/* ===== 角色聊天 - 基础变量 & 重置 ===== */
:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --accent: #f59e0b;
    --bg: #0f1419;
    --bg2: #1a2332;
    --bg3: #243044;
    --bg-card: #1e2a3a;
    --text: #e8eaed;
    --text-dim: #9aa0a6;
    --border: #2d3a4a;
    --card-hover: rgba(139,92,246,0.12);
    --danger: #ef4444;
    --success: #22c55e;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}