/* ==========================================================================
   BREEZEAIR - Modern Air Conditioning Company
   White & Dark Gray Theme / Responsive
   ========================================================================== */

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

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f7f8;
  --color-text: #1a1d21;
  --color-text-sub: #5a6068;
  --color-text-light: #8a8f96;
  --color-dark: #1a1d21;
  --color-dark-2: #2a2e34;
  --color-border: #e5e7ea;
  --color-accent: #1a1d21;
  --color-white: #ffffff;

  --font-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;

  --container: 1200px;
  --gutter: 24px;
  --header-h: 130px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-jp);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s var(--ease), color 0.2s var(--ease);
}

a:hover {
  opacity: 0.7;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: 120px 0;
}

.sp-only {
  display: none;
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-text-light);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-sub);
  max-width: 640px;
  margin: 0 auto;
}

.section-header.light .section-label,
.section-header.light .section-title,
.section-header.light .section-desc {
  color: var(--color-white);
}

.section-header.light .section-label {
  color: rgba(255, 255, 255, 0.6);
}

.section-header.light .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 36px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-dark-2);
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 29, 33, 0.2);
}

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  opacity: 1;
}

.btn-block {
  width: 100%;
  padding: 18px;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s var(--ease);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-weight: 700;
}

/* Header logo: cropped background so we can trim the PNG's built-in padding */
.logo-img {
  display: block;
  width: 360px;
  height: 100px;
  background-image: url('assets/logo-horizontal.png');
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

img.logo-img {
  width: auto;
  height: 100px;
  background: none;
}

.logo-canvas {
  display: block;
  height: 100px;
  width: auto;
  max-width: 60vw;
}

.logo-canvas-footer {
  display: block;
  height: 200px;
  width: auto;
  max-width: 100%;
}

@media (max-width: 768px) {
  .logo-img {
    width: 220px;
    height: 60px;
  }
  img.logo-img {
    height: 60px;
  }
  .logo-canvas {
    height: 56px;
  }
  .logo-canvas-footer {
    height: 120px;
  }
}

.logo-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-dark);
  color: var(--color-white);
  font-size: 18px;
  border-radius: 4px;
}

.logo-text {
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--color-dark);
}

.logo-text em {
  font-style: normal;
  font-weight: 400;
  color: var(--color-text-light);
  margin-left: 2px;
}

.global-nav ul {
  display: flex;
  align-items: center;
  gap: 40px;
}

.global-nav a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
}

.global-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-dark);
  transition: width 0.3s var(--ease);
}

.global-nav a:not(.nav-cta):hover {
  opacity: 1;
}

.global-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-sns {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-sns:hover {
  transform: translateY(-2px);
  opacity: 0.85;
}

.nav-sns svg {
  display: block;
  width: 32px;
  height: 32px;
}

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

.footer-sns {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.05em;
  transition: opacity 0.3s var(--ease);
}

.footer-sns:hover {
  opacity: 0.8;
}

.footer-sns svg {
  display: block;
}

.nav-cta {
  background: var(--color-dark);
  color: var(--color-white) !important;
  padding: 10px 22px !important;
  border-radius: 2px;
}

.nav-cta:hover {
  background: var(--color-dark-2);
  opacity: 1;
}

.hamburger {
  display: none;
  width: 32px;
  height: 24px;
  position: relative;
  z-index: 110;
}

.hamburger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transition: all 0.3s var(--ease);
}

.hamburger span:nth-child(1) { top: 2px; }
.hamburger span:nth-child(2) { top: 11px; }
.hamburger span:nth-child(3) { top: 20px; }

.hamburger.active span:nth-child(1) {
  top: 11px;
  transform: rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  top: 11px;
  transform: rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--color-white);
  padding-top: var(--header-h);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(135deg, rgba(26, 29, 33, 0.55) 0%, rgba(26, 29, 33, 0.35) 50%, rgba(26, 29, 33, 0.7) 100%),
    url('assets/hero-ac.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.03) 0%, transparent 40%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26, 29, 33, 0.1) 0%, rgba(26, 29, 33, 0.6) 100%);
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 60px;
  padding-bottom: 80px;
}

.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.04em;
  margin-bottom: 32px;
}

.hero-lead {
  font-size: 17px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 48px;
  max-width: 560px;
}

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

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.6);
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, transparent 100%);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Numbers ---------- */
.numbers {
  background: var(--color-bg-alt);
  padding: 60px 0;
  border-bottom: 1px solid var(--color-border);
}

.numbers-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.numbers-list li {
  text-align: center;
  padding: 0 16px;
  border-right: 1px solid var(--color-border);
}

.numbers-list li:last-child {
  border-right: none;
}

.numbers-list .num {
  display: block;
  font-family: var(--font-en);
  font-size: 44px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.numbers-list .num em {
  font-style: normal;
  font-size: 22px;
  color: var(--color-text-light);
  margin-left: 2px;
}

.numbers-list .label {
  font-size: 13px;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
}

/* ---------- Concept ---------- */
.concept {
  background: var(--color-bg);
}

.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.concept-image-wrap {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.concept-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.concept-badge {
  position: absolute;
  bottom: 24px;
  right: 24px;
  background: var(--color-white);
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-en);
}

.concept-badge span {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-text-light);
  text-transform: uppercase;
}

.concept-badge strong {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1;
  margin-top: 4px;
}

.concept-heading {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  margin-bottom: 28px;
  color: var(--color-dark);
}

.concept-text {
  font-size: 15px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
  line-height: 2;
}

.concept-pillars {
  margin-top: 40px;
  display: grid;
  gap: 20px;
}

.pillar {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: var(--color-bg-alt);
  border-left: 2px solid var(--color-dark);
}

.pillar-icon {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  flex-shrink: 0;
}

.pillar strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
  color: var(--color-dark);
}

.pillar p {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* ---------- Strength ---------- */
.strength {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.strength::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 60%;
  height: 100%;
  background-image:
    linear-gradient(rgba(26, 29, 33, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 29, 33, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.strength .container {
  position: relative;
  z-index: 1;
}

.strength-hero {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px;
  background: var(--color-dark);
  color: var(--color-white);
  margin-bottom: 56px;
}

.strength-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 24px;
  text-align: center;
}

.badge-num {
  font-family: var(--font-en);
  font-size: 72px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.badge-num em {
  font-style: normal;
  font-size: 36px;
  color: rgba(255, 255, 255, 0.7);
}

.badge-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.25em;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  line-height: 1.6;
}

.strength-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.strength-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}

.strength-title em {
  font-style: normal;
  background: linear-gradient(transparent 65%, rgba(255, 255, 255, 0.2) 65%);
}

.strength-text {
  font-size: 14px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 14px;
}

.strength-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.strength-points li {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: all 0.3s var(--ease);
}

.strength-points li:hover {
  border-color: var(--color-dark);
  transform: translateY(-2px);
}

.point-num {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  flex-shrink: 0;
  padding-top: 2px;
}

.strength-points strong {
  display: block;
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-dark);
  letter-spacing: 0.03em;
}

.strength-points p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--color-text-sub);
}

@media (max-width: 768px) {
  .strength-hero {
    grid-template-columns: 1fr;
    padding: 28px 24px;
    gap: 28px;
  }
  .strength-badge {
    aspect-ratio: auto;
    flex-direction: row;
    gap: 16px;
    padding: 20px;
  }
  .badge-num {
    font-size: 48px;
  }
  .badge-num em {
    font-size: 24px;
  }
  .badge-label {
    text-align: left;
    margin-top: 0;
  }
  .strength-title {
    font-size: 20px;
  }
  .strength-points {
    grid-template-columns: 1fr;
  }
}

/* ---------- Service ---------- */
.service {
  background: var(--color-bg-alt);
}

.service-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.tab-btn {
  padding: 16px 40px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
  position: relative;
  transition: color 0.3s var(--ease);
}

.tab-btn::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--color-dark);
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s var(--ease);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.service-card {
  background: var(--color-white);
  padding: 40px 32px;
  transition: all 0.3s var(--ease);
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border);
  box-shadow: 0 12px 32px rgba(26, 29, 33, 0.06);
}

.card-icon {
  width: 56px;
  height: 56px;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-dark);
  letter-spacing: 0.03em;
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
  line-height: 1.9;
}

.card-list {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.card-list li {
  font-size: 13px;
  color: var(--color-text-sub);
  padding: 6px 0 6px 18px;
  position: relative;
}

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--color-dark);
}

.service-flow {
  margin-top: 100px;
  padding: 56px 48px;
  background: var(--color-white);
}

.flow-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--color-dark);
  letter-spacing: 0.05em;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}

.flow-steps li {
  text-align: center;
  position: relative;
}

.flow-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 18px;
  right: -8px;
  width: 16px;
  height: 1px;
  background: var(--color-border);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-dark);
  color: var(--color-dark);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 16px;
  border-radius: 50%;
}

.step-body strong {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--color-dark);
}

.step-body p {
  font-size: 12px;
  color: var(--color-text-sub);
  line-height: 1.6;
}

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

.company-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
  align-items: start;
}

.company-table {
  width: 100%;
}

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

.company-table tr:first-child {
  border-top: 1px solid var(--color-border);
}

.company-table th,
.company-table td {
  padding: 20px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.company-table th {
  width: 160px;
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.company-table td {
  color: var(--color-text);
  line-height: 1.8;
}

.company-table a {
  color: var(--color-dark);
  font-weight: 500;
  border-bottom: 1px solid currentColor;
}

.map-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(20%);
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.map-pin {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-dark);
  letter-spacing: 0.03em;
}

.map-pin svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* ---------- Partner ---------- */
.partner {
  background: var(--color-bg-alt);
}

.partner-card {
  background: var(--color-white);
  padding: 64px;
  max-width: 960px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-dark);
}

.partner-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 32px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.partner-logo {
  max-height: 80px;
  width: auto;
  max-width: 100%;
  display: block;
}

@media (max-width: 768px) {
  .partner-logo-wrap {
    padding: 20px;
    margin-bottom: 24px;
  }
  .partner-logo {
    max-height: 60px;
  }
}

.partner-eyebrow {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.partner-name {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.partner-lead {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: 32px;
}

.partner-meta {
  display: grid;
  gap: 0;
  margin-bottom: 32px;
  border-top: 1px solid var(--color-border);
}

.partner-meta > div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.partner-meta dt {
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 0.08em;
  font-weight: 500;
}

.partner-meta dd {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.partner-note {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-text-sub);
  padding: 20px 24px;
  background: var(--color-bg-alt);
  border-left: 2px solid var(--color-dark);
  margin-bottom: 32px;
}

.partner-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  background: var(--color-dark);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all 0.3s var(--ease);
}

.partner-link:hover {
  background: var(--color-dark-2);
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(26, 29, 33, 0.2);
}

@media (max-width: 768px) {
  .partner-card {
    padding: 32px 24px;
  }
  .partner-name {
    font-size: 20px;
  }
  .partner-meta > div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 12px 0;
  }
  .partner-link {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- Contact ---------- */
.contact {
  position: relative;
  padding: 120px 0;
  color: var(--color-white);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a1d21 0%, #2a2e34 100%);
  z-index: 0;
}

.contact-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.contact-inner {
  position: relative;
  z-index: 1;
}

.contact-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 64px;
}

.contact-options.single {
  grid-template-columns: 1fr;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all 0.3s var(--ease);
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  opacity: 1;
  transform: translateY(-2px);
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.8);
}

.contact-card-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-type {
  font-size: 12px;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.6);
}

.contact-tel {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-white);
}

.contact-action {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
}

.contact-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 2px;
}

.contact-form-wrap {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-white);
  padding: 56px;
  color: var(--color-text);
}

.form-title {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: var(--color-dark);
  letter-spacing: 0.05em;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-dark);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.required {
  display: inline-block;
  font-size: 10px;
  padding: 2px 8px;
  background: var(--color-dark);
  color: var(--color-white);
  border-radius: 2px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: inherit;
  font-size: 14px;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  transition: all 0.2s var(--ease);
  border-radius: 2px;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-dark);
  background: var(--color-white);
}

.form-group textarea {
  resize: vertical;
  font-family: inherit;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 64px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo-text {
  color: var(--color-white);
}

.footer-brand .logo-mark {
  background: var(--color-white);
  color: var(--color-dark);
}

.footer-brand p {
  font-size: 13px;
  margin-top: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}

.footer-nav ul {
  display: flex;
  gap: 32px;
}

.footer-nav a {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom small {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--color-dark);
  color: var(--color-white);
  padding: 14px 28px;
  font-size: 14px;
  border-radius: 2px;
  z-index: 200;
  transition: transform 0.4s var(--ease);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ==========================================================================
   Responsive - Tablet
   ========================================================================== */
@media (max-width: 1024px) {
  .section {
    padding: 96px 0;
  }

  .concept-grid {
    gap: 56px;
  }

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

  .flow-steps {
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
  }

  .flow-steps li:not(:last-child)::after {
    display: none;
  }
}

/* ==========================================================================
   Responsive - Mobile
   ========================================================================== */
@media (max-width: 768px) {
  :root {
    --gutter: 20px;
    --header-h: 88px;
  }

  .section {
    padding: 72px 0;
  }

  .sp-only {
    display: inline;
  }

  /* Header */
  .global-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-white);
    padding: calc(var(--header-h) + 40px) 32px 32px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    z-index: 105;
  }

  .global-nav.active {
    transform: translateX(0);
  }

  .global-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .global-nav li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .global-nav a {
    display: block;
    padding: 20px 0;
    font-size: 16px;
  }

  .global-nav a:not(.nav-cta)::after {
    display: none;
  }

  .nav-cta {
    margin-top: 24px;
    text-align: center;
    padding: 16px !important;
  }

  .hamburger {
    display: block;
  }

  /* Section Header */
  .section-header {
    margin-bottom: 48px;
  }

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

  /* Hero */
  .hero {
    min-height: 88vh;
  }

  .hero-content {
    padding-top: 40px;
    padding-bottom: 60px;
  }

  .hero-title {
    font-size: 32px;
    margin-bottom: 24px;
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 36px;
  }

  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
    padding: 16px;
  }

  .hero-scroll-indicator {
    display: none;
  }

  /* Numbers */
  .numbers {
    padding: 40px 0;
  }

  .numbers-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 16px;
  }

  .numbers-list li {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 24px;
  }

  .numbers-list li:nth-last-child(-n+2) {
    border-bottom: none;
    padding-bottom: 0;
  }

  .numbers-list .num {
    font-size: 36px;
  }

  /* Concept */
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .concept-image-wrap {
    aspect-ratio: 4 / 3;
  }

  .placeholder-icon {
    width: 80px;
    height: 80px;
  }

  .concept-heading {
    font-size: 22px;
  }

  .concept-text {
    font-size: 14px;
  }

  /* Service */
  .service-tabs {
    margin-bottom: 32px;
  }

  .tab-btn {
    padding: 14px 20px;
    font-size: 13px;
    flex: 1;
  }

  .service-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-card {
    padding: 32px 24px;
  }

  .service-flow {
    margin-top: 64px;
    padding: 40px 24px;
  }

  .flow-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .flow-steps li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    text-align: left;
  }

  .step-num {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  /* Company */
  .company-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
    padding: 12px 0;
  }

  .company-table th {
    padding-top: 16px;
    padding-bottom: 4px;
    font-size: 12px;
  }

  .company-table tr {
    padding: 8px 0;
  }

  /* Contact */
  .contact {
    padding: 72px 0;
  }

  .contact-options {
    grid-template-columns: 1fr;
    margin-bottom: 40px;
  }

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

  .contact-tel {
    font-size: 22px;
  }

  .contact-form-wrap {
    padding: 32px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-row .form-group {
    margin-bottom: 20px;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 32px;
    padding-bottom: 32px;
  }

  .footer-nav ul {
    flex-wrap: wrap;
    gap: 16px 24px;
  }
}

@media (max-width: 380px) {
  .hero-title {
    font-size: 28px;
  }

  .section-title {
    font-size: 22px;
  }

  .numbers-list .num {
    font-size: 30px;
  }
}