* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 15px; }
body {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium", "Meiryo", -apple-system, sans-serif;
  color: #1a1a1a;
  line-height: 1.95;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a { color: #1a3a5c; text-decoration: none; }
a:hover { color: #c9a55b; }
img { max-width: 100%; display: block; height: auto; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

:root {
  --primary: #0a2b3e;       /* deep navy */
  --primary-d: #051620;
  --accent: #c9a55b;          /* gold */
  --accent-d: #a88542;
  --gray-bg: #f7f5f0;          /* warm gray */
  --gray-2:  #ebe6dc;
  --gray-line: #ddd6c9;
  --text: #1a1a1a;
  --text-l: #5a5a5a;
}

/* Header */
.site-header { background: #fff; position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--gray-line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { display: flex; align-items: center; gap: 14px; color: var(--primary); }
.logo:hover { text-decoration: none; }
.logo-mark { background: var(--primary); color: #fff; font-weight: 700; font-size: 22px; padding: 4px 14px; font-family: "Times New Roman", "Hiragino Mincho ProN", serif; }
.logo-block { display: flex; flex-direction: column; line-height: 1.3; }
.logo-text { font-weight: 700; font-size: 16px; letter-spacing: 0.08em; color: var(--primary); }
.logo-sub { font-size: 9px; letter-spacing: 0.25em; color: var(--text-l); margin-top: 3px; font-family: "Times New Roman", serif; }
.nav { display: flex; gap: 0; align-items: center; height: 100%; }
.nav a { display: flex; align-items: center; padding: 0 14px; height: 100%; font-size: 13px; font-weight: 600; color: var(--text); letter-spacing: 0.1em; }
.nav a:hover { color: var(--accent); }
.nav-cta { color: var(--primary); border-left: 1px solid var(--gray-line); }
.nav-cta:hover { background: var(--primary); color: #fff !important; }
.hamburger { display: none; }

/* Hero */
.hero { position: relative; height: 78vh; min-height: 540px; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero-img { position: absolute; inset: 0; background-size: cover; background-position: center; filter: grayscale(0.6) brightness(0.55) contrast(1.05); z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10,43,62,0.85), rgba(10,43,62,0.4)); z-index: 1; }
.hero-inner { position: relative; z-index: 2; max-width: 900px; padding: 0 24px; }
.hero-title { margin-bottom: 32px; }
.hero-mini { display: block; font-size: 12px; letter-spacing: 0.6em; color: var(--accent); margin-bottom: 24px; font-family: "Times New Roman", serif; font-weight: 400; }
.hero-main { display: block; font-size: 56px; font-weight: 700; line-height: 1.3; letter-spacing: 0.1em; }
.hero-lead { font-size: 17px; line-height: 2.1; margin-bottom: 36px; letter-spacing: 0.06em; opacity: 0.95; }
.hero-link { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.2em; color: #fff; padding: 12px 0; border-bottom: 1px solid var(--accent); transition: color .15s; }
.hero-link:hover { color: var(--accent); text-decoration: none; }

/* Section */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-en { display: block; font-size: 11px; letter-spacing: 0.6em; color: var(--accent); margin-bottom: 12px; font-weight: 600; font-family: "Times New Roman", serif; }
.section-title { font-size: 30px; font-weight: 700; color: var(--primary); letter-spacing: 0.18em; line-height: 1.4; position: relative; padding-bottom: 22px; }
.section-title::after { content: ""; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 36px; height: 1.5px; background: var(--accent); }
.section-note { text-align: center; color: var(--text-l); font-size: 15px; margin-bottom: 48px; }

/* About */
.about { background: #fff; }
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.about-lead { font-size: 26px; font-weight: 700; color: var(--primary); line-height: 1.7; margin-bottom: 24px; letter-spacing: 0.05em; padding-left: 20px; border-left: 2px solid var(--accent); }
.about-text p { font-size: 15px; line-height: 2.1; margin-bottom: 16px; color: var(--text); letter-spacing: 0.04em; }
.about-link { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: 0.2em; padding: 10px 0; border-bottom: 1px solid var(--accent); }
.about-link:hover { color: var(--accent); text-decoration: none; }
.about-img { aspect-ratio: 4/3; background-size: cover; background-position: center; filter: grayscale(0.4) contrast(1.05); }

/* Service */
.service { background: var(--gray-bg); }
.service-list { display: flex; flex-direction: column; gap: 40px; max-width: 1000px; margin: 0 auto; }
.service-item { display: grid; grid-template-columns: 320px 1fr; gap: 48px; align-items: center; background: #fff; padding: 0; overflow: hidden; }
.service-item:nth-child(even) { direction: rtl; }
.service-item:nth-child(even) > * { direction: ltr; }
.service-img { aspect-ratio: 4/3; background-size: cover; background-position: center; filter: grayscale(0.5); }
.service-body { padding: 36px 40px 36px 0; }
.service-item:nth-child(even) .service-body { padding: 36px 0 36px 40px; }
.service-num { display: block; font-size: 14px; letter-spacing: 0.4em; color: var(--accent); font-weight: 600; margin-bottom: 14px; font-family: "Times New Roman", serif; }
.service-body h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 18px; letter-spacing: 0.1em; padding-bottom: 14px; border-bottom: 1px solid var(--gray-line); }
.service-body p { font-size: 14px; line-height: 2; color: var(--text); letter-spacing: 0.03em; }

/* Works */
.works { background: #fff; }
.works-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px; }
.work { background: #fff; cursor: pointer; transition: all .25s; border-bottom: 2px solid transparent; }
.work:hover { transform: translateY(-3px); border-bottom-color: var(--accent); }
.work-img { aspect-ratio: 4/3; background-size: cover; background-position: center; filter: grayscale(0.4); transition: filter .3s; }
.work:hover .work-img { filter: grayscale(0); }
.work-body { padding: 20px 4px 8px; }
.work-body h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 6px; letter-spacing: 0.06em; }
.work-body p { font-size: 12.5px; color: var(--text-l); letter-spacing: 0.08em; }

/* Facility */
.facility { background: var(--gray-bg); }
.facility-table-wrap { max-width: 880px; margin: 0 auto; }
.facility-table { width: 100%; border-collapse: collapse; background: #fff; }
.facility-table th, .facility-table td { padding: 18px 22px; text-align: left; border-bottom: 1px solid var(--gray-line); vertical-align: top; font-size: 14px; }
.facility-table th { background: var(--primary); color: #fff; font-weight: 700; width: 30%; letter-spacing: 0.1em; }
.facility-table tr:last-child th, .facility-table tr:last-child td { border-bottom: none; }
.facility-table tr:nth-child(even) td { background: #faf8f3; }

/* Recruit */
.recruit { background: #fff; }
.recruit-lead { text-align: center; font-size: 18px; color: var(--primary); margin-bottom: 48px; letter-spacing: 0.05em; font-weight: 700; }
.recruit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.recruit-card { background: var(--gray-bg); padding: 36px 28px; border-top: 3px solid var(--accent); transition: transform .2s; }
.recruit-card:hover { transform: translateY(-3px); }
.recruit-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 14px; letter-spacing: 0.08em; padding-bottom: 12px; border-bottom: 1px solid var(--gray-line); }
.recruit-card p { font-size: 13.5px; line-height: 1.95; color: var(--text); }

/* News */
.news { background: var(--gray-bg); }
.news-list { list-style: none; max-width: 900px; margin: 0 auto; background: #fff; }
.news-list li { display: flex; align-items: center; gap: 22px; padding: 20px 28px; border-bottom: 1px solid var(--gray-line); font-size: 14px; }
.news-list li:last-child { border-bottom: none; }
.news-list time { color: var(--text-l); font-size: 13px; min-width: 95px; font-family: "Times New Roman", serif; letter-spacing: 0.05em; }
.news-list .cat { background: var(--primary); color: #fff; font-size: 11px; padding: 4px 14px; min-width: 70px; text-align: center; letter-spacing: 0.15em; font-weight: 600; }
.news-list a { font-size: 14px; color: var(--text); transition: color .15s; }
.news-list a:hover { color: var(--accent); }

/* Contact */
.contact { background: #fff; }
.contact-lead { text-align: center; font-size: 15px; line-height: 2; color: var(--text); margin-bottom: 48px; }
.contact-info { max-width: 700px; margin: 0 auto 48px; }
.contact-row { display: grid; grid-template-columns: 100px 1fr 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--gray-line); align-items: baseline; }
.contact-row span { font-size: 12px; color: var(--accent); letter-spacing: 0.2em; font-weight: 700; }
.contact-row strong { font-size: 16px; color: var(--primary); font-weight: 700; letter-spacing: 0.05em; }
.contact-row small { font-size: 12px; color: var(--text-l); }
.contact-cta { text-align: center; }
.btn { display: inline-block; padding: 16px 48px; font-size: 13px; font-weight: 700; letter-spacing: 0.3em; color: #fff; background: var(--primary); border: none; cursor: pointer; transition: all .15s; font-family: inherit; }
.btn:hover { background: var(--accent); color: #fff; text-decoration: none; }

/* Footer */
.site-footer { background: var(--primary); color: #b8c0c8; padding: 56px 0 0; font-size: 13px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-sub { color: var(--accent); }
.footer-brand p { font-size: 13px; line-height: 1.9; color: #b8c0c8; }
.footer-nav h5 { color: #fff; font-size: 13px; margin-bottom: 14px; letter-spacing: 0.2em; padding-bottom: 10px; border-bottom: 1px solid rgba(201,165,91,0.4); font-weight: 700; display: inline-block; }
.footer-nav a { display: block; padding: 5px 0; font-size: 13px; color: #b8c0c8; transition: color .15s; }
.footer-nav a:hover { color: var(--accent); text-decoration: none; }
.copyright { text-align: center; padding: 22px 0; border-top: 1px solid rgba(255,255,255,0.08); font-size: 11px; color: #6a7a85; letter-spacing: 0.2em; font-family: "Times New Roman", serif; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal.open { display: flex; }
.modal-overlay { position: absolute; inset: 0; background: rgba(10,43,62,0.88); backdrop-filter: blur(4px); cursor: pointer; }
.modal-content { position: relative; background: #fff; max-width: 900px; width: 100%; max-height: 90vh; display: grid; grid-template-columns: 1.2fr 1fr; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.4); }
.modal-close { position: absolute; top: 12px; right: 12px; width: 38px; height: 38px; background: rgba(255,255,255,0.95); border: none; font-size: 24px; cursor: pointer; color: var(--primary); border-radius: 50%; z-index: 2; }
.modal-close:hover { background: var(--accent); color: #fff; }
.modal-img { background: #000; }
.modal-img img { width: 100%; height: 100%; object-fit: cover; max-height: 90vh; filter: grayscale(0.3); }
.modal-body { padding: 40px 36px; overflow-y: auto; }
.modal-body h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--accent); letter-spacing: 0.08em; }
.modal-spec { font-size: 13px; color: var(--text-l); padding: 10px 14px; background: var(--gray-bg); margin-bottom: 22px; font-family: "Times New Roman", "Hiragino Mincho ProN", serif; letter-spacing: 0.05em; }
.modal-desc { font-size: 14px; line-height: 2; margin-bottom: 22px; letter-spacing: 0.03em; }
.modal-meta { display: flex; flex-direction: column; gap: 6px; padding-top: 18px; border-top: 1px solid var(--gray-line); }
.modal-meta span { font-size: 12px; color: var(--text-l); padding: 4px 0; letter-spacing: 0.05em; }
.modal-meta span::before { content: "■ "; color: var(--accent); font-size: 9px; }
.modal-content-form { grid-template-columns: 1fr; max-width: 660px; }
.form-body { padding: 44px 40px; }
.form-body h3 { font-size: 22px; font-weight: 700; color: var(--primary); text-align: center; margin-bottom: 10px; letter-spacing: 0.15em; }
.form-lead { text-align: center; font-size: 13px; color: var(--text-l); margin-bottom: 28px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 6px; letter-spacing: 0.05em; }
.req { background: var(--accent); color: #fff; font-size: 10px; font-weight: 700; padding: 1px 8px; margin-left: 6px; letter-spacing: 0.1em; }
.form-row input, .form-row select, .form-row textarea { width: 100%; padding: 11px 14px; font-size: 14px; border: 1px solid var(--gray-line); background: #fff; font-family: inherit; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--accent); background: #faf8f3; }
.form-row .error { border-color: #c1272d; background: #fff5f5; }
.form-row textarea { resize: vertical; min-height: 100px; line-height: 1.7; }
.form-row select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%23c9a55b' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-check { padding: 12px 14px; background: var(--gray-bg); }
.check-label { display: flex !important; align-items: center; gap: 10px; font-size: 13px !important; cursor: pointer; margin: 0 !important; }
.check-label input { width: 16px; height: 16px; accent-color: var(--accent); }
.form-actions { text-align: center; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--gray-line); }
.btn-submit { display: inline-block; padding: 14px 40px; font-size: 13px; font-weight: 700; letter-spacing: 0.3em; color: #fff; background: var(--primary); border: none; cursor: pointer; font-family: inherit; transition: background .15s; }
.btn-submit:hover { background: var(--accent); }
.form-success { display: none; text-align: center; padding: 28px 0 6px; }
.form-success .check-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 32px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.form-success h4 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 12px; letter-spacing: 0.1em; }
.form-success p { font-size: 13px; line-height: 1.9; margin-bottom: 22px; }

@media (max-width: 1024px) {
  .nav a { padding: 0 11px; font-size: 12px; }
  .recruit-grid { grid-template-columns: 1fr; }
  .works-list { grid-template-columns: 1fr; }
}
@media (max-width: 960px) {
  .nav { position: fixed; top: 80px; right: -100%; width: 80%; max-width: 320px; height: calc(100vh - 80px); background: #fff; flex-direction: column; padding: 0; transition: right .3s; align-items: stretch; box-shadow: -4px 0 16px rgba(0,0,0,0.1); overflow-y: auto; }
  .nav.open { right: 0; }
  .nav a { height: auto; padding: 18px 24px; border-bottom: 1px solid var(--gray-line); }
  .nav-cta { border-left: none; }
  .hamburger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
  .hamburger span { width: 24px; height: 2px; background: var(--primary); }
  .hero-main { font-size: 34px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .service-item { grid-template-columns: 1fr; }
  .service-item:nth-child(even) { direction: ltr; }
  .service-body { padding: 24px 24px 32px !important; }
  .footer-inner { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .section-title { font-size: 24px; }
  .contact-row { grid-template-columns: 80px 1fr; }
  .contact-row small { grid-column: 2; font-size: 11px; }
  .modal-content { grid-template-columns: 1fr; grid-template-rows: 240px 1fr; }
  .modal-img img { max-height: 240px; }
}
@media (max-width: 600px) {
  html { font-size: 14px; }
  .hero-main { font-size: 26px; }
  .hero-mini { font-size: 10px; letter-spacing: 0.4em; }
  .works-list { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
}