.guide-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: 510px;
  padding: clamp(34px, 6vw, 76px);
  overflow: hidden;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 88% 18%, var(--color-yellow-soft), transparent 24%),
    radial-gradient(circle at 14% 92%, var(--color-blue-soft), transparent 35%),
    var(--color-white-soft);
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(24px) saturate(130%);
}

.guide-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-map-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-map-grid) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to right, transparent, black 56%, black);
  opacity: 0.7;
}

.guide-hero-copy,
.guide-route {
  position: relative;
  z-index: 1;
}

.guide-hero-copy h1 {
  max-width: 760px;
  margin-top: 18px;
  font-size: clamp(44px, 5.2vw, 64px);
}

.guide-lead {
  max-width: 690px;
  color: var(--color-text-muted);
  font-size: 17px;
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.guide-route {
  min-height: 330px;
  padding: 23px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--color-panel-blue);
  box-shadow: var(--shadow-card);
  transform: rotate(1deg);
}

.guide-route::after {
  position: absolute;
  right: -64px;
  bottom: -78px;
  width: 210px;
  height: 210px;
  content: "";
  border-radius: 50%;
  background: var(--color-white-faint);
  box-shadow: inset 0 0 0 34px var(--color-blue-faint);
}

.guide-route-head {
  display: flex;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: 0.08em;
}

.guide-route svg {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-top: 25px;
  color: var(--color-accent-dark);
}

.guide-route-line {
  fill: none;
  stroke: var(--color-map-line);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 10 10;
}

.guide-route-line-soft {
  fill: none;
  stroke: var(--color-blue-medium);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 5 9;
}

.guide-route-hub {
  fill: var(--color-accent);
  stroke: var(--color-white-strong);
  stroke-width: 7;
}

.guide-route-node {
  fill: var(--color-panel);
  stroke: var(--color-accent);
  stroke-width: 5;
}

.guide-route-end {
  fill: var(--color-warn);
  stroke: var(--color-white-strong);
  stroke-width: 7;
}

.guide-route-labels {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 5px;
  margin-top: 4px;
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 680;
  text-align: center;
}

.guide-fact-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-border);
  box-shadow: var(--shadow-card);
}

.guide-fact-strip div {
  display: flex;
  min-height: 92px;
  flex-direction: column;
  justify-content: center;
  padding: 18px 22px;
  background: var(--color-panel);
}

.guide-fact-strip strong {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 17px;
}

.guide-fact-strip span {
  color: var(--color-text-muted);
  font-size: 12px;
}

.guide-shell {
  padding-bottom: var(--section-space);
}

.guide-shell .toc-tabs {
  margin-bottom: 54px;
}

.guide-flow {
  position: relative;
  width: 100%;
  max-width: 920px;
  margin-inline: auto;
}

.guide-flow::before {
  position: absolute;
  top: 34px;
  bottom: 80px;
  left: 34px;
  width: 2px;
  content: "";
  background: linear-gradient(to bottom, var(--color-accent), var(--color-blue-medium), var(--color-border));
}

.guide-stage {
  position: relative;
  margin-bottom: 30px;
  padding: clamp(26px, 4.8vw, 50px) clamp(22px, 5vw, 58px) clamp(30px, 5vw, 54px) clamp(88px, 10vw, 116px);
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.guide-stage:nth-child(even) {
  background:
    radial-gradient(circle at 96% 4%, var(--color-blue-faint), transparent 28%),
    var(--color-panel);
}

.guide-stage:last-child {
  margin-bottom: 0;
}

.stage-heading {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.stage-heading h2 {
  margin-bottom: 0;
  font-size: clamp(29px, 4vw, 42px);
}

.stage-mark {
  position: absolute;
  top: 46px;
  left: 20px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 29px;
  height: 29px;
  border-radius: 50%;
  color: var(--color-panel);
  background: var(--color-accent);
  box-shadow: 0 0 0 8px var(--color-panel-blue);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 780;
}

.stage-kicker {
  display: block;
  margin-bottom: 6px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.12em;
}

.guide-stage p {
  color: var(--color-text-muted);
}

.guide-stage > .button {
  margin-top: 8px;
}

.platform-path {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.platform-path article {
  position: relative;
  padding: 25px 27px;
  overflow: hidden;
  border-left: 5px solid var(--color-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: var(--color-panel-soft);
}

.platform-path article:nth-child(even) {
  border-left-color: var(--color-success);
  background: var(--color-panel-blue);
}

.platform-path h3 {
  margin-bottom: 13px;
  font-size: 22px;
}

.platform-path p:last-child {
  margin-bottom: 0;
}

.guide-inline-action {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
  padding: 22px 24px;
  border-radius: var(--radius-lg);
  background: var(--color-panel-blue);
}

.guide-inline-action strong {
  color: var(--color-accent-dark);
}

.guide-inline-action p {
  margin: 4px 0 0;
  font-size: 13px;
}

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

.verification-board > div {
  padding: 21px;
  border-radius: var(--radius-lg);
  background: var(--color-panel-soft);
}

.verification-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 31px;
  height: 31px;
  margin-bottom: 13px;
  border-radius: 50%;
  color: var(--color-panel);
  background: var(--color-success);
  font-family: var(--font-mono);
  font-weight: 800;
}

.verification-board strong {
  display: block;
  margin-bottom: 6px;
}

.verification-board p {
  margin: 0;
  font-size: 13px;
}

.finish-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 26px;
  margin-top: 32px;
  padding: clamp(24px, 4vw, 38px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 90% 12%, var(--color-yellow-soft), transparent 30%),
    var(--color-panel-blue);
}

.finish-panel h3 {
  margin-top: 13px;
  margin-bottom: 8px;
}

.finish-panel p {
  margin-bottom: 0;
}

@media (max-width: 960px) {
  .guide-hero {
    grid-template-columns: 1fr;
  }

  .guide-route {
    min-height: 290px;
    transform: none;
  }

  .guide-fact-strip {
    grid-template-columns: 1fr 1fr;
  }

  .verification-board {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .guide-hero {
    min-height: auto;
    padding: 28px 20px 22px;
    border-radius: var(--radius-lg);
  }

  .guide-hero-copy h1 {
    font-size: clamp(38px, 11vw, 48px);
  }

  .guide-lead {
    font-size: 15px;
  }

  .guide-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .guide-actions .button {
    width: 100%;
  }

  .guide-route {
    min-height: 220px;
    padding: 18px 14px;
    border-radius: var(--radius-lg);
  }

  .guide-route svg {
    margin-top: 8px;
  }

  .guide-route-labels {
    font-size: 9px;
  }

  .guide-fact-strip {
    grid-template-columns: 1fr;
  }

  .guide-fact-strip div {
    min-height: 78px;
  }

  .guide-shell .toc-tabs {
    margin-bottom: 32px;
  }

  .guide-flow::before {
    left: 25px;
  }

  .guide-stage {
    margin-bottom: 18px;
    padding: 28px 19px 32px 61px;
    border-radius: var(--radius-lg);
  }

  .stage-mark {
    top: 37px;
    left: 11px;
    width: 27px;
    height: 27px;
    box-shadow: 0 0 0 6px var(--color-panel-blue);
  }

  .stage-heading {
    margin-bottom: 20px;
  }

  .stage-heading h2 {
    font-size: 29px;
  }

  .platform-path article {
    padding: 21px 17px;
  }

  .platform-path h3 {
    font-size: 20px;
  }

  .guide-inline-action,
  .finish-panel {
    grid-template-columns: 1fr;
  }

  .guide-inline-action .button,
  .finish-panel .button {
    width: 100%;
  }
}

@media (max-width: 390px) {
  .guide-stage {
    padding-right: 16px;
    padding-left: 54px;
  }

  .stage-mark {
    left: 9px;
  }

  .guide-route-labels {
    letter-spacing: -0.04em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .guide-route {
    transform: none;
  }
}