:root {
    --primary: #0f4c81;
    --secondary: #f4f7fa;
    --text: #333333;
    --border: #d9e2ec;
    --accent: #e9f3ff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans","Segoe UI", Arial, sans-serif;
    line-height: 1.7;
    background: var(--secondary);
    color: var(--text);
}

.container {
    max-width: 1000px;
    margin: 50px auto;
    background: #ffffff;
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.page-header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 25px;
    border-bottom: 3px solid var(--primary);
}

.page-header h1 {
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.last-updated {
    color: #666;
    font-size: 0.95rem;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

h3 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: #1f2937;
}

p {
    margin-bottom: 15px;
}

ul {
    padding-left: 25px;
    margin-top: 10px;
}

li {
    margin-bottom: 8px;
}

.info-box {
    background: var(--accent);
    border-left: 5px solid var(--primary);
    padding: 18px;
    margin: 15px 0;
    border-radius: 6px;
}

.notice {
    background: #fff8e6;
    border-left: 5px solid #f5b700;
    padding: 18px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-weight: 500;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {

    .container {
        margin: 15px;
        padding: 25px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.3rem;
    }
}