/* 实验日志 Lab Log - 一页实验记录本：浅纸色上的深墨，深青色是操作，琥珀色是待确认，红色是不通过。每个状态都写成字（通过、注意、
 * 不通过、说明、待确认）- 颜色只是重复这个字。两种主题下每一对文字颜色都满足 WCAG 2.2 AA；焦点是 3px 的环。中文用系统字体，不加载网络字体。 */
:root {
  --bg: #f3f4f6; --grid: rgba(30, 40, 60, .045); --card: #ffffff; --ink: #141b26; --ink2: #313c4d; --muted: #556072; --line: #d2d8e1; --soft: #f1f4f8; --code: #f4f6f9;
  --accent: #1d4d4f; --accent-ink: #ffffff; --accent-soft: #e2efee; --copper: #8a5a00; --focus: #0b57d0;
  --fix: #b42318; --fix-bg: #fde8e6; --check: #7a4f00; --check-bg: #fdf3d6; --ok: #11603b; --ok-bg: #dff3e8; --info: #3f4b5c; --info-bg: #eef1f5; --link: #1a55b8; --alert: #ffffff; --alert-bg: #a51d14;
  --shadow: 0 1px 2px rgba(16, 20, 28, .05), 0 6px 18px rgba(16, 20, 28, .05);
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; --mono: ui-monospace, "SF Mono", Menlo, Consolas, "PingFang SC", "Microsoft YaHei", monospace;
}
[data-theme="dark"] {
  --bg: #0f1319; --grid: rgba(220, 230, 240, .035); --card: #171d26; --ink: #e8edf3; --ink2: #c5cdd8; --muted: #a0abba; --line: #343e4c; --soft: #1d2430; --code: #11161d;
  --accent: #8fd3cf; --accent-ink: #0c1f20; --accent-soft: #17302f; --copper: #f2b134; --focus: #9cc0ff;
  --fix: #ff8f85; --fix-bg: #3d1c1a; --check: #f3c065; --check-bg: #362a10; --ok: #6fd39e; --ok-bg: #143023; --info: #b3bdc9; --info-bg: #1e2630; --link: #9cc0ff; --alert: #ffffff; --alert-bg: #9b1c14;
  --shadow: 0 1px 2px rgba(0, 0, 0, .5);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1319; --grid: rgba(220, 230, 240, .035); --card: #171d26; --ink: #e8edf3; --ink2: #c5cdd8; --muted: #a0abba; --line: #343e4c; --soft: #1d2430; --code: #11161d;
    --accent: #8fd3cf; --accent-ink: #0c1f20; --accent-soft: #17302f; --copper: #f2b134; --focus: #9cc0ff;
    --fix: #ff8f85; --fix-bg: #3d1c1a; --check: #f3c065; --check-bg: #362a10; --ok: #6fd39e; --ok-bg: #143023; --info: #b3bdc9; --info-bg: #1e2630; --link: #9cc0ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); font: 16px/1.6 var(--sans); background-color: var(--bg); background-image: linear-gradient(var(--grid) 1px, transparent 1px); background-size: 100% 28px; }
a { color: var(--link); }
code { font-family: var(--mono); font-size: .9em; background: var(--soft); padding: 0 .25em; border-radius: 4px; }
.hidden { display: none !important; }
.small { font-size: .875rem; } .muted { color: var(--muted); } .mono { font-family: var(--mono); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* the header */
.top { display: flex; align-items: center; gap: 12px; padding: 8px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; }
.back { text-decoration: none; color: var(--muted); font-size: .9rem; min-height: 40px; display: inline-flex; align-items: center; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 1.05rem; } .logo { width: 26px; height: 26px; }
.session { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.chip-s { font: 600 .8rem var(--mono); padding: 4px 9px; border-radius: 6px; background: var(--soft); border: 1px solid var(--line); }
.btn { font: 600 .9rem var(--sans); padding: 8px 15px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; }
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn.solid { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.solid:hover:not(:disabled) { filter: brightness(1.08); color: var(--accent-ink); }
.btn.tiny { padding: 5px 11px; font-size: .82rem; min-height: 40px; }
.btn.run { font-size: 1.05rem; padding: 12px 22px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* the page */
main { max-width: 1140px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 26px 0 6px; }
.eyebrow { letter-spacing: .12em; font: 700 .8rem var(--sans); color: var(--accent); margin: 0 0 6px; }
h1 { font: 800 2.4rem/1.15 var(--sans); margin: 0 0 10px; letter-spacing: -.01em; }
h1 .sub { display: block; font: 500 1.15rem/1.4 var(--sans); color: var(--muted); margin-top: 8px; letter-spacing: 0; }
.lede { max-width: 840px; color: var(--ink2); }
.samples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.sample { font: 600 .85rem var(--sans); padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; min-height: 40px; text-align: left; }
.sample.on { background: var(--ink); color: var(--card); border-color: var(--ink); }
.sample.on::before { content: "\2713  "; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; margin: 16px 0; box-shadow: var(--shadow); min-width: 0; }
.ch { margin: 0 0 8px; font-size: 1.18rem; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.no { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--accent); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; font: 800 .8rem var(--mono); }
.free, .paid { font: 700 .74rem var(--sans); letter-spacing: .06em; padding: 3px 8px; border-radius: 6px; }
.free { background: var(--ok-bg); color: var(--ok); } .paid { background: var(--accent-soft); color: var(--accent); }
.kh { font-size: .9rem; letter-spacing: .06em; color: var(--muted); margin: 22px 0 8px; }
.note { background: var(--check-bg); border-left: 3px solid var(--check); padding: 8px 12px; border-radius: 6px; font-size: .9rem; color: var(--ink); }
.note.v-bad { background: var(--fix-bg); border-color: var(--fix); }
.ok-line { color: var(--ok); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 6px; align-items: center; }
.grid4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 14px; }
.grid4 .full { grid-column: 1 / -1; } .grid4 .wide { grid-column: span 2; }
.col { min-width: 0; }
.lab { display: block; font-weight: 600; font-size: .88rem; margin: 12px 0 4px; }
.hint { font-size: .8rem; color: var(--muted); margin: 4px 0 0; }
.inp { width: 100%; font: 1rem var(--sans); padding: 9px 11px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--ink); min-height: 44px; }
textarea.inp { min-height: 0; }
.inp.mono { font: .86rem/1.5 var(--mono); }
.inp:focus { border-color: var(--focus); }
a:focus-visible, button:focus-visible, .inp:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.rule { background: var(--soft); border-left: 3px solid var(--accent); padding: 8px 12px; border-radius: 0 6px 6px 0; margin: 10px 0 0; }

/* the board */
.sumrow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 8px 0; }
.sumcell { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: var(--soft); min-width: 0; display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.sumcell b { overflow-wrap: anywhere; }
.badge { font: 700 .86rem var(--sans); letter-spacing: .04em; padding: 5px 10px; border-radius: 6px; border: 2px solid var(--line); color: var(--muted); overflow-wrap: anywhere; }
.badge.v-ok { border-color: var(--ok); color: var(--ok); } .badge.v-warn { border-color: var(--check); color: var(--check); } .badge.v-bad { border-color: var(--fix); color: var(--fix); } .badge.v-none { color: var(--muted); }
.tag { font: 700 .74rem var(--sans); letter-spacing: .02em; padding: 2px 6px; border-radius: 4px; white-space: nowrap; display: inline-block; }
.t-ok { color: var(--ok); background: var(--ok-bg); } .t-bad { color: var(--fix); background: var(--fix-bg); } .t-warn { color: var(--check); background: var(--check-bg); } .t-info { color: var(--info); background: var(--info-bg); } .t-muted { color: var(--muted); background: var(--soft); } .t-alert { color: var(--alert); background: var(--alert-bg); }
.finds { list-style: none; padding: 0; margin: 0; }
.finds li { display: grid; grid-template-columns: 60px minmax(0, 1fr); gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: .9rem; align-items: baseline; }
.finds li:last-child { border-bottom: 0; }
.finds li .tag { justify-self: start; text-align: center; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; margin: 6px 0 10px; }
.tbl { width: 100%; border-collapse: collapse; font-size: .86rem; }
.tbl th, .tbl td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.tbl th { background: var(--soft); font-size: .8rem; letter-spacing: .04em; color: var(--muted); white-space: nowrap; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td span.mono { white-space: nowrap; }
.ph { margin: 18px 0 6px; font-size: 1rem; }
/* the module, numbered; code areas scroll inside their own box */
textarea.inp.code { white-space: pre; overflow: auto; overflow-wrap: normal; tab-size: 4; min-height: 110px; resize: vertical; font: .82rem/1.5 var(--mono); }
.codeview { margin: 6px 0; background: var(--code); border: 1px solid var(--line); border-radius: 8px; font: .8rem/1.55 var(--mono); max-height: 460px; overflow: auto; padding: 8px 0; white-space: pre; tab-size: 4; }
.codeview .cl { display: block; padding: 0 12px; min-width: max-content; }
.codeview .cl-fail { background: var(--fix-bg); box-shadow: inset 3px 0 0 var(--fix); }
.codeview .cl-warn { background: var(--check-bg); box-shadow: inset 3px 0 0 var(--check); }
.code-out { padding: 10px 12px; }
.cite { display: block; color: var(--muted); margin-top: 3px; font-style: italic; }

.tbl .k { display: flex; flex-direction: column; gap: 4px; align-items: flex-start; min-width: 8.5em; overflow-wrap: normal; }
.tbl .k .mono { overflow-wrap: anywhere; } .nowrap { white-space: nowrap; }
@media (max-width: 620px) { .tbl.wide { min-width: 620px; } .tbl .k { min-width: 7.5em; } }
/* the run and the reply */
.progress { background: var(--soft); border-radius: 10px; padding: 12px 14px; margin: 10px 0; }
.steps { list-style: none; padding: 0; margin: 8px 0; } .step { padding: 2px 0; color: var(--muted); font-size: .9rem; } .step.done { color: var(--ok); } .step.active { color: var(--ink); font-weight: 700; }
.step-ic { font-family: var(--mono); display: inline-block; width: 1em; }
.raw { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--code); border: 1px solid var(--line); padding: 12px; border-radius: 8px; font: .8rem/1.5 var(--mono); max-height: 460px; overflow: auto; margin: 0; }
pre.raw.short { max-height: 220px; }
.result { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 12px; }
.rhead { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.rnote { font-size: 1.05rem; font-weight: 600; } .result h3 { font-size: 1rem; margin: 18px 0 8px; }
.sh { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 16px 0 4px; } .sh h4 { margin: 0; font-size: 1rem; }
.answers, .recon, .saved { list-style: none; padding: 0; margin: 0; }
ol.answers { list-style: decimal; padding-left: 1.5em; }
.answers li { padding: 6px 0; border-bottom: 1px solid var(--line); }
.recon li { padding: 6px 10px; margin: 4px 0; border-radius: 6px; font-size: .9rem; } .recon li.warn { background: var(--fix-bg); } .recon li.info { background: var(--check-bg); }
li.none, p.none, .none { color: var(--muted); font-style: italic; background: transparent; }
.hrow { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.hinfo { display: flex; flex-direction: column; min-width: 0; flex: 1; } .hbtns { display: flex; gap: 6px; align-items: center; }
.about p { max-width: 860px; }
.foot { max-width: 1140px; margin: 0 auto; padding: 12px 16px 40px; color: var(--muted); font-size: .85rem; }
.foot a { display: inline-block; padding: 4px 0; }
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 20; max-width: calc(100vw - 32px); }
.toast { background: var(--ink); color: var(--card); padding: 10px 14px; border-radius: 8px; font-size: .9rem; box-shadow: var(--shadow); transition: opacity .5s; }
.toast.err { background: var(--fix); color: #fff; } [data-theme="dark"] .toast.err { color: #1a0605; } .toast.gone { opacity: 0; } .toast a { color: inherit; font-weight: 700; }

/* accessibility */
.skip { position: absolute; left: 12px; top: -60px; z-index: 50; background: var(--ink); color: var(--card); padding: 10px 14px; border-radius: 8px; font-weight: 700; text-decoration: none; }
.skip:focus, .skip:focus-visible { top: 12px; }
.card, .result, .hero { scroll-margin-top: 150px; }
main:focus, .result:focus { outline: none; }
main:focus-visible, .result:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; } }
@media (forced-colors: active) { .tag, .badge { border: 1px solid CanvasText; } }

@media (max-width: 900px) { .grid4 { grid-template-columns: 1fr 1fr; } .sumrow { grid-template-columns: 1fr; } }
@media (max-width: 620px) {
  h1 { font-size: 1.9rem; } .card { padding: 14px; } .back-t { display: none; }
  .top { gap: 8px; padding: 6px 12px; } .session .btn { padding: 6px 10px; }
  .grid4 { grid-template-columns: 1fr; } .grid4 .wide { grid-column: 1 / -1; }
  .finds li { grid-template-columns: 1fr; gap: 2px; }
  .tbl { font-size: .8rem; } .tbl th, .tbl td { padding: 6px 7px; }
}
@media print { .top, .samples, .actions, .skip, #entryCard, #notesCard, .about, .foot, .toasts, .runcard .exports, #priceNote, #handNote { display: none !important; } body { background: #fff; } .card { box-shadow: none; border: 0; } .raw { max-height: none; } }

/* this page */
.sub3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 14px; align-items: end; }
.sub3 .rate-hint { grid-column: 1 / -1; }
textarea.inp { line-height: 1.55; }
mark { background: var(--check-bg); color: var(--ink); padding: 0 2px; border-radius: 3px; box-shadow: inset 0 -2px 0 var(--check); }
.tbl tr.row-pending td { background: var(--check-bg); }
.prof { background: var(--soft); border-radius: 8px; padding: 8px 12px; overflow-x: auto; white-space: nowrap; margin: 6px 0; }
.codeview.yaml, .codeview.paths { white-space: pre; max-height: 420px; }
.codeview.paths { max-height: 300px; }
.pendlist { list-style: none; padding: 0; margin: 6px 0 10px; display: grid; gap: 8px; }
.pendlist li { border: 1px solid var(--line); border-left: 4px solid var(--check); border-radius: 8px; padding: 10px 12px; background: var(--card); min-width: 0; }
.pendlist .ph1 { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.pendlist .pq { margin: 6px 0 2px; overflow-wrap: anywhere; } .pendlist p.small { margin: 0; overflow-wrap: anywhere; }
.answers .tag { margin-right: 4px; }
@media (max-width: 620px) { .sub3 { grid-template-columns: 1fr; } .tbl.wide { min-width: 640px; } }