/* ===== CSS Variables ===== */
    :root {
        --color-primary: #ffd400;
        --color-primary-dark: #e6bf00;
        --color-secondary: #2f323b;
        --color-accent: #cab479;
        --color-text: #333333;
        --color-text-light: #333333;
        --color-icon: #404040;
        --color-bg: #ffffff;
        --color-bg-light: #f9f9f9;
        --color-bg-dark: #111111;
        --font-sans: 'Noto Sans JP', sans-serif;
        --font-serif: 'Noto Serif JP', serif;
        --max-width: 1200px;
        --spacing-xs: 0.5rem;
        --spacing-sm: 1rem;
        --spacing-md: 2rem;
        --spacing-lg: 4rem;
        --spacing-xl: 6rem;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--color-text);
        background-color: var(--color-primary);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    /* ===== Typography ===== */
    h1, h2, h3, h4, h5, h6 {
        font-family: var(--font-sans);
        font-weight: 700;
        line-height: 1.4;
        color: var(--color-secondary);
    }

    h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
    h2 { font-size: clamp(1.6rem, 3.5vw, 2rem); }
    h3 { font-size: clamp(1.25rem, 3vw, 2rem); }

    p {
        margin-bottom: 1rem;
    }

    /* ===== Layout ===== */
    .container {
        width: 100%;
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 var(--spacing-md);
    }

    .section {
        padding: var(--spacing-xl) 0;
    }

    /* ===== Header ===== */
    .header {
        background: linear-gradient(135deg, #f5f2e4 0%, #faf8f0 100%);
        padding: var(--spacing-md) 0;
        position: relative;
    }

    .header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo img {
        max-height: 60px;
        width: auto;
    }

    .logo-text {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--color-secondary);
    }

    /* Mobile Menu */
    .nav-toggle {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: var(--spacing-xs);
        z-index: 1001;
    }

    .nav-toggle span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--color-secondary);
        margin: 5px 0;
        transition: 0.3s;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Mobile Navigation */
    .mobile-nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.95);
        z-index: 1000;
        justify-content: center;
        align-items: center;
    }

    .mobile-nav.active {
        display: flex;
    }

    .mobile-nav ul {
        list-style: none;
        text-align: center;
    }

    .mobile-nav li {
        margin: var(--spacing-md) 0;
    }

    .mobile-nav a {
        color: #ffffff;
        font-size: 1.5rem;
        font-weight: 500;
        padding: var(--spacing-sm) var(--spacing-md);
        display: block;
        transition: color 0.3s ease;
    }

    .mobile-nav a:hover {
        color: var(--color-primary);
    }

    /* ===== Hero Section ===== */
    .hero {
        background: var(--color-primary);
        padding: var(--spacing-xl) 0;
        text-align: center;
        min-height: 60vh;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        font-weight: 900;
        margin-bottom: var(--spacing-sm);
        color: var(--color-secondary);
    }

    .hero-content h2 {
        font-size: clamp(1rem, 2.5vw, 1.5rem);
        font-weight: 500;
        color: var(--color-text-light);
    }

    .hero-subtitle {
        font-size: clamp(1.25rem, 3vw, 1.75rem);
        margin-top: var(--spacing-lg);
        color: var(--color-secondary);
        font-weight: 700;
    }

    /* ===== Services Section ===== */
    .services {
        background: var(--color-bg);
        padding: var(--spacing-xl) 0;
    }

    .section-header {
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }

    .section-header h2 {
        font-size: clamp(1.75rem, 4vw, 2.5rem);
        margin-bottom: var(--spacing-sm);
        color: var(--color-secondary);
    }

    .section-header p {
        color: var(--color-text-light);
        font-size: 1.1rem;
    }

    .services-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-md);
    }

    .service-card {
        background: var(--color-bg);
        padding: var(--spacing-md);
        border-radius: 8px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        border: 1px solid #eee;
    }

    .service-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    /* Elegantline Icon Styles */
    .service-icon {
        font-size: 65px;
        margin-bottom: var(--spacing-sm);
        color: var(--color-icon);
        display: block;
        line-height: 1;
    }

    .service-card h3 {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-sm);
        color: var(--color-secondary);
    }

    .service-card p {
        color: var(--color-text-light);
        font-size: 0.95rem;
        text-align: left;
    }

    .service-link {
        display: inline-block;
        margin-top: var(--spacing-sm);
        color: var(--color-accent);
        font-weight: 500;
    }

    .service-link:hover {
        color: var(--color-primary-dark);
    }

    /* ===== About Section ===== */
    .about {
        background: var(--color-bg-light);
        padding: var(--spacing-xl) 0;
    }

    .about-content {
        max-width: 900px;
        margin: 0 auto;
    }

    .about-content h2 {
        text-align: center;
        margin-bottom: var(--spacing-lg);
        font-size: clamp(1.5rem, 3vw, 2rem);
    }

    .about-highlight {
        background: var(--color-bg);
        padding: var(--spacing-md);
        border-left: 4px solid var(--color-primary);
        margin: var(--spacing-md) 0;
        border-radius: 0 8px 8px 0;
    }

    .about-highlight h3 {
        color: var(--color-secondary);
        margin-bottom: var(--spacing-sm);
    }

    .about-feature {
        margin: var(--spacing-md) 0;
    }

    .about-feature h3 {
        color: var(--color-secondary);
        margin-bottom: var(--spacing-sm);
    }

    /* ===== Seminar CTA Section ===== */
    .seminar-cta {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
        align-items: center;
        margin-top: var(--spacing-lg);
    }

    .seminar-content h3 {
        font-size: clamp(1.25rem, 2.5vw, 1.75rem);
        line-height: 1.5;
        margin-bottom: var(--spacing-md);
    }

    .seminar-benefits {
        margin: var(--spacing-md) 0;
    }

    .seminar-benefits p {
        display: flex;
        align-items: flex-start;
        margin: var(--spacing-xs) 0;
        font-size: 0.95rem;
    }

    .seminar-benefits p::before {
        content: "✓";
        color: var(--color-accent);
        font-weight: bold;
        margin-right: var(--spacing-xs);
        flex-shrink: 0;
    }

    .seminar-image {
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    }

    .seminar-image img {
        width: 100%;
        height: auto;
        display: block;
    }

    .check-item {
        display: flex;
        align-items: flex-start;
        margin: var(--spacing-xs) 0;
    }

    .check-item::before {
        content: "○";
        color: var(--color-accent);
        margin-right: var(--spacing-xs);
        font-weight: bold;
    }

    .cross-item {
        display: flex;
        align-items: flex-start;
        margin: var(--spacing-xs) 0;
    }

    .cross-item::before {
        content: "×";
        color: #cc0000;
        margin-right: var(--spacing-xs);
        font-weight: bold;
    }

    /* ===== Company Section ===== */
    .company {
        background: var(--color-bg);
        padding: var(--spacing-xl) 0;
    }

    .company-table {
        width: 100%;
        max-width: 800px;
        margin: 0 auto;
        border-collapse: collapse;
    }

    .company-table tr {
        border-bottom: 1px solid #eee;
    }

    .company-table th,
    .company-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        text-align: left;
        vertical-align: top;
    }

    .company-table th {
        width: 30%;
        background: var(--color-bg-light);
        font-weight: 500;
        color: var(--color-secondary);
    }

    .company-table td {
        color: var(--color-text);
    }

    /* ===== Footer ===== */
    .footer {
        background: var(--color-bg-dark);
        color: #9c9c9c;
        padding: var(--spacing-md) 0;
        text-align: center;
    }

    .footer p {
        font-size: 0.875rem;
    }

    /* ===== Responsive ===== */
    @media screen and (max-width: 768px) {
        .services-grid {
            grid-template-columns: 1fr;
        }

        .company-table,
        .company-table tbody,
        .company-table tr,
        .company-table th,
        .company-table td {
            display: block;
            width: 100%;
        }

        .company-table tr {
            margin-bottom: var(--spacing-sm);
            border: 1px solid #eee;
            border-radius: 8px;
            overflow: hidden;
        }

        .company-table th {
            width: 100%;
            text-align: center;
            padding: var(--spacing-sm);
        }

        .company-table td {
            text-align: center;
            padding: var(--spacing-sm);
        }

        .nav-toggle {
            display: block;
        }

        .hero {
            min-height: 50vh;
            padding: var(--spacing-lg) 0;
        }

        .seminar-cta {
            grid-template-columns: 1fr;
            gap: var(--spacing-md);
        }

        .seminar-image {
            order: -1;
        }
    }

    /* ===== Animations ===== */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .fade-in {
        animation: fadeInUp 0.6s ease forwards;
    }

    .service-card {
        opacity: 0;
        animation: fadeInUp 0.6s ease forwards;
    }

    .service-card:nth-child(1) { animation-delay: 0.1s; }
    .service-card:nth-child(2) { animation-delay: 0.2s; }
    .service-card:nth-child(3) { animation-delay: 0.3s; }
    .service-card:nth-child(4) { animation-delay: 0.4s; }
    .service-card:nth-child(5) { animation-delay: 0.5s; }
    .service-card:nth-child(6) { animation-delay: 0.6s; }
    .service-card:nth-child(7) { animation-delay: 0.7s; }
    .service-card:nth-child(8) { animation-delay: 0.8s; }
    .service-card:nth-child(9) { animation-delay: 0.9s; }

    /* ===== Header CTA Button ===== */
    .cta-header {
        display: inline-block;
        background: #ed1a3d;
        color: #fff;
        text-decoration: none;
        border-radius: 999px;
        padding: 10px 20px;
        font-weight: 700;
        font-size: 0.9rem;
        white-space: nowrap;
        transition: transform 0.25s ease, filter 0.25s ease, box-shadow 0.25s ease;
        box-shadow: 0 4px 15px rgba(237, 26, 61, 0.3);
    }

    .cta-header:hover {
        transform: translateY(-2px);
        filter: brightness(1.1);
        box-shadow: 0 6px 20px rgba(237, 26, 61, 0.4);
    }

    /* ===== Contact Modal ===== */
    .modal-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 10000;
        padding: 20px;
    }

    .modal-backdrop.is-open {
        display: flex;
    }

    .modal {
        width: min(600px, 100%);
        background: #fff;
        color: #333;
        border-radius: 16px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
        overflow: hidden;
        animation: modalIn 0.3s ease;
    }

    @keyframes modalIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .modal__head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        background: var(--color-secondary);
        color: #fff;
    }

    .modal__title {
        margin: 0;
        font-weight: 800;
        font-size: 1.1rem;
    }

    .modal__close {
        appearance: none;
        border: 0;
        background: transparent;
        color: #fff;
        font-size: 28px;
        cursor: pointer;
        line-height: 1;
        padding: 0;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .modal__close:hover {
        opacity: 0.8;
    }

    .modal__body {
        padding: 24px;
    }

    .modal__row {
        margin: 0 0 16px;
    }

    .modal__row label {
        display: block;
        font-weight: 700;
        margin: 0 0 6px;
        font-size: 0.95rem;
    }

    .modal__row input[type="text"],
    .modal__row input[type="email"],
    .modal__row input[type="tel"],
    .modal__row textarea {
        width: 100%;
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 12px;
        font-size: 1rem;
        outline: none;
        transition: border-color 0.3s ease;
        font-family: inherit;
    }

    .modal__row input:focus,
    .modal__row textarea:focus {
        border-color: var(--color-primary);
    }

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

    .modal__actions {
        display: flex;
        gap: 10px;
        justify-content: flex-end;
        padding-top: 10px;
    }

    .btn {
        display: inline-block;
        border: 0;
        border-radius: 999px;
        padding: 12px 28px;
        font-weight: 800;
        cursor: pointer;
        font-size: 1rem;
        transition: transform 0.2s ease, filter 0.2s ease;
    }

    .btn--primary {
        background: #ed1a3d;
        color: #fff;
    }

    .btn--primary:hover {
        filter: brightness(1.1);
        transform: translateY(-1px);
    }

    .btn--ghost {
        background: #e5e7eb;
        color: #333;
    }

    .btn--ghost:hover {
        background: #d1d5db;
    }

    .required-mark {
        color: #ed1a3d;
        font-weight: 700;
    }

    @media screen and (max-width: 768px) {
        .cta-header {
            padding: 8px 14px;
            font-size: 0.8rem;
        }

        .modal__body {
            padding: 16px;
        }
    }
    .hero-warning {
color: #d32f2f;        /* 鮮やかな赤色 */
font-weight: 700;       /* 太字で強調 */
text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);  /* 微妙な影で読みやすく */
}