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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-top: 3rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0056b3;
    text-decoration: underline;
}

ul {
    list-style: none;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: #007bff;
    color: white;
    border: none;
}

.btn-primary:hover {
    background-color: #0069d9;
    text-decoration: none;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
    border: none;
}

.btn-secondary:hover {
    background-color: #5a6268;
    text-decoration: none;
}

.btn-success {
    background-color: #28a745;
    color: white;
    border: none;
}

.btn-success:hover {
    background-color: #218838;
    text-decoration: none;
}

.btn-info {
    background-color: #17a2b8;
    color: white;
    border: none;
}

.btn-info:hover {
    background-color: #138496;
    text-decoration: none;
}

.btn-warning {
    background-color: #ffc107;
    color: #212529;
    border: none;
}

.btn-warning:hover {
    background-color: #e0a800;
    text-decoration: none;
}

.btn-outline {
    background-color: transparent;
    color: #007bff;
    border: 1px solid #007bff;
}

.btn-outline:hover {
    background-color: #007bff;
    color: white;
    text-decoration: none;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
    border: none;
}

.btn-danger:hover {
    background-color: #c82333;
    text-decoration: none;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    color: #495057;
    background-color: #fff;
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

label {
    display: inline-block;
    margin-bottom: 0.5rem;
}

/* 卡片样式 */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: #fff;
    background-clip: border-box;
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: 0.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.card-body {
    flex: 1 1 auto;
    padding: 1.25rem;
}

.card-title {
    margin-bottom: 0.75rem;
}

/* 表格样式 */
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: #212529;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid #dee2e6;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid #dee2e6;
    background-color: #f8f9fa;
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.075);
}

/* 导航样式 */
.navbar {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    display: inline-block;
    padding-top: 0.3125rem;
    padding-bottom: 0.3125rem;
    margin-right: 1rem;
    font-size: 1.25rem;
    line-height: inherit;
    white-space: nowrap;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.navbar-nav .nav-link {
    padding-right: 0;
    padding-left: 0;
    color: #333;
}

.navbar-nav .nav-link:hover {
    color: #007bff;
}

.navbar-collapse {
    flex-basis: 100%;
    flex-grow: 1;
    align-items: center;
}

.navbar-toggler {
    padding: 0.25rem 0.75rem;
    font-size: 1.25rem;
    line-height: 1;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

@media (min-width: 768px) {
    .navbar-nav {
        flex-direction: row;
    }

    .navbar-nav .nav-link {
        padding-right: 0.5rem;
        padding-left: 0.5rem;
    }

    .navbar-collapse {
        display: flex !important;
        flex-basis: auto;
    }

    .navbar-toggler {
        display: none;
    }
}

/* 页眉样式 */
.hero {
    background: linear-gradient(135deg, #007bff 0%, #00b7ff 100%);
    color: white;
    padding: 5rem 0;
    margin-bottom: 3rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* 功能特性样式 */
.features {
    margin-bottom: 5rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.feature-card i {
    font-size: 3rem;
    color: #007bff;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .feature-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 如何使用样式 */
.how-it-works {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 300px;
    margin: 0 auto;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .steps {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* 定价样式 */
.pricing {
    margin-bottom: 5rem;
    text-align: center;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    border: 2px solid #007bff; /* 每个卡片统一蓝色边框 */
}

/* 确保所有卡片都显示蓝色边框（覆盖其他样式的影响） */
.pricing-card, .pricing-card.featured { border: 2px solid #007bff !important; }

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* 取消featured特效与徽章样式 */
.pricing-card.featured { border: 2px solid #007bff; transform: none; }
.featured-badge { display: none; }

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 1rem 0;
    color: #333;
}

.price span {
    font-size: 1rem;
    font-weight: normal;
    color: #666;
}

.pricing-card ul {
    margin: 1.5rem 0;
    text-align: left;
}

.pricing-card li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.pricing-card li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #007bff;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 页脚样式 */
.footer {
    background-color: #343a40;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-section a {
    color: #ced4da;
}

.footer-section a:hover {
    color: white;
    text-decoration: none;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 登录和注册页面样式 */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #007bff 0%, #00b7ff 100%);
}

.auth-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    margin: 2rem;
}

.auth-card h1 {
    text-align: center;
    color: #007bff;
    margin-bottom: 2rem;
}

.auth-footer {
    text-align: center;
    margin-top: 2rem;
}

/* 仪表板页面样式 */
.dashboard-container {
    display: flex;
    min-height: 100vh;
    background-color: #f5f7fa;
}

.sidebar {
    width: 250px;
    background-color: white;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    padding: 1.5rem 0;
}

.sidebar-header {
    padding: 0 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: #007bff;
}

.sidebar-nav {
    margin-bottom: 2rem;
}

.sidebar-nav ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-nav a {
    padding: 0.75rem 1.5rem;
    display: block;
    color: #333;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background-color: #007bff;
    color: white;
    text-decoration: none;
}

.main-content {
    flex: 1;
    padding: 2rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-title {
    margin: 0;
    font-size: 1.75rem;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.5rem;
    color: white;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.stat-label {
    color: #666;
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .dashboard-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 图表样式 */
.chart-container {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
}

/* 最高套餐用户感谢信息样式 */
.max-tier-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    color: #495057;
    font-weight: 500;
}

/* 套餐徽章样式 */
.tier-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.tier-free {
    background-color: #6c757d;
    color: white;
}

.tier-pro {
    background-color: #007bff;
    color: white;
}

.tier-enterprise {
    background-color: #28a745;
    color: white;
}

.chart-title {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

/* 响应式样式 */
@media (max-width: 767px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons a {
        width: 80%;
        margin-bottom: 0.5rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 15px;
    }
}

/* 插件卡片样式 */
.plugins {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.plugin-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.plugin-card {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #e9ecef;
    position: relative;
    overflow: hidden;
}

.plugin-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15);
    border-color: #007bff;
}

.plugin-icon {
    margin-bottom: 1.5rem;
}

.plugin-icon i {
    font-size: 3rem;
    color: #007bff;
    margin-bottom: 1rem;
}

.plugin-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.plugin-card p {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.plugin-features {
    list-style: none;
    margin: 1.5rem 0;
    text-align: left;
    padding: 0;
}

.plugin-features li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
    font-size: 0.9rem;
}

.plugin-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #007bff;
    font-weight: bold;
    font-size: 1rem;
}

.plugin-card .btn {
    margin-top: 1rem;
    padding: 0.75rem 2rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.plugin-card .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

@media (min-width: 768px) {
    .plugin-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .plugin-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 576px) {
    .plugin-card {
        padding: 1.5rem;
    }
    
    .plugin-icon i {
        font-size: 2.5rem;
    }
    
    .plugin-card h3 {
        font-size: 1.3rem;
    }
}

/* 关于我们页面样式 */
.breadcrumb {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.breadcrumb a {
    color: #007bff;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: #666;
}

/* 关于我们部分 */
.about-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.about-card {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #e9ecef;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.about-icon {
    margin-bottom: 1.5rem;
}

.about-icon i {
    font-size: 3rem;
    color: #007bff;
}

.about-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.about-card p {
    color: #666;
    line-height: 1.6;
}

/* 企业级服务部分 */
.services-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #e9ecef;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    border-color: #007bff;
}

.service-icon {
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 2.5rem;
    color: #007bff;
}

.service-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.service-card p {
    color: #666;
    line-height: 1.6;
    font-style: italic;
}

/* 常见问题部分 */
.faq-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.faq-item {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    border-left: 4px solid #007bff;
}

.faq-item h4 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-item p {
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* 客户评价部分 */
.testimonials-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-card {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    position: relative;
    border: 2px solid #e9ecef;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.quote-icon {
    margin-bottom: 1rem;
}

.quote-icon i {
    font-size: 2rem;
    color: #007bff;
    opacity: 0.7;
}

.testimonial-card p {
    color: #333;
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.6;
    margin: 0;
}

/* 核心团队部分 */
.team-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.team-member {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #e9ecef;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.member-avatar {
    margin-bottom: 1.5rem;
}

.member-avatar i {
    font-size: 3rem;
    color: #007bff;
}

.team-member h4 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.team-member p {
    color: #666;
    margin: 0;
    font-size: 0.9rem;
}

/* 联系信息部分 */
.contact-info-section {
    margin-bottom: 5rem;
    background-color: white;
    padding: 3rem 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    background-color: #f8f9fa;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #e9ecef;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.contact-icon {
    margin-bottom: 1.5rem;
}

.contact-icon i {
    font-size: 2.5rem;
    color: #007bff;
}

.contact-item h4 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.contact-item p {
    color: #666;
    margin: 0;
    font-size: 1rem;
}

/* 响应式设计 */
@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .about-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .contact-info-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 576px) {
    .about-card,
    .service-card,
    .testimonial-card,
    .team-member,
    .contact-item {
        padding: 1.5rem;
    }
    
    .about-icon i,
    .service-icon i,
    .member-avatar i,
    .contact-icon i {
        font-size: 2rem;
    }
    
    .about-card h3,
    .service-card h3 {
        font-size: 1.1rem;
    }
}