.as-home-hero {
    --as-hero-navy: #203f67;
    --as-hero-navy-dark: #172f4e;
    --as-hero-teal: #0799a5;
    --as-hero-teal-dark: #087f8a;
    --as-hero-title: #172334;
    --as-hero-body: #556271;
    --as-hero-muted: #74808d;
    --as-hero-border: #dfe6eb;
    --as-hero-light: #f3f6f8;

    width: 100%;
    padding: 58px 24px 70px;
    overflow: hidden;
    background: #ffffff;
    box-sizing: border-box;
  }

  .as-home-hero,
  .as-home-hero * {
    box-sizing: border-box;
  }

  .as-home-hero__container {
    width: 100%;
    max-width: 1240px;
    min-height: 570px;
    margin: 0 auto;
    display: grid;
    grid-template-columns:
      minmax(0, 0.94fr)
      minmax(480px, 1.06fr);
    gap: 68px;
    align-items: center;
  }

  /* ===============================
  左侧内容
  =============================== */

  .as-home-hero__content {
    min-width: 0;
    padding: 16px 0;
  }

  .as-home-hero__title {
    max-width: 650px;
    margin: 0;
    color: var(--as-hero-title);
    font-size: clamp(43px, 4.3vw, 59px);
    font-weight: 740;
    line-height: 1.09;
    letter-spacing: -0.035em;
  }

  .as-home-hero__description {
    max-width: 650px;
    margin-top: 26px;
  }

  .as-home-hero__description p {
    margin: 0 0 12px;
    color: var(--as-hero-body);
    font-size: 16px;
    line-height: 1.72;
  }

  .as-home-hero__description p:last-child {
    margin-bottom: 0;
  }

  /* ===============================
  按钮
  =============================== */

  .as-home-hero__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
    margin-top: 33px;
  }

  .as-home-hero__button {
    min-height: 55px;
    padding: 14px 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 17px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
    text-decoration: none !important;
    transition:
      background-color 0.2s ease,
      border-color 0.2s ease,
      color 0.2s ease,
      transform 0.2s ease,
      box-shadow 0.2s ease;
  }

  .as-home-hero__button--primary {
    color: #ffffff !important;
    background: var(--as-hero-teal);
    border-color: var(--as-hero-teal);
    box-shadow: 0 13px 28px rgba(7, 153, 165, 0.2);
  }

  .as-home-hero__button--primary:hover,
  .as-home-hero__button--primary:focus-visible {
    color: #ffffff !important;
    background: var(--as-hero-teal-dark);
    border-color: var(--as-hero-teal-dark);
    transform: translateY(-2px);
    box-shadow: 0 17px 32px rgba(7, 153, 165, 0.25);
  }

  .as-home-hero__button--secondary {
    color: var(--as-hero-navy) !important;
    background: #ffffff;
    border-color: #b9c5cf;
  }

  .as-home-hero__button--secondary:hover,
  .as-home-hero__button--secondary:focus-visible {
    color: var(--as-hero-navy-dark) !important;
    background: var(--as-hero-light);
    border-color: var(--as-hero-navy);
    transform: translateY(-2px);
  }

  .as-home-hero__button:focus-visible {
    outline: 3px solid rgba(7, 153, 165, 0.25);
    outline-offset: 4px;
  }

  .as-home-hero__button-arrow {
    flex: 0 0 auto;
    transition: transform 0.2s ease;
  }

  .as-home-hero__button--primary:hover
  .as-home-hero__button-arrow {
    transform: translateX(4px);
  }

  /* ===============================
  信任信息
  =============================== */

  .as-home-hero__proof {
    max-width: 670px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 38px;
    padding-top: 24px;
    border-top: 1px solid var(--as-hero-border);
  }

  .as-home-hero__proof-item {
    min-width: 0;
    padding: 0 18px;
    border-right: 1px solid var(--as-hero-border);
  }

  .as-home-hero__proof-item:first-child {
    padding-left: 0;
  }

  .as-home-hero__proof-item:last-child {
    padding-right: 0;
    border-right: 0;
  }

  .as-home-hero__proof-item strong {
    display: block;
    color: var(--as-hero-title);
    font-size: 14px;
    font-weight: 750;
    line-height: 1.4;
  }

  .as-home-hero__proof-item span {
    display: block;
    margin-top: 3px;
    color: var(--as-hero-muted);
    font-size: 11px;
    line-height: 1.45;
  }

  /* ===============================
  右侧图片区域
  =============================== */

  .as-home-hero__media {
    position: relative;
    min-width: 0;
    padding: 0 42px 50px 0;
  }

  .as-home-hero__main-frame {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: #e9eef2;
  }

  .as-home-hero__main-image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.012);
    transition:
      opacity 0.7s ease,
      visibility 0.7s ease,
      transform 5.6s ease;
  }

  .as-home-hero__main-image.is-active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }

  /* 小型工程图卡片 */

  .as-home-hero__detail-card {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 41%;
    min-width: 220px;
    padding: 8px;
    background: #ffffff;
    box-shadow: 0 20px 45px rgba(20, 43, 69, 0.2);
  }

  .as-home-hero__detail-viewport {
    position: relative;
    width: 100%;
    height: 142px;
    overflow: hidden;
    background: #e9eef2;
  }

  .as-home-hero__detail-image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    visibility: hidden;
    transition:
      opacity 0.55s ease,
      visibility 0.55s ease;
  }

  .as-home-hero__detail-image.is-active {
    opacity: 1;
    visibility: visible;
  }

  .as-home-hero__detail-text {
    padding: 11px 8px 6px;
  }

  .as-home-hero__detail-text strong {
    display: block;
    color: var(--as-hero-navy);
    font-size: 12px;
    font-weight: 750;
    line-height: 1.4;
  }

  .as-home-hero__detail-text span {
    display: block;
    margin-top: 3px;
    color: var(--as-hero-muted);
    font-size: 10px;
    line-height: 1.45;
  }


  /* 同步轮播圆点 */

  .as-home-hero__carousel-dots {
    position: absolute;
    z-index: 4;
    top: 18px;
    right: 60px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 9px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    background: rgba(23, 47, 78, 0.58);
    backdrop-filter: blur(6px);
  }

  .as-home-hero__carousel-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.48);
    cursor: pointer;
    transition:
      width 0.2s ease,
      border-radius 0.2s ease,
      background-color 0.2s ease;
  }

  .as-home-hero__carousel-dot.is-active {
    width: 22px;
    border-radius: 999px;
    background: var(--as-hero-teal);
  }

  .as-home-hero__carousel-dot:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
  }

  /* 16+经验卡片 */

  .as-home-hero__experience-card {
    position: absolute;
    left: 24px;
    bottom: 24px;
    z-index: 2;
    max-width: 225px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 18px;
    color: #ffffff;
    background: var(--as-hero-navy);
    box-shadow: 0 15px 32px rgba(18, 41, 68, 0.24);
  }

  .as-home-hero__experience-card strong {
    flex: 0 0 auto;
    font-size: 30px;
    font-weight: 750;
    line-height: 1;
  }

  .as-home-hero__experience-card span {
    font-size: 10px;
    font-weight: 650;
    line-height: 1.45;
  }

  /* ===============================
  中等屏幕
  =============================== */

  @media (max-width: 1100px) {
    .as-home-hero__container {
      grid-template-columns:
        minmax(0, 0.95fr)
        minmax(420px, 1.05fr);
      gap: 45px;
    }

    .as-home-hero__title {
      font-size: 43px;
    }

    .as-home-hero__main-frame {
      height: 460px;
    }
  }

  /* ===============================
  平板
  =============================== */

  @media (max-width: 900px) {
    .as-home-hero {
      padding: 52px 22px 65px;
    }

    .as-home-hero__container {
      min-height: 0;
      grid-template-columns: 1fr;
      gap: 48px;
    }

    .as-home-hero__content {
      max-width: 760px;
      padding: 0;
    }

    .as-home-hero__title {
      max-width: 700px;
      font-size: 45px;
    }

    .as-home-hero__media {
      width: 100%;
      max-width: 760px;
    }

    .as-home-hero__main-frame {
      height: 500px;
    }
  }

  /* ===============================
  手机端
  =============================== */

  @media (max-width: 640px) {
    .as-home-hero {
      padding: 39px 17px 52px;
    }

    .as-home-hero__container {
      gap: 39px;
    }

    .as-home-hero__title {
      font-size: 34px;
      line-height: 1.15;
      letter-spacing: -0.025em;
    }

    .as-home-hero__description {
      margin-top: 20px;
    }

    .as-home-hero__description p {
      font-size: 14px;
      line-height: 1.7;
    }

    .as-home-hero__actions {
      display: grid;
      gap: 11px;
      margin-top: 28px;
    }

    .as-home-hero__button {
      width: 100%;
      min-height: 53px;
      padding: 13px 16px;
    }

    .as-home-hero__button--primary {
      justify-content: space-between;
      text-align: left;
    }

    .as-home-hero__proof {
      grid-template-columns: 1fr;
      gap: 13px;
      margin-top: 29px;
      padding-top: 21px;
    }

    .as-home-hero__proof-item,
    .as-home-hero__proof-item:first-child,
    .as-home-hero__proof-item:last-child {
      padding: 0;
      border-right: 0;
    }

    .as-home-hero__proof-item {
      display: grid;
      grid-template-columns: 105px minmax(0, 1fr);
      gap: 10px;
      align-items: baseline;
    }

    .as-home-hero__proof-item span {
      margin-top: 0;
    }

    .as-home-hero__media {
      padding: 0 18px 68px 0;
    }

    .as-home-hero__main-frame {
      height: 340px;
    }

    .as-home-hero__detail-card {
      width: 55%;
      min-width: 170px;
      padding: 6px;
    }

    .as-home-hero__detail-viewport {
      height: 100px;
    }

    .as-home-hero__detail-text {
      padding: 8px 6px 4px;
    }

    .as-home-hero__detail-text strong {
      font-size: 10px;
    }

    .as-home-hero__detail-text span {
      display: none;
    }

    .as-home-hero__carousel-dots {
      top: 11px;
      right: 29px;
      gap: 6px;
      padding: 6px 8px;
    }

    .as-home-hero__carousel-dot {
      width: 7px;
      height: 7px;
    }

    .as-home-hero__carousel-dot.is-active {
      width: 18px;
    }

    .as-home-hero__experience-card {
      left: 11px;
      bottom: 22px;
      max-width: 188px;
      padding: 11px 13px;
    }

    .as-home-hero__experience-card strong {
      font-size: 24px;
    }

    .as-home-hero__experience-card span {
      font-size: 9px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .as-home-hero__button,
    .as-home-hero__button-arrow,
    .as-home-hero__main-image,
    .as-home-hero__detail-image,
    .as-home-hero__carousel-dot {
      transition: none;
    }
  }