.series-v2 {
  --series-ink: #00183f;
  --series-muted: #59677c;
  --series-line: #d9e2ee;
  --series-soft: #f3f7fc;
}

.series-v2 .page-hero {
  min-height: 520px;
}

.series-v2 .page-hero .container {
  max-width: var(--container);
}

.series-v2 .page-hero h1 {
  max-width: 760px;
}

.series-v2 .page-hero p:not(.eyebrow) {
  max-width: 710px;
}

.series-v2 .series-intro-nav {
  border-bottom: 1px solid var(--series-line);
  background: #fff;
}

.series-v2 .series-intro-nav .container {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.series-v2 .series-intro-nav a {
  padding: 18px 20px;
  border-left: 1px solid var(--series-line);
  color: var(--series-ink);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

.series-v2 .series-intro-nav a:last-child {
  border-right: 1px solid var(--series-line);
}

.series-v2 .series-intro-nav a:hover {
  color: #9a7000;
  background: #fffaf0;
}

.series-v2 .series-heading {
  max-width: 980px;
  margin-bottom: 30px;
}

.series-v2 .series-heading .section-title {
  max-width: none;
  text-wrap: balance;
}

.series-v2 .series-heading .section-lede {
  max-width: 920px;
}

.series-v2 .fit-boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.series-v2 .fit-boundary-card {
  min-height: 180px;
  padding: 26px 28px;
  border: 1px solid var(--series-line);
  border-left: 4px solid #cbd7e7;
  border-radius: 10px;
  background: #fff;
}

.series-v2 .fit-boundary-card.is-suitable {
  border-left-color: var(--yellow);
}

.series-v2 .fit-boundary-card.is-caution {
  background: #fffdf8;
}

.series-v2 .fit-boundary-card span {
  display: block;
  margin-bottom: 10px;
  color: #a27500;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
}

.series-v2 .fit-boundary-card h3 {
  margin: 0 0 10px;
  color: var(--series-ink);
  font-size: 22px;
  line-height: 1.35;
}

.series-v2 .fit-boundary-card p {
  margin: 0;
  color: var(--series-muted);
  line-height: 1.72;
}

.series-v2 .configuration-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--series-line);
  border-bottom: 1px solid var(--series-line);
}

.series-v2 .configuration-item {
  min-height: 230px;
  padding: 28px 24px;
  border-right: 1px solid var(--series-line);
}

.series-v2 .configuration-item:first-child {
  border-left: 1px solid var(--series-line);
}

.series-v2 .configuration-item span {
  color: #a27500;
  font-size: 12px;
  font-weight: 900;
}

.series-v2 .configuration-item h3 {
  margin: 24px 0 12px;
  color: var(--series-ink);
  font-size: 21px;
}

.series-v2 .configuration-item p {
  margin: 0;
  color: var(--series-muted);
  font-size: 14px;
  line-height: 1.7;
}

.series-v2 .coverage-note {
  margin: 20px 0 0;
  padding: 16px 20px;
  border-left: 4px solid var(--yellow);
  background: #fff9e8;
  color: #5f6878;
  line-height: 1.65;
}

.series-v2 .brand-coverage-grid {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: start;
}

.series-v2 .power-band-list,
.series-v2 .engine-brand-list {
  display: grid;
  gap: 12px;
}

.series-v2 .power-band-item {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 18px;
  padding: 19px 20px;
  border: 1px solid var(--series-line);
  border-radius: 8px;
  background: #fff;
}

.series-v2 .power-band-item strong {
  color: var(--series-ink);
  font-size: 18px;
}

.series-v2 .power-band-item span {
  color: var(--series-muted);
  font-size: 13px;
  line-height: 1.6;
}

.series-v2 .engine-brand-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.series-v2 .engine-brand-item {
  min-height: 94px;
  padding: 18px;
  border: 1px solid var(--series-line);
  border-radius: 8px;
  background: #fff;
}

.series-v2 .engine-brand-item strong {
  display: block;
  margin-bottom: 5px;
  color: var(--series-ink);
}

.series-v2 .engine-brand-item span {
  color: var(--series-muted);
  font-size: 12px;
  line-height: 1.5;
}

.series-v2 .anatomy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr);
  gap: 34px;
  align-items: stretch;
}

.series-v2 .anatomy-media {
  overflow: hidden;
  min-height: 520px;
  border-radius: 10px;
  background: var(--series-ink);
}

.series-v2 .anatomy-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.series-v2 .anatomy-media--contain img {
  object-fit: contain;
  background: #eef3f9;
}

.series-v2 .anatomy-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--series-line);
  border-left: 1px solid var(--series-line);
}

.series-v2 .anatomy-item {
  min-height: 170px;
  padding: 22px;
  border-right: 1px solid var(--series-line);
  border-bottom: 1px solid var(--series-line);
  background: #fff;
}

.series-v2 .anatomy-item span {
  color: #aa7b00;
  font-size: 12px;
  font-weight: 900;
}

.series-v2 .anatomy-item h3 {
  margin: 12px 0 7px;
  color: var(--series-ink);
  font-size: 18px;
}

.series-v2 .anatomy-item p {
  margin: 0;
  color: var(--series-muted);
  font-size: 13px;
  line-height: 1.58;
}

.series-v2 .selection-condition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.series-v2 .selection-condition {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--series-line);
  border-radius: 8px;
  background: #fff;
}

.series-v2 .selection-condition span {
  color: #a27500;
  font-size: 12px;
  font-weight: 900;
}

.series-v2 .selection-condition h3 {
  margin: 17px 0 8px;
  color: var(--series-ink);
  font-size: 19px;
}

.series-v2 .selection-condition p {
  margin: 0;
  color: var(--series-muted);
  font-size: 13px;
  line-height: 1.65;
}

.series-v2 .series-comparison {
  overflow-x: auto;
  border: 1px solid var(--series-line);
  border-radius: 10px;
  background: #fff;
}

.series-v2 .series-comparison table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

.series-v2 .series-comparison th,
.series-v2 .series-comparison td {
  padding: 18px 20px;
  border-right: 1px solid var(--series-line);
  border-bottom: 1px solid var(--series-line);
  text-align: left;
  vertical-align: top;
}

.series-v2 .series-comparison th:last-child,
.series-v2 .series-comparison td:last-child {
  border-right: 0;
}

.series-v2 .series-comparison tr:last-child td {
  border-bottom: 0;
}

.series-v2 .series-comparison thead th {
  background: var(--series-ink);
  color: #fff;
  font-size: 15px;
}

.series-v2 .series-comparison tbody th {
  width: 150px;
  color: var(--series-ink);
  font-size: 14px;
}

.series-v2 .series-comparison td {
  color: var(--series-muted);
  font-size: 13px;
  line-height: 1.6;
}

.series-v2 .task-scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.series-v2 .task-scenario {
  min-height: 220px;
  padding: 28px;
  border-top: 4px solid var(--yellow);
  background: #fff;
  box-shadow: 0 12px 34px rgba(0, 24, 63, .08);
}

.series-v2 .task-scenario span {
  color: #a27500;
  font-size: 12px;
  font-weight: 900;
}

.series-v2 .task-scenario h3 {
  margin: 20px 0 12px;
  color: var(--series-ink);
  font-size: 21px;
}

.series-v2 .task-scenario p {
  margin: 0;
  color: var(--series-muted);
  line-height: 1.7;
}

.series-v2 .quality-teaser {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 36px;
  align-items: center;
  padding: 42px;
  border-radius: 12px;
  background: linear-gradient(120deg, #00183f 0%, #06347a 100%);
  color: #fff;
}

.series-v2 .quality-teaser h2 {
  margin: 10px 0 14px;
  color: #fff;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.14;
}

.series-v2 .quality-teaser p {
  margin: 0;
  color: rgba(255,255,255,.76);
  line-height: 1.7;
}

.series-v2 .quality-teaser-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.series-v2 .quality-teaser-list span {
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  background: rgba(255,255,255,.06);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.series-v2 .quality-teaser .section-actions {
  margin-top: 20px;
}

@media (max-width: 980px) {
  .series-v2 .series-intro-nav .container,
  .series-v2 .configuration-grid,
  .series-v2 .selection-condition-grid,
  .series-v2 .task-scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .series-v2 .brand-coverage-grid,
  .series-v2 .anatomy-layout,
  .series-v2 .quality-teaser {
    grid-template-columns: 1fr;
  }

  .series-v2 .anatomy-media {
    min-height: 420px;
  }
}

@media (max-width: 680px) {
  .series-v2 .page-hero {
    min-height: auto;
  }

  .series-v2 .series-intro-nav .container,
  .series-v2 .fit-boundary-grid,
  .series-v2 .configuration-grid,
  .series-v2 .selection-condition-grid,
  .series-v2 .task-scenario-grid,
  .series-v2 .engine-brand-list,
  .series-v2 .quality-teaser-list,
  .series-v2 .anatomy-list {
    grid-template-columns: 1fr;
  }

  .series-v2 .series-intro-nav a,
  .series-v2 .configuration-item,
  .series-v2 .configuration-item:first-child {
    border-right: 1px solid var(--series-line);
    border-bottom: 1px solid var(--series-line);
  }

  .series-v2 .power-band-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .series-v2 .anatomy-media {
    min-height: 300px;
  }

  .series-v2 .quality-teaser {
    padding: 28px 22px;
  }
}