* {
    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: #f5f5f5;
}

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

/* 头部样式 */
.header {
    background: #667eea;
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
}

.logo a {
    color: white;
    text-decoration: none;
}

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

.nav li {
    margin-left: 30px;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover,
.nav a.active {
    color: #ffd700;
}

/* 主要内容 */
.main {
    padding: 40px 0;
}

/* 搜索区域 */
.search-section {
    margin-bottom: 60px;
}

.search-card {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.search-card h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #667eea;
}

.search-options {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    gap: 30px;
}

.search-options label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 16px;
    cursor: pointer;
}

.search-input-group {
    display: flex;
    max-width: 1000px;
    margin: 0 auto;
}

.search-input-group input {
    flex: 1;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 25px 0 0 25px;
    outline: none;
    transition: border-color 0.3s;
}

.search-input-group input:focus {
    border-color: #667eea;
}

.search-input-group button {
    padding: 15px 30px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 0 25px 25px 0;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.search-input-group button:hover {
    transform: translateY(-2px);
}

/* 镜像网站部分 */
.mirror-section {
    margin-bottom: 60px;
}

.mirror-section h2 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
    text-align: center;
}

.section-description {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 16px;
}

.mirror-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.mirror-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.mirror-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.mirror-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    overflow: hidden;
}

.mirror-icon img {
    width: 80px;
    height: 80px;
    object-fit: cover;
}

.mirror-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.mirror-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.mirror-link {
    display: inline-block;
    padding: 10px 20px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.3s;
}

.mirror-link:hover {
    background: #4664eb;
}

/* 介绍部分 */
.intro-section {
    margin-bottom: 60px;
}

.intro-content {
    max-width: 100%;
    text-align: left;
}

.intro-text h2 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #667eea;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
}

.intro-text p {
    margin-bottom: 20px;
    color: #555;
    font-size: 16px;
    line-height: 1.7;
}

.intro-text ul {
    list-style: none;
    margin: 20px 0 25px;
    padding: 0;
    text-align: left;
}

.intro-text li {
    margin-bottom: 12px;
    color: #555;
    font-size: 16px;
    line-height: 1.5;
    position: relative;
    padding-left: 25px;
}

.intro-text li::before {
    content: "•";
    position: absolute;
    left: 10px;
    color: #667eea;
    font-weight: bold;
    font-size: 18px;
}


/* 注意事项部分 */
.notice-section {
    margin-bottom: 40px;
}

.notice-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

.notice-card {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 10px;
    padding: 30px;
    max-width: 100%;
    margin: 0;
}

.notice-card h3 {
    color: #856404;
    margin-bottom: 15px;
    font-size: 18px;
}

.notice-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.notice-card li {
    margin-bottom: 12px;
    color: #555;
    font-size: 16px;
    line-height: 1.5;
    position: relative;
    padding-left: 25px;
}

.notice-card li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
    font-size: 14px;
}

/* 页脚 */
.footer {
    background: #333;
    color: white;
    padding: 30px 0;
    text-align: center;
}

.footer-content p {
    margin-bottom: 10px;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav li {
        margin: 0 10px;
    }
    
    .search-card {
        padding: 30px 20px;
    }
    
    .search-input-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .search-input-group input,
    .search-input-group button {
        border-radius: 25px;
    }
    
    .mirror-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .intro-image img {
        margin: 0 auto;
    }
}

@media (max-width: 992px) {
    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .intro-image img {
        margin: 0 auto;
    }
}