:root {
  color-scheme: light dark;
  --accent: #d97757;
  --accent-deep: #9f4f37;
  --accent-soft: #f0c9ba;
  --page: #f7f5ef;
  --paper: #fffdf8;
  --surface: #ebe5da;
  --wheat: #eee3d4;
  --sage: #e7e1d7;
  --ink: #1d1c1a;
  --ink-soft: #46433e;
  --muted: #706b63;
  --line: #d8d2c7;
  --line-strong: #aaa39a;
  --night: #171716;
  --night-soft: #292825;
  --button-ink: #f8f5ee;
  --button-bg: #171716;
  --button-text: #f8f5ee;
  --danger: #a74438;
  --success: #39704f;
  --max-width: 1480px;
  --side: clamp(1.25rem, 4.8vw, 5rem);
  --radius: 8px;
  --radius-card: 18px;
  --font-sans: Inter, "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Iowan Old Style", Baskerville, Georgia, "Songti SC", STSong,
    "Times New Roman", serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #e38a6c;
    --accent-deep: #f0a287;
    --accent-soft: #6f4133;
    --page: #171715;
    --paper: #201f1c;
    --surface: #292722;
    --wheat: #302820;
    --sage: #292722;
    --ink: #f1eee7;
    --ink-soft: #d0cbc1;
    --muted: #a29c92;
    --line: #3b3832;
    --line-strong: #625c52;
    --night: #0f0f0e;
    --night-soft: #22211e;
    --button-bg: #f1eee7;
    --button-text: #171715;
    --danger: #e18b80;
    --success: #87c29e;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

button {
  color: inherit;
  font: inherit;
}

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

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--page) 90%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--page) 97%, var(--paper) 3%);
  border-color: var(--line);
}

.site-nav {
  width: min(100%, var(--max-width));
  min-height: 4.75rem;
  margin: 0 auto;
  padding: 0 var(--side);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.wordmark {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 8rem;
}

.wordmark::after {
  content: "";
  position: absolute;
  right: -0.62rem;
  bottom: 0.2rem;
  width: 0.38rem;
  height: 0.38rem;
  background: var(--accent);
  transform: rotate(45deg);
}

.wordmark img,
.footer-mark img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: left center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.75rem);
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 520;
}

.nav-links a {
  position: relative;
  padding: 0.45rem 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.22rem;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.primary-btn,
.action-link {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  border: 1px solid var(--button-bg);
  border-radius: var(--radius);
  background: var(--button-bg);
  color: var(--button-text);
  cursor: pointer;
  font-size: 0.93rem;
  font-weight: 620;
  transition: background 180ms ease, border-color 180ms ease,
    transform 180ms ease;
}

.primary-btn:hover,
.action-link:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(-1px);
}

.button-arrow {
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 180ms ease;
}

.primary-btn:hover .button-arrow {
  transform: translateX(0.2rem);
}

.arrow-icon {
  width: 1rem;
  height: 1rem;
  object-fit: contain;
}

.quiet-link {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-soft);
  font-size: 0.93rem;
  font-weight: 560;
  transition: border-color 180ms ease, color 180ms ease;
}

.quiet-link:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.mobile-menu-btn {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.42rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 1.1rem;
  height: 1px;
  background: var(--ink);
  transition: transform 180ms ease;
}

.mobile-menu-btn.active span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.mobile-menu-btn.active span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.section-shell {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding-left: var(--side);
  padding-right: var(--side);
  scroll-margin-top: 5rem;
}

.hero {
  min-height: clamp(34rem, calc(100svh - 8rem), 46rem);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(19rem, 0.7fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 9rem);
  padding-top: 3.5rem;
  padding-bottom: 4.5rem;
}

.eyebrow {
  margin-bottom: 1.2rem;
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.split-section h2,
.contact-band h2,
.section-heading h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 10ch;
  font-size: 6.75rem;
  line-height: 0.94;
}

.hero-title {
  overflow: visible;
}

.hero-path,
.hero-words {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.03em;
  max-width: 10ch;
}

.hero-line {
  display: flex;
  align-items: baseline;
  gap: 0.18em;
  white-space: nowrap;
}

.hero-segment {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.35em);
  animation: heroRise 760ms var(--ease) forwards;
  animation-delay: calc(100ms + var(--step) * 120ms);
}

.hero-line:last-child .hero-segment:last-child {
  color: var(--accent-deep);
}

.hero-words .hero-line:last-child .hero-segment:last-child {
  font-style: italic;
}

@keyframes heroRise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-intro {
  max-width: 31rem;
  align-self: center;
  padding-top: 5.5rem;
}

.hero-intro p {
  color: var(--ink-soft);
  font-size: 1.13rem;
  line-height: 1.62;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.hero-actions .primary-btn {
  padding: 0 1.2rem;
}

.feature-image {
  padding-bottom: 7rem;
}

.feature-image figure {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.feature-image img {
  width: 100%;
  aspect-ratio: 16 / 5.8;
  object-fit: cover;
  object-position: center 52%;
  border-radius: var(--radius-card);
  background: var(--surface);
  filter: saturate(0.82) contrast(0.96) brightness(1.02);
}

.feature-image figcaption {
  padding-top: 0.85rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.feature-image figcaption > .lang-zh,
.feature-image figcaption > .lang-en {
  color: var(--ink);
  font-weight: 650;
}

.releases {
  padding-top: 5rem;
  padding-bottom: 8rem;
  border-top: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 3rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  align-items: end;
  gap: 2rem;
}

.section-heading .eyebrow {
  margin-bottom: 0.45rem;
}

.section-heading h2 {
  font-size: 3.75rem;
  line-height: 1;
}

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

.release-card {
  min-height: 31rem;
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--paper);
  transition: border-color 220ms ease, transform 220ms var(--ease);
}

.release-card:nth-child(2) {
  background: var(--wheat);
}

.release-card:nth-child(3) {
  background: var(--sage);
}

.release-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.release-index {
  margin-bottom: 5rem;
  color: var(--accent-deep);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
}

.release-card h3 {
  margin-bottom: 0.8rem;
  font-family: var(--font-serif);
  font-size: 2.15rem;
  font-weight: 400;
  line-height: 1.05;
}

.release-card p {
  max-width: 28ch;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.55;
}

.release-card dl {
  margin-top: auto;
  padding-top: 2.5rem;
}

.release-card dl div {
  min-height: 3rem;
  padding: 0.75rem 0;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 1rem;
  align-items: center;
  border-top: 1px solid color-mix(in srgb, var(--line-strong) 65%, transparent);
}

.release-card dt {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0;
}

.release-card dd {
  color: var(--ink-soft);
  font-size: 0.82rem;
  text-align: right;
}

.action-link {
  width: fit-content;
  min-height: 2.75rem;
  margin-top: 1.5rem;
  padding: 0 1.05rem;
}

.split-section {
  padding-top: 8rem;
  padding-bottom: 8rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(23rem, 0.9fr);
  gap: clamp(3rem, 8vw, 8rem);
  border-top: 1px solid var(--line);
}

.split-section h2 {
  max-width: 10ch;
  font-size: 5rem;
  line-height: 1.02;
}

.note-list {
  align-self: end;
  border-top: 1px solid var(--ink);
}

.note-row {
  min-height: 5.5rem;
  padding: 0 0.25rem;
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 1.25rem;
  align-items: center;
  border-bottom: 1px solid var(--line-strong);
  transition: color 180ms ease, padding 180ms ease;
}

.note-row::after {
  content: "\2197";
  grid-column: 3;
  color: var(--accent-deep);
  font-size: 1rem;
}

.note-row:hover {
  padding-left: 0.75rem;
  color: var(--accent-deep);
}

.note-row > span:first-child {
  font-size: 0.88rem;
  font-weight: 650;
}

.note-row > span:nth-child(2) {
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 1.08rem;
}

.contact-band {
  width: 100%;
  max-width: none;
  padding-top: 7rem;
  padding-right: max(var(--side), calc((100vw - var(--max-width)) / 2 + var(--side)));
  padding-bottom: 7rem;
  padding-left: max(var(--side), calc((100vw - var(--max-width)) / 2 + var(--side)));
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 3rem;
  background: var(--night);
  color: var(--button-ink);
}

.contact-band .eyebrow {
  color: var(--accent-soft);
}

.contact-band h2 {
  max-width: 16ch;
  font-size: 4.5rem;
  line-height: 1.03;
}

.contact-band .primary-btn {
  min-width: 10.5rem;
  padding: 0 1.4rem;
  border-color: var(--button-ink);
  background: var(--button-ink);
  color: var(--night);
}

.contact-band .primary-btn:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--night);
}

.site-footer {
  padding: 5.5rem var(--side) 2rem;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.footer-inner {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr repeat(3, minmax(9rem, 1fr));
  gap: clamp(2rem, 5vw, 6rem);
}

.footer-mark {
  display: inline-flex;
  width: 7rem;
  height: fit-content;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-column h2 {
  margin-bottom: 0.55rem;
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 750;
}

.footer-column a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.footer-column p {
  max-width: 18rem;
}

.footer-bottom {
  width: min(100%, var(--max-width));
  margin: 4.5rem auto 0;
  padding-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-top: 1px solid var(--line);
}

.copyright {
  color: var(--muted);
  font-size: 0.78rem;
}

.language-switch {
  min-height: 2.7rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 620;
  transition: border-color 180ms ease, background 180ms ease;
}

.language-switch:hover {
  border-color: var(--accent-deep);
  background: var(--accent-soft);
}

.globe-icon {
  position: relative;
  width: 1.05rem;
  height: 1.05rem;
  border: 1.3px solid currentColor;
  border-radius: 50%;
  flex: 0 0 auto;
}

.globe-icon::before,
.globe-icon::after {
  content: "";
  position: absolute;
  inset: 0.16rem;
  border: 1px solid currentColor;
  border-top: 0;
  border-bottom: 0;
  border-radius: 50%;
}

.globe-icon::after {
  inset: 50% 0.1rem auto;
  height: 0;
  border: 0;
  border-top: 1px solid currentColor;
  border-radius: 0;
  transform: translateY(-50%);
}

[data-scroll] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

[data-scroll].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-lang="en"] .lang-zh {
  display: none;
}

[data-lang="zh"] .lang-en {
  display: none;
}

@media (max-width: 1280px) {
  .hero h1 {
    font-size: 5.75rem;
  }

  .split-section h2 {
    font-size: 4.25rem;
  }
}

@media (max-width: 1080px) {
  .hero,
  .split-section,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .hero {
    align-content: center;
    gap: 2.5rem;
  }

  .hero h1 {
    font-size: 5rem;
  }

  .hero-intro {
    max-width: 42rem;
    padding-top: 0;
  }

  .release-grid {
    grid-template-columns: 1fr;
  }

  .release-card {
    min-height: 22rem;
  }

  .release-index {
    margin-bottom: 3rem;
  }

  .split-section h2,
  .contact-band h2 {
    max-width: 13ch;
  }

  .contact-band {
    align-items: start;
  }

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

@media (max-width: 760px) {
  .site-nav {
    min-height: 4.35rem;
  }

  .wordmark {
    width: 7.2rem;
  }

  .mobile-menu-btn {
    position: relative;
    z-index: 22;
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    z-index: 21;
    width: 100vw;
    min-height: 100vh;
    min-height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
    padding: 6.5rem var(--side) max(2rem, env(safe-area-inset-bottom));
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.9rem;
    background: var(--page);
    overflow-y: auto;
    overscroll-behavior: contain;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 400;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.75rem);
    transition: opacity 220ms ease, visibility 220ms ease,
      transform 220ms ease;
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-links a {
    max-width: calc(100vw - var(--side) * 2);
    overflow-wrap: anywhere;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
    padding-bottom: 4.5rem;
  }

  .hero h1 {
    max-width: 100%;
    font-size: 3.75rem;
  }

  .hero-intro p {
    font-size: 1rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.6rem;
  }

  .feature-image {
    padding-bottom: 5rem;
  }

  .feature-image img {
    aspect-ratio: 4 / 5;
    object-position: 58% center;
  }

  .feature-image figcaption {
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
  }

  .feature-image figcaption > span:last-child {
    width: 100%;
  }

  .releases,
  .split-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  .section-heading {
    margin-bottom: 2rem;
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .section-heading h2 {
    font-size: 2.75rem;
  }

  .release-card {
    min-height: 25rem;
  }

  .release-card dl div {
    grid-template-columns: 1fr 1.4fr;
  }

  .split-section h2 {
    max-width: 100%;
    font-size: 3.5rem;
  }

  .note-row {
    min-height: 6rem;
    grid-template-columns: 1fr auto;
    gap: 0.3rem 1rem;
  }

  .note-row::after {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .note-row > span:nth-child(2) {
    grid-column: 1;
  }

  .contact-band {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  .contact-band h2 {
    max-width: 100%;
    font-size: 3.25rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 390px) {
  .hero h1 {
    font-size: 3.2rem;
  }

  .section-heading h2 {
    font-size: 2.4rem;
  }

  .split-section h2,
  .contact-band h2 {
    font-size: 2.85rem;
  }
}

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

@media (prefers-color-scheme: dark) {
  .wordmark img,
  .footer-mark img {
    filter: invert(94%) sepia(8%) saturate(279%) hue-rotate(348deg)
      brightness(101%) contrast(89%);
  }

  .feature-image img {
    filter: saturate(0.72) contrast(0.94) brightness(0.78);
  }
}