/* ============================================================
   社会保険労務士法人ストラテジー - メインスタイルシート
   ============================================================ */

/* ----------------------------------------------------------
   CSS Variables / Root
---------------------------------------------------------- */
:root {
  /* Brand Colors */
  --color-primary:      #1a3a6b;   /* Navy Blue */
  --color-primary-dark: #102a52;
  --color-primary-light:#2550a0;
  /* ロゴのオレンジに合わせる */
  --color-accent:       #f39800;
  --color-accent-light: #ffb020;
  --color-text:         #1e1e1e;
  --color-text-light:   #555555;
  --color-text-muted:   #888888;
  --color-bg:           #ffffff;
  --color-bg-light:     #f4f6fa;
  /* トップ：お知らせ・コラム帯 */
  --color-bg-news:      #fef9eb;
  --color-border:       #dde3ec;
  --color-white:        #ffffff;

  /* Typography */
  --font-sans:  'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;

  /* Spacing */
  --section-padding: 96px 0;
  --section-padding-sm: 60px 0;

  /* Transitions */
  --transition: 0.3s ease;
  --transition-slow: 0.6s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(26,58,107,0.08);
  --shadow-md: 0 4px 20px rgba(26,58,107,0.12);
  --shadow-lg: 0 8px 40px rgba(26,58,107,0.16);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Container */
  --container-max: 1200px;
  --container-pad: 0 24px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* 日本語：単語の途中で改行しない */
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
address { font-style: normal; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ----------------------------------------------------------
   Paragraph & text layout
---------------------------------------------------------- */
/* 日本語：p タグでも単語の途中で改行しない */
p {
  word-break: keep-all;
  overflow-wrap: break-word;
}
/* コンテンツ領域の p タグ：適切な行間と段落間余白 */
.content-section p,
.page-hero p,
section p {
  line-height: 1.6;
  margin-bottom: 12px;
}
/* 最後の p は余白なし */
.content-section p:last-child,
section p:last-child {
  margin-bottom: 0;
}
/* section-desc */
.section-desc {
  line-height: 1.6 !important;
  margin-bottom: 0 !important;
}
/* コンテンツ領域の li：箇条書き行間を詰める */
.content-section li,
section li {
  line-height: 1.5;
  margin-bottom: 4px;
}
.content-section li:last-child,
section li:last-child {
  margin-bottom: 0;
}
/* スマホ専用の改行タグ（.br-sp）は PC で非表示 */
.br-sp { display: none; }
@media (max-width: 640px) {
  .br-sp { display: block; }
}

/* ----------------------------------------------------------
   Utility
---------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-pad);
}

.section-padding { padding: var(--section-padding); }
.bg-light { background: var(--color-bg-light); }
.pc-only { display: inline; }

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
  position: relative;
  padding: 0 20px;
}
.section-label::before,
.section-label::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 14px;
  height: 1px;
  background: var(--color-accent);
}
.section-label::before { right: 0; }
.section-label::after  { left: 0; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  font-family: var(--font-serif);
}
.section-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ----------------------------------------------------------
   セクション画像（共通：差し替えやすい）
---------------------------------------------------------- */
.image-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--color-bg-light);
  min-width: 0;
}
.image-card--tall {
  max-height: 420px;
}
.section-image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: center;
}
.section-split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-bottom: clamp(40px, 5vw, 56px);
  min-width: 0;
}
.section-split--reverse {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
}
.section-split--reverse .section-split__media {
  order: 2;
}
.section-split--reverse .section-split__text {
  order: 1;
}
.section-split__media {
  min-width: 0;
}
.section-split__media .image-card {
  aspect-ratio: 4 / 3;
  max-height: 380px;
}
.section-split__text {
  min-width: 0;
}
.section-split__text .section-label {
  text-align: left;
  padding-left: 0;
}
.section-split__text .section-label::before {
  display: none;
}
.section-split__text .section-label::after {
  left: 0;
  right: auto;
  width: 40px;
}
.section-split__lead {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-top: 12px;
}
.section-split__title {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}
.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}
@media (max-width: 768px) {
  .section-split,
  .section-split--reverse {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
  }
  .section-split--reverse .section-split__media,
  .section-split--reverse .section-split__text {
    order: unset;
  }
  .section-split__media .image-card {
    aspect-ratio: 16 / 10;
    max-height: 260px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
  padding: 14px 28px;
  text-decoration: none;
}
.btn-cta {
  background: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
  padding: 10px 22px;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
}
.btn-cta:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* AOS-like fade animations (CSS only) */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="150"] { transition-delay: 0.15s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }

/* ----------------------------------------------------------
   HEADER
---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

/* Header Top Bar */
.header-top {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: 8px 0;
}
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-info {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.82rem;
}
.header-info span {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.88);
}
.header-tel {
  font-size: 1rem !important;
  font-weight: 700;
  color: var(--color-white) !important;
}
.header-tel a { color: inherit; }
.header-tel a:hover { color: var(--color-accent-light); }
.header-info i { color: var(--color-accent); font-size: 0.8rem; }

/* Header Main */
.header-main {
  background: var(--color-white);
  border-bottom: 3px solid var(--color-accent);
}
.header-main-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

/* Logo */
.site-logo a {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 4px;
}
/* ヘッダーロゴ画像 */
.logo-img {
  display: block;
  height: 48px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  object-position: left center;
}
/* フォールバック（画像なし時） */
.logo-en {
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: 0.22em;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 60%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  display: none; /* 画像使用時は非表示 */
}
.logo-ja {
  font-size: 0.62rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* Global Nav */
.global-nav { display: flex; align-items: center; gap: 8px; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-item a {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 12px;
  font-size: 0.72rem;
  line-height: 1.4;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-item .nav-en {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
  color: var(--color-primary);
}
.nav-item .nav-ja {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  margin-top: 1px;
}
.nav-item a:hover,
.nav-item.active a {
  background: var(--color-bg-light);
  color: var(--color-accent);
}
.nav-item a:hover .nav-en,
.nav-item.active a .nav-en { color: var(--color-accent); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1100;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1050;
}
.mobile-nav-overlay.active { display: block; }

.mobile-nav {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100dvh;
  background: var(--color-white);
  z-index: 1100;
  overflow-y: auto;
  transition: right 0.35s ease;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.mobile-nav.active { right: 0; }
.mobile-nav-close {
  align-self: flex-end;
  font-size: 1.4rem;
  color: var(--color-text-light);
  padding: 4px;
}
.mobile-logo { border-bottom: 2px solid var(--color-accent); padding-bottom: 16px; display: flex; flex-direction: column; gap: 4px; }
.mobile-logo .logo-img {
  display: block;
  height: 44px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  object-position: left center;
}
.mobile-logo .logo-en {
  display: none; /* 画像使用時は非表示 */
}
.mobile-logo .logo-ja {
  font-size: 0.62rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  font-weight: 500;
}
.mobile-nav-list li a {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
}
.mobile-nav-list li a span {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
  margin-left: 6px;
}
.mobile-nav-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
}
.mobile-tel {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  justify-content: center;
  padding: 12px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}
.mobile-nav-contact .btn-cta { justify-content: center; }

/* ----------------------------------------------------------
   HERO
---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, #0c1e40 0%, #1a3a6b 45%, #2550a0 100%);
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(12, 30, 64, 0.88) 0%, rgba(26, 58, 107, 0.72) 42%, rgba(37, 80, 160, 0.48) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding-top: 60px;
  padding-bottom: 100px;
}
.hero-text { max-width: 680px; }
.hero-catch-sub {
  font-size: 0.9rem;
  color: var(--color-accent-light);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  font-weight: 500;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.45;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}
.hero-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
  margin-bottom: 32px;
}
.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-hero-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
  padding: 16px 36px;
  font-size: 1rem;
  box-shadow: 0 4px 20px rgba(243, 152, 0, 0.35);
}
.btn-hero-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(243, 152, 0, 0.45);
}
.btn-hero-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.5);
  padding: 16px 36px;
  font-size: 1rem;
}
.btn-hero-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

/* Hero Features */
.hero-features {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 12px 20px;
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
}
.hero-feature-item i {
  color: var(--color-accent-light);
  font-size: 1.1rem;
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}
.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  font-weight: 600;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ----------------------------------------------------------
   NEWS SECTION
---------------------------------------------------------- */
.news-section {
  padding: var(--section-padding);
  background: var(--color-bg-news);
}
.news-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.news-list {
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.news-item:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}
.news-link {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 28px;
  transition: var(--transition);
}
.news-link:hover { background: var(--color-bg-light); }
.news-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: 500;
  padding-top: 2px;
  min-width: 90px;
}
.news-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
  min-width: 72px;
  text-align: center;
  margin-top: 2px;
}
.tag-info    { background: #e8f0fc; color: var(--color-primary); }
.tag-column  { background: #fdf2e0; color: #9a6800; }
.tag-law     { background: #e6f9f0; color: #1a7a4a; }

.news-title {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
  flex: 1;
}
.news-link:hover .news-title { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.news-more { text-align: center; }

/* ----------------------------------------------------------
   大型背景＋グラデーション（業務内容・事務所情報・事務所紹介イントロ）
---------------------------------------------------------- */
.section-immersive-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.section-immersive-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.section-immersive-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    105deg,
    rgba(255, 255, 255, 0.99) 0%,
    rgba(255, 255, 255, 0.94) 18%,
    rgba(255, 255, 255, 0.78) 34%,
    rgba(255, 255, 255, 0.38) 52%,
    rgba(255, 255, 255, 0.08) 72%,
    transparent 92%
  );
}
.section-immersive-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}
.section-immersive-intro {
  max-width: 30rem;
  margin-bottom: clamp(40px, 5vw, 56px);
}
.section-immersive-intro .section-immersive-label {
  text-align: left;
  padding-left: 0;
  margin-bottom: 10px;
}
.section-immersive-intro .section-immersive-label::before {
  display: none;
}
.section-immersive-intro .section-immersive-label::after {
  left: 0;
  right: auto;
  width: 36px;
}
.section-immersive-intro .section-immersive-heading {
  text-align: left;
  margin-bottom: 16px;
}
.section-immersive-lead {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 0;
}
.office-immersive-intro .office-immersive-eyebrow {
  margin-top: 4px;
  margin-bottom: 8px;
}
.office-immersive-intro .office-immersive-subheading {
  margin-bottom: 12px;
}

/* 解決事例ティーザー（トップ・写真なし・余白重視） */
.cases-teaser-section.section-padding {
  padding: clamp(104px, 13vw, 148px) 0;
}
.cases-teaser-section .section-header {
  margin-bottom: clamp(40px, 5.5vw, 64px);
}
.cases-teaser-section .section-desc {
  max-width: 42rem;
  font-size: clamp(0.98rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  letter-spacing: 0.02em;
}
.cases-teaser-section .cases-teaser-cta {
  text-align: center;
  margin-top: 0;
  padding-top: clamp(40px, 5vw, 56px);
  border-top: 1px solid rgba(26, 58, 107, 0.1);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}
.cases-teaser-section .cases-teaser-cta .btn {
  padding: 14px 32px;
  min-width: 220px;
}

/* 解決事例ページ（page-cases）：FV 直下〜説明文までの余白 */
.page-cases .page-hero.page-hero--photo {
  padding-bottom: clamp(72px, 6.5vw, 100px);
}
/* 文章の上（セクション上端〜）と 文章の下〜フィルターボタン までを同じ幅に */
.page-cases .content-section {
  --cases-text-btn-gap: clamp(56px, 7vw, 88px);
  padding-top: var(--cases-text-btn-gap);
  padding-bottom: clamp(72px, 8vw, 112px);
}
/* section-desc は margin-bottom:0!important のため付けない（下余白はボタンまでのギャップ用） */
.page-cases .content-section p.cases-page-lead {
  text-align: center;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  padding-top: 0;
  padding-bottom: 0;
  margin-bottom: var(--cases-text-btn-gap);
  font-size: clamp(0.98rem, 1.4vw, 1.06rem);
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--color-text-light);
}
.page-cases .filter-bar {
  margin-bottom: clamp(48px, 6vw, 72px);
  gap: 12px 14px;
}
.page-cases .filter-btn {
  padding: 10px 22px;
  font-size: 0.86rem;
}
.page-cases .cases-grid {
  gap: clamp(28px, 3vw, 42px);
}

/* 業務内容 */
.business-section--immersive {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 10vw, 100px) 0;
}
.business-section--immersive .section-immersive-bg-img {
  object-position: 68% center;
}

/* 事務所情報 */
.office-section--immersive {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 10vw, 100px) 0;
}
.office-section--immersive .section-immersive-bg-img {
  object-position: 42% 38%;
}
.office-section--immersive .office-inner {
  margin-top: 0;
}

/* 下層ページ：事務所紹介イントロ（大型背景） */
.about-intro-section.about-section--immersive {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 10vw, 100px) 0;
}
.about-section--immersive .section-immersive-bg-img {
  object-position: 65% center;
}
@media (max-width: 768px) {
  .business-section--immersive .section-immersive-bg-img {
    object-position: center 45%;
  }
  .office-section--immersive .section-immersive-bg-img {
    object-position: center 36%;
  }
  .business-section--immersive .section-immersive-overlay,
  .office-section--immersive .section-immersive-overlay,
  .about-section--immersive .section-immersive-overlay {
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.98) 0%,
      rgba(255, 255, 255, 0.9) 28%,
      rgba(255, 255, 255, 0.55) 52%,
      rgba(255, 255, 255, 0.12) 76%,
      transparent 100%
    );
  }
  .about-section--immersive .section-immersive-bg-img {
    object-position: center 45%;
  }
  .section-immersive-intro {
    max-width: 100%;
  }
}

/* ----------------------------------------------------------
   HOME ABOUT ティーザー
---------------------------------------------------------- */
.home-about-section .section-header {
  margin-bottom: 28px;
}
.home-about-cta {
  margin-top: 0;
  text-align: center;
}

/* ----------------------------------------------------------
   BUSINESS SECTION
---------------------------------------------------------- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.business-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.business-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.business-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.business-card:hover::before { transform: scaleX(1); }
.business-card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}
.business-card-icon i {
  font-size: 1.4rem;
  color: var(--color-white);
}
.business-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}
.business-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
  flex: 1;
}
.business-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: 4px;
  transition: var(--transition);
}
.business-card-link:hover { gap: 10px; }
.business-more {
  text-align: center;
  margin-top: 40px;
}

/* ----------------------------------------------------------
   STRENGTH SECTION（選ばれる理由）
---------------------------------------------------------- */
.strength-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}
.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}
.strength-item {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 40px 32px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}
.strength-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-accent);
}
.strength-number {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--color-bg-light);
  line-height: 1;
  position: absolute;
  top: 24px;
  right: 28px;
  letter-spacing: -0.03em;
  font-family: var(--font-sans);
  user-select: none;
}
.strength-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}
.strength-icon i {
  font-size: 1.5rem;
  color: var(--color-white);
}
.strength-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}
.strength-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ----------------------------------------------------------
   OFFICE SECTION
---------------------------------------------------------- */
.office-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.office-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.office-info-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.office-info-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.office-info-icon i {
  font-size: 1.2rem;
  color: var(--color-primary);
}
.office-info-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.office-info-value {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.6;
}
.office-access {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.5;
}
.office-access i { color: var(--color-accent); margin-top: 3px; }
.office-specialty-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.office-specialty-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.5;
}
.office-specialty-list i { color: var(--color-accent); font-size: 0.75rem; }
/* Map wrapper */
.office-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(26,58,107,0.10);
  border: 1px solid var(--color-border);
}
.office-map iframe {
  display: block;
  width: 100%;
  height: 360px;
  border: 0;
}
@media (max-width: 768px) {
  .office-map iframe { height: 240px; }
}

/* Googleマップで開くボタン */
.map-open-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 10px 22px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  border: 1px solid rgba(26, 58, 107, 0.18);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: var(--transition);
}
.map-open-btn i { font-size: 0.95rem; color: var(--color-accent); }
.map-open-btn:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.map-open-btn:hover i { color: var(--color-accent); }

/* ----------------------------------------------------------
   SUBSIDY DIAGNOSIS (助成金診断)
---------------------------------------------------------- */
.subsidy-section {
  background: var(--color-bg-light);
  padding: var(--section-padding);
}

/* トップ：助成金診断のみ背景写真（images/hero-bg.png） */
.subsidy-section.subsidy-section--with-bg {
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary-dark);
}
.subsidy-section--with-bg::before,
.subsidy-section--with-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.subsidy-section--with-bg::before {
  z-index: 0;
  background-image: url('../images/hero-bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.subsidy-section--with-bg::after {
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(245, 248, 252, 0.88) 45%,
    rgba(232, 240, 252, 0.86) 100%
  );
}
.subsidy-section--with-bg > .container {
  position: relative;
  z-index: 2;
}

.subsidy-btn-wrap {
  display: flex;
  justify-content: center;
  margin-top: 8px;
}
.btn-subsidy {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid rgba(26, 58, 107, 0.2);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 18px 40px;
  border-radius: 100px;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(26, 58, 107, 0.12);
  transition: var(--transition);
}
.btn-subsidy:hover {
  transform: translateY(-2px);
  background: #fafbfd;
  border-color: var(--color-accent);
  color: var(--color-primary-dark);
  box-shadow: 0 8px 28px rgba(26, 58, 107, 0.18);
}
.btn-subsidy .fa-search-dollar {
  font-size: 1.15rem;
  color: var(--color-accent);
}
.subsidy-link-icon {
  font-size: 0.8rem;
  opacity: 0.9;
  color: var(--color-primary-light);
}
@media (max-width: 480px) {
  .btn-subsidy {
    font-size: 0.95rem;
    padding: 16px 28px;
  }
}

/* ----------------------------------------------------------
   CONTACT CTA
---------------------------------------------------------- */
.contact-cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.contact-cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.contact-cta-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.contact-cta-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(12, 24, 52, 0.92) 0%, rgba(26, 58, 107, 0.82) 48%, rgba(12, 30, 64, 0.9) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.contact-cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  text-align: center;
}
.contact-cta-sub {
  font-size: 0.9rem;
  color: var(--color-accent-light);
  letter-spacing: 0.12em;
  font-weight: 500;
  margin-bottom: 8px;
}
.contact-cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}
.contact-cta-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
}
.contact-cta-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.btn-tel {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-white);
  color: var(--color-primary);
  padding: 20px 36px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.btn-tel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-tel i {
  font-size: 1.6rem;
  color: var(--color-accent);
}
.btn-tel span {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.btn-tel span small {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  font-weight: 400;
}
.btn-tel span {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}
.btn-contact-mail {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-accent);
  color: var(--color-white);
  padding: 20px 36px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(243, 152, 0, 0.35);
  transition: var(--transition);
}
.btn-contact-mail:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(243, 152, 0, 0.45);
}
.btn-contact-mail i { font-size: 1.6rem; }
.btn-contact-mail span {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.btn-contact-mail span small {
  font-size: 0.72rem;
  font-weight: 400;
  opacity: 0.85;
}
.btn-contact-mail span {
  font-size: 1.05rem;
  font-weight: 700;
}

/* ----------------------------------------------------------
   FOOTER
---------------------------------------------------------- */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.75); }
.footer-main { padding: 72px 0 48px; }
.footer-main-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}
.footer-logo { display: flex; flex-direction: column; gap: 6px; }
.footer-logo .logo-img {
  display: block;
  height: 44px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  object-position: left center;
  /* 透過PNGのため filter 不要・そのまま表示 */
  opacity: 0.92;
  margin-bottom: 2px;
}
.footer-logo .logo-en {
  display: none; /* 画像使用時は非表示 */
}
.footer-logo .logo-ja {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.48);
  letter-spacing: 0.08em;
  font-weight: 400;
}
.footer-address {
  margin-top: 16px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
}
.footer-address a { color: rgba(255,255,255,0.6); }
.footer-address a:hover { color: var(--color-accent-light); }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer-nav-heading {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav ul li a {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-nav ul li a::before {
  content: '›';
  color: var(--color-accent);
  font-size: 1rem;
}
.footer-nav ul li a:hover { color: var(--color-white); padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.copyright { font-size: 0.77rem; color: rgba(255,255,255,0.45); }
.footer-links { display: flex; gap: 20px; }
.footer-links a {
  font-size: 0.77rem;
  color: rgba(255,255,255,0.45);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--color-white); }

/* ----------------------------------------------------------
   BACK TO TOP
---------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition);
  z-index: 900;
  border: 2px solid rgba(255,255,255,0.15);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

/* ----------------------------------------------------------
   SUB PAGE COMMON STYLES
---------------------------------------------------------- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero-inner {
  position: relative;
  z-index: 1;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,0.55); }
.breadcrumb a:hover { color: rgba(255,255,255,0.9); }
.breadcrumb span { color: rgba(255,255,255,0.35); }
.page-hero-en {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent-light);
  margin-bottom: 10px;
}
.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

/* 下層ページヒーロー（写真＋オーバーレイ） */
.page-hero--photo {
  background: var(--color-primary-dark);
}
.page-hero--photo::before {
  display: none;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.page-hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
}
.page-hero-photo-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(105deg, rgba(12, 30, 64, 0.9) 0%, rgba(26, 58, 107, 0.78) 55%, rgba(12, 30, 64, 0.88) 100%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero--photo .page-hero-inner {
  position: relative;
  z-index: 2;
}

.column-page-intro .section-title {
  text-align: left;
}
.column-page-intro .section-label {
  text-align: left;
  padding-left: 0;
}
.column-page-intro .section-label::before {
  display: none;
}
.column-page-intro .section-label::after {
  left: 0;
  right: auto;
  width: 40px;
}

.about-intro-heading {
  margin-bottom: 12px;
}

/* Content sections */
.content-section { padding: var(--section-padding); }

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.data-table th, .data-table td {
  padding: 14px 20px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}
.data-table th {
  background: var(--color-bg-light);
  color: var(--color-primary);
  font-weight: 700;
  white-space: nowrap;
  width: 200px;
}

/* Accordion (Q&A) */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 12px;
  transition: var(--transition);
}
.accordion-item.open {
  overflow: visible;
}
.accordion-item:hover { box-shadow: var(--shadow-sm); }
.accordion-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--color-white);
  transition: var(--transition);
  user-select: none;
}
.accordion-header:hover { background: var(--color-bg-light); }
.accordion-q-mark {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--color-primary);
  min-width: 28px;
  line-height: 1.5;
}
.accordion-question {
  flex: 1;
  min-width: 0;
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.7;
  padding-top: 2px;
  overflow-wrap: break-word;
  word-break: keep-all;
}
.accordion-icon {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: transform 0.3s;
  margin-top: 4px;
}
.accordion-item.open .accordion-icon { transform: rotate(180deg); }
.accordion-item.open .accordion-header { background: var(--color-bg-light); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
/* 開いたときは横方向の見切れを防ぐ（子の min-width:0 と併用） */
.accordion-item.open .accordion-body {
  overflow-x: visible;
  overflow-y: visible;
}
/* A と本文を横並びにしつつ、複数ブロック（p, ul）は第2列に縦積み（grid） */
.accordion-body-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 0;
  align-items: start;
  padding: 20px 24px 24px;
  border-top: 1px solid var(--color-border);
  background: #fafcff;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: break-word;
  word-break: keep-all;
}
.accordion-body-inner > .accordion-a-mark {
  grid-column: 1;
  grid-row: 1 / -1;
}
.accordion-body-inner > *:not(.accordion-a-mark) {
  grid-column: 2;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-break: keep-all;
}
.accordion-a-mark {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--color-accent);
  min-width: 28px;
  line-height: 1.5;
}
.accordion-answer {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-break: keep-all;
}
/* 回答内のネストした flex / grid（FAQの箇条書き等） */
.accordion-body-inner .qa-answer-list,
.accordion-body-inner .qa-inline-grid {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  list-style: none;
  margin: 10px 0 10px 8px;
  padding: 0;
}
.accordion-body-inner .qa-inline-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px 16px;
}
.accordion-body-inner .qa-answer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.accordion-body-inner .qa-answer-list--dense {
  margin: 10px 0;
}
.accordion-body-inner .qa-answer-list li,
.accordion-body-inner .qa-inline-grid li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-width: 0;
  box-sizing: border-box;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--color-text-light);
  overflow-wrap: break-word;
  word-break: keep-all;
}
.accordion-body-inner .qa-answer-list--dense li {
  font-size: 0.88rem;
  gap: 8px;
}
.accordion-body-inner .qa-inline-grid li {
  gap: 6px;
  font-size: 0.9rem;
}
.accordion-body-inner .qa-answer-list li > i,
.accordion-body-inner .qa-inline-grid li > i {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 3px;
  font-size: 0.8rem;
}
.accordion-body-inner .qa-answer-list--dense li > i {
  margin-top: 4px;
}
.accordion-body-inner .qa-inline-grid li > i {
  font-size: 0.45rem;
  margin-top: 7px;
}
.accordion-body-inner .qa-answer-list li > span,
.accordion-body-inner .qa-inline-grid li > span {
  flex: 1 1 0%;
  min-width: 0;
  overflow-wrap: break-word;
  word-break: keep-all;
}

/* ----------------------------------------------------------
   RESPONSIVE - Tablet (≤ 1024px)
---------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --container-pad: 0 20px; }

  html {
    overflow-x: hidden;
    max-width: 100%;
  }

  .business-grid { grid-template-columns: repeat(2, 1fr); }
  .strength-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .office-info-grid { grid-template-columns: repeat(2, 1fr); }

  .footer-main-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-nav { grid-template-columns: repeat(3, 1fr); }

  .hero-features { gap: 16px; }

  .page-cases .page-hero.page-hero--photo {
    padding-bottom: clamp(56px, 6vw, 72px);
  }
  .page-cases .content-section {
    --cases-text-btn-gap: clamp(48px, 6vw, 72px);
    padding-top: var(--cases-text-btn-gap);
    padding-bottom: clamp(56px, 6.5vw, 80px);
  }
}

/* 長文折りたたみ（details）：マーカー非表示 */
details.mobile-collapse-details > summary.mobile-collapse-summary {
  list-style: none;
}
details.mobile-collapse-details > summary.mobile-collapse-summary::-webkit-details-marker {
  display: none;
}
details.mobile-collapse-details > summary.mobile-collapse-summary::marker {
  content: '';
}

/* PCでは折りたたみを無効化（本文をそのまま表示） */
@media (min-width: 769px) {
  details.mobile-collapse-details {
    display: contents;
  }
  details.mobile-collapse-details > summary.mobile-collapse-summary {
    display: none !important;
  }
}

/* ----------------------------------------------------------
   RESPONSIVE - Mobile (≤ 768px)
---------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --section-padding: 40px 0;
    --section-padding-sm: 32px 0;
    --container-pad: 0 16px;
  }

  /* スマホ幅に収める（横スクロール防止・ノッチ対応） */
  html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    max-width: 100%;
    /* 長い語・URL・英字でも画面幅に収める（keep-all より優先） */
    word-break: normal;
    overflow-wrap: anywhere;
    line-break: auto;
  }
  main,
  section,
  article,
  .section-immersive-inner,
  .hero-content {
    max-width: 100%;
    min-width: 0;
  }
  p,
  li,
  td,
  th,
  dd,
  dt,
  blockquote,
  .section-desc,
  .hero-desc,
  .section-immersive-lead,
  .accordion-question,
  .accordion-body-inner {
    overflow-wrap: anywhere;
    max-width: 100%;
  }
  h1, h2, h3, h4, h5, h6 {
    overflow-wrap: anywhere;
    max-width: 100%;
  }
  .container {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
    padding-top: 0;
    padding-bottom: 0;
  }

  .pc-only { display: none; }

  details.mobile-collapse-details {
    margin-top: 4px;
  }
  details.mobile-collapse-details > summary.mobile-collapse-summary {
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    padding: 8px 0 4px;
  }
  details.mobile-collapse-details .business-card-desc,
  details.mobile-collapse-details .strength-desc,
  details.mobile-collapse-details .office-info-value {
    margin-top: 0;
  }

  /* 表の横スクロール（汎用） */
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 16px;
  }
  .table-responsive .overview-table {
    min-width: 520px;
  }

  /* Header */
  .header-top { display: none; }
  .header-main-inner {
    min-height: 56px;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }
  .global-nav { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  .hero {
    min-height: min(88vh, 720px);
    max-width: 100%;
  }
  .hero-content { gap: 28px; padding-top: 40px; padding-bottom: 56px; }
  .hero-title { font-size: clamp(1.6rem, 7vw, 2.2rem); }
  .hero-desc { font-size: 0.92rem; }
  .hero-cta-group { flex-direction: column; gap: 12px; }
  .btn-hero-primary, .btn-hero-secondary {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
    font-size: 0.95rem;
  }
  .hero-features { gap: 10px; }
  .hero-feature-item { padding: 10px 14px; font-size: 0.82rem; }

  /* Section */
  .section-header { margin-bottom: 28px; }
  .section-title { font-size: 1.6rem; }
  .news-section { padding: var(--section-padding); }
  .contact-cta-section { padding: 56px 0; }
  .page-hero { padding: 52px 0 44px; }

  .page-cases .page-hero.page-hero--photo {
    padding-bottom: clamp(40px, 5vw, 56px);
  }

  .cases-teaser-section.section-padding {
    padding: clamp(52px, 14vw, 72px) 0;
  }
  .cases-teaser-section .section-header {
    margin-bottom: clamp(28px, 8vw, 40px);
  }
  .cases-teaser-section .cases-teaser-cta {
    padding-top: clamp(28px, 7vw, 44px);
    max-width: 100%;
  }
  .page-cases .content-section {
    --cases-text-btn-gap: clamp(40px, 6vw, 56px);
    padding-top: var(--cases-text-btn-gap);
    padding-bottom: clamp(44px, 8vw, 64px);
  }
  .page-cases .content-section p.cases-page-lead {
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: var(--cases-text-btn-gap);
    text-align: left;
  }
  .page-cases .filter-bar {
    margin-bottom: clamp(36px, 8vw, 48px);
    justify-content: flex-start;
  }

  /* News */
  .news-link { flex-direction: column; gap: 8px; padding: 16px 20px; }
  .news-date { min-width: auto; }

  /* Business（トップ：5カードをスマホで3列・小さめ） */
  .business-section .business-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 6px;
    align-items: stretch;
  }
  .business-section .business-card {
    padding: 10px 6px;
    gap: 6px;
    border-radius: var(--radius-md);
  }
  .business-section .business-card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  .business-section .business-card-icon {
    width: 32px;
    height: 32px;
    margin: 0 auto;
    border-radius: var(--radius-sm);
  }
  .business-section .business-card-icon i {
    font-size: 0.85rem;
  }
  .business-section .business-card-title {
    font-size: clamp(0.62rem, 2.6vw, 0.72rem);
    font-weight: 700;
    line-height: 1.35;
    text-align: center;
    letter-spacing: 0;
  }
  .business-section .business-card .mobile-collapse-summary {
    font-size: 0.58rem;
    padding: 4px 0 2px;
    font-weight: 600;
  }
  .business-section .business-card-link {
    font-size: 0.58rem;
    gap: 2px;
    margin-top: 0;
    justify-content: center;
    text-align: center;
  }
  .business-section .business-card-link i {
    font-size: 0.55rem;
  }

  /* 選ばれる理由：コンテナも他セクションと同じ横余白（セーフエリア） */
  .strength-section .container {
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }

  /* 選ばれる理由（3列・コンパクト／カード3枚を1行に） */
  .strength-section .strength-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 6px;
    align-items: stretch;
  }
  .strength-section .strength-item {
    padding: 10px 6px;
    gap: 6px;
    border-radius: var(--radius-md);
  }
  .strength-section .strength-item:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
  .strength-section .strength-number {
    font-size: clamp(1.1rem, 4.5vw, 1.5rem);
    top: 4px;
    right: 4px;
    color: rgba(26, 58, 107, 0.12);
  }
  .strength-section .strength-icon {
    width: 32px;
    height: 32px;
    margin: 0 auto;
    border-radius: var(--radius-sm);
  }
  .strength-section .strength-icon i {
    font-size: 0.85rem;
  }
  .strength-section .strength-title {
    font-size: clamp(0.62rem, 2.6vw, 0.72rem);
    line-height: 1.35;
    text-align: center;
    letter-spacing: 0;
  }
  .strength-section .strength-item .mobile-collapse-summary {
    font-size: 0.58rem;
    padding: 4px 0 2px;
    font-weight: 600;
  }

  /* Office */
  .office-info-grid { grid-template-columns: 1fr; gap: 16px; }

  /* Contact CTA */
  .contact-cta-buttons { flex-direction: column; gap: 16px; }
  .btn-tel, .btn-contact-mail {
    width: 100%;
    justify-content: center;
    padding: 16px 24px;
  }

  /* Footer */
  .footer-main-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }

  /* Back to top */
  .back-to-top { bottom: 20px; right: 16px; width: 40px; height: 40px; font-size: 0.85rem; }
}

/* ----------------------------------------------------------
   RESPONSIVE - Small Mobile (≤ 480px)
---------------------------------------------------------- */
@media (max-width: 480px) {
  .footer-nav { grid-template-columns: 1fr; }
  .hero-features { grid-template-columns: repeat(2, 1fr); display: grid; }
}