/* =============================
   CSS Variables
============================= */
:root {
  --color-green: #37B34A;
  --color-green-dark: #1e8a30;
  --color-yellow: #FFE566;
  --color-yellow-dark: #f5d200;
  --color-black: #111111;
  --color-white: #ffffff;
  --color-gray-50: #fafafa;
  --color-gray-100: #f4f4f4;
  --color-gray-200: #e5e5e5;
  --color-gray-400: #999999;
  --color-gray-600: #555555;
  --color-gray-800: #222222;

  --font-en: 'Montserrat', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;

  --container-max: 1200px;
  --container-pad: clamp(1.5rem, 5vw, 4rem);
  --section-pad: clamp(5rem, 10vw, 9rem);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.14);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-ja);
  font-weight: 400;
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }

/* =============================
   Utility
============================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section { padding: var(--section-pad) 0; background: var(--color-white); scroll-margin-top: 80px; }
.section--light { background: var(--color-gray-100); }
.section--accent { background: var(--color-yellow); }

.section-label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--color-green);
  margin-bottom: 0.75rem;
}
.section-label--dark { color: var(--color-black); }

.section-title {
  font-family: var(--font-ja);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-black);
  line-height: 1.3;
  margin-bottom: 1.25rem;
}
.section-title--dark { color: var(--color-black); }

.section-header {
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-subtitle { font-size: 0.975rem; color: var(--color-gray-600); max-width: 540px; margin: 0 auto; }
.section-subtitle--dark { color: var(--color-gray-800); }

/* =============================
   Buttons
============================= */
.btn {
  display: inline-flex;
  align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-ja);
  font-size: 0.95rem; font-weight: 700;
  letter-spacing: 0.06em;
  padding: 1rem 2.5rem;
  border: 2px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.btn--accent {
  background: var(--color-yellow);
  color: var(--color-black);
  border-color: var(--color-yellow);
}
.btn--accent:hover {
  background: var(--color-yellow-dark);
  border-color: var(--color-yellow-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-black);
  border-color: var(--color-gray-400);
}
.btn--outline-white:hover {
  border-color: var(--color-black);
  transform: translateY(-2px);
}

.btn--dark {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}
.btn--dark:hover {
  background: var(--color-gray-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--large { padding: 1.125rem 3rem; font-size: 1rem; }

/* =============================
   Scroll Animations
============================= */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.fade-up.in-view { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.4s; }

/* =============================
   Navigation
============================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center; justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.nav__logo {
  display: flex; align-items: center;
}
.nav__logo-img {
  height: 66px;
  width: auto;
  display: block;
  object-fit: contain;
  transition: opacity var(--transition);
}
.nav__logo:hover .nav__logo-img { opacity: 0.8; }

.nav__menu { display: flex; align-items: center; gap: clamp(0.75rem, 1.5vw, 1.5rem); }

.nav__link {
  font-family: var(--font-ja);
  font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-gray-600);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--color-yellow);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav__link:hover { color: var(--color-black); }
.nav__link:hover::after, .nav__link.active::after { transform: scaleX(1); }

.nav__link--cta {
  padding: 0.45rem 1rem;
  background: var(--color-yellow);
  color: var(--color-black) !important;
  font-weight: 700;
  border: 2px solid var(--color-yellow);
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover { background: var(--color-yellow-dark); border-color: var(--color-yellow-dark); transform: translateY(-1px); }

/* Hamburger – hidden on desktop, shown via media query */
.nav__hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; z-index: 1100; }

/* PC: メニューを表示 */
@media (min-width: 1101px) {
  .nav__menu { display: flex; }
  .nav__hamburger { display: none !important; }
}
.nav__hamburger span {
  display: block; width: 26px; height: 2px;
  background: var(--color-black);
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================
   Hero Section
============================= */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  border-bottom: 3px solid var(--color-yellow);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('../images/hero-bg.jpg') center 50% / cover no-repeat;
  filter: saturate(0.85);
  z-index: 0;
}

.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255,255,255,0.92) 0%,
    rgba(255,255,255,0.70) 35%,
    rgba(255,255,255,0.15) 70%,
    rgba(255,255,255,0)    100%
  );
  z-index: 1;
}

.hero__content {
  position: absolute; inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  padding: 0 clamp(2rem, 8vw, 8rem);
  padding-top: 72px;
}

.hero__left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2rem;
  max-width: 520px;
}

.hero__logo-block { display: block; }
.hero__logo-img {
  width: 360px;
  height: auto;
  display: block;
  margin-left: -1cm;
}

.hero__catch {
  font-family: var(--font-ja);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.5;
  color: #1d1d1d;
  letter-spacing: 0.05em;
}

.hero__desc {
  font-family: var(--font-ja);
  font-size: clamp(0.88rem, 1.2vw, 1rem);
  color: #444;
  line-height: 2;
  letter-spacing: 0.03em;
}

.hero__cta {
  display: inline-block;
  background: #2f6b3a;
  color: #fff;
  font-family: var(--font-ja);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.9rem 2.5rem;
  border-radius: 2px;
  transition: background var(--transition), transform var(--transition);
  text-decoration: none;
}
.hero__cta:hover {
  background: #24532d;
  transform: translateY(-2px);
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  z-index: 3;
}
.hero__scroll span {
  font-family: var(--font-en);
  font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--color-gray-600);
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--color-gray-600), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

/* スマホ対応 */
@media (max-width: 640px) {
  .hero__overlay {
    background: rgba(255,255,255,0.75);
  }
  .hero__content {
    align-items: flex-start;
    justify-content: center;
    padding: 100px 1.5rem 5rem;
  }
  .hero__left {
    align-items: center;
    text-align: center;
    max-width: 100%;
  }
  .hero__logo-img { width: 140px; }
  .hero__catch { font-size: clamp(1.6rem, 7vw, 2.2rem); }
}

/* =============================
   About Section
============================= */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 7rem);
  align-items: center;
}

.about__lead {
  font-size: 1.1rem; font-weight: 700;
  color: var(--color-black);
  line-height: 1.85; margin-bottom: 1.25rem;
}
.about__body { font-size: 0.975rem; color: var(--color-gray-600); line-height: 2; }

.about__stats {
  display: flex; flex-direction: column; gap: 2.5rem;
  padding-left: clamp(1.5rem, 5vw, 4rem);
  border-left: 3px solid var(--color-yellow);
}

.stat__number {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  color: var(--color-black);
  line-height: 1; margin-bottom: 0.4rem;
  display: flex; align-items: baseline; gap: 0.15em;
}
.stat__unit { font-family: var(--font-ja); font-size: 1.1rem; font-weight: 400; color: var(--color-gray-600); }
.stat__label { font-size: 0.8rem; letter-spacing: 0.12em; color: var(--color-gray-400); }

/* =============================
   Service Section
============================= */
.service.section {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f5f8f5 100%);
  overflow: hidden;
}
/* 徳島県シルエット透かし */
.service.section::before {
  content: '';
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  width: 480px;
  height: 520px;
  background: url('../images/tokushima-silhouette.svg') center / contain no-repeat;
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
}
.service.section .container { position: relative; z-index: 1; }
.service__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-gray-200);
  border: 1px solid var(--color-gray-200);
}

.service-card {
  padding: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.5rem);
  background: var(--color-white);
  position: relative; overflow: hidden;
  transition: background var(--transition), box-shadow var(--transition);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 3px;
  background: var(--color-yellow);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition-slow);
}
.service-card:hover { background: var(--color-gray-50); }
.service-card:hover::after { transform: scaleX(1); }

.service-card__icon {
  width: 56px; height: 56px;
  color: var(--color-green);
  margin-bottom: 1.5rem;
}
.service-card__title {
  font-size: 1.05rem; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.75rem;
}
.service-card__text { font-size: 0.875rem; color: var(--color-gray-600); line-height: 1.9; }

.service-card--has-photo { padding: 0; overflow: hidden; }
.service-card__photo { aspect-ratio: 16/9; overflow: hidden; }
.service-card__img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.service-card--has-photo:hover .service-card__img { transform: scale(1.04); }
.service-card__body { padding: 1.5rem; }

/* =============================
   Works Section
============================= */
.works__numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-yellow);
  border: 1px solid var(--color-yellow);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.works-stat {
  background: var(--color-white);
  padding: 2.5rem 1.5rem;
  text-align: center;
}
.works-stat__num {
  font-family: var(--font-en);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-black);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.works-stat__label {
  font-size: 0.8rem; font-weight: 500;
  color: var(--color-gray-600);
  letter-spacing: 0.08em;
}

.works__cases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.work-case {
  display: flex; gap: 1.5rem;
  padding: 2rem;
  border: 1px solid var(--color-gray-200);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.work-case:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-sm);
}

.work-case__num {
  font-family: var(--font-en);
  font-size: 2rem; font-weight: 800;
  color: var(--color-gray-200);
  line-height: 1;
  flex-shrink: 0;
  padding-top: 0.2rem;
}

.work-case__tag {
  display: inline-block;
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-white);
  background: var(--color-green);
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.5rem;
}
.work-case__title {
  font-size: 1rem; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.3rem; line-height: 1.5;
}
.work-case__detail {
  font-size: 0.8rem; color: var(--color-gray-400);
  margin-bottom: 0.75rem;
}
.work-case__list { display: flex; flex-direction: column; gap: 0.2rem; }
.work-case__list li {
  font-size: 0.82rem; color: var(--color-gray-600);
  padding-left: 0.9rem; position: relative;
}
.work-case__list li::before {
  content: '−';
  position: absolute; left: 0;
  color: var(--color-green);
  font-weight: 700;
}

/* =============================
   Officers Section
============================= */
.officers.section {
  position: relative;
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
  overflow: hidden;
}
.officers.section::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 126%;
  height: 144%;
  background: url('../images/west-logo.png') center / contain no-repeat;
  opacity: 0.05;
  pointer-events: none;
  z-index: 0;
}
.officers.section .container { position: relative; z-index: 1; }

.officers__list {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.officer-item {
  display: flex;
  align-items: baseline;
  gap: 3rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--color-gray-200);
}
.officer-item:first-child { border-top: 1px solid var(--color-gray-200); }

.officer-item__role {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-gray-400);
  letter-spacing: 0.1em;
  white-space: nowrap;
  min-width: 9em;
}

.officer-item__name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: 0.08em;
}

/* =============================
   Greeting Section
============================= */
.greeting.section,
.greeting.section .section-label,
.greeting.section .section-title,
.greeting.section .section-subtitle {
  font-family: 'Yuji Syuku', serif;
}
.greeting.section {
  background-image:
    linear-gradient(rgba(255,255,255,0.45), rgba(255,255,255,0.45)),
    url('../images/bizan-greeting-bg.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.greeting__card {
  background: rgba(255,255,255,0.90);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.08);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: clamp(2rem, 5vw, 4rem);
  max-width: 960px;
  margin: 0 auto;
}

.greeting__text { max-width: 720px; font-family: 'Yuji Syuku', serif; }
.greeting__card .section-label,
.greeting__card .section-title { font-family: 'Yuji Syuku', serif; }

.greeting__photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--color-gray-100);
  border: 2px dashed var(--color-gray-200);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1rem;
  position: relative;
  overflow: hidden;
}
.greeting__photo-placeholder svg {
  width: 100%; height: 100%;
  position: absolute; inset: 0;
}
.greeting__photo-placeholder.no-photo + .greeting__photo-placeholder { display: flex; }

/* 写真が読み込まれた場合 */
.greeting__photo-placeholder:not(.no-photo) .equipment-card__photo-placeholder { display: none; }

.greeting__photo-placeholder p.greeting__photo-note {
  position: relative; z-index: 1;
  font-size: 0.78rem; color: var(--color-gray-400);
  letter-spacing: 0.08em;
}

.greeting__name-block {
  text-align: center;
  padding: 1.25rem 0 0;
}
.greeting__position {
  font-size: 0.78rem; color: var(--color-gray-400);
  letter-spacing: 0.12em; margin-bottom: 0.3rem;
}
.greeting__name {
  font-size: 1.2rem; font-weight: 700;
  color: var(--color-black);
  letter-spacing: 0.08em;
}

.greeting__body {
  font-size: 1.3rem;
  color: var(--color-gray-600);
  line-height: 2.1;
  margin-bottom: 1.25rem;
}
.greeting__body:last-of-type { margin-bottom: 2rem; }

.greeting__sign {
  padding-top: 1.75rem;
  border-top: 1px solid rgba(0,0,0,0.12);
  line-height: 1.8;
}
.greeting__sign-company {
  font-size: 0.82rem;
  color: var(--color-gray-600);
  letter-spacing: 0.1em;
}
.greeting__sign-title {
  font-size: 0.82rem;
  color: var(--color-gray-600);
  letter-spacing: 0.1em;
}
.greeting__sign-name {
  display: block;
  font-family: 'Yuji Syuku', serif;
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-black);
  letter-spacing: 0.15em;
  margin-top: 0.5rem;
}

/* =============================
   Flow Section
============================= */
.flow.section {
  background:
    repeating-linear-gradient(
      -45deg,
      #ffffff,
      #ffffff 12px,
      #f7f8f7 12px,
      #f7f8f7 24px
    );
}
.flow__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.flow-step {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
}
.flow-step:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.flow-step::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-yellow);
  z-index: 1;
}

.flow-step__photo {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-gray-100);
}
.flow-step__img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.flow-step:hover .flow-step__img { transform: scale(1.04); }

.flow-step__body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.flow-step__num {
  font-family: var(--font-en);
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-gray-400);
  margin-bottom: 0.35rem;
}
.flow-step__num span {
  font-size: 1.4rem; font-weight: 800;
  color: var(--color-green);
  display: block; line-height: 1; margin-top: 0.1rem;
}

.flow-step__title {
  font-size: 0.95rem; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.flow-step__text {
  font-size: 0.8rem;
  color: var(--color-gray-600);
  line-height: 1.75;
}

.flow-step__arrow { display: none; }

/* =============================
   Works Section
============================= */
.works.section {
  position: relative;
  background-image:
    linear-gradient(rgba(255,255,255,0.82), rgba(255,255,255,0.82)),
    url('../images/works-bg.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.works.section .container { position: relative; z-index: 1; }

/* タイムライン */
.works__timeline {
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--color-yellow);
  margin-left: 2rem;
}

.works-year {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0 2rem;
  padding: 1.5rem 0 1.5rem 2rem;
  border-bottom: 1px solid var(--color-gray-200);
  position: relative;
}
.works-year:last-child { border-bottom: none; }
.works-year::before {
  content: '';
  position: absolute;
  left: -8px; top: 1.85rem;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--color-yellow);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-yellow);
}

.works-year__label {
  font-family: var(--font-en);
  font-size: 1.3rem; font-weight: 800;
  color: var(--color-black);
  line-height: 1;
  padding-top: 0.15rem;
}

.works-year__items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.works-year__item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.works-card__tag {
  font-size: 0.68rem; font-weight: 700;
  background: var(--color-yellow);
  color: var(--color-black);
  padding: 0.18rem 0.6rem;
  border-radius: 2px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}

.works-year__title {
  font-size: 0.92rem; font-weight: 600;
  color: var(--color-black);
  line-height: 1.6;
}

.works-year__location {
  font-size: 0.78rem;
  color: var(--color-gray-400);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .works__timeline { margin-left: 1rem; }
  .works-year { grid-template-columns: 3.5rem 1fr; gap: 0 1rem; padding-left: 1.5rem; }
  .works-year__label { font-size: 1rem; }
}

/* =============================
   Equipment Section
============================= */
.equipment.section {
  position: relative;
  background-image:
    linear-gradient(rgba(255,255,255,0.88), rgba(255,255,255,0.88)),
    url('../images/cat-bg.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.equipment.section .container { position: relative; z-index: 1; }

.equipment__list {
  list-style: none;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.equipment__list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.95rem;
  color: var(--color-black);
  line-height: 1.8;
}
.equipment__list li:last-child { border-bottom: none; }
.equipment__list strong {
  font-weight: 700;
  margin-right: 0.25rem;
}

.equipment__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.equipment-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.equipment-card:hover {
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

/* 写真エリア */
.equipment-card__photo {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-gray-100);
}
.equipment-card__img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}
.equipment-card:hover .equipment-card__img { transform: scale(1.03); }

/* 写真未設定時のプレースホルダー */
.equipment-card__photo-placeholder {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center; justify-content: center;
  background: var(--color-gray-100);
  border-bottom: 1px dashed var(--color-gray-200);
}
.equipment-card__photo.no-photo .equipment-card__img { display: none; }
.equipment-card__photo.no-photo .equipment-card__photo-placeholder { display: flex; }
.equipment-card__photo-placeholder span {
  font-size: 0.78rem; color: var(--color-gray-400);
  letter-spacing: 0.1em;
}

.equipment-card__body { padding: 1.25rem 1.5rem 1.5rem; }

.equipment-card__title {
  font-size: 0.975rem; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.4rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-yellow);
  display: inline-block;
}
.equipment-card__text { font-size: 0.85rem; color: var(--color-gray-600); line-height: 1.8; margin-top: 0.6rem; }

/* =============================
   Company Section
============================= */
.company.section {
  position: relative;
  background: var(--color-white);
  overflow: visible;
}
.company.section::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 126%;
  height: 144%;
  background: url('../images/west-logo.png') center / contain no-repeat;
  opacity: 0.05;
  pointer-events: none;
  z-index: 0;
}
.company.section .container { position: relative; z-index: 1; }

.company__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

/* グループ企業を独立セクションに移したので、会社概要は単カラム */
.company__info { max-width: 760px; margin: 0 auto; }

.company-table { width: 100%; border-collapse: collapse; }
.company-table th,
.company-table td {
  padding: 1rem 1.25rem;
  font-size: 0.9rem; line-height: 1.7;
  border-bottom: 1px solid var(--color-gray-200);
  text-align: left; vertical-align: top;
}
.company-table tr:first-child th,
.company-table tr:first-child td { border-top: 1px solid var(--color-gray-200); }
.company-table th { width: 38%; font-weight: 700; color: var(--color-black); white-space: nowrap; }
.company-table td { color: var(--color-gray-600); }

.company-table__tel {
  font-weight: 700; color: var(--color-green);
  transition: color var(--transition);
}
.company-table__tel:hover { color: var(--color-green-dark); }
.company-table__mail { color: var(--color-gray-600); transition: color var(--transition); }
.company-table__mail:hover { color: var(--color-black); }

.company__group { }
.company__group-title {
  font-size: 1rem; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-yellow);
}

.group-list { display: flex; flex-direction: column; }

/* グループ企業 独立セクション用グリッド */
.group-list--wide {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 800px;
  margin: 0 auto;
}
@media (max-width: 900px) { .group-list--wide { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .group-list--wide { grid-template-columns: 1fr; } }
.group-list__item {
  padding: 0.9rem 1rem;
  font-size: 0.9rem; font-weight: 500;
  color: var(--color-gray-800);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex; align-items: center; gap: 0.75rem;
  transition: background var(--transition), color var(--transition);
}
.group-list__item:first-child { border-top: 1px solid var(--color-gray-200); }
.group-list__item::before {
  content: '';
  display: block; width: 6px; height: 6px;
  background: var(--color-green);
  border-radius: 50%;
  flex-shrink: 0;
}
.group-list__item:hover { background: var(--color-gray-50); color: var(--color-black); }

/* グループ企業セクション 濃いグリーン背景 */
.group-section.section {
  background: linear-gradient(135deg, #24532d 0%, #2f6b3a 55%, #3f814d 100%);
}
.group-section .section-label { color: rgba(255,255,255,0.55); }
.group-section .section-title { color: #ffffff; }
.group-section .section-title::after { background: var(--color-yellow); }

.group-section .group-list--wide {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 840px;
  margin: 0 auto;
}
.group-section .group-list__item {
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.18);
  border-bottom: none;
  padding: 1.25rem 1.5rem;
  color: var(--color-gray-800);
  font-size: 1.08rem;
}
.group-section .group-list__item:first-child { border-top: none; }
.group-section .group-list__item:hover { background: #f9f9f9; color: var(--color-black); }

/* =============================
   Contact Section
============================= */
.contact.section {
  background: linear-gradient(180deg, #f7f8f7 0%, #ffffff 100%);
}
.contact-phone {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2.5rem;
  background: var(--color-white);
  border: 2px solid var(--color-black);
}
.contact-phone__label {
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-gray-600);
  margin-bottom: 0.75rem;
}
.contact-phone__number {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: 0.05em;
  line-height: 1.1; margin-bottom: 0.5rem;
  transition: color var(--transition);
}
.contact-phone__number:hover { color: var(--color-green); }
.contact-phone__hours {
  font-size: 0.82rem; color: var(--color-gray-600);
  margin-bottom: 1rem;
}
.contact-phone__mail {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.9rem; color: var(--color-gray-600);
  transition: color var(--transition);
}
.contact-phone__mail:hover { color: var(--color-black); }

.contact-divider {
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
}
.contact-divider::before {
  content: '';
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 1px;
  background: rgba(0,0,0,0.15);
}
.contact-divider span {
  position: relative;
  background: var(--color-yellow);
  padding: 0.3rem 1.5rem;
  font-size: 0.82rem;
  color: var(--color-black);
  font-weight: 600;
  letter-spacing: 0.1em;
}

.contact-form { max-width: 680px; margin: 0 auto; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.form-group { margin-bottom: 1.5rem; }

.form-label {
  display: block;
  font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}
.required { color: var(--color-green); margin-left: 0.2em; }

.form-input, .form-textarea {
  width: 100%;
  background: var(--color-white);
  border: 1px solid rgba(0,0,0,0.2);
  color: var(--color-black);
  font-family: var(--font-ja);
  font-size: 0.95rem;
  padding: 0.85rem 1.1rem;
  transition: border-color var(--transition);
  outline: none; border-radius: 0; appearance: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--color-gray-400); }
.form-input:focus, .form-textarea:focus { border-color: var(--color-black); }
.form-textarea { resize: vertical; min-height: 140px; }
.form-submit { text-align: center; margin-top: 1rem; }

/* =============================
   Footer
============================= */
.footer {
  background: var(--color-black);
  color: rgba(255, 255, 255, 0.6);
  padding: 3.5rem 0 2rem;
}

.footer__inner {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 2rem;
}

.footer__logo {
  display: block;
  margin-bottom: 1rem;
}
.footer__logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  opacity: 1;
  transition: opacity var(--transition);
}
.footer__logo:hover .footer__logo-img { opacity: 1; }
.footer__address {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
}

.footer__nav {
  display: flex; flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: flex-end;
}
.footer__link {
  font-family: var(--font-ja);
  font-size: 0.78rem; font-weight: 400;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--color-yellow); }

.footer__bottom { text-align: center; }
.footer__copy {
  font-family: var(--font-en);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.05em;
}

/* =============================
   Responsive – Tablet
============================= */
@media (max-width: 900px) {
  .about__inner { grid-template-columns: 1fr; }
  .about__stats {
    flex-direction: row;
    padding-left: 0; border-left: none;
    border-top: 3px solid var(--color-yellow);
    padding-top: 2.5rem;
    justify-content: space-between;
  }
  .service__grid { grid-template-columns: repeat(2, 1fr); }
  .works__numbers { grid-template-columns: repeat(2, 1fr); }
  .works__cases { grid-template-columns: 1fr; }
  .works__grid { grid-template-columns: repeat(2, 1fr); }
  .equipment__grid { grid-template-columns: repeat(2, 1fr); }
  /* .greeting__inner は削除済み */
  .flow__steps { grid-template-columns: repeat(2, 1fr); }
  .company__layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* =============================
   Responsive – Nav collapse (≤1100px)
============================= */
@media (max-width: 1100px) {
  .nav__menu {
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: center; justify-content: center;
    gap: 0;
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    border-top: 3px solid var(--color-yellow);
    overflow-y: auto;
    z-index: 999;
  }
  .nav__menu.open { opacity: 1; visibility: visible; }
  .nav__menu li { width: 100%; text-align: center; border-bottom: 1px solid var(--color-gray-100); }
  .nav__link {
    display: block;
    padding: 1.1rem 2rem;
    font-size: 1rem;
    font-family: var(--font-ja);
    color: var(--color-black) !important;
    letter-spacing: 0.06em;
  }
  .nav__link::after { display: none; }
  .nav__link--cta {
    display: block;
    margin: 1.5rem 2rem;
    padding: 1rem 2rem;
    background: var(--color-yellow);
    color: var(--color-black) !important;
    border: 2px solid var(--color-yellow);
    font-size: 0.9rem;
  }
  .nav__hamburger { display: flex; }
}

/* =============================
   Responsive – Mobile
============================= */
@media (max-width: 640px) {

  .hero__logo-name { font-size: clamp(4rem, 22vw, 7rem); }

  .service__grid { grid-template-columns: 1fr; }
  .works__numbers { grid-template-columns: repeat(2, 1fr); }
  .works__grid { grid-template-columns: 1fr; }
  .equipment__grid { grid-template-columns: 1fr; }
  .greeting.section {
    background-position: center top;
    background-attachment: scroll;
  }
  .greeting__card { width: 90%; padding: 1.75rem 1.5rem; }
  .greeting__sign-name { font-size: 1.6rem; }
  .flow__steps { grid-template-columns: 1fr; }

  .about__stats { flex-direction: column; gap: 1.5rem; }

  .footer__inner { flex-direction: column; align-items: flex-start; }
  .footer__nav { justify-content: flex-start; }

  .company-table th { white-space: normal; width: 36%; }
  .company-table th, .company-table td { padding: 0.85rem; font-size: 0.82rem; }

  .contact-phone__number { font-size: 2.4rem; }
  .work-case { flex-direction: column; gap: 0.75rem; }
  .work-case__num { font-size: 1.25rem; }
}