.baiipro-guide {
  --ink: #16212d;
  --muted: #5d6875;
  --line: #d7dee7;
  --panel: #fff;
  --soft: #f5f7fa;
  --lcd: #bac7a1;
  --accent: #0f6878;
  --gold: #b18410;
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 18px 56px;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

.baiipro-guide * {
  box-sizing: border-box;
}

.baiipro-guide a {
  color: var(--accent);
}

.baiipro-guide h1,
.baiipro-guide h2,
.baiipro-guide h3 {
  margin: 0;
  line-height: 1.18;
}

.baiipro-guide .baiipro-guide-hero h1 {
  max-width: 760px;
  font-size: 40px !important;
}

.baiipro-guide h2 {
  padding-top: 10px;
  font-size: clamp(24px, 3vw, 34px);
}

.baiipro-guide h3 {
  font-size: 20px;
}

.baiipro-guide p {
  margin: 10px 0;
}

.baiipro-guide .baiipro-guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) !important;
  grid-template-rows: auto !important;
  gap: 12px;
  align-items: start;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #eef6f8 100%);
}

.baiipro-guide-eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.baiipro-guide-lede {
  max-width: 780px;
  color: #334351;
  font-size: 18px;
}

.baiipro-guide-shortcodes {
  display: grid;
  gap: 10px;
}

.baiipro-guide-code {
  display: block;
  overflow-x: auto;
  padding: 10px 12px;
  border: 1px solid #cdd6df;
  border-radius: 6px;
  background: #111820;
  color: #f5f7fa;
  font: 13px/1.4 "Courier New", monospace;
}

.baiipro-guide-toc {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  margin: 22px 0 34px;
}

.baiipro-guide-toc a {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.baiipro-guide-section {
  margin-top: 28px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.baiipro-guide-section > p,
.baiipro-guide-muted {
  color: var(--muted);
}

.baiipro-guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.baiipro-guide .baiipro-guide-grid.baiipro-guide-worksheet-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.baiipro-guide-card,
.baiipro-guide-note,
.baiipro-guide-example,
.baiipro-guide-formula {
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
}

.baiipro-guide-card,
.baiipro-guide-example {
  border: 1px solid #ccd8df;
  background: var(--soft);
}

.baiipro-guide-note {
  border: 1px solid #dacfa8;
  background: #fff9e8;
}

.baiipro-guide-formula {
  border: 1px solid #c5dfe5;
  background: #f0f9fb;
}

.baiipro-guide-formula .katex-display {
  margin: 8px 0;
  overflow-x: auto;
  overflow-y: hidden;
}

.baiipro-guide-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  margin: 8px 0;
}

.baiipro-guide-key {
  display: inline-flex;
  min-width: 38px;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border: 1px solid #0e1113;
  border-radius: 6px 6px 9px 9px;
  background: linear-gradient(#5f676b, #22282b);
  box-shadow: inset 0 1px 0 #91989b, 0 2px 0 #070909;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
}

.baiipro-guide-key.is-second {
  border-color: #725c00;
  background: linear-gradient(#ffe56b, #cda400);
  color: #151515;
}

.baiipro-guide-key.is-white {
  background: linear-gradient(#ffffff, #b9bec2);
  color: #111;
}

.baiipro-guide-key.is-op {
  min-width: 34px;
  font-size: 15px;
}

.baiipro-guide-lcd {
  display: inline-flex;
  min-width: 180px;
  min-height: 38px;
  align-items: center;
  justify-content: flex-end;
  margin: 7px 0;
  padding: 7px 10px;
  border: 3px solid #2d3436;
  border-radius: 5px;
  background: var(--lcd);
  color: #162017;
  font: 700 18px/1.1 "Courier New", monospace;
  white-space: nowrap;
}

.baiipro-guide-step {
  display: grid;
  grid-template-columns: minmax(190px, .75fr) minmax(220px, 1fr) minmax(190px, .8fr);
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.baiipro-guide-step:first-child {
  border-top: 0;
}

.baiipro-guide-table-wrap {
  overflow-x: auto;
  margin-top: 14px;
}

.baiipro-guide table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 14px;
}

.baiipro-guide th,
.baiipro-guide td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.baiipro-guide th {
  background: #edf2f5;
}

.baiipro-guide ul,
.baiipro-guide ol {
  padding-left: 22px;
}

.baiipro-guide li + li {
  margin-top: 5px;
}

@media (max-width: 760px) {
  .baiipro-guide {
    padding: 20px 12px 40px;
  }

  .baiipro-guide-hero,
  .baiipro-guide-step {
    grid-template-columns: 1fr;
  }

  .baiipro-guide .baiipro-guide-hero h1 {
    font-size: 32px !important;
  }

  .baiipro-guide .baiipro-guide-grid.baiipro-guide-worksheet-grid {
    grid-template-columns: minmax(0, 1fr) !important;
  }

  .baiipro-guide-hero,
  .baiipro-guide-section {
    padding: 18px;
  }

  .baiipro-guide-lcd {
    max-width: 100%;
    min-width: 0;
    font-size: 16px;
  }
}