/* ══════════════════════════════════════════════════════════════
   随笔日志 · 横排古风阅读样式
   配色沿用 styles.css 的设计变量（宣纸暖白 / 川红 / 金 / 墨）
   ══════════════════════════════════════════════════════════════ */

/* ── 页面容器 ── */
.journal-content {
  min-height: 100vh;
  padding: 110px 1.5rem 100px;
}

/* ── 卷首题署 ── */
.journal-masthead {
  text-align: center;
  margin-bottom: 2.8rem;
}

.journal-seal-top {
  display: inline-block;
  width: 2.6rem;
  height: 2.6rem;
  line-height: 2.6rem;
  margin-bottom: 1rem;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: #FAF7F2;
  background: var(--color-sichuan-red);
  border-radius: 5px;
  box-shadow: 0 1px 5px rgba(139, 74, 60, 0.4);
  letter-spacing: 0;
  user-select: none;
}

.journal-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--color-ink);
  /* letter-spacing 会在右侧多出一格，用负 margin 视觉居中 */
  margin-right: -0.32em;
}

.journal-rule {
  width: 92px;
  height: 0;
  margin: 1.1rem auto 0;
  border-top: 3px double var(--color-gold);
}

.journal-subtitle {
  margin-top: 1rem;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.22em;
  color: var(--color-ink-faint);
  font-style: italic;
}

/* ── 书卷主体（一函宣纸） ── */
.journal-scroll {
  max-width: 1180px;
  margin: 0 auto;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-sepia);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 3.6rem clamp(1.6rem, 5vw, 4rem);
  position: relative;
  transition: var(--theme-transition);
}

/* ── 双栏阅读器 ── */
.journal-reader {
  display: grid;
  grid-template-columns: minmax(200px, 235px) minmax(0, 1fr);
  gap: clamp(1.6rem, 3.4vw, 2.8rem);
  align-items: start;
}

.journal-index {
  position: sticky;
  top: 1.2rem;
  max-height: calc(100vh - 2.4rem);
  overflow-y: auto;
  padding-right: 0.35rem;
}

.journal-index-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--color-sepia);
  font-family: var(--font-serif);
  color: var(--color-ink);
  letter-spacing: 0.12em;
}

.journal-index-heading small {
  font-size: 0.76rem;
  color: var(--color-ink-faint);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.journal-index-card {
  display: block;
  position: relative;
  width: 100%;
  margin: 0 0 0.75rem;
  padding: 0.85rem 0.85rem 0.9rem;
  border: 1px solid rgba(139, 74, 60, 0.22);
  border-radius: 8px;
  background: rgba(250, 247, 242, 0.58);
  color: var(--color-ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.journal-index-card:hover,
.journal-index-card:focus-visible {
  border-color: var(--color-gold);
  box-shadow: 0 6px 16px rgba(59, 42, 34, 0.10);
  outline: none;
}

.journal-index-card.is-active {
  border-color: var(--color-sichuan-red);
  background: rgba(139, 74, 60, 0.08);
  box-shadow: inset 3px 0 0 var(--color-sichuan-red);
}

.journal-index-title,
.journal-index-meta,
.journal-index-summary {
  display: block;
}

.journal-index-seal {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 1.55rem;
  height: 1.55rem;
  line-height: 1.55rem;
  border-radius: 4px;
  background: var(--color-sichuan-red);
  color: #FAF7F2;
  box-shadow: 0 1px 4px rgba(139, 74, 60, 0.32);
  font-family: var(--font-serif);
  font-size: 0.75rem;
  text-align: center;
  letter-spacing: 0;
}

.journal-index-title {
  font-family: var(--font-serif);
  padding-right: 2rem;
  font-size: 0.94rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.journal-index-meta {
  margin-top: 0.35rem;
  font-family: var(--font-serif);
  font-size: 0.73rem;
  color: var(--color-ink-faint);
  line-height: 1.5;
  letter-spacing: 0.05em;
}

.journal-index-summary {
  margin-top: 0.55rem;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  color: var(--color-ink-muted);
  line-height: 1.6;
  letter-spacing: 0.02em;
}

html.dark .journal-index-card {
  border-color: rgba(196, 149, 90, 0.32);
  background: rgba(46, 38, 25, 0.96);
  color: var(--color-ink);
}

html.dark .journal-index-card:hover,
html.dark .journal-index-card:focus-visible {
  border-color: var(--color-gold);
  background: rgba(55, 45, 30, 0.98);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.30);
}

html.dark .journal-index-card.is-active {
  border-color: var(--color-sichuan-red);
  background: rgba(83, 53, 40, 0.72);
}

html.dark .journal-index-meta {
  color: #C5A782;
}

html.dark .journal-index-summary {
  color: #D4C4A8;
}

.journal-pane {
  min-width: 0;
}

.journal-pane .essay {
  display: none;
}

.journal-pane .essay.is-active {
  display: block;
}

.journal-pane .essay + .essay {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.journal-pane .essay + .essay::before {
  display: none;
}

/* 版框左侧朱栏（古籍版心意象） */
.journal-scroll::before {
  content: '';
  position: absolute;
  top: 1.4rem;
  bottom: 1.4rem;
  left: clamp(0.7rem, 2.4vw, 1.7rem);
  width: 0;
  border-left: 1px solid rgba(139, 74, 60, 0.28);
  box-shadow: 3px 0 0 -1px rgba(196, 149, 90, 0.30);
}

/* ── 单篇 ── */
.essay {
  position: relative;
}
.essay::after {
  content: '';
  display: block;
  clear: both;
}

/* 篇与篇之间的鱼尾花纹分隔 */
.essay + .essay {
  margin-top: 3.4rem;
  padding-top: 3.4rem;
  border-top: 1px solid var(--color-sepia);
}
.essay + .essay::before {
  content: '❖';
  position: absolute;
  top: -0.95rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 0.7rem;
  background: var(--color-bg-alt);
  color: var(--color-gold);
  font-size: 0.95rem;
  line-height: 1;
}

/* ── 篇首 ── */
.essay-head {
  text-align: center;
  margin-bottom: 1.8rem;
}

.essay-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.2vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-ink);
  margin-right: -0.14em;
}

.essay-meta {
  margin-top: 0.7rem;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: var(--color-ink-faint);
}
.essay-meta .sep {
  color: var(--color-sichuan-red);
  margin: 0 0.5em;
  opacity: 0.8;
}

/* ── 正文 ── */
.essay-body p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 2.05;
  color: var(--color-ink);
  text-indent: 2em;          /* 首行缩进两字 */
  text-align: justify;
  letter-spacing: 0.02em;
  margin-bottom: 1.1rem;
}
.essay-body p:last-child {
  margin-bottom: 0;
}

/* 首段首字下沉（朱色） */
.essay-body > p:first-of-type {
  text-indent: 0;
}
.essay-body > p:first-of-type::first-letter {
  float: left;
  font-size: 3.1em;
  line-height: 0.86;
  margin: 0.04em 0.14em 0 0;
  color: var(--color-sichuan-red);
  font-weight: 700;
}

/* ── 正文插图（居中 · 可放大 · 下载原图） ── */
.essay-figure {
  margin: 2rem auto;
  max-width: 100%;
  text-align: center;
}

.essay-figure .gallery-image-wrapper {
  display: block;
  border: 1px solid var(--color-sepia);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--color-bg-dark);
  cursor: zoom-in;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.essay-figure .gallery-image-wrapper:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-gold);
}

.essay-figure figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--color-ink-faint);
}
.essay-figure figcaption::before {
  content: '—\00a0';
  color: var(--color-sichuan-red);
  opacity: 0.7;
}
.essay-figure figcaption::after {
  content: '\00a0—';
  color: var(--color-sichuan-red);
  opacity: 0.7;
}

/* 窄屏忽略指定宽度，铺满阅读栏，避免插图过小 */
@media (max-width: 600px) {
  .essay-figure { width: auto !important; }
}

/* ── 篇末落款朱印 ── */
.essay-seal {
  float: right;
  margin-top: 1.4rem;
  width: 2.5rem;
  height: 2.5rem;
  line-height: 2.5rem;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: #FAF7F2;
  background: var(--color-sichuan-red);
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(139, 74, 60, 0.40);
  user-select: none;
}

/* ── 响应式 ── */
@media (max-width: 860px) {
  .journal-reader {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .journal-index {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .journal-index-card {
    margin-bottom: 0.65rem;
  }
}

@media (max-width: 600px) {
  .journal-content { padding: 96px 0.9rem 80px; }
  .journal-scroll { padding: 2.6rem 1.4rem; }
  .journal-scroll::before { display: none; }
  .essay-body p { font-size: 1rem; line-height: 1.95; }
}