/* 典籍书架 · 简介 · 徽章（阶段 4.1） */

.shanyi-library__head {
  margin-bottom: 1.25rem;
}

.shanyi-library__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.35rem;
}

.shanyi-library__lead {
  font-size: 0.88rem;
  color: var(--ink-2);
  line-height: 1.7;
  margin: 0;
}

.shanyi-library__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

@media (min-width: 720px) {
  .shanyi-library__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }
}

/* ── 书籍卡（带封面占位，重设计 R.4） ───────────────────── */

.shanyi-book-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  width: 100%;
  padding: 0;
  text-align: left;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-card);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.shanyi-book-card:hover {
  border-color: var(--gold);
  box-shadow: 0 2px 8px rgba(26, 20, 16, 0.07);
}

.shanyi-book-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* 封面占位块 */
.shanyi-book-card__cover {
  aspect-ratio: 3 / 4;
  width: 100%;
  background: linear-gradient(145deg, var(--paper-3) 0%, var(--paper-2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.shanyi-book-card__cover-char {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  color: var(--ink-3);
  line-height: 1;
  user-select: none;
}

/* 信息区 */
.shanyi-book-card__info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.65rem 0.85rem 0.75rem;
}

.shanyi-book-card__title {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
}

.shanyi-book-card__meta {
  font-size: 0.75rem;
  color: var(--ink-2);
  line-height: 1.5;
}

.shanyi-badge {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  line-height: 1.4;
  align-self: flex-start;
}

.shanyi-badge--metadata_only {
  color: var(--ink-2);
  background: var(--paper-3);
  border: 1px solid var(--paper-3);
}

.shanyi-badge--ai_ready {
  color: #6b4e0f;
  background: linear-gradient(135deg, #f5e6b8 0%, #e8c96a 100%);
  border: 1px solid var(--gold);
}

.shanyi-library__loading,
.shanyi-library__error {
  font-size: 0.88rem;
  color: var(--ink-2);
  padding: 1rem 0;
}

.shanyi-library__error {
  color: var(--accent);
}

.shanyi-intro {
  margin-top: 0;
  animation: shanyiIntroSlideIn 0.28s ease-out;
}

.shanyi-intro[hidden] {
  display: none !important;
}

@keyframes shanyiIntroSlideIn {
  from {
    opacity: 0;
    transform: translateY(0.65rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.shanyi-intro__back {
  margin-top: 1.15rem;
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
  font-family: var(--font-body);
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-btn);
  cursor: pointer;
}

.shanyi-intro__back:hover {
  border-color: var(--gold);
  color: var(--ink);
}

.shanyi-intro__back:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.shanyi-reader-placeholder {
  margin-top: 0.5rem;
  padding: 1.25rem 1.35rem;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-card);
  animation: shanyiIntroSlideIn 0.28s ease-out;
}

.shanyi-reader-placeholder[hidden] {
  display: none !important;
}

.shanyi-reader-placeholder__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.shanyi-reader-placeholder__note {
  font-size: 0.88rem;
  color: var(--ink-2);
  line-height: 1.75;
  margin: 0;
}

/* 典籍阅读器（阶段 4.4） */

.shanyi-reader[hidden] {
  display: none !important;
}

.shanyi-reader {
  animation: shanyiIntroSlideIn 0.28s ease-out;
}

.shanyi-reader__head {
  margin-bottom: 1rem;
}

.shanyi-reader__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0.65rem 0 0.75rem;
  line-height: 1.45;
}

.shanyi-reader__back {
  margin-top: 0;
}

.shanyi-reader__select-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shanyi-reader__select {
  display: block;
  width: 100%;
  max-width: 100%;
  margin-bottom: 0.85rem;
  padding: 0.55rem 0.75rem;
  font-size: 0.88rem;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-btn);
}

@media (min-width: 840px) {
  .shanyi-reader__select {
    display: none;
  }
}

.shanyi-reader__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}

@media (min-width: 840px) {
  .shanyi-reader__layout {
    grid-template-columns: minmax(9.5rem, 11.5rem) minmax(0, 1fr);
    gap: 1.25rem;
  }
}

.shanyi-reader__content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

@media (min-width: 1024px) {
  .shanyi-reader__content {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
  }

  .shanyi-reader__main {
    flex: 1 1 auto;
    min-width: 0;
  }

  .shanyi-reader__clips {
    flex: 0 0 min(16rem, 32vw);
  }
}

.shanyi-reader__nav {
  display: none;
  max-height: min(70vh, 36rem);
  overflow: auto;
  padding: 0.65rem 0.75rem;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-card);
}

@media (min-width: 840px) {
  .shanyi-reader__nav {
    display: block;
  }
}

.shanyi-reader__vol-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--ink-2);
  margin: 0.75rem 0 0.35rem;
}

.shanyi-reader__vol-title:first-child {
  margin-top: 0;
}

.shanyi-reader__chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.shanyi-reader__chapter-btn {
  display: block;
  width: 100%;
  padding: 0.4rem 0.35rem;
  text-align: left;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--ink);
  background: transparent;
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
}

.shanyi-reader__chapter-btn:hover {
  background: var(--paper-3);
}

.shanyi-reader__chapter-btn.is-active,
.shanyi-reader__chapter-btn[aria-current="true"] {
  color: var(--accent);
  font-weight: 600;
  background: rgba(184, 134, 11, 0.08);
}

.shanyi-reader__chapter-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}

.shanyi-reader__main {
  min-width: 0;
}

.shanyi-reader__summary {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--paper-2);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}

.shanyi-reader__summary[hidden] {
  display: none !important;
}

.shanyi-reader__body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.shanyi-reader__para {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: start;
  padding: 0.95rem 1rem;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-card);
}

.shanyi-reader__para-text {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink);
  white-space: normal;
  word-break: break-word;
}

.shanyi-reader__clip-btn {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  padding: 0;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--accent);
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.shanyi-reader__clip-btn:hover {
  border-color: var(--gold);
  background: rgba(184, 134, 11, 0.06);
}

.shanyi-reader__para.is-clipped {
  border-color: var(--gold);
  box-shadow: inset 0 0 0 1px rgba(184, 134, 11, 0.15);
}

.shanyi-reader__clip-btn.is-clipped {
  color: #fff;
  background: var(--gold);
  border-color: var(--gold);
}

.shanyi-reader__clips[hidden] {
  display: none !important;
}

.shanyi-reader__clips {
  padding: 0.85rem 0.95rem;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-card);
}

.shanyi-reader__clips-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.shanyi-reader__clips-title {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  font-weight: 600;
  margin: 0;
  color: var(--ink);
}

.shanyi-reader__clips-count {
  font-size: 0.75rem;
  color: var(--ink-2);
}

.shanyi-reader__clips-list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  max-height: min(40vh, 18rem);
  overflow: auto;
}

.shanyi-reader__clip-item {
  position: relative;
  padding: 0.55rem 1.75rem 0.55rem 0.65rem;
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-btn);
}

.shanyi-reader__clip-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin-bottom: 0.25rem;
}

.shanyi-reader__clip-id {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
}

.shanyi-reader__clip-book {
  font-size: 0.72rem;
  color: var(--ink-2);
}

.shanyi-reader__clip-preview {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink);
}

.shanyi-reader__clip-remove {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  width: 1.35rem;
  height: 1.35rem;
  padding: 0;
  font-size: 1rem;
  line-height: 1;
  color: var(--ink-2);
  background: transparent;
  border: none;
  border-radius: 999px;
  cursor: pointer;
}

.shanyi-reader__clip-remove:hover {
  color: var(--accent);
  background: var(--paper-3);
}

.shanyi-reader__clips-empty {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--ink-2);
}

.shanyi-reader__clips-empty[hidden] {
  display: none !important;
}

.shanyi-reader__submit-btn {
  width: 100%;
  padding: 0.55rem 0.85rem;
  font-size: 0.88rem;
  font-family: var(--font-body);
  color: var(--ink);
  background: linear-gradient(135deg, #f5e6b8 0%, #e8c96a 100%);
  border: 1px solid var(--gold);
  border-radius: var(--radius-btn);
  cursor: pointer;
}

.shanyi-reader__submit-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.shanyi-reader__submit-btn:not(:disabled):hover {
  filter: brightness(1.03);
}

.shanyi-reader__submit-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.shanyi-reader__session-result {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--paper-3);
}

.shanyi-reader__session-result[hidden] {
  display: none !important;
}

.shanyi-reader__session-summary {
  margin: 0 0 0.5rem;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--ink);
  white-space: pre-wrap;
}

.shanyi-reader__session-balance {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-2);
}

.shanyi-reader__session-error {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--accent);
}

.shanyi-reader__session-error[hidden] {
  display: none !important;
}

.shanyi-reader__session-error a {
  color: var(--accent);
  text-decoration: underline;
}

.shanyi-reader__status,
.shanyi-reader__error {
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 0;
  padding: 0.5rem 0;
}

.shanyi-reader__error {
  color: var(--accent);
}

/* ── 页面 hero + 横幅轮播（重设计 R.4） ──────────────────── */

.page-hero {
  padding: 0.75rem var(--space-md) 0;
  margin-left:  calc(-1 * var(--space-md));
  margin-right: calc(-1 * var(--space-md));
  padding-left:  var(--space-md);
  padding-right: var(--space-md);
  width: calc(100% + 2 * var(--space-md));
  max-width: none;
  box-sizing: border-box;
  background: transparent;
}

.page-carousel {
  position: relative;
  height: 180px;
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: 14px;
  overflow: hidden;
  outline: none;
  box-shadow: 0 2px 10px rgba(26, 20, 16, 0.07);
}

.page-hero--compact .page-carousel {
  height: 120px;
}

.page-carousel:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* track 去掉固定高度限制，让 deco 撑满 */
.page-carousel__track {
  position: relative;
  height: calc(100% - 1.8rem);
}

/* 幻灯片：改为双栏 flex */
.page-carousel__slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: stretch;
  opacity: 0;
  transition: opacity 280ms ease;
  pointer-events: none;
}

.page-carousel__slide--active {
  opacity: 1;
  pointer-events: auto;
}

/* 左侧文案区 */
.page-carousel__slide-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem 0.85rem 0.65rem 1.2rem;
  border-left: 3px solid var(--gold);
}

.page-carousel__slide[data-tag="养生"] .page-carousel__slide-body {
  border-left-color: var(--accent-2);
}
.page-carousel__slide[data-tag="典籍"] .page-carousel__slide-body {
  border-left-color: var(--gold);
}
.page-carousel__slide[data-tag="工具"] .page-carousel__slide-body {
  border-left-color: var(--ink-3);
}
.page-carousel__slide[data-tag="FAQ"] .page-carousel__slide-body {
  border-left-color: var(--paper-3);
}

/* 右侧装饰字块 */
.page-carousel__slide-deco {
  width: 96px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--paper);
  background: var(--ink-3);
  letter-spacing: 0.04em;
  user-select: none;
}

.page-carousel__slide[data-tag="养生"] .page-carousel__slide-deco {
  background: var(--accent-2);
}
.page-carousel__slide[data-tag="典籍"] .page-carousel__slide-deco {
  background: var(--gold);
  color: var(--ink);
}
.page-carousel__slide[data-tag="工具"] .page-carousel__slide-deco {
  background: var(--ink-3);
}
.page-carousel__slide[data-tag="FAQ"] .page-carousel__slide-deco {
  background: var(--paper-3);
  color: var(--ink-2);
}

.page-carousel__tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 0.28rem;
}

.page-carousel__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin: 0 0 0.3rem;
}

.page-carousel__excerpt {
  font-size: 0.82rem;
  color: var(--ink-2);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

/* 点指示器 */
.page-carousel__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.45rem;
  display: flex;
  justify-content: center;
  gap: 0.45rem;
}

.page-carousel__dot {
  width: 0.42rem;
  height: 0.42rem;
  padding: 0;
  border: 1px solid var(--paper-3);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.page-carousel__dot:hover,
.page-carousel__dot:focus-visible {
  border-color: var(--gold);
}

.page-carousel__dot:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-carousel__dot--active {
  background: var(--gold);
  border-color: var(--gold);
}

@media (prefers-reduced-motion: reduce) {
  .page-carousel__slide {
    transition: none;
  }
}

/* 窄屏：装饰字块缩小 */
@media (max-width: 400px) {
  .page-carousel__slide-deco {
    width: 72px;
    font-size: 2.2rem;
  }
}

/* 书斋首页 · 五卡书单（阶段 5.2） */

.shanyi-home {
  margin-top: 0.25rem;
}

.five-grid--full {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.65rem;
}

@media (max-width: 720px) {
  .five-grid--full {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .five-grid--full {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 重设计 R.4 */

/* ── 五卡分类条 — 单行横排（重设计 R.4） ──────────────────── */

/* 书斋和工坊共用：单行不换行，手机端横滑 */
#shanyiHomeSelector.five-grid--full,
#workshopSelector.five-grid--full {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  gap: 0.55rem;
  padding-bottom: 2px; /* 防阴影裁剪 */
}

#shanyiHomeSelector.five-grid--full::-webkit-scrollbar,
#workshopSelector.five-grid--full::-webkit-scrollbar {
  display: none;
}

#shanyiHomeSelector.five-grid--full .tech-card,
#workshopSelector.five-grid--full .tech-card {
  flex: 0 0 calc(20% - 0.44rem);
  min-width: 58px;
}

/* 各五术键激活色（覆盖 styles.css 统一红） */
.tech-card[data-wushu-key="shan"].active {
  background: #4e7a3c;
  border-color: #4e7a3c;
  color: var(--paper);
}
.tech-card[data-wushu-key="yi"].active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.tech-card[data-wushu-key="ming"].active {
  background: #6b4f9a;
  border-color: #6b4f9a;
  color: var(--paper);
}
.tech-card[data-wushu-key="xiang"].active {
  background: #3d6080;
  border-color: #3d6080;
  color: var(--paper);
}
.tech-card[data-wushu-key="bu"].active {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: var(--paper);
}

.shanyi-home__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 1rem 0 0.75rem;
}

@media (min-width: 720px) {
  .shanyi-home__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }
}

.shanyi-home__loading,
.shanyi-home__empty {
  grid-column: 1 / -1;
  font-size: 0.88rem;
  color: var(--ink-2);
  line-height: 1.7;
  margin: 0;
  padding: 0.5rem 0;
}

.shanyi-home__disclaimer {
  font-size: 0.78rem;
  color: var(--ink-3);
  line-height: 1.65;
  margin: 0.5rem 0 0;
}

.shanyi-home__disclaimer a {
  color: var(--accent);
  text-decoration: underline;
}