/* ============================================================
   合同会社 結（MUSUBI）コーポレートサイト
   ============================================================ */

:root {
  --ink: #1a1a1a;
  --ink-soft: #4a4743;
  --gray: #7d776f;
  --line: #ddd7cc;
  --paper: #f6f4ef;
  --white: #ffffff;
  --accent: #8a7560;

  --font-en: "Cormorant Garamond", "Times New Roman", serif;
  --font-min: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;

  --container: 1160px;
  --gutter: clamp(20px, 4vw, 48px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --header-h: 84px;
}

/* --- リセット & ベース --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

address {
  font-style: normal;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 8px 16px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  top: 16px;
}

.sp-only {
  display: none;
}

.text + .text {
  margin-top: 1.2em;
}

.text {
  color: var(--ink-soft);
}

/* ============================================================
   ヘッダー
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(246, 244, 239, 0.94);
  border-color: var(--line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding-inline: var(--gutter);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
}

.brand__mark {
  width: 60px;
  height: auto;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__en {
  font-family: var(--font-en);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.brand__ja {
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--gray);
}

.gnav {
  display: flex;
  align-items: center;
  gap: 44px;
}

.gnav__list {
  display: flex;
  gap: 36px;
}

.gnav__list a {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
  transition: opacity 0.3s;
}

.gnav__list a:hover {
  opacity: 0.55;
}

.gnav__en {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.gnav__ja {
  font-size: 10px;
  color: var(--gray);
  letter-spacing: 0.12em;
}

.gnav__contact {
  font-family: var(--font-en);
  font-size: 16px;
  letter-spacing: 0.12em;
  padding: 8px 26px;
  border: 1px solid var(--ink);
  transition: background 0.3s, color 0.3s;
}

.gnav__contact:hover {
  background: var(--ink);
  color: var(--paper);
}

.menu-btn {
  display: none;
}

/* ============================================================
   ファーストビュー
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: calc(var(--header-h) + 40px) var(--gutter) 120px;
  background: var(--paper);
  overflow: hidden;
}

.hero__inner {
  width: 100%;
  max-width: 1180px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: clamp(40px, 7vw, 120px);
}

.hero__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__knot {
  width: 100%;
  max-width: 720px;
  overflow: visible;
}

.hero__knot path {
  fill: none;
  stroke: var(--ink);
  stroke-width: 2;
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}

.js .hero__knot path {
  stroke-dashoffset: 1;
  animation: knot-draw 3.2s var(--ease) 0.3s forwards;
}

@keyframes knot-draw {
  to {
    stroke-dashoffset: 0;
  }
}

.hero__wordmark {
  margin-top: clamp(20px, 3vw, 36px);
  padding-left: 0.42em;
  font-family: var(--font-en);
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 500;
  letter-spacing: 0.42em;
}

.hero__copy {
  writing-mode: vertical-rl;
  display: flex;
  flex-direction: column;
  gap: 0.6em;
  font-family: var(--font-min);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.2em;
}

.js .hero__wordmark,
.js .hero__copy span {
  opacity: 0;
  animation: fade-in 1.6s var(--ease) forwards;
}

.js .hero__copy span:nth-child(1) { animation-delay: 1.4s; }
.js .hero__copy span:nth-child(2) { animation-delay: 1.9s; }
.js .hero__wordmark { animation-delay: 2.6s; }

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero__meta {
  position: absolute;
  left: var(--gutter);
  bottom: 36px;
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.hero__scroll {
  position: absolute;
  right: var(--gutter);
  bottom: 0;
  height: 110px;
  padding-right: 18px;
  writing-mode: vertical-rl;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gray);
}

.hero__scroll::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(var(--ink) 50%, var(--line) 50%);
  background-size: 1px 200%;
  animation: scroll-line 2.4s ease-in-out infinite;
}

@keyframes scroll-line {
  from { background-position: 0 100%; }
  to { background-position: 0 -100%; }
}

/* 写真帯 */
.band {
  height: clamp(260px, 46vw, 640px);
  overflow: hidden;
}

.band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 28%;
}

/* ============================================================
   セクション共通
   ============================================================ */
.section {
  padding-block: clamp(88px, 11vw, 160px);
}

.section--white {
  background: var(--white);
}

.section--paper {
  background: var(--paper);
}

.section-head {
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-head__label {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0 14px;
  font-family: var(--font-en);
  font-size: 17px;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.section-head__label .num {
  position: relative;
  padding-right: 54px;
  color: var(--gray);
}

.section-head__label .num::after {
  content: "";
  position: absolute;
  right: 0;
  top: 55%;
  width: 40px;
  height: 1px;
  background: var(--line);
}

.section-head__label .ja {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
}

.section-head__title {
  margin-top: 20px;
  font-family: var(--font-min);
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: 0.08em;
}

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

.section-head--center .section-head__label {
  justify-content: center;
}

.section-head--row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 24px 8vw;
}

.section-head__lead {
  color: var(--ink-soft);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 36px;
  padding-bottom: 6px;
  font-size: 14px;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--ink);
  transition: gap 0.3s var(--ease), opacity 0.3s;
}

.link-arrow::after {
  content: "→";
  font-family: var(--font-en);
  font-size: 18px;
  line-height: 1;
}

.link-arrow--ext::after {
  content: "↗";
}

.link-arrow:hover {
  gap: 26px;
}

/* ============================================================
   01 私たちについて
   ============================================================ */
.about {
  display: grid;
  grid-template-columns: 5fr 7fr;
  align-items: center;
  gap: 6vw;
}

.about__kanji {
  font-family: var(--font-min);
  font-size: clamp(160px, 22vw, 320px);
  line-height: 1;
  color: var(--paper);
  text-align: center;
  -webkit-text-stroke: 1px var(--line);
  user-select: none;
}

/* ============================================================
   02 事業内容
   ============================================================ */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 3vw, 48px);
}

.biz-card {
  display: flex;
  flex-direction: column;
}

.biz-card__photo {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--line);
}

.biz-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}

.biz-card:hover .biz-card__photo img {
  transform: scale(1.04);
}

.biz-card__num {
  margin-top: 24px;
  font-family: var(--font-en);
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.biz-card__num span {
  margin-left: 10px;
  font-style: italic;
}

.biz-card__title {
  margin-top: 4px;
  font-family: var(--font-min);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.biz-card__text {
  margin-top: 14px;
  color: var(--ink-soft);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tags li {
  padding: 2px 12px;
  font-size: 12px;
  border: 1px solid var(--line);
  background: var(--white);
}

.biz-card .link-arrow {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 28px;
  border-bottom: 0;
  text-decoration: underline;
  text-underline-offset: 8px;
  text-decoration-thickness: 1px;
}

/* 事業の連携 */
.synergy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px 6vw;
  margin-top: clamp(72px, 9vw, 128px);
  padding: clamp(40px, 5vw, 72px);
  background: var(--white);
}

.synergy__en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 18px;
  color: var(--gray);
}

.synergy__title {
  margin: 8px 0 24px;
  font-family: var(--font-min);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: 0.08em;
}

.synergy__diagram svg {
  display: block;
  width: 100%;
  max-width: 440px;
  margin-inline: auto;
  overflow: visible;
}

.dg-lines line {
  stroke: var(--ink);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.dg-node circle {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 1;
}

.dg-node text,
.dg-core text {
  text-anchor: middle;
  font-family: var(--font-min);
  font-size: 17px;
  letter-spacing: 0.06em;
  fill: var(--ink);
}

.dg-node text.sub {
  font-family: var(--font-body);
  font-size: 11px;
  fill: var(--gray);
}

.dg-core circle {
  fill: var(--ink);
}

.dg-core text {
  fill: var(--paper);
  font-size: 16px;
}

/* ============================================================
   03 価値観
   ============================================================ */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.value {
  padding: 48px clamp(20px, 3vw, 44px) 8px;
  text-align: center;
}

.value + .value {
  border-left: 1px solid var(--line);
}

.value__num {
  font-family: var(--font-en);
  font-size: 15px;
  color: var(--gray);
}

.value__kanji {
  margin-top: 8px;
  font-family: var(--font-min);
  font-size: clamp(40px, 4.4vw, 56px);
  line-height: 1.4;
  letter-spacing: 0.1em;
}

.value__en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 17px;
  color: var(--accent);
}

.value__title {
  margin-top: 24px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.value__text {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  text-align: left;
}

/* ============================================================
   04 代表メッセージ
   ============================================================ */
.message {
  display: grid;
  grid-template-columns: 5fr 7fr;
  align-items: center;
  gap: 48px 7vw;
}

.message__photo {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.message__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
}

.message__title {
  margin: 20px 0 32px;
  font-family: var(--font-min);
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: 0.08em;
}

.message__sign {
  margin-top: 36px;
  font-family: var(--font-min);
  font-size: 22px;
  letter-spacing: 0.16em;
}

.message__sign span {
  display: block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.message__profile {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--gray);
}

/* ============================================================
   05 地域とともに
   ============================================================ */
.community {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 2.4vw, 32px);
}

.community__item {
  display: flex;
  flex-direction: column;
  padding: 40px clamp(24px, 2.6vw, 36px);
  background: var(--paper);
}

.community__num {
  font-family: var(--font-en);
  font-size: 34px;
  line-height: 1;
  color: var(--line);
}

.community__title {
  margin: 20px 0 16px;
  font-family: var(--font-min);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.08em;
}

.community__sdgs {
  margin-top: auto;
  padding-top: 24px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

/* ============================================================
   06 お知らせ
   ============================================================ */
.news {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 32px 6vw;
}

.news .section-head {
  margin-bottom: 0;
}

.news .link-arrow {
  margin-top: 28px;
}

.news__list {
  border-top: 1px solid var(--line);
}

.news__list li {
  border-bottom: 1px solid var(--line);
}

.news__list a {
  display: grid;
  grid-template-columns: 110px 96px 1fr;
  align-items: center;
  gap: 8px 20px;
  padding: 26px 8px;
  transition: background 0.3s;
}

.news__list a:hover {
  background: var(--white);
}

.news__list time {
  font-variant-numeric: lining-nums;
  font-family: var(--font-en);
  font-size: 17px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.news__cat {
  justify-self: start;
  padding: 0 10px;
  font-size: 11px;
  border: 1px solid var(--line);
}

/* ============================================================
   07 会社概要
   ============================================================ */
.company {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 48px 6vw;
  align-items: start;
}

.outline {
  border-top: 1px solid var(--ink);
}

.outline div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 8px 24px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
}

.outline dt {
  font-size: 13px;
  color: var(--gray);
  letter-spacing: 0.12em;
}

.outline dd {
  font-size: 14px;
  line-height: 1.9;
}

.outline dd a {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--line);
}

.outline dd a:hover {
  text-decoration-color: var(--ink);
}

.company__map {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  margin-top: clamp(0px, 7vw, 104px);
}

.company__map iframe {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 0;
  filter: grayscale(1) contrast(0.95);
}

.company__access {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ============================================================
   お問い合わせ
   ============================================================ */
.contact {
  padding-block: clamp(80px, 10vw, 136px);
  background: var(--ink);
  color: var(--paper);
}

.contact .text {
  color: rgba(246, 244, 239, 0.75);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px 6vw;
}

.contact__en {
  font-family: var(--font-en);
  font-size: clamp(44px, 5vw, 64px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.08em;
}

.contact__title {
  margin: 12px 0 20px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.contact__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-left: 6vw;
  border-left: 1px solid rgba(246, 244, 239, 0.2);
}

.contact__tel {
  font-variant-numeric: lining-nums;
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-family: var(--font-en);
  font-size: clamp(34px, 3.6vw, 46px);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.contact__tel-label {
  font-size: 15px;
  letter-spacing: 0.16em;
  color: rgba(246, 244, 239, 0.6);
}

.contact__hours {
  font-size: 13px;
  color: rgba(246, 244, 239, 0.6);
}

.btn-line {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  min-width: 300px;
  margin-top: 28px;
  padding: 18px 28px;
  font-size: 14px;
  letter-spacing: 0.12em;
  border: 1px solid var(--paper);
  transition: background 0.3s, color 0.3s;
}

.btn-line::after {
  content: "→";
  font-family: var(--font-en);
  font-size: 18px;
}

.btn-line:hover {
  background: var(--paper);
  color: var(--ink);
}

/* ============================================================
   フッター
   ============================================================ */
.site-footer {
  background: #111;
  color: rgba(246, 244, 239, 0.8);
  border-top: 1px solid rgba(246, 244, 239, 0.12);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px 6vw;
  padding-block: 72px 48px;
}

.brand--footer {
  color: var(--paper);
}

.brand--footer .brand__mark {
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

.brand--footer .brand__ja {
  color: rgba(246, 244, 239, 0.6);
}

.site-footer__address {
  margin-top: 24px;
  font-size: 13px;
  line-height: 2;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  font-size: 13px;
}

.site-footer__nav li + li {
  margin-top: 10px;
}

.site-footer__nav a:hover {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 6px;
}

.site-footer__certs {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 32px;
  border-top: 1px solid rgba(246, 244, 239, 0.12);
}

.site-footer__certs a {
  padding: 8px 16px;
  font-size: 11px;
  letter-spacing: 0.08em;
  border: 1px solid rgba(246, 244, 239, 0.3);
  transition: background 0.3s, color 0.3s;
}

.site-footer__certs a:hover,
.site-footer__certs a[aria-current="page"] {
  background: var(--paper);
  color: var(--ink);
}

.site-footer__copy {
  padding: 20px var(--gutter) 28px;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-align: center;
  color: rgba(246, 244, 239, 0.5);
}

/* ============================================================
   下層ページ共通
   ============================================================ */
.page-hero {
  padding: calc(var(--header-h) + clamp(48px, 7vw, 96px)) 0 clamp(56px, 7vw, 96px);
  background: var(--paper);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-size: 12px;
  color: var(--gray);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 12px;
  color: var(--line);
}

.breadcrumb a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-hero__en {
  margin-top: clamp(32px, 5vw, 56px);
  font-family: var(--font-en);
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.page-hero__title {
  margin-top: 16px;
  font-family: var(--font-min);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.1em;
}

.page-hero__lead {
  max-width: 760px;
  margin-top: 28px;
  color: var(--ink-soft);
}

.container--narrow {
  max-width: calc(880px + var(--gutter) * 2);
}

/* 宣言・認定の概要 */
.decl-summary {
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: center;
  gap: 32px 48px;
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid var(--line);
}

.decl-summary__logo {
  display: grid;
  place-content: center;
  gap: 8px;
  aspect-ratio: 4 / 3;
  padding: 16px;
  font-family: var(--font-min);
  font-size: 14px;
  line-height: 1.7;
  text-align: center;
  background: var(--paper);
  border: 1px dashed var(--line);
}

.decl-summary__logo-note {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--gray);
}

.decl-summary__meta div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 4px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.decl-summary__meta div:first-child {
  padding-top: 0;
}

.decl-summary__meta dt {
  font-size: 13px;
  color: var(--gray);
  letter-spacing: 0.08em;
}

.decl-summary__meta dd {
  font-size: 14px;
}

.decl-summary__meta a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* 本文 */
.doc-section {
  margin-top: clamp(64px, 8vw, 104px);
}

.doc-title {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  font-family: var(--font-min);
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--ink);
}

.doc-title .num {
  font-family: var(--font-en);
  font-size: 16px;
  color: var(--gray);
}

.doc-section > .link-arrow {
  margin-top: 28px;
}

.doc-note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--gray);
}

.doc-note a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* 番号付きの取り組みリスト */
.rule-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 8px 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.rule-list li:first-child {
  padding-top: 4px;
}

.rule-list__num {
  font-family: var(--font-en);
  font-size: 30px;
  line-height: 1.2;
  color: var(--gray);
}

.rule-list__title {
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

/* 方針・宣言文 */
.decl-doc {
  padding: clamp(28px, 5vw, 56px);
  background: var(--paper);
}

.decl-doc__list {
  counter-reset: decl;
  margin-top: 32px;
}

.decl-doc__list > li {
  counter-increment: decl;
  position: relative;
  padding-left: 2.2em;
}

.decl-doc__list > li + li {
  margin-top: 28px;
}

.decl-doc__list > li::before {
  content: counter(decl) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-en);
  font-size: 20px;
  line-height: 1.5;
  color: var(--gray);
}

.decl-doc__list h3 {
  margin-bottom: 8px;
  font-family: var(--font-min);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.06em;
}

.decl-doc__sub {
  margin-top: 16px;
  counter-reset: sub;
}

.decl-doc__sub div {
  counter-increment: sub;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.decl-doc__sub dt {
  font-size: 14px;
  font-weight: 500;
}

.decl-doc__sub dt::before {
  content: "（" counter(sub) "）";
  color: var(--gray);
}

.decl-doc__sub dd {
  margin-top: 4px;
  font-size: 14px;
  color: var(--ink-soft);
}

.decl-doc__bullets {
  margin: 10px 0 10px 1.2em;
  list-style: disc;
}

.decl-doc__bullets li {
  margin: 2px 0;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.9;
}

.decl-doc__contact {
  margin-top: 14px;
  padding: 20px 24px;
  font-size: 14px;
  line-height: 2;
  background: var(--white);
}

.decl-doc .text a,
.decl-doc__contact a {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--line);
}

.decl-doc .text a:hover,
.decl-doc__contact a:hover {
  text-decoration-color: var(--ink);
}

.decl-doc__sign {
  margin-top: 40px;
  font-family: var(--font-min);
  font-size: 15px;
  line-height: 2;
  text-align: right;
}

/* 想定リスク */
.risk-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.risk-grid li {
  padding: 24px 28px;
  background: var(--paper);
}

.risk-grid h3 {
  font-family: var(--font-min);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.risk-grid p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* そのほかの取り組み */
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.related-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 72px 32px 36px;
  background: var(--white);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.related-card::after {
  content: "→";
  position: absolute;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-size: 22px;
  transition: right 0.3s var(--ease);
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(26, 26, 26, 0.06);
}

.related-card:hover::after {
  right: 24px;
}

.related-card__en {
  font-family: var(--font-en);
  font-style: italic;
  font-size: 15px;
  color: var(--gray);
}

.related-card__title {
  margin-top: 2px;
  font-family: var(--font-min);
  font-size: 20px;
  letter-spacing: 0.08em;
}

.related-card__text {
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* モック確認用メモ（要確認表示のときだけ見える・本番では削除） */
.mock-note {
  display: none;
}

.show-tbd .mock-note {
  display: block;
  margin-bottom: 20px;
  padding: 12px 16px;
  font-size: 12px;
  color: #6b4d12;
  background: #fbf3df;
  border: 1px dashed rgba(201, 157, 72, 0.9);
}

/* ============================================================
   お問い合わせフォーム
   ============================================================ */
.page-hero--center {
  text-align: center;
}

.page-hero--center .page-hero__en {
  margin-top: 0;
}

.thanks .text {
  text-align: center;
}

.form-tel {
  margin-bottom: clamp(40px, 5vw, 64px);
  padding: 28px 24px;
  text-align: center;
  background: var(--paper);
}

.thanks .form-tel {
  margin: clamp(40px, 5vw, 56px) 0;
}

.form-tel__label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.form-tel__num {
  font-family: var(--font-en);
  font-variant-numeric: lining-nums;
  font-size: clamp(32px, 4.4vw, 44px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.form-tel__hours {
  font-size: 13px;
  color: var(--gray);
}

.form-alert {
  margin-bottom: 32px;
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.9;
}

.form-alert--error {
  color: #8c2f16;
  background: #fbf0ec;
  border: 1px solid #e0c3b8;
}

.form__row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 8px 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.form__row:first-of-type {
  border-top: 1px solid var(--line);
}

.form__label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-top: 12px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.form__req {
  padding: 1px 8px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--white);
  background: var(--accent);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0;
  transition: border-color 0.3s;
  -webkit-appearance: none;
  appearance: none;
}

.form__select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 22px) 55%, calc(100% - 16px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 44px;
}

.form__textarea {
  resize: vertical;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--ink);
  outline: 2px solid transparent;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: #b5aea3;
}

.form__help {
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray);
}

.form__error {
  margin-top: 8px;
  font-size: 13px;
  color: #8c2f16;
}

.form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__agree {
  padding: 32px 0;
  text-align: center;
}

.form__check {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  cursor: pointer;
}

.form__check input {
  width: 20px;
  height: 20px;
  accent-color: var(--ink);
}

.form__check a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.form__check .form__req {
  margin-left: 10px;
}

.form__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
}

.btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-width: 320px;
  padding: 20px 40px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}

.btn-solid::after {
  content: "→";
  font-family: var(--font-en);
  font-size: 18px;
}

.btn-solid:hover {
  color: var(--ink);
  background: transparent;
}

.btn-back {
  padding: 8px 16px;
  font-family: inherit;
  font-size: 14px;
  color: var(--gray);
  background: none;
  border: 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: color 0.3s, border-color 0.3s;
}

.btn-back:hover {
  color: var(--ink);
  border-color: var(--ink);
}

/* 確認画面 */
.form-confirm {
  margin-bottom: 40px;
  border-top: 1px solid var(--line);
}

.form-confirm div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 8px 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.form-confirm dt {
  font-size: 14px;
  color: var(--gray);
  letter-spacing: 0.06em;
}

.form-confirm dd {
  font-size: 15px;
  line-height: 1.9;
  word-break: break-word;
}

.form-confirm__empty {
  color: var(--gray);
}

/* ============================================================
   スクロール表示
   ============================================================ */
.js .js-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
}

.js .js-reveal.is-inview {
  opacity: 1;
  transform: none;
}

/* ============================================================
   モック確認用：要確認箇所のハイライト（本番では削除）
   ============================================================ */
.show-tbd span.tbd {
  background: linear-gradient(transparent 60%, rgba(222, 180, 96, 0.35) 60%);
}

.show-tbd .tbd:not(span) {
  position: relative;
  outline: 1px dashed rgba(201, 157, 72, 0.9);
  outline-offset: 6px;
}

.show-tbd .tbd::after {
  content: "要確認";
  display: inline-block;
  margin-left: 6px;
  padding: 0 6px;
  font-family: var(--font-body);
  font-size: 10px;
  font-style: normal;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.06em;
  vertical-align: middle;
  color: #6b4d12;
  background: #f1dfb4;
  border-radius: 2px;
}

.show-tbd .tbd:not(span)::after {
  position: absolute;
  top: -15px;
  right: -6px;
  margin: 0;
}

.mock-chip {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  z-index: 60;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 12px;
  color: #6b4d12;
  background: #f1dfb4;
  border: 1px solid #d9b96e;
  border-radius: 999px;
  cursor: pointer;
}

.mock-chip[aria-pressed="false"] {
  color: var(--gray);
  background: var(--white);
  border-color: var(--line);
}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 1080px) {
  .gnav__list {
    gap: 24px;
  }

  .gnav {
    gap: 28px;
  }
}

@media (max-width: 960px) {
  :root {
    --header-h: 68px;
  }

  body {
    font-size: 14px;
  }

  .sp-only {
    display: inline;
  }

  /* ナビ */
  .menu-btn {
    position: relative;
    z-index: 70;
    display: block;
    width: 44px;
    height: 44px;
    background: none;
    border: 0;
    cursor: pointer;
  }

  .menu-btn__line {
    position: absolute;
    left: 10px;
    width: 24px;
    height: 1px;
    background: var(--ink);
    transition: transform 0.4s var(--ease), top 0.4s var(--ease);
  }

  .menu-btn__line:nth-child(1) { top: 18px; }
  .menu-btn__line:nth-child(2) { top: 26px; }

  .nav-open .menu-btn__line:nth-child(1) { top: 22px; transform: rotate(20deg); }
  .nav-open .menu-btn__line:nth-child(2) { top: 22px; transform: rotate(-20deg); }

  .gnav {
    position: fixed;
    inset: 0;
    z-index: 65;
    flex-direction: column;
    justify-content: center;
    gap: 40px;
    background: var(--paper);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
  }

  .nav-open .gnav {
    opacity: 1;
    visibility: visible;
  }

  .nav-open {
    overflow: hidden;
  }

  .gnav__list {
    flex-direction: column;
    gap: 22px;
  }

  .gnav__en {
    font-size: 24px;
  }

  .gnav__ja {
    font-size: 11px;
  }

  .brand__mark {
    width: 50px;
  }

  .brand__en {
    font-size: 17px;
  }

  /* ファーストビュー */
  .hero__inner {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 48px;
  }

  .hero__copy {
    writing-mode: horizontal-tb;
    flex-direction: column;
    gap: 0;
    font-size: clamp(17px, 4.6vw, 24px);
    line-height: 2;
    letter-spacing: 0.1em;
    text-align: center;
  }

  .hero__meta {
    display: none;
  }

  .hero__scroll {
    right: 50%;
    transform: translateX(50%);
    height: 80px;
    padding-right: 0;
    writing-mode: horizontal-tb;
    padding-top: 0;
    font-size: 0;
  }

  .hero__scroll::after {
    right: 50%;
  }

  /* セクション */
  .section-head--row,
  .about,
  .synergy,
  .message,
  .news,
  .company,
  .contact__inner,
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .about__kanji {
    display: none;
  }

  .section-head__title,
  .message__title {
    font-size: clamp(20px, 5.4vw, 26px);
  }

  .biz-grid,
  .community {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-inline: auto;
  }

  .biz-grid {
    gap: 56px;
  }

  .values {
    grid-template-columns: 1fr;
    border-top: 0;
  }

  .value {
    padding: 40px 8px;
    border-top: 1px solid var(--line);
  }

  .value + .value {
    border-left: 0;
  }

  .value__text {
    text-align: center;
  }

  .message__photo {
    max-width: 360px;
  }

  .news__list a {
    grid-template-columns: auto 1fr;
    padding: 20px 4px;
  }

  .news__title {
    grid-column: 1 / -1;
  }

  .outline div {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 16px 4px;
  }

  .company__map {
    position: static;
    margin-top: 0;
  }

  .company__map iframe {
    aspect-ratio: 4 / 3;
  }

  .contact__actions {
    padding-left: 0;
    padding-top: 36px;
    border-left: 0;
    border-top: 1px solid rgba(246, 244, 239, 0.2);
  }

  .btn-line {
    min-width: 0;
    width: 100%;
  }

  .mock-chip {
    left: 16px;
    transform: none;
  }

  /* 下層ページ */
  .decl-summary {
    grid-template-columns: 1fr;
  }

  .decl-summary__logo {
    width: 100%;
    max-width: 240px;
  }

  .decl-summary__meta div {
    grid-template-columns: 88px 1fr;
    gap: 4px 12px;
  }

  .rule-list li {
    grid-template-columns: 48px 1fr;
  }

  .rule-list__num {
    font-size: 24px;
  }

  .decl-doc__sign {
    text-align: left;
  }

  .risk-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  /* フォーム */
  .form__row,
  .form-confirm div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .form__label {
    padding-top: 0;
  }

  .btn-solid {
    min-width: 0;
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .hero__knot path,
  .js .hero__wordmark,
  .js .hero__copy span,
  .hero__scroll::after {
    animation: none;
    opacity: 1;
    stroke-dashoffset: 0;
  }

  .js .js-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}