/* roulang page: index */
:root{
  --c-primary:#0E5A4F;
  --c-primary-d:#0A4340;
  --c-primary-l:#4FA894;
  --c-accent:#E0A038;
  --c-accent-d:#C0761A;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2EF;
  --c-ink:#16241F;
  --c-ink-2:#5B6B65;
  --c-line:#DCE3DE;
  --c-success:#2F7D5C;
  --c-warn:#C0761A;
  --c-error:#B3402E;
  --grad-brand:linear-gradient(135deg,#0E5A4F 0%,#2C8A72 52%,#59B79B 100%);
  --sh-1:0 1px 2px rgba(16,42,36,.04),0 6px 18px -8px rgba(16,42,36,.10);
  --sh-2:0 14px 34px -14px rgba(14,90,79,.24);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:14px;
  --r-pill:999px;
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover,a:focus{color:var(--c-primary-d);}
button{font-family:inherit;}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-row{margin-left:-12px;margin-right:-12px;}
.grid-row>.cell{padding-left:12px;padding-right:12px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(150%) blur(10px);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header::before{content:"";display:block;height:3px;background:var(--grad-brand);}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh-1);}
.nav-row{display:flex;align-items:center;gap:20px;height:73px;transition:height .2s ease;}
.site-header.is-scrolled .nav-row{height:61px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:42px;height:42px;border-radius:13px;background:var(--grad-brand);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;letter-spacing:.04em;font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.brand-text small{font-size:10.5px;color:var(--c-ink-2);letter-spacing:.16em;text-transform:uppercase;}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-ink-2);white-space:nowrap;
}
.nav-link:hover,.nav-link:focus{color:var(--c-primary);background:rgba(79,168,148,.12);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:16px;flex:0 0 auto;}
.nav-tel{font-size:14px;font-weight:700;color:var(--c-ink-2);white-space:nowrap;font-variant-numeric:tabular-nums;}
.nav-tel:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(79,168,148,.14);color:var(--c-primary-d);border-color:var(--c-primary-d);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover,.btn-light:focus{background:#F0F7F4;color:var(--c-primary-d);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--c-primary);}
.link-arrow i{font-style:normal;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 0;background:linear-gradient(180deg,#F6F4EE 0%,#EFF4F0 100%);overflow:hidden;}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,168,148,.16) 0%,rgba(79,168,148,0) 70%);
  pointer-events:none;
}
.hero-grid{row-gap:40px;position:relative;z-index:2;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(224,160,56,.16);color:var(--c-accent-d);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.kicker::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;
  letter-spacing:-.01em;margin:18px 0 16px;color:var(--c-ink);
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:580px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:26px;}
.hero-points li{position:relative;padding-left:16px;font-size:14px;color:var(--c-ink-2);}
.hero-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--c-primary-l);
}
.hero-figure{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);aspect-ratio:16/11;background:var(--c-primary);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(14,90,79,.66) 0%,rgba(44,138,114,.46) 55%,rgba(89,183,155,.28) 100%);
}
.hero-figure figcaption{position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#fff;}
.hero-figure figcaption strong{display:block;font-size:17px;font-weight:700;letter-spacing:.01em;}
.hero-figure figcaption small{font-size:13px;color:rgba(255,255,255,.88);}
.hero-stats{
  position:relative;z-index:3;
  display:grid;grid-template-columns:repeat(3,1fr);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);margin-top:48px;margin-bottom:-30px;overflow:hidden;
}
.stat{padding:22px 24px;border-right:1px solid var(--c-line);}
.stat:last-child{border-right:0;}
.stat-num{font-size:30px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.1;}
.stat-unit{font-size:14px;font-weight:800;color:var(--c-accent-d);margin-left:4px;}
.stat-label{display:block;font-size:13px;color:var(--c-ink-2);margin-top:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-section) 0;}
.section-lead{padding-top:110px;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:var(--c-ink);}
.section-head h2::after{
  content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--c-accent);margin-top:14px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-ink-2);}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head--center h2::after{margin-left:auto;margin-right:auto;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.section-head--split .section-head--inner{max-width:640px;}

/* ---------- 卖点三连 ---------- */
.feature-grid{row-gap:24px;}
.feature-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.feature-card:hover,.feature-card:focus-visible{
  transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);color:var(--c-ink);
}
.feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;align-self:flex-start;
  min-width:48px;height:34px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(224,160,56,.18);color:var(--c-accent-d);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.feature-body h3{font-size:21px;font-weight:650;line-height:1.4;color:var(--c-ink);}
.feature-body p{font-size:15.5px;color:var(--c-ink-2);}
.feature-body .link-arrow{margin-top:auto;padding-top:8px;}
.mini-stack{display:flex;flex-direction:column;gap:24px;height:100%;}
.mini-card{
  display:flex;gap:18px;flex:1;padding:24px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mini-card:hover,.mini-card:focus-visible{
  transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);color:var(--c-ink);
}
.mini-icon{
  flex:0 0 auto;width:48px;height:48px;border-radius:14px;background:var(--c-surface-2);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
}
.mini-body h3{font-size:18px;font-weight:650;line-height:1.4;margin-bottom:6px;color:var(--c-ink);}
.mini-body p{font-size:14.6px;color:var(--c-ink-2);}
.mini-body .link-arrow{margin-top:10px;font-size:14px;}

/* ---------- 场景图文 ---------- */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.scene-row + .scene-row{margin-top:80px;}
.scene-media{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);aspect-ratio:4/3;background:var(--c-surface-2);}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-row.reverse .scene-media{order:2;}
.scene-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(79,168,148,.16);color:var(--c-primary);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.scene-body h3{font-size:clamp(20px,2.2vw,25px);font-weight:700;line-height:1.4;margin:16px 0 12px;color:var(--c-ink);}
.scene-body p{font-size:15.6px;color:var(--c-ink-2);}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.check-list li{position:relative;padding-left:28px;font-size:15.5px;color:var(--c-ink-2);}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:.18em;width:18px;height:18px;border-radius:50%;
  background:rgba(79,168,148,.2);color:var(--c-primary);
  font-size:11px;font-weight:800;line-height:18px;text-align:center;
}
.scene-body .link-arrow{margin-top:20px;}

/* ---------- 社会认同 ---------- */
.proof-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 36px;
  padding:22px 26px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
}
.proof-bar span{font-size:14px;font-weight:700;color:#8A968F;letter-spacing:.04em;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.quote-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--sh-1);
}
.quote-card::before{
  content:"”";position:absolute;top:2px;right:20px;font-size:56px;line-height:1;
  color:rgba(14,90,79,.14);font-family:Georgia,"Times New Roman",serif;
}
.quote-card p{position:relative;font-size:15.5px;color:var(--c-ink);}
.quote-meta{margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);}
.quote-meta strong{display:block;font-size:15px;color:var(--c-ink);}
.quote-meta small{font-size:13px;color:var(--c-ink-2);}
.data-wall{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;margin-top:40px;
}
.data-item{background:#fff;padding:26px 22px;text-align:center;}
.data-item strong{
  display:block;font-size:32px;font-weight:800;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2;
}
.data-item span{display:block;margin-top:4px;font-size:13.5px;color:var(--c-ink-2);}

/* ---------- 最新资讯 ---------- */
.news-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:24px;align-items:start;}
.news-lead{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-lead:hover,.news-lead:focus-visible{
  transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);color:var(--c-ink);
}
.news-lead-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.news-lead-media img{width:100%;height:100%;object-fit:cover;}
.news-lead-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-lead-body h3{font-size:22px;font-weight:700;line-height:1.42;color:var(--c-ink);}
.news-lead-body p{font-size:15.4px;color:var(--c-ink-2);}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-2);}
.news-meta time{font-variant-numeric:tabular-nums;}
.news-lead-body .link-arrow{margin-top:auto;padding-top:6px;}
.news-side{display:flex;flex-direction:column;gap:18px;}
.news-item{
  display:flex;gap:16px;align-items:center;padding:16px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-item:hover,.news-item:focus-visible{
  transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);color:var(--c-ink);
}
.news-thumb{flex:0 0 96px;width:96px;height:72px;border-radius:10px;overflow:hidden;background:var(--c-surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-item-body{min-width:0;}
.news-item-body h3{font-size:16px;font-weight:650;line-height:1.45;color:var(--c-ink);margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item-body .news-meta{font-size:12.5px;}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;}
.badge-green{background:rgba(79,168,148,.16);color:var(--c-primary);}
.badge-amber{background:rgba(224,160,56,.2);color:var(--c-accent-d);}
.empty-state{
  text-align:center;padding:60px 24px;background:#fff;
  border:1px dashed var(--c-line);border-radius:var(--r-lg);
}
.empty-icon{
  width:58px;height:58px;margin:0 auto 18px;border-radius:50%;
  background:var(--c-surface-2);color:var(--c-primary-l);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;
}
.empty-state p{font-size:15.5px;color:var(--c-ink-2);margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;}
.faq-item[open]{border-color:rgba(14,90,79,.28);box-shadow:var(--sh-1);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 22px;font-size:17px;font-weight:650;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::-moz-list-bullet{list-style:none;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--c-surface-2);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;line-height:1;transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg);}
.faq-body{padding:0 22px 20px;background:var(--c-surface-2);}
.faq-body p{padding-top:16px;font-size:15.4px;color:var(--c-ink-2);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--grad-brand);border-radius:var(--r-lg);padding:52px 56px;
  box-shadow:var(--sh-2);color:#fff;
}
.cta-band h2{font-size:clamp(23px,2.8vw,32px);font-weight:700;line-height:1.3;color:#fff;}
.cta-band p{margin-top:10px;font-size:15.4px;color:rgba(255,255,255,.88);max-width:640px;}
.cta-band .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sp-section);background:var(--c-surface-2);border-top:1px solid var(--c-line);}
.footer-top{padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}
.footer-brand .brand-text strong{font-size:16px;}
.footer-brand p{margin-top:16px;font-size:14.4px;color:var(--c-ink-2);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:800;color:var(--c-ink);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.4px;color:var(--c-ink-2);}
.footer-links a:hover,.footer-links a:focus{color:var(--c-primary);}
.contact-list{display:flex;flex-direction:column;gap:10px;}
.contact-list li{font-size:14.4px;color:var(--c-ink-2);}
.contact-list strong{color:var(--c-ink);font-weight:700;font-variant-numeric:tabular-nums;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13.4px;color:var(--c-ink-2);
}

/* ---------- 浮层转化条 / 抽屉 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:12px;padding:12px 14px 12px 20px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
  box-shadow:0 18px 40px -18px rgba(14,90,79,.45);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .float-text{font-size:14px;font-weight:700;color:var(--c-ink-2);white-space:nowrap;}
.float-cta .float-tel{font-size:14px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(16,36,31,.45);
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:100;height:100%;width:84vw;max-width:360px;
  background:#fff;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .26s ease;
  box-shadow:-14px 0 34px -18px rgba(16,42,36,.34);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--c-line);}
.drawer-head strong{font-size:15px;font-weight:800;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink);font-size:20px;line-height:1;cursor:pointer;
}
.drawer-nav{flex:1;overflow:auto;padding:10px 12px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 12px;border-radius:12px;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.drawer-nav a::after{content:"›";font-size:20px;color:var(--c-primary-l);}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--c-surface-2);color:var(--c-primary);}
.drawer-foot{padding:16px 18px 24px;border-top:1px solid var(--c-line);}
.drawer-foot .nav-tel{display:block;margin-top:12px;text-align:center;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--sp-section:64px;}
  .nav-main{display:none;}
  .nav-toggle{display:flex;}
  .nav-tel{display:none;}
  .nav-actions{margin-left:auto;}
  .section-lead{padding-top:88px;}
  .scene-row{grid-template-columns:1fr;gap:28px;}
  .scene-row.reverse .scene-media{order:0;}
  .scene-row + .scene-row{margin-top:56px;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .data-wall{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-band .btn{width:100%;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:space-between;
    padding:10px 16px;transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0);}
  body.has-float-cta{padding-bottom:70px;}
}
@media screen and (max-width:640px){
  .container{padding:0 16px;}
  .grid-row{margin-left:-8px;margin-right:-8px;}
  .grid-row>.cell{padding-left:8px;padding-right:8px;}
  .hero{padding-top:40px;}
  .hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-sub{font-size:16px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;margin-top:36px;margin-bottom:0;}
  .stat{border-right:0;border-bottom:1px solid var(--c-line);}
  .stat:last-child{border-bottom:0;}
  .section-head--split{flex-direction:column;align-items:flex-start;}
  .feature-body{padding:20px;}
  .mini-card{flex-direction:column;gap:12px;}
  .quote-grid{grid-template-columns:1fr;}
  .data-wall{grid-template-columns:1fr 1fr;}
  .data-item strong{font-size:26px;}
  .news-lead-body{padding:20px;}
  .news-item{flex-direction:column;align-items:flex-start;}
  .news-thumb{width:100%;height:150px;flex:0 0 auto;}
  .faq-item summary{font-size:16px;padding:14px 18px;}
  .faq-body{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-top{padding:56px 0 0;}
  .footer-bottom{margin-top:36px;}
}

/* roulang page: article */
:root{
  --c-primary:#0E5A4F;
  --c-primary-d:#0A4340;
  --c-primary-l:#4FA894;
  --c-accent:#E0A038;
  --c-accent-d:#C0761A;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2EF;
  --c-ink:#16241F;
  --c-ink-2:#5B6B65;
  --c-line:#DCE3DE;
  --c-ok:#2F7D5C;
  --c-warn:#C0761A;
  --c-err:#B3402E;
  --grad-brand:linear-gradient(135deg,#0E5A4F 0%,#2C8A72 52%,#59B79B 100%);
  --sh-1:0 1px 2px rgba(16,42,36,.04),0 6px 18px -8px rgba(16,42,36,.10);
  --sh-2:0 14px 34px -14px rgba(14,90,79,.24);
  --r-lg:22px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -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;}
a:hover{color:var(--c-primary-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:var(--c-ink);position:relative;padding-left:16px;}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad-brand);}
.section-sub{margin-top:14px;color:var(--c-ink-2);font-size:16px;line-height:1.8;max-width:760px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  transition:box-shadow .24s ease,background-color .24s ease;
}
.site-header::before{content:"";display:block;height:3px;background:var(--grad-brand);}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:#fff;}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  height:73px;transition:height .24s ease;
}
.site-header.is-scrolled .nav-inner{height:61px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-2);
}
.brand-text strong{display:block;font-size:17px;font-weight:800;color:var(--c-ink);line-height:1.25;letter-spacing:.01em;}
.brand-text small{display:block;font-size:11px;color:var(--c-ink-2);letter-spacing:.16em;text-transform:uppercase;}
.nav-main{display:flex;align-items:center;gap:6px;margin:0 auto 0 12px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15.5px;color:var(--c-ink);white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-surface-2);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-tel{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;color:var(--c-ink-2);font-variant-numeric:tabular-nums;}
.nav-tel:hover{color:var(--c-primary);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:650;line-height:1;
  border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  min-height:44px;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:rgba(79,168,148,.12);color:var(--c-primary-d);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#F3FBF8;color:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{padding:11px 22px;font-size:15px;min-height:40px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:650;color:var(--c-primary);}
.text-link i{transition:transform .18s ease;}
.text-link:hover i{transform:translateX(3px);}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
}
.nav-burger:hover{background:var(--c-surface-2);}

/* 抽屉 */
.nav-mask{
  position:fixed;inset:0;z-index:90;background:rgba(16,36,31,.45);
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.nav-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:84vw;max-width:360px;background:#fff;
  display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-18px 0 40px -20px rgba(14,90,79,.35);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{padding:20px;border-bottom:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--c-line);}
.drawer-close:hover{background:var(--c-surface-2);}
.drawer-nav{padding:10px 12px;overflow-y:auto;flex:1;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 14px;border-radius:12px;
  font-size:17px;color:var(--c-ink);
}
.drawer-link i{color:var(--c-ink-2);font-size:13px;}
.drawer-link:hover{background:var(--c-surface-2);color:var(--c-primary);}
.drawer-link.is-active{color:var(--c-primary);font-weight:700;background:var(--c-surface-2);}
.drawer-foot{padding:16px 20px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--c-line);}
.drawer-foot .btn{width:100%;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:56px 0 60px;
  background-image:linear-gradient(135deg,rgba(14,90,79,.88) 0%,rgba(44,138,114,.80) 52%,rgba(89,183,155,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.18);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:14px;color:rgba(255,255,255,.82);}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.55;}
.crumb-current{color:#fff;font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  margin-top:20px;
  font-size:clamp(28px,4vw,46px);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;
  color:#fff;max-width:900px;
}
.article-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;
  font-size:14px;color:rgba(255,255,255,.88);
}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums;}
.meta-item i{opacity:.85;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:650;line-height:1.4;white-space:nowrap;
}
.badge-green{background:rgba(79,168,148,.16);color:var(--c-primary);}
.badge-amber{background:var(--c-accent);color:#3A2A08;}
.badge-hero{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.32);}

/* ---------- 正文 ---------- */
.article-main{padding:64px 0 8px;}
.article-panel{
  max-width:820px;margin:0 auto;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:44px 48px;
}
.article-body{font-size:17px;line-height:1.9;color:var(--c-ink);}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:18px 0;}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:clamp(21px,2.4vw,26px);font-weight:700;line-height:1.4;color:var(--c-ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:4px;background:var(--c-primary);
}
.article-body h3{margin:32px 0 12px;font-size:20px;font-weight:650;line-height:1.45;color:var(--c-primary);}
.article-body h4{margin:24px 0 10px;font-size:17.5px;font-weight:700;color:var(--c-ink);}
.article-body ul,.article-body ol{margin:16px 0 16px 4px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:26px;margin:10px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--c-primary-l);transform:rotate(45deg);
}
.article-body ol{list-style:none;counter-reset:ord;paddding-left:0;padding-left:0;}
.article-body ol li{
  counter-increment:ord;position:relative;padding-left:38px;margin:12px 0;
}
.article-body ol li::before{
  content:counter(ord);position:absolute;left:0;top:.18em;
  width:24px;height:24px;border-radius:8px;
  background:var(--c-surface-2);color:var(--c-primary);
  display:grid;place-items:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:4px solid var(--c-primary);
  background:var(--c-surface-2);border-radius:var(--r-sm);
  color:var(--c-ink);font-size:16.5px;line-height:1.85;
}
.article-body blockquote p{margin:8px 0;}
.article-body img{border-radius:16px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--c-ink-2);text-align:center;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-primary-d);}
.article-body strong{font-weight:700;color:var(--c-ink);}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:15px;line-height:1.7;border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body thead th{background:var(--c-surface-2);color:var(--c-ink);font-weight:700;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);}
.article-body tbody tr:nth-child(even){background:rgba(237,242,239,.55);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{margin:34px 0;border:0;border-top:1px dashed var(--c-line);}
.article-body code{background:var(--c-surface-2);border-radius:6px;padding:2px 6px;font-size:15px;}

.article-empty{
  max-width:820px;margin:0 auto;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:64px 32px;
}
.empty-icon{
  width:72px;height:72px;border-radius:22px;margin:0 auto 20px;
  display:grid;place-items:center;font-size:28px;color:var(--c-primary);
  background:var(--c-surface-2);
}
.article-empty h2{font-size:24px;font-weight:700;}
.article-empty p{margin:12px auto 24px;color:var(--c-ink-2);max-width:520px;}

.article-actions{max-width:820px;margin:32px auto 0;display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}

/* ---------- 延伸阅读 ---------- */
.related-section{padding:72px 0 8px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);}
.related-card{display:flex;flex-direction:column;}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{padding:24px;}
.related-body h3{margin:14px 0 10px;font-size:20px;font-weight:650;line-height:1.45;color:var(--c-ink);}
.related-body p{color:var(--c-ink-2);font-size:15.5px;line-height:1.75;margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-section{padding:80px 0 8px;}
.faq-list{max-width:900px;margin:34px auto 0;display:grid;gap:12px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:rgba(14,90,79,.3);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:14px 22px;
  font-size:17px;font-weight:650;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  background:var(--c-surface-2);color:var(--c-primary);
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item[open] .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;background:var(--c-surface-2);color:var(--c-ink-2);font-size:16px;line-height:1.85;}
.faq-answer p{padding-top:16px;}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:72px 0;}
.cta-inner{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:54px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-inner::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-inner h2{font-size:clamp(22px,2.8vw,32px);font-weight:800;line-height:1.3;position:relative;z-index:1;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.88);font-size:16px;max-width:620px;position:relative;z-index:1;}
.cta-inner .cta-action{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;min-width:220px;}
.cta-note{font-size:13.5px;color:rgba(255,255,255,.82);text-align:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;}
.footer-brand p{margin-top:18px;color:var(--c-ink-2);font-size:15px;line-height:1.8;max-width:340px;}
.footer-col h4{font-size:16px;font-weight:700;color:var(--c-ink);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:var(--c-ink-2);font-size:15px;}
.footer-links a:hover{color:var(--c-primary);}
.contact-list{display:flex;flex-direction:column;gap:12px;color:var(--c-ink-2);font-size:15px;}
.contact-list strong{color:var(--c-ink);font-variant-numeric:tabular-nums;}
.footer-bottom{
  margin-top:44px;padding:22px 0 26px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--c-ink-2);font-size:13.5px;
}

/* ---------- 底部固定转化条 ---------- */
.float-bar{
  position:fixed;right:26px;bottom:26px;z-index:70;
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
  box-shadow:var(--sh-2);padding:8px 10px 8px 20px;
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .24s ease,transform .24s ease;
}
.float-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-bar .float-text{font-size:14.5px;color:var(--c-ink-2);white-space:nowrap;}
.float-bar .float-tel{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  background:var(--c-surface-2);color:var(--c-primary);
}
.float-bar .float-tel:hover{background:rgba(79,168,148,.2);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-main,.nav-actions{display:none;}
  .nav-burger{display:inline-flex;}
  .article-panel{padding:32px 26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-inner{padding:40px 28px;}
  .cta-inner .cta-action{width:100%;min-width:0;}
  body{padding-bottom:78px;}
  .float-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;transform:translateY(110%);
  }
  .float-bar.is-visible{transform:translateY(0);}
  .float-bar .float-text{font-size:14px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 16px;}
  .section{padding:60px 0;}
  .section-tight{padding:48px 0;}
  .article-hero{padding:38px 0 42px;}
  .article-main{padding:40px 0 8px;}
  .article-panel{padding:26px 18px;border-radius:18px;}
  .article-body{font-size:16px;}
  .article-body table{font-size:13.5px;}
  .article-body th,.article-body td{padding:9px 10px;}
  .related-section{padding:52px 0 8px;}
  .faq-section{padding:56px 0 8px;}
  .related-body{padding:20px;}
  .cta-band{padding:52px 0;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text strong{font-size:15.5px;}
  .brand-mark{width:40px;height:40px;border-radius:12px;font-size:13px;}
  .article-title{font-size:24px;}
  .article-meta{font-size:13px;gap:10px 14px;}
  .btn{padding:13px 22px;font-size:15px;}
  .related-body h3{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E5A4F;
  --c-primary-d:#0A4340;
  --c-primary-l:#4FA894;
  --c-primary-soft:rgba(14,90,79,.08);
  --c-accent:#E0A038;
  --c-accent-d:#C0761A;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2EF;
  --c-ink:#16241F;
  --c-ink-2:#5B6B65;
  --c-line:#DCE3DE;
  --grad-brand:linear-gradient(135deg,#0E5A4F 0%,#2C8A72 52%,#59B79B 100%);
  --grad-soft:linear-gradient(135deg,#EDF2EF 0%,#F6F4EE 48%,#FBF3E2 100%);
  --sh-1:0 1px 2px rgba(16,42,36,.04),0 6px 18px -8px rgba(16,42,36,.10);
  --sh-2:0 14px 34px -14px rgba(14,90,79,.24);
  --r-xl:22px;
  --r-lg:16px;
  --r-md:14px;
  --r-pill:999px;
  --ok:#2F7D5C;
  --warn:#C0761A;
  --err:#B3402E;
  --header-h:76px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary-d);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:-.005em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;margin-top:12px;}
.section-head h2::after{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--c-accent);margin-top:16px;}
.section-head p{margin-top:14px;color:var(--c-ink-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.eyebrow.accent{background:rgba(224,160,56,.16);color:var(--c-accent-d);}

/* 顶部导航 */
.top-line{height:3px;background:var(--grad-brand);}
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:var(--header-h);
  transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-size:15px;font-weight:800;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;}
.brand-text small{font-size:11px;color:var(--c-ink-2);letter-spacing:.14em;text-transform:uppercase;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-ink-2);font-weight:500;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.header-phone{font-size:14px;color:var(--c-ink-2);font-weight:600;letter-spacing:.02em;}
.header-phone:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-primary);
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{background:var(--c-primary-soft);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  min-height:48px;cursor:pointer;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-d);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:#F3F8F6;color:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-sm{padding:10px 20px;font-size:14px;min-height:44px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* 分类 Hero */
.cat-hero{
  position:relative;padding:76px 0 68px;
  background-image:
    linear-gradient(135deg,rgba(246,244,238,.96) 0%,rgba(237,242,239,.93) 46%,rgba(224,160,56,.14) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.cat-hero-inner{max-width:860px;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--c-ink-2);margin-bottom:20px;}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{opacity:.6;}
.breadcrumb .current{color:var(--c-ink-2);}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.01em;
  margin:18px 0 0;
}
.cat-hero h1 em{font-style:normal;color:var(--c-primary);}
.cat-hero-lead{margin-top:20px;font-size:17px;color:var(--c-ink-2);max-width:720px;}
.anchor-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-primary);
  min-height:44px;
}
.anchor-nav a:hover{background:#fff;border-color:rgba(14,90,79,.35);box-shadow:var(--sh-1);}
.anchor-nav a i{font-size:12px;color:var(--c-accent-d);}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-note{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--c-ink-2);}
.hero-note span{display:inline-flex;align-items:center;gap:8px;}
.hero-note span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary-l);}

/* 清单式功能条目 */
.list-block{background:var(--c-surface-2);border-radius:var(--r-xl);padding:28px;border:1px solid var(--c-line);}
.feature-row{
  display:grid;grid-template-columns:300px 1fr;gap:32px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;margin-bottom:20px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.feature-row:last-child{margin-bottom:0;}
.feature-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.3);}
.feature-figure{position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;background:var(--c-surface-2);}
.feature-figure img{width:100%;height:100%;object-fit:cover;}
.feature-num{
  position:absolute;top:10px;left:10px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--c-accent-d);
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.feature-body h3{font-size:21px;line-height:1.4;font-weight:650;}
.feature-body h3 span{color:var(--c-primary-l);font-variant-numeric:tabular-nums;margin-right:8px;}
.feature-body p{margin-top:12px;color:var(--c-ink-2);font-size:16px;}
.point-list{margin-top:16px;display:grid;gap:10px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink);}
.point-list li i{color:var(--c-primary);margin-top:6px;font-size:13px;}
.feature-link{margin-top:16px;}

/* 参数表 */
.table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-lg);background:var(--c-surface);box-shadow:var(--sh-1);}
table.spec{width:100%;border-collapse:collapse;min-width:620px;}
table.spec thead th{
  background:var(--c-surface-2);color:var(--c-primary);
  font-size:15px;font-weight:700;text-align:left;
  padding:16px 20px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
table.spec tbody td{
  padding:16px 20px;font-size:15px;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);vertical-align:top;
}
table.spec tbody tr:nth-child(even){background:rgba(237,242,239,.5);}
table.spec tbody tr:last-child td{border-bottom:none;}
table.spec td:first-child{font-weight:650;color:var(--c-primary-d);white-space:nowrap;}
.table-tips{margin-top:16px;font-size:14px;color:var(--c-ink-2);display:flex;gap:10px;align-items:flex-start;}
.table-tips i{color:var(--c-accent-d);margin-top:5px;}

/* 评价 */
.quote-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--sh-1);height:100%;
  transition:transform .18s ease,box-shadow .18s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-mark{font-size:30px;color:var(--c-primary-l);line-height:1;}
.quote-card p{margin-top:14px;font-size:16px;color:var(--c-ink);line-height:1.85;}
.quote-meta{margin-top:20px;display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px dashed var(--c-line);}
.quote-avatar{
  width:44px;height:44px;border-radius:50%;
  background:var(--grad-brand);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:800;
}
.quote-meta strong{display:block;font-size:15px;font-weight:700;}
.quote-meta small{display:block;font-size:13px;color:var(--c-ink-2);}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;min-height:64px;
  background:transparent;border:none;text-align:left;
  font-size:17px;font-weight:650;color:var(--c-ink);
}
.faq-q:hover{color:var(--c-primary);}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--c-primary);color:var(--c-primary);
  display:grid;place-items:center;font-size:12px;
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item.is-open .faq-ico{background:var(--c-primary);color:#fff;transform:rotate(180deg);}
.faq-a{display:none;background:var(--c-surface-2);padding:18px 24px 22px;border-top:1px solid var(--c-line);}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{font-size:16px;color:var(--c-ink-2);}

/* 底部 CTA */
.cta-band{
  border-radius:var(--r-xl);background:var(--grad-brand);color:#fff;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.3;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.88);font-size:16px;max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;flex:0 0 auto;}
.cta-actions .btn{min-width:180px;}
.cta-actions small{color:rgba(255,255,255,.8);font-size:13px;}

/* 页脚 */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-line);margin-top:96px;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;}
.footer-brand p{margin-top:18px;font-size:15px;color:var(--c-ink-2);max-width:340px;}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:18px;}
.footer-links{display:grid;gap:12px;}
.footer-links a{color:var(--c-ink-2);font-size:15px;}
.footer-links a:hover{color:var(--c-primary);}
.contact-list{display:grid;gap:12px;font-size:15px;color:var(--c-ink-2);}
.contact-list strong{color:var(--c-ink);font-variant-numeric:tabular-nums;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-ink-2);
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,36,31,.45);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100dvh;width:84vw;max-width:360px;
  background:var(--c-surface);z-index:90;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;
  box-shadow:-14px 0 40px -20px rgba(16,42,36,.45);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;color:var(--c-primary);font-size:17px;}
.drawer-nav{padding:12px 12px 0;display:grid;overflow-y:auto;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  font-size:17px;color:var(--c-ink);font-weight:500;
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-primary-soft);}
.drawer-nav a i{font-size:13px;color:var(--c-ink-2);}
.drawer-foot{padding:18px 20px;border-top:1px solid var(--c-line);display:grid;gap:10px;}
.drawer-foot small{font-size:13px;color:var(--c-ink-2);text-align:center;}

/* 底部固定转化条 */
.float-bar{
  position:fixed;right:24px;bottom:24px;z-index:60;
  display:flex;align-items:center;gap:14px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:8px 8px 8px 20px;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.float-bar.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-phone{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:650;color:var(--c-primary);}
.float-phone i{color:var(--c-accent-d);}
body.has-floatbar{padding-bottom:96px;}

@media (max-width:1023px){
  .nav-main,.header-phone{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .cat-hero{padding:56px 0 48px;}
  .feature-row{grid-template-columns:1fr;gap:20px;}
  .feature-figure{aspect-ratio:16/10;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:none;border-right:none;border-bottom:none;
    padding:10px 16px;justify-content:space-between;transform:translateY(100%);
  }
  .float-bar.is-visible{transform:translateY(0);}
  body.has-floatbar{padding-bottom:88px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  body{font-size:16px;line-height:1.8;}
  .section{padding:56px 0;}
  .list-block{padding:16px;border-radius:var(--r-lg);}
  .feature-row{padding:18px;}
  .feature-body h3{font-size:19px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:32px 22px;}
  .faq-q{padding:18px;font-size:16px;}
  .faq-a{padding:16px 18px 20px;}
  .anchor-nav a{font-size:13px;padding:9px 14px;}
  .site-footer{margin-top:64px;padding-top:56px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E5A4F;
  --c-primary-dark:#0A4340;
  --c-primary-light:#4FA894;
  --c-accent:#E0A038;
  --c-accent-dark:#C0761A;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2EF;
  --c-ink:#16241F;
  --c-ink-2:#5B6B65;
  --c-line:#DCE3DE;
  --c-success:#2F7D5C;
  --c-warn:#C0761A;
  --c-error:#B3402E;
  --grad-brand:linear-gradient(135deg,#0E5A4F 0%,#2C8A72 52%,#59B79B 100%);
  --sh-1:0 1px 2px rgba(16,42,36,.04), 0 6px 18px -8px rgba(16,42,36,.10);
  --sh-2:0 14px 34px -14px rgba(14,90,79,.24);
  --r-lg:22px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;transition:color .18s ease-out,background-color .18s ease-out;}
a:hover{color:var(--c-primary-dark);}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4,h5,h6{margin:0;font-family:inherit;font-weight:700;color:var(--c-ink);line-height:1.3;letter-spacing:-.005em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
summary{list-style:none;}
summary::-webkit-details-marker{display:none;}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--c-primary);padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow .22s ease-out,background-color .22s ease-out;}
.site-header::before{content:"";display:block;height:3px;background:var(--grad-brand);}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:73px;transition:height .22s ease-out;}
.site-header.is-scrolled .header-inner{height:61px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;letter-spacing:.04em;font-variant-numeric:tabular-nums;box-shadow:var(--sh-1);}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:0;}
.brand-text small{font-size:10.5px;color:var(--c-ink-2);letter-spacing:.16em;text-transform:uppercase;}
.nav-main{display:flex;align-items:center;justify-content:center;gap:4px;flex:1 1 auto;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--c-ink-2);}
.nav-link:hover{color:var(--c-primary);background:rgba(79,168,148,.12);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;background:rgba(79,168,148,.10);}
.nav-link.is-active::after{content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);width:22px;height:2px;border-radius:2px;background:var(--c-primary);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header-tel{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--c-ink-2);}
.header-tel:hover{color:var(--c-primary);}
.header-tel i{font-size:13px;color:var(--c-accent-dark);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:600;border:1.5px solid transparent;text-align:center;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;}
.btn-primary{background:var(--c-primary);color:#fff;padding:14px 28px;font-size:16px;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;padding:14px 28px;font-size:16px;}
.btn-ghost:hover{background:rgba(79,168,148,.14);color:var(--c-primary-dark);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--c-primary-dark);padding:14px 28px;font-size:16px;}
.btn-white:hover{background:#F1F7F4;color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 14px 30px -16px rgba(4,30,26,.55);}
.btn-sm{padding:10px 20px;font-size:14.5px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.link-arrow i{font-size:12px;transition:transform .18s ease-out;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-primary-dark);}
.page-hero .hero-bg{position:absolute;inset:0;background-image:linear-gradient(135deg,rgba(10,67,64,.78) 0%,rgba(14,90,79,.70) 45%,rgba(44,138,114,.62) 100%),url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;background-repeat:no-repeat;}
.hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:88px;}
.hero-copy{max-width:880px;margin:0 auto;text-align:center;}
.hero-crumb{display:flex;justify-content:center;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.hero-crumb a{color:rgba(255,255,255,.72);}
.hero-crumb a:hover{color:#fff;}
.hero-crumb span.sep{opacity:.5;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);color:#EAF6F1;font-size:13.5px;font-weight:600;letter-spacing:.06em;}
.hero-eyebrow i{color:var(--c-accent);font-size:12px;}
.page-hero h1{margin:22px 0 18px;font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.01em;color:#fff;}
.hero-sub{color:rgba(255,255,255,.90);font-size:17px;line-height:1.85;max-width:780px;margin:0 auto;}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:34px;}
.page-hero .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff;}
.hero-points{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 28px;margin-top:36px;color:rgba(255,255,255,.85);font-size:14.5px;}
.hero-points li{display:inline-flex;align-items:center;gap:9px;}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:0 0 auto;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section--alt{background:var(--c-surface-2);}
.section--tight{padding-top:56px;}
.section--cta{padding-top:0;padding-bottom:92px;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-kicker{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-accent-dark);margin-bottom:12px;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;}
.section-head h2::after{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--c-accent);margin-top:16px;}
.section-desc{margin-top:16px;color:var(--c-ink-2);font-size:16px;line-height:1.85;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:80px;}
.timeline::before{content:"";position:absolute;left:28px;top:18px;bottom:18px;width:2px;border-radius:2px;background:rgba(14,90,79,.20);}
.timeline-item{position:relative;padding-bottom:24px;}
.timeline-item:last-child{padding-bottom:0;}
.tl-badge{position:absolute;left:-80px;top:2px;width:56px;height:56px;border-radius:50%;background:var(--c-accent);color:#16241F;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;border:4px solid var(--c-bg);box-shadow:0 10px 22px -14px rgba(192,118,26,.85);}
.tl-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.30);}
.tl-card h3{font-size:21px;font-weight:650;line-height:1.4;margin-bottom:10px;}
.tl-card p{color:var(--c-ink-2);font-size:15.5px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag-pill{display:inline-flex;align-items:center;padding:5px 13px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:rgba(79,168,148,.14);color:var(--c-primary);}
.tag-pill--accent{background:rgba(224,160,56,.20);color:var(--c-accent-dark);}

/* ---------- scene cards ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.scene-card{display:flex;gap:20px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(14,90,79,.30);}
.scene-media{flex:0 0 108px;width:108px;}
.scene-media img{width:108px;height:108px;object-fit:cover;border-radius:var(--r-md);}
.scene-body{min-width:0;}
.scene-body h3{font-size:19px;font-weight:650;line-height:1.4;margin:10px 0 8px;}
.scene-body p{font-size:14.8px;color:var(--c-ink-2);line-height:1.8;}
.scene-body .link-arrow{margin-top:12px;}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 22px;text-align:center;box-shadow:var(--sh-1);transition:transform .18s ease-out,box-shadow .18s ease-out;}
.metric:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.metric .num{display:inline-block;font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.metric .unit{font-size:15px;font-weight:700;color:var(--c-accent-dark);margin-left:3px;}
.metric .label{margin-top:12px;font-size:14px;color:var(--c-ink-2);line-height:1.7;}
.quote-card{position:relative;margin-top:28px;background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-primary);border-radius:var(--r-md);padding:26px 30px;box-shadow:var(--sh-1);}
.quote-card::before{content:"\201C";position:absolute;top:6px;right:24px;font-size:64px;line-height:1;color:rgba(79,168,148,.22);font-family:Georgia,serif;}
.quote-card p{font-size:16px;color:var(--c-ink);max-width:820px;}
.quote-card .quote-from{margin-top:14px;font-size:13.5px;color:var(--c-ink-2);}

/* ---------- faq ---------- */
.faq-list{max-width:880px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.faq-item:hover{border-color:rgba(14,90,79,.30);}
.faq-item[open]{box-shadow:var(--sh-1);}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:18px 22px;font-size:16.5px;font-weight:650;color:var(--c-ink);cursor:pointer;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-icon{position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:rgba(79,168,148,.16);border:1px solid rgba(14,90,79,.18);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;transform:translate(-50%,-50%);transition:transform .22s ease-out,opacity .22s ease-out;}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-answer{padding:18px 22px 20px;background:var(--c-surface-2);border-top:1px solid var(--c-line);color:var(--c-ink-2);font-size:15.5px;line-height:1.8;}

/* ---------- cta band ---------- */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:36px;background:var(--grad-brand);border-radius:var(--r-lg);padding:52px 48px;box-shadow:var(--sh-2);}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;}
.cta-band p{color:rgba(255,255,255,.88);margin-top:14px;font-size:15.5px;max-width:640px;}
.cta-band .btn-white{flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-line);padding:64px 0 92px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:34px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--c-ink);}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14.5px;color:var(--c-ink-2);}
.footer-links a:hover{color:var(--c-primary);}
.contact-list li{font-size:14.5px;color:var(--c-ink-2);margin-bottom:10px;line-height:1.7;}
.contact-list li strong{color:var(--c-ink);font-weight:700;font-variant-numeric:tabular-nums;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-ink-2);}

/* ---------- float bar ---------- */
.float-bar{position:fixed;right:24px;bottom:24px;z-index:75;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:8px 8px 8px 20px;box-shadow:var(--sh-2);opacity:0;transform:translateY(18px);pointer-events:none;transition:opacity .25s ease-out,transform .25s ease-out;}
.float-bar.is-visible{opacity:1;transform:none;pointer-events:auto;}
.float-tel{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--c-ink);}
.float-tel i{color:var(--c-accent-dark);font-size:13px;}

/* ---------- drawer ---------- */
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer-mask{position:fixed;inset:0;background:rgba(16,36,31,.5);z-index:90;opacity:0;pointer-events:none;transition:opacity .25s ease-out;}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:100;display:flex;flex-direction:column;transform:translateX(102%);visibility:hidden;box-shadow:-20px 0 50px -22px rgba(16,42,36,.45);transition:transform .28s ease-out,visibility .28s;}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line);}
.drawer-head .brand-text strong{font-size:16px;}
.drawer-close{width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;color:var(--c-ink);display:inline-flex;align-items:center;justify-content:center;}
.drawer-close:hover{color:var(--c-primary);border-color:rgba(14,90,79,.3);}
.drawer-nav{flex:1 1 auto;overflow-y:auto;padding:12px 10px;}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:12px;font-size:17px;font-weight:500;color:var(--c-ink);}
.drawer-nav a:hover{background:rgba(79,168,148,.12);color:var(--c-primary);}
.drawer-nav a.is-active{background:rgba(79,168,148,.12);color:var(--c-primary);font-weight:700;}
.drawer-nav a i{font-size:13px;color:var(--c-ink-2);}
.drawer-foot{padding:16px 20px 28px;border-top:1px solid var(--c-line);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-main{display:none;}
  .header-tel{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .section{padding:64px 0;}
  .section--cta{padding-bottom:72px;}
  .hero-inner{padding-top:48px;padding-bottom:64px;}
  .card-grid-2{grid-template-columns:1fr;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;}
  .cta-band .btn-white{width:100%;}
  .site-footer{padding-bottom:104px;}
  .float-bar{left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;justify-content:space-between;padding:10px 16px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .header-inner{height:66px;gap:14px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text small{display:none;}
  .brand-mark{width:34px;height:34px;font-size:13px;}
  .hero-actions .btn{width:100%;}
  .timeline{padding-left:56px;}
  .timeline::before{left:19px;}
  .tl-badge{left:-56px;width:40px;height:40px;font-size:15px;border-width:3px;}
  .tl-card{padding:22px 20px;}
  .scene-card{flex-direction:column;}
  .scene-media{flex:none;width:100%;}
  .scene-media img{width:100%;height:172px;}
  .metrics{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .quote-card{padding:22px 20px;}
  .quote-card::before{display:none;}
}