:root {
  --bg: #06090c;
  --bg-elevated: rgba(13, 18, 24, 0.9);
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #eef3f7;
  --muted: rgba(238, 243, 247, 0.72);
  --subtle: rgba(238, 243, 247, 0.45);
  --accent-warm: #f0ae7a;
  --accent-cool: #8ee3ff;
  --accent-blue: #8baeff;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, "Noto Sans SC", system-ui, sans-serif;
  background:
    radial-gradient(1100px 700px at 0% 0%, rgba(240, 174, 122, 0.16), transparent 56%),
    radial-gradient(900px 640px at 100% 0%, rgba(88, 197, 255, 0.16), transparent 52%),
    radial-gradient(800px 560px at 50% 28%, rgba(139, 174, 255, 0.1), transparent 58%),
    linear-gradient(180deg, #091018 0%, #06090c 32%, #06080b 100%);
  background-attachment: fixed;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

.skip {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(5, 8, 11, 0.95);
  z-index: 1000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 8, 11, 0.72);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.brand-word {
  font-family: Sora, Inter, sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #f3efe9 0%, #a6dfff 52%, #f0ae7a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-sub {
  color: var(--subtle);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 180ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
}

.section {
  padding: 40px 0;
}

.hero {
  padding: 52px 0 44px;
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: 40px;
  align-items: center;
}

.hero-copy {
  max-width: 580px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-cool);
  font-family: Sora, Inter, sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.h1,
.h2,
.product-title,
.character-stage-name,
.contact-title,
.cta-title {
  font-family: Sora, "Noto Sans SC", sans-serif;
}

.h1 {
  margin: 0;
  font-size: clamp(42px, 5.4vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.accent {
  background: linear-gradient(135deg, var(--accent-warm) 0%, #dfe8f2 38%, var(--accent-cool) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead,
.section-intro,
.product-sub,
.card-text,
.tech-text,
.character-stage-desc,
.contact-note,
.cta-sub {
  color: var(--muted);
}

.lead {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    filter 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #081019;
  background: linear-gradient(135deg, var(--accent-warm) 0%, var(--accent-cool) 100%);
  box-shadow: 0 18px 34px rgba(142, 227, 255, 0.2);
}

.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.pill-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
  color: rgba(238, 243, 247, 0.88);
  font-size: 13px;
  line-height: 1;
}

.hero-visual,
.product-panel-media,
.character-stage-media,
.card-media,
.hero-art {
  position: relative;
  min-width: 0;
}

.media {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow);
}

.hero-art {
  isolation: isolate;
}

.hero-art::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 35%;
  background: linear-gradient(180deg, rgba(5, 8, 11, 0), rgba(5, 8, 11, 0.3));
  pointer-events: none;
}

.hero-art img,
.product-panel-media img,
.card-media img,
.character-option-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-art img {
  aspect-ratio: 16 / 10;
}

.hero-float-card {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 280px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(7, 12, 17, 0.74);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(14px);
}

.hero-float-card strong {
  font-size: 18px;
  line-height: 1.3;
}

.hero-float-card span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.hero-float-label {
  color: var(--accent-cool) !important;
  font-family: Sora, Inter, sans-serif;
  font-size: 11px !important;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.split > * {
  min-width: 0;
}

.section-head {
  margin-bottom: 28px;
}

.section-intro {
  max-width: 580px;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
}

.card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.025)),
    rgba(9, 13, 18, 0.86);
  box-shadow: var(--shadow);
}

.cards-3,
.cards-4,
.cards-2,
.tech-grid {
  display: grid;
  gap: 18px;
}

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

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card-feature {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 22px 22px 20px;
}

.feature-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feature-mark,
.tech-no {
  color: rgba(238, 243, 247, 0.18);
  font-family: Sora, Inter, sans-serif;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
}

.card-title,
.tech-title {
  margin-top: 18px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.card-text,
.tech-text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
}

.accent-line {
  width: 100%;
  height: 2px;
  margin-top: 18px;
  border-radius: 999px;
}

.accent-amber {
  background: linear-gradient(90deg, rgba(240, 174, 122, 0.95), rgba(240, 174, 122, 0));
}

.accent-cyan {
  background: linear-gradient(90deg, rgba(142, 227, 255, 0.95), rgba(142, 227, 255, 0));
}

.accent-blue {
  background: linear-gradient(90deg, rgba(139, 174, 255, 0.95), rgba(139, 174, 255, 0));
}

.character-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  gap: 18px;
  align-items: stretch;
}

.character-stage {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.58fr);
  min-height: 720px;
  overflow: hidden;
}

.character-stage-media {
  min-height: 100%;
  border-radius: 28px 0 0 28px;
  border: 0;
  box-shadow: none;
  background:
    radial-gradient(circle at 20% 12%, rgba(240, 174, 122, 0.18), transparent 28%),
    radial-gradient(circle at 100% 20%, rgba(142, 227, 255, 0.18), transparent 34%),
    rgba(7, 11, 15, 0.94);
}

.character-stage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: posterDrift 14s ease-in-out infinite alternate;
  opacity: 1;
  filter: blur(0);
  will-change: opacity, filter;
  transition:
    opacity 220ms ease,
    filter 220ms ease;
}

.character-stage-orbit,
.character-stage-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.character-stage-orbit::before,
.character-stage-orbit::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  border: 1px solid rgba(142, 227, 255, 0.18);
  filter: blur(0.2px);
}

.character-stage-orbit::before {
  width: 72%;
  height: 72%;
  right: -10%;
  bottom: -8%;
  transform: rotate(-14deg);
}

.character-stage-orbit::after {
  width: 52%;
  height: 52%;
  left: -12%;
  top: 4%;
  border-color: rgba(240, 174, 122, 0.16);
}

.character-stage-grid::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 38%;
  background:
    linear-gradient(180deg, rgba(8, 12, 16, 0), rgba(8, 12, 16, 0.78)),
    radial-gradient(circle at 40% 0%, rgba(142, 227, 255, 0.16), transparent 48%);
}

.character-stage-body {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 34px 30px 32px;
  min-width: 0;
}

.character-stage-label,
.character-option-kicker {
  color: var(--accent-cool);
  font-family: Sora, Inter, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.character-stage-name {
  margin: 10px 0 0;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.character-stage-desc {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
}

.character-stage-meta {
  margin: 16px 0 0;
  color: rgba(238, 243, 247, 0.92);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.character-list {
  display: grid;
  gap: 14px;
}

.character-option {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 14px;
  width: 100%;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: rgba(8, 12, 16, 0.8);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.character-option:hover,
.character-option.is-active {
  border-color: rgba(142, 227, 255, 0.26);
  background: rgba(12, 17, 22, 0.96);
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.2);
}

.character-option:focus-visible {
  outline: 2px solid rgba(142, 227, 255, 0.45);
  outline-offset: 3px;
}

.character-option-media {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: none;
}

.character-option-media img {
  aspect-ratio: 4 / 5;
}

.character-option-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

.character-option-name {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
}

.character-option-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.character-stage.is-swapping .character-stage-media img {
  opacity: 0.28;
  filter: blur(8px);
}

.product-stack {
  display: grid;
  gap: 18px;
}

.product-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 0;
  overflow: hidden;
}

.product-panel-reverse {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.product-panel-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px 32px;
  min-width: 0;
}

.product-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.product-sub {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
}

.product-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.product-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  font: inherit;
  text-align: left;
}

button.product-item {
  cursor: pointer;
}

button.product-item:hover,
button.product-item:focus-visible,
.product-item.is-active {
  border-color: rgba(243, 180, 127, 0.34);
  background: rgba(255, 248, 239, 0.075);
}

button.product-item:focus-visible {
  outline: 2px solid rgba(146, 221, 244, 0.7);
  outline-offset: 3px;
}

.product-item strong {
  font-size: 15px;
  font-weight: 600;
}

.product-item span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.product-panel-media {
  border-radius: 0;
  border: 0;
  box-shadow: none;
}

.product-panel-media img {
  aspect-ratio: 16 / 10;
  opacity: 1;
  transform: scale(1);
  will-change: opacity, transform, filter;
  transition:
    opacity 220ms ease,
    transform 220ms ease,
    filter 220ms ease;
}

[data-carousel="products"] .product-panel-media {
  background:
    radial-gradient(circle at 50% 42%, rgba(246, 223, 200, 0.13), transparent 42%),
    rgba(11, 14, 16, 0.9);
}

[data-carousel="products"] .product-panel-media img {
  object-fit: contain;
}

.product-panel-media.is-swapping img {
  opacity: 0.22;
  filter: blur(6px);
  transform: scale(0.985);
}

.product-panel-reverse .product-panel-copy {
  order: 2;
}

.product-panel-reverse .product-panel-media {
  order: 1;
}

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

.tech-card {
  padding: 24px;
}

.tech-title {
  margin-top: 16px;
}

.tech-callout {
  margin-top: 18px;
  padding: 28px 28px 30px;
  background:
    linear-gradient(135deg, rgba(240, 174, 122, 0.12), rgba(142, 227, 255, 0.08)),
    rgba(10, 14, 19, 0.92);
}

.tech-callout-head {
  display: grid;
  gap: 2px;
}

.card-scene {
  overflow: hidden;
}

.card-scene .card-media {
  border-radius: 28px 28px 0 0;
  border: 0;
  box-shadow: none;
}

.card-scene .card-media img {
  aspect-ratio: 16 / 10;
}

.card-body {
  padding: 20px 22px 22px;
}

.quote {
  padding: 18px 0 30px;
}

.quote-inner {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}

.quote-zh {
  font-size: clamp(20px, 2.6vw, 34px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.03em;
}

.quote-en {
  max-width: 900px;
  margin: 12px auto 0;
  color: var(--subtle);
  font-size: 14px;
  line-height: 1.75;
}

.card-contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 26px;
}

.contact-copy {
  display: grid;
  gap: 8px;
  max-width: 360px;
  min-width: 0;
}

.contact-title {
  font-size: 26px;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.contact-sub {
  color: var(--accent-cool);
  font-size: 16px;
  font-weight: 600;
}

.contact-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.qr-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 140px;
  min-width: 140px;
  aspect-ratio: 1;
  padding: 8px;
  border: 1px solid rgba(255, 226, 194, 0.16);
  border-radius: 20px;
  background: rgba(255, 248, 239, 0.94);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

.qr-shell img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 14px;
  object-fit: contain;
}

.section-cta {
  padding-top: 24px;
  padding-bottom: 54px;
}

.cta-slab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(240, 174, 122, 0.14), rgba(142, 227, 255, 0.09)),
    rgba(8, 12, 16, 0.92);
  box-shadow: var(--shadow);
}

.cta-copy {
  display: grid;
  gap: 8px;
}

.cta-title {
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.cta-sub {
  font-size: 15px;
  line-height: 1.8;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 32px 0 42px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.footer-brand {
  font-family: Sora, Inter, sans-serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.footer-link,
.footer-meta {
  color: var(--subtle);
  font-size: 12px;
  line-height: 1.6;
}

@keyframes posterDrift {
  0% {
    transform: scale(1.02) translate3d(0, 0, 0);
  }

  100% {
    transform: scale(1.07) translate3d(-1.2%, -1.4%, 0);
  }
}

@keyframes stageSwap {
  0% {
    opacity: 0.68;
    transform: scale(1.035);
  }

  100% {
    opacity: 1;
    transform: scale(1.02);
  }
}

@media (max-width: 1120px) {
  .hero-shell,
  .character-showcase,
  .product-panel,
  .product-panel-reverse {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 100%;
  }

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

  .section-intro {
    max-width: 100%;
  }

  .character-stage {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .character-stage-media {
    border-radius: 28px 28px 0 0;
    min-height: 520px;
  }

  .product-panel-media,
  .product-panel-reverse .product-panel-media,
  .product-panel-reverse .product-panel-copy {
    order: initial;
  }

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-3,
  .tech-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 32px, 1240px);
  }

  .header-inner {
    min-height: 68px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero-float-card {
    position: static;
    max-width: none;
    margin: 12px;
  }

  .hero-art {
    display: flex;
    flex-direction: column;
  }

  .cards-4,
  .cards-2 {
    grid-template-columns: 1fr;
  }

  .character-list {
    grid-template-columns: 1fr;
  }

  .card-contact,
  .cta-slab {
    flex-direction: column;
    align-items: flex-start;
  }

  .qr-shell {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1240px);
  }

  .h1 {
    font-size: 34px;
    line-height: 1.04;
  }

  .hero-home .accent,
  .hero-contact .accent {
    display: block;
  }

  .brand-sub {
    letter-spacing: 0.08em;
  }

  .nav {
    gap: 14px;
  }

  .nav-link {
    font-size: 13px;
  }

  .section {
    padding: 34px 0;
  }

  .card,
  .media,
  .cta-slab {
    border-radius: 24px;
  }

  .hero-float-card,
  .product-panel-copy,
  .tech-card,
  .tech-callout,
  .card-contact,
  .card-feature {
    padding-left: 20px;
    padding-right: 20px;
  }

  .character-stage-body {
    padding: 24px 20px;
  }

  .character-stage-media {
    min-height: 420px;
  }

  .character-option {
    grid-template-columns: 96px minmax(0, 1fr);
    padding: 10px;
  }

  .character-option-name {
    font-size: 16px;
  }

  .quote-zh {
    font-size: 22px;
  }
}

/* Visual foundation refresh: soft companion intelligence */
:root {
  --bg: #07090b;
  --bg-elevated: rgba(15, 18, 20, 0.9);
  --surface: rgba(255, 255, 255, 0.055);
  --surface-strong: rgba(255, 255, 255, 0.09);
  --line: rgba(255, 255, 255, 0.115);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f5f1ec;
  --muted: rgba(245, 241, 236, 0.74);
  --subtle: rgba(245, 241, 236, 0.48);
  --accent-warm: #f3b47f;
  --accent-soft: #f6dfc8;
  --accent-cool: #92ddf4;
  --accent-blue: #9fb8ff;
  --glow-warm: rgba(243, 180, 127, 0.2);
  --glow-cool: rgba(146, 221, 244, 0.18);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

body {
  background:
    radial-gradient(900px 580px at 8% 4%, rgba(243, 180, 127, 0.2), transparent 58%),
    radial-gradient(760px 520px at 92% 0%, rgba(146, 221, 244, 0.16), transparent 56%),
    linear-gradient(180deg, #111b22 0%, #080b0e 30%, #07090b 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.52), transparent 62%);
}

.site-header {
  background: rgba(8, 10, 12, 0.78);
}

.brand-word {
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff8f0 0%, #f3b47f 34%, #92ddf4 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.brand-sub {
  color: rgba(245, 241, 236, 0.52);
  letter-spacing: 0.08em;
  text-transform: none;
}

.hero {
  padding: 64px 0 54px;
}

.hero-shell {
  gap: 54px;
}

.h1 {
  max-width: 680px;
  letter-spacing: -0.035em;
}

.h2,
.product-title,
.cta-title,
.character-stage-name {
  letter-spacing: -0.025em;
}

.lead {
  max-width: 620px;
  color: rgba(245, 241, 236, 0.78);
  font-size: 17px;
}

.eyebrow {
  color: var(--accent-cool);
  letter-spacing: 0.18em;
}

.accent {
  background: linear-gradient(135deg, var(--accent-warm) 0%, var(--accent-soft) 44%, var(--accent-cool) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.btn-primary {
  background: linear-gradient(135deg, #f3b47f 0%, #f6dfc8 46%, #92ddf4 100%);
  box-shadow: 0 18px 42px rgba(243, 180, 127, 0.22);
}

.btn-ghost,
.pill-chip {
  background: rgba(255, 255, 255, 0.045);
}

.pill-chip {
  border-color: rgba(246, 223, 200, 0.14);
  color: rgba(245, 241, 236, 0.86);
}

.section {
  position: relative;
  padding: 58px 0;
}

.section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: min(1240px, calc(100% - 48px));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(246, 223, 200, 0.16), rgba(146, 221, 244, 0.14), transparent);
}

.section-characters::before,
.section-doing::before {
  display: none;
}

.section-head {
  margin-bottom: 34px;
}

.section-intro {
  color: rgba(245, 241, 236, 0.68);
}

.card,
.media {
  border-radius: 22px;
  border-color: rgba(246, 223, 200, 0.11);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.026)),
    rgba(13, 16, 18, 0.82);
}

.hero-art {
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.42), 0 0 80px rgba(243, 180, 127, 0.08);
}

.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(circle at 22% 82%, rgba(243, 180, 127, 0.22), transparent 34%);
}

.hero-float-card {
  z-index: 2;
  border-color: rgba(246, 223, 200, 0.16);
  border-radius: 18px;
  background: rgba(12, 14, 16, 0.74);
}

.character-stage {
  min-height: 680px;
}

.character-stage-media,
.character-stage {
  border-radius: 22px;
}

.character-stage-media {
  background:
    radial-gradient(circle at 18% 12%, rgba(243, 180, 127, 0.24), transparent 30%),
    radial-gradient(circle at 100% 20%, rgba(146, 221, 244, 0.18), transparent 34%),
    rgba(9, 12, 14, 0.96);
}

.character-stage-body,
.product-panel-copy,
.tech-card,
.card-feature,
.card-body,
.tech-callout,
.card-contact {
  background: linear-gradient(180deg, rgba(246, 223, 200, 0.025), transparent 58%);
}

.character-option {
  border-radius: 20px;
  background: rgba(13, 16, 18, 0.74);
}

.character-option:hover,
.character-option.is-active {
  border-color: rgba(243, 180, 127, 0.28);
  background: rgba(20, 22, 24, 0.92);
}

.feature-mark,
.tech-no {
  color: rgba(246, 223, 200, 0.16);
}

.product-panel {
  border-radius: 24px;
}

.product-item {
  border-radius: 16px;
  border-color: rgba(246, 223, 200, 0.1);
  background: rgba(255, 255, 255, 0.038);
}

.tech-callout,
.cta-slab {
  background:
    linear-gradient(135deg, rgba(243, 180, 127, 0.16), rgba(146, 221, 244, 0.08)),
    rgba(12, 15, 17, 0.9);
}

.card-scene .card-media {
  border-radius: 22px 22px 0 0;
}

.quote-inner {
  border-top-color: rgba(246, 223, 200, 0.12);
}

.quote-zh {
  color: #fff8f0;
}

.footer {
  background: rgba(5, 6, 7, 0.26);
}

@media (max-width: 760px) {
  .hero {
    padding-top: 42px;
  }

  .section {
    padding: 46px 0;
  }

  .section::before {
    width: min(100% - 32px, 1240px);
  }
}

@media (max-width: 560px) {
  .h1 {
    font-size: 36px;
  }

  .lead {
    font-size: 16px;
  }

  .card,
  .media,
  .cta-slab {
    border-radius: 20px;
  }
}

/* V3 tone refresh: warmer companion intelligence */
:root {
  --bg: #0f0d0b;
  --bg-elevated: rgba(22, 19, 16, 0.92);
  --surface: rgba(255, 248, 239, 0.06);
  --surface-strong: rgba(255, 248, 239, 0.1);
  --line: rgba(255, 226, 194, 0.13);
  --line-strong: rgba(255, 226, 194, 0.24);
  --text: #fff7ef;
  --muted: rgba(255, 247, 239, 0.74);
  --subtle: rgba(255, 247, 239, 0.5);
  --accent-warm: #ffb57e;
  --accent-soft: #ffe1c2;
  --accent-gold: #f8ce82;
  --accent-cool: #9bdcea;
  --accent-blue: #aebdff;
  --glow-warm: rgba(255, 181, 126, 0.24);
  --glow-cool: rgba(155, 220, 234, 0.1);
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.36);
}

html,
body {
  min-height: 100%;
  height: auto;
}

body {
  background:
    radial-gradient(860px 560px at 12% 2%, rgba(255, 181, 126, 0.24), transparent 62%),
    radial-gradient(720px 520px at 92% 8%, rgba(248, 206, 130, 0.13), transparent 58%),
    radial-gradient(560px 420px at 76% 30%, rgba(155, 220, 234, 0.08), transparent 62%),
    linear-gradient(180deg, #1a1511 0%, #100f0d 34%, #0b0a09 100%);
}

body::before {
  opacity: 0.42;
  background:
    linear-gradient(90deg, rgba(255, 226, 194, 0.022) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 226, 194, 0.018) 1px, transparent 1px);
  background-size: 86px 86px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.36), transparent 58%);
}

.site-header {
  border-bottom-color: rgba(255, 226, 194, 0.08);
  background: rgba(14, 12, 10, 0.78);
}

.brand-word {
  background: linear-gradient(135deg, #fff8ef 0%, #ffb57e 42%, #f8ce82 72%, #9bdcea 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.brand-sub {
  color: rgba(255, 247, 239, 0.58);
}

.eyebrow,
.hero-float-label,
.character-stage-label,
.character-option-kicker,
.contact-sub {
  color: var(--accent-gold) !important;
}

.accent {
  background: linear-gradient(135deg, #ffb57e 0%, #ffe1c2 42%, #f8ce82 74%, #9bdcea 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.btn-primary {
  background: linear-gradient(135deg, #ffb57e 0%, #ffe1c2 52%, #f8ce82 100%);
  box-shadow: 0 18px 42px rgba(255, 181, 126, 0.26);
}

.btn-primary:hover {
  filter: saturate(1.05) brightness(1.03);
}

.btn-ghost,
.pill-chip {
  border-color: rgba(255, 226, 194, 0.14);
  background: rgba(255, 248, 239, 0.052);
}

.pill-chip {
  color: rgba(255, 247, 239, 0.88);
}

.section::before {
  background: linear-gradient(90deg, transparent, rgba(255, 181, 126, 0.2), rgba(248, 206, 130, 0.13), transparent);
}

.card,
.media {
  border-color: rgba(255, 226, 194, 0.13);
  background:
    linear-gradient(180deg, rgba(255, 248, 239, 0.065), rgba(255, 248, 239, 0.028)),
    rgba(20, 17, 14, 0.84);
}

.hero-art {
  box-shadow:
    0 34px 90px rgba(0, 0, 0, 0.42),
    0 0 96px rgba(255, 181, 126, 0.12);
}

.hero-art::before {
  background:
    radial-gradient(circle at 22% 82%, rgba(255, 181, 126, 0.25), transparent 36%),
    linear-gradient(180deg, rgba(255, 226, 194, 0.04), transparent 42%);
}

.hero-art::after {
  background: linear-gradient(180deg, rgba(15, 13, 11, 0), rgba(15, 13, 11, 0.36));
}

.hero-float-card {
  border-color: rgba(255, 226, 194, 0.2);
  background: rgba(21, 17, 14, 0.78);
}

.character-stage-media {
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 181, 126, 0.28), transparent 32%),
    radial-gradient(circle at 92% 24%, rgba(248, 206, 130, 0.16), transparent 36%),
    radial-gradient(circle at 74% 80%, rgba(155, 220, 234, 0.08), transparent 38%),
    rgba(15, 13, 11, 0.96);
}

.character-stage-grid::before {
  background:
    linear-gradient(180deg, rgba(15, 13, 11, 0), rgba(15, 13, 11, 0.78)),
    radial-gradient(circle at 40% 0%, rgba(255, 181, 126, 0.18), transparent 48%);
}

.character-stage-orbit::before,
.character-stage-orbit::after {
  border-color: rgba(255, 226, 194, 0.18);
}

.character-option {
  border-color: rgba(255, 226, 194, 0.1);
  background: rgba(21, 17, 14, 0.74);
}

.character-option:hover,
.character-option.is-active {
  border-color: rgba(255, 181, 126, 0.34);
  background: rgba(28, 22, 17, 0.94);
}

.feature-mark,
.tech-no {
  color: rgba(255, 226, 194, 0.18);
}

.accent-amber {
  background: linear-gradient(90deg, rgba(255, 181, 126, 0.95), rgba(255, 181, 126, 0));
}

.accent-cyan {
  background: linear-gradient(90deg, rgba(248, 206, 130, 0.92), rgba(248, 206, 130, 0));
}

.accent-blue {
  background: linear-gradient(90deg, rgba(155, 220, 234, 0.72), rgba(155, 220, 234, 0));
}

.product-item {
  border-color: rgba(255, 226, 194, 0.12);
  background: rgba(255, 248, 239, 0.045);
}

.tech-callout,
.cta-slab {
  border-color: rgba(255, 226, 194, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 181, 126, 0.18), rgba(248, 206, 130, 0.1) 48%, rgba(155, 220, 234, 0.05)),
    rgba(19, 16, 13, 0.92);
}

.section-scenes .card {
  background:
    linear-gradient(180deg, rgba(255, 226, 194, 0.07), rgba(255, 248, 239, 0.028)),
    rgba(22, 18, 15, 0.86);
}

.quote {
  padding-top: 28px;
}

.quote-inner {
  border-top-color: rgba(255, 226, 194, 0.14);
}

.quote-zh {
  color: #fff4e8;
}

.footer {
  border-top-color: rgba(255, 226, 194, 0.08);
  background: rgba(8, 7, 6, 0.32);
}

/* V5 hero experiment: full-screen 16:9 video entrance on top of V3 */
.home-page .site-header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  border-bottom-color: rgba(255, 226, 194, 0.1);
  background:
    linear-gradient(180deg, rgba(12, 9, 7, 0.72), rgba(12, 9, 7, 0.24) 78%, rgba(12, 9, 7, 0));
  backdrop-filter: blur(12px);
}

.hero-video-full {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  padding: 132px 0 76px;
  overflow: hidden;
  isolation: isolate;
  background:
    linear-gradient(180deg, rgba(15, 13, 11, 0.2), rgba(15, 13, 11, 0.92)),
    #0f0d0b;
}

.hero-video-full::before {
  display: none;
}

.hero-bg-video,
.hero-video-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg-video {
  z-index: -3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% center;
  background:
    linear-gradient(180deg, rgba(15, 13, 11, 0.1), rgba(15, 13, 11, 0.9)),
    url("./generated/hero-companion-anime.webp") center / cover no-repeat;
}

.hero-video-overlay {
  z-index: -2;
  background:
    radial-gradient(720px 520px at 76% 42%, rgba(255, 181, 126, 0.12), transparent 64%),
    linear-gradient(90deg, rgba(9, 7, 6, 0.74) 0%, rgba(9, 7, 6, 0.48) 38%, rgba(9, 7, 6, 0.18) 72%, rgba(9, 7, 6, 0.38) 100%),
    linear-gradient(180deg, rgba(9, 7, 6, 0.24) 0%, rgba(9, 7, 6, 0.18) 44%, rgba(9, 7, 6, 0.82) 100%);
}

.hero-video-overlay::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 26%;
  background: linear-gradient(180deg, rgba(15, 13, 11, 0), var(--bg));
}

.hero-video-content {
  position: relative;
  z-index: 1;
}

.hero-video-content .hero-copy {
  max-width: 740px;
}

.hero-video-content .h1 {
  max-width: 820px;
  text-shadow: 0 18px 54px rgba(0, 0, 0, 0.48);
}

.hero-video-content .lead {
  max-width: 640px;
  color: rgba(255, 247, 239, 0.82);
  text-shadow: 0 10px 32px rgba(0, 0, 0, 0.42);
}

.hero-video-content .btn-ghost,
.hero-video-content .pill-chip {
  background: rgba(15, 12, 10, 0.42);
  backdrop-filter: blur(12px);
}

.hero-video-content .pill-chip {
  border-color: rgba(255, 226, 194, 0.2);
}

@media (max-width: 760px) {
  .hero-video-full {
    align-items: flex-end;
    min-height: 100svh;
    padding: 112px 0 54px;
  }

  .hero-bg-video {
    object-position: 82% center;
  }

  .hero-video-overlay {
    background:
      linear-gradient(180deg, rgba(9, 7, 6, 0.32) 0%, rgba(9, 7, 6, 0.24) 36%, rgba(9, 7, 6, 0.86) 100%),
      linear-gradient(90deg, rgba(9, 7, 6, 0.66), rgba(9, 7, 6, 0.3));
  }
}

@media (max-width: 560px) {
  .home-page .header-inner {
    min-height: 64px;
  }

  .hero-video-full {
    padding: 98px 0 42px;
  }

.hero-video-content .lead {
    line-height: 1.74;
  }
}

.ai-dazi-page {
  height: 100%;
  overflow: hidden;
}

.ai-dazi-main {
  height: calc(100svh - 76px);
  min-height: 520px;
  background: #0a0f18;
}

.ai-dazi-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #0a0f18;
}

@media (max-width: 560px) {
  .ai-dazi-main {
    height: calc(100svh - 64px);
    min-height: 540px;
  }
}