/* ============================================================
   syscom-new.css — SYSCOM Website Stylesheet
   Design system based on Awwwards.com patterns
   ============================================================ */

/* ----------------------------------------------------------
   0. Custom Properties (Design Tokens)
   ---------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #222222;
  --color-body: #444444;
  --color-muted: #888888;
  --color-blue: #0086cc;
  --color-blue-hover: #006bb3;
  --color-white: #ffffff;
  --color-border: #e0e0e0;

  /* Backgrounds */
  --bg-primary: #e8f4fc;
  --bg-dark-gradient: linear-gradient(
    97.07deg,
    rgb(91, 189, 255) 0%,
    rgb(25, 89, 180) 100%
  );
  --bg-card: #ffffff;

  /* Typography */
  --font-base: "Inter Tight", "Noto Sans JP", sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.7;

  /* Spacing */
  --pad-inner: clamp(24px, 5vw, 52px);
  --section-pad: clamp(80px, 10vw, 160px);
  --gutter: 20px;
  /* Utility margin-top scale (reuse anywhere) */
  --space-mt-sm: clamp(0.5rem, 1.5vw, 1rem);
  --space-mt-md: clamp(1.25rem, 3vw, 2rem);
  --space-mt-lg: clamp(1.75rem, 4vw, 3rem);

  /* Layout */
  --inner-max: 1440px;
  --header-h: 120px;
  /* ヘッダー実高（JS が html に px で同期）。モバイルメニュー top / メガメニュー fixed の基準 */
  --site-header-h: 5.5rem;

  /* Radii */
  --rounded-sm: 4px;
  --rounded-normal: 8px;
  --rounded-large: 1rem;
  --rounded-full: 100px;

  /* Transitions */
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

.u-inter {
  font-weight: 800;
  letter-spacing: 0.06em;
}

.u-mt-0 {
  margin-top: 0;
}

.u-mt-sm {
  margin-top: var(--space-mt-sm);
}

.u-mt-md {
  margin-top: var(--space-mt-md);
}

.u-mt-lg {
  margin-top: var(--space-mt-lg);
}

body {
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

ul {
  text-align: left;
}

/* ----------------------------------------------------------
   2. Typography
   ---------------------------------------------------------- */
.c-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.75rem;
}

.c-heading {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.c-heading--white {
  color: var(--color-white);
}

.c-heading--md {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.c-heading--sm {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

.c-subtext {
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  color: var(--color-body);
  line-height: 1.8;
  max-width: 600px;
}

.c-subtext--full {
  max-width: none;
}

.c-subtext--white {
  color: rgba(255, 255, 255, 0.75);
}

/* ----------------------------------------------------------
   3. Layout Utilities
   ---------------------------------------------------------- */
.inner {
  width: 100%;
  max-width: var(--inner-max);
  margin-inline: auto;
  padding-inline: var(--pad-inner);
}

.section {
  padding-block: var(--section-pad);
}

/* サービス（Webタイプ含む）と「選ばれる理由」の間だけ余白を詰める */
section#service.section {
  padding-bottom: clamp(36px, 4.5vw, 72px);
}

section#about.section {
  padding-top: clamp(36px, 4.5vw, 72px);
}

.section--dark {
  background: var(--bg-dark-gradient);
  color: var(--color-white);
}

.section--darker {
  background: var(--bg-dark-gradient);
  color: var(--color-white);
}

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

.section-header {
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-header--no-mb {
  margin-bottom: 0;
}

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

.section-header--center .c-subtext {
  margin-inline: auto;
}

/* Scroll-driven fade-in — ふわっと（小さめの浮き＋なだらかな減速） */
.reveal {
  opacity: 0;
  transform: translate3d(0, 0.65rem, 0);
  transition:
    opacity 1.05s cubic-bezier(0.33, 1, 0.68, 1),
    transform 1.05s cubic-bezier(0.33, 1, 0.68, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

.reveal--stagger > * {
  opacity: 0;
  transform: translate3d(0, 0.65rem, 0);
  transition:
    opacity 0.95s cubic-bezier(0.33, 1, 0.68, 1),
    transform 0.95s cubic-bezier(0.33, 1, 0.68, 1);
}

.reveal--stagger.is-visible > *:nth-child(1) {
  transition-delay: 0.06s;
}
.reveal--stagger.is-visible > *:nth-child(2) {
  transition-delay: 0.14s;
}
.reveal--stagger.is-visible > *:nth-child(3) {
  transition-delay: 0.22s;
}
.reveal--stagger.is-visible > *:nth-child(4) {
  transition-delay: 0.3s;
}
.reveal--stagger.is-visible > *:nth-child(5) {
  transition-delay: 0.38s;
}
.reveal--stagger.is-visible > *:nth-child(6) {
  transition-delay: 0.46s;
}
.reveal--stagger.is-visible > *:nth-child(7) {
  transition-delay: 0.54s;
}
.reveal--stagger.is-visible > *:nth-child(8) {
  transition-delay: 0.62s;
}
.reveal--stagger.is-visible > *:nth-child(9) {
  transition-delay: 0.7s;
}
.reveal--stagger.is-visible > *:nth-child(10) {
  transition-delay: 0.78s;
}
.reveal--stagger.is-visible > *:nth-child(11) {
  transition-delay: 0.86s;
}
.reveal--stagger.is-visible > *:nth-child(12) {
  transition-delay: 0.94s;
}
.reveal--stagger.is-visible > *:nth-child(n + 13) {
  transition-delay: 1.02s;
}

.reveal--stagger.is-visible > * {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--stagger > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    will-change: auto !important;
  }
}

/* Dotted separator */
.dotted-sep {
  width: 100%;
  height: 1px;
  background-image: linear-gradient(
    to right,
    var(--color-border) 4px,
    transparent 4px
  );
  background-size: 8px 1px;
  background-repeat: repeat-x;
  margin-block: 0;
}

/* ----------------------------------------------------------
   4. Buttons
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 1.15rem 1.5rem;
  font-family: var(--font-base);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 2px solid transparent;
  border-radius: var(--rounded-full);
  cursor: pointer;
  transition:
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
  color: var(--color-blue);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn--primary:hover {
  background-color: var(--color-blue-hover);
  border-color: var(--color-blue-hover);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.btn--outline:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-blue);
  transition: gap var(--transition);
}

.btn-arrow::after {
  content: "→";
  display: inline-block;
  transition: transform var(--transition);
}

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

.btn-arrow--white {
  color: var(--color-white);
}

/* ----------------------------------------------------------
   5. Header（gohp.jp 準拠レイアウト）
   ---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.site-header .inner.site-header__inr {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 0.35rem 1.5rem;
  align-items: center;
  padding-block: 0.65rem 0.5rem;
  max-width: var(--inner-max);
  margin-inline: auto;
  padding-inline: var(--pad-inner);
}

.site-header__brand {
  grid-row: 1 / 3;
  align-self: center;
}

.site-logo {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  align-items: flex-start;
}

.site-logo img {
  height: 35px;
  width: auto;
}

.site-logo .logo-text {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--color-primary);
}

.site-logo__tagline {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--color-muted);
  line-height: 1.3;
  max-width: 14rem;
}

@media (max-width: 1100px) {
  .site-logo__tagline {
    display: none;
  }
}

.site-header__tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem 1.25rem;
}

.site-header__tools-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__tools-list a {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 1px solid transparent;
  transition:
    color var(--transition),
    border-color var(--transition);
}

.site-header__tools-list a:hover {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}

.site-header__search {
  position: relative;
}

.site-header__search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-primary);
  border-radius: var(--rounded-sm);
  transition: background var(--transition);
}

.site-header__search-btn:hover {
  background: var(--bg-primary);
}

.site-header__search-btn svg {
  width: 20px;
  height: 20px;
}

.site-header__search-panel {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 1100;
  width: min(320px, 90vw);
  padding: 0.75rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-normal);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.site-header__search.is-open .site-header__search-panel {
  display: block;
}

.site-header__search-panel form {
  display: flex;
  gap: 0.5rem;
}

.site-header__search-panel input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 0.5rem 0.65rem;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-sm);
}

.site-header__search-panel button[type="submit"] {
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-blue);
  border: none;
  border-radius: var(--rounded-sm);
  cursor: pointer;
}

.site-header__main {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 30px;
  flex-wrap: nowrap;
}

.gnavi {
  flex: 1;
  min-width: 0;
}

.gnavi > ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gnavi > ul > li > a {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 2px solid transparent;
  transition:
    color var(--transition),
    border-color var(--transition);
}

.gnavi > ul > li > a:hover,
.gnavi > ul > li:hover > a {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}

.gnavi > ul > li.has-mega {
  position: relative;
}

.gnavi > ul > li.has-mega::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -0.35rem;
  right: -0.35rem;
  height: 2.25rem;
}

.gnavi .mega-panel {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  top: var(--site-header-h);
  z-index: 1050;
  width: auto;
  min-width: 0;
  max-width: none;
  margin: 0;
  padding: 1.25rem var(--pad-inner) 1.5rem;
  background: var(--color-white);
  border: solid var(--color-border);
  border-width: 0 0 1px;
  border-radius: 0;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  font-size: 1rem;
}

.gnavi > ul > li.has-mega:hover .mega-panel,
.gnavi > ul > li.has-mega:focus-within .mega-panel {
  display: block;
}

.gnavi .mega-panel > * {
  max-width: var(--inner-max);
  margin-inline: auto;
}

.mega-panel__ttl {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}
.mega-panel__ttl span {
  font-size: 1.625rem;
}

.mega-panel__ttl .u-inter {
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-right: 0.35rem;
}

.mega-panel ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mega-panel li + li {
  margin-top: 0.35rem;
}

.mega-panel__list--4col {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem 1.25rem;
  align-items: start;
}

.mega-panel__list--4col li {
  margin: 0;
}

.mega-panel__list--4col li + li {
  margin-top: 0;
}

.mega-panel a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-body);
  line-height: 1.45;
  transition: color var(--transition);
}

.mega-panel a::before {
  content: "";
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background-color: var(--color-blue);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23ffffff' d='M8.59 16.59L13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.41z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 50% 50%;
  background-size: 1.05rem 1.05rem;
  transition: background-color var(--transition);
}

.mega-panel a:hover {
  color: var(--color-blue);
}

.mega-panel a:hover::before {
  background-color: var(--color-blue-hover);
}

.mega-panel__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem 1.5rem;
}

.mega-panel__grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mega-panel__col .mega-panel__subttl {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.mega-panel__col .mega-panel__subttl a {
  font-size: inherit;
  color: inherit;
}

.mega-panel__col .mega-panel__subttl a:hover {
  color: var(--color-blue);
}

/* Service：カテゴリ見出し（やや大）→ 直下に下層リンク4カラム。背景・枠なし */
.mega-panel--service .mega-panel__service-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mega-panel--service .mega-panel__service-section {
  margin: 0;
}

.mega-panel--service .mega-panel__service-heading {
  margin: 0 0 0.65rem;
  padding: 0;
}

.mega-panel--service .mega-panel__service-heading a {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.35;
}

.mega-panel--service .mega-panel__service-heading a::before {
  display: none;
}

.mega-panel--service .mega-panel__service-heading a:hover {
  color: var(--color-blue);
}

.header-ctas {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.header-ctas .btn {
  font-size: 0.875rem;
  padding: 0.55rem 1rem;
  white-space: nowrap;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition:
    transform var(--transition),
    opacity var(--transition);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--site-header-h);
  left: 0;
  right: 0;
  bottom: 0;
  /* ヘッダー直上から画面下端まで必ず塗りつぶす（実ヘッダー高と一致させ JS で --site-header-h を同期） */
  min-height: calc(100vh - var(--site-header-h));
  min-height: calc(100dvh - var(--site-header-h));
  background-color: var(--color-white);
  z-index: 999;
  overflow-y: auto;
  padding: 1rem var(--pad-inner) max(5rem, env(safe-area-inset-bottom, 0px));
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav__tel {
  text-align: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0.5rem;
}

.mobile-nav__tel-num {
  font-size: 1.125rem;
  font-weight: 800;
}

.mobile-nav__tel-num a {
  color: var(--color-primary);
}

.mobile-nav__tel-time {
  font-size: 0.6875rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
}

.mobile-nav__btn {
  display: block;
  margin-bottom: 1rem;
  text-align: center;
}

.mobile-nav__section {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__section summary {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 0.85rem 0;
  cursor: pointer;
  list-style: none;
}

.mobile-nav__section summary::-webkit-details-marker {
  display: none;
}

.mobile-nav__section[open] summary {
  color: var(--color-blue);
}

.mobile-nav__section ul {
  padding: 0 0 0.75rem 0.75rem;
}

.mobile-nav__section li {
  margin-bottom: 0.5rem;
}

.mobile-nav__section a {
  font-size: 0.875rem;
  color: var(--color-body);
}

.mobile-nav__section a:hover {
  color: var(--color-blue);
}

.mobile-nav__link {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
}

/* ----------------------------------------------------------
   6. Hero
   ---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #0a0c10;
  /* 黒オーバーレイの不透明度（0〜1）。写真・エフェクトの上、テキストの下 */
  --hero-overlay-opacity: 0.45;
}

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

/* MV: Ken Burns 周期・スライド表示時間・クロスフェード（ms）。JS は --hero-mv-period-ms のみ参照 */
.hero__slideshow {
  --hero-mv-kb-ms: 16000;
  --hero-mv-period-ms: 4800;
  --hero-mv-crossfade-ms: 1000;
}

.hero__slide {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0;
  z-index: 0;
  pointer-events: none;
  transition: opacity calc(var(--hero-mv-crossfade-ms) * 1ms)
    cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: opacity;
}

.hero__slide.is-active {
  opacity: 1;
  z-index: 2;
}

.hero__slide-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__slide-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: 50% 45%;
  will-change: transform;
  animation-duration: calc(var(--hero-mv-kb-ms) * 1ms);
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
  animation-play-state: paused;
}

.hero__slide.is-active .hero__slide-media img {
  animation-play-state: running;
}

.hero__slide:nth-child(1) .hero__slide-media img {
  animation-name: hero-mv-kb-a;
}

.hero__slide:nth-child(2) .hero__slide-media img {
  animation-name: hero-mv-kb-b;
  transform-origin: 55% 55%;
}

.hero__slide:nth-child(3) .hero__slide-media img {
  animation-name: hero-mv-kb-c;
  transform-origin: 48% 52%;
}

.hero__slide:nth-child(4) .hero__slide-media img {
  animation-name: hero-mv-kb-a;
  transform-origin: 52% 48%;
}

.hero__slide:nth-child(5) .hero__slide-media img {
  animation-name: hero-mv-kb-b;
  transform-origin: 45% 60%;
}

.hero__slide:nth-child(6) .hero__slide-media img {
  animation-name: hero-mv-kb-c;
  transform-origin: 58% 42%;
}

.hero__slide:nth-child(7) .hero__slide-media img {
  animation-name: hero-mv-kb-a;
  transform-origin: 40% 50%;
}

.hero__slide:nth-child(8) .hero__slide-media img {
  animation-name: hero-mv-kb-b;
  transform-origin: 62% 48%;
}

@keyframes hero-mv-kb-a {
  0% {
    transform: scale(1.04) translate(0%, 0%);
  }
  100% {
    transform: scale(1.22) translate(-4.5%, -3.2%);
  }
}

@keyframes hero-mv-kb-b {
  0% {
    transform: scale(1.2) translate(-3.2%, 1%);
  }
  100% {
    transform: scale(1.05) translate(4%, 3%);
  }
}

@keyframes hero-mv-kb-c {
  0% {
    transform: scale(1.06) translate(2%, -3%);
  }
  100% {
    transform: scale(1.24) translate(-2%, 2%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__slide {
    transition-duration: 0.01ms;
  }

  .hero__slide:not(.is-active) {
    opacity: 0;
  }

  .hero__slide-media img {
    animation: none;
    transform: none;
  }

  .hero__effect {
    display: none;
  }
}

/* MV 上のエフェクト動画（乗算で背景と合成） */
.hero__effect {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.3;
}

.hero__effect-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: rgb(38 49 60 / 45%);
}

.hero .inner {
  position: relative;
  z-index: 3;
  padding-block: clamp(80px, 12vw, 160px);
}

.hero__content {
  max-width: 720px;
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 1.25rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-blue);
  border-radius: var(--rounded-full);
}

.hero__title {
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero__title span {
  color: var(--color-blue);
  font-weight: bold;
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 560px;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.3);
  animation: scrollLine 1.5s ease-in-out infinite;
}

@keyframes scrollLine {
  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;
  }
}

/* ----------------------------------------------------------
   7. Stats
   ---------------------------------------------------------- */
.stats {
  background-color: var(--color-white);
  padding-block: clamp(48px, 6vw, 80px);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-large);
  overflow: hidden;
}

.stats__item {
  background-color: var(--color-white);
  padding: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2rem);
  text-align: center;
  transition: background-color var(--transition);
}

.stats__item:hover {
  background-color: var(--bg-primary);
}

.stats__num {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--color-blue);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stats__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

/* ----------------------------------------------------------
   8. Issues / Needs
   ---------------------------------------------------------- */
.issues__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
}

.issue-card {
  background-color: var(--bg-card);
  border-radius: var(--rounded-large);
  padding: 2rem 1.75rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.issue-card__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 134, 204, 0.08);
  border-radius: var(--rounded-normal);
  color: var(--color-blue);
}

.issue-card__icon .material-symbols-outlined {
  font-size: 2rem;
  line-height: 1;
  font-weight: 200;
  font-variation-settings:
    "FILL" 0,
    "wght" 200,
    "GRAD" 0,
    "opsz" 24;
}

.issue-card__body {
  flex: 1;
}

.issue-card__num {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-blue);
  margin-bottom: 0.25rem;
}

.issue-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-primary);
}

/* ----------------------------------------------------------
   9. Services
   ---------------------------------------------------------- */
.services__core {
  display: flex;
  gap: var(--gutter);
  margin-bottom: clamp(40px, 6vw, 64px);
  justify-content: center;
}

.services__core-item {
  flex: 1;
  max-width: 280px;
  text-align: center;
  padding: 2rem 1.5rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--rounded-large);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.services__core-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--color-blue);
}

.services__core-item:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.services__core-num {
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-blue);
  margin-bottom: 0.75rem;
}

.services__core-title {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-primary);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
}

.service-card {
  display: block;
  background-color: transparent;
  text-decoration: none;
  color: inherit;
}

/* 画像・文字とも opacity で薄くする。ホバーはリビールの長い opacity 遷移を使わず即時切り替え */
.services__grid.reveal--stagger.is-visible > a.service-card {
  transition:
    transform 0.95s cubic-bezier(0.33, 1, 0.68, 1),
    opacity 0.1s linear;
}

.services__grid.reveal--stagger.is-visible > a.service-card:hover {
  opacity: 0.6;
}

.service-card:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 4px;
  border-radius: var(--rounded-large);
}

.service-card__img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: transparent;
  border-radius: var(--rounded-large);
}

.service-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card__body {
  padding: 1.5rem;
}

.service-card__num {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-blue);
  margin-bottom: 0.5rem;
}

.service-card__title {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.service-card__desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ----------------------------------------------------------
   10. Web Types
   ---------------------------------------------------------- */
#webservice {
  margin-top: clamp(48px, 6vw, 96px);
  margin-bottom: clamp(28px, 4vw, 56px);
}

.web-types__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gutter);
}

.web-type-card {
  position: relative;
  border-radius: var(--rounded-large);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-dark-gradient);
}

/* figure-rollover pattern from Awwwards */
.web-type-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition:
    transform var(--transition-slow),
    opacity var(--transition-slow);
}

.web-type-card:hover .web-type-card__img {
  transform: scale(1.06);
  opacity: 0.5;
}

.web-type-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.1) 60%
  );
  transition: background var(--transition);
}

.web-type-card:hover .web-type-card__overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.4) 100%
  );
}

.web-type-card__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
}

.web-type-card__num {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-blue);
  margin-bottom: 0.5rem;
}

.web-type-card__title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.web-type-card__desc {
  font-size: clamp(0.6875rem, 1.35vw, 0.875rem);
  font-weight: 400;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 0.75rem;
  max-height: min(42vh, 11rem);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.web-type-card__desc-lead {
  display: block;
  font-weight: 700;
  margin-bottom: 0.35em;
  color: var(--color-white);
}

.web-type-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.web-type-card__btn::after {
  content: "→";
}

.web-type-card:hover .web-type-card__btn {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------------------------
   11. Works
   ---------------------------------------------------------- */
.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
  margin-bottom: 2.5rem;
}

/* figure-rollover component */
.figure-rollover {
  position: relative;
  border-radius: var(--rounded-large);
  overflow: hidden;
  background: var(--bg-dark-gradient);
  aspect-ratio: 4/3;
}

.figure-rollover__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition:
    transform var(--transition-slow),
    opacity var(--transition-slow);
}

.figure-rollover:hover .figure-rollover__img {
  transform: scale(1.06);
  opacity: 0.45;
}

.figure-rollover__info {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, transparent 60%);
}

.figure-rollover__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.figure-rollover:hover .figure-rollover__tags {
  opacity: 1;
  transform: translateY(0);
}

.figure-rollover__tag {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--rounded-full);
  padding: 2px 8px;
}

.figure-rollover__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.35;
}

/* Center button on hover */
.figure-rollover__cta {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.85);
  opacity: 0;
  transition:
    opacity var(--transition),
    transform var(--transition);
  pointer-events: none;
}

.figure-rollover:hover .figure-rollover__cta {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.works__more {
  text-align: center;
}

/* ----------------------------------------------------------
   12. Concept
   ---------------------------------------------------------- */
.concept {
  background: var(--bg-dark-gradient);
  padding-block: var(--section-pad);
  position: relative;
  overflow: hidden;
}

.concept::before {
  content: "CONCEPT";
  position: absolute;
  top: -0.1em;
  right: -0.05em;
  font-size: clamp(6rem, 15vw, 14rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}

.concept .section-header .c-heading + p {
  color: var(--color-white);
}

.section-header .c-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.section-header .c-label::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e8f4fc;
  border: 2px solid #0086cc;
  flex-shrink: 0;
}

.concept__messages {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.concept__stat {
  padding: clamp(1rem, 2vw, 0rem);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.concept__stat-circle {
  width: min(100%, 288px);
  aspect-ratio: 1;
  margin-inline: auto;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.22);
  background:
    radial-gradient(
      circle at 28% 22%,
      rgba(255, 255, 255, 0.14) 0%,
      transparent 52%
    ),
    rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(0.85rem, 2.2vw, 1.35rem);
  gap: 0.45rem;
}

.concept__stat-cat {
  font-size: clamp(0.875rem, 1.9vw, 1.0625rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.35;
  max-width: 100%;
}

.concept__stat-num {
  font-size: clamp(2.875rem, 7vw, 4.375rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-white);
  line-height: 1;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.18);
}

.concept__stat-sub {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.35;
}

/* ----------------------------------------------------------
   13. Strengths
   ---------------------------------------------------------- */
.strengths__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.strengths__img-wrap {
  position: relative;
  border-radius: var(--rounded-large);
  overflow: hidden;
  aspect-ratio: 4/5;
}

.strengths__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.strengths__img-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background-color: var(--color-blue);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--rounded-normal);
}

.strengths__img-badge strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
}

.strengths__img-badge span {
  font-size: 0.75rem;
  font-weight: 600;
}

.strengths__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.strength-item {
  display: flex;
  align-items: flex-start;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  padding: clamp(1.25rem, 3vw, 1.75rem) 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition);
}

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

.strength-item__num {
  flex-shrink: 0;
  min-width: 2rem;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding-top: 0.125rem;
  background-color: transparent;
  color: var(--color-primary);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.5;
  color: var(--color-blue);
}

.strength-item__details {
  flex: 1;
  min-width: 0;
}

.strength-item__details > .strength-item__desc {
  padding-top: 0.75rem;
  animation: strength-desc-open 0.25s ease-out;
}

@keyframes strength-desc-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .strength-item__details > .strength-item__desc {
    animation: none;
  }

  .strength-item__toggle {
    transition: none;
  }
}

.strength-item__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.strength-item__summary::-webkit-details-marker {
  display: none;
}

.strength-item__summary:focus {
  outline: none;
}

.strength-item__summary:focus-visible .strength-item__lead {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.strength-item__lead {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.65;
  text-align: left;
}

.strength-item__toggle {
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.45em;
  border: solid var(--color-blue);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  transition:
    transform var(--transition),
    border-color var(--transition);
}

.strength-item__details[open] .strength-item__toggle {
  margin-top: 0.65em;
  transform: rotate(225deg);
}

.strength-item__details:not([open]):hover .strength-item__toggle {
  border-color: var(--color-blue-hover);
}

.strength-item__desc {
  margin: 0;
  font-size: clamp(0.875rem, 1.4vw, 0.9375rem);
  font-weight: 400;
  color: var(--color-body);
  line-height: 1.75;
}

@media (max-width: 640px) {
  .strength-item__num {
    min-width: 1.75rem;
    font-size: 1.525rem;
  }

  .strength-item__toggle {
    margin-top: 0.4em;
  }

  .strength-item__details[open] .strength-item__toggle {
    margin-top: 0.55em;
  }
}

/* ----------------------------------------------------------
   14. News
   ---------------------------------------------------------- */
.news__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 2rem;
}

.news-item {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 1.25rem;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  transition: background-color var(--transition);
}

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

.news-item:hover .news-item__title {
  color: var(--color-blue);
}

.news-item__date {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.news-item__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: var(--rounded-full);
  white-space: nowrap;
}

.news-item__tag--blog {
  background-color: rgba(0, 134, 204, 0.1);
  color: var(--color-blue);
}

.news-item__tag--info {
  background-color: rgba(34, 34, 34, 0.07);
  color: var(--color-primary);
}

.news-item__title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition);
  line-height: 1.5;
}

/* NEWS: フル幅ブルー帯（index など単一ニュース行用） */
section#news.section--news-strip {
  padding-block: 15px;
  background-color: var(--color-blue);
  color: var(--color-white);
}

section#news.section--news-strip .news__list {
  margin-bottom: 0;
}

section#news.section--news-strip .news-item,
section#news.section--news-strip .news-item:first-child {
  padding-block: 0;
  border: none;
}

section#news.section--news-strip .news-item__date,
section#news.section--news-strip .news-item__title {
  color: var(--color-white);
}

section#news.section--news-strip .news-item:hover .news-item__title {
  color: rgba(255, 255, 255, 0.88);
}

section#news.section--news-strip .news-item__tag--blog {
  background-color: rgba(255, 255, 255, 0.22);
  color: var(--color-white);
}

section#news.section--news-strip .news-item__tag--info {
  background-color: rgba(255, 255, 255, 0.18);
  color: var(--color-white);
}

/* ----------------------------------------------------------
   15. Blog
   ---------------------------------------------------------- */
/* Blog carousel */
.blog-carousel {
  position: relative;
  margin-bottom: 2.5rem;
}

.blog-carousel__viewport {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.blog-carousel__viewport::-webkit-scrollbar {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .blog-carousel__viewport {
    scroll-behavior: auto;
  }
}

.blog-carousel__track {
  display: flex;
  gap: var(--gutter);
  width: 100%;
}

.blog-carousel__slide {
  flex: 0 0 calc((100% - 2 * var(--gutter)) / 3);
  min-width: 0;
  scroll-snap-align: start;
}

@media (max-width: 1024px) {
  .blog-carousel__slide {
    flex: 0 0 calc(100% - 3rem);
  }
}

@media (max-width: 640px) {
  .blog-carousel__slide {
    flex: 0 0 100%;
  }
}

.blog-carousel__controls {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}

.blog-carousel__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--section-pad);
  border-radius: var(--rounded-full);
  background: var(--color-white);
  color: var(--color-primary);
  cursor: pointer;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    opacity var(--transition);
}

.blog-carousel__btn:hover:not(:disabled) {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.blog-carousel__btn:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

.blog-carousel__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.blog-carousel__controls.is-hidden {
  display: none;
}

.blog-card {
  background-color: var(--color-white);
  border-radius: var(--rounded-large);
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition:
    box-shadow var(--transition),
    transform var(--transition);
}

.blog-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
}

.blog-card__img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.blog-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__img img {
  transform: scale(1.05);
}

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

.blog-card__cat {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.blog-card__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.blog-card__date {
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* ----------------------------------------------------------
   16. FAQ
   ---------------------------------------------------------- */
#faq-heading .faq-heading__lead {
  display: block;
  font-size: 1.25rem;
  color: var(--color-blue);
  font-weight: 700;
  margin-bottom: 1.125rem;
  letter-spacing: normal;
}

.faq__groups {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.faq__group-title {
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-blue);
  display: inline-block;
}

.faq__items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

details.faq-item {
  border-bottom: 1px solid var(--color-border);
}

details.faq-item:first-of-type {
  border-top: 1px solid var(--color-border);
}

summary.faq-item__q {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: color var(--transition);
  user-select: none;
}

summary.faq-item__q::-webkit-details-marker {
  display: none;
}

summary.faq-item__q::before {
  content: "Q";
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: 1.8125rem;
  font-weight: 800;
  border-radius: var(--rounded-sm);
}

summary.faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--color-muted);
  transition:
    transform var(--transition),
    color var(--transition);
  line-height: 1;
}

details.faq-item[open] summary.faq-item__q::after {
  content: "−";
  color: var(--color-blue);
}

details.faq-item[open] summary.faq-item__q {
  color: var(--color-blue);
}

.faq-item__a {
  padding: 0 0 1.5rem 3rem;
  font-size: 0.9375rem;
  color: var(--color-body);
  line-height: 1.75;
}

/* ----------------------------------------------------------
   17. CTA (Recommendation Cards)
   ---------------------------------------------------------- */
#cta-heading .cta-heading__lead {
  display: block;
  font-size: 1.25rem;
  color: var(--color-white);
  font-weight: 700;
  margin-bottom: 1.125rem;
  letter-spacing: normal;
}

.cta-section {
  background: var(--bg-dark-gradient);
  padding-block: var(--section-pad);
}

.cta-section__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gutter);
}

.cta-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--rounded-large);
  padding: clamp(2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition:
    background-color var(--transition),
    border-color var(--transition);
}

.cta-card:hover {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: rgba(0, 134, 204, 0.4);
}

.cta-card--accent {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
}

.cta-card--accent:hover {
  background-color: var(--color-blue-hover);
  border-color: var(--color-blue-hover);
}

.cta-card__label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.cta-card--accent .cta-card__label {
  color: rgba(255, 255, 255, 0.8);
}

.cta-card__title {
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.3;
}

.cta-card__desc {
  font-size: 0.9375rem;
  color: var(--color-white);
  line-height: 1.7;
}

.cta-card__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: auto;
}

/* ----------------------------------------------------------
   18. Footer（gohp.jp 準拠）
   ---------------------------------------------------------- */
.site-footer {
  background-color: #2765b8;
  padding-top: 0;
  padding-bottom: 0;
  color: var(--color-white);
}

.gohp-footer__info {
  padding: clamp(48px, 6vw, 72px) var(--pad-inner);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.gohp-footer__info .inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  max-width: var(--inner-max);
  margin-inline: auto;
}

.gohp-footer__info-desc {
  font-size: 0.75rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.gohp-footer__info-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.gohp-footer__info-logo img {
  height: 35px;
  width: auto;
  filter: brightness(0) invert(1);
}

.gohp-footer__info-logo span {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-white);
}

.gohp-footer__info address {
  margin-top: 1.25rem; /* ~20px */
  font-size: 0.85rem;
  line-height: 1.8;
  font-style: normal;
  color: var(--color-white);
}

.gohp-footer__info address a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.gohp-footer__info address a:hover {
  color: var(--color-white);
}

.gohp-footer__info-aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gohp-footer__docbnr {
  width: 100%;
  margin-inline: auto 0;
}

.gohp-footer__docbnr-link {
  position: relative;
  display: block;
  line-height: 0;
}

.gohp-footer__docbnr-link:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9);
  outline-offset: 3px;
}

.gohp-footer__docbnr-img {
  width: 100%;
  height: auto;
  display: block;
}

.gohp-footer__docbnr-label {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  padding-left: 0.75rem;
  font-size: 1.25rem; /* 20px at 16px root */
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  pointer-events: none;
}

.gohp-footer__sns {
  display: flex;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gohp-footer__sns a {
  display: block;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.gohp-footer__sns a:hover {
  opacity: 1;
}

.gohp-footer__sns img {
  height: 30px;
  width: auto;
}

.gohp-footer__lead {
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--color-white);
}

.gohp-footer__nav-wrap {
  padding: clamp(40px, 5vw, 56px) var(--pad-inner) clamp(32px, 4vw, 48px);
}

.gohp-footer__nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  max-width: var(--inner-max);
  margin-inline: auto;
}

.gohp-footer__nav h3 {
  font-size: 0.875rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.gohp-footer__nav h3 a {
  color: var(--color-white);
  transition: color var(--transition);
}

.gohp-footer__nav h3 a:hover {
  color: var(--color-blue);
}

.gohp-footer__nav ul {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.gohp-footer__nav li {
  margin-bottom: 0.45rem;
  font-weight: 700;
}

.gohp-footer__nav a {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.gohp-footer__nav a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.gohp-footer__btm {
  padding: 1.25rem var(--pad-inner);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.gohp-footer__btm .inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  max-width: var(--inner-max);
  margin-inline: auto;
}

.gohp-footer__btm small {
  font-size: 0.6875rem;
  color: var(--color-white);
}

.gohp-footer__btm ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gohp-footer__btm a {
  font-size: 0.6875rem;
  color: var(--color-white);
  transition: color var(--transition);
}

.gohp-footer__btm a:hover {
  color: var(--color-white);
}

.gohp-footer__sticky {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(0, 0, 0, 0.2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.gohp-footer__sticky a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-white);
  background: var(--color-blue);
  transition: background var(--transition);
}

.gohp-footer__sticky a:last-child {
  background: var(--color-primary);
}

.gohp-footer__sticky a:hover {
  filter: brightness(1.05);
}

/* ----------------------------------------------------------
   19. Responsive
   ---------------------------------------------------------- */

/* Tablet: ≤ 1024px */
@media (max-width: 1024px) {
  .site-header .inner.site-header__inr {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    align-items: center;
  }

  .site-header__brand {
    grid-column: 1;
    grid-row: 1;
  }

  .site-header__main {
    grid-column: 2;
    grid-row: 1;
    justify-content: flex-end;
  }

  .site-header__tools {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
  }

  .gnavi {
    display: none;
  }

  .header-ctas {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

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

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

  .services__core {
    flex-wrap: wrap;
  }

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

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

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

  .strengths__img-wrap {
    aspect-ratio: 16/9;
  }

  .concept__messages {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gohp-footer__nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Mobile: ≤ 640px */
@media (max-width: 640px) {
  :root {
    --section-pad: clamp(60px, 10vw, 80px);
  }

  .hero__slide-media img {
    object-fit: cover;
    object-position: 70%;
  }

  .hero__title {
    font-size: clamp(2rem, 9vw, 2.7rem);
  }

  .c-heading {
    font-size: clamp(1.8rem, 3.6vw, 3.125rem);
  }

  .c-heading--md {
    font-size: clamp(1.35rem, 2.7vw, 2.25rem);
  }

  .c-heading--sm {
    font-size: clamp(1.125rem, 2.25vw, 1.5625rem);
  }

  #faq-heading .faq-heading__lead {
    font-size: 1.125rem;
  }

  #faq .section-header {
    margin-bottom: 0;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

  .issue-card {
    padding: 1.4rem 1.75rem;
  }

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

  .web-types__grid {
    grid-template-columns: 1fr;
  }

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

  .concept__stat {
    padding: clamp(0.2rem, 2vw, 0rem);
  }

  .cta-section__grid {
    grid-template-columns: 1fr;
  }

  .gohp-footer__info .inner {
    grid-template-columns: 1fr;
  }

  .gohp-footer__nav {
    grid-template-columns: 1fr;
  }

  .gohp-footer__btm .inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .gohp-footer__sticky {
    display: grid;
  }

  body {
    padding-bottom: 52px;
  }

  .news-item {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
  }

  .news-item__date {
    grid-column: 1;
    grid-row: 1;
  }

  .news-item__tag {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .news-item__title {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

.l-fixedbtn__contact-item a {
  font-size: 0.75rem;
  font-weight: 400;
}