:root {
  --ink: #07162f;
  --ink-soft: #30415e;
  --paper: #f8faf7;
  --white: #ffffff;
  --lime: #b8f33d;
  --lime-dark: #80b514;
  --apricot: #ff9b5d;
  --line: #d9e0e8;
  --muted: #eef2f4;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, Helvetica, sans-serif;
  line-height: 1.7;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  border-bottom: 1px solid rgba(7, 22, 47, 0.14);
  background: rgba(248, 250, 247, 0.96);
}

.header-inner,
.hero-inner,
.section-inner,
.footer-inner {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.header-inner {
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
}

.brand span {
  font-size: 19px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--lime-dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

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

.header-action {
  justify-self: end;
}

.download-button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.download-button {
  background: var(--lime);
  box-shadow: 4px 4px 0 var(--ink);
}

.download-button:hover,
.download-button:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.text-link {
  background: transparent;
}

.text-link:hover,
.text-link:focus-visible {
  background: var(--white);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: var(--white);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.home-hero {
  overflow: hidden;
  border-bottom: 1px solid var(--ink);
  background: var(--white);
}

.hero-inner {
  min-height: 560px;
  padding-block: 42px 34px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(430px, 1.12fr);
  align-items: center;
  gap: clamp(36px, 7vw, 94px);
}

.hero-kicker,
.section-index,
.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-kicker::before,
.section-index::before,
.page-kicker::before {
  content: "";
  width: 28px;
  height: 3px;
  background: var(--apricot);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-copy h1 {
  max-width: none;
  margin-bottom: 20px;
  font-size: clamp(42px, 4.4vw, 64px);
  font-weight: 900;
}

.hero-copy h1 span {
  display: block;
  color: var(--lime-dark);
}

.hero-copy > p:not(.hero-kicker) {
  max-width: 580px;
  margin-bottom: 24px;
  color: var(--ink-soft);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 24px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-meta li,
.genre-tags span {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.hero-media {
  position: relative;
  min-height: 472px;
  display: grid;
  place-items: center;
  isolation: isolate;
}

.focus-ring {
  position: absolute;
  width: 418px;
  height: 418px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--lime);
  box-shadow: inset 0 0 0 20px var(--white);
}

.hero-shot {
  position: absolute;
  overflow: hidden;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--white);
}

.hero-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shot.main {
  z-index: 3;
  width: 256px;
  height: 420px;
  border-radius: 7px;
  box-shadow: 13px 13px 0 rgba(7, 22, 47, 0.9);
}

.hero-shot.main img {
  object-fit: contain;
}

.hero-shot.peek-one {
  z-index: 2;
  left: 4px;
  bottom: 52px;
  width: 154px;
  height: 154px;
}

.hero-shot.peek-two {
  z-index: 2;
  right: 2px;
  top: 44px;
  width: 138px;
  height: 138px;
}

.media-label {
  position: absolute;
  z-index: 5;
  right: 18px;
  bottom: 18px;
  min-width: 116px;
  padding: 8px 12px;
  border: 1px solid var(--ink);
  background: var(--apricot);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.genre-rail {
  border-bottom: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
}

.genre-rail .section-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.rail-title {
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.rail-items {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-inline: 1px solid rgba(255, 255, 255, 0.28);
}

.rail-items span {
  padding: 11px 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.28);
  color: #dce4ef;
  text-align: center;
}

.rail-items span:last-child {
  border-right: 0;
}

.section-band {
  padding-block: 78px;
  border-bottom: 1px solid var(--line);
}

.section-band.white {
  background: var(--white);
}

.section-band.navy {
  color: var(--white);
  background: var(--ink);
}

.section-band.apricot {
  background: #fff0e6;
}

.section-head {
  display: grid;
  grid-template-columns: 190px 1fr;
  align-items: end;
  gap: 30px;
  margin-bottom: 34px;
}

.section-head h2,
.content-heading h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
}

.section-note {
  max-width: 650px;
  margin: 0;
  color: var(--ink-soft);
}

.navy .section-note,
.navy .section-index {
  color: #bdc8d9;
}

.feature-ledger {
  border-top: 1px solid var(--ink);
}

.feature-row {
  display: grid;
  grid-template-columns: 84px minmax(170px, 0.55fr) 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--ink);
}

.feature-number {
  color: var(--lime-dark);
  font-size: 14px;
  font-weight: 900;
}

.feature-row h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.feature-row p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.genre-map {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 46px;
  align-items: center;
}

.genre-orbit {
  position: relative;
  min-height: 390px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.genre-orbit::before,
.genre-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(184, 243, 61, 0.48);
  border-radius: 50%;
}

.genre-orbit::before {
  inset: 44px;
}

.genre-orbit::after {
  inset: 106px;
}

.genre-center {
  z-index: 2;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--lime);
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
}

.genre-item {
  position: absolute;
  z-index: 3;
  min-width: 88px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--ink);
  font-weight: 800;
  text-align: center;
}

.genre-item:nth-child(2) { top: 28px; left: 42%; }
.genre-item:nth-child(3) { top: 34%; right: 10px; }
.genre-item:nth-child(4) { bottom: 28px; right: 24%; }
.genre-item:nth-child(5) { bottom: 30%; left: 0; }

.genre-copy h3 {
  margin-bottom: 16px;
  font-size: 29px;
}

.genre-copy p {
  color: #bdc8d9;
}

.genre-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.navy .genre-tags span {
  border-color: #516079;
  background: #132746;
  color: var(--white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
  gap: 22px;
  align-items: end;
}

.gallery-item {
  margin: 0;
}

.gallery-frame {
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 50% 50% 6px 6px;
  background: var(--muted);
}

.gallery-frame img {
  width: 100%;
  max-width: 400px;
  height: auto;
  margin-inline: auto;
}

.gallery-item:first-child .gallery-frame {
  border-radius: 7px 50% 7px 7px;
}

.gallery-item:nth-child(3) .gallery-frame {
  border-radius: 50% 7px 7px 7px;
}

.gallery-item figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  padding-top: 14px;
  color: var(--ink-soft);
  font-size: 14px;
}

.gallery-item figcaption strong {
  color: var(--ink);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.route-item {
  min-height: 240px;
  padding: 30px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.route-item .route-number {
  color: #a9440d;
  font-size: 13px;
  font-weight: 900;
}

.route-item h3 {
  margin: 28px 0 10px;
  font-size: 26px;
}

.route-item p {
  color: #5e4639;
}

.route-item .text-link {
  margin-top: auto;
}

.faq-preview {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 50px;
  align-items: start;
}

.faq-preview h2 {
  font-size: clamp(30px, 4vw, 48px);
}

.faq-list,
.faq-page-list {
  border-top: 1px solid var(--ink);
}

details {
  border-bottom: 1px solid var(--ink);
}

summary {
  position: relative;
  padding: 20px 46px 20px 0;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 16px;
  font-size: 24px;
  line-height: 1;
}

details[open] summary::after {
  content: "−";
}

details p {
  padding: 0 46px 20px 0;
  margin: 0;
  color: var(--ink-soft);
}

.final-cta {
  padding-block: 66px;
  background: var(--lime);
}

.final-cta .section-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
}

.final-cta h2 {
  margin-bottom: 8px;
  font-size: clamp(30px, 4vw, 50px);
}

.final-cta p {
  margin-bottom: 0;
}

.final-cta .download-button {
  background: var(--white);
}

.site-footer {
  padding-block: 38px;
  background: var(--ink);
  color: #c9d3e1;
}

.footer-inner {
  text-align: center;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 18px;
}

.footer-nav a {
  color: var(--white);
  text-decoration: none;
}

.footer-disclaimer {
  max-width: 820px;
  margin: 0 auto 12px;
  font-size: 13px;
}

.copyright {
  margin: 0;
  font-size: 13px;
}

.page-hero {
  padding-block: 64px 54px;
  border-bottom: 1px solid var(--ink);
  background: var(--white);
}

.page-hero .section-inner {
  display: grid;
  grid-template-columns: 1fr 0.52fr;
  gap: 50px;
  align-items: end;
}

.page-hero h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 68px);
}

.page-hero p:not(.page-kicker) {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.page-index {
  display: grid;
  gap: 9px;
  padding-left: 24px;
  border-left: 1px solid var(--ink);
}

.page-index span {
  font-size: 13px;
  font-weight: 800;
}

.content-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 60px;
  align-items: start;
}

.content-nav {
  position: sticky;
  top: 98px;
  display: grid;
  border-top: 1px solid var(--ink);
}

.content-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
}

.content-main section {
  padding-bottom: 58px;
  scroll-margin-top: 98px;
}

.content-main section + section {
  padding-top: 58px;
  border-top: 1px solid var(--line);
}

.content-main h2 {
  margin-bottom: 22px;
  font-size: 32px;
}

.content-main h3 {
  margin: 28px 0 12px;
  font-size: 21px;
}

.content-main p,
.content-main li {
  color: var(--ink-soft);
}

.content-main ol,
.content-main ul {
  padding-left: 1.4em;
}

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

.step-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--ink);
}

.step-number {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--apricot);
  font-weight: 900;
}

.step-item h3 {
  margin-top: 0;
}

.note-box {
  margin: 26px 0;
  padding: 20px 22px;
  border-left: 5px solid var(--lime-dark);
  background: var(--muted);
}

.note-box strong {
  display: block;
  margin-bottom: 6px;
}

.faq-category {
  margin-bottom: 56px;
}

.faq-category h2 {
  margin-bottom: 18px;
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .menu-button {
    display: block;
    justify-self: end;
  }

  .header-action {
    display: none;
  }

  .site-nav {
    position: fixed;
    inset: 72px 0 auto;
    display: none;
    padding: 20px;
    border-bottom: 1px solid var(--ink);
    background: var(--white);
  }

  .site-nav.is-open {
    display: grid;
    gap: 0;
  }

  .site-nav a {
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-copy {
    order: 1;
  }

  .hero-media {
    order: 2;
  }

  .section-head,
  .page-hero .section-inner,
  .content-layout {
    grid-template-columns: 1fr;
  }

  .section-head {
    gap: 12px;
  }

  .genre-map,
  .faq-preview {
    grid-template-columns: 1fr;
  }

  .content-nav {
    position: static;
  }
}

@media (max-width: 620px) {
  .header-inner,
  .hero-inner,
  .section-inner,
  .footer-inner {
    width: min(calc(100% - 28px), var(--max));
  }

  .header-inner {
    height: 62px;
  }

  .site-nav {
    inset-block-start: 62px;
  }

  .home-hero .hero-inner {
    padding-block: 26px 20px;
    gap: 14px;
  }

  .hero-copy h1 {
    max-width: none;
    margin-bottom: 13px;
    font-size: 38px;
  }

  .hero-copy h1 span {
    display: inline;
  }

  .hero-copy > p:not(.hero-kicker) {
    margin-bottom: 16px;
    font-size: 15px;
    line-height: 1.6;
  }

  .hero-kicker {
    margin-bottom: 8px;
  }

  .hero-actions {
    margin-bottom: 14px;
  }

  .hero-actions .download-button,
  .hero-actions .text-link {
    flex: 1 1 0;
    min-width: 126px;
    padding-inline: 12px;
  }

  .hero-meta {
    display: none;
  }

  .hero-media {
    min-height: 254px;
  }

  .focus-ring {
    width: 238px;
    height: 238px;
    box-shadow: inset 0 0 0 10px var(--white);
  }

  .hero-shot.main {
    width: 145px;
    height: 238px;
    box-shadow: 7px 7px 0 rgba(7, 22, 47, 0.9);
  }

  .hero-shot.peek-one {
    left: 4%;
    bottom: 24px;
    width: 82px;
    height: 82px;
  }

  .hero-shot.peek-two {
    right: 3%;
    top: 16px;
    width: 78px;
    height: 78px;
  }

  .media-label {
    right: 1%;
    bottom: 2px;
    min-width: 88px;
    padding: 5px 7px;
    font-size: 11px;
  }

  .genre-rail .section-inner {
    min-height: 58px;
    gap: 12px;
  }

  .rail-items {
    grid-template-columns: repeat(3, 1fr);
  }

  .rail-items span {
    padding: 7px 5px;
    font-size: 12px;
  }

  .rail-items span:nth-child(n + 4) {
    display: none;
  }

  .section-band {
    padding-block: 52px;
  }

  .feature-row {
    grid-template-columns: 52px 1fr;
    gap: 12px;
  }

  .feature-row p {
    grid-column: 2;
  }

  .genre-orbit {
    min-height: 316px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .gallery-frame {
    max-width: 310px;
    margin-inline: auto;
  }

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

  .final-cta .section-inner {
    grid-template-columns: 1fr;
  }

  .final-cta .download-button {
    width: 100%;
  }

  .page-hero {
    padding-block: 42px 36px;
  }

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

  .page-index {
    padding: 18px 0 0;
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .content-layout {
    gap: 38px;
  }

  .content-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .content-nav a {
    padding-right: 10px;
  }

  .step-item {
    grid-template-columns: 52px 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}