/* 首页样式 */

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

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
header {
    margin-bottom: 40px;
}

header h1 {
    color: #2c3e50;
    font-weight: 700;
    margin-bottom: 10px;
}

header p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* 加载动画样式 */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.loading .spinner-border {
    width: 4rem;
    height: 4rem;
    color: #3498db;
}

.loading p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* 错误提示样式 */
.error {
    max-width: 600px;
    margin: 40px auto;
    padding: 30px;
    border-radius: 8px;
}

/* 网址容器样式 */
.urls-container {
    margin: 40px 0;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.card-body {
    padding: 2rem;
    text-align: center;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #2c3e50;
    text-align: center;
}

/* 移除.card-text样式，因为不再显示网址 */

/* 按钮样式 */
.btn {
    border-radius: 4px;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #3498db;
    border-color: #3498db;
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-2px);
}

/* 卡片布局 */
.card-deck {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.card-deck .card {
    flex: 1 1 300px;
    max-width: 350px;
}

/* 底部样式 */
footer {
    margin-top: 60px;
    padding: 20px 0;
    border-top: 1px solid #e0e0e0;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }

    .card-deck .card {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .card-body {
        padding: 1.5rem;
    }
}

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

    .loading .spinner-border {
        width: 3rem;
        height: 3rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
    }
}