:root {
  /* Brand design direction: color scale, typography roles, and visual core. */
  --sky-50: #eaf8ff;
  --sky-100: #d6f0fe;
  --sky-200: #bee6fb;
  --sky-300: #97d5ff;
  --sky-400: #63c6fe;
  --sky-500: #3ba9f0;
  --sky-600: #2b89d4;
  --sky-700: #2569ab;
  --sky-800: #1e4e80;
  --sky-900: #173a5e;
  --page: #f5fbff;
  --paper: #ffffff;
  --ink: var(--sky-900);
  --muted: #4f8bb7;
  --soft: rgba(79, 139, 183, 0.68);
  --line: rgba(99, 198, 254, 0.18);
  --blue: var(--sky-400);
  --blue-deep: var(--sky-700);
  --mint: #8de3ef;
  --coral: #b9ddff;
  --lavender: var(--sky-100);
  --shadow: 0 28px 80px rgba(20, 55, 95, 0.16);
  --radius: 8px;
  --header-height: 72px;
  --body-font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --brand-font: "Noto Serif SC", "Songti SC", STSong, serif;
  --script-font: "Ma Shan Zheng", "Noto Serif SC", cursive;
  --sans: var(--body-font);
  --serif: var(--brand-font);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  font-family: var(--body-font);
  font-weight: 300;
  background:
    radial-gradient(circle at 18% 10%, rgba(99, 198, 254, 0.24), transparent 30rem),
    radial-gradient(circle at 80% 18%, rgba(190, 230, 251, 0.34), transparent 28rem),
    linear-gradient(180deg, var(--sky-50) 0%, #f5fbff 44%, #ffffff 100%);
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(18px, 4vw, 64px);
  border-bottom: 1px solid rgba(99, 198, 254, 0.18);
  background: rgba(245, 251, 255, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--brand-font);
  font-weight: 500;
  letter-spacing: 0.08em;
}

.brand-logo {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background:
    radial-gradient(circle at 40% 32%, rgba(255, 255, 255, 0.92) 0 18%, transparent 19%),
    radial-gradient(circle at 52% 56%, var(--sky-400), var(--sky-600) 64%, var(--sky-700));
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0;
  box-shadow:
    0 16px 34px rgba(43, 137, 212, 0.22),
    inset 0 0 0 1px rgba(255, 255, 255, 0.64);
}

.brand-name {
  font-size: 17px;
  font-weight: 500;
}

.footer-group a {
  transition: color 0.2s ease;
}

.footer-group a:hover {
  color: var(--blue-deep);
}

.section-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.float-section {
  opacity: 0.08;
  transform: translateY(34px) scale(0.985);
  filter: blur(8px);
  transition:
    opacity 0.9s ease,
    transform 0.9s cubic-bezier(0.2, 0.72, 0.18, 1),
    filter 0.9s ease;
  will-change: opacity, transform, filter;
}

.float-section.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

.float-section.is-visible.is-near {
  transform: translateY(-7px) scale(1.004);
}

.hero-section {
  width: min(1440px, calc(100% - clamp(36px, 7vw, 112px)));
  height: calc(100svh - var(--header-height));
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: stretch;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(34px, 5vh, 62px) 0 clamp(28px, 4vh, 50px);
}

.hero-content {
  position: relative;
  z-index: 1;
  min-width: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-self: stretch;
  padding: clamp(42px, 8vh, 90px) 0 clamp(20px, 3vh, 34px);
}

.hero-content h1,
.section-heading h2,
.echo-card h2 {
  margin: 0;
  font-family: var(--brand-font);
  letter-spacing: 0;
}

.hero-content h1 {
  max-width: 8.4em;
  font-size: clamp(48px, 4.8vw, 68px);
  line-height: 1.14;
  font-weight: 300;
  white-space: normal;
  text-wrap: balance;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(56px, 7vh, 82px);
  padding-top: 0;
}

.download-button {
  min-width: 138px;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid rgba(99, 198, 254, 0.22);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 30px rgba(20, 55, 95, 0.08);
  color: var(--ink);
  font-size: 16px;
  font-weight: 500;
  backdrop-filter: blur(14px);
  cursor: pointer;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.download-button:hover {
  transform: translateY(-2px);
  border-color: rgba(99, 198, 254, 0.48);
  background: var(--sky-50);
  box-shadow: 0 18px 42px rgba(20, 55, 95, 0.14);
}

.download-button:active,
.download-button:focus-visible {
  color: #ffffff;
  outline: none;
  transform: translateY(0);
  border-color: transparent;
  background: linear-gradient(135deg, var(--sky-600), var(--sky-400));
  box-shadow: 0 16px 34px rgba(43, 137, 212, 0.3);
}

.download-button span:last-child {
  line-height: 1.12;
}

.download-button-disabled {
  cursor: default;
}

.download-button-disabled:hover,
.download-button-disabled:active,
.download-button-disabled:focus-visible {
  color: var(--ink);
  transform: none;
  border-color: rgba(99, 198, 254, 0.22);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 30px rgba(20, 55, 95, 0.08);
  outline: none;
}

.visual-slot {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  align-self: stretch;
  justify-self: stretch;
  border-radius: 0;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.72), transparent 36%),
    radial-gradient(circle at 64% 28%, rgba(151, 213, 255, 0.2), transparent 36%),
    radial-gradient(circle at 34% 70%, rgba(99, 198, 254, 0.22), transparent 42%);
  box-shadow: none;
  overflow: hidden;
  pointer-events: auto;
  mask-image: radial-gradient(circle at 50% 50%, #000 0 54%, rgba(0, 0, 0, 0.72) 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 0 54%, rgba(0, 0, 0, 0.72) 70%, transparent 100%);
}

.breathing-nebula {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(560px, 46vw, 76vh);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  isolation: isolate;
  animation: nebula-breathe 7.8s ease-in-out infinite;
}

.breathing-nebula::before,
.breathing-nebula::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.72;
}

.breathing-nebula::before {
  background:
    radial-gradient(circle at 52% 48%, rgba(255, 255, 255, 0.92), transparent 14%),
    radial-gradient(circle at 44% 58%, rgba(99, 198, 254, 0.42), transparent 38%),
    radial-gradient(circle at 62% 42%, rgba(190, 230, 251, 0.34), transparent 34%),
    radial-gradient(circle at 36% 34%, rgba(151, 213, 255, 0.24), transparent 32%);
}

.breathing-nebula::after {
  inset: 2%;
  background:
    conic-gradient(from 32deg, transparent 0 12%, rgba(99, 198, 254, 0.22) 18%, transparent 30%, rgba(151, 213, 255, 0.2) 42%, transparent 58%, rgba(43, 137, 212, 0.14) 72%, transparent 88%),
    radial-gradient(circle, rgba(255, 255, 255, 0.52), transparent 58%);
  animation: nebula-drift 14s linear infinite;
}

.nebula-core,
.nebula-ring,
.nebula-glow,
.nebula-star {
  position: absolute;
  display: block;
}

.nebula-core {
  left: 50%;
  top: 50%;
  z-index: 3;
  width: 112px;
  height: 112px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 36%, #ffffff 0 18%, rgba(255, 255, 255, 0.7) 19% 28%, transparent 29%),
    radial-gradient(circle, rgba(99, 198, 254, 0.82), rgba(190, 230, 251, 0.54) 48%, rgba(37, 105, 171, 0.18) 72%, transparent 74%);
  box-shadow:
    0 0 42px rgba(99, 198, 254, 0.34),
    0 0 88px rgba(43, 137, 212, 0.2);
}

.nebula-ring {
  left: 50%;
  top: 50%;
  z-index: 2;
  border: 1px solid rgba(74, 168, 255, 0.28);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-18deg);
  transform-origin: 50% 50%;
  box-shadow: 0 0 24px rgba(99, 198, 254, 0.14);
}

.ring-one {
  width: 360px;
  height: 150px;
  animation: nebula-orbit-one 18s linear infinite;
}

.ring-two {
  width: 430px;
  height: 180px;
  border-color: rgba(43, 137, 212, 0.16);
  transform: translate(-50%, -50%) rotate(58deg);
  animation: nebula-orbit-two 24s linear infinite;
}

.nebula-glow {
  z-index: 1;
  border-radius: 50%;
  filter: blur(24px);
}

.glow-blue {
  left: 8%;
  top: 24%;
  width: 210px;
  height: 210px;
  background: rgba(99, 198, 254, 0.24);
}

.glow-mint {
  right: 10%;
  top: 18%;
  width: 180px;
  height: 180px;
  background: rgba(190, 230, 251, 0.24);
}

.glow-coral {
  right: 16%;
  bottom: 12%;
  width: 190px;
  height: 190px;
  background: rgba(151, 213, 255, 0.16);
}

.nebula-star {
  z-index: 4;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 14px rgba(99, 198, 254, 0.76);
}

.star-one {
  left: 26%;
  top: 34%;
}

.star-two {
  right: 24%;
  top: 42%;
  background: rgba(99, 198, 254, 0.9);
}

.star-three {
  left: 58%;
  bottom: 22%;
  background: rgba(151, 213, 255, 0.92);
}

.features-section {
  padding: clamp(72px, 10vw, 128px) 0;
}

.section-heading {
  max-width: 1040px;
  margin-bottom: clamp(36px, 5vw, 60px);
}

.section-heading h2 {
  max-width: 980px;
  font-size: clamp(34px, 3.6vw, 48px);
  line-height: 1.16;
  font-weight: 300;
  white-space: nowrap;
}

.feature-grid {
  display: grid;
  gap: clamp(42px, 6vw, 74px);
}

.feature-card {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(280px, 0.88fr) minmax(320px, 1fr);
  align-items: center;
  gap: clamp(34px, 6vw, 76px);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transition: transform 0.24s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-visual {
  width: 100%;
  height: clamp(220px, 24vw, 286px);
  margin-bottom: 0;
  border-radius: 0;
  background-color: transparent;
  border: 0;
  mask-image: linear-gradient(180deg, #000 0 74%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0 74%, transparent 100%);
}

.feature-image {
  display: block;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
  background: #f7f9fd;
  -webkit-mask-image: radial-gradient(ellipse 92% 90% at 50% 48%, #000 58%, rgba(0, 0, 0, 0.88) 76%, transparent 100%);
  mask-image: radial-gradient(ellipse 92% 90% at 50% 48%, #000 58%, rgba(0, 0, 0, 0.88) 76%, transparent 100%);
}

.feature-chat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(16px, 2vw, 22px);
  overflow: hidden;
  border: 1px solid rgba(63, 143, 208, 0.16);
  border-radius: 8px;
  background:
    radial-gradient(circle at 82% 10%, rgba(187, 223, 253, 0.44), transparent 34%),
    rgba(255, 255, 255, 0.84);
  box-shadow: 0 18px 46px rgba(8, 27, 82, 0.09);
  backdrop-filter: blur(18px);
  -webkit-mask-image: none;
  mask-image: none;
}

.chat-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 32px;
  color: #6f7992;
  font-size: 12px;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  color: #ffffff;
  background: linear-gradient(135deg, #3f8fd0, #63aee0);
  font-family: var(--brand-font);
  font-size: 11px;
  font-weight: 600;
  box-shadow: 0 8px 18px rgba(63, 143, 208, 0.2);
}

.chat-status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  background: #56c9a4;
}

.chat-memory {
  padding: 5px 8px;
  border-radius: 8px;
  color: #3f8fd0;
  background: #f1f8ff;
  font-size: 11px;
  font-weight: 500;
}

.chat-thread {
  position: relative;
  z-index: 1;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.chat-bubble {
  max-width: 84%;
  margin: 0;
  padding: 10px 13px;
  border-radius: 8px;
  font-family: var(--body-font);
  font-size: clamp(12px, 1.2vw, 14px);
  line-height: 1.55;
}

.chat-user {
  align-self: flex-end;
  color: #ffffff;
  background: linear-gradient(135deg, #3f8fd0, #5c7fd0);
  box-shadow: 0 8px 18px rgba(63, 143, 208, 0.16);
}

.chat-ai {
  align-self: flex-start;
  border: 1px solid #eff2fa;
  color: #081b52;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 20px rgba(8, 27, 82, 0.06);
}

.chat-thread-multimodal {
  gap: 7px;
}

.chat-media {
  display: grid;
  grid-template-columns: 58px auto;
  align-items: center;
  gap: 9px;
  padding: 7px 10px 7px 7px;
}

.chat-photo {
  width: 58px;
  height: 42px;
  display: block;
  border-radius: 6px;
  background:
    radial-gradient(ellipse at 60% 82%, #ffffff 0 24%, transparent 26%),
    linear-gradient(180deg, #63aee0 0%, #bbdffd 58%, #ffffff 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.46);
}

.chat-voice {
  display: flex;
  align-items: center;
  gap: 9px;
}

.voice-bars {
  height: 18px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.voice-bars i {
  width: 2px;
  height: 7px;
  display: block;
  border-radius: 2px;
  background: currentColor;
}

.voice-bars i:nth-child(2),
.voice-bars i:nth-child(4) {
  height: 14px;
}

.voice-bars i:nth-child(3) {
  height: 18px;
}

.feature-copy {
  max-width: 560px;
}

.personal-visual {
  background:
    radial-gradient(circle at 30% 50%, var(--sky-400) 0 10%, transparent 11%),
    radial-gradient(circle at 72% 50%, var(--sky-300) 0 10%, transparent 11%),
    linear-gradient(90deg, transparent 20%, rgba(99, 198, 254, 0.18) 20% 21%, transparent 21% 78%, rgba(43, 137, 212, 0.12) 78% 79%, transparent 79%),
    radial-gradient(circle at 50% 58%, rgba(255, 255, 255, 0.84), transparent 45%),
    transparent;
}

.memory-visual {
  background:
    linear-gradient(90deg, transparent 16%, var(--sky-300) 16% 24%, transparent 24%),
    linear-gradient(90deg, transparent 44%, var(--sky-500) 44% 52%, transparent 52%),
    linear-gradient(90deg, transparent 72%, var(--sky-200) 72% 80%, transparent 80%),
    linear-gradient(180deg, transparent 49%, rgba(23, 58, 94, 0.1) 49% 51%, transparent 51%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.76), transparent 48%),
    transparent;
}

.multimodal-visual {
  background:
    radial-gradient(circle at 72% 34%, var(--sky-300) 0 8%, transparent 9%),
    repeating-linear-gradient(90deg, transparent 0 7%, var(--sky-500) 7% 9%, transparent 9% 14%),
    linear-gradient(135deg, transparent 0 48%, var(--sky-200) 49% 55%, transparent 56%),
    radial-gradient(circle at 48% 58%, rgba(255, 255, 255, 0.82), transparent 46%),
    transparent;
}

.feature-number {
  display: block;
  margin-bottom: 16px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
}

.feature-card h3 {
  margin: 0 0 14px;
  font-family: var(--body-font);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.2;
  font-weight: 500;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 300;
  line-height: 1.85;
  max-width: 32em;
}

.echo-section {
  position: relative;
  padding: clamp(76px, 11vw, 128px) 0;
  overflow: hidden;
}

.echo-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 52%;
  width: min(920px, 92vw);
  height: min(520px, 58vw);
  transform: translate(-50%, -50%);
  background:
    radial-gradient(circle at 24% 74%, rgba(99, 198, 254, 0.18), transparent 34%),
    radial-gradient(circle at 74% 70%, rgba(190, 230, 251, 0.24), transparent 36%),
    radial-gradient(circle at 50% 28%, rgba(255, 255, 255, 0.72), transparent 42%);
  filter: blur(18px);
  pointer-events: none;
}

.echo-card {
  position: relative;
  z-index: 1;
  min-height: 360px;
  display: grid;
  place-content: center;
  padding: clamp(28px, 6vw, 64px) 0;
  border-radius: 0;
  text-align: center;
  background: transparent;
  box-shadow: none;
}

.echo-label {
  margin: 0 0 18px;
  color: var(--blue-deep);
  font-size: 18px;
  font-weight: 900;
}

.echo-card h2 {
  font-family: var(--script-font);
  color: var(--sky-700);
  font-size: clamp(38px, 4.55vw, 58px);
  line-height: 1.42;
  font-weight: 400;
  white-space: nowrap;
}

.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 54px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(360px, 1.45fr);
  align-items: start;
  gap: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-brand strong {
  display: block;
  color: var(--ink);
  font-family: var(--brand-font);
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 0.08em;
}

.footer-brand p {
  margin: 10px 0 0;
}

.footer-accordion {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  align-items: start;
}

.footer-group {
  position: relative;
  min-width: 0;
}

.footer-group summary {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 400;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.footer-group summary::-webkit-details-marker {
  display: none;
}

.footer-group summary::after {
  content: none;
}

.footer-group[open] summary {
  color: var(--blue-deep);
}

.footer-panel {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 4;
  display: grid;
  gap: 6px;
  min-width: 118px;
  padding: 0;
  background: transparent;
}

.footer-group a {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.site-footer small {
  grid-column: 1 / -1;
  color: var(--soft);
}

.compliance-records {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 8px 0 0;
  color: var(--soft);
  font-size: 12px;
  line-height: 1.6;
}

.compliance-link,
.compliance-placeholder {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.compliance-link:hover {
  color: var(--ink);
}

.public-security-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.public-security-icon {
  width: 18px;
  height: 20px;
  object-fit: contain;
  flex: 0 0 auto;
}

.compliance-placeholder {
  opacity: 0.7;
}

.compliance-placeholder::before {
  content: "|";
  margin-right: 10px;
  color: color-mix(in srgb, var(--soft) 65%, transparent);
}

.compliance-placeholder[hidden] {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  filter: blur(4px);
  transition:
    opacity 0.78s ease,
    transform 0.78s cubic-bezier(0.2, 0.72, 0.18, 1),
    filter 0.78s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

@keyframes nebula-breathe {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(0.94);
    opacity: 0.88;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.04);
    opacity: 1;
  }
}

@keyframes nebula-drift {
  to {
    transform: rotate(360deg);
  }
}

@keyframes nebula-orbit-one {
  from {
    transform: translate(-50%, -50%) rotate(-18deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(342deg);
  }
}

@keyframes nebula-orbit-two {
  from {
    transform: translate(-50%, -50%) rotate(58deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(-302deg);
  }
}

@media (max-width: 960px) {
  .hero-section {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.86fr);
    height: calc(100svh - var(--header-height));
    min-height: 580px;
    gap: 20px;
  }

  .hero-content h1 {
    font-size: clamp(42px, 5.6vw, 58px);
  }

  .section-heading h2 {
    font-size: clamp(32px, 5.6vw, 48px);
  }

  .echo-card h2 {
    font-size: clamp(34px, 6.4vw, 54px);
  }

  .visual-slot {
    min-height: 0;
  }

  .breathing-nebula {
    left: 50%;
    top: 50%;
    width: min(450px, 43vw, 72vh);
    opacity: 1;
  }

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

  .footer-accordion {
    justify-content: flex-start;
  }

  .features-section {
    min-height: auto;
  }

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

  .feature-card {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .feature-copy {
    max-width: none;
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 66px;
  }

  .site-header {
    padding-inline: 14px;
    gap: 12px;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .brand-name {
    font-size: 15px;
  }

  .section-shell,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .site-footer {
    gap: 22px;
    padding-bottom: 44px;
  }

  .footer-accordion {
    gap: 14px;
  }

  .footer-group summary {
    font-size: 12px;
  }

  .footer-panel {
    min-width: 104px;
  }

  .hero-section {
    height: calc(100svh - var(--header-height));
    min-height: 540px;
    grid-template-columns: minmax(0, 1fr) minmax(210px, 0.82fr);
    gap: 12px;
    padding: 28px 0 32px;
  }

  .hero-content {
    min-height: 0;
    padding: 24px 0 14px;
  }

  .hero-content h1 {
    max-width: 7.6em;
    font-size: clamp(31px, 5.4vw, 38px);
    white-space: normal;
  }

  .download-actions {
    flex-direction: row;
    margin-top: clamp(38px, 6vh, 52px);
    padding-top: 0;
  }

  .download-button {
    width: auto;
    min-width: 110px;
    min-height: 46px;
    padding-inline: 18px;
    font-size: 14px;
  }

  .features-section {
    padding: 58px 0 70px;
  }

  .section-heading {
    margin-bottom: 16px;
  }

  .section-heading h2 {
    font-size: clamp(29px, 6.1vw, 40px);
    white-space: normal;
  }

  .feature-card {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 0;
  }

  .feature-visual {
    height: 156px;
    margin-bottom: 0;
  }

  .feature-image {
    height: clamp(190px, 46vw, 250px);
  }

  .feature-chat {
    height: 240px;
  }

  .feature-card h3 {
    font-size: 22px;
  }

  .visual-slot {
    height: 100%;
    min-height: 0;
  }

  .breathing-nebula {
    left: 50%;
    top: 50%;
    width: min(340px, 42vw, 66vh);
    opacity: 1;
  }

  .nebula-core {
    width: 86px;
    height: 86px;
  }

  .ring-one {
    width: 250px;
    height: 110px;
  }

  .ring-two {
    width: 300px;
    height: 130px;
  }

  .echo-card {
    min-height: 330px;
    border-radius: 0;
  }

  .echo-card h2 {
    font-size: clamp(30px, 6.6vw, 42px);
    white-space: nowrap;
  }
}

@media (max-width: 520px) {
  .hero-section {
    height: auto;
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 38px 0 50px;
  }

  .hero-content {
    min-height: 350px;
    padding-block: 0;
  }

  .hero-content h1,
  .echo-card h2 {
    white-space: normal;
  }

  .hero-content h1 {
    max-width: none;
    font-size: clamp(34px, 9vw, 42px);
  }

  .download-actions {
    flex-direction: column;
    margin-top: 46px;
    padding-top: 0;
  }

  .download-button {
    width: 100%;
  }

  .visual-slot {
    height: auto;
    min-height: 390px;
  }

  .breathing-nebula {
    width: min(330px, 82vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .float-section,
  .float-section.is-visible,
  .float-section.is-visible.is-near {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

/* Sky landing redesign */
.sky-landing {
  --ink: #071844;
  --muted: #6d7c9a;
  --blue: #4f7df7;
  --blue-deep: #1f55ee;
  --page: #f8fbff;
  --glass: rgba(255, 255, 255, 0.72);
  --glass-strong: rgba(255, 255, 255, 0.88);
  --line: rgba(98, 142, 213, 0.16);
  --shadow: 0 28px 90px rgba(82, 115, 178, 0.18);
  --header-height: 72px;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-weight: 400;
  background:
    radial-gradient(ellipse 1120px 760px at 26% 5%, rgba(255, 255, 255, 0.98) 0 46%, rgba(255, 255, 255, 0.72) 66%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, #cfe3ff 0%, #eaf4ff 18%, #f8fbff 46%, #ffffff 100%);
}

.sky-landing::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(circle at 7% 13%, rgba(255, 255, 255, 0.98) 0 10rem, rgba(255, 255, 255, 0) 22rem),
    radial-gradient(circle at 83% 15%, rgba(109, 158, 255, 0.28), transparent 30rem),
    radial-gradient(circle at 40% 54%, rgba(255, 255, 255, 0.86), transparent 34rem),
    linear-gradient(180deg, #bdd8ff 0%, #eaf4ff 38%, #fbfdff 76%, #ffffff 100%);
}

.page-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.sky-blur {
  position: absolute;
  display: block;
  border-radius: 999px;
  filter: blur(88px);
}

.sky-blur-one {
  left: -160px;
  top: 570px;
  width: 760px;
  height: 330px;
  background: rgba(210, 228, 255, 0.82);
}

.sky-blur-two {
  right: -90px;
  top: 700px;
  width: 620px;
  height: 300px;
  background: rgba(255, 255, 255, 0.86);
}

.sky-blur-three {
  left: 18%;
  top: 1160px;
  width: 920px;
  height: 430px;
  background: rgba(228, 240, 255, 0.72);
}

.sky-landing .site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  width: min(1140px, calc(100% - 56px));
  height: var(--header-height);
  margin: 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.sky-landing .brand {
  gap: 10px;
  color: #071844;
  font-family: inherit;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0;
}

.sky-landing .brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, #8bb9ff 0%, #4f64f7 100%);
  color: #ffffff;
  font-family: inherit;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 14px 32px rgba(79, 111, 247, 0.28), inset 0 0 0 1px rgba(255, 255, 255, 0.54);
}

.sky-landing .brand-name {
  font-size: inherit;
  font-weight: inherit;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(30px, 5vw, 62px);
  color: #071844;
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.9;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  border-radius: 999px;
  color: #ffffff;
  background: linear-gradient(135deg, #76a8ff, #4e65f5);
  box-shadow: 0 18px 45px rgba(79, 111, 247, 0.28);
  font-size: 15px;
  font-weight: 800;
}

.sky-landing .section-shell {
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
}

.sky-landing .reveal,
.sky-landing .float-section,
.sky-landing .float-section.is-visible,
.sky-landing .float-section.is-visible.is-near {
  opacity: 1;
  filter: none;
  transform: none;
}

.sky-landing .hero-section {
  position: relative;
  width: min(1140px, calc(100% - 56px));
  min-height: 540px;
  height: auto;
  display: grid;
  grid-template-columns: minmax(470px, 0.96fr) minmax(420px, 1.04fr);
  align-items: center;
  gap: 24px;
  padding: 116px 0 0;
  overflow: clip;
}

.sky-landing .hero-content {
  position: relative;
  z-index: 3;
  justify-content: center;
  padding: 0;
  transform: translateY(-4px);
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin: 0 0 30px;
  border-radius: 999px;
  color: #5070a8;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 10px 30px rgba(88, 122, 184, 0.1);
  backdrop-filter: blur(18px);
  font-size: 14px;
  font-weight: 800;
}

.eyebrow {
  padding: 9px 16px;
}

.section-kicker {
  padding: 0;
  color: var(--blue);
  background: transparent;
  box-shadow: none;
}

.eyebrow span,
.section-kicker span {
  color: var(--blue);
}

.sky-landing .hero-content h1 {
  max-width: none;
  color: #071844;
  font-family: inherit;
  font-size: clamp(52px, 5.2vw, 72px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.16;
  white-space: normal;
  text-shadow: 0 16px 46px rgba(62, 91, 160, 0.14);
}

.sky-landing .hero-content h1 span {
  white-space: nowrap;
  color: #5f83ff;
  background: linear-gradient(90deg, #5e84ff 0%, #8fb7ff 58%, #2f55ef 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  margin: 26px 0 0;
  color: #71809e;
  font-size: clamp(16px, 1.35vw, 18px);
  font-weight: 500;
  line-height: 1.9;
}

.sky-landing .download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 0;
  padding: 0;
}

.sky-landing .download-actions.center {
  justify-content: center;
}

.sky-landing .download-button {
  min-width: 128px;
  min-height: 42px;
  gap: 8px;
  padding: 0 18px;
  border: 0;
  border-radius: 9px;
  color: #ffffff;
  background: linear-gradient(180deg, #142346 0%, #06122e 100%);
  box-shadow: 0 16px 35px rgba(3, 15, 44, 0.25);
  font-size: 15px;
  font-weight: 800;
  backdrop-filter: none;
}

.sky-landing .download-button:hover {
  color: #ffffff;
  transform: translateY(-2px);
  background: linear-gradient(135deg, #244582, #0a1432);
  box-shadow: 0 22px 45px rgba(26, 58, 118, 0.3);
}

.sky-landing .download-button:focus-visible {
  outline: 3px solid rgba(79, 125, 247, 0.35);
  outline-offset: 3px;
}

.store-icon {
  font-size: 19px;
  line-height: 1;
}

.apple-store-icon {
  width: 19px;
  height: 19px;
  fill: currentColor;
}

.availability {
  margin: 19px 0 0;
  color: #8b98b1;
  font-size: 15px;
  font-weight: 500;
}

.sky-landing .hero-visual {
  position: absolute;
  inset: 0 -14vw 0 36%;
  z-index: 1;
  overflow: visible;
  pointer-events: none;
}

.sky-landing .hero-visual::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: min(560px, 45vw);
  background: url("assets/reference/hero-mock-right.png") right top / cover no-repeat;
  opacity: 1;
}

.planet-arc,
.orbit-line,
.shooting-star {
  display: none;
}

.intro-section {
  position: relative;
  z-index: 2;
  scroll-margin-top: 92px;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
  align-items: center;
  gap: clamp(42px, 8vw, 96px);
  padding: 18px 0 76px;
}

.intro-copy h2,
.section-heading h2,
.companion-card h2,
.final-section h2 {
  margin: 0;
  color: #071844;
  font-family: inherit;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.16;
}

.intro-copy h2 {
  font-size: clamp(32px, 3.4vw, 42px);
}

.intro-copy p:not(.section-kicker),
.section-heading p:not(.section-kicker),
.companion-copy p,
.final-section p {
  margin: 22px 0 0;
  color: #6d7c9a;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.9;
}

.soft-tabs {
  display: inline-flex;
  gap: 6px;
  margin-top: 30px;
  padding: 7px;
  border-radius: 999px;
  background: rgba(235, 243, 255, 0.84);
}

.soft-tabs span {
  min-width: 78px;
  padding: 12px 18px;
  border-radius: 999px;
  color: #445c86;
  text-align: center;
  font-size: 14px;
  font-weight: 800;
}

.soft-tabs span:first-child {
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 26px rgba(98, 142, 213, 0.13);
}

.glass-chat {
  position: relative;
  min-height: 346px;
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 24px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(232, 242, 255, 0.64)),
    rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.glass-chat::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 178px;
  height: 236px;
  border-radius: 0 98px 0 0;
  background:
    radial-gradient(circle at 44% 40%, rgba(255, 255, 255, 0.92) 0 12%, transparent 13%),
    linear-gradient(180deg, #bdd8ff 0%, #eef7ff 100%);
  box-shadow: inset 0 0 0 8px rgba(220, 235, 255, 0.7);
}

.chat-window {
  position: absolute;
  left: 60px;
  bottom: 0;
  width: 114px;
  height: 210px;
  border-radius: 58px 58px 0 0;
  background:
    radial-gradient(ellipse at 50% 72%, rgba(255, 255, 255, 0.94) 0 18%, transparent 19%),
    linear-gradient(180deg, #bdd8ff 0%, #eef7ff 100%);
  opacity: 0.78;
}

.chat-pill {
  position: absolute;
  max-width: 306px;
  margin: 0;
  padding: 13px 18px;
  border-radius: 17px;
  color: #536079;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 30px rgba(93, 124, 178, 0.13);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
}

.chat-answer {
  right: 58px;
  top: 90px;
  color: #ffffff;
  background: linear-gradient(135deg, #90b9ff, #4f78f2);
  box-shadow: 0 18px 34px rgba(79, 120, 242, 0.22);
}

.chat-note {
  right: 238px;
  top: 42px;
}

.chat-note.second {
  right: 255px;
  top: 148px;
}

.chat-answer.second {
  right: 60px;
  top: 206px;
  width: 282px;
}

.chat-note.third {
  right: 285px;
  top: 292px;
}

.memory-section {
  scroll-margin-top: 92px;
  padding: 32px 0 58px;
  text-align: center;
}

.memory-section .section-heading {
  max-width: 780px;
  margin: 0 auto 30px;
}

.memory-section .section-kicker {
  margin-inline: auto;
}

.memory-section .section-heading h2 {
  max-width: none;
  font-size: clamp(30px, 3.25vw, 42px);
  white-space: normal;
}

.memory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 780px;
  margin: 0 auto;
}

.memory-card {
  min-height: 116px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 20px 55px rgba(91, 123, 180, 0.12);
  backdrop-filter: blur(18px);
}

.memory-card p {
  margin: 0;
  color: #536282;
  font-size: 14px;
  font-weight: 800;
}

.memory-icon {
  position: relative;
  width: 34px;
  height: 34px;
  display: block;
  color: #7489b7;
}

.film-icon {
  border-radius: 6px;
  background:
    linear-gradient(135deg, transparent 0 28%, rgba(255, 255, 255, 0.82) 29% 39%, transparent 40% 56%, rgba(255, 255, 255, 0.82) 57% 67%, transparent 68%),
    linear-gradient(180deg, #6f84b6, #a8bce8);
}

.cup-icon::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 11px;
  width: 20px;
  height: 14px;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(180deg, #a9c4ef, #7089bb);
}

.cup-icon::after {
  content: "";
  position: absolute;
  right: 0;
  top: 13px;
  width: 10px;
  height: 9px;
  border: 3px solid #8fa8d9;
  border-left: 0;
  border-radius: 0 10px 10px 0;
}

.music-icon::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 4px;
  width: 6px;
  height: 24px;
  border-radius: 4px;
  background: linear-gradient(180deg, #6b83b8, #a8bce8);
  transform: rotate(38deg);
}

.music-icon::after {
  content: "";
  position: absolute;
  left: 5px;
  bottom: 3px;
  width: 16px;
  height: 10px;
  border-radius: 50%;
  background: #7890c0;
  transform: rotate(-18deg);
}

.book-icon {
  border-radius: 6px 4px 4px 6px;
  background: linear-gradient(90deg, #9cb8e8 0 48%, #c2d5f5 49% 100%);
}

.book-icon::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background: rgba(255, 255, 255, 0.78);
}

.home-icon::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 14px;
  width: 24px;
  height: 17px;
  border-radius: 5px;
  background: linear-gradient(180deg, #ffd36e, #e5a942);
}

.home-icon::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  width: 19px;
  height: 19px;
  border-radius: 5px;
  background: #e6b556;
  transform: rotate(45deg);
}

.cloud-icon::before,
.cloud-icon::after {
  content: "";
  position: absolute;
  background: linear-gradient(180deg, #b7d0f7, #92adde);
}

.cloud-icon::before {
  left: 3px;
  top: 15px;
  width: 28px;
  height: 12px;
  border-radius: 999px;
}

.cloud-icon::after {
  left: 10px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  box-shadow: -8px 7px 0 -3px #a8c1ef, 9px 8px 0 -4px #9db9e8;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 25px;
}

.slider-dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #dbe5f4;
}

.slider-dots span:first-child {
  background: #5b8bff;
}

.companion-section {
  scroll-margin-top: 92px;
  padding: 52px 0 0;
}

.companion-card {
  position: relative;
  min-height: 300px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  align-items: center;
  overflow: hidden;
  padding: 58px 76px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(238, 247, 255, 0.9), rgba(255, 255, 255, 0.72) 47%, rgba(219, 234, 255, 0.92)),
    url("assets/backgrounds/morning-cloud-transition.webp") center / cover;
  background-blend-mode: screen, normal;
  box-shadow: 0 28px 90px rgba(80, 114, 175, 0.18);
}

.companion-card::before {
  content: "";
  position: absolute;
  inset: auto -60px -95px 34%;
  height: 310px;
  background: radial-gradient(ellipse at center, rgba(151, 196, 255, 0.45), rgba(255, 255, 255, 0) 68%);
  filter: blur(45px);
}

.companion-copy {
  position: relative;
  z-index: 2;
  width: 100%;
}

.companion-card h2 {
  font-size: clamp(31px, 3.65vw, 46px);
}

.start-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 35px;
  min-width: 260px;
  min-height: 58px;
  margin-top: 30px;
  border-radius: 999px;
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 45px rgba(80, 112, 170, 0.15);
  font-size: 16px;
  font-weight: 900;
}

.room-scene {
  position: relative;
  z-index: 1;
  min-height: 210px;
}

.room-arch {
  position: absolute;
  right: 118px;
  bottom: -58px;
  width: 166px;
  height: 244px;
  border-radius: 86px 86px 0 0;
  background:
    radial-gradient(ellipse at 55% 63%, rgba(255, 255, 255, 0.9) 0 22%, transparent 23%),
    linear-gradient(180deg, rgba(232, 244, 255, 0.98), rgba(255, 255, 255, 0.95));
  box-shadow: inset 0 0 60px rgba(120, 170, 240, 0.24), 0 18px 42px rgba(120, 150, 190, 0.12);
}

.room-chair {
  position: absolute;
  right: 102px;
  bottom: 17px;
  width: 156px;
  height: 62px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 25px 50px rgba(110, 130, 160, 0.18);
}

.room-chair::before {
  content: "";
  position: absolute;
  left: 28px;
  bottom: 24px;
  width: 104px;
  height: 54px;
  border-radius: 48px 48px 18px 18px;
  background: linear-gradient(180deg, #ffffff, #f2f4f9);
}

.room-vase {
  position: absolute;
  right: 286px;
  bottom: 22px;
  width: 18px;
  height: 48px;
  border-radius: 12px 12px 6px 6px;
  background: linear-gradient(180deg, #ffffff, #e9eef9);
  box-shadow: 0 18px 34px rgba(112, 134, 170, 0.12);
}

.room-vase::before {
  content: "";
  position: absolute;
  left: 8px;
  bottom: 36px;
  width: 1px;
  height: 62px;
  background: #d1a86f;
  transform: rotate(-16deg);
  transform-origin: bottom;
}

.room-vase::after {
  content: "";
  position: absolute;
  left: 10px;
  bottom: 66px;
  width: 20px;
  height: 22px;
  border-top: 1px solid #d1a86f;
  border-left: 1px solid #d1a86f;
  transform: rotate(24deg);
  opacity: 0.72;
}

.final-section {
  scroll-margin-top: 92px;
  padding: 20px 0 40px;
  text-align: center;
}

.final-section h2 {
  font-size: clamp(28px, 3.3vw, 40px);
}

.final-section p {
  margin-top: 12px;
  color: #8390aa;
}

.sky-landing .site-footer {
  width: min(1180px, calc(100% - 56px));
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 26px;
  margin: 0 auto;
  padding: 34px 0 46px;
  border-top: 1px solid rgba(98, 142, 213, 0.14);
  color: #8290aa;
}

.sky-landing .footer-brand strong {
  color: #071844;
  font-family: inherit;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0;
}

.sky-landing .footer-meta {
  display: grid;
  gap: 8px;
  margin-top: 20px;
}

.sky-landing .footer-meta small {
  display: block;
}

.sky-landing .footer-meta .compliance-records {
  grid-column: auto;
  margin: 0;
}

.footer-links {
  display: grid;
  gap: 9px;
  font-size: 14px;
  font-weight: 700;
}

.footer-contact {
  white-space: nowrap;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.sky-landing .site-footer small {
  color: #96a2b8;
  font-size: 13px;
}

/* Shared, readable presentation for the generated legal pages. */
.legal-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0%, rgba(99, 198, 254, 0.2), transparent 30rem),
    linear-gradient(180deg, #eef8ff 0%, #f8fbff 22rem, #ffffff 100%);
}

.legal-page .site-header {
  position: sticky;
}

.legal-back-link {
  color: #5272aa;
  font-size: 14px;
  font-weight: 700;
}

.legal-back-link:hover {
  color: #2f55ef;
}

.legal-main {
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(48px, 7vw, 82px) 0 clamp(70px, 9vw, 110px);
}

.legal-document {
  padding: clamp(30px, 5vw, 64px);
  border: 1px solid rgba(98, 142, 213, 0.14);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 26px 80px rgba(48, 83, 144, 0.1);
  color: #243658;
  font-size: 16px;
  line-height: 1.9;
}

.legal-document h1,
.legal-document h2,
.legal-document h3,
.legal-document h4 {
  color: #071844;
  font-family: inherit;
  line-height: 1.45;
}

.legal-document h1 {
  margin: 0 0 32px;
  font-size: clamp(30px, 5vw, 44px);
}

.legal-document h2 {
  margin: 48px 0 18px;
  padding-top: 8px;
  font-size: clamp(23px, 3vw, 30px);
}

.legal-document h3 {
  margin: 34px 0 14px;
  font-size: 20px;
}

.legal-document h4 {
  margin: 28px 0 12px;
  font-size: 17px;
}

.legal-document p {
  margin: 12px 0;
}

.legal-document ul,
.legal-document ol {
  margin: 14px 0;
  padding-left: 1.5em;
}

.legal-document li + li {
  margin-top: 7px;
}

.legal-document hr {
  height: 1px;
  margin: 40px 0;
  border: 0;
  background: rgba(98, 142, 213, 0.16);
}

.legal-table-wrap {
  margin: 20px 0;
  overflow-x: auto;
  border: 1px solid rgba(98, 142, 213, 0.16);
  border-radius: 14px;
}

.legal-document table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.65;
}

.legal-document th,
.legal-document td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(98, 142, 213, 0.12);
  text-align: left;
  vertical-align: top;
}

.legal-document th {
  color: #18315f;
  background: #f2f7ff;
  font-weight: 800;
}

.legal-footer {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.legal-footer .footer-links {
  justify-items: end;
}

.legal-footer .footer-legal-links {
  justify-content: flex-end;
}

.legal-footer small {
  grid-column: 1 / -1;
}

@media (max-width: 680px) {
  .legal-main {
    width: min(100% - 24px, 880px);
    padding: 28px 0 60px;
  }

  .legal-document {
    padding: 24px 18px 34px;
    border-radius: 18px;
    font-size: 15px;
  }

  .legal-document h2 {
    margin-top: 38px;
  }

  .legal-footer {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .legal-footer .footer-links {
    justify-items: center;
  }

  .legal-footer .footer-legal-links {
    justify-content: center;
  }
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .sky-landing .hero-section {
    grid-template-columns: 1fr;
    min-height: 720px;
    padding-top: 126px;
  }

  .sky-landing .hero-visual {
    inset: 0 -34vw 0 10%;
    opacity: 0.62;
  }

  .planet-arc {
    top: 150px;
    right: -280px;
    width: 760px;
  }

  .orbit-line {
    right: -15px;
    top: 132px;
    width: 600px;
  }

  .intro-section,
  .companion-card {
    grid-template-columns: 1fr;
  }

  .glass-chat {
    min-height: 370px;
  }

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

  .companion-card {
    padding: 44px 34px 0;
  }

  .room-scene {
    min-height: 220px;
  }

  .sky-landing .site-footer {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .sky-landing .footer-meta .compliance-records {
    justify-content: center;
  }

  .footer-links {
    justify-items: center;
  }

  .footer-legal-links {
    justify-content: center;
  }
}

@media (max-width: 620px) {
  .sky-landing .site-header,
  .sky-landing .section-shell,
  .sky-landing .hero-section,
  .sky-landing .site-footer {
    width: min(100% - 32px, 1180px);
  }

  .sky-landing .site-header {
    height: 64px;
  }

  .nav-download {
    min-height: 40px;
    padding: 0 18px;
    font-size: 14px;
  }

  .sky-landing .brand {
    font-size: 19px;
  }

  .sky-landing .brand-logo {
    width: 31px;
    height: 31px;
    border-radius: 10px;
    font-size: 16px;
  }

  .sky-landing .hero-section {
    min-height: 660px;
    padding: 108px 0 68px;
  }

  .eyebrow {
    font-size: 12px;
  }

  .sky-landing .hero-content h1 {
    font-size: clamp(38px, 11vw, 44px);
    white-space: normal;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .sky-landing .download-actions {
    gap: 10px;
    flex-direction: row;
  }

  .sky-landing .download-button {
    min-width: calc(50% - 5px);
    flex: 1 1 0;
    padding: 0 12px;
    font-size: 13px;
  }

  .availability {
    font-size: 13px;
  }

  .sky-landing .hero-visual {
    inset: 0 -74vw 0 5%;
  }

  .planet-arc {
    top: 186px;
    width: 660px;
  }

  .orbit-line {
    top: 162px;
    right: -70px;
    width: 520px;
  }

  .shooting-star {
    top: 300px;
    right: 350px;
  }

  .intro-section {
    gap: 34px;
    padding-bottom: 54px;
  }

  .intro-copy h2,
  .memory-section .section-heading h2,
  .companion-card h2 {
    font-size: clamp(30px, 9vw, 38px);
  }

  .soft-tabs {
    width: 100%;
  }

  .soft-tabs span {
    min-width: 0;
    flex: 1;
    padding-inline: 10px;
  }

  .glass-chat {
    min-height: 390px;
    border-radius: 22px;
  }

  .chat-pill {
    max-width: 76%;
    font-size: 12px;
  }

  .chat-note {
    left: 46px;
    right: auto;
  }

  .chat-answer {
    right: 28px;
  }

  .chat-note.second {
    left: 36px;
    right: auto;
  }

  .chat-answer.second {
    right: 24px;
    width: 240px;
  }

  .chat-note.third {
    left: 48px;
    right: auto;
  }

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

  .companion-section {
    padding-top: 36px;
  }

  .companion-card {
    min-height: 420px;
    border-radius: 22px;
    padding: 36px 24px 0;
  }

  .start-button {
    width: 100%;
    min-width: 0;
  }

  .sky-landing .companion-card h2 span {
    white-space: normal;
  }

  .room-arch {
    right: 56px;
  }

  .room-chair {
    right: 38px;
  }

  .room-vase {
    right: 225px;
  }
}

/* Product content reset: 星见AI */
.sky-landing .brand-logo {
  display: none;
}

.brand-logo-image {
  width: 38px;
  height: 38px;
  display: block;
  border-radius: 13px;
  object-fit: cover;
  box-shadow: 0 14px 32px rgba(7, 24, 68, 0.18);
}

.sky-landing .site-nav {
  display: none;
}

.side-nav {
  position: fixed;
  right: max(18px, calc((100vw - 1180px) / 2 - 72px));
  top: 50%;
  z-index: 18;
  display: grid;
  gap: 18px;
  transform: translateY(-50%);
}

.side-nav-item {
  display: grid;
  grid-template-columns: 18px auto;
  align-items: center;
  gap: 10px;
  color: rgba(7, 24, 68, 0.42);
  font-size: 13px;
  font-weight: 800;
  transition: color 0.22s ease, transform 0.22s ease;
}

.side-nav-item span {
  width: 9px;
  height: 9px;
  justify-self: center;
  border-radius: 999px;
  background: rgba(94, 132, 255, 0.24);
  box-shadow: 0 0 0 0 rgba(94, 132, 255, 0);
  transition: width 0.22s ease, height 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.side-nav-item.is-active {
  color: #071844;
  transform: translateX(-4px);
}

.side-nav-item.is-active span {
  width: 13px;
  height: 13px;
  background: #5f83ff;
  box-shadow: 0 0 0 7px rgba(95, 131, 255, 0.14), 0 0 22px rgba(95, 131, 255, 0.36);
}

.feature-story {
  position: relative;
  z-index: 2;
  min-height: 560px;
  scroll-margin-top: 92px;
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(480px, 1.32fr);
  align-items: center;
  gap: clamp(28px, 3.3vw, 42px);
  padding: clamp(54px, 8vw, 90px) 0;
}

.feature-copy {
  max-width: 470px;
}

.feature-copy h2 {
  margin: 0;
  color: #071844;
  font-family: inherit;
  font-size: clamp(34px, 3.7vw, 48px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.15;
}

.feature-copy p:not(.section-kicker) {
  margin: 20px 0 0;
  color: #6d7c9a;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.9;
}

.feature-points {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-points li {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.feature-points .fp-ic {
  width: 54px;
  height: 54px;
  margin-bottom: 12px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #4f78f2;
  background: linear-gradient(135deg, rgba(144, 185, 255, 0.22), rgba(216, 235, 255, 0.58));
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 22px rgba(80, 114, 175, 0.14);
}

.feature-points .fp-ic svg {
  width: 26px;
  height: 26px;
  display: block;
}

.feature-points strong {
  color: #071844;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.3;
}

.feature-points em {
  margin-top: 6px;
  color: #6d7c9a;
  font-size: 12.5px;
  font-weight: 500;
  font-style: normal;
  line-height: 1.55;
}

.feature-glass-panel {
  position: relative;
  min-height: 350px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 28px;
  background:
    radial-gradient(ellipse at 24% 84%, rgba(194, 221, 255, 0.58) 0 18%, rgba(194, 221, 255, 0) 42%),
    radial-gradient(ellipse at 70% 16%, rgba(255, 255, 255, 0.9) 0 16%, rgba(255, 255, 255, 0) 40%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(232, 242, 255, 0.56));
  box-shadow: 0 28px 90px rgba(80, 114, 175, 0.14);
  backdrop-filter: blur(22px);
}

.feature-glass-panel::before {
  content: "";
  position: absolute;
  left: 28px;
  bottom: -24px;
  z-index: 0;
  width: 190px;
  height: 250px;
  border-radius: 96px 96px 0 0;
  background:
    radial-gradient(ellipse at 54% 34%, rgba(255, 255, 255, 0.94) 0 18%, transparent 19%),
    linear-gradient(180deg, rgba(184, 213, 255, 0.5), rgba(241, 248, 255, 0.72));
  box-shadow: inset 0 0 0 8px rgba(220, 235, 255, 0.34);
  opacity: 0.82;
}

.feature-glass-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 74% 24%, rgba(255, 255, 255, 0.75) 0 6%, transparent 7%),
    radial-gradient(ellipse at 80% 28%, rgba(255, 255, 255, 0.78) 0 8%, transparent 9%),
    radial-gradient(ellipse at 67% 31%, rgba(255, 255, 255, 0.66) 0 7%, transparent 8%),
    linear-gradient(168deg, transparent 0 50%, rgba(255, 255, 255, 0.55) 51%, rgba(255, 255, 255, 0.22) 58%, transparent 59%),
    linear-gradient(171deg, transparent 0 58%, rgba(183, 213, 255, 0.28) 59%, rgba(255, 255, 255, 0.56) 66%, transparent 67%);
  opacity: 0.72;
}

.chat-stage {
  position: absolute;
  inset: 38px 44px;
  z-index: 1;
}

.glass-bubble {
  position: absolute;
  max-width: min(360px, 72%);
  margin: 0;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 18px;
  color: #536079;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 18px 36px rgba(93, 124, 178, 0.13);
  backdrop-filter: blur(18px);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.62;
}

.bubble-user {
  right: 0;
  top: 24px;
  color: #ffffff;
  background: linear-gradient(135deg, rgba(144, 185, 255, 0.94), rgba(79, 120, 242, 0.94));
  box-shadow: 0 18px 38px rgba(79, 120, 242, 0.24);
}

.bubble-ai {
  left: 0;
  top: 122px;
}

#memory .bubble-user {
  top: 42px;
}

#memory .bubble-ai {
  top: 136px;
  max-width: min(430px, 78%);
}

.multimodal-stage .media-bubble {
  top: 10px;
  display: grid;
  grid-template-columns: 76px auto;
  align-items: center;
  gap: 12px;
  max-width: min(390px, 82%);
  padding: 10px 14px 10px 10px;
}

.sky-placeholder {
  width: 76px;
  height: 54px;
  display: block;
  border-radius: 12px;
  background: url("assets/backgrounds/multimodal-sky-photo-v1.jpg") center 38% / cover no-repeat;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.56);
}

.voice-bubble {
  right: 34px;
  top: 104px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.multimodal-stage .bubble-ai {
  top: 194px;
  max-width: min(430px, 82%);
}

.voice-bars {
  height: 18px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.voice-bars i {
  width: 3px;
  height: 7px;
  display: block;
  border-radius: 99px;
  background: currentColor;
}

.voice-bars i:nth-child(2),
.voice-bars i:nth-child(4) {
  height: 14px;
}

.voice-bars i:nth-child(3) {
  height: 18px;
}

.sky-landing .companion-card {
  min-height: 320px;
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  padding: clamp(44px, 7vw, 76px);
  text-align: center;
  background:
    linear-gradient(135deg, rgba(238, 247, 255, 0.9), rgba(255, 255, 255, 0.72) 47%, rgba(219, 234, 255, 0.92)),
    url("assets/backgrounds/morning-cloud-transition.webp") center / cover;
}

.sky-landing .companion-card h2 {
  width: 100%;
  max-width: none;
  font-size: clamp(30px, 3.15vw, 42px);
  line-height: 1.34;
  text-align: center;
}

.sky-landing .companion-card h2 span {
  display: block;
  white-space: nowrap;
}

@media (max-width: 1080px) {
  .side-nav {
    right: 16px;
  }

  .side-nav-item strong {
    display: none;
  }
}

@media (max-width: 860px) {
  .side-nav {
    top: 68%;
    left: auto;
    right: 10px;
    bottom: auto;
    grid-auto-flow: row;
    grid-auto-columns: auto;
    transform: translateY(-50%);
    padding: 10px 8px;
    border: 1px solid rgba(255, 255, 255, 0.68);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.68);
    box-shadow: 0 18px 44px rgba(80, 114, 175, 0.18);
    backdrop-filter: blur(18px);
  }

  .side-nav-item {
    grid-template-columns: 12px;
  }

  .side-nav-item strong {
    display: none;
  }

  .feature-story {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 58px 0;
  }

  .feature-glass-panel {
    min-height: 380px;
  }
}

@media (max-width: 620px) {
  .brand-logo-image {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }

  .sky-landing .hero-content h1 {
    white-space: normal;
  }

  .feature-copy h2 {
    font-size: clamp(30px, 9vw, 38px);
  }

  .feature-glass-panel {
    min-height: 360px;
    border-radius: 22px;
  }

  .chat-stage {
    inset: 30px 22px;
  }

  .glass-bubble {
    max-width: 86%;
    font-size: 12px;
  }

  .bubble-user {
    right: 0;
  }

  .bubble-ai {
    left: 0;
  }

  .multimodal-stage .media-bubble {
    grid-template-columns: 64px auto;
  }

  .sky-placeholder {
    width: 64px;
    height: 48px;
  }

  .voice-bubble {
    right: 0;
  }
}

/* Hero card composition: the planet image belongs to the full glass card, not a separate right-side slab. */
.sky-landing .hero-section {
  min-height: calc(100svh - 128px);
  margin-top: 96px;
  padding: clamp(54px, 7vw, 86px) clamp(40px, 6vw, 76px);
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: clamp(34px, 4.4vw, 58px);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 251, 255, 0.94) 30%, rgba(236, 245, 255, 0.38) 58%, rgba(207, 226, 255, 0.22) 100%),
    url("assets/reference/hero-mock-right.png") center / cover no-repeat;
  box-shadow:
    0 38px 120px rgba(80, 114, 175, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.sky-landing .hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 18% 48%, rgba(255, 255, 255, 0.98) 0 24%, rgba(255, 255, 255, 0.72) 42%, rgba(255, 255, 255, 0) 64%),
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0 72%, rgba(255, 255, 255, 0.66) 100%);
}

.sky-landing .hero-content {
  max-width: 620px;
}

.sky-landing .hero-content h1 {
  word-break: keep-all;
}

.sky-landing .hero-visual {
  display: none;
}

@media (max-width: 620px) {
  .sky-landing .hero-section {
    min-height: 610px;
    align-items: start;
    margin-top: 80px;
    padding: 132px 20px 34px;
    border-radius: 30px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.74) 0%, rgba(247, 251, 255, 0.95) 42%, rgba(255, 255, 255, 0.98) 100%),
      url("assets/reference/hero-mock-right.png") 62% top / auto 330px no-repeat;
  }

  .sky-landing .hero-content {
    padding-top: 0;
  }

  .feature-story {
    padding: 44px 0 54px;
  }
}

/* Chat preview v2: narrow phone-like conversation surface. */
.feature-story {
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.72fr);
  gap: clamp(42px, 6vw, 84px);
}

.feature-glass-panel {
  width: min(390px, 100%);
  min-height: 600px;
  justify-self: center;
  border-radius: 36px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.78) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 161, 220, 0.1) 1px, transparent 1px),
    radial-gradient(ellipse at 50% 22%, rgba(214, 232, 255, 0.88), rgba(255, 255, 255, 0) 46%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 250, 255, 0.78));
  background-size: 46px 46px, 46px 46px, auto, auto;
  box-shadow:
    0 34px 95px rgba(80, 114, 175, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.feature-glass-panel::before {
  left: 50%;
  top: 18px;
  bottom: auto;
  z-index: 2;
  width: 118px;
  height: 7px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: rgba(125, 151, 190, 0.16);
  box-shadow: none;
  opacity: 1;
}

.feature-glass-panel::after {
  inset: auto 22px 22px;
  z-index: 2;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background:
    radial-gradient(circle at 88% 50%, rgba(95, 131, 255, 0.78) 0 15px, transparent 16px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 249, 255, 0.86));
  box-shadow: 0 18px 40px rgba(92, 120, 172, 0.12);
  opacity: 1;
}

.chat-stage {
  inset: 54px 22px 96px;
}

.glass-bubble {
  max-width: 78%;
  padding: 12px 16px;
  border-radius: 22px;
  font-size: 14px;
  line-height: 1.55;
}

.bubble-user {
  top: 126px;
  right: 0;
  border-radius: 22px 22px 8px 22px;
}

.bubble-ai {
  top: 36px;
  left: 0;
  border-radius: 22px 22px 22px 8px;
}

#personal .bubble-ai {
  top: 32px;
}

#personal .bubble-user {
  top: 142px;
}

#memory .bubble-user {
  top: 34px;
}

#memory .bubble-ai {
  top: 142px;
  max-width: 82%;
}

.multimodal-stage .media-bubble {
  top: 22px;
  max-width: 86%;
}

.voice-bubble {
  top: 126px;
  right: 0;
}

.multimodal-stage .bubble-ai {
  top: 220px;
  max-width: 84%;
}

@media (max-width: 860px) {
  .feature-story {
    grid-template-columns: 1fr;
  }

  .feature-glass-panel {
    width: min(390px, 100%);
    min-height: 590px;
  }
}

@media (max-width: 620px) {
  .feature-glass-panel {
    min-height: 560px;
    border-radius: 30px;
  }

  .chat-stage {
    inset: 50px 18px 90px;
  }

  .glass-bubble {
    max-width: 84%;
  }
}

/* Chat preview v3: tighter phone, looser editorial copy column. */
.feature-story {
  grid-template-columns: minmax(520px, 1fr) minmax(300px, 0.56fr);
  gap: clamp(58px, 8vw, 118px);
  align-items: center;
  padding: clamp(72px, 9vw, 112px) 0;
}

.feature-copy {
  max-width: 640px;
}

.feature-copy h2 {
  max-width: 9em;
  font-size: clamp(40px, 4.6vw, 62px);
  line-height: 1.08;
}

.feature-copy p:not(.section-kicker) {
  max-width: 35em;
  margin-top: 26px;
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 2.05;
}

.feature-points {
  max-width: 610px;
  margin-top: 46px;
  gap: 22px;
}

.feature-points li {
  align-items: flex-start;
  text-align: left;
}

.feature-points .fp-ic {
  width: 58px;
  height: 58px;
  margin-bottom: 16px;
}

.feature-points strong {
  font-size: 16px;
}

.feature-points em {
  max-width: 13em;
  font-size: 13px;
}

.feature-glass-panel {
  width: min(330px, 100%);
  min-height: 570px;
  border-radius: 34px;
}

.feature-glass-panel::before {
  top: 16px;
  width: 96px;
  height: 6px;
}

.feature-glass-panel::after {
  inset: auto 18px 20px;
  height: 54px;
}

.chat-stage {
  inset: 50px 18px 88px;
}

.glass-bubble {
  max-width: 82%;
  padding: 11px 14px;
  font-size: 13px;
}

#personal .bubble-ai {
  top: 30px;
}

#personal .bubble-user {
  top: 140px;
}

#memory .bubble-ai {
  max-width: 84%;
}

.multimodal-stage .media-bubble {
  grid-template-columns: 64px auto;
  gap: 10px;
  max-width: 88%;
}

.sky-placeholder {
  width: 64px;
  height: 48px;
}

@media (max-width: 860px) {
  .feature-story {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .feature-copy {
    max-width: none;
  }

  .feature-copy h2 {
    max-width: none;
  }

  .feature-points {
    max-width: none;
  }

  .feature-glass-panel {
    width: min(330px, 100%);
    min-height: 550px;
  }
}

@media (max-width: 620px) {
  .feature-story {
    padding: 52px 0 62px;
  }

  .feature-copy h2 {
    font-size: clamp(34px, 10vw, 44px);
  }

  .feature-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .feature-points li {
    align-items: center;
    text-align: center;
  }

  .feature-points .fp-ic {
    width: 50px;
    height: 50px;
    margin-bottom: 12px;
  }

  .feature-points em {
    max-width: none;
    font-size: 12px;
  }

  .feature-glass-panel {
    width: min(330px, 100%);
    min-height: 535px;
    border-radius: 30px;
  }
}

/* Feature layout v4: copy, character cutout, real chat surface. */
.feature-story {
  grid-template-columns: minmax(430px, 0.95fr) minmax(260px, 0.52fr) minmax(300px, 0.58fr);
  gap: clamp(22px, 3.6vw, 54px);
  min-height: 680px;
  align-items: center;
}

.feature-copy {
  position: relative;
  z-index: 8;
  align-self: center;
}

.feature-points {
  position: relative;
  z-index: 9;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 58px);
  max-width: 680px;
}

.feature-points .fp-ic {
  width: 62px;
  height: 62px;
}

.feature-character {
  position: relative;
  z-index: 3;
  align-self: end;
  justify-self: center;
  width: min(360px, 28vw);
  height: 540px;
  margin-inline: clamp(-34px, -2vw, -12px);
  pointer-events: none;
}

.feature-character::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 23%;
  width: 112%;
  height: 58%;
  border-radius: 50%;
  transform: translateX(-50%);
  background:
    radial-gradient(ellipse at 50% 48%, rgba(211, 229, 255, 0.9), rgba(211, 229, 255, 0.28) 50%, transparent 72%),
    radial-gradient(circle at 78% 34%, rgba(95, 131, 255, 0.2), transparent 24%);
  filter: blur(2px);
}

.feature-character::after {
  content: "";
  position: absolute;
  left: 6%;
  right: 6%;
  bottom: 0;
  height: 118px;
  background: linear-gradient(180deg, transparent, rgba(245, 250, 255, 0.96) 70%);
}

.feature-character img {
  position: absolute;
  left: 50%;
  bottom: -8px;
  z-index: 1;
  width: 132%;
  max-width: none;
  height: 100%;
  object-fit: cover;
  object-position: 50% 28%;
  transform: translateX(-50%);
  filter:
    drop-shadow(0 32px 55px rgba(36, 64, 118, 0.18))
    saturate(0.92)
    brightness(1.08);
  -webkit-mask-image: radial-gradient(ellipse 42% 52% at 50% 43%, #000 0 58%, rgba(0, 0, 0, 0.78) 70%, transparent 100%);
  mask-image: radial-gradient(ellipse 42% 52% at 50% 43%, #000 0 58%, rgba(0, 0, 0, 0.78) 70%, transparent 100%);
}

.real-chat.feature-glass-panel {
  width: min(318px, 100%);
  min-height: 600px;
  justify-self: end;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 34px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(227, 240, 255, 0.92), rgba(255, 255, 255, 0) 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(244, 249, 255, 0.82));
}

.real-chat.feature-glass-panel::before,
.real-chat.feature-glass-panel::after {
  content: none;
}

.chat-phone-header {
  min-height: 72px;
  display: grid;
  grid-template-columns: 30px 38px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 12px 14px 10px;
  border-bottom: 1px solid rgba(117, 150, 204, 0.08);
}

.chat-icon-button {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: #071844;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 10px 24px rgba(80, 114, 175, 0.1);
  font-size: 24px;
  line-height: 1;
}

.chat-avatar-image,
.chat-mini-avatar {
  display: block;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 18%;
  background: #e8f2ff;
}

.chat-avatar-image {
  width: 38px;
  height: 38px;
}

.chat-person {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.chat-person strong {
  color: #071844;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.1;
}

.chat-person span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #6d7c9a;
  font-size: 10.5px;
  font-weight: 500;
}

.chat-person i {
  width: 6px;
  height: 6px;
  display: block;
  border-radius: 50%;
  background: #35c86f;
}

.real-chat .chat-stage {
  position: relative;
  inset: auto;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 10px 14px 16px;
}

.chat-time-divider {
  width: 100%;
  margin: 0;
  color: #66758f;
  font-size: 10.5px;
  font-weight: 400;
  line-height: 1.4;
  text-align: center;
}

.chat-message-row {
  display: flex;
  align-items: flex-start;
  gap: 9px;
}

.chat-message-row.from-user {
  width: 100%;
  flex-direction: column;
  align-items: flex-end;
}

.chat-message-row.from-ai {
  align-items: flex-start;
}

.chat-message-row.voice-row {
  margin-top: -4px;
}

.chat-message-row.photo-row {
  margin-bottom: -5px;
}

.chat-mini-avatar {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  margin-top: 2px;
}

.chat-message {
  max-width: 210px;
  margin: 0;
  padding: 9px 12px;
  border-radius: 15px;
  color: #24365f;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 28px rgba(82, 115, 178, 0.12);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.55;
}

.from-user .chat-message {
  color: #ffffff;
  border-radius: 16px 16px 5px 16px;
  background: linear-gradient(135deg, #86b4ff, #4f70f4);
  box-shadow: 0 16px 30px rgba(79, 111, 247, 0.2);
}

.from-ai .chat-message {
  border-radius: 16px 16px 16px 5px;
}

.real-chat .sky-placeholder {
  width: 112px;
  height: 76px;
  display: block;
  border: 3px solid rgba(255, 255, 255, 0.92);
  border-radius: 12px;
  background: url("assets/backgrounds/multimodal-sky-photo-v1.jpg") center 38% / cover no-repeat;
  box-shadow: 0 12px 24px rgba(79, 111, 247, 0.2);
}

.real-chat .voice-bars {
  margin-right: 5px;
}

.user-voice-row {
  margin-top: -4px;
}

.user-voice-block {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.user-voice-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-voice-message {
  min-width: 126px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
  padding-top: 8px;
  padding-bottom: 8px;
}

.user-voice-mic {
  width: 12px;
  height: 14px;
  display: block;
  flex: 0 0 auto;
}

.user-voice-duration {
  color: rgba(255, 255, 255, 0.92);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
}

.voice-transcript-toggle {
  min-width: 56px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  border-radius: 999px;
  color: #666f82;
  background: rgba(31, 36, 54, 0.08);
  font-size: 10px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.voice-transcript-wrap {
  width: 180px;
  margin-top: 8px;
  padding: 8px 10px 9px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 8px 20px rgba(82, 115, 178, 0.1);
}

.user-voice-transcript-wrap {
  width: 126px;
  align-self: flex-end;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: none;
  opacity: 0.72;
}

.user-voice-transcript-wrap .voice-transcript {
  font-weight: 500;
}

.voice-transcript {
  margin: 0;
  padding: 0;
  color: #334566;
  background: transparent;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.45;
  text-align: left;
}

.chat-life-photo {
  width: 88px;
  height: 108px;
  display: block;
  border: 3px solid rgba(255, 255, 255, 0.92);
  border-radius: 12px 12px 12px 5px;
  object-fit: cover;
  object-position: center;
  box-shadow: 0 12px 24px rgba(82, 115, 178, 0.18);
}

.chat-compose {
  min-height: 68px;
  display: grid;
  grid-template-columns: 38px 1fr 38px;
  align-items: center;
  gap: 9px;
  padding: 0 16px 18px;
}

.compose-mic-button,
.send-dot {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 26px rgba(82, 115, 178, 0.12);
}

.compose-mic-icon {
  width: 12px;
  height: 14px;
  display: block;
}

.compose-placeholder {
  min-height: 38px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  color: #9aa9c0;
  background: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  font-weight: 700;
}

.send-dot {
  color: #ffffff;
  background: linear-gradient(135deg, #86b4ff, #4f70f4);
  font-size: 24px;
  font-weight: 500;
}

@media (max-width: 980px) {
  .feature-story {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.68fr);
    gap: 26px;
  }

  .feature-character {
    display: none;
  }

  .real-chat.feature-glass-panel {
    justify-self: center;
  }
}

@media (max-width: 700px) {
  .feature-story {
    grid-template-columns: 1fr;
  }

  .feature-character {
    display: block;
    width: min(300px, 88vw);
    height: 360px;
    margin: -16px auto -48px;
    grid-row: auto;
  }

  .feature-character img {
    width: 116%;
    -webkit-mask-image: radial-gradient(ellipse 45% 54% at 50% 43%, #000 0 58%, rgba(0, 0, 0, 0.78) 70%, transparent 100%);
    mask-image: radial-gradient(ellipse 45% 54% at 50% 43%, #000 0 58%, rgba(0, 0, 0, 0.78) 70%, transparent 100%);
  }

  .real-chat.feature-glass-panel {
    width: min(318px, 100%);
    min-height: 590px;
    justify-self: center;
  }
}

@media (max-width: 420px) {
  .feature-story {
    gap: 18px;
  }

  .feature-character {
    height: 330px;
    margin-bottom: -44px;
  }

  .real-chat.feature-glass-panel {
    width: min(310px, 100%);
  }

  .chat-message {
    max-width: 198px;
  }
}

/* Personal feature v11: use the real transparent female cutout and a clearer mic icon. */
#personal .personal-character {
  width: min(330px, 27vw);
  height: 520px;
  transform: translateX(-33%);
}

#personal .personal-character::before {
  top: 20%;
  width: 126%;
  height: 62%;
  background:
    radial-gradient(ellipse at 50% 48%, rgba(215, 231, 255, 0.82), rgba(226, 240, 255, 0.42) 46%, transparent 72%),
    radial-gradient(circle at 76% 32%, rgba(95, 131, 255, 0.2), transparent 20%),
    conic-gradient(from 38deg at 50% 52%, transparent 0 22%, rgba(111, 153, 255, 0.16) 25%, transparent 31%, transparent 55%, rgba(111, 153, 255, 0.11) 58%, transparent 64%);
}

#personal .personal-character::after {
  display: none;
}

#personal .personal-character img {
  width: 118%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  filter:
    drop-shadow(0 28px 48px rgba(70, 105, 150, 0.16));
  -webkit-mask-image: none;
  mask-image: none;
}

#personal .chat-avatar-image,
#personal .chat-mini-avatar {
  object-position: 50% 24%;
}

.compose-mic-button {
  background: rgba(255, 255, 255, 0.92);
}

@media (max-width: 700px) {
  #personal .personal-character {
    width: min(310px, 88vw);
    height: 350px;
    transform: none;
  }

  #personal .personal-character img {
    width: 108%;
    -webkit-mask-image: none;
    mask-image: none;
  }
}

/* Hero v18: remove the glass card frame and let the sky scene blend into the page. */
.sky-landing .hero-section {
  min-height: calc(100svh - 118px);
  margin-top: 82px;
  padding: clamp(58px, 8vw, 92px) clamp(40px, 6vw, 76px);
  border: 0;
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-shadow: none;
  isolation: isolate;
}

.sky-landing .hero-section::before {
  content: none;
}

.sky-landing .hero-section::after {
  content: "";
  position: absolute;
  top: -86px;
  right: -18vw;
  z-index: 0;
  width: min(1080px, 82vw);
  height: min(720px, 62vw);
  pointer-events: none;
  background: url("assets/reference/hero-mock-right.png") center / cover no-repeat;
  opacity: 0.94;
  -webkit-mask-image: radial-gradient(ellipse 66% 54% at 67% 38%, #000 0 44%, rgba(0, 0, 0, 0.58) 64%, transparent 94%);
  mask-image: radial-gradient(ellipse 66% 54% at 67% 38%, #000 0 44%, rgba(0, 0, 0, 0.58) 64%, transparent 94%);
}

.sky-landing .hero-content {
  position: relative;
  z-index: 2;
}

@media (max-width: 620px) {
  .sky-landing .hero-section {
    min-height: 600px;
    margin-top: 72px;
    padding: 154px 20px 42px;
    border-radius: 0;
    background: transparent;
  }

  .sky-landing .hero-section::before {
    content: none;
  }

  .sky-landing .hero-section::after {
    top: -42px;
    right: -72vw;
    width: 760px;
    height: 360px;
    opacity: 0.82;
  }
}

/* Memory feature v20: updated transparent male cutout, scaled closer to the personal section. */
#memory .memory-character {
  width: min(320px, 26vw);
  height: 470px;
}

#memory .memory-character img {
  width: 110%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  filter:
    drop-shadow(0 28px 50px rgba(70, 105, 150, 0.15))
    saturate(1.02)
    brightness(1.03);
  -webkit-mask-image: linear-gradient(180deg, #000 0 88%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0 88%, transparent 100%);
}

@media (max-width: 700px) {
  #memory .memory-character {
    width: min(300px, 84vw);
    height: 315px;
    margin: -16px auto -36px;
  }

  #memory .memory-character img {
    width: 104%;
  }
}

/* Memory feature v21: soften the formal male portrait and pull the section closer to the first feature's warmth. */
#memory.feature-story {
  grid-template-columns: minmax(430px, 0.92fr) minmax(300px, 0.6fr) minmax(300px, 0.58fr);
  gap: clamp(14px, 2.6vw, 38px);
}

#memory .feature-copy {
  max-width: 520px;
}

#memory .feature-copy p:not(.section-kicker) {
  max-width: 500px;
}

#memory .feature-points {
  gap: clamp(24px, 3.5vw, 50px);
}

#memory .memory-character {
  z-index: 4;
  width: min(370px, 29vw);
  height: 548px;
  align-self: end;
  justify-self: center;
  margin-left: clamp(-66px, -4.4vw, -36px);
  margin-right: clamp(-42px, -3.2vw, -18px);
  transform: translate(1%, -3%);
}

#memory .memory-character::before {
  top: 14%;
  width: 138%;
  height: 68%;
  background:
    radial-gradient(ellipse at 48% 42%, rgba(255, 255, 255, 0.86), rgba(232, 242, 255, 0.48) 42%, transparent 72%),
    radial-gradient(circle at 70% 30%, rgba(142, 178, 255, 0.22), transparent 25%),
    conic-gradient(from 22deg at 50% 50%, transparent 0 18%, rgba(117, 154, 255, 0.13) 22%, transparent 31%, transparent 58%, rgba(255, 255, 255, 0.28) 64%, transparent 74%);
  filter: blur(2.5px);
}

#memory .memory-character::after {
  left: -16%;
  right: -10%;
  bottom: -5px;
  height: 160px;
  display: block;
  background:
    radial-gradient(ellipse at 50% 82%, rgba(255, 255, 255, 0.96), rgba(245, 250, 255, 0.9) 48%, transparent 76%),
    linear-gradient(180deg, transparent, rgba(245, 250, 255, 0.98) 74%);
}

#memory .memory-character img {
  bottom: -4px;
  width: 124%;
  height: 104%;
  object-fit: contain;
  object-position: center bottom;
  transform: translateX(-50%) translateY(-4px);
  filter:
    drop-shadow(0 30px 50px rgba(64, 91, 150, 0.14))
    saturate(0.96)
    brightness(1.16)
    contrast(0.92);
  opacity: 0.96;
  -webkit-mask-image: radial-gradient(ellipse 54% 58% at 50% 42%, #000 0 58%, rgba(0, 0, 0, 0.82) 72%, transparent 100%);
  mask-image: radial-gradient(ellipse 54% 58% at 50% 42%, #000 0 58%, rgba(0, 0, 0, 0.82) 72%, transparent 100%);
}

#memory .real-chat.feature-glass-panel {
  position: relative;
  z-index: 5;
  transform: translateX(-4px);
  background:
    radial-gradient(ellipse at 26% 8%, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0) 42%),
    radial-gradient(ellipse at 68% 0%, rgba(213, 232, 255, 0.86), rgba(255, 255, 255, 0) 46%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 249, 255, 0.84));
  box-shadow: 0 34px 86px rgba(66, 96, 154, 0.13);
}

#memory .from-ai > div {
  display: grid;
  gap: 7px;
}

#memory .from-ai .chat-message {
  max-width: 205px;
}

#memory .from-ai .chat-message.follow-up {
  margin-top: 0;
  max-width: 196px;
  color: #344568;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 24px rgba(82, 115, 178, 0.09);
}

@media (max-width: 980px) {
  #memory.feature-story {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.68fr);
    gap: 26px;
  }

  #memory .memory-character {
    display: none;
  }

  #memory .real-chat.feature-glass-panel {
    transform: none;
  }
}

@media (max-width: 700px) {
  #memory.feature-story {
    grid-template-columns: minmax(0, 1fr);
    width: min(100% - 32px, 390px);
    gap: 18px;
  }

  #memory .feature-copy {
    width: 100%;
    max-width: none;
  }

  #memory .feature-copy h2,
  #memory .feature-copy p:not(.section-kicker),
  #memory .feature-points {
    width: 100%;
    max-width: none;
  }

  #memory .memory-character {
    display: block;
    width: min(330px, 88vw);
    height: 350px;
    margin: -18px auto -46px;
    transform: none;
  }

  #memory .memory-character img {
    width: 112%;
    height: 106%;
    transform: translateX(-50%);
  }

  #memory .real-chat.feature-glass-panel {
    width: min(318px, 100%);
    justify-self: center;
  }
}

/* Feature portraits v22: lift all character cutouts and remove the oval crop edge. */
.feature-character {
  transform: translateY(-56px);
}

.feature-character::after {
  left: -10%;
  right: -10%;
  bottom: -4px;
  height: 132px;
  background: linear-gradient(180deg, transparent 0%, rgba(245, 250, 255, 0.72) 56%, rgba(245, 250, 255, 0.98) 100%);
}

.feature-character img {
  -webkit-mask-image: none;
  mask-image: none;
}

#personal .personal-character {
  transform: translate(-33%, -56px);
}

#memory .memory-character {
  transform: translate(1%, -96px);
}

#memory .memory-character::after {
  background: linear-gradient(180deg, transparent 0%, rgba(245, 250, 255, 0.72) 58%, rgba(245, 250, 255, 0.98) 100%);
}

#memory .memory-character img {
  transform: translateX(-50%);
  -webkit-mask-image: none;
  mask-image: none;
}

@media (max-width: 700px) {
  .feature-character,
  #personal .personal-character,
  #memory .memory-character {
    transform: translateY(-18px);
  }

  #memory .memory-character {
    margin-bottom: -58px;
  }

  #memory .memory-character img {
    transform: translateX(-50%);
  }
}

/* Feature portraits v23: align portrait bounds with the left copy block across the three feature sections. */
.feature-character,
#personal .personal-character,
#memory .memory-character,
#multimodal .multimodal-character {
  align-self: center;
  justify-self: center;
  width: min(330px, 25.5vw);
  height: clamp(405px, 28vw, 438px);
  margin-left: clamp(-22px, -1.4vw, -10px);
  margin-right: clamp(-28px, -1.8vw, -12px);
  transform: none;
}

.feature-character::after,
#memory .memory-character::after {
  left: -14%;
  right: -14%;
  bottom: -3px;
  height: 112px;
  background: linear-gradient(180deg, transparent 0%, rgba(245, 250, 255, 0.64) 58%, rgba(245, 250, 255, 0.98) 100%);
}

.feature-character img,
#personal .personal-character img,
#memory .memory-character img,
#multimodal .multimodal-character img {
  bottom: 0;
  width: 112%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  transform: translateX(-50%);
  -webkit-mask-image: none;
  mask-image: none;
}

#personal .personal-character {
  width: min(325px, 25vw);
}

#personal .personal-character img {
  width: 112%;
}

#memory .memory-character {
  width: min(360px, 27.5vw);
}

#memory .memory-character img {
  width: 118%;
  height: 102%;
  bottom: -2px;
}

#multimodal .multimodal-character {
  width: min(360px, 27vw);
  transform: translateY(22px);
}

#multimodal .multimodal-character::before {
  top: 13%;
  width: 132%;
  height: 70%;
  background:
    radial-gradient(ellipse at 50% 45%, rgba(255, 255, 255, 0.88), rgba(232, 242, 255, 0.48) 42%, transparent 72%),
    radial-gradient(circle at 72% 30%, rgba(142, 178, 255, 0.2), transparent 24%);
}

#multimodal .multimodal-character img {
  width: 122%;
  height: 103%;
  bottom: -2px;
  filter:
    drop-shadow(0 28px 48px rgba(70, 105, 150, 0.14))
    brightness(1.07)
    contrast(0.96);
}

#multimodal .multimodal-character::after {
  left: -18%;
  right: -18%;
  bottom: -20px;
  height: 150px;
  background:
    radial-gradient(ellipse at 50% 88%, rgba(245, 250, 255, 0.98) 0 18%, rgba(245, 250, 255, 0.54) 44%, transparent 74%),
    linear-gradient(180deg, transparent 0%, rgba(245, 250, 255, 0.46) 54%, rgba(245, 250, 255, 0.98) 100%);
  filter: blur(6px);
}

#multimodal .chat-avatar-image,
#multimodal .chat-mini-avatar {
  object-position: 50% 36%;
}

@media (max-width: 700px) {
  .feature-character,
  #personal .personal-character,
  #memory .memory-character,
  #multimodal .multimodal-character {
    width: min(330px, 88vw);
    height: 350px;
    margin: -10px auto -48px;
    transform: none;
  }

  #multimodal .multimodal-character {
    transform: translateY(18px);
  }

  #personal .personal-character img,
  #memory .memory-character img,
  #multimodal .multimodal-character img {
    width: 112%;
    height: 104%;
    transform: translateX(-50%);
  }
}

/* Feature portraits v24: keep copy above portraits and prevent the portrait from washing out text. */
.feature-copy {
  position: relative;
  z-index: 20;
  isolation: isolate;
}

.feature-copy h2,
.feature-copy p,
.feature-points,
.feature-points li,
.feature-points strong,
.feature-points em {
  position: relative;
  z-index: 21;
}

.feature-points strong,
.feature-points em {
  text-shadow:
    0 1px 0 rgba(245, 250, 255, 0.9),
    0 0 12px rgba(245, 250, 255, 0.82);
}

#multimodal .feature-copy {
  max-width: 700px;
}

#multimodal .feature-points {
  max-width: 700px;
  gap: clamp(24px, 3vw, 38px);
}

#multimodal .feature-points em {
  max-width: 16em;
}

.feature-character,
#memory .memory-character,
#multimodal .multimodal-character {
  z-index: 2;
}

#multimodal .multimodal-character {
  width: min(342px, 25.5vw);
  transform: translate(24px, 34px);
  z-index: 1;
}

#multimodal .real-chat.feature-glass-panel {
  position: relative;
  z-index: 4;
}

#multimodal .multimodal-character img {
  width: 116%;
  height: 102%;
}

#multimodal .multimodal-character::after {
  left: -22%;
  right: -12%;
  bottom: -18px;
  height: 138px;
  background:
    radial-gradient(ellipse at 18% 82%, rgba(245, 250, 255, 0.96) 0 20%, rgba(245, 250, 255, 0.58) 44%, transparent 72%),
    radial-gradient(ellipse at 54% 88%, rgba(245, 250, 255, 0.96) 0 18%, rgba(245, 250, 255, 0.5) 44%, transparent 74%),
    linear-gradient(180deg, transparent 0%, rgba(245, 250, 255, 0.42) 58%, rgba(245, 250, 255, 0.96) 100%);
}

@media (max-width: 700px) {
  #multimodal .multimodal-character {
    width: min(330px, 88vw);
    transform: translateY(26px);
  }
}

/* Copy test v1: keep the top nav on the first screen and remove the closing glass-card treatment. */
.sky-landing .site-header {
  position: absolute;
  top: 0;
  left: 50%;
  right: auto;
  z-index: 100;
  width: min(1180px, calc(100% - 56px));
  transform: translateX(-50%);
  pointer-events: auto;
}

.sky-landing .brand,
.sky-landing .nav-download {
  position: relative;
  z-index: 101;
}

.sky-landing main {
  padding-top: 1px;
}

.sky-landing .companion-section {
  width: 100%;
  padding: clamp(64px, 9vw, 120px) 0 clamp(30px, 5vw, 64px);
}

.sky-landing .companion-card {
  min-height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.sky-landing .companion-card::before {
  content: none;
}

.sky-landing .companion-copy {
  max-width: 980px;
  margin: 0 auto;
}

.sky-landing .final-section {
  padding: clamp(34px, 6vw, 76px) 0 clamp(68px, 9vw, 120px);
  background: transparent;
}

@media (max-width: 620px) {
  .sky-landing .site-header {
    width: calc(100% - 32px);
    height: 64px;
  }

  .sky-landing .companion-card h2 span {
    white-space: normal;
  }
}