/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */
:root {
  --clr-primary:        #fa8400;
  --clr-primary-dark:   #cc5f00;
  --clr-primary-darker: #a34b00;
  --clr-primary-light:  #fdb95e;
  --clr-primary-bg:     #fff3e8;
  --clr-text:           #1a1a18;
  --clr-text-sub:       #666663;
  --clr-text-muted:     #aaaaaa;
  --clr-border:         #e0e0de;
  --clr-bg:             #ffffff;
  --clr-bg-warm:        #f8f8f4;
  --clr-gray-200:       #e0e0de;
  --clr-footer:         #3c1f08;

  /* Gen Interface JP: 400=Regular / 500=Medium / 600=SemiBold / 700=Bold */
  --font: 'Gen Interface JP', 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
  --fw-regular:   400;
  --fw-medium:    500;
  --fw-semibold:  600;
  --fw-bold:      700;

  --header-h:       80px;
  --container-max:  1260px;
  --container-pad:  24px;

  --r-sm:   6px;
  --r-md:   10px;
  --r-lg:   14px;
  --r-xl:   20px;
  --r-full: 9999px;

  --shadow-sm: 0 1px 4px rgba(26,26,24,.06), 0 1px 2px rgba(26,26,24,.04);
  --shadow-md: 0 4px 16px rgba(26,26,24,.08), 0 2px 6px rgba(26,26,24,.04);
  --shadow-lg: 0 8px 40px rgba(26,26,24,.10);

  --ease: .22s ease;
}

/* ==========================================================================
   Skip Link
   ========================================================================== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 8px 16px;
  background: var(--clr-primary);
  color: #fff;
  font-size: 14px;
  font-weight: var(--fw-bold);
  border-radius: var(--r-sm);
  transition: top .15s;
}
.skip-link:focus { top: 16px; }

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

img   { max-width: 100%; height: auto; display: block; }
a     { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
address { font-style: normal; }

/* ==========================================================================
   Layout Utilities
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
@media (min-width: 768px) { .container { padding-inline: 40px; } }

/* ==========================================================================
   Section header grid layout
   h2 → subtitle: row-gap 16px (視覚 ~20px)
   subtitle → lead: row-gap 16px + subtitle margin-bottom 12px = 28px (視覚 ~32px)
   ========================================================================== */
.about__header,
.product__header,
.features__header,
.floor-structure__header,
.accountability__header,
.faq__header,
.company__header,
.contact__header {
  display: grid;
  row-gap: 16px;
}

/* ==========================================================================
   Section Subtitle  bar.svg + Text
   ========================================================================== */
.section-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  line-height: 1;
  font-weight: var(--fw-bold);
  color: var(--clr-primary);
  margin-bottom: 12px;
}
.section-subtitle::before {
  content: '';
  display: block;
  width: 40px;
  height: 10px;
  flex-shrink: 0;
  background: url('../../images/bar.svg') no-repeat left center / contain;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0;
  border-radius: var(--r-full);
  font-size: 15px;
  font-weight: var(--fw-bold);
  border: 2px solid transparent;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
@media (min-width: 1024px) { .btn { min-width: 180px; } }
.btn--primary    { background: var(--clr-primary); color: #fff; }
.btn--primary:hover { background: #bd0000; }
.btn--white      { background: #fff; color: var(--clr-primary); }
.btn--white:hover { background: rgba(255,255,255,.85); color: var(--clr-primary); }
.btn--ghost-white { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn--ghost-white:hover { background: #fff; color: var(--clr-primary); }
.btn--sm { height: 40px; font-size: 13px; }
.btn--lg { height: 40px; font-size: 16px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.site-header.is-scrolled {
  border-bottom-color: var(--clr-border);
  box-shadow: var(--shadow-sm);
}
.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
}
@media (min-width: 768px) { .site-header__inner { padding-inline: 40px; } }

.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.site-header__logo img { height: 28px; width: auto; display: block; }

.site-header__nav { display: none; margin-left: auto; }
.site-header__nav-list { display: flex; gap: 0; }
.site-header__nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: var(--fw-medium);
  color: var(--clr-text-sub);
  border-radius: var(--r-sm);
  transition: color var(--ease), background var(--ease);
}
.site-header__nav-link:hover { color: var(--clr-primary); background: var(--clr-primary-bg); }

.site-header__cta { margin-left: 16px; font-size: 16px; }

.site-header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  margin-left: auto;
}
.site-header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 1px;
  transition: transform .25s ease, opacity .25s;
}
.site-header__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header__hamburger.is-open span:nth-child(2) { opacity: 0; }
.site-header__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 480px) {
  .site-header__cta { display: none; }
  .btn { width: 80%; max-width: 320px; }
  .mobile-menu__link--cta { display: flex; margin: 16px 24px; width: calc(100% - 48px); max-width: 320px; }
}
@media (min-width: 1024px) {
  .site-header__nav { display: block; }
  .site-header__hamburger { display: none; }
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--header-h);
  inset-inline: 0;
  background: #fff;
  z-index: 90;
  border-bottom: 1px solid var(--clr-border);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform .28s ease, opacity .28s ease, visibility .28s;
}
.mobile-menu.is-open { transform: translateY(0); opacity: 1; visibility: visible; }

.mobile-menu__list { padding: 12px 24px 20px; }
.mobile-menu__item { border-bottom: 1px solid #f0f0ee; }
.mobile-menu__item:last-child { border-bottom: none; }
.mobile-menu__link { display: block; padding: 14px 4px; font-size: 15px; color: var(--clr-text-sub); }
.mobile-menu__link--cta { color: #fff; font-weight: var(--fw-bold); }

/* ==========================================================================
   Hero — 左: オレンジグラデーション / 右: フォト
   ========================================================================== */
.hero { margin-top: var(--header-h); overflow: hidden; }

.hero__split {
  display: flex;
  flex-direction: column;
  min-height: calc(100svh - var(--header-h));
  min-height: calc(100vh - var(--header-h));
}
@media (min-width: 1024px) {
  .hero__split {
    flex-direction: row;
    min-height: unset;
    height: 600px;
  }
}

.hero__left {
  background: linear-gradient(to right, #e02424 0%, #fa8400 100%);
  padding: 56px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
@media (min-width: 768px) { .hero__left { padding-inline: 48px; } }
@media (min-width: 1024px) {
  .hero__left { width: 42%; height: 100%; padding: 80px; }
}

.hero__right {
  flex: 1;
  min-height: 300px;
  overflow: hidden;
  background: var(--clr-gray-200);
}
.hero__right img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
@media (min-width: 1024px) { .hero__right { width: 58%; min-height: unset; } }

.hero__label {
  font-size: 20px;
  font-weight: var(--fw-bold);
  color: #fff;
  margin-bottom: 4px;
}
.hero__title {
  font-size: clamp(32px, 5.2vw, 52px);
  font-weight: var(--fw-bold);
  color: #fff;
  line-height: 1.2;
  margin-bottom: 12px;
}
.hero__subtitle {
  font-size: clamp(16px, 1.8vw, 20px);
  color: #fff;
  line-height: 1.8;
  margin-bottom: 40px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
@media (max-width: 480px) {
  .hero__left { padding-block: 40px; }
  .hero__actions { flex-direction: column; align-items: center; }
}

/* ==========================================================================
   About
   ========================================================================== */
.about {
  padding-block: 96px;
  background: #fff;
}
.about__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 1024px) { .about__layout { grid-template-columns: 1fr 1fr; gap: 72px; } }

.about__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--clr-gray-200);
}
.about__image img { width: 100%; height: 100%; object-fit: cover; }

.about__heading {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: var(--fw-bold);
  line-height: 1.3;
}
section p { text-align: justify; }
[class*="__lead"] { text-align: center; word-break: auto-phrase; }

.about__body {
  font-size: 15px;
  color: var(--clr-text-sub);
  line-height: 1.8;
}
@media (min-width: 1024px) { .about__body { max-width: 520px; } }
.about__areas-title { font-size: 13px; font-weight: var(--fw-semibold); margin-top: 24px; margin-bottom: 0; }
.about__areas-text  { font-size: 15px; color: var(--clr-text-sub); }

/* ==========================================================================
   Product
   ========================================================================== */
.product {
  padding-block: 96px;
  background: var(--clr-bg-warm);
}
.product__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 64px;
}
.product__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; }
.product__lead { font-size: 20px; color: var(--clr-text-sub); line-height: 1.4; margin-top: 0; }

.product__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}
@media (min-width: 1024px) { .product__layout { grid-template-columns: 1fr 1fr; gap: 72px; } }

.product__detail-category { font-size: 20px; color: var(--clr-text-sub); margin-bottom: 4px; }
.product__detail-name {
  font-size: clamp(32px, 4vw, 46px);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  margin-bottom: 20px;
}
.product__detail-body {
  font-size: 15px;
  color: var(--clr-text-sub);
  line-height: 1.8;
  margin-bottom: 32px;
}

.product__stats { list-style: none; padding: 0; margin: 0 0 16px; display: flex; gap: 24px; flex-wrap: wrap; }
.product__stat  { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.product__stat-label { font-size: 14px; color: var(--clr-text-sub); }
.product__stat-badge {
  width: 120px; height: 120px;
  border-radius: 50%;
  background: #9c1700;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px;
}
.product__stat-number { font-size: 36px; font-weight: var(--fw-bold); color: #fff; line-height: 1; }
.product__stat-unit   { font-size: 16px; font-weight: var(--fw-medium); color: rgba(255,255,255,.9); }
.product__patent-note { font-size: 12px; color: var(--clr-text-sub); margin-top: 12px; }

.product__image-wrap {}
.product__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--clr-gray-200);
}
.product__image img { width: 100%; height: 100%; object-fit: cover; }
.product__image-caption { font-size: 12px; color: var(--clr-text-sub); text-align: center; margin-top: 12px; }

/* ==========================================================================
   Features
   ========================================================================== */
.features {
  padding-block: 96px;
  background: #fff;
}
.features__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 64px;
}
.features__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; }
.features__lead { font-size: 20px; color: var(--clr-text-sub); line-height: 1.4; margin-top: 0; }

/* 製品紹介以降：section-subtitleをセンター揃え */
.product__header .section-subtitle,
.features__header .section-subtitle,
.floor-structure__header .section-subtitle,
.accountability__header .section-subtitle,
.faq__header .section-subtitle,
.company__header .section-subtitle,
.contact__header .section-subtitle {
  display: flex;
  justify-content: center;
  align-items: center;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 768px)  { .features__grid { grid-template-columns: repeat(2,1fr); gap: 40px 32px; } }
@media (min-width: 1024px) { .features__grid { grid-template-columns: repeat(3,1fr); } }

/* ボーダーなし・影なしカード */
.feature-card {}
.feature-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--clr-gray-200);
  margin-bottom: 20px;
}
.feature-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.feature-card__title {
  font-size: 20px;
  font-weight: var(--fw-semibold);
  line-height: 1.4;
  margin-bottom: 8px;
  text-align: center;
}
/* 縦ストライプ装飾 stripe.svg センター */
.feature-card__bar {
  width: 32px;
  height: 15px;
  margin: 0 auto 10px;
  background: url('../../images/stripe.svg') no-repeat center center / contain;
}
.feature-card__text {
  font-size: 15px;
  color: var(--clr-text-sub);
  line-height: 1.8;
}

/* ==========================================================================
   Floor Structure (床構造・対応床材)
   ========================================================================== */
.floor-structure {
  padding-block: 96px;
  background: var(--clr-bg-warm);
}
.floor-structure__header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 64px;
}
.floor-structure__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; }
.floor-structure__lead { font-size: 20px; color: var(--clr-text-sub); line-height: 1.4; margin-top: 0; }

.floor-structure__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}
@media (min-width: 1024px) { .floor-structure__layout { grid-template-columns: 1fr 1fr; gap: 72px; } }

.floor-structure__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--clr-gray-200);
}
.floor-structure__image img { width: 100%; height: 100%; object-fit: cover; }

.floor-structure__content-title {
  font-size: 18px;
  font-weight: var(--fw-semibold);
  line-height: 1.55;
  margin-bottom: 16px;
}
.floor-structure__content-body {
  font-size: 15px;
  color: var(--clr-text-sub);
  line-height: 1.8;
  margin-bottom: 28px;
}

/* 対応床材ラベル (同じ2本バーパターン) */
.materials-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: var(--fw-semibold);
  color: var(--clr-primary);
  margin-bottom: 14px;
}
.materials-label::before {
  content: '';
  display: block;
  width: 40px;
  height: 10px;
  flex-shrink: 0;
  background: url('../../images/bar.svg') no-repeat left center / contain;
}

.materials-list {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 8px 16px;
  margin-bottom: 16px;
}
.materials-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
}
.materials-item::before { content: '✓'; color: var(--clr-primary); font-weight: var(--fw-bold); flex-shrink: 0; }

.floor-structure__note { font-size: 12px; color: var(--clr-text-muted); }

/* ==========================================================================
   Accountability (トラブル回避の検査体制と責任施行)
   ========================================================================== */
.accountability {
  padding-block: 96px;
  background: #fff;
}
.accountability__header {
  text-align: center;
  max-width: 740px;
  margin-inline: auto;
  margin-bottom: 64px;
}
.accountability__heading {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: var(--fw-bold);
  line-height: 1.3;
}
.accountability__lead { font-size: 20px; color: var(--clr-text-sub); line-height: 1.4; margin-top: 0; }

.accountability__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 768px) { .accountability__grid { grid-template-columns: repeat(2,1fr); gap: 40px; } }

.accountability__item-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--clr-gray-200);
  margin-bottom: 20px;
}
.accountability__item-image img { width: 100%; height: 100%; object-fit: cover; }
.accountability__item-title { font-size: 18px; font-weight: var(--fw-semibold); line-height: 1.5; margin-bottom: 12px; }
.accountability__item-text  { font-size: 15px; color: var(--clr-text-sub); line-height: 1.8; }

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq {
  padding-block: 96px;
  background: var(--clr-bg-warm);
}
.faq__inner { max-width: 880px; }
.faq__header { text-align: center; margin-bottom: 48px; }
.faq__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; }
.faq__lead { font-size: 20px; color: var(--clr-text-sub); line-height: 1.4; margin-top: 0; }
.faq__lead a { color: var(--clr-primary); }

.faq__list {
  display: grid;
  gap: 2px;
  background: transparent;
  overflow: hidden;
  max-width: 800px;
  margin-inline: auto;
}

/* Accordion */
.accordion-item { background: var(--clr-bg); }

.accordion-btn {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 16px;
  padding: 20px 24px 20px 0;
  background: none;
  border: none;
  text-align: left;
  transition: background var(--ease);
}
.accordion-btn:hover { background: #fff9f4; }
@media (min-width: 1024px) { .accordion-btn { min-height: 80px; } }

.accordion-q {
  flex-shrink: 0;
  width: 60px;
  padding-left: 20px;
  font-size: 40px;
  font-weight: var(--fw-bold);
  color: var(--clr-primary);
  line-height: 1;
}
.accordion-question {
  flex: 1;
  font-size: 18px; font-weight: 400;
  color: var(--clr-text);
  line-height: 1.4;
}
.accordion-chevron {
  flex-shrink: 0;
  width: 20px; height: 20px;
  color: var(--clr-text-muted);
  transition: transform .22s ease;
}
.accordion-item.is-open .accordion-chevron { transform: rotate(180deg); }

.accordion-body {
  display: none;
  padding: 0 24px 20px;
  padding-left: calc(60px + 16px);
}
.accordion-item.is-open .accordion-body { display: block; }
.accordion-body p { font-size: 14px; color: var(--clr-text-sub); line-height: 1.8; }

/* ==========================================================================
   Company
   ========================================================================== */
.company {
  padding-block: 96px;
  background: #fff;
}
.company__header { text-align: center; margin-bottom: 0; }
.company__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; }
.company__tagline {
  font-size: 20px;
  color: var(--clr-text-sub);
  line-height: 1.4;
  text-align: center;
  margin-top: 40px;
  margin-bottom: 20px;
  margin-inline: auto;
  max-width: 800px;
  width: 100%;
}
.company__desc {
  font-size: 15px;
  color: var(--clr-text-sub);
  line-height: 1.8;
  text-align: left;
  margin-bottom: 48px;
  margin-inline: auto;
  max-width: 800px;
  width: 100%;
}
.company__table { width: 100%; max-width: 800px; margin-inline: auto; border-collapse: collapse; }
.company__table tr { border-top: 1px solid var(--clr-border); }
.company__table tr:last-child { border-bottom: 1px solid var(--clr-border); }
.company__table th,
.company__table td { padding: 24px 16px; font-size: 15px; text-align: left; vertical-align: top; }
.company__table th { width: 180px; color: var(--clr-text-sub); font-weight: 400; }
@media (min-width: 768px) { .company__table th { width: 220px; } }

/* ==========================================================================
   Contact — 赤→オレンジ 横グラデーション
   ========================================================================== */
.contact {
  padding-block: 96px;
  background: linear-gradient(to right, #e02424 0%, #fa8400 100%);
}
.contact__header { text-align: center; margin-bottom: 48px; }

.contact__heading { font-size: clamp(24px, 2.6vw, 30px); font-weight: var(--fw-bold); line-height: 1.3; color: #fff; }

.contact .section-subtitle { color: rgba(255,255,255,.9); }
.contact .section-subtitle::before { background-image: url('../../images/bar_white.svg'); }

.contact__lead { font-size: 20px; color: rgba(255,255,255,.88); line-height: 1.4; margin-top: 0; }

/* フォームカード */
.contact__card {
  background: #fff;
  border-radius: var(--r-xl);
  padding: 48px 40px;
  max-width: 800px;
  margin-inline: auto;
  box-shadow: 0 8px 48px rgba(0,0,0,.15);
}
@media (max-width: 600px) { .contact__card { padding: 32px 24px; } }

.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: var(--fw-medium);
  margin-bottom: 8px;
}
.form-label--required {
  font-size: 11px;
  color: var(--clr-primary);
  font-weight: 400;
  margin-left: 4px;
}
.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-md);
  font-size: 15px;
  font-family: var(--font);
  background: #fff;
  color: var(--clr-text);
  transition: border-color var(--ease);
  appearance: none;
}
.form-input:focus,
.form-textarea:focus { outline: none; border-color: var(--clr-primary); }
.form-textarea { resize: vertical; min-height: 160px; }

/* ファイル入力 */
.wpcf7-file,
input[type="file"] {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-md);
  font-size: 14px;
  font-family: var(--font);
  color: var(--clr-text);
  background: #fff;
  cursor: pointer;
}
.wpcf7-file:focus,
input[type="file"]:focus {
  outline: none;
  border-color: var(--clr-primary);
}
.wpcf7-file::file-selector-button,
input[type="file"]::file-selector-button {
  padding: 6px 14px;
  margin-right: 12px;
  border: none;
  border-radius: var(--r-sm);
  background: rgba(26, 26, 24, 0.65);
  color: #fff;
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: background var(--ease);
}
.wpcf7-file::file-selector-button:hover,
input[type="file"]::file-selector-button:hover {
  background: rgba(26, 26, 24, 0.8);
}

.form-submit {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 32px;
}
.form-submit .btn,
.form-submit .wpcf7-submit { width: 100%; max-width: 240px; height: 60px; }

/* CF7 スピナー */
.wpcf7-spinner { display: block; margin-top: 40px; }

/* CF7 レスポンスメッセージ */
.wpcf7-response-output {
  border: none !important;
  padding: 2em !important;
  border-radius: var(--r-md);
  text-align: center;
  color: #fff;
  margin: 0;
}
.wpcf7-form.valid   .wpcf7-response-output { background: #64A33D; }
.wpcf7-form.sent    .wpcf7-response-output { background: #64A33D; margin-top: 0; }
.wpcf7-form.invalid .wpcf7-response-output { background: #BF0811; }

/* ==========================================================================
   Footer — ダークウォームブラウン
   ========================================================================== */
.site-footer {
  background: var(--clr-footer);
  padding-block: 64px 32px;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  margin-bottom: 24px;
}
@media (min-width: 768px)  { .site-footer__grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .site-footer__grid { grid-template-columns: 260px repeat(3,1fr); gap: 32px; } }

/* ブランドカラム */
.footer-brand-name {
  font-size: 19px; font-weight: var(--fw-bold);
  color: #fff;
  margin-bottom: 4px;
}
.footer-brand-en {
  font-size: 11px;
  color: var(--clr-primary);
  margin-bottom: 8px;
}
.footer-brand-tagline {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
}

/* オフィスカラム */
.footer-office-name {
  font-size: 13px; font-weight: var(--fw-semibold);
  color: var(--clr-primary-light);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(253,185,94,.25);
  margin-bottom: 14px;
}
.footer-office address {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  line-height: 1.4;
}
.footer-office-tel {
  display: block;
  font-size: 15px; font-weight: var(--fw-bold);
  color: #fff;
  margin-top: 4px;
  transition: color var(--ease);
}
.footer-office-tel:hover { color: var(--clr-primary-light); }
@media (min-width: 1024px) {
  .footer-office-tel { pointer-events: none; cursor: default; }
}
.footer-office-fax { font-size: 12px; color: rgba(255,255,255,.4); margin-top: 0; line-height: 1.4; }

.site-footer__copyright {
  text-align: center;
  font-size: 11px;
  color: rgba(255,255,255,.3);
}

/* ==========================================================================
   body.menu-open → scroll lock
   ========================================================================== */
body.menu-open { overflow: hidden; }

/* ==========================================================================
   Mobile overrides (max-width: 480px)
   ========================================================================== */
@media (max-width: 480px) {
  .about__heading { text-align: center; }
  .about__header .section-subtitle { display: flex; justify-content: center; align-items: center; }
  .company__table th,
  .company__table td { display: block; width: 100%; }
  .company__table th { padding-bottom: 4px; }
  .company__table td { padding-top: 0; }
  .about,
  .product,
  .features,
  .floor-structure,
  .accountability,
  .faq,
  .company,
  .contact { padding-block: 40px; }
  .product__stats { gap: 12px; flex-wrap: nowrap; }
  .product__stats li { flex: 1; min-width: 0; }
  .product__stats li img { width: 100%; height: auto; }
}