/* roulang page: index */
:root{
  --bg-0:#060A14;--bg-1:#0A1120;--bg-2:#0E1729;
  --primary:#20E3C4;--primary-2:#7BF3DD;
  --accent:#FF7A2F;
  --text-1:#EAF2FF;--text-2:#9AA8C0;--text-3:#6B7891;
  --ok:#22C55E;--warn:#FFB020;--err:#FF5A5F;
  --line:rgba(255,255,255,.10);--line-2:rgba(255,255,255,.06);
  --glass-bg:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-s:10px;--r-m:16px;--r-l:22px;--r-pill:999px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.6);
  --glow:0 0 0 1px rgba(32,227,196,.35),0 10px 40px -12px rgba(32,227,196,.45);
  --font:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  --mono:ui-monospace,'JetBrains Mono','SFMono-Regular',Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font);
  font-size:16px;line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(720px 520px at 10% -6%,rgba(32,227,196,.06),transparent 70%),
    radial-gradient(640px 480px at 92% 14%,rgba(255,122,47,.05),transparent 72%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:var(--text-1);font-weight:700;line-height:1.3;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.2;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,36px)}
h3{font-size:20px}
p{margin:0 0 1em;color:var(--text-2)}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--primary)}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.grid-container.page-wrap{max-width:1248px;padding-left:24px;padding-right:24px}
.section{padding:88px 0;position:relative}
.section-tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--primary);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(32,227,196,.28);
  background:rgba(32,227,196,.06);
  margin-bottom:18px;
}
.eyebrow i{font-size:11px}
.section-head h2{margin-bottom:14px}
.section-head .lead{color:var(--text-2);font-size:16px;margin:0}
.text-muted{color:var(--text-3)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--primary);color:#04231E;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--primary-2);color:#04231E;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(32,227,196,.5),0 16px 46px -14px rgba(32,227,196,.6)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  border-color:var(--line);color:var(--text-1);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(32,227,196,.5);color:var(--primary-2);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:54px;padding:0 32px;font-size:16px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary-2)}
.link-more i{font-size:12px;transition:transform .22s ease}
.link-more:hover i{transform:translateX(4px)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.badge-primary{border-color:rgba(32,227,196,.35);color:var(--primary-2);background:rgba(32,227,196,.07)}
.badge-accent{border-color:rgba(255,122,47,.35);color:var(--accent);background:rgba(255,122,47,.08)}
.badge-ok{border-color:rgba(34,197,94,.35);color:var(--ok);background:rgba(34,197,94,.08)}

.glass{
  background:var(--glass-bg);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.18);
}

/* Dock 导航 */
.dock-outer{position:fixed;top:16px;left:0;right:0;z-index:90;padding:0 20px;pointer-events:none}
.dock{
  pointer-events:auto;
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.18);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.dock.is-scrolled{
  background:linear-gradient(160deg,rgba(10,17,32,.92),rgba(6,10,20,.88));
  border-color:rgba(255,255,255,.14);
  box-shadow:var(--shadow-2),inset 0 1px 0 rgba(255,255,255,.12);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:38px;height:38px;flex-shrink:0;border-radius:11px;
  display:grid;place-items:center;
  border:1px solid rgba(32,227,196,.42);
  background:linear-gradient(150deg,rgba(32,227,196,.18),rgba(32,227,196,.02));
  box-shadow:0 0 0 1px rgba(32,227,196,.12),0 8px 24px -12px rgba(32,227,196,.6);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:18px;font-weight:700;letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.12em;color:var(--primary);font-weight:500}
.dock-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);font-weight:500;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary-2);background:rgba(32,227,196,.09)}
.nav-link.is-active::before{
  content:"";position:absolute;left:50%;top:4px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  color:var(--text-2);border:1px solid var(--line);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(32,227,196,.45);background:rgba(32,227,196,.06)}
.menu-btn{display:none}
.dock-search{
  pointer-events:auto;
  max-width:1120px;margin:10px auto 0;
  padding:14px 18px;border-radius:var(--r-m);
  background:linear-gradient(160deg,rgba(10,17,32,.95),rgba(6,10,20,.9));
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  display:none;
}
.dock-search.is-open{display:block}
.dock-search form{display:flex;gap:10px}
.dock-search input{
  flex:1;height:46px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  color:var(--text-1);transition:border-color .22s ease,box-shadow .22s ease;
}
.dock-search input::placeholder{color:var(--text-3)}
.dock-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:95;background:rgba(3,6,12,.7);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);z-index:100;
  padding:28px 22px;
  background:linear-gradient(180deg,rgba(12,20,36,.98),rgba(6,10,20,.98));
  border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--text-2)}
.drawer-close:hover{color:var(--primary);border-color:rgba(32,227,196,.45)}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:22px}
.drawer-nav a{
  height:56px;display:flex;align-items:center;justify-content:space-between;
  font-size:16px;color:var(--text-1);border-bottom:1px solid var(--line-2);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary)}
.drawer-nav a i{font-size:12px;color:var(--text-3)}
.drawer-search{display:flex;gap:10px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:48px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);color:var(--text-1);
}
.drawer-search input::placeholder{color:var(--text-3)}

/* Hero */
.hero{
  position:relative;
  padding:148px 0 92px;
  background-image:linear-gradient(180deg,rgba(6,10,20,.72),rgba(6,10,20,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-160px;top:80px;width:560px;height:560px;
  border-radius:50%;border:1px solid rgba(32,227,196,.2);
  pointer-events:none;
}
.hero-tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.hero h1{max-width:15em;margin-bottom:18px}
.hero .hero-sub{font-size:17px;color:var(--text-2);max-width:34em;margin:0 0 28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.hero-pills span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text-2);
  padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-2);background:rgba(255,255,255,.03);
}
.hero-pills i{color:var(--primary);font-size:11px}
.hero-card{border-radius:var(--r-l);padding:22px;box-shadow:var(--shadow-2)}
.hero-card-head{
  display:flex;align-items:center;gap:9px;
  font-size:13px;color:var(--text-2);letter-spacing:.06em;margin-bottom:16px;
}
.hero-card-head .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15)}
.hero-card-list{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.hero-card-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;padding-bottom:12px;border-bottom:1px solid var(--line-2)}
.hero-card-list li:last-child{border-bottom:0;padding-bottom:0}
.hero-card-list .k{color:var(--text-3)}
.hero-card-list .v{color:var(--primary-2);font-size:13px}
.hero-card-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-m);border:1px solid var(--line)}

/* 指标条 */
.metrics{border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);background:rgba(10,17,32,.5);padding:36px 0}
.metrics-row{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:0 22px;border-right:1px solid var(--line-2);text-align:left}
.metric:last-child{border-right:0}
.metric .num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--primary);line-height:1.2;display:block}
.metric .lb{font-size:13px;color:var(--text-3);display:block;margin-top:6px}

/* 功能分组 */
.feature-group{display:grid;grid-template-columns:88px 1fr 300px;gap:32px;align-items:start;padding:34px 0;border-top:1px solid var(--line-2)}
.feature-group:last-child{border-bottom:1px solid var(--line-2)}
.fg-index{
  width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:16px;color:var(--primary);
  border:1px solid rgba(32,227,196,.4);background:rgba(32,227,196,.06);
}
.fg-body h3{margin-bottom:12px;font-size:22px}
.fg-body p{font-size:15px;margin-bottom:16px}
.fg-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.fg-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text-2)}
.fg-list li::before{content:"";position:absolute;left:0;top:12px;width:12px;height:2px;border-radius:2px;background:var(--primary)}
.fg-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-m);border:1px solid var(--line)}

/* 场景 */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:40px 0}
.scene.reverse .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-l);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.scene-body h3{font-size:24px;margin-bottom:14px}
.scene-body p{font-size:15px;margin-bottom:18px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}

/* 路径卡（非对称） */
.paths-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.path-main{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background:rgba(14,23,41,.7);
  transition:transform .24s ease,border-color .24s ease;
  display:flex;flex-direction:column;
}
.path-main:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4)}
.path-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.path-main .pc{padding:24px}
.path-main h3{font-size:22px;margin:14px 0 10px}
.path-main p{font-size:14px;margin-bottom:16px}
.path-side{display:flex;flex-direction:column;gap:24px}
.path-small{
  display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:center;
  padding:16px;border-radius:var(--r-m);
  border:1px solid var(--line);background:rgba(14,23,41,.55);
  transition:transform .24s ease,border-color .24s ease;
}
.path-small:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4)}
.path-small img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-s);border:1px solid var(--line)}
.path-small h4{font-size:16px;margin:8px 0 6px;color:var(--text-1);font-weight:700}
.path-small .meta{font-size:12px;color:var(--text-3);font-family:var(--mono)}
.path-stat{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px}
.path-stat span{font-size:12px;color:var(--text-3);font-family:var(--mono)}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  border-radius:var(--r-l);padding:30px 26px;
  border:1px solid var(--line);background:rgba(14,23,41,.6);
  transition:transform .24s ease,border-color .24s ease;
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.35)}
.price-card.featured{
  background:var(--glass-bg);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid rgba(32,227,196,.5);
  box-shadow:var(--glow);
  padding:38px 26px;margin-top:-12px;position:relative;
}
.price-card .tag-row{position:absolute;top:-13px;right:20px}
.price-name{font-size:15px;color:var(--text-2);letter-spacing:.06em;margin-bottom:14px;display:block}
.price-num{font-family:var(--mono);font-size:36px;font-weight:700;color:var(--text-1);line-height:1.1}
.price-num small{font-size:14px;color:var(--text-3);font-family:var(--font);font-weight:400;margin-left:4px}
.price-desc{font-size:14px;color:var(--text-3);margin:12px 0 20px}
.price-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px}
.price-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2)}
.price-list i{color:var(--primary);font-size:12px;margin-top:7px}
.price-card .btn{width:100%}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}
.news-feature{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-l);border:1px solid var(--line);background:rgba(14,23,41,.62);
  transition:transform .24s ease,border-color .24s ease;
}
.news-feature:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4)}
.news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-feature:hover img{transform:scale(1.03)}
.news-feature .nc{padding:24px;display:flex;flex-direction:column;flex:1}
.news-feature h3{font-size:21px;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature p{font-size:14px;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side{display:flex;flex-direction:column;gap:20px}
.news-mini{
  display:grid;grid-template-columns:132px 1fr;gap:16px;
  padding:16px;border-radius:var(--r-m);
  border:1px solid var(--line);background:rgba(14,23,41,.5);
  transition:transform .24s ease,border-color .24s ease;
}
.news-mini:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4)}
.news-mini img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-s);border:1px solid var(--line);transition:transform .3s ease}
.news-mini:hover img{transform:scale(1.03)}
.news-mini h4{font-size:15px;margin:8px 0 6px;color:var(--text-1);font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--text-3)}
.news-meta .time{font-family:var(--mono)}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto}
.news-empty{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line);border-radius:var(--r-l);background:rgba(10,17,32,.4);text-align:center;padding:30px;
}
.news-empty i{font-size:26px;color:var(--primary);opacity:.8}
.news-empty p{margin:0;font-size:14px;color:var(--text-3)}

/* FAQ */
.accordion{display:flex;flex-direction:column;gap:12px;list-style:none;margin:0;padding:0}
.accordion-item{
  border-radius:var(--r-m);border:1px solid var(--line);
  background:rgba(14,23,41,.66);overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.accordion-item.is-open{border-color:rgba(32,227,196,.4);background:rgba(14,23,41,.86)}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;
  font-size:16px;font-weight:600;color:var(--text-1);
  position:relative;
}
.accordion-title:hover{color:var(--primary-2)}
.accordion-item.is-open .accordion-title{color:var(--primary)}
.accordion-item.is-open .accordion-title::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;background:var(--primary);
}
.accordion-title i{font-size:13px;color:var(--text-3);transition:transform .24s ease,color .24s ease}
.accordion-item.is-open .accordion-title i{transform:rotate(180deg);color:var(--primary)}
.accordion-content{display:none;padding:0 20px 20px;font-size:14px;color:var(--text-2)}
.accordion-item.is-open .accordion-content{display:block}
.accordion-content p{margin:0 0 10px;font-size:14px}
.accordion-content p:last-child{margin-bottom:0}

/* CTA */
.cta-band{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  padding:56px 44px;
  background-image:linear-gradient(160deg,rgba(6,10,20,.86),rgba(6,10,20,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.cta-band h2{margin-bottom:14px;max-width:22em}
.cta-band p{font-size:15px;max-width:38em;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:rgba(6,10,20,.86);margin-top:40px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-main{font-size:17px}
.footer-desc{font-size:14px;color:var(--text-3);max-width:26em;margin-bottom:18px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(32,227,196,.45);transform:translateY(-2px)}
.footer-col h4{font-size:14px;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:2px}
.footer-col a,.footer-col li{font-size:14px;color:var(--text-3);line-height:32px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line-2);padding-top:22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{font-family:var(--mono)}

/* 响应式 */
@media screen and (max-width:1024px){
  .hero{padding:132px 0 72px}
  .feature-group{grid-template-columns:72px 1fr;gap:24px}
  .feature-group .fg-media{grid-column:2;margin-top:8px}
  .paths-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{margin-top:0;order:-1}
  .scene{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .scene.reverse .scene-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:768px){
  .section{padding:52px 0}
  .grid-container.page-wrap{padding-left:18px;padding-right:18px}
  .dock-outer{padding:0 12px;top:12px}
  .dock{padding:8px 12px;gap:10px}
  .dock-nav{display:none}
  .dock-actions .btn-primary{display:none}
  .menu-btn{display:grid}
  .brand-main{font-size:16px}
  .brand-sub{font-size:10px}
  .brand-mark{width:34px;height:34px}
  .hero{padding:120px 0 56px}
  .hero .hero-sub{font-size:16px}
  .metrics{padding:24px 0}
  .metrics-row{grid-template-columns:1fr 1fr;gap:0}
  .metric{padding:16px 14px;border-right:0}
  .metric:nth-child(odd){border-right:1px solid var(--line-2)}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--line-2)}
  .metric .num{font-size:24px}
  h1{font-size:clamp(26px,7vw,34px)}
  h2{font-size:clamp(22px,5.6vw,28px)}
  .feature-group{grid-template-columns:1fr;gap:16px;padding:26px 0}
  .feature-group .fg-media{grid-column:1}
  .fg-index{width:48px;height:48px;font-size:14px}
  .scene-body h3{font-size:20px}
  .path-small{grid-template-columns:110px 1fr}
  .news-mini{grid-template-columns:110px 1fr}
  .cta-band{padding:36px 22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn{height:46px;padding:0 22px}
}
@media screen and (max-width:480px){
  .hero-pills span{font-size:12px}
  .hero-cta .btn{width:100%}
  .paths-grid,.news-grid{gap:16px}
  .path-small,.news-mini{grid-template-columns:1fr}
  .path-small img,.news-mini img{aspect-ratio:4/3}
  .path-main img,.news-feature img{aspect-ratio:4/3}
  .metrics-row{grid-template-columns:1fr 1fr}
  .news-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg-0:#060A14;
  --bg-1:#0A1120;
  --bg-2:#0E1729;
  --primary:#20E3C4;
  --primary-2:#7BF3DD;
  --accent:#FF7A2F;
  --text-1:#EAF2FF;
  --text-2:#9AA8C0;
  --text-3:#6B7891;
  --ok:#22C55E;
  --warn:#FFB020;
  --err:#FF5A5F;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.6);
  --glow:0 0 0 1px rgba(32,227,196,.35),0 10px 40px -12px rgba(32,227,196,.45);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --font:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  --mono:ui-monospace,'JetBrains Mono','SFMono-Regular',Menlo,monospace;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;}
body{
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% 6%,rgba(32,227,196,.06),transparent 65%),
    radial-gradient(760px 460px at 88% 34%,rgba(32,227,196,.05),transparent 68%),
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
a{color:var(--primary-2);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;border-radius:var(--r-m);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);}
button{font-family:var(--font);}
input,button,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(32,227,196,.28);color:#fff;}
.page-wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-container.page-wrap{max-width:1200px;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;position:relative;z-index:1;}
.section-tight{padding:56px 0;}
@media (max-width:1024px){.section{padding:64px 0;}}
@media (max-width:768px){
  .section{padding:48px 0;}
  .page-wrap,.grid-container.page-wrap{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-outer{
  position:sticky;
  top:0;
  z-index:60;
  padding:16px 16px 0;
  background:transparent;
}
.dock{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 16px 10px 18px;
  border-radius:999px;
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
  position:relative;
}
.dock::after{
  content:"";
  position:absolute;
  left:24px;right:24px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);
  pointer-events:none;
}
.dock.is-scrolled{
  background:linear-gradient(160deg,rgba(10,17,32,.92),rgba(10,17,32,.86));
  border-color:rgba(32,227,196,.22);
  box-shadow:0 16px 40px -18px rgba(0,0,0,.85);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(32,227,196,.08);
  border:1px solid rgba(32,227,196,.34);
  flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--primary);letter-spacing:.08em;}
.dock-nav{
  display:flex;align-items:center;gap:6px;
  margin-left:8px;margin-right:auto;flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  padding:8px 14px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);background:rgba(32,227,196,.10);}
.nav-link.is-active::before{
  content:"";
  position:absolute;left:50%;top:-2px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 8px rgba(32,227,196,.9);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(32,227,196,.45);background:rgba(32,227,196,.08);}
.icon-btn:active{transform:translateY(1px);}
.menu-btn{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,rgba(32,227,196,.95),rgba(123,243,221,.85));
  color:#04140F;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(32,227,196,.5),0 16px 44px -12px rgba(32,227,196,.6);color:#04140F;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-1);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(32,227,196,.45);color:var(--primary-2);transform:translateY(-2px);}
.btn-block{width:100%;}
.dock-search{
  max-width:1120px;margin:10px auto 0;
  display:none;
}
.dock-search.is-open{display:block;animation:fadeDown .24s ease;}
.dock-search form{
  display:flex;gap:10px;
  padding:10px;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(10,17,32,.94),rgba(10,17,32,.86));
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.dock-search input{
  flex:1;height:48px;padding:0 16px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  color:var(--text-1);
}
.dock-search input::placeholder{color:var(--text-3);}
.dock-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15);}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(4,8,16,.62);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(86vw,360px);
  padding:22px 20px 32px;
  background:linear-gradient(180deg,rgba(10,17,32,.98),rgba(6,10,20,.98));
  border-left:1px solid var(--line);
  box-shadow:-20px 0 60px rgba(0,0,0,.6);
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-nav a{
  display:flex;align-items:center;min-height:56px;
  padding:0 14px;border-radius:14px;
  color:var(--text-2);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.drawer-nav a.is-active{color:var(--primary);background:rgba(32,227,196,.10);border-color:rgba(32,227,196,.28);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:18px;border-top:1px solid var(--line-soft);}
@media (max-width:1024px){
  .dock-nav .nav-link{padding:8px 11px;font-size:13px;}
}
@media (max-width:768px){
  .dock{border-radius:20px;padding:10px 12px;gap:10px;}
  .dock-nav{display:none;}
  .menu-btn{display:inline-flex;}
  .dock-actions .btn-primary{display:none;}
}
@media (max-width:480px){
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  z-index:1;
  padding:44px 0 8px;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-2);
  margin-bottom:22px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);}
.crumb .current{color:var(--text-3);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(32,227,196,.4);
  color:var(--primary);
  background:rgba(32,227,196,.08);
}
.badge-accent{border-color:rgba(255,122,47,.45);color:var(--accent);background:rgba(255,122,47,.1);}
.article-title{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.2;
  letter-spacing:-.02em;
  margin:16px 0 18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13px;color:var(--text-2);
  font-family:var(--mono);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary);font-size:12px;}
.article-cover{
  margin-top:28px;
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/9;
}
.article-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.article-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.18),rgba(6,10,20,.55));
  pointer-events:none;
}
.article-cover figcaption{
  position:absolute;left:20px;bottom:16px;
  font-size:12px;color:rgba(234,242,255,.78);
  z-index:2;
}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:24px;
  align-items:start;
  padding:48px 0 8px;
  position:relative;z-index:1;
}
.article-body{
  min-width:0;
  padding:32px 34px;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(14,23,41,.92),rgba(10,17,32,.86));
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;padding-top:36px;}
}

/* 正文排版（承接 CMS 富文本） */
.prose{font-size:17px;line-height:1.95;color:#DCE6F6;}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 1.2em;}
.prose h2{
  position:relative;
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.35;
  margin:48px 0 16px;
  padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),rgba(32,227,196,.25));
}
.prose h3{font-size:20px;margin:34px 0 12px;color:var(--text-1);}
.prose h4{font-size:17px;margin:26px 0 10px;color:var(--primary-2);}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--primary-2);}
.prose strong{color:#fff;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em;}
.prose li{margin:.4em 0;}
.prose ul{list-style:none;padding-left:1.2em;}
.prose ul > li{position:relative;}
.prose ul > li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 6px rgba(32,227,196,.7);
}
.prose ol{list-style:none;counter-reset:item;padding-left:1.8em;}
.prose ol > li{position:relative;counter-increment:item;}
.prose ol > li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:-1.8em;top:.1em;
  font-family:var(--mono);font-size:13px;color:var(--primary);
}
.prose blockquote{
  margin:1.4em 0;padding:20px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-m) var(--r-m) 0;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{
  width:100%;height:auto;border-radius:var(--r-m);
  border:1px solid var(--line);margin:1.4em 0 10px;
}
.prose figure{margin:1.4em 0;}
.prose figcaption{
  font-size:12px;color:var(--text-3);text-align:center;margin-top:8px;
}
.prose code{
  font-family:var(--mono);font-size:.92em;
  padding:2px 6px;border-radius:6px;
  background:rgba(6,10,20,.9);color:var(--primary);
  border:1px solid var(--line-soft);
}
.prose pre{
  font-family:var(--mono);font-size:13.5px;
  padding:18px;border-radius:var(--r-m);overflow-x:auto;
  background:rgba(6,10,20,.9);border:1px solid var(--line);
}
.prose pre code{background:none;border:none;padding:0;}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line-soft);text-align:left;}
.prose th{background:rgba(255,255,255,.05);color:var(--text-1);font-weight:600;}
.prose tr:last-child td{border-bottom:none;}
.prose hr{border:none;height:1px;background:var(--line-soft);margin:2em 0;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;min-height:260px;text-align:center;
  border-radius:var(--r-m);border:1px dashed var(--line);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--primary);}
.empty-state p{color:var(--text-2);margin:0;}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0;}
.side-card{
  padding:22px;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(14,23,41,.9),rgba(10,17,32,.84));
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.side-title{
  font-size:15px;letter-spacing:.06em;color:var(--text-1);
  display:flex;align-items:center;gap:9px;margin-bottom:16px;
}
.side-title::before{
  content:"";width:4px;height:14px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 8px rgba(32,227,196,.7);
}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.side-item{display:flex;gap:12px;align-items:flex-start;padding-bottom:14px;border-bottom:1px solid var(--line-soft);}
.side-item:last-child{padding-bottom:0;border-bottom:none;}
.side-thumb{
  width:76px;height:56px;flex:0 0 auto;border-radius:var(--r-s);overflow:hidden;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.side-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.side-text{min-width:0;}
.side-text a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;line-height:1.55;color:var(--text-1);font-weight:600;
}
.side-text a:hover{color:var(--primary);}
.side-time{font-family:var(--mono);font-size:12px;color:var(--text-3);margin-top:6px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 12px;border-radius:999px;font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(32,227,196,.4);background:rgba(32,227,196,.08);}
.side-actions{display:flex;flex-direction:column;gap:10px;}
@media (max-width:1024px){
  .sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}
  .side-actions{grid-column:1 / -1;}
}
@media (max-width:600px){
  .sidebar{grid-template-columns:1fr;}
  .article-body{padding:22px 18px;border-radius:var(--r-m);}
}

/* ---------- 翻页 / 相关推荐 ---------- */
.block-title{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;flex-wrap:wrap;
}
.block-title h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.01em;}
.block-title p{margin:8px 0 0;color:var(--text-2);font-size:14.5px;}
.block-title .more-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--primary);
}
.block-title .more-link:hover{gap:12px;}
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pager-card{
  display:flex;flex-direction:column;gap:8px;
  padding:20px 22px;border-radius:var(--r-m);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.pager-card:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4);background:rgba(32,227,196,.06);}
.pager-card span{font-size:12px;color:var(--text-3);letter-spacing:.08em;}
.pager-card strong{font-size:15.5px;color:var(--text-1);font-weight:600;line-height:1.6;}
.pager-card:hover strong{color:var(--primary);}
@media (max-width:640px){.pager{grid-template-columns:1fr;}}

.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.related-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-m);overflow:hidden;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4);box-shadow:var(--shadow-2);}
.related-card .thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s ease;}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:18px;display:flex;flex-direction:column;gap:10px;}
.related-card h3{
  font-size:15.5px;line-height:1.55;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card p{
  font-size:13.5px;color:var(--text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card .meta{display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:12px;color:var(--text-3);}
@media (max-width:900px){.related-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:600px){.related-grid{grid-template-columns:1fr;}}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;z-index:1;
  margin:72px auto 0;
  border-radius:var(--r-l);
  padding:52px 44px;
  background:
    linear-gradient(180deg,rgba(6,10,20,.78),rgba(6,10,20,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border:1px solid rgba(32,227,196,.24);
  box-shadow:var(--shadow-2);
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,34px);line-height:1.3;margin-bottom:12px;}
.cta-band p{color:var(--text-2);margin:0;max-width:56ch;}
.cta-actions{display:flex;gap:14px;justify-content:flex-end;flex-wrap:wrap;}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:34px 22px;margin-top:52px;}
  .cta-actions{justify-content:flex-start;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:88px;
  padding:64px 0 28px;
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,17,32,.6),rgba(6,10,20,.95));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-desc{font-size:13.5px;color:var(--text-2);line-height:1.85;margin:0 0 18px;max-width:34ch;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(32,227,196,.45);background:rgba(32,227,196,.08);}
.footer-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:14px;color:var(--text-1);}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{line-height:32px;}
.footer-col a{font-size:13.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}
.footer-bottom .dot{font-family:var(--mono);}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .site-footer{margin-top:56px;padding-top:44px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .dock-actions .icon-btn{width:36px;height:36px;}
  .article-cover{aspect-ratio:4/3;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A14;
  --bg-1:#0A1120;
  --bg-2:#0E1729;
  --primary:#20E3C4;
  --primary-2:#7BF3DD;
  --accent:#FF7A2F;
  --text-1:#EAF2FF;
  --text-2:#9AA8C0;
  --text-3:#6B7891;
  --ok:#22C55E;
  --warn:#FFB020;
  --err:#FF5A5F;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.6);
  --glow:0 0 0 1px rgba(32,227,196,.35), 0 10px 40px -12px rgba(32,227,196,.45);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  overflow-x:hidden;
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(720px 420px at 12% -6%, rgba(32,227,196,.06), transparent 62%),
    radial-gradient(680px 420px at 92% 22%, rgba(32,227,196,.05), transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, auto, 48px 48px, 48px 48px;
  background-repeat:no-repeat, no-repeat, repeat, repeat;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}

a{color:var(--primary-2);text-decoration:none;background:transparent;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

h1,h2,h3,h4{
  margin:0 0 .6em;
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  color:var(--text-1);
  line-height:1.3;
  letter-spacing:-.01em;
}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.02em;}
h2{font-size:clamp(24px,2.6vw,36px);font-weight:700;}
h3{font-size:clamp(19px,1.5vw,23px);font-weight:700;}
h4{font-size:17px;font-weight:700;}
p{margin:0 0 1em;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border:0;}
strong{color:var(--text-1);}
button{font-family:inherit;}

.page-wrap{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.grid-container.page-wrap{max-width:1200px;}

/* ============ Dock 导航 ============ */
.dock-outer{
  position:sticky;
  top:16px;
  z-index:80;
  padding:0 20px;
  margin-bottom:-96px;
}
.dock{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 18px;
  border-radius:999px;
  background:var(--glass);
  background-color:rgba(10,17,32,.62);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1), inset 0 1px 0 rgba(255,255,255,.18);
  transition:background-color .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.dock.is-scrolled{
  background-color:rgba(10,17,32,.92);
  border-color:rgba(32,227,196,.28);
  box-shadow:var(--shadow-2), inset 0 1px 0 rgba(255,255,255,.18);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:36px;height:36px;
  flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  border:1px solid rgba(32,227,196,.45);
  background:rgba(32,227,196,.08);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-main{font-size:18px;font-weight:700;letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--primary);letter-spacing:.08em;}

.dock-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 14px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .22s ease, background-color .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);background:rgba(32,227,196,.10);}
.nav-link.is-active::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(32,227,196,.16);
}

.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  cursor:pointer;
  transition:color .22s ease, border-color .22s ease, background-color .22s ease, transform .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(32,227,196,.45);background:rgba(32,227,196,.08);}
.icon-btn:active{transform:translateY(1px);}
.menu-btn{display:none;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease, box-shadow .22s ease, background-color .22s ease, border-color .22s ease, color .22s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}
.btn-primary{
  background:linear-gradient(180deg, var(--primary), #14c4a8);
  color:#04231d;
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#04231d;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(32,227,196,.5), 0 16px 46px -12px rgba(32,227,196,.65);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--glass);
  border-color:rgba(255,255,255,.18);
  color:var(--text-1);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{color:var(--primary-2);border-color:rgba(32,227,196,.5);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}

.dock-search{
  max-width:720px;
  margin:12px auto 0;
  padding:0;
  max-height:0;
  overflow:hidden;
  opacity:0;
  transition:max-height .3s ease, opacity .3s ease, padding .3s ease;
}
.dock-search.is-open{max-height:140px;opacity:1;padding:0;}
.dock-search form{
  display:flex;
  gap:10px;
  padding:12px;
  border-radius:var(--r-m);
  background:var(--glass);
  background-color:rgba(10,17,32,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.dock-search input{
  flex:1 1 auto;
  height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(6,10,20,.75);
  color:var(--text-1);
  font-size:15px;
}
.dock-search input::placeholder{color:var(--text-3);}
.dock-search input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(32,227,196,.15);
  outline:none;
}

/* 移动抽屉 */
.dock-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
}
.dock-drawer.is-open{display:block;}
.drawer-mask{
  position:absolute;
  inset:0;
  background:rgba(4,7,14,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(340px,86vw);
  height:100%;
  padding:22px 20px 32px;
  background:rgba(10,17,32,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  box-shadow:var(--shadow-2);
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  animation:drawerIn .28s ease;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:0 12px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15.5px;
  border-bottom:1px solid var(--line-soft);
}
.drawer-link:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.drawer-link.is-active{color:var(--primary);background:rgba(32,227,196,.10);}
.drawer-search{display:flex;gap:8px;}
.drawer-search input{
  flex:1 1 auto;
  height:48px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(6,10,20,.75);
  color:var(--text-1);
  font-size:14.5px;
}
.drawer-search input::placeholder{color:var(--text-3);}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15);outline:none;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:150px 0 70px;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg, rgba(6,10,20,.72), rgba(6,10,20,.94)), url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.20);
  border-left-color:transparent;
  border-bottom-color:transparent;
  transform:rotate(24deg);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;}

.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb-sep{color:var(--text-3);}
.crumb-cur{color:var(--text-3);}

.hero-grid{display:flex;align-items:center;gap:48px;}
.hero-copy{flex:1 1 58%;min-width:0;}
.hero-media{flex:0 1 42%;min-width:0;}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-l);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.page-hero h1{margin-bottom:16px;max-width:16em;}
.hero-lead{
  font-size:clamp(15px,1.2vw,17px);
  color:var(--text-2);
  max-width:34em;
  margin-bottom:24px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--primary-2);
  background:rgba(32,227,196,.08);
  border:1px solid rgba(32,227,196,.30);
}
.pill i{font-size:11px;}

/* ============ 通用区块 ============ */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-alt{background:linear-gradient(180deg, rgba(14,23,41,.65), rgba(10,17,32,.35));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}

.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-family:ui-monospace,'JetBrains Mono',monospace;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-lead{font-size:16px;color:var(--text-2);margin-bottom:0;}

/* 左右交替图文 */
.alt-row{
  display:flex;
  align-items:center;
  gap:52px;
  padding:36px 0;
  border-top:1px solid var(--line-soft);
}
.alt-row:first-of-type{border-top:0;padding-top:0;}
.alt-row.is-reverse{flex-direction:row-reverse;}
.alt-media{flex:0 0 46%;min-width:0;}
.alt-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .24s ease, border-color .24s ease;
}
.alt-media img:hover{transform:scale(1.03);border-color:rgba(32,227,196,.4);}
.alt-body{flex:1 1 54%;min-width:0;}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.45);
  color:var(--primary);
  font-family:ui-monospace,'JetBrains Mono',monospace;
  font-size:16px;
  margin-bottom:16px;
}
.alt-body h3{margin-bottom:12px;}
.alt-body p{font-size:15.5px;}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 20px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary-2);
  border-bottom:1px solid rgba(32,227,196,.4);
  padding-bottom:2px;
}
.text-link:hover{color:var(--primary);border-bottom-color:var(--primary);}
.text-link i{font-size:12px;transition:transform .22s ease;}
.text-link:hover i{transform:translateX(3px);}

/* 要点徽章条 */
.badge-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.badge-item{
  padding:26px 24px;
  border-radius:var(--r-m);
  background:rgba(14,23,41,.72);
  border:1px solid var(--line);
  transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
.badge-item:hover{transform:translateY(-4px);border-color:rgba(32,227,196,.4);box-shadow:var(--shadow-1);}
.badge-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(32,227,196,.4);
  background:rgba(32,227,196,.08);
  color:var(--primary);
  margin-bottom:14px;
}
.badge-item h3{font-size:18px;margin-bottom:8px;}
.badge-item p{font-size:14.5px;margin-bottom:0;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-acc{background:transparent;border:0;margin:0;}
.faq-acc .accordion-item{
  background:rgba(14,23,41,.75);
  border:1px solid var(--line-soft);
  border-radius:var(--r-m);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s ease, box-shadow .24s ease;
}
.faq-acc .accordion-item:hover{border-color:rgba(32,227,196,.32);}
.faq-acc .accordion-item.is-active{
  border-color:rgba(32,227,196,.45);
  box-shadow:inset 2px 0 0 var(--primary);
}
.faq-acc .accordion-title{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:16px 58px 16px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  background:transparent;
  border:0;
  position:relative;
  transition:color .22s ease;
}
.faq-acc .accordion-title:hover,
.faq-acc .accordion-title:focus{color:var(--primary-2);background:transparent;}
.faq-acc .accordion-item.is-active .accordion-title{color:var(--primary-2);}
.faq-acc .accordion-title::before{display:none;}
.faq-acc .accordion-title::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--text-2);
  border-bottom:2px solid var(--text-2);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .26s ease, border-color .26s ease;
}
.faq-acc .accordion-item.is-active .accordion-title::after{
  transform:translateY(-30%) rotate(-135deg);
  border-color:var(--primary);
}
.faq-acc .accordion-content{
  padding:0 24px 22px;
  background:transparent;
  border:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* CTA 带 */
.cta-band{padding:72px 0 96px;}
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:48px 52px;
  border-radius:var(--r-l);
  background:var(--glass);
  background-color:rgba(10,17,32,.80);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border:1px solid rgba(32,227,196,.30);
  box-shadow:var(--shadow-2), inset 0 1px 0 rgba(255,255,255,.16);
  position:relative;
  overflow:hidden;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-70px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.22);
  border-top-color:transparent;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{margin-bottom:12px;}
.cta-copy p{margin-bottom:0;font-size:15.5px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;}

/* 页脚 */
.site-footer{
  padding:64px 0 28px;
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg, rgba(10,17,32,.5), rgba(6,10,20,.95));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:34em;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  transition:color .22s ease, border-color .22s ease, background-color .22s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(32,227,196,.45);background:rgba(32,227,196,.08);}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text-1);}
.footer-col ul li{line-height:32px;}
.footer-col ul li a{font-size:14px;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:22px;
  border-top:1px solid var(--line-soft);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3);}
.footer-tech{font-family:ui-monospace,'JetBrains Mono',monospace;letter-spacing:.02em;}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .hero-grid{flex-direction:column;align-items:flex-start;gap:32px;}
  .hero-copy,.hero-media{flex:1 1 auto;width:100%;}
  .alt-row{gap:32px;}
  .alt-media{flex:0 0 44%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:40px;}
}
@media screen and (max-width:768px){
  .dock-outer{padding:0 14px;top:10px;margin-bottom:-84px;}
  .dock{padding:8px 12px;gap:10px;}
  .dock-nav{display:none;}
  .menu-btn{display:inline-flex;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;}
  .page-hero{padding:126px 0 52px;}
  .page-hero::after{display:none;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .alt-row{flex-direction:column;gap:22px;padding:28px 0;}
  .alt-row.is-reverse{flex-direction:column;}
  .alt-media,.alt-body{flex:1 1 auto;width:100%;}
  .badge-strip{grid-template-columns:1fr;gap:16px;}
  .cta-band{padding:48px 0 64px;}
  .cta-card{padding:32px 24px;gap:26px;}
  .btn-lg{height:50px;padding:0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .page-wrap{padding-left:18px;padding-right:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:480px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-media img{aspect-ratio:4/3;}
  .alt-media img{aspect-ratio:4/3;}
  .footer-grid{grid-template-columns:1fr;}
  .dock-search form{flex-direction:column;}
  .dock-search form .btn{width:100%;}
  .cta-actions{flex-direction:column;width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A14;
  --bg-1:#0A1120;
  --bg-2:#0E1729;
  --primary:#20E3C4;
  --primary-2:#7BF3DD;
  --accent:#FF7A2F;
  --text-1:#EAF2FF;
  --text-2:#9AA8C0;
  --text-3:#6B7891;
  --ok:#22C55E;
  --warn:#FFB020;
  --err:#FF5A5F;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.6);
  --glow:0 0 0 1px rgba(32,227,196,.35), 0 10px 40px -12px rgba(32,227,196,.45);
  --mono:ui-monospace,'JetBrains Mono','SFMono-Regular',Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 10% -6%, rgba(32,227,196,.06), transparent 62%),
    radial-gradient(760px 520px at 92% 6%, rgba(255,122,47,.05), transparent 66%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, auto, 100% 42px, 42px 100%;
  background-repeat:no-repeat, no-repeat, repeat, repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);font-weight:700;line-height:1.3;letter-spacing:-.01em}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.2;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,36px)}
h3{font-size:clamp(19px,1.6vw,23px)}
h4{font-size:15px}
p{margin:0 0 1em;color:var(--text-2)}
p:last-child{margin-bottom:0}
a{color:var(--primary);text-decoration:none;transition:color .22s ease, border-color .22s ease, background-color .22s ease, transform .22s ease, box-shadow .22s ease}
a:hover{color:var(--primary-2)}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.grid-container.page-wrap{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
main{display:block}

/* ============ Dock 导航 ============ */
.dock-outer{position:sticky;top:0;z-index:60;padding:16px 16px 0}
.dock{
  position:relative;
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 18px;
  border-radius:999px;
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background-color .28s ease, border-color .28s ease;
}
.dock::after{
  content:'';position:absolute;left:24px;right:24px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
  border-radius:999px;
}
.dock.is-scrolled{background-color:rgba(10,17,32,.9);border-color:rgba(255,255,255,.16)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);flex-shrink:0}
.brand:hover{color:var(--text-1)}
.brand-mark{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:11px;border:1px solid rgba(32,227,196,.4);background:rgba(32,227,196,.08);flex-shrink:0}
.brand-mark svg{width:21px;height:21px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:18px;font-weight:700;letter-spacing:-.01em}
.brand-sub{font-size:12px;color:var(--primary);letter-spacing:.08em;margin-top:2px}
.dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{position:relative;padding:9px 14px;border-radius:999px;font-size:14px;color:var(--text-2);white-space:nowrap}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);background:rgba(32,227,196,.09)}
.nav-link.is-active::before{content:'';position:absolute;left:50%;top:4px;width:4px;height:4px;margin-left:-2px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(32,227,196,.9)}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:color .22s ease,border-color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(32,227,196,.45);transform:translateY(-1px)}
.menu-btn{display:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease,background-color .22s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--primary),#12c9ad);color:#04140f;box-shadow:var(--glow)}
.btn-primary:hover{color:#04140f;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(32,227,196,.5),0 16px 40px -12px rgba(32,227,196,.6)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border-color:var(--line);color:var(--text-1);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.btn-ghost:hover{color:var(--primary);border-color:rgba(32,227,196,.5);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.dock-search{max-width:1120px;margin:12px auto 0;display:none}
.dock-search.is-open{display:block}
.dock-search form{
  display:flex;gap:10px;padding:12px;border-radius:var(--r-m);
  background:rgba(10,17,32,.94);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.dock-search input[type=search]{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  color:var(--text-1);
}
.dock-search input[type=search]::placeholder{color:var(--text-3)}
.dock-search input[type=search]:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15)}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:90;pointer-events:none}
.drawer-mask{position:absolute;inset:0;background:rgba(3,6,13,.62);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;transition:opacity .28s ease}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:84%;max-width:360px;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.4,.1,.2,1);
  background:rgba(8,14,26,.97);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line-soft)}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 4px;color:var(--text-1);font-size:16px;
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a i{color:var(--text-3);font-size:12px}
.drawer-nav a.is-active{color:var(--primary)}
.drawer-nav a.is-active i{color:var(--primary)}
.drawer-foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-search{display:flex;gap:8px}
.drawer-search input{flex:1;height:48px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);color:var(--text-1);padding:0 14px}
.drawer-search input::placeholder{color:var(--text-3)}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:20px 0 14px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .current{color:var(--text-3)}

/* ============ 简版 Hero ============ */
.page-hero{
  position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background-image:linear-gradient(180deg, rgba(6,10,20,.74), rgba(6,10,20,.94)), url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-2);
}
.page-hero::before{
  content:'';position:absolute;inset:-40% -10% auto auto;width:420px;height:420px;
  background:radial-gradient(circle, rgba(32,227,196,.16), transparent 68%);pointer-events:none;
}
.page-hero-inner{padding:42px 28px 46px;position:relative}
.hero-copy h1{margin-bottom:14px}
.hero-copy .lead{font-size:17px;color:var(--text-2);max-width:34em;margin-bottom:22px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-m);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.hero-media .media-tag{
  position:absolute;left:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:13px;color:var(--text-1);
  background:rgba(8,14,26,.78);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.hero-media .media-tag i{color:var(--primary)}

/* ============ 通用区块 ============ */
.sec{padding:78px 0 0}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-tag{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.14em;color:var(--primary);margin-bottom:14px;text-transform:uppercase;
}
.sec-tag::before{content:'';width:22px;height:2px;background:var(--primary);border-radius:2px;display:inline-block}
.sec-head h2{margin-bottom:12px}
.sec-sub{font-size:16px;color:var(--text-2);margin:0}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600}
.badge-primary{background:rgba(32,227,196,.12);color:var(--primary-2);border:1px solid rgba(32,227,196,.35)}
.badge-soft{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}
.badge-accent{background:rgba(255,122,47,.14);color:#FFB58C;border:1px solid rgba(255,122,47,.4)}

/* ============ 对照清单 ============ */
.compare-list{border-top:1px solid var(--line-soft)}
.compare-row{
  display:grid;grid-template-columns:minmax(220px,300px) 1fr;gap:38px;
  padding:30px 0;border-bottom:1px solid var(--line-soft);
  transition:background-color .24s ease;
}
.compare-row:hover{background:linear-gradient(90deg, rgba(32,227,196,.05), transparent 65%)}
.compare-key{display:flex;gap:16px;align-items:flex-start}
.compare-key .num{
  font-family:var(--mono);font-size:13px;color:var(--primary);
  border:1px solid rgba(32,227,196,.4);border-radius:999px;
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  background:rgba(32,227,196,.06);
}
.compare-key h3{font-size:20px;line-height:1.4;padding-top:5px}
.compare-val p{color:var(--text-2);margin-bottom:12px}
.dot-list{display:grid;gap:8px}
.dot-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2)}
.dot-list li::before{content:'';position:absolute;left:0;top:.72em;width:12px;height:2px;background:var(--primary);border-radius:2px}

/* ============ 参数卡阵列 ============ */
.param-sec{padding-top:84px}
.param-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.param-card{
  border-radius:var(--r-l);padding:30px 28px;
  background:linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.015));
  border:1px solid var(--line);
  transition:border-color .24s ease, transform .24s ease;
}
.param-card:hover{border-color:rgba(32,227,196,.4);transform:translateY(-4px)}
.param-card.is-accent{border-color:rgba(32,227,196,.3)}
.param-head{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.param-head h3{font-size:20px}
.param-rows{display:flex;flex-direction:column}
.param-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.09);
}
.param-row:last-child{border-bottom:none}
.param-row dt{font-size:14px;color:var(--text-2);font-weight:400}
.param-row dd{margin:0;font-family:var(--mono);font-size:14.5px;color:var(--text-1);text-align:right}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split.is-reverse{grid-template-columns:.95fr 1.05fr}
.split.is-reverse .split-media{order:2}
.split.is-reverse .split-body{order:1}
.split-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-m);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .26s ease, filter .26s ease;
}
.split-media img:hover{transform:scale(1.02);filter:brightness(1.08)}
.split-body h3{margin-bottom:14px}
.split-body p{color:var(--text-2)}
.split-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.plain-list{display:grid;gap:10px;margin-top:16px}
.plain-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2)}
.plain-list li i{position:absolute;left:0;top:.35em;color:var(--primary);font-size:12px}

/* ============ 自检清单 ============ */
.check-panel{
  border-radius:var(--r-l);padding:32px 30px;
  background:rgba(10,17,32,.72);
  border:1px solid var(--line);
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;margin-top:22px}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r-m);
  background:linear-gradient(160deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
  border:1px solid var(--line-soft);
  transition:border-color .24s ease, transform .24s ease;
}
.check-item:hover{border-color:rgba(32,227,196,.38);transform:translateY(-3px)}
.check-item i{color:var(--primary);margin-top:.35em;font-size:14px}
.check-item strong{display:block;font-size:15.5px;color:var(--text-1);margin-bottom:4px;font-weight:600}
.check-item span{font-size:14px;color:var(--text-2);line-height:1.7}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px}
.accordion.faq-list{background:transparent;border:none;margin:0}
.faq-list .accordion-item{
  background:rgba(10,17,32,.85);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .24s ease;
}
.faq-list .accordion-item:hover{border-color:rgba(32,227,196,.3)}
.faq-list .accordion-title{
  display:block;position:relative;
  padding:17px 56px 17px 20px;
  min-height:56px;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  background:transparent;border:none;
  transition:color .22s ease;
}
.faq-list .accordion-title:hover{color:var(--primary)}
.faq-list .accordion-title::before{
  content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:12px;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--text-3);transition:transform .26s ease,color .26s ease;
}
.faq-list .accordion-item.is-active .accordion-title{color:var(--primary)}
.faq-list .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg);color:var(--primary)}
.faq-list .accordion-item.is-active .accordion-title::after{
  content:'';position:absolute;left:0;top:12px;bottom:12px;width:2px;border-radius:2px;background:var(--primary);
}
.faq-list .accordion-content{
  padding:0 20px 20px;border:none;background:transparent;color:var(--text-2);
  border-top:1px solid var(--line-soft);
}
.faq-list .accordion-content p{padding-top:14px;font-size:15.5px}

/* ============ CTA 带 ============ */
.cta-sec{padding-top:88px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  background:linear-gradient(160deg, rgba(32,227,196,.12), rgba(255,255,255,.03) 55%, rgba(255,122,47,.06));
  border:1px solid rgba(32,227,196,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--glow);
  padding:40px 34px;
}
.cta-band::after{
  content:'';position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle, rgba(32,227,196,.18), transparent 70%);pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center}
.cta-inner h2{margin-bottom:10px}
.cta-inner p{color:var(--text-2);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line-soft);
  background:rgba(6,10,20,.72);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-2);margin:0 0 18px;max-width:34em}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(32,227,196,.45);transform:translateY(-2px)}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text-1)}
.footer-col ul li a{display:inline-block;line-height:32px;font-size:14px;color:var(--text-2)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:42px;border-top:1px solid var(--line-soft);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .split,.split.is-reverse{grid-template-columns:1fr;gap:28px}
  .split.is-reverse .split-media{order:1}
  .split.is-reverse .split-body{order:2}
  .compare-row{grid-template-columns:1fr;gap:16px}
  .cta-inner{grid-template-columns:1fr;gap:20px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .param-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .dock-outer{padding:12px 12px 0}
  .dock{border-radius:20px;padding:10px 14px;gap:10px}
  .dock::after{left:18px;right:18px}
  .dock-nav{display:none}
  .dock-actions .btn{display:none}
  #searchToggle{display:none}
  .menu-btn{display:inline-flex}
  .brand-main{font-size:16px}
  .brand-sub{font-size:11px}
  .page-hero-inner{padding:30px 20px 34px}
  .hero-copy .lead{font-size:16px}
  .hero-btns{gap:10px}
  .hero-btns .btn{flex:1 1 100%}
  .sec{padding:52px 0 0}
  .sec-head{margin-bottom:26px}
  .cta-sec{padding-top:56px}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{flex:1 1 100%}
  .site-footer{margin-top:64px;padding-top:42px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .compare-row{padding:24px 0}
  .param-card{padding:24px 20px}
  .check-panel{padding:24px 20px}
}
@media (max-width:520px){
  h1{font-size:28px}
  h2{font-size:23px}
  .crumb{font-size:12.5px}
  .page-hero{border-radius:var(--r-m)}
  .hero-media img{aspect-ratio:4/3}
  .split-media img{aspect-ratio:4/3}
  .hero-badges .badge{font-size:12px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#060A14;
  --bg-1:#0A1120;
  --bg-2:#0E1729;
  --primary:#20E3C4;
  --primary-2:#7BF3DD;
  --accent:#FF7A2F;
  --text-1:#EAF2FF;
  --text-2:#9AA8C0;
  --text-3:#6B7891;
  --ok:#22C55E;
  --warn:#FFB020;
  --err:#FF5A5F;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --glass-bg:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-s:10px;
  --r-m:16px;
  --r-l:22px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 24px 60px -20px rgba(0,0,0,.6);
  --glow:0 0 0 1px rgba(32,227,196,.35),0 10px 40px -12px rgba(32,227,196,.45);
  --mono:ui-monospace,'JetBrains Mono','SFMono-Regular',Menlo,Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','HarmonyOS Sans','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px),
    radial-gradient(900px 520px at 8% -6%, rgba(32,227,196,.07), transparent 62%),
    radial-gradient(760px 460px at 96% 12%, rgba(255,122,47,.05), transparent 64%);
  background-size:64px 64px,64px 64px,100% 100%,100% 100%;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);
  text-underline-offset:3px}
a:hover{color:var(--primary-2)}
p{margin:0 0 1em;color:var(--text-2)}
p:last-child{margin-bottom:0}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);font-weight:700;letter-spacing:-.02em;line-height:1.3}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(32,227,196,.28);color:#fff}

.grid-container.page-wrap{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:88px 0}
.section--tight{padding:56px 0}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  text-decoration:none;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),
             background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#20E3C4,#12C9AC);
  color:#04211B;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#04211B;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(32,227,196,.5),0 16px 42px -12px rgba(32,227,196,.62);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass-bg);
  border-color:rgba(255,255,255,.16);
  color:var(--text-1);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{
  color:var(--primary-2);
  border-color:rgba(32,227,196,.45);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:500;letter-spacing:.02em;
  color:var(--primary-2);
  border:1px solid rgba(32,227,196,.32);
  background:rgba(32,227,196,.08);
}
.tag--muted{color:var(--text-2);border-color:var(--line);background:rgba(255,255,255,.03)}
.tag--accent{color:#FFD3B8;border-color:rgba(255,122,47,.4);background:rgba(255,122,47,.12)}

.section-head{max-width:760px;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-block;margin-bottom:14px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;
}
.section-head h2{font-size:clamp(24px,2.6vw,36px);margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text-2)}

/* ============ 浮动 Dock 导航 ============ */
.dock-outer{
  position:sticky;top:0;z-index:90;
  padding:14px 16px 0;
}
.dock{
  position:relative;
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 18px;border-radius:999px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-1), inset 0 1px 0 rgba(255,255,255,.18);
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.dock.is-scrolled{
  background:linear-gradient(160deg,rgba(12,20,36,.94),rgba(10,17,32,.90));
  border-color:rgba(32,227,196,.24);
  box-shadow:0 14px 40px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.12);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{color:inherit}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  border-radius:11px;
  border:1px solid rgba(32,227,196,.42);
  background:rgba(32,227,196,.08);
}
.brand-mark svg{width:21px;height:21px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-main{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:-.01em}
.brand-sub{font-size:11.5px;font-weight:600;color:var(--primary);letter-spacing:.08em;margin-top:2px}

.dock-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.nav-link.is-active{
  color:var(--primary);
  background:rgba(32,227,196,.10);
  padding-left:20px;
}
.nav-link.is-active::before{
  content:"";position:absolute;left:9px;top:50%;
  width:5px;height:5px;border-radius:50%;
  background:var(--primary);
  transform:translateY(-50%);
  box-shadow:0 0 8px rgba(32,227,196,.9);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:14px;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(32,227,196,.42);background:rgba(32,227,196,.08)}
.menu-btn{display:none}

.dock-search{
  max-width:1120px;margin:10px auto 0;
  display:none;
  padding:14px;
  border-radius:var(--r-l);
  background:linear-gradient(160deg,rgba(12,20,36,.96),rgba(10,17,32,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.dock-search.is-open{display:block}
.dock-search form{display:flex;gap:10px;margin:0}
.dock-search input[type=search]{
  flex:1 1 auto;height:48px;padding:0 16px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  color:var(--text-1);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.dock-search input[type=search]::placeholder{color:var(--text-3)}
.dock-search input[type=search]:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(32,227,196,.15);
}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;
  visibility:hidden;opacity:0;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer.is-open{visibility:visible;opacity:1}
.drawer-mask{
  position:absolute;inset:0;
  background:rgba(3,6,12,.68);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(330px,86vw);
  padding:24px 20px 32px;
  display:flex;flex-direction:column;
  background:rgba(8,14,26,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);cursor:pointer;display:grid;place-items:center;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(32,227,196,.42)}
.drawer-nav{display:flex;flex-direction:column;margin:0 0 22px}
.drawer-nav a{
  display:flex;align-items:center;line-height:56px;height:56px;
  padding:0 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.is-active{color:var(--primary)}
.drawer-nav a:last-child{border-bottom:0}
.drawer-form{display:flex;gap:10px;margin:0 0 20px}
.drawer-form input{
  flex:1;height:48px;padding:0 14px;border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);color:var(--text-1);font-size:15px;
}
.drawer-form input::placeholder{color:var(--text-3)}
.drawer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(32,227,196,.15)}
.drawer-cta{width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  padding:56px 0 62px;
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(180deg,rgba(6,10,20,.80),rgba(6,10,20,.95)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";
  position:absolute;right:-90px;bottom:-120px;width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.20);
  border-left-color:transparent;
  border-top-color:transparent;
  transform:rotate(-28deg);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb em{font-style:normal;color:var(--text-3)}

.hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.24;
  margin-bottom:16px;
}
.hero h1 .hl{color:var(--primary)}
.hero-lead{
  font-size:16.5px;color:var(--text-2);
  max-width:600px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-media{margin-top:34px}
.hero-figure{
  margin:0;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  position:relative;
  background:var(--bg-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.hero-figure:hover img{transform:scale(1.03)}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.10),rgba(6,10,20,.55));
  pointer-events:none;
}
.hero-figure figcaption{
  position:absolute;left:16px;right:16px;bottom:14px;
  font-size:13px;color:var(--text-2);z-index:2;
}

/* ============ 指标条 ============ */
.metrics-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-l);
  border:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-1),rgba(10,17,32,.6));
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.metric{
  padding:28px 18px;text-align:center;
  border-right:1px solid var(--line-soft);
}
.metric:last-child{border-right:0}
.metric-num{
  display:block;
  font-family:var(--mono);
  font-size:clamp(22px,2.4vw,32px);
  font-weight:700;color:var(--primary);
  letter-spacing:-.01em;line-height:1.2;
}
.metric-label{display:block;margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.6}

/* ============ 时间轴 + 目录 ============ */
.tl-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;align-items:start}
.timeline{position:relative}
.tl-item{
  position:relative;
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:22px;
  padding-bottom:38px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;left:31px;top:66px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(32,227,196,.45),rgba(32,227,196,.04));
}
.tl-item:last-child::before{display:none}
.tl-node{
  width:64px;height:64px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.42);
  background:radial-gradient(circle at 30% 25%,rgba(32,227,196,.16),rgba(32,227,196,.04));
  font-family:var(--mono);
  font-size:20px;font-weight:700;color:var(--primary);
  box-shadow:0 0 0 6px rgba(32,227,196,.05);
}
.tl-body{
  padding:6px 0 0;
}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{font-size:15.5px;line-height:1.85;margin-bottom:14px}
.tl-points{margin-top:12px}
.tl-points li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:var(--text-2);line-height:2;
}
.tl-points li::before{
  content:"";position:absolute;left:0;top:14px;
  width:10px;height:2px;border-radius:2px;background:var(--primary);
}
.tl-figure{
  margin:16px 0 0;
  border-radius:var(--r-m);
  overflow:hidden;
  border:1px solid var(--line);
}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.tl-figure:hover img{transform:scale(1.03)}

.toc-card{
  position:sticky;top:100px;
  padding:24px;
  border-radius:var(--r-l);
  background:var(--glass-bg);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-1), inset 0 1px 0 rgba(255,255,255,.14);
}
.toc-card h3{
  font-size:14px;letter-spacing:.1em;color:var(--primary);
  font-family:var(--mono);font-weight:600;
  margin-bottom:16px;
}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);line-height:1.5;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.toc-list a span{font-family:var(--mono);font-size:12.5px;color:var(--text-3)}
.toc-divider{height:1px;background:var(--line-soft);margin:18px 0}
.toc-note{font-size:13px;color:var(--text-3);line-height:1.75;margin-bottom:16px}
.toc-card .btn{width:100%}

/* ============ 图文展示区 ============ */
.showcase{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
.showcase figure{margin:0;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.showcase figure img{width:100%;object-fit:cover;transition:transform .4s var(--ease)}
.showcase figure:hover img{transform:scale(1.03)}
.showcase-main img{aspect-ratio:16/9}
.showcase-side{display:grid;grid-template-rows:auto 1fr;gap:24px}
.showcase-side figure img{aspect-ratio:16/9}
.showcase-note{
  padding:22px;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(14,23,41,.9),rgba(10,17,32,.7));
}
.showcase-note h4{font-size:16px;margin-bottom:10px}
.showcase-note p{font-size:14px;line-height:1.8}

/* ============ 参数卡阵列（两列） ============ */
.param-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.param-card{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;
  padding:24px;
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(14,23,41,.86),rgba(10,17,32,.6));
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.param-card:hover{
  border-color:rgba(32,227,196,.4);
  transform:translateY(-4px);
  box-shadow:0 18px 44px -22px rgba(0,0,0,.75);
}
.param-key{
  font-family:var(--mono);
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);
  padding-top:4px;
  min-width:82px;
}
.param-val{font-size:15px;color:var(--text-2);line-height:1.85;margin:0}
.param-val strong{display:block;color:var(--text-1);font-size:16.5px;font-weight:600;margin-bottom:6px}

/* ============ FAQ ============ */
.faq-list{max-width:860px}
.faq-item{
  border-radius:var(--r-m);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(14,23,41,.86),rgba(10,17,32,.62));
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(32,227,196,.4)}
.faq-q{
  position:relative;
  width:100%;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px 16px 22px;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;width:2px;
  border-radius:0 2px 2px 0;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .26s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-q .faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .faq-icon::before{width:12px;height:2px}
.faq-q .faq-icon::after{width:2px;height:12px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .34s var(--ease),opacity .28s var(--ease);
}
.faq-item.is-open .faq-a{max-height:460px;opacity:1}
.faq-a-inner{
  padding:0 22px 20px;
  border-top:1px solid var(--line-soft);
  margin-top:0;
  padding-top:16px;
}
.faq-a-inner p{font-size:15px;line-height:1.9;color:var(--text-2)}

/* ============ CTA 带 ============ */
.cta-band{padding:0 0 88px}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 44px;
  border-radius:var(--r-l);
  background:var(--glass-bg);
  border:1px solid rgba(32,227,196,.26);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--glow), inset 0 1px 0 rgba(255,255,255,.16);
  position:relative;
  overflow:hidden;
}
.cta-inner::after{
  content:"";
  position:absolute;right:-70px;top:-90px;width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(32,227,196,.20);
  border-right-color:transparent;
  border-bottom-color:transparent;
  transform:rotate(20deg);
  pointer-events:none;
}
.cta-inner h2{font-size:clamp(22px,2.2vw,30px);margin-bottom:10px}
.cta-inner p{max-width:560px;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(180deg,rgba(10,17,32,.9),rgba(6,10,20,.98));
  border-top:1px solid var(--line-soft);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px 32px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{
  font-size:14px;color:var(--text-3);line-height:1.85;
  max-width:340px;margin-bottom:20px;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);font-size:14px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{color:var(--primary);border-color:rgba(32,227,196,.45);transform:translateY(-2px)}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--text-1);
  margin-bottom:16px;letter-spacing:0;
}
.footer-col li{line-height:32px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-3)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:64px 0}
  .tl-wrap{grid-template-columns:minmax(0,1fr);gap:36px}
  .toc-card{position:static;top:auto}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
  .showcase{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .section-head{margin-bottom:32px}
  .dock-nav{display:none}
  .menu-btn{display:grid}
  .dock{padding:9px 12px 9px 14px;gap:10px}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px}
  .brand-mark svg{width:19px;height:19px}
  .brand-main{font-size:16px}
  .brand-sub{font-size:10.5px}
  .dock-actions .btn-sm{padding:0 14px;font-size:13px;height:36px}
  .hero{padding:40px 0 48px}
  .hero-media{margin-top:26px}
  .metrics-bar{grid-template-columns:repeat(2,1fr)}
  .metric{padding:22px 14px}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--line-soft)}
  .tl-item{grid-template-columns:52px minmax(0,1fr);gap:16px;padding-bottom:30px}
  .tl-node{width:52px;height:52px;font-size:17px}
  .tl-item::before{left:25px;top:54px}
  .tl-body h3{font-size:18px}
  .param-grid{grid-template-columns:1fr}
  .toc-list{grid-template-columns:1fr}
  .cta-inner{padding:30px 22px}
  .cta-band{padding:0 0 56px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .grid-container.page-wrap{padding-left:16px;padding-right:16px}
  .hero h1{font-size:26px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .showcase figure img,
  .showcase-main img,
  .showcase-side figure img,
  .hero-figure img,
  .tl-figure img{aspect-ratio:4/3}
  .param-card{grid-template-columns:1fr;gap:8px}
  .param-key{min-width:0;padding-top:0}
}