/* ============================================================
   LIMHAND - HAND OF CREATION
   Static concept page with bilingual content and theme support
   ============================================================ */

:root {
  --bg-base: #060607;
  --bg-band: #0d0d0f;
  --bg-panel: #121216;
  --bg-raised: #19191f;
  --text-1: #f6f0e7;
  --text-2: rgba(246, 240, 231, 0.76);
  --text-3: rgba(246, 240, 231, 0.56);
  --text-4: rgba(246, 240, 231, 0.38);
  --line-1: rgba(246, 240, 231, 0.10);
  --line-2: rgba(246, 240, 231, 0.18);
  --gold: #c8a66b;
  --gold-soft: #f3d99c;
  --blue: #6aa8ff;
  --blue-deep: #17457f;
  --shadow: rgba(0, 0, 0, 0.42);
  --font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-zh: "Noto Serif SC", "PingFang SC", "Microsoft YaHei", serif;
  --font-brush: "Ma Shan Zheng", "Noto Serif SC", "PingFang SC", serif;
  --nav-h: 64px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.65s;
}

[data-theme="light"] {
  --bg-base: #f4f0e8;
  --bg-band: #ebe4d8;
  --bg-panel: #fffaf0;
  --bg-raised: #f7eddd;
  --text-1: #171512;
  --text-2: rgba(23, 21, 18, 0.74);
  --text-3: rgba(23, 21, 18, 0.56);
  --text-4: rgba(23, 21, 18, 0.36);
  --line-1: rgba(23, 21, 18, 0.10);
  --line-2: rgba(23, 21, 18, 0.18);
  --gold: #9b7439;
  --gold-soft: #b88d48;
  --blue: #245fa8;
  --blue-deep: #dce8f8;
  --shadow: rgba(43, 34, 20, 0.16);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 90% 40% at 50% 0%, rgba(200, 166, 107, 0.08), transparent 64%),
    linear-gradient(rgba(246, 240, 231, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(246, 240, 231, 0.028) 1px, transparent 1px),
    var(--bg-base);
  background-size: auto, 96px 96px, 96px 96px;
  color: var(--text-1);
  font-family: var(--font-main);
  line-height: 1.6;
}

main {
  position: relative;
  overflow: hidden;
}

main::before {
  content: "";
  position: absolute;
  top: 86vh;
  bottom: 0;
  left: max(24px, calc(50% - 590px));
  z-index: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(200, 166, 107, 0.34) 12%, rgba(106, 168, 255, 0.12) 44%, rgba(200, 166, 107, 0.26) 76%, transparent);
  pointer-events: none;
}

main::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 48% 22% at 18% 18%, rgba(243, 217, 156, 0.13), transparent 72%),
    radial-gradient(ellipse 46% 24% at 86% 36%, rgba(106, 168, 255, 0.10), transparent 74%),
    radial-gradient(ellipse 58% 32% at 52% 68%, rgba(200, 166, 107, 0.10), transparent 72%);
}

main > section {
  position: relative;
  z-index: 1;
}

.container,
.hero-layout,
.footer-inner {
  position: relative;
  z-index: 2;
}

body,
body *:not(img):not(svg):not(path):not(line):not(circle):not(span) {
  transition:
    background-color 0.28s var(--ease),
    border-color 0.28s var(--ease),
    color 0.2s var(--ease);
}

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

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

ul {
  list-style: none;
}

button {
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
  font: inherit;
}

::selection {
  background: rgba(200, 166, 107, 0.28);
  color: var(--text-1);
}

.show-on-zh {
  display: none;
}

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

[data-lang="zh"] .show-on-zh {
  display: inline;
}

[data-lang="zh"] body {
  font-family: var(--font-main);
}

.container {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

[data-theme="light"] .eyebrow {
  color: var(--gold);
}

.section {
  position: relative;
  padding: 128px 0;
  background:
    radial-gradient(ellipse 70% 34% at 50% -8%, rgba(200, 166, 107, 0.10), transparent 62%),
    var(--bg-base);
}

.section::before,
.atelier-band::after,
.engineering-band::after,
.contact-section::before {
  content: "";
  position: absolute;
  top: -92px;
  right: 0;
  left: 0;
  height: 170px;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent, rgba(200, 166, 107, 0.08), transparent),
    radial-gradient(ellipse 42% 70% at 50% 50%, rgba(106, 168, 255, 0.10), transparent 68%);
}

.section-header {
  position: relative;
  max-width: 760px;
  margin-bottom: 64px;
}

.section-header::after {
  content: "";
  display: block;
  width: min(360px, 62%);
  height: 1px;
  margin-top: 30px;
  background: linear-gradient(90deg, rgba(243, 217, 156, 0.74), rgba(106, 168, 255, 0.12), transparent);
}

#creation .section-header {
  margin-left: 4%;
}

#aesthetics .section-header {
  margin-right: 8%;
  margin-left: auto;
}

.section-title {
  max-width: 840px;
  margin-bottom: 22px;
  color: var(--text-1);
  font-family: var(--font-display);
  font-size: 4.8rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 0.96;
}

#aesthetics .section-header::after {
  margin-left: auto;
  background: linear-gradient(270deg, rgba(243, 217, 156, 0.74), rgba(106, 168, 255, 0.12), transparent);
}

[data-lang="zh"] .section-title,
[data-lang="zh"] .hero-headline {
  font-family: var(--font-zh);
  font-weight: 700;
}

.section-sub {
  max-width: 640px;
  color: var(--text-2);
  font-size: 1.08rem;
  font-weight: 300;
  line-height: 1.85;
}

.btn-primary,
.btn-ghost,
.btn-contact,
.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  white-space: nowrap;
}

.btn-primary {
  border: 1px solid rgba(243, 217, 156, 0.34);
  background: linear-gradient(135deg, #f0d18d, #9b6c2e);
  color: #101012;
  padding: 0 22px;
  box-shadow: 0 16px 42px rgba(200, 166, 107, 0.24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 56px rgba(200, 166, 107, 0.28);
}

.btn-ghost {
  border: 1px solid rgba(246, 240, 231, 0.28);
  background: rgba(246, 240, 231, 0.04);
  color: var(--text-1);
  padding: 0 22px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.btn-ghost:hover {
  border-color: rgba(246, 240, 231, 0.46);
  background: rgba(246, 240, 231, 0.08);
  transform: translateY(-2px);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out) !important;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal.delay-1 {
  transition-delay: 0.1s;
}

.reveal.delay-2 {
  transition-delay: 0.2s;
}

.reveal.delay-3 {
  transition-delay: 0.3s;
}

.animate-in {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp var(--dur) var(--ease-out) forwards;
}

.animate-in.delay-1 {
  animation-delay: 0.12s;
}

.animate-in.delay-2 {
  animation-delay: 0.24s;
}

.animate-in.delay-3 {
  animation-delay: 0.36s;
}

.animate-in.delay-4 {
  animation-delay: 0.54s;
}

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

#navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  height: var(--nav-h);
  color: rgba(255, 250, 240, 0.9);
}

#navbar.scrolled {
  background: rgba(6, 6, 7, 0.76);
  box-shadow: 0 1px 0 rgba(246, 240, 231, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

[data-theme="light"] #navbar.scrolled {
  background: rgba(244, 240, 232, 0.82);
  color: var(--text-1);
  box-shadow: 0 1px 0 rgba(23, 21, 18, 0.12);
}

.nav-container {
  width: min(100%, 1240px);
  height: 100%;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 12px;
  color: currentColor;
}

.logo-sigil {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--gold-soft);
  filter: drop-shadow(0 0 18px rgba(243, 217, 156, 0.24));
}

.sigil-stroke {
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 82 18;
}

.sigil-line {
  stroke: currentColor;
  stroke-width: 1.35;
  stroke-linecap: round;
  opacity: 0.78;
}

.logo-copy {
  display: grid;
  gap: 1px;
  line-height: 1;
}

.logo-en {
  font-family: var(--font-display);
  font-size: 1.34rem;
  font-weight: 700;
  letter-spacing: 0;
}

.logo-zh {
  font-family: var(--font-brush);
  font-size: 0.98rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--gold-soft);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}

.nav-links a {
  color: rgba(255, 250, 240, 0.74);
  font-size: 0.84rem;
  font-weight: 600;
}

#navbar.scrolled .nav-links a,
[data-theme="light"] #navbar.scrolled .nav-links a {
  color: var(--text-2);
}

.nav-links a:hover,
#navbar.scrolled .nav-links a:hover {
  color: var(--text-1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.theme-toggle,
.lang-toggle {
  min-width: 36px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: currentColor;
  opacity: 0.86;
}

.theme-toggle {
  border-radius: 50%;
}

.theme-toggle:hover,
.lang-toggle:hover {
  opacity: 1;
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.icon-sun {
  display: block;
}

.icon-moon {
  display: none;
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="light"] .icon-moon {
  display: block;
}

.lang-toggle {
  padding: 0 4px;
  font-size: 0.84rem;
  font-weight: 700;
}

.btn-nav {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid rgba(243, 217, 156, 0.44);
  background: rgba(16, 16, 18, 0.52);
  color: #fffaf0;
}

.btn-nav:hover {
  background: rgba(243, 217, 156, 0.18);
}

.hamburger {
  display: none;
  width: 38px;
  height: 38px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.hamburger span {
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.28s var(--ease), opacity 0.2s var(--ease);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  padding: 14px 32px 28px;
  background: rgba(6, 6, 7, 0.92);
  border-top: 1px solid rgba(246, 240, 231, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

[data-theme="light"] .mobile-menu {
  background: rgba(244, 240, 232, 0.94);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid rgba(246, 240, 231, 0.10);
  color: currentColor;
  font-size: 1rem;
  font-weight: 700;
}

#hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: #050506;
  color: #fffaf0;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0.82;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 4, 5, 0.90) 0%, rgba(4, 4, 5, 0.68) 38%, rgba(4, 4, 5, 0.16) 70%, rgba(4, 4, 5, 0.38) 100%),
    linear-gradient(180deg, rgba(4, 4, 5, 0.46) 0%, rgba(4, 4, 5, 0.08) 36%, rgba(4, 4, 5, 0.78) 100%);
}

.blueprint-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 250, 240, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 250, 240, 0.055) 1px, transparent 1px);
  background-size: 76px 76px;
}

.arcane-symbol {
  position: absolute;
  z-index: 2;
  width: 340px;
  aspect-ratio: 1;
  color: rgba(243, 217, 156, 0.62);
  opacity: 0.46;
  pointer-events: none;
  mix-blend-mode: screen;
  filter:
    drop-shadow(0 0 18px rgba(243, 217, 156, 0.28))
    drop-shadow(0 0 44px rgba(106, 168, 255, 0.12));
}

.arcane-symbol::before,
.arcane-symbol::after,
.arcane-symbol i {
  content: "";
  position: absolute;
  border-color: currentColor;
  pointer-events: none;
}

.arcane-symbol::before {
  inset: 0;
  border: 1px solid rgba(243, 217, 156, 0.32);
  border-radius: 50%;
  background:
    conic-gradient(from 18deg, transparent 0 18deg, rgba(243, 217, 156, 0.42) 18deg 20deg, transparent 20deg 82deg, rgba(106, 168, 255, 0.32) 82deg 84deg, transparent 84deg 180deg, rgba(243, 217, 156, 0.30) 180deg 182deg, transparent 182deg 312deg, rgba(243, 217, 156, 0.40) 312deg 314deg, transparent 314deg 360deg),
    radial-gradient(circle, transparent 0 33%, rgba(243, 217, 156, 0.18) 33% 33.5%, transparent 34% 55%, rgba(106, 168, 255, 0.13) 55% 55.5%, transparent 56%);
  -webkit-mask-image: radial-gradient(circle, transparent 0 16%, black 17% 100%);
  mask-image: radial-gradient(circle, transparent 0 16%, black 17% 100%);
}

.arcane-symbol::after {
  inset: 18%;
  border-width: 1px 0 0 1px;
  border-style: solid;
  border-radius: 48% 52% 44% 56%;
  transform: rotate(38deg);
  opacity: 0.72;
}

.arcane-symbol i:nth-child(1) {
  top: 50%;
  left: 11%;
  width: 78%;
  height: 1px;
  background: linear-gradient(90deg, transparent, currentColor, transparent);
  opacity: 0.64;
}

.arcane-symbol i:nth-child(2) {
  top: 11%;
  left: 50%;
  width: 1px;
  height: 78%;
  background: linear-gradient(180deg, transparent, currentColor, transparent);
  opacity: 0.48;
}

.arcane-symbol i:nth-child(3) {
  inset: 32%;
  border: 1px solid rgba(243, 217, 156, 0.34);
  border-radius: 50%;
  transform: rotate(-24deg);
  box-shadow: inset 0 0 22px rgba(243, 217, 156, 0.10), 0 0 28px rgba(243, 217, 156, 0.18);
}

.arcane-symbol--hero {
  right: 8%;
  bottom: 12%;
  width: 420px;
  opacity: 0.28;
}

.arcane-symbol--vision {
  top: -96px;
  left: 8%;
  width: 360px;
  opacity: 0.22;
}

.arcane-symbol--creation {
  top: 128px;
  right: 4%;
  width: 300px;
}

.arcane-symbol--atelier {
  bottom: 72px;
  left: 9%;
  width: 380px;
  opacity: 0.28;
}

.arcane-symbol--aesthetics {
  top: 104px;
  right: 12%;
  width: 320px;
  transform: rotate(-16deg);
}

.arcane-symbol--engineering {
  top: 112px;
  left: 7%;
  width: 340px;
  transform: rotate(12deg);
}

.arcane-symbol--contact {
  right: 13%;
  bottom: 36px;
  width: 300px;
  opacity: 0.34;
}

.hero-layout {
  position: relative;
  z-index: 3;
  width: min(100%, 1240px);
  min-height: 100svh;
  margin: 0 auto;
  padding: 132px 32px 92px;
  display: grid;
  grid-template-columns: minmax(0, 680px) 1fr;
  align-items: center;
  gap: 64px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
}

.hero-eyebrow {
  color: var(--gold-soft);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-headline {
  color: #fffaf0;
  font-family: var(--font-display);
  font-size: 6.1rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 0.88;
}

.hero-headline span {
  display: block;
}

.headline-accent {
  color: #f0c978;
  text-shadow: 0 0 32px rgba(240, 201, 120, 0.18);
}

.hero-sub {
  width: min(100%, 560px);
  color: rgba(255, 250, 240, 0.76);
  font-size: 1.16rem;
  font-weight: 300;
  line-height: 1.78;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 2px;
}

.hero-cta .btn-ghost {
  border-color: rgba(255, 250, 240, 0.30);
  color: #fffaf0;
}

.hero-cta .btn-ghost:hover {
  border-color: rgba(255, 250, 240, 0.52);
  background: rgba(255, 250, 240, 0.10);
}

.hero-quote {
  justify-self: end;
  align-self: center;
  width: 280px;
  display: grid;
  gap: 18px;
  color: rgba(255, 250, 240, 0.70);
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-style: italic;
  line-height: 1.08;
}

.hero-quote::before {
  content: "";
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(243, 217, 156, 0.78));
}

.hero-quote span:last-child {
  margin-left: 42px;
  color: rgba(243, 217, 156, 0.84);
}

.hero-scroll {
  position: absolute;
  right: 32px;
  bottom: 28px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 250, 240, 0.58);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.scroll-bar {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, rgba(243, 217, 156, 0), rgba(243, 217, 156, 0.86));
}

.statement-band {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  background:
    radial-gradient(ellipse 70% 54% at 50% 48%, rgba(243, 217, 156, 0.12), transparent 68%),
    radial-gradient(ellipse 54% 38% at 18% 18%, rgba(106, 168, 255, 0.08), transparent 70%),
    linear-gradient(180deg, rgba(6, 6, 7, 0.20), var(--bg-band) 20%, var(--bg-band) 74%, rgba(6, 6, 7, 0.55)),
    var(--bg-band);
  border-top: 1px solid rgba(200, 166, 107, 0.08);
  border-bottom: 1px solid rgba(200, 166, 107, 0.08);
}

.statement-band::before,
.statement-band::after {
  content: "";
  position: absolute;
  right: 0;
  left: 0;
  height: 120px;
  pointer-events: none;
}

.statement-band::before {
  top: -1px;
  background: linear-gradient(180deg, #050506, transparent);
}

.statement-band::after {
  bottom: -1px;
  background: linear-gradient(0deg, var(--bg-base), transparent);
}

.section > .container,
.atelier-band > .container,
.engineering-band > .container,
.contact-section > .container {
  position: relative;
  z-index: 3;
}

#creation {
  background:
    radial-gradient(ellipse 76% 42% at 21% 36%, rgba(243, 217, 156, 0.13), transparent 70%),
    radial-gradient(ellipse 52% 36% at 86% 24%, rgba(106, 168, 255, 0.10), transparent 70%),
    linear-gradient(180deg, var(--bg-base), #0b0b0d 46%, var(--bg-base));
}

#creation::after,
#aesthetics::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  opacity: 0.16;
  filter: saturate(0.9) blur(1px);
  -webkit-mask-image: radial-gradient(ellipse 82% 62% at 50% 46%, black 0%, transparent 76%);
  mask-image: radial-gradient(ellipse 82% 62% at 50% 46%, black 0%, transparent 76%);
}

#creation::after {
  background-image:
    linear-gradient(90deg, rgba(6, 6, 7, 0.88), rgba(6, 6, 7, 0.20), rgba(6, 6, 7, 0.84)),
    url("../images/creation-codex.png");
}

#aesthetics {
  background:
    radial-gradient(ellipse 70% 44% at 70% 34%, rgba(243, 217, 156, 0.12), transparent 70%),
    radial-gradient(ellipse 54% 36% at 18% 68%, rgba(106, 168, 255, 0.09), transparent 72%),
    linear-gradient(180deg, #070708, #0f0f12 48%, #070708);
}

#aesthetics::after {
  background-image:
    linear-gradient(90deg, rgba(6, 6, 7, 0.78), rgba(6, 6, 7, 0.34), rgba(6, 6, 7, 0.80)),
    url("../images/aesthetics.png");
}

.statement-text {
  max-width: 980px;
  margin: 0 auto;
  color: var(--text-1);
  font-family: var(--font-display);
  font-size: 2.45rem;
  font-weight: 300;
  line-height: 1.34;
  text-align: center;
}

[data-lang="zh"] .statement-text {
  font-family: var(--font-zh);
  font-weight: 500;
}

.module-image {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 2px;
  background: transparent;
  box-shadow: 0 34px 110px rgba(0, 0, 0, 0.46);
  isolation: isolate;
  -webkit-mask-image: radial-gradient(ellipse 78% 70% at 50% 50%, black 62%, rgba(0, 0, 0, 0.86) 82%, transparent 100%);
  mask-image: radial-gradient(ellipse 78% 70% at 50% 50%, black 62%, rgba(0, 0, 0, 0.86) 82%, transparent 100%);
}

.module-image::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(ellipse 68% 52% at 50% 50%, transparent 54%, rgba(6, 6, 7, 0.56) 100%),
    linear-gradient(135deg, rgba(243, 217, 156, 0.12), transparent 36%, rgba(106, 168, 255, 0.08));
  pointer-events: none;
}

.module-image::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 250, 240, 0.04), transparent 34%, rgba(0, 0, 0, 0.22)),
    linear-gradient(90deg, rgba(200, 166, 107, 0.12), transparent 28%, rgba(106, 168, 255, 0.10));
  mix-blend-mode: screen;
}

.module-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  transform: scale(1.018);
}

.creation-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 54px;
  align-items: stretch;
}

.creation-layout::before,
.atelier-detail::before,
.aesthetic-showcase::before,
.engineering-layout::before {
  content: "";
  position: absolute;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(200, 166, 107, 0.48), rgba(106, 168, 255, 0.18), transparent);
}

.creation-layout::before,
.aesthetic-showcase::before {
  top: -34px;
  right: 8%;
  left: 8%;
  height: 1px;
}

.creation-layout > .module-image {
  min-height: 650px;
  transform: translateX(-34px);
}

.codex-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px 48px;
  align-content: center;
  padding: 54px 0 34px;
}

.codex-card,
.aesthetic-card {
  position: relative;
  min-height: 0;
  padding: 0 0 0 28px;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(90deg, rgba(200, 166, 107, 0.10), transparent 72%);
  box-shadow: none;
}

.codex-card:hover,
.aesthetic-card:hover {
  background: linear-gradient(90deg, rgba(200, 166, 107, 0.16), transparent 76%);
}

.codex-card::before,
.aesthetic-card::before,
.process-item::before,
.engineering-item::before {
  content: "";
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gold-soft), rgba(200, 166, 107, 0.12) 70%);
  box-shadow: 0 0 24px rgba(243, 217, 156, 0.34);
}

.codex-card:nth-child(2) {
  margin-top: 74px;
}

.codex-card:nth-child(3) {
  margin-top: -26px;
  margin-left: -26px;
}

.codex-card:nth-child(4) {
  margin-top: 44px;
  margin-left: 18px;
}

.codex-card h3,
.aesthetic-card h3,
.process-item h3,
.engineering-item h3 {
  margin-bottom: 12px;
  color: var(--text-1);
  font-family: var(--font-display);
  font-size: 1.52rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.25;
}

[data-lang="zh"] .codex-card h3,
[data-lang="zh"] .aesthetic-card h3,
[data-lang="zh"] .process-item h3,
[data-lang="zh"] .engineering-item h3 {
  font-family: var(--font-zh);
  font-weight: 700;
}

.codex-card p,
.aesthetic-card p,
.process-item p,
.engineering-item p {
  color: rgba(246, 240, 231, 0.58);
  font-size: 1.02rem;
  line-height: 1.84;
}

.atelier-band {
  position: relative;
  overflow: hidden;
  padding: 132px 0;
  background:
    linear-gradient(90deg, rgba(6, 6, 7, 0.78), rgba(6, 6, 7, 0.18), rgba(6, 6, 7, 0.82)),
    radial-gradient(ellipse 72% 42% at 62% 32%, rgba(243, 217, 156, 0.14), transparent 68%),
    radial-gradient(ellipse 48% 30% at 22% 72%, rgba(106, 168, 255, 0.10), transparent 70%),
    url("../images/atelier.png"),
    linear-gradient(180deg, rgba(6, 6, 7, 0.85), transparent 18%, transparent 80%, rgba(6, 6, 7, 0.72)),
    linear-gradient(135deg, rgba(200, 166, 107, 0.10), transparent 36%),
    linear-gradient(90deg, var(--bg-base), var(--bg-band));
  background-size: auto, auto, auto, cover, auto, auto, auto;
  background-position: center, center, center, center, center, center, center;
  border-top: 1px solid var(--line-1);
  border-bottom: 1px solid var(--line-1);
}

.atelier-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-1) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-1) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.56;
  pointer-events: none;
}

.atelier-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 96px;
  align-items: start;
}

.atelier-copy {
  position: sticky;
  top: 112px;
}

.atelier-detail {
  position: relative;
  display: grid;
  gap: 56px;
}

.atelier-detail::before {
  top: 50%;
  left: -74px;
  width: 74px;
  height: 1px;
}

.atelier-detail .module-image {
  aspect-ratio: 16 / 10;
  transform: translateX(34px);
}

.process-list {
  display: grid;
  gap: 42px;
  border-top: 0;
}

.process-item {
  position: relative;
  max-width: 560px;
  padding: 0 0 0 34px;
  border-bottom: 0;
}

.process-item:nth-child(1) {
  margin-left: 8%;
}

.process-item:nth-child(2) {
  margin-left: 25%;
}

.process-item:nth-child(3) {
  margin-left: 14%;
}

.process-item:nth-child(4) {
  margin-left: 34%;
}

.aesthetic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px 54px;
  align-content: center;
  padding: 42px 0;
}

.aesthetic-showcase {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  gap: 72px;
  align-items: stretch;
}

.aesthetic-showcase > .module-image {
  min-height: 560px;
  transform: translateY(46px);
}

.aesthetic-card {
  min-height: 0;
  padding: 0 0 0 28px;
}

.aesthetic-card:nth-child(2) {
  margin-top: 88px;
}

.aesthetic-card:nth-child(3) {
  margin-top: -32px;
  margin-left: 28px;
}

.aesthetic-card:nth-child(4) {
  margin-top: 62px;
}

.aesthetic-card h3 {
  margin-bottom: 18px;
}

.engineering-band {
  padding: 128px 0;
  background:
    linear-gradient(90deg, rgba(8, 10, 14, 0.82), rgba(8, 10, 14, 0.28), rgba(8, 10, 14, 0.86)),
    radial-gradient(ellipse 70% 42% at 20% 30%, rgba(106, 168, 255, 0.12), transparent 70%),
    radial-gradient(ellipse 64% 34% at 74% 72%, rgba(243, 217, 156, 0.12), transparent 72%),
    url("../images/engineering.png"),
    linear-gradient(180deg, rgba(9, 27, 54, 0.32), transparent),
    var(--bg-band);
  background-size: auto, auto, auto, cover, auto, auto;
  background-position: center, center, center, center, center, center;
  border-top: 1px solid var(--line-1);
  border-bottom: 1px solid var(--line-1);
}

.engineering-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 100px;
}

.engineering-layout::before {
  top: -38px;
  right: 10%;
  left: 10%;
  height: 1px;
}

.engineering-copy {
  position: sticky;
  top: 112px;
  align-self: start;
}

.engineering-copy .module-image {
  aspect-ratio: 16 / 11;
  margin-top: 36px;
  transform: translateX(-26px);
}

.engineering-list {
  display: grid;
  gap: 58px;
  align-content: center;
  padding: 70px 0 20px;
  border-top: 0;
}

.engineering-item {
  position: relative;
  max-width: 620px;
  padding: 0 0 0 34px;
  border-bottom: 0;
}

.engineering-item:nth-child(1) {
  margin-left: 14%;
}

.engineering-item:nth-child(2) {
  margin-left: 0;
}

.engineering-item:nth-child(3) {
  margin-left: 22%;
}

.contact-section {
  padding: 132px 0;
  background:
    radial-gradient(ellipse 66% 50% at 42% 40%, rgba(243, 217, 156, 0.16), transparent 70%),
    radial-gradient(ellipse 42% 30% at 78% 62%, rgba(106, 168, 255, 0.10), transparent 70%),
    linear-gradient(180deg, var(--bg-base), #0e0d0c 50%, var(--bg-base));
}

.contact-inner {
  max-width: 780px;
}

.btn-contact {
  margin-top: 34px;
  padding: 0 24px;
  border: 1px solid rgba(106, 168, 255, 0.36);
  background: rgba(106, 168, 255, 0.10);
  color: var(--text-1);
}

.btn-contact:hover {
  border-color: rgba(106, 168, 255, 0.58);
  background: rgba(106, 168, 255, 0.16);
  transform: translateY(-2px);
}

#footer {
  padding: 42px 0;
  background: var(--bg-band);
  border-top: 1px solid var(--line-1);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  flex-shrink: 0;
  color: var(--text-1);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
}

.footer-brand span:last-child {
  font-family: var(--font-brush);
  color: var(--gold);
  font-size: 1.05rem;
  font-weight: 400;
}

.footer-inner p {
  color: var(--text-3);
  font-size: 0.92rem;
}

.lang-toggle--sm {
  margin-left: auto;
  color: var(--text-2);
}

@media (max-width: 1080px) {
  .section-title {
    font-size: 3.35rem;
  }

  .hero-headline {
    font-size: 4.35rem;
  }

  .creation-layout,
  .aesthetic-showcase,
  .atelier-layout,
  .engineering-layout {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .atelier-copy,
  .engineering-copy {
    position: static;
  }

  .creation-layout > .module-image,
  .atelier-detail .module-image,
  .aesthetic-showcase > .module-image,
  .engineering-copy .module-image {
    transform: none;
  }

  .creation-layout > .module-image,
  .aesthetic-showcase > .module-image {
    min-height: auto;
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 860px) {
  :root {
    --nav-h: 60px;
  }

  .nav-links,
  .btn-nav {
    display: none;
  }

  .hamburger {
    display: inline-flex;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    align-items: end;
    padding-top: 112px;
    padding-bottom: 86px;
  }

  .hero-image {
    object-position: 62% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(4, 4, 5, 0.88), rgba(4, 4, 5, 0.42)),
      linear-gradient(180deg, rgba(4, 4, 5, 0.56) 0%, rgba(4, 4, 5, 0.22) 34%, rgba(4, 4, 5, 0.84) 100%);
  }

  .hero-quote {
    display: none;
  }

  .hero-headline {
    font-size: 4rem;
  }

  .hero-sub {
    font-size: 1.04rem;
  }

  .section,
  .atelier-band,
  .engineering-band,
  .contact-section {
    padding: 96px 0;
  }

  .statement-band {
    padding: 82px 0;
  }

  .statement-text {
    font-size: 1.55rem;
    text-align: left;
  }

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

  .aesthetic-showcase {
    gap: 34px;
  }

  .module-image {
    box-shadow: 0 16px 50px var(--shadow);
  }
}

@media (max-width: 620px) {
  .container,
  .nav-container,
  .hero-layout {
    padding-right: 20px;
    padding-left: 20px;
  }

  .nav-container {
    gap: 12px;
  }

  .nav-actions {
    gap: 6px;
  }

  .logo-sigil {
    width: 30px;
    height: 30px;
  }

  .logo-en {
    font-size: 1.08rem;
  }

  .logo-zh {
    font-size: 0.82rem;
  }

  .nav-logo {
    gap: 6px;
  }

  .lang-toggle {
    padding: 0;
    font-size: 0.78rem;
  }

  .theme-toggle {
    min-width: 34px;
  }

  .hero-headline {
    font-size: 3.1rem;
    line-height: 1.04;
  }

  .hero-content {
    gap: 22px;
  }

  .hero-cta {
    width: 100%;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
  }

  .hero-scroll {
    right: 20px;
    bottom: 22px;
  }

  .section-title {
    font-size: 2.5rem;
    line-height: 1.12;
  }

  .section-header {
    margin-bottom: 42px;
  }

  #creation .section-header,
  #aesthetics .section-header {
    margin-right: 0;
    margin-left: 0;
  }

  .codex-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 16px 0 0;
  }

  .creation-layout,
  .atelier-detail,
  .aesthetic-showcase,
  .engineering-layout {
    gap: 36px;
  }

  .module-image,
  .creation-layout > .module-image,
  .aesthetic-showcase > .module-image,
  .atelier-detail .module-image,
  .engineering-copy .module-image {
    aspect-ratio: 4 / 3;
    min-height: auto;
  }

  .engineering-copy .module-image {
    margin-top: 26px;
  }

  .codex-card,
  .aesthetic-card {
    min-height: auto;
    padding: 0 0 0 26px;
  }

  .codex-card:nth-child(n),
  .aesthetic-card:nth-child(n),
  .process-item:nth-child(n),
  .engineering-item:nth-child(n) {
    margin-top: 0;
    margin-left: 0;
  }

  .aesthetic-card h3 {
    margin-bottom: 14px;
  }

  .process-item,
  .engineering-item {
    padding: 0 0 0 26px;
  }

  .process-list,
  .engineering-list,
  .aesthetic-grid {
    gap: 34px;
    padding: 0;
  }

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

  .lang-toggle--sm {
    margin-left: 0;
    padding: 0;
  }
}

@media (max-width: 420px) {
  .hero-headline {
    font-size: 2.65rem;
  }

  .section-title {
    font-size: 2.15rem;
  }

  .statement-text {
    font-size: 1.35rem;
  }

  .hero-sub,
  .section-sub {
    font-size: 1rem;
  }
}