/* 基础样式 */
:root {
    --primary-color: #43a5ee;
    --primary-hover: #2984c7;
    --secondary-color: #f8f9fa;
    --success-color: #28a745;
    --warn-color: #ffc107;
    --warn-hover: #e0a800;
    --error-color: #dc3545;
    --error-hover: #bd2130;
    --text-color: #2b2d42;
    --light-text: #6c757d;
    --border-color: #e9ecef;
    --bg-color: #ffffff;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: #f8fafc;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-color);
    line-height: 1.6;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* 主容器样式 */
#app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}

.main-content {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 5%;
    transition: opacity 0.3s ease;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    background-color: var(--bg-color);
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.85);
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo {
    height: 2.5rem;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.search-box {
    display: flex;
    align-items: center;
    position: relative;
}

.search-box input {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    outline: none;
    width: 12rem;
    font-size: 0.9rem;
    transition: var(--transition);
    padding-right: 2.5rem;
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.search-btn {
    position: absolute;
    right: 0.5rem;
    background: none;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    color: var(--primary-color);
}

.auth-buttons {
    display: flex;
    gap: 0.75rem;
}

.login-btn, .register-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 2rem;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.login-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.login-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.05);
}

/* 按钮样式 */
.btn-group {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.2);
}

.btn:disabled {
    background: #e9ecef;
    color: #adb5bd;
    cursor: not-allowed;
}

.btn-secondary {
    background: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #f8f9fa;
    border-color: #dee2e6;
    color: var(--text-color);
    transform: translateY(-1px);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  border: none;
}

.btn-warning {
    background-color: var(--warn-color);
    transition: var(--transition);
}
.btn-warning:hover {
    background-color: var(--warn-hover);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background-color: transparent;
  color: var(--text-color);
}

.btn-secondary:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
}
.register-btn {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.register-btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.2);
}

.icon-user {
    display: inline-block;
    font-style: normal;
    font-size: 16px;
    line-height: 1;
}

.icon-arrow-down {
    display: inline-block;
    font-style: normal;
    font-size: 12px;
    line-height: 1;
    margin-left: 4px;
    transition: transform 0.2s ease;
}
.user-info-container:hover .dropdown-menu,
.dropdown-menu:hover {
    display: block;
}

/* 在.dropdown-menu和.user-profile之间添加连接区域 */
.user-info-container::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 8px;
    background: transparent;
}
.user-info-container {
    position: relative;
    display: flex;
    align-items: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.user-profile:hover {
    background-color: #f5f5f5;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #f0f2f5;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1rem;
}

.username {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 500;
    white-space: nowrap;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.icon-arrow-down {
    font-size: 0.8rem;
    color: var(--light-text);
    transition: transform 0.2s ease;
}

.user-profile:hover .icon-arrow-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--bg-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
    min-width: 160px;
    z-index: 1001;
    display: none;
    margin-top: 8px;
}

.user-info-container:hover .dropdown-menu {
    display: block;
}


.dropdown-item {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background-color: #f8f9fa;
    color: var(--primary-color);
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0.5rem 0;
}

/* 更新退出按钮样式 */
.logout-btn {
    width: 100%;
    text-align: left;
    padding: 0.5rem 1rem;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.logout-btn:hover {
    background-color: #f8f9fa;
    color: #f44336;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .user-info-container {
        gap: 0.5rem;
    }

    .username {
        display: none;
    }

    .dropdown-menu {
        right: -50px;
    }
}
/* 响应式设计 */
@media (max-width: 992px) {
    .navbar {
        padding: 1rem;
    }

    .nav-menu {
        display: none;
    }

    .search-box input {
        width: 10rem;
    }
}

@media (max-width: 768px) {
    .nav-right {
        gap: 0.75rem;
    }

    .search-box {
        display: none;
    }

    .auth-buttons {
        gap: 0.5rem;
    }

    .login-btn, .register-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}
.page-transition {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease-out;
}

.page-loaded {
    opacity: 1;
    transform: translateY(0);
}
.toast {
    position: fixed;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    padding: 16px 24px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 80%;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 1000;
    pointer-events: all;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.toast-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.toast-message {
    font-size: 14px;
    line-height: 1.5;
}

/* 不同类型样式 */
.toast-success {
    color: #2e7d32;
    border-left: 4px solid #2e7d32;
}

.toast-error {
    color: #d32f2f;
    border-left: 4px solid #d32f2f;
}

.toast-warning {
    color: #ed6c02;
    border-left: 4px solid #ed6c02;
}

.toast-info {
    color: #0288d1;
    border-left: 4px solid #0288d1;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    to { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
}

.toast.show {
    animation: fadeIn 0.3s ease-out forwards;
}

.toast:not(.show) {
    animation: fadeOut 0.3s ease-in forwards;
}
.confirm-modal {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.5);
      z-index: 1000;
      display: flex;
      justify-content: center;
      align-items: center;
      opacity: 0;
      transition: opacity 0.3s ease;
}

.confirm-modal.show {
  opacity: 1;
}

.confirm-modal-content {
  background-color: #fff;
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transform: translateY(-20px);
  transition: all 0.3s ease;
  overflow: hidden;
}

.confirm-modal.show .confirm-modal-content {
  transform: translateY(0);
}

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

.confirm-modal-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #333;
}

.confirm-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  padding: 0;
  line-height: 1;
}

.confirm-modal-close:hover {
  color: #666;
}

.confirm-modal-body {
  padding: 20px;
  color: #555;
  line-height: 1.5;
}

.confirm-modal-footer {
  padding: 12px 20px;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  border-top: 1px solid #eee;
}

.confirm-btn {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 80px;
}

.confirm-btn-cancel {
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
}

.confirm-btn-cancel:hover {
  background-color: #eaeaea;
}

.confirm-btn-ok {
  background-color: #ff4444;
  color: white;
  border: 1px solid #ff4444;
}

.confirm-btn-ok:hover {
  background-color: #e53935;
}