* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: linear-gradient(135deg, #a8d8ea 0%, #ffc8dd 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: float 8s ease-in-out infinite;
}

.circle:nth-child(1) {
    width: 150px;
    height: 150px;
    top: 10%;
    left: 15%;
    animation-delay: 0s;
}

.circle:nth-child(2) {
    width: 100px;
    height: 100px;
    top: 5%;
    left: 50%;
    animation-delay: 2s;
}

.circle:nth-child(3) {
    width: 80px;
    height: 80px;
    top: 15%;
    left: 75%;
    animation-delay: 4s;
}

.circle:nth-child(4) {
    width: 120px;
    height: 120px;
    top: 70%;
    left: 20%;
    animation-delay: 1s;
}

.circle:nth-child(5) {
    width: 90px;
    height: 90px;
    top: 75%;
    left: 45%;
    animation-delay: 3s;
}

.circle:nth-child(6) {
    width: 110px;
    height: 110px;
    top: 85%;
    left: 70%;
    animation-delay: 5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

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

.logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.title {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 16px;
    color: #666;
    margin-bottom: 40px;
}

.buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

.btn-icon {
    font-size: 24px;
}

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

.btn-text-top {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 2px;
}

.btn-text-bottom {
    font-size: 16px;
    font-weight: bold;
}

.btn-red {
    background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
}

.btn-red:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
}

.btn-yellow {
    background: linear-gradient(135deg, #ffa502 0%, #ff7f50 100%);
}

.btn-yellow:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 165, 2, 0.4);
}

.btn-blue {
    background: linear-gradient(135deg, #3742fa 0%, #70a1ff 100%);
}

.btn-blue:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(55, 66, 250, 0.4);
}

.stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-bottom: 80px;
}

.stat-item {
    text-align: center;
    padding: 30px 40px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

.section-title {
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 40px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.feature-title {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
}

.feature-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.screenshots {
    margin-bottom: 80px;
}

.screenshot-scroll {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.screenshot-scroll::-webkit-scrollbar {
    display: none;
}

.screenshot-track {
    display: flex;
    gap: 20px;
    padding: 10px 0;
}

.screenshot-card {
    flex: 0 0 auto;
    width: 70%;
    scroll-snap-align: center;
}

.screenshot-card .screenshot {
    width: 100%;
    border-radius: 15px;
    display: block;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.scroll-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}

.indicator.active {
    background: white;
    transform: scale(1.3);
}

.contact {
    text-align: center;
    margin-bottom: 80px;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.contact-btn {
    padding: 12px 30px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 30px;
    background: transparent;
    color: #333;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background: white;
    border-color: white;
}

.footer {
    text-align: center;
    padding: 30px;
    color: #666;
    font-size: 13px;
    line-height: 1.8;
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}

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

.scroll-top:hover {
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .title {
        font-size: 28px;
    }

    .btn {
        padding: 12px 25px;
        font-size: 14px;
    }

    .stats {
        gap: 20px;
    }

    .stat-item {
        padding: 20px;
    }

    .stat-number {
        font-size: 24px;
    }
}