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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

a {
    text-decoration: none;
    color: #0066cc;
    transition: color 0.3s ease;
}

a:hover {
    color: #004499;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

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

.logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #0066cc;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: #333;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: #0066cc;
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

nav ul li a:hover:after,
nav ul li a.active:after {
    width: 100%;
}

.download-btn {
    background-color: #0066cc;
    color: #fff !important;
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #004499;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 2px 0;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    padding-right: 50px;
}

.hero-image {
    flex: 1;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.hero h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #0066cc;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #555;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.primary-btn {
    background-color: #0066cc;
    color: #fff;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.primary-btn:hover {
    background-color: #004499;
}

.secondary-btn {
    background-color: transparent;
    color: #0066cc;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 500;
    border: 1px solid #0066cc;
    transition: all 0.3s ease;
}

.secondary-btn:hover {
    background-color: #0066cc;
    color: #fff;
}

/* 功能亮点样式 */
.features {
    padding: 80px 0;
    background-color: #fff;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 50px;
    color: #333;
}

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

.feature-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #e6f2ff;
    border-radius: 50%;
}

.feature-icon img {
    width: 40px;
    height: 40px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #0066cc;
}

.feature-card p {
    color: #666;
}

/* 应用优势样式 */
.advantages {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.advantages-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.advantage-content {
    flex: 1;
}

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

.advantage-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.advantage-item {
    margin-bottom: 25px;
}

.advantage-item h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #0066cc;
    display: flex;
    align-items: center;
}

.advantage-item h3:before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #0066cc;
    border-radius: 50%;
    margin-right: 10px;
}

/* 用户评价样式 */
.testimonials {
    padding: 80px 0;
    background-color: #fff;
}

.testimonials-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scrollbar-width: none;
}

.testimonials-slider::-webkit-scrollbar {
    display: none;
}

.testimonial-card {
    min-width: 350px;
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-content p {
    font-style: italic;
    color: #555;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.testimonial-author h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.testimonial-author p {
    font-size: 0.9rem;
    color: #777;
}

/* 下载区域样式 */
.download-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #0066cc 0%, #004499 100%);
    color: #fff;
}

.download-section .container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.download-content {
    flex: 1;
}

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

.download-section h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.download-section p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: 15px;
}

.download-btn {
    display: flex;
    align-items: center;
    background-color: #fff;
    color: #0066cc !important;
    padding: 12px 20px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

.download-btn img {
    width: 24px;
    height: 24px;
    margin-right: 10px;
}

/* 页脚样式 */
footer {
    background-color: #222;
    color: #fff;
    padding: 60px 0 20px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo img {
    width: 30px;
    height: 30px;
    margin-right: 10px;
}

.footer-logo h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: #0066cc;
    bottom: 0;
    left: 0;
}

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

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

.footer-column ul li a {
    color: #ccc;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: #fff;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-info li i {
    margin-right: 10px;
    color: #0066cc;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #0066cc;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #999;
}

/* 响应式样式 */
@media (max-width: 992px) {
    .hero .container,
    .advantages-container,
    .download-section .container {
        flex-direction: column;
    }

    .hero-content,
    .advantage-content,
    .download-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-image,
    .advantage-image,
    .download-image {
        text-align: center;
    }
}

@media (max-width: 768px) {
    nav {
        display: none;
    }

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

    .hero h2 {
        font-size: 2.2rem;
    }

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

    .testimonial-card {
        min-width: 280px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 50px 0;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

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

    .features,
    .advantages,
    .testimonials,
    .download-section {
        padding: 50px 0;
    }

    .hero-buttons,
    .download-buttons {
        flex-direction: column;
    }

    .testimonial-card {
        min-width: 100%;
    }
}

/* 图标样式 */
.icon-email:before {
    content: "✉";
}

.icon-phone:before {
    content: "☎";
}

.icon-address:before {
    content: "📍";
}

.icon-weixin:before {
    content: "微";
}

.icon-weibo:before {
    content: "微";
}

.icon-douyin:before {
    content: "抖";
}

/* QR占位符样式 */
.qr-placeholder {
    width: 150px;
    height: 150px;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin: 0 auto;
    border: 1px dashed #ccc;
}

.qr-placeholder p {
    text-align: center;
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

/* 应用界面展示样式 */
.interface-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.interface-feature {
    background-color: #fff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.interface-icon {
    width: 60px;
    height: 60px;
    background-color: #f0f7ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.interface-feature h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #0066cc;
}

.interface-feature p {
    color: #555;
    margin-bottom: 15px;
}

.interface-feature ul {
    padding-left: 20px;
    margin-bottom: 0;
}

.interface-feature ul li {
    margin-bottom: 8px;
    color: #666;
}

.feature-icon-home:before,
.feature-icon-search:before,
.feature-icon-detail:before,
.feature-icon-message:before {
    font-family: "Material Icons";
    font-size: 28px;
    color: #0066cc;
}

.feature-icon-home:before {
    content: "home";
}

.feature-icon-search:before {
    content: "search";
}

.feature-icon-detail:before {
    content: "info";
}

.feature-icon-message:before {
    content: "chat";
}

/* 特色卡片容器 */
.feature-card-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 特色卡片样式 */
.feature-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-card-icon {
    width: 80px;
    height: 80px;
    background-color: #f0f7ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-card-icon img {
    width: 40px;
    height: 40px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #0066cc;
}

.feature-card p {
    color: #555;
    font-size: 16px;
    line-height: 1.6;
}

/* 功能列表样式 */
.feature-list {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.feature-list li {
    margin-bottom: 10px;
    line-height: 1.5;
}

/* 用户头像占位符 */
.author-avatar {
    width: 50px;
    height: 50px;
    margin-right: 15px;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background-color: #0066cc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 20px;
    font-weight: bold;
}

/* 城市宝典卡片样式 */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.guide-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.guide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.guide-card-header {
    height: 120px;
    background: linear-gradient(135deg, #0066cc, #4da6ff);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.city-icon {
    width: 80px;
    height: 80px;
    background-color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #0066cc;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.guide-card-content {
    padding: 25px;
}

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

.guide-card-content p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.5;
}

.guide-highlights {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.guide-highlights li {
    margin-bottom: 5px;
    color: #555;
}

.guide-link {
    display: inline-block;
    color: #0066cc;
    font-weight: 500;
    text-decoration: none;
    position: relative;
}

.guide-link:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: #0066cc;
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.guide-link:hover:after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.guides-more {
    text-align: center;
    margin-top: 40px;
}

.more-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #0066cc;
    color: #fff;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.more-btn:hover {
    background-color: #004d99;
}

/* 宝典介绍样式 */
.guide-intro-content {
    display: flex;
    align-items: center;
    gap: 50px;
    margin: 50px 0;
}

.guide-intro-text {
    flex: 3;
}

.guide-intro-visual {
    flex: 2;
    display: flex;
    justify-content: center;
}

.guide-visual-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 300px;
}

.guide-card-icon {
    width: 80px;
    height: 80px;
    background-color: #f0f7ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.guide-card-icon img {
    width: 40px;
    height: 40px;
}

.guide-visual-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #0066cc;
}

.guide-visual-card p {
    color: #555;
    font-size: 16px;
    line-height: 1.6;
}

.guide-features {
    list-style-type: disc;
    padding-left: 20px;
    margin: 20px 0;
}

.guide-features li {
    margin-bottom: 10px;
}

/* 宝典示例样式 */
.guide-example {
    padding: 60px 0;
}

.example-tabs {
    display: flex;
    justify-content: center;
    margin: 30px 0;
    border-bottom: 1px solid #e0e0e0;
}

.tab {
    padding: 12px 25px;
    margin: 0 10px;
    cursor: pointer;
    font-weight: 500;
    color: #666;
    position: relative;
    transition: color 0.3s ease;
}

.tab:after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background-color: #0066cc;
    bottom: -1px;
    left: 0;
    transition: width 0.3s ease;
}

.tab.active {
    color: #0066cc;
}

.tab.active:after {
    width: 100%;
}

.tab-content {
    display: none;
    margin-top: 30px;
}

.tab-content.active {
    display: block;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.content-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.content-card-header {
    padding: 20px;
    background-color: #0066cc;
    color: #fff;
}

.beijing-color {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.content-card-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.content-card-body {
    padding: 20px;
}

.content-description {
    font-size: 16px;
    color: #555;
    margin-bottom: 15px;
    line-height: 1.5;
}

.content-details p {
    margin-bottom: 10px;
    color: #666;
    line-height: 1.6;
}

.content-details strong {
    color: #333;
}

.content-footer {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.content-tag {
    display: inline-block;
    padding: 5px 12px;
    background-color: #f0f7ff;
    color: #0066cc;
    border-radius: 20px;
    font-size: 14px;
}

.example-footer {
    text-align: center;
    margin-top: 40px;
}

.view-more-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #0066cc;
    color: #fff;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.view-more-btn:hover {
    background-color: #004d99;
}

/* 贡献部分样式 */
.contribute-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.contribute-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.contribute-text {
    flex: 3;
}

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

.contribute-text p {
    color: #555;
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.6;
}

.contribute-steps {
    margin: 30px 0;
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: #0066cc;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    margin-right: 15px;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #333;
}

.step-content p {
    color: #666;
    margin-bottom: 0;
    font-size: 15px;
}

.contribute-cta {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.contribute-visual {
    flex: 2;
    display: flex;
    justify-content: center;
}

.contribute-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
    max-width: 350px;
}

.card-header {
    background: linear-gradient(135deg, #0066cc, #4da6ff);
    color: #fff;
    padding: 20px;
    text-align: center;
}

.card-header h3 {
    margin: 0;
    font-size: 20px;
}

.card-body {
    padding: 25px;
}

.card-body p {
    color: #555;
    margin-bottom: 20px;
    line-height: 1.6;
}

.benefits-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.benefits-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #444;
    position: relative;
    padding-left: 30px;
}

.benefits-list li:last-child {
    border-bottom: none;
}

.benefits-list li:before {
    content: "✓";
    color: #0066cc;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 控制产品页面中大尺寸图片 */
.product-image img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 特定优化大尺寸图片 */
img[src="images/house-rental.jpg"],
img[src="images/stay-anywhere.jpg"],
img[src="images/swap-travel.jpg"],
img[src="images/local-guide.jpg"],
img[src="images/case1.jpg"],
img[src="images/case2.jpg"],
img[src="images/case3.jpg"] {
    width: 100%;
    max-width: 500px;
    height: auto;
    max-height: 350px;
    object-fit: cover;
    display: block;
}

/* 案例图片特别优化 */
.case-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.case-image img:hover {
    transform: scale(1.03);
}

/* 用户案例样式 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.case-item {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.case-content {
    padding: 20px;
}

.case-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #0066cc;
}

.case-content p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.case-link {
    display: inline-block;
    color: #0066cc;
    font-weight: 500;
    text-decoration: none;
    position: relative;
}

.case-link:after {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: #0066cc;
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.case-link:hover:after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* 产品内容样式 */
.product-content {
    display: flex;
    align-items: center;
    margin: 60px 0;
    gap: 40px;
}

.product-content.reverse {
    flex-direction: row-reverse;
}

.product-text {
    flex: 1;
}

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

.product-description {
    font-size: 18px;
    color: #555;
    margin-bottom: 25px;
    line-height: 1.6;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.feature-item h3 {
    font-size: 16px;
    color: #0066cc;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.product-benefits h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.product-benefits ul {
    padding-left: 20px;
}

.product-benefits li {
    margin-bottom: 8px;
    color: #555;
    line-height: 1.5;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .product-content {
        flex-direction: column;
    }
    
    .product-content.reverse {
        flex-direction: column;
    }
    
    .product-image {
        margin-top: 30px;
        order: -1;
    }
    
    .product-content.reverse .product-image {
        order: -1;
    }
}

/* 优化功能特色页图标 */
.overview-icon img,
.feature-card-icon img,
.innovation-icon img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    margin-bottom: 15px;
}

.overview-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 25px 15px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.overview-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

/* 优化关于我们页图标 */
.mission-point .point-icon img,
.value-icon img,
.contact-icon i {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.mission-point {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.point-icon {
    margin-right: 15px;
    flex-shrink: 0;
}

.point-text {
    flex: 1;
}

.value-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background-color: #fff;
    border-radius: 10px;
    padding: 30px 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

/* 优化功能详情区域 */
.feature-content {
    display: flex;
    align-items: center;
    gap: 40px;
    margin: 50px 0;
}

.feature-content.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 3;
}

.feature-image {
    flex: 2;
    display: flex;
    justify-content: center;
}

.feature-card {
    background-color: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 300px;
    transition: transform 0.3s ease;
}

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

.feature-card h3 {
    margin: 15px 0;
    color: #0066cc;
}

.feature-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #0066cc;
    font-weight: bold;
}

@media (max-width: 768px) {
    .feature-content {
        flex-direction: column;
    }
    
    .feature-content.reverse {
        flex-direction: column;
    }
    
    .feature-image {
        margin-top: 30px;
    }
}

/* 优化团队成员展示 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.team-member {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-photo {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.team-member:hover .member-photo img {
    transform: scale(1.05);
}

.team-member h3 {
    margin: 15px 15px 5px;
    font-size: 18px;
}

.member-title {
    color: #0066cc;
    font-weight: 500;
    margin: 0 15px 10px;
    font-size: 14px;
}

.member-bio {
    padding: 0 15px 15px;
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

/* 优化时间线样式 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 40px auto;
    padding: 20px 0;
}

.timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background-color: #0066cc;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-date {
    position: absolute;
    top: 0;
    left: 0;
    background-color: #0066cc;
    color: #fff;
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 14px;
    transform: translateX(-50%);
}

.timeline-content {
    margin-left: 80px;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.timeline-content h3 {
    margin-top: 0;
    color: #0066cc;
}

.timeline-content p {
    margin-bottom: 0;
    color: #666;
}

@media (max-width: 768px) {
    .timeline:before {
        left: 30px;
    }
    
    .timeline-date {
        left: 30px;
        transform: none;
    }
    
    .timeline-content {
        margin-left: 70px;
    }
}

/* 优化故事和使命愿景部分 */
.story-content,
.mission-vision-content {
    display: flex;
    gap: 40px;
    margin: 40px 0;
}

.story-text,
.mission-content,
.vision-content {
    flex: 1;
}

.story-image,
.vision-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.story-image img,
.vision-image img {
    max-width: 100%;
    max-height: 400px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    object-fit: cover;
}

@media (max-width: 768px) {
    .story-content,
    .mission-vision-content {
        flex-direction: column;
    }
    
    .story-image,
    .vision-image {
        margin-top: 30px;
        order: -1;
    }
}

/* 优化社会责任和加入我们部分 */
.responsibility-content,
.join-content {
    display: flex;
    gap: 40px;
    margin: 40px 0;
}

.responsibility-text,
.join-text {
    flex: 1;
}

.responsibility-image,
.join-image {
    flex: 1;
}

.responsibility-image img,
.join-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.responsibility-initiatives {
    margin-top: 30px;
}

.initiative {
    margin-bottom: 20px;
}

.initiative h3 {
    color: #0066cc;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .responsibility-content,
    .join-content {
        flex-direction: column;
    }
    
    .responsibility-image,
    .join-image {
        margin-top: 30px;
        order: -1;
    }
}

/* 技术创新部分样式 */
.innovation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.innovation-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.innovation-item:hover {
    transform: translateY(-5px);
}

.innovation-icon {
    margin-bottom: 15px;
}

.innovation-item h3 {
    color: #0066cc;
    margin-bottom: 10px;
}

.innovation-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

/* 应用界面展示部分 */
.interface-features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.interface-feature {
    background-color: #fff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.interface-icon {
    margin-bottom: 15px;
}

.interface-icon i {
    font-size: 32px;
    color: #0066cc;
}

.interface-feature h3 {
    color: #0066cc;
    margin-bottom: 10px;
}

.interface-feature p {
    color: #666;
    margin-bottom: 15px;
}

.interface-feature ul {
    padding-left: 20px;
}

.interface-feature li {
    margin-bottom: 5px;
    color: #555;
    font-size: 14px;
}

/* 联系我们部分样式 */
.contact-content {
    display: flex;
    gap: 40px;
    margin: 40px 0;
}

.contact-info {
    flex: 1;
}

.contact-form {
    flex: 1;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-icon {
    margin-right: 15px;
    width: 40px;
    height: 40px;
    background-color: #0066cc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: #fff;
    font-size: 20px;
}

.contact-text h3 {
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 16px;
}

.contact-text p {
    margin: 0;
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 14px;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background-color: #0066cc;
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: #0055aa;
}

@media (max-width: 768px) {
    .contact-content {
        flex-direction: column;
    }
    
    .contact-form {
        margin-top: 30px;
    }
}