:root {
  --ink: #172522;
  --muted: #687773;
  --paper: #f4f1e9;
  --panel: #fffdf8;
  --line: #d9d5ca;
  --green: #174d3d;
  --green-soft: #e3eee8;
  --orange: #ee6b2f;
  --red: #a94334;
  --red-soft: #fff0ed;
  --shadow: 0 18px 45px rgba(29, 44, 40, .08);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 5%, rgba(238,107,47,.12), transparent 22rem),
    linear-gradient(rgba(23,77,61,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,77,61,.025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 28px 28px, 28px 28px, auto;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

button, textarea { font: inherit; }
button { cursor: pointer; }

.shell { width: min(1420px, calc(100% - 40px)); margin: 0 auto; padding: 54px 0 70px; }
.hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.eyebrow { margin: 0 0 9px; color: var(--orange); font: 700 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .17em; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-family: Georgia, "Noto Serif SC", serif; font-size: clamp(37px, 5vw, 62px); font-weight: 500; letter-spacing: -.04em; }
.intro { margin-bottom: 0; color: var(--muted); font-size: 16px; }
.privacy { display: flex; align-items: center; gap: 9px; padding: 11px 15px; border: 1px solid #bdd0c7; border-radius: 99px; color: var(--green); background: rgba(255,255,255,.56); font-size: 13px; white-space: nowrap; }
.privacy-dot { width: 8px; height: 8px; border-radius: 50%; background: #38a16b; box-shadow: 0 0 0 4px rgba(56,161,107,.13); }

.workspace { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 18px; align-items: stretch; }
.panel { min-width: 0; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); box-shadow: var(--shadow); overflow: hidden; }
.input-panel, .output-panel { min-height: 620px; height: 100%; padding: 25px; }
.input-panel, .output-panel { display: flex; flex-direction: column; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 19px; }
.panel-head > div { display: flex; align-items: center; gap: 12px; }
.panel-head h2 { margin: 0; font-family: Georgia, "Noto Serif SC", serif; font-size: 21px; font-weight: 600; }
.step { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: white; background: var(--green); font: 700 11px/1 ui-monospace, monospace; }
.text-btn { padding: 6px 2px; border: 0; color: var(--muted); background: transparent; }
.text-btn:hover { color: var(--orange); }
.input-actions { display: flex; align-items: center; gap: 12px; }
.upload-btn { padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px; color: var(--green); background: #fff; font-size: 12px; font-weight: 700; cursor: pointer; }
.upload-btn:hover { border-color: var(--green); background: var(--green-soft); }

textarea { width: 100%; height: 436px; resize: vertical; padding: 18px; border: 1px solid var(--line); border-radius: 12px; outline: none; color: #293632; background: #faf8f2; font: 12px/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; transition: border-color .2s, box-shadow .2s; }
textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(23,77,61,.1); }
textarea::placeholder { color: #9b9b93; }
.input-panel > #sourceInput { flex: 1; height: auto; min-height: 420px; }
.input-footer { display: flex; justify-content: space-between; margin: 9px 2px 18px; color: var(--muted); font-size: 11px; }
.file-name { max-width: 45%; overflow: hidden; color: var(--green); text-overflow: ellipsis; white-space: nowrap; }
.mini-btn { padding: 7px 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--green); background: #fff; font-size: 10px; font-weight: 700; }
.mini-btn:hover:not(:disabled) { border-color: var(--green); background: var(--green-soft); }
.mini-btn:disabled { opacity: .45; cursor: not-allowed; }
.mini-btn.accent { border-color: var(--green); color: #fff; background: var(--green); }
.mini-btn.accent:hover:not(:disabled) { color: #fff; background: #0d3d2f; }
.check-link { display: inline-flex; align-items: center; text-decoration: none; }
.primary-btn { width: 100%; display: flex; justify-content: space-between; padding: 15px 18px; border: 0; border-radius: 10px; color: #fff; background: var(--green); font-weight: 700; transition: transform .2s, background .2s; }
.primary-btn:hover { background: #0d3d2f; transform: translateY(-1px); }
.primary-btn:focus-visible, .secondary-btn:focus-visible, .copy-one:focus-visible { outline: 3px solid rgba(238,107,47,.35); outline-offset: 2px; }

.badge { padding: 6px 10px; border-radius: 99px; color: var(--muted); background: #efede6; font-size: 11px; font-weight: 700; }
.badge.success { color: var(--green); background: var(--green-soft); }
.badge.warning { color: var(--red); background: var(--red-soft); }
.empty-state { flex: 1; min-height: 490px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px dashed #d5d0c4; border-radius: 12px; color: var(--muted); text-align: center; }
.empty-icon { margin-bottom: 22px; color: #9aae9f; font: 400 36px/1 Georgia, serif; }
.empty-state p { margin-bottom: 6px; color: var(--ink); font-weight: 700; }
.empty-state span { font-size: 12px; }
.result-area { min-width: 0; }
.error-summary { margin-bottom: 14px; padding: 12px 14px; border: 1px solid #efc8c0; border-radius: 10px; color: var(--red); background: var(--red-soft); font-size: 12px; line-height: 1.55; }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 7px; margin-bottom: 14px; }
.report-section { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.stat { padding: 10px 8px; border: 1px solid var(--line); border-radius: 9px; background: #faf8f2; text-align: center; }
.stat strong { display: block; margin-bottom: 2px; color: var(--ink); font: 600 19px/1 Georgia, serif; }
.stat span { color: var(--muted); font-size: 10px; }
.report-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; font-size: 12px; }
.report-filters { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }
.filter-btn { padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: #fff; font-size: 10px; cursor: pointer; }
.filter-btn:hover, .filter-btn.active { border-color: var(--green); color: var(--green); background: var(--green-soft); }
.report-list { display: grid; gap: 6px; max-height: 165px; margin-bottom: 15px; overflow-y: auto; }
.report-row { display: grid; grid-template-columns: 45px minmax(100px, .7fr) 58px minmax(150px, 1.5fr); gap: 8px; align-items: center; padding: 8px 10px; border-radius: 7px; background: #f5f3ed; font-size: 10px; }
.report-row[hidden] { display: none !important; }
.report-id { color: var(--muted); font-family: ui-monospace, monospace; }
.report-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status { width: max-content; padding: 3px 6px; border-radius: 99px; font-weight: 700; }
.status.success { color: var(--green); background: var(--green-soft); }
.status.failed { color: var(--red); background: var(--red-soft); }
.status.duplicate { color: #93601f; background: #fff1d7; }
.report-reason { overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.result-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.result-toolbar p { margin: 0; color: var(--muted); font-size: 12px; }
.toolbar-actions { display: flex; gap: 8px; }
.secondary-btn, .copy-one { border: 1px solid var(--line); border-radius: 8px; color: var(--green); background: #fff; font-size: 12px; font-weight: 700; }
.secondary-btn { padding: 9px 12px; }
.secondary-btn:hover, .copy-one:hover { border-color: var(--green); background: var(--green-soft); }
.result-list { display: grid; gap: 12px; max-height: 482px; overflow: auto; padding-right: 3px; }
.result-card { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #faf8f2; }
.result-card-head { display: flex; justify-content: space-between; align-items: center; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.result-card-head span { color: var(--green); font: 700 11px/1 ui-monospace, monospace; }
.card-actions { display: flex; gap: 6px; }
.copy-one { padding: 6px 9px; }
pre { margin: 0; padding: 14px; overflow-x: auto; color: #273732; font: 11px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-all; }

.extractors { margin-top: 18px; }
.extractor-grid { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 18px; align-items: stretch; }
.extractor-card { min-width: 0; height: 100%; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); box-shadow: var(--shadow); }
.extractor-card-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.extractor-title { display: flex; align-items: center; gap: 11px; }
.extractor-title strong { display: block; margin-bottom: 3px; font: 600 17px/1.1 Georgia, "Noto Serif SC", serif; }
.extractor-title small { display: block; color: var(--muted); font: 700 9px/1 ui-monospace, monospace; letter-spacing: .12em; }
.extractor-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; color: var(--green); background: var(--green-soft); font: 800 13px/1 ui-monospace, monospace; }
.rt-card .extractor-mark { color: #9a481f; background: #fbe5d9; }
.extractor-badge { flex: none; padding: 5px 8px; border-radius: 99px; color: var(--muted); background: #efede6; font-size: 10px; }
.extractor-summary { margin: 14px 0 10px; color: var(--muted); font-size: 11px; }
.extractor-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
textarea.extractor-output { height: 132px; min-height: 90px; resize: vertical; padding: 12px; font-size: 10px; }

.mapping { display: grid; grid-template-columns: 210px 1fr; gap: 28px; margin-top: 18px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,253,248,.68); }
.mapping h2 { margin-bottom: 0; font-family: Georgia, "Noto Serif SC", serif; font-size: 22px; }
.mapping-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.map-item { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel); color: var(--muted); font-size: 11px; }
.map-item code { color: var(--ink); font-size: 11px; }
.map-item.accent { border-color: #bdcfc7; background: var(--green-soft); }
.map-item.accent span { color: var(--orange); font-weight: 800; }
.mapping-note { grid-column: 2; margin: 2px 0 0; color: var(--muted); font-size: 11px; }
.toast { position: fixed; left: 50%; bottom: 28px; z-index: 5; padding: 11px 16px; border-radius: 9px; color: white; background: var(--ink); box-shadow: 0 10px 30px rgba(0,0,0,.18); font-size: 13px; opacity: 0; transform: translate(-50%, 12px); pointer-events: none; transition: .22s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 900px) {
  .shell { width: min(100% - 24px, 700px); padding-top: 28px; }
  .hero { align-items: flex-start; flex-direction: column; }
  .workspace { grid-template-columns: 1fr; }
  .input-panel, .output-panel { min-height: auto; height: auto; padding: 19px; }
  .input-panel > #sourceInput { min-height: 360px; }
  .extractor-grid { grid-template-columns: 1fr; }
  .mapping { grid-template-columns: 1fr; }
  .mapping-note { grid-column: 1; }
}

@media (max-width: 560px) {
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .report-head { align-items: flex-start; flex-direction: column; }
  .report-row { grid-template-columns: 40px 1fr 58px; }
  .report-reason { grid-column: 2 / 4; }
  .mapping-grid { grid-template-columns: 1fr; }
  .result-toolbar { align-items: flex-start; flex-direction: column; }
  .toolbar-actions { width: 100%; }
  .secondary-btn { flex: 1; }
  .input-footer span:last-child { display: none; }
}