/* Service Hero Section - モノクローム版 */
.service-hero {
    background: var(--color-white);
    color: var(--color-black);
    padding: 100px 0 80px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--color-black);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.service-icon {
    font-size: 4rem;
    margin-bottom: 30px;
    display: inline-block;
}

.service-hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    color: var(--color-black);
    letter-spacing: 0.02em;
}

.service-subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-weight: 600;
}

.service-tagline {
    font-size: 1.2rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-gray-dark);
}

/* Content Sections */
.service-overview,
.service-features,
.service-strengths,
.service-deliverables,
.service-target,
.service-period,
.service-technology,
.service-methodology,
.service-operation {
    padding: 100px 0;
}

.service-overview {
    background: var(--color-gray-light);
}

.service-features {
    background: var(--color-white);
}

.service-strengths {
    background: var(--color-gray-light);
}

.service-deliverables {
    background: var(--color-white);
}

.service-target {
    background: var(--color-gray-light);
}

.service-period {
    background: var(--color-white);
}

.service-technology {
    background: var(--color-white);
}

.service-methodology {
    background: var(--color-gray-light);
}

.service-operation {
    background: var(--color-white);
}

.lead-text {
    font-size: 1.15rem;
    line-height: 2;
    color: var(--color-black);
    margin-bottom: 0;
    font-weight: 300;
}

/* Feature Boxes */
.feature-box {
    background: var(--color-white);
    padding: 30px;
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid var(--color-black);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 4px 4px 0 var(--color-black);
}

.feature-icon-small {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.feature-box h3 {
    color: var(--color-black);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-box p {
    color: var(--color-black);
    line-height: 1.8;
    margin: 0;
    font-weight: 300;
}

/* Strength Items */
.strength-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.strength-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    background: var(--color-white);
    padding: 30px;
    border: 1px solid var(--color-black);
    transition: all 0.3s ease;
}

.strength-item:hover {
    box-shadow: 4px 4px 0 var(--color-black);
}

.strength-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-black);
    min-width: 60px;
    text-align: center;
    background: var(--color-gray-light);
    padding: 15px;
    border: 1px solid var(--color-black);
}

.strength-content h3 {
    color: var(--color-black);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.strength-content p {
    color: var(--color-black);
    line-height: 1.8;
    margin: 0;
    font-weight: 300;
}

/* Deliverables List */
.deliverables-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.deliverables-list li {
    padding: 15px 20px;
    background: var(--color-white);
    margin-bottom: 10px;
    border: 1px solid var(--color-black);
    border-left: 4px solid var(--color-black);
    color: var(--color-black);
    font-size: 1.05rem;
    transition: all 0.3s ease;
    font-weight: 300;
}

.deliverables-list li:hover {
    background: var(--color-gray-light);
    transform: translateX(5px);
}

/* Target Grid */
.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.target-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: var(--color-white);
    padding: 20px;
    border: 1px solid var(--color-black);
    transition: all 0.3s ease;
}

.target-item:hover {
    background: var(--color-gray-light);
    transform: translateX(5px);
}

.check-icon {
    font-size: 1.5rem;
    color: var(--color-black);
    font-weight: 700;
    min-width: 30px;
}

.target-item p {
    margin: 0;
    color: var(--color-black);
    line-height: 1.6;
    font-weight: 300;
}

/* Period Box */
.period-box {
    background: var(--color-white);
    padding: 50px;
    text-align: center;
    border: 2px solid var(--color-black);
}

.section-title-small {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-black);
    margin-bottom: 20px;
}

.period-text {
    font-size: 2rem;
    color: var(--color-black);
    margin-bottom: 20px;
}

.period-text strong {
    font-weight: 900;
}

.period-description {
    font-size: 1.05rem;
    color: var(--color-black);
    line-height: 1.8;
    margin: 0;
    font-weight: 300;
}

/* Technology Section */
.tech-category {
    margin-bottom: 35px;
}

.tech-category:last-child {
    margin-bottom: 0;
}

.tech-category h3 {
    color: var(--color-black);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-black);
}

.tech-category h4 {
    color: var(--color-black);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    margin-top: 20px;
}

.tech-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-black);
    font-weight: 300;
}

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

.tech-item {
    background: var(--color-gray-light);
    padding: 20px;
    border: 1px solid var(--color-black);
}

.tech-label {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-black);
    display: block;
    margin-bottom: 10px;
}

.tech-item p {
    color: var(--color-black);
    line-height: 1.6;
    margin: 0;
    font-weight: 300;
}

.tech-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.tech-list li {
    padding: 12px 0;
    color: var(--color-black);
    line-height: 1.8;
    border-bottom: 1px solid var(--color-gray-mid);
    font-weight: 300;
}

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

.tech-philosophy {
    background: var(--color-gray-light);
    padding: 30px;
    border: 1px solid var(--color-black);
    margin-bottom: 40px;
}

.tech-philosophy h3 {
    color: var(--color-black);
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 15px;
}

.tech-examples {
    background: var(--color-white);
    padding: 30px;
    border: 1px solid var(--color-black);
}

.tech-examples h3 {
    color: var(--color-black);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

.tech-examples .tech-category p {
    color: var(--color-black);
    line-height: 1.8;
    font-weight: 300;
}

/* Methodology Grid */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.methodology-item {
    background: var(--color-white);
    padding: 35px;
    border: 1px solid var(--color-black);
}

.methodology-item h3 {
    color: var(--color-black);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.methodology-item > p {
    color: var(--color-black);
    line-height: 1.8;
    margin-bottom: 20px;
    font-weight: 300;
}

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

.method-benefits li {
    padding: 8px 0 8px 25px;
    color: var(--color-black);
    position: relative;
    font-weight: 300;
}

.method-benefits li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-black);
    font-weight: 700;
}

/* Operation Grid */
.operation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.operation-item {
    background: var(--color-white);
    padding: 30px;
    border: 1px solid var(--color-black);
    text-align: center;
    transition: all 0.3s ease;
}

.operation-item:hover {
    background: var(--color-gray-light);
    transform: translateY(-5px);
    box-shadow: 4px 4px 0 var(--color-black);
}

.operation-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.operation-item h3 {
    color: var(--color-black);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.operation-item p {
    color: var(--color-black);
    line-height: 1.8;
    margin: 0;
    font-weight: 300;
}

/* Service CTA Section */
.service-cta {
    padding: 100px 0;
    background: var(--color-black);
}

.cta-box {
    text-align: center;
    color: var(--color-white);
}

.cta-box h2 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 30px;
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.cta-box p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    font-weight: 300;
}

.back-link {
    margin-top: 30px;
}

.back-link a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.back-link a:hover {
    border-bottom: 1px solid var(--color-white);
}

.note-text {
    color: var(--color-gray-dark);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-top: 20px;
    font-weight: 300;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .service-hero {
        padding: 80px 0 60px;
    }

    .service-hero h1 {
        font-size: 2.5rem;
    }

    .service-subtitle {
        font-size: 1.2rem;
    }

    .service-tagline {
        font-size: 1rem;
    }

    .service-icon {
        font-size: 3rem;
    }

    .service-overview,
    .service-features,
    .service-strengths,
    .service-deliverables,
    .service-target,
    .service-period,
    .service-technology,
    .service-methodology,
    .service-operation {
        padding: 80px 0;
    }

    .lead-text {
        font-size: 1rem;
    }

    .feature-box {
        padding: 25px;
    }

    .strength-item {
        flex-direction: column;
        gap: 15px;
        padding: 25px;
    }

    .strength-number {
        font-size: 1.5rem;
        min-width: auto;
        padding: 10px 15px;
    }

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

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

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

    .tech-highlight {
        grid-template-columns: 1fr;
    }

    .period-box {
        padding: 30px 20px;
    }

    .period-text {
        font-size: 1.5rem;
    }

    .cta-box h2 {
        font-size: 2rem;
    }

    .cta-box p {
        font-size: 1.1rem;
    }
}