:root {
  --bg: #f6f5f2; --surface: #ffffff; --ink: #16181d; --muted: #6b6f78; --line: #e4e2dc;
  --accent: #1f4fd8; --accent-ink: #ffffff; --warn-bg: #fff4dc; --warn-ink: #7a4b00;
  --bad-bg: #fde8e8; --bad-ink: #9b1c1c; --ok-bg: #e6f4ea; --ok-ink: #1e6b36; --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111318; --surface: #1a1d24; --ink: #eceef2; --muted: #9aa0ab; --line: #2b2f38;
    --accent: #7fa2ff; --accent-ink: #0d1020; --warn-bg: #3a2e12; --warn-ink: #f5d38a;
    --bad-bg: #3b1717; --bad-ink: #f6b0b0; --ok-bg: #143021; --ok-ink: #9ee0b4; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", sans-serif; }
.top { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--bg); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 18px; } .brand span { font-weight: 400; color: var(--muted); font-size: 13px; margin-left: 8px; }
.credits { font-size: 13px; color: var(--muted); }
main { max-width: 560px; margin: 0 auto; padding: 16px 16px 96px; }
h1 { font-size: 22px; margin: 8px 0 4px; } h2 { font-size: 17px; margin: 20px 0 8px; }
p { margin: 6px 0; } .muted { color: var(--muted); font-size: 14px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 12px 0; }
.btn { display: block; width: 100%; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); font-size: 16px; font-weight: 600; cursor: pointer; text-align: center; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn + .btn { margin-top: 10px; }
.row > .btn + .btn { margin-top: 0; }
.row { display: flex; gap: 10px; } .row > * { flex: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.chip { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; font-size: 14px; }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
label.check { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; font-size: 15px; }
label.check input { width: 20px; height: 20px; margin-top: 2px; flex: none; }
.note { border-radius: 10px; padding: 10px 12px; font-size: 14px; margin: 8px 0; }
.note.warn { background: var(--warn-bg); color: var(--warn-ink); }
.note.bad { background: var(--bad-bg); color: var(--bad-ink); }
.note.ok { background: var(--ok-bg); color: var(--ok-ink); }
.frame { position: relative; border: 2px dashed var(--line); border-radius: var(--radius); aspect-ratio: 3/4;
  display: grid; place-items: center; overflow: hidden; background: var(--surface); }
.frame img.preview { width: 100%; height: 100%; object-fit: contain; }
.frame svg { width: 60%; height: 80%; opacity: .35; }
.frame .hint { position: absolute; bottom: 10px; left: 10px; right: 10px; text-align: center; font-size: 13px; color: var(--muted); }
.parts { list-style: none; padding: 0; margin: 8px 0; }
.parts li { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.tag { font-size: 12px; padding: 2px 8px; border-radius: 999px; }
.tag.ok { background: var(--ok-bg); color: var(--ok-ink); } .tag.bad { background: var(--bad-bg); color: var(--bad-ink); }
.tag.warn { background: var(--warn-bg); color: var(--warn-ink); }
.result img { width: 100%; border-radius: var(--radius); display: block; }
.labels { list-style: none; padding: 0; margin: 10px 0; }
.labels li { font-size: 13px; padding: 6px 10px; border-radius: 8px; background: var(--warn-bg); color: var(--warn-ink); margin: 6px 0; }
.labels li:first-child { background: var(--surface); color: var(--muted); border: 1px solid var(--line); }
.progress { height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; margin: 12px 0; }
.progress > div { height: 100%; background: var(--accent); width: 10%; transition: width .6s ease; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.sku { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--surface); cursor: pointer; text-align: left; padding: 0; color: var(--ink); }
.sku img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; background: #fff; }
.sku div { padding: 8px; font-size: 13px; }
.toast { position: fixed; left: 16px; right: 16px; bottom: 20px; max-width: 528px; margin: 0 auto; background: var(--ink); color: var(--bg);
  padding: 12px 14px; border-radius: 12px; font-size: 14px; z-index: 10; }
.thumbs { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
.thumb { flex: none; width: 96px; text-align: center; font-size: 12px; }
.thumb img { width: 96px; height: 128px; object-fit: cover; border-radius: 10px; border: 2px solid transparent; }
.thumb[aria-pressed="true"] img { border-color: var(--accent); }
.linkbtn { background: none; border: none; color: var(--accent); padding: 4px 0; font-size: 14px; cursor: pointer; }
input[type=text], select, textarea { width: 100%; padding: 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font-size: 15px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; } td, th { padding: 6px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }