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

:root {
    --primary-color: #ff85c1;
    --secondary-color: #ffa8d5;
    --accent-color: #fc7dd8;
    --text-dark: #2D3436;
    --text-light: #636E72;
    --bg-light: #FFF5FA;
    --white: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #ff85c1 0%, #fc7dd8 100%);
    --gradient-light: linear-gradient(135deg, #ffa8d5 0%, #ff9ee6 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.brand-name {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* 主横幅 */
.hero {
    margin-top: 70px;
    padding: 80px 0;
    background: var(--gradient-primary);
    color: var(--white);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 28px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 400px;
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* 功能特性 */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, #ffffff 100%);
}

.section-title {
    font-size: 42px;
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(255, 133, 193, 0.2);
    border: 2px solid var(--primary-color);
}

.feature-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 应用截图 */
.screenshots {
    padding: 100px 0;
    background: var(--white);
}

.screenshots-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-behavior: smooth;
}

.screenshots-slider::-webkit-scrollbar {
    height: 8px;
}

.screenshots-slider::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 10px;
}

.screenshots-slider::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 10px;
}

.screenshot-item {
    flex: 0 0 300px;
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 15px;
}

.screenshot-item p {
    font-size: 16px;
    color: var(--text-light);
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
}

.download .section-title,
.download .section-subtitle {
    color: var(--white);
}

.coming-soon {
    margin: 60px 0;
}

.coming-soon-icon {
    font-size: 80px;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

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

.coming-soon h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.coming-soon-text {
    font-size: 18px;
    line-height: 1.8;
    opacity: 0.9;
}

.platform-badges {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 60px 0;
    flex-wrap: wrap;
}

.platform-badge {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px 60px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
}

.platform-badge:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.platform-icon {
    margin-bottom: 20px;
}

.platform-icon svg {
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.platform-badge p {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.badge-status {
    display: inline-block;
    background: rgba(255, 255, 255, 0.3);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    backdrop-filter: blur(5px);
}

.notify-form {
    max-width: 600px;
    margin: 60px auto 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.notify-form h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.notify-form > p {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.email-form {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.email-form input {
    flex: 1;
    min-width: 250px;
    padding: 15px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 16px;
    outline: none;
    transition: all 0.3s;
}

.email-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.email-form input:focus {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.email-form button {
    padding: 15px 40px;
    white-space: nowrap;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.contact-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.contact-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.contact-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-brand {
    flex: 1;
    min-width: 250px;
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-image img {
        max-width: 300px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .platform-badge {
        width: 100%;
        max-width: 300px;
    }
    
    .email-form {
        flex-direction: column;
    }
    
    .email-form input {
        width: 100%;
    }
    
    .email-form button {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

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

.feature-card,
.screenshot-item,
.contact-item {
    animation: fadeInUp 0.6s ease-out;
}