/* =============================================
   CSS Custom Properties
============================================= */
:root {
  --color-primary:      #0F2A4A;
  --color-primary-dark: #081B33;
  --color-accent:       #1E5BA8;
  --color-text:         #1A1A1A;
  --color-text-sub:     #6B7280;
  --color-bg:           #FFFFFF;
  --color-bg-subtle:    #F5F6F8;
  --color-border:       #E5E7EB;
  --font-body:   'Noto Sans JP', sans-serif;
  --font-number: 'Inter', sans-serif;
  --container-max: 1200px;
  --section-v: 120px;
}

/* =============================================
   Reset / Base
============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

/* =============================================
   Layout Utilities
============================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

.section { padding: var(--section-v) 0; }

.section-label {
  font-family: var(--font-number);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 14px;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-sub);
}

/* =============================================
   Buttons
============================================= */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.btn-outline-white:hover {
  background: #fff;
  color: var(--color-primary-dark);
}

/* =============================================
   HEADER
============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  position: relative;
}

.site-logo a { text-decoration: none; display: block; }
.logo-ja {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.35;
}
.logo-ja span { display: block; }
.logo-en {
  font-family: var(--font-number);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-sub);
}

/* Hamburger checkbox (hidden but functional) */
.hamburger-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* Hamburger label — hidden on desktop, shown on SP */
.hamburger-label {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px;
  z-index: 201;
  position: relative;
}
.hamburger-label span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary-dark);
  transition: transform 0.25s, opacity 0.25s;
  transform-origin: center;
}

/* PC Global Nav */
.global-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.global-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.02em;
}
.global-nav a:hover { color: var(--color-accent); text-decoration: none; }

.nav-cta {
  padding: 8px 20px;
  background: var(--color-accent) !important;
  color: #fff !important;
  font-size: 13px !important;
}
.nav-cta:hover {
  background: var(--color-primary) !important;
}

/* =============================================
   HERO
============================================= */
.hero {
  padding: 100px 0 120px;
  background: var(--color-bg);
}

.hero-label {
  font-family: var(--font-number);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(34px, 4.5vw, 58px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-primary-dark);
  line-height: 1.35;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-sub);
  max-width: 540px;
  margin-bottom: 44px;
}

.hero-note {
  margin-top: 20px;
  font-size: 12px;
  color: var(--color-text-sub);
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* =============================================
   STRENGTHS
============================================= */
.strengths { background: var(--color-bg-subtle); }

.strengths-header { margin-bottom: 56px; }

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.strength-card {
  background: #fff;
  padding: 36px 28px;
  border-top: 3px solid var(--color-accent);
}

.strength-num {
  font-family: var(--font-number);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.strength-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1.55;
  margin-bottom: 14px;
}

.strength-desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-sub);
}

.strengths-footer {
  margin-top: 48px;
  text-align: right;
}

/* =============================================
   M&A ADVISORY (DARK)
============================================= */
.ma-section {
  background: var(--color-primary-dark);
  color: #fff;
}

.ma-section .section-label { color: rgba(255,255,255,0.45); }
.ma-section .section-title { color: #fff; }

.ma-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.ma-left .section-desc {
  color: rgba(255,255,255,0.7);
  max-width: 100%;
  margin-bottom: 32px;
}

.ma-list {
  margin-bottom: 36px;
}
.ma-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.82);
  padding: 11px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.ma-list li::before {
  content: "—";
  font-family: var(--font-number);
  color: var(--color-accent);
  flex-shrink: 0;
}

.ma-note {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  margin-top: 16px;
  padding: 12px 16px;
  border-left: 2px solid rgba(255,255,255,0.2);
}

.ma-right {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ma-feature {
  padding: 22px 24px;
  border: 1px solid rgba(255,255,255,0.1);
}
.ma-feature + .ma-feature { border-top: none; }

.ma-feature-title {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.ma-feature-desc {
  font-size: 12px;
  line-height: 1.75;
  color: rgba(255,255,255,0.55);
}

/* =============================================
   OTHER SERVICES
============================================= */
.services-header { margin-bottom: 52px; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--color-bg-subtle);
  padding: 28px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-card-label {
  font-family: var(--font-number);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.service-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1.55;
}

.service-card-desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-sub);
  flex: 1;
}

.service-card-items {
  font-size: 12px;
  color: var(--color-text-sub);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.service-card-items li::before {
  content: "・";
  color: var(--color-accent);
}

.service-card-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}
.service-card-link::after { content: " →"; }
.service-card-link:hover { text-decoration: underline; }

/* =============================================
   COMPANY
============================================= */
.company-section { background: var(--color-bg-subtle); }

.company-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.company-left .section-desc {
  margin-bottom: 32px;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.company-table tr { border-bottom: 1px solid var(--color-border); }
.company-table th {
  width: 110px;
  padding: 14px 16px 14px 0;
  font-weight: 500;
  color: var(--color-text-sub);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}
.company-table td {
  padding: 14px 0;
  color: var(--color-text);
  line-height: 1.7;
}

/* =============================================
   CTA
============================================= */
.cta-section {
  background: var(--color-primary);
  text-align: center;
  padding: var(--section-v) 0;
}

.cta-title {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.cta-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 1.9;
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-note {
  margin-top: 20px;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}

/* =============================================
   FOOTER
============================================= */
.site-footer {
  background: #111827;
  color: rgba(255,255,255,0.55);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 52px;
}

.footer-brand .logo-ja {
  color: #fff;
  font-size: 14px;
  display: block;
  margin-bottom: 4px;
}
.footer-brand .logo-en {
  color: rgba(255,255,255,0.35);
}

.footer-tagline {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,0.45);
}

.footer-col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin-bottom: 18px;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav-list a {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
}
.footer-nav-list a:hover { color: #fff; text-decoration: none; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.footer-copy {
  font-family: var(--font-number);
  color: rgba(255,255,255,0.3);
}

.footer-legal {
  display: flex;
  gap: 24px;
}
.footer-legal a {
  color: rgba(255,255,255,0.35);
  font-size: 12px;
}
.footer-legal a:hover { color: #fff; text-decoration: none; }

/* =============================================
   RESPONSIVE — 768px
============================================= */
@media (max-width: 768px) {
  :root { --section-v: 80px; }

  .container,
  .header-inner,
  .footer-inner { padding: 0 20px; }

  /* Header */
  .header-inner { padding: 0 20px; }
  .logo-ja { font-size: 11px; }

  .hamburger-label { display: flex; }

  .global-nav {
    display: none;
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    background: #fff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    z-index: 199;
  }
  .global-nav a { font-size: 18px; color: var(--color-primary-dark); }
  .nav-cta {
    padding: 12px 32px !important;
    font-size: 16px !important;
  }

  /* Hamburger open state */
  .hamburger-checkbox:checked ~ .global-nav { display: flex; }
  .hamburger-checkbox:checked + .hamburger-label span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger-checkbox:checked + .hamburger-label span:nth-child(2) {
    opacity: 0;
  }
  .hamburger-checkbox:checked + .hamburger-label span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Hero */
  .hero { padding: 64px 0 80px; }
  .hero-buttons { flex-direction: column; align-items: flex-start; }

  /* Strengths */
  .strengths-grid { grid-template-columns: 1fr; gap: 16px; }
  .strengths-footer { text-align: left; }

  /* M&A */
  .ma-inner { grid-template-columns: 1fr; gap: 48px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* Company */
  .company-inner { grid-template-columns: 1fr; gap: 40px; }

  /* Footer */
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .footer-legal { justify-content: center; }

  /* Typography */
  .section-title { font-size: 24px; }
  .cta-title { font-size: 22px; }
}

@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}

/* =============================================
   修正1: ロゴ 一体感（余白詰め）
============================================= */
.logo-ja { display: block; margin-bottom: 1px; }
.logo-en { display: block; }

/* =============================================
   修正3: 強みカード番号 大型装飾
============================================= */
.strength-card {
  position: relative;
  overflow: hidden;
  outline: 1px solid transparent;
  transition: transform 0.3s ease, box-shadow 0.3s ease, outline-color 0.3s ease;
  padding-top: 96px;
}
.strength-num {
  font-size: 64px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: rgba(15, 42, 74, 0.18);
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  margin-bottom: 0;
}
.strength-title,
.strength-desc { position: relative; z-index: 1; }

/* =============================================
   修正4-1: ホバーエフェクト
============================================= */
.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 20px rgba(15, 42, 74, 0.08);
  outline-color: var(--color-accent);
}
.service-card {
  outline: 1px solid transparent;
  transition: transform 0.3s ease, box-shadow 0.3s ease, outline-color 0.3s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 20px rgba(15, 42, 74, 0.08);
  outline-color: var(--color-accent);
}
.btn {
  transition: background 0.2s ease, color 0.2s ease,
              border-color 0.2s ease, transform 0.2s ease;
}
.btn:hover { transform: scale(1.02); }

/* =============================================
   修正4-2: スクロール時フェードイン
============================================= */
.fade-in-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   修正4-4: section-label 横線装飾
============================================= */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  flex-shrink: 0;
}
.ma-section .section-label::before {
  background: rgba(255, 255, 255, 0.35);
}

/* =============================================
   ヒーロー 背景装飾画像
============================================= */
.hero { position: relative; overflow: hidden; }
.hero-bg-decoration {
  position: absolute;
  right: 0;
  top: 0;
  width: 55%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.hero-bg-decoration img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right center;
}
.hero > .container { position: relative; z-index: 1; }

/* =============================================
   prefers-reduced-motion — アニメーション無効化
============================================= */
@media (prefers-reduced-motion: reduce) {
  .fade-in-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .strength-card,
  .service-card { transition: none; }
  .strength-card:hover,
  .service-card:hover { transform: none; }
  .btn { transition: background 0.2s, color 0.2s, border-color 0.2s; }
  .btn:hover { transform: none; }
}

/* =============================================
   SP 追加オーバーライド
============================================= */
@media (max-width: 768px) {
  .strength-num { font-size: 48px; top: 12px; }
  .strength-card { padding-top: 76px; }
  .hero-bg-decoration { display: none; }
}

/* =============================================
   BREADCRUMB（下層ページ共通）
============================================= */
.breadcrumb {
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb-inner {
  padding: 14px 0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-sub);
  flex-wrap: wrap;
}
.breadcrumb-inner a {
  color: var(--color-text-sub);
  text-decoration: none;
}
.breadcrumb-inner a:hover { color: var(--color-accent); }
.breadcrumb-sep {
  color: var(--color-text-sub);
  user-select: none;
  font-size: 11px;
}
.breadcrumb-current { color: var(--color-text); }

/* =============================================
   PAGE TITLE SECTION（下層ページ共通）
============================================= */
.page-title-section {
  padding: 80px 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.page-title-h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1.35;
  margin-bottom: 16px;
  margin-top: 16px;
}
.page-title-sub {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-sub);
  max-width: 600px;
}

/* =============================================
   PAGE CONTENT（下層ページ共通）
============================================= */
.page-content {
  padding: 60px 0;
}
.page-content-inner {
  max-width: 800px;
}
.page-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  margin-top: 48px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}
.page-content h2:first-child { margin-top: 0; }
.page-content h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 32px;
  margin-bottom: 10px;
}
.page-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 20px;
}
.page-content ul,
.page-content ol {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 20px;
}
.page-content ul li,
.page-content ol li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 4px;
}
.page-content .note-box {
  background: var(--color-bg-subtle);
  border-left: 3px solid var(--color-accent);
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

/* =============================================
   PROFILE TABLE（会社概要・代表略歴用）
============================================= */
.profile-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-bottom: 40px;
}
.profile-table tr + tr { border-top: 1px solid var(--color-border); }
.profile-table td {
  padding: 16px 0;
  line-height: 1.8;
  vertical-align: top;
}
.profile-table td:first-child {
  width: 140px;
  padding-right: 20px;
  font-weight: 500;
  color: var(--color-text-sub);
  white-space: nowrap;
}
.profile-table td:last-child { color: var(--color-text); }

/* =============================================
   M&A FLAGSHIP 特別仕様
============================================= */
.page-title-section--flagship {
  background: var(--color-primary);
  border-bottom: none;
}
.page-title-section--flagship .section-label {
  color: rgba(255,255,255,0.65);
}
.page-title-section--flagship .page-title-h1 {
  color: #fff;
}
.page-title-section--flagship .page-title-sub {
  color: rgba(255,255,255,0.8);
}
.flagship-badge {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.45);
  color: rgba(255,255,255,0.9);
  font-family: var(--font-number);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 12px;
  margin-bottom: 20px;
}

/* =============================================
   SUB-NAV（会社概要ページ内リンク）
============================================= */
.subnav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.subnav-card {
  display: block;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 20px 22px;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 500;
  font-size: 14px;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.subnav-card:hover {
  border-color: var(--color-accent);
  background: #fff;
  text-decoration: none;
}
.subnav-card-label {
  font-family: var(--font-number);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 6px;
}

/* =============================================
   ステップリスト（ご利用の流れ / Zoom相談）
============================================= */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 40px 0;
}
.step-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}
.step-item:last-child {
  border-bottom: none;
}
.step-number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-number);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.02em;
}
.step-body {
  flex: 1;
  padding-top: 8px;
}
.step-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.step-desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
  margin: 0;
}

/* =============================================
   お問い合わせフォーム
============================================= */
.contact-form {
  max-width: 680px;
  margin: 40px 0;
}
.form-group {
  margin-bottom: 28px;
}
.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.required-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: #C0392B;
  padding: 1px 6px;
  letter-spacing: 0.04em;
}
.optional-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  padding: 1px 6px;
  letter-spacing: 0.04em;
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 0;
  outline: none;
  transition: border-color 0.15s;
  box-sizing: border-box;
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
}
.form-textarea {
  min-height: 160px;
  resize: vertical;
}
.form-error-msg {
  display: none;
  font-size: 13px;
  color: #C0392B;
  margin-top: 4px;
}
.form-error-msg.is-visible {
  display: block;
}
.form-input.is-invalid,
.form-textarea.is-invalid {
  border-color: #C0392B;
}
.contact-phone-box {
  background: var(--color-bg-subtle);
  border-left: 3px solid var(--color-accent);
  padding: 20px 24px;
  margin-bottom: 40px;
  font-size: 15px;
  line-height: 1.8;
}
.contact-phone-num {
  font-family: var(--font-number);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

/* =============================================
   SP: 下層ページ共通オーバーライド
============================================= */
@media (max-width: 768px) {
  .page-title-section { padding: 60px 0; }
  .page-title-h1 { font-size: 26px; }
  .profile-table td:first-child { width: 100px; white-space: normal; }
  .subnav-grid { grid-template-columns: 1fr; }
  .step-item { gap: 18px; padding: 24px 0; }
  .step-number { width: 44px; height: 44px; font-size: 18px; }
  .step-title { font-size: 15px; }
}