/* ===== 変数 ===== */
:root {
  --navy: #1e3a5f;
  --navy-dark: #142943;
  --navy-light: #2c5079;
  --accent: #d97b4f;
  --accent-dark: #c2653a;
  --gray-900: #222b33;
  --gray-700: #4a5560;
  --gray-500: #7a8794;
  --gray-200: #e6e9ec;
  --gray-100: #f4f6f8;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 4px 16px rgba(30, 58, 95, 0.08);
  --shadow-hover: 0 8px 24px rgba(30, 58, 95, 0.14);
  --max-width: 1120px;
  --header-height: 76px;
}

/* ===== リセット ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", "Segoe UI", sans-serif;
  color: var(--gray-900);
  line-height: 1.8;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

section {
  padding: 88px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-title {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--navy-dark);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-desc {
  color: var(--gray-700);
  margin-bottom: 48px;
  max-width: 640px;
}

.section-head {
  text-align: center;
}

.section-head .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ===== ヘッダー ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gray-200);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
}

.brand img {
  height: 40px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav ul {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-700);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--navy);
  border-color: var(--accent);
}

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--navy-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-dark);
  transition: transform 0.2s, opacity 0.2s;
}

/* ===== フッター ===== */
.site-footer {
  background: var(--navy-dark);
  color: var(--gray-200);
  padding: 56px 0 28px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand img {
  height: 34px;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: var(--gray-500);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-nav {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-nav h4 {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 14px;
}

.footer-nav li {
  margin-bottom: 8px;
}

.footer-nav a {
  color: var(--gray-200);
  font-size: 0.92rem;
  opacity: 0.85;
}

.footer-nav a:hover {
  opacity: 1;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  font-size: 0.8rem;
  color: var(--gray-500);
  text-align: center;
}

/* ===== ヒーロー(トップ) ===== */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 55%, var(--navy-light) 100%);
  color: var(--white);
  padding: 120px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 123, 79, 0.25) 0%, rgba(217, 123, 79, 0) 70%);
}

.hero-inner {
  max-width: 640px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 2.6rem;
  line-height: 1.5;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== ボタン ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn-navy {
  background: var(--navy);
  color: var(--white);
}

.btn-navy:hover {
  background: var(--navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* ===== 強みカード ===== */
.strengths {
  background: var(--gray-100);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.strength-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.strength-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.strength-card h3 {
  font-size: 1.05rem;
  color: var(--navy-dark);
  margin-bottom: 10px;
}

.strength-card p {
  font-size: 0.9rem;
  color: var(--gray-700);
  margin-bottom: 16px;
}

.strength-card .more-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}

/* ===== お知らせプレビュー ===== */
.news-preview-list {
  border-top: 1px solid var(--gray-200);
}

.news-preview-item {
  display: flex;
  gap: 24px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--gray-200);
}

.news-date {
  flex: 0 0 auto;
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 600;
}

.news-title {
  color: var(--gray-900);
  font-weight: 600;
}

.news-preview-item:hover .news-title {
  color: var(--accent);
}

.news-more {
  margin-top: 32px;
  text-align: center;
}

/* ===== CTA ===== */
.cta {
  background: var(--navy-dark);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  font-size: 1.7rem;
  margin-bottom: 16px;
}

.cta p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

/* ===== ページヘッダー(下層ページ共通) ===== */
.page-hero {
  background: linear-gradient(120deg, var(--navy-dark), var(--navy));
  color: var(--white);
  padding: 72px 0 64px;
  text-align: center;
}

.page-hero .section-label {
  color: var(--accent);
}

.page-hero h1 {
  font-size: 2rem;
  font-weight: 700;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.8);
  margin-top: 14px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== プロフィールページ ===== */
.profile-block {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}

.profile-card {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
}

.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.profile-card h2 {
  font-size: 1.2rem;
  color: var(--navy-dark);
  margin-bottom: 4px;
}

.profile-card .role {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 20px;
}

.profile-facts {
  text-align: left;
  font-size: 0.88rem;
  color: var(--gray-700);
  border-top: 1px solid var(--gray-200);
  padding-top: 18px;
}

.profile-facts dt {
  font-weight: 700;
  color: var(--navy-dark);
  margin-top: 12px;
}

.profile-facts dt:first-child {
  margin-top: 0;
}

.profile-facts dd {
  margin-top: 2px;
}

.profile-body h2 {
  font-size: 1.15rem;
  color: var(--navy-dark);
  margin: 28px 0 12px;
}

.profile-body h2:first-child {
  margin-top: 0;
}

.profile-body p {
  color: var(--gray-700);
}

/* ===== サービス詳細 ===== */
.service-detail {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 1px solid var(--gray-200);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail .strength-icon {
  margin-bottom: 0;
}

.service-detail h3 {
  font-size: 1.15rem;
  color: var(--navy-dark);
  margin-bottom: 10px;
}

.service-detail p {
  color: var(--gray-700);
}

/* ===== お知らせ一覧ページ ===== */
.news-list-page .news-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--gray-200);
}

.news-list-page .news-item:first-child {
  padding-top: 0;
}

.news-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--navy);
  background: var(--gray-100);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 8px;
}

.news-item h3 {
  font-size: 1.05rem;
  color: var(--navy-dark);
  margin-bottom: 8px;
}

.news-item p {
  color: var(--gray-700);
  font-size: 0.94rem;
}

/* ===== お問い合わせページ ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 56px;
}

.contact-info h2 {
  font-size: 1.1rem;
  color: var(--navy-dark);
  margin-bottom: 14px;
}

.contact-info p {
  color: var(--gray-700);
  margin-bottom: 24px;
}

.contact-info-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.contact-info-item .strength-icon {
  width: 40px;
  height: 40px;
  font-size: 1rem;
  flex: none;
  margin-bottom: 0;
}

.contact-info-item span {
  font-size: 0.9rem;
  color: var(--gray-700);
}

.contact-info-item strong {
  display: block;
  color: var(--navy-dark);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 40px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--navy-dark);
  margin-bottom: 8px;
}

.form-group .required {
  color: var(--accent);
  font-weight: 700;
  margin-left: 4px;
  font-size: 0.78rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-note {
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-top: 16px;
}

.form-status {
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.form-status.is-success {
  display: block;
  color: #1a7a4c;
}

.form-status.is-error {
  display: block;
  color: #b3403a;
}

/* ===== レスポンシブ ===== */
@media (max-width: 900px) {
  .strength-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .profile-block {
    grid-template-columns: 1fr;
  }

  .profile-card {
    max-width: 320px;
    margin: 0 auto;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  section {
    padding: 64px 0;
  }

  .hero {
    padding: 96px 0 72px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.2s, opacity 0.2s, visibility 0.2s;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 4px;
  }

  .main-nav a {
    display: block;
    padding: 12px 4px;
  }

  .nav-cta {
    text-align: center;
  }

  .strength-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }

  .news-preview-item {
    flex-direction: column;
    gap: 4px;
  }

  .news-list-page .news-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .service-detail {
    grid-template-columns: 48px 1fr;
  }
}