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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

a:hover {
    color: #e85d75;
}

.container-wrapper-fluid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-header-main {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navigation-bar-primary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.logo-brand-home a {
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.menu-list-horizontal {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.menu-list-horizontal a {
    color: #fff;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.menu-list-horizontal a:hover,
.menu-list-horizontal a.active-link {
    background: rgba(255,255,255,0.2);
}

.search-box-wrapper {
    display: flex;
    gap: 0.5rem;
}

.search-input-field {
    padding: 0.6rem 1rem;
    border: none;
    border-radius: 25px;
    width: 250px;
    outline: none;
}

.search-btn-submit {
    padding: 0.6rem 1.5rem;
    background: #e85d75;
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
}

.search-btn-submit:hover {
    background: #d64766;
}

.hero-banner-section {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 3rem;
}

.banner-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.banner-content-overlay {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
}

.banner-title-main {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
}

.banner-subtitle-text {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.cta-button-primary {
    padding: 1rem 3rem;
    background: linear-gradient(135deg, #e85d75 0%, #f093fb 100%);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(232,93,117,0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(232,93,117,0.5);
}

.featured-section-grid,
.category-section-list,
.trending-topic-section,
.community-stats-section {
    padding: 4rem 0;
}

.section-heading-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #2c3e50;
}

.video-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.video-card-item {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.video-card-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.video-thumbnail-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.video-info-wrapper {
    padding: 1.5rem;
}

.video-title-text {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.video-meta-info {
    display: flex;
    justify-content: space-between;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.category-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.category-card-box {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.category-card-box:hover {
    transform: translateY(-5px);
}

.category-icon-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.category-name-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.category-desc-text {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

.video-count-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.topic-list-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.topic-item-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.topic-item-card:hover {
    transform: translateX(5px);
}

.topic-rank-number {
    font-size: 2rem;
    font-weight: bold;
    color: #e85d75;
}

.topic-content-box {
    flex: 1;
}

.topic-title-main {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.topic-stats-info {
    color: #7f8c8d;
}

.topic-thumb-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 10px;
}

.stats-grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-box-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    border-radius: 15px;
    color: #fff;
}

.stat-number-large {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label-text {
    font-size: 1.2rem;
}

.site-footer-main {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-heading-text {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-desc-paragraph {
    line-height: 1.8;
}

.footer-link-list {
    list-style: none;
}

.footer-link-list li {
    margin-bottom: 0.5rem;
}

.footer-link-list a:hover {
    color: #e85d75;
}

.footer-contact-info {
    margin-bottom: 0.5rem;
}

.footer-bottom-bar {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
}

.copyright-text-info {
    color: #95a5a6;
}

.page-forum-community .forum-hero-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 4rem 0;
    text-align: center;
    color: #fff;
    margin-bottom: 3rem;
}

.forum-main-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.forum-subtitle-desc {
    font-size: 1.3rem;
}

.forum-layout-grid {
    display: grid;
    grid-template-columns: 250px 1fr 300px;
    gap: 2rem;
    margin-bottom: 3rem;
}

.forum-sidebar-left,
.forum-sidebar-right {
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    height: fit-content;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sidebar-widget-box {
    margin-bottom: 2rem;
}

.widget-title-heading {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.category-nav-list {
    list-style: none;
}

.category-nav-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.category-nav-item:hover,
.category-nav-item.active-category {
    background: #f0f0f0;
}

.post-count-badge {
    background: #e85d75;
    color: #fff;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
}

.tag-cloud-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-item-link {
    background: #f0f0f0;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: background 0.3s ease;
}

.tag-item-link:hover {
    background: #e85d75;
    color: #fff;
}

.forum-content-main {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.forum-toolbar-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.btn-create-post {
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #e85d75 0%, #f093fb 100%);
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.3s ease;
}

.btn-create-post:hover {
    transform: translateY(-2px);
}

.sort-filter-group {
    display: flex;
    gap: 1rem;
}

.sort-btn-item {
    padding: 0.6rem 1.5rem;
    background: #f0f0f0;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.sort-btn-item:hover,
.sort-btn-item.active-sort {
    background: #667eea;
    color: #fff;
}

.post-list-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.post-item-card {
    display: grid;
    grid-template-columns: 50px 1fr 150px;
    gap: 1.5rem;
    padding: 1.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    transition: box-shadow 0.3s ease;
}

.post-item-card:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

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

.post-content-wrapper {
    flex: 1;
}

.post-title-link a {
    font-size: 1.2rem;
    color: #2c3e50;
    font-weight: 600;
}

.post-title-link a:hover {
    color: #e85d75;
}

.post-excerpt-text {
    color: #7f8c8d;
    margin: 0.5rem 0;
    line-height: 1.6;
}

.post-meta-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #95a5a6;
}

.post-stats-info {
    display: flex;
    gap: 1rem;
}

.post-tags-wrapper {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.post-tag-label {
    background: #f0f0f0;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.post-thumbnail-img {
    width: 150px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

.pagination-wrapper {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.page-btn-item {
    padding: 0.6rem 1rem;
    background: #f0f0f0;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.page-btn-item:hover,
.page-btn-item.active-page {
    background: #667eea;
    color: #fff;
}

.announcement-list-items {
    list-style: none;
}

.announcement-item {
    padding: 0.8rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.announcement-item a {
    display: block;
    margin-bottom: 0.3rem;
}

.date-text-small {
    font-size: 0.8rem;
    color: #95a5a6;
}

.active-user-list {
    list-style: none;
}

.user-item-row {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.user-mini-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name-text {
    flex: 1;
}

.user-level-badge {
    background: #667eea;
    color: #fff;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.8rem;
}

.page-topic-trending .topic-hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 5rem 0;
    text-align: center;
    color: #fff;
    margin-bottom: 3rem;
}

.topic-page-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.topic-page-subtitle {
    font-size: 1.5rem;
}

.topic-filter-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn-tab {
    padding: 0.8rem 2rem;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn-tab:hover,
.filter-btn-tab.active-filter {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

.featured-topic-section {
    margin-bottom: 4rem;
}

.featured-topic-card {
    position: relative;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
}

.topic-cover-large {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.topic-info-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    padding: 2rem;
    text-align: center;
}

.topic-badge-hot {
    background: #e85d75;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.topic-name-large {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.topic-description-text {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.topic-stats-row {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.btn-join-topic {
    padding: 1rem 3rem;
    background: #fff;
    color: #667eea;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.btn-join-topic:hover {
    transform: scale(1.05);
}

.topic-list-vertical {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.topic-card-horizontal {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.rank-number-badge {
    font-size: 2.5rem;
    font-weight: bold;
    color: #95a5a6;
    min-width: 50px;
}

.rank-number-badge.rank-first {
    color: #f39c12;
}

.rank-number-badge.rank-second {
    color: #95a5a6;
}

.rank-number-badge.rank-third {
    color: #cd7f32;
}

.topic-thumbnail-small {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
}

.topic-content-block {
    flex: 1;
}

.topic-title-medium {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.topic-intro-text {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

.topic-meta-line {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: #95a5a6;
}

.trending-up {
    color: #27ae60;
    font-weight: 600;
}

.topic-tags-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.mini-tag {
    background: #f0f0f0;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.btn-follow-topic {
    padding: 0.6rem 1.5rem;
    background: #667eea;
    color: #fff;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
}

.btn-follow-topic:hover {
    background: #5568d3;
}

.category-tabs-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-tab-btn {
    padding: 0.8rem 2rem;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-tab-btn:hover,
.category-tab-btn.active-tab {
    background: #e85d75;
    color: #fff;
    border-color: #e85d75;
}

.category-topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-topic-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
}

.category-topic-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.category-topic-item:hover .category-topic-img {
    transform: scale(1.1);
}

.category-topic-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    padding: 1.5rem;
}

.category-topic-title {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.category-topic-desc {
    font-size: 0.9rem;
}

.challenge-card-main {
    position: relative;
    height: 300px;
    border-radius: 20px;
    overflow: hidden;
    margin-top: 2rem;
}

.challenge-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.challenge-content-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
}

.challenge-badge-new {
    background: #e85d75;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.challenge-title-big {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.challenge-description {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.challenge-info-row {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.btn-participate-now {
    padding: 1rem 3rem;
    background: #fff;
    color: #667eea;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
}

.recommended-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.recommended-topic-box {
    position: relative;
    height: 200px;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
}

.recommended-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.recommended-topic-box:hover .recommended-img {
    transform: scale(1.1);
}

.recommended-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    padding: 1.5rem;
}

.recommended-title {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.recommended-stats {
    font-size: 0.9rem;
}

.page-user-profile .profile-header-section {
    margin-bottom: 3rem;
}

.profile-cover-area {
    position: relative;
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: -80px;
}

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

.btn-edit-cover {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.6rem 1.5rem;
    background: rgba(255,255,255,0.9);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
}

.profile-info-card {
    position: relative;
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 2rem;
}

.profile-avatar-large {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.profile-basic-info {
    flex: 1;
}

.profile-username-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.profile-bio-text {
    color: #7f8c8d;
    margin-bottom: 1.5rem;
}

.profile-stats-row {
    display: flex;
    gap: 3rem;
}

.stat-item-box {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    color: #667eea;
}

.stat-label {
    color: #7f8c8d;
}

.btn-edit-profile {
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
}

.user-dashboard-layout {
    display: grid;
    grid-template-columns: 250px 1fr 300px;
    gap: 2rem;
}

.dashboard-sidebar-menu {
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    height: fit-content;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.sidebar-nav-list {
    list-style: none;
}

.nav-item-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.3s ease;
    margin-bottom: 0.5rem;
}

.nav-item-link:hover,
.nav-item-link.active-nav {
    background: #f0f0f0;
}

.nav-icon {
    font-size: 1.5rem;
}

.dashboard-content-main {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.dashboard-section-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.data-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.data-card-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1.5rem;
    border-radius: 15px;
    color: #fff;
}

.data-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.data-icon {
    font-size: 1.5rem;
}

.data-card-title {
    font-size: 1rem;
}

.data-number-large {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.data-trend-text {
    font-size: 0.9rem;
}

.data-trend-text.trend-up {
    color: #a8f5c5;
}

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

.link-view-all {
    color: #667eea;
    font-weight: 500;
}

.video-list-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.user-video-card {
    display: flex;
    gap: 1.5rem;
    padding: 1rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
}

.user-video-thumb {
    width: 200px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

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

.user-video-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.user-video-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.user-video-date {
    color: #95a5a6;
    font-size: 0.9rem;
}

.video-actions-menu {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-action-icon {
    background: #f0f0f0;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background 0.3s ease;
}

.btn-action-icon:hover {
    background: #e0e0e0;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.achievement-badge-item {
    text-align: center;
    padding: 1rem;
    border-radius: 10px;
    background: #f8f9fa;
}

.achievement-badge-item.locked-badge {
    opacity: 0.5;
}

.badge-icon-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 0.5rem;
}

.badge-name-text {
    font-size: 0.9rem;
    color: #2c3e50;
}

.notification-list-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.notification-item-row {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 10px;
}

.notification-icon {
    font-size: 1.5rem;
}

.notification-content {
    flex: 1;
}

.notification-text {
    color: #2c3e50;
    margin-bottom: 0.3rem;
}

.notification-time {
    font-size: 0.8rem;
    color: #95a5a6;
}

.dashboard-sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-widget-panel {
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.widget-panel-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.widget-action-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    width: 100%;
    padding: 1rem;
    background: #f8f9fa;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    margin-bottom: 0.8rem;
    transition: background 0.3s ease;
}

.widget-action-btn:hover {
    background: #e9ecef;
}

.widget-action-btn.primary-action {
    background: linear-gradient(135deg, #e85d75 0%, #f093fb 100%);
    color: #fff;
}

.quick-links-list {
    list-style: none;
}

.quick-links-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.quick-links-list a {
    color: #7f8c8d;
}

.quick-links-list a:hover {
    color: #667eea;
}

.page-about-company .about-hero-section {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4rem;
    overflow: hidden;
}

.about-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5);
}

.about-hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
}

.about-main-heading {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.3);
}

.about-main-subtitle {
    font-size: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.mission-vision-section {
    padding: 4rem 0;
}

.mission-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.mission-description-text {
    line-height: 1.8;
    color: #555;
    margin-bottom: 1.5rem;
}

.mission-feature-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.section-title-large {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

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

.values-section-display {
    padding: 4rem 0;
    background: #f8f9fa;
}

.values-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-card-item {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.value-icon-wrapper {
    margin-bottom: 1.5rem;
}

.value-icon-img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
}

.value-title-text {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.value-desc-text {
    color: #7f8c8d;
    line-height: 1.6;
}

.timeline-history-section {
    padding: 4rem 0;
}

.timeline-container-vertical {
    position: relative;
    max-width: 800px;
    margin: 2rem auto;
    padding-left: 50px;
}

.timeline-container-vertical::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e0e0e0;
}

.timeline-item-block {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-date-marker {
    position: absolute;
    left: -50px;
    top: 0;
    width: 80px;
    background: #667eea;
    color: #fff;
    padding: 0.5rem;
    border-radius: 20px;
    text-align: center;
    font-weight: 600;
}

.timeline-content-box {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.timeline-event-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.timeline-event-desc {
    color: #7f8c8d;
    line-height: 1.6;
}

.team-members-section {
    padding: 4rem 0;
    background: #f8f9fa;
}

.team-intro-subtitle {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 3rem;
}

.team-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.member-avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
}

.member-name-text {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.member-role-text {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.member-desc-text {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.community-stats-showcase {
    padding: 4rem 0;
}

.stats-display-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-showcase-item {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    color: #fff;
}

.stat-number-huge {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stat-label-large {
    font-size: 1.2rem;
}

.contact-join-section {
    padding: 4rem 0;
    background: #f8f9fa;
}

.contact-grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info-block,
.join-us-block {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-item-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    font-size: 2rem;
}

.contact-text-content {
    flex: 1;
}

.contact-label {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: #2c3e50;
}

.contact-value {
    color: #7f8c8d;
}

.join-description-text {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.join-us-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

.btn-join-team {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
}

.partners-section-display {
    padding: 4rem 0;
}

.partners-logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.partner-logo-item {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-logo-img {
    width: 150px;
    height: 80px;
    object-fit: contain;
}

@media (max-width: 768px) {
    .navigation-bar-primary {
        flex-direction: column;
    }

    .menu-list-horizontal {
        flex-wrap: wrap;
        justify-content: center;
    }

    .forum-layout-grid,
    .user-dashboard-layout {
        grid-template-columns: 1fr;
    }

    .mission-content-grid,
    .contact-grid-layout {
        grid-template-columns: 1fr;
    }

    .post-item-card {
        grid-template-columns: 1fr;
    }

    .banner-title-main,
    .topic-page-title {
        font-size: 2rem;
    }
}