/* ===== 9.com 黑金数码馆 · 纯黑尊金奢华 ===== */
:root{
  --gold:#d4af37;--gold-2:#f0d98c;--gold-dim:rgba(212,175,55,.55);
  --grad:linear-gradient(135deg,#a8852a,#d4af37 45%,#f0d98c);
  --bg:#000000;--card:#0c0c0c;--card-2:#060606;
  --border:rgba(212,175,55,.2);
  --text:#d6d3c8;--strong:#f7f4ea;--muted:#8a8674;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --radius:3px;
}
*{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:1.9;font-size:16px;
  background-image:radial-gradient(900px 400px at 50% -160px,rgba(212,175,55,.08),transparent);
  background-attachment:fixed}
a{color:var(--gold);text-decoration:none;transition:color .25s}
.wrap{max-width:1000px;margin:0 auto;padding:0 22px}
::selection{background:rgba(212,175,55,.3)}

.site-header{background:rgba(0,0,0,.85);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:70px}
.logo{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:5px;
  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 16px;color:var(--muted);font-size:14px;letter-spacing:3px;
  border-bottom:1px solid transparent;transition:all .25s}
.nav a:hover{color:var(--gold-2)}
.nav a.active{color:var(--gold-2);border-bottom-color:var(--gold)}

.crumb{font-size:12.5px;color:var(--muted);margin:20px 0;letter-spacing:2px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--gold)}

.intro{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:48px 42px;margin:20px 0;position:relative;text-align:center}
.intro::before{content:"";position:absolute;inset:8px;border:1px solid rgba(212,175,55,.16);border-radius:2px;pointer-events:none}
.intro h1{font-family:var(--serif);font-size:32px;font-weight:700;letter-spacing:12px;color:var(--strong);margin-bottom:14px}
.intro h1::after{content:"";display:block;width:72px;height:1px;margin:18px auto 0;background:var(--grad)}
.intro p{color:var(--muted);font-size:14px;letter-spacing:3px;max-width:660px;margin:0 auto}

.section-title{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:5px;color:var(--strong);
  margin:34px 0 18px;text-align:center}
.section-title::after{content:"";display:block;width:48px;height:1px;background:var(--grad);margin:12px auto 0}
.section-title small{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:2px;margin-left:10px;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}

.list{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;counter-reset:item}
.list-item{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 26px;
  border-bottom:1px solid rgba(212,175,55,.1);transition:background .25s}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:rgba(212,175,55,.05)}
.list-item a{color:var(--text);font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:flex;align-items:center;gap:14px;min-width:0;letter-spacing:1.5px}
.list-item a::before{counter-increment:item;content:counter(item,decimal-leading-zero);flex:none;
  font-family:var(--serif);font-size:13px;color:var(--gold);min-width:26px;letter-spacing:1px}
.list-item a:hover{color:var(--gold-2)}
.list-item time{flex:none;font-size:12.5px;color:var(--muted);letter-spacing:1px;font-variant-numeric:tabular-nums}

.pagination{display:flex;justify-content:center;align-items:center;gap:14px;margin:30px 0;font-size:13.5px}
.pagination a{padding:8px 20px;border:1px solid var(--border);color:var(--text);letter-spacing:3px;transition:all .25s}
.pagination a:hover{background:var(--grad);color:#000;border-color:transparent}
.pagination span{color:var(--muted);letter-spacing:1px}

.article{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:44px 42px;margin-bottom:20px;position:relative}
.article::before{content:"";position:absolute;inset:8px;border:1px solid rgba(212,175,55,.12);border-radius:2px;pointer-events:none}
.article h1{font-family:var(--serif);font-size:28px;line-height:1.6;letter-spacing:3px;color:var(--strong);
  margin-bottom:16px;text-align:center}
.article .meta{font-size:12.5px;color:var(--muted);letter-spacing:2px;text-align:center;
  border-top:1px solid rgba(212,175,55,.14);border-bottom:1px solid rgba(212,175,55,.14);
  padding:12px 0;margin-bottom:30px}
.article .meta span{margin:0 12px}
.article .content p{margin-bottom:18px;color:#c8c4b6;letter-spacing:1px}
.article .content h2{font-family:var(--serif);font-size:20px;letter-spacing:3px;color:var(--gold-2);
  margin:34px 0 16px;padding-bottom:10px;border-bottom:1px solid rgba(212,175,55,.2)}
.article .content ul{padding-left:24px;margin-bottom:18px;color:#c8c4b6}

.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 26px;flex-wrap:wrap}
.prevnext a{color:var(--muted);letter-spacing:2px}
.prevnext a:hover{color:var(--gold-2)}

.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:32px 22px;text-align:center;position:relative;transition:border-color .3s,background .3s}
.col-card h3{font-family:var(--serif);font-size:18px;letter-spacing:5px;margin-bottom:10px;color:var(--strong)}
.col-card h3::after{content:"";display:block;width:30px;height:1px;background:var(--grad);margin:12px auto 0;
  transition:width .3s}
.col-card p{font-size:12.5px;color:var(--muted);letter-spacing:2px}
.col-card:hover{border-color:var(--gold-dim);background:#101008}
.col-card:hover h3::after{width:56px}

.site-footer{text-align:center;font-size:12.5px;color:var(--muted);letter-spacing:4px;
  padding:38px 16px;margin-top:16px;border-top:1px solid var(--border)}

@media (max-width:640px){
  .site-header .wrap{height:60px}
  .nav a{margin-left:0;padding:7px 9px;font-size:13px;letter-spacing:1px}
  .logo{font-size:18px;letter-spacing:3px}
  .intro{padding:32px 22px}
  .intro h1{font-size:23px;letter-spacing:6px}
  .cols{grid-template-columns:1fr}
  .list-item{padding:15px 18px}
  .list-item a{font-size:15px;letter-spacing:.5px}
  .article{padding:28px 22px}
  .article h1{font-size:22px}
}


/* ===== 模板变体：导航N9 金线分隔宽字距 + 页脚F9 ===== */
.nav a{border-radius:0;border-left:1px solid var(--border);margin-left:0;padding:6px 16px;letter-spacing:3px;border-bottom:none}
.nav a:first-child{border-left:none}
.site-footer{border-top:1px solid var(--border);margin-top:24px;padding:40px 16px 30px}
.f9-links{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;margin-bottom:22px}
.f9-links a{color:var(--muted);font-size:12.5px;letter-spacing:4px}
.f9-links a:hover{color:var(--gold-2)}
.f9-name{font-family:var(--serif);font-size:19px;letter-spacing:8px;text-align:center;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:14px}
.f9-copy{text-align:center;font-size:11px;color:var(--muted);letter-spacing:3px}
.article .content p{text-align:justify}
@media (max-width:640px){.nav a{padding:5px 8px;letter-spacing:1px}}