/* 安装步骤页，头部/底部样式复用 about.css */
body {
  background: #f5f6f5;
}

.install-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 0 60px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #111827;
}

/* 顶部介绍区：与 header 同色衔接，向下加深以保证白字可读 */
.install-hero {
  padding-top: 150px;
  /* 150px 处与 header 底色 #79E05D 衔接，标题以下迅速加深，正文落在 #2A7F17 上（白字对比度约 5:1） */
  background: linear-gradient(180deg, #79E05D 150px, #74c55f 200px, #54b53e 260px);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #fff;
}

.install-hero .hero {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 0 56px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.install-hero .hero h1 {
  font-size: 40px;
  font-weight: 700;
  margin: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.install-hero .hero p {
  font-size: 18px;
  line-height: 1.8;
  margin: 18px 0 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.install-hero .hero-btn {
  display: flex;
  align-items: center;
  width: 330px;
  height: 80px;
  margin: 50px auto 0;
  padding: 0 36px;
  box-sizing: border-box;
  border-radius: 40px;
  background: #fff;
  color: #111827;
  font-size: 16px;
  line-height: 1.2;
  text-shadow: none;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.install-hero .hero-btn svg {
  flex: none;
  width: 30px;
  height: 30px;
  margin-right: 28px;
  fill: currentColor;
}

.install-hero .hero-btn small {
  display: block;
  font-size: 14px;
  color: #6b7280;
}

.install-hero .hero-btn strong {
  display: block;
  margin-top: 4px;
  color: #676767;
  font-size: 24px;
  font-weight: 700;
  white-space: nowrap;
}

.install-inner .page-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 4px 22px;
}

.install-inner .step {
  background: #fff;
  border-radius: 24px;
  padding: 34px 34px 34px;
  margin-bottom: 30px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.install-inner .step-head {
  display: flex;
  align-items: flex-start;
}

.install-inner .step-num {
  flex: none;
  width: 46px;
  height: 46px;
  line-height: 46px;
  margin: 10px 22px 0 0;
  border-radius: 50%;
  background: #54C835;
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  text-align: center;
}

.install-inner .step-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
}

.install-inner .step-desc {
  font-size: 18px;
  color: #374151;
  margin-top: 6px;
}

.install-inner .step-tip {
  font-size: 16px;
  color: #9ca3af;
  margin-top: 10px;
}

.install-inner .step-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 76px;
  margin-top: 32px;
  border: 1px solid #d6dae1;
  border-radius: 18px;
  background: #f8f9fb;
  color: #111827;
  font-size: 19px;
  font-weight: 700;
}

.install-inner .step-btn svg {
  width: 22px;
  height: 22px;
  margin-right: 12px;
  fill: currentColor;
}

.install-inner .step-btn .icon-round {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-right: 14px;
  border-radius: 50%;
  background: #000;
}

.install-inner .step-btn .icon-round svg {
  width: 15px;
  height: 15px;
  margin: 0 0 2px;
  fill: #fff;
}

.install-inner .step-btn .btn-text {
  line-height: 1.2;
}

.install-inner .step-btn .btn-text small {
  display: block;
  font-size: 13px;
  color: #6b7280;
}

.install-inner .step-btn.accept {
  height: 68px;
  border: none;
  background: #54C835;
  color: #fff;
  box-shadow: 0 6px 14px rgba(84, 200, 53, 0.3);
}

@media screen and (max-width: 768px) {
  .install-inner {
    padding: 24px 16px 30px;
  }

  .install-hero {
    padding-top: 1rem;
    /* background: linear-gradient(180deg, #79E05D 1rem, #3A9D22 calc(1rem + 28px), #2A7F17 calc(1rem + 80px)); */
  }

  .install-hero .hero {
    padding: 28px 18px 36px;
  }

  .install-hero .hero h1 {
    font-size: 30px;
  }

  .install-hero .hero p {
    font-size: 15px;
    margin-top: 12px;
  }

  .install-hero .hero-btn {
    width: 100%;
    max-width: 300px;
    height: 68px;
    margin-top: 30px;
    padding: 0 28px;
  }

  .install-hero .hero-btn svg {
    width: 26px;
    height: 26px;
    margin-right: 20px;
  }

  .install-hero .hero-btn strong {
    font-size: 20px;
  }

  .install-inner .page-title {
    font-size: 18px;
    margin-bottom: 14px;
  }

  .install-inner .step {
    border-radius: 18px;
    padding: 22px 18px;
    margin-bottom: 18px;
  }

  .install-inner .step-num {
    width: 32px;
    height: 32px;
    line-height: 32px;
    font-size: 16px;
    margin: 4px 12px 0 0;
  }

  .install-inner .step-title {
    font-size: 17px;
  }

  .install-inner .step-desc {
    font-size: 15px;
  }

  .install-inner .step-tip {
    font-size: 13px;
  }

  .install-inner .step-btn {
    height: 56px;
    margin-top: 20px;
    border-radius: 14px;
    font-size: 16px;
  }

  .install-inner .step-btn.accept {
    height: 52px;
  }
}