/* 
 * 大象传媒 - 主样式表
 * 网站：08122.hk
 * 版本：1.0
 */

/* ========== 基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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: #f8fafc;
}

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

img {
    max-width: 100%;
    height: auto;
}

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

/* ========== 头部导航 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo span {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #14b8a6;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #14b8a6;
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 5px;
}

.search-box input {
    background: transparent;
    border: none;
    color: #fff;
    padding: 8px 15px;
    font-size: 14px;
    width: 200px;
    outline: none;
}

.search-box input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-box button {
    background: #14b8a6;
    color: #fff;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s ease;
}

.search-box button:hover {
    background: #0d9488;
}

/* ========== Hero区域 ========== */
.hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-size: cover;
    background-position: center;
    padding: 120px 20px 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 20px;
    color: #14b8a6;
    margin-bottom: 15px;
}

.hero-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ========== 页面Hero ========== */
.page-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 140px 20px 60px;
    text-align: center;
    background-size: cover;
    background-position: center;
}

.page-hero h1 {
    font-size: 36px;
    color: #fff;
    margin-bottom: 15px;
}

.page-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: #fff;
    padding: 15px 0;
    border-bottom: 1px solid #e2e8f0;
}

.breadcrumb a {
    color: #14b8a6;
}

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

.breadcrumb span {
    color: #64748b;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(20, 184, 166, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: #fff;
    color: #0f172a;
}

.btn-outline {
    background: transparent;
    color: #14b8a6;
    border: 2px solid #14b8a6;
}

.btn-outline:hover {
    background: #14b8a6;
    color: #fff;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 15px 40px;
    font-size: 18px;
}

/* ========== 通用区块 ========== */
.section {
    padding: 80px 0;
}

.section h2 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 15px;
    color: #0f172a;
}

.section-desc {
    text-align: center;
    color: #64748b;
    font-size: 16px;
    margin-bottom: 50px;
}

.section-more {
    text-align: center;
    margin-top: 40px;
}

.bg-dark {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.bg-dark h2,
.bg-dark p,
.bg-dark .section-desc {
    color: #fff;
}

.bg-gradient {
    background: linear-gradient(135deg, #f0fdfa 0%, #ecfeff 100%);
}

/* ========== 视频卡片 ========== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.video-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

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

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(20, 184, 166, 0.9);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.play-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border-left: 20px solid #fff;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
}

.video-card:hover .play-btn {
    opacity: 1;
}

.duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 16px;
    color: #0f172a;
    margin-bottom: 10px;
    line-height: 1.4;
}

.video-desc {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 10px;
}

.video-stats {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: #94a3b8;
}

.video-tags {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.video-tags span {
    background: #f0fdfa;
    color: #14b8a6;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
}

/* ========== 服务卡片 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

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

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin-bottom: 15px;
}

.service-card p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 服务详情 ========== */
.services-detail {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-detail-card {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.service-icon-lg {
    font-size: 60px;
    margin-bottom: 20px;
}

.service-detail-card h3 {
    font-size: 24px;
    color: #0f172a;
    margin-bottom: 15px;
}

.service-detail-card p {
    color: #64748b;
    margin-bottom: 15px;
    line-height: 1.7;
}

.service-detail-card ul {
    list-style: none;
    padding-left: 0;
}

.service-detail-card li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #475569;
}

.service-detail-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #14b8a6;
    font-weight: bold;
}

/* ========== AI区域 ========== */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.ai-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 30px;
    border-radius: 12px;
    color: #fff;
}

.ai-card h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #14b8a6;
}

.ai-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

/* ========== 专家团队 ========== */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expert-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.expert-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.expert-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin: 20px 0 5px;
}

.expert-title {
    color: #14b8a6;
    font-size: 14px;
    margin-bottom: 15px;
}

.expert-desc {
    padding: 0 20px;
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
}

.expert-awards {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 15px 0;
}

.expert-awards span {
    background: #fef3c7;
    color: #d97706;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
}

.expert-actions {
    padding: 20px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* ========== 用户评价 ========== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.review-stars {
    color: #fbbf24;
    font-size: 20px;
    margin-bottom: 15px;
}

.review-text {
    color: #475569;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.review-author {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: #0f172a;
}

.author-title {
    font-size: 13px;
    color: #94a3b8;
}

/* ========== 加入社区 ========== */
.join-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.join-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.step-num {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.step h4 {
    font-size: 18px;
    color: #0f172a;
    margin-bottom: 5px;
}

.step p {
    color: #64748b;
    font-size: 14px;
}

.join-faq h3 {
    font-size: 24px;
    color: #0f172a;
    margin-bottom: 25px;
}

.faq-item {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-item h4 {
    font-size: 16px;
    color: #0f172a;
    margin-bottom: 10px;
}

.faq-item p {
    color: #64748b;
    font-size: 14px;
}

/* ========== 流程时间线 ========== */
.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    padding: 40px 0;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 70px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: rgba(255, 255, 255, 0.2);
}

.process-step {
    text-align: center;
    flex: 1;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #14b8a6;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
    position: relative;
    z-index: 1;
}

.process-step h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 10px;
}

.process-step p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    padding: 0 20px;
}

/* ========== 合作伙伴 ========== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.partner-logo {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    color: #94a3b8;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* ========== CTA区域 ========== */
.cta-section {
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    text-align: center;
    padding: 80px 20px;
}

.cta-section h2 {
    color: #fff;
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-section .btn-primary {
    background: #fff;
    color: #14b8a6;
}

.cta-section .btn-outline {
    border-color: #fff;
    color: #fff;
}

.cta-section .btn-outline:hover {
    background: #fff;
    color: #14b8a6;
}

/* ========== 分类标签 ========== */
.category-tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 25px;
    background: #fff;
    border: 2px solid #e2e8f0;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    color: #64748b;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: #14b8a6;
    border-color: #14b8a6;
    color: #fff;
}

/* ========== 分页 ========== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.page-btn {
    padding: 10px 18px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    color: #64748b;
    transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
    background: #14b8a6;
    border-color: #14b8a6;
    color: #fff;
}

/* ========== 社区功能 ========== */
.community-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.feature-card {
    background: #fff;
    padding: 35px 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin-bottom: 15px;
}

.feature-card p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 娱乐专区 ========== */
.entertainment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.entertainment-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
}

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

.entertainment-info {
    padding: 20px;
}

.entertainment-info h3 {
    font-size: 18px;
    color: #0f172a;
    margin-bottom: 8px;
}

.entertainment-info p {
    color: #64748b;
    font-size: 14px;
}

.entertainment-info .tag {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #14b8a6;
    color: #fff;
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 12px;
}

/* ========== 图库 ========== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 1;
}

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

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

/* ========== 话题列表 ========== */
.topics-list {
    max-width: 800px;
    margin: 0 auto;
}

.topic-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 15px;
}

.topic-tag {
    background: #14b8a6;
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    display: inline-block;
    margin-bottom: 10px;
}

.topic-item h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 10px;
}

.topic-stats {
    display: flex;
    gap: 20px;
}

.topic-stats span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* ========== 工具卡片 ========== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.tool-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.tool-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.tool-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin-bottom: 15px;
}

.tool-card p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 15px;
}

.tool-features {
    list-style: none;
    margin-bottom: 20px;
}

.tool-features li {
    padding: 6px 0;
    color: #475569;
    font-size: 14px;
    padding-left: 20px;
    position: relative;
}

.tool-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #14b8a6;
}

/* ========== AI工具 ========== */
.ai-tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.ai-tool-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.ai-tool-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin-bottom: 15px;
}

.ai-tool-card p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.tool-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.tool-stats span {
    font-size: 13px;
    color: #94a3b8;
}

/* ========== 资源卡片 ========== */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.resource-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.resource-card h3 {
    font-size: 18px;
    color: #0f172a;
    margin-bottom: 10px;
}

.resource-card p {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 15px;
}

.resource-tag {
    display: inline-block;
    background: #dcfce7;
    color: #16a34a;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 15px;
}

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand img {
    height: 50px;
    margin-bottom: 15px;
}

.footer-brand h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: #14b8a6;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #14b8a6;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    padding: 5px 0;
}

.footer-qr {
    display: flex;
    gap: 20px;
}

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

.qr-item img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.qr-item span {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-social {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 30px;
}

.footer-social h4 {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-link {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    color: #fff;
    font-size: 14px;
    transition: background 0.3s ease;
}

.social-link:hover {
    background: #14b8a6;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .video-grid,
    .services-grid,
    .experts-grid,
    .reviews-grid,
    .entertainment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-grid,
    .community-features,
    .tools-grid,
    .ai-tools-grid,
    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-detail {
        grid-template-columns: 1fr;
    }
    
    .process-timeline {
        flex-wrap: wrap;
    }
    
    .process-step {
        flex: 0 0 33.33%;
        margin-bottom: 30px;
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .search-box {
        display: none;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .video-grid,
    .services-grid,
    .experts-grid,
    .reviews-grid,
    .entertainment-grid,
    .ai-grid,
    .community-features,
    .tools-grid,
    .ai-tools-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .join-content {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex: 0 0 100%;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-qr {
        justify-content: center;
    }
    
    .section h2 {
        font-size: 26px;
    }
    
    .page-hero h1 {
        font-size: 28px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-tabs {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .logo span {
        display: none;
    }
    
    .hero {
        min-height: 500px;
        padding: 100px 15px 60px;
    }
    
    .hero h1 {
        font-size: 26px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .container {
        padding: 0 15px;
    }
}