/* roulang page: index */
:root{
  --c-ink:#10161A;
  --c-ink-soft:#4A555C;
  --c-mute:#8B949A;
  --c-brand:#1E5B52;
  --c-brand-deep:#123B36;
  --c-brand-mist:#A8C7BE;
  --c-accent:#D9683A;
  --c-paper:#F6F4EF;
  --c-card:#FFFFFF;
  --c-line:#E4DFD6;
  --c-fill:#EFEBE3;
  --c-success:#2F7D5D;
  --c-warn:#B7791F;
  --c-danger:#C0392B;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,22,26,.04),0 8px 24px -12px rgba(16,22,26,.12);
  --shadow-2:0 2px 6px rgba(16,22,26,.06),0 18px 44px -20px rgba(16,22,26,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 顶部导航（卡片化面板） ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 6px}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.88);
  border:1px solid var(--c-line);
  border-radius:18px;
  padding:10px 12px;
  box-shadow:var(--shadow-1);
  backdrop-filter:saturate(160%) blur(10px);
  transition:box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
}
.site-header.is-stuck .nav-panel{
  background:rgba(255,255,255,.97);
  box-shadow:var(--shadow-2);
  border-top-color:var(--c-brand-mist);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;padding:4px 6px;border-radius:12px}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(150deg,#1E5B52,#123B36);
  display:grid;place-items:center;color:#fff;font-size:15px;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--c-ink-soft);
  transition:background 200ms var(--ease),color 200ms var(--ease);
  white-space:nowrap;
}
.nav-item i{font-size:14px;opacity:.85}
.nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand)}
.nav-item.active{background:rgba(168,199,190,.3);color:var(--c-brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;font-size:16px;color:var(--c-brand);
  transition:background 200ms var(--ease);
}
.nav-toggle:hover{background:rgba(168,199,190,.22)}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-primary{display:none}
}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--c-paper);
  padding:18px 20px 96px;
  transform:translateY(-102%);
  transition:transform 280ms var(--ease);
  overflow-y:auto;
  display:flex;flex-direction:column;gap:20px;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;display:grid;place-items:center;font-size:16px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-card{
  background:#fff;border:1px solid var(--c-line);border-radius:14px;
  padding:14px 12px;display:flex;flex-direction:column;gap:8px;
  font-size:14px;font-weight:600;color:var(--c-ink);
  box-shadow:var(--shadow-1);
}
.drawer-card i{font-size:18px;color:var(--c-brand)}
.drawer-note{font-size:14px;color:var(--c-ink-soft);line-height:1.85}
.drawer-bottom{position:fixed;left:0;right:0;bottom:0;padding:12px 20px;background:rgba(246,244,239,.96);border-top:1px solid var(--c-line)}
@media (min-width:1024px){.mobile-drawer{display:none}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:-.01em;border:1px solid transparent;
  transition:background 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:#1a4f47;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-brand-deep)}
.btn-light:hover{background:var(--c-brand-mist);transform:translateY(-1px)}
.btn-text{height:auto;padding:0 4px;color:var(--c-brand);font-weight:600}
.btn-text .arrow{display:inline-block;transition:transform 200ms var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ============ 通用板块 ============ */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:96px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.h2{
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.32;letter-spacing:-.01em;
  padding-left:16px;position:relative;
}
.h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--c-accent);
}
.h3{font-size:20px;font-weight:600;line-height:1.5;letter-spacing:-.01em}
.lead{font-size:16px;color:var(--c-ink-soft);max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-brand);
  background:var(--c-brand-mist);
  background:rgba(168,199,190,.35);
  padding:6px 14px;border-radius:999px;
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:6px;font-size:13px;font-weight:600;
  background:rgba(168,199,190,.28);color:var(--c-brand);white-space:nowrap;
}
.badge.accent{background:rgba(217,104,58,.14);color:#A9491F}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ Hero ============ */
.hero{padding:40px 0 8px;position:relative;overflow:hidden}
@media (min-width:768px){.hero{padding:60px 0 16px}}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,199,190,.35),rgba(168,199,190,0) 68%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;gap:32px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:52px}}
.hero h1{
  font-size:clamp(32px,5vw,54px);font-weight:700;line-height:1.2;letter-spacing:-.015em;
  margin:18px 0 16px;
}
.hero-sub{font-size:17px;color:var(--c-ink-soft);max-width:36em}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px}
.hero-points{display:grid;gap:10px;margin-top:28px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-ink-soft)}
.hero-points i{color:var(--c-brand);font-size:14px;margin-top:7px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;
  background:var(--c-fill);
  box-shadow:inset 0 0 0 1px rgba(16,22,26,.08),var(--shadow-2);
}
.hero-media::before{
  content:"";position:absolute;left:-14px;bottom:-14px;width:120px;height:120px;border-radius:18px;
  border:1px dashed var(--c-brand-mist);z-index:-1;
}

/* ============ 信任条 ============ */
.trust{padding:28px 0 8px}
.trust-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(215px,1fr);gap:16px;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin}
@media (min-width:768px){
  .trust-track{grid-auto-flow:row;grid-template-columns:repeat(4,1fr);overflow:visible;padding-bottom:4px}
}
.trust-card{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.trust-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist)}
.trust-card i{font-size:20px;color:var(--c-brand);width:24px;text-align:center}
.trust-card span{font-size:14px;font-weight:500;color:var(--c-ink-soft);line-height:1.5}

/* ============ 三步上手 ============ */
.steps{display:grid;gap:26px;position:relative}
@media (min-width:1024px){
  .steps{grid-template-columns:repeat(3,1fr);gap:32px}
  .steps::before{
    content:"";position:absolute;top:44px;left:6%;right:6%;border-top:1px dashed var(--c-brand-mist);
  }
}
.step{position:relative;padding-top:6px}
.step-num{
  font-size:clamp(56px,7vw,72px);font-weight:700;line-height:1;letter-spacing:-.03em;
  color:rgba(30,91,82,.16);-webkit-text-stroke:1.5px var(--c-brand-mist);
  font-variant-numeric:tabular-nums;
}
.step .h3{margin:12px 0 8px}
.step p{font-size:15px;color:var(--c-ink-soft);max-width:30em}
.step-arrow{position:absolute;right:0;bottom:0;color:var(--c-brand-mist);font-size:15px}
@media (max-width:639px){
  .steps{border-left:1px dashed var(--c-brand-mist);padding-left:22px;gap:30px}
  .step::before{
    content:"";position:absolute;left:-28px;top:16px;width:10px;height:10px;border-radius:50%;
    background:var(--c-brand-mist);box-shadow:0 0 0 4px var(--c-paper);
  }
  .step-arrow{position:static;display:block;margin-top:8px}
}

/* ============ 能力列表 ============ */
.cap-grid{display:grid;gap:18px}
@media (min-width:768px){.cap-grid{grid-template-columns:1fr 1fr;gap:22px}}
.cap-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:22px;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.cap-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist)}
.cap-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;
  background:rgba(168,199,190,.28);color:var(--c-brand);
  display:grid;place-items:center;font-size:18px;
}
.cap-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.cap-item p{font-size:15px;color:var(--c-ink-soft);line-height:1.75}

/* ============ 案例 ============ */
.cases{display:grid;gap:22px}
@media (min-width:1024px){
  .cases{grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px}
  .case-main{grid-row:span 2}
}
.case-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist)}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-fill)}
.case-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-body h3{font-size:18px;font-weight:600;line-height:1.5}
.case-body p{font-size:15px;color:var(--c-ink-soft)}
.metric{
  font-size:26px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;
}
.metric small{font-size:13px;font-weight:500;color:var(--c-mute);margin-left:6px;letter-spacing:0}
@media (min-width:768px) and (max-width:1023px){
  .case-split{display:grid;grid-template-columns:1fr 1fr;gap:22px}
}
.case-more{margin-top:28px}

/* ============ FAQ ============ */
.faq-layout{display:grid;gap:32px}
@media (min-width:1024px){.faq-layout{grid-template-columns:320px 1fr;gap:56px}}
.faq-side{position:sticky;top:104px;align-self:start}
.faq-side p{margin-top:14px;font-size:15px;color:var(--c-ink-soft)}
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--c-brand)}
.faq-q .faq-icon{flex:0 0 auto;color:var(--c-brand);font-size:14px;transition:transform 240ms var(--ease)}
.faq-item.open .faq-q .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease)}
.faq-a-inner{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-soft)}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.news-list{border-top:1px solid var(--c-line)}
.news-row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:18px;
  padding:18px 12px;border-bottom:1px solid var(--c-line);
  transition:background 200ms var(--ease);
}
.news-row:hover{background:#FBFAF7}
.news-main{display:flex;flex-direction:column;gap:2px;min-width:0}
.news-title{display:block;font-size:16px;font-weight:600;line-height:1.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-sum{display:block;font-size:14px;color:var(--c-mute);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-time{font-size:13px;color:var(--c-mute);font-variant-numeric:tabular-nums;white-space:nowrap}
@media (max-width:767px){
  .news-row{grid-template-columns:1fr;gap:8px;padding:16px 6px}
  .news-time{order:3}
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:120px;padding:28px 0;color:var(--c-mute);
}
.empty-state i{font-size:24px;color:var(--c-brand-mist)}
.empty-state p{font-size:14px}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-brand-deep);color:#fff;
  border-radius:24px;padding:36px 26px;
  display:grid;gap:24px;
}
@media (min-width:768px){.cta-band{padding:48px 44px;grid-template-columns:1fr auto;align-items:center;gap:40px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;opacity:.7;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.75);max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.72);margin-top:72px;padding:60px 0 0}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.01em}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:rgba(255,255,255,.72);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--c-brand-mist)}
.footer-desc{font-size:14px;line-height:1.85;max-width:26em}
.footer-bottom{
  margin-top:44px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 移动端底部固定 CTA ============ */
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:56px;
  background:var(--c-brand);color:#fff;
}
.mobile-cta-bar a{display:flex;align-items:center;justify-content:center;gap:8px;height:56px;font-size:15px;font-weight:600}
@media (max-width:767px){
  .mobile-cta-bar{display:block}
  body{padding-bottom:56px}
  .site-footer{padding-bottom:8px}
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:60ms}
.reveal[data-delay="2"]{transition-delay:120ms}
.reveal[data-delay="3"]{transition-delay:180ms}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .btn:hover,.trust-card:hover,.cap-item:hover,.case-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --c-ink:#10161A;
  --c-ink-soft:#4A555C;
  --c-mute:#8B949A;
  --c-brand:#1E5B52;
  --c-brand-deep:#123B36;
  --c-brand-mist:#A8C7BE;
  --c-accent:#D9683A;
  --c-paper:#F6F4EF;
  --c-card:#FFFFFF;
  --c-line:#E4DFD6;
  --c-fill:#EFEBE3;
  --c-ok:#2F7D5D;
  --c-warn:#B7791F;
  --c-danger:#C0392B;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
  --shadow-2:0 2px 4px rgba(16,22,26,.05), 0 18px 40px -18px rgba(16,22,26,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-brand);text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.35;margin:0}
p{margin:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:12px;z-index:60;padding:0}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);
  border-radius:18px;
  padding:10px 14px;
  box-shadow:var(--shadow-1);
  transition:box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
}
.site-header.is-scrolled .nav-panel{
  background:#fff;
  border-color:#DCD6CB;
  box-shadow:var(--shadow-2);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:16px;white-space:nowrap}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;
  background:var(--c-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:transform 200ms var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-1px)}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;height:44px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--c-ink-soft);
  transition:background 200ms var(--ease),color 200ms var(--ease);
  white-space:nowrap;
}
.nav-item i{font-size:13px;color:var(--c-mute);transition:color 200ms var(--ease)}
.nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand)}
.nav-item:hover i{color:var(--c-brand)}
.nav-item.active{background:rgba(168,199,190,.28);color:var(--c-brand-deep);font-weight:600}
.nav-item.active i{color:var(--c-brand-deep)}
.nav-actions{display:flex;align-items:center;gap:8px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;border-radius:12px;
  color:var(--c-ink-soft);font-size:16px;cursor:pointer;
  transition:background 200ms var(--ease),color 200ms var(--ease);
}
.nav-toggle:hover{background:rgba(168,199,190,.22);color:var(--c-brand)}
.nav-toggle:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#1A5049;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);color:var(--c-brand-deep)}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--c-brand)}
.btn-text i{transition:transform 200ms var(--ease)}
.btn-text:hover i{transform:translateX(4px)}
.btn-block{width:100%}

/* ---------- Badges & tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(168,199,190,.26);color:var(--c-brand-deep);
  font-size:13px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tag-label{font-size:13px;color:var(--c-mute);letter-spacing:.06em}
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-soft);font-size:14px;
  transition:border-color 200ms var(--ease),color 200ms var(--ease),background 200ms var(--ease);
}
.tag-pill:hover{border-color:var(--c-brand-mist);color:var(--c-brand-deep);background:rgba(168,199,190,.16)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:26px 0 0;font-size:14px;color:var(--c-mute);
}
.breadcrumb a{color:var(--c-ink-soft);transition:color 200ms var(--ease)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#C8C1B5}
.breadcrumb .crumb-current{color:var(--c-mute);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article head ---------- */
.article-hero{padding:26px 0 0}
.article-title{
  font-size:clamp(28px,4.4vw,40px);
  font-weight:700;
  color:var(--c-ink);
  margin:16px 0 18px;
  max-width:22ch;
}
@media (max-width:767px){.article-title{max-width:none}}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:var(--c-mute)}
.article-meta i{margin-right:5px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CFC8BB}
.rule{height:1px;background:var(--c-line);border:0;margin:26px 0 0}

/* ---------- Article layout ---------- */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 262px;
  gap:56px;
  align-items:start;
  padding:44px 0 20px;
}
.article-main{min-width:0;max-width:780px}
.toc-col{position:sticky;top:104px}
.toc-title{
  font-size:12px;letter-spacing:.14em;color:var(--c-mute);
  text-transform:uppercase;margin-bottom:12px;font-weight:600;
}
.toc-list{display:grid;gap:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--c-ink-soft);
  padding:7px 0 7px 12px;border-left:3px solid var(--c-line);
  transition:color 200ms var(--ease),border-color 200ms var(--ease);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--c-brand)}
.toc-list a.is-current{color:var(--c-brand-deep);font-weight:600;border-left-color:var(--c-accent)}

/* ---------- Prose ---------- */
.article-prose{color:#1F272B}
.article-prose > *:first-child{margin-top:0}
.article-prose p{font-size:17px;line-height:1.9;color:#28312F;margin:0 0 1.25em}
.article-prose h2{
  position:relative;font-size:22px;font-weight:600;color:var(--c-ink);
  margin:2.1em 0 .85em;padding-left:15px;
}
.article-prose h2::before{
  content:"";position:absolute;left:0;top:.24em;width:3px;height:1.05em;
  background:var(--c-accent);border-radius:2px;
}
.article-prose h3{font-size:19px;font-weight:600;margin:1.7em 0 .6em;color:var(--c-ink)}
.article-prose h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--c-ink-soft)}
.article-prose ul,.article-prose ol{padding-left:1.35em;margin:0 0 1.3em}
.article-prose li{font-size:17px;line-height:1.85;margin:.45em 0;color:#28312F}
.article-prose li::marker{color:var(--c-brand-mist)}
.article-prose a{color:var(--c-brand);text-decoration:underline;text-decoration-color:rgba(30,91,82,.35);text-underline-offset:3px}
.article-prose a:hover{text-decoration-color:var(--c-brand)}
.article-prose blockquote{
  margin:1.6em 0;padding:16px 22px;
  background:var(--c-paper);border-left:3px solid var(--c-brand-mist);
  border-radius:0 12px 12px 0;color:var(--c-ink-soft);font-size:16px;
}
.article-prose blockquote p{font-size:16px;margin:0 0 .6em;color:var(--c-ink-soft)}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose img{width:100%;border-radius:12px;background:var(--c-fill);margin:1.6em 0}
.article-prose figure{margin:1.6em 0}
.article-prose figcaption{font-size:13px;color:var(--c-mute);text-align:center;margin-top:10px}
.article-prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;background:#fff;border-radius:12px;overflow:hidden}
.article-prose th,.article-prose td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.article-prose th{background:#F1EEE7;font-weight:600;font-size:14px;color:var(--c-ink)}
.article-prose tbody tr:nth-child(even){background:#FBFAF7}
.article-prose hr{border:0;height:1px;background:var(--c-line);margin:2em 0}
.article-prose code{background:#F1EEE7;border-radius:6px;padding:2px 6px;font-size:15px}

/* ---------- Empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;padding:40px 20px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--radius-card);
  color:var(--c-mute);font-size:14px;text-align:center;
}
.empty-state i{font-size:26px;color:#C8C1B5}
.empty-state p{font-size:15px;color:var(--c-ink-soft)}

/* ---------- Article footer blocks ---------- */
.article-foot{padding:8px 0 0;margin-top:34px;border-top:1px solid var(--c-line)}
.article-foot .tag-row{padding-top:22px}
.return-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px}

.section{padding:56px 0}
@media (min-width:1024px){.section{padding:72px 0}}
.section-head{margin-bottom:26px}
.section-title{font-size:clamp(22px,2.6vw,28px);font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:3px;height:22px;background:var(--c-accent);border-radius:2px;display:inline-block}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-ink-soft);max-width:62ch}

.post-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden}
.post-row{
  display:flex;align-items:center;gap:18px;padding:18px 22px;
  border-bottom:1px solid var(--c-line);color:inherit;
  transition:background 200ms var(--ease);
}
.post-list .post-row:last-child{border-bottom:0}
.post-row:hover{background:#FBFAF7}
.post-row .row-main{min-width:0;flex:1}
.post-row .row-title{font-size:16px;font-weight:600;color:var(--c-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-row .row-desc{font-size:14px;color:var(--c-mute);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px}
.post-row .row-time{font-size:13px;color:var(--c-mute);white-space:nowrap}
.post-row:hover .row-title{color:var(--c-brand-deep)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-brand-deep);color:#fff;border-radius:24px;
  padding:44px 40px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;opacity:.5;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;color:#fff}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:#B9CCC7;max-width:46ch}
.cta-points{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:#D7E3DF}
.cta-points i{color:var(--c-brand-mist);font-size:13px}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:#E5EEEB}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.22);background:#fff;color:var(--c-ink);
  font-size:15px;font-family:inherit;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field textarea{height:auto;min-height:88px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(168,199,190,.42)}
.field-error{font-size:13px;color:#F0A08A;margin-top:6px}
.field.has-error input,.field.has-error textarea{border-color:#C0392B;box-shadow:0 0 0 3px rgba(192,57,43,.18)}
.form-note{margin-top:12px;font-size:13px;color:#96ACA6;line-height:1.7}
.cta-band .btn-primary{background:#fff;color:var(--c-brand-deep)}
.cta-band .btn-primary:hover{background:#EDF3F1}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-brand-deep);color:#D7E3DF;margin-top:72px;
  padding:60px 0 22px;border-radius:32px 32px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:var(--c-brand-mist)}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:#A9BDB8;max-width:36ch}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col li{font-size:14px;color:#A9BDB8}
.footer-col a{color:#B9CCC7;font-size:14px;transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--c-brand-mist)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);margin-top:42px;padding-top:20px;
  font-size:13px;color:#93A8A3;
}

/* ---------- Mobile fixed CTA ---------- */
.mobile-cta{display:none}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    grid-template-columns:1fr 1fr;gap:10px;padding:14px;
    background:#fff;border:1px solid var(--c-line);border-radius:18px;box-shadow:var(--shadow-2);
  }
  .nav-panel.is-open .nav-links{display:grid}
  .nav-links .nav-item{
    height:48px;justify-content:flex-start;border:1px solid var(--c-line);
    background:rgba(246,244,239,.8);padding:0 12px;
  }
  .nav-links .nav-item.active{background:rgba(168,199,190,.28);border-color:var(--c-brand-mist)}
  .article-shell{grid-template-columns:1fr;gap:0;padding-top:32px}
  .toc-col{display:none}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-actions .btn-primary{display:none}
}
@media (max-width:767px){
  .brand-text{font-size:15px}
  .article-title{font-size:clamp(24px,6.4vw,30px)}
  .article-meta{gap:10px;font-size:13px}
  .post-row{flex-direction:column;align-items:flex-start;gap:8px}
  .post-row .row-title,.post-row .row-desc{white-space:normal}
  .cta-band{padding:32px 22px;border-radius:20px}
  .cta-form{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:56px;background:var(--c-brand);padding:0 16px;align-items:center;
    box-shadow:0 -6px 20px rgba(16,22,26,.18);
  }
  .mobile-cta .btn{width:100%;height:44px;background:#fff;color:var(--c-brand-deep)}
  body{padding-bottom:64px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
    --c-ink:#10161A;
    --c-ink-soft:#4A555C;
    --c-mute:#8B949A;
    --c-brand:#1E5B52;
    --c-brand-deep:#123B36;
    --c-brand-mist:#A8C7BE;
    --c-accent:#D9683A;
    --c-paper:#F6F4EF;
    --c-card:#FFFFFF;
    --c-line:#E4DFD6;
    --c-fill:#EFEBE3;
    --c-ok:#2F7D5D;
    --c-warn:#B7791F;
    --c-danger:#C0392B;
    --r-card:16px;
    --r-btn:10px;
    --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
    --shadow-2:0 2px 6px rgba(16,22,26,.06), 0 18px 44px -18px rgba(16,22,26,.2);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16.5px;
    line-height:1.8;
    color:var(--c-ink);
    background:var(--c-paper);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;background:var(--c-fill)}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button,input,textarea,select{font:inherit;color:inherit}
  button{cursor:pointer;border:0;background:none}
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){ .container{padding:0 32px} }

  /* ============ 头部导航 ============ */
  .site-header{position:sticky;top:12px;z-index:50;padding:0 0 8px}
  .nav-panel{
    display:flex;align-items:center;gap:16px;
    background:rgba(255,255,255,.92);
    -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    border:1px solid var(--c-line);border-radius:18px;
    box-shadow:var(--shadow-1);padding:10px 14px;
    transition:box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  }
  .site-header.scrolled .nav-panel{background:#fff;box-shadow:var(--shadow-2);border-color:var(--c-brand-mist)}
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;white-space:nowrap}
  .brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--c-brand);color:#fff;font-size:15px;flex:0 0 auto}
  .brand-text{color:var(--c-ink)}
  .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;height:44px;padding:0 12px;border-radius:12px;
    font-size:14px;color:var(--c-ink-soft);
    transition:background .2s var(--ease), color .2s var(--ease);
  }
  .nav-item i{font-size:14px;color:var(--c-brand)}
  .nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand)}
  .nav-item.active{background:rgba(168,199,190,.32);color:var(--c-brand);font-weight:600}
  .nav-actions{display:flex;align-items:center;gap:10px}
  .nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);color:var(--c-brand);place-items:center}
  .nav-drawer-cta{display:none}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;white-space:nowrap;
    transition:transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:#174941;transform:translateY(-1px);box-shadow:var(--shadow-2)}
  .btn-ghost{background:transparent;border:1px solid var(--c-line);color:var(--c-ink)}
  .btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);color:var(--c-brand)}
  .btn-light{background:#fff;color:var(--c-brand-deep)}
  .btn-light:hover{background:#EFEBE3;transform:translateY(-1px)}
  .btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;font-size:15px}
  .btn-text i{transition:transform .2s var(--ease)}
  .btn-text:hover i{transform:translateX(4px)}

  /* ============ 徽章 / 标签 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
    background:rgba(168,199,190,.28);color:var(--c-brand);font-size:13px;font-weight:600;
  }
  .badge-accent{background:rgba(217,104,58,.14);color:#A8492A}

  /* ============ 通用板块 ============ */
  .section{padding:60px 0}
  @media (min-width:1024px){ .section{padding:92px 0} }
  .section-head{max-width:740px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand)}
  .h2{font-size:clamp(24px,3vw,34px);margin:14px 0 12px}
  .h3{font-size:20px;margin:0 0 8px}
  .lead{color:var(--c-ink-soft);font-size:16.5px}
  .muted{color:var(--c-mute);font-size:13.5px}

  .card{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist)}

  .figure{border-radius:16px;overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1);background:var(--c-fill)}
  .figure img{width:100%;height:100%;object-fit:cover}

  /* ============ Hero ============ */
  .page-hero{position:relative;padding:36px 0 20px;overflow:hidden}
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;opacity:.07;pointer-events:none;
  }
  .page-hero > .container{position:relative;z-index:1}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-mute);margin-bottom:20px}
  .breadcrumb a:hover{color:var(--c-brand)}
  .breadcrumb .sep{color:#C9C2B6}
  .breadcrumb .current{color:var(--c-ink-soft)}
  .hero-title{font-size:clamp(30px,5vw,50px);line-height:1.2;letter-spacing:-.01em;margin:16px 0 16px}
  .hero-sub{color:var(--c-ink-soft);font-size:17px;max-width:560px}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
  .hero-point{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--c-ink-soft);background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:6px 13px}
  .hero-point i{color:var(--c-brand);font-size:12px}

  /* ============ 信任条 ============ */
  .trust{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
  .trust-item{display:flex;align-items:center;gap:10px;padding:14px 16px;background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;font-size:14px;color:var(--c-ink-soft);box-shadow:var(--shadow-1)}
  .trust-item i{color:var(--c-brand);font-size:16px}

  /* ============ 步骤 ============ */
  .steps{display:grid;gap:0;margin-top:26px}
  .step{display:grid;grid-template-columns:70px 1fr;gap:16px;padding:22px 0;border-bottom:1px dashed var(--c-line)}
  .step:last-child{border-bottom:0;padding-bottom:0}
  .step-no{font-size:32px;font-weight:700;line-height:1.1;color:rgba(30,91,82,.34);font-variant-numeric:tabular-nums;transition:color .2s var(--ease)}
  .step:hover .step-no{color:var(--c-accent)}
  .step-body p{color:var(--c-ink-soft);font-size:15.5px;margin-top:6px}

  .side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:22px}
  .side-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--c-line)}
  .side-row:last-child{border-bottom:0;padding-bottom:0}
  .side-row:first-child{padding-top:0}
  .side-key{font-size:14px;color:var(--c-ink-soft)}
  .side-val{font-size:15px;font-weight:600;color:var(--c-brand);font-variant-numeric:tabular-nums}

  /* ============ 清单 ============ */
  .check-list{display:grid;gap:12px;margin-top:18px}
  .check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--c-ink-soft)}
  .check-list i{color:var(--c-brand);font-size:14px;margin-top:7px}

  /* ============ 场景卡 ============ */
  .scene-card{overflow:hidden;display:flex;flex-direction:column;height:100%}
  .scene-card .figure{border:0;border-radius:0;box-shadow:none;border-bottom:1px solid var(--c-line)}
  .scene-card .figure img{aspect-ratio:16/10}
  .scene-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
  .scene-body p{color:var(--c-ink-soft);font-size:15px}

  /* ============ FAQ ============ */
  .faq{border-top:1px solid var(--c-line);margin-top:26px}
  .faq-item{border-bottom:1px solid var(--c-line)}
  .faq-q{display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;padding:20px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink)}
  .faq-q i{color:var(--c-brand);flex:0 0 auto;transition:transform .24s var(--ease)}
  .faq-item.open .faq-q i{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
  .faq-a p{padding:0 4px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-soft);max-width:840px}
  .faq-item.open .faq-a{max-height:360px}

  /* ============ CTA 深色条 ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--c-brand-deep);color:#fff;border-radius:24px;
    padding:36px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.9;
    background-image:radial-gradient(circle at 18% 26%, rgba(168,199,190,.20), transparent 42%),
                     radial-gradient(circle at 82% 74%, rgba(217,104,58,.16), transparent 44%);
  }
  .cta-band > *{position:relative;z-index:1}
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin:0 0 8px}
  .cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:620px}

  /* ============ 表单 ============ */
  .apply-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:26px}
  .field{display:grid;gap:8px;margin-bottom:18px}
  .field label{font-size:14px;font-weight:600}
  .field label .req{color:var(--c-accent)}
  .field input,.field select,.field textarea{
    width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:10px;background:#fff;
    font-size:15px;transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(168,199,190,.35)}
  .form-note{font-size:13px;color:var(--c-mute);margin-top:12px;line-height:1.7}
  .form-msg{display:none;align-items:center;gap:8px;margin-top:14px;font-size:14px;color:var(--c-ok)}
  .form-msg.show{display:flex}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.82);margin-top:60px;padding:56px 0 24px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px}
  .footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:330px}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px}
  .footer-col ul{display:grid;gap:10px}
  .footer-col li{font-size:14px;color:rgba(255,255,255,.72)}
  .footer-col a:hover{color:var(--c-brand-mist)}
  .footer-bottom{
    margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.6);
  }

  /* ============ 动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease), transform .5s var(--ease)}
  .reveal.in{opacity:1;transform:none}

  /* ============ 移动端底部 CTA ============ */
  .mobile-cta{display:none}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .trust{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr}
    .nav-toggle{display:grid}
    .nav-links{display:none}
    .nav-links.open{
      display:grid;position:fixed;left:12px;right:12px;top:84px;
      grid-template-columns:1fr 1fr;gap:10px;padding:16px;
      background:#fff;border:1px solid var(--c-line);border-radius:18px;
      box-shadow:var(--shadow-2);z-index:70;max-height:72vh;overflow:auto;
    }
    .nav-links.open .nav-item{
      height:auto;min-height:64px;flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;
      padding:12px;border:1px solid var(--c-line);border-radius:14px;font-size:14px;
    }
    .nav-links.open .nav-item i{font-size:16px}
    .nav-links.open .nav-drawer-cta{
      display:inline-flex;grid-column:1/-1;align-items:center;justify-content:center;
      height:48px;border-radius:12px;background:var(--c-brand);color:#fff;font-weight:600;
    }
  }
  @media (max-width:768px){
    .section{padding:52px 0}
    .step{grid-template-columns:54px 1fr}
    .step-no{font-size:26px}
    .cta-band{padding:26px;border-radius:20px}
    .mobile-cta{
      display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;
      padding:8px 16px 10px;background:rgba(246,244,239,.95);
      border-top:1px solid var(--c-line);
    }
    .mobile-cta .btn{width:100%}
    body{padding-bottom:66px}
    .footer-bottom{flex-direction:column}
  }
  @media (max-width:520px){
    .trust{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .brand-text{font-size:15px}
    .hero-title{font-size:28px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    .reveal{opacity:1;transform:none}
  }

/* roulang page: category2 */
:root{
    --c-ink:#10161A;
    --c-ink-soft:#4A555C;
    --c-mute:#8B949A;
    --c-brand:#1E5B52;
    --c-brand-deep:#123B36;
    --c-brand-mist:#A8C7BE;
    --c-accent:#D9683A;
    --c-paper:#F6F4EF;
    --c-card:#FFFFFF;
    --c-line:#E4DFD6;
    --c-fill:#EFEBE3;
    --c-success:#2F7D5D;
    --c-warn:#B7791F;
    --c-danger:#C0392B;
    --r-card:16px;
    --r-btn:10px;
    --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
    --shadow-2:0 2px 6px rgba(16,22,26,.06), 0 18px 40px -16px rgba(16,22,26,.20);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--c-paper);
    color:var(--c-ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-style:none;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  h1,h2,h3{letter-spacing:-.01em;font-weight:700;line-height:1.35;}
  p{line-height:1.85;}
  .num{font-variant-numeric:tabular-nums;}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .container{padding:0 32px;} }

  :focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}

  /* ---------- header / nav ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:12px 0;transition:padding .25s var(--ease);}
  .nav-panel{
    display:flex;align-items:center;gap:14px;
    background:rgba(255,255,255,.86);
    -webkit-backdrop-filter:saturate(150%) blur(10px);
    backdrop-filter:saturate(150%) blur(10px);
    border:1px solid var(--c-line);
    border-radius:18px;
    box-shadow:var(--shadow-1);
    padding:10px 14px;
    transition:box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  }
  .site-header.is-scrolled .nav-panel{
    background:rgba(255,255,255,.96);
    box-shadow:var(--shadow-2);
    border-color:#DCD6CB;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;flex:0 0 auto;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    background:var(--c-brand);color:#fff;
    display:grid;place-items:center;font-size:15px;
    flex:0 0 auto;
  }
  .brand-text{white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;
    height:44px;padding:0 13px;border-radius:12px;
    font-size:14px;color:var(--c-ink-soft);
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
    white-space:nowrap;
  }
  .nav-item i{font-size:13px;color:var(--c-brand);opacity:.9;}
  .nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand);}
  .nav-item.active{background:rgba(168,199,190,.30);color:var(--c-brand);font-weight:600;}
  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--c-line);background:#fff;cursor:pointer;
    align-items:center;justify-content:center;font-size:16px;color:var(--c-brand);
  }
  .nav-cta-mobile{display:none;}

  @media (max-width:1080px){
    .nav-item{padding:0 10px;font-size:13.5px;}
    .nav-item span{display:none;}
  }

  @media (max-width:960px){
    .nav-links{
      position:fixed;left:14px;right:14px;top:78px;
      display:grid;grid-template-columns:1fr 1fr;gap:10px;
      background:#fff;border:1px solid var(--c-line);border-radius:18px;
      box-shadow:var(--shadow-2);padding:14px;
      opacity:0;visibility:hidden;transform:translateY(-10px);
      transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
      max-height:calc(100vh - 100px);overflow:auto;
    }
    .nav-links.open{opacity:1;visibility:visible;transform:none;}
    .nav-item{justify-content:flex-start;background:rgba(246,244,239,.8);}
    .nav-item span{display:inline;}
    .nav-actions .btn-primary{display:none;}
    .nav-toggle{display:inline-flex;}
    .nav-cta-mobile{
      display:inline-flex;grid-column:span 2;justify-content:center;
      height:48px;margin-top:4px;
    }
  }
  @media (min-width:961px){
    .nav-cta-mobile{display:none !important;}
  }

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn-primary{background:var(--c-brand);color:#fff;}
  .btn-primary:hover{background:#1a5048;transform:translateY(-1px);box-shadow:0 12px 22px -14px rgba(18,59,54,.75);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
  .btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);transform:translateY(-1px);}
  .btn-on-dark{background:#fff;color:var(--c-brand-deep);}
  .btn-on-dark:hover{background:var(--c-brand-mist);transform:translateY(-1px);}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;font-weight:600;color:var(--c-brand);
  }
  .btn-link i{transition:transform .2s var(--ease);}
  .btn-link:hover i{transform:translateX(4px);}
  .btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

  /* ---------- badges / tags ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 12px;border-radius:999px;
    background:rgba(168,199,190,.30);color:var(--c-brand);
    font-size:13px;font-weight:600;line-height:1;
  }
  .badge-soft{background:rgba(168,199,190,.18);}
  .badge-accent{background:rgba(217,104,58,.12);color:#B04E24;}

  /* ---------- hero ---------- */
  .page-hero{position:relative;overflow:hidden;padding:44px 0 56px;}
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    opacity:.13;pointer-events:none;
  }
  .page-hero .container{position:relative;z-index:1;}
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-mute);margin-bottom:18px;flex-wrap:wrap;}
  .breadcrumb a{color:var(--c-ink-soft);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--c-brand);}
  .breadcrumb .sep{color:#C6C0B5;}
  .breadcrumb .current{color:var(--c-ink);font-weight:600;}
  .page-hero h1{
    font-size:clamp(28px,4.4vw,46px);
    margin:16px 0 14px;
    max-width:19em;
  }
  .hero-sub{font-size:18px;font-weight:600;color:var(--c-brand);margin-bottom:12px;}
  .hero-desc{font-size:16px;color:var(--c-ink-soft);max-width:36em;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--c-ink-soft);}
  .hero-points li{display:inline-flex;align-items:center;gap:8px;}
  .hero-points i{color:var(--c-accent);font-size:13px;}
  .hero-media{position:relative;}
  .hero-media img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:20px;background:var(--c-fill);
    border:1px solid var(--c-line);
    box-shadow:var(--shadow-1);
  }
  .hero-media figcaption{
    font-size:13px;color:var(--c-mute);text-align:center;margin-top:10px;
  }

  /* ---------- sections ---------- */
  .section{padding:clamp(60px,7vw,96px) 0;}
  .section-head{max-width:760px;margin-bottom:38px;}
  .section-head h2{
    font-size:clamp(24px,3vw,34px);
    padding-left:16px;position:relative;
  }
  .section-head h2::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
    border-radius:2px;background:var(--c-accent);
  }
  .section-head p{margin-top:14px;color:var(--c-ink-soft);font-size:16px;}
  .section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

  /* ---------- capability cards ---------- */
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
  .card{
    background:var(--c-card);border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:26px;
    box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .card-icon{
    width:46px;height:46px;border-radius:13px;
    background:rgba(168,199,190,.26);color:var(--c-brand);
    display:grid;place-items:center;font-size:18px;margin-bottom:16px;
  }
  .card h3{font-size:20px;margin-bottom:10px;}
  .card p{font-size:15px;color:var(--c-ink-soft);}
  .card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .card-meta span{
    font-size:13px;color:var(--c-ink-soft);background:rgba(246,244,239,.9);
    border:1px solid var(--c-line);border-radius:8px;padding:3px 10px;
  }

  /* ---------- compare table ---------- */
  .table-note{font-size:14px;color:var(--c-mute);margin-bottom:16px;}
  .table-wrap{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);padding:6px;overflow:hidden;
  }
  .compare-table{width:100%;border-collapse:collapse;font-size:15px;}
  .compare-table caption{caption-side:top;text-align:left;padding:14px 16px 6px;font-size:14px;color:var(--c-mute);}
  .compare-table thead th{
    background:rgba(168,199,190,.20);color:var(--c-brand);
    font-size:14px;font-weight:600;text-align:left;
    padding:14px 16px;
  }
  .compare-table thead th:first-child{border-top-left-radius:12px;border-bottom-left-radius:12px;}
  .compare-table thead th:last-child{border-top-right-radius:12px;border-bottom-right-radius:12px;}
  .compare-table tbody th{
    text-align:left;font-weight:600;font-size:15px;color:var(--c-ink);
    padding:16px;width:20%;
  }
  .compare-table tbody td{
    padding:16px;color:var(--c-ink-soft);border-top:1px solid var(--c-line);
    vertical-align:top;
  }
  .compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:#FBFAF7;}
  .compare-table .hl{color:var(--c-accent);font-weight:600;}

  /* ---------- scenario cards ---------- */
  .scenario{
    display:grid;grid-template-columns:220px 1fr;gap:0;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .scenario:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .scenario img{width:100%;height:100%;min-height:190px;object-fit:cover;background:var(--c-fill);}
  .scenario-body{padding:24px 26px;}
  .scenario-body h3{font-size:19px;margin:12px 0 10px;}
  .scenario-body p{font-size:15px;color:var(--c-ink-soft);}
  .scenario-body ul{margin-top:14px;display:grid;gap:8px;}
  .scenario-body li{font-size:14px;color:var(--c-ink-soft);display:flex;gap:9px;align-items:flex-start;}
  .scenario-body li i{color:var(--c-brand);font-size:12px;margin-top:6px;}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
  .step{
    position:relative;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-1);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .step-num{
    font-size:34px;font-weight:700;line-height:1;
    color:transparent;-webkit-text-stroke:1px var(--c-brand-mist);
    margin-bottom:14px;font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:18px;margin-bottom:8px;}
  .step p{font-size:14.5px;color:var(--c-ink-soft);}
  .step::after{
    content:"";position:absolute;top:44px;right:-20px;width:20px;
    border-top:1px dashed var(--c-line);
  }
  .steps .step:last-child::after{display:none;}

  /* ---------- faq ---------- */
  .faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:6px 26px;}
  .faq-item{border-bottom:1px solid var(--c-line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    background:none;border:0;cursor:pointer;text-align:left;
    padding:20px 0;font-size:17px;font-weight:600;color:var(--c-ink);
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--c-brand);}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;
    background:rgba(168,199,190,.22);color:var(--c-brand);
    display:grid;place-items:center;font-size:12px;
    transition:transform .24s var(--ease),background .24s var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(180deg);background:rgba(217,104,58,.14);color:var(--c-accent);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
  .faq-a-inner{padding:0 44px 22px 0;}
  .faq-a-inner p{font-size:15px;color:var(--c-ink-soft);}

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--c-brand-deep);color:#fff;
    border-radius:24px;padding:44px;
    display:flex;align-items:center;justify-content:space-between;gap:34px;
    box-shadow:var(--shadow-2);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:44px 44px;opacity:.7;pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
  .cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:44em;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

  /* ---------- footer ---------- */
  .site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.76);padding:64px 0 26px;margin-top:56px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:32em;}
  .footer-col h4{
    font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col li{font-size:14px;color:rgba(255,255,255,.72);}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease);}
  .footer-col a:hover{color:var(--c-brand-mist);}
  .footer-bottom{
    margin-top:40px;padding-top:20px;
    border-top:1px solid rgba(255,255,255,.10);
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.6);
  }

  /* ---------- mobile cta bar ---------- */
  .mobile-cta{display:none;}

  /* ---------- reveal ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
  .reveal.is-visible{opacity:1;transform:none;}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-media{order:2;}
    .grid-3{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:repeat(2,1fr);}
    .step::after{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;}

    .compare-table thead{display:none;}
    .compare-table,
    .compare-table tbody,
    .compare-table tr,
    .compare-table th,
    .compare-table td{display:block;width:100%;}
    .compare-table tbody tr{
      border:1px solid var(--c-line);border-radius:14px;
      padding:8px 16px 12px;margin-bottom:14px;background:#fff;
    }
    .compare-table tbody th{
      padding:12px 0 8px;font-size:16px;border-bottom:1px dashed var(--c-line);
    }
    .compare-table tbody td{
      border-top:0;padding:10px 0;display:flex;gap:12px;align-items:flex-start;
    }
    .compare-table tbody td::before{
      content:attr(data-label);
      flex:0 0 92px;font-size:13px;color:var(--c-mute);font-weight:600;line-height:1.7;
    }
    .compare-table tbody tr:hover td,.compare-table tbody tr:hover th{background:transparent;}
  }

  @media (max-width:767px){
    body{padding-bottom:56px;}
    .grid-3,.grid-2{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .scenario{grid-template-columns:1fr;}
    .scenario img{min-height:170px;aspect-ratio:16/10;}
    .faq-list{padding:2px 18px;}
    .faq-a-inner{padding-right:0;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .mobile-cta{
      display:flex;position:fixed;left:0;right:0;bottom:0;height:56px;z-index:70;
      align-items:center;justify-content:center;
      background:var(--c-brand);color:#fff;font-size:15px;font-weight:600;
      box-shadow:0 -6px 18px -10px rgba(16,22,26,.5);
    }
    .mobile-cta:active{background:#1a5048;}
  }
  @media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;}
    .hero-points{gap:8px 16px;}
    .compare-table tbody td::before{flex-basis:78px;}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category3 */
:root{
  --c-ink:#10161A;
  --c-ink-soft:#4A555C;
  --c-mute:#8B949A;
  --c-brand:#1E5B52;
  --c-brand-deep:#123B36;
  --c-brand-mist:#A8C7BE;
  --c-accent:#D9683A;
  --c-paper:#F6F4EF;
  --c-card:#FFFFFF;
  --c-line:#E4DFD6;
  --c-fill:#EFEBE3;
  --c-success:#2F7D5D;
  --c-warn:#B7791F;
  --c-danger:#C0392B;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
  --shadow-2:0 1px 2px rgba(16,22,26,.05), 0 16px 34px -16px rgba(16,22,26,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-paper);
  font-weight:400;
  letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 通用标题 ---------- */
.h1{font-size:clamp(32px,5vw,54px);line-height:1.2;}
.h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
.h3{font-size:20px;line-height:1.4;}
.section-sub{color:var(--c-ink-soft);font-size:16px;line-height:1.85;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-brand);letter-spacing:.04em;}
.eyebrow::before{content:"";display:inline-block;width:3px;height:14px;border-radius:2px;background:var(--c-accent);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding-top:12px;}
.nav-panel{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);
  border-radius:18px;
  padding:10px 12px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled .nav-panel{background:rgba(255,255,255,.99);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-brand);color:#fff;
  display:grid;place-items:center;font-size:15px;flex-shrink:0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-0.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-item{
  display:inline-flex;align-items:center;gap:6px;
  height:44px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--c-ink-soft);white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-item i{font-size:13px;opacity:.85;}
.nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand);}
.nav-item.active{background:rgba(168,199,190,.30);color:var(--c-brand);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  font-size:16px;cursor:pointer;align-items:center;justify-content:center;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#184F47;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;background:none;border:none;padding:0;
  color:var(--c-brand);font-size:15px;font-weight:600;cursor:pointer;
}
.btn-link i{transition:transform .2s var(--ease);}
.btn-link:hover i{transform:translateX(4px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:999px;
  background:rgba(168,199,190,.28);color:var(--c-brand);
  font-size:13px;font-weight:600;line-height:1;
}
.badge-accent{background:rgba(217,104,58,.12);color:#B0512A;}
.badge-plain{background:rgba(16,22,26,.05);color:var(--c-ink-soft);}

/* ---------- 卡片 ---------- */
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
.img-cover{width:100%;height:100%;object-fit:cover;background:var(--c-fill);border-radius:16px;}

/* ---------- 标题栏 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:#fff;font-weight:600;}

/* ---------- Hero ---------- */
.hero-card{
  position:relative;overflow:hidden;border-radius:24px;background:var(--c-brand-deep);
  min-height:420px;display:flex;align-items:center;
  box-shadow:var(--shadow-2);
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30;}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(18,59,54,.94) 0%,rgba(18,59,54,.80) 48%,rgba(18,59,54,.48) 100%);
}
.hero-inner{position:relative;padding:56px 48px;max-width:760px;color:#fff;}
.hero-inner h1{color:#fff;margin:20px 0 18px;}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:620px;}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:32px;}
.hero-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);}
.hero-facts{display:flex;gap:36px;flex-wrap:wrap;margin-top:40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);}
.hero-fact strong{display:block;font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff;letter-spacing:-0.02em;}
.hero-fact span{font-size:13px;color:rgba(255,255,255,.72);}

/* ---------- 合作模式 ---------- */
.mode-card{display:flex;flex-direction:column;overflow:hidden;height:100%;}
.mode-media{height:220px;overflow:hidden;border-radius:16px 16px 0 0;}
.mode-media img{border-radius:0;transition:transform .3s var(--ease);}
.mode-card:hover .mode-media img{transform:scale(1.03);}
.mode-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.mode-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.mode-list li{display:flex;gap:10px;font-size:15px;color:var(--c-ink-soft);line-height:1.7;}
.mode-list i{color:var(--c-brand);font-size:13px;margin-top:7px;flex-shrink:0;}

/* ---------- 流程时间轴 ---------- */
.time-track{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;}
.time-track li{position:relative;padding:38px 20px 0 0;}
.time-track li::before{content:"";position:absolute;top:10px;left:14px;right:0;height:1px;background:var(--c-line);}
.time-track li::after{
  content:"";position:absolute;top:5px;left:0;width:11px;height:11px;border-radius:50%;
  background:var(--c-brand);border:3px solid var(--c-paper);box-sizing:content-box;
}
.time-track li:last-child::before{background:linear-gradient(90deg,var(--c-line),transparent);}
.time-num{display:block;font-size:13px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;margin-bottom:8px;letter-spacing:.04em;}
.time-track h3{font-size:17px;margin-bottom:8px;}
.time-track p{font-size:14px;line-height:1.75;color:var(--c-ink-soft);}

/* ---------- 支持资源窄卡 ---------- */
.support-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.support-card{display:flex;flex-direction:column;gap:12px;padding:24px 22px;}
.support-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(168,199,190,.26);color:var(--c-brand);font-size:17px;
}
.support-card h3{font-size:16px;}
.support-card p{font-size:14px;line-height:1.75;color:var(--c-ink-soft);}

/* ---------- 场景 ---------- */
.scene-list{display:flex;flex-direction:column;gap:14px;}
.scene-item{
  display:flex;gap:16px;padding:18px 20px;border-radius:14px;background:#fff;
  border:1px solid var(--c-line);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.scene-item:hover{border-color:var(--c-brand-mist);box-shadow:var(--shadow-1);transform:translateY(-2px);}
.scene-item .num{
  font-size:20px;font-weight:700;color:var(--c-brand-mist);font-variant-numeric:tabular-nums;
  line-height:1.3;flex-shrink:0;width:32px;
}
.scene-item h3{font-size:16px;margin-bottom:4px;}
.scene-item p{font-size:14px;line-height:1.75;color:var(--c-ink-soft);}
.media-frame{border-radius:20px;overflow:hidden;border:1px solid var(--c-line);background:var(--c-fill);box-shadow:var(--shadow-1);}
.media-frame img{width:100%;height:100%;object-fit:cover;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q:hover{color:var(--c-brand);}
.faq-q .chev{color:var(--c-mute);font-size:14px;transition:transform .24s var(--ease),color .2s var(--ease);flex-shrink:0;}
.faq-item.open .faq-q .chev{transform:rotate(180deg);color:var(--c-brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a p{padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--c-ink-soft);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;background:var(--c-brand-deep);color:#fff;
  padding:48px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(168,199,190,.22);
}
.cta-band::before{
  content:"";position:absolute;right:40px;bottom:-90px;width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(168,199,190,.14);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;max-width:600px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);}
.cta-band .cta-text{position:relative;z-index:1;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.82);margin-top:80px;}
.site-footer .container{padding-top:64px;padding-bottom:28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:rgba(255,255,255,.76);transition:color .2s var(--ease);line-height:1.7;}
.footer-col a:hover{color:var(--c-brand-mist);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(168,199,190,.22);color:#fff;}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:-0.01em;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- 移动端底部 CTA ---------- */
.mobile-cta{display:none;}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{
    display:none;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    background:#fff;border:1px solid var(--c-line);border-radius:18px;
    padding:14px;box-shadow:var(--shadow-2);
    grid-template-columns:1fr 1fr;gap:8px;
  }
  .nav-links.open{display:grid;}
  .nav-item{height:46px;justify-content:flex-start;background:rgba(246,244,239,.7);}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .support-strip{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  .time-track{grid-template-columns:repeat(2,1fr);}
  .time-track li{padding:38px 18px 22px 0;}
  .time-track li::before{left:14px;right:8px;}
}
@media (max-width:767px){
  body{padding-bottom:56px;}
  .hero-card{min-height:auto;border-radius:20px;}
  .hero-inner{padding:32px 24px;}
  .hero-facts{gap:24px;padding-top:22px;margin-top:28px;}
  .hero-fact strong{font-size:22px;}
  .section-head{margin-bottom:24px;}
  .time-track{grid-template-columns:1fr;}
  .time-track li{padding:0 0 24px 28px;}
  .time-track li::before{top:0;bottom:14px;left:5px;right:auto;width:1px;height:auto;}
  .time-track li::after{top:6px;left:0;}
  .support-strip{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;border-radius:20px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .faq-a p{padding-right:20px;}
  .mode-media{height:190px;}
  .mobile-cta{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(246,244,239,.96);border-top:1px solid var(--c-line);
    padding:8px 20px calc(8px + env(safe-area-inset-bottom));
    backdrop-filter:blur(6px);
  }
  .mobile-cta .btn{width:100%;height:48px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .brand-text{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
    --c-ink:#10161A;
    --c-ink-soft:#4A555C;
    --c-mute:#8B949A;
    --c-brand:#1E5B52;
    --c-brand-deep:#123B36;
    --c-brand-mist:#A8C7BE;
    --c-accent:#D9683A;
    --c-paper:#F6F4EF;
    --c-card:#FFFFFF;
    --c-line:#E4DFD6;
    --c-fill:#EFEBE3;
    --c-success:#2F7D5D;
    --c-warn:#B7791F;
    --c-danger:#C0392B;
    --r-card:16px;
    --r-img:18px;
    --r-btn:10px;
    --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
    --shadow-2:0 2px 4px rgba(16,22,26,.06), 0 18px 40px -16px rgba(16,22,26,.20);
    --ease:cubic-bezier(.2,.7,.3,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--c-paper);
    color:var(--c-ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:-0.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  h1,h2,h3,h4{letter-spacing:-0.01em;font-weight:600;margin:0;line-height:1.35;}
  p{margin:0 0 1.2em;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .container{padding:0 32px;} }

  /* ============ 导航 ============ */
  .site-header{position:sticky;top:12px;z-index:60;padding:0;}
  .nav-panel{
    display:flex;align-items:center;gap:12px;
    background:rgba(255,255,255,.92);
    backdrop-filter:saturate(150%) blur(8px);
    border:1px solid var(--c-line);
    border-radius:18px;
    box-shadow:var(--shadow-1);
    padding:10px 12px;
    transition:box-shadow 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
  }
  .site-header.is-scrolled .nav-panel{
    background:rgba(255,255,255,.98);
    box-shadow:var(--shadow-2);
    border-color:var(--c-brand-mist);
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;padding:4px 6px;border-radius:12px;transition:background 200ms var(--ease);}
  .brand:hover{background:rgba(168,199,190,.22);}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
    background:var(--c-brand);color:#fff;font-size:15px;flex-shrink:0;
  }
  .brand-text{font-size:16px;font-weight:700;color:var(--c-ink);white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
  .nav-item{
    display:inline-flex;align-items:center;gap:8px;
    height:44px;padding:0 14px;border-radius:12px;
    font-size:14px;color:var(--c-ink-soft);
    transition:background 200ms var(--ease),color 200ms var(--ease);
    white-space:nowrap;
  }
  .nav-item i{font-size:13px;opacity:.85;}
  .nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand);}
  .nav-item.active{background:rgba(168,199,190,.30);color:var(--c-brand);font-weight:600;}
  .nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
    background:#fff;color:var(--c-ink);font-size:16px;
  }
  .nav-toggle:hover{background:rgba(168,199,190,.22);}

  /* 移动端抽屉 */
  .nav-drawer{
    position:fixed;inset:0;z-index:80;background:var(--c-paper);
    padding:20px;display:none;flex-direction:column;gap:18px;
  }
  .nav-drawer.open{display:flex;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;font-size:16px;}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .drawer-item{
    display:flex;flex-direction:column;gap:8px;padding:16px;background:#fff;border:1px solid var(--c-line);
    border-radius:14px;font-size:14px;color:var(--c-ink-soft);
  }
  .drawer-item i{color:var(--c-brand);font-size:16px;}
  .drawer-item.active{border-color:var(--c-brand-mist);color:var(--c-brand);font-weight:600;}
  .drawer-foot{margin-top:auto;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;
    border:1px solid transparent;transition:all 200ms var(--ease);white-space:nowrap;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:#1a5049;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
  .btn-ghost:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);}
  .btn-accent{background:var(--c-accent);color:#fff;}
  .btn-accent:hover{background:#c75c31;transform:translateY(-1px);}
  .btn-text{
    display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-brand);
    padding:4px 0;
  }
  .btn-text i{transition:transform 200ms var(--ease);font-size:12px;}
  .btn-text:hover i{transform:translateX(4px);}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
    outline:2px solid var(--c-accent);outline-offset:2px;
  }

  /* ============ 通用区块 ============ */
  .section{padding:56px 0;}
  @media (min-width:768px){ .section{padding:84px 0;} }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-brand);
    background:rgba(168,199,190,.24);border-radius:999px;padding:5px 12px;margin-bottom:14px;
  }
  .h1{font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.28;}
  .h2{font-size:clamp(23px,3vw,34px);}
  .lead{font-size:17px;color:var(--c-ink-soft);line-height:1.85;}
  .muted{color:var(--c-mute);font-size:14px;}
  .h2-bar{position:relative;padding-left:14px;}
  .h2-bar::before{
    content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--c-accent);
  }

  /* ============ 面包屑 ============ */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-mute);padding-top:24px;}
  .breadcrumb a:hover{color:var(--c-brand);}
  .breadcrumb .sep{opacity:.6;}
  .breadcrumb .cur{color:var(--c-ink-soft);}

  /* ============ Hero ============ */
  .page-hero{padding:28px 0 8px;}
  .hero-card{
    background:#fff;border:1px solid var(--c-line);border-radius:24px;box-shadow:var(--shadow-1);
    overflow:hidden;display:grid;grid-template-columns:1fr;gap:0;
  }
  @media (min-width:900px){ .hero-card{grid-template-columns:1.25fr .9fr;} }
  .hero-body{padding:30px 24px 32px;}
  @media (min-width:768px){ .hero-body{padding:44px 44px 48px;} }
  .hero-media{position:relative;min-height:230px;background:var(--c-fill);}
  .hero-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
  .hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,59,54,.30),rgba(18,59,54,.06));}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}

  /* 徽章 */
  .badge{
    display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
    font-size:13px;background:rgba(168,199,190,.28);color:var(--c-brand);
  }
  .badge.soft{background:rgba(217,104,58,.12);color:#b04f27;}
  .badge.plain{background:#fff;border:1px solid var(--c-line);color:var(--c-ink-soft);}

  /* ============ 主体两栏：左 sticky 锚点 + 右 FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start;}
  @media (min-width:900px){ .faq-layout{grid-template-columns:250px minmax(0,1fr);gap:44px;} }
  .anchor-nav{
    position:static;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);padding:18px;display:flex;gap:10px;overflow-x:auto;
  }
  @media (min-width:900px){
    .anchor-nav{position:sticky;top:96px;flex-direction:column;overflow:visible;}
  }
  .anchor-nav .anchor-title{display:none;font-size:13px;color:var(--c-mute);margin-bottom:4px;}
  @media (min-width:900px){ .anchor-nav .anchor-title{display:block;} }
  .anchor-link{
    display:inline-flex;align-items:center;gap:9px;flex-shrink:0;
    padding:9px 12px;border-radius:10px;font-size:14px;color:var(--c-ink-soft);
    border-left:3px solid transparent;transition:all 200ms var(--ease);white-space:nowrap;
  }
  .anchor-link:hover{background:#FBFAF7;color:var(--c-brand);}
  .anchor-link.active{background:#FBFAF7;color:var(--c-brand);font-weight:600;border-left-color:var(--c-accent);}
  .anchor-link i{font-size:12px;opacity:.8;}

  .faq-group{margin-bottom:40px;}
  .faq-group:last-child{margin-bottom:0;}
  .group-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px;}
  .group-num{
    flex-shrink:0;width:44px;height:44px;border-radius:12px;background:rgba(168,199,190,.26);
    color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
  }
  .group-head h2{font-size:22px;}
  .group-head p{font-size:14px;color:var(--c-mute);margin:4px 0 0;}

  .faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;}
  .faq-item{border-bottom:1px solid var(--c-line);}
  .faq-item:last-child{border-bottom:none;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:none;border:none;padding:18px 20px;text-align:left;
    font-size:17px;font-weight:600;color:var(--c-ink);transition:background 200ms var(--ease);
  }
  .faq-q:hover{background:#FBFAF7;}
  .faq-q i{flex-shrink:0;color:var(--c-brand);font-size:13px;transition:transform 240ms var(--ease);}
  .faq-item.open .faq-q i{transform:rotate(180deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);}
  .faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-soft);}
  .faq-a-inner p:last-child{margin-bottom:0;}
  .faq-a-inner ul{margin:10px 0 0;display:grid;gap:8px;}
  .faq-a-inner li{display:flex;gap:10px;align-items:flex-start;}
  .faq-a-inner li::before{
    content:"";width:5px;height:5px;border-radius:50%;background:var(--c-brand-mist);margin-top:.7em;flex-shrink:0;
  }

  /* ============ 支持卡片 ============ */
  .support-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:780px){ .support-grid{grid-template-columns:repeat(3,1fr);} }
  .support-card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
    padding:24px;transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .support-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .support-icon{
    width:42px;height:42px;border-radius:12px;background:rgba(168,199,190,.26);color:var(--c-brand);
    display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:14px;
  }
  .support-card h3{font-size:18px;margin-bottom:8px;}
  .support-card p{font-size:14px;color:var(--c-ink-soft);margin-bottom:0;line-height:1.8;}

  /* 图文卡 */
  .media-split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
  @media (min-width:860px){ .media-split{grid-template-columns:1.05fr .95fr;gap:40px;} }
  .media-split img{border-radius:var(--r-img);object-fit:cover;width:100%;height:100%;background:var(--c-fill);}
  .media-frame{border:1px solid var(--c-line);border-radius:calc(var(--r-img) + 4px);overflow:hidden;background:var(--c-fill);aspect-ratio:16/10;}
  .tick-list{display:grid;gap:14px;margin-top:18px;}
  .tick-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-ink-soft);}
  .tick-list i{color:var(--c-brand);margin-top:.35em;font-size:14px;flex-shrink:0;}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;background:var(--c-brand-deep);border-radius:24px;overflow:hidden;
    padding:38px 26px;display:grid;gap:22px;align-items:center;
  }
  @media (min-width:860px){ .cta-band{grid-template-columns:1fr auto;padding:48px 52px;} }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:44px 44px;opacity:.6;
  }
  .cta-band > *{position:relative;}
  .cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);margin-bottom:10px;}
  .cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:560px;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.82);margin-top:60px;padding:52px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr;} }
  @media (min-width:980px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;} }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.12);}
  .footer-brand strong{color:#fff;font-size:16px;}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:0;max-width:320px;}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col li{font-size:14px;color:rgba(255,255,255,.72);}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color 200ms var(--ease);}
  .footer-col a:hover{color:var(--c-brand-mist);}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.6);
  }

  /* 移动端底部 CTA */
  .mobile-cta{
    position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;align-items:center;gap:12px;
    height:56px;padding:0 16px;background:var(--c-brand);box-shadow:0 -6px 20px -10px rgba(16,22,26,.35);
  }
  .mobile-cta span{color:rgba(255,255,255,.85);font-size:13px;flex:1;}
  .mobile-cta a{color:#fff;font-weight:600;font-size:15px;}
  @media (min-width:900px){ .mobile-cta{display:none;} }

  /* 入场动效 */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity 500ms var(--ease),transform 500ms var(--ease);}
  .reveal.in{opacity:1;transform:none;}
  @media (prefers-reduced-motion: reduce){
    *{transition:none !important;animation:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

  @media (max-width:899px){
    .nav-links{display:none;}
    .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
    body{padding-bottom:56px;}
  }
  @media (max-width:640px){
    .nav-actions .btn-primary{display:none;}
    .hero-body{padding:26px 20px 30px;}
    .faq-q{font-size:16px;padding:16px;}
    .faq-a-inner{padding:0 16px 18px;}
  }

/* roulang page: category5 */
:root{
    --c-ink:#10161A;
    --c-ink-soft:#4A555C;
    --c-mute:#8B949A;
    --c-brand:#1E5B52;
    --c-brand-deep:#123B36;
    --c-brand-mist:#A8C7BE;
    --c-accent:#D9683A;
    --c-paper:#F6F4EF;
    --c-card:#FFFFFF;
    --c-line:#E4DFD6;
    --c-fill:#EFEBE3;
    --c-success:#2F7D5D;
    --c-warn:#B7791F;
    --c-danger:#C0392B;
    --radius-card:16px;
    --radius-img:18px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.12);
    --shadow-2:0 2px 4px rgba(16,22,26,.06), 0 18px 40px -18px rgba(16,22,26,.20);
    --ease:cubic-bezier(.2,.7,.3,1);
    --container:1180px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--c-paper);
    color:var(--c-ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    font-weight:400;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color 200ms var(--ease),background-color 200ms var(--ease),border-color 200ms var(--ease);}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
  p{margin:0 0 1.2em;}
  p:last-child{margin-bottom:0;}
  .num{font-variant-numeric:tabular-nums;}
  :focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  .section{padding:72px 0;}
  .section-tight{padding:48px 0;}

  /* ============ 通用按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;line-height:1;
    padding:0 20px;min-height:44px;border-radius:var(--radius-btn);
    transition:transform 200ms var(--ease),background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:#17504A;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{background:transparent;color:var(--c-ink);border:1px solid var(--c-line);}
  .btn-outline:hover{background:rgba(168,199,190,.22);border-color:var(--c-brand-mist);color:var(--c-brand);}
  .btn-on-dark{background:#fff;color:var(--c-brand-deep);}
  .btn-on-dark:hover{background:#F0F5F3;transform:translateY(-1px);}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-brand);
  }
  .btn-text i{transition:transform 200ms var(--ease);}
  .btn-text:hover i{transform:translateX(4px);}

  /* ============ 徽章 / 标签 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 10px;border-radius:999px;
    font-size:13px;font-weight:600;letter-spacing:.01em;
    background:rgba(168,199,190,.28);color:var(--c-brand);
  }
  .badge-accent{background:rgba(217,104,58,.12);color:var(--c-accent);}
  .badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-ink-soft);}

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    padding-top:12px;
    transition:box-shadow 200ms var(--ease),background-color 200ms var(--ease);
  }
  .nav-panel{
    display:flex;align-items:center;gap:18px;
    background:rgba(255,255,255,.94);
    border:1px solid var(--c-line);
    border-radius:18px;
    padding:10px 14px;
    box-shadow:var(--shadow-1);
    backdrop-filter:saturate(120%) blur(6px);
    transition:box-shadow 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);
  }
  .site-header.is-scrolled .nav-panel{
    background:#FFFFFF;
    border-color:var(--c-brand-mist);
    box-shadow:var(--shadow-2);
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--c-brand);color:#fff;font-size:16px;
  }
  .brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);}
  .nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;flex-wrap:wrap;}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;
    height:44px;padding:0 12px;border-radius:10px;
    font-size:14px;font-weight:500;color:var(--c-ink-soft);
    transition:background-color 200ms var(--ease),color 200ms var(--ease);
  }
  .nav-item i{font-size:13px;color:var(--c-mute);transition:color 200ms var(--ease);}
  .nav-item:hover{background:rgba(168,199,190,.22);color:var(--c-brand);}
  .nav-item:hover i{color:var(--c-brand);}
  .nav-item.active{background:rgba(168,199,190,.30);color:var(--c-brand);font-weight:600;}
  .nav-item.active i{color:var(--c-brand);}
  .nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;
    border:1px solid var(--c-line);color:var(--c-ink);
    align-items:center;justify-content:center;font-size:16px;
  }
  .nav-toggle:hover{background:rgba(168,199,190,.22);}

  /* 移动抽屉 */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(16,22,26,.4);
    opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms var(--ease);z-index:80;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);
    background:#fff;z-index:90;display:flex;flex-direction:column;
    transform:translateX(102%);transition:transform 260ms var(--ease);
    box-shadow:-12px 0 40px -20px rgba(16,22,26,.35);
  }
  .mobile-drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--c-line);}
  .drawer-head strong{font-size:15px;}
  .drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-ink);}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:18px 20px;overflow-y:auto;flex:1;}
  .drawer-grid a{
    display:flex;align-items:center;gap:8px;
    padding:12px;border-radius:12px;border:1px solid var(--c-line);
    font-size:14px;font-weight:500;color:var(--c-ink-soft);background:var(--c-paper);
  }
  .drawer-grid a i{color:var(--c-brand);font-size:13px;}
  .drawer-grid a:hover{border-color:var(--c-brand-mist);color:var(--c-brand);}
  .drawer-grid a.active{background:rgba(168,199,190,.30);color:var(--c-brand);font-weight:600;}
  .drawer-foot{padding:16px 20px 22px;border-top:1px solid var(--c-line);}
  .drawer-foot .btn{width:100%;}

  /* ============ 面包屑 ============ */
  .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-mute);padding-top:22px;flex-wrap:wrap;}
  .crumb a:hover{color:var(--c-brand);}
  .crumb .sep{color:#C9C2B6;}
  .crumb .current{color:var(--c-ink-soft);font-weight:500;}

  /* ============ 内页 Hero ============ */
  .page-hero{
    position:relative;overflow:hidden;
    padding:36px 0 56px;
  }
  .page-hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    opacity:.10;
    pointer-events:none;
  }
  .page-hero .container{position:relative;z-index:1;}
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
  .hero-eyebrow{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
  .page-hero h1{
    font-size:clamp(30px,4.2vw,46px);
    line-height:1.24;
    margin-bottom:16px;
  }
  .page-hero h1 .hl{color:var(--c-brand);}
  .hero-sub{font-size:17px;color:var(--c-ink-soft);max-width:620px;margin-bottom:24px;}
  .hero-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
  .hero-figure{
    position:relative;border-radius:var(--radius-img);overflow:hidden;
    background:var(--c-fill);box-shadow:var(--shadow-1);
    border:1px solid rgba(16,22,26,.06);
  }
  .hero-figure img{width:100%;height:320px;object-fit:cover;}
  .hero-figure figcaption{
    position:absolute;left:14px;bottom:14px;right:14px;
    background:rgba(255,255,255,.92);
    border-radius:10px;padding:10px 14px;font-size:13px;color:var(--c-ink-soft);
    backdrop-filter:blur(4px);
  }

  /* ============ 数据条 ============ */
  .stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  .stat-card{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
    padding:20px;box-shadow:var(--shadow-1);
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .stat-card .stat-top{display:flex;align-items:center;gap:8px;color:var(--c-mute);font-size:13px;margin-bottom:10px;}
  .stat-card .stat-top i{color:var(--c-brand);font-size:14px;}
  .stat-card .stat-val{font-size:30px;font-weight:700;color:var(--c-brand-deep);line-height:1.1;margin-bottom:6px;}
  .stat-card .stat-val em{font-style:normal;font-size:15px;font-weight:600;color:var(--c-accent);margin-left:2px;}
  .stat-card p{font-size:13.5px;color:var(--c-ink-soft);margin:0;}

  /* ============ 文档式双栏 ============ */
  .doc-layout{display:grid;grid-template-columns:248px 1fr;gap:44px;align-items:start;margin-top:34px;}
  .doc-aside{position:sticky;top:104px;}
  .doc-aside-title{font-size:13px;font-weight:600;color:var(--c-mute);letter-spacing:.06em;margin-bottom:12px;}
  .doc-nav{
    border-left:1px solid var(--c-line);
    display:flex;flex-direction:column;
  }
  .doc-nav a{
    display:block;
    padding:9px 0 9px 14px;
    margin-left:-1px;
    border-left:2px solid transparent;
    font-size:14px;color:var(--c-ink-soft);
    transition:color 200ms var(--ease),border-color 200ms var(--ease),background-color 200ms var(--ease);
  }
  .doc-nav a:hover{color:var(--c-brand);border-left-color:var(--c-brand-mist);}
  .doc-nav a.is-current{color:var(--c-ink);font-weight:600;border-left-color:var(--c-accent);}
  .doc-aside-card{
    margin-top:22px;padding:18px;border-radius:var(--radius-card);
    background:var(--c-card);border:1px solid var(--c-line);box-shadow:var(--shadow-1);
  }
  .doc-aside-card h3{font-size:15px;margin-bottom:8px;}
  .doc-aside-card p{font-size:13.5px;color:var(--c-ink-soft);margin-bottom:14px;}
  .doc-aside-card .btn{width:100%;}

  .doc-mobile-nav{display:none;}

  .doc-body{min-width:0;}
  .doc-section{
    padding-bottom:34px;margin-bottom:34px;
    border-bottom:1px solid var(--c-line);
    scroll-margin-top:110px;
  }
  .doc-section:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0;}
  .doc-section h2{
    font-size:clamp(22px,2.4vw,28px);
    padding-left:14px;position:relative;margin-bottom:16px;
  }
  .doc-section h2::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--c-accent);
  }
  .doc-lead{font-size:16px;color:var(--c-ink-soft);}
  .doc-section p{font-size:16.5px;color:var(--c-ink-soft);}
  .doc-section p strong{color:var(--c-ink);font-weight:600;}

  .check-list{display:grid;gap:12px;margin:20px 0 4px;}
  .check-list li{
    display:flex;gap:12px;align-items:flex-start;
    background:var(--c-card);border:1px solid var(--c-line);border-radius:12px;padding:14px 16px;
    font-size:15px;color:var(--c-ink-soft);
    transition:border-color 200ms var(--ease),transform 200ms var(--ease),box-shadow 200ms var(--ease);
  }
  .check-list li:hover{border-color:var(--c-brand-mist);transform:translateY(-2px);box-shadow:var(--shadow-1);}
  .check-list li i{color:var(--c-brand);margin-top:5px;font-size:14px;}
  .check-list li b{color:var(--c-ink);font-weight:600;}

  .doc-note{
    background:var(--c-paper);
    border-left:3px solid var(--c-brand-mist);
    border-radius:0 12px 12px 0;
    padding:16px 20px;font-size:15px;color:var(--c-ink-soft);
    margin:20px 0;
  }

  .table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:14px;background:var(--c-card);margin:20px 0 4px;}
  table.cmp{width:100%;border-collapse:collapse;min-width:640px;}
  table.cmp caption{
    text-align:left;padding:14px 18px 0;font-size:13px;color:var(--c-mute);
  }
  table.cmp th,table.cmp td{
    padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--c-line);
    vertical-align:top;color:var(--c-ink-soft);
  }
  table.cmp thead th{background:#FBFAF7;color:var(--c-ink);font-weight:600;font-size:14px;}
  table.cmp tbody tr:nth-child(even){background:#FBFAF7;}
  table.cmp tbody tr:last-child td{border-bottom:0;}
  table.cmp td:first-child{color:var(--c-ink);font-weight:600;}

  .figure-block{
    border-radius:var(--radius-img);overflow:hidden;background:var(--c-fill);
    border:1px solid var(--c-line);margin:22px 0 8px;
  }
  .figure-block img{width:100%;height:260px;object-fit:cover;}
  .figure-block figcaption{font-size:13px;color:var(--c-mute);text-align:center;padding:10px 14px;background:var(--c-card);}

  /* ============ 能力卡片 ============ */
  .cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px;}
  .cap-card{
    background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    display:flex;flex-direction:column;
    transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
  }
  .cap-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-brand-mist);}
  .cap-card img{width:100%;height:170px;object-fit:cover;background:var(--c-fill);}
  .cap-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .cap-body h3{font-size:19px;}
  .cap-body p{font-size:14.5px;color:var(--c-ink-soft);margin:0;}
  .cap-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
  .cap-meta span{font-size:13px;color:var(--c-mute);display:inline-flex;align-items:center;gap:6px;}
  .cap-meta span i{color:var(--c-brand-mist);}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start;}
  .faq-intro h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
  .faq-intro p{font-size:15.5px;color:var(--c-ink-soft);}
  .faq-list{border-top:1px solid var(--c-line);}
  .faq-item{border-bottom:1px solid var(--c-line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 4px;text-align:left;
    font-size:17px;font-weight:600;color:var(--c-ink);
    transition:color 200ms var(--ease);
  }
  .faq-q:hover{color:var(--c-brand);}
  .faq-q i{color:var(--c-brand);font-size:14px;transition:transform 240ms var(--ease);flex:0 0 auto;}
  .faq-item.is-open .faq-q i{transform:rotate(180deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height 240ms var(--ease),opacity 240ms var(--ease),padding 240ms var(--ease);
    opacity:0;padding:0 4px;
  }
  .faq-item.is-open .faq-a{opacity:1;padding:0 4px 20px;}
  .faq-a p{font-size:15px;line-height:1.85;color:var(--c-ink-soft);margin:0;}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--c-brand-deep);
    border-radius:24px;
    padding:48px 40px;
    color:#fff;
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    box-shadow:var(--shadow-2);
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
    background-size:44px 44px;
    opacity:.9;pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
  .cta-band p{font-size:15.5px;color:rgba(255,255,255,.78);margin:0;max-width:560px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
  .cta-actions .ghost{color:#fff;border:1px solid rgba(255,255,255,.28);background:transparent;}
  .cta-actions .ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.86);margin-top:72px;padding:56px 0 26px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);}
  .footer-brand strong{font-size:16px;color:#fff;}
  .footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col li{font-size:14px;color:rgba(255,255,255,.68);}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
  .footer-col a:hover{color:var(--c-brand-mist);}
  .footer-bottom{
    margin-top:38px;padding-top:18px;
    border-top:1px solid rgba(255,255,255,.10);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.56);
  }

  /* ============ 移动底部条 ============ */
  .mobile-cta-bar{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
    height:56px;background:var(--c-brand);
    align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:600;
    box-shadow:0 -8px 24px -16px rgba(16,22,26,.5);
  }
  .mobile-cta-bar:active{background:#17504A;}

  /* ============ 入场动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
  .reveal.is-in{opacity:1;transform:none;}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .nav-toggle{display:inline-flex;}
    .hero-grid{grid-template-columns:1fr;gap:28px;}
    .hero-figure img{height:260px;}
    .doc-layout{grid-template-columns:1fr;gap:0;}
    .doc-aside{position:static;display:none;}
    .doc-mobile-nav{
      display:flex;gap:8px;overflow-x:auto;padding:4px 0 14px;margin-bottom:8px;
      -webkit-overflow-scrolling:touch;scrollbar-width:none;
    }
    .doc-mobile-nav::-webkit-scrollbar{display:none;}
    .doc-mobile-nav a{
      flex:0 0 auto;padding:8px 14px;border-radius:999px;
      border:1px solid var(--c-line);background:#fff;font-size:13.5px;color:var(--c-ink-soft);
    }
    .doc-mobile-nav a.is-current{background:rgba(168,199,190,.30);border-color:var(--c-brand-mist);color:var(--c-brand);font-weight:600;}
    .cap-grid{grid-template-columns:1fr 1fr;}
    .faq-layout{grid-template-columns:1fr;gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  }
  @media (max-width:767px){
    .section{padding:52px 0;}
    .stat-strip{grid-template-columns:1fr 1fr;gap:14px;}
    .cap-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
    .footer-desc{max-width:none;}
    .mobile-cta-bar{display:flex;}
    body{padding-bottom:56px;}
    .page-hero{padding:24px 0 40px;}
    .hero-figure img{height:210px;}
    .cta-band{border-radius:20px;padding:30px 22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;}
    .brand-text{font-size:15px;}
    table.cmp{min-width:560px;}
  }
  @media (max-width:520px){
    .stat-strip{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
    .btn{padding:0 16px;}
  }
  @media (prefers-reduced-motion: reduce){
    *{transition:none !important;animation:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }