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

/* === 全局基础设置 (采用 ihead 基准) === */
html {
  font-size: 16px;
  /* 统一为 16px */
}

body {
  font-family: "Noto Sans SC", "微软雅黑", sans-serif;
  /* 优先使用 Noto Sans SC */
  line-height: 1.5;
  color: #333;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: #f8f9fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* === 导航栏 (采用 ihead 基准) === */
.navbar {
  background: #667eea;
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.2rem;
  font-weight: bold;
  color: white;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-size: 0.9rem;
  padding: 5px 10px;
  border-radius: 5px;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, 0.2);
}

/* === 面包屑导航 (保留 rhead 特有) === */
.breadcrumb {
  background: #f5f5f5;
  padding: 12px 0;
  font-size: 0.85rem;
}

.breadcrumb a {
  color: #667eea;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* === 位置分类页头 (保留 rhead 特有) === */
.locations-header {
  background: #667eea;
  color: white;
  padding: 30px 0;
  margin-bottom: 30px;
  text-align: center;
}

.locations-header h1 {
  font-size: 2rem;
  margin-bottom: 12px;
  padding: 0 15px;
}

.locations-header p {
  font-size: 1rem;
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.95;
  padding: 0 15px;
}

/* === 响应式表格容器 === */
.table-responsive {
  width: 100%;
  overflow-x: visible; /* 依然不需要左右滑动 */
}

/* === 表格样式 === */
.locations-table {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  margin-bottom: 40px;
}

.table-header {
  background: #f0f4ff;
  padding: 20px;
  border-bottom: 1px solid #e9ecef;
}

.table-header h2 {
  font-size: 1.4rem;
  color: #667eea;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.table-header h2 i {
  color: #667eea;
}

/* ✨ 核心优化 1：改为 auto 模式，让浏览器根据内容多少自动分配列宽 */
table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto; /* 开启根据内容多寡自适应宽度 */
}

thead {
  background: #f8f9fa;
}

th {
  padding: 16px 8px;
  text-align: center;
  font-weight: 600;
  color: #333;
  border-bottom: 2px solid #e9ecef;
  font-size: 0.9rem;
  white-space: normal;
  word-break: break-all;
}

/* ✨ 核心优化 2：通过约束最小和最大条件，确保自动适应时不挤压不顶变形 */
td {
  padding: 14px 6px;
  border-bottom: 1px solid #e9ecef;
  vertical-align: middle;

  /* 允许内容多的地方换行 */
  word-wrap: break-word;
  word-break: break-all;
  white-space: normal;

  /* 给短内容列一个最小安全宽度，防止中文字符被挤成单字垂直排列 */
  min-width: 45px;
}

/* 💡 既然改为了内容自适应，我们需要【删除】原先写死的那些 width: 14% 等百分比代码。
         这里只需要给“备注”和“英文/罗马音”指定一个基础的倾向，其余让它全自动分配即可 */
table th:nth-child(5) {
  width: 35%; /* 给备注一个较大的基础空间，内容越多它会自动撑得越大 */
}

tbody tr:hover {
  background: #f8f9fa;
}

.location-category {
  font-weight: 600;
  color: #667eea;
  background: #f0f4ff;
}

.location-category td {
  padding-top: 20px;
  padding-bottom: 20px;
}

.chinese-name {
  text-align: center;
  font-weight: 500;
  color: #333;
}

.english-name {
  text-align: center;
  color: #666;
  font-size: 0.95rem;
}

.japanese-name {
  text-align: center;
  font-family: "Meiryo", "Hiragino Sans GB", sans-serif;
  color: #333;
}

.romaji {
  text-align: center;
  color: #888;
  font-size: 0.9rem;
  font-style: italic;
}

.notes {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.5;
  text-align: left;
}

.location-type {
  display: block;
  text-align: center;
  padding: 3px 4px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  margin: 5px auto 0;
  width: max-content; /* 宽度根据类型字数自动紧凑包裹 */
  max-width: 75px;
}

.type-primary {
  background: #e8f5e9;
  color: #2e7d32;
}

.type-decorative {
  background: #fff3e0;
  color: #ef6c00;
}

.type-support {
  background: #e3f2fd;
  color: #1565c0;
}

/* === 首页特有样式 (采用 ihead 基准) === */
.hero-section {
  background:
    linear-gradient(
      135deg,
      rgba(102, 126, 234, 0.9) 0%,
      rgba(118, 75, 162, 0.9) 100%
    ),
    url("assets/images/hero-bg.jpg") center/cover no-repeat;
  color: white;
  padding: 40px 0;
  text-align: center;
  margin-bottom: 30px;
}

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 15px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: 1rem;
  max-width: 800px;
  margin: 0 auto 20px;
  line-height: 1.5;
  opacity: 0.95;
}

.search-box {
  max-width: 500px;
  margin: 20px auto;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 12px 15px;
  padding-left: 45px;
  border: none;
  border-radius: 25px;
  font-size: 0.95rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.search-box i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #667eea;
  font-size: 1rem;
}

.category-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin: 30px 0;
}

.category-card {
  background: white;
  border-radius: 12px;
  padding: 20px 15px;
  text-align: center;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
  border: 2px solid transparent;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
  border-color: #667eea;
}

.category-icon {
  font-size: 2rem;
  margin-bottom: 10px;
  display: block;
}

.category-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #333;
}

.category-card p {
  color: #666;
  font-size: 0.85rem;
  line-height: 1.4;
}

.statistics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 12px;
  padding: 20px;
  margin: 30px 0;
}

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

.stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: #667eea;
  display: block;
}

.stat-label {
  color: #666;
  font-size: 0.85rem;
  margin-top: 5px;
}

/* 术语列表 */
.term-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.term-card {
  background: white;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.term-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: #333;
}

.term-card p {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 10px;
}

.tag {
  background: #4caf50;
  color: white;
  padding: 3px 8px;
  border-radius: 15px;
  font-size: 0.75rem;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin: 30px 0;
}

.quick-link {
  background: white;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}

.quick-link:hover {
  transform: translateX(3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.quick-link i {
  font-size: 1.5rem;
  color: #667eea;
}

.quick-link h4 {
  font-size: 1rem;
  margin-bottom: 3px;
  color: #333;
}

.quick-link p {
  color: #666;
  font-size: 0.8rem;
}

/* === 页脚 (采用 ihead 基准) === */
.footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 25px 0;
  margin-top: 40px;
}

.footer h4 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.footer a {
  color: #bdc3c7;
  text-decoration: none;
  font-size: 0.85rem;
  display: block;
  margin-bottom: 5px;
}

.copyright {
  margin-top: 5px;
  font-size: 0.85rem;
  color: #bdc3c7;
}

.back-button {
  display: inline-block;
  background: #667eea;
  color: white;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 25px;
  font-weight: 500;
  margin: 20px 0;
  transition: all 0.3s ease;
}

.back-button:hover {
  background: #5a6fd8;
  transform: translateX(-3px);
}

/* === 响应式调整 === */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .hero-title {
    font-size: 1.8rem;
    padding: 0 10px;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    padding: 0 10px;
  }

  .category-nav {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
  }

  .category-card {
    padding: 15px 10px;
  }

  .category-card h3 {
    font-size: 1.1rem;
  }

  .category-card p {
    font-size: 0.8rem;
  }

  .statistics {
    grid-template-columns: repeat(2, 1fr);
    padding: 15px;
    gap: 10px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .term-list {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .term-card {
    padding: 15px;
  }

  .term-card h3 {
    font-size: 1.2rem;
  }

  .term-card p {
    font-size: 0.85rem;
  }

  .quick-links {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 8px;
  }

  .nav-links a {
    font-size: 0.9rem;
    padding: 4px 8px;
  }

  .logo {
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  section h2 {
    font-size: 1.5rem !important;
    margin: 30px 0 20px !important;
  }

  /* ✨ 核心优化 3：手机/平板端清空手动指定的列宽，交给浏览器 100% 自动按内容多寡伸缩分配 */
  table th:nth-child(5) {
    width: auto;
  }

  th,
  td {
    padding: 10px 3px; /* 移动端压减内边距，释放更多横向自适应空间 */
    font-size: 0.78rem; /* 稍微压缩字体，给多国语言列留出呼吸空间 */
  }
  .notes {
    font-size: 0.78rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .hero-section {
    padding: 30px 0;
  }

  .category-nav {
    grid-template-columns: 1fr;
  }

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

  .navbar .container {
    flex-direction: column;
    gap: 10px;
  }

  .search-box input {
    padding: 10px 12px;
    padding-left: 40px;
    font-size: 0.9rem;
  }

  .container {
    padding: 0 10px;
  }

  section h2 {
    font-size: 1.4rem !important;
  }

  .category-card h3 {
    font-size: 1.1rem;
  }

  /* ✨ 核心优化 4：针对小屏幕超窄手机的极端情况优化 */
  th,
  td {
    padding: 8px 2px;
    font-size: 0.72rem;
  }
  .notes {
    font-size: 0.72rem;
  }
  .location-type {
    font-size: 0.68rem;
    padding: 1px 2px;
  }
}

@media (max-width: 360px) {
  html {
    font-size: 13px;
  }

  .hero-title {
    font-size: 1.4rem;
  }

  .category-icon {
    font-size: 1.8rem;
  }

  .stat-number {
    font-size: 1.3rem;
  }

  .nav-links a {
    font-size: 0.8rem;
    padding: 3px 6px;
  }
}