/* ===== 4.com 翡翠数码阁 · 墨绿金轻奢 ===== */
:root{
  --emerald:#34d399;--gold:#d4b06a;--gold-2:#ecd9a8;
  --grad:linear-gradient(135deg,#b98e46,#d4b06a 50%,#efdcb0);
  --bg:#071410;--card:#0d201a;--card-2:#0a1a15;
  --border:rgba(212,176,106,.14);
  --text:#d5e5dd;--strong:#f2faf6;--muted:#7d968b;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --shadow:0 2px 6px rgba(0,0,0,.4),0 14px 34px rgba(0,0,0,.4);
  --radius:14px;
}
*{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:1.85;font-size:16px;
  background-image:radial-gradient(1000px 420px at 80% -110px,rgba(52,211,153,.08),transparent),
                   radial-gradient(760px 340px at 8% -80px,rgba(212,176,106,.07),transparent);
  background-attachment:fixed}
a{color:var(--gold);text-decoration:none;transition:color .25s}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
::selection{background:rgba(52,211,153,.25)}

.site-header{background:rgba(7,20,16,.8);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-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:3px;
  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:8px;padding:7px 16px;border-radius:999px;color:var(--muted);font-size:14.5px;letter-spacing:1px;transition:all .25s}
.nav a:hover{color:var(--emerald);background:rgba(52,211,153,.08)}
.nav a.active{color:#0c1a14;background:var(--grad);font-weight:600;box-shadow:0 4px 14px rgba(212,176,106,.28)}

.crumb{font-size:13px;color:var(--muted);margin:18px 0;letter-spacing:.5px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--gold)}

.intro{background:linear-gradient(165deg,#0f2a20 0%,#0a1a15 55%,#071410 100%);
  border:1px solid var(--border);border-radius:var(--radius);padding:42px 38px;margin:18px 0;
  box-shadow:var(--shadow);position:relative;overflow:hidden}
.intro::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad)}
.intro::after{content:"";position:absolute;right:-70px;top:-70px;width:250px;height:250px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,211,153,.14),transparent 70%)}
.intro h1{font-family:var(--serif);font-size:30px;font-weight:700;letter-spacing:6px;color:var(--strong);margin-bottom:10px}
.intro h1::after{content:"";display:block;width:56px;height:2px;margin-top:14px;background:var(--grad);border-radius:2px}
.intro p{color:var(--muted);font-size:14.5px;max-width:660px;letter-spacing:.5px}

.section-title{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:2px;color:var(--strong);
  margin:30px 0 16px;display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:26px;height:2px;background:var(--grad);border-radius:2px;flex:none}
.section-title small{font-size:12.5px;color:var(--muted);font-weight:400;letter-spacing:1px;
  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;box-shadow:var(--shadow);counter-reset:item}
.list-item{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:17px 22px;
  border-bottom:1px solid var(--border);transition:background .25s}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:rgba(52,211,153,.05)}
.list-item a{color:var(--text);font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:flex;align-items:center;gap:12px;min-width:0;letter-spacing:.5px}
.list-item a::before{counter-increment:item;content:counter(item,decimal-leading-zero);flex:none;
  font-family:var(--serif);font-size:13px;font-weight:700;color:var(--emerald);opacity:.85;min-width:24px}
.list-item a:hover{color:var(--gold-2)}
.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:26px 0;font-size:14px}
.pagination a{padding:7px 18px;border-radius:999px;background:var(--card);border:1px solid var(--border);
  color:var(--text);letter-spacing:1px;transition:all .25s}
.pagination a:hover{background:var(--grad);color:#0c1a14;border-color:transparent}
.pagination span{color:var(--muted)}

.article{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:38px 36px;margin-bottom:18px;box-shadow:var(--shadow)}
.article h1{font-family:var(--serif);font-size:27px;line-height:1.5;letter-spacing:1.5px;color:var(--strong);margin-bottom:14px}
.article .meta{font-size:13px;color:var(--muted);letter-spacing:1px;border-bottom:1px solid var(--border);
  padding-bottom:16px;margin-bottom:24px}
.article .meta span{margin-right:18px}
.article .content p{margin-bottom:16px;color:#bccfc5;letter-spacing:.4px}
.article .content h2{font-family:var(--serif);font-size:20px;letter-spacing:1px;color:var(--strong);
  margin:30px 0 14px;padding-left:14px;position:relative}
.article .content h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:3px;background:var(--grad)}
.article .content ul{padding-left:22px;margin-bottom:16px;color:#bccfc5}

.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:16px 22px;flex-wrap:wrap;box-shadow:var(--shadow)}
.prevnext a{color:var(--muted);letter-spacing:.5px}
.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:28px 22px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s}
.col-card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--grad);
  transform:scaleX(0);transform-origin:left;transition:transform .3s}
.col-card h3{font-family:var(--serif);font-size:18px;letter-spacing:3px;margin-bottom:8px;color:var(--strong)}
.col-card p{font-size:13px;color:var(--muted);letter-spacing:.5px}
.col-card:hover{transform:translateY(-5px);border-color:rgba(212,176,106,.4)}
.col-card:hover::before{transform:scaleX(1)}

.site-footer{text-align:center;font-size:13px;color:var(--muted);letter-spacing:2px;
  padding:34px 16px;margin-top:14px;border-top:1px solid var(--border)}

@media (max-width:640px){
  .site-header .wrap{height:56px}
  .nav a{margin-left:2px;padding:6px 10px;font-size:13.5px;letter-spacing:0}
  .logo{font-size:18px;letter-spacing:2px}
  .intro{padding:26px 20px}
  .intro h1{font-size:22px;letter-spacing:3px}
  .cols{grid-template-columns:1fr}
  .list-item{padding:15px 16px}
  .list-item a{font-size:15px}
  .article{padding:24px 18px}
  .article h1{font-size:21px}
}


/* ===== 模板变体：导航N4 描边幽灵按钮 + 页脚F4 ===== */
.nav a{border:1px solid var(--border);border-radius:8px}
.nav a.active{border-color:transparent}
.site-footer{border-top:1px solid var(--border);margin-top:20px;padding-top:30px}
.f4-row{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-bottom:22px;border-bottom:1px solid var(--border)}
.f4-brand{font-family:var(--serif);font-size:19px;letter-spacing:4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.f4-links{display:flex;gap:22px;flex-wrap:wrap}
.f4-links a{color:var(--muted);font-size:13.5px;letter-spacing:1.5px}
.f4-links a:hover{color:var(--emerald)}
.f4-copy{text-align:center;font-size:12.5px;color:var(--muted);letter-spacing:2px;padding:18px 16px 6px}
.article .content p{text-align:justify}
@media (max-width:640px){.nav a{padding:6px 9px}}