/**
 * 心愿认领平台 - 公共样式
 */

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 14px;
  color: #333;
  background-color: #f5f5f5;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, li {
  list-style: none;
}

/* 布局容器 */
.container {
  max-width: 750px;
  margin: 0 auto;
  padding-bottom: 60px;
}

/* 顶部导航 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 50px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-title {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}

/* 底部导航 */
.footer-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: #fff;
  display: flex;
  justify-content: space-around;
  align-items: center;
  border-top: 1px solid #eee;
  z-index: 1000;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5px 0;
  color: #999;
  transition: all 0.3s;
}

.nav-item.active {
  color: #667eea;
}

.nav-item i {
  font-size: 22px;
  margin-bottom: 2px;
}

.nav-item span {
  font-size: 12px;
}

/* 轮播图 */
.swiper-container {
  width: 100%;
  height: 200px;
  margin-top: 50px;
  background: #f0f0f0;
}

.swiper-wrapper {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.swiper-pagination {
  bottom: 10px;
}

.swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  background: #fff;
  opacity: 0.5;
}

.swiper-pagination-bullet-active {
  opacity: 1;
  background: #667eea;
}

/* 卡片样式 */
.card {
  background: #fff;
  border-radius: 8px;
  padding: 15px;
  margin: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card-header {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.card-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin-right: 10px;
  object-fit: cover;
}

.card-info {
  flex: 1;
}

.card-name {
  font-size: 15px;
  font-weight: 600;
  color: #333;
}

.card-time {
  font-size: 12px;
  color: #999;
  margin-top: 2px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin-bottom: 8px;
  line-height: 1.4;
}

.card-content {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.card-images {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.card-image {
  width: 80px;
  height: 80px;
  border-radius: 4px;
  object-fit: cover;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 10px;
  border-top: 1px solid #f0f0f0;
}

.card-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  color: #fff;
  background: #667eea;
}

.card-tag.pending {
  background: #ff9800;
}

.card-tag.claimed {
  background: #4caf50;
}

.card-tag.completed {
  background: #9e9e9e;
}

.card-stats {
  display: flex;
  gap: 15px;
  color: #999;
  font-size: 12px;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border-radius: 20px;
  border: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: #f5f5f5;
  color: #666;
}

.btn-secondary:active {
  background: #e0e0e0;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* 表单样式 */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  color: #333;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-size: 14px;
  color: #333;
  transition: all 0.3s;
  outline: none;
}

.form-input:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select {
  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='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  padding-right: 40px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  font-size: 60px;
  color: #ddd;
  margin-bottom: 20px;
}

.empty-text {
  font-size: 14px;
  color: #999;
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 20px;
  color: #999;
}

.loading-spinner {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: #fff;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
  max-height: 80vh;
  overflow-y: auto;
  animation: slideUp 0.3s;
}

.modal-header {
  padding: 20px 20px 10px;
  text-align: center;
}

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

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 10px 20px 20px;
  display: flex;
  gap: 10px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

/* Tab切换 */
.tabs {
  display: flex;
  background: #fff;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 50px;
  z-index: 100;
}

.tab-item {
  flex: 1;
  text-align: center;
  padding: 15px 0;
  font-size: 15px;
  color: #666;
  position: relative;
  transition: all 0.3s;
}

.tab-item.active {
  color: #667eea;
  font-weight: 600;
}

.tab-item.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: #667eea;
  border-radius: 3px;
}

/* 列表项 */
.list-item {
  display: flex;
  align-items: center;
  padding: 15px;
  background: #fff;
  border-bottom: 1px solid #f0f0f0;
}

.list-item:active {
  background: #f9f9f9;
}

.list-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  font-size: 20px;
  color: #fff;
}

.list-content {
  flex: 1;
}

.list-title {
  font-size: 15px;
  color: #333;
  font-weight: 500;
}

.list-desc {
  font-size: 12px;
  color: #999;
  margin-top: 3px;
}

.list-arrow {
  color: #ccc;
  font-size: 18px;
}

/* 筛选栏 */
.filter-bar {
  display: flex;
  background: #fff;
  padding: 10px;
  gap: 10px;
  position: sticky;
  top: 50px;
  z-index: 100;
  border-bottom: 1px solid #f0f0f0;
}

.filter-select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  font-size: 13px;
  color: #666;
  background: #fff;
  outline: none;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  padding: 10px;
}

.stat-card {
  background: #fff;
  border-radius: 8px;
  padding: 15px;
  text-align: center;
}

.stat-number {
  font-size: 24px;
  font-weight: 600;
  color: #667eea;
}

.stat-label {
  font-size: 12px;
  color: #999;
  margin-top: 5px;
}

/* 响应式 */
@media (max-width: 750px) {
  .container {
    padding-bottom: 70px;
  }
  
  .header {
    max-width: 100%;
  }
  
  .footer-nav {
    max-width: 100%;
  }
}

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.p-10 { padding: 10px; }
.p-20 { padding: 20px; }
.flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { align-items: center; }
.hidden { display: none; }