:root {
  --ink: #17252d;
  --muted: #65707a;
  --deep: #15034d;
  --deep-2: #26115f;
  --violet: #8360df;
  --lavender: #bbb3d6;
  --pink: #ffa9c3;
  --sky: #87daf7;
  --paper: #ffffff;
  --soft: #f3effa;
  --line: rgba(255, 255, 255, 0.16);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

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

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

.shell {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #12033f;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  transition: background 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
}

.site-header.is-scrolled {
  background: rgba(18, 3, 63, 0.86);
  box-shadow: 0 14px 34px rgba(11, 3, 38, 0.2);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.nav {
  position: relative;
  min-height: 112px;
  display: grid;
  grid-template-columns: 290px 1fr auto;
  align-items: center;
  gap: 28px;
}

.brand {
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brand img {
  display: block;
  height: auto;
}

.brand-mark {
  width: 58px;
  flex: 0 0 auto;
}

.brand-wordmark {
  width: 202px;
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  gap: clamp(24px, 3.2vw, 46px);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
}

.nav-links a {
  position: relative;
  padding: 12px 0;
  transition: color 0.25s ease, transform 0.25s ease;
}

.nav-links a:hover {
  color: #ffd4e1;
  transform: translateY(-2px);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s ease;
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  transform: scaleX(1);
}

.download-pill,
.button,
.store-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  font-weight: 900;
  white-space: nowrap;
}

.download-pill {
  grid-column: 3;
  justify-self: end;
  padding: 0 26px;
  color: #fff;
  background: #050407;
  font-size: 18px;
  font-style: italic;
  box-shadow: 0 0 0 rgba(255, 169, 195, 0);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.download-pill:hover {
  background: #1d132b;
  box-shadow: 0 10px 26px rgba(255, 169, 195, 0.22);
  transform: translateY(-2px);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 44px 0 100px;
  color: #fff;
  background:
    radial-gradient(circle at 86% 44%, rgba(141, 218, 255, 0.35), transparent 22%),
    radial-gradient(circle at 40% 4%, rgba(160, 102, 255, 0.28), transparent 20%),
    linear-gradient(180deg, #1b075a 0%, #3d2575 50%, #756fa8 82%, #958db5 100%);
  box-shadow: inset 0 -120px 90px -82px #958db5;
}

.hero::before,
.hero::after,
.about-hero::before,
.faq-section::before {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.52;
}

.hero::before {
  width: 170px;
  height: 170px;
  top: 18%;
  right: 11%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.26), transparent 68%);
  animation: floatSoft 8s ease-in-out infinite;
}

.hero::after {
  width: 250px;
  height: 250px;
  left: -70px;
  bottom: 15%;
  background: radial-gradient(circle, rgba(255, 169, 195, 0.24), transparent 70%);
  animation: floatSoft 10s ease-in-out infinite reverse;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(520px, 1.14fr);
  align-items: start;
  gap: 20px;
}

.hero-copy {
  margin-top: 50px;
}

.eyebrow {
  width: fit-content;
  padding: 10px 18px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.14);
  font-size: 16px;
  font-weight: 800;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
}

.hero h1 {
  width: fit-content;
  margin: 14px 0 18px;
  font-size: clamp(42px, 5.2vw, 72px);
  line-height: 1;
  font-style: italic;
}

.hero-subtitle {
  width: fit-content;
  margin: 6px 0 34px min(7vw, 132px);
  font-size: clamp(20px, 2.2vw, 30px);
  font-weight: 900;
  font-style: italic;
}

.hero-text {
  max-width: 610px;
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 24px;
  line-height: 1.55;
  font-weight: 700;
}

.hero-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 52px;
}

.button {
  min-width: 170px;
  padding: 0 30px;
  color: #fff;
  font-size: 20px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.button-dark {
  background: #050407;
}

.button-soft {
  background: linear-gradient(90deg, #7248da, #c08dff);
}

.effect-menu {
  position: relative;
  z-index: 4;
}

.effect-trigger {
  min-width: 190px;
}

.effect-panel {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  width: 304px;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 20px;
  padding: 26px 32px 34px;
  border: 1px solid rgba(185, 151, 255, 0.52);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 28px rgba(58, 31, 127, 0.2), inset 0 0 18px rgba(151, 99, 255, 0.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(0, 8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.effect-panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -18px;
  height: 18px;
}

.effect-panel a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 9px;
  color: #5c5368;
  background: linear-gradient(180deg, #fff, #f7f3ff);
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 5px 14px rgba(112, 71, 202, 0.16), inset 0 0 10px rgba(124, 77, 218, 0.12);
  transition: color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.effect-panel a:hover,
.effect-panel a:focus-visible {
  color: #7248da;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(112, 71, 202, 0.22), inset 0 0 10px rgba(124, 77, 218, 0.16);
}

.effect-menu.is-open .effect-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, 0);
}

.effect-menu.is-open .effect-trigger {
  transform: translateY(-3px);
  filter: saturate(1.08);
  box-shadow: 0 14px 28px rgba(20, 5, 72, 0.2);
}

.button:hover,
.store-row a:hover,
.resource-card a:hover {
  transform: translateY(-3px);
  filter: saturate(1.08);
  box-shadow: 0 14px 28px rgba(20, 5, 72, 0.2);
}

.button-icon {
  width: 18px;
  height: 18px;
  margin-right: 9px;
  object-fit: contain;
  flex: 0 0 auto;
}

.hero-art {
  position: relative;
  min-height: 520px;
  left: -0px;
  top: -100px;
  pointer-events: none;
}

.hero-art::before {
  content: "";
  position: absolute;
  inset: 25% -5% auto 4%;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(165, 238, 255, 0.34), rgba(177, 112, 255, 0.12) 48%, transparent 70%);
  filter: blur(14px);
  transform: rotate(-11deg);
}

.hero-art img {
  position: relative;
  width: min(860px, 110%);
  margin-left: 0;
  filter: drop-shadow(0 28px 48px rgba(18, 4, 68, 0.28));
  animation: phoneFloat 6.5s ease-in-out infinite;
  will-change: transform;
}

.feature-band {
  background: #958db5;
  padding: 0 0 58px;
}

.quick-features {
  transform: translateY(-32px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  border-radius: 22px;
  background: #282635;
  color: #fff;
  box-shadow: 0 18px 34px rgba(23, 13, 61, 0.18);
}

.quick-features div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 90px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 20px;
  font-weight: 800;
  transition: background 0.25s ease, transform 0.25s ease;
}

.quick-features div:hover {
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
}

.quick-features img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex: 0 0 auto;
}

.quick-features div:last-child {
  border-right: 0;
}

.features {
  margin-top: -1px;
  padding: 0 0 96px;
  background: linear-gradient(180deg, #958db5 0%, #e5def1 100%);
}

.section-title {
  text-align: center;
}

.section-title h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.1;
  font-weight: 900;
}

.section-title p {
  margin: 22px auto 0;
  max-width: 690px;
  color: #a24f61;
  font-size: 18px;
  font-weight: 800;
}

.section-title.light {
  color: #fff;
  padding: 18px 0 58px;
}

.section-title.light p {
  color: rgba(255, 255, 255, 0.78);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.feature-card {
  position: relative;
  min-height: 164px;
  overflow: hidden;
  border-radius: 22px;
  padding: 26px 28px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(59, 38, 104, 0.08);
  transform: translateZ(0);
  transition: transform 0.32s ease, box-shadow 0.32s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(59, 38, 104, 0.16);
}

.feature-card h3 {
  position: relative;
  margin: 14px 0 14px;
  font-size: 24px;
  font-weight: 900;
}

.feature-card p {
  position: relative;
  margin: 0;
  max-width: 500px;
  color: #27323a;
  font-size: 13px;
  line-height: 1.55;
  font-weight: 700;
}

.feature-card-wide > p {
  max-width: 58%;
}

.subtitle-card > p {
  max-width: 50%;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: #875ee8;
  background: #f3d8f7;
  font-size: 28px;
  font-weight: 900;
  transition: transform 0.32s ease;
}

.feature-card:hover .card-icon,
.value-grid article:hover span {
  transform: scale(1.06) rotate(-3deg);
}

.card-icon img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.feature-card-wide {
  grid-column: span 2;
  min-height: 194px;
}

.resource-card,
.feature-card-tall {
  grid-column: span 3;
}

.resource-card {
  color: #fff;
  background:
    radial-gradient(circle at 82% 20%, rgba(255, 255, 255, 0.35), transparent 18%),
    linear-gradient(135deg, #9066e7, #f09ebe);
  text-align: center;
}

.resource-card .card-icon {
  margin: 0 auto;
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
}

.resource-card p {
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.88);
}

.resource-card a {
  display: inline-flex;
  margin-top: 22px;
  padding: 13px 22px;
  border-radius: 999px;
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  font-weight: 900;
}

.blue-card {
  grid-column: span 4;
  background: linear-gradient(135deg, #d6eef8, #63c8ef);
}

.feature-image-card {
  align-self: stretch;
  min-width: 0;
  overflow: hidden;
  border-radius: 22px;
  transform: translateZ(0);
  transition: transform 0.32s ease, box-shadow 0.32s ease;
}

.feature-image-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(59, 38, 104, 0.16);
}

.feature-image-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.resource-image-card {
  grid-column: span 1;
}

.voice-image-card,
.local-image-card {
  grid-column: span 1;
}

.screen-card {
  grid-column: span 1;
}

.cloud-card {
  grid-column: span 1;
}

.feature-illustration {
  position: absolute;
  pointer-events: none;
  z-index: 1;
}

.voice-illustration {
  right: 36px;
  bottom: 28px;
  width: 150px;
  opacity: 0.32;
}

.cloud-illustration {
  left: 48px;
  bottom: 28px;
  width: 150px;
  opacity: 0.48;
}

.pink-card {
  grid-column: span 4;
  background: linear-gradient(135deg, #ffe4ec, #fff2f5);
}

.small-wide {
  grid-column: span 2;
  min-height: 164px;
}

.subtitle-card {
  overflow: visible;
  z-index: 2;
}

.watermark {
  position: absolute;
  top: -8px;
  left: 39%;
  width: 270px;
  opacity: 0.28;
  pointer-events: none;
}

.mascot {
  position: absolute;
  right: 8px;
  bottom: -18px;
  width: 330px;
  animation: mascotFloat 5.8s ease-in-out infinite;
}

.mascot-wand {
  right: 22px;
  bottom: -12px;
  width: 190px;
  border-bottom-right-radius: 22px;
}

.subtitle-card > img {
  position: absolute;
  right: -14px;
  bottom: 0;
  width: 320px;
  border-bottom-right-radius: 22px;
  z-index: 1;
}

.scenes {
  padding: 92px 0 124px;
  background: #fff;
}

.scenes-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}

.scenes h2 {
  margin: 0 0 12px;
  font-size: 34px;
  font-weight: 900;
}

.scenes p {
  margin: 0;
  color: #56606a;
  font-size: 16px;
  font-weight: 800;
}

.scene-arrows {
  display: flex;
  gap: 16px;
}

.scene-arrows span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid #e4dde9;
  border-radius: 50%;
  color: #817a89;
  font-size: 26px;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.scene-arrows span:hover {
  color: #fff;
  background: #2b008f;
  transform: translateY(-2px);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border-radius: 28px;
  color: #fff;
  box-shadow: 0 16px 36px rgba(47, 30, 84, 0.12);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.scene-card::after {
  content: none;
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(68, 34, 104, 0.54) 100%);
}

.scene-card img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  transition: transform 0.55s ease, filter 0.35s ease;
}

.scene-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 52px rgba(47, 30, 84, 0.2);
}

.scene-card:hover img {
  transform: scale(1.055);
  filter: saturate(1.08) contrast(1.04);
}

.scene-card div {
  display: none;
  position: absolute;
  z-index: 1;
  left: 26px;
  right: 20px;
  bottom: 32px;
}

.scene-card h3 {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 900;
}

.scene-card p {
  color: rgba(255, 255, 255, 0.9);
}

.download-section {
  padding: 86px 0 98px;
  background: linear-gradient(180deg, #8b82ac, #70669a);
}

.download-card {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  display: grid;
  grid-template-columns: 1fr 310px;
  align-items: center;
  gap: 64px;
  padding: 76px 74px;
  border-radius: 34px;
  color: #fff;
  background: #2b008f;
  box-shadow: 0 28px 70px rgba(38, 16, 91, 0.24);
}

.download-card::before,
.download-card::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.13);
}

.download-card::before {
  width: 140px;
  height: 140px;
  left: 42%;
  top: 72px;
  animation: floatSoft 9s ease-in-out infinite;
}

.download-card::after {
  width: 210px;
  height: 210px;
  right: 30%;
  bottom: -60px;
  animation: floatSoft 11s ease-in-out infinite reverse;
}

.download-card h2,
.download-card p,
.store-row,
.qr-panel {
  position: relative;
  z-index: 1;
}

.download-card h2 {
  margin: 0 0 28px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.12;
}

.download-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 24px;
  font-weight: 800;
}

.store-row {
  display: flex;
  gap: 22px;
  margin-top: 52px;
}

.store-row a {
  gap: 8px;
  min-width: 128px;
  min-height: 42px;
  color: #fff;
  background: #050407;
  font-size: 14px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.store-row img {
  width: 16px;
  height: 16px;
  object-fit: contain;
  flex: 0 0 auto;
}

.qr-panel {
  justify-self: end;
  width: 250px;
  padding: 30px 24px 28px;
  border-radius: 28px;
  background: #b6a5d9;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 18px 36px rgba(14, 5, 48, 0.16);
}

.qr-box {
  width: 170px;
  height: 170px;
  margin: 0 auto 20px;
  border-radius: 12px;
  background:
    linear-gradient(90deg, rgba(43, 0, 143, 0.1) 1px, transparent 1px),
    linear-gradient(rgba(43, 0, 143, 0.1) 1px, transparent 1px),
    #fff;
  background-size: 18px 18px;
}

.qr-panel strong {
  display: block;
  color: #f06c96;
  font-size: 17px;
}

.qr-panel span {
  display: block;
  margin-top: 6px;
  color: #65587e;
  font-size: 12px;
  font-weight: 800;
}

.about-hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 44px 0 100px;
  text-align: center;
  color: #fff;
  background:
    radial-gradient(circle at -6% 75%, rgba(126, 94, 224, 0.8), transparent 16%),
    linear-gradient(180deg, #17044f 0%, #30166e 54%, #756fa8 84%, #958db5 100%);
  box-shadow: inset 0 -120px 90px -82px #958db5;
}

.about-hero::before {
  width: 230px;
  height: 230px;
  right: 9%;
  top: 16%;
  background: radial-gradient(circle, rgba(135, 218, 247, 0.25), transparent 68%);
  animation: floatSoft 9s ease-in-out infinite;
}

.about-hero h1 {
  margin: 40px 0 18px;
  font-size: clamp(42px, 5.2vw, 72px);
  line-height: 1;
  font-weight: 900;
  font-style: italic;
}

.about-hero .shell,
.faq-section .shell {
  position: relative;
  z-index: 1;
}

.about-hero p {
  margin: 0 0 52px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.25;
  font-weight: 900;
}

.about-art {
  width: min(920px, 100%);
  margin: 0 auto;
  border-radius: 34px;
  box-shadow: 0 35px 80px rgba(13, 4, 48, 0.28);
  transition: transform 0.45s ease, box-shadow 0.45s ease;
}

.about-art:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 46px 92px rgba(13, 4, 48, 0.34);
}

.values-section {
  padding: 124px 0 164px;
  background: #c3bdd4;
}

.values-section .section-title p {
  color: #fff;
}

.values-section .section-title h2 {
  color: #fff;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 72px;
}

.value-grid article {
  min-height: 280px;
  padding: 42px 32px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.66);
  transition: transform 0.32s ease, background 0.32s ease, box-shadow 0.32s ease;
}

.value-grid article:hover {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 22px 46px rgba(54, 40, 86, 0.14);
  transform: translateY(-7px);
}

.value-grid span {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: #9a5068;
  background: #eadde9;
  font-size: 22px;
}

.value-grid span img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.value-grid h3 {
  margin: 34px 0 22px;
  font-size: 28px;
  font-weight: 900;
}

.value-grid p {
  margin: 0;
  color: #5f6670;
  font-size: 17px;
  line-height: 1.68;
  font-weight: 700;
}

.faq-section {
  position: relative;
  min-height: 760px;
  padding: 44px 0 100px;
  color: #fff;
  background:
    radial-gradient(circle at 32% 40%, rgba(112, 72, 199, 0.24), transparent 24%),
    linear-gradient(180deg, #17044f 0%, #30166e 54%, #756fa8 84%, #958db5 100%);
  box-shadow: inset 0 -120px 90px -82px #958db5;
}

.faq-section::before {
  width: 260px;
  height: 260px;
  right: 8%;
  top: 18%;
  background: radial-gradient(circle, rgba(255, 169, 195, 0.2), transparent 68%);
  animation: floatSoft 10s ease-in-out infinite;
}

.faq-section h1 {
  margin: 40px 0 24px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1;
  font-weight: 900;
}

.faq-list {
  display: grid;
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: background 0.25s ease;
}

.faq-item:hover,
.faq-item.is-open {
  background: transparent;
}

.faq-item button {
  width: 100%;
  min-height: 74px;
  display: grid;
  grid-template-columns: 1fr 26px;
  align-items: center;
  gap: 22px;
  padding: 0;
  border: 0;
  color: #fff;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.faq-item button span {
  font: inherit;
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 900;
}

.faq-item button b {
  width: 18px;
  height: 18px;
  border-right: 4px solid #fff;
  border-bottom: 4px solid #fff;
  transform: rotate(45deg);
  transition: transform 0.25s ease;
}

.faq-item.is-open button b {
  transform: rotate(225deg);
}

.faq-answer {
  display: block;
  max-height: 0;
  overflow: hidden;
  padding: 0 0 0 36px;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(13px, 1vw, 15px);
  /* line-height: 1.78; */
  line-height: 2.50;
  font-weight: 800;
  opacity: 0;
  transform: translateY(-8px);
  transition: max-height 0.36s ease, opacity 0.25s ease, transform 0.25s ease, padding-bottom 0.36s ease;
}

.faq-answer ul {
  max-width: 1060px;
  margin: 0;
  padding-left: 1.2em;
  display: grid;
  gap: 0;
}

.faq-answer li {
  margin: 0;
  line-height: inherit;
}

.faq-answer li:last-child {
  margin-bottom: 0;
}

.faq-item.is-open .faq-answer {
  max-height: var(--answer-height, 600px);
  padding-bottom: 34px;
  opacity: 1;
  transform: translateY(0);
}

.site-footer {
  padding: 92px 0 60px;
  background: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 0.9fr;
  gap: 56px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
}

.footer-logo img {
  width: 62px;
  height: 62px;
  object-fit: contain;
}

.footer-logo strong {
  color: #050407;
  font-size: 34px;
  line-height: 1;
  font-weight: 900;
  font-style: italic;
}

.footer-brand p,
.footer-meta p {
  color: #68717a;
  font-size: 16px;
  line-height: 1.8;
}

.footer-grid h3 {
  margin: 0 0 24px;
  font-size: 18px;
  font-weight: 900;
}

.footer-grid a {
  display: block;
  margin-bottom: 18px;
  color: #3f474f;
  font-size: 16px;
  font-weight: 700;
  transition: color 0.22s ease, transform 0.22s ease;
}

.footer-grid a:hover {
  color: #7248da;
  transform: translateX(4px);
}

.footer-meta {
  margin-top: 64px;
  padding-top: 30px;
  border-top: 1px solid #ece8ef;
}

.footer-meta p {
  margin: 0 0 16px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes phoneFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }

  50% {
    transform: translate3d(0, -14px, 0) rotate(-1deg);
  }
}

@keyframes mascotFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes floatSoft {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  50% {
    transform: translate3d(18px, -18px, 0);
  }
}

@media (max-width: 980px) {
  .shell {
    width: min(100% - 32px, 760px);
  }

  .nav {
    grid-template-columns: 1fr auto;
    min-height: 88px;
  }

  .brand {
    gap: 12px;
  }

  .brand-mark {
    width: 46px;
  }

  .brand-wordmark {
    width: 158px;
  }

  .nav-links {
    position: static;
    transform: none;
    grid-column: 1 / -1;
    order: 3;
    justify-content: flex-start;
    gap: 22px;
    overflow-x: auto;
    padding-bottom: 14px;
    font-size: 16px;
  }

  .download-pill {
    grid-column: 2;
    min-height: 36px;
    padding: 0 18px;
    font-size: 15px;
  }

  .hero {
    padding: 28px 0 76px;
  }

  .hero h1 {
    margin-top: 10px;
  }

  .hero-subtitle {
    margin-left: 0;
  }

  .hero-grid,
  .download-card {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    margin-top: 0;
  }

  .hero-art {
    min-height: auto;
    left: auto;
    top: auto;
  }

  .hero-art img {
    margin: 20px auto 0;
    width: min(760px, 100%);
  }

  .effect-panel {
    left: 0;
    transform: translate(0, 8px);
  }

  .effect-menu.is-open .effect-panel {
    transform: translate(0, 0);
  }

  .quick-features,
  .scene-grid,
  .value-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .feature-card,
  .resource-card,
  .blue-card,
  .pink-card,
  .feature-card-tall,
  .resource-image-card,
  .voice-image-card,
  .local-image-card {
    grid-column: span 1;
  }

  .feature-card-wide,
  .small-wide {
    grid-column: span 2;
  }

  .download-card {
    padding: 48px 36px;
  }

  .qr-panel {
    justify-self: start;
  }

  .about-hero,
  .faq-section {
    min-height: auto;
    padding: 28px 0 76px;
  }

  .about-hero h1,
  .faq-section h1 {
    margin-top: 8px;
  }

  .faq-section h1 {
    margin-bottom: 18px;
  }

  .faq-section {
    padding-bottom: 64px;
  }

  .faq-item button {
    min-height: 68px;
  }

}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 24px, 520px);
  }

  .brand-mark {
    width: 40px;
  }

  .brand-wordmark {
    width: 136px;
  }

  .nav {
    gap: 14px;
  }

  .nav-links {
    gap: 18px;
  }

  .hero-text {
    font-size: 18px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .hero-actions,
  .store-row,
  .scenes-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .effect-menu,
  .effect-trigger,
  .effect-panel {
    width: 100%;
  }

  .effect-panel {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 22px;
  }

  .quick-features,
  .feature-grid,
  .scene-grid,
  .value-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .feature-card-wide,
  .resource-image-card,
  .voice-image-card,
  .local-image-card,
  .feature-card-tall,
  .small-wide {
    grid-column: span 1;
  }

  .quick-features div {
    min-height: 62px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .feature-card {
    border-radius: 24px;
    padding: 30px 26px;
  }

  .feature-image-card {
    border-radius: 24px;
  }

  .mascot,
  .subtitle-card > img {
    opacity: 0.22;
  }

  .download-card {
    border-radius: 24px;
    padding: 36px 24px;
  }

  .download-card p {
    font-size: 18px;
  }

  .qr-panel {
    width: 100%;
  }

  .faq-item button {
    min-height: 64px;
  }

  .faq-answer {
    padding-left: 0;
    font-size: 13px;
  }

  .site-footer {
    padding-top: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}