.stream-hero {
  padding-top: clamp(24px, 4vw, 52px);
  padding-bottom: clamp(52px, 7vw, 92px);
}

.stream-hero-grid {
  display: grid;
  min-height: 650px;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-hero);
  background: var(--color-panel);
}

.stream-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 650px;
  padding-top: 64px;
  padding-bottom: 64px;
  padding-left: clamp(32px, 5vw, 72px);
}

.stream-hero-copy h1 {
  max-width: 620px;
  margin-top: 20px;
  margin-bottom: 0;
}

.stream-hero-lead {
  max-width: 610px;
  margin-top: 26px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: clamp(17px, 1.7vw, 20px);
}

.stream-slice {
  position: relative;
  min-height: 650px;
  align-self: stretch;
  overflow: hidden;
  background: var(--color-accent-pale);
}

.stream-slice::before,
.stream-slice::after {
  position: absolute;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  content: "";
}

.stream-slice::before {
  width: 190px;
  height: 190px;
  top: -66px;
  right: -48px;
}

.stream-slice::after {
  width: 108px;
  height: 108px;
  bottom: 48px;
  left: -32px;
}

.stream-slice svg {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(680px, 108%);
  max-width: none;
  transform: translate(-50%, -50%);
}

.slice-shell {
  fill: var(--color-accent);
  stroke: var(--color-accent-dark);
  stroke-width: 3;
}

.slice-core {
  fill: var(--color-white);
  stroke: var(--color-accent-soft);
  stroke-width: 18;
}

.slice-divider {
  fill: none;
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-width: 5;
}

.slice-hub {
  fill: var(--color-accent-soft);
  stroke: var(--color-accent-dark);
  stroke-width: 4;
}

.slice-tunnel {
  fill: none;
  stroke: var(--color-text);
  stroke-linecap: round;
  stroke-width: 24;
}

.slice-node {
  fill: var(--color-white);
  stroke: var(--color-accent-dark);
  stroke-width: 4;
}

.stream-slice-note {
  position: absolute;
  z-index: 3;
  right: clamp(18px, 4vw, 48px);
  bottom: clamp(24px, 5vw, 62px);
  display: grid;
  width: min(280px, calc(100% - 36px));
  gap: 7px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-white);
  box-shadow: var(--shadow-bubble);
}

.stream-slice-note .badge {
  width: fit-content;
}

.stream-slice-note strong {
  font-size: 17px;
}

.stream-slice-note small {
  color: var(--color-muted);
  line-height: 1.55;
}

.stream-toc-wrap {
  position: relative;
  z-index: 5;
}

.stream-article {
  overflow-x: clip;
}

.stream-section-grid {
  display: grid;
  grid-template-columns: minmax(210px, 0.34fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 104px);
}

.stream-section-index {
  align-self: start;
}

.stream-section-index > span {
  display: block;
  margin-bottom: 12px;
  color: var(--color-accent-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.stream-section-index h2 {
  font-size: clamp(30px, 3.6vw, 48px);
}

.stream-section-body {
  max-width: 900px;
}

.stream-section-body > p {
  font-size: 17px;
}

.stream-section-body h3 {
  margin-top: 44px;
  margin-bottom: 14px;
  font-size: clamp(22px, 2.4vw, 29px);
}

.stream-alt-section {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.stream-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  background: var(--color-white);
}

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

.stream-table th {
  background: var(--color-panel-strong);
  color: var(--color-text);
  font-size: 12px;
  font-weight: 850;
}

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

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

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

.error-table {
  min-width: 820px;
}

.stream-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
  margin-bottom: 34px;
}

.stream-compare-item {
  padding: clamp(22px, 4vw, 32px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-white);
}

.stream-compare-item h3 {
  margin-top: 20px;
  margin-bottom: 10px;
  font-size: 23px;
}

.stream-compare-item p {
  color: var(--color-muted);
}

.quality-path {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
  margin-bottom: 38px;
}

.quality-path > div {
  position: relative;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-white);
}

.quality-path > div + div::before {
  position: absolute;
  top: 36px;
  left: -13px;
  width: 13px;
  border-top: 2px dashed var(--color-accent);
  content: "";
}

.quality-mark {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-weight: 850;
}

.quality-path strong {
  display: block;
}

.quality-path p {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 14px;
}

.stream-steps {
  display: grid;
  gap: 18px;
  padding-left: 0;
  counter-reset: stream-step;
  list-style: none;
}

.stream-steps li {
  position: relative;
  min-height: 120px;
  padding: 24px 24px 24px 88px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-white);
  counter-increment: stream-step;
}

.stream-steps li::before {
  position: absolute;
  top: 25px;
  left: 24px;
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  content: counter(stream-step);
  font-family: var(--font-mono);
  font-weight: 850;
}

.stream-steps h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 22px;
}

.stream-steps p {
  color: var(--color-muted);
}

.stream-end-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.stream-end-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-white);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.stream-end-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.stream-end-card > span {
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.stream-end-card h3 {
  margin-top: 18px;
  margin-bottom: 10px;
}

.stream-end-card p {
  color: var(--color-muted);
}

.stream-end-card strong {
  margin-top: auto;
  color: var(--color-accent-dark);
}

@media (max-width: 980px) {
  .stream-hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .stream-hero-copy {
    max-width: none;
    padding-right: var(--gutter);
    padding-left: var(--gutter);
  }

  .stream-slice {
    min-height: 520px;
  }

  .stream-section-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .stream-section-index {
    max-width: 700px;
  }

  .quality-path {
    grid-template-columns: 1fr;
  }

  .quality-path > div + div::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .stream-hero {
    padding-top: 16px;
  }

  .stream-hero-grid {
    border-radius: var(--radius-card);
  }

  .stream-hero-copy {
    padding-top: 36px;
    padding-bottom: 36px;
  }

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

  .stream-slice {
    min-height: 410px;
  }

  .stream-slice svg {
    width: 560px;
  }

  .stream-section-body > p {
    font-size: 16px;
  }

  .stream-compare,
  .stream-end-links {
    grid-template-columns: 1fr;
  }

  .stream-steps li {
    padding: 78px 20px 22px;
  }

  .stream-steps li::before {
    top: 20px;
    left: 20px;
  }
}

@media (max-width: 480px) {
  .stream-slice {
    min-height: 360px;
  }

  .stream-slice svg {
    top: 44%;
    width: 470px;
  }

  .stream-slice-note {
    right: 14px;
    bottom: 14px;
    width: calc(100% - 28px);
  }

  .stream-section-index h2 {
    font-size: 30px;
  }

  .stream-compare-item,
  .quality-path > div {
    padding: 20px;
  }
}