.lab-hero {
  min-height: calc(100dvh - 72px);
  padding: 112px 0 82px;
  display: flex;
  align-items: center;
}

.lab-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(500px, 1.14fr);
  gap: 58px;
  align-items: center;
}

.hero-title {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.6rem, 6vw, 6.45rem);
  line-height: 1.02;
  font-weight: 780;
  letter-spacing: 0;
  word-break: keep-all;
  overflow-wrap: normal;
}

.title-line {
  display: block;
  white-space: nowrap;
}

.lab-hero-subtitle {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--lab-ink);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.45;
  font-weight: 560;
}

.lab-hero-copy {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--lab-muted);
  font-size: 1.02rem;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.app-shelf {
  position: relative;
  min-height: 590px;
  padding: 28px;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background:
    radial-gradient(circle at 24% 18%, rgba(20, 148, 132, 0.12), transparent 34%),
    radial-gradient(circle at 82% 24%, rgba(39, 103, 205, 0.12), transparent 32%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(239, 246, 243, 0.84));
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.05), 0 36px 96px rgba(24, 40, 56, 0.13);
  overflow: hidden;
}

.app-shelf::before {
  content: "";
  position: absolute;
  inset: 28px;
  background:
    linear-gradient(90deg, rgba(24, 40, 56, 0.022) 1px, transparent 1px),
    linear-gradient(180deg, rgba(24, 40, 56, 0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 48%, #000 0 34%, transparent 76%);
  pointer-events: none;
}

.shelf-topline {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--lab-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.shelf-topline strong {
  color: var(--lab-ink);
}

.orbit-map {
  position: relative;
  z-index: 1;
  min-height: 510px;
  margin-top: 18px;
}

.orbit-ring,
.orbit-line {
  position: absolute;
  left: 50%;
  top: 50%;
  pointer-events: none;
}

.orbit-ring {
  border: 1px solid rgba(24, 40, 56, 0.08);
  border-radius: 999px;
  transform: translate(-50%, -50%);
}

.orbit-ring-outer {
  width: min(92%, 490px);
  aspect-ratio: 1;
}

.orbit-ring-inner {
  width: min(62%, 330px);
  aspect-ratio: 1;
  border-style: dashed;
}

.orbit-line {
  width: min(42%, 250px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(24, 40, 56, 0.14), transparent);
  transform-origin: left center;
}

.orbit-line-1 { transform: rotate(0deg); }
.orbit-line-2 { transform: rotate(60deg); }
.orbit-line-3 { transform: rotate(-58deg); }

.orbit-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 172px;
  min-height: 196px;
  padding: 16px;
  display: grid;
  place-items: center;
  text-align: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 24px 70px rgba(24, 40, 56, 0.14);
}

.orbit-core img {
  width: 78px;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(24, 40, 56, 0.12);
}

.orbit-core span {
  margin-top: 10px;
  color: var(--lab-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.orbit-core strong {
  color: var(--lab-ink);
  font-size: 1.1rem;
}

.orbit-product {
  position: absolute;
  width: 178px;
  min-height: 78px;
  padding: 12px 14px 12px 42px;
  display: grid;
  align-content: center;
  gap: 3px;
  border: 1px solid color-mix(in srgb, var(--product-accent), transparent 58%);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 16px 44px rgba(24, 40, 56, 0.1);
  backdrop-filter: blur(12px);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.orbit-product:hover,
.orbit-product:focus-visible {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--product-accent), transparent 44%);
  box-shadow: 0 26px 70px rgba(24, 40, 56, 0.16);
}

.orbit-logo {
  position: absolute;
  left: 14px;
  top: 50%;
  width: 24px;
  aspect-ratio: 1;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--product-accent), transparent 54%);
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--product-accent), transparent 88%);
  transform: translateY(-50%);
  overflow: hidden;
}

.orbit-logo::before {
  content: "";
  width: 10px;
  aspect-ratio: 1;
  border-radius: 999px;
  background: var(--product-accent);
}

.orbit-logo:has(img)::before {
  display: none;
}

.orbit-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.orbit-name {
  color: var(--lab-ink);
  font-size: 0.96rem;
  font-weight: 780;
  line-height: 1.2;
}

.orbit-product small {
  color: var(--lab-muted);
  font-size: 0.72rem;
  line-height: 1.35;
}

.orbit-product-1 { left: 4%; top: 10%; }
.orbit-product-2 { right: 2%; top: 17%; }
.orbit-product-3 { left: 7%; bottom: 11%; }
.orbit-product-4 { left: 50%; top: 2%; transform: translateX(-50%); }
.orbit-product-4:hover,
.orbit-product-4:focus-visible { transform: translateX(-50%) translateY(-5px); }
.orbit-product-5 { right: 5%; bottom: 12%; }

html[lang="en"] .lab-hero-grid {
  grid-template-columns: minmax(0, 0.76fr) minmax(540px, 1.24fr);
  gap: 68px;
}

html[lang="en"] .hero-title {
  max-width: 700px;
  font-size: clamp(3.15rem, 5vw, 5.35rem);
  line-height: 1.04;
}

html[lang="en"] .lab-hero-subtitle,
html[lang="en"] .lab-hero-copy {
  max-width: 570px;
}

html[lang="en"] .hero-actions .btn {
  white-space: normal;
}

html[lang="en"] .orbit-product {
  width: 194px;
  padding-right: 12px;
}

html[lang="en"] .orbit-name {
  font-size: 0.9rem;
}

html[lang="en"] .orbit-product small {
  font-size: 0.68rem;
  overflow-wrap: anywhere;
}

.section-block {
  padding: 88px 0;
}

.section-block.compact {
  padding-top: 48px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  font-weight: 720;
}

.section-heading p {
  max-width: 64ch;
  margin: 16px 0 0;
  color: var(--lab-muted);
  font-size: 1rem;
}

.page-lab-home .section-heading p,
.lab-site:not(.page-downloads) .section-heading p {
  display: none;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 18px;
  align-items: stretch;
}

.featured-card,
.product-card,
.router-card,
.content-card,
.about-panel {
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.82);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 18px 48px rgba(24, 40, 56, 0.07);
}

.featured-card {
  min-height: 540px;
  padding: 30px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 28px;
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.featured-card:first-child {
  background:
    radial-gradient(circle at 78% 18%, color-mix(in srgb, var(--product-accent), transparent 84%), transparent 30%),
    rgba(255, 253, 248, 0.9);
}

.featured-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--product-accent), transparent 50%);
  box-shadow: 0 24px 64px rgba(24, 40, 56, 0.11);
}

.product-preview {
  position: relative;
  min-height: 158px;
  border: 1px solid color-mix(in srgb, var(--product-accent), transparent 70%);
  border-radius: 8px;
  background:
    radial-gradient(circle at 18% 14%, color-mix(in srgb, var(--product-accent), transparent 82%), transparent 32%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), var(--product-soft));
  overflow: hidden;
}

.product-preview img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  display: block;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.94) contrast(0.98);
  transition: transform 220ms ease, filter 220ms ease;
}

.theme-review .product-preview img {
  padding: 10px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.72);
}

.product-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 52%, rgba(255, 253, 248, 0.24)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.product-preview.preview-featured {
  height: 300px;
  min-height: 300px;
}

.product-preview.preview-card {
  height: 174px;
  min-height: 174px;
}

.product-preview.preview-card img {
  padding: 8px;
  object-fit: contain;
  object-position: center;
  background: rgba(255, 255, 255, 0.68);
}

.product-preview.preview-shelf {
  min-height: 116px;
}

.product-preview.preview-empty {
  min-height: 158px;
  display: grid;
  place-items: center;
  padding: 18px;
}

.product-preview.preview-empty div {
  width: 100%;
  min-height: 86px;
  padding: 16px;
  display: grid;
  align-content: center;
  gap: 8px;
  border: 1px dashed color-mix(in srgb, var(--product-accent), transparent 54%);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.58);
}

.product-preview.preview-empty span {
  color: var(--lab-ink);
  font-size: 0.95rem;
  font-weight: 760;
}

.product-preview.preview-empty strong {
  color: var(--lab-muted);
  font-size: 0.82rem;
}

.featured-card:hover .product-preview img,
.product-card:hover .product-preview img,
.orbit-product:hover .product-preview img {
  transform: scale(1.025);
  filter: saturate(1) contrast(1.02);
}

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

.product-card {
  min-height: 378px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.product-card.is-open-source {
  background:
    linear-gradient(180deg, rgba(255, 253, 248, 0.92), rgba(255, 253, 248, 0.8)),
    radial-gradient(circle at 18% 8%, color-mix(in srgb, var(--product-accent), transparent 86%), transparent 32%);
}

.product-card.is-open-source::before {
  content: "Open Source";
  width: fit-content;
  padding: 4px 7px;
  border-radius: 5px;
  background: color-mix(in srgb, var(--product-accent), white 88%);
  color: color-mix(in srgb, var(--product-accent), #152129 16%);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0;
}

.product-card:nth-child(n) {
  grid-column: auto;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--product-accent), transparent 55%);
  box-shadow: 0 18px 42px rgba(24, 40, 56, 0.1);
}

.product-card h3,
.featured-card h3 {
  margin: 0;
  color: var(--lab-ink);
  font-size: 1.2rem;
  line-height: 1.25;
}

.featured-card h3 {
  font-size: clamp(1.6rem, 3vw, 2.6rem);
}

.product-status {
  width: fit-content;
  padding: 5px 8px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--product-accent), white 86%);
  color: color-mix(in srgb, var(--product-accent), #152129 18%);
  font-size: 0.76rem;
  font-weight: 700;
}

.product-tagline {
  margin: 0;
  color: var(--lab-muted);
  font-size: 0.92rem;
  line-height: 1.58;
}

.keyword-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
}

.keyword-row span {
  padding: 4px 7px;
  border-radius: 5px;
  background: var(--lab-paper);
  color: var(--lab-muted);
  font-size: 0.75rem;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.lab-site .summary-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.lab-site .summary-metric {
  min-height: 104px;
  padding: 18px;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.84);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 18px 48px rgba(24, 40, 56, 0.06);
}

.lab-site .summary-metric span {
  display: block;
  color: var(--lab-muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.lab-site .summary-metric strong {
  display: block;
  margin-top: 10px;
  color: var(--lab-ink);
  font-size: 1.28rem;
  line-height: 1.25;
}

.router-list {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--lab-line);
}

#use-case-router.router-list {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  border-top: 0;
}

.router-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
  border-width: 0 0 1px;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.use-case-card {
  min-height: 250px;
  padding: 18px;
  grid-template-columns: 1fr;
  grid-template-rows: auto minmax(116px, 1fr) auto;
  align-content: stretch;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.82);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 18px 48px rgba(24, 40, 56, 0.07);
  transition: transform 180ms ease, border-color 180ms ease;
}

.use-case-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--product-accent), transparent 55%);
}

.use-case-card .btn {
  width: 100%;
  align-self: end;
}

.use-case-card p {
  margin: 12px 0 0;
  color: var(--lab-muted);
  font-size: 0.94rem;
  line-height: 1.62;
}

.router-card strong {
  display: block;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.25;
}

.router-card span {
  display: block;
  margin-top: 6px;
  color: var(--lab-muted);
}

.content-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.source-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card {
  min-height: 170px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.content-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.content-card p {
  margin: 12px 0 0;
  color: var(--lab-muted);
  font-size: 0.92rem;
}

.content-card .text-link {
  margin-top: auto;
}

.content-hub {
  min-height: 220px;
  padding: 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.7fr);
  gap: 24px;
  align-items: center;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background:
    radial-gradient(circle at 90% 12%, rgba(39, 103, 205, 0.09), transparent 32%),
    rgba(255, 253, 248, 0.84);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 18px 48px rgba(24, 40, 56, 0.07);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.content-hub:hover,
.content-hub:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(24, 40, 56, 0.18);
  box-shadow: 0 24px 64px rgba(24, 40, 56, 0.1);
}

.content-hub span {
  color: var(--lab-subtle);
  font-size: 0.82rem;
  font-weight: 760;
}

.content-hub h3 {
  margin: 10px 0 0;
  color: var(--lab-ink);
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.15;
}

.content-hub p {
  max-width: 62ch;
  margin: 14px 0 0;
  color: var(--lab-muted);
  line-height: 1.75;
}

.content-topic-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.content-topic-row span {
  padding: 12px;
  border: 1px solid rgba(24, 40, 56, 0.08);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--lab-ink);
  font-size: 0.9rem;
}

.source-card {
  min-height: 230px;
}

.source-scene {
  margin-top: 0 !important;
  color: var(--lab-subtle) !important;
  font-size: 0.82rem !important;
}

.source-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
}

.about-panel {
  padding: 30px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.about-avatar-card {
  position: relative;
  padding: 12px;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(239, 246, 244, 0.82));
  box-shadow: 0 18px 44px rgba(24, 40, 56, 0.09);
}

.about-avatar-card img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 7px;
  object-fit: cover;
}

.about-avatar-card span {
  display: none;
}

.practice-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.practice-tags span {
  padding: 7px 9px;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--lab-muted);
  font-size: 0.82rem;
  font-weight: 650;
}

.about-mark {
  width: 180px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--lab-line);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff, #edf5f1);
  color: var(--lab-ink);
  font-size: 3rem;
  font-weight: 760;
}

.about-panel h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.12;
}

.about-panel p {
  max-width: 70ch;
  margin: 16px 0 0;
  color: var(--lab-muted);
  white-space: pre-line;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.social-proof-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(180px, 0.75fr);
  gap: 12px;
  margin-top: 18px;
}

.social-proof-card {
  min-height: 112px;
  padding: 12px;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 14px 34px rgba(24, 40, 56, 0.06);
}

.social-proof-card img {
  width: 100%;
  max-height: 120px;
  object-fit: contain;
  border-radius: 6px;
  background: #ffffff;
}

.social-proof-card strong {
  display: block;
  margin-top: 8px;
  color: var(--lab-ink);
  font-size: 0.92rem;
}

.social-name-card {
  display: grid;
  align-content: center;
  gap: 6px;
}

.social-name-card span {
  color: var(--lab-subtle);
  font-size: 0.82rem;
  font-weight: 700;
}

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

.account-card {
  min-height: 190px;
  padding: 18px;
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  border: 1px solid rgba(24, 40, 56, 0.1);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.82);
  box-shadow: 0 1px 1px rgba(24, 40, 56, 0.04), 0 18px 48px rgba(24, 40, 56, 0.07);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.account-card.has-image {
  grid-template-columns: 128px minmax(0, 1fr);
}

.account-card:not(.is-disabled):hover {
  transform: translateY(-3px);
  border-color: rgba(24, 40, 56, 0.18);
  box-shadow: 0 24px 64px rgba(24, 40, 56, 0.1);
}

.account-card img {
  width: 128px;
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid rgba(24, 40, 56, 0.08);
  border-radius: 8px;
  background: #fff;
}

.account-card.account-wechat.has-image {
  grid-column: span 2;
  grid-template-columns: 240px minmax(0, 1fr);
  background:
    radial-gradient(circle at 16% 18%, rgba(28, 184, 84, 0.09), transparent 30%),
    rgba(255, 253, 248, 0.88);
}

.account-card.account-wechat img {
  width: 240px;
  aspect-ratio: 1710 / 624;
  object-fit: contain;
}

.account-card:not(:has(img)) {
  grid-template-columns: 1fr;
}

.account-card span {
  color: var(--lab-subtle);
  font-size: 0.78rem;
  font-weight: 760;
  text-transform: none;
}

.account-card strong {
  display: block;
  margin-top: 6px;
  color: var(--lab-ink);
  font-size: 1.08rem;
}

.account-card p {
  margin: 8px 0 0;
  color: var(--lab-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.account-card small {
  display: block;
  margin-top: 12px;
  color: var(--lab-subtle);
  font-size: 0.78rem;
  font-weight: 700;
}

.account-card.is-disabled {
  opacity: 0.82;
}

@media (max-width: 1120px) {
  .lab-hero-grid,
  .featured-grid {
    grid-template-columns: 1fr;
  }

  html[lang="en"] .lab-hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  html[lang="en"] .hero-title {
    max-width: 760px;
  }

  .app-shelf {
    min-height: 640px;
  }

  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .product-card:nth-child(n) {
    grid-column: span 1;
  }

  #use-case-router.router-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-grid,
  .source-grid,
  .account-grid,
  .content-hub {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .lab-hero {
    padding: 58px 0 54px;
    min-height: auto;
  }

  .lab-hero-grid {
    gap: 32px;
  }

  .hero-title {
    font-size: clamp(2.95rem, 13vw, 4.1rem);
    line-height: 1.04;
  }

  .title-line {
    white-space: normal;
  }

  html[lang="en"] .hero-title {
    font-size: clamp(2.9rem, 12vw, 4.05rem);
  }

  html[lang="en"] .title-line {
    white-space: normal;
  }

  html[lang="en"] .orbit-product {
    width: 100%;
  }

  .app-shelf {
    min-height: auto;
    padding: 18px;
  }

  .app-shelf::before {
    inset: 18px;
    background-size: 44px 44px;
  }

  .orbit-map {
    min-height: 0;
    display: grid;
    gap: 12px;
  }

  .orbit-ring,
  .orbit-line {
    display: none;
  }

  .orbit-core,
  .orbit-product {
    position: relative;
    inset: auto !important;
    left: auto;
    top: auto;
    right: auto;
    bottom: auto;
    width: 100%;
    min-height: 0;
    transform: none !important;
  }

  .orbit-core {
    min-height: 156px;
    margin-bottom: 4px;
  }

  .section-block {
    padding: 62px 0;
  }

  .product-grid,
  .content-grid,
  .source-grid,
  .account-grid,
  .content-hub,
  .lab-site .summary-strip {
    grid-template-columns: 1fr;
  }

  .account-card.account-wechat.has-image {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .account-card.account-wechat img {
    width: min(100%, 260px);
  }

  #use-case-router.router-list {
    grid-template-columns: 1fr;
  }

  .router-card {
    grid-template-columns: 1fr;
  }

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

  .social-proof-grid {
    grid-template-columns: 1fr;
  }

  .about-avatar-card {
    max-width: 260px;
  }

  .about-mark {
    width: 132px;
  }
}