:root {
  --ink: #111;
  --sub: #666;
  --line: #e2e2e2;
  --head: #f6f6f6;
  --head-hl: #e4e4e4;
  --bg: #fff;
  --gone: #fafafa;
  --cw: 148px;
  --rel: #fff7d6;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); font-family: var(--font); -webkit-text-size-adjust: 100%; }
body { display: flex; flex-direction: column; overflow: hidden; }
button { font: inherit; color: inherit; cursor: pointer; }

/* 顶部标题 */
.top { padding: 12px 16px 10px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; }
.logo { width: 36px; height: 36px; flex: none; background: var(--ink); color: #fff; display: grid; place-items: center; font-weight: 900; font-size: 20px; border-radius: 4px; }
.top h1 { margin: 0; font-size: 18px; letter-spacing: 1px; }
.top p { margin: 2px 0 0; font-size: 12px; color: var(--sub); }
.top .links { margin-left: auto; display: flex; gap: 8px; flex: none; }
.btn { border: 1px solid var(--ink); background: var(--bg); padding: 6px 12px; font-size: 13px; border-radius: 4px; white-space: nowrap; }
.btn.primary { background: var(--ink); color: #fff; }
.btn.ghost { border-color: var(--line); }
.btn.danger { border-color: #b00; color: #b00; }
.btn:disabled { opacity: .4; cursor: default; }

/* 公式栏：显示选中格子的地址和完整内容，参照 WPS */
.fbar { display: flex; align-items: stretch; border-bottom: 1px solid var(--line); min-height: 34px; font-size: 13px; }
.fbar .addr { width: 60px; flex: none; display: grid; place-items: center; border-right: 1px solid var(--line); font-weight: 600; background: var(--head); }
.fbar .fx { width: 28px; flex: none; display: grid; place-items: center; color: #999; font-style: italic; border-right: 1px solid var(--line); }
.fbar .fc { flex: 1; padding: 7px 10px; white-space: pre-wrap; word-break: break-all; max-height: 92px; overflow-y: auto; line-height: 20px; }
.fbar .fc.hint { color: #999; }

/* 表格 */
.sheet { flex: 1; overflow: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; position: relative; }
.grid { border-collapse: separate; border-spacing: 0; table-layout: fixed; font-size: 13px; }
.grid th, .grid td { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 0; }
.grid th { background: var(--head); color: var(--sub); font-weight: 400; font-size: 12px; }
.grid thead th { position: sticky; z-index: 3; width: var(--cw); min-width: var(--cw); }
.grid td.fill { width: auto; min-width: 0; max-width: none; cursor: default; background-image: repeating-linear-gradient(to right, transparent 0 calc(var(--cw) - 1px), var(--line) calc(var(--cw) - 1px) var(--cw)); }
.grid .ch th { top: 0; height: 24px; }
.grid .hd th { top: 24px; height: 24px; color: var(--ink); font-weight: 600; }
.grid .rn { position: sticky; left: 0; z-index: 2; width: 36px; min-width: 36px; text-align: center; }
.grid thead .rn { z-index: 5; }
.grid td.ca, .grid th.ca { position: sticky; left: 36px; z-index: 1; width: 112px; min-width: 112px; max-width: 112px; }
.grid td.ca { background: var(--bg); font-weight: 600; box-shadow: 1px 0 0 #cfcfcf; }
.grid thead th.ca { z-index: 4; box-shadow: 1px 0 0 #cfcfcf; }
.grid td { width: var(--cw); min-width: var(--cw); max-width: var(--cw); height: 52px; background: var(--bg); position: relative; vertical-align: top; cursor: cell; }
.grid th.hl { background: var(--head-hl); color: var(--ink); }
.cv { margin: 6px 8px; line-height: 19px; max-height: 38px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; word-break: break-all; }

.grid td.sel { outline: 2px solid var(--ink); outline-offset: -2px; z-index: 2; }
.grid td.ca.sel { z-index: 3; }
.grid td.rel { background: var(--rel); }
.grid td.plus .cv { color: #aaa; font-size: 15px; text-align: center; line-height: 38px; display: block; }
.grid td.newrow .cv { font-size: 12px; color: #888; }
.grid td.plus:hover .cv, .grid td.plus.sel .cv { color: var(--ink); }
.grid td.gone { background: var(--gone); }
.grid td.gone .cv { color: #aaa; font-size: 12px; }
.grid td.gone-x { background: repeating-linear-gradient(135deg, #fafafa 0 6px, #f0f0f0 6px 7px); }
.grid td.mine::before { content: "我"; position: absolute; right: 3px; bottom: 3px; font-size: 10px; line-height: 1; color: #fff; background: #999; padding: 2px 3px; border-radius: 2px; }
.grid td.has-rep::after { content: ""; position: absolute; top: 0; right: 0; border-style: solid; border-width: 0 7px 7px 0; border-color: transparent var(--ink) transparent transparent; }
.grid td.fs-s .cv { font-size: 11px; line-height: 17px; }
.grid td.fs-l .cv { font-size: 16px; line-height: 19px; font-weight: 600; }
.grid td.fs-xl .cv { font-size: 22px; line-height: 38px; font-weight: 700; -webkit-line-clamp: 1; }
.grid td.sel.bg-k { outline-color: #aaa; }
.grid td.bg-k .rt { background: #333; border-color: #555; color: #ccc; }
.stylebar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-top: 10px; font-size: 12px; color: var(--sub); }
.stylebar .grp { display: flex; align-items: center; gap: 5px; }
.stylebar .sz { border: 1px solid #ccc; background: #fff; padding: 2px 8px; border-radius: 3px; font-size: 12px; }
.stylebar .sw { width: 22px; height: 22px; border-radius: 50%; border: 1px solid #ccc; padding: 0; }
.stylebar .sw.none { background: linear-gradient(135deg, #fff 45%, #d33 45% 55%, #fff 55%); }
.stylebar .on { outline: 2px solid var(--ink); outline-offset: 1px; }
.rt { display: inline-block; font-size: 11px; color: var(--sub); background: var(--head); border: 1px solid var(--line); padding: 0 3px; margin-right: 4px; border-radius: 2px; line-height: 15px; font-weight: 400; }

/* 底部操作栏 */
.actions { border-top: 1px solid var(--line); padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); display: flex; gap: 8px; align-items: center; min-height: 50px; background: var(--bg); }
.actions .tip { font-size: 12px; color: #999; }

/* 弹出输入层 */
.mask { position: fixed; inset: 0; background: rgba(0, 0, 0, .35); display: none; z-index: 50; align-items: flex-end; justify-content: center; }
.mask.open { display: flex; }
.panel { background: var(--bg); width: 100%; max-width: 560px; border-radius: 10px 10px 0 0; padding: 16px 16px calc(16px + env(safe-area-inset-bottom)); max-height: 88vh; overflow-y: auto; }
@media (min-width: 700px) { .mask { align-items: center; } .panel { border-radius: 8px; } }
.panel h3 { margin: 0 0 10px; font-size: 16px; }
.panel label { display: block; font-size: 12px; color: var(--sub); margin: 10px 0 4px; }
.panel input, .panel textarea { width: 100%; font: inherit; font-size: 15px; border: 1px solid #ccc; border-radius: 4px; padding: 8px 10px; }
.panel textarea { min-height: 120px; resize: vertical; }
.panel .quote { font-size: 13px; background: var(--head); border-left: 3px solid var(--ink); padding: 6px 10px; color: #333; white-space: pre-wrap; word-break: break-all; max-height: 90px; overflow: auto; }
.panel .count { text-align: right; font-size: 11px; color: #999; margin-top: 2px; }
.panel .note { font-size: 12px; color: #888; margin-top: 8px; line-height: 1.6; }
.panel .row { display: flex; gap: 8px; justify-content: flex-end; margin-top: 12px; }
.rules { font-size: 14px; line-height: 1.8; padding-left: 20px; margin: 0; }

.toast { position: fixed; left: 50%; top: 30%; transform: translateX(-50%); background: rgba(0, 0, 0, .85); color: #fff; padding: 10px 16px; border-radius: 6px; font-size: 14px; z-index: 99; display: none; max-width: 80vw; text-align: center; }

@media (max-width: 420px) {
  .top { padding: 10px 12px 8px; gap: 10px; }
  .top h1 { font-size: 17px; }
  .top p { font-size: 11px; }
  .logo { width: 32px; height: 32px; font-size: 18px; }
  .top .links { gap: 4px; }
  .top .links .btn { padding: 5px 7px; font-size: 12px; }
  .grid td.ca, .grid th.ca { width: 96px; min-width: 96px; max-width: 96px; }
  :root { --cw: 128px; }
  .actions { overflow-x: auto; gap: 6px; padding-left: 10px; padding-right: 10px; }
  .actions .btn { flex: none; padding: 6px 10px; }
}

/* 管理后台 */
.admin-wrap { flex: 1; display: flex; min-height: 0; }
.admin-wrap .sheet { flex: 1; }
.side { width: 360px; flex: none; border-left: 1px solid var(--line); overflow-y: auto; padding: 14px; font-size: 13px; display: none; }
.side.open { display: block; }
.side h4 { margin: 14px 0 6px; font-size: 13px; color: var(--sub); font-weight: 600; }
.side .kv { display: grid; grid-template-columns: 70px 1fr; gap: 4px 8px; }
.side .kv div:nth-child(odd) { color: #999; }
.side .content { white-space: pre-wrap; word-break: break-all; background: var(--head); padding: 8px; border-radius: 4px; line-height: 1.6; }
.side .ver { border-left: 2px solid var(--line); padding: 4px 8px; margin: 6px 0; }
.side .ver small { color: #999; display: block; }
.side .btns { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.side .ua { word-break: break-all; color: #888; font-size: 11px; }
.side .ucell { padding: 6px 0; border-bottom: 1px solid var(--line); cursor: pointer; }
.side .ucell b { margin-right: 6px; }
.side textarea { width: 100%; min-height: 90px; font: inherit; padding: 6px; }
.grid td.st-hidden { background: #f3f3f3; color: #999; }
.grid td.st-removed { background: #fbeaea; color: #b77; text-decoration: line-through; }
.row-removed td, .row-removed th { opacity: .55; }
.grid td.same-owner { box-shadow: inset 0 0 0 2px #888; }
.ow { float: right; font-size: 10px; color: #999; margin-left: 4px; font-weight: 400; }
.login { margin: 15vh auto; width: 280px; display: flex; flex-direction: column; gap: 10px; }
.login input { font: inherit; padding: 8px 10px; border: 1px solid #ccc; border-radius: 4px; }
@media (max-width: 760px) {
  .side { position: fixed; left: 0; right: 0; bottom: 0; width: auto; max-height: 62vh; border-left: 0; border-top: 1px solid #bbb; background: var(--bg); z-index: 20; box-shadow: 0 -4px 16px rgba(0, 0, 0, .12); }
}