/* roulang page: index */
:root{
  --ky-primary:#1D5EA8;
  --ky-primary-800:#143F73;
  --ky-primary-50:#EDF4FB;
  --ky-accent:#2FB8A8;
  --ky-warm:#E08A3C;
  --ky-bg:#F7F9FC;
  --ky-surface:#FFFFFF;
  --ky-band:#EEF5FA;
  --ky-line:#E4ECF4;
  --ky-text:#1F2A37;
  --ky-text-2:#5C6B7F;
  --ky-text-3:#8C9AAB;
  --ky-invert:#E7EFF7;
  --ky-disabled:#B9C6D4;
  --ky-danger:#C4553B;
  --ky-footer:#102A43;
  --ky-r-card:14px;
  --ky-r-btn:10px;
  --ky-r-block:20px;
  --ky-r-badge:6px;
  --ky-shadow:0 1px 2px rgba(16,60,110,.04), 0 10px 24px rgba(16,60,110,.06);
  --ky-shadow-hover:0 14px 32px rgba(16,60,110,.12);
  --ky-shadow-nav:0 2px 12px rgba(16,60,110,.07);
  --ky-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-primary:#1D5EA8;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-border-radius:10px;
  --bs-link-color:#1D5EA8;
  --bs-link-hover-color:#143F73;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ky-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--ky-primary-800);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ky-text);line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(29,94,168,.45);outline-offset:2px;}
.ky-num{font-family:Inter,"PingFang SC",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

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

/* ============ 导航 ============ */
.ky-header{
  position:sticky;top:0;z-index:1040;
  background:var(--ky-surface);
  border-bottom:1px solid var(--ky-line);
  transition:box-shadow .2s ease;
}
.ky-header.is-stuck{box-shadow:var(--ky-shadow-nav);}
.ky-nav{display:flex;align-items:center;gap:32px;height:68px;}
.ky-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.ky-logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--ky-primary) 0%,#2C7FC9 100%);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.ky-logo-mark svg{width:20px;height:20px;display:block;}
.ky-logo-text{font-size:19px;font-weight:700;color:var(--ky-primary-800);letter-spacing:.2px;white-space:nowrap;}
.ky-menu{display:flex;align-items:center;gap:28px;margin:0;}
.ky-menu a{
  position:relative;display:block;padding:22px 0;font-size:15px;
  color:var(--ky-text-2);white-space:nowrap;
}
.ky-menu a:hover{color:var(--ky-primary);}
.ky-menu a.is-active{color:var(--ky-primary);font-weight:500;}
.ky-menu a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  width:20px;margin:0 auto;background:var(--ky-primary);border-radius:2px;
}
.ky-nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.ky-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 16px;
  background:var(--ky-surface);
  border:1px solid var(--ky-line);
  border-radius:999px;
  transition:border-color .18s ease,background .18s ease;
}
.ky-search:focus-within{border-color:var(--ky-primary);background:var(--ky-primary-50);}
.ky-search svg{width:15px;height:15px;flex:0 0 auto;stroke:var(--ky-text-3);}
.ky-search input{
  border:0;background:transparent;width:100%;font-size:14px;color:var(--ky-text);
  outline:none;line-height:1.4;
}
.ky-search input::placeholder{color:var(--ky-text-3);}
.ky-burger{
  display:none;width:42px;height:42px;border:1px solid var(--ky-line);
  border-radius:10px;background:var(--ky-surface);align-items:center;justify-content:center;
}
.ky-burger span{display:block;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;position:relative;}
.ky-burger span::before,.ky-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;
}
.ky-burger span::before{top:-6px;}
.ky-burger span::after{top:6px;}
.ky-mobile{padding:12px 0 20px;}
.ky-mobile-inner{
  background:var(--ky-surface);border:1px solid var(--ky-line);border-radius:16px;
  padding:14px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--ky-shadow);
}
.ky-mobile-inner a.ky-m-link{
  display:block;padding:11px 12px;border-radius:10px;font-size:15px;color:var(--ky-text-2);
}
.ky-mobile-inner a.ky-m-link:hover{background:var(--ky-primary-50);color:var(--ky-primary);}
.ky-mobile-inner a.ky-m-link.is-active{background:var(--ky-primary-50);color:var(--ky-primary);font-weight:600;}
.ky-mobile .ky-search{width:100%;margin:6px 0 4px;}
.ky-mobile .ky-btn{width:100%;justify-content:center;}

/* ============ 按钮 ============ */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--ky-r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.ky-btn--sm{height:40px;padding:0 18px;font-size:14px;font-weight:500;}
.ky-btn--primary{background:var(--ky-primary);color:#fff;}
.ky-btn--primary:hover{background:var(--ky-primary-800);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-shadow-hover);}
.ky-btn--primary:active{transform:translateY(0);}
.ky-btn--ghost{background:transparent;color:var(--ky-primary);border-color:var(--ky-primary);}
.ky-btn--ghost:hover{background:var(--ky-primary-50);color:var(--ky-primary-800);}
.ky-btn--light{background:#fff;color:var(--ky-primary-800);border-color:var(--ky-line);}
.ky-btn--light:hover{border-color:var(--ky-primary);color:var(--ky-primary);}
.ky-btn--outline-invert{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.ky-btn--outline-invert:hover{background:rgba(255,255,255,.12);color:#fff;}
.ky-btn[disabled]{background:var(--ky-disabled);border-color:var(--ky-disabled);color:#fff;cursor:not-allowed;}
.ky-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--ky-primary);
}
.ky-link-arrow svg{width:14px;height:14px;transition:transform .18s ease;}
.ky-link-arrow:hover svg{transform:translateX(3px);}

/* ============ 徽章与标签 ============ */
.ky-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;
  border-radius:var(--ky-r-badge);background:var(--ky-primary-50);
  color:var(--ky-primary);font-size:12px;font-weight:500;line-height:1;white-space:nowrap;
}
.ky-badge--accent{background:rgba(47,184,168,.12);color:#1F8C7F;}
.ky-badge--soft{background:#F2F6FA;color:var(--ky-text-2);}

/* ============ 区块 ============ */
.ky-section{padding:96px 0;}
.ky-section--sm{padding:72px 0;}
.ky-section--band{background:var(--ky-band);}
.ky-sec-head{max-width:760px;}
.ky-sec-head h2{font-size:clamp(24px,2.3vw,32px);margin-bottom:14px;}
.ky-sec-head p{color:var(--ky-text-2);font-size:16px;}
.ky-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--ky-accent);
  letter-spacing:1px;margin-bottom:12px;
}

/* ============ Hero ============ */
.ky-hero{
  position:relative;background:var(--ky-surface);
  border-bottom:1px solid var(--ky-line);overflow:hidden;
}
.ky-hero::before{
  content:"";position:absolute;inset:auto -120px -160px auto;width:620px;height:620px;
  background:radial-gradient(circle at 30% 30%, rgba(47,184,168,.10), rgba(47,184,168,0) 62%);
  pointer-events:none;
}
.ky-hero-inner{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
  min-height:560px;padding:64px 0;
}
.ky-hero-title{
  font-size:clamp(30px,3.6vw,44px);font-weight:700;line-height:1.28;
  letter-spacing:-.4px;margin-bottom:18px;
}
.ky-hero-title em{font-style:normal;color:var(--ky-primary);}
.ky-hero-sub{font-size:18px;color:var(--ky-text-2);max-width:34em;margin-bottom:30px;}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.ky-trust{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;}
.ky-trust-item{padding:0 22px;border-left:1px solid var(--ky-line);}
.ky-trust-item:first-child{padding-left:0;border-left:0;}
.ky-trust-item strong{
  display:block;font-size:20px;font-weight:700;color:var(--ky-primary-800);
  font-variant-numeric:tabular-nums;
}
.ky-trust-item span{font-size:13px;color:var(--ky-text-3);}
.ky-hero-media{position:relative;}
.ky-hero-img{
  width:100%;aspect-ratio:21/13;object-fit:cover;border-radius:var(--ky-r-block);
  background:#EAF1F8;
}
.ky-float-card{
  position:absolute;left:-16px;bottom:26px;background:var(--ky-surface);
  border:1px solid var(--ky-line);border-radius:12px;box-shadow:var(--ky-shadow);
  padding:14px 18px;max-width:230px;
}
.ky-float-card b{display:block;font-size:15px;color:var(--ky-primary-800);margin-bottom:2px;}
.ky-float-card span{font-size:13px;color:var(--ky-text-2);}

/* ============ 痛点 ============ */
.ky-pain-row{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.ky-pain-left{position:sticky;top:104px;align-self:start;}
.ky-pain-left h2{font-size:clamp(24px,2.3vw,32px);margin-bottom:14px;}
.ky-pain-left p{color:var(--ky-text-2);}
.ky-pain-list{border-top:1px solid var(--ky-line);}
.ky-pain-item{
  display:flex;align-items:center;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--ky-line);
}
.ky-pain-num{
  font-family:Inter,system-ui,sans-serif;font-size:15px;font-weight:700;
  color:var(--ky-text-3);flex:0 0 34px;
}
.ky-pain-body{flex:1 1 auto;}
.ky-pain-body h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.ky-pain-body p{font-size:14px;color:var(--ky-text-2);}
.ky-pain-arrow{flex:0 0 auto;color:var(--ky-text-3);transition:transform .18s ease,color .18s ease;}
.ky-pain-item:hover .ky-pain-arrow{color:var(--ky-primary);transform:translateX(4px);}
.ky-pain-item:hover .ky-pain-body h3{color:var(--ky-primary);}

/* ============ 解决方案 ============ */
.ky-solve{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.ky-solve + .ky-solve{margin-top:64px;}
.ky-solve.reverse .ky-solve-media{order:2;}
.ky-solve-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--ky-r-card);
  box-shadow:var(--ky-shadow);background:#EAF1F8;
}
.ky-solve-body h3{font-size:clamp(19px,1.7vw,22px);margin:14px 0 12px;}
.ky-solve-body > p{color:var(--ky-text-2);margin-bottom:18px;}
.ky-check{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;}
.ky-check li{display:flex;gap:10px;font-size:15px;color:var(--ky-text);}
.ky-check li svg{width:17px;height:17px;flex:0 0 auto;margin-top:5px;}

/* ============ 数据带 ============ */
.ky-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ky-stat{text-align:left;padding-right:16px;border-right:1px solid rgba(29,94,168,.14);}
.ky-stat:last-child{border-right:0;}
.ky-stat b{
  display:block;font-family:Inter,system-ui,sans-serif;font-size:clamp(28px,3vw,40px);
  font-weight:700;color:var(--ky-primary-800);line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.ky-stat b i{font-style:normal;font-size:16px;font-weight:600;margin-left:4px;color:var(--ky-warm);}
.ky-stat span{display:block;margin-top:8px;font-size:14px;color:var(--ky-text-2);}

/* ============ 证言 ============ */
.ky-quote-row{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.ky-quote-main{
  position:relative;background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);padding:44px 40px;box-shadow:var(--ky-shadow);
  display:flex;flex-direction:column;justify-content:space-between;
}
.ky-quote-main::before{
  content:"“";position:absolute;top:6px;left:28px;font-size:96px;line-height:1;
  color:var(--ky-accent);opacity:.2;font-family:Georgia,serif;
}
.ky-quote-main blockquote{margin:0 0 28px;font-size:19px;line-height:1.8;color:var(--ky-text);position:relative;}
.ky-person{display:flex;align-items:center;gap:14px;}
.ky-avatar{
  width:48px;height:48px;border-radius:50%;flex:0 0 auto;object-fit:cover;background:#EAF1F8;
}
.ky-person b{display:block;font-size:15px;font-weight:600;}
.ky-person span{font-size:13px;color:var(--ky-text-3);}
.ky-quote-side{display:flex;flex-direction:column;gap:24px;}
.ky-quote-mini{
  flex:1;background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);padding:24px;box-shadow:var(--ky-shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.ky-quote-mini:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-hover);border-color:rgba(29,94,168,.3);}
.ky-quote-mini p{font-size:15px;color:var(--ky-text-2);margin-bottom:16px;}

/* ============ 最新信息 ============ */
.ky-news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.ky-news-feature{
  display:flex;flex-direction:column;height:100%;
  background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);overflow:hidden;box-shadow:var(--ky-shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.ky-news-feature:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-hover);border-color:rgba(29,94,168,.3);}
.ky-news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EAF1F8;}
.ky-news-feature .ky-nf-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.ky-news-feature h3{font-size:19px;margin:14px 0 10px;}
.ky-news-feature h3 a{color:var(--ky-text);}
.ky-news-feature h3 a:hover{color:var(--ky-primary);}
.ky-news-feature p{font-size:14px;color:var(--ky-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ky-meta{margin-top:auto;padding-top:18px;font-size:13px;color:var(--ky-text-3);display:flex;gap:10px;align-items:center;}
.ky-meta i{font-style:normal;color:var(--ky-line);}
.ky-news-list{display:flex;flex-direction:column;gap:16px;height:100%;}
.ky-news-item{
  display:flex;gap:18px;background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);padding:16px;box-shadow:var(--ky-shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.ky-news-item:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-hover);border-color:rgba(29,94,168,.3);}
.ky-news-item img{
  width:132px;height:92px;flex:0 0 auto;object-fit:cover;border-radius:10px;background:#EAF1F8;
}
.ky-news-item .ky-ni-body{display:flex;flex-direction:column;min-width:0;}
.ky-news-item h4{font-size:16px;font-weight:600;margin:8px 0 6px;}
.ky-news-item h4 a{color:var(--ky-text);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ky-news-item h4 a:hover{color:var(--ky-primary);}
.ky-news-item p{
  font-size:13px;color:var(--ky-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-news-item .ky-meta{padding-top:10px;margin-top:auto;}
.ky-empty{
  text-align:center;padding:40px 20px;background:var(--ky-surface);
  border:1px solid var(--ky-line);border-radius:var(--ky-r-card);
}
.ky-empty svg{width:40px;height:40px;margin:0 auto 12px;stroke:var(--ky-text-3);}
.ky-empty p{color:var(--ky-text-2);font-size:14px;margin-bottom:14px;}
.ky-skel{background:linear-gradient(90deg,#EEF5FA 25%,#F7F9FC 37%,#EEF5FA 63%);background-size:400% 100%;animation:ky-pulse 1.4s ease infinite;}
@keyframes ky-pulse{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ============ FAQ ============ */
.ky-faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.ky-faq-item{
  background:var(--ky-surface);border:1px solid var(--ky-line);border-radius:var(--ky-r-card);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.ky-faq-item.is-open{border-color:rgba(29,94,168,.3);box-shadow:var(--ky-shadow);}
.ky-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ky-text);position:relative;
}
.ky-faq-q:hover{color:var(--ky-primary);}
.ky-faq-item.is-open .ky-faq-q{color:var(--ky-primary);}
.ky-faq-item.is-open .ky-faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  background:var(--ky-primary);border-radius:0 4px 4px 0;
}
.ky-faq-sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
}
.ky-faq-sign::before,.ky-faq-sign::after{
  content:"";position:absolute;background:var(--ky-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.ky-faq-sign::before{left:3px;right:3px;top:10px;height:2px;}
.ky-faq-sign::after{top:3px;bottom:3px;left:10px;width:2px;}
.ky-faq-item.is-open .ky-faq-sign::after{transform:scaleY(0);opacity:0;}
.ky-faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.ky-faq-a-inner{padding:0 22px 22px;color:var(--ky-text-2);font-size:15px;line-height:1.8;}

/* ============ CTA ============ */
.ky-cta{
  background:var(--ky-band);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line);
  position:relative;overflow:hidden;
}
.ky-cta::after{
  content:"";position:absolute;left:-100px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle at 50% 50%, rgba(29,94,168,.10), rgba(29,94,168,0) 65%);
}
.ky-cta-inner{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto;}
.ky-cta-inner h2{font-size:clamp(24px,2.3vw,32px);margin-bottom:14px;}
.ky-cta-inner p{color:var(--ky-text-2);margin-bottom:30px;}
.ky-cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ============ 页脚 ============ */
.ky-footer{background:var(--ky-footer);color:var(--ky-invert);padding:72px 0 0;}
.ky-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.ky-footer .ky-logo-text{color:#fff;}
.ky-footer-brand p{font-size:14px;color:#A9BED4;margin:18px 0;max-width:32em;}
.ky-footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:#C7D6E5;}
.ky-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;}
.ky-footer-links{display:flex;flex-direction:column;gap:11px;}
.ky-footer-links a{font-size:14px;color:#C7D6E5;border-bottom:1px solid transparent;}
.ky-footer-links a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5);}
.ky-sub{display:flex;gap:10px;margin-top:6px;}
.ky-sub input{
  height:44px;flex:1 1 auto;min-width:0;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;outline:none;
}
.ky-sub input::placeholder{color:#8FA6BE;}
.ky-sub input:focus{border-color:var(--ky-accent);background:rgba(255,255,255,.1);}
.ky-sub button{height:44px;padding:0 20px;border-radius:999px;border:0;background:var(--ky-primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .18s ease;}
.ky-sub button:hover{background:#2C7FC9;}
.ky-footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA6BE;
}
.ky-footer-bottom a{color:#C7D6E5;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .ky-nav{gap:22px;}
  .ky-menu{gap:20px;}
  .ky-search{width:180px;}
}
@media (max-width:991px){
  .ky-menu,.ky-nav-right .ky-search,.ky-nav-right .ky-btn{display:none;}
  .ky-burger{display:flex;}
  .ky-nav-right .ky-burger{margin-left:auto;}
  .ky-hero-inner{grid-template-columns:1fr;min-height:0;padding:48px 0;gap:32px;}
  .ky-hero-media{order:2;}
  .ky-float-card{left:16px;bottom:16px;}
  .ky-pain-row{grid-template-columns:1fr;gap:28px;}
  .ky-pain-left{position:static;}
  .ky-solve{grid-template-columns:1fr;gap:28px;}
  .ky-solve.reverse .ky-solve-media{order:0;}
  .ky-solve + .ky-solve{margin-top:56px;}
  .ky-stats{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .ky-stat:nth-child(2){border-right:0;}
  .ky-quote-row{grid-template-columns:1fr;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .ky-section{padding:56px 0;}
  .ky-section--sm{padding:56px 0;}
  .ky-hero-sub{font-size:16px;}
  .ky-trust-item{padding:0 14px;}
  .ky-news-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .ky-news-item img{width:104px;height:76px;}
  .ky-quote-main{padding:30px 24px;}
  .ky-quote-main blockquote{font-size:17px;}
  .ky-footer{padding-top:56px;}
}
@media (max-width:575px){
  .ky-container{padding:0 18px;}
  .ky-hero-actions .ky-btn{width:100%;}
  .ky-stats{grid-template-columns:1fr;}
  .ky-stat{border-right:0;border-bottom:1px solid rgba(29,94,168,.14);padding:0 0 18px;}
  .ky-stat:last-child{border-bottom:0;padding-bottom:0;}
  .ky-news-item{flex-direction:column;}
  .ky-news-item img{width:100%;height:150px;}
  .ky-news-item h4 a{white-space:normal;}
  .ky-footer-grid{grid-template-columns:1fr;}
  .ky-cta-actions .ky-btn{width:100%;}
  .ky-trust{flex-direction:column;gap:14px;}
  .ky-trust-item{padding:0;border-left:0;}
}

/* roulang page: category1 */
:root{
  --ky-primary:#1D5EA8;
  --ky-primary-800:#143F73;
  --ky-primary-50:#EDF4FB;
  --ky-accent:#2FB8A8;
  --ky-warm:#E08A3C;
  --ky-bg:#F7F9FC;
  --ky-surface:#FFFFFF;
  --ky-band:#EEF5FA;
  --ky-line:#E4ECF4;
  --ky-text:#1F2A37;
  --ky-text-2:#5C6B7F;
  --ky-text-3:#8C9AAB;
  --ky-dark:#102A43;
  --ky-radius:14px;
  --ky-radius-lg:20px;
  --ky-radius-btn:10px;
  --ky-shadow:0 1px 2px rgba(16,60,110,.04),0 10px 24px rgba(16,60,110,.06);
  --ky-shadow-hover:0 14px 32px rgba(16,60,110,.12);
  --ky-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-primary:#1D5EA8;
  --bs-primary-rgb:29,94,168;
  --bs-link-color:#1D5EA8;
  --bs-link-hover-color:#143F73;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-body-color:#1F2A37;
  --bs-body-bg:#F7F9FC;
  --bs-border-color:#E4ECF4;
  --bs-border-radius:14px;
  --bs-accordion-border-color:#E4ECF4;
  --bs-accordion-btn-focus-box-shadow:none;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-family:var(--ky-font);color:var(--ky-text);line-height:1.35;}
p{margin:0;}
img{max-width:100%;display:block;}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--ky-primary-800);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button,select,textarea{font:inherit;}
:focus-visible{outline:2px solid rgba(29,94,168,.45);outline-offset:2px;}
.ky-container{max-width:1200px;margin:0 auto;padding:0 24px;}
.ky-num{font-family:Inter,"Inter var",var(--ky-font);font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.ky-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--ky-line);
  transition:box-shadow .25s ease;
}
.ky-header.is-scrolled{box-shadow:0 2px 12px rgba(16,60,110,.07);}
.ky-nav{display:flex;align-items:center;gap:28px;height:68px;}
.ky-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.ky-logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--ky-primary) 0%,var(--ky-primary-800) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(29,94,168,.22);
}
.ky-logo-mark svg{width:20px;height:20px;}
.ky-logo-text{font-size:19px;font-weight:700;color:var(--ky-primary-800);letter-spacing:.2px;}
.ky-menu{display:flex;align-items:center;gap:26px;margin-left:8px;flex:1 1 auto;}
.ky-menu a{
  position:relative;display:inline-block;
  padding:23px 2px;font-size:15px;color:var(--ky-text-2);
}
.ky-menu a::after{
  content:"";position:absolute;left:50%;bottom:14px;
  width:0;height:2px;border-radius:2px;background:var(--ky-primary);
  transform:translateX(-50%);transition:width .22s ease;
}
.ky-menu a:hover{color:var(--ky-primary);}
.ky-menu a.is-active{color:var(--ky-primary);font-weight:600;}
.ky-menu a.is-active::after{width:20px;}
.ky-nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.ky-search{position:relative;display:flex;align-items:center;}
.ky-search svg{
  position:absolute;left:13px;width:15px;height:15px;
  stroke:var(--ky-text-3);fill:none;stroke-width:1.8;pointer-events:none;
}
.ky-search input{
  width:220px;height:38px;padding:0 16px 0 34px;
  border:1px solid var(--ky-line);border-radius:999px;
  background:#fff;font-size:14px;color:var(--ky-text);
  transition:border-color .2s ease,background .2s ease;
}
.ky-search input::placeholder{color:var(--ky-text-3);}
.ky-search input:focus{outline:none;border-color:var(--ky-primary);background:var(--ky-primary-50);}
.ky-burger{
  display:none;width:40px;height:40px;border:1px solid var(--ky-line);
  border-radius:10px;background:#fff;position:relative;
}
.ky-burger span{
  position:absolute;left:11px;width:18px;height:2px;border-radius:2px;
  background:var(--ky-primary-800);transition:transform .22s ease,opacity .22s ease;
}
.ky-burger span:nth-child(1){top:14px;}
.ky-burger span:nth-child(2){top:19px;}
.ky-burger span:nth-child(3){top:24px;}
.ky-burger.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.ky-burger.is-open span:nth-child(2){opacity:0;}
.ky-burger.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.ky-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--ky-line);
  padding:12px 24px 20px;
}
.ky-drawer.is-open{display:block;}
.ky-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.ky-drawer nav a{
  padding:12px 14px;border-radius:12px;font-size:15px;color:var(--ky-text-2);
}
.ky-drawer nav a.is-active{background:var(--ky-primary-50);color:var(--ky-primary);font-weight:600;}
.ky-drawer .ky-search{width:100%;margin-bottom:12px;}
.ky-drawer .ky-search input{width:100%;height:44px;}
.ky-drawer .ky-btn{width:100%;justify-content:center;}

/* ---------- 按钮 ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--ky-radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.ky-btn-primary{background:var(--ky-primary);color:#fff;box-shadow:0 6px 16px rgba(29,94,168,.18);}
.ky-btn-primary:hover{background:var(--ky-primary-800);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-shadow-hover);}
.ky-btn-outline{background:transparent;color:var(--ky-primary);border-color:rgba(29,94,168,.45);}
.ky-btn-outline:hover{background:var(--ky-primary-50);color:var(--ky-primary-800);border-color:var(--ky-primary);}
.ky-btn-white{background:#fff;color:var(--ky-primary-800);}
.ky-btn-white:hover{background:#F2F8FF;color:var(--ky-primary-800);transform:translateY(-1px);}
.ky-btn-sm{height:38px;padding:0 16px;font-size:14px;}
.ky-btn:active{transform:translateY(0);}
.ky-link{
  display:inline-flex;align-items:center;
  font-size:15px;font-weight:600;color:var(--ky-primary);
}
.ky-link::after{content:"→";margin-left:6px;transition:transform .2s ease;display:inline-block;}
.ky-link:hover::after{transform:translateX(3px);}

/* ---------- 标签 / 徽章 ---------- */
.ky-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:var(--ky-primary-50);color:var(--ky-primary);
}
.ky-badge-accent{background:rgba(47,184,168,.12);color:#1E8D80;}

/* ---------- 首屏 ---------- */
.ky-hero-cat{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EEF5FA 0%,#F7F9FC 100%);
  padding:52px 0 64px;
}
.ky-hero-cat::before{
  content:"";position:absolute;top:-80px;right:-60px;width:520px;height:320px;
  background-image:radial-gradient(circle at 30% 40%,rgba(47,184,168,.16) 0 2px,transparent 2px),
                   radial-gradient(circle at 70% 70%,rgba(29,94,168,.14) 0 2px,transparent 2px);
  background-size:34px 34px,46px 46px;
  opacity:.55;pointer-events:none;
}
.ky-crumb{
  position:relative;display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ky-text-3);margin-bottom:20px;
}
.ky-crumb a{color:var(--ky-text-2);}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb span.sep{color:#C4D2E0;}
.ky-crumb .current{color:var(--ky-text-3);}
.ky-hero-grid{
  position:relative;display:grid;grid-template-columns:1.12fr .88fr;
  gap:52px;align-items:center;
}
.ky-hero-cat h1{
  font-size:clamp(30px,4vw,44px);font-weight:700;letter-spacing:-.3px;
  margin:14px 0 16px;max-width:16em;
}
.ky-hero-lead{
  font-size:18px;color:var(--ky-text-2);line-height:1.8;max-width:30em;
}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.ky-hero-figure{position:relative;}
.ky-hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--ky-radius);box-shadow:var(--ky-shadow);
  background:#EAF1F8;
}
.ky-hero-float{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border:1px solid var(--ky-line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--ky-shadow);max-width:210px;
}
.ky-hero-float strong{
  display:block;font-size:20px;color:var(--ky-primary-800);
  font-family:Inter,var(--ky-font);font-variant-numeric:tabular-nums;line-height:1.3;
}
.ky-hero-float span{font-size:13px;color:var(--ky-text-2);}
.ky-trustline{
  display:flex;align-items:center;flex-wrap:wrap;gap:0;
  margin-top:30px;padding-top:22px;border-top:1px solid rgba(29,94,168,.12);
}
.ky-trustline div{
  padding:0 26px;border-right:1px solid rgba(29,94,168,.16);
}
.ky-trustline div:first-child{padding-left:0;}
.ky-trustline div:last-child{border-right:0;}
.ky-trustline b{
  display:block;font-size:19px;font-weight:700;color:var(--ky-primary-800);
  font-family:Inter,var(--ky-font);font-variant-numeric:tabular-nums;
}
.ky-trustline em{font-style:normal;font-size:13.5px;color:var(--ky-text-2);}

/* ---------- 通用区块 ---------- */
.ky-section{padding:72px 0;}
.ky-section-lg{padding:78px 0;}
.ky-band{background:var(--ky-band);}
.ky-section-head{max-width:760px;margin-bottom:44px;}
.ky-section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;margin-bottom:12px;}
.ky-section-head p{font-size:16px;color:var(--ky-text-2);line-height:1.85;max-width:34em;}

/* ---------- 长条目流 ---------- */
.ky-longitem{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding-bottom:52px;margin-bottom:52px;border-bottom:1px solid var(--ky-line);
}
.ky-longitem:last-child{padding-bottom:0;margin-bottom:0;border-bottom:0;}
.ky-longitem.is-rev .ky-longitem-media{order:2;}
.ky-longitem.is-rev .ky-longitem-body{order:1;}
.ky-longitem-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--ky-radius);background:#EAF1F8;
  box-shadow:var(--ky-shadow);
}
.ky-item-index{
  font-family:Inter,var(--ky-font);font-size:13px;font-weight:700;
  color:var(--ky-accent);letter-spacing:1px;font-variant-numeric:tabular-nums;
}
.ky-longitem-body h3{font-size:22px;font-weight:600;margin:10px 0 12px;}
.ky-longitem-body p{font-size:16px;color:var(--ky-text-2);line-height:1.85;max-width:32em;}
.ky-checks{margin:20px 0 22px;display:grid;gap:11px;}
.ky-checks li{display:flex;align-items:flex-start;gap:10px;font-size:15.5px;color:var(--ky-text);}
.ky-check-ico{
  flex:0 0 18px;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:rgba(47,184,168,.14);display:flex;align-items:center;justify-content:center;
}
.ky-check-ico svg{width:11px;height:11px;stroke:#1E8D80;fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 对照清单 ---------- */
.ky-compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.ky-panel{
  border-radius:var(--ky-radius);padding:30px 30px 26px;
  border:1px solid var(--ky-line);background:#fff;
}
.ky-panel.is-tint{background:var(--ky-primary-50);border-color:rgba(29,94,168,.14);}
.ky-panel h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.ky-panel>p{font-size:14.5px;color:var(--ky-text-2);margin-bottom:18px;}
.ky-panel ol{counter-reset:kyc;display:grid;gap:14px;}
.ky-panel ol li{
  position:relative;padding-left:34px;font-size:15px;color:var(--ky-text);line-height:1.75;
}
.ky-panel ol li::before{
  counter-increment:kyc;content:counter(kyc,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-family:Inter,var(--ky-font);font-size:13px;font-weight:700;
  color:var(--ky-primary);background:#fff;border:1px solid rgba(29,94,168,.2);
  border-radius:8px;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
}
.ky-panel.is-tint ol li::before{background:#fff;}
.ky-panel li b{font-weight:600;}

/* ---------- FAQ ---------- */
.ky-faq-wrap{max-width:860px;margin:0 auto;}
.ky-faq-item{
  background:#fff;border:1px solid var(--ky-line);
  border-radius:var(--ky-radius);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.ky-faq-item:hover{border-color:rgba(29,94,168,.3);box-shadow:var(--ky-shadow);}
.ky-faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ky-text);cursor:pointer;
  transition:color .2s ease;
}
.ky-faq-q::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:0;border-radius:0 4px 4px 0;background:var(--ky-primary);
  transition:height .25s ease;
}
.ky-faq-q[aria-expanded="true"]{color:var(--ky-primary);}
.ky-faq-q[aria-expanded="true"]::before{height:58%;}
.ky-faq-ico{position:relative;flex:0 0 16px;width:16px;height:16px;}
.ky-faq-ico::before,.ky-faq-ico::after{
  content:"";position:absolute;background:var(--ky-primary);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.ky-faq-ico::before{left:0;top:7px;width:16px;height:2px;}
.ky-faq-ico::after{left:7px;top:0;width:2px;height:16px;}
.ky-faq-q[aria-expanded="true"] .ky-faq-ico::after{transform:scaleY(0);opacity:0;}
.ky-faq-a{padding:0 24px 22px;font-size:15.5px;color:var(--ky-text-2);line-height:1.9;}

/* ---------- CTA ---------- */
.ky-cta{
  position:relative;overflow:hidden;background:var(--ky-band);
  padding:72px 0;text-align:center;
}
.ky-cta::before{
  content:"";position:absolute;left:-80px;bottom:-70px;width:420px;height:260px;
  background-image:radial-gradient(circle at 40% 50%,rgba(29,94,168,.12) 0 2px,transparent 2px),
                   radial-gradient(circle at 80% 20%,rgba(47,184,168,.14) 0 2px,transparent 2px);
  background-size:40px 40px,52px 52px;opacity:.5;pointer-events:none;
}
.ky-cta-inner{position:relative;max-width:720px;margin:0 auto;}
.ky-cta h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;margin-bottom:14px;}
.ky-cta p{font-size:16.5px;color:var(--ky-text-2);line-height:1.85;}
.ky-cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- 页脚 ---------- */
.ky-footer{background:var(--ky-dark);color:#C7D6E5;padding:64px 0 0;margin-top:0;}
.ky-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:44px;
}
.ky-footer h4{font-size:14px;font-weight:600;color:#E7EFF7;margin-bottom:16px;}
.ky-footer p{font-size:14px;line-height:1.85;color:#A9BED4;}
.ky-footer .ky-logo-text{color:#fff;}
.ky-footer .ky-logo{margin-bottom:16px;}
.ky-footer-links{display:flex;flex-direction:column;gap:11px;}
.ky-footer-links a{font-size:14px;color:#C7D6E5;}
.ky-footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.ky-footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:18px;font-size:13.5px;color:#8FA9C2;}
.ky-sub{display:flex;gap:10px;}
.ky-sub input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 16px;border-radius:10px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);
  color:#E7EFF7;font-size:14px;
}
.ky-sub input::placeholder{color:#7E97B0;}
.ky-sub input:focus{outline:none;border-color:rgba(47,184,168,.7);background:rgba(47,184,168,.08);}
.ky-sub button{
  flex:0 0 auto;height:44px;padding:0 18px;border:0;border-radius:10px;
  background:var(--ky-primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.ky-sub button:hover{background:#2A6DBB;transform:translateY(-1px);}
.ky-footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 26px;
  font-size:13px;color:#8FA9C2;
}
.ky-footer-bottom a{color:#C7D6E5;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-search input{width:180px;}
  .ky-menu{gap:20px;}
}
@media (max-width:991.98px){
  .ky-menu,.ky-nav-right .ky-search,.ky-nav-right .ky-btn{display:none;}
  .ky-burger{display:block;}
  .ky-nav{justify-content:space-between;height:60px;}
  .ky-hero-grid{grid-template-columns:1fr;gap:36px;}
  .ky-hero-figure{order:-1;}
  .ky-hero-figure img{aspect-ratio:16/9;}
  .ky-hero-float{left:16px;bottom:16px;}
  .ky-longitem{grid-template-columns:1fr;gap:26px;padding-bottom:40px;margin-bottom:40px;}
  .ky-longitem.is-rev .ky-longitem-media{order:0;}
  .ky-longitem.is-rev .ky-longitem-body{order:0;}
  .ky-longitem-media img{aspect-ratio:16/9;}
  .ky-section,.ky-section-lg,.ky-cta{padding:56px 0;}
  .ky-compare{grid-template-columns:1fr;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .ky-container{padding:0 18px;}
  .ky-hero-cat{padding:34px 0 46px;}
  .ky-hero-cat h1{font-size:28px;}
  .ky-hero-lead{font-size:16.5px;}
  .ky-hero-actions .ky-btn{width:100%;}
  .ky-trustline{padding-top:18px;}
  .ky-trustline div{padding:0 16px;}
  .ky-trustline b{font-size:17px;}
  .ky-trustline em{font-size:12.5px;}
  .ky-longitem-body h3{font-size:19px;}
  .ky-panel{padding:24px 20px;}
  .ky-faq-q{font-size:15.5px;padding:17px 18px;}
  .ky-faq-a{padding:0 18px 18px;}
  .ky-cta-actions .ky-btn{width:100%;}
  .ky-footer-grid{grid-template-columns:1fr;}
  .ky-footer-bottom{flex-direction:column;align-items:flex-start;}
  .ky-sub{flex-direction:column;}
  .ky-sub button{width:100%;}
}

/* roulang page: article */
:root{
  --ky-primary:#1D5EA8;
  --ky-primary-800:#143F73;
  --ky-primary-50:#EDF4FB;
  --ky-accent:#2FB8A8;
  --ky-accent-50:#E8F7F5;
  --ky-warm:#E08A3C;
  --ky-bg:#F7F9FC;
  --ky-surface:#FFFFFF;
  --ky-band:#EEF5FA;
  --ky-line:#E4ECF4;
  --ky-text:#1F2A37;
  --ky-text-2:#5C6B7F;
  --ky-text-3:#8C9AAB;
  --ky-invert:#E7EFF7;
  --ky-danger:#C4553B;
  --ky-footer:#102A43;
  --ky-radius:14px;
  --ky-radius-lg:20px;
  --ky-radius-btn:10px;
  --ky-shadow-sm:0 1px 2px rgba(16,60,110,.04),0 10px 24px rgba(16,60,110,.06);
  --ky-shadow-lg:0 14px 32px rgba(16,60,110,.12);
  --ky-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --ky-num:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;

  --bs-primary:#1D5EA8;
  --bs-body-font-family:var(--ky-font);
  --bs-body-color:#1F2A37;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:14px;
  --bs-link-color:#1D5EA8;
  --bs-link-hover-color:#143F73;
  --bs-border-color:#E4ECF4;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ky-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--ky-primary-800);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ky-text);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(29,94,168,.45);outline-offset:2px;border-radius:4px;}

.ky-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.ky-num{font-family:var(--ky-num);font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--ky-radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.ky-btn-primary{background:var(--ky-primary);color:#fff;box-shadow:0 1px 2px rgba(16,60,110,.10);}
.ky-btn-primary:hover{background:var(--ky-primary-800);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-shadow-lg);}
.ky-btn-primary:active{transform:translateY(0);}
.ky-btn-ghost{background:#fff;color:var(--ky-primary);border-color:rgba(29,94,168,.42);}
.ky-btn-ghost:hover{background:var(--ky-primary-50);color:var(--ky-primary-800);border-color:var(--ky-primary);}
.ky-btn-sm{height:38px;padding:0 16px;font-size:14px;}
.ky-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ky-primary);
}
.ky-link svg{transition:transform .2s ease;}
.ky-link:hover svg{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.ky-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;font-size:12.5px;font-weight:600;
  background:var(--ky-primary-50);color:var(--ky-primary);
}
.ky-badge-accent{background:var(--ky-accent-50);color:#1E8C7F;}

/* ---------- 头部导航 ---------- */
.ky-header{
  position:sticky;top:0;z-index:1040;background:#fff;
  border-bottom:1px solid var(--ky-line);transition:box-shadow .2s ease;
}
.ky-header.is-stuck{box-shadow:0 2px 12px rgba(16,60,110,.07);}
.ky-header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.ky-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.ky-logo-mark{
  width:34px;height:34px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,#1D5EA8 0%,#2FB8A8 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.ky-logo-mark svg{width:20px;height:20px;}
.ky-logo-text{
  font-size:19px;font-weight:700;color:var(--ky-primary-800);letter-spacing:.2px;white-space:nowrap;
}
.ky-menu{display:flex;align-items:center;gap:26px;margin-left:8px;}
.ky-menu a{
  position:relative;font-size:15px;color:var(--ky-text-2);font-weight:500;padding:23px 0;
}
.ky-menu a:hover{color:var(--ky-primary);}
.ky-menu a.is-active{color:var(--ky-primary);font-weight:600;}
.ky-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--ky-primary);
}
.ky-header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.ky-search{
  position:relative;display:flex;align-items:center;width:220px;height:40px;
  background:#fff;border:1px solid var(--ky-line);border-radius:999px;padding:0 14px;gap:8px;
  transition:border-color .2s ease,background .2s ease;
}
.ky-search:focus-within{border-color:var(--ky-primary);background:var(--ky-primary-50);}
.ky-search svg{flex-shrink:0;color:var(--ky-text-3);}
.ky-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ky-text);
}
.ky-search input::placeholder{color:var(--ky-text-3);}
.ky-burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--ky-line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.ky-burger span{display:block;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;position:relative;}
.ky-burger span::before,.ky-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;
}
.ky-burger span::before{top:-6px;}
.ky-burger span::after{top:6px;}
.ky-drawer{display:none;background:#fff;padding:0 24px 20px;}
.ky-drawer.is-open{display:block;}
.ky-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:16px;}
.ky-drawer nav a{
  display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--ky-text-2);font-weight:500;
}
.ky-drawer nav a:hover,.ky-drawer nav a.is-active{background:var(--ky-primary-50);color:var(--ky-primary);}
.ky-drawer .ky-search{width:100%;margin-bottom:12px;}
.ky-drawer .ky-btn{width:100%;}

/* ---------- 面包屑 ---------- */
.ky-crumb{padding:22px 0 6px;}
.ky-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ky-text-3);}
.ky-crumb li{display:flex;align-items:center;gap:8px;}
.ky-crumb li+li::before{content:"/";color:#C7D3E0;}
.ky-crumb a{color:var(--ky-text-2);}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb .is-current{color:var(--ky-text-3);}

/* ---------- 文章头区 ---------- */
.ky-article-head{background:#fff;border-bottom:1px solid var(--ky-line);padding:26px 0 30px;}
.ky-article-head h1{
  font-size:clamp(30px,3.6vw,44px);line-height:1.3;font-weight:700;
  max-width:820px;margin:14px 0 18px;letter-spacing:-.2px;
}
.ky-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--ky-text-3);}
.ky-meta span{display:inline-flex;align-items:center;gap:6px;}
.ky-meta .ky-dot{width:1px;height:12px;background:var(--ky-line);display:inline-block;}

/* ---------- 正文布局 ---------- */
.ky-main{padding:44px 0 8px;}
.ky-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
.ky-article-body{font-size:17px;line-height:1.9;color:var(--ky-text);}
.ky-article-body > * + *{margin-top:18px;}
.ky-article-body h2{
  position:relative;font-size:22px;font-weight:700;line-height:1.5;
  margin:44px 0 16px;padding-left:14px;
}
.ky-article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--ky-primary);
}
.ky-article-body h3{font-size:18px;font-weight:600;margin:30px 0 12px;}
.ky-article-body p{margin:0;color:#28323F;}
.ky-article-body ul,.ky-article-body ol{margin:16px 0;padding-left:4px;}
.ky-article-body li{position:relative;padding-left:22px;line-height:1.85;margin-bottom:8px;color:#28323F;}
.ky-article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--ky-primary);opacity:.75;
}
.ky-article-body ol{counter-reset:kyol;}
.ky-article-body ol li{counter-increment:kyol;}
.ky-article-body ol li::before{
  content:counter(kyol);position:absolute;left:0;top:2px;
  width:18px;font-family:var(--ky-num);font-size:13px;font-weight:700;color:var(--ky-primary);
}
.ky-article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--ky-primary-50);
  border-left:4px solid var(--ky-accent);border-radius:0 var(--ky-radius) var(--ky-radius) 0;
  color:var(--ky-text-2);font-size:16px;line-height:1.85;
}
.ky-article-body img{border-radius:var(--ky-radius);margin:24px auto;width:100%;}
.ky-article-body figure{margin:24px 0;}
.ky-article-body figcaption{font-size:13px;color:var(--ky-text-3);text-align:center;margin-top:10px;}
.ky-article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;overflow:hidden;
  border-radius:var(--ky-radius);border:1px solid var(--ky-line);
}
.ky-article-body th{
  background:var(--ky-primary-50);color:var(--ky-primary-800);font-weight:600;text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--ky-line);font-size:14.5px;
}
.ky-article-body td{padding:12px 14px;border-bottom:1px solid var(--ky-line);color:#28323F;font-size:14.5px;}
.ky-article-body tr:nth-child(even) td{background:#F7F9FC;}
.ky-article-body pre{
  background:var(--ky-footer);color:#DCE7F2;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.75;margin:24px 0;
}
.ky-article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:.92em;
}
.ky-article-body p code,.ky-article-body li code{
  background:var(--ky-band);color:var(--ky-primary-800);padding:2px 6px;border-radius:5px;
}
.ky-article-body hr{border:0;border-top:1px solid var(--ky-line);margin:32px 0;}
.ky-article-body a{text-decoration:underline;text-decoration-color:rgba(29,94,168,.35);text-underline-offset:3px;}

.ky-article-empty{
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  padding:64px 24px;text-align:center;box-shadow:var(--ky-shadow-sm);
}
.ky-article-empty svg{color:#9FB6CD;margin:0 auto 14px;}
.ky-article-empty p{font-size:17px;color:var(--ky-text-2);margin-bottom:18px;}

/* ---------- 侧栏 ---------- */
.ky-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px;}
.ky-side-card{
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  padding:22px;box-shadow:var(--ky-shadow-sm);
}
.ky-side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;}
.ky-side-list{display:flex;flex-direction:column;gap:10px;}
.ky-side-list a{
  display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--ky-text-2);
  padding:10px 12px;border-radius:10px;background:var(--ky-bg);transition:all .18s ease;
}
.ky-side-list a:hover{background:var(--ky-primary-50);color:var(--ky-primary);transform:translateX(2px);}
.ky-side-list a svg{flex-shrink:0;color:var(--ky-accent);}
.ky-side-cta{
  background:linear-gradient(160deg,#1D5EA8 0%,#143F73 100%);
  border-radius:var(--ky-radius);padding:24px;color:#E7EFF7;
  position:relative;overflow:hidden;
}
.ky-side-cta::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:140px;height:140px;border-radius:50%;
  background:rgba(47,184,168,.18);
}
.ky-side-cta h3{color:#fff;font-size:17px;margin-bottom:8px;position:relative;}
.ky-side-cta p{font-size:14px;line-height:1.7;color:#CBDBEA;margin-bottom:16px;position:relative;}
.ky-side-cta .ky-btn{position:relative;background:#fff;color:var(--ky-primary-800);width:100%;}
.ky-side-cta .ky-btn:hover{background:#EAF2FA;color:var(--ky-primary-800);}

/* ---------- 文末操作区 ---------- */
.ky-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--ky-line);}
.ky-tags a{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13.5px;color:var(--ky-text-2);background:var(--ky-band);transition:all .18s ease;
}
.ky-tags a:hover{background:var(--ky-primary-50);color:var(--ky-primary);}
.ky-backlink{margin-top:18px;}

.ky-pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px;}
.ky-pager a{
  display:block;background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  padding:20px 22px;box-shadow:var(--ky-shadow-sm);transition:all .2s ease;
}
.ky-pager a:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-lg);border-color:rgba(29,94,168,.3);}
.ky-pager span{display:block;font-size:12.5px;color:var(--ky-text-3);margin-bottom:8px;}
.ky-pager strong{font-size:15.5px;font-weight:600;color:var(--ky-text);line-height:1.55;display:block;}
.ky-pager a:hover strong{color:var(--ky-primary);}

/* ---------- 相关推荐 ---------- */
.ky-section{padding:72px 0;}
.ky-section-band{background:var(--ky-band);}
.ky-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;}
.ky-section-head h2{font-size:clamp(24px,2.6vw,32px);}
.ky-section-head p{font-size:15px;color:var(--ky-text-2);margin-top:8px;}
.ky-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.ky-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--ky-line);
  border-radius:var(--ky-radius);overflow:hidden;box-shadow:var(--ky-shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;height:100%;
}
.ky-card:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-lg);border-color:rgba(29,94,168,.3);}
.ky-card-media{aspect-ratio:16/9;background:#EAF1F8;overflow:hidden;}
.ky-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.ky-card:hover .ky-card-media img{transform:scale(1.03);}
.ky-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.ky-card-body h3{font-size:17px;font-weight:600;line-height:1.55;}
.ky-card-body h3 a{color:var(--ky-text);}
.ky-card-body h3 a:hover{color:var(--ky-primary);}
.ky-card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ky-text-3);margin-top:auto;}
.ky-card-meta .ky-num{font-family:var(--ky-num);}

/* ---------- CTA 带 ---------- */
.ky-cta{
  background:var(--ky-band);padding:72px 0;text-align:center;position:relative;overflow:hidden;
}
.ky-cta::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;opacity:.07;
}
.ky-cta-inner{position:relative;max-width:720px;margin:0 auto;}
.ky-cta h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.ky-cta p{font-size:16px;color:var(--ky-text-2);margin-bottom:26px;}
.ky-cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.ky-footer{background:var(--ky-footer);color:#C7D6E5;padding:60px 0 0;margin-top:0;}
.ky-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
.ky-footer .ky-logo-text{color:#fff;}
.ky-footer-brand p{font-size:14px;line-height:1.8;color:#A9BED4;margin:16px 0 16px;max-width:330px;}
.ky-footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:#8FA8C0;}
.ky-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.ky-footer-links{display:flex;flex-direction:column;gap:10px;}
.ky-footer-links a{font-size:14px;color:#C7D6E5;}
.ky-footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.ky-sub{display:flex;gap:8px;}
.ky-sub input{
  flex:1;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;outline:none;
}
.ky-sub input::placeholder{color:#8FA8C0;}
.ky-sub input:focus{border-color:var(--ky-accent);background:rgba(255,255,255,.1);}
.ky-sub button{
  height:44px;padding:0 18px;border:0;border-radius:10px;background:var(--ky-primary);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease;
}
.ky-sub button:hover{background:#2A72C4;}
.ky-footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0;font-size:13px;color:#8FA8C0;
}
.ky-footer-bottom a{color:#A9BED4;}
.ky-footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .ky-side{position:static;}
  .ky-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ky-footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .ky-menu{display:none;}
  .ky-header-actions .ky-search{display:none;}
  .ky-header-actions .ky-btn{display:none;}
  .ky-burger{display:inline-flex;}
  .ky-header-inner{height:60px;gap:16px;}
  .ky-section{padding:56px 0;}
  .ky-cta{padding:56px 0;}
  .ky-article-head h1{font-size:28px;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .ky-container{padding:0 18px;}
  .ky-grid-3{grid-template-columns:1fr;}
  .ky-pager{grid-template-columns:1fr;}
  .ky-article-body{font-size:16px;line-height:1.9;}
  .ky-article-body h2{font-size:20px;margin-top:34px;}
  .ky-main{padding:30px 0 0;}
  .ky-section{padding:48px 0;}
  .ky-section-head{flex-direction:column;align-items:flex-start;}
  .ky-footer{padding-top:44px;}
  .ky-footer-grid{grid-template-columns:1fr;gap:28px;}
  .ky-footer-bottom{flex-direction:column;}
  .ky-cta-actions .ky-btn{width:100%;}
}
@media (max-width:519.98px){
  .ky-logo-text{font-size:17px;}
  .ky-article-body table{font-size:13.5px;}
  .ky-article-body th,.ky-article-body td{padding:10px;}
}

/* roulang page: category2 */
:root{
  --ky-primary:#1D5EA8;
  --ky-primary-800:#143F73;
  --ky-primary-50:#EDF4FB;
  --ky-accent:#2FB8A8;
  --ky-warm:#E08A3C;
  --ky-bg:#F7F9FC;
  --ky-surface:#FFFFFF;
  --ky-band:#EEF5FA;
  --ky-line:#E4ECF4;
  --ky-text:#1F2A37;
  --ky-text-2:#5C6B7F;
  --ky-text-3:#8C9AAB;
  --ky-invert:#E7EFF7;
  --ky-dark:#102A43;
  --ky-danger:#C4553B;
  --ky-disabled:#B9C6D4;
  --ky-r-card:14px;
  --ky-r-btn:10px;
  --ky-r-badge:6px;
  --ky-r-block:20px;
  --ky-shadow-sm:0 1px 2px rgba(16,60,110,.04),0 10px 24px rgba(16,60,110,.06);
  --ky-shadow-hover:0 14px 32px rgba(16,60,110,.12);
  --ky-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-primary:#1D5EA8;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-body-color:#1F2A37;
  --bs-body-bg:#F7F9FC;
  --bs-border-radius:14px;
  --bs-border-color:#E4ECF4;
  --bs-link-color:#1D5EA8;
  --bs-link-hover-color:#143F73;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--ky-primary-800);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ky-text);letter-spacing:.005em;}
h1{font-size:clamp(30px,4vw,44px);line-height:1.28;font-weight:700;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;}
h3{font-size:clamp(19px,1.8vw,22px);line-height:1.45;font-weight:600;}
h4{font-size:clamp(17px,1.4vw,18px);line-height:1.5;font-weight:600;}
p{margin:0;}
:focus-visible{outline:2px solid rgba(29,94,168,.45);outline-offset:2px;border-radius:4px;}
.ky-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.ky-num{font-family:Inter,"PingFang SC",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--ky-r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.ky-btn-primary{background:var(--ky-primary);color:#fff;box-shadow:0 6px 16px rgba(29,94,168,.18);}
.ky-btn-primary:hover{background:var(--ky-primary-800);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-shadow-hover);}
.ky-btn-primary:active{transform:translateY(0);}
.ky-btn-ghost{background:#fff;color:var(--ky-primary);border-color:rgba(29,94,168,.45);}
.ky-btn-ghost:hover{background:var(--ky-primary-50);color:var(--ky-primary-800);border-color:var(--ky-primary);}
.ky-btn-sm{height:38px;padding:0 16px;font-size:14px;}
.ky-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ky-primary);}
.ky-link svg{transition:transform .2s ease;}
.ky-link:hover svg{transform:translateX(3px);}

/* ============ 徽章 ============ */
.ky-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;
  border-radius:var(--ky-r-badge);background:var(--ky-primary-50);
  color:var(--ky-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.ky-badge-accent{background:rgba(47,184,168,.12);color:#1F8B7E;}

/* ============ 导航 ============ */
.ky-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--ky-line);transition:box-shadow .25s ease;}
.ky-header.is-scrolled{box-shadow:0 2px 12px rgba(16,60,110,.07);}
.ky-header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.ky-logo{display:flex;align-items:center;gap:10px;flex:none;}
.ky-logo-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#1D5EA8 0%,#2FB8A8 100%);
}
.ky-logo-mark svg{width:20px;height:20px;}
.ky-logo-text{font-size:19px;font-weight:700;color:var(--ky-primary-800);letter-spacing:.01em;}
.ky-menu{display:flex;align-items:center;gap:24px;margin-left:8px;}
.ky-menu a{position:relative;font-size:15px;color:var(--ky-text-2);padding:6px 0;font-weight:500;}
.ky-menu a:hover{color:var(--ky-primary);}
.ky-menu a.is-active{color:var(--ky-primary);font-weight:600;}
.ky-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--ky-primary);
}
.ky-header-tools{margin-left:auto;display:flex;align-items:center;gap:14px;}
.ky-search{position:relative;display:flex;align-items:center;}
.ky-search svg{position:absolute;left:14px;width:15px;height:15px;stroke:var(--ky-text-3);pointer-events:none;}
.ky-search input{
  width:220px;height:40px;border-radius:999px;border:1px solid var(--ky-line);
  background:#fff;padding:0 16px 0 38px;font-size:14px;color:var(--ky-text);
  transition:border-color .2s ease,background .2s ease;
}
.ky-search input::placeholder{color:var(--ky-text-3);}
.ky-search input:focus{outline:none;border-color:var(--ky-primary);background:var(--ky-primary-50);}
.ky-burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--ky-line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.ky-burger span{display:block;width:17px;height:1.8px;background:var(--ky-text-2);border-radius:2px;position:relative;}
.ky-burger span::before,.ky-burger span::after{
  content:"";position:absolute;left:0;width:17px;height:1.8px;background:var(--ky-text-2);border-radius:2px;
}
.ky-burger span::before{top:-5px;}
.ky-burger span::after{top:5px;}
.ky-drawer{display:none;padding:0 24px 20px;}
.ky-drawer.is-open{display:block;}
.ky-drawer-inner{background:#fff;border:1px solid var(--ky-line);border-radius:16px;padding:14px;box-shadow:var(--ky-shadow-sm);}
.ky-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:12px;}
.ky-drawer nav a{padding:11px 12px;border-radius:10px;font-size:15px;color:var(--ky-text-2);}
.ky-drawer nav a.is-active{background:var(--ky-primary-50);color:var(--ky-primary);font-weight:600;}
.ky-drawer .ky-search input{width:100%;}
.ky-drawer .ky-btn{width:100%;margin-top:12px;}

/* ============ Hero ============ */
.ky-hero{position:relative;overflow:hidden;background:var(--ky-band);border-bottom:1px solid var(--ky-line);}
.ky-hero::before{
  content:"";position:absolute;right:-40px;top:20px;width:420px;height:210px;opacity:.08;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='70' viewBox='0 0 140 70'%3E%3Cpath d='M0 45 L20 22 L40 45 L60 22 L80 45 L100 22 L120 45 L140 22' fill='none' stroke='%231D5EA8' stroke-width='1.6'/%3E%3Cpath d='M0 62 L20 39 L40 62 L60 39 L80 62 L100 39 L120 62 L140 39' fill='none' stroke='%232FB8A8' stroke-width='1.4'/%3E%3C/svg%3E");
  pointer-events:none;
}
.ky-hero-inner{position:relative;display:flex;align-items:center;gap:56px;padding:56px 0 60px;}
.ky-hero-copy{flex:1 1 56%;min-width:0;}
.ky-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ky-text-3);margin-bottom:18px;}
.ky-breadcrumb a{color:var(--ky-text-2);}
.ky-breadcrumb a:hover{color:var(--ky-primary);}
.ky-breadcrumb .sep{color:var(--ky-text-3);}
.ky-breadcrumb .current{color:var(--ky-text-3);}
.ky-hero h1{max-width:16em;}
.ky-hero-lead{margin-top:16px;font-size:18px;color:var(--ky-text-2);max-width:32em;line-height:1.8;}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.ky-hero-media{flex:1 1 44%;position:relative;}
.ky-hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--ky-r-block);box-shadow:var(--ky-shadow-sm);}
.ky-float-card{
  position:absolute;left:-18px;bottom:-18px;background:#fff;border:1px solid var(--ky-line);
  border-radius:12px;padding:12px 16px;box-shadow:var(--ky-shadow-sm);max-width:230px;
}
.ky-float-card strong{display:block;font-size:15px;color:var(--ky-primary-800);}
.ky-float-card span{font-size:13px;color:var(--ky-text-3);}

/* ============ 板块通用 ============ */
.ky-section{padding:72px 0;}
.ky-section-alt{background:var(--ky-surface);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line);}
.ky-sec-head{max-width:720px;margin-bottom:36px;}
.ky-sec-head h2{margin-bottom:12px;}
.ky-sec-head p{font-size:16px;color:var(--ky-text-2);max-width:46em;}

/* ============ 侧栏 + 卡片网格 ============ */
.ky-side{position:sticky;top:92px;}
.ky-side-title{font-size:13px;color:var(--ky-text-3);letter-spacing:.08em;margin-bottom:14px;}
.ky-side-list{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--ky-line);}
.ky-side-item{
  position:relative;display:block;padding:12px 14px;font-size:15px;color:var(--ky-text-2);border-radius:0 10px 10px 0;
  transition:background .2s ease,color .2s ease;
}
.ky-side-item:hover{background:var(--ky-surface);color:var(--ky-primary);}
.ky-side-item.is-active{background:var(--ky-surface);color:var(--ky-primary);font-weight:600;box-shadow:var(--ky-shadow-sm);}
.ky-side-item.is-active::before{
  content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--ky-primary);
}
.ky-side-note{margin-top:22px;padding:18px;border-radius:var(--ky-r-card);background:var(--ky-primary-50);border:1px solid rgba(29,94,168,.12);}
.ky-side-note h4{font-size:15px;margin-bottom:8px;color:var(--ky-primary-800);}
.ky-side-note p{font-size:14px;color:var(--ky-text-2);line-height:1.7;margin-bottom:12px;}

.ky-card{
  height:100%;display:flex;flex-direction:column;background:var(--ky-surface);
  border:1px solid var(--ky-line);border-radius:var(--ky-r-card);box-shadow:var(--ky-shadow-sm);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ky-card:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-hover);border-color:rgba(29,94,168,.3);}
.ky-card-media{display:block;overflow:hidden;background:#EAF1F8;}
.ky-card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.ky-card:hover .ky-card-media img{transform:scale(1.03);}
.ky-card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.ky-card-body .ky-badge{align-self:flex-start;margin-bottom:12px;}
.ky-card-body h3{font-size:19px;margin-bottom:10px;}
.ky-card-body h3 a{color:var(--ky-text);}
.ky-card-body h3 a:hover{color:var(--ky-primary);}
.ky-card-body p{
  font-size:15px;color:var(--ky-text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px;
}
.ky-card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--ky-line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ky-text-3);}

/* ============ 数据条 ============ */
.ky-band{background:var(--ky-band);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line);padding:56px 0;}
.ky-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ky-stat{padding-left:20px;border-left:2px solid rgba(29,94,168,.18);}
.ky-stat-num{font-size:40px;font-weight:700;color:var(--ky-primary-800);line-height:1.1;letter-spacing:-.01em;}
.ky-stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--ky-warm);margin-left:4px;}
.ky-stat p{margin-top:10px;font-size:14px;color:var(--ky-text-2);}

/* ============ 步骤 ============ */
.ky-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ky-step{
  position:relative;background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);padding:28px 24px 24px;box-shadow:var(--ky-shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.ky-step:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-hover);border-color:rgba(29,94,168,.3);}
.ky-step-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;
  background:var(--ky-primary-50);color:var(--ky-primary);font-weight:700;font-size:15px;margin-bottom:16px;
}
.ky-step h3{font-size:19px;margin-bottom:10px;}
.ky-step p{font-size:15px;color:var(--ky-text-2);line-height:1.8;}
.ky-step ul{list-style:none;padding:0;margin:14px 0 0;display:flex;flex-direction:column;gap:8px;}
.ky-step li{position:relative;padding-left:22px;font-size:14px;color:var(--ky-text-2);}
.ky-step li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--ky-accent);border-bottom:2px solid var(--ky-accent);
  transform:rotate(-45deg);border-radius:1px;
}

/* ============ FAQ ============ */
.ky-faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.ky-faq details{
  background:var(--ky-surface);border:1px solid var(--ky-line);border-radius:var(--ky-r-card);
  box-shadow:var(--ky-shadow-sm);overflow:hidden;transition:border-color .2s ease;
}
.ky-faq details[open]{border-color:rgba(29,94,168,.3);}
.ky-faq summary{
  position:relative;list-style:none;cursor:pointer;padding:20px 56px 20px 22px;
  font-size:17px;font-weight:600;color:var(--ky-text);line-height:1.6;
}
.ky-faq summary::-webkit-details-marker{display:none;}
.ky-faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--ky-text-3);line-height:1;transition:transform .25s ease,color .25s ease;
}
.ky-faq details[open] summary{color:var(--ky-primary);}
.ky-faq details[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--ky-primary);
}
.ky-faq details[open] summary::after{content:"−";color:var(--ky-primary);transform:translateY(-50%) rotate(180deg);}
.ky-faq .ky-faq-body{padding:0 22px 22px;font-size:15px;color:var(--ky-text-2);line-height:1.85;}

/* ============ CTA ============ */
.ky-cta{background:var(--ky-band);border-top:1px solid var(--ky-line);padding:72px 0;text-align:center;}
.ky-cta h2{margin-bottom:12px;}
.ky-cta p{font-size:16px;color:var(--ky-text-2);max-width:36em;margin:0 auto;}
.ky-cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px;}

/* ============ 页脚 ============ */
.ky-footer{background:var(--ky-dark);color:#C7D6E5;padding:64px 0 0;margin-top:0;}
.ky-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.ky-footer .ky-logo-text{color:#fff;}
.ky-footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9BED4;max-width:34em;}
.ky-footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:6px;font-size:14px;color:#A9BED4;}
.ky-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:18px;letter-spacing:.04em;}
.ky-footer-links{display:flex;flex-direction:column;gap:11px;}
.ky-footer-links a{font-size:14px;color:#C7D6E5;border-bottom:1px solid transparent;padding-bottom:1px;width:fit-content;}
.ky-footer-links a:hover{color:#fff;border-bottom-color:#fff;}
.ky-sub{display:flex;gap:8px;}
.ky-sub input{
  flex:1 1 auto;min-width:0;height:42px;border-radius:8px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;
}
.ky-sub input::placeholder{color:#8FA6BF;}
.ky-sub input:focus{outline:none;border-color:var(--ky-accent);background:rgba(255,255,255,.1);}
.ky-sub button{
  height:42px;padding:0 16px;border-radius:8px;border:none;background:var(--ky-primary);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease;white-space:nowrap;
}
.ky-sub button:hover{background:#2A72C4;}
.ky-footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA6BF;
}
.ky-footer-bottom a{color:#C7D6E5;}
.ky-footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .ky-menu{gap:18px;}
  .ky-search input{width:180px;}
}
@media (max-width:991.98px){
  .ky-menu{display:none;}
  .ky-search{display:none;}
  .ky-burger{display:inline-flex;}
  .ky-header-tools .ky-btn{display:none;}
  .ky-hero-inner{flex-direction:column;gap:32px;padding:40px 0 48px;}
  .ky-hero-copy,.ky-hero-media{flex:1 1 auto;width:100%;}
  .ky-hero-media img{aspect-ratio:16/9;}
  .ky-float-card{left:12px;bottom:-14px;}
  .ky-side{position:static;margin-bottom:32px;}
  .ky-side-list{border-left:none;flex-direction:row;flex-wrap:wrap;gap:8px;}
  .ky-side-item{padding:9px 14px;border-radius:999px;background:var(--ky-surface);font-size:14px;box-shadow:var(--ky-shadow-sm);}
  .ky-side-item.is-active::before{display:none;}
  .ky-side-item.is-active{background:var(--ky-primary-50);}
  .ky-steps{grid-template-columns:1fr;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .ky-section{padding:56px 0;}
  .ky-band{padding:44px 0;}
  .ky-cta{padding:56px 0;}
  .ky-stats{grid-template-columns:repeat(2,1fr);gap:20px;}
  .ky-stat-num{font-size:32px;}
  .ky-hero-lead{font-size:16px;}
}
@media (max-width:575.98px){
  .ky-container{padding:0 16px;}
  .ky-header-inner{height:60px;gap:14px;}
  .ky-logo-text{font-size:17px;}
  .ky-hero-actions .ky-btn{width:100%;}
  .ky-stats{grid-template-columns:1fr;}
  .ky-stat{border-left:none;padding-left:0;padding-top:14px;border-top:1px solid rgba(29,94,168,.18);}
  .ky-footer-grid{grid-template-columns:1fr;}
  .ky-sub{flex-direction:column;}
  .ky-sub button{width:100%;}
  .ky-card-body p{min-height:auto;}
  .ky-faq summary{font-size:16px;padding:16px 48px 16px 16px;}
  .ky-faq .ky-faq-body{padding:0 16px 18px;}
}

/* roulang page: category3 */
:root{
  --ky-primary:#1D5EA8;
  --ky-primary-800:#143F73;
  --ky-primary-50:#EDF4FB;
  --ky-accent:#2FB8A8;
  --ky-warm:#E08A3C;
  --ky-bg:#F7F9FC;
  --ky-surface:#FFFFFF;
  --ky-band:#EEF5FA;
  --ky-line:#E4ECF4;
  --ky-text:#1F2A37;
  --ky-text-2:#5C6B7F;
  --ky-text-3:#8C9AAB;
  --ky-danger:#C4553B;
  --ky-disabled:#B9C6D4;
  --ky-footer-bg:#102A43;
  --ky-radius:14px;
  --ky-radius-sm:6px;
  --ky-radius-btn:10px;
  --ky-radius-lg:20px;
  --ky-shadow-1:0 1px 2px rgba(16,60,110,.04),0 10px 24px rgba(16,60,110,.06);
  --ky-shadow-2:0 14px 32px rgba(16,60,110,.12);
  --ky-font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --ky-font-num:"Inter","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-primary:#1D5EA8;
  --bs-body-font-family:var(--ky-font);
  --bs-border-radius:14px;
  --bs-link-color:#1D5EA8;
  --bs-link-hover-color:#143F73;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ky-font);
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--ky-primary-800);}
h1,h2,h3,h4,h5{margin:0;font-weight:600;color:var(--ky-text);letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid rgba(29,94,168,.45);outline-offset:2px;}
.ky-num{font-family:var(--ky-font-num);font-variant-numeric:tabular-nums;}

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

/* ---------- 顶部导航 ---------- */
.ky-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--ky-line);
  transition:box-shadow .25s ease;
}
.ky-header.is-stuck{box-shadow:0 2px 12px rgba(16,60,110,.07);}
.ky-header-inner{
  display:flex;align-items:center;gap:28px;height:68px;
}
.ky-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.ky-logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--ky-primary) 0%,#2A7BC8 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 10px rgba(29,94,168,.22);
}
.ky-logo-mark svg{width:20px;height:20px;}
.ky-logo-text{
  font-size:19px;font-weight:700;color:var(--ky-primary-800);letter-spacing:.3px;white-space:nowrap;
}
.ky-menu{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
.ky-menu a{
  position:relative;font-size:15px;color:var(--ky-text-2);padding:6px 0;white-space:nowrap;
}
.ky-menu a::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--ky-primary);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.ky-menu a:hover{color:var(--ky-primary);}
.ky-menu a:hover::after{width:20px;}
.ky-menu a.is-active{color:var(--ky-primary);font-weight:600;}
.ky-menu a.is-active::after{width:20px;}
.ky-header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.ky-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 16px;
  background:#fff;border:1px solid var(--ky-line);border-radius:999px;
  transition:border-color .2s ease,background-color .2s ease;
}
.ky-search:focus-within{border-color:var(--ky-primary);background:var(--ky-primary-50);}
.ky-search svg{width:15px;height:15px;flex:0 0 auto;stroke:var(--ky-text-3);}
.ky-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ky-text);
}
.ky-search input::placeholder{color:var(--ky-text-3);}

.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--ky-radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.ky-btn-primary{background:var(--ky-primary);color:#fff;}
.ky-btn-primary:hover{background:var(--ky-primary-800);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(16,60,110,.16);}
.ky-btn-outline{background:#fff;color:var(--ky-primary);border-color:rgba(29,94,168,.45);}
.ky-btn-outline:hover{background:var(--ky-primary-50);color:var(--ky-primary-800);border-color:var(--ky-primary);}
.ky-btn-sm{height:40px;padding:0 18px;font-size:14px;}
.ky-btn-lg{height:50px;padding:0 28px;font-size:16px;}
.ky-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ky-primary);
}
.ky-link-arrow svg{width:15px;height:15px;transition:transform .2s ease;stroke:var(--ky-primary);}
.ky-link-arrow:hover svg{transform:translateX(3px);}

.ky-burger{
  display:none;width:42px;height:42px;border:1px solid var(--ky-line);
  border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.ky-burger span{display:block;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;position:relative;}
.ky-burger span::before,.ky-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ky-primary-800);border-radius:2px;
}
.ky-burger span::before{top:-6px;}
.ky-burger span::after{top:6px;}

.ky-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--ky-line);
  padding:16px 24px 22px;box-shadow:0 12px 24px rgba(16,60,110,.08);
}
.ky-drawer.is-open{display:block;}
.ky-drawer .ky-menu{flex-direction:column;align-items:stretch;gap:4px;margin-bottom:16px;}
.ky-drawer .ky-menu a{padding:12px 14px;border-radius:10px;font-size:16px;}
.ky-drawer .ky-menu a:hover{background:var(--ky-primary-50);}
.ky-drawer .ky-menu a::after{display:none;}
.ky-drawer .ky-menu a.is-active{background:var(--ky-primary-50);}
.ky-drawer .ky-search{width:100%;margin-bottom:12px;}
.ky-drawer .ky-btn{width:100%;}

/* ---------- 首屏 ---------- */
.ky-hero{
  background:var(--ky-band);
  position:relative;overflow:hidden;
  padding:56px 0 64px;
}
.ky-hero::before{
  content:"";position:absolute;right:-80px;top:-60px;width:420px;height:420px;
  background:
    repeating-linear-gradient(60deg,rgba(29,94,168,.07) 0 2px,transparent 2px 22px),
    repeating-linear-gradient(-60deg,rgba(47,184,168,.06) 0 2px,transparent 2px 22px);
  border-radius:50%;pointer-events:none;
}
.ky-hero-grid{
  position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.ky-crumb{
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ky-text-3);margin-bottom:18px;
}
.ky-crumb a{color:var(--ky-text-2);}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb .ky-crumb-sep{color:var(--ky-text-3);}
.ky-crumb .is-current{color:var(--ky-text-3);}
.ky-hero h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25;letter-spacing:.4px;
  color:var(--ky-primary-800);max-width:15em;
}
.ky-hero-sub{
  margin-top:16px;font-size:18px;color:var(--ky-text-2);line-height:1.75;max-width:34em;
}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.ky-hero-trust{
  display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;padding-top:22px;
  border-top:1px solid rgba(29,94,168,.12);
}
.ky-hero-trust div{font-size:14px;color:var(--ky-text-2);}
.ky-hero-trust strong{
  display:block;font-size:22px;font-weight:700;color:var(--ky-primary-800);
  font-family:var(--ky-font-num);font-variant-numeric:tabular-nums;line-height:1.3;
}
.ky-hero-media{position:relative;}
.ky-hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--ky-radius-lg);
  box-shadow:var(--ky-shadow-1);background:#EAF1F8;
}
.ky-hero-chip{
  position:absolute;left:-14px;bottom:22px;
  background:#fff;border:1px solid var(--ky-line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--ky-shadow-1);max-width:230px;
}
.ky-hero-chip strong{
  display:block;font-size:15px;color:var(--ky-primary-800);margin-bottom:2px;
}
.ky-hero-chip span{font-size:13px;color:var(--ky-text-3);}

/* ---------- 通用板块 ---------- */
.ky-section{padding:96px 0;}
.ky-section-sm{padding:72px 0;}
.ky-section-band{background:var(--ky-band);}
.ky-section-white{background:#fff;}
.ky-head{margin-bottom:44px;}
.ky-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--ky-primary-800);}
.ky-head p{margin-top:12px;font-size:16px;color:var(--ky-text-2);max-width:44em;}
.ky-head-center{text-align:center;max-width:860px;margin:0 auto 44px;}
.ky-head-center p{margin-left:auto;margin-right:auto;}
.ky-badge{
  display:inline-block;padding:4px 10px;border-radius:var(--ky-radius-sm);
  background:var(--ky-primary-50);color:var(--ky-primary);
  font-size:12px;font-weight:600;line-height:1.6;
}
.ky-badge-accent{background:rgba(47,184,168,.12);color:#1E8E82;}

/* ---------- 速查卡片 ---------- */
.ky-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ky-card{
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  overflow:hidden;box-shadow:var(--ky-shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.ky-card:hover{transform:translateY(-3px);box-shadow:var(--ky-shadow-2);border-color:rgba(29,94,168,.3);}
.ky-card-img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EAF1F8;}
.ky-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.ky-card-body h3{font-size:20px;font-weight:600;line-height:1.5;}
.ky-card-body p{
  font-size:15px;color:var(--ky-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-card-body .ky-link-arrow{margin-top:auto;}

/* ---------- 步骤流 ---------- */
.ky-flow{position:relative;max-width:960px;margin:0 auto;}
.ky-flow-item{
  position:relative;display:grid;grid-template-columns:88px 1fr;gap:8px;
  padding-bottom:44px;
}
.ky-flow-item:last-child{padding-bottom:0;}
.ky-flow-item:not(:last-child)::before{
  content:"";position:absolute;left:31px;top:56px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(29,94,168,.35),rgba(29,94,168,.08));
}
.ky-flow-marker{
  width:64px;height:64px;border-radius:50%;
  background:#fff;border:2px solid var(--ky-primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--ky-font-num);font-variant-numeric:tabular-nums;
  font-size:18px;font-weight:700;color:var(--ky-primary);
  box-shadow:0 6px 16px rgba(16,60,110,.08);position:relative;z-index:1;
}
.ky-flow-body{
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  padding:26px 28px;box-shadow:var(--ky-shadow-1);
}
.ky-flow-body h3{font-size:22px;font-weight:600;line-height:1.45;}
.ky-flow-body p{margin-top:10px;font-size:16px;color:var(--ky-text-2);line-height:1.8;max-width:44em;}
.ky-flow-note{
  margin-top:16px;padding:12px 16px;border-left:4px solid var(--ky-accent);
  background:var(--ky-primary-50);border-radius:0 10px 10px 0;
  font-size:14px;color:var(--ky-text-2);
}
.ky-flow-figure{margin-top:18px;}
.ky-flow-figure img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--ky-radius);background:#EAF1F8;
}
.ky-flow-figure figcaption{margin-top:8px;font-size:13px;color:var(--ky-text-3);}
.ky-flow-end{margin-top:20px;}

/* ---------- 对照区 ---------- */
.ky-compare{display:grid;gap:20px;max-width:1080px;margin:0 auto;}
.ky-compare-row{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch;
}
.ky-compare-cell{
  border-radius:var(--ky-radius);padding:22px 24px;border:1px solid var(--ky-line);
  position:relative;
}
.ky-cell-bad{background:#F7F9FC;}
.ky-cell-good{background:var(--ky-primary-50);border-color:rgba(29,94,168,.18);}
.ky-compare-tag{
  display:inline-block;font-size:13px;font-weight:600;padding:3px 10px;border-radius:var(--ky-radius-sm);
  margin-bottom:10px;
}
.ky-cell-bad .ky-compare-tag{background:#E7EDF4;color:var(--ky-text-2);}
.ky-cell-good .ky-compare-tag{background:rgba(47,184,168,.16);color:#1E8E82;}
.ky-compare-cell p{font-size:15px;color:var(--ky-text-2);line-height:1.8;}
.ky-cell-good p{color:var(--ky-primary-800);}

/* ---------- FAQ ---------- */
.ky-faq{max-width:860px;margin:0 auto;}
.ky-faq .accordion-item{
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  margin-bottom:16px;overflow:hidden;box-shadow:var(--ky-shadow-1);
}
.ky-faq .accordion-button{
  background:#fff;color:var(--ky-text);font-size:17px;font-weight:600;
  padding:20px 24px;box-shadow:none;border:0;line-height:1.6;
}
.ky-faq .accordion-button:not(.collapsed){
  background:#fff;color:var(--ky-primary);box-shadow:inset 4px 0 0 var(--ky-primary);
}
.ky-faq .accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--ky-primary);
  width:24px;height:24px;line-height:1;display:flex;align-items:center;justify-content:center;
  transform:none;transition:color .2s ease;
}
.ky-faq .accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.ky-faq .accordion-button:focus{box-shadow:inset 4px 0 0 var(--ky-primary);}
.ky-faq .accordion-body{
  padding:0 24px 22px;font-size:15px;color:var(--ky-text-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.ky-cta{
  background:var(--ky-band);padding:72px 0;text-align:center;position:relative;overflow:hidden;
}
.ky-cta::after{
  content:"";position:absolute;left:-60px;bottom:-70px;width:280px;height:280px;
  background:repeating-linear-gradient(60deg,rgba(29,94,168,.07) 0 2px,transparent 2px 20px);
  border-radius:50%;pointer-events:none;
}
.ky-cta-inner{position:relative;max-width:760px;margin:0 auto;}
.ky-cta h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--ky-primary-800);}
.ky-cta p{margin-top:14px;font-size:16px;color:var(--ky-text-2);}
.ky-cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}

/* ---------- 页脚 ---------- */
.ky-footer{background:var(--ky-footer-bg);color:#A9BED4;padding:64px 0 0;margin-top:0;}
.ky-footer .ky-logo-text{color:#fff;}
.ky-footer .ky-logo-mark{background:rgba(255,255,255,.12);box-shadow:none;border:1px solid rgba(255,255,255,.16);}
.ky-footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;gap:40px;}
.ky-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.ky-footer p{font-size:14px;color:#A9BED4;line-height:1.8;}
.ky-footer-brand p{margin:16px 0 18px;max-width:32em;}
.ky-footer-contact{display:flex;flex-direction:column;gap:6px;font-size:14px;color:#8FA9C4;}
.ky-footer-links a{display:block;font-size:14px;color:#C7D6E5;padding:5px 0;}
.ky-footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.ky-sub{display:flex;gap:8px;}
.ky-sub input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;outline:none;
}
.ky-sub input::placeholder{color:#8FA9C4;}
.ky-sub input:focus{border-color:var(--ky-accent);background:rgba(255,255,255,.12);}
.ky-sub button{
  height:44px;padding:0 18px;border-radius:999px;border:0;cursor:pointer;
  background:var(--ky-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .2s ease;
}
.ky-sub button:hover{background:#2A7BC8;}
.ky-footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA9C4;
}
.ky-footer-bottom a{color:#C7D6E5;}
.ky-footer-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-hero-grid{gap:36px;}
  .ky-header-inner{gap:20px;}
  .ky-menu{gap:20px;}
  .ky-search{width:180px;}
}
@media (max-width:991.98px){
  .ky-menu,.ky-header-actions{display:none;}
  .ky-burger{display:flex;}
  .ky-header-inner{justify-content:space-between;height:60px;}
  .ky-hero{padding:40px 0 52px;}
  .ky-hero-grid{grid-template-columns:1fr;gap:32px;}
  .ky-hero-media img{aspect-ratio:16/9;}
  .ky-hero-chip{left:auto;right:14px;bottom:-16px;}
  .ky-section{padding:56px 0;}
  .ky-section-sm{padding:56px 0;}
  .ky-card-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .ky-footer{padding-top:52px;}
}
@media (max-width:767.98px){
  .ky-container{padding:0 18px;}
  .ky-hero-sub{font-size:16px;}
  .ky-hero-actions .ky-btn{flex:1 1 auto;}
  .ky-hero-trust{gap:18px;}
  .ky-hero-trust strong{font-size:19px;}
  .ky-flow-item{grid-template-columns:56px 1fr;padding-bottom:32px;}
  .ky-flow-marker{width:48px;height:48px;font-size:16px;}
  .ky-flow-item:not(:last-child)::before{left:23px;top:44px;}
  .ky-flow-body{padding:20px 18px;}
  .ky-flow-body h3{font-size:19px;}
  .ky-compare-row{grid-template-columns:1fr;gap:12px;}
  .ky-faq .accordion-button{font-size:16px;padding:16px 18px;}
  .ky-faq .accordion-body{padding:0 18px 18px;}
  .ky-cta{padding:56px 0;}
  .ky-cta-actions .ky-btn{width:100%;}
}
@media (max-width:519.98px){
  .ky-card-grid{grid-template-columns:1fr;gap:16px;}
  .ky-footer-grid{grid-template-columns:1fr;gap:28px;}
  .ky-flow-item{grid-template-columns:1fr;gap:12px;}
  .ky-flow-item:not(:last-child)::before{display:none;}
  .ky-flow-marker{width:44px;height:44px;font-size:15px;}
  .ky-hero h1{font-size:26px;}
  .ky-logo-text{font-size:17px;}
}