:root {
  --primary: #0e5a8a;
  --primary-dark: #0a4268;
  --primary-light: #e8f1f8;
  --accent: #e0752f;
  --accent-dark: #c25f1e;
  --success: #1e8e5a;
  --success-bg: #e7f5ee;
  --danger: #c0392b;
  --danger-bg: #fbeae7;
  --ink: #1c2733;
  --ink-2: #44546a;
  --ink-3: #74839a;
  --line: #dbe3ec;
  --bg: #f4f7fa;
  --card: #ffffff;
  --chip: #eef3f8;
  --shadow: 0 1px 3px rgba(16, 42, 67, .08), 0 4px 16px rgba(16, 42, 67, .06);
  --radius: 12px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

/* ---------- Top header bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  box-shadow: 0 2px 10px rgba(10, 66, 104, .25);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 12px;
}
.brand {
  display: flex; align-items: center; gap: 10px; min-width: 0;
  text-decoration: none; color: #fff;
}
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px; flex: none;
  background: rgba(255,255,255,.16);
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px; letter-spacing: .5px;
  border: 1px solid rgba(255,255,255,.25);
}
.brand .bname { font-weight: 700; font-size: 15px; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand .bsub { font-size: 11px; opacity: .82; font-weight: 400; display: block; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 8px; border: 1px solid transparent;
  font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none;
  transition: background .15s, transform .05s; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-ghost:disabled, .btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-ghost:hover { background: rgba(255,255,255,.24); }
.btn-home .icon, .btn-mail .icon { font-size: 14px; }
.sel {
  background: rgba(255,255,255,.14); color: #fff default; color: #fff;
  border: 1px solid rgba(255,255,255,.3); border-radius: 8px;
  padding: 6px 8px; font-size: 13px; cursor: pointer; max-width: 150px;
  color-scheme: dark;
}
.sel option { color: #1c2733; }

/* ---------- Layout ---------- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 20px 16px 56px; }
.crumb { font-size: 13px; color: var(--ink-3); margin-bottom: 12px; }
.crumb a { color: var(--primary); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

h1.page-title { font-size: 26px; margin: 4px 0 6px; letter-spacing: -.2px; }
p.page-desc { color: var(--ink-2); margin: 0 0 18px; max-width: 860px; font-size: 14.5px; }

/* ---------- Grid ---------- */
.grid { display: grid; gap: 16px; }
.g-auto { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.g2 { grid-template-columns: 1fr 1fr; }
.g3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 880px) { .g2, .g3 { grid-template-columns: 1fr; } }

/* ---------- Cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 20px;
}
.card h2 {
  margin: 0 0 4px; font-size: 17px; display: flex; align-items: center; gap: 8px;
}
.card h2 .tno { flex: none; width: 24px; height: 24px; border-radius: 7px; background: var(--primary); color: #fff; font-size: 13px; display: grid; place-items: center; font-weight: 700; }
.card .sub { color: var(--ink-3); font-size: 12.5px; margin-bottom: 14px; }
.card + .card { margin-top: 16px; }

/* Tool cards on home */
.tool-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 10px;
  transition: transform .12s, box-shadow .12s, border-color .12s;
  text-decoration: none; color: var(--ink);
}
.tool-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(16,42,67,.12); border-color: var(--primary); }
.tool-card .ic { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; font-size: 22px; background: var(--primary-light); }
.tool-card .tt { font-weight: 700; font-size: 15.5px; }
.tool-card .td { font-size: 13px; color: var(--ink-2); flex: 1; }
.tool-card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tool-card .tag { font-size: 11px; color: var(--primary); background: var(--chip); padding: 2px 8px; border-radius: 20px; }
.tool-card .go { font-size: 13px; font-weight: 600; color: var(--primary); }

/* ---------- Forms ---------- */
label.fl { display: block; font-size: 12.5px; color: var(--ink-2); margin-bottom: 5px; font-weight: 600; }
.field { margin-bottom: 14px; }
.inp {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 14px; background: #fff; color-scheme: light;
}
.inp:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }
.inp.num { font-family: var(--mono); color: var(--primary-dark); }
.inp-note { font-size: 11px; color: var(--ink-3); margin-top: 3px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.form-grid.one { grid-template-columns: 1fr; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- Results ---------- */
.result {
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-top: 8px;
}
.result-head {
  background: var(--primary-light); padding: 9px 14px; font-weight: 700; font-size: 13.5px;
  color: var(--primary-dark); display: flex; justify-content: space-between; align-items: center;
}
.result-grid { display: grid; grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .result-grid { grid-template-columns: 1fr; } }
.ri { padding: 9px 14px; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; }
.ri:nth-child(odd)::before, .ri::after {}
.ri .rlbl { font-size: 12px; color: var(--ink-3); }
.ri .rval { font-size: 16px; font-weight: 700; font-family: var(--mono); color: var(--primary-dark); }
.ri .rval small { font-weight: 500; color: var(--ink-3); font-size: 12px; margin-left: 4px; }
.ri.kpi { background: var(--success-bg); }
.ri.kpi .rval { color: var(--success); }
.ri.warn { background: var(--danger-bg); }
.ri.warn .rval { color: var(--danger); }
.dl-inline { font-size: 12px; color: var(--ink-3); background: var(--chip); border-radius: 5px; padding: 1px 6px; margin-left: 6px; }

/* ---------- Tables ---------- */
.rtable { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.rtable th, .rtable td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
.rtable thead th { background: var(--primary); color: #fff; font-weight: 600; position: sticky; top: 0; }
.rtable tbody tr:nth-child(even) { background: #f6f9fc; }
.rtable tbody tr:hover { background: var(--primary-light); }
.rtable .numcell { font-family: var(--mono); text-align: right; }
.rtablecaption { font-size: 12.5px; color: var(--ink-3); margin: 8px 0 6px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }

/* ---------- Notes / formula ---------- */
.formula {
  background: #10212e; color: #cfe8ff; font-family: var(--mono); font-size: 12.5px;
  padding: 10px 14px; border-radius: 8px; margin: 8px 0; overflow-x: auto;
  white-space: pre-wrap; line-height: 1.6;
}
.note {
  font-size: 12.5px; color: var(--ink-2); background: #fdf6ec; border: 1px solid #f0dcc0;
  border-radius: 8px; padding: 10px 14px; margin: 8px 0;
}
.note b { color: var(--accent-dark); }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-soft { background: var(--chip); color: var(--ink-2); }
.btn-soft:hover { background: #e2e9f1; }

/* ---------- Home hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff; border-radius: 16px; padding: 30px 28px; margin-bottom: 20px;
}
.hero h1 { margin: 0 0 6px; font-size: 26px; }
.hero p { margin: 0; opacity: .9; max-width: 760px; font-size: 14.5px; }
.hero .pill { display: inline-block; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.28); padding: 3px 11px; border-radius: 20px; font-size: 12px; margin: 12px 6px 0 0; }

.section-title { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--ink-3); margin: 26px 0 12px; display: flex; align-items: center; gap: 8px; }
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* ---------- misc ---------- */
.pill-badge { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 20px; }
.pill-ok { background: var(--success-bg); color: var(--success); }
.pill-bad { background: var(--danger-bg); color: var(--danger); }

.footer { text-align: center; color: var(--ink-3); font-size: 12.5px; padding: 26px 16px 40px; }
.footer a { color: var(--primary); text-decoration: none; }

.backtop { position: fixed; right: 18px; bottom: 18px; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); cursor: pointer; font-size: 18px; color: var(--primary); display: none; place-items: center; }
.backtop.show { display: grid; }

/* Import/Export */
.import-zone { border: 1.5px dashed var(--line); border-radius: 10px; padding: 18px; text-align: center; color: var(--ink-3); margin-bottom: 12px; font-size: 13px; }
.import-zone input { margin-top: 8px; }

/* ---------- Cost / verdict extras ---------- */
.tlab { font-size: 13px; color: var(--ink-2); font-weight: 600; }
.tlab.kpi, .rval.kpi { font-weight: 700; }
.rval.good { color: var(--success); font-weight: 700; }
.rval.bad { color: var(--danger); font-weight: 700; }
.verdict {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 12px 14px; border-top: 1px solid var(--line);
  font-size: 14.5px;
}
.verdict .ok-dot { color: var(--success); font-size: 12px; }
.verdict .good { color: var(--success); font-weight: 700; }
.verdict .bad { color: var(--danger); font-weight: 700; }
.verdict.good { background: var(--success-bg); }
.verdict.bad { background: var(--danger-bg); }
.good { color: var(--success); }
.bad { color: var(--danger); }
.alt-line { margin: 10px 14px 12px; }
.warn-note {
  background: var(--danger-bg); color: var(--danger);
  border: 1px solid #f0c4bb; border-radius: 8px;
  padding: 11px 14px; margin-top: 10px; font-size: 13px;
}

/* ---------- Flow / schedule cards ---------- */
.flowcard { margin-top: 10px; }
.flowcard .rtable { font-size: 12.5px; }
.flowcard .sub { margin-bottom: 8px; }
.mono { font-family: var(--mono); font-size: 12.5px; }
.sel-light {
  background: #fff; color: var(--ink); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px; font-size: 13px; cursor: pointer;
  color-scheme: light;
}