/* 
 * 自媒体视频创作网站样式表
 * 独特配色方案：深紫渐变 + 金色点缀
 * 2026年现代设计风格
 */

/* CSS变量定义 */
:root {
    --primary-gradient: linear-gradient(135deg, #1a0a2e 0%, #2d1b4e 50%, #4a2c7a 100%);
    --accent-gold: #d4af37;
    --accent-gold-light: #f4d03f;
    --text-primary: #ffffff;
    --text-secondary: #b8a9c9;
    --bg-card: rgba(45, 27, 78, 0.85);
    --bg-overlay: rgba(26, 10, 46, 0.92);
    --border-glow: rgba(212, 175, 55, 0.3);
    --shadow-deep: 0 20px 60px rgba(0, 0, 0, 0.4);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 全局重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    background: var(--primary-gradient);
    color: var(--text-primary);
    line-height: 1.8;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 容器布局 */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 - 非sticky */
.main-nav {
    background: var(--bg-overlay);
    padding: 18px 0;
    border-bottom: 1px solid var(--border-glow);
    position: relative;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

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

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu li a {
    display: block;
    padding: 10px 18px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    font-size: 0.95rem;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--accent-gold);
    background: rgba(212, 175, 55, 0.1);
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light)) !important;
    color: #1a0a2e !important;
    font-weight: 600;
    padding: 12px 24px !important;
    border-radius: var(--radius-md) !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 2px solid var(--accent-gold);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--accent-gold);
    font-size: 1.2rem;
}

/* Hero区域 */
.hero-section {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 60px 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(26, 10, 46, 0.7) 0%, rgba(45, 27, 78, 0.9) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.hero-title {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-title span {
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
    color: #1a0a2e;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.05rem;
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(212, 175, 55, 0.5);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 36px;
    background: transparent;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.05rem;
    border: 2px solid var(--accent-gold);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(212, 175, 55, 0.15);
    transform: translateY(-3px);
}

/* 章节通用样式 */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-title span {
    color: var(--accent-gold);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 视频卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-glow);
    transition: var(--transition-smooth);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-deep);
    border-color: var(--accent-gold);
}

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

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

.video-card:hover .video-thumb img {
    transform: scale(1.08);
}

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 10, 46, 0.5);
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.play-btn {
    width: 70px;
    height: 70px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a0a2e;
    font-size: 1.8rem;
    transition: var(--transition-smooth);
}

.play-btn:hover {
    transform: scale(1.15);
}

.video-info {
    padding: 22px;
}

.video-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.video-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--accent-gold);
}

/* 明星合作模块 */
.collab-section {
    background: linear-gradient(135deg, rgba(45, 27, 78, 0.95), rgba(74, 44, 122, 0.9));
    border-radius: var(--radius-lg);
    padding: 50px;
    margin: 40px 0;
}

.collab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.collab-item {
    background: rgba(26, 10, 46, 0.6);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-glow);
    transition: var(--transition-smooth);
}

.collab-item:hover {
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}

.collab-img {
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.collab-info {
    padding: 20px;
}

.collab-info h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--accent-gold);
}

.collab-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* 咨询模块 */
.consult-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 50px;
    text-align: center;
    border: 2px solid var(--accent-gold);
    margin: 40px 0;
}

.consult-title {
    font-size: 2rem;
    margin-bottom: 20px;
}

.consult-desc {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 海外公关模块 */
.pr-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.pr-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 35px;
    border: 1px solid var(--border-glow);
    transition: var(--transition-smooth);
}

.pr-card:hover {
    border-color: var(--accent-gold);
}

.pr-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.pr-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.pr-card p {
    color: var(--text-secondary);
}

/* 案例模块 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.case-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-glow);
    transition: var(--transition-smooth);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-deep);
}

.case-img {
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

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

.case-info {
    padding: 25px;
}

.case-info h4 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.case-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 关于我们 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    text-align: justify;
}

.about-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 3px solid var(--border-glow);
}

.about-img img {
    width: 100%;
    height: auto;
    display: block;
}

/* 支付方式 */
.payment-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin: 40px 0;
}

.payment-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

.payment-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 25px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-glow);
}

.payment-item.highlight {
    border-color: var(--accent-gold);
    background: rgba(212, 175, 55, 0.15);
}

.payment-item span {
    font-weight: 600;
}

/* 授权信息 */
.license-section {
    background: linear-gradient(135deg, rgba(45, 27, 78, 0.9), rgba(26, 10, 46, 0.95));
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--border-glow);
    margin: 40px 0;
}

.license-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.license-item {
    text-align: center;
    padding: 25px;
    background: rgba(26, 10, 46, 0.5);
    border-radius: var(--radius-md);
}

.license-badge {
    width: 80px;
    height: 80px;
    margin: 0 auto 15px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.license-item h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.license-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 客户支持 */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.support-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-glow);
    transition: var(--transition-smooth);
}

.support-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}

.support-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 1.5rem;
}

.support-card h4 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.support-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* FAQ模块 */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    border: 1px solid var(--border-glow);
    overflow: hidden;
}

.faq-question {
    padding: 22px 28px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.faq-question:hover {
    background: rgba(212, 175, 55, 0.08);
}

.faq-question h4 {
    font-size: 1.05rem;
    font-weight: 600;
}

.faq-toggle {
    width: 30px;
    height: 30px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a0a2e;
    font-weight: 700;
    transition: var(--transition-smooth);
}

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

.faq-answer {
    padding: 0 28px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item.active .faq-answer {
    padding: 0 28px 22px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 用户评论 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 25px;
}

.review-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--border-glow);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 18px;
}

.review-avatar {
    width: 55px;
    height: 55px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: #1a0a2e;
}

.review-info h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.review-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.review-rating {
    color: var(--accent-gold);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.review-content {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
}

.review-date {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 页脚 */
.main-footer {
    background: var(--bg-overlay);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-glow);
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.footer-col ul {
    list-style: none;
}

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

.footer-col ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-col ul li a:hover {
    color: var(--accent-gold);
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

.footer-social a {
    width: 42px;
    height: 42px;
    background: rgba(212, 175, 55, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-social a:hover {
    background: var(--accent-gold);
    color: #1a0a2e;
}

.footer-payment {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.footer-payment img {
    height: 30px;
    width: auto;
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-glow);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 0;
    background: rgba(26, 10, 46, 0.5);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 10px;
    list-style: none;
    flex-wrap: wrap;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-list li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.breadcrumb-list li a:hover {
    color: var(--accent-gold);
}

.breadcrumb-list li.active {
    color: var(--accent-gold);
}

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

.breadcrumb-list li:last-child::after {
    content: '';
}

/* 视频播放器 */
.video-player-wrapper {
    position: relative;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 30px 0;
}

.video-player {
    width: 100%;
    height: 100%;
}

.video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    display: flex;
    align-items: center;
    gap: 15px;
}

.video-progress {
    flex: 1;
    height: 5px;
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
    cursor: pointer;
}

.video-progress-bar {
    height: 100%;
    background: var(--accent-gold);
    border-radius: 3px;
    width: 35%;
}

/* APP下载页面样式 */
.app-hero {
    text-align: center;
    padding: 80px 20px;
}

.app-mockup {
    max-width: 350px;
    margin: 40px auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-deep);
}

.app-mockup img {
    width: 100%;
    height: auto;
}

.download-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 30px;
    background: var(--bg-card);
    border: 2px solid var(--accent-gold);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.download-btn:hover {
    background: var(--accent-gold);
    color: #1a0a2e;
}

.download-btn .icon {
    font-size: 2rem;
}

.download-btn .text {
    text-align: left;
}

.download-btn .text small {
    display: block;
    font-size: 0.75rem;
    opacity: 0.8;
}

.download-btn .text strong {
    font-size: 1.1rem;
}

/* 内页样式 */
.page-header {
    padding: 60px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(45, 27, 78, 0.9), rgba(74, 44, 122, 0.85));
}

.page-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 15px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.content-section {
    padding: 50px 0;
}

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

.main-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--border-glow);
}

.main-content h2 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--accent-gold);
}

.main-content h3 {
    font-size: 1.3rem;
    margin: 25px 0 15px;
}

.main-content p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    text-align: justify;
}

.main-content img {
    width: 100%;
    border-radius: var(--radius-md);
    margin: 20px 0;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.sidebar-widget {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 25px;
    border: 1px solid var(--border-glow);
}

.sidebar-widget h4 {
    font-size: 1.15rem;
    margin-bottom: 18px;
    color: var(--accent-gold);
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget ul li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-glow);
}

.sidebar-widget ul li:last-child {
    border-bottom: none;
}

.sidebar-widget ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.sidebar-widget ul li a:hover {
    color: var(--accent-gold);
}

/* 响应式设计 - 移动端优先 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-overlay);
        flex-direction: column;
        padding: 20px;
        border-top: 1px solid var(--border-glow);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-section {
        min-height: 70vh;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .collab-section,
    .consult-section,
    .payment-section,
    .license-section {
        padding: 30px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .video-grid,
    .cases-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero-btns {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .pr-section {
        grid-template-columns: 1fr;
    }
    
    .download-btns {
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* 懒加载图片占位 */
img[loading="lazy"] {
    background: linear-gradient(135deg, rgba(45, 27, 78, 0.5), rgba(74, 44, 122, 0.5));
}

/* 打印样式 */
@media print {
    .main-nav,
    .main-footer,
    .video-controls {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}