px;margin-top:18px}
  .foot-social span{
    width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
    transition:all .2s var(--ease);
  }
  .foot-social span:hover{color:var(--primary);border-color:rgba(34,211,238,.35)}
  .foot-title{font-size:14px;font-weight:600;margin-bottom:16px}
  .foot-links{display:flex;flex-direction:column;gap:11px}
  .foot-links a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
  .foot-links a:hover{color:var(--primary-soft)}
  .foot-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--text-2)}
  .foot-bottom{
    margin-top:44px;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);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .route-layout{grid-template-columns:230px 1fr;gap:26px}
    .faq-layout{grid-template-columns:250px 1fr;gap:30px}
    .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  }
  @media (max-width:1023px){
    .section{padding:76px 0}
    .route-layout{grid-template-columns:1fr}
    .route-toc{position:static;margin-bottom:26px}
    .toc-panel{display:flex;flex-wrap:wrap;gap:8px;padding:16px}
    .toc-title{width:100%;margin-bottom:6px}
    .toc-link{margin-bottom:0;border:1px solid var(--line);background:rgba(255,255,255,.03)}
    .toc-note{display:none}
    .faq-layout{grid-template-columns:1fr}
    .faq-side{position:static}
    .metrics-grid{grid-template-columns:repeat(2,1fr)}
    .metric{border-left:0;border-top:1px solid var(--line)}
    .metric:nth-child(-n+2){border-top:0}
    .metric:nth-child(even){border-left:1px solid var(--line)}
    .foot-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:860px){
    .dock-nav{display:none}
    .dock-cta{display:none}
    .dock-burger{display:flex}
    .dock{justify-content:space-between}
  }
  @media (max-width:768px){
    body{font-size:16px}
    .container{padding:0 20px}
    .page-top{padding-top:104px}
    .section{padding:64px 0}
    .cat-hero{border-radius:18px;min-height:210px}
    .cat-hero-inner{padding:22px 20px 24px}
    .cat-hero .hero-sub{font-size:15px}
    .route-row{grid-template-columns:1fr 20px;gap:12px;padding:16px 18px}
    .route-row .row-meta{display:none}
    .route-row .row-tagcell{grid-column:1 / -1}
    .group-head{padding:20px 18px 16px}
    .compare-card{flex:0 0 268px}
    .cta-band{min-height:240px;padding:40px 20px}
    .cta-actions .btn{width:100%}
    .foot-grid{grid-template-columns:1fr;gap:28px}
    .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  }
  @media (max-width:520px){
    .metric{padding:32px 18px}
    .metric-num{font-size:36px}
    .compare-card{flex:0 0 84%}
    .compare-wrap::after{display:none}
  }

/* roulang page: category3 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --panel-2:#111C33;
    --line:rgba(255,255,255,.08);
    --glass:rgba(255,255,255,.05);
    --primary:#22D3EE;
    --primary-soft:#7DE9F7;
    --accent:#F5A524;
    --ok:#2FD6A8;
    --text:#E9F1FB;
    --text-2:#A7B6CC;
    --text-3:#6E7F99;
    --radius-sm:12px;
    --radius:16px;
    --radius-lg:20px;
    --shadow:0 20px 40px -24px rgba(0,0,0,.8);
    --container:1240px;
    --mono:ui-monospace,SFMono-Regular,"JetBrains Mono","Cascadia Mono",Menlo,Consolas,monospace;
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.lock{overflow:hidden}
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{background:none;border:0;color:inherit;cursor:pointer;font:inherit}
  ul{list-style:none}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
  .mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

  .grid-surface{
    background-color:var(--panel);
    background-image:
      linear-gradient(rgba(34,211,238,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(34,211,238,.05) 1px,transparent 1px);
    background-size:48px 48px;
  }

  /* ============ Dock 导航 ============ */
  .dock{
    position:fixed;
    top:16px;
    left:50%;
    transform:translateX(-50%);
    width:min(1024px,calc(100% - 32px));
    height:64px;
    z-index:60;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:0 12px 0 18px;
    border:1px solid var(--line);
    border-radius:999px;
    background:rgba(12,20,36,.62);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
    transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  }
  .dock.scrolled{
    background:rgba(8,14,26,.92);
    border-color:rgba(34,211,238,.2);
  }
  .dock-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:30px;height:30px;border-radius:9px;
    display:grid;place-items:center;
    font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.02em;
    color:#04121A;
    background:linear-gradient(140deg,var(--primary-soft),var(--primary));
    box-shadow:0 0 0 1px rgba(34,211,238,.35),0 8px 24px -10px rgba(34,211,238,.6);
  }
  .brand-text{font-size:15px;font-weight:600;white-space:nowrap}
  .dock-nav{display:flex;align-items:center;gap:2px}
  .dock-link{
    position:relative;
    padding:9px 14px;
    border-radius:999px;
    font-size:14px;
    color:var(--text-2);
    white-space:nowrap;
    transition:color .18s ease-out,background .18s ease-out;
  }
  .dock-link::after{
    content:"";
    position:absolute;left:50%;top:2px;
    width:0;height:3px;border-radius:3px;
    background:var(--primary);
    transform:translateX(-50%);
    opacity:0;
    transition:width .2s ease-out,opacity .2s ease-out;
  }
  .dock-link:hover{color:#fff;background:rgba(255,255,255,.04)}
  .dock-link:hover::after{width:18px;opacity:.7}
  .dock-link.active{color:#fff;background:rgba(34,211,238,.1)}
  .dock-link.active::after{width:22px;opacity:1}
  .dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .dock-toggle{
    display:none;
    width:40px;height:40px;border-radius:999px;
    border:1px solid var(--line);
    align-items:center;justify-content:center;
    color:var(--text-2);
    transition:border-color .18s ease-out,color .18s ease-out;
  }
  .dock-toggle:hover{color:#fff;border-color:rgba(34,211,238,.4)}

  /* 抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:70;
    background:rgba(6,10,20,.96);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    padding:96px 24px 32px;
    display:flex;flex-direction:column;gap:8px;
    transform:translateY(-8px);
    opacity:0;visibility:hidden;
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
  .drawer a.drawer-link{
    font-size:20px;font-weight:600;padding:14px 4px;
    border-bottom:1px solid var(--line);
    color:var(--text-2);
    transition:color .18s ease-out,padding-left .18s ease-out;
  }
  .drawer a.drawer-link:hover{color:#fff;padding-left:10px}
  .drawer a.drawer-link.active{color:#fff}
  .drawer-cta{margin-top:auto}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;
    border-radius:999px;
    font-size:15px;font-weight:600;
    white-space:nowrap;
    transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
  }
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .btn-primary{
    color:#04121A;
    background:var(--primary);
    box-shadow:0 0 0 1px rgba(34,211,238,.35),0 8px 30px -8px rgba(34,211,238,.45);
  }
  .btn-primary:hover{
    background:var(--primary-soft);
    transform:translateY(-1px);
    box-shadow:0 0 0 1px rgba(34,211,238,.5),0 14px 40px -8px rgba(34,211,238,.6);
  }
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{
    color:var(--text);
    border:1px solid var(--line);
    background:transparent;
  }
  .btn-ghost:hover{border-color:rgba(34,211,238,.4);color:#fff;transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 12px;
    border-radius:999px;
    font-size:12px;font-weight:600;
    color:var(--primary);
    background:rgba(34,211,238,.12);
  }
  .badge-accent{color:var(--accent);background:rgba(245,165,36,.13)}
  .badge-ok{color:var(--ok);background:rgba(47,214,168,.13)}

  /* ============ 面包屑 ============ */
  .crumb-wrap{padding-top:104px}
  .crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
  .crumb a{color:var(--text-2);transition:color .18s ease-out}
  .crumb a:hover{color:var(--primary)}
  .crumb span{color:var(--text-3)}
  .crumb .crumb-cur{color:var(--text-2)}

  /* ============ Hero 条 ============ */
  .page-hero{
    position:relative;
    margin-top:20px;
    border:1px solid var(--line);
    border-radius:24px;
    overflow:hidden;
    min-height:240px;
    display:flex;
    align-items:flex-end;
    padding:40px;
    box-shadow:var(--shadow);
  }
  .page-hero img{
    position:absolute;inset:0;
    width:100%;height:100%;
    object-fit:cover;
    opacity:.42;
  }
  .page-hero-mask{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,10,20,.35),rgba(6,10,20,.9) 78%);
  }
  .page-hero-body{position:relative;z-index:2;max-width:760px}
  .eyebrow{
    display:inline-block;
    font-size:12px;letter-spacing:.02em;
    color:var(--primary);
    margin-bottom:14px;
    padding:4px 12px;
    border:1px solid rgba(34,211,238,.28);
    border-radius:999px;
    background:rgba(34,211,238,.07);
  }
  .page-hero h1{
    font-size:clamp(30px,4.4vw,52px);
    font-weight:700;
    letter-spacing:-.02em;
    line-height:1.18;
    margin-bottom:14px;
  }
  .page-hero p{font-size:16px;color:var(--text-2);max-width:660px}

  /* ============ 区块通用 ============ */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-head{margin-bottom:44px;max-width:760px}
  .section-head h2{
    font-size:clamp(24px,3vw,34px);
    font-weight:600;
    letter-spacing:-.01em;
    line-height:1.3;
    margin-bottom:14px;
  }
  .section-head p{color:var(--text-2);font-size:16px}
  .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

  /* ============ 规格 / 对比卡 ============ */
  .spec-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:22px;
  }
  .spec-card{
    position:relative;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    background:var(--glass);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:26px;
    box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
    transition:transform .2s ease-out,border-color .2s ease-out;
  }
  .spec-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.3)}
  .spec-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
  .spec-head h3{font-size:18px;font-weight:600;line-height:1.4}
  .spec-rows{border-top:1px solid var(--line)}
  .spec-rows .row{
    display:grid;
    grid-template-columns:96px minmax(0,1fr);
    gap:14px;
    padding:12px 0;
    border-bottom:1px solid var(--line);
  }
  .spec-rows dt{font-size:13px;color:var(--text-3)}
  .spec-rows dd{font-size:14.5px;color:var(--text)}
  .spec-rows .row:last-child{border-bottom:0}
  .cost{font-family:var(--mono);color:var(--accent);font-variant-numeric:tabular-nums}

  /* ============ 步骤时间线 ============ */
  .flow-grid{
    display:grid;
    grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
    gap:48px;
    align-items:start;
  }
  .flow{position:relative;padding-left:34px}
  .flow::before{
    content:"";
    position:absolute;left:9px;top:8px;bottom:8px;
    width:2px;
    background:linear-gradient(180deg,var(--primary),rgba(34,211,238,0));
    border-radius:2px;
  }
  .flow-item{position:relative;padding-bottom:34px}
  .flow-item:last-child{padding-bottom:0}
  .flow-item::before{
    content:"";
    position:absolute;left:-31px;top:8px;
    width:12px;height:12px;border-radius:50%;
    background:var(--bg);
    border:2px solid var(--primary);
    box-shadow:0 0 0 4px rgba(34,211,238,.1);
  }
  .flow-num{
    font-family:var(--mono);font-size:13px;color:var(--accent);
    font-variant-numeric:tabular-nums;
    margin-bottom:6px;
    display:block;
  }
  .flow-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
  .flow-item p{font-size:15px;color:var(--text-2)}

  .side-card{
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    background:var(--panel);
    overflow:hidden;
    box-shadow:var(--shadow);
  }
  .side-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .side-card-body{padding:22px}
  .side-card-body h4{font-size:17px;font-weight:600;margin-bottom:8px}
  .side-card-body p{font-size:14.5px;color:var(--text-2)}
  .side-list{margin-top:16px;border-top:1px solid var(--line)}
  .side-list li{
    display:flex;justify-content:space-between;gap:12px;
    padding:10px 0;border-bottom:1px solid var(--line);
    font-size:14px;color:var(--text-2);
  }
  .side-list li:last-child{border-bottom:0}
  .side-list strong{color:var(--text);font-weight:600;font-family:var(--mono);font-variant-numeric:tabular-nums}

  /* ============ 环境对照（粘性左栏 + 行列表） ============ */
  .env-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:48px;align-items:start}
  .env-sticky{position:sticky;top:104px}
  .env-sticky h2{font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.3;margin-bottom:14px}
  .env-sticky p{color:var(--text-2);font-size:15.5px}
  .env-group{margin-bottom:34px}
  .env-group:last-child{margin-bottom:0}
  .env-group h3{
    font-size:15px;font-weight:600;color:var(--primary);
    display:flex;align-items:center;gap:10px;margin-bottom:14px;
  }
  .env-group h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary)}
  .env-rows{border-top:1px solid var(--line)}
  .env-row{
    display:grid;grid-template-columns:150px minmax(0,1fr);
    gap:18px;padding:14px 0;border-bottom:1px solid var(--line);
    transition:background .18s ease-out;
  }
  .env-row:hover{background:rgba(34,211,238,.04)}
  .env-row .k{font-size:14px;color:var(--text-3)}
  .env-row .v{font-size:14.5px;color:var(--text)}
  .env-row .v em{font-style:normal;color:var(--accent);font-family:var(--mono);font-variant-numeric:tabular-nums}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.6fr);gap:48px;align-items:start}
  .faq-intro{position:sticky;top:104px}
  .faq-intro h2{font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.3;margin-bottom:14px}
  .faq-intro p{color:var(--text-2);font-size:15.5px;margin-bottom:22px}
  .faq-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .faq-card{
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    background:var(--panel);
    padding:10px 24px;
    box-shadow:var(--shadow);
  }
  .faq-card > h3{
    font-size:14px;color:var(--text-3);font-weight:500;
    padding:14px 0 12px;border-bottom:1px solid var(--line);
  }
  .faq-item{border-bottom:1px solid var(--line);position:relative}
  .faq-item:last-child{border-bottom:0}
  .faq-item::before{
    content:"";position:absolute;left:-24px;top:14px;bottom:14px;
    width:2px;border-radius:2px;background:var(--primary);
    opacity:0;transition:opacity .2s ease-out;
  }
  .faq-item[open]::before{opacity:1}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:16px 0;
    font-size:15.5px;font-weight:600;line-height:1.6;
    color:var(--text);
    transition:color .18s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--primary-soft)}
  .faq-plus{
    flex:0 0 auto;width:20px;height:20px;margin-top:3px;
    color:var(--primary);
    transition:transform .22s ease-out;
  }
  .faq-item[open] .faq-plus{transform:rotate(45deg)}
  .faq-item .ans{padding:0 0 18px;font-size:14.5px;color:var(--text-2);line-height:1.8}

  /* ============ CTA 通栏 ============ */
  .cta-band{
    position:relative;
    border:1px solid var(--line);
    border-radius:24px;
    overflow:hidden;
    min-height:280px;
    display:flex;align-items:center;justify-content:center;
    text-align:center;
    padding:56px 32px;
  }
  .cta-band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32}
  .cta-band .mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.62),rgba(6,10,20,.92))}
  .cta-body{position:relative;z-index:2;max-width:700px}
  .cta-body h2{font-size:clamp(22px,2.8vw,32px);font-weight:600;line-height:1.35;margin-bottom:14px}
  .cta-body p{color:var(--text-2);font-size:15.5px;margin-bottom:26px}
  .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

  /* ============ 页脚 ============ */
  .footer{
    margin-top:96px;
    padding:64px 0 32px;
    background:var(--panel);
    border-top:1px solid var(--line);
    position:relative;
  }
  .footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,rgba(34,211,238,0),var(--primary),rgba(34,211,238,0));
    opacity:.6;
  }
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .foot-desc{font-size:14px;color:var(--text-2);max-width:320px}
  .foot-social{display:flex;gap:10px;margin-top:20px}
  .foot-social span{
    width:34px;height:34px;border-radius:10px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    color:var(--text-2);
    transition:border-color .18s ease-out,color .18s ease-out;
  }
  .foot-social span:hover{border-color:rgba(34,211,238,.4);color:var(--primary)}
  .foot-title{font-size:14px;font-weight:600;margin-bottom:16px}
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-links a{font-size:14px;color:var(--text-2);transition:color .18s ease-out}
  .foot-links a:hover{color:var(--primary)}
  .foot-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
  .foot-bottom{
    margin-top:48px;padding-top:22px;
    border-top:1px solid var(--line);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--text-3);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .dock-nav{display:none}
    .dock-toggle{display:flex}
    .dock-actions .btn{display:none}
    .spec-grid{grid-template-columns:1fr}
    .flow-grid{grid-template-columns:1fr;gap:36px}
    .env-grid{grid-template-columns:1fr;gap:32px}
    .env-sticky{position:static}
    .faq-layout{grid-template-columns:1fr;gap:32px}
    .faq-intro{position:static}
    .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  }
  @media (max-width:767px){
    .container{padding:0 20px}
    .section{padding:64px 0}
    .section-tight{padding:48px 0}
    .crumb-wrap{padding-top:92px}
    .page-hero{padding:26px 22px;min-height:200px;border-radius:20px}
    .page-hero p{font-size:15px}
    .brand-text{font-size:14px}
    .faq-cols{grid-template-columns:1fr}
    .spec-rows .row{grid-template-columns:1fr;gap:4px}
    .env-row{grid-template-columns:1fr;gap:4px}
    .cta-band{padding:44px 22px;border-radius:20px}
    .cta-actions .btn{width:100%}
    .foot-bottom{flex-direction:column;gap:8px}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:28px}
    .flow{padding-left:28px}
    .flow-item::before{left:-25px}
    .faq-card{padding:8px 18px}
    .faq-item::before{left:-18px}
  }