:root{--bg: #F5F5F7;--card-bg: #FFFFFF;--text-primary: #1D1D1F;--text-secondary: #86868B;--text-tertiary: #AEAEB2;--accent: #FF6B6B;--accent-light: #FFF0F0;--border: #E8E8ED;--shadow: rgba(0, 0, 0, .04);--shadow-md: rgba(0, 0, 0, .08);--radius-sm: 8px;--radius: 12px;--radius-lg: 20px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{font-family:var(--font);font-size:16px;line-height:1.5;color:var(--text-primary);background:var(--bg);min-height:100vh;min-height:100dvh;overflow-x:hidden;-webkit-font-smoothing:antialiased}#app{max-width:600px;margin:0 auto;min-height:100vh}#header{position:sticky;top:0;z-index:100;background:#f5f5f7d9;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);padding:12px 16px;border-bottom:.5px solid var(--border);display:flex;align-items:center;gap:12px}#header-title{font-size:18px;font-weight:600;letter-spacing:-.3px;flex:1}.btn-add{width:36px;height:36px;border-radius:50%;border:none;background:var(--accent);color:#fff;font-size:24px;font-weight:300;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #ff6b6b59;transition:transform .15s;line-height:1}.btn-add:active{transform:scale(.92)}.btn-settings{width:32px;height:32px;border-radius:50%;border:none;background:none;color:var(--text-secondary);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color .15s}.btn-settings:active{color:var(--text-primary)}#loading{display:flex;align-items:center;justify-content:center;min-height:60vh;color:var(--text-secondary);font-size:15px}#loading.hidden{display:none}#timeline-container{padding:0 16px 80px}.search-bar{position:relative;margin:12px 0}.search-bar input{width:100%;padding:10px 16px 10px 40px;border:none;border-radius:var(--radius);background:var(--card-bg);font-size:15px;font-family:var(--font);color:var(--text-primary);box-shadow:0 1px 3px var(--shadow);outline:none;transition:box-shadow .2s}.search-bar input::placeholder{color:var(--text-tertiary)}.search-bar input:focus{box-shadow:0 1px 3px var(--shadow-md)}.search-bar-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-tertiary);pointer-events:none}.filter-bar{display:flex;gap:8px;padding:0 0 8px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.filter-bar::-webkit-scrollbar{display:none}.filter-chip{border:none;padding:6px 14px;border-radius:20px;font-size:13px;font-family:var(--font);font-weight:500;cursor:pointer;white-space:nowrap;background:var(--card-bg);color:var(--text-secondary);box-shadow:0 1px 2px var(--shadow);transition:all .15s}.filter-chip.active{background:var(--accent);color:#fff;box-shadow:0 2px 8px #ff6b6b4d}.date-group-header{padding:16px 4px 8px;font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;position:sticky;top:56px;background:var(--bg);z-index:10}.timeline-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 40px;text-align:center}.timeline-empty-icon{font-size:48px;margin-bottom:16px;opacity:.6}.timeline-empty h2{font-size:18px;font-weight:600;margin-bottom:8px}.timeline-empty p{font-size:14px;color:var(--text-secondary);line-height:1.6}.record-card{background:var(--card-bg);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:0 1px 3px var(--shadow);transition:box-shadow .2s}.record-card:active{box-shadow:0 1px 6px var(--shadow-md)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.card-author{display:flex;align-items:center;gap:8px}.author-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.author-name{font-size:14px;font-weight:500;color:var(--text-primary)}.card-time{font-size:12px;color:var(--text-tertiary)}.card-content{font-size:15px;line-height:1.65;color:var(--text-primary);white-space:pre-wrap;word-break:break-word;margin-bottom:10px}.card-mood{display:inline-block;font-size:13px;padding:2px 10px;border-radius:20px;background:#fff8e1;color:#f5a623;margin-bottom:10px}.card-photos{display:grid;gap:4px;margin-bottom:10px;border-radius:var(--radius-sm);overflow:hidden}.card-photos.cols-1{grid-template-columns:1fr}.card-photos.cols-2{grid-template-columns:1fr 1fr}.card-photos.cols-3{grid-template-columns:1fr 1fr 1fr}.card-photo{width:100%;aspect-ratio:1;object-fit:cover;cursor:pointer;transition:opacity .15s;background:var(--bg)}.card-photo:active{opacity:.7}.card-photo-video{position:relative}.card-photo-video:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:36px;height:36px;background:#00000080;border-radius:50%;pointer-events:none}.card-footer{display:flex;align-items:center;gap:16px}.card-tag{font-size:12px;color:var(--text-secondary);background:var(--bg);padding:2px 8px;border-radius:4px}.card-star{border:none;background:none;cursor:pointer;padding:4px;color:var(--text-tertiary);font-size:18px;transition:color .15s;line-height:1}.card-star.starred{color:gold}.card-actions{margin-left:auto;border:none;background:none;cursor:pointer;padding:4px;color:var(--text-tertiary);font-size:16px;line-height:1}#editor-container{display:none}.editor-page{padding:16px;max-width:600px;margin:0 auto;animation:fadeIn .2s ease-out}.editor-header{display:flex;align-items:center;justify-content:space-between;padding:12px 0;margin-bottom:8px}.editor-close{width:36px;height:36px;border:none;background:none;font-size:22px;color:var(--text-primary);cursor:pointer;border-radius:50%;display:flex;align-items:center;justify-content:center}.editor-close:active{background:var(--bg)}.editor-save{padding:8px 20px;border:none;border-radius:var(--radius);background:var(--accent);color:#fff;font-size:15px;font-weight:600;font-family:var(--font);cursor:pointer;transition:opacity .15s}.editor-save:active{opacity:.85}.editor-save:disabled{opacity:.4;cursor:default}.author-selector{display:flex;align-items:center;gap:8px;padding:12px 0;font-size:14px;color:var(--text-secondary)}.editor-textarea{width:100%;min-height:120px;padding:14px 0;border:none;font-size:16px;font-family:var(--font);line-height:1.65;color:var(--text-primary);background:none;outline:none;resize:none}.editor-textarea::placeholder{color:var(--text-tertiary)}.mood-selector{display:flex;gap:6px;padding:12px 0;overflow-x:auto;-webkit-overflow-scrolling:touch}.mood-btn{border:1.5px solid var(--border);background:var(--card-bg);padding:6px 14px;border-radius:20px;font-size:14px;cursor:pointer;white-space:nowrap;font-family:var(--font);transition:all .15s}.mood-btn.active{border-color:var(--accent);background:var(--accent-light)}.mood-btn:active{transform:scale(.95)}.tag-input-area{display:flex;flex-wrap:wrap;gap:6px;padding:10px 0;align-items:center}.tag-pill{display:flex;align-items:center;gap:4px;padding:4px 10px;background:var(--bg);border-radius:14px;font-size:13px;color:var(--text-secondary)}.tag-pill button{border:none;background:none;cursor:pointer;color:var(--text-tertiary);font-size:14px;padding:0 2px;line-height:1}.tag-input{border:none;background:none;font-size:14px;font-family:var(--font);color:var(--text-primary);outline:none;min-width:80px;flex:1}.tag-input::placeholder{color:var(--text-tertiary)}.attachment-actions{display:flex;gap:10px;padding:12px 0}.attach-btn{display:flex;align-items:center;gap:6px;padding:10px 16px;border:1.5px dashed var(--border);border-radius:var(--radius);background:var(--card-bg);cursor:pointer;font-family:var(--font);font-size:14px;color:var(--text-secondary);transition:all .15s}.attach-btn:active{border-color:var(--accent);color:var(--accent)}.attach-btn svg{color:var(--accent)}.attachment-preview{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:8px 0}.preview-item{position:relative;aspect-ratio:1;border-radius:var(--radius-sm);overflow:hidden}.preview-item img{width:100%;height:100%;object-fit:cover}.preview-remove{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;border:none;background:#00000080;color:#fff;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1}.preview-video-badge{position:absolute;bottom:6px;right:6px;width:24px;height:24px;background:#00000080;border-radius:50%}.preview-video-badge:after{content:"";width:0;height:0;border-style:solid;border-width:5px 0 5px 9px;border-color:transparent transparent transparent #fff;margin-left:2px}.char-count{font-size:12px;color:var(--text-tertiary);text-align:right;padding:4px 0}.viewer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000eb;z-index:1000;display:none;align-items:center;justify-content:center}.viewer-overlay.active{display:flex}.viewer-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;border:none;background:#ffffff26;color:#fff;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1001}.viewer-img{max-width:95vw;max-height:90vh;object-fit:contain;border-radius:4px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:500;display:flex;align-items:center;justify-content:center;padding:24px;animation:fadeIn .15s ease-out}.modal{background:var(--card-bg);border-radius:var(--radius-lg);padding:24px;width:100%;max-width:300px;text-align:center;box-shadow:0 8px 30px #0000001f}.modal h3{font-size:17px;font-weight:600;margin-bottom:8px}.modal p{font-size:14px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.modal-actions{display:flex;gap:10px}.modal-actions button{flex:1;padding:10px;border:none;border-radius:var(--radius);font-size:15px;font-weight:500;font-family:var(--font);cursor:pointer}.modal-cancel{background:var(--bg);color:var(--text-primary)}.modal-confirm{background:#ff3b30;color:#fff}.toast{position:fixed;top:68px;left:50%;transform:translate(-50%);background:var(--text-primary);color:#fff;padding:10px 20px;border-radius:var(--radius);font-size:14px;z-index:600;animation:toastIn .2s ease-out;pointer-events:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}::-webkit-scrollbar{width:0;height:0}