/* roulang page: index */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --shadow-1:0 1px 2px rgba(20,33,31,.06);
  --shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-lg:20px;
  --sec:88px;
  --sec-sm:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--kai-bg);
  color:var(--kai-text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  font-weight:400;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--kai-text);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
h1,h2,h3,h4{margin:0 0 12px;color:var(--kai-ink);font-weight:700;line-height:1.35;letter-spacing:0}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--kai-accent);outline-offset:2px}
::selection{background:rgba(192,113,58,.22)}
.kai-container{width:100%;margin:0 auto;padding:0 16px}
@media (min-width:576px){.kai-container{max-width:540px}}
@media (min-width:768px){.kai-container{max-width:720px}}
@media (min-width:992px){.kai-container{max-width:960px;padding:0 24px}}
@media (min-width:1200px){.kai-container{max-width:1140px}}
@media (min-width:1400px){.kai-container{max-width:1200px}}
.kai-skip{position:absolute;left:-9999px;top:0;background:var(--kai-ink);color:#fff;padding:10px 18px;border-radius:8px;z-index:2000}
.kai-skip:focus{left:16px;top:16px}
.kai-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--kai-primary);background:var(--kai-surface-2);border:1px solid var(--kai-line);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px}
.kai-eyebrow i{color:var(--kai-accent);font-size:12px}
.kai-h1{font-family:'Noto Serif SC','Noto Sans SC',serif;font-size:40px;line-height:1.3;margin-bottom:16px}
.kai-h2{font-size:30px;line-height:1.35;margin-bottom:12px}
.kai-h3{font-size:21px;line-height:1.45}
.kai-lead{font-size:18px;color:var(--kai-muted);max-width:640px;margin-bottom:28px}
.kai-sub{font-size:16px;color:var(--kai-muted);max-width:760px}
.kai-muted{color:var(--kai-muted)}
.kai-note{font-size:14px;color:var(--kai-muted)}
.kai-divider{height:1px;background:var(--kai-line);border:0;margin:0}
.btn-kai-primary,.btn-kai-ghost,.btn-kai-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:13px 28px;font-size:16px;font-weight:600;
  cursor:pointer;transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  text-decoration:none;border:1px solid transparent;
}
.btn-kai-primary{background:var(--kai-accent);border-color:var(--kai-accent);color:#fff}
.btn-kai-primary:hover{background:var(--kai-accent-600);border-color:var(--kai-accent-600);color:#fff;transform:translateY(-1px);text-decoration:none;box-shadow:var(--shadow-2)}
.btn-kai-ghost{background:transparent;border-color:var(--kai-primary);color:var(--kai-primary)}
.btn-kai-ghost:hover{background:var(--kai-primary);border-color:var(--kai-primary);color:#fff;transform:translateY(-1px);text-decoration:none}
.btn-kai-light{background:var(--kai-surface);border-color:var(--kai-line);color:var(--kai-ink)}
.btn-kai-light:hover{border-color:var(--kai-primary);color:var(--kai-primary);transform:translateY(-1px);text-decoration:none}
.btn-kai-primary:disabled,.btn-kai-ghost:disabled,.btn-kai-light:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-kai-sm{padding:9px 18px;font-size:14px}
.kai-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--kai-primary);background:var(--kai-surface-2);border:1px solid var(--kai-line);border-radius:var(--r-pill);padding:3px 12px}
.kai-badge--accent{color:var(--kai-accent);border-color:rgba(192,113,58,.32);background:rgba(192,113,58,.08)}
.kai-taglist{display:flex;flex-wrap:wrap;gap:10px}
.kai-taglist a{font-size:14px;color:var(--kai-muted);border:1px solid var(--kai-line);background:var(--kai-surface);border-radius:var(--r-pill);padding:6px 14px;transition:.25s}
.kai-taglist a:hover{border-color:var(--kai-primary);color:var(--kai-primary);text-decoration:none}

/* ===== header / nav ===== */
.kai-header{position:sticky;top:0;z-index:1030;padding:12px 0 0}
.kai-navpanel{
  display:flex;align-items:center;gap:16px;
  background:var(--kai-ink);border-radius:16px;padding:10px 14px 10px 18px;
  transition:background .3s ease,box-shadow .3s ease;
}
.kai-header.is-scrolled .kai-navpanel{background:rgba(20,33,31,.92);box-shadow:var(--shadow-2)}
.kai-logo{font-family:'Noto Serif SC','Noto Sans SC',serif;font-size:20px;font-weight:700;color:#fff;letter-spacing:.02em;white-space:nowrap;display:inline-flex;align-items:baseline}
.kai-logo span{font-weight:400;color:var(--kai-accent);margin-left:2px}
.kai-logo:hover{color:#fff;text-decoration:none}
.kai-navlinks{display:flex;align-items:center;gap:8px;margin-left:auto}
.kai-navlinks a{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:12px;background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.86);font-size:14px;font-weight:500;transition:.25s;
}
.kai-navlinks a i{font-size:13px;opacity:.85}
.kai-navlinks a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.kai-navlinks a.active{color:var(--kai-accent)}
.kai-navlinks a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;border-radius:2px;background:var(--kai-accent)}
.kai-nav-cta{background:var(--kai-accent);color:#fff;border-radius:var(--r-btn);padding:10px 20px;font-size:14px;font-weight:600;white-space:nowrap;transition:.25s}
.kai-nav-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:17px;align-items:center;justify-content:center}
.kai-burger:hover{background:rgba(255,255,255,.14)}
.kai-drawer{background:var(--kai-ink);color:#fff;width:340px;max-width:88vw}
.kai-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.kai-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75}
.kai-drawer .offcanvas-body{padding:20px}
.kai-drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:22px}
.kai-drawer-grid a{display:flex;flex-direction:column;gap:6px;padding:14px 12px;border-radius:12px;background:rgba(255,255,255,.06);color:rgba(255,255,255,.9);font-size:14px;transition:.25s}
.kai-drawer-grid a i{color:var(--kai-accent);font-size:15px}
.kai-drawer-grid a:hover,.kai-drawer-grid a.active{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.kai-drawer-note{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:16px}
@media (max-width:991.98px){
  .kai-navlinks,.kai-nav-cta{display:none}
  .kai-burger{display:inline-flex;margin-left:auto}
  body{padding-bottom:76px}
}

/* ===== hero ===== */
.kai-hero{position:relative;padding:66px 0 var(--sec);overflow:hidden;background:var(--kai-bg)}
.kai-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(115% 58% at 88% -12%, rgba(42,93,87,.10), transparent 62%),
    radial-gradient(75% 48% at 2% 0%, rgba(192,113,58,.08), transparent 66%);
}
.kai-hero .kai-container{position:relative;z-index:1}
.kai-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.kai-microtrust{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--kai-muted)}
.kai-microtrust li{display:inline-flex;align-items:center;gap:8px}
.kai-microtrust i{color:var(--kai-primary)}
.kai-hero-media{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--kai-line);background:var(--kai-surface-2);aspect-ratio:16/12}
.kai-hero-media img{width:100%;height:100%;object-fit:cover}

/* ===== sections ===== */
.kai-section{padding:var(--sec) 0}
.kai-section--sm{padding:var(--sec-sm) 0}
.kai-section--alt{background:var(--kai-surface-2)}
.kai-section--line{border-top:1px solid var(--kai-line)}
.kai-section-head{max-width:760px;margin-bottom:44px}
.kai-section-head .kai-h2{margin-bottom:10px}
.kai-section-head p{color:var(--kai-muted);margin:0}

/* ===== stair cards ===== */
.kai-stair{display:flex;gap:24px;align-items:flex-end}
.kai-stair-card{
  position:relative;background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--r-card);padding:30px 24px 26px;box-shadow:var(--shadow-1);
  transition:box-shadow .4s ease,border-color .3s ease,transform .3s ease;overflow:hidden;
}
.kai-stair-card:hover{box-shadow:var(--shadow-2);border-color:var(--kai-primary);transform:translateY(-3px)}
.kai-stair-card:nth-child(1){flex:0 0 38%;min-height:250px}
.kai-stair-card:nth-child(2){flex:0 0 32%;min-height:296px}
.kai-stair-card:nth-child(3){flex:0 0 26%;min-height:340px}
.kai-stair-num{position:absolute;right:16px;top:2px;font-size:76px;font-weight:800;line-height:1;color:rgba(42,93,87,.12);letter-spacing:-.03em}
.kai-stair-card h3{font-size:19px;margin-bottom:10px}
.kai-stair-card p{font-size:15px;color:var(--kai-muted);margin:0;line-height:1.8}
.kai-stair-icon{width:40px;height:40px;border-radius:12px;background:var(--kai-surface-2);color:var(--kai-primary);display:inline-flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px}

/* ===== alternating media ===== */
.kai-flow{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:64px}
.kai-flow:last-child{margin-bottom:0}
.kai-flow.reverse .kai-flow-media{order:2}
.kai-flow-media{margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--kai-line);background:var(--kai-surface-2);aspect-ratio:16/10;box-shadow:var(--shadow-1)}
.kai-flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.kai-flow-media:hover img{transform:scale(1.03)}
.kai-flow-body h3{margin-bottom:14px}
.kai-flow-body p{color:var(--kai-muted);font-size:16px;max-width:600px}
.kai-check{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.kai-check li{display:flex;gap:10px;font-size:15px;color:var(--kai-text)}
.kai-check i{color:var(--kai-accent);margin-top:6px;font-size:13px}

/* ===== stats & quotes ===== */
.kai-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:52px}
.kai-stat{background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-1);transition:.3s}
.kai-stat:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2)}
.kai-stat b{display:block;font-size:34px;font-weight:800;color:var(--kai-accent);line-height:1.15;letter-spacing:-.01em}
.kai-stat span{display:block;font-size:14px;color:var(--kai-muted);margin-top:8px}
.kai-quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.kai-quote{background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--shadow-1);transition:.3s}
.kai-quote:hover{box-shadow:var(--shadow-2);border-color:var(--kai-primary)}
.kai-quote:nth-child(1){transform:rotate(-.5deg)}
.kai-quote:nth-child(2){transform:rotate(.4deg)}
.kai-quote:nth-child(3){transform:rotate(-.3deg)}
.kai-quote blockquote{margin:0 0 18px;font-size:16px;color:var(--kai-text)}
.kai-quote-person{display:flex;align-items:center;gap:12px}
.kai-avatar{width:42px;height:42px;border-radius:50%;background:var(--kai-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex:0 0 auto}
.kai-quote-person strong{display:block;font-size:15px;color:var(--kai-ink)}
.kai-quote-person em{font-style:normal;font-size:13px;color:var(--kai-muted)}

/* ===== news list ===== */
.kai-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.kai-news-card{display:flex;flex-direction:column;background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:.3s;height:100%}
.kai-news-card:hover{box-shadow:var(--shadow-2);border-color:var(--kai-primary);transform:translateY(-2px);text-decoration:none}
.kai-news-cover{aspect-ratio:16/10;background:var(--kai-surface-2);overflow:hidden}
.kai-news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.kai-news-card:hover .kai-news-cover img{transform:scale(1.03)}
.kai-news-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.kai-news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--kai-muted)}
.kai-news-title{font-size:17px;font-weight:700;color:var(--kai-ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.kai-news-card:hover .kai-news-title{color:var(--kai-primary)}
.kai-news-excerpt{font-size:14px;color:var(--kai-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.kai-news-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--kai-accent);display:inline-flex;align-items:center;gap:6px}
.kai-empty{grid-column:1/-1;background:var(--kai-surface-2);border:1px dashed var(--kai-line);border-radius:var(--r-card);padding:52px 28px;text-align:center}
.kai-empty i{font-size:26px;color:var(--kai-primary);display:block;margin-bottom:14px}
.kai-empty p{color:var(--kai-muted);margin-bottom:16px}

/* ===== faq ===== */
.kai-faq{max-width:860px}
.kai-faq .accordion-item{border:1px solid var(--kai-line);border-radius:var(--r-card);background:var(--kai-surface);margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1)}
.kai-faq .accordion-button{
  position:relative;background:var(--kai-surface);color:var(--kai-ink);
  font-size:17px;font-weight:600;padding:20px 58px 20px 24px;border:0;box-shadow:none;
  border-radius:var(--r-card);transition:.25s;
}
.kai-faq .accordion-button::after{display:none}
.kai-faq .accordion-button::before{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--kai-accent);line-height:1}
.kai-faq .accordion-button:not(.collapsed){color:var(--kai-primary);background:var(--kai-surface-2);box-shadow:inset 3px 0 0 var(--kai-accent)}
.kai-faq .accordion-button:not(.collapsed)::before{content:"−"}
.kai-faq .accordion-button:focus{box-shadow:inset 3px 0 0 var(--kai-accent),0 0 0 2px rgba(192,113,58,.4)}
.kai-faq .accordion-body{padding:18px 24px 24px;background:var(--kai-surface-2);color:var(--kai-muted);font-size:16px}
.kai-faq .accordion-body p{margin-bottom:.9em}

/* ===== cta / form ===== */
.kai-cta-band{background:var(--kai-ink);border-radius:var(--r-lg);padding:48px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.kai-cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.kai-cta-band p{color:rgba(255,255,255,.72);font-size:16px}
.kai-cta-points{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.kai-cta-points li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.86)}
.kai-cta-points i{color:var(--kai-accent);margin-top:6px;font-size:13px}
.kai-form{background:var(--kai-surface);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-2)}
.kai-field{margin-bottom:16px}
.kai-field label{display:block;font-size:14px;font-weight:600;color:var(--kai-ink);margin-bottom:7px}
.kai-field input,.kai-field textarea{
  width:100%;border:1px solid var(--kai-line);background:var(--kai-bg);
  border-radius:var(--r-btn);padding:12px 14px;font-size:15px;transition:.25s;
}
.kai-field input:focus,.kai-field textarea:focus{outline:none;border-color:var(--kai-primary);background:var(--kai-surface);box-shadow:0 0 0 3px rgba(42,93,87,.12)}
.kai-field textarea{min-height:112px;resize:vertical}
.kai-form-hint{font-size:13px;color:var(--kai-muted);margin-top:12px}
.kai-form .btn-kai-primary{width:100%}

/* ===== footer ===== */
.kai-footer{background:var(--kai-ink);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.kai-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12)}
.kai-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.kai-footer a{color:rgba(255,255,255,.72);font-size:15px}
.kai-footer a:hover{color:#fff}
.kai-footer .kai-logo{font-size:20px}
.kai-footer-desc{font-size:15px;color:rgba(255,255,255,.62);margin-top:14px;max-width:380px}
.kai-footer-list{display:flex;flex-direction:column;gap:11px}
.kai-footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;padding-top:24px;font-size:13px;color:rgba(255,255,255,.5)}
.kai-footer-bottom a{font-size:13px}

/* ===== mobile sticky bar ===== */
.kai-mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;
  background:var(--kai-ink);border-top:1px solid rgba(255,255,255,.12);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
}
.kai-mobile-bar span{color:#fff;font-size:14px;font-weight:600}
.kai-mobile-bar .btn-kai-primary{padding:10px 20px;font-size:14px}
@media (max-width:991.98px){.kai-mobile-bar{display:flex}}

/* ===== responsive ===== */
@media (max-width:1199.98px){
  .kai-stair{flex-wrap:wrap;align-items:stretch}
  .kai-stair-card:nth-child(1),.kai-stair-card:nth-child(2){flex:1 1 46%;min-height:0}
  .kai-stair-card:nth-child(3){flex:1 1 100%;min-height:0}
  .kai-news-grid{grid-template-columns:repeat(2,1fr)}
  .kai-stats{grid-template-columns:repeat(2,1fr)}
  .kai-quotes{grid-template-columns:1fr 1fr}
  .kai-quote:nth-child(3){display:none}
}
@media (max-width:991.98px){
  :root{--sec:64px;--sec-sm:48px}
  .kai-h1{font-size:32px}
  .kai-h2{font-size:24px}
  .kai-h3{font-size:19px}
  .kai-flow{grid-template-columns:1fr;gap:24px;margin-bottom:48px}
  .kai-flow.reverse .kai-flow-media{order:0}
  .kai-cta-band{grid-template-columns:1fr;gap:32px;padding:32px 24px}
  .kai-cta-band h2{font-size:23px}
  .kai-footer-grid{grid-template-columns:1fr;gap:28px}
  .kai-stair{flex-direction:column;gap:18px}
  .kai-stair-card:nth-child(1),.kai-stair-card:nth-child(2),.kai-stair-card:nth-child(3){flex:1 1 auto}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.8}
  .kai-h1{font-size:28px}
  .kai-lead{font-size:16px}
  .kai-news-grid{grid-template-columns:1fr}
  .kai-stats{grid-template-columns:1fr 1fr;gap:14px}
  .kai-stat{padding:20px 16px}
  .kai-stat b{font-size:26px}
  .kai-quotes{grid-template-columns:1fr}
  .kai-quote:nth-child(3){display:block}
  .kai-quote,.kai-quote:nth-child(1),.kai-quote:nth-child(2),.kai-quote:nth-child(3){transform:none}
  .kai-hero{padding-top:40px}
  .kai-hero-actions{gap:10px}
  .kai-hero-actions .btn-kai-primary,.kai-hero-actions .btn-kai-ghost{flex:1 1 100%;justify-content:center}
  .kai-form{padding:22px}
}
@media (max-width:519.98px){
  .kai-stats{grid-template-columns:1fr}
  .kai-navpanel{padding:10px 12px}
  .kai-logo{font-size:18px}
  .kai-drawer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --kai-shadow-1:0 1px 2px rgba(20,33,31,.06);
  --kai-shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
  --kai-r-card:14px;
  --kai-r-img:12px;
  --kai-r-btn:10px;
  --kai-r-badge:999px;
  --kai-r-big:20px;
  --kai-font:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --kai-serif:'Noto Serif SC','Noto Sans SC','PingFang SC',serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--kai-font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--kai-text);
  background:var(--kai-bg);
  padding-bottom:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--kai-text);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.15em;padding-left:1.2em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--kai-accent);outline-offset:2px;border-radius:4px}
.kai-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
}
@media (min-width:768px){.kai-container{max-width:720px;padding:0 20px}}
@media (min-width:992px){.kai-container{max-width:960px}}
@media (min-width:1200px){.kai-container{max-width:1140px}}
@media (min-width:1400px){.kai-container{max-width:1200px}}

/* ============ 导航 ============ */
.kai-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:12px 0 0;
}
.kai-navpanel{
  display:flex;
  align-items:center;
  gap:14px;
  background:rgba(20,33,31,.96);
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;
  padding:10px 14px;
  box-shadow:var(--kai-shadow-1);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.kai-header.is-scrolled .kai-navpanel{
  background:rgba(20,33,31,.92);
  box-shadow:var(--kai-shadow-2);
}
.kai-logo{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  font-family:var(--kai-serif);
  font-size:21px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  white-space:nowrap;
}
.kai-logo span{font-weight:600;color:#fff}
.kai-logo::after{
  content:"";
  width:7px;height:7px;
  margin-left:5px;
  border-radius:50%;
  background:var(--kai-accent);
  display:block;
}
a.kai-logo:hover{color:#fff;text-decoration:none}
.kai-navlinks{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.kai-navlinks a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 12px;
  font-size:14px;
  color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.06);
  border:1px solid transparent;
  border-radius:12px;
  position:relative;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.kai-navlinks a i{font-size:13px;opacity:.85}
.kai-navlinks a:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  text-decoration:none;
}
.kai-navlinks a.active{
  color:var(--kai-accent);
  background:rgba(192,113,58,.14);
}
.kai-navlinks a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--kai-accent);
}
.kai-nav-cta{
  margin-left:10px;
  display:inline-flex;
  align-items:center;
  padding:9px 18px;
  font-size:14px;
  font-weight:600;
  color:#fff;
  background:var(--kai-accent);
  border-radius:var(--kai-r-btn);
  white-space:nowrap;
  box-shadow:var(--kai-shadow-1);
  transition:background-color .2s ease,transform .2s ease;
}
.kai-nav-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-burger{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);
  color:#fff;
  font-size:18px;
  cursor:pointer;
}
.kai-burger:hover{background:rgba(255,255,255,.16)}
.kai-drawer{
  background:var(--kai-ink);
  color:#fff;
  width:320px;
  border-right:1px solid rgba(255,255,255,.08);
}
.kai-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1)}
.kai-drawer .offcanvas-title{color:#fff;font-size:17px}
.kai-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75}
.kai-drawer-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  padding:16px 0;
}
.kai-drawer-grid a{
  display:flex;
  align-items:center;
  gap:8px;
  padding:12px 12px;
  font-size:14px;
  color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  border-radius:12px;
}
.kai-drawer-grid a:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.kai-drawer-grid a.active{color:var(--kai-accent);border-color:rgba(192,113,58,.5)}
.kai-drawer-cta{
  display:block;
  text-align:center;
  padding:12px;
  background:var(--kai-accent);
  color:#fff;
  border-radius:var(--kai-r-btn);
  font-weight:600;
}
.kai-drawer-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none}
@media (max-width:1199px){
  .kai-navlinks a{padding:7px 9px;font-size:13px}
  .kai-navlinks a i{display:none}
}
@media (max-width:991px){
  .kai-navlinks,.kai-nav-cta{display:none}
  .kai-burger{display:inline-flex;align-items:center;justify-content:center}
}

/* ============ 通用组件 ============ */
.kai-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--kai-r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.kai-btn-accent{background:var(--kai-accent);color:#fff;box-shadow:var(--kai-shadow-1)}
.kai-btn-accent:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-btn-accent:active{transform:translateY(0)}
.kai-btn-ghost{background:transparent;color:var(--kai-primary);border-color:var(--kai-primary)}
.kai-btn-ghost:hover{background:var(--kai-primary);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-btn:disabled,.kai-btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.kai-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  font-size:13px;
  border-radius:var(--kai-r-badge);
  background:var(--kai-surface-2);
  color:var(--kai-primary);
  border:1px solid var(--kai-line);
}
.kai-badge-accent{background:rgba(192,113,58,.12);color:var(--kai-accent-600);border-color:rgba(192,113,58,.28)}

/* ============ 面包屑 ============ */
.kai-crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--kai-muted);
}
.kai-crumb ol{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.kai-crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.kai-crumb li+li::before{content:"/";color:var(--kai-line)}
.kai-crumb a{color:var(--kai-muted)}
.kai-crumb a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
.kai-crumb .current{
  color:var(--kai-text);
  max-width:280px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ 标题区 ============ */
.kai-arthead{padding:16px 0 26px;border-bottom:1px solid var(--kai-line)}
.kai-arthead h1{
  font-family:var(--kai-serif);
  font-size:40px;
  line-height:1.32;
  margin:10px 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.kai-artmeta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--kai-muted);
}
.kai-artmeta i{color:var(--kai-primary);margin-right:5px}

/* ============ 正文布局 ============ */
.kai-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  padding:44px 0 72px;
}
@media (min-width:1200px){
  .kai-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
}
.kai-article-body{max-width:760px;font-size:17px;line-height:1.85}
.kai-article-body>*:first-child{margin-top:0}
.kai-article-body h2{
  font-size:30px;
  margin:2em 0 .75em;
  padding-left:16px;
  position:relative;
}
.kai-article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:4px;
  background:var(--kai-primary);
}
.kai-article-body h3{font-size:21px;margin:1.4em 0 .6em}
.kai-article-body h4{font-size:18px;margin:1.2em 0 .5em;color:var(--kai-primary-600)}
.kai-article-body p{margin:0 0 1.15em}
.kai-article-body a{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
.kai-article-body a:hover{color:var(--kai-accent-600)}
.kai-article-body img{
  border-radius:var(--kai-r-img);
  margin:1.5em auto;
  box-shadow:var(--kai-shadow-1);
}
.kai-article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--kai-surface-2);
  border-left:3px solid var(--kai-accent);
  border-radius:0 var(--kai-r-card) var(--kai-r-card) 0;
  color:var(--kai-text);
}
.kai-article-body blockquote p:last-child{margin-bottom:0}
.kai-article-body ul,.kai-article-body ol{padding-left:1.35em}
.kai-article-body li{margin-bottom:.5em}
.kai-article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  background:var(--kai-surface);
  border-radius:var(--kai-r-card);
  overflow:hidden;
  box-shadow:var(--kai-shadow-1);
}
.kai-article-body th,.kai-article-body td{
  padding:12px 14px;
  border:1px solid var(--kai-line);
  text-align:left;
}
.kai-article-body th{background:var(--kai-surface-2);font-weight:600}
.kai-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.kai-article-body pre{
  background:var(--kai-surface-2);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.kai-article-body code{
  background:var(--kai-surface-2);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
}
.kai-article-body pre code{background:none;padding:0}
.kai-article-body hr{border:0;border-top:1px solid var(--kai-line);margin:2em 0}
.kai-article-body figure{margin:1.6em 0}
.kai-article-body figcaption{font-size:13px;color:var(--kai-muted);text-align:center;margin-top:8px}

/* ============ 空态 ============ */
.kai-empty{
  background:var(--kai-surface-2);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-big);
  padding:56px 28px;
  text-align:center;
  max-width:760px;
}
.kai-empty i{font-size:30px;color:var(--kai-primary);margin-bottom:14px;display:block}
.kai-empty h2{font-size:22px;margin-bottom:10px}
.kai-empty p{color:var(--kai-muted);margin-bottom:20px}

/* ============ 侧栏 ============ */
.kai-side{display:none}
@media (min-width:1200px){.kai-side{display:block}}
.kai-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.kai-sidecard{
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  padding:20px;
  box-shadow:var(--kai-shadow-1);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.kai-sidecard:hover{box-shadow:var(--kai-shadow-2);border-color:var(--kai-primary)}
.kai-sidecard h3{
  font-size:16px;
  margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.kai-sidecard h3 i{color:var(--kai-accent);font-size:14px}
.kai-sidelist{list-style:none;margin:0;padding:0}
.kai-sidelist li+li{border-top:1px solid var(--kai-line)}
.kai-sidelist a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 0;
  font-size:14px;
  color:var(--kai-text);
}
.kai-sidelist a:hover{color:var(--kai-primary);text-decoration:none}
.kai-sidelist a i{font-size:12px;color:var(--kai-primary);opacity:.7}
.kai-sidecard-cta{
  background:var(--kai-ink);
  border-color:transparent;
  color:#fff;
}
.kai-sidecard-cta h3{color:#fff}
.kai-sidecard-cta p{color:rgba(255,255,255,.75);font-size:14px;margin-bottom:16px}
.kai-sidecard-cta .kai-btn{width:100%}

/* ============ 文末区 ============ */
.kai-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:36px 0 0;
}
.kai-tags a{
  padding:6px 14px;
  font-size:13px;
  border-radius:var(--kai-r-badge);
  background:var(--kai-surface-2);
  border:1px solid var(--kai-line);
  color:var(--kai-muted);
}
.kai-tags a:hover{color:var(--kai-primary);border-color:var(--kai-primary);text-decoration:none}

.kai-pn{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin:36px 0 0;
  max-width:760px;
}
@media (min-width:768px){.kai-pn{grid-template-columns:1fr 1fr}}
.kai-pn a{
  display:block;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  padding:18px 20px;
  box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.kai-pn a:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2);transform:translateY(-2px);text-decoration:none}
.kai-pn span{display:block;font-size:13px;color:var(--kai-muted);margin-bottom:6px}
.kai-pn strong{font-size:16px;font-weight:600;display:block}
.kai-pn .kai-pn-next{text-align:right}

/* ============ 相关推荐 ============ */
.kai-section{padding:64px 0}
.kai-section-alt{background:var(--kai-surface-2)}
.kai-sechead{max-width:720px;margin-bottom:32px}
.kai-sechead h2{font-size:30px;margin:10px 0 12px}
.kai-sechead p{color:var(--kai-muted);margin:0}
.kai-cards{
  display:grid;
  grid-template-columns:1fr;
  gap:22px;
}
@media (min-width:576px){.kai-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:992px){.kai-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.kai-card{
  display:flex;
  flex-direction:column;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  overflow:hidden;
  box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.kai-card:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2);transform:translateY(-3px)}
.kai-card-media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--kai-surface-2);
}
.kai-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.kai-card:hover .kai-card-media img{transform:scale(1.03)}
.kai-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.kai-card-body h3{
  font-size:17px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.kai-card-body p{
  font-size:14px;
  color:var(--kai-muted);
  margin:0;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.kai-card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--kai-muted);
}
.kai-card-foot .kai-more{color:var(--kai-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.kai-card-foot .kai-more i{transition:transform .3s ease}
.kai-card:hover .kai-card-foot .kai-more i{transform:translateX(3px)}
a.kai-card-link{display:block;color:inherit}
a.kai-card-link:hover{text-decoration:none;color:inherit}

/* ============ CTA ============ */
.kai-cta{
  background:var(--kai-ink);
  border-radius:var(--kai-r-big);
  padding:48px 32px;
  color:#fff;
  display:grid;
  gap:28px;
}
@media (min-width:992px){.kai-cta{grid-template-columns:1fr 1fr;padding:56px 48px;align-items:center;gap:48px}}
.kai-cta h2{font-size:30px;color:#fff;margin-bottom:12px}
.kai-cta p{color:rgba(255,255,255,.78);margin-bottom:18px;font-size:16px}
.kai-cta-points{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 20px}
.kai-cta-points li{font-size:14px;color:rgba(255,255,255,.82);display:flex;align-items:center;gap:8px}
.kai-cta-points i{color:var(--kai-accent);font-size:12px}
.kai-form{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--kai-r-card);
  padding:22px;
}
.kai-form label{display:block;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:7px}
.kai-form .kai-field{margin-bottom:16px}
.kai-form input,
.kai-form textarea{
  width:100%;
  padding:11px 14px;
  font-size:15px;
  color:#fff;
  background:rgba(20,33,31,.55);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--kai-r-btn);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.kai-form input::placeholder,
.kai-form textarea::placeholder{color:rgba(255,255,255,.45)}
.kai-form input:focus,
.kai-form textarea:focus{
  outline:none;
  border-color:var(--kai-accent);
  box-shadow:0 0 0 3px rgba(192,113,58,.22);
  background:rgba(20,33,31,.75);
}
.kai-form textarea{min-height:96px;resize:vertical}
.kai-form .kai-btn{width:100%}
.kai-form-note{font-size:12.5px;color:rgba(255,255,255,.6);margin:12px 0 0}

/* ============ 页脚 ============ */
.kai-footer{
  background:var(--kai-ink);
  color:rgba(255,255,255,.78);
  padding:56px 0 26px;
  margin-top:0;
}
.kai-footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
@media (min-width:768px){.kai-footer-grid{grid-template-columns:2fr 1fr 1fr;gap:40px}}
.kai-footer .kai-logo{font-size:20px;margin-bottom:14px}
.kai-footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:420px;margin:0}
.kai-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.kai-footer-list{list-style:none;margin:0;padding:0}
.kai-footer-list li{margin-bottom:10px}
.kai-footer-list a{font-size:14px;color:rgba(255,255,255,.72)}
.kai-footer-list a:hover{color:var(--kai-accent);text-decoration:none}
.kai-footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 移动端固定转化条 ============ */
.kai-fixedbar{
  display:block;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:rgba(20,33,31,.97);
  border-top:1px solid rgba(255,255,255,.1);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow:0 -8px 24px -14px rgba(20,33,31,.5);
}
.kai-fixedbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  max-width:720px;
  margin:0 auto;
}
.kai-fixedbar-text{font-size:13.5px;color:rgba(255,255,255,.82)}
.kai-fixedbar .kai-btn{padding:10px 18px;font-size:14px}
@media (max-width:991px){body{padding-bottom:76px}}
@media (min-width:992px){
  .kai-fixedbar{
    left:auto;right:24px;bottom:24px;
    border-radius:var(--kai-r-card);
    border:1px solid var(--kai-line);
    background:var(--kai-surface);
    padding:12px 16px;
    box-shadow:var(--kai-shadow-2);
  }
  .kai-fixedbar-text{color:var(--kai-text)}
}

@media (max-width:767px){
  body{font-size:16px}
  .kai-arthead h1{font-size:28px}
  .kai-article-body{font-size:16px}
  .kai-article-body h2{font-size:22px}
  .kai-article-body h3{font-size:19px}
  .kai-sechead h2,.kai-cta h2{font-size:22px}
  .kai-section{padding:48px 0}
  .kai-crumb .current{max-width:170px}
}

/* roulang page: category1 */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --kai-shadow-1:0 1px 2px rgba(20,33,31,.06);
  --kai-shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
  --kai-r-card:14px;
  --kai-r-img:12px;
  --kai-r-btn:10px;
  --kai-r-lg:20px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:76px;
  background:var(--kai-bg);
  color:var(--kai-text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--kai-text);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--kai-accent);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.01em;color:var(--kai-text);}
h1{font-size:40px;}
h2{font-size:30px;}
h3{font-size:21px;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.kai-container{
  width:100%;max-width:1200px;margin:0 auto;padding:0 24px;
}
@media(max-width:1399px){.kai-container{max-width:1140px;}}
@media(max-width:1199px){.kai-container{max-width:960px;}}
@media(max-width:991px){.kai-container{max-width:720px;}}
@media(max-width:575px){.kai-container{max-width:none;padding:0 16px;}}

/* ---------- header / nav ---------- */
.kai-header{
  position:sticky;top:0;z-index:1030;
  padding:12px 0 0;
  background:linear-gradient(180deg,rgba(247,246,242,.92),rgba(247,246,242,0));
  transition:background .28s ease,box-shadow .28s ease,padding .28s ease;
}
.kai-navpanel{
  display:flex;align-items:center;gap:18px;
  background:var(--kai-ink);
  border-radius:16px;
  padding:10px 14px 10px 20px;
  box-shadow:var(--kai-shadow-1);
  transition:background .28s ease,box-shadow .28s ease;
}
.kai-header.is-scrolled{background:rgba(247,246,242,.92);box-shadow:var(--kai-shadow-2);padding-top:8px;}
.kai-header.is-scrolled .kai-navpanel{background:rgba(20,33,31,.94);box-shadow:none;}
.kai-logo{
  font-family:'Noto Serif SC','Noto Sans SC',serif;
  font-size:21px;font-weight:700;letter-spacing:.02em;
  color:#fff;white-space:nowrap;flex:0 0 auto;
}
.kai-logo span{font-weight:400;color:var(--kai-accent);margin-left:2px;}
.kai-logo:hover{color:#fff;text-decoration:none;}
.kai-navlinks{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:nowrap;}
.kai-navlinks a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:12px;
  font-size:14.5px;color:rgba(255,255,255,.82);
  background:rgba(255,255,255,.06);
  transition:background .22s ease,color .22s ease;
  white-space:nowrap;position:relative;
}
.kai-navlinks a i{font-size:15px;opacity:.85;}
.kai-navlinks a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none;}
.kai-navlinks a.active{color:#fff;background:rgba(255,255,255,.12);}
.kai-navlinks a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--kai-accent);
}
.kai-nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:var(--kai-r-btn);
  background:var(--kai-accent);color:#fff;font-size:14.5px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.kai-nav-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px);}
.kai-burger{
  display:none;flex:0 0 auto;width:42px;height:42px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;border-radius:12px;
  align-items:center;justify-content:center;font-size:17px;
}
.kai-burger:hover{background:rgba(255,255,255,.14);}
@media(max-width:1100px){
  .kai-navlinks a{padding:8px 10px;font-size:13.5px;}
  .kai-navlinks a i{display:none;}
}
@media(max-width:991px){
  .kai-navlinks,.kai-nav-cta{display:none;}
  .kai-burger{display:inline-flex;margin-left:auto;}
}
.kai-drawer{background:var(--kai-ink);color:#fff;}
.kai-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1);}
.kai-drawer .kai-logo{font-size:19px;}
.kai-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75;}
.kai-drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:18px 4px;}
.kai-drawer-grid a{
  display:flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.06);border-radius:12px;padding:13px 12px;
  color:rgba(255,255,255,.86);font-size:14.5px;
}
.kai-drawer-grid a i{color:var(--kai-accent);}
.kai-drawer-grid a:hover{background:rgba(255,255,255,.13);color:#fff;text-decoration:none;}
.kai-drawer-grid a.active{background:rgba(255,255,255,.14);color:#fff;}
.kai-drawer-cta{margin:6px 4px 18px;}
.kai-drawer-cta a{
  display:block;text-align:center;padding:13px;border-radius:var(--kai-r-btn);
  background:var(--kai-accent);color:#fff;font-weight:600;
}
.kai-drawer-cta a:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;}

/* ---------- buttons ---------- */
.kai-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--kai-r-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.kai-btn-primary{background:var(--kai-accent);color:#fff;box-shadow:var(--kai-shadow-1);}
.kai-btn-primary:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--kai-shadow-2);}
.kai-btn-ghost{background:transparent;color:var(--kai-primary);border-color:var(--kai-primary);}
.kai-btn-ghost:hover{background:var(--kai-surface-2);color:var(--kai-primary-600);border-color:var(--kai-primary-600);text-decoration:none;transform:translateY(-1px);}
.kai-btn-light{background:#fff;color:var(--kai-ink);border-color:var(--kai-line);}
.kai-btn-light:hover{background:var(--kai-surface-2);color:var(--kai-ink);text-decoration:none;}
.kai-btn:disabled,.kai-btn.disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- section basics ---------- */
.kai-section{padding:88px 0;}
.kai-section-sm{padding:64px 0;}
.kai-section-alt{background:var(--kai-surface-2);}
.kai-section-line{border-top:1px solid var(--kai-line);}
@media(max-width:991px){.kai-section{padding:56px 0;}.kai-section-sm{padding:48px 0;}}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--kai-primary);
  background:rgba(42,93,87,.08);border-radius:999px;padding:6px 14px;margin-bottom:16px;
  text-transform:uppercase;
}
.kai-head{margin-bottom:40px;}
.kai-head p{color:var(--kai-muted);font-size:16px;margin-top:12px;max-width:720px;}
.kai-rule{width:52px;height:3px;border-radius:3px;background:var(--kai-accent);margin:18px 0 0;}

/* ---------- page hero ---------- */
.kai-pagehero{
  position:relative;margin:26px 0 0;border-radius:var(--kai-r-lg);overflow:hidden;
  min-height:310px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--kai-shadow-2);
}
.kai-pagehero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(20,33,31,.78) 0%,rgba(20,33,31,.55) 58%,rgba(20,33,31,.38) 100%);
}
.kai-pagehero-inner{position:relative;z-index:2;padding:56px 48px;max-width:780px;}
.kai-pagehero h1{color:#fff;font-size:36px;margin-bottom:14px;}
.kai-pagehero p{color:rgba(255,255,255,.86);font-size:16.5px;margin:0;max-width:640px;}
.kai-crumb{
  position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;
}
.kai-crumb a{color:rgba(255,255,255,.78);}
.kai-crumb a:hover{color:#fff;}
.kai-crumb span.sep{opacity:.5;}
.kai-hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.kai-hero-badges span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:rgba(255,255,255,.9);
  border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:6px 13px;
}
.kai-hero-badges span i{color:var(--kai-accent);}
@media(max-width:767px){
  .kai-pagehero{min-height:262px;border-radius:16px;}
  .kai-pagehero-inner{padding:36px 24px;}
  .kai-pagehero h1{font-size:27px;}
}

/* ---------- cards ---------- */
.kai-card{
  background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-card);
  padding:28px;box-shadow:var(--kai-shadow-1);
  transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;
  height:100%;
}
.kai-card:hover{box-shadow:var(--kai-shadow-2);border-color:var(--kai-primary);transform:translateY(-2px);}
.kai-card h3{margin-bottom:12px;}
.kai-card p{color:var(--kai-muted);font-size:15.5px;line-height:1.8;}
.kai-card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(42,93,87,.1);color:var(--kai-primary);font-size:18px;margin-bottom:16px;
}
.kai-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;border-radius:999px;padding:4px 12px;
  background:var(--kai-surface-2);color:var(--kai-primary);border:1px solid var(--kai-line);
}
.kai-tag-accent{background:rgba(192,113,58,.12);color:var(--kai-accent-600);border-color:rgba(192,113,58,.28);}

/* ---------- overview + outline list ---------- */
.kai-overview{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start;}
.kai-overview-text p{color:var(--kai-muted);font-size:16.5px;}
@media(max-width:991px){.kai-overview{grid-template-columns:1fr;gap:26px;}}
.kai-note{
  background:var(--kai-surface-2);border-left:3px solid var(--kai-accent);
  border-radius:0 var(--kai-r-card) var(--kai-r-card) 0;padding:22px 24px;
}
.kai-note h3{font-size:17px;margin-bottom:10px;}
.kai-note p{color:var(--kai-muted);font-size:15px;margin:0;}

/* ---------- checklist rows ---------- */
.kai-checklist{display:flex;flex-direction:column;gap:12px;margin-top:8px;}
.kai-check-row{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-card);
  padding:20px 24px;box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.kai-check-row:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2);transform:translateX(3px);}
.kai-check-no{
  flex:0 0 auto;font-family:'Noto Serif SC',serif;font-size:20px;font-weight:700;
  color:var(--kai-primary);opacity:.55;min-width:38px;line-height:1.5;
}
.kai-check-row h3{font-size:17.5px;margin-bottom:6px;}
.kai-check-row p{color:var(--kai-muted);font-size:15px;margin:0;}
.kai-check-row .kai-tag{margin-top:12px;}
@media(max-width:575px){
  .kai-check-row{padding:18px;gap:12px;}
  .kai-check-no{min-width:30px;font-size:17px;}
}

/* ---------- feature split ---------- */
.kai-split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.kai-split.reverse .kai-split-media{order:2;}
@media(max-width:991px){
  .kai-split{grid-template-columns:1fr;gap:26px;}
  .kai-split.reverse .kai-split-media{order:0;}
}
.kai-split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--kai-r-img);
  background:var(--kai-surface-2);box-shadow:var(--kai-shadow-1);
  transition:transform .4s ease;
}
.kai-split-media{overflow:hidden;border-radius:var(--kai-r-img);}
.kai-split-media:hover img{transform:scale(1.03);}
.kai-split-text h2{margin-bottom:14px;}
.kai-split-text p{color:var(--kai-muted);font-size:16.5px;}
.kai-plainlist{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.kai-plainlist li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15.5px;color:var(--kai-text);
}
.kai-plainlist li i{color:var(--kai-accent);margin-top:.35em;font-size:14px;}

/* ---------- faq ---------- */
.kai-faq .accordion-item{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card)!important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--kai-shadow-1);transition:border-color .3s ease,box-shadow .3s ease;
}
.kai-faq .accordion-item:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2);}
.kai-faq .accordion-button{
  background:var(--kai-surface);color:var(--kai-text);
  font-size:17px;font-weight:600;padding:20px 24px;border:0;box-shadow:none;
  position:relative;
}
.kai-faq .accordion-button::after{
  background-image:none!important;
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:14px;color:var(--kai-primary);
  transform:none!important;transition:transform .28s ease,color .28s ease;
}
.kai-faq .accordion-button:not(.collapsed){color:var(--kai-primary-600);background:var(--kai-surface);}
.kai-faq .accordion-button:not(.collapsed)::after{content:"\f068";color:var(--kai-accent);}
.kai-faq .accordion-button:focus{outline:2px solid var(--kai-accent);outline-offset:-3px;box-shadow:none;}
.kai-faq .accordion-body{
  padding:0 24px 22px 27px;color:var(--kai-muted);font-size:15.5px;line-height:1.85;
  border-left:3px solid var(--kai-accent);
  margin-left:0;
}

/* ---------- cta ---------- */
.kai-cta{
  background:var(--kai-ink);border-radius:var(--kai-r-lg);
  padding:56px 48px;color:#fff;position:relative;overflow:hidden;
}
.kai-cta::before{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,113,58,.32),rgba(192,113,58,0) 70%);
}
.kai-cta-inner{position:relative;z-index:2;max-width:640px;}
.kai-cta h2{color:#fff;font-size:30px;margin-bottom:14px;}
.kai-cta p{color:rgba(255,255,255,.78);font-size:16.5px;}
.kai-cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
@media(max-width:767px){.kai-cta{padding:36px 24px;border-radius:16px;}.kai-cta h2{font-size:23px;}}

/* ---------- inline links ---------- */
.kai-inline-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.kai-inline-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;color:var(--kai-primary);
  border:1px solid var(--kai-line);background:var(--kai-surface);
  border-radius:999px;padding:8px 16px;
  transition:border-color .22s ease,background .22s ease,color .22s ease;
}
.kai-inline-link:hover{border-color:var(--kai-primary);background:var(--kai-surface-2);color:var(--kai-primary-600);text-decoration:none;}
.kai-inline-link i{font-size:13px;color:var(--kai-accent);}

/* ---------- footer ---------- */
.kai-footer{background:var(--kai-ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0;}
.kai-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12);}
.kai-footer .kai-logo{font-size:20px;display:inline-block;margin-bottom:14px;}
.kai-footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:400px;margin:0;}
.kai-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.kai-footer-list{display:flex;flex-direction:column;gap:10px;}
.kai-footer-list a{color:rgba(255,255,255,.68);font-size:14.5px;}
.kai-footer-list a:hover{color:var(--kai-accent);text-decoration:none;}
.kai-footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.5);
}
@media(max-width:767px){
  .kai-footer-grid{grid-template-columns:1fr;gap:28px;}
  .kai-footer{padding:48px 0 22px;}
}

/* ---------- mobile sticky bar ---------- */
.kai-mobilebar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--kai-ink);color:#fff;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 20px rgba(20,33,31,.22);
}
.kai-mobilebar span{font-size:13.5px;color:rgba(255,255,255,.82);line-height:1.4;}
.kai-mobilebar a{
  flex:0 0 auto;background:var(--kai-accent);color:#fff;font-size:14px;font-weight:600;
  padding:10px 18px;border-radius:var(--kai-r-btn);
}
.kai-mobilebar a:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;}
@media(min-width:992px){
  .kai-mobilebar{display:none;}
  body{padding-bottom:0;}
}

/* roulang page: category3 */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --shadow-1:0 1px 2px rgba(20,33,31,.06);
  --shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-big:20px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--kai-bg);
  color:var(--kai-text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

@media (max-width:991.98px){
  body{padding-bottom:76px}
}

img{max-width:100%;height:auto;display:block}
a{color:var(--kai-text);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease,transform .25s ease}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}

:focus-visible{outline:2px solid var(--kai-accent);outline-offset:2px}

h1,h2,h3,h4{font-weight:700;line-height:1.35;letter-spacing:.005em;margin:0}
h1{font-family:'Noto Serif SC','Noto Sans SC',serif;font-size:40px}
h2{font-size:30px}
h3{font-size:21px}

.kai-container{
  width:100%;
  margin:0 auto;
  padding:0 16px;
}
@media (min-width:576px){.kai-container{max-width:540px}}
@media (min-width:768px){.kai-container{max-width:720px;padding:0 20px}}
@media (min-width:992px){.kai-container{max-width:960px}}
@media (min-width:1200px){.kai-container{max-width:1140px}}
@media (min-width:1400px){.kai-container{max-width:1200px}}

/* ---------- 导航 ---------- */
.kai-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:12px 0 0;
}

.kai-navpanel{
  display:flex;
  align-items:center;
  gap:18px;
  background:var(--kai-ink);
  border-radius:16px;
  padding:10px 14px;
  transition:background-color .3s ease,box-shadow .3s ease;
}

.kai-header.is-scrolled .kai-navpanel{
  background:rgba(20,33,31,.92);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-2);
}

.kai-logo{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  font-size:21px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  white-space:nowrap;
}
.kai-logo span{
  font-weight:400;
  color:var(--kai-accent);
}
.kai-logo:hover{color:#fff;text-decoration:none}

.kai-navlinks{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}

.kai-navlinks a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 14px;
  border-radius:12px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.86);
  font-size:15px;
  line-height:1.4;
  position:relative;
  transition:background-color .25s ease,color .25s ease;
}
.kai-navlinks a i{font-size:15px;opacity:.9}
.kai-navlinks a:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  text-decoration:none;
}
.kai-navlinks a.active{
  color:var(--kai-accent);
  background:rgba(255,255,255,.12);
}
.kai-navlinks a.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--kai-accent);
}

.kai-nav-cta{
  margin-left:8px;
  display:inline-flex;
  align-items:center;
  padding:9px 20px;
  border-radius:var(--r-btn);
  background:var(--kai-accent);
  color:#fff;
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:background-color .25s ease,transform .25s ease;
}
.kai-nav-cta:hover{
  background:var(--kai-accent-600);
  color:#fff;
  text-decoration:none;
  transform:translateY(-1px);
}

.kai-burger{
  display:none;
  margin-left:auto;
  width:42px;
  height:42px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:12px;
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:17px;
  align-items:center;
  justify-content:center;
  transition:background-color .25s ease;
}
.kai-burger:hover{background:rgba(255,255,255,.14)}

@media (max-width:991.98px){
  .kai-navlinks,.kai-nav-cta{display:none}
  .kai-burger{display:inline-flex}
}

/* 抽屉 */
.kai-drawer{
  background:var(--kai-ink);
  color:#fff;
  width:330px;
}
.kai-drawer .offcanvas-header{
  border-bottom:1px solid rgba(255,255,255,.12);
  padding:18px 20px;
}
.kai-drawer .btn-close{
  filter:invert(1) grayscale(1);
  opacity:.7;
}
.kai-drawer .btn-close:hover{opacity:1}
.kai-drawer-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-bottom:20px;
}
.kai-drawer-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:16px 14px;
  border-radius:12px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.88);
  font-size:15px;
  line-height:1.4;
}
.kai-drawer-card i{font-size:18px;color:var(--kai-accent)}
.kai-drawer-card:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  text-decoration:none;
}
.kai-drawer-card.active{background:rgba(255,255,255,.16);color:#fff}

/* ---------- 按钮 ---------- */
.btn-kai{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:16px;
  font-weight:500;
  line-height:1.5;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-kai:hover{text-decoration:none;transform:translateY(-1px)}
.btn-kai:active{transform:translateY(0)}
.btn-kai-accent{background:var(--kai-accent);color:#fff}
.btn-kai-accent:hover{background:var(--kai-accent-600);color:#fff}
.btn-kai-ghost{border-color:var(--kai-primary);color:var(--kai-primary);background:transparent}
.btn-kai-ghost:hover{background:var(--kai-primary);color:#fff}
.btn-kai-light{background:#fff;color:var(--kai-ink)}
.btn-kai-light:hover{background:#EDE9E2;color:var(--kai-ink)}
.btn-kai-line{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-kai-line:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 横幅 ---------- */
.kai-banner{
  position:relative;
  min-height:300px;
  display:flex;
  align-items:center;
  margin-top:12px;
  border-radius:var(--r-big);
  overflow:hidden;
  background:var(--kai-ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.kai-banner-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(20,33,31,.78) 0%,rgba(20,33,31,.55) 60%,rgba(20,33,31,.42) 100%);
}
.kai-banner-inner{
  position:relative;
  z-index:2;
  padding-top:56px;
  padding-bottom:52px;
  color:#fff;
}
.kai-crumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:13px;
  color:rgba(255,255,255,.72);
  margin-bottom:16px;
}
.kai-crumb a{color:rgba(255,255,255,.72)}
.kai-crumb a:hover{color:#fff;text-decoration:underline}
.kai-crumb .cur{color:var(--kai-accent)}

.kai-banner-title{
  font-size:40px;
  color:#fff;
  margin-bottom:12px;
  max-width:760px;
}
.kai-banner-sub{
  color:rgba(255,255,255,.86);
  font-size:17px;
  max-width:640px;
  margin-bottom:0;
}
.kai-banner-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.kai-banner-tags span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  font-size:13px;
  color:#fff;
}
.kai-banner-tags i{color:var(--kai-accent);font-size:12px}

@media (max-width:991.98px){
  .kai-banner-title{font-size:32px}
}
@media (max-width:575.98px){
  .kai-banner{min-height:260px;border-radius:16px}
  .kai-banner-title{font-size:28px}
  .kai-banner-inner{padding-top:40px;padding-bottom:38px}
}

/* ---------- 板块 ---------- */
.kai-section{
  padding:88px 0;
}
.kai-section-sm{
  padding:64px 0;
}
.kai-section-alt{
  background:var(--kai-surface-2);
}
.kai-section-line{
  border-top:1px solid var(--kai-line);
}

@media (max-width:991.98px){
  .kai-section{padding:64px 0}
  .kai-section-sm{padding:48px 0}
}
@media (max-width:575.98px){
  .kai-section{padding:48px 0}
  .kai-section-sm{padding:40px 0}
}

.kai-sec-head{
  max-width:720px;
  margin-bottom:40px;
}
.kai-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(42,93,87,.1);
  color:var(--kai-primary);
  font-size:13px;
  font-weight:500;
  margin-bottom:14px;
}
.kai-sec-title{
  font-size:30px;
  margin-bottom:12px;
}
.kai-sec-sub{
  color:var(--kai-muted);
  font-size:16px;
  margin-bottom:0;
}
@media (max-width:575.98px){
  .kai-sec-title{font-size:22px}
  .kai-sec-head{margin-bottom:28px}
}

/* ---------- 概述 ---------- */
.kai-overview{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:48px;
  align-items:start;
}
.kai-ov-text p{color:var(--kai-text)}
.kai-ov-list{
  list-style:none;
  padding:0;
  margin:24px 0 0;
  display:grid;
  gap:12px;
}
.kai-ov-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--r-card);
  padding:14px 18px;
  font-size:16px;
  box-shadow:var(--shadow-1);
}
.kai-ov-list i{
  color:var(--kai-accent);
  font-size:15px;
  margin-top:6px;
}
.kai-ov-media{
  margin:0;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--r-card);
  padding:12px;
  box-shadow:var(--shadow-1);
}
.kai-ov-media img{
  width:100%;
  border-radius:var(--r-img);
  aspect-ratio:4/3;
  object-fit:cover;
  background:var(--kai-surface-2);
}
.kai-ov-media figcaption{
  font-size:13px;
  color:var(--kai-muted);
  text-align:center;
  padding:12px 4px 4px;
}

@media (max-width:991.98px){
  .kai-overview{grid-template-columns:1fr;gap:32px}
}

/* ---------- 时间轴 ---------- */
.kai-timeline{
  position:relative;
  padding-left:0;
}
.kai-timeline::before{
  content:"";
  position:absolute;
  left:23px;
  top:20px;
  bottom:36px;
  width:2px;
  background:var(--kai-line);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:26px;
  padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:relative;
  z-index:2;
  width:48px;
  height:48px;
  border-radius:50%;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:17px;
  color:var(--kai-primary);
  box-shadow:var(--shadow-1);
}
.tl-item.is-key .tl-num{
  background:var(--kai-accent);
  border-color:var(--kai-accent);
  color:#fff;
}
.tl-card{
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--r-card);
  padding:22px 26px;
  box-shadow:var(--shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.tl-card:hover{
  border-color:var(--kai-primary);
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
}
.tl-card h3{
  font-size:19px;
  margin-bottom:8px;
}
.tl-card p{
  color:var(--kai-muted);
  font-size:16px;
  margin-bottom:0;
}
.tl-meta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:13px;
  color:var(--kai-primary);
  background:rgba(42,93,87,.08);
  padding:4px 12px;
  border-radius:999px;
}

@media (max-width:575.98px){
  .kai-timeline::before{left:19px}
  .tl-item{grid-template-columns:40px 1fr;gap:16px}
  .tl-num{width:40px;height:40px;font-size:15px}
  .tl-card{padding:18px 18px}
}

/* ---------- 准备清单横条 ---------- */
.kai-strip-list{
  display:grid;
  gap:14px;
  margin-top:8px;
}
.kai-strip{
  display:grid;
  grid-template-columns:56px 1fr auto;
  align-items:center;
  gap:22px;
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--r-card);
  padding:20px 24px;
  box-shadow:var(--shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.kai-strip:hover{
  border-color:var(--kai-primary);
  box-shadow:var(--shadow-2);
}
.kai-strip-icon{
  width:56px;
  height:56px;
  border-radius:14px;
  background:var(--kai-surface-2);
  color:var(--kai-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
}
.kai-strip-body h3{
  font-size:18px;
  margin-bottom:4px;
}
.kai-strip-body p{
  color:var(--kai-muted);
  font-size:15px;
  margin-bottom:0;
}
.kai-strip-badge{
  font-size:13px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(192,113,58,.12);
  color:var(--kai-accent-600);
  white-space:nowrap;
}

@media (max-width:767.98px){
  .kai-strip{
    grid-template-columns:48px 1fr;
    gap:16px;
    padding:18px;
  }
  .kai-strip-icon{width:48px;height:48px;font-size:17px}
  .kai-strip-badge{grid-column:2;justify-self:start}
}

/* ---------- 图片展示 ---------- */
.kai-gallery{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  grid-auto-rows:1fr;
  gap:20px;
}
.kai-gallery figure{
  margin:0;
  position:relative;
  overflow:hidden;
  border-radius:var(--r-img);
  background:var(--kai-surface-2);
}
.kai-gallery .g-main{grid-row:span 2}
.kai-gallery img{
  width:100%;
  height:100%;
  min-height:200px;
  object-fit:cover;
  border-radius:var(--r-img);
  transition:transform .4s ease;
}
.kai-gallery figure:hover img{transform:scale(1.03)}
.kai-gallery figcaption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:22px 18px 14px;
  background:linear-gradient(180deg,rgba(20,33,31,0) 0%,rgba(20,33,31,.78) 100%);
  color:#fff;
  font-size:13px;
}
@media (max-width:767.98px){
  .kai-gallery{grid-template-columns:1fr;grid-auto-rows:auto}
  .kai-gallery .g-main{grid-row:auto}
  .kai-gallery img{min-height:180px;aspect-ratio:16/10}
}

/* ---------- FAQ ---------- */
.kai-faq .accordion-item{
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.kai-faq .accordion-item:last-child{margin-bottom:0}
.kai-faq .accordion-button{
  background:var(--kai-surface);
  color:var(--kai-text);
  font-size:18px;
  font-weight:500;
  padding:20px 26px;
  box-shadow:none;
  border-radius:var(--r-card);
}
.kai-faq .accordion-button:not(.collapsed){
  background:var(--kai-surface-2);
  color:var(--kai-primary);
  box-shadow:inset 3px 0 0 var(--kai-accent);
}
.kai-faq .accordion-button:focus{
  box-shadow:0 0 0 2px var(--kai-accent);
  border-color:transparent;
}
.kai-faq .accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:14px;
  width:auto;
  height:auto;
  color:var(--kai-muted);
  transform:rotate(0deg);
  transition:transform .3s ease,color .3s ease;
  line-height:1;
}
.kai-faq .accordion-button:not(.collapsed)::after{
  color:var(--kai-accent);
  transform:rotate(180deg);
}
.kai-faq .accordion-body{
  padding:6px 26px 24px;
  color:var(--kai-muted);
  font-size:16px;
  background:var(--kai-surface);
}
@media (max-width:575.98px){
  .kai-faq .accordion-button{font-size:16px;padding:16px 18px}
  .kai-faq .accordion-body{padding:0 18px 20px}
}

/* ---------- CTA ---------- */
.kai-cta{
  background:var(--kai-ink);
  border-radius:var(--r-big);
  padding:56px;
  color:#fff;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:40px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.kai-cta::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:rgba(192,113,58,.14);
}
.kai-cta-text{position:relative;z-index:2}
.kai-cta-text h2{
  color:#fff;
  font-size:30px;
  margin-bottom:14px;
}
.kai-cta-text p{
  color:rgba(255,255,255,.78);
  margin-bottom:22px;
}
.kai-cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.kai-cta-notes{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  position:relative;
  z-index:2;
  grid-column:1 / -1;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:22px;
}
.kai-cta-notes li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.76);
}
.kai-cta-notes i{color:var(--kai-accent);font-size:13px}

@media (max-width:991.98px){
  .kai-cta{grid-template-columns:1fr;padding:36px 26px;gap:26px}
  .kai-cta-text h2{font-size:24px}
}

/* ---------- 页脚 ---------- */
.kai-footer{
  background:var(--kai-ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  margin-top:0;
}
.kai-footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:44px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.kai-footer .kai-logo{font-size:20px;margin-bottom:14px}
.kai-footer-desc{
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
  max-width:420px;
  margin-bottom:0;
}
.kai-footer h4{
  color:#fff;
  font-size:16px;
  margin-bottom:18px;
}
.kai-footer-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:10px;
}
.kai-footer-list a{
  color:rgba(255,255,255,.72);
  font-size:15px;
}
.kai-footer-list a:hover{color:var(--kai-accent);text-decoration:none}
.kai-footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.52);
}
@media (max-width:991.98px){
  .kai-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .kai-footer-grid>div:first-child{grid-column:1 / -1}
}
@media (max-width:575.98px){
  .kai-footer{padding:48px 0 22px}
  .kai-footer-grid{grid-template-columns:1fr}
}

/* ---------- 移动端固定转化条 ---------- */
.kai-mobilebar{
  display:none;
}
@media (max-width:991.98px){
  .kai-mobilebar{
    display:flex;
    align-items:center;
    gap:12px;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:1040;
    background:var(--kai-ink);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    box-shadow:0 -6px 20px -10px rgba(20,33,31,.5);
  }
  .kai-mobilebar-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:rgba(255,255,255,.82);
    font-size:15px;
    padding:10px 14px;
    border-radius:var(--r-btn);
    background:rgba(255,255,255,.08);
  }
  .kai-mobilebar-link:hover{color:#fff;text-decoration:none;background:rgba(255,255,255,.14)}
  .kai-mobilebar-cta{
    flex:1;
    padding:11px 18px;
  }
}

/* roulang page: category2 */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --shadow-1:0 1px 2px rgba(20,33,31,.06);
  --shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:999px;
  --r-lg:20px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--kai-text);
  background:var(--kai-bg);
}
h1,h2,h3,h4,h5,h6,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--kai-text);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--kai-accent);outline-offset:2px;border-radius:4px}

.kai-container{width:100%;max-width:1140px;margin:0 auto;padding:0 16px}
@media (min-width:1400px){.kai-container{max-width:1200px}}
@media (max-width:1199.98px){.kai-container{max-width:960px}}
@media (max-width:991.98px){.kai-container{max-width:720px;padding:0 16px}}
@media (max-width:575.98px){.kai-container{max-width:100%;padding:0 16px}}
@media (min-width:992px){.kai-container{padding:0 24px}}

/* ============ 导航 ============ */
.kai-header{position:sticky;top:0;z-index:1040;padding:12px 0;background:transparent;transition:background-color .25s ease,backdrop-filter .25s ease}
.kai-header.is-scrolled{background:rgba(247,246,242,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.kai-navpanel{
  display:flex;align-items:center;gap:18px;
  background:var(--kai-ink);
  border-radius:16px;
  padding:10px 14px;
  box-shadow:var(--shadow-1);
  transition:background-color .25s ease,box-shadow .25s ease;
}
.kai-header.is-scrolled .kai-navpanel{background:rgba(20,33,31,.94);box-shadow:var(--shadow-2)}
.kai-logo{
  display:inline-flex;align-items:baseline;gap:1px;
  font-size:20px;font-weight:700;letter-spacing:.02em;
  color:#fff;white-space:nowrap;padding-left:6px;
}
.kai-logo span{color:var(--kai-accent);font-weight:500}
.kai-logo:hover{color:#fff;text-decoration:none}
.kai-navlinks{display:flex;align-items:center;gap:6px;margin-left:auto}
.kai-navlinks a{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:12px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.86);
  font-size:14.5px;font-weight:500;line-height:1.4;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.kai-navlinks a i{font-size:13.5px;opacity:.9}
.kai-navlinks a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.kai-navlinks a.active{
  color:var(--kai-accent);
  background:rgba(192,113,58,.14);
  box-shadow:inset 0 -2px 0 var(--kai-accent);
}
.kai-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:var(--r-btn);
  background:var(--kai-accent);color:#fff;
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.kai-nav-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 6px 16px -8px rgba(192,113,58,.9)}
.kai-burger{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);
  color:#fff;font-size:16px;cursor:pointer;
  transition:background-color .2s ease,color .2s ease;
}
.kai-burger:hover{background:rgba(255,255,255,.16);color:#fff}
.kai-burger:active{background:rgba(255,255,255,.22)}

/* 移动端抽屉 */
.kai-drawer{background:var(--kai-ink);color:#fff;width:330px !important;max-width:88vw;border:0}
.kai-drawer .offcanvas-header{
  padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;
}
.kai-drawer .offcanvas-body{padding:18px 20px 28px}
.kai-drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:15px;cursor:pointer;
  transition:background-color .2s ease;
}
.kai-drawer-close:hover{background:rgba(255,255,255,.16)}
.kai-drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px}
.kai-drawer-grid a{
  display:flex;flex-direction:column;gap:7px;
  padding:14px 12px;border-radius:12px;
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.9);font-size:14px;line-height:1.5;
  transition:background-color .2s ease,color .2s ease;
}
.kai-drawer-grid a i{font-size:16px;color:var(--kai-accent)}
.kai-drawer-grid a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.kai-drawer-grid a.active{background:rgba(192,113,58,.18);color:#fff;box-shadow:inset 0 -2px 0 var(--kai-accent)}
.kai-drawer-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;padding:13px 18px;border-radius:var(--r-btn);
  background:var(--kai-accent);color:#fff;font-size:15.5px;font-weight:600;
  transition:background-color .2s ease,transform .2s ease;
}
.kai-drawer-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px)}

@media (max-width:991.98px){
  .kai-navlinks{display:none}
  .kai-nav-cta{display:none}
  .kai-burger{display:inline-flex;margin-left:auto}
  .kai-navpanel{padding:9px 12px;gap:10px}
}

/* ============ 通用块 ============ */
.kai-section{padding:88px 0}
.kai-section--soft{background:var(--kai-surface-2)}
.kai-section--tight{padding:64px 0}
@media (max-width:767.98px){
  .kai-section{padding:48px 0}
  .kai-section--tight{padding:44px 0}
}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13.5px;font-weight:600;letter-spacing:.06em;
  color:var(--kai-primary);margin-bottom:14px;
}
.kai-eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--kai-accent)}
.kai-h2{
  font-size:30px;line-height:1.35;font-weight:700;letter-spacing:.01em;
  color:var(--kai-text);position:relative;padding-bottom:16px;
}
.kai-h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;border-radius:2px;background:var(--kai-primary)}
.kai-h3{font-size:21px;line-height:1.5;font-weight:600;color:var(--kai-text)}
.kai-sub{font-size:16px;line-height:1.85;color:var(--kai-muted);max-width:760px;margin-top:14px}
@media (max-width:767.98px){
  .kai-h2{font-size:22px}
  .kai-h3{font-size:18.5px}
  .kai-sub{font-size:15.5px}
}

/* ============ 顶部横幅 ============ */
.kai-heropanel{padding-top:26px;padding-bottom:0}
.kai-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13px;color:var(--kai-muted);padding:6px 0 16px;
}
.kai-crumb a{color:var(--kai-muted)}
.kai-crumb a:hover{color:var(--kai-primary)}
.kai-crumb .sep{opacity:.55}
.kai-crumb .now{color:var(--kai-text);font-weight:500}

.kai-hero{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:300px;display:flex;align-items:center;
  background:var(--kai-ink) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  box-shadow:var(--shadow-2);
}
.kai-hero::after{content:"";position:absolute;inset:0;background:rgba(20,33,31,.58)}
.kai-hero-inner{position:relative;z-index:2;width:100%;max-width:800px;padding:50px 44px;color:#fff}
.kai-hero h1{font-size:36px;line-height:1.32;font-weight:700;color:#fff;letter-spacing:.01em}
.kai-hero p{font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.86);margin-top:14px;max-width:620px}
.kai-hero .kai-eyebrow{color:var(--kai-accent);margin-bottom:16px}
@media (max-width:991.98px){
  .kai-hero-inner{padding:36px 26px}
  .kai-hero h1{font-size:28px}
}
@media (max-width:575.98px){
  .kai-hero{min-height:250px}
  .kai-hero-inner{padding:30px 20px}
  .kai-hero h1{font-size:23px;line-height:1.4}
  .kai-hero p{font-size:15px}
}

/* ============ 概述 ============ */
.kai-prose{max-width:760px}
.kai-prose p{font-size:17px;line-height:1.85;color:var(--kai-text)}
.kai-prose p + p{margin-top:1.15em}
.kai-statgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.kai-stat{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.kai-stat:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.kai-stat b{display:block;font-size:30px;line-height:1.2;font-weight:700;color:var(--kai-accent);letter-spacing:.01em}
.kai-stat span{display:block;margin-top:6px;font-size:14px;color:var(--kai-muted);line-height:1.7}
@media (max-width:767.98px){.kai-statgrid{grid-template-columns:1fr;gap:12px;margin-top:26px}}

/* ============ 图片展示 ============ */
.kai-gallery{display:grid;grid-template-columns:1.32fr 1fr;gap:20px;margin-top:36px}
.kai-gallery figure{
  margin:0;background:var(--kai-surface-2);border:1px solid var(--kai-line);
  border-radius:var(--r-img);overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);transition:border-color .25s ease,box-shadow .25s ease;
}
.kai-gallery figure:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2)}
.kai-gallery .g-main{grid-row:span 2}
.kai-gallery .g-main img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .4s ease}
.kai-gallery .g-side img{width:100%;height:100%;min-height:150px;object-fit:cover;transition:transform .4s ease}
.kai-gallery figure:hover img{transform:scale(1.03)}
.kai-gallery figcaption{
  padding:12px 16px;font-size:13.5px;line-height:1.7;color:var(--kai-muted);
  background:var(--kai-surface);border-top:1px solid var(--kai-line);
}
@media (max-width:767.98px){
  .kai-gallery{grid-template-columns:1fr;gap:14px}
  .kai-gallery .g-main{grid-row:auto}
  .kai-gallery .g-main img{min-height:200px}
}

/* ============ 要点卡（2+1 错位） ============ */
.kai-points{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;margin-top:36px}
.kai-point{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--r-card);padding:30px 28px;box-shadow:var(--shadow-1);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.kai-point:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.kai-point:nth-child(1){grid-column:span 7}
.kai-point:nth-child(2){grid-column:span 5}
.kai-point:nth-child(3){grid-column:span 12}
.kai-point .ico{
  width:46px;height:46px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--kai-surface-2);color:var(--kai-primary);font-size:18px;
  margin-bottom:18px;
}
.kai-point h3{font-size:20px;line-height:1.5;font-weight:600;margin-bottom:12px}
.kai-point p{font-size:15.5px;line-height:1.85;color:var(--kai-muted)}
.kai-point--wide{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:26px;align-items:start}
.kai-point--wide .ico{margin-bottom:14px}
@media (max-width:991.98px){
  .kai-points{grid-template-columns:1fr;gap:14px}
  .kai-point,
  .kai-point:nth-child(1),
  .kai-point:nth-child(2),
  .kai-point:nth-child(3){grid-column:1 / -1}
  .kai-point--wide{grid-template-columns:1fr;gap:10px}
  .kai-point{padding:24px 22px}
}

/* ============ 流程清单 ============ */
.kai-flow{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.kai-flow-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.kai-flow-item:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.kai-flow-item .idx{
  flex:0 0 auto;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--kai-surface-2);color:var(--kai-primary);
  font-size:15px;font-weight:700;
}
.kai-flow-item h3{font-size:17px;font-weight:600;line-height:1.6;margin-bottom:6px}
.kai-flow-item p{font-size:14.5px;line-height:1.8;color:var(--kai-muted)}
@media (max-width:767.98px){
  .kai-flow{grid-template-columns:1fr;gap:12px;margin-top:26px}
  .kai-flow-item{padding:18px 18px}
}

/* ============ FAQ ============ */
.kai-faq{margin-top:34px;max-width:860px}
.kai-faq .accordion-item{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.kai-faq .accordion-item:hover{border-color:var(--kai-primary);box-shadow:var(--shadow-2)}
.kai-faq .accordion-button{
  background:var(--kai-surface);color:var(--kai-text);
  font-size:17px;font-weight:600;line-height:1.7;
  padding:20px 52px 20px 22px;border-radius:var(--r-card) !important;
  box-shadow:none;
}
.kai-faq .accordion-button:not(.collapsed){
  color:var(--kai-primary);background:var(--kai-surface);
  box-shadow:inset 3px 0 0 var(--kai-accent);
}
.kai-faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.kai-faq .accordion-button:focus-visible{outline:2px solid var(--kai-accent);outline-offset:-4px}
.kai-faq .accordion-button::after{
  width:15px;height:15px;background-size:15px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%232A5D57' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 8h10'/%3E%3Cpath d='M8 3v10'/%3E%3C/svg%3E");
  transition:transform .3s ease;
}
.kai-faq .accordion-button:not(.collapsed)::after{
  transform:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23C0713A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 8h10'/%3E%3C/svg%3E");
}
.kai-faq .accordion-body{
  padding:0 24px 22px 25px;
  font-size:15.5px;line-height:1.85;color:var(--kai-muted);
}
.kai-faq .accordion-body p + p{margin-top:10px}
@media (max-width:575.98px){
  .kai-faq .accordion-button{font-size:15.5px;padding:16px 46px 16px 16px}
  .kai-faq .accordion-body{padding:0 18px 18px 19px;font-size:15px}
}

/* ============ 按钮 ============ */
.kai-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.kai-btn-accent{background:var(--kai-accent);color:#fff}
.kai-btn-accent:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 20px -10px rgba(192,113,58,.95)}
.kai-btn-accent:active{transform:translateY(0)}
.kai-btn-outline{border-color:rgba(255,255,255,.36);color:#fff;background:transparent}
.kai-btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-btn-ghost{border-color:var(--kai-primary);color:var(--kai-primary);background:transparent}
.kai-btn-ghost:hover{background:var(--kai-primary);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-btn:disabled,.kai-btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ CTA ============ */
.kai-cta{
  background:var(--kai-ink);border-radius:var(--r-lg);
  padding:46px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
  position:relative;overflow:hidden;
}
.kai-cta::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(192,113,58,.22),transparent 70%);
}
.kai-cta-text{position:relative;z-index:2;max-width:620px}
.kai-cta h2{font-size:26px;line-height:1.45;font-weight:700;color:#fff;padding:0}
.kai-cta h2::after{display:none}
.kai-cta p{margin-top:12px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.78)}
.kai-cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:767.98px){
  .kai-cta{padding:30px 22px;gap:22px}
  .kai-cta h2{font-size:21px}
  .kai-cta-actions{width:100%}
  .kai-cta-actions .kai-btn{flex:1}
}

/* ============ 页脚 ============ */
.kai-footer{background:var(--kai-ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0}
.kai-footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.kai-footer .kai-logo{padding-left:0;font-size:20px;display:inline-flex}
.kai-footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;max-width:420px;color:rgba(255,255,255,.66)}
.kai-footer h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px}
.kai-footer-list{display:grid;gap:11px}
.kai-footer-list a{color:rgba(255,255,255,.72);font-size:14.5px}
.kai-footer-list a:hover{color:var(--kai-accent);text-decoration:none}
.kai-footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.5);
}
@media (max-width:767.98px){
  .kai-footer{padding:46px 0 24px}
  .kai-footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:26px}
}

/* ============ 移动端固定转化条 ============ */
.kai-mobilebar{display:none}
@media (max-width:991.98px){
  body{padding-bottom:76px}
  .kai-mobilebar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1030;gap:10px;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    background:var(--kai-ink);
    box-shadow:0 -10px 26px -16px rgba(20,33,31,.85);
  }
  .kai-mobilebar a{
    flex:1;text-align:center;padding:11px 8px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;
  }
  .kai-mobilebar .mb-primary{background:var(--kai-accent);color:#fff}
  .kai-mobilebar .mb-primary:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none}
  .kai-mobilebar .mb-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.2)}
  .kai-mobilebar .mb-ghost:hover{background:rgba(255,255,255,.18);color:#fff;text-decoration:none}
}

/* roulang page: category4 */
:root{
  --kai-ink:#14211F;
  --kai-primary:#2A5D57;
  --kai-primary-600:#1F4844;
  --kai-accent:#C0713A;
  --kai-accent-600:#A55C2C;
  --kai-bg:#F7F6F2;
  --kai-surface:#FFFFFF;
  --kai-surface-2:#EEF2EF;
  --kai-line:#DCE3DF;
  --kai-text:#1D2B29;
  --kai-muted:#5C6B68;
  --kai-r-card:14px;
  --kai-r-img:12px;
  --kai-r-btn:10px;
  --kai-r-badge:999px;
  --kai-r-wrap:20px;
  --kai-shadow-1:0 1px 2px rgba(20,33,31,.06);
  --kai-shadow-2:0 10px 30px -12px rgba(20,33,31,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--kai-bg);
  color:var(--kai-text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--kai-text);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--kai-primary);text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.005em}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--kai-accent);outline-offset:2px}
::selection{background:rgba(192,113,58,.24)}

.kai-container{width:100%;margin:0 auto;padding:0 16px}
@media (min-width:768px){.kai-container{max-width:720px;padding:0 24px}}
@media (min-width:992px){.kai-container{max-width:960px}}
@media (min-width:1200px){.kai-container{max-width:1140px}}
@media (min-width:1400px){.kai-container{max-width:1200px}}

/* ---------- 导航 ---------- */
.kai-header{position:sticky;top:0;z-index:1040;padding:12px 0 0}
.kai-navpanel{
  display:flex;align-items:center;gap:18px;
  background:var(--kai-ink);
  border-radius:16px;
  padding:10px 14px;
  box-shadow:var(--kai-shadow-1);
  transition:background .3s ease,box-shadow .3s ease;
}
.kai-header.is-scrolled .kai-navpanel{background:rgba(20,33,31,.95);box-shadow:var(--kai-shadow-2)}
.kai-logo{
  display:inline-flex;align-items:baseline;gap:2px;
  color:#fff;font-size:20px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.kai-logo span{font-weight:400;color:rgba(255,255,255,.86)}
.kai-logo:hover{color:#fff;text-decoration:none}
.kai-logo::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--kai-accent);margin-left:4px}
.kai-navlinks{display:flex;align-items:center;gap:8px;margin-left:auto}
.kai-navlinks a{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:12px;
  font-size:14.5px;color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.06);
  position:relative;
  transition:background .22s ease,color .22s ease;
}
.kai-navlinks a i{font-size:15px;opacity:.9}
.kai-navlinks a:hover{background:rgba(255,255,255,.12);color:#fff;text-decoration:none}
.kai-navlinks a.active{color:var(--kai-accent);background:rgba(255,255,255,.1)}
.kai-navlinks a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--kai-accent);border-radius:2px;
}
.kai-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--kai-accent);color:#fff;
  border-radius:var(--kai-r-btn);
  padding:10px 20px;font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .22s ease,transform .22s ease;
}
.kai-nav-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none;transform:translateY(-1px)}
.kai-burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;border-radius:12px;font-size:17px;
  transition:background .22s ease;
}
.kai-burger:hover{background:rgba(255,255,255,.16)}
@media (max-width:991.98px){
  .kai-navlinks{display:none}
  .kai-nav-cta{display:none}
  .kai-burger{display:inline-flex;margin-left:auto}
}
.kai-drawer{background:var(--kai-ink);color:#fff;width:330px}
.kai-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 20px}
.kai-drawer .offcanvas-title{color:#fff;font-size:18px}
.kai-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.8);opacity:.8}
.kai-drawer .btn-close:focus{box-shadow:0 0 0 2px var(--kai-accent)}
.kai-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:16px}
.kai-drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.kai-drawer-grid a{
  display:flex;flex-direction:column;gap:6px;
  padding:14px 12px;border-radius:12px;
  background:rgba(255,255,255,.06);color:rgba(255,255,255,.9);
  font-size:14px;line-height:1.5;
}
.kai-drawer-grid a i{font-size:17px;color:var(--kai-accent)}
.kai-drawer-grid a:hover{background:rgba(255,255,255,.13);color:#fff;text-decoration:none}
.kai-drawer-grid a.active{background:rgba(192,113,58,.22);color:#fff}
.kai-drawer-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;
  background:var(--kai-accent);color:#fff;border-radius:var(--kai-r-btn);
  padding:13px;font-weight:600;
}
.kai-drawer-cta:hover{background:var(--kai-accent-600);color:#fff;text-decoration:none}

/* ---------- 分类 Hero ---------- */
.kai-cat-hero{
  position:relative;margin-top:12px;
  min-height:300px;display:flex;align-items:center;
  border-radius:var(--kai-r-wrap);overflow:hidden;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat,var(--kai-surface-2);
}
.kai-cat-hero::before{content:"";position:absolute;inset:0;background:rgba(20,33,31,.55)}
.kai-cat-hero .kai-container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
.kai-crumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:14px}
.kai-crumb a{color:rgba(255,255,255,.78)}
.kai-crumb a:hover{color:#fff}
.kai-crumb span{color:#fff}
.kai-cat-hero h1{color:#fff;font-size:40px;font-family:'Noto Serif SC','Noto Sans SC',serif;letter-spacing:.02em}
.kai-hero-sub{color:rgba(255,255,255,.9);font-size:17px;margin:14px 0 0;max-width:640px}
.kai-hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.kai-hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid rgba(255,255,255,.34);color:#fff;
  border-radius:var(--kai-r-badge);padding:5px 13px;font-size:13px;
  background:rgba(255,255,255,.08);
}
@media (max-width:767.98px){
  .kai-cat-hero{border-radius:16px;min-height:260px}
  .kai-cat-hero h1{font-size:28px}
  .kai-cat-hero .kai-container{padding-top:40px;padding-bottom:40px}
}

/* ---------- 板块 ---------- */
.kai-section{padding:88px 0}
.kai-section--sub{padding:64px 0}
.kai-section--tint{background:var(--kai-surface-2)}
.kai-section--ink{background:var(--kai-ink);color:#fff}
@media (max-width:991.98px){.kai-section{padding:64px 0}.kai-section--sub{padding:48px 0}}
@media (max-width:575.98px){.kai-section{padding:48px 0}.kai-section--sub{padding:40px 0}}
.kai-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:var(--kai-primary);
  text-transform:uppercase;margin-bottom:12px;
}
.kai-eyebrow::before{content:"";width:22px;height:2px;background:var(--kai-accent);border-radius:2px}
.kai-h2{font-size:30px;margin-bottom:14px}
.kai-lead{color:var(--kai-muted);max-width:760px;font-size:17px}
@media (max-width:991.98px){.kai-h2{font-size:24px}}
@media (max-width:575.98px){.kai-h2{font-size:22px}}

/* ---------- 通用卡片 ---------- */
.kai-card{
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.kai-card:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2)}
.kai-card-pad{padding:26px}
.kai-badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--kai-r-badge);
  padding:4px 12px;font-size:13px;
  background:rgba(42,93,87,.1);color:var(--kai-primary-600);
}
.kai-badge--accent{background:rgba(192,113,58,.14);color:var(--kai-accent-600)}

/* ---------- 概述区 ---------- */
.kai-overview{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
@media (max-width:991.98px){.kai-overview{grid-template-columns:1fr;gap:26px}}
.kai-overview p{max-width:740px}
.kai-overview a{color:var(--kai-primary);font-weight:600}
.kai-overview a:hover{color:var(--kai-accent-600)}
.kai-side-card{background:var(--kai-surface);border:1px solid var(--kai-line);border-radius:var(--kai-r-card);overflow:hidden;box-shadow:var(--kai-shadow-1)}
.kai-side-card img{border-radius:0;aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--kai-surface-2)}
.kai-side-body{padding:22px}
.kai-side-body h3{font-size:19px;margin-bottom:14px}
.kai-checklist li{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 0;border-bottom:1px dashed var(--kai-line);font-size:15.5px;color:var(--kai-text);
}
.kai-checklist li:last-child{border-bottom:none}
.kai-checklist i{color:var(--kai-accent);font-size:13px;margin-top:8px}

/* ---------- 数据条 ---------- */
.kai-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  margin-top:40px;
}
.kai-stat{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);padding:22px 20px;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.kai-stat:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2)}
.kai-stat b{display:block;font-size:30px;color:var(--kai-accent);line-height:1.2;letter-spacing:.01em}
.kai-stat span{display:block;font-size:14px;color:var(--kai-muted);margin-top:8px}
@media (max-width:767.98px){.kai-stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:419.98px){.kai-stats{grid-template-columns:1fr}}

/* ---------- 对比卡 ---------- */
.kai-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:36px}
.kai-compare-card{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);padding:28px;
  box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
  height:100%;
}
.kai-compare-card:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2);transform:translateY(-2px)}
.kai-compare-card.is-accent{border-top:3px solid var(--kai-accent)}
.kai-compare-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.kai-compare-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(42,93,87,.1);color:var(--kai-primary);font-size:18px;
}
.kai-compare-card.is-accent .kai-compare-icon{background:rgba(192,113,58,.14);color:var(--kai-accent-600)}
.kai-compare-head h3{font-size:20px}
.kai-compare-card p{color:var(--kai-muted);font-size:15.5px;margin-top:10px}
.kai-compare-list{margin-top:16px}
.kai-compare-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;font-size:15.5px}
.kai-compare-list i{color:var(--kai-primary);font-size:13px;margin-top:8px}
.kai-compare-card.is-accent .kai-compare-list i{color:var(--kai-accent)}
@media (max-width:767.98px){.kai-compare{grid-template-columns:1fr;gap:18px}}

/* ---------- 引用卡 ---------- */
.kai-quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:36px}
.kai-quote{
  background:var(--kai-surface);border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);padding:26px;
  box-shadow:var(--kai-shadow-1);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.kai-quote:nth-child(1){transform:rotate(-.5deg)}
.kai-quote:nth-child(2){transform:rotate(.4deg)}
.kai-quote:nth-child(3){transform:rotate(-.3deg)}
.kai-quote:hover{border-color:var(--kai-primary);box-shadow:var(--kai-shadow-2)}
.kai-quote blockquote{margin:0;font-size:16px;color:var(--kai-text)}
.kai-quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--kai-line)}
.kai-avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:600;background:var(--kai-primary);
}
.kai-quote:nth-child(2) .kai-avatar{background:var(--kai-accent)}
.kai-quote:nth-child(3) .kai-avatar{background:var(--kai-primary-600)}
.kai-quote-foot span{font-size:14px;color:var(--kai-muted);display:block;line-height:1.5}
.kai-quote-foot strong{display:block;font-size:15px;color:var(--kai-text)}
@media (max-width:991.98px){.kai-quotes{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.kai-quotes{grid-template-columns:1fr}.kai-quote{transform:none!important}}

/* ---------- 速查清单横条 ---------- */
.kai-strip{
  margin-top:36px;background:var(--kai-surface);
  border:1px solid var(--kai-line);border-radius:var(--kai-r-wrap);
  padding:8px 6px;box-shadow:var(--kai-shadow-1);
}
.kai-strip ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
.kai-strip li{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-right:1px dashed var(--kai-line)}
.kai-strip li:last-child{border-right:none}
.kai-strip b{
  font-size:20px;color:var(--kai-primary);opacity:.42;line-height:1.2;font-weight:700;
}
.kai-strip span{font-size:15px;display:block}
.kai-strip small{display:block;color:var(--kai-muted);font-size:13.5px;margin-top:4px;line-height:1.6}
@media (max-width:991.98px){
  .kai-strip ol{grid-template-columns:1fr 1fr}
  .kai-strip li{border-right:none;border-bottom:1px dashed var(--kai-line)}
  .kai-strip li:nth-child(2n){border-bottom:none}
  .kai-strip li:nth-last-child(-n+2){border-bottom:none}
}
@media (max-width:575.98px){
  .kai-strip ol{grid-template-columns:1fr}
  .kai-strip li{border-bottom:1px dashed var(--kai-line)!important}
  .kai-strip li:last-child{border-bottom:none!important}
}

/* ---------- FAQ ---------- */
.kai-faq-wrap{max-width:860px;margin:36px auto 0}
.kai-accordion .accordion-item{
  background:var(--kai-surface);
  border:1px solid var(--kai-line);
  border-radius:var(--kai-r-card);
  margin-bottom:14px;overflow:hidden;
  box-shadow:var(--kai-shadow-1);
}
.kai-accordion .accordion-item:hover{border-color:var(--kai-primary)}
.kai-accordion .accordion-button{
  position:relative;
  background:var(--kai-surface);color:var(--kai-text);
  font-size:17px;font-weight:600;
  padding:18px 54px 18px 22px;
  box-shadow:none;border-radius:0;
}
.kai-accordion .accordion-button:not(.collapsed){color:var(--kai-primary)}
.kai-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--kai-accent);border-radius:0 3px 3px 0;
}
.kai-accordion .accordion-button:focus{box-shadow:0 0 0 2px var(--kai-accent);z-index:3}
.kai-accordion .accordion-button::after{
  position:absolute;right:20px;
  width:16px;height:16px;background-size:16px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%232A5D57' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M8 3v10M3 8h10'/%3E%3C/svg%3E");
  transition:transform .3s ease;
}
.kai-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23C0713A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M8 3v10M3 8h10'/%3E%3C/svg%3E");
}
.kai-accordion .accordion-body{
  padding:0 22px 22px;color:var(--kai-muted);font-size:16px;
}
.kai-accordion .accordion-body a{color:var(--kai-primary);font-weight:600}
.kai-accordion .accordion-body a:hover{color:var(--kai-accent-600)}

/* ---------- CTA 表单 ---------- */
.kai-cta-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start}
@media (max-width:991.98px){.kai-cta-grid{grid-template-columns:1fr;gap:30px}}
.kai-section--ink .kai-h2,.kai-section--ink h2{color:#fff}
.kai-section--ink .kai-lead{color:rgba(255,255,255,.78)}
.kai-section--ink .kai-eyebrow{color:rgba(255,255,255,.82)}
.kai-cta-points{margin-top:26px;display:grid;gap:12px}
.kai-cta-points li{display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.86);font-size:15.5px}
.kai-cta-points i{color:var(--kai-accent);margin-top:7px;font-size:13px}
.kai-form-card{
  background:var(--kai-surface);border-radius:var(--kai-r-wrap);
  padding:30px;box-shadow:var(--kai-shadow-2);
}
.kai-form-card h3{font-size:21px;margin-bottom:6px}
.kai-form-card .kai-form-tip{font-size:14px;color:var(--kai-muted);margin-bottom:20px}
.kai-form .form-label{font-size:14px;font-weight:600;color:var(--kai-muted);margin-bottom:6px}
.kai-form .form-control{
  border:1px solid var(--kai-line);border-radius:var(--kai-r-btn);
  padding:12px 14px;font-size:16px;color:var(--kai-text);background:#fff;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.kai-form .form-control::placeholder{color:#9AA6A2}
.kai-form .form-control:hover{border-color:var(--kai-primary)}
.kai-form .form-control:focus{border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(42,93,87,.14);outline:none}
.kai-form .form-control.is-invalid{border-color:var(--kai-accent);background:rgba(192,113,58,.05)}
.kai-form .form-text{font-size:13px;color:var(--kai-muted)}
.kai-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--kai-r-btn);padding:13px 26px;
  font-size:16px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.kai-btn--accent{background:var(--kai-accent);color:#fff;border-color:var(--kai-accent)}
.kai-btn--accent:hover{background:var(--kai-accent-600);border-color:var(--kai-accent-600);color:#fff;transform:translateY(-1px);text-decoration:none}
.kai-btn--accent:active{transform:translateY(0);background:var(--kai-accent-600)}
.kai-btn--ghost{background:transparent;color:var(--kai-primary);border-color:var(--kai-primary)}
.kai-btn--ghost:hover{background:rgba(42,93,87,.08);color:var(--kai-primary-600);border-color:var(--kai-primary-600);transform:translateY(-1px);text-decoration:none}
.kai-btn--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.kai-btn--light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;text-decoration:none}
.kai-btn[disabled],.kai-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.kai-btn-block{width:100%}
.kai-form-feedback{
  display:none;margin-top:14px;padding:12px 16px;border-radius:var(--kai-r-btn);
  font-size:14.5px;background:rgba(42,93,87,.09);color:var(--kai-primary-600);
}
.kai-form-feedback.is-show{display:block}
.kai-form-feedback.is-error{background:rgba(192,113,58,.12);color:var(--kai-accent-600)}

/* ---------- 内联提示条 ---------- */
.kai-note{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--kai-surface-2);border:1px solid var(--kai-line);
  border-left:3px solid var(--kai-accent);
  border-radius:var(--kai-r-card);
  padding:20px 22px;margin-top:32px;font-size:15.5px;color:var(--kai-text);
}
.kai-note i{color:var(--kai-accent);font-size:16px;margin-top:6px}
.kai-note a{color:var(--kai-primary);font-weight:600}

/* ---------- 页脚 ---------- */
.kai-footer{background:var(--kai-ink);color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0}
.kai-footer .kai-logo{font-size:19px}
.kai-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
@media (max-width:767.98px){.kai-footer-grid{grid-template-columns:1fr;gap:28px}}
.kai-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.kai-footer-desc{margin-top:16px;font-size:15px;line-height:1.8;max-width:420px;color:rgba(255,255,255,.68)}
.kai-footer-list li{margin-bottom:10px}
.kai-footer-list a{color:rgba(255,255,255,.78);font-size:15px}
.kai-footer-list a:hover{color:#fff}
.kai-footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.58);
}
@media (max-width:575.98px){.kai-footer{padding:48px 0 24px}.kai-footer-bottom{flex-direction:column;gap:6px}}

/* ---------- 移动端固定转化条 ---------- */
.kai-mobilebar{
  position:fixed;left:0;right:0;bottom:0;z-index:1035;
  display:none;gap:10px;align-items:center;
  background:var(--kai-ink);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  box-shadow:0 -8px 24px -14px rgba(20,33,31,.6);
}
.kai-mobilebar span{color:rgba(255,255,255,.82);font-size:13.5px;line-height:1.4;flex:1}
.kai-mobilebar .kai-btn{padding:11px 18px;font-size:15px;flex:0 0 auto}
@media (max-width:991.98px){
  .kai-mobilebar{display:flex}
  body{padding-bottom:76px}
}