:root {
  --bg: #f5f5f7;
  --bg-elev: #ffffff;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --line: rgba(0, 0, 0, .09);
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --radius: 18px;
  --shadow: 0 4px 24px rgba(0, 0, 0, .06);
  --shadow-hover: 0 12px 36px rgba(0, 0, 0, .12);
  --nav-bg: rgba(255, 255, 255, .72);
  --ok: #1a8f4a;
  --warn: #b06a00;
  --err: #c7362c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000;
    --bg-elev: #1c1c1e;
    --text: #f5f5f7;
    --text-2: #a1a1a6;
    --line: rgba(255, 255, 255, .14);
    --nav-bg: rgba(22, 22, 23, .8);
    --shadow: 0 4px 24px rgba(0, 0, 0, .5);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { letter-spacing: -.02em; margin: 0 0 12px; font-weight: 600; }
h1 { font-size: clamp(32px, 5vw, 56px); line-height: 1.08; }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }
p { margin: 0 0 12px; }
.muted { color: var(--text-2); font-size: 13px; }
.narrow { max-width: 980px; margin: 0 auto; }
.wide { max-width: 1320px; margin: 0 auto; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1320px; margin: 0 auto; height: 52px; padding: 0 22px;
  display: flex; align-items: center; gap: 26px;
}
.brand { font-weight: 600; font-size: 19px; color: var(--text); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 22px; flex: 1; }
.nav-links a { color: var(--text); font-size: 13.5px; opacity: .85; }
.nav-links a:hover { opacity: 1; color: var(--accent); text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-user { font-size: 13px; color: var(--text-2); }
.nav-user em { font-style: normal; opacity: .7; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent); color: #fff; border: none; cursor: pointer;
  border-radius: 980px; padding: 11px 22px; font-size: 14.5px; font-weight: 500;
  font-family: inherit; transition: .2s; white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-ghost:hover { background: rgba(0, 113, 227, .08); }
.btn-grey { background: rgba(120, 120, 128, .16); color: var(--text); }
.btn-grey:hover { background: rgba(120, 120, 128, .26); }
.btn-danger { background: var(--err); }
.btn-danger:hover { background: #a92a22; }
.btn-ok { background: var(--ok); }
.btn-ok:hover { background: #157a3f; }
.btn-sm { padding: 7px 15px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- layout ---------- */
.page { max-width: 1320px; margin: 0 auto; padding: 40px 22px 80px; }
.section { margin-bottom: 56px; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.card {
  background: var(--bg-elev); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: transform .28s cubic-bezier(.2,.8,.3,1), box-shadow .28s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.card-media { position: relative; aspect-ratio: 4/3; overflow: hidden; background: #ddd; }
.card-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s; }
.card:hover .card-media img { transform: scale(1.045); }
.card-body { padding: 16px 18px 20px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.card-meta { font-size: 12.5px; color: var(--text-2); display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 980px; font-size: 11.5px;
  background: rgba(120,120,128,.14); color: var(--text-2);
}
.badge-accent { background: rgba(0,113,227,.12); color: var(--accent); }
.st-pending { background: rgba(176,106,0,.14); color: var(--warn); }
.st-level1 { background: rgba(0,113,227,.12); color: var(--accent); }
.st-published { background: rgba(26,143,74,.14); color: var(--ok); }
.st-rejected { background: rgba(199,54,44,.14); color: var(--err); }

/* ---------- hero ---------- */
.hero { text-align: center; padding: 60px 0 40px; }
.hero h1 {
  background: linear-gradient(120deg, #0071e3, #6f42c1 55%, #ff375f);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { font-size: clamp(16px, 2vw, 21px); color: var(--text-2); max-width: 720px; margin: 14px auto 26px; }
.hero-stats { display: flex; justify-content: center; gap: 46px; margin-top: 26px; flex-wrap: wrap; }
.hero-stats b { display: block; font-size: 28px; font-weight: 600; }
.hero-stats span { font-size: 12.5px; color: var(--text-2); }
.search-bar { display: flex; gap: 10px; max-width: 660px; margin: 0 auto; }

/* ---------- forms ---------- */
input, select, textarea {
  width: 100%; padding: 12px 15px; border-radius: 12px; border: 1px solid var(--line);
  background: var(--bg-elev); color: var(--text); font-size: 15px; font-family: inherit;
  transition: .2s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,113,227,.15); }
textarea { min-height: 110px; resize: vertical; }
label { display: block; font-size: 13px; color: var(--text-2); margin: 0 0 6px; font-weight: 500; }
.field { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.form-card {
  background: var(--bg-elev); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow);
}
.form-narrow { max-width: 520px; margin: 30px auto 0; }
.checkbox-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-grid label {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 15px; border-radius: 980px;
  border: 1px solid var(--line); background: var(--bg-elev); cursor: pointer; font-size: 13.5px; color: var(--text);
  margin: 0;
}
.checkbox-grid input { width: auto; margin: 0; }

/* ---------- flash ---------- */
.flash-wrap { max-width: 1320px; margin: 14px auto 0; padding: 0 22px; }
.flash { padding: 12px 18px; border-radius: 12px; margin-bottom: 10px; font-size: 14px; }
.flash-success { background: rgba(26,143,74,.12); color: var(--ok); }
.flash-error { background: rgba(199,54,44,.12); color: var(--err); }

/* ---------- photo detail ---------- */
.detail { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 36px; align-items: start; }
.stage { background: #111; border-radius: var(--radius); overflow: hidden; position: relative; }
.stage img { width: 100%; display: block; }
.stage-toolbar { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px; background: var(--bg-elev); border-top: 1px solid var(--line); }
.stage-toolbar .btn { font-size: 12.5px; padding: 7px 14px; }
.info-panel { background: var(--bg-elev); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.kv { display: flex; justify-content: space-between; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.kv:last-child { border-bottom: none; }
.kv span:first-child { color: var(--text-2); flex-shrink: 0; }
.kv span:last-child { text-align: right; word-break: break-all; }
.tag { display: inline-block; padding: 4px 12px; border-radius: 980px; background: rgba(0,113,227,.1); color: var(--accent); font-size: 12.5px; margin: 0 6px 6px 0; }
.exif-table { width: 100%; font-size: 13px; border-collapse: collapse; }
.exif-table td { padding: 6px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.exif-table td:first-child { color: var(--text-2); width: 42%; }
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 34px; flex-wrap: wrap; }
.pager a, .pager span {
  padding: 8px 14px; border-radius: 10px; background: var(--bg-elev); color: var(--text); font-size: 13.5px;
  box-shadow: var(--shadow);
}
.pager .on { background: var(--accent); color: #fff; }
.empty { text-align: center; padding: 70px 20px; color: var(--text-2); }

/* ---------- admin ---------- */
.admin { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 30px; }
.side { position: sticky; top: 72px; align-self: start; }
.side a { display: block; padding: 9px 14px; border-radius: 10px; color: var(--text); font-size: 14px; margin-bottom: 2px; }
.side a:hover { background: rgba(120,120,128,.12); text-decoration: none; }
.side a.on { background: var(--accent); color: #fff; }
.side .side-title { font-size: 11.5px; text-transform: uppercase; color: var(--text-2); margin: 16px 0 6px 14px; letter-spacing: .06em; }
.table-wrap { background: var(--bg-elev); border-radius: var(--radius); box-shadow: var(--shadow); overflow: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data th, table.data td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.data th { color: var(--text-2); font-weight: 500; font-size: 12.5px; background: rgba(120,120,128,.06); }
table.data tr:last-child td { border-bottom: none; }
table.data td.wrap { white-space: normal; max-width: 340px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat { background: var(--bg-elev); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow); }
.stat b { font-size: 26px; font-weight: 600; display: block; }
.stat span { font-size: 12.5px; color: var(--text-2); }
.panel { background: var(--bg-elev); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin-bottom: 24px; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.tabs a { padding: 8px 16px; border-radius: 980px; background: var(--bg-elev); font-size: 13.5px; color: var(--text); box-shadow: var(--shadow); }
.tabs a.on { background: var(--accent); color: #fff; }
.tabs a:hover { text-decoration: none; }

/* ---------- viewer tools ---------- */
.viewer { position: relative; overflow: hidden; line-height: 0; }
.viewer canvas { max-width: 100%; display: block; }
.overlay { position: absolute; inset: 0; pointer-events: none; }
.overlay .v3, .overlay .h3 { position: absolute; background: rgba(255,255,255,.75); box-shadow: 0 0 2px rgba(0,0,0,.7); }
.overlay .v3 { top: 0; bottom: 0; width: 1px; }
.overlay .h3 { left: 0; right: 0; height: 1px; }
.overlay .horizon { position: absolute; left: 0; right: 0; height: 2px; background: #ff375f; box-shadow: 0 0 6px rgba(255,55,95,.9); }
.picker-dot { position: absolute; width: 14px; height: 14px; border: 2px solid #fff; border-radius: 50%; transform: translate(-50%,-50%); box-shadow: 0 0 0 1px #000; }
.rgb-box { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; padding: 10px 12px; border-radius: 10px; background: rgba(120,120,128,.12); margin-top: 10px; }

/* ---------- search suggest ---------- */
.search-wrap { position: relative; flex: 1; }
.suggest {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 60;
  background: var(--bg-elev); border-radius: 14px; box-shadow: var(--shadow-hover);
  border: 1px solid var(--line); padding: 10px; max-height: 60vh; overflow: auto; text-align: left;
}
.sug-group { padding: 6px 4px; }
.sug-group + .sug-group { border-top: 1px solid var(--line); }
.sug-group b { display: block; font-size: 11.5px; color: var(--text-2); font-weight: 500; margin: 2px 0 6px 6px; letter-spacing: .04em; }
.sug-group a { display: block; padding: 7px 10px; border-radius: 9px; font-size: 14px; color: var(--text); }
.sug-group a:hover { background: rgba(120,120,128,.12); text-decoration: none; }
.sug-group a em { font-style: normal; color: var(--text-2); font-size: 12.5px; margin-left: 6px; }

/* ---------- viewer toolbar controls ---------- */
.ctl-label {
  display: inline-flex; align-items: center; gap: 8px; margin: 0; font-size: 12.5px;
  color: var(--text-2); background: rgba(120,120,128,.1); border-radius: 980px; padding: 6px 14px;
}
.ctl-label span { font-variant-numeric: tabular-nums; min-width: 34px; text-align: right; }
input[type=range] {
  width: 110px; padding: 0; height: 16px; border: none; background: transparent;
  box-shadow: none; accent-color: var(--accent); cursor: pointer;
}
input[type=range]:focus { box-shadow: none; }
input[type=color] { width: 46px; height: 30px; padding: 2px; cursor: pointer; }
input[type=file] { padding: 9px 12px; font-size: 14px; }
input[type=checkbox], input[type=radio] { width: auto; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--bg-elev); margin-top: 40px; }
.footer-inner { max-width: 1320px; margin: 0 auto; padding: 34px 22px; font-size: 13.5px; }
.footer-links { display: flex; gap: 18px; margin: 12px 0; }
.footer-links a { font-size: 13px; }

@media (max-width: 980px) {
  .detail { grid-template-columns: 1fr; }
  .admin { grid-template-columns: 1fr; }
  .side { position: static; display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; }
  .side a { white-space: nowrap; margin: 0; }
  .side .side-title { display: none; }
  .nav-links { display: none; }
}