* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #f1f2f3;
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 1600px;
  min-width: 1240px;
  margin: 25px auto;
  color: #333;
  display: flex;
  flex-direction: column;
}

.container * {
  box-sizing: border-box;
}

/* 头部样式 */
header {
  position: relative;
  margin-bottom: 20px;
  text-align: center;
}

header h1 {
  font-size: 32px;
  margin-bottom: 5px;
}

header p {
  font-size: 16px;
  line-height: 1.6;
}

.main{
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 25px;
}

.search-box {
  display: flex;
  gap: 10px;
}

.domain-input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

.record-type {
  width: 150px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

.search-btn {
  padding: 12px 25px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  transition: background-color 0.3s;
  min-width: 120px;
}

.search-btn:hover {
  background-color: #2980b9;
}

.search-btn.load {
  position: relative;
  opacity: 0.7;
}
.search-btn.load:after {
  content: "";
  position: absolute;
  right: 18px;
  top: calc(50% - 7px);
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.result-container h2{
  margin-top: 25px;
  font-size: 22px;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.result-table th,
.result-table td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: left;
}

.result-table th {
  background-color: #f8f9fa;
  font-weight: bold;
}

.result-table tr:nth-child(even) {
  background-color: #f9f9f9;
}

.loading {
  text-align: center;
  padding: 20px;
  display: none;
}

.error {
  color: #e74c3c;
  padding: 15px;
  background-color: #fdecea;
  border-radius: 4px;
  margin-top: 25px;
  display: none;
}

.info-section {
  margin-bottom: 25px;
  padding: 20px;
  background-color: #fff;
  border-radius: 12px;
}

.info-section h2 {
  font-size: 22px;
  margin-bottom: 15px;
  color: #2c3e50;
}

.info-item p{
  margin-top: 15px;
  color: #777;
}

.info-item p span{
  display: inline-block;
  font-weight: 700;
  margin-right: 5px;
  color: #2980b9;
  min-width: 100px;
}

footer {
  text-align: center;
  color: #7f8c8d;
  font-size: 14px;
}

.record-icon {
  font-size: 20px;
  margin-right: 5px;
  vertical-align: middle;
}