/* roulang page: index */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-light:#EAF2F8;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-soft:#EAF2F8;
  --ky-footer:#14212E;
  --ky-text:#14212E;
  --ky-text-2:#55677A;
  --ky-text-3:#8A99A8;
  --ky-border:#E2E9F1;
  --ky-white:#FFFFFF;
  --ky-inverse-2:#C9D6E2;
  --ky-r-card:14px;
  --ky-r-btn:10px;
  --ky-r-img:12px;
  --ky-r-cta:16px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04), 0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06), 0 16px 32px rgba(20,40,70,.10);
  --ky-sidebar-w:264px;
  --ky-font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe 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);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease, background-color .2s ease, transform .2s ease;}
a:hover{color:var(--ky-primary-hover);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:700;}
h3{font-size:18px;line-height:1.5;font-weight:600;}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;}

/* ============ 布局骨架 ============ */
.ky-layout{display:flex;min-height:100vh;align-items:stretch;}
.ky-sidebar{
  width:var(--ky-sidebar-w);flex:0 0 var(--ky-sidebar-w);
  background:var(--ky-card);border-right:1px solid var(--ky-border);
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  padding:26px 16px 20px;overflow-y:auto;scrollbar-width:thin;
}
.ky-sidebar::-webkit-scrollbar{width:6px;}
.ky-sidebar::-webkit-scrollbar-thumb{background:#D7E1EA;border-radius:999px;}
.ky-sidebar::-webkit-scrollbar-track{background:transparent;}
.ky-content{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.ky-container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.ky-section{padding:80px 0;}

/* ============ 品牌区 ============ */
.ky-brand{display:flex;gap:12px;align-items:flex-start;padding:6px 10px 22px;border-bottom:1px solid var(--ky-border);margin-bottom:16px;}
.ky-brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--ky-primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;box-shadow:0 6px 14px rgba(29,111,165,.25);
}
.ky-brand-text{display:block;font-size:17px;line-height:1.35;font-weight:700;color:var(--ky-text);}
.ky-brand-sub{display:block;font-size:12px;color:var(--ky-text-3);margin-top:4px;letter-spacing:.02em;}

/* ============ 侧栏导航 ============ */
.ky-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;}
.ky-nav-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:var(--ky-r-btn);font-size:15px;color:var(--ky-text-2);
  position:relative;font-weight:500;
}
.ky-nav-item i{width:18px;text-align:center;font-size:14px;color:var(--ky-text-3);transition:color .2s ease;}
.ky-nav-item:hover{background:#F1F6FA;color:var(--ky-primary);}
.ky-nav-item:hover i{color:var(--ky-primary);}
.ky-nav-item.active{background:var(--ky-primary-light);color:var(--ky-primary);font-weight:600;}
.ky-nav-item.active i{color:var(--ky-primary);}
.ky-nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--ky-primary);
}
.ky-side-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--ky-border);}
.ky-side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--ky-r-btn);background:var(--ky-accent);color:#fff;
  font-size:15px;font-weight:600;margin-bottom:14px;transition:background-color .2s ease;
}
.ky-side-cta:hover{background:var(--ky-accent-hover);color:#fff;}
.ky-side-contact{font-size:13px;line-height:1.9;color:var(--ky-text-2);}
.ky-side-contact span{display:block;}
.ky-side-contact b{color:var(--ky-text);font-weight:600;}

/* ============ 移动端顶部条 ============ */
.ky-mobile-bar{
  display:none;position:sticky;top:0;z-index:1030;height:60px;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:rgba(255,255,255,.96);border-bottom:1px solid var(--ky-border);
  backdrop-filter:saturate(180%) blur(6px);
}
.ky-mobile-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--ky-text);}
.ky-mobile-brand .ky-brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px;}
.ky-burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--ky-border);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ky-primary);font-size:18px;
}
.ky-burger:hover{background:var(--ky-primary-light);}
.offcanvas.ky-drawer{width:300px;background:#fff;}
.ky-drawer .offcanvas-header{border-bottom:1px solid var(--ky-border);padding:18px 18px;}
.ky-drawer .offcanvas-body{padding:16px;}
.ky-drawer .ky-nav-item{height:48px;border-bottom:1px solid var(--ky-border);border-radius:0;}
.ky-drawer .ky-nav-item.active::before{top:8px;bottom:8px;}
.ky-drawer .ky-nav-item.active{border-radius:0;}

/* ============ 按钮 ============ */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--ky-r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.ky-btn-accent{background:var(--ky-accent);color:#fff;box-shadow:0 6px 16px rgba(224,138,60,.28);}
.ky-btn-accent:hover{background:var(--ky-accent-hover);color:#fff;transform:translateY(-2px);}
.ky-btn-accent:active{background:var(--ky-accent-hover);transform:translateY(0);}
.ky-btn-primary{background:var(--ky-primary);color:#fff;}
.ky-btn-primary:hover{background:var(--ky-primary-hover);color:#fff;transform:translateY(-2px);}
.ky-btn-outline{background:#fff;color:var(--ky-primary);border-color:var(--ky-primary);}
.ky-btn-outline:hover{background:var(--ky-primary-light);color:var(--ky-primary-hover);}
.ky-btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.ky-btn-ghost:hover{background:#fff;color:var(--ky-primary);border-color:#fff;}
.ky-btn:disabled,.ky-btn.disabled{opacity:.5;pointer-events:none;}
.ky-link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ky-primary);}
.ky-link-more i{transition:transform .2s ease;}
.ky-link-more:hover i{transform:translateX(4px);}

/* ============ Hero ============ */
.ky-hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;overflow:hidden;
}
.ky-hero::before{content:"";position:absolute;inset:0;background:rgba(29,111,165,.30);}
.ky-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:60%;background:rgba(29,111,165,.55);}
.ky-hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;width:100%;}
.ky-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:center;}
.ky-hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.4);
  color:#fff;font-size:13px;margin-bottom:18px;
}
.ky-hero h1{color:#fff;margin-bottom:16px;}
.ky-hero-sub{font-size:18px;color:#fff;font-weight:600;margin-bottom:12px;}
.ky-hero-desc{font-size:16px;line-height:1.8;color:rgba(255,255,255,.88);max-width:620px;margin-bottom:26px;}
.ky-hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.ky-hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.ky-hero-badges span{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.32);
  font-size:13px;color:#fff;
}
.ky-hero-card{
  background:#fff;border-radius:var(--ky-r-card);padding:20px;box-shadow:0 18px 40px rgba(10,35,60,.22);
}
.ky-hero-card img{width:100%;height:132px;object-fit:cover;border-radius:var(--ky-r-img);border:1px solid var(--ky-border);}
.ky-hero-card h2{font-size:17px;margin:16px 0 12px;color:var(--ky-text);}
.ky-hero-card ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.7;color:var(--ky-text-2);padding:7px 0;
}
.ky-hero-card ul li i{color:var(--ky-accent);font-size:13px;margin-top:6px;}

/* ============ 板块通用 ============ */
.ky-section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:40px;}
.ky-section-head .ky-eyebrow{
  display:block;font-size:13px;font-weight:600;color:var(--ky-accent);letter-spacing:.04em;margin-bottom:8px;
}
.ky-section-head p{font-size:15px;color:var(--ky-text-2);max-width:620px;margin-top:10px;}
.ky-soft{background:var(--ky-soft);}

/* ============ 三步流程条 ============ */
.ky-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.ky-flow-step{position:relative;padding:0 30px 0 0;}
.ky-flow-step:last-child{padding-right:0;}
.ky-flow-step::after{
  content:"";position:absolute;top:16px;left:52px;right:16px;border-top:1px dashed #C7D8E5;
}
.ky-flow-step:last-child::after{display:none;}
.ky-flow-num{
  width:32px;height:32px;border-radius:50%;border:1.5px solid var(--ky-accent);color:var(--ky-accent);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;background:#fff;
  position:relative;z-index:1;margin-bottom:18px;
}
.ky-flow-step h3{margin-bottom:10px;}
.ky-flow-step p{font-size:15px;color:var(--ky-text-2);line-height:1.8;}

/* ============ 功能与场景 ============ */
.ky-scene-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}
.ky-scene-list li{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--ky-border);
}
.ky-scene-list li:first-child{padding-top:0;}
.ky-scene-list li:last-child{border-bottom:none;}
.ky-scene-index{
  flex:0 0 28px;font-size:15px;font-weight:700;color:var(--ky-accent);line-height:1.6;
}
.ky-scene-body h3{margin-bottom:8px;}
.ky-scene-body p{font-size:15px;color:var(--ky-text-2);line-height:1.8;}
.ky-scene-aside{
  position:sticky;top:32px;background:#fff;border:1px solid var(--ky-border);
  border-radius:var(--ky-r-card);padding:20px;box-shadow:var(--ky-shadow);
}
.ky-scene-aside img{width:100%;height:150px;object-fit:cover;border-radius:var(--ky-r-img);border:1px solid var(--ky-border);}
.ky-scene-aside h3{font-size:17px;margin:16px 0 8px;}
.ky-scene-aside p{font-size:14px;color:var(--ky-text-2);line-height:1.8;margin-bottom:14px;}

/* ============ 案例证明 ============ */
.ky-case-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:32px;align-items:stretch;}
.ky-case-feature{
  background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-r-card);
  overflow:hidden;box-shadow:var(--ky-shadow);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.ky-case-feature:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);}
.ky-case-feature img{width:100%;height:280px;object-fit:cover;}
.ky-case-feature .ky-case-body{padding:24px;}
.ky-case-body h3{margin:14px 0 10px;}
.ky-case-body p{font-size:15px;color:var(--ky-text-2);line-height:1.8;}
.ky-case-side{display:flex;flex-direction:column;gap:20px;}
.ky-case-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-r-card);
  padding:18px;box-shadow:var(--ky-shadow);flex:1 1 auto;align-items:flex-start;
  transition:transform .25s ease,box-shadow .25s ease;
}
.ky-case-item:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);}
.ky-case-item img{width:88px;height:64px;flex:0 0 88px;object-fit:cover;border-radius:10px;border:1px solid var(--ky-border);}
.ky-case-item h3{font-size:16px;margin:10px 0 6px;}
.ky-case-item p{font-size:14px;color:var(--ky-text-2);line-height:1.7;}
.ky-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ky-text-3);}
.ky-meta .ky-dot{width:3px;height:3px;border-radius:50%;background:#C7D3DE;}
.ky-badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--ky-primary-light);color:var(--ky-primary);font-size:13px;font-weight:600;
}
.ky-time{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--ky-text-3);}

/* ============ 最新信息（CMS） ============ */
.ky-post-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--ky-border);
  border-radius:var(--ky-r-card);padding:24px;box-shadow:var(--ky-shadow);color:var(--ky-text);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.ky-post-card:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);color:var(--ky-text);border-color:#D3E2EE;}
.ky-post-card:hover .ky-post-title{color:var(--ky-primary);}
.ky-post-title{
  font-size:17px;line-height:1.55;font-weight:600;margin:14px 0 10px;color:var(--ky-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.ky-post-desc{
  font-size:14px;color:var(--ky-text-2);line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.ky-empty{
  background:var(--ky-primary-light);border-radius:var(--ky-r-card);
  padding:44px 24px;text-align:center;
}
.ky-empty i{font-size:24px;color:var(--ky-primary);}
.ky-empty p{font-size:15px;color:var(--ky-text-2);margin:14px 0 10px;}

/* ============ FAQ ============ */
.ky-faq-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:56px;align-items:start;}
.ky-faq-side p{font-size:15px;color:var(--ky-text-2);line-height:1.85;margin-top:14px;}
.ky-faq-item{border-bottom:1px solid var(--ky-border);}
.ky-faq-item:first-child{border-top:1px solid var(--ky-border);}
.ky-faq-head{
  width:100%;background:transparent;border:none;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:52px;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ky-text);
  transition:color .2s ease;
}
.ky-faq-head:hover{color:var(--ky-primary);}
.ky-faq-head[aria-expanded="true"]{color:var(--ky-primary);}
.ky-faq-icon{width:16px;height:16px;flex:0 0 16px;position:relative;}
.ky-faq-icon::before,.ky-faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.ky-faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.ky-faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.ky-faq-head[aria-expanded="true"] .ky-faq-icon::after{transform:rotate(90deg);opacity:0;}
.ky-faq-body{padding:4px 4px 20px;font-size:15px;line-height:1.8;color:var(--ky-text-2);}

/* ============ CTA 条 ============ */
.ky-cta-bar{
  background:var(--ky-footer);border-radius:var(--ky-r-cta);padding:36px 40px;
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.ky-cta-bar h2{color:#fff;font-size:24px;margin-bottom:8px;}
.ky-cta-bar p{color:var(--ky-inverse-2);font-size:15px;}
.ky-cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 表单 ============ */
.ky-form-wrap{
  background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-r-card);
  padding:32px;box-shadow:var(--ky-shadow);
}
.ky-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.ky-field{display:flex;flex-direction:column;gap:8px;}
.ky-field.full{grid-column:1 / -1;}
.ky-field label{font-size:14px;font-weight:600;color:var(--ky-text);}
.ky-field input,.ky-field textarea{
  width:100%;border:1px solid var(--ky-border);border-radius:var(--ky-r-btn);
  padding:11px 14px;font-size:15px;color:var(--ky-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
}
.ky-field input{height:44px;}
.ky-field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.ky-field input:focus,.ky-field textarea:focus{
  outline:none;border-color:var(--ky-primary);box-shadow:0 0 0 3px rgba(29,111,165,.15);
}
.ky-form-tip{font-size:13px;color:var(--ky-text-3);margin-top:14px;}
.ky-form-msg{font-size:13px;color:var(--ky-accent);margin-top:12px;display:none;}
.ky-form-msg.show{display:block;}

/* ============ 页脚 ============ */
.ky-footer{background:var(--ky-footer);color:var(--ky-inverse-2);margin-top:80px;}
.ky-footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.ky-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;}
.ky-footer p{font-size:14px;line-height:1.9;color:var(--ky-inverse-2);}
.ky-footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:16px;}
.ky-footer-brand .ky-brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.ky-footer-brand span{font-size:17px;font-weight:700;color:#fff;}
.ky-footer-links li{margin-bottom:11px;}
.ky-footer-links a{font-size:14px;color:var(--ky-inverse-2);}
.ky-footer-links a:hover{color:#fff;}
.ky-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 34px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA3B5;
}
.ky-footer-bottom p{font-size:13px;color:#8FA3B5;max-width:760px;line-height:1.8;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--ky-sidebar-w:220px;}
  .ky-hero-grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .ky-scene-grid{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
  .ky-faq-grid{grid-template-columns:280px minmax(0,1fr);gap:36px;}
}
@media (max-width:991.98px){
  .ky-sidebar{display:none;}
  .ky-mobile-bar{display:flex;}
  .ky-container{padding:0 20px;}
  .ky-section{padding:64px 0;}
  .ky-hero{min-height:380px;}
  .ky-hero-inner{padding-top:48px;padding-bottom:48px;}
  .ky-hero-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .ky-hero-card{max-width:520px;}
  .ky-scene-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .ky-scene-aside{position:static;}
  .ky-case-grid{grid-template-columns:minmax(0,1fr);}
  .ky-case-feature img{height:230px;}
  .ky-faq-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .ky-footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:48px 0 32px;}
  .ky-footer{margin-top:56px;}
}
@media (max-width:767.98px){
  .ky-section{padding:48px 0;}
  .ky-flow{grid-template-columns:minmax(0,1fr);gap:0;}
  .ky-flow-step{padding:0 0 26px 0;}
  .ky-flow-step::after{display:none;}
  .ky-flow-step{border-left:1px dashed #C7D8E5;padding-left:24px;margin-left:15px;}
  .ky-flow-step:last-child{border-left:1px dashed transparent;}
  .ky-flow-num{margin-left:-40px;margin-bottom:12px;}
  .ky-cta-bar{padding:28px 24px;border-radius:var(--ky-r-card);}
  .ky-form-wrap{padding:24px 20px;}
  .ky-form-grid{grid-template-columns:minmax(0,1fr);}
  .ky-section-head{margin-bottom:28px;}
  .ky-hero-card{padding:18px;}
}
@media (max-width:575.98px){
  .ky-container{padding:0 16px;}
  .ky-section{padding:40px 0;}
  .ky-hero-sub{font-size:16px;}
  .ky-hero-btns .ky-btn{width:100%;}
  .ky-cta-actions .ky-btn{width:100%;}
  .ky-footer-top{grid-template-columns:minmax(0,1fr);}
  .ky-case-item img{width:72px;height:58px;flex:0 0 72px;}
  .ky-post-card{padding:20px;}
}

/* roulang page: article */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-soft:#EAF2F8;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-footer:#14212E;
  --ky-text:#14212E;
  --ky-text-2:#55677A;
  --ky-text-3:#8A99A8;
  --ky-border:#E2E9F1;
  --ky-radius:14px;
  --ky-radius-sm:10px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04),0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06),0 16px 32px rgba(20,40,70,.10);
  --ky-sidebar:264px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.ky-body{
  margin:0;
  background:var(--ky-bg);
  color:var(--ky-text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ky-accent)}
img{max-width:100%;display:block;border:1px solid rgba(20,40,70,.06)}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--ky-text);font-weight:700}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}

/* 布局骨架 */
.ky-main{margin-left:var(--ky-sidebar);min-height:100vh;display:flex;flex-direction:column}
.ky-page{flex:1 1 auto}
.ky-container{max-width:1200px;margin:0 auto;padding:0 32px}

/* 左侧竖向导航 */
.ky-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--ky-sidebar);
  background:#fff;border-right:1px solid var(--ky-border);
  display:flex;flex-direction:column;padding:24px 18px 22px;z-index:1030;
  overflow-y:auto;
}
.ky-sidebar::-webkit-scrollbar{width:6px}
.ky-sidebar::-webkit-scrollbar-thumb{background:#D6E0EA;border-radius:999px}
.ky-sidebar::-webkit-scrollbar-track{background:transparent}
.ky-brand{display:flex;align-items:center;gap:10px;padding:0 8px}
.ky-brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--ky-primary);color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:16px;letter-spacing:.5px;
}
.ky-brand-text{font-size:17px;font-weight:700;line-height:1.3;color:var(--ky-text)}
.ky-nav{display:flex;flex-direction:column;gap:4px;margin-top:26px}
.ky-nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--ky-radius-sm);
  font-size:15px;font-weight:500;color:var(--ky-text-2);
  transition:background .2s ease,color .2s ease;
}
.ky-nav-item i{width:16px;font-size:14px;color:var(--ky-text-3);transition:color .2s ease}
.ky-nav-item:hover{background:var(--ky-primary-soft);color:var(--ky-primary)}
.ky-nav-item:hover i{color:var(--ky-primary)}
.ky-nav-item.active{background:var(--ky-primary-soft);color:var(--ky-primary);font-weight:600}
.ky-nav-item.active i{color:var(--ky-primary)}
.ky-nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:3px;background:var(--ky-primary);
}
.ky-side-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--ky-border)}
.ky-side-contact{margin-top:16px;font-size:13px;line-height:1.8;color:var(--ky-text-3)}
.ky-side-contact span{display:block}

/* 移动顶部栏 */
.ky-mobile-bar{display:none}
.ky-burger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--ky-border);
  background:#fff;color:var(--ky-primary);font-size:17px;display:grid;place-items:center;
  transition:background .2s ease,border-color .2s ease;
}
.ky-burger:hover{background:var(--ky-primary-soft);border-color:#CFE0EE}
.ky-drawer{width:302px;background:#fff}
.ky-drawer .offcanvas-header{padding:16px 18px;border-bottom:1px solid var(--ky-border)}
.ky-drawer .offcanvas-body{padding:14px 18px 28px}
.ky-drawer .ky-nav{margin-top:0}
.ky-nav-mobile .ky-nav-item{height:48px;border-bottom:1px solid var(--ky-border);border-radius:8px}
.ky-nav-mobile .ky-nav-item.active::before{top:13px;bottom:13px}
.ky-drawer-cta{margin-top:22px}

/* 按钮 */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--ky-radius-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.ky-btn-primary{background:var(--ky-accent);color:#fff;border-color:var(--ky-accent)}
.ky-btn-primary:hover{background:var(--ky-accent-hover);border-color:var(--ky-accent-hover);color:#fff;transform:translateY(-1px)}
.ky-btn-primary:active{background:#B5671F;transform:translateY(0)}
.ky-btn-ghost{background:#fff;color:var(--ky-primary);border-color:var(--ky-primary)}
.ky-btn-ghost:hover{background:var(--ky-primary-soft);color:var(--ky-primary-hover)}
.ky-btn-block{width:100%}
.ky-btn-sm{height:44px;padding:0 20px;font-size:14px}
.ky-btn[disabled]{opacity:.5;pointer-events:none}
.ky-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ky-primary)}
.ky-link-arrow i{font-size:13px;transition:transform .2s ease}
.ky-link-arrow:hover{color:var(--ky-accent)}
.ky-link-arrow:hover i{transform:translateX(4px)}

/* 面包屑 */
.ky-crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ky-text-3);padding:26px 0 0;
}
.ky-crumb a{color:var(--ky-text-2)}
.ky-crumb a:hover{color:var(--ky-primary)}
.ky-crumb .sep{color:#C3CFDC}
.ky-crumb .cur{
  color:var(--ky-text-3);max-width:420px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* 文章布局 */
.ky-article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  padding:22px 0 80px;
}
.ky-article{
  background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-radius);
  box-shadow:var(--ky-shadow);padding:38px 40px 40px;min-width:0;
}
.ky-article-title{
  font-size:clamp(26px,3.4vw,34px);line-height:1.35;font-weight:700;
  margin:0 0 18px;word-break:break-word;
}
.ky-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--ky-text-3)}
.ky-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CFDC;flex:0 0 4px}
.ky-meta i{font-size:12px}
.ky-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;background:var(--ky-primary-soft);
  color:var(--ky-primary);font-size:13px;font-weight:600;
}
.ky-divider{height:1px;background:var(--ky-border);margin:22px 0 0}
.ky-figure{margin:28px 0 0}
.ky-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px}
.ky-figure figcaption{font-size:13px;color:var(--ky-text-3);text-align:center;margin-top:10px}

/* 正文阅读区 */
.ky-article-body{max-width:780px;margin-top:28px;font-size:17px;line-height:1.85;color:#23303D}
.ky-article-body p{margin:0 0 1.15em}
.ky-article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--ky-primary);
}
.ky-article-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:28px 0 12px}
.ky-article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.ky-article-body ul,.ky-article-body ol{margin:0 0 1.15em;padding-left:1.5em;list-style:disc}
.ky-article-body ol{list-style:decimal}
.ky-article-body li{margin-bottom:.5em}
.ky-article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--ky-primary-soft);
  border-left:3px solid var(--ky-primary);border-radius:0 12px 12px 0;
  color:var(--ky-text-2);font-size:16px;
}
.ky-article-body img{border-radius:10px;margin:20px auto;height:auto}
.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{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;
}
.ky-article-body th,.ky-article-body td{
  border:1px solid var(--ky-border);padding:10px 14px;font-size:15px;text-align:left;white-space:nowrap;
}
.ky-article-body th{background:var(--ky-primary-soft);color:var(--ky-primary);font-weight:600}
.ky-article-body pre{
  background:#F1F5F9;border-radius:10px;padding:16px 18px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:22px 0;
}
.ky-article-body code{background:#F1F5F9;border-radius:6px;padding:2px 6px;font-size:.92em}
.ky-article-body pre code{background:transparent;padding:0}
.ky-article-body a{color:var(--ky-primary);border-bottom:1px solid rgba(29,111,165,.35)}
.ky-article-body a:hover{color:var(--ky-accent);border-bottom-color:rgba(224,138,60,.5)}
.ky-article-body hr{border:0;height:1px;background:var(--ky-border);margin:32px 0}

/* 空态 */
.ky-empty{
  margin-top:28px;padding:36px 28px;background:var(--ky-primary-soft);
  border-radius:var(--ky-radius);text-align:center;
}
.ky-empty i{font-size:24px;color:var(--ky-primary)}
.ky-empty p{font-size:15px;color:var(--ky-text-2);margin:12px 0 18px}

/* 文末标签与相关推荐 */
.ky-foot-block{margin-top:38px;padding-top:26px;border-top:1px solid var(--ky-border)}
.ky-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.ky-tags .label{font-size:13px;color:var(--ky-text-3)}
.ky-tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--ky-border);background:#fff;font-size:13px;color:var(--ky-text-2);
  transition:border-color .2s ease,color .2s ease;
}
.ky-tag:hover{border-color:var(--ky-primary);color:var(--ky-primary)}
.ky-rel{margin-top:40px}
.ky-rel-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
.ky-rel-head h2{font-size:22px;line-height:1.35}
.ky-rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.ky-card{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--ky-border);border-radius:var(--ky-radius);
  box-shadow:var(--ky-shadow);overflow:hidden;color:inherit;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.ky-card:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);border-color:#D3E1ED;color:inherit}
.ky-card-img{width:100%;aspect-ratio:16/9;object-fit:cover;border:0;border-bottom:1px solid var(--ky-border)}
.ky-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.ky-card-body h3{font-size:17px;line-height:1.5;font-weight:600;transition:color .2s ease}
.ky-card:hover .ky-card-body h3{color:var(--ky-primary)}
.ky-card-body p{
  font-size:14px;color:var(--ky-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.ky-card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ky-text-3);margin-top:auto}
.ky-back-row{display:flex;justify-content:flex-end;margin-top:30px}

/* 侧栏 */
.ky-aside{display:none}
.ky-aside-card{
  background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-radius);
  box-shadow:var(--ky-shadow);padding:22px;
}
.ky-aside-card + .ky-aside-card{margin-top:20px}
.ky-aside-card h3{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.ky-aside-card h3 i{color:var(--ky-accent);font-size:14px}
.ky-aside-list a{
  display:block;padding:12px 0;border-bottom:1px dashed var(--ky-border);
  font-size:14px;color:var(--ky-text-2);line-height:1.6;
  transition:color .2s ease,padding-left .2s ease;
}
.ky-aside-list a:last-child{border-bottom:0;padding-bottom:0}
.ky-aside-list a:hover{color:var(--ky-primary);padding-left:4px}
.ky-aside-note{font-size:13px;color:var(--ky-text-3);line-height:1.75;margin-bottom:14px}

/* 页脚 */
.ky-footer{background:var(--ky-footer);color:#C9D6E2;padding:56px 0 26px;margin-top:auto}
.ky-footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.ky-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.ky-footer-brand .ky-brand-mark{background:var(--ky-accent)}
.ky-footer-brand span:last-child{font-size:17px;font-weight:700;color:#fff}
.ky-footer p{font-size:14px;line-height:1.8;color:#C9D6E2}
.ky-footer h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.ky-footer-links li{margin-bottom:10px}
.ky-footer-links a{font-size:14px;color:#C9D6E2}
.ky-footer-links a:hover{color:#fff}
.ky-footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.ky-footer-bottom p{font-size:13px;color:#8FA2B4}

/* 响应式 */
@media (max-width:1199.98px){
  :root{--ky-sidebar:220px}
  .ky-container{padding:0 26px}
  .ky-article{padding:32px 30px 34px}
  .ky-rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1200px){
  .ky-article-layout{grid-template-columns:minmax(0,1fr) 300px}
  .ky-aside{display:block;position:sticky;top:24px;align-self:start}
}
@media (max-width:991.98px){
  .ky-sidebar{display:none}
  .ky-mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:60px;padding:0 16px;
    background:#fff;border-bottom:1px solid var(--ky-border);z-index:1040;
  }
  .ky-mobile-bar .ky-brand{padding:0}
  .ky-mobile-bar .ky-brand-text{font-size:16px;max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .ky-main{margin-left:0;padding-top:60px}
  .ky-container{padding:0 22px}
  .ky-article-layout{padding:18px 0 64px;gap:32px}
  .ky-article{padding:28px 24px 30px}
  .ky-crumb{padding-top:20px}
  .ky-crumb .cur{max-width:230px}
  .ky-article-body{font-size:16.5px}
  .ky-footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .ky-article-body h2{font-size:21px;margin-top:32px}
  .ky-article-body h3{font-size:17px}
  .ky-rel-grid{grid-template-columns:1fr}
  .ky-article-title{font-size:clamp(23px,6vw,28px)}
  .ky-footer{padding:44px 0 22px}
}
@media (max-width:575.98px){
  .ky-container{padding:0 18px}
  .ky-article{padding:22px 18px 26px;border-radius:12px}
  .ky-crumb .cur{max-width:150px}
  .ky-btn{width:100%}
  .ky-back-row .ky-btn{width:auto}
  .ky-footer-top{grid-template-columns:1fr;gap:24px}
  .ky-footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-light:#EAF2F8;
  --ky-primary-soft:#D7E5F1;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-section:#EAF2F8;
  --ky-footer:#14212E;
  --ky-text:#14212E;
  --ky-text-2:#55677A;
  --ky-text-3:#8A99A8;
  --ky-inverse:#FFFFFF;
  --ky-inverse-2:#C9D6E2;
  --ky-border:#E2E9F1;
  --ky-r-card:14px;
  --ky-r-btn:10px;
  --ky-r-pill:999px;
  --ky-r-img:13px;
  --ky-r-cta:16px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04),0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06),0 16px 32px rgba(20,40,70,.10);
  --ky-sidebar-w:264px;
  --bs-link-color:#1D6FA5;
  --bs-link-hover-color:#175C8A;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ky-bg);
  color:var(--ky-text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--ky-primary-hover);}
img{max-width:100%;display:block;}
h1,h2,h3,h4{margin:0;color:var(--ky-text);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;}
.ky-lock{overflow:hidden;}

/* 布局骨架 */
.ky-layout{display:flex;min-height:100vh;align-items:flex-start;}
.ky-sidebar{
  width:var(--ky-sidebar-w);
  flex:0 0 var(--ky-sidebar-w);
  background:#fff;
  border-right:1px solid var(--ky-border);
  height:100vh;
  position:sticky;
  top:0;
  display:flex;
  flex-direction:column;
  z-index:1030;
}
.ky-sidebar-inner{
  flex:1;
  overflow-y:auto;
  padding:26px 20px 20px;
  scrollbar-width:thin;
  scrollbar-color:#CFDCE8 transparent;
}
.ky-sidebar-inner::-webkit-scrollbar{width:6px;}
.ky-sidebar-inner::-webkit-scrollbar-thumb{background:#CFDCE8;border-radius:6px;}
.ky-sidebar-inner::-webkit-scrollbar-track{background:transparent;}
.ky-content{flex:1;min-width:0;padding-top:32px;}
.ky-container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}

/* 品牌 */
.ky-brand{display:flex;align-items:flex-start;gap:12px;padding:2px 6px 22px;}
.ky-brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:12px;
  background:var(--ky-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;letter-spacing:.5px;
}
.ky-brand-text{font-size:17.5px;font-weight:700;line-height:1.35;color:var(--ky-text);}
.ky-brand-text small{display:block;font-size:12.5px;font-weight:400;color:var(--ky-text-3);margin-top:4px;line-height:1.5;}

/* 导航 */
.ky-nav{display:flex;flex-direction:column;gap:4px;}
.ky-nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;
  border-radius:10px;
  color:var(--ky-text-2);
  font-size:15px;font-weight:500;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.ky-nav-item i{width:18px;font-size:15px;color:var(--ky-text-3);transition:color .2s ease;text-align:center;}
.ky-nav-item:hover{background:#F1F5F9;color:var(--ky-primary);}
.ky-nav-item:hover i{color:var(--ky-primary);}
.ky-nav-item.active{background:var(--ky-primary-light);color:var(--ky-primary);font-weight:600;}
.ky-nav-item.active i{color:var(--ky-primary);}
.ky-nav-item.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--ky-primary);
}
.ky-sidebar-foot{margin-top:auto;padding:18px 20px 22px;border-top:1px solid var(--ky-border);}
.ky-side-meta{font-size:13px;color:var(--ky-text-3);line-height:1.6;margin-top:10px;}

/* 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);
  border:1px solid transparent;
  font-size:15.5px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.ky-btn i{font-size:14px;}
.ky-btn-primary{background:var(--ky-accent);color:#fff;box-shadow:0 6px 16px rgba(224,138,60,.22);}
.ky-btn-primary:hover{background:var(--ky-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(201,118,44,.28);}
.ky-btn-primary:active{background:#B5691F;transform:translateY(0);}
.ky-btn-outline{background:#fff;color:var(--ky-primary);border-color:var(--ky-primary);}
.ky-btn-outline:hover{background:var(--ky-primary-light);color:var(--ky-primary-hover);border-color:var(--ky-primary-hover);transform:translateY(-2px);}
.ky-btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.72);}
.ky-btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff;}
.ky-btn-block{width:100%;}
.ky-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

/* 面包屑 */
.ky-crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ky-text-3);margin-bottom:16px;}
.ky-crumb a{color:var(--ky-text-3);}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb span{color:#B8C4D0;}
.ky-crumb-current{color:var(--ky-text-2);}

/* 页面头部 */
.ky-page-hero{
  position:relative;
  overflow:hidden;
  border-radius:18px;
  min-height:340px;
  padding:44px 44px 42px;
  display:flex;
  align-items:flex-end;
  color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--ky-shadow);
}
.ky-page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(18,74,112,.88) 0%,rgba(29,111,165,.62) 58%,rgba(20,33,46,.36) 100%);
}
.ky-hero-inner{position:relative;z-index:1;max-width:720px;}
.ky-hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--ky-r-pill);
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);
  color:#fff;font-size:13px;font-weight:500;
  margin-bottom:16px;
}
.ky-page-hero h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.ky-hero-sub{font-size:16px;line-height:1.7;color:rgba(255,255,255,.9);margin-bottom:26px;max-width:560px;}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 板块 */
.ky-section{margin-top:80px;}
.ky-section-head{margin-bottom:32px;max-width:760px;}
.ky-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ky-accent);
  letter-spacing:.4px;margin-bottom:12px;
}
.ky-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--ky-accent);}
.ky-section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;margin-bottom:12px;}
.ky-section-head p{font-size:15.5px;color:var(--ky-text-2);}

/* 流程总览 */
.ky-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.ky-flow-step{position:relative;padding:0 44px 0 0;}
.ky-flow-step:not(:last-child)::after{
  content:"";position:absolute;top:18px;left:52px;right:32px;
  border-top:1px dashed #BFD6E6;
}
.ky-flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  border:1.5px solid var(--ky-accent);
  color:var(--ky-accent);
  font-size:13.5px;font-weight:700;
  background:#fff;
  margin-bottom:16px;
  position:relative;z-index:1;
}
.ky-flow-step h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:8px;}
.ky-flow-step p{font-size:15px;color:var(--ky-text-2);line-height:1.75;max-width:300px;}

/* 图文交错 */
.ky-split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:36px 0;
  border-bottom:1px solid var(--ky-border);
}
.ky-split:last-child{border-bottom:0;}
.ky-split-media{
  border-radius:var(--ky-r-img);
  overflow:hidden;
  border:1px solid var(--ky-border);
  box-shadow:var(--ky-shadow);
  background:linear-gradient(135deg,#EAF2F8,#D7E5F1);
}
.ky-split-media img{width:100%;aspect-ratio:5/3;object-fit:cover;transition:transform .3s ease;}
.ky-split-media:hover img{transform:scale(1.02);}
.ky-split.reverse .ky-split-media{order:2;}
.ky-step-tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--ky-r-pill);
  background:var(--ky-primary-light);color:var(--ky-primary);
  font-size:13px;font-weight:600;margin-bottom:14px;
}
.ky-split-body h2{font-size:clamp(21px,2.4vw,26px);line-height:1.4;margin-bottom:16px;}
.ky-split-body p{font-size:15.5px;color:var(--ky-text-2);line-height:1.8;margin-bottom:14px;}
.ky-textlink{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ky-primary);
  margin-top:6px;
}
.ky-textlink i{font-size:13px;transition:transform .2s ease;}
.ky-textlink:hover{color:var(--ky-accent);}
.ky-textlink:hover i{transform:translateX(4px);}

/* 数据卡 */
.ky-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ky-stat{
  background:var(--ky-card);
  border:1px solid var(--ky-border);
  border-radius:var(--ky-r-card);
  padding:28px 24px;
  box-shadow:var(--ky-shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.ky-stat:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);border-color:#D3E2EF;}
.ky-stat-num{font-size:36px;font-weight:700;color:var(--ky-primary);line-height:1;letter-spacing:-.5px;}
.ky-stat-unit{font-size:14px;font-weight:600;color:var(--ky-accent);margin-left:6px;}
.ky-stat h3{font-size:17px;font-weight:600;margin:16px 0 8px;}
.ky-stat p{font-size:14.5px;color:var(--ky-text-2);line-height:1.7;}

/* FAQ */
.ky-faq{max-width:920px;}
.ky-faq-item{border-bottom:1px solid var(--ky-border);}
.ky-faq-item:first-child{border-top:1px solid var(--ky-border);}
.ky-faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:14px 4px;
  background:none;border:0;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ky-text);
  cursor:pointer;
  transition:color .2s ease;
}
.ky-faq-q:hover{color:var(--ky-primary);}
.ky-faq-q[aria-expanded="true"]{color:var(--ky-primary);}
.ky-faq-q .ky-faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--ky-primary-light);color:var(--ky-primary);
  font-size:12px;
  transition:transform .25s ease,background .2s ease;
}
.ky-faq-q[aria-expanded="true"] .ky-faq-icon{transform:rotate(45deg);background:var(--ky-accent);color:#fff;}
.ky-faq-a{padding:2px 40px 18px 4px;font-size:15px;line-height:1.8;color:var(--ky-text-2);}

/* 表单 */
.ky-form-card{
  background:var(--ky-card);
  border:1px solid var(--ky-border);
  border-radius:var(--ky-r-card);
  padding:32px;
  box-shadow:var(--ky-shadow);
  max-width:760px;
}
.ky-form-row{margin-bottom:20px;}
.ky-form-row label{display:block;font-size:14px;font-weight:600;color:var(--ky-text);margin-bottom:8px;}
.ky-form-row .ky-hint{font-size:13px;color:var(--ky-text-3);font-weight:400;margin-left:6px;}
.ky-input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--ky-border);
  border-radius:var(--ky-r-btn);
  background:#fff;color:var(--ky-text);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.ky-input{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.ky-input:focus{outline:none;border-color:var(--ky-primary);box-shadow:0 0 0 3px rgba(29,111,165,.14);}
.ky-input::placeholder{color:#A9B7C4;}
.ky-form-tip{
  display:none;
  margin-top:16px;padding:12px 16px;border-radius:var(--ky-r-btn);
  background:var(--ky-primary-light);color:var(--ky-primary);
  font-size:14px;
}

/* CTA */
.ky-cta{
  background:var(--ky-footer);
  border-radius:var(--ky-r-cta);
  padding:34px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
}
.ky-cta h2{font-size:clamp(20px,2.3vw,25px);line-height:1.35;color:#fff;margin-bottom:8px;}
.ky-cta p{font-size:15px;color:var(--ky-inverse-2);}
.ky-cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* 页脚 */
.ky-footer{background:var(--ky-footer);color:var(--ky-inverse-2);margin-top:80px;padding:56px 0 26px;}
.ky-footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;}
.ky-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.ky-footer-brand .ky-brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px;}
.ky-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.ky-footer p{font-size:14px;line-height:1.75;color:var(--ky-inverse-2);}
.ky-footer-links{list-style:none;display:flex;flex-direction:column;gap:10px;}
.ky-footer-links li{font-size:14px;color:var(--ky-inverse-2);}
.ky-footer-links a{font-size:14px;color:var(--ky-inverse-2);}
.ky-footer-links a:hover{color:#fff;}
.ky-footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3B6;
}
.ky-footer-bottom p{font-size:13px;color:#8FA3B6;margin:0;}

/* 移动端导航 */
.ky-topbar{display:none;}
.ky-drawer{display:none;}
.ky-burger{
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--ky-border);background:#fff;color:var(--ky-primary);
  font-size:17px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.ky-burger:hover{background:var(--ky-primary-light);}

/* 断点 */
@media (max-width:1199.98px){
  .ky-container{padding:0 32px;}
  .ky-split{gap:40px;}
}
@media (max-width:991.98px){
  .ky-layout{flex-direction:column;}
  .ky-sidebar{display:none;}
  .ky-topbar{
    display:flex;align-items:center;justify-content:space-between;
    width:100%;height:60px;padding:0 20px;background:#fff;
    border-bottom:1px solid var(--ky-border);
    position:sticky;top:0;z-index:1040;
  }
  .ky-topbar .ky-brand{padding:0;align-items:center;}
  .ky-topbar .ky-brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:16px;}
  .ky-topbar .ky-brand-text{font-size:16px;line-height:1.25;}
  .ky-topbar .ky-brand-text small{display:none;}
  .ky-drawer{display:block;width:100%;background:#fff;border-bottom:1px solid var(--ky-border);}
  .ky-drawer .ky-nav{padding:6px 16px 10px;gap:0;}
  .ky-drawer .ky-nav-item{height:48px;border-radius:0;border-bottom:1px solid var(--ky-border);padding:0 6px;}
  .ky-drawer .ky-nav-item.active::before{display:none;}
  .ky-drawer .ky-nav-item.active{background:var(--ky-primary-light);}
  .ky-drawer-foot{padding:14px 16px 18px;}
  .ky-content{padding-top:22px;}
  .ky-container{padding:0 20px;}
  .ky-section{margin-top:64px;}
  .ky-page-hero{min-height:300px;padding:34px 26px 32px;}
  .ky-stats{grid-template-columns:1fr 1fr;}
  .ky-footer-top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .ky-split{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .ky-split.reverse .ky-split-media{order:0;}
  .ky-flow{grid-template-columns:1fr;gap:30px;}
  .ky-flow-step{padding:0 0 0 54px;}
  .ky-flow-num{position:absolute;left:0;top:2px;margin:0;}
  .ky-flow-step:not(:last-child)::after{
    left:17px;top:46px;right:auto;bottom:-30px;
    width:0;border-top:0;border-left:1px dashed #BFD6E6;
  }
  .ky-flow-step p{max-width:none;}
  .ky-stats{grid-template-columns:1fr;}
  .ky-cta{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:22px;}
  .ky-cta-actions{width:100%;}
  .ky-cta-actions .ky-btn{flex:1 1 auto;}
  .ky-faq-a{padding-right:12px;}
  .ky-form-card{padding:24px 20px;}
  .ky-section{margin-top:48px;}
  .ky-footer{padding:44px 0 22px;margin-top:56px;}
}
@media (max-width:575.98px){
  .ky-container{padding:0 16px;}
  .ky-page-hero{padding:28px 20px 26px;border-radius:14px;}
  .ky-hero-sub{font-size:15px;}
  .ky-hero-actions .ky-btn{width:100%;}
  .ky-footer-top{grid-template-columns:1fr;gap:28px;}
  .ky-faq-q{font-size:15.5px;}
  .ky-stat-num{font-size:30px;}
}

/* roulang page: category2 */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-soft:#EAF2F8;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-section:#EAF2F8;
  --ky-footer:#14212E;
  --ky-text:#14212E;
  --ky-muted:#55677A;
  --ky-weak:#8A99A8;
  --ky-line:#E2E9F1;
  --ky-radius:14px;
  --ky-radius-btn:10px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04),0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06),0 16px 32px rgba(20,40,70,.10);
  --ky-space:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ky-text);
  background:var(--ky-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0}
p{margin:0}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px}
.ky-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 侧边导航 ---------- */
.ky-sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:264px;height:100vh;
  background:#fff;border-right:1px solid var(--ky-line);
  display:flex;flex-direction:column;
  padding:24px 18px;z-index:1040;overflow-y:auto;
}
.ky-sidebar::-webkit-scrollbar{width:6px}
.ky-sidebar::-webkit-scrollbar-thumb{background:#D7E5F1;border-radius:999px}
.ky-sidebar::-webkit-scrollbar-track{background:transparent}
.ky-brand{display:flex;gap:12px;align-items:flex-start;padding:0 6px 20px;border-bottom:1px solid var(--ky-line);margin-bottom:18px}
.ky-brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--ky-primary);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:17px;letter-spacing:0;
}
.ky-brand-text{font-size:17px;font-weight:700;line-height:1.35;color:var(--ky-text);word-break:break-word}
.ky-nav{display:flex;flex-direction:column;gap:6px}
.ky-nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--ky-muted);font-size:15px;
  transition:background .2s,color .2s;
}
.ky-nav-item i{width:18px;text-align:center;font-size:15px;color:var(--ky-weak);transition:color .2s}
.ky-nav-item:hover{background:#F0F5FA;color:var(--ky-primary)}
.ky-nav-item:hover i{color:var(--ky-primary)}
.ky-nav-item.active{background:var(--ky-primary-soft);color:var(--ky-primary);font-weight:600}
.ky-nav-item.active i{color:var(--ky-primary)}
.ky-nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:999px;background:var(--ky-primary);
}
.ky-side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--ky-line)}
.ky-side-foot .ky-btn{width:100%;margin-bottom:14px}
.ky-side-contact{font-size:13px;color:var(--ky-weak);line-height:1.9}

/* ---------- 移动端顶栏 ---------- */
.ky-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;border-bottom:1px solid var(--ky-line);
  align-items:center;justify-content:space-between;
  padding:0 20px;z-index:1040;
}
.ky-topbar-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ky-text)}
.ky-topbar-brand .ky-brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px}
.ky-burger{
  width:44px;height:44px;border:1px solid var(--ky-line);border-radius:10px;
  background:#fff;color:var(--ky-primary);font-size:18px;cursor:pointer;
  display:grid;place-items:center;transition:background .2s,border-color .2s;
}
.ky-burger:hover{background:var(--ky-primary-soft);border-color:#C9DDF0}
.ky-drawer{width:302px;padding:20px 18px;border-right:none}
.ky-drawer .ky-brand{padding-left:0;padding-right:0}
.ky-drawer .ky-nav{margin-top:4px}
.ky-drawer .ky-nav-item{height:48px;border-bottom:1px solid var(--ky-line);border-radius:0;padding:0 8px}
.ky-drawer .ky-nav-item.active::before{display:none}
.ky-drawer .ky-nav-item.active{border-radius:8px}
.ky-drawer-foot{margin-top:22px}
.ky-drawer-foot .ky-btn{width:100%}
.ky-drawer-contact{margin-top:14px;font-size:13px;color:var(--ky-weak);line-height:1.8}

/* ---------- 主体 ---------- */
.ky-main{margin-left:264px;min-height:100vh;display:flex;flex-direction:column}
.ky-main>main{flex:1 0 auto}

/* ---------- 按钮 ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--ky-radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.ky-btn-primary{background:var(--ky-accent);color:#fff}
.ky-btn-primary:hover{background:var(--ky-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(224,138,60,.28)}
.ky-btn-primary:active{background:#B4661F;transform:translateY(0)}
.ky-btn-outline{background:#fff;color:var(--ky-primary);border-color:#9CC3DE}
.ky-btn-outline:hover{background:var(--ky-primary-soft);color:var(--ky-primary-hover);border-color:var(--ky-primary);transform:translateY(-2px)}
.ky-btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
.ky-btn-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.ky-btn-sm{height:40px;padding:0 18px;font-size:14px}
.ky-btn[disabled],.ky-btn.is-disabled{opacity:.5;pointer-events:none}
.ky-link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ky-primary);font-weight:600;font-size:15px;transition:color .2s;
}
.ky-link-arrow i{font-size:13px;transition:transform .2s}
.ky-link-arrow:hover{color:var(--ky-accent)}
.ky-link-arrow:hover i{transform:translateX(4px)}

/* ---------- 面包屑与页头 ---------- */
.ky-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ky-weak);padding:30px 0 0}
.ky-crumb a{transition:color .2s}
.ky-crumb a:hover{color:var(--ky-primary)}
.ky-crumb .sep{color:#C3D2E0}
.ky-crumb .cur{color:var(--ky-muted);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ky-page-head{
  display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-end;
  padding:22px 0 34px;border-bottom:1px solid var(--ky-line);
}
.ky-page-head-main{max-width:760px}
.ky-page-head h1{font-size:clamp(26px,3.4vw,38px);line-height:1.3;font-weight:700;margin:0 0 12px}
.ky-page-head p{margin:0;color:var(--ky-muted);font-size:16px}

/* ---------- 板块通用 ---------- */
.ky-section{padding:var(--ky-space) 0}
.ky-section-tight{padding:56px 0}
.ky-section-head{margin-bottom:32px;max-width:720px}
.ky-section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;margin:0 0 10px}
.ky-section-head p{margin:0;color:var(--ky-muted)}
.ky-eyebrow{
  display:inline-block;margin-bottom:12px;padding:5px 12px;border-radius:999px;
  background:var(--ky-primary-soft);color:var(--ky-primary);
  font-size:13px;font-weight:600;
}

/* ---------- 条目清单 ---------- */
.ky-spec-wrap{border-top:1px solid var(--ky-line)}
.ky-spec{display:flex;gap:18px;padding:26px 0;border-bottom:1px solid var(--ky-line);transition:background .2s}
.ky-spec:hover{background:#FAFCFE}
.ky-spec-num{
  flex:0 0 28px;width:28px;height:28px;margin-top:4px;border-radius:50%;
  border:1px solid var(--ky-primary);color:var(--ky-primary);
  font-size:13px;font-weight:700;display:grid;place-items:center;
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
}
.ky-spec-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:0 0 8px}
.ky-spec-body p{margin:0;color:var(--ky-muted);font-size:15.5px;line-height:1.75}
.ky-spec-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.ky-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--ky-primary-soft);color:var(--ky-primary);
  font-size:13px;line-height:1.6;
}
.ky-chip i{font-size:11px}

/* ---------- 侧注栏 ---------- */
.ky-aside-inner{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px}
.ky-aside-card{
  background:var(--ky-card);border:1px solid var(--ky-line);border-radius:var(--ky-radius);
  padding:24px;box-shadow:var(--ky-shadow);
}
.ky-aside-card h3{font-size:17px;font-weight:600;margin:0 0 12px}
.ky-aside-card p{color:var(--ky-muted);font-size:14px;line-height:1.8;margin:0 0 16px}
.ky-aside-thumb{border-radius:12px;overflow:hidden;border:1px solid var(--ky-line);margin-bottom:16px}
.ky-aside-thumb img{width:100%;height:132px;object-fit:cover}
.ky-aside-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.ky-aside-list li{display:flex;gap:8px;font-size:14px;color:var(--ky-muted);line-height:1.7}
.ky-aside-list i{color:var(--ky-accent);font-size:12px;margin-top:6px}
.ky-aside-card .ky-btn{width:100%}
.ky-aside-note{font-size:13px;color:var(--ky-weak);margin:12px 0 0}

/* ---------- 场景卡片 ---------- */
.ky-scene{
  height:100%;background:var(--ky-card);border:1px solid var(--ky-line);
  border-radius:var(--ky-radius);padding:24px;box-shadow:var(--ky-shadow);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.ky-scene:hover{transform:translateY(-2px);box-shadow:var(--ky-shadow-hover);border-color:#D3E3F0}
.ky-scene .ky-scene-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--ky-primary-soft);color:var(--ky-primary);font-size:18px;margin-bottom:16px;
}
.ky-scene h3{font-size:18px;font-weight:600;margin:0 0 8px}
.ky-scene p{color:var(--ky-muted);font-size:15px;line-height:1.75;margin:0 0 14px}
.ky-scene ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.ky-scene ul li{position:relative;padding-left:18px;font-size:14px;color:var(--ky-muted)}
.ky-scene ul li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:50%;background:var(--ky-accent);
}

/* ---------- 图文媒体带 ---------- */
.ky-media-band{
  background:var(--ky-section);border-radius:16px;padding:32px;
  display:grid;grid-template-columns:1.02fr 1fr;gap:32px;align-items:center;
}
.ky-media-band h2{font-size:clamp(20px,2.4vw,24px);line-height:1.4;font-weight:700;margin:0 0 12px}
.ky-media-band p{color:var(--ky-muted);margin:0 0 14px}
.ky-media-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.ky-media-list li{display:flex;gap:10px;font-size:15px;color:var(--ky-muted)}
.ky-media-list i{color:var(--ky-primary);font-size:13px;margin-top:6px}
.ky-media-figure{border-radius:14px;overflow:hidden;border:1px solid #D7E5F1;background:#fff}
.ky-media-figure img{width:100%;height:100%;max-height:320px;object-fit:cover}

/* ---------- 入口指引带 ---------- */
.ky-entry-band{
  position:relative;border-radius:16px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.ky-entry-band::after{
  content:"";position:absolute;inset:0;
  background:rgba(18,74,112,.62);
}
.ky-entry-inner{position:relative;z-index:2;padding:44px 40px;color:#fff}
.ky-entry-inner h2{font-size:clamp(21px,2.6vw,26px);font-weight:700;margin:0 0 10px;color:#fff}
.ky-entry-inner p{color:#D7E5F1;margin:0 0 20px;max-width:640px}
.ky-entry-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- CTA 条 ---------- */
.ky-cta{
  background:var(--ky-footer);border-radius:16px;
  padding:36px 40px;display:flex;flex-wrap:wrap;gap:24px;
  justify-content:space-between;align-items:center;
}
.ky-cta h2{font-size:clamp(20px,2.4vw,24px);font-weight:700;color:#fff;margin:0 0 8px}
.ky-cta p{color:#C9D6E2;margin:0;font-size:15px}
.ky-cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.ky-footer{background:var(--ky-footer);color:#C9D6E2;margin-top:var(--ky-space);padding:56px 0 24px}
.ky-footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);
}
.ky-footer h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 14px}
.ky-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.ky-footer-brand .ky-brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;background:#1D6FA5}
.ky-footer-top p{font-size:14px;line-height:1.85;color:#A9BCCE;margin:0;max-width:340px}
.ky-footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.ky-footer-links a,.ky-footer-links li{color:#C9D6E2;font-size:14px;transition:color .2s}
.ky-footer-links a:hover{color:#fff}
.ky-footer-bottom{
  padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:#8A99A8;
}
.ky-footer-bottom p{margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-sidebar{width:220px;padding:22px 14px}
  .ky-main{margin-left:220px}
  .ky-brand-text{font-size:16px}
}
@media (max-width:991.98px){
  .ky-sidebar{display:none}
  .ky-topbar{display:flex}
  .ky-main{margin-left:0;padding-top:60px}
  .ky-media-band{grid-template-columns:1fr;padding:26px}
  .ky-footer-top{grid-template-columns:1fr 1fr}
  .ky-aside-inner{position:static}
  .ky-container{padding:0 22px}
}
@media (max-width:767.98px){
  :root{--ky-space:48px}
  .ky-section{padding:48px 0}
  .ky-section-tight{padding:40px 0}
  .ky-page-head{padding:18px 0 26px}
  .ky-page-head .ky-btn{width:100%}
  .ky-cta{padding:28px 24px}
  .ky-cta-actions{width:100%}
  .ky-cta-actions .ky-btn{flex:1 1 auto;min-width:140px}
  .ky-entry-inner{padding:32px 24px}
  .ky-footer-top{grid-template-columns:1fr;gap:26px}
  .ky-spec{gap:14px;padding:22px 0}
}
@media (max-width:575.98px){
  .ky-container{padding:0 20px}
  .ky-page-head h1{font-size:24px}
  .ky-page-head p{font-size:15px}
  .ky-brand-text{font-size:15px}
  .ky-btn{height:44px;padding:0 20px;font-size:15px}
  .ky-spec-body h3{font-size:17px}
  .ky-spec-body p{font-size:15px}
  .ky-crumb .cur{max-width:200px}
}

/* roulang page: category3 */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-light:#EAF2F8;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-deep:#14212E;
  --ky-text:#14212E;
  --ky-text-2:#55677A;
  --ky-text-3:#8A99A8;
  --ky-border:#E2E9F1;
  --ky-radius-card:14px;
  --ky-radius-btn:10px;
  --ky-radius-img:14px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04), 0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06), 0 16px 32px rgba(20,40,70,.10);
  --ky-side-w:264px;
  --ky-font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}

*{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;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:inherit;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;}

.ky-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}

/* ============ 顶部移动端导航条 ============ */
.ky-topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:1040;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--ky-border);
  align-items:center;
  justify-content:space-between;
  padding:0 18px;
  box-shadow:0 1px 3px rgba(20,40,70,.04);
}

.ky-topbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--ky-text);
}

.ky-burger{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--ky-border);
  background:#fff;
  color:var(--ky-primary);
  font-size:18px;
  transition:background .2s,color .2s;
}
.ky-burger:hover{background:var(--ky-primary-light);color:var(--ky-primary-hover);}

/* ============ 左侧竖向导航 ============ */
.ky-shell{
  display:flex;
  align-items:stretch;
  min-height:100vh;
}

.ky-side{
  flex:0 0 var(--ky-side-w);
  width:var(--ky-side-w);
  position:sticky;
  top:0;
  align-self:flex-start;
  height:100vh;
  overflow-y:auto;
  background:#fff;
  border-right:1px solid var(--ky-border);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:22px;
  scrollbar-width:thin;
  scrollbar-color:#CBD9E5 transparent;
}
.ky-side::-webkit-scrollbar{width:6px;}
.ky-side::-webkit-scrollbar-thumb{background:#CBD9E5;border-radius:999px;}
.ky-side::-webkit-scrollbar-track{background:transparent;}

.ky-brand{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:0 6px;
  margin-bottom:4px;
}

.ky-brand-mark{
  flex:0 0 auto;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--ky-primary);
  color:#fff;
  font-size:17px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  letter-spacing:0;
}

.ky-brand-text{
  font-size:17px;
  font-weight:700;
  line-height:1.35;
  color:var(--ky-text);
}

.ky-nav{
  display:flex;
  flex-direction:column;
  gap:4px;
}

.ky-nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ky-text-2);
  transition:background .2s,color .2s;
}
.ky-nav-item i{
  width:18px;
  font-size:15px;
  color:var(--ky-text-3);
  transition:color .2s;
  text-align:center;
}
.ky-nav-item:hover{
  background:var(--ky-primary-light);
  color:var(--ky-primary);
}
.ky-nav-item:hover i{color:var(--ky-primary);}

.ky-nav-item.active{
  background:var(--ky-primary-light);
  color:var(--ky-primary);
  font-weight:600;
}
.ky-nav-item.active i{color:var(--ky-primary);}
.ky-nav-item.active::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  bottom:9px;
  width:3px;
  border-radius:2px;
  background:var(--ky-primary);
}

.ky-side-foot{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:0 4px;
}

.ky-side-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  border-radius:var(--ky-radius-btn);
  background:var(--ky-accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .2s,transform .2s,box-shadow .2s;
}
.ky-side-cta:hover{
  background:var(--ky-accent-hover);
  transform:translateY(-2px);
  box-shadow:0 8px 18px rgba(224,138,60,.28);
}

.ky-side-contact{
  font-size:13px;
  line-height:1.9;
  color:var(--ky-text-3);
}

/* ============ 主内容区 ============ */
.ky-content{
  flex:1 1 auto;
  min-width:0;
  display:flex;
  flex-direction:column;
  background:var(--ky-bg);
}

.ky-main{
  flex:1 1 auto;
}

/* 面包屑 */
.ky-crumb-wrap{
  background:#fff;
  border-bottom:1px solid var(--ky-border);
}
.ky-crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ky-text-3);
  padding:16px 0;
}
.ky-crumb a{color:var(--ky-text-2);transition:color .2s;}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb .ky-crumb-sep{color:#C3D0DC;}
.ky-crumb .ky-crumb-current{color:var(--ky-text);font-weight:600;}

/* 页面头部 */
.ky-pagehead{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.ky-pagehead::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(20,33,46,.62) 0%, rgba(18,74,112,.78) 100%);
}
.ky-pagehead-inner{
  position:relative;
  z-index:2;
  padding:64px 40px 60px;
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.ky-pagehead-tag{
  display:inline-block;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);
  color:#fff;
  font-size:13px;
  padding:5px 14px;
  border-radius:999px;
  margin-bottom:16px;
}
.ky-pagehead h1{
  font-size:clamp(28px,3.4vw,38px);
  line-height:1.28;
  color:#fff;
  max-width:760px;
}
.ky-pagehead p{
  margin-top:14px;
  font-size:16px;
  color:#C9D6E2;
  max-width:640px;
}

/* 板块 */
.ky-section{
  padding:76px 0 0;
}
.ky-section:last-of-type{
  padding-bottom:76px;
}
.ky-section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:34px;
}
.ky-section-head h2{
  font-size:clamp(22px,2.4vw,27px);
  color:var(--ky-text);
}
.ky-section-head .ky-section-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--ky-text-2);
  max-width:640px;
}

/* 按钮 */
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--ky-radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
  white-space:nowrap;
}
.ky-btn i{transition:transform .2s;}
.ky-btn:hover i{transform:translateX(4px);}
.ky-btn-primary{
  background:var(--ky-accent);
  color:#fff;
}
.ky-btn-primary:hover{
  background:var(--ky-accent-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(224,138,60,.3);
}
.ky-btn-ghost{
  background:#fff;
  color:var(--ky-primary);
  border-color:var(--ky-primary);
}
.ky-btn-ghost:hover{
  background:var(--ky-primary-light);
  color:var(--ky-primary-hover);
  transform:translateY(-2px);
}
.ky-btn-ghost-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.72);
}
.ky-btn-ghost-light:hover{
  background:rgba(255,255,255,.16);
  color:#fff;
  border-color:#fff;
}
.ky-btn-light{
  background:#fff;
  color:var(--ky-primary);
}
.ky-btn-light:hover{
  background:var(--ky-primary-light);
  color:var(--ky-primary-hover);
  transform:translateY(-2px);
}
.ky-btn:disabled,.ky-btn[aria-disabled="true"]{
  opacity:.5;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

/* 卡片矩阵 */
.ky-grid-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

.ky-card{
  display:flex;
  flex-direction:column;
  background:var(--ky-card);
  border:1px solid var(--ky-border);
  border-radius:var(--ky-radius-card);
  overflow:hidden;
  box-shadow:var(--ky-shadow);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.ky-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--ky-shadow-hover);
  border-color:#D3E2EE;
}
.ky-card:hover .ky-card-title{color:var(--ky-primary);}
.ky-card:hover .ky-link i{transform:translateX(4px);}

.ky-card-media{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#EAF2F8 0%,#D7E5F1 100%);
  overflow:hidden;
  border-bottom:1px solid var(--ky-border);
}
.ky-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s;
}
.ky-card:hover .ky-card-media img{transform:scale(1.03);}

.ky-card-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  gap:12px;
}

.ky-badge{
  display:inline-block;
  background:var(--ky-primary-light);
  color:var(--ky-primary);
  border-radius:999px;
  padding:5px 12px;
  font-size:13px;
  font-weight:500;
  line-height:1.4;
}

.ky-card-title{
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--ky-text);
  transition:color .2s;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.ky-card-desc{
  font-size:15px;
  line-height:1.75;
  color:var(--ky-text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.ky-card-foot{
  margin-top:auto;
  padding-top:6px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid var(--ky-border);
  padding-top:16px;
}

.ky-meta-time{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--ky-text-3);
}
.ky-meta-time i{font-size:12px;color:#A9B7C4;}

.ky-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ky-primary);
  transition:color .2s;
}
.ky-link i{font-size:12px;transition:transform .2s;}
.ky-link:hover{color:var(--ky-accent);}

/* 说明要点区 */
.ky-note{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
  background:#fff;
  border:1px solid var(--ky-border);
  border-radius:var(--ky-radius-card);
  box-shadow:var(--ky-shadow);
  padding:36px;
}
.ky-note-media{
  border-radius:var(--ky-radius-img);
  overflow:hidden;
  border:1px solid var(--ky-border);
  aspect-ratio:5/3;
  background:linear-gradient(135deg,#EAF2F8 0%,#D7E5F1 100%);
}
.ky-note-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.ky-note h2{
  font-size:clamp(21px,2.2vw,26px);
  margin-bottom:14px;
}
.ky-note p{
  font-size:16px;
  color:var(--ky-text-2);
  margin-bottom:20px;
}
.ky-points{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.ky-point{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:15px;
  color:var(--ky-text);
}
.ky-point .ky-point-ico{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:8px;
  background:var(--ky-primary-light);
  color:var(--ky-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  margin-top:2px;
}
.ky-point .ky-point-text{color:var(--ky-text-2);}
.ky-point .ky-point-text strong{color:var(--ky-text);font-weight:600;}

/* CTA 条 */
.ky-cta{
  background:var(--ky-deep);
  border-radius:16px;
  padding:34px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.ky-cta h2{
  font-size:clamp(20px,2.2vw,25px);
  color:#fff;
}
.ky-cta p{
  margin-top:8px;
  font-size:15px;
  color:#C9D6E2;
}
.ky-cta-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}

/* 页脚 */
.ky-footer{
  margin-top:80px;
  background:var(--ky-deep);
  color:#C9D6E2;
  padding:56px 0 26px;
}
.ky-footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
}
.ky-footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.ky-footer-brand .ky-brand-mark{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
}
.ky-footer p{
  font-size:14px;
  line-height:1.8;
  color:#C9D6E2;
  max-width:340px;
}
.ky-footer h4{
  font-size:15px;
  color:#fff;
  font-weight:600;
  margin-bottom:16px;
}
.ky-footer-links{
  display:flex;
  flex-direction:column;
  gap:11px;
}
.ky-footer-links a{
  font-size:14px;
  color:#C9D6E2;
  transition:color .2s;
}
.ky-footer-links a:hover{color:#fff;}
.ky-footer-links li{
  font-size:14px;
  color:#C9D6E2;
}
.ky-footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.ky-footer-bottom p{
  font-size:13px;
  color:#8A99A8;
  max-width:none;
}

/* 移动端抽屉 */
.ky-drawer{
  --bs-offcanvas-width:300px;
  background:#fff;
}
.ky-drawer .offcanvas-header{
  border-bottom:1px solid var(--ky-border);
  padding:16px 18px;
}
.ky-drawer .offcanvas-title{
  font-size:16px;
  font-weight:700;
  color:var(--ky-text);
}
.ky-drawer .offcanvas-body{
  padding:14px 12px;
}
.ky-drawer .ky-nav-item{
  height:48px;
  border-bottom:1px solid var(--ky-border);
  border-radius:0;
  padding:0 10px;
}
.ky-drawer .ky-nav-item.active::before{
  top:12px;
  bottom:12px;
}
.ky-drawer-foot{
  margin-top:22px;
  padding:0 10px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.ky-drawer-contact{
  font-size:13px;
  line-height:1.9;
  color:var(--ky-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--ky-side-w:220px;}
  .ky-grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ky-container{padding:0 32px;}
  .ky-pagehead-inner{padding:56px 32px 52px;}
  .ky-footer-top{grid-template-columns:1.4fr 1fr 1fr;}
  .ky-note{grid-template-columns:1fr;gap:28px;}
}

@media (max-width:991.98px){
  .ky-side{display:none;}
  .ky-topbar{display:flex;}
  .ky-shell{display:block;}
  .ky-container{padding:0 24px;}
  .ky-pagehead-inner{padding:48px 24px 44px;}
  .ky-section{padding:64px 0 0;}
  .ky-section:last-of-type{padding-bottom:64px;}
  .ky-cta{padding:30px 26px;}
  .ky-footer-top{grid-template-columns:1fr 1fr;gap:30px;}
  .ky-footer{margin-top:64px;}
}

@media (max-width:767.98px){
  .ky-grid-cards{grid-template-columns:1fr;}
  .ky-section{padding:48px 0 0;}
  .ky-section:last-of-type{padding-bottom:48px;}
  .ky-section-head{margin-bottom:24px;}
  .ky-card-body{padding:20px;}
  .ky-note{padding:24px;}
  .ky-cta{flex-direction:column;align-items:flex-start;}
  .ky-cta-actions{width:100%;}
  .ky-cta-actions .ky-btn{flex:1 1 auto;}
  .ky-footer-top{grid-template-columns:1fr;}
  .ky-footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:575.98px){
  .ky-container{padding:0 20px;}
  .ky-pagehead-inner{padding:40px 20px 38px;}
  .ky-pagehead p{font-size:15px;}
  .ky-btn{height:44px;padding:0 20px;font-size:14px;}
  .ky-card-title{font-size:17px;}
  .ky-cta{padding:26px 20px;border-radius:14px;}
  .ky-footer{padding:44px 0 22px;}
}

/* roulang page: category4 */
:root{
  --ky-primary:#1D6FA5;
  --ky-primary-hover:#175C8A;
  --ky-primary-active:#124A70;
  --ky-primary-soft:#EAF2F8;
  --ky-accent:#E08A3C;
  --ky-accent-hover:#C9762C;
  --ky-bg:#F5F8FB;
  --ky-card:#FFFFFF;
  --ky-deep:#14212E;
  --ky-text:#14212E;
  --ky-text-sub:#55677A;
  --ky-text-weak:#8A99A8;
  --ky-border:#E2E9F1;
  --ky-invert-soft:#C9D6E2;
  --ky-radius:14px;
  --ky-radius-sm:10px;
  --ky-radius-lg:16px;
  --ky-shadow:0 2px 4px rgba(20,40,70,.04),0 10px 24px rgba(20,40,70,.06);
  --ky-shadow-hover:0 4px 8px rgba(20,40,70,.06),0 16px 32px rgba(20,40,70,.10);
  --ky-gap:24px;
  --ky-section:80px;
  --ky-font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*,*::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;border-style:none;}
a{color:var(--ky-primary);text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease;}
a:hover{color:var(--ky-primary-hover);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:0;color:var(--ky-text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--ky-primary);outline-offset:2px;}

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

/* 布局骨架 */
.ky-layout{display:flex;align-items:flex-start;min-height:100vh;}
.ky-sidebar{
  position:sticky;top:0;height:100vh;width:264px;flex:0 0 264px;
  background:#fff;border-right:1px solid var(--ky-border);
  display:flex;flex-direction:column;
  padding:22px 18px 20px;overflow-y:auto;scrollbar-width:thin;
}
.ky-sidebar::-webkit-scrollbar{width:6px;}
.ky-sidebar::-webkit-scrollbar-thumb{background:#D7E2EC;border-radius:999px;}
.ky-sidebar::-webkit-scrollbar-track{background:transparent;}
.ky-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh;}
.ky-content{flex:1 1 auto;padding-bottom:8px;}

/* 品牌 */
.ky-brand{display:flex;align-items:center;gap:10px;padding:0 8px 18px;border-bottom:1px solid var(--ky-border);margin-bottom:16px;}
.ky-brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(135deg,#1D6FA5,#2E90CE);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(29,111,165,.22);
}
.ky-brand-text{font-size:17px;font-weight:700;line-height:1.32;color:var(--ky-text);}

/* 侧栏导航 */
.ky-nav{display:flex;flex-direction:column;gap:4px;}
.ky-nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--ky-radius-sm);
  font-size:15px;color:var(--ky-text-sub);
  transition:background .2s ease,color .2s ease;
}
.ky-nav-item i{width:18px;text-align:center;font-size:14px;color:var(--ky-text-weak);transition:color .2s ease;}
.ky-nav-item:hover{background:#F0F5FA;color:var(--ky-primary);}
.ky-nav-item:hover i{color:var(--ky-primary);}
.ky-nav-item.active{background:var(--ky-primary-soft);color:var(--ky-primary);font-weight:600;}
.ky-nav-item.active i{color:var(--ky-primary);}
.ky-nav-item.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--ky-primary);
}
.ky-side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--ky-border);}
.ky-side-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:46px;border-radius:var(--ky-radius-sm);
  background:var(--ky-accent);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.ky-side-btn:hover{background:var(--ky-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 10px 20px rgba(224,138,60,.26);}
.ky-side-contact{margin-top:14px;font-size:13px;line-height:1.95;color:var(--ky-text-weak);}

/* 移动端顶栏 */
.ky-topbar{
  display:none;position:sticky;top:0;z-index:1030;
  align-items:center;justify-content:space-between;
  height:60px;padding:0 20px;background:#fff;border-bottom:1px solid var(--ky-border);
  box-shadow:0 2px 10px rgba(20,40,70,.04);
}
.ky-topbar .ky-brand{padding:0;border:0;margin:0;}
.ky-topbar .ky-brand-text{font-size:15px;max-width:180px;}
.ky-burger{
  width:44px;height:44px;border:1px solid var(--ky-border);background:#fff;
  border-radius:10px;color:var(--ky-text);font-size:17px;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.ky-burger:hover{background:var(--ky-primary-soft);border-color:#C9DDEB;color:var(--ky-primary);}

/* 抽屉 */
.ky-drawer{width:308px;max-width:86vw;background:#fff;border-right:1px solid var(--ky-border);}
.ky-drawer .offcanvas-header{padding:16px 18px;border-bottom:1px solid var(--ky-border);}
.ky-drawer .offcanvas-header .ky-brand{padding:0;border:0;margin:0;}
.ky-drawer .offcanvas-body{padding:14px 16px 26px;display:flex;flex-direction:column;}
.ky-drawer .ky-nav-item{height:48px;border-bottom:1px solid var(--ky-border);border-radius:8px;}
.ky-drawer .ky-nav-item.active::before{top:12px;bottom:12px;}
.ky-drawer .ky-side-foot{margin-top:24px;}
.ky-drawer .btn-close{--bs-btn-close-focus-shadow:none;opacity:.5;}
.ky-drawer .btn-close:hover{opacity:.9;}

/* 页头带 */
.ky-pageband{background:linear-gradient(180deg,#EAF2F8 0%,#F5F8FB 100%);border-bottom:1px solid var(--ky-border);padding:0 0 40px;}
.ky-crumb{font-size:13px;color:var(--ky-text-weak);padding-top:26px;}
.ky-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.ky-crumb li{display:flex;align-items:center;gap:8px;min-width:0;}
.ky-crumb li+li::before{content:"/";color:#C3CFDB;}
.ky-crumb a{color:var(--ky-text-sub);}
.ky-crumb a:hover{color:var(--ky-primary);}
.ky-crumb .current{color:var(--ky-text);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.ky-page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;padding-top:22px;}
.ky-page-head-main{max-width:760px;}
.ky-h1{font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;margin-top:14px;}
.ky-lead{margin-top:16px;font-size:16px;line-height:1.75;color:var(--ky-text-sub);}
.ky-page-actions{display:flex;gap:12px;flex-wrap:wrap;padding-bottom:6px;}

/* 徽章 */
.ky-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--ky-primary-soft);color:var(--ky-primary);
  font-size:13px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:999px;
}
.ky-badge-warm{background:#FDF1E5;color:var(--ky-accent-hover);}

/* 通用标题 */
.ky-h2{font-size:clamp(24px,2.4vw,28px);line-height:1.35;font-weight:700;}
.ky-h3{font-size:18px;line-height:1.5;font-weight:600;}
.ky-sub{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ky-text-sub);}
.ky-section{margin-top:var(--ky-section);}
.ky-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.ky-text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ky-primary);
}
.ky-text-link i{font-size:13px;transition:transform .2s ease;}
.ky-text-link:hover i{transform:translateX(4px);}

/* 按钮 */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--ky-radius-sm);
  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 i{font-size:13px;}
.ky-btn-primary{background:var(--ky-accent);color:#fff;}
.ky-btn-primary:hover{background:var(--ky-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(224,138,60,.3);}
.ky-btn-primary:active{background:#B96A26;transform:translateY(0);}
.ky-btn-ghost{background:#fff;color:var(--ky-primary);border-color:#C9DDEB;}
.ky-btn-ghost:hover{background:var(--ky-primary-soft);color:var(--ky-primary-hover);border-color:#A9CDE4;transform:translateY(-2px);}
.ky-btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.ky-btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.ky-btn[disabled]{opacity:.5;pointer-events:none;}

/* 快速定位区块 */
.ky-find{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--ky-border);border-radius:var(--ky-radius);
  box-shadow:var(--ky-shadow);padding:28px;
}
.ky-find-media{margin:0;border-radius:var(--ky-radius);overflow:hidden;border:1px solid var(--ky-border);}
.ky-find-media img{width:100%;aspect-ratio:5/3;object-fit:cover;}
.ky-find-body .ky-h2{margin-top:16px;}
.ky-find-body .ky-sub{margin-top:14px;}
.ky-check-list{margin-top:18px;}
.ky-check-list li{
  position:relative;padding-left:28px;margin-top:12px;
  font-size:15px;color:var(--ky-text-sub);line-height:1.7;
}
.ky-check-list li::before{
  content:"";position:absolute;left:2px;top:8px;width:13px;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-layout{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.ky-faq-aside .ky-sub{margin-top:14px;}
.ky-faq-aside .ky-btn{margin-top:22px;}
.ky-faq{border-top:1px solid var(--ky-border);}
.ky-faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--ky-border);}
.ky-faq .accordion-header{margin:0;}
.ky-faq .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;min-height:52px;padding:14px 0;
  background:transparent;border:0;border-radius:0;box-shadow:none;
  font-size:16px;font-weight:600;color:var(--ky-text);text-align:left;line-height:1.6;
}
.ky-faq .accordion-button:not(.collapsed){color:var(--ky-primary);background:transparent;box-shadow:none;}
.ky-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--ky-primary);outline-offset:-2px;border-radius:8px;}
.ky-faq .accordion-button::after{display:none;}
.ky-faq .ky-faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--ky-border);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--ky-text-sub);
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.ky-faq .accordion-button:not(.collapsed) .ky-faq-icon{
  transform:rotate(45deg);background:var(--ky-accent);border-color:var(--ky-accent);color:#fff;
}
.ky-faq .accordion-body{padding:2px 0 18px;font-size:15px;line-height:1.85;color:var(--ky-text-sub);max-width:760px;}

/* 对照表 */
.ky-table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--ky-border);
  border-radius:var(--ky-radius);box-shadow:var(--ky-shadow);
}
.ky-table{min-width:680px;}
.ky-table thead th{
  background:var(--ky-primary-soft);color:var(--ky-primary-active);
  font-size:14px;font-weight:600;text-align:left;
  padding:15px 22px;border-bottom:1px solid var(--ky-border);white-space:nowrap;
}
.ky-table td{
  padding:15px 22px;font-size:15px;color:var(--ky-text-sub);line-height:1.7;
  border-bottom:1px solid var(--ky-border);vertical-align:top;
}
.ky-table tbody tr:nth-child(even){background:#F8FBFD;}
.ky-table tbody tr:hover{background:#F0F6FB;}
.ky-table tbody tr:last-child td{border-bottom:0;}
.ky-table td:first-child{color:var(--ky-text);font-weight:600;}
.ky-table-note{margin-top:14px;font-size:13px;color:var(--ky-text-weak);}

/* 三步条 */
.ky-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.ky-step{position:relative;padding-right:48px;}
.ky-step:not(:last-child)::after{
  content:"";position:absolute;left:48px;right:26px;top:15px;
  border-top:1px dashed #C7D8E6;
}
.ky-step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--ky-accent);background:#fff;color:var(--ky-accent);
  font-size:13px;font-weight:700;letter-spacing:0;
}
.ky-step-title{margin-top:16px;font-size:18px;font-weight:600;line-height:1.5;}
.ky-step-text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ky-text-sub);max-width:280px;}

/* CTA */
.ky-cta{
  background:var(--ky-deep);border-radius:var(--ky-radius-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.ky-cta h2{color:#fff;font-size:24px;line-height:1.35;}
.ky-cta p{margin-top:10px;font-size:15px;color:var(--ky-invert-soft);}
.ky-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.ky-footer{background:var(--ky-deep);color:var(--ky-invert-soft);margin-top:var(--ky-section);padding:56px 0 26px;}
.ky-footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.ky-footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.ky-footer p{font-size:14px;line-height:1.9;color:#9FB2C4;max-width:320px;}
.ky-footer h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.ky-footer-links li{font-size:14px;color:#9FB2C4;line-height:1.9;margin-bottom:10px;}
.ky-footer-links a{font-size:14px;color:var(--ky-invert-soft);}
.ky-footer-links a:hover{color:#fff;}
.ky-footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9AAB;
}

/* 响应式 */
@media (max-width:1199.98px){
  .ky-sidebar{width:220px;flex:0 0 220px;}
  .ky-faq-layout{grid-template-columns:260px 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .ky-layout{display:block;}
  .ky-sidebar{display:none;}
  .ky-topbar{display:flex;}
  .ky-content{padding-top:0;}
  .ky-section{margin-top:64px;}
  .ky-footer{margin-top:64px;}
  .ky-page-head{flex-direction:column;align-items:flex-start;gap:22px;}
  .ky-page-actions{padding-bottom:0;}
  .ky-find{grid-template-columns:1fr;gap:28px;padding:22px;}
  .ky-faq-layout{grid-template-columns:1fr;gap:26px;}
  .ky-cta{padding:30px 26px;}
  .ky-footer-top{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .ky-section{margin-top:48px;}
  .ky-footer{margin-top:48px;}
  .ky-sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .ky-steps{grid-template-columns:1fr;gap:0;}
  .ky-step{padding:0 0 26px 46px;}
  .ky-step:not(:last-child)::after{
    left:15px;right:auto;top:44px;bottom:6px;width:0;border-top:0;
    border-left:1px dashed #C7D8E6;
  }
  .ky-step-num{position:absolute;left:0;top:0;}
  .ky-step-title{margin-top:0;}
  .ky-step-text{max-width:none;}
  .ky-pageband{padding-bottom:30px;}
}
@media (max-width:575.98px){
  .ky-container{padding:0 20px;}
  body{font-size:15px;}
  .ky-lead{font-size:15px;}
  .ky-btn{height:44px;padding:0 20px;font-size:15px;}
  .ky-cta{padding:26px 20px;}
  .ky-cta h2{font-size:20px;}
  .ky-cta-actions{width:100%;}
  .ky-cta-actions .ky-btn{flex:1 1 auto;}
  .ky-footer{padding:42px 0 22px;}
  .ky-footer-top{grid-template-columns:1fr;}
  .ky-find{padding:18px;}
  .ky-table thead th,.ky-table td{padding:12px 16px;}
}