* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue: #1677ff;
  --blue-deep: #0d58ff;
  --cyan: #19d7ff;
  --purple: #9158ff;
  --text: #111827;
  --sub: #5f6f8c;
  --header-height: 58px;
}

body {
  min-width: 320px;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: #eef6ff;
}

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

.container {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

/* 头部固定比例布局 */
.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
}

/* 头部内部不再使用 container 的 1080px 限制 */
.site-header .header-inner {
  width: 100%;
  max-width: none;
  margin: 0;

  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;

  /* 关键：左右间距按照 2048 设计稿比例缩放 */
  padding-left: calc(120 / 2048 * 100vw);
  padding-right: calc(120 / 2048 * 100vw);
}

/* 左侧 Logo 区域 */
.brand {
  display: flex;
  align-items: center;
  gap: calc(10 / 2048 * 100vw);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

/* 你的 logo 是图片，所以不要再用伪元素画 logo */
.brand-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  display: block;
  border-radius: 0;
  background: none;
  box-shadow: none;
  overflow: visible;
}

.mini-logo {
  position: relative;
  display: inline-block;
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, #20b7ff 0%, #2a77ff 45%, #8ffb86 100%);
  box-shadow: 0 8px 20px rgba(26, 119, 255, 0.25);
  overflow: hidden;
}

.brand-logo::before,
.brand-logo::after {
  display: none;
}

.mini-logo::before,
.mini-logo::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 5px;
  width: 7px;
  height: 18px;
  border-radius: 6px;
  background: #fff;
  transform: rotate(42deg);
}

.brand-logo::after,
.mini-logo::after {
  left: 13px;
  background: rgba(202, 255, 218, 0.95);
  transform: rotate(-42deg);
}

/* 右侧导航 */
.nav {
  display: flex;
  align-items: center;
  gap: calc(64 / 2048 * 100vw);
  height: 100%;
  font-size: 14px;
  font-weight: 700;
}

.nav-link {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  color: #1d2735;
  transition: color 0.2s ease;
}

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

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 25px;
  height: 3px;
  border-radius: 999px;
  background: var(--blue);
  transform: translateX(-50%);
}

.hero-copy h1 {
  line-height: 1.18;
  letter-spacing: -1px;
}

/* ================= 第一部分：首屏 ================= */

.hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #eef6ff;
}

/* 固定比例画布：i76.png 跟随浏览器宽度等比缩放 */
.hero-canvas {
  position: relative;
  width: 100vw;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
}

.hero-bg-img {
  width: 100%;
  height: auto;
  display: block;
}

/* 左侧文案层：跟背景图一起缩放 */
.hero-copy {
  position: absolute;
  z-index: 3;

  /* 这两个值控制文案在背景图上的位置 */
  left: 14.25%;
  top: 25.5%;

  width: 31%;
}

/* 主标题第一行 */
.hero-copy h1 {
  line-height: 1.18;
  letter-spacing: -0.05vw;
}

.hero-copy h1 span {
  display: inline-block;
  margin-bottom: 0.65vw;

  font-size: 2.65vw;
  font-weight: 900;

  background: linear-gradient(
    90deg,
    #00ccff 0%,
    #00ccff 5%,
    #0a53ff 60%,
    #cf5fff 90%,
    #cf5fff 100%
  );

  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* 主标题第二行 */
.hero-copy h1 strong {
  display: block;
  font-size: 2.35vw;
  font-weight: 900;
  color: #111111;
}

/* 标题下面横线 */
.title-line {
  width: 4.2vw;
  height: 0.1vw;
  min-height: 2px;
  margin: 1vw 0 1.05vw;
  background: #111111;
  opacity: 0.88;
}

/* 描述文字 */
.hero-copy p {
  color: #444375;
  font-size: 1vw;
  line-height: 1.7;
  letter-spacing: 0.02vw;
  white-space: nowrap;
}

/* 下载按钮 */
.download-grid {
  width: 20.5vw;
  margin-top: 2.7vw;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.95vw 1.15vw;
  position: relative;
  z-index: 45;
  pointer-events: auto;
}

.download-btn {
  height: 2.15vw;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.42vw;
  border-radius: 999px;
  color: #ffffff;
  font-size: 0.78vw;
  font-weight: 700;
  background: linear-gradient(90deg, #2f9bff 0%, #1163ff 100%);
  box-shadow: 0 0.7vw 1.35vw rgba(22, 119, 255, 0.24);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;

  border: none;
  outline: none;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  z-index: 50;
  pointer-events: auto;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.9vw 1.55vw rgba(22, 119, 255, 0.32);
}

.download-icon {
  width: 0.9vw;
  height: 0.9vw;
  min-width: 15px;
  min-height: 15px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(22, 119, 255, 0.32);
}

.icon {
  width: 17px;
  height: 17px;
  display: inline-block;
  position: relative;
}

.icon.windows::before {
  content: "";
  position: absolute;
  inset: 2px;
  background:
    linear-gradient(
      90deg,
      transparent 46%,
      rgba(255, 255, 255, 0.9) 46% 55%,
      transparent 55%
    ),
    linear-gradient(
      0deg,
      transparent 46%,
      rgba(255, 255, 255, 0.9) 46% 55%,
      transparent 55%
    ),
    rgba(255, 255, 255, 0.9);
  clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 88%);
}

.icon.browser::before {
  content: "e";
  position: absolute;
  inset: -2px 0 0;
  font-family: Georgia, serif;
  font-size: 20px;
  line-height: 17px;
  color: #fff;
  font-weight: 700;
}

.icon.android::before {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  top: 6px;
  height: 9px;
  border-radius: 2px 2px 5px 5px;
  background: #fff;
}

.icon.android::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 7px;
  height: 6px;
  border-radius: 8px 8px 0 0;
  border-top: 2px solid #fff;
}

.icon.apple::before {
  content: "";
  position: absolute;
  inset: -2px 0 0;
  color: #fff;
  font-size: 19px;
  line-height: 17px;
}

.mini-logo {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}

.mini-logo::before,
.mini-logo::after {
  left: 5px;
  top: 3px;
  width: 5px;
  height: 13px;
}

.mini-logo::after {
  left: 9px;
}

.top-line {
  height: 18px;
  flex: 1;
  border-radius: 999px;
  background: rgba(245, 248, 252, 0.95);
}

.top-line.wide {
  flex: 2.8;
}

.float-service {
  position: fixed;
  z-index: 30;
  right: 14px;
  top: 52%;
  width: 48px;
  padding: 8px 6px 12px;
  border-radius: 24px;
  background: #17224d;
  color: #fff;
  text-align: center;
  box-shadow: 0 16px 34px rgba(28, 55, 119, 0.24);
}

.service-avatar {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fff;
  font-size: 22px;
}

.service-text {
  writing-mode: vertical-rl;
  margin: 0 auto;
  letter-spacing: 3px;
  font-size: 14px;
  font-weight: 700;
}

.download-grid {
  position: relative;
  z-index: 45;
  pointer-events: auto;
}

.download-btn {
  pointer-events: auto;
}

/* 右侧悬浮客服 */
.float-wrapper {
  position: fixed;
  right: 13px;
  top: 250px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  width: 70px;
}

.float-card {
  position: relative;
  width: 70px;
}

.float-card + .float-card {
  margin-top: 24px;
}

.float-expand {
  position: absolute;
  right: 80px;
  top: 30px;
  width: 130px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(10px);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    visibility 0.22s ease;
}

.float-card:hover .float-expand {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0);
}

.float-expand .inner {
  background: #fff;
  border-radius: 10px;
  padding: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.float-expand .label {
  font-size: 16px;
  font-weight: 600;
  color: #202020;
}

.float-expand .label-small {
  font-size: 12px;
}

.float-expand .desc {
  margin-top: 4px;
  font-size: 12px;
  color: #7b7f8a;
}

.float-expand .qr-img {
  width: 100px;
  height: 100px;
  border-radius: 10px;
  margin-top: 12px;
  object-fit: cover;
}

.float-btn {
  width: 70px;
  border-radius: 100px;
  padding: 6px 0 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  cursor: pointer;
}

.float-btn.dark {
  background: #1c1d37;
}

.float-btn.light {
  background: #fff;
}

.float-btn img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}

.float-btn .btn-text {
  font-size: 14px;
  font-weight: 700;
  margin-top: 12px;
  line-height: 1.4;
  text-align: center;
}

.float-btn.dark .btn-text {
  color: #fff;
}

.float-btn.light .btn-text {
  color: #202020;
}

/* 第二部分：核心功能介绍 */
.section-core {
  width: 100%;
  overflow: hidden;
  background: #eef6ff;
}

/* 固定比例画布：i77.png 原图尺寸 2048 × 946 */
.core-canvas {
  position: relative;
  width: 100vw;
  aspect-ratio: 2048 / 946;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
}

/* 背景图完整铺满画布，不裁切、不错位 */
.section-core-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: fill;
}

/* 顶部标题 */
.section-core-title {
  position: absolute;
  z-index: 2;
  top: calc(78 / 946 * 100%);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  white-space: nowrap;
}

.section-core-title h2 {
  margin: 0;
  color: #000000;
  font-size: calc(40 / 2048 * 100vw);
  font-weight: 700;
  line-height: 1.2;
}

.section-core-title p {
  margin-top: calc(12 / 2048 * 100vw);
  color: #7b7f8a;
  font-size: calc(20 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.4;
}

/* 右侧九宫格文字层 */
.core-feature-grid {
  position: absolute;
  z-index: 3;

  /* 按 i77.png 原图坐标定位 */
  left: calc(1291 / 2048 * 100%);
  top: calc(317 / 946 * 100%);
  width: calc(352 / 2048 * 100%);
  height: calc(367 / 946 * 100%);

  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);

  column-gap: calc(32 / 2048 * 100vw);
  row-gap: calc(17 / 2048 * 100vw);

  pointer-events: none;
}

.core-feature-grid span {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: calc(20 / 2048 * 100vw);

  color: #202020;
  font-size: calc(16 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

/* 咨询区域外层：覆盖在 i77 画布上 */
.core-consult-wrap {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
}

/* 蓝色咨询气泡文字 */
.core-consult-text {
  position: absolute;
  z-index: 9;

  /* 蓝色气泡在 i77.png 原图中的位置 */
  left: calc(1300 / 2048 * 100%);
  top: calc(724 / 946 * 100%);
  width: calc(182 / 2048 * 100%);
  height: calc(53 / 946 * 100%);

  display: flex;
  align-items: center;
  justify-content: center;

  color: #ffffff;
  font-size: calc(16 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1;
  white-space: nowrap;

  cursor: pointer;
  pointer-events: auto;
}

/* i69.png：右侧图标 */
.core-i69 {
  position: absolute;
  z-index: 9;

  /* 在气泡右边 */
  left: calc(1500 / 2048 * 100%);

  /* 控制 i69 往上/往下 */
  bottom: calc(108 / 946 * 100%);

  width: calc(140 / 2048 * 100%);
  height: auto;

  cursor: pointer;
  pointer-events: auto;
}

/* i70.png 二维码弹层 */
.core-qrcode {
  position: absolute;
  z-index: 12;

  /* 二维码位置：在气泡和 i69 上方，可微调 */
  left: calc(1438 / 2048 * 100%);
  top: calc(530 / 946 * 100%);

  width: calc(180 / 2048 * 100%);

  padding: calc(10 / 2048 * 100vw);
  background: #ffffff;
  border-radius: calc(14 / 2048 * 100vw);
  box-shadow: 0 calc(14 / 2048 * 100vw) calc(36 / 2048 * 100vw)
    rgba(0, 0, 0, 0.18);

  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.96);
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease,
    transform 0.25s ease;

  pointer-events: auto;
}

.core-qrcode img {
  width: 100%;
  height: auto;
  display: block;
}

/* 鼠标移动到气泡或 i69 时显示二维码 */
.core-consult-text:hover ~ .core-qrcode,
.core-i69:hover ~ .core-qrcode,
.core-qrcode:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* 第三部分 */
.section-third {
  width: 100%;
  background: #ffffff;
  overflow: hidden;
  padding: calc(80 / 2048 * 100vw) 0;
}

/* 第三部分顶部标题 */
/* 第三部分 */
.section-third {
  width: 100%;
  background: #ffffff;
  overflow: hidden;
  padding: calc(80 / 2048 * 100vw) 0;
}

/* 第三部分顶部标题 */
.third-title {
  width: 100%;
  text-align: center;
  white-space: nowrap;
}

.third-title h2 {
  margin: 0;
  color: #000000;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
}

.third-title p {
  margin-top: 14px;
  color: #7b7f8a;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.4;
}

.third-inner {
  width: 100%;
  margin-top: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 第三部分图片画布：保持原来图片显示大小不变 */
.third-img-wrap {
  position: relative;

  /* 这行就是你原来的图片大小，保留不变 */
  width: min(1200px, 86vw);

  /* i78.png 原图比例，固定画布比例，保证文字不漂 */
  aspect-ratio: 2048 / 1144;
}

/* 图片大小不变，只是铺满 third-img-wrap */
.third-img {
  position: absolute;
  inset: 0;
  z-index: 1;

  width: 100%;
  height: 100%;
  display: block;
  object-fit: fill;
}

/* i78 图片内文字 */
.third-label {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;

  color: #202020;

  /*
    关键：
    图片最大宽度是 1200px 时，文字是 20px；
    图片随浏览器变小时，文字也按比例变小。
  */
  font-size: min(20px, calc(20 / 1200 * 86vw));

  font-weight: 400;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

.third-gray {
  color: #7b7f8a;
}

.third-blue {
  color: #2880ff;
}

/* 左上第一个长框：游戏多号，手机切换麻烦 */
.third-left-1 {
  left: 11%;
  top: 9.8%;
}

/* 左侧第二个长框：批量同步操作，省时省力 */
.third-left-2 {
  left: 7.6%;
  top: 25.7%;
}

/* 左侧大卡片第一行：任务同步完成 */
.third-left-3 {
  left: 12%;
  top: 46%;
}

/* 左侧大卡片第二行：副本同步推进 */
.third-left-4 {
  left: 12%;
  top: 57.5%;
}

/* 左侧大卡片第三行：资源同步手机 */
.third-left-5 {
  left: 12%;
  top: 68.5%;
}

/* 左下底部按钮：效率大幅提升 */
.third-left-6 {
  left: 12%;
  top: 85%;
}

/* 右上第一个长框：离线就停止，费电又费心 */
.third-right-1 {
  left: 74%;
  top: 9.8%;
}

/* 右侧第二个长框：7x24小时全天候稳定运行 */
.third-right-2 {
  left: 77%;
  top: 25.7%;
}

/* 右侧大卡片第一行：资源稳定产出 */
.third-right-3 {
  left: 82%;
  top: 46%;
}

/* 右侧大卡片第二行：不耗电不发热 */
.third-right-4 {
  left: 82%;
  top: 57.5%;
}

/* 右侧大卡片第三行：不占本地资源 */
.third-right-5 {
  left: 82%;
  top: 68.5%;
}

/* 右下底部按钮：关机断网睡觉出门都不怕 */
.third-right-6 {
  left: 78%;
  top: 84.5%;
}

/* 场景应用 */
.section-scene {
  width: 100%;
  background: #ffffff;
  overflow: hidden;
}

/* i79 作为整张背景图画布 */
.scene-canvas {
  position: relative;
  width: 100vw;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
}

.scene-bg-img {
  width: 100%;
  height: auto;
  display: block;
}

/* 内容覆盖在 i79 上 */
.scene-content {
  position: absolute;
  inset: 0;
  z-index: 2;
}

/* 顶部标题 */
.scene-title {
  position: absolute;
  top: calc(84 / 946 * 100%);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  white-space: nowrap;
}

.scene-title h2 {
  margin: 0;
  color: #000000;
  font-size: calc(40 / 2048 * 100vw);
  font-weight: 700;
  line-height: 1.2;
}

.scene-title p {
  margin-top: calc(14 / 2048 * 100vw);
  color: #7b7f8a;
  font-size: calc(20 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.4;
}

/* 三个组件横向排列 */
.scene-card-list {
  position: absolute;
  left: 50%;
  top: calc(250 / 946 * 100%);
  transform: translateX(-50%);

  width: calc(1500 / 2048 * 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 单个组件 */
.scene-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.scene-img-box {
  display: flex;
  align-items: center;
  justify-content: center;
}

.scene-img-box img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* 左右组件图片较小 */
.scene-card-small {
  width: calc(390 / 2048 * 100vw);
}

.scene-card-small .scene-img-box {
  width: calc(330 / 2048 * 100vw);
}

/* 中间组件图片较大 */
.scene-card-large {
  width: calc(520 / 2048 * 100vw);
}

.scene-card-large .scene-img-box {
  width: calc(470 / 2048 * 100vw);
}

/* 文字区 */
.scene-text {
  margin-top: calc(34 / 2048 * 100vw);
}

.scene-text h3 {
  margin: 0;
  color: #000000;
  font-size: calc(28 / 2048 * 100vw);
  font-weight: 800;
  line-height: 1.2;
}

.scene-text p {
  margin-top: calc(14 / 2048 * 100vw);
  color: #7b7f8a;
  font-size: calc(20 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.4;
  white-space: nowrap;
}

/* 联系我们 */
.contact-section {
  background: #ffffff;
  padding: 60px 40px;
  width: 100%;
  max-width: none;
  margin: 0;
}

.contact-title {
  font-size: 32px;
  font-weight: 700;
  color: #000000;
  text-align: center;
}

.contact-row {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 30px;
  margin-top: 50px;
}

.contact-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
}

.divider {
  width: 1px;
  background: #d9d9d9;
  flex-shrink: 0;
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
}

.qr-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-label {
  font-size: 16px;
  font-weight: 500;
  color: #202020;
  margin-top: 16px;
  text-align: center;
}

/* 底部 Footer */
.footer {
  width: 100%;
  background: #3b3a3f;
  padding: 30px 7%;
}

.footer-inner {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
}

.footer-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  height: 32px;
  width: auto;
  display: block;
}

.footer-spacer {
  flex: 1;
}

.social-icon {
  width: 42px;
  height: 42px;
  cursor: pointer;
  transition: transform 0.15s ease;
  object-fit: contain;
  display: block;
}

.social-icon:hover {
  transform: scale(1.08);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 8px;
  margin-top: 16px;
}

.footer-links a {
  color: #ffffff;
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pipe {
  color: #ffffff;
  font-size: 14px;
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 20px;
}

.friend-links a {
  color: #ffffff;
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.copyright {
  color: #7b7f8a;
  font-size: 12px;
  margin-top: 24px;
}

.beian-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 12px;
}

.beian-item {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: #999999;
  font-size: 12px;
  text-decoration: none;
}

.beian-item:hover {
  color: #ffffff;
}

.beian-item img {
  width: 16px;
  height: 16px;
  display: block;
}

/* Footer 微信二维码弹窗 */
.footer-wx-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
}

.footer-wx-modal.show {
  display: flex;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
}

.social-link .social-icon {
  display: block;
}

.footer-wx-box {
  position: relative;
  width: 220px;
  padding: 22px 20px 20px;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
  text-align: center;
}

.footer-wx-close {
  position: absolute;
  top: 8px;
  right: 10px;
  border: none;
  outline: none;
  background: transparent;
  color: #666666;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.footer-wx-title {
  color: #202020;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-wx-qr {
  width: 160px;
  height: 160px;
  display: block;
  margin: 0 auto;
  object-fit: cover;
  border-radius: 10px;
}

/* 关于我们页面 */
.about-page {
  width: 100%;
  min-height: 100vh;
  background: #ffffff;
  padding-top: var(--header-height);
}

.about-hero {
  width: 100%;
  background: linear-gradient(180deg, #eef6ff 0%, #ffffff 100%);
  padding: 110px 0 80px;
}

.about-inner {
  width: min(1200px, calc(100% - 80px));
  margin: 0 auto;
}

.about-hero h1 {
  margin: 0;
  color: #000000;
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.about-hero p {
  width: min(820px, 100%);
  margin: 26px auto 0;
  color: #7b7f8a;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.8;
  text-align: center;
}

.about-intro {
  width: 100%;
  padding: 70px 0 110px;
  background: #ffffff;
}

.about-card {
  padding: 54px 56px;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(30, 92, 180, 0.08);
}

.about-card h2 {
  margin: 0;
  color: #000000;
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
}

.about-card > p {
  margin-top: 18px;
  color: #7b7f8a;
  font-size: 18px;
  line-height: 1.8;
}

.about-grid {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.about-item {
  padding: 28px;
  border-radius: 20px;
  background: #f6f9ff;
}

.about-item h3 {
  margin: 0;
  color: #202020;
  font-size: 22px;
  font-weight: 800;
}

.about-item p {
  margin-top: 14px;
  color: #7b7f8a;
  font-size: 16px;
  line-height: 1.7;
}

/* 关于我们页面 */
.about-page {
  width: 100%;
  background: #ffffff;
  padding-top: var(--header-height);
}

/* 第一部分：产品介绍 + 公司介绍 */
.about-product-section {
  width: 100%;
  background: #eef5ff;
  overflow: hidden;
}

/* 内容撑开高度，不再固定 aspect-ratio */
.about-product-canvas {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);

  display: grid;
  grid-template-columns:
    calc(180 / 2048 * 100vw)
    calc(1050 / 2048 * 100vw)
    1fr
    calc(560 / 2048 * 100vw)
    calc(170 / 2048 * 100vw);

  grid-template-areas:
    ". productHead productHead productHead ."
    ". productCopy . productImg ."
    ". companyHead companyHead companyHead ."
    ". companyCopy companyCopy companyCopy .";

  column-gap: 0;
  row-gap: calc(42 / 2048 * 100vw);

  padding-top: calc(100 / 2048 * 100vw);
  padding-bottom: calc(90 / 2048 * 100vw);
}

/* 产品介绍标题 */
.about-product-head {
  grid-area: productHead;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.about-product-head h1 {
  margin: 0;
  font-size: calc(36 / 2048 * 100vw);
  font-weight: 800;
  line-height: 1.2;
  white-space: nowrap;

  background: linear-gradient(90deg, #00ccff 0%, #0a53ff 55%, #cf5fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.about-product-en {
  color: rgba(32, 32, 32, 0.2);
  font-size: calc(32 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.2;
  white-space: nowrap;
  text-transform: lowercase;
}

/* 产品介绍正文 */
.about-product-copy {
  grid-area: productCopy;
  color: #7b7f8a;
  font-size: calc(16 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.72;
}

.about-product-copy p {
  margin: 0;
}

.about-product-copy p + p {
  margin-top: calc(16 / 2048 * 100vw);
}

.about-core-title {
  margin-top: calc(16 / 2048 * 100vw) !important;
}

/* 产品介绍右侧图片 */
.about-product-img-box {
  grid-area: productImg;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.about-product-img-box img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

/* 公司介绍标题 */
.about-company-head {
  grid-area: companyHead;
  margin-top: calc(20 / 2048 * 100vw);

  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.about-company-head h2 {
  margin: 0;
  font-size: calc(36 / 2048 * 100vw);
  font-weight: 800;
  line-height: 1.2;
  white-space: nowrap;

  background: linear-gradient(90deg, #00ccff 0%, #0a53ff 55%, #cf5fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.about-company-en {
  color: rgba(32, 32, 32, 0.2);
  font-size: calc(32 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.2;
  white-space: nowrap;
  text-transform: lowercase;
}

/* 公司介绍正文 */
.about-company-copy {
  grid-area: companyCopy;
  color: #7b7f8a;
  font-size: calc(16 / 2048 * 100vw);
  font-weight: 400;
  line-height: 1.85;
}

.about-company-copy p {
  margin: 0;
  text-indent: 2em;
}

.about-company-copy p + p {
  margin-top: calc(26 / 2048 * 100vw);
}