:root {
  color-scheme: light dark;
  --page: #f5f8fc;
  --surface: #ffffff;
  --surface-soft: #edf5ff;
  --surface-mint: #effbf7;
  --ink: #10233d;
  --body: #5e6f82;
  --muted: #8a9aad;
  --blue: #2563eb;
  --blue-soft: #eaf2ff;
  --blue-deep: #0b2540;
  --mint: #36cfa0;
  --yellow: #f2b94b;
  --line: rgba(16, 35, 61, 0.09);
  --line-strong: rgba(16, 35, 61, 0.16);
  --shadow: 0 10px 35px rgba(27, 60, 100, 0.08);
  --shadow-hover: 0 16px 40px rgba(27, 60, 100, 0.13);
  --radius-card: 18px;
  --radius-control: 11px;
  --page-width: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--body);
  background: var(--page);
  font-family: Inter, "MiSans", "HarmonyOS Sans SC", "PingFang SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  font: inherit;
}

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

figure,
h1,
h2,
h3,
p,
ul,
ol,
dl,
dd {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

h1,
h2,
h3 {
  color: var(--ink);
  text-wrap: balance;
}

h1,
h2,
h3,
strong,
code,
button,
.brand-name,
.site-nav a {
  font-weight: 700;
}

svg {
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  padding: 9px 13px;
  border-radius: var(--radius-control);
  color: #fff;
  background: var(--blue-deep);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 3px;
}

.container {
  width: min(calc(100% - 48px), var(--page-width));
  margin-inline: auto;
}

.top-sentinel {
  width: 1px;
  height: 1px;
  margin-bottom: -1px;
  pointer-events: none;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  height: 64px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 7px 22px rgba(27, 60, 100, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 185px;
  gap: 10px;
  color: var(--ink);
}

.brand-mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: var(--blue);
  font-size: 15px;
  font-weight: 800;
}

.brand-copy {
  display: grid;
  gap: 0;
  line-height: 1.15;
}

.brand-name {
  font-size: 14px;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: stretch;
  align-self: stretch;
  justify-content: center;
  gap: 24px;
  min-width: 0;
  flex: 1;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--body);
  font-size: 12px;
  white-space: nowrap;
  transition: color 180ms ease;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--blue);
}

.site-nav a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  display: block;
  width: 15px;
  height: 1px;
  margin: 3px auto;
  background: currentColor;
  content: "";
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--page);
}

.hero-decor {
  position: absolute;
  z-index: -1;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-map {
  position: absolute;
  top: 3%;
  right: -3%;
  width: min(52vw, 680px);
  opacity: 0.12;
  mix-blend-mode: multiply;
  transform: rotate(-4deg) scale(1.3);
}

.hero-route {
  position: absolute;
  top: 12%;
  right: 6%;
  width: min(42vw, 560px);
  height: 360px;
  overflow: visible;
}

.hero-route path {
  fill: none;
  stroke: var(--blue);
  stroke-dasharray: 10 12;
  stroke-linecap: round;
  stroke-width: 2;
  opacity: 0.34;
  animation: route-draw 1.8s ease-out both;
}

.hero-route circle {
  fill: var(--mint);
  stroke: #fff;
  stroke-width: 3;
  opacity: 0.85;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  align-items: center;
  gap: clamp(28px, 4.5vw, 64px);
  min-height: 520px;
  padding: 54px 0 48px;
}

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

.eyebrow {
  margin-bottom: 15px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 1.3;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 420px;
  margin-bottom: 15px;
  color: var(--ink);
  font-size: clamp(44px, 5.3vw, 56px);
  font-weight: 720;
  letter-spacing: -0.075em;
  line-height: 1.05;
}

.hero-lead {
  max-width: 500px;
  margin-bottom: 23px;
  color: var(--body);
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  color: var(--ink);
  background: var(--surface);
  font-size: 13px;
  font-weight: 750;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.button:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-soft);
  transform: translateY(-2px);
}

.button-primary {
  border-color: var(--blue);
  color: #fff;
  background: var(--blue);
}

.button-primary:hover {
  border-color: #164fc5;
  color: #fff;
  background: #164fc5;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tech-tags li {
  padding: 4px 8px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 999px;
  color: #35619c;
  background: rgba(237, 245, 255, 0.84);
  font-size: 10px;
  line-height: 1.4;
}

.hero-media {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  justify-self: end;
}

.browser-window {
  overflow: hidden;
  border: 1px solid rgba(16, 35, 61, 0.16);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 18px 45px rgba(27, 60, 100, 0.16);
  transform: translateY(0) rotate(0.35deg);
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.browser-window:hover {
  box-shadow: 0 22px 52px rgba(27, 60, 100, 0.2);
  transform: translateY(-3px) rotate(0deg);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 34px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
}

.browser-dots {
  display: flex;
  gap: 5px;
}

.browser-dots i {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.browser-dots i:nth-child(1) { background: #f27672; }
.browser-dots i:nth-child(2) { background: #f2bd55; }
.browser-dots i:nth-child(3) { background: var(--mint); }

.browser-address {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  font-size: 10px;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.browser-screen {
  overflow: hidden;
  aspect-ratio: 1672 / 941;
  background: #fff;
}

.browser-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.media-caption {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
}

.media-caption strong {
  color: var(--ink);
}

.overview {
  position: relative;
  z-index: 2;
  margin-top: -1px;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.overview-card {
  min-height: 151px;
  padding: 21px 20px 19px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.overview-card:hover {
  border-color: rgba(37, 99, 235, 0.24);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.overview-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}

.overview-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.overview-icon {
  position: relative;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 9px;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 12px;
  font-weight: 800;
}

.overview-icon::after {
  position: absolute;
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
  border-radius: 3px;
  content: "";
}

.overview-card:nth-child(2) .overview-icon,
.overview-card:nth-child(4) .overview-icon {
  color: #1f9d78;
  border-color: rgba(54, 207, 160, 0.28);
  background: var(--surface-mint);
}

.overview-card h3 {
  margin-bottom: 5px;
  font-size: 17px;
  line-height: 1.3;
}

.overview-card p {
  color: var(--body);
  font-size: 12px;
  line-height: 1.55;
}

.overview-card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 11px;
}

.section {
  padding: 94px 0 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin-bottom: 12px;
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.15;
}

.section-heading p {
  max-width: 680px;
  color: var(--body);
  font-size: 15px;
  line-height: 1.7;
}

.section-label {
  display: inline-flex;
  align-items: center;
  min-height: 25px;
  margin-bottom: 11px;
  padding: 4px 9px;
  border-radius: 999px;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 11px;
  font-weight: 800;
}

.process-band {
  padding: 26px 30px 27px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.process-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.process-step {
  position: relative;
  min-width: 0;
  padding-right: 28px;
}

.process-step:not(:last-child)::after {
  position: absolute;
  top: 14px;
  right: 9px;
  width: 18px;
  height: 1px;
  background: rgba(37, 99, 235, 0.32);
  content: "";
}

.process-step:not(:last-child)::before {
  position: absolute;
  top: 10px;
  right: 2px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--blue);
  border-right: 1px solid var(--blue);
  content: "";
  transform: rotate(45deg);
}

.process-step strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 15px;
}

.process-step span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.features {
  padding-top: 104px;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.feature-card:hover {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.feature-route {
  display: flex;
  flex-direction: column;
  grid-column: span 7;
  grid-row: span 2;
}
.feature-attractions { grid-column: span 5; }
.feature-transport { grid-column: span 5; }
.feature-timeline { grid-column: span 7; }
.feature-budget { grid-column: span 5; }

.feature-card-head {
  padding: 24px 24px 17px;
}

.feature-card-head h3 {
  margin-bottom: 7px;
  font-size: 21px;
  letter-spacing: -0.035em;
  line-height: 1.3;
}

.feature-card-head p {
  color: var(--body);
  font-size: 13px;
  line-height: 1.6;
}

.feature-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 11px;
  color: var(--muted);
  font-size: 10px;
}

.feature-meta strong {
  color: var(--blue);
  font-size: 11px;
}

.feature-route .feature-card-body {
  display: grid;
  grid-template-columns: minmax(170px, 0.72fr) minmax(0, 1.28fr);
  gap: 17px;
  flex: 1;
  min-height: 0;
  padding: 0 24px 24px;
}

.route-column {
  display: flex;
  min-height: 0;
  flex-direction: column;
}

.route-list {
  display: grid;
  align-content: start;
  gap: 8px;
}

.route-city {
  display: grid;
  grid-template-columns: 19px minmax(0, 1fr) auto;
  align-items: center;
  gap: 7px;
  min-width: 0;
  padding: 10px 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
}

.route-city::before {
  width: 8px;
  height: 8px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  content: "";
}

.route-city strong {
  min-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.route-city span {
  color: var(--muted);
  font-size: 10px;
  white-space: nowrap;
}

.route-total {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 9px;
}

.route-total div {
  padding: 9px;
  border-radius: 10px;
  background: var(--surface-mint);
}

.route-total strong {
  display: block;
  color: var(--ink);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}

.route-total span {
  color: var(--muted);
  font-size: 10px;
}

.feature-image {
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.feature-route .feature-image {
  height: 100%;
}

.route-mini-map {
  flex: 1;
  min-height: 0;
  margin-top: 12px;
}

.feature-image img {
  width: 100%;
  height: 100%;
  min-height: 150px;
  object-fit: cover;
  object-position: center center;
}

.feature-image figcaption {
  padding: 9px 11px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface);
  font-size: 10px;
  line-height: 1.45;
}

.feature-attractions .feature-image,
.feature-transport .feature-image {
  margin: 0 20px;
}

.feature-attractions .feature-image img,
.feature-transport .feature-image img {
  height: 168px;
}

.feature-attractions .feature-card-head,
.feature-transport .feature-card-head {
  padding-bottom: 15px;
}

.feature-attractions .feature-card-head,
.feature-transport .feature-card-head {
  padding-top: 21px;
}

.feature-attractions .feature-image figcaption,
.feature-transport .feature-image figcaption {
  min-height: 42px;
}

.transport-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  padding: 12px 20px 20px;
}

.transport-option {
  min-width: 0;
  padding: 9px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
}

.transport-option strong,
.transport-option span {
  display: block;
}

.transport-option strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.transport-option span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.transport-option.is-selected {
  border-color: rgba(37, 99, 235, 0.42);
  background: var(--blue-soft);
}

.transport-option.is-selected span {
  color: var(--blue);
}

.feature-timeline,
.feature-budget {
  padding-bottom: 22px;
}

.timeline-wrap {
  overflow-x: auto;
  padding: 4px 24px 0;
}

.timeline-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(125px, 1fr));
  min-width: 650px;
}

.timeline-item {
  position: relative;
  min-height: 100px;
  padding: 22px 12px 0 0;
  border-top: 2px solid rgba(37, 99, 235, 0.22);
}

.timeline-item::before {
  position: absolute;
  top: -7px;
  left: 0;
  width: 10px;
  height: 10px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  background: var(--surface);
  content: "";
}

.timeline-item time {
  display: block;
  margin-bottom: 4px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.timeline-item strong {
  display: block;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.35;
}

.timeline-item span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.45;
}

.timeline-note {
  margin: 3px 24px 0;
  padding-top: 11px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.budget-layout {
  display: grid;
  grid-template-columns: 142px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 1px 24px 17px;
}

.budget-donut {
  display: grid;
  width: 124px;
  height: 124px;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--blue) 0 42%, var(--mint) 42% 68%, var(--yellow) 68% 84%, #b9c9dc 84% 100%);
}

.budget-donut::after {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: var(--surface);
  content: "";
}

.budget-donut-label {
  position: absolute;
  display: grid;
  place-items: center;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.budget-donut-label small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 500;
}

.budget-list {
  display: grid;
  gap: 8px;
}

.budget-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--body);
  font-size: 11px;
}

.budget-row span:first-child {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 7px;
}

.budget-row span:first-child::before {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.budget-row:nth-child(2) span:first-child::before { background: var(--mint); }
.budget-row:nth-child(3) span:first-child::before { background: var(--yellow); }
.budget-row:nth-child(4) span:first-child::before { background: #b9c9dc; }

.budget-row strong {
  color: var(--ink);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.budget-caption {
  margin: 0 24px;
  padding: 9px 11px;
  border-radius: 9px;
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 10px;
  line-height: 1.45;
}

.architecture {
  padding-top: 110px;
}

.architecture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 16px;
}

.architecture-card,
.engineering-card {
  min-width: 0;
  padding: 27px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.architecture-card h3,
.engineering-card h3 {
  margin-bottom: 7px;
  font-size: 21px;
}

.architecture-card > p,
.engineering-card > p {
  color: var(--body);
  font-size: 13px;
}

.arch-flow {
  display: grid;
  justify-items: center;
  gap: 8px;
  margin-top: 23px;
}

.arch-node {
  display: grid;
  width: min(100%, 360px);
  gap: 1px;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: var(--surface-soft);
  text-align: center;
}

.arch-node strong {
  color: var(--ink);
  font-size: 13px;
}

.arch-node span {
  color: var(--muted);
  font-size: 10px;
}

.arch-node.is-primary {
  border-color: rgba(37, 99, 235, 0.32);
  color: var(--blue);
  background: #eaf2ff;
}

.arch-connector {
  color: var(--blue);
  font-size: 17px;
  line-height: 1;
}

.arch-branches {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
  gap: 7px;
  margin-top: 1px;
}

.arch-branch {
  min-width: 0;
  padding: 9px 6px;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink);
  background: var(--surface);
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
}

.arch-note {
  margin-top: 17px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.engineering-list {
  display: grid;
  gap: 12px;
  margin-top: 21px;
}

.engineering-list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 8px;
  color: var(--body);
  font-size: 12px;
  line-height: 1.5;
}

.check {
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 50%;
  color: #087d5b;
  background: rgba(54, 207, 160, 0.19);
  font-size: 11px;
  font-weight: 800;
}

.code-block {
  overflow: auto;
  margin-top: 22px;
  padding: 15px 16px;
  border-radius: 11px;
  color: #d5e7f2;
  background: var(--blue-deep);
  font: 11px/1.65 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.code-key { color: #79d8b9; }
.code-type { color: #8eb6ff; }

.privacy {
  padding-bottom: 80px;
}

.privacy-card {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 40px;
  overflow: hidden;
  padding: 34px 38px;
  border-radius: 20px;
  color: #d7e6ee;
  background: var(--blue-deep);
  box-shadow: 0 18px 42px rgba(11, 37, 64, 0.18);
}

.privacy-copy {
  position: relative;
  z-index: 1;
}

.privacy-card .section-label {
  color: #b0f4dc;
  background: rgba(54, 207, 160, 0.13);
}

.privacy-card h2 {
  max-width: 500px;
  margin-bottom: 11px;
  color: #fff;
  font-size: clamp(30px, 4vw, 40px);
  letter-spacing: -0.055em;
  line-height: 1.18;
}

.privacy-card p {
  max-width: 570px;
  color: #a9c1d0;
  font-size: 14px;
  line-height: 1.7;
}

.privacy-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin-top: 23px;
}

.privacy-list li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: start;
  gap: 7px;
  color: #d7e6ee;
  font-size: 12px;
  line-height: 1.5;
}

.privacy-list .check {
  color: #b0f4dc;
  background: rgba(54, 207, 160, 0.18);
}

.privacy-visual {
  position: relative;
  display: grid;
  align-content: end;
  min-height: 250px;
}

.privacy-mountain {
  position: absolute;
  right: -25px;
  bottom: -30px;
  width: 100%;
  height: 245px;
  opacity: 0.23;
}

.privacy-mountain path {
  fill: none;
  stroke: #8cb2c9;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.privacy-mountain circle {
  fill: var(--mint);
}

.privacy-flow {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 14px;
  border: 1px solid rgba(215, 230, 238, 0.18);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.07);
}

.privacy-flow div {
  min-width: 0;
}

.privacy-flow strong,
.privacy-flow span {
  display: block;
}

.privacy-flow strong {
  color: #fff;
  font-size: 11px;
}

.privacy-flow span {
  margin-top: 3px;
  color: #a9c1d0;
  font-size: 10px;
  line-height: 1.4;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface);
  font-size: 11px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
}

.reveal {
  opacity: 1;
  transform: none;
}

.has-js .reveal {
  opacity: 0;
  transform: translateY(12px);
}

.has-js .reveal.is-visible {
  animation: reveal-in 520ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes reveal-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes route-draw {
  from { stroke-dashoffset: 220; }
  to { stroke-dashoffset: 0; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0e1d2e;
    --surface: #142a3e;
    --surface-soft: #183854;
    --surface-mint: #173b3c;
    --ink: #f1f6fb;
    --body: #c1d0dc;
    --muted: #92a9ba;
    --blue-soft: #193b62;
    --line: rgba(237, 245, 255, 0.12);
    --line-strong: rgba(237, 245, 255, 0.2);
    --shadow: 0 10px 35px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.3);
  }

  .site-header,
  .site-header.is-scrolled,
  .browser-bar {
    background: rgba(14, 29, 46, 0.88);
  }

  .tech-tags li,
  .section-label {
    color: #9fc2ff;
  }

  .browser-screen,
  .browser-window,
  .browser-address {
    background: var(--surface);
  }

  .hero-map {
    mix-blend-mode: screen;
    opacity: 0.08;
  }

  .arch-node.is-primary,
  .tech-tags li {
    background: #193b62;
  }

  .budget-donut::after {
    background: var(--surface);
  }
}

@media (max-width: 1060px) {
  .site-nav {
    gap: 15px;
  }

  .brand {
    min-width: 170px;
  }

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

  .feature-route,
  .feature-attractions,
  .feature-transport,
  .feature-timeline,
  .feature-budget {
    grid-column: span 6;
  }

  .feature-route,
  .feature-timeline {
    grid-column: span 12;
  }
}

@media (max-width: 860px) {
  .container {
    width: min(calc(100% - 36px), var(--page-width));
  }

  .header-inner {
    gap: 12px;
  }

  .site-nav {
    position: absolute;
    top: 63px;
    right: 18px;
    left: 18px;
    display: none;
    align-items: stretch;
    height: auto;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
    box-shadow: var(--shadow-hover);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    min-height: 42px;
    padding: 0 12px;
  }

  .site-nav a::after {
    right: 8px;
    left: 8px;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 26px;
    min-height: 470px;
    padding-top: 45px;
  }

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

  .feature-route .feature-card-body {
    grid-template-columns: minmax(155px, 0.65fr) minmax(0, 1.35fr);
  }

  .architecture-grid,
  .privacy-card {
    grid-template-columns: 1fr;
  }

  .privacy-visual {
    min-height: 190px;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 76px;
  }

  .container {
    width: min(calc(100% - 28px), var(--page-width));
  }

  .site-header,
  .header-inner {
    height: 58px;
  }

  .site-nav {
    top: 57px;
    right: 14px;
    left: 14px;
  }

  .brand {
    min-width: 0;
  }

  .brand-subtitle {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 30px;
    padding: 46px 0 36px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(34px, 10vw, 38px);
  }

  .hero-lead {
    max-width: none;
  }

  .hero-media {
    max-width: none;
  }

  .hero-map {
    top: 30%;
    right: -20%;
    width: 90vw;
  }

  .hero-route {
    top: 30%;
    right: 1%;
    width: 90vw;
    height: 220px;
  }

  .media-caption {
    display: block;
  }

  .media-caption span {
    display: block;
    margin-top: 3px;
  }

  .overview-grid {
    grid-template-columns: 1fr 1fr;
    gap: 9px;
  }

  .overview-card {
    min-height: 145px;
    padding: 16px 13px;
  }

  .overview-card h3 {
    font-size: 15px;
  }

  .section {
    padding-top: 75px;
  }

  .features,
  .architecture {
    padding-top: 84px;
  }

  .section-heading h2 {
    font-size: clamp(28px, 8vw, 34px);
  }

  .process-band {
    padding: 20px 17px;
  }

  .process-track {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-step {
    padding: 0 0 0 27px;
  }

  .process-step:not(:last-child)::after {
    top: 26px;
    right: auto;
    bottom: -15px;
    left: 7px;
    width: 1px;
    height: 16px;
  }

  .process-step:not(:last-child)::before {
    top: auto;
    right: auto;
    bottom: -16px;
    left: 4px;
    transform: rotate(135deg);
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }

  .feature-route,
  .feature-attractions,
  .feature-transport,
  .feature-timeline,
  .feature-budget {
    grid-column: auto;
    grid-row: auto;
  }

  .feature-card-head {
    padding: 21px 18px 15px;
  }

  .feature-route .feature-card-body {
    grid-template-columns: 1fr;
    padding: 0 18px 18px;
  }

  .feature-attractions .feature-image,
  .feature-transport .feature-image {
    margin-inline: 15px;
  }

  .feature-attractions .feature-image img,
  .feature-transport .feature-image img {
    height: 190px;
  }

  .transport-options {
    padding-inline: 15px;
  }

  .timeline-wrap {
    overflow: visible;
    padding-inline: 18px;
  }

  .timeline-list {
    display: grid;
    grid-template-columns: 1fr;
    min-width: 0;
    gap: 0;
    padding-left: 15px;
    border-left: 2px solid rgba(37, 99, 235, 0.22);
  }

  .timeline-item {
    min-height: 0;
    padding: 0 0 17px 18px;
    border-top: 0;
  }

  .timeline-item::before {
    top: 0;
    left: -22px;
  }

  .timeline-note {
    margin-inline: 18px;
  }

  .budget-layout {
    grid-template-columns: 1fr;
    justify-items: center;
    padding-inline: 18px;
  }

  .budget-list {
    width: 100%;
  }

  .budget-caption {
    margin-inline: 18px;
  }

  .architecture-card,
  .engineering-card {
    padding: 22px 18px;
  }

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

  .privacy-card {
    gap: 25px;
    padding: 26px 20px;
    border-radius: 16px;
  }

  .privacy-list {
    grid-template-columns: 1fr;
  }

  .privacy-flow {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    min-height: 82px;
    gap: 3px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}