/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Kaku Gothic Pro', 'ヒラギノ角ゴ Pro', 'Yu Gothic Medium', '游ゴシック Medium', YuGothic, '游ゴシック体', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
}

/* Header */
.header {
    background-color: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
}

.brand-name h1 {
    color: #1e40af;
    font-size: 1.75rem;
    margin: 0;
}

.brand-name h1 a {
    color: #1e40af;
    text-decoration: none;
}

.brand-name h1 a:hover {
    color: #f97316;
}

.tagline {
    color: #6b7280;
    font-size: 0.875rem;
    display: block;
}

.header-contact .phone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #1e40af;
    font-weight: 600;
    text-decoration: none;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 4rem 0;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #e5e7eb;
}

.page-header h1 {
    color: #1e40af;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.page-header p {
    color: #6b7280;
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    color: #1e40af;
    margin-bottom: 2rem;
    font-size: 1.75rem;
}

.content-block {
    background-color: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
}

.content-block p {
    color: #4b5563;
    margin-bottom: 1.5rem;
}

.content-block p:last-child {
    margin-bottom: 0;
}

.placeholder-text {
    color: #9ca3af;
    font-style: italic;
    text-align: center;
    padding: 3rem 2rem;
    background-color: #f3f4f6;
    border: 2px dashed #d1d5db;
    border-radius: 8px;
}

/* About Page Specific Styles */
.features-list {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    padding: 1.5rem;
    background-color: white;
    border-radius: 8px;
    border-left: 4px solid #f97316;
}

.feature-item h3 {
    color: #1e40af;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-item p {
    color: #4b5563;
    margin: 0;
}

.company-info {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

.info-item {
    display: flex;
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.info-item .label {
    min-width: 120px;
    font-weight: 600;
    color: #1e40af;
}

.info-item .value {
    color: #4b5563;
    flex: 1;
}

/* Content with image layout */
.content-with-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.content-text {
    flex: 1;
}

.content-image {
    flex: 1;
}

.content-image .image-placeholder {
    background-color: #e5e7eb;
    border: 2px dashed #9ca3af;
    border-radius: 8px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    font-weight: 500;
}

.content-main-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.svg-illustration {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.guarantee-list {
    list-style: none;
    margin: 1.5rem 0;
}

.guarantee-list li {
    padding: 0.5rem 0;
    color: #4b5563;
    position: relative;
    padding-left: 1.5rem;
}

.guarantee-list li:before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-brand h3 {
    color: white;
    margin: 0;
    font-size: 1.5rem;
}

.footer-brand p {
    color: #9ca3af;
    margin: 0;
    font-size: 1rem;
}

.footer-navigation {
    display: flex;
    justify-content: flex-end;
}

.footer-nav-section {
    display: grid;
    grid-template-columns: repeat(2, minmax(150px, 1fr));
    gap: 2rem;
}

.footer-column h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-column a:hover {
    color: #f97316;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .content-section h2 {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .footer-navigation {
        justify-content: center;
    }

    .footer-nav-section {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .info-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .info-item .label {
        min-width: auto;
        font-weight: 700;
    }

    .content-with-image {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .content-image .image-placeholder {
        height: 150px;
    }

    .content-main-image {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 1.75rem;
    }

    .content-section h2 {
        font-size: 1.25rem;
    }

    .main-content {
        padding: 2rem 0;
    }

    .content-main-image {
        height: 150px;
    }
}