/* roulang page: index */
:root{
  --primary:#0BA678;
  --primary-deep:#077A58;
  --primary-soft:#E6F7F1;
  --accent:#FF6B2C;
  --accent-hover:#E0551A;
  --micro:#5B4BE8;
  --ink:#10161A;
  --ink-2:#5A6A72;
  --muted:#8C9AA3;
  --line:#E3E9EC;
  --bg:#F6F8F8;
  --card:#FFFFFF;
  --dark:#0E1518;
  --dark-text:#E8EEEF;
  --dark-sub:#9AABAF;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.10);
  --shadow-hover:0 16px 40px -16px rgba(16,22,26,.18);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--primary-deep)}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
table{border-collapse:collapse}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;height:72px;padding:0 20px;border-bottom:1px solid var(--line);flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary),#12C795);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:15px;letter-spacing:-.02em;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--ink)}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:2px}
.side-nav{padding:16px 12px 8px;display:flex;flex-direction:column;gap:4px}
.side-label{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.08em;padding:14px 12px 6px;text-transform:none}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
}
.side-nav a svg{flex:none;opacity:.75}
.side-nav a:hover{background:#F2F6F5;color:var(--primary-deep)}
.side-nav a:hover svg{opacity:1}
.side-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-nav a.active svg{opacity:1}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.side-foot{margin-top:auto;padding:18px 20px 22px;border-top:1px solid var(--line)}
.side-foot p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:4px}
.side-foot strong{display:block;font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums;margin-bottom:12px}
.side-foot .btn{width:100%}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;
  height:60px;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;
}
.mobile-bar .brand-text{font-size:14px}
.mobile-bar .brand-text small{font-size:10px}
.burger{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease}
.burger:hover{border-color:var(--primary)}
.burger:hover span{background:var(--primary)}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;max-width:82vw;background:#fff;z-index:90;
  transform:translateX(-100%);transition:transform .28s ease;display:flex;flex-direction:column;
  overflow-y:auto;box-shadow:0 24px 60px -24px rgba(16,22,26,.4);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 12px 0 16px;border-bottom:1px solid var(--line);flex:none}
.drawer-close{width:44px;height:44px;border:0;background:transparent;border-radius:10px;font-size:22px;line-height:1;color:var(--ink-2)}
.drawer-close:hover{background:#F2F6F5;color:var(--primary)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,21,24,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.main > .page{flex:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -10px rgba(11,166,120,.65)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(255,107,44,.75)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;border-color:#CFD9DD;color:var(--ink)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7}
.btn-dark-outline{background:transparent;border-color:rgba(232,238,239,.35);color:var(--dark-text)}
.btn-dark-outline:hover{border-color:var(--primary);color:#fff;background:rgba(11,166,120,.15)}
.btn[disabled],.btn:disabled{background:var(--line);color:var(--muted);border-color:transparent;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-outline{background:#fff;border:1px solid rgba(91,75,232,.35);color:var(--micro)}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-title{
  position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,30px);
  line-height:1.32;font-weight:600;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;
  border-radius:2px;background:var(--primary);
}
.sec-lead{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:640px}
.sec-head{margin-bottom:44px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;border-bottom:1px solid transparent;padding-bottom:2px}
.link-arrow:hover{border-bottom-color:var(--primary-deep)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F1FAF6 0%,#F6F8F8 78%,#F6F8F8 100%);
  padding:64px 0 0;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,22,26,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,22,26,.035) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 70%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 70%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-block;margin-bottom:18px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--primary-deep);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}
.hero h1{
  font-size:clamp(30px,5vw,48px);line-height:1.2;letter-spacing:-.01em;font-weight:700;
  max-width:16em;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.hero-points li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;background:var(--primary)}
.hero-visual{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px -30px rgba(16,22,26,.35);aspect-ratio:16/11;background:#fff}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,21,24,0) 45%,rgba(14,21,24,.42) 100%)}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:12px;padding:12px 18px;
  display:flex;flex-direction:column;gap:2px;
}
.hero-chip .num{font-size:22px;font-weight:700;color:var(--primary-deep);line-height:1.2}
.hero-chip span:last-child{font-size:12.5px;color:var(--ink-2)}
.statbar{
  position:relative;z-index:1;margin-top:56px;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transform:translateY(0);
}
.statbar div{padding:24px 26px;border-right:1px solid var(--line)}
.statbar div:last-child{border-right:0}
.stat-num{font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--ink);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num em{font-style:normal;font-size:.6em;font-weight:600;color:var(--primary);margin-left:2px}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 痛点区 ---------- */
.pain{background:#F6F8F8}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:8px}
.pain-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 26px 24px;box-shadow:var(--shadow-card);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.pain-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#D6E3E0}
.pain-icon{
  flex:none;width:42px;height:42px;border-radius:11px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--primary-deep);
}
.pain-item h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:6px}
.pain-item p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- 解决方案 ---------- */
.solution{background:#fff}
.sol-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.sol-side{position:sticky;top:96px}
.sol-side p{margin-top:16px;font-size:15.5px;color:var(--ink-2)}
.sol-side .link-arrow{margin-top:22px}
.sol-list{border-top:1px solid var(--line)}
.sol-item{
  display:flex;gap:20px;align-items:flex-start;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:padding-left .22s ease;
}
.sol-item:hover{padding-left:6px}
.sol-idx{
  flex:none;font-size:14px;font-weight:700;color:var(--primary);letter-spacing:.04em;
  font-variant-numeric:tabular-nums;padding-top:4px;min-width:30px;
}
.sol-body{flex:1}
.sol-body h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:8px}
.sol-body p{font-size:14.5px;line-height:1.8;color:var(--ink-2);max-width:44em}
.sol-thumb{
  flex:none;width:104px;height:78px;border-radius:10px;overflow:hidden;
  border:1px solid var(--line);background:#F6F8F8;
}
.sol-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.sol-item:hover .sol-thumb img{transform:scale(1.06)}

/* ---------- 成果带 ---------- */
.results{background:var(--dark);color:var(--dark-text);padding:80px 0}
.results .sec-title{color:#fff}
.results .sec-title::before{background:var(--primary)}
.results-lead{margin-top:14px;font-size:15.5px;color:var(--dark-sub);max-width:600px}
.results-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:52px;
}
.result-cell{padding:0 28px;border-left:1px solid rgba(232,238,239,.14)}
.result-cell:first-child{border-left:0;padding-left:0}
.result-cell .num{font-size:clamp(32px,4vw,52px);font-weight:700;line-height:1.1;color:#fff}
.result-cell .num em{font-style:normal;font-size:.5em;color:var(--primary);margin-left:2px;font-weight:600}
.result-cell h3{margin-top:12px;font-size:16px;font-weight:600;color:#fff}
.result-cell p{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--dark-sub)}

/* ---------- 证言区 ---------- */
.voice{background:#F6F8F8}
.voice-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.voice-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px 40px 34px;position:relative;box-shadow:var(--shadow-card);
}
.voice-main::before{content:"";position:absolute;left:40px;top:30px;width:34px;height:3px;border-radius:2px;background:var(--primary)}
.voice-main blockquote{margin:26px 0 0;font-size:17px;line-height:1.9;color:var(--ink)}
.voice-side{display:flex;flex-direction:column;gap:24px}
.voice-small{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px 22px;box-shadow:var(--shadow-card);flex:1;
  transition:box-shadow .22s ease,transform .22s ease;
}
.voice-small:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.voice-small blockquote{margin:0;font-size:14.8px;line-height:1.8;color:var(--ink-2)}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:20px}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-deep);font-weight:700;font-size:14px;
}
.avatar.v2{background:#EEF0FE;color:var(--micro)}
.avatar.v3{background:#FFF0E8;color:var(--accent-hover)}
.voice-meta cite{font-style:normal;font-size:14px;font-weight:600;color:var(--ink);display:block;line-height:1.4}
.voice-meta span{font-size:12.5px;color:var(--muted)}

/* ---------- 最新信息 ---------- */
.news{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;color:inherit;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#D6E3E0;color:inherit}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDF2F1}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3{color:var(--primary-deep)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--ink-2);flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:64px 24px;background:#fff;border:1px dashed #D6E0E2;border-radius:var(--radius-card);
  text-align:center;
}
.empty-state svg{color:#C3D0D3}
.empty-state p{font-size:14px;color:var(--muted)}
.skeleton{background:linear-gradient(90deg,#EFF3F3 25%,#E6ECEC 37%,#EFF3F3 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- FAQ ---------- */
.faq{background:#F6F8F8}
.faq-list{margin-top:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background-color .2s ease}
.faq-item.open::before{background:var(--primary)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--primary-deep)}
.faq-mark{flex:none;position:relative;width:16px;height:16px}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease;
}
.faq-mark::before{left:0;top:7px;width:16px;height:2px}
.faq-mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-mark::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:56em}

/* ---------- 结尾 CTA ---------- */
.cta{background:var(--dark);color:var(--dark-text);padding:80px 0;border-left:4px solid var(--primary)}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.cta h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;color:#fff}
.cta p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--dark-sub)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-form{background:rgba(255,255,255,.05);border:1px solid rgba(232,238,239,.14);border-radius:var(--radius-card);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--dark-text);letter-spacing:.02em}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(232,238,239,.24);background:rgba(255,255,255,.06);
  color:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;font-family:inherit}
.field input::placeholder,.field textarea::placeholder{color:#7E9095}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(11,166,120,.22);
}
.form-note{font-size:12.5px;color:var(--dark-sub);margin-top:12px}
.form-msg{margin-top:14px;font-size:14px;padding:10px 14px;border-left:3px solid var(--primary);background:rgba(11,166,120,.12);border-radius:0 8px 8px 0;color:#DFF6EE;display:none}
.form-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-sub);padding:64px 0 0;border-top:1px solid rgba(232,238,239,.08)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .brand-text{color:#fff}
.foot-brand .brand-text small{color:var(--dark-sub)}
.foot-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:26em}
.foot-contact{margin-top:18px;font-size:14px;line-height:1.9}
.foot-contact strong{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--dark-sub);border-bottom:1px solid transparent}
.foot-col a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5)}
.foot-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(232,238,239,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
}
.foot-bottom a{color:var(--dark-sub)}
.foot-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;padding:0 28px}
  .sol-grid{gap:40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .mobile-bar{display:flex}
  .main{margin-left:0}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero{padding-top:44px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero h1{max-width:none}
  .statbar{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .statbar div:nth-child(2){border-right:0}
  .statbar div:nth-child(1),.statbar div:nth-child(2){border-bottom:1px solid var(--line)}
  .pain-grid{grid-template-columns:1fr 1fr;gap:18px}
  .sol-grid{grid-template-columns:1fr;gap:32px}
  .sol-side{position:static}
  .results-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .result-cell:nth-child(odd){border-left:0;padding-left:0}
  .result-cell{padding-right:20px}
  .voice-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{padding-top:32px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .pain-grid{grid-template-columns:1fr}
  .pain-item{padding:22px}
  .sol-item{gap:14px;padding:22px 0}
  .sol-thumb{display:none}
  .results{padding:56px 0}
  .results-grid{grid-template-columns:1fr;gap:28px}
  .result-cell{border-left:0;padding:0;border-top:1px solid rgba(232,238,239,.14);padding-top:20px}
  .result-cell:first-child{border-top:0;padding-top:0}
  .voice-main{padding:32px 24px 28px}
  .voice-main::before{left:24px}
  .news-grid{grid-template-columns:1fr}
  .faq-q{padding:18px 20px;font-size:15.2px}
  .faq-a-inner{padding:0 20px 20px}
  .cta{padding:56px 0}
  .cta-form{padding:22px}
  .form-row{grid-template-columns:1fr;gap:0}
  .cta-actions .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .statbar{grid-template-columns:1fr}
  .statbar div{border-right:0;border-bottom:1px solid var(--line)}
  .statbar div:last-child{border-bottom:0}
  .hero-chip{padding:10px 14px}
  .hero-chip .num{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --primary:#0BA678;
  --primary-deep:#077A58;
  --primary-soft:#E6F7F1;
  --accent:#FF6B2C;
  --accent-deep:#E0551A;
  --micro:#5B4BE8;
  --text:#10161A;
  --text-2:#5A6A72;
  --text-3:#8C9AA3;
  --border:#E3E9EC;
  --bg:#F6F8F8;
  --card:#FFFFFF;
  --dark:#0E1518;
  --dark-text:#E8EEEF;
  --dark-2:#9AABAF;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.10);
  --shadow-2:0 16px 40px -16px rgba(16,22,26,.18);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--primary-deep)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.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}

/* ============ 布局骨架 ============ */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 40px}
.topbar{display:none}
.drawer-mask{display:none}

/* ============ 侧边栏 ============ */
.sidebar{
  position:fixed;left:0;top:0;width:var(--sidebar-w);height:100vh;
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  z-index:60;overflow-y:auto;
}
.brand{
  height:72px;flex:none;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--border);
  color:var(--text);text-decoration:none;
}
.brand-mark{
  width:32px;height:32px;flex:none;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;font-size:15px;font-weight:700;line-height:1.25;letter-spacing:.01em}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.04em;margin-top:2px}
.side-nav{display:flex;flex-direction:column;gap:4px;padding:16px 12px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:8px;
  font-size:14.5px;color:var(--text-2);text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.side-nav a svg{flex:none;color:var(--text-3);transition:color .18s ease}
.side-nav a:hover{background:#F2F6F6;color:var(--text)}
.side-nav a:hover svg{color:var(--primary)}
.side-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-nav a.active svg{color:var(--primary)}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.side-label{padding:14px 12px 6px;font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.side-foot{margin-top:auto;padding:18px 20px 22px;border-top:1px solid var(--border)}
.side-foot p{font-size:13px;line-height:1.7;color:var(--text-3);margin-bottom:6px}
.side-foot strong{display:block;font-size:17px;color:var(--text);letter-spacing:.02em;margin-bottom:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(11,166,120,.6)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(255,107,44,.6)}
.btn-accent:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:#CFD9DD;color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7}
.btn-block{width:100%}
.btn:disabled{background:var(--border);color:var(--text-3);cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:12.5px;font-weight:600;line-height:1.5;
}
.taglist{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--border);background:#fff;
  font-size:13px;color:var(--text-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7}

/* ============ 文章头部 ============ */
.art-head{
  position:relative;overflow:hidden;
  padding:36px 0 44px;
  background:
    linear-gradient(180deg,rgba(246,248,248,.94),rgba(246,248,248,.99)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--border);
}
.art-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,22,26,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(16,22,26,.045) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;
}
.art-head .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--primary)}
.crumb .now{color:var(--text);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-head h1{
  font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;
  letter-spacing:-.01em;max-width:22ch;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:14px;color:var(--text-3)}
.meta-row .sep{width:1px;height:14px;background:var(--border)}
.backline{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:14px;color:var(--text-2)}
.backline:hover{color:var(--primary)}

/* ============ 正文布局 ============ */
.art-wrap{padding:56px 0 72px}
.art-layout{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:48px;align-items:start}
.art-main{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:44px 48px}
.article-body{font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(21px,2.2vw,26px);font-weight:600;line-height:1.4;
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:18px;border-radius:2px;background:var(--primary)}
.article-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:32px 0 12px}
.article-body h4{font-size:16px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:24px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:24px 0;padding:20px 20px 20px 22px;
  background:var(--bg);border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(11,166,120,.35)}
.article-body a:hover{color:var(--primary-deep);border-bottom-color:var(--primary-deep)}
.article-body strong{font-weight:600}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left;vertical-align:top}
.article-body thead th{background:#F1F5F5;font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAFCFC}
.article-body pre{
  margin:24px 0;padding:16px 18px;background:var(--bg);
  border:1px solid var(--border);border-radius:10px;overflow:auto;
  font-size:13px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:var(--primary-soft);color:var(--primary-deep);
  padding:2px 6px;border-radius:5px;
}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0}

/* ============ 空态 ============ */
.empty-state{
  padding:64px 32px;text-align:center;background:var(--bg);
  border:1px dashed #CFD9DD;border-radius:var(--r-card);
}
.empty-state svg{color:var(--text-3);margin:0 auto 16px}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:20px}

/* ============ 文章尾部 ============ */
.art-foot{margin-top:36px;padding-top:28px;border-top:1px solid var(--border)}
.art-foot .row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.art-foot .row + .row{margin-top:24px}
.art-foot .label{font-size:13px;color:var(--text-3);margin-bottom:10px}
.share{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.share button,.share a{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--border);
  background:#fff;color:var(--text-2);font-size:13px;cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.share button:hover,.share a:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7}
.art-return{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.art-return a{font-size:14px;display:inline-flex;align-items:center;gap:6px}

/* ============ 相关推荐 ============ */
.related{padding:0 0 72px}
.sec-h{display:flex;align-items:center;gap:12px;font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.32;margin-bottom:28px}
.sec-h::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--primary);flex:none}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);color:inherit;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D3DEE2;color:inherit}
.rel-thumb{aspect-ratio:4/3;overflow:hidden;background:#E9EFEF}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-top:auto}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:24px;position:sticky;top:32px}
.panel{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:22px}
.panel h3{font-size:16px;font-weight:600;margin-bottom:14px}
.rank li + li{border-top:1px solid var(--border)}
.rank a{display:flex;gap:12px;padding:14px 0;color:var(--text);font-size:14.5px;line-height:1.6}
.rank a:hover{color:var(--primary)}
.rank .no{font-size:15px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;flex:none;width:20px}
.contact-panel{background:var(--primary-soft);border-color:#CDEDE1;box-shadow:none}
.contact-panel h3{font-size:16px;font-weight:600;color:var(--primary-deep)}
.contact-panel p{font-size:13.5px;line-height:1.75;color:#3D6A5C;margin-bottom:16px}
.contact-panel .phone{font-size:19px;font-weight:700;color:var(--primary-deep);letter-spacing:.02em;margin-bottom:14px}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;background:var(--dark);color:var(--dark-text);
  padding:56px 0 60px;
}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary)}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;color:#fff;line-height:1.35;max-width:20ch}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--dark-2);max-width:44ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(232,238,239,.35);color:#fff}
.cta-band .btn-ghost:hover{border-color:var(--primary);color:#fff;background:rgba(11,166,120,.18)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-2);margin-top:auto;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{height:auto;padding:0;border:0;margin-bottom:18px}
.foot-brand .brand-text{color:#fff}
.foot-brand .brand-text small{color:var(--dark-2)}
.foot-brand p{font-size:14px;line-height:1.8;margin-bottom:18px;color:var(--dark-2)}
.foot-contact{font-size:14px;line-height:1.9;color:var(--dark-2)}
.foot-contact strong{color:#fff;font-size:16px;letter-spacing:.02em}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--dark-2);border-bottom:1px solid transparent}
.foot-col a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.5)}
.foot-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(227,233,236,.14);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--dark-2);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .art-layout{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .main{margin-left:0}
  .container{padding:0 28px}
  .sidebar{
    width:280px;max-width:82vw;transform:translateX(-100%);
    transition:transform .28s ease;box-shadow:0 20px 60px -20px rgba(14,21,24,.5);
  }
  .sidebar.open{transform:translateX(0)}
  .drawer-mask{
    display:block;position:fixed;inset:0;z-index:55;
    background:rgba(14,21,24,.45);
    opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  }
  .drawer-mask.open{opacity:1;visibility:visible}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;height:60px;z-index:50;
    background:#fff;border-bottom:1px solid var(--border);padding:0 16px;
  }
  .topbar .brand{height:60px;padding:0;border:0;gap:8px}
  .topbar .brand-text{font-size:14px}
  .burger{
    width:44px;height:44px;display:grid;place-items:center;
    border:1px solid var(--border);border-radius:10px;background:#fff;
    cursor:pointer;color:var(--text);transition:border-color .18s ease,color .18s ease;
  }
  .burger:hover{border-color:var(--primary);color:var(--primary)}
  .art-head h1{max-width:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .art-main{padding:32px 26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .art-head{padding:24px 0 32px}
  .crumb .now{max-width:18ch}
  .art-wrap{padding:36px 0 48px}
  .art-main{padding:24px 18px;border-radius:12px}
  .article-body{font-size:16.5px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .rel-thumb{aspect-ratio:16/9}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .side-col{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:44px 0 48px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .art-head h1{font-size:26px}
  .meta-row{gap:8px;font-size:13px}
  .sec-h{font-size:22px}
  .btn{padding:12px 18px;font-size:14.5px}
}

/* roulang page: category1 */
:root{
  --primary:#0BA678;
  --primary-deep:#077A58;
  --primary-soft:#E6F7F1;
  --accent:#FF6B2C;
  --accent-deep:#E0551A;
  --micro:#5B4BE8;
  --ink:#10161A;
  --ink-2:#5A6A72;
  --ink-3:#8C9AA3;
  --line:#E3E9EC;
  --line-2:#D8E0E3;
  --bg:#F6F8F8;
  --card:#FFFFFF;
  --dark:#0E1518;
  --dark-text:#E8EEEF;
  --dark-sub:#9AABAF;
  --err:#D93A2B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,22,26,.04),0 8px 24px -12px rgba(16,22,26,.10);
  --sh-card-hover:0 16px 40px -16px rgba(16,22,26,.18);
  --w-side:240px;
  --max:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--primary-deep);text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 布局骨架 ============ */
.shell{margin-left:var(--w-side);min-height:100vh;display:flex;flex-direction:column}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.main{flex:1 1 auto}

/* ============ 侧边导航 ============ */
.side{
  position:fixed;left:0;top:0;width:var(--w-side);height:100vh;height:100dvh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:80;overflow-y:auto;
  transition:transform .26s ease;
}
.side-top{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--line);flex:0 0 auto}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  box-shadow:0 6px 16px -8px rgba(11,166,120,.75);
}
.brand-text{font-size:15px;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--ink-3);letter-spacing:.02em}
.side-close{display:none;width:44px;height:44px;font-size:24px;line-height:1;color:var(--ink-2);border-radius:10px}
.side-close:hover{background:var(--bg);color:var(--ink)}
.side-nav{padding:18px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.side-nav a{
  display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:8px;
  color:var(--ink-2);font-size:14.5px;font-weight:500;position:relative;text-decoration:none;
  transition:background-color .18s ease,color .18s ease;
}
.side-nav a svg{flex:0 0 18px;color:var(--ink-3);transition:color .18s ease}
.side-nav a:hover{background:var(--bg);color:var(--ink)}
.side-nav a:hover svg{color:var(--primary)}
.side-nav a:hover{text-decoration:none}
.side-nav a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600}
.side-nav a.active svg{color:var(--primary)}
.side-nav a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--primary)}
.side-label{display:block;padding:18px 12px 8px;font-size:12px;color:var(--ink-3);letter-spacing:.08em}
.side-foot{flex:0 0 auto;padding:18px 16px 22px;border-top:1px solid var(--line);background:#FBFCFC}
.side-foot-tip{font-size:12.5px;color:var(--ink-3);margin-bottom:8px}
.side-foot-phone{display:block;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;font-variant-numeric:tabular-nums}
.side-foot-phone:hover{color:var(--primary-deep);text-decoration:none}
.side-foot-time{display:block;font-size:12.5px;color:var(--ink-3);margin:4px 0 14px}

/* ============ 移动顶栏 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:60px;background:#fff;
  border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:0 14px;
}
.burger{width:44px;height:44px;border-radius:10px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:19px;height:2px;border-radius:2px;background:var(--ink)}
.burger:hover{background:var(--bg)}
.overlay{position:fixed;inset:0;background:rgba(14,21,24,.42);opacity:0;pointer-events:none;transition:opacity .26s ease;z-index:75}
.overlay.open{opacity:1;pointer-events:auto}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;text-decoration:none;transition:all .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(11,166,120,.9)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(7,122,88,.95)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(255,107,44,.95)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-deep);background:#F2FBF7;text-decoration:none}
.btn-ghost-light{background:transparent;border-color:rgba(232,238,239,.35);color:var(--dark-text)}
.btn-ghost-light:hover{border-color:var(--primary);color:#fff;background:rgba(11,166,120,.18);text-decoration:none}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{background:var(--line);color:var(--ink-3);box-shadow:none;cursor:not-allowed;transform:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary-deep);
  font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);line-height:1.5;
}
.badge-outline{background:transparent;border:1px solid var(--line-2);color:var(--ink-2);font-weight:500}
.tag{display:inline-flex;align-items:center;font-size:12.5px;color:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 10px;background:#fff}

/* ============ 面包屑 ============ */
.crumb{padding:26px 0 0;font-size:13px;color:var(--ink-3)}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--line-2)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--primary-deep)}
.crumb .cur{color:var(--ink)}

/* ============ 页头 Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:38px 0 68px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(rgba(246,248,248,.93),rgba(246,248,248,.97)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  z-index:0;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(16,22,26,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,22,26,.035) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.hero-copy h1{font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em;margin:16px 0 0}
.hero-copy .hero-sub{margin-top:16px;font-size:16.5px;color:var(--ink-2);max-width:520px}
.hero-points{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-card)}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;background:rgba(14,21,24,.72);color:#fff;
  font-size:12.5px;padding:6px 12px;border-radius:var(--r-pill);
}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section-alt{background:#fff}
.section-soft{background:var(--bg)}
.sec-head{max-width:720px}
.sec-head h2{
  position:relative;padding-left:16px;font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:600;
}
.sec-head h2::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;border-radius:2px;background:var(--primary)}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px}
.sec-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-head-split .link-more{font-size:14px;font-weight:600;white-space:nowrap}

/* ============ 编号竖列 ============ */
.num-list{margin-top:44px}
.num-item{position:relative;display:grid;grid-template-columns:31px 1fr;gap:20px;padding-bottom:34px}
.num-item:last-child{padding-bottom:0}
.num-item:not(:last-child)::after{content:"";position:absolute;left:15px;top:36px;bottom:0;width:1px;background:var(--line)}
.num-item .num{
  width:31px;height:31px;border-radius:50%;background:var(--primary-soft);color:var(--primary-deep);
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
  font-variant-numeric:tabular-nums;border:1px solid #CFEDE1;
}
.num-item h3{font-size:18px;font-weight:600;line-height:1.4}
.num-item p{margin-top:8px;color:var(--ink-2);font-size:15px}
.num-item .mini-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}

/* ============ 场景卡 ============ */
.scene-grid{margin-top:44px;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-card-hover);border-color:#CFEDE1}
.scene-media{aspect-ratio:16/9;overflow:hidden}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.scene-body{padding:22px 22px 26px}
.scene-body h3{font-size:18px;font-weight:600;margin-top:12px}
.scene-body p{margin-top:10px;color:var(--ink-2);font-size:14.5px}

/* ============ 步骤带 ============ */
.step-strip{
  margin-top:44px;display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.step{padding:28px 26px;position:relative}
.step+.step{border-left:1px solid var(--line)}
.step .step-no{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.step h3{margin-top:10px;font-size:17.5px;font-weight:600}
.step p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}

/* ============ 深色数据带 ============ */
.dark-band{background:var(--dark);color:var(--dark-text);padding:76px 0}
.dark-band .sec-head h2{color:#fff}
.dark-band .sec-head h2::before{background:var(--primary)}
.dark-band .sec-head p{color:var(--dark-sub)}
.metric-row{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:6px 24px}
.metric+.metric{border-left:1px solid rgba(232,238,239,.14)}
.metric .m-label{font-size:13px;color:var(--dark-sub);letter-spacing:.04em}
.metric .m-value{margin-top:10px;font-size:clamp(20px,2vw,26px);font-weight:700;color:#fff;line-height:1.3}
.metric .m-desc{margin-top:10px;font-size:13.5px;color:var(--dark-sub)}

/* ============ FAQ ============ */
.faq-wrap{margin-top:40px;max-width:880px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease}
.faq-item.open{border-color:#CFEDE1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background-color .18s ease,color .18s ease;
}
.faq-q:hover{background:#F6FBF9}
.faq-item.open .faq-q{color:var(--primary-deep)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 20px 20px;border-left:3px solid var(--primary);margin-left:20px;padding-left:16px;color:var(--ink-2);font-size:15px}

/* ============ 分类胶囊互链 ============ */
.pill-row{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-2);background:#fff;color:var(--ink-2);font-size:14.5px;font-weight:500;
  transition:all .18s ease;
}
.pill:hover{border-color:var(--primary);color:var(--primary-deep);background:#F2FBF7;text-decoration:none;transform:translateY(-1px)}
.pill.current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.pill.current:hover{transform:none}

/* ============ CTA 带 ============ */
.cta-band{background:var(--dark);color:var(--dark-text);padding:64px 0;position:relative}
.cta-band::before{content:"";position:absolute;left:32px;top:64px;bottom:64px;width:4px;border-radius:2px;background:var(--primary)}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding-left:26px}
.cta-inner h2{font-size:clamp(22px,2.4vw,28px);line-height:1.34;font-weight:600;color:#fff}
.cta-inner p{margin-top:12px;color:var(--dark-sub);font-size:15px}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.form-card{background:#141D21;border:1px solid rgba(232,238,239,.12);border-radius:var(--r-card);padding:24px}
.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.field label{display:block;font-size:13px;font-weight:600;color:#C6D3D6;margin-bottom:6px}
.field input,.field select{
  width:100%;height:46px;padding:0 12px;border-radius:var(--r-btn);
  border:1px solid rgba(232,238,239,.2);background:#0E1518;color:#fff;font-size:14.5px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input::placeholder{color:#7C8C90}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,166,120,.22)}
.form-note{margin-top:12px;font-size:12.5px;color:var(--dark-sub)}
.form-actions{margin-top:18px}
.form-msg{margin-top:14px;display:none;font-size:13.5px;padding:10px 14px;border-radius:8px;border-left:3px solid var(--primary);background:rgba(11,166,120,.14);color:#D6F5EA}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-sub);padding:64px 0 26px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{color:#fff}
.foot-brand .brand:hover{color:#fff;text-decoration:none}
.foot-brand .brand-text{color:#fff;font-size:16px}
.foot-brand .brand-text small{color:var(--dark-sub)}
.foot-brand p{margin-top:16px;max-width:360px;line-height:1.85;font-size:13.8px}
.foot-contact{margin-top:16px;font-size:13.8px;line-height:1.9}
.foot-contact strong{color:#fff;font-variant-numeric:tabular-nums}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--dark-sub);font-size:13.8px}
.foot-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(232,238,239,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E8E92;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--max:1080px}
  .metric-row{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .metric:nth-child(3){border-left:0}
  .metric{padding:6px 20px}
}
@media (max-width:1023px){
  :root{--w-side:288px}
  .shell{margin-left:0}
  .topbar{display:flex}
  .side{transform:translateX(-100%);width:280px;max-width:82vw;box-shadow:none}
  .side.open{transform:translateX(0);box-shadow:0 24px 60px -20px rgba(16,22,26,.45)}
  .side-close{display:flex;align-items:center;justify-content:center}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy .hero-sub{max-width:none}
  .scene-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding-left:22px}
  .cta-band::before{left:24px;top:56px;bottom:56px}
  .form-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .page-hero{padding:26px 0 52px}
  .scene-grid{grid-template-columns:1fr}
  .step-strip{grid-template-columns:1fr}
  .step+.step{border-left:0;border-top:1px solid var(--line)}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .metric+.metric{border-left:0}
  .metric{padding:6px 0}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .crumb{padding-top:18px}
}
@media (max-width:479px){
  .metric-row{grid-template-columns:1fr;row-gap:26px}
  .metric{padding:0}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column}
  .btn{padding:12px 20px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --primary:#0BA678;
  --primary-deep:#077A58;
  --primary-soft:#E6F7F1;
  --accent:#FF6B2C;
  --accent-deep:#E0551A;
  --micro:#5B4BE8;
  --text:#10161A;
  --text-2:#5A6A72;
  --text-3:#8C9AA3;
  --border:#E3E9EC;
  --border-strong:#CFD9DD;
  --bg:#F6F8F8;
  --card:#FFFFFF;
  --dark:#0E1518;
  --dark-2:#131C20;
  --dark-text:#E8EEEF;
  --dark-text-2:#9AABAF;
  --err:#D93A2B;
  --ok:#0BA678;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,22,26,.04), 0 8px 24px -12px rgba(16,22,26,.10);
  --sh-hover:0 16px 40px -16px rgba(16,22,26,.18);
  --side:240px;
  --sect:88px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--primary-deep)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
strong{font-weight:600}
time{font-variant-numeric:tabular-nums}

/* ============ 侧边导航（App Shell） ============ */
.sidebar{
  position:fixed;top:0;left:0;width:var(--side);height:100vh;
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:60;
}
.side-head{
  height:72px;flex:0 0 72px;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--border);
}
.brand-mark{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.22;letter-spacing:.01em}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:0;margin-top:2px}
.side-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:8px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
}
.side-nav a svg{flex:0 0 auto;color:var(--text-3);transition:color .18s ease}
.side-nav a:hover{background:var(--bg);color:var(--text)}
.side-nav a:hover svg{color:var(--primary)}
.side-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.side-nav a.active svg{color:var(--primary)}
.side-nav a.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--primary);
}
.side-label{
  margin:16px 12px 6px;font-size:12px;font-weight:600;
  color:var(--text-3);letter-spacing:.08em;
}

/* ============ 移动端顶部栏与抽屉 ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--border);
  align-items:center;justify-content:space-between;padding:0 14px;
}
.hamburger{
  width:44px;height:44px;border:0;background:transparent;border-radius:10px;
  display:grid;place-items:center;color:var(--text);
}
.hamburger:hover{background:var(--bg)}
.drawer{
  position:fixed;top:0;left:0;height:100%;width:280px;max-width:82vw;z-index:90;
  background:#fff;display:flex;flex-direction:column;
  transform:translateX(-100%);transition:transform .28s ease;
  box-shadow:0 24px 60px -20px rgba(16,22,26,.35);
}
.drawer.open{transform:translateX(0)}
.drawer-head{
  height:60px;flex:0 0 60px;display:flex;align-items:center;justify-content:space-between;
  padding:0 8px 0 16px;border-bottom:1px solid var(--border);
}
.drawer-close{
  width:44px;height:44px;border:0;background:transparent;border-radius:10px;
  display:grid;place-items:center;color:var(--text-2);
}
.drawer-close:hover{background:var(--bg);color:var(--text)}
.overlay{
  position:fixed;inset:0;z-index:80;background:rgba(14,21,24,.45);
  backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.overlay.open{opacity:1;visibility:visible}
body.no-scroll{overflow:hidden}

/* ============ 主内容区 ============ */
.main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 32px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -12px rgba(11,166,120,.9)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(7,122,88,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,44,.95)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-deep);background:#F2FBF7}
.btn-ghost-light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.42);color:#E8EEEF}
.btn-ghost-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.14)}
.btn[disabled],.btn.is-disabled{background:#E3E9EC;color:#8C9AA3;border-color:#E3E9EC;cursor:not-allowed;box-shadow:none;transform:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);
}
.tag{
  display:inline-flex;align-items:center;
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  font-size:12.5px;padding:4px 10px;border-radius:var(--r-pill);
}

/* ============ 分类页首屏 ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:#0E1518 url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(14,21,24,.94) 0%,rgba(14,21,24,.80) 50%,rgba(14,21,24,.56) 100%);
}
.cat-hero-inner{position:relative;z-index:1;padding:56px 0 52px;max-width:840px}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(232,238,239,.72);margin-bottom:22px;
}
.crumb a{color:rgba(232,238,239,.78)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(232,238,239,.4)}
.crumb .cur{color:#fff}
.cat-hero h1{
  color:#fff;font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;
  letter-spacing:-.01em;margin-bottom:16px;
}
.cat-hero .lead{
  color:rgba(232,238,239,.86);font-size:17px;line-height:1.8;max-width:720px;margin-bottom:18px;
}
.cat-hero .desc{
  color:rgba(232,238,239,.7);font-size:15px;line-height:1.85;max-width:740px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px}
.hero-facts span{
  border:1px solid rgba(255,255,255,.22);border-radius:var(--r-pill);
  color:rgba(232,238,239,.9);font-size:13px;padding:5px 12px;
}

/* ============ 分类互链胶囊 ============ */
.pill-bar{background:#fff;border-bottom:1px solid var(--border)}
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;padding:16px 0}
.pill-nav a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:#fff;
  color:var(--text-2);font-size:14px;font-weight:500;
}
.pill-nav a:hover{border-color:var(--primary);color:var(--primary-deep);background:#F2FBF7}
.pill-nav a.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ============ 通用板块 ============ */
.section{padding:var(--sect) 0}
.section.alt{background:#fff}
.section.dark{background:var(--dark)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:600;color:var(--text);
}
.sec-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:2px;background:var(--primary);
}
.sec-lead{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.dark .sec-title{color:#fff}
.dark .sec-lead{color:var(--dark-text-2)}

/* ============ 非对称图文 + 编号竖列 ============ */
.split{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.split-aside{position:sticky;top:96px}
.split-aside h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:600;padding-left:16px;position:relative}
.split-aside h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:2px;background:var(--primary);
}
.split-aside p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85}
.num-list{border-left:1px solid var(--border);padding-left:28px}
.num-item{position:relative;padding:0 0 30px}
.num-item:last-child{padding-bottom:0}
.num-item::before{
  content:"";position:absolute;left:-34px;top:8px;width:11px;height:11px;
  border-radius:50%;background:#fff;border:2px solid var(--primary);
}
.num-index{
  display:block;font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.08em;font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.num-item h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:8px}
.num-item p{color:var(--text-2);font-size:15px;line-height:1.8}

/* ============ 时间轴流程 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:11px;height:2px;
  background:linear-gradient(90deg,var(--primary) 0%,var(--border) 100%);
}
.tl-item{position:relative;padding-top:48px}
.tl-item::before{
  content:"";position:absolute;top:0;left:0;width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);box-shadow:0 0 0 6px #fff;
}
.tl-item::after{
  content:"";position:absolute;top:8px;left:8px;width:8px;height:8px;border-radius:50%;background:var(--primary);
}
.tl-step{
  font-size:12.5px;font-weight:700;color:var(--text-3);letter-spacing:.1em;
  font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.tl-item h3{font-size:17.5px;font-weight:600;line-height:1.4;margin-bottom:8px}
.tl-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 深色数据带 ============ */
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;
}
.stat{padding:8px 26px;border-left:1px solid rgba(255,255,255,.14)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:clamp(40px,5vw,64px);font-weight:700;line-height:1.1;
  color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num span{font-size:.42em;font-weight:600;margin-left:6px;color:var(--dark-text-2);letter-spacing:0}
.stat-label{color:#fff;font-size:15px;font-weight:600;margin-top:12px}
.stat-desc{color:var(--dark-text-2);font-size:13.5px;line-height:1.7;margin-top:6px}

/* ============ 场景错位卡片 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D5E3DF}
.scene-a{grid-column:1 / 8;grid-row:1 / 3}
.scene-b{grid-column:8 / 13;grid-row:1 / 2}
.scene-c{grid-column:8 / 13;grid-row:2 / 3}
.scene-media{position:relative;overflow:hidden;background:var(--bg)}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.scene-a .scene-media{aspect-ratio:16 / 9}
.scene-b .scene-media,.scene-c .scene-media{aspect-ratio:16 / 9}
.scene-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{font-size:18px;font-weight:600;line-height:1.42}
.scene-body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:4px}

/* ============ FAQ ============ */
.faq{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden}
.faq-item{border-top:1px solid var(--border);transition:box-shadow .2s ease}
.faq-item:first-child{border-top:0}
.faq-item.open{box-shadow:inset 3px 0 0 var(--primary)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q:hover{color:var(--primary-deep)}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 结尾 CTA 带 ============ */
.cta-band{background:var(--dark);position:relative;padding:64px 0}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary)}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-text h2{
  color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.34;font-weight:600;margin-bottom:14px;
}
.cta-text p{color:var(--dark-text-2);font-size:15.5px;line-height:1.85;margin-bottom:22px;max-width:480px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-form{
  background:var(--dark-2);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-card);
  padding:26px 26px 28px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:#DDE6E8;margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:#fff;
  font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#7D8F94}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(11,166,120,.18);
}
.form-note{font-size:13px;color:var(--dark-text-2);line-height:1.7;margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);border-top:1px solid rgba(255,255,255,.08);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.foot-brand .brand-text{color:#fff}
.foot-brand p{color:var(--dark-text-2);font-size:14px;line-height:1.85;max-width:380px}
.foot-contact{margin-top:18px;color:#C6D3D6;font-size:13.5px;line-height:1.9}
.foot-contact strong{color:#fff;font-variant-numeric:tabular-nums}
.foot-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--dark-text-2);font-size:14px}
.foot-col a:hover{color:#fff;text-decoration:underline}
.foot-bottom{
  margin-top:52px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  color:#7F9096;font-size:13px;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--side:220px}
  .split{gap:36px}
}
@media (max-width:1023px){
  :root{--sect:72px}
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:60px}
  .split{grid-template-columns:1fr;gap:28px}
  .split-aside{position:static}
  .num-list{padding-left:24px}
  .num-item::before{left:-30px}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .timeline::before{display:none}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat{padding:0 20px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .scene-a,.scene-b,.scene-c{grid-column:1 / 13;grid-row:auto}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sect:56px}
  .container{padding:0 20px}
  .cat-hero-inner{padding:40px 0 40px}
  .cat-hero .lead{font-size:15.5px}
  .cat-hero .desc{font-size:14.5px}
  .hero-actions{gap:10px}
  .timeline{grid-template-columns:1fr;row-gap:0}
  .timeline::before{
    display:block;left:11px;right:auto;top:0;bottom:0;width:2px;height:auto;
    background:linear-gradient(180deg,var(--primary) 0%,var(--border) 100%);
  }
  .tl-item{padding:0 0 30px 44px}
  .tl-item::before{left:0;top:0;box-shadow:0 0 0 6px var(--bg)}
  .tl-item::after{left:8px;top:8px}
  .section.alt .tl-item::before{box-shadow:0 0 0 6px #fff}
  .cta-actions .btn,.hero-actions .btn{width:100%}
  .form-row{grid-template-columns:1fr;gap:0}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .stat{padding:0 14px}
  .stat-num{font-size:38px}
  .scene-body{padding:18px 18px 22px}
  .faq-q{padding:16px 16px;font-size:15px}
  .faq-a p{padding:0 16px 18px}
}

/* roulang page: category3 */
:root{
  --primary:#0BA678;
  --primary-deep:#077A58;
  --primary-soft:#E6F7F1;
  --accent:#FF6B2C;
  --accent-deep:#E0551A;
  --micro:#5B4BE8;
  --ink:#10161A;
  --ink-2:#5A6A72;
  --ink-3:#8C9AA3;
  --line:#E3E9EC;
  --bg:#F6F8F8;
  --card:#FFFFFF;
  --dark:#0E1518;
  --dark-2:#16202400;
  --dark-text:#E8EEEF;
  --dark-sub:#9AABAF;
  --err:#D93A2B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,22,26,.04),0 8px 24px -12px rgba(16,22,26,.10);
  --shadow-hover:0 16px 40px -16px rgba(16,22,26,.18);
  --side:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--card);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-deep);text-decoration:underline}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-deep)}

/* ---------- 容器 ---------- */
.container{max-width:1160px;margin:0 auto;padding:0 32px;width:100%}
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{margin-bottom:36px}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:600;letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:18px;border-radius:2px;background:var(--primary);
}
.sec-head .lead{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:760px}
.bg-soft{background:var(--bg)}

/* ---------- 侧边栏 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 16px 20px;z-index:70;
}
.brand{display:flex;align-items:center;gap:10px;height:72px;padding:0 6px;border-bottom:1px solid var(--line);flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:17px;font-weight:700;flex:none;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:-.01em}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}
.side-nav{display:flex;flex-direction:column;gap:2px;margin-top:16px}
.side-nav a{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
  border-radius:8px;color:var(--ink-2);font-size:15px;transition:background .18s ease,color .18s ease;
}
.side-nav a:hover{background:var(--bg);color:var(--ink);text-decoration:none}
.side-nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:600;text-decoration:none}
.side-nav a.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--primary)}
.side-nav svg{flex:none}
.side-label{margin:20px 12px 6px;font-size:12px;color:var(--ink-3);letter-spacing:.08em}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}
.side-foot p{font-size:13px;color:var(--ink-3);line-height:1.7;margin-bottom:12px}
.side-foot strong{color:var(--ink);font-size:15px;letter-spacing:.01em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(11,166,120,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,107,44,.9)}
.btn-outline{background:transparent;border-color:#CFD9DD;color:var(--ink)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7}
.btn-ghost-light{background:transparent;border-color:rgba(232,238,239,.34);color:#fff}
.btn-ghost-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-block{width:100%}
.btn[disabled]{background:var(--line);color:var(--ink-3);cursor:not-allowed;transform:none;box-shadow:none}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column}
.main > main{flex:1}

/* ---------- 顶部栏 / 抽屉（移动端） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:80;height:60px;background:#fff;
  border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand{height:auto;border:0;padding:0}
.hamburger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  display:grid;place-items:center;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(14,21,24,.46);z-index:90;
}
.drawer-mask.show{display:block}
.drawer{
  position:fixed;left:0;top:0;bottom:0;width:280px;max-width:82vw;background:#fff;z-index:100;
  transform:translateX(-100%);transition:transform .26s ease;display:flex;flex-direction:column;
  padding:0 16px 20px;overflow-y:auto;
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;border-bottom:1px solid var(--line);flex:none}
.drawer-close{width:44px;height:44px;border:0;background:transparent;display:grid;place-items:center;font-size:22px;color:var(--ink-2)}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  display:flex;align-items:center;min-height:clamp(340px,44vh,480px);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),
    url(/assets/images/backpic/back-2.png);
  background-size:46px 46px,46px 46px,cover;
  background-position:0 0,0 0,center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(92deg,rgba(14,21,24,.94) 0%,rgba(14,21,24,.78) 52%,rgba(14,21,24,.46) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:56px}
.crumb{font-size:13px;color:var(--dark-sub);margin-bottom:18px}
.crumb a{color:var(--dark-sub)}
.crumb a:hover{color:#fff}
.crumb span{margin:0 8px;opacity:.6}
.page-hero h1{
  font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em;max-width:760px;
}
.page-hero h1 em{font-style:normal;color:#7FE3C2;display:block;font-size:15px;font-weight:600;letter-spacing:.06em;margin-bottom:12px}
.page-hero .hero-desc{margin-top:18px;font-size:16px;line-height:1.85;color:#CEDBDD;max-width:720px}
.page-hero .btn-row{margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-tags span{
  font-size:13px;color:#B9CBCC;border:1px solid rgba(232,238,239,.24);
  padding:4px 12px;border-radius:999px;
}

/* ---------- 分类互链 ---------- */
.cat-bar{border-bottom:1px solid var(--line);background:#fff}
.cat-bar .container{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-top:18px;padding-bottom:18px}
.cat-bar .label{font-size:13px;color:var(--ink-3);letter-spacing:.04em}
.cat-pill{
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);background:#fff;transition:.18s ease;
}
.cat-pill:hover{border-color:var(--primary);color:var(--primary);background:#F2FBF7;text-decoration:none}
.cat-pill.current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- 错位卡片网格 ---------- */
.stagger-wrap{display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:start}
.stagger{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D6DEE2}
.card-media{position:relative;overflow:hidden;background:var(--bg)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media.r169{aspect-ratio:16/9}
.card-media.r43{aspect-ratio:4/3}
.card-body{padding:22px 22px 24px}
.card-body h3{font-size:18px;line-height:1.4;font-weight:600;margin-bottom:10px}
.card-body p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.card-wide{grid-column:1 / -1}
.card-offset{margin-top:30px}
.badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;margin-bottom:12px;
}
.badge-line{background:transparent;border:1px solid rgba(91,75,232,.32);color:var(--micro)}
.card-meta{margin-top:14px;font-size:13px;color:var(--ink-3);display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 右侧要点卡 ---------- */
.points{position:sticky;top:32px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px}
.points h2{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:6px}
.points .sub{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.points ul{display:flex;flex-direction:column}
.points li{
  display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.7;color:var(--ink-2);
}
.points li:first-child{border-top:0;padding-top:0}
.points li b{display:block;color:var(--ink);font-size:15px;font-weight:600;margin-bottom:2px}
.points li i{
  flex:none;width:24px;height:24px;border-radius:8px;background:#fff;border:1px solid var(--line);
  color:var(--primary);font-style:normal;font-size:12px;font-weight:700;display:grid;place-items:center;
}
.points .btn{margin-top:20px}

/* ---------- 深色编号带 ---------- */
.dark-band{background:var(--dark);color:var(--dark-text);padding:72px 0}
.dark-band .sec-head h2{color:#fff}
.dark-band .sec-head .lead{color:var(--dark-sub)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.step-item{padding:8px 26px;border-left:1px solid rgba(232,238,239,.14)}
.step-item:first-child{border-left:0;padding-left:0}
.step-item .num{
  font-size:clamp(32px,3.4vw,44px);font-weight:700;line-height:1;color:var(--primary);
  letter-spacing:-.02em;display:block;margin-bottom:14px;
}
.step-item h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:8px}
.step-item p{font-size:14px;line-height:1.75;color:var(--dark-sub)}

/* ---------- 场景横向条目 ---------- */
.scene-list{border-top:1px solid var(--line)}
.scene-row{
  display:grid;grid-template-columns:64px 1.1fr 1.4fr auto;gap:24px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);transition:background .2s ease;
}
.scene-row:hover{background:#FAFCFC}
.scene-row .idx{font-size:14px;font-weight:700;color:var(--primary);letter-spacing:.06em}
.scene-row h3{font-size:17px;font-weight:600;line-height:1.45}
.scene-row p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.scene-row .tag{
  font-size:13px;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:5px 14px;white-space:nowrap;
}

/* ---------- 证言 ---------- */
.quote-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:24px}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 26px;
  box-shadow:var(--shadow-sm);
}
.quote p{position:relative;padding-left:20px;font-size:16px;line-height:1.85;color:var(--ink)}
.quote p::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:3px;border-radius:2px;background:var(--primary)}
.quote .who{margin-top:18px;display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--primary-soft);color:var(--primary-deep);
  display:grid;place-items:center;font-size:15px;font-weight:700;flex:none;
}
.who b{display:block;font-size:14px;font-weight:600}
.who span{font-size:13px;color:var(--ink-3)}
.quote-side{display:grid;gap:24px}
.quote.small p{font-size:15px}
.quote .figure{margin-top:16px;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--bg)}
.quote .figure img{width:100%;height:100%;object-fit:cover}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;overflow:hidden}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;padding:20px 24px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--ink);transition:background .18s ease;
}
.faq-q:hover{background:#FAFCFC}
.faq-q .icon{position:relative;width:16px;height:16px;flex:none}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease;
}
.faq-q .icon::before{left:0;top:7px;width:16px;height:2px}
.faq-q .icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-q{position:relative;background:#F7FBF9}
.faq-item.open .faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;background:var(--primary)}
.faq-item.open .faq-q .icon::after{transform:scaleY(0);opacity:0}
.faq-a{display:none;padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);background:#F7FBF9}
.faq-item.open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--dark);color:#fff;padding:72px 0;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(680px 320px at 88% 12%,rgba(11,166,120,.30),transparent 66%);
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.cta-copy{border-left:4px solid var(--primary);padding-left:24px}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:600;color:#fff}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:#B7C7C9;max-width:520px}
.cta-copy .btn-row{margin-top:26px}
.form-card{background:#fff;border-radius:var(--radius-card);padding:26px 24px;box-shadow:0 24px 60px -30px rgba(0,0,0,.55)}
.form-card h3{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.form-card .hint{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.field input,.field textarea{
  width:100%;height:47px;padding:0 14px;border:1px solid #D8E0E3;border-radius:var(--radius-btn);
  background:#fff;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A6B2B8}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,166,120,.18)}
.field .err-text{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.invalid input,.field.invalid textarea{border-color:var(--err)}
.field.invalid .err-text{display:block}
.form-note{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.form-alert{display:none;margin-top:14px;padding:10px 14px;border-left:3px solid var(--primary);background:var(--primary-soft);font-size:13px;color:var(--primary-deep);border-radius:6px}
.form-alert.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-sub);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--dark-sub);margin-top:16px;max-width:340px}
.foot-contact{margin-top:18px;font-size:14px;line-height:1.9;color:var(--dark-sub)}
.foot-contact strong{color:#fff;font-size:16px}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--dark-sub)}
.foot-col a:hover{color:#fff;text-decoration:underline}
.foot-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(232,238,239,.12);padding:20px 0 28px;font-size:13px;color:#7F9095;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--side:220px}
  .container{max-width:1080px}
  .stagger-wrap{grid-template-columns:1fr;gap:32px}
  .points{position:static}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .main{margin-left:0}
  .topbar{display:flex}
  .sec{padding:72px 0}
  .container{padding:0 24px}
  .step-grid{grid-template-columns:1fr 1fr;row-gap:32px}
  .step-item{padding:0 20px}
  .step-item:nth-child(odd){border-left:0;padding-left:0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .quote-grid{grid-template-columns:1fr}
  .scene-row{grid-template-columns:48px 1fr;grid-template-areas:"idx title" ". desc";gap:8px 16px}
  .scene-row .idx{grid-area:idx}
  .scene-row h3{grid-area:title}
  .scene-row p{grid-area:desc}
  .scene-row .tag{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .sec{padding:56px 0}
  .stagger{grid-template-columns:1fr}
  .card-offset{margin-top:0}
  .step-grid{grid-template-columns:1fr}
  .step-item{padding:0;border-left:0;border-top:1px solid rgba(232,238,239,.14);padding-top:24px}
  .step-item:first-child{border-top:0;padding-top:0}
  .page-hero .container{padding-top:44px;padding-bottom:44px}
  .page-hero .hero-desc{font-size:15px}
  .quote{padding:22px 20px}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .btn-row{flex-direction:column;align-items:stretch}
  .btn-row .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .card-body{padding:18px}
  .points{padding:20px 18px}
  .scene-row{grid-template-columns:1fr}
  .scene-row .idx{font-size:13px}
}