/* ============ 变量 ============ */
:root{
  --bg:#F5EFE4; --card:#FBF7EE; --text:#2A2622; --text2:#4A433C; --muted:#6B6158;
  --border:#D8CFBE; --accent:#537D96; --accent-h:#3F6179; --accent-l:rgba(83,125,150,.10);
  --ochre:#9D5F4D; --r:14px; --r-lg:18px;
  --safe-b:env(safe-area-inset-bottom,0px);
  --ease:cubic-bezier(.32,.72,.28,1);
}
/* 分区色：同一个土色系里取不同明度，保证压在纸底上是一家人 */
:root{
  --sp-0:#8C8272; --sp-1:#6E8B6A; --sp-2:#537D96;
  --sp-3:#B07A45; --sp-4:#7E6A9C;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
  overscroll-behavior-y:none;
}
.hidden{display:none!important}
button{font-family:inherit}

/* 顶栏共用 */
.home-head,.space-head{
  position:sticky;top:0;z-index:20;
  background:color-mix(in srgb,var(--bg) 90%,transparent);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  padding:12px 0 10px;display:flex;align-items:center;gap:10px;
}
.brand{font-size:20px;font-weight:600;letter-spacing:.08em;margin-right:auto}
.brand span{color:var(--ochre)}
.headacts{display:flex;gap:8px}
.iconbtn{
  border:1px solid var(--border);background:var(--card);color:var(--text2);
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;
  justify-content:center;cursor:pointer;flex:0 0 auto;transition:transform .12s var(--ease),background .12s;
}
.iconbtn:active{background:var(--accent-l);transform:scale(.93)}
.iconbtn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.headtitle{margin-right:auto;min-width:0}
.headname{font-size:17px;font-weight:600;line-height:1.3}
.headsub{font-size:12px;color:var(--muted);line-height:1.4}
.shell{max-width:640px;margin:0 auto;padding:0 16px calc(120px + var(--safe-b))}

/* ============ 第一级：封面墙 ============ */
.secline{display:flex;align-items:baseline;gap:8px;margin:6px 2px 12px;color:var(--muted);font-size:12px;letter-spacing:.08em}
.secline span{color:var(--text2);font-weight:500}
.secline b{margin-left:auto;font-weight:500;font-variant-numeric:tabular-nums}
.spaces{display:grid;grid-template-columns:1fr 1fr;gap:12px}
/* 搜索结果：卡片必须单列，两列会把时间流切成拼图 */
.spaces.one{grid-template-columns:1fr}
.spaces>.spacecard:nth-last-child(2):nth-child(odd){grid-column:1/-1}
@media (max-width:520px){.spaces{grid-template-columns:1fr 1fr}}

.spacecard{
  --sc:var(--sp-0);
  position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:15px 15px 13px;cursor:pointer;
  display:flex;flex-direction:column;gap:6px;overflow:hidden;
  transition:transform .16s var(--ease),border-color .16s;
}
.spacecard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--sc)}
.spacecard:active{transform:scale(.975);border-color:var(--sc)}
.sc-top{display:flex;align-items:center;gap:7px}
.sc-dot{width:8px;height:8px;border-radius:50%;background:var(--sc);flex:0 0 auto}
.sc-name{font-size:15px;font-weight:600;letter-spacing:.02em}
.sc-n{margin-left:auto;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.sc-prev{
  font-size:13px;color:var(--text2);line-height:1.55;min-height:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  word-break:break-word;
}
.sc-prev.none{color:var(--muted);opacity:.65}
.sc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px}
.sc-when{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.sc-add{
  width:26px;height:26px;border-radius:8px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--sc);background:transparent;
  cursor:pointer;transition:transform .12s var(--ease),background .12s;
}
.sc-add:active{transform:scale(.9);background:var(--accent-l)}
.sc-add svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round}
.wallfoot{display:flex;align-items:center;gap:10px;margin-top:16px;color:var(--muted);font-size:12px}
.wallfoot .iconbtn{width:30px;height:30px}

/* 搜索条 */
.searchwrap{display:none;padding-bottom:12px}
.searchwrap.on{display:block}
.searchwrap input{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--r);
  background:var(--card);color:var(--text);font-size:15px;font-family:inherit;outline:none;
}
.searchwrap input:focus{border-color:var(--accent)}

/* ============ 第二级：记录条 ============ */
.composer{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:11px 12px;margin-bottom:14px;
}
.composer textarea{
  width:100%;border:none;background:transparent;color:var(--text);font-family:inherit;
  font-size:15px;line-height:1.75;resize:none;outline:none;min-height:44px;max-height:220px;padding:2px 2px 0;
}
.composer textarea::placeholder{color:var(--muted)}
.thumbs{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.thumb{position:relative;width:62px;height:62px;border-radius:9px;overflow:hidden;border:1px solid var(--border);cursor:pointer}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb b{
  position:absolute;top:2px;right:2px;width:17px;height:17px;border-radius:9px;background:rgba(42,38,34,.72);
  color:#FBF7EE;font-size:12px;line-height:17px;text-align:center;cursor:pointer;font-weight:400;
}
.bar{display:flex;align-items:center;gap:8px;margin-top:10px;flex-wrap:nowrap}
.spacechips{display:flex;gap:6px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:none}
.spacechips::-webkit-scrollbar{display:none}
.chip{
  border:1px solid var(--border);background:transparent;color:var(--text2);
  padding:4px 11px;border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap;
  transition:background .12s,border-color .12s;
}
.chip:active{background:var(--accent-l)}
.chip.on{background:var(--accent-l);border-color:var(--accent);color:var(--accent-h);font-weight:500}
.send{
  border:none;background:var(--accent);color:#fff;padding:8px 16px;border-radius:11px;
  font-size:14px;font-weight:500;cursor:pointer;flex:0 0 auto;transition:transform .12s var(--ease),opacity .12s;
}
.send:active{transform:scale(.95)}
.send:disabled{opacity:.4;cursor:default;transform:none}
.filters{display:flex;gap:6px;overflow-x:auto;padding-bottom:12px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}

/* ============ 时间流 ============ */
.day{position:sticky;top:60px;z-index:15;background:var(--bg);padding:14px 2px 8px;display:flex;align-items:center;gap:8px}
.day b{font-size:13px;font-weight:600;color:var(--text2);letter-spacing:.02em;flex:0 0 auto}
.day i{font-style:normal;font-size:11px;color:var(--muted);flex:0 0 auto}
.day hr{flex:1;height:0;border:none;border-top:1px solid var(--border);margin:0}

.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:14px 15px;margin-bottom:12px;position:relative;
  transition:border-color .15s,transform .15s var(--ease);
}
.card:active{border-color:var(--sc,var(--border))}
.card.pinned{border-color:var(--sc,var(--accent));background:#FCF8F0}
.card.pinned::after{
  content:"";position:absolute;left:0;top:14px;width:3px;height:18px;
  border-radius:0 3px 3px 0;background:var(--sc,var(--accent));
}

/* 图片：1 张看细节，2 张并排，3+ 缩略图。不再一律切方图 */
.grid{display:grid;gap:5px;margin:2px 0 12px}
/* 图片改为 Blob 异步取，未到位时留纸色占位，到位后淡入，避免跳动 */
.grid img,.thumb img{opacity:0;transition:opacity .22s var(--ease)}
.grid img.ready,.thumb img.ready{opacity:1}
.grid img{width:100%;border-radius:10px;display:block;background:#EDE6D8;cursor:zoom-in;min-height:60px}
/* 单图收敛：一条碎片不许吃掉整屏 */
.grid.solo img{max-height:42vh;object-fit:contain;aspect-ratio:auto}
.grid.duo{grid-template-columns:1fr 1fr}
.grid.duo img{aspect-ratio:1;object-fit:cover}
.grid.poly{grid-template-columns:repeat(3,1fr)}
.grid.poly img{aspect-ratio:1;object-fit:cover}
.grid .more{
  display:flex;align-items:center;justify-content:center;aspect-ratio:1;border-radius:10px;
  background:var(--accent-l);color:var(--accent-h);font-size:14px;font-weight:500;cursor:zoom-in;
}

.body{
  white-space:pre-wrap;word-break:break-word;color:var(--text);
  font-size:16.5px;line-height:1.8;letter-spacing:.01em;
}
.body:empty{display:none}
.body a{color:var(--accent-h);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;word-break:break-all}
.tag{color:var(--ochre)}

.meta{display:flex;align-items:center;gap:7px;margin-top:11px;padding-top:10px;border-top:1px dashed var(--border);flex-wrap:wrap}
.pill{font-size:12px;padding:1px 9px;border-radius:999px;background:var(--accent-l);color:var(--accent-h);cursor:pointer;border:1px solid transparent}
.pill.tagp{background:transparent;border-color:var(--border);color:var(--text2)}
.pill.spacep{background:transparent;border-color:var(--sc,var(--border));color:var(--sc,var(--muted));font-weight:500}
.time{font-size:11.5px;color:var(--muted);margin-left:auto;font-variant-numeric:tabular-nums}
.acts{display:flex;gap:2px;margin-left:4px}
.acts button{
  border:none;background:transparent;color:var(--muted);cursor:pointer;padding:4px 7px;
  font-size:12px;border-radius:8px;transition:background .12s,color .12s;
}
.acts button:active{background:var(--accent-l);color:var(--accent-h)}

.empty{text-align:center;color:var(--muted);padding:56px 20px;font-size:14px;line-height:2}
.empty b{display:block;font-size:16px;color:var(--text2);margin-bottom:6px;font-weight:500}

/* ============ 编辑器 ============ */
.editscrim{position:fixed;inset:0;background:rgba(42,38,34,.34);z-index:50;animation:fade .18s var(--ease)}
.editor{
  position:fixed;left:50%;bottom:calc(14px + var(--safe-b));transform:translateX(-50%);
  width:min(640px,calc(100% - 24px));background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:11px 12px 12px;z-index:51;
  box-shadow:0 -1px 0 var(--border),0 12px 34px rgba(42,38,34,.14);
  animation:rise .22s var(--ease);
}
.editor-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.edlabel{font-size:12px;color:var(--muted);letter-spacing:.08em;flex:0 0 auto}
.editor textarea{
  width:100%;border:1px solid var(--border);border-radius:11px;background:var(--bg);
  color:var(--text);font-family:inherit;font-size:16.5px;line-height:1.8;resize:none;outline:none;
  min-height:96px;max-height:44vh;padding:10px 11px;
}
.editor textarea:focus{border-color:var(--accent)}
.editor-foot{display:flex;align-items:center;gap:8px;margin-top:10px}
.edhint{font-size:11.5px;color:var(--muted);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ghostbtn{
  border:1px solid var(--border);background:transparent;color:var(--text2);padding:8px 14px;
  border-radius:11px;font-size:14px;cursor:pointer;
}
.ghostbtn:active{background:var(--accent-l)}
@keyframes fade{from{opacity:0}}
@keyframes rise{from{transform:translate(-50%,18px);opacity:.4}}

/* ============ 大图 / toast ============ */
.lightbox{
  position:fixed;inset:0;z-index:70;background:rgba(24,21,18,.93);display:flex;
  align-items:center;justify-content:center;padding:16px;cursor:zoom-out;animation:fade .18s var(--ease);
}
.lightbox img{max-width:100%;max-height:100%;border-radius:8px;object-fit:contain}
.toast{
  position:fixed;left:50%;bottom:calc(28px + var(--safe-b));transform:translateX(-50%);
  background:#2A2622;color:#FBF7EE;padding:8px 16px;border-radius:999px;font-size:13px;
  opacity:0;transition:opacity .18s var(--ease);pointer-events:none;z-index:60;
}
.toast.on{opacity:.94}
.toast .tact{
  border:none;background:transparent;color:#8FB8CE;font-size:13px;font-weight:600;
  cursor:pointer;padding:0 0 0 10px;font-family:inherit;text-decoration:underline;
  text-underline-offset:3px;
}
.thumb.broken{border-color:var(--ochre)}
.thumb.broken::after{content:"缺";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ochre)}

/* ============ 同步状态 ============ */
#btnSync{position:relative}
#btnSync::after{
  content:"";position:absolute;top:5px;right:5px;width:6px;height:6px;border-radius:50%;
  background:var(--muted);opacity:0;transition:opacity .15s;
}
#btnSync.on::after{opacity:1;background:var(--sp-1)}
#btnSync.bad::after{opacity:1;background:var(--ochre)}
#btnSync.dim::after{opacity:1;background:var(--border)}
#btnSync.dim{opacity:.55}
#btnSync.busy svg{animation:spin .9s linear infinite}
#btnSync.bad svg{color:var(--ochre)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 设置面板 ============ */
.field{margin-bottom:9px}
.field label{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-bottom:4px}
.field input{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:11px;
  background:var(--bg);color:var(--text);font-family:inherit;font-size:14px;outline:none;
}
.field input:focus{border-color:var(--accent)}
.setnote{font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 10px}
.setnote code{
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;
  background:var(--accent-l);color:var(--accent-h);padding:1px 5px;border-radius:5px;
}