/* ========================================
   jia2027jia3 网址导航程序 - 主样式文件
   ======================================== */

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

/* 容器 - 27 寸屏幕优化 */
.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   首页样式
   ======================================== */

.home-page {
  min-height: 100vh;
  padding-bottom: 60px;
}

/* 网站标题 */
.site-header {
  text-align: center;
  padding: 40px 20px;
}

.site-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: 2px;
}

/* 区域通用样式 */
.zone {
  padding: 30px 20px;
  margin: 20px auto;
}

.zone-title {
  text-align: center;
  font-size: clamp(18px, 2vw, 24px);
  margin-bottom: 25px;
  font-weight: 600;
}

/* 链接网格布局 */
.link-grid {
  display: grid;
  gap: 15px;
  justify-content: center;
}

/* 区域 1 - 5 列×4 行 = 20 个网址 (最大区域) */
.link-grid-zone1 {
  grid-template-columns: repeat(5, 1fr);
  grid-auto-rows: minmax(80px, auto);
  max-width: 1400px;
  margin: 0 auto;
}

/* 区域 2 - 5 列×2 行 = 10 个网址 */
.link-grid-zone2 {
  grid-template-columns: repeat(5, 1fr);
  grid-auto-rows: minmax(70px, auto);
  max-width: 1200px;
  margin: 0 auto;
}

/* 区域 3 - 5 列×3 行 = 15 个网址 (第二大) */
.link-grid-zone3 {
  grid-template-columns: repeat(5, 1fr);
  grid-auto-rows: minmax(75px, auto);
  max-width: 1300px;
  margin: 0 auto;
}

/* 链接卡片样式 */
.link-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  padding: 15px 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  min-width: 180px;
  height: 80px;
}

.link-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.link-name {
  font-size: 16px;
  font-weight: 600;
  text-align: center;
}

.link-desc {
  font-size: 12px;
  opacity: 0.8;
  margin-top: 5px;
  text-align: center;
}

/* 管理员入口 */
.admin-entry {
  text-align: center;
  padding: 40px 20px;
  margin-top: 30px;
}

.admin-btn {
  display: inline-block;
  padding: 12px 30px;
  background: #1B5E20;
  color: #FFFFFF;
  border-radius: 25px;
  font-size: 16px;
  font-weight: 500;
  margin: 0 10px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.admin-btn:hover {
  background: #4CAF50;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(27, 94, 32, 0.3);
}

.admin-btn.logout {
  background: #666;
}

.admin-btn.logout:hover {
  background: #888;
}

/* 页脚 */
.footer {
  background: rgba(0, 0, 0, 0.05);
  padding: 20px;
  text-align: center;
  margin-top: 40px;
}

.footer p {
  font-size: 14px;
  opacity: 0.7;
}

/* ========================================
   管理员后台样式
   ======================================== */

/* 登录页面 */
.admin-login-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
}

.login-container {
  background: #FFFFFF;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 400px;
}

.login-title {
  text-align: center;
  color: #1B5E20;
  font-size: 28px;
  margin-bottom: 30px;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.login-form label {
  display: block;
  margin-bottom: 8px;
  color: #333;
  font-weight: 500;
}

.login-form input {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s;
}

.login-form input:focus {
  outline: none;
  border-color: #4CAF50;
}

.login-btn {
  width: 100%;
  padding: 14px;
  background: #1B5E20;
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: #4CAF50;
}

.error-msg {
  color: #d32f2f;
  background: #ffebee;
  padding: 10px 15px;
  border-radius: 6px;
  margin-bottom: 15px;
  text-align: center;
}

.success-msg {
  color: #2e7d32;
  background: #e8f5e9;
  padding: 10px 15px;
  border-radius: 6px;
  margin-bottom: 15px;
  text-align: center;
}

.login-footer {
  text-align: center;
  margin-top: 20px;
  color: #666;
}

.login-footer a {
  color: #1B5E20;
}

/* 后台管理面板 */
.admin-dashboard {
  min-height: 100vh;
  background: #f5f5f5;
}

.admin-header {
  background: #1B5E20;
  color: #FFFFFF;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.admin-header h1 {
  font-size: 24px;
}

.admin-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-btn {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  border-radius: 6px;
  transition: background 0.3s;
  border: none;
  cursor: pointer;
  font-size: 14px;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.nav-btn.logout {
  background: rgba(255, 255, 255, 0.1);
}

.admin-content {
  padding: 30px 20px;
}

/* 后台卡片 */
.dashboard-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.card {
  background: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  color: #333;
  font-size: 16px;
  margin-bottom: 15px;
}

.card-number {
  font-size: 42px;
  font-weight: 700;
  color: #1B5E20;
  margin-bottom: 15px;
}

.card-link {
  color: #4CAF50;
  font-weight: 500;
}

.card-link:hover {
  text-decoration: underline;
}

/* 快速导航 */
.quick-links {
  background: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.quick-links h2 {
  color: #1B5E20;
  margin-bottom: 15px;
  font-size: 20px;
}

.quick-links ul {
  list-style: none;
}

.quick-links li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

.quick-links li:last-child {
  border-bottom: none;
}

.quick-links a {
  color: #1B5E20;
  font-weight: 600;
}

.quick-links a:hover {
  text-decoration: underline;
}

/* 管理面板表单 */
.admin-panel {
  min-height: 100vh;
  background: #f5f5f5;
}

.admin-form {
  background: #FFFFFF;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.admin-form.wide {
  max-width: 900px;
  margin: 0 auto;
}

.form-section {
  margin-bottom: 30px;
  padding-bottom: 25px;
  border-bottom: 1px solid #eee;
}

.form-section h2 {
  color: #1B5E20;
  font-size: 18px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #333;
  font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="url"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  font-size: 15px;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4CAF50;
}

.form-group input[type="color"] {
  width: 80px;
  height: 45px;
  padding: 3px;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  cursor: pointer;
}

.form-group-inline {
  display: flex;
  gap: 20px;
}

.form-group-inline .form-group {
  flex: 1;
}

.color-value {
  margin-left: 10px;
  font-family: monospace;
  color: #666;
}

.help-text {
  font-size: 13px;
  color: #666;
  margin-top: 8px;
  line-height: 1.5;
}

.form-actions {
  margin-top: 25px;
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 12px 25px;
  background: #1B5E20;
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-primary:hover {
  background: #4CAF50;
}

.btn-secondary {
  padding: 12px 25px;
  background: #9E9E9E;
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.btn-secondary:hover {
  background: #757575;
}

/* 网址管理表格 */
.add-form {
  background: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  margin-bottom: 30px;
}

.add-form h2 {
  color: #1B5E20;
  font-size: 18px;
  margin-bottom: 20px;
}

.admin-form.inline {
  box-shadow: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: flex-end;
}

.admin-form.inline .form-group {
  flex: 1;
  min-width: 120px;
  margin-bottom: 0;
}

.admin-form.inline .form-group label {
  font-size: 13px;
}

.links-table-container {
  background: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow-x: auto;
}

.links-table-container h2 {
  color: #1B5E20;
  font-size: 18px;
  margin-bottom: 20px;
}

.links-table {
  width: 100%;
  border-collapse: collapse;
}

.links-table th,
.links-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.links-table th {
  background: #f5f5f5;
  font-weight: 600;
  color: #333;
}

.links-table tr:hover {
  background: #f9f9f9;
}

.zone-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.zone-badge.zone-1 {
  background: #E8F5E9;
  color: #1B5E20;
}

.zone-badge.zone-2 {
  background: #E3F2FD;
  color: #1565C0;
}

.zone-badge.zone-3 {
  background: #FFF3E0;
  color: #E65100;
}

.url-link {
  color: #4CAF50;
  font-size: 13px;
}

.actions {
  display: flex;
  gap: 8px;
}

.btn-edit {
  padding: 6px 12px;
  background: #2196F3;
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
}

.btn-edit:hover {
  background: #1976D2;
}

.btn-delete {
  padding: 6px 12px;
  background: #f44336;
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
}

.btn-delete:hover {
  background: #d32f2f;
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  background: #FFFFFF;
  margin: 5% auto;
  padding: 30px;
  border-radius: 12px;
  max-width: 500px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.close {
  position: absolute;
  right: 20px;
  top: 15px;
  font-size: 28px;
  font-weight: bold;
  color: #666;
  cursor: pointer;
}

.close:hover {
  color: #333;
}

/* 备忘录列表 */
.memos-header {
  margin-bottom: 25px;
}

.memos-list {
  display: grid;
  gap: 20px;
}

.memo-card {
  background: #FFFFFF;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.memo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  flex-wrap: wrap;
  gap: 10px;
}

.memo-header h3 {
  color: #1B5E20;
  font-size: 18px;
}

.memo-date {
  color: #999;
  font-size: 13px;
}

.memo-preview {
  color: #666;
  line-height: 1.8;
  margin-bottom: 15px;
  white-space: pre-wrap;
  font-family: monospace;
  background: #f9f9f9;
  padding: 15px;
  border-radius: 8px;
}

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

.empty-msg {
  text-align: center;
  color: #999;
  padding: 40px;
}

/* 404 页面 */
.error-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
  text-align: center;
}

.error-page h1 {
  font-size: 120px;
  color: #1B5E20;
  font-weight: 700;
}

.error-page p {
  font-size: 24px;
  color: #666;
  margin-bottom: 30px;
}

/* ========================================
   响应式设计
   ======================================== */

/* 超大屏幕 (27 寸及以上) */
@media (min-width: 2000px) {
  .container {
    max-width: 2000px;
  }
  
  .link-grid-zone1 {
    max-width: 1800px;
  }
  
  .link-grid-zone2 {
    max-width: 1500px;
  }
  
  .link-grid-zone3 {
    max-width: 1600px;
  }
  
  .link-card {
    min-width: 220px;
    height: 95px;
  }
  
  .link-name {
    font-size: 18px;
  }
  
  .site-title {
    font-size: 56px;
  }
}

/* 平板和笔记本 */
@media (max-width: 1200px) {
  .link-grid-zone1,
  .link-grid-zone2,
  .link-grid-zone3 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .link-card {
    min-width: 150px;
    height: 70px;
  }
}

/* 小平板 */
@media (max-width: 900px) {
  .link-grid-zone1,
  .link-grid-zone2,
  .link-grid-zone3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .site-title {
    font-size: 32px;
  }
}

/* 手机横屏 */
@media (max-width: 600px) {
  .link-grid-zone1,
  .link-grid-zone2,
  .link-grid-zone3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .link-card {
    min-width: 130px;
    height: 60px;
  }
  
  .link-name {
    font-size: 14px;
  }
  
  .admin-form.inline {
    flex-direction: column;
  }
  
  .admin-form.inline .form-group {
    width: 100%;
  }
}

/* 手机竖屏 */
@media (max-width: 400px) {
  .link-grid-zone1,
  .link-grid-zone2,
  .link-grid-zone3 {
    grid-template-columns: 1fr;
  }
  
  .link-card {
    min-width: 100%;
  }
}