.stream-hero {
  padding-top: clamp(54px, 8vw, 94px);
  padding-bottom: clamp(52px, 8vw, 88px);
  border-bottom: 1px solid var(--color-line);
}

.stream-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(36px, 7vw, 84px);
}

.stream-hero-copy {
  min-width: 0;
}

.stream-hero-copy h1 {
  max-width: 760px;
  margin-top: 18px;
}

.stream-title-sub {
  display: block;
  margin-top: 8px;
  color: var(--color-accent);
}

.stream-lead {
  max-width: 700px;
  margin-bottom: 28px;
  color: var(--color-ink-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.72;
}

.stream-lead strong {
  color: var(--color-ink);
}

.stream-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.stream-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.stream-facts span {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.stream-chart {
  min-width: 0;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-panel);
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.stream-chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-line);
}

.stream-route {
  position: relative;
  display: grid;
  gap: 8px;
}

.stream-route::before {
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 9px;
  width: 1px;
  background: var(--color-line);
  content: '';
}

.stream-route-row {
  position: relative;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 14px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
}

.stream-route-row.is-current {
  border-color: var(--color-accent);
  background: var(--color-canvas);
}

.stream-route-row strong {
  display: block;
  margin-bottom: 3px;
}

.stream-route-row p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
  font-size: 13px;
}

.stream-route-mark {
  position: relative;
  z-index: 1;
  width: 11px;
  height: 11px;
  margin-top: 7px;
  margin-left: 4px;
  border: 2px solid var(--color-panel);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.stream-chart-note {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.stream-panel-section {
  border-block: 1px solid var(--color-line);
  background: var(--color-panel);
}

.stream-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  -webkit-overflow-scrolling: touch;
}

.stream-table {
  width: 100%;
  min-width: var(--table-min-width);
  border-collapse: collapse;
  text-align: left;
}

.stream-table th,
.stream-table td {
  padding: 15px 16px;
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}

.stream-table th {
  background: var(--color-panel-strong);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.stream-table tbody tr:hover {
  background: var(--color-panel);
}

.stream-table tbody tr:last-child td {
  border-bottom: 0;
}

.matrix-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.matrix-notes article {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-canvas);
}

.matrix-notes h3 {
  margin-top: 9px;
  font-size: 18px;
}

.matrix-notes p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

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

.quality-card {
  min-width: 0;
  padding: clamp(22px, 4vw, 34px);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.quality-card h3 {
  margin-top: 10px;
}

.quality-card p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.quality-method {
  margin-top: 22px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-canvas);
}

.quality-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.quality-steps p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.quality-steps strong {
  display: block;
  margin-bottom: 6px;
  color: var(--color-ink);
}

.error-log {
  border-top: 1px solid var(--color-line);
}

.error-entry {
  display: grid;
  grid-template-columns: minmax(120px, 0.24fr) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 48px);
  padding: 26px 0;
  border-bottom: 1px solid var(--color-line);
}

.error-entry-key {
  display: flex;
  align-items: center;
  gap: 10px;
  align-self: start;
}

.error-entry h3 {
  font-size: 20px;
}

.error-entry p {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.device-checklist {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.device-checklist article {
  min-width: 0;
  padding: 20px;
  border-top: 2px solid var(--color-accent);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
}

.device-checklist h3 {
  margin-top: 9px;
  font-size: 18px;
}

.device-checklist p {
  margin-bottom: 0;
}

.stream-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  padding: clamp(26px, 5vw, 46px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.stream-next h2 {
  margin-bottom: 12px;
}

.stream-next p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.stream-next-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 960px) {
  .stream-hero-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-chart {
    width: 100%;
    max-width: 720px;
  }

  .matrix-notes,
  .quality-steps,
  .device-checklist {
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-next {
    grid-template-columns: minmax(0, 1fr);
  }

  .stream-next-links {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .stream-hero {
    padding-top: 38px;
  }

  .stream-title-sub {
    margin-top: 5px;
  }

  .stream-lead {
    font-size: 16px;
  }

  .quality-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .error-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .stream-hero-actions {
    align-items: stretch;
  }

  .stream-hero-actions .btn,
  .stream-next-links .btn {
    flex: 1 1 150px;
  }

  .stream-facts {
    align-items: stretch;
  }

  .stream-facts span {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .stream-chart {
    padding: 18px;
    background-size: 24px 24px;
  }

  .stream-chart-head {
    align-items: flex-start;
  }

  .stream-route-row {
    padding-right: 6px;
    padding-left: 6px;
  }

  .matrix-notes article,
  .quality-card,
  .quality-method,
  .device-checklist article {
    padding: 18px;
  }

  .stream-next-links {
    align-items: stretch;
  }
}