* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
body {
    background-color: #f5f8ff;
}
.header {
    background: #fff;
    padding: 10px 8%;
    display: flex;
    align-items: center;
    border-radius: 12px 12px 0 0;
    margin: 0 auto;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 1px;
    color: #1976d2;
}
.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}
.banner {
    margin: 0 auto;
    background: linear-gradient(135deg, #42a5f5, #1976d2);
    padding: 50px 20px;
    text-align: center;
    border-radius: 0 0 20px 20px;
    position: relative;
    overflow: hidden;
}
.banner::before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    top: -100px;
    left: -100px;
}
.banner::after {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    bottom: -150px;
    right: -150px;
}
.banner h1 {
    color: #fff;
    font-size: 42px;
    position: relative;
    z-index: 2;
    letter-spacing: 2px;
}
.banner p {
    color: rgba(255,255,255,0.9);
    font-size: 20px;
    margin-top: 16px;
    position: relative;
    z-index: 2;
    letter-spacing: 2px;
}
.container {
    margin: 40px auto;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
}
.func-block {
    padding: 50px 30px;
    border-bottom: 1px solid #e8edf7;
}
.func-title {
    text-align: center;
    font-size: 22px;
    color: #222;
    margin-bottom: 60px;
    letter-spacing: 1px;
}
.phone-wrap {
    display: flex;
    justify-content: center;
    gap: 4%;
    flex-wrap: wrap;
}
.phone-item {
    width: 220px;
    max-width: 30%;
    margin-bottom: 10px;
}
.phone-screen {
    width: 100%;
    height: 480px;
    border: 5px solid #222;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
}
.xcx_img {
    width: 100%;
}
.phone-desc {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    font-weight: 600;
    color: #555;
    letter-spacing: 1px;
}
.phone-desc1 {
    text-align: center;
    margin-top: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 600;
    color: #555;
    letter-spacing: 1px;
}
.footer-qr {
    margin: 0 auto;
    background: linear-gradient(135deg, #42a5f5, #1976d2);
    padding: 20px 8%;
    display: flex;
    align-items: center;
    gap: 30px;
}
.qr-box {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.qr-img {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    object-fit: cover;
}
.qr-text {
    color: #fff;
    letter-spacing: 1px;
    flex-shrink: 0;
}
.qr-text h3 {
    font-size: 18px;
    margin-bottom: 8px;
}
.qr-text p {
    font-size: 14px;
    margin-bottom: 10px;
}
.qr-text button {
    padding: 6px 16px;
    border: none;
    border-radius: 4px;
    background: #fff;
    color: #1976d2;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
}
.footer-info {
    flex: 1;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    line-height: 2.2;
}
.footer-info a:hover {
    text-decoration: underline !important;
}
@media (max-width: 768px) {
    .banner h1 {
        font-size: 28px;
    }
    .banner p {
        font-size: 16px;
    }
    .func-block {
        padding: 40px 15px;
    }
    .phone-item {
        max-width: 45%;
    }
    .phone-screen {
        height: 360px;
    }
    .footer-qr {
        padding: 20px;
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    .footer-info {
        text-align: center;
        padding-top: 10px;
        border-top: 1px solid rgba(255,255,255,0.2);
    }
}