/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
  --color-primary: #0055A4;
  --color-primary-dark: #003D7A;
  --color-primary-light: #E8F0FE;
  --color-green: #007A5E;
  --color-green-light: #00B386;
  --color-light-blue: #4A6CF7;
  --color-light-blue-light: #7B93FF;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F9FC;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;
  --color-footer: #0D0D1A;
  --font-primary: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --font-logo: 'Inter', 'Helvetica Neue', sans-serif;
  --header-height: 80px;
  --container-max: 1200px;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.25s ease;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
address { font-style: normal; }

/* ========================================
   Utilities
   ======================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.u-pc { display: inline; }

/* ========================================
   Animations — Scroll Reveal
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

.fade-in-up {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.fade-in-up.is-visible { opacity: 1; transform: translateY(0); }

.fade-in-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.fade-in-left.is-visible { opacity: 1; transform: translateX(0); }

.fade-in-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.fade-in-right.is-visible { opacity: 1; transform: translateX(0); }

/* テキスト1文字ずつスライドアップ */
.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s ease, transform 0.5s var(--ease-out-expo);
}
.split-text.is-visible .char {
  opacity: 1;
  transform: translateY(0);
}

/* ヒーロー用テキスト表示 */
.reveal-line {
  display: block;
  overflow: hidden;
}
.reveal-line > span {
  display: block;
  transform: translateY(110%);
  transition: transform 0.9s var(--ease-out-expo);
}
.reveal-line.is-visible > span {
  transform: translateY(0);
}

.reveal-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s var(--ease-out-expo);
}
.reveal-text.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in-up, .fade-in-left, .fade-in-right, .reveal-text {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .split-text .char { opacity: 1; transform: none; transition: none; }
  .reveal-line > span { transform: none; transition: none; }
}

/* ========================================
   Button
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  border-radius: 60px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn--outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 85, 164, 0.25);
}

.btn--white {
  border: 2px solid rgba(255,255,255,0.8);
  color: #fff;
  background: transparent;
  backdrop-filter: blur(4px);
}
.btn--white:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
}

.btn--glow {
  background: linear-gradient(135deg, var(--color-primary), var(--color-light-blue));
  color: #fff;
  border: none;
  padding: 18px 48px;
  font-size: 16px;
}
.btn--glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--color-primary), var(--color-light-blue));
  z-index: -1;
  filter: blur(16px);
  opacity: 0;
  transition: opacity var(--transition);
}
.btn--glow:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(74, 108, 247, 0.35);
}
.btn--glow:hover::before { opacity: 0.6; }

.arrow {
  transition: transform var(--transition);
}
.btn:hover .arrow { transform: translateX(4px); }

.btn__arrow-wrap {
  display: flex;
  transition: transform var(--transition);
}
.btn:hover .btn__arrow-wrap { transform: translateX(4px); }

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
}

.header__logo {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-logo);
  z-index: 1001;
}

.header__logo-main {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  transition: color var(--transition);
}

.header__logo-sub {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  transition: color var(--transition);
}

.header:not(.scrolled) .header__logo-main,
.header:not(.scrolled) .header__logo-sub {
  color: #fff;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav-link {
  font-family: var(--font-logo);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

.header.scrolled .header__nav-link {
  color: var(--color-text);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s var(--ease-out-expo), left 0.3s var(--ease-out-expo);
}

.header__nav-link:hover::after {
  width: 100%;
  left: 0;
}

/* CTA button in nav */
.header__nav-link--cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 60px;
  letter-spacing: 0.08em;
}
.header__nav-link--cta::after { display: none; }
.header__nav-link--cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 85, 164, 0.3);
}

/* Burger */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 0;
}

.header__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #fff;
  transition: all 0.35s var(--ease-out-expo);
  transform-origin: center;
}

.header.scrolled .header__burger span { background-color: var(--color-text); }

body.menu-open .header__burger span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}
body.menu-open .header__burger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
body.menu-open .header__burger span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}
body.menu-open .header__burger span { background-color: #fff; }
body.menu-open .header__logo-main,
body.menu-open .header__logo-sub { color: #fff; }

/* ========================================
   Hero
   ======================================== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #000B1E 0%, #001A3A 30%, #003D7A 60%, #0055A4 100%);
  overflow: hidden;
  text-align: center;
  color: #fff;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(74, 108, 247, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 85, 164, 0.2) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(0, 61, 122, 0.1) 0%, transparent 50%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  padding: 0 24px;
  max-width: 900px;
}

.hero__label {
  font-family: var(--font-logo);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.25em;
  margin-bottom: 28px;
  color: #fff;
}

.hero__title {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 32px;
  letter-spacing: 0.04em;
}

.hero__text {
  font-size: 16px;
  line-height: 2;
  color: #fff;
}

.hero__cta {
  margin-top: 48px;
}

.hero__scroll {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-logo);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.4);
  z-index: 3;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.15);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent, #fff);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  50% { top: 0; }
  100% { top: 100%; }
}

/* ヒーロー下部の斜めカット */
.hero__shape {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  z-index: 4;
  line-height: 0;
}

.hero__shape svg {
  width: 100%;
  height: auto;
}

/* ========================================
   Section Common
   ======================================== */
.section {
  padding: 140px 0;
  position: relative;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section__label {
  text-align: center;
  margin-bottom: 72px;
}

.section__label-en {
  display: block;
  font-family: var(--font-logo);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section__label-ja {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.04em;
}

/* ========================================
   About
   ======================================== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about__quote {
  border-left: 4px solid var(--color-primary);
  padding-left: 28px;
  margin-bottom: 32px;
}

.about__quote-text {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.about__desc {
  font-size: 15px;
  color: var(--color-text);
  line-height: 2.1;
}

/* 数字カウンター */
.about__numbers {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.about__number-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about__number {
  font-family: var(--font-logo);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.about__number-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

/* Values */
.about__values {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about__value-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 28px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.about__value-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: transparent;
  transform: translateX(8px);
}

.about__value-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  color: var(--color-primary);
}
.about__value-icon svg { width: 100%; height: 100%; }

.about__value-title {
  font-family: var(--font-logo);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

/* ========================================
   Service
   ======================================== */
.service__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service__card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 0.5s var(--ease-out-expo);
  position: relative;
}

.service__card:hover {
  transform: translateY(-12px);
  box-shadow: var(--shadow-hover);
}

/* カードビジュアル上部 */
.service__card-visual {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.service__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-expo);
}

.service__card:hover .service__card-img {
  transform: scale(1.08);
}

.service__card-body {
  padding: 32px 28px;
}

.service__card-dept {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.service__card-logo {
  margin-bottom: 20px;
}

.service__card-logo img {
  height: 40px;
  width: auto;
}

.service__card-logos-dual {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 32px;
  margin-bottom: 20px;
}

.service__card-logos-dual img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

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

.service__card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  position: relative;
}

.service__card-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width 0.3s var(--ease-out-expo);
}

.service__card-link:hover::after { width: calc(100% - 28px); }

.service__card-link-arrow {
  display: flex;
  transition: transform var(--transition);
}

.service__card-link:hover .service__card-link-arrow {
  transform: translateX(4px);
}

/* ========================================
   Parallax Banner + Marquee
   ======================================== */
.parallax-banner {
  position: relative;
  height: 280px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parallax-banner__bg {
  position: absolute;
  inset: -40px;
  background-size: cover;
  background-position: center;
  filter: brightness(0.6) saturate(1.3);
  transition: transform 0.1s linear;
}

.parallax-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 27, 58, 0.3), rgba(0, 85, 164, 0.2));
}

.parallax-banner__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.marquee {
  position: relative;
  z-index: 2;
  padding: 48px 0;
  overflow: hidden;
  white-space: nowrap;
  width: 100%;
}

.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 0;
  animation: marqueeScroll 25s linear infinite;
}

.marquee__item {
  font-family: var(--font-logo);
  font-size: 120px;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.12);
  letter-spacing: 0.25em;
  padding: 0 60px;
  user-select: none;
  text-transform: uppercase;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================
   Stagger & Scale Animations
   ======================================== */
.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.scale-in.is-visible { opacity: 1; transform: scale(1); }

/* カードチルトエフェクト */
.service__card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* グロー効果 — サービスカード */
.service__card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, transparent 40%, rgba(0, 85, 164, 0.15) 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: -1;
}
.service__card:hover::before { opacity: 1; }

/* ロゴ画像ホバー */
.service__card-logo img,
.service__card-logos-dual img {
  transition: transform 0.4s var(--ease-out-expo), filter 0.4s ease;
}
.service__card:hover .service__card-logo img,
.service__card:hover .service__card-logos-dual img {
  transform: scale(1.05);
}


/* ABOUTバリューカード — 連番ナンバー */
.about__value-card {
  counter-increment: value-counter;
}
.about__value-card::before {
  content: '0' counter(value-counter);
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--font-logo);
  font-size: 48px;
  font-weight: 800;
  color: rgba(0, 85, 164, 0.1);
  line-height: 1;
  pointer-events: none;
}

.about__values {
  counter-reset: value-counter;
}

.about__value-card {
  position: relative;
  overflow: hidden;
}

/* ========================================
   News
   ======================================== */
.news {
  padding-top: 100px;
  padding-bottom: 100px;
}

.news__list {
  max-width: 900px;
  margin: 0 auto 48px;
}

.news__item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 20px;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
  cursor: pointer;
  border-radius: 4px;
}

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

.news__item:hover {
  background-color: var(--color-bg-alt);
  padding-left: 28px;
  border-color: transparent;
  box-shadow: var(--shadow);
}

.news__date {
  font-family: var(--font-logo);
  font-size: 14px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.news__badge {
  display: inline-block;
  padding: 3px 14px;
  border-radius: 30px;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.news__badge--info {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.news__badge--press {
  background: #E6F7F0;
  color: var(--color-green);
}
.news__badge--media {
  background: #F0EDFF;
  color: var(--color-light-blue);
}

.news__title {
  font-size: 15px;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.news__item:hover .news__title { color: var(--color-primary); }

.news__more { text-align: center; }

/* ========================================
   Company
   ======================================== */
.company__wrapper {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.company__table {
  width: 100%;
}

.company__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

.company__row:last-child { border-bottom: none; }

.company__row:hover {
  background-color: var(--color-bg-alt);
}

.company__label {
  padding: 24px 32px;
  font-weight: 600;
  font-size: 14px;
  background: var(--color-bg-alt);
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.company__value {
  padding: 24px 32px;
  font-size: 15px;
  color: var(--color-text);
}

/* ========================================
   Contact
   ======================================== */
.contact {
  position: relative;
  background: url('../assets/images/bg.webp') center / cover no-repeat;
  padding: 160px 0;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 15, 40, 0.55);
  z-index: 0;
}

.contact__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.contact__inner {
  position: relative;
  text-align: center;
  color: #fff;
  z-index: 3;
}

.contact__label {
  font-family: var(--font-logo);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3em;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.5);
}

.contact__title {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.contact__text {
  font-size: 16px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 48px;
}

/* Contact Form */
.contact__form {
  max-width: 720px;
  margin: 0 auto;
  text-align: left;
  background: rgba(0, 15, 40, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 48px 40px;
}

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

.contact__form-group {
  margin-bottom: 20px;
}

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

.contact__form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.contact__form-required {
  font-size: 11px;
  color: #FF6B6B;
  margin-left: 4px;
}

.contact__form-input,
.contact__form-select,
.contact__form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: #fff;
  font-family: var(--font-primary);
  font-size: 15px;
  transition: all var(--transition-fast);
  outline: none;
}

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

.contact__form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.5)' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.contact__form-select option {
  background: var(--color-primary-dark);
  color: #fff;
}

.contact__form-input:focus,
.contact__form-select:focus,
.contact__form-textarea:focus {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

.contact__form-textarea {
  resize: vertical;
  min-height: 140px;
}

.contact__form-submit {
  text-align: center;
  margin-top: 36px;
}

.contact__form-submit .btn {
  min-width: 200px;
  justify-content: center;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-footer);
  color: rgba(255, 255, 255, 0.6);
  padding-top: 72px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer__logo {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-logo);
  margin-bottom: 24px;
}

.footer__logo-main {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.footer__logo-sub {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.footer__address {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.4);
}

.footer__nav-title {
  font-family: var(--font-logo);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer__nav-list a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer__nav-list a:hover {
  color: #fff;
  transform: translateX(4px);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
}

.footer__copy {
  font-family: var(--font-logo);
  font-size: 12px;
  text-align: center;
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.05em;
}

/* ========================================
   Responsive — Tablet
   ======================================== */
@media (max-width: 1023px) {
  .service__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero__title { font-size: 40px; }
  .section__label-ja { font-size: 30px; }
  .section { padding: 100px 0; }
  .contact { padding: 120px 0; }
}

/* ========================================
   Responsive — SP
   ======================================== */
@media (max-width: 767px) {
  :root {
    --header-height: 64px;
  }

  .u-pc { display: none; }

  /* Header SP */
  .header__burger { display: flex; }

  .header__nav {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, #001A3A, var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    z-index: 1000;
  }

  body.menu-open .header__nav {
    opacity: 1;
    visibility: visible;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 28px;
    text-align: center;
  }

  .header__nav-link {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.15em;
  }

  .header.scrolled .header__nav-link { color: rgba(255, 255, 255, 0.9); }

  .header__nav-link--cta {
    margin-top: 12px;
    padding: 14px 40px;
    font-size: 16px;
  }

  /* Hero SP */
  .hero { min-height: 100svh; }
  .hero__label { font-size: 12px; letter-spacing: 0.15em; }
  .hero__title { font-size: 28px; }
  .hero__text { font-size: 14px; }
  .hero__cta { margin-top: 36px; }
  .hero__scroll { bottom: 80px; }

  /* Section SP */
  .section { padding: 80px 0; }
  .section__label { margin-bottom: 48px; }
  .section__label-ja { font-size: 24px; }
  .section__label-en { font-size: 12px; }

  /* About SP */
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .about__quote-text { font-size: 24px; }
  .about__numbers { gap: 24px; flex-wrap: wrap; }
  .about__number { font-size: 36px; }

  /* Service SP */
  .service__grid { grid-template-columns: 1fr; gap: 24px; }
  .service__card-visual { height: 160px; }
  .service__card-body { padding: 24px 20px; }

  /* Marquee SP */
  .marquee__item { font-size: 48px; }
  .parallax-banner { height: 180px; }


  /* News SP */
  .news { padding-top: 64px; padding-bottom: 64px; }
  .news__item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 16px 12px;
  }
  .news__date { font-size: 13px; }
  .news__title { width: 100%; font-size: 14px; }
  .news__item:hover { padding-left: 16px; }

  /* Company SP */
  .company__row { grid-template-columns: 1fr; }
  .company__label {
    padding: 16px 20px 6px;
    font-size: 12px;
    letter-spacing: 0.1em;
  }
  .company__value {
    padding: 4px 20px 16px;
    font-size: 14px;
  }

  /* Contact SP */
  .contact { padding: 100px 0; }
  .contact__title { font-size: 28px; }
  .contact__text { font-size: 15px; }
  .contact__form { padding: 32px 20px; }
  .contact__form-row { grid-template-columns: 1fr; }

  /* Footer SP */
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .header__logo-main { font-size: 24px; }
}