.stream-hero {
  position: relative;
  padding-top: 72px;
  padding-bottom: 72px;
  overflow: hidden;
  border-bottom: 1px solid var(--color-line);
  background:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px),
    var(--color-page);
  background-size: 42px 42px;
}

.stream-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 36%;
  height: 5px;
  background: var(--color-accent);
  content: "";
}

.stream-hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  align-items: center;
  gap: 64px;
}

.stream-hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.stream-hero-copy h1 {
  margin-top: 18px;
  margin-bottom: 24px;
}

.stream-hero-copy .lead {
  max-width: 660px;
}

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

.stream-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.stream-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.band-console {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  box-shadow: var(--shadow-card);
}

.band-console-head,
.console-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.band-scale {
  position: relative;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  height: 112px;
  align-items: start;
  margin-top: 15px;
  padding: 0 18px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-ink);
}

.band-scale i {
  height: 40px;
  border-left: 1px solid var(--color-ruler-tick);
}

.band-scale i:nth-child(odd) {
  height: 58px;
  border-color: var(--color-ruler-tick-strong);
}

.band-pointer {
  position: absolute;
  top: 0;
  bottom: 28px;
  left: 50%;
  width: 3px;
  background: var(--color-accent);
  transform: translateX(-50%);
}

.band-label {
  position: absolute;
  bottom: 12px;
  left: 50%;
  padding: 3px 9px;
  border-radius: var(--radius-xs);
  background: var(--color-accent);
  color: var(--color-on-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  transform: translateX(-50%);
}

.media-channels {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 7px;
  margin-top: 9px;
  margin-bottom: 18px;
}

.media-channel {
  display: flex;
  min-width: 0;
  min-height: 76px;
  align-items: flex-end;
  padding: 10px;
  overflow: hidden;
  border-radius: var(--radius-xs);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.channel-orange {
  background: var(--color-channel-orange);
  color: var(--color-on-dark);
}

.channel-sky {
  background: var(--color-channel-sky);
  color: var(--color-on-dark);
}

.channel-green {
  background: var(--color-channel-green);
}

.channel-rose {
  background: var(--color-channel-rose);
  color: var(--color-on-dark);
}

.channel-yellow {
  background: var(--color-channel-yellow);
}

.console-foot {
  padding-top: 15px;
  border-top: 1px solid var(--color-line);
}

.stream-document {
  padding-top: 26px;
  padding-bottom: var(--section-space);
}

.stream-document > .toc-tabs {
  margin-bottom: 26px;
}

.stream-section {
  padding-top: 72px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-line);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin-top: 12px;
}

.section-heading > p:last-child:not(.eyebrow) {
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.8;
}

.explain-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(280px, 0.58fr);
  gap: 28px;
  align-items: start;
}

.stream-prose {
  color: var(--color-ink);
  font-size: 17px;
  line-height: 1.9;
}

.stream-prose > * + * {
  margin-top: 1.15em;
}

.signal-stack {
  display: grid;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}

.signal-item {
  padding: 20px;
  border-bottom: 1px solid var(--color-line);
}

.signal-item:last-child {
  border-bottom: 0;
}

.signal-code,
.profile-tag {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.signal-item strong {
  display: block;
  margin-bottom: 6px;
}

.signal-item p {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.7;
}

.explain-grid + .callout,
.ip-compare + .callout,
.route-procedure + .callout {
  margin-top: 28px;
}

.stream-table {
  width: 100%;
  min-width: var(--compare-min-width);
  background: var(--color-page);
}

.stream-table th,
.stream-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

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

.stream-table td {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.65;
}

.stream-table td:first-child {
  color: var(--color-ink);
  font-weight: 800;
}

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

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

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

.status-mark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-ink);
  font-weight: 800;
  white-space: nowrap;
}

.status-mark::before {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  content: "";
}

.table-note {
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.75;
}

.ip-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.profile-card {
  min-width: 0;
  padding: 30px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
}

.profile-card:first-child {
  border-top: 4px solid var(--color-channel-sky);
}

.profile-card:last-child {
  border-top: 4px solid var(--color-channel-green);
}

.profile-card h3 {
  margin-bottom: 15px;
}

.profile-card > p {
  color: var(--color-muted);
  line-height: 1.85;
}

.profile-card ul {
  display: grid;
  gap: 10px;
  margin-top: 22px;
  list-style: none;
}

.profile-card li {
  display: flex;
  gap: 9px;
  color: var(--color-muted);
  font-size: 14px;
}

.profile-card li::before {
  flex: 0 0 auto;
  color: var(--color-success);
  font-weight: 900;
  content: "✓";
}

.quality-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 30px;
  align-items: start;
}

.quality-check {
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.quality-check h3 {
  margin-bottom: 22px;
  font-size: 22px;
}

.quality-check ol {
  display: grid;
  gap: 0;
  list-style: none;
}

.quality-check li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding-block: 15px;
  border-bottom: 1px solid var(--color-line);
}

.quality-check li:first-child {
  padding-top: 0;
}

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

.quality-check li span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.quality-check li p {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.65;
}

.quality-factors {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 30px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.quality-factors div {
  min-width: 0;
  padding: 20px;
  border-right: 1px solid var(--color-line);
}

.quality-factors div:last-child {
  border-right: 0;
}

.quality-factors strong,
.quality-factors span {
  display: block;
}

.quality-factors strong {
  margin-bottom: 7px;
  font-family: var(--font-mono);
}

.quality-factors span {
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

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

.error-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  padding-block: 28px;
  border-bottom: 1px solid var(--color-line);
}

.error-key {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.error-row h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.error-row p {
  max-width: 800px;
  color: var(--color-muted);
  line-height: 1.8;
}

.route-procedure {
  display: grid;
  gap: 12px;
  list-style: none;
}

.route-procedure li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-page);
}

.procedure-code {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: var(--radius-xs);
  background: var(--color-ink);
  color: var(--color-on-dark);
  font-family: var(--font-mono);
  font-weight: 900;
}

.route-procedure h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.route-procedure p {
  color: var(--color-muted);
  line-height: 1.8;
}

.stream-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 36px;
  margin-top: 26px;
  padding-right: 34px;
  padding-left: 34px;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--color-ink);
  color: var(--color-on-dark);
}

.stream-closing h2 {
  margin-top: 10px;
  color: var(--color-on-dark);
  font-size: clamp(28px, 4vw, 42px);
}

.stream-closing p:not(.eyebrow) {
  max-width: 700px;
  margin-top: 12px;
  color: var(--color-on-dark);
  line-height: 1.75;
}

.stream-closing .eyebrow {
  color: var(--color-on-dark);
}

.closing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.stream-closing .btn-primary {
  background: var(--color-page);
  color: var(--color-ink);
}

.stream-closing .btn-primary:hover {
  background: var(--color-accent);
  color: var(--color-on-dark);
}

.stream-closing .btn-secondary {
  border-color: var(--color-on-dark);
  background: var(--color-ink);
  color: var(--color-on-dark);
}

.stream-closing .btn-secondary:hover {
  background: var(--color-muted);
}

@media (max-width: 980px) {
  .stream-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .band-console {
    max-width: 720px;
  }

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

  .signal-stack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .signal-item {
    border-right: 1px solid var(--color-line);
    border-bottom: 0;
  }

  .signal-item:last-child {
    border-right: 0;
  }

  .quality-factors {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quality-factors div:nth-child(2) {
    border-right: 0;
  }

  .quality-factors div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--color-line);
  }

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

@media (max-width: 768px) {
  .stream-hero {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .stream-section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

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

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

  .signal-item {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .error-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .stream-closing {
    padding: 28px;
  }
}

@media (max-width: 640px) {
  .stream-hero-inner {
    gap: 40px;
  }

  .stream-hero-actions {
    display: grid;
  }

  .band-console {
    padding: 14px;
  }

  .band-scale {
    height: 92px;
    padding-inline: 12px;
  }

  .band-scale i {
    height: 32px;
  }

  .band-scale i:nth-child(odd) {
    height: 46px;
  }

  .media-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .media-channel {
    min-height: 54px;
  }

  .media-channel:last-child {
    grid-column: 1 / -1;
  }

  .console-foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .profile-card {
    padding: 22px;
  }

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

  .quality-factors div,
  .quality-factors div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--color-line);
  }

  .quality-factors div:last-child {
    border-bottom: 0;
  }

  .quality-check {
    padding: 20px;
  }

  .quality-check li {
    grid-template-columns: minmax(0, 1fr);
    gap: 5px;
  }

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

  .closing-links {
    display: grid;
  }
}

@media (max-width: 380px) {
  .stream-trust {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .media-channel:last-child {
    grid-column: auto;
  }

  .stream-closing {
    padding: 22px;
  }
}