:root {
  --side: 268px;
  --ink: #1c2330;
  --muted: #5c6778;
  --line: #e6e9ee;
  --bg: #f5f6f8;
  --card: #fff;
  --accent: #1f4e79;
  --accent-soft: #e8f0f7;
  --p0: #9b2c2c;
  --p1: #9a6700;
  --p2: #3d4a5c;
  --hi: #9b2c2c;
  --mid: #9a6700;
  --low: #3d4a5c;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.65 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.layout { display: flex; min-height: 100%; }

.side {
  width: var(--side);
  flex: 0 0 var(--side);
  background: #172033;
  color: #d7deea;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 18px 12px 28px;
  display: flex;
  flex-direction: column;
}
.brand {
  padding: 4px 10px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 12px;
}
.brand strong { display: block; color: #fff; font-size: 15px; letter-spacing: .02em; }
.brand span { display: block; margin-top: 2px; font-size: 12px; color: #8ea0b8; }
.search {
  width: 100%;
  margin: 0 0 12px;
  padding: 7px 10px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  background: rgba(255,255,255,.06);
  color: #fff;
  outline: none;
}
.search::placeholder { color: #8ea0b8; }

.nav-group { margin-bottom: 10px; }
.nav-group > button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  padding: 12px 10px 4px;
  cursor: pointer;
}
.nav-group a {
  display: block;
  color: #d7deea;
  text-decoration: none;
  padding: 6px 10px 6px 16px;
  border-radius: 6px;
  font-size: 13px;
}
.nav-group a:hover { background: rgba(255,255,255,.06); }
.nav-group a.active { background: #1f4e79; color: #fff; }
.nav-group.hidden, .nav-group a.hidden { display: none; }
#nav { flex: 1; min-height: 0; overflow: auto; }

.userbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 12px 0 0;
  padding: 12px 10px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 0;
  color: #b7c4d6;
  font-size: 12px;
}
.userbar a, .userbar button {
  color: #d7deea;
  background: transparent;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  text-decoration: none;
  font-size: 12px;
}
.userbar a:hover, .userbar button:hover { background: rgba(255,255,255,.08); }

.main {
  flex: 1;
  min-width: 0;
  padding: 28px 36px 64px;
}
.doc { max-width: 920px; }

.auth-body {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at top left, #d9e6f2, transparent 40%),
    linear-gradient(180deg, #eef2f6, #f5f6f8);
}
.auth-card {
  width: min(380px, calc(100% - 32px));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 24px 24px;
  box-shadow: 0 10px 30px rgba(23, 32, 51, .06);
}
.auth-card h1 { margin: 0; font-size: 22px; }
.auth-sub { margin: 4px 0 18px; color: var(--muted); font-size: 13px; }
.auth-card label, .admin-form label { display: block; margin-bottom: 12px; }
.auth-card label span, .admin-form label span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
}
.auth-card input, .admin-form input, .admin-form select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}
.auth-card button, .admin-form button[type="submit"], .admin-table button {
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  padding: 9px 14px;
  cursor: pointer;
  font: inherit;
}
.auth-card button { width: 100%; margin-top: 4px; }
.auth-card button:disabled, .admin-form button:disabled { opacity: .6; cursor: not-allowed; }
.auth-err { color: var(--hi); font-size: 13px; margin: 0 0 10px; }

.admin-wrap { max-width: 920px; margin: 0 auto; padding: 28px 20px 64px; }
.admin-bar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}
.admin-bar a { color: var(--accent); text-decoration: none; font-size: 13px; }
.admin-bar h1 { margin: 4px 0 0; font-size: 24px; }
.admin-actions { display: flex; gap: 8px; align-items: center; }
.admin-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}
.admin-card h2 { margin: 0 0 12px; font-size: 16px; border: 0; padding: 0; }
.admin-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
}
.admin-table { width: 100%; margin: 0; }
.admin-table button { margin-right: 6px; padding: 4px 8px; font-size: 12px; }
.btn-ghost {
  background: transparent !important;
  color: var(--ink) !important;
  border: 1px solid var(--line) !important;
}
.btn-danger { background: #9b2c2c !important; }
.dialog-form { display: block; min-width: min(360px, 80vw); }
.dialog-form label { margin-bottom: 10px; }
.dialog-actions { display: flex; gap: 8px; margin-top: 8px; }
dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
dialog::backdrop { background: rgba(23, 32, 51, .35); }

@media (max-width: 860px) {
  .admin-form { grid-template-columns: 1fr 1fr; }
}

.kicker {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .06em;
}
h1 { margin: 0 0 8px; font-size: 26px; font-weight: 650; }
.path {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 4px;
  font-size: 13px;
}

.meta {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--card);
  margin-bottom: 18px;
}
.meta dt, .meta dd {
  margin: 0;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}
.meta dt {
  background: #f8f9fb;
  color: var(--muted);
  font-weight: 600;
}
.meta dd:nth-last-of-type(1), .meta dt:nth-last-of-type(1) { border-bottom: 0; }

.tag {
  display: inline-block;
  min-width: 28px;
  padding: 0 6px;
  border-radius: 3px;
  font-size: 12px;
  line-height: 20px;
  font-weight: 650;
}
.tag.高, .tag.P0, .tag.必须 { color: var(--hi); background: #fdecec; }
.tag.中, .tag.P1, .tag.条件必须 { color: var(--mid); background: #fff6e0; }
.tag.低, .tag.P2, .tag.可选 { color: var(--low); background: #eef1f5; }

h2 {
  margin: 22px 0 8px;
  font-size: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}
p { margin: 8px 0; }
ul, ol { margin: 8px 0 8px 1.2em; padding: 0; }
li { margin: 3px 0; }
.note {
  margin: 10px 0;
  padding: 8px 12px;
  background: #fff8eb;
  border-left: 3px solid #d4a017;
  color: #5c4a1f;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  margin: 8px 0 14px;
  font-size: 13px;
}
th, td {
  border: 1px solid var(--line);
  padding: 7px 10px;
  text-align: left;
  vertical-align: top;
}
th { background: #f8f9fb; font-weight: 650; }
code {
  font-family: Consolas, "Sarasa Mono SC", monospace;
  font-size: 12px;
  background: #eef1f5;
  padding: 1px 4px;
  border-radius: 3px;
}

.shot {
  margin: 12px 0 16px;
}
.shot-box {
  position: relative;
  min-height: 140px;
  border: 1px dashed #b7c0cc;
  border-radius: 8px;
  background:
    linear-gradient(#f3f5f8, #f3f5f8) padding-box;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.shot-box img {
  display: none;
  width: 100%;
  height: auto;
}
.shot-box.ok {
  border-style: solid;
  background: #fff;
  min-height: 0;
}
.shot-box.ok img { display: block; }
.shot-box.ok .shot-ph { display: none; }
.shot-ph {
  text-align: center;
  color: #7b8796;
  font-size: 12px;
  padding: 24px;
}
.shot figcaption {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.empty { color: var(--muted); padding: 40px 0; }

@media (max-width: 640px) {
  .layout { display: block; }
  .side { position: relative; width: auto; height: auto; }
  .main { padding: 20px 16px 48px; }
  .meta { grid-template-columns: 76px 1fr; }
}
@media print {
  .side, .search { display: none; }
  .main { padding: 0; }
  .shot-box { break-inside: avoid; }
}