/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #222;
}

.section-header p {
    font-size: 18px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, #FF3366, #FF6633);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 51, 102, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #333;
    border: 2px solid #FF3366;
    margin-left: 15px;
}

.btn-secondary:hover {
    background: rgba(255, 51, 102, 0.1);
    transform: translateY(-3px);
}

/* 头部样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    transition: all 0.3s ease;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #FF3366;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    position: relative;
    padding: 5px 0;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, #FF3366, #FF6633);
    transition: width 0.3s ease;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* 英雄区域样式 */
.hero {
    padding-top: 150px;
    background: linear-gradient(135deg, #f9f9f9 0%, #f0f0f0 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 0 0 50%;
}

.hero-content h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    color: #222;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    color: #666;
    margin-bottom: 30px;
}

.hero-buttons {
    margin-top: 40px;
}

.hero-image {
    flex: 0 0 45%;
    position: relative;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-10deg);
    transition: all 0.5s ease;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0);
}

/* 特点区域样式 */
.features {
    background-color: #fff;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-card i {
    font-size: 50px;
    color: #FF3366;
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #222;
}

.feature-card p {
    font-size: 16px;
    color: #666;
}

/* 应用预览样式 */
.app-preview {
    background: linear-gradient(135deg, #f5f5f5 0%, #eaeaea 100%);
}

.preview-slider {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scrollbar-width: none;
}

.preview-slider::-webkit-scrollbar {
    display: none;
}

.preview-item {
    flex: 0 0 30%;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.preview-item:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

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

/* 下载区域样式 */
.download {
    background: #fff;
}

.download-center {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
}

.download-card-centered {
    max-width: 800px;
    width: 100%;
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-card-centered:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.download-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.download-info {
    flex: 0 0 60%;
}

.download-info i {
    font-size: 50px;
    color: #FF3366;
    margin-bottom: 20px;
    display: inline-block;
}

.download-info h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #222;
}

.download-info p {
    font-size: 18px;
    color: #666;
    margin-bottom: 25px;
}

.app-features {
    margin: 25px 0;
    text-align: left;
}

.app-features li {
    font-size: 16px;
    color: #555;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.app-features li i {
    font-size: 18px;
    color: #4CAF50;
    margin-right: 10px;
    margin-bottom: 0;
}

.download-tips {
    margin-top: 25px;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #FF3366;
}

.download-tips p {
    font-size: 14px;
    color: #666;
    margin-bottom: 0;
    display: flex;
    align-items: center;
}

.download-tips i {
    font-size: 16px;
    margin-right: 8px;
    color: #FF3366;
    margin-bottom: 0;
}

.qrcode-large {
    flex: 0 0 35%;
    text-align: center;
    padding: 10px;
}

.qrcode-large img {
    width: 200px;
    height: 200px;
    margin: 0 auto 15px;
    background: #fff;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.qrcode-large img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.qrcode-large img.enlarged {
    transform: scale(1.2);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
    cursor: zoom-out;
}

.qrcode-large::after {
    content: '点击查看大图';
    display: block;
    font-size: 12px;
    color: #999;
    margin-top: -10px;
    margin-bottom: 10px;
}

.qrcode-large p {
    font-size: 16px;
    font-weight: 600;
    color: #555;
}

/* 旧版下载区域样式保留部分 */
.download-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.download-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

.download-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.download-card i {
    font-size: 50px;
    color: #FF3366;
    margin-bottom: 20px;
    display: inline-block;
}

.download-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #222;
}

.download-card p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

/* 关于我们样式 */
.about {
    background: linear-gradient(135deg, #f5f5f5 0%, #eaeaea 100%);
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.about-text {
    flex: 0 0 50%;
}

.about-text p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

.about-image {
    flex: 0 0 45%;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* 页脚样式 */
footer {
    background: #222;
    color: #fff;
    padding: 70px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-logo h3 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.link-group h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.link-group ul li {
    margin-bottom: 12px;
}

.link-group ul li a {
    color: #aaa;
    transition: all 0.3s ease;
}

.link-group ul li a:hover {
    color: #FF3366;
}

.link-group ul li a i {
    margin-right: 8px;
}

.footer-social h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

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

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background: #FF3366;
    transform: translateY(-5px);
}

.social-icons a i {
    font-size: 20px;
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    color: #aaa;
}

.footer-bottom a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #FF3366;
    text-decoration: underline;
}

/* 响应式样式 */
@media (max-width: 1024px) {
    .feature-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-options {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        flex: 0 0 100%;
        text-align: center;
    }
    
    .hero-image {
        margin-top: 40px;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .about-text, .about-image {
        flex: 0 0 100%;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 20px;
        margin: 30px 0;
    }
    
    /* 下载区域响应式 */
    .download-card-centered {
        padding: 30px 20px;
    }
    
    .download-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .download-info, .qrcode-large {
        flex: 0 0 100%;
        text-align: center;
    }
    
    .app-features {
        text-align: left;
        max-width: 300px;
        margin: 20px auto;
    }
}

@media (max-width: 576px) {
    .feature-cards, .download-options {
        grid-template-columns: 1fr;
    }
    
    .preview-slider {
        flex-direction: column;
    }
    
    .preview-item {
        flex: 0 0 100%;
    }
    
    .btn-secondary {
        margin-left: 0;
        margin-top: 15px;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    nav ul li {
        margin-left: 15px;
    }
    
    nav ul li a {
        font-size: 14px;
    }
}