:root {
  color-scheme: light;
  --ink: #132238;
  --muted: #64748b;
  --line: #dbe5f0;
  --panel: #f7fafc;
  --blue: #1e5aa8;
  --teal: #2e9f93;
  --white: #ffffff;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 6vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  min-width: 0;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.28;
}

.brand-logo {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid #d8e2ee;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  padding: 8px 11px;
  border-radius: 8px;
  text-align: center;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--blue);
  background: #edf5ff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font-size: 22px;
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  overflow: hidden;
  background: #0b1e35;
}

.hero img {
  width: 100%;
  height: calc(100vh - 72px);
  min-height: 520px;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 30, 54, 0.78), rgba(9, 30, 54, 0.2) 62%, rgba(9, 30, 54, 0.08));
}

.hero-copy {
  position: absolute;
  left: 6vw;
  bottom: 12vh;
  z-index: 2;
  max-width: 980px;
  color: var(--white);
}

.hero-copy p,
.page-title p,
.quiet-panel > p:first-child {
  margin: 0 0 12px;
  color: #9fe3d8;
  font-size: 15px;
  font-weight: 700;
}

.bilingual {
  display: flex;
  flex-direction: column;
}

.zh {
  display: block;
}

.en {
  display: block;
  color: var(--muted);
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-size: 0.72em;
  font-weight: 500;
  line-height: 1.35;
}

.brand .en {
  max-width: 360px;
  color: #718096;
  font-size: 11px;
  white-space: nowrap;
}

.site-nav .en {
  color: currentColor;
  font-size: 10px;
}

.hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.hero-copy .hero-subtitle {
  display: block;
  font-size: clamp(18px, 2vw, 26px);
}

.hero-copy .en {
  color: rgba(255, 255, 255, 0.78);
}

.hero-copy p .en {
  font-size: 0.76em;
}

.hero-copy h1 .en {
  margin-top: 8px;
  font-size: clamp(16px, 1.7vw, 24px);
}

.hero-subtitle .zh {
  white-space: nowrap;
}

.hero-subtitle .en {
  margin-top: 5px;
  font-size: 0.68em;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: break-word;
}

.hero-copy h1 .name-part {
  display: inline;
  font-size: inherit;
}

.section-wide,
.section-narrow {
  width: min(1180px, 88vw);
  margin: 0 auto;
}

.section-narrow {
  width: min(900px, 88vw);
}

.intro {
  width: min(1120px, 92vw);
  padding: 54px 0 26px;
  text-align: center;
}

.intro p {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 700;
}

.intro .zh {
  display: block;
  line-height: 1.45;
}

.intro .en {
  display: block;
  max-width: 1060px;
  margin: 10px auto 0;
  font-size: clamp(14px, 1.35vw, 18px);
  font-weight: 500;
  white-space: nowrap;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 22px 0 72px;
}

.image-card {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--panel);
}

.image-card img {
  width: 100%;
  height: 100%;
  min-height: 330px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.image-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(9, 30, 54, 0.82));
}

.image-card > .card-label {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 22px;
  z-index: 1;
  display: block;
  width: calc(100% - 48px);
  color: var(--white);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.18;
  text-align: left;
}

.image-card > .card-label .zh,
.image-card > .card-label .en {
  display: block;
  white-space: nowrap;
}

.image-card > .card-label .en {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  font-weight: 600;
}

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

.page-main {
  min-height: calc(100vh - 150px);
}

.page-title {
  padding: 70px 0 28px;
}

.page-title h1,
.quiet-panel h1 {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15;
}

.page-title h1 .en,
.quiet-panel h1 .en {
  margin-top: 6px;
  font-size: 0.42em;
}

.service-list {
  display: grid;
  gap: 22px;
  padding: 12px 0 76px;
}

.service-row {
  display: grid;
  grid-template-columns: minmax(280px, 52%) 1fr;
  align-items: center;
  min-height: 310px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-row img {
  width: 100%;
  height: 310px;
  object-fit: cover;
}

.service-row div {
  padding: 32px;
}

.service-row h2 {
  margin: 0 0 10px;
  font-size: 30px;
}

.service-row h2 .en {
  margin-top: 2px;
}

.service-row p,
.quiet-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.service-row p .en,
.quiet-panel p .en,
.route-grid p .en,
.contact-panel dd .en {
  margin-top: 4px;
  color: #708096;
  font-size: 0.88em;
}

.split-page {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 34px;
  align-items: stretch;
  padding: 72px 0;
}

.split-page > img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  max-height: 680px;
  object-fit: cover;
  border-radius: 8px;
}

.quiet-panel {
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.quiet-panel h1 {
  margin-bottom: 22px;
}

.quiet-panel p + p {
  margin-top: 16px;
}

.contact-panel dl {
  display: grid;
  gap: 18px;
  margin: 26px 0 0;
}

.contact-panel dl div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.contact-panel dt {
  color: var(--muted);
  font-size: 14px;
}

.contact-panel dt .en {
  font-size: 0.84em;
}

.contact-panel dd {
  margin: 4px 0 0;
  font-size: 20px;
  font-weight: 700;
}

.route-section {
  padding: 0 0 72px;
}

.route-section h2 {
  margin: 0 0 20px;
  font-size: 30px;
}

.route-section h2 .en,
.route-grid h3 .en {
  margin-top: 2px;
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.route-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.route-grid h3 {
  margin: 0 0 14px;
  font-size: 22px;
}

.route-grid p {
  margin: 8px 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  min-height: 78px;
  padding: 18px 6vw;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
  text-align: center;
}

.site-footer .en {
  margin-top: 2px;
  font-size: 0.82em;
}

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

@media (max-width: 820px) {
  .site-header {
    min-height: 64px;
    padding: 0 18px;
  }

  .brand {
    max-width: calc(100vw - 92px);
    font-size: 14px;
  }

  .brand .en {
    max-width: calc(100vw - 110px);
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand-logo {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .nav-toggle {
    display: inline-grid;
    place-items: center;
    flex: 0 0 42px;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 50px rgba(19, 34, 56, 0.14);
  }

  .site-nav a {
    text-align: left;
  }

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

  .hero,
  .hero img {
    min-height: 620px;
    height: calc(100vh - 64px);
  }

  .hero-copy {
    right: 24px;
    left: 24px;
    bottom: 72px;
  }

  .hero-copy h1 {
    font-size: 31px;
    line-height: 1.16;
  }

  .hero-copy h1 .name-part {
    display: block;
  }

  .hero-copy {
    max-width: calc(100vw - 48px);
  }

  .intro .en {
    max-width: 100%;
    white-space: normal;
  }

  .hero-subtitle .zh {
    font-size: clamp(13px, 4vw, 16px);
    white-space: nowrap;
  }

  .hero-subtitle .en {
    font-size: 13px;
    line-height: 1.35;
    max-width: min(100%, 320px);
  }

  .image-grid,
  .split-page,
  .service-row,
  .route-grid {
    grid-template-columns: 1fr;
  }

  .image-card,
  .image-card img {
    min-height: 260px;
  }

  .service-row img {
    height: 245px;
  }

  .service-row div,
  .quiet-panel {
    padding: 24px;
  }

  .split-page {
    padding: 38px 0 56px;
  }

  .split-page > img {
    min-height: 340px;
  }

  .site-footer {
    flex-direction: column;
    gap: 6px;
  }
}