/* 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: #fff;
    color: #2c3e50;
    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: #2c3e50;
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

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

.nav-links a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #3498db;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #3498db;
    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: #2c3e50;
    margin: 5px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=Sports%20stadium%20with%20floodlights%20illuminated%2C%20crowd%20cheering%2C%20panoramic%20view%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(52, 152, 219, 0.2), rgba(231, 76, 60, 0.2));
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out;
}

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

.btn {
    display: inline-block;
    background-color: #3498db;
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

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

/* 文章卡片样式 */
.articles {
    padding: 6rem 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: #3498db;
    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;
}

.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;
}

.article-category {
    position: absolute;
    top: 15px;
    left: 15px;
    display: inline-block;
    background-color: #3498db;
    color: #fff;
    padding: 0.4rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 2;
}

.article-content {
    padding: 2rem;
}

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

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

.article-title a:hover {
    color: #3498db;
}

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

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

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

.article-card:hover .article-author {
    color: #3498db;
}

/* 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: #3498db;
    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: #2980b9;
}

/* 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: #3498db;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    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: #3498db;
}

.footer-links {
    display: flex;
    list-style: none;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links li {
    margin: 0 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #ecf0f1;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.footer-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #3498db;
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: #3498db;
}

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

.footer-social {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    margin: 0 0.8rem;
    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: #3498db;
    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;
}

.footer-copyright a {
    color: #3498db;
    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: #3498db;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    border-color: #3498db;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #2c3e50;
        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 h1 {
        font-size: 2.5rem;
    }

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

    .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;
    }
}