body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: #FFFFFF;
}

.bluemango-container {
    width: 100%;
    margin: 0;
    padding: 0;
    text-align: center;
}

.header-section {
    position: relative;
    padding: 20px 0;
    background: #FAFAFA;
    overflow: hidden;
}

.header-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #F0F9FF 0%, #F8FBFF 100%);
    border-bottom-left-radius: 30% 20%;
    border-bottom-right-radius: 30% 20%;
    z-index: 0;
}

.header-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 600px;
    padding: 40px 20px;
}

.logo-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
}

.logo-icon {
    width: 80px;
    height: auto;
}

.logo-text {
    width: 120px;
    height: auto;
}

.logo-text h1 {
    font-size: 36px;
    color: #333;
    margin: 0;
}

.logo-text p {
    font-size: 18px;
    color: #666;
    margin: 5px 0 0;
}

.download-btn {
    margin-left: 0;
}

.download-btn img {
    height: 44px;
    width: auto;
    display: block;
}

.advantages-section {
    padding: 40px 0;
    text-align: center;
    background: #FAFAFA;
}

.advantages-section h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 40px;
}

.advantages-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 70px;
    padding: 0 20px;
}

.advantage-item {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 20px;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.advantage-item img {
    width: 75px;
    height: 55px;
    margin-bottom: 20px;
}

.advantage-item h3 {
    font-size: 24px;
    color: #333;
    margin: 0 0 10px;
}

.advantage-item p {
    font-size: 16px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

.concerns-section {
    padding: 20px 0;
    background: #FAFAFA;
}

.concerns-section h2 {
    font-size: 32px;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
}

.concerns-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: 30px;
    padding: 0 20px;
}

.concern-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 100%;
}

.concern-item {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    text-align: left;
}

.concern-item h3 {
    font-size: 20px;
    color: #333;
    margin: 0 0 10px;
    text-align: left;
}

.concern-item p {
    font-size: 16px;
    color: #666;
    margin: 0;
    line-height: 1.5;
    text-align: left;
}

.device-icons {
    display: flex;
    gap: 20px;
    margin-top: 15px;
}

.device-icons span {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background: #F0F9FF;
    border-radius: 20px;
    color: #333;
    font-size: 14px;
}

.philosophy-item {
    background: #FFFFFF;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    width: calc(100% - 40px);
}

.philosophy-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin: 0 0 15px;
    text-align: center;
}

.philosophy-item p:last-child {
    margin-bottom: 0;
}

.footer-section {
    background: #FFFFFF;
    padding: 30px 0;
    margin-top: 0;
}

.footer-section p {
    color: #666666;  /* 浅灰色文字 */
    font-size: 14px;
    margin: 5px 0;
    line-height: 1.5;
}

.footer-section .auth {
    margin-top: 10px;
}

.footer-section .auth img {
    vertical-align: middle;
    margin-right: 5px;
}

.footer-section .icp-info p {
    margin-bottom: 5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .concern-row {
        grid-template-columns: 1fr;
    }
    
    .header-section {
        padding: 40px 0;
    }
    
    .download-btn {
        position: static;
        margin-top: 20px;
    }
    
    .logo-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .device-icons {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .advantage-item {
        padding: 20px;
    }
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .header-section {
        padding: 30px 0;
    }

    .logo-content {
        flex-direction: column;
        gap: 10px;
    }

    .logo {
        width: 80px;
    }

    .download-btn {
        position: static;
        margin-top: 20px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
        padding: 0 15px;
    }

    .concerns-grid {
        max-width: 100%;
        padding: 0 15px;
    }

    .concern-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .philosophy-item p {
        padding: 0 15px;
    }

    .advantage-item {
        padding: 20px;
    }

    .advantage-item img {
        width: 50px;
        height: 40px;
    }

    .advantage-item h3 {
        font-size: 20px;
    }

    .device-icons {
        flex-wrap: wrap;
        justify-content: center;
    }

    .header-content {
        gap: 20px;
        flex-direction: column;
    }

    .logo-content {
        margin-bottom: 10px;
    }
}

/* 更小屏幕的适配 */
@media screen and (max-width: 480px) {
    .logo-text h1 {
        font-size: 28px;
    }

    .logo-text p {
        font-size: 16px;
    }

    .advantages-section h2,
    .concerns-section h2,
    .philosophy-section h2 {
        font-size: 24px;
    }
}

.header-curve {
    display: none;
}

/* 所需设备区域 */
.device-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #FFFFFF;
    border-radius: 12px;
    margin: 20px;
}

.device-text {
    font-size: 16px;
    color: #333;
    margin-bottom: 4px;
}

.device-subtext {
    font-size: 12px;
    color: #666;
}

.device-header {
    margin-bottom: 10px;
}

.device-section {
    display: flex;
    justify-content: flex-end;
}

.device-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 100%;
}

.device-title {
    flex: 1;
}

.device-combined-icon {
    height: 60px;
    width: auto;
    object-fit: contain;
    margin-left: 20px;
}

/* 移动端稍微小一点但仍然保持合适大小 */
@media screen and (max-width: 768px) {
    .device-combined-icon {
        height: 50px;
    }
}

@media screen and (max-width: 768px) {
    .header-section {
        position: relative;
        padding: 20px 0;
        background: #FAFAFA;
        overflow: hidden;
    }
    
    .header-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        height: 100%;
        background: linear-gradient(180deg, #F0F9FF 0%, #F8FBFF 100%);
        border-bottom-left-radius: 30% 20%;
        border-bottom-right-radius: 30% 20%;
        z-index: 0;
    }

    .header-content {
        gap: 15px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: 20px;
    }

    .logo-content {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .logo-icon {
        width: 150px;
    }
    
    .logo-text {
        width: 90px;
    }

    .download-btn img {
        height: 35px;
        margin: 0 auto;
    }
}

.footer-section .auth a {
    text-decoration: none;
    color: #666666;
}

.footer-section .auth a:hover {
    text-decoration: underline;
    color: #666666;
}