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

body {
    font-family: 'Yu Gothic', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
    line-height: 1.7;
    color: #333;
    background: #f5f5f5;
    padding: 40px 20px;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: #fff;
    padding: 60px 50px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

.top-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-bottom: 10px;
}

.heading {
    font-size: 2.2em;
    font-weight: 700;
    margin-bottom: 25px;
    text-align: center;
    border-bottom: 1px solid #e0e0e0;
    color: #222;
    letter-spacing: -0.5px;
}

.about-image {
    width: 100%;
    height: auto;
    margin-bottom: 25px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-image:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.about-section p {
    font-size: 1.05em;
    margin-bottom: 18px;
    color: #444;
    line-height: 1.8;
}

.about-section a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.about-section a:hover {
    color: #0052a3;
    text-decoration: underline;
}

.planning-section h2 {
    display: block;
    font-size: 2.2em;
    font-weight: 700;
    margin-top: -12px;
    color: #222;
    letter-spacing: -0.5px;
}

.first-paragraph p {
    font-size: 1.05em;
    margin-bottom: 18px;
    color: #444;
    line-height: 1.8;
}

.planning-links {
    list-style: none;
    padding-left: 10px;
    border: 1px solid #aaaaaa;
    border-radius: 5px;
}

.planning-links li {
    margin-bottom: 14px;
    padding-left: 20px;
    position: relative;
}

.planning-links li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #666;
    font-size: 1.2em;
}

.planning-links a {
    color: #0066cc;
    text-decoration: none;
    font-size: 1em;
    transition: color 0.3s ease, padding-left 0.3s ease;
    display: inline-block;
}

.planning-links a:hover {
    color: #0052a3;
    padding-left: 5px;
}

.featured-section {
    margin-top: 60px;
    margin-bottom: 60px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.featured-section h2 {
    font-size: 2.5em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: #222;
    letter-spacing: -0.5px;
}

.featured-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 15px;
    align-items: start;
}

.featured-text p {
    font-size: 1.05em;
    margin-bottom: 18px;
    color: #444;
    line-height: 1.8;
}

.featured-text strong {
    color: #222;
    font-weight: 600;
}

.featured-text a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.featured-text a:hover {
    color: #0052a3;
    text-decoration: underline;
}

.featured-image {
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.featured-image:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.guidebooks-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid #e0e0e0;
}

.guidebooks-section h2 {
    font-size: 2.2em;
    font-weight: 700;
    margin-bottom: 35px;
    color: #222;
    letter-spacing: -0.5px;
}

.guidebooks-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: start;
}

.guidebooks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.guidebook-item {
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.guidebook-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.guidebooks-text p {
    font-size: 1.05em;
    margin-bottom: 18px;
    color: #444;
    line-height: 1.8;
}

.guidebooks-text a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.guidebooks-text a:hover {
    color: #0052a3;
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 968px) {
    .top-section {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .featured-content {
        grid-template-columns: 1fr;
    }

    .guidebooks-content {
        grid-template-columns: 1fr;
    }

    .guidebooks-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .featured-section h2 {
        font-size: 2em;
    }

    .about-section h2,
    .planning-section h2,
    .guidebooks-section h2 {
        font-size: 1.8em;
    }
}

@media (max-width: 768px) {
    body {
        padding: 20px 10px;
    }

    .container {
        padding: 30px 20px;
    }

    .guidebooks-grid {
        grid-template-columns: 1fr;
    }

    .featured-section h2 {
        font-size: 1.8em;
    }

    .about-section h2,
    .planning-section h2,
    .guidebooks-section h2 {
        font-size: 1.6em;
    }
}

.text-shadow-drop-bl {
    -webkit-animation: text-shadow-drop-bl 0.6s both;
    animation: text-shadow-drop-bl 0.6s both;
}