*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --black: #1c1c1c;
  --mid: #555;
  --gray: #999;
  --border: #e8e8e8;
  --bg: #fff;
  --serif: 'Cormorant Garamond', serif;
  --mincho: 'Zen Old Mincho', 'Noto Serif JP', serif;
  --sans: 'Noto Sans JP', sans-serif;
}

/* ⑤ 見出しを明朝体に */
.section-heading,
.page-header-en,
.access-title,
.contact-title,
.company-catch,
.message-quote,
.profile-en {
  font-family: var(--mincho);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--black);
  background: var(--bg);
  overflow-x: hidden;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 52px;
  transition: background 0.15s, box-shadow 0.15s;
  will-change: transform;
}
nav.on-hero { background: transparent; box-shadow: none; }
nav.solid, nav.page-nav {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 0 var(--border);
}
.nav-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
}
.nav-logo-mark {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: inherit;
}
nav.on-hero .nav-logo-mark { color: #fff; }
nav.solid .nav-logo-mark,
nav.page-nav .nav-logo-mark { color: var(--black); }
.nav-logo-sub {
  font-size: 11px;
  letter-spacing: 0.25em;
}
nav.on-hero .nav-logo-sub { color: rgba(255,255,255,0.7); }
nav.solid .nav-logo-sub,
nav.page-nav .nav-logo-sub { color: var(--gray); }
.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}
.nav-links a {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
nav.on-hero .nav-links a { color: rgba(255,255,255,0.9); }
nav.solid .nav-links a,
nav.page-nav .nav-links a { color: var(--black); }
nav.on-hero .nav-links a:hover { color: #fff; border-bottom-color: rgba(255,255,255,0.5); }
nav.solid .nav-links a:hover,
nav.page-nav .nav-links a:hover { color: var(--mid); border-bottom-color: var(--border); }
.nav-links a.active { border-bottom: 2px solid var(--black); padding-bottom: 3px; }

/* ─── PAGE HEADER ─── */
.page-header {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  height: 52vh;
}
/* 旧imgタグ（後方互換） */
.page-header-img {
  width: 100%;
  height: 52vh;
  object-fit: cover;
  display: block;
  opacity: 0;
  transform: scale(1.04);
  animation: phReveal 1.8s cubic-bezier(0.4,0,0.2,1) 0.1s forwards;
}
/* パララックス背景div */
.page-header-bg {
  position: absolute;
  top: -20%; left: 0; right: 0; bottom: -20%;
  background-size: cover;
  background-position: center center;
  will-change: transform;
  opacity: 0;
  animation: phReveal 1.8s cubic-bezier(0.4,0,0.2,1) 0.1s forwards;
}
@keyframes phReveal {
  to { opacity: 1; }
}
.page-header-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 56px 60px 64px;
  background: linear-gradient(transparent, rgba(0,0,0,0.18));
  opacity: 0;
  animation: phText 1s ease 0.7s forwards;
  z-index: 2;
}
@keyframes phText {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.page-header-en {
  font-family: var(--mincho);
  font-style: normal;
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 400;
  letter-spacing: 0.18em;
  display: block;
  margin-bottom: 10px;
  color: #fff;
  text-shadow: 0 1px 12px rgba(0,0,0,0.22);
}
.page-header-ja {
  font-size: 11px;
  font-family: var(--sans);
  font-weight: 300;
  letter-spacing: 0.32em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 20px;
}
.page-header-msg {
  font-size: 13px;
  line-height: 2;
  color: rgba(255,255,255,0.8);
  max-width: 480px;
}

@media (max-width: 860px) {
  .page-header { height: 60vw; min-height: 240px; }
  .page-header-img { height: 60vw; min-height: 240px; }
  .page-header-bg { top: -20%; bottom: -20%; background-position: center center; transform: none !important; }
  .page-header-body { padding: 28px 24px 36px; }
  .page-header-en { font-size: clamp(28px, 8vw, 44px); margin-bottom: 8px; }
  .page-header-ja { font-size: 10px; margin-bottom: 12px; }
  .page-header-msg { font-size: 12px; line-height: 1.9; }
}

/* ─── SECTION LABEL ─── */
.sec-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 64px;
}
.sec-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--gray);
}
.sec-name {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--black);
}
.sec-line {
  flex: 0 0 72px;
  height: 1px;
  background: #ccc;
}

/* ─── CONTENT LAYOUT ─── */
.content-block {
  padding: 140px 60px 160px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.content-block.flip { direction: rtl; }
.content-block.flip > * { direction: ltr; }
.content-block.bg-light { background: #fafafa; }

.section-heading {
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 300;
  line-height: 1.7;
  letter-spacing: 0.05em;
  margin-bottom: 36px;
}
.section-text {
  font-size: 13px;
  line-height: 2.2;
  color: var(--mid);
  margin-bottom: 14px;
}
.section-en {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--gray);
  line-height: 1.9;
  margin-top: 28px;
}

/* ─── PHOTO COLLAGE ─── */
.collage {
  position: relative;
  height: 580px;
}
.collage .p-main {
  position: absolute;
  top: 0; right: 0;
  width: 76%; height: 420px;
  object-fit: cover;
}
.collage .p-sub {
  position: absolute;
  bottom: 0; right: 18%;
  width: 52%; height: 260px;
  object-fit: cover;
}
.collage.left .p-main { right: auto; left: 0; }
.collage.left .p-sub  { right: auto; left: 18%; }

/* ─── BTN ─── */
.btn {
  display: inline-block;
  margin-top: 44px;
  padding: 13px 44px;
  border: 1px solid var(--black);
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--black);
  text-decoration: none;
  transition: background 0.25s, color 0.25s;
}
.btn:hover { background: var(--black); color: #fff; }

/* ─── FOOTER ─── */
footer {
  background: var(--black);
  color: rgba(255,255,255,0.85);
  padding: 64px 60px 40px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
.footer-logo {
  font-family: var(--mincho);
  font-size: 22px;
  letter-spacing: 0.25em;
  color: #fff;
  display: block;
  margin-bottom: 12px;
}
.footer-tagline {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.4);
  line-height: 1.8;
}
.footer-col-title {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}
.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-nav a:hover { color: #fff; }
.footer-info {
  font-size: 11px;
  line-height: 2.2;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.05em;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy {
  font-size: 11px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.08em;
}
.footer-sns {
  display: flex;
  gap: 20px;
}
.footer-sns a {
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-sns a:hover { color: #fff; }

/* ─── PHOTO STRIP ─── */
.photo-strip-wrap {
  margin-top: 0;
  padding: 80px 0 80px;
}
.photo-strip-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--gray);
  text-align: center;
  margin-bottom: 28px;
}
.photo-strip {
  overflow: hidden;
  width: 100%;
}
.photo-strip-track {
  display: flex;
  gap: 4px;
  width: max-content;
  animation: stripScroll 55s linear infinite;
}
.photo-strip-track:hover {
  animation-play-state: paused;
}
.photo-strip-track img {
  height: 260px;
  width: auto;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  filter: brightness(0.95);
  transition: filter 0.3s;
}
.photo-strip-track img:hover {
  filter: brightness(1.05);
}
@keyframes stripScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ④ LINE固定ボタン */
.line-fixed {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  background: var(--black);
  color: #fff;
  text-decoration: none;
  font-size: 11px;
  letter-spacing: 0.2em;
  border-radius: 28px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  opacity: 0;
  animation: lineIn 0.6s ease 1.5s forwards;
}
@keyframes lineIn {
  to { opacity: 1; }
}
.line-fixed:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.22);
}
.line-fixed-icon {
  width: 18px;
  height: 18px;
  fill: #fff;
}

/* ─── FADE ─── */
.fade { opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s ease; }
.fade.in { opacity: 1; transform: none; }
.fade.d1 { transition-delay: 0.15s; }
.fade.d2 { transition-delay: 0.3s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 860px) {
  /* ナビ */
  nav { padding: 18px 20px; }
  .nav-links { display: none; }

  /* コンテンツブロック */
  .content-block { grid-template-columns: 1fr; padding: 72px 24px 88px; gap: 40px; }
  .content-block.flip { direction: ltr; }
  .collage { height: 280px; }
  .sec-label { margin-bottom: 40px; }
  .section-heading { font-size: clamp(22px, 6vw, 32px); }

  /* フッター */
  footer { padding: 48px 24px 32px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; text-align: left; }
  .footer-nav { flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
  .footer-info { word-break: break-all; }

  /* フォトストリップ */
  .photo-strip-wrap { padding: 48px 0; }

  /* LINEボタン */
  .line-fixed { bottom: 20px; right: 16px; padding: 11px 16px; font-size: 10px; }
  .line-fixed-icon { width: 16px; height: 16px; }
}

/* ─── HAMBURGER + MOBILE OVERLAY ─── */
.nav-ham {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 0;
  flex-direction: column;
  gap: 6px;
  z-index: 110;
}
.nav-ham span {
  display: block;
  width: 24px;
  height: 1.5px;
  transition: transform 0.35s, opacity 0.3s;
}
nav.on-hero .nav-ham span { background: #fff; }
nav.solid .nav-ham span,
nav.page-nav .nav-ham span { background: var(--black); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.98);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.nav-overlay > ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
}
.nav-overlay > ul li a {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--black);
  text-decoration: none;
}
.nav-overlay > ul li a:hover { color: var(--mid); }
.nav-overlay-close {
  position: absolute;
  top: 22px;
  right: 28px;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--black);
  cursor: pointer;
  line-height: 1;
}
body.nav-open { overflow: hidden; }
/* オーバーレイが開いているときはハンバーガーを無効化 */
body.nav-open .nav-ham { pointer-events: none; }

@media (max-width: 860px) {
  .nav-ham { display: flex; }
}

/* ─── TOUCH DEVICE: ホバーエフェクト無効化 ─── */
/* タッチデバイスではhoverが「貼り付いて」しまうため無効にする */
@media (hover: none) {
  .member-card:hover .member-photo { transform: none; filter: none; }
  .member-card:hover .member-name  { opacity: 1; }
  .blog-card:hover   .blog-thumb   { transform: none; filter: brightness(1); }
  .blog-card:hover   .blog-title   { opacity: 1; }
  .service-card:hover,
  .service-item:hover { opacity: 1; }
}

/* ─── BLOG FILTER: カード非表示（位置を変えない） ─── */
/* display:noneではなくopacity+pointer-eventsで非表示にすることで
   グリッドの並び順が変わらないようにする                        */
.blog-card {
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.blog-card.filtered-out {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.97);
}

/* ─── PAGE TRANSITION ─── */
/* アニメーションなし：ページロード時に即表示 */
#page-content { opacity: 1; }