/* ========================================
   旅记 - 高端大气的旅游记录系统
   ======================================== */

:root {
  /* 主色调 - 深邃优雅的蓝绿色系 */
  --primary: #1a3a4a;
  --primary-light: #2d5a6e;
  --primary-dark: #0f252f;
  
  /* 强调色 - 温暖的金色 */
  --accent: #c9a962;
  --accent-light: #e6d4a8;
  --accent-dark: #9a7b3f;
  
  /* 背景色 */
  --bg-dark: #0d1b21;
  --bg-card: rgba(26, 58, 74, 0.4);
  --bg-card-hover: rgba(45, 90, 110, 0.5);
  
  /* 文字颜色 */
  --text-primary: #f5f5f5;
  --text-secondary: #a8c4d4;
  --text-muted: #6b8a9a;
  
  /* 其他 */
  --border: rgba(201, 169, 98, 0.2);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-sm: 6px;
  
  /* 过渡 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Serif SC', 'Georgia', serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ========================================
   背景装饰
   ======================================== */
.bg-decoration {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.bg-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 20% 20%, rgba(26, 58, 74, 0.8) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(201, 169, 98, 0.15) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-dark) 0%, #0a1419 100%);
}

.bg-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(201, 169, 98, 0.03) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(201, 169, 98, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: rgba(13, 27, 33, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon {
  font-size: 1.25rem;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.brand-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.25rem 0;
  position: relative;
  transition: var(--transition);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.btn-admin-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-admin-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-admin-toggle.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--primary-dark);
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(201, 169, 98, 0.3);
}

.btn-add:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(201, 169, 98, 0.4);
}

.btn-add span {
  font-size: 1.2rem;
  font-weight: 700;
}

/* ========================================
   主内容区域
   ======================================== */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem 2rem;
}

.view {
  display: none;
  animation: fadeIn 0.5s ease;
}

.view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   搜索区域
   ======================================== */
.search-section {
  margin-bottom: 1.25rem;
}

.search-box {
  position: relative;
  max-width: 400px;
  margin-bottom: 0.75rem;
}

.search-box input {
  width: 100%;
  padding: 0.6rem 2.75rem 0.6rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: var(--transition);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-card-hover);
  box-shadow: 0 0 0 4px rgba(201, 169, 98, 0.1);
}

.search-btn {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.search-btn svg {
  width: 16px;
  height: 16px;
  color: var(--primary-dark);
}

.search-btn:hover {
  background: var(--accent-light);
  transform: translateY(-50%) scale(1.05);
}

.filter-chips {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chip {
  padding: 0.3rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.chip:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.chip.active {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

/* ========================================
   旅程卡片网格
   ======================================== */
.trips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.trip-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  animation: slideUp 0.5s ease backwards;
}

.trip-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.trip-card-image {
  height: 120px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.trip-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.trip-card:hover .trip-card-image img {
  transform: scale(1.05);
}

.trip-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  opacity: 0.3;
}

.trip-card-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.2rem 0.5rem;
  background: rgba(13, 27, 33, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  font-size: 0.65rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.trip-card-content {
  padding: 0.75rem;
  position: relative;
}

.trip-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.trip-card-route {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-bottom: 0.35rem;
}

.trip-card-route .arrow {
  color: var(--accent);
}

.trip-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.7rem;
}

.trip-card-date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.trip-card-transport {
  background: rgba(201, 169, 98, 0.1);
  padding: 0.15rem 0.4rem;
  border-radius: 50px;
  font-size: 0.65rem;
  color: var(--accent-light);
}

.trip-card-rating {
  color: var(--accent);
}

/* 卡片标题行 */
.trip-card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.trip-card-title-row .trip-card-title {
  margin-bottom: 0;
  flex: 1;
  min-width: 0;
}

/* 卡片上传按钮 */
.trip-card-upload {
  flex-shrink: 0;
  padding: 0.2rem 0.5rem;
  background: rgba(201, 169, 98, 0.15);
  border: 1px dashed var(--accent);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--accent);
  transition: all 0.2s ease;
}

.trip-card-upload:hover {
  background: rgba(201, 169, 98, 0.3);
  border-style: solid;
}

.trip-card-upload:active {
  transform: scale(0.95);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   加载状态和空状态
   ======================================== */
.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: var(--text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.empty-state p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ========================================
   统计页面
   ======================================== */
.stats-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.stats-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.stat-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.stat-value {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.stats-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.chart-card h3 {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.chart-container {
  min-height: 120px;
}

.chart-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.chart-bar-label {
  width: 60px;
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: right;
  flex-shrink: 0;
}

.chart-bar-track {
  flex: 1;
  height: 16px;
  background: rgba(201, 169, 98, 0.1);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.chart-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
  border-radius: 8px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.5rem;
}

.chart-bar-value {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--primary-dark);
}

/* ========================================
   模态框
   ======================================== */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 420px;
  max-height: 85vh;
  background: var(--primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-y: auto;
  animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-detail {
  max-width: 560px;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

.modal-header h2 {
  font-size: 1rem;
  color: var(--text-primary);
}

.modal-close {
  width: 28px;
  height: 28px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 1rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

/* ========================================
   表单样式
   ======================================== */
.trip-form {
  padding: 1rem;
}

.form-group {
  margin-bottom: 0.75rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--text-primary);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0, 0, 0, 0.3);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a8c4d4' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

/* 自动补全 */
.autocomplete-wrapper {
  position: relative;
}

.autocomplete-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 200px;
  overflow-y: auto;
  background: var(--primary-dark);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 1000;
  display: none;
  box-shadow: var(--shadow);
}

.autocomplete-list.active {
  display: block;
}

.autocomplete-item {
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  border-bottom: 1px solid var(--border);
}

.autocomplete-item:last-child {
  border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.selected {
  background: var(--accent);
  color: var(--primary-dark);
}

.autocomplete-item .item-count {
  float: right;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.autocomplete-item:hover .item-count,
.autocomplete-item.selected .item-count {
  color: var(--primary);
}

/* 评分输入 */
.rating-input {
  display: flex;
  gap: 0.15rem;
}

.rating-input .star {
  font-size: 1.25rem;
  color: var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.rating-input .star:hover,
.rating-input .star.active {
  color: var(--accent);
  transform: scale(1.1);
}

/* 照片上传 */
.photo-upload {
  margin-bottom: 0.5rem;
}

.btn-upload {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  background: rgba(201, 169, 98, 0.1);
  border: 1px dashed var(--accent);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.75rem;
  color: var(--accent);
  cursor: pointer;
  transition: var(--transition);
}

.btn-upload:hover {
  background: rgba(201, 169, 98, 0.2);
}

.photo-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
  gap: 0.5rem;
}

.photo-preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.photo-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-preview-item .remove-photo {
  position: absolute;
  top: 0.15rem;
  right: 0.15rem;
  width: 18px;
  height: 18px;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.photo-preview-item:hover .remove-photo {
  opacity: 1;
}

/* 表单按钮 */
.form-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.btn-primary,
.btn-secondary {
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--primary-dark);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201, 169, 98, 0.3);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

/* ========================================
   详情页面
   ======================================== */
.detail-header {
  position: relative;
  height: 180px;
  margin: -1px;
  overflow: hidden;
}

.detail-header-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.detail-header-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.detail-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--primary) 0%, transparent 100%);
}

.detail-header-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
}

.detail-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.detail-route {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.detail-route .arrow {
  color: var(--accent);
}

.detail-body {
  padding: 1rem;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.detail-meta-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.detail-meta-item .icon {
  font-size: 0.9rem;
}

.detail-meta-item .value {
  color: var(--text-primary);
}

.detail-rating {
  color: var(--accent);
  font-size: 0.9rem;
}

.detail-section {
  margin-bottom: 1rem;
}

.detail-section h3 {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.detail-notes {
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  font-size: 0.85rem;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.detail-tag {
  padding: 0.25rem 0.5rem;
  background: rgba(201, 169, 98, 0.1);
  border-radius: 50px;
  font-size: 0.7rem;
  color: var(--accent);
}

.detail-photos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 0.5rem;
}

.detail-photo {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.detail-photo:hover {
  transform: scale(1.03);
}

.detail-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.btn-edit,
.btn-delete {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-edit {
  background: transparent;
  color: var(--text-secondary);
}

.btn-edit:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.btn-delete {
  background: transparent;
  color: #e74c3c;
  border-color: rgba(231, 76, 60, 0.3);
}

.btn-delete:hover {
  background: #e74c3c;
  color: #fff;
  border-color: #e74c3c;
}

/* ========================================
   Toast 提示
   ======================================== */
.toast {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 0.5rem 1rem;
  background: var(--primary-light);
  border: 1px solid var(--accent);
  border-radius: 50px;
  color: var(--text-primary);
  font-size: 0.8rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2000;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: #e74c3c;
  background: rgba(231, 76, 60, 0.2);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
  .navbar {
    padding: 0.5rem 1rem;
  }
  
  .nav-links {
    gap: 0.5rem;
  }
  
  .btn-add span {
    display: none;
  }
  
  .main-content {
    padding: 0.75rem;
  }
  
  .trips-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  
  .trip-card-image {
    height: 90px;
  }
  
  .trip-card-content {
    padding: 0.5rem;
  }
  
  .trip-card-title {
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
  }
  
  .trip-card-route {
    font-size: 0.65rem;
    margin-bottom: 0.25rem;
  }
  
  .trip-card-meta {
    font-size: 0.6rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  
  .modal-content {
    max-width: 95%;
    max-height: 90vh;
  }
  
  .modal-header {
    padding: 0.5rem 0.75rem;
  }
  
  .modal-header h2 {
    font-size: 0.9rem;
  }
  
  .trip-form {
    padding: 0.75rem;
  }
  
  .detail-header {
    height: 140px;
  }
  
  .detail-title {
    font-size: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }
  
  .stat-card {
    padding: 0.75rem 0.5rem;
  }
  
  .stat-icon {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
  }
  
  .stat-value {
    font-size: 1.25rem;
  }
  
  .stat-label {
    font-size: 0.65rem;
  }
  
  .stats-charts {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .brand-text {
    font-size: 1rem;
  }
  
  .nav-link {
    font-size: 0.7rem;
  }
  
  .search-box input {
    padding: 0.5rem 2.5rem 0.5rem 0.75rem;
    font-size: 0.75rem;
  }
  
  .login-container {
    padding: 1.5rem 1rem;
  }
  
  .login-header h1 {
    font-size: 1.5rem;
  }
}

/* ========================================
   登录页面
   ======================================== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.login-container {
  width: 100%;
  max-width: 320px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  animation: modalSlideIn 0.5s ease;
}

.login-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
  animation: float 3s ease-in-out infinite;
}

.login-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.login-form .form-group {
  margin-bottom: 0.75rem;
}

.login-form .form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.login-form .form-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: var(--transition);
}

.login-form .form-group input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0, 0, 0, 0.3);
}

.btn-login {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.25rem;
}

.login-divider {
  display: flex;
  align-items: center;
  margin: 1rem 0;
  color: var(--text-muted);
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-divider span {
  padding: 0 0.75rem;
  font-size: 0.75rem;
}

.btn-register {
  width: 100%;
  padding: 0.6rem;
}

/* 退出按钮 */
.btn-logout {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.6rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-logout:hover {
  background: rgba(231, 76, 60, 0.1);
  border-color: #e74c3c;
  color: #e74c3c;
}

.btn-logout svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

#currentUser {
  max-width: 60px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .login-container {
    padding: 2rem 1.5rem;
  }
  
  .btn-logout span {
    display: none;
  }
  
  .btn-logout {
    padding: 0.5rem;
  }
}

/* ========================================
   图片查看器
   ======================================== */
.image-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-viewer.active {
  display: flex;
  opacity: 1;
}

.image-viewer-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
}

.image-viewer-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.image-viewer-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.image-viewer-prev,
.image-viewer-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer-prev {
  left: 1rem;
}

.image-viewer-next {
  right: 1rem;
}

.image-viewer-prev:hover,
.image-viewer-next:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-50%) scale(1.1);
}

.image-viewer-prev:disabled,
.image-viewer-next:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.image-viewer-prev:disabled:hover,
.image-viewer-next:disabled:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-50%);
}

.image-viewer-container {
  max-width: 90%;
  max-height: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-viewer-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: imageZoomIn 0.3s ease;
}

@keyframes imageZoomIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.image-viewer-toolbar {
  position: absolute;
  bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  z-index: 10;
}

.image-viewer-counter {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
}

.image-viewer-download {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  color: var(--primary-dark);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.image-viewer-download:hover {
  background: var(--accent-dark);
  transform: scale(1.05);
}

.image-viewer-download svg {
  width: 18px;
  height: 18px;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .image-viewer-prev,
  .image-viewer-next {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }

  .image-viewer-prev {
    left: 0.5rem;
  }

  .image-viewer-next {
    right: 0.5rem;
  }

  .image-viewer-toolbar {
    bottom: 1.5rem;
    padding: 0.5rem 1rem;
    gap: 1rem;
  }

  .image-viewer-counter {
    font-size: 0.8rem;
  }

  .image-viewer-download {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }

  .image-viewer-download svg {
    width: 16px;
    height: 16px;
  }

  .image-viewer-container {
    max-width: 95%;
    max-height: 75%;
  }
}

/* 详情页照片点击样式 */
.detail-photo {
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.detail-photo:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.detail-photo:active {
  transform: scale(0.98);
}