:root{--primary-color: #7c4f2e;--primary-hover: #6a4226;--secondary-color: #f5e6d8;--text-color: #333;--text-muted: #999;--border-color: #e5e5e5;--bg-color: #fafafa;--white: #ffffff;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text-color);background:var(--bg-color);line-height:1.6}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto;display:block}button{cursor:pointer;border:none;outline:none;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:6px;font-size:14px;font-weight:500;transition:all .2s;cursor:pointer}.btn-primary{background:var(--primary-color);color:var(--white)}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--secondary-color);color:var(--primary-color)}.btn-secondary:hover{background:#e8d5c4}.btn-outline{background:transparent;border:1px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:var(--white)}.card{background:var(--white);border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #0000000f;transition:all .3s}.card:hover{box-shadow:0 8px 24px #0000001f;transform:translateY(-4px)}.grid{display:grid;gap:24px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.loading{display:flex;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-muted)}.spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:80px 20px;color:var(--text-muted)}.empty-state .icon{font-size:64px;margin-bottom:16px;display:block}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-color)}.form-input{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:6px;font-size:14px;transition:all .2s}.form-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #7c4f2e1a}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500}.badge-primary{background:#7c4f2e1a;color:var(--primary-color)}.badge-success{background:#22c55e1a;color:var(--success)}.badge-muted{background:#9999991a;color:var(--text-muted)}