/* roulang page: index */
:root{
  --bg:#F5F7FB; --surface:#FFFFFF; --surface-alt:#EEF3FA;
  --line:#E4EAF2; --line-strong:#D3DCE8;
  --ink-900:#0E1B33; --ink-700:#26344C; --ink-600:#46536B; --ink-400:#7C8AA0;
  --brand-800:#0B2857; --brand-700:#123B7A; --brand-600:#1A56C4; --brand-500:#2A6BE0; --brand-100:#E8F0FE;
  --accent-600:#E85A1C; --accent-500:#FF6A2B; --accent-100:#FFF0E8;
  --ok-500:#12A87B; --warn-500:#E8A33D; --muted-500:#98A4B8;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --nav-h:72px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
@media (max-width:1024px){ :root{ --nav-h:60px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--bg); color:var(--ink-600);
  font-family:var(--font-sans); font-size:16px; line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; border:0; }
a{ color:var(--brand-600); text-decoration:none; transition:color .2s var(--ease); }
a:hover{ color:var(--brand-700); }
button,input,select,textarea{ font:inherit; color:inherit; }
button{ cursor:pointer; }
h1,h2,h3,h4{ margin:0; color:var(--ink-900); letter-spacing:-.2px; }
p{ margin:0 0 16px; }
ul,ol{ margin:0 0 16px; padding-left:1.2em; }
:focus-visible{ outline:2px solid var(--brand-600); outline-offset:2px; }

.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }
.section{ padding:80px 0; }
.section--alt{ background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.section-head{ max-width:760px; margin-bottom:40px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; letter-spacing:.08em;
  color:var(--brand-600); background:var(--brand-100); border-radius:var(--r-pill);
  padding:4px 12px; margin-bottom:16px; font-weight:600;
}
.section-head h2{ font-size:clamp(24px,3vw,34px); line-height:1.3; font-weight:700; margin-bottom:12px; }
.section-head p{ color:var(--ink-600); font-size:16px; margin:0; }
.section-head h2 + p{ margin-top:12px; }
.num{ font-family:var(--font-num); font-variant-numeric:tabular-nums; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:60; background:var(--surface);
  border-bottom:1px solid var(--line); height:var(--nav-h);
  transition:height .22s var(--ease), box-shadow .22s var(--ease);
}
.site-header.is-scrolled{ box-shadow:var(--shadow-sm); }
.header-inner{ height:100%; display:flex; align-items:center; gap:28px; }
.logo{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.logo-mark{
  width:28px; height:28px; border-radius:var(--r-sm); background:var(--brand-600);
  color:#fff; font-size:15px; font-weight:700; display:flex; align-items:center; justify-content:center;
}
.logo-text{ font-size:18px; font-weight:700; color:var(--ink-900); letter-spacing:-.3px; }
.main-nav{ display:flex; align-items:center; gap:2px; flex:1 1 auto; }
.nav-link{
  position:relative; padding:10px 14px; font-size:15px; color:var(--ink-600);
  border-radius:var(--r-sm); transition:color .2s var(--ease), background .2s var(--ease);
}
.nav-link::after{
  content:""; position:absolute; left:14px; right:14px; bottom:4px; height:2px;
  background:var(--brand-600); border-radius:2px; transform:scaleX(0); transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{ color:var(--brand-600); }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.is-active{ color:var(--brand-600); font-weight:600; }
.nav-link.is-active::after{ transform:scaleX(1); }
.header-actions{ display:flex; align-items:center; gap:12px; flex:0 0 auto; }
.header-badge{
  display:inline-flex; align-items:center; gap:6px; font-size:12px; color:var(--ok-500);
  background:rgba(18,168,123,.1); border-radius:var(--r-pill); padding:4px 10px; white-space:nowrap;
}
.header-badge i{ width:6px; height:6px; border-radius:50%; background:var(--ok-500); display:block; }
.menu-toggle{
  display:none; width:40px; height:40px; border:1px solid var(--line); background:var(--surface);
  border-radius:var(--r-sm); align-items:center; justify-content:center; color:var(--ink-700);
}
.menu-toggle span{ display:block; width:18px; height:1.5px; background:currentColor; position:relative; }
.menu-toggle span::before,.menu-toggle span::after{
  content:""; position:absolute; left:0; width:18px; height:1.5px; background:currentColor;
}
.menu-toggle span::before{ top:-6px; }
.menu-toggle span::after{ top:6px; }

.drawer-mask{
  position:fixed; inset:0; background:rgba(14,27,51,.45); opacity:0; pointer-events:none;
  transition:opacity .22s var(--ease); z-index:80;
}
.drawer-mask.is-open{ opacity:1; pointer-events:auto; }
.drawer{
  position:fixed; top:0; right:0; width:78%; max-width:360px; height:100%; background:var(--surface);
  box-shadow:var(--shadow-lg); transform:translateX(100%); transition:transform .25s var(--ease);
  z-index:90; padding:24px; display:flex; flex-direction:column; gap:8px; overflow-y:auto;
}
.drawer.is-open{ transform:translateX(0); }
.drawer-title{ font-size:13px; color:var(--ink-400); letter-spacing:.06em; margin:8px 0 4px; }
.drawer a.drawer-link{
  display:block; padding:14px 12px; border-radius:var(--r-md); color:var(--ink-700); font-size:16px;
  border:1px solid transparent;
}
.drawer a.drawer-link:hover{ background:var(--surface-alt); border-color:var(--line); }
.drawer a.drawer-link.is-active{ background:var(--brand-100); color:var(--brand-600); font-weight:600; }
.drawer .btn{ margin-top:16px; width:100%; }

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border:1px solid transparent; border-radius:var(--r-md); font-weight:600;
  text-decoration:none; white-space:nowrap; cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease),
             transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn:disabled,.btn[aria-disabled="true"]{ background:var(--line); color:var(--ink-400); cursor:not-allowed; border-color:var(--line); }
.btn-sm{ height:36px; padding:0 16px; font-size:14px; }
.btn-md{ height:44px; padding:0 22px; font-size:15px; }
.btn-lg{ height:48px; padding:0 28px; font-size:16px; }
.btn-primary{ background:var(--accent-500); color:#fff; }
.btn-primary:hover{ background:var(--accent-600); color:#fff; transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn-outline{ background:var(--surface); border-color:var(--brand-600); color:var(--brand-600); }
.btn-outline:hover{ background:var(--brand-100); color:var(--brand-700); }
.btn-ghost{ background:transparent; color:var(--brand-600); padding:0 4px; }
.btn-ghost .arrow{ transition:transform .2s var(--ease); }
.btn-ghost:hover .arrow{ transform:translateX(4px); }

.badge{ display:inline-flex; align-items:center; gap:6px; font-size:12px; line-height:1.5; padding:4px 10px; border-radius:var(--r-pill); font-weight:600; }
.badge-live{ background:rgba(18,168,123,.1); color:var(--ok-500); }
.badge-soon{ background:var(--accent-100); color:var(--accent-600); }
.badge-end{ background:var(--surface-alt); color:var(--muted-500); }
.badge-new{ background:var(--brand-100); color:var(--brand-600); }

/* ---------- countdown bar ---------- */
.countdown-bar{
  position:sticky; top:var(--nav-h); z-index:50; background:var(--brand-800); color:#fff;
  transition:top .22s var(--ease);
}
.countdown-inner{
  min-height:48px; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding-top:6px; padding-bottom:6px; overflow-x:auto;
}
.cd-left{ display:flex; align-items:center; gap:12px; flex:0 0 auto; }
.cd-left .badge-live{ background:rgba(18,168,123,.18); color:#7BE3C3; }
.cd-label{ font-size:13px; color:rgba(255,255,255,.78); }
.cd-timer{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.cd-cell{ display:flex; align-items:baseline; gap:4px; }
.cd-num{ font-family:var(--font-num); font-variant-numeric:tabular-nums; font-size:19px; font-weight:700; color:var(--accent-500); }
.cd-unit{ font-size:11px; color:rgba(255,255,255,.7); }
.cd-right{ flex:0 0 auto; }

/* ---------- hero ---------- */
.hero{
  padding:64px 0 72px;
  background-color:var(--bg);
  background-image:
    linear-gradient(to right, rgba(16,38,74,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16,38,74,.04) 1px, transparent 1px);
  background-size:48px 48px;
  border-bottom:1px solid var(--line);
}
.hero-grid{ display:grid; grid-template-columns:7fr 5fr; gap:48px; align-items:center; }
.hero h1{ font-size:clamp(30px,4vw,48px); line-height:1.25; font-weight:700; letter-spacing:-.5px; margin-bottom:20px; }
.hero-sub{ font-size:clamp(16px,1.6vw,19px); color:var(--ink-600); line-height:1.8; max-width:560px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:16px; margin-top:32px; }
.hero-stats{ display:flex; flex-wrap:wrap; gap:40px; margin-top:40px; padding-top:24px; border-top:1px solid var(--line-strong); }
.hero-stat .num{ display:block; font-size:26px; font-weight:700; color:var(--brand-700); line-height:1.3; }
.hero-stat span{ font-size:12px; color:var(--ink-400); }
.hero-media{ position:relative; }
.hero-media img{ width:100%; aspect-ratio:16/10; object-fit:cover; border-radius:var(--r-xl); box-shadow:var(--shadow-md); }
.hero-float{
  position:absolute; right:16px; top:16px; background:var(--surface); border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg); padding:14px 18px; display:flex; flex-direction:column; gap:6px; max-width:200px;
}
.hero-float strong{ font-size:14px; color:var(--ink-900); }
.hero-float span{ font-size:12px; color:var(--ink-400); }

/* ---------- features ---------- */
.feature-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.feature-item{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:32px; box-shadow:var(--shadow-sm); transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.feature-item:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--brand-100); }
.feature-item.wide{ grid-column:span 2; }
.feature-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.feature-icon{ width:44px; height:44px; border-radius:var(--r-md); background:var(--brand-100); display:flex; align-items:center; justify-content:center; color:var(--brand-600); }
.feature-index{ font-family:var(--font-num); font-size:13px; color:var(--ink-400); letter-spacing:.08em; }
.feature-item h3{ font-size:18px; font-weight:600; margin-bottom:10px; }
.feature-item p{ font-size:15px; color:var(--ink-600); line-height:1.75; margin:0; }

/* ---------- gallery ---------- */
.gallery-grid{ display:grid; grid-template-columns:repeat(4,1fr); grid-auto-rows:190px; gap:16px; }
.g-item{ position:relative; overflow:hidden; border-radius:var(--r-lg); background:var(--surface-alt); }
.g-item.wide{ grid-column:span 2; }
.g-item img{ width:100%; height:100%; object-fit:cover; transition:transform .35s var(--ease); }
.g-item:hover img{ transform:scale(1.03); }
.g-tag{
  position:absolute; left:0; right:0; bottom:0; padding:14px 16px; color:#fff; font-size:13px;
  display:flex; align-items:center; gap:8px;
  background:linear-gradient(to top, rgba(11,40,87,.82), rgba(11,40,87,0));
  opacity:0; transform:translateY(6px); transition:opacity .25s var(--ease), transform .25s var(--ease);
}
.g-item:hover .g-tag{ opacity:1; transform:translateY(0); }
.g-tag em{ font-style:normal; font-size:11px; padding:3px 8px; border-radius:var(--r-pill); background:rgba(255,255,255,.18); }

/* ---------- proof ---------- */
.proof-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-bottom:32px; }
.proof-card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); padding:24px; box-shadow:var(--shadow-sm); }
.proof-card .num{ display:block; font-size:30px; font-weight:700; color:var(--brand-700); line-height:1.2; }
.proof-card span{ font-size:13px; color:var(--ink-400); }
.voice-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.voice{ background:var(--surface-alt); border-radius:var(--r-lg); padding:24px; border:1px solid var(--line); }
.voice-head{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.avatar{ width:40px; height:40px; border-radius:50%; background:var(--brand-600); color:#fff; display:flex; align-items:center; justify-content:center; font-size:15px; font-weight:600; }
.voice-head strong{ display:block; font-size:15px; color:var(--ink-900); }
.voice-head span{ font-size:12px; color:var(--ink-400); }
.voice p{ font-size:14px; color:var(--ink-600); line-height:1.75; margin:0; }

/* ---------- cta panel ---------- */
.cta-panel{
  background:var(--brand-100); border-radius:var(--r-xl); padding:48px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-panel h2{ font-size:clamp(22px,2.6vw,30px); line-height:1.35; margin-bottom:12px; }
.cta-panel p{ margin:0; color:var(--ink-600); max-width:620px; }
.cta-actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* ---------- faq ---------- */
.faq-layout{ display:grid; grid-template-columns:30% 1fr; gap:48px; align-items:start; }
.faq-side{ position:sticky; top:calc(var(--nav-h) + 72px); }
.faq-side h2{ font-size:clamp(22px,2.6vw,30px); line-height:1.35; margin-bottom:12px; }
.faq-side p{ font-size:15px; color:var(--ink-600); }
.faq-item{ background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md); margin-bottom:12px; overflow:hidden; transition:border-color .2s var(--ease), box-shadow .2s var(--ease); }
.faq-item:hover{ border-color:var(--line-strong); }
.faq-item.is-open{ border-color:var(--brand-100); box-shadow:var(--shadow-sm); }
.faq-q{
  width:100%; min-height:56px; background:none; border:0; text-align:left; padding:0 20px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  font-size:16px; font-weight:600; color:var(--ink-900);
}
.faq-icon{ flex:0 0 auto; width:20px; height:20px; color:var(--brand-600); transition:transform .15s var(--ease); }
.faq-item.is-open .faq-icon{ transform:rotate(180deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s var(--ease); }
.faq-a p{ padding:0 20px 18px; margin:0; font-size:15px; line-height:1.85; color:var(--ink-600); }

/* ---------- news / cms ---------- */
.news-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:32px; }
.filter-pills{ display:flex; gap:8px; flex-wrap:wrap; }
.pill{
  height:34px; padding:0 16px; border-radius:var(--r-pill); border:1px solid var(--line);
  background:var(--surface); color:var(--ink-600); font-size:14px;
  transition:all .2s var(--ease);
}
.pill:hover{ border-color:var(--brand-600); color:var(--brand-600); }
.pill.is-active{ background:var(--brand-100); border-color:var(--brand-100); color:var(--brand-600); font-weight:600; }
.post-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.post-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden; box-shadow:var(--shadow-sm); display:flex; flex-direction:column;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.post-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--brand-100); }
.post-card.is-hidden{ display:none; }
.post-thumb{ aspect-ratio:16/10; overflow:hidden; background:var(--surface-alt); }
.post-thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .35s var(--ease); }
.post-card:hover .post-thumb img{ transform:scale(1.03); }
.post-body{ padding:24px; display:flex; flex-direction:column; gap:12px; flex:1 1 auto; }
.post-meta{ display:flex; align-items:center; gap:12px; font-size:12px; color:var(--ink-400); }
.post-title{ font-size:17px; font-weight:600; line-height:1.5; margin:0; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.post-title a{ color:var(--ink-900); }
.post-title a:hover{ color:var(--brand-600); }
.post-excerpt{ font-size:14px; line-height:1.75; color:var(--ink-600); margin:0; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }
.post-more{ margin-top:auto; font-size:14px; font-weight:600; color:var(--brand-600); display:inline-flex; align-items:center; gap:6px; }
.post-more .arrow{ transition:transform .2s var(--ease); }
.post-more:hover .arrow{ transform:translateX(4px); }
.empty-state{
  grid-column:1 / -1; background:var(--surface); border:1px dashed var(--line-strong);
  border-radius:var(--r-lg); padding:56px 24px; text-align:center;
}
.empty-state svg{ width:120px; height:120px; margin:0 auto 20px; color:var(--line-strong); }
.empty-state p{ font-size:15px; color:var(--ink-600); margin:0 0 20px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--brand-800); color:rgba(255,255,255,.78); margin-top:0; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; padding:64px 0 40px; }
.footer-brand .logo-text{ color:#fff; }
.footer-brand p{ font-size:14px; line-height:1.8; color:rgba(255,255,255,.7); margin:16px 0 20px; max-width:320px; }
.footer-col h4{ color:#fff; font-size:15px; margin-bottom:16px; }
.footer-col a{ display:block; font-size:14px; color:rgba(255,255,255,.72); padding:5px 0; }
.footer-col a:hover{ color:#fff; text-decoration:underline; }
.footer-col p{ font-size:14px; color:rgba(255,255,255,.72); margin:0 0 8px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:20px 0;
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-size:12px; color:rgba(255,255,255,.6);
}

/* ---------- contact strip ---------- */
.contact-strip{
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:32px; box-shadow:var(--shadow-sm);
}
.contact-strip .left{ display:flex; align-items:center; gap:16px; }
.contact-strip h3{ font-size:17px; margin-bottom:6px; }
.contact-strip p{ margin:0; font-size:14px; color:var(--ink-400); }

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{ padding:56px 0; }
  .hero{ padding:48px 0 56px; }
  .hero-grid{ grid-template-columns:1fr; gap:32px; }
  .hero-media img{ aspect-ratio:16/10; }
  .feature-grid{ grid-template-columns:repeat(2,1fr); }
  .feature-item.wide{ grid-column:span 2; }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); grid-auto-rows:180px; }
  .g-item.wide{ grid-column:span 2; }
  .proof-grid{ grid-template-columns:repeat(2,1fr); }
  .voice-grid{ grid-template-columns:1fr 1fr; }
  .faq-layout{ grid-template-columns:1fr; gap:32px; }
  .faq-side{ position:static; }
  .post-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; padding:48px 0 32px; }
  .main-nav{ display:none; }
  .menu-toggle{ display:flex; }
  .header-badge{ display:none; }
}
@media (max-width:768px){
  .container{ padding:0 16px; }
  .section{ padding:40px 0; }
  .hero-adjust, .hero{ padding:40px 0 48px; }
  .hero-stats{ gap:24px; margin-top:32px; }
  .hero-stat{ min-width:96px; }
  .cta-panel{ padding:32px 24px; border-radius:var(--r-lg); }
  .contact-strip{ padding:24px; }
  .countdown-inner{ gap:12px; }
  .countdown-inner .cd-label{ display:none; }
  .voice-grid{ grid-template-columns:1fr; }
  .logo-text{ font-size:16px; }
}
@media (max-width:560px){
  .feature-grid{ grid-template-columns:1fr; }
  .feature-item.wide{ grid-column:span 1; }
  .gallery-grid{ grid-template-columns:1fr; grid-auto-rows:200px; }
  .g-item.wide{ grid-column:span 1; }
  .proof-grid{ grid-template-columns:1fr; }
  .post-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero-float{ max-width:160px; right:12px; top:12px; padding:12px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .cta-actions .btn{ width:100%; }
}
@media (max-width:375px){
  body{ font-size:15px; }
  .cd-num{ font-size:17px; }
  .header-actions .btn{ display:none; }
}
@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; animation:none !important; }
  .g-item:hover img, .post-card:hover .post-thumb img{ transform:none; }
}

/* roulang page: article */
:root{
  --bg:#F5F7FB;--surface:#FFFFFF;--surface-alt:#EEF3FA;
  --line:#E4EAF2;--line-strong:#D3DCE8;
  --ink-900:#0E1B33;--ink-700:#26344C;--ink-600:#46536B;--ink-400:#7C8AA0;
  --brand-800:#0B2857;--brand-700:#123B7A;--brand-600:#1A56C4;--brand-500:#2A6BE0;--brand-100:#E8F0FE;
  --accent-600:#E85A1C;--accent-500:#FF6A2B;--accent-100:#FFF0E8;
  --ok-500:#12A87B;--warn-500:#E8A33D;--muted-500:#98A4B8;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-700)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.3px}
h1{font-size:clamp(28px,3.6vw,42px);line-height:1.28}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32}
h3{font-size:19px;line-height:1.45;font-weight:600}
h4{font-size:16px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:680px;margin-bottom:32px}
.section-head p{color:var(--ink-400);font-size:15px;margin:10px 0 0}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--brand-600);font-weight:600;margin-bottom:10px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700}
.logo-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand-600);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;line-height:1;font-weight:700;
}
.logo-text{font-size:18px;letter-spacing:-.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;flex:1}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-600);padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-700);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,27,51,.45);z-index:70;opacity:0;transition:opacity .22s var(--ease)}
.drawer-mask.is-open{opacity:1}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:78%;max-width:340px;background:var(--surface);z-index:80;
  transform:translateX(100%);transition:transform .24s var(--ease);box-shadow:var(--shadow-lg);
  padding:24px;display:flex;flex-direction:column;gap:6px;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:36px;height:36px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface-alt);cursor:pointer;color:var(--ink-700);font-size:18px;line-height:1}
.nav-drawer a.drawer-link{
  display:block;padding:12px 14px;border-radius:var(--r-md);color:var(--ink-700);font-size:16px;font-weight:500;
}
.nav-drawer a.drawer-link:hover{background:var(--surface-alt);color:var(--brand-600)}
.nav-drawer a.drawer-link.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.drawer-cta{margin-top:auto}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap;
}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:transparent;color:var(--brand-600);padding:0 8px;height:auto;font-weight:600}
.btn-ghost .arrow{transition:transform .2s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:5px 10px;border-radius:var(--r-pill);font-weight:600}
.badge-live{background:rgba(18,168,123,.1);color:var(--ok-500)}
.badge-soon{background:var(--accent-100);color:var(--accent-600)}
.badge-new{background:var(--brand-100);color:var(--brand-600)}
.badge-muted{background:var(--surface-alt);color:var(--muted-500)}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600}
.tag-blue{background:var(--brand-100);color:var(--brand-600)}
.tag-orange{background:var(--accent-100);color:var(--accent-600)}
.tag-green{background:rgba(18,168,123,.1);color:var(--ok-500)}

/* ---------- breadcrumb ---------- */
.breadcrumb-wrap{padding:20px 0 0}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-400);padding:0}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb [aria-current="page"]{color:var(--ink-400);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb-sep{color:var(--line-strong)}

/* ---------- article head ---------- */
.article-head{padding:20px 0 0;max-width:860px}
.article-head h1{margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--ink-400)}
.article-meta .meta-num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);display:inline-block}
.head-divider{height:1px;background:var(--line);margin:24px 0 0;border:0}
.article-cover{margin:28px 0 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;gap:48px;justify-content:center;
  align-items:start;padding:40px 0 0;
}
.article-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:40px}

/* ---------- rich text ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--ink-600);word-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);line-height:1.4;color:var(--ink-900);
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--brand-600);scroll-margin-top:100px;
}
.article-body h3{font-size:19px;color:var(--ink-700);margin:28px 0 12px;scroll-margin-top:100px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;line-height:1.85}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--brand-600);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-100);border-left:4px solid var(--brand-600);
  border-radius:var(--r-sm);color:var(--ink-700);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:24px auto;height:auto}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--surface-alt);color:var(--ink-700);font-weight:600}
.article-body code{background:var(--surface-alt);padding:2px 6px;border-radius:6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:14px;color:var(--ink-700)}
.article-body pre{background:var(--surface-alt);border:1px solid var(--line);padding:16px;border-radius:var(--r-md);overflow-x:auto;margin:0 0 20px}
.article-body pre code{background:transparent;padding:0}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:20px}
.side-card h3{font-size:15px;color:var(--ink-900);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand-600);display:inline-block}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-list a{display:block;padding:8px 10px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-600);line-height:1.6}
.toc-list a:hover{background:var(--surface-alt);color:var(--brand-600)}
.toc-list a.is-current{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.toc-empty{font-size:14px;color:var(--ink-400);margin:0}
.channel-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.channel-list a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--r-md);font-size:14px;color:var(--ink-700);border:1px solid transparent}
.channel-list a:hover{background:var(--surface-alt);border-color:var(--line);color:var(--brand-600)}
.channel-list .num{font-family:var(--font-num);font-size:12px;color:var(--ink-400)}
.cta-card{background:var(--brand-100);border:1px solid #D6E4FC;border-radius:var(--r-lg);padding:24px}
.cta-card h3{font-size:17px;margin-bottom:8px}
.cta-card p{font-size:14px;color:var(--ink-600);margin-bottom:16px}
.cta-card .btn{width:100%}

/* ---------- empty ---------- */
.empty-state{text-align:center;padding:56px 24px;background:var(--surface-alt);border-radius:var(--r-lg);border:1px dashed var(--line-strong)}
.empty-state .empty-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:var(--brand-100);display:flex;align-items:center;justify-content:center;color:var(--brand-600)}
.empty-title{font-size:20px;font-weight:700;color:var(--ink-900);margin-bottom:8px}
.empty-desc{font-size:15px;color:var(--ink-400);margin-bottom:24px}
.empty-state .btn{margin:0 auto}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D6E4FC}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.related-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.related-body h3{font-size:17px;color:var(--ink-900)}
.related-body p{font-size:14px;line-height:1.75;color:var(--ink-600);margin:0;flex:1}
.ghost-link{font-size:14px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .ghost-link .arrow{transform:translateX(4px)}
.ghost-link .arrow{transition:transform .2s var(--ease)}

/* ---------- prev / next ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.pager-item{
  display:flex;align-items:center;gap:14px;padding:20px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);transition:all .2s var(--ease);
}
.pager-item:hover{border-color:#D6E4FC;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.pager-item.next{justify-content:flex-end;text-align:right}
.pager-arrow{font-size:18px;color:var(--brand-600);line-height:1}
.pager-label{font-size:12px;color:var(--ink-400);letter-spacing:.08em}
.pager-title{font-size:16px;font-weight:600;color:var(--ink-900);margin-top:2px}
.back-row{text-align:center;margin-top:24px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:80px}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:var(--brand-500)}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;padding:5px 0}
.footer-col p{font-size:14px;line-height:1.8;margin:0 0 8px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0;
  display:flex;justify-content:space-between;gap:12px;font-size:12px;color:rgba(255,255,255,.6);
}

@media (max-width:1280px){
  .article-layout{gap:36px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
  .section{padding:56px 0}
  .article-layout{grid-template-columns:1fr;gap:28px}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .article-card{padding:24px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:32px}
  .breadcrumb [aria-current="page"]{max-width:220px}
  .pager{grid-template-columns:1fr}
  .pager-item.next{justify-content:flex-start;text-align:left;flex-direction:row-reverse}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .header-actions .badge{display:none}
  .section{padding:40px 0}
  .related-grid{grid-template-columns:1fr}
  .article-head h1{font-size:24px}
  .article-cover img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:375px){
  .container{padding:0 14px}
  .article-card{padding:18px}
  .btn{padding:0 18px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#F5F7FB; --surface:#FFFFFF; --surface-alt:#EEF3FA;
  --line:#E4EAF2; --line-strong:#D3DCE8;
  --ink-900:#0E1B33; --ink-700:#26344C; --ink-600:#46536B; --ink-400:#7C8AA0;
  --brand-800:#0B2857; --brand-700:#123B7A; --brand-600:#1A56C4; --brand-500:#2A6BE0; --brand-100:#E8F0FE;
  --accent-600:#E85A1C; --accent-500:#FF6A2B; --accent-100:#FFF0E8;
  --ok-500:#12A87B; --warn-500:#E8A33D; --muted-500:#98A4B8; --danger:#D93F3F;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:80px;
  --header-h:72px; --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--bg); color:var(--ink-600);
  font-family:var(--font-sans); font-size:16px; line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0;}
ul,ol{padding:0; list-style:none;}
a{color:inherit; text-decoration:none; transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
img{display:block; max-width:100%; height:auto;}
button{font-family:inherit; font-size:inherit; cursor:pointer;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-600); outline-offset:2px; border-radius:4px;}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 24px;}
.num{font-family:var(--font-num); font-variant-numeric:tabular-nums;}

/* ============ 顶部状态条 ============ */
.topbar{
  position:sticky; top:var(--header-h); z-index:55;
  background:var(--brand-800); color:#fff; min-height:48px;
}
.topbar-inner{display:flex; align-items:center; gap:16px; min-height:48px; padding-top:6px; padding-bottom:6px;}
.topbar-text{font-size:14px; color:rgba(255,255,255,.82); white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.countdown{display:flex; align-items:baseline; gap:10px; margin-left:auto;}
.cd-item{display:flex; align-items:baseline; gap:3px;}
.cd-num{
  font-family:var(--font-num); font-variant-numeric:tabular-nums;
  font-size:20px; font-weight:700; color:var(--accent-500); letter-spacing:.5px;
}
.cd-unit{font-size:12px; color:rgba(255,255,255,.6);}
.topbar-cta{flex:0 0 auto;}

/* ============ 导航 ============ */
.site-header{
  position:sticky; top:0; z-index:60; background:var(--surface);
  border-bottom:1px solid var(--line); height:var(--header-h);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.header-inner{display:flex; align-items:center; gap:24px; height:var(--header-h);}
.logo{display:inline-flex; align-items:center; gap:10px; flex:0 0 auto;}
.logo-mark{
  width:28px; height:28px; border-radius:9px; background:var(--brand-600); color:#fff;
  display:grid; place-items:center; font-size:15px; font-weight:700; letter-spacing:0;
}
.logo-text{font-size:18px; font-weight:700; color:var(--ink-900); letter-spacing:-.2px;}
.main-nav{display:flex; align-items:center; gap:4px; margin-left:12px;}
.nav-link{
  position:relative; padding:8px 12px; font-size:15px; color:var(--ink-600);
  border-radius:var(--r-sm); white-space:nowrap;
}
.nav-link::after{
  content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px;
  background:var(--brand-600); border-radius:2px; transform:scaleX(0); transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600); background:var(--brand-100);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600); font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex; align-items:center; gap:12px; margin-left:auto;}
.header-badge{flex:0 0 auto;}
.nav-toggle{
  display:none; width:40px; height:40px; border:1px solid var(--line); background:var(--surface);
  border-radius:var(--r-sm); padding:0; place-items:center; gap:4px;
}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--ink-700); border-radius:2px;}
.drawer,.drawer-mask{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 28px; border-radius:var(--r-md); border:1px solid transparent;
  font-size:15px; font-weight:600; line-height:1; white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--accent-500); color:#fff; box-shadow:0 4px 14px rgba(255,106,43,.24);}
.btn-primary:hover{background:var(--accent-600); transform:translateY(-2px); box-shadow:var(--shadow-md);}
.btn-outline{background:var(--surface); color:var(--brand-600); border-color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100); transform:translateY(-2px);}
.btn-ghost{background:transparent; color:var(--brand-600); padding:0 4px; height:auto;}
.btn-ghost .arrow{transition:transform .2s var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:36px; padding:0 16px; font-size:14px; border-radius:var(--r-sm);}
.btn-lg{height:52px; padding:0 32px; font-size:16px;}
.btn:disabled,.btn.is-disabled{background:var(--line); color:var(--ink-400); border-color:var(--line); box-shadow:none; cursor:not-allowed; transform:none;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex; align-items:center; gap:6px; padding:4px 10px; border-radius:var(--r-pill);
  font-size:12px; line-height:1.5; font-weight:600; white-space:nowrap;
}
.badge-live{background:rgba(18,168,123,.1); color:var(--ok-500);}
.badge-soon{background:var(--accent-100); color:var(--accent-600);}
.badge-end{background:var(--surface-alt); color:var(--muted-500);}
.badge-new{background:var(--brand-100); color:var(--brand-600);}

/* ============ 首屏横幅 ============ */
.page-hero{
  background:var(--brand-800); color:#fff; position:relative; overflow:hidden;
  padding:48px 0 44px;
}
.page-hero::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 40px);
}
.page-hero .container{position:relative; z-index:1;}
.breadcrumb{display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:rgba(255,255,255,.62);}
.breadcrumb li{display:inline-flex; align-items:center; gap:8px;}
.breadcrumb li+li::before{content:""; width:6px; height:6px; border-top:1px solid rgba(255,255,255,.4); border-right:1px solid rgba(255,255,255,.4); transform:rotate(45deg);}
.breadcrumb a:hover{color:#fff; text-decoration:underline;}
.hero-title{
  margin-top:20px; font-size:clamp(30px,4vw,48px); line-height:1.25; font-weight:700;
  letter-spacing:-.5px; color:#fff; max-width:900px;
}
.hero-summary{margin-top:16px; max-width:680px; font-size:17px; line-height:1.8; color:rgba(255,255,255,.76);}
.hero-tags{display:flex; flex-wrap:wrap; gap:10px; margin-top:24px;}
.hero-stats{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin-top:36px;
  border-top:1px solid rgba(255,255,255,.12); padding-top:24px; max-width:760px;
}
.stat-num{
  display:block; font-family:var(--font-num); font-variant-numeric:tabular-nums;
  font-size:28px; font-weight:700; color:#fff; line-height:1.2;
}
.stat-num em{font-style:normal; font-size:14px; font-weight:600; color:rgba(255,255,255,.6); margin-left:4px;}
.stat-label{display:block; margin-top:6px; font-size:12px; color:rgba(255,255,255,.58);}

/* ============ 板块 ============ */
.section{padding:80px 0;}
.section-alt{background:var(--surface-alt);}
.section-head{max-width:760px; margin-bottom:40px;}
.eyebrow{
  display:inline-block; font-size:12px; font-weight:600; letter-spacing:1px;
  color:var(--brand-600); background:var(--brand-100); padding:4px 10px; border-radius:var(--r-pill);
}
.section-title{
  margin-top:14px; font-size:clamp(24px,3vw,34px); line-height:1.3; font-weight:700;
  color:var(--ink-900); letter-spacing:-.3px;
}
.section-desc{margin-top:12px; font-size:16px; line-height:1.8; color:var(--ink-600);}

/* ============ 赛程：时间轴 + 卡片 ============ */
.schedule-layout{display:grid; grid-template-columns:340px minmax(0,1fr); gap:48px; align-items:start;}
.timeline{position:relative; padding-left:0;}
.timeline::before{content:""; position:absolute; left:17px; top:10px; bottom:26px; width:2px; background:var(--line);}
.timeline-item{position:relative; display:flex; gap:16px; padding-bottom:28px;}
.timeline-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative; z-index:1; flex:0 0 36px; height:36px; border-radius:var(--r-pill);
  background:var(--surface); border:1px solid var(--line-strong); color:var(--brand-600);
  display:grid; place-items:center; font-family:var(--font-num); font-size:13px; font-weight:700;
}
.timeline-item.is-now .tl-num{background:var(--brand-600); border-color:var(--brand-600); color:#fff;}
.tl-body{padding-top:2px;}
.tl-title{font-size:17px; font-weight:600; color:var(--ink-900);}
.tl-time{
  margin-top:4px; font-family:var(--font-num); font-variant-numeric:tabular-nums;
  font-size:13px; color:var(--brand-600); font-weight:600;
}
.tl-text{margin-top:6px; font-size:14px; line-height:1.75; color:var(--ink-400);}
.event-grid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px;}
.event-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:24px; box-shadow:var(--shadow-sm); display:flex; flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.event-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--brand-100);}
.event-top{display:flex; align-items:center; justify-content:space-between; gap:12px;}
.event-num{font-family:var(--font-num); font-size:12px; color:var(--ink-400); letter-spacing:.5px;}
.event-title{margin-top:16px; font-size:18px; font-weight:600; color:var(--ink-900); line-height:1.45;}
.event-text{margin-top:10px; font-size:14px; line-height:1.75; color:var(--ink-600);}
.event-meta{
  margin-top:16px; padding-top:14px; border-top:1px solid var(--line);
  font-size:13px; color:var(--ink-400); font-family:var(--font-num); font-variant-numeric:tabular-nums;
}
.event-card .btn{margin-top:16px; align-self:flex-start;}

/* ============ 看点不对称栅格 ============ */
.feature-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px;}
.feature-card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  padding:24px; box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.feature-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--brand-100);}
.feature-card.is-wide{grid-column:span 2; display:grid; grid-template-columns:1fr 1fr; gap:24px; padding:0; overflow:hidden;}
.feature-card.is-wide .feature-body{padding:28px 28px 28px 0;}
.feature-media{position:relative; margin:0; overflow:hidden;}
.feature-media img{width:100%; height:100%; object-fit:cover; aspect-ratio:16/10;}
.feature-card.is-wide .feature-media{border-radius:0;}
.feature-num{
  font-family:var(--font-num); font-size:13px; font-weight:700; color:var(--brand-600);
  letter-spacing:1px;
}
.feature-title{margin-top:14px; font-size:18px; font-weight:600; color:var(--ink-900); line-height:1.45;}
.feature-text{margin-top:10px; font-size:14px; line-height:1.8; color:var(--ink-600);}
.feature-tag{margin-top:16px; display:inline-flex;}

/* ============ 步骤条 ============ */
.steps{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:24px; position:relative;}
.step{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); padding:24px; box-shadow:var(--shadow-sm); position:relative;}
.step-num{
  display:inline-grid; place-items:center; width:36px; height:36px; border-radius:var(--r-pill);
  background:var(--brand-100); color:var(--brand-600); font-family:var(--font-num); font-weight:700; font-size:14px;
}
.step-title{margin-top:16px; font-size:17px; font-weight:600; color:var(--ink-900);}
.step-text{margin-top:8px; font-size:14px; line-height:1.75; color:var(--ink-600);}

/* ============ 规则列表 ============ */
.rule-list{border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; background:var(--surface); box-shadow:var(--shadow-sm);}
.rule-row{
  display:grid; grid-template-columns:220px minmax(0,1fr); gap:24px; padding:22px 24px;
  border-bottom:1px solid var(--line); transition:background-color .2s var(--ease);
}
.rule-row:last-child{border-bottom:0;}
.rule-row:nth-child(odd){background:var(--surface-alt);}
.rule-row:hover{background:var(--brand-100);}
.rule-key{font-size:16px; font-weight:600; color:var(--ink-900); display:flex; align-items:center; gap:10px;}
.rule-key::before{content:""; width:4px; height:16px; border-radius:2px; background:var(--brand-600);}
.rule-val{font-size:15px; line-height:1.8; color:var(--ink-600);}

/* ============ FAQ ============ */
.faq-layout{display:grid; grid-template-columns:30% minmax(0,1fr); gap:48px; align-items:start;}
.faq-aside h2{font-size:clamp(22px,2.6vw,30px); line-height:1.35; font-weight:700; color:var(--ink-900);}
.faq-aside p{margin-top:12px; font-size:15px; line-height:1.8; color:var(--ink-600);}
.faq-list{background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg); box-shadow:var(--shadow-sm); overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%; min-height:56px; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:16px 24px; background:transparent; border:0; text-align:left;
}
.faq-q h3{font-size:16px; font-weight:600; color:var(--ink-900); line-height:1.5;}
.faq-icon{
  flex:0 0 20px; width:20px; height:20px; position:relative; transition:transform .18s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:""; position:absolute; background:var(--brand-600); border-radius:2px;
}
.faq-icon::before{left:0; top:9px; width:20px; height:2px;}
.faq-icon::after{left:9px; top:0; width:2px; height:20px; transition:opacity .18s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0; overflow:hidden; transition:max-height .25s var(--ease);}
.faq-a p{padding:0 24px 20px; font-size:15px; line-height:1.85; color:var(--ink-600);}
.faq-item:hover .faq-q{background:var(--surface-alt);}

/* ============ CTA 面板 ============ */
.cta-panel{
  background:var(--brand-100); border-radius:var(--r-xl); padding:40px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
  border:1px solid #D9E5FB;
}
.cta-copy h2{font-size:clamp(20px,2.4vw,26px); font-weight:700; color:var(--ink-900); line-height:1.4;}
.cta-copy p{margin-top:10px; font-size:15px; line-height:1.8; color:var(--ink-600); max-width:620px;}
.cta-actions{display:flex; gap:12px; flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-800); color:rgba(255,255,255,.72); margin-top:0; padding-top:56px;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; padding-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:var(--brand-600);}
.footer-brand p{font-size:14px; line-height:1.8; color:rgba(255,255,255,.66); max-width:320px;}
.footer-brand .badge{margin-top:16px;}
.footer-col h4{font-size:14px; font-weight:600; color:#fff; margin-bottom:16px;}
.footer-col a,.footer-col p{display:block; font-size:14px; line-height:2; color:rgba(255,255,255,.68);}
.footer-col a:hover{color:#fff; text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:20px 0 28px;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-size:12px; color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .schedule-layout{grid-template-columns:300px minmax(0,1fr); gap:32px;}
  .footer-grid{gap:32px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .header-actions .btn-primary{display:none;}
  .drawer{
    display:block; position:fixed; top:0; right:0; z-index:90; width:78%; max-width:360px; height:100%;
    background:var(--surface); box-shadow:var(--shadow-lg); padding:24px;
    transform:translateX(100%); transition:transform .25s var(--ease);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:24px;}
  .drawer-close{width:36px; height:36px; border:1px solid var(--line); border-radius:var(--r-sm); background:var(--surface); font-size:18px; color:var(--ink-600); line-height:1;}
  .drawer-nav a{display:block; padding:14px 12px; font-size:16px; color:var(--ink-700); border-radius:var(--r-md);}
  .drawer-nav a:hover,.drawer-nav a.is-active{background:var(--brand-100); color:var(--brand-600);}
  .drawer .btn{width:100%; margin-top:24px;}
  .drawer-mask{display:block; position:fixed; inset:0; background:rgba(14,27,51,.45); z-index:80; opacity:0; pointer-events:none; transition:opacity .25s var(--ease);}
  .drawer-mask.is-open{opacity:1; pointer-events:auto;}
  .section{padding:56px 0;}
  .schedule-layout{grid-template-columns:minmax(0,1fr);}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-card.is-wide{grid-column:span 2;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:minmax(0,1fr); gap:24px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .topbar-text{display:none;}
  .page-hero{padding:36px 0 32px;}
  .hero-summary{font-size:16px;}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px;}
  .stat-num{font-size:22px;}
  .event-grid{grid-template-columns:minmax(0,1fr);}
  .feature-grid{grid-template-columns:minmax(0,1fr);}
  .feature-card.is-wide{grid-column:span 1; grid-template-columns:minmax(0,1fr);}
  .feature-card.is-wide .feature-body{padding:0 24px 24px;}
  .steps{grid-template-columns:minmax(0,1fr);}
  .steps::before{content:""; position:absolute; left:41px; top:16px; bottom:16px; width:2px; background:var(--line);}
  .step{margin-left:0;}
  .rule-row{grid-template-columns:minmax(0,1fr); gap:8px; padding:20px;}
  .cta-panel{padding:28px; flex-direction:column; align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .section{padding:40px 0;}
  .footer-grid{grid-template-columns:minmax(0,1fr); gap:28px;}
}
@media (max-width:560px){
  :root{--header-h:60px;}
  .container{padding:0 16px;}
  .logo-text{font-size:16px;}
  .cd-num{font-size:17px;}
  .countdown{gap:8px;}
  .topbar-inner{gap:10px;}
  .hero-title{font-size:28px;}
  .hero-stats{grid-template-columns:minmax(0,1fr);}
  .hero-stats .stat{display:flex; align-items:baseline; gap:10px;}
  .stat-num{font-size:20px;}
  .stat-label{margin-top:0;}
  .section-title{font-size:23px;}
  .event-card,.feature-card,.step{padding:20px;}
  .faq-q{padding:14px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:375px){
  .btn{padding:0 20px; font-size:14px;}
  .btn-lg{height:48px; padding:0 22px;}
  .hero-summary{font-size:15px;}
  .topbar-cta{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}

/* roulang page: category2 */
:root{
  --bg:#F5F7FB; --surface:#FFFFFF; --surface-alt:#EEF3FA;
  --line:#E4EAF2; --line-strong:#D3DCE8;
  --ink-900:#0E1B33; --ink-700:#26344C; --ink-600:#46536B; --ink-400:#7C8AA0;
  --brand-800:#0B2857; --brand-700:#123B7A; --brand-600:#1A56C4; --brand-500:#2A6BE0; --brand-100:#E8F0FE;
  --accent-600:#E85A1C; --accent-500:#FF6A2B; --accent-100:#FFF0E8;
  --ok-500:#12A87B; --warn-500:#E8A33D; --muted-500:#98A4B8;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink-600);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.5px}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
h3{font-size:20px;line-height:1.45;font-weight:600}
h4{font-size:17px;line-height:1.5;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-md);
  font-weight:600;font-size:15px;line-height:1;white-space:nowrap;
  padding:0 26px;height:48px;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.25)}
.btn-primary:hover{background:var(--accent-600);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline:hover{background:var(--brand-100)}
.btn-ghost{background:transparent;color:var(--brand-600);padding:0;height:auto}
.btn-ghost .arw{transition:transform .2s var(--ease)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-md{height:44px;padding:0 22px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{background:var(--line);color:var(--ink-400);cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 10px;font-size:12px;line-height:1.5;font-weight:600}
.badge-live{background:rgba(18,168,123,.1);color:var(--ok-500)}
.badge-soon{background:var(--accent-100);color:var(--accent-600)}
.badge-end{background:var(--surface-alt);color:var(--muted-500)}
.badge-new{background:var(--brand-100);color:var(--brand-600)}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(160deg,var(--brand-600),var(--brand-800));
  color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.logo-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.3px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-600);padding:8px 12px;border-radius:var(--r-sm);
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--surface);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,27,51,.45);opacity:0;visibility:hidden;transition:.22s var(--ease);z-index:70}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:78%;max-width:340px;background:var(--surface);
  box-shadow:var(--shadow-lg);transform:translateX(100%);transition:transform .24s var(--ease);
  z-index:71;padding:24px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);font-size:18px;color:var(--ink-600)}
.drawer .nav-link{display:block;padding:14px 12px;border-radius:var(--r-md);font-size:16px}
.drawer .nav-link.is-active{background:var(--brand-100)}
.drawer .nav-link::after{display:none}
.drawer .btn{margin-top:16px;width:100%}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;background:var(--brand-800);color:#fff;overflow:hidden;
}
.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:32px 32px;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(42,107,224,.45),transparent 68%);
}
.page-hero .container{position:relative;z-index:1;padding-top:48px;padding-bottom:56px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.5}
.crumb .cur{color:rgba(255,255,255,.55)}
.page-hero h1{color:#fff;max-width:760px}
.page-hero .lead{margin-top:16px;max-width:660px;font-size:16px;color:rgba(255,255,255,.78)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(255,255,255,.1);color:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.16);
}
.tag-ok{background:rgba(18,168,123,.18);color:#7EE2C0;border-color:rgba(18,168,123,.32)}

/* ---------- 主体布局 ---------- */
.section{padding:64px 0}
.section-tight{padding:48px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.5px;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}
.section-head p{margin-top:12px;color:var(--ink-600)}

.layout-split{display:grid;grid-template-columns:264px minmax(0,1fr);gap:32px;align-items:start}

/* ---------- 侧栏筛选 ---------- */
.filter-panel{
  position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:24px;
}
.filter-panel h3{font-size:16px;margin-bottom:16px}
.filter-list li+li{margin-top:4px}
.filter-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-600);
  border-left:3px solid transparent;transition:.18s var(--ease);
}
.filter-link:hover{background:var(--surface-alt);color:var(--brand-600)}
.filter-link.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600)}
.filter-link .count{font-size:12px;color:var(--ink-400)}
.filter-note{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.7;
}

/* ---------- 内容区工具条 ---------- */
.content-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:16px 24px;box-shadow:var(--shadow-sm);margin-bottom:24px;
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--ink-600);
  background:var(--surface-alt);border:1px solid transparent;transition:.18s var(--ease);
}
.chip:hover{border-color:var(--line-strong);color:var(--brand-600)}
.chip.is-active{background:var(--brand-100);color:var(--brand-600);font-weight:600}
.sort-note{font-size:13px;color:var(--ink-400)}

/* ---------- 图墙 ---------- */
.game-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.game-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.thumb{position:relative;overflow:hidden;background:var(--surface-alt);aspect-ratio:16/10}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.game-card:hover .thumb img{transform:scale(1.03)}
.thumb .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);backdrop-filter:none}
.thumb .badge.badge-live{color:var(--ok-500)}
.thumb .badge.badge-soon{color:var(--accent-600)}
.thumb .badge.badge-end{color:var(--muted-500)}
.thumb .badge.badge-new{color:var(--brand-600)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .desc{font-size:14px;line-height:1.75;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-400)}
.card-meta a{color:var(--brand-600);font-weight:600}
.card-meta a:hover{text-decoration:underline}
.game-card.feature{grid-column:span 2;flex-direction:row}
.game-card.feature .thumb{width:52%;flex-shrink:0;aspect-ratio:auto}
.game-card.feature .card-body{padding:28px}
.game-card.feature .card-body h3{font-size:22px;-webkit-line-clamp:2}
.game-card.feature .card-body .desc{-webkit-line-clamp:4;font-size:15px}

/* ---------- 分页 ---------- */
.pagination{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:40px}
.page-link{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-md);font-size:14px;color:var(--ink-600);
  background:var(--surface);transition:.18s var(--ease);
}
.page-link:hover{border-color:var(--brand-600);color:var(--brand-600)}
.page-link.is-current{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}

/* ---------- 玩法要点 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-sm);transition:.22s var(--ease);
}
.point-card:hover{box-shadow:var(--shadow-md);border-color:var(--brand-100)}
.point-card.wide{grid-column:span 2;display:flex;gap:28px;align-items:center;background:var(--surface-alt)}
.point-num{
  font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand-600);
  letter-spacing:-1px;line-height:1;margin-bottom:14px;
}
.point-card h3{margin-bottom:10px}
.point-card p{font-size:14px;color:var(--ink-600);line-height:1.75}
.point-card.wide .point-num{margin-bottom:0;font-size:44px}
.point-visual{
  flex:0 0 190px;height:120px;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);
}
.point-visual img{width:100%;height:100%;object-fit:cover}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:32px;
}
.stat{background:var(--surface);padding:26px 24px}
.stat .v{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--ink-900);line-height:1.1;letter-spacing:-.5px}
.stat .v small{font-size:14px;font-weight:600;color:var(--brand-600);margin-left:4px}
.stat .k{font-size:13px;color:var(--ink-400);margin-top:8px}

/* ---------- 评价 ---------- */
.voice-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}
.voice{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-sm);
}
.voice p{font-size:15px;line-height:1.85;color:var(--ink-700)}
.voice-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0;
}
.voice-user .who{font-size:14px;font-weight:600;color:var(--ink-900)}
.voice-user .when{font-size:12.5px;color:var(--ink-400)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start}
.faq-title h2{margin-bottom:12px}
.faq-title p{font-size:14px;color:var(--ink-400)}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--brand-100);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;min-height:56px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-q .arw{color:var(--brand-600);font-size:14px;transition:transform .18s var(--ease);flex-shrink:0}
.faq-item.is-open .faq-q .arw{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand-100);border-radius:var(--r-xl);padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-panel h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px}
.cta-panel p{font-size:15px;color:var(--ink-700);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 空态 ---------- */
.empty{
  background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty .ico{width:64px;height:64px;margin:0 auto 16px;border:2px solid var(--line-strong);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ink-400);font-size:24px}
.empty p{color:var(--ink-400);margin-bottom:16px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:16px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 16px;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a,.footer-col p{display:block;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px;line-height:1.7}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:8px;font-size:12px;color:rgba(255,255,255,.52);
}
.site-footer .badge-live{background:rgba(18,168,123,.18);color:#7EE2C0}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .header-inner{gap:16px}
  .nav-link{padding:8px 10px;font-size:14.5px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px}
  .layout-split{grid-template-columns:1fr;gap:20px}
  .filter-panel{position:static;padding:16px}
  .filter-panel h3{margin-bottom:12px}
  .filter-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .filter-list li+li{margin-top:0}
  .filter-link{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;border-radius:var(--r-pill);background:var(--surface-alt)}
  .filter-link.is-active{border-left:0;border-bottom-color:transparent}
  .filter-note{display:none}
  .game-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .game-card.feature{grid-column:span 2;flex-direction:column}
  .game-card.feature .thumb{width:100%;aspect-ratio:16/10}
  .game-card.feature .card-body{padding:22px}
  .point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .point-card.wide{grid-column:span 2}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .voice-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero .container{padding-top:32px;padding-bottom:40px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .cta-panel{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .point-card.wide{flex-direction:column;align-items:flex-start;gap:18px}
  .point-visual{width:100%;flex:none}
  .header-actions .btn{display:none}
  .section{padding:40px 0}
  .section-tight{padding:32px 0}
}
@media (max-width:560px){
  .game-grid{grid-template-columns:1fr}
  .game-card.feature{grid-column:span 1}
  .point-grid{grid-template-columns:1fr}
  .point-card.wide{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .content-bar{padding:14px 16px}
  .btn{height:46px;padding:0 20px}
  .btn-lg{height:50px}
  .stat{padding:20px 16px}
  .stat .v{font-size:26px}
}
@media (max-width:375px){
  .container{padding:0 14px}
  h1{font-size:28px}
  .logo-text{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* roulang page: category3 */
:root{
  --bg:#F5F7FB; --surface:#FFFFFF; --surface-alt:#EEF3FA;
  --line:#E4EAF2; --line-strong:#D3DCE8;
  --ink-900:#0E1B33; --ink-700:#26344C; --ink-600:#46536B; --ink-400:#7C8AA0;
  --brand-800:#0B2857; --brand-700:#123B7A; --brand-600:#1A56C4; --brand-500:#2A6BE0; --brand-100:#E8F0FE;
  --accent-600:#E85A1C; --accent-500:#FF6A2B; --accent-100:#FFF0E8;
  --ok-500:#12A87B; --warn-500:#E8A33D; --muted-500:#98A4B8; --danger:#D64545;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--bg); color:var(--ink-600);
  font-family:var(--font-sans); font-size:16px; line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block; height:auto;}
a{color:var(--brand-600); text-decoration:none; transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
button,input,select,textarea{font-family:inherit; font-size:inherit; color:inherit;}
h1,h2,h3,h4{margin:0; color:var(--ink-900); font-weight:700;}
h1{font-size:clamp(30px,4vw,48px); line-height:1.25; letter-spacing:-.5px;}
h2{font-size:clamp(24px,3vw,34px); line-height:1.3;}
h3{font-size:20px; line-height:1.45; font-weight:600;}
h4{font-size:17px; line-height:1.5; font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0; padding:0; list-style:none;}
:focus-visible{outline:2px solid var(--brand-600); outline-offset:2px; border-radius:4px;}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 24px;}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section--alt{background:var(--surface);}
.section-head{max-width:760px; margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block; font-size:12px; letter-spacing:.14em; color:var(--brand-600);
  font-weight:600; margin-bottom:12px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px; color:var(--ink-600); margin:0;}
.num{font-family:var(--font-num); font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:60; background:var(--surface);
  border-bottom:1px solid var(--line); transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.header-inner{display:flex; align-items:center; gap:32px; height:72px;}
.logo{display:flex; align-items:center; gap:10px; flex-shrink:0;}
.logo-mark{
  width:28px; height:28px; border-radius:8px; background:var(--brand-600); color:#fff;
  display:flex; align-items:center; justify-content:center; font-size:15px; font-weight:700;
}
.logo-text{font-size:18px; font-weight:700; color:var(--ink-900); letter-spacing:-.2px;}
.main-nav{display:flex; align-items:center; gap:28px; margin-right:auto;}
.nav-link{
  position:relative; font-size:15px; color:var(--ink-600); padding:6px 0; font-weight:500;
}
.nav-link::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:var(--brand-600); transform:scaleX(0); transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600); font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex; align-items:center; gap:14px; margin-left:auto;}
.nav-toggle{
  display:none; width:40px; height:40px; align-items:center; justify-content:center;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-sm);
  cursor:pointer; transition:border-color .2s var(--ease), background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-strong); background:var(--surface-alt);}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--ink-700); position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:""; position:absolute; left:0; width:18px; height:2px; background:var(--ink-700);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex; align-items:center; gap:6px; border-radius:var(--r-pill);
  padding:4px 10px; font-size:12px; line-height:1.5; font-weight:600; white-space:nowrap;
}
.badge-live{background:rgba(18,168,123,.1); color:var(--ok-500);}
.badge-soon{background:var(--accent-100); color:var(--accent-600);}
.badge-new{background:var(--brand-100); color:var(--brand-600);}
.badge-muted{background:var(--surface-alt); color:var(--muted-500);}
.badge .dot{width:6px; height:6px; border-radius:50%; background:currentColor; display:inline-block;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 28px; border-radius:var(--r-md); border:1px solid transparent;
  font-size:15px; font-weight:600; cursor:pointer; white-space:nowrap;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent-500); color:#fff;}
.btn-primary:hover{background:var(--accent-600); color:#fff; transform:translateY(-2px); box-shadow:var(--shadow-md);}
.btn-outline{background:transparent; border-color:var(--brand-600); color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100); color:var(--brand-700);}
.btn-ghost{background:transparent; color:var(--brand-600); padding:0 8px; height:auto;}
.btn-ghost .arrow{transition:transform .2s var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:36px; padding:0 18px; font-size:14px;}
.btn-md{height:44px; padding:0 24px;}
.btn:disabled,.btn[disabled]{background:var(--line); color:var(--ink-400); cursor:not-allowed; transform:none; box-shadow:none;}

/* ---------- notice bar ---------- */
.notice-bar{background:var(--brand-800); color:#fff;}
.notice-inner{
  display:flex; align-items:center; gap:16px; min-height:48px; padding:8px 0; flex-wrap:wrap;
}
.notice-inner .badge{background:rgba(255,255,255,.12); color:#fff;}
.notice-text{font-size:14px; color:rgba(255,255,255,.86); margin:0;}
.notice-inner .btn{margin-left:auto;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative; background:var(--brand-800); color:#fff; overflow:hidden;
  padding:64px 0 56px;
}
.page-hero::before{
  content:""; position:absolute; inset:0; opacity:.05;
  background-image:linear-gradient(to right,#fff 1px,transparent 1px),linear-gradient(to bottom,#fff 1px,transparent 1px);
  background-size:40px 40px;
}
.page-hero .container{position:relative; z-index:1;}
.crumb{display:flex; align-items:center; gap:8px; font-size:13px; color:rgba(255,255,255,.66); margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.66);}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.35);}
.crumb .current{color:rgba(255,255,255,.86);}
.page-hero h1{color:#fff; max-width:820px; margin-bottom:18px;}
.page-hero .lede{font-size:17px; line-height:1.85; color:rgba(255,255,255,.82); max-width:720px; margin-bottom:24px;}
.hero-tags{display:flex; flex-wrap:wrap; gap:10px;}
.hero-tags .badge{background:rgba(255,255,255,.12); color:#fff;}

/* ---------- download bar ---------- */
.download-bar{padding-top:48px;}
.download-card{
  display:grid; grid-template-columns:1.5fr 1fr; gap:32px; align-items:center;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--shadow-md); padding:32px;
}
.download-card h2{font-size:clamp(22px,2.4vw,28px); margin-bottom:12px;}
.download-card p{color:var(--ink-600); font-size:15px; margin-bottom:20px;}
.download-actions{display:flex; flex-wrap:wrap; align-items:center; gap:14px;}
.version-note{font-size:13px; color:var(--ink-400); font-family:var(--font-num); margin:0;}
.download-figure{
  border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--line);
  box-shadow:var(--shadow-sm); aspect-ratio:16/10; background:var(--surface-alt);
}
.download-figure img{width:100%; height:100%; object-fit:cover;}

/* ---------- compare table ---------- */
.table-scroll{
  overflow-x:auto; border:1px solid var(--line); border-radius:var(--r-lg);
  background:var(--surface); box-shadow:var(--shadow-sm);
}
.compare-table{width:100%; border-collapse:collapse; min-width:680px;}
.compare-table thead th{
  background:var(--surface-alt); color:var(--ink-900); font-size:14px; font-weight:600;
  text-align:left; padding:16px 24px; border-bottom:1px solid var(--line); white-space:nowrap;
}
.compare-table tbody td{
  padding:16px 24px; font-size:15px; color:var(--ink-600);
  border-bottom:1px solid var(--line); vertical-align:top;
}
.compare-table tbody tr:nth-child(odd) td{background:var(--surface-alt);}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table .row-key{color:var(--ink-900); font-weight:600; white-space:nowrap;}
.compare-table .mine{color:var(--brand-700); font-weight:600;}

/* ---------- accordion ---------- */
.acc-list{display:flex; flex-direction:column; gap:12px;}
.acc-item{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-md);
  box-shadow:var(--shadow-sm); overflow:hidden; transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.acc-item:hover{border-color:var(--brand-100); box-shadow:var(--shadow-md);}
.acc-head{
  width:100%; min-height:56px; display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px 20px; background:transparent; border:0; cursor:pointer; text-align:left;
}
.acc-head h3{font-size:16px; font-weight:600; color:var(--ink-900); margin:0;}
.acc-icon{
  flex-shrink:0; width:22px; height:22px; color:var(--brand-600);
  transition:transform .2s var(--ease);
}
.acc-item.is-open .acc-icon{transform:rotate(180deg);}
.acc-panel{max-height:0; overflow:hidden; transition:max-height .25s var(--ease);}
.acc-panel-inner{padding:0 20px 20px; font-size:15px; line-height:1.85; color:var(--ink-600);}

/* ---------- steps ---------- */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:24px; counter-reset:step;}
.step{
  position:relative; background:var(--surface); border:1px solid var(--line);
  border-radius:var(--r-lg); padding:28px 24px; box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--brand-100);}
.step-num{
  font-family:var(--font-num); font-size:13px; font-weight:700; color:var(--brand-600);
  letter-spacing:.08em; margin-bottom:14px; display:block;
}
.step h3{font-size:17px; margin-bottom:10px;}
.step p{font-size:14px; line-height:1.75; color:var(--ink-600); margin:0;}
.step::after{
  content:""; position:absolute; top:50%; right:-24px; width:24px; height:1px;
  background:var(--line-strong);
}
.step:last-child::after{display:none;}

/* ---------- form ---------- */
.form-panel{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-xl);
  padding:40px; box-shadow:var(--shadow-sm);
}
.form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:24px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-size:14px; font-weight:600; color:var(--ink-700);}
.field .control{
  height:48px; border-radius:var(--r-md); border:1px solid var(--line); background:var(--surface);
  padding:0 16px; font-size:15px; color:var(--ink-900); width:100%;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field .control:hover{border-color:var(--line-strong);}
.field .control:focus{
  outline:none; border-color:var(--brand-600); box-shadow:0 0 0 2px var(--brand-100);
}
.field .hint{font-size:12px; color:var(--ink-400);}
.form-foot{display:flex; flex-wrap:wrap; align-items:center; gap:16px; margin-top:28px;}
.form-foot .hint{font-size:13px; color:var(--ink-400); margin:0;}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--brand-100); border-radius:var(--r-xl); padding:48px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px); margin-bottom:10px;}
.cta-panel p{color:var(--ink-600); max-width:620px; margin:0; font-size:15px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-800); color:rgba(255,255,255,.72); margin-top:80px;}
.footer-grid{
  display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:40px; padding:64px 0 48px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px; line-height:1.8; color:rgba(255,255,255,.66); margin-bottom:18px;}
.footer-col h4{color:#fff; font-size:15px; margin-bottom:18px;}
.footer-col a,.footer-col p{
  display:block; font-size:14px; color:rgba(255,255,255,.66); margin-bottom:12px;
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff; text-decoration:underline;}
.footer-bottom{
  display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12); padding:20px 0 28px; font-size:12px;
  color:rgba(255,255,255,.55);
}
.footer-brand .badge{background:rgba(18,168,123,.18); color:#4FD9AC;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed; inset:0; background:rgba(14,27,51,.45); opacity:0; visibility:hidden;
  transition:opacity .2s var(--ease), visibility .2s var(--ease); z-index:70;
}
.drawer-mask.is-open{opacity:1; visibility:visible;}
.mobile-drawer{
  position:fixed; top:0; right:0; height:100%; width:78%; max-width:340px; background:var(--surface);
  box-shadow:var(--shadow-lg); z-index:80; transform:translateX(100%);
  transition:transform .25s var(--ease); display:flex; flex-direction:column; padding:24px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:24px;}
.drawer-close{
  width:36px; height:36px; border-radius:var(--r-sm); border:1px solid var(--line);
  background:var(--surface); cursor:pointer; font-size:16px; color:var(--ink-700);
}
.drawer-nav{display:flex; flex-direction:column; gap:4px;}
.drawer-nav a{
  padding:14px 12px; border-radius:var(--r-sm); font-size:15px; color:var(--ink-700); font-weight:500;
}
.drawer-nav a:hover{background:var(--surface-alt);}
.drawer-nav a.is-active{background:var(--brand-100); color:var(--brand-600); font-weight:600;}
.drawer-foot{margin-top:auto; padding-top:24px;}
.drawer-foot .btn{width:100%;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .header-inner{gap:20px; height:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .badge{display:none;}
  .section{padding:56px 0;}
  .section--tight{padding:40px 0;}
  .download-card{grid-template-columns:1fr; gap:24px;}
  .download-figure{aspect-ratio:16/9;}
  .steps{grid-template-columns:1fr; gap:16px;}
  .step::after{
    top:auto; bottom:-16px; left:32px; right:auto; width:1px; height:16px;
  }
  .footer-grid{grid-template-columns:1fr 1fr; gap:32px; padding:48px 0 32px;}
  .cta-panel{padding:36px;}
}
@media (max-width:768px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .page-hero{padding:48px 0 40px;}
  .page-hero .lede{font-size:16px;}
  .section{padding:40px 0;}
  .form-panel{padding:24px;}
  .form-grid{grid-template-columns:1fr;}
  .download-card{padding:24px;}
  .cta-panel{padding:28px; gap:20px;}
  .cta-panel .btn{width:100%;}
  .footer-bottom{flex-direction:column; align-items:flex-start;}
}
@media (max-width:560px){
  h1{font-size:28px;}
  .logo-text{font-size:16px;}
  .compare-table thead th,.compare-table tbody td{padding:14px 16px; font-size:14px;}
  .notice-inner{font-size:13px;}
  .notice-inner .btn{margin-left:0; width:100%;}
  .acc-head{padding:12px 16px;}
  .acc-head h3{font-size:15px;}
  .acc-panel-inner{padding:0 16px 16px;}
  .form-foot .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *{transition-duration:.01ms !important; animation-duration:.01ms !important;}
}

/* roulang page: category4 */
:root{
  --bg:#F5F7FB;
  --surface:#FFFFFF;
  --surface-alt:#EEF3FA;
  --line:#E4EAF2;
  --line-strong:#D3DCE8;
  --ink-900:#0E1B33;
  --ink-700:#26344C;
  --ink-600:#46536B;
  --ink-400:#7C8AA0;
  --brand-800:#0B2857;
  --brand-700:#123B7A;
  --brand-600:#1A56C4;
  --brand-500:#2A6BE0;
  --brand-100:#E8F0FE;
  --accent-600:#E85A1C;
  --accent-500:#FF6A2B;
  --accent-100:#FFF0E8;
  --ok-500:#12A87B;
  --warn-500:#E8A33D;
  --muted-500:#98A4B8;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,var(--font-sans);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(16,38,74,.05);
  --shadow-md:0 8px 24px rgba(16,38,74,.08);
  --shadow-lg:0 16px 40px rgba(16,38,74,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.3px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
  transition:min-height .2s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink-900);
  flex:0 0 auto;
}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:28px;
  height:28px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  color:#fff;
  font-size:15px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  line-height:1;
  box-shadow:0 4px 10px rgba(26,86,196,.28);
}
.logo-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.3px;
}

.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-600);
  padding:6px 0;
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:var(--brand-600);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:var(--r-md);
  color:var(--ink-700);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-strong);background:var(--surface-alt);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(255,106,43,.24);}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-outline{background:transparent;color:var(--brand-600);border-color:var(--brand-600);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-600);}
.btn-ghost{background:transparent;color:var(--brand-600);padding:0 4px;height:auto;}
.btn-ghost .arrow{display:inline-block;transition:transform .2s var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-md{height:44px;padding:0 22px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:var(--r-pill);
  padding:4px 10px;
  font-size:12px;
  line-height:1.5;
  font-weight:600;
  white-space:nowrap;
}
.badge-live{background:rgba(18,168,123,.12);color:var(--ok-500);}
.badge-soon{background:var(--accent-100);color:var(--accent-600);}
.badge-new{background:var(--brand-100);color:var(--brand-600);}
.badge-muted{background:var(--surface-alt);color:var(--muted-500);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;}

/* ---------- Page hero ---------- */
.page-hero{
  background-color:var(--brand-800);
  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:32px 32px,32px 32px;
  padding:38px 0 42px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.page-hero .breadcrumb{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:18px;
}
.page-hero .breadcrumb li{display:flex;align-items:center;gap:8px;}
.page-hero .breadcrumb li+li::before{
  content:"";
  width:6px;height:6px;
  border-top:1px solid rgba(255,255,255,.42);
  border-right:1px solid rgba(255,255,255,.42);
  transform:rotate(45deg);
  display:inline-block;
}
.page-hero .breadcrumb a{color:rgba(255,255,255,.82);}
.page-hero .breadcrumb a:hover{color:#fff;}
.page-hero .breadcrumb [aria-current="page"]{color:rgba(255,255,255,.52);}
.page-hero h1{
  color:#fff;
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;
  margin-bottom:14px;
  max-width:820px;
}
.page-hero .hero-sub{
  color:rgba(255,255,255,.76);
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.8;
  max-width:660px;
  margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags .tag-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.86);
  font-size:13px;
}
.hero-tags .tag-line .dot{width:7px;height:7px;border-radius:50%;background:var(--ok-500);}

/* ---------- Section base ---------- */
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-600);margin:0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  letter-spacing:.6px;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:18px;height:2px;
  background:var(--brand-600);
  border-radius:2px;
}

/* ---------- Fact strip ---------- */
.fact-strip{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-sm);
  padding:8px 0;
  margin-top:-30px;
  position:relative;
  z-index:2;
}
.fact-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.fact-item{
  padding:22px 28px;
  border-left:1px solid var(--line);
}
.fact-item:first-child{border-left:0;}
.fact-item .fact-label{
  font-size:13px;
  color:var(--ink-400);
  margin-bottom:6px;
}
.fact-item .fact-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:19px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.2px;
}

/* ---------- Layout ---------- */
.layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:48px;
  align-items:start;
}

.toc-card{
  position:sticky;
  top:96px;
}
.toc-title{
  font-size:13px;
  font-weight:600;
  color:var(--ink-400);
  letter-spacing:.8px;
  margin-bottom:12px;
  padding-left:14px;
}
.toc-list{list-style:none;}
.toc-list a{
  display:block;
  padding:11px 14px;
  border-left:3px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:15px;
  color:var(--ink-600);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{background:var(--surface-alt);color:var(--ink-900);}
.toc-list a.is-current{
  background:var(--brand-100);
  border-left-color:var(--brand-600);
  color:var(--brand-600);
  font-weight:600;
}
.toc-side-extra{margin-top:28px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.side-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.side-card-body{padding:18px 20px 20px;}
.side-card-body h3{font-size:16px;margin-bottom:8px;}
.side-card-body p{font-size:14px;line-height:1.75;color:var(--ink-600);margin-bottom:12px;}

/* ---------- FAQ ---------- */
.faq-section{
  scroll-margin-top:120px;
  margin-bottom:44px;
}
.faq-section:last-child{margin-bottom:0;}
.faq-section-head{
  display:flex;
  align-items:center;
  gap:14px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:20px;
}
.faq-index{
  flex:0 0 auto;
  width:34px;
  height:34px;
  border-radius:var(--r-sm);
  background:var(--brand-100);
  color:var(--brand-600);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.faq-section-head h2{
  font-size:20px;
  line-height:1.45;
  letter-spacing:-.2px;
}
.faq-section-head .count{
  margin-left:auto;
  font-size:13px;
  color:var(--ink-400);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
}

.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);}
.faq-item.is-open{border-color:var(--brand-100);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 20px;
  background:none;
  border:0;
  border-radius:var(--r-md);
  text-align:left;
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  color:var(--ink-900);
  cursor:pointer;
}
.faq-q:hover{color:var(--brand-600);}
.faq-arrow{
  flex:0 0 auto;
  width:20px;height:20px;
  color:var(--ink-400);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-q[aria-expanded="true"] .faq-arrow{transform:rotate(180deg);color:var(--brand-600);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s var(--ease);
}
.faq-a-inner{
  padding:0 20px 18px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--ink-600);
}
.faq-a-inner .faq-note{
  display:block;
  margin-top:10px;
  padding:10px 14px;
  background:var(--surface-alt);
  border-radius:var(--r-sm);
  font-size:14px;
  color:var(--ink-600);
}

/* ---------- CTA card ---------- */
.cta-panel{
  background:var(--brand-100);
  border-radius:var(--r-xl);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  scroll-margin-top:120px;
}
.cta-panel .cta-text h2{
  font-size:clamp(20px,2.4vw,26px);
  margin-bottom:12px;
}
.cta-panel .cta-text p{
  color:var(--ink-600);
  font-size:15.5px;
  max-width:620px;
  margin:0;
}
.cta-panel .cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  flex:0 0 auto;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.68);
  margin-top:80px;
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  margin-bottom:16px;
  max-width:320px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
  font-weight:600;
}
.footer-col a,
.footer-col p{
  display:block;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.68);
  margin:0 0 10px;
}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12px;
  color:rgba(255,255,255,.5);
}

/* ---------- Drawer ---------- */
.nav-overlay{
  position:fixed;
  inset:0;
  background:rgba(14,27,51,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s var(--ease);
  z-index:70;
}
.nav-overlay.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;
  top:0;right:0;
  width:78%;
  max-width:340px;
  height:100%;
  background:var(--surface);
  box-shadow:var(--shadow-lg);
  transform:translateX(102%);
  transition:transform .25s var(--ease);
  z-index:80;
  display:flex;
  flex-direction:column;
  padding:22px 22px 26px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.drawer-close{
  width:36px;height:36px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  color:var(--ink-700);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.drawer-close:hover{background:var(--surface-alt);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 4px;
  font-size:16px;
  color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand-600);}
.drawer-nav a.is-active{color:var(--brand-600);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:22px;}
.drawer-foot .btn{width:100%;}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
  .layout{gap:36px;}
}

@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:16px;}
  .logo-text{font-size:17px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .fact-grid{grid-template-columns:repeat(2,1fr);}
  .fact-item{border-left:0;border-top:1px solid var(--line);padding:18px 22px;}
  .fact-item:nth-child(-n+2){border-top:0;}
  .fact-item:nth-child(even){border-left:1px solid var(--line);}
  .layout{grid-template-columns:1fr;gap:0;}
  .toc-card{
    position:sticky;
    top:68px;
    z-index:30;
    background:var(--bg);
    padding:14px 0 12px;
    margin-bottom:8px;
  }
  .toc-title{display:none;}
  .toc-list{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding-bottom:4px;
    scrollbar-width:none;
  }
  .toc-list::-webkit-scrollbar{display:none;}
  .toc-list li{flex:0 0 auto;}
  .toc-list a{
    border:1px solid var(--line);
    border-left:1px solid var(--line);
    border-radius:var(--r-pill);
    background:var(--surface);
    padding:8px 16px;
    font-size:14px;
    white-space:nowrap;
  }
  .toc-list a.is-current{
    background:var(--brand-100);
    border-color:var(--brand-100);
    color:var(--brand-600);
  }
  .toc-side-extra{display:none;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:32px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-header.is-scrolled .header-inner{min-height:60px;}
}

@media (max-width:768px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .page-hero{padding:28px 0 34px;}
  .page-hero h1{font-size:26px;}
  .header-actions .badge{display:none;}
  .fact-strip{margin-top:-22px;border-radius:var(--r-lg);}
  .fact-grid{grid-template-columns:1fr;}
  .fact-item{border-left:0 !important;border-top:1px solid var(--line);}
  .fact-item:first-child{border-top:0;}
  .faq-section-head{flex-wrap:wrap;gap:10px;}
  .faq-section-head .count{margin-left:0;width:100%;}
  .faq-q{font-size:15.5px;padding:14px 16px;}
  .faq-a-inner{padding:0 16px 16px;font-size:15px;}
  .cta-panel{padding:26px 22px;border-radius:var(--r-lg);}
  .cta-panel .cta-actions{width:100%;}
  .cta-panel .cta-actions .btn{flex:1 1 auto;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:560px){
  .logo-text{font-size:16px;}
  .header-actions .btn-sm{display:none;}
  .faq-section{margin-bottom:34px;}
  .btn{width:auto;}
  .cta-panel .cta-actions{flex-direction:column;}
  .cta-panel .cta-actions .btn{width:100%;}
}

@media (max-width:375px){
  .container{padding:0 14px;}
  .page-hero h1{font-size:23px;}
  .faq-q{font-size:15px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}