:root {
  --lichen: #DCE1D3;   /* page: weathered stone with moss */
  --paper:  #EEF0E8;   /* surfaces */
  --ink:    #1E2822;   /* text */
  --moss:   #3E5C4A;   /* secondary */
  --iron:   #6B3F2C;   /* rusted iron, used sparingly */
  --muted:  #5E6A61;
  --line:   #B9C2B3;
  --font: "LXGW WenKai Screen", "Kaiti SC", "STKaiti", "KaiTi", serif;
  --measure: 34em;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--lichen);
  color: var(--ink);
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--iron); outline-offset: 3px; }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(40px, 9vw, 110px) clamp(16px, 6vw, 72px) 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.mark {
  margin: 0;
  font-weight: 700;
  font-size: clamp(46px, 11vw, 128px);
  line-height: .9;
  white-space: nowrap;
  letter-spacing: -.02em;
  display: flex;
  flex-direction: column;
}
.mark span:nth-child(1) { color: var(--ink); }
.mark span:nth-child(2) { color: var(--moss); padding-left: .4em; }
.mark span:nth-child(3) {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--moss);
  padding-left: .8em;
}
.mark span { opacity: 0; animation: carve .9s ease-out forwards; }
.mark span:nth-child(2) { animation-delay: .25s; }
.mark span:nth-child(3) { animation-delay: .5s; }
@keyframes carve { from { opacity: 0; filter: blur(6px); } to { opacity: 1; filter: none; } }
@media (prefers-reduced-motion: reduce) { .mark span { animation: none; opacity: 1; } }

@media (max-width: 640px) { .mark span:nth-child(3) { -webkit-text-stroke-width: 1px; } }
.lede {
  margin: 36px 0 0;
  max-width: var(--measure);
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--muted);
}
.tabs {
  position: sticky; top: 0; z-index: 5;
  background: var(--lichen);
  border-bottom: 1px solid var(--line);
}
.tabs-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 clamp(16px, 6vw, 72px);
  display: flex; gap: 4px 26px; overflow-x: auto; scrollbar-width: none;
}
.tabs-inner::-webkit-scrollbar { display: none; }
.tabs a {
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  padding: 12px 0 10px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--ink); font-weight: 700; border-bottom-color: var(--iron); }

/* ---------- Sections ---------- */
main { max-width: 1100px; margin: 0 auto; padding: 0 clamp(16px, 6vw, 72px); }
.block { padding: 40px 0 24px; min-height: 60vh; }
.block[hidden] { display: none; }
.block-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  margin-bottom: 28px;
}
.block-head h2 { margin: 0; font-size: clamp(28px, 4vw, 38px); font-weight: 700; }

.add {
  border: 1px solid var(--moss); background: transparent; color: var(--moss);
  padding: 6px 14px; border-radius: 999px; cursor: pointer; font-size: 15px;
  white-space: nowrap;
}
.add:hover { background: var(--moss); color: var(--paper); }

.empty { color: var(--muted); margin: 0; }

/* ---------- Trips timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; }
.trip {
  display: grid;
  grid-template-columns: 7.5em 1fr;
  gap: 8px 32px;
  padding-bottom: 56px;
}
.trip-date {
  color: var(--iron);
  font-size: 16px;
  padding-top: 4px;
  border-top: 2px solid var(--iron);
  align-self: start;
}
.trip-date small { display: block; color: var(--muted); }
.trip h3 { margin: 0 0 6px; font-size: clamp(24px, 3.4vw, 32px); line-height: 1.3; }
.trip .story { margin: 0 0 18px; max-width: var(--measure); white-space: pre-wrap; }
.write {
  display: block; width: 100%; max-width: var(--measure); text-align: left;
  margin: 0 0 18px; padding: 14px 16px; cursor: text;
  border: 1px dashed var(--line); border-radius: 4px; background: transparent; color: var(--muted);
}
.write:hover { border-color: var(--moss); color: var(--moss); }
.edit-form { display: grid; gap: 10px; max-width: var(--measure); margin-bottom: 18px; }
.edit-form .edit-title { font-size: clamp(22px, 3vw, 28px); font-weight: 700; }
.edit-form textarea { line-height: 1.75; resize: vertical; }
.tools { display: flex; gap: 14px; margin-top: 10px; }

/* 排版选择 */
.layout-pick { border: 0; padding: 0; margin: 4px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.layout-pick legend, .pe-head { font-size: 15px; color: var(--muted); margin-bottom: 6px; padding: 0; }
.lp-opt {
  display: flex; gap: 10px; align-items: center; cursor: pointer;
  border: 1px solid var(--line); border-radius: 4px; padding: 8px 10px; color: var(--ink); background: var(--paper);
}
.lp-opt:has(input:checked) { border-color: var(--moss); box-shadow: inset 0 0 0 1px var(--moss); }
.lp-opt input { position: absolute; opacity: 0; pointer-events: none; }
.lp-opt:has(input:focus-visible) { outline: 2px solid var(--iron); outline-offset: 2px; }
.lp-opt b { display: block; font-weight: 700; font-size: 15px; }
.lp-opt small { display: block; color: var(--muted); font-size: 13px; line-height: 1.4; }
.lp-icon { flex: none; width: 42px; height: 34px; display: grid; gap: 2px; grid-template-columns: repeat(3, 1fr); }
.lp-icon i { background: var(--moss); opacity: .55; border-radius: 1px; }
.lp-cover i:first-child, .lp-cover-full i:first-child { grid-column: 1 / -1; opacity: .9; }
.lp-cover-full i:first-child { height: 20px; }
.lp-grid { grid-template-columns: 1fr 1fr; }
.lp-natural { grid-template-columns: 1fr 1fr; grid-template-rows: 14px 8px 10px; }
.lp-natural i:nth-child(1) { grid-row: span 2; }
.lp-natural i:nth-child(4) { grid-row: span 2; }
@media (max-width: 480px) { .layout-pick { grid-template-columns: 1fr; } }

/* 照片顺序 */
.pe-head small { margin-left: 8px; font-size: 13px; }
.pe-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
.pe-item { position: relative; }
.pe-item img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 3px; }
.pe-item:first-child img { outline: 2px solid var(--moss); outline-offset: 1px; }
.pe-cover {
  position: absolute; top: 6px; left: 6px; background: var(--moss); color: var(--paper);
  font-size: 12px; padding: 0 6px; border-radius: 3px;
}
.pe-tools { display: flex; gap: 4px; margin-top: 4px; flex-wrap: wrap; }
.pe-tools button {
  border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 3px;
  min-width: 28px; height: 28px; padding: 0 6px; font-size: 13px; cursor: pointer; line-height: 1;
}
.pe-tools button:hover:not(:disabled) { border-color: var(--moss); color: var(--moss); }
.pe-tools button:disabled { opacity: .35; cursor: default; }
.pe-add { margin-top: 10px; }
.photos { display: grid; gap: 10px; grid-template-columns: repeat(6, 1fr); }
.photos button { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; }
.photos img { width: 100%; height: 100%; object-fit: cover; border-radius: 3px; }

/* 大图在前 / 大图完整：第一张占满一行，其余三列方块 */
.layout-cover > :first-child,
.layout-cover-full > :first-child { grid-column: 1 / -1; }
.layout-cover > :first-child img { aspect-ratio: 16 / 9; }
.layout-cover-full > :first-child img { height: auto; max-height: 85vh; object-fit: contain; }
.layout-cover > :not(:first-child),
.layout-cover-full > :not(:first-child) { grid-column: span 2; }
.layout-cover > :not(:first-child) img,
.layout-cover-full > :not(:first-child) img { aspect-ratio: 1; }

/* 方格平铺 */
.layout-grid > * { grid-column: span 2; }
.layout-grid img { aspect-ratio: 1; }

/* 原比例拼贴 */
.layout-natural { display: block; columns: 2; column-gap: 10px; }
.layout-natural > * { break-inside: avoid; margin-bottom: 10px; width: 100%; }
.layout-natural img { height: auto; }

/* 只有一张照片时，无论哪种排版都完整显示 */
.photos > :only-child { grid-column: 1 / -1; }
.photos > :only-child img { aspect-ratio: auto; height: auto; max-height: 85vh; object-fit: contain; }

@media (max-width: 640px) {
  .trip { grid-template-columns: 1fr; }
  .trip-date { border-top: 0; border-left: 2px solid var(--iron); padding: 0 0 0 10px; }
  .trip-date small { display: inline; margin-left: 8px; }
  .layout-cover > :not(:first-child),
  .layout-cover-full > :not(:first-child),
  .layout-grid > * { grid-column: span 3; }
}

/* ---------- Shows ---------- */
.shows { list-style: none; margin: 0; padding: 0; }
.show {
  display: grid; grid-template-columns: minmax(8em, 1fr) 2fr; gap: 4px 32px;
  padding: 18px 0; border-bottom: 1px dashed var(--line);
}
.show h3 { margin: 0; font-size: 22px; }
.show .meta { color: var(--muted); font-size: 15px; }
.show p { margin: 0; max-width: var(--measure); }
.show q { display: block; margin-top: 6px; color: var(--moss); quotes: "「" "」"; }
.show-cover { margin-bottom: 10px; max-width: 220px; }
.show-cover button, .show-thumbs button { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; width: 100%; }
.show-cover img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 3px; }
.show-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; margin-top: 12px; max-width: var(--measure); }
.show-thumbs img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 3px; }
.show-editing { display: block; }
.edit-show { margin: 0; }
@media (max-width: 640px) { .show { grid-template-columns: 1fr; } .show-cover { max-width: none; } }

/* ---------- Notes ---------- */
.notes { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.note { max-width: var(--measure); }
.note p { margin: 0; font-size: 21px; white-space: pre-wrap; }
.note .by { color: var(--muted); font-size: 15px; margin-top: 4px; }

/* small delete control for members */
.del {
  border: 0; background: none; color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 0; text-decoration: underline; margin-top: 6px;
}
.del:hover { color: var(--iron); }

/* ---------- Footer ---------- */
.foot {
  max-width: 1100px; margin: 40px auto 0;
  padding: 0 clamp(16px, 6vw, 72px) 48px;
  color: var(--muted); font-size: 15px;
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: baseline;
}
.block { border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.link { background: none; border: 0; padding: 0; color: var(--moss); text-decoration: underline; cursor: pointer; }

/* ---------- Dialogs ---------- */
dialog {
  border: 0; border-radius: 6px; padding: 0;
  background: var(--paper); color: var(--ink);
  width: min(560px, calc(100vw - 32px));
  box-shadow: 0 20px 60px rgba(30, 40, 34, .25);
}
dialog::backdrop { background: rgba(30, 40, 34, .45); }
dialog form { padding: 24px; display: grid; gap: 14px; }
dialog h3 { margin: 0; font-size: 24px; }
.hint { margin: 0; color: var(--muted); font-size: 15px; }
label { display: grid; gap: 4px; font-size: 15px; color: var(--muted); }
input, textarea {
  border: 1px solid var(--line); background: #fff; border-radius: 4px;
  padding: 8px 10px; color: var(--ink); font-size: 17px; width: 100%;
}
input[type=file] { background: transparent; border: 0; padding: 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row { grid-template-columns: 1fr; } }
.actions { display: flex; justify-content: flex-end; align-items: center; gap: 18px; }
.primary {
  background: var(--moss); color: var(--paper); border: 0; border-radius: 999px;
  padding: 8px 18px; cursor: pointer;
}
.primary:disabled { opacity: .6; cursor: progress; }
.status { margin: 0; min-height: 1em; font-size: 15px; color: var(--iron); }

.viewer {
  width: auto; max-width: 96vw; max-height: 94vh; background: transparent; box-shadow: none;
}
.viewer::backdrop { background: rgba(20, 26, 22, .9); }
.viewer form { padding: 0; position: fixed; top: 12px; right: 16px; }
.viewer img { max-width: 96vw; max-height: 94vh; border-radius: 3px; }
.close { background: none; border: 0; color: #fff; font-size: 34px; cursor: pointer; line-height: 1; }

@media (max-width: 480px) {
  .tabs-inner { gap: 4px 16px; }
  .tabs a { font-size: 16px; }
}