* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    background: linear-gradient(to bottom, rgba(0, 166, 255, 0.85), rgba(0, 166, 255, 0.65));
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
    padding: 100px 20px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 80px; /* 给导航栏留出空间 */
}



/* 主要内容区域 */
.page-container {
    width: 100%;
    max-width: 1000px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 40px 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    text-align: center;
}

/* 按钮样式 */
.button-link {
    display: inline-block;
    padding: 12px 25px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid #007bff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: center;
    margin: 10px;
}

.button-link:hover {
    background-color: white;
    color: #007bff;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 123, 255, 0.3);
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 20px;
    width: 100%;
    max-width: 1000px;
    font-size: 0.95rem;
    color: white;
    background-color: rgba(0, 0, 0, 0.25);
    border-radius: 10px;
    margin-top: 20px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* 通用样式 */
.centered-heading {
    text-align: center;
    margin: 20px 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;

}