*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{--primary:#4A90D9;--success:#52C41A;--warning:#FAAD14;--bg:#F5F7FA;--card:#fff;--text:#333;--light:#999;--tabbar-h:60px;--topbar-h:50px}
html,body{height:100%;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);overflow:hidden}
#topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;z-index:100}
#topbar h1{font-size:18px;font-weight:600}
#app{padding-top:var(--topbar-h);padding-bottom:var(--tabbar-h);height:100vh;overflow-y:auto}
.tab-page{display:none;padding:16px}.tab-page.active{display:block}
#tabbar{position:fixed;bottom:0;left:0;right:0;height:var(--tabbar-h);background:var(--card);border-top:1px solid #eee;display:flex;z-index:100}
.tab-btn{flex:1;border:none;background:none;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--light);cursor:pointer;gap:2px}
.tab-btn .tab-icon{font-size:22px}
.tab-btn.active{color:var(--primary);font-weight:600}
.home-date{text-align:center;font-size:16px;color:var(--light);margin-bottom:20px}
.home-stats{display:flex;justify-content:space-around;background:var(--card);border-radius:12px;padding:16px 0;margin-bottom:16px}
.stat-item{text-align:center}
.stat-num{font-size:28px;font-weight:700;color:var(--primary)}
.stat-label{font-size:12px;color:var(--light);margin-top:4px}
.progress-bar{height:12px;background:#e8e8e8;border-radius:6px;overflow:hidden;margin-bottom:30px}
.progress-fill{height:100%;background:linear-gradient(90deg,#52C41A,#95DE64);border-radius:6px;width:0;transition:width .4s}
.home-big-btn-area{display:flex;justify-content:center;margin-bottom:30px}
.big-start-btn{width:80%;padding:24px;background:linear-gradient(135deg,#4A90D9,#357ABD);color:#fff;border:none;border-radius:20px;font-size:24px;font-weight:700;display:flex;flex-direction:column;align-items:center;gap:8px;box-shadow:0 8px 20px rgba(74,144,217,.4);animation:pulse 2s infinite;cursor:pointer}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
.big-start-btn .btn-emoji{font-size:40px}
.home-history h3{font-size:14px;color:var(--light);margin-bottom:10px}
.history-item{background:var(--card);border-radius:10px;padding:12px 16px;margin-bottom:8px;display:flex;justify-content:space-between;font-size:14px}
.upload-form,.settings-form{background:var(--card);border-radius:12px;padding:20px}
.form-label{display:block;font-size:14px;margin:16px 0 8px;font-weight:600}
.form-label:first-child{margin-top:0}
.form-input{width:100%;padding:12px;border:1px solid #ddd;border-radius:8px;font-size:16px;background:#fafafa}
.subject-chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 16px;border-radius:20px;border:1px solid #ddd;background:#fff;font-size:14px;cursor:pointer}
.chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.upload-area{margin-top:12px}
.upload-btn{width:100%;padding:16px;border:2px dashed #ccc;border-radius:10px;background:#fafafa;font-size:16px;cursor:pointer;color:var(--text)}
.preview-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.preview-list img{width:80px;height:80px;object-fit:cover;border-radius:8px;border:1px solid #eee}
.action-btn{width:100%;padding:14px;border:none;border-radius:10px;font-size:16px;font-weight:600;margin-top:16px;cursor:pointer}
.action-btn.primary{background:var(--primary);color:#fff}
.action-btn.success{background:var(--success);color:#fff}
.action-btn:disabled{background:#ccc}
.edit-list{margin-top:20px;background:var(--card);border-radius:12px;padding:16px}
.edit-list h3{font-size:16px;margin-bottom:12px}
.edit-item{border:1px solid #eee;border-radius:8px;padding:12px;margin-bottom:10px}
.edit-item .ei-subject{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;color:#fff;margin-bottom:6px}
.edit-item textarea{width:100%;min-height:50px;border:1px solid #ddd;border-radius:6px;padding:8px;font-size:14px;margin-top:6px}
.edit-item img.ei-img{max-width:100%;border-radius:6px;margin-top:6px;max-height:150px}
.settings-tip{margin-top:16px;text-align:center;color:var(--success);font-size:14px;min-height:20px}
.overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg);z-index:200;padding:20px;overflow-y:auto}
.overlay.active{display:block}
.doing-card{max-width:600px;margin:0 auto;background:var(--card);border-radius:16px;padding:24px;min-height:90vh;display:flex;flex-direction:column}
.doing-subject{display:inline-block;padding:4px 12px;border-radius:6px;font-size:14px;color:#fff;margin-bottom:16px;align-self:flex-start}
.doing-title{font-size:20px;line-height:1.6;margin-bottom:16px;font-weight:600}
.doing-image-area{flex:1;display:flex;align-items:center;justify-content:center;background:#fafafa;border-radius:10px;margin-bottom:20px;min-height:200px;overflow:hidden}
.doing-image-area img{max-width:100%;max-height:100%}
.doing-controls{display:flex;gap:12px;align-items:center}
.round-btn{width:60px;height:60px;border-radius:50%;border:2px solid var(--primary);background:#fff;font-size:24px;cursor:pointer;flex-shrink:0}
.big-done-btn{flex:1;padding:18px;background:var(--success);color:#fff;border:none;border-radius:14px;font-size:20px;font-weight:700;cursor:pointer}
.doing-progress{text-align:center;margin-top:16px;color:var(--light);font-size:14px}
#celebrate-overlay{background:rgba(0,0,0,.8);display:none;align-items:center;justify-content:center}
#celebrate-overlay.active{display:flex}
.trophy{font-size:100px;animation:bounce .6s}
.celebrate-text{font-size:32px;color:#FFD700;font-weight:700;margin-top:20px}
@keyframes bounce{0%{transform:scale(0)}50%{transform:scale(1.2)}100%{transform:scale(1)}}
@media(min-width:768px){.tab-page{max-width:600px;margin:0 auto}.doing-card{max-width:700px}}