:root {
    --primary: #009A7E;
    /* PANTONE 325C */
    --primary-light: #4dc6ac;
    --primary-dark: #006e58;
    --secondary: #29b6f6;
    --accent: #ff9800;
    --light: #f8f9fa;
    --dark: #343a40;
    --success: #28a745;
    --text: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    color: var(--text);
    line-height: 1.6;
    background-color: #f9f9f9;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* banner区域样式 */
.page-header {
    padding: 60px 0 80px;
    text-align: center;
    background-image: url('https://t31.cngenial.cn/webfile/upload/2025/09-26/11-03-470094-384342368.jpg');
    width: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 551px;
    display: flex;
    justify-content: center;
    text-align: center;
    cursor: pointer;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.page-header .page-container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 15px;
    z-index: 2;
}

.page-header h1 {
    color: var(--primary);
    font-size: 2.8rem;
    margin-bottom: 20px;
    /*text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);*/
}

.page-header p {
    font-size: 1.2rem;
    max-width: 850px;
    opacity: 0.95;
    /*text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);*/
    margin: 0 auto;
}

/* .cta-button {
    background-color: var(--primary);
    color: white;
    padding: 14px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-block;
    font-size: 0.8rem;
    margin-top: 20vh;
    margin-left: 3vw;
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
} */

/* 应用介绍区域样式 */
.app-intro {
    padding: 10vw 0;
    background-color: white;
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.intro-text {
    flex: 1;
}

.intro-text h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.intro-text p {
    margin-bottom: 25px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.feature-list {
    margin: 25px 0;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.feature-icon {
    color: var(--primary);
    font-size: 1.5rem;
    margin-right: 15px;
    width: 30px;
    text-align: center;
}

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

.intro-image img {
    max-width: 100%;
    border-radius: 12px;
    /*box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);*/
}

/* 健康监测区域样式 */
.health-monitoring {
    padding: 90px 0;
    background-color: var(--light);
}

.monitoring-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.monitoring-text {
    flex: 1;
}

.monitoring-text h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.monitoring-text p {
    margin-bottom: 25px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.monitoring-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.monitoring-image img {
    max-width: 100%;
    border-radius: 12px;
    /*box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);*/
}

/* 功能特点区域样式 */
.features {
    padding: 90px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary);
}

.section-title p {
    max-width: 700px;
    margin: 20px auto 0;
    font-size: 1.2rem;
    color: var(--dark);
    opacity: 0.8;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
}

.feature-card .icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
    display: inline-block;
    height: 80px;
    width: 80px;
    line-height: 80px;
    border-radius: 50%;
    background: rgba(0, 154, 126, 0.1);
}

.feature-card h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* 应用截图区域样式 */
.screenshots {
    padding: 90px 0;
    background-color: var(--light);
}

.screenshots-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 50px;
}

.screenshot {
    width: 280px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    transition: all 0.3s;
}

.screenshot:hover {
    transform: translateY(-10px);
}

.screenshot img {
    width: 100%;
    display: block;
}

.screenshot-caption {
    padding: 20px;
    background: white;
    text-align: center;
}

.screenshot-caption h3 {
    color: var(--primary);
    margin-bottom: 10px;
}

/* 应用场景区域样式 */
.applications {
    padding: 90px 0;
    background-color: white;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.application-item {
    display: flex;
    gap: 25px;
}

.app-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.app-content h3 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

/* 下载区域样式 */
.download {
    padding: 90px 0;
    background: url('https://t31.cngenial.cn/webfile/upload/2025/09-23/17-42-370298-5907730.jpg') no-repeat center center;
    background-size: cover;
    text-align: center;
    position: relative;
    min-height: 387px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.download .container {
    position: relative;
    z-index: 2;
}

.download h2 {
    color: var(--primary);
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.download p {
    font-size: 1.1rem;
    margin: 0 auto;
    opacity: 0.9;
}

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

.download-btn {
    background: var(--primary);
    color: white;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
}

.download-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* 响应式设计 - 平板设备调整高度 */
@media (max-width: 992px) {
    .page-header {
        min-height: 400px;
        padding: 80px 0 60px;
    }

    .page-header h1 {
        font-size: 2.4rem;
    }

    .intro-content,
    .monitoring-content {
        flex-direction: column;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .applications-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .screenshots-container {
        gap: 20px;
    }

    .screenshot {
        width: 230px;
    }

    .download {
        min-height: 300px;
        padding: 70px 0;
    }
}

@media (max-width: 768px) {
    .page-header {
        min-height: 400px;
        padding: 80px 0;
        background-attachment: scroll;
        /* 移动端取消固定背景 */
    }

    .page-header h1 {
        font-size: 2.2rem;
        margin-bottom: 15px;
    }

    .page-header p {
        font-size: 1rem;
        padding: 0 15px;
    }

    /* .cta-button {
        padding: 8px 12px;
        border-radius: 50px;
        font-size: 0.6rem;
        margin-top: 12vh;
        margin-left: 40px;
    } */

    .intro-text h2 {
        font-size: 1.8rem;
    }

    .monitoring-text h2 {
        font-size: 1.8rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .download {
        min-height: 250px;
        padding: 50px 0;
    }

    /*.download h2 {
                font-size: 1.8rem;
            }*/

    .download p {
        font-size: 1rem;
        padding: 0 15px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .application-item {
        flex-direction: column;
        text-align: center;
    }

    .app-icon {
        margin: 0 auto;
    }

    .screenshot {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .page-header {
        background: url('https://t31.cngenial.cn/webfile/upload/2025/09-27/10-14-0704951872890264.jpg');
        background-size: contain;
        background-repeat: no-repeat;
        min-height: 56vw;
        padding: 60px 0;
        position: relative;
    }

    .page-header .page-container {
        position: absolute;
        top: 0;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }
}