/* STUDIO55 — Construction DX × BIM stylesheet */

/* ----- 1. Tokens ----- */
:root {
  /* Color */
  --c-bg: #FFFFFF;
  --c-surface: #F5F7FA;
  --c-surface-2: #EEF2F7;
  --c-ink: #0B1420;
  --c-ink-2: #3B475A;
  --c-ink-3: #7A8699;
  --c-line: #E2E8F0;
  --c-line-strong: #CBD5E0;
  --c-brand: #0870CA;
  --c-brand-deep: #0A2B8C;
  --c-brand-soft: #E6EEFF;
  --c-accent-cyan: #4DD0FF;
  --c-hero-bg: #040B1F;
  --c-hero-bg-2: #0A1A3A;
  --c-error: #D9484F;
  --c-mark: #FFF59E;

  /* Typography */
  --font-jp: "Quicksand", "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  --font-en: "Quicksand", "Inter", "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Quicksand", "Inter Tight", "Inter", "Noto Sans JP", system-ui, sans-serif;
  --fs-display-l: clamp(1.875rem, 3.5vw, 3rem);
  --fs-body-l: 1.0625rem;
  --fs-body: 1rem;
  --fs-body-s: 0.9375rem;
  --fs-meta: 0.8125rem;

  /* Spacing */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;
  --s-10: 128px;

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(20px, 4vw, 48px);

  /* Shape */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-pill: 999px;

  /* Elevation */
  --sh-1: 0 2px 8px rgba(11, 20, 32, 0.04);
  --sh-2: 0 8px 32px rgba(11, 20, 32, 0.08);
  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-snap: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-base: 320ms;
  --dur-slow: 640ms;

  /* Z-index */
  --z-banner: 40;
  --z-header: 50;
}

/* ----- 2. Reset + base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--c-ink);
  background: var(--c-bg);
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:lang(en) body,
.lang-en {
  font-family: var(--font-en);
  letter-spacing: 0;
}

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

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

a:hover {
  color: var(--c-brand);
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: none;
}

input,
select,
textarea {
  font: inherit;
  color: inherit;
}

mark {
  background: var(--c-mark);
  color: inherit;
  padding: 0 0.15em;
  border-radius: 2px;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.01em;
}

:lang(en) h1,
:lang(en) h2,
:lang(en) h3 {
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 1em;
}

/* Numerals look better with tabular */
.num,
.stat-num {
  font-variant-numeric: tabular-nums;
}

/* ----- 3. Layout primitives ----- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.container.container--wide {
  /* Wider variant for the DX chart. */
  max-width: 1440px;
}

.section {
  padding-top: clamp(64px, 9vw, 112px);
  padding-bottom: clamp(64px, 9vw, 112px);
}

.section--surface {
  background: var(--c-bg);
}

.eyebrow {
  font-family: var(--font-en);
  
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-brand);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  /* Slightly thicker dash for more visual presence at the larger eyebrow size. */
  height: 2px;
  background: var(--c-brand);
}

.section-title {
  font-size: var(--fs-display-l);
  margin: 12px 0 16px;
}

.section-lead {
  font-size: var(--fs-body-l);
  color: var(--c-ink-2);
  max-width: 64ch;
}

/* ----- 4. Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--r-pill);
  font-weight: 600;
  font-size: var(--fs-body-s);
  letter-spacing: 0.02em;
  transition: all var(--dur-fast) var(--ease-snap);
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--c-brand);
  color: #fff;
  box-shadow: 0 4px 16px rgba(8, 112, 202, 0.25);
}

.btn-primary:hover {
  background: var(--c-brand-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(8, 112, 202, 0.35);
}

/* Outline = white surface + blue text + blue border. Same on light or dark. */
.btn-outline {
  background: #fff;
  color: var(--c-brand);
  border-color: var(--c-brand);
}

.btn-outline:hover {
  background: var(--c-brand);
  color: #fff;
  border-color: var(--c-brand);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-line);
}

.btn-ghost:hover {
  border-color: var(--c-brand);
  color: var(--c-brand);
}

.btn-on-dark.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-on-dark.btn-outline:hover {
  background: #fff;
  color: var(--c-brand);
  border-color: #fff;
}

.btn .arrow {
  transition: transform var(--dur-fast) var(--ease-snap);
}

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

.btn-lg {
  padding: 18px 36px;
  font-size: 1rem;
}

/* Industry chips */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-size: var(--fs-meta);
  font-weight: 500;
  background: var(--c-brand-soft);
  color: var(--c-brand-deep);
  border: 1px solid transparent;
  transition: all var(--dur-fast) var(--ease-snap);
  cursor: pointer;
}

.chip:hover {
  background: var(--c-brand);
  color: #fff;
}

.chip--badge {
  background: var(--c-brand);
  color: #fff;
  font-size: 11px;
  padding: 4px 10px;
  pointer-events: none;
}

/* Compact white pill — used for the navbar primary CTA per Figma handoff. */
.btn-pill {
  padding: 11px 22px;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 999px;
  background: #FFFFFF;
  color: var(--c-ink);
  border: 1px solid #FFFFFF;
  box-shadow: 0 4px 14px rgba(11, 20, 32, 0.22), 0 2px 4px rgba(11, 20, 32, 0.12);
  /* Fast colour swap (120ms), smoother lift (320ms easing) */
  transition:
    background 120ms ease,
    color 120ms ease,
    border-color 120ms ease,
    box-shadow 320ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.btn-pill .arrow {
  margin-left: 6px;
  color: var(--c-brand);
  transition: color 120ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.btn-pill:hover {
  background: var(--c-brand);
  color: #FFFFFF;
  border-color: var(--c-brand);
  box-shadow: 0 8px 22px rgba(8, 112, 202, 0.38), 0 3px 8px rgba(8, 112, 202, 0.22);
  transform: translateY(-2px);
}

.site-header.over-hero .btn-pill:hover {
  background: #3FA5E8;
  border-color: #3FA5E8;
  box-shadow: 0 8px 22px rgba(63, 165, 232, 0.38), 0 3px 8px rgba(63, 165, 232, 0.22);
}

.btn-pill:hover .arrow {
  color: #FFFFFF;
  transform: translateX(2px);
}

.btn-pill:active {
  transform: translateY(0);
  transition-duration: 80ms;
}

/* ----- 5. Header — always has a solid bg ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: 14px 0;
  transition:
    background var(--dur-base) var(--ease-snap),
    box-shadow var(--dur-base) var(--ease-snap),
    border-color var(--dur-base) var(--ease-snap),
    color var(--dur-base) var(--ease-snap);
  /* Default = solid white (used on sub-pages and when scrolled past dark hero) */
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 20, 32, 0.08);
  box-shadow: 0 1px 0 rgba(11, 20, 32, 0.02);
  color: var(--c-ink);
}

/* Over-hero state (home pages above the fold) — fully transparent, white text/logo */
.site-header.over-hero {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  box-shadow: none;
  color: #fff;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo: two image variants — show whichever matches the current state */
.site-header__brand {
  display: inline-flex;
  align-items: center;
  height: 40px;
  /* Suppress the mobile-browser default blue tap-flash on touch. */
  -webkit-tap-highlight-color: transparent;
}

.site-header__brand:focus {
  outline: none;
}

.site-header__brand:focus-visible {
  outline: 2px solid var(--c-accent-cyan);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header__brand img {
  height: 32px;
  width: auto;
  display: block;
}

.site-header__brand .logo--white {
  display: none;
}

.site-header__brand .logo--dark {
  display: block;
}

.site-header.over-hero .site-header__brand .logo--white {
  display: block;
}

.site-header.over-hero .site-header__brand .logo--dark {
  display: none;
}

.site-header__nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.site-header__nav a {
  color: var(--c-ink);
  font-size: var(--fs-body-s);
  font-weight: 500;
  position: relative;
  transition: color var(--dur-fast) var(--ease-snap);
}

.site-header.over-hero .site-header__nav a {
  color: rgba(255, 255, 255, 0.88);
}

.site-header__nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--c-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-snap);
}

.site-header.over-hero .site-header__nav a::after {
  background: var(--c-accent-cyan);
}

.site-header__nav a:hover {
  color: var(--c-brand);
}

.site-header.over-hero .site-header__nav a:hover {
  color: var(--c-accent-cyan);
}

.site-header__nav a:hover::after {
  transform: scaleX(1);
}

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

.site-header .lang-switch {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-ink-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  padding: 6px 12px;
  display: inline-flex;
  gap: 4px;
  align-items: center;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}

.site-header.over-hero .lang-switch {
  color: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 255, 255, 0.18);
}

.site-header .lang-switch a {
  padding: 0 3px;
}

.site-header .lang-switch .active {
  color: inherit;
  font-weight: 700;
}

.site-header .lang-switch a:not(.active) {
  opacity: 0.55;
  transition: color var(--dur-fast) var(--ease-snap), opacity var(--dur-fast);
}

.site-header .lang-switch a:hover {
  color: var(--c-brand);
  opacity: 1;
}

/* Over the dark hero, brand blue is too dark; use cyan accent instead. */
.site-header.over-hero .lang-switch a:hover {
  color: var(--c-accent-cyan);
  opacity: 1;
}

@media (max-width: 1100px) and (min-width: 981px) {
  .site-header__inner {
    gap: 16px;
  }

  .site-header__nav {
    gap: 20px;
  }

  .site-header__cta {
    gap: 8px;
  }

  .site-header__nav a {
    font-size: 0.9375rem;
  }
}

/* Mobile header */
.menu-toggle {
  display: none;
}

/* Hamburger menu: viewports ≤980px or any touch device ≤1366px. */
@media (max-width: 980px),
(max-width: 1366px) and (pointer: coarse) {
  .site-header__nav {
    display: none;
  }

  .site-header__cta .btn {
    display: none;
  }

  .site-header .lang-switch {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    width: 44px;
    height: 44px;
    border-radius: var(--r-pill);
    align-items: center;
    justify-content: center;
    background: var(--c-ink);
    border: 1px solid var(--c-ink);
    /* Suppress the mobile-browser default blue tap-flash on touch. */
    -webkit-tap-highlight-color: transparent;
    color: #fff;
    transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast), transform var(--dur-fast);
  }

  .menu-toggle:hover {
    background: var(--c-brand);
    border-color: var(--c-brand);
  }

  .menu-toggle:active {
    transform: scale(0.95);
  }

  .menu-toggle:focus {
    outline: none;
  }

  .menu-toggle:focus-visible {
    outline: 2px solid var(--c-accent-cyan);
    outline-offset: 2px;
  }

  /* Over-hero state = transparent navbar over the dark hero → translucent white pill */
  .site-header.over-hero .menu-toggle {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.24);
    color: #fff;
  }

  .site-header.over-hero .menu-toggle:hover {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.4);
  }
}

.site-header__brand {
  flex-shrink: 0;
}

.site-header__brand img {
  flex-shrink: 0;
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(11, 20, 32, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 60;
  flex-direction: column;
  padding: 88px 32px 40px;
  gap: 4px;
  overflow-y: auto;
}

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

.mobile-nav__close {
  position: absolute;
  top: 18px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--dur-fast), border-color var(--dur-fast);
}

.mobile-nav__close:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.36);
}

/* Section IDs / page links inside the drawer */
.mobile-nav a {
  color: #fff;
  font-size: 1.375rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 0;
}

.mobile-nav a:hover {
  color: var(--c-accent-cyan);
}

.mobile-nav>a:last-of-type {
  border-bottom: 0;
}

.mobile-nav__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.mobile-nav__actions .btn {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 16px 24px;
}

.mobile-nav__actions .btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.mobile-nav__actions .btn-outline:hover {
  background: #fff;
  color: var(--c-brand);
  border-color: #fff;
}

/* Language switcher pill inside the drawer */
.mobile-nav__lang {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

.mobile-nav__lang-pill {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--r-pill);
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

.mobile-nav__lang-pill a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  font-weight: 600;
  padding: 0 6px;
  border: 0;
}

.mobile-nav__lang-pill a.active {
  color: #fff;
}

.mobile-nav__lang-pill a:hover {
  color: var(--c-accent-cyan);
}

.mobile-nav__lang-pill span {
  color: rgba(255, 255, 255, 0.3);
  padding: 0 2px;
}

/* ----- 6. Hero ----- */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--c-hero-bg);
  color: #fff;
  overflow: hidden;
  display: grid;
  grid-template-rows: 1fr auto;
}

/* Background image variant (new design — replaces the WebGL hero) */
.hero--image .hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    radial-gradient(ellipse 70% 55% at 50% 48%, rgba(4, 11, 31, 0.40) 0%, rgba(4, 11, 31, 0.18) 55%, transparent 85%),
    linear-gradient(180deg, rgba(4, 11, 31, 0.45) 0%, rgba(4, 11, 31, 0.22) 30%, rgba(4, 11, 31, 0.30) 70%, rgba(4, 11, 31, 0.75) 100%),
    url('/assets/images/hero-bg.jpg');
  background-size: cover, cover, cover;
  background-position: center;
  background-repeat: no-repeat;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  text-align: left;
  padding-top: clamp(180px, 20vh, 240px);
  padding-bottom: clamp(96px, 12vh, 160px);
  width: 100%;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.4vw, 3.93rem);
  /* desktop ~62.92px */
  line-height: 1.14;
  letter-spacing: -0.018em;
  color: #fff;
  margin: 0 0 24px;
  max-width: 100%;
  text-align: left;
  white-space: nowrap;
}

.lang-en .hero__title {
  font-size: clamp(1.75rem, 3.6vw, 3.4rem);
  max-width: 100%;
}

@media (max-width: 980px) {

  /* On narrow viewports let JP H1 wrap naturally, slightly larger floor */
  .hero__title {
    white-space: normal;
    font-size: clamp(2.125rem, 7.2vw, 3rem);
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 100svh;
  }

  .hero__title,
  .hero__sub,
  .hero__caption {
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
  }
}

/* === Tablet (641–1100px) === */
@media (min-width: 641px) and (max-width: 1100px) {

  .hero {
    min-height: 100svh;
  }

  /* Sensible Japanese line breaks — never mid-character. */
  .hero__title,
  .hero__sub,
  .hero__caption {
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
  }

  /* Larger hero content — tablets have room to scale closer to desktop. */
  .hero__title {
    white-space: normal;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
  }

  .hero__sub {
    font-size: clamp(1.25rem, 2.2vw, 1.75rem);
    margin: 0 0 64px;
  }

  .hero__formula {
    gap: 14px;
    flex-wrap: nowrap;
    justify-content: flex-start;
    margin: 0 0 20px;
  }

  .hero__formula .formula-chip {
    padding: 10px 28px;
    font-weight: 700;
    font-size: clamp(1.25rem, 2vw, 1.625rem);
    min-width: 0;
  }

  .hero__formula .formula-x {
    /* Tablet: scaled larger + bold (inherits font-weight from base). */
    font-size: clamp(1.875rem, 3vw, 2.5rem);
    color: rgba(255, 255, 255, 0.92);
  }

  .hero__caption {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
  }
}

/* Figma-spec subhead: Noto Sans JP Bold 32px, letter-spacing 3.16, 96% white */
.hero__sub {
  font-family: var(--font-jp), var(--font-en);
  font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 2rem);
  /* desktop 32px */
  line-height: 1.18;
  letter-spacing: 0.1em;
  /* 3.16 ≈ 0.1em at 32px */
  color: rgba(255, 255, 255, 0.96);
  margin: 0 0 100px;
  max-width: 60ch;
  text-align: left;
}

.lang-en .hero__sub {
  font-family: var(--font-en);
  font-size: clamp(0.95rem, 1.4vw, 1.5rem);
  letter-spacing: 0.08em;
}

/* Caption below the formula chips ("CAD・BIMデータ etc.") */
.hero__caption {
  font-size: clamp(1rem, 1.25vw, 1.125rem);
  color: #FFFFFF;
  letter-spacing: 0.04em;
  margin: -8px 0 0 12px;
  text-align: left;
  font-weight: 700;
}

@media (max-width: 640px) {
  .hero__caption {
    font-size: 0.9375rem;
  }
}

.hero__formula {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  flex-wrap: wrap;
  margin: 0 0 24px;
}

.hero__formula .formula-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 24px;
  border: 1px solid rgba(77, 208, 255, 0.85);
  background: rgba(4, 11, 31, 0.58);
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.375rem, 2vw, 1.875rem);
  color: #fff;
  letter-spacing: 0.02em;
  white-space: nowrap;
  min-width: 140px;
  text-align: center;
}

.hero__formula .formula-x {
  font-family: var(--font-display);
  
  font-size: clamp(2.25rem, 2.8vw, 3.25rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  user-select: none;
}

@media (max-width: 980px),
(max-width: 1366px) and (pointer: coarse) {

  .hero__formula {
    gap: 10px;
    margin: 0 0 16px;
    flex-wrap: nowrap;
    justify-content: flex-start;
  }

  .hero__formula .formula-chip {
    padding: 8px 18px;
    font-weight: 700;
    font-size: clamp(1.05rem, 4vw, 1.4rem);
    min-width: 0;
  }

  .hero__formula .formula-x {
    /* Mobile: larger + bold (font-weight inherits from the base rule). */
    font-size: clamp(1.5rem, 5.6vw, 2rem);
    color: rgba(255, 255, 255, 0.92);
  }
}

.hero__marquee {
  position: relative;
  z-index: 2;
  background: #FFFFFF;
  border-top: 1px solid rgba(11, 20, 32, 0.08);
  padding: 16px 0;
  overflow: hidden;
}

/* Unified mobile/tablet button sizing: 240x44 pill, single line, centered. */
@media (max-width: 980px),
(max-width: 1366px) and (pointer: coarse) {
  .btn {
    padding: 11px 22px;
    font-size: 0.875rem;
    min-height: 44px;
    white-space: nowrap;
    letter-spacing: 0.01em;
  }

  .btn-lg {
    padding: 12px 24px;
    font-size: 0.875rem;
    min-height: 46px;
  }

  .hero__cta .btn,
  .closing__cta .btn,
  .mobile-nav__actions .btn,
  .form-actions .btn,
  .section-cta .btn {
    flex: 0 0 auto;
    width: 240px;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  /* Hero + Closing CTAs: stack vertically, center each. JP and EN now identical. */
  .hero__cta,
  .closing__cta {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  /* Mobile-nav drawer actions: column was default; just center each pill */
  .mobile-nav__actions {
    align-items: center;
  }
}

@media (max-width: 720px) {

  /* Hero h1/sub: drop the desktop max-width caps so they wrap naturally on phone */
  .hero h1 {
    max-width: 100%;
  }

  .hero__sub {
    max-width: 100%;
  }
}

.hero__marquee-track {
  display: flex;
  align-items: center;
  animation: marquee 54s linear infinite;
  animation-play-state: paused;
  width: max-content;
  will-change: transform;
  backface-visibility: hidden;
  transform: translateZ(0);
  contain: layout paint;
}

.hero__marquee-track.is-ready {
  animation-play-state: running;
}

.hero__marquee-track>* {
  margin-right: 72px;
}

.hero__marquee-track .logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 108px;
  padding: 0;
  margin: 0 28px;
  flex: 0 0 auto;
}

.hero__marquee-track .logo-mark img {
  height: 78px;
  width: auto;
  max-width: 340px;   /* safety cap raised proportionally for very wide marks */
  object-fit: contain;
  display: block;
  opacity: 1;
}

.hero__marquee-track .logo-mark img[src*="mitsubishi-chemical"],
.hero__marquee-track .logo-mark img[src*="shinnihon-printing"],
.hero__marquee-track .logo-mark img[src*="dia-kensetsu"],
.hero__marquee-track .logo-mark img[src*="rn-kensetsu"],
.hero__marquee-track .logo-mark img[src*="azusa-sekkei"],
.hero__marquee-track .logo-mark img[src*="ando-hazama"],
.hero__marquee-track .logo-mark img[src*="elephantstone"],
.hero__marquee-track .logo-mark img[src*="autodesk"],
.hero__marquee-track .logo-mark img[src*="mitsui-designtec"],
.hero__marquee-track .logo-mark img[src*="mitsui-toshi"] {
  height: 100px;
  max-width: 420px;
}

.hero__marquee-track .logo-mark img[src*="kanko-kikaku"],
.hero__marquee-track .logo-mark img[src*="kuniken"] {
  height: 56px;
}

/* ONOCOM + KASUMIGASEKI CAPITAL read small at the default height — bump them up. */
.hero__marquee-track .logo-mark img[src*="onocom"],
.hero__marquee-track .logo-mark img[src*="kasumigaseki-capital"] {
  height: 92px;
}

@media (max-width: 640px) {
  .hero__marquee {
    padding: 10px 0;
  }

  .hero__marquee-track .logo-mark {
    height: 76px;            /* taller cell to fit the scaled wordmarks */
    padding: 0;
    margin: 0 14px;
  }

  .hero__marquee-track .logo-mark img {
    height: 52px;
    width: auto;
    max-width: 220px;
  }

  .hero__marquee-track .logo-mark img[src*="mitsubishi-chemical"],
  .hero__marquee-track .logo-mark img[src*="shinnihon-printing"],
  .hero__marquee-track .logo-mark img[src*="dia-kensetsu"],
  .hero__marquee-track .logo-mark img[src*="rn-kensetsu"],
  .hero__marquee-track .logo-mark img[src*="azusa-sekkei"],
  .hero__marquee-track .logo-mark img[src*="ando-hazama"],
  .hero__marquee-track .logo-mark img[src*="elephantstone"],
  .hero__marquee-track .logo-mark img[src*="autodesk"],
  .hero__marquee-track .logo-mark img[src*="mitsui-designtec"],
  .hero__marquee-track .logo-mark img[src*="mitsui-toshi"] {
    height: 67px;              /* desktop 100 * 0.667 */
    max-width: 280px;
  }

  .hero__marquee-track .logo-mark img[src*="kanko-kikaku"],
  .hero__marquee-track .logo-mark img[src*="kuniken"] {
    height: 37px;              /* desktop 56 * 0.667 */
  }

  .hero__marquee-track .logo-mark img[src*="onocom"],
  .hero__marquee-track .logo-mark img[src*="kasumigaseki-capital"] {
    height: 61px;              /* desktop 92 * 0.667 */
  }
}

@media (min-width: 641px) and (max-width: 1100px) {
  .hero__marquee-track .logo-mark {
    height: 80px;
    margin: 0 20px;
  }

  .hero__marquee-track .logo-mark img {
    height: 66px;              /* between mobile 52 and desktop 78 */
  }

  .hero__marquee-track .logo-mark img[src*="mitsubishi-chemical"],
  .hero__marquee-track .logo-mark img[src*="shinnihon-printing"],
  .hero__marquee-track .logo-mark img[src*="dia-kensetsu"],
  .hero__marquee-track .logo-mark img[src*="rn-kensetsu"],
  .hero__marquee-track .logo-mark img[src*="azusa-sekkei"],
  .hero__marquee-track .logo-mark img[src*="ando-hazama"],
  .hero__marquee-track .logo-mark img[src*="elephantstone"],
  .hero__marquee-track .logo-mark img[src*="autodesk"],
  .hero__marquee-track .logo-mark img[src*="mitsui-designtec"],
  .hero__marquee-track .logo-mark img[src*="mitsui-toshi"] {
    height: 85px;              /* desktop 100 × 0.85 ratio */
    max-width: 320px;
  }

  .hero__marquee-track .logo-mark img[src*="kanko-kikaku"],
  .hero__marquee-track .logo-mark img[src*="kuniken"] {
    height: 47px;              /* desktop 56 × 0.85 */
  }

  .hero__marquee-track .logo-mark img[src*="onocom"],
  .hero__marquee-track .logo-mark img[src*="kasumigaseki-capital"] {
    height: 78px;              /* desktop 92 × 0.85 */
  }
}

/* Hover effect on marquee logos removed per user request. */

@keyframes marquee {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(-50%, 0, 0);
  }
}

/* ----- 7. Solution diagram (DX2 — designer redesign v2) ----- */
.dx2 {
  background: #FFFFFF;
  padding-top: clamp(64px, 8vw, 120px);
  padding-bottom: clamp(64px, 8vw, 120px);
}

.dx2__intro {
  max-width: 1280px;
  margin: 0 auto 40px;
  text-align: left;
}

.dx2__lead {
  font-family: 'Quicksand', var(--font-display);
  color: var(--c-ink);
  font-size: clamp(0.9375rem, 1.3vw, 1.125rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
}

.dx2__headline {
  font-family: 'Quicksand', var(--font-display);
  color: #0B1420;
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.75rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin: 14px 0 14px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* Highlight only renders on mobile per design; flat black on desktop */
.dx2__hl {
  display: inline;
  background: transparent;
  padding: 0;
}

.dx2__sub {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  color: var(--c-ink-2);
  font-size: clamp(0.9375rem, 1.2vw, 1.0625rem);
  font-weight: 500;
  margin: 0;
}

.dx2__sub--mobile { display: none; }
.dx2__sub--desktop { display: block; }

/* ===== Main chart card ===== */
.dx2__chart {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  border-radius: 32px;
  background:
    radial-gradient(ellipse 100% 60% at 50% -20%, rgba(255,255,255,0.18) 0%, transparent 60%),
    linear-gradient(155deg, #2A8AD3 0%, #1672C2 30%, #0E5AAA 65%, #094690 100%);
  color: #fff;
  padding: clamp(28px, 3.2vw, 44px) clamp(20px, 2.6vw, 36px) clamp(28px, 3.2vw, 40px);
  overflow: hidden;
  box-shadow:
    0 30px 80px -32px rgba(8, 56, 122, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.dx2__chart-title {
  text-align: center;
  font-family: 'Quicksand', var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 1.375rem);
  letter-spacing: 0.03em;
  margin: 0 0 28px;
  color: #fff;
}

.dx2__grid {
  position: relative;
  display: grid;
  gap: 16px;
}

.dx2__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  display: block;
  overflow: visible;
  opacity: 0;                                  /* hide until JS finishes building */
}

.dx2__lines.dx2-lines-ready {
  opacity: 1;
  transition: opacity 280ms ease;
}

@keyframes dx2-pulse-flow {
  from { stroke-dashoffset: 0;    }
  to   { stroke-dashoffset: -100; }
}

/* ===== Item card (used in data card + standalone platform) ===== */
.dx2__item {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 999px;
  color: #fff;
}

.dx2__item-icon {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  background: rgba(11, 33, 84, 0.45);
  border-radius: 7px;
  padding: 5px;
}

.dx2__item-icon svg { width: 100%; height: 100%; }

.dx2__item-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.dx2__item-label {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  font-weight: 700;
  font-size: 0.875rem;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.dx2__item-sub {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

/* ===== LEFT: Design Data pill + sub-card ===== */
.dx2__cell--data {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: stretch;
}

.dx2__pill {
  align-self: center;
  display: inline-block;
  padding: 6px 22px;
  margin-bottom: -16px;
  position: relative;
  z-index: 4;
  background: #EDF2FF;
  color: #0870CA;
  font-family: 'Quicksand', var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  border-radius: 12px;
  border: 1px solid rgba(58, 162, 255, 0.32);
  box-shadow: 0 6px 16px -6px rgba(0, 0, 0, 0.20);
  letter-spacing: 0.06em;
}

.dx2__data-card {
  position: relative;
  z-index: 3;
  background: #B5DAFF;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 22px;
  padding: 32px 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dx2__data-card .dx2__item {
  background: #156CBA;
  border: 1px solid rgba(77, 208, 255, 0.38);
  border-radius: 16px;
  padding: 12px 14px;
  gap: 12px;
}

.dx2__data-card .dx2__item-icon {
  width: 34px;
  height: 34px;
  background: rgba(30, 91, 255, 0.34);
  border: 1px solid rgba(77, 208, 255, 0.35);
  border-radius: 9px;
  padding: 7px;
  color: rgba(77, 208, 255, 0.9);
}

.dx2__data-card .dx2__item-label {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #FFFFFF;
}

.dx2__data-card .dx2__item-sub {
  font-size: 0.75rem;
  color: rgba(220, 235, 252, 0.78);
  font-weight: 500;
  margin-top: 2px;
}

/* ===== MIDDLE platform items (CDE / Digital Twin / Visualization) ===== */
.dx2__cell--platforms .dx2__item {
  background: #3875B8;
  border: 1px solid rgba(77, 208, 255, 0.38);
  border-radius: 16px;
  padding: 18px 14px;
  gap: 12px;
}

.dx2__cell--platforms .dx2__item-icon {
  width: 34px;
  height: 34px;
  background: rgba(0, 69, 255, 0.27);
  border: 1px solid rgba(77, 208, 255, 0.27);
  border-radius: 9px;
  padding: 7px;
  color: rgba(77, 208, 255, 0.95);
}

.dx2__cell--platforms .dx2__item-icon svg {
  stroke-width: 1;
}

.dx2__cell--platforms .dx2__item-label {
  color: #FFFFFF;
}

.dx2__cell--platforms .dx2__item-sub {
  color: rgba(255, 255, 255, 0.78);
}

/* ===== MIDDLE: 3 platform items ===== */
.dx2__cell--platforms {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
}

/* ===== AI circle ===== */
.dx2__cell--ai {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.dx2__ai {
  position: relative;
  z-index: 3;
  width: 108px;
  height: 108px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(8, 112, 202, 0.30);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow:
    0 16px 36px -14px rgba(3, 32, 88, 0.45);
  color: #0870CA;
}

.dx2__ai-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  line-height: 1;
}

.dx2__ai-row {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* AI + 実装 read as a single word — no gap between them on the top row */
.dx2__ai-row--top {
  gap: 0;
}

html[lang="en"] .dx2__ai-row--top {
  flex-direction: column;
  gap: 0;
  line-height: 1;
}
html[lang="en"] .dx2__ai-row--top .dx2__ai-title,
html[lang="en"] .dx2__ai-side,
html[lang="en"] .dx2__ai-bot {
  font-size: 0.75rem;
  line-height: 1.1;
  letter-spacing: 0.01em;
  font-weight: 700;
}
html[lang="en"] .dx2__ai-dot {
  margin: 3px 0;
}
html[lang="en"] .dx2__ai-row--bottom {
  margin-top: 0;
}
html[lang="en"] .dx2__ai-dot-svg {
  width: 8px;
  height: 8px;
}

.dx2__ai-side,
.dx2__ai-bot {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  font-weight: 700;
  font-size: 1.125rem;
  color: #0870CA;
  letter-spacing: 0.02em;
}

.dx2__ai-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0870CA;
  margin: 4px 0;
}

.dx2__ai-dot-svg {
  width: 8px;
  height: 8px;
  display: block;
}

/* Expanding pulse rings — paired double waves, sit BEHIND the circle */
.dx2__ai-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 108px;
  height: 108px;
  margin: -54px 0 0 -54px;
  border-radius: 50%;
  border: 2.5px solid rgba(8, 112, 202, 0.85);
  pointer-events: none;
  animation: dx2-ai-pulse 2.6s cubic-bezier(0.22, 0.61, 0.36, 1) infinite;
}

.dx2__ai-pulse--delay { animation-delay: 1.3s; }

@keyframes dx2-ai-pulse {
  0% {
    transform: scale(1);
    opacity: 0.9;
  }
  70% {
    opacity: 0.25;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.dx2__ai-title {
  font-family: 'Quicksand', var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  color: #0870CA;
}

.dx2__ai-row--top .dx2__ai-title {
  font-size: 1.25rem;
}

.dx2__ai-sub {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  font-weight: 700;
  font-size: 0.6875rem;
  color: #0B1420;
  letter-spacing: 0.02em;
  margin-top: 3px;
  line-height: 1.15;
}

/* ===== RIGHT: DX tools ===== */
.dx2__cell--tools {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dx2__tools-title {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  background: #EDF2FF;
  color: #0870CA;
  font-family: 'Quicksand', var(--font-display);
  border-radius: 10px;
  border: 1px solid rgba(58, 162, 255, 0.47);
  padding: 7px 18px;
  box-shadow: 0 6px 16px -8px rgba(0, 0, 0, 0.18);
  gap: 12px;
}

.dx2__tools-main {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  color: #0870CA;
}

.dx2__tools-desc {
  flex: 1;
  font-weight: 500;
  font-size: 0.8125rem;
  color: #4A5568;
  letter-spacing: 0.02em;
  padding-left: 12px;
  border-left: 1px solid rgba(11, 33, 84, 0.18);
}

.dx2__tools-count {
  font-size: 0.6875rem;
  font-weight: 700;
  background: #E6F0FA;
  color: #0B2154;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.dx2__tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.dx2__tool {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 12px;
  background: rgba(255, 255, 255, 0.20);
  border: 1px solid rgba(77, 148, 255, 0.90);
  border-radius: 8px;
  min-height: 52px;
  transition: background 200ms ease, border-color 200ms ease;
}

.dx2__tool:hover {
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(77, 148, 255, 1);
}

.dx2__tool-icon {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.dx2__tool-icon svg { width: 100%; height: 100%; }

.dx2__tool-label {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  font-weight: 600;
  font-size: 0.875rem;
  color: #fff;
  line-height: 1.2;
  letter-spacing: 0.01em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* ===== Downward arrow between chart and band ===== */
.dx2__arrow {
  display: block;
  width: 0;
  height: 0;
  margin: 18px auto;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 24px solid #1378CC;
  opacity: 1;
  filter: drop-shadow(0 6px 10px rgba(8, 56, 122, 0.28));
}

/* ===== Bottom blue band ===== */
.dx2__band {
  max-width: 1280px;
  margin: 18px auto 0;
  background:
    radial-gradient(ellipse 100% 60% at 50% -20%, rgba(255,255,255,0.18) 0%, transparent 60%),
    linear-gradient(155deg, #2A8AD3 0%, #1672C2 30%, #0E5AAA 65%, #094690 100%);
  color: #fff;
  padding: 14px clamp(20px, 3vw, 40px);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
  flex-wrap: wrap;
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  font-weight: 700;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  letter-spacing: 0.02em;
  box-shadow:
    0 18px 40px -20px rgba(8, 56, 122, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.dx2__band-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.dx2__band-arrows {
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.95);
  margin-left: 10px;
}

.dx2__band-arrow-svg {
  width: 84px;
  height: 26px;
  display: block;
}

.dx2__band-sep { display: none; }


@media (min-width: 1280px) {
  .dx2__grid {
    grid-template-columns: 220px 210px 150px 1fr;
    align-items: stretch;
    gap: 20px;
    min-height: 380px;
  }

  .dx2__cell--data,
  .dx2__cell--platforms,
  .dx2__cell--tools {
    align-self: stretch;
    justify-content: center;
  }

  .dx2__cell--platforms {
    justify-content: center;
    gap: 10px;
    padding-top: 42px;
  }

  .dx2__ai {
    width: 108px;
    height: 108px;
  }

  .dx2__ai-row--top .dx2__ai-title {
    font-size: 1.5625rem;
  }

  .dx2__ai-side,
  .dx2__ai-bot {
    font-size: 1.28125rem;
  }

  .dx2__ai-dot {
    margin: 2px 0;
  }

  .dx2__ai-dot-svg {
    width: 10px;
    height: 10px;
  }

  .dx2__ai-row--bottom {
    margin-top: 4px;
  }

  .dx2__chart {
    padding: 32px 44px 32px;
  }

  /* Desktop tools title shows only the main label centered */
  .dx2__tools-title {
    justify-content: center;
  }
  .dx2__tools-desc,
  .dx2__tools-count {
    display: none;
  }
  .dx2__tools-main {
    font-size: 1.25rem;
  }

  .dx2__chart-title {
    font-size: 1.625rem;
    margin-bottom: 20px;
  }

  .dx2__intro {
    margin-bottom: 56px;
  }
}

@media (max-width: 1279px) {
  .dx2__sub--desktop { display: none; }
  .dx2__sub--mobile { display: block; }

  .dx2__hl {
    background: transparent;
    padding: 0;
    white-space: nowrap;
  }

  /* Chart container — tighter padding + smaller corner radius matching inner tiles */
  .dx2__chart {
    padding: 18px 14px 18px;
    position: relative;
    border-radius: 12px;
  }

  .dx2__chart-title {
    display: block;
    color: #fff;
    font-family: 'Quicksand', var(--font-display);
    font-weight: 700;
    font-size: clamp(0.6875rem, 3.4vw, 1rem);
    line-height: 1.3;
    text-align: center;
    margin: 0 0 18px;
    padding: 14px 0 12px;
    letter-spacing: 0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip;
  }

  .dx2__grid {
    display: grid;
    grid-template-columns: 1fr;
    row-gap: 22px;
    min-height: 0;
  }

  .dx2__pill { display: none; }

  /* Row 1: data tiles (BIM / CIM / CAD) — 3 equal cols side by side */
  .dx2__cell--data {
    grid-column: 1;
    background: transparent;
    border: none;
    padding: 0;
    z-index: auto;
  }
  .dx2__data-card {
    position: static;
    background: transparent;
    border: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    z-index: auto;
  }

  /* Row 2: platform pills (CDE / Digital Twin / Visualization) — 3 equal cols side by side */
  .dx2__cell--platforms {
    grid-column: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding-top: 0;
  }

  .dx2__cell--ai {
    grid-column: 1;
    grid-row: auto;
    justify-self: center;
    align-self: center;
    position: relative;
    top: auto;
    right: auto;
    margin: 0;
    width: 58px;
    height: 58px;
  }
  .dx2__ai {
    width: 58px;
    height: 58px;
    border-width: 1.5px;
  }
  html[lang="ja"] .dx2__ai-row--top .dx2__ai-title {
    font-size: 0.875rem;
  }
  html[lang="ja"] .dx2__ai-side,
  html[lang="ja"] .dx2__ai-bot {
    font-size: 0.8rem;
  }
  html[lang="en"] .dx2__ai-row--top .dx2__ai-title,
  html[lang="en"] .dx2__ai-side,
  html[lang="en"] .dx2__ai-bot {
    font-size: 0.4375rem;
  }
  .dx2__ai-dot-svg {
    width: 4px;
    height: 4px;
  }
  .dx2__ai-pulse {
    width: 58px;
    height: 58px;
    margin: -29px 0 0 -29px;
  }

  .dx2__data-card .dx2__item,
  .dx2__cell--platforms .dx2__item {
    flex-direction: column;
    padding: 12px 8px;
    gap: 6px;
    min-width: 0;
    min-height: 0;
    border-radius: 10px;
    text-align: center;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
  }

  .dx2__item-icon {
    width: 22px;
    height: 22px;
    padding: 4px;
    flex-shrink: 0;
  }

  .dx2__item-text {
    flex: 0 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .dx2__data-card .dx2__item-label,
  .dx2__cell--platforms .dx2__item-label {
    font-size: 0.6875rem;
    line-height: 1.2;
    word-break: break-all;
    overflow-wrap: anywhere;
    white-space: normal;
    text-align: center;
  }

  .dx2__data-card .dx2__item-label br,
  .dx2__cell--platforms .dx2__item-label br {
    display: none;
  }

  .dx2__item-sub { display: none; }

  /* === Tools section === */
  .dx2__cell--tools {
    grid-column: 1;
    margin-top: 0;
  }

  /* DX Solutions title container — title only, centered, on mobile */
  .dx2__tools-title {
    padding: 10px 14px;
    gap: 0;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
  }

  .dx2__tools-main {
    font-size: 0.875rem;
    white-space: nowrap;
    text-align: center;
    width: 100%;
  }

  .dx2__tools-desc,
  .dx2__tools-count {
    display: none;
  }

  /* Tools grid: 3-col, equal-height + equal-width tiles */
  .dx2__tools {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 1fr;
    gap: 5px;
    margin-top: 6px;
  }

  .dx2__tool {
    flex-direction: column;
    padding: 20px 8px 10px;
    min-height: 64px;
    height: 100%;
    border-radius: 8px;
    gap: 6px;
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
  }

  .dx2__tool-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin: 0;
  }

  .dx2__tool-label {
    font-size: 0.5625rem;
    line-height: 1.2;
    word-break: break-all;
    overflow-wrap: anywhere;
    text-align: left;
    width: 100%;
    hyphens: auto;
  }

  /* Show the bottom arrow + band on mobile. Stack as two separate pill rows
     (one per .dx2__band-item) — band wrapper becomes invisible. */
  .dx2__arrow {
    display: block;
  }

  .dx2__band {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: none;
    box-shadow: none;
    padding: 0;
    font-size: 0.75rem;
  }

  .dx2__band-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    border-radius: 0;
    background:
      radial-gradient(ellipse 100% 60% at 50% -20%, rgba(255,255,255,0.18) 0%, transparent 60%),
      linear-gradient(155deg, #2A8AD3 0%, #1672C2 30%, #0E5AAA 65%, #094690 100%);
    box-shadow:
      0 12px 28px -16px rgba(8, 56, 122, 0.35),
      inset 0 1px 0 rgba(255, 255, 255, 0.18);
    font-size: 0.6rem;
  }

  .dx2__band-arrows {
    margin-left: 6px;
  }

  .dx2__band-arrow-svg {
    width: 42px;
    height: 14px;
  }
}

@media (min-width: 641px) and (max-width: 1279px) {
  .dx2__chart {
    padding: 36px 32px;
    border-radius: 18px;
  }

  .dx2__chart-title {
    font-size: 1.375rem;
    margin: 0 0 32px;
    padding: 18px 0 18px;
  }

  .dx2__grid {
    row-gap: 44px;
  }

  /* Bigger interior padding on data/platform tiles so the chart breathes */
  .dx2__data-card .dx2__item,
  .dx2__cell--platforms .dx2__item {
    padding: 22px 16px 18px;
    gap: 10px;
    border-radius: 14px;
  }

  /* Larger icon container on tablet */
  .dx2__data-card .dx2__item-icon,
  .dx2__cell--platforms .dx2__item-icon {
    width: 30px;
    height: 30px;
    padding: 6px;
  }

  /* Bigger labels on tablet */
  .dx2__data-card .dx2__item-label,
  .dx2__cell--platforms .dx2__item-label {
    font-size: 0.875rem;
    line-height: 1.25;
  }

  /* AI circle larger on tablet */
  .dx2__cell--ai {
    width: 88px;
    height: 88px;
  }
  .dx2__ai {
    width: 88px;
    height: 88px;
    border-width: 2px;
  }
  html[lang="ja"] .dx2__ai-row--top .dx2__ai-title {
    font-size: 1.25rem;
  }
  html[lang="ja"] .dx2__ai-side,
  html[lang="ja"] .dx2__ai-bot {
    font-size: 0.75rem;
  }
  html[lang="en"] .dx2__ai-row--top .dx2__ai-title,
  html[lang="en"] .dx2__ai-side,
  html[lang="en"] .dx2__ai-bot {
    font-size: 0.6875rem;
  }
  .dx2__ai-dot-svg {
    width: 7px;
    height: 7px;
  }
  .dx2__ai-pulse {
    width: 88px;
    height: 88px;
    margin: -44px 0 0 -44px;
  }

  /* DX Solutions title: bigger */
  .dx2__tools-title {
    padding: 14px 20px;
  }
  .dx2__tools-main {
    font-size: 1.0625rem;
  }

  /* Tool tiles: taller + bigger labels */
  .dx2__tool {
    padding: 18px 12px 14px;
    min-height: 80px;
  }
  .dx2__tools {
    gap: 8px;
  }
  .dx2__tool-icon {
    width: 18px;
    height: 18px;
  }
  .dx2__tool-label {
    font-size: 0.8125rem;
  }
}

.case-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 980px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
  /* Show only the first 3 cards by default; toggle button reveals the rest. */
  .case-grid > .case-card:nth-child(n+4) { display: none; }
  .case-grid.is-expanded > .case-card:nth-child(n+4) { display: flex; }
}

.case-grid__toggle {
  display: none;
}
@media (max-width: 640px) {
  .case-grid__toggle {
    display: flex;
    justify-content: center;
    margin-top: 24px;
  }
}
.case-grid__toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: 25px;
  border: 1px solid rgba(11, 20, 32, 0.18);
  background: #fff;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--c-ink);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.case-grid__toggle-btn:hover,
.case-grid__toggle-btn:focus-visible {
  background: rgba(11, 20, 32, 0.04);
  border-color: rgba(11, 20, 32, 0.32);
}

.case-card {
  background: #fff;
  border: 1px solid rgba(11, 20, 32, 0.14);
  border-radius: 20px;
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  box-shadow:
    0 1px 0 rgba(11, 20, 32, 0.03),
    0 4px 16px -10px rgba(11, 20, 32, 0.08);
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(11, 20, 32, 0.22);
  box-shadow:
    0 1px 0 rgba(11, 20, 32, 0.04),
    0 16px 36px -14px rgba(11, 20, 32, 0.16);
}

.case-card__media {
  position: relative;
  aspect-ratio: 16/10;
  background: #fff;
  overflow: hidden;
  border-bottom: 1px solid rgba(11, 20, 32, 0.10);
}

.case-card__media svg,
.case-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}


.case-card__chip {
  position: absolute;
  top: 16px;
  left: 16px;
}

.case-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.case-card h3 {
  font-size: 1.125rem;
  line-height: 1.4;
}

.case-card .case-card__problem {
  font-size: var(--fs-body-s);
  color: var(--c-ink-2);
  flex: 1;
}

.case-card__link {
  color: var(--c-brand);
  font-weight: 600;
  font-size: var(--fs-body-s);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-card__link .arrow {
  transition: transform var(--dur-fast);
}

.case-card:hover .case-card__link .arrow {
  transform: translateX(4px);
}

.case-card.is-hidden {
  display: none;
}

/* Case detail */
.case-detail__hero {
  position: relative;
  background: linear-gradient(135deg, #3FA5E8 0%, #0870CA 50%, #054494 100%);
  color: #fff;
  padding: 144px 0 64px;
  overflow: hidden;
}

.case-detail__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/svg/anim-pattern-bim-node-grid-light.svg');
  background-size: 700px 490px;
  background-repeat: repeat;
  background-position: center;
  opacity: 0.6;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, transparent 15%, rgba(0,0,0,0.45) 28%, #000 45%, #000 90%, rgba(0,0,0,0.6) 100%);
  mask-image: linear-gradient(180deg, transparent 0%, transparent 15%, rgba(0,0,0,0.45) 28%, #000 45%, #000 90%, rgba(0,0,0,0.6) 100%);
  pointer-events: none;
  z-index: 0;
}

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

.case-detail__hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-top: 16px;
  max-width: 22ch;
}

.case-detail__hero .breadcrumb {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--fs-meta);
  display: flex;
  gap: 8px;
  align-items: center;
}

.case-detail__hero .breadcrumb a:hover {
  color: var(--c-accent-cyan);
}

.case-detail__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 48px 0;
  border-bottom: 1px solid var(--c-line);
}

@media (max-width: 880px) {
  .case-detail__row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.case-detail__row:last-of-type {
  border-bottom: 0;
}

.case-detail__label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
@media (max-width: 880px) {
  .case-detail__label { flex-direction: row; align-items: center; gap: 14px; text-align: left; }
}

.case-detail__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  color: #fff;
  flex-shrink: 0;
}
.case-detail__icon--challenge { background: #B45309; }
.case-detail__icon--solution { background: #0870CA; }
.case-detail__icon svg { width: 28px; height: 28px; }

.case-detail__label .ja {
  font-family: var(--font-jp);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
  letter-spacing: 0.04em;
}

.case-detail__body h3 {
  font-size: 1.375rem;
  margin-bottom: 12px;
  font-weight: 700;
  color: var(--c-ink);
}
.case-detail__body p {
  font-size: var(--fs-body);
  color: var(--c-ink-2);
  line-height: 1.85;
  margin: 0;
}

/* ----- 10. Why STUDIO55 ----- */
.why--dark {
  background: linear-gradient(160deg, #3FA5E8 0%, #0870CA 48%, #054494 100%);
  position: relative;
  overflow: hidden;
}

.why--dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/svg/anim-pattern-isometric-field.svg');
  
  background-size: 700px 490px;
  background-repeat: repeat;
  
  opacity: 0.14;
  pointer-events: none;
}

.why-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 72px;
  white-space: nowrap;
}

.why--dark .eyebrow {
  color: #fff;
}

.why--dark .eyebrow::before {
  background: #fff;
}

.why--dark .section-title {
  color: #fff;
}

.why--dark .section-lead {
  color: #FFFFFF;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 901px) {
  #software .section-lead {
    max-width: none;
    white-space: nowrap;
  }
}

.why-cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding: 0px 120px;
}

.why-card {
  position: relative;
  padding: 44px 36px 40px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #2D5BE3 0%, #4DD0FF 50%, #2D5BE3 100%);
  background-size: 200% 100%;
  animation: why-bar 5s linear infinite;
}

@keyframes why-bar {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

.why-card:hover {
  transform: translateY(-6px);
  border-color: rgba(45, 91, 227, 0.35);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(45, 91, 227, 0.18);
}

.why-card__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 16px;
  margin-left: 0;
}

.why-card__title {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 14px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.why-card__body {
  font-size: 0.875rem;
  color: #FFFFFF;
  line-height: 1.85;
  margin: 0;
}

@media (max-width: 900px) {
  /* Reset the desktop side-padding so cards aren't squeezed to ~150px on phones. */
  .why-cols {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 0;
  }

  .why-header {
    margin-bottom: 48px;
    white-space: normal;
  }

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

  .why-card__num {
    font-size: 2.5rem;
  }

  
  .why-header .section-title {
    white-space: nowrap;
    font-size: clamp(1.125rem, 4.6vw, 1.75rem);
    word-break: keep-all;
    overflow-wrap: normal;
    line-break: strict;
  }

  /* Lead + body: prevent mid-character widows in JP, soft-wrap EN at word boundaries. */
  .why-header .section-lead,
  .why-card__body {
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
  }
}

@media (max-width: 640px) {
  .why-card {
    padding: 24px 20px;
  }

  .why-card__num {
    font-size: 2rem;
    margin-bottom: 10px;
  }

  .why-card__title {
    font-size: 1.1875rem;
    /* Keep title from breaking mid-word and creating awkward single-char lines. */
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
  }

  /* Add inset breathing room around the card column on phones. */
  .why-cols {
    padding-left: 12px;
    padding-right: 12px;
  }
}

/* ----- 11. Logo wall ----- */
.client-stat {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.client-stat .num {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--c-brand);
  line-height: 1;
}

.client-stat .label {
  font-size: var(--fs-body-l);
  color: var(--c-ink-2);
}

.client-meta {
  font-size: var(--fs-meta);
  color: var(--c-ink-3);
}

.logo-wall {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.logo-wall .logo-cell {
  /* 6 per row at desktop: total - 5 gaps, divided by 6 */
  flex: 0 0 calc((100% - 60px) / 6);
}

@media (max-width: 1100px) {
  .logo-wall .logo-cell {
    flex: 0 0 calc((100% - 24px) / 3);
  }
}

@media (max-width: 640px) {
  .logo-wall .logo-cell {
    flex: 0 0 calc((100% - 24px) / 3);
  }

  /* Tighter padding so 3-up on a phone screen doesn't crush each logo. */
  .logo-wall {
    gap: 8px;
  }

  .logo-cell {
    padding: 10px;
  }

  /* Per-logo mobile shrink — daiwa kept; the rest dropped further. */
  .logo-cell--img img[src*="daiwa-house"] {
    transform: scale(0.55);
  }

  .logo-cell--img img[src*="kanko-kikaku"] {
    transform: scale(0.38);
  }

  .logo-cell--img img[src*="kuniken"] {
    transform: scale(0.34);
  }

  .logo-cell--img img[src*="ishii-sekkei"] {
    transform: scale(0.5);
  }

  .logo-wall .logo-cell:nth-child(n+4):nth-child(-n+6),
  .logo-wall .logo-cell:nth-child(n+13):nth-child(-n+15),
  .logo-wall .logo-cell:nth-child(n+28):nth-child(-n+30),
  .logo-wall .logo-cell:nth-child(n+34):nth-child(-n+36) {
    aspect-ratio: auto;
    height: 60px;
    min-height: 0;
    padding: 6px;
    overflow: hidden;
  }

  .logo-wall .logo-cell:nth-child(n+4):nth-child(-n+6) img,
  .logo-wall .logo-cell:nth-child(n+13):nth-child(-n+15) img,
  .logo-wall .logo-cell:nth-child(n+28):nth-child(-n+30) img,
  .logo-wall .logo-cell:nth-child(n+34):nth-child(-n+36) img {
    max-height: 48px;
    max-width: calc(100% - 12px);
  }
}

.logo-cell {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  aspect-ratio: 16/10;
  display: grid;
  place-items: center;
  padding: 16px;
  transition: all var(--dur-fast) var(--ease-snap);
  filter: grayscale(100%);
  opacity: 0.7;
}

.logo-cell:hover {
  filter: grayscale(0%);
  opacity: 1;
  border-color: var(--c-brand-soft);
  transform: translateY(-2px);
  box-shadow: var(--sh-1);
}

/* Image-bearing cell: don't pad as tightly so the logo can breathe */
.logo-cell--img {
  padding: 16px;
  filter: none;
  opacity: 1;
}

.logo-cell--img:hover {
  transform: translateY(-2px);
}

@media (min-width: 1101px) {

  .logo-wall .logo-cell:nth-child(-n+6) {
    aspect-ratio: auto;
    height: 128px;
    min-height: 0;
    padding: 12px;
    overflow: hidden;
  }

  .logo-wall .logo-cell:nth-child(-n+6) img {
    max-height: 104px;
    max-width: calc(100% - 24px);
  }

  .logo-wall .logo-cell:nth-child(n+25):nth-child(-n+30),
  .logo-wall .logo-cell:nth-child(n+31):nth-child(-n+36) {
    aspect-ratio: auto;
    height: 110px;
    min-height: 0;
    padding: 10px;
    overflow: hidden;
  }

  .logo-wall .logo-cell:nth-child(n+25):nth-child(-n+30) img,
  .logo-wall .logo-cell:nth-child(n+31):nth-child(-n+36) img {
    max-height: 90px;
    max-width: calc(100% - 20px);
  }
}

.logo-cell--img img[src*="nomura-kogeisha"],
.logo-cell--img img[src*="seiwa-business"],
.logo-cell--img img[src*="kyushu-sankyo"] {
  transform: scale(0.82);
}

.logo-cell--img img[src*="daiwa-house"] {
  transform: scale(0.85);
}

.logo-cell--img img[src*="kuniken"] {
  transform: scale(0.6);
}

.logo-cell--img:has(img[src*="mitsubishi-chemical"]),
.logo-cell--img:has(img[src*="shinnihon-printing"]),
.logo-cell--img:has(img[src*="shinryo"]) {
  padding: 4px;
}

.logo-cell--img img[src*="interbrains"],
.logo-cell--img img[src*="elephantstone"] {
  transform: scale(1.08);
}

/* Autodesk renders slightly larger than its peers — pull it down 7%. */
.logo-cell--img img[src*="autodesk"] {
  transform: scale(1.07);
}

.logo-cell--img img[src*="kanko-kikaku"] {
  transform: scale(0.65);
}

.logo-cell--img img[src*="ishii-sekkei"] {
  transform: scale(0.82);
}

.logo-cell--img img[src*="kasumigaseki-capital"] {
  transform: scale(0.92);
}

.logo-cell--img img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

/* ----- 12. Software partners ----- */
.sw-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1100px;
  margin: 48px auto 0;
}

.sw-col {
  display: flex;
  flex-direction: column;
  border-right: 1px dashed var(--c-line-strong);
  padding: 0 40px;
}

.sw-col:first-child {
  padding-left: 0;
}

.sw-col:last-child {
  border-right: none;
  padding-right: 0;
}

.sw-col-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sw-col-tag {
  display: block;
  font-family: var(--font-display);
  /* Bumped to --fs-meta to match site-wide tag/label sizing. */
  font-size: var(--fs-meta);
  font-weight: 700;
  color: var(--c-ink-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.sw-col-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.sw-col-text {
  font-size: 0.875rem;
  color: var(--c-ink-2);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.sw-col-link {
  font-family: var(--font-display);
  
  font-size: var(--fs-meta);
  font-weight: 700;
  color: var(--c-brand);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  text-decoration: none;
}

.sw-col-link:hover {
  opacity: 0.72;
}

.sw-col-illus {
  background: #FFFFFF;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 24px;
  margin-bottom: 32px;
}

.sw-col-illus img {
  max-width: 70%;
  max-height: 52px;
  width: auto;
  height: auto;
  object-fit: contain;
}

@media (max-width: 900px) {
  
  .sw-cols {
    grid-template-columns: 1fr;
    padding-left: 12px;
    padding-right: 12px;
  }

  .sw-col {
    border-right: none;
    
    border-bottom: 2px dashed var(--c-line-strong);
    /* Generous spacing: 48px below content before the separator + 48px above the next card. */
    padding: 0 0 48px;
    margin-bottom: 48px;
  }

  .sw-col:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .sw-col-illus {
    min-height: 80px;
    padding: 20px 18px;
    margin-bottom: 20px;
  }
}

@media (max-width: 980px) {
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 720px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ----- 14. Closing CTA ----- */
.closing {
  position: relative;
  background: linear-gradient(135deg, #3FA5E8 0%, #0870CA 50%, #054494 100%);
  color: #fff;
  overflow: hidden;
  /* Taller section: 88px max → 160px (more breathing room around the headline). */
  padding: clamp(96px, 10vw, 160px) 0;
  text-align: center;
}

.closing::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: url('/assets/svg/anim-pattern-bim-node-grid-light.svg');
  
  background-size: 700px 490px;
  background-repeat: repeat;
  background-position: center;
  opacity: 0.6;
  -webkit-mask-image: radial-gradient(ellipse 70% 65% at center, transparent 12%, rgba(0,0,0,0.4) 45%, #000 80%);
  mask-image: radial-gradient(ellipse 70% 65% at center, transparent 12%, rgba(0,0,0,0.4) 45%, #000 80%);
  pointer-events: none;
}

.closing__inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 28px;
  letter-spacing: -0.005em;
  line-height: 1.32;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.closing h2 .highlight {
  display: inline-block;
  background: #fff;
  
  color: var(--c-ink);
  padding: 0.08em 0.4em;
  border-radius: 10px;
  margin: 0 0.12em;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.closing p {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: rgba(255, 255, 255, 0.94);
  max-width: 60ch;
  margin: 0 auto 44px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  /* Reset the inline-text default so each .closing__line is its own row. */
  text-align: center;
}

.closing__line {
  display: block;
  /* Keep each whole line on one row on desktop — the only break is from
     <br class="br-mobile"> which activates only at ≤640px. */
  white-space: nowrap;
}

@media (max-width: 640px) {
  .closing__line {
    white-space: normal;
  }
}

.closing__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.closing__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 48px;
  border: 2px solid rgba(255, 255, 255, 0.95);
  border-radius: 999px;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  background: transparent;
  transition: background 200ms ease, color 200ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 320ms ease;
}

.closing__btn:hover {
  background: #fff;
  color: #0870CA;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.closing__btn:hover .arrow {
  transform: translateX(3px);
}

.closing__btn .arrow {
  transition: transform 200ms ease;
}

.br-mobile {
  display: none;
}

@media (max-width: 640px) {
  .br-mobile {
    display: inline;
  }

  .closing {
    
    padding: 96px 0;
  }

  .closing h2 {
    font-size: clamp(1.375rem, 5.6vw, 1.75rem);
    margin: 0 0 18px;
    line-height: 1.38;
  }

  .closing p {
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 28px;
  }

  /* Smaller, lighter CTA pill on phones. */
  .closing__btn,
  .download__btn {
    padding: 12px 32px;
    font-size: 0.9375rem;
  }
}

/* ----- 15. Footer ----- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--c-line);
  padding: 64px 0 32px;
  font-size: var(--fs-body-s);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

@media (max-width: 880px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px 24px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 24px 16px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

.site-footer__brand .tag {
  color: var(--c-ink-3);
  margin-top: 16px;
  max-width: 44ch;
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
}

@media (max-width: 880px) {

  .site-footer__brand .tag {
    max-width: 60ch;
    font-size: var(--fs-meta);
    line-height: 1.55;
  }
}

.site-footer h4 {
  font-size: var(--fs-meta);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-ink-3);
  margin-bottom: 16px;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.site-footer a {
  color: var(--c-ink-2);
}

.site-footer a:hover {
  color: var(--c-brand);
}

.site-footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-meta);
  color: var(--c-ink-3);
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer__bottom .lang-switch a {
  padding: 0 6px;
}

.site-footer__bottom .lang-switch .active {
  color: var(--c-ink);
  font-weight: 700;
}

/* ----- 16a. Scroll-to-top button (auto-injected by main.js on all pages) ----- */
.scroll-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: var(--r-pill);
  background: var(--c-brand);
  color: #fff;
  display: grid;
  place-items: center;
  z-index: var(--z-banner);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity var(--dur-base) var(--ease-snap), transform var(--dur-base) var(--ease-snap), background var(--dur-fast);
  box-shadow: 0 8px 24px rgba(8, 112, 202, 0.32);
  cursor: pointer;
  border: 0;
}

.scroll-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--c-brand-deep);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(8, 112, 202, 0.4);
}

.scroll-top:active {
  transform: translateY(-1px) scale(0.96);
}

@media (max-width: 640px) {
  .scroll-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}


/* ----- 17. Forms ----- */
.form-shell {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: clamp(24px, 4vw, 48px);
}

.form-row {
  margin-bottom: 24px;
}

.form-row.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row.two-col {
    grid-template-columns: 1fr;
  }
}

.form-row label {
  display: block;
  font-size: var(--fs-body-s);
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--c-ink);
}

.form-row label .req {
  color: var(--c-error);
  margin-left: 4px;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-md);
  background: #fff;
  font-size: var(--fs-body);
  transition: border-color var(--dur-fast) var(--ease-snap), box-shadow var(--dur-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 0;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px var(--c-brand-soft);
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: var(--fs-body-s);
  color: var(--c-ink-2);
}

.form-checkbox input {
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.form-checkbox a {
  color: var(--c-brand);
  text-decoration: underline;
}

.form-actions {
  margin-top: 32px;
}

.form-actions .btn {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
}

.form-note {
  font-size: var(--fs-meta);
  color: var(--c-ink-3);
  margin-bottom: 24px;
  padding: 16px;
  background: var(--c-surface);
  border-radius: var(--r-md);
  border-left: 3px solid var(--c-brand);
}

/* Whitepaper layout */

/* ----- 18. Page hero (sub-page intro band) ----- */
.page-hero {
  background: linear-gradient(180deg, var(--c-hero-bg) 0%, var(--c-hero-bg-2) 100%);
  color: #fff;
  padding: clamp(140px, 16vw, 200px) 0 clamp(64px, 9vw, 96px);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(77, 208, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 208, 255, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at center, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at center, #000 0%, transparent 75%);
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.page-hero .eyebrow {
  color: var(--c-accent-cyan);
  margin-bottom: 24px;
}

.page-hero h1 {
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  color: #fff;
}

.page-hero p {
  font-size: var(--fs-body-l);
  color: rgba(255, 255, 255, 0.82);
  max-width: 64ch;
  margin: 0 auto;
  line-height: 1.75;
}

/* ----- 19. Misc utility ----- */
.flex {
  display: flex;
}

.section-cta {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 640ms var(--ease-out), transform 640ms var(--ease-out);
}

.reveal-stagger>* {
  opacity: 1;
  transform: none;
  transition: opacity 480ms var(--ease-out), transform 480ms var(--ease-out);
}

.js-reveals .reveal:not(.is-visible) {
  opacity: 0;
  transform: translateY(24px);
}

.js-reveals .reveal-stagger:not(.is-visible)>* {
  opacity: 0;
  transform: translateY(16px);
}

.reveal-stagger.is-visible>*:nth-child(1) {
  transition-delay: 0ms;
}

.reveal-stagger.is-visible>*:nth-child(2) {
  transition-delay: 80ms;
}

.reveal-stagger.is-visible>*:nth-child(3) {
  transition-delay: 160ms;
}

.reveal-stagger.is-visible>*:nth-child(4) {
  transition-delay: 240ms;
}

.reveal-stagger.is-visible>*:nth-child(5) {
  transition-delay: 320ms;
}

.reveal-stagger.is-visible>*:nth-child(6) {
  transition-delay: 400ms;
}

.case-detail__approach-image {
  margin: 24px 0 0;
  background: var(--c-surface);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 0 rgba(11, 20, 32, 0.04), 0 4px 16px -8px rgba(11, 20, 32, 0.10);
}

.case-detail__approach-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal,
  .reveal-stagger>* {
    opacity: 1;
    transform: none;
  }

  .hero__marquee-track {
    animation: none;
  }
}

#clients {
  background: #F8F7F3;
  
  --client-base: clamp(12px, 1.55vw, 17.07px);
}

#clients .clients__heading {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  flex-wrap: nowrap;
  gap: calc(var(--client-base) * 1.88);
  margin-bottom: calc(var(--client-base) * 3.28);
}

#clients .clients__heading-text { flex-shrink: 0; }
#clients .clients__stat-block { flex-shrink: 1; min-width: 0; }

#clients .clients__heading-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: calc(var(--client-base) * 0.82);     
}

#clients .section-title {
  font-family: 'Quicksand', var(--font-display);
  color: #0B1420;
  font-size: calc(var(--client-base) * 3.05);  
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
  line-height: 1;
  text-transform: uppercase;
}

#clients .clients__subtitle {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  color: #4A5568;
  font-size: var(--client-base);            
  font-weight: 700;
  letter-spacing: 0.04em;
}

#clients .clients__stat-block {
  display: flex;
  align-items: baseline;
  gap: calc(var(--client-base) * 0.94);
  flex-wrap: wrap;
}

#clients .client-stat__caption {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  color: #4A5568;
  font-size: var(--client-base);
  font-weight: 700;
  letter-spacing: 0.04em;
  position: relative;
  top: -0.6em;
}

#clients .client-stat {
  display: flex;
  align-items: baseline;
  gap: calc(var(--client-base) * 0.59);
  margin-bottom: 0;
  flex-wrap: wrap;
}

#clients .client-stat .num {
  font-family: 'Quicksand', var(--font-en);
  color: #0870CA;
  font-size: calc(var(--client-base) * 3.28);
  font-weight: 700;
  line-height: 1;
}

#clients .client-stat .label {
  font-family: 'Quicksand', var(--font-jp), var(--font-en);
  color: #0870CA;
  font-size: calc(var(--client-base) * 2.34);
  font-weight: 700;
  line-height: 1;
  position: relative;
  top: -0.0975em;
}

#clients .client-stat__note {
  flex-basis: 100%;
  text-align: right;
  font-family: var(--font-jp), var(--font-en);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--c-ink-3);
  margin-top: -15px;
  margin-left: -15px;
}

@media (max-width: 400px) {
  #clients {
    --client-base: clamp(8px, 2.5vw, 11px);
  }
}
@media (min-width: 1024px) {
  html[lang="ja"] #cases .section-lead {
    max-width: none;
    white-space: nowrap;
  }
}
@media (min-width: 1280px) {
  html[lang="en"] #cases .section-lead {
    max-width: none;
    white-space: nowrap;
  }
}


.legal {
  max-width: 880px;
  margin: 0 auto;
  font-size: var(--fs-body);
  color: var(--c-ink-2);
  line-height: 1.85;
}

.legal .legal__heading {
  font-family: 'Quicksand', var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-ink);
  margin: 40px 0 16px;
  letter-spacing: -0.005em;
}

.legal .legal__heading:first-child { margin-top: 0; }

.legal p { margin: 0 0 16px; }

.legal .legal__list {
  margin: 0 0 20px;
  padding-left: 1.5em;
}

.legal .legal__list li {
  margin: 6px 0;
}

.legal .legal__meta {
  margin-top: 40px;
  color: var(--c-ink-3);
  font-size: var(--fs-meta);
}

.case-detail__hero-intro {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 60ch;
}

.dx2__tool-tip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 180px;
  max-width: 260px;
  padding: 8px 12px;
  background: #0B1420;
  color: #fff;
  font-size: 0.75rem;
  line-height: 1.5;
  letter-spacing: 0;
  text-align: center;
  border-radius: 6px;
  box-shadow: 0 6px 20px -4px rgba(11, 20, 32, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 10;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.dx2__tool-tip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: #0B1420;
}

.dx2__tool:hover .dx2__tool-tip,
.dx2__tool:focus-within .dx2__tool-tip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}