/* roulang page: index */
:root{
  --brand:#12332B;
  --brand-deep:#0D2620;
  --brand-soft:rgba(18,51,43,.08);
  --lime:#C7F04C;
  --lime-deep:#A9D62F;
  --orange:#FF5B2E;
  --orange-deep:#E44A20;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-alt:#EDEAE2;
  --text:#222824;
  --muted:#667070;
  --weak:#9AA3A0;
  --border:#E2DDD2;
  --divider:#EFEBE2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,51,43,.06);
  --shadow-2:0 12px 28px rgba(18,51,43,.10);
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Helvetica Neue",Arial,sans-serif;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-justify:auto;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease}
a:hover{color:var(--orange)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.grid-container.full{max-width:100%}
.hidden{display:none !important}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(246,244,239,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-stuck{
  background:#FFFFFF;
  box-shadow:0 1px 4px rgba(18,51,43,.10);
  border-bottom-color:var(--divider);
}
.nav-inner{
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav-left{display:flex;align-items:center;gap:32px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{
  font-size:17px;font-weight:800;color:var(--brand);letter-spacing:.01em;white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--orange)}
.nav-channels{display:flex;align-items:center;gap:26px}
.nav-channels a{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;white-space:nowrap;
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-channels a:hover{color:var(--brand)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.is-active{color:var(--brand);font-weight:700}
.nav-channels a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.icon-btn svg{width:18px;height:18px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1.5px solid transparent;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:#0B241E;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover,.btn-accent:focus{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:var(--brand)}
.btn-lime:hover,.btn-lime:focus{background:var(--lime-deep);color:var(--brand);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.link-underline{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--brand);
  border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.link-underline:hover{color:var(--orange);border-bottom-color:var(--orange)}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#fff;color:var(--brand);
  align-items:center;justify-content:center;
}
.nav-toggle svg{width:20px;height:20px}
.mobile-drawer{
  display:none;background:#fff;border-top:1px solid var(--divider);
  padding:14px 20px 20px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:13px 0;font-size:16px;font-weight:600;color:var(--brand);
  border-bottom:1px solid var(--divider);
}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:16px}
.mobile-drawer .drawer-actions .btn{flex:1}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section--alt{background:var(--surface-alt)}
.section--paper{background:var(--surface)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:32px;
}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:800;color:var(--brand);letter-spacing:.01em;
}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.section-head .more{font-size:14px;font-weight:700;color:var(--brand);border-bottom:2px solid var(--lime);padding-bottom:2px;white-space:nowrap}
.section-head .more:hover{color:var(--orange);border-bottom-color:var(--orange)}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:rgba(18,51,43,.08);color:var(--brand);
}
.badge--lime{background:var(--lime);color:var(--brand)}
.badge--orange{background:rgba(255,91,46,.12);color:var(--orange-deep)}

/* ============ Hero 分屏 ============ */
.hero{
  position:relative;
  padding:calc(var(--nav-h) + 48px) 0 64px;
  background:
    radial-gradient(900px 420px at 88% 8%,rgba(199,240,76,.30),transparent 62%),
    linear-gradient(180deg,#F6F4EF 0%,#F1EEE6 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-visual{grid-column:span 6}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;
  border-radius:999px;background:#fff;border:1px solid var(--border);
  font-size:13px;font-weight:700;color:var(--brand);box-shadow:var(--shadow-1);
}
.hero .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--orange);display:inline-block}
.hero h1{
  margin-top:20px;
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;font-weight:800;letter-spacing:.01em;color:var(--brand);
}
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,var(--lime) 62%);
  padding:0 2px;
}
.hero .lede{
  margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;align-items:center}
.hero-stats{
  display:flex;gap:36px;margin-top:38px;padding-top:24px;border-top:1px solid var(--divider);
  flex-wrap:wrap;
}
.hero-stats .stat strong{
  display:block;font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--brand);line-height:1.1;
}
.hero-stats .stat span{display:block;margin-top:6px;font-size:13px;color:var(--weak)}

.hero-media{position:relative;border-radius:20px;overflow:hidden;background:var(--surface-alt);box-shadow:var(--shadow-2)}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  position:absolute;left:18px;top:18px;display:flex;align-items:center;gap:8px;
  height:34px;padding:0 14px;border-radius:999px;background:var(--lime);color:var(--brand);
  font-size:13px;font-weight:800;box-shadow:0 6px 18px rgba(18,51,43,.18);
}
.hero-card{
  position:absolute;right:18px;bottom:18px;background:#fff;border-radius:var(--radius-lg);
  padding:14px 18px;box-shadow:0 10px 24px rgba(18,51,43,.14);min-width:172px;
}
.hero-card b{display:block;font-size:13px;color:var(--weak);font-weight:600}
.hero-card span{display:block;font-family:var(--font-num);font-size:20px;font-weight:800;color:var(--brand);margin-top:2px}

/* ============ 商品网格 ============ */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D0C2}
.product-thumb{position:relative;background:var(--surface-alt);overflow:hidden}
.product-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.product-card:hover .product-thumb img{transform:scale(1.03)}
.product-thumb .badge{position:absolute;left:14px;top:14px}
.product-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.product-body h3{
  font-size:17px;line-height:1.5;font-weight:700;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px;
}
.product-specs{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.product-specs span{
  font-size:12px;color:var(--muted);background:var(--bg);
  border:1px solid var(--divider);border-radius:999px;padding:3px 9px;
}
.product-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.price{font-family:var(--font-num);font-size:20px;font-weight:800;color:var(--orange)}
.price small{font-size:12px;font-weight:600;color:var(--weak);margin-left:2px}

/* ============ 保障条 ============ */
.guarantee{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guarantee-item{
  background:#fff;border-radius:var(--radius-lg);padding:22px 20px;
  border:1px solid var(--border);display:flex;gap:14px;align-items:flex-start;
}
.guarantee-item .gi-icon{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  border:1.5px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.guarantee-item .gi-icon svg{width:20px;height:20px}
.guarantee-item h3{font-size:16px;font-weight:800;color:var(--brand);line-height:1.4}
.guarantee-item p{margin-top:5px;font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 评价轮播 ============ */
.review-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.review-head h2{font-size:30px;font-weight:800;color:var(--brand);line-height:1.35}
.review-head p{margin-top:10px;font-size:15px;color:var(--muted)}
.review-arrows{display:flex;gap:10px}
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 40px) / 3);
  scroll-snap-align:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:22px;display:flex;flex-direction:column;gap:12px;
}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  background:var(--surface-alt);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;
}
.review-top strong{display:block;font-size:15px;color:var(--text)}
.review-top em{display:block;font-style:normal;font-size:12px;color:var(--weak);margin-top:2px}
.stars{display:flex;gap:2px;color:var(--lime-deep)}
.stars svg{width:15px;height:15px}
.review-card p{font-size:14px;line-height:1.85;color:var(--muted)}
.review-card time{font-size:12px;color:var(--weak);margin-top:auto}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:700;color:var(--brand);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .fq-icon{
  width:24px;height:24px;flex:0 0 auto;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;line-height:1;transition:transform .18s ease;
}
.faq-item[open] summary .fq-icon{transform:rotate(180deg);background:var(--lime);color:var(--brand)}
.faq-item .faq-body{
  padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--muted);
  border-top:1px solid var(--divider);padding-top:16px;
}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D0C2}
.news-link{display:flex;flex-direction:column;height:100%;color:inherit}
.news-link:hover{color:inherit}
.news-thumb{background:var(--surface-alt);overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{
  margin-top:10px;font-size:17px;line-height:1.5;font-weight:700;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--weak);border-top:1px solid var(--divider);
}
.empty-state{
  grid-column:1 / -1;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);
  padding:52px 24px;text-align:center;
}
.empty-state strong{display:block;font-size:17px;color:var(--brand);font-weight:700}
.empty-state span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.empty-state .btn{margin-top:20px}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand);border-radius:var(--radius-lg);
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(199,240,76,.14);
}
.cta-band .cta-copy{position:relative;z-index:1;max-width:640px}
.cta-band h2{font-size:28px;line-height:1.4;font-weight:800;color:#fff}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:#BFD2C9}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand);color:#CFDDD6;margin-top:72px}
.footer-main{padding:60px 0 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#9FB6AC;max-width:300px}
.footer-col h3{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:#9FB6AC}
.footer-col ul a:hover{color:var(--lime)}
.footer-contact li{font-size:14px;color:#9FB6AC;margin-bottom:10px;line-height:1.7}
.footer-contact strong{color:#fff;font-weight:700}
.subscribe-form{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.subscribe-form label{font-size:13px;color:#9FB6AC}
.subscribe-form input{
  height:44px;border-radius:var(--radius-md);border:1px solid rgba(255,255,255,.22);
  background:#fff;color:var(--text);padding:0 14px;font-size:14px;font-family:inherit;
}
.subscribe-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(199,240,76,.45)}
.subscribe-form .hint{font-size:12px;color:#8CA49A}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#8CA49A}
.footer-bottom p span{color:#CFDDD6}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{font-size:13px;color:#8CA49A}
.footer-links a:hover{color:var(--lime)}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .grid-container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .nav-channels{display:none}
  .nav-toggle{display:flex}
  .nav-right .btn-ghost{display:none}
  .nav-left{gap:16px}
  .hero{padding:calc(var(--nav-h) + 32px) 0 48px}
  .hero-copy,.hero-visual{grid-column:span 12}
  .hero-visual{order:-1}
  .hero-media img{aspect-ratio:16/10}
  .product-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .guarantee{grid-template-columns:repeat(2,1fr)}
  .review-card{flex:0 0 calc((100% - 20px) / 2)}
  .footer-main{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:38px 30px}
}
@media screen and (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px}
  .section{padding:40px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .section-head h2,.review-head h2,.cta-band h2{font-size:23px}
  .nav-right .btn-accent{display:none}
  .brand-text{font-size:15px}
  .hero-stats{gap:22px}
  .hero-stats .stat strong{font-size:22px}
  .product-grid,.news-grid,.guarantee{grid-template-columns:1fr}
  .review-card{flex:0 0 84%}
  .review-arrows{display:none}
  .review-head{flex-direction:column;align-items:flex-start}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item summary{font-size:15.5px;padding:16px 18px}
  .faq-item .faq-body{padding:14px 18px 18px}
}

/* roulang page: article */
:root{
  --brand:#12332B;
  --brand-dark:#0D2620;
  --brand-soft:rgba(18,51,43,.08);
  --lime:#C7F04C;
  --orange:#FF5B2E;
  --orange-dark:#E94A1F;
  --bg:#F6F4EF;
  --surface:#FFFFFF;
  --surface-alt:#EDEAE2;
  --text:#222824;
  --muted:#667070;
  --weak:#9AA3A0;
  --border:#E2DDD2;
  --divider:#EFEBE2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(18,51,43,.06);
  --shadow-2:0 12px 28px rgba(18,51,43,.10);
  --container:1200px;
  --pad-y:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  text-justify:auto;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35;letter-spacing:.01em;color:var(--text)}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.grid-container{max-width:var(--container) !important;padding-left:24px;padding-right:24px}
.row{max-width:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{background:#fff;box-shadow:0 1px 4px rgba(18,51,43,.10);border-bottom-color:var(--divider)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.header-left{display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--brand);white-space:nowrap}
.brand:hover{color:var(--brand)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.06em;flex:0 0 auto;
}
.brand-text em{font-style:normal;font-weight:600;font-size:13px;color:var(--muted);margin-left:3px}
.nav-channels{display:flex;align-items:center;gap:22px;font-size:15px;color:var(--muted)}
.nav-channels a{position:relative;padding:6px 0;white-space:nowrap}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-channels a:hover{color:var(--brand)}
.nav-channels a:hover::after,.nav-channels a.is-active::after{transform:scaleX(1)}
.nav-channels a.is-active{color:var(--brand);font-weight:700}
.header-right{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:#fff;
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.icon-btn:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--radius-sm);border:1px solid var(--border);background:#fff;color:var(--brand);cursor:pointer;align-items:center;justify-content:center}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--divider);padding:8px 0 16px}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:12px 24px;font-size:16px;font-weight:600;color:var(--brand)}
.mobile-drawer a:hover{background:var(--surface-alt)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);
  border-bottom:2px solid var(--lime);padding-bottom:2px;line-height:1.5;
}
.btn-link:hover{color:var(--orange)}

/* ============ 文章顶部 ============ */
.article-hero{
  position:relative;
  background-image:linear-gradient(118deg,rgba(18,51,43,.95),rgba(18,51,43,.76)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:44px 0 108px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{color:rgba(255,255,255,.38)}
.breadcrumb .current{color:rgba(255,255,255,.62);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;color:#fff;max-width:940px;font-weight:800}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);
  font-size:14px;color:rgba(255,255,255,.78);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4)}
.meta-pill{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--lime);color:var(--brand);font-size:13px;font-weight:800;
}

/* ============ 正文布局 ============ */
.article-main{margin-top:-68px;padding-bottom:8px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:40px;box-shadow:var(--shadow-1);
}
.article-prose{max-width:760px;font-size:16px;line-height:1.9}
.article-prose > *:first-child{margin-top:0}
.article-prose h2{font-size:clamp(21px,2.4vw,28px);margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--lime);line-height:1.4}
.article-prose h3{font-size:19px;margin:28px 0 12px;line-height:1.45}
.article-prose h4{font-size:17px;margin:22px 0 10px}
.article-prose p{margin:0 0 1.2em}
.article-prose ul,.article-prose ol{padding-left:22px;margin:0 0 1.2em}
.article-prose ul{list-style:square}
.article-prose li{margin-bottom:.5em}
.article-prose ul li::marker{color:var(--brand)}
.article-prose blockquote{
  margin:24px 0;padding:16px 22px;background:var(--surface-alt);
  border-left:4px solid var(--brand);border-radius:0 var(--radius-md) var(--radius-md) 0;color:var(--muted);
}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose img{width:100%;border-radius:var(--radius-md);margin:24px 0;aspect-ratio:16/9;object-fit:cover;background:var(--surface-alt)}
.article-prose figure{margin:24px 0}
.article-prose figcaption{font-size:13px;color:var(--weak);margin-top:8px;text-align:center}
.article-prose table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;
}
.article-prose th,.article-prose td{border:1px solid var(--border);padding:10px 14px;text-align:left;line-height:1.7}
.article-prose thead th{background:var(--surface-alt);font-weight:700;color:var(--brand)}
.article-prose tbody tr:nth-child(even){background:#FAF8F4}
.article-prose a{color:var(--brand);border-bottom:1px solid var(--lime)}
.article-prose a:hover{color:var(--orange)}
.article-prose code{background:var(--surface-alt);padding:2px 6px;border-radius:6px;font-size:14px}
.article-prose hr{border:0;border-top:1px solid var(--divider);margin:32px 0}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--divider)}
.article-tags .label{font-size:13px;color:var(--weak);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.tag:hover{background:var(--brand);color:#fff}
.article-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px}

.empty-state{max-width:760px;padding:20px 0}
.empty-state h2{font-size:24px;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--lime)}
.spec-list{list-style:none;padding:0;margin:0}
.spec-list li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed var(--divider);font-size:14px;color:var(--muted)}
.spec-list li:last-child{border-bottom:0;padding-bottom:0}
.spec-list strong{color:var(--text);font-weight:700}
.pill-list{display:flex;flex-wrap:wrap;gap:8px}
.side-note{background:var(--brand);color:#fff;border:0}
.side-note h3{color:#fff}
.side-note h3::before{background:var(--lime)}
.side-note p{font-size:14px;color:rgba(255,255,255,.78);margin-bottom:16px}
.side-steps{list-style:none;padding:0;margin:0;font-size:14px;color:var(--muted)}
.side-steps li{position:relative;padding-left:20px;margin-bottom:10px}
.side-steps li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--lime)}
.side-steps li:last-child{margin-bottom:0}

/* ============ 相关推荐 ============ */
.related{margin-top:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:8px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.12em;
  color:var(--brand);background:var(--lime);border-radius:999px;padding:4px 12px;margin-bottom:10px;
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-cover{position:relative;aspect-ratio:4/3;background:var(--surface-alt);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.badge{
  position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;height:26px;
  padding:0 10px;border-radius:999px;background:var(--lime);color:var(--brand);font-size:12px;font-weight:800;
}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--divider)}
.card-foot span{font-size:13px;color:var(--weak)}
.card-foot a{font-size:14px;font-weight:700;color:var(--brand)}
.card-foot a:hover{color:var(--orange)}

/* ============ FAQ ============ */
.faq{margin-top:56px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 34px}
.faq h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.faq .faq-sub{color:var(--muted);font-size:14px;margin-bottom:18px}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 0;font-size:17px;font-weight:700;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;line-height:1;color:var(--brand);transition:transform .18s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 0 18px;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;margin:56px 0 72px;padding:40px;border-radius:var(--radius-lg);
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;
  background:rgba(199,240,76,.14);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.76);margin:10px 0 0;max-width:620px;font-size:15px;position:relative;z-index:1}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand);color:rgba(255,255,255,.76);padding:56px 0 0;margin-top:0}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.4fr;gap:32px;padding-bottom:40px}
.footer-brand .brand-text{display:block;font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
.footer-brand .brand-text em{font-style:normal;color:var(--lime);font-size:14px;margin-left:4px;font-weight:700}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;max-width:320px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--lime)}
.footer-contact li{line-height:1.7;color:rgba(255,255,255,.68)}
.footer-contact strong{color:#fff;font-weight:700}
.subscribe-form{display:flex;flex-direction:column;gap:10px}
.subscribe-form label{font-size:13px;color:rgba(255,255,255,.68)}
.subscribe-form input{
  height:44px;border-radius:var(--radius-md);border:1px solid rgba(255,255,255,.28);
  background:#fff;color:var(--text);padding:0 14px;font-size:14px;width:100%;
}
.subscribe-form input::placeholder{color:var(--weak)}
.subscribe-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(199,240,76,.5)}
.subscribe-form .btn{width:100%}
.subscribe-form .hint{font-size:12px;color:rgba(255,255,255,.5)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;
}
.footer-bottom p{margin:0;color:rgba(255,255,255,.6)}
.footer-bottom span{color:#fff;font-weight:700}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:rgba(255,255,255,.68);font-size:13px}
.footer-links a:hover{color:var(--lime)}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-channels{gap:16px;font-size:14px}
  .header-left{gap:20px}
}
@media (max-width:1024px){
  :root{--pad-y:56px}
  .nav-channels{display:none}
  .menu-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static;flex-direction:row;flex-wrap:wrap}
  .side-col .side-card{flex:1 1 260px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-hero{padding:36px 0 96px}
}
@media (max-width:900px){
  .header-right .btn-ghost{display:none}
}
@media (max-width:768px){
  .article-card{padding:24px 20px}
  .faq{padding:22px 20px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .article-main{margin-top:-56px}
  .section-head{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px}
  .article-main{padding-bottom:0}
  .article-hero{padding:28px 0 84px}
  .article-meta{font-size:13px;gap:10px}
  .breadcrumb .current{max-width:200px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .side-col{flex-direction:column}
  .side-col .side-card{flex:1 1 auto;width:100%}
  .footer-main{grid-template-columns:minmax(0,1fr);gap:26px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-prose table{font-size:13.5px}
  .article-prose th,.article-prose td{padding:8px 10px}
}
@media (max-width:560px){
  .header-right .btn-primary{display:none}
  .brand-text em{display:none}
  .brand{font-size:17px}
}

/* roulang page: category2 */
:root{
  --ink:#12332B;
  --ink-dark:#0D2620;
  --lime:#C7F04C;
  --orange:#FF5B2E;
  --orange-dark:#E64E24;
  --bg:#F6F4EF;
  --white:#FFFFFF;
  --panel:#EDEAE2;
  --text:#222824;
  --text-2:#667070;
  --text-3:#9AA3A0;
  --line:#E2DDD2;
  --line-2:#EFEBE2;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(18,51,43,.06);
  --shadow-2:0 12px 28px rgba(18,51,43,.10);
  --sec-pad:72px;
  --font-cn:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  text-justify:auto;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--orange);}
h1,h2,h3,h4,h5,h6{margin:0 0 12px;color:var(--ink);font-weight:800;line-height:1.25;letter-spacing:.01em;}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;}
h3{font-size:18px;line-height:1.45;}
h4{font-size:16px;line-height:1.5;}
p{margin:0 0 1.1em;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
::selection{background:var(--lime);color:var(--ink);}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line-2);
  transition:box-shadow .18s ease,background-color .18s ease;
}
.site-header.is-stuck{box-shadow:0 1px 4px rgba(18,51,43,.14);background:#fff;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.header-left{display:flex;align-items:center;gap:32px;min-width:0;}
.header-right{display:flex;align-items:center;gap:10px;}
.brand{display:inline-flex;align-items:baseline;font-size:20px;font-weight:800;color:var(--ink);white-space:nowrap;}
.brand em{font-style:normal;color:var(--orange);margin-left:2px;}
.brand:hover{color:var(--ink);}
.nav-channels{display:flex;align-items:center;gap:26px;}
.nav-channels a{
  position:relative;padding:6px 0;font-size:15px;font-weight:600;color:var(--text-2);
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-channels a:hover{color:var(--ink);}
.nav-channels a:hover::after{transform:scaleX(1);}
.nav-channels a.is-active{color:var(--ink);}
.nav-channels a.is-active::after{transform:scaleX(1);}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-sm);border:1.5px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--ink);background:rgba(18,51,43,.06);transform:translateY(-2px);}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.menu-toggle{display:none;}
.search-bar{display:none;border-top:1px solid var(--line-2);background:#fff;}
.search-bar.is-open{display:block;}
.search-inner{display:flex;gap:12px;align-items:center;padding:14px 24px;}
.search-inner input{
  flex:1;height:44px;border-radius:var(--r-md);border:1.5px solid var(--line);
  padding:0 14px;font-size:15px;color:var(--text);background:#fff;
}
.search-inner input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,43,.08);}

/* 移动抽屉 */
.mobile-drawer{display:none;border-top:1px solid var(--line-2);background:#fff;padding:16px 24px 22px;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;padding:12px 0;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line-2);
}
.mobile-drawer a.is-active{color:var(--orange);}
.mobile-drawer .drawer-actions{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:700;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--orange);color:#fff;}
.btn-accent:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:rgba(18,51,43,.08);color:var(--ink);}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-on-dark:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--ink);
  border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.btn-link:hover{color:var(--orange);border-color:var(--orange);}
.btn:active{transform:translateY(0);}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;}
.section-tight{padding:48px 0;}
.section-panel{background:var(--panel);}
.section-white{background:#fff;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{margin-bottom:12px;}
.sec-head p{font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  padding:6px 14px;border-radius:999px;background:rgba(18,51,43,.08);
  color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.eyebrow-lime{background:var(--lime);color:var(--ink);}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:16px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb span.sep{color:var(--line);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:56px 0 64px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F4EF 100%);
  border-bottom:1px solid var(--line-2);
}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{color:var(--ink);}
.hero h1 mark{background:linear-gradient(180deg,transparent 62%,var(--lime) 62%);color:inherit;padding:0 2px;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px;margin-bottom:26px;}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:32px;}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line);}
.hero-stat strong{display:block;font-size:28px;font-weight:800;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums;}
.hero-stat span{font-size:13px;color:var(--text-3);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-lg);
  background:var(--panel);box-shadow:var(--shadow-2);
}
.float-tag{
  position:absolute;left:-12px;top:28px;
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lime);color:var(--ink);font-size:13px;font-weight:800;
  padding:8px 16px;border-radius:999px;box-shadow:var(--shadow-1);
}
.float-card{
  position:absolute;right:-14px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--shadow-2);min-width:190px;
}
.float-card strong{display:block;font-size:13px;color:var(--text-3);font-weight:600;margin-bottom:4px;}
.float-card span{font-size:16px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;}

/* ============ 色块分区 ============ */
.zone-list{display:grid;gap:20px;}
.zone-row{
  display:grid;grid-template-columns:230px 1fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .18s ease,transform .18s ease;
}
.zone-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.zone-tag{
  background:var(--ink);color:#fff;padding:30px 24px;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
}
.zone-tag em{font-style:normal;font-size:12px;letter-spacing:.08em;color:var(--lime);font-weight:700;}
.zone-tag strong{font-size:19px;font-weight:800;line-height:1.35;color:#fff;}
.zone-row.is-alt .zone-tag{background:var(--lime);color:var(--ink);}
.zone-row.is-alt .zone-tag em{color:var(--ink);opacity:.7;}
.zone-row.is-alt .zone-tag strong{color:var(--ink);}
.zone-body{padding:30px 30px;}
.zone-body h3{margin-bottom:10px;}
.zone-body p{font-size:15px;margin-bottom:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;
  background:rgba(18,51,43,.07);color:var(--ink);font-size:12px;font-weight:700;
}
.tag-lime{background:var(--lime);color:var(--ink);}

/* ============ 规格行卡 ============ */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 26px 18px;box-shadow:var(--shadow-1);}
.spec-card h3{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:18px;}
.spec-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--orange);flex:none;}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line-2);font-size:15px;}
.spec-row:last-child{border-bottom:0;}
.spec-name{color:var(--text-2);flex:none;}
.spec-val{font-weight:700;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--shadow-1);}
.step-num{
  width:38px;height:38px;border-radius:50%;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;margin:0;}
.step-line{height:2px;background:linear-gradient(90deg,var(--lime),rgba(199,240,76,0));border-radius:2px;margin-top:18px;}

/* ============ 清单 ============ */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.check-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);
}
.check-ico{
  flex:none;width:44px;height:44px;border-radius:var(--r-md);
  background:rgba(18,51,43,.07);display:flex;align-items:center;justify-content:center;
}
.check-ico svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.check-card h3{font-size:17px;margin-bottom:8px;}
.check-card p{font-size:14px;line-height:1.75;margin:0;}

/* ============ 图文带 ============ */
.media-band{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;}
.media-band img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);background:var(--panel);}
.media-band .media-actions{margin-top:20px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,51,43,.08);color:var(--ink);font-size:17px;font-weight:800;
  transition:transform .18s ease,background-color .18s ease;
}
.faq-item[open] summary::after{content:"–";background:var(--lime);transform:rotate(180deg);}
.faq-item .faq-body{padding:0 22px 20px;border-top:1px solid var(--line-2);}
.faq-item .faq-body p{font-size:15px;line-height:1.85;padding-top:16px;}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);border-radius:var(--r-lg);padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:#B9C6C1;font-size:15px;max-width:560px;margin:0;}
.cta-band .cta-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C6D1CD;padding:64px 0 0;margin-top:0;}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:40px;}
.footer-brand .brand-text{display:inline-block;font-size:20px;font-weight:800;color:#fff;margin-bottom:12px;}
.footer-brand .brand-text em{font-style:normal;color:var(--lime);margin-left:2px;}
.footer-brand p{color:#A9B6B1;font-size:14px;line-height:1.8;margin:0;max-width:300px;}
.footer-col h3{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:#C6D1CD;}
.footer-col a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;color:#A9B6B1;}
.footer-contact strong{color:#fff;font-weight:600;}
.subscribe-form{display:flex;flex-direction:column;gap:10px;}
.subscribe-form label{font-size:13px;color:#A9B6B1;}
.subscribe-form input{
  height:44px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.28);
  background:#fff;color:var(--text);padding:0 14px;font-size:14px;
}
.subscribe-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(199,240,76,.25);}
.subscribe-form .hint{font-size:12px;color:#8E9C97;}
.subscribe-form .btn{width:100%;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:#8E9C97;}
.footer-bottom p span{color:#fff;}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-links a{font-size:13px;color:#A9B6B1;}
.footer-links a:hover{color:var(--lime);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  :root{--sec-pad:56px;}
  .header-inner{height:64px;}
  .nav-channels{display:none;}
  .header-right .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero{padding:40px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/10;}
  .float-tag{left:12px;top:-14px;}
  .float-card{right:12px;bottom:-18px;}
  .spec-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .media-band{grid-template-columns:1fr;gap:28px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px 28px;}
}
@media screen and (max-width:640px){
  :root{--sec-pad:40px;}
  body{font-size:15.5px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .header-inner{gap:12px;}
  .brand{font-size:18px;}
  .hero-stats{gap:24px;}
  .hero-stat strong{font-size:23px;}
  .zone-row{grid-template-columns:1fr;}
  .zone-tag{padding:20px 22px;flex-direction:row;align-items:center;justify-content:flex-start;gap:10px;}
  .zone-body{padding:22px;}
  .steps{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .search-inner{flex-wrap:wrap;}
  .search-inner input{min-width:100%;}
}

/* roulang page: category3 */
:root{
  --ink:#12332B;
  --ink-deep:#0D251F;
  --lime:#C7F04C;
  --orange:#FF5B2E;
  --paper:#F6F4EF;
  --sand:#EDEAE2;
  --text:#222824;
  --muted:#667070;
  --faint:#9AA3A0;
  --line:#E2DDD2;
  --line-soft:#EFEBE2;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(18,51,43,.06);
  --shadow-2:0 12px 28px rgba(18,51,43,.10);
  --tr:180ms ease;
  --pad-sec:72px;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  text-justify:auto;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--tr),background-color var(--tr),border-color var(--tr),transform var(--tr);}
a:hover{color:var(--ink);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);line-height:1.3;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:var(--maxw);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.grid-container.full{padding-left:0;padding-right:0;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow var(--tr),background-color var(--tr);
}
.site-header.is-stuck{
  background:#fff;
  box-shadow:0 1px 4px rgba(18,51,43,.12);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding-top:10px;
  padding-bottom:10px;
}
.header-left{display:flex;align-items:center;gap:28px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:8px;flex:none;}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--orange);font-weight:800;}
.brand::before{
  content:"";
  width:10px;height:22px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--lime) 0 55%,var(--ink) 55% 100%);
  display:block;
}
.nav-channels{display:flex;align-items:center;gap:6px;}
.nav-channels a{
  position:relative;
  display:inline-block;
  padding:6px 10px;
  font-size:15px;
  color:var(--muted);
  font-weight:500;
  white-space:nowrap;
  border-radius:8px;
}
.nav-channels a:hover{color:var(--ink);background:rgba(18,51,43,.05);}
.nav-channels a.is-active{color:var(--ink);font-weight:700;}
.nav-channels a.is-active::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:-2px;
  height:2px;
  background:var(--lime);
  border-radius:2px;
}
.header-right{display:flex;align-items:center;gap:10px;flex:none;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--r-sm);
  color:var(--ink);
  transition:border-color var(--tr),background-color var(--tr),transform var(--tr);
}
.icon-btn:hover{border-color:var(--ink);background:var(--sand);transform:translateY(-1px);}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  transition:background-color var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--orange);color:#fff;}
.btn-accent:hover{background:#E84B1F;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:rgba(18,51,43,.08);color:var(--ink);transform:translateY(-2px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:700;color:var(--ink);
  padding:4px 0;
  border-bottom:2px solid var(--lime);
  border-radius:0;
}
.btn-link:hover{color:var(--orange);border-bottom-color:var(--orange);}

.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);align-items:center;justify-content:center;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line-soft);
  background:#fff;
  padding:14px 24px 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  font-size:16px;
  border-bottom:1px solid var(--line-soft);
  color:var(--muted);
  font-weight:500;
}
.mobile-drawer a.is-active{color:var(--ink);font-weight:700;}
.mobile-drawer .drawer-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap;}

/* ============ HERO ============ */
.hero{
  position:relative;
  background:#fff;
  padding:44px 0 64px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  right:-140px;top:-160px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(199,240,76,.42) 0%,rgba(199,240,76,0) 68%);
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);}
.crumb span.sep{color:var(--line);}

.hero-grid{display:flex;align-items:center;gap:56px;}
.hero-copy{flex:1 1 50%;min-width:0;}
.hero-visual{flex:1 1 50%;min-width:0;position:relative;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;
  border-radius:999px;
  font-size:12.5px;font-weight:700;
  background:rgba(18,51,43,.08);
  color:var(--ink);
  white-space:nowrap;
}
.tag-lime{background:var(--lime);color:var(--ink);}
.tag-orange{background:rgba(255,91,46,.12);color:var(--orange);}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--muted);}

.hero h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.25;
  letter-spacing:-.015em;
  margin-bottom:16px;
}
.hero h1 mark{background:none;color:var(--ink);box-shadow:inset 0 -12px 0 var(--lime);padding:0 2px;}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  line-height:1.75;
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:34px;}

.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid var(--line-soft);padding-top:22px;}
.hero-stat b{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-.02em;
}
.hero-stat span{font-size:13px;color:var(--faint);}

.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--sand);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:18px;top:18px;
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;
  border-radius:999px;
  background:var(--lime);
  color:var(--ink);
  font-size:12.5px;font-weight:800;
  box-shadow:var(--shadow-1);
}
.hero-card{
  position:absolute;
  right:-16px;bottom:-16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--shadow-2);
  min-width:172px;
}
.hero-card strong{display:block;font-size:13px;color:var(--faint);font-weight:600;margin-bottom:4px;}
.hero-card em{font-style:normal;font-size:19px;font-weight:800;color:var(--ink);}
.hero-card i{display:block;font-style:normal;font-size:12.5px;color:var(--muted);margin-top:2px;}

/* ============ SECTIONS ============ */
.section{padding:var(--pad-sec) 0;}
.section-white{background:#fff;}
.section-sand{background:var(--sand);}
.section-ink{background:var(--ink);color:#E7EDE9;}
.section-ink h2,.section-ink h3{color:#fff;}

.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;margin-bottom:12px;}
.sec-head p{color:var(--muted);font-size:16px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-head-row .sec-head{margin-bottom:0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;color:var(--ink);
  letter-spacing:.08em;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--lime);border-radius:2px;}

/* ============ 速览卡 ============ */
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--shadow-1);
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D6D0C2;}
.card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.card p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line-soft);}
.card-meta{font-size:13px;color:var(--faint);}
.card-index{
  font-size:12px;font-weight:800;color:var(--ink);
  background:var(--sand);
  border-radius:999px;
  padding:3px 10px;
  letter-spacing:.06em;
}

/* ============ ZIGZAG ============ */
.zig{display:flex;align-items:center;gap:56px;margin-bottom:64px;}
.zig:last-child{margin-bottom:0;}
.zig.reverse{flex-direction:row-reverse;}
.zig-media{flex:1 1 50%;min-width:0;border-radius:var(--r-lg);overflow:hidden;background:var(--sand);aspect-ratio:4/3;position:relative;}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease;}
.zig-media:hover img{transform:scale(1.03);}
.zig-body{flex:1 1 50%;min-width:0;}
.zig-body h3{font-size:24px;line-height:1.4;margin-bottom:14px;}
.zig-body > p{color:var(--muted);font-size:16px;margin-bottom:18px;}
.zig-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:15.5px;
  color:var(--text);
}
.zig-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:9px;height:9px;
  background:var(--lime);
  border:2px solid var(--ink);
  border-radius:2px;
}
.zig-list li b{color:var(--ink);}
.zig-note{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
  background:rgba(18,51,43,.05);
  border-left:3px solid var(--lime);
  border-radius:8px;
  padding:10px 14px;
}

/* ============ 时间线 ============ */
.timeline-wrap{display:flex;gap:56px;align-items:flex-start;}
.timeline-intro{flex:0 0 320px;}
.timeline-intro h2{font-size:28px;margin-bottom:14px;}
.timeline-intro p{color:var(--muted);}
.timeline{flex:1 1 auto;position:relative;padding-left:36px;}
.timeline::before{
  content:"";
  position:absolute;
  left:8px;top:10px;bottom:10px;
  width:2px;
  background:var(--ink);
  opacity:.85;
}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-36px;top:5px;
  width:18px;height:18px;
  border-radius:50%;
  background:var(--lime);
  border:2px solid var(--ink);
  box-sizing:border-box;
}
.timeline-item h3{font-size:18px;margin-bottom:6px;}
.timeline-item p{color:var(--muted);font-size:15px;margin:0;}
.timeline-item .step-time{
  display:inline-block;
  font-size:12.5px;font-weight:800;
  color:var(--orange);
  letter-spacing:.04em;
  margin-bottom:6px;
}

/* ============ 清单区 ============ */
.check-grid{display:flex;gap:24px;flex-wrap:wrap;}
.check-card{
  flex:1 1 320px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.check-card h3{font-size:20px;margin-bottom:8px;}
.check-card > p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:12px 0;
  border-bottom:1px solid var(--line-soft);
  font-size:15.5px;
}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list .dot{
  flex:none;
  width:22px;height:22px;
  border-radius:6px;
  background:var(--lime);
  color:var(--ink);
  font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.check-list .txt b{display:block;color:var(--ink);font-weight:700;}
.check-list .txt span{color:var(--muted);font-size:14px;}

/* ============ FAQ ============ */
.faq{max-width:860px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:#D6D0C2;}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:#D6D0C2;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--sand);
  color:var(--ink);
  font-size:17px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  transition:transform var(--tr),background-color var(--tr);
}
.faq-item[open] summary::after{content:"–";background:var(--lime);}
.faq-body{
  padding:0 22px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  border-top:1px solid var(--line-soft);
  padding-top:16px;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;bottom:-120px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(199,240,76,.28) 0%,rgba(199,240,76,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px;}
.cta-band p{color:#B9C6C1;font-size:15.5px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:#C8D4CF;margin-top:0;padding-top:56px;}
.footer-main{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.4fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand-text{color:#fff;font-size:20px;display:inline-block;margin-bottom:12px;}
.footer-brand .brand-text em{color:var(--lime);font-style:normal;}
.footer-brand p{color:#9FB0AA;font-size:14.5px;line-height:1.8;margin:0;max-width:320px;}
.footer-col h3{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px;font-size:14.5px;}
.footer-col ul li a{color:#A9BAB4;}
.footer-col ul li a:hover{color:var(--lime);}
.footer-contact li{color:#9FB0AA;font-size:14px;line-height:1.7;}
.footer-contact strong{color:#fff;font-weight:700;}

.subscribe-form{display:flex;flex-direction:column;gap:10px;}
.subscribe-form label{font-size:13px;color:#9FB0AA;}
.subscribe-form input{
  height:44px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.22);
  background:#fff;
  color:var(--text);
  padding:0 14px;
  font-size:14.5px;
  width:100%;
}
.subscribe-form input::placeholder{color:var(--faint);}
.subscribe-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(199,240,76,.45);}
.subscribe-form .btn{width:100%;}
.subscribe-form .hint{font-size:12.5px;color:#7E8F89;line-height:1.6;}

.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0 28px;
  font-size:13.5px;
  color:#8FA09A;
}
.footer-bottom span{color:#fff;}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{color:#A9BAB4;}
.footer-links a:hover{color:var(--lime);}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  :root{--pad-sec:56px;}
  .nav-channels{display:none;}
  .header-right .btn-ghost{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero-grid{flex-direction:column;gap:36px;}
  .hero-copy,.hero-visual{flex:1 1 auto;width:100%;}
  .hero-card{right:12px;bottom:12px;}
  .zig,.zig.reverse{flex-direction:column;gap:26px;margin-bottom:46px;}
  .zig-media,.zig-body{width:100%;flex:1 1 auto;}
  .timeline-wrap{flex-direction:column;gap:28px;}
  .timeline-intro{flex:1 1 auto;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px 30px;}
}
@media (max-width:640px){
  :root{--pad-sec:40px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .header-inner{min-height:56px;}
  .brand-text{font-size:17px;}
  .hero{padding:26px 0 44px;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:24px;}
  .hero-stat b{font-size:24px;}
  .hero-card{position:static;margin-top:14px;right:auto;bottom:auto;box-shadow:var(--shadow-1);}
  .hero-media{aspect-ratio:4/3;}
  .sec-head-row{flex-direction:column;align-items:flex-start;}
  .check-grid{flex-direction:column;}
  .cta-band{padding:28px 20px;}
  .cta-actions .btn{width:100%;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .timeline{padding-left:30px;}
  .timeline-item::before{left:-30px;}
}

/* roulang page: category1 */
:root{
  --brand:#12332B;
  --brand-deep:#0D2620;
  --lime:#C7F04C;
  --orange:#FF5B2E;
  --bg:#F6F4EF;
  --white:#FFFFFF;
  --alt:#EDEAE2;
  --text:#222824;
  --muted:#667070;
  --weak:#9AA3A0;
  --border:#E2DDD2;
  --line:#EFEBE2;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(18,51,43,.06);
  --sh-2:0 12px 28px rgba(18,51,43,.10);
  --sec-pad:72px;
}

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

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

body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  text-justify:auto;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-header.is-stuck{box-shadow:0 1px 4px rgba(18,51,43,.10);background:#fff}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--brand);
  color:var(--lime);
  font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.01em;color:var(--brand);white-space:nowrap}
.brand-text em{font-style:normal;font-weight:600;color:var(--muted);font-size:14px;margin-left:2px}

.nav-channels{display:flex;align-items:center;gap:24px}
.nav-channels a{
  position:relative;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;
  left:0;right:100%;bottom:0;
  height:2px;
  background:var(--lime);
  transition:right .18s ease;
}
.nav-channels a:hover{color:var(--brand)}
.nav-channels a:hover::after{right:0}
.nav-channels a.is-active{color:var(--brand);font-weight:700}
.nav-channels a.is-active::after{right:0}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-sm);
  color:var(--brand);
  border:1px solid transparent;
  transition:background-color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--alt);border-color:var(--border)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1.5px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff}
.btn-accent{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-accent:hover{background:#E94E22;border-color:#E94E22;transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(18,51,43,.08);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-lg{height:48px;padding:0 28px}

.link-underline{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--brand);
  padding-bottom:3px;
  border-bottom:2px solid var(--lime);
  transition:color .18s ease,border-color .18s ease;
}
.link-underline:hover{color:var(--brand-deep);border-color:var(--brand)}

.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:var(--r-sm);
  color:var(--brand);
  align-items:center;justify-content:center;
  border:1px solid var(--border);
}
.nav-toggle:hover{background:var(--alt)}

.nav-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.site-header.nav-open .nav-drawer{display:block}
.nav-drawer-inner{padding:14px 24px 22px;display:flex;flex-direction:column;gap:4px}
.nav-drawer-inner a{
  padding:12px 2px;
  font-size:16px;
  font-weight:600;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.nav-drawer-inner a.is-active{color:var(--brand)}
.nav-drawer-actions{display:flex;gap:12px;margin-top:16px}
.nav-drawer-actions .btn{flex:1}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sec-pad) 0}
.section-alt{background:var(--alt)}
.section-white{background:#fff}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);
  background:rgba(18,51,43,.08);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
}
.eyebrow-lime{background:var(--lime);color:var(--brand-deep)}

h1{font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:800}
h3{font-size:18px;line-height:1.45;font-weight:700}

.sec-head{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:32px;
  align-items:end;
  margin-bottom:36px;
}
.sec-head p{color:var(--muted);font-size:15px}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--weak);
  padding:20px 0 0;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:var(--weak)}

/* ---------- 首屏 ---------- */
.hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F4EF 100%);
  padding:40px 0 var(--sec-pad);
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--alt);
  box-shadow:var(--sh-1);
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-tag{
  position:absolute;
  top:18px;left:18px;
  background:var(--lime);
  color:var(--brand-deep);
  font-size:13px;font-weight:800;
  border-radius:999px;
  padding:6px 14px;
  box-shadow:0 6px 16px rgba(18,51,43,.14);
}
.float-card{
  position:absolute;
  right:16px;bottom:16px;
  background:#fff;
  border-radius:var(--r-md);
  padding:12px 16px;
  box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:2px;
  max-width:calc(100% - 32px);
}
.float-card strong{font-size:14px;color:var(--brand)}
.float-card span{font-size:12px;color:var(--muted);letter-spacing:.04em}

.hero-sub{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:52ch;
}
.hero-actions{
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;
  margin-top:28px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid var(--border);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:26px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.01em}
.hero-stats span{font-size:13px;color:var(--muted)}

/* ---------- 清单双列 ---------- */
.list-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.info-card{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6D0C4}
.icon-badge{
  flex:0 0 44px;
  width:44px;height:44px;
  border-radius:var(--r-md);
  background:rgba(18,51,43,.08);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.info-card h3{margin-bottom:6px}
.info-card p{font-size:14px;color:var(--muted);line-height:1.75}
.info-card .card-tag{
  display:inline-block;
  margin-top:10px;
  font-size:12px;
  font-weight:700;
  color:var(--brand);
  background:rgba(199,240,76,.45);
  border-radius:999px;
  padding:3px 10px;
}

/* ---------- 参数三列 ---------- */
.spec-cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.spec-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.spec-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.spec-card h3{margin-bottom:10px}
.spec-card > p{font-size:14px;color:var(--muted);margin-bottom:16px}
.spec-rows{border-top:1px solid var(--line)}
.spec-rows li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.spec-rows li span{color:var(--muted)}
.spec-rows li strong{color:var(--brand);font-weight:700;text-align:right}

/* ---------- 场景卡 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-media{background:var(--alt);overflow:hidden}
.scene-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .3s ease;
}
.scene-card:hover .scene-media img{transform:scale(1.03)}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{margin:0}
.scene-body p{font-size:14px;color:var(--muted);flex:1}
.scene-body .scene-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);
}
.scene-body .scene-foot span{font-size:13px;color:var(--weak)}
.scene-body .scene-foot a{font-size:14px;font-weight:700;color:var(--brand);border-bottom:2px solid var(--lime);padding-bottom:2px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);border-color:#D6D0C4}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  font-size:17px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  line-height:1;
  color:var(--brand);
  transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--brand)}
.faq-body{
  padding:0 22px 20px;
  border-top:1px solid var(--line);
  margin:0 22px;
  padding-left:0;
  padding-right:0;
  padding-top:16px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);
  border-radius:var(--r-lg);
  margin:0 auto;
  padding:44px 40px;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:32px;
  align-items:center;
  color:#fff;
}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.75);font-size:15px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand);
  color:rgba(255,255,255,.78);
  padding:56px 0 24px;
  margin-top:var(--sec-pad);
}
.footer-main{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand .brand-text{color:#fff;font-size:19px;display:inline-block;margin-bottom:12px}
.footer-brand .brand-text em{color:var(--lime);font-style:normal;font-weight:600;font-size:15px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68)}
.footer-col h3{
  color:#fff;font-size:15px;margin-bottom:16px;
  padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.76)}
.footer-col a:hover{color:var(--lime)}
.footer-contact li{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72)}
.footer-contact strong{color:#fff;font-weight:600}

.subscribe-form{display:flex;flex-direction:column;gap:10px}
.subscribe-form label{font-size:13px;color:rgba(255,255,255,.7)}
.subscribe-form input{
  height:44px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.35);
  background:#fff;
  color:var(--text);
  padding:0 14px;
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.subscribe-form input::placeholder{color:var(--weak)}
.subscribe-form input:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 2px rgba(199,240,76,.45);
}
.subscribe-form .btn{height:44px}
.subscribe-form .hint{font-size:12px;color:rgba(255,255,255,.55);line-height:1.6}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;
  padding-top:22px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom p span{color:var(--lime)}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec-pad:56px}
  .nav-channels{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .sec-head{grid-template-columns:1fr;gap:16px;align-items:start}
  .list-grid{grid-template-columns:1fr}
  .spec-cards{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-main{grid-template-columns:1fr 1fr;gap:30px}
}

@media (max-width:640px){
  :root{--sec-pad:40px}
  .grid-container{padding-left:18px;padding-right:18px}
  .nav-inner{height:56px}
  .nav-actions .btn-ghost{display:none}
  .brand-text{font-size:15px}
  .brand-text em{font-size:12.5px}
  .hero{padding-top:26px}
  .hero-stats{gap:26px}
  .hero-stats strong{font-size:22px}
  .spec-cards{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:30px 22px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .float-card{right:12px;bottom:12px;padding:10px 12px}
  .faq-item summary{font-size:16px;padding:16px 18px}
}