:root{--bg: #f5f7fb;--panel: #ffffff;--ink: #1d2733;--muted: #697587;--line: #dfe5ee;--accent: #0f9f8f;--accent-strong: #08766b;--danger: #c43d4b;--warning: #b7791f;--shadow: 0 18px 42px rgba(29, 39, 51, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:var(--bg);font-family:Inter,Segoe UI,Microsoft YaHei,Arial,sans-serif;letter-spacing:0}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}.app-shell{width:min(1180px,100%);margin:0 auto;padding:20px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.app-header h1,.panel-title h2{margin:0}.app-header h1{font-size:28px}.eyebrow{margin:0 0 5px;color:var(--accent-strong);font-size:12px;font-weight:800;text-transform:uppercase}.tabs{display:inline-flex;padding:4px;background:#e9eef5;border-radius:8px}.tabs 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