:root {
  --green-900: #123524;
  --green-800: #1b4d34;
  --green-700: #246b45;
  --green-600: #2e8b57;
  --green-500: #46a86e;
  --green-100: #e6f4ea;
  --green-50: #f3faf5;
  --ink: #22302a;
  --ink-2: #5a6b62;
  --line: #dfe8e2;
  --card: #ffffff;
  --snd-bg: #f2f7f3;
  --amber: #c98a2b;
  --snd-red: #c2503f;
  --radius: 14px;
  --shadow: 0 6px 20px rgba(18, 53, 36, .08);
  --shadow-lg: 0 16px 44px rgba(18, 53, 36, .16);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--snd-bg);
  color: var(--ink);
  font: 15px/1.6 "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green-700); text-decoration: none; }
a:hover { color: var(--green-600); }

/* ---------- 顶栏 ---------- */
.topbar {
  background: linear-gradient(120deg, var(--green-900), var(--green-700) 60%, var(--green-600));
  color: #fff;
  box-shadow: var(--shadow);
  position: sticky; top: 0; z-index: 30;
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.brand-leaf { font-size: 24px; }
.brand-text { font-size: 19px; font-weight: 700; letter-spacing: 1px; }
.brand-text em { font-style: normal; font-size: 12px; opacity: .75; margin-left: 8px; font-weight: 400; }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a {
  color: rgba(255,255,255,.85); padding: 7px 14px; border-radius: 999px;
  font-size: 14px; transition: .18s;
}
.nav a:hover { background: rgba(255,255,255,.14); color: #fff; }
.nav a.active { background: rgba(255,255,255,.22); color: #fff; font-weight: 600; }

/* ---------- 布局 ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 24px 20px 60px; }
.footer { text-align: center; color: var(--ink-2); font-size: 13px; padding: 24px 0 40px; }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head h1 { margin: 0 0 4px; font-size: 24px; }
.page-head p { margin: 0; color: var(--ink-2); font-size: 14px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- 统计 ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
}
.stat .num { font-size: 22px; font-weight: 700; color: var(--green-700); }
.stat .label { font-size: 12.5px; color: var(--ink-2); }

/* ---------- 工具条 ---------- */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 18px; }
.toolbar .grow { flex: 1 1 220px; min-width: 180px; }
input[type=text], input[type=search], input[type=date], input[type=number], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 14px; background: #fff; color: var(--ink); font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--green-100); border-color: var(--green-500); }
textarea { resize: vertical; min-height: 70px; }
label.field { display: block; margin-bottom: 12px; }
label.field > span { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 5px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; color: var(--ink); cursor: pointer; font-size: 14px; font-family: inherit;
  transition: .16s; white-space: nowrap;
}
.btn:hover { border-color: var(--green-500); color: var(--green-700); }
.btn-primary { background: var(--green-600); border-color: var(--green-600); color: #fff; }
.btn-primary:hover { background: var(--green-700); border-color: var(--green-700); color: #fff; }
.btn-danger { color: var(--snd-red); border-color: #f0d5cf; }
.btn-danger:hover { background: #fdf1ef; border-color: var(--snd-red); color: var(--snd-red); }
.btn-sm { padding: 6px 11px; font-size: 13px; border-radius: 8px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- 声音卡片 ---------- */
.sound-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.sound-card { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.sound-card .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.sound-card h3 { margin: 0; font-size: 17px; }
.sound-card .species { font-size: 13px; color: var(--ink-2); font-style: italic; }
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px;
  background: var(--green-100); color: var(--green-700); border: 1px solid #cfe8d8;
}
.badge-warn { background: #fdf3e2; color: var(--amber); border-color: #f2e0bd; }
.meta-line { font-size: 12.5px; color: var(--ink-2); display: flex; gap: 12px; flex-wrap: wrap; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: 12px; background: var(--green-50); border: 1px dashed #cfe0d4; color: var(--green-700); padding: 2px 8px; border-radius: 6px; }
.note-text { font-size: 13px; color: var(--ink-2); background: var(--green-50); border-radius: 8px; padding: 8px 10px; max-height: 62px; overflow: auto; }
.card-actions { display: flex; gap: 8px; margin-top: auto; }
audio { width: 100%; height: 38px; }
video { width: 100%; max-height: 320px; display: block; background: #000; border-radius: 10px; }
.video-tip { font-size: 12px; color: var(--ink-2); margin-top: -4px; }

/* ---------- 空态 & 分页 ---------- */
.empty { text-align: center; padding: 60px 20px; color: var(--ink-2); }
.empty .emoji { font-size: 46px; margin-bottom: 10px; }
.empty-page { text-align: center; padding: 90px 20px; }
.empty-emoji { font-size: 64px; margin-bottom: 12px; }
.pager { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 22px; }
.pager .info { color: var(--ink-2); font-size: 13px; }

/* ---------- 详情 ---------- */
.detail-grid { display: grid; grid-template-columns: 1.35fr .9fr; gap: 18px; }
@media (max-width: 900px) { .detail-grid { grid-template-columns: 1fr; } }
.panel { padding: 18px; }
.panel h3 { margin: 0 0 12px; font-size: 16px; }
.viz-box { background: #0f1c16; border-radius: 10px; padding: 8px; margin-bottom: 10px; }
.viz-box canvas { width: 100%; display: block; border-radius: 6px; }
.viz-label { color: #9fc4ac; font-size: 12px; margin: 0 0 6px 4px; display: flex; justify-content: space-between; }
.viz-wrap { position: relative; cursor: pointer; }
.viz-cursor {
  position: absolute; top: 0; bottom: 0; width: 2px; margin-left: -1px;
  background: #ffd166; box-shadow: 0 0 6px rgba(255, 209, 102, .9); pointer-events: none; display: none;
}
.kv { display: grid; grid-template-columns: 88px 1fr; gap: 8px 10px; font-size: 14px; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; word-break: break-all; }

/* ---------- 识别 ---------- */
.drop {
  border: 2px dashed #bcd8c6; border-radius: var(--radius); background: var(--green-50);
  padding: 34px 20px; text-align: center; cursor: pointer; transition: .18s;
}
.drop:hover, .drop.over { border-color: var(--green-600); background: var(--green-100); }
.drop .big { font-size: 34px; }
.drop .hint { color: var(--ink-2); font-size: 13px; }
.identify-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 900px) { .identify-grid { grid-template-columns: 1fr; } }

.result-card { display: flex; gap: 14px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: 12px; align-items: center; }
.result-card .rank { width: 34px; height: 34px; flex: none; border-radius: 10px; background: var(--green-100); color: var(--green-700); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.result-card .body { flex: 1; min-width: 0; }
.result-card .title { font-weight: 600; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.result-card .sub { font-size: 12.5px; color: var(--ink-2); }
.score-box { width: 116px; flex: none; text-align: right; }
.score-box .pct { font-size: 22px; font-weight: 700; color: var(--green-600); }
.bar { height: 8px; border-radius: 999px; background: #e8efe9; overflow: hidden; margin-top: 6px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--green-500), var(--green-700)); }
.breakdown { display: flex; gap: 10px; font-size: 12px; color: var(--ink-2); margin-top: 6px; flex-wrap: wrap; }

/* ---------- 智能分层 ---------- */
.layer-toolbar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 13px; color: var(--ink-2); margin-bottom: 4px;
}
.layer-toolbar .grow { flex: 1; }
.layer-toolbar label { display: inline-flex; align-items: center; gap: 6px; }
.layer-toolbar input[type="range"] { width: 96px; }
.layer-row { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; margin-bottom: 8px; background: #fff; }
.layer-row:hover { border-color: #cfe0d4; }
.layer-row.hl { border-color: var(--green-500); box-shadow: 0 0 0 2px rgba(63,157,90,.14); }
.layer-legend { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 2px 0 10px; }
.legend-chip {
  display: inline-flex; align-items: center; gap: 5px; font-size: 12px; cursor: pointer;
  padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line); background: #fbfdfb; color: var(--ink-2);
}
.legend-chip:hover { border-color: var(--green-500); color: var(--green-700); background: var(--green-50); }
.legend-chip.on { background: var(--green-50); border-color: var(--green-500); color: var(--green-700); }
.legend-note { font-size: 12px; color: var(--ink-2); opacity: .85; }
.layer-head { display: flex; align-items: center; gap: 10px; }
.layer-dot { width: 14px; height: 14px; border-radius: 4px; flex: none; }
.layer-title { flex: 1; min-width: 0; }
.layer-title b { color: var(--ink); }
.layer-sub { font-size: 12.5px; color: var(--ink-2); margin-top: 2px; }
.layer-segs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); }
.seg-chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; cursor: pointer;
  padding: 4px 9px; border-radius: 8px; border: 1px solid var(--line); background: #fbfdfb; color: var(--ink-2);
}
.seg-chip.on { background: var(--green-50); border-color: var(--green-500); color: var(--green-700); }
.seg-chip .seg-meta { opacity: .75; }

.layer-canvas { width: 100%; height: 104px; display: block; margin: 6px 0 10px; cursor: crosshair; }
.layer-panel-title { font-size: 13px; font-weight: 600; margin: 14px 0 6px; }
.layer-hint { font-size: 12.5px; color: var(--ink-2); margin: 10px 0 0; line-height: 1.7; }
.btn-xs { padding: 1px 6px; font-size: 11.5px; border-radius: 6px; line-height: 1.6; }
.piece-row { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; margin-bottom: 8px; background: #fbfdfb; }
.piece-row.hl { border-color: #2f6fb0; box-shadow: 0 0 0 2px rgba(47,111,176,.14); }
.piece-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.piece-head .grow { flex: 1; }
.piece-kind { font-size: 12px; color: var(--ink-2); }
.piece-kind.manual { color: #2f6fb0; }
.piece-line { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-2); margin-top: 4px; }
.piece-lbl { width: 32px; color: var(--ink); }
.piece-in { width: 84px; padding: 3px 6px; font-size: 12.5px; border: 1px solid var(--line); border-radius: 6px; }
.piece-len { margin-left: auto; opacity: .8; }
.layer-play.on, .piece-play.on { background: var(--green-50); border-color: var(--green-500); color: var(--green-700); }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(12, 28, 20, .5); display: flex;
  align-items: flex-start; justify-content: center; padding: 40px 16px; overflow: auto; z-index: 60;
}
.modal {
  background: #fff; border-radius: var(--radius); width: 100%; max-width: 620px;
  box-shadow: var(--shadow-lg); animation: pop .18s ease;
}
@keyframes pop { from { transform: translateY(-8px); opacity: 0; } }
.modal header { padding: 16px 20px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; }
.modal header h3 { margin: 0; font-size: 17px; }
.modal .body { padding: 18px 20px; }
.modal footer { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }
.close-x { cursor: pointer; border: none; background: none; font-size: 22px; color: var(--ink-2); line-height: 1; }

/* ---------- 提示 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: var(--green-900); color: #fff; padding: 10px 20px; border-radius: 999px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: .22s; z-index: 90;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.err { background: var(--snd-red); }