/* roulang page: index */
:root{
  --ky-ink:#12161B;
  --ky-ink-2:#1E242B;
  --ky-celadon:#5F7A72;
  --ky-amber:#D97B34;
  --ky-amber-dark:#C06A28;
  --ky-bg:#F7F7F5;
  --ky-surface:#FFFFFF;
  --ky-line:#E4E5E2;
  --ky-muted:#5A6169;
  --ky-r-btn:6px;
  --ky-r-card:10px;
  --ky-r-img:8px;
  --ky-r-badge:4px;
  --ky-sh-1:0 1px 2px rgba(18,22,27,.04);
  --ky-sh-2:0 12px 32px -16px rgba(18,22,27,.16);
  --ky-ease:cubic-bezier(.22,1,.36,1);
  --ky-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --ky-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ky-bg);color:var(--ky-ink);
  font-family:var(--ky-sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--ky-serif);font-weight:700;letter-spacing:-.01em;color:var(--ky-ink);margin:0;line-height:1.3}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ky-ease)}
a:hover{color:var(--ky-celadon)}
img{max-width:100%;display:block;background:#E4E5E2}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
::selection{background:var(--ky-amber);color:#fff}
:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px;border-radius:4px}
.ky-container{max-width:1240px;margin:0 auto;padding:0 32px}
.ky-num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.ky-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,247,245,.94);
  border-bottom:1px solid var(--ky-line);
  transition:height .28s var(--ky-ease),background .28s var(--ky-ease),box-shadow .28s var(--ky-ease);
}
.ky-header.is-stuck{
  background:rgba(247,247,245,.88);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 1px 0 rgba(18,22,27,.06);
}
.ky-nav{display:flex;align-items:center;justify-content:space-between;gap:28px;height:64px;transition:height .28s var(--ky-ease)}
.ky-header.is-stuck .ky-nav{height:56px}
.ky-nav-left{display:flex;align-items:center;gap:38px;min-width:0}
.ky-logo{display:inline-flex;align-items:baseline;gap:8px;font-family:var(--ky-serif);font-weight:700;font-size:20px;letter-spacing:.02em;color:var(--ky-ink);white-space:nowrap}
.ky-logo .ky-logo-en{font-family:var(--ky-serif);font-size:15px;font-weight:700;letter-spacing:.16em;color:var(--ky-celadon);text-transform:lowercase}
.ky-menu{display:flex;align-items:center;gap:30px}
.ky-nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ky-ink);white-space:nowrap}
.ky-nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--ky-amber);transition:width .3s var(--ky-ease)}
.ky-nav-link:hover::after,.ky-nav-link.is-active::after{width:100%}
.ky-nav-link.is-active{font-weight:700}
.ky-nav-right{display:flex;align-items:center;gap:18px}
.ky-search{display:flex;align-items:center;gap:8px;color:var(--ky-muted);font-size:14px;transition:color .22s var(--ky-ease)}
.ky-search:hover{color:var(--ky-ink)}
.ky-search svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6}
.ky-search-bar{display:none;align-items:center}
.ky-search-bar.is-open{display:flex}
.ky-search-bar input{
  width:180px;height:36px;border:0;border-bottom:1px solid var(--ky-ink);
  background:transparent;font-size:14px;padding:0 4px;
}
.ky-search-bar input:focus{outline:none;border-bottom-color:var(--ky-amber)}
.ky-burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--ky-line);border-radius:var(--ky-r-btn)}
.ky-burger span{display:block;width:16px;height:1.5px;background:var(--ky-ink);position:relative}
.ky-burger span::before,.ky-burger span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ky-ink)}
.ky-burger span::before{top:-5px}
.ky-burger span::after{top:5px}
.ky-drawer{
  position:fixed;inset:0;z-index:1045;background:var(--ky-bg);
  padding:76px 24px 32px;display:flex;flex-direction:column;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .28s var(--ky-ease),transform .28s var(--ky-ease);
}
.ky-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.ky-drawer-close{position:absolute;top:18px;right:24px;font-size:24px;line-height:1;color:var(--ky-ink)}
.ky-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:28px}
.ky-drawer nav a{font-family:var(--ky-serif);font-size:22px;font-weight:700;padding:14px 0;border-bottom:1px solid var(--ky-line)}
.ky-drawer nav a.is-active{color:var(--ky-amber)}
.ky-drawer .ky-drawer-cta{margin-top:auto}

/* ---------- 按钮 ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--ky-r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .24s var(--ky-ease),color .24s var(--ky-ease),border-color .24s var(--ky-ease),transform .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-btn-primary{background:var(--ky-amber);color:#fff;border:1px solid var(--ky-amber)}
.ky-btn-primary:hover{background:var(--ky-amber-dark);border-color:var(--ky-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(217,123,52,.9)}
.ky-btn-ghost{background:transparent;color:var(--ky-ink);border:1px solid var(--ky-ink)}
.ky-btn-ghost:hover{background:var(--ky-ink);color:var(--ky-bg)}
.ky-btn-sm{height:38px;padding:0 18px;font-size:14px}
.ky-btn-block{width:100%}
.ky-textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ky-ink);border-bottom:1px solid transparent;text-decoration:underline;text-underline-offset:4px;text-decoration-color:transparent;transition:text-decoration-color .26s var(--ky-ease),color .26s var(--ky-ease)}
.ky-textlink:hover{color:var(--ky-amber-dark);text-decoration-color:var(--ky-amber-dark)}

/* ---------- 倒计时条 ---------- */
.ky-countdown{background:var(--ky-ink);color:var(--ky-bg)}
.ky-countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px;padding:10px 0}
.ky-countdown-label{font-size:14px;letter-spacing:.08em;color:rgba(247,247,245,.72)}
.ky-clock{display:flex;align-items:center;gap:8px}
.ky-clock-unit{display:flex;flex-direction:column;align-items:center;min-width:56px;padding:4px 8px;background:var(--ky-ink-2);border-radius:var(--ky-r-badge)}
.ky-clock-num{font-family:var(--ky-serif);font-size:20px;font-weight:700;color:var(--ky-amber);line-height:1.2;font-variant-numeric:tabular-nums}
.ky-clock-txt{font-size:11px;letter-spacing:.14em;color:rgba(247,247,245,.6)}

/* ---------- Hero ---------- */
.ky-hero{padding:64px 0 88px}
.ky-hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:end}
.ky-eyebrow{font-size:12px;letter-spacing:.2em;color:var(--ky-celadon);font-weight:600;margin-bottom:18px}
.ky-hero h1{font-size:42px;line-height:1.22}
.ky-hero-sub{margin-top:20px;font-size:16px;line-height:1.8;color:var(--ky-muted);max-width:460px}
.ky-hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.ky-hero-points{margin-top:34px;display:flex;flex-direction:column;gap:10px}
.ky-hero-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ky-muted)}
.ky-hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ky-amber);flex:none}
.ky-hero-media{position:relative}
.ky-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--ky-r-img)}
.ky-hero-media::after{content:"";position:absolute;right:-12px;bottom:-12px;width:56%;height:52%;border-right:1px solid var(--ky-amber);border-bottom:1px solid var(--ky-amber);pointer-events:none}

/* ---------- 区块通用 ---------- */
.ky-section{padding:96px 0}
.ky-section--soft{background:#F2F2EF}
.ky-section--tight{padding:72px 0}
.ky-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.ky-sec-head h2{font-size:28px}
.ky-sec-sub{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ky-muted);max-width:620px}
.ky-tagline{font-size:12px;letter-spacing:.2em;color:var(--ky-celadon);font-weight:600;margin-bottom:14px}

/* ---------- 卖点编号 ---------- */
.ky-points{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.ky-point{display:flex;gap:22px;padding:28px 0;border-top:1px solid var(--ky-line)}
.ky-point-num{font-family:var(--ky-serif);font-size:30px;font-weight:700;color:var(--ky-celadon);line-height:1;min-width:48px;font-variant-numeric:tabular-nums}
.ky-point h3{font-size:18px;margin-bottom:8px}
.ky-point p{font-size:15px;line-height:1.8;color:var(--ky-muted)}
@media (min-width:992px){.ky-points .ky-point:nth-child(even){transform:translateY(32px)}}

/* ---------- 数据条 ---------- */
.ky-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ky-line);border:1px solid var(--ky-line);border-radius:var(--ky-r-card);overflow:hidden}
.ky-stat{background:var(--ky-surface);padding:30px 24px}
.ky-stat-num{font-family:var(--ky-serif);font-size:34px;font-weight:700;color:var(--ky-ink);line-height:1.1;font-variant-numeric:tabular-nums}
.ky-stat-num span{font-size:16px;color:var(--ky-amber);margin-left:2px}
.ky-stat-txt{margin-top:10px;font-size:14px;color:var(--ky-muted)}

/* ---------- 图墙 ---------- */
.ky-gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.ky-gi{position:relative;overflow:hidden;border-radius:var(--ky-r-img);background:#E4E5E2}
.ky-gi img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ky-ease)}
.ky-gi:hover img{transform:scale(1.03)}
.ky-gi-mask{
  position:absolute;inset:0;display:flex;align-items:flex-end;padding:20px;
  background:linear-gradient(180deg,rgba(18,22,27,0) 38%,rgba(18,22,27,.78) 100%);
  opacity:0;transition:opacity .3s var(--ky-ease);
}
.ky-gi:hover .ky-gi-mask{opacity:1}
.ky-gi-mask h3{font-size:16px;color:#fff}
.ky-gi-mask p{font-size:13px;color:rgba(247,247,245,.78);margin-top:6px}
.ky-g-a{grid-column:span 5;height:300px}
.ky-g-b{grid-column:span 7;height:300px}
.ky-g-c{grid-column:span 7;height:300px}
.ky-g-d{grid-column:span 5;height:300px}
.ky-g-e{grid-column:span 4;height:240px}
.ky-g-f{grid-column:span 4;height:240px}
.ky-g-g{grid-column:span 4;height:240px}

/* ---------- 分类入口卡 ---------- */
.ky-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ky-cat{display:flex;flex-direction:column;background:var(--ky-surface);border:1px solid var(--ky-line);border-radius:var(--ky-r-card);overflow:hidden;transition:transform .28s var(--ky-ease),box-shadow .28s var(--ky-ease),border-color .28s var(--ky-ease)}
.ky-cat:hover{transform:translateY(-4px);box-shadow:var(--ky-sh-2);border-color:var(--ky-celadon)}
.ky-cat img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ky-cat-body{padding:24px 26px 28px}
.ky-cat-body h3{font-size:19px;margin-bottom:10px}
.ky-cat-body p{font-size:15px;line-height:1.8;color:var(--ky-muted)}
.ky-cat-more{margin-top:18px;font-size:14px;font-weight:600;color:var(--ky-amber-dark)}
.ky-badge{display:inline-block;padding:3px 10px;border-radius:var(--ky-r-badge);background:rgba(95,122,114,.12);color:var(--ky-celadon);font-size:13px;font-weight:600;letter-spacing:.02em}

/* ---------- 深色 CTA 与表单 ---------- */
.ky-cta{background:var(--ky-ink);color:var(--ky-bg);padding:88px 0}
.ky-cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:start}
.ky-cta h2{color:#fff;font-size:30px}
.ky-cta p{margin-top:16px;font-size:15px;line-height:1.9;color:rgba(247,247,245,.72);max-width:460px}
.ky-cta-list{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.ky-cta-list li{display:flex;gap:10px;font-size:14px;color:rgba(247,247,245,.8)}
.ky-cta-list li::before{content:"";width:6px;height:6px;margin-top:8px;border-radius:50%;background:var(--ky-amber);flex:none}
.ky-form{background:var(--ky-ink-2);border-radius:var(--ky-r-card);padding:32px}
.ky-field{margin-bottom:18px}
.ky-field label{display:block;font-size:14px;margin-bottom:8px;color:rgba(247,247,245,.86)}
.ky-field input,.ky-field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--ky-r-img);
  border:1px solid rgba(247,247,245,.16);background:rgba(247,247,245,.04);color:#fff;
  transition:border-color .22s var(--ky-ease),box-shadow .22s var(--ky-ease);
}
.ky-field select option{color:var(--ky-ink)}
.ky-field input::placeholder{color:rgba(247,247,245,.42)}
.ky-field input:focus,.ky-field select:focus{outline:none;border-color:var(--ky-amber);box-shadow:0 0 0 3px rgba(217,123,52,.16)}
.ky-form-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(247,247,245,.55)}
.ky-form-msg{margin-top:12px;font-size:13px;color:var(--ky-amber);display:none}
.ky-form-msg.is-show{display:block}

/* ---------- FAQ ---------- */
.ky-faq{border-top:1px solid var(--ky-line)}
.ky-faq-item{border-bottom:1px solid var(--ky-line)}
.ky-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0;text-align:left;font-family:var(--ky-serif);font-size:17px;font-weight:700;color:var(--ky-ink);
  transition:color .22s var(--ky-ease);
}
.ky-faq-q:hover{color:var(--ky-amber-dark)}
.ky-faq-q::after{content:"+";font-family:var(--ky-sans);font-size:20px;font-weight:400;color:var(--ky-celadon);transition:transform .26s var(--ky-ease),color .26s var(--ky-ease)}
.ky-faq-q[aria-expanded="true"]::after{content:"−";color:var(--ky-amber);transform:rotate(180deg)}
.ky-faq-a{padding:0 0 26px;font-size:15px;line-height:1.9;color:var(--ky-muted);max-width:860px}

/* ---------- 内容卡片（CMS） ---------- */
.ky-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ky-card{display:flex;flex-direction:column;background:var(--ky-surface);border:1px solid var(--ky-line);border-radius:var(--ky-r-card);overflow:hidden;transition:transform .28s var(--ky-ease),box-shadow .28s var(--ky-ease),border-color .28s var(--ky-ease)}
.ky-card:hover{transform:translateY(-4px);box-shadow:var(--ky-sh-2);border-color:var(--ky-celadon)}
.ky-card-thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.ky-card-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.ky-card-title{font-size:17px;line-height:1.55;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ky-card:hover .ky-card-title{color:var(--ky-celadon)}
.ky-card-excerpt{font-size:15px;line-height:1.8;color:var(--ky-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ky-card-foot{margin-top:20px;padding-top:16px;border-top:1px solid var(--ky-line);font-size:13px;color:var(--ky-muted);display:flex;align-items:center;justify-content:space-between;gap:12px}
.ky-empty{
  grid-column:1 / -1;border:1px dashed var(--ky-line);border-radius:var(--ky-r-card);
  padding:56px 20px;text-align:center;font-size:15px;color:var(--ky-muted);background:var(--ky-surface);
}

/* ---------- 页脚 ---------- */
.ky-footer{background:var(--ky-ink);color:rgba(247,247,245,.72);padding:64px 0 0}
.ky-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;border-bottom:1px solid rgba(247,247,245,.12)}
.ky-footer-col{padding:0 28px 40px;border-right:1px solid rgba(247,247,245,.08)}
.ky-footer-col:first-child{padding-left:0}
.ky-footer-col:last-child{border-right:0;padding-right:0}
.ky-footer .ky-logo{color:#fff}
.ky-footer .ky-logo .ky-logo-en{color:var(--ky-amber)}
.ky-footer-desc{margin-top:16px;font-size:14px;line-height:1.85;max-width:300px}
.ky-footer h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.ky-footer-links{display:flex;flex-direction:column;gap:12px}
.ky-footer-links a{font-size:14px}
.ky-footer-links a:hover{color:var(--ky-amber)}
.ky-footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0 26px;font-size:13px;color:rgba(247,247,245,.5)}

/* ---------- 动效 ---------- */
.ky-reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ky-ease),transform .6s var(--ky-ease)}
.ky-reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .ky-reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .ky-container{padding:0 28px}
  .ky-hero h1{font-size:36px}
  .ky-cards{grid-template-columns:repeat(2,1fr)}
  .ky-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .ky-menu,.ky-search,.ky-nav-right .ky-btn{display:none}
  .ky-burger{display:inline-flex}
  .ky-hero{padding:48px 0 64px}
  .ky-hero-grid{grid-template-columns:1fr;gap:36px;align-items:start}
  .ky-hero-media::after{display:none}
  .ky-section{padding:64px 0}
  .ky-cta{padding:64px 0}
  .ky-cta-grid{grid-template-columns:1fr;gap:36px}
  .ky-cats{grid-template-columns:1fr}
  .ky-gallery{grid-template-columns:repeat(6,1fr)}
  .ky-g-a,.ky-g-b,.ky-g-c,.ky-g-d,.ky-g-e,.ky-g-f,.ky-g-g{grid-column:span 3;height:220px}
  .ky-footer-grid{grid-template-columns:1fr 1fr}
  .ky-footer-col{border-right:0;padding:0 0 32px}
  .ky-footer-col:nth-child(odd){padding-right:20px}
}
@media (max-width:767.98px){
  .ky-points{grid-template-columns:1fr}
  .ky-cards{grid-template-columns:1fr}
  .ky-sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .ky-countdown-inner{flex-direction:column;align-items:flex-start;gap:10px;padding:14px 0}
  .ky-clock{flex-wrap:wrap}
}
@media (max-width:575.98px){
  .ky-container{padding:0 20px}
  .ky-hero h1{font-size:30px}
  .ky-section,.ky-section--tight{padding:56px 0}
  .ky-sec-head h2{font-size:24px}
  .ky-stats{grid-template-columns:1fr}
  .ky-gallery{grid-template-columns:1fr}
  .ky-g-a,.ky-g-b,.ky-g-c,.ky-g-d,.ky-g-e,.ky-g-f,.ky-g-g{grid-column:span 1;height:200px}
  .ky-btn{width:100%}
  .ky-hero-cta{flex-direction:column;align-items:stretch}
  .ky-form{padding:24px 20px}
  .ky-footer-grid{grid-template-columns:1fr}
  .ky-footer-col:nth-child(odd){padding-right:0}
  .ky-footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --ky-ink:#12161B;
  --ky-ink-2:#1E242B;
  --ky-celadon:#5F7A72;
  --ky-celadon-soft:rgba(95,122,114,.12);
  --ky-amber:#D97B34;
  --ky-amber-dark:#C06A28;
  --ky-bg:#F7F7F5;
  --ky-surface:#FFFFFF;
  --ky-line:#E4E5E2;
  --ky-muted:#5A6169;
  --ky-r-badge:4px;
  --ky-r-btn:6px;
  --ky-r-img:8px;
  --ky-r-card:10px;
  --ky-sh-1:0 1px 2px rgba(18,22,27,.04);
  --ky-sh-2:0 12px 32px -16px rgba(18,22,27,.16);
  --ky-ease:cubic-bezier(.22,1,.36,1);
  --ky-dur:.28s;
  --ky-wrap:1240px;
  --ky-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --ky-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ky-bg);color:var(--ky-ink);
  font-family:var(--ky-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ky-dur) var(--ky-ease),border-color var(--ky-dur) var(--ky-ease),background-color var(--ky-dur) var(--ky-ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--ky-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px;border-radius:2px}
.ky-container{width:100%;max-width:var(--ky-wrap);margin:0 auto;padding:0 32px}
.ky-num{font-variant-numeric:tabular-nums}

/* ---------- Header / Nav ---------- */
.ky-header{
  position:sticky;top:0;z-index:60;
  background:var(--ky-bg);
  transition:background-color .3s var(--ky-ease),box-shadow .3s var(--ky-ease),border-color .3s var(--ky-ease);
  border-bottom:1px solid transparent;
}
.ky-header.is-stuck{
  background:rgba(247,247,245,.94);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--ky-line);
  box-shadow:var(--ky-sh-1);
}
.ky-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;transition:height .3s var(--ky-ease)}
.ky-header.is-stuck .ky-nav{height:56px}
.ky-nav-left{display:flex;align-items:center;gap:40px;min-width:0}
.ky-logo{display:inline-flex;align-items:baseline;gap:8px;font-family:var(--ky-serif);font-weight:700;font-size:21px;letter-spacing:-.01em;color:var(--ky-ink);white-space:nowrap}
.ky-logo-en{font-size:13px;letter-spacing:.16em;text-transform:lowercase;color:var(--ky-celadon);font-weight:700;font-family:var(--ky-sans)}
.ky-menu{display:flex;align-items:center;gap:30px}
.ky-nav-link{position:relative;font-size:15px;color:var(--ky-ink);padding:6px 0;white-space:nowrap}
.ky-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--ky-amber);
  transition:width var(--ky-dur) var(--ky-ease);
}
.ky-nav-link:hover{color:var(--ky-celadon)}
.ky-nav-link:hover::after{width:100%}
.ky-nav-link.is-active{font-weight:600}
.ky-nav-link.is-active::after{width:100%}
.ky-nav-right{display:flex;align-items:center;gap:14px}
.ky-search-bar{width:0;opacity:0;overflow:hidden;transition:width .3s var(--ky-ease),opacity .3s var(--ky-ease)}
.ky-search-bar.is-open{width:210px;opacity:1}
.ky-search-bar input{
  width:100%;height:36px;border:1px solid var(--ky-line);border-radius:var(--ky-r-btn);
  background:var(--ky-surface);padding:0 12px;font-size:14px;outline:none;
  transition:border-color var(--ky-dur) var(--ky-ease),box-shadow var(--ky-dur) var(--ky-ease);
}
.ky-search-bar input:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px rgba(217,123,52,.14)}
.ky-search{display:inline-flex;align-items:center;gap:7px;background:none;border:0;padding:6px 4px;font-size:14px;color:var(--ky-muted);cursor:pointer;border-radius:var(--ky-r-btn)}
.ky-search svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.ky-search:hover{color:var(--ky-ink)}
.ky-burger{display:none;width:40px;height:40px;border:1px solid var(--ky-line);background:var(--ky-surface);border-radius:var(--ky-r-btn);position:relative;cursor:pointer}
.ky-burger span,.ky-burger span::before,.ky-burger span::after{
  position:absolute;left:50%;width:18px;height:1.6px;background:var(--ky-ink);transform:translateX(-50%);
  transition:transform .28s var(--ky-ease);
}
.ky-burger span{top:50%;margin-top:-.8px}
.ky-burger span::before{content:"";top:-6px;left:0;transform:none}
.ky-burger span::after{content:"";top:6px;left:0;transform:none}

/* ---------- Buttons ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--ky-r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;border:1px solid transparent;
  transition:background-color var(--ky-dur) var(--ky-ease),color var(--ky-dur) var(--ky-ease),
             border-color var(--ky-dur) var(--ky-ease),transform var(--ky-dur) var(--ky-ease),
             box-shadow var(--ky-dur) var(--ky-ease);
}
.ky-btn-sm{height:38px;padding:0 18px;font-size:14px}
.ky-btn-primary{background:var(--ky-amber);color:#fff;box-shadow:var(--ky-sh-1)}
.ky-btn-primary:hover{background:var(--ky-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-sh-2)}
.ky-btn-outline{background:transparent;color:var(--ky-ink);border-color:var(--ky-ink)}
.ky-btn-outline:hover{background:var(--ky-ink);color:#F7F7F5;transform:translateY(-1px)}
.ky-btn-ghost{background:transparent;color:#F7F7F5;border-color:rgba(247,247,245,.42)}
.ky-btn-ghost:hover{background:#F7F7F5;color:var(--ky-ink);border-color:#F7F7F5}
.ky-btn:active{transform:translateY(0)}

/* ---------- Badge ---------- */
.ky-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--ky-r-badge);
  background:var(--ky-celadon-soft);color:var(--ky-celadon);
  font-size:13px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}

/* ---------- Breadcrumb ---------- */
.ky-crumb{padding:20px 0 0;font-size:13px;color:var(--ky-muted)}
.ky-crumb ol{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:nowrap}
.ky-crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.ky-crumb li+li::before{content:"/";color:#B9BCB6}
.ky-crumb a{color:var(--ky-muted)}
.ky-crumb a:hover{color:var(--ky-celadon)}
.ky-crumb .is-current{color:var(--ky-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52ch}

/* ---------- Article hero ---------- */
.ky-article-hero{padding:26px 0 34px;border-bottom:1px solid var(--ky-line)}
.ky-article-head{max-width:820px}
.ky-article-title{
  font-size:clamp(28px,3.4vw,38px);line-height:1.28;margin:16px 0 18px;letter-spacing:-.015em;
}
.ky-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ky-muted)}
.ky-meta-dot{width:3px;height:3px;border-radius:50%;background:#C4C7C1}
.ky-meta-item{display:inline-flex;align-items:center;gap:6px}

/* ---------- Article layout ---------- */
.ky-article-main{padding:56px 0 88px}
.ky-article-layout{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:64px;align-items:start}
.ky-article-col{min-width:0;max-width:780px}

/* ---------- Article body ---------- */
.ky-article-body{font-size:17px;line-height:1.95;color:var(--ky-ink)}
.ky-article-body>*+*{margin-top:22px}
.ky-article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.35;margin-top:48px;padding-left:16px;position:relative;
}
.ky-article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--ky-amber);
}
.ky-article-body h3{font-size:18px;margin-top:34px}
.ky-article-body p{color:#1B2027}
.ky-article-body a{color:var(--ky-celadon);border-bottom:1px solid rgba(95,122,114,.35)}
.ky-article-body a:hover{color:var(--ky-amber-dark);border-bottom-color:var(--ky-amber-dark)}
.ky-article-body strong{font-weight:700;color:var(--ky-ink)}
.ky-article-body ul,.ky-article-body ol{padding-left:0}
.ky-article-body ul li,.ky-article-body ol li{position:relative;padding-left:22px;margin-top:10px;color:#2A3037}
.ky-article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;background:var(--ky-celadon);
}
.ky-article-body ol{counter-reset:kyol}
.ky-article-body ol li{counter-increment:kyol}
.ky-article-body ol li::before{
  content:counter(kyol);position:absolute;left:0;top:.25em;font-size:13px;font-weight:700;color:var(--ky-amber);
}
.ky-article-body img{border-radius:var(--ky-r-img);margin:28px 0;width:100%;height:auto}
.ky-article-body blockquote{
  margin:30px 0;padding:18px 24px;border-left:3px solid var(--ky-celadon);
  background:var(--ky-surface);border-radius:0 var(--ky-r-card) var(--ky-r-card) 0;
  color:var(--ky-muted);font-size:16px;
}
.ky-article-body figure{margin:28px 0}
.ky-article-body figcaption{font-size:13px;color:var(--ky-muted);margin-top:10px;text-align:center}
.ky-article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:28px 0}
.ky-article-body th,.ky-article-body td{border:1px solid var(--ky-line);padding:12px 14px;text-align:left}
.ky-article-body th{background:#EFEFEC;font-weight:600}
.ky-article-body hr{border:0;border-top:1px solid var(--ky-line);margin:40px 0}

/* ---------- Empty state ---------- */
.ky-empty{
  border:1px solid var(--ky-line);border-radius:var(--ky-r-card);background:var(--ky-surface);
  padding:56px 24px;text-align:center;color:var(--ky-muted);font-size:15px;
}
.ky-empty p{margin-bottom:20px}

/* ---------- Tags ---------- */
.ky-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--ky-line)}
.ky-tags-label{font-size:13px;color:var(--ky-muted);margin-right:4px}
.ky-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--ky-r-badge);
  border:1px solid var(--ky-line);background:var(--ky-surface);font-size:13px;color:var(--ky-muted);
  transition:border-color var(--ky-dur) var(--ky-ease),color var(--ky-dur) var(--ky-ease),background-color var(--ky-dur) var(--ky-ease);
}
.ky-tag:hover{border-color:var(--ky-celadon);color:var(--ky-celadon);background:var(--ky-celadon-soft)}

/* ---------- TOC ---------- */
.ky-toc{position:sticky;top:84px}
.ky-toc-inner{border-left:1px solid var(--ky-line);padding-left:20px}
.ky-toc-title{font-size:14px;font-family:var(--ky-sans);font-weight:600;letter-spacing:.06em;color:var(--ky-muted);margin-bottom:14px}
.ky-toc-list li{margin-bottom:9px}
.ky-toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--ky-muted);border-left:2px solid transparent;
  margin-left:-21px;padding-left:19px;
}
.ky-toc-list a:hover{color:var(--ky-ink)}
.ky-toc-list a.is-current{color:var(--ky-ink);font-weight:600;border-left-color:var(--ky-amber)}
.ky-toc-item.is-sub a{font-size:13px;padding-left:31px}
.ky-toc-toggle{display:none}

/* ---------- CTA dark block ---------- */
.ky-cta{background:var(--ky-ink);color:#F7F7F5;padding:88px 0}
.ky-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ky-cta h2{font-size:clamp(24px,2.6vw,32px);color:#fff}
.ky-cta p{margin-top:16px;color:rgba(247,247,245,.72);font-size:15.5px;line-height:1.85;max-width:40ch}
.ky-cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.ky-cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,247,245,.82)}
.ky-cta-points li::before{content:"";width:16px;height:1.6px;background:var(--ky-amber);flex:none}
.ky-form{
  background:var(--ky-ink-2);border:1px solid rgba(247,247,245,.08);border-radius:var(--ky-r-card);
  padding:28px;
}
.ky-field{margin-bottom:16px}
.ky-field label{display:block;font-size:13px;color:rgba(247,247,245,.66);margin-bottom:8px}
.ky-field input,.ky-field select{
  width:100%;height:48px;border-radius:8px;border:1px solid rgba(247,247,245,.16);
  background:rgba(247,247,245,.05);color:#F7F7F5;padding:0 14px;font-size:15px;outline:none;
  transition:border-color var(--ky-dur) var(--ky-ease),box-shadow var(--ky-dur) var(--ky-ease);
}
.ky-field select option{color:#12161B}
.ky-field input::placeholder{color:rgba(247,247,245,.36)}
.ky-field input:focus,.ky-field select:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px rgba(217,123,52,.22)}
.ky-form .ky-btn{width:100%}
.ky-form-note{margin-top:12px;font-size:13px;color:rgba(247,247,245,.5);line-height:1.7}
.ky-form-msg{margin-top:12px;font-size:13px;color:var(--ky-amber);display:none}
.ky-form-msg.is-show{display:block}

/* ---------- Related ---------- */
.ky-related{padding:80px 0 0}
.ky-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.ky-section-head h2{font-size:clamp(22px,2.4vw,28px)}
.ky-more{font-size:14px;color:var(--ky-muted);border-bottom:1px solid transparent}
.ky-more:hover{color:var(--ky-celadon);border-bottom-color:var(--ky-celadon)}
.ky-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.ky-card{
  display:flex;flex-direction:column;background:var(--ky-surface);border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);overflow:hidden;box-shadow:var(--ky-sh-1);
  transition:transform var(--ky-dur) var(--ky-ease),box-shadow var(--ky-dur) var(--ky-ease),border-color var(--ky-dur) var(--ky-ease);
}
.ky-card:hover{transform:translateY(-4px);box-shadow:var(--ky-sh-2);border-color:var(--ky-celadon)}
.ky-card-thumb{position:relative;aspect-ratio:16/9;background:var(--ky-line);overflow:hidden}
.ky-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ky-ease)}
.ky-card:hover .ky-card-thumb img{transform:scale(1.03)}
.ky-card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.ky-card-title{font-size:17px;line-height:1.5;transition:color var(--ky-dur) var(--ky-ease)}
.ky-card:hover .ky-card-title{color:var(--ky-celadon)}
.ky-card-date{font-size:13px;color:var(--ky-muted);margin-top:auto}

/* ---------- Adjacent ---------- */
.ky-adjacent{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:64px}
.ky-adjacent-item{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);background:var(--ky-surface);
  transition:border-color var(--ky-dur) var(--ky-ease),transform var(--ky-dur) var(--ky-ease),box-shadow var(--ky-dur) var(--ky-ease);
}
.ky-adjacent-item:hover{border-color:var(--ky-celadon);transform:translateY(-3px);box-shadow:var(--ky-sh-2)}
.ky-adjacent-item.is-next{text-align:right;align-items:flex-end}
.ky-adjacent-label{font-size:13px;color:var(--ky-amber);font-weight:600;letter-spacing:.04em}
.ky-adjacent-title{font-size:15.5px;line-height:1.6;color:var(--ky-ink)}
.ky-back-row{margin-top:36px;display:flex;justify-content:center}

/* ---------- Footer ---------- */
.ky-footer{background:var(--ky-ink);color:#F7F7F5;padding:72px 0 0;margin-top:88px}
.ky-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.ky-footer-col+.ky-footer-col{border-left:1px solid rgba(247,247,245,.1);padding-left:40px}
.ky-footer .ky-logo{color:#F7F7F5}
.ky-footer .ky-logo-en{color:#9DB3AB}
.ky-footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,247,245,.62);max-width:34ch}
.ky-footer-col h4{font-size:15px;font-family:var(--ky-sans);font-weight:600;margin-bottom:18px;color:#F7F7F5}
.ky-footer-links{display:flex;flex-direction:column;gap:11px}
.ky-footer-links a{font-size:14px;color:rgba(247,247,245,.62)}
.ky-footer-links a:hover{color:var(--ky-amber)}
.ky-footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(247,247,245,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,247,245,.48);
}

/* ---------- Drawer ---------- */
.ky-drawer{
  position:fixed;inset:0;z-index:90;background:#F7F7F5;padding:20px 20px 32px;
  display:flex;flex-direction:column;transform:translateX(100%);
  transition:transform .32s var(--ky-ease);visibility:hidden;
}
.ky-drawer.is-open{transform:translateX(0);visibility:visible}
.ky-drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:20px}
.ky-drawer-close{
  width:40px;height:40px;border:1px solid var(--ky-line);background:#fff;border-radius:var(--ky-r-btn);
  font-size:20px;line-height:1;cursor:pointer;color:var(--ky-ink);
}
.ky-drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--ky-line)}
.ky-drawer-nav a{
  padding:18px 4px;font-size:16px;border-bottom:1px solid var(--ky-line);color:var(--ky-ink);
}
.ky-drawer-nav a:hover{color:var(--ky-celadon)}
.ky-drawer-cta{margin-top:auto}

/* ---------- Reveal ---------- */
.ky-reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ky-ease),transform .5s var(--ky-ease)}
.ky-reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .ky-article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .ky-article-col{max-width:none}
  .ky-toc{position:static;margin-bottom:28px}
  .ky-toc-inner{border-left:0;border:1px solid var(--ky-line);border-radius:var(--ky-r-card);background:var(--ky-surface);padding:0 20px}
  .ky-toc-toggle{
    display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;
    background:none;border:0;padding:18px 0;font-size:15px;font-weight:600;cursor:pointer;color:var(--ky-ink);
  }
  .ky-toc-toggle span:last-child{font-size:13px;color:var(--ky-muted);font-weight:400}
  .ky-toc-list{display:none;padding-bottom:16px}
  .ky-toc.is-open .ky-toc-list{display:block}
  .ky-toc-title{display:none}
  .ky-toc-list a{margin-left:-20px;padding-left:18px}
  .ky-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .ky-container{padding:0 24px}
  .ky-menu{display:none}
  .ky-search,.ky-search-bar{display:none}
  .ky-burger{display:block}
  .ky-nav-right .ky-btn-primary{display:none}
  .ky-cta-grid{grid-template-columns:1fr;gap:36px}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .ky-footer-col+.ky-footer-col{border-left:0;padding-left:0}
  .ky-footer-col:nth-child(n+3){border-top:1px solid rgba(247,247,245,.1);padding-top:28px}
}
@media (max-width:767px){
  .ky-container{padding:0 20px}
  .ky-article-main{padding:40px 0 64px}
  .ky-article-body{font-size:16px;line-height:1.9}
  .ky-cta{padding:64px 0}
  .ky-related{padding-top:64px}
  .ky-grid-3{grid-template-columns:1fr}
  .ky-adjacent{grid-template-columns:1fr}
  .ky-adjacent-item.is-next{text-align:left;align-items:flex-start}
  .ky-footer{padding-top:56px;margin-top:64px}
  .ky-footer-grid{grid-template-columns:1fr}
  .ky-footer-col:nth-child(n+2){border-top:1px solid rgba(247,247,245,.1);padding-top:26px}
  .ky-footer-bottom{flex-direction:column;gap:8px}
  .ky-article-title{font-size:26px}
}
@media (max-width:520px){
  .ky-search-bar.is-open{width:100%}
  .ky-btn{width:100%}
  .ky-btn-sm{width:auto}
  .ky-back-row .ky-btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .ky-reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ky-ink:#12161B;
  --ky-ink-2:#1E242B;
  --ky-celadon:#5F7A72;
  --ky-celadon-soft:rgba(95,122,114,.12);
  --ky-amber:#D97B34;
  --ky-amber-dark:#C06A28;
  --ky-bg:#F7F7F5;
  --ky-surface:#FFFFFF;
  --ky-line:#E4E5E2;
  --ky-text:#12161B;
  --ky-muted:#5A6169;
  --ky-r-sm:6px;
  --ky-r-md:10px;
  --ky-r-img:8px;
  --ky-r-badge:4px;
  --ky-shadow-1:0 1px 2px rgba(18,22,27,.04);
  --ky-shadow-2:0 12px 32px -16px rgba(18,22,27,.16);
  --ky-ease:cubic-bezier(.22,1,.36,1);
  --ky-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --ky-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ky-bg);
  color:var(--ky-text);
  font-family:var(--ky-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ky-ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(217,123,52,.24);}
:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px;}

/* 容器 */
.ky-container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* 导航 */
.ky-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,247,245,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ky-ease),border-color .3s var(--ky-ease),box-shadow .3s var(--ky-ease);
}
.ky-header.is-stuck{
  background:rgba(247,247,245,.95);
  border-bottom-color:var(--ky-line);
  box-shadow:0 1px 0 rgba(18,22,27,.02);
}
.ky-nav{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;transition:height .3s var(--ky-ease);
}
.ky-header.is-stuck .ky-nav{height:56px;}
.ky-nav-left{display:flex;align-items:center;gap:44px;min-width:0;}
.ky-nav-right{display:flex;align-items:center;gap:14px;}
.ky-logo{
  display:inline-flex;align-items:baseline;gap:7px;
  font-family:var(--ky-serif);font-weight:700;font-size:22px;
  letter-spacing:-.01em;color:var(--ky-ink);white-space:nowrap;
}
.ky-logo-en{
  font-family:var(--ky-sans);font-size:12px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ky-celadon);
}
.ky-menu{display:flex;align-items:center;gap:30px;}
.ky-nav-link{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;font-weight:500;color:var(--ky-text);
  transition:color .24s var(--ky-ease);
}
.ky-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ky-amber);transition:width .28s var(--ky-ease);
}
.ky-nav-link:hover{color:var(--ky-celadon);}
.ky-nav-link:hover::after{width:100%;}
.ky-nav-link.is-active{font-weight:700;}
.ky-nav-link.is-active::after{width:100%;}
.ky-search-bar{
  width:0;opacity:0;overflow:hidden;
  transition:width .3s var(--ky-ease),opacity .3s var(--ky-ease);
}
.ky-search-bar.is-open{width:196px;opacity:1;}
.ky-search-bar input{
  width:100%;height:36px;padding:0 12px;font-size:14px;
  color:var(--ky-text);background:#fff;
  border:1px solid var(--ky-line);border-radius:var(--ky-r-sm);
  outline:none;transition:border-color .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-search-bar input:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px rgba(217,123,52,.16);}
.ky-search{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 4px;background:none;border:0;cursor:pointer;
  font-size:14px;color:var(--ky-muted);transition:color .24s var(--ky-ease);
}
.ky-search svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;}
.ky-search:hover{color:var(--ky-ink);}
.ky-burger{
  display:none;position:relative;width:40px;height:40px;
  background:#fff;border:1px solid var(--ky-line);border-radius:var(--ky-r-sm);cursor:pointer;
}
.ky-burger span{
  position:absolute;left:50%;top:50%;width:16px;height:1.5px;
  background:var(--ky-ink);transform:translate(-50%,-50%);
  transition:transform .24s var(--ky-ease);
}
.ky-burger span::before,.ky-burger span::after{
  content:"";position:absolute;left:0;width:16px;height:1.5px;
  background:var(--ky-ink);transition:transform .24s var(--ky-ease);
}
.ky-burger span::before{top:-5px;}
.ky-burger span::after{top:5px;}

/* 按钮 */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;border-radius:var(--ky-r-sm);
  cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ky-ease),color .24s var(--ky-ease),
             border-color .24s var(--ky-ease),transform .24s var(--ky-ease),
             box-shadow .24s var(--ky-ease);
}
.ky-btn-primary{background:var(--ky-amber);color:#fff;}
.ky-btn-primary:hover{background:var(--ky-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(217,123,52,.8);}
.ky-btn-ghost{background:transparent;border-color:var(--ky-ink);color:var(--ky-ink);}
.ky-btn-ghost:hover{background:var(--ky-ink);color:var(--ky-bg);transform:translateY(-1px);}
.ky-btn-sm{padding:8px 18px;font-size:14px;}

/* 面包屑 */
.ky-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:26px;font-size:13px;color:var(--ky-muted);
}
.ky-breadcrumb a{color:var(--ky-muted);transition:color .24s var(--ky-ease);}
.ky-breadcrumb a:hover{color:var(--ky-celadon);}
.ky-breadcrumb .ky-crumb-sep{color:#BCC1BD;}
.ky-breadcrumb .ky-crumb-current{color:var(--ky-ink);font-weight:600;}

/* 分类首屏 */
.ky-cat-hero{padding:34px 0 92px;}
.ky-cat-hero-grid{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:64px;align-items:center;margin-top:44px;
}
.ky-eyebrow{
  display:inline-block;margin-bottom:20px;
  font-size:12px;font-weight:700;letter-spacing:.22em;
  color:var(--ky-celadon);text-transform:uppercase;
}
.ky-cat-hero h1{
  font-family:var(--ky-serif);font-size:42px;line-height:1.22;
  letter-spacing:-.01em;margin-bottom:22px;
}
.ky-lede{font-size:17px;line-height:1.9;color:var(--ky-muted);max-width:34em;}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 26px;}
.ky-hero-points li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:15px;color:var(--ky-muted);
}
.ky-hero-points li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:1.5px;background:var(--ky-celadon);
}
.ky-cat-hero-media{position:relative;}
.ky-cat-hero-media::after{
  content:"";position:absolute;left:16px;top:16px;right:-16px;bottom:-16px;
  border:1px solid rgba(217,123,52,.55);border-radius:var(--ky-r-img);
  pointer-events:none;
}
.ky-cat-hero-media img{
  position:relative;z-index:1;width:100%;aspect-ratio:4/3;
  object-fit:cover;border-radius:var(--ky-r-img);
  background:var(--ky-line);box-shadow:var(--ky-shadow-2);
}

/* 数据条 */
.ky-stats-band{border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line);}
.ky-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  padding:44px 0;
}
.ky-stat{padding:0 28px;border-left:1px solid var(--ky-line);}
.ky-stat:first-child{border-left:0;padding-left:0;}
.ky-stat-num{
  font-family:var(--ky-serif);font-size:30px;font-weight:700;
  color:var(--ky-ink);font-variant-numeric:tabular-nums;line-height:1.3;
}
.ky-stat-num em{font-style:normal;color:var(--ky-amber);font-size:30px;}
.ky-stat-label{font-size:13px;color:var(--ky-muted);line-height:1.7;}

/* 通用区块 */
.ky-section{padding:92px 0;}
.ky-section-head{max-width:720px;margin-bottom:56px;}
.ky-section-head h2{
  font-family:var(--ky-serif);font-size:30px;line-height:1.32;
  letter-spacing:-.01em;margin-bottom:16px;
}
.ky-section-head p{font-size:16px;line-height:1.9;color:var(--ky-muted);}

/* 图文交错 */
.ky-split-list{display:flex;flex-direction:column;gap:92px;}
.ky-split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:60px;align-items:center;
}
.ky-split.is-flip .ky-split-media{order:2;}
.ky-split-media{
  overflow:hidden;border-radius:var(--ky-r-img);
  background:var(--ky-line);box-shadow:var(--ky-shadow-1);
}
.ky-split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  transition:transform .32s var(--ky-ease);
}
.ky-split-media:hover img{transform:scale(1.03);}
.ky-split-body .ky-step{
  display:block;margin-bottom:14px;
  font-family:var(--ky-serif);font-size:13px;font-weight:700;
  letter-spacing:.2em;color:var(--ky-celadon);
}
.ky-split-body h3{
  font-family:var(--ky-serif);font-size:22px;line-height:1.45;
  margin-bottom:16px;
}
.ky-split-body p{font-size:16px;line-height:1.9;color:var(--ky-muted);}
.ky-check{margin-top:22px;border-top:1px solid var(--ky-line);padding-top:18px;}
.ky-check li{
  position:relative;padding-left:22px;margin-bottom:10px;
  font-size:15px;color:var(--ky-text);
}
.ky-check li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:10px;height:10px;border:1.5px solid var(--ky-celadon);
  border-radius:2px;
}

/* 场景标签 */
.ky-scene{background:var(--ky-surface);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line);}
.ky-scene-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:60px;align-items:start;}
.ky-scene-grid h2{font-family:var(--ky-serif);font-size:28px;line-height:1.35;margin-bottom:16px;}
.ky-scene-grid p{font-size:15px;line-height:1.9;color:var(--ky-muted);}
.ky-tags{display:flex;flex-wrap:wrap;gap:12px;}
.ky-tag{
  display:inline-flex;align-items:center;
  padding:9px 18px;font-size:14px;color:var(--ky-text);
  background:var(--ky-bg);border:1px solid var(--ky-line);
  border-radius:999px;transition:border-color .24s var(--ky-ease),
    background .24s var(--ky-ease),color .24s var(--ky-ease),transform .24s var(--ky-ease);
}
.ky-tag:hover{border-color:var(--ky-celadon);color:var(--ky-celadon);background:#fff;transform:translateY(-2px);}

/* 深色 CTA */
.ky-cta{
  position:relative;background:var(--ky-ink);color:#F7F7F5;
  padding:92px 0;overflow:hidden;
}
.ky-cta::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;
}
.ky-cta .ky-container{position:relative;z-index:1;}
.ky-cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:64px;align-items:start;}
.ky-cta h2{font-family:var(--ky-serif);font-size:30px;line-height:1.35;color:#F7F7F5;margin-bottom:18px;}
.ky-cta p{font-size:16px;line-height:1.9;color:rgba(247,247,245,.74);}
.ky-cta-meta{margin-top:30px;display:flex;flex-wrap:wrap;gap:28px;}
.ky-cta-meta div{font-size:13px;color:rgba(247,247,245,.6);}
.ky-cta-meta strong{display:block;font-family:var(--ky-serif);font-size:20px;color:#F7F7F5;font-weight:700;font-variant-numeric:tabular-nums;}
.ky-form{
  background:var(--ky-ink-2);border:1px solid rgba(247,247,245,.12);
  border-radius:var(--ky-r-md);padding:28px;
}
.ky-form-title{font-size:17px;font-weight:700;color:#F7F7F5;margin-bottom:6px;font-family:var(--ky-serif);}
.ky-form-sub{font-size:13px;color:rgba(247,247,245,.58);margin-bottom:22px;}
.ky-field{margin-bottom:16px;}
.ky-field label{display:block;margin-bottom:8px;font-size:13px;color:rgba(247,247,245,.72);}
.ky-field input,.ky-field select{
  width:100%;height:48px;padding:0 14px;font-size:15px;
  color:#F7F7F5;background:#161B21;
  border:1px solid rgba(247,247,245,.16);border-radius:var(--ky-r-img);
  outline:none;transition:border-color .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,rgba(247,247,245,.6) 50%),linear-gradient(135deg,rgba(247,247,245,.6) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.ky-field select option{color:#12161B;}
.ky-field input::placeholder{color:rgba(247,247,245,.36);}
.ky-field input:focus,.ky-field select:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px rgba(217,123,52,.22);}
.ky-form .ky-btn{width:100%;margin-top:8px;}
.ky-form-note{margin-top:14px;font-size:13px;line-height:1.7;color:rgba(247,247,245,.5);}

/* FAQ */
.ky-faq-wrap{max-width:840px;}
.ky-faq{border-top:1px solid var(--ky-line);}
.ky-faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--ky-line);}
.ky-faq .accordion-button{
  position:relative;width:100%;padding:24px 44px 24px 0;
  background:transparent;border:0;box-shadow:none;
  font-family:var(--ky-serif);font-size:17px;font-weight:700;line-height:1.6;
  color:var(--ky-ink);text-align:left;cursor:pointer;
}
.ky-faq .accordion-button:not(.collapsed){color:var(--ky-celadon);background:transparent;box-shadow:none;}
.ky-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--ky-amber);outline-offset:-2px;}
.ky-faq .accordion-button::after{display:none;}
.ky-faq-mark{
  position:absolute;right:6px;top:50%;width:14px;height:14px;
  transform:translateY(-50%);
}
.ky-faq-mark::before,.ky-faq-mark::after{
  content:"";position:absolute;background:var(--ky-celadon);
  border-radius:2px;transition:opacity .24s var(--ky-ease),transform .24s var(--ky-ease);
}
.ky-faq-mark::before{left:0;top:6.25px;width:14px;height:1.5px;}
.ky-faq-mark::after{left:6.25px;top:0;width:1.5px;height:14px;}
.ky-faq .accordion-button:not(.collapsed) .ky-faq-mark::after{opacity:0;transform:rotate(90deg);}
.ky-faq .accordion-body{padding:0 44px 26px 0;font-size:15px;line-height:1.9;color:var(--ky-muted);}

/* 页脚 */
.ky-footer{background:var(--ky-ink);color:#F7F7F5;padding:76px 0 0;}
.ky-footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:44px;padding-bottom:52px;
}
.ky-footer .ky-logo{color:#F7F7F5;margin-bottom:16px;}
.ky-footer .ky-logo-en{color:#9BB5AC;}
.ky-footer-desc{font-size:14px;line-height:1.9;color:rgba(247,247,245,.62);max-width:34em;}
.ky-footer-col h4{
  font-family:var(--ky-serif);font-size:15px;font-weight:700;
  color:#F7F7F5;margin-bottom:18px;
}
.ky-footer-links{display:flex;flex-direction:column;gap:11px;}
.ky-footer-links a{
  font-size:14px;color:rgba(247,247,245,.66);
  transition:color .24s var(--ky-ease),transform .24s var(--ky-ease);
  display:inline-block;
}
.ky-footer-links a:hover{color:var(--ky-amber);transform:translateX(2px);}
.ky-footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;border-top:1px solid rgba(247,247,245,.12);
  font-size:13px;color:rgba(247,247,245,.48);
}

/* 滚动显现 */
.ky-reveal{opacity:0;transform:translateY(8px);transition:opacity .55s var(--ky-ease),transform .55s var(--ky-ease);}
.ky-reveal.is-in{opacity:1;transform:none;}

/* 锚点偏移 */
#kySignup,#kyPlanFaq{scroll-margin-top:88px;}

/* 响应式 */
@media (max-width:1199px){
  .ky-cat-hero h1{font-size:36px;}
  .ky-cat-hero-grid{gap:48px;}
  .ky-split{gap:44px;}
  .ky-split-list{gap:72px;}
  .ky-cta-grid{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:48px;}
}
@media (max-width:991px){
  .ky-container{padding:0 24px;}
  .ky-menu{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 24px 32px;background:var(--ky-bg);
    border-top:1px solid var(--ky-line);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .28s var(--ky-ease),transform .28s var(--ky-ease),visibility .28s;
    overflow-y:auto;z-index:90;
  }
  .ky-menu.is-open{opacity:1;visibility:visible;transform:none;}
  .ky-nav-link{font-size:17px;padding:16px 0;border-bottom:1px solid var(--ky-line);}
  .ky-nav-link::after{display:none;}
  .ky-burger{display:block;}
  .ky-search span{display:none;}
  .ky-search-bar{display:none;}
  .ky-cat-hero{padding:26px 0 68px;}
  .ky-cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:40px;margin-top:32px;}
  .ky-cat-hero-media::after{display:none;}
  .ky-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0;padding:36px 0;}
  .ky-stat:nth-child(3){border-left:0;padding-left:0;}
  .ky-section{padding:68px 0;}
  .ky-section-head{margin-bottom:40px;}
  .ky-split{grid-template-columns:minmax(0,1fr);gap:28px;}
  .ky-split.is-flip .ky-split-media{order:0;}
  .ky-split-list{gap:60px;}
  .ky-scene-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .ky-cta{padding:68px 0;}
  .ky-cta-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .ky-footer{padding:60px 0 0;}
  .ky-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;padding-bottom:40px;}
}
@media (max-width:767px){
  .ky-container{padding:0 20px;}
  .ky-nav-left{gap:20px;}
  .ky-logo{font-size:20px;}
  .ky-cat-hero h1{font-size:29px;line-height:1.3;}
  .ky-lede{font-size:16px;}
  .ky-hero-actions{gap:12px;}
  .ky-hero-actions .ky-btn{flex:1 1 100%;}
  .ky-section-head h2{font-size:24px;}
  .ky-split-body h3{font-size:19px;}
  .ky-section{padding:56px 0;}
  .ky-faq .accordion-button{font-size:16px;padding:20px 38px 20px 0;}
  .ky-faq .accordion-body{padding:0 0 22px;}
  .ky-form{padding:22px;}
  .ky-footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .ky-footer-bottom{flex-direction:column;gap:6px;}
  .ky-cta h2{font-size:24px;}
  .ky-footer-links a{font-size:14px;}
}
@media (max-width:575px){
  .ky-stats{grid-template-columns:minmax(0,1fr);gap:0;}
  .ky-stat{border-left:0;padding:16px 0;border-top:1px solid var(--ky-line);}
  .ky-stat:first-child{border-top:0;padding-top:0;}
  .ky-stat:last-child{padding-bottom:0;}
  .ky-cat-hero h1{font-size:26px;}
  .ky-cta-meta{gap:18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .ky-reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ky-ink:#12161B;
  --ky-ink-2:#1E242B;
  --ky-celadon:#5F7A72;
  --ky-celadon-soft:#EDF1EF;
  --ky-amber:#D97B34;
  --ky-amber-dark:#C06A28;
  --ky-bg:#F7F7F5;
  --ky-surface:#FFFFFF;
  --ky-line:#E4E5E2;
  --ky-text:#12161B;
  --ky-muted:#5A6169;
  --ky-r-btn:6px;
  --ky-r-card:10px;
  --ky-r-img:8px;
  --ky-r-badge:4px;
  --ky-sh-1:0 1px 2px rgba(18,22,27,.04);
  --ky-sh-2:0 12px 32px -16px rgba(18,22,27,.16);
  --ky-sh-3:0 18px 40px -18px rgba(18,22,27,.24);
  --ky-ease:cubic-bezier(.22,1,.36,1);
  --ky-serif:"Noto Serif SC","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ky-bg);
  color:var(--ky-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .24s var(--ky-ease)}
a:hover{color:var(--ky-celadon)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--ky-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--ky-ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}
.ky-container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.ky-num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.ky-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(247,247,245,.92);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ky-ease),border-color .28s var(--ky-ease),box-shadow .28s var(--ky-ease);
}
.ky-header.is-stuck{
  position:fixed;
  background:rgba(247,247,245,.94);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--ky-line);
  box-shadow:var(--ky-sh-1);
}
.ky-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
  transition:height .28s var(--ky-ease);
}
.ky-header.is-stuck .ky-nav{height:56px}
.ky-nav-left{display:flex;align-items:center;gap:36px;min-width:0}
.ky-logo{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  font-family:var(--ky-serif);
  font-weight:700;
  font-size:21px;
  letter-spacing:.02em;
  color:var(--ky-ink);
  white-space:nowrap;
}
.ky-logo-en{
  font-family:-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:13px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ky-celadon);
}
.ky-menu{display:flex;align-items:center;gap:28px}
.ky-nav-link{
  position:relative;
  font-size:15px;
  color:var(--ky-muted);
  padding:6px 0;
}
.ky-nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--ky-amber);
  transition:width .26s var(--ky-ease);
}
.ky-nav-link:hover{color:var(--ky-ink)}
.ky-nav-link:hover::after{width:100%}
.ky-nav-link.is-active{color:var(--ky-ink);font-weight:700}
.ky-nav-link.is-active::after{width:100%}
.ky-nav-right{display:flex;align-items:center;gap:14px}
.ky-search-bar{
  width:0;
  overflow:hidden;
  opacity:0;
  transition:width .3s var(--ky-ease),opacity .3s var(--ky-ease);
}
.ky-search-bar.is-open{width:180px;opacity:1}
.ky-search-bar input{
  width:100%;
  height:36px;
  border:none;
  border-bottom:1px solid var(--ky-line);
  background:transparent;
  font-size:14px;
  padding:0 2px;
}
.ky-search-bar input:focus{outline:none;border-color:var(--ky-amber)}
.ky-search{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:none;
  border:none;
  padding:6px 2px;
  font-size:14px;
  color:var(--ky-muted);
  cursor:pointer;
  transition:color .24s var(--ky-ease);
}
.ky-search:hover{color:var(--ky-ink)}
.ky-search svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.ky-burger{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-btn);
  background:var(--ky-surface);
  position:relative;
  cursor:pointer;
}
.ky-burger span,
.ky-burger span::before,
.ky-burger span::after{
  position:absolute;
  left:50%;top:50%;
  width:16px;height:1.6px;
  background:var(--ky-ink);
  transform:translate(-50%,-50%);
  transition:transform .24s var(--ky-ease),opacity .24s var(--ky-ease);
}
.ky-burger span::before{content:"";top:-5px}
.ky-burger span::after{content:"";top:5px}
.ky-burger.is-open span{background:transparent}
.ky-burger.is-open span::before{transform:translate(-50%,-50%) rotate(45deg);top:0}
.ky-burger.is-open span::after{transform:translate(-50%,-50%) rotate(-45deg);top:0}

/* ---------- buttons ---------- */
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--ky-r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .24s var(--ky-ease),color .24s var(--ky-ease),border-color .24s var(--ky-ease),transform .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-btn-sm{height:38px;padding:0 18px;font-size:14px}
.ky-btn-primary{background:var(--ky-amber);color:#fff}
.ky-btn-primary:hover{background:var(--ky-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(217,123,52,.9)}
.ky-btn-ghost{background:transparent;color:var(--ky-ink);border-color:var(--ky-ink)}
.ky-btn-ghost:hover{background:var(--ky-ink);color:#F7F7F5;transform:translateY(-1px)}
.ky-btn-light{background:transparent;color:#F7F7F5;border-color:rgba(247,247,245,.4)}
.ky-btn-light:hover{background:#F7F7F5;color:var(--ky-ink)}
.ky-link{
  font-size:14px;
  color:var(--ky-celadon);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  text-underline-offset:4px;
}
.ky-link:hover{border-color:var(--ky-celadon);color:var(--ky-celadon)}
.ky-badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 9px;
  border-radius:var(--ky-r-badge);
  background:var(--ky-celadon-soft);
  color:var(--ky-celadon);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.ky-badge-amber{background:rgba(217,123,52,.12);color:var(--ky-amber-dark)}

/* ---------- breadcrumb ---------- */
.ky-crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ky-muted);
}
.ky-crumb a{color:var(--ky-muted)}
.ky-crumb a:hover{color:var(--ky-ink)}
.ky-crumb .sep{color:#B9BDBA}
.ky-crumb .current{color:var(--ky-ink);font-weight:600}

/* ---------- hero ---------- */
.ky-hero{
  padding:132px 0 84px;
  background:
    radial-gradient(1100px 420px at 88% -10%, rgba(95,122,114,.10), transparent 70%),
    var(--ky-bg);
  border-bottom:1px solid var(--ky-line);
}
.ky-hero-grid{
  display:grid;
  grid-template-columns:5fr 6fr;
  gap:56px;
  align-items:end;
}
.ky-eyebrow{
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--ky-celadon);
  font-weight:700;
  margin-bottom:16px;
}
.ky-hero h1{
  font-size:42px;
  margin-bottom:18px;
}
.ky-hero-sub{
  font-size:16px;
  line-height:1.85;
  color:var(--ky-muted);
  max-width:520px;
  margin-bottom:28px;
}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.ky-hero-points{display:flex;flex-direction:column;gap:10px}
.ky-hero-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--ky-muted);
}
.ky-hero-points li::before{
  content:"";
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--ky-amber);
  flex:0 0 auto;
}
.ky-hero-media{position:relative}
.ky-hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--ky-r-img);
  background:#E4E5E2;
  box-shadow:var(--ky-sh-2);
}
.ky-hero-media::after{
  content:"";
  position:absolute;
  left:12px;bottom:-12px;
  width:120px;height:120px;
  border-left:1px solid var(--ky-amber);
  border-bottom:1px solid var(--ky-amber);
  border-radius:0 0 0 2px;
  pointer-events:none;
}

/* ---------- sections ---------- */
.ky-section{padding:92px 0}
.ky-section-alt{background:var(--ky-surface);border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line)}
.ky-sec-head{max-width:720px;margin-bottom:48px}
.ky-sec-head h2{font-size:29px;margin-bottom:14px}
.ky-sec-head p{font-size:15px;color:var(--ky-muted)}
.ky-sec-kicker{
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--ky-celadon);
  font-weight:700;
  margin-bottom:12px;
}

/* ---------- highlight wall ---------- */
.ky-wall{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:36px 32px;
}
.ky-card{
  position:relative;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);
  background:var(--ky-surface);
  overflow:hidden;
  transition:transform .3s var(--ky-ease),border-color .3s var(--ky-ease),box-shadow .3s var(--ky-ease);
}
.ky-card:hover{
  transform:translateY(-4px);
  border-color:var(--ky-celadon);
  box-shadow:var(--ky-sh-3);
}
.ky-wall .ky-card:nth-child(even){margin-top:56px}
.ky-card-media{position:relative;overflow:hidden;background:#E4E5E2}
.ky-card:nth-child(3n+1) .ky-card-media img{aspect-ratio:4/3}
.ky-card:nth-child(3n+2) .ky-card-media img{aspect-ratio:16/11}
.ky-card:nth-child(3n+3) .ky-card-media img{aspect-ratio:16/10}
.ky-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ky-ease);
}
.ky-card:hover .ky-card-media img{transform:scale(1.03)}
.ky-card-veil{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:8px;
  padding:28px;
  background:linear-gradient(180deg,rgba(18,22,27,0) 30%,rgba(18,22,27,.86) 100%);
  opacity:0;
  transition:opacity .32s var(--ky-ease);
}
.ky-card:hover .ky-card-veil{opacity:1}
.ky-card-veil h3{
  color:#fff;
  font-size:19px;
  line-height:1.4;
}
.ky-card-veil p{
  color:rgba(247,247,245,.78);
  font-size:14px;
  line-height:1.75;
}
.ky-card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 24px;
}
.ky-card-foot .date{font-size:13px;color:var(--ky-muted);font-variant-numeric:tabular-nums}
.ky-card-foot .cat{font-size:13px;color:var(--ky-celadon);font-weight:600}

/* ---------- stats ---------- */
.ky-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--ky-line);
  border-left:1px solid var(--ky-line);
}
.ky-stat{
  padding:32px 26px;
  border-right:1px solid var(--ky-line);
  border-bottom:1px solid var(--ky-line);
  background:var(--ky-surface);
}
.ky-stat b{
  display:block;
  font-family:var(--ky-serif);
  font-size:38px;
  line-height:1.1;
  color:var(--ky-amber);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.ky-stat span{font-size:14px;color:var(--ky-muted)}

/* ---------- quotes ---------- */
.ky-quotes{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.ky-quote{
  padding:28px;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-card);
  background:var(--ky-surface);
  box-shadow:var(--ky-sh-1);
  transition:border-color .28s var(--ky-ease),transform .28s var(--ky-ease);
}
.ky-quote:hover{border-color:var(--ky-celadon);transform:translateY(-3px)}
.ky-quote p{
  font-size:15px;
  line-height:1.9;
  color:var(--ky-text);
  border-left:2px solid var(--ky-celadon);
  padding-left:16px;
  margin-bottom:20px;
}
.ky-quote-who{display:flex;align-items:center;gap:12px}
.ky-avatar{
  width:40px;height:40px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--ky-ink);
  color:#F7F7F5;
  font-size:14px;
  font-weight:700;
  font-family:var(--ky-serif);
  flex:0 0 auto;
}
.ky-quote-who b{display:block;font-size:14px;font-weight:700}
.ky-quote-who span{font-size:13px;color:var(--ky-muted)}

/* ---------- dark cta ---------- */
.ky-cta{
  background:var(--ky-ink);
  color:#F7F7F5;
  padding:88px 0;
}
.ky-cta-grid{
  display:grid;
  grid-template-columns:5fr 5fr;
  gap:56px;
  align-items:start;
}
.ky-cta h2{color:#F7F7F5;font-size:30px;margin-bottom:16px}
.ky-cta .lead{color:rgba(247,247,245,.7);font-size:15px;line-height:1.9;margin-bottom:24px}
.ky-cta-list{display:flex;flex-direction:column;gap:12px}
.ky-cta-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:rgba(247,247,245,.72);
}
.ky-cta-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--ky-amber);margin-top:9px;flex:0 0 auto;
}
.ky-form{
  background:var(--ky-ink-2);
  border:1px solid rgba(247,247,245,.1);
  border-radius:var(--ky-r-card);
  padding:28px;
}
.ky-field{margin-bottom:18px}
.ky-field label{
  display:block;
  font-size:13px;
  color:rgba(247,247,245,.68);
  margin-bottom:8px;
}
.ky-field input,
.ky-field select{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:8px;
  border:1px solid rgba(247,247,245,.18);
  background:rgba(18,22,27,.6);
  color:#F7F7F5;
  font-size:15px;
  transition:border-color .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-field input::placeholder{color:rgba(247,247,245,.35)}
.ky-field input:focus,
.ky-field select:focus{
  outline:none;
  border-color:var(--ky-amber);
  box-shadow:0 0 0 3px rgba(217,123,52,.18);
}
.ky-form .ky-btn{width:100%}
.ky-form-note{
  margin-top:12px;
  font-size:13px;
  color:rgba(247,247,245,.5);
  line-height:1.7;
}

/* ---------- faq ---------- */
.ky-faq{max-width:900px;margin:0 auto;border-top:1px solid var(--ky-line)}
.ky-faq-item{border-bottom:1px solid var(--ky-line)}
.ky-faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 0;
  background:none;
  border:none;
  text-align:left;
  font-family:var(--ky-serif);
  font-size:17px;
  font-weight:700;
  color:var(--ky-ink);
  cursor:pointer;
  transition:color .24s var(--ky-ease);
}
.ky-faq-q:hover{color:var(--ky-celadon)}
.ky-faq-q .ico{
  position:relative;
  width:18px;height:18px;
  flex:0 0 auto;
}
.ky-faq-q .ico::before,
.ky-faq-q .ico::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:14px;height:1.6px;
  background:var(--ky-amber);
  transform:translate(-50%,-50%);
  transition:transform .24s var(--ky-ease),opacity .24s var(--ky-ease);
}
.ky-faq-q .ico::after{transform:translate(-50%,-50%) rotate(90deg)}
.ky-faq-q[aria-expanded="true"] .ico::after{transform:translate(-50%,-50%) rotate(0);opacity:0}
.ky-faq-a{
  padding:0 0 26px;
  font-size:15px;
  line-height:1.9;
  color:var(--ky-muted);
  max-width:760px;
}

/* ---------- footer ---------- */
.ky-footer{
  background:var(--ky-ink);
  color:#F7F7F5;
  padding:72px 0 28px;
}
.ky-footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(247,247,245,.12);
}
.ky-footer .ky-logo{color:#F7F7F5;font-size:20px}
.ky-footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:rgba(247,247,245,.6);
  max-width:340px;
}
.ky-footer-col h4{
  color:#F7F7F5;
  font-size:15px;
  margin-bottom:18px;
}
.ky-footer-links{display:flex;flex-direction:column;gap:11px}
.ky-footer-links a{
  font-size:14px;
  color:rgba(247,247,245,.62);
}
.ky-footer-links a:hover{color:var(--ky-amber)}
.ky-footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  padding-top:24px;
  font-size:13px;
  color:rgba(247,247,245,.45);
}

/* ---------- reveal ---------- */
.ky-reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ky-ease),transform .5s var(--ky-ease)}
.ky-reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .ky-hero-grid{grid-template-columns:1fr;gap:40px}
  .ky-hero h1{font-size:36px}
  .ky-cta-grid{grid-template-columns:1fr;gap:36px}
  .ky-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ky-quotes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ky-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .ky-container{padding:0 24px}
  .ky-burger{display:block}
  .ky-menu{
    position:fixed;
    inset:64px 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:24px;
    background:rgba(247,247,245,.98);
    backdrop-filter:blur(8px);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .26s var(--ky-ease),transform .26s var(--ky-ease);
    z-index:55;
  }
  .ky-menu.is-open{opacity:1;transform:none;pointer-events:auto}
  .ky-nav-link{
    font-size:17px;
    padding:16px 0;
    border-bottom:1px solid var(--ky-line);
    color:var(--ky-ink);
  }
  .ky-search-bar{display:none}
  .ky-hero{padding:112px 0 64px}
  .ky-section{padding:68px 0}
  .ky-wall{grid-template-columns:1fr;gap:28px}
  .ky-wall .ky-card:nth-child(even){margin-top:0}
  .ky-card-veil{opacity:1;background:linear-gradient(180deg,rgba(18,22,27,0) 35%,rgba(18,22,27,.88) 100%)}
  .ky-faq-q{font-size:16px}
  .ky-cta{padding:68px 0}
}
@media (max-width:767px){
  .ky-quotes{grid-template-columns:1fr}
  .ky-stats{grid-template-columns:1fr}
  .ky-hero h1{font-size:30px}
  .ky-sec-head h2{font-size:24px}
  .ky-cta h2{font-size:24px}
  .ky-footer-grid{grid-template-columns:1fr;gap:32px}
  .ky-stat b{font-size:32px}
}
@media (max-width:520px){
  .ky-container{padding:0 20px}
  .ky-nav-left{gap:16px}
  .ky-logo{font-size:19px}
  .ky-nav-right .ky-btn-sm{display:none}
  .ky-hero{padding:100px 0 56px}
  .ky-hero-actions .ky-btn{width:100%}
  .ky-card-foot{flex-direction:column;align-items:flex-start;gap:6px}
  .ky-card-veil{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .ky-reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --ky-ink:#12161B;
  --ky-ink-2:#1E242B;
  --ky-celadon:#5F7A72;
  --ky-celadon-08:rgba(95,122,114,.08);
  --ky-celadon-16:rgba(95,122,114,.16);
  --ky-amber:#D97B34;
  --ky-amber-dark:#C06A28;
  --ky-amber-14:rgba(217,123,52,.14);
  --ky-bg:#F7F7F5;
  --ky-surface:#FFFFFF;
  --ky-line:#E4E5E2;
  --ky-text:#12161B;
  --ky-muted:#5A6169;
  --ky-r-xs:4px;
  --ky-r-sm:6px;
  --ky-r-md:10px;
  --ky-r-img:8px;
  --ky-sh-1:0 1px 2px rgba(18,22,27,.04);
  --ky-sh-2:0 12px 32px -16px rgba(18,22,27,.16);
  --ky-ease:cubic-bezier(.22,1,.36,1);
  --ky-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --ky-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;

  --bs-body-bg:#F7F7F5;
  --bs-body-color:#12161B;
  --bs-border-color:#E4E5E2;
  --bs-link-color:#12161B;
  --bs-link-hover-color:#C06A28;
  --bs-primary:#D97B34;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--ky-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ky-text);
  background:var(--ky-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .24s var(--ky-ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--ky-serif);font-weight:700;letter-spacing:-.01em;line-height:1.25;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--ky-amber);color:#fff}
:focus-visible{outline:2px solid var(--ky-amber);outline-offset:2px}

/* ===================== 容器 ===================== */
.ky-container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}
.ky-section{padding:88px 0}
.ky-section--alt{background:#FFFFFF;border-top:1px solid var(--ky-line);border-bottom:1px solid var(--ky-line)}
.ky-section-head{max-width:720px;margin-bottom:44px}
.ky-eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--ky-celadon);
  font-weight:600;
  margin-bottom:14px;
  text-transform:uppercase;
}
.ky-h2{font-size:28px;margin-bottom:16px}
.ky-h3{font-size:18px;margin-bottom:10px}
.ky-lead{font-size:16px;color:var(--ky-muted);line-height:1.9}
.ky-small{font-size:13px;color:var(--ky-muted)}
.ky-num{font-variant-numeric:tabular-nums}

/* ===================== 按钮 ===================== */
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--ky-r-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:background .24s var(--ky-ease),color .24s var(--ky-ease),border-color .24s var(--ky-ease),transform .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-btn-sm{height:38px;padding:0 16px;font-size:14px}
.ky-btn-primary{background:var(--ky-amber);color:#fff}
.ky-btn-primary:hover{background:var(--ky-amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--ky-sh-2)}
.ky-btn-primary:active{transform:translateY(0)}
.ky-btn-ghost{border-color:var(--ky-ink);color:var(--ky-ink);background:transparent}
.ky-btn-ghost:hover{background:var(--ky-ink);color:#F7F7F5;transform:translateY(-1px)}
.ky-btn-light{border-color:rgba(247,247,245,.4);color:#F7F7F5;background:transparent}
.ky-btn-light:hover{background:#F7F7F5;color:var(--ky-ink);border-color:#F7F7F5}
.ky-btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--ky-amber-14),0 0 0 2px var(--ky-amber)}

/* ===================== 导航 ===================== */
.ky-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,247,245,.94);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ky-ease),box-shadow .28s var(--ky-ease);
}
.ky-header.is-stuck{border-bottom-color:var(--ky-line);box-shadow:var(--ky-sh-1)}
.ky-nav{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  height:64px;
  gap:24px;
  transition:height .28s var(--ky-ease);
}
.ky-header.is-stuck .ky-nav{height:56px}
.ky-nav-left{display:flex;align-items:center;gap:36px;min-width:0}
.ky-nav-right{display:flex;align-items:center;gap:14px;justify-content:flex-end}

.ky-logo{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  font-family:var(--ky-serif);
  font-weight:700;
  font-size:20px;
  color:var(--ky-ink);
  letter-spacing:.01em;
  flex:none;
}
.ky-logo-en{
  font-family:var(--ky-sans);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--ky-celadon);
  text-transform:lowercase;
}
.ky-menu{display:flex;align-items:center;gap:30px}
.ky-nav-link{
  position:relative;
  font-size:15px;
  color:var(--ky-text);
  padding:6px 0;
  font-weight:500;
}
.ky-nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--ky-amber);
  transition:width .28s var(--ky-ease);
}
.ky-nav-link:hover{color:var(--ky-ink)}
.ky-nav-link:hover::after,.ky-nav-link.is-active::after{width:100%}
.ky-nav-link.is-active{font-weight:700}

.ky-search{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:none;
  border:0;
  padding:6px 2px;
  font-size:14px;
  color:var(--ky-muted);
  cursor:pointer;
  transition:color .24s var(--ky-ease);
}
.ky-search:hover{color:var(--ky-ink)}
.ky-search svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.ky-search-bar{
  width:0;
  overflow:hidden;
  transition:width .32s var(--ky-ease);
}
.ky-search-bar.is-open{width:200px}
.ky-search-bar input{
  width:100%;
  height:36px;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-sm);
  background:#fff;
  padding:0 12px;
  font-size:14px;
  outline:none;
  transition:border-color .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-search-bar input::placeholder{color:#9AA1A8}
.ky-search-bar input:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px var(--ky-amber-14)}

.ky-burger{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-sm);
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.ky-burger span{
  display:block;
  width:16px;height:1.6px;
  background:var(--ky-ink);
  position:relative;
}
.ky-burger span::before,.ky-burger span::after{
  content:"";
  position:absolute;left:0;
  width:16px;height:1.6px;
  background:var(--ky-ink);
}
.ky-burger span::before{top:-5px}
.ky-burger span::after{top:5px}

/* 移动端抽屉 */
.ky-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:rgba(18,22,27,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s var(--ky-ease),visibility .28s var(--ky-ease);
}
.ky-drawer.is-open{opacity:1;visibility:visible}
.ky-drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(340px,86vw);
  height:100%;
  background:var(--ky-bg);
  padding:22px 24px 32px;
  display:flex;
  flex-direction:column;
  transform:translateX(16px);
  transition:transform .32s var(--ky-ease);
}
.ky-drawer.is-open .ky-drawer-panel{transform:translateX(0)}
.ky-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--ky-line)}
.ky-drawer-close{
  width:38px;height:38px;border:1px solid var(--ky-line);border-radius:var(--ky-r-sm);
  background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--ky-muted);
}
.ky-drawer-menu{display:flex;flex-direction:column;padding:12px 0 0}
.ky-drawer-menu a{
  padding:15px 0;
  border-bottom:1px solid var(--ky-line);
  font-size:16px;
  color:var(--ky-text);
}
.ky-drawer-menu a.is-active{color:var(--ky-amber);font-weight:700}
.ky-drawer-menu a:hover{color:var(--ky-amber)}
.ky-drawer-foot{margin-top:auto;padding-top:24px}

/* ===================== 首屏 ===================== */
.ky-hero{padding:52px 0 72px;background:var(--ky-bg)}
.ky-crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ky-muted);
  margin-bottom:30px;
  flex-wrap:wrap;
}
.ky-crumb a{color:var(--ky-muted)}
.ky-crumb a:hover{color:var(--ky-amber)}
.ky-crumb .sep{color:#B9BEBA}
.ky-crumb .current{color:var(--ky-ink);font-weight:600}

.ky-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
  gap:56px;
  align-items:center;
}
.ky-hero h1{font-size:40px;margin-bottom:20px}
.ky-hero-sub{font-size:16px;color:var(--ky-muted);line-height:1.9;max-width:520px;margin-bottom:30px}
.ky-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.ky-hero-points{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--ky-line);padding-top:26px}
.ky-hero-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ky-text)}
.ky-dot{
  flex:none;
  width:6px;height:6px;border-radius:50%;
  background:var(--ky-celadon);
  margin-top:11px;
}
.ky-hero-media{position:relative}
.ky-hero-media img{
  width:100%;
  height:420px;
  object-fit:cover;
  border-radius:var(--ky-r-md);
  background:#E4E5E2;
}
.ky-hero-card{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:#fff;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-md);
  box-shadow:var(--ky-sh-2);
  padding:18px 22px;
  min-width:196px;
}
.ky-hero-card strong{
  display:block;
  font-family:var(--ky-serif);
  font-size:26px;
  line-height:1.2;
  color:var(--ky-amber);
  font-variant-numeric:tabular-nums;
}
.ky-hero-card span{font-size:13px;color:var(--ky-muted)}

/* 数据条 */
.ky-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--ky-line);
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-md);
  overflow:hidden;
  margin-top:64px;
}
.ky-stat{background:#fff;padding:26px 24px}
.ky-stat-num{
  font-family:var(--ky-serif);
  font-size:30px;
  font-weight:700;
  color:var(--ky-ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  margin-bottom:6px;
}
.ky-stat-num em{font-style:normal;font-size:16px;margin-left:3px;color:var(--ky-celadon)}
.ky-stat-label{font-size:13px;color:var(--ky-muted)}

/* ===================== 锚点导航 ===================== */
.ky-anchor-strip{
  position:sticky;
  top:56px;
  z-index:60;
  background:rgba(247,247,245,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--ky-line);
}
.ky-anchor-strip-inner{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:12px 20px;
  scrollbar-width:none;
}
.ky-anchor-strip-inner::-webkit-scrollbar{display:none}
.ky-chip{
  flex:none;
  font-size:13px;
  padding:7px 14px;
  border:1px solid var(--ky-line);
  border-radius:999px;
  color:var(--ky-muted);
  background:#fff;
  white-space:nowrap;
  transition:border-color .24s var(--ky-ease),color .24s var(--ky-ease);
}
.ky-chip.is-current,.ky-chip:hover{border-color:var(--ky-amber);color:var(--ky-amber)}

.ky-aside{position:sticky;top:96px}
.ky-aside-title{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--ky-muted);
  margin-bottom:16px;
  font-weight:600;
}
.ky-anchor-list{display:flex;flex-direction:column;border-left:1px solid var(--ky-line)}
.ky-anchor{
  position:relative;
  display:block;
  font-size:14px;
  color:var(--ky-muted);
  padding:9px 0 9px 18px;
  transition:color .24s var(--ky-ease);
}
.ky-anchor::before{
  content:"";
  position:absolute;
  left:-1px;top:8px;bottom:8px;
  width:2px;
  background:transparent;
  transition:background .24s var(--ky-ease);
}
.ky-anchor:hover{color:var(--ky-ink)}
.ky-anchor.is-current{color:var(--ky-ink);font-weight:600}
.ky-anchor.is-current::before{background:var(--ky-amber)}

/* ===================== 时间轴 ===================== */
.ky-timeline{position:relative}
.ky-tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:24px;
  padding-bottom:34px;
}
.ky-tl-item:last-child{padding-bottom:0}
.ky-tl-item::before{
  content:"";
  position:absolute;
  left:31px;
  top:68px;
  bottom:0;
  width:1px;
  background:var(--ky-line);
}
.ky-tl-item:last-child::before{display:none}
.ky-tl-dot{
  width:64px;height:64px;
  border-radius:50%;
  border:1px solid var(--ky-line);
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--ky-serif);
  font-weight:700;
  font-size:18px;
  color:var(--ky-celadon);
  font-variant-numeric:tabular-nums;
  transition:border-color .28s var(--ky-ease),color .28s var(--ky-ease),box-shadow .28s var(--ky-ease);
}
.ky-tl-item.is-current .ky-tl-dot{border-color:var(--ky-amber);color:var(--ky-amber);box-shadow:0 0 0 5px var(--ky-amber-14)}
.ky-tl-body{
  background:#fff;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-md);
  padding:26px 28px;
  transition:border-color .28s var(--ky-ease),box-shadow .28s var(--ky-ease),transform .28s var(--ky-ease);
}
.ky-tl-body:hover{border-color:var(--ky-celadon);box-shadow:var(--ky-sh-2);transform:translateY(-2px)}
.ky-tl-title{font-size:19px;margin-bottom:10px}
.ky-tl-text{font-size:15px;color:var(--ky-muted);line-height:1.9;margin-bottom:14px}
.ky-tl-meta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ky-celadon);
  background:var(--ky-celadon-08);
  border-radius:var(--ky-r-xs);
  padding:4px 10px;
}

/* ===================== 双栏清单 ===================== */
.ky-two-col{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.ky-panel{
  background:#fff;
  border:1px solid var(--ky-line);
  border-radius:var(--ky-r-md);
  padding:30px 32px;
  height:100%;
}
.ky-panel-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--ky-serif);
  font-size:19px;
  font-weight:700;
  margin-bottom:20px;
}
.ky-panel-title .bar{width:3px;height:18px;background:var(--ky-amber);border-radius:2px}
.ky-check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:13px 0;
  border-bottom:1px solid var(--ky-line);
  font-size:15px;
  color:var(--ky-text);
}
.ky-check-list li:last-child{border-bottom:0}
.ky-check-mark{
  flex:none;
  width:18px;height:18px;
  margin-top:4px;
  border-radius:50%;
  border:1px solid var(--ky-celadon);
  position:relative;
}
.ky-check-mark::after{
  content:"";
  position:absolute;
  left:5px;top:4px;
  width:6px;height:3px;
  border-left:1.5px solid var(--ky-celadon);
  border-bottom:1.5px solid var(--ky-celadon);
  transform:rotate(-45deg);
}
.ky-warn-mark{
  flex:none;
  width:18px;height:18px;
  margin-top:4px;
  border-radius:50%;
  background:var(--ky-amber-14);
  color:var(--ky-amber);
  font-size:12px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}

/* ===================== 时间节点 ===================== */
.ky-timing-list{border-top:1px solid var(--ky-line)}
.ky-timing-row{
  display:grid;
  grid-template-columns:200px minmax(0,1fr) 180px;
  gap:24px;
  align-items:center;
  padding:24px 4px;
  border-bottom:1px solid var(--ky-line);
  transition:background .24s var(--ky-ease);
}
.ky-timing-row:hover{background:#fff}
.ky-timing-time{
  font-family:var(--ky-serif);
  font-size:18px;
  font-weight:700;
  color:var(--ky-ink);
  font-variant-numeric:tabular-nums;
}
.ky-timing-desc{font-size:15px;color:var(--ky-muted);line-height:1.85}
.ky-tag{
  justify-self:start;
  font-size:13px;
  padding:4px 10px;
  border-radius:var(--ky-r-xs);
  background:var(--ky-celadon-08);
  color:var(--ky-celadon);
  white-space:nowrap;
}
.ky-tag--amber{background:var(--ky-amber-14);color:var(--ky-amber-dark)}

/* ===================== FAQ ===================== */
.ky-faq{max-width:860px}
.ky-faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--ky-line);
}
.ky-faq .accordion-header{margin:0}
.ky-faq .accordion-button{
  background:transparent;
  box-shadow:none;
  padding:24px 44px 24px 0;
  font-family:var(--ky-serif);
  font-size:17px;
  font-weight:700;
  color:var(--ky-text);
  border-radius:0;
}
.ky-faq .accordion-button:hover{color:var(--ky-amber-dark)}
.ky-faq .accordion-button:not(.collapsed){color:var(--ky-ink);background:transparent;box-shadow:none}
.ky-faq .accordion-button:focus{box-shadow:none;outline:none}
.ky-faq .accordion-button:focus-visible{outline:2px solid var(--ky-amber);outline-offset:-2px}
.ky-faq .accordion-button::after{
  content:"";
  width:12px;height:12px;
  margin-right:6px;
  border-right:1.8px solid var(--ky-celadon);
  border-bottom:1.8px solid var(--ky-celadon);
  background-image:none;
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .24s var(--ky-ease),border-color .24s var(--ky-ease);
}
.ky-faq .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg) translate(-2px,-2px);
  border-color:var(--ky-amber);
}
.ky-faq .accordion-body{
  padding:0 64px 24px 0;
  font-size:15px;
  line-height:1.9;
  color:var(--ky-muted);
}

/* ===================== 咨询 CTA ===================== */
.ky-cta{background:var(--ky-ink);color:#F7F7F5;padding:80px 0}
.ky-cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,480px);
  gap:64px;
  align-items:start;
}
.ky-cta h2{font-size:30px;color:#fff;margin-bottom:16px}
.ky-cta .ky-lead{color:rgba(247,247,245,.72)}
.ky-cta-points{margin-top:30px;display:flex;flex-direction:column;gap:14px}
.ky-cta-points li{display:flex;gap:12px;font-size:15px;color:rgba(247,247,245,.85)}
.ky-cta-points .ky-dot{background:var(--ky-amber)}

.ky-form-card{
  background:var(--ky-ink-2);
  border:1px solid rgba(247,247,245,.12);
  border-radius:var(--ky-r-md);
  padding:32px;
}
.ky-form-card h3{font-size:19px;color:#fff;margin-bottom:6px}
.ky-form-card .ky-small{color:rgba(247,247,245,.6);margin-bottom:24px;display:block}
.ky-field{margin-bottom:18px}
.ky-label{display:block;font-size:13px;color:rgba(247,247,245,.66);margin-bottom:8px}
.ky-input,.ky-select{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:8px;
  border:1px solid rgba(247,247,245,.16);
  background:#171C22;
  color:#F7F7F5;
  outline:none;
  transition:border-color .24s var(--ky-ease),box-shadow .24s var(--ky-ease);
}
.ky-select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,rgba(247,247,245,.6) 50%),linear-gradient(135deg,rgba(247,247,245,.6) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.ky-input::placeholder{color:rgba(247,247,245,.35)}
.ky-input:focus,.ky-select:focus{border-color:var(--ky-amber);box-shadow:0 0 0 3px var(--ky-amber-14)}
.ky-form-note{font-size:13px;color:rgba(247,247,245,.5);margin-top:12px;line-height:1.7}
.ky-form-msg{
  display:none;
  margin-top:14px;
  font-size:13px;
  color:var(--ky-amber);
}
.ky-form-msg.is-show{display:block}

/* ===================== 页脚 ===================== */
.ky-footer{background:var(--ky-ink);color:rgba(247,247,245,.78);padding:72px 0 32px}
.ky-footer .ky-logo{color:#F7F7F5}
.ky-footer .ky-logo-en{color:var(--ky-amber)}
.ky-footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(247,247,245,.12);
}
.ky-footer-desc{font-size:14px;line-height:1.9;color:rgba(247,247,245,.6);margin-top:18px;max-width:320px}
.ky-footer-col h4{
  font-family:var(--ky-sans);
  font-size:14px;
  font-weight:600;
  color:#F7F7F5;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.ky-footer-links{display:flex;flex-direction:column;gap:12px}
.ky-footer-links a{font-size:14px;color:rgba(247,247,245,.62);transition:color .24s var(--ky-ease),padding-left .24s var(--ky-ease)}
.ky-footer-links a:hover{color:var(--ky-amber);padding-left:4px}
.ky-footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding-top:24px;
  font-size:13px;
  color:rgba(247,247,245,.5);
  flex-wrap:wrap;
}

/* ===================== 动效 ===================== */
.ky-reveal{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .55s var(--ky-ease),transform .55s var(--ky-ease);
}
.ky-reveal.is-in{opacity:1;transform:none}

/* ===================== 响应式 ===================== */
@media (max-width:1199.98px){
  .ky-hero h1{font-size:36px}
  .ky-hero-grid{gap:40px}
  .ky-cta-grid{gap:44px}
}

@media (max-width:991.98px){
  .ky-container{padding:0 20px}
  .ky-menu{display:none}
  .ky-burger{display:inline-flex}
  .ky-search span{display:none}
  .ky-search-bar.is-open{width:150px}
  .ky-hero-grid{grid-template-columns:1fr;gap:36px}
  .ky-hero-media img{height:320px}
  .ky-hero-card{left:16px;bottom:-18px}
  .ky-cta-grid{grid-template-columns:1fr}
  .ky-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .ky-timing-row{grid-template-columns:150px minmax(0,1fr);gap:16px}
  .ky-timing-row .ky-tag{grid-column:2;justify-self:start}
  .ky-aside{display:none}
}

@media (max-width:767.98px){
  .ky-section{padding:60px 0}
  .ky-hero{padding:32px 0 56px}
  .ky-hero h1{font-size:29px}
  .ky-h2{font-size:23px}
  .ky-stats{grid-template-columns:1fr 1fr;margin-top:48px}
  .ky-stat{padding:20px 18px}
  .ky-stat-num{font-size:24px}
  .ky-two-col{grid-template-columns:1fr}
  .ky-tl-item{grid-template-columns:46px minmax(0,1fr);gap:16px;padding-bottom:26px}
  .ky-tl-dot{width:46px;height:46px;font-size:15px}
  .ky-tl-item::before{left:22px;top:52px}
  .ky-tl-body{padding:22px 20px}
  .ky-tl-title{font-size:17px}
  .ky-timing-row{grid-template-columns:1fr;gap:8px;padding:20px 4px}
  .ky-timing-row .ky-tag{grid-column:1}
  .ky-panel{padding:24px 22px}
  .ky-cta{padding:60px 0}
  .ky-cta h2{font-size:24px}
  .ky-form-card{padding:24px 20px}
  .ky-faq .accordion-button{font-size:16px;padding:20px 36px 20px 0}
  .ky-faq .accordion-body{padding:0 20px 20px 0}
  .ky-footer{padding:56px 0 28px}
  .ky-footer-grid{grid-template-columns:1fr;gap:30px}
  .ky-footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:519.98px){
  .ky-hero h1{font-size:25px}
  .ky-hero-actions{gap:10px}
  .ky-hero-actions .ky-btn{width:100%}
  .ky-stats{grid-template-columns:1fr}
  .ky-nav-left{gap:16px}
  .ky-logo{font-size:18px}
  .ky-hero-media img{height:240px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .ky-reveal{opacity:1;transform:none}
}