:root{
  --bg:#ffffff;--text:#1c1c1c;--muted:#5b5b5b;
  --primary:#2fa58a;--primary2:#4bb5ff;
  --card:#f7fdfc;--border:#e7eceb;
  --navbg:#ffffff;--link:#0b5bd3;
  --shadow:0 10px 26px rgba(0,0,0,.08);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1412;--text:#f2f2f2;--muted:#c7c7c7;
    --card:#12201c;--border:#24312d;--navbg:#111815;--link:#79b8ff;
    --shadow:0 10px 26px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
header{position:sticky;top:0;z-index:99;background:var(--navbg);border-bottom:1px solid var(--border);padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;letter-spacing:.2px}
nav{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
nav a{color:var(--text);opacity:.85;padding:6px 10px;border-radius:10px}
nav a.active{opacity:1;color:var(--primary);background:rgba(47,165,138,.10)}
.container{max-width:980px;margin:0 auto;padding:0 22px}
.hero{padding:58px 0 34px}
.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;align-items:center}
@media (max-width:860px){.hero-inner{grid-template-columns:1fr}}
h1{font-size:44px;line-height:1.15;margin:0 0 10px}
.lead{font-size:18px;color:var(--muted);margin:0;max-width:820px}
.cta{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;border:0;border-radius:12px;padding:12px 18px;font-weight:600;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-primary:hover{filter:brightness(.95);text-decoration:none}
.btn-ghost:hover{background:rgba(47,165,138,.08);text-decoration:none}
.section{padding:34px 0}
.grid{display:grid;gap:16px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:860px){.grid-3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.card h2{margin:0 0 10px;font-size:22px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted)}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:860px){.kv{grid-template-columns:1fr}}
.hr{height:1px;background:var(--border);margin:16px 0}
.small{font-size:13px;color:var(--muted)}
footer{border-top:1px solid var(--border);padding:18px 0;margin-top:10px}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}
.footer-links a{color:var(--muted)}
.footer-bottom{display:flex;gap:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;margin-top:10px}
.icp a{color:var(--muted)}
.fade{opacity:0;transform:translateY(12px)}
.fade.visible{opacity:1;transform:none;transition:opacity .6s ease, transform .6s ease}

/* -------- tables (log template) -------- */
.table-wrap{overflow:auto;border-radius:16px;border:1px solid var(--border);background:var(--card)}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}
th{font-size:13px;text-transform:none;color:var(--muted);background:rgba(47,165,138,.06);position:sticky;top:0}
td{font-size:14px}
tr:last-child td{border-bottom:none}
.field{font-weight:600;color:var(--text)}
.hint{color:var(--muted);font-size:12px}
kbd{background:rgba(0,0,0,.06);border:1px solid var(--border);border-bottom-width:2px;border-radius:8px;padding:2px 6px;font-size:12px}
@media (prefers-color-scheme: dark){
  kbd{background:rgba(255,255,255,.06)}
}

/* Footer 基础 */
.site-footer{
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid var(--border, rgba(0,0,0,0.08));
  background: var(--footer-bg, transparent);
}

.site-footer .container{
  max-width: var(--container, 1080px);
  margin: 0 auto;
  padding: 0 16px;
}

.footer-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px 18px;
  flex-wrap: wrap;
}

/* 链接区 */
.footer-links{
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.footer-links a{
  font-size: 13px;
  color: var(--muted-fg, rgba(0,0,0,0.60));
  text-decoration: none;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.footer-links a:hover{
  color: var(--fg, rgba(0,0,0,0.88));
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 右侧 meta（版权 + 备案） */
.footer-meta{
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.small{
  font-size: 12px;
  line-height: 1.2;
  color: var(--muted-fg, rgba(0,0,0,0.60));
}

/* ICP 胶囊（更美观） */
.icp{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface-2, rgba(0,0,0,0.04));
  border: 1px solid var(--border, rgba(0,0,0,0.08));
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.icp demonstrate {
  /* placeholder to prevent accidental CSS merging; safe to delete */
}

.icp__icon{
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  transform: translateY(-0.5px);
  opacity: 0.92;
}

.icp__text{
  color: var(--muted-fg, rgba(0,0,0,0.62));
  white-space: nowrap;
  transition: color 160ms ease;
}

.icp:hover{
  background: var(--surface-3, rgba(0,0,0,0.06));
  border-color: var(--border-strong, rgba(0,0,0,0.12));
}

.icp:hover .icp__text{
  color: var(--fg, rgba(0,0,0,0.88));
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 小屏：左右堆叠更自然 */
@media (max-width: 640px){
  .footer-inner{
    align-items: flex-start;
  }
  .footer-meta{
    justify-content: flex-start;
  }
}

/* 深色模式 */
@media (prefers-color-scheme: dark){
  .site-footer{
    border-top-color: var(--border, rgba(255,255,255,0.10));
  }
  .footer-links a,
  .small,
  .icp__text{
    color: var(--muted-fg, rgba(255,255,255,0.70));
  }
  .footer-links a:hover{
    color: var(--fg, rgba(255,255,255,0.92));
  }
  .icp{
    background: var(--surface-2, rgba(255,255,255,0.06));
    border-color: var(--border, rgba(255,255,255,0.10));
  }
  .icp:hover{
    background: var(--surface-3, rgba(255,255,255,0.08));
    border-color: var(--border-strong, rgba(255,255,255,0.16));
  }
  .icp:hover .icp__text{
    color: var(--fg, rgba(255,255,255,0.92));
  }
}