:root {
    --primary-color: #1A2F4C;
    --secondary-color: #2B4466;
    --accent-color: #3E6A9C;
    --bg-light: #F7F9FC;
    --text-main: #2D3748;
    --text-muted: #4A5568;
    --white: #FFFFFF;
    --border-color: #E2E8F0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    
    --font-family: 'Noto Sans JP', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utilities */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
    border-radius: 8px;
}

.btn-block {
    display: flex;
    width: 100%;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    height: 80px;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-light);
    border-radius: 8px;
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 30px;
}

.header-phone {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.phone-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.phone-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background-color: var(--primary-color);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26,47,76,1) 0%, rgba(43,68,102,1) 50%, rgba(62,106,156,0.8) 100%);
    z-index: 1;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 40%),
                      radial-gradient(circle at 20% 80%, rgba(255,255,255,0.03) 0%, transparent 30%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 400;
    display: inline-block;
    margin-bottom: 15px;
    padding: 5px 15px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 30px;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 40px;
    color: rgba(255,255,255,0.9);
    max-width: 600px;
}

.hero-cta .btn {
    background-color: var(--white);
    color: var(--primary-color);
    font-weight: 700;
}

.hero-cta .btn:hover {
    background-color: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

p {
    letter-spacing: 0.03em;
}

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; transition-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; transition-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Strengths Section */
.strengths {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.strength-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.strength-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-color);
}

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(62, 106, 156, 0.1);
    color: var(--accent-color);
    border-radius: 50%;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    text-align: left;
}

/* Message Section */
.message {
    padding: 100px 0;
    background-color: var(--white);
}

.message-wrapper {
    display: flex;
    align-items: center;
    gap: 60px;
}

.message-image {
    flex: 1;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: var(--bg-light);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    border: 2px dashed var(--border-color);
}

.image-placeholder svg {
    margin-bottom: 10px;
}

.message-content {
    flex: 1;
}

.message-content .section-title {
    text-align: left;
}

.message-name {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
}

.message-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.9;
}

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

.cta-box {
    background-color: var(--white);
    border-radius: 16px;
    padding: 60px;
    box-shadow: var(--shadow-md);
    max-width: 900px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.cta-desc {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 50px;
}

.cta-phone-container {
    text-align: center;
    background-color: rgba(62, 106, 156, 0.05);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 50px;
    border: 1px solid rgba(62, 106, 156, 0.1);
}

.cta-phone-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cta-phone-huge {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.cta-hours {
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
}

.required {
    background-color: #E53E3E;
    color: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(62, 106, 156, 0.2);
    background-color: var(--white);
}

/* Footer */
.site-footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-layout {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 40px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-address, .footer-tel {
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
}

.footer-links ul {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: rgba(255,255,255,0.8);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-copyright {
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
    .strengths-grid {
        grid-template-columns: 1fr;
    }
    .message-wrapper {
        flex-direction: column;
    }
    .footer-layout {
        flex-direction: column;
        gap: 40px;
    }
    .footer-links ul {
        flex-direction: column;
        gap: 15px;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .cta-phone-huge {
        font-size: 2.5rem;
    }
}

@media (max-width: 600px) {
    .header-actions {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .cta-box {
        padding: 30px 20px;
    }
    .cta-phone-huge {
        font-size: 2rem;
    }
    .cta-phone-container {
        padding: 20px;
    }
}