/* roulang page: index */
:root{
  --ink:#0c1a18;
  --ink-2:#132a27;
  --primary:#0f766e;
  --primary-dark:#0a5751;
  --primary-soft:#e2f2ee;
  --accent:#a97c2f;
  --bg:#f7f5f0;
  --surface:#ffffff;
  --text:#1b2a28;
  --muted:#5f7570;
  --line:#e3e8e4;
  --radius-lg:16px;
  --radius:12px;
  --shadow-sm:0 1px 2px rgba(12,26,24,.05),0 8px 22px rgba(12,26,24,.05);
  --shadow-md:0 16px 38px rgba(12,26,24,.12);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding-bottom:76px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;color:inherit;letter-spacing:.2px;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;border:0;}
ul,ol{list-style:none;margin:0;padding:0;}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(15,118,110,.55);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.grid-x{margin-left:-12px;margin-right:-12px;margin-bottom:-24px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;padding-bottom:24px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:120;padding:16px 20px 0;pointer-events:none;}
.nav-capsule{
  pointer-events:auto;max-width:var(--container);margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;padding:0 12px 0 20px;
  border-radius:999px;background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(15,118,110,.14);
  box-shadow:0 10px 30px rgba(12,26,24,.08);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-capsule{box-shadow:0 16px 40px rgba(12,26,24,.16);background:rgba(255,255,255,.96);}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--primary),#0b4f49);
  display:grid;place-items:center;color:#eaf6f3;font-size:13px;font-weight:700;letter-spacing:0;
}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:#37514c;transition:background .2s,color .2s;}
.nav-menu a:hover{background:rgba(15,118,110,.09);color:var(--primary-dark);}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(15,118,110,.28);}
.nav-cta{margin-left:6px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(15,118,110,.2);background:#fff;color:var(--primary-dark);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,118,110,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,118,110,.32);}
.btn-outline{border-color:rgba(15,118,110,.4);color:var(--primary-dark);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06);}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px);}

/* Hero */
.hero{position:relative;margin-top:-80px;padding:160px 0 100px;overflow:hidden;background:#0a1817;color:#eef7f5;}
.hero-media{position:absolute;inset:0;z-index:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.46;}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(112deg,rgba(8,21,20,.95) 0%,rgba(8,21,20,.82) 46%,rgba(8,21,20,.46) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  font-size:13px;letter-spacing:.6px;color:#a9e2d8;background:rgba(15,118,110,.22);
  border:1px solid rgba(120,220,205,.32);
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:#4fd1c0;display:block;}
.hero h1{font-size:clamp(30px,4.4vw,46px);line-height:1.26;margin:22px 0 18px;color:#fff;letter-spacing:.4px;}
.hero-lead{font-size:16px;line-height:1.85;color:#c2d8d4;max-width:760px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px;}
.hero-play{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.1);
  transition:transform .25s,background .25s;
}
.hero-play::before{content:"";width:0;height:0;border-left:14px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:4px;}
.hero-play:hover{transform:scale(1.07);background:rgba(255,255,255,.22);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;color:#cfe8e3;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px;
  padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats strong{display:block;font-size:26px;color:#fff;line-height:1.2;}
.hero-stats span{font-size:13px;color:#9dbab5;}

/* 板块 */
.section{padding:88px 0;}
.section--alt{background:#fbfaf6;}
.section--paper{background:#fff;}
.section--dark{background:var(--ink);color:#e6f1ee;}
.section-head{max-width:740px;margin-bottom:44px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;
  letter-spacing:1.4px;color:var(--primary);text-transform:uppercase;
}
.section-eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:2px;}
.section-head h2{font-size:clamp(23px,2.8vw,33px);margin:12px 0 14px;color:var(--ink);}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.section--dark .section-head h2{color:#fff;}
.section--dark .section-head p{color:#9fb8b2;}
.section--dark .section-eyebrow{color:#4fd1c0;}
.section--dark .section-eyebrow::before{background:#4fd1c0;}

/* 卖点卡 */
.feature-card{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:28px 24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;gap:12px;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.34);}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary-dark);
}
.icon-box svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{font-size:17px;color:var(--ink);}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.78;}

/* 指标条 */
.metrics-strip{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 28px;box-shadow:var(--shadow-sm);
}
.metric{text-align:left;padding:6px 10px;border-left:3px solid var(--primary-soft);}
.metric strong{display:block;font-size:28px;color:var(--primary-dark);line-height:1.2;}
.metric span{font-size:13.5px;color:var(--muted);}
.metric-note{font-size:12.5px;color:#93a8a3;margin-top:14px;}

/* 算法卡 */
.algo-card{
  height:100%;display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.algo-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.36);}
.algo-card .algo-no{font-size:12px;font-weight:700;letter-spacing:1.6px;color:#9db4ae;}
.algo-card h3{font-size:17px;color:var(--ink);}
.algo-card p{font-size:14.5px;color:var(--muted);line-height:1.78;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12.5px;
  color:var(--primary-dark);background:var(--primary-soft);border:1px solid rgba(15,118,110,.14);
}
.tag-gold{color:#8a651f;background:#faf3e2;border-color:#ecdfc2;}

/* 演示区 */
.demo-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.demo-figure{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md);}
.demo-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.demo-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 22px;font-size:13px;color:#dff0ec;
  background:linear-gradient(to top,rgba(8,21,20,.9),rgba(8,21,20,0));
}
.step-list{display:grid;gap:18px;margin-top:26px;}
.step-item{display:flex;gap:16px;padding:18px 20px;border-radius:14px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.step-no{
  flex:none;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-size:13px;font-weight:700;
}
.step-item h4{font-size:15.5px;color:var(--ink);margin-bottom:4px;}
.step-item p{font-size:14px;color:var(--muted);line-height:1.7;}

/* 进度 */
.progress-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px 24px;box-shadow:var(--shadow-sm);height:100%;transition:transform .2s,box-shadow .2s;}
.progress-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.progress-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:14px;}
.progress-head h3{font-size:16.5px;color:var(--ink);}
.progress-head em{font-style:normal;font-size:14px;font-weight:700;color:var(--primary-dark);}
.progress-track{height:8px;border-radius:99px;background:#e7edea;overflow:hidden;}
.progress-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),#2fae9f);}
.progress-card p{font-size:14px;color:var(--muted);margin-top:14px;line-height:1.75;}

/* 时间线 */
.timeline{position:relative;display:grid;gap:26px;padding-left:26px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(to bottom,rgba(15,118,110,.5),rgba(15,118,110,.08));}
.timeline-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;}
.timeline-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.timeline-item::before{content:"";position:absolute;left:-26px;top:26px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--primary);}
.timeline-item strong{display:block;font-size:12.5px;letter-spacing:1.4px;color:var(--primary);margin-bottom:8px;}
.timeline-item h3{font-size:16.5px;color:var(--ink);margin-bottom:8px;}
.timeline-item p{font-size:14.5px;color:var(--muted);line-height:1.78;}

/* 评价 */
.quote-card{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:28px 24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.quote-card p{font-size:15px;color:#2c423e;line-height:1.85;}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--primary-soft);color:var(--primary-dark);font-weight:700;font-size:14px;}
.quote-user b{display:block;font-size:14px;color:var(--ink);}
.quote-user span{font-size:12.5px;color:var(--muted);}

/* 对比 */
.compare-col{height:100%;border-radius:16px;padding:30px 26px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-sm);}
.compare-col.is-dark{background:#0f2a26;border-color:#1c403a;color:#dcebe7;box-shadow:var(--shadow-md);}
.compare-col h3{font-size:18px;margin-bottom:18px;}
.compare-col.is-dark h3{color:#fff;}
.compare-col li{display:flex;gap:10px;font-size:14.8px;line-height:1.75;padding:9px 0;border-bottom:1px solid rgba(0,0,0,.05);color:var(--muted);}
.compare-col.is-dark li{color:#b6d2cb;border-bottom-color:rgba(255,255,255,.09);}
.compare-col li:last-child{border-bottom:0;}
.compare-col li i{flex:none;width:8px;height:8px;border-radius:50%;background:#c7d3cf;margin-top:10px;}
.compare-col.is-dark li i{background:#4fd1c0;}

/* 更新日志 */
.log-row{
  display:flex;gap:20px;padding:22px 24px;border-radius:14px;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.log-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.log-ver{
  flex:none;min-width:88px;height:34px;display:grid;place-items:center;border-radius:9px;
  background:var(--primary-soft);color:var(--primary-dark);font-size:13px;font-weight:700;letter-spacing:.6px;
}
.log-row h3{font-size:16px;color:var(--ink);margin-bottom:6px;}
.log-row p{font-size:14.3px;color:var(--muted);line-height:1.75;}

/* 资讯 */
.news-panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:10px 24px 18px;box-shadow:var(--shadow-sm);}
.news-item{display:block;padding:20px 0;border-bottom:1px solid var(--line);transition:padding-left .2s,color .2s;}
.news-item:last-child{border-bottom:0;}
.news-item:hover{padding-left:8px;}
.news-item h3{font-size:16.5px;color:var(--ink);margin-bottom:7px;transition:color .2s;}
.news-item:hover h3{color:var(--primary-dark);}
.news-item p{font-size:14.2px;color:var(--muted);line-height:1.75;}
.news-meta{display:flex;gap:14px;margin-top:10px;font-size:12.5px;color:#93a8a3;}
.news-meta span{padding:2px 10px;border-radius:999px;background:#f1f5f3;color:#5d7772;}
.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;}
.side-panel h3{font-size:16px;color:var(--ink);margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-panel h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);}
.side-link{display:block;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.3px;color:#37514c;line-height:1.7;transition:color .2s,padding-left .2s;}
.side-link:last-of-type{border-bottom:0;}
.side-link:hover{color:var(--primary-dark);padding-left:6px;}
.empty-tip{padding:36px 0;text-align:center;color:#93a8a3;font-size:14.5px;}

/* 分类入口 */
.cat-card{
  display:block;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .22s,box-shadow .22s,border-color .22s;
}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.36);color:inherit;}
.cat-thumb{aspect-ratio:16/9;overflow:hidden;background:#e9efec;}
.cat-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.cat-card:hover .cat-thumb img{transform:scale(1.06);}
.cat-body{padding:22px 22px 24px;}
.cat-body h3{font-size:17px;color:var(--ink);margin-bottom:9px;}
.cat-body p{font-size:14.3px;color:var(--muted);line-height:1.78;}
.cat-more{display:inline-flex;align-items:center;gap:6px;margin-top:15px;font-size:13.5px;font-weight:600;color:var(--primary-dark);}

/* 误区 */
.myth-card{height:100%;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;}
.myth-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.myth-label{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:#fdf1ee;color:#a8503c;border:1px solid #f3ddd6;margin-bottom:12px;}
.fact-label{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark);border:1px solid rgba(15,118,110,.18);margin-bottom:10px;}
.myth-card h3{font-size:16px;color:var(--ink);margin-bottom:12px;}
.myth-card p{font-size:14.3px;color:var(--muted);line-height:1.78;}

/* 保障 */
.guard-item{padding:26px 24px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);height:100%;transition:background .2s,border-color .2s,transform .2s;}
.guard-item:hover{background:rgba(255,255,255,.09);border-color:rgba(79,209,192,.4);transform:translateY(-3px);}
.guard-item strong{display:block;font-size:15.5px;color:#fff;margin-bottom:9px;}
.guard-item p{font-size:14.2px;color:#a9c5bf;line-height:1.78;}

/* 订阅 */
.subscribe-panel{
  background:linear-gradient(135deg,#0f766e,#0a4a45);border-radius:20px;padding:52px 46px;color:#fff;
  box-shadow:0 24px 60px rgba(10,74,69,.28);position:relative;overflow:hidden;
}
.subscribe-panel::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.07);}
.subscribe-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;}
.subscribe-panel h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:14px;}
.subscribe-panel p{font-size:14.8px;color:#cdeae4;line-height:1.8;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input[type="email"]{
  flex:1 1 220px;min-height:50px;padding:0 18px;border-radius:10px;border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.12);color:#fff;font-size:14.5px;
}
.subscribe-form input[type="email"]::placeholder{color:#b7d8d1;}
.subscribe-form input[type="email"]:focus{outline:2px solid #9fe7d9;outline-offset:2px;}
.subscribe-form .btn{min-height:50px;background:#fff;color:var(--primary-dark);font-weight:700;box-shadow:0 12px 26px rgba(0,0,0,.16);}
.subscribe-form .btn:hover{background:#eafaf5;color:var(--primary-dark);transform:translateY(-2px);}
.form-note{width:100%;font-size:12.5px;color:#b7d8d1;margin-top:2px;}

/* 页脚 */
.site-footer{background:#0a1817;color:#a9c0ba;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-text small{color:#7d9a94;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8fa8a3;max-width:360px;}
.footer-col h4{font-size:14px;letter-spacing:1.4px;color:#fff;margin-bottom:18px;}
.footer-col a{display:block;font-size:14px;color:#93aca6;padding:6px 0;transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:#4fd1c0;padding-left:5px;}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7d9a94;
}

/* 底部固定条 */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:130;
  background:rgba(10,24,23,.96);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid rgba(79,209,192,.24);padding:12px 0;
}
.sticky-inner{display:flex;align-items:center;gap:18px;justify-content:space-between;flex-wrap:wrap;}
.sticky-inner p{font-size:14px;color:#cfe3de;}
.sticky-inner p b{color:#4fd1c0;}

/* 响应式 */
@media screen and (max-width:1023px){
  .hero{padding:140px 0 80px;}
  .demo-wrap{grid-template-columns:1fr;gap:36px;}
  .subscribe-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px;}
}
@media screen and (max-width:899px){
  .nav-menu{
    position:absolute;left:16px;right:16px;top:88px;flex-direction:column;align-items:stretch;
    background:#fff;border:1px solid rgba(15,118,110,.14);border-radius:18px;
    box-shadow:0 20px 50px rgba(12,26,24,.18);padding:12px;gap:4px;
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{padding:12px 16px;border-radius:12px;font-size:15px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:64px 0;}
  .hero{margin-top:-72px;padding:126px 0 68px;}
  .hero-lead{font-size:15px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-play{display:none;}
  .subscribe-panel{padding:36px 24px;}
  .log-row{flex-direction:column;gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .sticky-inner{justify-content:center;text-align:center;}
}
@media screen and (max-width:520px){
  .logo-text{font-size:14px;}
  .hero h1{font-size:26px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hero-stats strong{font-size:22px;}
  .metric strong{font-size:24px;}
  .section-head h2{font-size:22px;}
  .subscribe-form .btn{flex:1 1 100%;}
  .sticky-inner p{font-size:13px;}
}

/* roulang page: article */
:root{
 --ink:#0c1a18;
 --ink-2:#132a27;
 --primary:#0f766e;
 --primary-dark:#0a5751;
 --primary-soft:#e2f2ee;
 --accent:#a97c2f;
 --bg:#f7f5f0;
 --surface:#ffffff;
 --text:#1b2a28;
 --muted:#5f7570;
 --line:#e3e8e4;
 --radius-lg:16px;
 --radius:12px;
 --shadow-sm:0 1px 2px rgba(12,26,24,.05),0 8px 22px rgba(12,26,24,.05);
 --shadow-md:0 16px 38px rgba(12,26,24,.12);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd,dt,table{margin:0;padding:0;}
ul,ol{list-style:none;}
body{
 margin:0;padding-bottom:78px;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
 font-size:16px;line-height:1.78;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;border:0;}
button{font:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:120;padding:16px 20px 0;pointer-events:none;}
.nav-capsule{
 pointer-events:auto;max-width:var(--container);margin:0 auto;height:64px;
 display:flex;align-items:center;gap:18px;padding:0 12px 0 20px;
 border-radius:999px;background:rgba(255,255,255,.9);
 -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
 border:1px solid rgba(15,118,110,.14);
 box-shadow:0 10px 30px rgba(12,26,24,.08);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-capsule{box-shadow:0 16px 40px rgba(12,26,24,.16);background:rgba(255,255,255,.96);}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);white-space:nowrap;}
.logo-mark{
 width:32px;height:32px;border-radius:10px;flex:none;
 background:linear-gradient(135deg,var(--primary),#0b4f49);
 display:grid;place-items:center;color:#eaf6f3;font-size:13px;font-weight:700;
}
.logo-text{line-height:1.15;}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1.4;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:#37514c;transition:background .2s,color .2s;}
.nav-menu a:hover{background:rgba(15,118,110,.09);color:var(--primary-dark);}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(15,118,110,.28);}
.nav-cta{margin-left:6px;}
.nav-toggle{
 display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
 border:1px solid rgba(15,118,110,.2);background:#fff;color:var(--primary-dark);
 align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
 font-size:15px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,118,110,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,118,110,.32);}
.btn-outline{border-color:rgba(15,118,110,.4);color:var(--primary-dark);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.08);}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}

/* 标签与徽章 */
.tag{
 display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
 font-size:12.5px;font-weight:600;letter-spacing:.4px;
 background:var(--primary-soft);color:var(--primary-dark);border:1px solid rgba(15,118,110,.16);
}
.tag--accent{background:#f7efdd;color:#8a6320;border-color:rgba(169,124,47,.22);}
.tag--plain{background:#f1f4f2;color:#4d635f;border-color:var(--line);}

/* 顶部矮横幅 */
.page-banner{
 position:relative;margin-top:-80px;padding:132px 0 54px;
 background:linear-gradient(180deg,#edf4f1 0%,#f5f4ee 100%);
 border-bottom:1px solid var(--line);overflow:hidden;
}
.page-banner::before{
 content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
 background:radial-gradient(circle at 30% 30%,rgba(15,118,110,.16),rgba(15,118,110,0) 68%);
}
.page-banner::after{
 content:"";position:absolute;left:-90px;bottom:-160px;width:320px;height:320px;border-radius:50%;
 background:radial-gradient(circle at 50% 50%,rgba(169,124,47,.13),rgba(169,124,47,0) 70%);
}
.page-banner .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb .sep{color:#b6c2be;}
.breadcrumb a:hover{color:var(--primary-dark);}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.article-head{max-width:860px;}
.article-head h1{
 font-size:clamp(26px,3.5vw,38px);line-height:1.34;letter-spacing:.2px;
 color:var(--ink);margin:0 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13.5px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#b8c6c1;display:inline-block;}
.article-meta strong{color:var(--ink-2);font-weight:600;}

/* 主体排版 */
.article-main{padding:56px 0 40px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;}
.article-col{min-width:0;max-width:760px;}
.paper{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);padding:30px;
}
.cover-figure{margin:0 0 26px;border-radius:var(--radius);overflow:hidden;background:#e9efec;}
.cover-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;}
.lead-text{
 font-size:16.5px;color:#3a524e;line-height:1.85;padding:16px 20px;margin:0 0 26px;
 background:#f4f8f6;border-left:4px solid var(--primary);border-radius:0 var(--radius) var(--radius) 0;
}
.article-body{font-size:16px;line-height:1.86;color:#22322f;overflow-wrap:break-word;}
.article-body p{margin:0 0 16px;}
.article-body h2{
 font-size:22px;line-height:1.45;color:var(--ink);margin:34px 0 14px;padding-left:14px;
 border-left:4px solid var(--primary);
}
.article-body h3{font-size:18px;line-height:1.5;color:var(--ink-2);margin:26px 0 10px;}
.article-body h4{font-size:16px;color:var(--ink-2);margin:20px 0 8px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:8px;}
.article-body ol li{list-style:decimal;margin-bottom:8px;}
.article-body strong{color:var(--primary-dark);font-weight:700;}
.article-body em{font-style:normal;color:var(--accent);font-weight:600;}
.article-body blockquote{
 margin:20px 0;padding:16px 20px;background:var(--primary-soft);color:#10504a;
 border-left:4px solid var(--primary);border-radius:0 var(--radius) var(--radius) 0;
}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;}
.article-body th{background:#f2f6f4;color:var(--ink-2);font-weight:700;}
.article-body img{border-radius:var(--radius);margin:18px 0;}
.article-body a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.empty-state{text-align:left;padding:12px 0 4px;}
.empty-state h2{font-size:22px;color:var(--ink);margin:0 0 10px;}
.empty-state p{color:var(--muted);margin:0 0 20px;}

/* 侧栏 */
.side-stack{display:grid;gap:20px;position:sticky;top:96px;}
.side-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-sm);transition:box-shadow .2s,border-color .2s;
}
.side-card:hover{box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.24);}
.side-card h3{font-size:15px;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);display:block;}
.kv{display:grid;gap:10px;font-size:14px;}
.kv-row{display:flex;justify-content:space-between;gap:12px;padding-bottom:9px;border-bottom:1px dashed var(--line);}
.kv-row:last-child{border-bottom:0;padding-bottom:0;}
.kv-row dt{color:var(--muted);}
.kv-row dd{color:var(--ink-2);font-weight:600;text-align:right;}
.side-list{display:grid;gap:12px;}
.side-list a{
 display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:#314b46;line-height:1.6;
 padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-list li:last-child a{border-bottom:0;padding-bottom:0;}
.side-list a:hover{color:var(--primary-dark);}
.side-list .num{
 flex:none;width:22px;height:22px;border-radius:7px;background:var(--primary-soft);color:var(--primary-dark);
 font-size:12px;font-weight:700;display:grid;place-items:center;
}
.side-cta{background:var(--ink);color:#dfeee9;border-color:transparent;}
.side-cta h3{color:#fff;}
.side-cta h3::before{background:#4fd1c0;}
.side-cta p{font-size:14px;color:#a9c3bd;margin:0 0 16px;line-height:1.72;}

/* 通用板块 */
.section{padding:72px 0;}
.section--alt{background:#fbfaf6;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--paper{background:#fff;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-eyebrow{
 display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;
 letter-spacing:1.4px;color:var(--primary);
}
.section-eyebrow::before{content:"";width:24px;height:2px;background:var(--primary);display:block;}
.section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.42;color:var(--ink);margin:12px 0 12px;}
.section-head p{color:var(--muted);font-size:15px;line-height:1.8;}

/* 速览卡 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.info-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.28);}
.info-card .icon{
 width:40px;height:40px;border-radius:11px;background:var(--primary-soft);color:var(--primary-dark);
 display:grid;place-items:center;margin-bottom:14px;font-weight:800;font-size:15px;
}
.info-card h3{font-size:17px;color:var(--ink);margin:0 0 10px;}
.info-card p{font-size:14.5px;color:var(--muted);line-height:1.78;margin:0 0 14px;}
.info-card .tag{margin-right:6px;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:flow;}
.flow-item{
 position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.flow-item .step{
 display:inline-block;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--primary);
 margin-bottom:10px;
}
.flow-item h3{font-size:16px;color:var(--ink);margin:0 0 8px;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* 版本表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm);}
.version-table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px;}
.version-table th,.version-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
.version-table thead th{background:#f2f6f4;color:var(--ink-2);font-weight:700;font-size:13.5px;letter-spacing:.3px;}
.version-table tbody tr:last-child td{border-bottom:0;}
.version-table tbody tr:hover{background:#f8fbf9;}
.version-table td strong{color:var(--primary-dark);}

/* 关联条目 */
.link-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.link-card{
 display:flex;flex-direction:column;gap:12px;background:var(--surface);
 border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.28);}
.link-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.link-card .body{padding:0 20px 22px;}
.link-card h3{font-size:16.5px;color:var(--ink);margin:0 0 8px;line-height:1.5;}
.link-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 12px;}
.link-more{display:flex;justify-content:flex-end;margin-top:26px;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:rgba(15,118,110,.3);box-shadow:var(--shadow-md);}
.faq-item summary{
 cursor:pointer;list-style:none;padding:18px 56px 18px 22px;position:relative;
 font-size:16px;font-weight:600;color:var(--ink-2);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
 font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.faq-item[open] summary::after{content:"–";}
.faq-body{padding:0 22px 20px;font-size:15px;color:#4a625d;line-height:1.82;}
.faq-body p{margin:0;}

/* 强转化面板 */
.cta-panel{
 background:linear-gradient(135deg,var(--ink) 0%,#14413b 100%);
 border-radius:var(--radius-lg);padding:44px;color:#e8f3ef;
 display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
 box-shadow:var(--shadow-md);position:relative;overflow:hidden;
}
.cta-panel::after{
 content:"";position:absolute;right:-80px;bottom:-120px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle at 40% 40%,rgba(79,209,192,.24),rgba(79,209,192,0) 70%);
}
.cta-panel .cta-text{position:relative;z-index:2;max-width:600px;}
.cta-panel h2{font-size:clamp(20px,2.4vw,26px);color:#fff;margin:0 0 12px;line-height:1.45;}
.cta-panel p{color:#a9c3bd;font-size:15px;line-height:1.8;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}

/* 底部固定条 */
.sticky-cta{
 position:fixed;left:0;right:0;bottom:0;z-index:110;
 background:rgba(12,26,24,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
 border-top:1px solid rgba(255,255,255,.12);
}
.sticky-cta .inner{
 max-width:var(--container);margin:0 auto;padding:12px 24px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-cta p{color:#cfe4df;font-size:14.5px;margin:0;line-height:1.5;}
.sticky-cta p strong{color:#fff;}

/* 页脚 */
.site-footer{background:#0c1a18;color:#b9cdc8;padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-text small{color:#7f9a94;}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:#93aaa4;max-width:420px;}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 16px;letter-spacing:.6px;}
.footer-col a{display:block;font-size:14.2px;color:#9db3ad;padding:6px 0;transition:color .2s,transform .2s;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
 display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
 padding-top:22px;font-size:13px;color:#7b928c;
}

/* 响应式 */
@media (max-width:1024px){
 .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
 .article-col{max-width:none;}
 .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
 .card-grid,.link-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-panel{padding:34px;}
}
@media (max-width:860px){
 .nav-toggle{display:flex;}
 .nav-cta{display:none;}
 .nav-menu{
  position:absolute;top:78px;left:16px;right:16px;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:12px;box-shadow:var(--shadow-md);
 }
 .nav-menu.open{display:flex;}
 .nav-menu a{padding:11px 16px;font-size:15px;border-radius:10px;}
 .nav-capsule{position:relative;}
 .site-header{padding:12px 14px 0;}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .page-banner{padding:112px 0 40px;}
 .article-main{padding:40px 0 24px;}
 .paper{padding:22px;}
 .section{padding:52px 0;}
 .card-grid,.link-cards,.flow,.side-stack{grid-template-columns:minmax(0,1fr);}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
 .cta-panel{padding:26px;}
 .sticky-cta .inner{padding:10px 18px;}
 .sticky-cta p{font-size:13.5px;}
 .article-body h2{font-size:20px;}
 .lead-text{font-size:15.5px;}
}
@media (max-width:520px){
 .logo-text{font-size:14px;}
 .logo-text small{font-size:10px;}
 .nav-capsule{height:58px;padding:0 10px 0 14px;gap:10px;}
 .nav-menu{top:72px;}
 .article-head h1{font-size:24px;}
 .btn{width:100%;}
 .hero-actions .btn,.cta-actions .btn{width:100%;}
 .sticky-cta .inner{flex-direction:column;align-items:stretch;gap:8px;text-align:center;}
 .sticky-cta .btn{min-height:40px;}
 body{padding-bottom:112px;}
}

/* roulang page: category1 */
:root{
 --ink:#0c1a18;
 --ink-2:#132a27;
 --primary:#0f766e;
 --primary-dark:#0a5751;
 --primary-soft:#e2f2ee;
 --accent:#a97c2f;
 --bg:#f7f5f0;
 --surface:#ffffff;
 --text:#1b2a28;
 --muted:#5f7570;
 --line:#e3e8e4;
 --radius-lg:16px;
 --radius:12px;
 --shadow-sm:0 1px 2px rgba(12,26,24,.05),0 8px 22px rgba(12,26,24,.05);
 --shadow-md:0 16px 38px rgba(12,26,24,.12);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;padding-bottom:76px;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
 font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;border:0;}
button{font:inherit;cursor:pointer;}
ul,ol{list-style:none;margin:0;padding:0;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.2px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.grid-x{margin-left:-12px;margin-right:-12px;margin-bottom:-24px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;padding-bottom:24px;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:120;padding:16px 20px 0;pointer-events:none;}
.nav-capsule{
 pointer-events:auto;position:relative;max-width:var(--container);margin:0 auto;height:64px;
 display:flex;align-items:center;gap:18px;padding:0 12px 0 20px;
 border-radius:999px;background:rgba(255,255,255,.9);
 -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
 border:1px solid rgba(15,118,110,.14);
 box-shadow:0 10px 30px rgba(12,26,24,.08);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-capsule{box-shadow:0 16px 40px rgba(12,26,24,.16);background:rgba(255,255,255,.96);}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);white-space:nowrap;}
.logo-mark{
 width:32px;height:32px;border-radius:10px;flex:none;
 background:linear-gradient(135deg,var(--primary),#0b4f49);
 display:grid;place-items:center;color:#eaf6f3;font-size:13px;font-weight:700;letter-spacing:0;
}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:#37514c;transition:background .2s,color .2s;}
.nav-menu a:hover{background:rgba(15,118,110,.09);color:var(--primary-dark);}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(15,118,110,.28);}
.nav-cta{margin-left:6px;}
.nav-toggle{
 display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
 border:1px solid rgba(15,118,110,.2);background:#fff;color:var(--primary-dark);
 align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
 font-size:15px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,118,110,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,118,110,.32);}
.btn-outline{border-color:rgba(15,118,110,.4);color:var(--primary-dark);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06);}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px);}

/* Hero */
.hero{position:relative;margin-top:-80px;padding:152px 0 88px;overflow:hidden;background:#0a1817;color:#eef7f5;}
.hero-media{position:absolute;inset:0;z-index:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.4;}
.hero::after{
 content:"";position:absolute;inset:0;z-index:1;
 background:linear-gradient(112deg,rgba(8,21,20,.96) 0%,rgba(8,21,20,.86) 48%,rgba(8,21,20,.55) 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
 font-size:13px;letter-spacing:.6px;color:#a9e2d8;background:rgba(15,118,110,.22);
 border:1px solid rgba(120,220,205,.32);
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:#4fd1c0;display:block;}
.hero h1{font-size:clamp(28px,3.9vw,42px);line-height:1.28;margin:20px 0 16px;color:#fff;}
.hero-lead{font-size:15.8px;line-height:1.85;color:#c2d8d4;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
 padding:6px 14px;border-radius:999px;font-size:13px;color:#cfe8e3;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.hero-stats{
 display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px;
 padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats strong{display:block;font-size:25px;color:#fff;line-height:1.2;}
.hero-stats span{font-size:13px;color:#9dbab5;}
.hero-poster{position:relative;border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 28px 60px rgba(0,0,0,.42);}
.hero-poster img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-poster figcaption{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:14px 18px;background:rgba(8,21,20,.86);color:#cfe8e3;font-size:13px;
}
.heat-badge{
 position:absolute;top:14px;left:14px;z-index:3;
 padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
 color:#f6e5c2;background:rgba(20,32,30,.82);border:1px solid rgba(169,124,47,.6);
 backdrop-filter:blur(6px);
}

/* 板块 */
.section{padding:84px 0;}
.section--alt{background:#fbfaf6;}
.section--paper{background:#fff;}
.section--dark{background:var(--ink);color:#e6f1ee;}
.section-head{max-width:740px;margin-bottom:40px;}
.section-eyebrow{
 display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;
 letter-spacing:1.6px;color:var(--primary);text-transform:uppercase;
}
.section-eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:2px;}
.section-head h2{font-size:clamp(23px,2.6vw,32px);margin:12px 0 12px;color:var(--ink);}
.section-head p{color:var(--muted);font-size:15.5px;}
.section--dark .section-head h2,.section--dark h2{color:#fff;}
.section--dark .section-head p{color:#a9c2bd;}
.section--dark .section-eyebrow{color:#6fd4c5;}
.section--dark .section-eyebrow::before{background:#6fd4c5;}

/* 卡片 */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding:26px;
 transition:transform .2s,box-shadow .2s,border-color .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.28);}
.card h3{font-size:17px;margin:16px 0 10px;color:var(--ink);}
.card p{font-size:14.6px;color:var(--muted);}
.card-icon{
 width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);
 display:grid;place-items:center;flex:none;
}
.card-icon svg{width:22px;height:22px;}
.tag{
 display:inline-block;margin-top:14px;padding:4px 11px;border-radius:999px;
 font-size:12.5px;color:#3f625c;background:#eff4f1;border:1px solid #e0e8e3;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag-row .tag{margin-top:0;}

/* 两栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.split--narrow{grid-template-columns:.9fr 1.1fr;}
.spec-list dt{font-weight:700;color:var(--ink);font-size:15.5px;margin-top:20px;}
.spec-list dt:first-child{margin-top:0;}
.spec-list dd{margin:6px 0 0;color:var(--muted);font-size:14.6px;}
.panel{
 background:#0c1a18;color:#d7e8e4;border-radius:var(--radius-lg);padding:26px;
 box-shadow:var(--shadow-md);border:1px solid rgba(255,255,255,.1);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14);}
.panel-head b{color:#fff;font-size:15.5px;}
.panel-head span{font-size:12.5px;color:#7fa9a2;letter-spacing:.6px;}
.panel-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14px;}
.panel-row:last-child{border-bottom:0;padding-bottom:0;}
.panel-row span{color:#8fb0aa;flex:none;}
.panel-row b{color:#fff;font-weight:600;text-align:right;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;
 box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.28);}
.flow-num{font-size:12.5px;font-weight:700;letter-spacing:1.4px;color:var(--primary);}
.flow-step h3{font-size:16.5px;margin:10px 0 8px;}
.flow-step p{font-size:14.2px;color:var(--muted);}
.demo-figure{margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.demo-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.demo-figure figcaption{padding:14px 20px;background:#fff;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);}

/* 时间线 */
.timeline-wrap{display:grid;grid-template-columns:.66fr 1.34fr;gap:48px;align-items:start;}
.timeline{position:relative;padding-left:28px;border-left:2px solid #e2e8e4;}
.timeline-item{position:relative;padding-bottom:30px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
 content:"";position:absolute;left:-37px;top:7px;width:12px;height:12px;border-radius:50%;
 background:#fff;border:2px solid var(--primary);box-shadow:0 0 0 4px #f7f5f0;
}
.timeline-date{font-size:12.8px;font-weight:700;letter-spacing:.8px;color:var(--accent);}
.timeline-item h3{font-size:16.5px;margin:6px 0 8px;}
.timeline-item p{font-size:14.4px;color:var(--muted);}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{border-radius:var(--radius-lg);padding:28px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);}
.compare-card--muted{background:#f2f0ea;border-color:#e5e1d6;box-shadow:none;}
.compare-card h3{font-size:17px;margin-bottom:16px;}
.list-check li,.list-plain li{position:relative;padding:9px 0 9px 26px;font-size:14.6px;color:#3d5651;border-bottom:1px dashed #e6ebe7;}
.list-check li:last-child,.list-plain li:last-child{border-bottom:0;}
.list-check li::before{
 content:"";position:absolute;left:0;top:17px;width:12px;height:7px;
 border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg);
}
.list-plain li::before{content:"";position:absolute;left:2px;top:19px;width:9px;height:2px;background:#a8b3ae;}
.compare-card--muted .list-plain li{color:#6a6f66;}

/* 场景条 */
.scene-list{display:grid;gap:14px;}
.scene-item{
 display:flex;gap:18px;align-items:flex-start;padding:22px 24px;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);
 transition:transform .2s,box-shadow .2s,border-color .2s;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.28);}
.scene-item h3{font-size:16.5px;margin-bottom:6px;}
.scene-item p{font-size:14.4px;color:var(--muted);}

/* 数据与评价 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px;}
.stat-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);}
.stat-box strong{display:block;font-size:26px;color:var(--primary-dark);line-height:1.2;}
.stat-box span{font-size:13.4px;color:var(--muted);}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);}
.quote-card p{font-size:14.6px;color:#3d5651;}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13.4px;color:var(--muted);}
.quote-avatar{width:34px;height:34px;border-radius:50%;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;font-weight:700;font-size:13px;flex:none;}

/* FAQ */
.faq-list{max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0 22px;margin-bottom:12px;box-shadow:var(--shadow-sm);transition:border-color .2s;}
.faq-item[open]{border-color:rgba(15,118,110,.34);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 0;font-weight:600;font-size:15.6px;color:var(--ink);
 display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--primary);font-size:20px;line-height:1;flex:none;}
.faq-item[open] summary::after{content:"–";}
.faq-body{padding:0 0 20px;color:var(--muted);font-size:14.8px;}

/* CTA 收口 */
.cta-band{
 background:linear-gradient(120deg,#0c1a18 0%,#123330 100%);
 border-radius:var(--radius-lg);padding:44px;color:#e6f1ee;
 display:flex;align-items:center;justify-content:space-between;gap:32px;
 box-shadow:var(--shadow-md);
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);color:#fff;margin-bottom:10px;}
.cta-band p{color:#a9c2bd;font-size:15px;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}

/* 底部固定条 */
.sticky-bar{
 position:fixed;left:0;right:0;bottom:0;z-index:130;
 background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
 border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(12,26,24,.08);
}
.sticky-bar .container{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:76px;}
.sticky-text{display:flex;flex-direction:column;font-size:14.4px;color:var(--ink);line-height:1.5;}
.sticky-text small{font-size:12.6px;color:var(--muted);}

/* 页脚 */
.site-footer{background:var(--ink);color:#c6d8d4;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:44px;padding-bottom:44px;}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text small{color:#7f9c96;}
.footer-brand p{color:#93aca7;font-size:14.5px;margin-top:16px;max-width:400px;}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 12px;}
.footer-col a{display:block;color:#a9c2bd;font-size:14.5px;padding:6px 0;transition:color .2s;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
 display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#7f9c96;
}

/* 响应式 */
@media screen and (max-width:1024px){
 .hero{padding:140px 0 72px;}
 .hero-grid{grid-template-columns:1fr;gap:36px;}
 .hero-poster{max-width:560px;}
 .flow{grid-template-columns:repeat(2,1fr);}
 .split,.split--narrow,.timeline-wrap,.compare{grid-template-columns:1fr;gap:32px;}
 .quote-grid{grid-template-columns:1fr 1fr;}
 .stat-strip{grid-template-columns:1fr 1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
}
@media screen and (max-width:860px){
 .nav-toggle{display:flex;}
 .nav-cta{display:none;}
 .nav-menu{
  position:absolute;top:74px;left:0;right:0;margin:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-radius:18px;padding:12px;
  border:1px solid var(--line);box-shadow:var(--shadow-md);
  display:none;
 }
 .nav-menu.is-open{display:flex;}
 .nav-menu a{padding:12px 16px;border-radius:12px;font-size:15px;}
 .logo-text{font-size:15px;}
 .section{padding:64px 0;}
 .hero h1{font-size:clamp(25px,6vw,34px);}
}
@media screen and (max-width:600px){
 .container{padding:0 18px;}
 .site-header{padding:12px 14px 0;}
 .nav-capsule{height:58px;padding:0 10px 0 14px;}
 .hero{padding:128px 0 60px;}
 .hero-stats{grid-template-columns:1fr 1fr;gap:14px;}
 .flow{grid-template-columns:1fr;}
 .quote-grid,.stat-strip{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;}
 .card,.quote-card,.scene-item{padding:20px;}
 .cta-band{padding:28px 22px;}
 .sticky-bar .container{min-height:68px;padding:10px 18px;}
 .sticky-text{font-size:13.4px;}
 .sticky-text small{display:none;}
 .btn{min-height:44px;}
 .logo-text{font-size:14px;}
 .logo-text small{display:none;}
}

/* roulang page: category2 */
:root{
 --ink:#0c1a18;
 --ink-2:#132a27;
 --primary:#0f766e;
 --primary-dark:#0a5751;
 --primary-soft:#e2f2ee;
 --accent:#a97c2f;
 --bg:#f7f5f0;
 --surface:#ffffff;
 --text:#1b2a28;
 --muted:#5f7570;
 --line:#e3e8e4;
 --radius-lg:16px;
 --radius:12px;
 --shadow-sm:0 1px 2px rgba(12,26,24,.05),0 8px 22px rgba(12,26,24,.05);
 --shadow-md:0 16px 38px rgba(12,26,24,.12);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;padding-bottom:78px;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
 font-size:16px;line-height:1.78;color:var(--text);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35;color:var(--ink);}
p{margin:0 0 14px;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible{outline:3px solid rgba(15,118,110,.45);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* 网格 */
.grid-x{display:flex;flex-flow:row wrap;margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;flex:0 0 auto;width:100%;margin-bottom:24px;}
@media screen and (min-width:768px){
 .grid-x>.cell.medium-6{width:50%;}
 .grid-x>.cell.medium-4{width:33.3333%;}
}
@media screen and (min-width:1024px){
 .grid-x>.cell.large-4{width:33.3333%;}
 .grid-x>.cell.large-5{width:41.6667%;}
 .grid-x>.cell.large-6{width:50%;}
 .grid-x>.cell.large-7{width:58.3333%;}
 .grid-x>.cell.large-8{width:66.6667%;}
}

/* 导航 */
.site-header{position:sticky;top:0;z-index:120;padding:16px 20px 0;pointer-events:none;}
.nav-capsule{
 pointer-events:auto;max-width:var(--container);margin:0 auto;height:64px;
 display:flex;align-items:center;gap:18px;padding:0 12px 0 20px;
 border-radius:999px;background:rgba(255,255,255,.9);
 -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
 border:1px solid rgba(15,118,110,.14);
 box-shadow:0 10px 30px rgba(12,26,24,.08);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-capsule{box-shadow:0 16px 40px rgba(12,26,24,.16);background:rgba(255,255,255,.96);}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);white-space:nowrap;}
.logo-mark{
 width:32px;height:32px;border-radius:10px;flex:none;
 background:linear-gradient(135deg,var(--primary),#0b4f49);
 display:grid;place-items:center;color:#eaf6f3;font-size:13px;font-weight:700;letter-spacing:0;
}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:#37514c;transition:background .2s,color .2s;}
.nav-menu a:hover{background:rgba(15,118,110,.09);color:var(--primary-dark);}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(15,118,110,.28);}
.nav-cta{margin-left:6px;}
.nav-toggle{
 display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
 border:1px solid rgba(15,118,110,.2);background:#fff;color:var(--primary-dark);
 align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
 font-size:15px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,118,110,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,118,110,.32);}
.btn-outline{border-color:rgba(15,118,110,.4);color:var(--primary-dark);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.08);}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--primary-dark);box-shadow:0 10px 24px rgba(0,0,0,.16);}
.btn-light:hover{background:#eaf6f3;color:var(--primary-dark);transform:translateY(-2px);}

/* 分类首屏 */
.page-hero{position:relative;margin-top:-80px;padding:152px 0 86px;background:#0a1817;color:#eef7f5;overflow:hidden;}
.page-hero-media{position:absolute;inset:0;z-index:0;}
.page-hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.page-hero::after{
 content:"";position:absolute;inset:0;z-index:1;
 background:linear-gradient(112deg,rgba(8,21,20,.96) 0%,rgba(8,21,20,.86) 46%,rgba(8,21,20,.5) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.eyebrow-chip{
 display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
 font-size:13px;letter-spacing:.6px;color:#a9e2d8;background:rgba(15,118,110,.22);
 border:1px solid rgba(120,220,205,.34);
}
.eyebrow-chip i{width:6px;height:6px;border-radius:50%;background:#4fd1c0;display:block;font-style:normal;}
.page-hero h1{font-size:clamp(28px,4.1vw,42px);line-height:1.28;margin:22px 0 16px;color:#fff;letter-spacing:.3px;}
.page-lead{font-size:16px;line-height:1.85;color:#c2d8d4;max-width:680px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
 padding:6px 14px;border-radius:999px;font-size:13px;color:#cfe8e3;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.portrait-frame{
 position:relative;max-width:380px;margin-left:auto;aspect-ratio:3/4;
 border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.22);
 box-shadow:0 30px 60px rgba(0,0,0,.42);
}
.portrait-frame img{width:100%;height:100%;object-fit:cover;}
.portrait-meta{
 position:absolute;left:14px;right:14px;bottom:14px;display:flex;align-items:center;gap:10px;
 padding:10px 14px;border-radius:10px;font-size:13px;color:#d6ece7;
 background:rgba(10,24,23,.74);border:1px solid rgba(255,255,255,.16);
 -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.portrait-meta i{width:7px;height:7px;border-radius:50%;background:#4fd1c0;font-style:normal;display:block;}

/* 板块 */
.section{padding:88px 0;}
.section--alt{background:#fbfaf6;}
.section--paper{background:#fff;}
.section--dark{background:var(--ink);color:#e6f1ee;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;letter-spacing:1.6px;color:var(--primary);text-transform:uppercase;}
.section-eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--primary);display:block;}
.section-head h2{font-size:clamp(23px,2.6vw,31px);margin:14px 0 12px;}
.section-head p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0;}
.section--dark .section-eyebrow{color:#4fd1c0;}
.section--dark .section-eyebrow::before{background:#4fd1c0;}
.section--dark .section-head h2{color:#fff;}
.section--dark .section-head p{color:#9dbab5;}

/* 卡片 */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);padding:28px 26px;height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.card-icon{
 width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
 background:var(--primary-soft);color:var(--primary-dark);margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.8px;line-height:1.8;color:var(--muted);margin:0;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
 display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
 font-size:12.5px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark);
}
.tag--accent{background:#f6efdf;color:#8a6420;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
 position:relative;padding:26px 22px;border-radius:var(--radius);background:#fff;
 border:1px solid var(--line);box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.step-num{
 width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
 background:var(--primary);color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* 技巧卡片 */
.tip-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 overflow:hidden;box-shadow:var(--shadow-sm);height:100%;display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.tip-media{margin:0;aspect-ratio:16/10;overflow:hidden;background:#e8eeeb;}
.tip-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.tip-card:hover .tip-media img{transform:scale(1.05);}
.tip-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tip-body h3{font-size:17px;line-height:1.5;}
.tip-body p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0;flex:1;}
.tip-foot{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px;}

/* 数据条 */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.stat{padding:26px 22px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);}
.stat strong{display:block;font-size:30px;line-height:1.2;color:#fff;letter-spacing:.5px;}
.stat span{font-size:13px;color:#9dbab5;}

/* 对照 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.compare-col{padding:28px 26px;border-radius:var(--radius-lg);border:1px solid var(--line);background:#fff;}
.compare-col--bad{border-color:rgba(169,124,47,.32);background:#fdf8ef;}
.compare-col--good{border-color:rgba(15,118,110,.3);background:var(--primary-soft);}
.compare-col h3{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.compare-col h3::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--accent);}
.compare-col--good h3::before{background:var(--primary);}
.compare-col li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;line-height:1.75;color:#2a3d3a;}
.compare-col li:last-child{margin-bottom:0;}
.compare-col li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:rgba(169,124,47,.75);}
.compare-col--good li::before{background:rgba(15,118,110,.75);}

/* 内容列表 */
.post-card{
 position:relative;height:100%;display:flex;flex-direction:column;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 24px 20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.3);}
.post-card h3{font-size:17px;line-height:1.55;margin-bottom:10px;}
.post-card:hover h3{color:var(--primary-dark);}
.post-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin:0;flex:1;}
.post-meta{
 display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;padding-top:14px;
 border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted);
}
.empty-state{
 padding:34px 26px;border-radius:var(--radius);border:1px dashed var(--line);
 background:#fff;color:var(--muted);text-align:center;font-size:15px;
}

/* FAQ */
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 26px;margin-bottom:14px;box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(15,118,110,.3);box-shadow:var(--shadow-md);}
.faq-item h3{font-size:16.5px;margin-bottom:9px;}
.faq-item p{margin:0;font-size:14.8px;line-height:1.85;color:var(--muted);}

/* 收口 */
.cta-panel{
 position:relative;overflow:hidden;border-radius:var(--radius-lg);
 padding:56px 48px;color:#eaf6f3;background:#0a3f39;
}
.cta-panel-bg{position:absolute;inset:0;z-index:0;}
.cta-panel-bg img{width:100%;height:100%;object-fit:cover;opacity:.3;}
.cta-panel::after{
 content:"";position:absolute;inset:0;z-index:1;
 background:linear-gradient(110deg,rgba(10,63,57,.95),rgba(10,63,57,.78));
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:clamp(22px,2.5vw,29px);color:#fff;margin-bottom:10px;}
.cta-inner p{margin:0;color:#bfe0d9;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.guarantee{display:flex;flex-wrap:wrap;gap:22px;position:relative;z-index:2;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);}
.guarantee span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#bfe0d9;}
.guarantee span::before{content:"";width:7px;height:7px;border-radius:50%;background:#4fd1c0;display:block;}

/* 底部固定转化条 */
.sticky-bar{
 position:fixed;left:0;right:0;bottom:0;z-index:150;
 background:rgba(12,26,24,.95);border-top:1px solid rgba(255,255,255,.13);
 -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.sticky-bar-inner{
 max-width:var(--container);margin:0 auto;padding:12px 24px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-bar p{margin:0;font-size:14px;color:#cfe8e3;}
.sticky-bar strong{color:#fff;font-weight:700;}

/* 页脚 */
.site-footer{background:var(--ink);color:#b9cfca;padding:64px 0 28px;}
.footer-grid{
 display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;
 padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .logo{color:#fff;}
.site-footer .logo-text small{color:#7f9a95;}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#93ada8;margin:18px 0 0;max-width:390px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.4px;}
.footer-col a{display:block;font-size:14.5px;color:#a7c0bb;padding:5px 0;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding-top:22px;font-size:13px;color:#7f9a95;}

/* 响应式 */
@media screen and (max-width:1023px){
 .nav-menu{
  position:absolute;top:74px;left:0;right:0;margin-left:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;
  box-shadow:var(--shadow-md);display:none;
 }
 .nav-menu.is-open{display:flex;}
 .nav-menu a{padding:12px 16px;border-radius:12px;font-size:15px;}
 .nav-cta{display:none;}
 .nav-toggle{display:flex;}
 .nav-capsule{position:relative;padding:0 10px 0 16px;gap:10px;}
 .portrait-frame{margin:36px auto 0;max-width:330px;}
}
@media screen and (max-width:900px){
 .steps{grid-template-columns:repeat(2,1fr);}
 .stats-band{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
 .container{padding:0 18px;}
 .section{padding:56px 0;}
 .page-hero{padding:126px 0 60px;}
 .page-hero h1{font-size:27px;}
 .page-lead{font-size:15px;}
 .hero-actions{gap:10px;}
 .hero-actions .btn{flex:1 1 auto;}
 .compare{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
 .cta-panel{padding:34px 24px;}
 .cta-inner{flex-direction:column;align-items:flex-start;}
 .sticky-bar-inner{flex-direction:column;align-items:stretch;gap:10px;text-align:center;}
 .sticky-bar .btn{width:100%;}
 .card,.post-card{padding:22px 20px;}
}
@media screen and (max-width:520px){
 .steps{grid-template-columns:1fr;}
 .stats-band{grid-template-columns:1fr;}
 .logo-text small{display:none;}
 .footer-bottom{flex-direction:column;}
}

/* roulang page: category3 */
:root{
  --ink:#0c1a18;
  --ink-2:#132a27;
  --primary:#0f766e;
  --primary-dark:#0a5751;
  --primary-soft:#e2f2ee;
  --accent:#a97c2f;
  --bg:#f7f5f0;
  --surface:#ffffff;
  --text:#1b2a28;
  --muted:#5f7570;
  --line:#e3e8e4;
  --radius-lg:16px;
  --radius:12px;
  --shadow-sm:0 1px 2px rgba(12,26,24,.05),0 8px 22px rgba(12,26,24,.05);
  --shadow-md:0 16px 38px rgba(12,26,24,.12);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding-bottom:96px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.3;}
h1{letter-spacing:.4px;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;border:0;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:.94em;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:120;padding:16px 20px 0;pointer-events:none;}
.nav-capsule{
  pointer-events:auto;position:relative;max-width:var(--container);margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;padding:0 12px 0 20px;
  border-radius:999px;background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(15,118,110,.14);
  box-shadow:0 10px 30px rgba(12,26,24,.08);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck .nav-capsule{box-shadow:0 16px 40px rgba(12,26,24,.16);background:rgba(255,255,255,.96);}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--ink);white-space:nowrap;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--primary),#0b4f49);
  display:grid;place-items:center;color:#eaf6f3;font-size:13px;font-weight:700;
}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1px;line-height:1;}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:#37514c;transition:background .2s,color .2s;}
.nav-menu a:hover{background:rgba(15,118,110,.09);color:var(--primary-dark);}
.nav-menu a.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(15,118,110,.28);}
.nav-cta{margin-left:6px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(15,118,110,.2);background:#fff;color:var(--primary-dark);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,118,110,.26);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,118,110,.32);}
.btn-outline{border-color:rgba(15,118,110,.4);color:var(--primary-dark);background:#fff;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06);}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;transform:translateY(-2px);}

/* ===== 首屏 ===== */
.page-hero{position:relative;overflow:hidden;margin-top:-80px;padding:154px 0 128px;background:#0a1817;color:#eef7f5;}
.page-hero__bg{position:absolute;inset:0;z-index:0;}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(112deg,rgba(8,21,20,.96) 0%,rgba(8,21,20,.84) 48%,rgba(8,21,20,.48) 100%);
}
.page-hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:48px;align-items:center;}
.region-tag{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  font-size:13px;letter-spacing:.6px;color:#a9e2d8;background:rgba(15,118,110,.22);
  border:1px solid rgba(120,220,205,.32);
}
.region-tag i{width:6px;height:6px;border-radius:50%;background:#4fd1c0;display:block;}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,42px);line-height:1.26;margin:20px 0 16px;}
.page-hero__lead{color:#c2d8d4;font-size:16px;line-height:1.85;max-width:640px;}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags li{
  padding:6px 14px;border-radius:999px;font-size:13px;color:#cfe8e3;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.version-panel{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);padding:26px 24px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 20px 50px rgba(0,0,0,.28);
}
.version-panel__head{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#a9c6c1;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14);}
.version-panel__head .dot{width:8px;height:8px;border-radius:50%;background:#4fd1c0;box-shadow:0 0 0 4px rgba(79,209,192,.16);}
.version-panel__head strong{margin-left:auto;font-size:19px;color:#fff;letter-spacing:.5px;}
.version-list{margin:16px 0 0;padding:0;}
.version-list > div{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14px;}
.version-list > div:last-child{border-bottom:0;}
.version-list dt{color:#9dbab5;margin:0;}
.version-list dd{margin:0;color:#eaf6f3;font-weight:600;}
.version-panel__note{margin-top:16px;font-size:12.5px;color:#9dbab5;line-height:1.7;}
.version-panel__note code{color:#e3c98f;background:rgba(169,124,47,.18);padding:2px 6px;border-radius:6px;}
.version-panel__btn{margin-top:18px;width:100%;background:transparent;border-color:rgba(255,255,255,.4);color:#e7f5f2;}
.version-panel__btn:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ===== 数据条 ===== */
.stat-strip{position:relative;z-index:5;margin-top:-58px;}
.stat-grid{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);display:grid;grid-template-columns:repeat(4,1fr);padding:26px 8px;
}
.stat-item{text-align:center;padding:6px 12px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item strong{display:block;font-size:28px;font-weight:800;color:var(--primary);line-height:1.2;}
.stat-item span{font-size:13.5px;color:var(--muted);}

/* ===== 板块 ===== */
.section{padding:88px 0;}
.section--alt{background:#fbfaf6;}
.section--paper{background:#fff;}
.section--dark{background:var(--ink);color:#dcebe7;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--row{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;max-width:none;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;
  letter-spacing:1.4px;color:var(--primary);
}
.section-eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:2px;}
.section-head h2{font-size:clamp(23px,2.6vw,31px);margin:14px 0 12px;}
.section-sub{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:660px;}

/* ===== 卡片 ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:26px 24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.35);}
.card h3{font-size:18px;margin:16px 0 10px;}
.card p{color:var(--muted);font-size:15px;line-height:1.8;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary-dark);border:1px solid rgba(15,118,110,.18);
}
.card-icon svg{width:22px;height:22px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12.5px;
  background:var(--primary-soft);color:var(--primary-dark);border:1px solid rgba(15,118,110,.18);
}
.tag--soft{background:#fbf4e6;color:#8a6420;border-color:rgba(169,124,47,.24);}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--primary-dark);}
.card-link::after{content:"→";transition:transform .2s ease;}
.card-link:hover::after{transform:translateX(4px);}

/* ===== 时间线 ===== */
.timeline{position:relative;padding-left:28px;border-left:2px solid rgba(15,118,110,.22);}
.timeline-item{position:relative;padding:0 0 34px 8px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{
  position:absolute;left:-37px;top:6px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);box-shadow:0 0 0 4px rgba(15,118,110,.1);
}
.timeline-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;}
.ver{font-weight:800;font-size:16px;color:var(--primary-dark);letter-spacing:.4px;}
.date{font-size:13px;color:var(--muted);}
.vbadge{padding:2px 10px;border-radius:999px;font-size:12px;background:#fbf4e6;color:#8a6420;border:1px solid rgba(169,124,47,.24);}
.timeline-body h3{font-size:17px;margin:0 0 8px;}
.timeline-body p{color:var(--muted);font-size:15px;line-height:1.8;}

/* ===== 校验流程 ===== */
.step-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px 24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,118,110,.35);}
.step-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--primary);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 8px 18px rgba(15,118,110,.28);
}
.step-card h3{font-size:17px;margin:16px 0 8px;}
.step-card p{color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ===== 条目摘录 ===== */
.entry-card{padding:0;overflow:hidden;}
.entry-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#eef2ef;}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .thumb img{transform:scale(1.04);}
.entry-card .entry-body{padding:22px 24px 26px;}
.entry-card h3{margin:0 0 10px;font-size:18px;}
.entry-card p{color:var(--muted);font-size:15px;line-height:1.8;}

/* ===== 发布列表 ===== */
.post-card h3{font-size:17px;margin:0 0 10px;line-height:1.55;}
.post-card h3 a:hover{color:var(--primary-dark);}
.post-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px;font-size:13px;color:var(--muted);}
.post-meta span{padding:3px 10px;border-radius:999px;background:#f2f6f4;border:1px solid var(--line);}
.empty-note{padding:24px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);background:#fff;}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:48px;align-items:start;}
.faq-intro h2{font-size:clamp(23px,2.6vw,31px);margin:14px 0 12px;}
.faq-intro p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.faq-list{display:grid;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s;}
.faq-item:hover{border-color:rgba(15,118,110,.3);box-shadow:var(--shadow-md);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 54px 18px 22px;font-weight:600;color:var(--ink);font-size:15.5px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item p{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ===== 收口转化 ===== */
.cta-band{background:var(--ink);color:#dcebe7;padding:64px 0;}
.cta-band__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin:0 0 10px;}
.cta-band p{color:#a9c6c1;font-size:15.5px;line-height:1.85;max-width:640px;margin:0;}

/* ===== 底部固定条 ===== */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:130;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);box-shadow:0 -10px 30px rgba(12,26,24,.08);
}
.sticky-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 24px;}
.sticky-bar__text{display:flex;flex-direction:column;line-height:1.4;min-width:0;}
.sticky-bar__text strong{font-size:15px;color:var(--ink);}
.sticky-bar__text span{font-size:12.5px;color:var(--muted);}
.sticky-bar__actions{display:flex;gap:10px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{background:#0a1817;color:#9dbab5;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-text small{color:#7f9b96;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8fa9a4;max-width:420px;}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 14px;}
.footer-col a{display:block;font-size:14px;color:#8fa9a4;padding:5px 0;transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:#7fe0d1;padding-left:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:22px;font-size:13px;color:#76918c;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .page-hero__inner{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:146px 0 118px;}
  .version-panel{max-width:520px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:980px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .section{padding:74px 0;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-menu{
    display:none;position:absolute;top:76px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    background:rgba(255,255,255,.98);border-radius:18px;padding:12px;
    border:1px solid rgba(15,118,110,.14);box-shadow:var(--shadow-md);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{padding:12px 14px;border-radius:12px;font-size:15px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:18px;}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(3){border-right:1px solid var(--line);}
}
@media (max-width:768px){
  .page-hero{padding:132px 0 112px;}
  .page-hero__lead{font-size:15.5px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:52px 0;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .site-header{padding:12px 12px 0;}
  .nav-capsule{height:58px;padding:0 10px 0 14px;gap:10px;}
  .logo{font-size:14px;}
  .logo-text small{display:none;}
  .stat-grid{padding:18px 4px;}
  .stat-item strong{font-size:22px;}
  .stat-item{padding:6px 8px;}
  .timeline{padding-left:20px;}
  .timeline-dot{left:-29px;}
  .sticky-bar__inner{padding:10px 16px;gap:10px;}
  .sticky-bar__text span{display:none;}
  .btn{min-height:44px;padding:0 16px;font-size:14px;}
  .btn-sm{min-height:38px;padding:0 14px;}
  .card,.step-card{padding:22px 18px;}
  .entry-card{padding:0;}
  .entry-card .entry-body{padding:20px 18px 22px;}
}