/* ===== 8.com 蓝海科技网 · 清新青蓝 ===== */
:root{
  --teal:#0d9488;--cyan:#0891b2;
  --grad:linear-gradient(120deg,#0d9488,#06b6d4);
  --bg:#f0f7f8;--card:#ffffff;
  --border:#d9eaee;--text:#1e3a3f;--strong:#0c272c;--muted:#6b8a91;
  --radius:18px;
  --shadow:0 2px 6px rgba(13,148,136,.06),0 12px 30px rgba(8,145,178,.09);
  --shadow-hover:0 8px 20px rgba(13,148,136,.14),0 20px 44px rgba(8,145,178,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.8;font-size:16px;
  background-image:radial-gradient(860px 380px at 88% -120px,rgba(6,182,212,.1),transparent),
                   radial-gradient(700px 320px at 2% -90px,rgba(13,148,136,.08),transparent);
  background-attachment:fixed}
a{color:var(--teal);text-decoration:none;transition:color .2s}
.wrap{max-width:1060px;margin:0 auto;padding:0 20px}
::selection{background:rgba(13,148,136,.16)}

.site-header{background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:21px;font-weight:800;letter-spacing:1px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.nav{display:flex;align-items:center}
.nav a{margin-left:6px;padding:8px 17px;border-radius:999px;color:var(--muted);font-size:14.5px;transition:all .2s}
.nav a:hover{color:var(--teal);background:rgba(13,148,136,.08)}
.nav a.active{color:#fff;background:var(--grad);box-shadow:0 4px 14px rgba(13,148,136,.32)}

.crumb{font-size:13px;color:var(--muted);margin:18px 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--teal)}

.intro{background:var(--grad);border:none;border-radius:24px;padding:46px 42px;margin:18px 0;color:#fff;
  box-shadow:0 16px 40px rgba(13,148,136,.3);position:relative;overflow:hidden}
.intro::before{content:"";position:absolute;right:-60px;top:-60px;width:230px;height:230px;border-radius:50%;
  background:rgba(255,255,255,.14)}
.intro::after{content:"";position:absolute;right:70px;bottom:-100px;width:170px;height:170px;border-radius:50%;
  background:rgba(255,255,255,.1)}
.intro h1{font-size:30px;font-weight:800;letter-spacing:3px;margin-bottom:12px}
.intro p{color:rgba(255,255,255,.88);font-size:15px;max-width:660px}

.section-title{font-size:19px;font-weight:800;color:var(--strong);margin:30px 0 16px;display:flex;align-items:center;gap:12px;letter-spacing:1px}
.section-title::before{content:"";width:24px;height:24px;border-radius:8px;flex:none;
  background:var(--grad);box-shadow:0 4px 10px rgba(13,148,136,.3)}
.section-title small{font-size:12.5px;color:var(--muted);font-weight:400}

.list{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);counter-reset:item}
.list-item{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 24px;
  border-bottom:1px solid var(--border);transition:background .2s}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:#f2fafb}
.list-item a{color:var(--text);font-size:16px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:flex;align-items:center;gap:12px;min-width:0}
.list-item a::before{counter-increment:item;content:counter(item);flex:none;width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
  color:var(--teal);background:rgba(13,148,136,.1);transition:all .2s}
.list-item:hover a::before{background:var(--grad);color:#fff}
.list-item a:hover{color:var(--teal)}
.list-item time{flex:none;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

.pagination{display:flex;justify-content:center;align-items:center;gap:12px;margin:28px 0;font-size:14px}
.pagination a{padding:8px 20px;border-radius:999px;background:var(--card);border:1px solid var(--border);
  color:var(--text);box-shadow:var(--shadow);transition:all .2s}
.pagination a:hover{background:var(--grad);color:#fff;border-color:transparent}
.pagination span{color:var(--muted)}

.article{background:var(--card);border:1px solid var(--border);border-radius:24px;
  padding:42px 40px;margin-bottom:18px;box-shadow:var(--shadow)}
.article h1{font-size:27px;line-height:1.55;color:var(--strong);margin-bottom:14px;font-weight:800}
.article .meta{font-size:13px;color:var(--muted);border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:26px}
.article .meta span{margin-right:16px}
.article .content p{margin-bottom:16px;color:#3d585e}
.article .content h2{font-size:20px;color:var(--strong);margin:32px 0 14px;padding:10px 0 10px 16px;position:relative;font-weight:800}
.article .content h2::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:6px;border-radius:6px;background:var(--grad)}
.article .content ul{padding-left:22px;margin-bottom:16px;color:#3d585e}

.prevnext{display:flex;justify-content:space-between;gap:14px;font-size:14px;background:var(--card);
  border:1px solid var(--border);border-radius:var(--radius);padding:18px 24px;flex-wrap:wrap;box-shadow:var(--shadow)}
.prevnext a{color:var(--muted)}
.prevnext a:hover{color:var(--teal)}

.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.col-card{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 22px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s}
.col-card::before{content:"";position:absolute;inset:auto 0 0 0;height:4px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .25s}
.col-card h3{font-size:17px;margin-bottom:8px;color:var(--strong);font-weight:700;letter-spacing:1px}
.col-card p{font-size:13px;color:var(--muted)}
.col-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.col-card:hover::before{transform:scaleX(1)}

.site-footer{text-align:center;font-size:13px;color:var(--muted);letter-spacing:1px;
  padding:34px 16px;margin-top:14px;border-top:1px solid var(--border)}

@media (max-width:640px){
  .site-header .wrap{height:58px}
  .nav a{margin-left:2px;padding:7px 11px;font-size:13.5px}
  .logo{font-size:18px}
  .intro{padding:30px 22px}
  .intro h1{font-size:24px}
  .cols{grid-template-columns:1fr}
  .list-item{padding:15px 16px}
  .list-item a{font-size:15px}
  .article{padding:26px 20px}
  .article h1{font-size:22px}
}


/* ===== 模板变体：导航N8 悬浮胶囊 + 页脚F8 ===== */
.nav a{transition:all .2s}
.nav a:hover{transform:translateY(-2px)}
.site-footer{padding:0 0 30px;margin-top:24px;border-top:none}
.f8-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 28px}
.f8-top{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;margin-bottom:10px}
.f8-top b{font-size:18px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.f8-links{display:flex;gap:18px;flex-wrap:wrap}
.f8-links a{color:var(--muted);font-size:13.5px}
.f8-links a:hover{color:var(--teal)}
.f8-desc{font-size:12.5px;color:var(--muted);margin-bottom:10px}
.f8-copy{font-size:12px;color:var(--muted);letter-spacing:1px;border-top:1px solid var(--border);padding-top:12px}
.article .content p{overflow-wrap:break-word}