:root {
  --ink: #2c3235;
  --muted: #747b80;
  --paper: #f4f4f5;
  --white: #ffffff;
  --yellow: #ffe300;
  --gold: #f5b31a;
  --pink: #e95794;
  --rose: #f5c8da;
  --red: #e6172d;
  --blue: #30a6cf;
  --cyan: #61c4d6;
  --green: #99cf00;
  --orange: #f39800;
  --footer: #282d2f;
  --line: rgba(44, 50, 53, 0.12);
  --shadow: 0 22px 60px rgba(44, 50, 53, 0.14);
  --max: 1682px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-top: 74px;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  padding: 0 clamp(18px, 5vw, 86px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  border-color: var(--line);
  box-shadow: 0 16px 38px rgba(44, 50, 53, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #e6172d;
  font-size: clamp(1rem, 1.6vw, 1.35rem);
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.brand-icon {
  width: 200px;
  height: 100px;
  object-fit: contain;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-container {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 6px 20px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  display: inline-block;
  padding: 8px 16px;
  color: #34383a;
  font-size: 13px;
  font-weight: 700;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  background: rgba(0, 0, 0, 0.05);
}

.site-nav a.active {
  color: #fff;
  background: #2a9d8f;
}

.site-nav a.active:hover {
  background: #238b80;
}

.lang-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background 0.2s ease;
}

.lang-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.lang-toggle svg {
  width: 18px;
  height: 18px;
  color: #34383a;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  margin: 6px auto;
  background: var(--ink);
  transition:
    transform 0.2s ease,
    opacity 0.2s ease;
}

.is-open .menu-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.is-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.is-open .menu-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 52vw;
  background: var(--white);
  overflow: hidden;
}

.hero--image {
  min-height: 0;
}

.hero-media {
  width: 100%;
  height: auto;
}

.hero-copy {
  position: absolute;
  left: clamp(22px, 8vw, 150px);
  top: clamp(92px, 17vw, 250px);
  z-index: 2;
  max-width: 520px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--pink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before,
.eyebrow::after {
  width: 9px;
  height: 9px;
  content: '';
  border: 2px solid currentColor;
  transform: rotate(45deg);
}

.section {
  padding: clamp(58px, 8vw, 120px) clamp(20px, 5vw, 80px);
}

.section--tight {
  padding-block: clamp(42px, 6vw, 78px);
}

.inner {
  width: min(100%, var(--max));
  margin-inline: auto;
}

.section-title {
  margin: 0 0 clamp(28px, 4vw, 56px);
  color: #303436;
  font-family: 'Inter', 'Segoe UI', Arial, Helvetica, sans-serif;
  font-size: clamp(1.25rem, 2.3vw, 2.4rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  text-align: center;
}

.section-title.bracket::before {
  content: '[ ';
}

.section-title.bracket::after {
  content: ' ]';
}

.lead {
  color: var(--muted);
  font-size: clamp(0.92rem, 1.1vw, 1rem);
  line-height: 1.9;
}

.pill-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.color-pill {
  min-height: 58px;
  padding: 14px 18px;
  color: var(--white);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 12px 24px rgba(44, 50, 53, 0.12);
}

.color-pill strong {
  display: block;
  font-size: clamp(0.95rem, 1.2vw, 1.15rem);
}

.color-pill small {
  display: block;
  margin-top: 2px;
  font-size: 0.58rem;
  font-weight: 800;
  opacity: 0.82;
  text-transform: uppercase;
}

.color-pill:nth-child(1) {
  background: linear-gradient(90deg, #df1559, #f26f9f);
}

.color-pill:nth-child(2) {
  background: linear-gradient(90deg, #0f7fb9, #4cc7df);
}

.color-pill:nth-child(3) {
  background: linear-gradient(90deg, #e33d2f, #f6ae18);
}

.color-pill:nth-child(4) {
  background: linear-gradient(90deg, #81bd13, #d0dc00);
}

.icon-dot {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 1.4vw, 18px);
}

.image-card {
  position: relative;
  display: block;
  overflow: hidden;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(44, 50, 53, 0.08);
  text-align: inherit;
}

.image-card img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.image-card:hover img {
  transform: scale(1.04);
  cursor: pointer;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.stat {
  min-height: 86px;
  padding: 20px 22px;
  border-radius: 4px;
  background: var(--white);
}
.stat:hover {
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(44, 50, 53, 0.07);
}
.stat span {
  display: block;
  color: #9aa0a4;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat strong {
  display: block;
  margin-top: 6px;
  color: var(--blue);
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.social-band {
  padding-block: clamp(58px, 8vw, 100px);
  color: var(--white);
  background: var(--cyan);
  text-align: center;
}

.social-band--pink {
  color: #e85897;
  background: #f4c7d9;
}
.social-band--pink .inner-footer-icon {
  height: 21px;
}
.qr-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(26px, 7vw, 120px);
  width: min(900px, 100%);
  margin: 28px auto 0;
}

.qr-item {
  display: grid;
  justify-items: center;
  gap: 30px;
  font-family: MHeiGB;
  font-weight: normal;
  font-size: 18px;
  color: #e85897;
}

.qr-item img {
  width: 86px;
  height: 86px;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.footer {
  padding: clamp(46px, 7vw, 86px) clamp(20px, 5vw, 80px);
  color: rgba(255, 255, 255, 0.72);
  background: var(--footer);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: clamp(28px, 5vw, 84px);
  width: min(100%, var(--max));
  margin: 0 auto;
}

.footer-logo {
  margin: 0 0 24px;
  color: var(--white);
  font-size: clamp(1.31rem, 2.2vw, 2.44rem);
  font-weight: 900;
}

.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.62);
  font-size: clamp(0.5rem, 0.7vw, 1.13rem);
  line-height: 1.9;
}

.footer-links {
  display: grid;
  gap: 10px;
}

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

.footer-qr img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  opacity: 0.78;
  mix-blend-mode: screen;
}

.lanhu-footer {
  width: 100%;
  min-height: clamp(238px, 18.5vw, 766px);
  padding: clamp(26px, 1.8vw, 52px) 0 clamp(26px, 1.8vw, 52px);
  color: rgba(255, 255, 255, 0.92);
  background: #2f4058;
}

.lanhu-footer-inner {
  --lanhu-footer-title-row: clamp(18px, 1.2vw, 50px);
  --lanhu-footer-title-gap: clamp(8px, 0.6vw, 18px);
  --lanhu-footer-qr-size: clamp(42px, 3vw, 124px);
  --lanhu-footer-row-gap: clamp(20px, 1.5vw, 48px);
  --lanhu-footer-main-gap: clamp(24px, 2.5vw, 44px);
  --lanhu-footer-qr-column-gap: clamp(24px, 3.2vw, 60px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content max-content;
  align-items: end;
  column-gap: var(--lanhu-footer-main-gap);
  width: min(87.8vw, 3588px);
  min-height: clamp(168px, 9.5vw, 393px);
  margin: 0 auto;
}

.lanhu-footer-brand {
  align-self: end;
}

.lanhu-footer-brand strong {
  display: block;
  margin: 0 0 clamp(12px, 1vw, 24px);
  color: #eef4ff;
  font-size: clamp(2rem, 2.5vw, 3.5rem);
  font-weight: 900;
  line-height: 0.84;
  letter-spacing: 0;
}

.lanhu-footer-brand p,
.lanhu-footer-contact p {
  margin: 0;
  color: rgba(238, 244, 255, 0.36);
  font-family: 'Inter', 'Segoe UI', Arial, Helvetica, sans-serif;
  font-size: clamp(0.75rem, 0.85vw, 0.95rem);
  line-height: 1.5;
}

.lanhu-footer-brand p {
  max-width: 900px;
  margin-top: 24px;
}

.lanhu-footer-contact {
  align-self: end;
  display: grid;
  grid-template-rows: repeat(
    2,
    calc(
      var(--lanhu-footer-title-row) + var(--lanhu-footer-title-gap) +
        var(--lanhu-footer-qr-size)
    )
  );
  gap: var(--lanhu-footer-row-gap);
}

.lanhu-footer-contact section {
  display: grid;
  grid-template-rows: var(--lanhu-footer-title-row) auto;
  align-content: start;
  row-gap: var(--lanhu-footer-title-gap);
}

.lanhu-footer-contact h2,
.lanhu-footer-qr figcaption {
  margin: 0;
  color: #eef4ff;
  font-family: 'Inter', 'Segoe UI', Arial, Helvetica, sans-serif;
  font-size: clamp(0.75rem, 0.95vw, 1.19rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0;
}

.lanhu-footer-qr {
  align-self: end;
  justify-self: end;
  display: grid;
  width: max-content;
  grid-template-columns: repeat(2, max-content);
  grid-auto-rows: calc(
    var(--lanhu-footer-title-row) + var(--lanhu-footer-title-gap) +
      var(--lanhu-footer-qr-size)
  );
  gap: var(--lanhu-footer-row-gap) var(--lanhu-footer-qr-column-gap);
}

.lanhu-footer-qr figure {
  display: grid;
  grid-template-rows: var(--lanhu-footer-title-row) var(--lanhu-footer-qr-size);
  justify-items: center;
  align-content: start;
  row-gap: var(--lanhu-footer-title-gap);
  margin: 0;
  text-align: center;
}

.lanhu-footer-qr figcaption {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  min-height: var(--lanhu-footer-title-row);
  margin: 0;
  font-size: clamp(0.69rem, 0.85vw, 1rem);
  white-space: nowrap;
}

.lanhu-footer-qr img {
  width: var(--lanhu-footer-qr-size);
  height: var(--lanhu-footer-qr-size);
  margin: 0 auto;
  opacity: 0.42;
}

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: var(--white);
  background: var(--ink);
  box-shadow: 0 16px 34px rgba(44, 50, 53, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

.back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(0, 0, 0, 0.76);
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: min(1120px, 94vw);
  max-height: 86vh;
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

.lightbox button {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  color: var(--ink);
  background: var(--white);
  font-size: 22px;
}

@media (max-width: 1500px) {
  .lanhu-footer-inner {
    width: min(calc(100% - 72px), 1280px);
    grid-template-columns: minmax(0, 1fr) max-content max-content;
    column-gap: min(3.2vw, 60px);
  }
}

@media (max-width: 920px) {
  body {
    padding-top: 66px;
  }

  .site-header {
    height: 66px;
  }

  .nav-right {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 66px 0 auto;
    display: grid;
    gap: 0;
    padding: 18px 22px 26px;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform 0.22s ease;
  }

  .site-nav a {
    padding: 13px 16px;
    border-radius: 8px;
  }

  .is-open .site-nav {
    transform: translateY(0);
  }

  .pill-row,
  .stats,
  .image-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .lanhu-footer {
    min-height: 0;
    padding: 64px 0 72px;
  }

  .lanhu-footer-inner {
    --lanhu-footer-title-row: 38px;
    --lanhu-footer-title-gap: 14px;
    --lanhu-footer-qr-size: 78px;
    --lanhu-footer-row-gap: 32px;
    --lanhu-footer-qr-column-gap: 24px;
    width: min(calc(100% - 38px), 720px);
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .lanhu-footer-brand,
  .lanhu-footer-contact,
  .lanhu-footer-qr {
    align-self: auto;
  }

  .lanhu-footer-brand strong {
    margin-bottom: 28px;
    font-size: clamp(1.5rem, 2vw, 2.5rem);
    line-height: 0.9;
  }

  .lanhu-footer-brand p,
  .lanhu-footer-contact p {
    font-size: clamp(0.75rem, 1.5vw, 0.95rem);
    line-height: 1.5;
  }

  .lanhu-footer-contact {
    grid-template-columns: minmax(0, 0.97fr) minmax(0, 1.03fr);
    grid-template-rows: none;
    gap: 0 22px;
  }

  .lanhu-footer-contact section {
    min-width: 0;
  }

  .lanhu-footer-contact h2,
  .lanhu-footer-qr figcaption {
    margin-bottom: 0;
    font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  }

  .lanhu-footer-qr {
    max-width: 420px;
    width: 100%;
    justify-self: stretch;
    grid-template-columns: minmax(0, 0.97fr) minmax(0, 1.03fr);
    gap: var(--lanhu-footer-row-gap) var(--lanhu-footer-qr-column-gap);
  }

  .lanhu-footer-qr figure {
    grid-template-rows: var(--lanhu-footer-title-row) var(
        --lanhu-footer-qr-size
      );
    justify-items: start;
    row-gap: var(--lanhu-footer-title-gap);
    text-align: left;
  }

  .lanhu-footer-qr figcaption {
    justify-content: flex-start;
    min-height: var(--lanhu-footer-title-row);
    margin-bottom: 0;
    white-space: nowrap;
    text-align: left;
  }

  .lanhu-footer-qr img {
    width: var(--lanhu-footer-qr-size);
    height: var(--lanhu-footer-qr-size);
    margin: 0;
  }

  .qr-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .section {
    padding-inline: 16px;
  }

  .hero-copy {
    position: relative;
    left: auto;
    top: auto;
    padding: 92px 20px 24px;
  }

  .hero--image .hero-copy {
    position: absolute;
    left: 18px;
    top: 72px;
    padding: 0;
  }

  .hero-media {
    min-height: 320px;
    object-fit: cover;
  }

  .lanhu-footer {
    padding: 54px 0 62px;
  }

  .lanhu-footer-inner {
    --lanhu-footer-title-row: 34px;
    --lanhu-footer-title-gap: 10px;
    --lanhu-footer-qr-size: 68px;
    --lanhu-footer-row-gap: 28px;
    --lanhu-footer-qr-column-gap: 16px;
    width: min(calc(100% - 32px), 420px);
    gap: 38px;
  }

  .lanhu-footer-brand strong {
    font-size: clamp(1.75rem, 2.5vw, 3.19rem);
  }

  .lanhu-footer-contact {
    gap: 0 14px;
  }

  .lanhu-footer-contact h2 {
    font-size: clamp(0.75rem, 2vw, 0.95rem);
    line-height: 1.15;
  }

  .lanhu-footer-contact p {
    font-size: clamp(0.75rem, 2vw, 0.95rem);
    line-height: 1.8;
  }

  .lanhu-footer-qr {
    width: 100%;
    max-width: none;
    grid-template-columns: minmax(0, 0.97fr) minmax(0, 1.03fr);
    gap: var(--lanhu-footer-row-gap) 14px;
  }

  .lanhu-footer-qr figcaption {
    min-height: var(--lanhu-footer-title-row);
    font-size: clamp(0.69rem, 2vw, 0.88rem);
    line-height: 1.35;
  }

  .lanhu-footer-qr figure {
    grid-template-rows: var(--lanhu-footer-title-row) var(
        --lanhu-footer-qr-size
      );
    row-gap: var(--lanhu-footer-title-gap);
  }

  .lanhu-footer-qr img {
    width: var(--lanhu-footer-qr-size);
    height: var(--lanhu-footer-qr-size);
  }
}