:root{--primary: #0064FF;--primary-hover: #0053D1;--primary-light: #E6F0FF;--primary-bg: #F5F8FF;--success: #00A854;--warning: #FAAD14;--danger: #F5222D;--text: #1A1A2E;--text-secondary: #5A6070;--text-tertiary: #8C93A3;--border: #E4E8EE;--bg: #F5F7FA;--bg-card: #FFFFFF;--bg-nav: #FFFFFF;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-hover: 0 4px 12px rgba(0,0,0,.08);--sidebar-width: 220px;--sidebar-collapsed-width: 60px;--nav-height: 56px;--radius: 8px;--radius-sm: 6px;--transition: .2s cubic-bezier(.4,0,.2,1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}.btn-primary{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition)}.btn-primary:hover{background:var(--primary-hover);box-shadow:0 2px 8px #0064ff40}.btn-outline{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:var(--transition)}.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-bg)}.btn-danger{background:none;border:none;color:var(--danger);cursor:pointer;font-size:13px;padding:4px 8px}.btn-danger:hover{text-decoration:underline}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text);margin-bottom:6px}.form-group input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;color:var(--text);outline:none;background:#fafbfc;transition:border .2s,box-shadow .2s}.form-group input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #0064ff1a;background:#fff}.form-group input::placeholder{color:#b0b8c8}.alert{padding:12px 16px;border-radius:var(--radius);font-size:14px;margin-bottom:16px}.alert-success{background:#f0fff4;border:1px solid #B7EB8F;color:#135200}.alert-error{background:#fff2f0;border:1px solid #FFCCC7;color:#820014}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.page-header{margin-bottom:24px}.page-header h2{font-size:22px;font-weight:600;letter-spacing:-.3px}.page-header p{font-size:14px;color:var(--text-secondary);margin-top:4px}@media (max-width: 768px){.hide-mobile{display:none!important}}