:root {
  --text: rgba(255,255,255,.94);
  --muted: rgba(255,255,255,.66);
  --faint: rgba(255,255,255,.18);
  --panel: rgba(13,16,22,.36);
  --panel-strong: rgba(10,12,18,.54);
  --stroke: rgba(255,255,255,.16);
  --transition-ms: 8800ms;
  --ease-cinema: cubic-bezier(.7, 0, .16, 1);
  --app-height: 100vh;
}

* { box-sizing: border-box; }
html, body {
  width: 100%;
  height: 100%;
  max-width: 100%;
}
html { scroll-behavior: auto; }
body {
  margin: 0;
  overflow: hidden;
  background: #090b0f;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

button {
  font: inherit;
}

.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #06070a;
  opacity: 1;
  visibility: visible;
  transition: opacity 860ms ease, visibility 0s linear 0s;
}

.intro-overlay.is-leaving {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 860ms ease, visibility 0s linear 860ms;
}

.intro-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(18px) saturate(1.08) brightness(.72);
  transform: scale(1.08);
}

.ferrofluid-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 52% 42%, rgba(126, 232, 255, .16), transparent 28%),
    radial-gradient(circle at 46% 68%, rgba(255, 255, 255, .08), transparent 34%),
    #05070b;
}

.ferrofluid-background::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 48%, transparent 28%, rgba(0,0,0,.32) 68%, rgba(0,0,0,.78) 100%),
    linear-gradient(180deg, rgba(0,0,0,.34), transparent 36%, rgba(0,0,0,.46));
}

.ferrofluid-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.ferrofluid-fallback {
  background:
    radial-gradient(circle at 42% 34%, rgba(255, 255, 255, .28), transparent 18%),
    radial-gradient(circle at 58% 66%, rgba(126, 232, 255, .2), transparent 24%),
    linear-gradient(145deg, #05070b, #07131a 52%, #05070b);
}

.intro-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 58%, rgba(255,255,255,.08), transparent 24%),
    radial-gradient(circle at 50% 48%, transparent 34%, rgba(0,0,0,.24) 72%, rgba(0,0,0,.74) 100%),
    linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,.12) 42%, rgba(0,0,0,.62));
}

.intro-enter-btn {
  position: relative;
  width: 178px;
  height: 66px;
  margin-top: 30vh;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 24px;
  color: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 22px;
  background:
    radial-gradient(circle at 30% 18%, rgba(255,255,255,.2), transparent 32%),
    linear-gradient(135deg, rgba(255,255,255,.12), rgba(126,232,255,.09) 42%, rgba(5,7,11,.58)),
    rgba(5,7,11,.46);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.22),
    inset 0 -18px 34px rgba(0,0,0,.18),
    0 0 34px rgba(126,232,255,.08),
    0 24px 80px rgba(0,0,0,.34);
  backdrop-filter: blur(24px) saturate(1.18);
  cursor: pointer;
  transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease, background 260ms ease;
}

.intro-enter-btn::before {
  content: none;
}

.intro-enter-btn:hover {
  transform: scale(1.045);
  border-color: rgba(255,255,255,.34);
  background:
    radial-gradient(circle at 30% 18%, rgba(255,255,255,.26), transparent 34%),
    linear-gradient(135deg, rgba(255,255,255,.16), rgba(126,232,255,.13) 42%, rgba(5,7,11,.64)),
    rgba(6,12,18,.54);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.28),
    inset 0 -18px 34px rgba(0,0,0,.2),
    0 0 28px rgba(126,232,255,.16),
    0 26px 82px rgba(0,0,0,.36);
}

.intro-enter-btn:active {
  transform: scale(.98);
}

.intro-enter-cn,
.intro-enter-en {
  position: relative;
  z-index: 1;
  display: block;
  line-height: 1;
  letter-spacing: 0;
  text-align: center;
  text-shadow: 0 1px 18px rgba(0,0,0,.32);
}

.intro-enter-cn {
  font-size: 18px;
  font-weight: 520;
}

.intro-enter-en {
  font-size: 11px;
  font-weight: 600;
}

.site-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  isolation: isolate;
}

.video-stage,
.bg-video,
.cinema-vignette,
.grain {
  position: fixed;
  inset: 0;
}

.video-stage {
  z-index: -3;
  overflow: hidden;
  background: #06070a;
}

.video-stage .ferrofluid-background {
  position: fixed;
  z-index: 0;
}

.bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none;
  z-index: 0;
  transform: scale(1.018);
  transition: opacity 680ms ease, transform 1600ms ease, visibility 0s linear 680ms;
  will-change: opacity, transform;
}

.bg-video.is-visible {
  opacity: 0 !important;
  visibility: hidden !important;
  z-index: 10;
  transform: scale(1);
  transition: opacity 680ms ease, transform 1600ms ease, visibility 0s linear 0s;
}

#transitionVideo {
  z-index: 20;
}

#transitionVideo.is-visible {
  z-index: 20;
}

#scene3LoopVideo.is-visible {
  z-index: 11;
}

.cinema-vignette {
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 48%, transparent 34%, rgba(0,0,0,.22) 72%, rgba(0,0,0,.72) 100%),
    linear-gradient(90deg, rgba(0,0,0,.68), transparent 24%, transparent 72%, rgba(0,0,0,.56)),
    linear-gradient(180deg, rgba(0,0,0,.42), transparent 30%, transparent 68%, rgba(0,0,0,.58));
}

.grain {
  z-index: 3;
  pointer-events: none;
  opacity: .12;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.75'/%3E%3C/svg%3E");
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(20px, 3vw, 42px) clamp(22px, 5vw, 72px);
  pointer-events: none;
}

.brand,
.topbar nav {
  pointer-events: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.brand-mark {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text);
  box-shadow: 0 0 24px rgba(255,255,255,.8);
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  background: rgba(0,0,0,.18);
  backdrop-filter: blur(18px);
}

.nav-dot {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,.38);
  cursor: pointer;
  transition: width .35s ease, background .35s ease;
}

.nav-dot.is-active {
  width: 28px;
  background: rgba(255,255,255,.92);
}

.mobile-scene-controls {
  display: none;
}

.content-track {
  position: relative;
  z-index: 5;
  display: flex;
  width: 600vw;
  height: 100vh;
  transform: translate3d(0,0,0);
  will-change: transform;
}

.content-track.is-moving {
  transition: transform var(--transition-ms) var(--ease-cinema);
}

body[data-phase="scene2"] .content-track,
body[data-phase="transition"] .content-track,
body[data-phase="scene2-intro"] .content-track,
body[data-phase="scene2-idle"] .content-track {
  transform: translate3d(-100vw,0,0);
}

body[data-phase="scene3-idle"] .content-track,
body[data-phase="transition-2-3"] .content-track,
body[data-phase="transition-deploy-3"] .content-track {
  transform: translate3d(-200vw,0,0);
}

body[data-phase="deploy"] .content-track,
body[data-phase="deploy-idle"] .content-track,
body[data-phase="transition-3-deploy"] .content-track,
body[data-phase="transition-scenarios-deploy"] .content-track {
  transform: translate3d(-300vw,0,0);
}

body[data-phase="scenarios"] .content-track,
body[data-phase="scenarios-idle"] .content-track,
body[data-phase="transition-deploy-scenarios"] .content-track,
body[data-phase="transition-4-scenarios"] .content-track {
  transform: translate3d(-400vw,0,0);
}

body[data-phase="scene4"] .content-track,
body[data-phase="scene4-idle"] .content-track,
body[data-phase="transition-scenarios-4"] .content-track {
  transform: translate3d(-500vw,0,0);
}

.page {
  position: relative;
  flex: 0 0 100vw;
  height: 100vh;
  padding: clamp(96px, 12vh, 150px) clamp(22px, 5vw, 72px) clamp(32px, 7vh, 72px);
}

.page-home {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: end;
  gap: clamp(28px, 5vw, 72px);
}

.hero-copy {
  max-width: 560px;
  padding-bottom: clamp(18px, 6vh, 64px);
}

.eyebrow,
.small-label {
  margin: 0 0 16px;
  color: rgba(255,255,255,.72);
  font-size: 12px;
  line-height: 1;
  letter-spacing: .22em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 560px;
  margin-bottom: 22px;
  font-size: clamp(30px, 4.5vw, 56px);
  line-height: .96;
  letter-spacing: -.075em;
  font-weight: 540;
}

.home-title-line {
  display: block;
}

#home-title {
  position: relative;
  top: calc(clamp(-160px, -21vh, -120px) + 42mm);
  margin-bottom: -4px;
}

.home-title-line-offset {
  margin-left: 0;
  margin-top: 16px;
}

h2 {
  margin-bottom: 16px;
  font-size: 28px;
  letter-spacing: -.04em;
  font-weight: 520;
}

h3 {
  margin-bottom: 12px;
  font-size: 20px;
  letter-spacing: -.03em;
  font-weight: 520;
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 34px;
}

.primary-btn {
  min-width: 172px;
  height: 48px;
  padding: 0 22px;
  color: #101318;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  cursor: pointer;
  box-shadow: 0 18px 48px rgba(0,0,0,.22);
  transition: transform .28s ease, background .28s ease;
}

.primary-btn:hover { transform: translateY(-2px); background: #fff; }

.hint {
  position: relative;
  color: rgba(255,255,255,.62);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.hint::after {
  content: "";
  display: inline-block;
  width: 42px;
  height: 1px;
  margin-left: 13px;
  vertical-align: middle;
  background: rgba(255,255,255,.42);
  animation: breathe 1.8s ease-in-out infinite;
}

@keyframes breathe {
  0%,100% { transform: scaleX(.55); opacity: .3; }
  50% { transform: scaleX(1); opacity: .9; }
}

.glass-panel {
  border: 1px solid var(--stroke);
  background: linear-gradient(135deg, var(--panel), rgba(255,255,255,.06));
  box-shadow: 0 24px 80px rgba(0,0,0,.22);
  backdrop-filter: blur(24px) saturate(1.18);
}

.profile-card {
  align-self: end;
  justify-self: end;
  width: min(100%, 360px);
  margin-bottom: clamp(16px, 5vh, 60px);
  padding: 28px;
  border-radius: 30px;
  transform: translateX(20px);
}

.profile-card p,
.tile p {
  color: rgba(255,255,255,.67);
  line-height: 1.38;
}

.profile-card dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 24px 0 0;
}

.profile-card dt {
  color: rgba(255,255,255,.46);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.profile-card dd {
  margin: 7px 0 0;
  color: rgba(255,255,255,.86);
  font-size: 14px;
}

.page-work {
  display: block;
}

.work-layout {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6vw;
}

/* ========== Section Header (左侧 1/3) ========== */
.section-header {
  width: 30%;
  max-width: 360px;
  z-index: 21;
}

.section-header .eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 16px 0;
  color: var(--text);
}

.section-header .section-subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

/* ========== Project Cards Grid (右侧 2/3) ========== */
.project-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 330px));
  gap: 26px;
  z-index: 20;
}

.project-card {
  position: relative;
  width: 100%;
  min-height: 286px;
  display: flex;
  flex-direction: column;
  border-radius: 22px;
  overflow: hidden;
  cursor: pointer;
  background:
    linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.03) 38%, rgba(7,12,18,.54)),
    rgba(8, 12, 18, .52);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 20px 60px rgba(0,0,0,.32), inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter: blur(18px) saturate(1.18);
  transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease, background 300ms ease;
  will-change: transform;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,.18), transparent 32%, rgba(98,238,221,.08));
  opacity: .42;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,.28);
  box-shadow:
    0 28px 78px rgba(0,0,0,.46),
    0 0 0 1px rgba(255,255,255,.08),
    0 0 36px rgba(92,231,214,.08);
}

.project-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  margin: 12px 12px 0;
  border-radius: 17px;
  overflow: hidden;
  background: rgba(255,255,255,.06);
}

.project-image-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.22));
}

.project-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1);
  transition: transform 360ms ease, filter 360ms ease;
}

.project-card:hover .project-card-image {
  transform: scale(1.04);
  filter: saturate(1.08) brightness(1.04);
}

.project-card-info {
  position: relative;
  z-index: 3;
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 18px 20px 20px;
}

.project-card-title {
  font-size: clamp(19px, 1.55vw, 23px);
  font-weight: 600;
  line-height: 1.18;
  margin: 0 0 9px;
  color: var(--text);
}

.project-card-description {
  font-size: 14px;
  line-height: 1.52;
  color: rgba(255,255,255,.66);
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.project-tags span {
  padding: 6px 9px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 999px;
  color: rgba(255,255,255,.7);
  background: rgba(255,255,255,.065);
  font-size: 11px;
  line-height: 1;
}

/* ========== Project Modal ========== */
.project-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 46px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 280ms ease;
}

.project-modal-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 52% 36%, rgba(70,210,196,.12), transparent 34%),
    rgba(0,0,0,.68);
  backdrop-filter: blur(16px) saturate(1.1);
}

.project-modal-card {
  position: relative;
  width: min(74vw, 1120px);
  height: min(78vh, 720px);
  max-height: 78vh;
  overflow: hidden;
  overflow-x: hidden;
  display: grid;
  grid-template-columns: minmax(280px, .86fr) minmax(360px, 1.14fr);
  background:
    linear-gradient(135deg, rgba(255,255,255,.12), rgba(255,255,255,.04) 42%, rgba(8,14,18,.68)),
    rgba(8,14,18,.62);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 30px;
  box-shadow: 0 44px 140px rgba(0,0,0,.64), inset 0 1px 0 rgba(255,255,255,.16);
  backdrop-filter: blur(26px) saturate(1.18);
  opacity: 0;
  transform: scale(.96) translateY(10px);
  transition: opacity 300ms ease, transform 300ms var(--ease-cinema), border-color 260ms ease;
  will-change: transform, opacity;
}

.project-modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.project-modal-overlay.is-open .project-modal-card {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.project-modal-overlay.is-closing {
  opacity: 0;
}

.project-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 10;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,.6);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  color: rgba(255,255,255,.92);
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, transform 200ms ease;
  backdrop-filter: blur(12px);
}

.project-modal-close:hover {
  background: rgba(0,0,0,.8);
  border-color: rgba(255,255,255,.32);
  transform: scale(1.1);
}

.project-modal-close svg {
  width: 20px;
  height: 20px;
}

.project-modal-media {
  position: relative;
  min-height: 0;
  height: 100%;
  background:
    radial-gradient(circle at 28% 20%, rgba(117,220,255,.18), transparent 26%),
    linear-gradient(160deg, rgba(33,68,126,.34), rgba(12,17,24,.58));
  overflow: hidden;
}

.project-modal-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 54%, rgba(0,0,0,.3));
}

.project-modal-media img,
.project-modal-media video {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  display: block;
}

.project-modal-content {
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 3vw, 34px) clamp(26px, 3.2vw, 40px) clamp(22px, 2.6vw, 32px);
}

.project-modal-kicker {
  margin: 0 0 8px;
  color: rgba(255,255,255,.62);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.project-modal-title {
  max-width: calc(100% - 58px);
  font-size: clamp(28px, 2.8vw, 40px);
  font-weight: 600;
  line-height: 1.02;
  margin: 0 0 9px;
  color: var(--text);
  white-space: nowrap;
}

.project-modal-summary {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin: 0 0 14px;
  color: rgba(255,255,255,.76);
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.42;
}

.project-modal-grid {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(118px, 1fr));
  gap: 10px;
  min-height: 0;
}

.project-detail-section {
  min-height: 118px;
  padding: 12px 13px 13px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 16px;
  background: rgba(255,255,255,.055);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}

.project-detail-section h4 {
  margin: 0 0 8px;
  color: rgba(255,255,255,.84);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.project-detail-section p,
.project-detail-section li {
  color: rgba(255,255,255,.68);
  font-size: 12.5px;
  line-height: 1.38;
}

.project-detail-section p,
.project-detail-section ul {
  margin: 0;
}

.project-detail-section p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.project-detail-section ul {
  padding-left: 15px;
}

.project-detail-section li {
  margin-bottom: 2px;
}

.project-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tech-list span {
  padding: 5px 8px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  color: rgba(255,255,255,.72);
  background: rgba(255,255,255,.07);
  font-size: 10.5px;
}

.project-modal-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  padding-top: 12px;
}

.project-status {
  color: rgba(156,255,235,.84);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.project-modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.project-modal-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,.96);
  background: linear-gradient(135deg, rgba(45,112,78,.64), rgba(13,47,36,.56));
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 12px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 200ms ease, background 200ms ease, box-shadow 200ms ease;
  box-shadow: 0 4px 12px rgba(0,0,0,.3);
}

.project-modal-cta-secondary {
  background: rgba(255,255,255,.08);
}

.project-modal-cta:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(54,128,90,.72), rgba(15,55,42,.64));
  box-shadow: 0 8px 24px rgba(45,112,78,.4);
}

.project-modal-cta.is-disabled,
.project-modal-cta.is-disabled:hover {
  opacity: .42;
  cursor: not-allowed;
  transform: none;
  background: rgba(255,255,255,.06);
  box-shadow: none;
  pointer-events: auto;
}

body.project-detail-open .content-track {
  pointer-events: none;
}

/* ============================================
   Scene 4: Contact Page
   ============================================ */

.page-contact {
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.contact-scene-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(110deg, rgba(3,7,12,.92), rgba(6,24,28,.7) 46%, rgba(4,8,13,.9)),
    radial-gradient(circle at 72% 28%, rgba(96,238,217,.18), transparent 34%),
    radial-gradient(circle at 24% 76%, rgba(255,255,255,.08), transparent 32%);
  opacity: .94;
}

.contact-layout {
  position: relative;
  z-index: 6;
  display: grid;
  grid-template-columns: minmax(320px, .92fr) minmax(360px, 1fr);
  gap: clamp(28px, 4.2vw, 72px);
  width: min(88vw, 1280px);
  margin: 0 auto;
  align-items: center;
}

.contact-intro h1 {
  margin: 14px 0 18px;
  font-size: clamp(42px, 5.8vw, 86px);
  line-height: .98;
  letter-spacing: 0;
}

.contact-title-line {
  display: block;
}

.contact-lead {
  max-width: 560px;
  margin: 0 0 clamp(24px, 4vh, 42px);
  color: rgba(255,255,255,.72);
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.72;
}

.contact-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-info-card,
.social-panel,
.feedback-panel {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
}

.contact-info-card {
  min-height: 136px;
  padding: 22px 24px;
  transition: transform 280ms ease, border-color 280ms ease, box-shadow 280ms ease;
}

.contact-info-card-email {
  grid-column: 1 / -1;
}

.contact-info-card::before,
.social-panel::before,
.feedback-panel::before,
.social-chip::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255,255,255,.2), transparent 34%, rgba(92,231,214,.1));
  opacity: .55;
}

.contact-info-card:hover,
.social-panel:hover,
.feedback-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.34);
  box-shadow: 0 26px 80px rgba(55,231,214,.12), 0 18px 56px rgba(0,0,0,.3);
}

.contact-info-card strong {
  position: relative;
  display: block;
  margin: 12px 0 8px;
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 600;
}

.contact-info-card-email strong {
  font-size: clamp(26px, 2.4vw, 34px);
  white-space: nowrap;
}

.contact-info-card p {
  position: relative;
  margin: 0;
  color: rgba(255,255,255,.62);
  line-height: 1.48;
}

.contact-side {
  display: grid;
  gap: 20px;
}

.social-panel,
.feedback-panel {
  padding: clamp(22px, 2.4vw, 32px);
}

.panel-heading {
  position: relative;
  margin-bottom: 20px;
}

.panel-heading h2 {
  margin: 6px 0 0;
  font-size: clamp(24px, 2vw, 34px);
  line-height: 1.15;
}

.social-link-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.social-chip {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  color: rgba(255,255,255,.86);
  text-decoration: none;
  background: rgba(255,255,255,.06);
  overflow: hidden;
  transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease, background 260ms ease;
}

.social-chip:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.42);
  background: rgba(255,255,255,.12);
  box-shadow: 0 0 28px rgba(98,238,221,.16);
}

.feedback-panel {
  display: grid;
  gap: 14px;
}

.feedback-panel label {
  position: relative;
  display: grid;
  gap: 8px;
  color: rgba(255,255,255,.68);
}

.feedback-panel input,
.feedback-panel textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  padding: 14px 16px;
  color: rgba(255,255,255,.92);
  background: rgba(255,255,255,.07);
  outline: none;
  resize: vertical;
  transition: border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.feedback-panel input:focus,
.feedback-panel textarea:focus {
  border-color: rgba(126,244,229,.55);
  background: rgba(255,255,255,.1);
  box-shadow: 0 0 0 4px rgba(126,244,229,.08);
}

.feedback-submit {
  justify-self: start;
  min-width: 158px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  padding: 13px 24px;
  color: rgba(255,255,255,.94);
  background: rgba(255,255,255,.1);
  box-shadow: 0 18px 48px rgba(0,0,0,.24);
  transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease, background 240ms ease;
}

.feedback-submit:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.46);
  background: rgba(255,255,255,.16);
  box-shadow: 0 0 34px rgba(98,238,221,.16), 0 18px 48px rgba(0,0,0,.26);
}

.feedback-submit:disabled {
  cursor: wait;
  opacity: .68;
  transform: none;
  box-shadow: 0 14px 36px rgba(0,0,0,.2);
}

.feedback-toast {
  min-height: 22px;
  margin: 0;
  color: rgba(159,255,236,.86);
}

.contact-reveal {
  opacity: 0;
  transform: translateY(30px);
}

body[data-phase="scene4"] .contact-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 720ms ease var(--reveal-delay), transform 720ms ease var(--reveal-delay);
}

body[data-phase="scene4-idle"] .contact-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 720ms ease var(--reveal-delay), transform 720ms ease var(--reveal-delay);
}

@media (max-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 22px;
    max-height: calc(100vh - 124px);
    overflow-y: auto;
    padding: 10px 4px 24px;
  }

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

@media (max-width: 768px) {
  html,
  body,
  .site-shell {
    width: 100%;
    height: var(--app-height);
    overflow: hidden;
    overscroll-behavior: none;
  }

  html {
    position: fixed;
    inset: 0;
  }

  body {
    position: fixed;
    inset: 0;
    touch-action: none;
  }

  .site-shell {
    position: fixed;
    inset: 0;
    touch-action: none;
  }

  button,
  a,
  input,
  textarea,
  select,
  label,
  .project-card,
  .nav-dot,
  .mobile-scene-controls,
  .project-modal-card {
    touch-action: manipulation;
  }

  .video-stage,
  .bg-video {
    position: fixed;
    inset: 0;
    width: 100%;
    height: var(--app-height);
  }

  .bg-video {
    object-fit: cover;
    object-position: center center;
  }

  .content-track {
    height: var(--app-height);
    overscroll-behavior: none;
    touch-action: none;
  }

  .page {
    height: var(--app-height);
    overflow: hidden;
    overscroll-behavior: none;
  }

  .mobile-scene-controls {
    position: fixed;
    right: 14px;
    bottom: calc(20px + env(safe-area-inset-bottom));
    z-index: 60;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 999px;
    background: rgba(6,12,14,.34);
    backdrop-filter: blur(18px) saturate(1.12);
    box-shadow: 0 14px 42px rgba(0,0,0,.24), inset 0 1px 0 rgba(255,255,255,.12);
  }

  .mobile-scene-btn {
    min-width: 48px;
    height: 34px;
    padding: 0 12px;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 999px;
    color: rgba(255,255,255,.86);
    background: rgba(255,255,255,.08);
    font-size: 11px;
    font-weight: 650;
    letter-spacing: .08em;
    text-transform: uppercase;
  }

  .page-contact {
    display: block;
    align-items: flex-start;
    padding: 92px 18px 92px;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .contact-layout {
    display: grid;
    width: min(100%, 520px);
    max-height: none;
    overflow: visible;
    gap: 18px;
    padding: 0 0 24px;
  }

  .contact-intro h1 {
    margin: 8px 0 12px;
    font-size: clamp(42px, 13vw, 62px);
    line-height: .96;
  }

  .contact-lead {
    margin-bottom: 20px;
    font-size: 15px;
    line-height: 1.62;
  }

  .contact-card-grid,
  .social-link-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .contact-info-card {
    min-height: 112px;
    padding: 20px 22px;
    border-radius: 24px;
  }

  .contact-info-card-email {
    grid-column: auto;
  }

  .contact-info-card strong,
  .contact-info-card-email strong {
    font-size: clamp(23px, 7vw, 29px);
  }

  .contact-info-card-email strong {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .feedback-panel {
    padding: 22px;
    border-radius: 24px;
  }

  .feedback-submit {
    width: 100%;
  }
}

.progress-ui {
  position: fixed;
  left: clamp(22px, 5vw, 72px);
  right: clamp(22px, 5vw, 72px);
  bottom: clamp(20px, 4vh, 44px);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 18px;
  color: rgba(255,255,255,.66);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  pointer-events: none;
}

.progress-line {
  position: relative;
  flex: 1;
  height: 1px;
  overflow: hidden;
  background: rgba(255,255,255,.18);
}

.progress-line i {
  display: block;
  width: 0%;
  height: 100%;
  background: rgba(255,255,255,.86);
  transform-origin: left center;
  transition: width 120ms linear;
}

@media (max-width: 920px) {
  .page-home {
    grid-template-columns: 1fr;
    align-items: end;
  }
  .profile-card {
    max-width: 460px;
    margin-bottom: 0;
    justify-self: start;
    transform: none;
  }
  .section-copy,
  .content-grid {
    right: auto;
    left: 50%;
    width: min(88vw, 760px);
    transform: translateX(-50%);
  }
  .content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }
  .tile,
  .tile-large {
    height: 150px;
    min-height: 150px;
  }
}

@media (max-width: 768px) {
  #home-title {
    top: clamp(-44px, -6vh, -32px);
  }

  .page-work {
    overflow: hidden;
  }

  .work-layout {
    position: absolute;
    inset: 0;
    height: 100%;
    display: grid;
    grid-template-columns: minmax(78px, 24vw) minmax(0, 1fr);
    align-items: center;
    gap: 14px;
    padding: 92px 16px 82px;
  }

  .section-header {
    width: auto;
    max-width: 96px;
    align-self: center;
  }

  .section-header .eyebrow {
    margin-bottom: 12px;
    font-size: 10px;
  }

  .section-header h2 {
    font-size: clamp(34px, 10vw, 48px);
    line-height: 1.04;
    margin-bottom: 14px;
  }

  .section-header .section-subtitle {
    font-size: 16px;
    line-height: 1.55;
  }

  .project-cards-grid {
    width: 100%;
    max-height: calc(100dvh - 174px);
    grid-template-columns: 1fr;
    gap: 14px;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 0 8px;
    -webkit-overflow-scrolling: touch;
  }

  .project-card {
    width: 100%;
    min-height: 0;
    border-radius: 18px;
  }

  .project-image-wrap {
    margin: 10px 10px 0;
    border-radius: 14px;
    aspect-ratio: 16 / 9;
  }

  .project-card-info {
    padding: 14px 15px 16px;
  }

  .project-card-title {
    font-size: 16px;
  }

  .project-card-description {
    font-size: 12px;
    line-height: 1.42;
    margin-bottom: 12px;
    -webkit-line-clamp: 2;
  }

  .project-tags {
    gap: 6px;
  }

  .project-tags span {
    padding: 5px 7px;
    font-size: 10px;
  }

  .project-modal-overlay {
    padding: 14px;
    align-items: center;
  }

  .project-modal-card {
    width: calc(100vw - 28px);
    height: auto;
    max-height: calc(100dvh - 88px);
    overflow-y: auto;
    grid-template-columns: 1fr;
    border-radius: 24px;
  }

  .project-modal-media {
    position: relative;
    height: auto;
    min-height: 220px;
  }

  .project-modal-media img,
  .project-modal-media video {
    min-height: 220px;
    height: 220px;
  }

  .project-modal-content {
    display: block;
    padding: 24px 20px 26px;
  }

  .project-modal-title {
    max-width: calc(100% - 44px);
    font-size: clamp(28px, 8vw, 40px);
    white-space: normal;
  }

  .project-modal-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  .project-modal-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .project-modal-cta {
    flex: 1 1 auto;
  }

  .section-copy,
  .content-grid {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    width: min(88vw, 420px);
    transform: none;
  }

  .section-copy {
    margin: 96px auto 16px;
  }

  .content-grid {
    grid-template-columns: 1fr;
    row-gap: 18px;
    margin: 0 auto;
  }

  .tile,
  .tile-large {
    height: auto;
    min-height: 132px;
  }
}

@media (max-width: 640px) {
  #home-title {
    top: clamp(-36px, -5vh, -24px);
  }
  .intro-enter-btn {
    width: 164px;
    height: 62px;
    margin-top: 28vh;
    border-radius: 20px;
  }
  .intro-enter-cn {
    font-size: 17px;
  }
  .intro-enter-en {
    font-size: 10px;
  }
  .topbar {
    padding: 20px;
  }
  .brand span:last-child {
    display: none;
  }
  .page {
    padding: 90px 20px 72px;
  }
  h1 {
    font-size: clamp(30px, 11vw, 52px);
  }
  .profile-card,
  .tile {
    padding: 16px 22px;
    border-radius: 24px;
  }
  .page-home {
    gap: 18px;
  }
  .progress-ui {
    left: 20px;
    right: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro-overlay,
  .intro-enter-btn {
    transition: none !important;
  }
  .content-track.is-moving,
  .bg-video,
  .hint::after {
    transition: none !important;
    animation: none !important;
  }
}

/* ============================================
   Scene 3: Gallery Page
   ============================================ */

.page-gallery {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.gallery-3d-stage {
  position: absolute;
  inset: 0;
  display: flex;
  gap: 20px;
  justify-content: flex-end;
  align-items: center;
  padding-right: 5vw;
  overflow: hidden;
  perspective: 1000px;
}

.photo-column {
  position: relative;
  width: 320px;
  height: 80vh;
  overflow: hidden;
  transform-style: preserve-3d;
}

.photo-column-left {
  /* 左列特定样式（如需要） */
}

.photo-column-right {
  /* 右列特定样式（如需要） */
}

.photo-track-strip {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  transform-style: preserve-3d;
  will-change: transform;

  /* GPU 加速 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.photo-card {
  position: relative;
  width: 300px;
  height: 220px;
  margin-bottom: 30px;

  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.15s ease-out;

  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);

  cursor: pointer;

  /* GPU 加速 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
}

.photo-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(255, 255, 255, 0.3) 0%,
    rgba(255, 255, 255, 0) 50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.photo-card.is-hovered::before {
  opacity: 1;
}

.photo-card .shine-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 255, 255, 0.4) 0%,
    rgba(255, 255, 255, 0) 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 3;
}

.photo-card.is-hovered .shine-overlay {
  opacity: 1;
}

.photo-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  transition: transform 0.15s ease-out;

  /* GPU 加速和图片优化 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

.photo-info-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.1s ease-out;
  pointer-events: none;
  z-index: 4;
}

.photo-card.is-hovered .photo-info-overlay {
  opacity: 1;
}

.photo-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.25rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.photo-date {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.photo-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;

  display: flex;
  align-items: center;
  justify-content: center;

  background: rgba(9, 11, 15, 0.95);
  backdrop-filter: blur(24px);

  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s cubic-bezier(0.7, 0, 0.16, 1);
}

.photo-detail-overlay.is-active {
  opacity: 1 !important;
  pointer-events: all;
}

.detail-content {
  position: relative;
  display: flex;
  gap: 3rem;
  max-width: 90vw;
  max-height: 90vh;
  margin: auto;

  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.7, 0, 0.16, 1);
}

.photo-detail-overlay.is-active .detail-content {
  transform: scale(1);
}

.detail-image {
  width: auto;
  max-width: 60vw;
  max-height: 80vh;
  height: auto;

  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.detail-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
  max-width: 320px;

  padding: 2rem;
  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.detail-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.detail-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

.detail-date {
  font-size: 0.85rem;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.detail-close {
  position: absolute;
  top: 2rem;
  right: 2rem;

  width: 48px;
  height: 48px;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 50%;

  color: var(--muted);
  cursor: pointer;

  transition: all 0.2s ease;
}

.detail-close:hover {
  background: var(--panel-strong);
  color: var(--text);
  transform: scale(1.1);
}

/* ============================================
   Carousel Preview Styles
   ============================================ */

.carousel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;

  display: flex;
  align-items: center;
  justify-content: center;

  background: rgba(0, 0, 0, 0.95);
  /* 移除 backdrop-filter 以提升性能 */

  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease-out;

  /* GPU 加速 */
  transform: translateZ(0);
  backface-visibility: hidden;
}

.carousel-overlay.is-active {
  opacity: 1;
  pointer-events: all;
}

.carousel-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;

  /* GPU 加速 */
  transform: translateZ(0);
}

.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
  max-width: 1400px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  perspective: 2000px;

  /* GPU 加速 */
  transform: translateZ(0);
}

.carousel-slide {
  position: absolute;
  width: 75%;
  max-width: 900px;
  height: 85%;

  display: flex;
  align-items: center;
  justify-content: center;

  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.4s ease-out;
  transform-style: preserve-3d;
  will-change: transform, opacity;

  /* GPU 加速 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.carousel-slide.is-hidden {
  transition: none;
  pointer-events: none;
}

.carousel-slide-content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;

  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  /* 移除 backdrop-filter 以提升性能 */
  overflow: hidden;

  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.9),
    0 10px 30px rgba(0, 0, 0, 0.5);

  /* GPU 加速 */
  transform: translateZ(0);
  backface-visibility: hidden;
}

.carousel-slide.is-active .carousel-slide-content {
  box-shadow:
    0 40px 100px rgba(0, 0, 0, 1),
    0 20px 50px rgba(255, 255, 255, 0.05);
}

.carousel-image-wrapper {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 2rem 0 2rem;
  overflow: hidden;
}

.carousel-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
  user-select: none;
  pointer-events: none;

  /* GPU 加速和图片优化 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  image-rendering: -webkit-optimize-contrast;
}

.carousel-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0 2rem 2rem 2rem;
  width: 100%;
  text-align: center;
}

.carousel-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
  line-height: 1.3;
}

.carousel-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

.carousel-date {
  font-size: 0.9rem;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

/* Navigation Buttons */
.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);

  width: 56px;
  height: 56px;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 50%;

  color: var(--muted);
  cursor: pointer;
  z-index: 100;

  transition: all 0.3s ease;
}

.carousel-nav:hover:not(:disabled) {
  background: var(--panel-strong);
  color: var(--text);
  transform: translateY(-50%) scale(1.1);
  border-color: var(--text);
}

.carousel-nav:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.carousel-nav-prev {
  left: 2rem;
}

.carousel-nav-next {
  right: 2rem;
}

/* Close Button */
.carousel-close {
  position: absolute;
  top: 2rem;
  right: 2rem;

  width: 48px;
  height: 48px;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 50%;

  color: var(--muted);
  cursor: pointer;
  z-index: 100;

  transition: all 0.2s ease;
}

.carousel-close:hover {
  background: var(--panel-strong);
  color: var(--text);
  transform: scale(1.1);
}

/* Counter */
.carousel-counter {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);

  padding: 0.75rem 1.5rem;
  background: var(--panel);
  border: 1px solid var(--stroke);
  border-radius: 24px;
  backdrop-filter: blur(12px);

  font-size: 0.95rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  z-index: 100;
}

.carousel-current {
  color: var(--text);
  font-weight: 600;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .carousel-container {
    padding: 3rem 1rem;
  }

  .carousel-slide {
    width: 90%;
    height: 80%;
  }

  .carousel-slide-content {
    gap: 1rem;
    border-radius: 12px;
  }

  .carousel-image-wrapper {
    padding: 1.5rem 1.5rem 0 1.5rem;
  }

  .carousel-info {
    padding: 0 1.5rem 1.5rem 1.5rem;
  }

  .carousel-title {
    font-size: 1.25rem;
  }

  .carousel-description {
    font-size: 0.9rem;
  }

  .carousel-nav {
    width: 44px;
    height: 44px;
  }

  .carousel-nav-prev {
    left: 1rem;
  }

  .carousel-nav-next {
    right: 1rem;
  }

  .carousel-close {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
  }

  .carousel-counter {
    bottom: 1rem;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
}

/* Mobile responsive */
@media (max-width: 768px) {
  .gallery-3d-stage {
    padding-right: 2vw;
    gap: 15px;
  }

  .photo-column {
    width: 240px;
    height: 70vh;
  }

  .photo-card {
    width: 220px;
    height: 160px;
    border-radius: 8px;
  }

  .detail-content {
    flex-direction: column;
    gap: 1.5rem;
    padding: 1rem;
  }

  .detail-image {
    max-width: 90vw;
    max-height: 50vh;
  }

  .detail-info {
    max-width: 100%;
  }

  .detail-close {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .gallery-3d-stage {
    padding-right: 1vw;
    padding-left: 1vw;
    gap: 10px;
    justify-content: center;
  }

  .photo-column {
    width: 160px;
    height: 60vh;
  }

  .photo-card {
    width: 150px;
    height: 110px;
    border-radius: 6px;
    margin-bottom: 20px;
  }

  /* 禁用 3D 效果以提升性能 */
  .photo-card.is-hovered::before {
    opacity: 0.5;
  }

  .photo-card .shine-overlay {
    display: none;
  }

  .detail-title {
    font-size: 1.2rem;
  }

  .detail-description {
    font-size: 0.875rem;
  }
}

/* AI Agent company adaptation */
.home-lead {
  max-width: 760px;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.24rem);
  line-height: 1.75;
}

.company-card dl {
  grid-template-columns: 1fr;
}

.tool-library-layout {
  grid-template-columns: minmax(320px, .82fr) minmax(0, 1.18fr);
  gap: clamp(1rem, 2vw, 2rem);
  align-items: stretch;
  padding: 96px 5vw 56px;
}

.tool-library-layout .section-header {
  align-self: stretch;
  max-height: calc(100vh - 152px);
  overflow-y: auto;
  padding: 4px 10px 20px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(126, 232, 255, .5) rgba(255,255,255,.08);
}

.tool-library-layout .project-cards-grid {
  align-self: stretch;
  max-height: calc(100vh - 152px);
  overflow-y: auto;
  grid-template-columns: repeat(2, minmax(220px, 285px));
  gap: 16px;
  padding: 4px 8px 18px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(126, 232, 255, .5) rgba(255,255,255,.08);
}

.tool-filter-panel {
  display: grid;
  gap: .75rem;
  margin-top: 1.25rem;
}

.tool-filter-panel label {
  display: grid;
  gap: .45rem;
  color: var(--muted);
  font-size: .78rem;
}

.tool-filter-panel input,
.tool-filter-panel select {
  width: 100%;
  min-height: 44px;
  padding: 0 .85rem;
  color: var(--text);
  background: rgba(3, 6, 11, .58);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  outline: none;
}

.tool-filter-panel input:focus,
.tool-filter-panel select:focus {
  border-color: rgba(126, 232, 255, .62);
}

.tool-trial-dock {
  margin-top: 1.2rem;
  padding: 1rem;
}

.tool-trial-dock h3 {
  margin: .2rem 0 .5rem;
  font-size: 1.05rem;
}

.tool-trial-dock.is-updated {
  border-color: rgba(126, 232, 255, .72);
  box-shadow:
    0 0 0 1px rgba(126, 232, 255, .22),
    0 18px 60px rgba(126, 232, 255, .14),
    0 24px 80px rgba(0,0,0,.22);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.trial-dock-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  margin-top: .8rem;
  padding: 0 .9rem;
  color: #071016;
  text-decoration: none;
  background: rgba(126, 232, 255, .9);
  border: 1px solid rgba(126, 232, 255, .9);
  border-radius: 999px;
}

.tool-card {
  min-height: 252px;
  border-radius: 18px;
}

.tool-visual-wrap {
  display: grid;
  place-items: stretch;
  margin: 9px 9px 0;
  padding: .5rem;
  aspect-ratio: 16 / 8;
  border-radius: 14px;
}

.tool-visual,
.tool-modal-visual {
  display: grid;
  align-content: space-between;
  min-height: 100%;
  padding: .75rem;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(126, 232, 255, .14) 1px, transparent 1px),
    linear-gradient(rgba(126, 232, 255, .12) 1px, transparent 1px),
    rgba(4, 8, 14, .74);
  background-size: 28px 28px;
  border: 1px solid rgba(126, 232, 255, .24);
  border-radius: 14px;
}

.tool-visual span,
.tool-modal-visual span {
  width: fit-content;
  padding: .32rem .5rem;
  color: #071016;
  background: rgba(126, 232, 255, .9);
  border-radius: 999px;
  font-size: .66rem;
  letter-spacing: 0;
}

.tool-visual strong,
.tool-modal-visual strong {
  display: block;
  max-width: 16ch;
  color: rgba(255,255,255,.94);
  font-size: 1.28rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.tool-visual i,
.tool-modal-visual i {
  color: rgba(255,255,255,.58);
  font-style: normal;
  font-size: .7rem;
}

.tool-modal-visual {
  width: 100%;
  min-height: 100%;
  border-radius: 0;
}

.tool-card .project-card-info {
  gap: .48rem;
  padding: 12px 14px 14px;
}

.tool-card .project-card-title {
  margin-bottom: 0;
  font-size: 1rem;
  line-height: 1.18;
}

.tool-card .project-card-description {
  display: -webkit-box;
  margin-bottom: .1rem;
  overflow: hidden;
  font-size: .78rem;
  line-height: 1.42;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.tool-card .project-tags {
  gap: .36rem;
}

.tool-card .project-tags span {
  padding: .28rem .46rem;
  font-size: .66rem;
}

.tool-card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  color: rgba(255,255,255,.58);
  font-size: .66rem;
}

.tool-card-action {
  display: inline-flex;
  width: fit-content;
  margin-top: auto;
  padding: .38rem .6rem;
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  font-size: .7rem;
}

.tool-toolkit {
  border-color: rgba(126, 232, 255, .5);
}

.tool-toolkit .tool-card-action,
.tool-toolkit .project-tags span:first-child {
  color: #061018;
  background: rgba(126, 232, 255, .9);
  border-color: rgba(126, 232, 255, .9);
}

.tool-card-empty {
  display: grid;
  place-items: center;
}

.solution-heading {
  position: absolute;
  left: clamp(1rem, 5vw, 5rem);
  top: clamp(5rem, 12vh, 8rem);
  z-index: 4;
  width: min(430px, calc(100vw - 2rem));
  padding: 1.2rem;
}

.solution-heading h2 {
  margin: .35rem 0 .75rem;
  font-size: clamp(1.8rem, 4vw, 3.6rem);
  line-height: .95;
}

.solution-card .photo-image {
  filter: saturate(.5) brightness(.62);
}

.solution-card .photo-info-overlay {
  background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.82) 100%);
}

.solution-text-card {
  background:
    linear-gradient(90deg, rgba(126, 232, 255, .14) 1px, transparent 1px),
    linear-gradient(rgba(126, 232, 255, .12) 1px, transparent 1px),
    linear-gradient(135deg, rgba(126, 232, 255, .16), rgba(255,255,255,.05) 42%, rgba(4,8,14,.92));
  background-size: 28px 28px, 28px 28px, auto;
  border: 1px solid rgba(126, 232, 255, .24);
}

.solution-card-visual {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: space-between;
  gap: .75rem;
  padding: 1rem;
  transition: transform 0.15s ease-out;
  pointer-events: none;
}

.solution-card-visual span,
.solution-carousel-visual span {
  width: fit-content;
  padding: .3rem .52rem;
  color: #061018;
  background: rgba(126, 232, 255, .92);
  border-radius: 999px;
  font-size: .72rem;
  letter-spacing: .16em;
}

.solution-card-visual strong,
.solution-carousel-visual strong {
  color: var(--text);
  font-size: clamp(1.15rem, 2.2vw, 1.65rem);
  line-height: 1.05;
  letter-spacing: -.04em;
}

.solution-card-visual p {
  margin: 0;
  color: rgba(255,255,255,.66);
  font-size: .78rem;
  line-height: 1.55;
}

.solution-text-card .photo-info-overlay {
  display: none;
}

.solution-carousel-visual {
  flex-direction: column;
  gap: 1rem;
  min-height: 260px;
  padding: 2rem;
  background:
    linear-gradient(90deg, rgba(126, 232, 255, .13) 1px, transparent 1px),
    linear-gradient(rgba(126, 232, 255, .11) 1px, transparent 1px),
    rgba(5, 9, 15, .8);
  background-size: 34px 34px;
  border-bottom: 1px solid var(--stroke);
}

.solution-carousel-visual i {
  color: var(--muted);
  font-style: normal;
}

.carousel-info .carousel-date::before {
  content: "类型：";
}

.carousel-info .carousel-date::before {
  content: "类型：";
}

@media (max-width: 1024px) {
  .tool-library-layout {
    grid-template-columns: 1fr;
    overflow-y: auto;
    padding-top: 12vh;
    padding-bottom: 8vh;
  }

  .tool-library-layout .section-header {
    max-height: none;
    overflow-y: visible;
    padding: 0;
  }

  .tool-filter-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .tool-trial-dock {
    max-width: 720px;
  }
}

@media (max-width: 768px) {
  .home-lead {
    font-size: .96rem;
  }

  .hero-copy .eyebrow {
    margin-bottom: 28px;
  }

  #home-title {
    top: 0 !important;
    margin-bottom: 18px;
  }

  .home-title-line-offset {
    margin-top: 8px;
  }

  .tool-filter-panel {
    grid-template-columns: 1fr;
  }

  .tool-card {
    min-height: 280px;
  }

  .tool-card-topline {
    align-items: flex-start;
    flex-direction: column;
  }

  .solution-heading {
    top: 5rem;
  }
}

/* v1.0 commercial lead and configurator layer */
.lang-toggle-btn {
  min-width: 38px;
  height: 28px;
  padding: 0 10px;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  cursor: pointer;
}

.lang-toggle-btn:hover {
  color: #061018;
  background: rgba(255,255,255,.9);
}

.configurator-open-btn {
  width: fit-content;
  min-height: 42px;
  margin-top: 1rem;
  padding: 0 .95rem;
  color: #071016;
  border: 1px solid rgba(126,232,255,.86);
  border-radius: 999px;
  background: rgba(126,232,255,.9);
  cursor: pointer;
}

.configurator-panel {
  position: absolute;
  inset: 7vh 5vw 5vh auto;
  z-index: 40;
  width: min(760px, 58vw);
  max-height: 88vh;
  display: grid;
  gap: 1rem;
  padding: clamp(18px, 2.4vw, 30px);
  overflow-y: auto;
  border-radius: 24px;
}

.configurator-panel[hidden] {
  display: none;
}

.configurator-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
}

.configurator-head h2 {
  margin: .2rem 0 .55rem;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.05;
}

.configurator-head p,
.config-step p,
.config-summary p {
  color: rgba(255,255,255,.66);
  line-height: 1.6;
}

.configurator-close {
  position: relative;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: transparent;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  background: rgba(0,0,0,.38);
  cursor: pointer;
  overflow: hidden;
}

.configurator-close::before,
.configurator-close::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 2px;
  background: rgba(255,255,255,.86);
}

.configurator-close::before {
  transform: rotate(45deg);
}

.configurator-close::after {
  transform: rotate(-45deg);
}

.configurator-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .9rem;
}

.config-step {
  min-width: 0;
  display: grid;
  gap: .7rem;
}

.config-step h3 {
  margin: 0;
  font-size: 1rem;
}

.config-option-grid {
  display: grid;
  gap: .55rem;
}

.config-option {
  min-height: 42px;
  display: grid;
  gap: .25rem;
  align-content: center;
  justify-items: start;
  padding: .68rem .72rem;
  color: rgba(255,255,255,.82);
  text-align: left;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 14px;
  background: rgba(255,255,255,.06);
  cursor: pointer;
}

.config-option small {
  color: rgba(255,255,255,.5);
  font-size: .72rem;
}

.config-option:hover,
.config-option.is-selected {
  border-color: rgba(126,232,255,.66);
  background: rgba(126,232,255,.13);
}

.config-option.is-selected span {
  color: rgba(159,255,236,.96);
}

.config-option.is-recommended:not(.is-selected) {
  border-color: rgba(255,255,255,.26);
}

.configurator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.configurator-reset {
  min-height: 48px;
  padding: 0 1rem;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: rgba(255,255,255,.07);
  cursor: pointer;
}

.config-summary {
  display: grid;
  gap: .85rem;
  min-height: 80px;
  padding: 1rem;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 18px;
  background: rgba(0,0,0,.24);
}

.config-summary h3 {
  margin: 0;
}

.config-summary dl {
  display: grid;
  gap: .6rem;
  margin: 0;
}

.config-summary dl div {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: .8rem;
}

.config-summary dt {
  color: rgba(255,255,255,.48);
  font-size: .76rem;
}

.config-summary dd {
  margin: 0;
  color: rgba(255,255,255,.84);
  line-height: 1.45;
}

.tool-live-demo-panel {
  margin-top: .9rem;
  padding: .85rem;
  border: 1px solid rgba(126,232,255,.2);
  border-radius: 16px;
  background: rgba(0,0,0,.2);
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(126, 232, 255, .5) rgba(255,255,255,.08);
}

.tool-live-demo-panel.is-running {
  animation: demo-panel-pulse 420ms ease;
}

@keyframes demo-panel-pulse {
  0% {
    border-color: rgba(126,232,255,.22);
    box-shadow: none;
  }
  45% {
    border-color: rgba(126,232,255,.74);
    box-shadow: 0 0 0 1px rgba(126,232,255,.2), 0 16px 42px rgba(126,232,255,.12);
  }
  100% {
    border-color: rgba(126,232,255,.2);
    box-shadow: none;
  }
}

.tool-live-demo-panel p {
  margin: 0 0 .6rem;
  color: rgba(255,255,255,.68);
  line-height: 1.55;
}

.tool-live-demo-panel ol {
  margin: 0;
  padding-left: 1.1rem;
  color: rgba(255,255,255,.78);
}

.mock-demo-badge {
  display: inline-block;
  margin: 0 0 .6rem;
  padding: .2rem .6rem;
  font-size: .7rem;
  letter-spacing: .04em;
  color: rgba(126,232,255,.85);
  border: 1px solid rgba(126,232,255,.35);
  border-radius: 999px;
  background: rgba(126,232,255,.08);
}

.tool-live-demo-panel strong {
  display: block;
  margin-bottom: .4rem;
  color: var(--text);
}

.mock-demo-form {
  display: grid;
  gap: .6rem;
  margin: .6rem 0;
}

.mock-demo-form label {
  display: grid;
  gap: .3rem;
  color: var(--muted);
  font-size: .78rem;
}

.mock-demo-form input,
.mock-demo-form select {
  min-height: 40px;
  padding: 0 .75rem;
  color: var(--text);
  background: rgba(3, 6, 11, .58);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  outline: none;
}

.mock-demo-form input:focus,
.mock-demo-form select:focus {
  border-color: rgba(126,232,255,.62);
}

.secondary-btn {
  justify-self: start;
  height: 38px;
  padding: 0 18px;
  color: var(--text);
  background: rgba(126,232,255,.12);
  border: 1px solid rgba(126,232,255,.35);
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}

.secondary-btn:hover {
  transform: translateY(-1px);
  background: rgba(126,232,255,.2);
}

.mock-demo-output {
  margin-top: .6rem;
  padding-top: .6rem;
  border-top: 1px solid rgba(255,255,255,.08);
}

.mock-demo-output p {
  margin: 0 0 .5rem;
}

.mock-demo-label {
  display: inline-block;
  margin-right: .35rem;
  color: rgba(126,232,255,.88);
  font-weight: 600;
}

/* v0.3: Agent basket bar */
.agent-basket-bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-wrap: wrap;
  margin-top: .7rem;
  padding: .6rem .85rem;
  font-size: .82rem;
  color: rgba(126,232,255,.9);
  border: 1px solid rgba(126,232,255,.3);
  border-radius: 14px;
  background: rgba(126,232,255,.06);
}

.agent-basket-bar span {
  flex: 1;
  min-width: 0;
}

.agent-basket-open-btn {
  height: 30px;
  padding: 0 14px;
  font-size: .75rem;
  color: var(--text);
  background: rgba(126,232,255,.14);
  border: 1px solid rgba(126,232,255,.35);
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s ease;
}

.agent-basket-open-btn:hover {
  background: rgba(126,232,255,.24);
}

.agent-basket-overflow {
  width: 100%;
  margin: .3rem 0 0;
  font-size: .72rem;
  color: rgba(255,200,100,.75);
}

/* v0.3: card "Add to Agent" button */
.tool-card-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.add-to-agent-btn {
  height: 30px;
  padding: 0 12px;
  font-size: .72rem;
  color: rgba(126,232,255,.85);
  background: transparent;
  border: 1px solid rgba(126,232,255,.3);
  border-radius: 999px;
  cursor: pointer;
  transition: all .2s ease;
}

.add-to-agent-btn:hover {
  background: rgba(126,232,255,.1);
  border-color: rgba(126,232,255,.5);
}

.add-to-agent-btn.is-in-agent {
  color: var(--bg);
  background: rgba(126,232,255,.75);
  border-color: rgba(126,232,255,.75);
}

.project-card.is-in-agent {
  border-color: rgba(126,232,255,.4);
  box-shadow: 0 0 12px rgba(126,232,255,.08);
}

/* v0.3: goal custom input */
.config-goal-custom {
  width: 100%;
  margin-top: .5rem;
  min-height: 40px;
  padding: 0 .75rem;
  color: var(--text);
  background: rgba(3,6,11,.58);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  outline: none;
  font-size: .85rem;
}

.config-goal-custom:focus {
  border-color: rgba(126,232,255,.62);
}

/* v0.3: execution preview */
.execution-preview {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.1);
}

.execution-preview h4 {
  margin: 0 0 .8rem;
  font-size: .88rem;
  color: rgba(126,232,255,.9);
}

.execution-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.execution-steps::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(126,232,255,.18);
}

.execution-step {
  position: relative;
  padding-left: 28px;
  padding-bottom: .8rem;
}

.execution-step::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(126,232,255,.45);
  border: 2px solid rgba(126,232,255,.2);
}

.execution-step-head {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  margin-bottom: .3rem;
}

.execution-step-num {
  font-size: .7rem;
  color: rgba(126,232,255,.65);
  letter-spacing: .03em;
}

.execution-step-head strong {
  font-size: .82rem;
  color: var(--text);
}

.execution-step-body p {
  margin: 0 0 .25rem;
  font-size: .76rem;
  color: rgba(255,255,255,.6);
  line-height: 1.5;
}

.execution-label {
  color: rgba(255,255,255,.4);
  margin-right: .3rem;
}

.execution-kernel-summary {
  margin: .6rem 0 .4rem;
  padding: .5rem .75rem;
  font-size: .8rem;
  color: rgba(126,232,255,.85);
  background: rgba(126,232,255,.06);
  border-radius: 10px;
  border: 1px solid rgba(126,232,255,.15);
}

.execution-disclaimer {
  margin: .4rem 0 0;
  font-size: .68rem;
  color: rgba(255,255,255,.35);
  font-style: italic;
}

/* v0.4: Agent workbench */
.configurator-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.workbench-panel {
  width: min(860px, 62vw);
}

.workbench-taskbar {
  display: grid;
  gap: .4rem;
  padding: .85rem 1rem;
  border: 1px solid rgba(126,232,255,.2);
  border-radius: 14px;
  background: rgba(126,232,255,.05);
}

.workbench-taskbar-badge {
  font-size: .7rem;
  color: rgba(126,232,255,.75);
  letter-spacing: .03em;
}

.workbench-taskbar-row {
  font-size: .82rem;
  color: rgba(255,255,255,.78);
}

.workbench-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.workbench-step {
  padding: .8rem .9rem;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 14px;
  background: rgba(255,255,255,.04);
}

.workbench-step-active {
  border-color: rgba(126,232,255,.55);
  background: rgba(126,232,255,.08);
}

.workbench-step-done {
  border-color: rgba(159,255,236,.3);
}

.workbench-step-locked {
  opacity: .5;
}

.workbench-step-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: .5rem;
}

.workbench-step-state {
  margin-left: auto;
  font-size: .7rem;
  color: rgba(255,255,255,.5);
}

.workbench-step-body p {
  margin: 0 0 .25rem;
  font-size: .78rem;
  color: rgba(255,255,255,.65);
  line-height: 1.5;
}

.workbench-run-btn {
  min-height: 38px;
  padding: 0 1rem;
  font-size: .8rem;
}

.workbench-step-running {
  color: rgba(126,232,255,.85);
  animation: workbench-running-pulse 1.1s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .workbench-step-running {
    animation: none;
  }
}

@keyframes workbench-running-pulse {
  0%, 100% { opacity: .6; }
  50% { opacity: 1; }
}

.workbench-summary-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: .5rem;
}

.workbench-summary {
  margin-top: .5rem;
}

.workbench-summary[hidden] {
  display: none;
}

@media (max-width: 1180px) {
  .configurator-panel {
    inset: 8vh 4vw 5vh 4vw;
    width: auto;
  }
}

@media (max-width: 820px) {
  .topbar nav {
    gap: 8px;
  }

  .configurator-panel {
    inset: 78px 16px 72px 16px;
    max-height: calc(100vh - 150px);
    border-radius: 20px;
  }

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

  .config-summary dl div {
    grid-template-columns: 1fr;
    gap: .25rem;
  }
}


/* Merged v1.0 deployment, scenarios, and formal booking styles */
.required-mark {
  text-decoration: none;
  color: rgba(126, 244, 229, 0.9);
  font-style: normal;
  margin-left: 2px;
}

.feedback-panel select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  padding: 14px 36px 14px 16px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.07)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.45)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E")
    no-repeat right 14px center;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  cursor: pointer;
  transition: border-color 220ms ease, box-shadow 220ms ease, background-color 220ms ease;
}

.feedback-panel select:focus {
  border-color: rgba(126, 244, 229, 0.55);
  background-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 4px rgba(126, 244, 229, 0.08);
}

.feedback-panel select option {
  background: #1a2235;
  color: rgba(255, 255, 255, 0.9);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-optional-divider {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 2px 0;
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.form-optional-divider::before,
.form-optional-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.form-optional-divider span {
  white-space: nowrap;
}

/* Booking success panel */
.booking-success {
  display: none;
  padding: clamp(32px, 4vw, 48px);
  text-align: center;
  border-radius: 28px;
}

.booking-success.is-visible {
  display: grid;
  gap: 16px;
  place-items: center;
}

.booking-success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid rgba(126, 244, 229, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: rgba(126, 244, 229, 0.9);
}

.booking-success h3 {
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
}

.booking-success p {
  max-width: 360px;
  color: rgba(255, 255, 255, 0.65);
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 1.7;
}

/* ============ Deploy Trust Layer (Scene 3) ============ */

.page-deploy {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.deploy-veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(130deg, rgba(3, 7, 14, .9) 0%, rgba(5, 18, 32, .75) 50%, rgba(4, 9, 16, .9) 100%),
    radial-gradient(circle at 70% 30%, rgba(96, 180, 238, .12), transparent 40%),
    radial-gradient(circle at 20% 75%, rgba(126, 244, 229, .07), transparent 36%);
}

.deploy-layout {
  position: relative;
  z-index: 6;
  display: grid;
  grid-template-columns: minmax(280px, .9fr) minmax(360px, 1.1fr);
  gap: clamp(32px, 5vw, 72px);
  width: min(90vw, 1280px);
  align-items: center;
  padding: 72px 0 40px;
}

.deploy-intro {
  display: grid;
  gap: 0;
}

.deploy-title-line {
  display: block;
}

.deploy-intro h2 {
  font-size: clamp(30px, 4vw, 58px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  font-weight: 540;
  margin: 14px 0 18px;
}

.deploy-sub {
  max-width: 480px;
  color: rgba(255, 255, 255, .65);
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.72;
  margin: 0 0 clamp(20px, 3vh, 36px);
}

.deploy-methods {
  margin-bottom: clamp(18px, 2.8vh, 30px);
}

.deploy-method-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.deploy-chip {
  padding: 6px 14px;
  border: 1px solid rgba(126, 244, 229, .3);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(126, 244, 229, .85);
  background: rgba(126, 244, 229, .06);
}

.deploy-flow-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.deploy-flow-steps li {
  font-size: clamp(11px, 0.9vw, 13px);
  color: rgba(255, 255, 255, .68);
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  position: relative;
  white-space: nowrap;
}

.deploy-flow-steps li:not(:last-child)::after {
  content: "›";
  display: inline-block;
  margin-left: 10px;
  color: rgba(255, 255, 255, .22);
}

.deploy-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.deploy-card {
  padding: 18px 20px;
  border-radius: 20px;
  display: grid;
  gap: 6px;
  transition: transform 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
}

.deploy-card:hover {
  transform: translateY(-3px);
  border-color: rgba(126, 244, 229, .26);
  box-shadow: 0 16px 48px rgba(55, 231, 214, .1), 0 8px 24px rgba(0, 0, 0, .28);
}

.deploy-card .small-label {
  margin-bottom: 4px;
  color: rgba(126, 244, 229, .7);
}

.deploy-card h4 {
  font-size: clamp(13px, 1.05vw, 15px);
  font-weight: 600;
  color: rgba(255, 255, 255, .92);
  margin: 0;
  letter-spacing: -0.01em;
}

.deploy-card p {
  font-size: clamp(11px, 0.88vw, 13px);
  color: rgba(255, 255, 255, .52);
  line-height: 1.62;
  margin: 0;
}

/* Reveal animation for Scene 3 */
.deploy-reveal {
  opacity: 0;
  transform: translateY(22px);
}

body[data-phase="deploy"] .deploy-reveal,
body[data-phase="transition-3-deploy"] .deploy-reveal,
body[data-phase="transition-scenarios-deploy"] .deploy-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 640ms ease var(--reveal-delay, 0ms), transform 640ms ease var(--reveal-delay, 0ms);
}

/* Responsive */
@media (max-width: 1100px) {
  .deploy-layout {
    grid-template-columns: 1fr;
    align-content: start;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding: 72px 4px 32px;
    gap: 24px;
  }

  .deploy-features {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .deploy-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============ Scenarios Page (Scene 4) ============ */

.page-scenarios {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.scenarios-veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(140deg, rgba(3, 7, 14, .9) 0%, rgba(8, 14, 28, .78) 50%, rgba(4, 9, 16, .9) 100%),
    radial-gradient(circle at 75% 25%, rgba(126, 244, 229, .08), transparent 40%),
    radial-gradient(circle at 25% 70%, rgba(96, 180, 238, .07), transparent 36%);
}

.scenarios-layout {
  position: relative;
  z-index: 6;
  display: grid;
  grid-template-columns: minmax(240px, .8fr) minmax(380px, 1.2fr);
  gap: clamp(28px, 4vw, 64px);
  width: min(92vw, 1280px);
  align-items: center;
  padding: 72px 0 40px;
}

.scenarios-intro {
  display: grid;
  gap: 0;
}

.scenarios-title-line {
  display: block;
}

.scenarios-intro h2 {
  font-size: clamp(28px, 3.5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.04em;
  font-weight: 540;
  margin: 14px 0 18px;
}

.scenarios-sub {
  max-width: 380px;
  color: rgba(255, 255, 255, .62);
  font-size: clamp(13px, 1.1vw, 16px);
  line-height: 1.72;
  margin: 0;
}

.scenarios-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.scenario-card {
  padding: 16px 20px;
  border-radius: 18px;
  display: grid;
  gap: 10px;
}

.scenario-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.scenario-num {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  color: rgba(126, 244, 229, .5);
  flex-shrink: 0;
}

.scenario-name {
  font-size: clamp(13px, 1.05vw, 15px);
  font-weight: 700;
  color: rgba(255, 255, 255, .94);
  margin: 0;
  letter-spacing: -0.01em;
}

.scenario-dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  row-gap: 4px;
  align-items: baseline;
}

.scenario-dl dt {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  color: rgba(126, 244, 229, .58);
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 1px;
}

.scenario-dl dd {
  margin: 0;
  font-size: clamp(11px, 0.9vw, 13px);
  color: rgba(255, 255, 255, .62);
  line-height: 1.52;
}

.scenario-tools-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
}

.s-chip {
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid rgba(126, 244, 229, .22);
  border-radius: 999px;
  color: rgba(126, 244, 229, .75);
  background: rgba(126, 244, 229, .05);
  white-space: nowrap;
}

/* Reveal animation */
.scenarios-reveal {
  opacity: 0;
  transform: translateY(20px);
}

body[data-phase="scenarios"] .scenarios-reveal,
body[data-phase="transition-deploy-scenarios"] .scenarios-reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 600ms ease var(--reveal-delay, 0ms), transform 600ms ease var(--reveal-delay, 0ms);
}

@media (max-width: 1100px) {
  .scenarios-layout {
    grid-template-columns: 1fr;
    align-content: start;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding: 72px 4px 32px;
    gap: 18px;
  }

  .scenarios-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .scenarios-cards {
    grid-template-columns: 1fr;
  }
}

/* Scene 2 continue CTA — lockpage exit */
.scene2-continue-cta {
  border: none;
  cursor: pointer;
  font-family: inherit;
  color: #06121b;
  background: linear-gradient(120deg, #7ee8ff 0%, #9fffec 100%);
  font-weight: 600;
  letter-spacing: .02em;
  transition: transform .18s ease, box-shadow .18s ease;
}

.scene2-continue-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(126,232,255,.28);
}

.scene2-continue-cta.is-floating {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  font-size: .85rem;
  box-shadow: 0 10px 28px rgba(126,232,255,.22);
  z-index: 40;
  visibility: hidden;
  pointer-events: none;
}

body[data-phase="scene2"] .scene2-continue-cta.is-floating {
  visibility: visible;
  pointer-events: auto;
}

.scene2-continue-cta.is-inline {
  display: none;
  margin: 1.75rem auto 0;
  padding: .85rem 1.4rem;
  border-radius: 14px;
  font-size: .95rem;
}

@media (max-width: 820px) {
  .scene2-continue-cta.is-floating {
    display: none;
  }
  .scene2-continue-cta.is-inline {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scene2-continue-cta {
    transition: none;
  }
  .scene2-continue-cta:hover {
    transform: none;
  }
}