/* Loading Page Styles */
.loading-page {
    background-color: #1a1d21;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.loading-container {
    text-align: center;
    max-width: 400px;
    padding: 2rem;
}

.loading-logo {
    margin-bottom: 2rem;
}

.loading-logo img {
    width: 120px;
    height: auto;
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.loading-icon {
    font-size: 3rem;
    color: #2b90d9;
    animation: bounce 2s infinite;
}

.loading-content h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.loading-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.loading-progress {
    position: relative;
    width: 40px;
    height: 40px;
}

.progress-ring {
    width: 100%;
    height: 100%;
    border: 3px solid rgba(43, 144, 217, 0.2);
    border-radius: 50%;
    position: relative;
}

.progress-circle {
    position: absolute;
    top: -3px;
    left: -3px;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: #2b90d9;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

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

/* Community Main Page Styles */
.community-container {
    display: flex;
    min-height: calc(100vh - 60px);
    background-color: #0d1219;
    margin-top: 70px;
    padding-top: 10px;
}

.sidebar {
    width: 280px;
    background-color: #1b2838;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0;
    color: #8f98a0;
    position: sticky;
    top: 70px;
    height: calc(100vh - 70px);
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: 0;
}

.sidebar-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: #8f98a0;
    padding: 1.2rem 1.5rem;
    background-color: #1b2838;
    margin: 0;
    font-weight: 600;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.topic-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.5rem;
    border-left: 3px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.topic-item:hover {
    background-color: #273d54;
    border-left-color: #66c0f4;
}

.topic-item.active {
    background-color: #273d54;
    border-left-color: #66c0f4;
}

.topic-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.topic-name {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 500;
}

.main-content {
    flex: 1;
    padding: 2rem;
    color: #acb2b8;
    background-color: #0d1219;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.content-title {
    font-size: 1.6rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.new-discussion-btn {
    background-color: #66c0f4;
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 3px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.new-discussion-btn:hover {
    background-color: #4b8bb3;
}

.discussion-list {
    display: flex;
    flex-direction: column;
}

.discussion-card {
    background-color: #1b2838;
    border-left: 3px solid transparent;
    padding: 1.2rem 1.5rem;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.discussion-card:hover {
    background-color: #273d54;
    border-left-color: #66c0f4;
    transform: none;
}

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

.discussion-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    overflow: hidden;
}

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

.discussion-info {
    flex: 1;
}

.discussion-title {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: #acb2b8;
}

.discussion-details {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #8f98a0;
    font-size: 0.85rem;
}

.discussion-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: 2rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.featured-tag {
    background-color: rgba(102, 192, 244, 0.15);
    color: #66c0f4;
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 添加排序和视图切换按钮样式 */
.view-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.view-mode-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #8f98a0;
    padding: 0.4rem 0.8rem;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.view-mode-btn:hover {
    background-color: #273d54;
}

.view-mode-btn.active {
    background-color: rgba(102, 192, 244, 0.1);
    border-color: #66c0f4;
    color: #66c0f4;
}

.discussion-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.discussion-card {
    background-color: #1b2838;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.discussion-card:hover {
    background-color: #273d54;
    border-left-color: #66c0f4;
}

.discussion-header {
    padding: 1.2rem 1.5rem;
}