/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
}

body {
    background: #f0f3f5;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 横幅图片样式 */
.banner {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

/* 主标题样式 */
h1 {
    text-align: center;
    color: #1a5b9e;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

/* 选项卡容器 */
.tab-container {
    margin-bottom: 2rem;
}

.tab-content{
    padding:20px;
    border: 2px solid #143b6c;
    border-radius: 12px;
    display: none;
}

.active{
    display: block;
}
/* 选项卡按钮 同一行 */
.tab-btn{
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
/* 选项卡按钮 */
.tab-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tab-button {
    background: #f0f3f5;
    color: #666;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.tab-button.active {
    background: white;
    color: #1a5b9e;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.08);
}

.query-section {
    background: white;
    border-radius: 0 12px 12px 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    display: none;
    margin-top: -1px; /* 消除选项卡按钮与内容区的间隙 */
}

/* 调整选项卡激活状态样式 */
.tab-button.active {
    background: white;
    color: #1a5b9e;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
    font-weight: bold;
}

.query-section.active {
    display: block;
}

h2 {
    color: #1a5b9e;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #e62129;
    padding-left: 1rem;
}

/* 表单通用样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.dual-input {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr 1fr;
}

input[type="text"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    border-color: #1a5b9e;
    outline: none;
    box-shadow: 0 0 0 3px rgba(26,91,158,0.1);
}

input::placeholder {
    color: #999;
}

/* 查询按钮样式 */
button {
    background: linear-gradient(135deg, #1a5b9e, #143b6c);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 1rem;
}

button:hover {
    background: linear-gradient(135deg, #143b6c, #1a5b9e);
    box-shadow: 0 4px 12px rgba(26,91,158,0.3);
}

/* 查询结果区域 */
#resultSection {
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
}

#certificateDetails {
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    margin-top: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    .dual-input {
        grid-template-columns: 1fr;
    }

    input[type="text"] {
        padding: 0.8rem;
    }

    button {
        padding: 0.8rem;
        font-size: 1rem;
    }
}

/* 表格通用样式 */
table {
    width: 100%;
    border-collapse: collapse; /* 合并边框 */
    margin-top: 1rem;
    background-color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 表头样式 */
th {
    background-color: #1a5b9e;
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: bold;
    border-bottom: 2px solid #143b6c;
}

/* 表格单元格样式 */
td {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

/* 表格行悬停效果 */
tr:hover {
    background-color: #f8f9fa;
}

/* 下载按钮样式 */
.download-btn {
    background-color: #28a745;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #218838;
}

/* 响应式表格 */
@media (max-width: 768px) {
    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 0.8rem;
    }

    .download-btn {
        padding: 0.3rem 0.8rem;
    }
}