/* roulang page: index */
:root{
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --surface-alt:#EEF3FA;
  --primary:#1B65D6;
  --primary-strong:#14509F;
  --primary-soft:#E7F0FD;
  --accent:#FF7A45;
  --accent-soft:#FFF0E9;
  --support:#12B5A8;
  --ink:#0E1B2C;
  --ink-2:#52637A;
  --ink-3:#8A9AAE;
  --line:#E3EAF4;
  --radius-sm:10px;
  --radius:12px;
  --radius-lg:16px;
  --shadow:0 1px 2px rgba(14,27,44,.04), 0 10px 28px -12px rgba(14,27,44,.10);
  --shadow-hover:0 2px 4px rgba(14,27,44,.06), 0 18px 36px -14px rgba(14,27,44,.20);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4,h5,h6{
  margin:0 0 16px;
  font-weight:600;
  line-height:1.35;
  letter-spacing:-.01em;
  color:var(--ink);
  font-family:var(--font);
}

p{margin:0 0 20px;font-size:16px;line-height:1.75;color:var(--ink-2);}

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

img{max-width:100%;display:block;border-radius:var(--radius);}
ul,ol{margin:0 0 20px;padding-left:22px;}
li{margin-bottom:8px;color:var(--ink-2);line-height:1.75;}
button{font-family:var(--font);cursor:pointer;}
hr{border:0;border-top:1px solid var(--line);margin:40px 0;}

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

.section{padding:76px 0;}
.section-alt{background:var(--surface);}
.section-alt-up{background:var(--surface-alt);}

.section-head{margin-bottom:36px;}
.section-head.center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section-title{
  font-size:clamp(22px,2.4vw,26px);
  font-weight:700;
  display:flex;align-items:center;gap:12px;margin-bottom:14px;
}
.section-title::before{
  content:"";display:block;width:3px;height:18px;border-radius:2px;
  background:var(--primary);flex:0 0 auto;
}
.section-desc{font-size:15px;color:var(--ink-2);max-width:720px;margin:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -10px rgba(27,101,214,.9);}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(27,101,214,.9);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#F0682F;color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-soft{background:var(--primary-soft);color:var(--primary);}
.btn-soft:hover{background:var(--primary);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-up{background:rgba(18,181,168,.12);color:#0E8F85;}
.badge-accent{background:var(--accent-soft);color:#D9552A;}
.badge-muted{background:var(--surface-alt);color:var(--ink-2);}

.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);font-weight:500;
  transition:all .2s ease;
}
.tag-pill:hover{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -14px rgba(14,27,44,.35);
}
.brand-row{
  display:flex;align-items:center;gap:20px;
  height:64px;transition:height .25s ease;
}
.site-header.is-scrolled .brand-row{height:56px;}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),#3E8BEF);
  position:relative;overflow:hidden;
  box-shadow:0 6px 14px -8px rgba(27,101,214,.9);
}
.brand-mark::after{
  content:"";position:absolute;left:8px;top:8px;width:18px;height:18px;
  background:#fff;clip-path:polygon(0 0,100% 0,0 100%);opacity:.92;border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.06em;}

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

.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 12px;border-radius:999px;
  background:var(--surface-alt);border:1px solid transparent;
  transition:width .25s ease,border-color .2s ease,background .2s ease;
  width:196px;
}
.search-box:focus-within{width:260px;background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  border:0;background:transparent;height:100%;width:100%;
  font-size:14px;color:var(--ink);outline:none;font-family:var(--font);
}
.search-box input::placeholder{color:var(--ink-3);}

.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-sm);
  background:var(--surface-alt);border:1px solid var(--line);color:var(--ink);
  font-size:17px;
}
.nav-burger:hover{background:var(--primary-soft);color:var(--primary);}

.channel-row{
  height:44px;display:flex;align-items:stretch;gap:4px;
  overflow-x:auto;scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:100%;padding:0 16px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:2px solid transparent;white-space:nowrap;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.channel-link:hover{color:var(--primary);background:var(--surface-alt);}
.channel-link.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}

.hot-row{
  height:36px;background:var(--surface-alt);border-top:1px solid var(--line);
  transition:opacity .25s ease,transform .25s ease,height .25s ease;
  overflow:hidden;
}
.site-header.is-scrolled .hot-row{opacity:0;height:0;transform:translateY(-6px);border-top-color:transparent;}
.hot-inner{display:flex;align-items:center;gap:10px;height:36px;overflow-x:auto;scrollbar-width:none;}
.hot-inner::-webkit-scrollbar{display:none;}
.hot-label{font-size:12px;color:var(--ink-3);font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.hot-label i{color:var(--accent);}
.hot-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:12px;color:var(--ink-2);white-space:nowrap;
  transition:all .2s ease;
}
.hot-pill i{font-size:10px;color:var(--support);}
.hot-pill:hover{border-color:var(--primary);color:var(--primary);}
.hot-pill.flat i{color:var(--ink-3);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;visibility:hidden;opacity:0;
  transition:opacity .25s ease,visibility .25s ease;
}
.mobile-drawer.is-open{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(14,27,44,.5);}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(88vw,360px);height:100%;
  background:#fff;padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-16px 0 40px -20px rgba(14,27,44,.5);
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--surface-alt);color:var(--ink);font-size:16px;
}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 14px;
  border-radius:var(--radius-sm);background:var(--surface-alt);margin-bottom:20px;
}
.drawer-search i{color:var(--ink-3);}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px;font-family:var(--font);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:500;color:var(--ink);background:var(--surface-alt);
}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-top:1px solid var(--line);
  padding:56px 0 40px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,101,214,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(27,101,214,.04) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.hero .container{position:relative;z-index:1;}
.hero-copy{padding-right:8px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  font-size:17px;line-height:1.75;color:var(--ink-2);
  max-width:600px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.trust-list{display:flex;flex-wrap:wrap;gap:10px;}
.trust-item{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--ink-2);font-weight:500;
  padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);
}
.trust-item i{color:var(--support);font-size:12px;}

.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--surface-alt);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.hero-float{
  position:absolute;left:-14px;bottom:20px;
  background:#fff;border-radius:var(--radius);padding:14px 16px;
  box-shadow:0 18px 34px -18px rgba(14,27,44,.55);
  border:1px solid var(--line);min-width:186px;
}
.hero-float .fl-label{font-size:12px;color:var(--ink-3);margin-bottom:4px;}
.hero-float .fl-value{font-size:22px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-float .fl-meta{font-size:12px;color:var(--support);font-weight:600;margin-top:4px;}

.quick-row{
  margin-top:40px;display:flex;flex-wrap:wrap;gap:10px;
  padding-top:26px;border-top:1px dashed var(--line);
}
.quick-item{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  font-size:14px;font-weight:500;transition:all .2s ease;
}
.quick-item i{color:var(--primary);font-size:13px;}
.quick-item:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow);}

/* ---------- 指标看板 ---------- */
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;height:100%;display:flex;flex-direction:column;gap:14px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.metric-label{font-size:13px;color:var(--ink-2);font-weight:600;}
.metric-value{
  font-size:clamp(34px,3.4vw,44px);font-weight:700;line-height:1;
  color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-unit{font-size:14px;font-weight:600;color:var(--ink-3);margin-left:6px;}
.metric-track{height:4px;border-radius:999px;background:var(--surface-alt);overflow:hidden;}
.metric-track span{display:block;height:100%;border-radius:999px;background:var(--primary);}
.metric-track span.support{background:var(--support);}
.metric-track span.accent{background:var(--accent);}
.metric-note{font-size:12px;color:var(--ink-3);}

/* ---------- 服务矩阵 ---------- */
.matrix-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.matrix-icon{
  width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:16px;
}
.matrix-card h3{font-size:19px;margin-bottom:10px;}
.matrix-card p{font-size:15px;margin-bottom:16px;}
.matrix-list{list-style:none;padding:0;margin:0 0 18px;}
.matrix-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);margin-bottom:8px;
}
.matrix-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.matrix-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.matrix-link i{transition:transform .2s ease;}
.matrix-link:hover i{transform:translateX(4px);}
.matrix-card.wide{flex-direction:row;gap:28px;align-items:center;}
.matrix-card.wide .wide-body{flex:1 1 auto;}
.matrix-card.wide .wide-points{
  flex:0 0 44%;display:grid;grid-template-columns:1fr;gap:10px;
}
.wide-point{
  display:flex;gap:10px;align-items:flex-start;
  background:var(--surface-alt);border-radius:var(--radius-sm);padding:12px 14px;
}
.wide-point i{color:var(--accent);font-size:14px;margin-top:4px;}
.wide-point span{font-size:13px;color:var(--ink-2);line-height:1.6;}
.matrix-cover{
  border-radius:var(--radius);overflow:hidden;margin-bottom:16px;background:var(--surface-alt);
}
.matrix-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

/* ---------- CMS 列表 ---------- */
.cms-list{display:flex;flex-direction:column;gap:20px;}
.cms-feature{
  display:grid;grid-template-columns:minmax(0,42%) minmax(0,1fr);gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cms-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.cms-feature .feat-media{border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);}
.cms-feature .feat-media img{width:100%;height:100%;min-height:200px;object-fit:cover;border-radius:0;}
.cms-feature .feat-body{display:flex;flex-direction:column;}
.cms-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.cms-date{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.cms-feature h3{font-size:21px;line-height:1.45;margin-bottom:10px;}
.cms-feature h3 a{color:var(--ink);}
.cms-feature h3 a:hover{color:var(--primary);}
.cms-feature p{font-size:15px;margin-bottom:16px;}
.cms-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.cms-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cms-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.cms-thumb{
  width:96px;height:96px;flex:0 0 auto;border-radius:8px;overflow:hidden;background:var(--surface-alt);
}
.cms-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.cms-item-body{min-width:0;}
.cms-item-body h4{font-size:15px;line-height:1.5;margin-bottom:8px;font-weight:600;}
.cms-item-body h4 a{color:var(--ink);}
.cms-item-body h4 a:hover{color:var(--primary);}
.cms-item-body p{font-size:13px;margin:0 0 8px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:56px 24px;text-align:center;
}
.cms-empty .empty-icon{
  width:56px;height:56px;border-radius:14px;margin:0 auto 16px;
  background:var(--surface-alt);display:flex;align-items:center;justify-content:center;
  color:var(--ink-3);font-size:20px;
}
.cms-empty p{margin-bottom:18px;color:var(--ink-3);font-size:15px;}

/* ---------- 对比 ---------- */
.compare-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;}
.compare-card{border-radius:var(--radius-lg);padding:26px;border:1px solid var(--line);}
.compare-card.base{background:var(--surface-alt);}
.compare-card.tuned{background:var(--primary-soft);border-color:#C9DEFA;}
.compare-card h3{font-size:18px;margin-bottom:6px;}
.compare-card .compare-note{font-size:13px;color:var(--ink-2);margin-bottom:20px;}
.bar-item{margin-bottom:16px;}
.bar-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:6px;}
.bar-head span:first-child{color:var(--ink-2);}
.bar-head span:last-child{font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.75);overflow:hidden;}
.compare-card.base .bar-track{background:#fff;}
.bar-track span{display:block;height:100%;border-radius:999px;background:var(--ink-3);}
.compare-card.tuned .bar-track span{background:var(--primary);}
.conclusion{
  margin-top:22px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:16px 20px;font-size:15px;color:var(--ink-2);line-height:1.7;
}

/* ---------- FAQ ---------- */
.faq-accordion{list-style:none;margin:0;padding:0;border:0;background:transparent;}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;position:relative;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-accordion .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .22s ease;
}
.faq-accordion .accordion-item.is-open{border-color:var(--primary-soft);box-shadow:var(--shadow);}
.faq-accordion .accordion-item.is-open::before{transform:scaleY(1);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 22px;border:0;background:transparent;
  font-size:17px;font-weight:600;color:var(--ink);text-align:left;line-height:1.5;
}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .accordion-title .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  background:var(--surface-alt);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .18s ease,background .2s ease,color .2s ease;
}
.faq-accordion .accordion-item.is-open .faq-icon{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-accordion .accordion-content{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-accordion .accordion-inner{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.faq-accordion .accordion-inner p{margin:0;font-size:15px;color:var(--ink-2);}

/* ---------- 表单 ---------- */
.contact-wrap{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:32px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--shadow);
}
.contact-aside h2{font-size:24px;margin-bottom:14px;}
.contact-aside p{font-size:15px;margin-bottom:20px;}
.contact-points{list-style:none;padding:0;margin:0;}
.contact-points li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);margin-bottom:12px;
}
.contact-points i{color:var(--support);margin-top:4px;}
.contact-form .field{margin-bottom:16px;}
.contact-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.contact-form .req{color:var(--accent);margin-left:2px;}
.contact-form input[type=text],
.contact-form input[type=tel],
.contact-form select,
.contact-form textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;font-size:15px;color:var(--ink);
  font-family:var(--font);outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.contact-form textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px;}
.form-grid .full{grid-column:1 / -1;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 18px;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);}
.check-row label{font-size:13px;font-weight:400;color:var(--ink-2);margin:0;line-height:1.6;}
.privacy-note{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.7;}
.form-tip{
  margin-top:14px;padding:12px 16px;border-radius:var(--radius-sm);
  background:rgba(18,181,168,.10);color:#0E8F85;font-size:14px;font-weight:500;
}

/* ---------- CTA 横条 ---------- */
.cta-band{
  background:linear-gradient(135deg,#0E1B2C 0%,#16324F 60%,#14509F 100%);
  border-radius:var(--radius-lg);padding:40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:620px;}
.cta-band .btn-soft{background:rgba(255,255,255,.14);color:#fff;}
.cta-band .btn-soft:hover{background:#fff;color:var(--ink);}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1B2C;color:#fff;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:700;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);font-size:11px;}
.footer-desc{color:rgba(255,255,255,.68);font-size:14px;line-height:1.8;margin:0;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;transition:color .2s ease;}
.footer-links a:hover{color:#7FB4FF;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tag{
  padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.72);font-size:12px;transition:all .2s ease;
}
.footer-tag:hover{background:rgba(127,180,255,.22);color:#fff;}
.footer-info p{color:rgba(255,255,255,.68);font-size:14px;margin:0 0 10px;}
.footer-info i{color:#7FB4FF;margin-right:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;color:rgba(255,255,255,.55);font-size:13px;}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(255,255,255,.55);font-size:13px;}
.footer-bottom-links a:hover{color:#7FB4FF;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1140px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .search-box{display:none;}
  .nav-burger{display:inline-flex;}
  .brand-sub{display:none;}
  .hero{padding:40px 0 32px;}
  .hero-copy{padding-right:0;margin-bottom:32px;}
  .hero-float{left:12px;bottom:12px;}
  .cms-feature{grid-template-columns:minmax(0,1fr);}
  .cms-feature .feat-media img{min-height:180px;aspect-ratio:16/9;}
  .cms-grid{grid-template-columns:minmax(0,1fr);}
  .compare-grid{grid-template-columns:minmax(0,1fr);}
  .contact-wrap{grid-template-columns:minmax(0,1fr);padding:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .matrix-card.wide{flex-direction:column;align-items:flex-start;}
  .matrix-card.wide .wide-points{width:100%;flex:1 1 auto;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:44px 0;}
  body{font-size:15px;}
  .brand-row{height:60px;}
  .channel-link{padding:0 12px;font-size:14px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .trust-item{font-size:12px;}
  .quick-item{font-size:13px;height:38px;padding:0 13px;}
  .form-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:20px;}
  .contact-wrap{padding:22px;}
  .cms-item{flex-direction:column;}
  .cms-thumb{width:100%;height:140px;}
  .metric-card{padding:18px;}
}

/* roulang page: category1 */
:root{
  --bg:#F4F7FB; --surface:#FFFFFF; --surface-alt:#EEF3FA;
  --primary:#1B65D6; --primary-strong:#14509F; --primary-soft:#E7F0FD;
  --accent:#FF7A45; --accent-soft:#FFF0E9;
  --support:#12B5A8;
  --ink:#0E1B2C; --ink-2:#52637A; --ink-3:#8A9AAE; --line:#E3EAF4;
  --radius-lg:16px; --radius:12px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(14,27,44,.04), 0 10px 28px -12px rgba(14,27,44,.10);
  --shadow-hover:0 2px 6px rgba(14,27,44,.06), 0 18px 38px -16px rgba(14,27,44,.20);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-strong)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -10px rgba(27,101,214,.85)}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 18px -10px rgba(255,122,69,.9)}
.btn-accent:hover{background:#F06427;color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--line)}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-strong)}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.24)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{display:flex;width:100%}
.btn:active{transform:translateY(0)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px -18px rgba(14,27,44,.45)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height .22s ease}
.site-header.is-scrolled .brand-row{height:56px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;color:inherit}
.brand-mark{
  position:relative;flex:none;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-strong));
}
.brand-mark::before{
  content:"";position:absolute;left:11px;top:11px;width:16px;height:16px;
  border:2px solid rgba(255,255,255,.95);border-radius:4px;transform:skewX(-14deg);
}
.brand-mark::after{
  content:"";position:absolute;left:11px;top:19px;width:16px;height:2px;
  background:rgba(255,255,255,.95);transform:skewX(-14deg);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--ink-3);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:12px;flex:none}
.search-box{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  background:var(--surface-alt);border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.search-box i{color:var(--ink-3);font-size:13px}
.search-box input{
  border:0;background:transparent;outline:none;width:190px;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft)}
.nav-burger{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);background:#fff;border-radius:var(--radius-sm);
  color:var(--ink-2);cursor:pointer;font-size:17px;
}
.nav-burger:hover{border-color:var(--primary);color:var(--primary)}
.channel-row{
  display:flex;align-items:stretch;gap:30px;height:44px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;padding:0 2px;font-size:15px;color:var(--ink-2);
  border-bottom:2px solid transparent;white-space:nowrap;transition:color .18s ease,border-color .18s ease;
}
.channel-link:hover{color:var(--primary)}
.channel-link.active{color:var(--primary);font-weight:600;border-bottom-color:var(--primary)}
.hot-row{
  background:var(--surface-alt);border-top:1px solid var(--line);
  max-height:40px;overflow:hidden;opacity:1;
  transition:max-height .26s ease,opacity .26s ease;
}
.site-header.is-scrolled .hot-row{max-height:0;opacity:0}
.hot-inner{display:flex;align-items:center;gap:10px;height:38px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{flex:none;font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:6px}
.hot-label i{color:var(--accent)}
.hot-pill{
  flex:none;display:inline-flex;align-items:center;gap:6px;padding:3px 12px;
  font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:999px;transition:all .18s ease;
}
.hot-pill i{font-size:11px;color:var(--support)}
.hot-pill:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}
.hot-pill.flat i{color:var(--ink-3)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,27,44,.45);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,380px);background:#fff;z-index:95;
  padding:22px 22px 32px;overflow-y:auto;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-18px 0 40px -22px rgba(14,27,44,.5);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-sm);
  color:var(--ink-2);font-size:18px;cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary)}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:18px}
.drawer-search input{border:0;background:transparent;outline:none;flex:1;font-size:15px}
.drawer-search i{color:var(--ink-3)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:0 12px;
  border-radius:var(--radius-sm);color:var(--ink-2);font-size:15px;transition:all .18s ease;
}
.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.drawer-sub{font-size:13px;font-weight:600;color:var(--ink-3);margin:6px 0 10px;letter-spacing:.02em}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;background:#fff;border-bottom:1px solid var(--line);
  padding:32px 0 44px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,101,214,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(27,101,214,.045) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 78%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-bottom:26px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--ink-2)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;
  letter-spacing:.02em;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.hero-copy h1{
  font-size:clamp(26px,3.4vw,36px);line-height:1.28;font-weight:700;
  letter-spacing:-.01em;color:var(--ink);margin-bottom:16px;
}
.hero-sub{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:560px;margin-bottom:24px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  background:var(--surface-alt);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:all .18s ease;
}
.chip i{color:var(--primary);font-size:12px}
.chip:hover{border-color:var(--primary);color:var(--primary);background:#fff}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--surface-alt);
}
.hud-card{
  position:absolute;left:-14px;bottom:-18px;min-width:186px;
  background:#0E1B2C;border-radius:var(--radius);padding:14px 18px;color:#fff;
  box-shadow:0 18px 34px -18px rgba(14,27,44,.7);
}
.hud-card .hud-label{display:block;font-size:12px;color:#9FB3CB;letter-spacing:.02em}
.hud-card .hud-num{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2}
.hud-card .hud-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:4px;font-size:12px;color:#7FE3D8;
}
.hud-card .hud-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--support)}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0 8px}
.section-head{margin-bottom:28px}
.section-title{
  position:relative;padding-left:14px;font-size:24px;font-weight:700;color:var(--ink);letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--primary);
}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-2);padding-left:14px}

/* ---------- 分类页主体布局 ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:32px;align-items:start}
.toc-column{position:sticky;top:120px}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow);
}
.toc-title{
  position:relative;padding-left:12px;font-size:17px;font-weight:700;color:var(--ink);margin-bottom:16px;
}
.toc-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--primary);
}
.toc-toggle{
  display:none;width:100%;align-items:center;justify-content:space-between;
  min-height:44px;padding:0 4px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--ink);
}
.toc-toggle i{color:var(--ink-3);transition:transform .2s ease}
.toc-card.collapsed .toc-toggle i{transform:rotate(-180deg)}
.toc-list{display:flex;flex-direction:column;gap:2px;margin-bottom:18px}
.toc-link{
  display:flex;align-items:center;gap:10px;min-height:40px;padding:0 10px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--ink-2);border-left:2px solid transparent;transition:all .18s ease;
}
.toc-link::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--line);flex:none;transition:background .18s ease;
}
.toc-link:hover{background:var(--surface-alt);color:var(--primary)}
.toc-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600;border-left-color:var(--primary)}
.toc-link.active::before{background:var(--primary)}
.toc-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin-bottom:16px}

/* ---------- 内容块 ---------- */
.content-column{display:flex;flex-direction:column;gap:24px;min-width:0}
.block{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 34px 30px;box-shadow:var(--shadow);scroll-margin-top:130px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.block:hover{border-color:var(--primary-soft);box-shadow:var(--shadow-hover)}
.block-title{
  position:relative;padding-left:14px;font-size:23px;font-weight:700;color:var(--ink);
  letter-spacing:-.01em;margin-bottom:8px;
}
.block-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--primary);
}
.block-kicker{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  color:var(--primary);letter-spacing:.06em;text-transform:uppercase;margin-bottom:10px;
}
.block-kicker i{font-size:11px}
.prose p{font-size:16px;line-height:1.8;color:var(--ink-2);margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:600}
.point-list{display:grid;gap:12px;margin:20px 0}
.point-list li{
  position:relative;padding-left:28px;font-size:15px;line-height:1.75;color:var(--ink-2);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:3px;
  background:var(--primary-soft);border:2px solid var(--primary);
}
.point-list li strong{color:var(--ink);font-weight:600}
.figure-row{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:26px;align-items:center;margin:22px 0 4px}
.figure-row.reverse .figure-card{order:2}
.figure-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure-cap{font-size:13px;color:var(--ink-3);padding:10px 14px;background:#fff;border-top:1px solid var(--line)}
.side-note{
  background:var(--surface-alt);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:18px 20px;
}
.side-note h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px}
.side-note p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- 对比面板 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}
.compare-card{border-radius:var(--radius);padding:22px;border:1px solid var(--line)}
.compare-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.compare-card .compare-sub{font-size:13px;margin-bottom:14px}
.compare-card ul{display:grid;gap:9px}
.compare-card li{position:relative;padding-left:18px;font-size:14px;line-height:1.7}
.compare-card li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%}
.compare-base{background:var(--surface-alt);border-color:var(--line);color:var(--ink-2)}
.compare-base h3{color:var(--ink)}
.compare-base .compare-sub{color:var(--ink-3)}
.compare-base li::before{background:var(--ink-3)}
.compare-main{background:var(--primary-soft);border-color:#BFD8F8}
.compare-main h3{color:var(--primary-strong)}
.compare-main .compare-sub{color:var(--primary)}
.compare-main li{color:var(--ink-2)}
.compare-main li::before{background:var(--primary)}

/* ---------- 深色数据面板 ---------- */
.hud-panel{background:#0E1B2C;border-radius:var(--radius-lg);padding:26px;color:#fff;margin:22px 0}
.hud-panel .hud-title{font-size:14px;color:#9FB3CB;letter-spacing:.04em;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.hud-panel .hud-title i{color:var(--accent)}
.hud-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:22px}
.hud-metric span{display:block;font-size:13px;color:#9FB3CB;margin-bottom:4px}
.hud-metric strong{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff}
.hud-metric em{font-size:13px;font-style:normal;color:#7FE3D8;margin-left:4px}
.hud-bars{display:grid;gap:14px}
.hud-bar-row{display:flex;align-items:center;gap:14px;font-size:13px;color:#C8D4E4}
.hud-bar-row .bar-name{width:88px;flex:none}
.bar{flex:1;height:6px;border-radius:999px;background:rgba(255,255,255,.14);overflow:hidden}
.bar span{display:block;height:100%;border-radius:999px;background:var(--support)}
.bar.alt span{background:var(--accent)}
.hud-bar-row .bar-val{width:44px;text-align:right;font-variant-numeric:tabular-nums;color:#fff;font-weight:600}

/* ---------- 步骤流 ---------- */
.step-list{display:grid;gap:14px;margin:22px 0 4px}
.step-item{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;align-items:start;
  background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;
  transition:all .18s ease;
}
.step-item:hover{background:#fff;border-color:var(--primary-soft);box-shadow:var(--shadow)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px}
.step-body p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- 结论条 ---------- */
.conclusion{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px 18px 24px;margin-top:22px;
}
.conclusion::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--accent);
}
.conclusion p{font-size:15px;line-height:1.75;color:var(--ink-2)}
.conclusion strong{color:var(--ink)}

/* ---------- CTA 横条 ---------- */
.cta-band{
  background:#0E1B2C;border-radius:var(--radius-lg);padding:36px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center;
  margin-top:28px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(27,101,214,.55),transparent 68%);
}
.cta-band h2{font-size:23px;font-weight:700;color:#fff;margin-bottom:10px;letter-spacing:-.01em;position:relative}
.cta-band p{font-size:15px;line-height:1.75;color:#B9C7DA;max-width:620px;position:relative}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 22px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--primary-soft);box-shadow:var(--shadow)}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 0 16px 0;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;font-size:20px;font-weight:400;color:var(--primary);line-height:1;
  transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 0 20px;border-left:3px solid var(--primary);padding-left:16px;margin-bottom:20px}
.faq-item .faq-body p{font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1B2C;color:#C8D4E4;margin-top:64px;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand .text{display:flex;flex-direction:column}
.footer-brand .brand-name{color:#fff;font-size:15px;font-weight:700}
.footer-brand .brand-sub{font-size:12px;color:#8A9AAE}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB3CB;max-width:340px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:2px}
.footer-links a,.footer-info p{font-size:14px;color:#9FB3CB;line-height:2.1;transition:color .18s ease}
.footer-links a:hover{color:#8FBDF8}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);font-size:13px;color:#C8D4E4;transition:all .18s ease;
}
.footer-tag:hover{border-color:#8FBDF8;color:#8FBDF8;background:rgba(27,101,214,.16)}
.footer-info p{display:flex;align-items:flex-start;gap:8px}
.footer-info i{color:#8A9AAE;margin-top:6px;font-size:12px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E90A8;
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom-links a{color:#9FB3CB;font-size:13px}
.footer-bottom-links a:hover{color:#8FBDF8}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .search-box input{width:140px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual img{aspect-ratio:16/9}
  .hud-card{left:auto;right:14px;bottom:-16px}
  .cat-layout{grid-template-columns:1fr;gap:22px}
  .toc-column{position:static}
  .toc-card{padding:16px 18px}
  .toc-toggle{display:flex}
  .toc-title{display:none}
  .toc-card.collapsed .toc-list,.toc-card.collapsed .toc-note,.toc-card.collapsed .toc-cta{display:none}
  .toc-list{flex-direction:row;flex-wrap:wrap;gap:8px;margin-bottom:0}
  .toc-link{background:var(--surface-alt);border-left:0;border-radius:999px;padding:0 14px;min-height:38px}
  .toc-link::before{display:none}
  .toc-link.active{background:var(--primary);color:#fff}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:860px){
  .search-box{display:none}
  .brand-actions .btn{display:none}
  .nav-burger{display:inline-flex}
  .channel-row{gap:22px}
  .section{padding:44px 0 6px}
  .block{padding:26px 22px}
  .figure-row{grid-template-columns:1fr;gap:20px}
  .figure-row.reverse .figure-card{order:0}
  .compare-grid{grid-template-columns:1fr}
  .hud-metrics{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:28px}
  .cta-actions{width:100%}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .brand-sub{display:none}
  .hero-sub{font-size:15px}
  .page-hero{padding:24px 0 34px}
  .section-title{font-size:20px}
  .block-title{font-size:20px}
  .section-desc{padding-left:14px;font-size:14px}
  .hero-chips .chip{font-size:12px;padding:6px 12px}
  .hud-card{padding:12px 14px;min-width:150px}
  .hud-card .hud-num{font-size:24px}
  .hud-metrics{grid-template-columns:1fr}
  .step-item{grid-template-columns:1fr;gap:10px}
  .cta-band h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .btn{height:44px;font-size:15px}
}

/* roulang page: article */
:root{
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --surface-alt:#EEF3FA;
  --primary:#1B65D6;
  --primary-strong:#14509F;
  --primary-soft:#E7F0FD;
  --accent:#FF7A45;
  --accent-soft:#FFF0E9;
  --support:#12B5A8;
  --ink:#0E1B2C;
  --ink-2:#52637A;
  --ink-3:#8A9AAE;
  --line:#E3EAF4;
  --r-xs:8px;
  --r:12px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(14,27,44,.04), 0 10px 28px -12px rgba(14,27,44,.10);
  --sh-2:0 2px 6px rgba(14,27,44,.06), 0 20px 44px -18px rgba(14,27,44,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-strong)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:22px}
button{font:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--primary-soft);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section-head{margin-bottom:34px;max-width:760px}
.section-title{font-size:24px;font-weight:700;letter-spacing:-.01em;position:relative;padding-left:14px;line-height:1.4}
.section-title::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--primary)}
.section-sub{margin-top:10px;color:var(--ink-2);font-size:15px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px -12px rgba(14,27,44,.28)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height .22s ease}
.site-header.is-scrolled .brand-row{height:56px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;color:var(--ink)}
.brand-mark{position:relative;width:30px;height:30px;border-radius:9px;background:var(--primary);flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:14px;height:14px;border-radius:5px;background:var(--accent);border:2px solid #fff}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-sub{font-size:12px;color:var(--ink-3);line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface-alt);color:var(--ink-3);transition:border-color .18s ease,background .18s ease}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft)}
.search-box input{border:0;background:transparent;outline:none;width:186px;font-size:14px;color:var(--ink)}
.search-box input::placeholder{color:var(--ink-3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .16s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(27,101,214,.9)}
.btn-primary:hover{background:var(--primary-strong);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px -16px rgba(27,101,214,.95)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary-soft)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-strong);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#ef6a34;color:#fff;transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.nav-burger{display:none;width:44px;height:44px;border-radius:10px;color:var(--ink);align-items:center;justify-content:center;font-size:18px;border:1px solid var(--line);background:#fff}
.nav-burger:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary-soft)}
.channel-row{display:flex;align-items:center;gap:6px;height:44px;overflow-x:auto;scrollbar-width:none}
.channel-row::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;font-size:15px;color:var(--ink-2);white-space:nowrap;font-weight:500}
.channel-link:hover{color:var(--primary)}
.channel-link.active{color:var(--primary);font-weight:600}
.channel-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--primary)}
.hot-row{background:var(--surface-alt);border-top:1px solid var(--line);max-height:40px;overflow:hidden;transition:max-height .26s ease,opacity .2s ease,visibility .2s ease}
.site-header.is-scrolled .hot-row{max-height:0;opacity:0;visibility:hidden}
.hot-inner{display:flex;align-items:center;gap:10px;height:36px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-3);white-space:nowrap}
.hot-label i{color:var(--accent)}
.hot-pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);white-space:nowrap}
.hot-pill:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.hot-pill i{font-size:11px;color:var(--support)}
.hot-pill.flat i{color:var(--ink-3)}

/* ============ 面包屑与文章头 ============ */
.article-hero{padding:26px 0 40px;background:linear-gradient(180deg,#FFFFFF 0%,rgba(255,255,255,0) 100%)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C3CEDC}
.breadcrumb .current{color:var(--ink-2)}
.article-head{margin-top:22px;max-width:880px}
.tag-badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600}
.article-title{margin-top:16px;font-size:clamp(26px,3.4vw,36px);line-height:1.32;font-weight:700;letter-spacing:-.01em}
.article-lead{margin-top:16px;font-size:16px;color:var(--ink-2);line-height:1.85}
.meta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:20px;font-size:14px;color:var(--ink-3)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-badge{height:26px;padding:0 10px;border-radius:999px;background:var(--surface-alt);color:var(--ink-2);font-size:13px}
.cover-figure{margin-top:30px;border-radius:var(--r-lg);overflow:hidden;background:var(--surface-alt);box-shadow:var(--sh-1)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 双栏主体 ============ */
.article-main{padding:48px 0 64px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:32px;align-items:start}
.article-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:36px 40px 32px;min-width:0}
.toc-mobile{display:none;border:1px solid var(--line);background:var(--surface-alt);border-radius:var(--r);margin-bottom:26px;overflow:hidden}
.toc-mobile-head{display:flex;align-items:center;justify-content:space-between;width:100%;height:48px;padding:0 16px;font-size:15px;font-weight:600;color:var(--ink)}
.toc-mobile-head i{transition:transform .2s ease;color:var(--ink-3)}
.toc-mobile.open .toc-mobile-head i{transform:rotate(180deg)}
.toc-mobile-body{display:none;padding:0 16px 14px}
.toc-mobile.open .toc-mobile-body{display:block;border-top:1px solid var(--line);padding-top:12px}

.article-body{font-size:17px;line-height:1.85;color:#22303F;max-width:760px}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 24px}
.article-body h2{position:relative;font-size:24px;font-weight:700;line-height:1.45;margin:44px 0 18px;padding-left:16px;letter-spacing:-.01em;scroll-margin-top:120px}
.article-body h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:2px;background:var(--primary)}
.article-body h3{font-size:19px;font-weight:600;margin:32px 0 14px;color:var(--ink);scroll-margin-top:120px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px}
.article-body ul,.article-body ol{margin:0 0 24px;padding-left:24px}
.article-body li{margin:8px 0}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{margin:0 0 24px;padding:18px 22px;background:var(--surface-alt);border-left:3px solid var(--primary);border-radius:0 var(--r) var(--r) 0;color:var(--ink-2);font-size:16px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--primary-strong);text-decoration-thickness:2px}
.article-body img{border-radius:var(--r);margin:6px 0 8px;background:var(--surface-alt)}
.article-body figure{margin:0 0 26px}
.article-body figcaption{font-size:13px;color:var(--ink-3);margin-top:8px;text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px;display:block;overflow-x:auto}
.article-body thead th{background:var(--surface-alt);font-weight:600;color:var(--ink);text-align:left}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body tbody tr:nth-child(even){background:#FAFCFF}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body code{background:var(--surface-alt);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--primary-strong)}

.empty-state{padding:56px 24px;text-align:center;background:var(--surface-alt);border:1px dashed var(--line);border-radius:var(--r);color:var(--ink-2)}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px}
.empty-state p{font-size:15px;margin-bottom:18px}

.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.tag-pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:var(--surface-alt);color:var(--ink-2);font-size:14px;border:1px solid transparent}
.tag-pill:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.post-nav-item{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:#FBFDFF;transition:transform .16s ease,box-shadow .2s ease,border-color .2s ease}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--sh-1);border-color:var(--primary-soft)}
.post-nav-item .pn-label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:6px}
.post-nav-item .pn-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.6}
.post-nav-item:hover .pn-title{color:var(--primary)}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:120px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--sh-1)}
.side-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--accent)}
.toc-list{list-style:none;padding:0;margin:0;max-height:360px;overflow-y:auto}
.toc-list li{margin:0}
.toc-link{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink-2);line-height:1.6;border-left:2px solid transparent}
.toc-link:hover{background:var(--surface-alt);color:var(--primary)}
.toc-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600;border-left-color:var(--primary)}
.toc-empty{font-size:14px;color:var(--ink-3);line-height:1.7}
.quick-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.quick-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border-radius:10px;background:var(--surface-alt);font-size:14px;color:var(--ink-2);font-weight:500}
.quick-list a:hover{background:var(--primary-soft);color:var(--primary)}
.quick-list i{font-size:12px;color:var(--ink-3)}
.quick-list a:hover i{color:var(--primary)}
.side-tip{background:var(--accent-soft);border-color:#FFDCCB}
.side-tip .side-title::before{background:var(--accent)}
.side-tip p{font-size:14px;color:#8A4A28;line-height:1.75}

/* ============ 相关推荐 ============ */
.related-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .18s ease,box-shadow .22s ease,border-color .22s ease}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary-soft)}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-alt)}
.related-card .rc-body{padding:18px 20px 22px}
.related-card .rc-badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600}
.related-card h3{margin-top:12px;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink)}
.related-card:hover h3{color:var(--primary)}
.related-card p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}
.related-card .rc-meta{margin-top:14px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px}

/* ============ 结尾 CTA ============ */
.cta-band{padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background:var(--ink);border-radius:var(--r-lg);padding:34px 38px;color:#fff;position:relative;overflow:hidden}
.cta-inner::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:rgba(27,101,214,.35)}
.cta-inner h2{font-size:22px;font-weight:700;position:relative;z-index:1}
.cta-inner p{margin-top:10px;font-size:15px;color:#BBC8DA;max-width:620px;position:relative;z-index:1}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#0E1B2C;color:#C7D3E3;padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:42px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark::after{border-color:#0E1B2C}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:700;display:block}
.footer-brand .brand-sub{color:#8497AE;font-size:12px;display:block}
.footer-desc{font-size:14px;line-height:1.8;color:#93A4BA}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#B7C5D8;font-size:14px}
.footer-links a:hover{color:#7FB2F5}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(255,255,255,.06);color:#B7C5D8;font-size:13px}
.footer-tag:hover{background:rgba(127,178,245,.18);color:#9CC4FA}
.footer-info p{font-size:14px;color:#93A4BA;margin-bottom:10px;display:flex;gap:9px;align-items:flex-start;line-height:1.7}
.footer-info i{color:#5D7899;margin-top:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:#7E90A8}
.footer-bottom-links{display:flex;gap:18px}
.footer-bottom-links a{font-size:13px;color:#9FB0C6}
.footer-bottom-links a:hover{color:#7FB2F5}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);background:#fff;z-index:220;transform:translateX(102%);transition:transform .28s ease;padding:20px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;box-shadow:-16px 0 40px -20px rgba(14,27,44,.4)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-head .brand-name{font-size:15px;font-weight:700}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink)}
.drawer-close:hover{background:var(--primary-soft);color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;font-size:16px;color:var(--ink-2);font-weight:500}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--primary-soft);color:var(--primary)}
.drawer-search{width:100%}
.drawer-search input{width:100%}
.drawer-mask{position:fixed;inset:0;background:rgba(14,27,44,.45);z-index:210;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer-mask.open{opacity:1;visibility:visible}

.back-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:14px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 30px -14px rgba(27,101,214,.9);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .24s ease;z-index:130}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--primary-strong)}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 300px}
  .side-card.toc-box{display:none}
  .toc-mobile{display:block}
  .related-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
}
@media (max-width:900px){
  .search-box{display:none}
  .nav-burger{display:flex}
  .brand-sub{display:none}
  .article-card{padding:26px 22px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:44px 0}
  .article-hero{padding:18px 0 28px}
  .article-main{padding:32px 0 48px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:34px}
  .post-nav{grid-template-columns:1fr}
  .related-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-inner{padding:26px 22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-side{flex-direction:column}
}
@media (max-width:520px){
  .brand-name{font-size:15px}
  .btn-sm{padding:0 13px}
  .article-title{font-size:24px}
  .meta-row{gap:12px;font-size:13px}
  .back-top{right:16px;bottom:18px}
}

/* roulang page: category2 */
:root{
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --surface-alt:#EEF3FA;
  --primary:#1B65D6;
  --primary-strong:#14509F;
  --primary-soft:#E7F0FD;
  --accent:#FF7A45;
  --accent-soft:#FFF0E9;
  --support:#12B5A8;
  --ink:#0E1B2C;
  --ink-2:#52637A;
  --ink-3:#8A9AAE;
  --line:#E3EAF4;
  --radius:12px;
  --radius-lg:16px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(14,27,44,.04), 0 10px 28px -12px rgba(14,27,44,.10);
  --shadow-hover:0 2px 4px rgba(14,27,44,.06), 0 18px 36px -14px rgba(14,27,44,.18);
  --font:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*,*::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:1.75;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}
.section{padding:72px 0;}
.section-alt{background:var(--surface);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{font-size:24px;font-weight:700;letter-spacing:-.01em;position:relative;padding-left:14px;line-height:1.35;}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--primary);}
.section-desc{margin-top:10px;font-size:14px;color:var(--ink-2);padding-left:14px;max-width:720px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:6px 14px;letter-spacing:.02em;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -10px rgba(27,101,214,.65);}
.btn-primary:hover{background:var(--primary-strong);transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(20,80,159,.7);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px rgba(255,122,69,.7);}
.btn-accent:hover{background:#F0672F;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.pill{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:500;background:var(--primary-soft);color:var(--primary);}
.pill-accent{background:var(--accent-soft);color:#D4541F;}
.pill-support{background:rgba(18,181,168,.12);color:#0B8C82;}
.pill-mute{background:var(--surface-alt);color:var(--ink-2);}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:13px;background:var(--surface-alt);color:var(--ink-2);border:1px solid var(--line);transition:all .18s ease;}
.tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ============ HEADER ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-top:1px solid var(--primary);transition:box-shadow .2s ease;}
.site-header.is-stuck{box-shadow:0 1px 0 var(--line), 0 12px 28px -20px rgba(14,27,44,.4);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;transition:height .2s ease;}
.site-header.is-stuck .brand-row{height:56px;}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-strong));position:relative;flex:none;box-shadow:0 6px 14px -8px rgba(27,101,214,.9);}
.brand-mark::after{content:"";position:absolute;right:6px;top:6px;width:11px;height:11px;background:var(--accent);border-radius:3px;transform:skewX(-14deg);}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-sub{font-size:12px;color:var(--ink-3);letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search-box{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface-alt);transition:all .18s ease;}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{border:0;background:transparent;outline:none;width:170px;font-size:14px;color:var(--ink);}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-soft);}
.nav-burger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);color:var(--ink);align-items:center;justify-content:center;font-size:16px;}
.channel-row{display:flex;align-items:center;gap:6px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;}
.channel-link::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:transparent;transition:background-color .18s ease;}
.channel-link:hover{color:var(--primary);}
.channel-link.active{color:var(--primary);font-weight:600;}
.channel-link.active::after{background:var(--primary);}
.hot-row{background:var(--surface-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);transition:opacity .25s ease,transform .25s ease,max-height .25s ease;}
.site-header.is-stuck .hot-row{opacity:0;transform:translateY(-8px);max-height:0;overflow:hidden;border-color:transparent;}
.hot-inner{display:flex;align-items:center;gap:10px;height:36px;overflow-x:auto;scrollbar-width:none;}
.hot-inner::-webkit-scrollbar{display:none;}
.hot-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink-2);white-space:nowrap;}
.hot-label i{color:var(--accent);}
.hot-pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink-2);white-space:nowrap;transition:all .18s ease;}
.hot-pill i{font-size:11px;color:var(--support);}
.hot-pill.flat i{color:var(--ink-3);}
.hot-pill:hover{border-color:var(--primary);color:var(--primary);}
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(14,27,44,.5);}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--surface);padding:22px 20px;overflow-y:auto;box-shadow:-14px 0 36px -18px rgba(14,27,44,.5);animation:slideIn .22s ease;}
@keyframes slideIn{from{transform:translateX(24px);opacity:.6}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:18px;}
.drawer-nav a{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink-2);}
.drawer-nav a.active,.drawer-nav a:hover{background:var(--primary-soft);color:var(--primary);}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface-alt);margin-bottom:16px;}
.drawer-search input{border:0;background:transparent;outline:none;flex:1;font-size:14px;}
.drawer-title{font-size:13px;font-weight:600;color:var(--ink-3);margin:6px 0 10px;letter-spacing:.04em;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}

/* ============ PAGE HERO ============ */
.page-hero{position:relative;background:#0E1B2C;color:#fff;overflow:hidden;}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(100deg,rgba(14,27,44,.94) 0%,rgba(14,27,44,.86) 42%,rgba(14,27,44,.55) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:24px 24px;z-index:1;}
.page-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:56px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:18px;flex-wrap:wrap;}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.35);}
.page-hero h1{font-size:clamp(26px,3.2vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;max-width:900px;}
.page-hero p.lead{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.78);max-width:780px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-meta .pill{background:rgba(255,255,255,.12);color:#fff;}
.hero-meta .pill i{color:var(--accent);}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ STAT STRIP ============ */
.stat-strip{margin-top:-38px;position:relative;z-index:5;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 22px 18px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.stat-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.stat-label{font-size:13px;color:var(--ink-3);font-weight:500;}
.stat-value{display:flex;align-items:baseline;gap:6px;margin:10px 0 4px;font-variant-numeric:tabular-nums;}
.stat-value strong{font-size:38px;font-weight:700;line-height:1;letter-spacing:-.02em;color:var(--ink);}
.stat-value span{font-size:14px;color:var(--ink-2);}
.stat-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px;}
.stat-bar{height:4px;border-radius:2px;background:var(--surface-alt);overflow:hidden;margin-top:12px;}
.stat-bar i{display:block;height:100%;border-radius:2px;background:var(--primary);}
.stat-bar i.s{background:var(--support);}
.stat-bar i.a{background:var(--accent);}

/* ============ TOPIC MATRIX ============ */
.topic-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;}
.topic-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.topic-card.tall{grid-row:span 2;}
.topic-card.wide{grid-column:1 / -1;flex-direction:row;align-items:center;gap:28px;padding:22px 26px;}
.topic-thumb{border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);aspect-ratio:16/9;margin-bottom:18px;}
.topic-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.topic-card:hover .topic-thumb img{transform:scale(1.03);}
.topic-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin-bottom:10px;color:var(--ink);}
.topic-card p{font-size:14px;line-height:1.8;color:var(--ink-2);}
.topic-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.topic-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.topic-list li i{color:var(--support);margin-top:5px;font-size:12px;flex:none;}
.topic-link{margin-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);}
.topic-link:hover{gap:12px;color:var(--primary-strong);}
.topic-card.wide .wide-thumb{width:220px;flex:none;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);}
.topic-card.wide .wide-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.topic-card.wide .wide-body{flex:1;min-width:0;}

/* ============ HUD PANEL ============ */
.hud{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:32px;position:relative;overflow:hidden;}
.hud::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px;}
.hud-inner{position:relative;z-index:2;}
.hud-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px;}
.hud-head h2{font-size:22px;font-weight:700;letter-spacing:-.01em;}
.hud-head .hud-note{font-size:13px;color:rgba(255,255,255,.6);}
.hud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.hud-cell{border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:20px;background:rgba(255,255,255,.04);}
.hud-cell .k{font-size:13px;color:rgba(255,255,255,.62);}
.hud-cell .v{font-size:32px;font-weight:700;margin:10px 0 6px;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.hud-cell .v em{font-style:normal;font-size:14px;font-weight:500;color:rgba(255,255,255,.6);margin-left:6px;}
.hud-cell .d{font-size:13px;color:rgba(255,255,255,.6);}
.hud-cell .d i{color:var(--support);}
.hud-foot{margin-top:22px;padding-top:18px;border-top:1px dashed rgba(255,255,255,.18);font-size:13px;color:rgba(255,255,255,.66);display:flex;gap:10px;align-items:flex-start;}
.hud-foot i{color:var(--accent);margin-top:4px;}

/* ============ COMPARE TABLE ============ */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow);}
table.cmp{width:100%;border-collapse:collapse;min-width:680px;font-size:14px;}
table.cmp thead th{background:var(--surface-alt);color:var(--ink-2);font-weight:600;text-align:left;padding:16px 20px;font-size:13px;letter-spacing:.02em;border-bottom:1px solid var(--line);white-space:nowrap;}
table.cmp tbody td{padding:18px 20px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;}
table.cmp tbody tr:nth-child(even) td{background:#FAFCFF;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody td:first-child{color:var(--ink);font-weight:600;}
table.cmp tbody tr:hover td{background:var(--primary-soft);}

/* ============ TIMELINE ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
.timeline::before{content:"";position:absolute;left:22px;right:22px;top:19px;height:2px;background:linear-gradient(90deg,var(--primary),var(--support));opacity:.25;}
.tl-step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px 20px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.tl-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-soft);}
.tl-num{width:40px;height:40px;border-radius:999px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:16px;position:relative;z-index:2;box-shadow:0 8px 18px -10px rgba(27,101,214,.9);}
.tl-step:nth-child(3) .tl-num,.tl-step:nth-child(4) .tl-num{background:var(--primary-strong);}
.tl-step:nth-child(5) .tl-num{background:var(--accent);box-shadow:0 8px 18px -10px rgba(255,122,69,.9);}
.tl-step h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.tl-step p{font-size:13.5px;color:var(--ink-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.faq-item.open{border-color:var(--primary-soft);box-shadow:var(--shadow);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;text-align:left;padding:18px 20px 18px 22px;font-size:17px;font-weight:600;color:var(--ink);position:relative;}
.faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--primary);opacity:0;transition:opacity .18s ease;}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q:hover{color:var(--primary);}
.faq-icon{width:28px;height:28px;border-radius:999px;background:var(--surface-alt);color:var(--primary);display:flex;align-items:center;justify-content:center;flex:none;transition:transform .18s ease,background-color .18s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--primary);color:#fff;}
.faq-a{display:none;padding:0 22px 20px 22px;font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.faq-item.open .faq-a{display:block;}

/* ============ MINI FORM ============ */
.mini-form-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center;}
.mini-form-wrap h2{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:12px;}
.mini-form-wrap .form-intro p{font-size:14px;color:var(--ink-2);line-height:1.8;}
.form-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.form-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.form-points li i{color:var(--primary);margin-top:5px;font-size:12px;flex:none;}
.mini-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field select{height:46px;border:1px solid var(--line);border-radius:10px;padding:0 14px;background:var(--surface);font-size:14.5px;outline:none;transition:border-color .18s ease,box-shadow .18s ease;}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
.form-note{grid-column:1 / -1;font-size:12.5px;color:var(--ink-3);line-height:1.7;}
.form-note a{color:var(--primary);text-decoration:underline;}
.form-status{grid-column:1 / -1;display:none;font-size:13.5px;border-radius:10px;padding:12px 14px;}
.form-status.ok{display:block;background:rgba(18,181,168,.12);color:#0B8C82;border:1px solid rgba(18,181,168,.35);}
.form-status.err{display:block;background:var(--accent-soft);color:#C24A18;border:1px solid rgba(255,122,69,.4);}

/* ============ CTA BAND ============ */
.cta-band{background:linear-gradient(100deg,var(--primary) 0%,var(--primary-strong) 100%);border-radius:var(--radius-lg);padding:36px;color:#fff;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-band h2{font-size:23px;font-weight:700;letter-spacing:-.01em;}
.cta-band p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.82);max-width:620px;}
.cta-band .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff;}
.cta-band .btn-ghost:hover{background:#fff;color:var(--primary);border-color:#fff;}

/* ============ FOOTER ============ */
.site-footer{background:#0E1B2C;color:#fff;margin-top:0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .text{display:flex;flex-direction:column;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700;}
.footer-brand .brand-sub{font-size:12px;color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;color:#fff;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-links a:hover{color:#8FC0FF;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tag{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;font-size:13px;color:rgba(255,255,255,.72);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);transition:all .18s ease;}
.footer-tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);}
.footer-info p{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:12px;line-height:1.7;}
.footer-info i{color:#8FC0FF;margin-top:5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.58);}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom-links a{font-size:13px;color:rgba(255,255,255,.68);}
.footer-bottom-links a:hover{color:#8FC0FF;}

/* ============ RESPONSIVE ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .topic-grid{grid-template-columns:1fr;}
  .topic-card.tall{grid-row:auto;}
  .topic-card.wide{flex-direction:column;align-items:flex-start;}
  .topic-card.wide .wide-thumb{width:100%;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .timeline::before{display:none;}
  .hud-grid{grid-template-columns:1fr 1fr;}
  .mini-form-wrap{grid-template-columns:1fr;padding:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .search-box{display:none;}
  .nav-burger{display:inline-flex;}
  .brand-sub{display:none;}
  .brand-actions .btn{display:none;}
  .channel-row{height:42px;}
  .section{padding:44px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .stat-grid{grid-template-columns:1fr;gap:14px;}
  .stat-strip{margin-top:-24px;}
  .hud{padding:24px;}
  .hud-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .mini-form{grid-template-columns:1fr;}
  .cta-band{padding:26px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .page-hero .container{padding-top:36px;padding-bottom:42px;}
}
@media (max-width:519px){
  .container{padding:0 18px;}
  .brand-name{font-size:15px;}
  .stat-value strong{font-size:32px;}
  .page-hero h1{font-size:23px;}
  .hero-cta .btn{width:100%;}
  .topic-card{padding:20px;}
}