/* roulang page: index */
:root{
  --ink-900:#060A12;--ink-800:#0B111C;--ink-700:#121A29;--ink-600:#1A2434;
  --line:rgba(255,255,255,.09);--line-strong:rgba(255,255,255,.16);
  --brand-500:#19E3A6;--brand-400:#4DEBC0;--brand-600:#0FB98A;--brand-cyan:#12C7D8;
  --accent-400:#FFB340;
  --text-hi:#E8EEF7;--text-mid:#A6B3C6;--text-low:#6C7A90;
  --glass-bg:rgba(255,255,255,.055);--glass-bg-2:rgba(255,255,255,.085);
  --glass-blur:14px;
  --shadow-glass:0 24px 64px -32px rgba(0,0,0,.85);
  --glow-brand:0 12px 40px -12px rgba(25,227,166,.55);
  --glow-soft:0 0 0 1px rgba(25,227,166,.28);
  --r-card:20px;--r-panel:16px;--r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-mid);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
::selection{background:rgba(25,227,166,.28);color:#fff}

/* ---------- 布局容器 ---------- */
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:88px 0;position:relative}
.section--tight{padding:64px 0}
.hairline{height:1px;background:var(--line);border:0;margin:0}
.txt-balance{text-wrap:balance}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;width:100%;max-width:1080px;display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(11,17,28,.74);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 44px -28px rgba(0,0,0,.92);
  transition:max-width .28s ease-out,background .28s ease-out,box-shadow .28s ease-out,border-color .28s ease-out;
}
.dock.is-compact{max-width:1040px;background:rgba(9,14,24,.92);box-shadow:0 26px 64px -30px rgba(0,0,0,.96);border-color:var(--line-strong)}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;min-height:44px}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(25,227,166,.22),rgba(18,199,216,.14));
  border:1px solid rgba(25,227,166,.32);box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-text b{color:var(--text-hi);font-size:14.5px;font-weight:700;letter-spacing:.02em}
.logo-text span{color:var(--text-low);font-size:11.5px;letter-spacing:.16em}
.dock-links{display:flex;align-items:center;gap:4px;margin:0 auto;list-style:none}
.dock-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--text-mid);
  transition:color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.dock-links a:hover{color:var(--text-hi);background:rgba(255,255,255,.06);transform:translateY(-1px)}
.dock-links a.is-active{color:var(--text-hi)}
.dock-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:6px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand-500);box-shadow:0 0 10px rgba(25,227,166,.9);
}
.dock-cta{flex-shrink:0}
.dock-toggle{
  display:none;width:44px;height:44px;flex-shrink:0;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:var(--glass-bg);cursor:pointer;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.dock-toggle:hover{border-color:rgba(25,227,166,.4);background:var(--glass-bg-2)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:70;display:flex;flex-direction:column;padding:26px 24px 40px;
  background:rgba(6,10,18,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:32px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--glass-bg);cursor:pointer;display:flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 18px;
  border-radius:14px;border:1px solid transparent;color:var(--text-hi);font-size:17px;font-weight:600;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--glass-bg);border-color:rgba(25,227,166,.3)}
.drawer-cta{margin-top:28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;
  border-radius:14px;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:linear-gradient(135deg,var(--brand-500),var(--brand-cyan));color:#04140F;
  box-shadow:var(--glow-brand),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 48px -12px rgba(25,227,166,.72),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 20px -8px rgba(25,227,166,.5),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--brand-400)}
.btn-ghost:hover{border-color:rgba(25,227,166,.45);background:rgba(25,227,166,.06);box-shadow:var(--glow-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;border-radius:12px}

/* ---------- 玻璃卡片 ---------- */
.card-glass{
  background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
  backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
a.card-glass:hover{border-color:rgba(25,227,166,.35);transform:translateY(-2px);box-shadow:0 30px 72px -32px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.1)}

/* ---------- 通用文本组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.1em;
  color:var(--brand-400);text-transform:none;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent)}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;letter-spacing:.02em;
  background:rgba(25,227,166,.12);color:var(--brand-400);border:1px solid rgba(25,227,166,.24);
}
.chip--amber{background:rgba(255,179,64,.12);color:var(--accent-400);border-color:rgba(255,179,64,.26)}
.chip--plain{background:rgba(255,255,255,.06);color:var(--text-mid);border-color:var(--line)}
h1{font-size:clamp(34px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-.01em;color:var(--text-hi)}
h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:650;color:var(--text-hi);letter-spacing:-.005em}
h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--text-hi)}
.lead{font-size:17px;line-height:1.85;color:var(--text-mid)}
.muted{color:var(--text-low);font-size:14px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;line-height:1.8;color:var(--text-mid)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;flex-wrap:wrap}
.link-more{color:var(--brand-400);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:44px;transition:color .18s ease-out,gap .18s ease-out}
.link-more:hover{color:var(--brand-500);gap:10px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:158px 0 76px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 520px at 78% 12%,rgba(25,227,166,.13),transparent 62%),
    radial-gradient(700px 420px at 8% 78%,rgba(18,199,216,.09),transparent 66%),
    linear-gradient(180deg,rgba(6,10,18,.78) 0%,rgba(6,10,18,.92) 58%,var(--ink-900) 100%);
}
.hero > .shell{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy h1{margin-bottom:20px}
.hero-copy .lead{max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px 40px;list-style:none;padding-top:26px;border-top:1px solid var(--line)}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics strong{font-size:26px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-metrics span{font-size:13.5px;color:var(--text-low);letter-spacing:.02em}
.hero-visual{position:relative}
.hero-panel{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-glass)}
.hero-panel img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-panel-tag{
  position:absolute;left:16px;top:16px;display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--brand-400);
  background:rgba(6,10,18,.72);border:1px solid rgba(25,227,166,.3);backdrop-filter:blur(8px);
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand-500);box-shadow:0 0 10px rgba(25,227,166,.9);flex-shrink:0}
.float-card{
  position:absolute;display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--r-panel);
  background:rgba(11,17,28,.86);border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 20px 50px -26px rgba(0,0,0,.95);
}
.float-card b{display:block;font-size:13.5px;color:var(--text-hi);font-weight:600}
.float-card span{display:block;font-size:12.5px;color:var(--text-low)}
.float-card--a{left:-26px;bottom:52px}
.float-card--b{right:-14px;top:-22px}

/* ---------- 分栏 ---------- */
.split-5-7{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.split-7-5{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:start}

/* ---------- 编号列表 ---------- */
.num-list{list-style:none;border-top:1px solid var(--line)}
.num-list li{display:flex;gap:22px;padding:24px 10px;border-bottom:1px solid var(--line);transition:background .18s ease-out}
.num-list li:hover{background:rgba(255,255,255,.03)}
.num-list .num{font-size:14px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;letter-spacing:.06em;padding-top:5px;min-width:34px}
.num-list h3{margin-bottom:6px;font-size:18px}
.num-list p{font-size:15px;line-height:1.7;color:var(--text-mid)}

/* ---------- 方案视觉与能力条目 ---------- */
.sol-visual{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-glass);position:relative}
.sol-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sol-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:var(--text-mid);
  background:linear-gradient(180deg,rgba(6,10,18,0),rgba(6,10,18,.9));
}
.sol-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.sol-item:last-child{border-bottom:0}
.sol-icon{
  width:44px;height:44px;flex-shrink:0;border-radius:var(--r-pill);display:flex;align-items:center;justify-content:center;
  background:var(--glass-bg-2);border:1px solid var(--line);color:var(--brand-400);
}
.sol-item h3{font-size:17.5px;margin-bottom:6px}
.sol-item p{font-size:15px;line-height:1.7;color:var(--text-mid)}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.step{
  padding:18px 20px;border-radius:var(--r-panel);border:1px solid var(--line);background:var(--glass-bg);
  position:relative;min-height:64px;transition:border-color .18s ease-out,background .18s ease-out;
}
.step:hover{border-color:rgba(25,227,166,.32);background:var(--glass-bg-2)}
.step b{display:block;font-size:13px;color:var(--brand-400);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.step span{display:block;margin-top:6px;color:var(--text-hi);font-size:15px;font-weight:600}

/* ---------- 数据带 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);overflow:hidden;
}
.stat{padding:34px 28px;position:relative}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:22%;height:56%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(25,227,166,.55),transparent);
}
.stat strong{display:block;font-size:clamp(30px,3.4vw,44px);line-height:1.1;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat em{font-style:normal;font-size:14px;color:var(--text-low);margin-left:6px}
.stat p{margin-top:10px;font-size:14px;line-height:1.65;color:var(--text-mid)}

/* ---------- 客户证言 ---------- */
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.quote-card{padding:32px}
.quote-card:nth-child(2){margin-top:72px}
.quote-card blockquote{margin:0 0 24px;font-size:16.5px;line-height:1.85;color:var(--text-hi);font-weight:500}
.quote-foot{display:flex;align-items:center;gap:14px;padding-top:20px;border-top:1px solid var(--line)}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(25,227,166,.28),rgba(18,199,216,.18));
  border:1px solid rgba(25,227,166,.3);color:var(--brand-400);font-weight:700;font-size:15px;
}
.quote-foot b{display:block;font-size:14.5px;color:var(--text-hi);font-weight:600}
.quote-foot span{display:block;font-size:13px;color:var(--text-low)}
.quote-mark{font-size:40px;line-height:1;color:rgba(25,227,166,.35);font-weight:700;margin-bottom:8px}

/* ---------- 最新信息（CMS 列表） ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.news-side{display:grid;gap:24px}
.news-lead{display:block;overflow:hidden;padding:0}
.news-lead figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
.news-lead img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.news-lead:hover img{transform:translateY(-2px)}
.news-lead .body{padding:24px 26px 26px}
.news-lead h3{font-size:20px;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-lead p{font-size:15px;line-height:1.75;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:16px;align-items:center}
.news-row figure{margin:0;width:96px;height:72px;border-radius:12px;overflow:hidden;background:var(--ink-700);flex-shrink:0}
.news-row img{width:100%;height:100%;object-fit:cover}
.news-row h3{font-size:16px;line-height:1.45;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{font-size:13.5px;line-height:1.6;color:var(--text-low);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap}
.card-meta time{font-size:13px;color:var(--text-low);font-variant-numeric:tabular-nums}
.news-row .card-meta{margin-top:8px;gap:10px}
.news-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:180px;padding:32px;text-align:center;
}
.news-empty b{color:var(--text-hi);font-size:16px;font-weight:600}
.news-empty span{color:var(--text-low);font-size:14px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:14px}
.faq-item{overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;min-height:64px;color:var(--text-hi);font-size:16.5px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform .2s ease-out}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand-400);border-radius:2px}
.faq-plus::before{left:9px;top:2px;width:2px;height:16px}
.faq-plus::after{top:9px;left:2px;height:2px;width:16px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-item[open]{border-color:rgba(25,227,166,.3)}
.faq-item p{padding:0 24px 22px;font-size:15.5px;line-height:1.8;color:var(--text-mid)}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  padding:56px 48px;min-height:200px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  background:var(--glass-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-glass);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 320px at 88% 20%,rgba(25,227,166,.16),transparent 64%);
}
.cta-band > *{position:relative;z-index:2}
.cta-copy{max-width:620px}
.cta-copy h2{margin-bottom:14px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:var(--ink-800);padding:64px 0 0;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding-bottom:56px}
.foot-brand p{font-size:14.5px;line-height:1.8;color:var(--text-mid);margin-top:18px;max-width:320px}
.foot-col h3{font-size:14px;letter-spacing:.04em;color:var(--text-hi);font-weight:600;margin-bottom:18px}
.foot-col ul{list-style:none;display:grid;gap:12px}
.foot-col a,.foot-col span{display:inline-block;font-size:14.5px;color:var(--text-mid);transition:color .18s ease-out,transform .18s ease-out}
.foot-col a:hover{color:var(--brand-400);transform:translateX(2px)}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-low);
}

/* ---------- 返回顶部 ---------- */
.backtop{
  position:fixed;right:24px;bottom:24px;z-index:55;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);
  background:rgba(11,17,28,.85);backdrop-filter:blur(10px);color:var(--brand-400);cursor:pointer;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.backtop.is-show{opacity:1;visibility:visible}
.backtop:hover{border-color:rgba(25,227,166,.5);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  .shell{padding:0 32px}
  .section{padding:72px 0}
  .dock-links{display:none}
  .dock-cta{display:none}
  .dock-toggle{display:inline-flex}
  .dock{margin-left:auto;gap:12px;padding:8px 10px 8px 16px}
  .hero{padding:140px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:44px;min-height:auto}
  .split-5-7,.split-7-5{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat + .stat::before{display:none}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line)}
  .stat:nth-child(2),.stat:nth-child(4){border-left:1px solid var(--line)}
  .quotes{grid-template-columns:1fr;gap:24px}
  .quote-card:nth-child(2){margin-top:0}
  .news-grid{grid-template-columns:1fr}
  .float-card--a,.float-card--b{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8}
  .shell{padding:0 20px}
  .section{padding:52px 0}
  .dock-wrap{top:12px;padding:0 12px}
  .dock{max-width:100%;border-radius:22px}
  .logo-text b{font-size:13.5px}
  .logo-text span{font-size:10.5px;letter-spacing:.12em}
  .hero{padding:122px 0 52px}
  .hero::before{background-position:center top}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:16px 28px;padding-top:22px}
  .hero-metrics strong{font-size:22px}
  .steps{grid-template-columns:1fr}
  .stat{padding:26px 22px}
  .section-head{margin-bottom:32px}
  .cta-band{padding:34px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-item summary{font-size:15.5px;padding:16px 18px}
  .faq-item p{padding:0 18px 18px;font-size:14.5px}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .backtop{right:16px;bottom:16px}
  .news-row{grid-template-columns:80px 1fr;padding:14px}
  .news-row figure{width:80px;height:64px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#060A12; --ink-800:#0B111C; --ink-700:#121A29; --ink-600:#1A2434;
  --line:rgba(255,255,255,.09); --line-strong:rgba(255,255,255,.16);
  --brand-500:#19E3A6; --brand-400:#4DEBC0; --brand-600:#0FB98A; --brand-cyan:#12C7D8;
  --accent-400:#FFB340;
  --text-hi:#E8EEF7; --text-mid:#A6B3C6; --text-low:#6C7A90;
  --glass-bg:rgba(255,255,255,.055); --glass-bg-2:rgba(255,255,255,.085);
  --glass-blur:14px;
  --shadow-glass:0 24px 64px -32px rgba(0,0,0,.85);
  --glow-brand:0 12px 40px -12px rgba(25,227,166,.55);
  --glow-soft:0 0 0 1px rgba(25,227,166,.28);
  --r-card:20px; --r-panel:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-mid);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
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}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:650}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.shell{max-width:1240px;margin:0 auto;padding:0 40px}
.num{font-variant-numeric:tabular-nums}
.txt-balance{text-wrap:balance}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;display:flex;align-items:center;gap:10px;width:100%;max-width:1080px;
  padding:10px 12px 10px 18px;border-radius:999px;
  background:rgba(11,17,28,.72);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:max-width .25s ease-out,background-color .25s ease-out,box-shadow .25s ease-out;
}
.dock.is-scrolled{max-width:1040px;background:rgba(11,17,28,.9);box-shadow:0 28px 70px -34px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.08)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:rgba(25,227,166,.12);border:1px solid rgba(25,227,166,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{color:var(--text-hi);font-size:15px;font-weight:650;letter-spacing:.02em}
.logo-text span{color:var(--text-low);font-size:11.5px;letter-spacing:.14em}
.dock-links{display:flex;align-items:center;gap:4px;margin-left:auto;margin-right:auto}
.dock-links li a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-mid);white-space:nowrap;
}
.dock-links li a:hover{color:var(--text-hi);background:rgba(255,255,255,.05);transform:translateY(-1px)}
.dock-links li a.is-active{color:var(--text-hi)}
.dock-links li a.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand-500);box-shadow:0 0 12px rgba(25,227,166,.9)
}
.dock-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:999px;background:var(--glass-bg);border:1px solid var(--line);cursor:pointer}
.dock-toggle:hover{border-color:rgba(25,227,166,.4)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;font-size:15px;font-weight:600;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,background-color .18s ease-out,color .18s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-500),var(--brand-cyan));color:#04140F;
  box-shadow:var(--glow-brand),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px -14px rgba(25,227,166,.7),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 26px -12px rgba(25,227,166,.6)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--brand-400)}
.btn-ghost:hover{border-color:rgba(25,227,166,.45);color:var(--brand-500);box-shadow:var(--glow-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.dock-cta{flex:0 0 auto}

/* ---------- 抽屉导航 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;flex-direction:column;gap:8px;
  padding:26px 22px 40px;background:rgba(6,10,18,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.drawer.is-open{display:flex;animation:drawerIn .2s ease-out both}
@keyframes drawerIn{from{opacity:0}to{opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:999px;background:var(--glass-bg);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;cursor:pointer}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 16px;
  border-bottom:1px solid var(--line);font-size:16px;color:var(--text-hi)
}
.drawer a.drawer-link:hover{background:rgba(255,255,255,.04);color:var(--brand-400)}
.drawer .btn{margin-top:22px;width:100%}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);letter-spacing:.04em}
.crumb a:hover{color:var(--brand-400)}
.crumb .sep{opacity:.5}
.crumb .cur{color:var(--text-mid)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:150px 0 72px}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.5;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 380px at 78% 8%,rgba(25,227,166,.12),transparent 66%),
    radial-gradient(520px 320px at 10% 90%,rgba(18,199,216,.09),transparent 70%),
    linear-gradient(180deg,rgba(6,10,18,.86) 0%,rgba(6,10,18,.62) 45%,rgba(6,10,18,.98) 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2;max-width:860px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,179,64,.12);color:var(--accent-400);font-size:13px;letter-spacing:.06em;margin-bottom:20px
}
.hero h1{
  font-size:clamp(34px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-.01em;margin-bottom:18px
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-mid);max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low);letter-spacing:.04em}
.hero-meta b{color:var(--accent-400);font-weight:650}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-title{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:650;margin-bottom:14px}
.section-sub{color:var(--text-mid);font-size:15.5px;line-height:1.8}
.hairline{height:1px;background:var(--line);border:0;margin:0}
.glass-card{
  background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.glass-card:hover{border-color:rgba(25,227,166,.35);transform:translateY(-2px);box-shadow:0 30px 74px -30px rgba(0,0,0,.92),inset 0 1px 0 rgba(255,255,255,.1)}
.chip{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;font-size:13px;letter-spacing:.04em}

/* ---------- 横条列表 ---------- */
.rows{border-top:1px solid var(--line)}
.row-item{display:grid;grid-template-columns:64px minmax(0,1fr) 200px;gap:24px;align-items:center;padding:22px 8px;border-bottom:1px solid var(--line);transition:background-color .18s ease-out}
.row-item:hover{background:rgba(255,255,255,.03)}
.row-num{font-size:20px;font-weight:650;color:var(--accent-400);font-variant-numeric:tabular-nums}
.row-title{font-size:17px;color:var(--text-hi);font-weight:600;margin-bottom:6px}
.row-desc{font-size:15px;line-height:1.75;color:var(--text-mid)}
.row-side{font-size:13px;color:var(--text-low);letter-spacing:.04em;text-align:right}

/* ---------- zigzag ---------- */
.zig{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:48px;align-items:center;padding:56px 0;border-bottom:1px solid var(--line)}
.zig:last-child{border-bottom:0}
.zig.is-rev{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}
.zig.is-rev .zig-media{order:-1}
.zig-media{position:relative;aspect-ratio:4/3;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-glass)}
.zig-media img{width:100%;height:100%;object-fit:cover}
.zig-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05),rgba(6,10,18,.45))}
.zig-index{font-size:13px;letter-spacing:.14em;color:var(--accent-400);margin-bottom:12px;font-variant-numeric:tabular-nums}
.zig-title{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:12px}
.zig-desc{font-size:16px;line-height:1.85;color:var(--text-mid);margin-bottom:18px}
.points{border-top:1px solid var(--line)}
.point{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;line-height:1.7}
.point:last-child{border-bottom:0}
.point svg{flex:0 0 auto;margin-top:5px}

/* ---------- 数据带 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass-bg);overflow:hidden;box-shadow:var(--shadow-glass)}
.stat{padding:30px 26px;border-right:1px solid var(--line);position:relative}
.stat:last-child{border-right:0}
.stat-num{font-size:clamp(30px,3.4vw,44px);line-height:1.1;font-weight:700;color:var(--text-hi);font-variant-numeric:tabular-nums}
.stat-num .unit{font-size:15px;font-weight:600;color:var(--accent-400);margin-left:6px}
.stat-label{margin-top:10px;font-size:14px;line-height:1.7;color:var(--text-mid)}
.stat::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:1px;background:linear-gradient(180deg,transparent,rgba(25,227,166,.45),transparent)}
.stat:first-child::before{display:none}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-panel);background:var(--glass-bg);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:border-color .18s ease-out,background-color .18s ease-out
}
.faq-item[open]{border-color:rgba(25,227,166,.3);background:var(--glass-bg-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16.5px;color:var(--text-hi);font-weight:600;min-height:44px
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:30px;height:30px;border-radius:999px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease-out,border-color .2s ease-out}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(25,227,166,.5)}
.faq-a{padding:0 22px 22px;color:var(--text-mid);font-size:15.5px;line-height:1.85;max-width:900px}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 46px;border-radius:var(--r-card);min-height:200px;
  background:linear-gradient(135deg,rgba(25,227,166,.1),rgba(18,199,216,.06) 55%,rgba(255,255,255,.04));
  border:1px solid var(--line);box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08)
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px}
.cta-band p{color:var(--text-mid);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.footer{margin-top:96px;border-top:1px solid var(--line);background:var(--ink-800)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.foot-brand p{margin-top:18px;font-size:14.5px;line-height:1.8;color:var(--text-mid);max-width:360px}
.foot-col h3{font-size:14px;letter-spacing:.04em;color:var(--text-hi);margin-bottom:18px;font-weight:600}
.foot-col ul{display:grid;gap:12px}
.foot-col li a,.foot-col li span{font-size:14.5px;color:var(--text-mid);line-height:1.6}
.foot-col li a:hover{color:var(--brand-400);transform:translateX(2px);display:inline-block}
.foot-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding:20px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .shell{padding:0 32px}
  .dock-links{display:none}
  .dock-toggle{display:inline-flex;margin-left:auto}
  .dock-cta{margin-left:auto}
  .section{padding:72px 0}
  .zig,.zig.is-rev{grid-template-columns:minmax(0,1fr);gap:28px;padding:44px 0}
  .zig.is-rev .zig-media{order:0}
  .row-item{grid-template-columns:52px minmax(0,1fr);gap:16px}
  .row-side{display:none}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{padding:34px 30px}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8}
  .shell{padding:0 20px}
  .dock-wrap{top:14px;padding:0 14px}
  .dock{padding:8px 8px 8px 14px}
  .dock-cta{display:none}
  .hero{padding:118px 0 54px}
  .hero-bg{opacity:.42;background-position:center top}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:14px 20px}
  .section{padding:52px 0}
  .section-head{margin-bottom:30px}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:22px 18px}
  .cta-band{padding:26px 20px;min-height:0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 34px}
  .gapless{grid-template-columns:1fr}
  .faq-item summary{padding:18px;font-size:15.5px}
  .faq-a{padding:0 18px 18px}
}
@media (max-width:519px){
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}
@media (max-width:1023px){
  .glass-card,.faq-item{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 18px 44px -30px rgba(0,0,0,.8)}
}

/* roulang page: article */
:root{
  --ink-900:#060A12; --ink-800:#0B111C; --ink-700:#121A29; --ink-600:#1A2434;
  --line:rgba(255,255,255,.09); --line-strong:rgba(255,255,255,.16);
  --brand-500:#19E3A6; --brand-400:#4DEBC0; --brand-600:#0FB98A; --brand-cyan:#12C7D8;
  --accent-400:#FFB340;
  --text-hi:#E8EEF7; --text-mid:#A6B3C6; --text-low:#6C7A90;
  --glass-bg:rgba(255,255,255,.055); --glass-bg-2:rgba(255,255,255,.085);
  --glass-blur:14px;
  --shadow-glass:0 24px 64px -32px rgba(0,0,0,.85);
  --glow-brand:0 12px 40px -12px rgba(25,227,166,.55);
  --glow-soft:0 0 0 1px rgba(25,227,166,.28);
  --r-card:20px; --r-panel:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-900);color:var(--text-mid);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;-webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:none}
h1,h2,h3,h4{color:var(--text-hi);margin:0}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:99;background:var(--ink-700);color:var(--text-hi);padding:10px 16px;border-radius:0 0 12px 0}
.skip-link:focus{left:0}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-head{margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:650;letter-spacing:-.01em}
.section-head p{margin-top:12px;font-size:15px;line-height:1.7;color:var(--text-mid);max-width:640px}
.hairline{height:1px;background:var(--line);border:0;margin:0}
.txt-balance{text-wrap:balance}
.glass{
  background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
}
/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:80;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;display:flex;align-items:center;gap:16px;width:100%;max-width:1080px;
  padding:10px 12px 10px 18px;border-radius:999px;
  background:rgba(11,17,28,.72);
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);box-shadow:0 18px 48px -28px rgba(0,0,0,.9);
  transition:max-width .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.dock.is-scrolled{max-width:1040px;background:rgba(9,14,24,.92);border-color:var(--line-strong);box-shadow:0 24px 60px -30px rgba(0,0,0,.95)}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(25,227,166,.18),rgba(18,199,216,.1));border:1px solid rgba(25,227,166,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.08}
.logo-text b{font-size:15px;font-weight:700;color:var(--text-hi)}
.logo-text span{font-size:11.5px;color:var(--brand-400);letter-spacing:.04em}
.dock-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;flex:1;justify-content:center}
.dock-links a{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--text-mid);transition:color .18s ease-out,background .18s ease-out}
.dock-links a:hover{color:var(--text-hi);background:rgba(255,255,255,.05)}
.dock-links a.is-active{color:var(--brand-400)}
.dock-links a.is-active::after{content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);width:16px;height:2px;border-radius:2px;background:var(--brand-500);box-shadow:0 0 10px rgba(25,227,166,.8)}
.dock-toggle{display:none;width:44px;height:44px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);align-items:center;justify-content:center;cursor:pointer;transition:background .18s ease-out,border-color .18s ease-out}
.dock-toggle:hover{background:rgba(255,255,255,.09);border-color:var(--line-strong)}
/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-cyan));color:#04140F;box-shadow:var(--glow-brand),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 48px -12px rgba(25,227,166,.6),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 24px -12px rgba(25,227,166,.5)}
.btn-ghost{background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.18);color:var(--brand-400)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(25,227,166,.45);box-shadow:var(--glow-soft)}
.btn-ghost:active{transform:translateY(0)}
/* ---------- chip ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:999px;font-size:13px;line-height:1;letter-spacing:.02em;white-space:nowrap}
.chip-amber{background:rgba(255,179,64,.12);color:var(--accent-400);border:1px solid rgba(255,179,64,.24)}
.chip-brand{background:rgba(25,227,166,.12);color:var(--brand-400);border:1px solid rgba(25,227,166,.24)}
/* ---------- 文章头部 ---------- */
.article-hero{position:relative;padding:152px 0 40px;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.18}
.article-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(72% 120% at 50% 0%,rgba(25,227,166,.13),transparent 68%),linear-gradient(180deg,rgba(6,10,18,.72),var(--ink-900) 94%)}
.article-hero .shell{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:24px}
.breadcrumb a{color:var(--text-low);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--brand-400)}
.breadcrumb .sep{color:rgba(255,255,255,.24)}
.breadcrumb .now{color:var(--text-mid);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{font-size:clamp(34px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-.01em;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:22px;font-size:13px;color:var(--text-low)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24)}
.article-divider{margin-top:28px;height:1px;background:var(--line);border:0}
/* ---------- 正文布局 ---------- */
.article-main{padding:56px 0 0}
.article-layout{display:grid;gap:48px;justify-content:center;grid-template-columns:minmax(0,760px)}
.article-body{font-size:16.5px;line-height:1.9;color:var(--text-mid)}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:650;margin:2.2em 0 .8em;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand-500),var(--brand-cyan))}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:1.6em 0 .6em}
.article-body a{color:var(--brand-400);border-bottom:1px solid rgba(25,227,166,.35);transition:color .18s ease-out,border-color .18s ease-out}
.article-body a:hover{color:var(--brand-500);border-color:var(--brand-500)}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.4em 0}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--brand-500);background:var(--glass-bg);border-radius:0 var(--r-panel) var(--r-panel) 0}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-panel);margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-low);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;font-size:15px}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{color:var(--text-hi);background:rgba(255,255,255,.05);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body code{background:rgba(255,255,255,.07);color:var(--brand-400);padding:2px 6px;border-radius:6px;font-size:.92em}
.article-body pre{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--r-panel);padding:16px 18px;overflow:auto;margin:1.6em 0}
.article-body pre code{background:none;padding:0;color:var(--text-mid)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
/* ---------- 目录 ---------- */
.toc{position:sticky;top:120px;align-self:start;border-left:1px solid var(--line);padding-left:18px}
.toc-title{font-size:13px;letter-spacing:.06em;color:var(--text-low);font-weight:600;margin:0 0 14px}
.toc ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px;max-height:62vh;overflow:auto}
.toc a{display:block;font-size:13.5px;line-height:1.5;color:var(--text-mid);padding-left:10px;border-left:2px solid transparent;transition:color .18s ease-out,border-color .18s ease-out}
.toc a:hover{color:var(--text-hi)}
.toc a.is-current{color:var(--brand-400);border-left-color:var(--brand-500)}
.toc .toc-h3 a{padding-left:22px;font-size:13px}
.toc[hidden]{display:none}
/* ---------- 空态 ---------- */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:14px;min-height:280px;padding:44px 28px;background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-glass)}
.empty-state .empty-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:rgba(25,227,166,.1);border:1px solid rgba(25,227,166,.24)}
.empty-state h2{font-size:20px;font-weight:600}
.empty-state p{font-size:15px;color:var(--text-mid);max-width:420px}
/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.rec-card{display:flex;flex-direction:column;background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(25,227,166,.35);box-shadow:0 30px 70px -34px rgba(0,0,0,.95)}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
.rec-thumb img{width:100%;height:100%;object-fit:cover}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:19px;line-height:1.4;font-weight:600}
.rec-body p{font-size:14.5px;line-height:1.7;color:var(--text-mid)}
.rec-foot{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-low)}
.rec-wide{grid-column:span 2;flex-direction:row;align-items:stretch}
.rec-wide .rec-thumb{width:260px;flex:0 0 260px;aspect-ratio:4/3}
.rec-wide .rec-body{justify-content:center}
/* ---------- 栏目导航 ---------- */
.postnav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.postnav-item{display:flex;flex-direction:column;gap:8px;padding:22px 24px;background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);transition:transform .18s ease-out,border-color .18s ease-out}
.postnav-item:hover{transform:translateY(-2px);border-color:rgba(25,227,166,.35)}
.postnav-item .postnav-label{font-size:13px;color:var(--text-low);letter-spacing:.03em}
.postnav-item strong{font-size:17px;color:var(--text-hi);font-weight:600}
.postnav-item .postnav-desc{font-size:14px;color:var(--text-mid)}
.postnav-back{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin-top:28px;font-size:14.5px}
.postnav-back a{color:var(--brand-400);transition:color .18s ease-out}
.postnav-back a:hover{color:var(--brand-500)}
/* ---------- CTA ---------- */
.cta-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;padding:40px 44px;min-height:200px;border-radius:var(--r-card);background:linear-gradient(120deg,rgba(25,227,166,.1),rgba(18,199,216,.06) 46%,rgba(255,255,255,.04));border:1px solid var(--line);box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08)}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:650;max-width:560px}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.75;color:var(--text-mid);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ---------- 回顶 ---------- */
.to-top{position:fixed;right:24px;bottom:28px;z-index:70;width:44px;height:44px;border-radius:999px;display:grid;place-items:center;background:rgba(11,17,28,.85);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out,border-color .2s ease-out;cursor:pointer}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(25,227,166,.45)}
/* ---------- 页脚 ---------- */
.footer{margin-top:96px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.022),transparent);padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.foot-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;color:var(--text-mid);max-width:330px}
.foot-col h3{font-size:14px;letter-spacing:.04em;font-weight:600;color:var(--text-hi);margin-bottom:16px}
.foot-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px}
.foot-col a,.foot-col span{display:inline-block;font-size:14.5px;color:var(--text-mid);transition:color .18s ease-out,transform .18s ease-out}
.foot-col a:hover{color:var(--brand-500);transform:translateX(2px)}
.foot-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;font-size:13px;color:var(--text-low)}
/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .shell{padding:0 32px}
  .section{padding:72px 0}
  .article-hero{padding-top:130px}
  .article-layout{grid-template-columns:minmax(0,760px)}
  .toc{display:none}
  .rec-wide{grid-column:span 2;flex-direction:column}
  .rec-wide .rec-thumb{width:100%;flex:none;aspect-ratio:16/9}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .dock{gap:10px}
  .dock-links{display:none}
  .dock-cta{display:none}
  .dock-toggle{display:inline-flex}
  .dock.is-open{flex-wrap:wrap;border-radius:24px;padding:12px 14px}
  .dock.is-open .dock-links{display:flex;flex-direction:column;width:100%;align-items:stretch;gap:2px;margin-top:10px;order:3}
  .dock.is-open .dock-links a{height:48px;border-radius:14px;padding:0 14px}
  .dock.is-open .dock-links a.is-active::after{left:14px;transform:none;bottom:12px}
  .dock.is-open .dock-cta{display:inline-flex;width:100%;order:4;margin-top:10px}
  .dock-toggle{order:2}
}
@media (max-width:640px){
  body{font-size:15.5px;line-height:1.8}
  .shell{padding:0 20px}
  .section{padding:52px 0}
  .article-hero{padding:120px 0 28px}
  .article-hero::before{background-position:center top}
  .article-head h1{font-size:clamp(28px,7vw,36px)}
  .breadcrumb .now{max-width:180px}
  .rec-grid,.postnav{grid-template-columns:minmax(0,1fr)}
  .rec-wide{grid-column:span 1}
  .cta-band{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .article-main{padding-top:40px}
  .to-top{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --ink-900:#060A12; --ink-800:#0B111C; --ink-700:#121A29; --ink-600:#1A2434;
    --line:rgba(255,255,255,0.09); --line-strong:rgba(255,255,255,0.16);
    --brand-500:#19E3A6; --brand-400:#4DEBC0; --brand-600:#0FB98A; --brand-cyan:#12C7D8;
    --accent-400:#FFB340;
    --text-hi:#E8EEF7; --text-mid:#A6B3C6; --text-low:#6C7A90;
    --glass-bg:rgba(255,255,255,0.055); --glass-bg-2:rgba(255,255,255,0.085);
    --shadow-glass:0 24px 64px -32px rgba(0,0,0,0.85);
    --glow-brand:0 12px 40px -12px rgba(25,227,166,0.55);
    --glow-soft:0 0 0 1px rgba(25,227,166,0.28);
    --r-card:20px; --r-panel:16px; --r-btn:14px;
    --space-block:96px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0; background:var(--ink-900); color:var(--text-mid);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16.5px; line-height:1.85; -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:""; position:fixed; inset:0; pointer-events:none; z-index:0;
    background-image:linear-gradient(rgba(255,255,255,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.05) 1px,transparent 1px);
    background-size:64px 64px; opacity:.35; mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  }
  img{max-width:100%;display:block;height:auto;}
  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;}
  button,input,textarea{font:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:650;letter-spacing:-0.01em;}
  p{margin:0;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  .shell{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;position:relative;z-index:2;}
  .section{padding:var(--space-block) 0;position:relative;}
  .section-tight{padding:64px 0;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.04em;
    color:var(--brand-400);text-transform:none;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent);}
  .h2{font-size:clamp(26px,3vw,36px);line-height:1.25;font-weight:650;}
  .h3{font-size:20px;line-height:1.4;font-weight:600;}
  .lead{font-size:15px;line-height:1.7;color:var(--text-mid);}
  .muted{color:var(--text-low);}
  .hairline{height:1px;width:100%;background:var(--line);}

  /* ---------- Dock 导航 ---------- */
  .dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 20px;}
  .dock{
    width:100%;max-width:1080px;display:flex;align-items:center;gap:18px;
    padding:10px 12px 10px 18px;border-radius:999px;
    background:rgba(11,17,28,0.72);border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-glass), inset 0 1px 0 rgba(255,255,255,0.08);
    transition:max-width .28s ease-out,background-color .28s ease-out,box-shadow .28s ease-out;
  }
  .dock.is-scrolled{max-width:1040px;background:rgba(11,17,28,0.9);box-shadow:0 28px 70px -34px rgba(0,0,0,0.95), inset 0 1px 0 rgba(255,255,255,0.1);}
  .logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .logo-mark{
    width:34px;height:34px;border-radius:12px;display:grid;place-items:center;
    background:linear-gradient(135deg,rgba(25,227,166,0.22),rgba(18,199,216,0.14));
    border:1px solid rgba(25,227,166,0.32);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.1;}
  .logo-text b{color:var(--text-hi);font-size:15.5px;font-weight:700;letter-spacing:.01em;}
  .logo-text span{color:var(--brand-400);font-size:11.5px;letter-spacing:.14em;}
  .dock-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .dock-links a{
    display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
    font-size:14.5px;color:var(--text-mid);position:relative;white-space:nowrap;
  }
  .dock-links a:hover{color:var(--text-hi);background:rgba(255,255,255,0.05);transform:translateY(-1px);}
  .dock-links a.is-active{color:var(--text-hi);}
  .dock-links a.is-active::after{
    content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
    width:16px;height:2px;border-radius:2px;background:var(--brand-500);
    box-shadow:0 0 10px rgba(25,227,166,0.9);
  }
  .dock-cta{flex-shrink:0;}
  .dock-toggle{
    display:none;width:44px;height:44px;border-radius:999px;background:var(--glass-bg);
    border:1px solid var(--line);align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
  }
  .dock-toggle:hover{border-color:rgba(25,227,166,0.45);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:52px;padding:0 28px;border-radius:999px;font-size:15.5px;font-weight:600;
    cursor:pointer;border:1px solid transparent;transition:all .18s ease-out;white-space:nowrap;
  }
  .btn-sm{height:42px;padding:0 20px;font-size:14.5px;}
  .btn-primary{
    background:linear-gradient(135deg,#19E3A6,#12C7D8);color:#04140F;
    box-shadow:var(--glow-brand), inset 0 1px 0 rgba(255,255,255,0.35);
  }
  .btn-primary:hover{box-shadow:0 18px 52px -12px rgba(25,227,166,0.75), inset 0 1px 0 rgba(255,255,255,0.4);transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 8px 26px -14px rgba(25,227,166,0.6);}
  .btn-ghost{
    background:transparent;color:var(--brand-400);border:1px solid rgba(255,255,255,0.18);
  }
  .btn-ghost:hover{border-color:rgba(25,227,166,0.45);box-shadow:var(--glow-soft);color:var(--brand-500);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}

  /* ---------- 玻璃与卡片 ---------- */
  .glass{
    background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-glass), inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .glass-panel{
    background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-panel);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .card-hover{transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;}
  .card-hover:hover{transform:translateY(-2px);border-color:rgba(25,227,166,0.35);box-shadow:0 30px 74px -30px rgba(0,0,0,0.95), inset 0 1px 0 rgba(255,255,255,0.1);}
  .chip{
    display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
    font-size:13px;line-height:1;letter-spacing:.02em;
  }
  .chip-amber{background:rgba(255,179,64,0.12);color:var(--accent-400);}
  .chip-brand{background:rgba(25,227,166,0.12);color:var(--brand-400);}
  .chip-plain{background:rgba(255,255,255,0.06);color:var(--text-low);}

  /* ---------- 面包屑 ---------- */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);letter-spacing:.02em;}
  .crumb a:hover{color:var(--brand-400);}
  .crumb .sep{color:rgba(255,255,255,0.22);}
  .crumb .cur{color:var(--text-mid);}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;padding:150px 0 72px;overflow:hidden;
    background-image:linear-gradient(rgba(6,10,18,0.88),rgba(6,10,18,0.96)),url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
  }
  .hero::after{
    content:"";position:absolute;top:-160px;left:12%;width:620px;height:620px;border-radius:50%;
    background:radial-gradient(circle,rgba(25,227,166,0.12),transparent 68%);pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;max-width:860px;}
  .hero h1{
    font-size:clamp(34px,4.6vw,56px);line-height:1.15;font-weight:700;letter-spacing:-0.01em;
    margin:22px 0 18px;
  }
  .hero h1 em{font-style:normal;color:var(--brand-400);}
  .hero-sub{font-size:17px;line-height:1.75;color:var(--text-mid);max-width:660px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

  /* ---------- 时间轴 ---------- */
  .tl{position:relative;margin-top:48px;padding-left:76px;}
  .tl::before{
    content:"";position:absolute;left:23px;top:8px;bottom:8px;width:1px;
    background:linear-gradient(180deg,rgba(25,227,166,0.75),rgba(25,227,166,0.12) 78%,transparent);
  }
  .tl-item{position:relative;padding:0 0 34px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-node{
    position:absolute;left:-76px;top:2px;width:48px;height:48px;border-radius:999px;
    display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--brand-400);
    background:rgba(11,17,28,0.94);border:1px solid rgba(25,227,166,0.35);
    box-shadow:0 0 0 6px rgba(6,10,18,0.9), 0 0 26px -8px rgba(25,227,166,0.6);
    font-variant-numeric:tabular-nums;
  }
  .tl-body{
    background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 28px;backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-glass), inset 0 1px 0 rgba(255,255,255,0.08);
    transition:transform .18s ease-out,border-color .18s ease-out;
  }
  .tl-item:hover .tl-body{transform:translateY(-2px);border-color:rgba(25,227,166,0.32);}
  .tl-body h3{margin-bottom:10px;}
  .tl-body p{font-size:15.5px;line-height:1.8;color:var(--text-mid);}
  .tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

  /* ---------- 数据带 ---------- */
  .stats{
    display:grid;grid-template-columns:repeat(4,1fr);
    background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-glass), inset 0 1px 0 rgba(255,255,255,0.08);
    overflow:hidden;
  }
  .stat{padding:32px 26px;position:relative;}
  .stat + .stat::before{
    content:"";position:absolute;left:0;top:24px;bottom:24px;width:1px;
    background:linear-gradient(180deg,transparent,rgba(25,227,166,0.5),transparent);
  }
  .stat-num{
    font-size:clamp(30px,3.4vw,44px);line-height:1.1;font-weight:700;color:var(--accent-400);
    font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:4px;
  }
  .stat-num small{font-size:14px;font-weight:600;color:var(--text-mid);}
  .stat-label{margin-top:10px;font-size:14px;line-height:1.6;color:var(--text-low);}

  /* ---------- 横条列表卡 ---------- */
  .row-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;}
  .row-card{
    display:flex;gap:20px;padding:20px;border-radius:var(--r-card);
    background:var(--glass-bg);border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-glass), inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .row-thumb{
    width:168px;flex-shrink:0;border-radius:var(--r-panel);overflow:hidden;
    aspect-ratio:4/3;background:var(--ink-700);
  }
  .row-thumb img{width:100%;height:100%;object-fit:cover;}
  .row-body{display:flex;flex-direction:column;min-width:0;flex:1;}
  .row-body h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
  .row-body p{font-size:14.5px;line-height:1.7;color:var(--text-mid);}
  .row-foot{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low);
  }

  /* ---------- FAQ ---------- */
  .faq-list{margin-top:36px;display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    border-radius:var(--r-card);background:var(--glass-bg);border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(120%);
    box-shadow:inset 0 1px 0 rgba(255,255,255,0.08);transition:border-color .18s ease-out;
  }
  .faq-item[open]{border-color:rgba(25,227,166,0.3);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
    padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text-hi);min-height:64px;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-plus{
    margin-left:auto;flex-shrink:0;width:30px;height:30px;border-radius:999px;
    display:grid;place-items:center;border:1px solid var(--line);transition:transform .2s ease-out,border-color .2s ease-out;
  }
  .faq-item[open] .faq-plus{transform:rotate(45deg);border-color:rgba(25,227,166,0.5);}
  .faq-answer{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--text-mid);}

  /* ---------- CTA 带 ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;
    border:1px solid var(--line);
    background-image:linear-gradient(rgba(6,10,18,0.86),rgba(6,10,18,0.94)),url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center;
    box-shadow:var(--shadow-glass);
    padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:36px;
    min-height:200px;
  }
  .cta-band::after{
    content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;
    background:radial-gradient(circle,rgba(25,227,166,0.16),transparent 70%);
  }
  .cta-band > *{position:relative;z-index:2;}
  .cta-band h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

  /* ---------- 页脚 ---------- */
  .footer{
    margin-top:24px;border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(18,26,41,0.55),rgba(6,10,18,0.9));
    padding:64px 0 34px;position:relative;z-index:2;
  }
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
  .foot-brand p{font-size:14.5px;line-height:1.8;color:var(--text-mid);margin-top:18px;max-width:360px;}
  .foot-col h3{font-size:14px;letter-spacing:.04em;color:var(--text-hi);margin-bottom:16px;font-weight:600;}
  .foot-col ul{display:flex;flex-direction:column;gap:12px;}
  .foot-col a,.foot-col span{font-size:14.5px;color:var(--text-mid);}
  .foot-col a{display:inline-block;}
  .foot-col a:hover{color:var(--brand-400);transform:translateX(2px);}
  .foot-bottom{
    margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:12px 28px;font-size:13px;color:var(--text-low);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    :root{--space-block:72px;}
    .dock{max-width:100%;background:rgba(11,17,28,0.88);}
    .dock-links{
      position:fixed;top:84px;left:20px;right:20px;display:none;flex-direction:column;
      align-items:stretch;gap:6px;margin-left:0;padding:16px;border-radius:20px;
      background:rgba(11,17,28,0.96);border:1px solid var(--line-strong);
      backdrop-filter:blur(18px);box-shadow:var(--shadow-glass);
    }
    .dock-links.is-open{display:flex;animation:dockIn .2s ease-out;}
    .dock-links a{height:48px;justify-content:flex-start;font-size:15.5px;}
    .dock-links a.is-active::after{left:20px;transform:none;}
    .dock-toggle{display:inline-flex;margin-left:auto;}
    .dock-cta{display:none;}
    .hero{padding:132px 0 60px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  }
  @keyframes dockIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:translateY(0);}}

  @media (max-width:768px){
    :root{--space-block:52px;}
    body{font-size:15.5px;line-height:1.8;}
    .shell{padding:0 20px;}
    .glass,.glass-panel,.tl-body,.row-card,.dock-links{backdrop-filter:blur(8px) saturate(115%);}
    .stats{grid-template-columns:repeat(2,1fr);}
    .stat{padding:26px 20px;}
    .stat:nth-child(odd) + .stat::before{display:block;}
    .stat:nth-child(3)::before,.stat:nth-child(1)::before{display:none;}
    .stat:nth-child(n+3){border-top:1px solid var(--line);}
    .row-cards{grid-template-columns:1fr;}
    .row-card{flex-direction:column;}
    .row-thumb{width:100%;}
    .tl{padding-left:0;margin-top:34px;}
    .tl::before{display:none;}
    .tl-node{position:static;margin-bottom:14px;box-shadow:0 0 24px -10px rgba(25,227,166,0.6);}
    .tl-item{padding-bottom:24px;display:flex;flex-direction:column;}
    .tl-body{padding:22px 20px;}
    .hero-actions .btn{width:100%;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .foot-grid{grid-template-columns:1fr;}
    .foot-bottom{flex-direction:column;}
  }
  @media (max-width:520px){
    .hero{padding:120px 0 48px;}
    .hero h1{font-size:32px;}
    .cta-band{padding:32px 22px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
    .card-hover:hover,.tl-item:hover .tl-body,.btn-primary:hover,.btn-ghost:hover{transform:none;}
  }

/* roulang page: category3 */
:root{
  --ink-900:#060A12;--ink-800:#0B111C;--ink-700:#121A29;--ink-600:#1A2434;
  --line:rgba(255,255,255,.09);--line-strong:rgba(255,255,255,.16);
  --brand-500:#19E3A6;--brand-400:#4DEBC0;--brand-600:#0FB98A;--brand-cyan:#12C7D8;
  --accent-400:#FFB340;
  --text-hi:#E8EEF7;--text-mid:#A6B3C6;--text-low:#6C7A90;
  --glass-bg:rgba(255,255,255,.055);--glass-bg-2:rgba(255,255,255,.085);
  --glass-blur:14px;
  --shadow-glass:0 24px 64px -32px rgba(0,0,0,.85);
  --glow-brand:0 12px 40px -12px rgba(25,227,166,.55);
  --glow-soft:0 0 0 1px rgba(25,227,166,.28);
  --r-card:20px;--r-panel:16px;--r-btn:999px;
  --shell:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--ink-900);color:var(--text-mid);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:650;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(25,227,166,.3);color:#fff;}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 40px;}
.section{padding:96px 0;position:relative;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{font-size:clamp(26px,3vw,36px);letter-spacing:-.01em;}
.sec-head p{margin-top:10px;font-size:16px;color:var(--text-mid);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--brand-400);text-transform:none;}
.eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,transparent,var(--brand-500));}

/* ---------- Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:80;padding:0 20px;pointer-events:none;}
.dock{
  pointer-events:auto;max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:16px;
  padding:9px 12px 9px 16px;border-radius:var(--r-btn);
  background:rgba(11,17,28,.72);backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  border:1px solid var(--line);box-shadow:var(--shadow-glass);
  transition:max-width .22s ease-out,background-color .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.dock.is-scrolled{max-width:1040px;background:rgba(11,17,28,.9);border-color:var(--line-strong);box-shadow:0 26px 70px -30px rgba(0,0,0,.95);}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:4px;border-radius:14px;}
.logo-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:12px;background:rgba(25,227,166,.1);border:1px solid rgba(25,227,166,.22);}
.logo-text{display:flex;flex-direction:column;line-height:1.12;}
.logo-text b{font-size:15px;font-weight:700;color:var(--text-hi);letter-spacing:.01em;}
.logo-text span{font-size:11.5px;color:var(--text-low);letter-spacing:.16em;}
.dock-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.dock-links a{
  position:relative;display:inline-flex;align-items:center;min-height:40px;padding:0 12px;border-radius:12px;
  font-size:14.5px;color:var(--text-mid);white-space:nowrap;
}
.dock-links a:hover{color:var(--text-hi);background:rgba(255,255,255,.05);}
.dock-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--brand-500);transform:translateX(-50%);transition:width .18s ease-out;box-shadow:0 0 12px rgba(25,227,166,.85);
}
.dock-links a:hover::after,.dock-links a.is-active::after{width:16px;}
.dock-links a.is-active{color:var(--text-hi);}
.dock-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.05);align-items:center;justify-content:center;cursor:pointer;}
.dock-drawer{
  position:fixed;inset:0;z-index:90;display:none;padding:88px 20px 32px;
  background:rgba(6,10,18,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.dock-drawer.is-open{display:block;animation:fadeIn .2s ease-out;}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.dock-drawer ul{display:grid;gap:8px;max-width:520px;margin:0 auto;}
.dock-drawer a{display:flex;align-items:center;justify-content:space-between;min-height:56px;padding:0 20px;border-radius:var(--r-panel);border:1px solid var(--line);background:var(--glass-bg);font-size:16px;color:var(--text-hi);}
.dock-drawer a.is-active{border-color:rgba(25,227,166,.4);background:rgba(25,227,166,.08);}
.dock-drawer .drawer-close{position:absolute;top:24px;right:24px;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.05);display:grid;place-items:center;cursor:pointer;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:linear-gradient(135deg,#19E3A6,#12C7D8);color:#04140F;box-shadow:var(--glow-brand),inset 0 1px 0 rgba(255,255,255,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 52px -12px rgba(25,227,166,.7),inset 0 1px 0 rgba(255,255,255,.4);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 26px -14px rgba(25,227,166,.6);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--brand-400);}
.btn-ghost:hover{border-color:rgba(25,227,166,.45);box-shadow:var(--glow-soft);color:var(--brand-400);}
.btn-block{width:100%;}

/* ---------- 玻璃通用 ---------- */
.glass{
  background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(120%);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
}
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:999px;font-size:13px;line-height:1;letter-spacing:.02em;}
.chip-brand{background:rgba(25,227,166,.12);color:var(--brand-400);}
.chip-accent{background:rgba(255,179,64,.12);color:var(--accent-400);}
.chip-muted{background:rgba(255,255,255,.06);color:var(--text-mid);}
.hairline{height:1px;background:var(--line);border:0;}

/* ---------- Hero ---------- */
.hero-cat{position:relative;padding:150px 0 78px;overflow:hidden;border-bottom:1px solid var(--line);}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.5;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 420px at 12% 8%,rgba(25,227,166,.12),transparent 62%),
    radial-gradient(560px 380px at 88% 92%,rgba(18,199,216,.09),transparent 60%),
    linear-gradient(180deg,rgba(6,10,18,.82) 0%,rgba(6,10,18,.94) 62%,var(--ink-900) 100%);
}
.hero-cat .shell{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:24px;}
.crumbs a:hover{color:var(--brand-400);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.hero-cat h1{font-size:clamp(34px,4.6vw,56px);font-weight:700;line-height:1.15;letter-spacing:-.01em;max-width:900px;}
.hero-cat .lead{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-mid);max-width:720px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;}
.filter-chip{display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;font-size:14px;color:var(--text-mid);border:1px solid var(--line);background:rgba(255,255,255,.04);cursor:pointer;transition:all .18s ease-out;}
.filter-chip:hover{border-color:rgba(25,227,166,.35);color:var(--text-hi);transform:translateY(-1px);}
.filter-chip.is-on{background:rgba(25,227,166,.12);border-color:rgba(25,227,166,.4);color:var(--brand-400);}

/* ---------- 场景网格 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(25,227,166,.35);box-shadow:0 32px 74px -34px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.1);}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.scene-card:hover .scene-media img{transform:scale(1.03);}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.05) 0%,rgba(6,10,18,.68) 100%);}
.scene-media .chip{position:absolute;top:16px;left:16px;z-index:2;}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.scene-body h3{font-size:20px;}
.scene-body p{font-size:15px;line-height:1.75;color:var(--text-mid);}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.scene-foot{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);margin-top:8px;font-size:13px;color:var(--text-low);}
.scene-foot .link{color:var(--brand-400);font-weight:600;}
.scene-foot .link:hover{color:var(--brand-500);}

/* ---------- 横向小卡条 ---------- */
.rail{display:flex;gap:16px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:999px;}
.rail::-webkit-scrollbar-thumb{background:rgba(25,227,166,.4);border-radius:999px;}
.rail-item{flex:0 0 264px;scroll-snap-align:start;padding:20px;border-radius:var(--r-panel);display:flex;flex-direction:column;gap:10px;transition:transform .18s ease-out,border-color .18s ease-out;}
.rail-item:hover{transform:translateY(-2px);border-color:rgba(25,227,166,.32);}
.rail-ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:rgba(255,179,64,.12);border:1px solid rgba(255,179,64,.22);}
.rail-item h3{font-size:16.5px;}
.rail-item p{font-size:14px;line-height:1.7;color:var(--text-mid);}

/* ---------- 数据带 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.035);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));}
.metric{padding:30px 26px;position:relative;}
.metric + .metric::before{content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:linear-gradient(180deg,transparent,rgba(25,227,166,.55),transparent);}
.metric .num{font-size:clamp(30px,3.4vw,44px);font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;line-height:1.05;letter-spacing:-.01em;}
.metric .num small{font-size:14px;color:var(--text-mid);font-weight:500;margin-left:4px;}
.metric .label{margin-top:10px;font-size:14px;color:var(--text-mid);line-height:1.6;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{border-radius:var(--r-panel);overflow:hidden;transition:border-color .18s ease-out;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:17px;font-weight:600;color:var(--text-hi);min-height:64px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item .plus{flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;border:1px solid var(--line);transition:transform .18s ease-out,border-color .18s ease-out;}
.faq-item[open]{border-color:rgba(25,227,166,.32);}
.faq-item[open] .plus{transform:rotate(45deg);border-color:rgba(25,227,166,.5);}
.faq-item .ans{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-mid);}

/* ---------- 表单 ---------- */
.form-panel{padding:32px;display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:start;}
.form-intro h2{font-size:clamp(24px,2.6vw,32px);}
.form-intro p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-mid);}
.form-intro ul{margin-top:22px;display:grid;gap:12px;}
.form-intro li{display:flex;gap:10px;font-size:14.5px;color:var(--text-mid);line-height:1.7;}
.form-intro li svg{flex:0 0 auto;margin-top:5px;}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--text-mid);letter-spacing:.02em;}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text-hi);font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(25,227,166,.15);background:rgba(255,255,255,.075);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6C7A90 50%),linear-gradient(135deg,#6C7A90 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.form-note{font-size:13px;color:var(--text-low);line-height:1.7;}
.form-feedback{display:none;margin-top:6px;font-size:14px;color:var(--brand-400);}
.form-feedback.is-show{display:block;}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;border-radius:var(--r-card);}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 300px at 88% 20%,rgba(25,227,166,.18),transparent 62%);}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);}
.cta-band p{margin-top:12px;font-size:15.5px;color:var(--text-mid);max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,17,28,.6),var(--ink-900));padding:64px 0 28px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .logo{margin-bottom:18px;}
.foot-brand p{font-size:14.5px;line-height:1.85;color:var(--text-mid);max-width:340px;}
.foot-col h3{font-size:14px;letter-spacing:.04em;color:var(--text-hi);margin-bottom:18px;font-weight:600;}
.foot-col ul{display:grid;gap:12px;}
.foot-col a,.foot-col span{font-size:14.5px;color:var(--text-mid);display:inline-block;transition:color .18s ease-out,transform .18s ease-out;}
.foot-col a:hover{color:var(--brand-400);transform:translateX(2px);}
.foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;font-size:13px;color:var(--text-low);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .shell{padding:0 32px;}
  .section{padding:72px 0;}
  .dock-links{display:none;}
  .dock-toggle{display:flex;}
  .dock-cta{display:none;}
  .scene-grid{grid-template-columns:1fr;}
  .form-panel{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(3)::before{display:none;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8;}
  .shell{padding:0 20px;}
  .section{padding:52px 0;}
  .hero-cat{padding:126px 0 56px;}
  .dock{max-width:100%;}
  .hero-actions .btn{width:100%;}
  .form-grid{grid-template-columns:1fr;}
  .form-panel{padding:24px;}
  .cta-band{padding:28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .rail-item{flex:0 0 232px;}
  .faq-item summary{padding:18px;}
  .faq-item .ans{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .scene-card:hover,.rail-item:hover,.btn-primary:hover{transform:none;}
}