/* PanView PlantOmics — 原型样式 */
:root {
  --bg: #f5f8f6;
  --surface: #ffffff;
  --surface-2: #eef3f0;
  --surface-3: #e5ece8;
  --border: #dbe4df;
  --border-strong: #c4d2cb;
  --text: #17241f;
  --muted: #5f7169;
  --muted-2: #869389;
  --primary: #2e8b57;
  --primary-d: #206b42;
  --primary-l: #e7f2ec;
  --accent: #1f77b4;
  --accent-l: #e6f0f8;
  --warn: #c97a17;
  --warn-l: #fbf0df;
  --danger: #c0392b;
  --danger-l: #fbeae7;
  --purple: #7b4173;
  --ok: #2e8b57;
  --shadow-sm: 0 1px 2px rgba(20,40,32,.06), 0 1px 3px rgba(20,40,32,.08);
  --shadow: 0 4px 14px rgba(20,40,32,.08);
  --shadow-lg: 0 12px 34px rgba(20,40,32,.16);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --mono: "SFMono-Regular", "Cascadia Code", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-d); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4 { margin: 0 0 .4em; line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); }
img { max-width: 100%; }
hr { border: none; border-top: 1px solid var(--border); margin: 1.4rem 0; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 22px; }
.container-wide { max-width: 1600px; margin: 0 auto; padding: 0 22px; }

/* ---------- Top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); font-size: 17px; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #3fae74);
  display: grid; place-items: center; color: #fff; font-size: 17px; box-shadow: var(--shadow-sm);
}
.brand small { color: var(--muted); font-weight: 600; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; display: block; margin-top: -2px; }
.nav-links { display: flex; gap: 2px; margin-left: 8px; flex: 1; }
.nav-links a {
  color: var(--muted); font-weight: 600; font-size: 14px; padding: 8px 12px; border-radius: 8px;
}
.nav-links a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--primary-d); background: var(--primary-l); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.user-chip {
  display: flex; align-items: center; gap: 8px; padding: 5px 10px 5px 5px; border: 1px solid var(--border);
  border-radius: 999px; background: var(--surface); font-size: 13px; font-weight: 600; cursor: pointer;
}
.user-chip .avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-size: 12px; }
.user-chip .role { color: var(--muted); font-weight: 500; font-size: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer; border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--text); padding: 9px 15px; border-radius: 9px; font-weight: 600;
  font-size: 14px; font-family: inherit; transition: .15s; white-space: nowrap;
}
.btn:hover { border-color: var(--muted-2); background: var(--surface-2); text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); border-color: var(--primary-d); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-sm { padding: 6px 11px; font-size: 13px; border-radius: 8px; }
.btn-icon { padding: 8px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Badges / chips / pills ---------- */
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.badge.green { background: var(--primary-l); color: var(--primary-d); border-color: #bfe0cd; }
.badge.blue { background: var(--accent-l); color: var(--accent); border-color: #c3ddf0; }
.badge.warn { background: var(--warn-l); color: var(--warn); border-color: #f0d9b4; }
.badge.danger { background: var(--danger-l); color: var(--danger); border-color: #f2c7c0; }
.badge.purple { background: #f2e9f0; color: var(--purple); border-color: #e0c9db; }
.badge.gray { background: var(--surface-3); color: var(--muted); }
.badge.solid { background: var(--primary); color: #fff; border-color: var(--primary); }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }

.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; padding: 4px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text); cursor: pointer; }
.chip:hover { border-color: var(--primary); color: var(--primary-d); }
.chip.on { background: var(--primary-l); border-color: #bfe0cd; color: var(--primary-d); }

/* ---------- Cards ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.card-pad { padding: 18px 20px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--border); }
.card-head h3 { margin: 0; font-size: 15px; }
.card-title-icon { display: inline-flex; width: 26px; height: 26px; border-radius: 7px; background: var(--primary-l); color: var(--primary-d); place-items: center; margin-right: 8px; font-size: 14px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px){ .grid-3,.grid-4 { grid-template-columns: repeat(2,1fr);} }
@media (max-width: 680px){ .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr;} }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.tbl th, table.tbl td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
table.tbl th { background: var(--surface-2); color: var(--muted); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; position: sticky; top: 0; }
table.tbl tbody tr:hover { background: var(--primary-l); }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Forms ---------- */
.input, select.input, textarea.input {
  width: 100%; padding: 10px 13px; border: 1px solid var(--border-strong); border-radius: 9px;
  font-family: inherit; font-size: 14px; background: var(--surface); color: var(--text); outline: none;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-l); }
textarea.input { resize: vertical; }
label.lbl { display: block; font-weight: 600; font-size: 13px; margin-bottom: 6px; color: var(--text); }
.field { margin-bottom: 14px; }
.help { color: var(--muted); font-size: 12.5px; }

/* ---------- Search box ---------- */
.search {
  display: flex; align-items: center; gap: 8px; background: var(--surface); border: 1.5px solid var(--border-strong);
  border-radius: 14px; padding: 6px 6px 6px 16px; box-shadow: var(--shadow-sm);
}
.search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-l); }
.search input { flex: 1; border: none; outline: none; font-size: 16px; background: transparent; font-family: inherit; color: var(--text); }
.search .scope { border: none; background: var(--surface-2); border-radius: 9px; padding: 8px 10px; font-weight: 600; color: var(--muted); font-size: 13px; }
.search-nav { max-width: 460px; flex: 1; }
.search-nav input { font-size: 14px; }
.search-nav { padding: 3px 3px 3px 12px; border-radius: 11px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #1f5c3c 0%, #2e8b57 55%, #3fae74 100%); color: #fff; }
.hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 20% 20%, rgba(255,255,255,.14), transparent 40%), radial-gradient(circle at 85% 15%, rgba(255,255,255,.10), transparent 35%); pointer-events: none; }
.hero .container { position: relative; z-index: 1; padding-top: 54px; padding-bottom: 60px; }
.hero h1 { font-size: 40px; letter-spacing: -.02em; margin-bottom: 10px; }
.hero .lead { font-size: 17px; opacity: .95; max-width: 760px; margin-bottom: 26px; }
.hero .search { box-shadow: var(--shadow-lg); }
.hero .search input::placeholder { color: var(--muted); }
.hero-eg { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 13px; opacity: .95; }
.hero-eg .chip { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.28); color: #fff; }
.hero-eg .chip:hover { background: rgba(255,255,255,.26); }

.stat-row { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 30px; }
.stat { }
.stat .n { font-size: 26px; font-weight: 800; }
.stat .l { font-size: 12.5px; opacity: .9; }

/* ---------- Sections ---------- */
.section { padding: 40px 0; }
.section-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.section-title h2 { font-size: 22px; }
.eyebrow { color: var(--primary-d); font-weight: 800; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 6px; }
.muted { color: var(--muted); }
.muted-2 { color: var(--muted-2); }
.small { font-size: 12.5px; }

/* feature entry cards */
.feature { display: block; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: .16s; height: 100%; }
.feature:hover { text-decoration: none; border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.feature .ico { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; font-size: 20px; margin-bottom: 12px; background: var(--primary-l); color: var(--primary-d); }
.feature h3 { font-size: 15.5px; margin-bottom: 5px; color: var(--text); }
.feature p { font-size: 13px; color: var(--muted); margin: 0; }
.feature .fcode { float: right; font-size: 11px; color: var(--muted-2); font-weight: 700; }

/* omics tag list */
.omics-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
@media (max-width: 900px){ .omics-grid { grid-template-columns: repeat(2,1fr);} }
.omics { border: 1px solid var(--border); border-radius: 10px; padding: 12px; background: var(--surface); position: relative; }
.omics .code { font-size: 11px; font-weight: 800; color: var(--muted-2); }
.omics .nm { font-weight: 700; font-size: 14px; margin: 2px 0; }
.omics .dt { font-size: 12px; color: var(--muted); }
.omics.complex { border-style: dashed; }
.omics .star { position: absolute; top: 10px; right: 10px; color: var(--warn); font-size: 12px; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; overflow-x: auto; }
.tabs button { border: none; background: transparent; padding: 10px 15px; font-weight: 600; font-size: 14px; color: var(--muted); cursor: pointer; border-bottom: 2.5px solid transparent; font-family: inherit; white-space: nowrap; }
.tabs button:hover { color: var(--text); }
.tabs button.active { color: var(--primary-d); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px);} to { opacity: 1; transform: none;} }

/* ---------- Genome browser ---------- */
.browser { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.browser-toolbar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--surface-2); flex-wrap: wrap; }
.browser-loc { display: flex; align-items: center; gap: 6px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: 9px; padding: 4px 6px 4px 10px; }
.browser-loc input { border: none; outline: none; font-family: var(--mono); font-size: 13px; width: 220px; background: transparent; color: var(--text); }
.browser-body { display: flex; }
.track-gutter { width: 210px; flex: none; border-right: 1px solid var(--border); background: var(--surface); }
.track-view { flex: 1; overflow: hidden; position: relative; }
.track-lane { border-bottom: 1px solid var(--surface-3); position: relative; }
.track-label { display: flex; align-items: center; gap: 7px; height: 100%; padding: 0 10px; font-size: 12px; font-weight: 600; }
.track-label .swatch { width: 9px; height: 9px; border-radius: 2px; flex: none; }
.track-label .assay { color: var(--muted); font-weight: 500; font-size: 11.5px; }
.gutter-lane { border-bottom: 1px solid var(--surface-3); display: flex; align-items: center; }
.browser-tip { position: fixed; z-index: 100; background: #17241f; color: #fff; padding: 7px 10px; border-radius: 8px; font-size: 12px; pointer-events: none; box-shadow: var(--shadow-lg); max-width: 280px; line-height: 1.4; opacity: 0; transition: opacity .1s; }
.browser-tip .mono { color: #9fe6bf; }
.track-toggle-panel { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 12px; border-top: 1px solid var(--border); background: var(--surface); }
.track-toggle-group { border: 1px solid var(--border); border-radius: 9px; padding: 6px 10px; }
.track-toggle-group .g-title { font-size: 11px; font-weight: 800; color: var(--muted-2); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 5px; }
.tt { display: flex; align-items: center; gap: 6px; font-size: 12.5px; padding: 2px 0; cursor: pointer; }
.tt input { accent-color: var(--primary); }
.zoombar { display: flex; align-items: center; gap: 2px; }

/* ---------- expression heat / bars ---------- */
.expr-bars { display: grid; gap: 6px; }
.expr-row { display: grid; grid-template-columns: 120px 1fr 64px; align-items: center; gap: 10px; font-size: 13px; }
.expr-track { background: var(--surface-2); border-radius: 6px; height: 16px; overflow: hidden; }
.expr-fill { height: 100%; background: linear-gradient(90deg, var(--accent), #4ba3dd); border-radius: 6px; }

/* AI widget */
.ai-fab { position: fixed; right: 22px; bottom: 22px; z-index: 80; width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #3fae74); color: #fff; border: none; cursor: pointer; box-shadow: var(--shadow-lg); font-size: 24px; display: grid; place-items: center; }
.ai-fab:hover { transform: scale(1.05); }
.ai-panel { position: fixed; right: 22px; bottom: 88px; z-index: 81; width: 380px; max-width: calc(100vw - 44px); height: 540px; max-height: calc(100vh - 130px); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); display: none; flex-direction: column; overflow: hidden; }
.ai-panel.open { display: flex; }
.ai-head { padding: 14px 16px; background: linear-gradient(135deg, var(--primary), #3fae74); color: #fff; display: flex; align-items: center; gap: 10px; }
.ai-head .t { font-weight: 700; }
.ai-head .s { font-size: 11.5px; opacity: .9; }
.ai-head .close { margin-left: auto; background: rgba(255,255,255,.2); border: none; color: #fff; width: 28px; height: 28px; border-radius: 8px; cursor: pointer; font-size: 16px; }
.ai-msgs { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; background: var(--bg); }
.ai-msg { max-width: 88%; padding: 9px 12px; border-radius: 12px; font-size: 13.5px; line-height: 1.5; }
.ai-msg.bot { background: var(--surface); border: 1px solid var(--border); align-self: flex-start; border-bottom-left-radius: 4px; }
.ai-msg.me { background: var(--primary); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.ai-msg a { color: inherit; text-decoration: underline; font-weight: 600; }
.ai-msg.bot a { color: var(--primary-d); }
.ai-sugg { display: flex; flex-direction: column; gap: 6px; padding: 8px 14px; border-top: 1px solid var(--border); }
.ai-sugg .chip { justify-content: flex-start; font-size: 12.5px; }
.ai-input { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--border); }
.ai-input input { flex: 1; border: 1px solid var(--border-strong); border-radius: 10px; padding: 9px 12px; font-family: inherit; outline: none; }
.ai-input input:focus { border-color: var(--primary); }

/* breadcrumb */
.crumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); padding: 14px 0; }
.crumb a { color: var(--muted); }
.crumb .sep { color: var(--muted-2); }

/* page head */
.page-head { background: var(--surface); border-bottom: 1px solid var(--border); }
.page-head .container { padding-top: 8px; padding-bottom: 18px; }
.page-title { display: flex; align-items: center; gap: 12px; }
.page-title h1 { font-size: 26px; margin: 0; }

/* misc */
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 6px 14px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }
.tag-row { display: flex; gap: 6px; flex-wrap: wrap; }
.divider-label { display: flex; align-items: center; gap: 10px; color: var(--muted-2); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; margin: 10px 0; }
.divider-label::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.notice { display: flex; gap: 10px; padding: 12px 14px; border-radius: 10px; font-size: 13px; }
.notice.info { background: var(--accent-l); color: #185a8a; border: 1px solid #c3ddf0; }
.notice.warn { background: var(--warn-l); color: #8a5710; border: 1px solid #f0d9b4; }
.notice.ok { background: var(--primary-l); color: var(--primary-d); border: 1px solid #bfe0cd; }
.pre { background: #10201a; color: #d7f5e3; padding: 14px 16px; border-radius: 10px; font-family: var(--mono); font-size: 12.5px; overflow-x: auto; white-space: pre; line-height: 1.5; }
.seq { font-family: var(--mono); font-size: 12.5px; word-break: break-all; line-height: 1.7; }
.seq .cds { background: var(--primary-l); }

footer.foot { border-top: 1px solid var(--border); background: var(--surface); margin-top: 40px; }
footer.foot .container { padding: 26px 22px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
footer.foot b { color: var(--text); }

.spread { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.stack { display: flex; flex-direction: column; gap: 4px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mt0{margin-top:0}.mb0{margin-bottom:0}.mt8{margin-top:8px}.mt12{margin-top:12px}.mt16{margin-top:16px}.mt24{margin-top:24px}
.w100{width:100%}
.right{ text-align:right; }
.nowrap{ white-space:nowrap; }