/* 卷·心菜 - 前端样式 */

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

:root {
    --primary-color: #2196F3;
    --primary-dark: #1976D2;
    --secondary-color: #64B5F6;
    --background-color: #f5f7fa;
    --card-background: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    padding-bottom: 70px;
}

/* 顶部导航 */
.header {
    background: transparent;
    color: white;
    padding: 0;
    text-align: center;
    position: relative;
    top: 0;
    z-index: 100;
    box-shadow: none;
    overflow: visible;
}

.header-banner {
    width: 100%;
    height: 160px; /* 横幅高度 */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 横幅上的网站标题 */
.site-title-on-banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 0, 0, 0.4);
    margin: 0;
    z-index: 10;
    letter-spacing: 2px;
}

.header.has-banner {
    box-shadow: var(--shadow);
}

/* 瞬间页面横幅 */
.moments-header-banner {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #87CEEB;
    border-radius: 12px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: visible;
}

.moments-header-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.moments-signature {
    position: absolute;
    bottom: 16px;
    right: 20px;
    left: 20px;
    z-index: 2;
    font-size: 0.95rem;
    font-style: italic;
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    margin: 0;
    max-width: calc(100% - 40px);
    text-align: right;
    line-height: 1.5;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
    padding: 16px;
    margin: 0;
}

/* 主内容区 */
.main-content {
    min-height: calc(100vh - 130px);
    overflow-x: hidden;
}

.page {
    display: none;
    padding: 16px;
    width: 100%;
}

.page.active {
    display: block;
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 轮播图 */
.carousel-section {
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.carousel-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.carousel {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-item {
    min-width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: flex-end;
}

.carousel-item-title {
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: white;
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.carousel-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 1;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-dot.active {
    background: white;
}

/* 分类网格 */
.category-section {
    margin-bottom: 24px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
}

.category-item {
    background: var(--card-background);
    border-radius: 12px;
    padding: 12px 6px;
    text-align: center;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    min-width: 70px;
}

.category-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.category-item.active {
    background: var(--primary-color);
    color: white;
}

.category-item.active .category-label {
    color: white;
}

.category-item .category-icon {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 4px;
}

.category-item .category-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Emoji 网格 */
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.emoji-item {
    background: var(--card-background);
    border-radius: 12px;
    padding: 16px 8px;
    text-align: center;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.emoji-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.emoji-item .emoji {
    font-size: 2rem;
    display: block;
    margin-bottom: 4px;
}

.emoji-item .label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* 文章列表 */
.article-section {
    margin-top: 24px;
}

.article-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-title {
    font-size: 1.25rem;
    margin-bottom: 0;
    padding-left: 12px;
    border-left: 4px solid var(--primary-color);
}

.article-search-box {
    display: flex;
    gap: 8px;
}

.search-input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    width: 180px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: var(--primary-color);
}

.search-btn {
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}

.search-btn:hover {
    background: var(--primary-dark);
}

/* 发布文章栏 */
.article-publish-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.btn-publish-article {
    padding: 10px 20px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-publish-article:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

#user-info-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

#user-nickname-display {
    font-weight: 600;
    color: var(--text-primary);
}

.btn-logout-small {
    padding: 6px 12px;
    border: none;
    background: #f5f5f5;
    color: #666;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.btn-logout-small:hover {
    background: #e0e0e0;
}

/* 发布图标 */
.btn-publish-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    margin-left: 8px;
}

.btn-publish-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* 文章操作按钮 */
.article-actions {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.2s;
}

.article-card:hover .article-actions {
    opacity: 1;
}

.btn-action-edit,
.btn-action-delete {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-action-edit:hover {
    background: #4CAF50;
    transform: scale(1.1);
}

.btn-action-delete:hover {
    background: #f44336;
    transform: scale(1.1);
}

/* 瞬间操作按钮 */
.moment-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.moment-actions .btn-action-edit,
.moment-actions .btn-action-delete {
    width: 28px;
    height: 28px;
    font-size: 0.9rem;
}

/* 瞬间页标题栏 */
.moments-section-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.moments-section-header .section-title {
    margin-bottom: 0;
}

/* 横幅编辑提示 */
.banner-edit-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 10;
    white-space: nowrap;
    backdrop-filter: blur(4px);
}

.moments-header-banner:hover .banner-edit-hint {
    opacity: 1;
}

/* 未登录提示 */
.banner-login-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(244, 67, 54, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    z-index: 10;
    white-space: nowrap;
    backdrop-filter: blur(4px);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.4);
}

.banner-login-hint:hover {
    background: rgba(244, 67, 54, 1);
    transform: translate(-50%, -50%) scale(1.05);
}

/* 瞬间页面右上角操作菜单 */
.moments-actions {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 100;
}

.btn-actions-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.btn-actions-toggle:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.actions-menu {
    position: absolute;
    top: 50px;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 200px;
    backdrop-filter: blur(10px);
}

/* 个性签名编辑菜单 */
.signature-edit-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.signature-input-menu {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 0.85rem;
    outline: none;
    transition: all 0.2s;
}

.signature-input-menu:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.btn-save-signature-menu {
    width: 36px;
    height: 36px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-save-signature-menu:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* 发布瞬间按钮菜单 */
.btn-publish-moment-menu {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 24px;
    font-size: 0.9rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s;
    cursor: pointer;
    white-space: nowrap;
}

.btn-publish-moment-menu:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-publish-moment-menu .btn-icon {
    font-size: 1.2rem;
}

.btn-publish-moment-menu .btn-text {
    font-weight: 500;
}

/* 个性签名编辑容器（旧样式） */
.signature-edit-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 16px 0 24px;
    padding: 0 20px;
}

.signature-input-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.signature-input {
    width: 100%;
    max-width: 280px;
    padding: 10px 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    outline: none;
    transition: all 0.2s;
}

.signature-input:focus {
    border-color: rgba(102, 126, 234, 0.5);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.signature-input::placeholder {
    color: #999;
}

.btn-save-signature {
    padding: 10px 16px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    width: 42px;
    height: 42px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-save-signature:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.5);
}

/* 发布瞬间按钮 */
.btn-publish-moment {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 24px;
    font-size: 0.95rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s;
    cursor: pointer;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
}

.btn-publish-moment:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-publish-moment .btn-icon {
    font-size: 1.3rem;
}

/* 关于页头像登录提示 */
.avatar-container {
    position: relative;
    display: inline-block;
    margin-bottom: 16px;
}

.avatar-login-hint {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(244, 67, 54, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    white-space: nowrap;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(244, 67, 54, 0.4);
    opacity: 0;
    transition: all 0.3s;
    cursor: pointer;
    max-width: 90%;
    overflow: hidden;
    text-overflow: ellipsis;
}

.avatar-container:hover .avatar-login-hint {
    opacity: 1;
}

/* 关于页用户登录状态 */
.user-login-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 16px 0;
    padding: 12px 20px;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
    max-width: 100%;
    overflow: hidden;
}

.user-nickname-display {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
}

.btn-logout {
    padding: 8px 18px;
    border: none;
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-logout:hover {
    background: rgba(244, 67, 54, 0.2);
    color: #d32f2f;
}
    background: #e0e0e0;
}

/* 瞬间图片网格（发布模态框） */
#moment-image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
    min-height: 120px;
}

.moment-image-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    background: var(--background-color);
    border: 2px solid var(--border-color);
}

.moment-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.moment-image-item .delete-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(244, 67, 54, 0.9);
    color: white;
    border: none;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.moment-image-item .delete-btn:hover {
    transform: scale(1.1);
}

.moment-upload-buttons {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-upload {
    min-height: 44px;
    padding: 10px 20px;
}

.moment-image-count {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: var(--background-color);
    border-radius: 8px;
}

.moment-image-count.warning {
    color: var(--warning-color);
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.pagination-btn {
    padding: 8px 16px;
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
    color: var(--text-primary);
}

.pagination-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination-ellipsis {
    color: var(--text-secondary);
    padding: 0 4px;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-left: 8px;
}

.article-card {
    background: var(--card-background);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.article-cover {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.article-content {
    padding: 16px;
}

.article-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.article-summary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.article-avatar,
.article-avatar-placeholder {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    margin-right: 6px;
}

.article-avatar-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.article-author-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-category {
    background: var(--background-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--primary-color);
    white-space: nowrap;
}

/* 瞬间页面 - 微信朋友圈风格 */
.moments-container {
    max-width: 600px;
    margin: 0 auto;
}

.moment-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.moment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.moment-avatar,
.moment-avatar-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.moment-avatar-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: var(--background-color);
}

.moment-author {
    flex: 1;
    min-width: 0;
}

.moment-nickname {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.moment-time {
    font-size: 0.8rem;
    color: #999;
}

.moment-content {
    margin-bottom: 12px;
}

/* 九宫格图片布局 */
.moment-image-grid {
    display: grid;
    gap: 4px;
    background: var(--background-color);
    border-radius: 8px;
    overflow: hidden;
}

/* 1 张图 - 大图显示 */
.moment-image-grid[data-count="1"] {
    grid-template-columns: 1fr;
    max-width: 280px;
}

/* 2 张图 - 横向排列 */
.moment-image-grid[data-count="2"] {
    grid-template-columns: repeat(2, 1fr);
}

/* 3 张图 - 横向排列 */
.moment-image-grid[data-count="3"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 4 张图 - 2x2 */
.moment-image-grid[data-count="4"] {
    grid-template-columns: repeat(2, 1fr);
}

/* 5 张图 - 第一行 3 张，第二行 2 张左对齐 */
.moment-image-grid[data-count="5"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 6 张图 - 2x3 */
.moment-image-grid[data-count="6"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 7 张图 - 第一行 3 张，第二行 3 张，第三行 1 张 */
.moment-image-grid[data-count="7"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 8 张图 - 3x3 缺右下角 */
.moment-image-grid[data-count="8"] {
    grid-template-columns: repeat(3, 1fr);
}

/* 9 张图 - 完整九宫格 */
.moment-image-grid[data-count="9"] {
    grid-template-columns: repeat(3, 1fr);
}

.moment-grid-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    cursor: pointer;
    transition: opacity 0.2s;
}

.moment-grid-img:hover {
    opacity: 0.9;
}

/* 1 张图时图片更大 */
.moment-image-grid[data-count="1"] .moment-grid-img {
    aspect-ratio: auto;
    max-height: 400px;
    object-fit: contain;
}

/* 5 张图时最后一张隐藏（用 CSS 控制布局） */
.moment-image-grid[data-count="5"] .moment-grid-img:nth-child(n+6) {
    display: none;
}

.moment-image-grid[data-count="5"] .moment-grid-img:nth-child(4),
.moment-image-grid[data-count="5"] .moment-grid-img:nth-child(5) {
    grid-column: span 1;
}

.moment-footer {
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.moment-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 空状态 */
.moments-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.moments-empty .icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

/* 关于页面 */
.about-card {
    background: var(--card-background);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow);
}

.avatar-container {
    width: 100px;
    height: 100px;
    margin: 0 auto 16px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-color);
}

.avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-nickname {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.about-info {
    text-align: left;
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.info-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
}

.about-bio {
    color: #fff;
    font-size: 1rem;
    line-height: 2;
    padding: 20px 24px;
    margin-top: 20px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    background: linear-gradient(135deg,
        rgba(76, 176, 80, 0.6) 0%,
        rgba(33, 150, 243, 0.5) 50%,
        rgba(156, 39, 176, 0.5) 100%);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.15),
        0 2px 8px rgba(76, 176, 80, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.about-bio:hover {
    transform: translateY(-2px);
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.2),
        0 4px 12px rgba(76, 176, 80, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* 退出登录按钮容器 */
.logout-wrapper {
    display: flex;
    justify-content: center;
    margin: 24px 0 32px;
}

.btn-logout-center {
    padding: 10px 24px;
    border: none;
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
    border-radius: 24px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-logout-center:hover {
    background: rgba(244, 67, 54, 0.2);
    color: #d32f2f;
}

/* 友情链接 */
.friend-links-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: left;
}

.friend-links-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-left: 8px;
}

.friend-links-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.friend-link-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    border-radius: 12px;
    text-decoration: none !important;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.friend-link-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    background: linear-gradient(135deg, #e8ecf1 0%, #d0d7e0 100%);
    text-decoration: none !important;
}

a.friend-link-item {
    text-decoration: none !important;
}

a.friend-link-item:hover {
    text-decoration: none !important;
}

.friend-link-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    background: #fff;
}

.friend-link-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow: hidden;
}

.friend-link-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-link-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Emoji 表情页面 */
.emoji-categories {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 8px 0;
    margin-bottom: 16px;
    -webkit-overflow-scrolling: touch;
}

.emoji-category-tab {
    padding: 8px 16px;
    background: var(--card-background);
    border-radius: 20px;
    white-space: nowrap;
    cursor: pointer;
    transition: background 0.2s;
    border: 1px solid var(--border-color);
}

.emoji-category-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.emoji-selector {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
}

.emoji-option {
    font-size: 1.75rem;
    padding: 8px;
    text-align: center;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
}

.emoji-option:hover {
    background: var(--border-color);
}

/* 底部导航 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-background);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none !important;
    color: var(--text-secondary);
    padding: 4px 12px;
    transition: color 0.2s;
}

.nav-item:hover {
    text-decoration: none !important;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-icon {
    font-size: 1.5rem;
    margin-bottom: 2px;
}

.nav-text {
    font-size: 0.75rem;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-background);
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.2rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px;
    line-height: 1;
}

.modal-body {
    padding: 20px;
}

.modal-dialog {
    background: var(--card-background);
    border-radius: 16px;
    max-width: 360px;
    width: 100%;
    max-height: auto;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* 模态框中的表单样式 */
.modal-dialog .form-group {
    margin-bottom: 16px;
}

.modal-dialog .form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.modal-dialog .form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.modal-dialog .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

/* 图片上传组件 */
.modal-dialog .image-upload-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-dialog .upload-btn-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

.modal-dialog .image-preview {
    max-width: 150px;
    max-height: 100px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    object-fit: cover;
}

.modal-dialog .form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.modal-dialog .modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

#error-msg, .error-msg {
    color: var(--danger-color);
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
}

#error-msg {
    display: block;
}

#article-modal-content {
    line-height: 1.8;
    color: var(--text-primary);
}

/* Emoji 模态框 */
.emoji-modal-content {
    max-width: 400px;
}

.emoji-category-tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    padding: 8px 0;
    margin-bottom: 12px;
    -webkit-overflow-scrolling: touch;
}

.emoji-grid-selector {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    max-height: 300px;
    overflow-y: auto;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state .icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 24px;
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}

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

/* 响应式调整 */
@media (min-width: 768px) {
    .main-content {
        max-width: 800px;
        margin: 0 auto;
    }

    .emoji-grid {
        grid-template-columns: repeat(8, 1fr);
    }

    .moments-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 移动端优化（小屏幕） */
@media (max-width: 480px) {
    .header {
        padding: 12px;
    }

    .site-title {
        font-size: 1.25rem;
    }

    .carousel-item {
        height: 160px;
    }

    .category-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .category-item {
        padding: 10px 4px;
        min-width: 60px;
    }

    .category-item .category-emoji {
        font-size: 1.5rem;
    }

    .category-item .category-label {
        font-size: 0.65rem;
    }

    .article-card {
        border-radius: 10px;
    }

    .article-cover {
        height: 140px;
    }

    .article-content {
        padding: 12px;
    }

    .article-title {
        font-size: 1rem;
    }

    .article-summary {
        font-size: 0.85rem;
    }

    .article-meta {
        font-size: 0.75rem;
        flex-wrap: wrap;
        gap: 6px;
    }

    .article-category {
        font-size: 0.7rem;
        padding: 1px 6px;
    }

    .article-avatar,
    .article-avatar-placeholder {
        width: 20px;
        height: 20px;
        margin-right: 4px;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .search-input {
        width: 140px;
        font-size: 0.85rem;
        padding: 6px 10px;
    }

    .search-btn {
        padding: 6px 12px;
        font-size: 0.9rem;
    }

    .bottom-nav {
        padding: 6px 0;
    }

    .nav-item {
        padding: 4px 8px;
    }

    .nav-icon {
        font-size: 1.3rem;
    }

    .nav-text {
        font-size: 0.7rem;
    }

    .moments-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .about-card {
        padding: 24px 16px;
    }

    .avatar-container {
        width: 80px;
        height: 80px;
    }

    .about-nickname {
        font-size: 1.25rem;
    }

    .info-label, .info-value {
        font-size: 0.85rem;
    }

    /* 瞬间横幅签名移动端适配 */
    .moments-signature {
        font-size: 0.85rem;
        bottom: 12px;
        right: 12px;
        left: 12px;
        max-width: calc(100% - 24px);
    }

    .moments-header-banner {
        height: 160px;
        border-radius: 8px;
    }

    /* 用户登录状态移动端适配 */
    .user-login-status {
        padding: 10px 16px;
        gap: 8px;
    }

    .user-nickname-display {
        font-size: 0.9rem;
    }

    .btn-logout {
        font-size: 0.8rem;
        padding: 5px 12px;
    }

    /* 头像登录提示移动端适配 */
    .avatar-login-hint {
        font-size: 0.75rem;
        padding: 4px 10px;
        max-width: 80%;
    }

    .pagination-btn {
        padding: 6px 12px;
        font-size: 0.85rem;
    }

    .pagination-info {
        font-size: 0.8rem;
    }

    /* 横幅移动端适配 */
    .header-banner {
        padding-bottom: 20%; /* 移动端高度 */
    }

    .site-title-on-banner {
        font-size: 1.8rem; /* 移动端字体缩小 */
        letter-spacing: 1px;
    }

    /* 模态框移动端适配 */
    .modal {
        padding: 16px;
    }

    .modal-dialog {
        max-width: calc(100% - 32px);
        margin: 0;
    }

    .modal-dialog .form-group input {
        font-size: 16px; /* 防止 iOS 自动缩放 */
    }

    .modal-dialog .modal-footer {
        padding: 16px;
    }
}

/* 图片加载失败时的占位 */
img[src=""], img:not([src]) {
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
}

/* 链接样式 */
a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: background 0.2s, transform 0.1s;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #d0d0d0;
}

/* Toast 提示 */
.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(244, 67, 54, 0.95);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    max-width: 80%;
    min-width: 80px;
    text-align: center;
    pointer-events: none;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    display: inline-block;
    line-height: 1.2;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.toast.success {
    background: rgba(76, 175, 80, 0.95);
    box-shadow: 0 2px 12px rgba(76, 175, 80, 0.4);
    padding: 4px 12px;
}

.toast.error {
    background: rgba(244, 67, 54, 0.95);
    padding: 4px 12px;
}

.toast.info {
    background: rgba(33, 150, 243, 0.95);
    box-shadow: 0 2px 12px rgba(33, 150, 243, 0.4);
    padding: 4px 12px;
}