/* 君未见官网｜统一样式（新增图片样式） */
:root {
  --text-main: #111111;
  --text-sub: #555555;
  --border-light: #e6e6e6;
  --bg-main: #ffffff;
  --bg-light: #f7f7f7;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text-main);
  background: var(--bg-main);
  line-height: 1.7;
}
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
/* Header（新增logo样式） */
.site-header {
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  background: var(--bg-main);
  z-index: 999;
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px; /* 调整内边距适配logo */
}
.brand {
  display: flex;
  align-items: center;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-main);
}
.logo-img {
  height: 60px; /* logo高度 */
  margin-right: 12px;
}
.brand-text {
  font-size: 20px;
}
.nav a {
  margin-left: 24px;
  font-size: 15px;
  color: var(--text-sub);
  position: relative;
  text-decoration: none;
}
.nav a.active,
.nav a:hover {
  color: var(--text-main);
}
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--text-main);
}
/* 英雄区（新增背景图样式） */
.hero {
  padding: 120px 0;
  background: url(images/hero-bg.jpg) no-repeat center center; /* 背景图 */
  background-size: cover; /* 自适应覆盖 */
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.85); /* 半透明遮罩，保证文字可读性 */
}
.hero-content {
  position: relative; /* 文字层级高于背景遮罩 */
  z-index: 1;
}
/* Sections */
section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border-light);
}
section:last-of-type {
  border-bottom: none;
}
h1 {
  font-size: 42px;
  line-height: 1.3;
  margin-bottom: 24px;
}
h2 {
  font-size: 28px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 2px;
  background: var(--text-main);
}
h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text-main);
}
p {
  color: var(--text-sub);
  margin-bottom: 16px;
  max-width: 760px;
}
/* Buttons */
.btn {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 36px;
  border: 1px solid var(--text-main);
  color: var(--text-main);
  font-size: 15px;
  transition: all 0.2s ease;
  text-decoration: none;
  border-radius: 2px;
}
.btn:hover {
  background: var(--text-main);
  color: #ffffff;
}
/* Footer（新增footer logo样式） */
footer {
  background: var(--bg-light);
  padding: 48px 0;
  font-size: 14px;
  color: #666666;
}
.footer-logo {
  height: 50px;
  margin-right: 12px;
}
/* Lists */
ul {
  padding-left: 20px;
  margin-bottom: 24px;
  color: var(--text-sub);
}
ul li {
  margin-bottom: 12px;
  line-height: 1.8;
}
/* 核心业务样式（新增） */
.services-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.service-item {
  padding: 24px;
  background: var(--bg-light);
  border-radius: 8px;
  text-align: center;
}
.service-icon {
  height: 80px;
  margin-bottom: 16px;
}
/* 案例样式（新增） */
.case-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.case-item {
  padding: 24px;
  background: var(--bg-light);
  border-radius: 8px;
}
.case-img {
  width: 100%;
  height: 200px;
  object-fit: cover; /* 图片自适应裁剪，不变形 */
  border-radius: 4px;
  margin-bottom: 16px;
}
.case-detail-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 4px;
  margin: 24px 0;
}
/* 团队样式（新增） */
.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.team-member {
  padding: 24px;
  background: var(--bg-light);
  border-radius: 8px;
  text-align: center;
}
.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%; /* 圆形头像 */
  object-fit: cover;
  margin-bottom: 16px;
}
/* 联系我们样式（新增） */
.contact-section {
  background: url(images/contact-bg.png) no-repeat center center;
  background-size: cover;
  position: relative;
}
.contact-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.9);
}
.contact-wrap {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  position: relative;
  z-index: 1;
}
.map-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
}
/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 32px;
  }
  h2 {
    font-size: 24px;
  }
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav {
    margin-top: 16px;
  }
  .nav a {
    margin-left: 0;
    margin-right: 16px;
  }
  section {
    padding: 64px 0;
  }
  .hero {
    padding: 80px 0;
  }
  .services-preview, .advantages, .philosophy, .team, .contact-wrap {
    grid-template-columns: 1fr;
  }
  .case-img, .case-detail-img, .map-img {
    height: 180px; /* 移动端图片高度适配 */
  }
  .logo-img {
    height: 50px; /* 移动端logo缩小 */
  }
}
body {
  -webkit-user-select: none; /* 禁止选中文字 */
  user-select: none;
}