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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
header {
    background-color: #00a870;
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.logo a {
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a:hover {
    color: #e6f7f0;
}

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

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

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 5px;
    transition: all 0.3s ease;
}

/* 搜索框样式 */
.search-box {
    display: flex;
    align-items: center;
}

.search-input {
    padding: 0.5rem;
    border: none;
    border-radius: 4px 0 0 4px;
    outline: none;
}

.search-btn {
    padding: 0.5rem 1rem;
    background-color: #008c5a;
    color: #fff;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background-color: #007a4a;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(rgba(0, 168, 112, 0.9), rgba(0, 168, 112, 0.8)), url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=Modern%20VPN%20technology%20concept%2C%20digital%20network%20connection%2C%20blue%20and%20green%20colors%2C%20professional%20photography&image_size=landscape_16_9') center/cover no-repeat;
    color: #fff;
    padding: 8rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0, 168, 112, 0.2), rgba(0, 120, 80, 0.2));
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    max-width: 800px;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.btn {
    display: inline-block;
    background-color: #fff;
    color: #00a870;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 特色功能区域 */
.features {
    padding: 80px 0;
    background-color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
}

.features-image {
    margin-top: 4rem;
    text-align: center;
}

.features-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    color: #00a870;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

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

/* 标签云样式 */
.tags {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.tag-cloud a {
    display: inline-block;
    padding: 8px 16px;
    background-color: #e8f5e8;
    color: #00a870;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 1px solid #c8e6c9;
}

.tag-cloud a:hover {
    background-color: #00a870;
    color: #fff;
    transform: translateY(-2px);
    border-color: #00a870;
}

/* 文章卡片样式 */
.articles {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background-color: #00a870;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.article-card {
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.article-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card:hover .article-image {
    transform: scale(1.05);
}

.article-image-container {
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
}

.article-category {
    position: absolute;
    top: 15px;
    left: 15px;
    display: inline-block;
    background-color: #00a870;
    color: #fff;
    padding: 0.4rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 2;
}

.article-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-title {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    line-height: 1.4;
    flex-shrink: 0;
}

.article-title a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-title a:hover {
    color: #00a870;
}

.article-excerpt {
    margin-bottom: 1.8rem;
    color: #666;
    line-height: 1.6;
    flex: 1;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #999;
    padding-top: 1rem;
    border-top: 1px solid #f0f0f0;
    flex-shrink: 0;
}

.article-author {
    font-weight: 500;
    transition: color 0.3s ease;
}

.article-card:hover .article-author {
    color: #00a870;
}

/* 常见问题区域 */
.faq-section {
    padding: 80px 0;
    background-color: #fff;
}

.faq-container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.faq-content {
    flex: 1;
}

.faq-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    background-color: #f8f9fa;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 500;
    color: #2c3e50;
}

.faq-question:hover {
    background-color: #e8f5e8;
}

.faq-question.active {
    background-color: #00a870;
    color: #fff;
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: #fff;
}

.faq-answer.active {
    padding: 1.5rem;
    max-height: 200px;
}

.faq-toggle {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-question.active .faq-toggle {
    transform: rotate(45deg);
}

/* 文章详情页样式 */
.single-article {
    padding: 4rem 0;
}

.single-article .container {
    max-width: 800px;
}

.single-article-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.single-article-content {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.single-article-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.single-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
    color: #999;
}

.single-article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.single-article-content h2 {
    margin: 2rem 0 1rem;
    color: #2c3e50;
}

/* 页面样式 */
.page-content {
    padding: 4rem 0;
}

.page-content .container {
    max-width: 800px;
}

.page-content h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.page-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* 联系表单样式 */
.contact-form {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group button {
    background-color: #00a870;
    color: #fff;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.form-group button:hover {
    background-color: #008c5a;
}

/* 页脚样式 */
footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: #00a870;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    color: #fff;
    transition: color 0.3s ease;
}

.footer-logo:hover {
    color: #00a870;
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #ecf0f1;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.3rem 0;
}

.footer-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #00a870;
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: #00a870;
}

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

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    color: #fff;
    font-size: 1.3rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    color: #00a870;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.footer-copyright {
    font-size: 0.9rem;
    color: #95a5a6;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    text-align: center;
    grid-column: 1 / -1;
}

.footer-copyright a {
    color: #00a870;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-copyright a:hover {
    color: #fff;
}

/* 轮链区域样式 */
.links-carousel {
    padding: 6rem 0;
    background-color: #f5f5f5;
}

.links-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.link-item {
    display: inline-block;
    background-color: #fff;
    color: #2c3e50;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

.link-item:hover {
    background-color: #00a870;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 168, 112, 0.3);
    border-color: #00a870;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #00a870;
        width: 100%;
        text-align: center;
        transition: 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 2rem 0;
    }

    .burger {
        display: block;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        order: 2;
        margin-top: 2rem;
    }

    .hero-image {
        order: 1;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .faq-container {
        flex-direction: column;
        text-align: center;
    }

    .faq-image {
        order: -1;
        margin-bottom: 2rem;
    }

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

    .single-article-image {
        height: 300px;
    }

    .single-article-content h1 {
        font-size: 2rem;
    }

    .page-content h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 4rem 0;
    }

    .articles {
        padding: 2rem 0;
    }

    .single-article {
        padding: 2rem 0;
    }

    .page-content {
        padding: 2rem 0;
    }

    .single-article-image {
        height: 200px;
    }

    .single-article-content {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

/* 体育平台自定义样式 */
:root {
    --primary-color: #ff6b35;
    --secondary-color: #1a365d;
    --accent-color: #2c5282;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-light: #f8f9fa;
    --bg-dark: #1d1f30;
    --bg-dark-accent: #3c1c4a;
    --white: #ffffff;
    --border-radius: 10px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

.sports-platform {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

/* 导航栏样式 */
#header-3 {
    background: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

#header-3.scrolled {
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.navbar-brand img {
    transition: var(--transition);
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.nav-link {
    position: relative;
    transition: var(--transition);
    font-weight: 500;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* 英雄区域样式 */
#hero-13 {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero13-content {
    z-index: 2;
    position: relative;
    animation: fadeInUp 1s ease-out;
}

.hero13-image {
    z-index: 1;
    position: relative;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.hero13-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 15px 30px rgba(0,0,0,0.25);
    transition: var(--transition);
}

.hero13-image:hover img {
    transform: scale(1.03);
}

.hero13-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero13-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

/* 波浪动画 */
.hero13-wave path {
    fill: var(--white);
}

/* 关于我们区域 */
#company-overview {
    padding: 80px 0;
}

.overview-img-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.overview-img-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(255,107,53,0.1), rgba(26,54,93,0.1));
    z-index: 1;
}

.overview-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.company-feature {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.company-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* 核心服务模块 */
#core-services {
    background: linear-gradient(135deg, var(--bg-light), #e9ecef);
    padding: 80px 0;
}

.services-heading {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.services-subheading {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

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

.service-card .service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

/* 荣誉与成就 */
#achievements {
    padding: 80px 0;
}

#achievements h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.achievement-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.achievement-card img {
    max-height: 120px;
    object-fit: contain;
    margin-bottom: 15px;
}

/* 常见问题 */
#faq-section {
    background: linear-gradient(135deg, #e9ecef, #dee2e6);
    padding: 80px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    text-align: center;
}

.faq-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    text-align: center;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    background: var(--white);
}

.faq-question {
    background: var(--white);
    padding: 20px;
    width: 100%;
    text-align: left;
    border: none;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question.active {
    background: var(--bg-light);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    transition: var(--transition);
}

.faq-question.active::after {
    content: '−';
}

.faq-answer {
    background: var(--white);
    padding: 0 20px 20px;
    display: none;
    animation: fadeIn 0.3s ease;
}

.faq-question.active + .faq-answer {
    display: block;
}

/* 焦点追踪 */
#news-focus {
    padding: 80px 0;
}

#news-focus h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.article-image-container {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image {
    transform: scale(1.1);
}

.article-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    z-index: 1;
}

.article-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.article-title a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.article-title a:hover {
    color: var(--primary-color);
}

.article-excerpt {
    color: var(--text-light);
    margin-bottom: 20px;
    flex: 1;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-lighter);
    padding-top: 15px;
    border-top: 1px solid #eee;
}

/* 安全连接 */
#trust-2 {
    background: linear-gradient(135deg, var(--bg-light), #e9ecef);
    padding: 80px 0;
}

#trust-2 h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.payment-icon {
    transition: var(--transition);
    padding: 20px;
    border-radius: var(--border-radius);
    background: var(--white);
    box-shadow: var(--box-shadow);
}

.payment-icon:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* 页脚 */
#footer-13 {
    color: var(--white);
    padding: 80px 0 30px;
    background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-accent));
    position: relative;
}

.footer-links {
    list-style: none;
    padding: 0;
}

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

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    position: relative;
}

.footer-links a:hover {
    color: var(--white);
    transform: translateX(5px);
}

.footer-links a::before {
    content: '→';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: var(--transition);
}

.footer-links a:hover::before {
    opacity: 1;
    left: -10px;
}

#footer-13 h6 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

#footer-13 p {
    color: rgba(255,255,255,0.7);
}

.footer-nav a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
    margin: 0 10px;
}

.footer-nav a:hover {
    color: var(--white);
}

/* App下载区域 */
#app-download {
    padding: 80px 0;
}

.app-section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    text-align: center;
}

.app-section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    text-align: center;
}

.app-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

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

.app-card img {
    max-height: 160px;
    object-fit: contain;
    margin-bottom: 20px;
    transition: var(--transition);
}

.app-card:hover img {
    transform: scale(1.05);
}

.app-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.app-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.download-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
}

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

/* 安全保障区域 */
#security-section {
    background: linear-gradient(135deg, var(--bg-light), #e9ecef);
    padding: 80px 0;
}

.security-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.security-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.security-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.security-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    #hero-13 {
        text-align: center;
        padding: 60px 0;
    }
    
    .hero13-content h1 {
        font-size: 2rem;
    }
    
    .hero13-content h2 {
        font-size: 1.25rem;
    }
    
    #company-overview,
    #core-services,
    #achievements,
    #faq-section,
    #news-focus,
    #trust-2,
    #footer-13,
    #app-download,
    #security-section {
        padding: 60px 0;
    }
    
    .services-heading,
    #achievements h2,
    .faq-title,
    #news-focus h2,
    #trust-2 h2,
    .app-section-title {
        font-size: 1.75rem;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero13-content h1 {
        font-size: 1.75rem;
    }
    
    .services-heading,
    #achievements h2,
    .faq-title,
    #news-focus h2,
    #trust-2 h2,
    .app-section-title {
        font-size: 1.5rem;
    }
    
    .service-card,
    .achievement-card,
    .app-card,
    .security-card {
        padding: 20px;
    }
}