:root {
    --primary-color: #4F6BFF;
    --bg-dark: #202428;
    --card-bg: #2A2A2A;
    --text-light: #FFFFFF;
    --text-gray: #9AA8B1;
    --text-gray2: #E2E2E2;
    --btn-color:#5E75FB;
    
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;scroll-behavior: smooth;
}

/* .main-content{max-width: 971px;margin: 0 auto;} */

/* 导航栏样式 */
.navbar {
    padding: 1.4rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    background: #1F2428;
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.logo img{width: 73px;height: auto;}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 400;
    font-size: 17px;
    color: #FFFFFF;
    line-height: 0px;
    text-align: left;
}

.mobile-menu-btn {
    display: none;
}

/* Hero区域样式 */
.hero {
    padding: 8rem 5% 0rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: url(https://website-cdn.kiwiar.com/homepage/assets/images/bg.png) no-repeat;background-size: 80% 100%;background-position: center;
}

.hero h1 {
    font-size: 2.65rem;
    margin-bottom: 1.5rem;
}

.hero p {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--btn-color);
    color: white;
    border: none;
    padding: 0.4rem 2.6rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
}

/* 场景解决方案样式 */
.solutions {
    text-align: center;
    padding: 4rem 5%;
    background-color: var(--text-light);
    color: var(--bg-dark);
}

.solutions h2 {
    margin-bottom: 1rem;
    color: var(--bg-dark);
}

.solutions > p {
    margin-bottom: 2rem;
    color: #1F2428;
}

.arrow-icon{
    width: 14px;
    margin-left: auto;
    margin-top: 2.5rem;
    cursor: pointer;
}

.solution-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 2rem 0; /* 移除左右内边距，因为已经在solutions中设置了 */
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background-color: var(--card-bg);
    padding: 1.5rem 1.5rem 2rem;
    border-radius: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    text-align: left;
    align-items: flex-start;
    cursor: pointer;
}

.card-icon {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
}

.card-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.card h4 {
    font-size: 1.2rem;
    margin: 0;
    flex: 1;
    color: white;
    /* padding-top: 0.5rem; */
}

.card p {
    color: var(--text-gray2);
    font-size: 0.9rem;
    margin: 0;
    width: 100%;
}

/* 最新葡京线路检测样式 */
.about {
    padding: 4rem 5%;
    background-color: var(--bg-dark);
}

.about-container {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 3rem 0;
    max-width: 1200px;
    margin: 0 auto;
    color: var(--text-light);
    margin-top: 3rem;
    text-align: left;
}
.about-h2{color: var(--text-light)!important;padding: 0 3rem;}

.about-content{color: var(--text-light);width: 64%;margin-top: 1rem;padding: 0 3rem;}

.about-logo {
    width: 80px;
    margin-bottom: 1rem;
    margin-left: 3rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
    padding: 0 3rem;
}

.feature-item {
    /* display: flex;
    align-items: flex-start; */
    gap: 1rem;
}

.feature-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    margin-bottom: 8px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.about-description {
    margin-top: 2rem;
    padding: 2rem 3rem 0 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.about-description p {
    color: var(--text-light);
    line-height: 1.8;
}
.qr-codes{margin-top: 3rem;}
.qr-codes img{width: 6rem;margin-right: 1rem;}
.qr-codes p{text-align: center;width: 6rem;font-size: 12px;}

.contact-info{margin-top: 24px;}
.contact-info p{margin-bottom: .8rem;}

.my-input{
    color: #8B8B8B;
    background: #363A3E;
    border: none;
    padding: 12px 18px;
    outline: none;
    border-radius: 5px;
    width: 100%;
    margin-top: 4px;
}
.half-form-item{
    width: calc(50% - 1rem);
    margin-right: 1rem;
    margin-bottom: .8rem;
}
.my-form{
    margin-left: 4rem;
}
.full-form-item{
    width: calc(100% - 1rem);
    margin-right: 1rem;
    margin-bottom: .8rem;
}
.error-message {
    color: red;
    font-size: 0.6em;height: 10px;
    display: block;
}

.half-form-item input:invalid + .error-message,
.half-form-item textarea:invalid + .error-message {
    display: block;
}
.submit-btn{
    background: #FFFFFF; 
    border-radius: 23px;
    font-weight: 400;
    font-size: 23px;
    color: #1F2428;
    line-height: 0px;
    height: 2.8rem;
    width: 9.6rem;
    text-align: center;
    cursor: pointer;
}
.btn-box{width: 100%;margin-right: 1rem;}
.hero-video{margin-top: 2rem;width: 100%;height: auto;}
.hero-video video{width: 100%;height: auto;}
.copyright{border-top: 1px solid #fff;margin-top: .5rem;padding-top: 1rem;text-align: center;font-size: 14px;}
.copyright a{text-decoration: none;color: #fff;cursor: pointer;}

/* 响应式调整 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .solution-cards {
        grid-template-columns: repeat(2, 1fr);
        padding: 2rem 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

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

    .about-container {
        padding: 2rem 0;
    }
    .about-description{
        padding: 2rem 2rem 0 2rem;
    }
    .my-form{
        margin-left: 0;
    }
    .feature-item{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .foot-desc{
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .solution-cards {
        grid-template-columns: 1fr;
    }

    .about-content{
        width: 100%;
    }
    .my-form{
        margin-left: 0;
    }
    .feature-item{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .foot-desc{
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
}

/* 合作伙伴样式 */
.partners {
    padding: 4rem 5%;
    text-align: center;
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

/* 产品功能展示样式 */
.features {
    padding: 0 5% 4rem 5%;
    text-align: center;
    background-color: var(--text-light);
    color: var(--bg-dark);
}

.features h2 {
    color: var(--bg-dark);
}

.features > p {
    color: #666666;
    margin-bottom: 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* 页脚样式 */
footer {
    background-color: var(--card-bg);
    padding: 4rem 5%;
    /* margin-top: 4rem; */
}

.footer-content {
    /* display: flex;
    justify-content: space-between; */
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
    .about-content{
        width: 100%;
    }
}