@font-face {
  font-family: "IAM PuHuiTi";
  src: url("../webfonts/iam-puhuiti-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IAM PuHuiTi";
  src: url("../webfonts/iam-puhuiti-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
:root {
  color-scheme: light;
  --page-bg: #f7f8f9;
  --text: #333333;
  --muted: #777b82;
  --blue: #176cff;
  --content-width: 1400px;
  --header-height: 64px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}
body {
  margin: 0;
  color: var(--text);
  background: var(--page-bg);
  font-family:
    "IAM PuHuiTi", "Alibaba PuHuiTi 2.0", "PingFang SC", "Microsoft YaHei",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body,
h1,
h2,
h3,
p,
ul {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  cursor: pointer;
}
img {
  display: block;
  max-width: 100%;
}
svg {
  display: block;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
[hidden] {
  display: none !important;
}
:focus-visible {
  outline: 3px solid #176cff;
  outline-offset: 5px;
}
#main-content:focus,
section[tabindex="-1"]:focus {
  outline: none;
}
.page-container {
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  background: white;
  color: var(--blue);
  border-radius: 4px;
  transform: translateY(-150%);
}
.skip-link:focus {
  transform: translateY(0);
}
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgb(255 255 255 / 48%);
  transition:
    background-color 180ms,
    box-shadow 180ms;
}
.site-header.is-scrolled {
  background: #fff;
  box-shadow: 0 1px 8px rgb(24 51 99 / 9%);
}
.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 40px;
}
.brand {
  flex-shrink: 0;
}
.brand img {
  width: 210px;
  height: 50px;
}
.site-navigation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  gap: 24px;
  margin-left: 136px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 56px;
  white-space: nowrap;
}
.nav-links a {
  padding-block: 19px;
  font-size: 16px;
  transition: color 150ms;
}
.nav-links a:hover,
.nav-links a[aria-current] {
  color: var(--blue);
}
.nav-actions {
  display: flex;
  gap: 16px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 8px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 18px;
  line-height: 1.5;
  white-space: nowrap;
  transition:
    background-color 160ms,
    box-shadow 160ms;
}
.button:hover {
  box-shadow: 0 3px 12px rgb(28 90 176 / 18%);
}
.button-primary {
  color: #fff;
  background: linear-gradient(100deg, #4160ff, #4fabdb);
}
.button-primary:hover {
  background: linear-gradient(100deg, #2848eb, #309bd1);
}
.button-secondary {
  color: #333;
  background: #fff;
  border-color: #b7bbc2;
}
.button-secondary:hover {
  background: #f2f7ff;
  border-color: #5b85c4;
}
.button-group {
  display: flex;
  align-items: center;
  gap: 24px;
}
.button-header-primary,
.button-header-secondary {
  min-height: 38px;
  padding: 5px 18px;
  font-size: 16px;
  gap: 8px;
  border-radius: 4px;
}
.button-header-primary {
  color: #fff;
  background: var(--blue);
}
.button-header-secondary {
  color: var(--blue);
  border-color: #6fa2ff;
  background: rgb(255 255 255 / 72%);
}
.button-header-primary:hover {
  background: #075ae8;
}
.menu-toggle {
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid #dce3ef;
  background: #fff;
  border-radius: 6px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: #333;
}
.hero-section {
  min-height: 600px;
  background-color: #ecf4ff;
  background-image:
    radial-gradient(
      ellipse 720px 650px at calc(50% - 836px) 600px,
      rgb(187 197 249 / 72%),
      transparent 85%
    ),
    url("../images/home/hero.webp");
  background-repeat: no-repeat;
  background-position:
    center,
    calc(50% - 22px) -117px;
  background-size:
    auto,
    2050px 811px;
}
.hero-content {
  padding-top: 151px;
  padding-bottom: 60px;
}
.hero-content h1 {
  max-width: 860px;
  font-size: 80px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: 0;
}
.hero-content p {
  max-width: 860px;
  margin-top: 20px;
  color: #9096a6;
  font-size: 24px;
  line-height: 1.5;
}
.hero-content .button-group {
  margin-top: 24px;
  padding-left: 4px;
}
.section-heading {
  text-align: center;
}
.section-heading h2,
.security-intro h2 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.4;
}
.section-heading p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 24px;
  line-height: 1.5;
}
.features-section {
  padding: 100px 0 137px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
  margin-top: 116px;
}
.feature-card {
  position: relative;
  min-height: 364px;
  padding: 203px 32px 38px;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  box-shadow: 0 5px 14px rgb(36 72 116 / 3%);
}
.feature-art {
  position: absolute;
  top: -31px;
  left: 50%;
  width: 155px;
  height: 172px;
  object-fit: contain;
  transform: translateX(-50%);
}
.feature-card h3 {
  font-size: 18px;
  line-height: 1.5;
  font-weight: 700;
}
.feature-card p {
  margin-top: 30px;
  color: #858990;
  font-size: 14px;
  line-height: 1.65;
}
.security-section {
  min-height: 737px;
  padding: 94px 0 80px;
  color: #f4f7ff;
  background:
    linear-gradient(rgb(0 0 0 / 54%), rgb(0 0 0 / 54%)),
    #020910 url("../images/home/security.webp") center top / cover no-repeat;
}
.security-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 160px;
}
.security-intro h2 {
  white-space: nowrap;
}
.security-intro > p {
  margin-top: 20px;
  font-size: 16px;
  line-height: 1.6;
  color: #c4c9d4;
}
.certifications {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 28px;
  list-style: none;
  padding: 0;
  margin: 48px 0;
  color: #ccd3df;
  font-size: 14px;
}
.certifications li,
.check-list li {
  position: relative;
  padding-left: 22px;
}
.certifications li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  display: grid;
  place-items: center;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(130deg, #4b82ff, #55cbe8);
  font: 10px/1 sans-serif;
}
.certifications li::after,
.check-list li::after {
  content: "";
  position: absolute;
  left: 4px;
  top: calc(0.4em + 2px);
  width: 5px;
  height: 8px;
  border: solid #fff;
  border-width: 0 1px 1px 0;
  transform: rotate(40deg);
}
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}
.security-card {
  min-height: 260px;
  padding: 36px 32px 28px;
  background: linear-gradient(40deg, #15151b 18%, #2a3358 100%);
  border: 1px solid #454c60;
  border-radius: 8px;
}
.security-card img {
  width: 70px;
  height: 70px;
  object-fit: contain;
  margin: -6px 0 16px -8px;
}
.security-card h3 {
  font-size: 20px;
  line-height: 1.5;
}
.security-card p {
  margin-top: 16px;
  color: #a8acb8;
  font-size: 14px;
  line-height: 1.6;
}
.scenarios-section {
  padding: 132px 0 135px;
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 70px 26px;
  margin-top: 80px;
}
.scenario-card {
  min-height: 420px;
  overflow: hidden;
  background: #fff;
  border-radius: 8px;
}
.scenario-banner {
  width: 100%;
  height: 110px;
  object-fit: cover;
}
.scenario-content {
  padding: 32px 40px 30px;
}
.scenario-content h3 {
  font-size: 24px;
  line-height: 1.4;
}
.scenario-content > p {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.65;
}
.check-list {
  display: grid;
  gap: 16px;
  list-style: none;
  margin-top: 34px;
  padding: 0;
  font-size: 16px;
}
.advantages-section {
  min-height: 720px;
  padding: 64px 0;
  background:
    linear-gradient(rgb(247 248 249 / 20%), rgb(247 248 249 / 20%)),
    url("../images/home/technology.webp") calc(50% + 119px) top / 2357px 738px
      no-repeat;
}
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 88px 28px;
  margin-top: 54px;
  text-align: center;
}
.advantage-icon {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin: 0 auto;
  border: 1px solid #fff;
  border-radius: 16px;
  background: #e8effc;
}
.advantage-icon img {
  width: 54px;
  height: 54px;
  object-fit: contain;
}
.advantage-item h3 {
  margin-top: 18px;
  font-size: 20px;
  line-height: 1.4;
}
.advantage-item p {
  max-width: 286px;
  margin: 10px auto 0;
  font-size: 14px;
  line-height: 1.6;
}
.cta-section {
  margin-top: 192px;
  min-height: 404px;
  padding: 98px 0 82px;
  text-align: center;
  background: #e9f3ff url("../images/home/cta.webp") center center / 2172px
    724px no-repeat;
}
.cta-section h2 {
  font-size: 48px;
  line-height: 1.4;
}
.cta-section p {
  margin-top: 16px;
  font-size: 16px;
}
.cta-section .button-group {
  justify-content: center;
  margin-top: 34px;
}
.site-footer {
  min-height: 440px;
  padding-top: 70px;
  color: #a2abbb;
  background:
    linear-gradient(transparent 0, #000 330px),
    #000 url("../images/home/footer.webp") left top / 3207px 1019px no-repeat;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 100px;
  min-height: 227px;
}
.footer-brand {
  width: 470px;
  max-width: 100%;
}
.footer-brand img {
  width: 210px;
  height: 50px;
}
.footer-brand p {
  margin-top: 24px;
  font-size: 16px;
  line-height: 1.8;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 76px;
  padding-top: 2px;
}
.footer-links h2 {
  margin-bottom: 16px;
  color: #e3e9f6;
  font-size: 16px;
  line-height: 1.5;
}
.footer-links a,
.footer-links span {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  white-space: nowrap;
}
.site-footer a:hover {
  color: #fff;
}
.site-footer :focus-visible,
.security-section :focus-visible {
  outline-color: #7bbbff;
}
.footer-bottom {
  min-height: 143px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid #3c4046;
  font-size: 12px;
  color: #959ba6;
}
.footer-bottom > div {
  display: flex;
  align-items: center;
  gap: 24px;
}
.footer-bottom > div > * + * {
  padding-left: 24px;
  border-left: 1px solid #383b42;
}
@media (max-width: 1599px) {
  .site-navigation {
    margin-left: auto;
  }
  .nav-links {
    gap: 32px;
  }
  .hero-content h1 {
    font-size: clamp(52px, 4.167vw, 80px);
    max-width: 60%;
  }
  .hero-content p {
    font-size: 20px;
    max-width: 61%;
  }
  .hero-section {
    background-position:
      center,
      calc(50% - 22px) -80px;
    background-size:
      auto,
      max(1550px, 106.77vw) auto;
  }
  .security-layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 64px;
  }
  .security-grid {
    gap: 28px;
  }
  .security-intro h2 {
    font-size: 36px;
  }
  .footer-links {
    gap: 56px;
  }
}
@media (max-width: 1199px) {
  .page-container {
    width: calc(100% - 48px);
  }
  .header-inner {
    gap: 28px;
  }
  .brand img {
    width: 168px;
    height: 40px;
  }
  .nav-links {
    gap: 20px;
  }
  .nav-links a,
  .button-header-primary,
  .button-header-secondary {
    font-size: 14px;
  }
  .nav-actions {
    gap: 10px;
  }
  .button-header-primary,
  .button-header-secondary {
    padding-inline: 12px;
  }
  .hero-section {
    min-height: 550px;
    background-position:
      center,
      calc(50% - 120px) -40px;
    background-size:
      auto,
      1400px auto;
  }
  .hero-content {
    padding-top: 148px;
  }
  .hero-content h1 {
    font-size: 52px;
  }
  .hero-content p {
    font-size: 18px;
  }
  .desktop-break {
    display: none;
  }
  .features-section {
    padding: 80px 0;
  }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 104px 24px;
    margin-top: 112px;
  }
  .feature-card {
    min-height: 300px;
    padding-top: 168px;
  }
  .feature-card p {
    margin-top: 20px;
    max-width: 300px;
    margin-inline: auto;
  }
  .security-section {
    padding-block: 80px;
  }
  .security-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .security-intro {
    max-width: 660px;
  }
  .certifications {
    max-width: 380px;
    margin: 28px 0;
  }
  .security-grid {
    gap: 24px;
  }
  .security-card {
    min-height: 238px;
  }
  .scenarios-section {
    padding: 80px 0;
  }
  .scenario-grid {
    gap: 32px 24px;
    margin-top: 48px;
  }
  .scenario-content {
    padding: 28px;
  }
  .scenario-content > p {
    min-height: 80px;
  }
  .advantages-section {
    padding-block: 64px;
  }
  .advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 56px 24px;
  }
  .cta-section {
    margin-top: 80px;
    padding-block: 80px;
    min-height: 350px;
  }
  .footer-main {
    gap: 56px;
    padding-bottom: 56px;
  }
  .footer-brand {
    width: 330px;
  }
  .footer-links {
    gap: 28px;
  }
  .footer-bottom {
    min-height: 100px;
  }
}
@media (max-width: 767px) {
  .page-container {
    width: calc(100% - 40px);
  }
  .site-header {
    background: #fff;
  }
  .header-inner {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0;
  }
  .brand img {
    width: 168px;
    height: 40px;
  }
  .site-navigation {
    width: 100%;
    flex: 0 0 100%;
    align-items: stretch;
    flex-direction: column;
    gap: 16px;
    margin: 0;
    padding: 12px 0 20px;
    max-height: calc(100dvh - 64px);
    overflow-y: auto;
    border-top: 1px solid #e8edf5;
  }
  .nav-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 20px;
  }
  .nav-links a {
    padding: 12px 0;
    font-size: 16px;
  }
  .nav-actions {
    display: flex;
  }
  .nav-actions .button {
    flex: 1;
    min-height: 44px;
  }
  .hero-section {
    min-height: 730px;
    background-image: url("../images/home/hero.webp");
    background-size: 1190px auto;
    background-position: calc(50% - 273px) bottom;
    background-color: #edf4ff;
  }
  .hero-content {
    padding-top: 112px;
    padding-bottom: 360px;
  }
  .hero-content h1 {
    max-width: 100%;
    font-size: clamp(36px, 9.7vw, 52px);
    line-height: 1.4;
  }
  .hero-content p {
    max-width: 100%;
    margin-top: 20px;
    font-size: 16px;
    line-height: 1.75;
    color: #68758a;
  }
  .hero-content .button-group {
    margin-top: 24px;
    padding: 0;
  }
  .button {
    font-size: 16px;
    min-height: 44px;
    padding: 9px 18px;
    gap: 8px;
  }
  .button-group {
    gap: 12px;
    flex-wrap: wrap;
  }
  .section-heading h2,
  .security-intro h2 {
    font-size: 30px;
  }
  .section-heading p {
    font-size: 16px;
    margin-top: 14px;
    line-height: 1.75;
  }
  .features-section {
    padding: 64px 0;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 100px;
    margin-top: 106px;
  }
  .feature-card {
    min-height: 290px;
    padding: 158px 28px 32px;
  }
  .feature-art {
    width: 180px;
    height: 180px;
  }
  .feature-card h3 {
    font-size: 20px;
  }
  .feature-card p {
    color: #727985;
    font-size: 15px;
    margin-top: 18px;
  }
  .security-section {
    padding: 64px 0;
  }
  .security-layout {
    gap: 36px;
  }
  .security-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .security-card {
    min-height: 225px;
    padding: 28px;
  }
  .security-card p {
    font-size: 15px;
  }
  .scenarios-section {
    padding-block: 64px;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 36px;
  }
  .scenario-card {
    min-height: 0;
  }
  .scenario-banner {
    height: 90px;
  }
  .scenario-content {
    padding: 26px;
  }
  .scenario-content h3 {
    font-size: 22px;
  }
  .scenario-content > p {
    min-height: 0;
    font-size: 15px;
    line-height: 1.8;
  }
  .check-list {
    margin-top: 26px;
    gap: 14px;
    font-size: 15px;
  }
  .advantages-section {
    padding: 56px 0;
    background-size: auto 100%;
    background-position: center;
  }
  .advantage-grid {
    grid-template-columns: 1fr;
    gap: 44px;
    margin-top: 40px;
  }
  .advantage-item p {
    max-width: 280px;
    font-size: 15px;
  }
  .cta-section {
    min-height: 0;
    margin-top: 48px;
    padding: 64px 0;
    background-size: auto 100%;
  }
  .cta-section h2 {
    font-size: 32px;
  }
  .cta-section p {
    max-width: 320px;
    margin: 20px auto 0;
    font-size: 15px;
  }
  .cta-section .button-group {
    margin-top: 28px;
  }
  .site-footer {
    padding-top: 48px;
    background-size: auto 650px;
  }
  .footer-main {
    flex-direction: column;
    gap: 36px;
    padding-bottom: 40px;
  }
  .footer-brand {
    width: 100%;
    max-width: 400px;
  }
  .footer-brand p {
    margin-top: 20px;
    font-size: 15px;
  }
  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }
  .footer-links a,
  .footer-links span {
    font-size: 14px;
    margin-top: 12px;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 28px;
    gap: 20px;
  }
  .footer-bottom > div {
    gap: 16px;
  }
  .footer-bottom > div > * + * {
    padding-left: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}