.about-page {
  min-width: 320px;
}

.about-page main {
  display: block;
}

.about-page .about-topbar {
  position: sticky;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  height: calc(3.75 * var(--page-vw));
  min-height: 58px;
  align-items: center;
  padding-left: 19.348958%;
  padding-right: 18.854167%;
  background: #fff;
  box-shadow: 0 calc(0.15625 * var(--page-vw)) calc(0.625 * var(--page-vw)) rgba(31, 67, 126, 0.1);
}

.about-topbar-home {
  display: block;
  flex: 0 0 auto;
  width: 22.578151%;
}

.about-page .about-topbar .topbar-logo {
  width: 100%;
  height: auto;
}

.about-hero {
  position: relative;
  display: grid;
  width: 100%;
  height: 296px;
  place-items: center;
  overflow: hidden;
  background: #eaf7ff url("https://web.douxiaobao.com/www_assets_v2/about/hero-background.jpg") center calc(50% + calc(2 * var(--page-vw))) / cover no-repeat;
}

.about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(236, 249, 255, 0.1));
  pointer-events: none;
}

.about-hero-content {
  position: relative;
  z-index: 1;
  padding-bottom: 8px;
  text-align: center;
}

.about-hero h1 {
  margin: 0;
  color: #121b39;
  font-size: clamp(52px, calc(3.541667 * var(--page-vw)), 68px);
  font-weight: 700;
  line-height: 1.2;
}

.about-hero h1 span,
.about-hero h1 strong {
  display: inline-block;
}

.about-hero h1 strong {
  margin-left: 0.28em;
  color: #3476ff;
  font-weight: inherit;
}

.about-hero-content p {
  margin: 22px 0 0;
  color: #3e4a63;
  font-size: clamp(17px, calc(1.197917 * var(--page-vw)), 23px);
  line-height: 1.5;
}

.company-section {
  padding: 78px 24px 92px;
  background: #fff;
}

.about-section-heading {
  text-align: center;
}

.about-section-heading h2 {
  margin: 0;
  color: #111a37;
  font-size: clamp(38px, calc(2.604167 * var(--page-vw)), 50px);
  font-weight: 700;
  line-height: 1.3;
}

.about-section-heading p {
  margin: 13px 0 0;
  color: #77839b;
  font-size: clamp(15px, calc(0.9375 * var(--page-vw)), 18px);
  line-height: 1.6;
}

.company-grid {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 476px) minmax(0, 1fr);
  align-items: center;
  gap: 64px;
  margin: 62px auto 0;
}

.company-copy h3 {
  margin: 0 0 30px;
  color: #151d38;
  font-size: clamp(25px, calc(1.666667 * var(--page-vw)), 32px);
  font-weight: 700;
  line-height: 1.45;
}

.company-copy p {
  margin: 0 0 22px;
  color: #4a5872;
  font-size: clamp(13px, calc(0.833333 * var(--page-vw)), 16px);
  line-height: 2;
  text-align: justify;
}

.company-copy p:last-child {
  margin-bottom: 0;
}

.company-figure {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 16px 34px rgba(34, 76, 141, 0.13);
}

.company-figure img {
  width: 100%;
  height: auto;
}

.mission-section {
  width: min(1180px, 100%);
  margin: 104px auto 0;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 17px;
  margin-top: 54px;
}

.mission-item {
  min-height: 286px;
  padding: 34px 20px 30px;
  border: 1px solid #e5ebf5;
  border-radius: 14px;
  background: #fff;
  text-align: center;
  box-shadow: 0 10px 26px rgba(34, 76, 141, 0.07);
}

.mission-icon {
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  margin: 0 auto;
  border-radius: 50%;
  background-color: #edf4fe;
  box-shadow: 0 12px 30px rgba(61, 102, 205, 0.08);
}

.mission-icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.mission-item h3 {
  margin: 21px 0 11px;
  color: #1b1e27;
  font-size: 20px;
  font-weight: 800;
  line-height: 31px;
}

.mission-item p {
  margin: 0;
  color: #525869;
  font-size: 14px;
  line-height: 23px;
}

@media (max-width: 1400px) {
  .about-page .about-topbar {
    height: 58px;
  }

  .about-page .nav-button {
    height: 40px;
    font-size: 14px;
  }

  .about-page .nav-button-light {
    width: 101px;
  }

  .about-page .nav-button-primary {
    width: 111px;
  }
}

@media (min-width: 901px) and (max-width: 1024px) {
  .about-page .about-topbar {
    padding: 0 5%;
  }
}

@media (max-width: 900px) {
  html {
    scroll-padding-top: clamp(54px, calc(12 * var(--page-vw)), 76px);
  }

  .about-page .about-topbar {
    height: clamp(54px, calc(12 * var(--page-vw)), 76px);
    min-height: 0;
    padding: 0 5%;
    box-shadow: 0 2px 14px rgba(31, 67, 126, 0.1);
  }

  .about-topbar-home {
    width: min(calc(57.75 * var(--page-vw)), 290px);
  }

  .about-page .topbar-actions {
    gap: 0;
  }

  .about-page .nav-button-light {
    display: none;
  }

  .about-page .nav-button-primary {
    width: min(calc(20 * var(--page-vw)), 112px);
    height: min(calc(9.5 * var(--page-vw)), 46px);
    border-radius: min(calc(1.5 * var(--page-vw)), 8px);
    font-size: min(calc(4 * var(--page-vw)), 18px);
  }

  .about-hero {
    height: 340px;
    background-position: center;
  }

  .about-hero-content {
    padding: 0 24px 4px;
  }

  .about-hero h1 {
    font-size: clamp(42px, calc(12 * var(--page-vw)), 54px);
  }

  .about-hero-content p {
    max-width: 580px;
    margin: 17px auto 0;
    font-size: clamp(16px, calc(4.5 * var(--page-vw)), 21px);
  }

  .company-section {
    padding: 56px 24px 72px;
  }

  .about-section-heading h2 {
    font-size: clamp(30px, calc(8.5 * var(--page-vw)), 42px);
  }

  .about-section-heading p {
    margin-top: 8px;
    font-size: clamp(14px, calc(3.7 * var(--page-vw)), 17px);
  }

  .company-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    margin-top: 38px;
  }

  .company-copy h3 {
    margin-bottom: 19px;
    font-size: clamp(22px, calc(6 * var(--page-vw)), 29px);
    text-align: center;
  }

  .company-copy p {
    margin-bottom: 15px;
    font-size: clamp(14px, calc(3.7 * var(--page-vw)), 16px);
    line-height: 1.9;
  }

  .company-figure {
    border-radius: 6px;
  }

  .mission-section {
    margin-top: 72px;
  }

  .mission-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 36px;
  }

  .mission-item {
    min-height: 250px;
    padding: 28px 14px 24px;
  }

  .mission-icon {
    width: 80px;
    height: 80px;
  }

  .mission-icon img {
    width: 40px;
    height: 40px;
  }

  .mission-item h3 {
    margin: 17px 0 8px;
    font-size: 19px;
    line-height: 28px;
  }

  .mission-item p {
    font-size: 12px;
    line-height: 22px;
  }
}

@media (max-width: 480px) {
  .about-hero {
    height: calc(70 * var(--page-vw));
    min-height: 280px;
    max-height: 340px;
  }

  .about-hero h1 {
    font-size: calc(11 * var(--page-vw));
  }

  .about-hero-content p {
    margin-top: calc(3 * var(--page-vw));
    font-size: calc(4 * var(--page-vw));
    line-height: 1.7;
  }

  .company-section {
    padding: calc(12 * var(--page-vw)) calc(5 * var(--page-vw)) calc(16 * var(--page-vw));
  }

  .about-section-heading h2 {
    font-size: calc(8 * var(--page-vw));
  }

  .about-section-heading p {
    font-size: calc(3.6 * var(--page-vw));
  }

  .company-grid {
    gap: calc(7 * var(--page-vw));
    margin-top: calc(9 * var(--page-vw));
  }

  .company-copy h3 {
    margin-bottom: calc(4 * var(--page-vw));
    font-size: calc(5.7 * var(--page-vw));
  }

  .company-copy p {
    margin-bottom: calc(3.5 * var(--page-vw));
    font-size: calc(3.6 * var(--page-vw));
  }

  .mission-section {
    margin-top: calc(15 * var(--page-vw));
  }

  .mission-grid {
    gap: calc(2 * var(--page-vw));
    margin-top: calc(8 * var(--page-vw));
  }

  .mission-item {
    min-height: calc(58 * var(--page-vw));
    padding: calc(6 * var(--page-vw)) calc(2.5 * var(--page-vw)) calc(5 * var(--page-vw));
  }

  .mission-icon {
    width: calc(20 * var(--page-vw));
    height: calc(20 * var(--page-vw));
  }

  .mission-icon img {
    width: calc(10 * var(--page-vw));
    height: calc(10 * var(--page-vw));
  }

  .mission-item h3 {
    margin: calc(4.25 * var(--page-vw)) 0 calc(2 * var(--page-vw));
    font-size: calc(4.75 * var(--page-vw));
    line-height: calc(7 * var(--page-vw));
  }

  .mission-item p {
    margin: 0;
    font-size: calc(3 * var(--page-vw));
    line-height: calc(5.5 * var(--page-vw));
  }
}

@media (prefers-reduced-motion: reduce) {
  .about-page *,
  .about-page *::before,
  .about-page *::after {
    scroll-behavior: auto !important;
  }
}