:root{--primary:#ff9f43;--primary-light:#fff2e0;--text-main:#2c3e50;--text-sub:#7f8c8d;--bg:#f9f9f9;--card-bg:#fff;--radius:16px;--shadow:0 4px 12px #00000014;--font-size-base:16px;--font-size-lg:20px;--font-size-xl:24px}body.large-text{--font-size-base:20px;--font-size-lg:24px;--font-size-xl:32px}body{background-color:var(--bg);color:var(--text-main);font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:var(--font-size-base);margin:0;padding:0;line-height:1.5}button{font-family:inherit}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #f0f0f0;padding:16px}.btn{background:var(--primary);color:#fff;font-size:var(--font-size-base);cursor:pointer;border:none;border-radius:24px;justify-content:center;align-items:center;gap:8px;width:100%;padding:12px 24px;font-weight:700;transition:opacity .2s;display:flex}.btn:active{opacity:.8}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{color:var(--text-main);background:#f0f0f0}.btn.outline{border:1px solid var(--primary);color:var(--primary);background:0 0}.input-area{width:100%;font-size:var(--font-size-base);box-sizing:border-box;resize:vertical;border:2px solid #eee;border-radius:12px;padding:12px;font-family:inherit}.input-area:focus{border-color:var(--primary);outline:none}.tag{color:#666;background:#eee;border-radius:4px;align-items:center;gap:4px;padding:4px 8px;font-size:.8em;display:inline-flex}.tag.urgent-HIGH{color:#ff4d4f;background:#ffebeb}.tag.urgent-MEDIUM{color:#fa8c16;background:#fff7e6}.tag.urgent-LOW{color:#52c41a;background:#f6ffed}.app-container{background:#fff;flex-direction:column;max-width:480px;min-height:100vh;margin:0 auto;display:flex;position:relative;box-shadow:0 0 20px #0000000d}.page-content{flex:1;padding:16px 16px 80px;overflow-y:auto}@keyframes pulse{0%{opacity:.8;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}to{opacity:.8;transform:scale(1)}}