/* ========== 基础重置 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Microsoft YaHei", "苹方", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f9f9f9;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* ========== 导航栏（主色 #7B3125） ========== */
header {
  background: #812D20;
  color: white;
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

/* 导航栏加高、变宽 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.3rem 5%;
  /* 增大上下内边距，导航栏更高 */
  width: 100%;
  box-sizing: border-box;
}

/* ====== 纯文字 Logo 样式 ====== */
.logo {
  display: flex;
  flex-direction: column;
  /* 中文 + 英文 垂直排列 */
  align-items: flex-start;
  gap: 3px;
  /* 两行文字间距 */
  transform: translateY(-4px);
  /* 整体上移一点 */
}

.logo-img {
  height: 40px;
  /* 根据原文字高度设定，可按需调整 */
  width: auto;
  display: block;
}

/* 中文 Logo */
.logo-text {
  font-size: 22px;
  font-weight: bold;
  color: #fff;
  letter-spacing: 1px;
  line-height: 1.1;
}

/* 英文 Logo（大写） */
.logo-en {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  /* 强制大写 */
  letter-spacing: 1.5px;
  font-weight: 500;
  line-height: 1;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
  transition: 0.3s;
}

.nav-links a.active,
.nav-links a:hover {
  border-bottom-color: #FFD966;
  color: #FFD966;
}

.menu-icon {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .navbar {
    padding: 1.2rem 5%;
  }

  .logo-text {
    font-size: 19px;
  }

  .logo-en {
    font-size: 10px;
  }
}


.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
  transition: 0.3s;
}

.nav-links a.active,
.nav-links a:hover {
  border-bottom-color: #FFD966;
  color: #FFD966;
}

.menu-icon {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
}

/* ========== 所有板块全屏通栏 ========== */
.page-section {
  display: none;
  width: 100%;
  padding: 2rem 5%;
  animation: fadeIn 0.4s ease;
}

.page-section.active {
  display: block;
  
}

#home,
#about,
#teachers,
#contact {
  background: #FDF8F5;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h2 {
  font-size: 2.2rem;
  color: #7B3125;
  margin-bottom: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid #C0856A;
  display: inline-block;
}

/* ========== 首页 Hero 全屏占满 ========== */


/* 首页大图：和下面4个卡片等宽、居中、上下留间距 */
.hero-img {
  width: 100%;
 
  height: auto;
  display: block;
  margin: 0 auto 2.5rem;
  border-radius: 12px;
  object-fit: cover;
}



/* ========== 首页特色卡片 ========== */
.features {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  width: 100%;
}

.feature-card {
  padding: 1.5rem 1.5rem;
  background: white;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
  border-top: 4px solid #7B3125;
  border-bottom: 4px solid #7B3125;
  transition: transform 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-card h3 {
  color: #7B3125;
  margin-bottom: 0.6rem;
}
.feature-card h4 {
  color: #7B3125;
  margin-bottom: 0.6rem;
}

/* ========== 学校简介 ========== */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-text {
  max-width: 100%;
  font-size: 1.1rem;
  line-height: 1.8;
}

.about-text p {
  margin-bottom: 1.2rem;
}

/* 图片画廊优化 */
.about-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gallery-item {
  text-align: center;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
  margin-bottom: 0.5rem;
}

.gallery-item span {
  font-size: 0.9rem;
  color: #7B3125;
  font-weight: bold;
}

/* ========== 教师介绍 - 左右布局 ========== */
.teacher-group {
  margin-bottom: 3rem;
}

.group-title {
  font-size: 1.8rem;
  color: #7B3125;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 5px solid #7B3125;
}

/* 横向卡片容器 */
.teacher-cards-horizontal {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  /* 老师卡片之间距离加大 */
}

.teacher-card-horizontal {
  display: flex;
  background: white;
  padding: 2rem;
  /* 卡片内边距加大，更宽松 */
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  align-items: center;
  gap: 2.5rem;
  /* 照片和文字之间距离更舒服 */
  transition: transform 0.2s;
}

.teacher-card-horizontal:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(123, 49, 37, 0.15);
}

/* ========== 教师介绍 - 左右布局 ========== */
.teacher-group {
  margin-bottom: 3rem;
}

.group-title {
  font-size: 1.8rem;
  color: #7B3125;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 5px solid #7B3125;
}

/* 横向卡片容器 */
.teacher-cards-horizontal {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.teacher-card-horizontal {
  display: flex;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  align-items: center;
  gap: 2.5rem;
  transition: transform 0.2s;
}

.teacher-card-horizontal:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(123, 49, 37, 0.15);
}

/* ========== 教师介绍 - 左右布局 ========== */
.teacher-group {
  margin-bottom: 3rem;
}

.group-title {
  font-size: 1.8rem;
  color: #7B3125;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  border-left: 5px solid #7B3125;
}

/* 横向卡片容器 */
.teacher-cards-horizontal {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.teacher-card-horizontal {
  display: flex;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  align-items: center;
  gap: 2.5rem;
  transition: transform 0.2s;
}

.teacher-card-horizontal:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(123, 49, 37, 0.15);
}

/* ========== 左边图片容器：固定大小，不会被撑大 ========== */
.teacher-img-area {
  width: 160px;
  /* 固定左边区域宽度 */
  height: 200px;
  /* 固定左边区域高度 */
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========== 图片：等比缩小 + 完整显示 + 不变形 ========== */
.teacher-img-area img {
  max-width: 100%;
  /* 不超出容器宽度 */
  max-height: 100%;
  /* 不超出容器高度 */
  object-fit: contain;
  /* 等比缩小，完整显示图片 */
  border-radius: 0;
  /* 直角长方形 */
  border: none;
  /* 无边框 */
}

/* 右文 */
.teacher-info-area {
  flex: 1;
}

.teacher-info-area h4 {
  font-size: 1.3rem;
  color: #7B3125;
  margin-bottom: 0.5rem;
}

.role-badge {
  background: #7B3125;
  color: white;
  font-size: 0.8rem;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  margin-left: 0.8rem;
  font-weight: normal;
}

.teacher-info-area p {
  color: #444;
  line-height: 1.8;
  font-size: 0.95rem;
}

.teacher-note {
  margin-top: 2rem;
  color: #666;
  text-align: center;
}
/* ========== 联系我们 ========== */
#contact {
  background: #FDF8F5 !important;
}

.contact-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.contact-info,
.contact-form {
  flex: 1 1 400px;
  background: white;
  padding: 1.5rem 2rem;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
  margin-bottom: 40px;
}

.contact-info h3,
.contact-form h3 {
  color: #7B3125;
  margin-bottom: 1rem;
}

.contact-info p {
  margin-bottom: 0.8rem;
}

.contact-form form {
  display: flex;
  flex-direction: column;
}

.contact-form label {
  margin: 0.5rem 0 0.2rem;
  font-weight: 600;
}

.contact-form input {
  padding: 0.7rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.contact-form button {
  background: #7B3125;
  color: white;
  border: none;
  padding: 0.8rem;
  font-size: 1.1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
  margin-top: 0.5rem;
}

.contact-form button:hover {
  background: #5A2016;
}

.form-msg {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: green;
}

/* ========== 页脚 ========== */
footer {
  text-align: center;
  padding: 1.5rem;
  background: #7B3125;
  color: white;
  margin-top: -15px;
}

footer a {
  color: white;
  /* 链接颜色和正文文字保持统一 */
  text-decoration: none;
  /* 彻底去掉下划线 */
  margin-left: 8px;
  /* 和前面的 | 符号拉开一点间距 */
}

footer a:hover {
  color: #f0f0f0;
}

/* 单独控制关键词文字：缩小字号、微调边距 */
.footer-key {
  font-size: 11px;
  /* 字体缩小，原默认字号偏大，按需改成12~14px */
  margin: 8px 0 0;
  /* 和上方备案文字拉开间距 */
  padding: 8px 10px;
}

/* 关键词链接单独配色：想要偏深色同底，可选浅米白不刺眼 */
.footer-key a {
  color: rgb(169, 113, 105);
  /* 贴近#7B3125棕底的浅肉白，比纯白柔和，和底部配色融合 */
}

.footer-key a:hover {
  color: rgb(161, 120, 113);
}

/* ========== 移动端适配 ========== */
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #7B3125;
    flex-direction: column;
    align-items: center;
    gap: 0;
    display: none;
  }

  .nav-links.show {
    display: flex;
  }

  .nav-links a {
    padding: 1rem;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .menu-icon {
    display: block;
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 教师卡片在手机端改为上下布局 */
  .teacher-card-horizontal {
    flex-direction: column;
    text-align: center;
  }

  .teacher-img-area {
    flex: 0 0 auto;
  }

  .role-badge {
    display: inline-block;
    margin-top: 0.3rem;
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  .features {
    grid-template-columns: 1fr;
  }

  .about-gallery {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 4rem 5% 3rem;
  }

  .hero h2 {
    font-size: 1.8rem;
  }
}