/* 
 * IP.85LA.COM - 现代化IP查询工具
 * 改进版样式表 - 优化卡片布局和信息展示
 */

/* ===== 变量与基础设置 ===== */
:root {
  /* 主色调 */
  --primary-color: #0071e3;
  --primary-hover: #0077ed;
  --primary-color-dark: #005bbf;
  --primary-light: #e8f0fe;
  
  /* 辅助色 */
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --info-color: #4285f4;
  
  /* 中性色 */
  --text-primary: #2c3e50;
  --text-secondary: #6c757d;
  --text-tertiary: #9aa0a6;
  --border-color: #e9ecef;
  --background-color: #f8f9fa;
  --card-background: #ffffff;
  
  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
  --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  
  /* 动画 */
  --transition: all 0.3s ease;
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

/* ===== 全局重置 ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
  overflow-x: hidden;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== 布局容器 ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== 头部导航 ===== */
.header {
  background-color: var(--card-background);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo img {
  height: 32px;
  margin-right: 0.75rem;
}

.nav {
  display: flex;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 0.75rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: var(--primary-light);
  transform: translateY(-1px);
}

.nav-link i {
  font-size: 1.1rem;
}

/* 移动导航触发器 */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ===== 搜索框 ===== */
.search-container {
  padding: 2.5rem 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.search-container::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
  opacity: 0.6;
  z-index: 1;
}

.search-box {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--card-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
}

.search-box form {
  display: flex;
  gap: 1rem;
}

.search-box input {
  flex: 1;
  padding: 1rem 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.search-box button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.2);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.search-box button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 113, 227, 0.3);
}

/* ===== 标题样式 ===== */
.section-title {
  font-size: 1.75rem;
  margin: 2.5rem 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.75rem;
}

.section-title i {
  color: var(--primary-color);
}

/* ===== 网格布局 ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
  animation: fadeIn 0.5s ease-out;
}

/* 安全检测网格布局 */
.security-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ===== 卡片基础样式 ===== */
.card {
  background: var(--card-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  width: 100%;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

.card-content {
  padding: 1.25rem;
}

/* ===== IP信息卡片样式 ===== */
.ip-info-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 1.5rem;
}

.ip-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
  flex: 1;
  min-width: 300px;
}

/* 健康度评分样式 */
.health-score-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 250px;
  max-width: 350px;
  padding: 1rem;
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
}

.score-circle {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: 1rem;
}

.score-circle svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.score-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  font-weight: bold;
  color: var(--text-primary);
}

.score-details {
  width: 100%;
  text-align: center;
}

.score-level {
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.score-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.score-breakdown {
  width: 100%;
}

.score-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  flex-wrap: nowrap;
}

.score-label {
  flex: 0 0 120px;
  text-align: left;
  padding-right: 0.5rem;
  white-space: nowrap;
  font-size: 0.8rem;
}

.score-bar-container {
  flex: 2;
  min-width: 50px;
  height: 6px;
  background-color: #eee;
  border-radius: 3px;
  overflow: hidden;
}

.score-bar {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.score-value-small {
  flex: 0 0 30px;
  text-align: right;
  font-weight: bold;
}

/* 安全检测表格样式 */
.security-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  background-color: var(--card-background);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.security-table th,
.security-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
}

.security-table th:last-child,
.security-table td:last-child {
  border-right: none;
}

.security-table th {
  background-color: rgba(0, 0, 0, 0.03);
  font-weight: 600;
  color: var(--text-primary);
  padding: 1rem;
}

.security-table tr:hover {
  background-color: rgba(0, 0, 0, 0.01);
}

.security-table tr:last-child td {
  border-bottom: none;
}

.security-table td:first-child {
  width: 180px;
  white-space: nowrap;
  background-color: rgba(0, 0, 0, 0.01);
  font-weight: 500;
}

.security-table td:nth-child(2) {
  width: 100px;
  white-space: nowrap;
  text-align: center;
}

.security-table .fingerprint-item {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
}

.security-table .fingerprint-item:last-child {
  margin-bottom: 0;
}

.security-table .action-button-container {
  margin-top: 0.75rem;
  padding: 0.5rem;
  background-color: transparent;
  border: none;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .ip-info-container {
    flex-direction: column;
  }
  
  .health-score-container {
    max-width: 100%;
    margin-top: 1.5rem;
  }
  
  .security-table {
    display: block;
    overflow-x: auto;
  }
  
  .security-table td:first-child,
  .security-table td:nth-child(2) {
    width: auto;
  }
}

.ip-info-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ip-info-item strong {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: block;
}

.ip-info-item span {
  font-size: 1rem;
  color: var(--text-primary);
  word-break: break-word;
  display: block;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* 详细信息项占据整行 */
.ip-info-item[style="grid-column: 1 / -1;"] {
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

/* ===== 地图卡片样式 ===== */
.map-card {
  grid-column: 1 / -1;
}

.map-container {
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ===== 安全检测模块样式 ===== */
.security-card {
  width: 100%;
  background: var(--card-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.security-card .card-title {
  display: flex;
  align-items: center;
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.security-card .card-title i {
  margin-right: 0.75rem;
  font-size: 1.3rem;
  color: var(--primary-color);
}

.security-card .card-content {
  padding: 1.25rem 1.5rem;
}

/* 安全检测状态样式 */
.security-status {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
}

/* 安全检测内容样式 */
.security-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.5rem 0;
}

/* 信息项样式 */
.info-item {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.info-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 0.5rem;
}

.info-label::before {
  font-family: "bootstrap-icons";
  content: "\F26B"; /* bi-check-circle-fill */
  color: var(--success-color);
  font-size: 1.1rem;
}

.info-value {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 检测项目列表样式 */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.ip-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: var(--transition-fast);
}

.ip-item:hover {
  background-color: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 113, 227, 0.2);
}

.fingerprint-name, .ip-label {
  flex: 0 0 120px;
  font-weight: 500;
  cursor: help;
  color: var(--text-primary);
}

.fingerprint-value, .ip-value {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
}

/* 检测状态样式 */
.fingerprint-value.detected, .ip-value.detected {
  background-color: rgba(255, 152, 0, 0.15);
  color: #e65100;
}

.fingerprint-value.not-supported, .ip-value.not-supported {
  background-color: rgba(158, 158, 158, 0.15);
  color: #424242;
}

.fingerprint-value.needs-interaction, .ip-value.needs-interaction {
  background-color: rgba(33, 150, 243, 0.15);
  color: #0277bd;
}

.fingerprint-value.warning, .ip-value.warning {
  background-color: rgba(255, 87, 34, 0.15);
  color: #d84315;
}

.fingerprint-value.safe, .ip-value.safe {
  background-color: rgba(76, 175, 80, 0.15);
  color: #2e7d32;
}

.check-item.success {
  background-color: rgba(40, 167, 69, 0.05);
  border-color: rgba(40, 167, 69, 0.2);
}

.check-item.warning {
  background-color: rgba(255, 193, 7, 0.05);
  border-color: rgba(255, 193, 7, 0.2);
}

.check-item.error {
  background-color: rgba(220, 53, 69, 0.05);
  border-color: rgba(220, 53, 69, 0.2);
}

.check-item i {
  font-size: 1rem;
}

.check-item.success i {
  color: var(--success-color);
}

.check-item.warning i {
  color: var(--warning-color);
}

.check-item.error i {
  color: var(--error-color);
}

.check-item-label {
  font-weight: 500;
  min-width: 120px;
}

.check-item-value {
  color: var(--text-secondary);
  flex: 1;
}

/* 风险等级标签 */
.risk-level {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.85rem;
  margin-left: 0.5rem;
}

.risk-level.high {
  background-color: rgba(220, 53, 69, 0.15);
  color: var(--error-color);
}

.risk-level.medium {
  background-color: rgba(255, 193, 7, 0.15);
  color: var(--warning-color);
}

.risk-level.low {
  background-color: rgba(40, 167, 69, 0.15);
  color: var(--success-color);
}

.security-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  border: 1px solid var(--border-color);
}

.detail-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.9rem;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
}

.detail-label i {
  color: var(--primary-color);
  font-size: 1rem;
}

.detail-value {
  font-size: 0.95rem;
  color: var(--text-secondary);
  word-break: break-word;
}

/* 状态行样式 */
.status-row {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.06);
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.status-row:last-child {
  margin-bottom: 0;
}

.status-label {
  min-width: 120px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-label i {
  color: var(--primary-color);
  font-size: 1.1rem;
}

.status-value {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* 状态徽章样式 */
.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  background-color: rgba(95, 99, 104, 0.1);
  color: var(--text-secondary);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  min-width: 80px;
  position: relative;
  text-align: center;
  width: 100%;
  overflow: hidden; /* 防止内容溢出 */
  text-overflow: ellipsis; /* 溢出时显示省略号 */
  white-space: nowrap; /* 防止文本换行 */
}

.status-badge::before {
  font-family: "bootstrap-icons";
  margin-right: 0.5rem;
  font-size: 1.1rem;
}

.status-badge.success {
  background-color: rgba(40, 167, 69, 0.15);
  color: var(--success-color);
  border: 1px solid rgba(40, 167, 69, 0.3);
}

.status-badge.success::before {
  content: "\F26B"; /* bi-check-circle-fill */
}

.status-badge.warning {
  background-color: rgba(255, 193, 7, 0.15);
  color: var(--warning-color);
  border: 1px solid rgba(255, 193, 7, 0.3);
}

.status-badge.warning::before {
  content: "\F333"; /* bi-exclamation-triangle-fill */
}

.status-badge.error {
  background-color: rgba(220, 53, 69, 0.15);
  color: var(--error-color);
  border: 1px solid rgba(220, 53, 69, 0.3);
}

.status-badge.error::before {
  content: "\F623"; /* bi-x-circle-fill */
}

.status-badge.loading {
  background-color: rgba(66, 133, 244, 0.15);
  color: var(--info-color);
  border: 1px solid rgba(66, 133, 244, 0.3);
}

.status-badge.loading::before {
  content: "\F130"; /* bi-arrow-repeat */
  animation: spin 1.5s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 状态文本样式 */
.status-text {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

.status-text.error {
  color: var(--error-color);
  background-color: rgba(220, 53, 69, 0.1);
}

.status-text.loading {
  color: var(--info-color);
  background-color: rgba(66, 133, 244, 0.1);
}

.status-text.success {
  color: var(--success-color);
  background-color: rgba(40, 167, 69, 0.1);
}

.status-text.warning {
  color: var(--warning-color);
  background-color: rgba(255, 193, 7, 0.1);
}

/* 操作按钮容器 */
.action-button-container {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-color);
}

/* 操作按钮样式 */
.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  background-color: var(--primary-color);
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  min-width: 140px;
  box-shadow: var(--shadow-sm);
}

.action-button:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.action-button i {
  font-size: 1.1rem;
}

/* ===== 网络联通性模块样式 ===== */
.connectivity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.connectivity-card {
  background: var(--card-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.connectivity-grid .card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.02);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.connectivity-grid .card-title i {
  color: var(--primary-color);
  font-size: 1.1rem;
}

.connectivity-grid .card-content {
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.connectivity-card .card-content {
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.connectivity-card .card-content > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  overflow: hidden; /* 防止内容溢出 */
}

.connectivity-card .card-content > div:first-child {
  margin-bottom: 0.5rem;
}

.connectivity-card .status-label {
  min-width: 40px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.9rem;
  white-space: nowrap; /* 防止文本换行 */
  margin-right: 0.5rem; /* 增加右侧间距 */
}

.connectivity-grid .card-content div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  color: var(--text-primary);
}

/* ===== 页脚样式 ===== */
.footer {
  background-color: var(--card-background);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  margin-top: 3rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== 动画 ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

/* ===== 响应式布局 ===== */
@media (max-width: 992px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .connectivity-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .ip-info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-list {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .search-box form {
    flex-direction: column;
  }
  
  .search-box button {
    width: 100%;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .connectivity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .ip-info-grid {
    grid-template-columns: 1fr;
  }
  
  .security-card .card-content {
    padding: 1rem;
  }
  
  .security-card .card-title {
    padding: 1rem;
    font-size: 1.1rem;
  }
  
  .status-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .status-label {
    margin-bottom: 0.25rem;
  }
  
  .action-button-container {
    flex-direction: column;
  }
  
  .action-button {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .connectivity-grid {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .map-container {
    height: 300px;
  }
}

/* 移动导航响应式 */
@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-list {
    display: none;
  }
  
  .nav-list.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-background);
    box-shadow: var(--shadow-md);
    padding: 1rem;
    z-index: 1000;
  }
}