/* 与风景足迹共用视觉语言。仅覆盖呈现，保留原有状态类和交互。 */
:root {
  --primary: #315a49;
  --primary-light: #567962;
  --primary-dark: #263d34;
  --bg: #f6f4ed;
  --bg-card: #fbfaf6;
  --bg-soft: #e9ede3;
  --text: #263d34;
  --text-2: #59685c;
  --text-3: #7b8179;
  --atlas-line: #e1e3d9;
  --atlas-serif: Georgia, "Noto Serif SC", "Songti SC", SimSun, serif;
  --radius: 6px;
  --shadow: 0 3px 12px #263d3408;
  --shadow-lg: 0 12px 36px #263d341c;
}
.app-bg { background: var(--bg); font-size: 13px; }
#app { height: 100vh; height: 100dvh; }
.app-header {
  min-height: 88px; flex-shrink: 0; flex-wrap: wrap;
  padding: 17px 28px; gap: 14px 26px;
  background: var(--bg-card); border-bottom: 1px solid var(--atlas-line);
  box-shadow: none; backdrop-filter: none;
}
.atlas-brand { flex-shrink: 0; }
.logo-badge { width: 43px; height: 43px; border-radius: 50%; background: var(--primary); color: #eee8ce; box-shadow: none; }
.app-title { font: 23px/1.35 var(--atlas-serif); letter-spacing: 2px; color: var(--text); }
.brand-caption { margin: 5px 0 0; font-size: 8px; letter-spacing: 2.4px; color: var(--text-3); }
.atlas-stats { margin-right: auto; gap: 8px; }
.stat-chip { padding: 5px 10px; background: transparent; border: 1px solid var(--atlas-line); font-size: 11px; color: var(--text-2); font-weight: 400; }
.stat-pending { color: #927238; background: #f4efdf; border-color: #e9dfc4; }
.stat-confirm { color: #926147; background: #f6ebdf; border-color: #ead8c4; }
.atlas-actions { flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.btn { border-radius: 5px; padding: 8px 11px; font-size: 12px; box-shadow: none; line-height: 1.5; white-space: nowrap; }
.btn:hover { transform: none; box-shadow: none; }
.btn-primary, .btn-ai { background: var(--primary); color: #fff; border: 1px solid var(--primary); }
.btn-primary:hover, .btn-ai:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; border: 1px solid var(--atlas-line); color: var(--text-2); }
.btn-ghost:hover { background: var(--bg-soft); border-color: #bccab9; color: var(--primary-dark); }
.atlas-workspace { min-height: 0; }
.sidebar { width: 256px; min-width: 216px; flex-shrink: 0; padding: 26px 19px 16px; background: var(--bg-card); border-right: 1px solid var(--atlas-line); }
.sidebar-intro { flex-shrink: 0; padding: 0 6px 24px; }
.atlas-eyebrow { margin: 0 0 10px; color: #84917a; font-size: 9px; letter-spacing: 2.2px; line-height: 1.6; }
.sidebar-intro h2 { margin: 0 0 12px; font: 30px/1.4 var(--atlas-serif); letter-spacing: 2px; }
.sidebar-lead { margin: 0; color: var(--text-3); font-size: 11px; line-height: 1.9; }
.sidebar-title { display: flex; justify-content: space-between; padding: 0 6px; margin-bottom: 12px; color: var(--text); font-size: 12px; letter-spacing: 0; }
.sidebar-title span { color: var(--text-3); font-size: 10px; }
.species-search { padding: 0 3px 16px; }
.input, .inline-input { border: 1px solid var(--atlas-line); border-radius: 5px; background: var(--bg-card); }
.input { padding: 10px 12px; }
.input:focus, .inline-input:focus { border-color: #6f9174; box-shadow: 0 0 0 3px #315a4910; }
.sidebar-body { min-height: 0; gap: 9px; }
.species-index { width: 24px; gap: 3px; padding-right: 5px; border-color: var(--atlas-line); }
.species-index span { width: 19px; height: 22px; min-height: 22px; font-size: 10px; border-radius: 3px; }
.species-index span.active { background: var(--primary); color: white; box-shadow: none; }
.tree-item { min-height: 40px; padding: 9px 8px; border-radius: 4px; font-size: 12px; gap: 8px; }
.tree-item.active { background: var(--bg-soft); color: var(--primary-dark); }
.tree-item.hit { background: #edf0e7; box-shadow: inset 2px 0 var(--primary-light); }
.tree-count { border-radius: 4px; background: #eeeee5; font-size: 10px; }
.main-area { min-width: 0; padding: 30px 28px; background: var(--bg); }
.grid-toolbar { align-items: center; gap: 16px; padding-bottom: 22px; margin-bottom: 22px; border-bottom: 1px solid var(--atlas-line); }
.collection-title { flex-shrink: 0; }
.collection-title .atlas-eyebrow { margin-bottom: 7px; }
.grid-title { font: 29px/1.4 var(--atlas-serif); letter-spacing: 1px; }
#filter-chips, #batch-actions { flex-wrap: wrap; }
.filter-chip { padding: 5px 10px; font-size: 11px; background: transparent; color: var(--text-3); }
.filter-chip.active { background: var(--primary); color: white; }
.edit-mode .main-area { padding-top: 0; }
.edit-mode .grid-toolbar { top: 0; padding: 20px 0 16px; margin: 0 0 22px; background: var(--bg); box-shadow: none; border-color: var(--atlas-line); }
.photo-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 23px 18px; }
.photo-card { border: 1px solid transparent; border-radius: 5px; background: transparent; box-shadow: none; }
.photo-card:hover { transform: none; box-shadow: none; border-color: #c7d1bf; }
.thumb { border-radius: 4px; background: #e4e7dc; }
.card-body { padding: 10px 5px 5px; }
.card-name { font-size: 12px; color: var(--text); }
.card-species { font-size: 10px; color: var(--text-3); margin-top: 4px; }
.photo-card.selected { border-color: var(--primary); background: #edf0e7; }
.photo-card.batch-checked { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.photo-card.needs_confirmation { background: #f6f0df; }
.photo-card.failed { background: #f8ece6; }
.drawer { width: 326px; min-width: 0; border-left: 1px solid var(--atlas-line); background: var(--bg-card); box-shadow: none; }
.drawer-head { padding: 24px 22px 18px; background: var(--bg-card); border-color: var(--atlas-line); gap: 10px; }
.drawer-title { font: 21px/1.5 var(--atlas-serif); }
.drawer-subtitle { color: var(--text-3); font-size: 11px; line-height: 1.7; }
.drawer-body { padding: 22px; }
.drawer-img { border-radius: 4px; }
.section-title { font-size: 11px; color: var(--text-3); letter-spacing: 1px; }
.intro-text { font-size: 12px; color: var(--text-2); line-height: 2; }
.md-content { border-color: var(--atlas-line); background: var(--bg); border-radius: 5px; }
.drawer-footer, .settings-foot { border-color: var(--atlas-line); background: var(--bg-card); }
.settings-modal { border: 1px solid var(--atlas-line); border-radius: 8px; }
.settings-modal .drawer-title { font-size: 20px; }
.settings-foot { border-radius: 0 0 8px 8px; }
.ai-searchbar { padding: 11px 28px; background: var(--bg-card); border-color: var(--atlas-line); }
.ai-result-tip { background: var(--bg-soft); border-color: var(--atlas-line); }
.lightbox { background: #0d1511f5; }
button:focus-visible, .species-index span:focus-visible { outline: 2px solid #679b73; outline-offset: 3px; }
@media (min-width: 1600px) {
  .sidebar { width: 280px; padding: 32px 23px 20px; }
  .drawer { width: 368px; }
  .main-area { padding: 35px 36px; }
  .photo-grid { grid-template-columns: repeat(auto-fill, minmax(205px, 1fr)); gap: 26px 22px; }
}
@media (max-width: 1200px) {
  .app-header { padding: 15px 20px; gap: 12px 20px; }
  .sidebar { width: 220px; padding: 24px 13px 14px; }
  .drawer { width: 282px; }
  .main-area { padding: 26px 20px; }
  .drawer-head, .drawer-body { padding: 18px; }
  .photo-grid { grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 18px 13px; }
  .sidebar-intro h2 { font-size: 26px; }
}
/* 窄屏仍保留目录、索引和详情；上下排布，不隐藏功能面板。 */
@media (max-width: 760px) {
  #app { height: auto; min-height: 100dvh; }
  .app-header { padding: 16px; gap: 13px; }
  .app-title { font-size: 21px; }
  .atlas-stats { margin-left: auto; margin-right: 0; }
  .atlas-actions { width: 100%; justify-content: flex-start; }
  .atlas-workspace { display: grid; grid-template-columns: 175px minmax(0, 1fr); overflow: visible; flex: none; }
  .sidebar { width: auto; min-width: 0; padding: 20px 10px; height: min(72dvh, 720px); position: sticky; top: 0; }
  .sidebar-intro { padding: 0 4px 18px; }
  .sidebar-intro h2 { font-size: 23px; }
  .sidebar-lead { font-size: 10px; }
  .sidebar-title { font-size: 11px; flex-wrap: wrap; gap: 3px; }
  .tree-item { font-size: 11px; padding: 8px 5px; }
  .main-area { padding: 22px 14px; overflow-y: auto; height: min(72dvh, 720px); }
  .grid-title { font-size: 25px; }
  .atlas-eyebrow { font-size: 8px; letter-spacing: 1.2px; }
  .photo-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 17px 10px; }
  .drawer { width: auto; grid-column: 1 / -1; height: auto; border-left: 0; border-top: 1px solid var(--atlas-line); }
  .drawer-body { overflow: visible; }
  .drawer-img { max-height: 65dvh; object-fit: contain; }
  .edit-mode .grid-toolbar { position: static; }
  .ai-searchbar { flex-wrap: wrap; padding: 12px 16px; }
  .ai-search-inner { min-width: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  .btn, .photo-card { transition: none; }
  .settings-modal { animation: none; }
}