:root{
  --brand:#2F6FFF; --brand-2:#7B61FF; --accent:#14D3C1;
  --bg:#F6F8FC; --surface:#FFFFFF; --surface-1:#F8FAFF; --surface-2:#F2F6FF; --ring:#E6EDF5; --text:#0B1020; --muted:#667085; --border:rgba(11,16,32,0.10);
  --radius:12px; --shadow-sm:0 3px 12px rgba(0,0,0,.06); --shadow:0 10px 30px rgba(16,24,40,.08);
}
[data-theme="dark"]{ --bg:#0A0F1C; --surface:#111827; --surface-1:#0E1626; --surface-2:#0B1322; --ring:#243044; --text:#E6EAF3; --muted:#9AA4B2; --border:rgba(230,234,243,0.14); }
[data-theme="hc"]{ --bg:#000000; --surface:#0A0A0A; --surface-1:#0F0F0F; --surface-2:#141414; --ring:#2A2A2A; --text:#FFFFFF; --muted:#C7C7C7; --border:#FFFFFF; }

*{box-sizing:border-box} html,body{margin:0} body{font-family:-apple-system,BlinkMacSystemFont,"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--brand)}
.container{max-width:1200px;margin:0 auto;padding:24px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px}
.h1{font-size:28px;font-weight:700;margin:0 0 8px}
.muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;border:1px solid var(--border);background:var(--surface-1)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;border:none;border-radius:10px;padding:10px 14px;font-weight:700;box-shadow:var(--shadow)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--border);box-shadow:none}
.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text)}
.swatch{border-radius:10px;border:1px solid var(--border);padding:12px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.swatch .box{width:100%;height:72px;border-radius:8px;border:1px solid var(--ring)}
.row{display:flex;flex-wrap:wrap;gap:12px}
.alert{border-radius:12px;padding:12px 14px;border:1px solid;display:flex;gap:8px;align-items:center}
.alert.success{background:#D1FADF; border-color:#6CE9A6; color:#118A5F}
.alert.warning{background:#FEF0C7; border-color:#FEDF89; color:#B54708}
.alert.danger{background:#FEE4E2; border-color:#FEA3A0; color:#B42318}
.alert.info{background:#D1E9FF; border-color:#84CAFF; color:#175CD3}
.hero{border-radius:24px;padding:48px;color:#fff;box-shadow:var(--shadow)}
.hero.cool{background:linear-gradient(120deg,#7B61FF,#2F6FFF 40%,#14D3C1)}
.hero.warm{background:linear-gradient(120deg,#FF7A59,#FFB36D 50%,#FFD36E)}
.hero.night{background:linear-gradient(135deg,#141E30,#243B55 55%,#4B6CB7)}
.table{width:100%;border-collapse:separate;border-spacing:0 8px} .table th{text-align:left;color:var(--muted);font-weight:500} .table td,.table th{background:var(--surface);padding:10px;border:1px solid var(--border)}
.tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;border:1px solid var(--border)}
.tag.brand{background:rgba(47,111,255,0.12);color:#1D3F99;border-color:rgba(47,111,255,0.35)}
.tag.accent{background:rgba(20,211,193,0.12);color:#0E6C63;border-color:rgba(20,211,193,0.35)}
.tag.neutral{background:var(--surface-1);color:var(--muted)}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:16px}
.theme-switch{display:flex;gap:8px;align-items:center} .theme-switch button{padding:6px 10px;border-radius:8px;border:1px solid var(--border);background:var(--surface-1);cursor:pointer} .theme-switch button.active{border-color:var(--brand)}
.footer{margin-top:24px;text-align:center;color:var(--muted)}