:root {
  color-scheme: light;
  --ink: #17211f;
  --muted: #5c6965;
  --soft: #f5f2ec;
  --paper: #fffdf8;
  --line: rgba(23, 33, 31, 0.14);
  --charcoal: #111816;
  --night: #172136;
  --brass: #c59a55;
  --jade: #237467;
  --wine: #8a3d47;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(17, 24, 22, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(8, 11, 10, 0.76), rgba(8, 11, 10, 0));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.brand-copy strong {
  font-size: 17px;
  line-height: 1.1;
}

.brand-copy small {
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.3vw, 30px);
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.82);
}

.nav-links a:hover {
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  min-height: 94vh;
  overflow: hidden;
  color: var(--white);
}

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

.hero-media {
  background-image: url("images/duskstay-shanghai-hero.jpg");
  background-position: center;
  background-size: cover;
  transform: scale(1.01);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(6, 8, 7, 0.82) 0%, rgba(6, 8, 7, 0.64) 33%, rgba(6, 8, 7, 0.2) 66%, rgba(6, 8, 7, 0.28) 100%),
    linear-gradient(180deg, rgba(6, 8, 7, 0.32) 0%, rgba(6, 8, 7, 0.1) 48%, rgba(6, 8, 7, 0.84) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  align-self: center;
  width: min(760px, calc(100% - 40px));
  margin: 0 0 0 clamp(20px, 6vw, 92px);
  padding: 128px 0 116px;
}

.eyebrow {
  margin: 0 0 15px;
  color: var(--brass);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--jade);
}

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

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(48px, 6vw, 86px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.2;
}

.hero-lede {
  max-width: 650px;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-lede.zh {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 14px;
  font-weight: 800;
}

.button-primary {
  border-color: var(--brass);
  background: var(--brass);
  color: #15100a;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  backdrop-filter: blur(14px);
}

.launch-panel {
  position: absolute;
  right: clamp(20px, 5vw, 72px);
  bottom: 38px;
  z-index: 1;
  width: min(380px, calc(100% - 40px));
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(11, 15, 14, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel-label,
.feature-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--brass);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.launch-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
  line-height: 1.16;
}

.launch-panel p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
}

.section {
  padding: clamp(70px, 10vw, 128px) clamp(20px, 5vw, 72px);
}

.section-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.section-intro {
  background: var(--soft);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.85fr) minmax(260px, 1fr) minmax(260px, 1fr);
  gap: clamp(26px, 4vw, 54px);
  align-items: start;
}

.intro-grid p,
.section-heading p,
.feature-card p,
.model-card p,
.partner-row p,
.route-step p,
.contact-layout p,
.site-footer p {
  color: var(--muted);
}

.zh-copy {
  color: #424f4b;
  font-size: 16px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.section-heading.compact {
  margin-bottom: 28px;
}

.section-heading p {
  font-size: 18px;
}

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

.feature-card,
.model-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.feature-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.feature-card h3 {
  max-width: 260px;
}

.section-band {
  background: #e9eee9;
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(300px, 1.2fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: start;
}

.partner-list {
  display: grid;
  gap: 1px;
  background: rgba(23, 33, 31, 0.16);
  border: 1px solid rgba(23, 33, 31, 0.16);
}

.partner-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: start;
  min-height: 112px;
  padding: 24px;
  background: #fbfbf6;
}

.partner-row span {
  color: var(--wine);
  font-weight: 900;
}

.partner-row p {
  margin-bottom: 0;
}

.partner-row em {
  color: var(--ink);
  font-style: normal;
  font-weight: 800;
}

.model-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(180deg, rgba(35, 116, 103, 0.06), rgba(35, 116, 103, 0)),
    var(--white);
}

.model-card small {
  color: var(--wine);
  font-weight: 850;
}

.section-map {
  background: var(--charcoal);
  color: var(--white);
}

.section-map .eyebrow.dark {
  color: var(--brass);
}

.section-map .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.network-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: start;
}

.route-board {
  display: grid;
  gap: 14px;
}

.route-step {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.055);
}

.route-step.active {
  border-color: rgba(197, 154, 85, 0.55);
  background: rgba(197, 154, 85, 0.14);
}

.route-step span {
  grid-row: span 2;
  color: var(--brass);
  font-weight: 900;
}

.route-step strong {
  font-size: 20px;
}

.route-step p {
  grid-column: 2;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.7);
}

.section-quote {
  background: #f7efe5;
}

.quote-inner {
  display: grid;
  grid-template-columns: minmax(300px, 1.1fr) minmax(260px, 0.9fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
}

blockquote {
  margin: 0;
}

blockquote p {
  margin-bottom: 0;
  color: #26302d;
  font-size: clamp(27px, 3.7vw, 47px);
  font-weight: 800;
  line-height: 1.16;
}

.quote-note {
  padding-left: 28px;
  border-left: 4px solid var(--brass);
}

.quote-note strong {
  display: block;
  margin-bottom: 10px;
  color: var(--wine);
  font-size: 18px;
}

.quote-note p {
  margin-bottom: 0;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(280px, 420px);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
}

.contact-card {
  display: grid;
  gap: 14px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 40px rgba(23, 33, 31, 0.08);
  font-style: normal;
}

.contact-card a {
  color: var(--jade);
  font-size: 19px;
  font-weight: 850;
  overflow-wrap: anywhere;
}

.contact-card p {
  margin-bottom: 0;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(260px, 1fr);
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  background: #0e1412;
  color: var(--white);
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.footer-entity {
  text-align: right;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: 860px;
  }

  .hero-content {
    align-self: start;
    margin-left: clamp(20px, 6vw, 56px);
    padding-top: 130px;
  }

  .launch-panel {
    left: clamp(20px, 6vw, 56px);
    right: auto;
  }

  .intro-grid,
  .split,
  .network-layout,
  .quote-inner,
  .contact-layout,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .model-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .model-card {
    min-height: auto;
  }

  .footer-entity {
    text-align: left;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 14px 18px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    min-height: 820px;
  }

  .hero-media {
    background-position: 56% center;
  }

  .hero-content {
    width: calc(100% - 36px);
    margin-left: 18px;
    padding-top: 116px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 32px;
  }

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

  .hero-lede.zh {
    font-size: 15px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .launch-panel {
    left: 18px;
    right: 18px;
    bottom: 22px;
    width: auto;
  }

  .section {
    padding: 62px 18px;
  }

  .feature-card,
  .model-card,
  .contact-card {
    padding: 22px;
  }

  .partner-row,
  .route-step {
    grid-template-columns: 1fr;
  }

  .route-step p {
    grid-column: 1;
  }

  blockquote p {
    font-size: 27px;
  }
}