/* roulang page: index */
:root{
  --kai-primary:#1F7A6B;
  --kai-primary-dark:#0E4F46;
  --kai-primary-soft:#E7F3EF;
  --kai-ink:#17231F;
  --kai-accent:#E08A4C;
  --kai-bg:#F7F4EE;
  --kai-surface:#FFFFFF;
  --kai-sand:#EFE7DA;
  --kai-line:#D9D2C7;
  --kai-muted:#5C6B64;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --sh-sm:0 8px 24px rgba(23,35,31,.06);
  --sh-md:0 14px 36px rgba(23,35,31,.12);
  --sh-dark:0 12px 32px rgba(0,0,0,.18);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--kai-ink);
  background-color:var(--kai-bg);
  background-image:linear-gradient(rgba(31,122,107,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(31,122,107,.035) 1px,transparent 1px);
  background-size:36px 36px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--kai-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--kai-primary-dark);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{padding-left:1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid rgba(31,122,107,.55);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.section{padding:84px 0;}
.section-sand{background:var(--kai-sand);}
.section-dark{background:var(--kai-ink);color:var(--kai-bg);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.section-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--kai-primary);background:var(--kai-primary-soft);border-radius:999px;padding:6px 14px;margin-bottom:14px;}
.section-title{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.2;}
.section-sub{color:var(--kai-muted);font-size:15px;margin-top:10px;max-width:640px;}
.section-dark .section-sub{color:rgba(247,244,238,.72);}
.section-dark .section-tag{background:rgba(31,122,107,.28);color:#BFE3DA;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,244,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--kai-line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--kai-ink);flex:0 0 auto;}
.brand:hover{color:var(--kai-ink);}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,var(--kai-primary),var(--kai-primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;box-shadow:var(--sh-sm);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:-.02em;}
.brand-text span{font-size:11px;color:var(--kai-muted);letter-spacing:.14em;text-transform:uppercase;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-menu > li{position:relative;}
.nav-link-kai{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--kai-ink);position:relative;}
.nav-link-kai:hover{color:var(--kai-primary);background:rgba(31,122,107,.07);}
.nav-link-kai.active{color:var(--kai-primary);background:rgba(31,122,107,.09);}
.nav-link-kai.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--kai-primary);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--kai-line);background:#fff;color:var(--kai-ink);align-items:center;justify-content:center;}
.mega-panel{position:absolute;right:0;top:calc(100% + 14px);width:720px;background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);box-shadow:0 18px 48px rgba(23,35,31,.14);padding:26px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col{padding:0 20px;border-right:1px solid var(--kai-line);}
.mega-col:first-child{padding-left:0;}
.mega-col:last-child{padding-right:0;border-right:none;}
.mega-col h4{font-size:13px;letter-spacing:.08em;color:var(--kai-muted);text-transform:uppercase;margin-bottom:14px;font-weight:600;}
.mega-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.mega-col ul a{font-size:14px;color:var(--kai-ink);display:block;}
.mega-col ul a:hover{color:var(--kai-primary);}
.mega-item{display:flex;align-items:center;gap:12px;padding:10px;border-radius:12px;background:var(--kai-bg);margin-bottom:10px;color:var(--kai-ink);}
.mega-item:hover{background:var(--kai-primary-soft);color:var(--kai-primary-dark);}
.mega-item i{color:var(--kai-primary);}
.mega-time{font-size:13px;color:var(--kai-muted);}
.mega-note{font-size:13px;color:var(--kai-muted);margin-top:6px;}

/* 按钮 */
.btn-kai{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--r-btn);background:var(--kai-primary);color:#fff;font-weight:600;font-size:15px;border:1.5px solid var(--kai-primary);transition:all .2s ease;cursor:pointer;}
.btn-kai:hover{background:var(--kai-primary-dark);border-color:var(--kai-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,122,107,.28);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--r-btn);background:transparent;color:var(--kai-primary);font-weight:600;font-size:15px;border:1.5px solid var(--kai-primary);transition:all .2s ease;cursor:pointer;}
.btn-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-dark);}
.btn-ghost-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--r-btn);background:transparent;color:#fff;font-weight:600;font-size:15px;border:1.5px solid rgba(255,255,255,.4);transition:all .2s ease;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;color:var(--kai-primary);}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover{color:var(--kai-accent);text-decoration:underline;text-underline-offset:4px;}
.btn-text:hover i{transform:translateX(3px);}
.btn-accent{background:var(--kai-accent);border-color:var(--kai-accent);}
.btn-accent:hover{background:#c9743a;border-color:#c9743a;}
.btn-kai:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible{outline:2px solid rgba(31,122,107,.28);outline-offset:2px;}

/* Hero */
.hero{position:relative;padding:76px 0 68px;overflow:hidden;background:linear-gradient(180deg,#FBF9F5 0%,var(--kai-bg) 100%);}
.hero::before{content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border:1px solid rgba(31,122,107,.16);border-radius:50%;pointer-events:none;}
.hero::after{content:"";position:absolute;right:40px;bottom:-160px;width:340px;height:340px;border:1px dashed rgba(224,138,76,.24);border-radius:50%;pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--kai-primary-dark);background:#fff;border:1px solid var(--kai-line);border-radius:999px;padding:7px 16px;box-shadow:var(--sh-sm);margin-bottom:20px;}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--kai-accent);}
.hero h1{font-size:clamp(2rem,4.5vw,3.25rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;}
.hero h1 em{font-style:normal;color:var(--kai-primary);}
.hero-sub{font-size:17px;color:var(--kai-muted);margin:16px 0 28px;max-width:520px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;}
.trust-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--kai-line);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--kai-ink);box-shadow:var(--sh-sm);}
.trust-badge i{color:var(--kai-primary);}
.hero-media{position:relative;}
.hero-media img{border-radius:20px;box-shadow:var(--sh-md);width:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-float{position:absolute;left:-22px;bottom:28px;background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);box-shadow:var(--sh-md);padding:16px 20px;display:flex;align-items:center;gap:14px;max-width:280px;}
.hero-float i{width:40px;height:40px;border-radius:12px;background:var(--kai-primary-soft);color:var(--kai-primary);display:flex;align-items:center;justify-content:center;font-size:18px;}
.hero-float strong{display:block;font-size:15px;}
.hero-float span{font-size:13px;color:var(--kai-muted);}

/* 数据条 */
.stat-bar{background:var(--kai-ink);color:var(--kai-bg);border-radius:var(--r-card);padding:32px 12px;box-shadow:var(--sh-dark);display:grid;grid-template-columns:repeat(4,1fr);margin-top:-40px;position:relative;z-index:5;}
.stat-item{text-align:center;padding:0 16px;border-right:1px solid rgba(247,244,238,.14);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-num em{font-style:normal;color:var(--kai-accent);font-size:.55em;margin-left:2px;}
.stat-label{font-size:13px;color:rgba(247,244,238,.66);margin-top:4px;}

/* 卖点 Bento */
.bento{display:grid;grid-template-columns:1.15fr 1fr;gap:var(--gap);}
.bento-main{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:34px;display:flex;flex-direction:column;gap:18px;}
.bento-main img{border-radius:var(--r-img);aspect-ratio:16/9;object-fit:cover;width:100%;}
.bento-main h3{font-size:1.4rem;}
.bento-main p{color:var(--kai-muted);font-size:15px;}
.bento-side{display:grid;gap:var(--gap);}
.bento-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);box-shadow:var(--sh-sm);padding:28px;display:flex;gap:18px;align-items:flex-start;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(31,122,107,.32);}
.bento-icon{flex:0 0 auto;width:48px;height:48px;border-radius:14px;background:var(--kai-primary-soft);color:var(--kai-primary);display:flex;align-items:center;justify-content:center;font-size:20px;}
.bento-card h3{font-size:1.25rem;margin-bottom:6px;}
.bento-card p{font-size:14.5px;color:var(--kai-muted);margin-bottom:12px;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.tag-kai{display:inline-flex;align-items:center;font-size:12.5px;padding:5px 12px;border-radius:999px;background:var(--kai-sand);color:#6B5A44;border:1px solid rgba(224,138,76,.28);}
.tag-kai.green{background:var(--kai-primary-soft);color:var(--kai-primary-dark);border-color:rgba(31,122,107,.24);}

/* 步骤时间线 */
.steps-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start;}
.step{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:24px 0;border-bottom:1px dashed var(--kai-line);}
.step:last-child{border-bottom:none;}
.step-no{width:56px;height:56px;border-radius:16px;background:#fff;border:1px solid var(--kai-line);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;color:var(--kai-accent);box-shadow:var(--sh-sm);position:relative;}
.step-no::after{content:"";position:absolute;left:50%;top:100%;width:1px;height:calc(100% + 24px);background:linear-gradient(180deg,rgba(31,122,107,.35),rgba(31,122,107,0));transform:translateX(-50%);}
.step:last-child .step-no::after{display:none;}
.step h3{font-size:1.25rem;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--kai-muted);}
.steps-gallery{display:grid;gap:18px;position:sticky;top:104px;}
.steps-gallery figure{margin:0;background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);}
.steps-gallery img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.steps-gallery figcaption{font-size:13px;color:var(--kai-muted);padding:12px 16px;border-top:1px solid var(--kai-line);}

/* 分类入口 */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.cat-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);}
.cat-card img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.cat-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cat-body h3{font-size:1.15rem;}
.cat-body p{font-size:14px;color:var(--kai-muted);flex:1;}
.cat-index{font-size:12px;font-weight:700;color:var(--kai-accent);letter-spacing:.1em;}

/* 社会认同 */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.quote-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;gap:18px;transition:transform .2s ease,box-shadow .2s ease;}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.quote-text{font-size:15px;color:var(--kai-ink);}
.quote-person{display:flex;align-items:center;gap:14px;border-top:1px solid var(--kai-line);padding-top:16px;}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--kai-primary-soft);color:var(--kai-primary-dark);display:flex;align-items:center;justify-content:center;font-weight:700;}
.quote-person strong{display:block;font-size:15px;}
.quote-person span{font-size:13px;color:var(--kai-muted);}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:36px;}
.logo-chip{background:#fff;border:1px solid var(--kai-line);border-radius:12px;height:64px;display:flex;align-items:center;justify-content:center;font-size:13.5px;font-weight:600;color:var(--kai-muted);letter-spacing:.02em;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.news-card{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.news-cover{display:block;}
.news-cover img{aspect-ratio:16/9;object-fit:cover;width:100%;}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:1.1rem;line-height:1.4;}
.news-title a{color:var(--kai-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--kai-primary-dark);}
.news-summary{font-size:14px;color:var(--kai-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--kai-line);padding-top:14px;margin-top:auto;font-size:13px;color:var(--kai-muted);}
.news-meta .cat{display:inline-flex;align-items:center;gap:6px;color:var(--kai-primary);font-weight:600;}
.news-empty{background:#fff;border:1px dashed var(--kai-line);border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--kai-muted);}
.news-empty i{font-size:28px;color:var(--kai-primary);display:block;margin-bottom:12px;}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;}
.accordion-item{background:#fff;border:1px solid var(--kai-line);border-radius:var(--r-img);margin-bottom:12px;overflow:hidden;}
.accordion-button{width:100%;min-height:56px;padding:18px 22px;background:#fff;border:none;border-left:3px solid var(--kai-accent);font-size:16px;font-weight:600;color:var(--kai-ink);text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:none;}
.accordion-button:hover{background:var(--kai-bg);}
.accordion-button:not(.collapsed){background:var(--kai-bg);color:var(--kai-primary-dark);border-left-color:var(--kai-primary);}
.accordion-button::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--kai-primary);transition:transform .25s ease;}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-button:focus{box-shadow:0 0 0 2px rgba(31,122,107,.28);}
.accordion-body{padding:6px 22px 22px;font-size:15px;color:var(--kai-muted);line-height:1.78;}

/* CTA */
.cta-block{background:var(--kai-ink);color:var(--kai-bg);border-radius:20px;padding:56px;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;box-shadow:var(--sh-dark);position:relative;overflow:hidden;}
.cta-block::before{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border:1px solid rgba(224,138,76,.22);border-radius:50%;}
.cta-block h2{font-size:clamp(1.5rem,3vw,2.1rem);color:#fff;margin-bottom:14px;}
.cta-block p{color:rgba(247,244,238,.72);font-size:15px;}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(247,244,238,.16);border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;gap:14px;position:relative;z-index:2;}
.cta-form label{font-size:13px;color:rgba(247,244,238,.72);}
.form-control-kai{width:100%;height:48px;border-radius:var(--r-btn);border:1px solid var(--kai-line);background:#fff;padding:0 16px;font-size:15px;color:var(--kai-ink);}
.form-control-kai::placeholder{color:#9AA6A0;}
.form-control-kai:focus{outline:none;border-color:var(--kai-primary);box-shadow:0 0 0 4px rgba(31,122,107,.18);}
.form-tip{font-size:12.5px;color:rgba(247,244,238,.55);}
.form-msg{display:none;font-size:13.5px;color:#BFE3DA;}
.form-msg.show{display:block;}

/* 页脚 */
.site-footer{background:var(--kai-ink);color:var(--kai-bg);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--kai-accent),#b96a33);}
.footer-brand strong{font-size:17px;color:#fff;}
.footer-text{font-size:14px;color:rgba(247,244,238,.66);line-height:1.8;max-width:340px;}
.footer-contact{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(247,244,238,.66);}
.footer-contact i{color:var(--kai-accent);width:18px;}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:#fff;margin-bottom:18px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(247,244,238,.66);}
.footer-col a:hover{color:var(--kai-accent);}
.footer-sub{display:flex;gap:10px;margin-top:14px;}
.footer-sub input{flex:1;height:48px;border-radius:var(--r-btn);border:1px solid rgba(247,244,238,.2);background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14px;}
.footer-sub input::placeholder{color:rgba(247,244,238,.45);}
.footer-sub input:focus{outline:none;border-color:var(--kai-primary);box-shadow:0 0 0 4px rgba(31,122,107,.28);}
.footer-bottom{margin-top:52px;padding-top:24px;border-top:1px solid rgba(247,244,238,.14);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(247,244,238,.55);}
.footer-bottom a{color:rgba(247,244,238,.55);}
.footer-bottom a:hover{color:var(--kai-accent);}

/* 固定底条 */
.bottom-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--kai-ink);color:#fff;height:64px;display:flex;align-items:center;box-shadow:0 -8px 24px rgba(0,0,0,.18);transform:translateY(110%);transition:transform .3s ease;}
.bottom-bar.show{transform:translateY(0);}
.bottom-bar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.bottom-text{font-size:14.5px;color:rgba(255,255,255,.86);}
.bottom-text strong{color:#fff;}
.bottom-actions{display:flex;align-items:center;gap:12px;}
.bottom-close{width:32px;height:32px;border-radius:50%;border:none;background:rgba(255,255,255,.16);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease;}
.bottom-close:hover{background:rgba(255,255,255,.3);}
body.has-bottom-bar{padding-bottom:72px;}

/* 响应式 */
@media (max-width:1199.98px){
  .logo-wall{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .mobile-panel{background:#fff;border-top:1px solid var(--kai-line);padding:16px 0 24px;}
  .mobile-panel ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;}
  .mobile-panel a{display:flex;align-items:center;min-height:48px;padding:10px 0;font-size:15px;color:var(--kai-ink);border-bottom:1px solid var(--kai-line);}
  .mobile-panel a.active{color:var(--kai-primary);font-weight:600;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:2;}
  .hero-float{left:12px;}
  .bento{grid-template-columns:1fr;}
  .steps-wrap{grid-template-columns:1fr;gap:32px;}
  .steps-gallery{position:static;grid-template-columns:1fr 1fr;}
  .cat-grid{grid-template-columns:1fr 1fr;}
  .proof-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .cta-block{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .stat-item:nth-child(2){border-right:none;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){margin-top:20px;}
}
@media (max-width:767.98px){
  .section{padding:60px 0;}
  .logo-wall{grid-template-columns:1fr 1fr;}
  .proof-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .steps-gallery{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .hero{padding:52px 0 48px;}
  .hero-btns .btn-kai,.hero-btns .btn-ghost{width:100%;}
  .hero-float{position:static;margin-top:16px;max-width:none;}
  .stat-bar{grid-template-columns:1fr;padding:24px 12px;}
  .stat-item{border-right:none;padding:12px 0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){margin-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-block{padding:32px 22px;}
  .bottom-bar{height:56px;}
  .bottom-text{font-size:13px;}
  .bottom-text span{display:none;}
  .footer-sub{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --kai:#1F7A6B;
  --kai-dark:#0E4F46;
  --kai-soft:#E7F3EF;
  --ink:#17231F;
  --accent:#E08A4C;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --sand:#EFE7DA;
  --line:#D9D2C7;
  --muted:#5C6B64;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --shadow:0 8px 24px rgba(23,35,31,.06);
  --shadow-hover:0 14px 36px rgba(23,35,31,.12);
  --shadow-dark:0 12px 32px rgba(0,0,0,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--kai);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--kai-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.2;letter-spacing:-.02em}
h1{font-size:clamp(1.85rem,4vw,2.75rem);font-weight:800;line-height:1.15}
h2{font-size:clamp(1.5rem,3vw,2.25rem)}
h3{font-size:1.25rem;font-weight:600;line-height:1.3}
p{margin:0 0 1em}
button,input{font:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(31,122,107,.28);border-radius:8px}
.container-kai{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.small-muted{font-size:14px;color:var(--muted);line-height:1.6}
.section{padding:64px 0}
.section-tight{padding:48px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head p{color:var(--muted);font-size:15px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--kai);background:var(--kai-soft);border-radius:999px;padding:6px 14px;margin-bottom:14px}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:linear-gradient(180deg,#FFFFFF 0%,#F7F4EE 100%);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.01em}
.brand:hover{color:var(--kai-dark)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--kai);color:#fff;display:grid;place-items:center;font-size:16px;box-shadow:0 6px 16px rgba(31,122,107,.28)}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link-kai{position:relative;display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap}
.nav-link-kai:hover{background:var(--kai-soft);color:var(--kai-dark)}
.nav-link-kai.active{color:var(--kai);background:var(--kai-soft);font-weight:600}
.nav-link-kai.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;background:var(--kai)}
.nav-mega{position:relative}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:720px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:0 18px 48px rgba(23,35,31,.14);padding:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:1050;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted)}
.mega-col + .mega-col{border-left:1px solid var(--line);padding-left:22px}
.mega-col ul li a{display:block;padding:6px 0;font-size:14px;color:var(--ink)}
.mega-col ul li a:hover{color:var(--kai)}
.mega-time{font-size:12px;color:var(--muted)}
.mega-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:var(--bg);font-size:14px;color:var(--ink);margin-bottom:8px}
.mega-item i{color:var(--kai)}
.mega-item:hover{background:var(--kai-soft);color:var(--kai-dark)}
.mega-note{margin:8px 0 0;font-size:13px;color:var(--muted);line-height:1.6}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink)}

/* 面包屑 */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding-top:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--kai)}
.crumbs i{font-size:11px;color:#B9AFA0}

/* 小 Hero */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(247,244,238,.93) 0%,rgba(247,244,238,.97) 62%,rgba(247,244,238,1) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(31,122,107,.16);pointer-events:none;
}
.page-hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:36px 0 52px}
.page-hero h1{margin-bottom:14px}
.page-hero .lead{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:24px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.badge-kai{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13px;color:var(--muted)}
.badge-kai i{color:var(--kai)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-img);box-shadow:var(--shadow);border:1px solid rgba(217,210,199,.7)}
.hero-note{margin-top:14px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-note i{color:var(--accent)}

/* 按钮 */
.btn-kai,.btn-ghost,.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all .2s ease}
.btn-kai{background:var(--kai);color:#fff;box-shadow:0 8px 20px rgba(31,122,107,.22)}
.btn-kai:hover{background:var(--kai-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(31,122,107,.3)}
.btn-ghost{background:transparent;border-color:var(--kai);color:var(--kai)}
.btn-ghost:hover{background:var(--kai-soft);color:var(--kai-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(224,138,76,.26)}
.btn-accent:hover{background:#C9753B;color:#fff;transform:translateY(-1px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--kai);border-bottom:1px solid transparent}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover i{transform:translateX(3px)}

/* 目录 + 卡片 */
.guide-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:32px;align-items:start}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.toc h3{margin:0 0 12px;font-size:15px;font-weight:700;color:var(--ink);padding-left:4px}
.toc ul li a{display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--muted);border-left:3px solid transparent;margin-bottom:2px}
.toc ul li a:hover{background:var(--bg);color:var(--kai-dark);border-left-color:var(--accent)}
.toc ul li a.is-active{background:var(--kai-soft);color:var(--kai);border-left-color:var(--kai);font-weight:600}
.toc-foot{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);line-height:1.6}

.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.guide-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;scroll-margin-top:96px}
.guide-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.guide-card:hover .card-title{color:var(--kai-dark)}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.guide-card:hover .card-cover img{transform:scale(1.03)}
.card-body{display:flex;flex-direction:column;gap:12px;padding:20px;flex:1}
.card-title{margin:0;font-size:18px;font-weight:700;line-height:1.4;transition:color .2s ease}
.card-text{margin:0;font-size:14px;line-height:1.7;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--sand);color:#6B5B49;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600}
.tag-kai{background:var(--kai-soft);color:var(--kai-dark)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* 步骤时间线 */
.steps-band{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.step-node{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.step-node::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:var(--kai);opacity:.85}
.step-node:nth-child(2)::before{background:var(--accent)}
.step-num{width:44px;height:44px;border-radius:999px;background:var(--sand);color:var(--accent);font-weight:800;display:grid;place-items:center;font-size:17px;font-variant-numeric:tabular-nums;margin-bottom:14px}
.step-node h3{margin-bottom:8px}
.step-node p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}

/* 清单 */
.check-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:center}
.check-visual img{border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--shadow)}
.check-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink)}
.check-list li:last-child{border-bottom:none}
.check-list i{color:var(--kai);margin-top:5px;font-size:14px}
.check-list span{color:var(--muted);font-size:14px;display:block}

/* 数据条 */
.band-dark{background:var(--ink);color:#F7F4EE;box-shadow:var(--shadow-dark);border-radius:0}
.band-dark h2{color:#fff}
.band-dark .small-muted{color:rgba(247,244,238,.66)}
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:28px}
.stat-item{padding:22px 20px;border:1px solid rgba(247,244,238,.18);border-radius:14px;background:rgba(247,244,238,.04)}
.stat-num{font-size:clamp(1.6rem,3vw,2.15rem);font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:8px}
.stat-label{font-size:14px;color:rgba(247,244,238,.78);line-height:1.6}

/* CTA */
.cta-panel{background:var(--kai);color:#fff;border-radius:16px;padding:40px;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center;box-shadow:var(--shadow-dark);position:relative;overflow:hidden}
.cta-panel::after{content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border-radius:50%;border:1px solid rgba(255,255,255,.22)}
.cta-panel h2{color:#fff;margin-bottom:12px}
.cta-panel p{color:rgba(255,255,255,.86);margin:0;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2}
.cta-panel .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.cta-panel .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* 页脚 */
.site-footer{background:var(--ink);color:#F7F4EE;padding:56px 0 28px;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:17px;font-weight:800;color:#fff}
.footer-brand .brand-mark{background:var(--kai)}
.footer-text{font-size:14px;line-height:1.7;color:rgba(247,244,238,.66);max-width:320px;margin:0 0 14px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,244,238,.72);padding:5px 0}
.footer-contact i{color:var(--accent);width:16px}
.footer-col h4{margin:0 0 14px;font-size:15px;font-weight:700;color:#fff}
.footer-col ul li a{display:block;padding:6px 0;font-size:14px;color:rgba(247,244,238,.72)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-sub{display:flex;gap:8px;flex-wrap:wrap}
.footer-sub input{flex:1;min-width:150px;height:48px;border-radius:12px;border:1px solid rgba(247,244,238,.24);background:rgba(247,244,238,.06);color:#fff;padding:0 14px;font-size:14px}
.footer-sub input::placeholder{color:rgba(247,244,238,.5)}
.footer-sub input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,138,76,.22)}
.footer-sub .btn-kai{background:var(--kai);padding:0 20px;height:48px}
.footer-sub .btn-kai:hover{background:var(--kai-dark)}
.form-tip{font-size:13px;color:rgba(247,244,238,.6);margin:0}
.footer-bottom{margin-top:36px;padding-top:20px;border-top:1px solid rgba(247,244,238,.14);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(247,244,238,.6)}
.footer-bottom a{color:rgba(247,244,238,.78)}
.footer-bottom a:hover{color:var(--accent)}

/* 固定底条 */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--ink);color:#fff;box-shadow:0 -10px 30px rgba(0,0,0,.24);transform:translateY(110%);transition:transform .25s ease}
.sticky-bar.is-visible{transform:translateY(0)}
.sticky-inner{display:flex;align-items:center;gap:16px;min-height:64px;padding:8px 0}
.sticky-text{flex:1;font-size:14px;color:rgba(255,255,255,.86);margin:0}
.sticky-bar .btn-accent{padding:11px 20px}
.sticky-close{width:32px;height:32px;border-radius:999px;border:none;background:rgba(255,255,255,.14);color:#fff;display:grid;place-items:center;cursor:pointer}
.sticky-close:hover{background:rgba(255,255,255,.26)}
body.sticky-visible{padding-bottom:72px}

@media (max-width:1199px){
  .mega-panel{width:640px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);padding:14px 20px 20px;display:none;
    box-shadow:0 18px 40px rgba(23,35,31,.12);max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav-menu.is-open{display:flex}
  .nav-mega{position:static}
  .mega-panel{position:static;width:auto;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;border:none;padding:6px 0 0;grid-template-columns:1fr;gap:14px}
  .nav-mega.is-open .mega-panel{display:grid}
  .mega-col + .mega-col{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:14px}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;padding-bottom:40px}
  .guide-layout{grid-template-columns:1fr;gap:24px}
  .toc{position:static;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .toc h3{width:100%;margin-bottom:6px}
  .toc ul{display:flex;flex-wrap:wrap;gap:8px}
  .toc ul li a{border-left:none;border:1px solid var(--line);border-radius:999px;padding:7px 14px}
  .toc ul li a.is-active{border-color:var(--kai)}
  .toc-foot{width:100%;border-top:1px dashed var(--line);padding-top:12px}
  .check-grid{grid-template-columns:1fr;gap:28px}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .container-kai{padding:0 18px}
  .section{padding:48px 0}
  .guide-grid{grid-template-columns:1fr}
  .steps-band{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr 1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .btn-row .btn-kai,.btn-row .btn-ghost{width:100%}
  .sticky-inner{min-height:56px;gap:10px}
  .sticky-text{font-size:13px;line-height:1.5}
  .sticky-bar .btn-accent{padding:9px 14px;font-size:14px}
  body.sticky-visible{padding-bottom:64px}
}
@media (max-width:520px){
  .stats-row{grid-template-columns:1fr}
  .hero-badges{gap:8px}
}

/* roulang page: category2 */
:root{
  --kai:#1F7A6B;
  --kai-dark:#0E4F46;
  --kai-soft:#E7F3EF;
  --ink:#17231F;
  --orange:#E08A4C;
  --orange-dark:#C9753A;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --sand:#EFE7DA;
  --line:#D9D2C7;
  --muted:#5C6B64;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(23,35,31,.06);
  --shadow-hover:0 14px 36px rgba(23,35,31,.12);
  --shadow-dark:0 12px 32px rgba(0,0,0,.18);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:var(--kai);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--kai-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(31,122,107,.28);border-radius:10px;}

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

/* ---------- 通用组件 ---------- */
.btn-kai{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--kai);color:#fff;border:0;border-radius:var(--radius-sm);
  padding:14px 24px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:all .22s ease;
  box-shadow:0 6px 18px rgba(31,122,107,.18);
}
.btn-kai:hover{background:var(--kai-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(31,122,107,.26);}
.btn-kai:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid var(--kai);color:var(--kai);
  border-radius:var(--radius-sm);padding:12.5px 22px;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .22s ease;
}
.btn-ghost:hover{background:var(--kai-soft);color:var(--kai-dark);transform:translateY(-1px);}
.btn-orange{background:var(--orange);box-shadow:0 6px 18px rgba(224,138,76,.24);}
.btn-orange:hover{background:var(--orange-dark);box-shadow:0 12px 26px rgba(224,138,76,.3);}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid rgba(247,244,238,.42);color:#F7F4EE;
  border-radius:var(--radius-sm);padding:12.5px 22px;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .22s ease;
}
.btn-ghost-light:hover{background:rgba(247,244,238,.12);color:#fff;border-color:rgba(247,244,238,.7);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--kai);
  transition:all .2s ease;
}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover{color:var(--orange);text-decoration:underline;text-underline-offset:4px;}
.link-arrow:hover i{transform:translateX(3px);}

.badge-kai{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--card);border:1px solid var(--line);color:var(--muted);
  border-radius:999px;padding:7px 14px;font-size:13px;font-weight:500;line-height:1.2;
}
.badge-soft{background:var(--kai-soft);border-color:transparent;color:var(--kai-dark);}
.badge-orange{background:rgba(224,138,76,.14);border-color:transparent;color:var(--orange-dark);}

.tag{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:var(--sand);color:var(--muted);font-size:12.5px;font-weight:500;
}

.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--kai);
  text-transform:uppercase;margin-bottom:14px;
}
.section-label::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px;}
h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.2;margin-bottom:14px;}
h3{font-size:1.25rem;font-weight:600;line-height:1.3;margin-bottom:10px;}
.section-head p{color:var(--muted);font-size:16px;margin-bottom:0;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:linear-gradient(180deg,#FFFFFF 0%,#F7F4EE 100%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;position:relative;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--kai);color:#fff;
  display:grid;place-items:center;font-size:16px;flex:0 0 36px;
}
.brand-text{letter-spacing:-.02em;}

.nav-wrap{display:flex;align-items:center;}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0;padding:0;}
.nav-link-kai{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;
  color:var(--ink);position:relative;transition:all .2s ease;white-space:nowrap;
}
.nav-link-kai:hover{background:var(--kai-soft);color:var(--kai-dark);}
.nav-link-kai.active{color:var(--kai);background:var(--kai-soft);font-weight:600;}
.nav-link-kai.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;
  border-radius:3px;background:var(--kai);
}

.nav-mega{position:relative;}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:720px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 18px 48px rgba(23,35,31,.14);padding:26px 24px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.nav-mega:hover .mega-panel,.nav-mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col{padding:0 20px;border-right:1px solid var(--line);}
.mega-col:first-child{padding-left:0;}
.mega-col:last-child{border-right:0;padding-right:0;}
.mega-col h4{
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--muted);
  text-transform:uppercase;margin-bottom:14px;
}
.mega-col ul li{margin-bottom:10px;}
.mega-col ul li a{font-size:14.5px;color:var(--ink);display:block;padding:4px 0;}
.mega-col ul li a:hover{color:var(--kai);}
.mega-time{font-size:12px;color:var(--muted);margin-top:2px;}
.mega-item{
  display:flex;align-items:center;gap:10px;font-size:14.5px;font-weight:600;
  color:var(--ink);padding:10px 12px;border-radius:10px;background:var(--bg);
  margin-bottom:10px;
}
.mega-item:hover{background:var(--kai-soft);color:var(--kai-dark);}
.mega-item i{color:var(--orange);}
.mega-note{font-size:13px;color:var(--muted);line-height:1.6;margin:6px 0 0;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:18px;place-items:center;cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{background:var(--kai-soft);color:var(--kai-dark);}

/* ---------- 面包屑 ---------- */
.breadcrumb-kai{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb-kai a{color:var(--muted);}
.breadcrumb-kai a:hover{color:var(--kai);}
.breadcrumb-kai i{font-size:10px;color:var(--line);}
.breadcrumb-kai .current{color:var(--ink);font-weight:600;}

/* ---------- 宽幅横幅 Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.page-hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.92) 42%,rgba(247,244,238,.70) 100%);
}
.page-hero-inner{position:relative;padding:52px 0 64px;max-width:840px;}
.page-hero h1{
  font-size:clamp(2rem,4.5vw,3.25rem);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--kai);}
.page-hero .hero-sub{font-size:17px;color:var(--muted);max-width:660px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 三步时间线 ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.timeline::before{
  content:"";position:absolute;top:30px;left:10%;right:10%;height:2px;
  background:linear-gradient(90deg,var(--kai) 0%,rgba(224,138,76,.6) 50%,var(--line) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 22px 24px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.tl-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.tl-num{
  width:56px;height:56px;border-radius:50%;background:#fff;
  border:2px solid var(--kai);color:var(--orange);
  display:grid;place-items:center;font-size:20px;font-weight:800;
  font-variant-numeric:tabular-nums;margin-bottom:18px;
  box-shadow:0 0 0 6px rgba(31,122,107,.08);
}
.tl-item h3{font-size:1.15rem;}
.tl-item p{color:var(--muted);font-size:14.5px;margin-bottom:14px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 指标条 ---------- */
.metric-strip{
  background:var(--ink);border-radius:24px;padding:38px 34px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  box-shadow:var(--shadow-dark);position:relative;overflow:hidden;
}
.metric-strip::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(247,244,238,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(247,244,238,.05) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.metric-item{position:relative;text-align:left;border-left:2px solid rgba(224,138,76,.7);padding-left:16px;}
.metric-num{
  font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;color:#F7F4EE;
  font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:6px;
}
.metric-label{font-size:14px;color:rgba(247,244,238,.66);}

/* ---------- 双列图文交替 ---------- */
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  margin-bottom:72px;
}
.split-row:last-child{margin-bottom:0;}
.split-row.reverse .split-media{order:2;}
.split-media img{
  width:100%;height:auto;border-radius:var(--radius);
  box-shadow:var(--shadow);border:1px solid var(--line);
}
.split-body h3{font-size:clamp(1.25rem,2.4vw,1.6rem);margin-bottom:14px;}
.split-body p{color:var(--muted);font-size:15.5px;}
.feature-list{margin:18px 0 22px;}
.feature-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:var(--ink);padding:8px 0;
  border-bottom:1px dashed var(--line);
}
.feature-list li:last-child{border-bottom:0;}
.feature-list i{color:var(--kai);font-size:14px;margin-top:6px;}
.split-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:transparent;border:0;margin-bottom:12px;border-radius:12px;overflow:hidden;
}
.faq-acc .accordion-button{
  width:100%;background:#fff;border:1px solid var(--line);
  border-left:3px solid var(--orange);border-radius:12px !important;
  min-height:56px;padding:16px 22px;font-size:16.5px;font-weight:600;color:var(--ink);
  box-shadow:none;transition:background .2s ease,color .2s ease;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--bg);color:var(--kai-dark);box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 2px rgba(31,122,107,.28);}
.faq-acc .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--muted);width:auto;height:auto;
  transition:transform .25s ease,color .25s ease;transform:rotate(0deg);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--kai);}
.faq-acc .accordion-body{
  background:var(--bg);padding:18px 22px 22px 24px;font-size:15px;
  line-height:1.75;color:var(--muted);
}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;background:var(--ink);color:#F7F4EE;
  border-radius:24px;padding:56px 48px;box-shadow:var(--shadow-dark);
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
}
.cta-block::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(224,138,76,.28);
  box-shadow:0 0 0 32px rgba(224,138,76,.06);pointer-events:none;
}
.cta-block h2{color:#F7F4EE;font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:14px;}
.cta-block p{color:rgba(247,244,238,.72);margin-bottom:0;font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;}

/* ---------- 固定底条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:var(--ink);color:#fff;box-shadow:0 -6px 24px rgba(0,0,0,.16);
  transform:translateY(120%);transition:transform .3s ease;
}
.sticky-cta.show{transform:translateY(0);}
.sticky-inner{
  display:flex;align-items:center;gap:18px;min-height:64px;padding-top:8px;padding-bottom:8px;
}
.sticky-inner p{
  margin:0;font-size:14.5px;color:rgba(255,255,255,.86);flex:1;
}
.sticky-inner .btn-kai{padding:11px 20px;font-size:14.5px;}
.sticky-close{
  width:32px;height:32px;flex:0 0 32px;border-radius:50%;border:0;
  background:rgba(255,255,255,.14);color:#fff;font-size:14px;
  display:grid;place-items:center;cursor:pointer;transition:background .2s ease;
}
.sticky-close:hover{background:rgba(255,255,255,.28);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F7F4EE;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--kai);}
.footer-brand strong{font-size:17px;font-weight:700;color:#F7F4EE;}
.footer-text{font-size:14px;line-height:1.75;color:rgba(247,244,238,.66);max-width:340px;margin-bottom:18px;}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;font-size:14px;
  color:rgba(247,244,238,.66);margin-bottom:10px;
}
.footer-contact i{color:var(--orange);margin-top:5px;font-size:13px;}
.footer-col h4{
  font-size:14px;font-weight:700;color:#F7F4EE;letter-spacing:.04em;margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(247,244,238,.66);}
.footer-col ul li a:hover{color:var(--orange);}
.footer-sub{display:flex;gap:10px;}
.footer-sub input{
  flex:1;min-width:0;height:48px;border-radius:12px;padding:0 14px;font-size:14px;
  border:1px solid rgba(247,244,238,.24);background:rgba(247,244,238,.06);color:#F7F4EE;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub input::placeholder{color:rgba(247,244,238,.42);}
.footer-sub input:focus{
  outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(224,138,76,.2);
}
.footer-sub .btn-kai{padding:0 20px;height:48px;}
.form-tip{font-size:13px;color:rgba(247,244,238,.5);}
.form-tip.ok{color:#8ED6C3;}
.form-tip.err{color:#F0A97C;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(247,244,238,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(247,244,238,.56);
}
.footer-bottom a{color:rgba(247,244,238,.8);}
.footer-bottom a:hover{color:var(--orange);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .split-row{gap:40px;}
  .mega-panel{width:640px;}
}
@media (max-width:991.98px){
  .section{padding:60px 0;}
  .nav-toggle{display:grid;}
  .nav-wrap{
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(23,35,31,.12);
    padding:12px 24px 18px;display:none;flex-direction:column;align-items:stretch;
  }
  .nav-wrap.open{display:flex;}
  .nav-menu{flex-direction:column;align-items:stretch;gap:2px;width:100%;}
  .nav-link-kai{width:100%;min-height:44px;justify-content:space-between;}
  .nav-link-kai.active::after{left:14px;right:auto;width:26px;bottom:8px;}
  .mega-panel{
    position:static;width:100%;grid-template-columns:1fr;box-shadow:none;
    border:0;padding:6px 0 6px 12px;opacity:1;visibility:visible;transform:none;
    display:none;
  }
  .nav-mega.open .mega-panel{display:grid;}
  .mega-col{padding:10px 0;border-right:0;border-bottom:1px dashed var(--line);}
  .mega-col:last-child{border-bottom:0;}
  .page-hero-inner{padding:40px 0 48px;}
  .timeline{grid-template-columns:1fr;gap:18px;}
  .timeline::before{display:none;}
  .metric-strip{grid-template-columns:repeat(2,1fr);padding:30px 26px;gap:22px;}
  .split-row{grid-template-columns:1fr;gap:26px;margin-bottom:52px;}
  .split-row.reverse .split-media{order:0;}
  .cta-block{grid-template-columns:1fr;padding:40px 28px;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  body .container{padding-left:18px;padding-right:18px;}
  .page-hero h1{font-size:clamp(1.7rem,7vw,2.2rem);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-kai,.hero-actions .btn-ghost{width:100%;}
  .split-row{gap:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-text{max-width:none;}
  .sticky-inner p{font-size:13.5px;}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .metric-strip{grid-template-columns:1fr;padding:26px 22px;}
  .metric-item{border-left-width:2px;}
  .cta-block{padding:32px 22px;border-radius:18px;}
  .hero-badges{gap:8px;}
  .badge-kai{font-size:12px;padding:6px 11px;}
  .sticky-inner{gap:10px;flex-wrap:wrap;padding:10px 0;}
  .sticky-inner p{flex:1 1 100%;order:3;font-size:13px;}
  .sticky-inner .btn-kai{order:1;flex:1;}
  .sticky-close{order:2;}
  .footer-sub{flex-direction:column;}
  .footer-sub .btn-kai{width:100%;}
}

/* roulang page: article */
:root{
  --kai-green:#1F7A6B;
  --kai-green-dark:#0E4F46;
  --kai-green-soft:#E7F3EF;
  --kai-ink:#17231F;
  --kai-orange:#E08A4C;
  --kai-bg:#F7F4EE;
  --kai-card:#FFFFFF;
  --kai-sand:#EFE7DA;
  --kai-line:#D9D2C7;
  --kai-muted:#5C6B64;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 8px 24px rgba(23,35,31,.06);
  --shadow-2:0 14px 36px rgba(23,35,31,.12);
  --shadow-dark:0 12px 32px rgba(0,0,0,.18);
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--kai-ink);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--kai-green);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--kai-green-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;}
p{margin:0 0 1em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,122,107,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn-kai{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:var(--radius-btn);
  background:var(--kai-green);color:#fff;font-size:15px;font-weight:600;
  border:1.5px solid var(--kai-green);cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
  box-shadow:var(--shadow-1);
}
.btn-kai:hover{background:var(--kai-green-dark);border-color:var(--kai-green-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-kai:active{transform:translateY(0);}
.btn-kai.btn-orange{background:var(--kai-orange);border-color:var(--kai-orange);}
.btn-kai.btn-orange:hover{background:#C9713A;border-color:#C9713A;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:var(--radius-btn);
  background:transparent;border:1.5px solid var(--kai-green);color:var(--kai-green);
  font-size:15px;font-weight:600;transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--kai-green-soft);color:var(--kai-green-dark);transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--kai-green);
  border-bottom:1px solid transparent;transition:color .2s ease,gap .2s ease;
}
.link-arrow::after{content:"\f061";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;}
.link-arrow:hover{color:var(--kai-orange);gap:10px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:linear-gradient(180deg,#FFFFFF 0%,rgba(247,244,238,.94) 100%);
  border-bottom:1px solid var(--kai-line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--kai-ink);font-weight:800;}
.brand:hover{color:var(--kai-ink);}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:var(--kai-green);color:#fff;font-size:16px;box-shadow:var(--shadow-1);flex:none;
}
.brand-text{font-size:18px;letter-spacing:-0.02em;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--kai-line);
  background:#fff;color:var(--kai-ink);align-items:center;justify-content:center;font-size:18px;
}
.nav-wrap{display:flex;align-items:center;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu>li{position:relative;}
.nav-link-kai{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--kai-ink);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link-kai:hover{color:var(--kai-green);background:var(--kai-green-soft);}
.nav-link-kai.active{color:var(--kai-green);background:var(--kai-green-soft);position:relative;font-weight:600;}
.nav-link-kai.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--kai-green);
}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:720px;
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--radius-card);
  box-shadow:0 18px 48px rgba(23,35,31,.14);
  display:grid;grid-template-columns:1fr 1fr 1fr;
  padding:22px 0;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col{padding:0 22px;border-right:1px solid var(--kai-line);}
.mega-col:last-child{border-right:0;}
.mega-col h4{font-size:13px;font-weight:700;color:var(--kai-muted);letter-spacing:.08em;margin-bottom:12px;}
.mega-col ul li a{display:block;padding:7px 0;font-size:14px;color:var(--kai-ink);}
.mega-col ul li a:hover{color:var(--kai-green);}
.mega-time{font-size:12px;color:var(--kai-muted);}
.mega-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;
  background:var(--kai-bg);color:var(--kai-ink);font-size:14px;font-weight:600;margin-bottom:10px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.mega-item i{color:var(--kai-green);}
.mega-item:hover{background:var(--kai-green-soft);color:var(--kai-green-dark);transform:translateY(-1px);}
.mega-note{font-size:13px;color:var(--kai-muted);line-height:1.6;margin:0;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--kai-line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px 0;font-size:14px;color:var(--kai-muted);}
.crumb a{color:var(--kai-muted);}
.crumb a:hover{color:var(--kai-green);}
.crumb .sep{font-size:11px;color:#B6AEA1;}
.crumb .cur{color:var(--kai-ink);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.art-head{background:#fff;padding:44px 0 34px;border-bottom:1px solid var(--kai-line);}
.art-head-inner{max-width:820px;}
.art-tagline{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:var(--kai-green-soft);color:var(--kai-green-dark);font-size:13px;font-weight:600;
}
.tag.orange{background:#FBEBDD;color:#A85A24;}
.art-head h1{
  font-size:clamp(1.75rem,3.6vw,2.75rem);font-weight:800;line-height:1.18;letter-spacing:-0.02em;
  margin-bottom:20px;color:var(--kai-ink);
}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:14px;color:var(--kai-muted);
  padding-top:18px;border-top:1px dashed var(--kai-line);
}
.art-meta span{display:inline-flex;align-items:center;gap:7px;}
.art-meta i{color:var(--kai-green);}
.share-row{display:flex;align-items:center;gap:10px;margin-left:auto;}
.share-row a{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--kai-line);background:var(--kai-bg);
  display:grid;place-items:center;color:var(--kai-muted);font-size:13px;transition:all .2s ease;
}
.share-row a:hover{background:var(--kai-green);border-color:var(--kai-green);color:#fff;transform:translateY(-1px);}

/* ---------- layout ---------- */
.art-body{padding:48px 0 8px;}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.art-main{max-width:820px;}
.art-card{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:40px 44px;
}

/* ---------- prose ---------- */
.prose{font-size:17px;line-height:1.85;color:#20302A;}
.prose p{margin:0 0 1.2em;}
.prose h2{
  font-size:clamp(1.35rem,2.4vw,1.75rem);font-weight:700;line-height:1.3;
  margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--kai-green);color:var(--kai-ink);
}
.prose h3{font-size:1.22rem;font-weight:700;line-height:1.4;margin:1.7em 0 .6em;color:var(--kai-ink);}
.prose h4{font-size:1.05rem;font-weight:700;margin:1.4em 0 .5em;color:var(--kai-ink);}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:1.3em;}
.prose ul li{list-style:none;position:relative;padding-left:18px;margin-bottom:.55em;}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--kai-orange);transform:rotate(45deg);
}
.prose ol{counter-reset:item;}
.prose ol li{list-style:none;position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:item;}
.prose ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;width:21px;height:21px;border-radius:999px;
  background:var(--kai-green-soft);color:var(--kai-green-dark);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.prose blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--kai-sand);border-left:4px solid var(--kai-orange);
  border-radius:0 12px 12px 0;color:#3A4A42;font-size:16px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--radius-img);margin:1.6em 0 .6em;box-shadow:var(--shadow-1);}
.prose figcaption{font-size:13px;color:var(--kai-muted);text-align:center;margin-bottom:1.6em;}
.prose a{color:var(--kai-green);border-bottom:1px solid rgba(31,122,107,.35);}
.prose a:hover{color:var(--kai-orange);border-color:rgba(224,138,76,.5);}
.prose code{
  background:var(--kai-sand);color:#8A4B1E;padding:2px 7px;border-radius:6px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.prose pre{
  background:var(--kai-ink);color:#F2EFE8;padding:20px 22px;border-radius:12px;overflow:auto;
  font-size:14px;line-height:1.7;margin:1.6em 0;box-shadow:var(--shadow-dark);
}
.prose pre code{background:transparent;color:inherit;padding:0;font-size:14px;}
.prose table{width:100%;border-collapse:separate;border-spacing:0;margin:1.8em 0;font-size:15px;overflow:hidden;border-radius:12px;border:1px solid var(--kai-line);}
.prose thead th{background:var(--kai-ink);color:#fff;font-weight:600;text-align:left;padding:13px 16px;font-size:14px;}
.prose tbody td{padding:12px 16px;border-top:1px solid var(--kai-line);background:#fff;}
.prose tbody tr:nth-child(even) td{background:var(--kai-sand);}
.prose hr{border:0;height:1px;background:var(--kai-line);margin:2.4em 0;}

/* ---------- empty state ---------- */
.empty-block{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-block i{font-size:34px;color:var(--kai-orange);margin-bottom:16px;display:block;}
.empty-block h2{font-size:1.4rem;font-weight:700;margin-bottom:10px;}
.empty-block p{color:var(--kai-muted);max-width:48ch;margin:0 auto 22px;}

/* ---------- sidebar ---------- */
.art-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--kai-ink);display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--kai-green);font-size:13px;}
.side-list li+li{margin-top:10px;}
.side-list a{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#2C3A34;line-height:1.6;
  padding:8px 10px;border-radius:10px;transition:background .2s ease,color .2s ease;
}
.side-list a:hover{background:var(--kai-green-soft);color:var(--kai-green-dark);}
.side-list .dot{
  width:6px;height:6px;border-radius:999px;background:var(--kai-orange);flex:none;margin-top:8px;
}
.side-cta{background:var(--kai-ink);color:#F7F4EE;border:0;}
.side-cta h3{color:#fff;}
.side-cta p{font-size:14px;color:rgba(247,244,238,.72);line-height:1.7;margin-bottom:16px;}
.side-fact{display:flex;justify-content:space-between;font-size:14px;padding:9px 0;border-bottom:1px dashed rgba(247,244,238,.2);}
.side-fact:last-of-type{border-bottom:0;}
.side-fact span:first-child{color:rgba(247,244,238,.66);}
.side-fact span:last-child{font-weight:600;color:#fff;}

/* ---------- section title ---------- */
.section{padding:64px 0;}
.sec-head{max-width:640px;margin-bottom:34px;}
.sec-label{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--kai-orange);
  text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.05rem);font-weight:700;line-height:1.25;margin-bottom:12px;}
.sec-head p{color:var(--kai-muted);font-size:15px;margin:0;}

/* ---------- related cards ---------- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-card .thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--kai-sand);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-card .chip{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--kai-green-dark);
  background:var(--kai-green-soft);padding:4px 10px;border-radius:999px;margin-bottom:12px;
}
.post-card h3{
  font-size:18px;line-height:1.45;font-weight:700;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{color:var(--kai-ink);}
.post-card:hover h3 a{color:var(--kai-green-dark);}
.post-card p{
  font-size:14px;color:var(--kai-muted);line-height:1.65;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--kai-muted);padding-top:14px;border-top:1px dashed var(--kai-line);
}
.post-card .foot i{color:var(--kai-orange);margin-right:5px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--kai-line);border-radius:12px;overflow:hidden;
  border-left:3px solid var(--kai-orange);transition:background .2s ease,box-shadow .2s ease;
}
.faq-item.open{background:var(--kai-bg);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--kai-ink);cursor:pointer;
}
.faq-q i{color:var(--kai-green);transition:transform .25s ease;font-size:14px;flex:none;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a .inner{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--kai-muted);}

/* ---------- cta ---------- */
.cta-band{
  background:var(--kai-ink);color:#F7F4EE;border-radius:20px;padding:52px 48px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
  box-shadow:var(--shadow-dark);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(224,138,76,.35);
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,1.95rem);font-weight:700;line-height:1.3;margin-bottom:12px;color:#fff;position:relative;}
.cta-band p{font-size:15px;color:rgba(247,244,238,.74);margin:0;max-width:52ch;position:relative;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end;position:relative;}

/* ---------- footer ---------- */
.site-footer{background:var(--kai-ink);color:#F7F4EE;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--kai-green);}
.footer-brand strong{font-size:18px;font-weight:800;letter-spacing:-0.02em;}
.footer-text{font-size:14px;line-height:1.75;color:rgba(247,244,238,.66);max-width:34ch;margin:0 0 18px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,244,238,.72);margin-bottom:9px;}
.footer-contact i{color:var(--kai-orange);width:16px;text-align:center;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:rgba(247,244,238,.72);}
.footer-col ul li a:hover{color:var(--kai-orange);}
.footer-sub{display:flex;gap:8px;margin-top:6px;}
.footer-sub input{
  flex:1;min-width:0;height:48px;border-radius:12px;border:1px solid rgba(247,244,238,.24);
  background:rgba(247,244,238,.06);color:#fff;padding:0 14px;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(247,244,238,.45);}
.footer-sub input:focus{outline:none;border-color:var(--kai-green);box-shadow:0 0 0 3px rgba(31,122,107,.28);}
.footer-sub .btn-kai{padding:0 18px;height:48px;}
.form-tip{font-size:13px;color:rgba(247,244,238,.55);}
.footer-bottom{
  border-top:1px solid rgba(247,244,238,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(247,244,238,.6);
}
.footer-bottom a{color:rgba(247,244,238,.8);}
.footer-bottom a:hover{color:var(--kai-orange);}

/* ---------- fixed bar ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--kai-ink);
  color:#fff;box-shadow:0 -6px 24px rgba(0,0,0,.18);
  transform:translateY(110%);transition:transform .3s ease;
}
.fixed-bar.show{transform:translateY(0);}
.fixed-inner{display:flex;align-items:center;gap:18px;min-height:64px;padding:10px 24px;}
.fixed-inner .fixed-text{font-size:14px;color:rgba(247,244,238,.8);flex:1;min-width:0;}
.fixed-inner .fixed-text strong{color:#fff;display:block;font-size:15px;margin-bottom:2px;}
.fixed-close{
  width:32px;height:32px;border-radius:50%;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.12);color:#fff;display:grid;place-items:center;cursor:pointer;flex:none;
  transition:background .2s ease;
}
.fixed-close:hover{background:rgba(255,255,255,.24);}
.fixed-short{display:none;}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .art-layout{grid-template-columns:minmax(0,1fr) 272px;gap:32px;}
  .header-inner{height:68px;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .nav-wrap{
    position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--kai-line);
    box-shadow:var(--shadow-2);display:none;padding:12px 24px 20px;
  }
  .nav-wrap.open{display:block;animation:fadeDown .2s ease;}
  @keyframes fadeDown{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
  .nav-menu{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link-kai{min-height:44px;padding:12px 12px;font-size:15px;}
  .nav-link-kai.active::after{display:none;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;
    grid-template-columns:1fr;padding:8px 0 0;
  }
  .mega-col{border-right:0;padding:8px 0;}
  .art-layout{grid-template-columns:1fr;}
  .art-side{position:static;}
  .card-grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:767px){
  .art-card{padding:26px 20px;}
  .prose{font-size:16.5px;}
  .art-body{padding:32px 0 4px;}
  .section{padding:48px 0;}
  .art-head{padding:30px 0 24px;}
  .share-row{margin-left:0;}
  .fixed-inner{min-height:56px;padding:8px 16px;gap:12px;}
  .fixed-inner .fixed-text{display:none;}
  .fixed-short{display:block;font-size:13px;color:rgba(247,244,238,.85);flex:1;min-width:0;}
}
@media (max-width:576px){
  .container{padding:0 16px;}
  .card-grid-3{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .btn-kai,.btn-ghost{width:100%;justify-content:center;}
  .cta-actions{flex-direction:column;}
  .art-meta{gap:12px;}
  .crumb .cur{white-space:normal;}
}

/* roulang page: category3 */
:root{
  --kai-primary:#1F7A6B;
  --kai-primary-dark:#0E4F46;
  --kai-primary-soft:#E7F3EF;
  --kai-ink:#17231F;
  --kai-ink-2:#5C6B64;
  --kai-accent:#E08A4C;
  --kai-bg:#F7F4EE;
  --kai-sand:#EFE7DA;
  --kai-line:#D9D2C7;
  --kai-white:#FFFFFF;
  --kai-radius:16px;
  --kai-radius-sm:12px;
  --kai-shadow:0 8px 24px rgba(23,35,31,.06);
  --kai-shadow-hover:0 14px 36px rgba(23,35,31,.12);
  --kai-dark-shadow:0 12px 32px rgba(0,0,0,.18);
  --kai-font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--kai-font);
  font-size:16px;
  line-height:1.75;
  color:var(--kai-ink);
  background:var(--kai-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--kai-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--kai-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--kai-ink);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,122,107,.45);outline-offset:2px;}

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

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--kai-bg) 100%);
  border-bottom:1px solid var(--kai-line);
}
.header-inner{
  min-height:72px;display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--kai-primary);color:#fff;font-size:16px;
  box-shadow:0 6px 16px rgba(31,122,107,.28);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--kai-ink);}
.nav-wrap{margin-left:auto;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-link-kai{
  position:relative;display:block;padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--kai-ink);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-link-kai:hover{color:var(--kai-primary);background:rgba(31,122,107,.07);}
.nav-link-kai.active{
  color:var(--kai-primary);background:var(--kai-primary-soft);font-weight:600;
}
.nav-link-kai.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--kai-primary);
}
.nav-mega{position:relative;}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:720px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius);
  box-shadow:0 18px 48px rgba(23,35,31,.14);
  padding:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  z-index:60;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--kai-ink-2);font-weight:700;margin-bottom:12px;}
.mega-col ul li{margin-bottom:10px;}
.mega-col ul li a{font-size:14.5px;color:var(--kai-ink);display:block;line-height:1.5;}
.mega-col ul li a:hover{color:var(--kai-primary-dark);}
.mega-time{font-size:12px;color:var(--kai-ink-2);margin-top:2px;}
.mega-item{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--kai-radius-sm);
  background:var(--kai-bg);border:1px solid var(--kai-line);font-size:14.5px;color:var(--kai-ink);margin-bottom:10px;
}
.mega-item i{color:var(--kai-primary);}
.mega-item:hover{border-color:var(--kai-primary);color:var(--kai-primary-dark);}
.mega-note{font-size:13px;color:var(--kai-ink-2);line-height:1.7;margin-top:6px;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--kai-line);
  background:#fff;color:var(--kai-ink);font-size:17px;
}
.nav-toggle:hover{border-color:var(--kai-primary);color:var(--kai-primary);}

/* ===== Buttons ===== */
.btn-kai{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--kai-radius-sm);border:1.5px solid transparent;
  font-size:15px;font-weight:600;background:var(--kai-primary);color:#fff;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease;
  box-shadow:0 8px 20px rgba(31,122,107,.22);
}
.btn-kai:hover{background:var(--kai-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(31,122,107,.3);}
.btn-kai:focus-visible{outline:none;box-shadow:0 0 0 2px #fff,0 0 0 4px rgba(31,122,107,.4);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--kai-radius-sm);border:1.5px solid var(--kai-primary);
  background:transparent;color:var(--kai-primary);font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--kai-primary-soft);color:var(--kai-primary-dark);transform:translateY(-1px);}
.btn-accent{background:var(--kai-accent);box-shadow:0 8px 20px rgba(224,138,76,.28);}
.btn-accent:hover{background:#C9763B;box-shadow:0 12px 26px rgba(224,138,76,.34);}
.btn-link-kai{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--kai-primary);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link-kai i{transition:transform .2s ease;}
.btn-link-kai:hover{color:var(--kai-accent);}
.btn-link-kai:hover i{transform:translateX(4px);}

/* ===== Breadcrumb ===== */
.breadcrumb-bar{padding:18px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--kai-ink-2);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--kai-line);}
.crumb a{color:var(--kai-ink-2);}
.crumb a:hover{color:var(--kai-primary);}
.crumb .current{color:var(--kai-ink);font-weight:600;}

/* ===== Page Hero ===== */
.page-hero{padding:28px 0 8px;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--kai-primary-soft);color:var(--kai-primary-dark);
  font-size:13px;font-weight:700;letter-spacing:.02em;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(2rem,4.5vw,3.25rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;
}
.page-hero h1 .hl{color:var(--kai-primary);}
.hero-sub{margin-top:16px;font-size:17px;color:var(--kai-ink-2);max-width:560px;}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;border-radius:var(--kai-radius);box-shadow:var(--kai-shadow);border:1px solid var(--kai-line);
  aspect-ratio:4/3;object-fit:cover;
}
.hero-tag{
  position:absolute;left:20px;bottom:20px;background:#fff;border:1px solid var(--kai-line);
  border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;color:var(--kai-ink);
  box-shadow:var(--kai-shadow);
}
.hero-tag i{color:var(--kai-accent);margin-right:6px;}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-alt{background:var(--kai-white);border-top:1px solid var(--kai-line);border-bottom:1px solid var(--kai-line);}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--kai-accent);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.2;}
.section-head p{margin-top:14px;color:var(--kai-ink-2);font-size:16px;}

/* ===== Metric cards ===== */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  background:#fff;border:1px solid var(--kai-line);border-radius:var(--kai-radius);
  padding:26px 22px;box-shadow:var(--kai-shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--kai-shadow-hover);border-color:var(--kai-primary);}
.metric-num{
  font-size:34px;font-weight:800;color:var(--kai-primary);line-height:1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.metric-num span{font-size:16px;font-weight:700;margin-left:4px;color:var(--kai-ink-2);}
.metric-label{margin-top:12px;font-size:16px;font-weight:700;}
.metric-desc{margin-top:8px;font-size:14px;line-height:1.7;color:var(--kai-ink-2);}

/* ===== Compare table ===== */
.table-wrap{
  border:1px solid var(--kai-line);border-radius:var(--kai-radius);overflow:hidden;background:#fff;
  box-shadow:var(--kai-shadow);
}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;}
.compare-table thead th{
  background:var(--kai-ink);color:#fff;font-size:15px;font-weight:700;text-align:left;
  padding:18px 22px;letter-spacing:.01em;
}
.compare-table thead th:first-child{border-top-left-radius:0;}
.compare-table tbody td{
  padding:18px 22px;font-size:15px;line-height:1.7;border-bottom:1px solid var(--kai-line);vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:nth-child(even){background:var(--kai-sand);}
.compare-table tbody tr:hover{background:var(--kai-primary-soft);}
.cell-key{font-weight:700;color:var(--kai-ink);}
.cell-warn{color:#A9603A;}
.cell-warn i{color:var(--kai-accent);margin-right:6px;}
.cell-good i{color:var(--kai-primary);margin-right:6px;}

/* ===== Checklist split ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.split-media img{
  width:100%;border-radius:var(--kai-radius);box-shadow:var(--kai-shadow);border:1px solid var(--kai-line);
  aspect-ratio:3/2;object-fit:cover;
}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--kai-line);
}
.check-list li:last-child{border-bottom:0;}
.check-ico{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:var(--kai-primary-soft);
  color:var(--kai-primary);display:flex;align-items:center;justify-content:center;font-size:15px;
}
.check-list h3{font-size:17px;font-weight:700;margin-bottom:4px;}
.check-list p{font-size:14.5px;color:var(--kai-ink-2);line-height:1.7;}

/* ===== Badge strip ===== */
.badge-strip{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.badge-kai{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--kai-line);font-size:14px;font-weight:600;color:var(--kai-ink);
}
.badge-kai i{color:var(--kai-primary);}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;}
.accordion-item{
  border:1px solid var(--kai-line);border-radius:var(--kai-radius-sm);overflow:hidden;
  background:#fff;margin-bottom:12px;box-shadow:var(--kai-shadow);
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--kai-ink);background:#fff;
  padding:18px 20px;box-shadow:none;border-left:3px solid var(--kai-accent);
}
.accordion-button:not(.collapsed){background:var(--kai-bg);color:var(--kai-primary-dark);box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(31,122,107,.18);z-index:3;}
.accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;width:26px;height:26px;border-radius:50%;background:var(--kai-primary-soft);color:var(--kai-primary);
  display:flex;align-items:center;justify-content:center;transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:var(--kai-accent);color:#fff;}
.accordion-body{padding:4px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--kai-ink-2);background:var(--kai-bg);}
.accordion-body strong{color:var(--kai-ink);}

/* ===== CTA ===== */
.cta-block{
  position:relative;border-radius:20px;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(23,35,31,.94) 0%,rgba(23,35,31,.82) 55%,rgba(31,122,107,.78) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:56px 48px;color:#fff;box-shadow:var(--kai-dark-shadow);
}
.cta-block h2{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;}
.cta-block p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(247,244,238,.82);max-width:680px;}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ===== Footer ===== */
.site-footer{background:var(--kai-ink);color:var(--kai-bg);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(247,244,238,.12);box-shadow:none;color:var(--kai-bg);}
.footer-brand strong{font-size:18px;font-weight:800;color:var(--kai-bg);}
.footer-text{font-size:14.5px;line-height:1.8;color:rgba(247,244,238,.66);max-width:340px;}
.footer-contact{margin-top:18px;}
.footer-contact li{font-size:14px;color:rgba(247,244,238,.66);margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--kai-accent);margin-top:5px;font-size:13px;}
.footer-col h4{color:var(--kai-bg);font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14.5px;color:rgba(247,244,238,.72);}
.footer-col ul li a:hover{color:var(--kai-accent);}
.footer-sub{display:flex;gap:10px;margin-top:6px;}
.footer-sub input{
  flex:1;min-width:0;height:48px;border-radius:var(--kai-radius-sm);
  border:1px solid rgba(247,244,238,.24);background:rgba(247,244,238,.08);
  color:#fff;padding:0 14px;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(247,244,238,.5);}
.footer-sub input:focus{outline:none;border-color:var(--kai-primary);box-shadow:0 0 0 3px rgba(31,122,107,.28);}
.footer-sub .btn-kai{padding:0 20px;height:48px;box-shadow:none;}
.form-tip{font-size:13px;color:rgba(247,244,238,.6);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(247,244,238,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(247,244,238,.6);
}
.footer-bottom a{color:rgba(247,244,238,.8);}
.footer-bottom a:hover{color:var(--kai-accent);}

/* ===== Bottom bar ===== */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:120;background:var(--kai-ink);color:#fff;
  height:64px;display:flex;align-items:center;
  transform:translateY(110%);transition:transform .3s ease;box-shadow:0 -10px 28px rgba(23,35,31,.24);
}
.bottom-bar.show{transform:translateY(0);}
.bottom-bar-inner{display:flex;align-items:center;gap:16px;width:100%;}
.bottom-bar-text{font-size:15px;color:rgba(247,244,238,.86);margin-right:auto;}
.bottom-bar .btn-kai{padding:10px 20px;box-shadow:none;font-size:14.5px;}
.bottom-bar-close{
  width:32px;height:32px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.bottom-bar-close:hover{background:rgba(255,255,255,.26);}
body.bar-open{padding-bottom:64px;}

/* ===== Responsive ===== */
@media (min-width:992px){
  #mainNav.collapse{display:block !important;height:auto !important;visibility:visible !important;}
}
@media (max-width:1199.98px){
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .mega-panel{width:640px;}
}
@media (max-width:991.98px){
  .nav-wrap{margin-left:0;width:100%;}
  .nav-menu{flex-direction:column;align-items:stretch;gap:2px;padding:12px 0 18px;}
  .nav-link-kai{padding:13px 14px;font-size:15.5px;}
  .nav-link-kai.active::after{left:14px;right:auto;width:32px;}
  .nav-mega{width:100%;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;grid-template-columns:1fr;padding:16px;margin-top:6px;
  }
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{max-width:100%;}
  .split{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:48px 0;}
}
@media (max-width:767.98px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:clamp(1.75rem,7vw,2.4rem);}
  .hero-actions .btn-kai,.hero-actions .btn-ghost{width:100%;}
  .metric-grid{grid-template-columns:1fr;}
  .table-wrap{border:0;box-shadow:none;background:transparent;overflow:visible;}
  .compare-table thead{display:none;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tbody tr{
    background:#fff !important;border:1px solid var(--kai-line);border-radius:var(--kai-radius-sm);
    margin-bottom:14px;padding:6px 4px;box-shadow:var(--kai-shadow);
  }
  .compare-table tbody td{border-bottom:0;padding:10px 18px;font-size:14.5px;}
  .compare-table tbody td::before{
    content:attr(data-label);display:block;font-size:12px;font-weight:700;letter-spacing:.06em;
    color:var(--kai-ink-2);margin-bottom:4px;
  }
  .cta-block{padding:40px 24px;border-radius:16px;}
  .cta-actions .btn-kai,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-sub{flex-wrap:wrap;}
  .footer-sub .btn-kai{width:100%;}
  .bottom-bar{height:56px;}
  .bottom-bar-text{font-size:13.5px;line-height:1.4;}
  .bottom-bar .btn-kai{padding:8px 16px;font-size:13.5px;}
  body.bar-open{padding-bottom:56px;}
}
@media (max-width:575.98px){
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .section{padding:40px 0;}
  .metric-card{padding:22px 18px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1F7A6B;
  --c-primary-dark:#0E4F46;
  --c-primary-soft:#E7F3EF;
  --c-ink:#17231F;
  --c-accent:#E08A4C;
  --c-accent-soft:#FBEDE1;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-sand:#EFE7DA;
  --c-line:#D9D2C7;
  --c-muted:#5C6B64;
  --r-card:16px;
  --r-img:12px;
  --r-btn:12px;
  --sh-1:0 8px 24px rgba(23,35,31,.06);
  --sh-2:0 14px 36px rgba(23,35,31,.12);
  --sh-dark:0 12px 32px rgba(0,0,0,.18);
  --container:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4,p,ul,ol,blockquote,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,122,107,.28);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:linear-gradient(180deg,#FFFFFF 0%,#F7F4EE 100%);
  border-bottom:1px solid var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;
  box-shadow:0 6px 16px rgba(31,122,107,.28);
}
.brand-text{font-weight:800;font-size:19px;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0 0 0 auto;padding:0;}
.nav-link-kai{
  display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--c-ink);position:relative;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link-kai:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link-kai.active{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link-kai.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:3px;border-radius:2px;background:var(--c-primary);
}
.nav-mega{position:relative;}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:720px;
  background:#fff;border:1px solid var(--c-line);border-radius:16px;
  box-shadow:0 18px 48px rgba(23,35,31,.14);
  padding:22px;display:grid;grid-template-columns:1fr 1fr 1fr;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col{padding:0 18px;}
.mega-col:first-child{padding-left:0;}
.mega-col:last-child{padding-right:0;}
.mega-col + .mega-col{border-left:1px solid var(--c-line);}
.mega-col h4{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:.06em;margin-bottom:12px;}
.mega-col ul li{margin-bottom:10px;}
.mega-col ul li a{font-size:14px;color:var(--c-ink);display:block;line-height:1.5;}
.mega-col ul li a:hover{color:var(--c-primary);}
.mega-time{font-size:12px;color:var(--c-muted);}
.mega-item{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;
  background:var(--c-bg);color:var(--c-ink);font-size:14px;margin-bottom:8px;
}
.mega-item i{color:var(--c-primary);}
.mega-item:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);}
.mega-note{font-size:13px;color:var(--c-muted);line-height:1.6;margin-top:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:17px;align-items:center;justify-content:center;
}
.header-cta{flex-shrink:0;}

/* ---------- buttons ---------- */
.btn-kai{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--r-btn);border:1.5px solid var(--c-primary);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease,color .2s ease;
  box-shadow:0 8px 20px rgba(31,122,107,.22);
}
.btn-kai:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(14,79,70,.28);}
.btn-kai:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:var(--r-btn);border:1.5px solid var(--c-primary);
  background:transparent;color:var(--c-primary);font-size:15px;font-weight:600;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:none;background:var(--c-accent);
  color:#fff;font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease;
}
.btn-accent:hover{background:#C9762F;color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-more i{transition:transform .2s ease;}
.link-more:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);padding:24px 0 0;flex-wrap:wrap;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb i{font-size:10px;color:var(--c-line);}
.crumb .current{color:var(--c-ink);font-weight:600;}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;margin:20px 0 0;border-radius:24px;overflow:hidden;
  padding:56px 48px;border:1px solid var(--c-line);
  background-image:linear-gradient(100deg,rgba(247,244,238,.96) 0%,rgba(247,244,238,.90) 46%,rgba(247,244,238,.62) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;right:40px;top:32px;width:140px;height:140px;border-radius:50%;
  border:1px dashed rgba(31,122,107,.28);pointer-events:none;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.badge-kai{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-muted);
}
.badge-kai i{color:var(--c-primary);font-size:12px;}
.cat-hero h1{font-size:clamp(2rem,4.5vw,3.25rem);font-weight:800;line-height:1.15;letter-spacing:-.02em;max-width:760px;}
.cat-hero .hero-sub{margin-top:16px;font-size:17px;color:var(--c-muted);max-width:640px;line-height:1.7;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2;}

/* ---------- tag strip ---------- */
.tag-strip{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px 20px;margin-top:24px;box-shadow:var(--sh-1);
}
.tag-strip-label{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:.04em;margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-bg);font-size:14px;color:var(--c-ink);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.chip-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip-active:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}

/* ---------- section ---------- */
.section{padding:64px 0 0;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-accent);letter-spacing:.08em;margin-bottom:10px;
}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.2;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px;}

/* ---------- waterfall ---------- */
.waterfall{column-count:3;column-gap:24px;}
.wf-card{
  break-inside:avoid;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;margin-bottom:24px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.wf-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C9C0B2;}
.wf-card.is-tall{padding:26px;}
.wf-cover{border-radius:var(--r-img);overflow:hidden;margin-bottom:16px;background:var(--c-sand);}
.wf-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}
.wf-tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:12px;font-weight:600;margin-bottom:12px;
}
.wf-tag.tag-warm{background:var(--c-accent-soft);color:#A65E23;}
.wf-tag.tag-sand{background:var(--c-sand);color:var(--c-muted);}
.wf-card h3{font-size:18px;font-weight:600;line-height:1.35;margin-bottom:10px;}
.wf-card p{font-size:14px;line-height:1.7;color:var(--c-muted);margin-bottom:14px;}
.wf-card:hover h3{color:var(--c-primary-dark);}
.wf-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px dashed var(--c-line);padding-top:12px;}
.wf-meta{font-size:12px;color:var(--c-muted);}

/* ---------- quotes ---------- */
.quote-section{padding:72px 0 0;}
.quote-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px;align-items:stretch;}
.quote-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-accent);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
}
.quote-card.quote-lead{
  background:var(--c-ink);border-color:var(--c-ink);border-left-color:var(--c-accent);color:#F7F4EE;
}
.quote-card.quote-lead .quote-text{font-size:20px;font-weight:600;line-height:1.5;}
.quote-card.quote-lead .quote-from{color:rgba(247,244,238,.66);}
.quote-text{font-size:16px;line-height:1.7;}
.quote-from{font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px;}
.quote-from i{color:var(--c-accent);font-size:12px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-btn);
  margin-bottom:12px;overflow:hidden;border-left:3px solid var(--c-accent);
}
.accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;background:var(--c-surface);border:none;
  font-size:16px;font-weight:600;color:var(--c-ink);text-align:left;
}
.accordion-button .fa-chevron-down{font-size:12px;color:var(--c-primary);transition:transform .2s ease;}
.accordion-button[aria-expanded="true"]{background:var(--c-bg);}
.accordion-button[aria-expanded="true"] .fa-chevron-down{transform:rotate(180deg);}
.accordion-button:hover{color:var(--c-primary-dark);}
.accordion-body{padding:4px 22px 20px;font-size:15px;line-height:1.75;color:var(--c-muted);background:var(--c-bg);}
.accordion-body p{margin-bottom:10px;}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- cta ---------- */
.cta-band{
  margin-top:72px;background:var(--c-ink);border-radius:24px;padding:56px 48px;
  color:#F7F4EE;position:relative;overflow:hidden;box-shadow:var(--sh-dark);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(224,138,76,.32);pointer-events:none;
}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;line-height:1.25;max-width:620px;}
.cta-band p{margin-top:14px;color:rgba(247,244,238,.72);max-width:560px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2;}
.cta-band .btn-ghost{border-color:rgba(247,244,238,.5);color:#F7F4EE;}
.cta-band .btn-ghost:hover{background:rgba(247,244,238,.12);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#F7F4EE;margin-top:80px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-primary);box-shadow:none;}
.footer-brand strong{font-size:18px;font-weight:800;color:#F7F4EE;}
.footer-text{font-size:14px;line-height:1.75;color:rgba(247,244,238,.66);max-width:320px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(247,244,238,.66);}
.footer-contact i{color:var(--c-accent);width:16px;text-align:center;}
.footer-col h4{font-size:15px;font-weight:700;color:#F7F4EE;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a{font-size:14px;color:rgba(247,244,238,.66);}
.footer-col ul li a:hover{color:var(--c-accent);}
.footer-sub{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;}
.footer-sub input{
  flex:1 1 150px;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid rgba(247,244,238,.24);background:rgba(247,244,238,.06);
  color:#F7F4EE;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(247,244,238,.5);}
.footer-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,122,107,.28);}
.form-tip{font-size:13px;color:rgba(247,244,238,.6);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(247,244,238,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
  color:rgba(247,244,238,.6);
}
.footer-bottom a{color:rgba(247,244,238,.8);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--c-ink);
  color:#fff;box-shadow:0 -8px 28px rgba(0,0,0,.2);
  transform:translateY(120%);transition:transform .25s ease;
}
.sticky-bar.show{transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;gap:18px;min-height:64px;padding-top:10px;padding-bottom:10px;}
.sticky-text{font-size:15px;color:rgba(255,255,255,.86);flex:1;}
.sticky-text .short{display:none;}
.sticky-actions{display:flex;align-items:center;gap:12px;}
.sticky-close{
  width:32px;height:32px;border-radius:50%;border:none;background:rgba(255,255,255,.16);
  color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;transition:background .2s ease;
}
.sticky-close:hover{background:rgba(255,255,255,.28);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .waterfall{column-count:3;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .quote-card.quote-lead{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .nav-menu{
    position:absolute;left:16px;right:16px;top:72px;
    background:#fff;border:1px solid var(--c-line);border-radius:16px;
    box-shadow:var(--sh-2);flex-direction:column;align-items:stretch;
    padding:12px;gap:2px;display:none;max-height:78vh;overflow-y:auto;
  }
  .nav-menu.open{display:flex;}
  .mega-panel{
    position:static;width:100%;grid-template-columns:1fr;
    opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;
    padding:8px 4px 4px;
  }
  .mega-col{padding:0 !important;}
  .mega-col + .mega-col{border-left:none;border-top:1px solid var(--c-line);padding-top:14px !important;margin-top:14px;}
  .cat-hero{padding:40px 28px;}
  .cat-hero::after{display:none;}
  .waterfall{column-count:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767.98px){
  .section{padding-top:48px;}
  .cat-hero{padding:32px 22px;border-radius:18px;}
  .quote-grid{grid-template-columns:1fr;}
  .tag-strip{padding:14px 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .sticky-inner{min-height:56px;gap:12px;}
  .sticky-text{font-size:13px;}
  .sticky-text .long{display:none;}
  .sticky-text .short{display:inline;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:17px;}
  .nav-menu{top:64px;}
  .waterfall{column-count:1;}
  .hero-actions .btn-kai,.hero-actions .btn-ghost{width:100%;}
  .cta-actions .btn-kai,.cta-actions .btn-ghost{width:100%;}
  .cta-band{border-radius:18px;}
  .brand-text{white-space:normal;line-height:1.2;}
}