:root {
    color-scheme: light;

    /* ── Brand Primary ── */
    --color-primary: #dc4a3f;
    --color-primary-dark: #c93d33;
    --color-primary-light: #e76e66;
    --color-primary-50: #fef2f1;
    --color-primary-100: #fde3e1;
    --color-primary-200: #f9b8b4;
    --color-primary-500: #dc4a3f;
    --color-primary-600: #c93d33;
    --color-primary-700: #b83328;
    --color-primary-rgb: 220, 74, 63;

    /* ── Neutrals ── */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* ── Semantic ── */
    --color-success: #059669;
    --color-success-bg: #ecfdf5;
    --color-danger: #dc2626;
    --color-danger-bg: #fef2f2;

    /* ── Typography ── */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    --line-height-tight: 1.15;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    --letter-spacing-tight: -0.03em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.02em;

    /* ── Radius ── */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* ── Shadows ── */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-xl: 0 8px 30px rgba(15, 23, 42, 0.10);

    /* ── Spacing ── */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* ── Layout ── */
    --max-width: 1200px;
    --header-height: 64px;
}

/* ══════════════════════════════════════════
       RESET & BASE
       ══════════════════════════════════════════ */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    .home-landing-page {
      font-family: var(--font-sans);
      font-size: var(--font-size-base);
      line-height: var(--line-height-normal);
      color: var(--color-gray-800);
      background-color: var(--color-white);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      height: auto;
      min-height: 100vh;
      overflow-x: hidden;
      overflow-y: auto;
    }

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

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

    /* ── Container ── */
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 var(--space-6);
    }

    /* ══════════════════════════════════════════
       HERO
       ══════════════════════════════════════════ */
    .home-landing-page .hero {
      box-sizing: border-box;
      position: relative;
      height: calc(100svh - 96px);
      min-height: calc(100svh - 96px);
      display: grid;
      place-items: center;
      padding: 0;
      background: #ffffff;
    }

    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      width: 100%;
    }

    /* title is the layout anchor; label stays fixed; only icons move above label */
    .hero-title-stack {
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    /* keep 「多模型驱动」 where it was (above icons under old layout) */
    /* icon marquee — above title (position unchanged) */
    .hero-models {
      position: absolute;
      left: 50%;
      bottom: calc(100% + 120px);
      transform: translateX(-50%);
      width: min(420px, 78vw);
      overflow: hidden;
      -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 14%, #000 86%, transparent 100%);
      mask-image: linear-gradient(90deg, transparent 0%, #000 14%, #000 86%, transparent 100%);
      pointer-events: none;
    }

    .hero-models-track {
      display: flex;
      width: max-content;
      animation: hero-models-marquee 28s linear infinite;
    }

    .hero-models-group {
      display: flex;
      align-items: center;
      gap: 14px;
      padding-right: 14px;
    }

    .hero-model {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #fff;
      border: 1px solid rgba(0, 0, 0, 0.08);
      box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .hero-model img {
      display: block;
      width: 22px;
      height: 22px;
      object-fit: contain;
    }

    @keyframes hero-models-marquee {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    .hero h1 {
      position: relative;
      font-size: clamp(3rem, 6vw, 5rem);
      font-weight: 700;
      color: #0a0a0a;
      line-height: 1.05;
      letter-spacing: -0.04em;
      margin: 0 0 24px;
      animation: hero-title-in 0.7s ease both;
    }

    .hero-accent {
      color: var(--color-primary);
    }

    /* one shine pass over the whole title */
    .hero h1::after {
      content: attr(data-shine);
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      font: inherit;
      letter-spacing: inherit;
      line-height: inherit;
      text-align: center;
      white-space: nowrap;
      pointer-events: none;
      background-image: linear-gradient(
        100deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0) 40%,
        rgba(255, 255, 255, 0.18) 45%,
        rgba(255, 255, 255, 0.42) 48%,
        rgba(255, 255, 255, 0.72) 50%,
        rgba(255, 255, 255, 0.42) 52%,
        rgba(255, 255, 255, 0.18) 55%,
        rgba(255, 255, 255, 0) 60%,
        rgba(255, 255, 255, 0) 100%
      );
      background-size: 420% 100%;
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      -webkit-text-fill-color: transparent;
      animation: hero-title-shine 5.5s linear infinite;
    }

    @keyframes hero-title-in {
      from {
        opacity: 0;
        transform: translateY(10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @keyframes hero-title-shine {
      0% { background-position: 120% 50%; }
      100% { background-position: -20% 50%; }
    }

    @media (prefers-reduced-motion: reduce) {
      .hero h1,
      .hero h1::after,
      .hero-models-track,
      .sc-card {
        animation: none;
      }

      .hero h1::after {
        content: none;
      }
    }

    .hero-subtitle {
      font-size: clamp(1.1rem, 1.5vw, 1.35rem);
      color: #666;
      max-width: 600px;
      line-height: 1.7;
      margin-bottom: 40px;
    }

    .hero-cta {
      margin-bottom: 0;
    }

    /* pinned to hero bottom — marquee like model icons */
    .hero-platforms {
      position: absolute;
      left: 50%;
      bottom: 54px;
      transform: translateX(-50%);
      width: min(920px, calc(100% - 40px));
      overflow: hidden;
      pointer-events: none;
      -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
      mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
    }

    .hero-platforms-track {
      display: flex;
      width: max-content;
      animation: hero-platforms-marquee 40s linear infinite;
    }

    .hero-platforms-group {
      display: flex;
      align-items: center;
      gap: 36px;
      padding-right: 36px;
    }

    .hero-platform {
      width: auto;
      height: 32px;
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .hero-platform-logo {
      display: block;
      height: 22px;
      width: auto;
      max-width: none;
      object-fit: contain;
      opacity: 0.82;
    }

    @keyframes hero-platforms-marquee {
      from { transform: translateX(0); }
      to { transform: translateX(-50%); }
    }

    /* ── Shared CTA Button ── */
    .cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 16px 40px;
      border-radius: 100px;
      background: var(--color-primary);
      color: #ffffff;
      font-size: 16px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .cta-btn:hover {
      background: var(--color-primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 8px 24px rgba(220, 74, 63, 0.25);
    }

    /* ══════════════════════════════════════════
       3. PRODUCT SHOWCASE — responsive canvas + % cards
       Logical units from scrapbook: W=14.8 H=12.6 (ignore TITLE text, keep its gap)
       ══════════════════════════════════════════ */
    .showcase {
      padding: 12px 0 60px;
    }

    .showcase-canvas {
      position: relative;
      width: min(1120px, calc(100% - 32px));
      aspect-ratio: 148 / 126;
      margin: 0 auto;
      /*
        Heroes are FIXED anchors — never derive hero position from small cards.
        Small cards are computed from heroes only.
      */
      --side-gap: 1.7%;
      --l1-w: 13.5%;
      --l2-w: 20.3%;
      --l4-w: 27.0%;
      --l4-h: 47.6%;
      --l4-left: 22.3%;
      --l4-top: 18%;
      --r3-left: 51.4%;
      --r3-top: calc(var(--l4-top) + var(--l4-h) / 3);
      --r1-h: 23.8%;
      --r1-top: calc(var(--r3-top) - var(--r1-h) - 2%);
      /* left satellites: right edge = hero left − side-gap */
      --l1-left: calc(var(--l4-left) - var(--side-gap) - var(--l1-w));
      --l2-left: calc(var(--l4-left) - var(--side-gap) - var(--l2-w));
      /* right satellites: left edge = hero right + side-gap */
      --r-side-left: calc(var(--r3-left) + var(--l4-w) + var(--side-gap));
    }

    .sc-card {
      position: absolute;
      border-radius: 14px;
      overflow: hidden;
      background: #ececec;
      box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
      animation: sc-float 5.6s ease-in-out infinite;
      animation-play-state: paused;
    }

    .showcase.is-inview .sc-card {
      animation-play-state: running;
      will-change: transform;
    }

    @keyframes sc-float {
      0%, 100% { transform: translate3d(0, 0, 0); }
      50% { transform: translate3d(0, -14px, 0); }
    }

    .sc-l1 { animation-duration: 4.6s; animation-delay: 0s; }
    .sc-l2 { animation-duration: 5.4s; animation-delay: -1.1s; }
    .sc-l3 { animation-duration: 4.9s; animation-delay: -2.4s; }
    .sc-l4 { animation-duration: 6.2s; animation-delay: -0.6s; }
    .sc-l5 { animation-duration: 5.1s; animation-delay: -3.2s; }
    .sc-r1 { animation-duration: 4.8s; animation-delay: -1.8s; }
    .sc-r2 { animation-duration: 5.6s; animation-delay: -0.3s; }
    .sc-r3 { animation-duration: 6.4s; animation-delay: -2.1s; }
    .sc-r4 { animation-duration: 5s; animation-delay: -2.8s; }
    .sc-r5 { animation-duration: 5.3s; animation-delay: -1.4s; }

    .sc-card img,
    .sc-card video {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
      pointer-events: none;
    }

    /* before / after mask slider */
    .sc-compare {
      pointer-events: auto;
      cursor: ew-resize;
      touch-action: none;
      user-select: none;
      --pos: 50%;
      z-index: 2;
    }

    .sc-compare-img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      pointer-events: none;
      display: block;
    }

    .sc-compare-after-wrap {
      position: absolute;
      inset: 0;
      overflow: hidden;
      clip-path: inset(0 calc(100% - var(--pos)) 0 0);
    }

    .sc-compare-handle {
      position: absolute;
      top: 0;
      bottom: 0;
      left: var(--pos);
      width: 0;
      transform: translateX(-50%);
      z-index: 2;
      pointer-events: none;
    }

    .sc-compare-line {
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      transform: translateX(-50%);
      background: rgba(255, 255, 255, 0.92);
      box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.12);
    }

    .sc-compare-knob {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 22px;
      height: 22px;
      transform: translate(-50%, -50%);
      border-radius: 50%;
      background: #fff;
      border: 1.5px solid rgba(0, 0, 0, 0.1);
      box-shadow: 0 2px 8px rgba(15, 23, 42, 0.18);
    }

    .sc-compare-knob::before,
    .sc-compare-knob::after {
      content: "";
      position: absolute;
      top: 50%;
      width: 0;
      height: 0;
      border-top: 3.5px solid transparent;
      border-bottom: 3.5px solid transparent;
      transform: translateY(-50%);
    }

    .sc-compare-knob::before {
      left: 5px;
      border-right: 4px solid #888;
    }

    .sc-compare-knob::after {
      right: 5px;
      border-left: 4px solid #888;
    }

    .sc-compare-range {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      margin: 0;
      opacity: 0;
      cursor: ew-resize;
      z-index: 3;
    }

    /* Left page — % mapped from inch layout */
    .sc-l1 { /* 2×2.75 — top flush with left hero; right edge keeps --side-gap */
      left: var(--l1-left);
      top: var(--l4-top);
      width: var(--l1-w);
      height: 21.8%;
    }
    .sc-l2 { /* 3×3 — bottom flush with left hero; same horizontal gap */
      left: var(--l2-left);
      top: calc(var(--l4-top) + var(--l4-h) - 23.8%);
      width: var(--l2-w);
      height: 23.8%;
    }
    .sc-l3 { /* 3×2 — top flush with l5; side-gap to l5 */
      left: calc(var(--l4-left) + var(--l4-w) - 20.3% - var(--side-gap) - 20.3%);
      top: calc(var(--l4-top) + var(--l4-h) + 2%);
      width: 20.3%;
      height: 15.9%;
    }
    .sc-l4 { /* 4×6 hero — FIXED anchor */
      left: var(--l4-left);
      top: var(--l4-top);
      width: var(--l4-w);
      height: var(--l4-h);
      border-radius: 16px;
      z-index: 1;
    }

    .sc-l4--scroll {
      pointer-events: auto;
    }

    .sc-scroll {
      width: 100%;
      height: 100%;
      overflow-x: hidden;
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      overscroll-behavior: contain;
    }

    .sc-scroll::-webkit-scrollbar {
      display: none;
      width: 0;
      height: 0;
    }

    .sc-scroll img {
      display: block;
      width: 100%;
      height: auto;
      object-fit: unset;
      pointer-events: none;
    }

    .sc-l5 { /* 3×3 under left hero — right edge flush with left hero; 2% gap */
      left: calc(var(--l4-left) + var(--l4-w) - 20.3%);
      top: calc(var(--l4-top) + var(--l4-h) + 2%);
      width: 20.3%;
      height: 23.8%;
    }

    /* Right page — same card set */
    .sc-r1 { /* 3×3 above right hero */
      left: var(--r3-left);
      top: var(--r1-top);
      width: 20.3%;
      height: var(--r1-h);
    }
    .sc-r2 { /* 3×2 — bottom flush with r1 */
      left: 73.3%;
      top: calc(var(--r1-top) + var(--r1-h) - 15.9%);
      width: 20.3%;
      height: 15.9%;
    }
    .sc-r3 { /* 4×6 video — FIXED */
      left: var(--r3-left);
      top: var(--r3-top);
      width: var(--l4-w);
      height: var(--l4-h);
      border-radius: 16px;
      z-index: 1;
    }
    .sc-r4 { /* 3×3 — top flush with right hero */
      left: var(--r-side-left);
      top: var(--r3-top);
      width: 20.3%;
      height: 23.8%;
    }
    .sc-r5 { /* 2×2.75 — bottom flush with right hero */
      left: var(--r-side-left);
      top: calc(var(--r3-top) + var(--l4-h) - 21.8%);
      width: 13.5%;
      height: 21.8%;
    }

    .showcase-inner {
      text-align: center;
    }

    .showcase-desc {
      margin-top: 28px;
      color: #888;
      font-size: 15px;
    }

    /* ══════════════════════════════════════════
       4. FEATURES
       ══════════════════════════════════════════ */
    .features {
      padding: 120px 0;
    }

    .features-title {
      font-size: 36px;
      font-weight: 600;
      color: #0a0a0a;
      text-align: center;
      margin-bottom: 60px;
      letter-spacing: -0.03em;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
      max-width: 1180px;
      margin: 0 auto;
      align-items: stretch;
    }

    a.feature-card {
      display: block;
      text-decoration: none;
      color: inherit;
    }

    .feature-card--v2 {
      display: flex;
      flex-direction: column;
      min-height: 100%;
      padding: 22px 20px 18px;
      background: #fff;
      border: 1px solid rgba(0, 0, 0, 0.06);
      border-radius: 22px;
      box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .feature-card--v2:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 36px rgba(15, 23, 42, 0.1);
    }

    .feature-card--v2 .feature-icon {
      width: 40px;
      height: 40px;
      border-radius: 999px;
      background: var(--color-primary-50, #fff1f0);
      color: var(--color-primary, #e8453c);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      flex-shrink: 0;
    }

    .feature-card-heading {
      margin: 0 0 8px;
      font-size: 22px;
      font-weight: 700;
      letter-spacing: -0.03em;
      color: #0a0a0a;
      line-height: 1.25;
    }

    .feature-card-desc {
      margin: 0 0 18px;
      font-size: 13.5px;
      line-height: 1.65;
      color: #8a8a8a;
      flex: 1 1 auto;
    }

    .feature-card-media {
      margin-top: auto;
      border-radius: 16px;
      overflow: hidden;
      background: #f3f4f6;
      aspect-ratio: 4 / 3;
    }

    .feature-card-media img,
    .feature-card-media video {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .feature-card-media video {
      pointer-events: none;
    }

    /* ══════════════════════════════════════════
       5. WORKFLOW
       ══════════════════════════════════════════ */
    .workflow {
      padding: 120px 0;
      background: #fafafa;
    }

    .workflow-title {
      font-size: 36px;
      font-weight: 600;
      color: #0a0a0a;
      text-align: center;
      margin-bottom: 60px;
      letter-spacing: -0.03em;
    }

    .workflow-steps {
      display: flex;
      align-items: flex-start;
      justify-content: center;
    }

    .step {
      flex: 0 0 280px;
      max-width: 280px;
      text-align: center;
    }

    .step-num {
      display: block;
      font-size: 72px;
      font-weight: 200;
      color: rgba(var(--color-primary-rgb), 0.72);
      line-height: 1;
      margin-bottom: 16px;
      letter-spacing: -0.04em;
    }

    .step h3 {
      font-size: 18px;
      font-weight: 600;
      color: #0a0a0a;
      margin-bottom: 8px;
    }

    .step p {
      font-size: 15px;
      color: #888;
      line-height: 1.6;
    }

    .step-line {
      flex: 1;
      max-width: 120px;
      height: 1px;
      background: #e0e0e0;
      margin-top: 36px;
    }

    /* ══════════════════════════════════════════
       6. CTA
       ══════════════════════════════════════════ */
    .cta {
      padding: 160px 0;
      background: #ffffff;
    }

    .cta-inner {
      text-align: center;
    }

    .cta-title {
      font-size: 48px;
      font-weight: 600;
      color: #0a0a0a;
      letter-spacing: -0.03em;
      margin-bottom: 32px;
    }

    .cta-subtitle {
      font-size: 18px;
      color: #888;
      margin-bottom: 40px;
    }

    .cta-main-btn {
      padding: 18px 48px;
      font-size: 17px;
    }

    /* ══════════════════════════════════════════
       7. FOOTER
       ══════════════════════════════════════════ */
    .footer {
      padding: 40px 0;
      border-top: 1px solid rgba(0, 0, 0, 0.06);
    }

    .footer-copy {
      text-align: center;
      font-size: 14px;
      color: #bbb;
    }

    /* ══════════════════════════════════════════
       RESPONSIVE
       ══════════════════════════════════════════ */
    @media (max-width: 768px) {
      /* ── Hero ── */
      .home-landing-page .hero {
        height: calc(100svh - 96px);
        min-height: calc(100svh - 96px);
        padding: 0;
      }

      .hero-title-stack h1 {
        font-size: clamp(1.5rem, 7vw, 2.4rem);
        line-height: 1.3;
      }

      .hero-subtitle {
        font-size: 14px;
        padding: 0 16px;
      }

      .hero-models {
        bottom: calc(100% + 108px);
        width: min(300px, 82vw);
      }

      .hero-platforms {
        bottom: 42px;
        width: calc(100% - 24px);
      }

      .hero-platforms-group {
        gap: 28px;
        padding-right: 28px;
      }

      .hero-platform {
        width: auto;
        height: 28px;
      }

      .hero-platform-logo {
        height: 18px;
        width: auto;
        max-width: none;
      }

      .hero-platforms-track {
        animation-duration: 36s;
      }

      .features-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
        max-width: none;
      }

      .feature-card--v2 {
        padding: 16px 14px 12px;
        border-radius: 18px;
      }

      .feature-card-heading {
        font-size: 17px;
      }

      .feature-card-desc {
        font-size: 12.5px;
        margin-bottom: 12px;
      }

      .feature-card-media {
        border-radius: 12px;
      }

      .workflow-steps {
        flex-direction: column;
        align-items: center;
        gap: 0;
      }

      .step {
        max-width: 280px;
      }

      .step-line {
        width: 1px;
        height: 40px;
        max-width: none;
        margin-top: 0;
        margin-bottom: 0;
      }

      /* ── Showcase — switch to single-column scroll ── */
      .showcase {
        padding: 48px 0 40px;
      }

      .showcase-canvas {
        position: relative;
        width: calc(100% - 32px);
        aspect-ratio: auto;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
        padding: 0;
      }

      .sc-card {
        position: static;
        width: calc(50% - 5px);
        aspect-ratio: auto;
        animation: none;
        border-radius: 12px;
        overflow: hidden;
      }

      /* Keep original proportions per card */
      .sc-l1, .sc-r5 { aspect-ratio: 2 / 2.75; }
      .sc-l2, .sc-l5, .sc-r1, .sc-r4 { aspect-ratio: 1 / 1; }
      .sc-l3, .sc-r2 { aspect-ratio: 3 / 2; }

      .sc-card img,
      .sc-card video {
        object-fit: cover;
        width: 100%;
        height: 100%;
      }

      /* Heroes keep 4×6 (2:3); do not grow with content height */
      .sc-card.sc-l4,
      .sc-card.sc-r3 {
        width: 100%;
        aspect-ratio: 2 / 3;
        height: auto;
        min-height: 0;
        order: -1;
      }

      .sc-card.sc-l4 {
        display: block;
      }

      .sc-card.sc-l4 .sc-scroll {
        height: 100%;
        max-height: none;
      }

      /* l4 long-strip: scroll inside fixed card — do NOT force cover */
      .sc-card.sc-l4 img,
      .sc-card.sc-l4 .sc-scroll img {
        object-fit: unset;
        height: auto;
      }

      /* r3 video: fill the card properly */
      .sc-card.sc-r3 video {
        object-fit: cover;
        width: 100%;
        height: 100%;
      }

      .sc-compare-handle .sc-compare-knob {
        width: 28px;
        height: 28px;
      }

      .sc-compare-knob::before,
      .sc-compare-knob::after {
        width: 6px;
        height: 6px;
      }

      .sc-compare-range {
        height: 100%;
        width: 100%;
      }

      .showcase-desc {
        font-size: 13px;
        margin-top: 20px;
      }

      .cta-title {
        font-size: clamp(2rem, 6vw, 3rem);
      }
    }