:root {
  --studio-ink: #1c2a2e;
  --studio-teal: #2f6f78;
  --studio-deep: #1f4f56;
  --studio-mist: #d3e4e2;
  --art-paper: #f6f3ee;
  --art-ink: #171614;
  --art-muted: #7a756c;
  --font: Optima, "Optima Regular", "PingFang TC", "Songti TC", "Noto Serif TC", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
html { color-scheme: light; background: var(--art-paper); }

body {
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  font-family: var(--font);
  color: var(--art-ink);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 8;
  opacity: 0.07;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.9'/></svg>");
}

.mast {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(20px, 4vw, 40px) 0;
}

.mast-mark {
  font-size: 13px;
  letter-spacing: 0.38em;
  text-transform: uppercase;
}

.mast-who {
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--art-muted);
}
.mast-who a { opacity: 0.7; }
.mast-who a:hover { opacity: 1; }
.mast-who .lang-switch {
  display: flex;
  gap: 10px;
}
.mast-who .lang-switch a { opacity: 0.45; }
.mast-who .lang-switch a.is-on,
.mast-who .lang-switch a:hover { opacity: 1; }

.gate-frame {
  position: relative;
  z-index: 2;
  margin: 8px clamp(8px, 2vw, 20px);
}

.gate {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
  overflow: visible;
  transition: grid-template-columns 0.7s cubic-bezier(.22, 1, .36, 1);
}

.gate-fade {
  pointer-events: none;
  position: absolute;
  z-index: 6;
}

.gate-fade-studio {
  inset: -2px 50% -2px -2px;
  background:
    linear-gradient(to right, var(--art-paper) 0%, transparent 12%),
    linear-gradient(to bottom, var(--art-paper) 0%, transparent 10%, transparent 90%, var(--art-paper) 100%);
}

.gate-fade-art {
  inset: -2px -2px -2px 50%;
  background:
    linear-gradient(to left, var(--art-paper) 0%, transparent 12%),
    linear-gradient(to bottom, var(--art-paper) 0%, transparent 10%, transparent 90%, var(--art-paper) 100%);
}

.gate:has(.panel-studio:hover),
.gate:has(.panel-studio:focus-visible) {
  grid-template-columns: 1.16fr 0.84fr;
}

.gate:has(.panel-art:hover),
.gate:has(.panel-art:focus-visible) {
  grid-template-columns: 0.84fr 1.16fr;
}

.panel {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 62svh;
  overflow: hidden;
  outline: none;
}

.panel-media {
  position: absolute;
  inset: 0;
  -webkit-mask-image: radial-gradient(ellipse 70% 64% at 50% 46%, #000 0%, transparent 100%);
  mask-image: radial-gradient(ellipse 70% 64% at 50% 46%, #000 0%, transparent 100%);
}

.panel-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.18);
  filter: blur(22px);
  transition: filter 0.6s;
}

.panel:hover .panel-media img,
.panel:focus-visible .panel-media img {
  filter: blur(14px);
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.panel-studio {
  overflow: visible;
  background: transparent;
  color: #f4faf9;
}

.panel-studio .panel-shell {
  position: absolute;
  inset: 0;
  z-index: 0;
  -webkit-mask-image: radial-gradient(ellipse 78% 74% at 50% 50%, #000 8%, transparent 80%);
  mask-image: radial-gradient(ellipse 78% 74% at 50% 50%, #000 8%, transparent 80%);
}

.panel-studio .panel-shell i {
  display: block;
  position: absolute;
  inset: -36px;
  background: url("../images/hub/studio-photo.png?v=1") center 40% / cover no-repeat;
  filter: blur(32px);
}

.panel-studio .panel-media {
  -webkit-mask-image: radial-gradient(ellipse 64% 60% at 50% 48%, #000 0%, transparent 100%);
  mask-image: radial-gradient(ellipse 64% 60% at 50% 48%, #000 0%, transparent 100%);
}

.panel-studio::after {
  z-index: 1;
  background:
    linear-gradient(to right, var(--art-paper) 0%, transparent 12%, transparent 88%, var(--art-paper) 100%),
    linear-gradient(to bottom, var(--art-paper) 0%, transparent 10%, transparent 90%, var(--art-paper) 100%);
}

.panel-studio .panel-media img {
  object-position: center 40%;
  opacity: 0.94;
  filter: none;
  transform: scale(1.06);
}

.panel-studio:hover .panel-media img,
.panel-studio:focus-visible .panel-media img {
  filter: none;
}

.panel-art {
  overflow: visible;
  background: transparent;
  color: #f4faf9;
}

.panel-art .panel-shell {
  position: absolute;
  inset: 0;
  z-index: 0;
  -webkit-mask-image: radial-gradient(ellipse 78% 74% at 50% 50%, #000 8%, transparent 80%);
  mask-image: radial-gradient(ellipse 78% 74% at 50% 50%, #000 8%, transparent 80%);
}

.panel-art .panel-shell i {
  display: block;
  position: absolute;
  inset: -36px;
  background: url("../images/hub/art-photo.png?v=4") center center / cover no-repeat;
  filter: blur(32px);
}

.panel-art .panel-media {
  -webkit-mask-image: radial-gradient(ellipse 64% 60% at 50% 48%, #000 0%, transparent 100%);
  mask-image: radial-gradient(ellipse 64% 60% at 50% 48%, #000 0%, transparent 100%);
}

.panel-art::after {
  z-index: 1;
  background:
    linear-gradient(to right, var(--art-paper) 0%, transparent 12%, transparent 88%, var(--art-paper) 100%),
    linear-gradient(to bottom, var(--art-paper) 0%, transparent 10%, transparent 90%, var(--art-paper) 100%);
}

.panel-art .panel-media img {
  object-position: center center;
  opacity: 0.94;
  filter: none;
  transform: scale(1.06);
}

.panel-art:hover .panel-media img,
.panel-art:focus-visible .panel-media img {
  filter: none;
}

.panel-copy {
  position: relative;
  z-index: 2;
  padding: clamp(24px, 4vw, 48px);
  max-width: 28rem;
  transition: color 0.25s;
}

.panel:hover,
.panel:focus-visible {
  color: var(--art-ink);
}

.kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  opacity: 0.62;
}

.panel h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.15;
}

.zh {
  margin: 8px 0 0;
  font-size: 13px;
  letter-spacing: 0.18em;
  opacity: 0.62;
}

.desc {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  max-width: 22em;
  opacity: 0.82;
}

.go {
  display: inline-flex;
  margin-top: 28px;
  padding: 12px 20px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  transition: background 0.25s, color 0.25s;
}

.panel-studio .go,
.panel-art .go { border-color: rgba(244, 250, 249, 0.55); }

.panel:hover .go,
.panel:focus-visible .go {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}

.foot {
  position: relative;
  z-index: 4;
  padding: 16px clamp(20px, 4vw, 40px) 22px;
}

.foot p {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--art-muted);
}

@media (max-width: 820px) {
  .mast { padding-top: 16px; }
  .gate {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .gate:has(.panel-studio:hover),
  .gate:has(.panel-studio:focus-visible),
  .gate:has(.panel-art:hover),
  .gate:has(.panel-art:focus-visible) {
    grid-template-columns: 1fr;
  }
  .panel { min-height: 48svh; }
  .panel-copy { max-width: none; }
}