body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #F8F8F4;
    color: #333;
    overflow-x: hidden;
}

h1, h2, h3, .font-serif {
    font-family: 'Noto Serif JP', serif;
}

/* ヘッダー */
header {
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    background-color: rgba(255,255,255,0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

#mobile-menu {
    transition: all 0.3s ease;
    z-index: 1000;
}

#mobile-menu:not(.hidden) {
    display: block !important;
}

#mobile-menu a {
    border-bottom: 1px solid #f3f4f6;
}

#mobile-menu a:last-child {
    border-bottom: none;
}

.nav-link {
    @apply relative text-sm font-medium text-gray-700 hover:text-amber-600 transition-colors duration-300;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #D97706;
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}
.contact-button {
     @apply ml-4 px-5 py-2.5 bg-amber-600 text-white text-sm font-medium rounded-md hover:bg-amber-700 transition-colors duration-300 shadow-md;
}

/* パンくずリスト */
.breadcrumb {
    @apply bg-slate-100 py-4;
}

/* ページヘッダー */
.page-header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    min-height: 300px;
    display: flex;
    align-items: center;
    position: relative;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('img/office_003.jpeg') no-repeat center center;
    background-size: cover;
    opacity: 0.3;
}

/* セクション共通スタイル */
.section-padding {
    padding-top: 6rem;
    padding-bottom: 5rem;
}
.section-title-jp {
    font-size: 2.5em;
    @apply text-4xl font-bold text-slate-800 mb-3 font-serif relative pb-4;
}
.section-title-jp::after {
    content: '';
    position: absolute;
    bottom: -0.3em;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #D97706;
}
.section-subtitle-en {
    font-size: 1em;
    @apply text-sm font-medium text-amber-600 tracking-widest mb-10;
}

/* アニメーション */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}
.animate-slide-in-left {
    opacity: 0;
    transform: translateX(-100px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.animate-slide-in-left.animated {
    opacity: 1;
    transform: translateX(0);
}
.animate-slide-in-right {
    opacity: 0;
    transform: translateX(100px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.animate-slide-in-right.animated {
    opacity: 1;
    transform: translateX(0);
}

    /* CTAボタン */
    .cta-button-main {
        @apply inline-block px-10 py-4 bg-amber-600 text-white text-lg font-semibold rounded-lg shadow-lg hover:bg-amber-700 transition-all duration-300 transform hover:scale-105;
    }

    .cta-button-main {
        padding: 1em;
        background: rgb(217 119 6 / var(--tw-bg-opacity, 1));
        color: #fff;
    }

    .cta-button-subtle {
        @apply inline-block px-8 py-3 border border-amber-600 text-amber-600 font-semibold rounded-lg hover:bg-amber-600 hover:text-white transition-all duration-300;
    }

/* フッター */
footer {
    background-color: #1e293b;
}