* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--series-bg);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--series-bg);
  color: var(--series-text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  line-height: 1.75;
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

.summary-wrap {
  width: min(1120px, calc(100% - 52px));
  margin: 0 auto;
}

.summary-hero {
  min-height: 670px;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--series-border);
}

#route-net {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.72;
  pointer-events: none;
}

.summary-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 22, 0.35);
  pointer-events: none;
}

.summary-hero__content {
  position: relative;
  z-index: 2;
  padding: 82px 0 54px;
}

.summary-kicker {
  margin: 0 0 18px;
  color: var(--series-cyan);
  font-size: 13px;
  font-weight: 800;
}

.summary-hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: 64px;
  line-height: 1.18;
  font-weight: 900;
  text-wrap: balance;
}

.summary-hero h1 span {
  color: var(--series-cyan);
}

.summary-lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: #b7c2d2;
  font-size: 18px;
  line-height: 1.8;
  text-wrap: pretty;
}

.summary-actions {
  margin-top: 32px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.summary-button {
  min-height: 48px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(34, 211, 238, 0.72);
  border-radius: 7px;
  background: var(--series-cyan);
  color: #061017;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.summary-button:hover {
  transform: translateY(-2px);
  background: #67e8f9;
}

.summary-button:focus-visible,
.route-choice:focus-visible,
.stage-link:focus-visible,
.continue-panel a:focus-visible {
  outline: 3px solid var(--series-amber);
  outline-offset: 3px;
}

.summary-button--quiet {
  border-color: var(--series-border);
  background: rgba(255, 255, 255, 0.045);
  color: var(--series-text);
}

.summary-button--quiet:hover {
  background: rgba(255, 255, 255, 0.08);
}

.continue-panel {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--series-muted);
  font-size: 13px;
}

.continue-panel a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--series-text);
  font-weight: 800;
  text-decoration: none;
}

.continue-panel a:hover {
  color: var(--series-cyan);
}

.route-preview {
  position: relative;
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.route-preview::before {
  content: "";
  position: absolute;
  left: 19px;
  right: calc(33.333% - 19px);
  top: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--series-cyan), var(--series-indigo), var(--series-lime));
}

.route-preview__step {
  position: relative;
  min-width: 0;
  padding-right: 26px;
}

.route-preview__step:last-child {
  padding-right: 0;
}

.route-preview__dot {
  position: relative;
  z-index: 1;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--series-cyan);
  border-radius: 50%;
  background: var(--series-bg);
  color: var(--series-cyan);
  font-size: 12px;
  font-weight: 900;
}

.route-preview__step:nth-child(2) .route-preview__dot {
  border-color: var(--series-indigo);
  color: var(--series-indigo);
}

.route-preview__step:nth-child(3) .route-preview__dot {
  border-color: var(--series-lime);
  color: var(--series-lime);
}

.route-preview__step b {
  margin-top: 14px;
  display: block;
  font-size: 16px;
}

.route-preview__step span {
  margin-top: 4px;
  display: block;
  color: var(--series-muted);
  font-size: 12px;
}

.route-preview__skip {
  color: var(--series-amber) !important;
}

.summary-section {
  padding: 104px 0;
  border-bottom: 1px solid var(--series-border);
}

.section-heading {
  max-width: 800px;
  margin-bottom: 44px;
}

.section-heading p:first-child {
  margin: 0 0 10px;
  color: var(--series-cyan);
  font-size: 12px;
  font-weight: 800;
}

.section-heading h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.3;
  text-wrap: balance;
}

.section-heading p:last-child {
  max-width: 680px;
  margin: 16px 0 0;
  color: var(--series-muted);
  font-size: 16px;
  text-wrap: pretty;
}

.route-finder {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 46px;
  align-items: start;
}

.route-choices {
  display: grid;
  gap: 10px;
}

.route-choice {
  width: 100%;
  min-height: 82px;
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--series-border);
  border-radius: 8px;
  background: transparent;
  color: var(--series-text);
  text-align: left;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.route-choice:hover,
.route-choice.is-active {
  border-color: rgba(34, 211, 238, 0.55);
  background: rgba(34, 211, 238, 0.055);
}

.route-choice__number {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--series-border);
  border-radius: 50%;
  color: var(--series-cyan);
  font-size: 12px;
  font-weight: 900;
}

.route-choice b {
  display: block;
  font-size: 16px;
}

.route-choice > span:last-child {
  min-width: 0;
}

.route-choice > span:last-child > span {
  margin-top: 3px;
  display: block;
  color: var(--series-muted);
  font-size: 13px;
}

.recommendation {
  min-height: 286px;
  padding: 30px;
  border: 1px solid rgba(129, 140, 248, 0.42);
  border-radius: 8px;
  background: var(--series-surface);
}

.recommendation__placeholder {
  color: var(--series-muted);
}

.recommendation__eyebrow {
  margin: 0 0 14px;
  color: var(--series-indigo);
  font-size: 12px;
  font-weight: 800;
}

.recommendation h3 {
  margin: 0;
  font-size: 26px;
  line-height: 1.35;
}

.recommendation p {
  margin: 16px 0 24px;
  color: #b7c2d2;
  font-size: 15px;
  text-wrap: pretty;
}

.recommendation .summary-button {
  width: 100%;
}

.roadmap {
  display: grid;
}

.roadmap-stage {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 70px;
  align-items: center;
  padding: 76px 0;
  border-top: 1px solid var(--series-border);
}

.roadmap-stage:nth-child(even) .roadmap-stage__media {
  order: 2;
}

.roadmap-stage__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--series-border);
  border-radius: 8px;
  background: #fff;
}

.roadmap-stage__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.roadmap-stage__media--practice img {
  object-position: 50% 12%;
}

.roadmap-stage__index {
  margin: 0 0 10px;
  color: var(--series-cyan);
  font-size: 12px;
  font-weight: 900;
}

.roadmap-stage:nth-child(2) .roadmap-stage__index {
  color: var(--series-indigo);
}

.roadmap-stage:nth-child(3) .roadmap-stage__index {
  color: var(--series-lime);
}

.roadmap-stage h3 {
  margin: 0;
  font-size: 34px;
  line-height: 1.3;
}

.roadmap-stage__question {
  margin: 12px 0 0;
  color: #c4cedc;
  font-size: 17px;
}

.roadmap-stage__copy {
  margin: 18px 0 0;
  color: var(--series-muted);
  font-size: 15px;
  text-wrap: pretty;
}

.roadmap-stage__facts {
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--series-border);
}

.roadmap-stage__facts li {
  min-height: 46px;
  display: grid;
  grid-template-columns: 86px 1fr;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--series-border);
  font-size: 14px;
}

.roadmap-stage__facts span {
  color: var(--series-muted);
  font-size: 12px;
}

.stage-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--series-cyan);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.stage-link:hover {
  color: #67e8f9;
}

.summary-closing {
  padding: 82px 0;
  text-align: center;
}

.summary-closing h2 {
  max-width: 760px;
  margin: 0 auto;
  font-size: 34px;
  line-height: 1.4;
  text-wrap: balance;
}

.summary-closing p {
  max-width: 620px;
  margin: 18px auto 28px;
  color: var(--series-muted);
}

.summary-footer {
  padding: 28px 0 44px;
  border-top: 1px solid var(--series-border);
  color: var(--series-muted);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 860px) {
  .summary-hero h1 {
    font-size: 52px;
  }

  .route-finder,
  .roadmap-stage {
    grid-template-columns: 1fr;
  }

  .roadmap-stage {
    gap: 36px;
  }

  .roadmap-stage:nth-child(even) .roadmap-stage__media {
    order: 0;
  }
}

@media (max-width: 600px) {
  .summary-wrap {
    width: min(100% - 36px, 560px);
  }

  .summary-hero {
    min-height: 680px;
  }

  .summary-hero__content {
    padding: 58px 0 38px;
  }

  .summary-hero h1 {
    font-size: 40px;
  }

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

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

  .summary-button {
    width: 100%;
  }

  .continue-panel {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
  }

  .route-preview {
    margin-top: 48px;
  }

  .route-preview__step {
    padding-right: 10px;
  }

  .route-preview__step b {
    font-size: 13px;
  }

  .route-preview__step span {
    font-size: 11px;
    line-height: 1.5;
  }

  .summary-section {
    padding: 76px 0;
  }

  .section-heading {
    margin-bottom: 32px;
  }

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

  .route-finder {
    gap: 24px;
  }

  .route-choice {
    grid-template-columns: 44px 1fr;
    padding: 12px;
  }

  .recommendation {
    min-height: 0;
    padding: 24px 20px;
  }

  .roadmap-stage {
    padding: 58px 0;
  }

  .roadmap-stage h3 {
    font-size: 28px;
  }

  .roadmap-stage__facts li {
    grid-template-columns: 72px 1fr;
  }

  .summary-closing h2 {
    font-size: 28px;
  }
}

@media (max-width: 360px) {
  .summary-hero {
    min-height: 0;
  }

  .summary-hero__content {
    padding: 24px 0 20px;
  }

  .summary-kicker {
    margin-bottom: 8px;
    font-size: 12px;
  }

  .summary-hero h1 {
    font-size: 34px;
  }

  .summary-lead {
    margin-top: 10px;
    font-size: 14px;
    line-height: 1.7;
  }

  .summary-actions {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .summary-button {
    min-height: 46px;
    padding: 0 8px;
    gap: 5px;
    font-size: 12px;
  }

  .continue-panel {
    display: none;
  }

  .route-preview {
    margin-top: 18px;
  }

  .route-preview__dot {
    width: 34px;
    height: 34px;
  }

  .route-preview::before {
    left: 17px;
    right: calc(33.333% - 17px);
    top: 16px;
  }

  .route-preview__step b {
    margin-top: 8px;
    font-size: 12px;
  }

  .route-preview__step span {
    margin-top: 2px;
    font-size: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .summary-button,
  .route-choice {
    transition: none;
  }
}