/* ============================================================
 * 中海桥梁 AI 数字化平台 · 共享样式（工业风：深蓝 × 橙）
 * ============================================================ */
:root {
  --c-primary: #0B3D91;
  --c-primary-2: #1565C0;
  --c-accent: #F57C00;
  --c-accent-2: #FF9800;
  --c-danger: #D84315;
  --c-ok: #2E7D32;
  --c-bg: #F2F4F8;
  --c-card: #FFFFFF;
  --c-line: #E3E7EE;
  --c-text: #1A1D24;
  --c-sub: #6B7280;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(11, 61, 145, .08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  font-size: 15px;
}

/* ---------- 顶栏 ---------- */
.topbar {
  background: linear-gradient(120deg, var(--c-primary) 0%, var(--c-primary-2) 100%);
  color: #fff;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.topbar .logo {
  width: 34px; height: 34px; border-radius: 8px; flex: 0 0 34px;
  background: var(--c-accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px; color: #fff;
}
.topbar .title { font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar .sub { font-size: 11px; opacity: .8; }
.topbar .back {
  color: #fff; text-decoration: none; font-size: 13px;
  background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.3);
  padding: 5px 12px; border-radius: 20px; flex: 0 0 auto;
}

/* ---------- 布局 ---------- */
.wrap { max-width: 960px; margin: 0 auto; padding: 16px 14px 60px; }
.card {
  background: var(--c-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}
.card h2 {
  font-size: 16px; font-weight: 800; color: var(--c-primary);
  padding-left: 10px; border-left: 4px solid var(--c-accent);
  margin-bottom: 12px; line-height: 1.3;
}
.card h3 { font-size: 14px; font-weight: 700; color: var(--c-primary); margin: 12px 0 8px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
@media (max-width: 640px) {
  .grid3 { grid-template-columns: 1fr 1fr; }
}

/* ---------- 表单 ---------- */
.field { margin-bottom: 10px; }
.field label { display: block; font-size: 12px; color: var(--c-sub); margin-bottom: 4px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 10px 12px;
  border: 1.5px solid var(--c-line); border-radius: 9px;
  font-size: 15px; background: #FBFCFE; color: var(--c-text);
  outline: none; transition: border .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--c-primary-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 14px; border-radius: 20px; font-size: 13px;
  border: 1.5px solid var(--c-line); background: #fff; color: var(--c-text);
  cursor: pointer; user-select: none; transition: all .15s;
}
.chip.on { background: var(--c-primary); border-color: var(--c-primary); color: #fff; font-weight: 600; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 22px; border-radius: 10px; border: none;
  font-size: 15px; font-weight: 700; cursor: pointer; transition: all .15s;
  text-decoration: none;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-accent { background: var(--c-accent); color: #fff; }
.btn-ghost { background: #fff; color: var(--c-primary); border: 1.5px solid var(--c-primary); }
.btn-block { width: 100%; }
.btn:active { transform: scale(.97); }

/* ---------- 表格 ---------- */
table.tb { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tb th {
  background: var(--c-primary); color: #fff; padding: 8px 8px;
  text-align: left; font-weight: 600; white-space: nowrap;
}
table.tb td { padding: 8px 8px; border-bottom: 1px solid var(--c-line); }
table.tb tr:last-child td { border-bottom: none; }
.tb-wrap { overflow-x: auto; }

/* ---------- 指标卡 ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
@media (max-width: 640px) { .metrics { grid-template-columns: 1fr 1fr; } }
.metric {
  background: var(--c-card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 12px; text-align: center;
}
.metric .v { font-size: 22px; font-weight: 800; color: var(--c-primary); font-family: Arial, sans-serif; }
.metric .v.up { color: var(--c-danger); }
.metric .v.down { color: var(--c-ok); }
.metric .k { font-size: 11px; color: var(--c-sub); margin-top: 2px; }

/* ---------- 结果面板 ---------- */
.result-box {
  background: linear-gradient(135deg, #0B3D91, #1565C0);
  color: #fff; border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
}
.result-box .big { font-size: 28px; font-weight: 800; font-family: Arial, sans-serif; }
.result-box .tag {
  display: inline-block; background: var(--c-accent);
  padding: 2px 10px; border-radius: 14px; font-size: 12px; font-weight: 700;
  margin-left: 8px; vertical-align: middle;
}

/* ---------- 徽标 / 提示 ---------- */
.badge { display: inline-block; padding: 1px 8px; border-radius: 6px; font-size: 11px; font-weight: 700; }
.b-hot { background: #FFE9E0; color: var(--c-danger); }
.b-ok { background: #E5F3E8; color: var(--c-ok); }
.b-info { background: #E8F0FE; color: var(--c-primary); }
.note {
  background: #FFF8E6; border-left: 4px solid var(--c-accent);
  padding: 9px 12px; border-radius: 0 8px 8px 0;
  font-size: 12px; color: #7A5A00; margin: 10px 0;
}
.empty { text-align: center; color: var(--c-sub); font-size: 13px; padding: 24px 0; }

/* ---------- 模块导航卡 ---------- */
.mod-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .mod-grid { grid-template-columns: 1fr; } }
.mod {
  display: block; background: var(--c-card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 16px; text-decoration: none;
  color: var(--c-text); border-top: 4px solid var(--c-primary);
  transition: transform .15s;
}
.mod:active { transform: scale(.98); }
.mod .icon { font-size: 26px; }
.mod .t { font-weight: 800; font-size: 15px; margin: 6px 0 2px; color: var(--c-primary); }
.mod .d { font-size: 12px; color: var(--c-sub); }
.mod .tagline { margin-top: 8px; }

/* ---------- 打印 ---------- */
@media print {
  .topbar, .no-print { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: 1px solid #ddd; page-break-inside: avoid; }
  .wrap { max-width: 100%; padding: 0; }
}