/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f6f9;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #4a90e2;
    padding: 10px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.navbar-brand h1 {
    margin: 0;
    color: white;
    font-size: 1.5rem;
}

.navbar-links {
    display: flex;
    gap: 15px;
}

.navbar-links a {
    color: white;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.navbar-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.navbar-links a.active {
    background-color: rgba(255, 255, 255, 0.3);
    font-weight: bold;
}

/* 媒体查询：适配移动端竖屏 */
@media (max-width: 576px) {
    .navbar {
        flex-direction: column;
        align-items: center;
    }

    .navbar-brand {
        margin-bottom: 10px;
    }

    .navbar-links {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .navbar-links a {
        margin: 5px 0;
    }
}

/* 主页内容样式 */
.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

.main-content h2 {
    color: #4a90e2;
    margin-bottom: 20px;
}

/* 大事件倒计时样式 */
.countdown-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.countdown-container h2 {
    color: #4a90e2;
    margin-bottom: 15px;
}

#countdown-info {
    text-align: center;
}

#event-name {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #4a90e2;
}

#countdown {
    font-size: 1.1rem;
    color: #e74c3c;
}

/* 班级相册样式 */
.album-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.album-container h2 {
    color: #4a90e2;
    text-align: center;
    margin-bottom: 30px;
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.photo-item {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    cursor: pointer;
}

.photo-item:hover {
    transform: translateY(-5px);
}

.photo-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.photo-info {
    padding: 10px;
    text-align: center;
    font-size: 0.9rem;
}

.photo-caption {
    font-weight: bold;
    margin-bottom: 5px;
}

.photo-uploader {
    color: #666;
    font-size: 0.9em;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    position: relative;
    margin: auto;
    padding: 20px;
    width: 80%;
    max-width: 800px;
    max-height: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.modal-caption {
    color: white;
    text-align: center;
    margin-top: 10px;
    font-size: 1.1em;
}

.modal-uploader {
    color: white;
    text-align: center;
    margin-top: 5px;
    font-size: 0.9em;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 30px;
    color: white;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
}

/* 班级语录样式 */
.quotes-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.quotes-container h2 {
    color: #4a90e2;
    text-align: center;
    margin-bottom: 30px;
}

.add-quote-form {
    margin-bottom: 30px;
}

.add-quote-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-height: 100px;
    resize: vertical;
}

.add-quote-form button {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.add-quote-form button:hover {
    background-color: #3a7bc8;
}

.quotes-list {
    margin-top: 30px;
}

.quote-item {
    background-color: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.quote-text {
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 10px;
}

.quote-author {
    text-align: right;
    font-weight: bold;
}

.quote-date {
    text-align: right;
    color: #777;
    font-size: 0.9rem;
}

/* 我的账号样式 */
.account-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.account-container h2 {
    color: #4a90e2;
    text-align: center;
    margin-bottom: 30px;
}

.account-info {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.account-info p {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.account-actions {
    text-align: center;
}

.account-actions form {
    margin-bottom: 20px;
}

.account-actions input {
    padding: 8px;
    margin-right: 10px;
    width: 200px;
}

.account-actions button {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.account-actions button:hover {
    background-color: #3a7bc8;
}

.account-actions a {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.account-actions a:hover {
    background-color: #c0392b;
}

/* 后台管理样式 */
.admin-header {
    background-color: #2c3e50;
    color: white;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    margin: 0;
}

.admin-header .logout {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

.admin-dashboard {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    margin-top: 0;
    color: #4a90e2;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: bold;
}

.admin-menu {
    display: flex;
    margin-bottom: 30px;
}

.admin-menu a {
    flex: 1;
    padding: 15px;
    text-align: center;
    background-color: #4a90e2;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    margin-right: 10px;
    transition: background-color 0.3s;
}

.admin-menu a:last-child {
    margin-right: 0;
}

.admin-menu a:hover {
    background-color: #3a7bc8;
}

/* 后台管理相册样式 */
.photo-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.photo-actions button {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.photo-actions button:hover {
    background-color: #c0392b;
}

/* 后台管理语录样式 */
.quote-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.quote-actions button {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.quote-actions button:hover {
    background-color: #c0392b;
}

/* 后台管理大事件样式 */
.event-management {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.event-management h2 {
    color: #4a90e2;
    text-align: center;
    margin-bottom: 30px;
}

.event-form {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.event-form h3 {
    color: #4a90e2;
    margin-top: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    min-height: 100px;
    resize: vertical;
}

button[type="submit"] {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button[type="submit"]:hover {
    background-color: #3a7bc8;
}

/* 当前页面高亮 */
.active {
    background-color: #3a7bc8;
}

/* 音乐播放器样式 */
#background-music {
    display: none;
}

#music-control {
    cursor: pointer;
}