/**
 * Soul创业实验 - 目录页样式
 * 1:1还原Web版本UI
 */

.page {
  min-height: 100vh;
  background: #000000;
  padding-bottom: 200rpx;
}

/* ===== 自定义导航栏 ===== */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(40rpx);
  -webkit-backdrop-filter: blur(40rpx);
  border-bottom: 1rpx solid rgba(255, 255, 255, 0.05);
}

.nav-content {
  height: 88rpx;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-title {
  font-size: 36rpx;
  font-weight: 600;
}

.brand-color {
  color: #00CED1;
}

.nav-placeholder {
  width: 100%;
}

/* ===== 书籍信息卡 ===== */
.book-info-card {
  display: flex;
  align-items: center;
  gap: 24rpx;
  margin: 32rpx;
  padding: 32rpx;
}

.card-gradient {
  background: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);
  border-radius: 32rpx;
  border: 2rpx solid rgba(0, 206, 209, 0.2);
}

.book-icon {
  width: 96rpx;
  height: 96rpx;
  border-radius: 24rpx;
  background: linear-gradient(135deg, #00CED1 0%, #20B2AA 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.book-icon-inner {
  font-size: 48rpx;
}

.book-info {
  flex: 1;
  min-width: 0;
}

.book-title {
  font-size: 32rpx;
  font-weight: 600;
  color: #ffffff;
  display: block;
  margin-bottom: 4rpx;
}

.book-subtitle {
  font-size: 22rpx;
  color: rgba(255, 255, 255, 0.4);
}

.book-count {
  text-align: right;
}

.count-value {
  font-size: 40rpx;
  font-weight: 700;
  display: block;
}

.count-label {
  font-size: 20rpx;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== 目录内容 ===== */
.chapters-content {
  padding: 0 32rpx;
  width: 100%;
  box-sizing: border-box;
}

/* ===== 章节项 ===== */
.chapter-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24rpx;
  background: #1c1c1e;
  border-radius: 24rpx;
  border: 2rpx solid rgba(255, 255, 255, 0.05);
  margin-bottom: 24rpx;
}

.chapter-item:active {
  background: #2c2c2e;
}

.item-left {
  display: flex;
  align-items: center;
  gap: 24rpx;
  flex: 1;
  min-width: 0;
}

.item-icon {
  width: 64rpx;
  height: 64rpx;
  border-radius: 16rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32rpx;
  flex-shrink: 0;
}

.icon-brand {
  background: rgba(0, 206, 209, 0.2);
}

.item-title {
  font-size: 28rpx;
  font-weight: 500;
  color: #ffffff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-right {
  display: flex;
  align-items: center;
  gap: 16rpx;
  flex-shrink: 0;
}

.item-arrow {
  font-size: 32rpx;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== 标签 ===== */
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22rpx;
  padding: 6rpx 16rpx;
  min-width: 80rpx;
  border-radius: 8rpx;
  box-sizing: border-box;
  text-align: center;
}

.tag-free {
  background: rgba(0, 206, 209, 0.1);
  color: #00CED1;
}

.text-brand {
  color: #00CED1;
}

.text-muted {
  color: rgba(255, 255, 255, 0.4);
}

.text-xs {
  font-size: 22rpx;
}

/* ===== 篇章列表 ===== */
.part-list {
  margin-bottom: 24rpx;
}

.part-item {
  margin-bottom: 24rpx;
}

.part-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24rpx;
  background: #1c1c1e;
  border-radius: 24rpx;
  border: 2rpx solid rgba(255, 255, 255, 0.05);
}

.part-header:active {
  background: #2c2c2e;
}

.part-left {
  display: flex;
  align-items: center;
  gap: 24rpx;
}

.part-icon {
  width: 64rpx;
  height: 64rpx;
  border-radius: 16rpx;
  background: linear-gradient(135deg, #00CED1 0%, #20B2AA 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28rpx;
  font-weight: 700;
  color: #ffffff;
  flex-shrink: 0;
}

.part-info {
  display: flex;
  flex-direction: column;
}

.part-title {
  font-size: 28rpx;
  font-weight: 600;
  color: #ffffff;
}

.part-subtitle {
  font-size: 20rpx;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4rpx;
}

.part-right {
  display: flex;
  align-items: center;
  gap: 16rpx;
}

.part-count {
  font-size: 22rpx;
  color: rgba(255, 255, 255, 0.4);
}

.part-arrow {
  font-size: 32rpx;
  color: rgba(255, 255, 255, 0.4);
  transition: transform 0.3s ease;
}

.arrow-down {
  transform: rotate(90deg);
}

/* ===== 章节组 ===== */
.chapters-list {
  margin-top: 16rpx;
  margin-left: 16rpx;
}

.chapter-group {
  background: rgba(28, 28, 30, 0.5);
  border-radius: 16rpx;
  border: 2rpx solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  margin-bottom: 8rpx;
}

.chapter-header {
  padding: 16rpx 24rpx;
  font-size: 24rpx;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  border-bottom: 1rpx solid rgba(255, 255, 255, 0.05);
}

.section-list {
  /* 小节列表 */
}

.section-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 20rpx 24rpx;
  border-bottom: 1rpx solid rgba(255, 255, 255, 0.05);
}

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

.section-item:active {
  background: rgba(255, 255, 255, 0.05);
}

.section-left {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16rpx;
  flex: 1;
  min-width: 0;
}

/* 小节锁图标 */
.section-lock {
  width: 32rpx;
  min-width: 32rpx;
  font-size: 24rpx;
  text-align: center;
  flex-shrink: 0;
}

.lock-open {
  color: #00CED1;
}

.lock-closed {
  color: rgba(255, 255, 255, 0.3);
}

/* 小节标题 */
.section-title {
  font-size: 26rpx;
  color: #ffffff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

/* 小节价格 */
.section-price {
  font-size: 24rpx;
  color: rgba(255, 255, 255, 0.5);
}

/* 已购标签 */
.tag-purchased {
  background: rgba(0, 206, 209, 0.15);
  color: #00CED1;
}

.section-right {
  display: flex;
  align-items: center;
  gap: 16rpx;
  flex-shrink: 0;
  margin-left: 16rpx;
}

.section-arrow {
  font-size: 28rpx;
  color: rgba(255, 255, 255, 0.3);
}

/* ===== 附录 ===== */
.card {
  background: #1c1c1e;
  border-radius: 24rpx;
  border: 2rpx solid rgba(255, 255, 255, 0.05);
  margin: 0 0 24rpx 0;
  width: 100%;
  box-sizing: border-box;
}

.appendix-card {
  padding: 24rpx;
  width: 100%;
  box-sizing: border-box;
  margin: 0 0 24rpx 0;
}

.appendix-title {
  font-size: 24rpx;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  display: block;
  margin-bottom: 16rpx;
}

.appendix-list {
  /* 附录列表 */
}

.appendix-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16rpx 0;
  border-bottom: 1rpx solid rgba(255, 255, 255, 0.05);
}

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

.appendix-item:active {
  opacity: 0.7;
}

.appendix-text {
  font-size: 24rpx;
  color: rgba(255, 255, 255, 0.8);
}

.appendix-arrow {
  font-size: 28rpx;
  color: rgba(255, 255, 255, 0.3);
}

/* ===== 底部留白 ===== */
.bottom-space {
  height: 40rpx;
}
