/* roulang page: index */
:root{
  --bs-body-bg:#F5F6F3;
  --bs-body-color:#2B312F;
  --bs-primary:#00C08B;
  --bs-link-color:#2B312F;
  --bs-link-hover-color:#0E1211;
  --bs-border-radius:14px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --ink:#0E1211;
  --green:#00C08B;
  --green-soft:#E4F7F0;
  --orange:#FF6A2B;
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --soft:#F0F2EE;
  --line:#E3E6E1;
  --text:#2B312F;
  --muted:#5B6360;
  --muted-dark:#9AA3A0;
  --text-dark:#EDEFEA;
  --r-card:14px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(14,18,17,.04);
  --sh2:0 12px 32px rgba(14,18,17,.08);
  --sec:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--text);text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}
.site-container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media (max-width:1399px) and (min-width:1200px){.site-container{max-width:1140px}}
@media (max-width:767px){.site-container{padding:0 16px}}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;box-shadow:0 0 0 rgba(14,18,17,0)}
.site-header.scrolled{box-shadow:0 2px 14px rgba(14,18,17,.06)}
.topbar{background:var(--ink);height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:36px}
.topbar-domain{font-size:12px;color:var(--muted-dark);letter-spacing:.02em;font-variant-numeric:tabular-nums;white-space:nowrap}
.topbar-note{font-size:12px;color:#C8CFCB;flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-actions a{font-size:12px;color:#C8CFCB;transition:color .16s}
.topbar-actions a:hover{color:var(--green)}
.topbar-cta{color:#fff !important;border-bottom:1px solid var(--green);padding-bottom:1px}

/* ---------- 主导航 ---------- */
.mainnav{background:#fff;border-bottom:1px solid var(--line)}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .24s ease}
.site-header.scrolled .mainnav-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand svg{display:block}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.06em;line-height:1}
.nav-links{display:flex;align-items:center;gap:32px}
.mainnav-link{position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;transition:color .2s}
.mainnav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--green);transition:width .24s ease}
.mainnav-link:hover{color:var(--ink)}
.mainnav-link:hover::after{width:100%}
.mainnav-link.active{color:var(--ink);font-weight:600}
.mainnav-link.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:12px}
.btn-brand-sm{height:40px;padding:0 20px;font-size:14px}
.toggler{width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;display:none;align-items:center;justify-content:center;gap:4px;flex-direction:column}
.toggler span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.offcanvas{background:#fff}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-body{padding:12px 20px 24px;display:flex;flex-direction:column}
.drawer-link{font-size:20px;font-weight:600;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--green)}
.drawer-cta{margin-top:auto;padding-top:24px}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.text-link{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--r-btn);transition:background .18s,color .18s,border-color .18s,transform .18s;cursor:pointer}
.btn-brand{height:48px;padding:0 28px;background:var(--ink);color:#fff;border:1px solid var(--ink);font-size:15px}
.btn-brand:hover{background:var(--green);border-color:var(--green);color:var(--ink);transform:translateY(-1px)}
.btn-ghost{height:48px;padding:0 26px;background:transparent;color:var(--ink);border:1px solid var(--ink);font-size:15px}
.btn-ghost:hover{background:var(--ink);color:#fff}
.text-link{position:relative;background:none;border:0;padding:2px 0;color:var(--ink);font-size:15px}
.text-link svg{transition:transform .18s}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--green);transition:width .24s}
.text-link:hover::after{width:100%}
.text-link:hover svg{transform:translateX(4px)}
.text-link-light{color:var(--text-dark)}
.text-link-light:hover{color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:72px 0}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-variant-numeric:tabular-nums;margin-bottom:14px}
.h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.2;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.lede{color:var(--muted);font-size:1rem;max-width:40em}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.badge-cat{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--green-soft);color:#046B4E;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-hot{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--orange);color:#fff;font-size:12px;font-weight:600}
.meta-time{font-size:12px;color:var(--muted);display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{padding:84px 0 64px;position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(2.1rem,5vw,4rem);line-height:1.08;font-weight:800;letter-spacing:-.02em}
.hl{position:relative;display:inline-block}
.hl::after{content:"";position:absolute;left:0;right:0;bottom:.04em;height:.16em;background:var(--green);opacity:.45;border-radius:2px;z-index:-1}
.hero-sub{margin-top:24px;font-size:18px;color:var(--muted);max-width:32em;line-height:1.7}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{margin-top:44px;display:flex;align-items:stretch;gap:0}
.hero-stat{padding:0 26px;border-left:1px solid var(--line)}
.hero-stat:first-child{padding-left:0;border-left:0}
.hero-stat b{display:block;font-size:32px;font-weight:800;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
.hero-stat span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line)}
.hero-visual::after{
  content:"";position:absolute;right:-14px;bottom:-14px;width:112px;height:112px;
  background-image:linear-gradient(rgba(14,18,17,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(14,18,17,.08) 1px,transparent 1px);
  background-size:14px 14px;border-radius:4px;pointer-events:none;
}
.hero-arc{position:absolute;left:-26px;top:-22px;pointer-events:none;opacity:.9}

/* ---------- 数据信任条 ---------- */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:36px 0}
.trust-item{padding:0 28px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-item b{display:block;font-size:34px;font-weight:800;color:var(--green);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.trust-item span{font-size:13px;color:var(--muted)}

/* ---------- 功能分组 ---------- */
.feature-wrap{display:grid;grid-template-columns:3fr 9fr;gap:56px;align-items:start}
.feature-side{position:sticky;top:120px}
.feature-side h2{margin-bottom:16px}
.feature-row{display:grid;grid-template-columns:64px 1fr 32px;gap:20px;align-items:center;padding:26px 18px;border-top:1px solid var(--line);transition:background .2s}
.feature-row:last-child{border-bottom:1px solid var(--line)}
.feature-row:hover{background:var(--soft)}
.feature-num{font-size:32px;font-weight:700;color:var(--green);line-height:1;font-variant-numeric:tabular-nums}
.feature-row h3{font-size:1.15rem;font-weight:600;margin-bottom:6px;display:inline-block;position:relative}
.feature-row h3::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--green);transition:width .24s}
.feature-row:hover h3::after{width:100%}
.feature-row p{font-size:14px;color:var(--muted)}
.feature-arrow{color:var(--muted);transition:transform .2s,color .2s}
.feature-row:hover .feature-arrow{transform:translateX(4px);color:var(--green)}
.feature-hero{background:var(--soft);border-radius:var(--r-card);padding:20px;display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:center;border:1px solid var(--line);margin-bottom:8px}
.feature-hero img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px}
.feature-hero h3{font-size:1.25rem;margin-bottom:10px}
.feature-hero p{font-size:14px;color:var(--muted);margin-bottom:14px}

/* ---------- 使用场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.scene:nth-child(even) .scene-media{order:-1}
.scene h3{font-size:1.5rem;margin:10px 0 14px}
.scene p{color:var(--muted);margin-bottom:18px;max-width:38em}
.scene-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text);padding:6px 0}
.scene-list svg{flex-shrink:0;margin-top:7px}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line)}

/* ---------- 案例 ---------- */
.case-main{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:44px;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.case-quote{font-size:24px;font-weight:600;line-height:1.5;color:var(--ink)}
.case-sign{margin-top:22px;font-size:14px;color:var(--muted)}
.case-sign b{color:var(--ink);font-weight:600}
.case-nums{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.case-num b{display:block;font-size:40px;font-weight:800;color:var(--orange);line-height:1.05;font-variant-numeric:tabular-nums}
.case-num span{font-size:12px;color:var(--muted)}
.case-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.case-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh1);transition:transform .2s,border-color .2s,box-shadow .2s}
.case-card:hover{transform:translateY(-2px);border-color:#CFD4CF;box-shadow:var(--sh2)}
.case-card p{font-size:15px;color:var(--ink);font-weight:600;margin:14px 0 18px;line-height:1.6}

/* ---------- 价格 ---------- */
.price-scroll{overflow-x:auto;padding-bottom:8px}
.price-wrap{min-width:720px}
.price-row{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;align-items:stretch;border-bottom:1px solid var(--line);transition:background .18s}
.price-row:hover{background:var(--soft)}
.price-row-head{border-bottom:1px solid var(--line);align-items:flex-end}
.price-cell{padding:18px 20px;font-size:14px;color:var(--text)}
.price-cell-name{color:var(--muted)}
.price-head{font-size:16px;font-weight:600;color:var(--ink)}
.price-head small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:4px}
.price-featured{background:var(--green-soft);border-left:1px solid var(--green);border-right:1px solid var(--green);position:relative}
.price-row-head .price-featured{padding-top:30px}
.price-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%)}
.price-yes{color:var(--green);font-weight:700}
.price-no{color:#A9B0AC}
.price-actions{padding:26px 0 0;display:flex;justify-content:flex-end;gap:14px;flex-wrap:wrap}

/* ---------- 资讯 ---------- */
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .2s,border-color .2s,box-shadow .2s;height:100%}
.news-card:hover{transform:translateY(-2px);border-color:#CFD4CF;box-shadow:var(--sh2)}
.news-media{display:block;overflow:hidden}
.news-media img{width:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-media img{transform:scale(1.04)}
.ratio-16-9{aspect-ratio:16/9}
.ratio-4-3{aspect-ratio:4/3}
.news-media img{height:100%}
.news-body{padding:24px}
.news-title{font-size:1.15rem;line-height:1.5;margin:12px 0 10px;font-weight:600}
.news-title a:hover{color:var(--green)}
.news-summary{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.news-side{display:flex;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:16px;box-shadow:var(--sh1);transition:transform .2s,border-color .2s;height:100%}
.news-side:hover{transform:translateY(-2px);border-color:#CFD4CF}
.news-side-media{width:132px;flex-shrink:0;border-radius:10px;overflow:hidden}
.news-side-media img{width:100%;height:100%;object-fit:cover}
.news-side h3{font-size:15px;line-height:1.5;margin:8px 0;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-side h3 a:hover{color:var(--green)}
.empty-box{border:1px dashed var(--line);border-radius:var(--r-card);height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--muted);font-size:14px;background:#fff}

/* ---------- 最终 CTA ---------- */
.cta-band{background:var(--ink);color:var(--text-dark);padding:80px 0}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.25}
.cta-band p{color:var(--muted-dark);margin-top:16px;max-width:34em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.btn-green{background:var(--green);border-color:var(--green);color:var(--ink)}
.btn-green:hover{background:#fff;border-color:#fff;color:var(--ink)}
.btn-outline-light2{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-outline-light2:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--muted-dark);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand span{font-size:16px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted-dark);max-width:30em}
.socials{display:flex;gap:12px;margin-top:20px}
.socials a{width:36px;height:36px;border:1px solid rgba(255,255,255,.16);border-radius:10px;display:flex;align-items:center;justify-content:center;transition:border-color .16s,background .16s}
.socials a:hover{border-color:var(--green);background:rgba(0,192,139,.12)}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-list li{margin-bottom:11px}
.footer-list a{font-size:14px;color:var(--muted-dark);transition:color .16s}
.footer-list a:hover{color:var(--green)}
.footer-contact li{font-size:14px;margin-bottom:11px;color:var(--muted-dark)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted-dark)}
.footer-bottom a{color:var(--muted-dark)}
.footer-bottom a:hover{color:var(--green)}

/* ---------- 动效 ---------- */
body.has-anim .reveal{opacity:0;transform:translateY(16px)}
body.has-anim .reveal.is-in{opacity:1;transform:none;transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1)}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  body.has-anim .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:80px}
  .feature-wrap{gap:36px}
}
@media (max-width:991px){
  :root{--sec:72px}
  .nav-links{display:none}
  .toggler{display:flex}
  .hero{padding:56px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-visual img{aspect-ratio:16/10}
  .feature-wrap{grid-template-columns:1fr}
  .feature-side{position:static}
  .feature-hero{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .scene:nth-child(even) .scene-media{order:0}
  .case-main{grid-template-columns:1fr;padding:30px;gap:28px}
  .case-cards{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:8px}
  .case-card{min-width:78vw;scroll-snap-align:start}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sec:56px}
  .topbar-note{display:none}
  .topbar-domain{display:none}
  .topbar-actions a:first-child{display:none}
  .news-side{flex-direction:column}
  .news-side-media{width:100%;aspect-ratio:16/9}
}
@media (max-width:575px){
  h1,.hero h1{font-size:2.1rem}
  .trust-grid{grid-template-columns:1fr 1fr;gap:24px 0}
  .trust-item{padding:0 18px}
  .trust-item:nth-child(odd){border-left:0;padding-left:0}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  .hero-stat{padding:0;border-left:0}
  .hero-stat b{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .case-num b{font-size:32px}
}

/* roulang page: article */
:root{
  --ink:#0E1211;
  --ink-soft:#2B312F;
  --muted:#5B6360;
  --muted-dark:#9AA3A0;
  --line:#E3E6E1;
  --line-strong:#CFD4CF;
  --bg:#F5F6F3;
  --surface:#FFFFFF;
  --surface-2:#F0F2EE;
  --green:#00C08B;
  --green-deep:#00734F;
  --green-soft:#E4F7F0;
  --orange:#FF6A2B;
  --dark-text:#EDEFEA;
  --radius-card:14px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-rest:0 1px 2px rgba(14,18,17,.04);
  --shadow-hover:0 12px 32px rgba(14,18,17,.08);
  --container:1240px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

:root,
[data-bs-theme="light"]{
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--ink-soft);
  --bs-primary:#0E1211;
  --bs-link-color:var(--ink-soft);
  --bs-link-hover-color:var(--ink);
  --bs-border-radius:var(--radius-btn);
  --bs-border-color:var(--line);
  --bs-font-sans-serif:var(--font-sans);
  --bs-body-font-family:var(--font-sans);
  --bs-body-line-height:1.8;
  --bs-emphasis-color:var(--ink);
}

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

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink-soft);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
svg{ display:block; }
a{
  color:inherit;
  text-decoration:none;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease,transform .18s ease;
}
button{ font-family:inherit; }
h1,h2,h3,h4{ color:var(--ink); margin:0; }
p{ margin:0 0 16px; }
ul,ol{ margin:0; padding:0; }

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

.site-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1200px) and (max-width:1399px){
  .site-container{ max-width:1140px; }
}
@media (max-width:767px){
  .site-container{ padding:0 16px; }
}

/* ------- 顶部信息条 ------- */
.topbar{
  background:var(--ink);
  color:var(--muted-dark);
  font-size:.75rem;
  height:36px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.topbar-domain{
  letter-spacing:.04em;
  color:#8E9793;
  flex:0 0 auto;
}
.topbar-note{
  flex:1 1 auto;
  min-width:0;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
  color:#B9C0BC;
}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:18px;
  flex:0 0 auto;
}
.topbar-actions a{ color:#D8DEDA; }
.topbar-actions a:hover{ color:var(--green); }
.topbar-cta{
  color:var(--green) !important;
  font-weight:600;
}
.topbar-cta::after{
  content:"→";
  margin-left:6px;
  display:inline-block;
  transition:transform .18s ease;
}
.topbar-cta:hover::after{ transform:translateX(3px); }

@media (max-width:767px){
  .topbar-note{ display:none; }
  .topbar-actions a:not(.topbar-cta){ display:none; }
}

/* ------- 主导航 ------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
}
.mainnav{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  height:72px;
  display:flex;
  align-items:center;
  transition:height .24s ease,box-shadow .24s ease;
}
.mainnav.is-scrolled{
  height:60px;
  box-shadow:0 6px 20px rgba(14,18,17,.06);
}
.mainnav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:1rem;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  line-height:1.15;
}
.brand-text small{
  font-size:.5625rem;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--muted);
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  flex:1 1 auto;
  justify-content:center;
}
.mainnav-link{
  position:relative;
  font-size:.9375rem;
  font-weight:500;
  color:var(--ink-soft);
  padding:6px 0;
  white-space:nowrap;
}
.mainnav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:var(--green);
  transition:width .24s ease;
}
.mainnav-link:hover{ color:var(--ink); }
.mainnav-link:hover::after{ width:100%; }
.mainnav-link.active{
  color:var(--ink);
  font-weight:600;
}
.mainnav-link.active::after{ width:100%; }
.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  background:var(--ink);
  color:#fff;
  font-size:.9375rem;
  font-weight:600;
  border:1px solid var(--ink);
  cursor:pointer;
}
.btn-brand:hover{
  background:var(--green);
  border-color:var(--green);
  color:var(--ink);
  transform:translateY(-1px);
}
.btn-brand-sm{
  height:40px;
  padding:0 20px;
  font-size:.875rem;
}
.toggler{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:42px;
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 10px;
  cursor:pointer;
}
.toggler span{
  display:block;
  height:2px;
  background:var(--ink);
  border-radius:2px;
}

/* ------- 移动端抽屉 ------- */
.offcanvas{
  background:var(--surface);
  border:0;
}
.offcanvas.offcanvas-end{
  width:100%;
  max-width:100%;
}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.drawer-head span{
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--muted);
}
.drawer-close{
  border:0;
  background:transparent;
  font-size:1.5rem;
  line-height:1;
  color:var(--ink);
  cursor:pointer;
}
.drawer-body{
  padding:14px 20px 24px;
  overflow-y:auto;
}
.drawer-link{
  display:block;
  font-size:1.25rem;
  font-weight:600;
  color:var(--ink);
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.drawer-link.active{ color:var(--green-deep); }
.drawer-link:hover{ color:var(--green-deep); }
.drawer-foot{
  border-top:1px solid var(--line);
  padding:16px 20px calc(16px + env(safe-area-inset-bottom));
  background:var(--surface);
}
.btn-block{ width:100%; }

@media (max-width:991px){
  .nav-links{ display:none; }
  .toggler{ display:flex; }
  .mainnav{ height:64px; }
}

/* ------- 面包屑 ------- */
.crumb-bar{
  background:var(--surface-2);
  border-bottom:1px solid var(--line);
  min-height:48px;
  display:flex;
  align-items:center;
}
.crumb-inner{
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.crumb-inner::-webkit-scrollbar{ display:none; }
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  color:var(--muted);
  padding:12px 0;
}
.crumbs a:hover{ color:var(--green-deep); }
.crumbs .sep{ color:var(--line-strong); }
.crumbs .current{
  color:var(--ink);
  font-weight:600;
}

/* ------- 文章头 ------- */
.article-head{
  background:var(--bg);
  padding:56px 0 40px;
}
.badge-cat{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:var(--green-soft);
  color:var(--green-deep);
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
}
.article-title{
  font-size:clamp(1.85rem,4vw,2.9rem);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  margin:16px 0 0;
  max-width:22em;
}
.article-lead{
  margin:22px 0 0;
  max-width:40em;
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--muted);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:26px;
  font-size:.8125rem;
  color:var(--muted);
}
.meta-row .dot{
  width:1px;
  height:12px;
  background:var(--line-strong);
}
.meta-row time{ color:var(--muted); }
@media (max-width:575px){
  .article-head{ padding:36px 0 28px; }
  .meta-row{ gap:10px; font-size:.75rem; }
}

/* ------- 封面 ------- */
.cover-figure{
  margin:0 0 8px;
}
.cover-figure img{
  width:100%;
  aspect-ratio:21 / 9;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
}
.cover-figure figcaption{
  margin-top:12px;
  font-size:.8125rem;
  color:var(--muted);
  text-align:center;
}
@media (max-width:767px){
  .cover-figure img{ aspect-ratio:16 / 9; }
}

/* ------- 正文区 ------- */
.article-main{
  padding:56px 0 72px;
}
.toc-aside{ display:block; }
.toc{
  position:sticky;
  top:96px;
}
.toc-title{
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--muted);
  margin:0 0 16px;
  text-transform:uppercase;
}
.toc-list{
  list-style:none;
  margin:0;
  padding:0;
  border-left:2px solid var(--line);
}
.toc-list li{ margin:0; }
.toc-link{
  display:block;
  padding:7px 0 7px 16px;
  margin-left:-2px;
  border-left:2px solid transparent;
  font-size:.875rem;
  line-height:1.5;
  color:var(--muted);
}
.toc-link:hover{ color:var(--ink); }
.toc-link.is-active{
  color:var(--ink);
  font-weight:600;
  border-left-color:var(--green);
}
.toc-mobile{
  display:none;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  padding:16px 18px;
  margin-bottom:24px;
}
.toc-mobile summary{
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.toc-mobile summary::-webkit-details-marker{ display:none; }
.toc-mobile summary::after{
  content:"+";
  float:right;
  color:var(--green-deep);
  font-weight:700;
}
.toc-mobile[open] summary::after{ content:"×"; }
.toc-mobile .toc-list{ margin-top:14px; border-left:2px solid var(--line); }

@media (max-width:991px){
  .toc-aside{ display:none; }
  .toc-mobile{ display:block; }
}

.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:44px 46px 28px;
  box-shadow:var(--shadow-rest);
  max-width:820px;
}
.article-body > *:first-child{ margin-top:0; }
.article-body p{
  max-width:40em;
  margin:0 0 20px;
  line-height:1.85;
}
.article-body h2{
  font-size:clamp(1.375rem,2.2vw,1.85rem);
  font-weight:700;
  line-height:1.32;
  margin:46px 0 18px;
  padding-left:16px;
  border-left:3px solid var(--green);
  scroll-margin-top:96px;
}
.article-body h3{
  font-size:1.125rem;
  font-weight:600;
  line-height:1.45;
  margin:30px 0 12px;
  scroll-margin-top:96px;
}
.article-body h4{
  font-size:1rem;
  font-weight:600;
  margin:24px 0 10px;
}
.article-body ul{
  list-style:none;
  margin:0 0 22px;
  padding:0;
}
.article-body ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  max-width:40em;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--green);
}
.article-body ol{
  list-style:none;
  counter-reset:tjlist;
  margin:0 0 22px;
  padding:0;
}
.article-body ol li{
  position:relative;
  counter-increment:tjlist;
  padding-left:40px;
  margin-bottom:12px;
  max-width:40em;
}
.article-body ol li::before{
  content:counter(tjlist,decimal-leading-zero);
  position:absolute;
  left:0;
  top:.15em;
  width:26px;
  height:26px;
  border-radius:999px;
  background:var(--green-soft);
  color:var(--green-deep);
  font-size:.75rem;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--surface-2);
  border-left:3px solid var(--green);
  font-size:.9375rem;
  font-style:italic;
  color:var(--ink-soft);
}
.article-body blockquote p:last-child{ margin-bottom:0; }
.article-body img{
  width:100%;
  border-radius:10px;
  margin:26px 0 10px;
  border:1px solid var(--line);
}
.article-body figcaption,
.article-body .wp-caption-text{
  font-size:.8125rem;
  color:var(--muted);
  text-align:center;
  margin-bottom:22px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:.9375rem;
}
.article-body th,
.article-body td{
  border:0;
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body thead th{
  background:var(--surface-2);
  font-weight:600;
  color:var(--ink);
}
.article-body code{
  background:var(--surface-2);
  padding:2px 6px;
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:.875em;
}
.article-body pre{
  background:var(--ink);
  color:var(--dark-text);
  padding:18px 20px;
  border-radius:10px;
  overflow-x:auto;
  margin:24px 0;
  font-family:var(--font-mono);
  font-size:.875rem;
  line-height:1.7;
}
.article-body pre code{ background:transparent; padding:0; color:inherit; }
.article-body a{
  color:var(--green-deep);
  border-bottom:1px solid rgba(0,192,139,.45);
}
.article-body a:hover{
  border-bottom-color:var(--green-deep);
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:36px 0;
}

@media (max-width:767px){
  .article-main{ padding:36px 0 48px; }
  .article-body{ padding:26px 20px 12px; }
  .article-body h2{ margin-top:34px; }
}

/* ------- 空态 ------- */
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  background:var(--surface);
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  text-align:center;
  padding:32px;
}
.empty-state svg{ opacity:.55; }
.empty-state p{
  margin:0;
  font-size:1rem;
  color:var(--muted);
}
.empty-state a{
  color:var(--green-deep);
  font-weight:600;
  border-bottom:1px solid rgba(0,192,139,.45);
}
.empty-state a:hover{ border-bottom-color:var(--green-deep); }

/* ------- 标签与分享 ------- */
.article-foot{
  max-width:820px;
  margin-top:28px;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.tag-label{
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--muted);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:var(--surface-2);
  border:1px solid var(--line);
  font-size:.8125rem;
  color:var(--ink-soft);
}
.tag:hover{
  border-color:var(--line-strong);
  color:var(--ink);
}
.share-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:22px;
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.text-btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.875rem;
  font-weight:500;
  color:var(--ink-soft);
  background:none;
  border:0;
  padding:0 0 2px;
  cursor:pointer;
}
.text-btn::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:var(--green);
  transition:width .22s ease;
}
.text-btn:hover{ color:var(--ink); }
.text-btn:hover::after{ width:100%; }
.text-btn svg{ transition:transform .18s ease; }
.text-btn:hover svg{ transform:translateX(4px); }
.share-hint{
  font-size:.8125rem;
  color:var(--green-deep);
}

/* ------- 上下篇 ------- */
.prevnext{
  padding:64px 0 0;
}
.prevnext-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.pn-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 26px;
  box-shadow:var(--shadow-rest);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.pn-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.pn-label{
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--muted);
}
.pn-title{
  margin:10px 0 0;
  font-size:1rem;
  font-weight:600;
  line-height:1.5;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pn-card:hover .pn-title{ color:var(--green-deep); }
@media (max-width:767px){
  .prevnext-grid{ grid-template-columns:1fr; }
}

/* ------- 相关推荐 ------- */
.related{
  padding:72px 0 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.eyebrow{
  font-size:.75rem;
  letter-spacing:.2em;
  color:var(--muted);
  margin:0 0 10px;
  text-transform:uppercase;
}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2rem);
  font-weight:700;
  line-height:1.24;
}
.card-grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-rest);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.post-thumb{
  aspect-ratio:16 / 9;
  overflow:hidden;
  background:var(--surface-2);
}
.post-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.post-card:hover .post-thumb img{ transform:scale(1.04); }
.post-body{
  padding:22px 24px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1 1 auto;
}
.post-cat{
  font-size:.75rem;
  font-weight:600;
  color:var(--green-deep);
}
.post-title{
  font-size:1.0625rem;
  font-weight:600;
  line-height:1.5;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover .post-title{ color:var(--green-deep); }
.post-desc{
  font-size:.875rem;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0;
}
.post-meta{
  margin-top:auto;
  font-size:.75rem;
  color:var(--muted);
}
@media (max-width:991px){
  .card-grid-3{ grid-template-columns:1fr; }
}

/* ------- 返回入口 ------- */
.back-row{
  padding:48px 0 0;
  text-align:center;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink);
}
.back-link svg{ transition:transform .18s ease; }
.back-link:hover{ color:var(--green-deep); }
.back-link:hover svg{ transform:translateX(-4px); }

/* ------- CTA 通栏 ------- */
.cta-band{
  margin-top:80px;
  background:var(--ink);
  color:var(--dark-text);
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-60px;
  width:240px;
  height:240px;
  background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  z-index:1;
}
.cta-band .eyebrow{ color:var(--muted-dark); }
.cta-band h2{
  color:#fff;
  font-size:clamp(1.5rem,2.6vw,2.15rem);
  font-weight:700;
  line-height:1.26;
  max-width:20em;
}
.cta-band p{
  color:#B9C0BC;
  max-width:34em;
  margin:16px 0 0;
  font-size:.9375rem;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex:0 0 auto;
}
.btn-brand-light{
  background:var(--green);
  border-color:var(--green);
  color:var(--ink);
}
.btn-brand-light:hover{
  background:#fff;
  border-color:#fff;
  color:var(--ink);
}
.btn-ghost-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.34);
  color:#EDEFEA;
  font-weight:600;
  font-size:.9375rem;
  background:transparent;
}
.btn-ghost-light:hover{
  background:#fff;
  border-color:#fff;
  color:var(--ink);
}
@media (max-width:991px){
  .cta-inner{ flex-direction:column; align-items:flex-start; }
  .cta-actions{ width:100%; flex-wrap:wrap; }
}
@media (max-width:575px){
  .cta-band{ padding:48px 0; margin-top:56px; }
  .btn-brand,
  .btn-ghost-light{ width:100%; }
}

/* ------- 页脚 ------- */
.site-footer{
  background:var(--ink);
  color:#B9C0BC;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:1rem;
  font-weight:700;
  letter-spacing:-.01em;
}
.footer-desc{
  margin:16px 0 20px;
  font-size:.875rem;
  line-height:1.8;
  color:#9AA3A0;
  max-width:32em;
}
.socials{
  display:flex;
  gap:12px;
}
.socials a{
  width:34px;
  height:34px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:9px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.socials a:hover{
  border-color:var(--green);
  background:rgba(0,192,139,.12);
}
.footer-title{
  color:#fff;
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.08em;
  margin:0 0 18px;
}
.footer-list,
.footer-contact{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-list li{ margin-bottom:12px; }
.footer-list a{
  font-size:.875rem;
  color:#B9C0BC;
}
.footer-list a:hover{ color:var(--green); }
.footer-contact li{
  font-size:.875rem;
  color:#9AA3A0;
  margin-bottom:12px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:.8125rem;
  color:#8E9793;
}
@media (max-width:991px){
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:575px){
  .footer-grid{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}

/* ------- 入场动效 ------- */
.js .reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1);
}
.js .reveal.is-in{
  opacity:1;
  transform:none;
}

/* ------- Bootstrap 覆写 ------- */
.btn{
  border-radius:var(--radius-btn);
  font-weight:600;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-primary{
  --bs-btn-bg:#0E1211;
  --bs-btn-border-color:#0E1211;
  --bs-btn-hover-bg:#00C08B;
  --bs-btn-hover-border-color:#00C08B;
  --bs-btn-hover-color:#0E1211;
  --bs-btn-active-bg:#00C08B;
  --bs-btn-active-border-color:#00C08B;
  --bs-btn-active-color:#0E1211;
  --bs-btn-focus-shadow-rgb:0,192,139;
}
.btn-outline-dark{
  --bs-btn-color:#0E1211;
  --bs-btn-border-color:#0E1211;
  --bs-btn-hover-bg:#0E1211;
  --bs-btn-hover-border-color:#0E1211;
  --bs-btn-hover-color:#fff;
  border-radius:var(--radius-btn);
}
.card{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-rest);
  background:var(--surface);
}
.navbar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  min-height:72px;
}
.navbar-toggler{
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  padding:6px 10px;
}
.navbar-toggler:focus{ box-shadow:none; }
.accordion{
  --bs-accordion-border-color:transparent;
  --bs-accordion-border-radius:0;
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-active-color:var(--ink);
}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-button{
  background:transparent;
  color:var(--ink);
  font-weight:600;
  font-size:1rem;
  padding:22px 0;
  box-shadow:none;
}
.accordion-button::after{
  background-image:none;
  content:"+";
  font-size:1.25rem;
  font-weight:400;
  color:var(--green-deep);
  width:auto;
  height:auto;
  transform:none;
  transition:transform .18s ease;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
}
.accordion-body{
  padding:0 0 22px;
  font-size:.9375rem;
  line-height:1.8;
  color:var(--muted);
}
.badge{
  border-radius:999px;
  font-weight:600;
}
.breadcrumb{
  background:transparent;
  padding:0;
  margin:0;
  font-size:.8125rem;
}
.form-control{
  height:48px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  font-size:.9375rem;
  color:var(--ink-soft);
}
.form-control:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 2px rgba(0,192,139,.9);
}
.dropdown-menu{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);
  padding:8px;
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,
  *::before,
  *::after{
    transition:none !important;
    animation:none !important;
  }
  .js .reveal{
    opacity:1;
    transform:none;
  }
}

/* roulang page: category1 */
:root{
  --ink:#0E1211;
  --ink-2:#171D1B;
  --green:#00C08B;
  --green-soft:#E4F7F0;
  --orange:#FF6A2B;
  --bg:#F5F6F3;
  --card:#FFFFFF;
  --soft:#F0F2EE;
  --line:#E3E6E1;
  --line-strong:#CFD4CF;
  --text:#2B312F;
  --muted:#5B6360;
  --dmuted:#9AA3A0;
  --dtext:#EDEFEA;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,18,17,.04);
  --sh-2:0 12px 32px rgba(14,18,17,.08);
  --maxw:1240px;

  --bs-body-bg:#F5F6F3;
  --bs-body-color:#2B312F;
  --bs-primary:#00C08B;
  --bs-link-color:#2B312F;
  --bs-link-hover-color:#0E1211;
  --bs-border-radius:10px;
  --bs-border-color:#E3E6E1;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:1rem;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%}
img{display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
::selection{background:var(--green);color:#0E1211}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px}

.site-container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--green);
  font-weight:700;
  margin-bottom:14px;
}
.eyebrow-ink{color:var(--ink)}
h1{
  font-size:clamp(2.1rem,5vw,4rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.08;
}
h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
}
h3{
  font-size:1.2rem;
  font-weight:600;
  line-height:1.4;
}
.lead{font-size:1.0625rem;color:var(--muted);max-width:40em}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink);
  color:var(--dmuted);
  font-size:12px;
  line-height:1;
  height:36px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;gap:24px;height:36px}
.topbar-domain{color:var(--dmuted);letter-spacing:.04em;white-space:nowrap}
.topbar-note{
  flex:1;
  text-align:center;
  color:#B7BFBC;
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
}
.topbar-actions{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-actions a{color:#D6DBD8}
.topbar-actions a:hover{color:var(--green)}
.topbar-cta{
  color:var(--ink)!important;
  background:var(--green);
  padding:6px 14px;
  border-radius:var(--r-pill);
  font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.topbar-cta:hover{background:#fff;color:var(--ink)!important}

/* ============ 主导航 ============ */
.site-header{position:relative;z-index:1040}
.mainnav{
  position:sticky;
  top:0;
  z-index:1035;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.mainnav.is-scrolled{box-shadow:0 6px 20px rgba(14,18,17,.06)}
.mainnav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .2s ease;
}
.mainnav.is-scrolled .mainnav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.1;
  color:var(--ink);
}
.brand-text small{
  font-size:9px;
  letter-spacing:.18em;
  color:var(--muted);
  font-weight:600;
  margin-top:3px;
}
.nav-links{display:flex;align-items:center;gap:32px}
.mainnav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:6px 0;
  white-space:nowrap;
}
.mainnav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.mainnav-link:hover::after,.mainnav-link.active::after{transform:scaleX(1)}
.mainnav-link.active{color:var(--ink);font-weight:600}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}

/* 按钮 */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  background:var(--ink);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--ink);
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-brand:hover{background:var(--green);border-color:var(--green);color:var(--ink);transform:translateY(-1px)}
.btn-brand-sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid var(--ink);
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  background:transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  padding-bottom:2px;
  border-bottom:2px solid transparent;
  transition:border-color .18s ease,color .18s ease;
}
.btn-line svg{transition:transform .2s ease}
.btn-line:hover{border-color:var(--green)}
.btn-line:hover svg{transform:translateX(4px)}

.toggler{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.toggler span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* 移动端抽屉 */
.offcanvas.mobile-nav{width:100%;max-width:420px;border:0}
.mobile-nav .offcanvas-header{
  padding:20px 24px;
  border-bottom:1px solid var(--line);
}
.mobile-nav .btn-close{opacity:.6}
.mobile-nav .offcanvas-body{padding:16px 24px 120px;display:flex;flex-direction:column}
.mobile-nav .drawer-link{
  font-size:20px;
  font-weight:600;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.mobile-nav .drawer-link.active{color:var(--green)}
.mobile-nav .drawer-foot{
  position:fixed;
  left:0;right:0;bottom:0;
  background:#fff;
  border-top:1px solid var(--line);
  padding:16px 24px;
  max-width:420px;
}
.mobile-nav .drawer-foot .btn-brand{width:100%}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:var(--soft);
  border-bottom:1px solid var(--line);
  height:48px;
  display:flex;
  align-items:center;
}
.breadcrumb{font-size:13px;color:var(--muted);margin:0;flex-wrap:nowrap;white-space:nowrap;overflow-x:auto}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--green)}
.breadcrumb .sep{color:var(--line-strong);margin:0 8px}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ============ 分类 Hero ============ */
.cat-hero{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:52px 0 56px;
}
.cat-hero-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
  min-height:320px;
}
.cat-hero-lead{
  font-size:1.0625rem;
  color:var(--muted);
  max-width:34em;
  margin-top:20px;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cat-hero-media{position:relative}
.cat-hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
}
.grid-deco{
  position:absolute;
  right:-14px;
  bottom:-14px;
  width:110px;
  height:110px;
  background-image:linear-gradient(rgba(14,18,17,.28) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(14,18,17,.28) 1px,transparent 1px);
  background-size:14px 14px;
  opacity:.35;
  pointer-events:none;
}

/* ============ 分类互链 ============ */
.cat-switch{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.cat-switch-inner{
  display:flex;
  gap:36px;
  overflow-x:auto;
  scrollbar-width:none;
}
.cat-switch-inner::-webkit-scrollbar{display:none}
.cat-switch-inner a{
  position:relative;
  display:block;
  padding:18px 0 16px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  font-weight:500;
}
.cat-switch-inner a:hover{color:var(--ink)}
.cat-switch-inner a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.cat-switch-inner a:hover::after{transform:scaleX(1)}
.cat-switch-inner a.active{color:var(--ink);font-weight:600}
.cat-switch-inner a.active::after{transform:scaleX(1)}

/* ============ 板块标题 ============ */
.sec-head{max-width:46em;margin-bottom:56px}
.sec-head p{color:var(--muted);margin-top:16px}

/* ============ 图文交错 ============ */
.zz-list{display:flex;flex-direction:column;gap:84px}
.zz-item{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.zz-item.reverse .zz-media{order:2}
.zz-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  transition:transform .4s ease;
}
.zz-media{overflow:hidden;border-radius:var(--r-card)}
.zz-item:hover .zz-media img{transform:scale(1.04)}
.zz-body h3{margin:6px 0 14px}
.zz-body p{color:var(--muted)}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.check-list li{
  position:relative;
  padding-left:28px;
  font-size:.9375rem;
  color:var(--text);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:12px;
  height:6px;
  border-left:2px solid var(--green);
  border-bottom:2px solid var(--green);
  transform:rotate(-45deg);
}

/* ============ 选型要点 ============ */
.pick-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pick-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0;
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.pick-item{
  background:#fff;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:34px 32px;
  transition:background .2s ease;
}
.pick-item:hover{background:var(--soft)}
.pick-item span.num{
  display:block;
  font-size:.75rem;
  letter-spacing:.16em;
  color:var(--green);
  font-weight:700;
  margin-bottom:12px;
}
.pick-item h3{font-size:1.0625rem;margin-bottom:10px}
.pick-item p{font-size:.9375rem;color:var(--muted)}

/* ============ FAQ ============ */
.faq-wrap{background:var(--bg)}
.accordion-clean .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-clean .accordion-button{
  background:transparent;
  box-shadow:none;
  padding:24px 48px 24px 56px;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  position:relative;
}
.accordion-clean .accordion-button:not(.collapsed){color:var(--ink);background:transparent}
.accordion-clean .accordion-button::after{display:none}
.accordion-clean .accordion-button .faq-num{
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  font-size:.8125rem;
  font-weight:700;
  color:var(--green);
  letter-spacing:.06em;
}
.accordion-clean .faq-icon{
  position:absolute;
  right:6px;
  top:50%;
  width:18px;
  height:18px;
  margin-top:-9px;
  transition:transform .18s ease;
}
.accordion-clean .faq-icon::before,
.accordion-clean .faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  border-radius:2px;
}
.accordion-clean .faq-icon::before{left:0;top:8px;width:18px;height:2px}
.accordion-clean .faq-icon::after{left:8px;top:0;width:2px;height:18px}
.accordion-clean .accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg)}
.accordion-clean .accordion-body{
  padding:0 48px 28px 56px;
  font-size:.9375rem;
  line-height:1.8;
  color:var(--muted);
}
.accordion-clean .accordion-collapse{transition:height .26s ease}

/* ============ 资讯卡 ============ */
.news-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.news-grid{
  display:grid;
  grid-template-columns:6fr 3fr 3fr;
  gap:24px;
}
.news-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.news-thumb{
  overflow:hidden;
  background:var(--soft);
}
.news-thumb img{width:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-card.big .news-thumb img{aspect-ratio:16/9}
.news-card.small .news-thumb img{aspect-ratio:4/3}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-cat{
  display:inline-block;
  align-self:flex-start;
  background:var(--green-soft);
  color:#12634B;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:var(--r-pill);
}
.news-card h3{font-size:1.0625rem;line-height:1.5}
.news-card.big h3{font-size:1.25rem}
.news-card p{font-size:.9375rem;color:var(--muted)}
.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  color:var(--dmuted);
}
.news-meta svg{flex-shrink:0}

/* ============ CTA ============ */
.cta-band{background:var(--ink);color:var(--dtext);padding:80px 0}
.cta-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.cta-band h2{color:#fff}
.cta-band p{color:var(--dmuted);margin-top:16px;max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.btn-brand-invert{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  background:var(--green);
  color:var(--ink);
  font-weight:600;
  font-size:15px;
  border:1px solid var(--green);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-brand-invert:hover{background:#fff;border-color:#fff;color:var(--ink);transform:translateY(-1px)}
.btn-ghost-invert{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid rgba(237,239,234,.4);
  color:var(--dtext);
  font-weight:600;
  font-size:15px;
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost-invert:hover{background:var(--dtext);border-color:var(--dtext);color:var(--ink);transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--dtext);padding:72px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-desc{color:var(--dmuted);font-size:.875rem;line-height:1.8;margin-top:18px;max-width:26em}
.socials{display:flex;gap:12px;margin-top:22px}
.socials a{
  width:34px;height:34px;
  border:1px solid rgba(237,239,234,.18);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .16s ease,background .16s ease;
}
.socials a:hover{border-color:var(--green);background:rgba(0,192,139,.12)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list li,.footer-contact li{margin-bottom:12px}
.footer-list a,.footer-contact li{color:var(--dmuted);font-size:.875rem}
.footer-list a:hover{color:var(--green)}
.footer-bottom{
  border-top:1px solid rgba(237,239,234,.12);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12px;
  color:var(--dmuted);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .site-container{max-width:1240px}
}
@media (max-width:1399.98px){
  .site-container{max-width:1140px}
}
@media (max-width:1199.98px){
  .nav-links{gap:22px}
  .mainnav-link{font-size:14px}
  .zz-item{gap:44px}
}
@media (max-width:991.98px){
  .nav-links,.nav-right .btn-brand{display:none}
  .toggler{display:flex}
  .section{padding:72px 0}
  .cat-hero-inner{grid-template-columns:1fr;gap:36px}
  .cat-hero-media img{aspect-ratio:16/9}
  .zz-item{grid-template-columns:1fr;gap:24px}
  .zz-item.reverse .zz-media{order:0}
  .news-grid{grid-template-columns:1fr;gap:20px}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767.98px){
  .site-container{padding:0 16px}
  .topbar-note{display:none}
  .topbar-inner{gap:12px;justify-content:space-between}
  .topbar-domain{font-size:11px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:36px}
  .zz-list{gap:56px}
  .pick-grid{grid-template-columns:1fr}
  .pick-item{padding:26px 22px}
  .accordion-clean .accordion-button{padding:20px 40px 20px 44px;font-size:1rem}
  .accordion-clean .accordion-body{padding:0 40px 24px 44px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .news-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575.98px){
  h1{font-size:2.1rem}
  .topbar-actions a:first-child{display:none}
  .cat-hero{padding:36px 0 40px}
  .cat-hero-actions{flex-direction:column;align-items:stretch}
  .cat-hero-actions .btn-brand,.cat-hero-actions .btn-ghost{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions a{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#0E1211;
  --ink-2:#1A211F;
  --accent:#00C08B;
  --accent-soft:#E4F7F0;
  --accent-deep:#0E8A66;
  --heat:#FF6A2B;
  --bg:#F5F6F3;
  --surface:#FFFFFF;
  --soft:#F0F2EE;
  --line:#E3E6E1;
  --line-strong:#CFD4CF;
  --text:#2B312F;
  --muted:#5B6360;
  --muted-dark:#9AA3A0;
  --on-dark:#EDEFEA;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,18,17,.04);
  --shadow-2:0 12px 32px rgba(14,18,17,.08);
  --bs-body-bg:#F5F6F3;
  --bs-body-color:#2B312F;
  --bs-primary:#00C08B;
  --bs-link-color:#2B312F;
  --bs-link-hover-color:#0E1211;
  --bs-border-radius:.625rem;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;background:transparent;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.site-container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.bg-soft{background:var(--soft);}
.bg-white{background:var(--surface);}
.bg-ink{background:var(--ink);color:var(--on-dark);}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow-dark{color:var(--muted-dark);}
.h1{
  font-size:clamp(2.1rem,5vw,4rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.08;
  color:var(--ink);
}
.h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--ink);
}
.h3{font-size:1.2rem;font-weight:600;line-height:1.4;color:var(--ink);}
.lead{font-size:1.05rem;color:var(--muted);max-width:40em;}
.on-ink .h2,.on-ink .h3{color:var(--on-dark);}
.on-ink .lead{color:var(--muted-dark);}
.accent-underline{
  position:relative;
  display:inline-block;
}
.accent-underline::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:.06em;
  height:.28em;
  background:var(--accent);
  opacity:.45;
  z-index:-1;
}
.text-accent{color:var(--accent);}
.text-heat{color:var(--heat);}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink);
  color:var(--muted-dark);
  font-size:12px;
  min-height:36px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:36px;
}
.topbar-domain{letter-spacing:.06em;white-space:nowrap;}
.topbar-note{
  flex:1;
  text-align:center;
  color:#B7BFBC;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.topbar-actions{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-actions a{color:#D5DBD8;transition:color .16s;}
.topbar-actions a:hover{color:var(--accent);}
.topbar-cta{
  border:1px solid rgba(255,255,255,.24);
  border-radius:var(--radius-pill);
  padding:3px 14px;
}
.topbar-cta:hover{border-color:var(--accent);}

/* ============ 主导航 ============ */
.site-header{position:relative;z-index:1035;}
.mainnav{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s;
}
.mainnav.is-scrolled{box-shadow:0 6px 20px rgba(14,18,17,.06);}
.mainnav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .2s;
}
.mainnav.is-scrolled .mainnav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-text{
  display:flex;
  flex-direction:column;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  line-height:1.15;
}
.brand-text small{font-size:9px;letter-spacing:.14em;font-weight:600;color:var(--muted-dark);}
.nav-links{display:flex;align-items:center;gap:32px;}
.mainnav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:6px 0;
  white-space:nowrap;
  transition:color .18s;
}
.mainnav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.mainnav-link:hover::after,.mainnav-link.active::after{transform:scaleX(1);}
.mainnav-link.active{color:var(--ink);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.toggler{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  cursor:pointer;
}
.toggler span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  background:var(--ink);
  color:#fff;
  border:1px solid var(--ink);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.btn-brand:hover{background:var(--accent);border-color:var(--accent);color:var(--ink);transform:translateY(-1px);}
.btn-brand-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--ink);
  border:1px solid var(--ink);
  font-size:15px;
  font-weight:600;
  transition:background .18s,color .18s,transform .18s;
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-on-dark{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.42);
}
.btn-on-dark:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-accent{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--ink);
}
.btn-accent:hover{background:#fff;border-color:#fff;color:var(--ink);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  position:relative;
  padding:4px 0;
}
.btn-text svg{transition:transform .2s;}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--accent);
  transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.btn-text:hover::after{width:100%;}
.btn-text:hover svg{transform:translateX(4px);}
.btn-text.on-ink{color:var(--on-dark);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{
  background:var(--soft);
  border-bottom:1px solid var(--line);
  height:48px;
  display:flex;
  align-items:center;
}
.breadcrumb-list{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.breadcrumb-list::-webkit-scrollbar{display:none;}
.breadcrumb-list li::after{content:"/";margin-left:8px;color:var(--line-strong);}
.breadcrumb-list li:last-child::after{display:none;}
.breadcrumb-list a{transition:color .16s;}
.breadcrumb-list a:hover{color:var(--accent);}
.breadcrumb-current{color:var(--ink);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  background:var(--ink);
  color:var(--on-dark);
  overflow:hidden;
  padding:72px 0 76px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.7;
  pointer-events:none;
}
.cat-hero .site-container{position:relative;z-index:1;}
.cat-hero h1{
  font-size:clamp(1.9rem,3.8vw,3.1rem);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
  color:#fff;
  margin:10px 0 18px;
  max-width:19em;
}
.cat-hero-lead{
  font-size:1.05rem;
  color:#B7BFBC;
  max-width:34em;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;}
.hero-fact{min-width:120px;}
.hero-fact strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--accent);
  line-height:1.2;
}
.hero-fact span{font-size:12px;color:var(--muted-dark);letter-spacing:.04em;}
.hero-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  right:0;bottom:0;
  width:116px;height:116px;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:12px 12px;
}
.hero-arc{
  position:absolute;
  left:-30px;top:-26px;
  opacity:.5;
  pointer-events:none;
}

/* ============ 数据条 ============ */
.statbar{
  background:var(--soft);
  border-bottom:1px solid var(--line);
  padding:34px 0;
}
.statbar-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:0 24px;border-left:1px solid var(--line);min-width:0;}
.stat-item:first-child{border-left:none;padding-left:0;}
.stat-item strong{
  display:block;
  font-size:32px;
  font-weight:800;
  color:var(--accent);
  line-height:1.15;
  letter-spacing:-.01em;
}
.stat-item span{font-size:12px;color:var(--muted);letter-spacing:.06em;}

/* ============ 分类互链条 ============ */
.taxnav{background:#fff;border-bottom:1px solid var(--line);}
.taxnav-inner{
  display:flex;
  align-items:center;
  gap:38px;
  overflow-x:auto;
  scrollbar-width:none;
}
.taxnav-inner::-webkit-scrollbar{display:none;}
.taxnav-link{
  position:relative;
  padding:20px 0;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
  transition:color .18s;
}
.taxnav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.taxnav-link:hover{color:var(--ink);}
.taxnav-link:hover::after{transform:scaleX(1);}
.taxnav-link.active{color:var(--ink);font-weight:600;}
.taxnav-link.active::after{transform:scaleX(1);}

/* ============ 通用区块头 ============ */
.section-head{max-width:46em;margin-bottom:44px;}
.section-head .h2{margin-bottom:14px;}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}

/* ============ 系统组成（编号行） ============ */
.compose-grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start;}
.compose-side{position:sticky;top:104px;}
.compose-side .h2{margin-bottom:16px;}
.compose-side p{margin-bottom:22px;}
.feature-card{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  margin-bottom:20px;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.feature-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.feature-card-media{overflow:hidden;}
.feature-card-media img{
  width:100%;height:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .4s cubic-bezier(.22,.61,.36,1);
}
.feature-card:hover .feature-card-media img{transform:scale(1.04);}
.feature-card-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;gap:10px;}
.feature-card-body .h3{margin:0;}
.feature-card-body p{color:var(--muted);font-size:15px;max-width:34em;}
.tag-mini{
  display:inline-block;
  font-size:11px;
  letter-spacing:.14em;
  font-weight:600;
  color:var(--accent-deep);
  background:var(--accent-soft);
  border-radius:var(--radius-pill);
  padding:3px 12px;
  align-self:flex-start;
}
.flow-list{border-top:1px solid var(--line);}
.flow-row{
  display:grid;
  grid-template-columns:58px 1fr 32px;
  align-items:center;
  gap:20px;
  padding:24px 18px;
  border-bottom:1px solid var(--line);
  transition:background .2s;
}
.flow-row:hover{background:var(--soft);}
.flow-num{
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:var(--accent);
  letter-spacing:-.02em;
}
.flow-body h3{margin-bottom:6px;transition:color .18s;position:relative;display:inline-block;}
.flow-row:hover .flow-body h3::after{width:100%;}
.flow-body h3::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  height:2px;width:0;
  background:var(--accent);
  transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.flow-body p{font-size:14px;color:var(--muted);}
.flow-arrow{color:var(--muted-dark);transition:transform .2s,color .2s;}
.flow-row:hover .flow-arrow{transform:translateX(4px);color:var(--accent);}

/* ============ 规格对照 ============ */
.spec-table{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.spec-head,.spec-row{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;}
.spec-head{background:var(--soft);}
.spec-cell{
  padding:18px 20px;
  font-size:15px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:8px;
  min-width:0;
}
.spec-head .spec-cell{
  border-bottom:1px solid var(--line);
  font-weight:600;
  font-size:14px;
  color:var(--ink);
  flex-direction:column;
  align-items:flex-start;
  gap:4px;
}
.spec-head .spec-cell em{font-style:normal;font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0;}
.spec-name{color:var(--muted);font-size:14px;}
.spec-featured{background:var(--accent-soft);border-left:1px solid var(--accent);border-right:1px solid var(--accent);}
.spec-row:last-child .spec-cell{border-bottom:none;}
.spec-row{transition:background .18s;}
.spec-row:hover .spec-cell{background:var(--soft);}
.spec-row:hover .spec-cell.spec-featured{background:#DCF4EA;}
.badge-rec{
  display:inline-flex;
  align-items:center;
  font-size:11px;
  font-weight:600;
  color:#fff;
  background:var(--heat);
  border-radius:var(--radius-pill);
  padding:2px 10px;
  letter-spacing:.04em;
}
.spec-note{margin-top:22px;font-size:13px;color:var(--muted);}
.spec-plans{display:grid;gap:20px;}
.plan-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
}
.plan-card.is-featured{border-color:var(--accent);background:var(--accent-soft);}
.plan-card h3{font-size:1.15rem;font-weight:700;color:var(--ink);margin-bottom:6px;display:flex;align-items:center;gap:8px;}
.plan-price{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:6px;}
.plan-price span{font-size:12px;font-weight:400;color:var(--muted);margin-left:6px;}
.plan-list{border-top:1px solid var(--line);margin:14px 0 20px;}
.plan-list li{
  display:flex;
  justify-content:space-between;
  gap:14px;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
}
.plan-list li span{color:var(--muted);}
.plan-list li b{font-weight:600;color:var(--ink);text-align:right;}

/* ============ 场景 ============ */
.scene-block{display:grid;gap:44px;align-items:center;}
.scene-block + .scene-block{margin-top:70px;}
.scene-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.scene-block:hover .scene-media img{transform:scale(1.04);}
.scene-body .h3{font-size:1.35rem;margin:14px 0 12px;}
.scene-body p{color:var(--muted);margin-bottom:18px;max-width:34em;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--text);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:12px;height:7px;
  border-left:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}
.scene-cols{grid-template-columns:6fr 6fr;}
.scene-cols-wide{grid-template-columns:7fr 5fr;}

/* ============ 兼容接口 ============ */
.compat-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;
  align-items:center;
  font-size:13px;
  font-weight:500;
  color:var(--ink);
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:7px 16px;
  transition:border-color .18s,color .18s,background .18s;
}
.chip:hover{border-color:var(--accent);color:var(--accent-deep);background:#fff;}
.compat-list{display:grid;grid-template-columns:1fr 1fr;gap:22px 36px;}
.compat-list li h3{font-size:1rem;margin-bottom:6px;}
.compat-list li p{font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-acc .accordion-item{
  border:none;
  border-bottom:1px solid var(--line);
  background:transparent;
  border-radius:0;
}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;
  border:none;
  box-shadow:none;
  padding:22px 54px 22px 54px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--accent-deep);background:transparent;}
.faq-acc .accordion-button::after{
  content:"";
  position:absolute;
  right:14px;top:50%;
  width:14px;height:14px;
  margin:0;
  transform:translateY(-50%);
  background-image:
    linear-gradient(var(--ink),var(--ink)),
    linear-gradient(var(--ink),var(--ink));
  background-size:14px 2px,2px 14px;
  background-position:center center,center center;
  background-repeat:no-repeat;
  transition:transform .18s;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background-image:
    linear-gradient(var(--accent-deep),var(--accent-deep)),
    linear-gradient(var(--accent-deep),var(--accent-deep));
}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-num{
  position:absolute;
  left:0;top:24px;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.04em;
}
.faq-acc .accordion-body{
  padding:0 54px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.faq-acc .collapsing{transition:height .26s ease;}

/* ============ 资讯卡 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.news-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.news-media{overflow:hidden;}
.news-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.news-card:hover .news-media img{transform:scale(1.04);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:1.05rem;font-weight:600;line-height:1.5;color:var(--ink);}
.news-body p{font-size:14px;color:var(--muted);flex:1;}
.news-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);}

/* ============ 最终 CTA ============ */
.cta-band{
  background:var(--ink);
  color:var(--on-dark);
  padding:84px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-80px;top:-60px;
  width:320px;height:320px;
  border:1px solid rgba(0,192,139,.35);
  border-radius:50%;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:40px;bottom:-120px;
  width:260px;height:260px;
  border:1px solid rgba(255,106,43,.28);
  border-radius:50%;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;}
.cta-inner h2{font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:700;color:#fff;line-height:1.25;margin-bottom:14px;}
.cta-inner p{color:var(--muted-dark);max-width:32em;}
.cta-side{display:flex;flex-direction:column;gap:14px;}
.cta-side .btn-brand{background:var(--accent);border-color:var(--accent);color:var(--ink);}
.cta-side .btn-brand:hover{background:#fff;border-color:#fff;}
.cta-phone{font-size:14px;color:var(--muted-dark);}
.cta-phone strong{display:block;font-size:22px;color:#fff;font-weight:800;letter-spacing:.02em;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--muted-dark);padding:72px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand span{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.footer-desc{font-size:13px;line-height:1.9;color:var(--muted-dark);max-width:30em;margin-bottom:20px;}
.socials{display:flex;gap:12px;}
.socials a{
  width:34px;height:34px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:border-color .16s,background .16s;
}
.socials a:hover{border-color:var(--accent);background:rgba(0,192,139,.1);}
.footer-title{font-size:13px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.footer-list li,.footer-contact li{margin-bottom:11px;}
.footer-list a{font-size:13.5px;transition:color .16s;}
.footer-list a:hover{color:var(--accent);}
.footer-contact li{font-size:13.5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12.5px;
  flex-wrap:wrap;
}
.footer-bottom span{color:#7E8885;}

/* ============ 移动抽屉 ============ */
.mobile-drawer{--bs-offcanvas-width:330px;background:#fff;border:none;}
.mobile-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 22px;
}
.mobile-drawer .offcanvas-body{padding:6px 22px 0;}
.drawer-link{
  display:block;
  padding:16px 0;
  font-size:20px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  transition:color .16s,padding-left .16s;
}
.drawer-link:hover{padding-left:6px;}
.drawer-link.active{color:var(--accent-deep);}
.drawer-foot{padding:20px 22px;border-top:1px solid var(--line);}
.drawer-foot .btn-brand{width:100%;}

/* ============ 动效 ============ */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .site-container{max-width:1140px;}
}
@media (max-width:1199px){
  .nav-links{gap:18px;}
  .mainnav-link{font-size:14px;}
  .compose-grid{gap:34px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .toggler{display:flex;}
  .nav-right .btn-brand-sm{display:none;}
  .section{padding:72px 0;}
  .section-tight{padding:60px 0;}
  .compose-grid{grid-template-columns:1fr;gap:32px;}
  .compose-side{position:static;}
  .feature-card{grid-template-columns:1fr;}
  .feature-card-body{padding:24px;}
  .faq-wrap,.compat-grid{grid-template-columns:1fr;gap:32px;}
  .scene-cols,.scene-cols-wide{grid-template-columns:1fr;gap:26px;}
  .scene-block + .scene-block{margin-top:52px;}
  .scene-block .scene-media{order:-1;}
  .news-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-media{margin-top:34px;}
}
@media (max-width:767px){
  .site-container{padding:0 16px;}
  .topbar-note{display:none;}
  .topbar-inner{justify-content:space-between;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .cat-hero{padding:52px 0 58px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-brand,.hero-actions .btn-on-dark{width:100%;}
  .statbar-grid{grid-template-columns:1fr 1fr;gap:24px 0;}
  .stat-item{padding:0 18px;}
  .stat-item:nth-child(3){border-left:none;padding-left:0;}
  .flow-row{grid-template-columns:44px 1fr 24px;padding:20px 10px;gap:14px;}
  .flow-num{font-size:26px;}
  .spec-cell{padding:15px 16px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:575px){
  .h1{font-size:2.1rem;}
  .statbar-grid{grid-template-columns:1fr 1fr;}
  .hero-facts{gap:18px;}
  .hero-fact strong{font-size:22px;}
  .compat-list{grid-template-columns:1fr;}
  .faq-acc .accordion-button{padding:18px 44px 18px 42px;font-size:15.5px;}
  .faq-acc .accordion-body{padding:0 44px 20px 42px;}
  .faq-num{top:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1 !important;transform:none !important;}
}

/* roulang page: category3 */
:root{
  --ink:#0E1211;
  --paper:#F5F6F3;
  --card:#FFFFFF;
  --soft:#F0F2EE;
  --line:#E3E6E1;
  --line-strong:#CFD4CF;
  --text:#2B312F;
  --muted:#5B6360;
  --deep-muted:#9AA3A0;
  --deep-text:#EDEFEA;
  --teal:#00C08B;
  --teal-soft:#E4F7F0;
  --orange:#FF6A2B;
  --r-card:14px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,18,17,.04);
  --sh-2:0 12px 32px rgba(14,18,17,.08);
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-body-bg:var(--paper);
  --bs-body-color:var(--text);
  --bs-primary:#00C08B;
  --bs-link-color:var(--text);
  --bs-link-hover-color:var(--ink);
  --bs-border-radius:14px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--paper);
  color:var(--text);
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .16s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3{color:var(--ink);margin:0;}
h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;letter-spacing:-.02em;line-height:1.08;}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700;line-height:1.2;letter-spacing:-.01em;}
h3{font-size:1.125rem;font-weight:600;line-height:1.4;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;}
.site-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
section[id]{scroll-margin-top:88px;}

/* ---------- topbar ---------- */
.topbar{background:var(--ink);color:var(--deep-muted);font-size:12px;height:36px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:36px;}
.topbar-domain{color:#7C8481;letter-spacing:.04em;white-space:nowrap;}
.topbar-note{flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--deep-muted);}
.topbar-actions{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-actions a{color:#D6DBD7;font-size:12px;}
.topbar-actions a:hover{color:var(--teal);}
.topbar-cta{color:var(--teal);font-weight:600;}
.topbar-cta:hover{color:#fff;}

/* ---------- nav ---------- */
.mainnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1030;transition:box-shadow .2s ease;}
.mainnav.is-scrolled{box-shadow:0 6px 20px rgba(14,18,17,.06);}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .2s ease;}
.mainnav.is-scrolled .mainnav-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.1;}
.brand-text small{font-size:9px;font-weight:600;letter-spacing:.18em;color:var(--muted);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:32px;}
.mainnav-link{position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;white-space:nowrap;}
.mainnav-link::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--teal);transition:width .24s var(--ease);}
.mainnav-link:hover::after,.mainnav-link.active::after{width:100%;}
.mainnav-link:hover{color:var(--ink);}
.mainnav-link.active{color:var(--ink);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;}
.toggler{display:none;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;transition:border-color .16s ease;}
.toggler span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.toggler:hover{border-color:var(--ink);}

/* ---------- buttons ---------- */
.btn-brand{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:var(--r-btn);background:var(--ink);color:#fff;font-size:15px;font-weight:600;border:1px solid var(--ink);cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;}
.btn-brand:hover{background:var(--teal);border-color:var(--teal);color:var(--ink);transform:translateY(-1px);}
.btn-brand-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;border-radius:var(--r-btn);border:1px solid var(--ink);background:transparent;color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease;}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px);}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.38);color:#fff;}
.btn-ghost.on-dark:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);position:relative;padding-bottom:4px;}
.btn-text svg{transition:transform .2s var(--ease);flex-shrink:0;}
.btn-text:hover svg{transform:translateX(4px);}
.btn-text::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--teal);transition:width .24s var(--ease);}
.btn-text:hover::after{width:100%;}

/* ---------- offcanvas ---------- */
.mobile-drawer{background:#fff;width:min(88vw,380px);}
.mobile-drawer .offcanvas-header{padding:22px 24px;border-bottom:1px solid var(--line);}
.drawer-brand{font-size:16px;font-weight:700;color:var(--ink);}
.drawer-close{border:0;background:transparent;font-size:26px;line-height:1;color:var(--muted);padding:0 4px;}
.drawer-close:hover{color:var(--ink);}
.mobile-drawer .offcanvas-body{padding:16px 24px 24px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{font-size:20px;font-weight:600;color:var(--ink);padding:16px 0;border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--teal);}
.drawer-foot{padding:20px 24px 28px;border-top:1px solid var(--line);}
.drawer-foot .btn-brand{width:100%;}

/* ---------- breadcrumb ---------- */
.crumb{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;}
.crumb ol{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;overflow-x:auto;scrollbar-width:none;}
.crumb ol::-webkit-scrollbar{display:none;}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--ink);font-weight:600;}
.crumb a:hover{color:var(--teal);}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--paper);padding:64px 0 76px;}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;min-height:340px;position:relative;z-index:1;}
.hero-tag{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--teal);text-transform:uppercase;margin-bottom:18px;}
.hero-tag::before{content:"";width:28px;height:2px;background:var(--teal);display:block;}
.cat-hero h1{margin-bottom:20px;}
.cat-hero h1 .hl{background:linear-gradient(transparent 64%, rgba(0,192,139,.34) 64%);padding:0 2px;}
.hero-lead{font-size:18px;color:var(--muted);max-width:34em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;gap:28px;padding-top:24px;border-top:1px solid var(--line);}
.hero-stat{padding-right:28px;border-right:1px solid var(--line);}
.hero-stat:last-child{border-right:0;padding-right:0;}
.hero-stat b{display:block;font-size:30px;font-weight:800;color:var(--teal);line-height:1.1;letter-spacing:-.02em;}
.hero-stat span{font-size:12px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);}
.hero-grid-deco{position:absolute;right:-14px;bottom:-14px;width:120px;height:120px;pointer-events:none;
  background-image:repeating-linear-gradient(0deg, rgba(14,18,17,.08) 0 1px, transparent 1px 24px),
  repeating-linear-gradient(90deg, rgba(14,18,17,.08) 0 1px, transparent 1px 24px);}
.cat-hero::before{content:"";position:absolute;left:-80px;top:-60px;width:320px;height:320px;border:1px solid rgba(0,192,139,.18);border-radius:50%;pointer-events:none;}

/* ---------- category switch ---------- */
.cat-switch{background:#fff;border-bottom:1px solid var(--line);}
.cat-switch-inner{display:flex;gap:34px;overflow-x:auto;scrollbar-width:none;}
.cat-switch-inner::-webkit-scrollbar{display:none;}
.cat-switch-inner a{position:relative;padding:18px 0;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;}
.cat-switch-inner a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--teal);transition:width .24s var(--ease);}
.cat-switch-inner a:hover{color:var(--ink);}
.cat-switch-inner a:hover::after{width:100%;}
.cat-switch-inner a.active{color:var(--ink);font-weight:600;}
.cat-switch-inner a.active::after{width:100%;}

/* ---------- generic sections ---------- */
.sec{padding:96px 0;}
.sec-alt{background:#fff;}
.sec-deep{background:var(--ink);}
.sec-label{font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--teal);text-transform:uppercase;margin-bottom:14px;}
.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head p{font-size:16px;color:var(--muted);margin-top:14px;}

/* ---------- layer block ---------- */
.layer-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.layer-left{position:sticky;top:104px;}
.layer-left p{font-size:16px;color:var(--muted);margin:16px 0 24px;}
.layer-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.layer-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),border-color .24s ease,box-shadow .24s ease;}
.layer-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.layer-card .num{display:block;font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--teal);margin-bottom:14px;}
.layer-card h3{margin-bottom:10px;}
.layer-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{content:"";position:absolute;left:32px;top:14px;bottom:14px;width:1px;background:var(--line);}
.tl-item{display:grid;grid-template-columns:64px 1fr;align-items:start;}
.tl-node{display:flex;justify-content:center;padding-top:26px;}
.tl-node span{width:32px;height:32px;border-radius:50%;background:#fff;border:2px solid var(--teal);color:var(--ink);font-size:11px;font-weight:700;letter-spacing:.04em;display:grid;place-items:center;position:relative;z-index:1;}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;margin-bottom:22px;box-shadow:var(--sh-1);transition:transform .24s var(--ease),border-color .24s ease,box-shadow .24s ease;}
.tl-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.tl-card h3{margin-bottom:12px;}
.tl-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.tl-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tl-points li{font-size:13px;color:var(--ink);background:var(--teal-soft);border-radius:999px;padding:5px 14px;}
.tl-item:last-child .tl-card{margin-bottom:0;}

/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.metric-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;transition:border-color .2s ease,transform .24s var(--ease);}
.metric-box:hover{border-color:var(--line-strong);transform:translateY(-2px);}
.metric-box h3{margin-bottom:6px;}
.metric-box .sub{font-size:13px;color:var(--muted);display:block;margin-bottom:16px;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chips span{font-size:13px;color:var(--text);background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:5px 13px;}
.metric-box.hot .chips span.hot{background:var(--orange);border-color:var(--orange);color:#fff;}

/* ---------- dashboard split ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);}
.split-body h2{margin-bottom:16px;}
.split-body p{font-size:16px;color:var(--muted);}
.checklist{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.checklist li{display:flex;gap:12px;font-size:15px;color:var(--text);}
.checklist li::before{content:"";flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--teal);margin-top:11px;}

/* ---------- role table ---------- */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.table-wrap .scroll{overflow-x:auto;}
table.role-table{width:100%;border-collapse:collapse;min-width:640px;}
table.role-table th,table.role-table td{padding:20px 24px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);}
table.role-table thead th{background:var(--soft);font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;}
table.role-table tbody tr{transition:background .18s ease;}
table.role-table tbody tr:hover{background:var(--soft);}
table.role-table tbody tr:last-child td{border-bottom:0;}
table.role-table td:first-child{font-weight:600;color:var(--ink);}

/* ---------- FAQ ---------- */
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{background:transparent;box-shadow:none;padding:24px 0;font-size:1.0625rem;font-weight:600;color:var(--ink);border-radius:0;display:flex;align-items:center;gap:18px;}
.accordion-button:not(.collapsed){background:transparent;color:var(--ink);box-shadow:none;}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--teal);outline-offset:2px;}
.accordion-button .idx{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--teal);flex-shrink:0;}
.accordion-button::after{content:"+";background-image:none;font-size:24px;font-weight:400;line-height:1;color:var(--teal);width:auto;height:auto;margin-left:auto;transform:rotate(0deg);transition:transform .18s ease;display:flex;align-items:center;justify-content:center;}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{padding:0 0 26px 40px;font-size:15px;line-height:1.8;color:var(--muted);max-width:52em;}

/* ---------- news ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .24s var(--ease),border-color .24s ease,box-shadow .24s ease;}
.news-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2);}
.news-thumb{display:block;overflow:hidden;aspect-ratio:4/3;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge-cat{align-self:flex-start;font-size:12px;font-weight:600;color:#04624A;background:var(--teal-soft);border-radius:999px;padding:4px 12px;}
.news-body h3{font-size:1.0625rem;line-height:1.5;}
.news-body h3 a:hover{color:var(--teal);}
.news-body p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}
.news-meta{font-size:12px;color:var(--muted);margin-top:auto;}

/* ---------- final CTA ---------- */
.final-cta{background:var(--ink);padding:88px 0;position:relative;overflow:hidden;}
.final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;position:relative;z-index:1;}
.final-cta h2{color:#fff;margin-bottom:14px;max-width:22em;}
.final-cta p{color:var(--deep-muted);font-size:16px;max-width:38em;margin:0;}
.final-cta .sec-label{color:var(--teal);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
.final-cta .btn-brand{background:var(--teal);border-color:var(--teal);color:var(--ink);}
.final-cta .btn-brand:hover{background:#fff;border-color:#fff;color:var(--ink);}
.final-cta::after{content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border:1px solid rgba(0,192,139,.22);border-radius:50%;pointer-events:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--deep-text);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:44px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-desc{font-size:14px;color:var(--deep-muted);line-height:1.8;max-width:30em;}
.socials{display:flex;gap:12px;margin-top:22px;}
.socials a{width:36px;height:36px;border:1px solid rgba(255,255,255,.14);border-radius:10px;display:grid;place-items:center;transition:border-color .16s ease,background .16s ease;}
.socials a:hover{border-color:var(--teal);background:rgba(0,192,139,.1);}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:#fff;text-transform:uppercase;margin-bottom:20px;}
.footer-list li,.footer-contact li{margin-bottom:12px;font-size:14px;color:var(--deep-muted);}
.footer-list a{color:var(--deep-muted);}
.footer-list a:hover{color:var(--teal);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--deep-muted);}
.footer-bottom .domain{letter-spacing:.04em;}

/* ---------- reveal ---------- */
.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.js [data-reveal].is-visible{opacity:1;transform:none;}
.js .tl-item:nth-child(2) [data-reveal]{transition-delay:.06s;}
.js .tl-item:nth-child(3) [data-reveal]{transition-delay:.12s;}
.js .tl-item:nth-child(4) [data-reveal]{transition-delay:.18s;}
.js .tl-item:nth-child(5) [data-reveal]{transition-delay:.24s;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:20px;}
  .mainnav-link{font-size:14px;}
  .cat-hero-grid{gap:40px;}
  .layer-grid{gap:40px;}
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-right .btn-brand-sm{display:none;}
  .toggler{display:flex;}
  .sec{padding:72px 0;}
  .cat-hero{padding:48px 0 60px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/9;}
  .layer-grid{grid-template-columns:1fr;}
  .layer-left{position:static;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split .split-media{order:-1;}
  .split img{aspect-ratio:16/9;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .final-cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .timeline::before{left:26px;}
  .tl-item{grid-template-columns:52px 1fr;}
  .tl-node span{width:28px;height:28px;font-size:10px;}
}
@media (max-width:767px){
  .site-container{padding:0 16px;}
  .topbar-note{display:none;}
  .sec{padding:56px 0;}
  .hero-stats{gap:18px;}
  .hero-stat{padding-right:18px;}
  .hero-stat b{font-size:24px;}
  .layer-cards{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .accordion-body{padding-left:34px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:575px){
  h1{font-size:2.1rem;}
  .topbar-actions a:first-child{display:none;}
  .hero-stats{flex-wrap:wrap;gap:16px;}
  .hero-stat{border-right:0;padding-right:0;min-width:44%;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .js [data-reveal]{opacity:1;transform:none;}
  .news-card:hover .news-thumb img{transform:none;}
  .layer-card:hover,.tl-card:hover,.news-card:hover{transform:none;}
}

/* roulang page: category4 */
:root{
  --ink:#0E1211;
  --ink-soft:#2B312F;
  --muted:#5B6360;
  --line:#E3E6E1;
  --line-strong:#CFD4CF;
  --bg:#F5F6F3;
  --surface:#FFFFFF;
  --surface-soft:#F0F2EE;
  --green:#00C08B;
  --green-deep:#0A7A5B;
  --green-soft:#E4F7F0;
  --orange:#FF6A2B;
  --dark-muted:#9AA3A0;
  --dark-text:#EDEFEA;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:999px;
  --sh-1:0 1px 2px rgba(14,18,17,.04);
  --sh-2:0 12px 32px rgba(14,18,17,.08);
  --container:1240px;
  --bs-body-bg:#F5F6F3;
  --bs-body-color:#2B312F;
  --bs-primary:#00C08B;
  --bs-link-color:#2B312F;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-soft);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .16s ease,background-color .18s ease,border-color .18s ease}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.site-container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-tag{
  display:inline-block;
  font-size:.75rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--green-deep);
  font-weight:700;
  margin-bottom:14px;
}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  line-height:1.2;
  margin-bottom:14px;
}
.sec-head p{color:var(--muted);max-width:40em}
.sec-head-row{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:40px}
.sec-head-row .sec-head{margin-bottom:0}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  background:var(--ink);color:#fff;font-weight:600;font-size:15px;border:1px solid var(--ink);
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-brand:hover{background:var(--green);border-color:var(--green);color:var(--ink);transform:translateY(-1px)}
.btn-brand-sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;color:var(--ink);border:1px solid var(--ink);font-weight:600;font-size:15px;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost.on-dark:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink);
  padding:6px 2px;border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.btn-text svg{transition:transform .2s ease}
.btn-text:hover{border-bottom-color:var(--green)}
.btn-text:hover svg{transform:translateX(4px)}
.badge-topic{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-badge);
  background:var(--green-soft);color:var(--green-deep);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-hot{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--orange);color:#fff;font-size:12px;font-weight:600;
}
.meta-time{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:var(--dark-muted);height:36px;display:flex;align-items:center;font-size:12px}
.topbar-inner{display:flex;align-items:center;gap:20px;width:100%}
.topbar-domain{color:var(--dark-muted);letter-spacing:.04em;flex:0 0 auto}
.topbar-note{
  flex:1 1 auto;text-align:center;color:#C7CCC9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.topbar-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.topbar-actions a{color:var(--dark-text)}
.topbar-actions a:hover{color:var(--green)}
.topbar-cta{
  border:1px solid rgba(255,255,255,.28);border-radius:var(--r-badge);padding:2px 12px;color:#fff;
}
.topbar-cta:hover{background:var(--green);border-color:var(--green);color:var(--ink)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:#fff}
.mainnav{border-bottom:1px solid var(--line);height:72px;display:flex;align-items:center;background:#fff}
.site-header.is-scrolled .mainnav{height:60px;box-shadow:0 6px 18px rgba(14,18,17,.06)}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:10px}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.15}
.brand-text small{font-size:9px;letter-spacing:.18em;color:var(--muted);font-weight:600}
.nav-links{display:flex;align-items:center;gap:32px}
.mainnav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);padding:6px 0;
}
.mainnav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--green);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.mainnav-link:hover::after{transform:scaleX(1)}
.mainnav-link:hover{color:var(--ink)}
.mainnav-link.active{color:var(--ink);font-weight:600}
.mainnav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px}
.toggler{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.toggler span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px}
.offcanvas{background:#fff;border-left:1px solid var(--line);max-width:100%}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-body{padding:18px 20px 100px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  font-size:20px;font-weight:600;color:var(--ink);padding:16px 0;border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--green-deep)}
.drawer-cta{position:fixed;left:0;right:0;bottom:0;padding:16px 20px;background:#fff;border-top:1px solid var(--line)}
.drawer-cta .btn-brand{width:100%}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;background:var(--ink);color:var(--dark-text);overflow:hidden;
  min-height:380px;display:flex;align-items:center;padding:72px 0;
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(14,18,17,.94) 0%,rgba(14,18,17,.82) 52%,rgba(14,18,17,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero-grid{
  position:absolute;right:6%;top:16%;width:120px;height:120px;opacity:.08;
  background-image:linear-gradient(to right,#fff 1px,transparent 1px),linear-gradient(to bottom,#fff 1px,transparent 1px);
  background-size:20px 20px;
}
.cat-hero .site-container{position:relative;z-index:2}
.cat-hero-inner{max-width:760px}
.cat-hero .sec-tag{color:var(--green)}
.cat-hero h1{
  color:#fff;font-size:clamp(2rem,4.2vw,3rem);line-height:1.14;letter-spacing:-.02em;font-weight:800;
  margin-bottom:20px;
}
.cat-hero h1 em{font-style:normal;color:var(--green);box-shadow:inset 0 -.28em 0 rgba(0,192,139,.22)}
.cat-hero-lead{color:#C7CCC9;font-size:17px;max-width:38em;margin-bottom:28px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 分类互链导航条 ---------- */
.cat-chain{background:#fff;border-bottom:1px solid var(--line)}
.cat-chain-inner{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.cat-chain-inner::-webkit-scrollbar{display:none}
.cat-chain-inner a{
  position:relative;flex:0 0 auto;padding:18px 4px 16px;margin-right:28px;font-size:15px;font-weight:500;color:var(--muted);
  white-space:nowrap;
}
.cat-chain-inner a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--green);
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.cat-chain-inner a:hover{color:var(--ink)}
.cat-chain-inner a:hover::after{transform:scaleX(1)}
.cat-chain-inner a.active{color:var(--ink);font-weight:600}
.cat-chain-inner a.active::after{transform:scaleX(1)}

/* ---------- 支持通道 ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.channel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
.channel-top{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.channel-icon{
  width:44px;height:44px;border-radius:12px;background:var(--surface-soft);display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.channel-card h3{font-size:1.2rem;font-weight:600}
.channel-card p{color:var(--muted);font-size:15px;margin-bottom:18px}
.channel-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ink-soft);margin-bottom:8px;
}
.channel-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--green);
}

/* ---------- 数据条 ---------- */
.stat-strip{background:var(--surface-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-cell{padding:32px 24px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-num{font-size:32px;font-weight:800;color:var(--green-deep);line-height:1.1;letter-spacing:-.02em}
.stat-num small{font-size:15px;font-weight:700;margin-left:2px}
.stat-label{font-size:12px;color:var(--muted);letter-spacing:.06em;margin-top:6px}

/* ---------- 服务流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;position:relative;
  transition:border-color .2s ease,transform .2s ease;
}
.flow-item:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.flow-num{font-size:13px;font-weight:800;color:var(--green);letter-spacing:.16em;margin-bottom:12px;display:block}
.flow-item h3{font-size:1.05rem;font-weight:600;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro{position:sticky;top:96px}
.faq-intro h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.2;margin-bottom:16px}
.faq-intro p{color:var(--muted);font-size:15px;margin-bottom:22px}
.faq-contact{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
}
.faq-contact strong{display:block;color:var(--ink);font-size:15px;margin-bottom:6px}
.faq-contact span{font-size:14px;color:var(--muted)}
.faq-contact a{color:var(--green-deep);font-weight:600}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-button{
  background:transparent;box-shadow:none;padding:24px 0;display:flex;align-items:flex-start;gap:18px;
  font-size:1rem;font-weight:600;color:var(--ink);line-height:1.6;
}
.accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--green);outline-offset:-2px}
.accordion-button::after{display:none}
.faq-num{font-size:13px;font-weight:800;color:var(--green);letter-spacing:.1em;flex:0 0 30px;padding-top:3px}
.faq-q{flex:1 1 auto}
.faq-icon{
  position:relative;flex:0 0 20px;width:20px;height:20px;margin-top:4px;
  transition:transform .18s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);border-radius:2px;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg)}
.accordion-button:not(.collapsed) .faq-icon::before,
.accordion-button:not(.collapsed) .faq-icon::after{background:var(--green-deep)}
.accordion-body{padding:0 0 26px 48px;font-size:15px;line-height:1.8;color:var(--muted)}
.accordion-collapse{transition:height .26s ease}

/* ---------- 案例引文 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--green);
  border-radius:var(--r-card);padding:34px 32px;display:flex;flex-direction:column;gap:20px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);border-left-color:var(--green)}
.quote-text{font-size:1.1rem;font-weight:600;line-height:1.6;color:var(--ink)}
.quote-author{display:flex;flex-direction:column;gap:2px;font-size:13px;color:var(--muted)}
.quote-author strong{color:var(--ink);font-size:14px;font-weight:600}
.quote-result{display:flex;gap:32px;padding-top:18px;border-top:1px solid var(--line)}
.quote-result div strong{display:block;font-size:26px;font-weight:800;color:var(--orange);line-height:1.2}
.quote-result div span{font-size:12px;color:var(--muted)}

/* ---------- 资讯卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-soft)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.news-body h3{font-size:1.05rem;font-weight:600;line-height:1.5}
.news-body p{font-size:14px;color:var(--muted)}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}

/* ---------- 最终 CTA ---------- */
.cta-band{background:var(--ink);color:var(--dark-text);padding:88px 0}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(1.6rem,2.8vw,2.3rem);line-height:1.2;margin-bottom:16px}
.cta-band p{color:#C7CCC9;max-width:34em;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-panel{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:30px;
}
.cta-panel p{font-size:13px;color:var(--dark-muted);letter-spacing:.06em;margin-bottom:14px}
.cta-panel strong{display:block;color:#fff;font-size:24px;font-weight:800;letter-spacing:-.01em;margin-bottom:6px}
.cta-panel span{color:#C7CCC9;font-size:14px}
.cta-panel ul{margin-top:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px}
.cta-panel li{font-size:14px;color:#C7CCC9;padding:7px 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--dark-muted);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand span{color:#fff;font-size:16px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.8;color:var(--dark-muted);max-width:32em}
.socials{display:flex;gap:12px;margin-top:22px}
.socials a{
  width:36px;height:36px;border:1px solid rgba(255,255,255,.16);border-radius:10px;
  display:flex;align-items:center;justify-content:center;transition:border-color .16s ease,background-color .16s ease;
}
.socials a:hover{border-color:var(--green);background:rgba(0,192,139,.12)}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:18px;letter-spacing:.04em}
.footer-list li{margin-bottom:10px}
.footer-list a,.footer-contact li{font-size:14px;color:var(--dark-muted);transition:color .16s ease}
.footer-list a:hover{color:var(--green)}
.footer-contact li{margin-bottom:10px}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--dark-muted);
}
.footer-bottom a{color:var(--dark-muted)}
.footer-bottom a:hover{color:var(--green)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .site-container{max-width:1140px}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .faq-intro{position:static}
}
@media (max-width:991.98px){
  .sec{padding:72px 0}
  .nav-links{display:none}
  .toggler{display:flex}
  .channel-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-cell:nth-child(2){border-right:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px}
}
@media (max-width:767.98px){
  .site-container{padding:0 16px}
  .topbar-note{display:none}
  .topbar-inner{justify-content:space-between;gap:10px}
  .sec{padding:56px 0}
  .cat-hero{min-height:340px;padding:56px 0}
  .cat-hero-lead{font-size:15.5px}
  .flow-grid{grid-template-columns:1fr}
  .quote-result{gap:24px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .topbar-actions a:first-child{display:none}
  h1{font-size:2.1rem}
  .stat-grid{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);padding:22px 16px}
  .stat-cell:last-child{border-bottom:0}
  .accordion-body{padding-left:0}
  .cta-band{padding:64px 0}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .channel-card:hover,.news-card:hover,.quote-card:hover,.flow-item:hover,.btn-brand:hover,.btn-ghost:hover{transform:none}
}