/* roulang page: index */
:root{
  --kai-primary:#0E6B5C;
  --kai-primary-deep:#0A4B41;
  --kai-primary-soft:#E4F0EC;
  --kai-accent:#E08A2B;
  --kai-accent-soft:#FBF0E1;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-line:#E4E6E1;
  --kai-title:#14201E;
  --kai-body:#3C4A47;
  --kai-muted:#7C8B88;
  --kai-danger:#C0553C;
  --kai-radius-s:8px;
  --kai-radius-m:14px;
  --kai-radius-l:22px;
  --kai-shadow-1:0 1px 2px rgba(20,32,30,.05);
  --kai-shadow-2:0 16px 36px -18px rgba(14,107,92,.28);
  --kai-grad:linear-gradient(135deg,#0E6B5C 0%,#2E9C87 55%,#8ACBB7 100%);
  --kai-container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;
  color:var(--kai-body);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--kai-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--kai-accent)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--kai-title);font-weight:700;margin:0 0 14px;letter-spacing:.005em}
h1{font-size:46px;line-height:1.2}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.4}
h4{font-size:18px;line-height:1.45;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.kai-num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px;border-radius:4px}

.kai-container{width:100%;max-width:var(--kai-container);margin:0 auto;padding:0 24px}
.kai-section{padding:96px 0}
.kai-section--tight{padding:72px 0}
.kai-surface{background:var(--kai-surface)}
.kai-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.02em;font-weight:600;
  color:var(--kai-primary);background:var(--kai-primary-soft);
  border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.kai-lead{font-size:17px;color:var(--kai-body);max-width:760px}
.kai-muted{color:var(--kai-muted)}
.kai-hr{height:1px;background:var(--kai-line);border:0;margin:0}
.kai-grad-line{height:3px;width:120px;border-radius:999px;background:linear-gradient(90deg,var(--kai-primary),var(--kai-accent))}

/* 按钮 */
.btn-kai-primary,.btn-kai-ghost,.btn-kai-light{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-weight:600;font-size:15px;padding:12px 26px;border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.2}
.btn-kai-primary{background:var(--kai-accent);color:#2B1A05;box-shadow:var(--kai-shadow-1)}
.btn-kai-primary:hover{background:#E8973D;color:#2B1A05;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(224,138,43,.65)}
.btn-kai-primary:active{transform:translateY(0);box-shadow:var(--kai-shadow-1)}
.btn-kai-ghost{background:transparent;color:var(--kai-primary);border-color:rgba(14,107,92,.45)}
.btn-kai-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-deep);border-color:var(--kai-primary)}
.btn-kai-light{background:rgba(255,255,255,.14);color:#EAF6F2;border-color:rgba(255,255,255,.38)}
.btn-kai-light:hover{background:rgba(255,255,255,.24);color:#fff}
.kai-link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--kai-primary)}
.kai-link-arrow i{transition:transform .2s ease}
.kai-link-arrow:hover{color:var(--kai-accent)}
.kai-link-arrow:hover i{transform:translateX(3px)}

/* 徽章 */
.kai-badge{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:6px;background:var(--kai-primary-soft);color:var(--kai-primary-deep);letter-spacing:.02em}
.kai-badge--accent{background:var(--kai-accent-soft);color:#8A5313}
.kai-badge--float{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--kai-primary-deep);box-shadow:var(--kai-shadow-1)}

/* 导航 */
.kai-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.94);border-bottom:1px solid var(--kai-line);transition:background .25s ease,box-shadow .25s ease}
.kai-header.is-scrolled{background:rgba(255,255,255,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 24px -18px rgba(20,32,30,.4)}
.kai-nav{display:flex;align-items:center;gap:24px;min-height:64px}
.kai-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.kai-logo-mark{width:28px;height:28px;color:var(--kai-primary);flex:0 0 auto}
.kai-logo-text{font-size:17px;font-weight:700;color:var(--kai-title);letter-spacing:.01em}
.kai-logo-text .kai-dot{color:var(--kai-accent);margin:0 3px}
.kai-logo-text em{font-style:normal;font-size:13px;color:var(--kai-muted);font-weight:600;letter-spacing:.04em}
.kai-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.kai-nav-link{position:relative;display:block;padding:8px 12px;font-size:14px;font-weight:500;color:var(--kai-body);border-radius:8px;white-space:nowrap}
.kai-nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--kai-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.kai-nav-link:hover{color:var(--kai-primary)}
.kai-nav-link:hover::after{transform:scaleX(1)}
.kai-nav-link.active{color:var(--kai-primary);font-weight:600}
.kai-nav-link.active::after{transform:scaleX(1)}
.kai-nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.kai-search{position:relative}
.kai-search input{width:230px;height:38px;border-radius:10px;border:1px solid var(--kai-line);background:#F1F0EB;padding:0 66px 0 36px;font-size:14px;transition:all .2s ease}
.kai-search input::placeholder{color:var(--kai-muted)}
.kai-search input:focus{outline:none;border-color:var(--kai-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,107,92,.14)}
.kai-search .kai-search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--kai-muted);font-size:13px;pointer-events:none}
.kai-kbd{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:11px;color:var(--kai-muted);background:#fff;border:1px solid var(--kai-line);border-radius:6px;padding:1px 6px;pointer-events:none}
.kai-suggest{position:absolute;top:46px;left:0;width:330px;background:#fff;border:1px solid var(--kai-line);border-radius:14px;box-shadow:var(--kai-shadow-2);padding:12px;display:none}
.kai-search.is-open .kai-suggest{display:block}
.kai-suggest-title{font-size:12px;color:var(--kai-muted);letter-spacing:.06em;margin:6px 6px;font-weight:600}
.kai-suggest a{display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--kai-body)}
.kai-suggest a:hover{background:var(--kai-primary-soft);color:var(--kai-primary-deep)}
.kai-icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-body);transition:all .2s ease}
.kai-icon-btn:hover{border-color:var(--kai-primary);color:var(--kai-primary);background:var(--kai-primary-soft)}
.kai-nav-cta{padding:10px 20px;font-size:14px}
.kai-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-title);align-items:center;justify-content:center}
.kai-burger:hover{border-color:var(--kai-primary);color:var(--kai-primary)}

/* Hero */
.kai-hero{position:relative;background:var(--kai-bg);overflow:hidden;padding:84px 0 88px}
.kai-hero-clouds{position:absolute;right:-60px;top:-40px;width:620px;max-width:70%;color:var(--kai-primary);opacity:.12;pointer-events:none}
.kai-hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.kai-hero h1 span{color:var(--kai-primary)}
.kai-hero-sub{font-size:18px;color:var(--kai-body);max-width:430px;margin-bottom:12px}
.kai-hero-desc{font-size:15px;color:var(--kai-muted);max-width:470px;margin-bottom:28px}
.kai-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.kai-chips{display:flex;flex-wrap:wrap;gap:10px}
.kai-chip{font-size:12px;font-weight:600;color:var(--kai-primary-deep);background:var(--kai-primary-soft);border-radius:8px;padding:6px 12px;letter-spacing:.02em}
.kai-hero-visual{position:relative}
.kai-hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--kai-radius-l);border:1px solid var(--kai-line);box-shadow:var(--kai-shadow-2)}
.kai-hero-visual::after{content:"";position:absolute;inset:0;border-radius:var(--kai-radius-l);background:var(--kai-grad);opacity:.18;pointer-events:none}
.kai-float-card{position:absolute;right:-12px;bottom:-22px;background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);box-shadow:var(--kai-shadow-2);padding:16px 20px;min-width:190px}
.kai-float-card strong{display:block;font-size:28px;color:var(--kai-primary);line-height:1.1}
.kai-float-card span{font-size:12px;color:var(--kai-muted);letter-spacing:.02em}

/* 痛点 */
.kai-pain{display:grid;grid-template-columns:4fr 8fr;gap:56px}
.kai-pain-left{position:sticky;top:96px;align-self:start}
.kai-pain-list{border-top:1px solid var(--kai-line)}
.kai-pain-item{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--kai-line)}
.kai-pain-item .kai-idx{font-size:15px;font-weight:700;color:var(--kai-accent);letter-spacing:.04em}
.kai-pain-item h3{margin-bottom:6px;font-size:19px}
.kai-pain-item p{font-size:15px;color:var(--kai-muted);margin:0}

/* Zigzag */
.kai-zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.kai-zig + .kai-zig{border-top:1px solid var(--kai-line)}
.kai-zig.reverse .kai-zig-media{order:2}
.kai-zig img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--kai-radius-l);border:1px solid var(--kai-line);box-shadow:var(--kai-shadow-1)}
.kai-zig h3{margin-bottom:12px}
.kai-zig p{font-size:15.5px;color:var(--kai-body)}
.kai-zig .kai-zig-list{margin:16px 0 20px}
.kai-zig .kai-zig-list li{position:relative;padding-left:20px;font-size:15px;color:var(--kai-muted);margin-bottom:8px}
.kai-zig .kai-zig-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--kai-accent)}

/* 数据带 */
.kai-band{background:var(--kai-primary-deep);color:#E9F4F0;position:relative;overflow:hidden}
.kai-band::before{content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.22}
.kai-band .kai-container{position:relative}
.kai-band h2{color:#fff}
.kai-band .kai-lead{color:rgba(233,244,240,.8)}
.kai-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:44px}
.kai-stat{border-left:1px solid rgba(233,244,240,.22);padding-left:20px}
.kai-stat strong{display:block;font-size:40px;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.kai-stat strong em{font-style:normal;font-size:15px;font-weight:600;color:#C7E6DC;margin-left:4px}
.kai-stat span{display:block;font-size:13px;color:rgba(233,244,240,.68);margin-top:8px}
.kai-meter{margin-top:44px}
.kai-meter-bar{height:8px;border-radius:999px;background:rgba(233,244,240,.18);overflow:hidden}
.kai-meter-bar i{display:block;height:100%;width:78%;border-radius:999px;background:linear-gradient(90deg,#8ACBB7,var(--kai-accent))}
.kai-meter-label{display:flex;justify-content:space-between;font-size:13px;color:rgba(233,244,240,.72);margin-top:10px}

/* 能力矩阵 */
.kai-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 32px}
.kai-tab{font-size:13px;font-weight:600;padding:8px 16px;border-radius:999px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-body);cursor:default}
.kai-tab.is-on{background:var(--kai-primary);border-color:var(--kai-primary);color:#fff}
.kai-cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.kai-cap{background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);padding:30px;box-shadow:var(--kai-shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.kai-cap:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.32);box-shadow:var(--kai-shadow-2)}
.kai-cap-icon{width:46px;height:46px;border-radius:12px;background:var(--kai-primary-soft);color:var(--kai-primary);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px}
.kai-cap h3{font-size:20px;margin-bottom:10px}
.kai-cap p{font-size:15px;color:var(--kai-muted);margin-bottom:16px}

/* 资讯卡 */
.kai-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);overflow:hidden;box-shadow:var(--kai-shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;height:100%;display:flex;flex-direction:column}
.kai-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--kai-shadow-2)}
.kai-card-cover{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:var(--kai-primary-soft)}
.kai-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.kai-card:hover .kai-card-cover img{transform:scale(1.03)}
.kai-card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.kai-card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--kai-muted)}
.kai-card h3{font-size:17px;line-height:1.5;margin:0}
.kai-card h3 a{color:var(--kai-title)}
.kai-card h3 a:hover{color:var(--kai-primary)}
.kai-card p{font-size:14.5px;color:var(--kai-muted);margin:0}
.kai-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kai-card-foot{margin-top:auto;padding-top:6px}
.kai-empty{border:1px dashed var(--kai-line);border-radius:var(--kai-radius-m);min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--kai-muted);background:#fff;text-align:center;padding:32px}

/* 证言 */
.kai-quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.kai-quote{background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);padding:28px;box-shadow:var(--kai-shadow-1);transition:transform .2s ease,box-shadow .2s ease}
.kai-quote:hover{transform:translateY(-2px);box-shadow:var(--kai-shadow-2)}
.kai-quote:nth-child(2){margin-top:34px}
.kai-quote:nth-child(3){margin-top:-14px}
.kai-quote-text{font-size:16px;color:var(--kai-body);margin-bottom:20px}
.kai-quote-user{display:flex;align-items:center;gap:12px}
.kai-avatar{width:44px;height:44px;border-radius:50%;background:var(--kai-primary-soft);color:var(--kai-primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto}
.kai-quote-user strong{display:block;font-size:15px;color:var(--kai-title)}
.kai-quote-user span{font-size:13px;color:var(--kai-muted)}

/* FAQ */
.kai-accordion .accordion-item{border:0;border-bottom:1px solid var(--kai-line);background:transparent}
.kai-accordion .accordion-button{background:transparent;box-shadow:none;font-size:16px;font-weight:600;color:var(--kai-title);padding:22px 44px 22px 0;border-radius:0}
.kai-accordion .accordion-button:not(.collapsed){color:var(--kai-primary);background:transparent}
.kai-accordion .accordion-button:focus{box-shadow:none;outline:none}
.kai-accordion .accordion-button::after{background-image:none;content:"+";font-size:22px;font-weight:400;color:var(--kai-primary);width:22px;height:22px;line-height:1;display:flex;align-items:center;justify-content:center;transition:transform .22s ease;transform:none}
.kai-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.kai-accordion .accordion-body{background:var(--kai-bg);font-size:15px;line-height:1.8;color:var(--kai-body);padding:4px 24px 24px 0}

/* 表单 */
.kai-form-panel{background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-l);padding:32px;box-shadow:var(--kai-shadow-2)}
.kai-field{margin-bottom:18px}
.kai-field label{display:block;font-size:14px;font-weight:600;color:var(--kai-title);margin-bottom:6px}
.kai-field input,.kai-field textarea,.kai-field select{width:100%;height:44px;border-radius:10px;border:1px solid var(--kai-line);background:#FDFDFB;padding:12px 14px;font-size:15px;transition:all .2s ease}
.kai-field textarea{height:auto;min-height:96px;resize:vertical}
.kai-field input:focus,.kai-field textarea:focus,.kai-field select:focus{outline:none;border-color:var(--kai-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,107,92,.14)}
.kai-form-tip{font-size:13px;color:var(--kai-muted);margin-top:12px}
.kai-form-msg{display:none;font-size:14px;color:var(--kai-primary);background:var(--kai-primary-soft);border-radius:10px;padding:10px 14px;margin-top:14px}
.kai-form-msg.is-on{display:block}

/* CTA 区 */
.kai-cta{background:var(--kai-surface);border-top:1px solid var(--kai-line);padding:96px 0 110px}
.kai-cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:start}
.kai-cta-list{margin-top:24px}
.kai-cta-list li{position:relative;padding-left:22px;font-size:15px;color:var(--kai-muted);margin-bottom:10px}
.kai-cta-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:1px;font-size:12px;color:var(--kai-primary)}

/* 页脚 */
.kai-footer{background:var(--kai-primary-deep);color:rgba(233,244,240,.78);padding:64px 0 28px;position:relative}
.kai-footer::before{content:"";position:absolute;top:0;left:0;height:3px;width:120px;background:linear-gradient(90deg,var(--kai-primary),var(--kai-accent))}
.kai-footer-grid{display:grid;grid-template-columns:5fr 3fr 3fr 3fr;gap:40px}
.kai-footer .kai-logo-text{color:#fff}
.kai-footer .kai-logo-text em{color:rgba(233,244,240,.6)}
.kai-footer .kai-logo-mark{color:#8ACBB7}
.kai-footer p{font-size:14px;color:rgba(233,244,240,.7);margin-top:16px;max-width:320px}
.kai-footer h4{color:#fff;font-size:13px;letter-spacing:.08em;font-weight:600;margin-bottom:18px}
.kai-footer li{margin-bottom:10px}
.kai-footer a{color:rgba(233,244,240,.78);font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease}
.kai-footer a:hover{color:var(--kai-accent);transform:translateX(2px)}
.kai-footer-bottom{margin-top:40px;padding-top:24px;border-top:1px solid rgba(233,244,240,.16);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(233,244,240,.6)}

/* 响应式 */
@media (max-width:1199px){
  .kai-container{max-width:100%}
  h1{font-size:40px}
}
@media (max-width:991px){
  .kai-section{padding:64px 0}
  .kai-menu,.kai-search,.kai-icon-btn{display:none}
  .kai-burger{display:inline-flex}
  .kai-nav{min-height:56px;gap:16px}
  .kai-hero{padding:56px 0 64px}
  .kai-hero-grid{grid-template-columns:1fr;gap:36px}
  .kai-hero-sub,.kai-hero-desc{max-width:none}
  .kai-pain{grid-template-columns:1fr;gap:28px}
  .kai-pain-left{position:static}
  .kai-zig{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .kai-zig.reverse .kai-zig-media{order:0}
  .kai-stats{grid-template-columns:repeat(2,1fr);gap:24px}
  .kai-cap-grid{grid-template-columns:1fr}
  .kai-quotes{grid-template-columns:1fr}
  .kai-quote:nth-child(2),.kai-quote:nth-child(3){margin-top:0}
  .kai-cta-grid{grid-template-columns:1fr;gap:32px}
  .kai-cta{padding:64px 0 72px}
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  h2{font-size:26px}
}
@media (max-width:575px){
  .kai-container{padding:0 16px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  body{line-height:1.8}
  .kai-section{padding:56px 0}
  .kai-hero-visual img{aspect-ratio:16/10}
  .kai-float-card{right:8px;bottom:-18px;padding:12px 16px;min-width:150px}
  .kai-float-card strong{font-size:22px}
  .kai-stats{grid-template-columns:1fr}
  .kai-stat{border-left:0;border-top:1px solid rgba(233,244,240,.22);padding:16px 0 0}
  .kai-card-body{padding:20px}
  .kai-form-panel{padding:22px}
  .kai-footer-grid{grid-template-columns:1fr}
  .kai-pain-item{grid-template-columns:48px 1fr;gap:16px}
}

/* roulang page: article */
:root{
  --kai-primary:#0E6B5C;
  --kai-primary-deep:#0A4B41;
  --kai-primary-soft:#E4F0EC;
  --kai-accent:#E08A2B;
  --kai-accent-soft:#FBF0E1;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-line:#E4E6E1;
  --kai-ink:#14201E;
  --kai-text:#3C4A47;
  --kai-muted:#7C8B88;
  --kai-r-s:8px;
  --kai-r-m:14px;
  --kai-r-l:22px;
  --kai-sh-1:0 1px 2px rgba(20,32,30,.05);
  --kai-sh-2:0 16px 36px -18px rgba(14,107,92,.28);
  --kai-font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--kai-font);
  font-size:16px;
  line-height:1.75;
  color:var(--kai-text);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--kai-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--kai-accent)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--kai-ink);font-weight:700;line-height:1.3}
p{margin:0}
::selection{background:var(--kai-primary-soft);color:var(--kai-primary-deep)}
:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px}

.kai-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.kai-narrow{max-width:1080px}

/* ============ 顶部命令栏 ============ */
.kai-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--kai-line);
  transition:background .25s ease,box-shadow .25s ease;
}
.kai-header.kai-scrolled{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--kai-sh-1);
}
.kai-nav{display:flex;align-items:center;gap:20px;height:64px}
.kai-logo{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;color:var(--kai-primary)}
.kai-logo-mark{width:28px;height:28px;stroke:currentColor;flex-shrink:0}
.kai-logo-text{font-size:19px;font-weight:700;color:var(--kai-ink);letter-spacing:.01em;white-space:nowrap}
.kai-logo-text em{font-style:normal;font-size:12.5px;font-weight:500;color:var(--kai-muted);margin-left:2px}
.kai-dot{color:var(--kai-accent);margin:0 1px}
.kai-menu{display:flex;align-items:center;gap:2px;margin-left:10px}
.kai-nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;border-radius:var(--kai-r-s);
  font-size:14px;font-weight:500;color:var(--kai-text);
  white-space:nowrap;transition:color .2s ease;
}
.kai-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--kai-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.kai-nav-link:hover{color:var(--kai-primary)}
.kai-nav-link:hover::after{transform:scaleX(1)}
.kai-nav-link.active{color:var(--kai-primary);font-weight:600}
.kai-nav-link.active::after{transform:scaleX(1)}
.kai-nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.kai-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:258px;height:38px;padding:0 10px 0 12px;
  border:1px solid var(--kai-line);border-radius:10px;background:#FBFBF9;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.kai-search:focus-within{border-color:var(--kai-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,107,92,.12)}
.kai-search-icon{font-size:13px;color:var(--kai-muted)}
.kai-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:13px;color:var(--kai-ink);font-family:inherit;
}
.kai-search input::placeholder{color:#A6B1AE}
.kai-kbd{
  flex-shrink:0;font-size:11px;color:var(--kai-muted);
  border:1px solid var(--kai-line);border-radius:6px;padding:1px 6px;background:#fff;
}
.kai-suggest{
  position:absolute;top:46px;left:0;width:302px;padding:10px;
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-r-m);
  box-shadow:var(--kai-sh-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.kai-search:focus-within .kai-suggest,.kai-search:hover .kai-suggest{opacity:1;visibility:visible;transform:translateY(0)}
.kai-suggest-title{font-size:11px;letter-spacing:.1em;color:var(--kai-muted);padding:8px 10px 4px}
.kai-suggest a{display:block;padding:8px 10px;border-radius:8px;font-size:13.5px;color:var(--kai-text)}
.kai-suggest a:hover{background:var(--kai-primary-soft);color:var(--kai-primary)}
.kai-icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--kai-line);background:#fff;color:var(--kai-text);font-size:15px;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.kai-icon-btn:hover{color:var(--kai-primary);border-color:rgba(14,107,92,.35);background:var(--kai-primary-soft)}
.kai-burger{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--kai-line);background:#fff;color:var(--kai-ink);font-size:16px;
  transition:background .2s ease,color .2s ease;
}
.kai-burger:hover{background:var(--kai-primary-soft);color:var(--kai-primary)}

.btn-kai-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border:0;border-radius:999px;
  background:var(--kai-accent);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-kai-primary:hover{background:#EE9A3E;color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(224,138,43,.8)}
.btn-kai-primary:active{transform:translateY(0);box-shadow:none}
.kai-nav-cta{padding:9px 20px;font-size:13.5px}
.btn-kai-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:999px;
  border:1px solid var(--kai-primary);background:transparent;
  color:var(--kai-primary);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-kai-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-deep);transform:translateY(-1px)}
.btn-kai-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;border:1px solid rgba(255,255,255,.42);
  background:transparent;color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.btn-kai-light:hover{background:#fff;color:var(--kai-primary-deep)}
.kai-textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--kai-primary)}
.kai-textlink i{font-size:12px;transition:transform .2s ease}
.kai-textlink:hover i{transform:translateX(3px)}

/* ============ 抽屉导航 ============ */
.kai-drawer{width:320px}
.kai-drawer .offcanvas-header{border-bottom:1px solid var(--kai-line);padding:16px 20px}
.kai-drawer .offcanvas-title{font-size:16px;font-weight:700;color:var(--kai-ink)}
.kai-drawer .offcanvas-body{padding:18px 20px 32px}
.kai-drawer .kai-search{width:100%;margin-bottom:16px}
.kai-drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.kai-drawer-nav a{padding:11px 12px;border-radius:10px;font-size:15px;color:var(--kai-text)}
.kai-drawer-nav a:hover,.kai-drawer-nav a.active{background:var(--kai-primary-soft);color:var(--kai-primary);font-weight:600}
.kai-drawer .btn-kai-primary{width:100%}

/* ============ 面包屑 ============ */
.kai-crumb{padding:22px 0 0;font-size:14px;color:var(--kai-muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.kai-crumb a{color:var(--kai-muted)}
.kai-crumb a:hover{color:var(--kai-primary)}
.kai-crumb .sep{color:#C3CAC5;margin:0 4px}
.kai-crumb .cur{color:var(--kai-primary);font-weight:600}

/* ============ 文章布局 ============ */
.kai-article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:48px;
  align-items:start;padding-top:26px;padding-bottom:24px;
}
.kai-article-head{padding-bottom:24px;border-bottom:1px solid var(--kai-line);margin-bottom:28px}
.kai-article-head h1{font-size:34px;line-height:1.35;letter-spacing:.01em;margin-bottom:18px}
.kai-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:var(--kai-muted)}
.kai-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CAC5;display:inline-block}
.kai-badge{
  display:inline-block;padding:4px 10px;border-radius:var(--kai-r-s);
  background:var(--kai-primary-soft);color:var(--kai-primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.kai-badge-accent{background:var(--kai-accent-soft);color:#A9611A}

.kai-toc-mobile{display:none;margin-bottom:22px;border:1px solid var(--kai-line);border-radius:var(--kai-r-m);background:#fff;overflow:hidden}
.kai-toc-mobile summary{
  list-style:none;cursor:pointer;padding:14px 18px;
  font-size:14px;font-weight:600;color:var(--kai-ink);
  display:flex;align-items:center;justify-content:space-between;
}
.kai-toc-mobile summary::-webkit-details-marker{display:none}
.kai-toc-mobile summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--kai-muted);transition:transform .2s ease}
.kai-toc-mobile[open] summary::after{transform:rotate(180deg)}
.kai-toc-mobile-list{padding:0 18px 14px;border-top:1px solid var(--kai-line)}
.kai-toc-mobile-list a{display:block;padding:9px 0;font-size:14px;color:var(--kai-text)}
.kai-toc-mobile-list a.lv3{padding-left:16px;font-size:13px;color:var(--kai-muted)}
.kai-toc-mobile-list a:hover{color:var(--kai-primary)}

.kai-toc{
  position:sticky;top:88px;
  padding:20px;background:#fff;border:1px solid var(--kai-line);
  border-radius:var(--kai-r-m);box-shadow:var(--kai-sh-1);
}
.kai-toc-title{
  font-size:12px;letter-spacing:.14em;color:var(--kai-muted);
  font-weight:600;margin-bottom:12px;
}
.kai-toc nav a{
  display:block;padding:7px 0 7px 12px;
  border-left:2px solid var(--kai-line);
  font-size:14px;line-height:1.5;color:var(--kai-text);
  transition:color .2s ease,border-color .2s ease;
}
.kai-toc nav a.lv3{padding-left:24px;font-size:13px;color:var(--kai-muted)}
.kai-toc nav a:hover{color:var(--kai-primary);border-left-color:var(--kai-accent)}
.kai-toc nav a.cur{color:var(--kai-primary);font-weight:600;border-left-color:var(--kai-primary)}

/* ============ 正文排版 ============ */
.kai-article-body{font-size:17px;line-height:1.9;color:var(--kai-text)}
.kai-article-body>*:first-child{margin-top:0}
.kai-article-body p{margin:0 0 1.2em}
.kai-article-body h2{
  font-size:26px;line-height:1.4;margin:46px 0 16px;
  padding-left:14px;border-left:4px solid var(--kai-primary);border-radius:2px;
}
.kai-article-body h3{font-size:21px;line-height:1.45;margin:34px 0 12px}
.kai-article-body h4{font-size:18px;line-height:1.5;margin:26px 0 10px}
.kai-article-body ul,.kai-article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.kai-article-body ul{list-style:disc}
.kai-article-body ol{list-style:decimal}
.kai-article-body li{margin-bottom:.5em}
.kai-article-body li::marker{color:var(--kai-primary)}
.kai-article-body blockquote{
  margin:26px 0;padding:16px 22px;
  background:var(--kai-primary-soft);color:var(--kai-primary-deep);
  border-left:3px solid var(--kai-primary);border-radius:0 12px 12px 0;
}
.kai-article-body blockquote p:last-child{margin-bottom:0}
.kai-article-body img{border-radius:var(--kai-r-m);margin:26px 0;width:100%;height:auto}
.kai-article-body figure{margin:26px 0}
.kai-article-body figure img{margin:0}
.kai-article-body figcaption{font-size:13px;color:var(--kai-muted);text-align:center;margin-top:10px}
.kai-article-body a{color:var(--kai-primary);border-bottom:1px solid rgba(14,107,92,.32)}
.kai-article-body a:hover{color:var(--kai-accent);border-bottom-color:var(--kai-accent)}
.kai-article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.kai-article-body th,.kai-article-body td{border:1px solid var(--kai-line);padding:11px 14px;text-align:left;vertical-align:top}
.kai-article-body th{background:var(--kai-primary-soft);color:var(--kai-primary-deep);font-weight:600}
.kai-article-body tr:nth-child(even) td{background:#FBFBF9}
.kai-article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:#F1F3F1;color:var(--kai-primary-deep);
  padding:2px 6px;border-radius:6px;
}
.kai-article-body pre{
  margin:26px 0;padding:20px;border-radius:var(--kai-r-m);
  background:#0E1D1A;color:#DCEAE6;overflow-x:auto;
  font-size:14px;line-height:1.7;
}
.kai-article-body pre code{background:none;color:inherit;padding:0;font-size:inherit}
.kai-article-body hr{border:0;border-top:1px solid var(--kai-line);margin:34px 0}

.kai-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:180px;padding:36px 24px;text-align:center;
  border:1px dashed var(--kai-line);border-radius:var(--kai-r-m);background:#fff;
  color:var(--kai-muted);font-size:15px;
}

/* ============ 标签 ============ */
.kai-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--kai-line)}
.kai-tags .label{font-size:13px;color:var(--kai-muted);margin-right:2px}
.kai-tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  border:1px solid var(--kai-line);background:#fff;
  font-size:13px;color:var(--kai-text);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.kai-tag:hover{border-color:rgba(14,107,92,.4);color:var(--kai-primary);background:var(--kai-primary-soft)}

/* ============ 上一篇 / 下一篇 ============ */
.kai-postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.kai-postnav-card{
  display:flex;flex-direction:column;gap:8px;
  padding:22px;background:#fff;border:1px solid var(--kai-line);
  border-radius:var(--kai-r-m);box-shadow:var(--kai-sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.kai-postnav-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--kai-sh-2)}
.kai-postnav-card .dir{font-size:12px;letter-spacing:.1em;color:var(--kai-muted)}
.kai-postnav-card strong{font-size:16px;color:var(--kai-ink);font-weight:600;line-height:1.5}
.kai-postnav-card span.desc{font-size:13.5px;color:var(--kai-muted);line-height:1.7}
.kai-postnav-card.next{text-align:right;align-items:flex-end}

/* ============ 卡片 ============ */
.kai-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-r-m);box-shadow:var(--kai-sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.kai-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--kai-sh-2)}
.kai-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--kai-primary-soft);flex-shrink:0}
.kai-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.kai-card:hover .kai-card-media img{transform:scale(1.03)}
.kai-card-media .kai-badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94)}
.kai-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.kai-card-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--kai-ink);
  margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.kai-card-excerpt{
  font-size:14px;line-height:1.75;color:var(--kai-muted);margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ============ 板块 ============ */
.kai-section{padding:88px 0}
.kai-section-tight{padding:56px 0 72px}
.kai-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.kai-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--kai-primary);
  font-weight:600;margin-bottom:12px;
}
.kai-section-head h2{font-size:32px;line-height:1.3}
.kai-section-sub{margin-top:12px;font-size:16px;color:var(--kai-muted);max-width:640px}

.kai-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}

/* ============ 底部 CTA ============ */
.kai-cta{
  position:relative;overflow:hidden;
  padding:52px 56px;border-radius:var(--kai-r-l);
  background:var(--kai-primary-deep);color:#fff;
  display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;
}
.kai-cta::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,#0E6B5C 0%,#2E9C87 55%,#8ACBB7 100%);
  opacity:.28;pointer-events:none;
}
.kai-cta>*{position:relative;z-index:1}
.kai-cta h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:14px}
.kai-cta p{color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.8}
.kai-cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.kai-cta-panel{
  padding:26px;border-radius:var(--kai-r-m);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
}
.kai-cta-panel dl{margin:0;display:grid;gap:16px}
.kai-cta-panel dt{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.6);margin-bottom:4px}
.kai-cta-panel dd{margin:0;font-size:15px;font-weight:600;color:#fff;font-variant-numeric:tabular-nums}

/* ============ 页脚 ============ */
.kai-footer{margin-top:96px;background:var(--kai-primary-deep);color:#C6DAD5;padding:64px 0 28px}
.kai-footer::before{
  content:"";display:block;width:120px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--kai-primary) 0%,var(--kai-accent) 100%);
  margin:-64px auto 60px;
}
.kai-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.kai-footer .kai-logo{color:#fff}
.kai-footer .kai-logo-mark{color:#8ACBB7}
.kai-footer .kai-logo-text{color:#fff}
.kai-footer .kai-logo-text em{color:rgba(255,255,255,.55)}
.kai-footer p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:330px}
.kai-footer h4{font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.62);margin-bottom:16px;font-weight:600}
.kai-footer ul li{margin-bottom:10px}
.kai-footer ul a{font-size:14px;color:#C6DAD5;display:inline-block;transition:color .2s ease,transform .2s ease}
.kai-footer ul a:hover{color:var(--kai-accent);transform:translateX(2px)}
.kai-footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .kai-search{width:200px}
  .kai-nav-link{padding:9px 9px;font-size:13.5px}
}
@media (max-width:991.98px){
  .kai-menu{display:none}
  .kai-search{display:none}
  .kai-icon-btn{display:none}
  .kai-burger{display:inline-flex}
  .kai-nav{height:56px;gap:12px}
  .kai-article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:20px}
  .kai-toc{display:none}
  .kai-toc-mobile{display:block}
  .kai-article-head h1{font-size:28px}
  .kai-section{padding:64px 0}
  .kai-section-head h2{font-size:26px}
  .kai-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kai-cta{grid-template-columns:1fr;padding:40px 32px;gap:28px}
  .kai-cta h2{font-size:25px}
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .kai-footer::before{margin:-64px auto 52px}
  .kai-footer{margin-top:72px;padding-top:56px}
}
@media (max-width:767.98px){
  .kai-article-head h1{font-size:25px}
  .kai-article-body{font-size:16px;line-height:1.85}
  .kai-article-body h2{font-size:22px;margin-top:36px}
  .kai-article-body h3{font-size:19px}
  .kai-postnav{grid-template-columns:1fr}
  .kai-postnav-card.next{text-align:left;align-items:flex-start}
  .kai-grid-3{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:575.98px){
  .kai-container{padding:0 16px}
  .kai-logo-text{font-size:17px}
  .kai-logo-text em{display:none}
  .kai-nav-cta{display:none}
  .kai-section{padding:52px 0}
  .kai-section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .kai-section-head h2{font-size:23px}
  .kai-cta{padding:32px 20px;border-radius:18px}
  .kai-cta h2{font-size:22px}
  .kai-footer-grid{grid-template-columns:1fr;gap:28px}
  .kai-crumb{font-size:13px}
}

/* roulang page: category1 */
:root{
  --kai-primary:#0E6B5C;
  --kai-primary-deep:#0A4B41;
  --kai-primary-soft:#E4F0EC;
  --kai-accent:#E08A2B;
  --kai-accent-soft:#FBF0E1;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-line:#E4E6E1;
  --kai-title:#14201E;
  --kai-body:#3C4A47;
  --kai-muted:#7C8B88;
  --kai-radius-s:8px;
  --kai-radius-m:14px;
  --kai-radius-l:22px;
  --kai-shadow-1:0 1px 2px rgba(20,32,30,.05);
  --kai-shadow-2:0 16px 36px -18px rgba(14,107,92,.28);
  --kai-font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--kai-font);
  font-size:16px;
  line-height:1.75;
  color:var(--kai-body);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--kai-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--kai-accent)}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--kai-title);font-weight:700;line-height:1.3}
p{margin:0}
button,input,textarea{font-family:inherit}
[id]{scroll-margin-top:92px}

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

/* ============ 导航 ============ */
.kai-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--kai-line);
  transition:background .22s ease,box-shadow .22s ease,backdrop-filter .22s ease;
}
.kai-header.is-scrolled{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 8px 26px -20px rgba(20,32,30,.45);
}
.kai-nav{display:flex;align-items:center;gap:18px;height:64px}
.kai-logo{display:inline-flex;align-items:center;gap:9px;color:var(--kai-primary);font-weight:700;font-size:17px;letter-spacing:.01em;flex:none}
.kai-logo:hover{color:var(--kai-primary-deep)}
.kai-logo-mark{width:28px;height:28px;flex:none}
.kai-logo-text em{font-style:normal;font-weight:500;font-size:13px;color:var(--kai-muted)}
.kai-dot{color:var(--kai-accent);margin:0 2px}
.kai-menu{display:flex;align-items:center;gap:2px;margin-left:10px}
.kai-nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:14px;font-weight:500;color:var(--kai-body);border-radius:var(--kai-radius-s);white-space:nowrap}
.kai-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--kai-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.kai-nav-link:hover{color:var(--kai-primary)}
.kai-nav-link:hover::after{transform:scaleX(1)}
.kai-nav-link.active{color:var(--kai-primary);font-weight:600}
.kai-nav-link.active::after{transform:scaleX(1)}
.kai-nav-link:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px}
.kai-nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}

.kai-search{
  position:relative;display:flex;align-items:center;gap:8px;height:38px;width:252px;
  padding:0 10px;background:#F2F1EC;border:1px solid var(--kai-line);border-radius:10px;
  transition:border-color .18s,box-shadow .18s,background .18s;
}
.kai-search:focus-within{background:#fff;border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(14,107,92,.14)}
.kai-search-icon{color:var(--kai-muted);font-size:13px}
.kai-search input{flex:1;min-width:0;border:0;background:transparent;font-size:13.5px;color:var(--kai-title);outline:none}
.kai-search input::placeholder{color:#9AA7A4}
.kai-kbd{font-size:11px;color:var(--kai-muted);border:1px solid var(--kai-line);border-radius:6px;padding:1px 6px;background:#fff;white-space:nowrap}
.kai-suggest{
  position:absolute;top:calc(100% + 10px);left:0;width:302px;background:#fff;
  border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);
  box-shadow:var(--kai-shadow-2);padding:10px;display:none;z-index:40;
}
.kai-search:focus-within .kai-suggest{display:block}
.kai-suggest-title{font-size:11px;letter-spacing:.08em;color:var(--kai-muted);padding:8px 10px 4px}
.kai-suggest a{display:block;padding:8px 10px;font-size:13.5px;color:var(--kai-body);border-radius:var(--kai-radius-s)}
.kai-suggest a:hover{background:var(--kai-primary-soft);color:var(--kai-primary)}

.kai-icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:10px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-body);
  transition:border-color .18s,color .18s,transform .18s;
}
.kai-icon-btn:hover{border-color:var(--kai-primary);color:var(--kai-primary);transform:translateY(-1px)}
.kai-icon-btn:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px}
.kai-burger{
  display:none;align-items:center;justify-content:center;width:40px;height:38px;
  border-radius:10px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-body);
}
.kai-burger:hover{border-color:var(--kai-primary);color:var(--kai-primary)}

/* 按钮 */
.btn-kai-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 26px;border:0;border-radius:999px;background:var(--kai-accent);color:#fff;
  font-weight:600;font-size:15px;cursor:pointer;
  box-shadow:0 10px 22px -14px rgba(224,138,43,.9);
  transition:transform .18s,box-shadow .18s,filter .18s,color .18s;
}
.btn-kai-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(224,138,43,.95);color:#fff}
.btn-kai-primary:active{transform:translateY(0)}
.btn-kai-primary:focus-visible{outline:2px solid var(--kai-primary);outline-offset:3px}
.kai-nav-cta{padding:9px 18px;font-size:14px}
.btn-kai-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:11px 24px;border:1px solid var(--kai-primary);border-radius:999px;
  color:var(--kai-primary);background:transparent;font-weight:600;font-size:15px;
  transition:background .18s,color .18s,transform .18s;
}
.btn-kai-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-deep);transform:translateY(-1px)}
.btn-kai-ghost:focus-visible{outline:2px solid var(--kai-primary);outline-offset:3px}
.kai-link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--kai-primary)}
.kai-link-arrow i{transition:transform .2s ease;font-size:12px}
.kai-link-arrow:hover i{transform:translateX(3px)}

/* 徽章 */
.kai-badge{
  display:inline-block;padding:4px 10px;border-radius:var(--kai-radius-s);
  background:var(--kai-primary-soft);color:var(--kai-primary-deep);
  font-size:12px;letter-spacing:.02em;white-space:nowrap;
}
.kai-badge--accent{background:var(--kai-accent-soft);color:#9A5A12}

/* ============ 内页 Hero ============ */
.kai-page-hero{
  position:relative;padding:56px 0 60px;
  background-image:linear-gradient(120deg,rgba(10,75,65,.95) 0%,rgba(14,107,92,.88) 52%,rgba(46,156,135,.76) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;color:#EAF4F1;overflow:hidden;
}
.kai-page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.14);pointer-events:none;
}
.kai-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(234,244,241,.72);margin-bottom:26px}
.kai-crumb a{color:rgba(234,244,241,.82)}
.kai-crumb a:hover{color:#F2C58A}
.kai-crumb .sep{opacity:.5}
.kai-crumb .cur{color:#F2C58A}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.08em;
  padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);color:#EAF4F1;margin-bottom:18px;
}
.kai-page-hero h1{font-size:46px;line-height:1.2;color:#fff;letter-spacing:.01em}
.kai-page-hero .kai-lead{max-width:620px;margin-top:16px;font-size:17px;line-height:1.85;color:rgba(234,244,241,.88)}
.kai-hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.kai-hero-badges .kai-badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#EAF4F1}
.kai-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

/* ============ 板块 ============ */
.kai-section{padding:96px 0}
.kai-section--surface{background:var(--kai-surface);border-top:1px solid var(--kai-line);border-bottom:1px solid var(--kai-line)}
.kai-section--tight{padding:72px 0}
.kai-label{
  display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--kai-primary);
  background:var(--kai-primary-soft);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.kai-h2{font-size:32px;line-height:1.3}
.kai-section-head{max-width:740px;margin-bottom:44px}
.kai-section-head p{margin-top:14px;font-size:16px;color:var(--kai-muted)}

/* ============ 目录长卡 ============ */
.kai-dir{display:flex;flex-direction:column;gap:18px}
.kai-dir-card{
  display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:stretch;
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);
  padding:20px;box-shadow:var(--kai-shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.kai-dir-card:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.32);box-shadow:var(--kai-shadow-2)}
.kai-dir-thumb{position:relative;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:var(--kai-primary-soft)}
.kai-dir-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.kai-dir-card:hover .kai-dir-thumb img{transform:scale(1.03)}
.kai-dir-no{
  position:absolute;left:10px;top:10px;background:rgba(10,75,65,.86);color:#fff;
  font-size:12px;letter-spacing:.06em;padding:3px 9px;border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.kai-dir-body{display:flex;flex-direction:column;justify-content:center;gap:10px}
.kai-dir-body h3{font-size:20px}
.kai-dir-body p{font-size:15px;color:var(--kai-body);line-height:1.8}
.kai-dir-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.kai-dir-foot{margin-top:2px}

/* ============ 侧栏 ============ */
.kai-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.kai-side-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);padding:22px;box-shadow:var(--kai-shadow-1)}
.kai-side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.kai-side-card h3 i{color:var(--kai-primary);font-size:14px}
.kai-anchor-list a{
  display:block;padding:8px 10px;font-size:14px;color:var(--kai-body);
  border-left:2px solid transparent;border-radius:0 var(--kai-radius-s) var(--kai-radius-s) 0;
  transition:background .18s,color .18s,border-color .18s;
}
.kai-anchor-list a:hover{background:var(--kai-primary-soft);color:var(--kai-primary);border-left-color:var(--kai-primary)}
.kai-relate-list li + li{margin-top:10px}
.kai-relate-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--kai-body);padding:9px 10px;border:1px solid var(--kai-line);border-radius:10px;transition:border-color .18s,color .18s,background .18s}
.kai-relate-list a:hover{border-color:rgba(14,107,92,.35);color:var(--kai-primary);background:var(--kai-primary-soft)}
.kai-relate-list i{font-size:11px;color:var(--kai-muted)}
.kai-side-cta{background:linear-gradient(155deg,#0E6B5C 0%,#0A4B41 100%);border:1px solid rgba(255,255,255,.1);color:#DCEBE7}
.kai-side-cta h3{color:#fff}
.kai-side-cta p{font-size:14px;line-height:1.8;color:rgba(234,244,241,.82);margin-bottom:16px}
.kai-side-cta .btn-kai-primary{width:100%;padding:11px 18px;font-size:14px}

/* ============ 适用场景 ============ */
.kai-scene{padding:26px 0 10px;border-top:2px solid var(--kai-primary);display:grid;grid-template-columns:62px 1fr;gap:14px;height:100%}
.kai-scene-num{font-size:26px;font-weight:700;color:var(--kai-primary);line-height:1.1;font-variant-numeric:tabular-nums}
.kai-scene h3{font-size:18px;margin-bottom:8px}
.kai-scene p{font-size:15px;color:var(--kai-body);line-height:1.8}

/* ============ 流程 ============ */
.kai-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.kai-flow-item{position:relative;background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);padding:24px 18px;box-shadow:var(--kai-shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.kai-flow-item:hover{transform:translateY(-2px);border-color:rgba(14,107,92,.3);box-shadow:var(--kai-shadow-2)}
.kai-flow-item::after{content:"";position:absolute;top:38px;right:-18px;width:18px;height:1px;background:var(--kai-line)}
.kai-flow-item:last-child::after{display:none}
.kai-flow-num{font-size:13px;font-weight:700;color:var(--kai-accent);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.kai-flow-item h3{font-size:16px;margin:10px 0 8px}
.kai-flow-item p{font-size:14px;color:var(--kai-muted);line-height:1.75}

/* ============ 数据色带 ============ */
.kai-band{
  background:radial-gradient(120% 150% at 0% 0%,#0A4B41 0%,#0E6B5C 58%,#12796A 100%);
  color:#EAF4F1;padding:84px 0;
}
.kai-band .kai-label{background:rgba(255,255,255,.14);color:#F2C58A}
.kai-band .kai-h2{color:#fff}
.kai-band .kai-section-head p{color:rgba(234,244,241,.75)}
.kai-stat{padding-right:16px;border-left:1px solid rgba(255,255,255,.18);padding-left:20px}
.kai-stat-num{font-size:42px;font-weight:700;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums}
.kai-stat-num span{font-size:16px;font-weight:600;color:#F2C58A;margin-left:5px;letter-spacing:.02em}
.kai-stat-note{font-size:13px;color:rgba(234,244,241,.72);margin-top:10px;line-height:1.7}
.kai-meter-wrap{margin-top:52px;padding-top:30px;border-top:1px solid rgba(255,255,255,.14)}
.kai-meter-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;font-size:14px;color:rgba(234,244,241,.85);margin-bottom:12px}
.kai-meter-head strong{font-size:20px;color:#F2C58A;font-variant-numeric:tabular-nums}
.kai-meter{height:6px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden}
.kai-meter i{display:block;height:100%;width:86%;border-radius:999px;background:linear-gradient(90deg,#E08A2B,#F2C58A)}

/* ============ FAQ ============ */
.kai-faq{border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);overflow:hidden;background:#fff;box-shadow:var(--kai-shadow-1)}
.kai-faq .accordion-item{background:#fff;border:0;border-top:1px solid var(--kai-line)}
.kai-faq .accordion-item:first-child{border-top:0}
.kai-faq .accordion-button{
  background:#fff;color:var(--kai-title);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;border-radius:0;
}
.kai-faq .accordion-button:not(.collapsed){color:var(--kai-primary);background:#fff;box-shadow:none}
.kai-faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.kai-faq .accordion-button:focus-visible{outline:2px solid var(--kai-primary);outline-offset:-2px}
.kai-faq .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:22px;font-weight:400;line-height:1;color:var(--kai-primary);
  display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform .22s ease;
}
.kai-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.kai-faq .accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--kai-body);background:#FBFBF8}

/* ============ CTA ============ */
.kai-cta-card{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-l);
  padding:48px;box-shadow:var(--kai-shadow-1);
}
.kai-cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.kai-cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--kai-body)}
.kai-cta-list i{color:var(--kai-primary);font-size:13px;margin-top:6px}
.kai-field{margin-bottom:16px}
.kai-field label{display:block;font-size:14px;color:var(--kai-body);margin-bottom:6px}
.kai-input{
  width:100%;height:44px;border:1px solid var(--kai-line);border-radius:10px;
  padding:12px 14px;font-size:14px;color:var(--kai-title);background:#fff;outline:none;
  transition:border-color .18s,box-shadow .18s;
}
.kai-input::placeholder{color:#A6B1AE}
.kai-input:focus{border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(14,107,92,.14)}
textarea.kai-input{height:auto;min-height:104px;line-height:1.7;resize:vertical}
.kai-form-note{font-size:13px;color:var(--kai-muted);margin-top:12px;line-height:1.7}

/* ============ 页脚 ============ */
.kai-footer{
  position:relative;background:var(--kai-primary-deep);color:#C9DCD7;padding:64px 0 28px;margin-top:0;
}
.kai-footer::before{
  content:"";position:absolute;top:0;left:24px;width:120px;height:2px;
  background:linear-gradient(90deg,#0E6B5C,#E08A2B);
}
.kai-footer .kai-logo{color:#fff}
.kai-footer .kai-logo:hover{color:#fff}
.kai-footer .kai-logo-text em{color:#8FB6AE}
.kai-footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:40px}
.kai-footer h4{font-size:13px;letter-spacing:.1em;color:#8FB6AE;margin-bottom:16px;font-weight:600}
.kai-footer ul li{margin-bottom:10px}
.kai-footer a{color:#C9DCD7;font-size:14px;display:inline-block;transition:color .18s,transform .18s}
.kai-footer a:hover{color:var(--kai-accent);transform:translateX(2px)}
.kai-footer p{font-size:14px;color:#A9C6C0;margin-top:16px;line-height:1.85;max-width:340px}
.kai-footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#8FB6AE;
}

/* ============ 移动抽屉 ============ */
.kai-drawer{background:#fff;width:min(340px,88vw);border-left:1px solid var(--kai-line)}
.kai-drawer .offcanvas-header{border-bottom:1px solid var(--kai-line);padding:16px 20px}
.kai-drawer .offcanvas-body{padding:20px}
.kai-drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;background:#F2F1EC;border:1px solid var(--kai-line);border-radius:10px;margin-bottom:18px}
.kai-drawer-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;color:var(--kai-title)}
.kai-drawer-link{display:block;padding:12px;font-size:15px;color:var(--kai-body);border-radius:10px;font-weight:500}
.kai-drawer-link:hover{background:var(--kai-primary-soft);color:var(--kai-primary)}
.kai-drawer-link.active{background:var(--kai-primary-soft);color:var(--kai-primary);font-weight:600}
.kai-drawer .btn-kai-primary{width:100%;margin-top:18px}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .kai-dir-card{grid-template-columns:186px 1fr;gap:20px}
  .kai-stat-num{font-size:36px}
}
@media (max-width:991.98px){
  .kai-menu{display:none}
  .kai-burger{display:inline-flex}
  .kai-icon-btn{display:none}
  .kai-search{width:196px}
  .kai-side{position:static;margin-top:36px}
  .kai-flow{grid-template-columns:repeat(2,1fr)}
  .kai-flow-item::after{display:none}
  .kai-page-hero h1{font-size:38px}
  .kai-h2{font-size:28px}
  .kai-section{padding:76px 0}
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .kai-cta-card{padding:36px}
}
@media (max-width:767.98px){
  .kai-search{display:none}
  .kai-nav-cta{display:none}
  .kai-page-hero{padding:40px 0 46px}
  .kai-page-hero h1{font-size:30px}
  .kai-page-hero .kai-lead{font-size:16px}
  .kai-h2{font-size:24px}
  .kai-section{padding:56px 0}
  .kai-dir-card{grid-template-columns:1fr}
  .kai-dir-thumb{aspect-ratio:16/9}
  .kai-stat{ border-left:0;border-top:1px solid rgba(255,255,255,.18);padding:20px 0 0;margin-top:20px}
  .kai-stat-num{font-size:32px}
  .kai-cta-card{padding:26px}
  .kai-footer{padding:48px 0 24px}
}
@media (max-width:575.98px){
  .kai-container{padding:0 16px}
  .kai-flow{grid-template-columns:1fr}
  .kai-footer-grid{grid-template-columns:1fr;gap:28px}
  .kai-scene{grid-template-columns:48px 1fr}
  .kai-footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --kai-primary:#0E6B5C;
  --kai-primary-deep:#0A4B41;
  --kai-primary-soft:#E4F0EC;
  --kai-accent:#E08A2B;
  --kai-accent-soft:#FBF0E1;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-line:#E4E6E1;
  --kai-title:#14201E;
  --kai-body:#3C4A47;
  --kai-muted:#7C8B88;
  --kai-radius-s:8px;
  --kai-radius-m:14px;
  --kai-radius-l:22px;
  --kai-shadow-1:0 1px 2px rgba(20,32,30,.05);
  --kai-shadow-2:0 16px 36px -18px rgba(14,107,92,.28);
  --kai-grad:linear-gradient(135deg,#0E6B5C 0%,#2E9C87 55%,#8ACBB7 100%);
  --kai-font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--kai-font);
  font-size:16px;
  line-height:1.75;
  color:var(--kai-body);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--kai-title);font-weight:700;letter-spacing:0;}
h1{font-size:46px;line-height:1.2;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:22px;line-height:1.4;}
h4{font-size:18px;line-height:1.5;}
p{margin:0;line-height:1.75;}
img{max-width:100%;display:block;}
a{color:var(--kai-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--kai-accent);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px;border-radius:6px;}

.kai-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.kai-container{max-width:1280px;}}

/* ============ 导航 ============ */
.kai-header{
  position:sticky;top:0;z-index:1040;
  background:var(--kai-surface);
  border-bottom:1px solid var(--kai-line);
  transition:background .25s ease,box-shadow .25s ease;
}
.kai-header.is-scrolled{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(20,32,30,.06);
}
.kai-nav{display:flex;align-items:center;gap:24px;height:64px;}
.kai-logo{display:inline-flex;align-items:center;gap:8px;color:var(--kai-title);font-weight:700;font-size:17px;white-space:nowrap;}
.kai-logo:hover{color:var(--kai-primary);}
.kai-logo-mark{width:28px;height:28px;color:var(--kai-primary);flex:0 0 auto;}
.kai-logo-text{display:inline-flex;align-items:baseline;}
.kai-logo-text em{font-style:normal;font-weight:500;font-size:13px;color:var(--kai-muted);}
.kai-dot{color:var(--kai-accent);margin:0 2px;}

.kai-menu{display:flex;align-items:center;gap:2px;margin-left:8px;}
.kai-nav-link{
  position:relative;padding:8px 12px;font-size:14px;font-weight:500;
  color:var(--kai-body);border-radius:var(--kai-radius-s);white-space:nowrap;
}
.kai-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--kai-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.kai-nav-link:hover{color:var(--kai-primary);}
.kai-nav-link:hover::after,.kai-nav-link.active::after{transform:scaleX(1);}
.kai-nav-link.active{color:var(--kai-primary);font-weight:600;}

.kai-nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.kai-search{
  position:relative;display:flex;align-items:center;gap:8px;
  height:38px;width:270px;padding:0 10px;
  background:var(--kai-bg);border:1px solid var(--kai-line);border-radius:10px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.kai-search:focus-within{border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(14,107,92,.12);background:#fff;}
.kai-search-icon{color:var(--kai-muted);font-size:13px;}
.kai-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--kai-title);font-family:inherit;
}
.kai-search input::placeholder{color:var(--kai-muted);}
.kai-kbd{
  font-size:11px;color:var(--kai-muted);background:#fff;
  border:1px solid var(--kai-line);border-radius:5px;padding:1px 6px;white-space:nowrap;
}
.kai-suggest{
  position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:1060;
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);
  box-shadow:var(--kai-shadow-2);padding:10px;display:none;
}
.kai-search:focus-within .kai-suggest{display:block;}
.kai-suggest a{display:block;padding:7px 10px;border-radius:var(--kai-radius-s);font-size:13.5px;color:var(--kai-body);}
.kai-suggest a:hover{background:var(--kai-primary-soft);color:var(--kai-primary);}
.kai-suggest-title{font-size:11px;letter-spacing:.08em;color:var(--kai-muted);padding:8px 10px 2px;}

.kai-icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;border:1px solid var(--kai-line);
  background:#fff;color:var(--kai-body);font-size:15px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.kai-icon-btn:hover{border-color:var(--kai-primary);color:var(--kai-primary);background:var(--kai-primary-soft);}

.btn-kai-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--kai-accent);color:#fff;border:0;border-radius:999px;
  padding:12px 26px;font-size:14.5px;font-weight:600;cursor:pointer;
  box-shadow:0 10px 22px -14px rgba(224,138,43,.9);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,color .18s ease;
}
.btn-kai-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff;box-shadow:0 16px 30px -16px rgba(224,138,43,.95);}
.btn-kai-primary:active{transform:translateY(0);filter:brightness(.98);}
.kai-nav-cta{padding:9px 20px;font-size:14px;}

.btn-kai-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--kai-primary);border:1px solid var(--kai-primary);
  border-radius:999px;padding:11px 24px;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .18s ease;
}
.btn-kai-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary);transform:translateY(-1px);}

.btn-kai-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--kai-primary);
}
.btn-kai-link i{transition:transform .2s ease;}
.btn-kai-link:hover{color:var(--kai-accent);}
.btn-kai-link:hover i{transform:translateX(3px);}

.kai-burger{
  display:none;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--kai-line);background:#fff;color:var(--kai-body);font-size:16px;
}
.kai-burger:hover{border-color:var(--kai-primary);color:var(--kai-primary);}

/* 移动抽屉 */
.kai-drawer{width:min(360px,86vw);}
.kai-drawer .offcanvas-header{border-bottom:1px solid var(--kai-line);padding:18px 20px;}
.kai-drawer .offcanvas-title{font-size:16px;font-weight:700;}
.kai-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:18px;}
.kai-drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  background:var(--kai-bg);border:1px solid var(--kai-line);border-radius:10px;
}
.kai-drawer-search i{color:var(--kai-muted);font-size:13px;}
.kai-drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;font-family:inherit;color:var(--kai-title);}
.kai-drawer-nav{display:flex;flex-direction:column;gap:4px;}
.kai-drawer-link{
  display:block;padding:12px 14px;border-radius:var(--kai-radius-s);
  font-size:15px;font-weight:500;color:var(--kai-body);background:transparent;
}
.kai-drawer-link:hover,.kai-drawer-link.active{background:var(--kai-primary-soft);color:var(--kai-primary);}

/* ============ 面包屑 ============ */
.kai-crumb-wrap{background:var(--kai-surface);border-bottom:1px solid var(--kai-line);}
.kai-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--kai-muted);padding:16px 0;
}
.kai-crumb a{color:var(--kai-muted);}
.kai-crumb a:hover{color:var(--kai-accent);}
.kai-crumb .sep{color:#C6CFCB;}
.kai-crumb .current{color:var(--kai-primary);font-weight:600;}

/* ============ Hero ============ */
.kai-hero{
  position:relative;overflow:hidden;
  padding:64px 0 88px;background:var(--kai-bg);
}
.kai-hero-deco{
  position:absolute;right:-60px;top:-40px;width:520px;height:520px;
  color:var(--kai-primary);opacity:.12;pointer-events:none;z-index:0;
}
.kai-hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.kai-hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--kai-primary-soft);color:var(--kai-primary);
  border-radius:var(--kai-radius-s);padding:5px 12px;
  font-size:12px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;
}
.kai-hero h1{font-size:46px;line-height:1.2;margin-bottom:16px;}
.kai-hero-sub{font-size:17px;color:var(--kai-body);max-width:26em;margin-bottom:14px;}
.kai-hero-desc{font-size:15px;color:var(--kai-muted);max-width:34em;margin-bottom:28px;}
.kai-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.kai-chips{display:flex;flex-wrap:wrap;gap:10px;}
.kai-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--kai-primary-soft);color:var(--kai-primary-deep);
  border-radius:var(--kai-radius-s);padding:5px 11px;
  font-size:12px;font-weight:600;
}
.kai-chip i{font-size:11px;color:var(--kai-accent);}

.kai-hero-visual{
  position:relative;border-radius:var(--kai-radius-l);overflow:hidden;
  border:1px solid var(--kai-line);aspect-ratio:16/10;background:var(--kai-primary-soft);
  box-shadow:var(--kai-shadow-1);
}
.kai-hero-visual img{width:100%;height:100%;object-fit:cover;}
.kai-hero-visual::after{
  content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.26;
}
.kai-float-card{
  position:absolute;right:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.95);border-radius:var(--kai-radius-m);
  padding:14px 18px;box-shadow:var(--kai-shadow-2);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.kai-float-card b{
  display:block;font-size:24px;line-height:1.1;color:var(--kai-primary-deep);
  font-variant-numeric:tabular-nums;
}
.kai-float-card b small{font-size:14px;font-weight:600;margin-left:4px;}
.kai-float-card span{display:block;font-size:12px;color:var(--kai-muted);margin-top:4px;}

/* ============ 板块骨架 ============ */
.kai-section{padding:96px 0;}
.kai-section--alt{background:var(--kai-surface);}
.kai-section-head{max-width:740px;margin-bottom:48px;}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--kai-primary);background:var(--kai-primary-soft);
  border-radius:var(--kai-radius-s);padding:5px 10px;margin-bottom:14px;
}
.kai-section-head h2{margin-bottom:14px;}
.kai-section-head p{font-size:16px;color:var(--kai-muted);}
.kai-section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ============ 数据色带 ============ */
.kai-band{
  position:relative;overflow:hidden;
  background:var(--kai-primary-deep);color:#EAF4F1;
  padding:80px 0;
}
.kai-band::before{
  content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.18;
}
.kai-band .kai-container{position:relative;z-index:1;}
.kai-band-head{margin-bottom:44px;max-width:680px;}
.kai-band-head .kai-eyebrow{background:rgba(255,255,255,.14);color:#D6EFE8;}
.kai-band-head h2{color:#fff;margin-bottom:12px;}
.kai-band-head p{color:#A8CFC5;font-size:15px;}
.kai-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.kai-metric{
  padding:22px 20px;border-radius:var(--kai-radius-m);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
}
.kai-metric-value{
  font-size:40px;font-weight:700;color:#fff;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.kai-metric-value small{font-size:15px;font-weight:600;color:#B8E0D5;margin-left:6px;}
.kai-metric-note{font-size:13px;color:#9EC6BC;margin-top:10px;}
.kai-band-bar{
  margin-top:40px;height:6px;border-radius:999px;
  background:rgba(255,255,255,.16);overflow:hidden;
}
.kai-band-bar i{
  display:block;height:100%;width:78%;border-radius:999px;
  background:linear-gradient(90deg,#8ACBB7,#E08A2B);
}
.kai-band-bar-note{margin-top:12px;font-size:13px;color:#9EC6BC;}

/* ============ 案例集（错落栅格） ============ */
.kai-cases{
  display:grid;grid-template-columns:repeat(2,1fr);gap:32px;
}
.kai-case{
  display:flex;flex-direction:column;
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-radius-m);overflow:hidden;box-shadow:var(--kai-shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.kai-case:nth-child(even){margin-top:48px;}
.kai-case:hover{
  transform:translateY(-2px);
  border-color:rgba(14,107,92,.3);
  box-shadow:var(--kai-shadow-2);
}
.kai-case-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--kai-primary-soft);}
.kai-case-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.kai-case:hover .kai-case-media img{transform:scale(1.03);}
.kai-case-num{
  position:absolute;left:18px;top:12px;z-index:2;
  font-size:56px;font-weight:700;line-height:1;
  color:rgba(255,255,255,.86);
  text-shadow:0 2px 14px rgba(10,75,65,.45);
  font-variant-numeric:tabular-nums;
}
.kai-case-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.kai-case-body h3{font-size:20px;}
.kai-case-body p{font-size:15px;color:var(--kai-muted);}
.kai-case-foot{margin-top:auto;padding-top:6px;}
.kai-tag{
  display:inline-flex;align-items:center;
  background:var(--kai-accent-soft);color:#A8631A;
  border-radius:6px;padding:4px 10px;font-size:12px;font-weight:600;
  width:fit-content;
}

/* 分页控件 */
.kai-pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:64px;}
.kai-page{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 12px;
  border:1px solid var(--kai-line);border-radius:var(--kai-radius-s);
  background:#fff;color:var(--kai-body);font-size:14px;font-weight:600;
  font-variant-numeric:tabular-nums;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.kai-page:hover{border-color:var(--kai-primary);color:var(--kai-primary);transform:translateY(-1px);}
.kai-page.is-active{background:var(--kai-primary);border-color:var(--kai-primary);color:#fff;}
.kai-page.is-active:hover{color:#fff;}
.kai-case-footnote{text-align:center;margin-top:20px;font-size:13px;color:var(--kai-muted);}

/* ============ 实施节奏 ============ */
.kai-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.kai-step{
  position:relative;background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-radius-m);padding:26px 24px;box-shadow:var(--kai-shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.kai-step:hover{transform:translateY(-2px);box-shadow:var(--kai-shadow-2);border-color:rgba(14,107,92,.3);}
.kai-step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:16px;
  background:var(--kai-primary-soft);color:var(--kai-primary);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.kai-step h3{font-size:17px;margin-bottom:8px;}
.kai-step p{font-size:14px;color:var(--kai-muted);}

/* ============ 图文区块（zigzag） ============ */
.kai-zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.kai-zig + .kai-zig{margin-top:72px;}
.kai-zig.reverse .kai-zig-media{order:2;}
.kai-zig-media{
  position:relative;border-radius:var(--kai-radius-l);overflow:hidden;
  border:1px solid var(--kai-line);aspect-ratio:16/10;background:var(--kai-primary-soft);
}
.kai-zig-media img{width:100%;height:100%;object-fit:cover;}
.kai-zig-body h3{font-size:24px;margin-bottom:12px;}
.kai-zig-body > p{font-size:15.5px;color:var(--kai-muted);margin-bottom:18px;}
.kai-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.kai-list li{display:flex;gap:10px;font-size:15px;color:var(--kai-body);}
.kai-list li i{color:var(--kai-accent);font-size:13px;margin-top:6px;flex:0 0 auto;}

/* ============ FAQ ============ */
.kai-faq{background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-radius-m);overflow:hidden;box-shadow:var(--kai-shadow-1);}
.kai-faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--kai-line);}
.kai-faq .accordion-item:last-child{border-bottom:0;}
.kai-faq .accordion-button{
  position:relative;width:100%;background:transparent;border:0;box-shadow:none;
  color:var(--kai-title);font-size:16px;font-weight:600;
  padding:22px 56px 22px 24px;font-family:inherit;text-align:left;
  transition:background .2s ease,color .2s ease;
}
.kai-faq .accordion-button:hover{background:var(--kai-accent-soft);}
.kai-faq .accordion-button:not(.collapsed){color:var(--kai-primary);background:var(--kai-accent-soft);}
.kai-faq .accordion-button:focus{box-shadow:none;outline:none;}
.kai-faq .accordion-button::after{
  content:"";position:absolute;right:22px;top:50%;
  width:16px;height:16px;transform:translateY(-50%);
  background-image:
    linear-gradient(var(--kai-primary),var(--kai-primary)),
    linear-gradient(var(--kai-primary),var(--kai-primary));
  background-position:center,center;
  background-size:16px 2px,2px 16px;
  background-repeat:no-repeat;
  border-radius:0;margin:0;
  transition:transform .25s ease;
}
.kai-faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.kai-faq .accordion-body{padding:0 24px 24px;font-size:15px;line-height:1.8;color:var(--kai-body);}

/* ============ CTA + 表单 ============ */
.kai-cta{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-radius-l);padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  box-shadow:var(--kai-shadow-1);
}
.kai-cta-body h2{font-size:30px;margin-bottom:14px;}
.kai-cta-body p{font-size:15.5px;color:var(--kai-muted);margin-bottom:22px;}
.kai-cta-points{display:flex;flex-direction:column;gap:12px;}
.kai-cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--kai-body);}
.kai-cta-points li i{color:var(--kai-primary);font-size:13px;margin-top:6px;flex:0 0 auto;}
.kai-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.kai-field{display:flex;flex-direction:column;}
.kai-field--full{grid-column:1 / -1;}
.kai-field label{font-size:14px;font-weight:500;color:var(--kai-title);margin-bottom:6px;}
.kai-input,.kai-select,.kai-textarea{
  width:100%;font-family:inherit;font-size:14.5px;color:var(--kai-title);
  background:#fff;border:1px solid var(--kai-line);border-radius:10px;
  padding:12px 14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.kai-input,.kai-select{height:44px;}
.kai-textarea{min-height:96px;resize:vertical;line-height:1.7;}
.kai-input:focus,.kai-select:focus,.kai-textarea:focus{
  border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(14,107,92,.12);
}
.kai-hint{font-size:12.5px;color:var(--kai-muted);margin-top:6px;}
.kai-form .btn-kai-primary{grid-column:1 / -1;width:100%;}

/* ============ 页脚 ============ */
.kai-footer{
  position:relative;margin-top:96px;padding:72px 0 32px;
  background:var(--kai-primary-deep);color:#CFE3DE;
}
.kai-footer::before{
  content:"";position:absolute;top:0;left:24px;width:120px;height:3px;
  background:linear-gradient(90deg,#8ACBB7,#E08A2B);border-radius:0 0 3px 3px;
}
.kai-footer .kai-logo-text{color:#fff;}
.kai-footer .kai-logo-text em{color:#9EC6BC;}
.kai-footer .kai-logo-mark{color:#8ACBB7;}
.kai-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.kai-footer h4{
  font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:16px;font-weight:600;
}
.kai-footer li{margin-bottom:10px;}
.kai-footer a{
  display:inline-block;font-size:14px;color:#CFE3DE;
  transition:color .2s ease,transform .2s ease;
}
.kai-footer a:hover{color:var(--kai-accent);transform:translateX(2px);}
.kai-footer p{font-size:14px;line-height:1.8;color:#9EC6BC;margin-top:16px;max-width:360px;}
.kai-footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#9EC6BC;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  h1,.kai-hero h1{font-size:40px;}
  .kai-search{width:220px;}
  .kai-metrics{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .kai-menu,.kai-search,.kai-icon-btn{display:none;}
  .kai-burger{display:inline-flex;}
  .kai-nav{height:56px;gap:12px;}
  .kai-hero{padding:48px 0 64px;}
  .kai-hero-grid{grid-template-columns:1fr;gap:40px;}
  .kai-hero h1{font-size:34px;}
  .kai-section{padding:64px 0;}
  .kai-section-head{margin-bottom:36px;}
  .kai-section-head--split{flex-direction:column;align-items:flex-start;}
  .kai-steps{grid-template-columns:repeat(2,1fr);}
  .kai-zig{grid-template-columns:1fr;gap:32px;}
  .kai-zig.reverse .kai-zig-media{order:0;}
  .kai-zig + .kai-zig{margin-top:56px;}
  .kai-cta{grid-template-columns:1fr;padding:36px 28px;gap:32px;}
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .kai-footer{margin-top:72px;}
}
@media (max-width:767.98px){
  h2,.kai-cta-body h2{font-size:24px;}
  h3{font-size:19px;}
  .kai-hero h1{font-size:30px;}
  .kai-hero-sub{font-size:16px;}
  .kai-cases{grid-template-columns:1fr;gap:24px;}
  .kai-case:nth-child(even){margin-top:0;}
  .kai-case-body{padding:20px;}
  .kai-case-num{font-size:44px;}
  .kai-metrics{grid-template-columns:1fr;gap:16px;}
  .kai-metric-value{font-size:34px;}
  .kai-form{grid-template-columns:1fr;}
  .kai-pager{margin-top:48px;}
}
@media (max-width:575.98px){
  .kai-container{padding:0 16px;}
  .kai-hero-visual{aspect-ratio:16/10;}
  .kai-steps{grid-template-columns:1fr;}
  .kai-footer-grid{grid-template-columns:1fr;}
  .kai-footer-bottom{flex-direction:column;gap:6px;}
  .kai-cta{padding:28px 20px;}
  .kai-float-card{right:12px;bottom:12px;padding:10px 14px;}
  .kai-float-card b{font-size:20px;}
  .kai-logo-text em{display:none;}
}

/* roulang page: category3 */
:root{
  --kai-primary:#0E6B5C;
  --kai-primary-deep:#0A4B41;
  --kai-primary-soft:#E4F0EC;
  --kai-accent:#E08A2B;
  --kai-accent-soft:#FBF0E1;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-line:#E4E6E1;
  --kai-ink:#14201E;
  --kai-body:#3C4A47;
  --kai-muted:#7C8B88;
  --kai-r-sm:8px;
  --kai-r-md:14px;
  --kai-r-lg:22px;
  --kai-r-pill:999px;
  --kai-sh-1:0 1px 2px rgba(20,32,30,.05);
  --kai-sh-2:0 16px 36px -18px rgba(14,107,92,.28);
  --kai-grad:linear-gradient(135deg,#0E6B5C 0%,#2E9C87 55%,#8ACBB7 100%);
  --kai-font:"PingFang SC","Microsoft YaHei","Noto 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(--kai-font);font-size:16px;line-height:1.75;
  color:var(--kai-body);background:var(--kai-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--kai-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--kai-accent)}
h1,h2,h3,h4{color:var(--kai-ink);font-weight:700;margin:0}
h1{font-size:46px;line-height:1.2;letter-spacing:-.01em}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.4}
h4{font-size:18px;line-height:1.5}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--kai-primary);outline-offset:2px;border-radius:6px}
.kai-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.kai-section{padding:96px 0}
.kai-section--tight{padding:72px 0}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--kai-primary);
  background:var(--kai-primary-soft);border-radius:var(--kai-r-sm);
  padding:5px 10px;margin-bottom:16px;font-weight:600;
}
.kai-lead{font-size:17px;line-height:1.8;color:var(--kai-body)}
.kai-muted{color:var(--kai-muted)}
.kai-section-head{max-width:760px;margin-bottom:48px}
.kai-section-head h2{margin-bottom:14px}
.kai-divider{height:1px;background:var(--kai-line);border:0;margin:0}
.kai-text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--kai-primary)}
.kai-text-link i{transition:transform .2s ease}
.kai-text-link:hover i{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.kai-header{
  position:sticky;top:0;z-index:1000;background:var(--kai-surface);
  border-bottom:1px solid var(--kai-line);transition:background .25s ease,box-shadow .25s ease;
}
.kai-header.is-scrolled{background:rgba(255,255,255,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(20,32,30,.06)}
.kai-nav{display:flex;align-items:center;gap:28px;height:64px}
.kai-logo{display:flex;align-items:center;gap:10px;color:var(--kai-primary);flex:0 0 auto}
.kai-logo:hover{color:var(--kai-primary)}
.kai-logo-mark{width:28px;height:28px;flex:0 0 28px}
.kai-logo-text{font-size:17px;font-weight:700;color:var(--kai-ink);letter-spacing:.01em;white-space:nowrap}
.kai-logo-text .kai-dot{color:var(--kai-accent);margin:0 2px}
.kai-logo-text em{font-style:normal;font-size:13px;font-weight:500;color:var(--kai-muted)}
.kai-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.kai-nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--kai-body);
  padding:10px 12px;border-radius:10px;transition:color .18s ease,background .18s ease;
}
.kai-nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--kai-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;border-radius:2px;
}
.kai-nav-link:hover{color:var(--kai-primary);background:var(--kai-primary-soft)}
.kai-nav-link:hover::after,.kai-nav-link.active::after{transform:scaleX(1)}
.kai-nav-link.active{color:var(--kai-primary);font-weight:600}
.kai-nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.kai-search{
  position:relative;display:flex;align-items:center;gap:8px;
  height:38px;min-width:250px;padding:0 10px 0 12px;
  background:#FBFAF7;border:1px solid var(--kai-line);border-radius:10px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.kai-search:focus-within{border-color:var(--kai-primary);background:#fff;box-shadow:0 0 0 3px rgba(14,107,92,.12)}
.kai-search-icon{font-size:13px;color:var(--kai-muted)}
.kai-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--kai-ink);font-family:inherit;
}
.kai-search input::placeholder{color:#A6B2AF}
.kai-kbd{font-size:11px;color:var(--kai-muted);border:1px solid var(--kai-line);background:#fff;border-radius:6px;padding:2px 6px;white-space:nowrap}
.kai-suggest{
  position:absolute;top:calc(100% + 10px);left:0;width:280px;background:#fff;
  border:1px solid var(--kai-line);border-radius:var(--kai-r-md);box-shadow:var(--kai-sh-2);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;z-index:70;
}
.kai-search:focus-within .kai-suggest{opacity:1;visibility:visible;transform:translateY(0)}
.kai-suggest a{display:block;font-size:14px;color:var(--kai-body);padding:8px 10px;border-radius:8px}
.kai-suggest a:hover{background:var(--kai-primary-soft);color:var(--kai-primary)}
.kai-suggest-title{font-size:12px;color:var(--kai-muted);letter-spacing:.04em;padding:8px 10px 4px}
.kai-icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--kai-line);background:#FBFAF7;color:var(--kai-body);
  transition:all .2s ease;
}
.kai-icon-btn:hover{color:var(--kai-primary);border-color:var(--kai-primary);background:#fff}
.btn-kai-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--kai-accent);color:#fff;font-weight:600;font-size:15px;
  padding:12px 26px;border-radius:var(--kai-r-pill);border:0;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  box-shadow:0 10px 24px -14px rgba(224,138,43,.8);
}
.btn-kai-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(224,138,43,.85);color:#fff}
.btn-kai-primary:active{transform:translateY(0)}
.kai-nav-cta{padding:9px 20px;font-size:14px}
.btn-kai-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--kai-primary);font-weight:600;font-size:15px;
  padding:11px 24px;border-radius:var(--kai-r-pill);border:1px solid var(--kai-primary);
  transition:background .2s ease,color .2s ease,transform .18s ease;
}
.btn-kai-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-deep);transform:translateY(-1px)}
.kai-burger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--kai-line);background:#FBFAF7;color:var(--kai-ink);
  align-items:center;justify-content:center;font-size:16px;
}
.kai-drawer{background:var(--kai-surface)}
.kai-drawer .offcanvas-header{border-bottom:1px solid var(--kai-line);padding:16px 20px}
.kai-drawer .offcanvas-body{padding:16px 20px 32px}
.kai-drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 12px;border-radius:12px;font-size:15px;font-weight:500;color:var(--kai-body);
}
.kai-drawer-link:hover,.kai-drawer-link.active{background:var(--kai-primary-soft);color:var(--kai-primary)}
.kai-drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;margin-bottom:16px;
  background:#FBFAF7;border:1px solid var(--kai-line);border-radius:10px;
}
.kai-drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;font-family:inherit}

/* ---------- 面包屑 & 导语 ---------- */
.kai-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--kai-muted);padding-top:28px}
.kai-breadcrumb a{color:var(--kai-muted)}
.kai-breadcrumb a:hover{color:var(--kai-primary)}
.kai-breadcrumb .sep{opacity:.6}
.kai-breadcrumb .cur{color:var(--kai-primary);font-weight:600}
.kai-intro{padding:28px 0 72px}
.kai-intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.kai-intro h1{margin-bottom:18px}
.kai-intro .kai-lead{font-size:18px;max-width:56ch}
.kai-hero-img{position:relative;border-radius:var(--kai-r-lg);overflow:hidden;border:1px solid var(--kai-line);background:var(--kai-primary-soft);box-shadow:var(--kai-sh-1)}
.kai-hero-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.kai-hero-img::after{content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.18;pointer-events:none}
.kai-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.kai-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--kai-primary-deep);background:var(--kai-primary-soft);border-radius:var(--kai-r-sm);padding:6px 12px;
}
.kai-chip i{font-size:11px;color:var(--kai-primary)}

/* ---------- 数据带 ---------- */
.kai-band{background:var(--kai-primary-deep);color:#EAF4F1;position:relative;overflow:hidden}
.kai-band::before{content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.16;pointer-events:none}
.kai-band .kai-container{position:relative;z-index:1}
.kai-band h2{color:#fff}
.kai-band .kai-eyebrow{background:rgba(255,255,255,.12);color:#CFEAE2}
.kai-band-head{max-width:720px;margin-bottom:48px}
.kai-band-head p{color:#BBD6CE;margin-top:12px}
.kai-band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border-radius:var(--kai-r-md);overflow:hidden}
.kai-band-cell{background:rgba(10,75,65,.72);padding:28px 24px}
.kai-band-cell strong{display:block;font-size:40px;line-height:1.1;color:#fff;font-weight:700}
.kai-band-cell strong span{font-size:16px;font-weight:600;margin-left:4px;color:#8ACBB7}
.kai-band-cell p{margin:10px 0 0;font-size:13px;color:#A9C8C0;line-height:1.6}
.kai-band-bar{margin-top:34px}
.kai-band-bar-top{display:flex;justify-content:space-between;font-size:13px;color:#BBD6CE;margin-bottom:10px}
.kai-band-track{height:6px;border-radius:999px;background:rgba(255,255,255,.16);overflow:hidden}
.kai-band-fill{height:100%;width:82%;border-radius:999px;background:linear-gradient(90deg,#8ACBB7,#E08A2B)}

/* ---------- 时间轴 ---------- */
.kai-timeline{position:relative;margin-top:8px}
.kai-timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(14,107,92,.45),rgba(14,107,92,.12));
}
.kai-tl-item{position:relative;padding:0 0 40px 60px}
.kai-tl-item:last-child{padding-bottom:0}
.kai-tl-dot{
  position:absolute;left:6px;top:22px;width:19px;height:19px;border-radius:50%;
  background:#fff;border:2px solid var(--kai-primary);box-shadow:0 0 0 5px rgba(14,107,92,.09);
}
.kai-tl-item:first-child .kai-tl-dot{background:var(--kai-accent);border-color:var(--kai-accent);box-shadow:0 0 0 5px rgba(224,138,43,.14)}
.kai-tl-card{
  background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-md);
  padding:26px 28px;box-shadow:var(--kai-sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.kai-tl-card:hover{transform:translateY(-2px);box-shadow:var(--kai-sh-2);border-color:rgba(14,107,92,.3)}
.kai-tl-step{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--kai-primary);background:var(--kai-primary-soft);border-radius:6px;padding:4px 10px;margin-bottom:12px;
}
.kai-tl-card h3{font-size:20px;margin-bottom:10px}
.kai-tl-card > p{font-size:15px;line-height:1.8;color:var(--kai-body)}
.kai-tl-points{margin-top:16px;display:grid;gap:8px}
.kai-tl-points li{position:relative;padding-left:18px;font-size:14px;color:var(--kai-body)}
.kai-tl-points li::before{
  content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--kai-primary);
}
.kai-tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--kai-line)}
.kai-tl-meta span{font-size:13px;color:var(--kai-muted);display:inline-flex;align-items:center;gap:6px}
.kai-tl-meta i{color:var(--kai-primary);font-size:12px}

/* ---------- 快捷索引卡 ---------- */
.kai-index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.kai-index-card{
  background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-md);
  padding:26px;box-shadow:var(--kai-sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.kai-index-card:hover{transform:translateY(-2px);box-shadow:var(--kai-sh-2);border-color:rgba(14,107,92,.3)}
.kai-index-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--kai-accent-soft);color:var(--kai-accent);font-size:17px;margin-bottom:16px;
}
.kai-index-card h3{font-size:18px;margin-bottom:8px}
.kai-index-card p{font-size:14px;line-height:1.8}
.kai-index-card .kai-text-link{margin-top:14px;font-size:14px}

/* ---------- 图文检查区 ---------- */
.kai-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.kai-split-media{border-radius:var(--kai-r-lg);overflow:hidden;border:1px solid var(--kai-line);background:var(--kai-primary-soft)}
.kai-split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.kai-check{margin-top:22px;display:grid;gap:14px}
.kai-check li{display:flex;gap:12px;font-size:15px;line-height:1.75}
.kai-check i{color:var(--kai-primary);font-size:14px;margin-top:.35em}

/* ---------- FAQ ---------- */
.kai-faq{background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-md);overflow:hidden;box-shadow:var(--kai-sh-1)}
.kai-faq .accordion-item{border:0;border-bottom:1px solid var(--kai-line);background:transparent}
.kai-faq .accordion-item:last-child{border-bottom:0}
.kai-faq .accordion-button{
  background:transparent;color:var(--kai-ink);font-size:16px;font-weight:600;
  padding:22px 26px;box-shadow:none;gap:16px;
}
.kai-faq .accordion-button::after{
  content:"\2b";font-family:var(--kai-font);font-size:20px;line-height:1;font-weight:400;
  background-image:none;width:auto;height:auto;color:var(--kai-primary);
  transform:rotate(0);transition:transform .22s ease;margin-left:auto;
}
.kai-faq .accordion-button:not(.collapsed){color:var(--kai-primary);background:var(--kai-primary-soft)}
.kai-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.kai-faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.kai-faq .accordion-body{background:var(--kai-bg);font-size:15px;line-height:1.8;color:var(--kai-body);padding:18px 26px 24px}

/* ---------- CTA ---------- */
.kai-cta{
  background:var(--kai-primary-deep);border-radius:var(--kai-r-lg);overflow:hidden;position:relative;
  padding:56px;color:#EAF4F1;
}
.kai-cta::before{content:"";position:absolute;inset:0;background:var(--kai-grad);opacity:.18;pointer-events:none}
.kai-cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.kai-cta h2{color:#fff;margin-bottom:14px}
.kai-cta p{color:#BBD6CE;font-size:15px;line-height:1.8}
.kai-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--kai-r-md);padding:26px}
.kai-field{margin-bottom:16px}
.kai-field label{display:block;font-size:14px;margin-bottom:6px;color:#CFEAE2}
.kai-field input,.kai-field textarea,.kai-field select{
  width:100%;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.9);color:var(--kai-ink);padding:12px 14px;font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.kai-field textarea{height:auto;min-height:92px;resize:vertical}
.kai-field input:focus,.kai-field textarea:focus,.kai-field select:focus{
  outline:none;border-color:var(--kai-accent);box-shadow:0 0 0 3px rgba(224,138,43,.25);background:#fff;
}
.kai-form-hint{font-size:13px;color:#A9C8C0;margin-top:12px}
.kai-form .btn-kai-primary{width:100%}

/* ---------- 页脚 ---------- */
.kai-footer{background:var(--kai-primary-deep);color:#BBD6CE;margin-top:96px;position:relative}
.kai-footer::before{content:"";position:absolute;top:0;left:0;width:120px;height:2px;background:linear-gradient(90deg,var(--kai-primary),var(--kai-accent))}
.kai-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.kai-footer .kai-logo-text{color:#fff}
.kai-footer .kai-logo-text em{color:#8FB8AF}
.kai-footer p{font-size:14px;line-height:1.8;margin-top:16px;color:#A9C8C0}
.kai-footer h4{font-size:13px;letter-spacing:.08em;color:#8FB8AF;margin-bottom:16px;font-weight:600}
.kai-footer ul{display:grid;gap:10px}
.kai-footer a{font-size:14px;color:#CFEAE2;display:inline-block;transition:color .18s ease,transform .18s ease}
.kai-footer a:hover{color:var(--kai-accent);transform:translateX(2px)}
.kai-footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding:24px 0 32px;font-size:13px;color:#8FB8AF;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .kai-search{min-width:200px}
  .kai-nav{gap:18px}
}
@media (max-width:991.98px){
  h1{font-size:38px}
  h2{font-size:27px}
  .kai-menu,.kai-search,.kai-icon-btn,.kai-nav-cta{display:none}
  .kai-burger{display:inline-flex}
  .kai-intro-grid{grid-template-columns:1fr;gap:32px}
  .kai-split{grid-template-columns:1fr;gap:32px}
  .kai-cta-inner{grid-template-columns:1fr;gap:32px}
  .kai-band-grid{grid-template-columns:repeat(2,1fr)}
  .kai-index-grid{grid-template-columns:repeat(2,1fr)}
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .kai-section{padding:72px 0}
  .kai-cta{padding:40px}
}
@media (max-width:767.98px){
  h1{font-size:32px}
  h2{font-size:25px}
  h3{font-size:20px}
  .kai-intro .kai-lead{font-size:17px}
  .kai-index-grid{grid-template-columns:1fr}
  .kai-tl-item{padding-left:44px}
  .kai-timeline::before{left:11px}
  .kai-tl-dot{left:2px}
  .kai-tl-card{padding:22px 20px}
  .kai-cta{padding:32px 24px;border-radius:18px}
  .kai-footer-grid{grid-template-columns:1fr}
  .kai-section{padding:56px 0}
  .kai-section--tight{padding:48px 0}
}
@media (max-width:520px){
  .kai-container{padding:0 16px}
  h1{font-size:28px}
  .kai-band-grid{grid-template-columns:1fr}
  .kai-band-cell strong{font-size:34px}
  .kai-hero-img img{aspect-ratio:16/10}
  .kai-breadcrumb{font-size:13px}
  .kai-faq .accordion-button{padding:18px 18px;font-size:15px}
  .kai-faq .accordion-body{padding:16px 18px 20px}
}