/* roulang page: index */
:root{
  --bg:#0B0F1E;
  --bg-soft:#111831;
  --card:#151D38;
  --card-hover:#1A2445;
  --primary:#2ED3B7;
  --primary-deep:#17A88F;
  --primary-mist:rgba(46,211,183,.12);
  --secondary:#7C6BFF;
  --secondary-mist:rgba(124,107,255,.14);
  --amber:#FFB020;
  --amber-mist:rgba(255,176,32,.12);
  --ok:#33C48D;
  --text:#E8ECF6;
  --text-2:#A9B4CC;
  --text-3:#6B7794;
  --line:#223055;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 8px 24px rgba(3,6,18,.45);
  --shadow-hover:0 14px 34px rgba(3,6,18,.55);
  --ease:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(232,236,246,.07) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.55;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;border-radius:var(--r-img)}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:#5EE6CE}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(46,211,183,.28);color:#fff}
[id]{scroll-margin-top:88px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.site-main{position:relative;z-index:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--primary);color:#07110F}
.btn-primary:hover{background:var(--primary-deep);color:#07110F}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{background:rgba(46,211,183,.10);border-color:var(--primary);color:var(--primary)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  background:none;border:0;padding:0;
}
.link-arrow span{transition:transform var(--ease)}
.link-arrow:hover{color:var(--primary);text-decoration:underline}
.link-arrow:hover span{transform:translateX(3px)}
.link-arrow:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;
  background:var(--primary-mist);color:var(--primary);white-space:nowrap;
}
.badge-purple{background:var(--secondary-mist);color:#A79BFF}
.badge-amber{background:var(--amber-mist);color:var(--amber)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,15,30,.92);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(3,6,18,.62);background:rgba(11,15,30,.97)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:17px;font-weight:700;letter-spacing:.01em}
.brand:hover{color:var(--text)}
.brand-mark{
  width:32px;height:32px;flex:none;border-radius:9px;display:grid;place-items:center;
  background:var(--primary-mist);border:1px solid rgba(46,211,183,.35);color:var(--primary);
}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:6px}
.nav-link{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--primary);transition:width var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--text)}
.nav-link.active::after{width:100%}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.command-search{
  position:relative;display:flex;align-items:center;
  width:262px;height:40px;padding:0 10px 0 34px;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.command-search svg{position:absolute;left:11px;width:16px;height:16px;color:var(--text-3)}
.command-search input{
  width:100%;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,211,183,.22)}
.kbd{
  flex:none;margin-left:8px;padding:1px 6px;border:1px solid var(--line);border-radius:6px;
  font-size:11px;line-height:1.6;color:var(--text-3);
}
.nav-cta-text{font-size:14px;font-weight:500;color:var(--text-2)}
.nav-cta-text:hover{color:var(--primary)}
.nav-toggle{
  display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--bg-soft);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle i{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-active i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-active i:nth-child(2){opacity:0}
.nav-toggle.is-active i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{display:none;position:fixed;inset:68px 0 0 0;z-index:55;background:rgba(8,11,22,.96)}
.mobile-drawer.is-open{display:block}
.drawer-panel{
  max-width:520px;margin:0 auto;padding:20px 18px 32px;
  display:grid;gap:18px;overflow-y:auto;max-height:100%;
}
.drawer-panel .command-search{width:100%}
.drawer-nav{display:grid;border-top:1px solid var(--line)}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.drawer-nav a.active{color:var(--primary)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 84px;min-height:620px;display:flex;align-items:center;overflow:hidden}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,183,.55),transparent);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;width:100%}
.hero-copy h1{font-size:40px;margin-top:18px}
.hero-sub{margin-top:16px;max-width:520px;font-size:18px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:32px;font-size:14px;color:var(--text-2)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);flex:none}
.hero-media{position:relative}
.hero-media>img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:18px;border:1px solid var(--line);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:18px;
  background:rgba(11,15,30,.35);pointer-events:none;
}
.hero-stat{
  position:absolute;right:18px;bottom:18px;z-index:3;
  width:180px;height:96px;padding:0 18px;
  display:flex;flex-direction:column;justify-content:center;
  background:rgba(17,24,49,.95);border:1px solid var(--line);border-radius:14px;
}
.hero-stat strong{
  font-size:30px;line-height:1.15;color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.hero-stat span{margin-top:4px;font-size:13px;line-height:1.6;color:var(--text-3)}

/* ---------- 板块通用 ---------- */
.section{padding:84px 0;position:relative;z-index:1}
.section + .section{border-top:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;margin-top:14px;max-width:620px}
.eyebrow{
  display:inline-block;padding:3px 0 3px 14px;position:relative;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--primary);
}
.eyebrow::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:22px;border-radius:2px;background:var(--primary);
}
.section-note{max-width:400px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- 服务 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease);
}
.service-card:hover{
  transform:translateY(-3px);background:var(--card-hover);
  box-shadow:var(--shadow-hover);border-color:rgba(46,211,183,.3);
}
.service-card h3{font-size:18px;margin-top:18px}
.service-card p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.service-card .link-arrow{margin-top:18px}
.service-card-wide{grid-column:1/-1}
.service-card-wide .wide-inner{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.service-card-wide h3{font-size:22px}
.service-card-wide p{-webkit-line-clamp:3;font-size:15px}
.wide-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img)}
.icon-box{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary-mist);color:var(--primary);flex:none;
}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0;position:relative;z-index:1}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat strong{
  display:block;font-size:40px;line-height:1.1;color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--text-2)}
.stats-foot{margin-top:36px;font-size:15px;color:var(--text-2);max-width:720px}

/* ---------- 案例 ---------- */
.case-feature{
  display:grid;grid-template-columns:7fr 5fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:24px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.case-feature:hover{border-color:rgba(46,211,183,.3);box-shadow:var(--shadow-hover)}
.case-feature .case-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:16/9}
.case-body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center}
.case-body h3{font-size:22px}
.case-body .case-result{font-size:15px;color:var(--text-2)}
.case-tags{display:flex;flex-wrap:wrap;gap:8px}
.case-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(46,211,183,.3)}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.case-card .case-body{padding:24px;gap:10px}
.case-card h3{font-size:18px}

/* ---------- 方案 Tab ---------- */
.plan-wrap{display:grid;grid-template-columns:300px 1fr;gap:32px;align-items:start}
.plan-tabs{display:flex;flex-direction:column;gap:8px}
.plan-tab{
  text-align:left;width:100%;padding:16px 18px;
  background:transparent;border:1px solid transparent;border-left:3px solid transparent;
  border-radius:10px;font-size:15px;font-weight:600;color:var(--text-2);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.plan-tab:hover{background:rgba(21,29,56,.7);color:var(--text)}
.plan-tab.is-active{background:var(--card);border-color:var(--line);border-left-color:var(--primary);color:var(--text)}
.plan-tab:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.plan-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;
}
.plan-panel[hidden]{display:none}
.plan-panel h3{font-size:22px}
.plan-panel>p{margin-top:14px;font-size:15px;color:var(--text-2)}
.plan-list{margin-top:20px;display:grid;gap:12px}
.plan-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2)}
.plan-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.plan-panel .btn{margin-top:24px}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(46,211,183,.3)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:17px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--primary)}
.news-excerpt{font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:rgba(21,29,56,.5);
}
.empty-state .empty-icon{
  display:grid;place-items:center;width:48px;height:48px;margin:0 auto 16px;
  border-radius:14px;background:var(--primary-mist);color:var(--primary);font-size:20px;
}
.empty-state p{font-size:15px;color:var(--text-2)}
.empty-state .link-arrow{margin-top:14px}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 4px 16px 16px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:transparent;transition:background var(--ease);
}
.faq-item[open] summary::before{background:var(--primary)}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.faq-icon{flex:none;width:18px;height:18px;position:relative;transition:transform var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-answer{padding:0 4px 20px 16px;max-width:760px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.info-list{display:grid;gap:20px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-item strong{display:block;font-size:13px;font-weight:500;color:var(--text-3)}
.info-item span{display:block;margin-top:2px;font-size:15px;color:var(--text);font-variant-numeric:tabular-nums}
.contact-img{margin-top:28px;width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);border-radius:14px}
.contact-form{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;display:grid;gap:18px;
}
.field label{display:block;margin-bottom:8px;font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;
  font-size:15px;color:var(--text);outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,211,183,.24);
}
.form-note{font-size:12px;line-height:1.7;color:var(--text-3)}
.form-success{
  background:rgba(51,196,141,.12);border:1px solid rgba(51,196,141,.4);
  color:#7EE0B6;border-radius:10px;padding:12px 16px;font-size:14px;
}
.form-success[hidden]{display:none}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);position:relative;z-index:1}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-top:64px;padding-bottom:48px;
}
.footer-brand p{margin-top:16px;max-width:320px;font-size:14px;line-height:1.85;color:var(--text-2)}
.footer-social{display:flex;gap:12px;margin-top:22px}
.social{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--card);color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.social:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-mist)}
.footer-col h4{font-size:14px;color:var(--primary);font-weight:600}
.footer-col ul{margin-top:16px;display:grid;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(2px);display:inline-block}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);font-variant-numeric:tabular-nums}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;padding-bottom:26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动吸底条 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:58;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
  background:rgba(11,15,30,.97);border-top:1px solid var(--line);
}
.mobile-bar .bar-link{font-size:14px;font-weight:500;color:var(--text-2)}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav,.command-search,.nav-cta-text{display:none}
  .nav-toggle{display:flex}
  .hero{min-height:auto;padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy h1{font-size:34px}
  .hero-sub{font-size:17px}
  .section{padding:64px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .service-card-wide .wide-inner{grid-template-columns:1fr;gap:24px}
  .stats-band{padding:44px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat{padding:0 24px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .case-feature{grid-template-columns:1fr}
  .plan-wrap{grid-template-columns:1fr}
  .plan-tabs{flex-direction:row;overflow-x:auto;padding-bottom:4px}
  .plan-tab{width:auto;flex:none;border-left:1px solid transparent;border-bottom:3px solid transparent}
  .plan-tab.is-active{border-left-color:var(--line);border-bottom-color:var(--primary)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero-copy h1{font-size:30px}
  .hero-points{gap:14px}
  .service-grid{grid-template-columns:1fr}
  .case-cards{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-bar{display:flex}
  body{padding-bottom:56px}
  .section{padding:52px 0}
  .hero-stat{width:158px;height:88px;right:12px;bottom:12px}
  .hero-stat strong{font-size:26px}
  .plan-panel{padding:24px}
  .contact-form{padding:22px}
}
@media (max-width:480px){
  .hero-copy h1{font-size:27px}
  .hero-sub{font-size:16px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .btn-sm{width:auto}
  .stat strong{font-size:32px}
  .section-head h2{font-size:22px}
  .hero-media>img{aspect-ratio:4/3}
}

/* roulang page: article */
:root{
  --bg:#0B0F1E;
  --bg-2:#111831;
  --card:#151D38;
  --card-hover:#1A2445;
  --primary:#2ED3B7;
  --primary-deep:#17A88F;
  --primary-soft:rgba(46,211,183,.12);
  --violet:#7C6BFF;
  --violet-soft:rgba(124,107,255,.14);
  --amber:#FFB020;
  --amber-soft:rgba(255,176,32,.12);
  --success:#33C48D;
  --danger:#F2555A;
  --text:#E8ECF6;
  --text-2:#A9B4CC;
  --text-3:#6B7794;
  --border:#223055;
  --border-soft:rgba(34,48,85,.6);
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-hero:18px;
  --shadow:0 8px 24px rgba(3,6,18,.45);
  --shadow-hover:0 14px 34px rgba(3,6,18,.55);
  --container:1200px;
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:radial-gradient(rgba(232,236,246,.055) 1px,transparent 1px);
  background-size:26px 26px;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
::selection{background:rgba(46,211,183,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,15,30,.92);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 12px 32px rgba(3,6,18,.55)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap;color:var(--text);transition:color var(--t)}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:32px;height:32px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--primary-soft);
  border:1px solid rgba(46,211,183,.28);
  color:var(--primary);
}
.main-nav{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;
  transition:width var(--t);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--text)}
.nav-link.active::after{width:100%}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:270px;height:40px;padding:0 12px;
  background:var(--bg-2);
  border:1px solid var(--border);
  border-radius:var(--r-input);
  transition:border-color var(--t),box-shadow var(--t);
}
.command-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,211,183,.18)}
.command-search svg{color:var(--text-3);flex:none}
.command-search input{
  flex:1;min-width:0;
  background:transparent;border:0;outline:none;
  font-size:14px;line-height:1.4;color:var(--text);
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  flex:none;font-size:12px;line-height:1;
  padding:5px 6px;border-radius:6px;
  border:1px solid var(--border);
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.link-quiet{font-size:15px;color:var(--text-2);transition:color var(--t)}
.link-quiet:hover{color:var(--primary)}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  color:var(--text);
  cursor:pointer;
  transition:border-color var(--t),color var(--t);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* 移动端抽屉 */
.nav-drawer{
  display:none;
  position:fixed;top:68px;left:0;right:0;bottom:0;
  z-index:75;
  background:var(--bg);
  border-top:1px solid var(--border);
  padding:22px 18px 36px;
  overflow-y:auto;
}
.nav-drawer.is-open{display:block}
.drawer-search{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;margin-bottom:20px;
  background:var(--bg-2);
  border:1px solid var(--border);
  border-radius:var(--r-input);
}
.drawer-search svg{color:var(--text-3);flex:none}
.drawer-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:15px;color:var(--text)}
.drawer-search input::placeholder{color:var(--text-3)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;
  height:48px;padding:0 4px;
  font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--border-soft);
  transition:color var(--t),padding-left var(--t);
}
.drawer-link:hover,.drawer-link.active{color:var(--primary);padding-left:10px}
.drawer-cta{margin-top:24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background var(--t),border-color var(--t),color var(--t),box-shadow var(--t),transform var(--t);
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#07110F}
.btn-primary:hover{background:var(--primary-deep)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--primary)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  transition:gap var(--t);
}
.btn-text svg{transition:transform var(--t)}
.btn-text:hover svg{transform:translateX(3px)}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 徽章 / 面包屑 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge-primary{background:var(--primary-soft);color:var(--primary)}
.badge-violet{background:var(--violet-soft);color:#A79BFF}
.badge-amber{background:var(--amber-soft);color:var(--amber)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--text-3);transition:color var(--t)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#31406B}
.breadcrumb .current{color:#A79BFF;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-head{
  position:relative;
  padding:38px 0 44px;
  background-image:linear-gradient(180deg,rgba(11,15,30,.86),rgba(11,15,30,.95)),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.article-title{
  font-size:32px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:.01em;
  max-width:860px;
  margin-bottom:18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-2)}
.meta-row .dot{color:#31406B}
.meta-row time{font-variant-numeric:tabular-nums}
.meta-row .author{color:var(--text-3)}

/* ============ 正文布局 ============ */
.article-wrap{padding:52px 0 84px}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,760px) 300px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:36px;
  min-width:0;
}

/* 正文排版 */
.article-body{font-size:16px;line-height:1.92;color:#DDE4F2;letter-spacing:.01em;word-break:break-word}
.article-body > * + *{margin-top:16px}
.article-body h2{
  position:relative;
  font-size:24px;line-height:1.35;font-weight:700;color:var(--text);
  margin-top:40px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;
  border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--text);margin-top:32px}
.article-body h4{font-size:18px;font-weight:600;color:var(--text);margin-top:26px}
.article-body p{margin-top:16px;color:#DDE4F2}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;transition:font-weight var(--t)}
.article-body a:hover{font-weight:600}
.article-body strong{color:var(--text);font-weight:600}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:24px 0;
  padding:20px 22px;
  background:var(--bg-2);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--text-2);
}
.article-body blockquote p{margin-top:0;color:var(--text-2)}
.article-body ul,.article-body ol{padding-left:22px;margin-top:16px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:10px 0;color:var(--text-2)}
.article-body li::marker{color:var(--primary)}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:14px;border:1px solid var(--border);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--bg-2);color:var(--text);text-align:left;padding:12px 14px;font-weight:600;border-bottom:1px solid var(--border)}
.article-body td{padding:12px 14px;color:var(--text-2);border-bottom:1px solid var(--border-soft)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body pre{
  background:#0E1426;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  padding:16px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;color:#A9DCCF}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0}

/* 标签行 */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--border);
}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}

/* 空状态 */
.empty-state{
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--border);
  border-radius:var(--r-card);
  background:rgba(17,24,49,.5);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  border-radius:16px;
  background:var(--primary-soft);color:var(--primary);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--text);margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);max-width:520px;margin:0 auto 24px}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:24px;min-width:0}
.side-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px;
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:16px;font-weight:600;color:var(--text);margin-bottom:14px;
}
.side-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--primary);flex:none}
.side-list li{border-top:1px solid var(--border-soft)}
.side-list li:first-child{border-top:0}
.side-list a{
  position:relative;
  display:block;
  padding:14px 0 14px 12px;
  font-size:14px;line-height:1.65;color:var(--text-2);
  transition:color var(--t),background var(--t);
  border-radius:6px;
}
.side-list a::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:2px;background:var(--primary);opacity:0;
  transition:opacity var(--t);
}
.side-list a:hover{color:var(--text);background:rgba(46,211,183,.06)}
.side-list a:hover::before{opacity:1}
.side-cta{
  display:flex;flex-direction:column;gap:12px;
  background:var(--bg-2);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px;
}
.side-cta h3{font-size:17px;font-weight:600;color:var(--text);line-height:1.5}
.side-cta p{font-size:14px;line-height:1.75;color:var(--text-2)}
.side-cta .btn{margin-top:4px}

/* 继续浏览 */
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px}
.next-card{
  display:block;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t);
}
.next-card:hover{transform:translateY(-3px);border-color:rgba(46,211,183,.4);box-shadow:var(--shadow-hover);background:var(--card-hover)}
.next-card .next-dir{font-size:12px;font-weight:600;color:var(--violet);letter-spacing:.04em}
.next-card .next-title{
  display:block;margin-top:8px;
  font-size:16px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.next-card .next-desc{display:block;margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.7}

/* 相关推荐 */
.related-block{margin-top:48px}
.related-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
.related-head h2{font-size:20px;font-weight:700;color:var(--text);position:relative;padding-left:14px}
.related-head h2::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:4px;border-radius:2px;background:var(--primary)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{
  display:block;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(46,211,183,.4);box-shadow:var(--shadow-hover)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:16px 16px 18px}
.rel-body h3{
  font-size:15px;font-weight:600;line-height:1.6;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body .rel-time{margin-top:10px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ============ 页脚 ============ */
.site-footer{margin-top:0;background:var(--bg-2);border-top:1px solid var(--border)}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-top:68px;padding-bottom:52px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:290px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.social{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border);
  border-radius:10px;
  color:var(--text-3);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.social:hover{color:var(--primary);border-color:rgba(46,211,183,.45);background:var(--primary-soft)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:var(--text-2);transition:color var(--t),transform var(--t);display:inline-block}
.footer-col ul li a:hover{color:#fff;transform:translateX(-2px)}
.footer-contact li{display:flex;gap:6px;font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.7}
.footer-contact li span:first-child{color:var(--text-3);flex:none}
.footer-contact li span:last-child{font-variant-numeric:tabular-nums}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--border);
  padding-top:22px;padding-bottom:32px;
  font-size:13px;color:var(--text-3);
}
.back-top{color:var(--text-3);transition:color var(--t)}
.back-top:hover{color:var(--primary)}

/* 移动端吸底条 */
.mobile-bar{display:none}
.mobile-bar .bar-link{font-size:14px;color:var(--text-2)}
.mobile-bar .btn{height:40px;padding:0 18px;font-size:14px}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:40px;max-width:780px;margin:0 auto}
  .article-side{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .command-search{display:none}
  .link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .article-title{font-size:29px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-top:56px;padding-bottom:40px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  body{padding-bottom:56px}
  .mobile-bar{
    display:flex;
    position:fixed;left:0;right:0;bottom:0;z-index:90;
    height:56px;
    align-items:center;justify-content:space-between;gap:12px;
    padding:0 16px;
    background:rgba(11,15,30,.97);
    border-top:1px solid var(--border);
  }
  .article-head{padding:28px 0 34px}
  .article-title{font-size:26px}
  .article-wrap{padding:36px 0 56px}
  .article-panel{padding:22px}
  .article-body{font-size:15.5px;line-height:1.9}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px;margin-top:26px}
  .article-side{grid-template-columns:1fr}
  .next-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .rel-thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-brand p{max-width:none}
}
@media (max-width:480px){
  .header-inner{gap:14px}
  .header-tools{gap:10px}
  .header-tools > .btn-primary{display:none}
  .brand{font-size:16px}
  .article-title{font-size:23px}
  .breadcrumb .current{max-width:180px}
  .btn{width:100%;padding:0 18px}
  .btn-text,.next-card .btn{width:auto}
  .mobile-bar .btn{width:auto}
  .article-body table{font-size:13px}
  .article-body th,.article-body td{padding:10px}
}

/* roulang page: category1 */
:root{
  --bg:#0B0F1E;
  --bg-2:#111831;
  --card:#151D38;
  --card-hover:#1A2445;
  --primary:#2ED3B7;
  --primary-deep:#17A88F;
  --primary-soft:rgba(46,211,183,.12);
  --violet:#7C6BFF;
  --violet-soft:rgba(124,107,255,.14);
  --amber:#FFB020;
  --amber-soft:rgba(255,176,32,.12);
  --text:#E8ECF6;
  --text-2:#A9B4CC;
  --text-3:#6B7794;
  --line:#223055;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:18px;
  --shadow:0 8px 24px rgba(3,6,18,.45);
  --shadow-hover:0 14px 34px rgba(3,6,18,.55);
  --tr:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--bg);
  background-image:radial-gradient(rgba(232,236,246,.055) 1px,transparent 1px);
  background-size:28px 28px;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(46,211,183,.3);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:84px 0;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  padding:0 22px;height:46px;white-space:nowrap;
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--primary);color:#07110F;}
.btn-primary:hover{background:var(--primary-deep);}
.btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary);}
.btn-ghost:hover{background:rgba(46,211,183,.10);border-color:var(--primary);}
.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;line-height:1.4;cursor:pointer;background:none;border:0;padding:0;
}
.btn-text svg{transition:transform var(--tr);flex:0 0 auto;}
.btn-text:hover{text-decoration:underline;}
.btn-text:hover svg{transform:translateX(3px);}
.btn-text:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  font-size:12px;font-weight:600;line-height:1;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);letter-spacing:.02em;
}
.badge-violet{background:var(--violet-soft);color:#A79BFF;}
.badge-amber{background:var(--amber-soft);color:var(--amber);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,15,30,.92);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(3,6,18,.55);}
.header-inner{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:var(--primary-soft);border:1px solid rgba(46,211,183,.32);color:var(--primary);
}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:16px;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--text-2);transition:color var(--tr);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--primary);border-radius:2px;transition:width var(--tr);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--primary);}
.nav-link.active::after{width:100%;}
.nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:4px;border-radius:4px;}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:264px;height:40px;padding:0 12px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,211,183,.22);}
.search-box svg{flex:0 0 16px;color:var(--text-3);}
.search-box input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3);}
.search-kbd{
  flex:0 0 auto;font-size:11px;color:var(--text-3);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;line-height:1.4;font-variant-numeric:tabular-nums;
}
.header-link{font-size:15px;font-weight:500;color:var(--text-2);transition:color var(--tr);}
.header-link:hover{color:var(--primary);}
.nav-toggle{
  display:none;width:42px;height:40px;border-radius:var(--r-btn);
  background:var(--bg-2);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--tr),opacity var(--tr);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:90;display:none;
  background:var(--bg);border-bottom:1px solid var(--line);
  padding:84px 24px 28px;max-height:100vh;overflow-y:auto;
  transform:translateY(-102%);transition:transform 220ms ease-out;
}
.mobile-drawer.open{transform:translateY(0);}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;margin-bottom:18px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
}
.drawer-search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:15px;}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);margin-bottom:20px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line);transition:color var(--tr),padding-left var(--tr);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);padding-left:6px;}

/* ============ 矮版首屏 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:320px;display:flex;align-items:flex-end;
  padding:64px 0 52px;border-bottom:1px solid var(--line);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero-bg::after{content:"";position:absolute;inset:0;background:rgba(11,15,30,.74);}
.cat-hero-arc{
  position:absolute;left:50%;bottom:-210px;width:920px;height:420px;
  transform:translateX(-50%);border-radius:50%;
  border:1px solid rgba(124,107,255,.30);pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:12px;
}
.breadcrumb a{color:var(--text-3);transition:color var(--tr);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:#A79BFF;}
.cat-hero h1{
  font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.01em;
  margin:14px 0 14px;
}
.cat-hero-lead{max-width:720px;font-size:16px;line-height:1.9;color:var(--text-2);}

/* ============ 板块标题 ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:36px;
}
.section-title{
  position:relative;padding-left:16px;font-size:28px;line-height:1.35;
  font-weight:700;letter-spacing:.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:5px;width:4px;height:22px;
  border-radius:2px;background:var(--primary);
}
.section-desc{font-size:15px;color:var(--text-2);max-width:560px;line-height:1.8;}
.section-side{display:flex;align-items:center;gap:20px;flex:0 0 auto;}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.media-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr),background var(--tr);
}
.media-card:hover{
  transform:translateY(-3px);background:var(--card-hover);
  box-shadow:var(--shadow-hover);border-color:rgba(46,211,183,.30);
}
.media-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr);}
.media-card:hover .media-thumb img{transform:scale(1.03);}
.media-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.media-body h3{font-size:18px;font-weight:600;line-height:1.45;}
.media-body p{font-size:14px;line-height:1.7;color:var(--text-2);}
.media-body .btn-text{margin-top:auto;padding-top:6px;}

/* ============ 数据条 ============ */
.stats-band{
  background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stats-inner{display:grid;grid-template-columns:0.9fr 1.6fr;gap:48px;align-items:center;}
.stats-copy h2{font-size:22px;font-weight:700;margin-bottom:10px;line-height:1.4;}
.stats-copy p{font-size:14px;color:var(--text-2);line-height:1.8;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);}
.stat-item{padding:0 26px;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{
  display:block;font-size:40px;font-weight:700;line-height:1.2;
  color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat-num small{font-size:20px;font-weight:700;margin-left:2px;}
.stat-label{display:block;margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  position:relative;padding:26px 22px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.step:hover{transform:translateY(-3px);border-color:rgba(46,211,183,.30);box-shadow:var(--shadow-hover);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;margin-bottom:16px;
  background:var(--violet-soft);color:#A79BFF;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.45;}
.step p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ============ 赛事清单列表 ============ */
.match-list{border-top:1px solid var(--line);}
.match-item{
  position:relative;display:flex;align-items:center;gap:20px;
  min-height:64px;padding:16px 20px 16px 22px;border-bottom:1px solid var(--line);
  transition:background var(--tr);
}
.match-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity var(--tr);
}
.match-item:hover{background:rgba(21,29,56,.55);}
.match-item:hover::before{opacity:1;}
.match-item .match-name{font-size:16px;font-weight:600;flex:1;}
.match-item .match-meta{font-size:14px;color:var(--text-2);flex:0 0 auto;}
.match-item .match-time{
  flex:0 0 auto;font-size:13px;color:var(--amber);
  font-variant-numeric:tabular-nums;min-width:96px;text-align:right;
}
.list-hint{margin-top:18px;font-size:13px;color:var(--text-3);}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--tr),background var(--tr);
}
.faq-item:hover{border-color:rgba(46,211,183,.24);}
.faq-item[open]{border-color:rgba(46,211,183,.35);background:var(--card-hover);}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:17px;font-weight:600;line-height:1.5;
  cursor:pointer;list-style:none;transition:color var(--tr);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-item[open] .faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;
  border-radius:2px;background:var(--primary);
}
.faq-icon{position:relative;flex:0 0 14px;width:14px;height:14px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--tr),opacity var(--tr);
}
.faq-icon::before{left:0;top:6px;width:14px;height:2px;}
.faq-icon::after{left:6px;top:0;width:2px;height:14px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ============ CTA 带 + 表单 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-hero);
  background:var(--bg-2);
}
.cta-band-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cta-band-bg::after{content:"";position:absolute;inset:0;background:rgba(11,15,30,.82);}
.cta-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;
  gap:48px;padding:48px;align-items:start;
}
.cta-copy h2{font-size:26px;font-weight:700;line-height:1.4;margin:14px 0 12px;}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--text-2);margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.sub-form{
  background:rgba(21,29,56,.72);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:14px;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field select,.field textarea{
  height:44px;padding:0 14px;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-btn);font-size:15px;color:var(--text);outline:none;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.field textarea{height:96px;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{
  border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,211,183,.22);
}
.field input:invalid:not(:placeholder-shown){border-color:#F2555A;box-shadow:0 0 0 2px rgba(242,85,90,.18);}
.form-msg{
  display:none;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(51,196,141,.12);border:1px solid rgba(51,196,141,.4);
  color:#7FE0BC;font-size:14px;line-height:1.6;
}
.form-msg.show{display:block;}
.form-note{font-size:12px;color:var(--text-3);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);margin-top:84px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-top:64px;padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px;}
.footer-social{display:flex;gap:12px;margin-top:18px;}
.social{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:color var(--tr),border-color var(--tr),background var(--tr);
}
.social:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color var(--tr),transform var(--tr);display:inline-block;}
.footer-col ul a:hover{color:#fff;transform:translateX(2px);}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);line-height:1.7;}
.footer-contact li span:last-child{font-variant-numeric:tabular-nums;}
.footer-bottom{border-top:1px solid var(--line);}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:20px;padding-bottom:20px;font-size:13px;color:var(--text-3);
}
.footer-bottom-inner p{margin:0;}

/* ============ 移动端吸底条 ============ */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:56px;padding:0 18px calc(0px + env(safe-area-inset-bottom,0px));
  background:rgba(11,15,30,.96);border-top:1px solid var(--line);
  align-items:center;justify-content:space-between;gap:14px;
}
.mobile-bar a{font-size:15px;font-weight:600;color:var(--text-2);}
.mobile-bar .btn{flex:1;max-width:200px;}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1200px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .main-nav,.search-box,.header-link{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats-inner{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-top:48px;}
  .cat-hero h1{font-size:30px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .section-title{font-size:22px;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;gap:0;}
  .stat-item{border-left:0;border-top:1px solid var(--line);padding:18px 0 0;margin-top:18px;}
  .stat-item:first-child{border-top:0;margin-top:0;padding-top:0;}
  .stat-num{font-size:34px;}
  .cat-hero{min-height:300px;padding:80px 0 40px;}
  .cat-hero h1{font-size:26px;}
  .match-item{flex-wrap:wrap;gap:8px 14px;}
  .match-item .match-name{flex:1 1 100%;}
  .match-item .match-time{text-align:left;min-width:0;}
  .cta-inner{padding:24px;}
  .cta-copy h2{font-size:22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;padding-top:40px;padding-bottom:32px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
  .mobile-bar{display:flex;}
  body{padding-bottom:56px;}
}
@media (max-width:480px){
  .brand-text{font-size:17px;}
  .cat-hero h1{font-size:24px;}
  .section-title{font-size:20px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .media-body{padding:20px;}
}

/* roulang page: category2 */
:root{
  --bg:#0B0F1E;
  --bg-2:#111831;
  --card:#151D38;
  --card-hover:#1A2445;
  --brand:#2ED3B7;
  --brand-deep:#17A88F;
  --brand-soft:rgba(46,211,183,.12);
  --purple:#7C6BFF;
  --purple-soft:rgba(124,107,255,.14);
  --amber:#FFB020;
  --amber-soft:rgba(255,176,32,.14);
  --text:#E8ECF6;
  --text-2:#A9B4CC;
  --text-3:#6B7794;
  --line:#223055;
  --line-soft:rgba(34,48,85,.65);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-hero:18px;
  --shadow-card:0 8px 24px rgba(3,6,18,.45);
  --shadow-hover:0 14px 34px rgba(3,6,18,.55);
  --ease:180ms ease-out;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(232,236,246,.06) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.9;
}
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}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#07110F}
.btn-primary:hover{background:var(--brand-deep);box-shadow:0 10px 24px rgba(46,211,183,.22)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:15px;font-weight:600;
}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover{text-decoration:underline}
.btn-text:hover svg{transform:translateX(3px)}
.btn-text:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1;
}
.badge-brand{background:var(--brand-soft);color:var(--brand)}
.badge-purple{background:var(--purple-soft);color:#A99CFF}
.badge-amber{background:var(--amber-soft);color:var(--amber)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,15,30,.92);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 30px rgba(3,6,18,.55)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.01em;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
  border:1px solid rgba(46,211,183,.35);
  flex-shrink:0;
}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--text-2);transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);transition:width var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--text)}
.nav-link.active::after{width:100%}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{position:relative;width:262px}
.search-box input{
  width:100%;height:40px;border-radius:var(--radius-btn);
  padding:0 56px 0 38px;
  background:var(--bg-2);border:1px solid var(--line);
  font-size:14px;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(46,211,183,.22)}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3);pointer-events:none}
.kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--text-3);line-height:1;
  padding:3px 6px;border-radius:6px;border:1px solid var(--line);
  background:#0E1426;font-variant-numeric:tabular-nums;
}
.link-quiet{font-size:14px;color:var(--text-2);transition:color var(--ease)}
.link-quiet:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--line);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-drawer{display:none}

/* ---------- 矮版 Hero ---------- */
.hero-page{
  position:relative;
  display:flex;align-items:center;
  min-height:340px;
  background-image:linear-gradient(rgba(11,15,30,.72),rgba(11,15,30,.88)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-page .container{padding-top:54px;padding-bottom:54px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);line-height:1.6}
.crumb a{color:var(--text-3);transition:color var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .current{color:#A99CFF}
.page-title{
  margin-top:12px;
  font-size:34px;font-weight:700;line-height:1.3;
  max-width:820px;
}
.hero-lead{
  margin-top:14px;max-width:860px;
  font-size:16px;line-height:1.9;color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0;position:relative;z-index:1}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.section-title{
  display:flex;align-items:center;gap:12px;
  font-size:28px;font-weight:700;
}
.section-title::before{
  content:"";width:4px;height:22px;border-radius:2px;background:var(--brand);display:block;flex-shrink:0;
}
.section-desc{max-width:600px;font-size:15px;color:var(--text-2);line-height:1.9}

/* ---------- 竖版空间卡 ---------- */
.space-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.space-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease);
}
.space-card:hover{
  transform:translateY(-3px);background:var(--card-hover);
  border-color:rgba(46,211,183,.3);box-shadow:var(--shadow-hover);
}
.space-card .thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#0E1426}
.space-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.space-card:hover .thumb img{transform:scale(1.03)}
.thumb .tag{position:absolute;top:12px;left:12px}
.space-card .body{padding:18px 18px 20px}
.space-card h3{font-size:17px;font-weight:600}
.space-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meter{height:6px;border-radius:999px;background:#0E1426;overflow:hidden;margin-top:14px;border:1px solid var(--line-soft)}
.meter i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--purple))}
.meter-label{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3);margin-top:8px}

/* ---------- 左右交替介绍块 ---------- */
.split{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
}
.split+.split{margin-top:72px}
.split.reverse{grid-template-columns:7fr 5fr}
.split.reverse .split-media{order:2}
.split.reverse .split-body{order:1}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
  box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease);
}
.split-media:hover img{transform:scale(1.02);box-shadow:var(--shadow-hover)}
.split-media .glow{
  position:absolute;left:-16px;bottom:-16px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,107,255,.22),transparent 70%);
  pointer-events:none;
}
.split-body h3{font-size:22px;font-weight:700}
.split-body>p{margin-top:14px;color:var(--text-2);font-size:15px}
.points{list-style:none;margin:18px 0 22px}
.points li{
  position:relative;padding-left:18px;margin-bottom:10px;
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.points li::before{
  content:"";position:absolute;left:0;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  position:relative;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-3px);background:var(--card-hover);border-color:rgba(46,211,183,.3)}
.step-num{
  font-size:26px;font-weight:700;color:var(--amber);line-height:1;
}
.step h4{margin-top:14px;font-size:18px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2)}
.step .line{
  position:absolute;top:40px;right:-12px;width:24px;height:1px;background:var(--line);
}
.step:last-child .line{display:none}

/* ---------- 数据条 ---------- */
.stat-band{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;z-index:1}
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:38px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat-num{font-size:40px;font-weight:700;color:var(--amber);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-2)}
.stat-note{margin-top:16px;font-size:14px;color:var(--text-3);padding:0 24px 34px}

/* ---------- FAQ ---------- */
.faq{max-width:860px}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-left:2px solid transparent;
  border-radius:var(--radius-card);margin-bottom:14px;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{background:var(--card-hover);border-color:rgba(46,211,183,.3);border-left-color:rgba(46,211,183,.3)}
.faq-item[open]{border-left-color:var(--brand);background:var(--card-hover)}
.faq-q{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;
  font-size:16px;font-weight:600;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.faq-icon{
  position:relative;width:16px;height:16px;flex-shrink:0;color:var(--brand);
  transition:transform var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:opacity var(--ease)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-hero);
  padding:46px 48px;
  background-image:linear-gradient(100deg,rgba(11,15,30,.94),rgba(17,24,49,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;font-weight:700}
.cta-band p{margin-top:12px;max-width:620px;font-size:15px;color:var(--text-2)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:20px;font-size:14px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.social{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.social:hover{color:var(--brand);border-color:rgba(46,211,183,.4);background:var(--brand-soft)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px;font-size:14px;color:var(--text-2)}
.footer-col li a{display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col li a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{display:flex;gap:8px;font-variant-numeric:tabular-nums}
.footer-contact li span:first-child{color:var(--text-3);flex-shrink:0}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;color:var(--text-3);
  transition:color var(--ease);
}
.to-top:hover{color:var(--brand)}

/* ---------- 吸底条 ---------- */
.mobile-bar{display:none}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1200px){
  .split{gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .main-nav,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav-drawer{
    position:fixed;left:0;right:0;top:68px;bottom:0;z-index:79;
    background:var(--bg);border-top:1px solid var(--line);
    padding:20px 24px 96px;overflow-y:auto;
  }
  .nav-drawer.open{display:block}
  .drawer-search{position:relative;width:100%;margin-bottom:20px}
  .drawer-search input{
    width:100%;height:44px;border-radius:10px;padding:0 16px 0 40px;
    background:var(--bg-2);border:1px solid var(--line);color:var(--text);font-size:14px;
  }
  .drawer-search input::placeholder{color:var(--text-3)}
  .drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(46,211,183,.22)}
  .drawer-search .search-icon{left:14px}
  .drawer-list{list-style:none}
  .drawer-list li{border-bottom:1px solid var(--line-soft)}
  .drawer-list a{
    display:flex;align-items:center;justify-content:space-between;
    height:48px;font-size:15px;color:var(--text-2);
  }
  .drawer-list a:hover,.drawer-list a.active{color:var(--brand)}
  .drawer-cta{margin-top:24px}
  .drawer-cta .btn{width:100%}
  .space-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step .line{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line)}
  .stat:nth-child(2n){border-right:none}
  .split,.split.reverse{grid-template-columns:1fr;gap:24px}
  .split.reverse .split-media,.split.reverse .split-body{order:0}
  .split-media img{aspect-ratio:16/9}
  .split+.split{margin-top:48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section-head{margin-bottom:26px}
  .section-title{font-size:23px}
  .page-title{font-size:26px}
  .hero-lead{font-size:15px}
  .hero-page .container{padding-top:40px;padding-bottom:40px}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .space-grid{grid-template-columns:1fr}
  .space-card .thumb{aspect-ratio:16/10}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:26px 18px}
  .stat-num{font-size:32px}
  .faq-q{font-size:15px;padding:12px 18px}
  .faq-a{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  body{padding-bottom:72px}
  .mobile-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:82;
    display:flex;align-items:center;gap:12px;
    height:56px;padding:0 18px calc(0px + env(safe-area-inset-bottom,0px));
    background:rgba(11,15,30,.96);
    border-top:1px solid var(--line);
    backdrop-filter:saturate(140%);
  }
  .mobile-bar .link-quiet{margin-right:auto;color:var(--text)}
  .mobile-bar .btn{flex:0 0 auto}
}
@media (max-width:480px){
  body{font-size:15px}
  .page-title{font-size:23px}
  .section-title{font-size:21px}
  .btn{width:100%}
  .nav-toggle{width:40px;height:40px}
}

/* roulang page: category3 */
:root{
  --bg:#0B0F1E;
  --bg-2:#111831;
  --card:#151D38;
  --card-hover:#1A2445;
  --primary:#2ED3B7;
  --primary-deep:#17A88F;
  --primary-tint:rgba(46,211,183,.12);
  --secondary:#7C6BFF;
  --secondary-tint:rgba(124,107,255,.14);
  --amber:#FFB020;
  --amber-tint:rgba(255,176,32,.12);
  --text:#E8ECF6;
  --text-2:#A9B4CC;
  --text-3:#6B7794;
  --line:#223055;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-hero:18px;
  --shadow:0 8px 24px rgba(3,6,18,.45);
  --shadow-hover:0 14px 34px rgba(3,6,18,.55);
  --success:#33C48D;
  --warning:#FFB020;
  --error:#F2555A;
  --container:1200px;
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(rgba(232,236,246,.055) 1px, transparent 1px),
    radial-gradient(rgba(46,211,183,.05) 1px, transparent 1px);
  background-size:36px 36px, 72px 72px;
  background-position:0 0, 18px 18px;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--primary)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
h2{font-size:28px}
h3{font-size:22px}
h4{font-size:18px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 18px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,15,30,.93);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(3,6,18,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--text)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:var(--primary-tint);border:1px solid rgba(46,211,183,.28);
  flex:0 0 auto;
}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--primary);transition:right .18s ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{right:0}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{right:0}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:262px;height:40px;padding:0 10px 0 12px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
  color:var(--text-3);
}
.command-search svg{flex:0 0 auto}
.command-search input{
  flex:1 1 auto;min-width:0;height:100%;background:none;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.command-search input::placeholder{color:var(--text-3)}
.kbd{
  flex:0 0 auto;font-size:11px;line-height:1;padding:5px 6px;border-radius:6px;
  border:1px solid var(--line);color:var(--text-3);background:rgba(11,15,30,.7);
}
.text-link{font-size:15px;font-weight:500;color:var(--text-2)}
.text-link:hover{color:var(--primary)}
.nav-toggle{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;color:var(--text)}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#07110F}
.btn-primary:hover{background:var(--primary-deep);color:#07110F}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(46,211,183,.10);color:var(--primary)}
.btn-ghost:active{transform:scale(.98)}
.btn-text{height:auto;padding:0;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text svg{transition:transform .18s ease-out}
.btn-text:hover{text-decoration:underline;color:var(--primary)}
.btn-text:hover svg{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}

/* mobile drawer */
.drawer{display:none}
@media (max-width:1023px){
  .main-nav,.command-search,.header-actions .text-link{display:none}
  .nav-toggle{display:inline-flex}
  .drawer{display:block;position:fixed;inset:var(--nav-h) 0 0 0;z-index:55;background:rgba(11,15,30,.98);border-top:1px solid var(--line);overflow-y:auto;padding:20px 0 40px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .18s ease-out,transform .18s ease-out}
  .drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .drawer-inner{padding:0 24px}
  .drawer .mobile-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;color:var(--text-3);margin-bottom:20px}
  .drawer .mobile-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font-size:15px}
  .drawer-nav a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
  .drawer-nav a.active{color:var(--primary)}
  .drawer-nav a:hover{color:var(--primary)}
  .drawer-cta{margin-top:22px;display:grid;gap:12px}
  .drawer-cta .btn{width:100%}
}
body.no-scroll{overflow:hidden}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,15,30,.72),rgba(11,15,30,.88));
}
.page-hero .container{position:relative;z-index:1;padding-top:56px;padding-bottom:48px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:14px;flex-wrap:wrap}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#3A4870}
.crumbs .current{color:var(--secondary)}
.hero-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--primary);background:var(--primary-tint);border:1px solid rgba(46,211,183,.25);
  margin-bottom:16px;
}
.page-hero h1{font-size:32px;max-width:820px}
.page-hero h1 .accent{color:var(--primary)}
.hero-lead{margin-top:16px;max-width:760px;font-size:16px;color:var(--text-2);line-height:1.9}
.hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:14px 26px;font-size:14px;color:var(--text-2)}
.hero-meta b{color:var(--amber);font-variant-numeric:tabular-nums;font-weight:700}
@media (max-width:767px){
  .page-hero .container{padding-top:38px;padding-bottom:34px}
  .page-hero h1{font-size:26px}
}

/* ---------- section basics ---------- */
section{padding:84px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-title{position:relative;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;background:var(--primary)}
.section-title h2{font-size:28px}
.section-title p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:1023px){section{padding:64px 0}}
@media (max-width:767px){section{padding:52px 0}.section-title h2{font-size:23px}}

/* ---------- 品牌主张卡片 ---------- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.card:hover{background:var(--card-hover);transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(46,211,183,.3)}
.card-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-tint);color:var(--primary);margin-bottom:16px;
}
.card-icon.violet{background:var(--secondary-tint);color:var(--secondary)}
.card h3{font-size:17px;font-weight:600}
.card p{margin-top:12px;font-size:14px;color:var(--text-2);line-height:1.75}
.card .card-foot{margin-top:16px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;background:var(--primary-tint);color:var(--primary);
}
.badge.violet{background:var(--secondary-tint);color:var(--secondary)}
.badge.amber{background:var(--amber-tint);color:var(--amber)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
@media (max-width:1023px){.card-grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.card-grid-3{grid-template-columns:1fr}}

/* ---------- 时间轴 + 侧栏 ---------- */
.tl-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:7px;top:12px;bottom:12px;width:1px;
  background:linear-gradient(180deg,rgba(124,107,255,.6),rgba(124,107,255,.08));
}
.tl-item{position:relative;padding-left:34px;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:6px;width:15px;height:15px;border-radius:50%;
  background:var(--bg);border:2px solid var(--secondary);box-shadow:0 0 0 4px rgba(124,107,255,.14);
}
.tl-dot.hot{border-color:var(--primary);box-shadow:0 0 0 4px rgba(46,211,183,.14)}
.tl-date{font-size:13px;color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.tl-title{margin-top:8px;font-size:18px;font-weight:600;line-height:1.5}
.tl-title a:hover{color:var(--primary)}
.tl-desc{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;max-width:640px}
.tl-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}

.side-stack{display:grid;gap:20px;position:sticky;top:calc(var(--nav-h) + 20px)}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}
.side-card h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}
.side-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--primary)}
.side-card p{margin-top:12px;font-size:14px;color:var(--text-2);line-height:1.75}
.side-card .btn{width:100%;margin-top:16px}
.side-list{margin-top:14px;display:grid;gap:2px}
.side-list li{border-top:1px solid var(--line)}
.side-list li:first-child{border-top:0}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;font-size:14px;color:var(--text-2)}
.side-list a:hover{color:var(--text);padding-left:6px}
.side-list .tag{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.contact-lines{margin-top:14px;display:grid;gap:10px;font-size:14px;color:var(--text-2)}
.contact-lines .row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed rgba(34,48,85,.85);padding-bottom:8px}
.contact-lines .row:last-child{border-bottom:0}
.contact-lines b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
@media (max-width:1023px){
  .tl-layout{grid-template-columns:1fr;gap:28px}
  .side-stack{position:static}
}

/* ---------- 数据条 ---------- */
.metrics{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:32px 24px}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:0 20px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric .num{font-size:40px;font-weight:700;color:var(--amber);line-height:1.1;font-variant-numeric:tabular-nums}
.metric .num span{font-size:18px;margin-left:2px}
.metric .label{margin-top:8px;font-size:14px;color:var(--text-2)}
@media (max-width:767px){
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .metric{padding:0 16px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .metric:nth-child(3),.metric:nth-child(4){border-top:1px solid var(--line);padding-top:20px}
  .metric .num{font-size:32px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 0 14px 0;font-size:16px;font-weight:600;text-align:left;color:var(--text);
  border-left:2px solid transparent;padding-left:14px;transition:border-color .18s ease-out,color .18s ease-out;
}
.faq-item.is-open .faq-q{border-left-color:var(--primary);color:var(--primary)}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;flex:0 0 auto;width:16px;height:16px;transition:transform .18s ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{top:0;left:7px;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{display:none;padding:0 0 20px 14px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA / 表单 ---------- */
.cta-band{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px}
.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%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:12px 14px;font-size:15px;color:var(--text);outline:none;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input{height:44px;padding:0 14px}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,211,183,.28)}
.field.has-error input,.field.has-error textarea{border-color:var(--error)}
.field .err{margin-top:6px;font-size:12px;color:var(--error);display:none}
.field.has-error .err{display:block}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3)}
.form-alert{display:none;margin-top:16px;padding:12px 14px;border-radius:10px;font-size:14px;background:rgba(51,196,141,.12);color:var(--success);border:1px solid rgba(51,196,141,.3)}
.form-alert.is-visible{display:block}
.cta-side{display:grid;gap:20px}
.cta-side figure{margin:0;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line)}
.cta-side img{width:100%;aspect-ratio:16/10;object-fit:cover}
.cta-side .info{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}
.cta-side .info h3{font-size:17px;font-weight:600}
.cta-side .info p{margin-top:12px;font-size:14px;color:var(--text-2);line-height:1.75}
.cta-side .info .btn{margin-top:16px}
@media (max-width:1023px){.cta-layout{grid-template-columns:1fr}}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:18px}
.social{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-2)}
.social:hover{color:var(--primary);border-color:var(--primary);background:rgba(46,211,183,.08)}
.footer-col h4{font-size:14px;color:var(--primary);margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--text);transform:translateX(2px);display:inline-block}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:12px}
.footer-contact span:last-child{font-variant-numeric:tabular-nums;color:var(--text)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 24px;font-size:13px;color:var(--text-3);
}
.to-top{font-size:13px;color:var(--text-2)}
.to-top:hover{color:var(--primary)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* ---------- mobile sticky bar ---------- */
.sticky-bar{display:none}
@media (max-width:767px){
  .sticky-bar{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    position:fixed;left:0;right:0;bottom:0;z-index:70;height:56px;
    padding:0 18px calc(0px + env(safe-area-inset-bottom,0px));
    background:rgba(11,15,30,.97);border-top:1px solid var(--line);
  }
  .sticky-bar .call{font-size:14px;color:var(--text-2)}
  .sticky-bar .call b{color:var(--text);font-variant-numeric:tabular-nums}
  .sticky-bar .btn{height:38px;padding:0 18px;font-size:14px}
  .cta-band,.site-footer{padding-bottom:64px}
  .btn{width:100%}
  .hero-meta{gap:10px 18px}
}

@media (max-width:480px){
  body{font-size:15px}
  .page-hero h1{font-size:23px}
  .section-title h2{font-size:21px}
  .metric .num{font-size:28px}
  .brand{font-size:16px}
}