/* nautilus design works — ロゴの紺と黄色を基調にした、シンプルな会社サイト */
:root {
  --navy: #063a94;
  --navy-700: #052f78;
  --navy-900: #071a3e;
  --yellow: #ffd500;
  --ink: #1b2232;
  --muted: #5a6375;
  --line: #e2e7f0;
  --soft: #f3f6fb;
  --white: #fff;
  --radius: 12px;
  --wrap: 1080px;
  --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Yu Gothic", Meiryo, system-ui, sans-serif;
  --font-en: "Helvetica Neue", Arial, var(--font);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--ink);
  background: var(--white);
}
img { display: block; max-width: 100%; height: auto; }
picture { display: block; }
a { color: var(--navy); text-underline-offset: 3px; }
a:hover { color: var(--navy-700); }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }
h1, h2, h3 { margin: 0 0 16px; line-height: 1.5; font-weight: 700; letter-spacing: .04em; word-break: auto-phrase; text-wrap: pretty; }
h2 { font-size: clamp(22px, 2.6vw, 28px); }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
address { font-style: normal; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 820px; }
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; top: 16px; z-index: 100; padding: 8px 14px; background: var(--white); border-radius: 6px; }
.only-narrow { display: none; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.2) blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand img { width: 56px; height: 34px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-en { font-family: var(--font-en); font-size: 16px; font-weight: 700; letter-spacing: .06em; color: var(--navy); }
.brand-ja { font-size: 11px; letter-spacing: .08em; color: var(--muted); }
.nav ul { display: flex; gap: 4px; }
.nav a {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--ink);
  text-decoration: none;
  transition: background-color .2s, color .2s;
}
.nav a:hover { background: var(--soft); color: var(--navy); }
.nav a[aria-current="page"] { color: var(--navy); font-weight: 700; }
.nav a.nav-cta { background: var(--navy); color: var(--white); }
.nav a.nav-cta:hover { background: var(--navy-700); color: var(--white); }

/* ---------- トップの絵 ---------- */
.hero { background: var(--navy-900); }
.hero-title { margin: 0; }
.hero img { width: 100%; aspect-ratio: 2400 / 1208; }

/* ---------- セクション ---------- */
.section { padding: 80px 0; }
.section.soft { background: var(--soft); }
.kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--navy);
}
.kicker::before { content: ""; width: 24px; height: 3px; border-radius: 2px; background: var(--yellow); }
.kicker-light { justify-content: center; color: #dfe7f7; }
.lead { font-size: clamp(21px, 2.8vw, 30px); line-height: 1.6; }
.intro { max-width: 880px; }
.note { font-size: 14px; color: var(--muted); }

/* ---------- 案内カード ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: 100%;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-2px); border-color: #c8d3e8; box-shadow: 0 12px 28px rgba(6, 58, 148, .10); color: var(--ink); }
.card-en { font-family: var(--font-en); font-size: 24px; font-weight: 700; letter-spacing: .06em; color: var(--navy); }
.card-ja { font-size: 14px; color: var(--muted); }
.card-arrow { position: absolute; right: 26px; bottom: 26px; font-size: 20px; color: var(--navy); transition: transform .2s; }
.card:hover .card-arrow { transform: translateX(4px); }

/* ---------- お知らせ ---------- */
.news-wrap { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
.news { border-top: 1px solid var(--line); }
.news li { display: flex; gap: 28px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.news time { flex: none; min-width: 96px; font-family: var(--font-en); color: var(--muted); letter-spacing: .06em; }

/* ---------- お問い合わせへの誘い ---------- */
.cta {
  padding: 72px 0;
  text-align: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-900) 100%);
}
.cta h2 { margin-bottom: 28px; font-size: clamp(20px, 2.6vw, 26px); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 220px;
  padding: 15px 32px;
  border: 0;
  border-radius: 999px;
  background: var(--yellow);
  color: var(--navy-900);
  font: inherit;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s, box-shadow .2s, background-color .2s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 0, 0, .18); color: var(--navy-900); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--navy-700); color: var(--white); }
.btn[disabled] { opacity: .6; cursor: wait; transform: none; box-shadow: none; }

/* ---------- 下層ページの見出し ---------- */
.page-head { position: relative; height: 240px; overflow: hidden; background: var(--navy-900); color: var(--white); }
.page-head img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.page-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 26, 62, .72) 0%, rgba(7, 26, 62, .35) 45%, rgba(7, 26, 62, 0) 75%);
}
.page-head-text { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: center; height: 100%; }
.page-head h1 { margin: 0; font-family: var(--font-en); font-size: clamp(34px, 5vw, 50px); letter-spacing: .08em; line-height: 1.2; }
.page-head p { margin: 6px 0 0; font-size: 15px; letter-spacing: .12em; opacity: .92; }

/* ---------- サービス ---------- */
.split { display: grid; grid-template-columns: 1fr 480px; gap: 48px; align-items: center; }
.split-media img { width: 100%; border-radius: var(--radius); box-shadow: 0 16px 40px rgba(7, 26, 62, .18); }
.steps { display: grid; gap: 16px; margin-top: 8px; }
.steps > li,
.steps-short > li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.step-no { font-family: var(--font-en); font-size: 30px; font-weight: 700; line-height: 1.1; color: var(--navy); }
.steps h3 { margin-bottom: 6px; }
.steps p { font-size: 15px; color: var(--muted); }
.steps-short { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
.steps-short > li { grid-template-columns: auto 1fr; align-items: center; gap: 14px; padding: 20px 22px; }
.steps-short .step-no { font-size: 24px; }
.steps-short h3 { margin: 0; font-size: 16px; }

/* ---------- 実績 ---------- */
.clients { columns: 3 260px; column-gap: 40px; margin-top: 8px; border-top: 1px solid var(--line); }
.clients li { break-inside: avoid; padding: 12px 2px; border-bottom: 1px solid var(--line); }
.clients-more { margin-top: 24px; font-weight: 700; color: var(--navy); }

/* ---------- 会社概要 ---------- */
.info { display: grid; grid-template-columns: 180px 1fr; margin: 0; border-top: 2px solid var(--navy); }
.info dt, .info dd { margin: 0; padding: 20px 8px; border-bottom: 1px solid var(--line); }
.info dt { font-weight: 700; color: var(--navy); }
.info .en { font-family: var(--font-en); font-size: 14px; color: var(--muted); }

/* ---------- お問い合わせ ---------- */
.contact-lead { font-size: 17px; }
.notice {
  margin: 20px 0 32px;
  padding: 14px 18px;
  border-left: 4px solid var(--yellow);
  border-radius: 0 8px 8px 0;
  background: #fffbe6;
  font-size: 14px;
}
.form { display: grid; gap: 26px; }
.field { margin: 0; padding: 0; border: 0; min-width: 0; }
.field > label, .field > legend { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; padding: 0; font-weight: 700; }
.req, .opt { padding: 1px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; letter-spacing: .06em; }
.req { background: #b3261e; color: var(--white); }
.opt { background: var(--soft); color: var(--muted); }
.form input[type="text"], .form input[type="email"], .form input[type="tel"], .form textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #c6cfde;
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  line-height: 1.6;
}
.form input:focus, .form textarea:focus { outline: 3px solid rgba(6, 58, 148, .18); outline-offset: 0; border-color: var(--navy); }
.form textarea { min-height: 220px; resize: vertical; }
.choices { display: flex; flex-wrap: wrap; gap: 10px; }
.choice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid #c6cfde;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color .2s, background-color .2s;
}
.choice:hover { border-color: var(--navy); }
.choice:has(input:checked) { border-color: var(--navy); background: #eaf0fb; font-weight: 700; color: var(--navy); }
.choice input { width: 18px; height: 18px; margin: 0; accent-color: var(--navy); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.cf-turnstile { min-height: 65px; }
.form-actions { padding-top: 4px; }
.form-error {
  margin: 0 0 24px;
  padding: 14px 18px;
  border: 1px solid #f1c0bc;
  border-radius: 8px;
  background: #fdf0ef;
  color: #8c1d18;
}
.form-done { padding: 40px 0; text-align: center; }
.form-done h1, .form-done h2 { color: var(--navy); }
.not-found { padding: 40px 0; text-align: center; }
.not-found .kicker { justify-content: center; }

/* ---------- フッター ---------- */
.site-footer { padding: 56px 0 28px; background: var(--navy-900); color: #c9d3e8; font-size: 14px; }
.site-footer a { color: var(--white); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-name { margin: 0; font-size: 15px; font-weight: 700; color: var(--white); }
.footer-en { margin: 0 0 12px; font-family: var(--font-en); letter-spacing: .06em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; font-family: var(--font-en); letter-spacing: .06em; }
.copyright { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .12); font-family: var(--font-en); font-size: 12px; letter-spacing: .06em; }

/* ---------- 画面幅に合わせる ---------- */
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .steps-short { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 800px) {
  .cards { grid-template-columns: 1fr; }
  .news-wrap { grid-template-columns: 1fr; gap: 8px; }
}
@media (max-width: 640px) {
  body { font-size: 15px; }
  .wrap { padding: 0 16px; }
  .only-wide { display: none; }
  .only-narrow { display: inline; }
  .site-header { position: static; }
  .header-inner { flex-direction: column; align-items: stretch; gap: 6px; min-height: 0; padding-top: 12px; padding-bottom: 10px; }
  .brand img { width: 46px; height: 28px; }
  .brand-en { font-size: 15px; }
  .nav ul { justify-content: space-between; }
  .nav a { padding: 6px 12px; font-size: 13px; }
  .section { padding: 56px 0; }
  .cta { padding: 56px 0; }
  .page-head { height: 160px; }
  .steps > li { grid-template-columns: 1fr; gap: 6px; padding: 22px 20px; }
  .steps-short { grid-template-columns: 1fr; }
  .info { grid-template-columns: 1fr; }
  .info dt { padding-bottom: 0; border-bottom: 0; }
  .info dd { padding-top: 4px; }
  .news li { flex-direction: column; gap: 2px; }
  .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}