/* ============================================================
   内页 · 书架、阅读、碎片、我们、抽屉
   ============================================================ */

.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 5vw, 3rem);
}

/* 页首一句轻轻的话 */
.page-intro {
  margin: 3.5rem 0 3rem;
  text-align: center;
}
.page-intro h2 {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 600;
  letter-spacing: .12em;
}
.page-intro p {
  margin-top: .7rem;
  color: var(--ink-faint);
  font-size: .9rem;
  letter-spacing: .06em;
}

/* ============================================================
   书架页 · 故事
   ============================================================ */
.bigshelf {
  margin: 2rem auto 0;
  max-width: 56rem;
}
.bigshelf-row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(6px, 1.4vw, 14px);
  padding: 0 clamp(1rem, 4vw, 3rem);
  border-bottom: 10px solid var(--wood);
  margin-bottom: clamp(2.4rem, 6vh, 4rem);
  transition: border-color 1.2s ease;
}
.bigshelf .book {
  position: relative;
  width: clamp(36px, 5.6vw, 48px);
  height: calc(var(--h, 150) * 1px);
}
.bigshelf .book .bk {
  position: absolute;
  inset: 0;
  display: block;
  border-radius: 5px 5px 1px 1px;
  background: linear-gradient(to right, var(--c, #9a938a) 0%, color-mix(in srgb, var(--c, #9a938a) 82%, #000) 100%);
  box-shadow: inset -3px 0 5px rgba(0,0,0,.18), 2px 0 2px rgba(0,0,0,.07);
  transition: transform .45s cubic-bezier(.34,1.56,.64,1), box-shadow .45s ease;
  transform-origin: bottom center;
}
.bigshelf .book .bk::before { /* 书脊顶上的一道装饰 */
  content: "";
  position: absolute;
  left: 0; right: 0; top: 12px;
  height: 5px;
  background: rgba(255, 248, 238, .35);
}
.bigshelf .book .spine {
  display: block;
  writing-mode: vertical-rl;
  letter-spacing: .18em;
  color: rgba(255, 248, 238, .92);
  margin: 0 auto;
  white-space: nowrap;
  overflow: hidden;
  max-height: 100%;
  font-size: clamp(12px, 1.6vw, 14px);
  padding: 24px 0 12px;
}
.bigshelf .book:hover .bk {
  transform: translateY(-14px) rotate(-1.2deg);
  box-shadow: inset -3px 0 5px rgba(0,0,0,.18), 0 18px 24px -14px var(--shadow);
}
.bigshelf .book.lean .bk { transform: rotate(-7deg); }
.bigshelf .book.lean:hover .bk { transform: rotate(-7deg) translateY(-12px); }
/* ============================================================
   阅读页 · 一页纸
   ============================================================ */
.reader {
  max-width: 37rem;
  margin: 2.5rem auto 0;
  background: var(--paper);
  border-radius: 4px;
  box-shadow: var(--card-shadow);
  padding: clamp(2.2rem, 7vw, 4.5rem) clamp(1.6rem, 7vw, 4rem) clamp(3rem, 8vw, 5rem);
  position: relative;
  transition: background 1.2s ease;
  animation: pageIn .9s ease both;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.reader::before, .reader::after { /* 下面还压着两页 */
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper);
  border-radius: 4px;
  z-index: -1;
  transition: background 1.2s ease;
}
.reader::before { transform: rotate(-1.1deg); box-shadow: var(--card-shadow); }
.reader::after { transform: rotate(.8deg); }

.reader-head { text-align: center; margin-bottom: 3.2rem; }
.reader-head h2 {
  font-size: clamp(1.6rem, 4.5vw, 2.1rem);
  letter-spacing: .18em;
  font-weight: 600;
}
.reader-head .epigraph {
  margin-top: 1.1rem;
  color: var(--ink-soft);
  font-size: .95rem;
}
.reader-head .meta {
  margin-top: 1.2rem;
  color: var(--ink-faint);
  font-size: .8rem;
  letter-spacing: .12em;
}
.reader-head .rule {
  width: 3.5rem;
  height: 1px;
  background: var(--pink-deep);
  opacity: .55;
  margin: 1.8rem auto 0;
}

.chapter { margin: 3rem 0; }
.chapter h3 {
  text-align: center;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--ink-soft);
  margin-bottom: 1.8rem;
}
.chapter p {
  text-indent: 2em;
  margin: .9em 0;
  font-size: clamp(.98rem, 2.4vw, 1.06rem);
}
.chapter:first-of-type p:first-of-type::first-letter {
  font-size: 2.1em;
  line-height: 1;
  padding-right: .08em;
  color: var(--pink-deep);
}

/* 读完以后：没有上一篇下一篇 */
.afterword {
  margin-top: 4.5rem;
  text-align: center;
}
.afterword .dots {
  color: var(--ink-faint);
  letter-spacing: 1.2em;
  text-indent: 1.2em;
  display: block;
  margin-bottom: 2.2rem;
}
.next-one {
  display: inline-block;
  font-size: 1.05rem;
  letter-spacing: .12em;
  color: var(--ink);
  padding: .5rem .2rem;
  border-bottom: 1px solid var(--pink-deep);
  transition: letter-spacing .5s ease, color .4s ease;
  cursor: pointer;
}
.next-one:hover { letter-spacing: .22em; color: var(--pink-deep); }
.afterword .back-shelf {
  display: block;
  margin-top: 2.6rem;
  font-size: .82rem;
  color: var(--ink-faint);
  transition: color .4s ease;
}
.afterword .back-shelf:hover { color: var(--ink); }

/* 阅读页纸上的书签带 */
.reader .ribbon {
  position: absolute;
  top: -2px;
  right: clamp(1.6rem, 6vw, 3.2rem);
  width: 22px;
  height: 62px;
  background: var(--pink-deep);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 80%, 0 100%);
  opacity: .85;
  border-radius: 2px 2px 0 0;
}

/* ============================================================
   碎片 · 一桌子纸片
   ============================================================ */
/* 碎片桌：用 flex 分列（columns 布局里悬停 transform 会触发渲染 bug，卡片会消失） */
.board {
  display: flex;
  align-items: flex-start;
  gap: clamp(1.4rem, 3.5vw, 2.6rem);
  margin-top: 1rem;
  padding-bottom: 2rem;
}
.board-col { flex: 1; min-width: 0; }
.board-col:nth-child(2) { margin-top: 2.2rem; } /* 错开一点，更像随手放的 */
.board-col:nth-child(3) { margin-top: 4rem; }
.chip {
  display: block;
  width: 100%;
  text-align: left;
  position: relative;
  margin: 0 0 clamp(1.6rem, 3.5vw, 2.4rem);
}
.chip-v {
  display: block;
  position: relative;
  background: var(--paper);
  border-radius: 3px;
  box-shadow: var(--card-shadow);
  padding: 1.6rem 1.4rem 1.3rem;
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), background 1.2s ease, box-shadow .5s ease;
}
.chip:hover .chip-v {
  transform: translateY(-5px) rotate(0deg) !important;
  box-shadow: 0 2px 3px rgba(70,55,35,.1), 0 22px 34px -14px var(--shadow);
}
.chip:nth-child(3n+1) .chip-v { transform: rotate(-1.6deg); }
.chip:nth-child(3n+2) .chip-v { transform: rotate(1.2deg); }
.chip:nth-child(3n)   .chip-v { transform: rotate(-.7deg); }

.chip .label {
  display: block;
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--ink-faint);
  margin-bottom: .6rem;
}
.chip .peek {
  font-size: .95rem;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.chip.paper .chip-v::before, .chip.note .chip-v::before { /* 胶带，边缘撕得毛毛的 */
  content: "";
  position: absolute;
  top: -9px;
  left: 50%;
  width: 64px;
  height: 18px;
  transform: translateX(-50%) rotate(-2.5deg);
  background: var(--pink);
  opacity: .7;
  clip-path: polygon(4% 0, 96% 0, 100% 25%, 96% 50%, 100% 75%, 96% 100%, 4% 100%, 0 75%, 4% 50%, 0 25%);
}
.chip.note { width: calc(100% - 1.5rem); margin-left: .75rem; }
.chip.note .chip-v { background: var(--paper-warm); }
.chip.ticket .chip-v { /* 票根：左边一条撕口 */
  border-left: 2px dashed var(--line);
  border-radius: 6px 3px 3px 6px;
}
.chip.ticket .chip-v::after {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--wall);
  box-shadow: inset -1px 0 2px rgba(0,0,0,.08);
  transition: background 1.2s ease;
}

/* ============================================================
   展开的纸 · 碎片与抽屉共用的"展开"层
   ============================================================ */
.veil {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: color-mix(in srgb, var(--wall) 55%, transparent);
  backdrop-filter: blur(3px) saturate(.92);
  -webkit-backdrop-filter: blur(3px) saturate(.92);
  opacity: 0;
  pointer-events: none;
  transition: opacity .45s ease;
}
.veil.open { opacity: 1; pointer-events: auto; }
.unfold {
  width: min(34rem, 100%);
  max-height: 82vh;
  overflow: auto;
  background: var(--paper);
  border-radius: 3px;
  box-shadow: 0 30px 60px -20px var(--shadow), var(--card-shadow);
  padding: clamp(2rem, 6vw, 3.2rem) clamp(1.6rem, 6vw, 3rem);
  transform-origin: top center;
  transform: perspective(900px) rotateX(-38deg) translateY(12px);
  opacity: 0;
  transition: transform .6s cubic-bezier(.22,1,.36,1), opacity .5s ease, background 1.2s ease;
  position: relative;
}
.veil.open .unfold { transform: none; opacity: 1; }
.unfold::before { /* 折痕 */
  content: "";
  position: absolute;
  left: 6%; right: 6%;
  top: 33%;
  height: 1px;
  background: var(--line);
  opacity: .5;
  pointer-events: none;
}
.unfold .label {
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 1.2rem;
}
.unfold .body p {
  margin: .8em 0;
  font-size: 1rem;
}
.unfold .body p:first-child { text-indent: 0; }
.close-unfold {
  position: absolute;
  top: .8rem;
  right: .9rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  color: var(--ink-faint);
  font-size: 1.25rem;
  line-height: 1;
  transition: color .3s ease, background .3s ease;
}
.close-unfold:hover,
.close-unfold:focus-visible {
  color: var(--ink);
  background: color-mix(in srgb, var(--pink) 35%, transparent);
}

/* ============================================================
   我们 · 一条慢慢变长的路
   ============================================================ */
.stream {
  position: relative;
  max-width: 42rem;
  margin: 1rem auto 0;
  padding: 1rem 0 2rem;
}
.stream::before { /* 一根不太直的线 */
  content: "";
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 4%, var(--line) 96%, transparent);
}
.moment {
  position: relative;
  padding: 0 0 2.6rem 3rem;
}
.moment .mark {
  position: absolute;
  left: 0;
  top: .28em;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--pink-deep);
  font-size: .72rem;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--pink) 45%, transparent), var(--card-shadow);
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), background 1.2s ease;
}
.moment:hover .mark { transform: scale(1.18) rotate(-8deg); }
.moment .when {
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: .35rem;
}
.moment .what {
  display: inline-block;
  background: var(--paper);
  border-radius: 3px;
  box-shadow: var(--card-shadow);
  padding: .9rem 1.2rem;
  font-size: .97rem;
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), background 1.2s ease;
}
.moment:nth-child(odd) .what { transform: rotate(.4deg); }
.moment:nth-child(even) .what { transform: rotate(-.4deg); }
.moment:hover .what { transform: rotate(0) translateY(-2px); }
.stream-end {
  text-align: center;
  color: var(--ink-faint);
  font-size: .88rem;
  letter-spacing: .2em;
  padding: 1rem 0 0 3rem;
}

/* ============================================================
   抽屉 · 不上架的东西
   ============================================================ */
.drawer-wrap {
  max-width: 46rem;
  margin: 2rem auto 0;
}
.drawer-box {
  border: 10px solid var(--wood);
  border-radius: 6px;
  background: color-mix(in srgb, var(--wood) 10%, var(--wall));
  box-shadow: var(--card-shadow), inset 0 0 40px rgba(0,0,0,.06);
  padding: clamp(1.6rem, 5vw, 3rem);
  transition: background 1.2s ease, border-color 1.2s ease;
}
.drawer-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: clamp(1.2rem, 3vw, 2rem);
}
.drawer-item {
  position: relative;
  text-align: left;
}
.drawer-item .di-v {
  display: block;
  position: relative;
  background: var(--paper);
  border-radius: 3px;
  box-shadow: var(--card-shadow);
  padding: 1.5rem 1.3rem 1.2rem;
  transition: transform .5s cubic-bezier(.34,1.56,.64,1), background 1.2s ease, box-shadow .5s ease;
}
.drawer-item:nth-child(odd) .di-v { transform: rotate(-1.2deg); }
.drawer-item:nth-child(even) .di-v { transform: rotate(1deg); }
.drawer-item:hover .di-v {
  transform: rotate(0) translateY(-5px);
  box-shadow: 0 2px 3px rgba(70,55,35,.1), 0 22px 34px -14px var(--shadow);
}
.drawer-item .di-v::before { /* 折起来的痕 */
  content: "";
  position: absolute;
  left: 8%; right: 8%;
  top: 30%;
  height: 1px;
  background: var(--line);
  opacity: .55;
}
.drawer-item .di-v::after { /* 右上角折起来的小角 */
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: linear-gradient(225deg, var(--wall) 0 50%, var(--paper-warm) 50% 100%);
  border-radius: 0 3px 0 6px;
  box-shadow: -1px 1px 2px rgba(0,0,0,.08);
  transition: background 1.2s ease;
}
.drawer-item .kind {
  font-size: .72rem;
  letter-spacing: .22em;
  color: var(--pink-deep);
  display: block;
  margin-bottom: .5rem;
}
.drawer-item .title {
  font-size: .98rem;
  font-weight: 600;
  display: block;
}
.drawer-item .seal {
  font-size: .78rem;
  color: var(--ink-faint);
  display: block;
  margin-top: .5rem;
}
/* 小屏微调 */
@media (max-width: 640px) {
  .stream::before { left: 9px; }
  .moment { padding-left: 2.4rem; }
  .chapter p { text-indent: 2em; }
  .reader { width: 100%; }
  .reader::before { transform: none; }
  .reader::after { display: none; }
}