:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;--ink: #17212b;--muted: #64748b;--line: #d8e0e8;--bg: #f4f7f9;--panel: #ffffff;--brand: #1f5d7a;--brand-strong: #16455d;--teal: #0f766e;--amber: #b7791f;--violet: #6d5bd0;--danger: #b42318;--shadow: 0 8px 28px rgba(25, 42, 62, .08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select,textarea{font:inherit}button{border:0}input:disabled,select:disabled,textarea:disabled{background:#f3f6f8;color:var(--muted)}.app-shell{min-height:100vh;padding:max(env(safe-area-inset-top),14px) 14px calc(74px + env(safe-area-inset-bottom));background:linear-gradient(180deg,#e8f0f4 0,#f4f7f9 240px)}.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;max-width:760px;margin:0 auto 16px}.top-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:8px}.role-select{width:112px;height:36px;border:1px solid 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