/* ==========================================================================
   人像作品集 — 设计令牌层
   基于 shadcn 设计体系：中性底色 + 单一暖色强调 + 发丝级描边
   注意：本站故意去掉了 starter 里的网格背景纹理——照片本身就是纹理，
   任何底纹都会跟照片抢注意力。
   ========================================================================== */

@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Onest";
  src: url("fonts/onest-var.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }

:root {
  --background: 40 20% 98%;
  --foreground: 30 8% 12%;
  --card: 0 0% 100%;
  --muted: 36 14% 94%;
  --muted-foreground: 30 6% 44%;
  --border: 34 12% 88%;
  --primary: 20 34% 38%;
  --primary-foreground: 40 30% 98%;
  --ring: 20 40% 48%;
  --radius: 0.5rem;
  --shadow: 0 1px 2px hsl(30 10% 10% / 0.04), 0 14px 36px hsl(30 10% 10% / 0.07);

  --font-display: "Instrument Serif", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --font-body: "Onest", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  --gutter: 24px;
  --maxw: 1240px;
  color-scheme: light;
}

[data-theme="dark"] {
  --background: 30 7% 7%;
  --foreground: 40 14% 94%;
  --card: 30 7% 10%;
  --muted: 30 6% 15%;
  --muted-foreground: 36 6% 60%;
  --border: 30 6% 18%;
  --primary: 26 52% 66%;
  --primary-foreground: 30 20% 10%;
  --ring: 26 52% 60%;
  --shadow: 0 1px 2px hsl(0 0% 0% / 0.4), 0 18px 46px hsl(0 0% 0% / 0.5);
  color-scheme: dark;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: hsl(var(--foreground));
  background: hsl(var(--background));
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.35s ease, color 0.35s ease;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { background: hsl(var(--primary) / 0.24); }
:focus-visible { outline: 2px solid hsl(var(--ring)); outline-offset: 3px; border-radius: 3px; }

.shell { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* --------------------------------------------------------------------------
   排版
   -------------------------------------------------------------------------- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.12;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
}
.lead { color: hsl(var(--muted-foreground)); }

/* --------------------------------------------------------------------------
   顶栏
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  transition: background-color 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
/* 首页顶栏浮在封面图上，文字强制为浅色 */
.site-header.over-hero { color: #fff; }
.site-header.over-hero .theme-toggle {
  border-color: hsl(0 0% 100% / 0.3);
  background: hsl(0 0% 0% / 0.2);
  color: #fff;
  backdrop-filter: blur(8px);
}
.site-header.scrolled {
  background: hsl(var(--background) / 0.82);
  backdrop-filter: saturate(1.5) blur(14px);
  border-bottom-color: hsl(var(--border));
  color: hsl(var(--foreground));
}
.site-header.scrolled .theme-toggle {
  border-color: hsl(var(--border));
  background: hsl(var(--card));
  color: hsl(var(--foreground));
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .n { font-family: var(--font-display); font-size: 19px; letter-spacing: 0.01em; }
.brand .r {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.66;
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.back-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; opacity: 0.8; transition: opacity 0.2s ease;
}
@media (hover: hover) { .back-link:hover { opacity: 1; } }
.back-link svg { width: 14px; height: 14px; }

.theme-toggle {
  display: grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  color: hsl(var(--foreground));
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
@media (hover: hover) { .theme-toggle:hover { transform: translateY(-1px); } }

/* 语言切换：跟主题按钮同一套外形，只是里面是字不是图标 */
.lang-switch {
  display: inline-grid; place-items: center;
  min-width: 34px; height: 34px; padding: 0 9px;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  color: hsl(var(--foreground));
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .1em; line-height: 1;
  transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
  -webkit-tap-highlight-color: transparent;
}
/* 首页顶栏浮在封面照片上，这里要跟着变成浅色描边 */
.site-header.over-hero .lang-switch {
  border-color: hsl(0 0% 100% / 0.3);
  background: hsl(0 0% 0% / 0.2);
  color: #fff;
  backdrop-filter: blur(8px);
}
.site-header.scrolled .lang-switch {
  border-color: hsl(var(--border));
  background: hsl(var(--card));
  color: hsl(var(--foreground));
}
@media (hover: hover) { .lang-switch:hover { transform: translateY(-1px); } }
.lang-switch:active { transform: none; }
.theme-toggle svg { width: 15px; height: 15px; }
.theme-toggle .moon { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: none; }
[data-theme="dark"] .theme-toggle .moon { display: block; }

/* --------------------------------------------------------------------------
   图片基元：占位模糊图 + 防跳版
   -------------------------------------------------------------------------- */
.ph {
  position: relative;
  overflow: hidden;
  background-color: hsl(var(--muted));
  background-size: cover;
  background-position: center;
}
.ph > img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.ph > img.loaded { opacity: 1; }

/* 实况照片：静音循环的短视频盖在静态图上；静态图仍在下面兜底 */
.ph > .live {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.ph > .live.loaded { opacity: 1; }
.live-badge {
  position: absolute; top: 12px; left: 12px;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 10px 5px 8px;
  border-radius: 999px;
  border: 1px solid hsl(0 0% 100% / 0.24);
  background: hsl(0 0% 0% / 0.28);
  backdrop-filter: blur(8px);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: 0.08em; line-height: 1;
}
.live-badge::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 0 hsl(0 0% 100% / 0.5);
  animation: pulse 2.4s ease-out infinite;
}
/* 用户要求减少动效时，直接退回静态图 */
@media (prefers-reduced-motion: reduce) {
  .ph > .live, .live-badge { display: none; }
}

/* 只给读屏软件看的文字：视觉上完全不存在，但不能用 display:none，
   那样读屏软件也读不到 */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   首页 · 封面
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero .ph { position: absolute; inset: 0; }
/* --hero-focus / --hero-zoom 由模板按 site.config.json 写在 .hero 上。
   focus 同时当取景点和缩放中心：放大时围着这个点放，而不是围着照片正中。
   载入时那点 1.04 倍的缓推是叠在 zoom 上的，所以两者相乘。 */
.hero .ph > img {
  object-position: var(--hero-focus, 50% 50%);
  transform-origin: var(--hero-focus, 50% 50%);
  transform: scale(calc(var(--hero-zoom, 1) * 1.04));
  transition: opacity 1.2s ease, transform 6s cubic-bezier(0.2, 0.6, 0.3, 1);
}
.hero .ph > img.loaded { transform: scale(var(--hero-zoom, 1)); }
/* 上下两头压暗：顶上让顶栏的白字站得住，底下让 SCROLL 提示不糊在照片里。
   中间几乎不动，照片本身要保持干净。 */
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to bottom,
    hsl(0 0% 0% / 0.42) 0%,
    hsl(0 0% 0% / 0.10) 26%,
    hsl(0 0% 0% / 0.08) 62%,
    hsl(0 0% 0% / 0.34) 100%);
  pointer-events: none;
}
.scroll-hint {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: grid; place-items: center; gap: 8px;
  color: hsl(0 0% 100% / 0.6);
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.2em;
}
.scroll-hint .bar {
  width: 1px; height: 34px;
  background: linear-gradient(to bottom, hsl(0 0% 100% / 0.7), transparent);
  animation: drop 2.4s ease-in-out infinite;
}
@keyframes drop {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
}

/* --------------------------------------------------------------------------
   自述段落
   -------------------------------------------------------------------------- */
.statement {
  padding-block: clamp(80px, 13vh, 150px);
  border-bottom: 1px solid hsl(var(--border));
}
.statement p {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.7vw, 33px);
  line-height: 1.55;
  letter-spacing: -0.005em;
  max-width: 21em;
  margin: 0;
  white-space: pre-line;
  text-wrap: pretty; /* 避免最后一行只剩一两个字 */
}

/* --------------------------------------------------------------------------
   分区
   -------------------------------------------------------------------------- */
.section { padding-block: clamp(72px, 11vh, 128px); border-bottom: 1px solid hsl(var(--border)); }
/* 用 grid 而不是 flex：desc 要稳定地独占一行，
   flex + flex-basis:100% 会因为 max-width 收缩而挤回标题那行 */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: clamp(36px, 5vh, 60px);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.15;
}
.section-head .latin {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em;
  color: hsl(var(--muted-foreground));
  padding-bottom: 4px;
}
.section-head .desc {
  grid-column: 1 / -1;
  max-width: 46em;
  margin: 4px 0 0;
  color: hsl(var(--muted-foreground));
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   城市分组
   -------------------------------------------------------------------------- */
/* 索引小板块：一排可点的城市，点了跳到对应分组 */
.city-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(30px, 4vw, 48px);
  padding-bottom: clamp(20px, 2.6vw, 28px);
  border-bottom: 1px solid hsl(var(--border));
}
.city-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  background: hsl(var(--card));
  font-size: 14px;
  line-height: 1;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}
@media (hover: hover) {
  .city-chip:hover {
    border-color: hsl(var(--primary) / 0.55);
    background: hsl(var(--muted));
    transform: translateY(-1px);
  }
}

.city-group + .city-group { margin-top: clamp(48px, 7vw, 88px); }
.city-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: clamp(20px, 2.6vw, 30px);
  /* 顶栏是固定定位的，锚点跳过去要留出它的高度，否则标题会被压在栏下面 */
  scroll-margin-top: 92px;
}
.city-head h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3.2vw, 34px);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0;
  flex: none;
}
.city-head .rule {
  flex: 1;
  height: 1px;
  background: hsl(var(--border));
  /* 跟基线对齐，视觉上像一条穿过城市名右侧的横线 */
  transform: translateY(-4px);
}

/* 组内两列。同城通常 2–3 组，两列正好并排；
   单组的城市占左半边，右边留白，由上方的城市标题撑住结构。 */
.topics { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(28px, 4vw, 56px) clamp(20px, 3vw, 40px); }
/* 偶数张下沉一点，避免整齐两列的模板感 */
.topic:nth-child(even) { margin-top: clamp(0px, 3.5vw, 52px); }

/* 卡片是整块可点的：链接铺一层透明的覆盖面，图片、标题、标签都在它下面。
   横向手势归自己处理，竖向滚动和双指缩放交还给浏览器。 */
.topic {
  position: relative;
  /* 两条要都写。pinch-zoom 这个关键字不是所有内核都认（Safari 和微信里的
     X5 都有过不认的版本），而 CSS 里只要有一个值解析不了，整条声明就作废，
     touch-action 会掉回 auto——那时候横划会被浏览器当成滚动，正是要避免的。
     写两条，认得的用下面那条（顺带保住双指缩放），不认的还剩上面这条。 */
  touch-action: pan-y;
  touch-action: pan-y pinch-zoom;
}
.topic-link { display: block; }
.topic-link::after { content: ""; position: absolute; inset: 0; z-index: 1; }

.topic .ph {
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
/* 一组里横竖构图常常混着。卡片框的高度必须固定——它一变，整行卡片
   都要跟着跳——所以照片一律 contain 完整放进去，不裁。留白由这张照片
   自己的模糊占位图（.ph 的背景）填上，不会出现突兀的黑边。
   框定成 2/3 是因为竖构图正好是这个比例，占多数的那批能不留白。 */
.topic .ph > img { object-fit: contain; }
.topic .ph > img { transition: opacity 0.6s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
@media (hover: hover) { .topic:hover .ph > img.loaded { transform: scale(1.035); } }

/* --------------------------------------------------------------------------
   卡片里的照片组：左右滑动翻看同一个文件夹
   -------------------------------------------------------------------------- */
/* 不要给 .deck 设 z-index：一旦生成层叠上下文，里面的箭头和圆点就再也
   盖不过上面那层 z-index:1 的链接覆盖面了 */
.deck {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
}
.deck-track {
  display: flex;
  height: 100%;
  will-change: transform;
  transform: translate3d(calc(var(--i, 0) * -100% + var(--dx, 0px)), 0, 0);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}
.deck-track.dragging { transition: none; }
.deck .slide {
  flex: 0 0 100%;
  height: 100%;
  border-radius: 0;      /* 圆角由 .deck 统一裁，滑动时才不会露出内圈 */
  aspect-ratio: auto;
}
/* 拖动中放大会让画面发飘，滑走的时候先停掉悬停缩放 */
.deck-track.dragging .ph > img { transform: none !important; }

/* 箭头和圆点要等 JS 接管之后才出现。脚本没跑起来（或被拦了）时卡片就是
   一张静态封面，不该摆一组点了没反应的控件在那儿。 */
.deck-nav, .deck-dots { display: none; }
.deck.ready .deck-dots { display: flex; }
.deck.ready .deck-nav {
  display: grid;
  position: absolute; top: 50%; z-index: 2;
  transform: translateY(-50%);
  width: 34px; height: 34px;
  place-items: center;
  border: none; border-radius: 50%;
  background: hsl(0 0% 0% / 0.34);
  backdrop-filter: blur(6px);
  color: #fff; cursor: pointer;
  opacity: 0;
  transition: opacity 0.22s ease, background-color 0.2s ease;
}
.deck-nav svg { width: 17px; height: 17px; }
.deck-nav.prev { left: 10px; }
.deck-nav.next { right: 10px; }
@media (hover: hover) { .deck-nav:hover { background: hsl(0 0% 0% / 0.5); } }
.deck-nav[hidden] { display: none !important; }   /* 到头时整个藏掉 */
.topic:hover .deck.ready .deck-nav,
.deck.ready .deck-nav:focus-visible { opacity: 1; }
/* 触屏没有悬停，箭头一直占着画面反而碍事——那里靠手势翻 */
@media (hover: none) {
  .deck.ready .deck-nav { display: none; }
}

.deck.ready .deck-dots {
  position: absolute; z-index: 2;
  left: 50%; bottom: 10px;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 5px;
  padding: 5px 8px;
  border-radius: 999px;
  background: hsl(0 0% 0% / 0.3);
  backdrop-filter: blur(6px);
  /* 只有一张照片时整块不出现，由模板决定；这里保证空的时候也不占位 */
  opacity: 0.92;
}
.deck-dots .dot {
  width: 5px; height: 5px; padding: 0;
  border: none; border-radius: 50%;
  background: hsl(0 0% 100% / 0.45);
  cursor: pointer;
  transition: background-color 0.2s ease, width 0.2s ease;
}
.deck-dots .dot.on { background: #fff; width: 14px; border-radius: 999px; }

@media (prefers-reduced-motion: reduce) {
  .deck-track { transition: none; }
}
.topic-meta {
  display: flex; align-items: baseline; gap: 12px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid hsl(var(--border));
}
.topic-meta .idx {
  font-family: var(--font-mono); font-size: 11px;
  color: hsl(var(--primary)); letter-spacing: 0.06em;
}
.topic-meta .t { font-size: 17px; font-weight: 500; letter-spacing: 0.01em; }

/* --------------------------------------------------------------------------
   品类标签
   -------------------------------------------------------------------------- */
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag {
  font-size: 11.5px; line-height: 1;
  padding: 5px 9px; border-radius: 999px;
  border: 1px solid hsl(var(--border));
  color: hsl(var(--muted-foreground));
  background: hsl(var(--muted) / 0.5);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   巡回档期
   -------------------------------------------------------------------------- */
.schedule {
  list-style: none; margin: 0; padding: 0;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  overflow: hidden;
  background: hsl(var(--card));
}
.sch-row {
  display: grid;
  grid-template-columns: 5.5em minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px 16px;
  padding: 16px 20px;
  border-top: 1px solid hsl(var(--border));
  transition: background-color 0.2s ease;
}
.sch-row:first-child { border-top: none; }
.sch-row .m {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.08em; color: hsl(var(--muted-foreground));
}
.sch-row .c { font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 26px); line-height: 1.2; }
.sch-row .s {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13.5px; color: hsl(var(--muted-foreground)); white-space: nowrap;
  justify-self: end;
}
.sch-row.full .c { opacity: 0.5; }
.sch-row.full .s { opacity: 0.75; }
.sch-row.open .s { color: hsl(var(--primary)); }
.sch-row .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
/* 有档期：实心 + 呼吸 */
.sch-row.open .dot {
  background: hsl(var(--primary));
  box-shadow: 0 0 0 0 hsl(var(--primary) / 0.55);
  animation: pulse 2.4s ease-out infinite;
}
/* 已约满：同尺寸的空心圈，安静不呼吸。跟实心点是同一套语言，一眼能分出「有位 / 没位」 */
.sch-row.full .dot { border: 1.5px solid hsl(var(--muted-foreground) / 0.6); }
@keyframes pulse {
  70% { box-shadow: 0 0 0 8px hsl(var(--primary) / 0); }
  100% { box-shadow: 0 0 0 0 hsl(var(--primary) / 0); }
}
.sch-row.cta { display: block; padding: 0; background: hsl(var(--muted) / 0.4); }
.sch-row.cta a {
  display: block; padding: 16px 20px;
  font-size: 14px; font-weight: 500;
  transition: background-color 0.2s ease, color 0.2s ease;
}
@media (hover: hover) { .sch-row.cta a:hover { background: hsl(var(--muted)); color: hsl(var(--primary)); } }

/* --------------------------------------------------------------------------
   关于 / 联系
   -------------------------------------------------------------------------- */
.about { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.about .ph { border-radius: var(--radius); aspect-ratio: 4 / 5; }
.about h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(28px, 3.8vw, 42px); letter-spacing: -0.02em;
  margin: 0 0 22px;
}
.about p { margin: 0 0 16px; color: hsl(var(--muted-foreground)); max-width: 34em; }
.about p:last-child { margin-bottom: 0; }

.contact { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.contact h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(28px, 3.8vw, 42px); letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.contact .desc { color: hsl(var(--muted-foreground)); margin: 0 0 26px; max-width: 30em; }
.contact-list { display: grid; gap: 1px; background: hsl(var(--border)); border: 1px solid hsl(var(--border)); border-radius: var(--radius); overflow: hidden; }
.contact-list .row {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 10px 14px 18px; background: hsl(var(--card));
}
.contact-list .k { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: hsl(var(--muted-foreground)); }
.contact-list .v { font-size: 15px; font-weight: 500; margin-left: auto; word-break: break-all; }

/* 复制按钮：平时低调，悬停/点击才亮起来 */
.copy {
  flex: none;
  width: 34px; height: 34px;
  display: grid; place-items: center; position: relative;
  border: none; border-radius: 8px; padding: 0;
  background: transparent; cursor: pointer;
  color: hsl(var(--muted-foreground));
  transition: color 0.2s ease, background-color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}
/* hover 效果只给真有指针的设备。触屏上没有「移开」这个动作，第一次点
   只会把 hover 状态贴上去（按钮变灰但没反应），得再点一次才派发 click
   ——就是「复制按钮要点两次」的由来。触屏改用 :active 给按下反馈。 */
@media (hover: hover) {
  .copy:hover { color: hsl(var(--foreground)); background: hsl(var(--muted)); }
}
.copy:active { color: hsl(var(--foreground)); background: hsl(var(--muted)); }
/* 图标还是 34px 见方，但可点范围撑到 44px——手指按不了那么准，
   34px 已经低于触摸目标的最小尺寸了 */
.copy::before { content: ""; position: absolute; inset: -5px; }
.copy svg {
  grid-area: 1 / 1;
  width: 17px; height: 17px;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.copy .i-done { opacity: 0; transform: scale(0.7); }
.copy.copied { color: hsl(var(--primary)); }
.copy.copied .i-copy { opacity: 0; transform: scale(0.7); }
.copy.copied .i-done { opacity: 1; transform: none; }

/* 复制成功的提示条：屏幕下方居中，2 秒后自己淡掉 */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 12px);
  z-index: 200;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  box-shadow: var(--shadow);
  font-size: 14px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.qr-card {
  max-width: 300px;
  margin-inline-start: auto; /* .qr-card 的父级才是 grid item，只能用 margin 靠右 */
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background: hsl(var(--card));
  padding: 18px;
  display: grid; gap: 12px; justify-items: center;
  box-shadow: var(--shadow);
}
.qr-card .ph { width: 100%; aspect-ratio: 1; border-radius: calc(var(--radius) - 2px); }
.qr-card .cap { font-size: 12.5px; color: hsl(var(--muted-foreground)); }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.site-footer {
  padding-block: 44px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  font-size: 12.5px; color: hsl(var(--muted-foreground));
}
.site-footer .f-name { font-family: var(--font-display); font-size: 16px; color: hsl(var(--foreground)); }

/* --------------------------------------------------------------------------
   专题页
   -------------------------------------------------------------------------- */
.topic-hero { padding-block: calc(72px + clamp(48px, 9vh, 96px)) clamp(36px, 6vh, 64px); }
.topic-hero .eyebrow { display: block; margin-bottom: 16px; }
.topic-hero h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(36px, 6vw, 68px); letter-spacing: -0.025em;
  margin: 0; line-height: 1.1;
}
.topic-hero .tags { margin-top: 16px; }
.topic-hero .note { margin: 26px 0 0; max-width: 34em; color: hsl(var(--muted-foreground)); font-size: 15px; }
.topic-facts {
  display: flex; flex-wrap: wrap; gap: 8px 26px;
  margin-top: 30px; padding-top: 22px;
  border-top: 1px solid hsl(var(--border));
  /* 字距收紧：0.1em 在中文上会把每个字都撑开，读起来发散 */
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.04em;
  color: hsl(var(--muted-foreground));
}
.topic-facts span { position: relative; }
.topic-facts span + span::before {
  content: "/";
  position: absolute; left: -15px;
  opacity: 0.45;
}

.frames { display: grid; gap: clamp(28px, 5vw, 64px); max-width: 940px; margin: 0 auto; padding-bottom: clamp(60px, 9vh, 110px); }
.frame { position: relative; }
.frame .ph { border-radius: var(--radius); cursor: zoom-in; }
.frame .n {
  position: absolute; top: 10px; left: -46px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em;
  color: hsl(var(--muted-foreground));
}
@media (max-width: 1080px) { .frame .n { display: none; } }

/* 上一组 / 下一组：左右对称的两张卡片 */
.topic-nav {
  border-top: 1px solid hsl(var(--border));
  padding-block: clamp(48px, 7vh, 80px);
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(14px, 2vw, 24px);
}
.nav-card {
  display: flex; align-items: center; gap: clamp(12px, 1.6vw, 20px);
  border: 1px solid hsl(var(--border)); border-radius: var(--radius);
  padding: 14px; background: hsl(var(--card));
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
@media (hover: hover) {
  .nav-card:hover { border-color: hsl(var(--foreground) / 0.2); box-shadow: var(--shadow); }
  .nav-card.prev:hover { transform: translateX(-3px); }
  .nav-card.next:hover { transform: translateX(3px); }
}
.nav-card.next { justify-content: flex-end; }

.nav-card .ph { width: clamp(72px, 9vw, 104px); flex: none; border-radius: calc(var(--radius) - 3px); }
.nav-card .txt { display: grid; gap: 2px; min-width: 0; }
.nav-card.next .txt { text-align: right; }
.nav-card .txt .t {
  font-family: var(--font-display); font-size: clamp(18px, 2.2vw, 24px); line-height: 1.25;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.nav-card .txt .meta { font-size: 12.5px; color: hsl(var(--muted-foreground)); }
.nav-card .arrow {
  font-family: var(--font-mono); font-size: 18px; flex: none;
  color: hsl(var(--muted-foreground)); padding: 0 4px;
  transition: color 0.25s ease;
}
@media (hover: hover) { .nav-card:hover .arrow { color: hsl(var(--primary)); } }

.cta-band { border-top: 1px solid hsl(var(--border)); padding-block: clamp(56px, 8vh, 96px); text-align: center; }
.cta-band h2 { font-family: var(--font-display); font-weight: 400; font-size: clamp(26px, 4vw, 40px); margin: 0 0 14px; letter-spacing: -0.02em; }
.cta-band p { color: hsl(var(--muted-foreground)); margin: 0 0 26px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 42px; padding: 0 20px;
  border-radius: 999px; font-size: 14px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}
.btn.primary { background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); }
@media (hover: hover) { .btn.primary:hover { opacity: 0.88; transform: translateY(-1px); } }
.btn.outline { background: transparent; border-color: hsl(var(--border)); color: hsl(var(--foreground)); }
@media (hover: hover) { .btn.outline:hover { background: hsl(var(--muted)); border-color: hsl(var(--foreground) / 0.2); transform: translateY(-1px); } }

/* --------------------------------------------------------------------------
   灯箱
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: hsl(30 8% 5% / 0.96);
  display: none; place-items: center;
  opacity: 0; transition: opacity 0.25s ease;
  touch-action: none;
}
.lightbox.open { display: grid; }
.lightbox.visible { opacity: 1; }
.lightbox img {
  max-width: 92vw; max-height: 88svh;
  width: auto; height: auto;
  object-fit: contain;
  border-radius: 2px;
  user-select: none; -webkit-user-drag: none;
}
.lightbox .lb-count {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  color: hsl(0 0% 100% / 0.6);
}
.lb-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 999px;
  display: grid; place-items: center;
  border: 1px solid hsl(0 0% 100% / 0.2);
  background: hsl(0 0% 0% / 0.35); color: #fff;
  cursor: pointer; transition: background-color 0.2s ease;
}
@media (hover: hover) { .lb-btn:hover { background: hsl(0 0% 100% / 0.16); } }
.lb-btn svg { width: 18px; height: 18px; }
.lb-prev { left: 18px; }
.lb-next { right: 18px; }
.lb-close { top: 18px; right: 18px; transform: none; }
@media (max-width: 720px) {
  .lb-prev, .lb-next { display: none; }
}

/* --------------------------------------------------------------------------
   入场动画
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1), transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero .ph > img { transform: none !important; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .about, .contact { grid-template-columns: 1fr; }
  .about .ph { aspect-ratio: 3 / 2; }
  .contact { gap: 32px; }
  /* 单列之后二维码不再是右半边的一块，居中摆更像一张卡 */
  .qr-card { max-width: 260px; margin-inline: auto; }
}

@media (max-width: 680px) {
  :root { --gutter: 18px; }
  .section-head h2 .here svg { width: 0.8em; height: 0.8em; flex: none; }

  /* 手机上一屏只有三百多像素宽，两列会把竖幅照片压成邮票，
     标题也要换行。所以一律回到单列，并取消偶数张的错位下沉。 */
  .topics { grid-template-columns: 1fr; gap: 44px; }
  /* 单列时卡片框改成 2/3，正好是竖构图的比例，多数照片一点白边都没有。
     桌面不能这么干——两列各 577px 宽，2/3 会让卡片比整个视口还高。 */
  .deck, .topic > .ph { aspect-ratio: 2 / 3; }
  .topic:nth-child(even) { margin-top: 0; }

  /* 上一组 / 下一组：并排放不下缩略图 + 标题 + 城市，改成上下两行。
     两张卡仍保持左右镜像（上一组靠左、下一组靠右），方向感不丢。 */
  .topic-nav { grid-template-columns: 1fr; }

  /* 档期行：三列并排会把「有档期」挤到换行，改成月份+城市一行、状态另起一行 */
  .sch-row { grid-template-columns: 1fr auto; }
  .sch-row .m { grid-column: 1 / -1; }
}