:root {
  --bg: #fff5f7;
  --bg-soft: #fffafb;
  --ink: #2c1b3d;
  --muted: #735f83;
  --accent: #ff4081;
  --accent-dark: #d91f67;
  --violet: #4b2c63;
  --mint: #4db6ac;
  --gold: #d7a84f;
  --line: rgba(44, 27, 61, .16);
  --shadow: 0 18px 44px rgba(44, 27, 61, .14);
  --radius: 8px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(255, 64, 129, .24);
  color: var(--ink);
}

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

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

.icon {
  width: 1.08em;
  height: 1.08em;
  flex: 0 0 auto;
  display: inline-block;
  vertical-align: -0.14em;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

p {
  margin: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  transition: top .2s ease;
}

.skip-link:focus {
  top: 16px;
}

.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 245, 247, .92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  transition: box-shadow .2s ease, background-color .2s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 250, 251, .96);
  box-shadow: 0 14px 28px rgba(44, 27, 61, .1);
}

.nav-shell {
  width: min(100% - 32px, var(--max));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--ink);
  white-space: nowrap;
}

.brand img,
.footer-brand img {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  box-shadow: 0 8px 18px rgba(255, 64, 129, .22);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
}

.site-nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--ink);
  transition: border-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.site-nav a:not(.nav-cta):hover,
.site-nav a:not(.nav-cta):focus-visible,
.site-nav a:not(.nav-cta).is-active {
  border-color: rgba(255, 64, 129, .7);
  background: rgba(255, 64, 129, .04);
  color: var(--accent-dark);
  box-shadow: 0 0 0 3px rgba(255, 64, 129, .08);
}

.site-nav .nav-cta {
  margin-left: 6px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 64, 129, .25);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 64, 129, .32);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  place-items: center;
}

.menu-toggle .icon {
  width: 22px;
  height: 22px;
}

.menu-toggle .menu-icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-icon-open {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-icon-close {
  display: inline-block;
}

.hero {
  position: relative;
  min-height: min(760px, 78svh);
  overflow: hidden;
  display: grid;
  align-items: center;
  isolation: isolate;
  color: #fff;
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(44, 27, 61, .86) 0%, rgba(44, 27, 61, .62) 42%, rgba(44, 27, 61, .18) 100%),
    linear-gradient(0deg, rgba(44, 27, 61, .46) 0%, rgba(44, 27, 61, .04) 56%);
  z-index: -1;
}

.hero-content {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 72px 0 64px;
  animation: heroIn .72s ease both;
}

.eyebrow,
.section-kicker {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffd9e6;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(34px, 5.6vw, 68px);
  font-weight: 900;
}

h2 {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 900;
}

.section-heading h2::after,
.section-copy h2::after,
.friend-links h2::after {
  content: "";
  display: block;
  width: 62px;
  height: 4px;
  margin-top: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--mint));
}

.section-heading h2::after {
  margin-left: 0;
}

.friend-links h2::after {
  margin-left: auto;
  margin-right: auto;
  background: linear-gradient(90deg, var(--accent), var(--gold));
}

h3 {
  font-size: 20px;
  font-weight: 850;
}

.hero-copy {
  max-width: 660px;
  margin-top: 20px;
  color: rgba(255, 255, 255, .9);
  font-size: clamp(17px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 850;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 30px rgba(255, 64, 129, .32);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent-dark);
}

.button-secondary {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .34);
  color: #fff;
}

.hero-facts {
  max-width: 760px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 34px 0 0;
}

.hero-facts div {
  min-height: 82px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .12);
  backdrop-filter: blur(12px);
}

.hero-facts dt {
  color: #ffd9e6;
  font-size: 13px;
  font-weight: 800;
}

.hero-facts dd {
  margin: 4px 0 0;
  font-weight: 800;
}

.section {
  padding: 86px 0;
}

.intro-band,
.features-band,
.faq-band {
  background: var(--bg-soft);
}

.route-band {
  background:
    linear-gradient(180deg, rgba(255, 64, 129, .07), rgba(77, 182, 172, .08));
}

.updates-band {
  background:
    linear-gradient(180deg, rgba(44, 27, 61, .94), rgba(75, 44, 99, .94));
  color: #fff;
}

.container {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.split,
.feature-row,
.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .86fr);
  gap: 42px;
  align-items: center;
}

.split.reverse {
  grid-template-columns: minmax(320px, .9fr) minmax(0, 1fr);
}

.split.reverse .section-copy {
  order: 2;
}

.split.reverse .media-frame {
  order: 1;
}

.section-copy p:not(.section-kicker),
.section-heading p {
  color: var(--muted);
  font-size: 17px;
}

.section-copy p + p {
  margin-top: 16px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading p {
  margin-top: 14px;
}

.updates-band .section-kicker,
.updates-band .section-heading p {
  color: #ffd9e6;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.meta-grid div,
.info-list article,
.feature-cards article,
.updates-grid article,
.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 10px 24px rgba(44, 27, 61, .06);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}

.meta-grid div {
  min-height: 84px;
  padding: 16px;
}

.meta-grid strong,
.meta-grid span {
  display: block;
}

.meta-grid strong {
  color: var(--accent-dark);
  font-size: 14px;
}

.meta-grid span {
  margin-top: 4px;
  font-weight: 800;
}

.media-frame {
  margin: 0;
}

.media-frame img,
.gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(44, 27, 61, .18);
  box-shadow: var(--shadow);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease, filter .28s ease;
}

.media-frame figcaption,
.gallery figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.media-frame.wide img {
  aspect-ratio: 16 / 9;
}

.feature-row {
  grid-template-columns: minmax(330px, .95fr) minmax(0, 1fr);
  align-items: stretch;
}

.info-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.info-list article,
.feature-cards article,
.updates-grid article {
  padding: 20px;
}

.info-list p,
.feature-cards p,
.updates-grid p,
.steps p,
.faq-list p {
  margin-top: 8px;
  color: var(--muted);
}

.guide-layout {
  grid-template-columns: minmax(0, .95fr) minmax(330px, 1fr);
  align-items: start;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.steps li {
  position: relative;
  min-height: 126px;
  padding: 22px 22px 22px 70px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 10px 24px rgba(44, 27, 61, .06);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 20px;
  top: 22px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 900;
}

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

.icon-dot {
  width: 34px;
  height: 34px;
  display: inline-block;
  margin-bottom: 14px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, var(--accent), var(--mint));
  box-shadow: 0 10px 20px rgba(255, 64, 129, .2);
  transition: transform .22s ease, box-shadow .22s ease;
}

.gallery {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.gallery figure {
  margin: 0;
}

.updates-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.updates-grid article {
  min-height: 176px;
  border-color: rgba(255, 255, 255, .16);
  background: rgba(255, 255, 255, .08);
  box-shadow: none;
}

.updates-grid h3 {
  color: #fff;
}

.updates-grid p {
  color: rgba(255, 255, 255, .78);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  overflow: hidden;
}

.faq-list summary {
  min-height: 58px;
  padding: 16px 52px 16px 18px;
  cursor: pointer;
  font-weight: 850;
  list-style: none;
  position: relative;
  transition: color .18s ease, background-color .18s ease;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(255, 64, 129, .12);
  color: var(--accent-dark);
  font-weight: 900;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list details[open] summary {
  color: var(--accent-dark);
  background: rgba(255, 64, 129, .06);
}

.faq-list p {
  padding: 0 18px 18px;
}

.cta-band {
  padding-top: 70px;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: border-color .22s ease, box-shadow .22s ease;
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 64, 129, .1), transparent 34%, rgba(77, 182, 172, .08));
  opacity: .7;
  pointer-events: none;
}

.cta-panel p:not(.section-kicker) {
  margin-top: 10px;
  color: var(--muted);
}

.cta-panel > * {
  position: relative;
}

.friend-links {
  padding: 44px 0 46px;
  background: var(--ink);
  color: #fff;
}

.friend-links-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.friend-links h2 {
  color: var(--accent);
  font-size: clamp(26px, 3vw, 42px);
}

.friend-link-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 26px;
}

.friend-link-list a {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 26px;
  border: 1px solid rgba(255, 245, 247, .32);
  border-radius: var(--radius);
  background: rgba(255, 245, 247, .08);
  color: rgba(255, 255, 255, .88);
  font-weight: 850;
  transition: border-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.friend-link-list a:hover,
.friend-link-list a:focus-visible {
  border-color: rgba(255, 64, 129, .76);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 64, 129, .18);
}

.site-footer {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p {
  color: var(--muted);
  text-align: center;
}

.back-top {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  display: inline-grid;
  place-items: center;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.back-top .icon {
  width: 20px;
  height: 20px;
}

@media (hover: hover) {
  .button:hover,
  .button:focus-visible,
  .back-top:hover,
  .back-top:focus-visible {
    box-shadow: 0 16px 34px rgba(255, 64, 129, .28);
  }

  .meta-grid div:hover,
  .info-list article:hover,
  .feature-cards article:hover,
  .steps li:hover,
  .faq-list details:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 64, 129, .44);
    box-shadow: 0 18px 34px rgba(44, 27, 61, .12);
    background: rgba(255, 255, 255, .94);
  }

  .updates-grid article:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 64, 129, .52);
    background: rgba(255, 255, 255, .12);
    box-shadow: 0 18px 34px rgba(0, 0, 0, .14);
  }

  .feature-cards article:hover .icon-dot {
    transform: rotate(6deg) scale(1.08);
    box-shadow: 0 14px 26px rgba(255, 64, 129, .28);
  }

  .media-frame:hover img,
  .gallery figure:hover img {
    transform: translateY(-3px) scale(1.015);
    border-color: rgba(255, 64, 129, .42);
    box-shadow: 0 22px 48px rgba(44, 27, 61, .2);
    filter: saturate(1.05);
  }

  .faq-list summary:hover {
    color: var(--accent-dark);
  }

  .cta-panel:hover {
    border-color: rgba(255, 64, 129, .42);
    box-shadow: 0 22px 52px rgba(44, 27, 61, .16);
  }
}

@keyframes heroIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1020px) {
  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 82px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 250, 251, .98);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    justify-content: flex-start;
  }

  .site-nav .nav-cta {
    margin-left: 0;
    justify-content: center;
  }

  .menu-toggle {
    display: grid;
  }

  .split,
  .split.reverse,
  .feature-row,
  .guide-layout {
    grid-template-columns: 1fr;
  }

  .split.reverse .section-copy,
  .split.reverse .media-frame {
    order: initial;
  }

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

@media (max-width: 720px) {
  .nav-shell,
  .container,
  .hero-content {
    width: min(100% - 24px, var(--max));
  }

  .hero {
    min-height: 74svh;
  }

  .hero-media {
    object-position: 38% center;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(44, 27, 61, .9), rgba(44, 27, 61, .48));
  }

  .hero-content {
    padding: 56px 0 44px;
  }

  .hero-facts,
  .meta-grid,
  .info-list,
  .feature-cards,
  .gallery,
  .updates-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 62px 0;
  }

  .cta-panel,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .friend-links {
    padding: 38px 0 40px;
  }

  .friend-link-list {
    width: 100%;
    gap: 10px;
  }

  .friend-link-list a {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
  }

  .footer-inner p {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}