/* ========== course-query.css 最终定稿 ========== */

/* 定义全局CSS变量（补全缺失，保证样式统一） */
:root {
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    --hover-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    --border-color: #e0e0e0;
    --light-bg: #f8f9fa;
    --primary-color: #4299e1;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --danger-color: #e53e3e;
    --text-main: #2d3748;
    --text-secondary: #718096;
}

/* 基础样式 */
body {
    background-color: #f5f7fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 全局盒模型重置（避免布局错乱） */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 通用卡片样式 */
.card-container {
    border: none;
    box-shadow: var(--card-shadow);
    border-radius: 12px;
    background-color: #fff;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    overflow: hidden;
}

.card-container:hover {
    box-shadow: var(--hover-shadow);
}

/* ========== 标题样式分层设计 ========== */
/* 一级标题样式 - 最高级别（课程查询主标题）- 浅灰色系 */
.card-header.level-1 {
    background-color: #e9ecef;
    color: #495057;
    border-bottom: 1px solid var(--border-color);
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* 二级标题样式 - 次级（当前课程说明、信息填写等） */
.card-header.level-2 {
    background-color: var(--light-bg);
    color: #2d3748;
    border-bottom: 1px solid #f0f2f5;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

/* 三级标题样式 - 最低级别（查询结果、下单推荐、特别提醒等） */
.card-header.level-3 {
    background-color: #fafafa;
    color: #4a5568;
    border-bottom: 1px solid #f0f2f5;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

/* 标题图标通用样式 */
.card-header .title-icon {
    margin-right: 8px;
    font-size: 1.1em;
}

/* 二级标题图标颜色 */
.card-header.level-2 .title-icon {
    color: var(--primary-color);
}

.card-body {
    padding: 20px;
    background-color: #fff;
}

/* 课程查询主卡片样式 */
.query-main-card {
    margin-bottom: 20px;
}

.query-process {
    font-size: 14px;
    color: var(--text-main);
    padding: 12px 16px;
    background-color: #f5fafe;
    border-radius: 8px;
    margin-bottom: 16px;
    border-left: 3px solid var(--primary-color);
}

.query-search-card {
    background-color: #fafafa;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

/* ========== 记住上次选择按钮样式 ========== */
.remember-choice-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
}

.remember-choice-btn:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

.remember-choice-btn input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin-right: 6px;
}

/* ========== 按钮样式统一设计 ========== */
.btn-custom {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* 收藏按钮样式 */
.btn-collect-custom {
    background-color: #e8f4f8;
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-collect-custom:hover {
    background-color: #d0e8f2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(66, 153, 225, 0.1);
}

.btn-collect-custom.active {
    background-color: #fef7fb;
    color: var(--danger-color);
    border-color: #fcc4d8;
}

.btn-collect-custom.active:hover {
    background-color: #fde8ef;
    box-shadow: 0 4px 8px rgba(229, 62, 62, 0.1);
}

/* 主按钮 */
.btn-primary-custom {
    background-color: #e8f4f8;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-primary-custom:hover {
    background-color: #d0e8f2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(66, 153, 225, 0.1);
}

/* 重置按钮样式 */
.btn-reset-custom {
    background-color: var(--light-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-left: 10px;
}

.btn-reset-custom:hover {
    background-color: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(113, 128, 150, 0.1);
}

/* 次要按钮 */
.btn-secondary-custom {
    background-color: var(--light-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary-custom:hover {
    background-color: #e9ecef;
}

/* 警告按钮 */
.btn-warning-custom {
    background-color: #fef7fb;
    color: var(--warning-color);
    border: 1px solid var(--border-color);
}

.btn-warning-custom:hover {
    background-color: #fde8ef;
}

/* 危险按钮 */
.btn-danger-custom {
    background-color: #fef7fb;
    color: var(--danger-color);
    border: 1px solid var(--border-color);
}

.btn-danger-custom:hover {
    background-color: #fde8ef;
}

/* 轮廓按钮 */
.btn-outline-custom {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline-custom:hover {
    background-color: #e9ecef;
}

/* 查询课程宽按钮样式（占卡片80%宽度） */
.btn-query-wide {
    width: 80%;
    padding: 10px 0;
    margin: 0 auto;
    display: block;
    /* 新增/修改：深蓝色按钮样式 */
    background-color: #2b6cb0 !important; /* 深蓝主色 */
    color: #ffffff !important; /* 白色文字 */
    border: 1px solid #2b6cb0 !important; /* 边框与背景色一致 */
    border-radius: 8px; /* 保持与其他按钮统一的圆角 */
    font-weight: 500; /* 文字加粗，更醒目 */
    transition: all 0.2s ease; /* 过渡效果，hover时更顺滑 */
}

/* 新增：hover 悬浮效果，加深蓝色，添加阴影 */
.btn-query-wide:hover {
    background-color: #2c5282 !important; /* 更深的蓝色 */
    border-color: #2c5282 !important; /* 边框同步加深 */
    color: #ffffff !important;
    transform: translateY(-2px); /* 轻微上浮，提升交互感 */
    box-shadow: 0 4px 8px rgba(43, 108, 176, 0.2); /* 阴影效果，更立体 */
}

/* 提交宽按钮样式（占卡片80%宽度） */
.btn-submit-wide {
    width: 80%;
    padding: 10px 0;
    margin: 10px auto 20px;
    display: block;
    background-color: #34d399 !important;
    color: #ffffff !important;
    border: 1px solid #34d399 !important;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-submit-wide:hover {
    background-color: #10b981 !important;
    border-color: #10b981 !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(52, 211, 153, 0.25);
}

/* ========== 使用说明弹窗样式 ========== */
.instructions-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    max-width: 90%;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    z-index: 10000;
    overflow: hidden;
}

.instructions-modal-header {
    padding: 16px 20px;
    background-color: #e8f4f8;
    color: var(--primary-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
}

.instructions-modal-title {
    font-size: 16px;
    font-weight: 600;
}

.instructions-modal-close {
    font-size: 20px;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(66, 153, 225, 0.1);
    color: var(--primary-color);
    transition: all 0.2s;
}

.instructions-modal-close:hover {
    background-color: rgba(66, 153, 225, 0.2);
}

.instructions-modal-body {
    padding: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.instructions-modal-body .instruction-title {
    font-size: 15px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 12px;
}

.instructions-modal-body .instruction-step {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f2f5;
}

.instructions-modal-body .instruction-step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.instructions-modal-body .step-number {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-color: #e8f4f8;
    color: var(--primary-color);
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-size: 12px;
    margin-right: 8px;
    border: 1px solid var(--border-color);
}

.instructions-modal-body .step-content {
    color: var(--text-main);
    line-height: 1.6;
    font-size: 14px;
}

.instructions-modal-body .step-note {
    margin-top: 8px;
    padding: 8px 12px;
    background-color: #f5fafe;
    border-radius: 6px;
    font-size: 13px;
    color: #2d3748;
}

/* 遮罩层 - 不影响页面交互 */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.05);
    z-index: 9999;
    pointer-events: none;
}

.instructions-modal {
    pointer-events: auto;
}

/* ========== 收藏成功提示框样式 ========== */
.toast {
    position: fixed;
    top: 20px; /* 调整为顶部显示，避免遮挡内容 */
    left: 50%;
    transform: translate(-50%, 0);
    padding: 12px 24px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-main);
    font-size: 14px;
    z-index: 999999;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.control-label {
    font-weight: 500;
    color: #495057;
    padding-top: 8px;
    display: block;
    margin-bottom: 8px;
}

/* ========== 下单推荐样式 ========== */
.recommendation-container {
    background-color: #f7f3e9;
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
    padding: 12px 14px;
    margin-top: 0;
    height: auto;
}

.recommendation-title {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 8px;
    font-size: 15px;
}

.recommendation-list {
    list-style: none;
    padding-left: 0;
}

.recommendation-item {
    margin-bottom: 4px;
    line-height: 1.4;
}

.recommendation-tag {
    display: inline-block;
    padding: 3px 6px;
    margin: 0 3px 3px 0;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
}

.tag-info {
    background-color: #e8f4f8;
    color: var(--primary-color);
}

.tag-success {
    background-color: #d4edda;
    color: var(--success-color);
}

.tag-warning {
    background-color: #fff3cd;
    color: var(--warning-color);
}

.recommendation-note {
    margin-top: 8px;
    font-size: 12px;
    color: #6c757d;
    padding-top: 6px;
    border-top: 1px dashed #ffeeba;
    line-height: 1.4;
}

/* ========== 特别提醒样式 ========== */
.reminder-container {
    background-color: #fef7fb;
    border-radius: 8px;
    border-left: 4px solid var(--danger-color);
    padding: 12px 14px;
    height: auto;
}

.reminder-title {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 8px;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.reminder-list {
    list-style: none;
    padding-left: 0;
    color: var(--text-main);
    line-height: 1.5;
}

.reminder-item {
    margin-bottom: 4px;
    font-size: 14px;
    line-height: 1.4;
}

/* 查询结果样式 */
.result-card {
    margin-bottom: 0;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-title {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #2d3748;
    font-weight: 600;
}

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

/* 课程项样式 */
.course-group {
    margin-bottom: 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
}

.collapse-header {
    padding: 12px 15px;
    background-color: var(--light-bg);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.collapse-header:hover {
    background-color: #f0f2f5;
    transition: background-color 0.2s ease;
}

.user-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.user-info i {
    color: var(--primary-color);
    margin-right: 8px;
}

.user-info b {
    margin-right: 8px;
    color: #333;
}

.text-muted {
    color: #666;
    margin-right: 8px;
    font-size: 13px;
}

.query-status {
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
}

.badge-success {
    background-color: #d4edda;
    color: var(--success-color);
    border: 1px solid var(--border-color);
}

.badge-danger {
    background-color: #fef7fb;
    color: var(--danger-color);
    border: 1px solid var(--border-color);
}

.collapse-icon {
    color: #666;
}

.collapse-content {
    background-color: #fff;
}

.category-info {
    padding: 10px 15px;
    background-color: #fafafa;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-count {
    font-size: 13px;
    color: #666;
}

.course-actions {
    display: flex;
    gap: 5px;
}

/* 全选/取消全选按钮样式 */
.action-btn {
    padding: 2px 8px;
    height: 28px;
    font-size: 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
}

.btn-primary-custom.action-btn {
    background-color: #e8f4f8;
    color: var(--primary-color);
}

.btn-danger-custom.action-btn {
    background-color: #fef7fb;
    color: var(--danger-color);
}

/* 使用说明/重置按钮样式 */
.btn-help-reset {
    padding: 6px 12px;
    height: 32px;
    font-size: 13px;
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.btn-help-reset:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
}

.course-item {
    padding: 8px 15px;
    border-bottom: 1px dashed #eee;
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-item:last-child {
    border-bottom: none;
}

.course-item:hover {
    background-color: var(--light-bg);
    transition: background-color 0.2s ease;
    border-radius: 4px;
}

.checkbox-success {
    display: flex;
    align-items: center;
    width: 100%;
    cursor: pointer;
}

.checkbox-success input[type="checkbox"] {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin: 0;
    margin-right: 12px;
}

.course-info {
    flex: 1;
}

.course-name {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.course-status {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
    line-height: 1.2;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

/* 加载和空状态 */
.loading-state {
    text-align: center;
    padding: 40px 0;
}

.loading-state > div {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    margin-top: 15px;
    color: #666;
    font-size: 14px;
}

.empty-state {
    text-align: center;
    padding: 40px 0;
    color: #999;
}

.empty-state i {
    font-size: 40px;
    margin-bottom: 10px;
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 核心布局样式（收藏筛选行） ========== */
.search-card-top-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap !important;
    min-width: 500px !important;
}

/* 仅看收藏容器 - 固定宽度120px */
.collect-filter-wrapper {
    flex: 0 0 120px !important;
    max-width: 120px !important;
    height: 40px;
    display: flex;
    align-items: center;
}

/* 输入框容器 - 占满剩余空间 */
.course-select-wrapper {
    flex: 1 1 auto !important;
    width: 100% !important;
    height: 40px;
    min-width: 200px;
}

/* 收藏按钮容器 - 固定宽度120px */
.collect-btn-wrapper {
    flex: 0 0 120px !important;
    max-width: 120px !important;
    justify-content: flex-end !important;
    height: 40px;
    display: flex;
    align-items: center;
}

/* 收藏按钮样式优化 */
.btn-collect-add {
    background-color: #e8f4f8;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-collect-add:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-collect-remove {
    background-color: #fef7fb;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

.btn-collect-remove:hover {
    background-color: var(--danger-color);
    color: white;
}

/* 禁用状态按钮样式 */
.btn-collect-disabled {
    background-color: #f5f5f5;
    color: #999;
    border: 1px solid #ddd;
    cursor: not-allowed !important;
}

.btn-collect-disabled:hover {
    background-color: #f5f5f5;
    color: #999;
}

/* 蓝绿色背景样式（输入框） */
.el-select, .layui-select, .layui-textarea {
    background-color: #e0f2f1 !important;
}

/* ElementUI下拉框内部样式适配 */
.el-select {
    width: 100% !important;
    height: 40px !important;
    border-radius: 8px !important;
    border: 1px solid var(--border-color) !important;
}

.el-select .el-input__inner {
    background-color: #e0f2f1 !important;
    border: none !important;
    height: 38px !important;
    line-height: 38px !important;
}

.el-select-dropdown {
    background-color: #ffffff !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
}

.el-select-dropdown__item {
    padding: 0 !important;
}

.el-select-dropdown__item span {
    display: block;
    padding: 6px 12px;
}

.el-select-dropdown__item:hover {
    background-color: #f5fafe !important;
}

/* 课程下拉选项样式 */
.course-option-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0 4px;
}

.course-option-name {
    text-align: left;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course-option-price {
    text-align: right;
    color: var(--danger-color);
    min-width: 60px;
    margin-left: 8px;
}

/* 折叠面板样式 */
.collapsible-card .collapse-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.collapsible-card .collapse-header:hover {
    background-color: var(--light-bg);
}

.collapsible-card .collapse-content {
    transition: all 0.3s ease;
}

.collect-filter-checkbox {
    font-weight: normal;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    width: 100%;
}

/* ========== 响应式适配 ========== */
@media (max-width: 768px) {
    .layui-col-md6 {
        width: 100% !important;
        margin-bottom: 20px !important;
        padding: 0 10px !important;
    }
    
    .btn-query-wide, .btn-submit-wide {
        width: 100%;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .result-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }
    
    .instructions-modal {
        width: 95%;
        max-height: 80vh;
    }

    /* 核心筛选行响应式调整 */
    .search-card-top-row {
        min-width: unset !important;
        flex-wrap: wrap !important;
        gap: 10px !important;
    }
    
    .collect-filter-wrapper, .collect-btn-wrapper {
        flex: 0 0 100% !important;
        max-width: 100% !important;
        margin-bottom: 10px !important;
        justify-content: flex-start !important;
    }
    
    .course-select-wrapper {
        flex: 0 0 100% !important;
        width: 100% !important;
    }
    
    /* 适配移动端表单间距 */
    .form-group {
        margin-bottom: 15px;
    }
    
    .card-body {
        padding: 15px 10px;
    }
}

/* 清理冗余样式（移除原代码中未闭合的无效样式） */
.order-container, .order-section, .section-title, .content-list, .remind-list {
    display: none; /* 原代码中冗余，隐藏避免干扰 */
}