/* 糖心vlog - 全新原创样式表 v3 */
/* 深色霓虹主题设计 */

:root {
    --primary-color: #8B5CF6;
    --secondary-color: #EC4899;
    --accent-color: #06B6D4;
    --dark-bg: #0F0F1A;
    --card-bg: #1A1A2E;
    --card-hover: #252542;
    --text-primary: #FFFFFF;
    --text-secondary: #A0AEC0;
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --gradient-neon: linear-gradient(90deg, #06B6D4, #8B5CF6, #EC4899);
    --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

/* 动态背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 顶部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 48px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu li a {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.2);
}

.nav-cta {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.5);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(139, 92, 246, 0.5);
}

.btn-outline:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--primary-color);
    color: white;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.hero-badge::before {
    content: '🔥';
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-visual {
    position: relative;
}

.hero-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-glow);
}

.hero-float-card {
    position: absolute;
    background: var(--card-bg);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow-glow);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.hero-float-card.card-1 {
    top: 20%;
    left: -40px;
    animation: float 3s ease-in-out infinite;
}

.hero-float-card.card-2 {
    bottom: 20%;
    right: -40px;
    animation: float 3s ease-in-out infinite 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 视频卡片网格 */
.video-section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(139, 92, 246, 0.3);
}

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

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    cursor: pointer;
}

.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 20px solid white;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.video-card:hover .video-play-btn {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.8);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.video-info {
    padding: 20px;
}

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.video-author {
    display: flex;
    align-items: center;
    gap: 8px;
}

.video-author img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.video-views {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 服务模块 */
.services-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.05) 50%, transparent 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 创作者展示 */
.creators-section {
    padding: 100px 0;
}

.creators-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.creator-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.creator-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.creator-cover {
    height: 200px;
    overflow: hidden;
}

.creator-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.creator-card:hover .creator-cover img {
    transform: scale(1.05);
}

.creator-info {
    padding: 24px;
    text-align: center;
    position: relative;
}

.creator-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid var(--card-bg);
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    object-fit: cover;
}

.creator-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 8px;
}

.creator-title {
    font-size: 0.875rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.creator-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding-top: 16px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

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

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

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

/* 专家团队 */
.experts-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(236, 72, 153, 0.05) 50%, transparent 100%);
}

.experts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.expert-card {
    display: flex;
    gap: 24px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.expert-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.expert-info {
    flex: 1;
}

.expert-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.expert-role {
    font-size: 0.9375rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.expert-bio {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.expert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.expert-tag {
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--primary-color);
}

/* FAQ区域 */
.faq-section {
    padding: 100px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    border: 1px solid rgba(139, 92, 246, 0.1);
    overflow: hidden;
}

.faq-question {
    padding: 24px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(139, 92, 246, 0.05);
}

.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active .faq-answer {
    padding: 0 24px 24px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 用户评价 */
.testimonials-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(6, 182, 212, 0.05) 50%, transparent 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.testimonial-stars {
    color: #FBBF24;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.testimonial-content {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-name {
    font-weight: 600;
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 页脚 */
.footer {
    background: var(--card-bg);
    padding: 80px 0 32px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo img {
    height: 40px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gradient-primary);
}

.footer-column h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 24px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-qr img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
}

.footer-qr span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 100px 0 24px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    font-size: 0.875rem;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-list li::after {
    content: '/';
    color: var(--text-secondary);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: var(--text-secondary);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

.breadcrumb-list .current {
    color: var(--text-primary);
}

/* 页面标题区域 */
.page-header {
    padding: 40px 0 60px;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 筛选器 */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--card-bg);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

/* 工具卡片 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tool-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.tool-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.tool-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.tool-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.tool-features {
    list-style: none;
    text-align: left;
    margin-bottom: 24px;
}

.tool-features li {
    padding: 8px 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tool-features li::before {
    content: '✓';
    color: var(--accent-color);
    font-weight: bold;
}

/* 社区帖子 */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.post-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: var(--transition);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.post-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.post-author-name {
    font-weight: 600;
}

.post-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.post-content {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.post-image {
    width: 100%;
    border-radius: 12px;
    margin-bottom: 16px;
}

.post-actions {
    display: flex;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.post-action {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.post-action:hover {
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-desc {
        margin: 0 auto 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .creators-grid,
    .testimonials-grid,
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experts-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .creators-grid,
    .testimonials-grid,
    .tools-grid,
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .expert-card {
        flex-direction: column;
        text-align: center;
    }
    
    .expert-avatar {
        margin: 0 auto;
    }
    
    .nav-cta {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
}