/* 全局重置与基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

html {
  font-size: 16px;
}

body {
  padding: 12px;
  background-color: #f5f7fa;
  min-height: 100vh;
  -webkit-text-size-adjust: 100%;
}

.container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 8px;
}

/* 头部区域 */
.header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 12px;
}

.header h1 {
  font-size: 1.8rem;
  color: #1d2129;
  font-weight: 600;
}

.logout-btn {
  text-decoration: none;
  color: #1677ff;
  font-size: 1rem;
  padding: 8px 12px;
  border-radius: 6px;
  transition: background-color 0.2s;
}

.logout-btn:hover {
  background-color: rgba(22, 119, 255, 0.1);
}

/* 卡片容器 */
.card {
  background-color: #ffffff;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  margin-bottom: 16px;
}

.card h2 {
  margin-bottom: 20px;
  color: #1d2129;
  font-size: 1.4rem;
  font-weight: 600;
}

/* 功能菜单网格 */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.menu-item {
  background-color: #ffffff;
  padding: 24px 12px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.menu-item:active {
  transform: scale(0.97);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.menu-item a {
  text-decoration: none;
  color: #1d2129;
  font-size: 1.1rem;
  font-weight: 500;
  display: block;
}

/* 导航栏（其他页面用） */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav a {
  text-decoration: none;
  color: #1677ff;
  font-size: 0.95rem;
  padding: 6px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.nav a:hover {
  background-color: rgba(22, 119, 255, 0.1);
}

/* 表单样式 */
.form-item {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  display: block;
  width: auto;
  font-size: 1rem;
  color: #4e5969;
}

input, select {
  padding: 12px 14px;
  width: 100%;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  font-size: 1rem;
  background-color: #fff;
  transition: border-color 0.2s;
}

input:focus, select:focus {
  outline: none;
  border-color: #1677ff;
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.1);
}

button {
  padding: 12px 24px;
  background-color: #1677ff;
  color: #ffffff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: background-color 0.2s;
  width: 100%;
  max-width: 200px;
}

button:hover {
  background-color: #0d66d0;
}

button:active {
  background-color: #0a58b8;
}

/* 表格样式 */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.95rem;
  overflow-x: auto;
  display: block;
}

thead {
  background-color: #f9fafb;
}

th, td {
  border: 1px solid #e5e7eb;
  padding: 12px 10px;
  text-align: center;
  white-space: nowrap;
}

th {
  color: #4e5969;
  font-weight: 600;
}

td {
  color: #1d2129;
}

/* 响应式适配 */
@media (min-width: 768px) {
  body {
    padding: 20px;
  }
  .container {
    max-width: 768px;
  }
  .menu-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .form-item {
    flex-direction: row;
    align-items: center;
  }
  label {
    width: 100px;
    flex-shrink: 0;
  }
  input, select {
    flex: 1;
    max-width: 300px;
  }
  button {
    width: auto;
  }
  table {
    display: table;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}
/* 导航增强，手机自动换行，增加点击区域 */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom:16px;
}
.nav a {
  text-decoration: none;
  color:#1677ff;
  font-size:0.9rem;
  padding:8px 10px;
  border:1px solid #1677ff;
  border-radius:6px;
  white‑space:nowrap;
}
.nav a:hover {
  background:#1677ff;
  color:#fff;
}
/* 按钮组布局优化 - 移动端并排 */
form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.form-item {
  width: 100%;
}
form button {
  flex: 1;
  min-width: 120px;
}
.toggle-btn {
  background-color: #69b1ff;
}
.toggle-btn:hover {
  background-color: #4080ff;
}