/* 现代化论坛样式 */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 基础重置 */
.bbs-body-modern {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
}

.bbs-container {
    max-width: 100%;
    margin: 0 auto;
    background: var(--surface-color);
    min-height: 100vh;
}

/* 头部样式 */
.bbs-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.bbs-header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bbs-logo h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
}

/* 用户操作区域 */
.bbs-user-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bbs-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bbs-user-greeting {
    font-size: 0.9rem;
    opacity: 0.9;
}

.bbs-user-stats-mini {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    opacity: 0.8;
}

.bbs-user-dropdown {
    position: relative;
}

.bbs-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.bbs-user-avatar:hover {
    background: rgba(255, 255, 255, 0.3);
}

.bbs-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.bbs-user-dropdown:hover .bbs-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.bbs-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition);
}

.bbs-dropdown-item:hover {
    background: var(--background-color);
}

.bbs-auth-buttons {
    display: flex;
    gap: 0.75rem;
}

/* 按钮样式 */
.bbs-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    justify-content: center;
}

.bbs-btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.bbs-btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.bbs-btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.bbs-btn-light {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
}

.bbs-btn-light:hover {
    background: white;
    transform: translateY(-1px);
}

.bbs-btn-secondary {
    background: #6b7280;
    color: white;
}

.bbs-btn-secondary:hover {
    background: #4b5563;
}

.bbs-btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.bbs-btn-block {
    width: 100%;
    display: block;
}

/* 主布局 */
.bbs-main-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.bbs-main-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* 幻灯片样式 */
.bbs-slider {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 1rem;
}

.bbs-slider-container {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.bbs-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.bbs-slide.active {
    opacity: 1;
}

.bbs-slide-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
}

.bbs-slide-content {
    position: relative;
    z-index: 2;
    color: white;
    padding: 3rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 600px;
}

.bbs-slide-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    line-height: 1.2;
}

.bbs-slide-content p {
    font-size: 1.2rem;
    margin: 0 0 2rem 0;
    opacity: 0.9;
}

.bbs-slider-controls {
    position: absolute;
    bottom: 2rem;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 3;
}

.bbs-slider-prev,
.bbs-slider-next {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.bbs-slider-prev:hover,
.bbs-slider-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

.bbs-slider-dots {
    display: flex;
    gap: 0.5rem;
}

.bbs-slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.bbs-slider-dot.active {
    background: white;
    transform: scale(1.2);
}

/* 欢迎区域 */
.bbs-welcome-section {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.bbs-welcome-section h2 {
    font-size: 2.5rem;
    margin: 0 0 1rem 0;
    font-weight: 700;
}

.bbs-welcome-section p {
    font-size: 1.2rem;
    margin: 0;
    opacity: 0.9;
}

/* 版块网格 */
.bbs-forums-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.bbs-forum-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bbs-forum-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.bbs-forum-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.bbs-forum-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.bbs-forum-info {
    flex: 1;
}

.bbs-forum-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
}

.bbs-forum-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.bbs-forum-title a:hover {
    color: var(--primary-color);
}

.bbs-forum-desc {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.bbs-forum-stats {
    display: flex;
    gap: 1.5rem;
}

.bbs-stat {
    text-align: center;
}

.bbs-stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.bbs-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bbs-forum-last {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.bbs-last-topic {
    font-size: 0.9rem;
}

.bbs-last-title {
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.bbs-last-title:hover {
    color: var(--primary-color);
}

.bbs-last-time {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* 帖子列表 */
.bbs-topics-list {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.bbs-topics-header {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.bbs-topic-item {
    display: grid;
    grid-template-columns: auto 1fr auto auto auto;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: var(--transition);
}

.bbs-topic-item:hover {
    background: var(--background-color);
}

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

.bbs-topic-sticky {
    background: #fffbf0;
    border-left: 4px solid var(--accent-color);
}

.bbs-topic-icon {
    font-size: 1.2rem;
}

.bbs-icon-sticky {
    color: var(--accent-color);
}

.bbs-icon-hot {
    color: #ef4444;
}

.bbs-topic-title {
    margin: 0;
}

.bbs-topic-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.bbs-topic-title a:hover {
    color: var(--primary-color);
}

.bbs-reply-count {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

.bbs-topic-author,
.bbs-topic-stats,
.bbs-topic-last {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

/* 最新帖子区域 */
.bbs-recent-section {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.bbs-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.bbs-section-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.bbs-view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.bbs-view-all:hover {
    color: var(--primary-dark);
}

.bbs-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.bbs-topic-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.bbs-topic-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.bbs-topic-main {
    flex: 1;
}

.bbs-topic-title {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    line-height: 1.4;
}

.bbs-topic-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.bbs-topic-title a:hover {
    color: var(--primary-color);
}

.bbs-topic-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.bbs-topic-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 侧边栏样式 */
.bbs-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.bbs-sidebar-content {
    position: sticky;
    top: 6rem;
}

.bbs-sidebar-panel {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.bbs-panel-title {
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
}

/* 用户面板 */
.bbs-user-panel {
    text-align: center;
}

.bbs-user-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.bbs-user-details h4 {
    margin: 0 0 0.25rem 0;
    font-size: 1.2rem;
}

.bbs-user-details p {
    margin: 0;
    color: var(--text-muted);
    text-transform: capitalize;
}

.bbs-user-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.bbs-user-stat {
    text-align: center;
}

.bbs-stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.bbs-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.bbs-guest-panel {
    text-align: center;
}

.bbs-guest-panel p {
    margin: 0 0 1rem 0;
    color: var(--text-secondary);
}

.bbs-auth-buttons-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 统计面板 */
.bbs-stats-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bbs-stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.bbs-stat-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.bbs-stat-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.bbs-stat-info {
    flex: 1;
}

.bbs-stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.bbs-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 版块统计 */
.bbs-forum-stats-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bbs-forum-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
}

.bbs-forum-stat .bbs-stat-label {
    color: var(--text-secondary);
}

.bbs-forum-stat .bbs-stat-value {
    font-size: 1.1rem;
    color: var(--primary-color);
}

/* 帖子操作 */
.bbs-topic-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 热门帖子面板 */
.bbs-hot-topics {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.bbs-hot-topic {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.bbs-hot-topic:hover {
    background: var(--surface-color);
    transform: translateX(5px);
}

.bbs-hot-topic-title {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    flex: 1;
    transition: var(--transition);
}

.bbs-hot-topic-title:hover {
    color: var(--primary-color);
}

.bbs-hot-topic-stats {
    display: flex;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 快速链接面板 */
.bbs-quick-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bbs-quick-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--background-color);
}

.bbs-quick-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

.bbs-link-icon {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

/* 帖子内容 */
.bbs-topic-content {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.bbs-post, .bbs-reply {
    margin-bottom: 2rem;
}

.bbs-post:last-child, .bbs-reply:last-child {
    margin-bottom: 0;
}

.bbs-post-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.bbs-user-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.bbs-user-avatar:not(:has(img)) {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
}

.bbs-user-info {
    flex: 1;
}

.bbs-username {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.bbs-post-time {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.bbs-post-content {
    line-height: 1.7;
    color: var(--text-primary);
}

.bbs-post-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.bbs-post-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
}

.bbs-post-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.bbs-post-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* 回复区域 */
.bbs-replies {
    margin-top: 2rem;
}

.bbs-replies-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.bbs-reply {
    padding: 1.5rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.bbs-reply:last-child {
    margin-bottom: 0;
}

/* 回复表单 */
.bbs-reply-form {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-top: 2rem;
}

.bbs-reply-form h3 {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

/* 登录提示 */
.bbs-login-prompt {
    text-align: center;
    padding: 2rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.bbs-login-prompt p {
    margin: 0;
    color: var(--text-secondary);
}

.bbs-login-prompt a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.bbs-login-prompt a:hover {
    text-decoration: underline;
}

/* 表单样式 */
.bbs-post-form {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.bbs-form-group {
    margin-bottom: 1.5rem;
}

.bbs-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bbs-form-group select,
.bbs-form-group input,
.bbs-form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--surface-color);
    color: var(--text-primary);
}

.bbs-form-group select:focus,
.bbs-form-group input:focus,
.bbs-form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.bbs-form-group textarea {
    resize: vertical;
    min-height: 200px;
    font-family: inherit;
}

.bbs-form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    margin-top: 2rem;
}

/* 面包屑导航 */
.bbs-breadcrumb {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

.bbs-breadcrumb a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.bbs-breadcrumb a:hover {
    text-decoration: underline;
}

/* 版块描述 */
.bbs-forum-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin: 0.5rem 0 1rem 0;
}

/* 帖子元信息 */
.bbs-topic-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 0.5rem;
}

/* 分页 */
.bbs-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.bbs-page-prev,
.bbs-page-next,
.bbs-page-link {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.bbs-page-prev:hover,
.bbs-page-next:hover,
.bbs-page-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.bbs-page-current {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
}

/* 空状态 */
.bbs-empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.bbs-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.bbs-empty-state h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.bbs-empty-state p {
    margin: 0 0 2rem 0;
    font-size: 1rem;
}

/* 图片模态框 */
.bbs-image-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
}

.bbs-modal-content {
    display: block;
    margin: auto;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.bbs-modal-close {
    position: absolute;
    top: 1rem;
    right: 2rem;
    color: white;
    font-size: 3rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
}

.bbs-modal-close:hover {
    color: #ccc;
}

/* 页脚 */
.bbs-footer {
    background: var(--text-primary);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.bbs-footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bbs-footer-links {
    display: flex;
    gap: 1.5rem;
}

.bbs-footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.bbs-footer-links a:hover {
    color: white;
}

/* 论坛入口链接 */
.bbs-forum-link {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.bbs-forum-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.bbs-forum-link a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .bbs-main-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .bbs-sidebar-content {
        position: static;
    }
    
    .bbs-forums-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .bbs-header-content {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .bbs-main-layout {
        padding: 1rem;
    }
    
    .bbs-slider-container {
        height: 300px;
    }
    
    .bbs-slide-content {
        padding: 2rem;
    }
    
    .bbs-slide-content h3 {
        font-size: 2rem;
    }
    
    .bbs-welcome-section {
        padding: 2rem 1rem;
    }
    
    .bbs-welcome-section h2 {
        font-size: 2rem;
    }
    
    .bbs-forums-grid {
        grid-template-columns: 1fr;
    }
    
    .bbs-topics-grid {
        grid-template-columns: 1fr;
    }
    
    .bbs-topics-header {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .bbs-topic-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .bbs-footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .bbs-user-greeting,
    .bbs-user-stats-mini {
        display: none;
    }
    
    .bbs-form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .bbs-header-content {
        padding: 0 0.5rem;
    }
    
    .bbs-main-layout {
        padding: 0.5rem;
    }
    
    .bbs-slider-container {
        height: 250px;
    }
    
    .bbs-slide-content {
        padding: 1rem;
    }
    
    .bbs-slide-content h3 {
        font-size: 1.5rem;
    }
    
    .bbs-welcome-section {
        padding: 1.5rem 0.5rem;
    }
    
    .bbs-welcome-section h2 {
        font-size: 1.5rem;
    }
    
    .bbs-forum-card,
    .bbs-sidebar-panel,
    .bbs-topic-content,
    .bbs-reply-form,
    .bbs-post-form {
        padding: 1rem;
    }
}