/* ==========================================================================
   OLive Tree — site.css
   構成: フォント → デザイントークン → 土台 → コンポーネント → セクション → 下層ページ → レスポンシブ
   ========================================================================== */

/* ---- フォント（TYPOGRAPHY.md §5） ----
   Noto Sans JP は unicode-range 分割ではなく、charset=japanese の単一ファイル（1ウェイトあたり約1MB）を採用。
   理由は TYPOGRAPHY.md §5-1 の追記（2026-08-14）を参照。
*/
@font-face {
  font-family: "Noto Serif JP";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/noto-serif-jp-400-subset.woff2") format("woff2");
}
@font-face {
  font-family: "Noto Serif JP";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/fonts/noto-serif-jp-500-subset.woff2") format("woff2");
}
@font-face {
  font-family: "Noto Sans JP";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/noto-sans-jp-400.woff2") format("woff2");
}
@font-face {
  font-family: "Noto Sans JP";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/fonts/noto-sans-jp-500.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/cormorant-garamond-400.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/cormorant-garamond-400-italic.woff2") format("woff2");
}

/* ---- デザイントークン（DESIGN.md §1） ---- */
:root {
  /* 地と面 */
  --bg: #FAFCFF;
  --surface: #F2F6FB;
  --white: #FFFFFF;
  --line: #CCD7E6;
  --line-soft: #E8F0FA;

  /* 紺 */
  --navy-abyss: #020D27;
  --navy-deep: #041838;
  --navy: #0A2A6B;

  /* 文字 */
  --text: #0A1833;
  --text-body: #2A3A55;
  --text-sub: #596981;
  /* 2026-08-27: #8593A9 から変更。12.5px / 13px の小さな文字に使っており、
     白背景で 3.11、フォーム背景で 3.03 と WCAG AA（4.5:1）を下回っていたため。
     現在は 4.73 / 4.60。使用箇所は .business__note と .field__hint の2つのみ。 */
  --text-mute: #697486;
  --placeholder: #9AA8BE;
  --error: #B03A2E;

  /* 紺地の上 */
  --on-navy-strong: #FAFCFF;
  --on-navy-header: #F5F8FF;
  --on-navy-body: #CCD7E6;
  --on-navy-accent: #8FA6D4;
  --on-navy-link: rgba(222, 232, 250, 0.85);
  --on-navy-faint: rgba(222, 232, 250, 0.55);

  /* 書体 */
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-en: "Cormorant Garamond", "Times New Roman", serif;

  /* 骨格（DESIGN.md §2） */
  --header-h: 88px;
  --section-pad-x: clamp(24px, 5vw, 72px);
}

/* ---- 土台（DESIGN.md §2） ---- */
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
}
h1, h2, h3, p, dl, dd {
  margin: 0;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--navy);
}
a:hover {
  color: var(--navy-deep);
}
::placeholder {
  color: var(--placeholder);
}
button {
  font-family: inherit;
}

/* ==========================================================================
   ヘッダー（DESIGN.md §4）
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
}
.header__bg {
  position: absolute;
  inset: 0;
  background: rgba(4, 24, 56, 0.92);
  box-shadow: 0 1px 24px rgba(2, 13, 39, 0.25);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.header.is-scrolled .header__bg {
  opacity: 1;
}
.header__inner {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px clamp(24px, 4.5vw, 64px);
}
.header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}
.header__logo {
  height: 40px;
  width: auto;
}
.header__wordmark {
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--on-navy-header);
}
.header__nav ul {
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 44px);
}
.header__nav a {
  font-family: var(--font-en);
  font-size: 16px;
  letter-spacing: 0.2em;
  color: rgba(245, 248, 255, 0.85);
  text-decoration: none;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(245, 248, 255, 0);
  transition: color 0.3s ease, border-color 0.3s ease;
}
.header__nav a:hover {
  color: #FFFFFF;
  border-bottom-color: rgba(245, 248, 255, 0.9);
}
.header__mobile {
  display: none;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.header__contact-btn {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.16em;
  white-space: nowrap;
  color: #F5F8FF;
  text-decoration: none;
  padding: 11px 16px;
  border: 1px solid rgba(245, 248, 255, 0.5);
  border-radius: 999px;
}
body.menu-open .header__contact-btn {
  display: none;
}

@media (max-width: 820px) {
  .header__inner {
    padding: 12px 18px;
  }
  .header__wordmark {
    font-size: 18px;
  }
  .header__nav {
    display: none;
  }
  .header__mobile {
    display: flex;
  }
}

/* ---- ハンバーガー ---- */
.hamburger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  min-width: 44px;
  background: none;
  border: none;
  padding: 6px 2px;
  cursor: pointer;
}
.hamburger__bar {
  display: block;
  width: 26px;
  background: #F5F8FF;
  transition: transform 0.3s ease;
}
.hamburger__bar--top {
  height: 1.5px;
}
.hamburger__bar--bottom {
  height: 1.3px;
}
.hamburger__label {
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: #F5F8FF;
  margin-top: 2px;
}
.hamburger[aria-expanded="true"] .hamburger__bar--top {
  transform: translateY(4px) rotate(20deg);
}
.hamburger[aria-expanded="true"] .hamburger__bar--bottom {
  transform: translateY(-4px) rotate(-20deg);
}

/* ==========================================================================
   モバイルドロワー（DESIGN.md §4）
   ========================================================================== */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: linear-gradient(170deg, #041838 0%, #0A2A6B 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(32px, 8vw, 64px);
  animation: drawerIn 0.4s cubic-bezier(0.2, 0.6, 0.2, 1) both;
}
.drawer[hidden] {
  display: none;
}
.drawer__circle {
  position: absolute;
  right: -140px;
  top: -120px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(143, 166, 212, 0.2);
  border-radius: 50%;
}
.drawer__menu {
  position: relative;
  display: flex;
  flex-direction: column;
}
.drawer__menu a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(204, 215, 230, 0.22);
  text-decoration: none;
}
.drawer__menu-en {
  font-family: var(--font-en);
  font-size: 26px;
  letter-spacing: 0.16em;
  color: var(--on-navy-strong);
}
.drawer__menu-ja {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--on-navy-accent);
}
.drawer__utility {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 40px;
}
.drawer__utility a {
  font-size: 13.5px;
  letter-spacing: 0.1em;
  color: var(--on-navy-link);
  text-decoration: none;
}

@keyframes drawerIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* ==========================================================================
   ローディング画面（DESIGN.md §9）
   ========================================================================== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--navy-abyss);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.9s ease, visibility 0s linear 0.9s;
}
.loader.is-done {
  opacity: 0;
  visibility: hidden;
}
.loader__logo {
  height: 52px;
  width: auto;
  animation: fvLoaderPulse 1.6s ease-in-out infinite alternate;
}

/* ==========================================================================
   HERO（DESIGN.md §5, §8）
   ========================================================================== */
.hero {
  position: relative;
  height: 100vh;
  /* dvh ではなく svh を使う。dvh はアドレスバーの伸縮に追従して伸び縮みするため、
     スクロール中に .hero の高さが変わり、object-fit: cover の切り抜きが再計算されて
     画像が伸縮して見える。svh は「アドレスバーが出ている状態の高さ」に固定されるので、
     スクロール中も変化せず、初期表示で下部が切れることもない（DESIGN.md §5 の追記参照）。*/
  height: 100svh;
  min-height: 640px;
  overflow: hidden;
  background: var(--navy-abyss);
}
.hero__picture {
  position: absolute;
  inset: 0;
  display: block;
}
.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 85% 50%;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(2, 13, 39, 0.5) 0%, rgba(2, 13, 39, 0.22) 42%, rgba(2, 13, 39, 0) 64%);
}
.hero__mist {
  position: absolute;
  left: 0;
  right: 0;
  top: -60px;
  height: 52%;
  background: linear-gradient(180deg, rgba(4, 24, 56, 0.55) 0%, rgba(10, 42, 107, 0.18) 55%, rgba(10, 42, 107, 0) 100%);
  animation: fvDrift 16s ease-in-out infinite alternate;
}
.hero__glow {
  position: absolute;
  left: 88%;
  top: 58%;
  width: 760px;
  height: 760px;
  margin: -380px 0 0 -380px;
  background: radial-gradient(circle at center,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(214, 230, 255, 0.28) 24%,
    rgba(150, 180, 240, 0.12) 42%,
    rgba(150, 180, 240, 0) 65%);
  mix-blend-mode: screen;
  animation: fvGlow 9s ease-in-out infinite alternate;
}
.hero__ripple {
  position: absolute;
  left: 88%;
  top: 58%;
  width: 920px;
  height: 920px;
  margin: -460px 0 0 -460px;
  border-radius: 50%;
  /* backwards: 遅延中は0%キーフレーム(極小・透明)を保持する。無いと遅延中は等倍・不透明のまま静止表示され、
     遅延明けに0%へ飛んで唐突に消える(DESIGN.md §8 参照)。 */
  animation: fvRipple 15s cubic-bezier(0.2, 0.6, 0.4, 1) infinite backwards;
}
.hero__ripple--1 { border: 1px solid rgba(220, 235, 255, 0.5); animation-delay: 0s; }
.hero__ripple--2 { border: 1px solid rgba(220, 235, 255, 0.4); animation-delay: 5s; }
.hero__ripple--3 { border: 1px solid rgba(220, 235, 255, 0.3); animation-delay: 10s; }

.hero__star {
  position: absolute;
  height: 1px;
  transform-origin: right center;
  rotate: 145deg;
  opacity: 0;
  animation-name: fvShootingStar;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.hero__star--1 {
  left: 16%; top: 8%; width: 150px;
  background: linear-gradient(90deg, rgba(235, 244, 255, 0) 0%, rgba(235, 244, 255, 0.9) 100%);
  animation-duration: 10s; animation-delay: 2s;
}
.hero__star--2 {
  left: 13%; top: 22%; width: 120px;
  background: linear-gradient(90deg, rgba(235, 244, 255, 0) 0%, rgba(235, 244, 255, 0.75) 100%);
  animation-duration: 14.5s; animation-delay: 7.5s;
}
.hero__star--3 {
  left: 31%; top: 13%; width: 100px;
  background: linear-gradient(90deg, rgba(235, 244, 255, 0) 0%, rgba(235, 244, 255, 0.65) 100%);
  animation-duration: 12s; animation-delay: 12s;
}

.hero__text {
  position: absolute;
  left: clamp(24px, 6vw, 80px);
  top: 38%;
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.hero__heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(31px, 4.2vw, 57px);
  letter-spacing: 0.16em;
  color: #F5F8FF;
  text-shadow: 0 2px 40px rgba(2, 13, 39, 0.45);
  animation: fvFadeUp 1.8s cubic-bezier(0.2, 0.6, 0.2, 1) both;
  animation-play-state: paused;
}
.hero__tagline {
  font-family: var(--font-en);
  font-style: italic;
  font-size: clamp(25px, 1.9vw, 26px);
  letter-spacing: 0.1em;
  color: rgba(222, 232, 250, 0.9);
  animation: fvFadeUp 1.8s cubic-bezier(0.2, 0.6, 0.2, 1) 0.5s both;
  animation-play-state: paused;
}
.hero.is-playing .hero__heading,
.hero.is-playing .hero__tagline {
  animation-play-state: running;
}

.hero__scroll {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.hero__scroll-label {
  font-size: 11px;
  letter-spacing: 0.35em;
  color: rgba(222, 232, 250, 0.8);
}
.hero__scroll-track {
  width: 1px;
  height: 52px;
  overflow: hidden;
}
.hero__scroll-fill {
  display: block;
  width: 1px;
  height: 52px;
  background: linear-gradient(180deg, rgba(222, 232, 250, 0.9), rgba(222, 232, 250, 0.15));
  animation: fvScroll 2.6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@media (max-width: 820px) {
  .hero__image {
    object-position: 60% 50%;
  }
  .hero__glow,
  .hero__ripple {
    left: 92%;
    top: 30%;
  }
  .hero__text {
    gap: 21px;
  }
}

/* ---- 光の粒（十字の光芒。HERO・VALUES共通。DESIGN.md §8） ---- */
.spark {
  position: absolute;
  background:
    linear-gradient(rgba(var(--spark-rgb), var(--a)), rgba(var(--spark-rgb), var(--a))) center / 0.5px 100% no-repeat,
    linear-gradient(rgba(var(--spark-rgb), var(--a)), rgba(var(--spark-rgb), var(--a))) center / 62% 0.5px no-repeat;
  animation-name: fvParticle;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-fill-mode: backwards;
}
.spark::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(var(--spark-rgb), var(--a-cross)), rgba(var(--spark-rgb), var(--a-cross))) center / 0.5px 100% no-repeat,
    linear-gradient(rgba(var(--spark-rgb), var(--a-cross)), rgba(var(--spark-rgb), var(--a-cross))) center / 62% 0.5px no-repeat;
  transform: rotate(45deg);
}
.spark--hero { --spark-rgb: 235, 244, 255; }
.spark--values { --spark-rgb: 204, 215, 230; }

/* ---- @keyframes（DESIGN.md §8。参照実装からそのまま転記） ---- */
@keyframes fvRipple {
  0% { transform: scale(0.12); opacity: 0; }
  18% { opacity: 0.5; }
  100% { transform: scale(1); opacity: 0; }
}
@keyframes fvGlow {
  0% { opacity: 0.55; }
  100% { opacity: 1; }
}
@keyframes fvDrift {
  0% { transform: translateY(-36px); opacity: 0.85; }
  100% { transform: translateY(24px); opacity: 1; }
}
@keyframes fvParticle {
  0% { transform: translateY(18px); opacity: 0; }
  25% { opacity: 0.75; }
  60% { opacity: 0.35; }
  100% { transform: translateY(-70px); opacity: 0; }
}
@keyframes fvScroll {
  0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
  70% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(1); opacity: 0; }
}
@keyframes fvFadeUp {
  0% { transform: translateY(26px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}
@keyframes fvShootingStar {
  0% {
    transform: translateX(0) scaleX(0.2); opacity: 0;
    animation-timing-function: cubic-bezier(0.3, 0, 0.35, 1);
  }
  2.5% { opacity: 0.9; }
  6.5% {
    transform: translateX(150px) scaleX(1); opacity: 0.8;
    animation-timing-function: cubic-bezier(0.15, 0.55, 0.25, 1);
  }
  15% { transform: translateX(256px) scaleX(0.04); opacity: 0; }
  100% { transform: translateX(256px) scaleX(0.04); opacity: 0; }
}
@keyframes fvLoaderPulse {
  0% { opacity: 0.3; }
  100% { opacity: 0.9; }
}

/* ==========================================================================
   共通パーツ
   ========================================================================== */
.eyebrow {
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--navy);
}
/* 意図した位置で改行させたい語のかたまりに使う（孤立行対策。DESIGN.md §6 BUSINESSES参照） */
.nowrap {
  white-space: nowrap;
}
/* SP幅でのみ改行を入れたい箇所の<br>に使う（孤立行対策。PCでは非表示のためレイアウトに影響しない） */
.sp-break {
  display: none;
}
@media (max-width: 820px) {
  .sp-break {
    display: inline;
  }
}

/* ==========================================================================
   CONCEPT（DESIGN.md §6）
   ========================================================================== */
.concept {
  background: var(--bg);
  padding: clamp(100px, 11vw, 150px) var(--section-pad-x);
}
.concept__inner {
  max-width: 1160px;
  margin: 0 auto;
}
.concept__head {
  display: flex;
  align-items: baseline;
  gap: 28px;
  flex-wrap: wrap;
}
.concept__heading-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.concept__heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: 0.1em;
  color: var(--text);
}
.concept__tagline {
  font-family: var(--font-en);
  font-style: italic;
  font-size: clamp(17px, 1.6vw, 22px);
  letter-spacing: 0.1em;
  color: var(--text-sub);
}
.concept__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(16px, 2.5vw, 48px);
  margin-top: clamp(56px, 7vw, 80px);
}
.concept__card {
  background: var(--surface);
  padding: clamp(20px, 2.5vw, 44px);
}
.concept__card-label {
  font-family: var(--font-en);
  font-size: 17px;
  letter-spacing: 0.24em;
  color: var(--navy);
}
.concept__card-body {
  margin-top: 28px;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.4vw, 19px);
  line-height: 2.2;
  letter-spacing: 0.05em;
  color: var(--text);
  text-align: left;
}

@media (max-width: 820px) {
  .concept__cards {
    gap: clamp(24px, 4vw, 32px);
  }
}

/* ==========================================================================
   VALUES（濃紺帯。DESIGN.md §6, §8）
   ========================================================================== */
.values {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 100%);
  padding: clamp(80px, 10vw, 116px) var(--section-pad-x);
}
.values__inner {
  position: relative;
  max-width: 1160px;
  margin: 0 auto;
}
.values__label {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 17px;
  letter-spacing: 0.24em;
  color: var(--on-navy-accent);
}
.values__items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(36px, 4vw, 56px);
  margin-top: 52px;
}
.values__item {
  border-top: 1px solid rgba(204, 215, 230, 0.3);
  padding-top: 32px;
}
.values__number {
  font-family: var(--font-en);
  font-size: 20px;
  letter-spacing: 0.2em;
  color: var(--on-navy-accent);
}
.values__title {
  margin-top: 16px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(17px, 1.5vw, 20px);
  letter-spacing: 0.08em;
  color: var(--on-navy-strong);
}
.values__en {
  margin-top: 6px;
  font-family: var(--font-en);
  font-style: italic;
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--on-navy-accent);
}
.values__body {
  margin-top: 20px;
  font-size: 14px;
  line-height: 2;
  color: var(--on-navy-body);
  text-align: left;
}

@media (max-width: 820px) {
  .values__items {
    margin-top: 39px;
  }
}

/* ---- VALUES 背景装飾（DESIGN.md §8） ---- */
.values__ring {
  position: absolute;
  border-radius: 50%;
  border-style: solid;
  border-width: 1px;
}
.values__ring--1 {
  right: -220px; top: -200px; width: 620px; height: 620px;
  border-color: rgba(143, 166, 212, 0.22);
  animation: vRingBreath 11s ease-in-out infinite alternate;
}
.values__ring--2 {
  right: -100px; top: -320px; width: 900px; height: 900px;
  border-color: rgba(143, 166, 212, 0.12);
  animation: vRingBreath 15s ease-in-out infinite alternate-reverse;
}
.values__ripple {
  position: absolute;
  right: 90px; top: 110px;
  width: 620px; height: 620px;
  margin: -310px -310px 0 0;
  border-radius: 50%;
  border-style: solid;
  border-width: 1px;
  animation: vRipple 18s cubic-bezier(0.2, 0.6, 0.4, 1) infinite backwards;
}
.values__ripple--1 { border-color: rgba(143, 166, 212, 0.35); }
.values__ripple--2 { border-color: rgba(143, 166, 212, 0.25); animation-delay: 9s; }

@keyframes vRingBreath {
  0% { transform: scale(0.97); opacity: 0.55; }
  100% { transform: scale(1.05); opacity: 1; }
}
@keyframes vRipple {
  0% { transform: scale(0.3); opacity: 0; }
  20% { opacity: 0.4; }
  100% { transform: scale(1); opacity: 0; }
}

/* ==========================================================================
   理念の原点 + 代表（DESIGN.md §6）
   ========================================================================== */
.origin {
  background: var(--bg);
  padding: clamp(100px, 11vw, 150px) var(--section-pad-x);
}
.origin__inner {
  max-width: 880px;
  margin: 0 auto;
}
.origin__box {
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(24px, 4.5vw, 56px);
}
.origin__label {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--text-sub);
}
.origin__heading {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(24px, 2.2vw, 30px);
  letter-spacing: 0.12em;
  color: var(--text);
}
.origin__body {
  margin-top: 28px;
  font-size: 15.5px;
  line-height: 2.4;
  letter-spacing: 0.03em;
  color: var(--text-body);
  text-align: left;
}
.origin__heading + .origin__body {
  margin-top: 36px;
}
.rep {
  width: min(480px, 100%);
  margin: 56px 0 0 auto;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.rep__label {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--text-sub);
}
.rep__name {
  margin-top: 14px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 21px;
  letter-spacing: 0.14em;
  color: var(--text);
}
.rep__bio {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 2.1;
  color: var(--text-sub);
}

@media (max-width: 820px) {
  .origin__body {
    font-size: 14.5px;
    line-height: 2.1;
    letter-spacing: 0.02em;
  }
}

/* ==========================================================================
   BUSINESSES（DESIGN.md §6）
   ========================================================================== */
.business {
  background: var(--surface);
  padding: clamp(100px, 11vw, 150px) var(--section-pad-x);
}
.business__inner {
  max-width: 1300px;
  margin: 0 auto;
}
.business__head {
  display: flex;
  align-items: baseline;
  gap: 28px;
  flex-wrap: wrap;
}
.business__heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: 0.1em;
  color: var(--text);
}
.business__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(20px, 2.5vw, 32px);
  margin-top: clamp(48px, 6vw, 72px);
}
.business__card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(22px, 3vw, 40px);
  display: flex;
  flex-direction: column;
}
.business__card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.business__number {
  font-family: var(--font-en);
  font-size: 20px;
  letter-spacing: 0.2em;
  color: var(--navy);
}
.business__icon {
  height: 52px;
  width: auto;
  mix-blend-mode: multiply;
  opacity: 0.9;
}
.business__title {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 21px;
  line-height: 1.6;
  letter-spacing: 0.08em;
  color: var(--text);
  min-height: 3.2em;
}
.business__lead {
  margin-top: 12px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--navy);
}
.business__body {
  margin-top: 18px;
  font-size: 14px;
  line-height: 2.05;
  color: var(--text-sub);
  text-align: left;
}
.business__note {
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--text-mute);
}

@media (max-width: 820px) {
  .business__title {
    min-height: auto;
  }
}

/* ==========================================================================
   CONTACT（DESIGN.md §6, §7）
   ========================================================================== */
.contact {
  background: var(--bg);
  padding: clamp(100px, 11vw, 150px) var(--section-pad-x);
}
.contact__inner {
  max-width: 720px;
  margin: 0 auto;
}
.contact__intro {
  text-align: center;
}
.contact__heading {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: 0.12em;
  color: var(--text);
}
.contact__lead {
  margin-top: 28px;
  font-size: 15px;
  line-height: 2.2;
  color: var(--text-sub);
  text-align: center;
}

/* ---- フォーム（DESIGN.md §7） ---- */
.form {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 64px;
}
.form[hidden] {
  display: none;
}
.field__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.field__label-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.field label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.badge {
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 2px 8px;
}
.badge--required {
  background: var(--navy);
  color: var(--white);
}
.badge--optional {
  border: 1px solid var(--line);
  color: var(--text-sub);
}
.field input,
.field select,
.field textarea {
  margin-top: 10px;
  width: 100%;
  box-sizing: border-box;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--white);
  font-size: 16px;
  font-family: inherit;
  color: var(--text);
}
.field select {
  appearance: auto;
}
.field textarea {
  resize: vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--navy);
  outline: 2px solid rgba(10, 42, 107, 0.12);
}
.field__hint {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-mute);
}
.field__error {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--error);
}
.field__suggest {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-sub);
  animation: fieldFadeIn 0.4s cubic-bezier(0.2, 0.6, 0.2, 1) both;
}
.field__suggest-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: inherit;
  color: var(--navy);
  border-bottom: 1px solid var(--navy);
  cursor: pointer;
}
.field__suggest-btn:hover {
  color: var(--navy-deep);
  border-bottom-color: var(--navy-deep);
}
.field--appear {
  animation: fieldFadeIn 0.45s cubic-bezier(0.2, 0.6, 0.2, 1) both;
}
@keyframes fieldFadeIn {
  0% {
    transform: translateY(-8px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

.form__submit {
  text-align: center;
  margin-top: 8px;
}
.form__consent {
  margin-top: 1rem;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-sub);
  text-align: center;
}
.form__consent a {
  color: var(--navy);
}
.grecaptcha-badge {
  visibility: hidden;
}
.form__button {
  margin-top: 0;
  background: var(--navy);
  color: var(--white);
  font-size: 15px;
  letter-spacing: 0.12em;
  font-family: inherit;
  padding: 16px 72px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}
.form__button:hover {
  background: var(--navy-deep);
}
.form__error {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--error);
  text-align: center;
}

@media (max-width: 820px) {
  .contact__lead,
  .form__consent {
    text-align: left;
  }
  .contact__lead-break {
    display: none;
  }
}

/* ---- 送信完了パネル（DESIGN.md §6） ---- */
.done {
  margin-top: 64px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: clamp(32px, 5vw, 56px);
}
.done__heading {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--text);
}
.done__body {
  margin-top: 20px;
  font-size: 14.5px;
  line-height: 2.2;
  color: var(--text-body);
  text-align: left;
}
.done__box {
  margin-top: 28px;
  background: var(--surface);
  padding: 24px 28px;
}
.done__box-heading {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
}
.done__box-body {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 2.1;
  color: var(--text-sub);
  text-align: left;
}

/* ==========================================================================
   フッター（DESIGN.md §6）
   ========================================================================== */
.footer {
  background: var(--navy-deep);
  padding: clamp(56px, 7vw, 80px) var(--section-pad-x);
}
.footer__inner {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: center;
  text-align: center;
}
.footer__links {
  display: flex;
  justify-content: flex-end;
  gap: 32px;
  flex-wrap: wrap;
  width: 100%;
  margin-top: 8px;
}
.footer__links a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--on-navy-link);
  text-decoration: none;
}
.footer__links a:hover {
  color: #FFFFFF;
}
.footer__copyright {
  width: 100%;
  margin-top: 10px;
  text-align: right;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-navy-faint);
}

@media (max-width: 820px) {
  .footer {
    padding: 34px var(--section-pad-x);
  }
  .footer__inner {
    gap: 8px;
  }
}

/* ==========================================================================
   下層ページ共通（DESIGN.md §11）
   ========================================================================== */
.subheader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px clamp(24px, 5vw, 64px);
  background: var(--bg);
  border-bottom: 1px solid var(--line-soft);
}
.subheader__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.subheader__logo {
  height: 32px;
  width: auto;
}
.subheader__wordmark {
  font-family: var(--font-en);
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--navy);
}
.subheader__back {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-sub);
  text-decoration: none;
}
.subheader__back:hover {
  color: var(--navy);
}

.subfooter {
  background: var(--navy-deep);
  padding: 48px clamp(24px, 5vw, 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}
.subfooter a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--on-navy-link);
  text-decoration: none;
}
.subfooter a:hover {
  color: #FFFFFF;
}
.subfooter p {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-navy-faint);
}

.subpage-body {
  padding: clamp(64px, 8vw, 100px) clamp(24px, 5vw, 64px) clamp(80px, 10vw, 120px);
}
.subpage-body__inner {
  max-width: 760px;
  margin: 0 auto;
}

/* ==========================================================================
   /about/（DESIGN.md §11）
   ========================================================================== */
.about__label {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--text-sub);
}
.about__heading {
  margin-top: clamp(18px, 2.4vw, 22px);
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: 0.12em;
  color: var(--text);
}
.about__list {
  display: flex;
  flex-direction: column;
  margin-top: clamp(28px, 4vw, 56px);
  border-top: 1px solid var(--line);
}
.about__row {
  display: flex;
  flex-wrap: nowrap;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.about__row--wrap {
  flex-wrap: wrap;
  row-gap: 8px;
  padding: 26px 0;
}
.about__row dt {
  flex: 0 0 auto;
  width: clamp(96px, 26vw, 160px);
  padding-right: 16px;
  box-sizing: border-box;
  font-size: 14px;
  font-weight: 500;
  line-height: 2;
  letter-spacing: 0.08em;
  color: var(--navy);
}
.about__row dd {
  flex: 1 1 auto;
  margin: 0;
  font-size: 15px;
  line-height: 2;
  color: var(--text-body);
}
.about__row--wrap dd {
  flex: 1 1 240px;
}
.about__business-list {
  margin: 0;
  padding-left: 1.2em;
  display: flex;
  flex-direction: column;
  gap: 6px;
  list-style: disc;
}
.about__cta {
  margin-top: clamp(39px, 5vw, 56px);
  display: flex;
  justify-content: center;
}
.about__cta a {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  font-size: 15px;
  letter-spacing: 0.12em;
  padding: 16px 56px;
  border-radius: 3px;
  text-decoration: none;
}
.about__cta a:hover {
  background: var(--navy-deep);
}

/* ==========================================================================
   /privacy/（DESIGN.md §11）
   ========================================================================== */
.privacy h1 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: 0.12em;
  color: var(--text);
}
.privacy h1 + p {
  margin-top: 40px;
}
.privacy h2 {
  margin-top: 64px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.08em;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}
.privacy h2 + p {
  margin-top: 24px;
}
.privacy p {
  margin-top: 20px;
  font-size: 14.5px;
  line-height: 2.2;
  color: var(--text-body);
}
.privacy ul,
.privacy ol {
  margin-top: 16px;
  font-size: 14.5px;
  line-height: 2.2;
  color: var(--text-body);
}
.privacy ul {
  padding-left: 1.4em;
  list-style: disc;
}
.privacy ol {
  padding-left: 1.6em;
  list-style: decimal;
}
.privacy table {
  margin-top: 24px;
  border-collapse: collapse;
  width: 100%;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--text-body);
}
.privacy th,
.privacy td {
  border: 1px solid var(--line);
  padding: 12px 14px;
}
.privacy th {
  background: var(--surface);
  font-weight: 500;
  text-align: left;
}
.privacy td {
  vertical-align: top;
}
.privacy__subhead {
  margin-top: 24px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text);
}
.privacy__subhead + p {
  margin-top: 8px;
}
.privacy__date {
  margin-top: 72px;
  font-size: 14px;
  line-height: 2.2;
  color: var(--text-sub);
}

/* ==========================================================================
   404（DESIGN.md §13）
   ========================================================================== */
.notfound {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background: linear-gradient(170deg, #041838 0%, #0A2A6B 100%);
}
/* 装飾円のはみ出しは、この専用ラッパーで切り取る。
   body 側の overflow:hidden はビューポートへ伝播する仕様のため、body 自身では切り取れない
   （スクロールは止まるが、はみ出し領域は残る）。円を増やすほど影響が出るので層を分けている。 */
.notfound__decor {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.notfound__circle {
  position: absolute;
  border: 1px solid rgba(143, 166, 212, 0.2);
  border-radius: 50%;
}
/* 右上に2本を同心状に重ね、左下へ大小2本で受ける。対角の構図で中央のテキストを避ける */
.notfound__circle--1 { right: -140px; top: -120px; width: 520px; height: 520px; }
.notfound__circle--2 { right: -250px; top: -230px; width: 740px; height: 740px; border-color: rgba(143, 166, 212, 0.12); }
.notfound__circle--3 { left: -190px; bottom: -170px; width: 560px; height: 560px; border-color: rgba(143, 166, 212, 0.15); }
.notfound__circle--4 { left: -70px; bottom: 12%; width: 260px; height: 260px; border-color: rgba(143, 166, 212, 0.1); }
.notfound__brand {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px clamp(24px, 4.5vw, 64px);
  text-decoration: none;
}
.notfound__logo {
  height: 40px;
  width: auto;
}
.notfound__wordmark {
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: 0.08em;
  color: #F5F8FF;
}
.notfound__main {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 clamp(24px, 8vw, 64px);
  text-align: center;
}
.notfound__label {
  font-family: var(--font-en);
  font-weight: 400;
  font-size: 16px;
  letter-spacing: 0.3em;
  color: var(--on-navy-accent);
}
.notfound__number {
  margin-top: 20px;
  font-family: var(--font-en);
  font-weight: 400;
  font-size: clamp(64px, 12vw, 104px);
  letter-spacing: 0.1em;
  color: var(--on-navy-strong);
}
.notfound__text {
  margin-top: 32px;
  font-size: 14.5px;
  line-height: 2.2;
  letter-spacing: 0.02em;
  color: var(--on-navy-body);
}
.notfound__button {
  margin-top: 48px;
  display: inline-block;
  font-size: 15px;
  letter-spacing: 0.12em;
  color: #F5F8FF;
  padding: 16px 56px;
  border: 1px solid rgba(245, 248, 255, 0.5);
  border-radius: 3px;
  text-decoration: none;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.notfound__button:hover {
  background: rgba(245, 248, 255, 0.1);
  border-color: rgba(245, 248, 255, 0.9);
}

/* SPは装飾円が過剰に見えるため、下側の2本を非表示にして2本構成にする（Meg依頼・2026-08-17） */
@media (max-width: 820px) {
  .notfound__circle--3,
  .notfound__circle--4 {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}