/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
 
html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}
 
a {
    text-decoration: none;
    color: inherit;
}
 
img {
    max-width: 100%;
    height: auto;
}
 
/* 全屏滚动容器 */
.scroll-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}
 
/* 单个页面 */
.page {
    position: absolute;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.645, 0.045, 0.355, 1);
    will-change: transform;
}
 
/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
}
 
.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
 
.navbar-logo {
    height: 30px;
}
 
.navbar-toggle {
    font-size: 1.5rem;
    color: #333;
    background: none;
    border: none;
    cursor: pointer;
}
 
.navbar-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: white;
    padding: 20px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    display: none;
}
 
.navbar-menu.show  {
    display: block;
}
 
.navbar-menu a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}
 
/* 页面1 - 首页 */
.page-1 {
    background: linear-gradient(135deg, #FF6584 0%, #FF8DA1 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}
 
.page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
}
 
.page-text {
    flex: 1;
    padding: 0 20px;
}
 
.page-image {
    flex: 1;
    text-align: center;
    padding: 0 20px;
}
 
.page-image img {
    max-width: 100%;
    max-height: 60vh;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}
 
.page-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 7 
00;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
    line-height: 1.2;
}
 
.page-subtitle {
    font-size: 1.4rem;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease 0.2s;
    line-height: 1.5;
}
 
.page-buttons {
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease 0.4s;
    display: flex;
    flex-wrap: wrap;
}
 
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    margin: 0 10px 15px 0;
}
 
.btn-primary {
    background-color: white;
    color: #FF6584;
}
 
.btn-primary:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}
 
.btn-outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}
 
.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}
 
/* 页面2 - APP引导 */
.page-2 {
    background: linear-gradient(135deg, #FF8DA1 0%, #FF6584 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 80px;
}
 
.app-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}
 
.app-text {
    width: 100%;
    text-align: center;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
    padding: 0 20px;
}
 
.app-image {
    width: 100%;
    text-align: center;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease 0.2s;
    padding: 0 20px;
}
 
.app-image img {
    max-width: 100%;
    max-height: 60vh;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}
 
/* 下载按钮样式 - 统一居中方案 */
.app-downloads {
    width: 100%;
    max-width: 280px;
    margin: 15px auto 25px;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease 0.4s;
}
 
.app-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}
 
.app-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    line-height: 1.5;
}
 
.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: 50px;
    margin-bottom: 12px;
    color: white;
    background-color: rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
}
 
.download-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}
 
.download-btn-content {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
 
.download-btn i {
    font-size: 1.5rem;
    margin-right: 12px;
    flex-shrink: 0;
}
 
.download-btn-text {
    text-align: center;
}
 
.download-btn-text div {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.2;
}
 
.download-btn-text small {
    display: block;
    font-size: 0.8rem;
    opacity: 0.8;
    line-height: 1.2;
}
 
/* 页面3 - 特性 */
.page-3 {
    background: linear-gradient(135deg, #FF6584 0%, #FF8DA1 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 80px;
}
 
.features-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}
 
.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}
 
.feature-row {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}
 
.feature-card {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 40px 30px;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
    min-width: 300px;
}
 
.feature-card:nth-child(1) {
    transition-delay: 0.2s;
}
 
.feature-card:nth-child(2) {
    transition-delay: 0.4s;
}
 
.feature-card:nth-child(3) {
    transition-delay: 0.6s;
}
 
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}
 
.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    text-align: center;
}
 
.feature-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
    text-align: center;
}
 
.feature-desc {
    font-size: 1rem;
    opacity: 0.9;
    text-align: center;
    line-height: 1.6;
}
 
/* 页脚 */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #333;
    color: white;
    padding: 20px 0;
    z-index: 100;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}
 
.footer.show  {
    transform: translateY(0);
}
 
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
 
.footer-grid {
    display: flex;
    flex-wrap: wrap;
}
 
.footer-col {
    flex: 1;
    min-width: 250px;
    margin-bottom: 15px;
}
 
.footer-title {
    font-size: 1.1rem;
    margin-bottom: 15px;
    font-weight: 600;
}
 
.footer-list {
    list-style: none;
    font-size: 0.9rem;
}
 
.footer-list li {
    margin-bottom: 8px;
}
 
.footer-list a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}
 
.footer-list a:hover {
    color: white;
}
 
.copyright {
    text-align: center;
    padding-top: 15px;
    margin-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
}
 
/* 滚动提示 */
.scroll-hint {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    z-index: 100;
    opacity: 0.8;
    animation: bounce 2s infinite;
}
 
.scroll-hint i {
    font-size: 2rem;
    display: block;
    margin-bottom: 5px;
}
 
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}
 
/* 响应式设计 - PC端 */
@media (min-width: 992px) {
    .app-content {
        flex-direction: row;
        align-items: center;
    }
    
    .app-text {
        flex: 1;
        text-align: left;
        margin-bottom: 0;
        padding-right: 40px;
    }
    
    .app-image {
        flex: 1;
        margin-bottom: 0;
    }
    
    .page-text {
        padding-right: 40px;
    }
    
    .page-image {
        padding-left: 40px;
    }
    
    .page-buttons {
        flex-direction: row;
    }
    
    .btn {
        margin: 0 10px 15px 0;
    }
    
    /* PC端下载按钮 */
    .download-btn {
        max-width: 240px;
    }
}
 
/* 响应式设计 - 移动端优化 */
@media (max-width: 991px) {
    .page-title, .app-title, .section-title {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }
    
    .page-subtitle, .app-subtitle {
        font-size: 1.1rem;
        margin-bottom: 16px;
        line-height: 1.4;
    }
    
    .page-content, .app-content {
        padding: 0 15px;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .page-text, .page-image, .app-text, .app-image {
        padding: 8px;
    }
    
    .page-image {
        order: -1;
        margin-bottom: 15px;
    }
    
    .page-image img, .app-image img {
        max-height: 36vh;
        max-width: 80%;
        margin: 0 auto;
    }
    
    .page-buttons {
        flex-direction: column;
        align-items: center;
        margin-bottom: 20px;
    }
    
    .btn {
        width: 100%;
        max-width: 260px;
        margin: 0 0 10px 0;
        padding: 10px 20px;
    }
    
    .app-text {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        margin-bottom: 10px;
    }
    
    .app-title {
        margin-bottom: 8px;
    }
    
    .app-subtitle {
        margin-bottom: 12px;
    }
    
    /* 移动端下载按钮 */
    .app-downloads {
        max-width: 280px;
        margin: 15px auto 25px;
    }
    
    .download-btn {
        max-width: 260px;
        padding: 12px 20px;
    }
    
    .download-btn i {
        font-size: 1.5rem;
        margin-right: 10px;
    }
    
    .feature-card {
        padding: 20px 15px;
        margin-bottom: 12px;
    }
    
    .feature-title {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .feature-desc {
        font-size: 0.95rem;
    }
    
    /* 隐藏不需要的元素 */
    .navbar, .footer, .scroll-hint {
        display: none;
    }
    
    /* 确保页面2全屏显示 */
    #page2 {
        display: flex !important;
        padding-top: 15px;
        padding-bottom: 15px;
    }
    
    .app-content {
        justify-content: space-around;
        height: 100%;
    }
    
    .app-image {
        flex: 1.2;
        display: flex;
        align-items: flex-end;
        justify-content: center;
        margin-bottom: 8px;
    }
}
 
/* 激活页面的动画 */
.page.active  .page-title,
.page.active  .page-subtitle,
.page.active  .page-buttons,
.page.active  .page-image,
.page.active  .app-text,
.page.active  .app-image,
.page.active  .app-downloads,
.page.active  .section-title,
.page.active  .feature-card {
    opacity: 1;
    transform: translateY(0);
}