.streaming-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  padding-top: clamp(72px, 9vw, 118px);
  padding-bottom: clamp(72px, 10vw, 126px);
  background:
    radial-gradient(52% 42% at 72% 42%, var(--color-horizon-glow), var(--color-clear)),
    linear-gradient(180deg, var(--color-sky), var(--color-bg) 58%, var(--color-road-mid));
}

.streaming-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--color-border);
}

.streaming-hero-grid {
  position: absolute;
  inset: 0;
  max-width: 100%;
  overflow: hidden;
  pointer-events: none;
}

.streaming-hero-grid::before,
.streaming-hero-grid::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  opacity: .65;
  background: linear-gradient(180deg, var(--color-clear), var(--color-grid), var(--color-clear));
}

.streaming-hero-grid::before {
  left: 22%;
  transform: rotate(16deg);
}

.streaming-hero-grid::after {
  right: 22%;
  transform: rotate(-16deg);
}

.stream-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44%;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--color-horizon), var(--color-clear));
}

.stream-line-a {
  transform: rotate(12deg);
}

.stream-line-b {
  transform: rotate(-8deg);
}

.stream-line-c {
  transform: rotate(2deg);
}

.streaming-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .72fr);
  gap: clamp(42px, 7vw, 88px);
  align-items: center;
}

.streaming-hero-copy {
  max-width: 720px;
}

.streaming-hero h1 {
  max-width: 700px;
  margin: 24px 0 0;
}

.streaming-title-tail {
  color: var(--color-accent);
}

.streaming-lede {
  max-width: 700px;
  margin: 24px 0 0;
  font-size: 18px;
  line-height: 1.85;
}

.streaming-actions {
  margin-top: 30px;
}

.streaming-signal {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(145deg, var(--color-panel), var(--color-panel-recessed));
}

.streaming-signal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 28px;
  width: 96px;
  height: 3px;
  background: var(--color-accent);
}

.signal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--color-border);
}

.signal-label {
  color: var(--color-text-muted);
  font-size: 12px;
  letter-spacing: .1em;
}

.signal-flow {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
}

.signal-flow li {
  position: relative;
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 14px;
  padding-top: 20px;
}

.signal-flow li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 31px;
  bottom: -9px;
  left: 5px;
  width: 1px;
  background: var(--color-border);
}

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

.signal-flow strong {
  color: var(--color-text);
  font-size: 16px;
}

.signal-flow p {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.65;
}

.streaming-document {
  padding-top: 42px;
  padding-bottom: var(--section-space);
}

.streaming-section {
  padding-top: clamp(64px, 8vw, 96px);
  padding-bottom: clamp(64px, 8vw, 96px);
  border-bottom: 1px solid var(--color-border);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 38px;
}

.section-heading h2 {
  margin: 14px 0 18px;
}

.section-heading p {
  margin-bottom: 0;
  font-size: 17px;
  line-height: 1.9;
}

.streaming-table {
  min-width: 900px;
}

.streaming-table td:last-child {
  min-width: 220px;
}

.explain-grid,
.quality-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}

.explain-copy p,
.quality-copy p {
  font-size: 17px;
  line-height: 1.95;
}

.judgement-panel h3 {
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-weight: 400;
}

.judgement-list {
  display: grid;
  margin: 0;
}

.judgement-list div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
}

.judgement-list dt {
  color: var(--color-text);
  font-weight: 700;
}

.judgement-list dd {
  margin: 0;
  color: var(--color-text-muted);
  line-height: 1.7;
}

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

.ip-column {
  padding-top: 36px;
  padding-bottom: 36px;
}

.ip-column:first-child {
  padding-right: clamp(26px, 5vw, 60px);
  border-right: 1px solid var(--color-border);
}

.ip-column:last-child {
  padding-left: clamp(26px, 5vw, 60px);
}

.ip-column h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 400;
}

.ip-column p {
  margin-bottom: 0;
  font-size: 16px;
  line-height: 1.9;
}

.ip-comparison + p {
  max-width: 920px;
  margin: 32px 0 0;
  font-size: 17px;
  line-height: 1.9;
}

.quality-checklist {
  display: grid;
  gap: 0;
  margin: 0;
  padding-top: 18px;
  padding-bottom: 18px;
  list-style: none;
}

.quality-checklist li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

.quality-checklist li:last-child {
  border-bottom: 0;
}

.quality-checklist strong {
  color: var(--color-text);
}

.quality-checklist span {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.65;
}

.lane-guide {
  border-top: 1px solid var(--color-border);
}

.lane-guide-row {
  display: grid;
  grid-template-columns: 32% 1fr;
  gap: clamp(28px, 6vw, 72px);
  padding: 36px 0;
  border-bottom: 1px solid var(--color-border);
}

.lane-guide-name h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
}

.lane-guide-row p {
  margin: 2px 0 0;
  font-size: 16px;
  line-height: 1.9;
}

.error-table {
  min-width: 860px;
}

.error-table td {
  line-height: 1.65;
  vertical-align: top;
}

.error-sequence {
  max-width: 900px;
  margin-top: 42px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-panel-recessed);
}

.error-sequence h3 {
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-weight: 400;
}

.error-sequence ol {
  display: grid;
  gap: 14px;
  margin: 0;
}

.error-sequence li {
  padding-left: 7px;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.error-sequence strong {
  color: var(--color-text);
}

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

.account-item {
  padding: 34px 0;
  border-bottom: 1px solid var(--color-border);
}

.account-item:nth-child(odd) {
  padding-right: clamp(24px, 5vw, 58px);
  border-right: 1px solid var(--color-border);
}

.account-item:nth-child(even) {
  padding-left: clamp(24px, 5vw, 58px);
}

.account-item h3 {
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 400;
}

.account-item p {
  margin-bottom: 0;
  line-height: 1.85;
}

.streaming-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: center;
  margin-top: 64px;
  padding-right: clamp(24px, 5vw, 52px);
  padding-left: clamp(24px, 5vw, 52px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: linear-gradient(135deg, var(--color-panel), var(--color-panel-recessed));
  box-shadow: inset 0 1px 0 var(--color-white), 0 22px 48px var(--color-shadow-soft);
}

.streaming-next h2 {
  margin: 14px 0;
  font-size: clamp(32px, 4vw, 44px);
}

.streaming-next p {
  max-width: 760px;
  margin-bottom: 0;
}

@media (max-width: 940px) {
  .streaming-hero-inner,
  .explain-grid,
  .quality-layout {
    grid-template-columns: 1fr;
  }

  .streaming-hero-copy {
    max-width: 800px;
  }

  .streaming-signal {
    max-width: 680px;
  }

  .streaming-next {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .streaming-hero {
    padding-top: 56px;
    padding-bottom: 64px;
  }

  .streaming-hero-grid {
    display: none;
  }

  .streaming-lede {
    font-size: 16px;
  }

  .streaming-document {
    padding-top: 24px;
  }

  .streaming-section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .ip-comparison,
  .account-grid {
    grid-template-columns: 1fr;
  }

  .ip-column:first-child,
  .account-item:nth-child(odd) {
    padding-right: 0;
    border-right: 0;
  }

  .ip-column:last-child,
  .account-item:nth-child(even) {
    padding-left: 0;
  }

  .ip-column:first-child {
    border-bottom: 1px solid var(--color-border);
  }

  .lane-guide-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .judgement-list div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .streaming-next {
    margin-top: 48px;
  }
}

@media (max-width: 420px) {
  .signal-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .streaming-signal {
    padding: 22px;
  }

  .streaming-next {
    padding-right: 20px;
    padding-left: 20px;
  }
}