/* unlost.money — 失物招领 / 账本气质：纸白、墨黑、一个「找到了」的深绿，警示用琥珀。无外部资源。 */
:root {
  --paper: #f6f1e5;
  --paper-2: #efe8d6;
  --card: #fbf8ef;
  --ink: #1c1b17;
  --muted: #66604f;
  --rule: #d8cfb9;
  --rule-2: #c7bda3;
  --found: #1d5c39;
  --found-ink: #f6f1e5;
  --found-soft: #e1ecdb;
  --amber: #8f5300;
  --amber-soft: #f8e8c2;
  --focus: #1d5c39;
  --serif: "New York", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Songti SC", "Noto Serif CJK SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --maxw: 46rem;
  --wide: 62rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141310;
    --paper-2: #1b1a15;
    --card: #1a1914;
    --ink: #ece6d4;
    --muted: #a69f8a;
    --rule: #2f2c23;
    --rule-2: #413d31;
    --found: #7cc79b;
    --found-ink: #10150f;
    --found-soft: #17261c;
    --amber: #e3a845;
    --amber-soft: #2c2210;
    --focus: #7cc79b;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1rem/1.62 var(--sans); }
body { position: relative; }
body::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 30rem; pointer-events: none; opacity: .5;
  background-image: repeating-linear-gradient(to bottom, transparent 0, transparent 31px, var(--rule) 31px, var(--rule) 32px);
  mask-image: linear-gradient(to bottom, #000 0, transparent 100%); -webkit-mask-image: linear-gradient(to bottom, #000 0, transparent 100%); z-index: 0; }
.page { position: relative; z-index: 1; }
html[data-lang="en"] [data-l="zh"], html[data-lang="zh"] [data-l="en"] { display: none !important; }
a { color: var(--found); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 3px; }
code, .mono { font-family: var(--mono); font-size: .88em; white-space: nowrap; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.18; letter-spacing: -.01em; margin: 0; }
h2 { font-size: 1.55rem; margin-bottom: .6rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 .9rem; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.1rem; }
.wide { max-width: var(--wide); }
.small { font-size: .88rem; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0 .4rem; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; color: var(--ink); text-decoration: none; font: 600 1.45rem/1 var(--serif); letter-spacing: -.02em; }
.brand img { width: 2rem; height: 2rem; display: block; }
.lang { display: inline-flex; border: 1px solid var(--rule-2); border-radius: 999px; overflow: hidden; }
.lang button { appearance: none; border: 0; background: transparent; color: var(--muted); font: 600 .82rem var(--sans); padding: .38rem .8rem; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

/* hero */
.hero { padding: 2.4rem 0 1.6rem; }
.eyebrow { font: 600 .74rem var(--sans); text-transform: uppercase; letter-spacing: .14em; color: var(--found); margin-bottom: .9rem; }
.hero h1 { font-size: clamp(2.2rem, 7.4vw, 3.75rem); line-height: 1.06; letter-spacing: -.025em; max-width: 15ch; text-wrap: balance; }
html[data-lang="zh"] .hero h1 { word-break: keep-all; max-width: 12em; }
.hero .lead { font-size: 1.12rem; max-width: 36rem; margin: 1.1rem 0 1.5rem; color: var(--ink); }
.find { display: grid; gap: .6rem; }
.find label { font: 600 .8rem var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.field { display: flex; flex-wrap: wrap; gap: .6rem; }
.field .box { flex: 1 1 18rem; display: flex; border: 2px solid var(--ink); border-radius: 6px; background: var(--card); min-width: 0; }
.field input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); font: 500 1.05rem var(--mono); padding: .95rem .85rem; outline: none; }
.field input::placeholder { color: var(--muted); opacity: .75; }
.field .box:focus-within { outline: 3px solid var(--focus); outline-offset: 2px; }
.btn { appearance: none; border: 2px solid var(--ink); background: transparent; color: var(--ink); font: 600 .95rem var(--sans); border-radius: 6px; padding: .55rem .95rem; cursor: pointer; }
.btn:hover { background: var(--paper-2); }
.btn.primary { background: var(--found); border-color: var(--found); color: var(--found-ink); padding: .9rem 1.5rem; font-size: 1.05rem; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.paste { border: 0; border-left: 1px solid var(--rule-2); border-radius: 0 4px 4px 0; padding: 0 .9rem; font-size: .85rem; color: var(--muted); }
.btn[disabled] { opacity: .55; cursor: progress; }
.hint { font-size: .86rem; color: var(--muted); min-height: 1.3rem; }
.hint.err { color: var(--amber); font-weight: 600; }
.trust { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule-2); }
.trust li { display: grid; grid-template-columns: 1.7rem 1fr; gap: .1rem .7rem; padding: .8rem 0; border-bottom: 1px solid var(--rule); }
.trust svg { width: 1.3rem; height: 1.3rem; margin-top: .22rem; color: var(--found); }
.trust b { display: block; font: 600 1rem var(--sans); }
.trust span { color: var(--muted); font-size: .92rem; line-height: 1.5; }
@media (min-width: 52rem) { .trust { grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule-2); } .trust li { border-bottom: 0; padding-right: 1rem; } }

/* results */
#results { padding-top: 1rem; scroll-margin-top: 1rem; }
.sum { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .4rem 1rem; border-top: 3px double var(--ink); padding: 1rem 0 .7rem; }
.sum h2 { margin: 0; }
.sum .tot { font: 600 1.6rem var(--serif); font-variant-numeric: tabular-nums; }
.note { border-left: 4px solid var(--rule-2); background: var(--paper-2); padding: .8rem 1rem; border-radius: 0 6px 6px 0; margin: 0 0 1rem; font-size: .95rem; }
.note.warn { border-color: var(--amber); background: var(--amber-soft); }
.note.ok { border-color: var(--found); background: var(--found-soft); }
.card { background: var(--card); border: 1px solid var(--rule-2); border-left: 6px solid var(--found); border-radius: 4px 8px 8px 4px; padding: 1.1rem 1.15rem 1rem; margin: 0 0 1.1rem; box-shadow: 0 1px 0 var(--rule); }
.card.claimed { border-left-color: var(--found); background: var(--found-soft); }
.card header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .3rem 1rem; align-items: baseline; }
.card h3 { margin: 0; }
.val { font: 600 1.25rem var(--serif); font-variant-numeric: tabular-nums; white-space: nowrap; }
.assets { list-style: none; margin: .55rem 0 .2rem; padding: 0; }
.assets li { display: flex; justify-content: space-between; gap: 1rem; padding: .22rem 0; border-bottom: 1px dotted var(--rule-2); font-variant-numeric: tabular-nums; }
.assets .amt { font-family: var(--mono); font-size: .92rem; overflow-wrap: anywhere; }
.badges { display: flex; flex-wrap: wrap; gap: .4rem; margin: .7rem 0 .6rem; }
.badge { font: 600 .78rem/1.35 var(--sans); border: 1px solid var(--rule-2); border-radius: 8px; padding: .25rem .65rem; color: var(--muted); }
.badge.anyone { color: var(--found); border-color: var(--found); }
.badge.owner { color: var(--amber); border-color: var(--amber); }
.what { margin: .5rem 0 .7rem; }
h4 { font: 600 .78rem var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin: 1.1rem 0 .4rem; }
ol.steps { margin: 0; padding-left: 1.3rem; }
ol.steps > li { margin: 0 0 .65rem; padding-left: .2rem; }
ol.steps > li::marker { font-weight: 700; color: var(--found); }
.kv { margin: .4rem 0 .2rem; display: grid; gap: .35rem; }
.kv .row { display: grid; grid-template-columns: 1fr auto; gap: .5rem; align-items: start; border: 1px solid var(--rule); border-radius: 5px; background: var(--paper); padding: .4rem .55rem; }
.kv .lab { grid-column: 1 / -1; font: 600 .74rem var(--sans); color: var(--muted); }
.kv .v { font: .82rem/1.45 var(--mono); overflow-wrap: anywhere; max-height: 7rem; overflow: auto; scrollbar-width: thin; }
.what a { white-space: nowrap; }
.copy { appearance: none; border: 1px solid var(--rule-2); background: var(--card); color: var(--ink); border-radius: 5px; font: 600 .74rem var(--sans); padding: .25rem .55rem; cursor: pointer; align-self: start; }
.copy:hover { background: var(--paper-2); }
.foot { display: flex; flex-wrap: wrap; gap: .3rem 1.1rem; margin-top: .9rem; padding-top: .6rem; border-top: 1px dotted var(--rule-2); font-size: .82rem; color: var(--muted); }

/* sections */
section.sec { padding: 2.3rem 0 .6rem; }
section.sec > .wrap > h2 { border-top: 1px solid var(--rule-2); padding-top: 1.2rem; }
table.cov { width: 100%; border-collapse: collapse; font-size: .93rem; font-variant-numeric: tabular-nums; }
table.cov th { text-align: left; font: 600 .74rem var(--sans); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); border-bottom: 2px solid var(--ink); padding: .4rem .4rem; }
table.cov td { padding: .45rem .4rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.cov th.n, table.cov td.n { text-align: right; white-space: nowrap; }
.tablewrap { overflow-x: auto; }
ul.plain { padding-left: 1.2rem; margin: 0 0 .9rem; }
ul.plain li { margin: 0 0 .35rem; }
.callout { border: 2px solid var(--ink); border-radius: 8px; padding: 1rem 1.15rem; background: var(--card); margin: 0 0 1rem; }
.callout .addr { font-family: var(--mono); font-size: .9rem; overflow-wrap: anywhere; }
details.faq { border-top: 1px solid var(--rule-2); padding: .7rem 0; }
details.faq:last-of-type { border-bottom: 1px solid var(--rule-2); }
details.faq summary { cursor: pointer; font: 600 1.02rem var(--sans); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font: 400 1.4rem/1 var(--sans); color: var(--found); }
details.faq[open] summary::after { content: "−"; }
details.faq > div { padding-top: .5rem; color: var(--ink); }
footer.site { margin-top: 3rem; border-top: 3px double var(--ink); padding: 1.4rem 0 3rem; font-size: .9rem; color: var(--muted); }
footer.site b { color: var(--ink); }
.spinner { display: inline-block; width: 1rem; height: 1rem; border: 2px solid var(--rule-2); border-top-color: var(--found); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; margin-right: .5rem; }
@keyframes spin { to { transform: rotate(360deg); } }
.reveal { animation: rise .35s ease-out both; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .spinner { animation: none; border-top-color: var(--rule-2); }
  .reveal { animation: none; }
}
@media (max-width: 30rem) {
  .hero { padding-top: 1.6rem; }
  .btn.primary { width: 100%; }
  .card { padding: .95rem .85rem .85rem; }
}
.mt{margin-top:1rem}

.small.muted { overflow-wrap: anywhere; }