/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:#0a0a0f;color:#e7e7ea;line-height:1.6;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
img{display:block;max-width:100%}
input,textarea{font:inherit;color:inherit}
:root{
  --bg:#0a0a0f;--bg2:#111118;--card:#16161f;--card2:#1c1c28;
  --line:rgba(255,255,255,.08);--line2:rgba(255,255,255,.14);
  --text:#e7e7ea;--muted:#9a9aa6;
  --brand:#7c5cff;--brand2:#a78bff;--accent:#22d3ee;
  --grad:linear-gradient(135deg,#7c5cff 0%,#a78bff 60%,#22d3ee 100%);
  --shadow:0 10px 40px rgba(0,0,0,.35);
  /* 主题敏感令牌（浅色覆盖见 effects.css light 块）：玻璃面板/输入底/媒体渐变/地图滤镜等 */
  --glass-panel:rgba(20,20,28,.75);
  --glass-strong:rgba(20,20,28,.88);
  --glass-menu:rgba(20,20,28,.98);
  --field:rgba(255,255,255,.05);
  --field-hover:rgba(255,255,255,.1);
  --input-bar:rgba(0,0,0,.2);
  --alt-bg:rgba(255,255,255,.015);
  --media-bg:linear-gradient(160deg,#1a1a26,#0f0f18);
  --overlay-grad:linear-gradient(135deg,#2a1f4a 0%,#16233a 55%,#0c1f1f 100%);
  --vignette:rgba(0,0,0,.6);
  --map-fallback:radial-gradient(circle at 30% 30%,rgba(124,92,255,.12),transparent 55%),radial-gradient(circle at 70% 60%,rgba(56,189,248,.09),transparent 52%),linear-gradient(135deg,#14141d,#1c1c2b);
  --grid-line:rgba(255,255,255,.05);
  --map-filter:invert(.92) hue-rotate(180deg) saturate(.65) brightness(.85);
  --slide-c1:#2a1f4a;--slide-c2:#163a3a;
  --footer-bg:#07070c;
  --scroll-thumb:#2a2a36;
  --chip-bg:rgba(0,0,0,.55);--chip-fg:#fff;
  --thumb-shade:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.5));
  --code-green:#9fd8b8;
  --r:14px;--r2:20px;
}
::selection{background:var(--brand);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:#3a3a48}