:root {
  --ink: #0b1219;
  --deep: #07111d;
  --muted: #66717d;
  --line: rgba(11, 18, 25, 0.12);
  --ice: #f5f8fa;
  --white: #ffffff;
  --gold: #c9a76a;
  --blue: #7fb9cf;
  --green: #4f7f77;
  --shadow: 0 24px 60px rgba(7, 17, 29, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--ice);
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

.loading {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding: 40px;
  color: var(--white);
  background: var(--deep);
  font-size: 18px;
}

.loading.error {
  color: #ffd6d6;
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 48px;
  color: var(--white);
  transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 30px rgba(7, 17, 29, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 14px;
  color: var(--gold);
}

.site-header.scrolled .brand-mark {
  border-color: rgba(11, 18, 25, 0.18);
}

.brand strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
}

.brand small {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  color: currentColor;
  opacity: 0.68;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.desktop-nav a {
  opacity: 0.82;
}

.desktop-nav a:hover {
  opacity: 1;
}

.nav-cta {
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.44);
  border-radius: 999px;
  font-size: 14px;
}

.site-header.scrolled .nav-cta {
  border-color: rgba(11, 18, 25, 0.18);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: transparent;
  color: currentColor;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 5px auto;
  background: currentColor;
}

.mobile-nav {
  position: fixed;
  inset: 76px 16px auto 16px;
  z-index: 19;
  display: none;
  padding: 18px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.mobile-nav a {
  display: block;
  padding: 14px 6px;
  border-bottom: 1px solid var(--line);
}

.mobile-nav a:last-child {
  border-bottom: 0;
}

.hero {
  position: relative;
  min-height: 100svh;
  color: var(--white);
  overflow: hidden;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background:
    linear-gradient(90deg, rgba(7, 17, 29, 0.1), rgba(7, 17, 29, 0.3)),
    var(--hero-image) center/cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 17, 29, 0.86) 0%, rgba(7, 17, 29, 0.55) 44%, rgba(7, 17, 29, 0.12) 100%),
    linear-gradient(0deg, rgba(7, 17, 29, 0.72) 0%, rgba(7, 17, 29, 0.02) 44%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, calc(100% - 40px));
  padding: 190px 0 210px 56px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  word-break: normal;
  overflow-wrap: break-word;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: clamp(46px, 7vw, 96px);
  line-height: 1.02;
  font-weight: 500;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-copy {
  max-width: 640px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 20px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
}

.button.primary {
  color: var(--deep);
  background: var(--white);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--white);
}

.hero-panel {
  position: absolute;
  z-index: 3;
  right: 48px;
  bottom: 36px;
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  width: min(720px, calc(100% - 96px));
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(7, 17, 29, 0.42);
  backdrop-filter: blur(18px);
}

.hero-panel div {
  min-height: 150px;
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-panel div:last-child {
  border-right: 0;
}

.hero-panel span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
}

.hero-panel strong {
  display: block;
  margin-top: 18px;
  font-size: 18px;
}

.hero-panel p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.7;
}

.section {
  padding: 110px 56px;
}

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

.section-heading.center {
  margin: 0 auto 48px;
  text-align: center;
}

.section-intro {
  max-width: 760px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: clamp(34px, 4vw, 60px);
  line-height: 1.12;
  font-weight: 500;
  text-wrap: balance;
}

.lead {
  max-width: 980px;
  margin: 34px 0 0;
  color: #364351;
  font-size: 22px;
  line-height: 1.9;
}

.signature-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 60px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signature-strip span {
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  color: #253241;
  font-family: Georgia, serif;
  font-size: 18px;
  text-align: center;
}

.signature-strip span:last-child {
  border-right: 0;
}

.routes {
  background: var(--deep);
  color: var(--white);
}

.route-grid {
  display: grid;
  gap: 34px;
}

.route-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.9fr);
  min-height: 560px;
  background: #0d1a28;
}

.route-feature.invert {
  grid-template-columns: minmax(380px, 0.9fr) minmax(0, 1.1fr);
}

.route-feature.invert img {
  grid-column: 2;
}

.route-feature.invert .route-content {
  grid-row: 1;
}

.route-feature img {
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.route-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 56px;
}

.route-content h3,
.program-grid h3,
.destination-grid h3 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

.route-content p {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.9;
}

.route-content ul {
  display: grid;
  gap: 12px;
  margin: 30px 0;
  padding: 0;
  list-style: none;
}

.route-content li {
  position: relative;
  padding-left: 22px;
  color: rgba(255, 255, 255, 0.86);
}

.route-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.route-content a {
  align-self: flex-start;
  color: var(--gold);
  font-weight: 700;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 52px;
  background: var(--line);
}

.program-grid article {
  min-height: 300px;
  padding: 34px;
  background: var(--white);
}

.program-grid span {
  color: var(--gold);
  font-weight: 800;
}

.program-grid h3 {
  margin-top: 70px;
}

.program-grid p {
  color: var(--muted);
  line-height: 1.8;
}

.education {
  display: grid;
  grid-template-columns: minmax(300px, 0.75fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
  background: #eef5f7;
}

.education-media img {
  max-height: 720px;
  object-fit: cover;
  object-position: top;
  box-shadow: var(--shadow);
}

.education-content p {
  color: #364351;
  font-size: 18px;
  line-height: 1.9;
}

.learning-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.learning-list div {
  padding: 24px;
  background: var(--white);
  border-left: 3px solid var(--gold);
}

.learning-list strong,
.learning-list span {
  display: block;
}

.learning-list span {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
}

.itineraries {
  background: var(--white);
}

.itinerary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.itinerary-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  border: 1px solid var(--line);
  background: #fbfcfd;
  box-shadow: 0 18px 42px rgba(7, 17, 29, 0.08);
}

.itinerary-media {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.itinerary-media img {
  height: 100%;
  object-fit: cover;
}

.itinerary-media span {
  position: absolute;
  left: 18px;
  top: 18px;
  padding: 8px 12px;
  color: var(--deep);
  background: rgba(255, 255, 255, 0.86);
  font-size: 13px;
  font-weight: 800;
}

.itinerary-body {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 28px;
}

.itinerary-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.itinerary-meta span,
.include-list small {
  padding: 8px 10px;
  color: #324151;
  background: #edf3f5;
  font-size: 13px;
}

.itinerary-body h3 {
  margin: 0;
  font-size: 28px;
  line-height: 1.25;
}

.itinerary-body p,
.itinerary-body dd,
.itinerary-body li {
  color: var(--muted);
  line-height: 1.78;
}

.itinerary-body p {
  margin: 0;
}

.itinerary-body dl {
  margin: 0;
}

.itinerary-body dt {
  margin-bottom: 6px;
  color: var(--ink);
  font-weight: 800;
}

.itinerary-body dd {
  margin: 0;
}

.itinerary-highlights {
  display: grid;
  gap: 8px;
}

.itinerary-highlights span {
  position: relative;
  padding-left: 18px;
  color: #263645;
}

.itinerary-highlights span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.itinerary-body details {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

.itinerary-body summary {
  cursor: pointer;
  font-weight: 800;
}

.itinerary-body ol {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-left: 20px;
}

.include-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.itinerary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  color: var(--white);
  background: var(--deep);
  font-weight: 800;
}

.destination-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.destination-grid article {
  background: var(--white);
  overflow: hidden;
}

.destination-grid img {
  height: 270px;
  object-fit: cover;
  object-position: center;
}

.destination-grid h3 {
  margin: 24px 24px 0;
}

.destination-grid p {
  margin: 12px 24px 28px;
  color: var(--muted);
  line-height: 1.75;
}

.service {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(7, 17, 29, 0.92), rgba(7, 17, 29, 0.68)),
    var(--service-image) center/cover;
}

.service-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 56px;
  margin-top: 44px;
}

.service-layout p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 20px;
  line-height: 1.9;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.service-list span {
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(380px, 0.8fr);
  gap: 70px;
  background: var(--white);
}

.contact-copy p {
  color: #364351;
  font-size: 18px;
  line-height: 1.9;
}

.contact-note {
  display: grid;
  gap: 8px;
  margin-top: 40px;
  padding: 24px;
  border-left: 3px solid var(--gold);
  background: var(--ice);
}

.contact-note span {
  color: var(--muted);
  line-height: 1.7;
}

.company-contact {
  display: grid;
  gap: 22px;
  margin-top: 34px;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--ice);
}

.company-contact h3 {
  margin: 0;
  font-size: 24px;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-weight: 500;
}

.company-lines {
  display: grid;
  gap: 12px;
}

.company-lines p {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.company-lines strong {
  color: var(--ink);
}

.company-lines span {
  overflow-wrap: break-word;
}

.qr-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.qr-grid div {
  display: grid;
  gap: 10px;
  width: 132px;
}

.qr-grid img {
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--white);
}

.qr-grid span {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.consult-form {
  display: grid;
  gap: 16px;
  padding: 34px;
  background: var(--deep);
  color: var(--white);
  box-shadow: var(--shadow);
}

.consult-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.consult-form input,
.consult-form select,
.consult-form textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0;
  padding: 0 14px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
}

.consult-form textarea {
  min-height: 110px;
  padding-top: 14px;
  resize: vertical;
}

.consult-form option {
  color: var(--ink);
}

.consult-form button {
  min-height: 52px;
  border: 0;
  color: var(--deep);
  background: var(--gold);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr) auto;
  align-items: center;
  gap: 26px;
  padding: 34px 56px;
  color: rgba(255, 255, 255, 0.76);
  background: #050b12;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand > div {
  width: 318px;
  max-width: 100%;
}

.footer-brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.site-footer strong {
  display: block;
  color: var(--white);
  font-size: 20px;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-weight: 500;
  text-align: justify;
  text-align-last: justify;
  white-space: nowrap;
}

.site-footer p {
  margin: 6px 0 0;
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  text-align: justify;
  text-align-last: justify;
  white-space: nowrap;
}

.footer-info {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-info a {
  color: rgba(255, 255, 255, 0.76);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (max-width: 1060px) {
  .desktop-nav,
  .nav-cta {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .mobile-nav.open {
    display: block;
  }

  .hero-content {
    padding-left: 32px;
  }

  .hero-panel {
    left: 32px;
    right: 32px;
    width: auto;
  }

  .route-feature,
  .route-feature.invert,
  .education,
  .contact,
  .service-layout {
    grid-template-columns: 1fr;
  }

  .route-feature.invert img {
    grid-column: auto;
  }

  .route-feature.invert .route-content {
    grid-row: auto;
  }

  .program-grid,
  .destination-grid,
  .itinerary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .site-header {
    height: 68px;
    padding: 0 18px;
  }

  .brand strong {
    font-size: 16px;
  }

  .mobile-nav {
    inset: 74px 12px auto 12px;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    width: auto;
    padding: 128px 20px 34px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.12;
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-panel {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    grid-template-columns: 1fr;
    width: auto;
    margin: 0 20px 24px;
  }

  .hero-panel div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .hero-panel div:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 76px 20px;
  }

  h2 {
    font-size: 30px;
    line-height: 1.18;
  }

  .lead {
    font-size: 18px;
  }

  .signature-strip,
  .program-grid,
  .destination-grid,
  .itinerary-grid,
  .learning-list,
  .service-list {
    grid-template-columns: 1fr;
  }

  .signature-strip span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .signature-strip span:last-child {
    border-bottom: 0;
  }

  .route-feature {
    min-height: auto;
  }

  .route-feature img {
    height: 310px;
  }

  .route-content {
    padding: 34px 24px;
  }

  .route-content h3,
  .program-grid h3,
  .destination-grid h3,
  .itinerary-body h3 {
    font-size: 26px;
  }

  .itinerary-media {
    height: 230px;
  }

  .itinerary-body {
    padding: 24px;
  }

  .program-grid article {
    min-height: auto;
  }

  .program-grid h3 {
    margin-top: 38px;
  }

  .education-media img {
    max-height: 520px;
  }

  .contact {
    gap: 38px;
  }

  .consult-form {
    padding: 24px;
  }

  .site-footer {
    display: grid;
    gap: 18px;
    padding: 28px 20px;
    grid-template-columns: 1fr;
  }

  .footer-brand {
    align-items: flex-start;
  }

  .company-lines p {
    grid-template-columns: 66px minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .footer-brand {
    flex-direction: column;
  }
}