body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    background-color: #fcfcfc;
    color: #333333;
    line-height: 1.8;
    margin: 0;
    padding: 0;
}

#main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

#main-header {
    background-color: #ffffff;
    text-align: center;
    padding: 45px 15px 25px;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 40px;
}

.site-logo {
    margin: 0 auto 15px;
    max-width: 250px;
    width: 70%;
}

.site-logo img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.site-catchphrase {
    font-size: 1.05rem;
    color: #0c2340;
    font-weight: bold;
    margin: 0;
    letter-spacing: 0.05em;
}

.info-section,
.curriculum-section {
    background-color: #ffffff;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
    box-sizing: border-box;
}

.section-title {
    font-size: 1.5rem;
    color: #0c2340;
    border-left: 5px solid #0c2340;
    padding-left: 15px;
    margin-top: 0;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 1.05rem;
    color: #4a5568;
    margin: 0;
}

.highlight-text {
    color: #0c2340;
    font-weight: bold;
}

.mission-catch {
    font-weight: bold;
    color: #0c2340;
    font-size: 1.3rem;
    line-height: 1.5;
    letter-spacing: 0.03em;
    margin-bottom: 25px;
}

.mission-lead {
    font-size: 1rem;
    line-height: 1.7;
    color: #334155;
    margin-bottom: 30px;
}

.mission-subtitle {
    font-size: 1.15rem;
    font-weight: bold;
    color: #0c2340;
    text-align: center;
    margin: 35px 0 20px 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    border-top: 1px solid #e2e8f0;
    padding-top: 25px;
}

.mission-card {
    background-color: #f8fafc;
    padding: 20px;
    border-radius: 6px;
    box-sizing: border-box;
}

.card-sub {
    border-left: 4px solid #0c2340;
}

.card-child {
    border-left: 4px solid #cbd5e1;
}

.card-title {
    font-size: 1.15rem;
    font-weight: bold;
    color: #0c2340;
    margin: 0 0 12px 0;
}

.card-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #4a5568;
    margin: 0;
}

.advantage-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.advantage-item {
    background-color: #f8fafc;
    padding: 20px;
    margin-bottom: 16px;
    border-radius: 6px;
    border-left: 4px solid #0c2340;
    box-sizing: border-box;
}

.advantage-item:last-child {
    margin-bottom: 0;
}

.advantage-title {
    display: block;
    font-size: 1.1rem;
    font-weight: bold;
    color: #0c2340;
    margin-bottom: 8px;
}

.advantage-desc {
    display: block;
    font-size: 0.95rem;
    line-height: 1.7;
    color: #4a5568;
}

.curriculum-lead {
    font-size: 1rem;
    line-height: 1.7;
    color: #334155;
    margin-bottom: 25px;
}

.step-box {
    background-color: #f8fafc;
    padding: 25px;
    border-radius: 8px;
    border-top: 4px solid #0c2340;
    box-sizing: border-box;
    margin-bottom: 20px;
}

.step-badge {
    display: inline-block;
    background-color: #0c2340;
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 99px;
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.step-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: #0c2340;
    margin: 0 0 12px 0;
}

.step-desc {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #4a5568;
    margin: 0;
}

.curriculum-branch-text {
    text-align: center;
    font-weight: bold;
    color: #0c2340;
    font-size: 1rem;
    margin: 30px 0 20px 0;
    letter-spacing: 0.05em;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.route-card {
    background-color: #f8fafc;
    padding: 25px;
    border-radius: 8px;
    box-sizing: border-box;
}

.card-dev {
    border-top: 4px solid #cbd5e1;
}

.card-publish {
    border-top: 4px solid #0c2340;
}

.route-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.card-dev .route-badge {
    background-color: #cbd5e1;
    color: #0c2340;
}

.card-publish .route-badge {
    background-color: #0c2340;
    color: #ffffff;
}

.route-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #0c2340;
    margin: 0 0 20px 0;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 10px;
}

.route-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #4a5568;
    margin: 0;
}

.tech-list {
    margin: 15px 0 25px 0;
    background-color: #ffffff;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
}

.tech-item {
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    border-bottom: 1px dashed #e2e8f0;
}

.tech-item:last-child {
    border-bottom: none;
}

.tech-name {
    font-weight: bold;
    color: #0c2340;
    font-size: 0.95rem;
}

.tech-detail {
    font-size: 0.85rem;
    color: #64748b;
    line-height: 1.4;
    margin-top: 2px;
}

.route-target-box {
    background-color: #ffffff;
    padding: 15px;
    border-radius: 6px;
    margin-top: 15px;
    border-left: 3px solid #e2e8f0;
}

.target-label {
    font-size: 0.9rem;
    font-weight: bold;
    color: #0c2340;
    margin: 0 0 6px 0;
}

.price-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 10px;
}

.price-card {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 25px 20px;
    text-align: center;
    box-sizing: border-box;
}

.card-admission {
    border-top: 3px solid #cbd5e1;
}

.card-monthly {
    border-top: 5px solid #0c2340;
    background-color: #f0f4f8;
}

.price-card-title {
    font-size: 1.15rem;
    color: #0c2340;
    margin: 0 0 15px 0;
    font-weight: bold;
}

.price-amount {
    color: #0c2340;
    margin-bottom: 15px;
}

.price-num {
    font-size: 2.2rem;
    font-weight: bold;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    letter-spacing: -0.02em;
}

.price-unit {
    font-size: 0.9rem;
    font-weight: bold;
    margin-left: 2px;
}

.price-card-note {
    font-size: 0.85rem;
    line-height: 1.5;
    color: #64748b;
    margin: 0;
    text-align: left;
}

#section-contact {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
}

#contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 22px;
}

.form-label {
    display: block;
    font-weight: bold;
    color: #0c2340;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-input, 
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 15px;
    font-size: 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background-color: #ffffff;
    box-sizing: border-box;
    color: #333333;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230c2340'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-input:focus, 
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #0c2340;
    box-shadow: 0 0 0 3px rgba(12, 35, 64, 0.15);
}

.form-group-checkbox {
    background-color: #ffffff;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    margin-bottom: 25px;
}

.form-checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    margin: 3px 10px 0 0;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-text {
    font-size: 0.95rem;
    font-weight: bold;
    color: #0c2340;
    line-height: 1.5;
}

.submit-btn {
    display: block;
    width: 100%;
    background-color: #0c2340;
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: bold;
    padding: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(12, 35, 64, 0.1);
    transition: background-color 0.2s, transform 0.1s;
    margin-top: 10px;
}

.submit-btn:hover {
    background-color: #173b66;
}

.submit-btn:active {
    transform: translateY(2px);
    box-shadow: none;
}

@media (min-width: 550px) {
    .tech-item {
        flex-direction: row;
        align-items: center;
    }
    .tech-name {
        width: 170px;
        flex-shrink: 0;
    }
    .tech-detail {
        margin-top: 0;
        margin-left: 10px;
    }
}