:root {
  --ink: #152033;
  --ink-2: #293750;
  --muted: #647086;
  --muted-2: #8a95a8;
  --line: #e3e9f1;
  --line-strong: #d3dce8;
  --surface: #ffffff;
  --soft: #f5f8fc;
  --soft-blue: #eef5ff;
  --blue: #2468e5;
  --blue-deep: #174eb1;
  --cyan: #0c9ebd;
  --green: #128760;
  --orange: #c26b16;
  --red: #c9465b;
  --dark: #101a2d;
  --dark-2: #17253d;
  --shadow-sm: 0 8px 24px rgba(31, 54, 91, 0.07);
  --shadow-lg: 0 26px 70px rgba(31, 54, 91, 0.14);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shell: 1180px;
  color: var(--ink);
  background: var(--surface);
  font-family:
    "HarmonyOS Sans SC", MiSans, "Noto Sans SC", "Source Han Sans SC",
    "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html.home-scroll-initializing {
  scroll-behavior: auto !important;
}

html.home-scroll-initializing body {
  visibility: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--surface);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body,
button,
a {
  font: inherit;
}

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

button {
  padding: 0;
  border: 0;
  color: inherit;
  cursor: pointer;
}

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

svg {
  display: block;
}

.shell {
  width: min(var(--shell), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: var(--blue);
  border-radius: 6px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  border-bottom: 1px solid rgba(227, 233, 241, 0.85);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 26px rgba(30, 48, 77, 0.06);
}

.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid #d8e1ed;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 5px 14px rgba(37, 104, 229, 0.08);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-copy {
  display: grid;
  gap: 2px;
  line-height: 1.05;
}

.brand-copy strong {
  font-size: 15px;
  font-weight: 800;
}

.brand-copy span {
  color: var(--muted);
  font-size: 10px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 27px;
  margin-left: auto;
}

.desktop-nav a,
.mobile-nav a {
  color: #58667c;
  font-size: 13px;
  font-weight: 650;
  transition: color 0.2s ease;
}

.desktop-nav a:hover,
.mobile-nav a:hover,
.footer-links a:hover {
  color: var(--blue);
}

.button {
  min-height: 45px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 760;
  transition:
    transform 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button svg,
.text-link svg {
  width: 16px;
  height: 16px;
}

.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 8px 20px rgba(36, 104, 229, 0.2);
}

.button-primary:hover {
  background: var(--blue-deep);
  box-shadow: 0 11px 25px rgba(36, 104, 229, 0.25);
}

.button-secondary {
  color: var(--ink-2);
  border-color: var(--line-strong);
  background: #fff;
}

.button-secondary:hover {
  border-color: #aebdd0;
  box-shadow: var(--shadow-sm);
}

.button-light {
  color: var(--dark);
  background: #fff;
}

.button-small {
  min-height: 37px;
  padding: 0 14px;
  font-size: 12px;
}

.back-to-top {
  position: fixed;
  right: 80px;
  bottom: 24px;
  z-index: 30;
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  border: 1px solid #cbd9ed;
  border-radius: 50%;
  color: var(--blue);
  background: rgba(239, 246, 255, 0.98);
  box-shadow: 0 10px 26px rgba(27, 61, 111, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

.back-to-top:hover {
  color: #fff;
  background: var(--blue);
}

.back-to-top svg {
  width: 19px;
  height: 19px;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  display: none;
  place-items: center;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
}

.mobile-nav {
  display: none;
}

.hero-section {
  position: relative;
  overflow: hidden;
  min-height: 685px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 79% 20%, rgba(72, 144, 255, 0.12), transparent 28%),
    radial-gradient(circle at 12% 8%, rgba(12, 158, 189, 0.06), transparent 24%),
    linear-gradient(180deg, #fbfdff 0%, #f4f8fd 100%);
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    linear-gradient(#dce6f2 1px, transparent 1px),
    linear-gradient(90deg, #dce6f2 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 84%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(500px, 1.06fr);
  gap: 72px;
  align-items: center;
  padding: 82px 0 92px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: 0.08em;
}

.eyebrow-line {
  width: 22px;
  height: 2px;
  background: currentColor;
}

.hero-copy h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(48px, 5.2vw, 68px);
  line-height: 1.09;
  letter-spacing: -0.04em;
  font-weight: 850;
}

.hero-copy h1 span,
.section-heading h2 span,
.split-copy h2 span,
.page-hero h1 span {
  color: var(--blue);
}

.hero-tagline {
  margin: 20px 0 0;
  color: var(--ink-2);
  font-size: 22px;
  font-weight: 760;
  line-height: 1.45;
}

.hero-lead {
  max-width: 560px;
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 29px;
}

.hero-actions .button-primary {
  min-width: 144px;
  min-height: 56px;
  padding: 0 28px;
  font-size: 16px;
}

.hero-proofs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.hero-proof {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 31px;
  padding: 0 10px;
  color: #55657c;
  border: 1px solid #dbe5f0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 10px;
  font-weight: 680;
}

.hero-proof svg {
  width: 13px;
  height: 13px;
  color: var(--blue);
}

.bridge-visual {
  position: relative;
  padding: 22px;
  border: 1px solid #d8e3f0;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
}

.bridge-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 720;
}

.status-badge,
.example-badge,
.soft-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  color: var(--green);
  border-radius: 999px;
  background: #eaf8f2;
  font-size: 9px;
  font-weight: 820;
  letter-spacing: 0.04em;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(18, 135, 96, 0.12);
}

.bridge-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 96px 1fr;
  gap: 15px;
  align-items: center;
}

.source-card,
.destination-card {
  min-height: 328px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.visual-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 800;
}

.visual-label svg {
  width: 16px;
  height: 16px;
  color: var(--blue);
}

.source-stack,
.tool-stack {
  display: grid;
  gap: 9px;
}

.source-row,
.tool-row {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border: 1px solid #e6ebf2;
  border-radius: 9px;
  background: #fafcff;
}

.source-row svg,
.tool-row svg {
  width: 16px;
  height: 16px;
  color: var(--blue);
}

.source-row div,
.tool-row div {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.source-row strong,
.tool-row strong {
  font-size: 11px;
}

.source-row small,
.tool-row small {
  overflow: hidden;
  color: var(--muted-2);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mcp-core {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 10px;
  color: var(--blue);
}

.mcp-core::before,
.mcp-core::after {
  content: "";
  position: absolute;
  top: 29px;
  width: 22px;
  height: 1px;
  background: #a9c6f0;
}

.mcp-core::before {
  left: -15px;
}

.mcp-core::after {
  right: -15px;
}

.core-orb {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 16px;
  background: transparent;
  box-shadow: none;
}

.core-orb svg {
  width: 28px;
  height: 28px;
}

.core-orb img {
  width: 58px;
  height: 58px;
  object-fit: contain;
  border-radius: 8px;
}

.mcp-core strong {
  font-size: 11px;
}

.mcp-core small {
  color: var(--muted-2);
  font-size: 8px;
  text-align: center;
}

.tool-row {
  background: #fff;
}

.bridge-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 15px;
  color: var(--muted);
  font-size: 9px;
}

.bridge-foot svg {
  width: 13px;
  height: 13px;
  color: var(--green);
}

.section {
  padding: 104px 0;
}

.section-white {
  background: #fff;
}

.section-soft {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.section-heading {
  max-width: 780px;
  margin: 0 0 47px;
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading.centered .eyebrow {
  justify-content: center;
}

.section-heading h2,
.split-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1.22;
  letter-spacing: -0.035em;
}

.section-heading h2.nowrap-heading {
  white-space: nowrap;
  font-size: clamp(18px, 4vw, 48px);
}

.section-heading > p:last-child,
.split-copy > p {
  max-width: 690px;
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.advantage-card {
  grid-column: span 2;
  min-height: 235px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.advantage-card:hover {
  border-color: #c7d7eb;
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.advantage-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 38px;
  margin-bottom: 16px;
}

.advantage-card-head h3 {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
}

.card-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--blue);
  background: var(--soft-blue);
}

.card-icon.green {
  color: var(--green);
  background: #ebf8f3;
}

.card-icon.orange {
  color: var(--orange);
  background: #fff4e9;
}

.card-icon.red {
  color: var(--red);
  background: #fff0f2;
}

.card-icon.cyan {
  color: var(--cyan);
  background: #eaf9fc;
}

.card-icon svg {
  width: 19px;
  height: 19px;
}

.advantage-card h3,
.person-card h3,
.scope-item h3,
.example-card h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
}

.advantage-card p,
.person-card p,
.scope-item p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

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

.scene-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.scene-card[open] {
  border-color: #b9d1f3;
  box-shadow: var(--shadow-sm);
}

.scene-card summary {
  min-height: 276px;
  display: flex;
  flex-direction: column;
  padding: 23px;
  list-style: none;
  cursor: pointer;
}

.scene-card summary::-webkit-details-marker {
  display: none;
}

.scene-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 25px;
}

.scene-top .card-icon {
  width: 36px;
  height: 36px;
}

.scene-number {
  color: #9da9ba;
  font-size: 10px;
  font-weight: 800;
}

.scene-card h3 {
  margin: 0;
  font-size: 18px;
}

.scene-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.scene-question {
  margin-top: auto;
  padding-top: 18px;
  color: #3f608b;
  border-top: 1px solid #edf1f6;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.55;
}

.scene-expand {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 11px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 800;
}

.scene-expand svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s ease;
}

.scene-card[open] .scene-expand svg {
  transform: rotate(180deg);
}

.scene-result {
  padding: 18px 23px 22px;
  color: #52637b;
  border-top: 1px solid var(--line);
  background: #f8fbff;
  font-size: 11px;
  line-height: 1.7;
}

.scene-result strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink-2);
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.person-card {
  min-height: 222px;
  padding: 23px;
  border-left: 3px solid #b9d5fb;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.person-card:nth-child(2) {
  border-color: #9ed7c2;
}

.person-card:nth-child(3) {
  border-color: #efc58d;
}

.person-card:nth-child(4) {
  border-color: #9dd9e4;
}

.person-role {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 28px;
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
}

.person-role svg {
  width: 16px;
  height: 16px;
}

.dual-section {
  background: #fff;
}

.dual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  align-items: stretch;
}

.capability-column {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
}

.capability-column.ai-column {
  border-color: #cddcf0;
  background: linear-gradient(145deg, #f4f8ff, #eef5ff);
}

.column-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 26px;
}

.column-head h3 {
  margin: 0;
  font-size: 25px;
  line-height: 1.35;
}

.column-head p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.column-head .card-icon {
  flex: 0 0 auto;
}

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

.scope-item {
  min-height: 130px;
  padding: 15px;
  border: 1px solid #e4eaf2;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.84);
}

.scope-item h3 {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
}

.scope-item h3 svg {
  width: 15px;
  height: 15px;
  color: var(--blue);
}

.scope-item p {
  font-size: 10px;
  line-height: 1.65;
}

.column-note {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  padding-top: 17px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 10px;
  line-height: 1.6;
}

.column-note svg {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  margin-top: 1px;
  color: var(--green);
}

.section-dark {
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(60, 128, 236, 0.2), transparent 30%),
    var(--dark);
}

.section-dark .eyebrow {
  color: #8db9ff;
}

.section-dark .section-heading h2 span,
.section-dark .split-copy h2 span {
  color: #8db9ff;
}

.section-dark .section-heading > p:last-child,
.section-dark .split-copy > p {
  color: #aebacf;
}

.connect-preview-grid,
.ask-grid,
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  gap: 70px;
  align-items: center;
}

.preview-steps {
  display: grid;
  gap: 10px;
  margin-top: 29px;
}

.preview-step {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 13px;
  align-items: start;
}

.preview-step > span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid #365070;
  border-radius: 9px;
  color: #9ec3ff;
  background: #16243a;
  font-size: 10px;
  font-weight: 800;
}

.preview-step strong {
  display: block;
  margin-top: 2px;
  font-size: 13px;
}

.preview-step p {
  margin: 4px 0 0;
  color: #9facc0;
  font-size: 10px;
  line-height: 1.6;
}

.simple-use-card {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid #30445f;
  border-radius: var(--radius-lg);
  background: #17253d;
  box-shadow: 0 28px 64px rgba(5, 10, 20, 0.2);
}

.simple-use-step {
  min-height: 58px;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 13px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid #314762;
  border-radius: 9px;
  background: #142239;
}

.simple-use-step > span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid #365070;
  border-radius: 9px;
  color: #9ec3ff;
  background: #16243a;
  font-size: 10px;
  font-weight: 800;
}

.simple-use-step strong {
  display: block;
  font-size: 13px;
}

.simple-use-step p {
  margin: 2px 0 0;
  color: #9facc0;
  font-size: 10px;
  line-height: 1.6;
}

.simple-use-cta {
  justify-self: start;
  margin-top: 0;
}

.simple-use-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
}

.simple-use-example {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #8db9ff;
  font-size: 12px;
  font-weight: 800;
}

.simple-use-example svg {
  width: 15px;
  height: 15px;
}

.tool-selector,
.demo-card {
  overflow: hidden;
  border: 1px solid #30445f;
  border-radius: var(--radius-lg);
  background: rgba(22, 36, 58, 0.88);
  box-shadow: 0 28px 64px rgba(5, 10, 20, 0.25);
}

.tab-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  padding: 8px;
  border-bottom: 1px solid #30445f;
  background: #111d31;
}

.tab-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 8px;
  color: #9eacc0;
  background: transparent;
  font-size: 11px;
  font-weight: 760;
}

.tab-button.active {
  color: #fff;
  background: #243852;
}

.tab-button svg {
  width: 15px;
  height: 15px;
}

.tab-panel {
  display: none;
  min-height: 320px;
  padding: 28px;
}

.tab-panel.active {
  display: block;
}

.tab-panel h3 {
  margin: 0;
  font-size: 19px;
}

.tab-panel > p {
  margin: 9px 0 21px;
  color: #aab6c9;
  font-size: 11px;
  line-height: 1.7;
}

.mini-steps {
  display: grid;
  gap: 9px;
}

.mini-step {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  border: 1px solid #314762;
  border-radius: 9px;
  color: #d8e2f1;
  background: #142239;
  font-size: 11px;
}

.mini-step span {
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #a8c9ff;
  background: #223b60;
  font-size: 8px;
  font-weight: 800;
}

.panel-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 21px;
  color: #9ec2ff;
  font-size: 11px;
  font-weight: 800;
}

.panel-link svg {
  width: 14px;
  height: 14px;
}

.ask-section {
  border-top: 1px solid #243652;
}

.demo-card {
  background: #15243a;
}

.demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 20px;
  border-bottom: 1px solid #30445f;
}

.demo-head strong {
  font-size: 11px;
}

.example-badge {
  color: #a9c8f8;
  background: #243b5d;
}

.demo-card .tab-list {
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 0;
  background: transparent;
}

.demo-card .tab-panel {
  min-height: 280px;
  padding: 19px 20px 22px;
}

.question-bubble {
  max-width: 86%;
  margin-left: auto;
  padding: 13px 15px;
  border-radius: 12px 12px 3px 12px;
  color: #fff;
  background: var(--blue);
  font-size: 11px;
  line-height: 1.6;
}

.answer-box {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid #314762;
  border-radius: 12px;
  background: #111d30;
}

.answer-title {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #dce8fa;
  font-size: 11px;
  font-weight: 800;
}

.answer-title svg {
  width: 15px;
  height: 15px;
  color: #92baff;
}

.answer-box p {
  margin: 10px 0 0;
  color: #aab8ca;
  font-size: 10px;
  line-height: 1.7;
}

.answer-source {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 13px;
  padding-top: 12px;
  color: #7f91aa;
  border-top: 1px solid #2b3e58;
  font-size: 8px;
}

.answer-source svg {
  width: 12px;
  height: 12px;
  color: var(--green);
}

.process-band {
  padding: 38px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: 0.9fr 2.1fr;
  gap: 55px;
  align-items: center;
}

.process-grid h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.35;
}

.process-grid > div:first-child p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.6;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.process-step {
  position: relative;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: center;
}

.process-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 16px;
  right: -19px;
  width: 10px;
  height: 1px;
  background: #b8c8db;
}

.process-step > span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--blue);
  background: var(--soft-blue);
  font-size: 10px;
  font-weight: 800;
}

.process-step strong {
  display: block;
  font-size: 11px;
}

.process-step small {
  display: block;
  margin-top: 3px;
  color: var(--muted-2);
  font-size: 8px;
  line-height: 1.5;
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(520px, 1.25fr);
  gap: 85px;
  align-items: start;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 24px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}

.faq-list {
  border-top: 1px solid var(--line);
}

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

.faq-question {
  width: 100%;
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--ink);
  background: transparent;
  text-align: left;
  font-size: 13px;
  font-weight: 760;
}

.faq-question:hover {
  color: var(--blue);
}

.faq-question svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: #8f9bad;
}

.faq-answer {
  display: none;
  padding: 0 42px 20px 0;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-answer p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

.final-cta {
  padding: 79px 0;
  color: #fff;
  background:
    radial-gradient(circle at 80% 0%, rgba(93, 163, 255, 0.28), transparent 35%),
    linear-gradient(135deg, #1a57bc, #173c7b);
}

.final-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 45px;
}

.final-cta h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: -0.035em;
}

.final-cta p {
  margin: 10px 0 0;
  color: #c9ddff;
  font-size: 13px;
}

.final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 0 0 auto;
}

.final-actions .button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.site-footer {
  color: #b9c5d6;
  background: #0c1525;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 45px;
  padding: 52px 0 38px;
}

.brand-inverse .brand-copy strong {
  color: #fff;
}

.brand-inverse .brand-copy span {
  color: #8493a9;
}

.footer-brand p {
  max-width: 310px;
  margin: 17px 0 0;
  color: #8493a9;
  font-size: 11px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 64px;
  padding-right: 4%;
}

.footer-links div {
  display: grid;
  align-content: start;
  gap: 12px;
  min-width: 95px;
}

.footer-links strong {
  color: #eef4fb;
  font-size: 11px;
}

.footer-links a {
  color: #8c9bb0;
  font-size: 11px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0 23px;
  color: #6f7f96;
  border-top: 1px solid #1e2c41;
  font-size: 10px;
}

/* Inner pages */
.inner-page .site-header {
  position: sticky;
}

.page-hero {
  padding: 72px 0 66px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 76% 18%, rgba(57, 127, 237, 0.12), transparent 30%),
    linear-gradient(180deg, #fbfdff, #f4f8fd);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 28px;
  color: var(--muted-2);
  font-size: 10px;
}

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

.breadcrumb svg {
  width: 12px;
  height: 12px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(400px, 0.65fr);
  gap: 75px;
  align-items: end;
}

.page-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 5vw, 60px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.page-hero .direct-answer {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.hero-aside-card {
  padding: 22px;
  border: 1px solid #d7e2ef;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-sm);
}

.hero-aside-card strong {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
}

.hero-aside-card span {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 9px;
  color: var(--muted);
  font-size: 10px;
}

.hero-aside-card svg {
  width: 14px;
  height: 14px;
  color: var(--blue);
}

.content-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 70px;
  align-items: start;
}

.page-toc {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 7px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.page-toc strong {
  margin-bottom: 5px;
  font-size: 10px;
}

.page-toc a {
  padding: 8px 9px;
  color: var(--muted);
  border-radius: 7px;
  font-size: 10px;
}

.page-toc a:hover {
  color: var(--blue);
  background: var(--soft-blue);
}

.article-stack {
  min-width: 0;
  display: grid;
  gap: 75px;
}

.content-section {
  scroll-margin-top: 105px;
}

.content-section > .eyebrow {
  margin-bottom: 12px;
}

.content-section h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.content-section > p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.check-grid,
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 25px;
}

.check-card,
.info-card {
  min-height: 156px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.check-card > span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 8px;
  color: var(--blue);
  background: var(--soft-blue);
  font-size: 10px;
  font-weight: 800;
}

.check-card h3,
.info-card h3 {
  margin: 0;
  font-size: 14px;
}

.check-card p,
.info-card p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.7;
}

.light-tabs {
  margin-top: 25px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.light-tabs .tab-list {
  border-color: var(--line);
  background: #f5f8fc;
}

.light-tabs .tab-button {
  color: var(--muted);
}

.light-tabs .tab-button.active {
  color: var(--blue);
  background: #fff;
  box-shadow: 0 2px 8px rgba(29, 49, 80, 0.08);
}

.light-tabs .tab-panel {
  min-height: 0;
  padding: 29px;
}

.light-tabs .tab-panel > p {
  color: var(--muted);
}

.instruction-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.instruction-list li {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--ink-2);
  font-size: 11px;
  line-height: 1.7;
}

.instruction-list li > span {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  color: var(--blue);
  background: var(--soft-blue);
  font-size: 8px;
  font-weight: 800;
}

.code-block {
  position: relative;
  margin-top: 17px;
  padding: 18px 48px 18px 18px;
  overflow-x: auto;
  border: 1px solid #263b58;
  border-radius: 10px;
  color: #d9e8ff;
  background: #111d30;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  line-height: 1.7;
  white-space: pre;
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px;
  border-radius: 6px;
  color: #a8c8f9;
  background: #213653;
  font-size: 8px;
}

.copy-button svg {
  width: 12px;
  height: 12px;
}

.notice {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid #cde1f8;
  border-radius: 9px;
  color: #52657c;
  background: #f2f8ff;
  font-size: 10px;
  line-height: 1.7;
}

.notice svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  margin-top: 1px;
  color: var(--blue);
}

.plain-list {
  display: grid;
  gap: 0;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.plain-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 16px 0;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  line-height: 1.7;
}

.plain-list li svg {
  width: 16px;
  height: 16px;
  margin-top: 1px;
  color: var(--green);
}

.error-table,
.comparison-table {
  width: 100%;
  margin-top: 24px;
  border-collapse: collapse;
  border: 1px solid var(--line);
  font-size: 10px;
}

.error-table th,
.error-table td,
.comparison-table th,
.comparison-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  line-height: 1.65;
  vertical-align: top;
}

.error-table th,
.comparison-table th {
  color: var(--ink-2);
  background: #f6f8fb;
  font-weight: 800;
}

.error-table td,
.comparison-table td {
  color: var(--muted);
}

.relationship-map {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  align-items: center;
  margin-top: 26px;
}

.relation-node {
  min-height: 115px;
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  text-align: center;
}

.relation-node svg {
  width: 22px;
  height: 22px;
  margin-bottom: 10px;
  color: var(--blue);
}

.relation-node strong {
  font-size: 12px;
}

.relation-node small {
  margin-top: 5px;
  color: var(--muted-2);
  font-size: 8px;
  line-height: 1.5;
}

.relation-arrow {
  display: grid;
  place-items: center;
  color: #9fb3cb;
}

.relation-arrow svg {
  width: 17px;
  height: 17px;
}

.query-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 25px;
}

.flow-card {
  position: relative;
  min-height: 170px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.flow-card > span {
  color: var(--blue);
  font-size: 9px;
  font-weight: 820;
}

.flow-card h3 {
  margin: 18px 0 0;
  font-size: 14px;
}

.flow-card p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.7;
}

.examples-grid {
  display: grid;
  gap: 18px;
}

.example-card {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.example-card-head {
  padding: 28px;
  color: #fff;
  background: linear-gradient(145deg, #173f80, #1f67d8);
}

.example-card:nth-child(2) .example-card-head,
.example-card:nth-child(5) .example-card-head {
  background: linear-gradient(145deg, #17616c, #1692a8);
}

.example-card:nth-child(3) .example-card-head {
  background: linear-gradient(145deg, #6d3c49, #b8485e);
}

.example-card:nth-child(4) .example-card-head {
  background: linear-gradient(145deg, #5f451e, #bd7620);
}

.example-card-head .soft-badge {
  margin-bottom: 30px;
  color: #d9e9ff;
  background: rgba(255, 255, 255, 0.12);
}

.example-card-head h2 {
  font-size: 19px;
}

.example-question {
  margin: 11px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 11px;
  line-height: 1.65;
}

.example-card-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 27px;
}

.example-detail {
  padding: 0 19px;
  border-left: 1px solid var(--line);
}

.example-detail:first-child {
  padding-left: 0;
  border-left: 0;
}

.example-detail:last-child {
  padding-right: 0;
}

.example-detail strong {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-2);
  font-size: 10px;
}

.example-detail strong svg {
  width: 14px;
  height: 14px;
  color: var(--blue);
}

.example-detail p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.75;
}

.faq-page-list .faq-question {
  min-height: 76px;
  font-size: 14px;
}

.faq-page-list .faq-answer p {
  font-size: 12px;
}

.inline-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 30px;
  border: 1px solid #cddff7;
  border-radius: var(--radius);
  background: var(--soft-blue);
}

.inline-cta h2 {
  margin: 0;
  font-size: 23px;
}

.inline-cta p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 10px;
}

/* Typography: Chinese-first font stack and more readable type scale */
h1,
h2,
h3,
strong {
  font-family:
    "HarmonyOS Sans SC", MiSans, "Noto Sans SC", "Source Han Sans SC",
    "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.brand-copy {
  line-height: 1.16;
}

.brand-copy strong {
  font-size: 17px;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.brand-copy span {
  font-size: 11px;
  letter-spacing: 0.04em;
}

.desktop-nav a,
.mobile-nav a {
  font-size: 14px;
  font-weight: 600;
}

.button {
  min-height: 47px;
  font-size: 14px;
  font-weight: 700;
}

.button-small {
  min-height: 39px;
  font-size: 13px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.hero-copy h1 {
  font-weight: 780;
  letter-spacing: -0.025em;
}

.hero-tagline {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.5;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.9;
}

.hero-proof {
  min-height: 34px;
  font-size: 12px;
  font-weight: 600;
}

.bridge-head {
  font-size: 12px;
}

.status-badge,
.example-badge,
.soft-badge {
  font-size: 11px;
}

.visual-label {
  font-size: 14px;
}

.source-row strong,
.tool-row strong {
  font-size: 13px;
}

.source-row small,
.tool-row small {
  font-size: 10px;
}

.mcp-core strong {
  font-size: 12px;
}

.mcp-core small,
.bridge-foot {
  font-size: 10px;
}

.section-heading h2,
.split-copy h2 {
  font-size: clamp(38px, 4.2vw, 52px);
  font-weight: 750;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

/* 首页各板块名称使用统一的标题级视觉层级。 */
.section-heading > .eyebrow,
.split-copy > .eyebrow {
  gap: 11px;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: clamp(21px, 2vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0;
}

.section-heading > .eyebrow .eyebrow-line,
.split-copy > .eyebrow .eyebrow-line {
  width: 32px;
  height: 3px;
  flex: 0 0 auto;
}

.section-dark .section-heading > .eyebrow,
.section-dark .split-copy > .eyebrow {
  color: #d9e9ff;
}

.section-heading > p:last-child,
.split-copy > p {
  font-size: 16px;
  line-height: 1.9;
}

.advantage-card {
  min-height: 255px;
}

.number-label,
.scene-number {
  font-size: 12px;
}

.advantage-card h3,
.person-card h3,
.scope-item h3,
.example-card h2 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
}

.advantage-card p,
.person-card p,
.scope-item p {
  font-size: 14px;
  line-height: 1.85;
}

.scene-card summary {
  min-height: 302px;
}

.scene-card h3 {
  font-size: 20px;
  font-weight: 700;
}

.scene-card p {
  font-size: 14px;
  line-height: 1.85;
}

.scene-question {
  font-size: 13px;
  line-height: 1.7;
}

.scene-expand {
  font-size: 11px;
}

.scene-result {
  font-size: 13px;
  line-height: 1.8;
}

.person-card {
  min-height: 245px;
}

.person-role {
  font-size: 12px;
}

.column-head h3 {
  font-size: 28px;
  font-weight: 720;
}

.column-head p {
  font-size: 13px;
  line-height: 1.75;
}

.scope-item {
  min-height: 150px;
}

.scope-item h3 {
  font-size: 15px;
}

.scope-item p {
  font-size: 12px;
  line-height: 1.75;
}

.column-note {
  font-size: 12px;
  line-height: 1.75;
}

.preview-step > span {
  font-size: 11px;
}

.preview-step strong {
  font-size: 15px;
}

.preview-step p {
  font-size: 12px;
  line-height: 1.75;
}

.tab-button {
  font-size: 13px;
}

.tab-panel h3 {
  font-size: 22px;
  font-weight: 700;
}

.tab-panel > p {
  font-size: 14px;
  line-height: 1.85;
}

.mini-step {
  min-height: 56px;
  font-size: 13px;
}

.mini-step span {
  font-size: 10px;
}

.panel-link {
  font-size: 13px;
}

.demo-head strong,
.answer-title {
  font-size: 13px;
}

.question-bubble {
  font-size: 13px;
  line-height: 1.75;
}

.answer-box p {
  font-size: 12px;
  line-height: 1.8;
}

.answer-source {
  font-size: 10px;
}

.process-grid h2 {
  font-size: 26px;
  font-weight: 720;
}

.process-grid > div:first-child p {
  font-size: 12px;
}

.process-step strong {
  font-size: 13px;
}

.process-step small {
  font-size: 10px;
  line-height: 1.6;
}

.text-link {
  font-size: 14px;
}

.faq-question {
  min-height: 76px;
  font-size: 15px;
  font-weight: 700;
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.9;
}

.final-cta h2 {
  font-weight: 750;
  letter-spacing: -0.025em;
}

.final-cta p {
  font-size: 15px;
  line-height: 1.75;
}

.footer-brand p,
.footer-links strong,
.footer-links a {
  font-size: 13px;
}

.footer-bottom {
  font-size: 12px;
}

.breadcrumb {
  font-size: 12px;
}

.page-hero h1 {
  font-weight: 780;
  letter-spacing: -0.025em;
}

.page-hero .direct-answer {
  font-size: 17px;
  line-height: 1.95;
}

.hero-aside-card strong {
  font-size: 14px;
}

.hero-aside-card span {
  font-size: 12px;
  line-height: 1.65;
}

.page-toc strong,
.page-toc a {
  font-size: 12px;
}

.content-section h2 {
  font-size: 34px;
  font-weight: 730;
  line-height: 1.4;
}

.content-section > p {
  font-size: 15px;
  line-height: 1.9;
}

.check-card h3,
.info-card h3 {
  font-size: 16px;
}

.check-card p,
.info-card p {
  font-size: 13px;
  line-height: 1.8;
}

.instruction-list li,
.plain-list li {
  font-size: 14px;
  line-height: 1.85;
}

.instruction-list li > span,
.check-card > span {
  font-size: 10px;
}

.code-block {
  font-size: 12px;
  line-height: 1.8;
}

.copy-button {
  font-size: 10px;
}

.notice {
  font-size: 13px;
  line-height: 1.8;
}

.error-table,
.comparison-table {
  font-size: 13px;
}

.relation-node strong {
  font-size: 15px;
}

.relation-node small {
  font-size: 11px;
  line-height: 1.65;
}

.flow-card > span {
  font-size: 11px;
}

.flow-card h3 {
  font-size: 16px;
}

.flow-card p {
  font-size: 13px;
  line-height: 1.8;
}

.example-card-head h2 {
  font-size: 22px;
}

.example-question {
  font-size: 14px;
  line-height: 1.8;
}

.example-detail strong {
  font-size: 13px;
}

.example-detail p {
  font-size: 12px;
  line-height: 1.85;
}

.faq-page-list .faq-question {
  font-size: 16px;
}

.faq-page-list .faq-answer p {
  font-size: 14px;
}

.inline-cta h2 {
  font-size: 26px;
}

.inline-cta p {
  font-size: 13px;
  line-height: 1.7;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: 0.08s !important;
}

.reveal-delay-2 {
  transition-delay: 0.14s !important;
}

:focus-visible {
  outline: 3px solid rgba(36, 104, 229, 0.35);
  outline-offset: 3px;
}

@media (max-width: 1050px) {
  .hero-grid,
  .connect-preview-grid,
  .ask-grid,
  .split-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .bridge-visual,
  .tool-selector,
  .demo-card {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
  }

  .advantage-card {
    grid-column: span 3;
  }

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

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

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

  .hero-aside-card {
    max-width: 620px;
  }

  .content-layout {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 40px;
  }

  .example-card {
    grid-template-columns: 0.65fr 1.35fr;
  }
}

@media (max-width: 820px) {
  .desktop-nav,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .mobile-nav {
    padding: 8px 24px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
  }

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

  .mobile-nav a {
    padding: 12px 0;
    border-bottom: 1px solid #eef1f5;
  }

  .mobile-nav a:last-child {
    border-bottom: 0;
  }

  .faq-grid,
  .process-grid,
  .content-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .page-toc {
    position: static;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-toc strong {
    grid-column: 1 / -1;
  }

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

  .relationship-map {
    grid-template-columns: 1fr;
  }

  .relation-node {
    min-height: 92px;
  }

  .relation-arrow svg {
    transform: rotate(90deg);
  }

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

@media (max-width: 680px) {
  .shell {
    width: min(var(--shell), calc(100% - 32px));
  }

  .site-header {
    height: 64px;
  }

  .brand-mark {
    width: 33px;
    height: 33px;
  }

  .hero-section {
    min-height: auto;
  }

  .hero-grid {
    gap: 36px;
    padding: 52px 0 58px;
  }

  .hero-copy h1 {
    font-size: 45px;
  }

  .hero-tagline {
    font-size: 20px;
  }

  .hero-lead {
    font-size: 15px;
    line-height: 1.85;
  }

  .hero-actions,
  .final-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button,
  .final-actions .button {
    width: 100%;
  }

  .bridge-visual {
    padding: 14px;
    border-radius: 15px;
  }

  .bridge-stage {
    grid-template-columns: 1fr;
  }

  .source-card,
  .destination-card {
    min-height: 0;
  }

  .mcp-core {
    grid-template-columns: auto auto;
    align-items: center;
    justify-content: center;
  }

  .mcp-core::before,
  .mcp-core::after {
    display: none;
  }

  .core-orb {
    width: 50px;
    height: 50px;
    border-radius: 13px;
  }

  .core-orb svg {
    width: 23px;
    height: 23px;
  }

  .core-orb img {
    width: 50px;
    height: 50px;
    border-radius: 7px;
  }

  .mcp-core small {
    grid-column: 1 / -1;
  }

  .section {
    padding: 76px 0;
  }

  .section-heading {
    margin-bottom: 33px;
  }

  .section-heading h2,
  .split-copy h2 {
    font-size: 36px;
  }

  .section-heading > .eyebrow,
  .split-copy > .eyebrow {
    font-size: 21px;
  }

  .advantage-grid,
  .scene-grid,
  .people-grid,
  .dual-grid,
  .scope-list,
  .check-grid,
  .info-grid,
  .query-flow {
    grid-template-columns: 1fr;
  }

  .advantage-card {
    grid-column: auto;
  }

  .advantage-card {
    min-height: 205px;
  }

  .scene-card summary {
    min-height: auto;
  }

  .capability-column {
    padding: 21px;
    border-radius: 15px;
  }

  .column-head h3 {
    font-size: 24px;
  }

  .connect-preview-grid,
  .ask-grid {
    grid-template-columns: 1fr;
  }

  .tab-panel {
    padding: 22px 17px;
  }

  .demo-card .tab-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-step:not(:last-child)::after {
    display: none;
  }

  .final-cta-inner,
  .footer-main,
  .footer-bottom,
  .inline-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .footer-links {
    gap: 40px;
    padding-right: 0;
  }

  .page-hero {
    padding: 48px 0 50px;
  }

  .page-hero h1 {
    font-size: 42px;
  }

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

  .article-stack {
    gap: 58px;
  }

  .content-section h2 {
    font-size: 29px;
  }

  .light-tabs .tab-list {
    grid-template-columns: 1fr;
  }

  .example-card-body {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .example-detail,
  .example-detail:first-child,
  .example-detail:last-child {
    padding: 15px 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .example-detail:first-child {
    padding-top: 0;
    border-top: 0;
  }

  .error-table,
  .comparison-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

/* 首页紧凑节奏：减少重复留白，同时保留板块之间的呼吸感。 */
.home-page .hero-grid {
  padding-top: 68px;
  padding-bottom: 74px;
}

.home-page .section {
  padding-top: 82px;
  padding-bottom: 82px;
}

.home-page .section-heading {
  margin-bottom: 36px;
}

.home-page .advantage-card {
  min-height: 190px;
  padding: 22px;
}

.home-page .capability-column {
  padding: 26px;
}

.home-page .column-head {
  margin-bottom: 20px;
}

.home-page .scope-item {
  min-height: 124px;
  padding: 13px;
}

.home-page .scene-card-content {
  display: flex;
  flex: 1;
  height: 100%;
  min-height: 0;
  flex-direction: column;
  padding: 18px;
}

.home-page .scene-card-content .scene-top {
  margin-bottom: 16px;
}

.home-page .scene-card-content .scene-question {
  margin-top: auto;
  padding-top: 12px;
}

.home-page .person-card {
  min-height: 210px;
  padding: 21px;
}

.home-page .person-role {
  margin-bottom: 20px;
}

.mobile-section-toggle {
  display: none;
}

@media (max-width: 680px) {
  .home-page .hero-grid {
    padding-top: 46px;
    padding-bottom: 52px;
  }

  .home-page .section {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .home-page .section-heading {
    margin-bottom: 28px;
  }

  .home-page .section-heading > .eyebrow,
  .home-page .split-copy > .eyebrow {
    gap: 0;
    margin-bottom: 14px;
    font-size: 18px;
  }

  .home-page .eyebrow-line {
    display: none;
  }

  .home-page .section-heading h2,
  .home-page .split-copy h2 {
    font-size: 32px;
    line-height: 1.28;
    letter-spacing: -0.02em;
  }

  .home-page .section-heading h2.nowrap-heading {
    font-size: 20px;
    line-height: 1.4;
    white-space: nowrap;
  }

  .home-page .section-heading > p:last-child,
  .home-page .split-copy > p {
    font-size: 15px;
    line-height: 1.8;
  }

  .home-page .advantage-card {
    min-height: 180px;
    padding: 20px;
  }

  .home-page .hero-copy,
  .home-page .section-heading,
  .home-page .split-copy,
  .home-page .process-grid > div:first-child,
  .home-page .final-cta-inner > div:first-child {
    text-align: center;
  }

  .home-page .hero-copy {
    margin-right: auto;
    margin-left: auto;
  }

  .home-page .hero-copy .hero-lead,
  .home-page .section-heading > p:last-child,
  .home-page .split-copy > p,
  .home-page .process-grid > div:first-child p,
  .home-page .final-cta-inner > div:first-child p {
    margin-right: auto;
    margin-left: auto;
  }

  .home-page .hero-proofs {
    justify-content: center;
  }

  .home-page .section-heading > .eyebrow,
  .home-page .split-copy > .eyebrow {
    justify-content: center;
  }

  .home-page .scope-item {
    min-height: 116px;
  }

  .home-page .scene-card-content {
    padding: 18px;
  }

  .home-page .person-card {
    min-height: 190px;
  }

  .home-page .mobile-section-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 36px;
    margin-top: 18px;
    padding: 0 13px;
    border: 1px solid var(--line-strong);
    border-radius: 7px;
    color: var(--ink-2);
    background: rgba(255, 255, 255, 0.72);
    font: inherit;
    font-size: 13px;
    font-weight: 720;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
  }

  .home-page .mobile-section-toggle:hover,
  .home-page .mobile-section-toggle:focus-visible {
    border-color: var(--blue);
    color: var(--blue);
    background: #fff;
    outline: none;
  }

  .home-page .mobile-section-toggle svg {
    width: 15px;
    height: 15px;
    transition: transform 0.2s ease;
  }

  .home-page .mobile-section-expanded .mobile-section-toggle svg {
    transform: rotate(180deg);
  }

  .home-page .mobile-section-content {
    max-height: 0;
    margin-top: 0;
    padding: 0 !important;
    border-width: 0 !important;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: max-height 0.35s ease, margin-top 0.35s ease, opacity 0.2s ease;
  }

  .home-page .mobile-section-expanded .mobile-section-content {
    max-height: 6000px;
    margin-top: 28px;
    border-width: revert !important;
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  .home-page #connect-preview.mobile-section-expanded .mobile-section-content,
  .home-page #faq-preview.mobile-section-expanded .mobile-section-content {
    margin-top: 0;
  }

  .home-page #connect-preview.mobile-section-expanded .simple-use-card {
    padding: 22px !important;
    border-width: 1px !important;
  }

  .home-page #faq-preview.mobile-section-expanded .faq-list {
    border-top-width: 1px !important;
  }
}