:root {
    --color-text-primary: #282828;
    --color-border-muted: #f42222;
    --color-border-strong: #ffffff;
    --color-text-inverse: #0000ee;
    --color-surface-base: #000000;
    --font-family-primary: "Zen Kaku Gothic New", sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.8;
    --space-2: 7.11px;
    --space-3: 12.44px;
    --space-4: 13.33px;
    --space-5: 17px;
    --space-6: 17.78px;
    --space-7: 19.56px;
    --space-8: 21.33px;
    --radius-sm: 3.56px;
    --radius-md: 5.33px;
    --radius-lg: 7.11px;
    --radius-xl: 8.89px;
    --radius-pill: 9999px;
    --motion-fast: 400ms;
    --motion-normal: 700ms;
    --container: min(1200px, 92vw);

    --bg-base: #f9fafc;
    --bg-panel: #ffffff;
    --bg-soft: #f3f5f8;
    --bg-white: #ffffff;
    --text-on-dark: #1e232b;
    --text-on-dark-sub: #5f6775;
    --line-dark: rgba(0, 0, 0, 0.12);
    --line-light: rgba(0, 0, 0, 0.12);
    --focus-ring: rgba(0, 0, 238, 0.44);

    /* Lucide（MIT）— Icon Stack 経由で取得した SVG と同一形状 */
    --icon-arrow-right: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M5%2012h14%22%2F%3E%3Cpath%20d%3D%22m12%205%207%207-7%207%22%2F%3E%3C%2Fsvg%3E");
    --icon-chevron-right: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22m9%2018%206-6-6-6%22%2F%3E%3C%2Fsvg%3E");
    --icon-chevron-down: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22m6%209%206%206%206-6%22%2F%3E%3C%2Fsvg%3E");
  }

  .icon-svg {
    display: block;
    flex-shrink: 0;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-on-dark);
    background:
      radial-gradient(circle at 10% 0%, rgba(244, 34, 34, 0.08), transparent 34%),
      radial-gradient(circle at 90% 8%, rgba(0, 0, 238, 0.035), transparent 25%),
      repeating-linear-gradient(-38deg, rgba(0, 0, 0, 0.015), rgba(0, 0, 0, 0.015) 1px, transparent 1px, transparent 36px),
      var(--bg-base);
    overflow-x: hidden;
  }

  a,
  button {
    transition:
      background-color var(--motion-fast) ease,
      border-color var(--motion-fast) ease,
      color var(--motion-fast) ease,
      transform var(--motion-fast) ease,
      box-shadow var(--motion-fast) ease;
  }

  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 3px;
  }

  .container {
    width: var(--container);
    margin-inline: auto;
  }

  .site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.93);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }

  .header-inner {
    width: var(--container);
    margin-inline: auto;
    min-height: 88px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-7);
  }

  .header-logo {
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    text-decoration: none;
  }

  .header-logo img {
    display: block;
    width: auto;
    height: 48px;
    max-width: min(42vw, 280px);
  }

  .header-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
  }

  .header-nav a {
    color: #1f2430;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
  }

  .header-nav a:hover,
  .header-nav a:focus-visible {
    background: rgba(0, 0, 0, 0.08);
  }

  .header-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border-radius: 6px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 0;
    border: none;
  }

  .header-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #1f2430;
    transition: transform 240ms ease, opacity 240ms ease;
  }

  .site-header.is-open .header-toggle span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .site-header.is-open .header-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-open .header-toggle span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .header-cta {
    color: var(--color-border-strong);
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    background: var(--color-border-muted);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    padding: 12px 24px;
    white-space: nowrap;
  }

  .header-cta:hover,
  .header-cta:focus-visible {
    background: #c81d1d;
    border-color: var(--color-border-strong);
  }

  .hero {
    padding-top: 88px;
    min-height: 0;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line-dark);
  }

  .hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
  }

  .hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: saturate(0.95) contrast(1.05) brightness(0.9);
    opacity: 0;
    transition: opacity 900ms ease;
    pointer-events: none;
  }

  .hero-video.is-active {
    opacity: 1;
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, rgba(8, 10, 14, 0.72) 0%, rgba(8, 10, 14, 0.58) 38%, rgba(8, 10, 14, 0.28) 68%, rgba(8, 10, 14, 0.22) 100%);
    z-index: 1;
    pointer-events: none;
  }

  .hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    min-height: calc(100svh - 88px);
  }

  .hero-copy {
    padding: 56px 52px 52px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero-copy h1 {
    color: #ffffff;
    font-size: clamp(36px, 5vw, 62px);
    line-height: 1.2;
    letter-spacing: .02em;
    margin-bottom: 14px;
    text-shadow: 0 6px 22px rgba(0, 0, 0, 0.45);
  }

  .hero-copy h1 em {
    display: inline;
    color: var(--color-border-muted);
    font-style: normal;
    font-size: 1.08em;
    line-height: 1.05;
  }

  .hero-title-bg {
    display: inline-block;
    width: fit-content;
    background: #ffffff;
    color: #1f2430 !important;
    text-shadow: none !important;
    padding: 8px 16px;
    margin-bottom: 12px;
  }

  .hero-catch-bg {
    display: inline-block;
    width: fit-content;
    background: #ffffff;
    color: #1f2430 !important;
    text-shadow: none !important;
    padding: 6px 12px;
    margin-bottom: 12px;
  }

  .hero-copy .hero-catch {
    color: rgba(255, 255, 255, 0.94);
    font-size: clamp(30px, 3.4vw, 42px);
    font-weight: 700;
    margin-bottom: 14px;
    text-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
  }

  .hero-copy p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.86);
    margin-bottom: 28px;
    text-shadow: 0 3px 12px rgba(0, 0, 0, 0.35);
  }

  .hero-copy .hero-text {
    font-size: 16px;
    line-height: 1.9;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
  }

  .btn-primary,
  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 26px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: .05em;
    border-radius: var(--radius-sm);
  }

  .btn-primary {
    background: var(--color-border-muted);
    border: 1px solid var(--color-border-muted);
    color: var(--color-border-strong);
  }

  .btn-primary::after {
    content: "";
    width: 1.15em;
    height: 1.15em;
    margin-left: 12px;
    background-color: currentColor;
    mask: var(--icon-arrow-right) center / contain no-repeat;
    -webkit-mask: var(--icon-arrow-right) center / contain no-repeat;
  }

  .btn-primary:hover,
  .btn-primary:focus-visible {
    background: #bf1f1f;
    border-color: var(--color-border-strong);
    transform: translateY(-2px);
  }

  .hero .btn-secondary {
    border: 1px solid rgba(0, 0, 0, 0.24);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.85);
    background: rgba(0, 0, 0, 0.22);
  }

  .hero .btn-secondary:hover,
  .hero .btn-secondary:focus-visible {
    background: rgba(255, 255, 255, 0.15);
  }

  .about {
    padding: 40px 0;
    border-bottom: 1px solid var(--line-dark);
    background: linear-gradient(180deg, rgba(255,255,255,0.95) 0%, rgba(245,247,250,0.9) 100%);
  }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: stretch;
  }

  .about-copy h2 {
    font-size: clamp(30px, 3.6vw, 44px);
    line-height: 1.3;
    margin: 10px 0 18px;
  }

  .section-tag {
    color: var(--color-border-muted);
    font-size: 14px;
    letter-spacing: .08em;
    font-weight: 700;
  }

  .section-sub {
    color: var(--text-on-dark-sub);
    font-size: 16px;
  }

  .about-copy p {
    color: var(--text-on-dark-sub);
    font-size: 16px;
    margin: 0 0 16px;
  }

  .about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .stat-card {
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: var(--radius-xl);
    background: #ffffff;
    padding: 24px 20px 22px;
    text-align: center;
  }

  .stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    line-height: 0;
    min-height: clamp(88px, 22vw, 120px);
  }

  .stat-icon-img {
    width: clamp(88px, 22vw, 120px);
    height: clamp(88px, 22vw, 120px);
    object-fit: contain;
    display: block;
  }

  .stat-card .num {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.08em 0.12em;
    font-size: clamp(48px, 7vw, 80px);
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 4px;
  }

  .stat-card .num .num-unit {
    font-size: clamp(13px, 2.5vw, 18px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    color: inherit;
    transform: translateY(-0.06em);
  }

  .stat-card .num .stat-odometer.odometer {
    display: inline-block;
    vertical-align: baseline;
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
    color: inherit;
  }

  .stat-card .num .stat-odometer.odometer .odometer-value {
    text-align: center;
  }

  .stat-card .title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--color-border-muted);
  }

  .stat-card .desc {
    color: var(--text-on-dark-sub);
    font-size: 15px;
    line-height: 1.7;
  }

  section {
    padding: 44px 0;
  }

  .section-head {
    margin-bottom: 24px;
  }

  .section-head h2 {
    font-size: clamp(30px, 3.4vw, 42px);
    line-height: 1.3;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .section-head h2::after {
    content: "";
    display: block;
    height: 2px;
    flex: 1;
    background: linear-gradient(90deg, var(--color-border-muted), transparent);
  }

  .service {
    border-bottom: 1px solid var(--line-dark);
  }

  .service-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .service-card {
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #ffffff;
    min-width: 0;
  }

  .service-photo {
    position: relative;
    overflow: hidden;
    background: #e8eaef;
    line-height: 0;
  }

  .service-photo-img {
    width: 100%;
    height: auto;
    display: block;
    vertical-align: top;
    position: relative;
    z-index: 0;
  }

  .service-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-pill);
    background: var(--color-border-muted);
    color: var(--color-border-strong);
    display: grid;
    place-items: center;
    position: absolute;
    left: 16px;
    bottom: 16px;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.32);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  }

  .service-icon .icon-svg {
    width: 24px;
    height: 24px;
  }

  .service-body {
    padding: 20px 16px 18px;
  }

  .service-body h3 {
    font-size: 32px;
    margin-bottom: 8px;
  }

  .service-body p {
    color: var(--text-on-dark-sub);
    font-size: 16px;
    margin-bottom: 10px;
  }

  .service-link {
    text-decoration: none;
    color: #1f2430;
    font-size: 15px;
    font-weight: 700;
  }

  .service-link::after {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    margin-left: 9px;
    vertical-align: -0.15em;
    background-color: currentColor;
    mask: var(--icon-arrow-right) center / contain no-repeat;
    -webkit-mask: var(--icon-arrow-right) center / contain no-repeat;
  }

  .flow {
    background: #fff8f1;
    border-bottom: 1px solid var(--line-dark);
  }

  .flow-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
    position: relative;
    --flow-icon-size: clamp(120px, 17vw, 200px);
  }

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

  .flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    right: -14px;
    top: calc(var(--flow-icon-size) * 0.45);
    width: 28px;
    height: 28px;
    background-color: var(--color-border-muted);
    mask: var(--icon-chevron-right) center / contain no-repeat;
    -webkit-mask: var(--icon-chevron-right) center / contain no-repeat;
  }

  .flow-icon {
    width: var(--flow-icon-size);
    height: var(--flow-icon-size);
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin: 0 auto 14px;
    overflow: hidden;
  }

  .flow-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }

  .flow-step h3 {
    font-size: 28px;
    margin-bottom: 5px;
  }

  .flow-step p {
    color: var(--text-on-dark-sub);
    font-size: 14px;
    line-height: 1.65;
    min-height: 72px;
  }

  .flow-tag {
    margin-top: 6px;
    display: inline-block;
    background: var(--color-border-muted);
    color: var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 2px 10px;
    font-size: 13px;
    font-weight: 700;
  }

  .voice {
    border-bottom: 1px solid var(--line-dark);
  }

  .voice-carousel {
    width: 100%;
  }

  .voice-carousel-viewport {
    width: 100%;
  }

  .voice-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .voice-card {
    background: #ffffff;
    color: #181818;
    border-radius: var(--radius-md);
    border: 1px solid var(--line-light);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 18px 16px 20px;
  }

  .voice-thumb {
    width: 100%;
    height: clamp(110px, 16vw, 168px);
    border-radius: var(--radius-sm);
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
  }

  .voice-thumb.one { background-image: url("./assets/voice01.png"); }
  .voice-thumb.two { background-image: url("./assets/voice02.png"); }
  .voice-thumb.three { background-image: url("./assets/voice03.png"); }

  .voice-stars {
    display: flex;
    align-items: center;
    gap: 3px;
    margin-bottom: 2px;
    color: #b81616;
  }

  .voice-star {
    width: 15px;
    height: 15px;
  }

  .voice-text {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 4px;
  }

  .voice-name {
    font-size: 13px;
    color: #3b3b3b;
  }

  .faq {
    border-bottom: 1px solid var(--line-dark);
  }

  .faq-list {
    border: 1px solid rgba(0, 0, 0, 0.16);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }

  .faq-item + .faq-item {
    border-top: 1px solid rgba(0, 0, 0, 0.12);
  }

  .faq-q {
    width: 100%;
    border: 0;
    background: #ffffff;
    color: #1f2430;
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 18px 20px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
  }

  .faq-q:hover,
  .faq-q:focus-visible {
    background: rgba(0, 0, 0, 0.04);
  }

  .faq-q-mark {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-pill);
    background: var(--color-border-muted);
    color: var(--color-border-strong);
    display: grid;
    place-items: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
  }

  .faq-q-toggle {
    margin-left: auto;
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    align-self: center;
    color: var(--color-border-muted);
  }

  .faq-q-toggle .faq-icon {
    grid-area: 1 / 1;
    width: 22px;
    height: 22px;
  }

  .faq-icon--minus {
    display: none;
  }

  .faq-item.open .faq-icon--plus {
    display: none;
  }

  .faq-item.open .faq-icon--minus {
    display: block;
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    color: var(--text-on-dark-sub);
    font-size: 14px;
    padding: 0 20px 0 58px;
    transition: max-height var(--motion-normal) ease, padding var(--motion-normal) ease;
  }

  .faq-item.open .faq-a {
    max-height: 240px;
    padding: 0 20px 18px 58px;
  }

  .contact {
    background:
      radial-gradient(circle at 14% 10%, rgba(244, 34, 34, 0.1), transparent 38%),
      linear-gradient(90deg, #f7f8fb 0%, #eef2f7 100%);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  }

  .contact-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr auto;
    gap: 18px;
    align-items: center;
    padding: 34px 0;
  }

  .contact h2 {
    font-size: clamp(30px, 3.2vw, 42px);
    line-height: 1.35;
    margin-bottom: 6px;
  }

  .contact p {
    color: var(--text-on-dark-sub);
    font-size: 15px;
  }

  .contact-tel {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    color: #1f2430;
    text-decoration: none;
    font-size: clamp(30px, 3.4vw, 42px);
    font-weight: 700;
    line-height: 1.2;
  }

  .contact-tel .icon-svg {
    width: 0.85em;
    height: 0.85em;
  }

  .contact-tel:hover,
  .contact-tel:focus-visible {
    color: #b51d1d;
  }

  .contact-col {
    border-left: 1px solid rgba(0, 0, 0, 0.14);
    padding-left: 22px;
  }

  .contact-col .label {
    font-size: 15px;
    margin-bottom: 6px;
    color: #1f2430;
  }

  .contact-col p,
  .contact-col a {
    font-size: 14px;
    color: var(--text-on-dark-sub);
    text-decoration: none;
  }

  .contact-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 0 24px;
    background: var(--color-border-muted);
    color: var(--color-border-strong);
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-muted);
    white-space: nowrap;
  }

  .contact-cta::after {
    content: "";
    width: 1.1em;
    height: 1.1em;
    margin-left: 12px;
    background-color: currentColor;
    mask: var(--icon-arrow-right) center / contain no-repeat;
    -webkit-mask: var(--icon-arrow-right) center / contain no-repeat;
  }

  .contact-cta:hover,
  .contact-cta:focus-visible {
    background: #bf1d1d;
    border-color: var(--color-border-strong);
  }

  .site-footer {
    padding: 18px 0 28px;
    background: #ffffff;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
  }

  .footer-inner {
    width: var(--container);
    margin-inline: auto;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 16px;
    align-items: center;
  }

  .footer-brand {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    text-decoration: none;
  }

  .footer-brand img {
    display: block;
    width: auto;
    height: 52px;
    max-width: min(70vw, 300px);
  }

  .footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
    font-size: 14px;
  }

  .footer-nav a {
    color: #2e3643;
    text-decoration: none;
  }

  .copy {
    margin-top: 8px;
    text-align: center;
    color: rgba(27, 31, 39, 0.58);
    font-size: 12px;
  }

  @media (max-width: 1200px) {
    .header-inner {
      grid-template-columns: 1fr;
      padding: 12px 0;
      min-height: auto;
      gap: 6px;
    }

    .header-logo,
    .header-nav {
      justify-self: center;
      text-align: center;
    }

    .header-logo img {
      height: 42px;
    }

    .header-cta {
      justify-self: center;
    }

    .hero {
      padding-top: 168px;
      min-height: 0;
    }

    .hero-grid,
    .contact-grid {
      grid-template-columns: 1fr;
    }

    .hero-grid {
      min-height: calc(100svh - 168px);
    }

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

    .flow-list {
      grid-template-columns: 1fr;
      gap: 20px;
      --flow-icon-size: clamp(200px, 72vw, 320px);
    }

    .flow-step:not(:last-child)::after {
      right: auto;
      left: 50%;
      transform: translateX(-50%);
      top: auto;
      bottom: -28px;
      width: 28px;
      height: 28px;
      mask: var(--icon-chevron-down) center / contain no-repeat;
      -webkit-mask: var(--icon-chevron-down) center / contain no-repeat;
    }

    .contact-col {
      border-left: 0;
      padding-left: 0;
    }

    .footer-inner {
      grid-template-columns: 1fr;
      text-align: center;
    }

    .footer-nav {
      justify-content: center;
    }

    .footer-brand {
      justify-self: center;
    }
  }

  @media (max-width: 768px) {
    .header-inner {
      grid-template-columns: 1fr auto;
      min-height: 76px;
      gap: 10px;
    }

    .header-logo {
      justify-self: start;
    }

    .header-logo img {
      height: 36px;
      max-width: min(62vw, 240px);
    }

    .header-toggle {
      display: inline-flex;
    }

    .header-cta {
      display: none;
    }

    .header-nav {
      position: absolute;
      top: calc(100% + 6px);
      left: 0;
      right: 0;
      display: flex;
      flex-direction: column;
      gap: 4px;
      padding: 10px;
      background: rgba(255, 255, 255, 0.97);
      border: 1px solid rgba(0, 0, 0, 0.12);
      border-radius: 10px;
      box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14);
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      transform: translateY(-8px);
      transition: opacity 220ms ease, transform 220ms ease, visibility 220ms ease;
      z-index: 5;
    }

    .site-header.is-open .header-nav {
      opacity: 1;
      visibility: visible;
      pointer-events: auto;
      transform: translateY(0);
    }

    .header-nav a {
      display: block;
      font-size: 15px;
      padding: 12px 14px;
    }

    .hero {
      padding-top: 76px;
      min-height: 0;
    }

    .hero-grid {
      min-height: calc(100svh - 76px);
      place-items: center;
      align-content: center;
    }

    .hero-copy {
      padding: 44px 20px 34px;
      text-align: center;
      align-items: center;
    }

    .hero-copy h1 {
      font-size: 24px;
      margin-bottom: 10px;
    }

    .hero-copy h1 em {
      font-size: 1.1em;
    }

    .hero-copy .hero-catch {
      font-size: 18px;
      margin-bottom: 10px;
    }

    .hero-title-bg,
    .hero-catch-bg {
      padding: 6px 10px;
      margin-bottom: 8px;
    }

    .hero-text {
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 20px;
      text-align: left;
      max-width: 320px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      justify-content: center;
    }

    .about,
    .service,
    .flow,
    .voice,
    .faq,
    .contact {
      padding-left: 20px;
      padding-right: 20px;
    }

    .page-main {
      padding-left: 20px;
      padding-right: 20px;
    }

    .btn-primary,
    .btn-secondary {
      width: 100%;
    }

    .about-stats {
      grid-template-columns: 1fr;
    }

    .voice-carousel-viewport {
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      scroll-behavior: smooth;
      overscroll-behavior-x: contain;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      width: 100%;
      box-sizing: border-box;
    }

    .voice-carousel-viewport::-webkit-scrollbar {
      display: none;
    }

    .voice-carousel-viewport .voice-grid {
      display: flex;
      flex-direction: row;
      flex-wrap: nowrap;
      align-items: stretch;
      gap: 12px;
      width: max-content;
      min-height: 0;
    }

    .voice-carousel-viewport .voice-card {
      flex: 0 0 var(--voice-slide-w, 100%);
      width: var(--voice-slide-w, 100%);
      max-width: var(--voice-slide-w, 100%);
      scroll-snap-align: start;
      scroll-snap-stop: normal;
      box-sizing: border-box;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation: none !important;
      transition-duration: 1ms !important;
      scroll-behavior: auto !important;
    }
  }

  .page-main {
    padding-top: 120px;
    padding-bottom: 48px;
  }

  .page-hero {
    max-width: 720px;
    margin-inline: auto;
    margin-bottom: 36px;
    text-align: center;
  }

  .page-hero h1 {
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.35;
    margin-bottom: 12px;
    color: #1f2430;
  }

  .page-hero p {
    color: var(--text-on-dark-sub);
    font-size: 16px;
    line-height: 1.75;
  }

  .contact-form-card {
    max-width: min(640px, 100%);
    margin-inline: auto;
    background: var(--bg-panel);
    border: 1px solid var(--line-light);
    border-radius: var(--radius-lg);
    padding: 28px 26px 32px;
    box-shadow: 0 6px 28px rgba(0, 0, 0, 0.06);
  }

  .contact-form-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1f2430;
  }

  .contact-form-lead {
    font-size: 14px;
    color: var(--text-on-dark-sub);
    margin-bottom: 22px;
    line-height: 1.65;
  }

  .contact-form .form-row {
    margin-bottom: 18px;
  }

  .contact-form .form-row label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1f2430;
  }

  .form-required {
    display: inline-block;
    margin-left: 6px;
    font-size: 11px;
    font-weight: 700;
    color: var(--color-border-muted);
    vertical-align: 0.08em;
  }

  .contact-form .form-row input,
  .contact-form .form-row textarea,
  .contact-form .form-row select {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 0, 0, 0.18);
    font-family: inherit;
    font-size: 15px;
    color: var(--text-on-dark);
    background: #fff;
  }

  .contact-form .form-row textarea {
    min-height: 150px;
    resize: vertical;
    line-height: 1.6;
  }

  .contact-form .form-row input:focus-visible,
  .contact-form .form-row textarea:focus-visible,
  .contact-form .form-row select:focus-visible {
    border-color: var(--color-text-inverse);
    outline: none;
    box-shadow: 0 0 0 3px var(--focus-ring);
  }

  .form-check {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin: 4px 0 22px;
    font-size: 14px;
    line-height: 1.55;
    color: var(--text-on-dark-sub);
    cursor: pointer;
  }

  .form-check input {
    margin-top: 4px;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    accent-color: var(--color-border-muted);
  }

  .form-check a {
    color: var(--color-text-inverse);
    text-decoration: underline;
    text-underline-offset: 2px;
  }

  .form-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 28px;
    width: 100%;
    max-width: 100%;
    background: var(--color-border-muted);
    color: var(--color-border-strong);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
  }

  .form-submit:hover,
  .form-submit:focus-visible {
    background: #bf1d1d;
    border-color: #bf1d1d;
  }

  .legal {
    max-width: 800px;
    padding-bottom: 24px;
  }

  .legal > h2 {
    font-size: 19px;
    font-weight: 700;
    margin: 32px 0 12px;
    color: #1f2430;
    line-height: 1.4;
  }

  .legal > h2:first-of-type {
    margin-top: 0;
  }

  .legal p,
  .legal li {
    font-size: 15px;
    color: var(--text-on-dark-sub);
    line-height: 1.75;
  }

  .legal p {
    margin-bottom: 12px;
  }

  .legal ul {
    padding-left: 1.25em;
    margin: 0 0 14px;
  }

  .legal li {
    margin-bottom: 8px;
  }

  .legal a {
    color: var(--color-text-inverse);
    text-decoration: none;
  }

  .legal a:hover,
  .legal a:focus-visible {
    text-decoration: underline;
  }

  .legal-updated {
    margin-top: 36px;
    font-size: 14px;
    color: var(--text-on-dark-sub);
  }