@charset "UTF-8";

/* =========================================================
   株式会社ロック コーポレートサイト 共通スタイル
   フォーマル / ライトテーマ
   ========================================================= */

:root {
  --color-primary: #1a3a5f;        /* 深い紺 */
  --color-primary-dark: #0f2540;
  --color-accent: #b8955a;         /* 落ち着いた金 */
  --color-accent-dark: #8b6f3f;
  --color-text: #222;
  --color-text-sub: #555;
  --color-muted: #8a8a8a;
  --color-border: #e2e0da;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f5f0;         /* ほのかなアイボリー */
  --color-bg-dark: #1a3a5f;
  --max-width: 1140px;
  --font-serif: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", "游明朝", serif;
  --font-sans: "Yu Gothic", "YuGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color .2s ease;
}
a:hover { color: var(--color-accent-dark); text-decoration: underline; }

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

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-primary-dark);
  letter-spacing: .04em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- ヘッダー ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-serif);
  font-size: 17px;
  letter-spacing: .1em;
  color: var(--color-primary-dark);
  text-decoration: none;
}
.site-logo__img {
  display: block;
  height: 44px;
  width: auto;
  flex-shrink: 0;
}
.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.site-logo__name {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--color-primary-dark);
  letter-spacing: .08em;
}
.site-logo__en {
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--color-muted);
  font-family: var(--font-sans);
  margin-top: 2px;
}
.site-footer__logo-img {
  height: 56px;
  width: auto;
  margin-bottom: 14px;
  /* ロゴの背景は白なので反転はせず、背景を白帯でそのまま表示 */
  background: #fff;
  padding: 6px 10px;
  display: inline-block;
}

.global-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 28px;
}
.global-nav a {
  position: relative;
  color: var(--color-text);
  font-size: 14px;
  letter-spacing: .1em;
  padding: 6px 0;
}
.global-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width .25s ease;
}
.global-nav a:hover { text-decoration: none; color: var(--color-primary-dark); }
.global-nav a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
}

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, #f7f5f0 0%, #ffffff 60%, #eaeef3 100%);
  padding: 100px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -80px; right: -80px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(184,149,90,.12) 0%, rgba(184,149,90,0) 70%);
  border-radius: 50%;
}
.hero__eyebrow {
  font-size: 12px;
  letter-spacing: .4em;
  color: var(--color-accent-dark);
  margin: 0 0 24px;
}
.hero__title {
  font-size: 44px;
  line-height: 1.3;
  margin: 0 0 28px;
  color: var(--color-primary-dark);
}
.hero__title em {
  font-style: normal;
  color: var(--color-accent-dark);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 4px;
}
.hero__lead {
  font-size: 17px;
  max-width: 640px;
  color: var(--color-text-sub);
  margin: 0 0 40px;
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 14px;
  letter-spacing: .15em;
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: #fff !important;
  transition: all .25s ease;
  cursor: pointer;
}
.btn:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  text-decoration: none;
}
.btn--outline {
  background: transparent;
  color: var(--color-primary) !important;
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff !important;
}
.btn--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.btn--accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}
.btn__arrow { transition: transform .25s ease; }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ---------- セクション共通 ---------- */
.section {
  padding: 100px 0;
}
.section--alt { background: var(--color-bg-alt); }
.section__header {
  text-align: center;
  margin: 0 auto 60px;
  max-width: 780px;
}
.section__eyebrow {
  font-size: 12px;
  letter-spacing: .4em;
  color: var(--color-accent-dark);
  margin: 0 0 14px;
}
.section__title {
  font-size: 32px;
  margin: 0 0 20px;
  position: relative;
  display: block;
  padding-bottom: 6px;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-accent);
}
.section__lead {
  font-size: 16px;
  color: var(--color-text-sub);
  margin: 0;
}

/* ---------- 3つの柱 ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.pillar {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 48px 32px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
}
.pillar:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(26,58,95,.08);
}
.pillar__num {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .3em;
  color: var(--color-accent-dark);
  margin: 0 0 12px;
}
.pillar__title {
  font-size: 26px;
  margin: 0 0 8px;
}
.pillar__title-en {
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--color-muted);
  margin: 0 0 24px;
}
.pillar__body {
  font-size: 15px;
  color: var(--color-text-sub);
  margin: 0;
  text-align: left;
}

/* ---------- 事業紹介カード ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.service-card {
  background: #fff;
  border-top: 3px solid var(--color-accent);
  padding: 40px 36px;
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
}
.service-card h3 {
  font-size: 22px;
  margin: 0 0 16px;
}
.service-card p {
  color: var(--color-text-sub);
  margin: 0 0 20px;
}

/* ---------- News / お知らせ ---------- */
.news-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 820px;
  margin: 0 auto;
}
.news-list li {
  display: flex;
  gap: 32px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.news-date {
  color: var(--color-muted);
  font-size: 14px;
  min-width: 110px;
  letter-spacing: .05em;
}
.news-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .2em;
  padding: 3px 12px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  min-width: 90px;
  text-align: center;
}
.news-title { color: var(--color-text); }

/* ---------- 会社情報テーブル ---------- */
.company-table {
  width: 100%;
  border-collapse: collapse;
  max-width: 860px;
  margin: 0 auto;
}
.company-table th,
.company-table td {
  text-align: left;
  padding: 22px 24px;
  border-bottom: 1px solid var(--color-border);
  font-size: 15px;
  vertical-align: top;
}
.company-table th {
  width: 220px;
  font-weight: 500;
  color: var(--color-primary-dark);
  background: var(--color-bg-alt);
}

/* ---------- ページヘッダー ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 70px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}
.page-header__eyebrow {
  font-size: 12px;
  letter-spacing: .4em;
  color: var(--color-accent);
  margin: 0 0 12px;
}
.page-header h1 {
  color: #fff;
  font-size: 34px;
  margin: 0;
}
.breadcrumb {
  font-size: 12px;
  color: #a7b8cc;
  margin-top: 16px;
  letter-spacing: .08em;
}
.breadcrumb a { color: #d6dee8; }
.breadcrumb span { margin: 0 8px; }

/* ---------- 記事本文 ---------- */
.article-body {
  max-width: 860px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 2;
}
.article-body h2 {
  font-size: 24px;
  margin: 56px 0 20px;
  padding: 0 0 12px 16px;
  border-left: 4px solid var(--color-accent);
  border-bottom: 1px solid var(--color-border);
}
.article-body h3 {
  font-size: 19px;
  margin: 40px 0 14px;
  color: var(--color-primary);
}
.article-body p { margin: 0 0 18px; }
.article-body ol,
.article-body ul { padding-left: 1.5em; margin: 0 0 20px; }
.article-body li { margin-bottom: 10px; }
.article-body > ol { padding-left: 0; list-style: none; counter-reset: section; }
.article-body > ol > li {
  counter-increment: section;
  margin-bottom: 24px;
}
.article-body address {
  margin-top: 50px;
  padding: 24px 28px;
  background: var(--color-bg-alt);
  font-style: normal;
  border-left: 3px solid var(--color-accent);
}

/* ---------- 認定ページ用 ---------- */
.nintei-lead {
  background: var(--color-bg-alt);
  padding: 40px 44px;
  border-left: 4px solid var(--color-accent);
  margin-bottom: 40px;
  font-size: 16px;
}
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 40px 0;
}
.tier-card {
  border: 1px solid var(--color-border);
  padding: 32px 24px;
  background: #fff;
  text-align: center;
}
.tier-card__rank {
  display: inline-block;
  padding: 6px 18px;
  font-size: 12px;
  letter-spacing: .3em;
  color: #fff;
  margin-bottom: 18px;
}
.tier-card--gold .tier-card__rank { background: #b8955a; }
.tier-card--silver .tier-card__rank { background: #8a8a8a; }
.tier-card--bronze .tier-card__rank { background: #a77551; }
.tier-card h3 { margin: 0 0 12px; font-size: 18px; }
.tier-card p { font-size: 14px; color: var(--color-text-sub); margin: 0; }

/* ---------- CTA ---------- */
.cta {
  background: var(--color-bg-dark);
  color: #fff;
  padding: 80px 24px;
  text-align: center;
}
.cta h2 { color: #fff; font-size: 28px; margin: 0 0 16px; }
.cta p { color: #c9d3e0; margin: 0 0 32px; }

/* ---------- フッター ---------- */
.site-footer {
  background: #0f2540;
  color: #c9d3e0;
  padding: 60px 0 30px;
  font-size: 14px;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #203a5c;
}
.site-footer h4 {
  color: #fff;
  font-size: 14px;
  letter-spacing: .2em;
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-weight: 500;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #c9d3e0; }
.site-footer a:hover { color: #fff; }
.site-footer__logo {
  font-family: var(--font-serif);
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
  letter-spacing: .1em;
}
.site-footer__addr {
  font-size: 13px;
  line-height: 1.9;
  color: #a7b8cc;
}
.site-footer__copy {
  text-align: center;
  padding-top: 24px;
  font-size: 12px;
  color: #7a8ca4;
  letter-spacing: .08em;
}

/* ---------- フォーム ---------- */
.form {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  padding: 48px 52px;
  border: 1px solid var(--color-border);
}
.form-row { margin-bottom: 24px; }
.form-row label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
  font-weight: 500;
}
.form-row .req {
  display: inline-block;
  font-size: 10px;
  color: #fff;
  background: #c0392b;
  padding: 2px 8px;
  margin-left: 8px;
  letter-spacing: .1em;
}
.form-row input[type=text],
.form-row input[type=email],
.form-row input[type=tel],
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  background: #fdfcf9;
  font-size: 15px;
  font-family: var(--font-sans);
  transition: border-color .2s;
}
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--color-accent);
  background: #fff;
}
.form-row textarea { min-height: 160px; resize: vertical; }
.form-actions { text-align: center; margin-top: 32px; }

/* ---------- ASSIGN提案ページ用 ---------- */
.assign-hero {
  background:
    linear-gradient(135deg, rgba(15,37,64,.92) 0%, rgba(26,58,95,.85) 100%),
    linear-gradient(45deg, #1a3a5f 0%, #2c5282 100%);
  color: #fff;
  padding: 110px 24px 90px;
  text-align: center;
  position: relative;
}
.assign-hero__eyebrow {
  font-size: 12px; letter-spacing: .5em; color: var(--color-accent);
  margin: 0 0 20px;
}
.assign-hero h1 {
  color: #fff;
  font-size: 44px;
  margin: 0 0 24px;
  letter-spacing: .05em;
}
.assign-hero p {
  font-size: 17px;
  max-width: 780px;
  margin: 0 auto;
  color: #e5ebf3;
}
.assign-section h2 {
  font-size: 26px;
  margin: 0 0 10px;
  padding-bottom: 5px;
  position: relative;
  display: block;
}
.assign-section h2::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-accent);
}
.assign-section h2 .num {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-accent-dark);
  display: block;
  letter-spacing: .3em;
  margin-bottom: 6px;
}
.assign-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
}
.assign-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.feature-box {
  padding: 28px 28px;
  background: #fff;
  border: 1px solid var(--color-border);
}
.feature-box h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--color-primary);
}
.feature-box p { margin: 0; color: var(--color-text-sub); font-size: 14px; }

.royalty-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}
.royalty-table th,
.royalty-table td {
  border: 1px solid var(--color-border);
  padding: 16px 20px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}
.royalty-table th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
  letter-spacing: .1em;
}
.royalty-table td:first-child {
  background: var(--color-bg-alt);
  font-weight: 500;
  color: var(--color-primary-dark);
  width: 30%;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 860px) {
  .hero { padding: 60px 0 80px; }
  .hero__title { font-size: 30px; }
  .section { padding: 70px 0; }
  .section__title { font-size: 24px; }
  .pillars,
  .service-grid,
  .tier-grid,
  .site-footer__grid,
  .assign-grid-2,
  .assign-grid-3 {
    grid-template-columns: 1fr;
  }
  .global-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
  }
  .global-nav.is-open { display: block; }
  .global-nav ul { flex-direction: column; gap: 0; }
  .global-nav li { border-bottom: 1px solid var(--color-border); }
  .global-nav li:last-child { border-bottom: none; }
  .global-nav a { display: block; padding: 14px 0; }
  .nav-toggle { display: inline-block; }
  .site-header__inner { position: relative; }

  .company-table th,
  .company-table td { display: block; width: 100%; padding: 14px 16px; }
  .company-table th { border-bottom: none; }

  .news-list li { flex-direction: column; gap: 6px; }
  .news-date { min-width: auto; }
  .form { padding: 32px 24px; }
  .assign-hero h1 { font-size: 30px; }
  .page-header h1 { font-size: 24px; }
}