/* 全局样式 */
:root {
    --primary-color: #508ae9;
    --secondary-color: #77b0f5;
    --accent-color: #93c5fd;
    --text-color: #1e293b;
    --text-light: #64748b;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}
.swiper-box {
    top: 40px;
    right: 100px;
    position: relative;
    display: flex;align-items: center;justify-content: center;padding: 16px;
}
.swiper {
    width: 250px;
    height: auto;
}  
.swiper img {
    width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
}

.container {
    margin: 0 auto;
    padding: 0 5%;
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    margin: 0 auto;
}

.logo h1 {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

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


.hero {
    min-height: 70vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    opacity: 0.1;
    z-index: 1;
}

.hero-content {
    max-width: 500px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 1.2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards 0.3s;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    line-height: 1.6;
}

.app-buttons {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.app-button {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.app-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.hero-image {
    max-width: 350px;
    animation: float 6s ease-in-out infinite;
    position: relative;
    z-index: 2;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

/* 特色功能部分 */
.features {
    padding: 120px 0;
    background: var(--light-bg);
}

.features h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    color: var(--text-color);
    position: relative;
}

.features h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-cards{
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    gap: 2rem;
}

.feature-card {
    width: 300px;
    padding: 3rem 2rem;
    text-align: center;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 1.1rem;
}

/* 下载部分 */
.download {
    padding: 120px 0;
    background: linear-gradient(135deg, #f3f3f5, #f1f5f9);
}

.download h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    color: var(--text-color);
    position: relative;
}

.download h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

.download-content {
    display: flex;
    flex-direction: row;
    align-items: space-around;
    max-width: 1200px;
    margin: 0 auto;
}
.download-cards {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
}
.download-card {
    gap: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.download-text {
    width: 100%;
    text-align: left;
}

.download-text h3 {
    font-size: 2.8rem; 
    margin-bottom: 1.2rem;
    color: var(--primary-color);
    line-height: 1.2;
}

.download-text p {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.qr-code {
    margin-top: 2rem;
    display: inline-block;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.qr-code:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
}

.qr-code img {
    width: 200px;
    height: 200px;
    border-radius: 10px;
}
.download-stats {
    margin-top: 2em;
    display: flex; 
    flex-direction: row; 
    justify-content: space-around;
}
.stat-item {
    width: 300px;
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.stat-item p {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
}

/* 联系我们部分 */
.contact {
    padding: 120px 0;
    background: var(--light-bg);
}

.contact h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    color: var(--text-color);
    position: relative;
}

.contact h2::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.submit-button:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* 页脚样式 */
.footer {
    background: var(--text-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
    padding: 0 2rem;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--white);
    position: relative;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--white);
    font-size: 1.5rem;
    transition: var(--transition);
    opacity: 0.8;
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
    opacity: 1;
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

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

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 2rem 0;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-app-links {
    display: flex;
    gap: 1rem;
}

.app-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    transition: var(--transition);
}

.app-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
        padding: 0.8rem 0;
    }

    .hero {
        min-height: auto;
        padding: 120px 2rem 60px;
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: 3rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .app-buttons {
        justify-content: center;
    }

    .hero-image {
        max-width: 280px;
        margin: 0 auto;
    }

    .features {
        padding: 60px 0;
    }

    .features h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 2rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

    .feature-card h3 {
        font-size: 1.3rem;
    }

    .feature-card p {
        font-size: 1rem;
    }

    .download {
        padding: 60px 0;
    }

    .download-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
        padding: 0 2rem;
    }

    .download-text {
        text-align: center;
    }

    .download-text h3 {
        font-size: 1.8rem;
    }

    .download-text p {
        font-size: 1rem;
    }

    .qr-code {
        margin: 2rem auto;
    }

    .download-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .stat-item {
        padding: 1.5rem;
    }

    .stat-item h3 {
        font-size: 2rem;
    }

    .contact {
        padding: 60px 0;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 2rem;
    }

    .contact-info {
        gap: 1.5rem;
    }

    .contact-form input,
    .contact-form textarea {
        padding: 0.8rem;
    }

    .footer {
        padding: 3rem 0 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 2rem;
    }

    .footer-section {
        text-align: center;
    }

    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .social-links {
        justify-content: center;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-contact li {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 2rem 2rem 0;
    }

    .footer-app-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 120px 1rem 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .app-button {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }

    .hero-image {
        max-width: 240px;
    }

    .features h2 {
        font-size: 1.8rem;
    }

    .feature-card {
        padding: 1.5rem 1rem;
    }

    .feature-card i {
        font-size: 2.5rem;
    }

    .download-text h3 {
        font-size: 1.5rem;
    }

    .stat-item h3 {
        font-size: 1.8rem;
    }

    .contact h2 {
        font-size: 1.8rem;
    }

    .footer-section h3 {
        font-size: 1.1rem;
    }

    .footer-section p,
    .footer-links a,
    .footer-contact li {
        font-size: 0.9rem;
    }

    .footer-bottom {
        padding: 2rem 1rem 0;
    }
}