/* ============================================
   成绩查询系统 - 全局样式
   简约商务风格，白色为主色调
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

html, body {
  height: 100%;
  background: #f0f2f5;
  color: #333;
  font-size: 14px;
}

a {
  color: #409eff;
  text-decoration: none;
}

a:hover {
  color: #66b1ff;
}

/* ========== 登录页面样式 ========== */
.login-page {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #f5f5f5;
}

.login-header {
  width: 100%;
  padding: 20px 50px;
  background: #fff;
  border-bottom: 1px solid #eee;
}

.login-header .logo {
  font-size: 22px;
  font-weight: bold;
  color: #333;
}

.login-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 120px;
}

.login-box {
  width: 420px;
  background: #fff;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.login-title {
  font-size: 22px;
  margin-bottom: 8px;
  text-align: center;
  color: #333;
}

.login-subtitle {
  font-size: 13px;
  color: #999;
  text-align: center;
  margin-bottom: 30px;
}

.login-select {
  width: 100%;
}

.form-item {
  margin-bottom: 18px;
}

.form-item label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: #666;
}

.form-item input,
.form-item select {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-item input:focus,
.form-item select:focus {
  border-color: #409eff;
}

.form-item select {
  background: #fff;
  cursor: pointer;
}

.login-btn {
  width: 100%;
  height: 44px;
  background: #409eff;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.2s;
}

.login-btn:hover {
  background: #337ecc;
}

.login-footer {
  height: 60px;
  line-height: 60px;
  text-align: center;
  font-size: 13px;
  color: #999;
  background: #fff;
  border-top: 1px solid #eee;
}

/* ========== 后台管理布局 ========== */
.admin-layout {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.admin-header {
  height: 56px;
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  z-index: 10;
}

.admin-header .hd-left {
  display: flex;
  align-items: center;
}

.admin-header .hd-title {
  font-size: 17px;
  font-weight: bold;
  color: #333;
  margin-left: 10px;
}

.admin-header .hd-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.admin-header .hd-user {
  font-size: 13px;
  color: #666;
}

.admin-header .hd-btn {
  padding: 6px 16px;
  font-size: 13px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #fff;
  color: #666;
  cursor: pointer;
  transition: all 0.2s;
}

.admin-header .hd-btn:hover {
  color: #409eff;
  border-color: #409eff;
}

.admin-header .hd-btn.danger:hover {
  color: #f56c6c;
  border-color: #f56c6c;
}

.admin-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ========== 左侧菜单 ========== */
.admin-sidebar {
  width: 220px;
  background: #fff;
  border-right: 1px solid #e8e8e8;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-menu {
  list-style: none;
  padding: 8px 0;
}

.sidebar-menu li {
  padding: 0;
}

.sidebar-menu li a {
  display: block;
  padding: 12px 24px;
  font-size: 14px;
  color: #606266;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.sidebar-menu li a:hover {
  color: #409eff;
  background: #ecf5ff;
}

.sidebar-menu li a.active {
  color: #409eff;
  background: #ecf5ff;
  border-left-color: #409eff;
  font-weight: bold;
}

.sidebar-menu .menu-group {
  padding: 16px 24px 6px;
  font-size: 12px;
  color: #b0b0b0;
  text-transform: uppercase;
}

/* ========== 右侧内容区 ========== */
.admin-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  background: #f0f2f5;
}

.content-card {
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  padding: 20px;
}

.content-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #f0f0f0;
}

.content-card .card-title {
  font-size: 16px;
  font-weight: bold;
  color: #333;
}

.content-card .card-actions {
  display: flex;
  gap: 10px;
}

/* ========== 表格样式 ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid #f0f0f0;
}

.data-table th {
  background: #fafafa;
  font-weight: bold;
  color: #606266;
  font-size: 13px;
}

.data-table tr:hover td {
  background: #f5f7fa;
}

.data-table .text-center {
  text-align: center;
}

.data-table .text-right {
  text-align: right;
}

/* ========== 按钮样式 ========== */
.btn {
  display: inline-block;
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  outline: none;
}

.btn-primary {
  background: #409eff;
  color: #fff;
  border-color: #409eff;
}

.btn-primary:hover {
  background: #337ecc;
}

.btn-success {
  background: #67c23a;
  color: #fff;
  border-color: #67c23a;
}

.btn-success:hover {
  background: #5daf34;
}

.btn-warning {
  background: #e6a23c;
  color: #fff;
  border-color: #e6a23c;
}

.btn-warning:hover {
  background: #cf9236;
}

.btn-danger {
  background: #f56c6c;
  color: #fff;
  border-color: #f56c6c;
}

.btn-danger:hover {
  background: #dc5c5c;
}

.btn-default {
  background: #fff;
  color: #606266;
  border-color: #dcdfe6;
}

.btn-default:hover {
  color: #409eff;
  border-color: #409eff;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}

.btn-link {
  background: none;
  border: none;
  color: #409eff;
  padding: 4px 8px;
  cursor: pointer;
}

.btn-link.danger {
  color: #f56c6c;
}

/* ========== 搜索筛选栏 ========== */
.search-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 16px;
}

.search-bar input,
.search-bar select {
  height: 36px;
  padding: 0 12px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  font-size: 13px;
  outline: none;
}

.search-bar input:focus,
.search-bar select:focus {
  border-color: #409eff;
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding-top: 12px;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  background: #fff;
  font-size: 13px;
  cursor: pointer;
}

.pagination button:hover {
  color: #409eff;
  border-color: #409eff;
}

.pagination button.active {
  background: #409eff;
  color: #fff;
  border-color: #409eff;
}

.pagination .page-info {
  font-size: 13px;
  color: #999;
  margin: 0 8px;
}

/* ========== 弹窗/模态框 ========== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal-overlay.show {
  display: flex;
}

.modal-box {
  background: #fff;
  border-radius: 6px;
  padding: 24px;
  width: 90%;
  max-width: 520px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.modal-box .modal-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #333;
}

.modal-box .modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}

/* ========== 数据看板 ========== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: #fff;
  border-radius: 6px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  text-align: center;
}

.stat-card .stat-num {
  font-size: 32px;
  font-weight: bold;
  color: #409eff;
  margin-bottom: 6px;
}

.stat-card .stat-label {
  font-size: 13px;
  color: #999;
}

.stat-card.green .stat-num { color: #67c23a; }
.stat-card.orange .stat-num { color: #e6a23c; }
.stat-card.red .stat-num { color: #f56c6c; }

/* ========== 学生查询页面 ========== */
.query-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #f0f2f5;
}

.query-header {
  background: #fff;
  padding: 18px 40px;
  border-bottom: 1px solid #eee;
  text-align: center;
}

.query-header h1 {
  font-size: 22px;
  color: #333;
}

.query-body {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
}

.query-card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  padding: 36px;
  width: 100%;
  max-width: 600px;
}

.query-card h2 {
  text-align: center;
  font-size: 20px;
  margin-bottom: 28px;
  color: #333;
}

.query-result {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid #f0f0f0;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.result-table th,
.result-table td {
  padding: 10px 8px;
  border-bottom: 1px solid #f0f0f0;
  text-align: center;
}

.result-table th {
  background: #fafafa;
  color: #606266;
}

.result-info {
  margin-bottom: 16px;
  font-size: 14px;
  color: #666;
  line-height: 2;
}

.result-info span {
  color: #333;
  font-weight: bold;
}

/* ========== 状态标签 ========== */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 12px;
}

.tag-success { background: #f0f9eb; color: #67c23a; }
.tag-warning { background: #fdf6ec; color: #e6a23c; }
.tag-danger { background: #fef0f0; color: #f56c6c; }
.tag-info { background: #ecf5ff; color: #409eff; }

/* ========== 公告弹窗 ========== */
.announce-popup {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  z-index: 2000;
  max-width: 500px;
  width: 90%;
}

.announce-popup.show {
  display: block;
}

.announce-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1999;
}

.announce-overlay.show {
  display: block;
}

/* ========== 工具类 ========== */
.text-muted { color: #999; }
.text-danger { color: #f56c6c; }
.text-success { color: #67c23a; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.text-center { text-align: center; }
.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }