/* ============================================
   HARBOR解体 - Maritime Industrial Design
   ============================================ */

:root {
  --navy: #0B1D33;
  --navy-light: #112844;
  --navy-dark: #070F1A;
  --steel: #4682B4;
  --steel-light: #5A9FD4;
  --steel-dark: #3A6D96;
  --white: #FFFFFF;
  --gray-50: #F8FAFB;
  --gray-100: #EEF2F5;
  --gray-200: #D8DFE6;
  --gray-300: #B0BCC7;
  --gray-600: #5A6B7A;
  --gray-700: #3D4E5C;
  --gray-800: #2A3845;
  --shadow-sm: 0 2px 8px rgba(11,29,51,0.08);
  --shadow-md: 0 8px 32px rgba(11,29,51,0.12);
  --shadow-lg: 0 16px 48px rgba(11,29,51,0.16);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  color: var(--navy);
  line-height: 1.8;
  background: var(--white);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

/* ---- Sample Banner ---- */
.sample-banner {
  background: var(--steel);
  color: var(--white);
  text-align: center;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1001;
}

.sample-banner a {
  color: var(--white);
  text-decoration: underline;
  font-weight: 700;
}

/* ---- Section Defaults ---- */
.section {
  padding: 100px 0;
  position: relative;
}

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--steel);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-label-light {
  color: var(--steel-light);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 20px;
  color: var(--navy);
}

.section-title-light {
  color: var(--white);
}

.section-subtitle {
  font-size: 16px;
  color: var(--gray-600);
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.8;
}

.section-subtitle-light {
  color: rgba(255,255,255,0.7);
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11,29,51,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  margin-top: 37px;
}

.header.scrolled {
  margin-top: 0;
  background: rgba(11,29,51,0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.logo-en {
  font-family: 'Inter', sans-serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.04em;
}

.logo-jp {
  font-size: 16px;
  font-weight: 700;
  color: var(--steel-light);
}

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

.nav-desktop a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.02em;
  position: relative;
}

.nav-desktop a:hover {
  color: var(--white);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--steel-light);
  transition: var(--transition);
}

.nav-desktop a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--steel);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600 !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--steel-light);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1002;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--navy);
  z-index: 999;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-inner {
  padding: 120px 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: block;
  font-size: 18px;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-nav-link:hover {
  color: var(--steel-light);
}

.mobile-nav-cta {
  display: block;
  background: var(--steel);
  color: var(--white);
  text-align: center;
  padding: 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  margin-top: 24px;
}

.mobile-nav-tel {
  margin-top: 32px;
  text-align: center;
}

.mobile-nav-tel span {
  display: block;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  margin-bottom: 8px;
}

.mobile-nav-tel a {
  font-family: 'Inter', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--steel-light);
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 109px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,29,51,0.88) 0%, rgba(11,29,51,0.65) 50%, rgba(11,29,51,0.75) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.hero-badge {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--steel-light);
  background: rgba(70,130,180,0.15);
  border: 1px solid rgba(70,130,180,0.3);
  padding: 8px 20px;
  border-radius: 40px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.25;
  color: var(--white);
  margin-bottom: 24px;
}

.hero-line {
  display: block;
}

.hero-line-accent {
  color: var(--steel-light);
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--steel);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--steel-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(70,130,180,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

/* Hero Wave */
.hero-wave {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  z-index: 3;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
}

/* ---- About ---- */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  text-align: center;
}

.about-icon-wrap {
  max-width: 280px;
  margin: 0 auto 24px;
}

.about-icon-wrap svg {
  width: 100%;
  height: auto;
}

.about-year {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  background: var(--gray-50);
  padding: 16px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}

.about-year-num {
  font-family: 'Inter', sans-serif;
  font-size: 56px;
  font-weight: 900;
  color: var(--steel);
  line-height: 1;
}

.about-year-unit {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}

.about-text p {
  color: var(--gray-600);
  margin-bottom: 16px;
  font-size: 15px;
}

.about-lead {
  font-size: 18px !important;
  font-weight: 500;
  color: var(--navy) !important;
  margin-bottom: 20px !important;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--navy);
}

.about-feature svg {
  flex-shrink: 0;
}

/* ---- Services ---- */
.services {
  background: var(--navy);
  padding: 100px 0 120px;
  overflow: hidden;
}

.services-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 800px 600px at 20% 80%, rgba(70,130,180,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 600px 400px at 80% 20%, rgba(70,130,180,0.08) 0%, transparent 60%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  position: relative;
}

.service-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
}

.service-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(70,130,180,0.3);
  transform: translateY(-4px);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-list li {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  padding-left: 20px;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--steel-light);
  border-radius: 1px;
}

/* ---- Equipment ---- */
.equipment {
  background: var(--gray-50);
}

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

.equipment-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.equipment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.equipment-icon-wrap {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
}

.equipment-icon-wrap svg {
  width: 100%;
  height: 100%;
}

.equipment-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-100);
}

.equipment-spec {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.spec-row span {
  color: var(--gray-600);
}

.spec-row strong {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  color: var(--navy);
}

/* ---- Works ---- */
.works {
  background: var(--white);
}

.works-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.work-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.work-card:hover {
  box-shadow: var(--shadow-md);
}

.work-card:nth-child(even) {
  direction: rtl;
}

.work-card:nth-child(even) > * {
  direction: ltr;
}

.work-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.work-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.work-card:hover .work-image img {
  transform: scale(1.05);
}

.work-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--steel);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 6px;
}

.work-info {
  padding: 32px;
}

.work-info h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.4;
}

.work-info p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 20px;
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.work-meta span {
  font-size: 12px;
  font-weight: 600;
  color: var(--steel-dark);
  background: rgba(70,130,180,0.1);
  padding: 6px 12px;
  border-radius: 6px;
}

/* ---- Numbers ---- */
.numbers {
  background: var(--navy);
  overflow: hidden;
}

.numbers-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 500px 500px at 90% 50%, rgba(70,130,180,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 400px 400px at 10% 50%, rgba(70,130,180,0.08) 0%, transparent 60%);
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.number-item {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
}

.number-value {
  font-family: 'Inter', sans-serif;
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 900;
  color: var(--steel-light);
  line-height: 1;
  margin-bottom: 12px;
}

.number-suffix {
  font-size: 0.45em;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  margin-left: 4px;
}

.number-label {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
}

/* ---- Flow ---- */
.flow {
  background: var(--gray-50);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.flow-step {
  display: flex;
  gap: 20px;
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.flow-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.flow-num {
  font-family: 'Inter', sans-serif;
  font-size: 36px;
  font-weight: 900;
  color: var(--steel);
  opacity: 0.3;
  line-height: 1;
  flex-shrink: 0;
}

.flow-content h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.flow-content p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.8;
}

/* ---- Company ---- */
.company {
  background: var(--white);
}

.company-table-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table tr {
  border-bottom: 1px solid var(--gray-100);
}

.company-table th,
.company-table td {
  padding: 18px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}

.company-table th {
  font-weight: 700;
  color: var(--navy);
  width: 160px;
  background: var(--gray-50);
  white-space: nowrap;
}

.company-table td {
  color: var(--gray-700);
}

/* ---- Contact ---- */
.contact {
  background: var(--navy);
  padding: 100px 0 120px;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 50% 100%, rgba(70,130,180,0.12) 0%, transparent 60%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  position: relative;
}

.contact-tel-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.contact-tel-icon {
  width: 64px;
  height: 64px;
  background: var(--steel);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.contact-tel-label {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

.contact-tel-num {
  font-family: 'Inter', sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
}

.contact-tel-num:hover {
  color: var(--steel-light);
}

.contact-tel-hours {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.contact-form-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  margin-bottom: 6px;
}

.req {
  font-size: 11px;
  color: var(--steel-light);
  background: rgba(70,130,180,0.2);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  color: var(--white);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.3);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--steel);
  background: rgba(255,255,255,0.1);
}

.form-group select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%234682B4' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.form-group select option {
  background: var(--navy);
  color: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ---- Footer ---- */
.footer {
  background: var(--navy-dark);
  padding: 64px 0 32px;
  color: rgba(255,255,255,0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  padding: 4px 0;
}

.footer-col a:hover {
  color: var(--steel-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 13px;
}

.footer-credit a {
  color: var(--steel-light);
}

.footer-credit a:hover {
  color: var(--white);
}

/* ---- Animations ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .equipment-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: 90vh;
    padding-top: 100px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    text-align: center;
  }

  .work-card {
    grid-template-columns: 1fr;
  }

  .work-card:nth-child(even) {
    direction: ltr;
  }

  .work-info {
    padding: 24px;
  }

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

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .number-item {
    padding: 24px 12px;
  }

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

  .company-table th {
    width: 110px;
    font-size: 13px;
  }

  .company-table td {
    font-size: 14px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .hero-wave svg {
    height: 50px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 26px;
  }

  .header-inner {
    height: 60px;
  }

  .logo-en {
    font-size: 18px;
  }

  .logo-jp {
    font-size: 14px;
  }

  .number-value {
    font-size: 36px;
  }

  .contact-tel-num {
    font-size: 24px;
  }

  .contact-form-card {
    padding: 24px 16px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}