.about-modules-page {
  --about-blue: #000000;
  --about-ink: #000000;
  --about-muted: #70819a;
  padding-top: var(--header-height, 96px);
  background: #fff;
  color: var(--about-ink);
  font-family: "Company Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.about-modules-page .about-section {
  /* 首页也使用 .about-section；此处保留独立页面的纵向区块布局。 */
  display: block;
  grid-template-columns: none;
  min-height: 0;
  padding: 88px 0;
}

.about-section-inner {
  width: min(1390px, calc(100% - 80px));
  margin: 0 auto;
}

.about-profile {
  padding-top: 76px;
  background:
    radial-gradient(circle at 93% 10%, rgba(8, 108, 240, .08), transparent 27%),
    linear-gradient(180deg, #f8fbff 0, #fff 100%);
}

.about-profile-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
  gap: clamp(42px, 7vw, 110px);
  align-items: center;
}

.about-modules-page .about-copy {
  /* 不继承首页图文模块的 flex 布局和大块内边距。 */
  display: block;
  min-width: 0;
  padding: 0;
}

.about-section-kicker {
  margin: 0 0 10px;
  color: #91a0b5;
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}

.about-section h1,
.about-section h2 {
  margin: 0;
  color: var(--about-ink);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.25;
}

.about-section h1 span,
.about-section h2 span {
  color: var(--about-blue);
}

.about-heading-line {
  display: block;
  width: 42px;
  height: 3px;
  margin: 17px 0 22px;
  background: var(--about-blue);
}

.about-lead-copy {
  color: var(--about-ink) !important;
  font-size: 19px !important;
  font-weight: 700;
  line-height: 1.8 !important;
}

.about-copy > p:not(.about-section-kicker) {
  max-width: none;
  margin: 0 0 15px;
  color: var(--about-muted);
  font-size: 15px;
  line-height: 2;
}

.about-profile-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 27px;
}

.about-profile-stats div {
  padding: 15px 12px;
  border-left: 2px solid var(--about-blue);
  background: #fff;
  box-shadow: 0 8px 25px rgba(24, 72, 125, .07);
}

.about-profile-stats strong,
.about-profile-stats span {
  display: block;
}

.about-profile-stats strong {
  color: var(--about-blue);
  font-family: Arial, sans-serif;
  font-size: 28px;
  line-height: 1.15;
}

.about-profile-stats span {
  margin-top: 5px;
  color: var(--about-muted);
  font-size: 12px;
}

.about-image-slot {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(8, 108, 240, .08), rgba(245, 249, 253, .95)),
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(8, 108, 240, .05) 23px 24px);
  box-shadow: 0 20px 50px rgba(20, 63, 111, .1);
}

.about-image-slot::after {
  position: absolute;
  right: 22px;
  bottom: 19px;
  left: 22px;
  padding: 11px 14px;
  border: 1px dashed rgba(8, 108, 240, .35);
  color: rgba(16, 39, 70, .55);
  content: attr(data-slot-label);
  font-size: 13px;
  text-align: center;
}

.about-image-slot > img {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image-slot > img:not([src]),
.about-image-slot > img[src=""] {
  display: none;
}

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

.about-section-heading .about-heading-line {
  margin-right: auto;
  margin-left: auto;
}

.about-section-heading > p:last-child {
  margin: 0;
  color: var(--about-muted);
  font-size: 15px;
  line-height: 1.8;
}

.about-history {
  border-top: 1px solid #edf2f8;
  background: #fff;
}

.about-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 58px;
}

.about-timeline::before {
  position: absolute;
  top: 20px;
  right: 7%;
  left: 7%;
  height: 1px;
  background: #d8e3f0;
  content: "";
}

.about-timeline-item {
  position: relative;
  min-width: 0;
  padding: 0 14px;
  text-align: center;
}

.about-timeline-index {
  color: var(--about-blue);
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
}

.about-timeline-dot {
  position: relative;
  z-index: 1;
  width: 13px;
  height: 13px;
  margin: 10px auto 21px;
  border: 3px solid #fff;
  border-radius: 50%;
  background: var(--about-blue);
  box-shadow: 0 0 0 1px var(--about-blue);
}

.about-timeline-item h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.about-timeline-item p {
  margin: 0;
  color: var(--about-muted);
  font-size: 14px;
  line-height: 1.9;
}

.about-advantages {
  background: #f7faff;
}

.about-advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 45px;
}

.about-info-card {
  min-height: 220px;
  padding: 28px 24px;
  border: 1px solid #e5edf6;
  background: #fff;
  box-shadow: 0 10px 25px rgba(24, 72, 125, .05);
  transition: transform .2s, box-shadow .2s;
}

.about-info-card:hover {
  box-shadow: 0 16px 30px rgba(24, 72, 125, .12);
  transform: translateY(-4px);
}

.about-card-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 50%;
  color: var(--about-blue);
  background: #eaf3ff;
}

.about-card-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.about-card-icon img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: contain;
}

.about-info-card h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.about-info-card p {
  margin: 0;
  color: var(--about-muted);
  font-size: 14px;
  line-height: 1.9;
}

.about-services {
  background: #fff;
}

.about-services-layout {
  display: grid;
  grid-template-columns: minmax(360px, .9fr) minmax(0, 1.1fr);
  gap: clamp(42px, 7vw, 100px);
  align-items: center;
  margin-top: 48px;
}

.about-service-image {
  min-height: 430px;
}

.about-service-list {
  display: grid;
  gap: 18px;
}

.about-service-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 21px 0;
  border-bottom: 1px solid #e5edf6;
}

.about-service-item > span {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--about-blue);
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  overflow: hidden;
}

.about-service-item > span img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: contain;
}

.about-service-item h3 {
  margin: 0 0 8px;
  color: var(--about-ink);
  font-size: 19px;
}

.about-service-item p {
  margin: 0;
  color: var(--about-muted);
  font-size: 14px;
  line-height: 1.9;
}

@media (max-width: 600px) {
  .about-modules-page .about-section {
    padding: 55px 0;
  }

  .about-section-inner {
    width: calc(100% - 32px);
  }

  .about-profile {
    padding-top: 50px;
  }

  .about-profile-grid,
  .about-services-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-section h1,
  .about-section h2 {
    font-size: 34px;
  }

  .about-heading-line {
    width: 32px;
    height: 2px;
    margin: 13px 0 17px;
  }

  .about-section-heading .about-heading-line {
    margin-right: auto;
    margin-left: auto;
  }

  .about-lead-copy {
    font-size: 16px !important;
  }

  .about-copy > p:not(.about-section-kicker),
  .about-section-heading > p:last-child,
  .about-info-card p,
  .about-service-item p,
  .about-timeline-item p {
    font-size: 13px;
    line-height: 1.85;
  }

  .about-profile-stats {
    gap: 8px;
  }

  .about-profile-stats div {
    padding: 12px 8px;
  }

  .about-profile-stats strong {
    font-size: 21px;
  }

  .about-profile-stats span {
    font-size: 10px;
  }

  .about-image-slot,
  .about-service-image {
    min-height: 245px;
  }

  .about-image-slot::after {
    right: 12px;
    bottom: 12px;
    left: 12px;
    padding: 8px 10px;
    font-size: 11px;
  }

  .about-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 10px;
    margin-top: 36px;
  }

  .about-timeline::before {
    display: none;
  }

  .about-timeline-item {
    padding: 0 5px;
  }

  .about-timeline-dot {
    margin-bottom: 15px;
  }

  .about-timeline-item h3,
  .about-info-card h3,
  .about-service-item h3 {
    font-size: 16px;
  }

  .about-advantage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 30px;
  }

  .about-info-card {
    min-height: 205px;
    padding: 20px 13px;
  }

  .about-card-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 13px;
  }

  .about-card-icon svg {
    width: 21px;
    height: 21px;
  }

  .about-services-layout {
    margin-top: 30px;
  }

  .about-service-list {
    gap: 5px;
  }

  .about-service-item {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    padding: 15px 0;
  }

  .about-service-item > span {
    width: 38px;
    height: 38px;
    font-size: 11px;
  }
}

/* ==========================================================================
   关于我们页：整页黑色 + 固定背景墙 01.jpg
   - 背景墙用 background-attachment: fixed：图按视口铺满、钉在视口上，
     页面怎么滚动它都不动（这就是"固定在背景墙里面"的效果）。
   - 上面压一层 70% 黑色，图片只作底纹可见，文字对比度仍在 12:1 以上。
   - 这里重定义三个变量：正文白、次要文字浅灰、强调色改成品牌橙
     （原来是 #000000，深色底上会完全看不见；橙既能当文字色，
      也能当时间轴圆点、服务编号这些小元素的底色，一次性都解决）。
   - 四个模块本身改成透明，让背景墙在整页连续透上来、不被分段截断。
   - style.css 里有 main { background: var(--theme-dark) !important }（#666666），
     必须用 !important 才能盖掉，否则分区之间的空隙会露出灰底。
   ========================================================================== */

.about-modules-page {
  --about-ink: #ffffff;
  --about-muted: rgba(255, 255, 255, 0.7);
  --about-blue: #ff6a00;
  background:
    linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)),
    url("../imga/01.jpg") center center / cover no-repeat #000 !important;
  /* 注意：上面的 background 简写带了 !important，会把 background-attachment
     一并重置成 scroll !important，所以这里必须也加 !important 才压得住。 */
  background-attachment: fixed !important;
  color: var(--about-ink);
}

/* 四个模块改为透明，背景墙才能连续贯穿整页 */
.about-modules-page .about-profile {
  background: none;
}

.about-modules-page .about-history {
  border-top-color: rgba(255, 255, 255, 0.1);
  background: transparent;
}

.about-modules-page .about-advantages {
  background: transparent;
}

.about-modules-page .about-services {
  background: transparent;
}

/* 分区小标题（COMPANY PROFILE / COMPANY HISTORY…） */
.about-modules-page .about-section-kicker {
  color: rgba(255, 255, 255, 0.5);
}

/* 公司简介：数据卡与配图占位 */
.about-modules-page .about-profile-stats div {
  border-left-color: var(--about-blue);
  background: #141414;
}

.about-modules-page .about-image-slot {
  background:
    linear-gradient(135deg, rgba(255, 106, 0, 0.1), rgba(20, 20, 20, 0.96)),
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(255, 255, 255, 0.04) 23px 24px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.about-modules-page .about-image-slot::after {
  border-color: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.5);
}

/* 公司历史：时间轴横线与圆点 */
.about-modules-page .about-timeline::before {
  background: rgba(255, 255, 255, 0.16);
}

.about-modules-page .about-timeline-dot {
  border-color: #000;
}

/* 我们的优势：信息卡与图标底色 */
.about-modules-page .about-info-card {
  border-color: rgba(255, 255, 255, 0.1);
  background: #141414;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.45);
}

.about-modules-page .about-info-card:hover {
  border-color: rgba(255, 106, 0, 0.45);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.6);
}

.about-modules-page .about-card-icon {
  background: rgba(255, 106, 0, 0.14);
}

/* 我们的服务：列表分隔线 */
.about-modules-page .about-service-item {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

@media (max-width: 700px) {
  .about-modules-page .page-hero {
    height: calc(var(--header-height) + clamp(170px, 45vw, 260px)) !important;
    min-height: 0 !important;
    background: #000;
  }

  .about-modules-page .page-hero > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .about-modules-page .page-hero-content {
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    transform: none;
    padding: 16px 18px 12px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.88));
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
  }

  .about-modules-page .page-hero-content p {
    margin: 0 0 4px;
    color: #ff6a00;
    font: 700 11px/1.2 Arial, sans-serif;
    letter-spacing: 0;
  }

  .about-modules-page .page-hero-content h1 {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0;
  }

  .about-modules-page .page-hero-content span {
    margin-top: 6px;
    color: #fff;
    font-size: 12px;
    line-height: 1.4;
    letter-spacing: 0;
    opacity: 1;
  }

  .about-modules-page .page-hero-overlay {
    display: block;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.24) var(--header-height), transparent calc(var(--header-height) + 50px));
  }

  .about-modules-page .page-hero-backdrop {
    display: none;
  }
}

@media (max-width: 360px) {
  .about-modules-page .page-hero-content {
    padding: 12px 14px 10px;
  }

  .about-modules-page .page-hero-content h1 {
    font-size: 26px;
  }

  .about-modules-page .page-hero-content span {
    font-size: 11px;
  }
}