:root {
  --bg: #F2F4EC; --surface: #FFFFFF; --ink: #17271D; --muted: #4E5E52; --line: #CBD3C4;
  --husk: #5F6E2A; --husk-ink: #FFFFFF; --flesh: #E3AE1F; --flesh-ink: #3A2C00; --soft: #E6EBDC;
  --warn-bg: #FFF4D6; --warn-ink: #5A4300; --bad: #A63D2A; --ok: #2F7A3E;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1813; --surface: #16231B; --ink: #E4ECE2; --muted: #A5B4A6; --line: #2C3D31;
    --husk: #A6B85A; --husk-ink: #142008; --flesh: #F0BE34; --flesh-ink: #2A1F00; --soft: #1C2B21;
    --warn-bg: #3A3010; --warn-ink: #F3DE9C; --bad: #E58B78; --ok: #7CC88A;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 17px; line-height: 1.5; }
body { min-height: 100vh; padding-bottom: env(safe-area-inset-bottom); }
[hidden] { display: none !important; }
h1 { font-size: 1.45rem; line-height: 1.3; margin: 0 0 .4rem; }
h2 { font-size: 1.1rem; margin: 1.6rem 0 .6rem; }
.muted { color: var(--muted); }

.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px; background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .01em; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.bar-right { display: flex; align-items: center; gap: 10px; }
.bar select { font: inherit; font-size: .9rem; padding: 4px 6px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.net { font-size: .8rem; display: inline-flex; align-items: center; gap: 5px; color: var(--muted); }
.net::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.net.off::before { background: var(--bad); }

main { max-width: 560px; margin: 0 auto; padding: 18px 16px 40px; }

.field { display: block; margin: 1.2rem 0; }
.field span { display: block; font-weight: 600; margin-bottom: 6px; }
.field input { width: 100%; font: inherit; font-size: 1.3rem; letter-spacing: .08em; padding: 12px 14px; border-radius: var(--radius);
  border: 2px solid var(--line); background: var(--surface); color: var(--ink); text-transform: uppercase; }
.field input:focus { outline: none; border-color: var(--husk); }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; color: var(--muted); margin: 0 0 1.2rem; }
.consent input { width: 22px; height: 22px; margin-top: 2px; flex: none; accent-color: var(--husk); }
.err { color: var(--bad); min-height: 1.5em; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: var(--radius); border: 2px solid var(--line); background: var(--surface); color: var(--ink); padding: 10px 16px; min-height: 48px; }
.btn.primary { background: var(--husk); border-color: var(--husk); color: var(--husk-ink); }
.btn.ghost { background: transparent; }
.btn.big { width: 100%; min-height: 56px; font-size: 1.05rem; }
.btn.huge { width: 100%; min-height: 120px; font-size: 1.3rem; flex-direction: column; gap: 6px; }
.btn.huge svg { width: 40px; height: 40px; }
.btn.small { min-height: 40px; padding: 6px 12px; font-size: .9rem; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; }
.link { background: none; border: 0; color: var(--husk); font: inherit; font-weight: 600; padding: 6px 0; cursor: pointer; }

.hello { margin-bottom: 14px; }
.capture { display: grid; gap: 10px; }
.tips { font-size: .9rem; margin: 10px 2px 0; }
.notice { background: var(--soft); border-radius: var(--radius); padding: 10px 14px; margin: 12px 0 0; font-size: .95rem;
  display: flex; gap: 10px; align-items: center; justify-content: space-between; }
.notice.warn { background: var(--warn-bg); color: var(--warn-ink); }

.history { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; }
.history li { display: flex; gap: 12px; align-items: center; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 8px; cursor: pointer; min-width: 0; }
.history img { width: 64px; height: 64px; object-fit: cover; border-radius: 10px; flex: none; background: var(--soft); }
.history .h-main { flex: 1; min-width: 0; overflow: hidden; }
.history .h-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history .h-sub { font-size: .85rem; color: var(--muted); }

.settings { margin-top: 2rem; border-top: 1px solid var(--line); padding-top: 12px; }
.settings summary { cursor: pointer; font-weight: 600; padding: 6px 0; }
.row { display: flex; gap: 10px; align-items: flex-start; margin: 10px 0 14px; font-size: .95rem; }
.row input { width: 22px; height: 22px; flex: none; accent-color: var(--husk); }

.photo { margin: 6px 0 14px; border-radius: var(--radius); overflow: hidden; background: #000; }
.photo canvas { display: block; width: 100%; height: auto; }
.verdict { border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px; }
.verdict h1 { margin: 0; }
.verdict p { margin: .3rem 0 0; }
.verdict.detected { background: var(--flesh); color: var(--flesh-ink); }
.verdict.possible { background: var(--warn-bg); color: var(--warn-ink); }
.verdict.none { background: var(--soft); }
.finding { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 10px; }
.finding header { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.finding h3 { margin: 0; font-size: 1.1rem; }
.badge { font-size: .78rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; }
.badge.detected { background: var(--flesh); color: var(--flesh-ink); }
.badge.possible { background: transparent; border: 1.5px dashed var(--muted); color: var(--muted); }
.finding .cnt { font-size: .85rem; color: var(--muted); margin-left: auto; }
.finding dt { font-weight: 600; font-size: .9rem; margin-top: 8px; color: var(--muted); }
.finding dd { margin: 2px 0 0; }
.trunk { border-left: 4px solid var(--flesh); background: var(--soft); border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; }
.trunk strong { display: block; margin-bottom: 4px; }
.spinner { display: flex; align-items: center; gap: 10px; padding: 14px 0; color: var(--muted); }
.spinner::before { content: ""; width: 20px; height: 20px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--husk); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.fb { margin: 18px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.fb-q { font-weight: 600; margin: 0 0 8px; }
.fb-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.fb-row .btn.on { background: var(--husk); color: var(--husk-ink); border-color: var(--husk); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }
.chip { font: inherit; font-size: .9rem; padding: 8px 12px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; }
.chip.on { background: var(--husk); color: var(--husk-ink); border-color: var(--husk); }
.disclaimer { font-size: .85rem; margin-top: 18px; }