/* ==========================================================================
   Corporate Site - Main Stylesheet
   - PC first
   - Custom Properties for color/spacing
   - Breakpoints: 1200px / 768px (responsive.css)
   ========================================================================== */

/* ============================
   1. CSS Custom Properties
   ============================ */
:root {
  /* Color Palette */
  --color-bg-dark:        #0B1F3A;
  --color-bg-darker:      #070F1F;
  --color-bg-light:       #FFFFFF;
  --color-bg-gray:        #F7F8FA;

  --color-text-base:      #1A2233;
  --color-text-sub:       #5A6478;
  --color-text-light:     #FFFFFF;
  --color-text-light-80:  rgba(255, 255, 255, 0.80);
  --color-text-light-60:  rgba(255, 255, 255, 0.60);
  --color-text-light-40:  rgba(255, 255, 255, 0.40);

  --color-accent:         #1E6FFF;
  --color-accent-hover:   #155DDC;
  --color-accent-soft:    rgba(30, 111, 255, 0.10);

  --color-border:         #E3E7EE;
  --color-border-light:   rgba(255, 255, 255, 0.12);

  /* Typography */
  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --container-max:        1200px;
  --container-pad:        40px;
  --header-h-pc:          80px;
  --header-h-sp:          64px;

  /* Motion */
  --ease-out:             cubic-bezier(0.22, 1, 0.36, 1);
  --dur-base:             600ms;

  /* Radius */
  --radius-btn:           4px;
  --radius-card:          6px;
}

/* ============================
   2. Reset & Base
   ============================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-base);
  background: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, opacity 0.25s ease;
}

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

address {
  font-style: normal;
}

/* ============================
   3. Layout Helpers
   ============================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.pc-only { display: inline; }
.sp-only { display: none; }

/* ============================
   4. Common - Section Head
   ============================ */
.section-label {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 40px;
  line-height: 1.4;
  color: var(--color-text-base);
  letter-spacing: 0.02em;
}

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

.section-lead {
  margin-top: 24px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-sub);
}

.section-lead--light {
  color: var(--color-text-light-80);
}

.section-head {
  margin-bottom: 64px;
}

.section-head--center {
  text-align: center;
}

.section-head--center .section-lead {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-foot {
  margin-top: 64px;
}

.section-foot--center {
  text-align: center;
}

/* ============================
   5. Common - Buttons
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 28px;
  min-height: 48px;
  font-family: var(--font-jp);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: all 0.3s var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
}

.btn i { font-size: 12px; transition: transform 0.3s var(--ease-out); }
.btn:hover i { transform: translateX(4px); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 10px 30px -10px rgba(30, 111, 255, 0.55);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-text-base);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--header {
  padding: 10px 20px;
  min-height: 40px;
  font-size: 14px;
}

.btn--large {
  min-height: 56px;
  padding: 16px 32px;
  font-size: 15px;
}

.btn--xl {
  min-height: 64px;
  padding: 20px 40px;
  font-size: 16px;
  min-width: 260px;
}

/* ============================
   6. Common - Text Link
   ============================ */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: 14px;
  color: var(--color-accent);
  position: relative;
  padding-bottom: 4px;
}
.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.4s var(--ease-out);
}
.text-link:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}
.text-link i { font-size: 11px; transition: transform 0.3s var(--ease-out); }
.text-link:hover i { transform: translateX(4px); }

.text-link--light {
  color: var(--color-text-light);
}
.text-link--light::after {
  background: var(--color-text-light);
}

.text-link--head {
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ============================
   7. Reveal Animation
   ============================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================
   8. Header
   ============================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h-pc);
  z-index: 100;
  transition: background 0.35s ease, backdrop-filter 0.35s ease, height 0.35s ease;
  background: rgba(11, 31, 58, 0.0);
}

.site-header.is-scrolled {
  background: rgba(11, 31, 58, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--container-pad);
  max-width: 1440px;
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-light);
}
.logo-mark {
  display: inline-flex;
  width: 32px;
  height: 32px;
  color: var(--color-text-light);
}
.logo-mark svg { width: 100%; height: 100%; }

.logo-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-text__en {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.12em;
}
.logo-text__tag {
  font-family: var(--font-jp);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--color-text-light-60);
  margin-top: 2px;
}

/* Global Nav */
.global-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.global-nav__list {
  display: flex;
  gap: 28px;
}
.global-nav__list > li > a {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--color-text-light);
  padding: 6px 4px;
  position: relative;
}
.global-nav__list > li > a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s var(--ease-out), left 0.3s var(--ease-out);
}
.global-nav__list > li > a:hover::after {
  width: 24px;
  left: calc(50% - 12px);
}
.nav-en {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.nav-jp {
  font-size: 10px;
  color: var(--color-text-light-60);
  letter-spacing: 0.05em;
}

/* Hamburger */
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 110;
}
.hamburger span {
  position: absolute;
  left: 8px;
  width: 24px;
  height: 2px;
  background: var(--color-text-light);
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out), top 0.3s var(--ease-out);
}
.hamburger span:nth-child(1) { top: 12px; }
.hamburger span:nth-child(2) { top: 19px; }
.hamburger span:nth-child(3) { top: 26px; }

.hamburger.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ============================
   9. Hero
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  overflow: hidden;
  padding-top: var(--header-h-pc);
  display: flex;
  align-items: center;
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.5;
  pointer-events: none;
}

.hero__particles {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(30, 111, 255, 0.25), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(30, 111, 255, 0.12), transparent 55%);
  pointer-events: none;
  animation: heroGlow 12s ease-in-out infinite alternate;
}
@keyframes heroGlow {
  0%   { opacity: 0.7; }
  100% { opacity: 1; }
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 80px var(--container-pad);
  display: grid;
  grid-template-columns: 55% 45%;
  gap: 60px;
  align-items: center;
}

.hero__content { max-width: 600px; }

.hero__sub-en {
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero__title {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 60px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: #fff;
}

.hero__lead {
  margin-top: 32px;
  font-size: 16px;
  line-height: 2;
  color: var(--color-text-light-80);
}

.hero__cta {
  margin-top: 48px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__visual {
  position: relative;
  height: 70vh;
  min-height: 480px;
  max-height: 640px;
}

.hero__visual-frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 4px;
  background: linear-gradient(135deg, #0E2B52 0%, #1B3F70 100%);
}
.hero__visual-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}
.hero__visual-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(11, 31, 58, 0.85) 0%, rgba(11, 31, 58, 0.25) 45%, rgba(11, 31, 58, 0) 100%);
}

.hero__vertical-text {
  position: absolute;
  right: -8px;
  bottom: 16px;
  writing-mode: vertical-rl;
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--color-text-light-60);
  text-transform: uppercase;
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 3;
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: var(--color-text-light-60);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::before {
  content: "";
  position: absolute;
  top: -48px;
  left: 0;
  width: 100%;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--color-text-light));
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { top: -48px; }
  100% { top: 100%; }
}
.hero__scroll-text {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--color-text-light-60);
}

/* ============================
   10. Business
   ============================ */
.business {
  padding: 120px 0;
  background: var(--color-bg-light);
}

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

.business-card {
  position: relative;
  padding: 48px 32px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s var(--ease-out);
}
.business-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px -28px rgba(11, 31, 58, 0.25);
  border-color: var(--color-accent);
}

.business-card__num {
  position: absolute;
  top: 24px;
  right: 32px;
  font-family: var(--font-en);
  font-weight: 200;
  font-size: 56px;
  color: #E8ECF3;
  line-height: 1;
  letter-spacing: 0.02em;
}

.business-card__icon {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 34px;
  margin-bottom: 28px;
  background: var(--color-accent-soft);
  border-radius: 50%;
}

.business-card__en {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.business-card__title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text-base);
}

.business-card__desc {
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

/* ============================
   11. Strength
   ============================ */
.strength {
  position: relative;
  padding: 120px 0;
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  overflow: hidden;
}

.strength__bg-grid {
  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;
  pointer-events: none;
  opacity: 0.7;
}
.strength .container { position: relative; z-index: 2; }

.strength__list {
  display: grid;
  gap: 32px;
  margin-bottom: 96px;
}

.strength-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--color-border-light);
}
.strength-item:last-child {
  border-bottom: 1px solid var(--color-border-light);
}

.strength-item__num {
  font-family: var(--font-en);
  font-weight: 200;
  font-size: 96px;
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.strength-item__title {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--color-text-light);
}

.strength-item__desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-light-80);
}

/* Numbers */
.strength__numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 64px;
}

.number-item {
  text-align: center;
}
.number-item__value {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  color: var(--color-text-light);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}
.number-item__unit {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-text-light-80);
  font-family: var(--font-jp);
}
.number-item__label {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-light-60);
  letter-spacing: 0.05em;
}

/* ============================
   12. Recruit
   ============================ */
.recruit {
  background: var(--color-bg-light);
  overflow: hidden;
}

.recruit__inner {
  display: grid;
  grid-template-columns: 40% 60%;
  align-items: center;
  min-height: 720px;
}

.recruit__content {
  padding: 120px var(--container-pad) 120px max(var(--container-pad), calc((100vw - var(--container-max)) / 2 + var(--container-pad)));
}

.recruit__lead {
  margin-top: 28px;
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
}

.recruit__cta {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.recruit__cta .btn { min-width: 260px; }

.recruit__sublinks {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--color-text-sub);
}
.recruit__sublinks a {
  position: relative;
  color: var(--color-text-base);
  font-weight: 500;
}
.recruit__sublinks a:hover { color: var(--color-accent); }

.recruit__visual {
  position: relative;
  height: 100%;
  min-height: 720px;
}

.recruit__main-photo {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 560px;
  overflow: hidden;
  background: linear-gradient(135deg, #d8dde6, #b6bfd0);
}
.recruit__main-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.recruit__vertical-text {
  position: absolute;
  top: 32px;
  right: 24px;
  writing-mode: vertical-rl;
  font-family: var(--font-en);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.4em;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.recruit__thumbs {
  position: absolute;
  left: -64px;
  bottom: 32px;
  display: grid;
  grid-template-columns: repeat(3, 120px);
  gap: 16px;
}
.recruit__thumbs li {
  width: 120px;
  height: 84px;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: 0 10px 30px -10px rgba(11, 31, 58, 0.3);
  background: #d8dde6;
}
.recruit__thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================
   13. News
   ============================ */
.news {
  padding: 120px 0;
  background: var(--color-bg-gray);
}

.news__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 56px;
  gap: 24px;
}

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

.news-card {
  background: transparent;
  border-radius: var(--radius-card);
  transition: background 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.news-card:hover {
  background: #fff;
  box-shadow: 0 20px 50px -24px rgba(11, 31, 58, 0.2);
  transform: translateY(-4px);
}

.news-card__link {
  display: block;
  padding: 28px;
  height: 100%;
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.news-card__cat {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.08em;
  border-radius: 2px;
  line-height: 1.4;
}

.news-card__date {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 13px;
  color: var(--color-text-sub);
  letter-spacing: 0.05em;
}

.news-card__title {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--color-text-base);
  margin-bottom: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__hr {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin-bottom: 16px;
}

.news-card__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}
.news-card__more i { transition: transform 0.3s var(--ease-out); }
.news-card:hover .news-card__more i { transform: translateX(4px); }

/* ============================
   14. Contact CTA
   ============================ */
.contact-cta {
  position: relative;
  padding: 160px 0;
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  overflow: hidden;
  text-align: center;
}

.contact-cta__bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 280px;
  line-height: 1;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
}

.contact-cta__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(30, 111, 255, 0.18), transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(30, 111, 255, 0.10), transparent 50%);
  pointer-events: none;
}

.contact-cta__inner {
  position: relative;
  z-index: 2;
}

.contact-cta__title {
  font-size: 52px;
  margin-bottom: 24px;
}

.contact-cta__lead {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-light-80);
  margin-bottom: 48px;
}

.contact-cta__btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.contact-cta__tel {
  padding-top: 40px;
  border-top: 1px solid var(--color-border-light);
  display: inline-block;
}
.contact-cta__tel-label {
  font-size: 13px;
  color: var(--color-text-light-60);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.contact-cta__tel-num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 32px;
  color: var(--color-text-light);
  letter-spacing: 0.02em;
}
.contact-cta__tel-num i {
  font-size: 22px;
  color: var(--color-accent);
}
.contact-cta__tel-hours {
  margin-top: 8px;
  font-size: 12px;
  color: var(--color-text-light-60);
}

/* ============================
   15. Footer
   ============================ */
.site-footer {
  background: var(--color-bg-darker);
  color: var(--color-text-light-80);
  padding: 80px 0 32px;
  font-size: 14px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 56px;
  gap: 24px;
}
.footer-tagline {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
}

.footer-main {
  display: grid;
  grid-template-columns: 30% 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-col__title {
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.footer-list { display: grid; gap: 12px; }
.footer-list a {
  font-size: 13px;
  color: var(--color-text-light-80);
}
.footer-list a:hover { color: var(--color-accent); }

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}
.footer-logo .logo-mark { width: 28px; height: 28px; }

.footer-company-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-light);
  margin-bottom: 12px;
}
.footer-address {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-light-80);
  margin-bottom: 12px;
}
.footer-tel {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}
.footer-tel:hover { color: var(--color-accent); }
.footer-hours {
  font-size: 12px;
  color: var(--color-text-light-60);
}

.footer-mid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 24px;
}

.footer-sns {
  display: flex;
  gap: 12px;
}
.footer-sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border-light);
  border-radius: 50%;
  color: var(--color-text-light);
  font-size: 14px;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.footer-sns a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.footer-lang {
  display: flex;
  gap: 16px;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.1em;
}
.footer-lang a {
  color: var(--color-text-light-60);
  padding: 4px 8px;
}
.footer-lang a.is-current,
.footer-lang a:hover {
  color: var(--color-text-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--color-text-light-60);
  letter-spacing: 0.05em;
}
.footer-policy {
  display: flex;
  gap: 24px;
}
.footer-policy a {
  font-size: 12px;
  color: var(--color-text-light-60);
}
.footer-policy a:hover { color: var(--color-text-light); }