:root {
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --font-number: "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --blue: #1457eb;
  --blue-dark: #082ea3;
  --ink: #0f1729;
  --muted: #5c6b85;
  --line: #dbe5f5;
  --paper: #f6f9fe;
  --shadow: 0 16px 18px rgba(5, 20, 56, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
}

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

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

button {
  font: inherit;
}

h1,
h2,
h3,
.tag {
  margin: 0;
  font-family: var(--font-display);
}

p {
  margin: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  min-height: 84px;
  padding: 0 96px;
  background: #fff;
  box-shadow: 0 16px 18px rgba(5, 20, 56, 0.04);
}

.logo-link {
  display: block;
  width: 155px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.logo-link:hover {
  opacity: 0.86;
  transform: translateY(-1px);
}

.main-nav,
.header-actions,
.header-right,
.button-row,
.qr-row {
  display: flex;
  align-items: center;
}

.header-right {
  justify-content: flex-end;
  gap: 40px;
  margin-left: auto;
}

.main-nav {
  gap: 40px;
  font-size: 15px;
}

.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 84px;
  color: var(--ink);
  transition: color 0.2s ease;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  border-radius: 21px;
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--blue);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.header-actions {
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 32px;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 16px 18px rgba(5, 20, 56, 0.11);
}

.btn-primary:hover {
  background: #0d46c6;
  box-shadow: 0 20px 28px rgba(20, 87, 235, 0.25);
}

.btn-ghost,
.btn-light {
  color: var(--blue);
  background: #fff;
  border-color: var(--line);
}

.btn-ghost:hover,
.btn-light:hover {
  border-color: var(--blue);
  box-shadow: 0 14px 24px rgba(20, 87, 235, 0.12);
}

.hero {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 660px;
  padding: 40px 64px 40px 96px;
  color: #fff;
  background: linear-gradient(90deg, #05217a 0%, #0a52f5 100%);
}

.hero-copy {
  width: min(700px, 52vw);
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 24px;
  color: var(--blue);
  background: #ebf5ff;
  border-radius: 21px;
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
}

.tag-dark {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.hero h1 {
  margin-top: 20px;
  font-size: 56px;
  font-weight: 900;
  line-height: 72px;
}

.hero p {
  width: min(600px, 100%);
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 32px;
}

.button-row {
  gap: 16px;
  margin-top: 72px;
}

.hero-visual {
  width: 580px;
  height: 580px;
  object-fit: contain;
}

.section {
  padding: 96px;
}

.section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 72px;
}

.section-head.compact {
  margin-bottom: 40px;
}

.section-head h2,
.download h2,
.partners h2,
.contact h2,
footer h2 {
  color: var(--ink);
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
}

.section-head p,
.download p,
.partners p,
.contact p,
footer p {
  color: var(--muted);
  font-size: 18px;
  line-height: 32px;
}

.business-grid,
.case-grid {
  display: grid;
  gap: 20px;
}

.business-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 13px;
}

.card,
.case-grid article,
.about-detail-section article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover,
.case-grid article:hover,
.about-detail-section article:hover,
.product-card:hover,
.about-highlight:hover {
  border-color: rgba(20, 87, 235, 0.45);
  box-shadow: 0 22px 36px rgba(5, 20, 56, 0.12);
  transform: translateY(-4px);
}

.card {
  min-height: 184px;
  padding: 32px;
}

.figma-icon {
  position: relative;
  display: block;
  width: 44px;
  height: 44px;
  margin-bottom: 15px;
}

.figma-icon-stack img {
  position: absolute;
  display: block;
}

.figma-icon-stack .icon-bg {
  inset: 0;
  width: 44px;
  height: 44px;
}

.figma-icon-stack .icon-fg {
  object-fit: contain;
}

.figma-icon-stack .ai-fg {
  top: 8px;
  left: 8px;
  width: 28px;
  height: 28px;
}

.figma-icon-stack .platform-fg {
  top: 12px;
  left: 12px;
  width: 20px;
  height: 20px;
}

.card h3,
.product-card h3,
.case-grid h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
}

.card p,
.product-card p,
.case-grid p {
  margin-top: 15px;
  color: var(--muted);
  font-size: 15px;
  line-height: 26px;
}

.advantage-section {
  display: flex;
  align-items: center;
  gap: 96px;
  padding: 108px 96px;
  background: #fff;
}

.advantage-copy {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  min-width: 0;
}

.advantage-copy h2 {
  color: var(--ink);
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
}

.advantage-copy p {
  color: var(--muted);
  font-size: 18px;
  line-height: 32px;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px 70px;
  width: 470px;
}

.advantage-grid article {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-height: 92px;
}

.advantage-grid strong {
  display: block;
  color: var(--blue);
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  line-height: 38px;
}

.advantage-grid span {
  display: block;
  color: var(--muted);
  font-size: 15px;
  line-height: 24px;
}

.advantage-grid .line {
  display: block;
  width: 200px;
  height: 8px;
  margin-top: 22px;
}

.line-cyan-blue {
  background: linear-gradient(90deg, #7be8f1 0%, #5d73ff 100%);
}

.line-cyan-warm {
  background: linear-gradient(90deg, #39d1df 0%, #6c84ff 58%, #ff8b65 100%);
}

.line-green {
  background: linear-gradient(90deg, #9ff5c4 0%, #90f4c1 100%);
}

.line-pink {
  background: linear-gradient(90deg, #f59acb 0%, #e7f2ff 100%);
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.product-card {
  display: flex;
  align-items: center;
  gap: 96px;
  min-height: 296px;
  padding: 48px 56px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.product-card > div {
  flex: 1 1 0;
  min-width: 0;
}

.product-title {
  display: flex;
  align-items: center;
  gap: 16px;
}

.product-title h3 {
  color: var(--ink);
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
  white-space: nowrap;
}

.product-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 24px;
  color: #fff;
  background: var(--blue);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  white-space: nowrap;
}

.product-card img {
  flex: 0 0 auto;
  width: 440px;
  height: 200px;
  object-fit: contain;
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
}

.mini-tags b {
  padding: 8px 24px;
  color: var(--blue);
  background: #ebf5ff;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 500;
  line-height: 22px;
}

.download {
  display: flex;
  align-items: center;
  gap: 96px;
  padding: 96px;
  color: #fff;
  background: var(--blue-dark);
}

.download h2,
.partners h2,
footer h2 {
  color: #fff;
}

.download h2 {
  font-size: 56px;
  font-weight: 900;
  line-height: 72px;
}

.partners h2 {
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
}

.download p,
.partners p,
footer p {
  color: rgba(255, 255, 255, 0.86);
}

.download p,
.partners p {
  font-size: 18px;
  line-height: 32px;
}

.download-copy {
  display: flex;
  flex-direction: column;
  gap: 24px;
  flex: 1 1 0;
  min-width: 0;
}

.qr-row {
  flex: 0 0 auto;
  gap: 48px;
}

.qr-card {
  position: relative;
  width: 216px;
  height: 248px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 32px;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(5, 20, 56, 0.07);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.qr-card:hover {
  background: #fff;
  border-color: var(--line);
  box-shadow: 0 16px 36px rgba(5, 20, 56, 0.07);
}

.qr-corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 68px;
  height: 68px;
}

.qr-platform-corner {
  position: absolute;
  top: 10px;
  left: 158px;
  width: 48px;
  height: 48px;
}

.qr-normal {
  position: absolute;
  inset: 0;
  transition: opacity 0.18s ease;
}

.qr-icon {
  position: absolute;
  top: 53px;
  left: 60px;
  width: 96px;
  height: 96px;
  object-fit: contain;
}

.qr-icon-ios {
  top: 54px;
  left: 70px;
  width: 76px;
  height: 89px;
}

.qr-hover-image {
  position: absolute;
  top: 24px;
  left: 24px;
  width: 168px;
  height: 168px;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.18s ease;
}

.qr-card:hover .qr-normal {
  opacity: 0;
}

.qr-card:hover .qr-hover-image {
  opacity: 1;
}

.qr-card strong {
  position: absolute;
  top: 176px;
  left: 0;
  display: block;
  width: 100%;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 28px;
  text-align: center;
  transition: top 0.18s ease;
}

.qr-card:hover strong {
  top: 200px;
}

.update-section {
  display: flex;
  align-items: center;
  gap: 96px;
  padding: 45px 111px 45px 88px;
  background: #fff;
}

.update-copy {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  min-width: 0;
}

.update-title-row {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.update-title-row h2 {
  color: var(--ink);
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
  white-space: nowrap;
}

.update-title-row span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 24px;
  color: #fff;
  background: var(--blue);
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  white-space: nowrap;
}

.update-copy p {
  width: 100%;
  color: var(--muted);
  font-size: 18px;
  line-height: 32px;
}

.update-visual {
  position: relative;
  flex: 0 0 auto;
  width: 320px;
  height: 240px;
  overflow: hidden;
  background: #fff;
}

.update-visual img {
  position: absolute;
  max-width: none;
}

.u-ellipse-7 {
  top: -20px;
  left: 14px;
  width: 272px;
  height: 272px;
}

.u-ellipse-2 {
  top: 32px;
  left: 66px;
  width: 168px;
  height: 168px;
}

.u-ellipse-5 {
  top: 54px;
  left: 88px;
  width: 124px;
  height: 124px;
}

.u-ellipse-3 {
  top: 69px;
  left: 103px;
  width: 94px;
  height: 94px;
}

.u-ellipse-4 {
  top: 83px;
  left: 117px;
  width: 66px;
  height: 66px;
}

.u-refresh {
  top: 100px;
  left: 134px;
  width: 32px;
  height: 32px;
}

.u-dot {
  width: 26px;
  height: 26px;
}

.dot-1 {
  top: 44px;
  left: 78px;
}

.dot-2 {
  top: 104px;
  left: 218px;
}

.dot-3 {
  top: 174px;
  left: 92px;
}

.u-label {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-start;
  justify-content: center;
  padding: 8px 16px;
  color: #fff;
  text-align: center;
  white-space: nowrap;
  background: linear-gradient(124deg, #4980f9 0%, #8eb8ff 101.77%);
  border-radius: 2px;
  text-shadow: 0 2px 4px #2f6beb;
}

.u-label strong {
  font-size: 15px;
  font-weight: 600;
  line-height: 22px;
}

.u-label small {
  font-size: 14px;
  line-height: 22px;
}

.label-left {
  top: 85px;
  left: 4px;
}

.label-top {
  top: 32px;
  left: 200px;
}

.label-bottom {
  top: 156px;
  left: 157px;
}

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

.case-grid article {
  position: relative;
  height: 230px;
  overflow: hidden;
  min-height: 230px;
  padding: 32px;
  background: transparent;
}

.case-card-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.case-grid h3,
.case-grid p {
  position: relative;
  z-index: 1;
}

.case-grid h3 {
  width: min(300px, 100%);
}

.case-grid p {
  width: min(310px, 100%);
}

.partners {
  display: flex;
  gap: 96px;
  align-items: center;
  padding: 96px;
  color: #fff;
  background: var(--blue-dark);
}

.partners > div {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.partners img {
  width: 544px;
  height: 212px;
  object-fit: contain;
}

.about-intro {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 96px;
  background: #fff;
}

.about-intro .section-head {
  margin-bottom: 0;
}

.about-intro img {
  width: 280px;
  height: 192px;
  object-fit: cover;
  border-radius: 4px;
}

.about-detail-section {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 96px;
}

.about-column {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  gap: 20px;
  align-self: stretch;
}

.about-detail-section article {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 114px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
}

.about-detail-section span {
  display: block;
  color: var(--muted);
  font-size: 15px;
  line-height: 26px;
}

.about-detail-section strong {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 34px;
}

.about-highlight {
  flex: 1 1 0;
  align-self: stretch;
  color: #fff;
  background: var(--blue-dark) !important;
  border-color: var(--blue-dark) !important;
}

.about-highlight strong {
  margin-top: 0;
  font-size: 32px;
  line-height: 44px;
}

.about-highlight p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 32px;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 96px;
  background: #fff;
}

.contact h2 {
  color: var(--ink);
  font-size: 36px;
  font-weight: 700;
  line-height: 48px;
}

.contact p {
  margin-top: 20px;
  color: var(--muted);
  font-size: 18px;
  line-height: 32px;
}

footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 96px;
  padding: 96px;
  color: #fff;
  background: var(--blue-dark);
}

footer h2 {
  width: 420px;
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
}

footer p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  line-height: 26px;
  white-space: nowrap;
}

footer nav {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  font-size: 15px;
}

footer a {
  opacity: 0.9;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

footer a:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.toast {
  position: fixed;
  right: 32px;
  bottom: 32px;
  z-index: 30;
  padding: 14px 20px;
  color: #fff;
  pointer-events: none;
  background: rgba(15, 23, 41, 0.92);
  border-radius: 4px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .site-header {
    flex-wrap: wrap;
    gap: 12px 24px;
    padding: 12px 32px;
  }

  .main-nav a {
    height: 42px;
  }

  .header-right {
    flex: 1 1 100%;
    flex-wrap: wrap;
    gap: 16px 32px;
  }

  .hero,
  .advantage-section,
  .update-section,
  .download,
  .partners,
  .contact,
  footer {
    padding: 64px 32px;
  }

  .section {
    padding: 64px 32px;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-copy {
    width: 100%;
  }

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

  .advantage-section,
  .product-card,
  .download,
  .about-intro,
  .about-detail-section {
    align-items: flex-start;
    flex-direction: column;
  }

  .advantage-grid {
    width: 100%;
  }

  .product-card {
    gap: 40px;
  }

  .update-section {
    align-items: flex-start;
    flex-direction: column;
    gap: 40px;
  }

  .update-title-row {
    flex-wrap: wrap;
  }

  footer p {
    white-space: normal;
  }
}

@media (max-width: 760px) {
  .site-header,
  .header-right,
  .main-nav,
  .header-actions,
  .download,
  .partners,
  .contact,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav,
  footer nav {
    gap: 18px;
    flex-wrap: wrap;
  }

  .hero h1 {
    font-size: 38px;
    line-height: 50px;
  }

  .hero-visual {
    width: 100%;
    height: auto;
  }

  .section-head h2,
  .download h2,
  .partners h2,
  .contact h2 {
    font-size: 30px;
    line-height: 48px;
  }

  .update-title-row h2 {
    font-size: 30px;
    line-height: 48px;
  }

  .business-grid,
  .case-grid,
  .advantage-grid {
    grid-template-columns: 1fr;
  }

  .product-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-card img,
  .partners img {
    width: 100%;
    height: auto;
  }

  .qr-row {
    flex-wrap: wrap;
  }
}