:root{--primary: #8B5E3C;--primary-light: #A0785C;--primary-dark: #6B4226;--bg: #F5F0EB;--bg-card: #FFFFFF;--text: #3D2B1F;--text-secondary: #8B7355;--text-light: #B8A090;--border: #EDE4DC;--shadow: rgba(139, 94, 60, .08);--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6;min-height:100vh}#app{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;font-family:inherit}input,textarea{font-family:inherit;outline:none}.card{background:var(--bg-card);border-radius:var(--radius);padding:16px;margin:0 16px 12px;box-shadow:0 1px 8px var(--shadow)}.btn-primary{display:flex;align-items:center;justify-content:center;width:100%;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:16px;font-weight:600;border-radius:24px;border:none;transition:opacity .2s}.btn-primary:active{opacity:.85}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;color:var(--text-light)}.empty-state .icon{font-size:64px;margin-bottom:12px}.empty-state .text{font-size:15px;color:var(--text-secondary)}.empty-state .sub{font-size:13px;color:var(--text-light);margin-top:4px}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:40px}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000bf;color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;z-index:9999;pointer-events:none;animation:fadeInOut 2s ease}@keyframes fadeInOut{0%{opacity:0}10%{opacity:1}80%{opacity:1}to{opacity:0}}.page-wrap{min-height:100vh;padding-bottom:70px}.top-bar{position:sticky;top:0;z-index:100;background:var(--primary);color:#fff;padding:16px}.page-title{font-size:18px;font-weight:600}.bottom-tab{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;display:flex;align-items:center;justify-content:space-around;height:60px;background:var(--bg-card);border-top:1px solid var(--border);z-index:100}.tab-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 12px;color:var(--text-light);font-size:11px;transition:color .2s}.tab-item.active{color:var(--primary)}.tab-item .tab-icon{font-size:22px}.tab-item.write-btn{width:48px;height:48px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:50%;color:#fff;margin-top:-20px;box-shadow:0 2px 12px #8b5e3c4d}.tab-item.write-btn .tab-icon{font-size:24px}.modal-mask{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:200;display:none}.modal-mask.show{display:block}.modal{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;background:var(--bg-card);border-radius:16px 16px 0 0;padding:20px;z-index:201;display:none;max-height:80vh;overflow-y:auto}.modal.show{display:block}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.modal-title{font-size:17px;font-weight:600}.modal-close{font-size:20px;color:var(--text-light);cursor:pointer;padding:4px 8px}.modal-input{width:100%;height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:0 12px;font-size:15px;margin-bottom:12px;transition:border-color .2s}.modal-input:focus{border-color:var(--primary)}.diary-card{background:var(--bg-card);border-radius:var(--radius);margin:0 16px 12px;overflow:hidden;box-shadow:0 1px 8px var(--shadow);transition:transform .2s;cursor:pointer}.diary-card:active{transform:scale(.98)}.diary-card .card-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px 0}.diary-card .card-mood{font-size:24px}.diary-card .card-date{font-size:12px;color:var(--text-light)}.diary-card .card-title{padding:6px 14px 0;font-size:16px;font-weight:600}.diary-card .card-content{padding:6px 14px 10px;font-size:13px;color:var(--text-secondary);line-height:1.5;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}.diary-card .card-footer{display:flex;align-items:center;gap:16px;padding:8px 14px;border-top:1px solid var(--border);font-size:12px;color:var(--text-light)}.diary-card .card-images{display:flex;gap:6px;padding:0 14px 10px;overflow-x:auto}.diary-card .card-images img{width:80px;height:80px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}.section-title{font-size:13px;color:var(--text-light);padding:12px 16px 8px;font-weight:500;letter-spacing:.5px}