/*
Theme Name: iStatistic CN Member Theme
Version: 15.0.0
Author: iStatistic
*/
:root{
  --bg:#ffffff;
  --paper:#ffffff;
  --ink:#18212b;
  --muted:#5d6b7a;
  --line:#e5e7eb;
  --accent:#2563eb;
  --accent-soft:#eff6ff;
}
*{box-sizing:border-box}
html{font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif}
body{margin:0;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit}
.site-container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:78px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);margin-right:auto}
.logo{width:46px;height:46px;border-radius:12px;background:#0f766e;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:24px;letter-spacing:-.06em}
.brand-text strong{display:block;font-size:18px;line-height:1.1;font-weight:700}
.brand-text em{display:block;margin-top:4px;font-style:normal;font-size:12px;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:10px;white-space:nowrap}
.main-nav a{text-decoration:none;color:#1f2937;font-size:15px;font-weight:600;padding:8px 10px;border-radius:8px}
.main-nav a:hover,.main-nav a.active{background:#f8fafc}
.main-nav a[href*="login"]{border:1px solid var(--line)}
.site-main{min-height:calc(100vh - 140px)}
.site-footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px;background:#fff}
.footer-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.page-card{background:var(--paper);padding:24px 0;margin:0 auto;width:min(1120px,calc(100% - 32px))}
.entry-content{font-size:16px;line-height:1.85;color:#334155}
.entry-content h2,.entry-content h3{color:#111827;line-height:1.35}
.note-single h1{font-size:36px;line-height:1.2;letter-spacing:0;margin:10px 0 20px}
.note-meta{display:inline-block;border:1px solid var(--line);background:#f8fafc;color:var(--muted);font-size:13px;padding:6px 10px;border-radius:999px;margin-bottom:12px}
.archive-item + .archive-item{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}
.archive-item h2 a{color:#111827;text-decoration:none}
@media(max-width:760px){
  .site-container,.page-card{width:calc(100% - 24px)}
  .header-inner{display:block;padding:12px 0}
  .brand{margin-bottom:12px}
  .main-nav{overflow-x:auto;padding-bottom:2px}
  .main-nav a{flex:0 0 auto;font-size:14px}
  .footer-inner{display:block}
  .footer-inner span{display:block;margin:4px 0}
  .note-single h1{font-size:30px}
}