/* ============================================================
   世界 · 安慰按钮 —— 全站样式
   基调：深夜、安静、温柔。黑白灰 token，不新造色相。
   ============================================================ */

:root {
  /* 灰阶 token（全部带一点冷调，不用纯黑纯灰） */
  --bg: #101113;
  --bg-raised: #17181b;
  --bg-hover: #1d1f23;
  --fg: #e9eaec;
  --fg-2: #9ba1a9;
  --muted: #63676e;
  --border-soft: #26282c;
  --border-hover: #34373c;

  --radius-card: 12px;
  --motion-fast: 150ms;
  --motion-quote: 200ms;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: dark;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 主区：计数 + 短句 + 按钮 ---------- */

.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  text-align: center;
}

/* 在线陪伴：内嵌滚轮，数字比文字略大 */
.online-note {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.32em;
  font-size: 20px;
  letter-spacing: 0.05em;
  color: var(--fg-2);
}

.online-note .odometer {
  display: inline-flex;
  align-self: center;
}

/* 数字滚轮 lighter 版：无滚筒底色与刻痕，融入文字 */
.online-note .digit {
  font-size: 1.4em;
  width: 0.62em;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
}

/* 陪伴天数：安静的小字，只对这台设备说话 */
.visit-days {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.counter-total {
  margin-top: 4px;
  font-size: clamp(48px, 9vw, 76px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.counter-unit {
  margin-left: 8px;
  font-size: 0.32em;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* 计价器：机械滚轮数字。格高 1.1em 与 app.js REEL_STEP_EM 一致 */
.odometer {
  display: inline-flex;
  gap: 3px;
  vertical-align: middle;
}

.digit {
  width: 0.72em;
  height: 1.1em;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-raised);
  border: 1px solid var(--border-soft);
  font-variant-numeric: tabular-nums;
  /* 上下 inset 阴影模拟滚筒曲面 */
  box-shadow:
    inset 0 10px 8px -8px rgba(0, 0, 0, 0.55),
    inset 0 -10px 8px -8px rgba(0, 0, 0, 0.55);
}

.digit--flat {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.digit-reel {
  display: flex;
  flex-direction: column;
  transition: transform 0.45s var(--ease-standard);
}

.digit-reel span {
  display: block;
  height: 1.1em;
  line-height: 1.1em;
  text-align: center;
}

.quote {
  max-width: 30ch;
  min-height: 3.6em;
  margin-top: 12px;
  font-size: 20px;
  letter-spacing: 0.01em;
  line-height: 1.8;
  color: var(--fg-2);
  transition: opacity var(--motion-quote) var(--ease-standard);
}

.quote.is-fading {
  opacity: 0;
}

/* 中央大圆按钮：3D 圆柱拟物——顶部高光、底缘多层阴影做厚度。
   按压 = translateY 下沉 + 底缘阴影同步变薄，全程 --ease-standard，
   禁用 cubic-bezier(0.68,-0.55,0.265,1.55) 弹跳（P0-3），不 scale 破坏圆形 */
.press-btn {
  position: relative;
  margin-top: 24px;
  width: clamp(160px, 42vw, 200px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: radial-gradient(
    circle at 50% 26%,
    color-mix(in srgb, var(--fg) 18%, var(--bg-raised)) 0%,
    var(--bg-raised) 48%,
    color-mix(in srgb, #000 30%, var(--bg-raised)) 100%
  );
  cursor: pointer;
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.12),    /* 顶面受光，摆脱棋子式的死黑 */
    inset 0 -10px 18px rgba(0, 0, 0, 0.38),        /* 底部暗面：厚度 */
    inset 0 0 0 6px rgba(255, 255, 255, 0.04),     /* 面上一圈倒角 */
    0 10px 0 color-mix(in srgb, #000 35%, var(--bg-raised)),
    0 10px 0 1px rgba(255, 255, 255, 0.06),        /* 侧壁一道亮缝 */
    0 18px 28px rgba(0, 0, 0, 0.50);               /* 悬浮投影 */
  transition:
    transform var(--motion-fast) var(--ease-standard),
    box-shadow var(--motion-fast) var(--ease-standard),
    filter var(--motion-fast) var(--ease-standard);
}

/* 呼吸光环：声呐式扩散，示意「可以按」；按下时隐去 */
.press-btn::after {
  content: '';
  position: absolute;
  inset: -9px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  pointer-events: none;
  opacity: 0;
  animation: btn-halo 3.2s ease-out infinite;
}

@keyframes btn-halo {
  0%   { transform: scale(0.94); opacity: 0; }
  18%  { opacity: 0.55; }
  55%  { transform: scale(1.16); opacity: 0; }
  100% { transform: scale(1.16); opacity: 0; }
}

.press-btn:active::after {
  animation: none;
  opacity: 0;
}

.press-btn:hover {
  filter: brightness(1.08);
}

/* 按下：下沉 8px，底缘 10px→2px（贴合面），投影收紧 */
.press-btn:active {
  transform: translateY(8px);
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.12),
    inset 0 -6px 12px rgba(0, 0, 0, 0.38),
    inset 0 0 0 6px rgba(255, 255, 255, 0.04),
    0 2px 0 color-mix(in srgb, #000 35%, var(--bg-raised)),
    0 2px 0 1px rgba(255, 255, 255, 0.06),
    0 6px 10px rgba(0, 0, 0, 0.45);
}

.press-btn:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 4px;
}

/* 投稿引导：纯文本两行，不做链接不做表单（非交互式定性）；邮箱行稍亮方便抄写 */
.invite {
  margin-top: 28px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.invite-mail {
  margin-top: 2px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}

/* 通用显隐开关（stories 页的「下一则」/目录覆盖层仍在用） */
.is-hidden {
  display: none;
}

/* ---------- 页脚合规区 ---------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
}

.footer-row,
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 16px;
  row-gap: 4px;
  max-width: 960px;
  margin: 0 auto;
  font-size: 12px;
}

.footer-nav {
  margin-top: 4px;
}

.site-footer a {
  color: var(--fg-2);
  text-decoration: none;
  transition: color var(--motion-fast) var(--ease-standard);
}

.site-footer a:hover {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.police-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 官方徽标 36x40 原图，渲染 14px 高、宽按原比例；不参与 hover 变色 */
.beian-badge {
  height: 14px;
  width: auto;
  flex-shrink: 0;
}

.copyright {
  color: var(--muted);
}

/* ---------- 法律静态页 ---------- */

.legal-main {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
}

.legal-main h1 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.legal-main p {
  font-size: 15px;
  color: var(--fg-2);
  margin-bottom: 12px;
}

.legal-back {
  display: inline-block;
  margin-bottom: 28px;
  font-size: 13px;
  color: var(--fg-2);
  text-decoration: none;
}

.legal-back:hover {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 主页右上角固定入口：「我们的故事」 ---------- */

.stories-entry {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10;
  padding: 7px 14px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: #fff;               /* 黑白是 P0-3 允许的例外 */
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  transition:
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.stories-entry:hover {
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.stories-entry:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

/* ---------- 右侧天气小框：纯黑白动态特效 ---------- */

.weather-box {
  position: fixed;
  top: 64px;
  right: 16px;
  z-index: 10;
  width: 96px;
  padding: 10px 10px 9px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
}

.weather-scene {
  position: relative;
  height: 56px;
  overflow: hidden;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.weather-temp {
  margin-top: 7px;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.weather-unit {
  margin-left: 1px;
  font-size: 13px;
  font-weight: 400;
  color: var(--fg-2);
}

.weather-desc {
  margin-top: 1px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fg-2);
}

/* 时段（上午/下午/晚上）与天气名同行，仅在有时段文字时补间隔点 */
.weather-desc #weather-period:not(:empty)::after {
  content: ' · ';
}

.weather-loc {
  margin-top: 2px;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 晴：白盘 + 双层反向旋转光线 */
.w-sun {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 22px;
  height: 22px;
  margin: -11px 0 0 -11px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.55);
}

.w-sun::before,
.w-sun::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border-radius: 50%;
  background: repeating-conic-gradient(
    rgba(255, 255, 255, 0.8) 0deg 6deg,
    transparent 6deg 45deg
  );
  -webkit-mask: radial-gradient(circle, transparent 56%, #000 60%, #000 72%, transparent 76%);
  mask: radial-gradient(circle, transparent 56%, #000 60%, #000 72%, transparent 76%);
  animation: w-spin 14s linear infinite;
}

.w-sun::after {
  width: 52px;
  height: 52px;
  margin: -26px 0 0 -26px;
  opacity: 0.45;
  animation: w-spin 22s linear infinite reverse;
}

@keyframes w-spin {
  to { transform: rotate(360deg); }
}

/* 云：白色胶囊团横向漂过 */
.w-cloud {
  position: absolute;
  left: -45%;
  width: 46px;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
  filter: blur(1px);
  animation-name: w-drift;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

.w-cloud::before {
  content: '';
  position: absolute;
  left: 10px;
  top: -8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: inherit;
}

@keyframes w-drift {
  from { left: -45%; }
  to { left: 105%; }
}

/* 雨：白细线坠落 */
.w-drop {
  position: absolute;
  top: -12px;
  width: 1.5px;
  height: 10px;
  border-radius: 1px;
  background: rgba(255, 255, 255, 0.75);
  animation-name: w-fall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes w-fall {
  to {
    transform: translateY(72px);
    opacity: 0.2;
  }
}

/* 雪：白点飘落带横摆 */
.w-flake {
  position: absolute;
  top: -8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
  animation-name: w-snow;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes w-snow {
  0%   { transform: translate(0, 0);      opacity: 0.9; }
  50%  { transform: translate(-8px, 34px); }
  100% { transform: translate(4px, 70px);  opacity: 0.15; }
}

/* 雷：雨 + 偶发白闪 */
.w-bolt {
  position: absolute;
  right: 14px;
  top: 6px;
  width: 12px;
  height: 24px;
  background: #fff;
  clip-path: polygon(62% 0, 100% 0, 54% 42%, 86% 42%, 12% 100%, 42% 52%, 0 52%);
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9));
  opacity: 0;
  animation: w-bolt 5s linear infinite;
}

@keyframes w-bolt {
  0%, 84%, 92%, 100% { opacity: 0; }
  86%, 90%           { opacity: 1; }
  87.5%              { opacity: 0.2; }
}

/* 雾：白色横带往复漂移 */
.w-fog {
  position: absolute;
  width: 70%;
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  filter: blur(2px);
  animation-name: w-fogdrift;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

@keyframes w-fogdrift {
  from { left: -14%; }
  to   { left: 42%; }
}

/* ---------- 里程碑星光：每满 1000 次全屏散一次 ---------- */

.burst {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
}

.spark {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.9);
  opacity: 0;
  animation-name: spark-fly;
  animation-timing-function: ease-out;
  animation-fill-mode: forwards;
}

@keyframes spark-fly {
  0%   { transform: translate(0, 0) scale(1); opacity: 1; }
  70%  { opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) scale(0.2); opacity: 0; }
}

/* ---------- 纪念卡按钮：与全站按钮同款黑底玻璃 ---------- */

.share-btn {
  margin-top: 16px;
  padding: 7px 18px;
  font-size: 13px;
  font-family: inherit;
  letter-spacing: 0.08em;
  color: var(--fg-2);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.share-btn:hover {
  color: #fff;
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.share-btn:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

/* 故事页与「下一则」并排的分享按钮间距 */
.stories-stage .share-btn {
  margin-top: 0;
}

/* ---------- 左上角寄语：像页面标题一样的开场白 ---------- */

.manifesto {
  margin-left: 28px;
  padding: 26px 24px 0;
  max-width: 640px;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: var(--fg-2);
}

.manifesto-strong {
  color: var(--fg);
  font-size: clamp(18px, 2.4vw, 22px);
}

.manifesto p + p {
  margin-top: 2px;
}

/* ---------- 「我们的故事」页 ---------- */

.stories-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}

.stories-topbar .legal-back {
  margin-bottom: 0;
  /* 液态玻璃：纯黑底 + backdrop 模糊 + 顶部高光（黑白硬编码为 P0-3 允许例外） */
  padding: 8px 16px;
  color: var(--fg);
  text-decoration: none;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.stories-topbar .legal-back:hover {
  color: #fff;
  text-decoration: none;
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.stories-topbar .legal-back:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

.toc-btn {
  padding: 8px 16px;
  font-size: 13px;
  font-family: inherit;
  letter-spacing: 0.04em;
  color: var(--fg);
  /* 液态玻璃：与顶栏「返回世界」同款 */
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.toc-btn:hover {
  color: #fff;
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.toc-btn:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

.toc-btn:disabled {
  color: var(--muted);
  opacity: 0.5;
  cursor: default;
}

/* 目录统计行：总数 + 最近更新 + 排序切换 */
.toc-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--muted);
}

.toc-sort {
  display: inline-flex;
  gap: 6px;
}

.toc-sort-btn {
  padding: 4px 10px;
  font-size: 12px;
  font-family: inherit;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  cursor: pointer;
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard);
}

.toc-sort-btn:hover {
  color: var(--fg);
}

.toc-sort-btn.is-active {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
}

.stories-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 88px 20px 40px; /* 顶部给固定顶栏留位 */
  perspective: 1200px;
}

/* 玻璃外框：纸页时代的封皮改为液态玻璃外框
   paper 在 book 内翻页（rotateY），装饰层不放进 paper 子节点 */
.story-book {
  position: relative;
  width: min(680px, 100%);
  padding: 12px 14px 14px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 24px;
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 18px 44px rgba(0, 0, 0, 0.5);
}

/* 玻璃内页：半透明黑玻璃 + 顶部受光，字段结构不变 */
.story-paper {
  position: relative; /* 翻页 transform 锚点 */
  width: 100%;
  min-height: 280px;
  padding: clamp(24px, 4vw, 36px) clamp(22px, 5vw, 40px);
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.075) 0%,
    rgba(255, 255, 255, 0.03) 45%,
    rgba(0, 0, 0, 0.22) 100%
  );
  color: var(--fg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 6px 20px rgba(0, 0, 0, 0.35);
  transform-origin: left center;
  transition:
    transform 400ms var(--ease-standard),
    opacity 400ms var(--ease-standard);
  overflow-wrap: anywhere;
}

/* ---------- 页头：星期格 + Memo/Date ---------- */

.story-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

/* 左侧一排 7 个星期小格：玻璃描边小格，投稿日高亮 */
.story-week {
  display: flex;
  gap: 4px;
}

.story-week-cell {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 11px;
  letter-spacing: 0.02em;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  color: var(--fg-2);
}

.story-week-cell.is-today {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.38);
  color: #fff;
  font-weight: 600;
}

/* 右上 Memo No. / Date：两行下划线留白 */
.story-memo {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  margin-left: auto;
}

.story-memo-no,
.story-memo-date {
  min-width: 128px;
  padding: 0 8px 2px;
  font-size: 14px;
  text-align: right;
  color: var(--fg-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

/* 翻页两段式：翻出 → 换内容 → 从另一侧翻回。
   缓动只用 --ease-standard，禁弹跳曲线（P0-3） */
.story-paper.is-flipping {
  transform: rotateY(-88deg);
  opacity: 0;
}

.story-paper.is-entering {
  transition: none;
  transform: rotateY(88deg);
  opacity: 0;
}

.story-title {
  margin-top: 16px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.5;
}

/* 正文：17px / 1.9 行高，段首缩进 2em；保留投稿人的换行 */
.story-body {
  margin-top: 20px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--fg);
  white-space: pre-line;
  text-indent: 2em;
}

/* 署名 */
.story-author {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.8;
  text-align: right;
  color: var(--fg-2);
}

.story-state {
  padding: 24px 0;
  text-align: center;
}

.story-state-text {
  font-size: 15px;
  color: var(--fg-2);
}

.retry-btn {
  margin-top: 16px;
  padding: 8px 20px;
  font-size: 14px;
  font-family: inherit;
  color: var(--fg-2);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  cursor: pointer;
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.retry-btn:hover {
  color: #fff;
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.retry-btn:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

.stories-invite {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: center;
}

.next-btn {
  padding: 10px 32px;
  font-size: 14px;
  font-family: inherit;
  letter-spacing: 0.06em;
  color: var(--fg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  transition:
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard),
    color var(--motion-fast) var(--ease-standard);
}

.next-btn:hover {
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

.next-btn:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 3px;
}

/* ---------- 目录覆盖层 ---------- */

.toc-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.toc-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.toc-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  width: min(380px, 100%);
  padding: 20px;
  background: var(--bg-raised);
  border-left: 1px solid var(--border-soft);
}

.toc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toc-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.toc-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04),
    0 8px 24px rgba(0, 0, 0, 0.45);
  color: var(--fg-2);
  cursor: pointer;
  transition:
    color var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    background var(--motion-fast) var(--ease-standard);
}

.toc-close:hover {
  color: #fff;
  background: rgba(0, 0, 0, 0.72);
  border-color: rgba(255, 255, 255, 0.28);
}

.toc-close svg {
  width: 18px;
  height: 18px;
}

.toc-close:hover {
  color: var(--fg);
  background: var(--bg-hover);
}

.toc-close:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: 2px;
}

.toc-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 0 12px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
}

.toc-search:focus-within {
  border-color: var(--border-hover);
}

.toc-search svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
  flex-shrink: 0;
}

.toc-search input {
  flex: 1;
  min-width: 0;
  padding: 10px 0;
  font: inherit;
  font-size: 14px;
  color: var(--fg);
  background: none;
  border: none;
  outline: none;
}

.toc-list {
  flex: 1;
  margin-top: 12px;
  list-style: none;
  overflow-y: auto;
}

.toc-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  padding: 10px 8px;
  text-align: left;
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-standard);
}

.toc-item:hover {
  background: var(--bg-hover);
}

.toc-item:focus-visible {
  outline: 2px solid var(--fg-2);
  outline-offset: -2px;
}

.toc-item-title {
  font-size: 14px;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toc-item-author {
  font-size: 12px;
  color: var(--muted);
}

.toc-empty {
  padding: 16px 8px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 移动端适配 ---------- */

@media (max-width: 640px) {
  .quote {
    font-size: 18px;
  }

  /* 右上角入口与故事页顶栏收窄 */
  .stories-entry {
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    font-size: 12px;
  }

  /* 窄屏：寄语整体下移，避让右上角固定入口 */
  .manifesto {
    margin-left: 16px;
    margin-right: 16px;
    padding: 52px 14px 0 14px;
    font-size: 15px;
  }

  .manifesto-strong {
    font-size: 17px;
  }

  /* 窄屏：寄语右侧留出天气框的位，文本不压到玻璃后面 */
  .manifesto {
    padding-right: 116px;
  }

  .weather-box {
    top: 60px;
    right: 12px;
    width: 88px;
  }

  .stories-topbar {
    padding: 12px 14px;
  }

  .stories-stage {
    padding: 72px 14px 32px;
    gap: 18px;
  }

  /* 封皮窄屏收窄 */
  .story-book {
    padding: 8px 10px 10px;
  }

  /* 页头窄屏换行：星期栏与 Memo 栏上下排 */
  .story-head {
    flex-direction: column;
    align-items: stretch;
  }

  .story-memo {
    margin-left: 0;
    flex-direction: row;
    justify-content: flex-end;
    gap: 12px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  /* 翻页降级为淡入淡出：直接覆盖全局压缩规则（更具体 + 靠后），禁掉 rotateY */
  .story-paper {
    transition: opacity 200ms var(--ease-standard) !important;
    transform: none !important;
  }
}