/* roulang page: index */
:root{
  --c-primary:#0E6B4E;
  --c-primary-d:#0A4A36;
  --c-primary-l:#E7F1EC;
  --c-accent:#E85C1F;
  --c-accent-d:#C94A14;
  --c-text:#16211D;
  --c-text-2:#5A6B63;
  --c-border:#DFE6E1;
  --c-line:#EEF3F0;
  --c-bg:#FBFAF6;
  --c-bg-alt:#F2F6F3;
  --c-success:#1F8A5B;
  --c-warn:#B4551E;
  --sh-1:0 1px 2px rgba(22,33,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,33,29,.18);
  --sh-3:0 20px 48px -24px rgba(10,74,54,.28);
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:1.15em;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-alt);}
.section-line{border-top:1px solid var(--c-border);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;line-height:1.6;color:var(--c-primary);
  background:var(--c-primary-l);border-radius:999px;padding:4px 14px;margin-bottom:16px;
}
.sec-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
h2.sec-title{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:0;}
.sec-sub{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:700px;}
h3{font-size:21px;line-height:1.4;font-weight:600;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;transition:all 180ms ease;
}
.text-link .arrow{transition:transform 180ms ease;}
.text-link:hover{border-bottom-color:var(--c-primary);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-m);
  font-size:15.5px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:all 180ms ease;white-space:nowrap;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-2px);color:#fff;}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-l);transform:translateY(-2px);color:var(--c-primary);}
.btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.7);color:#fff;}
.btn-outline-light:hover{background:#fff;color:var(--c-primary-d);transform:translateY(-2px);}
.btn-ghost{background:transparent;border-color:var(--c-border);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px;border-radius:10px;}
.btn-block{width:100%;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;
}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;
  background:var(--c-primary-l);color:var(--c-primary);
  border-radius:999px;padding:3px 12px;font-size:13.5px;line-height:1.6;font-weight:600;
}
.badge-accent{background:var(--c-accent);color:#fff;}
.badge-soft{background:#EFF2EF;color:var(--c-text-2);}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:80;}
.topbar{background:var(--c-bg);border-bottom:1px solid var(--c-border);}
.topbar-inner{display:flex;align-items:center;gap:24px;min-height:64px;padding-top:10px;padding-bottom:10px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-d) 100%);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--c-text);}
.topbar-search{
  flex:1 1 auto;max-width:420px;position:relative;
  display:flex;align-items:center;height:44px;
  background:#fff;border:1px solid var(--c-border);border-radius:10px;
  transition:border-color 180ms ease,box-shadow 180ms ease;
}
.topbar-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(14,107,78,.14);}
.topbar-search svg{position:absolute;left:14px;color:var(--c-text-2);}
.topbar-search input{
  width:100%;height:100%;border:0;background:transparent;border-radius:10px;
  padding:0 14px 0 42px;color:var(--c-text);
}
.topbar-search input::placeholder{color:#8A968F;}
.topbar-search input:focus{outline:none;}
.topbar-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-text);
  align-items:center;justify-content:center;cursor:pointer;
}
.channel-bar{
  position:sticky;top:0;z-index:70;
  background:var(--c-bg);border-bottom:1px solid var(--c-border);
  transition:box-shadow 180ms ease;
}
.channel-bar.is-stuck{box-shadow:var(--sh-2);}
.channel-scroll{
  display:flex;align-items:center;gap:10px;
  padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:14.5px;font-weight:600;transition:all 180ms ease;
}
.channel:hover{background:rgba(14,107,78,.18);}
.channel.is-active{background:var(--c-accent);color:#fff;}
.mobile-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--c-border);
  padding:16px 0 22px;box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .container{display:flex;flex-direction:column;gap:8px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:10px;border:1px solid var(--c-line);
  font-weight:600;color:var(--c-text);background:#fff;
}
.drawer-link:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-foot{margin-top:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7;}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:560px;display:flex;align-items:center;overflow:hidden;background:var(--c-primary-d);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,74,54,.94) 0%,rgba(10,74,54,.80) 46%,rgba(10,74,54,.56) 100%);}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:64px;padding-bottom:64px;}
.hero-copy{max-width:680px;color:#fff;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.38);border-radius:999px;
  padding:5px 16px;font-size:13.5px;line-height:1.6;color:#EAF4EF;margin-bottom:20px;
}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:0;color:#fff;}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.88);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-bar{background:var(--c-primary-l);border-top:1px solid rgba(14,107,78,.35);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.trust-item{padding:24px 26px;border-right:1px solid rgba(14,107,78,.16);}
.trust-item:last-child{border-right:0;}
.trust-num{font-size:30px;font-weight:700;line-height:1.2;color:var(--c-primary-d);font-variant-numeric:tabular-nums;}
.trust-num span{font-size:16px;font-weight:600;margin-left:3px;}
.trust-desc{margin-top:6px;font-size:13.5px;line-height:1.6;color:var(--c-text-2);}

/* ---------- 价值主张 ---------- */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.value-left h2{font-size:30px;line-height:1.3;font-weight:700;}
.value-left p{margin-top:18px;color:var(--c-text-2);}
.value-points{border-left:1px solid var(--c-border);padding-left:48px;display:flex;flex-direction:column;gap:30px;}
.point{display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;}
.point-num{font-size:28px;font-weight:700;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.point h3{font-size:19px;font-weight:700;}
.point p{margin-top:6px;font-size:15.5px;color:var(--c-text-2);}
.point .text-link{margin-top:10px;}

/* ---------- 功能分组 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feature-row + .feature-row{margin-top:72px;}
.feature-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-1);}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 320ms ease;}
.feature-media:hover img{transform:scale(1.04);}
.feature-row.reverse .feature-body{order:2;}
.feature-body h3{margin-top:14px;}
.feature-body p{margin-top:12px;color:var(--c-text-2);}
.check-list{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:10px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;}
.check-list li svg{flex-shrink:0;margin-top:5px;color:var(--c-primary);}
.feature-body .text-link{margin-top:20px;}

/* ---------- 使用场景时间线 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:20px;}
.tl-step{position:relative;padding:0 26px 0 0;}
.tl-step::before{
  content:"";position:absolute;left:22px;right:0;top:21px;height:1px;background:var(--c-border);
}
.tl-step:last-child::before{display:none;}
.tl-dot{
  position:relative;z-index:2;width:44px;height:44px;border-radius:50%;
  border:1.5px solid var(--c-primary);background:var(--c-bg);
  color:var(--c-primary);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.tl-step.is-current .tl-dot{background:var(--c-primary);color:#fff;}
.tl-step h3{margin-top:18px;font-size:18px;}
.tl-step p{margin-top:8px;font-size:15px;color:var(--c-text-2);max-width:240px;}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:32px;align-items:stretch;}
.case-main{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--sh-1);background:#fff;
}
.case-main img{width:100%;height:100%;min-height:340px;object-fit:cover;transition:transform 420ms ease;}
.case-main:hover img{transform:scale(1.04);}
.case-main-body{
  position:absolute;left:0;right:0;bottom:0;padding:28px;
  background:linear-gradient(0deg,rgba(10,74,54,.94) 0%,rgba(10,74,54,.55) 62%,rgba(10,74,54,0) 100%);
  color:#fff;
}
.case-main-body h3{color:#fff;font-size:20px;margin-top:12px;}
.case-main-body p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.86);}
.case-side{display:flex;flex-direction:column;gap:24px;}
.case-item{
  display:grid;grid-template-columns:96px 1fr;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-l);
  padding:20px;box-shadow:var(--sh-1);transition:all 180ms ease;
}
.case-item:hover{box-shadow:var(--sh-2);border-color:rgba(14,107,78,.35);}
.case-item img{width:96px;height:96px;border-radius:var(--r-m);object-fit:cover;}
.case-item h3{font-size:17px;}
.case-quote{
  margin-top:8px;font-size:14.5px;color:var(--c-text-2);
  border-left:3px solid var(--c-primary);padding-left:12px;line-height:1.7;
}
.case-metric{margin-top:8px;font-size:13.5px;color:var(--c-text-2);}
.case-metric b{color:var(--c-primary);font-variant-numeric:tabular-nums;font-size:15px;}

/* ---------- 最新信息（CMS） ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.news-head .sec-head{margin-bottom:0;}
.filter-pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;}
.filter-pills span{
  background:#fff;border:1px solid var(--c-border);color:var(--c-text-2);
  border-radius:999px;padding:4px 14px;font-size:13.5px;line-height:1.6;
}
.news-card{
  height:100%;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--c-border);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);transition:all 180ms ease;
}
.news-card:hover{box-shadow:var(--sh-2);border-color:rgba(14,107,78,.35);transform:translateY(-2px);}
.news-thumb{display:block;overflow:hidden;background:var(--c-line);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px;}
.news-title{font-size:18px;line-height:1.5;font-weight:700;}
.news-title a{transition:color 180ms ease;}
.news-title a:hover{color:var(--c-primary);}
.news-excerpt{font-size:14.5px;line-height:1.75;color:var(--c-text-2);}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--c-text-2);
}
.empty-state{
  text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed var(--c-border);border-radius:var(--r-l);color:var(--c-text-2);
}
.empty-state svg{color:var(--c-primary);margin:0 auto 14px;}
.empty-state strong{display:block;color:var(--c-text);font-size:17px;margin-bottom:6px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-l);
  padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:all 180ms ease;
}
.price-card:hover{box-shadow:var(--sh-2);}
.price-card.is-featured{border:2px solid var(--c-primary);box-shadow:var(--sh-3);transform:translateY(-12px);}
.price-flag{
  position:absolute;top:-14px;left:28px;background:var(--c-accent);color:#fff;
  border-radius:999px;padding:3px 14px;font-size:13.5px;font-weight:600;line-height:1.6;
}
.price-name{font-size:19px;font-weight:700;}
.price-amount{margin-top:16px;font-size:32px;font-weight:700;line-height:1.1;color:var(--c-primary-d);font-variant-numeric:tabular-nums;}
.price-amount small{font-size:14px;font-weight:500;color:var(--c-text-2);margin-left:6px;}
.price-note{margin-top:10px;font-size:14.5px;color:var(--c-text-2);}
.price-list{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-direction:column;gap:12px;font-size:15px;}
.price-list li{display:flex;gap:10px;align-items:flex-start;color:var(--c-text);}
.price-list li.off{color:#9AA69F;}
.price-list li svg{flex-shrink:0;margin-top:5px;}
.price-card .btn{margin-top:28px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px;align-items:start;}
details.faq{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;transition:all 180ms ease;
}
details.faq[open]{border-left:3px solid var(--c-primary);background:#FCFEFC;}
details.faq summary{
  list-style:none;cursor:pointer;padding:20px 52px 20px 22px;position:relative;
  font-size:16.5px;font-weight:600;line-height:1.6;min-height:56px;display:flex;align-items:center;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{
  content:"";position:absolute;right:22px;top:50%;width:14px;height:14px;
  transform:translateY(-50%);transition:transform 240ms ease;
  background:
    linear-gradient(var(--c-primary),var(--c-primary)) center/14px 1.5px no-repeat,
    linear-gradient(var(--c-primary),var(--c-primary)) center/1.5px 14px no-repeat;
}
details.faq[open] summary::after{transform:translateY(-50%) rotate(90deg);}
.faq-answer{padding:0 22px 22px;color:var(--c-text-2);font-size:15.5px;line-height:1.8;}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--c-primary-d);color:#fff;}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:56px 0;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff;max-width:620px;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.82);font-size:15.5px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0A3B2C;color:rgba(255,255,255,.78);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.7);max-width:300px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);
  transition:all 180ms ease;
}
.footer-social a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.footer-col h4{font-size:15.5px;font-weight:700;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:14.5px;color:rgba(255,255,255,.72);transition:color 180ms ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--c-primary);color:#fff;border:0;cursor:pointer;
  display:none;align-items:center;justify-content:center;box-shadow:var(--sh-2);z-index:90;
  transition:all 180ms ease;
}
.to-top.is-visible{display:inline-flex;}
.to-top:hover{background:var(--c-primary-d);transform:translateY(-2px);}

/* ---------- 覆盖 Foundation 默认外观 ---------- */
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}
.grid-margin-y{margin-top:-12px;margin-bottom:-12px;}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px;}
[type="search"],[type="text"],input{box-shadow:none;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .hero{min-height:520px;}
  .hero h1{font-size:32px;}
  .value-grid,.feature-row,.case-grid{grid-template-columns:1fr;gap:36px;}
  .value-points{border-left:0;padding-left:0;border-top:1px solid var(--c-border);padding-top:36px;}
  .feature-row.reverse .feature-body{order:0;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:36px 0;}
  .tl-step:nth-child(2)::before{display:none;}
  .price-grid{grid-template-columns:1fr;gap:36px;}
  .price-card.is-featured{transform:none;border-top:4px solid var(--c-accent);}
  .faq-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .topbar-search{max-width:none;}
  .topbar-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .case-main img{min-height:260px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  h2.sec-title{font-size:23px;}
  h3{font-size:19px;}
  .hero{min-height:480px;}
  .hero-inner{padding-top:48px;padding-bottom:48px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-cta .btn{width:100%;}
  .trust-grid{grid-template-columns:1fr 1fr;}
  .trust-item{border-right:0;border-bottom:1px solid rgba(14,107,78,.16);padding:20px;}
  .trust-item:nth-child(odd){border-right:1px solid rgba(14,107,78,.16);}
  .trust-num{font-size:24px;}
  .timeline{grid-template-columns:1fr;gap:28px;}
  .tl-step{padding:0 0 0 30px;}
  .tl-step::before{left:21px;right:auto;top:44px;bottom:-28px;width:1px;height:auto;background:var(--c-primary);}
  .tl-step:last-child::before{display:none;}
  .tl-step .tl-dot{position:absolute;left:0;top:0;width:36px;height:36px;font-size:14px;}
  .tl-step h3{margin-top:0;padding-left:30px;}
  .tl-step p{padding-left:30px;max-width:none;}
  .case-item{grid-template-columns:1fr;gap:14px;}
  .case-item img{width:100%;height:180px;}
  .price-amount{font-size:28px;}
  .cta-band-inner{padding:44px 0;flex-direction:column;align-items:flex-start;}
  .cta-band-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;}
  .brand-name{font-size:17px;}
  .to-top{right:16px;bottom:16px;}
}

/* roulang page: article */
:root{
  --c-primary:#0E6B4E;
  --c-primary-d:#0A4A36;
  --c-primary-l:#E7F1EC;
  --c-accent:#E85C1F;
  --c-accent-d:#C94A14;
  --c-text:#16211D;
  --c-text-2:#5A6B63;
  --c-border:#DFE6E1;
  --c-sep:#EEF3F0;
  --c-bg:#FBFAF6;
  --c-bg-alt:#F2F6F3;
  --c-success:#1F8A5B;
  --c-warn:#B4551E;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(22,33,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,33,29,.18);
  --sh-3:0 20px 48px -24px rgba(10,74,54,.28);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16.5px;line-height:1.85;letter-spacing:.01em;
  color:var(--c-text);background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{list-style:none;padding-left:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60;background:var(--c-bg)}
.brand-row{border-bottom:1px solid var(--c-border);background:var(--c-bg)}
.brand-row-inner{display:flex;align-items:center;gap:20px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-text)}
.brand:hover{color:var(--c-primary)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;white-space:nowrap}
.brand-name em{font-style:normal;color:var(--c-primary)}
.search-box{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;background:#fff;border:1px solid var(--c-border);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,107,78,.12)}
.search-box svg{flex:0 0 auto;color:var(--c-text-2)}
.search-box input{flex:1 1 auto;border:0;background:transparent;outline:none;font-size:15px;min-width:0}
.search-box input::placeholder{color:#93a29b}
.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);border-radius:var(--r-sm);
  align-items:center;justify-content:center;color:var(--c-text);background:#fff;margin-left:auto;
}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);font-size:15.5px;font-weight:600;
  border:1.5px solid transparent;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14.5px;border-radius:10px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary);font-size:15px}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(3px)}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:50;background:var(--c-bg);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease;
}
.channel-bar.is-stuck{box-shadow:var(--sh-2)}
.channel-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:12px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:999px;background:var(--c-primary-l);color:var(--c-primary);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.channel:hover{background:rgba(14,107,78,.16);color:var(--c-primary-d)}
.channel.is-active{background:var(--c-accent);color:#fff}
.channel.is-active:hover{background:var(--c-accent-d);color:#fff}

/* ---------- 移动抽屉 ---------- */
.drawer{
  display:none;background:#fff;border-bottom:1px solid var(--c-border);
  padding:18px 0 22px;
}
.drawer.is-open{display:block}
.drawer-search{
  max-width:none;width:100%;margin-bottom:18px;height:44px;
  display:flex;align-items:center;gap:10px;padding:0 14px;
  border:1px solid var(--c-border);border-radius:10px;background:var(--c-bg-alt);
}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:15px}
.drawer-label{font-size:13.5px;color:var(--c-text-2);margin-bottom:10px;letter-spacing:.04em}
.drawer-link{
  display:block;padding:12px 4px;border-bottom:1px solid var(--c-sep);
  color:var(--c-text);font-size:16px;font-weight:600;
}
.drawer-link:last-child{border-bottom:0}
.drawer-link.is-active{color:var(--c-accent)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:13.5px;color:var(--c-text-2);
}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#bfcbc5}
.breadcrumb .current{color:var(--c-text);font-weight:600;max-width:62%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article{padding-bottom:8px}
.article-head{max-width:860px;margin:0 auto;padding:26px 0 40px;text-align:left}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13.5px;font-weight:600;
}
.article-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:0;
  margin:18px 0 0;color:var(--c-text);
}
.article-sub{font-size:17px;color:var(--c-text-2);margin-top:14px;line-height:1.7}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13.5px;color:var(--c-text-2);
}
.article-meta i{display:inline-block;width:1px;height:12px;background:var(--c-border)}
.article-cover{
  margin-top:30px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  border:1px solid var(--c-border);background:#fff;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 正文 ---------- */
.article-body{max-width:760px;margin:0 auto;font-size:16.5px;line-height:1.9;padding:8px 0 4px}
.article-body p{margin-bottom:1.1em}
.article-body h2{
  font-size:26px;line-height:1.35;font-weight:700;letter-spacing:0;
  margin:44px 0 18px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:600;margin:32px 0 14px}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px;line-height:1.75}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{margin:0 0 1.2em;counter-reset:od}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:8px;counter-increment:od;line-height:1.75}
.article-body ol li::before{
  content:counter(od);position:absolute;left:0;top:.2em;width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;line-height:20px;text-align:center;font-weight:700;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-primary-l);color:#233c32;
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-md) var(--r-md) 0;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:22px 0;width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13.5px;color:var(--c-text-2);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:10px 14px;text-align:left}
.article-body th{background:var(--c-primary-l);font-weight:600}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body strong{font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:32px 0}

/* ---------- 空态 ---------- */
.article-empty{
  max-width:760px;margin:0 auto;padding:56px 24px;text-align:center;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.article-empty svg{color:var(--c-primary);margin:0 auto 14px}
.article-empty .empty-title{font-size:20px;font-weight:700;margin-bottom:6px}
.article-empty .empty-desc{font-size:13.5px;color:var(--c-text-2);margin-bottom:20px}

/* ---------- 文末 ---------- */
.article-foot{
  max-width:760px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--c-border);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-border);color:var(--c-text-2);font-size:13.5px;
  transition:border-color .18s ease,color .18s ease;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-2)}
.share-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--c-primary);border-radius:50%;color:var(--c-primary);background:#fff;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.share-btn:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}

/* ---------- 相关阅读 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--c-bg-alt);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:0}
.section-head p{font-size:15px;color:var(--c-text-2);margin-top:8px}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.card:hover{box-shadow:var(--sh-2);border-color:rgba(14,107,78,.35);transform:translateY(-3px)}
.card-thumb{overflow:hidden;background:var(--c-bg-alt)}
.card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600;margin:12px 0 10px}
.card-body h3 a{color:var(--c-text)}
.card-body h3 a:hover{color:var(--c-primary)}
.card-body p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--c-text-2);
}
.card-foot .more{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card-foot .more svg{transition:transform .18s ease}
.card:hover .card-foot .more svg{transform:translateX(3px)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-d);color:#fff;border-radius:0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:52px 0;
}
.cta-inner h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.78);margin-top:10px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex:0 0 auto}
.cta-actions .btn-light{background:#fff;color:var(--c-primary-d)}
.cta-actions .btn-light:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px)}
.cta-actions .btn-outline{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-d);color:rgba(255,255,255,.72);padding-top:58px}
.footer-grid{
  display:grid;gap:36px;grid-template-columns:1.5fr 1fr 1fr 1fr;
  padding-bottom:44px;
}
.footer-brand .brand{color:#fff}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:#fff;color:var(--c-primary-d)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin-top:16px;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.85);
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.footer-social a:hover{background:#fff;color:var(--c-primary-d);border-color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,background .18s ease;z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-accent);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .search-box{display:none}
  .brand-actions{display:none}
  .menu-toggle{display:inline-flex}
  .brand-row-inner{min-height:60px}
  .article-head h1{font-size:32px}
  .section{padding:60px 0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
  .article-body h2{font-size:23px;margin:36px 0 16px}
  .article-body h3{font-size:19px}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.82}
  .container{padding:0 16px}
  .brand-name{font-size:17px}
  .breadcrumb{padding-top:16px;font-size:13px}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .article-head{padding:18px 0 30px}
  .article-head h1{font-size:28px}
  .article-sub{font-size:15.5px}
  .article-cover{border-radius:var(--r-md);margin-top:22px}
  .article-body{font-size:16px;padding-top:0}
  .article-body h2{font-size:21px;margin:32px 0 14px;padding-left:11px;border-left-width:3px}
  .article-body h3{font-size:18px}
  .article-foot{flex-direction:column;align-items:flex-start;margin-top:34px}
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .to-top{right:14px;bottom:16px;width:42px;height:42px}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E6B4E;
  --c-primary-d:#0A4A36;
  --c-primary-l:#E7F1EC;
  --c-accent:#E85C1F;
  --c-accent-d:#C94A14;
  --c-text:#16211D;
  --c-text-2:#5A6B63;
  --c-border:#DFE6E1;
  --c-line:#EEF3F0;
  --c-bg:#FBFAF6;
  --c-bg-alt:#F2F6F3;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --sh-1:0 1px 2px rgba(22,33,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,33,29,.18);
  --sh-3:0 20px 48px -24px rgba(10,74,54,.28);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0 0 16px;color:var(--c-text);letter-spacing:0;font-weight:700;line-height:1.3}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.3;margin-bottom:18px}
h3{font-size:21px;line-height:1.4;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-24px}
.grid-margin-y>.cell{margin-top:24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;background:var(--c-bg);border-bottom:1px solid var(--c-border);z-index:40}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--c-primary-d);white-space:nowrap}
.search{position:relative;flex:1 1 auto;max-width:420px}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--c-text-2)}
.search input{
  width:100%;height:44px;padding:0 16px 0 42px;border:1px solid var(--c-border);border-radius:10px;
  background:#fff;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease
}
.search input::placeholder{color:#93A29A}
.search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,107,78,.12);outline:none}
.top-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;cursor:pointer;color:var(--c-primary-d)
}
.nav-toggle:hover{background:var(--c-primary-l)}

/* 抽屉 */
.drawer{
  display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--c-border);
  box-shadow:var(--sh-2);padding:16px 24px 22px
}
.drawer.is-open{display:block}
.drawer-title{font-size:13.5px;color:var(--c-text-2);font-weight:600;margin:8px 0 10px}
.drawer a{
  display:block;padding:11px 12px;border-radius:10px;border-left:3px solid transparent;font-size:15.5px;font-weight:600
}
.drawer a:hover{background:var(--c-primary-l);border-left-color:var(--c-primary);color:var(--c-primary-d)}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;top:0;z-index:30;background:var(--c-bg);border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease
}
.channel-bar.is-stuck{box-shadow:var(--sh-2)}
.channel-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease
}
.channel:hover{background:rgba(14,107,78,.16)}
.channel.is-active{background:var(--c-accent);color:#fff}
.channel.is-active:hover{background:var(--c-accent-d)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;
  border:1.5px solid transparent;border-radius:var(--r-m);font-size:16px;font-weight:600;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-primary-d)}
.btn-light:hover{background:#F4F8F5;transform:translateY(-2px)}
.btn-sm{min-height:42px;padding:0 18px;font-size:15px;border-radius:10px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px}
.link-more svg{transition:transform .18s ease}
.link-more:hover{text-decoration:underline}
.link-more:hover svg{transform:translateX(2px)}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;display:flex;align-items:center;min-height:320px;color:#fff;
  background-image:linear-gradient(rgba(10,74,54,.62),rgba(10,74,54,.62)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center
}
.hero-inner{padding-top:44px;padding-bottom:44px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:16px}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff}
.cat-hero h1{color:#fff;max-width:22em;margin-bottom:14px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.9);margin-bottom:26px;max-width:34em}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-alt)}
.eyebrow{
  display:inline-block;font-size:13.5px;font-weight:600;color:var(--c-primary);letter-spacing:.06em;margin-bottom:10px
}

/* 导语区 */
.intro-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.intro-grid p{font-size:16.5px;color:#33433C}
.intro-figure{border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-border)}
.intro-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}

/* 数据条 */
.stat-strip{border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);background:#fff}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0}
.stat-item{border-left:2px solid var(--c-primary-l);padding-left:16px}
.stat-num{font-size:28px;font-weight:700;color:var(--c-primary-d);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{font-size:13.5px;color:var(--c-text-2);margin-top:4px}

/* 锚点条 */
.anchor-bar{
  position:sticky;top:var(--nav-h);z-index:25;background:rgba(251,250,246,.96);
  border-bottom:1px solid var(--c-border);backdrop-filter:blur(6px)
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:10px 24px;scrollbar-width:none}
.anchor-scroll::-webkit-scrollbar{display:none}
.anchor-scroll a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-text-2);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease
}
.anchor-scroll a:hover{color:var(--c-primary);border-color:rgba(14,107,78,.4);background:var(--c-primary-l)}

/* 分组标题 */
.group{scroll-margin-top:calc(var(--nav-h) + 60px)}
.group-head{max-width:760px;margin-bottom:36px}
.group-head p{color:var(--c-text-2);font-size:16.5px}

/* 卡片 */
.card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-l);box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease
}
.card:hover{box-shadow:var(--sh-2);border-color:rgba(14,107,78,.35);transform:translateY(-3px)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-body h3{margin:0;font-size:19px}
.card-body p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.75}
.card-body .link-more{margin-top:auto}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:13.5px;font-weight:600;align-self:flex-start
}

/* 要点清单 */
.check-panel{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-l);box-shadow:var(--sh-1);padding:40px
}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 32px;margin-top:8px}
.check-item{display:flex;gap:12px;align-items:flex-start;font-size:16px}
.check-item svg{flex:0 0 auto;margin-top:6px;color:var(--c-primary)}

/* CTA 带 */
.cta-band{background:var(--c-primary-d);color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;margin-bottom:10px;font-size:28px}
.cta-inner p{color:rgba(255,255,255,.82);max-width:46em;margin:0}

/* 页脚 */
.site-footer{background:var(--c-primary-d);color:rgba(255,255,255,.78);padding:64px 0 24px}
.site-footer .brand-name{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.14);color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72);margin:16px 0 18px;max-width:30em}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.1);color:#fff;transition:background-color .18s ease,transform .18s ease
}
.footer-social a:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.62)
}

/* 返回顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:999px;border:0;cursor:pointer;
  background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-3);opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:50
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--c-primary-d);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 24px}
}
@media screen and (max-width:1023px){
  h1{font-size:32px}
  h2{font-size:25px}
  .section{padding:72px 0}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .top-actions .btn-ghost{display:none}
}
@media screen and (max-width:767px){
  .search{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-inner{gap:12px}
  .brand-name{font-size:17px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .check-list{grid-template-columns:1fr}
  .check-panel{padding:26px}
}
@media screen and (max-width:639px){
  body{font-size:16px}
  .container{padding:0 16px}
  .anchor-scroll{padding:10px 16px}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:19px}
  .section{padding:56px 0}
  .cat-hero{min-height:260px}
  .hero-inner{padding-top:36px;padding-bottom:36px;text-align:left}
  .hero-sub{font-size:15.5px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:18px}
  .stat-num{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .top-actions .btn-primary{padding:0 14px;font-size:14.5px}
  .card-body{padding:20px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E6B4E;
  --c-primary-d:#0A4A36;
  --c-primary-l:#E7F1EC;
  --c-accent:#E85C1F;
  --c-accent-d:#C94A14;
  --c-text:#16211D;
  --c-text-2:#5A6B63;
  --c-border:#DFE6E1;
  --c-line:#EEF3F0;
  --c-bg:#FBFAF6;
  --c-bg-alt:#F2F6F3;
  --c-white:#FFFFFF;
  --sh-1:0 1px 2px rgba(22,33,29,.06);
  --sh-2:0 8px 24px -12px rgba(22,33,29,.18);
  --sh-3:0 20px 48px -24px rgba(10,74,54,.28);
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease}
a:hover{color:var(--c-accent)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--c-text);font-weight:700;line-height:1.3}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;margin-top:0}
h3{font-size:21px;font-weight:600;line-height:1.4}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.grid-container,.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.num{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-m);
  border:1.5px solid transparent;
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-primary-d)}
.btn-light:hover{background:var(--c-primary-l);color:var(--c-primary-d);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;border-radius:10px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.text-link svg{transition:transform .18s ease}
.text-link:hover svg{transform:translateX(2px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:13.5px;
  font-weight:600;
  line-height:1.6;
}
.badge-accent{background:var(--c-accent);color:#fff}

/* ---------- 品牌行 ---------- */
.brand-bar{background:var(--c-bg);border-bottom:1px solid var(--c-border)}
.brand-bar-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--c-text);font-weight:700}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;flex:none;
}
.brand-name{font-size:18px;letter-spacing:0}
.site-search{
  flex:1;
  max-width:420px;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:10px;
}
.site-search svg{flex:none;color:var(--c-text-2)}
.site-search input{
  flex:1;
  height:100%;
  border:0;
  outline:0;
  background:transparent;
  font-family:inherit;
  font-size:15px;
  color:var(--c-text);
}
.site-search input::placeholder{color:#8C9A93}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--c-border);border-radius:10px;
  color:var(--c-text);cursor:pointer;
}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;
  top:0;
  z-index:40;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .18s ease;
}
.channel-bar.is-stuck{box-shadow:var(--sh-2)}
.channel-scroll{
  display:flex;
  gap:10px;
  padding:12px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel{
  flex:none;
  padding:8px 18px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:14.5px;
  font-weight:600;
  transition:background-color .18s ease,color .18s ease;
}
.channel:hover{background:rgba(14,107,78,.12);color:var(--c-primary)}
.channel.is-active{background:var(--c-accent);color:#fff}
.channel.is-active:hover{background:var(--c-accent-d);color:#fff}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--c-primary);
  padding:20px 0 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer h4{font-size:14px;color:var(--c-text-2);font-weight:600;margin-bottom:10px}
.mobile-drawer ul{margin-bottom:18px}
.mobile-drawer li a{
  display:block;
  padding:11px 0;
  border-bottom:1px solid var(--c-line);
  color:var(--c-text);
  font-size:15px;
}
.mobile-drawer li a:hover{color:var(--c-primary)}

/* ---------- 页面头部 ---------- */
.page-head{
  background:var(--c-primary-l);
  border-bottom:1px solid var(--c-border);
  padding:44px 0 40px;
}
.page-head-top{display:flex;align-items:flex-start;justify-content:space-between;gap:32px}
.page-head h1{max-width:760px;margin-bottom:14px}
.page-head-sub{margin:0;color:var(--c-text-2);font-size:16.5px;max-width:640px}
.crumb{font-size:13.5px;color:var(--c-text-2);white-space:nowrap;padding-top:8px}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{margin:0 6px;color:#A9B6AF}
.crumb .current{color:var(--c-text);font-weight:600}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}

/* ---------- 主体布局 ---------- */
.layout{padding:72px 0 88px}
.side-col{width:280px}
.side-sticky{position:sticky;top:96px}
.side-card{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-l);
  padding:22px;
  box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-nav li a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:9px 12px;
  border-radius:10px;
  color:var(--c-text);
  font-size:15px;
}
.side-nav li a:hover{background:var(--c-primary-l);color:var(--c-primary)}
.side-nav li a.is-current{background:var(--c-primary-l);color:var(--c-primary);font-weight:600}
.side-nav .count{font-size:13.5px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.side-contact p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.side-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 12px;
  border:1px solid var(--c-border);
  border-radius:10px;
  background:var(--c-bg);
}
.side-search input{border:0;outline:0;background:transparent;font-family:inherit;font-size:14.5px;width:100%;color:var(--c-text)}

/* ---------- 主内容 ---------- */
.main-col{padding-left:40px}
.block-head{margin-bottom:32px}
.block-head h2{margin-bottom:10px}
.block-head p{color:var(--c-text-2);margin:0;max-width:680px}
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--c-primary);
  opacity:.35;
}
.timeline-item{position:relative;padding-bottom:34px}
.timeline-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;
  left:-28px;
  top:8px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--c-primary);
  border:2px solid var(--c-bg);
  box-shadow:0 0 0 3px rgba(14,107,78,.14);
}
.tl-body{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-l);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.tl-body:hover{box-shadow:var(--sh-2);border-color:rgba(14,107,78,.35);transform:translateY(-2px)}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.tl-meta time{font-size:13.5px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.tl-body h3{margin-bottom:10px}
.tl-body h3 a{color:var(--c-text)}
.tl-body h3 a:hover{color:var(--c-primary)}
.tl-body p{font-size:15.5px;color:var(--c-text-2);margin-bottom:14px}
.tl-media{display:flex;gap:18px;align-items:flex-start}
.tl-thumb{
  flex:none;
  width:150px;
  aspect-ratio:4/3;
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--c-bg-alt);
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.tl-body:hover .tl-thumb img{transform:scale(1.04)}

/* ---------- 对比块 ---------- */
.compare{
  margin-top:72px;
  padding:56px 0;
  background:var(--c-bg-alt);
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
}
.compare-card{
  height:100%;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-l);
  padding:28px;
  box-shadow:var(--sh-1);
}
.compare-card.alt{border-color:rgba(232,92,31,.35)}
.compare-card.alt .compare-top{color:var(--c-accent)}
.compare-top{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  font-weight:600;
  color:var(--c-primary);
  margin-bottom:14px;
}
.compare-card h3{margin-bottom:16px}
.check-list li{
  display:flex;
  gap:10px;
  padding:9px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15.5px;
  color:var(--c-text);
}
.check-list li:last-child{border-bottom:0}
.check-list svg{flex:none;margin-top:6px;color:var(--c-primary)}
.concern-list li{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--c-line);font-size:15.5px;color:var(--c-text-2)}
.concern-list li:last-child{border-bottom:0}
.concern-list .dash{flex:none;margin-top:10px;width:10px;height:2px;background:#B7C4BD}
.wide-figure{
  margin:44px 0 0;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--c-border);
  box-shadow:var(--sh-2);
  background:var(--c-bg-alt);
}
.wide-figure img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ---------- 数据指标 ---------- */
.metrics{padding:88px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}
.metric{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-l);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.metric:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:rgba(14,107,78,.35)}
.metric .value{
  font-size:32px;
  font-weight:700;
  line-height:1.2;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.metric .value small{font-size:15px;font-weight:600;color:var(--c-text-2);margin-left:4px}
.metric h3{font-size:16px;margin-bottom:6px}
.metric p{font-size:13.5px;color:var(--c-text-2);margin:0}

/* ---------- FAQ ---------- */
.faq{padding:0 0 88px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px}
.faq-item{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.is-open{border-color:rgba(14,107,78,.45);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:16px 22px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
}
.faq-q .icon{flex:none;position:relative;width:16px;height:16px}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  transition:transform .24s ease,opacity .24s ease;
}
.faq-q .icon::before{left:0;top:7px;width:16px;height:2px}
.faq-q .icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-q .icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{
  padding:0 22px 20px 22px;
  font-size:15px;
  color:var(--c-text-2);
  border-left:3px solid var(--c-primary);
  margin-left:22px;
  padding-left:16px;
}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--c-primary-d);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:620px;font-size:15.5px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-2);max-width:280px;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border:1px solid var(--c-border);
  border-radius:10px;
  color:var(--c-text-2);
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-l)}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col li a{
  display:inline-block;
  padding:6px 0;
  font-size:14.5px;
  color:var(--c-text-2);
}
.footer-col li a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid var(--c-line);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13.5px;
  color:var(--c-text-2);
}
.to-top{
  position:fixed;
  right:24px;
  bottom:28px;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  border:0;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background-color .18s ease;
  cursor:pointer;
  z-index:50;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-d)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  h1{font-size:32px}
  h2{font-size:25px}
  .brand-bar-inner{height:60px;gap:16px}
  .site-search{max-width:none}
  .brand-actions .btn-ghost{display:none}
  .page-head{padding:36px 0 32px}
  .page-head-top{flex-direction:column-reverse;gap:14px}
  .crumb{padding-top:0}
  .layout{padding:48px 0 64px}
  .side-col{width:100%}
  .side-sticky{position:static}
  .side-desktop{display:none}
  .side-dropdown{
    display:block;
    margin-bottom:28px;
    background:#fff;
    border:1px solid var(--c-border);
    border-radius:var(--r-l);
    box-shadow:var(--sh-1);
    overflow:hidden;
  }
  .side-dropdown summary{
    list-style:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:16px 20px;
    font-size:15.5px;
    font-weight:600;
    cursor:pointer;
    color:var(--c-text);
  }
  .side-dropdown summary::-webkit-details-marker{display:none}
  .side-dropdown .inner{padding:0 20px 18px}
  .main-col{padding-left:0;margin-top:8px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .tl-media{flex-direction:column}
  .tl-thumb{width:100%;aspect-ratio:16/9}
  .compare{padding:48px 0;margin-top:56px}
  .metrics{padding:64px 0}
  .faq{padding-bottom:64px}
}
@media screen and (max-width:1023px){
  .side-dropdown{display:block}
}
@media screen and (min-width:1024px){
  .side-dropdown{display:none}
}
@media screen and (max-width:639px){
  .grid-container,.container{padding-left:16px;padding-right:16px}
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:19px}
  .site-search{display:none}
  .menu-toggle{display:inline-flex}
  .brand-actions{margin-left:auto}
  .brand-actions .btn-primary{height:42px;padding:0 16px;font-size:14px}
  .page-head{padding:30px 0 26px}
  .timeline{padding-left:22px}
  .tl-dot{left:-22px}
  .tl-body{padding:20px}
  .metric-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .wide-figure img{aspect-ratio:4/3}
  .to-top{right:16px;bottom:18px}
}