/* ========== 全局字体 ========= */
html {
    font-family: 'Open Sans', sans-serif;
  }
  /* 正文 400 */
  body {
    font-weight: 400;
  }
  
  /* 中等强调 600 */
  strong,
  h3, h4 {
    font-weight: 600;
  }
  
  /* 标题 700 或 800 */
  h1, h2 {
    font-weight: 700;
  }
  /* ========== Reset & Base ========== */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  ul {
    list-style: none;
  }
  a {
    text-decoration: none;
    color: inherit;
  }
  /* —— 基础，把 html/body 拉满高度 —— */
  html, body {
      height: 100%;
      margin: 0;
      padding: 0;
    }
    
    /* —— 外层容器 —— */
    .page-wrapper {
      display: flex;
      flex-direction: column;
      min-height: 100%;
    }
    
    /* —— 主体内容区，会自动撑满空白 —— */
    .page-content {
      flex: 1;
    }
    
    /* —— Footer 黏底 —— */
    .site-footer {
      flex-shrink: 0;      /* 不被压缩，保持自身高度 */
      background: #000;
      color: #fff;
      padding: 2rem 0;
    }
    
    /* —— Footer 内部布局 —— */
    .footer__inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      max-width: 1200px;
      margin: 0 auto;
    }
    
    /* … 其余 .footer__socials/.footer__copyright/.footer__logo 样式照旧 … */
    
  /* ========== Header & Layout ========== */
  .site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 1rem 0
  }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .page-content {
    padding-top: 0px; 
  }
    /* 留出 header 高度，避免内容被遮挡 */

  
  /* ========== Logo ========== */
  .site-logo img {
    display: block;
    height: 50px;
  }
  
  /* ========== Nav & Toggle ========== */
  /* 移动端：隐藏主导航，只显示汉堡按钮 */
  .site-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
  }
  
  /* 菜单列表 */
  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 0.5rem; /* 下拉菜单时给点间距 */
  }
  .nav-list a {
    font-size: 1rem;
    font-weight: 500;
    color: #333;
    text-transform: uppercase;
  }
  
  /* 当 .site-nav 加上 .is-open 时展开（移动端） */
  .site-nav.is-open {
    display: block;
  }
  
  /* ========== Tablet & Desktop（≥768px） ========== */
  @media (min-width: 768px) {
    /* 隐藏汉堡，显示主导航 */
    .mobile-menu-toggle {
      display: none;
    }
    .site-nav {
      display: block;
      margin-left: auto; /* 把菜单推到右边 */
    }
  
    /* 水平排列菜单 */
    .nav-list {
      flex-direction: row;
      gap: 24px;
      margin-top: 0; /* 取消下拉间距 */
    }
  }
  
  /* ========== Hero 区域 ========== */
  .hero {
    position: relative;
    width: 100%;
    height: 60vh;          /* 整个视口高度 */
    overflow: hidden;       /* 裁切超出的部分 */
  }
  
  .hero-media {
    position: absolute;
    inset: 0;               /* top:0; right:0; bottom:0; left:0; */
    width: 100%;
    height: 90%;
    object-fit: cover;
    z-index: 1;* 关键：开启动画并保持在中央缩放 */
    transform-origin: center center;
    animation: hero-zoom 20s ease-in-out infinite alternate;
  }
  
  /* 2️⃣ 定义 keyframes：从 1 倍慢慢缩放到 1.05 倍，再反过来 */
  @keyframes hero-zoom {
    from {
      transform: scale(1);
    }
    to {
      transform: scale(1.05);
    }
  }
  }
  
  .hero-media__overlay {
    position: absolute;
    /* 改用 bottom 保持距底部一定距离 */
    bottom: 6%;            /* 距视频底部 10% */
    left: 50%;
    transform: translateX(-50%);
    width: 100%;             /* 根据设计稿限制 overlay 宽度 */
    max-width: 1200px;
    color: #fff;
    z-index: 2;
  }
  
  /* 文本排版 */
  .hero-media__overlay p {
    font-size: 1rem;        /* 副标题 */
    margin-bottom: 0.5rem;
  }
  
  .hero-media__overlay h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);  
    /* clamp(min, 弹性值, max)：视口越小，字体不会小于 1.5rem，越大不会超 2.5rem */
    line-height: 1.2;
  }
  
  /* ====== 响应式 ===== */
  @media (max-width: 768px) {
    .hero-media__overlay {
      bottom: 10%;          /* 小屏时再往上挪一点 */
      width: auto;
      left: auto;
      padding: 0 1rem;
    }
    .hero-media__overlay p {
      font-size: 0.9rem;
    }
    .hero-media__overlay h2 {
      font-size: clamp(1.25rem, 6vw, 2rem);
    }
  }

/* ====== Stats 区块基础样式 ====== */
.stats {
    margin: 4rem auto;             /* 与上下内容留白 */
    padding: 0 1rem;               /* 两侧内边距防止贴边 */
    max-width: 1200px;
    margin-top: 2rem; /* 取消下拉间距 */
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);  /* 三列等宽 */
    gap: 2rem;                              /* 列间距 */
  }
  .stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;                            /* 图标、数字、标签之间垂直间距 */
  }
  .stat-card__icon {
    width: 48px;
    height: auto;
    margin-top: 0
  rem; /* ← 这里自己调节距离 */
    margin-bottom: 1rem;
  }
  .stat-card__value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
    line-height: 1;
  }
  .stat-card__label {
    font-size: 1rem;
    margin: 0;
    color: #666;
  }
  
  /* —— 圆形背景，默认透明 —— */
.stat-card::before {
  content: "";
  position: absolute;
  top: 0;                        /* 与 padding-top 对齐 */
  left: 50%;
  transform: translateX(-50%);
  width: 72px;                   /* 背景比图标略大 */
  height: 72px;
  border-radius: 50%;
  background-color: transparent;
  transition: background-color .3s ease;
  z-index: 0;                    /* 背景层 */
}

/* —— Hover 整体微微提升 —— */
.stat-card:hover {
  transform: translateY(-6px);
}

/* —— Hover 时圆背景变橙，并把图标变白 —— */
.stat-card:hover::before {
  background-color: #C01C20;     /* 你的品牌橙色 */
}
.stat-card:hover .stat-card__icon {
  filter: brightness(0) invert(1);
}
  
  /* ====== 响应式：窄屏时一列 ====== */
  @media (max-width: 768px) {
    .stats-grid {
      grid-template-columns: 1fr;  /* 变成单列 */
      gap: 1.5rem;                 /* 缩小间距 */
    }
    .stat-card__value {
      font-size: 2rem;             /* 适当减小数字字号 */
    }
  }
  
  /* —— Assistance 区块 —— */
.assistance {
  background: #f4f4f4;      /* 或者你自己的背景色 */
  padding: 6rem 0;
}

.assistance__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

/* — 左侧文字 — */
.assistance__text {
  position: right;
}
.assistance__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
  color: #111;
}

/* 橘色装饰条 */
.assistance__decor {
  width: 50px;
  height: 4px;
  background-color: #C01C20;
  margin-bottom: 2rem;
}

/* 两栏文本 */
.assistance__columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.assistance__col p {
  margin-bottom: 1.5rem;
  line-height: 1.6;
  color: #333;
}

/* —— 右侧图片 — */
.assistance__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* —— 响应式 —— */
@media (max-width: 992px) {
  .assistance__inner {
    grid-template-columns: 1fr;
  }
  .assistance__columns {
    grid-template-columns: 1fr;
  }
  .assistance__decor {
    margin-bottom: 1.5rem;
  }
  .assistance__title {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    margin-bottom: 1.5rem;
  }
}

/* ====== Service Highlights 区块 ====== */
.service-highlights {
  padding: 4rem 0;
  background: #f5f5f5;
}
.service-highlights__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

/* 单个条目基底 */
.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 2rem;
}

/* 左右颠倒 */
.service-item--reverse {
  direction: rtl;
}
.service-item--reverse .service-item__media,
.service-item--reverse .service-item__content {
  direction: ltr;
}

/* 图片区域 */
.service-item__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

/* 文本区域 */
.service-item__content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.service-item__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}
.service-item__text {
  font-size: 1rem;
  line-height: 1.6;
  color: #333;
  margin: 0;
}
.service-item__btn {
  align-self: start;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background-color: #C01C20;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s ease;
}
.service-item__btn:hover {
  background-color: #9a1618;
}

/* 响应式：窄屏时上下堆叠 */
@media (max-width: 768px) {
  .service-item {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .service-item--reverse {
    direction: ltr;
  }
  .service-item__btn {
    align-self: center;
  }
}

/* ========== Newsletter ========== */
.newsletter {
  padding: 4rem 0;
}
.newsletter__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  gap: 2rem;
}
.newsletter__input {
  flex: 1 1 300px;
  padding: 0.75rem 1rem;
  border-radius: 9999px;
  border: 1px solid #DDD;
}
.newsletter__btn {
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  border: none;
  background-color: #C01C20;
  color: #FFF;
}

/* ========== Footer ========== */
.site-footer {
  background: #000;
  color: #FFF;
  padding: 2rem 0;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  gap: 1rem;
}
.footer__socials a {
  margin-right: 0.5rem;
}
.footer__socials img {
  width: 24px;
  height: auto;
}

/* ===== Newsletter Signup ===== */
.newsletter {
  background: #fff;
  padding: 4rem 0;
}

.newsletter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.newsletter__text {
  flex: 1 1 300px;
}

.newsletter__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.newsletter__subtitle {
  font-size: 1rem;
  color: #666;
}

.newsletter__form {
  flex: 1 1 300px;
  display: flex;
  gap: 0.5rem;
}

.newsletter__input {
  flex: 1;
  padding: 0.75rem 1rem;
  height: au;
  border: 1px solid #ddd;
  border-radius: 9999px 0 0 9999px;
  font-size: 1rem;
}

.newsletter__btn {
  padding: 0 1.5rem;
  width: 30%;
  background-color: #C01C20;
  color: #fff;
  border: none;
  border-radius: 0 9999px 9999px 0;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.newsletter__btn:hover {
  background-color: #621c1c;
}

/* Mobile: form 堆叠 */
@media (max-width: 600px) {
  .newsletter__inner {
    flex-direction: column;
    align-items: stretch;
  }
  .newsletter__form {
    flex-direction: column;
  }
  .newsletter__input,
  .newsletter__btn {
    border-radius: 9999px;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: #000;
  color: #fff;
  padding: 2rem 0;
  height: 300px
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer__socials a img {
  width: 24px;
  height: auto;
  margin-right: 0.5rem;
}

.footer__socials {
  flex: 1 1 200px;
}

.footer__copyright {
  flex: 1 1 200px;
  text-align: center;
  font-size: 0.9rem;
}

.footer__logo img {
  height: 40px;
  width: auto;
}

.footer__logo {
  flex: 1 1 200px;
  text-align: right;
}

/* Mobile: 堆叠居中 */
@media (max-width: 600px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
  .footer__socials,
  .footer__copyright,
  .footer__logo {
    flex: none;
    margin-bottom: 1rem;
  }
  .footer__socials a img {
    margin-right: 1rem;
  }
}

/* 1) 让 html、body 占满整个视口高度 */
html, body {
  height: 100%;
  margin: 0;          /* 清除默认 margin */
  padding: 0;
}

/* 2) body 作为 flex 容器，纵向排列 */
body {
  display: flex;
  flex-direction: column;
}

/* 3) 主内容区自动拉伸 */
.page-content {
  flex: 1;            /* 占据 header/footer 以外的所有剩余空间 */
}

/* 4) footer 固定在底部，不拉伸 */
.site-footer {
  flex-shrink: 0;
}