:root {
    --primary: #1a365d;
    --accent: #e67e22;
    --bg-light: #fdfcf9;
    --text: #333;
}
* { box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; line-height: 1.8; color: var(--text); margin: 0; background-color: #fff; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 4%; }

/* Typography */
h1, h2, h3 { font-family: 'Noto Serif JP', serif; color: var(--primary); }
h2 { font-size: 2rem; border-left: 5px solid var(--accent); padding-left: 15px; margin: 50px 0 30px; }

/* Header & Nav */
.site-header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; padding: 10px 0; }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo-link { display: flex; flex-direction: column; gap: 6px; text-decoration: none; }
.logo-img { display: block; height: auto; }
.logo-main { display: block; font-size: 1.4rem; font-weight: bold; color: var(--primary); text-decoration: none; }
.logo-sub { font-size: 0.75rem; color: #666; }
.main-nav ul { list-style: none; display: flex; gap: 20px; padding: 0; }
.main-nav a { text-decoration: none; color: var(--text); font-weight: bold; font-size: 0.95rem; }
.nav-cta a { background: var(--accent); color: #fff; padding: 8px 15px; border-radius: 4px; }
.header-tel-box { text-align: right; }
.header-tel { text-decoration: none; font-weight: 800; color: var(--primary); font-size: 1.05rem; }
.tel-label { display: block; font-size: 0.75rem; color: #666; }

/* Breadcrumb */
.breadcrumb { background: #f7f7f7; border-bottom: 1px solid #eee; }
.breadcrumb ol { display: flex; gap: 10px; list-style: none; padding: 12px 0; margin: 0; font-size: 0.85rem; }
.breadcrumb li::after { content: '›'; margin-left: 10px; color: #999; }
.breadcrumb li:last-child::after { content: ''; }
.breadcrumb a { color: var(--primary); text-decoration: none; }

/* Hero */
.hero { padding: 110px 0; background: linear-gradient(rgba(26,54,93,0.82), rgba(26,54,93,0.82)), var(--hero-bg, url('../images/work_hero.jpg')) center/cover; color: #fff; text-align: center; }
.hero h1 { color: #fff; font-size: 2.8rem; margin-bottom: 20px; }
.hero span { color: var(--accent); }

.hero-sub { padding: 90px 0; background: linear-gradient(rgba(26,54,93,0.82), rgba(26,54,93,0.82)), var(--hero-bg, url('../images/work_hero.jpg')) center/cover; color: #fff; }
.hero-sub h1 { color: #fff; font-size: 2.2rem; margin: 0 0 12px; }
.hero-sub p { margin: 0; opacity: 0.95; }

.hero .badge-row, .hero-sub .badge-row { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.badge { display: inline-block; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); padding: 6px 10px; border-radius: 999px; font-size: 0.85rem; }

/* Common Layout */
.section-padding { padding: 80px 0; }
.snuggle-box { background: var(--bg-light); padding: 40px; border-radius: 10px; margin-bottom: 40px; border: 1px solid #eee; }

.lead { font-size: 1.05rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 16px; border-radius: 8px; text-decoration: none; font-weight: 700; line-height: 1.2; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-outline { background: #fff; color: var(--primary); border: 2px solid rgba(26,54,93,0.35); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.25); }

/* Content blocks */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.card { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 22px; box-shadow: 0 4px 14px rgba(0,0,0,0.04); }
.card h3 { margin-top: 0; }
.muted { color: #666; }

.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { padding-left: 28px; position: relative; margin: 10px 0; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 900; }

.step-list { list-style: none; padding: 0; margin: 0; }
.step-list li { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 18px 18px 18px 54px; margin: 14px 0; position: relative; }
.step-list li::before { content: attr(data-step); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 800; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 22px; align-items: start; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group select { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; }
.form-legal { font-size: 0.85rem; text-align: center; margin: 0 0 16px; }
.contact-big a { font-size: 1.6rem; font-weight: 900; color: var(--primary); text-decoration: none; }
.small { font-size: 0.85rem; color: #666; }
.notice { border-radius: 10px; padding: 14px 16px; margin-bottom: 18px; }
.notice-success { background: #e7f7ee; border: 1px solid #bde9cf; }
.notice-error { background: #fff0f0; border: 1px solid #f2b7b7; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* Contact Form */
.contact-area { background: #f4f4f4; padding: 80px 0; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: bold; }
.form-group input, .form-group textarea { width: 100%; padding: 12px; border: 1px solid #ccc; border-radius: 4px; }
.submit-btn { background: var(--accent); color: #fff; border: none; padding: 20px 40px; font-size: 1.2rem; cursor: pointer; display: block; margin: 0 auto; border-radius: 5px; }

/* Footer */
.site-footer { background: var(--primary); color: #fff; padding: 50px 0 120px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.footer-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 14px; padding: 22px; }
.footer-title { color: #fff; border: none; padding: 0; margin: 0 0 10px; }
.footer-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.footer-cta .btn-ghost { color: #fff; }
.footer-links { list-style: none; padding: 0; margin: 16px 0 0; display: flex; gap: 12px; flex-wrap: wrap; }
.footer-links a { color: #fff; }
.footer-copy { text-align: center; margin-top: 28px; font-size: 0.85rem; opacity: 0.8; }
.map-embed iframe { width: 100%; height: 260px; border-radius: 12px; }
.floating-cv { position: fixed; bottom: 0; width: 100%; display: flex; z-index: 2000; }
.floating-cv a { flex: 1; text-align: center; padding: 20px; color: #fff; text-decoration: none; font-weight: bold; }
.cv-form { background: var(--accent); }
.cv-tel { background: #00529b; }
.cv-mail { background: #0f172a; }

@media (max-width: 768px) {
    .header-inner { flex-direction: column; text-align: center; }
    .main-nav { display: none; } /* ハンバーガーメニューの実装を推奨 */
    .footer-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}

/* ... (既存のCSSは省略) ... */

/* Header & Nav (モバイル用ハンバーガーメニュー追加) */
@media (max-width: 768px) {
    .header-inner { flex-direction: column; text-align: center; }
    .main-nav { display: none; /* 初期状態は非表示 */ position: absolute; top: 70px; left: 0; width: 100%; background: #fff; box-shadow: 0 5px 10px rgba(0,0,0,0.1); }
    .main-nav.active { display: block; } /* アクティブ時に表示 */
    .main-nav ul { flex-direction: column; }
    .main-nav li { border-bottom: 1px solid #eee; }
    .hamburger-menu { display: block; /* モバイルで表示 */ position: absolute; right: 20px; top: 20px; width: 30px; height: 20px; cursor: pointer; }
    .hamburger-menu span { display: block; height: 2px; background: var(--primary); margin-bottom: 5px; transition: 0.3s; }
    .hamburger-menu.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger-menu.active span:nth-child(2) { opacity: 0; }
    .hamburger-menu.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* アニメーションベーススタイル */
.fade-in, .slide-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in.is-visible, .slide-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.slide-in-right { /* 右からカットイン */
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.slide-in-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* スライドショー */
.slideshow { position: relative; width: 100%; height: 300px; overflow: hidden; margin: 40px 0; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.slideshow .slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; opacity: 0; transition: opacity 1s ease-in-out; display: flex; align-items: center; justify-content: center; color: #fff; text-shadow: 1px 1px 3px rgba(0,0,0,0.5); }
.slideshow .slide.active { opacity: 1; }
.slideshow .slide-content { background: rgba(0,0,0,0.5); padding: 20px 40px; border-radius: 8px; text-align: center; }

/* フローティングCVボタン */
.floating-cv { opacity: 0; transform: translateY(100%); transition: opacity 0.5s ease-out, transform 0.5s ease-out; }
.floating-cv.is-visible { opacity: 1; transform: translateY(0); }

/* Modal (Exit intent) */
.modal { position: fixed; inset: 0; display: none; z-index: 3000; }
.modal.is-open { display: block; }
.modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.55); }
.modal__panel { position: relative; max-width: 720px; margin: 10vh auto 0; background: #fff; border-radius: 16px; padding: 22px; box-shadow: 0 10px 30px rgba(0,0,0,0.25); }
.modal__close { position: absolute; right: 10px; top: 10px; width: 42px; height: 42px; border-radius: 999px; border: 1px solid #eee; background: #fff; font-size: 1.6rem; cursor: pointer; }
.modal__cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.modal__note { font-size: 0.85rem; color: #666; margin-top: 14px; }

/* FAQ */
.faq { margin-top: 22px; }
.faq details { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 14px 16px; margin: 12px 0; }
.faq summary { cursor: pointer; font-weight: 800; color: var(--primary); }
.faq p { margin: 10px 0 0; }

/* Tables (AEO / comparison) */
.table-wrap { overflow-x: auto; margin-top: 16px; }
.simple-table { width: 100%; border-collapse: collapse; min-width: 720px; background: #fff; border: 1px solid #eee; border-radius: 12px; overflow: hidden; }
.simple-table th, .simple-table td { padding: 14px 14px; border-bottom: 1px solid #eee; vertical-align: top; }
.simple-table th { background: #f7f7f7; color: #1a365d; font-weight: 800; text-align: left; }
.simple-table tr:last-child td { border-bottom: none; }
.simple-table td { color: #222; }

@media (max-width: 768px) {
  .simple-table { min-width: 640px; }
}