/* roulang page: index */
:root{
  --brand:#1D5BD6;
  --brand-600:#1748AC;
  --brand-soft:rgba(29,91,214,.10);
  --accent:#FF7A2F;
  --accent-600:#F06A1E;
  --accent-soft:rgba(255,122,47,.12);
  --success:#12B886;
  --success-soft:rgba(18,184,134,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#16202E;
  --ink-2:#4A5568;
  --ink-3:#8A94A6;
  --border:#E4E9F2;
  --line:#EEF1F7;
  --dark:#101826;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.09);
  --sh-3:0 14px 36px rgba(16,32,64,.13);
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-600)}
h1,h2,h3,h4{line-height:1.32;font-weight:700;color:var(--ink);margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid rgba(29,91,214,.45);outline-offset:2px;border-radius:8px}
.row{max-width:1200px;margin-left:auto;margin-right:auto;display:flex;flex-wrap:wrap}
.row>.columns{flex:0 0 auto;min-width:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 顶部品牌行 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:60}
.brand-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  background:linear-gradient(135deg,var(--brand) 0%,#3D82F0 55%,var(--accent) 130%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;
  box-shadow:0 6px 16px rgba(29,91,214,.28);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:.4px;line-height:1.4}
.brand-actions{display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box i{position:absolute;left:14px;color:var(--ink-3);font-size:14px}
.search-box input{
  height:42px;width:230px;padding:0 14px 0 36px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:var(--bg);color:var(--ink);font-size:14px;
  transition:border-color .22s ease,background .22s ease,box-shadow .22s ease;
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(29,91,214,.12)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
  transition:background .22s ease,color .22s ease;
}
.hamburger:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,32,64,.08)}
.channel-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:15px 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;transition:color .22s ease,background .22s ease;border-radius:8px;
}
.channel-link:hover{color:var(--brand);background:var(--brand-soft)}
.channel-link.active{color:var(--brand);font-weight:600}
.channel-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;
  border-radius:2px;background:var(--brand);
}
.channel-link i{font-size:13px;opacity:.85}

/* ---------- 抽屉（移动端） ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,24,38,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:290px;max-width:84vw;background:#fff;z-index:90;
  transform:translateX(-102%);transition:transform .28s ease;padding:20px;
  display:flex;flex-direction:column;gap:18px;box-shadow:var(--sh-2);
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:#fff;color:var(--ink-2);font-size:18px;line-height:1;
}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 14px;border-radius:10px;color:var(--ink-2);font-size:15px;font-weight:500;
}
.drawer-nav a:hover{background:var(--bg);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FC 100%)}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.14;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(900px 420px at 78% 18%,rgba(29,91,214,.10),transparent 66%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;gap:44px}
.hero-copy{flex:1 1 500px;min-width:0}
.hero-visual{flex:1 1 400px;min-width:0}
.pill-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--accent-soft);color:var(--accent-600);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.pill-tag i{font-size:12px}
.hero h1{
  margin:20px 0 0;font-size:clamp(28px,5vw,44px);letter-spacing:-.5px;
  font-weight:700;color:var(--ink);
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{margin-top:16px;font-size:clamp(16px,2vw,19px);color:var(--ink-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;padding-top:24px;border-top:1px dashed var(--border)}
.hero-point{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-2);font-weight:500}
.hero-point i{color:var(--success);font-size:15px}
.hero-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--border);background:#fff}
.hero-figure img{border-radius:0;width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;background:rgba(16,24,38,.72);color:#fff;
  font-size:13px;padding:7px 13px;border-radius:var(--r-pill);backdrop-filter:blur(6px);
}
.hero-float{
  position:absolute;right:-14px;top:26px;background:#fff;border:1px solid var(--border);
  border-radius:14px;box-shadow:var(--sh-2);padding:12px 16px;display:flex;align-items:center;gap:10px;
}
.hero-float i{color:var(--brand);font-size:18px}
.hero-float strong{display:block;font-size:15px;line-height:1.3}
.hero-float span{font-size:12px;color:var(--ink-3)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section--soft{background:#fff}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);padding:6px 14px;border-radius:var(--r-pill);
  letter-spacing:.4px;
}
.section-head h2{margin-top:16px;font-size:clamp(22px,3.4vw,32px)}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}

/* ---------- 卖点区 ---------- */
.feature-row{display:flex;flex-wrap:wrap;align-items:center;gap:40px;margin-bottom:56px}
.feature-row:last-of-type{margin-bottom:0}
.feature-row--reverse{flex-direction:row-reverse}
.feature-media{flex:1 1 380px;min-width:0}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-1)}
.feature-body{flex:1 1 420px;min-width:0}
.feature-num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:12px;background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:15px;
}
.feature-body h3{margin:16px 0 10px;font-size:20px}
.feature-body p{color:var(--ink-2);font-size:15.5px}
.feature-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.feature-list li{display:flex;align-items:flex-start;gap:9px;font-size:15px;color:var(--ink-2)}
.feature-list i{color:var(--success);margin-top:5px;font-size:13px}
.data-band{
  margin-top:64px;background:var(--brand-soft);border:1px solid rgba(29,91,214,.16);
  border-radius:var(--r-card);padding:28px 24px;
}
.data-band-grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between}
.data-item{flex:1 1 180px;min-width:140px;text-align:center}
.data-item b{display:block;font-family:Inter,system-ui,sans-serif;font-size:28px;color:var(--brand);line-height:1.2}
.data-item span{display:block;margin-top:6px;font-size:14px;color:var(--ink-2)}

/* ---------- 步骤演示区 ---------- */
.steps{display:flex;flex-direction:column;gap:0}
.step{display:flex;flex-wrap:wrap;align-items:center;gap:36px;padding:34px 0;border-bottom:1px dashed var(--border)}
.step:last-child{border-bottom:none}
.step--reverse{flex-direction:row-reverse}
.step-media{flex:0 0 260px}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.step-body{flex:1 1 380px;min-width:0;display:flex;gap:18px}
.step-badge{
  flex:0 0 46px;width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;box-shadow:0 8px 18px rgba(29,91,214,.26);
}
.step-body h3{font-size:19px;margin-bottom:8px}
.step-body p{color:var(--ink-2);font-size:15.5px}
.step-note{margin-top:10px;font-size:13.5px;color:var(--ink-3)}

/* ---------- 证据区 ---------- */
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.mo{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;transition:transform .25s ease,box-shadow .25s ease}
.mo:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.mo-stat{grid-column:span 2}
.mo-stat b{font-family:Inter,system-ui,sans-serif;font-size:30px;color:var(--brand);display:block;line-height:1.2}
.mo-stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2)}
.mo-quote{grid-column:span 3;display:flex;flex-direction:column;gap:14px}
.mo-quote .quote-text{font-size:15.5px;color:var(--ink-2);line-height:1.8}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:auto}
.quote-avatar{
  width:42px;height:42px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.quote-user strong{display:block;font-size:14.5px}
.quote-user span{display:block;font-size:13px;color:var(--ink-3)}
.mo-wide{grid-column:span 3;background:linear-gradient(135deg,rgba(29,91,214,.08),rgba(255,122,47,.10));border-color:rgba(29,91,214,.14)}
.mo-wide h3{font-size:18px;margin-bottom:10px}
.mo-wide p{font-size:15px;color:var(--ink-2)}

/* ---------- 资讯列表（CMS） ---------- */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.news-head h2{font-size:clamp(22px,3.4vw,32px);margin-top:14px}
.news-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.news-more i{font-size:12px;transition:transform .22s ease}
.news-more:hover i{transform:translateX(4px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.news-cover{display:block;overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-cat{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--accent-600);
  background:var(--accent-soft);padding:3px 12px;border-radius:var(--r-pill);
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-sum{
  font-size:14.5px;color:var(--ink-2);line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-3);
}
.news-meta i{margin-right:5px}
.news-card--lead{grid-column:span 3;flex-direction:row}
.news-card--lead .news-cover{flex:0 0 46%;max-width:46%}
.news-card--lead .news-cover img{height:100%;aspect-ratio:auto;min-height:240px}
.news-card--lead .news-body{padding:30px}
.news-card--lead .news-title{font-size:22px;-webkit-line-clamp:3}
.news-card--lead .news-sum{font-size:15.5px;-webkit-line-clamp:3}
.news-empty{
  grid-column:1/-1;background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.news-empty i{font-size:32px;color:var(--ink-3)}
.news-empty p{margin:16px 0 20px;color:var(--ink-2)}

/* ---------- 方案区 ---------- */
.plans{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:stretch}
.plan{
  flex:1 1 340px;max-width:440px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px 28px;
  display:flex;flex-direction:column;position:relative;transition:transform .25s ease,box-shadow .25s ease;
}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.plan--featured{border:2px solid var(--brand);box-shadow:var(--sh-2)}
.plan-flag{
  position:absolute;top:-13px;right:24px;background:var(--accent);color:#fff;
  font-size:12.5px;font-weight:600;padding:4px 14px;border-radius:var(--r-pill);
  letter-spacing:.4px;box-shadow:0 6px 14px rgba(255,122,47,.3);
}
.plan-name{font-size:16px;font-weight:600;color:var(--ink-2)}
.plan-price{display:flex;align-items:flex-end;gap:8px;margin:14px 0 6px}
.plan-price b{font-family:Inter,system-ui,sans-serif;font-size:38px;line-height:1;color:var(--ink);font-weight:700}
.plan-price span{font-size:14px;color:var(--ink-3);padding-bottom:5px}
.plan-desc{font-size:14.5px;color:var(--ink-2);padding-bottom:20px;border-bottom:1px solid var(--line)}
.plan-list{margin:22px 0 28px;display:flex;flex-direction:column;gap:13px;flex:1}
.plan-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2)}
.plan-list i{color:var(--success);font-size:13px;margin-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;padding:20px 22px;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .22s ease,background .22s ease;
}
.faq-q:hover{color:var(--brand);background:rgba(29,91,214,.035)}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 20px}
.faq-a p{font-size:15.5px;color:var(--ink-2);line-height:1.8}

/* ---------- 结尾 CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:24px;background:var(--dark);
  padding:64px 48px;display:flex;flex-wrap:wrap;align-items:center;gap:32px;
  justify-content:space-between;
}
.cta-inner::after{
  content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.20;pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text h2{color:#fff;font-size:clamp(22px,3.2vw,30px)}
.cta-text p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.68);padding:72px 0 0;font-size:14.5px}
.footer-grid{display:flex;flex-wrap:wrap;gap:36px;padding-bottom:48px}
.footer-brand{flex:1 1 300px;min-width:260px}
.footer-brand .brand{color:#fff;margin-bottom:18px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-brand p{color:rgba(255,255,255,.62);font-size:14.5px;line-height:1.8;max-width:340px}
.footer-col{flex:1 1 170px;min-width:150px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.3px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14.5px}
.footer-col a:hover{color:#fff}
.footer-contact li{color:rgba(255,255,255,.66);display:flex;gap:10px;align-items:flex-start;font-size:14.5px}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;width:300px;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:20px;z-index:70;opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .float-title{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:14px}
.float-cta .float-link{display:block;text-align:center;margin-top:12px;font-size:14px;color:var(--ink-2)}
.float-cta .float-link:hover{color:var(--brand)}
.float-close{
  position:absolute;top:10px;right:10px;width:28px;height:28px;border:0;border-radius:50%;
  background:var(--bg);color:var(--ink-3);font-size:15px;line-height:1;
}
.float-close:hover{background:var(--brand-soft);color:var(--brand)}
.mobile-cta{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1300px){
  .float-cta{right:16px;bottom:16px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .cta-band{padding:0 0 72px}
  .hero{padding:56px 0 48px}
  .hero-grid{gap:34px}
  .feature-row{gap:30px;margin-bottom:44px}
  .mosaic{grid-template-columns:repeat(4,1fr)}
  .mo-stat{grid-column:span 2}
  .mo-quote{grid-column:span 4}
  .mo-wide{grid-column:span 4}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--lead{grid-column:span 2;flex-direction:column}
  .news-card--lead .news-cover{flex:0 0 auto;max-width:100%}
  .news-card--lead .news-cover img{aspect-ratio:16/9;min-height:0;height:auto}
  .step--reverse{flex-direction:row}
}
@media (max-width:768px){
  .brand-text{font-size:16px}
  .brand-sub{display:none}
  .search-box{display:none}
  .hamburger{display:flex}
  .channel-bar{display:none}
  .float-cta{display:none}
  .hero-float{display:none}
  .feature-row,.feature-row--reverse{flex-direction:column;gap:20px;margin-bottom:40px}
  .feature-media,.feature-body{flex:1 1 100%}
  .step,.step--reverse{flex-direction:column;align-items:flex-start;gap:18px}
  .step-media{flex:0 0 auto;width:100%}
  .mosaic{grid-template-columns:1fr}
  .mo-stat,.mo-quote,.mo-wide{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card--lead{grid-column:span 1}
  .news-card--lead .news-body{padding:20px}
  .cta-inner{padding:44px 26px;border-radius:20px}
  .footer-grid{gap:28px;padding-bottom:36px}
  .mobile-cta{
    display:flex;align-items:center;gap:12px;position:fixed;left:0;right:0;bottom:0;z-index:75;
    background:#fff;border-top:1px solid var(--border);padding:9px 16px calc(9px + env(safe-area-inset-bottom));
    box-shadow:0 -6px 20px rgba(16,32,64,.08);
  }
  .mobile-cta .btn{flex:1 1 auto;height:44px}
  .mobile-cta-link{
    flex:0 0 auto;font-size:14px;font-weight:600;color:var(--ink-2);padding:0 8px;
    display:flex;align-items:center;height:44px;
  }
  .site-footer{padding-bottom:70px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .section{padding:52px 0}
  .hero{padding:40px 0 36px}
  .hero-cta{gap:10px}
  .hero-cta .btn{width:100%}
  .hero-points{gap:14px 20px}
  .section-head{margin-bottom:32px}
  .plan{padding:26px 22px}
  .faq-q{font-size:16px;padding:17px 18px}
  .faq-a{padding:0 18px}
  .faq-item.open .faq-a{padding:0 18px 18px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --primary:#1D5BD6;
  --primary-dark:#1749AB;
  --primary-soft:rgba(29,91,214,.08);
  --primary-06:rgba(29,91,214,.06);
  --accent:#FF7A2F;
  --accent-soft:rgba(255,122,47,.12);
  --green:#12B886;
  --green-soft:rgba(18,184,134,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#16202E;
  --ink-2:#4A5568;
  --ink-3:#8A94A6;
  --border:#E4E9F2;
  --line:#EEF1F7;
  --footer-bg:#101826;
  --shadow-1:0 2px 8px rgba(16,32,64,.06);
  --shadow-2:0 8px 24px rgba(16,32,64,.09);
  --shadow-3:0 14px 36px rgba(16,32,64,.13);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.78;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid rgba(29,91,214,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
}
.container > .row{max-width:none;margin-left:-12px;margin-right:-12px;}
.row .columns,.row .column{padding-left:12px;padding-right:12px;}
.row{max-width:100%;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  transition:all .24s ease;
  white-space:nowrap;
  border:1px solid transparent;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(29,91,214,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(29,91,214,.28);}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-06);color:var(--primary-dark);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.24);}
.btn-accent:hover{background:#EC6A20;color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
}
.pill-accent{background:var(--accent-soft);color:#D9611A;}
.pill-green{background:var(--green-soft);color:#0E8F68;}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:all .26s ease;
}
.card:hover{box-shadow:var(--shadow-3);transform:translateY(-3px);}

.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:92px 0;}}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,3.4vw,32px);}
.section-head p{margin-top:12px;color:var(--ink-2);max-width:720px;font-size:15.5px;}

/* ---------- 品牌行 ---------- */
.site-header{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:20;
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:68px;
  padding:10px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;
  flex:0 0 42px;
  border-radius:12px;
  background:linear-gradient(135deg,#2E6BE6,#1D5BD6 55%,#12B886);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
  box-shadow:0 6px 14px rgba(29,91,214,.24);
}
.brand-text{display:block;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.brand-sub{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.6px;}
.brand-tools{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 14px;
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  background:#F9FAFD;
  transition:all .22s ease;
}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{
  border:0;background:transparent;outline:none;width:190px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px var(--primary-06);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--border);
  border-radius:var(--r-btn);
  color:var(--ink);
  font-size:17px;
}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;
  top:0;
  z-index:30;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease;
}
.channel-bar.is-stuck{box-shadow:0 6px 18px rgba(16,32,64,.08);}
.channel-inner{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  padding:6px 0;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:44px;
  padding:0 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:all .22s ease;
}
.channel-link i{font-size:13px;opacity:.85;}
.channel-link:hover{color:var(--primary);background:var(--primary-06);border-radius:8px;}
.channel-link.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600;}

/* ---------- 页头带 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 52px;
  background:
    linear-gradient(180deg,rgba(246,248,252,.86),rgba(246,248,252,.97)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.page-hero{padding:64px 0 76px;}}
.page-hero .pill{margin-bottom:16px;}
.page-hero h1{font-size:clamp(28px,5vw,44px);letter-spacing:-.4px;}
.hero-lead{margin-top:14px;font-size:17px;color:var(--ink-2);max-width:640px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-2);font-weight:500;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--primary);font-weight:600;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:26px;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  padding:8px 16px;
  box-shadow:var(--shadow-1);
}
.hero-points i{color:var(--green);}

/* ---------- 图文交替 ---------- */
.feature-block{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
  align-items:center;
  padding:32px 0;
}
.feature-block + .feature-block{border-top:1px solid var(--line);}
@media (min-width:900px){
  .feature-block{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0;}
  .feature-block.reverse .feature-media{order:2;}
}
.feature-media{position:relative;}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
}
.feature-media .float-badge{
  position:absolute;
  left:18px;
  bottom:-16px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  padding:9px 18px;
  font-size:13.5px;
  font-weight:600;
  color:var(--primary);
  box-shadow:var(--shadow-2);
}
.feature-text h2{font-size:clamp(20px,3vw,27px);margin-bottom:14px;}
.feature-text > p{color:var(--ink-2);font-size:15.5px;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--ink-2);
}
.check-list i{
  flex:0 0 22px;
  width:22px;height:22px;
  margin-top:4px;
  border-radius:50%;
  background:var(--green-soft);
  color:#0E8F68;
  font-size:11px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}

/* ---------- 步骤时间线 ---------- */
.steps-wrap{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:28px 22px;
  box-shadow:var(--shadow-1);
}
@media (min-width:1024px){.steps-wrap{padding:44px 48px;}}
.timeline{position:relative;display:grid;gap:0;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:14px;
  bottom:14px;
  width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(29,91,214,.12));
}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:40px 1fr;
  gap:20px;
  padding:16px 0;
}
.timeline-num{
  position:relative;
  z-index:1;
  width:40px;height:40px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--primary);
  color:var(--primary);
  font-family:var(--font-num);
  font-weight:700;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.timeline-item.is-done .timeline-num{background:var(--primary);color:#fff;}
.timeline-body h3{font-size:18px;margin-bottom:6px;}
.timeline-body p{color:var(--ink-2);font-size:15px;}
.timeline-body .tip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:10px;
  font-size:13px;
  color:var(--ink-3);
}
.timeline-body .tip i{color:var(--accent);}

/* ---------- 数据带 ---------- */
.data-band{
  background:var(--primary-soft);
  border:1px solid rgba(29,91,214,.14);
  border-radius:var(--r-card);
  padding:26px 22px;
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:640px){.data-band{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.data-band{grid-template-columns:repeat(4,1fr);padding:34px 40px;}}
.data-item{display:flex;gap:14px;align-items:flex-start;}
.data-item i{
  flex:0 0 36px;
  width:36px;height:36px;
  border-radius:11px;
  background:#fff;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  box-shadow:var(--shadow-1);
}
.data-item strong{display:block;font-size:16.5px;font-weight:600;color:var(--ink);}
.data-item span{display:block;font-size:13.5px;color:var(--ink-2);margin-top:2px;line-height:1.6;}

/* ---------- 提示卡组 ---------- */
.tip-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.tip-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1100px){.tip-grid{grid-template-columns:repeat(3,1fr);}}
.tip-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:all .26s ease;
}
.tip-card:hover{box-shadow:var(--shadow-3);transform:translateY(-3px);}
.tip-card .icon{
  width:44px;height:44px;
  border-radius:13px;
  background:var(--primary-soft);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  margin-bottom:16px;
}
.tip-card h3{font-size:17.5px;margin-bottom:8px;}
.tip-card p{color:var(--ink-2);font-size:14.8px;}

/* ---------- FAQ ---------- */
.faq-box{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background .22s ease,color .22s ease;
}
.faq-q:hover{background:#FAFBFE;color:var(--primary);}
.faq-q .mark{
  flex:0 0 26px;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--border);
  color:var(--primary);
  font-size:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .26s ease,background .26s ease,color .26s ease;
}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-q .mark{transform:rotate(45deg);background:var(--primary);color:#fff;border-color:var(--primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
  padding:0 22px;
}
.faq-item.is-open .faq-a{max-height:420px;padding:0 22px 20px;}
.faq-a p{color:var(--ink-2);font-size:15.3px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  padding:38px 26px;
  background:
    linear-gradient(135deg,rgba(23,73,171,.94),rgba(29,91,214,.92) 60%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  box-shadow:var(--shadow-2);
}
@media (min-width:1024px){.cta-band{padding:52px 56px;}}
.cta-band h2{color:#fff;font-size:clamp(22px,3.2vw,30px);}
.cta-band p{color:rgba(255,255,255,.86);margin-top:12px;max-width:640px;font-size:15.5px;}
.cta-band .hero-cta{margin-top:26px;}
.btn-ghost-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost-white:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{background:#F1F5FE;color:var(--primary-dark);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.72);
  padding:56px 0 26px;
  margin-top:8px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.5);}
.footer-brand p{margin-top:16px;font-size:14.3px;line-height:1.85;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:14.3px;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.3px;color:rgba(255,255,255,.68);}
.footer-contact i{margin-top:5px;color:var(--accent);}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13.2px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.66);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:26px;
  bottom:26px;
  width:300px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-3);
  padding:20px;
  z-index:40;
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta h3{font-size:16px;margin-bottom:6px;}
.float-cta p{font-size:13.6px;color:var(--ink-2);margin-bottom:14px;}
.float-close{
  position:absolute;top:10px;right:12px;
  width:26px;height:26px;
  border-radius:50%;
  color:var(--ink-3);
  font-size:12px;
}
.float-close:hover{background:var(--line);color:var(--ink);}
.mobile-bar{display:none;}

@media (max-width:767px){
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-inner{display:none;flex-direction:column;align-items:stretch;padding:8px 0 12px;}
  .channel-bar.is-open .channel-inner{display:flex;}
  .channel-link{border-bottom:0;border-radius:10px;justify-content:flex-start;}
  .channel-link.active{background:var(--primary-soft);}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    position:fixed;
    left:0;right:0;bottom:0;
    height:60px;
    padding:0 16px calc(env(safe-area-inset-bottom,0px));
    background:rgba(255,255,255,.98);
    border-top:1px solid var(--border);
    box-shadow:0 -6px 18px rgba(16,32,64,.08);
    z-index:50;
  }
  .mobile-bar span{font-size:13.4px;color:var(--ink-2);}
  body{padding-bottom:64px;}
  .site-footer{padding-bottom:76px;}
}
@media (max-width:639px){
  .brand-text{font-size:15.5px;}
  .brand-sub{font-size:11.5px;}
  .hero-cta .btn{width:100%;}
  .brand-tools .btn{display:none;}
}

/* roulang page: article */
:root{
  --brand:#1D5BD6;
  --brand-dark:#1749AE;
  --brand-soft:rgba(29,91,214,.08);
  --brand-soft-2:rgba(29,91,214,.14);
  --accent:#FF7A2F;
  --accent-soft:rgba(255,122,47,.12);
  --green:#12B886;
  --green-soft:rgba(18,184,134,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --dark:#101826;
  --ink:#16202E;
  --ink-2:#4A5568;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --line-2:#EEF1F7;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.09);
  --sh-3:0 14px 36px rgba(16,32,64,.13);
  --font: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5{margin:0;font-weight:600;line-height:1.3;color:var(--ink);letter-spacing:.1px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid rgba(29,91,214,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ============ 品牌行 ============ */
.site-header{position:relative;z-index:70;}
.brand-bar{background:#fff;border-bottom:1px solid var(--line-2);}
.brand-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:70px;padding:10px 0;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 42px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1D5BD6,#4C86F0);
  color:#fff;font-size:19px;box-shadow:0 6px 16px rgba(29,91,214,.28);
}
.brand-text{display:block;font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--ink);line-height:1.25;}
.brand-sub{display:block;font-size:12px;color:var(--ink-3);letter-spacing:.4px;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;min-width:230px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  transition:border-color .22s ease,background-color .22s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-soft);}
.search-box i{color:var(--ink-3);font-size:13px;}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--ink);padding:0;
}
.search-box input::placeholder{color:var(--ink-3);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink-2);font-size:16px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--brand);border-color:var(--brand-soft-2);}

/* ============ 频道行 ============ */
.channel-bar{
  position:sticky;top:0;z-index:65;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.channel-bar.is-stuck{box-shadow:0 6px 18px rgba(16,32,64,.07);}
.channel-inner{
  display:flex;align-items:center;gap:4px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:15px 14px;font-size:15px;color:var(--ink-2);white-space:nowrap;
  border-bottom:2px solid transparent;position:relative;top:1px;
}
.channel-link i{font-size:13px;opacity:.85;}
.channel-link:hover{color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(29,91,214,.26);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,91,214,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(29,91,214,.35);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.28);}
.btn-accent:hover{background:#F06A1E;color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 17px;font-size:14px;}
.btn-block{width:100%;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:13px;font-weight:500;line-height:1.5;
}
.pill-brand{background:var(--brand-soft);color:var(--brand);}
.pill-accent{background:var(--accent-soft);color:#E2631A;}
.pill-green{background:var(--green-soft);color:#0B8F68;}

/* ============ 页头带 ============ */
.page-hero{
  position:relative;
  padding:34px 0 30px;
  background-image:linear-gradient(180deg,rgba(246,248,252,.86),rgba(246,248,252,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-2);
}
.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-3);margin-bottom:14px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb i{font-size:10px;color:#B9C2D4;}
.breadcrumb .current{color:var(--ink-3);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章布局 ============ */
.article-main{padding:40px 0 72px;}
.article-row{margin-left:-14px;margin-right:-14px;}
.article-row .column{padding-left:14px;padding-right:14px;float:none;}

.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:38px 42px 42px;
}
.article-title{
  font-size:clamp(24px,3.4vw,34px);
  font-weight:700;line-height:1.34;letter-spacing:.2px;
  color:var(--ink);margin-bottom:18px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--ink-3);
  padding-bottom:20px;border-bottom:1px solid var(--line-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{font-size:12.5px;color:#A9B3C6;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D3DAE6;display:inline-block;padding:0;}
.article-meta .pill-cat{padding:4px 12px;font-size:12.5px;border-radius:999px;background:var(--accent-soft);color:#E2631A;font-weight:500;}

.article-body{padding-top:28px;font-size:16.5px;line-height:1.85;color:#26313F;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:22px;font-weight:700;color:var(--ink);
  margin:36px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:linear-gradient(180deg,var(--brand),#5C90F2);
}
.article-body h3{font-size:18px;font-weight:600;color:var(--ink);margin:28px 0 12px;}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body strong{font-weight:600;color:var(--ink);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--accent);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:9px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:2px;
  background:var(--brand);opacity:.75;transform:rotate(45deg);
}
.article-body ol{counter-reset:oli;}
.article-body ol li::before{
  counter-increment:oli;content:counter(oli);
  position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  font-size:11.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:0 0 22px;padding:16px 22px;
  border-left:3px solid var(--brand);
  background:#F2F6FD;border-radius:0 12px 12px 0;
  color:var(--ink-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:10px 0 22px;box-shadow:var(--sh-1);}
.article-body figure{margin:0 0 22px;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;}
.article-body th{
  text-align:left;padding:12px 14px;font-weight:600;color:var(--ink);
  background:#F3F6FC;border-bottom:1px solid var(--line);
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line-2);color:var(--ink-2);}
.article-body tbody tr:nth-child(even){background:#FAFBFE;}
.article-body hr{border:0;border-top:1px solid var(--line-2);margin:32px 0;}

.article-empty{
  padding:64px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-card);background:#FBFCFE;
}
.article-empty i{font-size:34px;color:#C3CCDC;margin-bottom:16px;display:block;}
.article-empty h2{font-size:20px;margin-bottom:10px;}
.article-empty p{color:var(--ink-2);font-size:15px;max-width:460px;margin:0 auto 22px;}

.article-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:38px;padding-top:24px;border-top:1px solid var(--line-2);
}
.article-foot .back-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--ink-2);font-weight:500;}
.article-foot .back-link:hover{color:var(--brand);}
.article-foot .tags{display:flex;gap:8px;flex-wrap:wrap;}

/* ============ 侧栏 ============ */
.sidebar{position:sticky;top:84px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px 22px 20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);font-size:14px;}
.side-list li + li{border-top:1px solid var(--line-2);}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--ink-2);line-height:1.6;
}
.side-list a:hover{color:var(--brand);}
.side-list .num{
  flex:0 0 22px;height:22px;border-radius:7px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.side-card.side-tip{background:linear-gradient(160deg,#1D5BD6,#3C77E8);border-color:transparent;color:#fff;}
.side-card.side-tip h3{color:#fff;}
.side-card.side-tip h3 i{color:#BFD4FF;}
.side-card.side-tip p{font-size:14px;color:rgba(255,255,255,.86);margin-bottom:16px;}
.side-card.side-tip .btn{background:#fff;color:var(--brand);box-shadow:none;}
.side-card.side-tip .btn:hover{background:#EAF1FF;transform:translateY(-2px);}

/* ============ 相关推荐 ============ */
.related-section{padding:8px 0 76px;}
.section-head{margin-bottom:26px;}
.section-head h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;}
.section-head p{color:var(--ink-2);font-size:14.5px;margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D7E0F0;}
.news-thumb{position:relative;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-tag{align-self:flex-start;margin-bottom:10px;}
.news-title{
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand);}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);padding-top:14px;border-top:1px solid var(--line-2);
}
.news-foot .more{color:var(--brand);font-weight:600;font-size:13.5px;}

/* ============ CTA 带 ============ */
.cta-band{
  padding:46px 0;
  background-image:linear-gradient(120deg,rgba(29,91,214,.94),rgba(76,134,240,.9)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.6vw,27px);font-weight:700;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.88);font-size:15px;max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-2px);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;width:300px;z-index:90;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:none;}
.float-cta.dismissed{display:none;}
.float-close{position:absolute;right:12px;top:12px;width:26px;height:26px;border-radius:8px;color:var(--ink-3);font-size:13px;display:flex;align-items:center;justify-content:center;}
.float-close:hover{background:var(--bg);color:var(--ink);}
.float-title{font-size:15.5px;font-weight:700;color:var(--ink);padding-right:24px;}
.float-text{font-size:13.5px;color:var(--ink-2);line-height:1.65;}
.float-link{font-size:13.5px;color:var(--brand);text-align:center;font-weight:600;}
.float-link:hover{color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#9BA6B8;padding:64px 0 0;font-size:14px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;font-size:17px;}
.footer-brand .brand-sub{color:#6F7C92;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2C69E0,#5C90F2);box-shadow:none;}
.footer-brand p{color:#8B96A9;line-height:1.85;font-size:13.5px;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:#9BA6B8;font-size:13.5px;}
.footer-col ul a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#9BA6B8;font-size:13.5px;line-height:1.7;}
.footer-contact i{color:#5C90F2;font-size:13px;margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:#78849A;
}
.footer-bottom a{color:#9BA6B8;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .search-box{min-width:180px;}
  .sidebar{position:static;margin-top:26px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-card{padding:32px 30px 34px;}
}
@media (max-width:767px){
  .brand-sub{display:none;}
  .brand-text{font-size:16px;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-inner{flex-wrap:nowrap;}
  .channel-bar.is-open .channel-inner{flex-wrap:wrap;padding-bottom:8px;overflow-x:visible;}
  .channel-link{padding:12px 12px;}
  .page-hero{padding:24px 0 22px;}
  .article-main{padding:26px 0 52px;}
  .article-card{padding:24px 20px 28px;border-radius:14px;}
  .article-body{font-size:15.5px;line-height:1.8;}
  .article-body h2{font-size:19px;margin-top:28px;}
  .article-body h3{font-size:17px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .float-cta{
    left:0;right:0;bottom:0;width:auto;border-radius:16px 16px 0 0;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));
    flex-direction:row;align-items:center;gap:12px;box-shadow:0 -6px 20px rgba(16,32,64,.12);
  }
  .float-cta .float-title{font-size:14px;flex:1;padding-right:0;margin:0;}
  .float-cta .float-text,
  .float-cta .float-link,
  .float-cta .float-close{display:none;}
  .float-cta .btn{width:auto;padding:10px 18px;font-size:14px;}
  body{padding-bottom:78px;}
}
@media (max-width:520px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-mark{width:38px;height:38px;flex-basis:38px;font-size:17px;}
  .article-title{font-size:22px;}
  .article-meta{font-size:13px;gap:8px;}
  .btn{padding:12px 18px;font-size:14.5px;}
  .btn-sm{padding:9px 14px;font-size:13.5px;}
}

/* roulang page: category3 */
:root{
  --brand:#1D5BD6;
  --brand-dark:#1749A8;
  --brand-soft:rgba(29,91,214,.08);
  --accent:#FF7A2F;
  --accent-soft:rgba(255,122,47,.12);
  --mint:#12B886;
  --mint-soft:rgba(18,184,134,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --footer-bg:#101826;
  --ink:#16202E;
  --ink2:#4A5568;
  --ink3:#8A94A6;
  --line:#E4E9F2;
  --line2:#EEF1F7;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh1:0 2px 8px rgba(16,32,64,.06);
  --sh2:0 8px 24px rgba(16,32,64,.09);
  --sh3:0 14px 36px rgba(16,32,64,.13);
  --ease:.24s ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5,h6{color:var(--ink);font-weight:700;line-height:1.3;margin:0 0 .55em;letter-spacing:.1px;}
h1{font-size:clamp(28px,5vw,44px);}
h2{font-size:clamp(22px,3.4vw,32px);}
h3{font-size:18px;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.15em;}
li{margin-bottom:.35em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(29,91,214,.35);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1248px;margin:0 auto;padding:0 32px;}
.row{max-width:1248px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;}
.row .row{margin-left:0;margin-right:0;}
.column,.columns{padding-left:12px;padding-right:12px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(29,91,214,.24);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,91,214,.3);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,47,.24);}
.btn-accent:hover{background:#E9六6 1C;color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(29,91,214,.38);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--brand);}
.btn-white:hover{background:#F3F6FE;color:var(--brand-dark);transform:translateY(-2px);}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:10px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60;background:#fff;}
.brand-bar{border-bottom:1px solid var(--line2);}
.brand-row{display:flex;align-items:center;justify-content:space-between;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);
  display:grid;place-items:center;color:#fff;font-size:17px;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(29,91,214,.26);
}
.brand-text{display:block;font-size:17px;font-weight:700;line-height:1.25;color:var(--ink);}
.brand-sub{display:block;font-size:12px;color:var(--ink3);line-height:1.5;letter-spacing:.3px;}
.brand-actions{display:flex;align-items:center;gap:12px;justify-content:flex-end;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:210px;height:40px;padding:0 14px 0 36px;font-size:14px;color:var(--ink);
  background:#F4F7FC;border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.nav-search input::placeholder{color:var(--ink3);}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,91,214,.14);}
.nav-search i{position:absolute;left:14px;color:var(--ink3);font-size:13px;pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink);font-size:16px;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);transition:box-shadow var(--ease);
}
.channel-bar.is-stuck{box-shadow:0 6px 18px rgba(16,32,64,.08);}
.channel-inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;padding:6px 0;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  padding:11px 14px;font-size:15px;font-weight:500;color:var(--ink2);
  border-bottom:2px solid transparent;transition:color var(--ease),background-color var(--ease),border-color var(--ease);
}
.channel-link i{font-size:13px;opacity:.85;}
.channel-link:hover{color:var(--brand);background:var(--brand-soft);}
.channel-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{display:none;position:fixed;inset:0;z-index:120;}
.nav-drawer.is-open{display:block;}
.nav-drawer-mask{position:absolute;inset:0;background:rgba(16,24,38,.5);}
.nav-drawer-panel{
  position:absolute;top:0;right:0;width:82%;max-width:340px;height:100%;
  background:#fff;padding:22px 20px 40px;overflow-y:auto;box-shadow:-12px 0 34px rgba(16,32,64,.18);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink3);letter-spacing:1px;margin:0;}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--ink2);cursor:pointer;}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-link{
  display:flex;align-items:center;gap:10px;padding:14px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink2);border-bottom:1px solid var(--line2);
}
.drawer-link:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-link.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}

/* ---------- 页头带 ---------- */
.page-hero{position:relative;overflow:hidden;background:#fff;padding:52px 0 108px;}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  opacity:.14;filter:saturate(.85);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 48%,rgba(255,255,255,.6) 100%);
}
.page-hero .row{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink3);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{color:var(--ink3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span{color:#C3CBDA;}
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.page-hero h1{max-width:840px;margin-bottom:16px;}
.page-hero-sub{font-size:17px;color:var(--ink2);max-width:660px;margin-bottom:26px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.hero-points{list-style:none;display:flex;gap:26px;flex-wrap:wrap;padding:0;margin:0;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink2);}
.hero-points i{color:var(--mint);font-size:14px;}

/* ---------- 数据带 ---------- */
.stat-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh2);
  padding:28px 26px;margin-top:-64px;position:relative;z-index:10;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;
}
.stat-item{position:relative;padding-left:16px;}
.stat-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand-soft);}
.stat-item:nth-child(2)::before{background:var(--accent-soft);}
.stat-item:nth-child(3)::before{background:var(--mint-soft);}
.stat-num{display:block;font-family:"Inter",system-ui,sans-serif;font-size:28px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-item:nth-child(2) .stat-num{color:var(--accent);}
.stat-item:nth-child(3) .stat-num{color:var(--mint);}
.stat-label{display:block;font-size:13.5px;color:var(--ink3);margin-top:4px;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-white{background:#fff;}
.section-head{max-width:740px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);padding:6px 13px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink2);font-size:16px;margin:0;}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.text-link:hover{gap:10px;}

/* ---------- 问答主区 ---------- */
.qa-layout{align-items:flex-start;}
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.qa-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 20px;box-shadow:var(--sh1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);border-color:#D8E1F3;}
.qa-card h3{font-size:17px;margin:12px 0 10px;display:flex;gap:9px;align-items:flex-start;}
.qa-card h3 i{color:var(--brand);font-size:15px;margin-top:4px;flex:0 0 auto;}
.qa-card p{margin:0;font-size:14.5px;color:var(--ink2);line-height:1.75;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:4px 11px;border-radius:999px;line-height:1.6;
}
.tag-net{background:var(--brand-soft);color:var(--brand);}
.tag-acc{background:var(--accent-soft);color:#D9611B;}
.tag-safe{background:var(--mint-soft);color:#0E9668;}
.tag-bro{background:#EEF1F7;color:var(--ink2);}

/* ---------- 侧栏联系卡 ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh2);padding:24px;}
.side-card h3{font-size:18px;margin-bottom:8px;}
.side-card .side-lead{font-size:14px;color:var(--ink2);margin-bottom:18px;}
.contact-list{list-style:none;padding:0;margin:0 0 18px;}
.contact-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink2);margin-bottom:10px;}
.contact-list i{color:var(--brand);font-size:14px;margin-top:5px;width:16px;text-align:center;}
.contact-form label{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin-bottom:6px;}
.contact-form input,.contact-form textarea{
  width:100%;font-size:14px;color:var(--ink);background:#F8FAFD;
  border:1px solid var(--line);border-radius:var(--r-btn);padding:11px 13px;margin-bottom:14px;
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
  font-family:inherit;
}
.contact-form input{height:44px;}
.contact-form textarea{resize:vertical;min-height:96px;line-height:1.6;}
.contact-form input:focus,.contact-form textarea:focus{
  outline:none;background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,91,214,.14);
}
.contact-form input:invalid:not(:placeholder-shown){border-color:#E5484D;}
.form-note{font-size:13px;color:var(--ink3);margin:12px 0 0;line-height:1.7;}
.side-card.accent-card{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 12px 30px rgba(29,91,214,.25);}
.side-card.accent-card h3{color:#fff;}
.side-card.accent-card .side-lead{color:rgba(255,255,255,.82);}
.side-card.accent-card .contact-list li{color:rgba(255,255,255,.88);}
.side-card.accent-card .contact-list i{color:#fff;}

/* ---------- 排查流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;
  box-shadow:var(--sh1);position:relative;transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh3);}
.step-num{
  width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:14px;
  font-family:"Inter",system-ui,sans-serif;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink2);margin:0;line-height:1.7;}

/* ---------- 提示对照 ---------- */
.signal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.signal-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);transition:transform var(--ease),box-shadow var(--ease);
}
.signal-card:hover{transform:translateY(-3px);box-shadow:var(--sh3);}
.signal-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:18px;flex:0 0 auto;
  background:var(--brand-soft);color:var(--brand);
}
.signal-card.warn .signal-icon{background:var(--accent-soft);color:#D9611B;}
.signal-card.ok .signal-icon{background:var(--mint-soft);color:#0E9668;}
.signal-card.neutral .signal-icon{background:#EEF1F7;color:var(--ink2);}
.signal-card h3{font-size:16.5px;margin-bottom:6px;}
.signal-card p{font-size:14px;color:var(--ink2);margin:0;line-height:1.72;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--sh1);}
.faq-item + .faq-item{border-top:1px solid var(--line2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:20px 22px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:background-color var(--ease),color var(--ease);min-height:44px;
}
.faq-q:hover{background:#F9FBFF;color:var(--brand);}
.faq-q i{color:var(--brand);font-size:15px;flex:0 0 auto;transition:transform .28s ease;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--ink2);line-height:1.78;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand);border-radius:20px;padding:56px 48px;
  color:#fff;box-shadow:0 16px 40px rgba(29,91,214,.22);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.09);
}
.cta-band::after{
  content:"";position:absolute;right:90px;bottom:-120px;width:200px;height:200px;border-radius:50%;
  background:rgba(255,122,47,.22);
}
.cta-inner{position:relative;z-index:2;max-width:680px;}
.cta-eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);color:#fff;padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:16px;margin-bottom:28px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#A7B0C0;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:44px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-sub{color:#7C8798;}
.site-footer .brand-mark{box-shadow:none;}
.footer-brand p{font-size:14px;line-height:1.8;color:#98A2B3;margin:18px 0 0;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#A7B0C0;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A7B0C0;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;width:16px;text-align:center;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.09);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7C8798;
}
.footer-bottom a{color:#98A2B3;}
.footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .row{padding-left:12px;padding-right:12px;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:40px 0 92px;}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .side-stack{position:static;margin-top:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{padding:42px 32px;}
}
@media screen and (max-width:767px){
  .qa-grid{grid-template-columns:1fr;}
  .signal-grid{grid-template-columns:1fr;}
  .qa-layout{display:block;}
}
@media screen and (max-width:639px){
  .container{padding:0 20px;}
  .row{padding-left:10px;padding-right:10px;}
  .column,.columns{padding-left:10px;padding-right:10px;}
  body{font-size:15.5px;}
  .section{padding:52px 0;}
  .section-tight{padding:40px 0;}
  .brand-row{min-height:64px;}
  .brand-text{font-size:15.5px;}
  .brand-sub{font-size:11.5px;}
  .brand-actions{gap:8px;}
  .brand-actions .btn{display:none;}
  .page-hero{padding:30px 0 84px;}
  .page-hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:14px;}
  .stat-band{grid-template-columns:1fr;padding:22px 20px;margin-top:-56px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-actions .btn{width:100%;}
  .side-card{padding:20px;}
  .faq-q{padding:17px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#1D5BD6;
  --brand-600:#1749AE;
  --brand-700:#123A8C;
  --brand-050:rgba(29,91,214,.08);
  --brand-100:rgba(29,91,214,.14);
  --accent:#FF7A2F;
  --accent-600:#E9651C;
  --accent-050:rgba(255,122,47,.12);
  --teal:#12B886;
  --teal-050:rgba(18,184,134,.12);
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#16202E;
  --ink-2:#4A5568;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --line-soft:#EEF1F7;
  --footer:#101826;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(16,32,64,.06);
  --sh-2:0 8px 24px rgba(16,32,64,.09);
  --sh-3:0 14px 36px rgba(16,32,64,.13);
  --ff:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover,a:focus{color:var(--brand-600)}
h1,h2,h3,h4,h5,h6{margin:0 0 12px;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.2px}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid rgba(29,91,214,.45);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-100)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn i{font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(29,91,214,.24)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-600);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,91,214,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(29,91,214,.24)}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(29,91,214,.32)}
.btn-outline:hover,.btn-outline:focus{background:var(--brand-050);color:var(--brand-600);border-color:var(--brand);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.26)}
.btn-accent:hover,.btn-accent:focus{background:var(--accent-600);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand);box-shadow:0 8px 20px rgba(9,26,64,.18)}
.btn-light:hover,.btn-light:focus{background:#F2F6FF;color:var(--brand-600);transform:translateY(-2px)}
.btn-ghost-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:rgba(255,255,255,.2);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.btn-text:hover{color:var(--brand-600)}
.btn-text i{font-size:12px;transition:transform .2s ease}
.btn-text:hover i{transform:translateX(3px)}

/* ---------- 标签与徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.2px;
}
.pill i{font-size:12px}
.pill-soft{background:var(--brand-050);color:var(--brand)}
.pill-accent{background:var(--accent-050);color:#C9551A}
.pill-teal{background:var(--teal-050);color:#0B8F68}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--accent-050);color:#C9551A;white-space:nowrap;
}
.tag-brand{background:var(--brand-050);color:var(--brand)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 rgba(16,32,64,.06)}
.brand-bar{background:#fff}
.brand-inner{display:flex;align-items:center;gap:16px;height:70px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-width:0}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  color:#fff;font-size:18px;
  background:linear-gradient(135deg,#3B7DF0 0%,#1D5BD6 55%,#FF7A2F 165%);
  box-shadow:0 6px 16px rgba(29,91,214,.28);
}
.brand-text{display:block;font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand-sub{display:block;font-size:12px;font-weight:500;color:var(--ink-3);letter-spacing:.4px;white-space:nowrap}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.brand-search{position:relative;display:flex;align-items:center}
.brand-search i{position:absolute;left:13px;color:var(--ink-3);font-size:13px;pointer-events:none}
.brand-search input{
  height:42px;width:236px;border:1px solid var(--line);border-radius:999px;
  background:#F8FAFD;padding:0 16px 0 35px;font-size:14px;color:var(--ink);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.brand-search input::placeholder{color:var(--ink-3)}
.brand-search input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px var(--brand-050)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:16px;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.hamburger:hover{background:var(--brand-050);border-color:rgba(29,91,214,.3);color:var(--brand)}

/* ---------- 频道行 ---------- */
.channel-bar{background:#fff;border-top:1px solid var(--line-soft)}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;border-bottom:2px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.channel-link i{font-size:14px;opacity:.85}
.channel-link:hover{color:var(--brand);background:var(--brand-050)}
.channel-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand)}
.channel-link.active i{opacity:1}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;display:none}
.mobile-drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(16,24,38,.5);animation:fadeIn .2s ease}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(16,32,64,.2);animation:slideIn .25s ease;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideIn{from{transform:translateX(24px);opacity:.6}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-title{font-size:16px;font-weight:700}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 12px;border-radius:10px;
  font-size:15px;color:var(--ink-2);transition:background-color .2s ease,color .2s ease;
}
.drawer-nav a:hover{background:var(--brand-050);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-050);color:var(--brand);font-weight:600}
.drawer-nav i{width:18px;text-align:center;font-size:14px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink-2);display:grid;place-items:center;font-size:15px;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-050);color:var(--brand);border-color:rgba(29,91,214,.3)}

/* ---------- 页头带 ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 64px;border-bottom:1px solid var(--line-soft);background:#EDF2FB}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.17;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,#F6F8FC 0%,rgba(246,248,252,.76) 50%,rgba(255,122,47,.10) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C7CFDD;font-size:11px}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-hero h1{font-size:clamp(28px,5vw,44px);margin:16px 0 14px;max-width:820px}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:660px;margin:0 0 28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:32px 0 0;padding:0}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.88);border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:14px;color:var(--ink-2);font-weight:500;
}
.hero-points i{color:var(--teal);font-size:13px}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1200px){.section{padding:96px 0}}
@media (max-width:639px){.section{padding:52px 0}}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:740px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,3.4vw,32px);margin:12px 0 12px}
.section-head p{color:var(--ink-2);margin:0;font-size:16px}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ---------- 筛选标签（静态视觉） ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.filter-chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:500;box-shadow:var(--sh-1);
}
.filter-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.filter-chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(29,91,214,.24)}
.filter-chip.is-active .dot{background:#fff}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.tile{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tile:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D6E0F2}
.tile-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8EEFA}
.tile-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.tile:hover .tile-media img{transform:scale(1.05)}
.tile-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(29,91,214,0) 55%,rgba(16,32,64,.16) 100%);
}
.tile-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.tile-body h3{font-size:18px;margin:0}
.tile-body p{
  margin:0;font-size:14.5px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tile-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.tile-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand)}
.tile-link i{font-size:12px;transition:transform .2s ease}
.tile:hover .tile-link{color:var(--brand-600)}
.tile:hover .tile-link i{transform:translateX(3px)}
.tile-meta{font-size:12.5px;color:var(--ink-3)}

/* ---------- 方式对照条 ---------- */
.compare-list{display:grid;gap:16px}
.compare-item{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.compare-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6E0F2}
.compare-icon{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-size:20px;color:var(--brand);background:var(--brand-050);
}
.compare-main h3{font-size:18px;margin:0 0 6px}
.compare-main p{margin:0 0 10px;font-size:14.5px;color:var(--ink-2);max-width:640px}
.mini-tags{display:flex;flex-wrap:wrap;gap:8px}
.mini-tags span{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-050);
}
@media (max-width:767px){
  .compare-item{grid-template-columns:44px minmax(0,1fr);gap:16px;padding:20px}
  .compare-icon{width:44px;height:44px;border-radius:13px;font-size:17px}
  .compare-item .btn{grid-column:1 / -1;width:100%}
}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;
  background:linear-gradient(120deg,rgba(29,91,214,.09) 0%,rgba(29,91,214,.05) 46%,rgba(255,122,47,.07) 100%);
  border:1px solid rgba(29,91,214,.13);border-radius:22px;padding:30px 26px;
}
@media (min-width:1024px){
  .stat-band{grid-template-columns:repeat(4,minmax(0,1fr));padding:38px 40px;gap:28px}
}
.stat-item{border-left:3px solid var(--accent);padding-left:16px}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:-.5px}
.stat-num small{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:4px;letter-spacing:0}
.stat-label{font-size:13.5px;color:var(--ink-2);margin-top:4px}

/* ---------- 图文分栏（Foundation 栅格） ---------- */
.split-row{max-width:1200px;margin:0 auto;padding-left:8px;padding-right:8px;align-items:center}
.split-row > .column{padding-left:12px;padding-right:12px}
.split-media{padding-bottom:24px}
@media (min-width:1024px){.split-media{padding-bottom:0;padding-right:26px}}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-2);border:1px solid var(--line);
}
.split-body h2{font-size:clamp(22px,3.2vw,30px);margin:12px 0 14px}
.split-body > p{color:var(--ink-2);margin-bottom:24px}
.check-list{list-style:none;display:grid;gap:14px;padding:0;margin:0}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:15.5px;color:var(--ink-2);line-height:1.7}
.check-list i{color:var(--teal);font-size:15px;margin-top:5px;flex:0 0 auto}
.check-list strong{color:var(--ink);font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-1);
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{border-color:#D6E0F2}
.faq-item[open]{border-color:rgba(29,91,214,.34);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);font-size:12px;
  transition:transform .25s ease,background-color .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-answer{padding:0 22px 20px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:780px}
.faq-answer p{margin:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(118deg,#17409C 0%,#1D5BD6 48%,#3C7DEA 100%);
  border-radius:24px;padding:38px 28px;color:#fff;
  display:grid;gap:24px;box-shadow:0 18px 44px rgba(23,64,156,.24);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.5),rgba(255,122,47,0) 68%);
}
.cta-band > *{position:relative;z-index:2}
@media (min-width:1024px){
  .cta-band{grid-template-columns:minmax(0,1.5fr) auto;align-items:center;padding:48px 52px;}
}
.cta-band h2{color:#fff;font-size:clamp(22px,3.2vw,30px);margin:0 0 12px}
.cta-band p{color:rgba(255,255,255,.84);margin:0;font-size:16px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:639px){.cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#C6CEDC;margin-top:0;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px}}
.footer-brand .brand{color:#fff;margin-bottom:4px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-brand .brand-sub{color:#8C97AB}
.footer-brand p{color:#9AA5B8;font-size:14.5px;line-height:1.75;margin:18px 0 0;max-width:360px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px}
.footer-col ul{list-style:none;display:grid;gap:11px;padding:0;margin:0}
.footer-col a{color:#A9B4C6;font-size:14.5px;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:#fff;padding-left:3px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#A9B4C6;font-size:14.5px;line-height:1.6}
.footer-contact i{color:#6F7C93;margin-top:5px;flex:0 0 auto}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;font-size:13.5px;color:#8C97AB;
}
.footer-bottom a{color:#B7C2D4}
.footer-bottom a:hover{color:#fff}
@media (max-width:1023px){.footer-bottom{padding-bottom:104px}}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:26px;bottom:26px;width:302px;z-index:70;
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-3);
  padding:22px 22px 20px;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta h4{font-size:16px;margin:0 0 8px;padding-right:28px}
.float-cta p{margin:0 0 16px;font-size:13.5px;color:var(--ink-2);line-height:1.7}
.float-close{
  position:absolute;top:12px;right:12px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-3);font-size:12px;
  display:grid;place-items:center;transition:background-color .2s ease,color .2s ease;
}
.float-close:hover{background:var(--brand-050);color:var(--brand)}
.float-note{display:block;margin-top:10px;font-size:13px;color:var(--ink-3)}

.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:75;display:none;
  align-items:center;gap:10px;background:#fff;border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
  box-shadow:0 -10px 28px rgba(16,32,64,.1);
  transform:translateY(115%);transition:transform .3s ease;
}
.mobile-bar.show{transform:translateY(0)}
.mobile-bar .btn{height:46px}
.mobile-bar .bar-link{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:88px;height:46px;
  padding:0 12px;border-radius:10px;border:1px solid var(--line);color:var(--ink-2);
  font-size:14px;font-weight:600;background:#fff;
}
.mobile-bar .bar-link:hover{background:var(--brand-050);color:var(--brand);border-color:rgba(29,91,214,.3)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .float-cta{display:none}
  .mobile-bar{display:flex}
}
@media (max-width:767px){
  .brand-search{display:none}
  .brand-sub{display:none}
  .brand-inner{height:64px}
  .brand-text{font-size:16.5px}
}
@media (max-width:639px){
  .channel-bar{display:none}
  .hamburger{display:inline-flex}
  .brand-actions .btn-sm{display:none}
  .hero-points li{padding:9px 13px;font-size:13px}
  .hero-cta .btn{width:100%}
  .stat-band{padding:24px 20px;gap:18px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px}
}
@media (min-width:640px) and (max-width:1023px){
  .brand-search input{width:180px}
}