/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* 导航栏样式 */
.header {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 15px 0;
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    flex-wrap: wrap;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a:hover {
    color: #667eea;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.search-box {
    display: flex;
    gap: 10px;
}

.search-box input {
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    outline: none;
    width: 250px;
    transition: all 0.3s;
}

.search-box input:focus {
    border-color: #667eea;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.2);
}

.search-box button {
    padding: 10px 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* 轮播区样式 */
.hero-section {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-bottom: 50px;
}

.hero-slider {
    position: relative;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

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

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 10;
    width: 80%;
}

.hero-content h1,
.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
}

.cta-button {
    padding: 15px 40px;
    font-size: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5);
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 20;
}

.dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: white;
    width: 40px;
    border-radius: 10px;
}

/* 区块样式 */
.section {
    padding: 60px 0;
    background: rgba(255, 255, 255, 0.95);
    margin-bottom: 30px;
    border-radius: 20px;
}

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

.section-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 18px;
    color: #666;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.movie-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    cursor: pointer;
}

.movie-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
}

.movie-card img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.card-info {
    padding: 20px;
}

.card-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.rating {
    color: #ff9800;
    font-weight: bold;
    margin-bottom: 10px;
}

.desc {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.tag {
    display: inline-block;
    padding: 5px 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px;
    font-size: 12px;
    margin-right: 8px;
    margin-top: 5px;
}

/* 文章网格 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
}

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

.article-content {
    padding: 25px;
}

.article-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    line-height: 1.4;
}

.article-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
}

.article-text {
    color: #666;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: justify;
}

.read-more {
    color: #667eea;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.read-more:hover {
    color: #764ba2;
}

/* APP下载模块 */
.app-download {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.app-download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.app-info h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.app-slogan {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.app-features {
    list-style: none;
    margin-bottom: 40px;
}

.app-features li {
    font-size: 18px;
    padding: 12px 0;
    opacity: 0.95;
}

.download-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 30px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-icon {
    font-size: 32px;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-label {
    font-size: 18px;
    font-weight: bold;
}

.btn-sub {
    font-size: 12px;
    opacity: 0.8;
}

.qr-code-section {
    display: flex;
    gap: 30px;
}

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

.qr-code img {
    width: 150px;
    height: 150px;
    background: white;
    padding: 10px;
    border-radius: 15px;
}

.qr-code p {
    margin-top: 10px;
    font-size: 14px;
}

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

.phone-mockup {
    max-width: 100%;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* 用户评价模块 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.2);
}

.user-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 4px solid #667eea;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
    font-style: italic;
}

.user-name {
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.user-location {
    font-size: 14px;
    color: #999;
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 60px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-section p {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.social-icon {
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    transition: all 0.3s;
    font-size: 14px;
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
}

.footer-links a:hover {
    color: #667eea;
    padding-left: 5px;
}

.contact-info {
    list-style: none;
}

.contact-info li {
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.app-download-footer {
    margin-top: 20px;
}

.app-download-footer p {
    margin-bottom: 15px;
}

.qr-small {
    width: 120px;
    height: 120px;
    background: white;
    padding: 8px;
    border-radius: 10px;
}

.footer-links-section {
    margin-bottom: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
}

.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.friend-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    transition: all 0.3s;
    font-size: 14px;
}

.friend-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.partner-links {
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright {
    text-align: center;
    flex: 1;
}

.copyright p {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.copyright a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
}

.copyright a:hover {
    color: #667eea;
}

.disclaimer {
    font-size: 12px;
    opacity: 0.6;
    margin-top: 10px;
}

.certifications {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.cert-badge {
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 13px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
    }

    .nav-menu {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100%;
    }

    .hero-content h1,
    .hero-content h2 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 18px;
    }

    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .app-download-content {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        height: 400px;
    }

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

    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}