:root {
  --ink: #e8ece7;
  --muted: rgba(232, 236, 231, 0.66);
  --canvas: #101814;
  --canvas-deep: #0b100e;
  --line: rgba(232, 236, 231, 0.18);
  --paper: #e8e4d9;
  --season-accent: #d5d81c;
  --season-ink: #142216;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Songti SC", "STSong", "Noto Serif CJK SC", "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --font-sans: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--canvas-deep);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--canvas-deep);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

.page-noise {
  position: fixed;
  z-index: 20;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

/* Header */
.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
  transform: translateY(-112%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.7s var(--ease-out), opacity 0.5s ease;
}

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

.header-inner {
  display: grid;
  grid-template-columns: minmax(210px, 0.95fr) minmax(440px, 1.85fr) minmax(235px, 1fr);
  align-items: center;
  min-height: 76px;
  padding: 0 3.2vw;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(10, 16, 13, 0.77);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: max-content;
  max-width: 100%;
  gap: 10px;
  padding: 0;
  border: 0;
  color: var(--ink);
  background: transparent;
  cursor: default;
  text-align: left;
}

.brand-mark,
.hero-brand-mark,
.footer-mark {
  flex: 0 0 auto;
  width: 29px;
  height: 29px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.35;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  overflow: hidden;
  max-width: 260px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-copy small {
  color: rgba(232, 236, 231, 0.53);
  font-size: 8px;
  letter-spacing: 0.18em;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: clamp(11px, 1.18vw, 24px);
  white-space: nowrap;
}

.main-nav button,
.header-actions button {
  border: 0;
  color: rgba(241, 244, 239, 0.79);
  background: transparent;
  cursor: default;
  transition: color 0.3s ease;
}

.main-nav button {
  padding: 8px 0;
  font-size: 11px;
  letter-spacing: 0.025em;
}

.main-nav button:first-child {
  color: #fff;
}

.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: clamp(8px, 0.8vw, 17px);
  white-space: nowrap;
}

.header-actions button {
  padding: 6px 0;
  font-size: 10px;
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--season-accent) !important;
  cursor: pointer !important;
}

.language-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}

.member-action {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 9px !important;
  border: 1px solid rgba(255, 255, 255, 0.24) !important;
}

/* Hero */
.hero {
  position: relative;
  isolation: isolate;
  min-height: 100svh;
  height: 100svh;
  overflow: hidden;
  background: #1a2417;
}

.hero-backgrounds,
.hero-background,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-background {
  opacity: 0;
  background-position: center;
  background-size: cover;
  transform: scale(1.035);
  transition: opacity 1.1s var(--ease-out), transform 2.25s var(--ease-out), filter 1s ease;
  will-change: opacity, transform;
}

.hero-background.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero-background[data-season-background="spring"] {
  background-image: url("./assets/changbai-spring-hero.png");
}

.hero-background[data-season-background="summer"] {
  background-image: url("./assets/changbai-summer-hero.png");
}

.hero-background[data-season-background="autumn"] {
  background-image: url("./assets/changbai-autumn-hero.png");
}

.hero-background[data-season-background="winter"] {
  background-image: url("./assets/changbai-winter-glamping-hero-20260806.png");
}

.hero-shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(5, 11, 7, 0.76) 0%, rgba(6, 12, 8, 0.38) 39%, rgba(6, 10, 7, 0.07) 68%, rgba(5, 9, 7, 0.22) 100%),
    linear-gradient(0deg, rgba(6, 12, 8, 0.65) 0%, transparent 32%, rgba(4, 10, 7, 0.18) 100%);
}

body[data-season="winter"] .hero-shade {
  background:
    linear-gradient(90deg, rgba(13, 25, 30, 0.75) 0%, rgba(14, 25, 30, 0.39) 42%, rgba(18, 26, 29, 0.06) 70%, rgba(15, 24, 28, 0.17) 100%),
    linear-gradient(0deg, rgba(12, 23, 28, 0.63) 0%, transparent 35%, rgba(11, 22, 26, 0.16) 100%);
}

.hero-orbit {
  position: absolute;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.21);
  border-radius: 50%;
  pointer-events: none;
}

.orbit-one {
  top: -46vw;
  right: -24vw;
  width: 70vw;
  height: 70vw;
  opacity: 0.35;
}

.orbit-two {
  right: -7vw;
  bottom: -40vw;
  width: 43vw;
  height: 43vw;
  border-color: color-mix(in srgb, var(--season-accent) 65%, transparent);
  opacity: 0.4;
}

.hero-topbar {
  position: absolute;
  z-index: 4;
  top: 35px;
  left: 4.7vw;
  right: 4.7vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
}

.hero-brand-mark {
  width: 26px;
  height: 26px;
}

.hero-location {
  display: flex;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.83);
  font-size: 10px;
  letter-spacing: 0.11em;
}

.location-pin {
  width: 7px;
  height: 7px;
  border: 1px solid var(--season-accent);
  border-radius: 50%;
  box-shadow: 0 0 13px var(--season-accent);
}

.hero-content {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: clamp(26px, 10.4vw, 175px);
  width: min(900px, 65vw);
  transform: translateY(-43%);
}

.hero-eyebrow,
.section-cap,
.card-label,
.manifesto-kicker,
.footer-label {
  margin: 0;
  color: var(--season-accent);
  font-size: 10px;
  letter-spacing: 0.18em;
}

.hero-eyebrow {
  margin-bottom: 27px;
  text-transform: uppercase;
}

.hero-title-wrap {
  position: relative;
}

.hero-sideword {
  position: absolute;
  top: 8px;
  left: -66px;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-sans);
  font-size: 8px;
  letter-spacing: 0.25em;
  transform: rotate(-90deg) translateX(-100%);
  transform-origin: top left;
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(46px, 5.5vw, 95px);
  font-weight: 400;
  letter-spacing: 0.055em;
  line-height: 1.12;
  text-shadow: 0 8px 35px rgba(0, 0, 0, 0.17);
}

.hero-description {
  max-width: 430px;
  min-height: 2.4em;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 1.9;
}

.hero-line {
  width: min(276px, 45vw);
  height: 1px;
  margin: 29px 0 13px;
  background: linear-gradient(90deg, var(--season-accent), rgba(255, 255, 255, 0.16));
}

.hero-caption-row {
  display: flex;
  gap: 24px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.season-dock {
  position: absolute;
  z-index: 4;
  right: clamp(24px, 5.1vw, 90px);
  bottom: 47px;
  display: flex;
  align-items: flex-end;
  gap: clamp(20px, 3vw, 52px);
}

.season-dock-title {
  margin: 0 0 6px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
  letter-spacing: 0.13em;
  writing-mode: vertical-rl;
}

.season-options {
  display: flex;
  align-items: flex-end;
  gap: clamp(11px, 1.3vw, 24px);
}

.season-button {
  position: relative;
  display: grid;
  justify-items: start;
  gap: 8px;
  min-width: 43px;
  padding: 0 0 13px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.33);
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  cursor: pointer;
  transition: color 0.45s var(--ease-out), border-color 0.45s ease;
}

.season-button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--season-accent);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-out);
}

.season-button:hover,
.season-button.is-active {
  color: #fff;
  border-bottom-color: transparent;
}

.season-button.is-active::after {
  transform: scaleX(1);
}

.season-index {
  color: rgba(255, 255, 255, 0.52);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.season-button > span:last-child {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.12em;
}

.scroll-cue {
  position: absolute;
  z-index: 4;
  bottom: 43px;
  left: clamp(26px, 4.7vw, 84px);
  display: flex;
  align-items: center;
  gap: 11px;
  color: rgba(255, 255, 255, 0.57);
  font-size: 9px;
  letter-spacing: 0.15em;
}

.scroll-cue-line {
  display: inline-block;
  width: 34px;
  height: 1px;
  background: rgba(255, 255, 255, 0.6);
  animation: breathe 2.4s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: scaleX(0.42); transform-origin: left; opacity: 0.45; }
  50% { transform: scaleX(1); transform-origin: left; opacity: 1; }
}

/* Body and reusable section elements */
.site-body {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(68% 38% at 82% 10%, rgba(70, 101, 70, 0.25), transparent 67%),
    radial-gradient(45% 26% at 0% 34%, rgba(109, 95, 42, 0.15), transparent 72%),
    linear-gradient(155deg, #142019 0%, #101813 36%, #0c120f 100%);
}

.site-body::before,
.site-body::after {
  position: absolute;
  z-index: 0;
  width: min(67vw, 950px);
  height: min(67vw, 950px);
  border: 1px solid rgba(219, 226, 215, 0.075);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.site-body::before {
  top: 11%;
  right: -42vw;
}

.site-body::after {
  top: 50%;
  left: -50vw;
}

.section-shell {
  position: relative;
  z-index: 1;
  width: min(1230px, calc(100% - 11vw));
  margin: 0 auto;
}

.opening {
  padding: clamp(108px, 14vw, 205px) 0 clamp(110px, 13vw, 190px);
}

.section-cap {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  text-transform: uppercase;
}

.section-number {
  color: rgba(232, 236, 231, 0.85);
  font-size: 10px;
}

.section-rule {
  display: inline-block;
  width: 36px;
  height: 1px;
  background: currentColor;
  opacity: 0.9;
}

.opening-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(250px, 0.78fr);
  align-items: end;
  gap: clamp(55px, 13vw, 190px);
  margin-top: 39px;
}

.opening h2,
.section-heading h2,
.brand-manifesto h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(38px, 4.5vw, 70px);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.24;
}

.opening h2 {
  max-width: 680px;
}

.opening-copy {
  padding-bottom: 5px;
}

.opening-copy > p,
.section-heading > p,
.card-body > p,
.stay-copy > p,
.footer-address > p,
.footer-note > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.06em;
  line-height: 2;
}

.opening-signature {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-top: 28px;
  color: var(--season-accent);
  font-size: 9px;
  letter-spacing: 0.15em;
}

.signature-line {
  width: 28px;
  height: 1px;
  background: currentColor;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 50px;
  margin-bottom: 47px;
}

.section-heading h2 {
  margin-top: 28px;
}

.section-heading > p {
  width: min(390px, 37%);
  margin-bottom: 3px;
}

/* Activity cards */
.activities {
  padding-bottom: clamp(130px, 15vw, 225px);
}

.activity-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  grid-template-rows: minmax(330px, 33vw) minmax(270px, 25vw) minmax(278px, 25vw);
  gap: 14px;
}

.story-card {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  isolation: isolate;
  background: #26352a;
}

.story-card-tall {
  grid-row: span 2;
}

.story-card-wide {
  grid-column: 1 / -1;
}

.card-image,
.stay-image {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  transition: transform 1.1s var(--ease-out), filter 0.9s ease;
}

.card-rv .card-image { background-image: url("./assets/rv-camping.png"); }
.card-meadow .card-image { background-image: url("./assets/changbai-spring-hero.png"); background-position: 60% center; }
.card-pool .card-image { background-image: url("./assets/infinity-pool.png"); }
.card-atv .card-image { background-image: url("./assets/atv-forest-crossing.png"); background-position: center 62%; }

.card-wash,
.stay-gradient {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 9, 6, 0.18) 0%, rgba(4, 9, 6, 0.16) 37%, rgba(4, 9, 6, 0.88) 100%);
}

.story-card-wide .card-wash {
  background: linear-gradient(90deg, rgba(4, 8, 6, 0.82) 0%, rgba(4, 9, 6, 0.54) 42%, rgba(4, 9, 6, 0.12) 100%);
}

.card-topline {
  position: absolute;
  z-index: 2;
  top: 23px;
  right: 26px;
  left: 26px;
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.7);
  font-size: 9px;
  letter-spacing: 0.14em;
}

.card-body {
  position: absolute;
  z-index: 2;
  right: 30px;
  bottom: 30px;
  left: 30px;
  max-width: 520px;
}

.card-body .card-label,
.stay-copy .card-label {
  margin-bottom: 11px;
}

.card-body h3,
.stay-copy h3 {
  margin: 0;
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(27px, 2.35vw, 39px);
  font-weight: 400;
  letter-spacing: 0.09em;
  line-height: 1.25;
}

.card-body > p:last-of-type {
  max-width: 405px;
  margin-top: 13px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  line-height: 1.75;
}

.card-arrow {
  position: absolute;
  right: 0;
  bottom: 0;
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  color: var(--season-accent);
  font-size: 15px;
  transition: color 0.4s ease, background 0.4s ease, transform 0.5s var(--ease-out);
}

.story-card:hover .card-image,
.stay-panel:hover .stay-image {
  filter: saturate(1.07);
  transform: scale(1.045);
}

.story-card:hover .card-arrow {
  color: var(--season-ink);
  background: var(--season-accent);
  transform: rotate(45deg);
}

/* Stay and dining */
.stays {
  padding-bottom: clamp(140px, 17vw, 270px);
}

.stays-heading {
  margin-bottom: 48px;
}

.stay-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: min(55vw, 680px);
  gap: 14px;
}

.stay-panel {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  isolation: isolate;
}

.dining-panel .stay-image {
  background-image: url("./assets/rv-camping.png");
  background-position: 64% center;
}

.hotel-panel .stay-image {
  background-image: url("./assets/changbai-winter-glamping-hero-20260806.png");
  background-position: center;
}

.stay-gradient {
  background: linear-gradient(180deg, rgba(7, 11, 9, 0.1), rgba(6, 10, 8, 0.83) 87%);
}

.hotel-panel .stay-gradient {
  background: linear-gradient(90deg, rgba(7, 13, 14, 0.74), rgba(7, 13, 14, 0.15) 79%), linear-gradient(0deg, rgba(7, 13, 14, 0.42), transparent 55%);
}

.stay-copy {
  position: absolute;
  z-index: 2;
  right: clamp(24px, 3.2vw, 52px);
  bottom: clamp(27px, 3.4vw, 53px);
  left: clamp(24px, 3.2vw, 52px);
  max-width: 490px;
}

.stay-number {
  position: absolute;
  top: -82px;
  left: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.stay-copy > p:not(.card-label) {
  max-width: 420px;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.77);
  font-size: 12px;
  line-height: 1.82;
}

.stay-copy blockquote {
  max-width: 410px;
  margin: 14px 0 0;
  color: var(--season-accent);
  font-family: var(--font-display);
  font-size: clamp(18px, 1.55vw, 25px);
  letter-spacing: 0.1em;
  line-height: 1.48;
}

.panel-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 21px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.9);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.panel-link i {
  color: var(--season-accent);
  font-size: 16px;
  font-style: normal;
}

/* Manifesto and footer */
.brand-manifesto {
  position: relative;
  z-index: 1;
  min-height: 485px;
  padding: clamp(105px, 11vw, 174px) 9vw;
  overflow: hidden;
  text-align: center;
  background:
    linear-gradient(120deg, rgba(8, 14, 10, 0.77), rgba(17, 26, 18, 0.47)),
    url("./assets/changbai-autumn-hero.png") center / cover;
}

.brand-manifesto::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(5, 10, 7, 0.45) 100%);
  content: "";
}

.manifesto-circles {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(70vw, 820px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.manifesto-circles::before,
.manifesto-circles::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  content: "";
}

.manifesto-circles::before { inset: 11%; }
.manifesto-circles::after { inset: 23%; }

.manifesto-kicker {
  position: relative;
  margin-bottom: 23px;
  color: var(--season-accent);
}

.brand-manifesto h2 {
  position: relative;
  max-width: 950px;
  margin: 0 auto;
  color: #fff;
  font-size: clamp(30px, 3.7vw, 58px);
  line-height: 1.58;
  text-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: 65px 5.5vw 23px;
  background: #0a0f0c;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(235px, 1.4fr) 0.85fr 1.2fr minmax(220px, 0.9fr);
  gap: clamp(30px, 4vw, 76px);
  width: min(1320px, 100%);
  margin: 0 auto;
  padding-bottom: 56px;
}

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

.footer-mark {
  width: 39px;
  height: 39px;
  margin-bottom: 14px;
  color: var(--season-accent);
}

.footer-brand p {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.1em;
}

.footer-brand small {
  margin-top: 9px;
  color: rgba(232, 236, 231, 0.52);
  font-size: 9px;
  letter-spacing: 0.11em;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 11px;
  padding-top: 7px;
}

.footer-label {
  margin-bottom: 6px;
  color: var(--season-accent);
}

.footer-column a,
.footer-column > span,
.footer-address span {
  color: rgba(232, 236, 231, 0.8);
  font-size: 12px;
  letter-spacing: 0.045em;
}

.footer-address > p,
.footer-note > p {
  color: rgba(232, 236, 231, 0.68);
  font-size: 11px;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1320px, 100%);
  margin: 0 auto;
  padding-top: 19px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(232, 236, 231, 0.39);
  font-size: 9px;
  letter-spacing: 0.08em;
}

/* Floating rail */
.floating-rail {
  position: fixed;
  z-index: 31;
  top: 50%;
  right: clamp(13px, 1.9vw, 33px);
  display: flex;
  flex-direction: column;
  overflow: visible;
  border-top: 1px solid rgba(26, 33, 29, 0.5);
  transform: translateY(-50%);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.rail-button {
  position: relative;
  display: grid;
  width: 39px;
  height: 39px;
  place-items: center;
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(26, 33, 29, 0.5);
  color: rgba(30, 39, 34, 0.88);
  background: rgba(242, 244, 238, 0.72);
  cursor: default;
  transition: color 0.35s ease, background 0.35s ease, transform 0.35s var(--ease-out);
}

.rail-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.25;
}

.rail-button:not(.rail-top):hover {
  color: #fff;
  background: #1b2a21;
}

.rail-top {
  color: var(--season-ink);
  background: var(--season-accent);
  cursor: pointer;
}

.rail-top:hover {
  transform: translateY(-3px);
}

.rail-tooltip {
  position: absolute;
  right: calc(100% + 9px);
  display: block;
  padding: 5px 7px;
  color: white;
  background: rgba(11, 16, 12, 0.86);
  font-size: 9px;
  letter-spacing: 0.06em;
  opacity: 0;
  pointer-events: none;
  transform: translateX(4px);
  transition: opacity 0.25s ease, transform 0.25s var(--ease-out);
  white-space: nowrap;
}

.rail-button:hover .rail-tooltip,
.rail-button:focus-visible .rail-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Language-specific typesetting */
body[data-lang="en"] .hero h1,
body[data-lang="en"] .opening h2,
body[data-lang="en"] .section-heading h2,
body[data-lang="en"] .brand-manifesto h2 {
  letter-spacing: 0.015em;
}

body[data-lang="en"] .hero-description,
body[data-lang="en"] .opening-copy > p,
body[data-lang="en"] .section-heading > p,
body[data-lang="en"] .card-body > p:last-of-type,
body[data-lang="en"] .stay-copy > p:not(.card-label) {
  letter-spacing: 0.025em;
  line-height: 1.72;
}

/* Responsive */
@media (max-width: 1200px) {
  .header-inner {
    grid-template-columns: minmax(190px, 1fr) minmax(400px, 1.8fr) minmax(100px, 0.65fr);
    padding: 0 2.4vw;
  }

  .utility-action,
  .member-action {
    display: none !important;
  }

  .main-nav { gap: 13px; }
  .main-nav button { font-size: 10px; }
  .section-shell { width: min(1120px, calc(100% - 9vw)); }
}

@media (max-width: 860px) {
  .header-inner {
    display: flex;
    min-height: 64px;
    padding: 0 20px;
    gap: 15px;
  }

  .brand-copy strong { max-width: 185px; font-size: 11px; }
  .brand-copy small { font-size: 7px; }
  .main-nav { display: none; }
  .header-actions { margin-left: auto; }

  .hero-topbar { top: 24px; left: 24px; right: 24px; }
  .hero-content { left: 8vw; width: min(620px, 81vw); }
  .hero-sideword { display: none; }
  .hero-description { font-size: 12px; }
  .season-dock { right: 8vw; bottom: 28px; }
  .scroll-cue { bottom: 29px; left: 8vw; }
  .season-dock-title { display: none; }
  .season-options { gap: 16px; }
  .season-button { min-width: 35px; }
  .section-shell { width: min(100% - 48px, 680px); }
  .opening-layout,
  .section-heading { display: block; }
  .opening-copy { margin-top: 31px; }
  .section-heading > p { width: auto; margin-top: 22px; }
  .activity-grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .story-card,
  .story-card-tall,
  .story-card-wide { grid-column: auto; grid-row: auto; min-height: 430px; }
  .story-card-wide .card-wash { background: linear-gradient(180deg, rgba(4, 9, 6, 0.16), rgba(4, 9, 6, 0.85) 100%); }
  .stay-layout { grid-template-columns: 1fr; min-height: 0; }
  .stay-panel { min-height: 480px; }
  .footer-main { grid-template-columns: 1.2fr 1fr; }
  .footer-note { grid-column: 1 / -1; }
  .floating-rail { right: 10px; }
  .rail-button { width: 36px; height: 36px; }
}

@media (max-width: 560px) {
  .hero { min-height: 100svh; }
  .hero h1 { font-size: clamp(40px, 12vw, 59px); line-height: 1.22; }
  .hero-content { top: 45%; transform: translateY(-40%); }
  .hero-eyebrow { margin-bottom: 20px; font-size: 9px; }
  .hero-description { max-width: 310px; margin-top: 20px; font-size: 11px; line-height: 1.8; }
  .hero-line { margin-top: 22px; }
  .hero-caption-row { gap: 10px; flex-wrap: wrap; font-size: 8px; }
  .hero-location { font-size: 8px; }
  .hero-brand { font-size: 9px; }
  .season-dock { right: 24px; bottom: 20px; }
  .season-options { gap: 11px; }
  .season-button { gap: 5px; padding-bottom: 8px; }
  .season-button > span:last-child { font-size: 15px; }
  .season-index { font-size: 7px; }
  .scroll-cue { display: none; }
  .orbit-one { top: -28vw; right: -42vw; width: 95vw; height: 95vw; }
  .orbit-two { right: -15vw; bottom: -25vw; width: 65vw; height: 65vw; }
  .opening { padding: 95px 0 103px; }
  .section-cap { font-size: 8px; letter-spacing: 0.13em; }
  .section-number { font-size: 8px; }
  .section-rule { width: 26px; }
  .opening h2,
  .section-heading h2 { font-size: 35px; }
  .opening-copy > p,
  .section-heading > p { font-size: 12px; line-height: 1.85; }
  .activities { padding-bottom: 100px; }
  .section-heading { margin-bottom: 30px; }
  .activity-grid { gap: 10px; }
  .story-card,
  .story-card-tall,
  .story-card-wide { min-height: 390px; }
  .card-topline { top: 18px; right: 20px; left: 20px; }
  .card-body { right: 21px; bottom: 23px; left: 21px; }
  .card-body h3,
  .stay-copy h3 { font-size: 28px; }
  .card-body > p:last-of-type { max-width: calc(100% - 30px); font-size: 11px; }
  .card-arrow { width: 28px; height: 28px; }
  .stays { padding-bottom: 110px; }
  .stay-layout { gap: 10px; }
  .stay-panel { min-height: 420px; }
  .stay-copy { right: 22px; bottom: 25px; left: 22px; }
  .stay-copy > p:not(.card-label) { font-size: 11px; }
  .brand-manifesto { min-height: 390px; padding: 90px 26px; }
  .brand-manifesto h2 { font-size: 29px; line-height: 1.55; }
  .manifesto-kicker { font-size: 8px; }
  .site-footer { padding: 46px 24px 20px; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; padding-bottom: 40px; }
  .footer-note { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 8px; font-size: 8px; }
  .floating-rail { top: auto; right: 9px; bottom: 12px; transform: none; flex-direction: row; border-top: 0; border-left: 1px solid rgba(26, 33, 29, 0.5); }
  .rail-button { width: 34px; height: 34px; border-bottom: 0; border-right: 1px solid rgba(26, 33, 29, 0.5); }
  .floating-rail .rail-button:not(.rail-top) { display: none; }
  .rail-tooltip { right: 0; bottom: calc(100% + 7px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}