/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 控制台样式 */
.console-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1100;
}

.console-btn {
    background-color: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.console-btn:hover {
    background-color: #1557b0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.console-btn i {
    margin-right: 8px;
}

.console-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 10px;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    padding: 15px;
    min-width: 200px;
    display: none;
}

.console-menu.show {
    display: block;
}

.console-menu h3 {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f0f0f0;
}

.console-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.console-menu li {
    margin-bottom: 10px;
}

.console-menu a {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    padding: 8px 0;
    display: block;
    transition: color 0.3s ease;
}

.console-menu a:hover {
    color: #1a73e8;
}

/* 导航栏样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    display: flex;
    align-items: center;
}

.navbar-brand {
    flex-shrink: 0;
}

.navbar-brand h1 {
    color: #1a73e8;
    font-size: 24px;
    font-weight: bold;
    margin: 0;
}

.user-auth {
    position: absolute;
    top: 15px;
    right: 20px;
    z-index: 20;
}

.auth-link {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid #1a73e8;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.auth-link:hover {
    background-color: #1a73e8;
    color: #fff;
}

.navbar-menu {
    flex: 1;
    display: flex;
    justify-content: center;
    margin-left: 20px;
}

.navbar-nav {
    display: flex;
    list-style: none;
}

.navbar-nav li {
    margin: 0 15px;
    position: relative;
}

.navbar-nav a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease;
    display: block;
    padding: 10px 0;
}

.navbar-nav a:hover {
    color: #1a73e8;
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
}

.dropdown-toggle:after {
    content: '▼';
    font-size: 10px;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle:after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    padding: 10px 0;
    min-width: 200px;
    z-index: 1000;
    display: none;
    margin-top: 5px;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    padding: 10px 20px;
    color: #333;
    text-decoration: none;
    display: block;
    font-size: 14px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.dropdown-menu a:hover {
    background-color: #f5f5f5;
    color: #1a73e8;
}

.navbar-toggle {
    display: none;
    cursor: pointer;
    font-size: 24px;
    color: #333;
}

/* 轮播图样式 */
.carousel {
    position: relative;
    height: 500px;
    overflow: hidden;
    background-color: #f0f0f0;
}

.carousel-inner {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
}

.carousel-item {
    flex: 0 0 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
}

.carousel-item:nth-child(1) {
    background-color: #1a73e8;
}

.carousel-item:nth-child(2) {
    background-color: #34a853;
}

.carousel-item:nth-child(3) {
    background-color: #fbbc05;
}

.carousel-content {
    text-align: center;
    color: #fff;
    padding: 0 20px;
}

.carousel-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: bold;
}

.carousel-content p {
    font-size: 24px;
    margin-bottom: 30px;
}

/* 轮播图导航按钮样式 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-control:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.carousel-control.prev {
    left: 20px;
}

.carousel-control.next {
    right: 20px;
}

/* 轮播图指示器样式 */
.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background-color: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator:hover {
    border-color: #fff;
}

.indicator.active {
    background-color: #fff;
    border-color: #fff;
}

/* 核心业务模块样式 */
.services {
    padding: 80px 0;
    background-color: #fff;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #333;
    font-weight: bold;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-item {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.service-item h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
    font-weight: bold;
}

.service-item p {
    font-size: 16px;
    margin-bottom: 30px;
    color: #666;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #1a73e8;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #1557b0;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #1a73e8;
}

.footer-info p {
    font-size: 16px;
    color: #ccc;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #1a73e8;
}

.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #fff;
}

.footer-contact p {
    font-size: 16px;
    margin-bottom: 10px;
    color: #ccc;
}

.footer-contact i {
    margin-right: 10px;
    color: #1a73e8;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.compliance-info {
    margin-bottom: 20px;
    text-align: center;
}

.compliance-info p {
    margin-bottom: 10px;
    font-size: 14px;
    color: #ccc;
}

.compliance-info a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.compliance-info a:hover {
    color: #1a73e8;
}

.copyright {
    font-size: 14px;
    color: #999;
    text-align: center;
}

/* 高校合作与技术大赛模块样式 */
.cooperation {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.cooperation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.cooperation-item {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cooperation-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.cooperation-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.cooperation-item h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
    font-weight: bold;
}

.cooperation-item p {
    font-size: 16px;
    margin-bottom: 30px;
    color: #666;
    line-height: 1.6;
}

.cooperation-item ul {
    list-style: none;
}

.cooperation-item li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    font-size: 16px;
    color: #666;
}

.cooperation-item li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        padding: 20px;
    }

    .navbar-menu.active {
        display: block;
    }

    .navbar-nav {
        flex-direction: column;
    }

    .navbar-nav li {
        margin: 10px 0;
    }

    .navbar-toggle {
        display: block;
    }

    .carousel-content h2 {
        font-size: 32px;
    }

    .carousel-content p {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

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

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

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

/* 页面标题样式 */
.page-header {
    background-color: #1a73e8;
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-header p {
    font-size: 18px;
    margin: 0;
}

/* B2B页面样式 */
.b2b-content {
    padding: 60px 0;
    background-color: #fff;
}

.b2b-module {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
}

.b2b-module h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #333;
}

.module-description {
    font-size: 18px;
    margin-bottom: 30px;
    color: #666;
}

.module-features ul {
    list-style: none;
    margin-bottom: 30px;
}

.module-features li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.module-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

.b2b-advantages {
    margin-top: 60px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.advantage-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.advantage-item p {
    color: #666;
    line-height: 1.6;
}

/* 云店商城页面样式 */
.cloud-store-content {
    padding: 60px 0;
    background-color: #fff;
}

.cloud-store-module {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
}

.cloud-store-module h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #333;
}

/* 关于我们页面样式 */
.about-content {
    padding: 60px 0;
    background-color: #fff;
}

.about-section {
    margin-bottom: 60px;
}

.about-section h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #333;
    position: relative;
    padding-bottom: 15px;
}

.about-section h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: #1a73e8;
}

.about-section p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 20px;
}

.timeline {
    position: relative;
    margin-top: 40px;
}

.timeline:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #1a73e8;
}

.timeline-item {
    position: relative;
    padding-left: 40px;
    margin-bottom: 40px;
}

.timeline-date {
    position: absolute;
    left: -15px;
    top: 0;
    background-color: #1a73e8;
    color: #fff;
    padding: 5px 15px;
    border-radius: 15px;
    font-weight: bold;
}

.timeline-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.value-item {
    text-align: center;
    padding: 30px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.value-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.value-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.value-item p {
    color: #666;
    line-height: 1.6;
}

/* 合作伙伴部分样式 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100%, 1fr));
    gap: 40px;
}

.partner-item {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.partner-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.partner-content h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
    font-weight: bold;
}

.partner-content p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

.partner-content ul {
    list-style: none;
    margin-top: 20px;
    padding: 0;
    display: inline-block;
    text-align: left;
}

.partner-content li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    font-size: 16px;
    color: #666;
}

.partner-content li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

/* 产品页面通用样式 */
.product-section {
    margin-bottom: 60px;
}

.product-section h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #333;
    position: relative;
    padding-bottom: 15px;
}

.product-section h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: #1a73e8;
}

.product-section p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.6;
}

/* 特性网格样式 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
}

.feature-item p {
    color: #666;
    line-height: 1.6;
}

/* 优势列表样式 */
.advantages-list {
    list-style: none;
    margin-top: 30px;
    padding: 0;
}

.advantages-list li {
    padding: 15px 0;
    padding-left: 30px;
    position: relative;
    border-bottom: 1px solid #f0f0f0;
}

.advantages-list li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

/* 应用场景网格样式 */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.scenario-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.scenario-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
}

.scenario-item p {
    color: #666;
    line-height: 1.6;
}

/* 开发流程样式 */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.process-step {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
}

.step-number {
    font-size: 36px;
    font-weight: bold;
    color: rgba(26, 115, 232, 0.1);
    position: absolute;
    top: 10px;
    right: 20px;
    z-index: 1;
}

.process-step h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
    position: relative;
    z-index: 2;
}

.process-step p {
    color: #666;
    line-height: 1.6;
    position: relative;
    z-index: 2;
}

/* 案例网格样式 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.case-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
}

.case-item p {
    color: #666;
    line-height: 1.6;
}

/* 合作伙伴网格样式 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.partner-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.partner-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
}

.partner-item p {
    color: #666;
    line-height: 1.6;
}

/* 服务网格样式 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

/* 产品网格样式 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-bottom: 20px;
}

.product-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
    font-weight: bold;
}

.product-item p {
    color: #666;
    line-height: 1.6;
}

/* 联系我们页面样式 */
.contact-content {
    padding: 60px 0;
    background-color: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #333;
}

.info-item {
    display: flex;
    margin-bottom: 30px;
    align-items: flex-start;
}

.info-item i {
    font-size: 24px;
    color: #1a73e8;
    margin-right: 20px;
    margin-top: 5px;
}

.info-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.info-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.contact-form h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a73e8;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 数据看板页面样式 */
.dashboard-content {
    padding: 60px 0;
    background-color: #fff;
}

.dashboard-placeholder {
    background-color: #f9f9f9;
    padding: 60px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.placeholder-content h2 {
    font-size: 32px;
    margin-bottom: 30px;
    color: #333;
    font-weight: bold;
}

.placeholder-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #666;
    line-height: 1.6;
}

.placeholder-content ul {
    list-style: none;
    margin-bottom: 30px;
    padding: 0;
    display: inline-block;
    text-align: left;
}

.placeholder-content li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    font-size: 16px;
    color: #666;
}

.placeholder-content li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

.metrics-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.metric-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.metric-icon {
    font-size: 48px;
    color: #1a73e8;
    margin-right: 20px;
}

.metric-content h3 {
    font-size: 16px;
    color: #666;
    margin-bottom: 10px;
    font-weight: 500;
}

.metric-value {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.metric-change {
    font-size: 14px;
    font-weight: 500;
}

.metric-change.positive {
    color: #34a853;
}

.metric-change.negative {
    color: #ea4335;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
}

.chart-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.chart-card h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

.chart-container {
    position: relative;
    height: 300px;
}

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

    .chart-container {
        height: 250px;
    }

    .b2b-module,
    .cloud-store-module {
        padding: 30px;
    }

    .advantages-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 480px) {
    .carousel {
        height: 400px;
    }

    .carousel-content h2 {
        font-size: 24px;
    }

    .carousel-content p {
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .service-item {
        padding: 30px;
    }

    .footer {
        padding: 40px 0 20px;
    }

    .page-header h1 {
        font-size: 28px;
    }

    .page-header p {
        font-size: 16px;
    }

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

    .chart-card {
        padding: 20px;
    }

    .chart-container {
        height: 200px;
    }
}