:root {
  --bg: #f3f6f8;
  --panel: #ffffff;
  --ink: #1f2a33;
  --muted: #5f6f7a;
  --line: #d7e0e6;
  --brand: #0f6e56;
  --brand-dark: #0b5542;
  --danger: #b42318;
  --ok: #067647;
  --warn: #b54708;
  --shadow: 0 10px 30px rgba(20, 40, 50, 0.06);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #d9efe7 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #e7eef5 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }

.shell { max-width: 1440px; margin: 0 auto; padding: 24px; }
.topbar {
  display: flex; align-items: center;
  margin-bottom: 24px; gap: 28px;
}
.nav-side { margin-left: auto; }
.brand { font-size: 22px; font-weight: 700; letter-spacing: 0.2px; color: var(--ink); }
.nav { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--muted); font-weight: 600; }
.nav a.active, .nav a:hover { color: var(--brand); }
.userbox { color: var(--muted); font-size: 14px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 18px;
}
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .grid-4, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .shell { padding: 16px; }
}

.stat h3 { margin: 0; color: var(--muted); font-size: 13px; font-weight: 600; }
.stat .value { margin-top: 8px; font-size: 28px; font-weight: 700; }
.muted { color: var(--muted); }
.ok { color: var(--ok); font-weight: 700; }
.bad { color: var(--danger); font-weight: 700; }
.warn { color: var(--warn); font-weight: 700; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
th { color: var(--muted); font-weight: 600; background: #f8fbfc; }
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 700;
}
.badge.pass { background: #e8f8ef; color: var(--ok); }
.badge.fail { background: #fdecec; color: var(--danger); }
.badge.pending { background: #fff6e8; color: var(--warn); }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; font: inherit; color: var(--ink);
}
textarea { min-height: 80px; resize: vertical; }
.form-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
.form-compact { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 12px; }
.more-fields { margin: 4px 0 8px; }
.more-fields summary { cursor: pointer; color: var(--muted); font-weight: 600; margin-bottom: 10px; }
@media (max-width: 1100px) { .form-compact { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 800px) {
  .form-row, .form-compact { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; gap: 12px; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: none; border-radius: 10px; padding: 10px 16px; font-weight: 700;
  cursor: pointer; background: var(--brand); color: #fff;
}
.btn:hover { background: var(--brand-dark); }
.btn.secondary { background: #e8eef2; color: var(--ink); }
.btn.danger { background: var(--danger); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.login-card { width: min(420px, 100%); }
.error {
  background: #fdecec; color: var(--danger); border: 1px solid #f3c1c1;
  padding: 10px 12px; border-radius: 10px; margin-bottom: 12px;
}
.sheet-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table.sheet { width: 100%; min-width: 1180px; margin: 0; }
table.sheet th, table.sheet td { padding: 6px; vertical-align: middle; }
table.sheet th { position: sticky; top: 0; z-index: 1; white-space: nowrap; }
table.sheet input, table.sheet select { padding: 6px 8px; border-radius: 8px; font-size: 13px; }
table.sheet td.locked, table.sheet th.locked { background: #f7fafb; }
table.sheet .col-item { position: sticky; left: 0; min-width: 200px; z-index: 2; }
table.sheet .col-spec { min-width: 180px; white-space: normal; }
table.sheet thead .col-item { z-index: 3; background: #f8fbfc; }
table.sheet th.locked { white-space: nowrap; }
.item-title { font-weight: 700; color: var(--ink); }
.item-meta { margin-top: 2px; font-size: 12px; color: var(--muted); line-height: 1.4; }
input[readonly] { background: #f7fafb; color: var(--muted); }
.preset-bar { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 14px; }
.btn.ghost { background: #e7f4ef; color: var(--brand-dark); }
.kv { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px 16px; }
@media (max-width: 900px) { .kv { grid-template-columns: 1fr 1fr; } }
.kv .muted { font-size: 12px; margin-bottom: 4px; }
.section-title { margin: 0 0 14px; font-size: 18px; }
table.sheet { min-width: 1320px; }
table.sheet input[type="file"] { max-width: 160px; font-size: 12px; }
.photo-list { display: flex; flex-wrap: wrap; gap: 8px; }
.photo-thumb { width: 88px; height: 88px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); background: #fff; vertical-align: top; }
.photo-add { display: flex; gap: 8px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.photo-add input[type="file"] { max-width: 220px; }