*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #1A73E8;--primary-dark: #1557B0;--success: #34A853;--warning: #FBBC04;--error: #EA4335;--text-primary: #202124;--text-secondary: #5F6368;--bg-page: #F8F9FA;--bg-card: #FFFFFF;--border: #DADCE0;--shadow: 0 2px 8px rgba(0,0,0,.08)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-page);color:var(--text-primary);line-height:1.5;min-height:100vh}#app{max-width:100%;min-height:100vh}.tab-nav{position:fixed;bottom:0;left:0;right:0;display:flex;background:var(--bg-card);border-top:1px solid var(--border);z-index:100}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;padding:8px 0;color:var(--text-secondary);text-decoration:none;font-size:12px;cursor:pointer;transition:color .2s}.tab-item.active{color:var(--primary)}.tab-item .icon{font-size:24px;margin-bottom:2px}.page{padding:16px 16px 70px}.card{background:var(--bg-card);border-radius:12px;padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;border:none;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:active{background:var(--primary-dark)}.btn-primary:disabled{background:#bdbdbd;cursor:not-allowed}.btn-full{width:100%}.input{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;font-size:16px;outline:none;transition:border-color .2s}.input:focus{border-color:var(--primary)}textarea.input{resize:vertical;min-height:100px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-primary)}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.feature-card{display:flex;flex-direction:column;align-items:center;padding:20px 12px;background:var(--bg-card);border-radius:12px;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s,box-shadow .2s}.feature-card:active{transform:scale(.98);box-shadow:0 1px 4px #0000001a}.feature-card .icon{font-size:36px;margin-bottom:8px}.feature-card .name{font-size:14px;font-weight:500;color:var(--text-primary)}.toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#000c;color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;z-index:9999;animation:toast-in .3s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.loading-mask{position:fixed;top:0;left:0;right:0;bottom:0;background:#ffffffe6;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:999}.loading-spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{margin-top:12px;color:var(--text-secondary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-box{background:var(--bg-card);border-radius:12px;padding:24px;width:80%;max-width:320px}.modal-title{font-size:18px;font-weight:600;margin-bottom:12px;text-align:center}.modal-content{font-size:14px;color:var(--text-secondary);margin-bottom:20px;text-align:center}.modal-btns{display:flex;gap:12px}.modal-btns .btn{flex:1}.history-list{display:flex;flex-direction:column;gap:12px}.history-item{display:flex;background:var(--bg-card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.history-thumb{width:80px;height:80px;object-fit:cover;background:var(--bg-page)}.history-info{flex:1;padding:12px;display:flex;flex-direction:column;justify-content:space-between}.history-title{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-meta{font-size:12px;color:var(--text-secondary)}.settings-list{background:var(--bg-card);border-radius:12px;overflow:hidden}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border);cursor:pointer}.settings-item:last-child{border-bottom:none}.settings-label{font-size:14px}.settings-value{font-size:14px;color:var(--text-secondary)}.page-header{padding:16px;background:var(--primary);color:#fff}.page-header h1{font-size:20px;font-weight:600}.type-selector{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto;padding-bottom:4px}.type-tag{padding:8px 16px;border-radius:20px;font-size:14px;white-space:nowrap;cursor:pointer;background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);transition:all .2s}.type-tag.active{background:var(--primary);color:#fff;border-color:var(--primary)}.audio-player{width:100%;border-radius:8px;outline:none}.preview-image{width:100%;border-radius:12px;margin-top:12px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-secondary)}.empty-state .icon{font-size:48px;margin-bottom:16px}.empty-state p{font-size:14px}