.navlinks a[aria-current="page"] { color: var(--blue); }

.product-hero { background: var(--navy); color: #fff; padding: 64px 0 0; }
.product-hero .overline { color: #aaceff; }
.product-hero h1 { font-size: 44px; line-height: 1.3; letter-spacing: -2px; font-weight: 800; }
.product-hero p { color: #d5e0ec; margin-top: 12px; font-size: 16px; }
.product-tabs { display: flex; gap: 8px; margin-top: 40px; overflow-x: auto; }
.product-tabs button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  border-radius: 10px 10px 0 0;
  background: #203c58;
  color: #c6d5e6;
  padding: 18px 28px;
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.product-tabs button span { font-size: 12px; letter-spacing: .1em; color: #8fb2da; }
.product-tabs button:hover { background: #294d70; color: #fff; }
.product-tabs button[aria-selected="true"] { background: var(--paper); color: var(--ink); }
.product-tabs button[aria-selected="true"] span { color: var(--blue); }

.product-intro { text-align: center; margin-bottom: 44px; }
.product-kicker { font-size: 18px; font-weight: 700; color: var(--blue); margin-bottom: 8px; }
.product-intro h2 { font-size: 34px; line-height: 1.4; letter-spacing: -1.4px; }
.product-intro h2 span { color: var(--blue); }

.product-heading { text-align: center; margin-bottom: 36px; }
.product-heading.spaced { margin-top: 80px; }
.product-heading p { margin-top: 10px; font-size: 15px; }

.robo-overview { display: grid; grid-template-columns: 1fr minmax(0, 340px) 1fr; gap: 40px; align-items: center; }
.robo-photo { width: 100%; height: auto; border-radius: 16px; mix-blend-mode: multiply; }
.chip-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.chip-list li {
  background: #fff;
  border-radius: 14px;
  padding: 22px 16px;
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 6px 20px #142e480a;
}

.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.feature-card { background: var(--paper); border-radius: 14px; padding: 32px; }
.feature-num { display: inline-block; font-size: 13px; font-weight: 800; letter-spacing: .1em; color: var(--blue); margin-bottom: 14px; }
.feature-card h3 { font-size: 20px; margin-bottom: 12px; letter-spacing: -.5px; }
.feature-card p { font-size: 14px; line-height: 1.85; }

.wide-figure { width: 100%; height: auto; border-radius: 12px; }
.wide-figure.cert { background: #fff; }

.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; align-items: start; }
.spec-table { margin: 0; }
.spec-table > div { display: grid; grid-template-columns: 140px 1fr; gap: 8px; border-bottom: 1px solid var(--line); padding: 4px 0; }
.spec-table dt { background: #f0f2f5; border-radius: 6px; padding: 10px; text-align: center; font-size: 14px; font-weight: 600; }
.spec-table dd { margin: 0; padding: 10px 20px; font-size: 14px; color: var(--muted); align-self: center; }
.spec-table.single > div { grid-template-columns: 220px 1fr; }

.media-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
}
.media-card img { width: 100%; height: 100%; object-fit: cover; }
.media-card > div { padding: 40px 56px; }
.media-card h3 { font-size: 24px; margin-bottom: 18px; letter-spacing: -.6px; }
.media-card p { font-size: 15px; line-height: 1.9; }
.check-list { list-style: none; margin: 0; padding: 22px 26px; background: var(--paper); border-radius: 12px; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 28px; font-size: 15px; color: var(--ink); }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
}

.info-list { list-style: none; margin: 40px 0 0; padding: 0; display: grid; gap: 12px; }
.info-list li { background: #fff; border-radius: 12px; padding: 20px 24px; text-align: center; font-size: 15px; color: var(--muted); }
.info-list strong { color: var(--blue); font-weight: 700; }

.steam-range { background: #2369d8; padding: 0; }
.steam-range .wide-figure { max-width: 1240px; margin: 0 auto; border-radius: 0; }

.photo-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.photo-pair img { width: 100%; border-radius: 12px; }

.use-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0; }
.use-grid figure { margin: 0; background: var(--paper); border-radius: 12px; overflow: hidden; }
.use-grid img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.use-grid figcaption { padding: 16px; text-align: center; font-size: 15px; font-weight: 700; }

.reason-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.reason-grid div { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 22px; text-align: center; }
.reason-grid small { display: block; font-size: 14px; color: var(--ink); }
.reason-grid strong { display: block; font-size: 24px; color: var(--blue); margin-top: 2px; }
.reason-banner { margin-top: 28px; background: var(--blue); color: #fff; border-radius: 14px; padding: 28px; text-align: center; font-size: 15px; line-height: 1.9; }
.spectrum-card { margin-top: 16px; background: #fff; border-radius: 14px; padding: 44px 60px; text-align: center; }
.spectrum-card h3 { font-size: 20px; margin-bottom: 30px; }
.spectrum-card img { width: 100%; max-width: 760px; margin: 0 auto; }

.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.compare-grid figure { position: relative; margin: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #fff; }
.compare-grid figure.is-ours { border: 2px solid var(--blue); box-shadow: 0 10px 30px #1769e81f; }
.compare-grid img { width: 100%; }
.compare-tag {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  margin-top: 0;
  background: #6b7480;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 20px;
  white-space: nowrap;
}
.compare-grid .is-ours .compare-tag { background: var(--blue); }
.compare-grid figcaption { padding: 30px 16px 22px; text-align: center; font-size: 14px; color: var(--muted); }
.compare-grid figcaption strong { color: var(--ink); }

.product-cta .wrap { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.product-cta p { margin-top: 12px; font-size: 15px; }

@media (max-width: 1000px) {
  .robo-overview { grid-template-columns: 1fr 1fr; }
  .robo-photo { grid-column: 1 / -1; grid-row: 1; max-width: 300px; margin: 0 auto; }
  .media-card > div { padding: 32px; }
  .use-grid, .reason-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .product-hero { padding-top: 44px; }
  .product-hero h1 { font-size: 32px; }
  .product-hero p { font-size: 14px; }
  .product-tabs { margin-top: 28px; gap: 6px; }
  .product-tabs button { padding: 14px 16px; font-size: 14px; gap: 6px; }
  .product-tabs button span { display: none; }
  .product-kicker { font-size: 15px; }
  .product-intro h2 { font-size: 24px; letter-spacing: -1px; }
  .product-intro { margin-bottom: 30px; }
  .chip-list { gap: 10px; }
  .chip-list li { padding: 14px 10px; font-size: 13px; }
  .robo-overview { gap: 16px; }
  .feature-grid, .spec-grid, .photo-pair, .compare-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 24px; }
  .spec-table > div, .spec-table.single > div { grid-template-columns: 110px 1fr; }
  .spec-table dd { padding: 10px 12px; }
  .spec-grid .spec-table + .spec-table > div:first-child { border-top: 0; }
  .media-card { grid-template-columns: 1fr; }
  .media-card > div { padding: 24px; }
  .media-card h3 { font-size: 20px; }
  .media-card p br { display: none; }
  .info-list li { text-align: left; font-size: 14px; padding: 16px 18px; }
  .use-grid { gap: 12px; }
  .use-grid figcaption { font-size: 13px; padding: 12px 8px; }
  .reason-grid { gap: 12px; }
  .reason-grid strong { font-size: 20px; }
  .reason-banner { font-size: 14px; padding: 22px 18px; }
  .reason-banner br { display: none; }
  .spectrum-card { padding: 28px 16px; }
  .product-cta .wrap { display: block; }
  .product-cta .btn { margin-top: 24px; }
}