* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Vue.js v-cloak 指令 - 隐藏未编译的模板，防止闪烁 */
[v-cloak] {
    display: none !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background-color: #409eff;
    color: white;
}

.btn-primary:hover {
    background-color: #66b1ff;
}

.btn-success {
    background-color: #67c23a;
    color: white;
}

.btn-success:hover {
    background-color: #85ce61;
}

.btn-danger {
    background-color: #f56c6c;
    color: white;
}

.btn-danger:hover {
    background-color: #f78989;
}

.btn-warning {
    background-color: #e6a23c;
    color: white;
}

.btn-warning:hover {
    background-color: #ebb563;
}

.btn-secondary {
    background-color: #909399;
    color: white;
}

.btn-secondary:hover {
    background-color: #a6a9ad;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 16px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #dcdfe6;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #409eff;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* 卡片样式 */
.card {
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ebeef5;
}

/* 提示信息样式 */
.alert {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    padding: 12px 20px;
    border-radius: 4px;
    margin-bottom: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 300px;
    max-width: 500px;
    text-align: center;
}

.alert-success {
    background-color: #f0f9ff;
    color: #67c23a;
    border: 1px solid #c2e7b0;
}

.alert-error {
    background-color: #fef0f0;
    color: #f56c6c;
    border: 1px solid #fbc4c4;
}

.alert-warning {
    background-color: #fdf6ec;
    color: #e6a23c;
    border: 1px solid #f5dab1;
}

.alert-info {
    background-color: #f4f4f5;
    color: #909399;
    border: 1px solid #d3d4d6;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ebeef5;
}

.table th {
    background-color: #f5f7fa;
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: #f5f7fa;
}

/* 徽章样式 */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background-color: #409eff;
    color: white;
}

.badge-success {
    background-color: #67c23a;
    color: white;
}

.badge-danger {
    background-color: #f56c6c;
    color: white;
}

.badge-warning {
    background-color: #e6a23c;
    color: white;
}

.badge-info {
    background-color: #909399;
    color: white;
}

/* 优先级标签 */
.priority-high {
    color: #f56c6c;
}

.priority-medium {
    color: #e6a23c;
}

.priority-low {
    color: #67c23a;
}

/* 工具类 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-10 {
    margin-top: 10px;
}

.mt-20 {
    margin-top: 20px;
}

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(64, 158, 255, 0.2);
    border-radius: 50%;
    border-top-color: #409eff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 20px;
    border-radius: 4px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
}

.close {
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover,
.close:focus {
    color: #000;
}

.modal-footer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ebeef5;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* 下拉选择框 */
select.form-control {
    cursor: pointer;
}

/* 复选框 */
input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* 文件上传 */
.file-upload {
    border: 2px dashed #dcdfe6;
    border-radius: 4px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s;
}

.file-upload:hover {
    border-color: #409eff;
}

.file-upload.dragover {
    border-color: #409eff;
    background-color: #f5f7fa;
}

/* 附件列表 */
.attachment-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border: 1px solid #ebeef5;
    border-radius: 4px;
    margin-bottom: 10px;
}

.attachment-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attachment-actions {
    display: flex;
    gap: 10px;
}

/* 标签相关样式 */
.tag-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-right: 6px;
    margin-bottom: 4px;
}

.todo-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-left: 10px;
}

/* 标签选择器 */
.tag-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px;
    border: 1px solid #dcdfe6;
    border-radius: 4px;
    background-color: #fafafa;
    min-height: 50px;
}

.tag-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin: 0;
    padding: 0;
}

.tag-checkbox input[type="checkbox"] {
    margin: 0;
    cursor: pointer;
}

.tag-checkbox input[type="checkbox"]:checked + .tag-badge {
    box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.3);
}

/* 标签列表 */
.tag-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.tag-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border: 1px solid #ebeef5;
    border-radius: 8px;
    background-color: #fff;
    transition: all 0.3s;
}

.tag-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.tag-actions {
    display: flex;
    gap: 8px;
}

.create-tag-form {
    padding: 15px;
    background-color: #f5f7fa;
    border-radius: 8px;
    margin-bottom: 20px;
}