/*
Theme Name: Kyutto Corporate
Theme URI: https://example.com/
Author: Kyutto!
Description: 合同会社キュット専用のオリジナル・コーポレートテーマです。ブランド思想「見落とされたニーズに、ちょうどいい答えを。」を軸に設計しています。
Version: 1.0.1
Requires at least: 6.0
Requires PHP: 8.0
Text Domain: kyutto-corporate
*/

:root {
  --kyutto-navy: #0b2b45;
  --kyutto-navy-2: #123e62;
  --kyutto-orange: #ff8a21;
  --kyutto-orange-dark: #e66f08;
  --kyutto-teal: #0e6e63;
  --kyutto-ink: #182331;
  --kyutto-muted: #667386;
  --kyutto-line: #dfe5eb;
  --kyutto-soft: #f4f7fa;
  --kyutto-white: #ffffff;
  --kyutto-shadow: 0 18px 50px rgba(11, 43, 69, 0.10);
  --kyutto-radius-sm: 12px;
  --kyutto-radius: 22px;
  --kyutto-radius-lg: 34px;
  --kyutto-container: 1180px;
  --kyutto-header-height: 78px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--kyutto-ink);
  background: var(--kyutto-white);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(255, 138, 33, 0.55);
  outline-offset: 3px;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.container {
  width: min(calc(100% - 40px), var(--kyutto-container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: 10px 16px;
  background: var(--kyutto-navy);
  color: #fff;
  border-radius: 8px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--kyutto-header-height);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(11, 43, 69, 0.08);
  backdrop-filter: blur(16px);
}

.admin-bar .site-header {
  top: 32px;
}

.site-header__inner {
  min-height: var(--kyutto-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-branding {
  flex: 0 0 auto;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand-logo {
  display: block;
  width: 178px;
  height: auto;
}

.site-footer .brand-logo {
  width: 190px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav .menu,
.footer-nav .menu {
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--kyutto-navy);
  font-size: 14px;
  font-weight: 700;
}

.site-nav .current-menu-item > a::after,
.site-nav a:hover::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--kyutto-orange);
  border-radius: 999px;
}

.header-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  color: #fff;
  background: var(--kyutto-orange);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(255, 138, 33, 0.22);
}

.header-contact:hover {
  background: var(--kyutto-orange-dark);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: 12px;
}

.menu-toggle__bars,
.menu-toggle__bars::before,
.menu-toggle__bars::after {
  display: block;
  width: 20px;
  height: 2px;
  margin: auto;
  content: "";
  background: var(--kyutto-navy);
  border-radius: 99px;
  transition: 0.2s ease;
}

.menu-toggle__bars {
  position: relative;
}

.menu-toggle__bars::before {
  position: absolute;
  top: -6px;
  left: 0;
}

.menu-toggle__bars::after {
  position: absolute;
  top: 6px;
  left: 0;
}

.menu-open .menu-toggle__bars {
  background: transparent;
}

.menu-open .menu-toggle__bars::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-open .menu-toggle__bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-main {
  min-height: 60vh;
  overflow: hidden;
}

.section {
  padding: 96px 0;
}

.section--soft {
  background: var(--kyutto-soft);
}

.section--navy {
  color: #fff;
  background: var(--kyutto-navy);
}

.section-header {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-header--center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  color: var(--kyutto-orange-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 24px;
  height: 2px;
  content: "";
  background: currentColor;
}

.section-title {
  margin-bottom: 16px;
  color: var(--kyutto-navy);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800;
}

.section--navy .section-title,
.section--navy .section-copy {
  color: #fff;
}

.section-copy {
  margin-bottom: 0;
  color: var(--kyutto-muted);
  font-size: 17px;
}

.hero {
  position: relative;
  min-height: 700px;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 83% 22%, rgba(11, 43, 69, 0.08) 0 30px, transparent 31px),
    radial-gradient(circle at 75% 72%, rgba(255, 138, 33, 0.10) 0 20px, transparent 21px),
    linear-gradient(135deg, #ffffff 0%, #f4f8fb 100%);
}

.hero::after {
  position: absolute;
  right: -120px;
  bottom: -220px;
  width: 620px;
  height: 620px;
  content: "";
  background: rgba(255, 255, 255, 0.70);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(11, 43, 69, 0.03);
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: 80px;
  padding: 86px 0;
}

.hero__title {
  max-width: 780px;
  margin-bottom: 28px;
  color: var(--kyutto-navy);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.28;
}

.hero__copy {
  max-width: 680px;
  margin-bottom: 34px;
  color: #4e5d6e;
  font-size: clamp(16px, 1.7vw, 19px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 24px;
  color: #fff;
  background: var(--kyutto-navy);
  border: 0;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.button::after {
  content: "→";
  font-size: 18px;
  line-height: 1;
}

.button:hover {
  background: var(--kyutto-navy-2);
  box-shadow: 0 14px 28px rgba(11, 43, 69, 0.18);
  transform: translateY(-2px);
}

.button--orange {
  background: var(--kyutto-orange);
}

.button--orange:hover {
  background: var(--kyutto-orange-dark);
}

.button--outline {
  color: var(--kyutto-navy);
  background: transparent;
  border: 1px solid rgba(11, 43, 69, 0.22);
}

.button--outline:hover {
  color: #fff;
}

.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 430px;
}

.hero__mark-wrap {
  position: relative;
  z-index: 2;
  display: grid;
  width: min(360px, 78vw);
  aspect-ratio: 1;
  place-items: center;
  background: rgba(255, 255, 255, 0.80);
  border: 1px solid rgba(11, 43, 69, 0.08);
  border-radius: 42% 58% 48% 52% / 56% 42% 58% 44%;
  box-shadow: var(--kyutto-shadow);
  transform: rotate(-4deg);
}

.hero__mark {
  width: 52%;
  transform: rotate(4deg);
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, #d9e0e7);
  box-shadow: 0 20px 40px rgba(11, 43, 69, 0.12);
}

.hero__orb--one {
  top: 25px;
  right: -8px;
  width: 64px;
  height: 64px;
}

.hero__orb--two {
  bottom: 30px;
  left: -18px;
  width: 44px;
  height: 44px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.card {
  position: relative;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: var(--kyutto-radius);
  box-shadow: 0 12px 30px rgba(11, 43, 69, 0.06);
}

.card__body {
  padding: 28px;
}

.card__icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin-bottom: 20px;
  color: var(--kyutto-navy);
  background: #eff4f8;
  border-radius: 18px;
  place-items: center;
}

.card__icon svg {
  width: 30px;
  height: 30px;
}

.card__title {
  margin-bottom: 12px;
  color: var(--kyutto-navy);
  font-size: 21px;
  font-weight: 800;
}

.card__copy {
  margin-bottom: 18px;
  color: var(--kyutto-muted);
  font-size: 15px;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--kyutto-navy);
  font-size: 14px;
  font-weight: 800;
}

.card__link::after {
  content: "→";
  color: var(--kyutto-orange);
}

.business-card__stage {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 4px 10px;
  color: var(--kyutto-teal);
  background: rgba(14, 110, 99, 0.10);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.business-card__stage--development {
  color: #a95100;
  background: rgba(255, 138, 33, 0.13);
}

.principles {
  overflow: hidden;
  background: var(--kyutto-navy);
  border-radius: var(--kyutto-radius-lg);
}

.principles__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle {
  position: relative;
  padding: 52px 42px;
  color: #fff;
  text-align: center;
}

.principle + .principle::before {
  position: absolute;
  top: 18%;
  bottom: 18%;
  left: 0;
  width: 1px;
  content: "";
  background: rgba(255, 255, 255, 0.16);
}

.principle__icon {
  display: grid;
  width: 64px;
  height: 64px;
  margin: 0 auto 22px;
  color: var(--kyutto-orange);
  border: 1px solid rgba(255, 138, 33, 0.55);
  border-radius: 50%;
  place-items: center;
}

.principle__icon svg {
  width: 31px;
  height: 31px;
}

.principle h3 {
  margin-bottom: 12px;
  font-size: 25px;
}

.principle p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 70px;
}

.brand-story {
  position: relative;
  display: grid;
  min-height: 430px;
  place-items: center;
  background: linear-gradient(145deg, #eff4f8, #fff);
  border-radius: var(--kyutto-radius-lg);
}

.brand-story__mark {
  width: 190px;
}

.quote-card {
  position: absolute;
  right: 26px;
  bottom: 26px;
  max-width: 290px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: 16px;
  box-shadow: var(--kyutto-shadow);
}

.quote-card p {
  margin-bottom: 10px;
  color: var(--kyutto-navy);
  font-weight: 800;
}

.quote-card small {
  color: var(--kyutto-muted);
}

.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--kyutto-line);
}

.news-item {
  border-bottom: 1px solid var(--kyutto-line);
}

.news-item a {
  display: grid;
  grid-template-columns: 130px 120px minmax(0, 1fr) 30px;
  align-items: center;
  gap: 18px;
  min-height: 82px;
}

.news-item a:hover .news-item__title {
  color: var(--kyutto-orange-dark);
}

.news-item__date {
  color: var(--kyutto-muted);
  font-size: 14px;
}

.news-item__category {
  display: inline-flex;
  justify-content: center;
  padding: 5px 10px;
  color: var(--kyutto-navy);
  background: var(--kyutto-soft);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.news-item__title {
  margin-bottom: 0;
  color: var(--kyutto-navy);
  font-weight: 700;
  transition: color 0.18s ease;
}

.news-item__arrow {
  color: var(--kyutto-orange);
  font-size: 20px;
}

.contact-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  padding: 54px 60px;
  color: #fff;
  background: linear-gradient(135deg, var(--kyutto-navy), #123f65);
  border-radius: var(--kyutto-radius-lg);
  box-shadow: var(--kyutto-shadow);
}

.contact-cta h2 {
  margin-bottom: 10px;
  font-size: clamp(28px, 4vw, 42px);
}

.contact-cta p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
}

.page-hero {
  padding: 96px 0 72px;
  background: linear-gradient(135deg, #f6f9fb, #fff);
  border-bottom: 1px solid var(--kyutto-line);
}

.page-hero__title {
  margin-bottom: 12px;
  color: var(--kyutto-navy);
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 900;
}

.page-hero__lead {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--kyutto-muted);
  font-size: 17px;
}

.content-narrow {
  width: min(calc(100% - 40px), 820px);
  margin-inline: auto;
}

.prose {
  font-size: 17px;
}

.prose h2 {
  margin: 2.8em 0 0.8em;
  color: var(--kyutto-navy);
  font-size: 30px;
}

.prose h3 {
  margin: 2.2em 0 0.7em;
  color: var(--kyutto-navy);
  font-size: 22px;
}

.prose a {
  color: var(--kyutto-orange-dark);
  text-decoration: underline;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.message-panel {
  padding: 54px;
  color: #fff;
  background: var(--kyutto-navy);
  border-radius: var(--kyutto-radius-lg);
}

.message-panel h2 {
  font-size: clamp(28px, 4vw, 42px);
}

.message-panel p {
  color: rgba(255, 255, 255, 0.80);
}

.message-signature {
  margin-top: 30px;
  font-weight: 700;
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.strength-card {
  padding: 30px;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: var(--kyutto-radius);
}

.strength-card__number {
  display: block;
  margin-bottom: 20px;
  color: var(--kyutto-orange);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.strength-card h3 {
  margin-bottom: 12px;
  color: var(--kyutto-navy);
  font-size: 21px;
}

.strength-card p {
  margin-bottom: 0;
  color: var(--kyutto-muted);
  font-size: 15px;
}

.business-groups {
  display: grid;
  gap: 72px;
}

.business-group__title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  color: var(--kyutto-navy);
  font-size: 30px;
}

.business-group__title::before {
  width: 10px;
  height: 10px;
  content: "";
  background: var(--kyutto-orange);
  border-radius: 50%;
}

.business-detail-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 28px;
  padding: 34px;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: var(--kyutto-radius);
}

.business-detail-card + .business-detail-card {
  margin-top: 20px;
}

.business-detail-card__icon {
  display: grid;
  width: 86px;
  height: 86px;
  color: var(--kyutto-navy);
  background: var(--kyutto-soft);
  border-radius: 24px;
  place-items: center;
}

.business-detail-card__icon svg {
  width: 44px;
  height: 44px;
}

.business-detail-card h3 {
  margin-bottom: 10px;
  color: var(--kyutto-navy);
  font-size: 25px;
}

.business-detail-card p:last-child {
  margin-bottom: 0;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--kyutto-line);
}

.company-table th,
.company-table td {
  padding: 22px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--kyutto-line);
}

.company-table th {
  width: 210px;
  color: var(--kyutto-navy);
  font-weight: 800;
}

.company-table td {
  color: #435164;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 50px;
}

.contact-info {
  position: sticky;
  top: 120px;
  padding: 34px;
  color: #fff;
  background: var(--kyutto-navy);
  border-radius: var(--kyutto-radius);
}

.contact-info h2 {
  margin-bottom: 16px;
  font-size: 28px;
}

.contact-info p {
  color: rgba(255, 255, 255, 0.76);
}

.contact-form {
  padding: 38px;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: var(--kyutto-radius);
  box-shadow: 0 14px 38px rgba(11, 43, 69, 0.06);
}

.form-row {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  margin-bottom: 9px;
  color: var(--kyutto-navy);
  font-weight: 800;
}

.required {
  margin-left: 7px;
  color: var(--kyutto-orange-dark);
  font-size: 12px;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 15px;
  color: var(--kyutto-ink);
  background: #fff;
  border: 1px solid #cfd7df;
  border-radius: 10px;
}

.contact-form textarea {
  min-height: 180px;
  resize: vertical;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--kyutto-muted);
  font-size: 14px;
}

.form-check input {
  margin-top: 7px;
}

.form-notice {
  margin-bottom: 26px;
  padding: 15px 18px;
  border-radius: 10px;
  font-weight: 700;
}

.form-notice--success {
  color: #0b5d43;
  background: #e8f6ef;
  border: 1px solid #c2ead8;
}

.form-notice--error {
  color: #8f2d22;
  background: #fff0ee;
  border: 1px solid #f2c7c1;
}

.honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
  white-space: nowrap !important;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.news-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: var(--kyutto-radius);
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--kyutto-muted);
  font-size: 13px;
}

.news-card h2 {
  margin-bottom: 14px;
  color: var(--kyutto-navy);
  font-size: 21px;
}

.news-card p {
  color: var(--kyutto-muted);
  font-size: 14px;
}

.news-card .card__link {
  margin-top: auto;
}

.pagination {
  margin-top: 48px;
  text-align: center;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.page-numbers {
  display: grid;
  width: 42px;
  height: 42px;
  color: var(--kyutto-navy);
  background: #fff;
  border: 1px solid var(--kyutto-line);
  border-radius: 10px;
  place-items: center;
}

.page-numbers.current,
.page-numbers:hover {
  color: #fff;
  background: var(--kyutto-navy);
}

.single-header {
  padding: 86px 0 52px;
  background: var(--kyutto-soft);
}

.single-header__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: var(--kyutto-muted);
  font-size: 14px;
}

.single-header h1 {
  max-width: 900px;
  margin-bottom: 0;
  color: var(--kyutto-navy);
  font-size: clamp(34px, 5vw, 55px);
}

.empty-state {
  padding: 48px;
  color: var(--kyutto-muted);
  background: var(--kyutto-soft);
  border-radius: var(--kyutto-radius);
  text-align: center;
}

.site-footer {
  padding: 72px 0 28px;
  color: rgba(255, 255, 255, 0.72);
  background: #071e31;
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(0, 1.2fr);
  gap: 60px;
  padding-bottom: 50px;
}

.footer-brand-copy {
  max-width: 430px;
  margin: 20px 0 0;
}

.footer-nav {
  display: flex;
  justify-content: flex-end;
}

.footer-nav .menu {
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-nav a:hover {
  color: #fff;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12px;
}

.footer-legal {
  display: flex;
  gap: 18px;
}

.footer-legal a:hover {
  color: #fff;
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .admin-bar .site-header {
    top: 46px;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .site-nav {
    position: fixed;
    top: var(--kyutto-header-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: block;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.98);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: 0.2s ease;
  }

  .admin-bar .site-nav {
    top: calc(var(--kyutto-header-height) + 46px);
  }

  .menu-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav .menu {
    display: grid;
    gap: 4px;
  }

  .site-nav a {
    width: 100%;
    min-height: 54px;
    padding: 0 8px;
    border-bottom: 1px solid var(--kyutto-line);
  }

  .header-contact {
    width: 100%;
    margin-top: 20px;
  }

  .hero__grid,
  .split-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero__grid {
    gap: 30px;
  }

  .hero__visual {
    min-height: 360px;
  }

  .cards,
  .strength-grid,
  .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .principles__grid {
    grid-template-columns: 1fr;
  }

  .principle + .principle::before {
    top: 0;
    right: 12%;
    bottom: auto;
    left: 12%;
    width: auto;
    height: 1px;
  }

  .contact-info {
    position: static;
  }

  .site-footer__top {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    justify-content: flex-start;
  }

  .footer-nav .menu {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  :root {
    --kyutto-header-height: 68px;
  }

  .container,
  .content-narrow {
    width: min(calc(100% - 28px), var(--kyutto-container));
  }

  .section {
    padding: 70px 0;
  }

  .site-header__inner {
    min-height: var(--kyutto-header-height);
  }

  .brand-logo {
    width: 146px;
  }

  .hero__grid {
    padding: 70px 0 58px;
  }

  .hero__title {
    font-size: clamp(36px, 12vw, 52px);
  }

  .hero__actions,
  .hero__actions .button {
    width: 100%;
  }

  .hero__visual {
    min-height: 290px;
  }

  .hero__mark-wrap {
    width: 250px;
    border-radius: 36% 64% 52% 48% / 55% 42% 58% 45%;
  }

  .cards,
  .strength-grid,
  .archive-grid {
    grid-template-columns: 1fr;
  }

  .card__body,
  .contact-form {
    padding: 24px;
  }

  .principle {
    padding: 42px 28px;
  }

  .split-layout {
    gap: 40px;
  }

  .brand-story {
    min-height: 340px;
  }

  .quote-card {
    right: 14px;
    bottom: 14px;
    left: 14px;
    max-width: none;
  }

  .news-item a {
    grid-template-columns: 88px minmax(0, 1fr) 22px;
    gap: 10px;
    padding: 16px 0;
  }

  .news-item__category {
    display: none;
  }

  .contact-cta {
    grid-template-columns: 1fr;
    padding: 38px 28px;
  }

  .contact-cta .button {
    width: 100%;
  }

  .page-hero {
    padding: 72px 0 52px;
  }

  .message-panel {
    padding: 34px 26px;
  }

  .business-detail-card {
    grid-template-columns: 1fr;
    padding: 26px;
  }

  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    padding-bottom: 6px;
    border-bottom: 0;
  }

  .company-table td {
    padding-top: 0;
  }

  .site-footer__bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav .menu {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 22px;
  }
}