:root {
    --primary-color: #00A6B2;
    --secondary-color: #005EC9;
    --accent-color: #00C78E;
    --text-color: #333;
    --light-text: #666;
    --bg-color: #fff;
    --light-bg: #f5f7fa;
    --border-color: #e5e9f2;
    --gradient-primary: linear-gradient(129deg, #005EC9 0%, #00A6B2 52%, #00B2B0 74%, #00C78E 100%);
    --gradient-nav: linear-gradient(90deg, rgba(25,110,237,0.95) 0%, rgba(0,166,178,0.95) 100%);
}

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

body {
    font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

/* 导航栏样式 */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: var(--gradient-nav);
    padding: 0.5rem 0;
}

nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 1.2rem 5%;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 50px;
    width: auto;
    margin-left: 40px;
}

.logo h1 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 500;
    opacity: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: #fff;
    font-weight: 400;
    font-size: 1.1rem;
    padding: 0.5rem 0;
    position: relative;
    text-decoration: none;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    bottom: -2px;
    left: 0;
    transition: width 0.3s ease;
}

.nav-links a:hover:after {
    width: 100%;
}

/* 主要内容区域 */
main {
    margin-top: -35px;
}

/* Hero区域 */
.hero {
    position: relative;
    height: 700px;
    overflow: hidden;
    /* background: var(--gradient-primary); */
    background-image: url('images/banner.png');
    background-size: cover;
    background-position: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 5%;
    color: #fff;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.cta-button {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button.primary {
    background-color: #fff;
    color: var(--secondary-color);
}

.cta-button.secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* 移动端菜单按钮 */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--gradient-nav);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 1000;
    }

    .nav-links.active {
        display: flex;
    }

    .hero-content {
        text-align: center;
        align-items: center;
        padding: 0 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        opacity: 0;
    }
}

/* 内容区域样式 */
.content {
    display: flex;
    max-width: 1200px;
    margin: 5rem auto;
    padding: 0 1rem;
}

/* 侧边栏样式 */
.sidebar {
    width: 250px;
    padding-right: 2rem;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    padding: 1rem;
    border-left: 3px solid transparent;
    cursor: pointer;
}

/* .sidebar li:first-child {
    border-left-color: #00b38a;
    background-color: #f5f5f5;
} */

/* 主要内容区域样式 */
.main-content {
    flex: 1;
}

.main-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.laptop-preview {
    margin: 2rem 0;
    text-align: center;
}

.laptop-preview img {
    max-width: 100%;
    height: auto;
}

/* 业务应用卡片样式 */
.business-applications h3 {
    font-size: 1.5rem;
    margin: 2rem 0;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.application-card {
    padding: 1.5rem;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.application-card .icon {
    width: 50px;
    height: 50px;
    margin-bottom: 1rem;
}

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

.application-card h4 {
    color: #333;
    margin-bottom: 0.5rem;
}

/* DRGs部分样式 */
.drgs-section {
    background-color: #f5f5f5;
    padding: 2rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.drgs-section .icon {
    width: 50px;
    height: 50px;
    margin-bottom: 1rem;
}

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

.drgs-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.drgs-section p {
    color: #666;
    line-height: 1.8;
} 


.footer-bottom {
    margin-top: 3rem;
    padding: 1.5rem 0;
    background: var(--gradient-primary);
}

.footer-bottom-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.footer-logo {
    height: 30px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.footer-bottom p {
    color: white;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 智能核保页面特定样式 */
.sidebar li.active {
    border-left-color: var(--accent-color);
    background-color: var(--light-bg);
    color: var(--accent-color);
    font-weight: 500;
}

.features-section {
    margin-top: 4rem;
    background-color: var(--light-bg);
    padding: 3rem;
    border-radius: 12px;
}

.features-section h3 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

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

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.feature-content h4 {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: var(--light-text);
    font-size: 0.95rem;
    line-height: 1.6;
}

.application-card .icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-item {
        padding: 1rem;
    }

    .features-section {
        padding: 2rem;
        margin-top: 2rem;
    }
}

/* 产品展示区域 */
.list {
    padding: 100px 0;
    background: linear-gradient(135deg, #f6f9fc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(0, 166, 178, 0.2), transparent);
}

.list::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(0, 166, 178, 0.2), transparent);
}

.product-showcase {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.showcase-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1.5rem;
    font-weight: 600;
}

.showcase-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.showcase-subtitle {
    text-align: center;
    color: var(--light-text);
    font-size: 1.2rem;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    padding: 35px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover {
    transform: translateY(-16px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card h3 {
    font-size: 1.6rem;
    color: var(--text-color);
    margin-bottom: 1.2rem;
    font-weight: 600;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.product-desc {
    color: var(--light-text);
    margin-bottom: 1.8rem;
    flex-grow: 1;
    line-height: 1.7;
    font-size: 1.05rem;
}

.product-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 1.8rem;
}

.tag {
    background: linear-gradient(135deg, rgba(0, 166, 178, 0.1), rgba(0, 199, 142, 0.1));
    color: var(--primary-color);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 166, 178, 0.1);
}

.tag:hover {
    background: linear-gradient(135deg, rgba(0, 166, 178, 0.15), rgba(0, 199, 142, 0.15));
    transform: translateY(-2px);
}

.product-link {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-align: center;
    font-weight: 500;
    border: none;
    background-size: 200% auto;
}

.product-link:hover {
    background-position: right center;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 166, 178, 0.3);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .list {
        padding: 60px 0;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .showcase-title {
        font-size: 2rem;
    }

    .showcase-subtitle {
        font-size: 1rem;
        margin-bottom: 3rem;
    }

    .product-card {
        padding: 25px;
    }
}