/* 学生端我的页面统一美化：我的课程/项目/挑战/活动 */

/* 我的课程页：按课程学习页风格做统一配色与层次 */
.student-my-courses-page .dashboard-header {
    position: relative;
    margin-bottom: 18px;
    padding: 20px 24px 18px 28px;
    border-radius: 14px;
    border: 1px solid rgba(10, 36, 99, 0.1);
    border-left: none;
    background: #fff;
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
}

.student-my-courses-page .dashboard-header h1 {
    color: #0f2f66;
}

.student-my-courses-page .dashboard-header .welcome {
    color: #455a78;
}

.student-my-courses-page .my-overview-cards {
    padding: 0;
    border: none;
    background: transparent;
    gap: 12px;
}

.student-my-courses-page .my-overview-card {
    position: relative;
    background: #fff;
    border: 1px solid rgba(10, 36, 99, 0.1);
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
    padding: 16px 18px 16px 22px;
    overflow: hidden;
}

.student-my-courses-page .my-overview-card.card-accent-amber,
.student-my-courses-page .my-overview-card.card-accent-green,
.student-my-courses-page .my-overview-card.card-accent-blue,
.student-my-courses-page .my-overview-card.card-accent-violet {
    background: #fff;
    border-color: rgba(10, 36, 99, 0.1);
}

.student-my-courses-page .my-overview-card .label {
    color: #667a98;
    margin-bottom: 8px;
}

.student-my-courses-page .my-overview-card .value {
    color: #0f2f66;
}

.student-my-courses-page .course-section {
    border: 1px solid rgba(10, 36, 99, 0.1);
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
}

.student-my-courses-page .learning-section,
.student-my-courses-page .completed-section {
    border-top: none;
    border-left: 4px solid transparent;
}

.student-my-courses-page .learning-section { border-left-color: #3e92cc; }
.student-my-courses-page .completed-section { border-left-color: #2f855a; }

.student-my-courses-page .learning-section .course-section-header {
    background: rgba(62, 146, 204, 0.05);
    border-bottom: 1px solid rgba(62, 146, 204, 0.1);
}

.student-my-courses-page .completed-section .course-section-header {
    background: rgba(72, 187, 120, 0.05);
    border-bottom: 1px solid rgba(72, 187, 120, 0.1);
}

.student-my-courses-page .btn-continue,
.student-my-courses-page .btn-primary {
    background: linear-gradient(135deg, #3e92cc 0%, #0a2463 100%);
}

.student-my-courses-page .btn-continue:hover,
.student-my-courses-page .btn-primary:hover {
    background: linear-gradient(135deg, #2d7fbd 0%, #081d50 100%);
}

/* 我的挑战页：进行中按钮样式与我的课程一致 */
.student-my-challenges-page .learning-section .btn-continue {
    background: linear-gradient(135deg, #3e92cc 0%, #0a2463 100%);
}

.student-my-challenges-page .learning-section .btn-continue:hover {
    background: linear-gradient(135deg, #2d7fbd 0%, #081d50 100%);
}

.student-my-challenges-page .learning-section .course-entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.student-my-challenges-page .learning-section .course-entry-actions .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

/* 我的活动页：参照挑战页版式 */
.student-my-activities-page .learning-section .btn-continue {
    background: linear-gradient(135deg, #3e92cc 0%, #0a2463 100%);
}

.student-my-activities-page .learning-section .btn-continue:hover {
    background: linear-gradient(135deg, #2d7fbd 0%, #081d50 100%);
}

.student-my-activities-page .learning-section .course-entry-actions,
.student-my-activities-page .completed-section .course-entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.student-my-activities-page .course-entry-actions .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

/* 行程查询入口 */
.student-my-activities-page .itinerary-query-wrap {
    padding: 14px 18px 18px;
    border-top: 1px dashed rgba(62, 146, 204, 0.2);
    margin-top: 4px;
}

.student-my-activities-page .itinerary-query-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: #0e4d8a;
    text-decoration: none;
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.1) 0%, rgba(62, 146, 204, 0.05) 100%);
    border: 1px solid rgba(62, 146, 204, 0.25);
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.student-my-activities-page .itinerary-query-link:hover {
    transform: translateY(-1px);
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.16) 0%, rgba(62, 146, 204, 0.08) 100%);
    box-shadow: 0 4px 12px rgba(62, 146, 204, 0.2);
}

.student-my-activities-page .itinerary-query-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.student-my-activities-page .btn-itinerary {
    color: #0e4d8a;
    border: 1px solid rgba(62, 146, 204, 0.4);
    background: rgba(62, 146, 204, 0.08);
}

.student-my-activities-page .btn-itinerary:hover {
    background: rgba(62, 146, 204, 0.16);
    border-color: rgba(62, 146, 204, 0.55);
}

/* 我的项目页：对齐我的课程页的版式层级 */
.student-my-projects-page .dashboard-header {
    position: relative;
    margin-bottom: 18px;
    padding: 20px 24px 18px 28px;
    border-radius: 14px;
    border: 1px solid rgba(10, 36, 99, 0.1);
    border-left: none;
    background: #fff;
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
}

.student-my-projects-page .dashboard-header h1 { color: #0f2f66; }
.student-my-projects-page .dashboard-header .welcome { color: #455a78; }

.student-my-projects-page .my-overview-cards {
    padding: 0;
    border: none;
    background: transparent;
    gap: 12px;
}

.student-my-projects-page .my-overview-card {
    position: relative;
    background: #fff;
    border: 1px solid rgba(10, 36, 99, 0.1);
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
    padding: 16px 18px 16px 22px;
    overflow: hidden;
}

.student-my-projects-page .my-overview-card.card-accent-amber,
.student-my-projects-page .my-overview-card.card-accent-green,
.student-my-projects-page .my-overview-card.card-accent-blue,
.student-my-projects-page .my-overview-card.card-accent-violet {
    background: #fff;
    border-color: rgba(10, 36, 99, 0.1);
}

.student-my-projects-page .my-overview-card .label {
    color: #667a98;
    margin-bottom: 8px;
}

.student-my-projects-page .my-overview-card .value { color: #0f2f66; }

.student-my-projects-page .course-section {
    border: 1px solid rgba(10, 36, 99, 0.1);
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
}

.student-my-projects-page .learning-section,
.student-my-projects-page .completed-section {
    border-top: none;
    border-left: 4px solid transparent;
}

.student-my-projects-page .learning-section { border-left-color: #3e92cc; }
.student-my-projects-page .completed-section { border-left-color: #2f855a; }

.student-my-projects-page .learning-section .course-section-header {
    background: rgba(62, 146, 204, 0.05);
    border-bottom: 1px solid rgba(62, 146, 204, 0.1);
}

.student-my-projects-page .completed-section .course-section-header {
    background: rgba(72, 187, 120, 0.05);
    border-bottom: 1px solid rgba(72, 187, 120, 0.1);
}

.student-my-projects-page .course-entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

/* 项目页：进行中/已完成区按钮样式与课程页一致 */
.student-my-projects-page .course-entry-actions .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

.student-my-page .dashboard-main {
    padding-top: 20px;
}

.student-my-page .dashboard-header {
    margin-bottom: 18px;
    padding: 22px 24px;
    border-radius: 14px;
    border: 1px solid rgba(62, 146, 204, 0.14);
    border-left: 4px solid var(--light-blue);
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.08) 0%, rgba(10, 36, 99, 0.04) 100%);
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.07);
}

.student-my-page .dashboard-header h1 {
    margin-bottom: 6px;
}

.student-my-page .dashboard-header .welcome {
    margin-top: 0;
    color: #4f5f79;
}

.student-my-page .dashboard-header .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.student-my-page .dashboard-header .btn-secondary {
    color: #fff;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--light-blue) 0%, #2a7ab8 100%);
    box-shadow: 0 4px 12px rgba(62, 146, 204, 0.3);
}

.student-my-page .dashboard-header .btn-secondary:hover {
    transform: translateY(-1px);
    background: linear-gradient(135deg, #2a7ab8 0%, var(--deep-space-blue) 100%);
    box-shadow: 0 6px 16px rgba(62, 146, 204, 0.38);
}

.student-my-page .my-overview-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px 24px;
    border-radius: 16px;
    background: linear-gradient(145deg, rgba(248, 250, 252, 0.95) 0%, rgba(241, 245, 249, 0.9) 100%);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.student-my-page .my-overview-card {
    border-radius: 14px;
    padding: 18px 20px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.student-my-page .my-overview-card.card-accent-amber {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.12) 0%, rgba(254, 243, 199, 0.6) 100%);
    border: 1px solid rgba(251, 191, 36, 0.25);
}

.student-my-page .my-overview-card.card-accent-green {
    background: linear-gradient(135deg, rgba(72, 187, 120, 0.1) 0%, rgba(187, 247, 208, 0.5) 100%);
    border: 1px solid rgba(72, 187, 120, 0.22);
}

.student-my-page .my-overview-card.card-accent-blue {
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.1) 0%, rgba(191, 219, 254, 0.5) 100%);
    border: 1px solid rgba(62, 146, 204, 0.22);
}

.student-my-page .my-overview-card.card-accent-violet {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, rgba(233, 213, 255, 0.5) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.student-my-page .my-overview-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.student-my-page .my-overview-card .label {
    margin: 0 0 10px 0;
    font-size: 13px;
    font-weight: 500;
    color: #64748b;
}

.student-my-page .my-overview-card.card-accent-amber .value { color: #b45309; }
.student-my-page .my-overview-card.card-accent-green .value { color: #2f855a; }
.student-my-page .my-overview-card.card-accent-blue .value { color: #0e4d8a; }
.student-my-page .my-overview-card.card-accent-violet .value { color: #5b21b6; }

.student-my-page .my-overview-card .value {
    margin: 0;
    font-size: 26px;
    line-height: 1.2;
    font-weight: 700;
}

.student-my-page .course-entry,
.student-my-page .project-entry,
.student-my-page .challenge-entry,
.student-my-page .activity-entry {
    background: #fff;
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.07);
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.06);
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.student-my-page .course-entry:hover,
.student-my-page .project-entry:hover,
.student-my-page .challenge-entry:hover,
.student-my-page .activity-entry:hover {
    transform: translateY(-2px);
    border-color: rgba(62, 146, 204, 0.22);
    box-shadow: 0 10px 24px rgba(10, 36, 99, 0.1);
}

.student-my-page .course-entry-thumb {
    border-radius: 12px;
    position: relative;
}

/* 状态徽章叠在图片上 */
.student-my-page .course-entry-thumb .course-status-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.3;
    z-index: 2;
}

/* 正在学习：暖色调醒目 */
.student-my-page .learning-section .course-status-badge.learning {
    color: #fff;
    background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
    box-shadow: 0 2px 8px rgba(234, 88, 12, 0.45);
}

.student-my-page .completed-section .course-status-badge.completed {
    color: #fff;
    background: rgba(0, 0, 0, 0.72);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.student-my-page .course-entry .course-tag {
    border: 1px solid rgba(62, 146, 204, 0.16);
    background: rgba(62, 146, 204, 0.08);
    color: var(--light-blue);
}

.student-my-page .course-progress-row .progress-bar-wrap {
    background: #e5ecf5;
}

.student-my-page .course-progress-row .progress-bar-fill {
    background: linear-gradient(90deg, var(--light-blue) 0%, #2a7ab8 100%);
}

.student-my-page .btn-continue,
.student-my-page .challenge-entry-actions .btn-sm,
.student-my-page .project-entry-body .btn-sm,
.student-my-page .activity-entry-body .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

.student-my-page .btn-continue,
.student-my-page .btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--light-blue) 0%, #2a7ab8 100%);
    box-shadow: 0 4px 10px rgba(62, 146, 204, 0.25);
}

.student-my-page .btn-continue:hover,
.student-my-page .btn-primary:hover {
    transform: translateY(-1px);
    background: linear-gradient(135deg, #2a7ab8 0%, var(--deep-space-blue) 100%);
    box-shadow: 0 6px 14px rgba(62, 146, 204, 0.35);
}

.student-my-page .btn-secondary {
    color: var(--deep-space-blue);
    border-color: rgba(62, 146, 204, 0.35);
    background: #fff;
}

.student-my-page .btn-secondary:hover {
    transform: translateY(-1px);
    background: rgba(62, 146, 204, 0.08);
    border-color: rgba(62, 146, 204, 0.55);
}

.student-my-page .challenge-entry-badge {
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 700;
}

.student-my-page .challenge-entry-badge.learning {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(254, 243, 199, 0.6) 100%);
    color: #b45309;
}

.student-my-page .challenge-entry-badge.completed {
    background: rgba(72, 187, 120, 0.16);
    color: #2f855a;
}

.student-my-page .activity-entry-date {
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.16) 0%, rgba(62, 146, 204, 0.08) 100%);
}

/* 内容区块：与顶部「我的课程」banner 明显区分，采用白底面板 + 顶部彩条 */
.student-my-page .course-section {
    margin-bottom: 24px;
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.student-my-page .learning-section {
    border-top: 3px solid var(--light-blue);
}

.student-my-page .completed-section {
    border-top: 3px solid #48bb78;
}

.student-my-page .course-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    margin-bottom: 0;
}

.student-my-page .learning-section .course-section-header {
    background: rgba(62, 146, 204, 0.06);
    border-bottom: 1px solid rgba(62, 146, 204, 0.12);
}

.student-my-page .completed-section .course-section-header {
    background: rgba(72, 187, 120, 0.06);
    border-bottom: 1px solid rgba(72, 187, 120, 0.12);
}

.student-my-page .course-section .course-list,
.student-my-page .course-section .project-list,
.student-my-page .course-section .challenge-list,
.student-my-page .course-section .activity-list {
    padding: 16px 18px;
}

.student-my-page .course-section-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}

.student-my-page .learning-section .course-section-header h2 {
    color: #0e4d8a;
}

.student-my-page .completed-section .course-section-header h2 {
    color: #2f855a;
}

.student-my-page .section-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    height: 26px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.student-my-page .learning-section .section-count {
    color: #0e4d8a;
    background: rgba(62, 146, 204, 0.15);
}

.student-my-page .completed-section .section-count {
    color: #2f855a;
    background: rgba(72, 187, 120, 0.18);
}

.student-my-page .course-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    padding: 0 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.student-my-page .course-status.learning {
    color: var(--light-blue);
    background: rgba(62, 146, 204, 0.14);
}

.student-my-page .course-status.completed {
    color: #2f855a;
    background: rgba(72, 187, 120, 0.18);
}

.student-my-page .completed-section .course-entry .progress-bar-fill {
    background: linear-gradient(90deg, #48bb78 0%, #2f855a 100%);
}

.student-my-page .completed-section .course-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.student-my-page .completed-section .course-meta-row .course-meta {
    margin: 0;
    flex: 1;
    min-width: 0;
}

.student-my-page .completed-section .course-ability-points {
    flex-shrink: 0;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    color: #2f855a;
    background: rgba(72, 187, 120, 0.16);
}

.student-my-page .completed-section .course-entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.student-my-page .completed-section .course-entry-actions .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}

/* 加载更多按钮（替代分页） */
.student-my-page .load-more-wrap {
    padding: 16px 18px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.student-my-page .btn-load-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 10px 28px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--deep-space-blue);
    border: 1px solid rgba(72, 187, 120, 0.45);
    background: #fff;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.student-my-page .btn-load-more:hover:not(:disabled) {
    transform: translateY(-1px);
    background: rgba(72, 187, 120, 0.08);
    border-color: rgba(72, 187, 120, 0.6);
    box-shadow: 0 4px 12px rgba(72, 187, 120, 0.2);
}

.student-my-page .btn-load-more:disabled {
    cursor: not-allowed;
    opacity: 0.8;
}

.student-my-page .completed-section .btn-load-more {
    color: #2f855a;
}

.student-my-page .course-section .list-pagination {
    margin-top: 0;
    padding: 14px 18px 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.student-my-page .list-pagination a,
.student-my-page .list-pagination .page-ellipsis {
    min-width: 34px;
    height: 34px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    text-decoration: none;
}

.student-my-page .list-pagination .page-btn,
.student-my-page .list-pagination .page-number {
    border: 1px solid rgba(62, 146, 204, 0.26);
    color: var(--deep-space-blue);
    background: #fff;
}

.student-my-page .list-pagination .page-number.active {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(135deg, var(--light-blue) 0%, #2a7ab8 100%);
}

.student-my-page .list-pagination .page-btn.disabled {
    color: #9aa7bc;
    border-color: rgba(0, 0, 0, 0.08);
    pointer-events: none;
}

.student-my-page .list-pagination .page-ellipsis {
    color: #7b889e;
}

@media (max-width: 992px) {
    .student-my-page .my-overview-cards {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .student-my-page .my-overview-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .student-my-page .dashboard-main {
        padding-top: 14px;
    }

    .student-my-page .dashboard-header {
        padding: 18px;
        margin-bottom: 14px;
    }

    .student-my-page .my-overview-cards {
        padding: 16px;
        gap: 12px;
    }

    .student-my-page .my-overview-card {
        padding: 14px 16px;
    }

    .student-my-page .my-overview-card .value {
        font-size: 22px;
    }

    .student-my-page .course-entry,
    .student-my-page .project-entry,
    .student-my-page .challenge-entry,
    .student-my-page .activity-entry {
        padding: 16px;
    }

    .student-my-page .course-section-header {
        padding: 12px 14px;
    }

    .student-my-page .course-section-header h2 {
        font-size: 18px;
    }

    .student-my-page .course-section .course-list,
    .student-my-page .course-section .project-list,
    .student-my-page .course-section .challenge-list,
    .student-my-page .course-section .activity-list {
        padding: 12px 14px;
    }

    .student-my-page .load-more-wrap {
        padding: 12px 14px 16px;
    }

    .student-my-page .btn-load-more {
        min-height: 38px;
        padding: 8px 22px;
        font-size: 13px;
    }
}

/* 证书弹窗遮罩 */
.certificate-modal {
    position: fixed;
    inset: 0;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.certificate-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.certificate-modal-content {
    position: relative;
    max-width: 560px;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    padding: 24px;
}

.certificate-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(0, 0, 0, 0.06);
    color: #4f5f79;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s;
}

.certificate-modal-close:hover {
    background: rgba(0, 0, 0, 0.12);
    color: #0e4d8a;
}

.certificate-modal-title {
    margin: 0 0 18px 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--deep-space-blue);
    flex-shrink: 0;
}

.certificate-modal-body {
    display: flex;
    flex-direction: column;
    gap: 18px;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.certificate-image-wrap {
    border-radius: 10px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.04);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-image {
    display: block;
    max-width: 100%;
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    vertical-align: top;
}

.certificate-blockchain-info {
    flex-shrink: 0;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.08) 0%, rgba(10, 36, 99, 0.04) 100%);
    border: 1px solid rgba(62, 146, 204, 0.18);
    border-radius: 10px;
}

.certificate-info-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.certificate-info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.certificate-info-row:first-child {
    padding-top: 0;
}

.certificate-info-label {
    flex-shrink: 0;
    font-size: 13px;
    color: #6b7c94;
    min-width: 72px;
}

.certificate-info-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--deep-space-blue);
    word-break: break-all;
}

.certificate-modal .btn-save-cert {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 40px;
    margin-top: 16px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    border: none;
    background: linear-gradient(135deg, #48bb78 0%, #2f855a 100%);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.certificate-modal .btn-save-cert:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(72, 187, 120, 0.4);
}

/* 证书弹窗响应式：随屏幕放大 */
@media (max-width: 480px) {
    .certificate-modal {
        padding: 12px;
    }
    .certificate-modal-content {
        max-width: 100%;
        padding: 18px;
    }
}

@media (min-width: 768px) {
    .certificate-modal-content {
        max-width: 680px;
        padding: 28px;
    }
}

@media (min-width: 992px) {
    .certificate-modal-content {
        max-width: 800px;
        padding: 32px;
    }
}

@media (min-width: 1200px) {
    .certificate-modal-content {
        max-width: 900px;
        padding: 36px;
    }
}

/* 我的班级页：老师安排的学习任务 */
.student-my-class-page .dashboard-header {
    margin-bottom: 18px;
    padding: 22px 24px;
    border-radius: 14px;
    border: 1px solid rgba(62, 146, 204, 0.14);
    border-left: 4px solid var(--light-blue);
    background: linear-gradient(135deg, rgba(62, 146, 204, 0.08) 0%, rgba(10, 36, 99, 0.04) 100%);
    box-shadow: 0 4px 14px rgba(10, 36, 99, 0.07);
}

.student-my-class-page .dashboard-header h1 { color: #0f2f66; }
.student-my-class-page .dashboard-header .welcome { color: #4f5f79; }

.student-my-class-page .course-entry .course-status-badge.learning {
    background: linear-gradient(135deg, #3e92cc 0%, #0a2463 100%);
    color: #fff;
}

.student-my-class-page .activity-entry-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(62, 146, 204, 0.2);
    color: #0e4d8a;
    margin-bottom: 8px;
}

.student-my-class-page .dashboard-tab-content {
    padding: 24px;
}

.student-my-class-page .challenge-list,
.student-my-class-page .project-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 我的班级页：班级挑战按钮大小与“我的挑战-进行中”一致 */
.student-my-class-page #tab-class-challenges .course-entry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.student-my-class-page #tab-class-challenges .course-entry-actions .btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
}