:root {
  --ink: #10234a;
  --muted: #607086;
  --soft: #eef5ff;
  --paper: #ffffff;
  --line: #dbe5f2;
  --blue: #073d8f;
  --navy: #061c46;
  --sky: #e6f2ff;
  --gold: #c9912f;
  --green: #167255;
  --shadow: 0 24px 70px rgba(7, 32, 74, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f7fbff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  line-height: 1.6;
}

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

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

.top-strip {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 9px 20px;
  color: #fff;
  background: var(--navy);
  font-size: 13px;
}

.top-strip span {
  color: rgba(255, 255, 255, 0.72);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 15px clamp(20px, 5vw, 76px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(219, 229, 242, 0.9);
  backdrop-filter: blur(18px);
}

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

.brand-mark {
  display: inline-flex;
  width: 58px;
  height: 46px;
  align-items: center;
  justify-content: center;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #243d64;
  font-size: 15px;
  font-weight: 800;
}

.site-nav a:not(.nav-cta) {
  padding: 8px 0;
}

.site-nav a:hover {
  color: var(--blue);
}

.nav-cta {
  padding: 10px 16px;
  color: #fff;
  background: var(--blue);
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.9fr);
  gap: clamp(34px, 5vw, 84px);
  align-items: center;
  min-height: calc(100vh - 100px);
  padding: clamp(54px, 7vw, 104px) clamp(20px, 5vw, 76px);
  background:
    radial-gradient(circle at 80% 8%, rgba(201, 145, 47, 0.24), transparent 34%),
    radial-gradient(circle at 12% 18%, rgba(54, 141, 255, 0.16), transparent 28%),
    linear-gradient(135deg, #ffffff 0%, #edf6ff 62%, #fff8ea 100%);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(43px, 6.5vw, 82px);
  line-height: 1.03;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.14;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
}

.hero-copy,
.section-heading p,
.study-copy p,
.aeas-copy p,
.pte-copy p,
.camp-content p,
.resource-section p,
.contact-copy p {
  color: var(--muted);
  font-size: 17px;
}

.hero-copy {
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
}

.button.primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 16px 30px rgba(7, 61, 143, 0.26);
}

.button.primary:hover {
  background: #062f70;
}

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

.button.dark {
  color: #fff;
  background: var(--navy);
  border-color: rgba(255, 255, 255, 0.15);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  max-width: 760px;
  margin-top: 18px;
}

.trust-row span,
.trust-row strong {
  padding: 9px 12px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
}

.trust-row span {
  color: var(--muted);
}

.hero-collage {
  position: relative;
  min-height: 610px;
}

.hero-img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 8px solid #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.hero-img-main {
  left: 6%;
  top: 8%;
  width: 72%;
  height: 58%;
}

.hero-img-small.top {
  right: 0;
  top: 0;
  width: 40%;
  height: 31%;
}

.hero-img-small.bottom {
  right: 7%;
  bottom: 0;
  width: 43%;
  height: 46%;
  object-position: top center;
}

.float-card {
  position: absolute;
  left: 0;
  bottom: 12%;
  width: 260px;
  padding: 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.float-card span,
.float-card small {
  display: block;
  color: rgba(255, 255, 255, 0.76);
}

.float-card strong {
  display: block;
  margin: 4px 0;
  font-size: 22px;
  line-height: 1.2;
}

.section,
.contact-section {
  padding: clamp(62px, 8vw, 112px) clamp(20px, 5vw, 76px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 36px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.service-section {
  background: #fff;
}

.service-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 18px;
}

.service-card {
  min-height: 300px;
  padding: 26px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 14px 34px rgba(8, 28, 64, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

a.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(7, 61, 143, 0.28);
  box-shadow: 0 22px 52px rgba(8, 28, 64, 0.14);
}

a.service-card:focus-visible {
  outline: 3px solid rgba(201, 145, 47, 0.45);
  outline-offset: 4px;
}

.service-card:not(.image-card) {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card p,
.program-card p,
.faq-grid p,
.study-steps p {
  color: var(--muted);
}

.service-number {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  color: var(--blue);
  background: var(--sky);
  border-radius: 50%;
  font-weight: 900;
}

.image-card {
  display: grid;
  grid-template-rows: 260px auto;
  gap: 20px;
  padding: 0;
  overflow: hidden;
  color: #fff;
  background: var(--navy);
}

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

.image-card div {
  padding: 0 24px 24px;
}

.image-card p {
  color: rgba(255, 255, 255, 0.75);
}

.tag {
  display: inline-flex;
  margin-bottom: 10px;
  color: #ffd991;
  font-weight: 900;
  font-size: 13px;
  text-transform: uppercase;
}

.australia-band {
  position: relative;
  min-height: 620px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--navy);
}

.australia-band > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.76;
}

.australia-band::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(6, 28, 70, 0.86), rgba(6, 28, 70, 0.18) 58%, rgba(6, 28, 70, 0.68));
}

.australia-panel {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: clamp(28px, 6vw, 78px);
  padding: clamp(24px, 4vw, 40px);
  background: rgba(6, 28, 70, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  backdrop-filter: blur(10px);
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.reason-grid div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}

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

.reason-grid span {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.study-section,
.aeas-section,
.pte-section,
.resource-section,
.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
}

.study-section {
  background: linear-gradient(180deg, #fff 0%, #f3f8ff 100%);
}

.study-copy {
  max-width: 620px;
}

.study-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.study-steps article {
  min-height: 190px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 14px 34px rgba(8, 28, 64, 0.06);
}

.study-steps span,
.program-card span {
  display: block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.aeas-section {
  background: #fff;
}

.class-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.class-mode-grid article {
  padding: 20px;
  background: linear-gradient(135deg, #f5f9ff 0%, #fff 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.class-mode-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.class-mode-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.class-mode-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.pte-section {
  background: linear-gradient(135deg, #f4f9ff 0%, #ffffff 100%);
}

.pte-media img {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.pte-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.pte-points span {
  padding: 10px 13px;
  color: var(--blue);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 900;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  font-weight: 800;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 2px;
  width: 21px;
  height: 21px;
  content: "✓";
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--green);
  border-radius: 50%;
  font-size: 12px;
}

.aeas-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.aeas-gallery img,
.resource-gallery img {
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.resource-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.resource-gallery figure {
  margin: 0;
}

.resource-gallery figcaption {
  margin-top: 10px;
  text-align: center;
  font-size: 14px;
  font-weight: 900;
  color: var(--muted);
}

.aeas-gallery img:nth-child(2) {
  margin-top: 48px;
}

.camp-section {
  padding: clamp(62px, 8vw, 112px) clamp(20px, 5vw, 76px);
  color: #fff;
  background:
    linear-gradient(120deg, rgba(6, 28, 70, 0.94), rgba(7, 61, 143, 0.76)),
    url("assets/camp-poster.png") center 24% / cover;
}

.camp-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(340px, 0.48fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
}

.camp-content p {
  color: rgba(255, 255, 255, 0.78);
}

.camp-poster {
  position: relative;
  display: block;
  overflow: hidden;
  background: #fff;
  border: 8px solid rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.camp-poster img {
  width: 100%;
  max-height: 780px;
  object-fit: cover;
  object-position: top center;
}

.camp-poster span {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 10px 14px;
  color: #fff;
  background: rgba(6, 28, 70, 0.86);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  text-align: center;
}

.camp-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.camp-points span {
  padding: 9px 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-weight: 800;
}

.camp-detail-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(34px, 5vw, 62px);
}

.camp-detail-grid article {
  padding: 22px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}

.camp-detail-grid strong,
.camp-detail-grid p {
  display: block;
}

.camp-detail-grid strong {
  margin-bottom: 8px;
  color: #ffd991;
  font-size: 19px;
}

.camp-detail-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

.camp-itinerary {
  margin-top: clamp(44px, 7vw, 84px);
}

.camp-itinerary .section-heading {
  color: #fff;
}

.camp-itinerary .section-heading p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.76);
}

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

.timeline div,
.timeline article {
  min-height: 176px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}

.timeline strong,
.timeline span {
  display: block;
}

.timeline strong {
  margin-bottom: 10px;
  color: #ffd991;
  font-size: 22px;
}

.timeline span {
  color: rgba(255, 255, 255, 0.84);
}

.itinerary-cards strong {
  font-size: 18px;
}

.itinerary-cards span {
  font-size: 14px;
  line-height: 1.7;
}

.camp-extra-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: clamp(34px, 5vw, 62px);
}

.camp-extra-grid article {
  padding: 26px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}

.camp-extra-grid h3 {
  color: #ffd991;
}

.camp-extra-grid ul {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.82);
}

.programs-section {
  background: #fff;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.program-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(8, 28, 64, 0.06);
}

.program-card.highlight {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--navy));
  border-color: transparent;
}

.program-card.highlight p {
  color: rgba(255, 255, 255, 0.78);
}

.price {
  margin-bottom: 14px;
  color: var(--gold);
  font-size: 36px;
  font-weight: 900;
  line-height: 1;
}

.resource-section {
  background: linear-gradient(135deg, #f5f9ff 0%, #fff 100%);
}

.resource-gallery img {
  max-height: 760px;
  object-fit: cover;
  object-position: top center;
}

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

.faq-grid details {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 14px 34px rgba(8, 28, 64, 0.06);
}

.faq-grid summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}

.faq-grid p {
  margin: 14px 0 0;
}

.contact-section {
  color: #fff;
  background:
    linear-gradient(120deg, rgba(6, 28, 70, 0.96), rgba(7, 61, 143, 0.86)),
    url("https://images.unsplash.com/photo-1488190211105-8b0e65b80b4e?auto=format&fit=crop&q=80&w=1400") center / cover;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.wechat-card {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 480px;
  margin-top: 26px;
  padding: 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 18px;
  box-shadow: 0 22px 56px rgba(0, 0, 0, 0.18);
}

.wechat-card img {
  width: 138px;
  aspect-ratio: 1;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
}

.wechat-card strong,
.wechat-card span {
  display: block;
}

.wechat-card strong {
  color: var(--navy);
  font-size: 19px;
}

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

.contact-form {
  display: grid;
  gap: 14px;
  padding: 28px;
  color: var(--ink);
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(7, 61, 143, 0.12);
}

.contact-form .button {
  width: 100%;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(20px, 5vw, 76px);
  color: rgba(255, 255, 255, 0.82);
  background: #041536;
}

.site-footer p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.62);
}

.site-footer a {
  font-weight: 900;
}

@media (max-width: 1060px) {
  .hero,
  .study-section,
  .aeas-section,
  .pte-section,
  .camp-hero,
  .resource-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .hero-collage {
    min-height: 520px;
  }

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

  .camp-detail-grid,
  .camp-extra-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .image-card:first-child {
    grid-column: span 2;
  }
}

@media (max-width: 760px) {
  .top-strip {
    display: none;
  }

  .site-header {
    align-items: flex-start;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
  }

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

  .site-nav a,
  .nav-cta {
    padding: 12px;
    color: var(--ink);
    background: transparent;
    border-radius: 8px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-collage {
    min-height: 360px;
    display: block;
  }

  .hero-img {
    position: absolute;
  }

  .hero-img-main {
    left: 0;
    top: 0;
    width: 88%;
    height: 245px;
  }

  .hero-img-small.top {
    display: none;
  }

  .hero-img-small.bottom {
    right: 0;
    bottom: 0;
    width: 58%;
    height: 175px;
    object-fit: cover;
  }

  .float-card {
    position: absolute;
    left: 0;
    bottom: 18px;
    width: min(68%, 260px);
    padding: 14px;
  }

  .float-card strong {
    font-size: 18px;
  }

  .trust-row {
    gap: 8px;
  }

  .trust-row span,
  .trust-row strong {
    padding: 8px 10px;
    font-size: 12px;
  }

  .service-grid,
  .study-steps,
  .class-mode-grid,
  .aeas-gallery,
  .resource-gallery,
  .timeline,
  .camp-detail-grid,
  .camp-extra-grid,
  .program-grid,
  .faq-grid,
  .reason-grid {
    grid-template-columns: 1fr;
  }

  .service-grid {
    display: flex;
    gap: 14px;
    margin-inline: -20px;
    padding: 0 20px 8px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .service-grid .service-card {
    flex: 0 0 min(86vw, 360px);
    scroll-snap-align: start;
  }

  .service-grid .image-card {
    grid-template-rows: 210px auto;
  }

  .image-card {
    grid-column: auto;
  }

  .pte-media img {
    min-height: 260px;
  }

  .aeas-gallery img:nth-child(2) {
    margin-top: 0;
  }

  .australia-band {
    min-height: 720px;
  }

  .australia-panel {
    margin: 20px;
  }

  .wechat-card {
    align-items: flex-start;
    flex-direction: column;
  }

  .wechat-card img {
    width: 160px;
  }

  .site-footer {
    flex-direction: column;
  }
}