/* roulang page: index */
:root{
  --c-primary:#1657A6;
  --c-primary-dark:#0E3C77;
  --c-primary-soft:#E8F0FA;
  --c-orange:#F26430;
  --c-orange-soft:#FDECE4;
  --c-bg:#F4F7FB;
  --c-card:#FFFFFF;
  --c-line:#E3EAF3;
  --c-text:#12202F;
  --c-text-2:#5A6B7D;
  --c-text-3:#93A2B2;
  --c-success:#1E9E6A;
  --c-warn:#E0A300;
  --c-error:#D6443B;
  --c-night:#0E3C77;
  --r-xs:8px;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:14px;
  --r-xl:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,32,47,.06),0 8px 24px rgba(18,32,47,.06);
  --sh-2:0 12px 32px rgba(18,32,47,.10);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
  --sp-7:88px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
svg{display:block}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,32,47,.08)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:0;white-space:nowrap}
.logo:hover{color:var(--c-text)}
.logo-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(22,87,166,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:700}
.logo-text span{font-size:11px;color:var(--c-text-3);font-weight:500;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-text-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);background:var(--c-primary-soft);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:16px 24px 24px;
}
.drawer.is-open{display:block}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.drawer-nav a{
  padding:12px 14px;border-radius:var(--r-sm);background:var(--c-bg);
  color:var(--c-text);font-weight:500;font-size:15px;min-height:44px;display:flex;align-items:center;
}
.drawer-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:600}
.drawer-actions{display:grid;gap:10px}
.btn-block{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(22,87,166,.22)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(22,87,166,.30)}
.btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.btn-orange{background:var(--c-orange);color:#fff;box-shadow:0 6px 16px rgba(242,100,48,.24)}
.btn-orange:hover{background:#D9531F;color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:#EAF2FC;color:var(--c-primary-dark)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary)}
.link-arrow i{font-style:normal;transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(3px)}
.link-underline{font-weight:600;text-decoration:underline;text-underline-offset:3px}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-orange{background:var(--c-orange-soft);color:var(--c-orange)}
.badge-gray{background:#EEF2F7;color:var(--c-text-2)}
.badge-live{background:var(--c-orange);color:#fff}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);font-weight:500;
}
.chip strong{color:var(--c-text);font-weight:600}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:56px 0 64px;
  background:
    repeating-linear-gradient(135deg,rgba(22,87,166,.045) 0 1px,transparent 1px 12px),
    #F4F7FB;
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(0,1fr);gap:32px;align-items:start}
.hero-copy{margin-bottom:24px}
.hero-copy h1{
  font-size:44px;line-height:1.28;font-weight:700;letter-spacing:0;
  margin-bottom:14px;
}
.hero-copy h1 em{font-style:normal;color:var(--c-primary)}
.hero-copy p{font-size:16px;color:var(--c-text-2);max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

.hero-stage{position:relative;border-radius:var(--r-xl);overflow:hidden;background:var(--c-primary-dark);box-shadow:var(--sh-1)}
.stage-media{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.stage-overlay{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(22,87,166,.86),rgba(22,87,166,0) 58%);
}
.stage-badge{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-orange);color:#fff;font-size:12px;font-weight:700;
  box-shadow:0 6px 14px rgba(242,100,48,.35);
}
.pip{
  position:absolute;right:16px;bottom:104px;width:132px;
  aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 10px 24px rgba(18,32,47,.28);
  background:#0E3C77;
}
.countdown{
  position:absolute;left:16px;right:16px;bottom:16px;
  background:rgba(255,255,255,.96);
  border-radius:var(--r-lg);
  padding:10px 14px;
  display:flex;align-items:center;gap:12px;
  box-shadow:0 8px 22px rgba(18,32,47,.14);
}
.cd-title{font-size:12px;color:var(--c-text-2);font-weight:600;flex:0 0 auto;display:flex;flex-direction:column;line-height:1.4}
.cd-title b{font-size:13px;color:var(--c-text)}
.cd-cells{display:flex;align-items:center;gap:8px;margin-left:auto}
.cd-cell{
  min-width:60px;text-align:center;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  padding:6px 8px;
}
.cd-num{font-size:26px;font-weight:700;line-height:1.15;color:var(--c-primary-dark);letter-spacing:0;transition:opacity .12s ease}
.cd-num.is-fade{opacity:.35}
.cd-label{font-size:11px;color:var(--c-text-3);font-weight:500}
.cd-sep{color:var(--c-text-3);font-weight:700;font-size:18px;line-height:1}
.cd-note{font-size:13px;color:var(--c-text-2);margin-top:10px}

.hero-side{display:flex;flex-direction:column;gap:16px}
.meta-bar{display:flex;flex-wrap:wrap;gap:8px}
.panel{
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.panel-head{
  padding:14px 18px;border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.panel-head h2{font-size:16px;font-weight:700}
.panel-body{padding:6px 18px 14px}
.hl-list{display:flex;flex-direction:column}
.hl-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--c-line);font-size:14.5px;color:var(--c-text-2);line-height:1.65}
.hl-item:last-child{border-bottom:0}
.hl-num{
  width:26px;height:26px;flex:0 0 auto;border-radius:var(--r-xs);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.remind{padding:18px;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.remind h2{font-size:16px;font-weight:700;margin-bottom:6px}
.remind p{font-size:13px;color:var(--c-text-2);margin-bottom:12px}
.subscribe-form{display:flex;gap:10px}
.subscribe-form .input{flex:1 1 auto;min-width:0}
.input{
  height:46px;width:100%;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;font-size:15px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--c-text-3)}
.input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,87,166,.16)}
.input.is-error{border-color:var(--c-error);box-shadow:0 0 0 3px rgba(214,68,59,.14)}
.input.is-success{border-color:var(--c-success);box-shadow:0 0 0 3px rgba(30,158,106,.14)}
.form-msg{font-size:13px;margin-top:8px;color:var(--c-text-2)}
.form-msg.is-error{color:var(--c-error)}
.form-msg.is-success{color:var(--c-success)}
.side-links{display:flex;flex-direction:column;gap:10px}

/* ---------- sections ---------- */
.sec{padding:var(--sp-7) 0}
.sec-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{margin-bottom:32px;max-width:760px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  margin-bottom:10px;
}
.sec-eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary)}
.sec-title{font-size:28px;font-weight:700;line-height:1.4;letter-spacing:0}
.sec-sub{margin-top:10px;font-size:15px;color:var(--c-text-2)}

/* ---------- stream list ---------- */
.stream-list{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.stream-item{
  display:grid;grid-template-columns:200px minmax(0,1fr) 40px;
  gap:20px;align-items:center;
  padding:18px 22px;border-bottom:1px solid var(--c-line);
  color:var(--c-text);transition:background .18s ease;
}
.stream-item:last-child{border-bottom:0}
.stream-item:hover{background:#F7FAFE;color:var(--c-text)}
.stream-item:hover .stream-arrow{transform:translateX(3px);color:var(--c-primary)}
.thumb{border-radius:var(--r-md);overflow:hidden;background:#E9EFF7}
.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.stream-item:hover .thumb img{transform:scale(1.03)}
.stream-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px}
.stream-body p{font-size:14px;color:var(--c-text-2);margin-bottom:8px}
.stream-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.stream-arrow{font-size:20px;color:var(--c-text-3);transition:transform .18s ease,color .18s ease;text-align:right}

/* ---------- capability ---------- */
.cap-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.cap-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.cap-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cap-body{padding:24px}
.cap-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.cap-body p{font-size:15px;color:var(--c-text-2);margin-bottom:14px}
.cap-list{display:flex;flex-direction:column;gap:8px}
.cap-list li{position:relative;padding-left:18px;font-size:14px;color:var(--c-text-2)}
.cap-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.cap-inline{display:flex;flex-direction:column;gap:18px}
.cap-strip{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;
  padding:20px 22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  transition:box-shadow .2s ease,transform .2s ease;
}
.cap-strip:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.cap-icon{
  width:56px;height:56px;border-radius:var(--r-lg);
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.cap-strip h3{font-size:18px;font-weight:700;margin-bottom:6px}
.cap-strip p{font-size:14.5px;color:var(--c-text-2)}

/* ---------- stats ---------- */
.stats-band{
  background:var(--c-night);
  border-radius:var(--r-xl);
  padding:40px 32px;
  color:#fff;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
}
.stat{text-align:center;padding:0 12px;position:relative}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:12%;height:76%;width:1px;
  background:rgba(255,255,255,.18);
}
.stat-num{font-size:32px;font-weight:700;line-height:1.25;color:#fff}
.stat-num span{font-size:16px;font-weight:600;margin-left:2px;color:rgba(255,255,255,.8)}
.stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:4px}
.stats-note{margin-top:16px;font-size:13px;color:var(--c-text-3)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.step{position:relative;padding-top:34px}
.step::before{
  content:"";position:absolute;top:14px;left:0;right:0;height:1px;background:var(--c-line);
}
.step:last-child::before{right:calc(100% - 40px)}
.step-dot{
  position:absolute;top:0;left:0;
  width:30px;height:30px;border-radius:50%;
  background:#fff;border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--c-text-2)}

/* ---------- news / cms ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px;align-items:start}
.news-feature{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-feature-link{display:block;color:var(--c-text)}
.news-feature-media{background:#E9EFF7}
.news-feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-feature-body{padding:24px}
.news-feature-body h3{font-size:22px;font-weight:700;line-height:1.45;margin:10px 0 10px}
.news-feature-body p{font-size:15px;color:var(--c-text-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-text-3)}
.news-side{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden}
.news-mini{
  display:block;padding:18px 20px;border-bottom:1px solid var(--c-line);color:var(--c-text);
  transition:background .18s ease;
}
.news-mini:last-child{border-bottom:0}
.news-mini:hover{background:#F7FAFE;color:var(--c-text)}
.news-mini h4{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini p{font-size:13.5px;color:var(--c-text-2);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  grid-column:1 / -1;
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 16px;border-radius:50%;
  border:1px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;
  background:var(--c-primary-soft);
}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:16px}

/* ---------- faq ---------- */
.faq{border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff;overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--c-text);
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F7FAFE}
.faq-item summary:focus-visible{outline:3px solid rgba(22,87,166,.3);outline-offset:-3px}
.faq-mark{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;line-height:1;transition:transform .2s ease;
}
.faq-item[open] .faq-mark{transform:rotate(45deg)}
.faq-answer{padding:0 22px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 var(--sp-7)}
.cta-band{
  background:var(--c-primary);
  border-radius:var(--r-xl);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;margin-bottom:10px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.82);max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:#F8FAFD;border-top:1px solid var(--c-line);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand p{font-size:14px;color:var(--c-text-2);margin:14px 0 16px;max-width:340px}
.footer-sub{display:flex;gap:8px;max-width:340px}
.footer-sub .input{height:44px;background:#fff}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* ---------- states ---------- */
.skeleton{background:#EDF2F8;border-radius:var(--r-sm);animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-copy h1{font-size:38px}
  .nav-links{gap:0}
  .nav-link{padding:8px 11px;font-size:14px}
  .sec{padding:72px 0}
}
@media (max-width:991px){
  .nav-links,.nav-actions .btn-outline{display:none}
  .nav-toggle{display:flex}
  .nav-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero{padding:40px 0 48px}
  .hero-copy h1{font-size:34px}
  .pip{display:none}
  .cap-row{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .step:nth-child(3)::before{right:calc(100% - 40px)}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding:32px 24px}
  .stat:nth-child(3)::before{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .sec{padding:48px 0}
  .sec-title{font-size:23px}
  .hero-copy h1{font-size:28px}
  .hero-copy p{font-size:15px}
  .countdown{padding:8px 10px;gap:8px;border-radius:var(--r-md)}
  .cd-title{display:none}
  .cd-cells{margin:0 auto;gap:6px}
  .cd-cell{min-width:52px;padding:4px 6px}
  .cd-num{font-size:20px}
  .stream-item{grid-template-columns:1fr;gap:14px;padding:16px}
  .stream-arrow{display:none}
  .thumb img{aspect-ratio:16/9}
  .cap-strip{grid-template-columns:44px minmax(0,1fr);padding:18px}
  .cap-icon{width:44px;height:44px;font-size:18px}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:28px 16px}
  .stat + .stat::before{display:none}
  .stat-num{font-size:26px}
  .stat-label{font-size:13px}
  .steps{grid-template-columns:1fr;gap:22px}
  .step{padding-top:0;padding-left:46px}
  .step::before{display:none}
  .step-dot{position:absolute;top:0;left:0}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .news-feature-body{padding:18px}
  .news-feature-body h3{font-size:19px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-answer{padding:0 16px 18px}
  .cta-band{padding:32px 20px;border-radius:var(--r-lg)}
  .cta-band h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .site-footer{padding:40px 0 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .hero-copy h1{font-size:24px}
  .logo-text span{display:none}
  .cd-cells{gap:4px}
  .cd-cell{min-width:46px}
  .cd-num{font-size:18px}
  .footer-grid{grid-template-columns:1fr}
  .drawer-nav{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --brand:#1657A6;
  --brand-dark:#0E3C77;
  --brand-light:#E8F0FA;
  --accent:#F26430;
  --accent-light:#FDEDE6;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#12202F;
  --muted:#5A6B7D;
  --weak:#93A2B2;
  --ok:#1E9E6A;
  --warn:#E0A300;
  --err:#D6443B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-hero:16px;
  --shadow-card:0 1px 2px rgba(18,32,47,.06),0 8px 24px rgba(18,32,47,.06);
  --shadow-hover:0 12px 32px rgba(18,32,47,.10);
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.4;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-title{font-size:26px;position:relative;padding-left:14px}
.section-title::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:1em;border-radius:2px;background:var(--brand)}
.section-sub{color:var(--muted);font-size:14px;margin-top:8px;padding-left:14px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(22,87,166,.24)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(22,87,166,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(22,87,166,.24)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-live{background:var(--accent);color:#fff}
.btn-live:hover{background:#D9531F;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand)}
.link-arrow:hover{text-decoration:none;color:var(--brand-dark)}
.link-arrow:hover .arw{transform:translateX(4px)}
.arw{transition:transform .18s ease}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;background:var(--brand-light);color:var(--brand);white-space:nowrap}
.badge-live{background:var(--accent-light);color:var(--accent)}
.badge-soft{background:#F1F5FA;color:var(--muted)}
.badge-ok{background:#E7F6EF;color:var(--ok)}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,32,47,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{
  width:38px;height:38px;border-radius:10px;flex:0 0 38px;
  background:var(--brand);color:#fff;font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text b{font-size:17px;color:var(--text);font-weight:700}
.logo-text span{font-size:12px;color:var(--weak)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text);
  transition:background-color .16s ease,color .16s ease;
}
.nav-link:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}
.nav-link.is-active{background:var(--brand-light);color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mobile-drawer a{
  display:block;padding:13px 14px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;color:var(--text);font-weight:500;
}
.mobile-drawer a:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}
.mobile-drawer .drawer-cta{grid-column:1 / -1;margin-top:6px;display:grid;gap:10px}
.mobile-drawer .btn{width:100%}

/* 面包屑 */
.crumbs{padding:20px 0 0;font-size:14px;color:var(--muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--weak)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand);text-decoration:none}
.crumbs .crumb-current{color:var(--weak);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章页头 */
.article-hero{
  background-color:#fff;
  background-image:linear-gradient(180deg,rgba(232,240,250,.92),rgba(244,247,251,.98)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:32px 0 40px;
}
.article-hero .wrap{max-width:860px}
.article-hero h1{font-size:32px;line-height:1.35;margin:14px 0 0;max-width:820px}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:22px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:14px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--weak)}
.meta-row b{color:var(--text);font-weight:600}

/* 文章主体 */
.article-shell{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:48px 0 0}
.article-wrap{max-width:760px;margin:0 auto;width:100%}
.article-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:40px 44px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:23px;line-height:1.45;margin:1.8em 0 .7em;position:relative;padding-left:15px}
.article-body h2::before{content:"";position:absolute;left:0;top:.4em;width:4px;height:.95em;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;margin:1.6em 0 .6em;color:var(--brand-dark)}
.article-body h4{font-size:17px;margin:1.4em 0 .5em}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.2em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-weight:600}
.article-body blockquote{
  margin:1.4em 0;padding:16px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin:0}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;width:100%;object-fit:cover}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px}
.article-body .table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid var(--line);border-radius:var(--r-img)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th{background:var(--brand);color:#fff;text-align:left;padding:12px 14px;font-weight:600;white-space:nowrap}
.article-body td{padding:11px 14px;border-top:1px solid var(--line);color:var(--muted)}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body pre{
  background:#F1F5FA;border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  background:#F1F5FA;border-radius:6px;padding:2px 6px;font-size:.9em;color:var(--brand-dark);
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body strong{font-weight:700;color:var(--brand-dark)}

.empty-state{
  text-align:center;padding:48px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#FAFCFE;
}
.empty-state .ring{
  width:64px;height:64px;border-radius:50%;border:1px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:22px;background:var(--brand-light);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--weak)}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;background:#F1F5FA;
  color:var(--muted);font-size:13px;transition:background-color .16s ease,color .16s ease;
}
.tag:hover{background:var(--brand-light);color:var(--brand);text-decoration:none}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav a{
  display:block;padding:16px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.post-nav a:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D3E0F0;text-decoration:none}
.post-nav .pn-label{font-size:12px;color:var(--weak);display:block;margin-bottom:6px}
.post-nav .pn-title{font-size:15px;font-weight:600;color:var(--text);line-height:1.55;display:block}

/* 相关推荐 */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D3E0F0}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:#EEF3F9}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .thumb img{transform:scale(1.03)}
.card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:17px;line-height:1.55}
.card p{font-size:14px;color:var(--muted);line-height:1.75}
.card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--weak)}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAFCFE}
.faq-item .plus{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;transition:transform .22s ease;background:var(--brand-light);
}
.faq-item[open] .plus{transform:rotate(45deg)}
.faq-item .answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:760px}

/* CTA 带 */
.cta-band{
  background:var(--brand);border-radius:var(--r-hero);padding:52px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 18px 40px rgba(22,87,166,.20);
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.45}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;margin-top:12px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:#F8FAFD;border-top:1px solid var(--line);margin-top:80px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:360px}
.footer-sub{display:flex;gap:10px;margin-top:18px;max-width:360px}
.input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease;min-width:0;
}
.input::placeholder{color:var(--weak)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,166,.16)}
.input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(214,68,59,.14)}
.input.is-ok{border-color:var(--ok);box-shadow:0 0 0 3px rgba(30,158,106,.14)}
.form-msg{font-size:13px;color:var(--weak);margin-top:10px}
.form-msg.is-error{color:var(--err)}
.form-msg.is-ok{color:var(--ok)}
.footer-col h3{font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--brand);text-decoration:none}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--weak);
}

/* 骨架 */
.skeleton{background:#E9EEF5;border-radius:8px;animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}

/* 响应式 */
@media (max-width:1199px){
  .container{padding:0 20px}
  .nav-links{gap:0}
  .nav-link{padding:9px 11px;font-size:14px}
}
@media (max-width:1023px){
  .nav-actions .btn-ghost{display:none}
  .nav-links .nav-link{padding:9px 10px;font-size:14px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px;gap:16px}
  .section{padding:60px 0}
  .cta-band{padding:40px 32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .section{padding:48px 0}
  .article-hero h1{font-size:24px}
  .article-main{padding:26px 20px;border-radius:12px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .crumbs .crumb-current{max-width:200px}
  .rec-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:14px}
  .cta-band h2{font-size:21px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-item .answer{padding:0 18px 18px}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
  .site-footer{margin-top:56px;padding:44px 0 20px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo-text span{display:none}
  .article-hero{padding:20px 0 28px}
  .article-hero h1{font-size:22px}
  .meta-row{gap:10px;font-size:13px}
  .mobile-drawer .drawer-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#1657A6;
  --primary-dark:#0E3C77;
  --primary-light:#E8F0FA;
  --accent:#F26430;
  --accent-light:#FDEDE6;
  --bg:#F4F7FB;
  --surface:#FFFFFF;
  --line:#E3EAF3;
  --text:#12202F;
  --text-sub:#5A6B7D;
  --text-weak:#93A2B2;
  --ok:#1E9E6A;
  --warn:#E0A300;
  --err:#D6443B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-hero:16px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(18,32,47,.06),0 8px 24px rgba(18,32,47,.06);
  --shadow-hover:0 12px 32px rgba(18,32,47,.10);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-dark);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;letter-spacing:0;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(22,87,166,.18);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(22,87,166,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(22,87,166,.2);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9DAEF;}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(242,100,48,.22);}
.btn-accent:hover{background:#DA5425;color:#fff;transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{background:#EDF3FB;color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.72);}
.btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.6;
  background:var(--primary-light);color:var(--primary);
}
.badge-accent{background:var(--accent-light);color:#C8481B;}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--text-sub);font-weight:500;}
.badge-soft{background:#F1F5FA;color:var(--text-sub);font-weight:500;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,32,47,.07);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;letter-spacing:1px;
  box-shadow:0 4px 12px rgba(22,87,166,.22);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.logo-text span{font-size:12px;color:var(--text-weak);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-sub);
  transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light);}
.nav-link.is-active{color:var(--primary);background:var(--primary-light);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer .drawer-inner{padding:16px 24px 24px;display:flex;flex-direction:column;gap:8px;}
.drawer-link{padding:13px 14px;border-radius:var(--r-btn);font-size:16px;font-weight:500;color:var(--text-sub);background:#F7FAFD;}
.drawer-link.is-active{color:var(--primary);background:var(--primary-light);font-weight:600;}
.mobile-drawer .btn{margin-top:6px;}
.site-header.is-open .mobile-drawer{display:block;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;background:#fff;border-bottom:1px solid var(--line);
  padding:40px 0 64px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.07;pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-weak);margin-bottom:22px;}
.crumbs a{color:var(--text-sub);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#C3CFDC;}
.crumbs .current{color:var(--text-sub);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-copy h1{font-size:40px;line-height:1.3;font-weight:700;margin:14px 0 18px;}
.hero-copy h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-sub);max-width:600px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.hero-note{font-size:13px;color:var(--text-weak);margin-top:18px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-hero);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 20px;box-shadow:var(--shadow-card);max-width:250px;
}
.hero-float strong{display:block;font-size:24px;color:var(--primary);line-height:1.2;}
.hero-float span{font-size:13px;color:var(--text-weak);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:28px;position:relative;padding-left:16px;margin-bottom:14px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary);}
.section-head p{font-size:16px;color:var(--text-sub);}

/* ---------- 图文交错 ---------- */
.zigzag{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.zigzag + .zigzag{margin-top:56px;}
.zigzag.reverse .zigzag-media{order:2;}
.zigzag-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--shadow-card);}
.zigzag-body h3{font-size:22px;margin-bottom:14px;}
.zigzag-body p{font-size:16px;color:var(--text-sub);margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{position:relative;padding-left:30px;font-size:15px;color:var(--text);}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.step-head::after{content:"";flex:1;height:2px;background:var(--line);border-radius:2px;}
.step:last-child .step-head::after{display:none;}
.step-num{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-sub);}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.metric{padding:28px 24px;text-align:center;border-right:1px solid var(--line);}
.metric:last-child{border-right:none;}
.metric strong{display:block;font-size:32px;font-weight:700;color:var(--primary);line-height:1.2;}
.metric span{display:block;font-size:14px;color:var(--text-sub);margin-top:8px;}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--shadow-card);}
table{width:100%;border-collapse:collapse;min-width:680px;}
thead th{
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  text-align:left;padding:16px 20px;white-space:nowrap;
}
tbody td{padding:16px 20px;font-size:15px;color:var(--text-sub);border-top:1px solid var(--line);vertical-align:top;}
tbody tr:nth-child(even){background:#F8FAFD;}
tbody td:first-child{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;}
.faq details{border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:none;}
.faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 64px 22px 24px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:background-color .18s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:#F8FAFD;}
.faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;
  width:28px;height:28px;margin-top:-14px;border-radius:50%;
  border:1px solid #C9DAEF;color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:500;line-height:1;
  transition:transform .2s ease,background-color .2s ease;
}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--primary-light);}
.faq .answer{padding:0 64px 24px 24px;font-size:15px;color:var(--text-sub);line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:var(--r-hero);
  padding:56px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  box-shadow:0 18px 44px rgba(22,87,166,.22);
}
.cta-band h2{font-size:26px;color:#fff;margin-bottom:14px;}
.cta-band p{font-size:16px;color:rgba(255,255,255,.84);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ---------- 其它分类 ---------- */
.other-links{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.other-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;color:var(--text);font-weight:600;font-size:16px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.other-link small{display:block;font-size:13px;font-weight:400;color:var(--text-weak);margin-top:4px;}
.other-link:hover{color:var(--primary);border-color:#C9DAEF;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.other-link .arrow{color:var(--primary);font-size:18px;transition:transform .18s ease;}
.other-link:hover .arrow{transform:translateX(3px);}

/* ---------- 页脚 ---------- */
.site-footer{background:#F8FAFD;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--text-sub);max-width:340px;}
.footer-sub{display:flex;gap:10px;margin:22px 0 10px;max-width:380px;}
.input{
  flex:1;min-width:0;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--text-weak);}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,87,166,.14);}
.input.is-error{border-color:var(--err);box-shadow:0 0 0 3px rgba(214,68,59,.12);}
.input.is-ok{border-color:var(--ok);box-shadow:0 0 0 3px rgba(30,158,106,.12);}
.form-msg{font-size:13px;color:var(--text-weak);}
.form-msg.is-ok{color:var(--ok);}
.form-msg.is-error{color:var(--err);}
.footer-col h3{font-size:15px;color:var(--text);margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:var(--text-sub);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);margin-top:44px;padding-top:22px;
  font-size:13.5px;color:var(--text-weak);
}

/* ---------- 断点 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
  .hero-copy h1{font-size:36px;}
  .section{padding:72px 0;}
  .cta-band{padding:48px;}
}

@media (max-width:991px){
  .nav-links{display:none;}
  .header-actions .btn-desktop{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-copy h1{font-size:32px;}
  .hero-float{position:static;max-width:none;margin-top:16px;}
  .zigzag{grid-template-columns:1fr;gap:24px;}
  .zigzag.reverse .zigzag-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:none;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .cta-actions{justify-content:flex-start;}
  .other-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .logo-text span{display:none;}
  .page-hero{padding:28px 0 48px;}
  .hero-copy h1{font-size:27px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .section{padding:52px 0;}
  .section-head h2{font-size:23px;}
  .steps{grid-template-columns:1fr;}
  .step-head::after{display:none;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-right:none;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:none;}
  .faq summary{padding:18px 56px 18px 18px;font-size:15.5px;}
  .faq .answer{padding:0 18px 20px 18px;}
  .cta-band{padding:32px 24px;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .footer-sub{flex-direction:column;max-width:none;}
  .footer-sub .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

@media (max-width:479px){
  .hero-copy h1{font-size:24px;}
  .section-head h2{font-size:21px;}
  .logo-mark{width:36px;height:36px;font-size:17px;}
  .logo-text b{font-size:15.5px;}
  .other-link{font-size:15px;padding:16px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#1657A6;
  --brand-dark:#0E3C77;
  --brand-light:#E8F0FA;
  --accent:#F26430;
  --accent-light:#FDEDE7;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#12202F;
  --muted:#5A6B7D;
  --weak:#93A2B2;
  --success:#1E9E6A;
  --warn:#E0A300;
  --error:#D6443B;
  --dark:#0D2136;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-hero:16px;
  --sh-card:0 1px 2px rgba(18,32,47,.06), 0 8px 24px rgba(18,32,47,.06);
  --sh-hover:0 12px 32px rgba(18,32,47,.10);
  --container:1200px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;line-height:1.4;letter-spacing:0;font-weight:700}
p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--white{background:#fff}
.section--tight{padding:64px 0}
.section-head{max-width:780px;margin-bottom:36px}
.section-title{position:relative;font-size:26px;padding-left:16px;margin-bottom:14px}
.section-title::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--brand)}
.section-sub{color:var(--muted);font-size:15.5px;line-height:1.85}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:600;line-height:1.6;white-space:nowrap}
.badge--accent{background:var(--accent-light);color:var(--accent)}
.badge--outline{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.4;text-align:center;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(0);box-shadow:none}
.btn:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(22,87,166,.24)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d9531f;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(242,100,48,.26)}
.btn-white{background:#fff;color:var(--brand)}
.btn-white:hover{background:#eef4fc;color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.68)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(3px)}

/* 导航 */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(18,32,47,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.logo:hover{text-decoration:none;color:var(--text)}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;flex:0 0 38px}
.logo-text b{display:block;font-size:17px;line-height:1.25;color:var(--text);font-weight:700}
.logo-text span{display:block;font-size:12px;line-height:1.35;color:var(--weak)}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-link{display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;transition:background .18s ease,color .18s ease}
.nav-link:hover{color:var(--brand);background:var(--brand-light);text-decoration:none}
.nav-link.is-active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-mobile-actions{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;padding:0 11px}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 页头 */
.page-hero{
  background:#fff;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(255,255,255,.94),rgba(255,255,255,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:52px 0 60px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--weak);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--weak)}
.page-hero h1{font-size:38px;line-height:1.3;margin-bottom:18px}
.page-hero .lead{font-size:16.5px;color:var(--muted);line-height:1.85;margin-bottom:24px;max-width:620px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.page-hero-media{position:relative;border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sh-card);background:var(--brand-light)}
.page-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-tag{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);color:var(--brand);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px}

/* 对照表 */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card)}
.data-table{min-width:760px}
.data-table th{background:var(--brand);color:#fff;font-size:14px;font-weight:600;text-align:left;padding:15px 20px;white-space:nowrap}
.data-table td{padding:16px 20px;font-size:15px;color:var(--muted);border-top:1px solid var(--line);vertical-align:top;line-height:1.75}
.data-table td strong{display:block;color:var(--text);font-weight:600;margin-bottom:2px}
.data-table tbody tr:nth-child(even){background:#F8FAFD}
.data-table tbody tr:hover{background:var(--brand-light)}
.table-note{margin-top:16px;font-size:13.5px;color:var(--weak)}
.table-note a{font-weight:600}

/* 双栏清单 */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.check-card h3{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:16px}
.card-icon{width:38px;height:38px;border-radius:11px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;flex:0 0 38px}
.card-icon svg{width:20px;height:20px}
.check-list li{position:relative;padding-left:30px;margin-bottom:14px;font-size:15px;color:var(--muted);line-height:1.85}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:18px;height:18px;border-radius:50%;background:var(--brand-light);border:1px solid #cfe0f4}
.check-list li::after{content:"";position:absolute;left:6px;top:11px;width:5px;height:9px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg)}
.check-list strong{color:var(--text);font-weight:600}

/* 深色自查面板 */
.hud{position:relative;overflow:hidden;background:var(--dark);border-radius:var(--r-hero);padding:44px;color:#E6EEF8}
.hud::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 44px),repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 44px)}
.hud-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hud h2{font-size:26px;color:#fff;margin-bottom:14px;padding-left:16px;position:relative}
.hud h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--accent)}
.hud p{color:#A9BDD2;font-size:15.5px;line-height:1.85;margin-bottom:22px}
.hud-list li{position:relative;padding-left:22px;margin-bottom:12px;color:#C8D7E6;font-size:15px}
.hud-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.hud-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.hud-metric{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:18px 16px}
.hud-metric b{display:block;font-size:22px;color:#fff;font-weight:700;margin-bottom:6px}
.hud-metric span{display:block;font-size:13px;color:#9FB3C8;line-height:1.6}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:1px}
.dot--ok{background:var(--success)}
.dot--warn{background:var(--warn)}
.dot--brand{background:#4C93E0}

/* 时间轴 */
.timeline{position:relative;max-width:820px}
.timeline::before{content:"";position:absolute;left:17px;top:14px;bottom:14px;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 32px 54px}
.timeline li:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;background:#fff;border:2px solid var(--brand);color:var(--brand);font-size:15px;font-weight:700;display:grid;place-items:center;z-index:1}
.timeline h3{font-size:18px;margin-bottom:6px}
.timeline p{color:var(--muted);font-size:15px;line-height:1.85}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card)}
.stat{padding:30px 22px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:32px;font-weight:700;color:var(--brand);margin-bottom:6px}
.stat span{font-size:14px;color:var(--muted)}

/* FAQ */
.faq{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 4px;font-size:16px;font-weight:500;cursor:pointer;list-style:none;transition:color .18s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{content:"+";flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);color:var(--brand);font-size:18px;line-height:1;display:grid;place-items:center;transition:transform .2s ease,background .2s ease,color .2s ease}
.faq-item[open] summary{color:var(--brand);font-weight:600}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-body{padding:0 4px 22px;color:var(--muted);font-size:15px;line-height:1.85;max-width:840px}

/* CTA 与分类入口 */
.cta-band{background:var(--brand);border-radius:var(--r-hero);padding:56px;color:#fff;display:grid;grid-template-columns:1.35fr auto;gap:32px;align-items:center}
.cta-band h2{font-size:27px;color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15.5px;line-height:1.85;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cat-links{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.cat-link{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);color:var(--text);font-size:16px;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.cat-link small{display:block;font-size:13.5px;font-weight:400;color:var(--weak);margin-top:4px}
.cat-link:hover{text-decoration:none;color:var(--brand-dark);border-color:#c7dbf3;transform:translateY(-2px);box-shadow:var(--sh-hover)}
.cat-link .arrow{color:var(--brand);transition:transform .18s ease}
.cat-link:hover .arrow{transform:translateX(3px)}

/* 页脚 */
.site-footer{background:#F8FAFD;border-top:1px solid var(--line);padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14.5px;line-height:1.85;max-width:360px}
.footer-sub{display:flex;gap:10px;margin:18px 0 10px;max-width:380px}
.input{flex:1 1 auto;min-width:0;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;font-size:14.5px;color:var(--text);transition:border-color .18s ease,box-shadow .18s ease}
.input::placeholder{color:var(--weak)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,166,.15)}
.input.is-error{border-color:var(--error);box-shadow:0 0 0 3px rgba(214,68,59,.14)}
.input.is-ok{border-color:var(--success);box-shadow:0 0 0 3px rgba(30,158,106,.14)}
.form-msg{font-size:13px;color:var(--weak);margin:0}
.form-msg.is-ok{color:var(--success)}
.form-msg.is-error{color:var(--error)}
.footer-col h3{font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14.5px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:48px;padding:24px 0;border-top:1px solid var(--line);font-size:13.5px;color:var(--weak)}

/* 断点 */
@media (max-width:1199px){
  .container{padding:0 20px}
  .page-hero-inner{gap:36px}
  .page-hero h1{font-size:34px}
  .nav-link{padding:9px 11px;font-size:14.5px}
  .hud{padding:36px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .page-hero-inner{grid-template-columns:1fr;padding:40px 0 48px}
  .page-hero-media{max-width:560px}
  .hud-inner{grid-template-columns:1fr;gap:28px}
  .hud h2{font-size:24px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .check-card{padding:26px}
}
@media (max-width:767px){
  :root{--header-h:64px}
  body{font-size:15.5px}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .nav-toggle{display:flex}
  .nav-actions{display:none}
  .nav-links{position:fixed;top:var(--header-h);left:0;right:0;display:none;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:2px;padding:14px 20px 22px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(18,32,47,.12);max-height:calc(100vh - var(--header-h));overflow-y:auto}
  .nav-links.is-open{display:flex}
  .nav-link{padding:14px 16px;border-radius:10px;font-size:16px}
  .nav-mobile-actions{display:flex;flex-direction:column;gap:10px;margin-top:12px;padding-top:16px;border-top:1px solid var(--line)}
  .page-hero h1{font-size:28px}
  .page-hero .lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .section-title{font-size:22px}
  .check-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:24px 16px}
  .stat:nth-child(odd){border-right:1px solid var(--line)}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .stat b{font-size:26px}
  .hud{padding:26px;border-radius:var(--r-card)}
  .hud-metrics{grid-template-columns:1fr;gap:10px}
  .timeline li{padding-left:46px}
  .tl-dot{width:32px;height:32px;font-size:14px}
  .timeline::before{left:15px}
  .cta-band{padding:28px;border-radius:var(--r-card)}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .cat-links{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-sub{flex-direction:column}
  .footer-sub .btn{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .logo-text span{display:none}
  .page-hero h1{font-size:24px}
  .section-title{font-size:20px}
  .data-table th,.data-table td{padding:13px 14px}
  .check-card{padding:22px}
  .hud-metric b{font-size:20px}
  .stat b{font-size:24px}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --brand:#1657A6;
  --brand-dark:#0E3C77;
  --brand-soft:#E8F0FA;
  --accent:#F26430;
  --accent-soft:#FDEDE6;
  --bg:#F4F7FB;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --text:#12202F;
  --muted:#5A6B7D;
  --faint:#93A2B2;
  --success:#1E9E6A;
  --warning:#E0A300;
  --danger:#D6443B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-hero:16px;
  --shadow-sm:0 1px 2px rgba(18,32,47,.06),0 8px 24px rgba(18,32,47,.06);
  --shadow-lg:0 12px 32px rgba(18,32,47,.10);
  --container:1200px;
  --read:760px;
}

/* ===== Reset / 基础 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid rgba(22,87,166,.35);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}
.num{font-variant-numeric:tabular-nums;}

/* ===== 容器与板块 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-sm{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:28px;
  line-height:1.45;
  font-weight:700;
  letter-spacing:0;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.28em;
  width:4px;height:1em;border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;line-height:1;
  color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:8px 14px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  white-space:nowrap;
}
.badge-live{background:var(--accent-soft);color:var(--accent);}
.badge-muted{background:#EEF3F9;color:var(--muted);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;min-height:44px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(14,60,119,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--brand);}
.btn-white:hover{background:#F1F6FC;color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost-white{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.btn-ghost-white:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-live{background:var(--accent);color:#fff;}
.btn-live:hover{background:#DA5324;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(242,100,48,.25);}
.btn-sm{padding:9px 16px;min-height:40px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover span{transform:translateX(2px);}

/* ===== 表单 ===== */
.input{
  width:100%;height:46px;padding:0 14px;
  font-size:15px;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--faint);}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,87,166,.15);}
.input.is-error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,68,59,.12);}
.input.is-ok{border-color:var(--success);box-shadow:0 0 0 3px rgba(30,158,106,.12);}
.form-msg{font-size:13px;color:var(--faint);margin-top:10px;line-height:1.7;}
.form-msg.is-error{color:var(--danger);}
.form-msg.is-ok{color:var(--success);}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,32,47,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;flex-shrink:0;
  display:grid;place-items:center;
  background:var(--brand);color:#fff;
  border-radius:10px;font-size:18px;font-weight:700;letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:17px;font-weight:700;color:var(--text);}
.logo-text span{font-size:12px;color:var(--faint);}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:10px 14px;min-height:44px;
  font-size:15px;font-weight:500;color:var(--muted);
  border-radius:999px;white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  cursor:pointer;
}
.nav-toggle i{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:background .18s ease;
}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .2s ease;
}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}
.nav-toggle[aria-expanded="true"] i{background:transparent;}
.nav-toggle[aria-expanded="true"] i::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] i::after{transform:translateY(-6px) rotate(-45deg);}

/* ===== 面包屑 ===== */
.breadcrumb{padding:22px 0 0;font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--faint);}
.breadcrumb .current{color:var(--text);font-weight:500;}

/* ===== 页头 ===== */
.page-hero{position:relative;padding:28px 0 72px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(244,247,251,.92),rgba(244,247,251,.99)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.page-hero>.container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;margin-top:28px;}
.hero-copy h1{
  font-size:38px;line-height:1.35;font-weight:700;
  letter-spacing:0;margin:18px 0 0;
}
.hero-copy .lead{margin-top:18px;font-size:17px;line-height:1.9;color:var(--muted);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-hero);box-shadow:var(--shadow-sm);
}
.hero-figure .float-card{
  position:absolute;left:-18px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px 18px;box-shadow:var(--shadow-lg);min-width:180px;
}
.hero-figure .float-card b{display:block;font-size:24px;color:var(--brand);font-variant-numeric:tabular-nums;}
.hero-figure .float-card span{font-size:13px;color:var(--muted);}

/* ===== 深色数据面板 ===== */
.section-hud{padding-top:0;}
.hud-panel{
  background:var(--brand-dark);color:#fff;
  border-radius:var(--radius-hero);
  padding:36px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.hud-item{padding-left:20px;border-left:1px solid rgba(255,255,255,.18);}
.hud-item:first-child{border-left:none;padding-left:0;}
.hud-item b{
  display:block;font-size:34px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:0;
}
.hud-item b small{font-size:16px;font-weight:600;margin-left:4px;}
.hud-item span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.72);}

/* ===== 时间轴 ===== */
.timeline{position:relative;margin-top:8px;}
.timeline li{position:relative;padding-left:68px;padding-bottom:36px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:attr(data-step);
  position:absolute;left:0;top:0;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);
  color:var(--brand);font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-sm);
}
.timeline li::after{
  content:"";position:absolute;left:21.5px;top:48px;bottom:0;width:1px;background:var(--line);
}
.timeline li:last-child::after{display:none;}
.timeline .tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease;
}
.timeline .tl-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);}
.timeline h3{font-size:18px;font-weight:700;line-height:1.5;}
.timeline p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.8;}
.timeline .tl-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}

/* ===== 对照表 ===== */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow-x:auto;-webkit-overflow-scrolling:touch;
}
table.compare{min-width:680px;font-size:15px;}
table.compare thead th{
  background:var(--brand);color:#fff;font-weight:600;
  text-align:left;padding:16px 20px;font-size:14px;letter-spacing:.02em;
  white-space:nowrap;
}
table.compare tbody td{padding:16px 20px;border-top:1px solid var(--line);color:var(--muted);line-height:1.7;}
table.compare tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
table.compare tbody tr:nth-child(even){background:#FAFCFE;}
table.compare tbody tr:hover{background:var(--brand-soft);}
.table-note{margin-top:14px;font-size:13px;color:var(--faint);}

/* ===== 双栏清单 ===== */
.two-lists{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.list-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
}
.list-card h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px;}
.list-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0;}
.list-card h3 .dot.alt{background:var(--accent);}
.list-card ul{margin-top:18px;display:flex;flex-direction:column;gap:14px;}
.list-card li{
  position:relative;padding-left:22px;font-size:15px;color:var(--muted);line-height:1.8;
}
.list-card li::before{
  content:"";position:absolute;left:0;top:.68em;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand-soft);border:2px solid var(--brand);
}
.list-card li b{color:var(--text);font-weight:600;}

/* ===== FAQ ===== */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.faq details{border-top:1px solid var(--line);}
.faq details:first-child{border-top:none;}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;min-height:44px;
  font-size:16px;font-weight:500;color:var(--text);
  transition:background-color .18s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:#FAFCFE;}
.faq .faq-icon{
  width:28px;height:28px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .22s ease,background-color .18s ease,color .18s ease;
}
.faq details[open] summary{color:var(--brand);}
.faq details[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq .faq-body{padding:0 26px 24px;font-size:15px;color:var(--muted);line-height:1.85;max-width:820px;}

/* ===== CTA 带 ===== */
.cta-band{
  background:var(--brand);color:#fff;border-radius:var(--radius-hero);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;letter-spacing:0;}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.82);max-width:620px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 其它分类入口 ===== */
.alt-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px;}
.alt-links .btn{min-width:200px;}

/* ===== 页脚 ===== */
.site-footer{background:#F8FAFD;border-top:1px solid var(--line);margin-top:0;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--muted);line-height:1.85;max-width:360px;}
.footer-sub{display:flex;gap:10px;margin-top:20px;max-width:380px;}
.footer-sub .input{height:44px;}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}

/* ===== 加载 / 空态（预留） ===== */
.skeleton{
  background:#E9EEF5;border-radius:var(--radius-img);
  animation:pulse 1.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 24px;text-align:center;
}
.empty-state .ring{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  border:1px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-size:22px;background:var(--brand-soft);
}
.empty-state p{font-size:15px;color:var(--muted);}
.empty-state .btn{margin-top:20px;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .hero-grid{gap:40px;}
  .hero-copy h1{font-size:34px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:520px;}
}
@media (max-width:991px){
  .section{padding:66px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/9;}
  .hero-figure .float-card{left:16px;bottom:16px;}
  .hud-panel{grid-template-columns:repeat(2,1fr);gap:28px;}
  .hud-item:nth-child(3){border-left:none;padding-left:0;}
  .cta-band{padding:44px;}
  .two-lists{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  body{font-size:15px;}
  .nav-inner{height:64px;gap:12px;}
  .logo-text span{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-outline{display:none;}
  .nav-actions .btn{padding:9px 14px;font-size:14px;min-height:40px;}
  .nav-links{
    position:fixed;left:0;right:0;top:64px;z-index:55;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 18px 20px;box-shadow:0 16px 32px rgba(18,32,47,.12);
  }
  .nav-links.is-open{display:flex;}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:10px;}
  .hero-copy h1{font-size:27px;line-height:1.4;}
  .hero-copy .lead{font-size:15.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .page-hero{padding:20px 0 52px;}
  .hud-panel{padding:26px 22px;}
  .hud-item b{font-size:27px;}
  .timeline li{padding-left:56px;}
  .timeline li::before{width:38px;height:38px;font-size:14px;}
  .timeline li::after{left:18.5px;top:42px;}
  .timeline .tl-card{padding:18px 18px;}
  .faq summary{padding:18px;font-size:15px;}
  .faq .faq-body{padding:0 18px 20px;}
  .cta-band{padding:32px 24px;border-radius:var(--radius-card);}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .alt-links .btn{flex:1 1 100%;min-width:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-sub{flex-direction:column;max-width:100%;}
  .footer-sub .btn{width:100%;}
  .site-footer{padding:48px 0 24px;}
}
@media (max-width:479px){
  .container{padding:0 15px;}
  .hero-copy h1{font-size:24px;}
  .hud-panel{grid-template-columns:1fr;}
  .hud-item{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.18);padding-top:18px;}
  .hud-item:first-child{border-top:none;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .hero-figure .float-card{position:static;margin-top:14px;left:auto;bottom:auto;box-shadow:var(--shadow-sm);}
}